CN203395579U - Exhausted natural gas recycling device - Google Patents
Exhausted natural gas recycling device Download PDFInfo
- Publication number
- CN203395579U CN203395579U CN201320499520.2U CN201320499520U CN203395579U CN 203395579 U CN203395579 U CN 203395579U CN 201320499520 U CN201320499520 U CN 201320499520U CN 203395579 U CN203395579 U CN 203395579U
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- China
- Prior art keywords
- gas
- valve body
- natural gas
- recycling device
- filling gun
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- Expired - Fee Related
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Abstract
The utility model discloses an exhausted natural gas recycling device, belonging to the technical field of filling natural gas. The device comprises a valve body, a gas filling gun and a gas filling machine, wherein a valve joint which is connected with the gas filling gun is arranged on the valve body, the gas filling machine is connected with the gas filling gun through a gas exhaust pipeline, the valve body is a three-position control valve body, one valve joint of the valve body is connected with a low-pressure gas storage device by a recycling pipeline. According to the exhausted natural gas recycling device, the three-position control valve body is arranged, and a residual gas recycling channel is additionally arranged to be connected with a medium-low-pressure storage device or a medium-low-pressure fuel gas pipe network in a city, so that the residual natural gas can be conveyed to a gas storage tank or is used by a user through the recycling channel, obvious economic and environment-friendly benefits are achieved.
Description
Technical field
The utility model relates to rock gas loading technique field, particularly a kind of emptying natural gas recycling device.
Background technique
CNG Filling Station compresses rock gas by pressuring machine, be forced into 20MPa left and right pressure, after filling machine metering, utilizes air filling gun to automobile mounted bottle filling high-pressure natural gas.Air filling gun is provided with one or two level control valve door, is responsible for controlling aerating operation.
When natural gas vehicle refueling is operated, often charge after first compression rock gas, all must emit remaining rock gas in air filling gun pipeline, i.e. pressure release operation, to carry out next step operation.A conventional CNG air entraining substation, one day can be to approximately 1200 refuelings, and every day, total emission volumn reached 1440L.The significant wastage to the energy is not only in the direct discharge of rock gas, and methane gas is extremely strong greenhouse gases, and directly discharge also can bring potential safety hazard.
Model utility content
In order to solve pressure release operation in current compressed natural gas filling process, cause energy waste and direct exhausting air can bring the problem of potential safety hazard, a kind of emptying natural gas recycling device is now provided.Concrete technological scheme is as follows:
A kind of emptying natural gas recycling device, comprise valve body, air filling gun and filling machine, described valve body is provided with the valve joint being connected with described air filling gun, described filling machine connects described air filling gun by exhaust duct, described valve body is three level control valve bodies, and a valve joint of described valve body connects a low pressure caisson by recovery channel.
Preferably, described recovery channel is provided with one and automatically cuts off switch.
Compared with prior art, a kind of emptying natural gas recycling device that technique scheme provides has the following advantages: by three level control valve bodies are set, and increase by a road residual air recovery approach and be connected with mesolow storage device or city mesolow gas ductwork, remaining rock gas is sent into by this recovery approach to gas holder stores or user uses, had obvious economy, environmental benefit.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the emptying natural gas recycling device structural representation that the utility model provides.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model mode of execution is described in further detail.
As shown in Figure 1, the utility model embodiment provides a kind of emptying natural gas recycling device, comprise valve body 3, air filling gun 8 and filling machine 1, valve body 3 is provided with the valve joint being connected with air filling gun 8, filling machine 1 connects air filling gun 8 by exhaust duct 2, valve body 3 is three level control valve bodies, and a valve joint of valve body 3 connects a low pressure caisson 6 by recovery channel 5.Recovery channel 5 is provided with one and automatically cuts off switch 4, for stoping the rock gas of recovery to refund air filling gun head.
When carrying out natural gas operation, the aerating interface of the air filling gun 8 front end rifle heads that are connected with filling machine 1 is connected with vehicle-mounted bottle 7 fillers, opens vehicle-mounted bottle 7 suction port ball valves.Now, operate three level control valve doors 3, open aerating passage, add gas cylinder 7 and be communicated with high-pressure natural gas supply loop, through filling machine 1, to vehicle-mounted bottle 7, add rock gas, the interior gas pressure of vehicle-mounted bottle 7 raises gradually.When vehicle-mounted bottle 7 internal pressures reach institute's required value, close vehicle-mounted bottle 7 suction port ball valves, now vehicle-mounted bottle aerating path is cut off.Operate three level control valve doors 3 simultaneously, open the recovery loop being connected with storage device, the high-pressure natural gas that is stored in air filling gun head is discharged rapidly, enters into storage device 6 and stores.The emptying rock gas of air filling gun is recycled, and has obvious economy, environmental benefit.
In addition, the automatic cut-out switch 4 on recovery channel 5, plays the effect of an one-way cock, prevents that the rock gas of recovery from refunding to air filling gun head again.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. an emptying natural gas recycling device, comprise valve body, air filling gun and filling machine, described valve body is provided with the valve joint being connected with described air filling gun, described filling machine connects described air filling gun by exhaust duct, it is characterized in that: a valve joint of described valve body connects a low pressure caisson by recovery channel.
2. a kind of emptying natural gas recycling device according to claim 1, is characterized in that, described recovery channel is provided with one and automatically cuts off switch.
3. a kind of emptying natural gas recycling device according to claim 1, is characterized in that, described valve body is three level control valve bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320499520.2U CN203395579U (en) | 2013-08-15 | 2013-08-15 | Exhausted natural gas recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320499520.2U CN203395579U (en) | 2013-08-15 | 2013-08-15 | Exhausted natural gas recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395579U true CN203395579U (en) | 2014-01-15 |
Family
ID=49907111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320499520.2U Expired - Fee Related CN203395579U (en) | 2013-08-15 | 2013-08-15 | Exhausted natural gas recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165267A (en) * | 2014-07-24 | 2014-11-26 | 东莞市新奥车用燃气发展有限公司 | Device and technology for collecting liquefied natural gas (LNG) staying in tank car |
| CN110195818A (en) * | 2019-05-05 | 2019-09-03 | 泉州市新奥交通能源发展有限公司 | A kind of gas combustion automobile refueling system and method |
-
2013
- 2013-08-15 CN CN201320499520.2U patent/CN203395579U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165267A (en) * | 2014-07-24 | 2014-11-26 | 东莞市新奥车用燃气发展有限公司 | Device and technology for collecting liquefied natural gas (LNG) staying in tank car |
| CN110195818A (en) * | 2019-05-05 | 2019-09-03 | 泉州市新奥交通能源发展有限公司 | A kind of gas combustion automobile refueling system and method |
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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: 20140115 Termination date: 20160815 |