CN100489372C - Liquefied natural gas automatic pressure regulation and gasification and charging device - Google Patents
Liquefied natural gas automatic pressure regulation and gasification and charging device Download PDFInfo
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- CN100489372C CN100489372C CNB2005100484161A CN200510048416A CN100489372C CN 100489372 C CN100489372 C CN 100489372C CN B2005100484161 A CNB2005100484161 A CN B2005100484161A CN 200510048416 A CN200510048416 A CN 200510048416A CN 100489372 C CN100489372 C CN 100489372C
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- lng
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Abstract
The invention discloses an automatic pressure-regulating gasification aerating device of liquid natural gas in the compressing natural gas car and aerating technique domain, which comprises the following parts: liquid natural gas container, low-temperature electromagnetic valve, liquid natural gas high pressure plunger pump, high pressure air-heated carburetor, compressing natural gas container, pressure sensor, electronic pressure regulator, unloading electromagnetic valve, leakage vital energy and so on. The entire device can be assembled by mode pattern and set on a general chassis, which keeps the pressure of compressing natural gas container between 20 and 25 MPa by electronic pressure regulator automatically. The device contains the following advantages: simple craft flow process, safe, reliable, unloading automatically, precooling, keeping pressure.
Description
Technical field
The present invention relates to utilize LNG Liquefied natural gas to be automobile with compressed natural gas aerating technical field, especially a kind of liquefied natural gas charging device with automatic pressure regulation and gasification functions.
Background technique
LNG Liquefied natural gas is the high-purity clean fuel that stores cold energy, and not only convenient transportation is not limited by steam line, and can to utilize the temperature inversion of ambient air in specific equipment be highly purified compressed natural gas.And the automobile with compressed natural gas technology maturation helps environmental protection and saves gasoline, and it is more to promote employing.Need manually look the pump body temperature situation before the each startup of present existing liquefaction automobile with compressed natural gas aerator cryopump is unloaded exhaust and precooling, trivial operations; Though the safety protection function of superpressure autostop is arranged, but can not keep required 16-20MPa filling pressure automatically, and installs that the basis instrument of each single devices is numerous and diverse, the engineering work load of building a station is big, the cycle long, investment is big.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of liquefied natural gas charging device with automatic pressure regulation and gasification functions is provided, this device flow process is simple, safe and reliable, unload exhaust and precooling automatically and keep specified filling pressure, easy and simple to handle, the engineering work load of building a station is little, the cycle is short, investment is little.The present invention seeks to realize like this: mainly be formed by connecting by liquefied natural gas (LNG) tank, low-temperature solenoid valve, LNG Liquefied natural gas high-pressure plunger pump, unloading solenoid valve, LNG Liquefied natural gas high pressure air-heating type gasifier, compressed natural gas storage tank, pressure transducer, electronic pressure controller, filling machine.
Liquefied natural gas (LNG) tank is the double-level-metal vacuum insulation vessel, goes up for outer jar explosion-proof device is installed, and on the interior jar of gas phase pipeline safety valve and atmospheric valve and pressure of storage tank table is installed; Storage tank liquid-level meter and storage tank boost control are housed between gas phase pipeline and the liquid phase pipeline; The LNG Liquefied natural gas high-pressure plunger pump is installed on the liquid phase pipeline of liquefied natural gas (LNG) tank by low-temperature solenoid valve, the exhaust line of the unloading solenoid valve of LNG Liquefied natural gas high-pressure plunger pump is communicated with the gas phase of liquefied natural gas (LNG) tank, and the liquid outlet of LNG Liquefied natural gas high-pressure plunger pump connects LNG Liquefied natural gas high pressure air-heating type gasifier, compressed natural gas storage tank and filling machine successively; Pressure transducer is installed on the connecting line of compressed natural gas storage tank, and the power circuit of the InfoLine of pressure transducer, low-temperature solenoid valve circuit and LNG Liquefied natural gas high-pressure plunger pump and unloading solenoid valve thereof all inserts electronic pressure controller.Electronic pressure controller regulation and control pressure range is 16-25MPa, and the time of unloading and precooling can be adjusted, and whole device can be assembled by modular type, also can be fixed on the total cartridge chassis.
When liquefied natural gas charging device with automatic pressure regulation and gasification functions used, liquefied natural gas (LNG) tank had filled LNG Liquefied natural gas.Start electronic pressure controller, at first automatically, open the unloading solenoid valve several seconds, make the unloading of LNG Liquefied natural gas high-pressure plunger pump, thereafter low-temperature solenoid valve is open-minded, the precooling of LNG Liquefied natural gas high-pressure plunger pump topping up, last motor power is opened running, and the LNG Liquefied natural gas in the storage tank is pumped to gasification expansion in the LNG Liquefied natural gas high pressure air-heating type gasifier, becomes compressed natural gas and enters the compressed natural gas storage tank.Electronic pressure controller is according to the pressure information of pressure transducer feedback, when reaching the 25MPa high pressure, automatically close low-temperature solenoid valve and LNG Liquefied natural gas high-pressure plunger pumping source simultaneously, stop to pump into liquefied natural gas gasifying to the high pressure air-heating type gasifier in liquefied natural gas (LNG) tank, the pressure of compressed natural gas storage tank tops out thereupon.When filling machine was given the automobile with compressed natural gas aerating, compressed natural gas storage tank internal air pressure reduced gradually.Electronic pressure controller is according to the pressure information of pressure transducer feedback, when being lower than 16MPa, at first automatically, open the unloading solenoid valve several seconds, make the unloading of LNG Liquefied natural gas high-pressure plunger pump, thereafter controlling the power supply of low-temperature solenoid valve and LNG Liquefied natural gas high-pressure plunger pump automatically delays time open-minded in succession, LNG Liquefied natural gas in the liquefied natural gas (LNG) tank is pumped to gasification expansion in the LNG Liquefied natural gas high pressure air-heating type gasifier again, boost to the inflation of compressed natural gas storage tank, when pressure reaches 25MPa, electronic pressure controller is according to the pressure information of the feedback of pressure transducer, automatically close low-temperature solenoid valve and LNG Liquefied natural gas high-pressure plunger pumping source simultaneously, stop to pump into liquefied natural gas gasifying to the high pressure air-heating type gasifier in liquefied natural gas (LNG) tank, the pressure of compressed natural gas storage tank tops out thereupon.So repeatedly, the pressure of compressed natural gas storage tank is remained between the 16-25MPa.Electronic pressure controller regulation and control pressure range is 16-25MPa, and the time of unloading and precooling can be adjusted.
This device has simple, safe and reliable, the automatic unloading of flow process, precooling and keeps giving and decide filling pressure, easy and simple to handle, advantage such as the engineering work load of building a station is little, the cycle short, investment is little compared with similar products.Liquefaction automobile with compressed natural gas gas station is built in the area that is applicable to the LNG Liquefied natural gas supply.
Description of drawings
Accompanying drawing is LNG Liquefied natural gas level pressure gasification aerator structural representation.
Among the figure: 1, liquefied natural gas (LNG) tank 2, low-temperature solenoid valve 3, LNG Liquefied natural gas high-pressure plunger pump 4, LNG Liquefied natural gas high pressure air-heating type gasifier 5, compressed natural gas storage tank 6, pressure transducer 7, electronic pressure controller 8, unloading solenoid valve 9, filling machine
Embodiment's explanation
In above accompanying drawing, liquefied natural gas (LNG) tank 1 is the double-level-metal vacuum insulation vessel, goes up for outer jar explosion-proof device is installed, and on the interior jar of gas phase pipeline safety valve and atmospheric valve and pressure of storage tank table is installed; Storage tank liquid-level meter and storage tank boost control are housed between gas phase pipeline and the liquid phase pipeline; LNG Liquefied natural gas high-pressure plunger pump 3 is installed on the liquid phase pipeline of liquefied natural gas (LNG) tank 1 by low-temperature solenoid valve 2, the exhaust line of the unloading solenoid valve 8 of LNG Liquefied natural gas high-pressure plunger pump is communicated with the gas phase of liquefied natural gas (LNG) tank 1, and the liquid outlet of LNG Liquefied natural gas high-pressure plunger pump connects LNG Liquefied natural gas high pressure air-heating type gasifier 4, compressed natural gas storage tank 5 and filling machine 9 successively; Pressure transducer 6 is installed on the connecting line of compressed natural gas storage tank 5, and the power circuit of pressure transducer 6, low-temperature solenoid valve 2 and LNG Liquefied natural gas high-pressure plunger pump 3 and unloading solenoid valve 8 thereof all inserts electronic pressure controller 7; Electronic pressure controller 7 regulation and control pressure ranges are 16-25MPa, and unloading and pre-cool time are adjustable whole; Whole device can be assembled by modular type, also can be fixed on the total cartridge chassis.
Claims (4)
1, liquefied natural gas charging device with automatic pressure regulation and gasification functions is formed by connecting by liquefied natural gas (LNG) tank, cryotronics magnet valve, LNG Liquefied natural gas high-pressure plunger pump, unloading solenoid valve, LNG Liquefied natural gas high pressure air-heating type gasifier, compressed natural gas storage tank, pressure transducer, electronic pressure controller, filling machine, it is characterized in that: liquefied natural gas (LNG) tank is the double-level-metal vacuum insulation vessel, goes up for outer jar explosion-proof device is installed; On the interior jar of gas phase pipeline safety valve and atmospheric valve and pressure of storage tank table are installed; Storage tank liquid-level meter and storage tank boost control are housed between gas phase pipeline and the liquid phase pipeline; The LNG Liquefied natural gas high-pressure plunger pump is installed on the liquid phase pipeline of liquefied natural gas (LNG) tank by low-temperature solenoid valve, the exhaust line of the unloading solenoid valve of LNG Liquefied natural gas high-pressure plunger pump is communicated with the gas phase of liquefied natural gas (LNG) tank, and the liquid outlet of LNG Liquefied natural gas high-pressure plunger pump connects LNG Liquefied natural gas high pressure air-heating type gasifier, compressed natural gas storage tank and filling machine successively; Pressure transducer is installed on the connecting line of CNG tank, and the power circuit of the InfoLine of pressure transducer, the circuit of low-temperature solenoid valve and LNG Liquefied natural gas high-pressure plunger pump and unloading solenoid valve thereof all inserts electronic pressure controller.
2, liquefied natural gas charging device with automatic pressure regulation and gasification functions according to claim 1, it is characterized in that: electronic pressure controller is according to the pressure information of pressure transducer feedback, when being lower than 16MPa, open the unloading solenoid valve several seconds at first automatically, thereafter the power supply of controlling low-temperature solenoid valve and LNG Liquefied natural gas high-pressure plunger pump is automatically delayed time open-minded in succession, closes simultaneously when reaching 25MPa.
3, liquefied natural gas charging device with automatic pressure regulation and gasification functions according to claim 1 is characterized in that: electronic pressure controller regulation and control pressure range is between the 16-25MPa, and the time of unloading and precooling can be adjusted.
4, liquefied natural gas charging device with automatic pressure regulation and gasification functions according to claim 1, it is characterized in that whole device can modular type assembling, also can be fixed on the total cartridge chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100484161A CN100489372C (en) | 2005-10-19 | 2005-10-19 | Liquefied natural gas automatic pressure regulation and gasification and charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100484161A CN100489372C (en) | 2005-10-19 | 2005-10-19 | Liquefied natural gas automatic pressure regulation and gasification and charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1763417A CN1763417A (en) | 2006-04-26 |
| CN100489372C true CN100489372C (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100484161A Expired - Fee Related CN100489372C (en) | 2005-10-19 | 2005-10-19 | Liquefied natural gas automatic pressure regulation and gasification and charging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN100489372C (en) |
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| KR100805022B1 (en) * | 2007-02-12 | 2008-02-20 | 대우조선해양 주식회사 | Lng cargo tank of lng carrier and method for treating boil-off gas using the same |
| CN100451438C (en) * | 2007-05-16 | 2009-01-14 | 马磊 | Automatic gasifying and gas adding device for energy saving type gasifying natural gas |
| CN101451652B (en) * | 2008-12-29 | 2012-06-13 | 大连三高集团有限公司 | Compressed-air pipe self-supercharging device and supercharging method thereof |
| CN101793398B (en) * | 2010-02-01 | 2013-03-27 | 王明华 | Method for heating, cutting and welding metal by using ethylene as fuel |
| CN102971593B (en) * | 2010-05-03 | 2015-12-16 | 西班牙高等科研理事会 | Gas liquefaction system and method |
| CN102155623B (en) * | 2011-03-25 | 2013-08-28 | 天津华迈燃气装备股份有限公司 | Self-pressure sampling device of natural gas high-voltage regulator with emergency pipeline |
| CN102252161A (en) * | 2011-08-16 | 2011-11-23 | 天津华迈环保设备有限公司 | Air-temperature-type air supply device for marine natural gas engine |
| CN102635782B (en) * | 2012-04-11 | 2015-01-28 | 重庆巨创计量设备股份有限公司 | Emergency L-CNG (liquefied-compressed nature gas) filling skid |
| CN102650369A (en) * | 2012-05-25 | 2012-08-29 | 张家港韩中深冷科技有限公司 | Liquefied natural gas filling pry |
| CN103411128B (en) * | 2013-03-21 | 2015-03-11 | 宁波明欣化工机械有限责任公司 | Integrated storage tank supercharge and gasification sledge |
| CN103604041B (en) * | 2013-09-13 | 2015-12-23 | 徐工集团工程机械股份有限公司科技分公司 | Automatic liquefied-natural-gaelectronic electronic control pressurization system and method thereof |
| CN103727386B (en) * | 2014-01-15 | 2016-03-16 | 成都华气厚普机电设备股份有限公司 | Built-in cryopump formula storage tank skid aerator |
| CN104406048A (en) * | 2014-10-28 | 2015-03-11 | 成都创源油气技术开发有限公司 | Gas supply structure for liquefied low-pressure shale gas |
| CN104359665B (en) * | 2014-11-17 | 2017-01-11 | 江苏克劳特低温技术有限公司 | Liquid adding opening performance test experiment table and method |
| CN104595701A (en) * | 2014-12-16 | 2015-05-06 | 沈军 | Primary pipeline natural gas filling station with two kinds of filling pressures |
| CN104806505A (en) * | 2015-04-20 | 2015-07-29 | 中国石油化工股份有限公司 | Method for testing low-temperature and high-pressure plunger pump |
| CN106338003B (en) * | 2015-07-10 | 2018-07-17 | 江苏深绿新能源科技有限公司 | A kind of increasing decompression implementation method of Horizontal low-temperature heat-insulating gas cylinder |
| CN105605420A (en) * | 2016-01-23 | 2016-05-25 | 江苏邦达通新能源装备有限公司 | Quick-pressurizing-type liquefied natural gas station |
| CN105987277A (en) * | 2016-07-07 | 2016-10-05 | 中国人民解放军空军勤务学院 | Small liquid oxygen gas station |
| CN106382464A (en) * | 2016-08-30 | 2017-02-08 | 宁夏共享模具有限公司 | Pressure adjusting method and pressure adjusting system for pressure container |
| CN106989272A (en) * | 2017-04-21 | 2017-07-28 | 江西制氧机有限公司 | A kind of vacuum insulation vessel saves loop structure |
| WO2018232744A1 (en) | 2017-06-23 | 2018-12-27 | Engineered Controls International, Llc | Cryogenic cylinder control system, globe valve, and solenoid valve |
| CN110886965B (en) * | 2018-09-07 | 2021-09-28 | 中国石油天然气股份有限公司 | Filling system |
| CN110220118B (en) * | 2019-05-22 | 2021-06-22 | 安瑞科(廊坊)能源装备集成有限公司 | Liquefied compressed natural gas high-pressure plunger pump pipeline system |
-
2005
- 2005-10-19 CN CNB2005100484161A patent/CN100489372C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1763417A (en) | 2006-04-26 |
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Granted publication date: 20090520 Termination date: 20111019 |