CN202452119U - CNG (Compressed Natural Gas) substation compressor with medium-pressure gas pumping function - Google Patents
CNG (Compressed Natural Gas) substation compressor with medium-pressure gas pumping function Download PDFInfo
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- CN202452119U CN202452119U CN2011204937208U CN201120493720U CN202452119U CN 202452119 U CN202452119 U CN 202452119U CN 2011204937208 U CN2011204937208 U CN 2011204937208U CN 201120493720 U CN201120493720 U CN 201120493720U CN 202452119 U CN202452119 U CN 202452119U
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Abstract
The utility model discloses a CNG (Compressed Natural Gas) substation compressor with a medium-pressure gas pumping function, and relates to a natural gas pressurizing device. The CNG substation compressor comprises an air inlet pipeline, a compression device, a medium-pressure gas outlet pipeline and a high-pressure gas outlet pipeline; and an inlet of a compression device is connected with the air inlet pipeline, and an outlet of the compression device is respectively connected with the medium-pressure gas outlet pipeline and the high-pressure gas outlet pipeline. The CNG substation compressor further comprises a medium-pressure gas pumping ball valve for pumping gas; and an inlet of the medium-pressure gas pumping ball valve is connected with the medium-pressure gas outlet pipeline, and an outlet of the medium-pressure gas pumping ball valve is connected with the compression device. According to the CNG substation compressor provided by the utility model, when gas pressure is not enough, the medium-pressure gas pumping ball valve can pump most part of residual gas in the medium-pressure gas outlet pipeline, and the residual gas is sold out through the high-pressure gas outlet pipeline after being pressurized to be at 20 MPa through the compression device. Therefore, with the adoption of the CNG substation compressor provided by the utility model, not only can the residual gas be reduced to the greatest extent, and the operation cost is relatively low; but also the operation time is relatively long, so that a CNG substation has plenty of time for waiting a tank car to supply the gas, and the operation benefit is relatively high.
Description
Technical field
The utility model relates to a kind of natural gas boosting device, relates in particular to a kind of middle CNG substation compressor of getting airway dysfunction of pressing that possesses.
Background technique
Compressed natural gas (Compressed Natural Gas, be called for short CNG) be meant rock gas pressurization back with the stores of gaseous state in container, it is low that it has a cost, high efficiency is pollution-free, characteristics such as convenient safe in utilization.Along with the development of society, CNG has become a kind of optimal automobile-used alternative energy source.
The CNG gas station is meant the place that fuel is provided to gas-fueled vehicles with the form of CNG.The CNG gas station generally is divided into female station and substation, and female station flows to the substation air feed through CNG gas bottle truck (tank car) with CNG, and the substation compressor is externally sold gas after being compressed to CNG more than the 20MPa.But, not enough below existing when existing C NG substation compressor is sold gas:
Existing C NG substation compressor generally comprises compression set, low pressure is sold gas equipment, middle pressure buffer device and high-pressure buffer equipment; Part gas is sold gas equipment through low pressure and is externally sold gas when selling gas, presses buffer device and high-pressure buffer equipment externally to sell gas during another part gas is compressed to through compression set.But for the quality that guarantees CNG with stable, the pressure of the CNG that externally sells must be higher than 20MPa, therefore, when the gas in the high-pressure buffer device is lower than 20MPa, will stop to sell gas.Because compression set can not be with gas supercharging repeatedly, so the gas of high-pressure buffer device also has residual gas (generally remaining about 15MPa) when being lower than 20MPa in the middle pressure damping device.When CNG substation compressor stops externally selling gas because of underpressure; Just need tank car to carry out tonifying Qi, and uncertain factors such as perhaps traffic congestion can appear damaging in transit in tank car, in case above-mentioned factor occurs; Will influence the operating time of CNG substation, thereby reduce the operation profit.
In sum, when existing C NG substation compressor stops to sell gas, be not because there is not gas externally to sell; But because the not enough reason of pressure has overstock a large amount of gas and can not sell, residual gas is more, and not only operation costs are higher; And the operating time is shorter, and the operation profit is lower.
The model utility content
To the defective that exists in the existing technology, the purpose of the utility model is to provide a kind of middle CNG substation compressor of getting airway dysfunction of pressing that possesses.It can be pressurized to pressurized gas with medium pressure gas, thereby reduces residual gas to greatest extent, and not only operation costs are lower, and the operating time is longer, and the operation profit is higher.
For reaching above purpose, the technological scheme that the utility model is taked is: a kind ofly press the CNG substation compressor get airway dysfunction in possessing, comprise admission line, compression set, middle extrusion feed channel and high pressure outlet pipe; The import of said compression set is connected with admission line, extrudes feed channel and high pressure outlet pipe during outlet connects respectively, comprises that also the pressure that is used for extracting gases gets the balloon valve, and its import is connected with middle extrusion feed channel, exports to be connected with compression set.
On the basis of technique scheme; Also comprise air inlet ball valve, middle pressure balloon valve and high pressure gas ball valve; Said admission line is connected with compression set through the air inlet ball valve; Said compression set is connected with middle extrusion feed channel through middle pressure balloon valve, and said compression set is connected with the high pressure outlet pipe through the high pressure gas ball valve.
On the basis of technique scheme, also comprise the gas unidirectional valve, said high pressure gas ball valve is connected with the high pressure outlet pipe through the gas unidirectional valve.
On the basis of technique scheme, also comprise the tee ball valve of T type, it is provided with an import and two outlets, and said import is connected with the air inlet ball valve, and said two outlets connect compression set respectively and middle pressure is got the balloon valve.
On the basis of technique scheme, also comprise the low pressure outlet pipe, said low pressure outlet pipe is connected with admission line.
The beneficial effect of the utility model is:
The utility model is provided with the pressure that is used for extracting gases and gets the balloon valve; When gas pressure is not enough; In press and to get the balloon valve and extrude most residual gas in the feed channel in can extracting, residual gas is pressurized to 20MPa through compression set after the high pressure outlet pipe is sold.Therefore, the utility model not only can reduce residual gas to greatest extent, and operation costs are lower, and the operating time is longer, has time enough and waits for the tank car tonifying Qi, has reduced traveller's loss.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the utility model embodiment's a workflow diagram.
Among the figure: 1-admission line, 11-air inlet ball valve, 12-suction port, 2-low pressure outlet pipe; 21-low pressure air outlet, the 3-compression set extrudes feed channel among the 4-, pressure balloon valve among the 41-; Extrude gas port among the 42-, 5-high pressure outlet pipe, 51-high pressure gas ball valve, 52-high pressure air outlet; Press among the 6-and get balloon valve, 7-gas unidirectional valve, 8-tee ball valve.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further explain.
Referring to Fig. 1, shown in Figure 2, press the CNG substation compressor of getting airway dysfunction to comprise the admission line 1 that is provided with suction port 12, the low pressure outlet pipe 2 that is provided with low pressure air outlet 21, compression set 3 in the possessing among the utility model embodiment, extrude the middle extrusion feed channel 4 of gas port 42 in being provided with and be provided with the high pressure outlet pipe 5 of high pressure air outlet 52.Low pressure outlet pipe 2 is used to sell low-pressure gas, and it is connected with admission line 1.Admission line 1 also is connected with the import of compression set 3, extrudes feed channel 4 and high pressure outlet pipe 5 during the outlet of compression set 3 connects respectively, and middle extrusion feed channel 4 is used to sell medium pressure gas, and high pressure outlet pipe 5 is used to sell pressurized gas.Be provided with the pressure that is used for extracting gases between middle extrusion feed channel 4 and the compression set 3 and get balloon valve 6, the import that middle pressure is got balloon valve 6 is connected with middle extrusion feed channel 4, and outlet is connected with compression set 3.
The middle CNG substation compressor of getting airway dysfunction of pressing that possesses among the utility model embodiment also comprises air inlet ball valve 11, middle pressure balloon valve 41 and high pressure gas ball valve 51.Admission line 1 is connected with compression set 3 through air inlet ball valve 11; Be provided with the tee ball valve 8 of T type between air inlet ball valve 11 and the compression set 3; Tee ball valve 8 is provided with an import and two outlets; Its import is connected with air inlet ball valve 11, and two outlets connect compression set 3 respectively and get balloon valve 6 with middle pressure.Compression set 3 is connected with middle extrusion feed channel 4 through middle pressure balloon valve 41, and compression set 3 also is connected with high pressure outlet pipe 5 through high pressure gas ball valve 51.Be provided with gas unidirectional valve 7 between high pressure outlet pipe 5 and the high pressure gas ball valve 51, gas unidirectional valve 7 is used to limit the gas unidirectional circulation.
Referring to shown in Figure 2, the utility model working procedure is following:
When the tank car air feed, open air inlet ball valve 11, middle pressure balloon valve 41 and high pressure gas ball valve 51, press in closing and get balloon valve 6.Gas in the tank car gets into admission line 1.A part of gas is externally sold gas through low pressure outlet pipe 2 in the admission line 1, and another part gas gets into compression set 3 through air inlet ball valve 11.Compression set 3 increases to gas more than the 20Mpa, and a part of gas after the pressurization extrudes feed channel 4 in getting into through middle pressure balloon valve 41, presses buffer device externally to sell gas in the warp; Another part gas gets into high pressure outlet pipe 5 through high pressure gas ball valve 51 and gas one-way valve 7 successively, externally sells gas through high-pressure buffer equipment.Tank car pressure stops air feed after reducing to 4Mpa.
Untimely when not having tank car or tank car to supply, open high pressure gas ball valve 51 and get balloon valve 6 with middle pressure, close air inlet ball valve 11 and middle pressure balloon valve 41.Middle pressure is got balloon valve 6 residual gas in the middle pressure buffer device is evacuated to compression set 3; Compression set 3 increases to gas more than the 20Mpa; Gas after the supercharging gets into high pressure outlet pipe 5 through high pressure gas ball valve 51 and gas one-way valve 7 successively, externally sells gas through high-pressure buffer equipment.In press the pressure of buffer device to be lower than 4MPa, and the pressure of high-pressure buffer equipment stops to sell gas when being lower than 20MPa.
The utility model not only is confined to above-mentioned preferred forms; Anyone can draw other various forms of products under the enlightenment of the utility model; No matter but on its shape or structure, do any variation; Every have identical with a utility model or akin technological scheme, all within its protection domain.
Claims (5)
1. one kind possesses the middle CNG substation compressor of getting airway dysfunction of pressing, and comprises admission line (1), compression set (3), middle extrusion feed channel (4) and high pressure outlet pipe (5); The import of said compression set (3) is connected with admission line (1); Outlet extrudes feed channel (4) and high pressure outlet pipe (5) in connecting respectively; It is characterized in that: comprise that also the pressure that is used for extracting gases gets balloon valve (6); Its import is connected with middle extrusion feed channel (4), and outlet is connected with compression set (3).
2. as claimed in claim 1ly press the CNG substation compressor get airway dysfunction in possessing; It is characterized in that: also comprise air inlet ball valve (11), middle pressure balloon valve (41) and high pressure gas ball valve (51); Said admission line (1) is connected with compression set (3) through air inlet ball valve (11); Said compression set (3) is connected with middle extrusion feed channel (4) through middle pressure balloon valve (41), and said compression set (3) is connected with high pressure outlet pipe (5) through high pressure gas ball valve (51).
3. as claimed in claim 2ly press the CNG substation compressor get airway dysfunction in possessing, it is characterized in that: also comprise gas unidirectional valve (7), said high pressure gas ball valve (51) is connected with high pressure outlet pipe (5) through gas unidirectional valve (7).
4. as claimed in claim 2ly press the CNG substation compressor get airway dysfunction in possessing; It is characterized in that: the tee ball valve (8) that also comprises the T type; It is provided with an import and two outlets; Said import is connected with air inlet ball valve (11), and said two outlets connect compression set (3) respectively and middle pressure is got balloon valve (6).
5. press the CNG substation compressor get airway dysfunction as the arbitrary claim of claim 1 to 4 is described in possessing, it is characterized in that: also comprise low pressure outlet pipe (2), said low pressure outlet pipe (2) is connected with admission line (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204937208U CN202452119U (en) | 2011-12-02 | 2011-12-02 | CNG (Compressed Natural Gas) substation compressor with medium-pressure gas pumping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204937208U CN202452119U (en) | 2011-12-02 | 2011-12-02 | CNG (Compressed Natural Gas) substation compressor with medium-pressure gas pumping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202452119U true CN202452119U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204937208U Expired - Fee Related CN202452119U (en) | 2011-12-02 | 2011-12-02 | CNG (Compressed Natural Gas) substation compressor with medium-pressure gas pumping function |
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| Country | Link |
|---|---|
| CN (1) | CN202452119U (en) |
Cited By (1)
| 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 |
-
2011
- 2011-12-02 CN CN2011204937208U patent/CN202452119U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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: 20120926 Termination date: 20171202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |