CN207865038U - A kind of natural gas decompression transport system - Google Patents
A kind of natural gas decompression transport system Download PDFInfo
- Publication number
- CN207865038U CN207865038U CN201820108960.3U CN201820108960U CN207865038U CN 207865038 U CN207865038 U CN 207865038U CN 201820108960 U CN201820108960 U CN 201820108960U CN 207865038 U CN207865038 U CN 207865038U
- Authority
- CN
- China
- Prior art keywords
- regulator
- pipe
- charge
- air supply
- natural gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 194
- 239000003345 natural gas Substances 0.000 title claims abstract description 99
- 230000006837 decompression Effects 0.000 title claims description 22
- 239000007789 gas Substances 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 claims description 26
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 description 4
- 239000003205 fragrance Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model discloses a kind of natural gases to be depressured transport system, its key points of the technical solution are that：The surge pipe being connected in series with including air inlet pipe, with air inlet pipe and the air supply pipe being connected in series with surge pipe, regulator is installed on the surge pipe, the regulator includes the pressure regulator valve to natural gas depressurization in pipeline, and the regulator includes the level-one regulator and two stage pressure regulator being connected in series with；The surge pipe includes the first surge pipe and the second surge pipe being connected in parallel；The air supply pipe includes the first air supply pipe, the second air supply pipe and third air supply pipe；First air supply pipe is connected with two stage pressure regulator, and second air supply pipe and third air supply pipe are connected with level-one regulator.Its advantage is that various operating modes can be coped with well to the influence caused by gas conveying system, and the natural gas for exporting different pressures value is used for different user.
Description
Technical field
The utility model belongs to gas conveying system, more particularly to a kind of natural gas is depressured transport system.
Background technology
Natural gas decompression transport system is to be used for the depressurizing system of regulating gas supply pressure in gas conveying system,
Basic task is that the higher Imported gas pressure of prime is adjusted to the required gas pressure in downstream.It is defeated in natural gas
It is the important link for connecting each process in pipe network.
Most of natural gases are depressured transport system at present, referring to Fig. 1, the main air inlet pipe 1 and air inlet pipe for including natural gas
1 surge pipe being connected in series with and the air supply pipe being connected in series with surge pipe.Regulator, pressure regulation dress are wherein installed on surge pipe
It sets including the pressure regulator valve 212, multiple directional control valve 211 and safety cut-off valve 213 to natural gas depressurization in pipeline.Wherein multi-way reversing
Valve 211 is built-in with safety valve, and when system pressure value is excessively high, safety valve unlatching discharges portion of natural gas, to reduce system
Pressure avoids system because overvoltage damages, when system pressure is excessively high and safety valve can not reduce system pressure in time, safety
Stop valve 213 in time blocks pipeline, to avoid system from being damaged because of overvoltage.
It is usually mounted with valve 11, pressure sensor 12 and temperature sensor 13 in natural gas air inlet pipe 1, passes through pressure
Sensor 12 can measure the interior pressure value of air inlet pipe 1, and the interior temperature of air inlet pipe 1 can be measured by temperature sensor 13
Value, when system pressure or when the temperature is excessively high, staff can close valve 11 to avoid system because overvoltage damages；Air supply pipe
On be usually mounted with valve 11, pressure sensor 12 and temperature sensor 13, the function of each component is identical as above-mentioned function.
But since same natural gas line is usually supplied to multiple users, different users generally requires the day of different pressures
Right gas, such as industrial required natural pressure force value and civilian required natural pressure force value are often different；In addition, natural gas
Pipeline is sometimes because of various operating modes（Influence such as extreme weather and human intervention）And cause natural gas line can not normal work
Make.Therefore there is also there is limitations for above-mentioned natural gas decompression transport system.
Utility model content
The purpose of this utility model is to provide a kind of natural gas decompression transport system, its advantage is that can cope with well various
Operating mode is to the influence caused by gas conveying system, and the natural gas for exporting different pressures value is used for different user.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of natural gas decompression is defeated
Send system, including air inlet pipe and the air inlet pipe surge pipe being connected in series with and the air supply pipe being connected in series with surge pipe, the pressure regulation
Regulator is installed, the regulator includes the pressure regulator valve to natural gas depressurization in pipeline on pipe；
The regulator includes the level-one regulator and two stage pressure regulator being connected in series with；
The surge pipe includes the first surge pipe and the second surge pipe being connected in parallel；
The air supply pipe includes the first air supply pipe, the second air supply pipe and third air supply pipe；
First air supply pipe is connected with two stage pressure regulator, second air supply pipe and third air supply pipe and level-one pressure regulation
Device is connected.
Through the above technical solutions, high-pressure natural gas enters transport system from air inlet pipe, enter in surge pipe later, and
The higher fuel gas inlet pressure of prime is adjusted to downstream user institute by the pressure regulator valve in the logical regulator mounted on surge pipe
Natural gas is delivered to user by the gaseous-pressure needed from air supply pipe later.
To meet the needs of different user, regulator includes the level-one regulator and two being connected in series with described in this programme
Grade regulator passes through the second air supply pipe and third to make high-pressure natural gas after level-one regulator carries out level-one pressure regulation
Air supply pipe supply needs the user of elevated pressures natural gas to use, and then the natural gas after level-one pressure regulation passes through second voltage regulation again
Device carries out second voltage regulation, thus by the first air supply pipe for needing the user of low pressure natural gas to use.
For system operation irregularity caused by avoiding pipeline from breaking down, this programme is provided with two the first pressure regulation in parallel
Pipe and the second surge pipe, it is ensured that system still can work normally when a certain pipeline breaks down wherein.
The utility model is further arranged to：The air inlet pipe is connected with first and is in charge of, and described first is in charge of both ends difference
It is connected with the inlet end of the first surge pipe and the second surge pipe；
The middle part of first surge pipe and the second surge pipe is in charge of connected by second, and described second is in charge of positioned at level-one
Between regulator and two stage pressure regulator；
Second air supply pipe and third air supply pipe are in charge of with second to be connected；
The outlet side of first surge pipe and the second surge pipe is connected with third and is in charge of, and the third is in charge of to be supplied with first
Tracheae is connected.
Through the above technical solutions, natural gas enters transport system from air inlet pipe, so enter first be in charge of after shunt
Into the first surge pipe and the second surge pipe in parallel.Natural gas is depressurized by level-one regulator, and a part of natural gas passes through
Two are in charge of and are delivered to the second air supply pipe and third air supply pipe, and another part natural gas is delivered to after being depressurized by two stage pressure regulator
Three branch pipes, and then first is delivered in pressure pipe.To which the natural gas transportation of different pressures value to different users, is allowed to obtain
The natural gas of pressure value needed for obtaining.
The utility model is further arranged to：The level-one regulator includes that first be mounted on the first surge pipe is adjusted
Pressure device and the second regulator on the second surge pipe；
The inlet end and outlet side of first regulator and the second regulator are respectively provided with valve；
The two stage pressure regulator include be mounted on the first surge pipe on third regulator and be mounted on the second pressure regulation
The 4th regulator on pipe；
First regulator, the second regulator, third regulator and the 4th regulator inlet end and go out
Gas end is respectively provided with valve；
First regulator, the second regulator, third regulator and the 4th regulator include for pacifying
The multi-way valve of full diffusion system pressure and the safety cut-off valve that system overvoltage is protected.
Through the above technical solutions, when the first regulator or the second regulator break down, it can be by closing it
The valve at both ends is isolated, and then so that natural gas is in charge of by second after the decompression of the regulator of normal work and led to second
For pressure pipe and third for pressure pipe.
When third regulator or the 4th regulator break down, can by close the valve at its both ends by its every
From, and then so that natural gas is in charge of by third after the decompression of the regulator of normal work and lead to first for pressure pipe.
First regulator, the second regulator, third regulator and the 4th regulator structure, function are identical,
Including multi-way valve, pressure regulator valve and safety cut-off valve, wherein multi-way valve includes safety valve, when system pressure value is excessively high, safety valve
Unlatching discharges portion of natural gas, to reduce system pressure, system is avoided to be damaged because of overvoltage.
When system pressure is excessively high and safety valve can not reduce system pressure in time, safety cut-off valve in time cuts pipeline
It is disconnected, to avoid system from being damaged because of overvoltage.
The utility model is further arranged to：First filter and third filter are installed on first surge pipe,
The first filter be located at the first regulator and first be in charge of between, the third filter be located at third regulator and
Between second is in charge of；
Second filter and the 4th filter are installed, second filter is located at second and adjusts on second surge pipe
Pressure device and first be in charge of between, the 4th filter be located at the 4th regulator and second be in charge of between.
Through the above technical solutions, the first filter may filter that the solid suspension in natural gas, so as to keep away
Exempt from solid suspension and accumulate in the first regulator to cause the first regulator operation irregularity.
Second filter, third filter and the 4th filter serve the same role, to ensure to enter the
The spatter property and described device of natural gas in one regulator, the second regulator, third regulator and the 4th regulator
Normal work.
The utility model is further arranged to：It is connected with odorization machine on first air supply pipe.
Through the above technical solutions, odorant can be added into the first air supply pipe in odorization machine, when the first air supply pipe is let out
When leakage, odorant can be diffused into surrounding air together with natural gas molecule, to make staff let out the first air supply pipe
Dew is detected.
The utility model is further arranged to：The inlet end of the third air supply pipe is connected with the 4th and is in charge of, and the 4th is in charge of
It is connected with the first branch pipe and the second branch pipe, first branch pipe and the second branch pipe are connected in parallel；
First branch pipe and the second branch pipe inlet end are in charge of with second to be connected, on first branch pipe and the second branch pipe
Valve is installed；
First branch pipe is connected with odorization machine.
Through the above technical solutions, the natural gas after the decompression of level-one regulator level-one is in charge of from second into first
In pipe and the second branch pipe；
Natural gas in first branch pipe and the second branch pipe is in charge of to be pooled in third air supply pipe by the 4th leads to user；
The setting of wherein odorization machine can be used for being detected the leakage of the first branch pipe.
Valve opening under normal condition on the first branch pipe, the valve on the second branch pipe is closed, when the first branch pipe is let out
When leakage, the valve of the first branch pipe can be closed, the valve on the second branch pipe be opened, to ensure the normal work of system.
The utility model is further arranged to：The 5th is connected between first surge pipe and the second surge pipe to be in charge of；
Described 5th, which is in charge of one end, is connected between first filter and the first regulator, and the described 5th is in charge of the other end
It is connected between the second filter and the second regulator；
The inlet end and outlet side of the first filter and the second filter are connected separately with valve.
Through the above technical solutions, when first filter or the second filter break down, it can be by closing first
Filter or the valve at the second filter both ends are isolated, the mistake that can be worked normally to the natural gas warp in making first to be in charge of
After filter filtering, it is in charge of to branch in the first surge pipe and the second surge pipe through the 5th and depressurizes.
The utility model is further arranged to：It is equipped at the pressure regulator valve air inlet pre- to the natural gas for entering pressure regulator valve
The heater of heat.
Through the above technical solutions, being inhaled due to the reduction of pressure during being depressurized by pressure regulator valve due to high-pressure gas
Heat, so as to cause freezing for pressure regulator valve, heater can be such that it is depressurized to it in pressure regulator valve to entering the gas-preheating of pressure regulator valve
Pressure regulator valve will not be caused to freeze because combustion gas is largely absorbed heat in the process.
The utility model is further arranged to：First quantity of fuel indicator is installed on first surge pipe, it is described
First quantity of fuel indicator is in charge of positioned at second between third regulator；
Second quantity of fuel indicator is installed, the second quantity of fuel indicator is located at the on second surge pipe
Two are in charge of between the 4th regulator；
Third quantity of fuel indicator is installed, the third quantity of fuel indicator is located at the 5th on first branch pipe
Filter and the 4th be in charge of between.
Through the above technical solutions, when natural gas is revealed after the decompression of third regulator, the first amount of fuel
Amount indicator can detect the reduction of amount of natural gas, and then judge that pipeline is revealed, and staff can be in time by third tune
The valve closing at pressure device both ends overhauls it.
The function of the second quantity of fuel indicator and third quantity of fuel indicator and the first quantity of fuel indicator
Function it is identical, therefore which is not described herein again.
The utility model is further arranged to：Pressure sensor and temperature sensor are installed in the air inlet pipe；
Pressure sensor and temperature sensor are installed on second air supply pipe and third air supply pipe.
Through the above technical solutions, the interior pressure value of air inlet pipe can be measured by pressure sensor, passed by temperature
Sensor can measure the interior temperature value of air inlet pipe, and when system pressure or when the temperature is excessively high, staff can close valve to keep away
Exempt from system because overvoltage damages.
The interior pressure value that air supply pipe can be measured by pressure sensor can measure air supply pipe by temperature sensor
Interior temperature value, when system pressure or when the temperature is excessively high, staff can close valve and be exported to user to avoid system
The natural gas of big pressure value and cause user equipment to be damaged, to cause economic loss that accident even occurs.
In conclusion the utility model has the advantages that：
1, the utility model is by provided with two pressure regulation pipelines in parallel, so as to cope with various operating modes well to day
Influence caused by right gas transport system；
2, the utility model by provided with two-stage decompression device to realize to the second depressurized of natural gas, and will be different
The natural gas transportation of pressure value is to different user terminals to meet the needs of different user is to gas pressure.
Description of the drawings
Fig. 1 is background technology attached drawing；
Fig. 2 is the structural schematic diagram of embodiment 1；
Fig. 3 is the structural schematic diagram of embodiment 2；
Fig. 4 is the structural schematic diagram of embodiment 3.
In figure, 1, air inlet pipe；11, valve；12, pressure sensor；13, temperature sensor；14, first is in charge of；15, second
It is in charge of；16, third is in charge of；17, the 4th is in charge of；18, the 5th is in charge of；2, the first surge pipe；21, the first regulator；211, more
Way reversing valve；212, pressure regulator valve；213, safety cut-off valve；214, heater；22, third regulator；23, first filter；
24, third filter；25, quantity of fuel indicator；3, the second surge pipe；31, the second regulator；32, the 4th regulator；
33, the second filter；34, the 4th filter；4, for pressure pipe；41, the first air supply pipe；42, the second air supply pipe；43, third supplies
Pipe；44, the first branch pipe；441, the 5th filter；45, the second branch pipe；46, odorization machine；.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment 1
A kind of natural gas decompression transport system, as shown in Fig. 2, including air inlet pipe 1, mined high-pressure natural gas passes through
Air inlet pipe 1 enters system.Air inlet pipe 1 is connected in series with surge pipe, and surge pipe includes the first surge pipe 2 and second being connected in parallel
Surge pipe 3, regulator is equipped on surge pipe, and regulator includes the level-one regulator being connected in series with and second voltage regulation dress
It sets, level-one regulator and two stage pressure regulator include pressure regulator valve 212, and pressure regulator valve 212 can be by the higher fuel gas inlet pressure of prime
Power is adjusted to the required gaseous-pressure of downstream user.Surge pipe is connected in series with the air supply pipe supplied for user, air supply pipe packet
The first air supply pipe 41, the second air supply pipe 42 and third air supply pipe 43 are included, the first air supply pipe 41 is connected with two stage pressure regulator, and second
Air supply pipe 42 and third air supply pipe 43 are connected with level-one regulator.
To meet the needs of different user, level-one regulator and two stage pressure regulator can make high-pressure natural gas through level-one tune
After pressure device carries out level-one pressure regulation, the use for needing elevated pressures natural gas is supplied by the second air supply pipe 42 and third air supply pipe 43
Family uses, and then the natural gas after level-one pressure regulation carries out second voltage regulation by two stage pressure regulator again, to be supplied by first
Tracheae 41 is for needing the user of low pressure natural gas to use.It is system operation irregularity caused by avoiding pipeline from breaking down simultaneously,
The first surge pipe 2 and the second surge pipe 3 being connected in parallel with each other can guarantee system when pipeline a certain wherein breaks down
Still it can work normally.
Be connected with first in air inlet pipe figure, on 1 and be in charge of 14, first be in charge of 14 both ends respectively with the first surge pipe 2 and second
The inlet end of surge pipe 3 is connected.Meanwhile first the middle part of surge pipe 2 and the second surge pipe 3 be communicated with second and be in charge of 15, first
The outlet side of surge pipe 2 and the second surge pipe 3 is connected with third and is in charge of 16.For natural gas from air inlet pipe figure, 1 enters delivery system
System, and then enter first and be in charge of in the first surge pipe 2 and the second surge pipe 3 for branching to parallel connection after 14.Wherein, second is in charge of
15 between level-one regulator and two stage pressure regulator, and the second air supply pipe 42 and third air supply pipe 43 are in charge of 15 with second
It is connected, third is in charge of 16 and is connected with the first air supply pipe 41.Natural gas is depressurized by level-one regulator, and a part of natural gas passes through
Two, which are in charge of 15, is delivered to the second air supply pipe 42 and third air supply pipe 43, and another part natural gas is defeated after being depressurized by two stage pressure regulator
It send to third branch pipe, and then is delivered to first in pressure pipe 414.Thus by the natural gas transportation of different pressures value to different use
Family is allowed to obtain the natural gas of required pressure value.
Wherein, level-one regulator include be mounted on the first surge pipe 2 on the first regulator 21 and be mounted on second
The inlet end of the second regulator 31 on surge pipe 3, the first regulator 21 and the second regulator 31 and outlet side difference
Equipped with valve 11, two stage pressure regulator includes the third regulator 22 being mounted on the first surge pipe 2 and is adjusted mounted on second
The 4th regulator 32 in pressure pipe 3.First regulator 21, the second regulator 31, third regulator 22 and the 4th are adjusted
The inlet end of pressure device 32 and outlet side are respectively provided with valve 11.When event occurs for the first regulator 21 or the second regulator 31
It when barrier, can be isolated by closing the valve 11 at its both ends, and then make natural gas after the decompression of the regulator of normal work
It is in charge of 15 by second and leads to second for pressure pipe 424 and third for pressure pipe 434.Similarly, when third regulator 22 or the 4th
It when regulator 32 breaks down, can be isolated by closing the valve 11 at its both ends, and then make natural gas through normal work
Regulator decompression after be in charge of 16 by third and lead to first for pressure pipe 414.First regulator 21, the second regulator
31, third regulator 22 and the 4th regulator 32 include for the multi-way valve of safe diffusion system pressure and to system mistake
Press the safety cut-off valve 213 of protection.Wherein multi-way valve includes safety valve, and when system pressure value is excessively high, safety valve is opened portion
Divide natural gas release, to reduce system pressure, system is avoided to be damaged because of overvoltage.And when system pressure is excessively high and safety valve
When can not reduce system pressure in time, safety cut-off valve 213 in time blocks pipeline, to avoid system from being damaged caused by overvoltage
It is bad.
Preferably, first filter 23 and third filter 24 are installed on the first surge pipe 2, first filter 23 is located at
First regulator 21 and first is in charge of between 14, third filter 24 be located at third regulator 22 and second be in charge of 15 it
Between, wherein first filter 23 may filter that the solid suspension in natural gas, and the is accumulated in can avoid solid suspension
Cause 21 operation irregularity of the first regulator, third filter 24 identical as 23 function of first filter in one regulator 21.
Second filter 33 and the 4th filter 34 are installed, second filter 33 is located at the second pressure regulation dress on second surge pipe 3
It sets 31 and first to be in charge of between 14, the 4th filter 34 is located at the 4th regulator 32 and second and is in charge of between 15.Second
Filter 33 and the 4th filter 34 are identical as 23 function of first filter, to ensure to enter the first regulator 21, second
The spatter property of natural gas and the normal work of described device in regulator 31, third regulator 22 and the 4th regulator 32
Make.
The present embodiment can further install the first quantity of fuel indicator 25, the first fuel on the first surge pipe 2
Quantity Indicator 25 is in charge of positioned at second between 15 and third regulator 22.And then the second combustion of installation on the second surge pipe 3
Expect that Quantity Indicator 25, the second quantity of fuel indicator 25 are in charge of 15 and the 4th between regulator 32 positioned at second.Additionally
Third quantity of fuel indicator 25 can be installed on the first branch pipe 44, third quantity of fuel indicator 25 is located at the 5th filtering again
Device and the 4th is in charge of between 17.When natural gas is revealed after the decompression of third regulator 22, the first quantity of fuel refers to
Show that device 25 can detect the reduction of amount of natural gas, and then judge that pipeline is revealed, staff can be in time by third pressure regulation
The closing of valve 11 at 22 both ends of device overhauls it.Wherein, the second quantity of fuel indicator 25 and third quantity of fuel refer to
Show that the function of device 25 is identical as the function of the first quantity of fuel indicator 25, therefore which is not described herein again.
In order to be preferably monitored to the temperature of system, it is preferable that can be in air inlet pipe figure, 42 and of the 1, second air supply pipe
Pressure sensor 12 and temperature sensor 13 are added on third air supply pipe 43.Air inlet pipe figure can be measured by pressure sensor 12
In, 1 interior pressure value can be measured by temperature sensor 13 in air inlet pipe figure, and 1 interior temperature value works as system pressure
Or when the temperature is excessively high, staff can close valve 11 to avoid system because overvoltage damages.In addition, passing through pressure sensor
12 can measure the interior pressure value of air supply pipe, and the interior temperature value of air supply pipe can be measured by temperature sensor 13, when being
It unites pressure or when the temperature is excessively high, staff can close the natural gas that valve 11 exports user to avoid system excessive pressure value
And user equipment is caused to be damaged, to cause economic loss that accident even occurs.
The course of work：For mined high-pressure natural gas from air inlet pipe figure, 1, which enters natural gas, is depressured transport system, peace
For dress just in air inlet pipe figure, pressure sensor 12 and temperature sensor 13 on 1 can be in time to the gas pressures of channel interior
It is detected with temperature.
Natural gas enters first and is in charge of in 14 later, and a part of natural gas is in charge of 14 from first and enters the first surge pipe
In 2, progress level-one decompression, a part of natural gas in the first regulator 21 are entered after being filtered by first filter 23 and is entered
Second is in charge of in 15, and another part natural gas enters the progress of third regulator 22 two level after the filtering of third filter 24 and subtracts
Pressure, and then enter third and be in charge of in 16.
Another part natural gas is in charge of 14 from first and is entered in the second surge pipe 3, is filtered by the second filter 33 laggard
Enter into the second regulator 31 and carry out level-one decompression, a part of natural gas enters second and is in charge of in 15, and another part is natural
Gas enters the 4th regulator 32 after the filtering of the 4th filter 34 and carries out second depressurized, and then enters third and be in charge of 16
In.
Wherein, when first filter 23 or the second filter 33 break down, its both ends valve 11 can be closed, the
One, which is in charge of the natural gas in 14, is all in charge of 18 through the 5th after the second filter 33 or first filter 23 filter and branches to
In first surge pipe 2 and the second surge pipe 3.When the first regulator 21 or the second regulator 31 break down, can incite somebody to action
Its both ends valve 11 is closed, and the natural gas in the first surge pipe 2 and the second surge pipe 3 is made to be pooled to the second pressure regulation of normal work
Second is entered in device 31 or the first regulator 21 after progress level-one pressure regulation to be in charge of in 15.
Second is in charge of by the natural gas of level-one decompression in 15, and a part passes to second for being carried out to user in pressure pipe 424
Pressure supply, another part is passed in the first branch pipe 44 and then is passed into third air supply pipe 43 carries out pressure supply to user.Wherein first
The odorization machine connected on branch pipe 44 can help the leakage situation of staff's the first branch pipe 44 of inspection, when the first branch pipe 44 is let out
When leakage, the valve 11 on the first branch pipe 44 can be closed and open the valve 11 on the second branch pipe 45 by staff, make second
It is in charge of the natural gas in 15 to enter in third air supply pipe 43 by the second branch pipe 45.
Third is in charge of in 16 the natural gas after second depressurized and is passed into the first air supply pipe 41, and then makes for user
With.
Embodiment 2
A kind of natural gas is depressured transport system, and difference from Example 1 is, as shown in figure 3, third air supply pipe 43
Inlet end is connected with the 4th and is in charge of 17, and the 4th, which is in charge of 17, is connected with the first branch pipe 44 and the second branch pipe 45, the first branch pipe 44 and
Two branch pipe 45 is in parallel even.Wherein, the first branch pipe 44 and 45 inlet end of the second branch pipe are in charge of 15 with second and are connected, 44 He of the first branch pipe
It is mounted on valve 11 on second branch pipe 45.Natural gas after the decompression of level-one regulator level-one is in charge of 15 from second and enters the
In one branch pipe 44 and the second branch pipe 45, the natural gas in the first branch pipe 44 and the second branch pipe 45 is in charge of 17 by the 4th and is pooled to
Lead to user in three air supply pipes, when the first branch pipe 44 or the second branch pipe 45 break down when, staff can will thereon
The closing of valve 11 is isolated, while being supplied using only another branch pipe, to ensure that system can still work normally.
Further, this programme can add odorization machine on the first air supply pipe 41.Odorization machine one end and the first air supply pipe
41 are connected, and odorant can be added into the first air supply pipe 41 in odorization machine, and when the first air supply pipe 41 leaks, odorant can be with
Natural gas molecule is diffused into surrounding air together, to make the leakage of the first air supply pipe of staff couple 41 be detected；Add
The smelly machine other end is connected with the first branch pipe 44, and the valve 11 under normal condition on the first branch pipe 44 is opened, on the second branch pipe 45
Valve 11 is closed, and when the first branch pipe 44 leaks, can be closed the valve 11 of the first branch pipe 44, will be on the second branch pipe 45
Valve 11 is opened, to ensure the normal work of system.
Embodiment 3
A kind of natural gas decompression transport system, difference from Example 3 is, as shown in figure 4,212 air inlet of pressure regulator valve
The heater preheated to the natural gas for entering pressure regulator valve 212 is installed at mouthful.The mistake depressurized by pressure regulator valve 212 due to high-pressure gas
It is absorbed heat due to the reduction of pressure in journey, so as to cause freezing for pressure regulator valve 212, heater can be to entering pressure regulator valve 212
Gas-preheating makes it pressure regulator valve 212 will not be caused to freeze because combustion gas is largely absorbed heat in pressure regulator valve 212 is to its decompression process.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (10)
1. a kind of natural gas is depressured transport system, including air inlet pipe (1), the surge pipe that is connected in series with air inlet pipe (1) and with tune
The air supply pipe that pressure pipe is connected in series with, regulator is equipped on the surge pipe, and the regulator includes to natural in pipeline
The pressure regulator valve (212) of gas decompression, it is characterized in that：
The regulator includes the level-one regulator and two stage pressure regulator being connected in series with；
The surge pipe includes the first surge pipe (2) being connected in parallel and the second surge pipe (3)；
The air supply pipe includes the first air supply pipe (41), the second air supply pipe (42) and third air supply pipe (43)；
First air supply pipe (41) is connected with two stage pressure regulator, second air supply pipe (42) and third air supply pipe (43) with
Level-one regulator is connected.
2. a kind of natural gas according to claim 1 is depressured transport system, it is characterized in that：
The air inlet pipe (1) is connected with first and is in charge of (14), described first be in charge of (14) both ends respectively with the first surge pipe (2) and
The inlet end of second surge pipe (3) is connected；
It is communicated with second in the middle part of first surge pipe (2) and the second surge pipe (3) and is in charge of (15）, described second is in charge of (15）
Between level-one regulator and two stage pressure regulator；
Second air supply pipe (42) and third air supply pipe (43) and second are in charge of (15）It is connected；
The outlet side of first surge pipe (2) and the second surge pipe (3) is connected with third and is in charge of (16）, the third is in charge of
(16）It is connected with the first air supply pipe (41).
3. a kind of natural gas according to claim 2 is depressured transport system, it is characterized in that：
The level-one regulator includes the first regulator (21) being mounted on the first surge pipe (2) and is adjusted mounted on second
The second regulator (31) in pressure pipe (3)；
The inlet end and outlet side of first regulator (21) and the second regulator (31) are respectively provided with valve (11)；
The two stage pressure regulator includes the third regulator (22) being mounted on the first surge pipe (2) and is adjusted mounted on second
The 4th regulator (32) in pressure pipe (3)；
First regulator (21), the second regulator (31), third regulator (22) and the 4th regulator (32)
Inlet end and outlet side be respectively provided with valve (11)；
First regulator (21), the second regulator (31), third regulator (22) and the 4th regulator (32)
The safety cut-off valve (213) for including the multi-way valve for safe diffusion system pressure and system overvoltage being protected.
4. a kind of natural gas according to claim 3 is depressured transport system, it is characterized in that：
First filter (23) and third filter (24), the first filter are installed on first surge pipe (2)
(23) it is in charge of between (14) positioned at the first regulator (21) and first, the third filter (24) is located at third regulator
(22) and second is in charge of (15）Between；
Second filter (33) and the 4th filter (34), second filter are installed on second surge pipe (3)
(33) it is in charge of between (14) positioned at the second regulator (31) and first, the 4th filter (34) is located at the 4th regulator
(32) and second is in charge of (15）Between.
5. a kind of natural gas according to claim 1 is depressured transport system, it is characterized in that：On first air supply pipe (41)
It is connected with odorization machine.
6. a kind of natural gas according to claim 5 is depressured transport system, it is characterized in that：
The inlet end of the third air supply pipe (43) is connected with the 4th and is in charge of (17）, the 4th is in charge of (17）It is connected with the first branch pipe
(44) it is connected in parallel with the second branch pipe (45), first branch pipe (44) and the second branch pipe (45)；
First branch pipe (44) and the second branch pipe (45) inlet end and second are in charge of (15）Be connected, first branch pipe (44) and
Valve (11) is mounted on second branch pipe (45)；
First branch pipe (44) is connected with odorization machine.
7. a kind of natural gas according to claim 4 is depressured transport system, it is characterized in that：
It is connected with the 5th between first surge pipe (2) and the second surge pipe (3) and is in charge of (18）；
Described 5th is in charge of (18）One end is connected between first filter (23) and the first regulator (21), described 5th point
Pipe (18）The other end is connected between the second filter (33) and the second regulator (31)；
The inlet end and outlet side of the first filter (23) and the second filter (33) are connected separately with valve (11).
8. a kind of natural gas according to any one of claims 1 to 7 is depressured transport system, it is characterized in that：The pressure regulator valve
(212) heater to the natural gas preheating for entering pressure regulator valve (212) is installed at air inlet.
9. a kind of natural gas according to claim 6 is depressured transport system, it is characterized in that：
First quantity of fuel indicator (25), the first quantity of fuel indicator are installed on first surge pipe (2)
(25) it is in charge of (15 positioned at second）Between third regulator (22)；
Second quantity of fuel indicator (25), the second quantity of fuel indicator are installed on second surge pipe (3)
(25) it is in charge of (15 positioned at second）And the 4th between regulator (32)；
Third quantity of fuel indicator (25), the third quantity of fuel indicator (25) are installed on first branch pipe (44)
It is in charge of (17 positioned at the 5th filter and the 4th）Between.
10. a kind of natural gas according to claim 1 is depressured transport system, it is characterized in that：
Pressure sensor (12) and temperature sensor (13) are installed on the air inlet pipe (1)；
Pressure sensor (12) and temperature sensor (13) are installed on second air supply pipe (42) and third air supply pipe (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108960.3U CN207865038U (en) | 2018-01-22 | 2018-01-22 | A kind of natural gas decompression transport system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108960.3U CN207865038U (en) | 2018-01-22 | 2018-01-22 | A kind of natural gas decompression transport system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207865038U true CN207865038U (en) | 2018-09-14 |
Family
ID=63462920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820108960.3U Expired - Fee Related CN207865038U (en) | 2018-01-22 | 2018-01-22 | A kind of natural gas decompression transport system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207865038U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649238A (en) * | 2020-06-01 | 2020-09-11 | 丁武辉 | A multistage pressure reduction means for shale gas exploitation |
| CN116447518A (en) * | 2023-04-03 | 2023-07-18 | 广东港能新能源科技有限公司 | Natural gas conveying pipeline pressure regulating device |
-
2018
- 2018-01-22 CN CN201820108960.3U patent/CN207865038U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649238A (en) * | 2020-06-01 | 2020-09-11 | 丁武辉 | A multistage pressure reduction means for shale gas exploitation |
| CN111649238B (en) * | 2020-06-01 | 2022-02-11 | 中国石油天然气股份有限公司大港油田分公司 | A multistage pressure reduction means for shale gas exploitation |
| CN116447518A (en) * | 2023-04-03 | 2023-07-18 | 广东港能新能源科技有限公司 | Natural gas conveying pipeline pressure regulating device |
| CN116447518B (en) * | 2023-04-03 | 2023-11-10 | 广东港能新能源科技有限公司 | Natural gas conveying pipeline pressure regulating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230018992A1 (en) | Integrated fuel gas heater for mobile fuel conditioning equipment | |
| CN207865034U (en) | A kind of gas pressure regulating system | |
| CN217382542U (en) | Automatic purging and replacing system for hydrogen filling | |
| CN207865038U (en) | A kind of natural gas decompression transport system | |
| CN111578125B (en) | Hydrogen supply system | |
| CN106761622B (en) | Air foam flooding oil production well site device and process thereof | |
| CN113982758B (en) | Gas supply system, gas supply method, and equipment equipped with turbine engine | |
| CN213064046U (en) | System for improving reliability of centrifugal compressor unit | |
| CN203836598U (en) | Safety hydrogen supply device | |
| CN102380824A (en) | Air source device | |
| CN100569634C (en) | Composite membrane separation nitrogen production system and membrane separation nitrogen production method for drilling technology | |
| CN201354724Y (en) | Compressed air supply system of air compressor house | |
| CN106870945B (en) | Natural gas pressure regulating skid-mounted device with multistage safety protection function | |
| CN201944547U (en) | System for compressed natural gas supply station | |
| CN215112046U (en) | Natural gas recovery regulation and control device suitable for urban natural gas pipe network | |
| CN108571617A (en) | Steam valve open and close control system and method, tobacco processing equipment | |
| CN220669179U (en) | Gas pipeline integration and compressor skid-mounted | |
| CN105862984B (en) | A kind of stabilized voltage device and its pressure-stabilizing water supply method | |
| CN210859138U (en) | Air compression station system | |
| CN209196536U (en) | A kind of vehicle-mounted hydrogen-feeding system | |
| CN214890512U (en) | Remote cut-off system of gas pressure regulating equipment and gas pressure regulating cabinet | |
| CN217736934U (en) | Automatic interlocking control system for air of emergency security instrument | |
| CN102155620B (en) | System of compressed natural gas supply station and pressure regulation and gas supply method of system | |
| CN212272135U (en) | Wellhead gas recovery device and wellhead gas recovery system | |
| CN102654242A (en) | Natural gas pressure regulating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20210122 |