CN204127653U - Reclaim the skid-mounted device of the remaining rock gas of long-tube trailer - Google Patents
Reclaim the skid-mounted device of the remaining rock gas of long-tube trailer Download PDFInfo
- Publication number
- CN204127653U CN204127653U CN201420290913.7U CN201420290913U CN204127653U CN 204127653 U CN204127653 U CN 204127653U CN 201420290913 U CN201420290913 U CN 201420290913U CN 204127653 U CN204127653 U CN 204127653U
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- long
- cut
- tube trailer
- valve
- skid
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- 239000011435 rock Substances 0.000 title claims abstract description 30
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 29
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000003345 natural gas Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Reclaim a skid-mounted device for the remaining rock gas of long-tube trailer, comprising: control unit, low pressure compressor, knock out drum, the first cut-off valve, the second cut-off valve, pressure-detecting device, gas distribution channel; Control unit is electrically connected with low pressure compressor, the first cut-off valve, the second cut-off valve, pressure-detecting device; Described first cut-off valve is for controlling the opening and closing of gas distribution channel, and described low pressure compressor is connected with knock out drum formation Pressure channel, and described second cut-off valve controls the opening and closing of Pressure channel; Described Pressure channel is with gas distribution channel parallel connection and two ends are connected long-tube trailer and high pressure compressor respectively.The skid-mounted device of the remaining rock gas of described recovery long-tube trailer does not need other structures changing existing aerating flow process, only need to add at long-tube trailer and high pressure compressor the rock gas that described skid-mounted device farthest can reclaim long-tube trailer remnants, cost is lower, and effect is better.
Description
Technical field
The utility model relates to CNG aerating field, particularly reclaims the skid-mounted device of the remaining rock gas of long-tube trailer in a kind of CNG automobile air entraining substation.
Background technique
At present, the CNG automobile gas station aerating flow process of domestic construction comprises: CNG (compressed natural gas) long-tube trailer is transported to CNG automobile gas station, utilize sequence control dish and high pressure compressor by natural gas storing in senior middle school's low pressure air cylinder 3, then through CNG filling machine to Natural gas vehicles aerating.And compressor is all one stage of compression (import) or two stage compression (domestic).
But existing CNG long-tube trailer is had an appointment all the time, the rock gas of 600 ~ 700 sides exists in long-tube trailer and can not release, and causes long-tube trailer utilization ratio and reduces by 15% ~ 20%, is unfavorable for the cost of transportation reducing rock gas.
Model utility content
The problem that the utility model solves is to provide a kind of skid-mounted device reclaiming the remaining rock gas of long-tube trailer, and can reclaim rock gas remaining in long-tube trailer completely, cost is lower.
For solving the problem, the utility model embodiment provides a kind of skid-mounted device reclaiming the remaining rock gas of long-tube trailer, comprising: control unit, low pressure compressor, knock out drum, the first cut-off valve, the second cut-off valve, pressure-detecting device, gas distribution channel; Control unit is electrically connected with low pressure compressor, the first cut-off valve, the second cut-off valve, pressure-detecting device; Described first cut-off valve is for controlling the opening and closing of gas distribution channel, and described low pressure compressor is connected with knock out drum formation Pressure channel, and described second cut-off valve controls the opening and closing of Pressure channel; Described Pressure channel is with gas distribution channel parallel connection and two ends are connected long-tube trailer and high pressure compressor respectively.
Optionally, described second cut-off valve is between high pressure compressor and knock out drum.
Optionally, also comprise the 3rd cut-off valve, described 3rd cut-off valve is between long-tube trailer and low pressure compressor.
Optionally, described low pressure compressor is air-cooled or water-cooled piston formula compressor.
Optionally, described low pressure compressor is stage compressor or two stage compressor.
Optionally, described control unit is PLC control system.
Optionally, after pressure-detecting device detects that the air pressure of long-tube trailer is lower than predetermined value, working signal is sent to control unit, control unit is by controlling low pressure compressor, knock out drum, the first cut-off valve, the second cut-off valve, close gas distribution channel, open low pressure compressor, bleed to carry out being compressed to knock out drum in long-tube trailer and carry out voltage stabilizing, to ensure that high pressure compressor inlet pressure is stablized; After pressure-detecting device detects that the air pressure of long-tube trailer is lower than minimum, silence signal is sent to control unit, closes Pressure channel.
Optionally, described predetermined value is 3MPa, and minimum is 0.3MPa.
Optionally, also comprise display unit, described display unit is connected with control unit, can show the force value that pressure-detecting device obtains in real time.
Compared with prior art, the technical program has the following advantages:
The skid-mounted device of the remaining rock gas of described recovery long-tube trailer does not need other structures changing existing aerating flow process, only need to add at long-tube trailer and high pressure compressor the rock gas that described skid-mounted device farthest can reclaim long-tube trailer remnants, cost is lower, and effect is better.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the aerating flow process of the CNG automobile air entraining substation of the utility model embodiment;
Fig. 2 is the structural representation of the skid-mounted device of the remaining rock gas of recovery long-tube trailer of the utility model embodiment.
Embodiment
In existing aerating flow process, after long-tube trailer drops to about 2.5 ~ 3MPa gradually by initial pressure 20MPa, high pressure compressor by compression than the pressure that restricts export do not reach the 20MPa of design, therefore will change long-tube trailer, long-tube trailer has the rock gas residue of 3MPa.In order to solve the problem, prior art is improved for high pressure compressor.And inventor is through research, provide a kind of skid-mounted device reclaiming the remaining rock gas of long-tube trailer, cost is lower, also can reclaim rock gas remaining in long-tube trailer, can not change the structure of high pressure compressor simultaneously.
Below in conjunction with accompanying drawing, by specific embodiment, clear, complete description is carried out to the technical solution of the utility model.
Please refer to Fig. 1, for the schematic diagram of the aerating flow process of the CNG automobile air entraining substation of the utility model embodiment, comprise: CNG long-tube trailer 1 is transported to CNG automobile gas station, the skid-mounted device 2 of the remaining rock gas of described recovery long-tube trailer is utilized to be connected with high pressure compressor 3, natural gas storing in the air cylinder group 4 of senior middle school's low pressure, is then given Natural gas vehicles 6 aerating through CNG filling machine 5 by high pressure compressor 3.
Please refer to Fig. 2, the structural representation of the skid-mounted device of the remaining rock gas of the recovery long-tube trailer for the utility model embodiment, comprising: control unit 10, low pressure compressor 20, knock out drum 30, first cut-off valve 40, second cut-off valve 50, the 3rd cut-off valve 60, pressure-detecting device 70, gas distribution channel 80; Control unit 10 is electrically connected with low pressure compressor 20, first cut-off valve 40, second cut-off valve 50, the 3rd cut-off valve 60, pressure-detecting device 70; Described low pressure compressor 20 is connected with knock out drum 30 formation Pressure channel, described Pressure channel is with gas distribution channel 80 parallel connection and two ends are connected long-tube trailer 1 and high pressure compressor 3 respectively, described first cut-off valve 40 is for controlling the opening and closing of gas distribution channel, described second cut-off valve 50 is between high pressure compressor 3 and knock out drum 30, and described 3rd cut-off valve 60 is between long-tube trailer 1 and low pressure compressor 20.
In the present embodiment, described low pressure compressor is air-cooled or water-cooled piston formula compressor.In other embodiments, described low pressure compressor also can be other low pressure compressors.
Described low pressure compressor is stage compressor or two stage compressor, because two stage compressor cost is lower, and compresses less demanding, therefore adopts two stage compressor in the present embodiment.
In the present embodiment, described control unit is PLC control system.The timer be made up of semiconductor circuit in PLC inside and the clock pulse timing produced by crystal oscillator, timing accuracy is high, and flexibility is large, and timing is not affected by environment.Its inner specific counter in addition, can realize the step motion control to manufacturing mechanism.And PLC adopts microelectronic technology, inner switch motion has come by contactless semiconductor circuit, and the life-span is long, and reliability is high, and can be shown to operator at any time, the practice condition of timely supervisory control program, for field adjustable and maintenance provide convenient.
In other embodiments, the skid-mounted device of the remaining rock gas of described recovery long-tube trailer also has display unit, and described display unit is connected with PLC control system, can show the force value that pressure-detecting device obtains in real time.
When high pressure compressor is when bleeding, gas distribution channel is in opening state, after pressure-detecting device detects that the air pressure of long-tube trailer is lower than predetermined value, working signal is sent to control unit, control unit is by controlling low pressure compressor, knock out drum, the first cut-off valve, the second cut-off valve, the 3rd cut-off valve, close gas distribution channel, open Pressure channel, open low pressure compressor simultaneously, bleed to carry out being compressed to knock out drum in long-tube trailer and carry out voltage stabilizing, to ensure that high pressure compressor inlet pressure is stablized; After pressure-detecting device detects that the air pressure of long-tube trailer is lower than minimum, silence signal is sent to control unit, closes Pressure channel.The utility model can carry out voltage stabilizing owing to only need utilize in knock out drum, and does not need to change high pressure compressor, and cost is low, and almost the rock gas of long-tube trailer remnants can be reclaimed completely, to improve the utilization ratio of long-tube trailer, reduce natural gas transportation cost, increase economic benefit.
In the present embodiment, described predetermined value is 3MPa, and minimum is 0.3MPa.In other embodiments, described predetermined value and minimum also can be other suitable values.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solutions of the utility model; therefore; every content not departing from technical solutions of the utility model; the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all belong to the protection domain of technical solutions of the utility model.
Claims (9)
1. reclaim a skid-mounted device for the remaining rock gas of long-tube trailer, it is characterized in that, comprising: control unit, low pressure compressor, knock out drum, the first cut-off valve, the second cut-off valve, pressure-detecting device, gas distribution channel; Control unit is electrically connected with low pressure compressor, the first cut-off valve, the second cut-off valve, pressure-detecting device; Described first cut-off valve is for controlling the opening and closing of gas distribution channel, and described low pressure compressor is connected with knock out drum formation Pressure channel, and described second cut-off valve controls the opening and closing of Pressure channel; Described Pressure channel is with gas distribution channel parallel connection and two ends are connected long-tube trailer and high pressure compressor respectively.
2. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 1, it is characterized in that, described second cut-off valve is between high pressure compressor and knock out drum.
3. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 1, it is characterized in that, also comprise the 3rd cut-off valve, described 3rd cut-off valve is between long-tube trailer and low pressure compressor.
4. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 1, it is characterized in that, described low pressure compressor is air-cooled or water-cooled piston formula compressor.
5. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 1, it is characterized in that, described low pressure compressor is stage compressor or two stage compressor.
6. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 1, it is characterized in that, described control unit is PLC control system.
7. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 1, it is characterized in that, after pressure-detecting device detects that the air pressure of long-tube trailer is lower than predetermined value, working signal is sent to control unit, control unit, by controlling low pressure compressor, knock out drum, the first cut-off valve, the second cut-off valve, is closed gas distribution channel, is opened low pressure compressor, bleed to carry out being compressed to knock out drum in long-tube trailer and carry out voltage stabilizing, to ensure that high pressure compressor inlet pressure is stablized; After pressure-detecting device detects that the air pressure of long-tube trailer is lower than minimum, silence signal is sent to control unit, closes Pressure channel.
8. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 7, it is characterized in that, described predetermined value is 3MPa, and minimum is 0.3MPa.
9. the skid-mounted device reclaiming the remaining rock gas of long-tube trailer as claimed in claim 1, it is characterized in that, also comprise display unit, described display unit is connected with control unit, can show the force value that pressure-detecting device obtains in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290913.7U CN204127653U (en) | 2014-05-30 | 2014-05-30 | Reclaim the skid-mounted device of the remaining rock gas of long-tube trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290913.7U CN204127653U (en) | 2014-05-30 | 2014-05-30 | Reclaim the skid-mounted device of the remaining rock gas of long-tube trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127653U true CN204127653U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420290913.7U Expired - Fee Related CN204127653U (en) | 2014-05-30 | 2014-05-30 | Reclaim the skid-mounted device of the remaining rock gas of long-tube trailer |
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|---|---|
| CN (1) | CN204127653U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237637A (en) * | 2018-11-29 | 2020-06-05 | 苏州工业园区可伦坡系统集成科技有限公司 | Be used for gas supply equipment air cylinder to change detection device |
| CN112303483A (en) * | 2019-12-13 | 2021-02-02 | 安瑞科(廊坊)能源装备集成有限公司 | Air leakage device and air leakage method of hydrogen trailer |
| CN114321707A (en) * | 2020-10-10 | 2022-04-12 | 中国石化工程建设有限公司 | Method and system for unloading hydrogen from long-tube trailer to hydrogen filling station |
| US11535207B2 (en) | 2018-11-24 | 2022-12-27 | Change Energy Services | Compressed-gas distribution associated with vehicle |
| CN116428512A (en) * | 2023-03-06 | 2023-07-14 | 郑州大学 | An integrated mobile hydrogen refueling station |
-
2014
- 2014-05-30 CN CN201420290913.7U patent/CN204127653U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11535207B2 (en) | 2018-11-24 | 2022-12-27 | Change Energy Services | Compressed-gas distribution associated with vehicle |
| CN111237637A (en) * | 2018-11-29 | 2020-06-05 | 苏州工业园区可伦坡系统集成科技有限公司 | Be used for gas supply equipment air cylinder to change detection device |
| CN112303483A (en) * | 2019-12-13 | 2021-02-02 | 安瑞科(廊坊)能源装备集成有限公司 | Air leakage device and air leakage method of hydrogen trailer |
| CN114321707A (en) * | 2020-10-10 | 2022-04-12 | 中国石化工程建设有限公司 | Method and system for unloading hydrogen from long-tube trailer to hydrogen filling station |
| CN116428512A (en) * | 2023-03-06 | 2023-07-14 | 郑州大学 | An integrated mobile hydrogen refueling station |
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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: 20150128 |