CN206903770U - Vehicle and its LNG feed systems - Google Patents

Vehicle and its LNG feed systems Download PDF

Info

Publication number
CN206903770U
CN206903770U CN201720538561.6U CN201720538561U CN206903770U CN 206903770 U CN206903770 U CN 206903770U CN 201720538561 U CN201720538561 U CN 201720538561U CN 206903770 U CN206903770 U CN 206903770U
Authority
CN
China
Prior art keywords
surge tank
feed systems
holding vessel
lng
lng feed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720538561.6U
Other languages
Chinese (zh)
Inventor
李晶晶
程华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beiqi Foton Motor Co Ltd
Original Assignee
Beiqi Foton Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beiqi Foton Motor Co Ltd filed Critical Beiqi Foton Motor Co Ltd
Priority to CN201720538561.6U priority Critical patent/CN206903770U/en
Application granted granted Critical
Publication of CN206903770U publication Critical patent/CN206903770U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels

Abstract

This disclosure relates to a kind of LNG feed systems and include the vehicles of the LNG feed systems.The LNG feed systems include storage LNG holding vessel (1), vaporizer (2) and engine (4), the holding vessel (1) is connected by the first pipeline (5) with the vaporizer (2), the LNG feed systems include surge tank (3), the vaporizer (2) is communicated in the surge tank (3) by the second pipeline (6), the surge tank (3) is connected by the 3rd pipeline (7) with the engine (4), and the safety device for reducing pressure is provided with the surge tank (3).The disclosure is provided for reducing the safety device of pressure on surge tank, each pipeline and equipment in LNG feed systems can be avoided to be exploded because of superpressure, the security of LNG feed systems is improved, correspondingly increases the security of the vehicle including LNG feed systems.

Description

Vehicle and its LNG feed systems
Technical field
This disclosure relates to vehicular field, in particular it relates to a kind of LNG feed systems and including the LNG feed systems Vehicle.
Background technology
In vehicular field, using engine of the liquefied natural gas (Liquefied Natural Gas, LNG) as fuel, The liquefied natural gas that its fuel supply principle is previously stored inside holding vessel passes through Pipeline transport to vaporizer, by pipe after vaporization Road is delivered to engine.
In traditional LNG engine vehicles, safety valve only is installed at liquefied natural gas storage tanks end, can so be ensured When holding vessel is by long-term use or when holding vessel damage occurs and causes internal pressure to raise, safety valve is opened in time, discharges superpressure Gas, avoid explosion accident.However, installed in holding vessel end safety valve holding vessel liquid valve close after, only to storage Deposit tank and carry out overpressure protection in itself, aft section (i.e. the pipeline portions of vaporizer to engine) unprotect of holding vessel is made With.If there are engine misses, water pipe is suppressed in the case of waiting indefinitely, the liquefied natural gas in holding vessel aft section may be because rapid Vaporize and cause pressure rise and can not discharge, there is blast when serious.
Utility model content
The purpose of the disclosure is to provide a kind of LNG feed systems, and the LNG feed systems can be in engine misses, water pipe Suppress in the case of waiting indefinitely, avoid each pipeline and equipment in LNG feed systems from being exploded because of superpressure, improve LNG feed systems Security.
To achieve these goals, the disclosure provides a kind of LNG feed systems, and the LNG feed systems include storage LNG Holding vessel, vaporizer and engine, the holding vessel connected by the first pipeline with the vaporizer, the LNG supplies system System includes surge tank, the vaporizer by the second pipeline connection in the surge tank, the surge tank by the 3rd pipeline and The engine connection, and the safety device for reducing pressure is provided with the surge tank.
Alternatively, the safety device is surge tank safety valve or the safe valve group of surge tank.
Alternatively, the safe valve group of the surge tank safety valve or surge tank is arranged on the air inlet or outlet of the surge tank At mouthful.
Alternatively, the Opening pressure of the safe valve group of the surge tank safety valve or surge tank is 2bar~5bar.
Alternatively, liquid stop valve is provided with out on the liquid outlet of the holding vessel.
Alternatively, LNG feed systems include pressure gauge, and the pressure gauge is connected to the vaporizer by measuring pipeline.
Alternatively, holding vessel safety valve or the safe valve group of holding vessel are provided with the holding vessel.
Alternatively, the Opening pressure of the safe valve group of the holding vessel safety valve or holding vessel is less than the surge tank safety valve Or the Opening pressure of the safe valve group of surge tank.
Second purpose of the disclosure is to provide a kind of vehicle, and the vehicle explodes when fuel can be avoided to supply, so as to With higher security.
To realize above-mentioned second purpose, the disclosure provides a kind of vehicle for including above-mentioned LNG feed systems.
Pass through above-mentioned technical proposal, it is provided for reducing the safety device of pressure on surge tank, LNG can be avoided to supply Each pipeline and equipment are exploded because of superpressure in system, improve the security of LNG feed systems, correspondingly increase including The security of the vehicle of LNG feed systems.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool Body embodiment is used to explain the disclosure together, but does not form the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the LNG feed systems of disclosure illustrative embodiments.
Description of reference numerals
The engine of 1 holding vessel, 2 vaporizer, 3 surge tank 4
The surge tank safety valve of 5 first 6 second the 3rd pipeline of pipeline 7 of pipeline 8
The air inlet of 9 holding vessel safety valve, 10 stop valve, 11 pressure gauge 31
32 gas outlets
Embodiment
The embodiment of the disclosure is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched The embodiment stated is merely to illustrate and explained the disclosure, is not limited to the disclosure.
Referring to Fig. 1, the LNG feed systems according to disclosure illustrative embodiments are shown, the LNG feed systems are main For in vehicle, therefore the disclosure further relates to the vehicle that includes the LNG feed systems, nevertheless, the disclosure should not limit In the application.
In embodiment shown in Fig. 1, LNG feed systems include holding vessel 1, vaporizer 2, the surge tank 3 being sequentially communicated With engine 4.Specifically, holding vessel 1 is connected by the first pipeline 5 with vaporizer 2, and vaporizer 2 is communicated in by the second pipeline 6 Surge tank 3, surge tank 3 are connected by the 3rd pipeline 7 with engine 4.
In said structure, holding vessel 1 is used to store LNG fuel, and liquid stop valve is provided with out on the liquid outlet of holding vessel 1 10, to open or close the first pipeline 5, generally, it is full-opening valve to go out liquid stop valve 10, to provide LNG to vaporizer 2.In addition, storage Deposit and holding vessel safety valve 9 or the safe valve group of holding vessel are provided with tank 1, in holding vessel 1 by long-term use or holding vessel damages Bad when, holding vessel safety valve 9 or the safe valve group of holding vessel can open in time, discharge over-pressure gas, avoid explosion accident.Such as figure Shown in 1, holding vessel 1 is arranged to store safe valve group, i.e., including the first holding vessel safety valve and the second holding vessel safety valve, works as storage When depositing the internal pressure of tank 1 more than the first preset value, the first holding vessel safety valve is opened and is vented, further, when the internal pressure of holding vessel 1 surpasses When crossing the second preset value, second preset value is more than the first preset value, and the second holding vessel safety valve is opened and is vented, to reduce storage Deposit the internal pressure of tank 1.In LNG feed systems, vaporizer 2 can be connected by cooling line with engine cool water system, so as to The liquefied natural gas or the natural gas vaporization of gas-liquid mixed being fed into vaporizer 2, hereafter again will via surge tank 3 into gas Gaseous natural gas is collected and is supplied to engine 4, and then provides power for whole vehicle.
As it was previously stated, in the case of in order to avoid suppressing and waiting indefinitely in engine misses, water pipe, especially going out at liquid stop valve 10 Under cut-off state, holding vessel 1 does not connect with aft section, and liquefied natural gas therein is because of effect of environmental temperature rapid vaporization And cause pressure rise and can not discharge, and then cause to explode, the disclosure is provided with the peace for reducing pressure on surge tank 3 Full device.As can be seen that natural gas of the source pressure of the aft section of holding vessel 1 after vaporization, therefore, safety device is set Surge tank 3 after vaporizer 2 can quickly reduce pressure, avoid each pipeline and equipment in LNG feed systems from being sent out because of superpressure Raw blast, improve the security of LNG feed systems.
Wherein, above-mentioned safety device can be a variety of devices or part that can reduce pressure, for example, safety device is slow Rush tank safety valve 8 or the safe valve group of surge tank.It is similar with foregoing holding vessel safety valve 9 or the safe valve group of holding vessel, surge tank peace Full valve 8 or the safe valve group of surge tank can be air bleeding valve, to reduce the internal pressure of surge tank 3.In the embodiment of the disclosure, Surge tank safety valve 8 is provided with surge tank 3, specifically, surge tank safety valve 8 is arranged at the gas outlet 32 of surge tank 3. In other variants of the disclosure, surge tank safety valve 8 can also be arranged at the air inlet 31 of surge tank 3, Huo Zhe Surge tank safety valve 8 or the safe valve group of surge tank, these arrangement sides are set respectively at the air inlet 31 of surge tank 3 or gas outlet 32 Formula belongs to the protection domain of the disclosure.
According to practical application, in the disclosure, the Opening pressure of holding vessel safety valve 9 or the safe valve group of holding vessel is less than buffering The Opening pressure of tank safety valve 8 or the safe valve group of surge tank.Specifically, surge tank safety valve 8 or the safe valve group of surge tank are opened It is 2bar~5bar to open pressure, both may insure that gaseous natural gas can be stably supplied to engine, is able to ensure that again whole The security of feed system.
In addition, referring to Fig. 1, LNG feed systems can also include pressure gauge 11, the pressure for position needed for display system Power.In the disclosure, pressure gauge 11 is connected to vaporizer 2 by measuring pipeline, to show the internal pressure in vaporizer 2.According to pressure The display result of table 11, correspondingly safety measure etc. can be taken in the case where pressure is larger.
Based on above-mentioned LNG feed systems, the vehicle that the disclosure includes the LNG feed systems correspondingly has higher peace Quan Xing.
The preferred embodiment of the disclosure is described in detail above in association with accompanying drawing, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical scheme of the disclosure Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the disclosure to it is various can The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought, it should equally be considered as disclosure disclosure of that.

Claims (9)

1. a kind of LNG feed systems, the LNG feed systems include storage LNG holding vessel (1), vaporizer (2) and engine (4), the holding vessel (1) is connected by the first pipeline (5) with the vaporizer (2), it is characterised in that the LNG supplies system System includes surge tank (3), and the vaporizer (2) is communicated in the surge tank (3), the surge tank (3) by the second pipeline (6) It is connected by the 3rd pipeline (7) with the engine (4), and the peace for reducing pressure is provided with the surge tank (3) Full device.
2. LNG feed systems according to claim 1, it is characterised in that the safety device is surge tank safety valve (8) Or the safe valve group of surge tank.
3. LNG feed systems according to claim 2, it is characterised in that the surge tank safety valve (8) or surge tank peace Full valve group is arranged on air inlet (31) or gas outlet (32) place of the surge tank (3).
4. LNG feed systems according to claim 2, it is characterised in that the surge tank safety valve (8) or surge tank peace The Opening pressure of full valve group is 2bar~5bar.
5. LNG feed systems according to claim 1, it is characterised in that be provided with the liquid outlet of the holding vessel (1) Go out liquid stop valve (10).
6. LNG feed systems according to claim 1, it is characterised in that the LNG feed systems include pressure gauge (11), the pressure gauge (11) is connected to the vaporizer (2) by measuring pipeline.
7. the LNG feed systems according to any one of claim 2 to 6, it is characterised in that set on the holding vessel (1) It is equipped with holding vessel safety valve (9) or the safe valve group of holding vessel.
8. LNG feed systems according to claim 7, it is characterised in that the holding vessel safety valve (9) or holding vessel peace The Opening pressure of full valve group is less than the Opening pressure of the surge tank safety valve (8) or the safe valve group of surge tank.
9. a kind of vehicle, it is characterised in that the vehicle includes LNG according to any one of claim 1 to 8 supplies system System.
CN201720538561.6U 2017-05-12 2017-05-12 Vehicle and its LNG feed systems Active CN206903770U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720538561.6U CN206903770U (en) 2017-05-12 2017-05-12 Vehicle and its LNG feed systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720538561.6U CN206903770U (en) 2017-05-12 2017-05-12 Vehicle and its LNG feed systems

Publications (1)

Publication Number Publication Date
CN206903770U true CN206903770U (en) 2018-01-19

Family

ID=61288867

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720538561.6U Active CN206903770U (en) 2017-05-12 2017-05-12 Vehicle and its LNG feed systems

Country Status (1)

Country Link
CN (1) CN206903770U (en)

Similar Documents

Publication Publication Date Title
EP1717511A3 (en) Gas cooling for high pressure fuel storage tanks on vehicles powered by compressed natural gas or hydrogen
CN202252834U (en) Wharf boat LNG (liquefied natural gas) filling station
WO2022135109A1 (en) Liquid hydrogen storage type hydrogenation apparatus capable of pre-cooling by liquid hydrogen
Brunner et al. Cryo-compressed hydrogen storage
WO2015040267A1 (en) Integrated fuel storage system and gas valve unit
US11371657B2 (en) Hydropack system
CN104654008A (en) Recycle device for LNG (Liquefied Natural Gas) tank overpressure discharge and implementation method thereof
CN204532588U (en) A kind of active boost system of LNG Liquefied natural gas
CN206903770U (en) Vehicle and its LNG feed systems
CN203515865U (en) Liquefied natural gas vehicle gas supply device and liquefied natural gas vehicle
CN103615657A (en) Natural gas transmission system of LNG power driving vessel
US10415509B2 (en) Cooling system for cryogenic fuel delivery components
CN103742786B (en) Security system is clashed in motor liquified gas combustion gas
CN205424413U (en) Be used for empty interior stainless steel pipeline system of cold box that divides to aerify welded air feeder
Michel et al. On-board equipment for liquid hydrogen vehicles
CN214222755U (en) High-pressure hydrogen filling system based on temperature rise control
CN203190024U (en) Filling machine of liquefied natural gas vehicle
CN105156881B (en) Low temperature insulation container Intelligent pressure unit and boosting method
CN203686577U (en) Liquefied gas and fuel gas impact safety system for vehicle
CN103742784B (en) A kind of liquefied natural gas (LNG) tank Zero emission device and technique thereof
Li et al. Study on the harm effects of releases from liquid hydrogen tank by consequence modeling
CN203794615U (en) Gas refueler for realizing gas replacement and positive pressure protection
CN106704825B (en) The system and method being pressurized using CNG to automobile-used LNG gas cylinder
CN203365172U (en) High-temperature, high-pressure and easy self-ignition solid fluidized bed sampling device
CN103438353A (en) Redundant gas supply loop

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder

Address after: 102206 Beijing Changping District Shahe town Shayang Road, Niu Niu Wan Village North

Patentee after: Beiqi Futian Automobile Co., Ltd.

Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang

Patentee before: Beiqi Futian Automobile Co., Ltd.

CP02 Change in the address of a patent holder