CN204007806U - Mechanical meters flow verification system - Google Patents
Mechanical meters flow verification system Download PDFInfo
- Publication number
- CN204007806U CN204007806U CN201420445305.9U CN201420445305U CN204007806U CN 204007806 U CN204007806 U CN 204007806U CN 201420445305 U CN201420445305 U CN 201420445305U CN 204007806 U CN204007806 U CN 204007806U
- Authority
- CN
- China
- Prior art keywords
- flow
- channel
- image pickup
- control unit
- wheel speed
- 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
- 238000012795 verification Methods 0.000 title claims abstract description 12
- 230000004907 flux Effects 0.000 claims abstract description 35
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 230000009183 running Effects 0.000 claims abstract description 10
- 230000006698 induction Effects 0.000 claims abstract description 4
- 239000013307 optical fiber Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 16
- 239000007789 gas Substances 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The mechanical meters flow verification system that the utility model provides, comprise measured flux meter check-out console, gas source and flow amount regulates pipeline and automatically controlled group, gas source and flow amount wherein regulates on pipeline and is connected with precision voltage regulator, flow control valve and flow sensing portion, the automatically controlled group of acquisition channel being connected with central control unit by central control unit, control channel and value and curve map display channel form, acquisition channel wherein comprises the flow collection passage that gathers flow induction part, gather the crushing acquisition channel of differential pressure pickup, gather the wheel speed acquisition channel of wheel speed test section.The technical program can effectively be found out the link that respectively turns round that measured flux meter inside exists transmission resistance may affect flowmeter running so that the influence degree to flow metering.
Description
Technical field
The utility model relates to gas meter flow check device, in particular mechanical gas meter flow check device.
Background technology
Machinery gas meter, mainly include Scroll-type flowmeter and waist wheel type gas meter, they operate steadily because having, accuracy is high, reproducible, be easy to the technological merits such as installation and maintenance, safe and reliable, long service life, become the widely used measurement instrument of combustion gas Trade Measures and transmission of quantity value, be widely used in the metering of the industry such as oil, chemical industry, electric power, boiler or gas.
At present, existing flowmeter performance pick-up unit is commonly calibrating and measuring device, for detection of, weigh the accuracy of flowmeter flow metering.In prior art, lack matching relationship between reaction internal operations metering unit, sensing equipment to the behavior in service of the states such as the design of processing technology and actual processing level and operation process control, therefore, the problem of in most of structures and behavior in service aspect is difficult to be found, only know the performance of problem, be difficult to know the concrete technical reason having problems, as, in flowmeter product structure, transmission resistance distributes very complicated, cannot find out flowmeter inside respectively coordinates the transmission resistance of link existence to the coverage of flow measurement and degree, hinder product and repaiied kind work, it cannot be more technological improvement, feasible design direction is determined in the enforcement of upgrading.In addition, for low discharge type product, because vane rotor rotating speed is very fast, under its rotator inertia drives, the existence of the transmission resistance that some is little is just easy to be covered, just there will be rotary test performance close, even qualified, but actual low discharge characteristic differ the underproof product of the more large and small flow error of indication.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of flowmeter inside link that respectively turns round of can surveying to have the mechanical meters flow verification system of transmission resistance to metering effect and scope.The mechanical meters flow verification systems technology scheme that the utility model provides, its main technical content is: a kind of mechanical meters flow verification system, comprise measured flux meter check-out console, gas source and flow amount regulates pipeline and automatically controlled group, measured flux meter location is arranged on check-out console, measured flux meter input port end regulates pipeline to be connected with gas source and flow amount, be communicated with position and be provided with differential pressure pickup, impeller place is provided with impeller image pickup part and wheel speed test section, the running of character wheel image pickup part picked-up character wheel, gas source and flow amount regulates on pipeline and is connected with precision voltage regulator, flow control valve and flow sensing portion, the automatically controlled group of acquisition channel being connected with central control unit by central control unit, control channel and value and curve map display channel form, acquisition channel wherein comprises the flow collection passage that gathers flow induction part, gather the crushing acquisition channel of differential pressure pickup, gather the wheel speed acquisition channel of wheel speed test section, the video acquisition passage of input impeller image pickup part and character wheel image pickup part, control channel includes electrically-controlled valve control channel and Flux Valve Control passage.
By the disclosed mechanical meters flow verification of the utility model system, the link that respectively turns round that measured flux meter inside exists transmission resistance can be effectively found out and flowmeter running may be affected so that the influence degree to flow metering, assist to revise whether orientation, influence degree size and the impact that operating personnel and technician's problem identificatioin produce is continuation, for the correction operation of product and feasible technological improvement, renewal provide clear and definite direction.
Accompanying drawing explanation
Fig. 1 is the structural representation on measured flux meter check-out console of the present utility model and gas source and flow amount adjustable pipe road.
Fig. 2 is the circuit structure block diagram of automatically controlled group.
Fig. 3 to Fig. 6 is respectively because of the different different time speed curves figure that produce of transmission resistance presence bit.
Embodiment
The disclosed mechanical meters flow verification of the utility model system, as depicted in figs. 1 and 2, the basic composition of native system comprises that measured flux meter check-out console, gas source and flow amount regulate pipeline and automatically controlled group.The technical program does not limit the concrete formation of measured flux meter check-out console, below only for the clear object of understanding the technical program, this concrete check-out console is that example illustrates technology contents.The advantage of this measured flux meter check-out console is that the flowmeter location that can be applicable to different bores and large ting model arranges, it has corresponding height adjustment mechanism, infeed stroke regulates and is fixed mechanism, by the 8 sealing pressings of the sealing pressure head on the flow interface of measured flux meter 10 input ports and check-out console, make the impeller cavity of measured flux meter 10 regulate pipeline to be connected with gas source and flow amount, on check-out console, accurately locate.On sealing pressure head 8, be provided with differential pressure pickup 9.Behind measured flux meter 10 location, the running video of the character wheel portion 12 of character wheel image pickup part 11 picked-up measured flux meters, impeller image pickup part 14 video capture scopes are impeller 13, by being arranged on infeed stroke adjusting, being fixed in mechanism 16, to impeller 13 spies, stretching and be provided with wheel speed test section, described wheel speed test section can have the multiple mode of choosing, and in selecting in the present embodiment is the infrared optical fiber sensor 18 without impact on impeller 13 runnings.
It is source of the gas to be delivered to the airflow connection pipeline of measured flux meter that described gas source and flow amount regulates pipeline, as shown in Figure 1, is connected with pipe valve 15, one-level pressure regulation filtrator 1, precision voltage regulator 2, tensimeter 3, flow control valve 4 and flow sensing portion 5 on this pipeline.In the present embodiment structure, be also provided with the supply air line that a road is provided with blower fan 6, two pipelines are also connected to T-valve 7, by T-valve 7, select to be connected to check-out console flow interface.Supply air line is the empty break-in driving gas circuit of running of measured flux meter, and it is the adjusting gas circuit of check measured flux meter internal mechanism operating condition and initial-flow that gas source and flow amount regulates pipeline.
The described core of automatically controlled group is central control unit, and each acquisition channel, control channel and display channel are connected with central control unit, and this central control unit is selected the convenient Programmable Logic Controller of controlling programming.Described acquisition channel comprises: gather the flow collection passage from flow induction part 5, gather the crushing acquisition channel of owner pressure difference sensor 9, collection is from the wheel speed acquisition channel of wheel speed test section, in addition, character wheel image pickup part 11 is connected with impeller image pickup part 14 as PC video acquisition passage, on PC display, show in real time running video pictures, be convenient to testing staff and monitor observation; Central control unit is after obtaining the Information Monitorings such as wheel speed, pressure reduction, flow, through data processing and image, process, especially the flow value obtaining, time crushing curve map, time speed curves figure etc., via PC/PPI cable, send on PC display, show in real time plot information, be that PC is still connected with central control unit through PC/PPI cable, become the display channel of value, curve map and monitoring video.Described control channel comprises electrically-controlled valve control channel and Flux Valve Control passage, and electrically-controlled valve control channel mainly comprises check-out console frock clamp control channel port, also comprises T-valve control channel port; Flux Valve Control passage comprises that flow simulation amount regulates access port and flow point momentum to regulate access port, by flow simulation amount, regulate port channel output quantity to connect coarse adjustment flow control valve 4, then by flow control valve enforcement crawl micrometeor is regulated and being controlled in the mouth passage of some momentum adjustable side.
The technical program has proposed the detection to measured flux meter initial-flow.So-called " initial-flow " is to drive measured flux meter to overcome the minimum air flow flow of internal drag continuous operation, under this minimum flow, impeller or rotor can be passed to position, character wheel portion end character wheel always, and guarantee that position, end character wheel energy continuous rotation more than one week, is the flow value that measured flux meter overcomes transmission resistance continuous operation.This flow value is less, and instruction card internal resistance is less, sensitivity is higher, low discharge performance is better, flowmeter that accordingly can design discharge linear working range is wide, range is large, and " initial-flow " is an important technology index of investigating flowmeter performance.Central control unit is via the coarse adjustment of Flux Valve Control passage and crawl fine tuning adjust flux variable valve 4, and monitoring character wheel portion and impeller video show, the final flow value that obtains meeting initial-flow definition that regulates.
Set up a given flow and drive measured flux meter, each link that turns round overcomes one by one internal drag and transmits running to character wheel portion 12, central control unit is through the signal of pressure reduction acquisition channel and the acquisition of wheel speed acquisition channel, the time crushing curve map that treated acquisition is corresponding and time speed curves figure, along with the transmission link variation of transmission and the position of engagement backward step by step, also there is corresponding variation in transmission resistance, time, speed curves figure produced different fluctuating pictures, according to given flow value, impeller/rotor is to the transmission time of count section, the speed curves fluctuation situation that at a time, section occurs, can analyze, the concentrated transmission link place of resistance in judgement measured flux meter, provide basis for estimation targetedly, can implement accordingly to improve design, as improve parts precision, improve assembly technology etc., improve precision and the quality of flowmeter.How the four parts of concrete time speed curves figure of only take below judge measured flux running problem as example illustrates: shown in Fig. 3 is the curve map of the firm entry into service of flowmeter, by its fluctuation of speed gap periods, short and uniform phenomenon is seen, illustrate that internal drag is bordering on initial end gear drive link, technician just can be locked in movement position analyzing emphasis; Shown in Fig. 4 is the curve map that measured flux meter has moved a period of time, by it, continue for some time from even fluctuation and occurred suddenly the curve waveform changing by a relatively large margin, sudden change resistance is present in later transmission link place, middle part, and technician can be locked in character wheel portion link analyzing emphasis; Curve, should be to eliminate gradually the burr of transmission gear after one section of run-in, thereby fluctuating range is reduced gradually as shown in Figure 5; Curve as shown in Figure 6, curve fluctuation is mild and the cycle is long, and the internal drag of known this measured flux meter is than little many of the measured flux meter shown in Fig. 3.
Claims (4)
1. a mechanical meters flow verification system, comprise measured flux meter check-out console, gas source and flow amount regulates pipeline and automatically controlled group, measured flux meter location is arranged on check-out console, measured flux meter input port end regulates pipeline to be connected with gas source and flow amount, it is characterized in that being communicated with position and be provided with differential pressure pickup, impeller place is provided with impeller image pickup part and wheel speed test section, the running of character wheel image pickup part picked-up character wheel, gas source and flow amount regulates on pipeline and is connected with precision voltage regulator, flow control valve and flow sensing portion, the automatically controlled group of acquisition channel being connected with central control unit by central control unit, control channel and value and curve map display channel form, acquisition channel wherein comprises the flow collection passage that gathers flow induction part, gather the crushing acquisition channel of differential pressure pickup, gather the wheel speed acquisition channel of wheel speed test section, the video acquisition passage of input impeller image pickup part and character wheel image pickup part, control channel includes electrically-controlled valve control channel and Flux Valve Control passage.
2. mechanical meters flow verification system according to claim 1, it is characterized in that being provided with PC in automatically controlled group, PC is connected with central control unit through PC/PPI cable, and character wheel image pickup part (11) is connected as PC video acquisition passage with impeller image pickup part (14).
3. mechanical meters flow verification system according to claim 2, is characterized in that PC is the curve map display channel being connected with central control unit through PC/PPI cable.
4. according to the mechanical meters flow verification system described in claim 1,2 or 3, it is characterized in that wheel speed test section is infrared optical fiber sensor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445305.9U CN204007806U (en) | 2014-08-07 | 2014-08-07 | Mechanical meters flow verification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420445305.9U CN204007806U (en) | 2014-08-07 | 2014-08-07 | Mechanical meters flow verification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007806U true CN204007806U (en) | 2014-12-10 |
Family
ID=52047788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420445305.9U Expired - Fee Related CN204007806U (en) | 2014-08-07 | 2014-08-07 | Mechanical meters flow verification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679738A (en) * | 2016-10-16 | 2017-05-17 | 浙江苍南仪表集团有限公司 | Low-power-consumption gas flow measurement circuit with self-diagnosis function |
| CN109163787A (en) * | 2018-10-09 | 2019-01-08 | 汉威科技集团股份有限公司 | A kind of water meter character wheel reading detector and measuring method |
-
2014
- 2014-08-07 CN CN201420445305.9U patent/CN204007806U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679738A (en) * | 2016-10-16 | 2017-05-17 | 浙江苍南仪表集团有限公司 | Low-power-consumption gas flow measurement circuit with self-diagnosis function |
| CN106679738B (en) * | 2016-10-16 | 2019-08-23 | 浙江苍南仪表集团股份有限公司 | Low-power consumption gas flow measurement circuit with self-diagnostic function |
| CN109163787A (en) * | 2018-10-09 | 2019-01-08 | 汉威科技集团股份有限公司 | A kind of water meter character wheel reading detector and measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6960437B2 (en) | Non-intrusive sensor system | |
| CN203147014U (en) | Intelligent valve | |
| CN105293078B (en) | Cigarette machine wire-feeding pipe wind speed balance method and unit control apparatus | |
| CN101761780B (en) | Gas pipeline leakage detecting and positioning device and method thereof | |
| CN1371494A (en) | Regulator diagnostics system and method | |
| KR101540247B1 (en) | Equipment for testing water meters automatic method | |
| CN105571653B (en) | Coal pulverizer air measuring method and system | |
| CN101484856A (en) | Computerized evaluation of process control device signature graphs | |
| CN102889906A (en) | Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof | |
| US10364816B2 (en) | Remote pump managing device | |
| CN209342748U (en) | First air wind speed measuring device | |
| CN102748587A (en) | Device and method for monitoring pipeline fluid | |
| CN105201794B (en) | A kind of barrier film protection system | |
| CN204007806U (en) | Mechanical meters flow verification system | |
| CN102494743A (en) | Small-flow automatic detection device and detection method for water meters | |
| CN104713730B (en) | Method for determining degeneration rate of aircraft engine according to vibration signal | |
| CN203799274U (en) | Air flow regulating device based on PM10 online monitoring | |
| CN102967348A (en) | Full-flow-point rapid detection device for water meter | |
| CN107304716A (en) | A kind of turbine engine failure monitoring method and device | |
| CN104344862B (en) | The detection method of FCM10A type fuel consumption meters | |
| CN108490870A (en) | A kind of method of Intelligent fire-fighting test run platform and its implementing monitoring | |
| CN104216346A (en) | Electric automatic control system for full-automatic supersonic nozzle high-flow standard devices | |
| CN102937527A (en) | Calibrator used for detecting measurement accuracy of fuel consumption of engine pedestal | |
| CN109765940A (en) | An automatic flow control system for hydraulic model test | |
| CN102680059A (en) | Method for reducing small-flow calibration error of test bed flow meter of hydraulic machine model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |