CN204005212U - A kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering - Google Patents
A kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering Download PDFInfo
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- CN204005212U CN204005212U CN201420434845.7U CN201420434845U CN204005212U CN 204005212 U CN204005212 U CN 204005212U CN 201420434845 U CN201420434845 U CN 201420434845U CN 204005212 U CN204005212 U CN 204005212U
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- valve
- pipeline
- liquid
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- flowmeter
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Abstract
The utility model relates to a kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering, is made up of liquid feeding pipeline, liquid return pipe road, return line, compressed air line and control gear.The utility model adopts skid structure, collection precooling, metering, safety are diffused, emergency cut-off, and measure in one with return-air, the liquid filler that has solved current LNGV (liquefied natural gas vehicle) liquid feeding measures without return-air, causes the gas in vehicle steel cylinder just to flow in gas station without trade settlement, the problem that causes car owner's cost to increase, this apparatus structure compactness, conveniently moving, investment cost is low, strong adaptability, user is easy to use.
Description
Technical field
The utility model belongs to automobile fuel gas loading technique field, particularly a kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering.
Background technique
At present for the liquid filler of LNGV (liquefied natural gas vehicle) liquid feeding generally adopts the form of liquid feeding metering without the metering of going back, its inside comprises that precooling, metering, safety are diffused, emergency cut-off etc.Wherein the major defect of existence is, can cause the gas in vehicle steel cylinder just to flow in gas station without trade settlement without return-air metering, makes the increase of car car owner cost.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering, its have compact structure, easy to use, invest the features such as little.
The utility model solves its technical problem and takes following technological scheme to realize:
With a LNGV (liquefied natural gas vehicle) liquid filler for return-air metering, formed by liquid feeding pipeline, liquid return pipe road, return line, compressed air line and control gear;
Wherein, liquid feeding pipeline comprises feed liquor interface, stop valve a, filter, flowmeter a, pneumatic cut-off valve a and the liquid feeding rifle of being connected successively by pipeline, on the liquid feeding pipeline between flowmeter a and pneumatic cut-off valve a, be provided with pressure gauge, pressure transducer and safety valve a, on the liquid feeding pipeline between liquid feeding rifle and pneumatic cut-off valve a, be provided with safety valve b;
Wherein, liquid return pipe road comprises slotting gun platform, one-way valve b, stop valve b and the liquid return hole of being connected successively by pipeline, between the pipeline of the pressure gauge left side of the pipeline between vacuum check valve a and the stop valve b on liquid return pipe road and liquid feeding pipeline, is connected with pneumatic cut-off valve b by pipeline;
Wherein, return line comprises the return-air rifle, one-way valve a, the flowmeter b that are connected successively by pipeline, the pipeline communication in stop valve b left side in the right side pipeline of flowmeter b and liquid return pipe road;
Wherein, compressed air line comprises the compressed air inlet and the air gun that connect by pipeline, and compressed air line is provided with two branch roads in parallel, and two parallel branches are connected with pneumatic cut-off valve a and pneumatic cut-off valve b by solenoid valve a, solenoid valve b respectively;
Wherein, control gear is the control cabinet with liquid crystal display panel, the liquid crystal display panel of this control cabinet is connected with flowmeter a, flowmeter b and pressure transducer by wire respectively, show each relevant image data, this control cabinet also includes solenoid valve a control switch and solenoid valve b control switch, opening/closing by the each solenoid valve of switch control.
And described pneumatic cut-off valve model is DJ661F-40P, diameter is 25mm; Safety valve model is DA21F-40P, and diameter is 10mm; It is CMF100M306NRAPMZCX_20179 and CMF025M300NRAPMZCX_20179 that flowmeter adopts model, and peak rate of flow is 200 liters of LNG Liquefied natural gas per minute; Electromagnetic valve model is DN8220V; Pressure transducer model is 0-2.5Mpa.
Advantage of the present utility model and good effect are:
The utility model adopts skid structure, and collection precooling, metering, safety are diffused, emergency cut-off, and measure in one with return-air, compact structure, and conveniently moving, investment cost is low, strong adaptability, user is easy to use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is implemented to be further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
With a LNGV (liquefied natural gas vehicle) liquid filler for return-air metering, as shown in Figure 1, formed by liquid feeding pipeline, liquid return pipe road, return line, compressed air line and control gear;
Wherein, liquid feeding pipeline comprises feed liquor interface 1, stop valve a2, filter 3, flowmeter a4, pneumatic cut-off valve a9 and the liquid feeding rifle 11 of being connected successively by pipeline, on the liquid feeding pipeline between flowmeter a and pneumatic cut-off valve a, be provided with pressure gauge 5, pressure transducer 6 and safety valve a8, on the liquid feeding pipeline between liquid feeding rifle and pneumatic cut-off valve a, be provided with safety valve b10;
Wherein, liquid return pipe road comprises slotting gun platform 13, one-way valve b12, stop valve b22 and the liquid return hole 21 of being connected successively by pipeline, between the pipeline of the pressure gauge left side of the pipeline between vacuum check valve a and the stop valve b on liquid return pipe road and liquid feeding pipeline, is connected with Pneumatic vacuum cut-off valve b7 by pipeline;
Wherein, return line comprises the return-air rifle 14, one-way valve a16, the flowmeter b17 that are connected successively by pipeline, the pipeline communication in stop valve b left side in the right side pipeline of flowmeter b and liquid return pipe road;
Wherein, compressed air line comprises the compressed air inlet 20 and the air gun 15 that connect by pipeline, and compressed air line is provided with two branch roads in parallel and is connected with pneumatic cut-off valve a and pneumatic cut-off valve b by solenoid valve a18, solenoid valve b19 respectively;
Wherein, control gear is the control cabinet with liquid crystal display panel, the liquid crystal display panel of this control cabinet is connected with flowmeter a, flowmeter b and pressure transducer by wire respectively, show each relevant image data, this control cabinet also includes solenoid valve a control switch and solenoid valve b control switch, operator are according to the each display related data on display screen, and opening/closing by the each solenoid valve of switch control realizes the mutual switching of different pipelines.
In concrete enforcement of the present utility model, described pneumatic cut-off valve model is DJ661F-40P, and diameter is 25mm; Safety valve model is DA21F-40P, and diameter is 10mm; It is CMF100M306NRAPMZCX_20179 and CMF025M300NRAPMZCX_20179 that flowmeter adopts model, and peak rate of flow is 200 liters of LNG Liquefied natural gas per minute; Electromagnetic valve model is DN8 220V; Pressure transducer model is 0-2.5Mpa.
Working procedure of the present utility model:
Liquid feeding is prepared (precooling) stage, now pneumatic cut-off valve b opens, pneumatic cut-off valve a closes, and LNG Liquefied natural gas enters mass flowmenter from liquid entering hole, liquid flowing valve, flows through pneumatic cut-off valve a, return-air (liquid) valve, gets back to return-air (liquid) mouthful.In the time that flowmeter spreads out of the satisfied setting of temperature signal, operator manually finish precooling process, prepare at any time liquid feeding, and meanwhile, operator's hand reset metering shows data.Liquid entering hole is connected with storage tank respectively with liquid return hole.
The liquid feeding stage, return-air is robbed and inserted on vehicle liquefied natural gas steel cylinder, gas in steel cylinder can carry out return-air metering by one-way valve a, flowmeter b, in the time that the pressure in steel cylinder meets setting value, operator open pneumatic cut-off valve a, pneumatic cut-off valve b closes, LNG Liquefied natural gas enters mass flowmenter from liquid entering hole, liquid flowing valve, flows through pneumatic cut-off valve a, liquid feeding rifle, and liquid feeding rifle is connected with automobile steel cylinder.
Liquid feeding is complete, and liquid feeding rifle is inserted into slotting gun platform, and LNG Liquefied natural gas is got back to return-air (liquid) mouthful by one-way valve.
Liquid feeding pipeline arranges safety valve, and in the time that charging line loine pressure reaches setting value, safety valve is opened and discharged, and ensures security of system.Utilize air gun can blow the frost being attached on pipeline off.
Claims (2)
1. the LNGV (liquefied natural gas vehicle) liquid filler with return-air metering, is characterized in that: be made up of liquid feeding pipeline, liquid return pipe road, return line, compressed air line and control gear;
Wherein, liquid feeding pipeline comprises feed liquor interface, stop valve a, filter, flowmeter a, pneumatic cut-off valve a and the liquid feeding rifle of being connected successively by pipeline, on the liquid feeding pipeline between flowmeter a and pneumatic cut-off valve a, be provided with pressure gauge, pressure transducer and safety valve a, on the liquid feeding pipeline between liquid feeding rifle and pneumatic cut-off valve a, be provided with safety valve b;
Wherein, liquid return pipe road comprises slotting gun platform, one-way valve b, stop valve b and the liquid return hole of being connected successively by pipeline, between the pipeline of the pressure gauge left side of the pipeline between vacuum check valve a and the stop valve b on liquid return pipe road and liquid feeding pipeline, is connected with pneumatic cut-off valve b by pipeline;
Wherein, return line comprises the return-air rifle, one-way valve a, the flowmeter b that are connected successively by pipeline, the pipeline communication in stop valve b left side in the right side pipeline of flowmeter b and liquid return pipe road;
Wherein, compressed air line comprises the compressed air inlet and the air gun that connect by pipeline, and compressed air line is provided with two branch roads in parallel, and two parallel branches are connected with pneumatic cut-off valve a and pneumatic cut-off valve b by solenoid valve a, solenoid valve b respectively;
Wherein, control gear is the control cabinet with liquid crystal display panel, the liquid crystal display panel of this control cabinet is connected with flowmeter a, flowmeter b and pressure transducer by wire respectively, show each relevant image data, this control cabinet also includes solenoid valve a control switch and solenoid valve b control switch, opening/closing by the each solenoid valve of switch control.
2. the LNGV (liquefied natural gas vehicle) liquid filler with return-air metering according to claim 1, is characterized in that: described pneumatic cut-off valve model is DJ661F-40P, and diameter is 25mm; Safety valve model is DA21F-40P, and diameter is 10mm; It is CMF100M306NRAPMZCX_20179 and CMF025M300NRAPMZCX_20179 that flowmeter adopts model, and peak rate of flow is 200 liters of LNG Liquefied natural gas per minute; Electromagnetic valve model is DN8 220V; Pressure transducer model is 0-2.5Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434845.7U CN204005212U (en) | 2014-07-31 | 2014-07-31 | A kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434845.7U CN204005212U (en) | 2014-07-31 | 2014-07-31 | A kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204005212U true CN204005212U (en) | 2014-12-10 |
Family
ID=52045213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420434845.7U Expired - Fee Related CN204005212U (en) | 2014-07-31 | 2014-07-31 | A kind of LNGV (liquefied natural gas vehicle) liquid filler with return-air metering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204005212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020579A (en) * | 2015-08-05 | 2015-11-04 | 陕西瑞科特种设备技术有限公司 | Single-flow double-metering liquefied natural gas filling machine |
| CN105020577A (en) * | 2015-07-29 | 2015-11-04 | 重庆耐德能源装备集成有限公司 | LNG unloading method capable of achieving accurate measurement and LNG unloading measurement device |
-
2014
- 2014-07-31 CN CN201420434845.7U patent/CN204005212U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020577A (en) * | 2015-07-29 | 2015-11-04 | 重庆耐德能源装备集成有限公司 | LNG unloading method capable of achieving accurate measurement and LNG unloading measurement device |
| CN105020577B (en) * | 2015-07-29 | 2017-08-15 | 重庆耐德能源装备集成有限公司 | The LNG of accurate measurement unloads method and LNG unloads metering device |
| CN105020579A (en) * | 2015-08-05 | 2015-11-04 | 陕西瑞科特种设备技术有限公司 | Single-flow double-metering liquefied natural gas filling machine |
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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: 20141210 Termination date: 20160731 |