CN201973445U - Special hydraulic secondary refueling station for compressed natural gas transportation semitrailer - Google Patents
Special hydraulic secondary refueling station for compressed natural gas transportation semitrailer Download PDFInfo
- Publication number
- CN201973445U CN201973445U CN2011200883849U CN201120088384U CN201973445U CN 201973445 U CN201973445 U CN 201973445U CN 2011200883849 U CN2011200883849 U CN 2011200883849U CN 201120088384 U CN201120088384 U CN 201120088384U CN 201973445 U CN201973445 U CN 201973445U
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- Prior art keywords
- natural gas
- compressed natural
- delivery pipe
- pressure
- gas transportation
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- Expired - Fee Related
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Abstract
The utility model discloses an accessory of a compressed natural gas transportation semitrailer, and particularly discloses a special hydraulic secondary refueling station for the compressed natural gas transportation semitrailer, which is characterized by comprising a liquid storage tank which is provided with a delivery pipe and a backflow pipe, wherein a high-pressure pump is arranged on the delivery pipe, and a pressure control valve is arranged at the cross position of the delivery pipe and the backflow pipe and connected with a steel gas storage cylinder after being controlled by a PLC (programmable logic controller) system. The special hydraulic secondary refueling station realizes refueling automation due to the adoption of the PLC system and the pressure control valve, thus greatly improving the refueling efficiency, saving time for people and providing convenience for people.
Description
(1) technical field
The utility model relates to a kind of compressed natural gas conveying semi-trailer annex, particularly a kind of compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation.
(2) background technique
The aerator of present employed compressed natural gas conveying semi-trailer fails to realize automation, and aerating needs artificial auxiliary aerating, and aerating efficient is lower, the waste more time of people, does not satisfy the needs of modern society.
(3) summary of the invention
The utility model is in order to remedy the defective of prior art, and a kind of aerating automaticity height, compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation that aerating efficient is high are provided.
The utility model is achieved by the following technical solution:
A kind of compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation, it is characterized in that: comprise wet tank, wet tank is provided with delivery pipe and reflow pipe, delivery pipe is provided with high-pressure service pump, the infall of delivery pipe and reflow pipe is provided with pressure controlled valve, and pressure controlled valve is connected with the gas storage steel cylinder after the control of PLC control system.
The beneficial effects of the utility model are: this compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation, and adopt PLC control system and pressure controlled valve to realize the automation of aerating, improved aerating efficient greatly, save people's time, provide convenience to people.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is the structural representation of the utility model compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation.
Among the figure, 1 wet tank, 2 high-pressure service pumps, 3 pressure controlled valves, 4PLC control system, 5 reflow pipes, 6 gas storage steel cylinders, 7 filling machines, 8 delivery pipes.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation, it is characterized in that: comprise wet tank 1, wet tank 1 is provided with delivery pipe 8 and reflow pipe 5, delivery pipe 8 is provided with high-pressure service pump 2, the infall of delivery pipe 8 and reflow pipe 5 is provided with pressure controlled valve 3, and pressure controlled valve 3 is connected with gas storage steel cylinder 6 after 4 controls of PLC control system.
This compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation monitors hydraulic system pressure when low when just beginning starting device or PLC control system 4, and high-pressure service pump 2 is started working, and charges into high-pressure liquid medium in gas storage steel cylinder 6; Pressure controlled valve 3 is set liquid outlet pressure control range 20～25MPa, pressure controlled valve 3 is controlled by pressure transducer and pneumatic actuator by PLC control system 4.When hydraulic system pressure reached high limit 25MPa, pressure controlled valve 3 stopped to gas storage steel cylinder 6 feed flows, and by reflow pipe 5 highly pressurised liquid is back in the wet tank 1; High-pressure service pump 2 is through the time-delay of certain hour, if gas storage steel cylinder 6 pressure still do not fall, then high-pressure service pump 2 quits work; When gas storage steel cylinder 6 pressure were reduced to lowest limit 20MPa, high-pressure service pump 2 restarted work.By filling machine 7 high-pressure natural gas is charged in the air cylinder of automobile at last, reach purpose, need not adopt other supercharging equipments to refueling.
Claims (1)
1. compressed natural gas conveying semi-trailer dedicated hydraulic air entraining substation, it is characterized in that: comprise wet tank (1), wet tank (1) is provided with delivery pipe (8) and reflow pipe (5), delivery pipe (8) is provided with high-pressure service pump (2), the infall of delivery pipe (8) and reflow pipe (5) is provided with pressure controlled valve (3), and pressure controlled valve (3) is connected with gas storage steel cylinder (6) after PLC control system (4) control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200883849U CN201973445U (en) | 2011-03-30 | 2011-03-30 | Special hydraulic secondary refueling station for compressed natural gas transportation semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200883849U CN201973445U (en) | 2011-03-30 | 2011-03-30 | Special hydraulic secondary refueling station for compressed natural gas transportation semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973445U true CN201973445U (en) | 2011-09-14 |
Family
ID=44578547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200883849U Expired - Fee Related CN201973445U (en) | 2011-03-30 | 2011-03-30 | Special hydraulic secondary refueling station for compressed natural gas transportation semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973445U (en) |
-
2011
- 2011-03-30 CN CN2011200883849U patent/CN201973445U/en not_active Expired - Fee Related
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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: 20110914 Termination date: 20170330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |