CN202092840U - Leak detection system of gas flow standard device - Google Patents
Leak detection system of gas flow standard device Download PDFInfo
- Publication number
- CN202092840U CN202092840U CN2011201517642U CN201120151764U CN202092840U CN 202092840 U CN202092840 U CN 202092840U CN 2011201517642 U CN2011201517642 U CN 2011201517642U CN 201120151764 U CN201120151764 U CN 201120151764U CN 202092840 U CN202092840 U CN 202092840U
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- valve
- standard
- gas flow
- detection system
- leak detection
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Abstract
The utility model discloses a leak detection system of a gas flow standard device. The leak detection system of a gas flow standard device comprises a first standard meter pipeline and a second standard meter pipeline, wherein the first standard meter pipeline is composed of a first pressure gauge, a first valve and a first standard flowmeter in series connection, and the second standard meter pipeline is composed of a second pressure gauge, a second valve and a second standard flowmeter in series connection. Each end of the two standard meter pipelines is connected with a gas source device. The other ends of the two standard meter pipelines are respectively connected with the inlet end of a container. The outlet end of the container is connected with a third valve via a to-be-detected flowmeter. The leak detection system of a gas flow standard device is characterized in that the front end of the first pressure gauge is connected with a fourth valve, and the front end of the second pressure gauge is connected with a fifth valve, The beneficial effects of the utility model are that the system enables the accuracy of metering is improved, and helps to solve a problem with the prior art that self-check operation can not be carried out by standard meter pipelines once valves leak.
Description
Technical field
The utility model relates to a kind of gas flow standard device, particularly a kind of gas flow standard device leak detection system.
Background technology
Traditional gas flow standard device, as shown in Figure 1, by first tensimeter 5, first valve 2 and first proving flowmeter 7 are connected into the first standard scale pipeline and by second tensimeter 6, second valve 4 and second proving flowmeter 8 are connected into the second standard scale pipeline, two standard scale pipelines, one end is connected with air machinery 12, the other end of two standard scale pipelines is connected with container 9 entrance points separately, container 9 endpiece are connected with the 3rd valve 11 through detected flowmeter 10, the gas stream that air machinery 12 produces is when the standard scale pipeline, by turn-offing the break-make that first valve 2 and second valve 4 come pilot piping on the pipeline.When second valve 4 turn-offs, first valve 2 is opened, if there is gas leak phenomenon in second valve 4, will occur can bringing error to metering via 4 gas leakage of second valve via the gas of standard scale 7 paths.
Summary of the invention:
The purpose of this utility model provides the gas leakage self check that a kind of gas flow standard device leak detection system is realized the standard scale pipeline, improves the accuracy of metering.
The technical solution of the utility model is, a kind of gas flow standard device leak detection system, it is by first tensimeter, first valve and first proving flowmeter are connected into the first standard scale pipeline and by second tensimeter, second valve and second proving flowmeter are connected into the second standard scale pipeline, two standard scale pipelines, one end is connected with air machinery, the other end of two standard scale pipelines is connected with the container entrance point separately, the container outlet end is connected with the 3rd valve through detected flowmeter, it is characterized in that, be connected to the 4th valve and the 5th valve respectively at first tensimeter and the second manometric front end.
In case the invention has the beneficial effects as follows to have solved in the conventional solution valve gas leakage, the problem that the standard scale pipeline can't self check has improved the accuracy of metering.
Description of drawings
Fig. 1 is traditional gas flow standard device synoptic diagram;
Fig. 2 is a gas flow standard device leak detection system synoptic diagram.
Embodiment
The utility model gas flow standard device leak detection system is to improve to form on traditional gas flow standard device basis, by shown in Figure 2, it is by first tensimeter 5, first valve 2 and first proving flowmeter 7 are connected into the first standard scale pipeline and by second tensimeter 6, second valve 4 and second proving flowmeter 8 are connected into the second standard scale pipeline, two standard scale pipelines, one end is connected with air machinery 12, the other end of two standard scale pipelines is connected with container 9 entrance points separately, container 9 endpiece are connected with the 3rd valve 11 through detected flowmeter 10, be characterized in, be connected to the 4th valve 1 and the 5th valve 3 respectively at the front end of first tensimeter 5 and second tensimeter 6.The gas stream that air machinery 12 produces is through the 4th valve 1, first valve 2, the 5th valve 3 and second valve 4, and first proving flowmeter 7 and second proving flowmeter 8 of flowing through and being connected with valve, enter container 9, flow into detected flowmeter 10 and the 3rd valve 11 again, enter atmosphere at last.When only using first proving flowmeter 7, the 5th valve 3, second valve 4 must be closed fully; When using second proving flowmeter 8, the 4th valve 1, first valve 2 must be closed fully.Whether close fully in order to detect valve, can write down between the 4th valve 1, first valve 2 or the 5th valve 3, second valve 4 between first tensimeter 5 or the indicated value of second tensimeter 6; Force value on the pent valve passage should be stablized constant, represents that promptly this passage has leakage if pressure changes.Utilize the accurately leakage in the sense channel of this method.
Claims (1)
1. gas flow standard device leak detection system, it is by first tensimeter (5), first valve (2) and first proving flowmeter (7) are connected into the first standard scale pipeline and by second tensimeter (6), second valve (4) and second proving flowmeter (8) are connected into the second standard scale pipeline, two standard scale pipelines, one end is connected with air machinery (12), the other end of two standard scale pipelines is connected with container (9) entrance point separately, container (9) endpiece is connected with the 3rd valve (11) through detected flowmeter (10), it is characterized in that, be connected to the 4th valve (1) and the 5th valve (3) respectively at the front end of first tensimeter (5) and second tensimeter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201517642U CN202092840U (en) | 2011-05-13 | 2011-05-13 | Leak detection system of gas flow standard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201517642U CN202092840U (en) | 2011-05-13 | 2011-05-13 | Leak detection system of gas flow standard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092840U true CN202092840U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201517642U Expired - Fee Related CN202092840U (en) | 2011-05-13 | 2011-05-13 | Leak detection system of gas flow standard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202092840U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759435A (en) * | 2012-06-29 | 2012-10-31 | 宜宾天瑞达汽车零部件有限公司 | Pneumatic EGR (Exhaust Gas Recirculation) valve detection device |
| CN103674447A (en) * | 2012-08-31 | 2014-03-26 | 宝山钢铁股份有限公司 | Online valve leakage testing device and method for combustible gas pipeline |
| CN105222865A (en) * | 2015-07-23 | 2016-01-06 | 中国计量学院 | Turbo flow meter on-line monitoring method and device |
| CN106404125A (en) * | 2016-08-31 | 2017-02-15 | 新奥科技发展有限公司 | Detection device for gas flow meter |
-
2011
- 2011-05-13 CN CN2011201517642U patent/CN202092840U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759435A (en) * | 2012-06-29 | 2012-10-31 | 宜宾天瑞达汽车零部件有限公司 | Pneumatic EGR (Exhaust Gas Recirculation) valve detection device |
| CN103674447A (en) * | 2012-08-31 | 2014-03-26 | 宝山钢铁股份有限公司 | Online valve leakage testing device and method for combustible gas pipeline |
| CN105222865A (en) * | 2015-07-23 | 2016-01-06 | 中国计量学院 | Turbo flow meter on-line monitoring method and device |
| CN106404125A (en) * | 2016-08-31 | 2017-02-15 | 新奥科技发展有限公司 | Detection device for gas flow meter |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20190513 |