CN104535142A - Nozzle block type gas flowmeter calibrating device - Google Patents
Nozzle block type gas flowmeter calibrating device Download PDFInfo
- Publication number
- CN104535142A CN104535142A CN201510000286.8A CN201510000286A CN104535142A CN 104535142 A CN104535142 A CN 104535142A CN 201510000286 A CN201510000286 A CN 201510000286A CN 104535142 A CN104535142 A CN 104535142A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- header
- gas
- nozzle device
- spray nozzle
- 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.)
- Pending
Links
- 239000007921 spray Substances 0.000 claims description 37
- 238000009434 installation Methods 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 38
- 238000012423 maintenance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a gas flowmeter calibration device, in particular to a nozzle block type gas flowmeter calibrating device. The nozzle block type gas flowmeter calibrating device comprises a main header, a gas outlet segment of the main header is connected with a plurality of nozzle devices capable of generating different flow rates at intervals, the nozzle devices are connected to a gas outlet header through gas outlet pipelines, and the gas outlet header is connected to a power pump; a gas inlet segment of the main header is connected with a plurality of different-caliber inlet pipelines at intervals, and meter clamping platforms used for installing different-size gas flowmeters are arranged in the middles of the different-caliber inlet pipelines. The nozzle devices are divided into a plurality of sets, each set of nozzle devices are assembled in one nozzle box body, each nozzle box body is installed on a base track at the bottom of the nozzle box body, and each nozzle box body can slide along the corresponding base track. The gas flowmeter calibration device is wide in detection range and high in detection precision, and the nozzle boxes are convenient to install, detach and maintain.
Description
Technical field
The present invention relates to a kind of gas meter calibrating installation, specifically a kind of nozzle sets formula gas meter calibrating installation.
Background technology
Along with gas enters high-speed development period, originally more heavy caliber gas meters are applied on natural-gas transfer pipeline, and the accuracy of detection for heavy caliber gas meter requires very high.
Gas meter needs to be detected by calibrating installation to determine its degree of accuracy, and the gas meter after having produced needs to demarcate, and can sell, and gas meter needs periodic verification and calibration after up to standard.Calibrating installation can produce the actual flow of standard, as standard value.But the sensing range of existing calibrating installation is smaller, accuracy of detection is not high.
So that its accuracy is higher, reliable and stable etc., feature is often selected as standard scale to sonic nozzle formula gas meter, during detection, the numerical value of the gas meter display to be detected be connected in series with it compares, and judges that whether gas meter is qualified and determine error size.But the volume of the nozzle casing in sonic nozzle formula gas meter is large, weight large, causes the installation of nozzle casing, dismounting, maintenance all very inconvenient.
Summary of the invention
Technical matters to be solved by this invention is, provides that a kind of sensing range is wide, accuracy of detection is high, and nozzle casing is installed, dismounting, nozzle sets formula gas meter calibrating installation easy to maintenance.
Nozzle sets formula gas meter calibrating installation of the present invention, it comprises a total header of closed at both ends, the gas section that enters of described total header is connected with inlet duct, the porch of described inlet duct front end is provided with exhaust box, and the middle part of described inlet duct is provided with the tong-test ammeter platform for installing gas meter to be detected; The air outlet section interval of described total header is connected with multiple spray nozzle device that can produce different flow, and each spray nozzle device is connected to respectively by outlet pipe header of giving vent to anger, described in header of giving vent to anger be connected to power pump;
Described total header enter the inlet duct that gas spacer segment is connected with many different bores, the middle part of the inlet duct of described many different bores is respectively arranged with the tong-test ammeter platform for installing different size gas meter.
Multiple spray nozzle device is divided into organizes spray nozzle device more, and often organize spray nozzle device and be assembled in a nozzle casing, each nozzle casing is arranged on respectively and is positioned on a base track of nozzle bottom half, and nozzle box body can slide along base track.
The front end face of described nozzle casing is provided with air intake opening, and described air intake opening is connected to draft tube; The end face of described nozzle casing is provided with gas outlet, and described gas outlet is connected to escape pipe; Be provided with cylinder, operation valve and a nozzle in described nozzle box intracoelomic cavity, described cylinder is opened by operation valve Control Nozzle, is closed.
The air intake opening of described nozzle casing is connected with draft tube by flange, and the gas outlet of described nozzle casing is connected with escape pipe by flange.
Often organize spray nozzle device and be divided into small nozzle device, medium-sized spray nozzle device and larger nozzles device according to the size of measurement range, described small nozzle device and medium-sized spray nozzle device are also connected to a diameter auxiliary the give vent to anger header less than header of giving vent to anger, and described auxiliary header of giving vent to anger is connected to the little auxiliary power pump of power ratio power pump; Described small nozzle device, medium-sized spray nozzle device and the valve being provided with between header and controlling break-make of giving vent to anger.
Described total header is U-shaped structure, and on the vertical gas feeding pipe on front side of described total header, interval is connected with the gas feeding pipe of many different bores, and on the vertical gas exhaust duct on rear side of described total header, interval is connected with multiple spray nozzle device that can produce different flow.
Each root entry pipeline is connected to total header respectively by corrugated tube.
The invention has the advantages that:
1. be provided with multiple tong-test ammeter platform for installing different size gas meter, add the scope of application of device, be provided with multiple spray nozzle device that can produce different flow, required calibrating flow point is selected by the combination of spray nozzle device, sensing range is large, also can reach higher measuring accuracy simultaneously.
2. being arranged on by nozzle casing is positioned on a base track of nozzle bottom half, nozzle box body can slide along base track, when installation, dismounting, maintenance nozzle casing, direct pull nozzle casing is to suitable position, do not need manpower to lift the large nozzle casing of this weight, make the installation of nozzle casing, dismounting, maintenance more convenient, laborsaving.The exhausr port of described nozzle casing is arranged on top, nozzle casing can not be affected and slide on base track.
3. small nozzle device described in and medium-sized spray nozzle device are also connected to a diameter auxiliary the give vent to anger header less than header of giving vent to anger, and described auxiliary header of giving vent to anger is connected to the little auxiliary power pump of power ratio power pump.When using small nozzle device and medium-sized spray nozzle device, using high-power power pump to compare waste, lower-powered auxiliary power pump can be used, saved the energy.
4. described in, total header is U-shaped structure, compares and saves space.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is the mounting structure schematic diagram of nozzle casing of the present invention.
Embodiment
below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Figure 1: a kind of nozzle sets formula gas meter calibrating installation, it comprises a total header 1 of closed at both ends, described total header 1 is U-shaped structure, on vertical gas feeding pipe on front side of described total header 1, interval is connected with the gas feeding pipe 2 of many different bores, and each root entry pipeline 2 is connected to total header 1 respectively by corrugated tube 4.The porch of described inlet duct 2 front end is provided with exhaust box 7, described total header 1 enter the inlet duct 2 that gas spacer segment is connected with many different bores, the middle part of the inlet duct 2 of described many different bores is respectively arranged with the tong-test ammeter platform 3 for installing different size gas meter.
On vertical gas exhaust duct on rear side of described total header 1, interval is connected with multiple spray nozzle device that can produce different flow.Each spray nozzle device is connected to respectively by outlet pipe header 6 of giving vent to anger, described in header 6 of giving vent to anger be connected to power pump; Multiple spray nozzle device is divided into organizes spray nozzle device more, and three spray nozzle devices are one group, often organizes spray nozzle device and is assembled in a nozzle casing 8.
As shown in Figure 2: each nozzle casing 8 is arranged on a base track 9 being positioned at bottom nozzle casing 8 respectively, and nozzle casing 8 can slide along base track 9.The front end face of described nozzle casing 8 is provided with air intake opening, and described air intake opening is connected to draft tube 15; The end face of described nozzle casing 8 is provided with gas outlet, and described gas outlet is connected to escape pipe 16; Be provided with a cylinder 17, operation valve 18 and nozzle 5 in described nozzle casing 8 inner chamber, described cylinder 17 is opened by operation valve 18 Control Nozzle 19, is closed.The air intake opening of described nozzle casing 8 is connected with draft tube 15 by flange, and the gas outlet of described nozzle casing 8 is connected with escape pipe 16 by flange.
Often organize spray nozzle device and be divided into small nozzle device 12, medium-sized spray nozzle device 13 and larger nozzles device 14 according to the size of measurement range, described small nozzle device 12 and medium-sized spray nozzle device 13 are also connected to a diameter auxiliary the give vent to anger header 10 less than header 6 of giving vent to anger, and described auxiliary header 10 of giving vent to anger is connected to the little auxiliary power pump of power ratio power pump; Described small nozzle device 12, medium-sized spray nozzle device 13 and give vent to anger between header 6 and be provided with operation valve 11.When only using small nozzle device 12 or medium-sized spray nozzle device 13, can shutoff valve 11, use auxiliary power pump.
During device work, gas meter to be measured is installed to the corresponding tong-test ammeter platform 3 of size.
When using auxiliary power pump, under the effect of auxiliary power pump, air flows through exhaust box 7, inlet duct 2, gas meter to be measured, total header 1, small nozzle device 12 or medium-sized spray nozzle device 13, auxiliary header 10 of giving vent to anger, and discharges finally by auxiliary power pump.
When using power pump, under the effect of power pump, air flows through exhaust box 7, inlet duct 2, gas meter to be measured, total header 1, spray nozzle device, header 6 of giving vent to anger, and discharges finally by power pump.
This device can install 29 sonic nozzles, and this apparatus structure is reasonable, and detection efficiency is high, and calibrating scope is 1-20000m
3/ h, accuracy reaches ± and 0.3%.
Claims (6)
1. a nozzle sets formula gas meter calibrating installation, it comprises a total header of closed at both ends (1), the gas section that enters of described total header (1) is connected with inlet duct (2), the porch of described inlet duct (2) front end is provided with exhaust box (7), and the middle part of described inlet duct (2) is provided with the tong-test ammeter platform (3) for installing gas meter to be detected; The air outlet section interval of described total header (1) is connected with multiple spray nozzle device that can produce different flow, and each spray nozzle device is connected to header of giving vent to anger (6) respectively by outlet pipe, described in header (6) of giving vent to anger be connected to power pump;
It is characterized in that: described total header (1) enter the inlet duct (2) that gas spacer segment is connected with many different bores, the middle part of the inlet duct (2) of described many different bores is respectively arranged with the tong-test ammeter platform (3) for installing different size gas meter; Multiple spray nozzle device is divided into organizes spray nozzle device more, often organizing spray nozzle device is assembled in a nozzle casing (8), each nozzle casing (8) be arranged on respectively be positioned at nozzle casing (8) bottom a base track (9) on, nozzle casing (8) can slide along base track (9).
2. nozzle sets formula gas meter calibrating installation according to claim 1, is characterized in that: the front end face of described nozzle casing (8) is provided with air intake opening, and described air intake opening is connected to draft tube (15); The end face of described nozzle casing (8) is provided with gas outlet, and described gas outlet is connected to escape pipe (16); Be provided with a cylinder (17), operation valve (18) and nozzle (5) in described nozzle casing (8) inner chamber, described cylinder (17) is opened by operation valve (18) Control Nozzle (19), is closed.
3. nozzle sets formula gas meter calibrating installation according to claim 2, it is characterized in that: the air intake opening of described nozzle casing (8) is connected with draft tube (15) by flange, the gas outlet of described nozzle casing (8) is connected with escape pipe (16) by flange.
4. the nozzle sets formula gas meter calibrating installation according to claim 1-3, it is characterized in that: often organize spray nozzle device and be divided into small nozzle device (12), medium-sized spray nozzle device (13) and larger nozzles device (14) according to the size of measurement range, described small nozzle device (12) and medium-sized spray nozzle device (13) are also connected to a diameter ratio and give vent to anger the little auxiliary header of giving vent to anger (10) of header (6), and described auxiliary header (10) of giving vent to anger is connected to the little auxiliary power pump of power ratio power pump; Described small nozzle device (12), between medium-sized spray nozzle device (13) and header of giving vent to anger (6), be provided with the valve (11) controlling break-make.
5. nozzle sets formula gas meter calibrating installation according to claim 1, it is characterized in that: described total header (1) is U-shaped structure, on the vertical gas feeding pipe of described total header (1) front side, interval is connected with the gas feeding pipe (2) of many different bores, and on the vertical gas exhaust duct of described total header (1) rear side, interval is connected with multiple spray nozzle device that can produce different flow.
6. nozzle sets formula gas meter calibrating installation according to claim 1, is characterized in that: each root entry pipeline (2) is connected to total header (1) respectively by corrugated tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000286.8A CN104535142A (en) | 2015-01-04 | 2015-01-04 | Nozzle block type gas flowmeter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000286.8A CN104535142A (en) | 2015-01-04 | 2015-01-04 | Nozzle block type gas flowmeter calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104535142A true CN104535142A (en) | 2015-04-22 |
Family
ID=52850717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000286.8A Pending CN104535142A (en) | 2015-01-04 | 2015-01-04 | Nozzle block type gas flowmeter calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104535142A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251405A (en) * | 2008-04-08 | 2008-08-27 | 朱家顺 | Apparatus for calibrating gas instrument |
| CN202501910U (en) * | 2012-03-30 | 2012-10-24 | 杭州市质量技术监督检测院 | Calibrating device for heavy caliber gas flow |
| CN203758473U (en) * | 2014-01-03 | 2014-08-06 | 中国航空工业集团公司沈阳发动机设计研究所 | Apparatus for detecting jet cone angle of tracer gas nozzle |
| CN203811245U (en) * | 2013-11-05 | 2014-09-03 | 肇庆新奥燃气有限公司 | Nozzle type flow online detection system |
| CN104215305A (en) * | 2013-06-04 | 2014-12-17 | 宁夏嘉翔自控技术有限公司 | Full-automatic supersonic nozzle high flow standard device |
| CN204388980U (en) * | 2015-01-04 | 2015-06-10 | 镇江市计量检定测试中心 | Nozzle sets formula gas meter calibrating installation |
-
2015
- 2015-01-04 CN CN201510000286.8A patent/CN104535142A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251405A (en) * | 2008-04-08 | 2008-08-27 | 朱家顺 | Apparatus for calibrating gas instrument |
| CN202501910U (en) * | 2012-03-30 | 2012-10-24 | 杭州市质量技术监督检测院 | Calibrating device for heavy caliber gas flow |
| CN104215305A (en) * | 2013-06-04 | 2014-12-17 | 宁夏嘉翔自控技术有限公司 | Full-automatic supersonic nozzle high flow standard device |
| CN203811245U (en) * | 2013-11-05 | 2014-09-03 | 肇庆新奥燃气有限公司 | Nozzle type flow online detection system |
| CN203758473U (en) * | 2014-01-03 | 2014-08-06 | 中国航空工业集团公司沈阳发动机设计研究所 | Apparatus for detecting jet cone angle of tracer gas nozzle |
| CN204388980U (en) * | 2015-01-04 | 2015-06-10 | 镇江市计量检定测试中心 | Nozzle sets formula gas meter calibrating installation |
Non-Patent Citations (2)
| Title |
|---|
| 周轶 等: "超大口径音速喷嘴法气体流量标准装置", 《计量技术》 * |
| 周轶 等: "音速喷嘴气体流量标准计量撬装置", 《工业计量》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019000259A1 (en) | Detection device and method for circulating type gas turbine flowmeter | |
| CN103306968B (en) | transformer oil pump test device and test method thereof | |
| CN202075022U (en) | Online real-flow calibrating device for small natural gas flowmeter | |
| CN104501917B (en) | Super large caliber sonic nozzle group formula gas flowmeter calibrating installation | |
| CN107014598A (en) | A kind of air valve air inlet performance testing device and method of testing | |
| CN205300835U (en) | Flow flow resistance coefficient detection device of valve | |
| CN201464488U (en) | A honeycomb air duct flow equalization speed measuring device | |
| CN109696228A (en) | A kind of aerospace automatic calibration unit for gas flowmeters and its calibration method | |
| CN202501910U (en) | Calibrating device for heavy caliber gas flow | |
| CN201188012Y (en) | Laminar flowmeter for measuring instantaneous flow of engine | |
| CN205257986U (en) | Oil ration loading skid -mounted integrated device | |
| CN202433164U (en) | Integrated seal test device for process penetration piece of nuclear power station | |
| CN204388980U (en) | Nozzle sets formula gas meter calibrating installation | |
| CN202928632U (en) | V-shaped inner cone flowmeter | |
| CN209639805U (en) | A kind of aerospace automatic calibration unit for gas flowmeters | |
| CN104535142A (en) | Nozzle block type gas flowmeter calibrating device | |
| CN101435715A (en) | Air-flow meter calibration method based on software analysis technology | |
| CN111896237A (en) | A gas turbine fuel nozzle and blade integrated gas flow detection device | |
| CN107830979B (en) | Visual pilot cobalt target cobalt rod flow induced vibration experimental device | |
| CN207248254U (en) | A kind of apparatus for measuring air quantity | |
| RU169290U1 (en) | The unit for connecting the compressor station to the main gas pipeline, equipped with means for checking the flow meter integrated in the main gas pipeline | |
| CN105222838B (en) | Flowmeter shell and flowmeter | |
| CN203534679U (en) | Correction system of orifice plate flow meter | |
| CN211783763U (en) | Gas flow detector | |
| CN104422602A (en) | Stationary pollution source unpowered constant-speed sampling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |