CN104929813B - Fork truck stores up air supply system with LNG - Google Patents
Fork truck stores up air supply system with LNG Download PDFInfo
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- CN104929813B CN104929813B CN201510349827.8A CN201510349827A CN104929813B CN 104929813 B CN104929813 B CN 104929813B CN 201510349827 A CN201510349827 A CN 201510349827A CN 104929813 B CN104929813 B CN 104929813B
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- lng
- connecting interface
- steel cylinders
- vaporizer
- air supply
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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 present invention relates to a kind of fork truck air supply system is stored up with LNG.The purpose of the present invention is to meet fork truck requirement, it is ensured that LNG is reliably and securely stored and used on fork truck.The technical scheme is that：LNG steel cylinders one end center of gas storage system is formed with connecting interface, connecting interface is externally provided with a circle cartridge type shield, LNG steel cylinders are fixed in shield one end, the other end sets cover plate, in shield, the liquid feeding pipeline connected with connecting interface, drain pipe road and emptying pipeline are provided between cover plate and steel cylinder, the connecting interface lower position of LNG steel cylinders, which is passed through from pressure piping, connects connecting interface；Air supply system includes vaporizer shell and the helical form fuel gas pipeline being placed in housing, fuel gas pipeline one is terminated with inlet, another termination vaporizer gas outlet, water inlet and delivery port are connected to respectively at vaporizer shell both ends, vaporizer gas outlet connects supply air line, and voltage-stablizer is provided with supply air line；The drain pipe road of connecting line connection gas storage system and the inlet of air supply system.
Description
Technical field
The present invention relates to a kind of fork truck air supply system is stored up with LNG.Suitable for the internal combustion with LNG (liquefied natural gas) for power
Fork truck.
Background technology
LNG is the abbreviation of liquefied natural gas, is that normal temperature gaseous natural gas is compressed, is cooled to its condensation point (- 161.5 DEG C)
Become liquid after temperature.Because LNG has ultralow temperature and high pressure harm, and it is inflammable, explosive, once a leak occurs, larger peace be present
Full hidden danger, therefore when being applied on fork truck, LNG safely and reliably stores, using being particularly important.Characteristic based on LNG, LNG
Must be stored with special LNG steel cylinders, and have to pass through vaporization, be heated to normal temperature, decompression be converted to normal temperature gaseous natural gas after,
The requirement of internal combustion engine on fork truck can be met.
The content of the invention
The technical problem to be solved in the present invention is：For above-mentioned problem, there is provided a kind of simple in construction, easy to operate
Fork truck with LNG store up air supply system, to meet fork truck requirement, it is ensured that LNG is reliably and securely stored and made on fork truck
With.
The technical solution adopted in the present invention is：A kind of fork truck stores up air supply system with LNG, it is characterised in that：Including gas storage
System and air supply system and connecting line；
The gas storage system includes LNG steel cylinders, and LNG steel cylinders one end center is formed with connecting interface, connecting interface peripheral hardware
Have a circle cartridge type shield, LNG steel cylinders are fixed in the shield one end, and the other end sets cover plate, in the shield, cover plate and steel cylinder it
Between be provided with liquid feeding pipeline connect with connecting interface, drain pipe road and empty pipeline, orientation under the connecting interface of the LNG steel cylinders
Put through connecting connecting interface from pressure piping；
The air supply system includes vaporizer shell, and the helical form fuel gas pipeline being placed in housing, fuel gas pipeline one
Inlet is terminated with, another termination vaporizer gas outlet, water inlet and delivery port, vapour are connected to respectively at vaporizer shell both ends
Change device gas outlet connection supply air line, voltage-stablizer is installed on supply air line；
The drain pipe road of the connecting line connection gas storage system and the inlet of air supply system.
The liquid feeding pipeline includes filling opening, LNG feed liquors flexible pipe and feed liquor check valve, and filling opening is fixed through filling opening support
In shield outer wall bottom, the filling opening connects the connecting interface of LNG steel cylinders through LNG feed liquors flexible pipe with feed liquor check valve.
LNG is installed on the drain pipe road liquid stop valve and go out liquid check valve.
The emptying pipeline includes gas returning port, vent stop valve, main safety valve and secondary safety valve, wherein main safety valve with
Secondary safety valve connects the connecting interface of LNG steel cylinders by the road respectively, and the gas returning port is fixed on shield outer wall through mounting bracket,
The gas returning port is through emptying connecting tube, vent stop valve connects the connecting interface of LNG steel cylinders.
It is described to include pressure inlet, pressure regulator valve from pressure piping and connected from pressure charging system stop valve, described pressure inlet one end
The connecting interface lower position of LNG steel cylinders, connects LNG steel cylinders, and the other end connects the connecting interface of LNG steel cylinders, wherein pressure inlet
Upper to be equipped with from pressure charging system stop valve and pressure regulator valve, pressure inlet is arranged along LNG steel cylinders lower edge, and some lead is welded thereon
Hot fin.
For the LNG steel cylinders level frame on steel cylinder erection support, steel cylinder erection support fixes steel cylinder by mount cable-tie,
Cushion pad is set between LNG steel cylinders and steel cylinder erection support and mount cable-tie.
The LNG steel cylinders bottom is provided with one and encloses backplate for protecting pressure inlet and connecting line, is provided with backplate some
Aperture, the backplate are mounted on steel cylinder erection support.
The vaporizer shell upper surface is formed with vaporizer filler, and vaporizer filler is furnished with plug；Vaporizer shell
Lower surface is formed with vaporizer sewage draining exit, and is furnished with block head.
There is the fixed support of two door types on the vaporizer shell along its axial restraint, the supply air line is by vaporizing
Device gas outlet is folded upward at after-frame on two fixed supports, and the voltage-stablizer is installed on the air supply pipe between two fixed supports
Lu Shang.
The connecting line is connected using copper pipe or stainless steel flexible hose；According to copper pipe, then calibration tube is designed to, and adopt
With O-shaped design.
The beneficial effects of the invention are as follows：The installation site of accurate arrangement gas storage system and air supply system of the invention, installation are tight
Gather, without departing from fork truck outline, and facilitate hood to open completely.The present invention band protective cover and cover plate, by the valve on LNG steel cylinders
The parts such as door, pipeline, instrument are effectively protected, and are prevented pipeline from being damaged by external world's damage and LNG leakages to people, safely may be used
Lean on.The coolant that the present invention is drawn from engine partial circulating heats fuel gas pipeline, improves energy utilization rate.
Brief description of the drawings
Fig. 1 is the front view (no cover plate) of embodiment.
Fig. 2 is the left view of embodiment.
Fig. 3 is the right view of embodiment.
Embodiment
As shown in FIG. 1 to 3, the present embodiment is that a kind of fork truck stores up air supply system with LNG, is by gas storage system and supply
The composition such as system and its erection support, connecting line 2 and protective cover.
Gas storage system includes LNG steel cylinders 1 in this example, and the steel cylinder is included in steel cylinder shell 1-10, heat-insulation layer 1-11 and steel cylinder
Courage 1-12.In on two steel cylinder erection supports 6, steel cylinder erection support 6 is coordinated the level frame of LNG steel cylinders 1 by mount cable-tie 1-19
High-strength bolt fixes steel cylinder, and cushion pad 1-18 is set between LNG steel cylinders 1 and steel cylinder erection support 6 and mount cable-tie 1-19.
The connecting interface 1-23 connected with steel cylinder inner bag 1-12 is formed with the center of the one end of LNG steel cylinders 1.Connecting interface
1-23 is externally provided with a circle cartridge type shield 1-4, and LNG steel cylinders 1 are fixed in the shield one end, and the other end sets cover plate 1-3.In shield 1-
In 4, the liquid feeding pipeline connected with connecting interface 1-23, drain pipe road and emptying pipeline, LNG are provided between cover plate 1-3 and steel cylinder
On steel cylinder 1, connecting interface 1-23 lower positions are passed through from pressure piping connection connecting interface 1-23.
Liquid feeding pipeline includes filling opening 1-7, LNG feed liquor flexible pipe 1-2 and feed liquor check valve 1-16, wherein filling opening 1-7 warps
Filling opening support 1-21 is fixed on shield 1-4 outer walls bottom, and position height is suitable, is easy to filling operation, filling opening 1-7 is through LNG
Feed liquor flexible pipe 1-2 connects the connecting interface 1-23 of LNG steel cylinders 1 with feed liquor check valve 1-16.LNG is installed on drain pipe road and liquid
Stop valve 1-1 and go out liquid check valve 1-15.Empty pipeline include gas returning port 1-5, vent stop valve 1-8, main safety valve 1-13 and
The connection that secondary safety valve 1-14, wherein main safety valve 1-13 connect LNG steel cylinders 1 with secondary safety valve 1-14 by the road respectively connects
Mouth 1-23, gas returning port 1-5 are fixed on shield 1-4 outer walls through mounting bracket 1-22, and the gas returning port is through emptying connecting tube, emptying ends
The connecting interface 1-23 of valve 1-8 connection LNG steel cylinders 1.Include pressure inlet 1-9, pressure regulator valve 1-17 from pressure piping and be from supercharging
Unite stop valve 1-20, wherein the connecting interface 1-23 lower positions of pressure inlet 1-9 one end connection LNG steel cylinders 1, connects steel cylinder inner bag
The connecting interface 1-23 of 1-12, the other end connection LNG steel cylinder 1.It is equipped with pressure inlet 1-9 from pressure charging system stop valve 1-20 and tune
Pressure valve 1-17, the pressure inlet is arranged along the lower edge of LNG steel cylinders 1, and some heat transmission fins are welded thereon.
LNG steel cylinders 1 are supported with steel cylinder erection support 6, and are fixed with mount cable-tie 1-19, in order to prevent vibration to steel cylinder and
The influence of its pipeline and valve, cushion pad 1-18 is set between LNG steel cylinders 1 and steel cylinder erection support 6 and mount cable-tie 1-19.
Air supply system includes vaporizer shell 3-2 in the present embodiment, has two along its axial restraint on vaporizer shell 3-2
The fixed support 3-11 of door type.Housing is built-in with helical form fuel gas pipeline 3-3, fuel gas pipeline 3-3 one end and meets inlet 3-1,
Another termination vaporizer gas outlet 3-9.Water inlet 3-8 and delivery port 3-5, vaporizer are connected to respectively at vaporizer shell both ends
Gas outlet 3-9 connections supply air line 3-10, supply air line 3-10 is folded upward at being supported on two fixed support 3-11, solid two
Voltage-stablizer 3-7 is installed on supply air line 3-10 between fixed rack 3-11.This example is formed with vapour in vaporizer shell 3-2 upper surfaces
Change device filler 3-6, vaporizer filler 3-6 is furnished with plug；Vaporizer shell lower surface is formed with vaporizer sewage draining exit 3-4, and
Equipped with block head.
The drain pipe road of gas storage system connects with the inlet 3-1 of air supply system through connecting line 2 in the present embodiment.Connection
Pipeline 2 is connected using copper pipe or stainless steel flexible hose, according to copper pipe, will be designed to qualitative pipe as needed, and set using O-shaped
Meter, avoid vibrating the influence to copper pipe.
Gas storage system and air supply system one reinstate high-strength bolt in steel cylinder mounting seat 6 in the present embodiment,
The bottom of LNG steel cylinders 1 is provided with one and encloses backplate 7 for protecting pressure inlet 1-9 and connecting line 2, and some apertures are provided with backplate 7,
The air exchange in shield is not influenceed, and so as to not influence the work from pressure piping of LNG steel cylinders 1, but and can is played to pipeline
The effect of security protection, backplate 7 are mounted on steel cylinder erection support 6.
Gas storage system meets claimed below in the present embodiment：The capacity of a.LNG steel cylinders 1 is big, meets the requirement of fork truck, and
Meet relevant criterion certification；B. it is compact-sized, without departing from fork truck outline after installation；C. band protective cover 1-4 and cover plate 1-3, will
The parts such as valve, pipeline, instrument on LNG steel cylinders are effectively protected, prevent pipeline by the external world damage and LNG leakage to it is artificial into
Injury；D. filling opening 1-7 position suitables, facilitate liquid feeding.
Air supply system meets claimed below in this example：A. vaporizer shell 3-2 capacity is big, meets that the engine of fork truck is cold and opens
It is dynamic to require；B. it is compact-sized, meet the installation requirement of fork truck；C. voltage-stablizer can voluntarily adjust pressure.
The concrete operating principle of the present embodiment is as follows：
1st, topping up：The dust cap on filling opening 1-7 is extracted, liquid feeding rifle is connected with filling opening 1-7, LNG is by filling opening 1-7
Flow into, by feed liquor check valve 1-16, into steel cylinder inner bag；
2nd, store：After LNG enters steel cylinder inner bag, insulation is thermally shielded to it by heat-insulation layer, is maintained as far as possible in steel cylinder
LNG temperature is -165 DEG C or so.But it is heat-insulated can not possibly fully and completely, with the passage of storage time, the temperature of the LNG in steel cylinder
It can rise, part LNG can be vaporized, and the pressure of steel cylinder inner bag can gradually rise, when air pressure rises to certain value, the master on steel cylinder
Safety valve 1-13 can open emptying；When pressure sharply rises to a certain value, the secondary safety valve 1-14 on steel cylinder can also be opened
Emptying；
3rd, supply：A. open LNG and go out liquid stop valve 1-1, LNG (pressure about 1~1.59MPa, -165 DEG C) and flow into out liquid list
To valve 1-15, the fuel gas pipeline 3-3 being immersed in coolant is flowed into from inlet 3-1 through connecting line 2, by absorbing coolant
Heat, be converted to normal temperature gaseous natural gas (pressure about 1~1.59MPa, 20 DEG C)；Voltage-stablizer 3-7 is then flowed into be decompressed to
Pressure needed for engine, then engine is supplied to by gaseous natural gas outlet 13 and used；B. drawn from engine partial circulating
Coolant, entered by water inlet 3-8 in vaporizer assemblies 3-2, then from delivery port 3-5 return engine partial circulating cooling tubes
Road, in its cyclic process, its heat transfer is given to fuel gas pipeline 3-3, so as to which LNG is heated and vaporized；(note：Voltage stabilizing
Device pressure adjustable section, main engine plants can voluntarily adjust according to the pressure needed for engine)
4th, vaporizer shell 3-2 adds water and excludes dirt：A. the block head on vaporizer sewage draining exit 3-4 is backed out, you can row
Except the impurity in vaporizer shell 3-2；B. the plug on the 3-6 of vaporizer filler is turned on, you can vaporizer assemblies 3-2 is added
Water.
Claims (6)
1. a kind of fork truck stores up air supply system with LNG, it is characterised in that：Including gas storage system and air supply system and connecting line (2)；
The gas storage system includes LNG steel cylinders (1), and LNG steel cylinders one end center is formed with connecting interface (1-23), connecting interface
A circle cartridge type shield (1-4) is externally provided with, LNG steel cylinders (1) are fixed in the shield one end, and the other end sets cover plate (1-3), the shield
In cover, the liquid feeding pipeline connected with connecting interface (1-23), drain pipe road and emptying pipeline are provided between cover plate and steel cylinder, it is described
The connecting interface lower position of LNG steel cylinders (1) passes through from pressure piping and connects connecting interface；
The air supply system includes vaporizer shell (3-2), and the helical form fuel gas pipeline (3-3) being placed in housing, combustion gas
Pipeline (3-3) one is terminated with inlet (3-1), another termination vaporizer gas outlet (3-9), distinguishes at vaporizer shell both ends
It is connected to water inlet (3-8) and delivery port (3-5), vaporizer gas outlet (3-9) connection supply air line (3-10), supply air line
Voltage-stablizer (3-7) is installed on (3-10)；
The drain pipe road of connecting line (2) the connection gas storage system and the inlet (3-1) of air supply system；
The liquid feeding pipeline includes filling opening (1-7), LNG feed liquors flexible pipe (1-2) and feed liquor check valve (1-16), filling opening (1-
7) shield (1-4) outer wall bottom is fixed on through filling opening support (1-21), the filling opening is through LNG feed liquors flexible pipe (1-2) and feed liquor
The connecting interface (1-23) of check valve (1-16) connection LNG steel cylinders (1)；
LNG is installed on the drain pipe road liquid stop valve (1-1) and go out liquid check valve (1-15)；
The emptying pipeline includes gas returning port (1-5), vent stop valve (1-8), main safety valve (1-13) and secondary safety valve (1-
14), wherein main safety valve (1-13) connects the connecting interface (1- of LNG steel cylinders (1) with secondary safety valve (1-14) by the road respectively
23), the gas returning port (1-5) is fixed on shield (1-4) outer wall through mounting bracket (1-22), the gas returning port through empty connecting tube,
The connecting interface (1-23) of vent stop valve (1-8) connection LNG steel cylinders (1)；
It is described to include pressure inlet (1-9), pressure regulator valve (1-17) and from pressure charging system stop valve (1-20), the increasing from pressure piping
Connecting interface (1-23) lower position of pressure pipe (1-9) one end connection LNG steel cylinders (1), connection LNG steel cylinders (1), other end connection
The connecting interface (1-23) of LNG steel cylinders (1), it is equipped with wherein on pressure inlet (1-9) from pressure charging system stop valve (1-20) and pressure regulation
Valve (1-17), pressure inlet (1-9) is arranged along LNG steel cylinders (1) lower edge, and some heat transmission fins are welded thereon.
2. air supply system is stored up with LNG according to the fork truck that claim 1 is stated, it is characterised in that：LNG steel cylinders (1) level frame in
On steel cylinder erection support (6), steel cylinder erection support (6) fixes steel cylinder, LNG steel cylinders (1) and steel cylinder by mount cable-tie (1-19)
Cushion pad (1-18) is set between erection support (6) and mount cable-tie (1-19).
3. fork truck according to claim 2 stores up air supply system with LNG, it is characterised in that：LNG steel cylinders (1) bottom is set
There is a circle to be used for the backplate (7) for protecting pressure inlet (1-9) and connecting line (2), some apertures, the shield are provided with backplate (7)
Plate (7) is mounted on steel cylinder erection support (6).
4. fork truck according to claim 1 stores up air supply system with LNG, it is characterised in that：On the vaporizer shell (3-2)
Surface is formed with vaporizer filler (3-6), and vaporizer filler (3-6) is furnished with plug；Vaporizer shell lower surface is formed with vaporization
Device sewage draining exit (3-4), and it is furnished with block head.
5. fork truck according to claim 4 stores up air supply system with LNG, it is characterised in that：On the vaporizer shell (3-2)
There is the fixed support (3-11) of two door types along its axial restraint, the supply air line (3-10) is by vaporizer gas outlet
(3-9) place is folded upward at after-frame on two fixed supports (3-11), and the voltage-stablizer (3-7) is installed on two fixed supports (3-11)
Between supply air line (3-10) on.
6. fork truck according to claim 1 stores up air supply system with LNG, it is characterised in that：The connecting line (2) uses copper
Pipe or stainless steel flexible hose connection；According to copper pipe, then calibration tube is designed to, and use O-shaped design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349827.8A CN104929813B (en) | 2015-06-23 | 2015-06-23 | Fork truck stores up air supply system with LNG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349827.8A CN104929813B (en) | 2015-06-23 | 2015-06-23 | Fork truck stores up air supply system with LNG |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104929813A CN104929813A (en) | 2015-09-23 |
| CN104929813B true CN104929813B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510349827.8A Active CN104929813B (en) | 2015-06-23 | 2015-06-23 | Fork truck stores up air supply system with LNG |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609906A (en) * | 2015-10-24 | 2017-05-03 | 河北斯玛特深冷技术有限公司 | Novel LNG vehicle-mounted cylinder |
| CN112810432B (en) * | 2021-01-11 | 2022-07-29 | 东风汽车股份有限公司 | Integrated fuel supply device of light LNG (liquefied Natural gas) commercial vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235274A (en) * | 2010-04-27 | 2011-11-09 | 潍柴动力股份有限公司 | Liquefied fuel power system and method for operating same |
| CN204827712U (en) * | 2015-06-23 | 2015-12-02 | 杭叉集团股份有限公司 | LNG stores up gas supply system for fork truck |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537656A (en) * | 2012-01-12 | 2012-07-04 | 张家港韩中深冷科技有限公司 | Independent liquefied natural gas supply device |
| CN202884469U (en) * | 2012-11-08 | 2013-04-17 | 东风汽车公司 | Vehicle liquefied natural gas bottle control pipeline structure |
| CN103615659A (en) * | 2013-11-22 | 2014-03-05 | 江苏现代造船技术有限公司 | Gasification and self-supercharging device for LNG (Liquefied Natural Gas) |
| CN104088726B (en) * | 2014-07-21 | 2017-02-15 | 成都市天仁自动化科技有限公司 | Vehicle-mounted natural gas supply system and stable gas supply method thereof |
-
2015
- 2015-06-23 CN CN201510349827.8A patent/CN104929813B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235274A (en) * | 2010-04-27 | 2011-11-09 | 潍柴动力股份有限公司 | Liquefied fuel power system and method for operating same |
| CN204827712U (en) * | 2015-06-23 | 2015-12-02 | 杭叉集团股份有限公司 | LNG stores up gas supply system for fork truck |
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| CN104929813A (en) | 2015-09-23 |
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