CN201334967Y - Liquefied natural gas self-pressurization device - Google Patents
Liquefied natural gas self-pressurization device Download PDFInfo
- Publication number
- CN201334967Y CN201334967Y CNU2009201398078U CN200920139807U CN201334967Y CN 201334967 Y CN201334967 Y CN 201334967Y CN U2009201398078 U CNU2009201398078 U CN U2009201398078U CN 200920139807 U CN200920139807 U CN 200920139807U CN 201334967 Y CN201334967 Y CN 201334967Y
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- Prior art keywords
- lng
- steel cylinder
- phase space
- natural gas
- pipeline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a liquefied natural gas (LNG) self-pressurization device for keeping the pressurization of LNG in order to ensure the normal operation of an LNG engine. The liquid-phase space part of an LNG steel cylinder (1) is connected with a pressure booster (5) through a pipeline (6) and then is connected with the gas-phase space part of the LNG steel cylinder (1), and the liquid-phase space part of the LNG steel cylinder (1) is connected with a water bath vaporizer (12) through the pipeline (6). The LNG can be directly filled into a vehicle bottle for the vehicle to travel with no need of using a special pump and no need of the integral pressure adjustment of liquid in advance. The LNG is gasified and pressurized through the pressure booster (5) of the LNG steel cylinder (1) and then is filled into the gas-phase space of the LNG steel cylinder (1) to make sure the pressure of the gas-phase space of the LNG steel cylinder (1) is not lower than 0.8 MPa. The LNG self-pressurization device solves the defect that the LNG fuel required by a vehicle can not be ensured due to over-low pressure of the LNG; and has the advantages of high safety and reliability, mature technology, simple structure and low cost.
Description
Technical field
The utility model relates to a kind of supercharging device, especially LNG Liquefied natural gas self-supercharging device of keeping the LNG Liquefied natural gas supercharging for the natural gas engine proper functioning.
Background technique
At present, known natural gas automobile fuel gas supply system mainly contains compressed natural gas (CNG) and LNG Liquefied natural gas (LNG) dual mode.Compressed natural gas be with rock gas with the high pressure compressed of 20-25Mpa in steel cylinder, be the automobile air feed.Compression back volume ratio is about 1: 200, owing to be subjected to the restriction of steel cylinder capacity, is generally the 50-60 liter, and a filling weight only is 10-12m
3, continual mileage is lower, is used for the gas burning system of compact car more.LNG Liquefied natural gas is to change rock gas into liquid state by compression and cooling to carry out accumulating and use, volume ratio is 1: 625, is three times of compressed natural gas, thereby it is big to have a filling weight, the advantage that continual mileage is long especially is fit to medium and heavy automobile and substitutes the fuel oil use.Because the pressure of LNG Liquefied natural gas self is lower, generally is lower than 0.5MPa, and the automobile fuel gas air supply system requires to have comparatively pressure stable, is higher than 0.5MPa, so that be motor continous-stable air feed.Present automobile also is divided into dual mode with the LNG Liquefied natural gas air supply system, a kind ofly is to use professional pump to carry out liquid to carry, and advantage is reliable and stable, and shortcoming is the cost height, does not have matured product at present.Another kind of mode is himself pressure to be heightened more than the 0.5Mpa by whole pressure regulation in liquefied natural gas (LNG) plant or gas station, and then be filled in the car bottle steam supply car and use, its advantage is that the automobile air supply system does not need special boosting and the voltage supply device, simple and reliable for structure, shortcoming is factory or station internal pressure-regulating length consuming time, energy consumption is big, thereby the cost height.
The open related art scheme of minority still can not satisfy in the reality carries out the supercharging normal requirement of using of motor altogether to LNG Liquefied natural gas LNG.
Summary of the invention
The purpose of this utility model be solve since LNG under-162 degrees celsius from can't be for vehicle motor provides capacity as the characteristic of normal pressure, lasting supply of fuel problem promptly proposes the LNG Liquefied natural gas self-supercharging device.
The measure that realizes the present utility model purpose comprises: connect the gas-phase space part that inserts the LNG steel cylinder behind the pressurized machine again by LNG steel cylinder liquid phase space segment by pipeline, connect into the water-bath vaporizer by LNG steel cylinder liquid phase part by pipeline.
Advantage of the present utility model is: do not use dedicated pump, simultaneously do not need in advance liquid to be carried out the whole pressure regulation steam supply car use of travelling of just can directly annotating in car bottle immediately yet, the pressurized machine 5 that LNG carries by LNG steel cylinder 1 gasifies LNG after the supercharging, fill LNG steel cylinder 1 gas-phase space, the pressure that guarantees LNG steel cylinder 1 gas-phase space is not less than 0.8Mpa, solve the hypotony of LNG own, can't guarantee the defective of the required LNG fuel of vehicle, this system advantage is: safe and reliable, technology maturation, simple in structure, with low cost.
Description of drawings:
Accompanying drawing 1 is the utility model embodiment 1 a structural representation
Reference character comprises: LNG steel cylinder 1, three level security valve 2, secondary safety valve 3, level meter 4, pressurized machine 5, pipeline 6, one-way pressure valve 7, cryogenic globe valve A8, cryogenic globe valve B 9, circulating water intake 10, circulating water outlet 11, water-bath vaporizer 12, safety valve 13, knock out drum 14, solenoid valve 15, pressure regulator valve 16, LNG motor 17.
Embodiment
Embodiment 1: connect the gas-phase space part that inserts LNG steel cylinder 1 behind the pressurized machines 5 again by LNG steel cylinder 1 liquid phase space segment by pipeline 6, connect into water-bath vaporizer 12 by LNG steel cylinder 1 liquid phase space segment by pipeline 6.
The external three level security valves 2 and the secondary safety valve 3 of LNG steel cylinder 1.LNG steel cylinder 1 pick out level meter 4.
Connect the gas-phase space part that inserts LNG steel cylinder 1 behind cryogenic globe valve A8 and the one-way pressure valve 7 back pressurized machines 5 more successively by pipeline 6 by LNG steel cylinder 1 liquid phase space segment.Pressurized machine 5 is the air temperature type vaporizing unit.One-way pressure valve 7 is to guarantee that LNG liquid is according to from the liquid phase to the gas-phase apparatus.
Go into water-bath vaporizer 12 after connecting cryogenic globe valve B 9 by LNG steel cylinder 1 liquid phase space segment by pipeline 6.Water-bath type vaporizer 12 utilizes vehicle cocycle water heating system, and the LNG of 0.8Mpa is vaporizated into rock gas rapidly, satisfies the required fuel of vehicle motor.Water-bath vaporizer 12 external vehicle circulating water intake 10 and vehicle circulating water outlets 11.Water-bath vaporizer 12 inserts LNG motor 17 after pipeline 6 connects knock out drum 14.Knock out drum 14 solves the phenomenon of vehicle undercharge when acceleration and heavy duty.Knock out drum 14 picks out safety valve 13.Safety valve 13 is for guaranteeing knock out drum 13 safety installationss.Knock out drum 14 connects solenoid valve 15 by pipeline 6 and LNG motor 17 is inserted in pressure regulator valve 16 backs.Electromagnetic valve of gas circuit 15 is the device of energy turned off in synchronization supply of fuel when guaranteeing vehicle lay-off.Pressure regulator valve 16 guarantees the steady pressure of motor 17 required fuel.
The vehicle-mounted LNG steel cylinder 1 general double-level-metal that adopts adds vacuum wound insulation technology.Adopt this technology day relative evaporation can be controlled in 0.2%, therefore can guarantee that evaporation loss does not take place 7～14d substantially.LNG steel cylinder 1 has pressure gauge, two-stage pressure relief valve and level meter on blow-down pipe, can discharge automatically after guarantor's jar internal pressure height.
For realizing the utility model embodiment goal of the invention, LNG steel cylinder 1 is for solving the problem that above-mentioned LNG fuel exists, on the fluid pipeline, installed an air temperature type vaporization pressurized machine 5 additional, be transported to after with the liquid in the LNG liquid phase space in LNG steel cylinder 1 storage tank heating vaporization in LNG steel cylinder 1 storage tank in the gas-phase space by pressurized machine 5, the pressure of LNG steel cylinder 1 storage tank is increased to about 0.8Mpa, finish guaranteeing motor 17 required fuel pressures.
After pressurized machine 5 gasifies LNG supercharging, fill LNG steel cylinder 1 gas-phase space, guarantee that the pressure of LNG steel cylinder 1 gas-phase space is not less than 0.8Mpa, guarantee that LNG draws through 12 vaporizations of water-bath vaporizer from LNG steel cylinder 1, infeeds LNG motor 17 through knock out drum 14 and uses.
-162 degrees centigrade of LNG are elevated to the pressure in the LNG steel cylinder about 0.8Mpa by the pressurized machine 5 that installs additional, make the interior LNG of steel cylinder under 0.8Mpa pressure, be the rock gas of 0.8Mpa pressure by the gasification of water-bath type vaporizer, be stored into knock out drum 14, the process pressure regulation is that the rock gas of 0.5Mpa is motor 17 fuel supplying.
The advantage of present embodiment is, do not use dedicated pump, simultaneously do not need in advance liquid to be carried out the whole pressure regulation steam supply car use of travelling of just can directly annotating in car bottle immediately yet, the pressurized machine 5 that LNG carries by LNG steel cylinder 1 gasifies LNG after the supercharging, fill LNG steel cylinder 1 gas-phase space, the pressure that guarantees LNG steel cylinder 1 gas-phase space is not less than 0.8Mpa, solve the hypotony of LNG own, can't guarantee the defective of the required LNG fuel of vehicle, this system advantage is: safe and reliable, technology maturation, simple in structure, with low cost.
Claims (6)
1. LNG Liquefied natural gas self-supercharging device, it is characterized in that, connect the gas-phase space part that inserts LNG steel cylinder (1) behind the pressurized machine (5) again by LNG steel cylinder (1) liquid phase space segment by pipeline (6), connect into water-bath vaporizer (12) by pipeline (6) by LNG steel cylinder (1) liquid phase space segment.
2. LNG Liquefied natural gas self-supercharging device as claimed in claim 1 is characterized in that, external three level security valves (2) of LNG steel cylinder (1) and secondary safety valve (3).
3. LNG Liquefied natural gas self-supercharging device as claimed in claim 1 is characterized in that, LNG steel cylinder (1) picks out level meter (4).
4. LNG Liquefied natural gas self-supercharging device as claimed in claim 1, it is characterized in that, connect the gas-phase space part that inserts LNG steel cylinder (1) behind cryogenic globe valve A (8) and one-way pressure valve (7) the back pressurized machine (5) again by LNG steel cylinder (1) liquid phase space segment successively by pipeline (6), pressurized machine (5) is the air temperature type vaporizing unit.
5. LNG Liquefied natural gas self-supercharging device as claimed in claim 1 is characterized in that, goes into water-bath vaporizer (12) after connecting cryogenic globe valve B (9) by LNG steel cylinder (1) liquid phase space segment by pipeline (6).
6. LNG Liquefied natural gas self-supercharging device as claimed in claim 5, it is characterized in that, external vehicle circulating water intake of water-bath vaporizer (12) (10) and vehicle circulating water outlet (11), water-bath vaporizer (12) inserts LNG motor (17) after pipeline (6) connects knock out drum (14), knock out drum (14) picks out safety valve (13), and knock out drum (14) connects solenoid valve (15) by pipeline (6) and LNG motor (17) is inserted in pressure regulator valve (16) back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201398078U CN201334967Y (en) | 2009-01-13 | 2009-01-13 | Liquefied natural gas self-pressurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201398078U CN201334967Y (en) | 2009-01-13 | 2009-01-13 | Liquefied natural gas self-pressurization device |
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| Publication Number | Publication Date |
|---|---|
| CN201334967Y true CN201334967Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201398078U Expired - Lifetime CN201334967Y (en) | 2009-01-13 | 2009-01-13 | Liquefied natural gas self-pressurization device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791946A (en) * | 2010-01-14 | 2010-08-04 | 张家港富瑞特种装备股份有限公司 | Gas supply system of liquefied natural gas vehicle |
| CN102252162A (en) * | 2011-08-16 | 2011-11-23 | 天津华迈环保设备有限公司 | Natural gas engine hot water circulating gas supply device for ship |
| CN102537659A (en) * | 2012-02-28 | 2012-07-04 | 华南理工大学 | Self-supercharging LNG (liquefied natural gas) movable filling device and filling method thereof |
| CN103133187A (en) * | 2013-03-21 | 2013-06-05 | 宁波明欣化工机械有限责任公司 | High-integrated type filling vaporization pressure stabilization sledge |
| CN103562536A (en) * | 2011-03-22 | 2014-02-05 | 大宇造船海洋株式会社 | Method and system for supplying fuel to high-pressure natural gas injection engine |
| CN103620202A (en) * | 2011-03-11 | 2014-03-05 | 大宇造船海洋株式会社 | System for supplying fuel to marine structure having re-liquefying device and high-pressure natural gas injection engine |
| CN103696884A (en) * | 2013-11-21 | 2014-04-02 | 武汉三江航天远方科技有限公司 | Shared vaporizer type LNG (Liquefied Natural Gas) supply system |
| CN104100416A (en) * | 2014-07-01 | 2014-10-15 | 张家港保税区长江新能源装备有限公司 | Self-pressurizing system of gas cylinder |
| CN104121114A (en) * | 2013-04-24 | 2014-10-29 | 现代重工业株式会社 | System for supplying liquefied natural gas fuel |
| CN105089857A (en) * | 2015-07-22 | 2015-11-25 | 诸城福田汽车科技开发有限公司 | LNG-CNG dual fuel power gas supply system and natural gas automobile |
| CN105673258A (en) * | 2016-03-08 | 2016-06-15 | 任焕轩 | LNG (Liquefied Natural Gas) vehicle-mounted gas cylinder supercharging system |
| CN107100764A (en) * | 2017-07-04 | 2017-08-29 | 陕西舜洋电子科技有限公司 | A kind of automobile-used LNG feeders |
| CN114838288A (en) * | 2022-06-10 | 2022-08-02 | 山东奥扬新能源科技股份有限公司 | Novel gas supply system of automobile-used liquid hydrogen bottle and automobile-used bottle of LNG |
-
2009
- 2009-01-13 CN CNU2009201398078U patent/CN201334967Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791946A (en) * | 2010-01-14 | 2010-08-04 | 张家港富瑞特种装备股份有限公司 | Gas supply system of liquefied natural gas vehicle |
| CN103620202A (en) * | 2011-03-11 | 2014-03-05 | 大宇造船海洋株式会社 | System for supplying fuel to marine structure having re-liquefying device and high-pressure natural gas injection engine |
| CN103562536A (en) * | 2011-03-22 | 2014-02-05 | 大宇造船海洋株式会社 | Method and system for supplying fuel to high-pressure natural gas injection engine |
| CN102252162A (en) * | 2011-08-16 | 2011-11-23 | 天津华迈环保设备有限公司 | Natural gas engine hot water circulating gas supply device for ship |
| CN102537659A (en) * | 2012-02-28 | 2012-07-04 | 华南理工大学 | Self-supercharging LNG (liquefied natural gas) movable filling device and filling method thereof |
| CN103133187A (en) * | 2013-03-21 | 2013-06-05 | 宁波明欣化工机械有限责任公司 | High-integrated type filling vaporization pressure stabilization sledge |
| CN104121114A (en) * | 2013-04-24 | 2014-10-29 | 现代重工业株式会社 | System for supplying liquefied natural gas fuel |
| CN103696884A (en) * | 2013-11-21 | 2014-04-02 | 武汉三江航天远方科技有限公司 | Shared vaporizer type LNG (Liquefied Natural Gas) supply system |
| CN104100416A (en) * | 2014-07-01 | 2014-10-15 | 张家港保税区长江新能源装备有限公司 | Self-pressurizing system of gas cylinder |
| CN105089857A (en) * | 2015-07-22 | 2015-11-25 | 诸城福田汽车科技开发有限公司 | LNG-CNG dual fuel power gas supply system and natural gas automobile |
| CN105089857B (en) * | 2015-07-22 | 2019-02-26 | 北汽福田汽车股份有限公司 | A kind of LNG-CNG double fuel power air supply system and natural gas vehicle |
| CN105673258A (en) * | 2016-03-08 | 2016-06-15 | 任焕轩 | LNG (Liquefied Natural Gas) vehicle-mounted gas cylinder supercharging system |
| CN107100764A (en) * | 2017-07-04 | 2017-08-29 | 陕西舜洋电子科技有限公司 | A kind of automobile-used LNG feeders |
| CN114838288A (en) * | 2022-06-10 | 2022-08-02 | 山东奥扬新能源科技股份有限公司 | Novel gas supply system of automobile-used liquid hydrogen bottle and automobile-used bottle of LNG |
| CN114838288B (en) * | 2022-06-10 | 2024-03-08 | 山东奥扬新能源科技股份有限公司 | Novel air supply system of vehicle bottle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |
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| CX01 | Expiry of patent term |