CN203517306U - High-pressure pump device of gas filling substation of CNG (Compressed Natural Gas) car - Google Patents
High-pressure pump device of gas filling substation of CNG (Compressed Natural Gas) car Download PDFInfo
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- CN203517306U CN203517306U CN201320388313.XU CN201320388313U CN203517306U CN 203517306 U CN203517306 U CN 203517306U CN 201320388313 U CN201320388313 U CN 201320388313U CN 203517306 U CN203517306 U CN 203517306U
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- pressure pump
- natural gas
- pump device
- pressure
- cng
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Abstract
The utility model discloses a high-pressure pump device of a gas filling substation of a CNG (Compressed Natural Gas) car. The high-pressure pump device comprises a liquid natural gas pipeline inlet and a liquid natural gas pipeline outlet, wherein two sets of high-pressure pumps are arranged between the liquid natural gas pipeline inlet and the liquid natural gas pipeline outlet in parallel. The high-pressure pump device comprises the two sets of high-pressure pumps which are connected in parallel; one high-pressure pump is a common high-pressure pump device and the other high-pressure pump is used as a spare high-pressure pump device. When gas amount is large, the two high-pressure pump devices are started at the same time and the conveying efficiency can be improved; when the gas is about to be completely conveyed, one high-pressure pump device is stopped and the conveying amount is easy to control; when one high-pressure pump device needs to be repaired, the normal conveying requirements can be maintained by the other high-pressure pump device and the work of the whole gas filling substation is not influenced.
Description
Technical field
The utility model relates to natural gas technical field, particularly relates to a kind of high pressure pumping apparatus of CNG automobile secondary gas filling station.
Background technique
CNG gas station refers to provides the place of fuel to gas-fueled vehicles (Natural Gas Vehicle) and large-scale CNG substation car with compressed natural gas (CNG) form.
CNG substation trailer arrives after CNG air entraining substation, by ready-packaged joint, high pressure feed liquor flexible pipe, high pressure return flexible hose, control tracheae bundle, CNG high pressure air-out hose is connected with hydraulic substation prying body.After system connects, start hydraulic substation prying body or monitor hydraulic system pressure when low in PLC control system, high-pressure hydraulic pump is started working, PLC automatic control system can be opened the liquid flowing valve of a steel cylinder and the valve of giving vent to anger, high-pressure liquid medium is injected to a steel cylinder, guarantee that in the trailer steel cylinder of CNG substation, gas pressure remains on 20-22Mpa, CNG after CNG high pressure air-out hose enters substation prying body knock out drum, is delivered to CNG filling machine to CNG fuel automobile aerating through high-voltage tube by steel cylinder air outlet.
The different high-pressure service pump of power, when building air entraining substation, can be selected according to the size of scale in most domestic city now, and its power remains unchanged, and its deficiency is that the high-pressure service pump of relatively high power is not easy to control its quantity delivered when rock gas consumption is few; When large usage quantity, the transporting velocity of the high-pressure service pump of smaller power is excessively slow.
Model utility content
The purpose of this utility model is for the technological deficiency existing in prior art, and a kind of high pressure pumping apparatus of CNG automobile secondary gas filling station is provided.
For realizing the technological scheme that the purpose of this utility model adopts, be: a kind of high pressure pumping apparatus of CNG automobile secondary gas filling station, it is characterized in that comprising liquid natural gas pipeline entrance and the outlet of liquid natural gas pipeline, between described liquid natural gas pipeline entrance and the outlet of liquid natural gas pipeline, be parallel with two high-pressure service pumps.
Preferably, the power of described high-pressure service pump is less than the power of high-pressure service pump.
Compared with prior art, its beneficial effect is, high pressure pumping apparatus of the present utility model comprises two high-pressure service pumps in parallel, using wherein one as conventional high pressure pumping apparatus, using other one as standby high pressure pumping apparatus.When tolerance is larger, two high-pressure service pumps are opened simultaneously, can improve transfer efficiency; When soon carrying when complete, close a wherein high-pressure service pump, have to utilize and control its quantity delivered; When wherein a high-pressure service pump needs repairing, by an other high-pressure service pump, can maintain normal conveying needs, and can not affect the work of whole air entraining substation.
Accompanying drawing explanation
Figure 1 shows that the structural representation of the utility model high pressure pumping apparatus.
In figure: 1,2 is two high-pressure service pumps, the 3rd, liquid natural gas pipeline entrance, the 4th, the outlet of liquid natural gas pipeline.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment:
As shown be a kind of high pressure pumping apparatus of CNG automobile secondary gas filling station, comprise liquid natural gas pipeline entrance 3 and liquid natural gas pipeline outlet 4, between described liquid natural gas pipeline entrance 3 and liquid natural gas pipeline outlet 4, be parallel with two high- pressure service pumps 1,2; Two high-pressure service pumps in parallel, using wherein one as conventional high pressure pumping apparatus, using other one as standby high pressure pumping apparatus.When tolerance is larger, two high-pressure service pumps are opened simultaneously, can improve transfer efficiency; When soon carrying when complete, close a wherein high-pressure service pump, have to utilize and control its quantity delivered; When wherein a high-pressure service pump needs repairing, by an other high-pressure service pump, can maintain normal conveying needs, and can not affect the work of whole air entraining substation
Further, in order more to distribute the power resource of high-pressure service pump rationally, the maximum amount of saving energy, the power of described high-pressure service pump 1 is less than the power of high-pressure service pump 2, two high-pressure service pumps wherein one be high-power, be for example 2KW or 3KW; Other one is lower powered, for example, be 1KW or 1.5KW.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. a high pressure pumping apparatus for CNG automobile secondary gas filling station, is characterized in that comprising liquid natural gas pipeline entrance and the outlet of liquid natural gas pipeline, between described liquid natural gas pipeline entrance and the outlet of liquid natural gas pipeline, is parallel with two high-pressure service pumps; The power setting of described two high-pressure service pumps is one high and one low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320388313.XU CN203517306U (en) | 2013-06-28 | 2013-06-28 | High-pressure pump device of gas filling substation of CNG (Compressed Natural Gas) car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320388313.XU CN203517306U (en) | 2013-06-28 | 2013-06-28 | High-pressure pump device of gas filling substation of CNG (Compressed Natural Gas) car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203517306U true CN203517306U (en) | 2014-04-02 |
Family
ID=50376237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320388313.XU Expired - Fee Related CN203517306U (en) | 2013-06-28 | 2013-06-28 | High-pressure pump device of gas filling substation of CNG (Compressed Natural Gas) car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203517306U (en) |
-
2013
- 2013-06-28 CN CN201320388313.XU patent/CN203517306U/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: 20140402 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |