CN202598130U - Self-gas-supplying system controlled by pressure adjusting device of compressed natural gas - Google Patents
Self-gas-supplying system controlled by pressure adjusting device of compressed natural gas Download PDFInfo
- Publication number
- CN202598130U CN202598130U CN2012202200263U CN201220220026U CN202598130U CN 202598130 U CN202598130 U CN 202598130U CN 2012202200263 U CN2012202200263 U CN 2012202200263U CN 201220220026 U CN201220220026 U CN 201220220026U CN 202598130 U CN202598130 U CN 202598130U
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- gas
- valve
- pressure
- pressure adjusting
- natural gas
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Abstract
The utility model relates to a self-gas-supplying system, in particular to a self-gas-supplying system controlled by a pressure adjusting device of compressed natural gas. The self-gas-supplying system comprises a pneumatic cutting valve and a pressure adjusting valve connected in series sequentially at a high-pressure inlet pipe, and an inlet of the high-pressure inlet pipe is provided with a gas distributing device. The gas distributing device is connected with the pneumatic cutting valve through a gas supplying pipe of the pneumatic cutting valve, and the gas distributing device is connected with the pressure adjusting valve through a gas supplying pipe of the pressure adjusting valve. The gas distributing device is a gas buffering distributing tank connected through a high-medium pressure adjusting device. The inlet of the high pressure inlet pipe is provided with the gas distributing device connected with the pneumatic cutting valve through the gas supplying pipe of the pneumatic cutting valve and connected with the pressure adjusting valve through the gas supplying pipe of the pressure adjusting valve, so that high-pressure natural gas is distributed through the gas distributing device and supplied to the pneumatic cutting valve of a pressure adjusting valve port, the system can work normally, an automatic gas power source is achieved by using the high-pressure natural gas itself, and cost is reduced.
Description
Technical field
The utility model relates to a kind of from the air feed system, relate in particular to a kind of be used for Compressed natural gas pressure regulator device control from the air feed system.
Background technique
In fuel gas supply system, usually will be the reduce pressure pressure of customer requirements of high-pressure natural gas, use that could be safe and reliable.In order to satisfy safe and reliable demand, not only need accomplish from the conversion of high pressure to low pressure, and continuously to user's air feed by the voltage-regulating system that gas-pressure regulator is formed, but also the safety protection when needing superpressure.Pneumatic cut-off valve and the pressure regulator valve of existing way for connecting successively at the high-pressure inlet pipe; It is the pilot valve inflation that pressure regulator valve needs gas, and pilot valve just can provide signal then, and the spool in the indication voltage-regulating transformer valve body is opened; Combustion gas begins to regulate pressure to needs numerical value at last through pressure governor.And pneumatic cut-off valve also needs gas as power source.
For the safety of whole fuel gas supply system, in the time period of fuel gas supply system air feed, needing continually provides compressed gas for pressure governor and pneumatic cut-off valve.It is power source that existing pressure governor and pneumatic cut-off valve generally adopt nitrogen or pressurized air.Wherein, nitrogen is generally all used single gas cylinder splendid attire.Though nitrogen in the less investment of initial operating stage cost, needs to continue to change gas cylinder in later maintenance.Though and pressurized air does not need to change, the use scene needs the explosion-proof type compressor or builds compressor plant outward at safe distance, connects with pipeline and comes, and overall cost is higher.
The model utility content
The utility model technical problem to be solved is, overcomes the deficiency that exists in the existing technology, provide a kind of reduce cost be used for Compressed natural gas pressure regulator device control from the air feed system.
The utility model is to be achieved through following technological scheme:
A kind of be used for Compressed natural gas pressure regulator device control from the air feed system; Be included in pneumatic cut-off valve and pressure regulator valve that the high-pressure inlet pipe is connected successively; The import of said high-pressure inlet pipe is provided with gas distributor; Said gas distributor is connected with pneumatic cut-off valve through the pneumatic cut-off valve air supply pipe, and gas distributor is connected with pressure regulator valve through the pressure regulator valve air supply pipe.
Said gas distributor is the gas buffer distribution tank that is connected by the high pressure pressure governor.
Said pneumatic cut-off valve air supply pipe is provided with solenoid valve.
The beneficial effect of the utility model is:
Because the import of said high-pressure inlet pipe is provided with gas distributor; Said gas distributor is connected with pneumatic cut-off valve through the pneumatic cut-off valve air supply pipe; Gas distributor is connected with pressure regulator valve through the pressure regulator valve air supply pipe, is that the pressure regulator valve implication is moved the cut-off valve air feed after making high-pressure natural gas distribute through gas distributor, makes it can proper functioning; Utilize the gas of high-pressure natural gas own to realize automatic aerodynamic force source, reduced cost.
Description of drawings
Fig. 1 is the main TV structure schematic representation of the utility model.
Fig. 2 is the A-A schematic cross-section of the utility model.
Among the figure: 1. aciculiform stop valve, 2. connecting tube, 3. pressure governor inlet union, 4. high pressure pressure governor; 5. internal thread ball valve, 6. gas buffer distribution tank, 7. internal thread ball valve, 8. internal thread ball valve; 9. pressure gauge crossover sub, 10. pressure gauge, 11. internal thread ball valves, 12. internal thread ball valves; 13. the high pressure air inlet tube, 14. pneumatic cut-off valves, 15. solenoid valves, 16. pressure governors.
Embodiment
For the technician who makes the present technique field understands the technological scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and most preferred embodiment.
As shown in Figure 1; The utility model is included in pneumatic cut-off valve 14 and the pressure regulator valve 16 that high-pressure inlet pipe 13 is connected successively; The import of said high-pressure inlet pipe is provided with gas distributor; Said gas distributor is connected with pneumatic cut-off valve through the pneumatic cut-off valve air supply pipe, and gas distributor is connected with pressure regulator valve through the pressure regulator valve air supply pipe.
Said gas distributor is the gas buffer distribution tank 6 that is connected by high pressure pressure governor 4.
Said pneumatic cut-off valve air supply pipe is provided with solenoid valve 15.
During work, high-pressure natural gas is sent into high pressure air inlet tube 13, and so can not directly be used for the use of cut-off valve and pressure governor, need with high pressure pressure governor 4 high-pressure natural gas pressure be reduced to suitable pressure because gas pressure is too high this moment.Whether pressure was correct after pressure gauge 10 was used for monitoring pressure regulation.Low pressure natural gas after the pressure regulation gets into gas buffer distribution tank 6, connects pressure regulator valve air supply pipe, internal thread ball valve 12 connection pneumatic cut-off valve air supply pipes through internal thread ball valve 11 again, is pressure regulator valve and pneumatic cut-off valve air feed.Because whole gas-fired equipment will move under the control panel monitoring, as powering-off state takes place, control panel can't be accomplished monitoring; Can cause this system on the line, so when powering-off state, control panel control electromagnetic valve 15 closures; Pneumatic cut-off valve can't obtain air feed; Pneumatic cut-off valve is closed, and system stops, and has so just protected the safety of whole system.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (3)
- One kind be used for Compressed natural gas pressure regulator device control from the air feed system; Be included in pneumatic cut-off valve and pressure regulator valve that the high-pressure inlet pipe is connected successively; It is characterized in that; The import of said high-pressure inlet pipe is provided with gas distributor, and said gas distributor is connected with pneumatic cut-off valve through the pneumatic cut-off valve air supply pipe, and gas distributor is connected with pressure regulator valve through the pressure regulator valve air supply pipe.
- 2. according to claim 1 a kind of be used for Compressed natural gas pressure regulator device control from the air feed system, it is characterized in that said gas distributor be the gas buffer distribution tank by the connection of high pressure pressure governor.
- 3. according to claim 1 and 2 a kind of be used for Compressed natural gas pressure regulator device control from the air feed system, it is characterized in that said pneumatic cut-off valve air supply pipe is provided with solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202200263U CN202598130U (en) | 2012-05-16 | 2012-05-16 | Self-gas-supplying system controlled by pressure adjusting device of compressed natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202200263U CN202598130U (en) | 2012-05-16 | 2012-05-16 | Self-gas-supplying system controlled by pressure adjusting device of compressed natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202598130U true CN202598130U (en) | 2012-12-12 |
Family
ID=47315669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202200263U Expired - Fee Related CN202598130U (en) | 2012-05-16 | 2012-05-16 | Self-gas-supplying system controlled by pressure adjusting device of compressed natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202598130U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141880A (en) * | 2014-08-07 | 2014-11-12 | 江南工业集团有限公司 | Power gas cylinder self-inflating device of compressed natural gas tank truck |
| CN105065910A (en) * | 2015-08-17 | 2015-11-18 | 天津市冠东科技有限公司 | Automatic pressure supplement and flow stabilization system |
| CN108224091A (en) * | 2018-01-08 | 2018-06-29 | 浙江强盛压缩机制造有限公司 | A kind of compressor natural gas instrument wind control system |
| CN108954000A (en) * | 2017-05-17 | 2018-12-07 | 北京航天试验技术研究所 | A kind of remote control automatic air supply system |
-
2012
- 2012-05-16 CN CN2012202200263U patent/CN202598130U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141880A (en) * | 2014-08-07 | 2014-11-12 | 江南工业集团有限公司 | Power gas cylinder self-inflating device of compressed natural gas tank truck |
| CN104141880B (en) * | 2014-08-07 | 2016-04-20 | 江南工业集团有限公司 | Compressed natural gas tank car power gas bottle self-inflator |
| CN105065910A (en) * | 2015-08-17 | 2015-11-18 | 天津市冠东科技有限公司 | Automatic pressure supplement and flow stabilization system |
| CN108954000A (en) * | 2017-05-17 | 2018-12-07 | 北京航天试验技术研究所 | A kind of remote control automatic air supply system |
| CN108224091A (en) * | 2018-01-08 | 2018-06-29 | 浙江强盛压缩机制造有限公司 | A kind of compressor natural gas instrument wind control system |
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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 |
Granted publication date: 20121212 Termination date: 20190516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |