CN202598137U - Natural gas pressure reducing device with tandem pressure regulating valves - Google Patents
Natural gas pressure reducing device with tandem pressure regulating valves Download PDFInfo
- Publication number
- CN202598137U CN202598137U CN 201220255393 CN201220255393U CN202598137U CN 202598137 U CN202598137 U CN 202598137U CN 201220255393 CN201220255393 CN 201220255393 CN 201220255393 U CN201220255393 U CN 201220255393U CN 202598137 U CN202598137 U CN 202598137U
- Authority
- CN
- China
- Prior art keywords
- pressure regulating
- valve
- pipeline
- gas
- ball valve
- 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
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a natural gas pressure reducing device with tandem pressure regulating valves. The device comprises a gas inlet which is connected with a gas inlet ball valve through a pipeline. The right side of the gas inlet ball valve is connected with a first pressure regulating valve through a pipeline. The right side of the first pressure regulating valve is connected with a second pressure regulating valve through a pipeline. The right side of the second pressure regulating valve is connected with a gas outlet ball valve through a pipeline. The right side of the gas outlet ball valve is connected with a gas outlet through a pipeline. In such a way, natural gas enters the device from the gas inlet, and reaches the first pressure regulating valve through the gas inlet ball valve, the pressure of the natural gas is reduced from the original 0.8 to 1.6MPa to 0.4 to 0.5MPa by the first pressure regulating valve, and then is reduced from 0.4 to 0.5MPa to be below 0.3MPa by the second pressure regulating valve, and the natural gas is supplied to a user for use through the gas outlet. The pressure regulating range of the second pressure regulating valve is narrow, so that the discharged gas is stable, and a buffer tank is not required to be arranged at a rear end. Moreover, the pressure regulating ranges of the two pressure regulating valves are narrowed, so that impact on thin films in the valves is reduced, and the service life of each pressure regulating valve is prolonged.
Description
Technical field
The utility model relates to the natural gas transport field and especially relates to a kind of rock gas series voltage-regulating valve decompressor.
Background technique
Existing rock gas pressure regulating equipment has two kinds, single loop and double loop.Single loop promptly has only a pressure regulator valve, and the double loop is that two pressure regulator valves are in parallel installed with, a use; One subsequent use, owing to use a pressure regulator valve, range of regulation is big; Gas pulsation after the pressure regulation is also bigger, in order to make user terminal gas more stable, often after user terminal also will be joined a knock out drum, could stablize air feed; A subsequent use general long-term off position that is in causes cost waste.
Summary of the invention
The utility model technical problem to be solved provides a kind of rock gas series voltage-regulating valve decompressor.
The utility model solves the technological scheme that its technical problem adopted: a kind of rock gas series voltage-regulating valve decompressor; Comprise suction port; Said suction port links to each other with the air inlet ball valve through pipeline, and said air inlet ball valve right side links to each other with first pressure regulator valve through pipeline, and the said first pressure regulator valve right side links to each other with second pressure regulator valve through pipeline; The said second pressure regulator valve right side is connected with the ball valve of giving vent to anger through pipeline, and the said ball valve right side of giving vent to anger is connected with the air outlet through pipeline.
After adopting said structure, be characterized in: original two pressure regulator valves are changed into from parallelly connected state be connected in series, like this when the user needs to use gas; The air inlet ball valve and the ball valve of giving vent to anger are opened, and rock gas gets into from suction port, arrives first pressure regulator valve through the air inlet ball valve and carries out pressure regulation; Make rock gas pressure drop to 0.4 to 0.5MPa from original 0.8 to 1.6MPa, continue then to carry out pressure regulation through second pressure regulator valve, the time rock gas pressure drop to below the 0.3MPa from 0.4 to 0.5MPa; Supply with the user through the air outlet again and use, second pressure regulator valve is because range of regulation is very little, so the gas of output is very stable; Therefore, the rear end need not to install knock out drum, and; Because the range of regulation of two pressure regulator valves has all dwindled, the film impact force in the valve is lowered, thereby make the life-span of pressure regulator valve obtain prolonging.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
Among the figure: 1. suction port, 2. air inlet ball valve, 3. first pressure regulator valve, 4. second pressure regulator valve, 5. give vent to anger ball valve, 6. air outlet.
Embodiment
A kind of rock gas series voltage-regulating valve decompressor shown in Figure 1; Comprise suction port 1; Said suction port 1 links to each other with air inlet ball valve 2 through pipeline, and said air inlet ball valve 2 right sides link to each other with first pressure regulator valve 3 through pipeline, and said first pressure regulator valve 3 right sides link to each other with second pressure regulator valve 4 through pipeline; Said second pressure regulator valve 4 right sides are connected with the ball valve 5 of giving vent to anger through pipeline, and said ball valve 5 right sides of giving vent to anger are connected with air outlet 6 through pipeline.
After adopting said structure, be characterized in: when the user needs to use gas, the air inlet ball valve 2 and the ball valve 5 of giving vent to anger are opened; Rock gas gets into from suction port 1, arrives first pressure regulator valve 3 through air inlet ball valve 2 and carries out pressure regulation, makes rock gas pressure drop to 0.4 to 0.5MPa from original 0.8 to 1.6MPa; Continue then to carry out pressure regulation through second pressure regulator valve 4, the time rock gas pressure drop to below the 0.3MPa from 0.4 to 0.5MPa, supply with users through air outlet 6 again and use; Second pressure regulator valve 4 is because range of regulation is very little, so the gas of output is very stable, therefore; The rear end need not to install knock out drum, and, because the range of regulation of two pressure regulator valves has all dwindled; Film impact force in the valve is lowered, thereby make the life-span of pressure regulator valve obtain prolonging.
Claims (1)
1. rock gas series voltage-regulating valve decompressor; Comprise suction port (1); It is characterized in that: said suction port (1) links to each other with air inlet ball valve (2) through pipeline, and said air inlet ball valve (2) right side links to each other with first pressure regulator valve (3) through pipeline, and said first pressure regulator valve (3) right side links to each other with second pressure regulator valve (4) through pipeline; Said second pressure regulator valve (4) right side is connected with the ball valve of giving vent to anger (5) through pipeline, and the said ball valve of giving vent to anger (5) right side is connected with air outlet (6) through pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255393 CN202598137U (en) | 2012-06-01 | 2012-06-01 | Natural gas pressure reducing device with tandem pressure regulating valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255393 CN202598137U (en) | 2012-06-01 | 2012-06-01 | Natural gas pressure reducing device with tandem pressure regulating valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202598137U true CN202598137U (en) | 2012-12-12 |
Family
ID=47315676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255393 Expired - Fee Related CN202598137U (en) | 2012-06-01 | 2012-06-01 | Natural gas pressure reducing device with tandem pressure regulating valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202598137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197199A (en) * | 2014-08-04 | 2014-12-10 | 大连派思燃气系统股份有限公司 | Natural gas outwards-transportation pressure sledge |
| CN104406053A (en) * | 2014-08-18 | 2015-03-11 | 徐丽华 | Oil gas temperature and pressure adjustment device |
-
2012
- 2012-06-01 CN CN 201220255393 patent/CN202598137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197199A (en) * | 2014-08-04 | 2014-12-10 | 大连派思燃气系统股份有限公司 | Natural gas outwards-transportation pressure sledge |
| CN104406053A (en) * | 2014-08-18 | 2015-03-11 | 徐丽华 | Oil gas temperature and pressure adjustment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202493900U (en) | Pressure flow regulation device | |
| CN204548515U (en) | A kind of aircraft zero minusg fuel feeding pressure charging system | |
| CN202598137U (en) | Natural gas pressure reducing device with tandem pressure regulating valves | |
| CN202561438U (en) | Gas pipeline system for natural gas pressure regulation device | |
| CN107385138A (en) | A kind of method for improving coal gas of converter pipe network system and protecting energy supply power | |
| CN203114773U (en) | Hydraulic feedback device and engineering machinery | |
| CN203006483U (en) | Single efficient continuous delivery pump | |
| CN104482279A (en) | Downstream under-pressure automatic closing pressure regulator | |
| CN203023801U (en) | Liquid replenishment system | |
| CN202302744U (en) | Compressed air supply system for chemical fiber production | |
| CN102935945B (en) | A kind of separate unit high-efficiency and continuous transmission pump | |
| CN103121588A (en) | Double-pipeline concentrated phase delivery system parallel discharge and blockage device and automatic control method | |
| CN210423868U (en) | Double-pilot pressure self-regulating valve | |
| CN204300682U (en) | For the pipeline control system of hydraulic piston type compressor | |
| CN203453170U (en) | Pressure-maintaining gas supply valve terminal system | |
| CN202300330U (en) | Self-control type oil well casing gas recovery device | |
| CN201353464Y (en) | Deduster blowing air tank structure | |
| CN202609582U (en) | Upper lead type single-stage high-output-force continuous conveying pump | |
| CN104595284B (en) | Unloading valve of emulsified liquid system | |
| CN210398405U (en) | Fuel gas pressure regulating system | |
| CN104595719A (en) | Air supply self changing device for air compressor | |
| CN203836578U (en) | Natural gas liquid-feeding device | |
| CN203810047U (en) | Medium or low pressure delivering and interchanging device of piston-type nitrogen compressor | |
| CN201193343Y (en) | Non-negative-pressure water supply equipment in set | |
| CN202733436U (en) | Supercharging device of natural gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140601 |