CN203811371U - Natural gas line bleeding valve on-line testing device - Google Patents
Natural gas line bleeding valve on-line testing device Download PDFInfo
- Publication number
- CN203811371U CN203811371U CN201420185091.6U CN201420185091U CN203811371U CN 203811371 U CN203811371 U CN 203811371U CN 201420185091 U CN201420185091 U CN 201420185091U CN 203811371 U CN203811371 U CN 203811371U
- Authority
- CN
- China
- Prior art keywords
- valve
- arm
- pipe
- communicated
- testing device
- 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 - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 12
- 239000003345 natural gas Substances 0.000 title abstract description 6
- 230000000740 bleeding effect Effects 0.000 title abstract 10
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000009792 diffusion process Methods 0.000 claims description 28
- 239000000428 dust Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 abstract description 26
- 238000011982 device technology Methods 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a natural gas line bleeding valve on-line testing device, and relates to the natural gas line measurement and control device technology field. The testing device comprises a pressure regulator, a bleeding valve and a bleeding pipe. An air inlet control valve and an air outlet control valve are arranged on gas delivery pipes connected with two ends of the pressure regulator. The bleeding valve is arranged on the bleeding pipe communicated with the gas delivery pipe. Detection control valves arranged on the bleeding valve and a first bleeding pipe communicated with the gas delivery pipe. A branch pipe is arranged between the detection control valve and the bleeding valve. A first branch and a second branch are arranged on the branch pipe. An air source control valve is arranged on the first branch pipe. A pressure control valve is arranged on the second branch pipe. Through isolation with a pipe network of a user, the bleeding valve is tested. The potential safety hazards are reduced without affecting normal usage of the user.
Description
Technical field
The utility model relates to natural gas line measure and control device technical field.
Background technology
Rock gas is just widely used as the green clean environment firendly energy of one, particularly along with the raising of living standards of the people and the enhancing of environmental consciousness, rock gas as a kind of cheap, calorific value is high, security performance and the good fuel of environmental performance, is widely used in gas kitchen ranges, water heater, heating and the refrigeration of civilian and business; But rock gas is again a kind of inflammable and explosive dangerous fuel simultaneously, in air, concentration, within the scope of 5%-15%, is met naked light and can be blasted, and the safe handling of therefore guaranteeing rock gas is the key that is related to huge numbers of families, is related to people life property safety.Therefore to rock gas need special messenger regularly the serviceability to whole security system, conveyance conduit carry out that scene checks and test-based examination, with the leakage-preventing major accident that causes.
Diffusion valve is mounted in the flammable explosion hazard gases safety early warning device of one on natural-gas transfer pipeline, in the time that certain temporary transient reason makes the pressure at reference mark exceed setting value, discharge the valve of a certain amount of gas, the safety that is applicable to high pressure, mesolow gas ductwork is diffused.In daily safety check, need the starting pressure of diffusion valve to carry out routine test and debugging, guarantee that diffusion valve can play the effect of safe early warning.At present, when the online diffusion valve of gas delivering pipe is carried out to starting pressure test, the upper user of pipe network will together participate in test, has certain uncertain factor and adjust diffusion valve starting pressure, be easy to the security incident that generation cannot be predicted, have very large potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of NG Pipe Exhaust valve online testing device, by cutting off with user's pipe network, diffusion valve is tested, and is not affecting user's normal use, reduces potential safety hazard.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of NG Pipe Exhaust valve online testing device, comprise pressure regulator, diffusion valve and exhaust stack, on the gas piping that connects pressure regulator two ends, be provided with air intake control valve and leaving air control valve, diffusion valve is located on the exhaust stack being communicated with gas piping, on the first exhaust stack being communicated with gas piping at diffusion valve, be provided with detection operation valve, on the first exhaust stack between this detection operation valve and diffusion valve, be communicated with arm, this arm is provided with the first arm and the second arm, described the first arm is provided with air source control valve, the second arm is provided with pressure control valve.
Described the first arm and the second arm are communicated with arm by three-way connection.
Described the first arm and the second arm are communicated with arm by T-valve.
Free end in the vertical section of the second exhaust stack is provided with dust cap, and the horizontal segment of the second exhaust stack is provided with the blowoff valve being communicated with by three-way connection.
Described blowoff valve is located at the second exhaust stack horizontal segment and vertical section intersection.
The beneficial effect that adopts technique scheme to produce is: the utility model is provided with detection operation valve, in the time that diffusion valve is tested, close detection operation valve, detection system and user's pipe network are cut off, and open air source control valve and supply with tolerance, the opening pressure of diffusion valve to be tested, user's pipe network does not participate in test macro, therefore user's pipe network can not be affected, and greatly reduces potential safety hazard; At the free end of exhaust stack, dust cap is installed simultaneously, and is got rid of in time the sewage in exhaust stack by blowoff valve, avoid blocking pipe, affect the warning function of diffusion valve, guarantee the normal work of diffusion valve, eliminate safe hidden trouble to greatest extent.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of prior art;
In figure: 1, air intake control valve; 2, pressure regulator; 3, detect operation valve; 4, the first exhaust stack; 5, diffusion valve; 6, the second exhaust stack; 7, dust cap; 8, blowoff valve; 9, the first arm; 10, air source control valve; 11, the second arm; 12, pressure control valve; 13, leaving air control valve; 14, gas piping.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
(referring to Fig. 2) in the prior art, diffusion valve 5 is directly communicated with gas piping 14, when the opening pressure of natural gas diffusion valve is tested, need to regulate pressure regulator 2 to make the opening pressure of diffusion valve 5 reach setting value, now gas distributing system participates in test jobs, can cause the fluctuation of pipe network gas pressure, have very large potential safety hazard; And it can also be seen that from Fig. 2, the free end of this exhaust stack is directly communicated with atmosphere, unshielded device, the dust in atmosphere and sleet are easy to enter in exhaust stack, blocking pipe, diffusion valve does not have the effect of early warning.
The utility model is improvements over the prior art (referring to Fig. 1), gas piping 14 is communicated with gas distributing system, on the first exhaust stack 4 being communicated with gas piping 14 at diffusion valve 5, be provided with and detect operation valve 3, in the time detecting operation, close this detection operation valve 3, can make user's pipe network and detection system disconnect; On the first exhaust stack between this detection operation valve 3 and diffusion valve 5, be communicated with arm, this arm is provided with the first arm 9 and the second arm 11, the first arm 9 and the second arm 11 can be communicated with arm by three-way connection or T-valve, described the first arm 9 is communicated with extraneous source of the gas, and control air inflow by air source control valve 10, the second arm 11 is provided with pressure control valve 12, and Bonding pressure meter, and pressure is detected; Free end in the second exhaust stack 6 vertical sections is provided with dust cap 7, the horizontal segment of the second exhaust stack 6 is provided with the blowoff valve 8 being communicated with by three-way connection, described blowoff valve 8 is located at the second exhaust stack 6 horizontal segments and vertical section intersection, dust cap 7 can prevent that dust sleet from entering exhaust stack, and the sewage that enters on a small quantity pipeline can be discharged by blowoff valve, avoid exhaust stack to stop up.
In the time that diffusion valve opening pressure is tested, close and detect operation valve 3, the first arm 9 connects source of the gas, and the second arm 11 connects pressure gauge, opens air source control valve 10 and pressure control valve 12, check that blowoff valve makes in closed condition, source of the gas enters from the first arm 9, regulates air source control valve 10, observed pressure meter, debugging makes air pressure reach the setting value of diffusion valve 5, thereby makes diffusion valve startup work.After being completed, opening and detect operation valve 3, close air source control valve 10 and pressure control valve 12.Blowoff valve periodic blow down, at ordinary times in closed condition.
Claims (5)
1. a NG Pipe Exhaust valve online testing device, comprise pressure regulator (2), diffusion valve (5) and exhaust stack, on the gas piping (14) that connects pressure regulator two ends, be provided with air intake control valve (1) and leaving air control valve (13), diffusion valve (5) is located on the exhaust stack being communicated with gas piping (14), it is characterized in that: on the first exhaust stack (4) being communicated with gas piping (14) at diffusion valve (5), be provided with and detect operation valve (3), on the first exhaust stack (4) between this detection operation valve (3) and diffusion valve (5), be communicated with arm, this arm is provided with the first arm (9) and the second arm (11), described the first arm (9) is provided with air source control valve (10), the second arm (11) is provided with pressure control valve (12).
2. NG Pipe Exhaust valve online testing device according to claim 1, is characterized in that: described the first arm (9) and the second arm (11) are communicated with arm by three-way connection.
3. NG Pipe Exhaust valve online testing device according to claim 1, is characterized in that: described the first arm (9) and the second arm (11) are communicated with arm by T-valve.
4. NG Pipe Exhaust valve online testing device according to claim 1, it is characterized in that: the free end in the vertical section of the second exhaust stack (6) is provided with dust cap (7), and the horizontal segment of the second exhaust stack (6) is provided with the blowoff valve (8) being communicated with by three-way connection.
5. NG Pipe Exhaust valve online testing device according to claim 4, is characterized in that: described blowoff valve (8) is located at the second exhaust stack (6) horizontal segment and vertical section intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185091.6U CN203811371U (en) | 2014-04-16 | 2014-04-16 | Natural gas line bleeding valve on-line testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185091.6U CN203811371U (en) | 2014-04-16 | 2014-04-16 | Natural gas line bleeding valve on-line testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811371U true CN203811371U (en) | 2014-09-03 |
Family
ID=51450107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420185091.6U Expired - Lifetime CN203811371U (en) | 2014-04-16 | 2014-04-16 | Natural gas line bleeding valve on-line testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699023A (en) * | 2016-01-19 | 2016-06-22 | 中石化石油工程设计有限公司 | Measuring device and method suitable for carbon dioxide pipeline exhaust and leakage test |
| CN109540498A (en) * | 2017-09-18 | 2019-03-29 | 盐城市大丰燃气设备有限公司 | A kind of automatic testing method of gas safe diffusion valve |
-
2014
- 2014-04-16 CN CN201420185091.6U patent/CN203811371U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699023A (en) * | 2016-01-19 | 2016-06-22 | 中石化石油工程设计有限公司 | Measuring device and method suitable for carbon dioxide pipeline exhaust and leakage test |
| CN105699023B (en) * | 2016-01-19 | 2018-11-13 | 中石化石油工程设计有限公司 | Measuring device and measurement method suitable for carbon dioxide conduit emptying and leak-testing |
| CN109540498A (en) * | 2017-09-18 | 2019-03-29 | 盐城市大丰燃气设备有限公司 | A kind of automatic testing method of gas safe diffusion valve |
| CN109540498B (en) * | 2017-09-18 | 2021-12-10 | 盐城市大丰燃气设备有限公司 | Automatic detection method for gas safety relief valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206711349U (en) | A kind of gas safety detection warning device | |
| CN107024377B (en) | Online dilution monitoring device for total hydrocarbons in waste gas | |
| CN203656576U (en) | Pressure regulating and metering platform for fuel gas | |
| CN203811371U (en) | Natural gas line bleeding valve on-line testing device | |
| CN204269392U (en) | Mining datonation-inhibition device of blast prevention Performance Test System | |
| CN203551272U (en) | Safety valve test and verification apparatus regulating pressure by use of pressure regulator | |
| CN205371732U (en) | A relief valve for low pressure gas piping | |
| CN203718382U (en) | Safe diffusing system of fuel gas pipeline | |
| CN103407567B (en) | The integrated power control unit of liquefied natural gas (LNG) power ship | |
| CN209229756U (en) | It is a kind of to detect the safety device for improving heat accumulation type thermal oxidation furnace based on LEL | |
| CN216934509U (en) | Environment-friendly movable water supply and liquid supply fire station | |
| CN203908834U (en) | Pretreatment system for on-line coal gasification analysis sample | |
| CN202329953U (en) | Device for on-line checking of trace leakage inside valve | |
| CN202614559U (en) | Heat-preserving sampling device for coal gas | |
| CN108943869A (en) | A kind of positioning of fuel gas pipeline leakage and detection system | |
| CN102201149A (en) | Device for centralized monitoring and warning of civil gas leak | |
| CN105755202A (en) | Oxygen pipeline system and anti-blasting device of extra-large converter oxygen lance valve station | |
| CN205918508U (en) | Natural gas diesel dual -fuel internal -combustion engine gas leak testing and alarm system | |
| CN204964263U (en) | Natural gas sampling device | |
| CN205877721U (en) | Liquid hydrocarbon spherical tank accident water injection system | |
| CN209540510U (en) | A kind of device that gives out of gas of anti-leak | |
| CN203082549U (en) | Gas diffusion device | |
| CN114470575A (en) | Environment-friendly movable water supply and liquid supply fire station | |
| CN206459019U (en) | A kind of pipeline gas transmission station anti-leak alarm and technological processing for explosion protection feature device | |
| CN107519594B (en) | A kind of multichannel fire arrester and its working method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200727 Address after: 101100 Fourth Floor 5-101, No. 38 Building, No. 1 Jinghai Five Road, Tongzhou District, Beijing Patentee after: ENN (CHINA) GAS INVESTMENT Co.,Ltd. Address before: 050035 No. 558 Heping East Road, Hebei, Shijiazhuang Patentee before: SHIJIAZHUANG ENN GAS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |