CN103292155A - High-pressure pump device of CNG (Compressed Natural Gas) vehicle fueling sub-station - Google Patents
High-pressure pump device of CNG (Compressed Natural Gas) vehicle fueling sub-station Download PDFInfo
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- CN103292155A CN103292155A CN 201310272955 CN201310272955A CN103292155A CN 103292155 A CN103292155 A CN 103292155A CN 201310272955 CN201310272955 CN 201310272955 CN 201310272955 A CN201310272955 A CN 201310272955A CN 103292155 A CN103292155 A CN 103292155A
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Abstract
The invention discloses a high-pressure pump device of a CNG (Compressed Natural Gas) vehicle fueling sub-station. The high-pressure pump device comprises a liquid natural gas pipeline inlet and a liquid natural gas pipeline outlet, wherein two high-pressure pumps are connected in parallel between the liquid natural gas pipeline inlet and the liquid natural gas pipeline outlet. The high-pressure pump device disclosed by the invention comprises the two high-pressure pumps which are connected in parallel, wherein one high-pressure pump is taken as a commonly used high-pressure pump device, and the other high-pressure pump is taken as a spare high-pressure pump device. When the gas flow is large, the two high-pressure pumps are switched on simultaneously so as to improve the delivery efficiency; when the delivery is almost finished, one high-pressure pump is switched off so as to be beneficial to the control on the delivery volume; when one high-pressure pump needs maintenance, the needs of normal delivery can be met through the other high-pressure pump, and the work of the whole fueling sub-station cannot be affected.
Description
Technical field
The present invention relates to the natural gas technical field, particularly relate to a kind of high pressure pumping apparatus of CNG automobile secondary gas filling station.
Background technique
The CNG gas station refers to provide to gas-fueled vehicles (Natural Gas Vehicle) and large-scale CNG substation car with compressed natural gas (CNG) form the place of fuel.
After CNG substation trailer arrives the CNG air entraining substation, by ready-packaged joint high pressure feed liquor flexible pipe, high pressure return flexible hose, control tracheae bundle, the CNG high pressure flexible pipe of giving vent to anger is connected with hydraulic pressure substation prying body.System connects the back that finishes and starts hydraulic pressure substation prying body or monitor hydraulic system pressure when low in the PLC control system, high-pressure hydraulic pump is started working, the 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 a steel cylinder, guarantee that gas pressure remains on 20-22Mpa in the trailer steel cylinder of CNG substation, CNG gives vent to anger after flexible pipe enters substation prying body knock out drum through the CNG high pressure by the steel cylinder air outlet, is delivered to the CNG filling machine through high-voltage tube and gives the aerating of CNG fuel automobile.
Domestic most of cities can be selected the different high-pressure service pump of power for use according to the size of scale when building air entraining substation now, and its power remains unchanged, and its deficiency is to work as the rock gas consumption after a little while, and more powerful high-pressure service pump is not easy to control its quantity delivered; When large usage quantity, the transporting velocity of the high-pressure service pump of smaller power is slow excessively.
Summary of the invention
The objective of the invention is at the technological deficiency that exists in the prior art, and a kind of high pressure pumping apparatus of CNG automobile secondary gas filling station is provided.
For realizing that the technological scheme that purpose of the present invention adopts is: a kind of high pressure pumping apparatus of CNG automobile secondary gas filling station, it is characterized in that comprising the outlet of liquid natural gas pipeline entrance and liquid natural gas pipeline, be parallel with two high-pressure service pumps between described liquid natural gas pipeline entrance and the outlet of liquid natural gas pipeline.
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 invention comprises the high-pressure service pump of two parallel connections, with wherein one as high pressure pumping apparatus commonly used, with other one as standby high pressure pumping apparatus.When tolerance is big, two high-pressure service pumps are opened simultaneously, can improve transfer efficiency; When soon carrying when finishing, close wherein high-pressure service pump, its quantity delivered of the control of utilization is then arranged; When wherein a high-pressure service pump needs repairing, can keep normal conveying needs by an other high-pressure service pump, and can not influence the work of whole air entraining substation.
Description of drawings
Figure 1 shows that the structural representation of high pressure pumping apparatus of the present invention.
Among the 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 present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
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, be parallel with two high- pressure service pumps 1,2 between described liquid natural gas pipeline entrance 3 and the liquid natural gas pipeline outlet 4; The high-pressure service pump of two parallel connections, with wherein one as high pressure pumping apparatus commonly used, with other one as standby high pressure pumping apparatus.When tolerance is big, two high-pressure service pumps are opened simultaneously, can improve transfer efficiency; When soon carrying when finishing, close wherein high-pressure service pump, its quantity delivered of the control of utilization is then arranged; When wherein a high-pressure service pump needs repairing, can keep normal conveying needs by an other high-pressure service pump, and can not influence 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, namely two high-pressure service pumps wherein one be high-power, for example be 2KW or 3KW; Other one is lower powered, for example is 1KW or 1.5KW.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. the high pressure pumping apparatus of a CNG automobile secondary gas filling station is characterized in that comprising the outlet of liquid natural gas pipeline entrance and liquid natural gas pipeline, is parallel with two high-pressure service pumps between described liquid natural gas pipeline entrance and the outlet of liquid natural gas pipeline.
2. the high pressure pumping apparatus of a kind of CNG automobile secondary gas filling station according to claim 1 is characterized in that the power of described high-pressure service pump is less than the power of high-pressure service pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310272955 CN103292155A (en) | 2013-06-28 | 2013-06-28 | High-pressure pump device of CNG (Compressed Natural Gas) vehicle fueling sub-station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310272955 CN103292155A (en) | 2013-06-28 | 2013-06-28 | High-pressure pump device of CNG (Compressed Natural Gas) vehicle fueling sub-station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103292155A true CN103292155A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310272955 Pending CN103292155A (en) | 2013-06-28 | 2013-06-28 | High-pressure pump device of CNG (Compressed Natural Gas) vehicle fueling sub-station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103292155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332047A (en) * | 2017-12-28 | 2018-07-27 | 天津良华新能源科技有限公司 | A kind of hydraulic substation |
-
2013
- 2013-06-28 CN CN 201310272955 patent/CN103292155A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332047A (en) * | 2017-12-28 | 2018-07-27 | 天津良华新能源科技有限公司 | A kind of hydraulic substation |
| CN108332047B (en) * | 2017-12-28 | 2023-09-19 | 天津良华新能源科技股份有限公司 | Hydraulic substation |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |