CN203703614U - Natural gas substation compressor pipeline connection structure - Google Patents
Natural gas substation compressor pipeline connection structure Download PDFInfo
- Publication number
- CN203703614U CN203703614U CN201420077029.5U CN201420077029U CN203703614U CN 203703614 U CN203703614 U CN 203703614U CN 201420077029 U CN201420077029 U CN 201420077029U CN 203703614 U CN203703614 U CN 203703614U
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- pressure gas
- pressure
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- Expired - Fee Related
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Abstract
The utility model discloses a natural gas substation compressor pipeline connection structure which comprises a low pressure gas inlet pipeline, a medium pressure gas outlet pipeline and a high pressure gas outlet pipeline which are connected with a compressor. An inlet of the low pressure gas inlet pipeline is connected with a tank car, an outlet of the medium pressure gas outlet pipeline is connected with a medium pressure gas storage bottle group, an outlet of the high pressure gas outlet pipeline is connected with a high pressure gas storage bottle group, a bypass branch is connected between the low pressure gas inlet pipeline and the medium pressure gas outlet pipeline, a medium and low pressure bypass electromagnetic valve is arranged on the bypass branch and connected with a controller, and a one-way valve used for preventing natural gas in the medium pressure gas storage bottle group from flowing back into the tank car is connected between the medium pressure gas outlet pipeline and the low pressure gas inlet pipeline. The bypass branch is connected between the medium pressure gas outlet pipeline and the low pressure gas inlet pipeline, the electromagnetic valve is arranged on the bypass branch, the controller is utilized to control opening or closing of the electromagnetic valve and ensure that the pressure of the outlet of the high pressure gas outlet pipeline reaches the rated value, and the structure is obvious in effect in actual application.
Description
Technical field
The utility model relates to natural gas substation compressor, specifically relates to the pipeline jointing construction of natural gas substation compressor.
Background technique
General compressor circuit linkage structure is that compressor is connected with high pressure outlet pipe with low-pressure admission pipeline, middle extrusion air pipe respectively, the entrance access slot car of low-pressure admission pipeline, the outlet of middle extrusion air pipe connects middle pressure air cylinder group, and the outlet of high pressure outlet pipe connects high-pressure gas cylinder group.Low pressure natural gas in tank car is delivered to compressor through low-pressure admission pipeline, and after compressor is compressed into mesohigh gas, more respectively through in extrude air pipe and be delivered to middle pressure air cylinder group, and be delivered to high-pressure gas cylinder group through high pressure outlet pipe.Specifically as shown in Figure 1.Middle pressure air cylinder group is connected gas selling machine by gas transfer pipeline respectively with high-pressure gas cylinder group.If low-pressure admission pipeline inlet pressure is lower than 10MPa and to add tolerance one large a little in above-mentioned working procedure, just be difficult to ensure the rated pressure of outlet high pressure, this just caused gas selling machine sell atmospheric pressure deficiency, to add tolerance few, affect the normal operation of station, terminal client suggestion is very large, can lose a large amount of travellers when long in the past.This is the common fault of current all sub-station compressors.
Model utility content
In order to solve the problems of the technologies described above, the utility model provides a kind of natural gas substation compressor pipeline jointing construction.
The technical solution that the utility model adopts is:
A kind of natural gas substation compressor pipeline jointing construction, comprise the low-pressure admission pipeline being connected with compressor, middle extrusion air pipe and high pressure outlet pipe, the entrance access slot car of low-pressure admission pipeline, the outlet of middle extrusion air pipe connects middle pressure air cylinder group, the outlet of high pressure outlet pipe connects high-pressure gas cylinder group, between low-pressure admission pipeline and middle extrusion air pipe, be connected a bypass branch road, on bypass branch road, be provided with mesolow bypass solenoid valve, mesolow bypass solenoid valve is connected with controller, on low-pressure admission pipeline, be provided with the one-way valve of the rock gas refluence return-enclosure car preventing in middle pressure air cylinder group.
Whether above-mentioned controller can reach setting value by the pressure reduction of detection low-pressure admission pipeline inlet pressure and high pressure outlet pipe outlet pressure is controlled solenoid valve keying.
Useful technique effect of the present utility model is:
The utility model is connected a bypass branch road between middle extrusion air pipe and low-pressure admission pipeline, a solenoid valve is set on bypass branch road, open or close by controller control solenoid valve, guaranteed that high pressure outlet pipe outlet pressure reaches rating value, successful in actual application.
Brief description of the drawings
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Fig. 1 is existing natural gas substation compressor pipeline jointing construction schematic diagram;
Fig. 2 is the compressor circuit linkage structure schematic diagram after the utility model improves.
In Fig. 2: 1-natural gas substation compressor, 2-low-pressure admission pipeline, extrudes air pipe in 3-, 4-high pressure outlet pipe, 5-bypass branch road, 6-mesolow bypass solenoid valve, 7-one-way valve.
Embodiment
By reference to the accompanying drawings, a kind of natural gas substation compressor pipeline jointing construction, comprises the low-pressure admission pipeline 2 being connected with natural gas substation compressor 1, middle extrusion air pipe 3 and high pressure outlet pipe 4.The entrance access slot car of low-pressure admission pipeline 2, the outlet of middle extrusion air pipe 3 connects middle pressure air cylinder group, and the outlet of high pressure outlet pipe 4 connects high-pressure gas cylinder group.Middle pressure air cylinder group is connected gas selling machine by gas transfer pipeline respectively with high-pressure gas cylinder group.Between low-pressure admission pipeline 2 and middle extrusion air pipe 3, be connected a bypass branch road 5, be provided with mesolow bypass solenoid valve 6 on bypass branch road 5, mesolow bypass solenoid valve 6 is connected with controller.Whether controller can reach setting value by the pressure reduction of detection low-pressure admission pipeline inlet pressure and high pressure outlet pipe outlet pressure is controlled solenoid valve keying.On low-pressure admission pipeline 2, be provided with one-way valve 7, one-way valve 7 is for preventing the rock gas refluence return-enclosure car in pressure air cylinder group.
Below working principle of the present utility model is described:
If adding tolerance in a period of time, aerating station increases, controller detects the pressure reduction of assessment low-pressure admission pipeline inlet pressure and high pressure outlet pipe outlet pressure, if high pressure outlet pipe outlet pressure does not reach setting value in set time, just start mesolow bypass valve program, at this moment mesolow bypass valve is opened, in press rock gas in air cylinder group to be directly input to the entrance of compressor, (low-pressure admission pipeline string has one-way valve, and the rock gas in middle pressure air cylinder group can not flow back to tank car) presses the natural gas straight in air cylinder group to play high pressure in using.If high pressure outlet pipe outlet pressure reaches setting value, mesolow bypass solenoid valve is closed, and what be now input to suction port of compressor is exactly the rock gas in tank car.
The relevant technologies content of not addressing in aforesaid way is taked or is used for reference prior art and can realize.
It should be noted that, under the instruction of this specification, any equivalents that those skilled in the art have done, or obvious variant, all should be within protection domain of the present utility model.
Claims (1)
1. a natural gas substation compressor pipeline jointing construction, comprise the low-pressure admission pipeline being connected with compressor, middle extrusion air pipe and high pressure outlet pipe, the entrance access slot car of low-pressure admission pipeline, the outlet of middle extrusion air pipe connects middle pressure air cylinder group, the outlet of high pressure outlet pipe connects high-pressure gas cylinder group, it is characterized in that: between low-pressure admission pipeline and middle extrusion air pipe, be connected a bypass branch road, on bypass branch road, be provided with mesolow bypass solenoid valve, mesolow bypass solenoid valve is connected with controller, on low-pressure admission pipeline, be provided with the one-way valve of the rock gas refluence return-enclosure car preventing in middle pressure air cylinder group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077029.5U CN203703614U (en) | 2014-02-21 | 2014-02-21 | Natural gas substation compressor pipeline connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077029.5U CN203703614U (en) | 2014-02-21 | 2014-02-21 | Natural gas substation compressor pipeline connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703614U true CN203703614U (en) | 2014-07-09 |
Family
ID=51054056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077029.5U Expired - Fee Related CN203703614U (en) | 2014-02-21 | 2014-02-21 | Natural gas substation compressor pipeline connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807603A (en) * | 2014-02-21 | 2014-05-21 | 青岛东燃燃气设备有限公司 | Natural gas substation compressor pipeline connecting structure and new natural gas compressing technology |
| CN106322111A (en) * | 2016-10-10 | 2017-01-11 | 北京京诚泽宇能源环保工程技术有限公司 | Gas storage and distribution pressure-adjusting system |
-
2014
- 2014-02-21 CN CN201420077029.5U patent/CN203703614U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807603A (en) * | 2014-02-21 | 2014-05-21 | 青岛东燃燃气设备有限公司 | Natural gas substation compressor pipeline connecting structure and new natural gas compressing technology |
| CN106322111A (en) * | 2016-10-10 | 2017-01-11 | 北京京诚泽宇能源环保工程技术有限公司 | Gas storage and distribution pressure-adjusting 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20190221 |