CN204879441U - Liquefied natural gas gas cylinder for car - Google Patents
Liquefied natural gas gas cylinder for car Download PDFInfo
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- CN204879441U CN204879441U CN201520654483.7U CN201520654483U CN204879441U CN 204879441 U CN204879441 U CN 204879441U CN 201520654483 U CN201520654483 U CN 201520654483U CN 204879441 U CN204879441 U CN 204879441U
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- Prior art keywords
- valve
- interface
- return
- topping
- air
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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 discloses a liquefied natural gas gas cylinder for car. The gas cylinder includes the bottle subassembly, through the multi -functional valve of crossover sub dress on the bottle subassembly, open on the valve body of multi -functional valve have the inside entry of topping up, with the gas entry, with liquid entry, level gauge interface, economic air throttle interface, with liquid stop valve interface, return -air stop valve interface, safety valve interface, overflow that valve interface, topping up outside enter the mouth, the return -air interface, corresponding subassembly is equipped with on each interface to form usefulness gas passageway, with liquid passageway, return -air passageway and ressure measurement passageway. With the process of the partial valve among prior art redesign, install respectively on a common valve body of porous similar short columniform on this gas cylinder, form a multi -functional valve. This valve assembles on the crossover sub in the assembly of gas cylinder anterior segment process, the back that is up to the standards as a part of LNG gas cylinder, and processing technology nature is good.
Description
Technical field
The utility model relates to a kind of automobile liquefied natural gas bottle, is particularly useful for the automobile liquefied natural gas bottle with crossover sub, belongs to low-temperature heat-insulation pressure container applied technical field.
Background technique
Liquefied natural gas bottle is a kind of cryogenic liquide insulated gas cylinder, in background technique, current liquefied natural gas bottle manufacturer both domestic and external is all the Placement adopting " distributing head-stainless-steel pipe-control valve-stainless-steel pipe-connecting head-exterior line " in installing of its control valve, namely to be welded many stainless-steel pipes at multiple jointings of distributing head, then stainless-steel pipe is welded to one end of control valve, the other end of valve is connected with exterior line with jointing by the stainless-steel pipe that is welded again.
The major defect that this Placement exists in actual use is that leakage point is many, manufacture and difficult in maintenance.Once valve has damage, must cutting be carried out to stainless-steel pipe and weld maintenance or the replacing that just can carry out valve, the increase that the long stainless-steel pipe that distributing head is external simultaneously can cause heat to transmit, is unfavorable for the thermal insulation of low temperature cylinder, and adds weld leakage point.
In addition, weld up when between valve with valve body, stainless-steel pipe is gas cylinder assembling, technology capability is not so good.For overcoming the deficiency of above existence, the distributing head of Vehicular liquefied natural gas cylinder being developed, distributing head is designed to two-part: crossover sub and multifunction valve valve body, crossover sub installs multifunction valve.Eliminate the connecting tube between each valve and crossover sub, decrease leakage point, structure is compacter and attractive in appearance, and Security is more reliable, and technology capability is good, fast easy to maintenance.
Model utility content
The utility model aims to provide a kind of automobile liquefied natural gas bottle, part valve of the prior art is passed through by this gas cylinder redesigning, is arranged on the common valve body of the similar short cylindrical shape of a porous respectively, forms a multifunction valve.This valve is in the assembling of gas cylinder front-end-of-line as parts of LNG gas cylinder, is assemblied on crossover sub after the assay was approved, and technology capability is good.
To achieve these goals, the technological scheme that the utility model adopts is:
A kind of automobile liquefied natural gas bottle, comprises bottle assembly, is contained in the multifunction valve on bottle assembly by crossover sub; Its structural feature is, the valve body of described multifunction valve has topping up interior inlet, with gas entrance, with liquid entrance, interface of the level gauge, economic air throttle interface, uses liquid shut off valve interface, return-air shut off valve interface, relief valve connection, Restrictor Valves interface, topping up outside entrance, return-air interface;
Described topping up interior inlet is equipped with topping up check valve assembly, described gas entrance is equipped with crossover sub, level meter adapter assembly described interface of the level gauge is equipped with, described economic air throttle interface is equipped with economic motion valve assemblage, described liquid shut off valve interface is equipped with fluid shut-off valve assemblies, described return-air shut off valve interface is equipped with return-air shut-off valve assemblies, described relief valve connection is equipped with safety valve, described Restrictor Valves interface is equipped with Restrictor Valves joint, the outside entrance of described topping up is equipped with topping up safety check joint, return-air stop valve joint described return-air interface is equipped with,
Described gas entrance, economic air throttle interface, can be connected to form successively with liquid shut off valve interface, Restrictor Valves interface and to use gas passage; Described liquid entrance, can be connected to form successively with liquid shut off valve interface, Restrictor Valves interface and to use liquid passage; Described gas entrance, return-air shut off valve interface, return-air interface can be connected to form return gas channel successively; The outside entrance of described topping up, topping up interior inlet are connected to form topping up passage; Described gas entrance, relief valve connection are connected to form pressure measurement passage.
According to embodiment of the present utility model, can also do further to optimize to the utility model, the technological scheme below for being formed after optimization:
Preferably, the described bottle assembly heat insulation layer that comprises shell, inner bag and vacuumize; The double-layer vacuum structure that this shell, inner bag and thermal insulation layer are formed.
Described bottle assembly is provided with the fixing-assembly primarily of gas cylinder mounting assembly, yielding rubber band, buffer plate and fixing steel band assembly composition.
In order to protect multifunction valve and attachment component, one end that multifunction valve installed by described bottle assembly is provided with guard ring.
Described multifunction valve is contained on described crossover sub by bolt assembly and bullet pad.
In order to ensure the use safety of gas cylinder, described relief valve connection is equipped with cross fitting, other three ends of this cross fitting are equipped with main safety valve, secondary safety valve and pressure gauge respectively.
As a kind of concrete structural type, described gas entrance is equipped with lining, the valve body that this hub sections is stretched out, described crossover sub is contained on the extension of this lining by Sealing.Further, described lining is built with interior safety check.
Above structure, the utility model adopts a kind of multifunction valve at Vehicular liquefied natural gas cylinder, it is by interior safety check of the prior art, Restrictor Valves, economic air throttle, the members of topping up safety check and return-air/fluid stop valve is through redesigning, be arranged on the common valve body of the similar short cylindrical shape of a porous respectively, eliminate the valve body of each valve, eliminate the connecting tube between each valve and crossover sub, decrease leakage point, structure is compacter, crossover sub and valve diameter do not increase simultaneously, meet LNG gas cylinder crossover sub to become littleization and light-weighted design direction, reduce heat trnasfer.Each valve member adopts with valve body and is threaded, technology capability and maintenance good.
Compared with prior art, the beneficial effects of the utility model are:
1) in the multifunction valve adopted, multiple valve shares a valve body, and eliminate independently valve body, cost reduces greatly, more compact structure, more convenient operation;
2) multifunction valve adopted eliminates the connecting tube between each valve and crossover sub, decreases leakage point, and Security is more reliable;
3) technology capability is good.This valve installs with screw at gas cylinder front-end-of-line after the assay was approved as parts of LNG gas cylinder again, does not need reprocessing, beautiful shape.Solve in prior art, during the assembling of part valve, welding is got on, once misoperation, remedies and is difficult to even scrap.And weld inconvenience polishing, be difficult to ensure beautiful shape.
4) each valve member and valve body, all adopt between multifunction valve and crossover sub and removably connect, fast easy to maintenance.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the utility model embodiment;
Fig. 2 is Fig. 1 left view;
Fig. 3 is the structural representation of multifunction valve;
Fig. 4 is the X-X sectional drawing of Fig. 3;
Fig. 5 is the Y-Y sectional stretch-out view of Fig. 3;
Fig. 6 is the Z-Z sectional stretch-out view of Fig. 3;
Fig. 7 is valve body structure schematic diagram.
Embodiment
A kind of automobile liquefied natural gas bottle, primarily of the large parts composition of bottle assembly 1, fixing-assembly 2, guard ring 3, crossover sub 4, multifunction valve 5, bolt assembly and bullet pad 6 etc. four.
Shown in Fig. 1, bilayer (vacuum) structure that bottle assembly 1 is made up of shell, inner bag and the heat insulation layer etc. that vacuumizes, shell and inner bag are all the containers of cylindrical stack shell two assembly welding end socket, the rear and front end of shell and inner bag is welded and fixed again with crossover sub and supporting frame, inner bag is used for storing LNG Liquefied natural gas, and its outer wall is tied with multilayer insulant, has superpower heat-shielding performance, high vacuum is pumped in space between two-layer, the adiabatic system that common formation is good.The design of shell and support system can bear haulage vehicle relevant external force produced in motion.
Fixing-assembly 2 is made up of gas cylinder mounting assembly, yielding rubber band, buffer plate and fixing steel band assembly.Gas cylinder mounting assembly is semicircular weld assembly, totally two.Gas cylinder yielding rubber band, buffer plate and fixing steel band assembly are fixed on gas cylinder mounting assembly.
Gas cylinder mounting assembly have prevent gas cylinder from occurring vibrations, loosen, the function of slippage or rotation, other assembly has anti-sliding stop, reduces the effect impacting, avoid scratching bottle.Guard ring 3 is annular stainless steel coils, with 4 channel-section steels together with bottle shell assembly welding, protects valve, instrument system.Multifunction valve 5 is made up of valve body 7, level meter adapter assembly 8, return-air stop valve 9, return-air stop valve joint 10, topping up check valve assembly 11, topping up safety check joint 12, fluid shut-off valve assemblies 13, Restrictor Valves assembly 14, Restrictor Valves joint 15, interior safety check 16, plug 17, economic motion valve assemblage 18, connecting tube 19, cross fitting 20, secondary safety valve 21, main safety valve 22, pressure gauge 23, controls the topping up of gas cylinder and uses liquid.The multifunction valve 5 assembled 6 bolt assemblies and bullet pad are arranged on crossover sub 4.
Interior safety check 24 is first arranged on lining 25 by screw thread, then their are loaded is placed with in cylinder shape groove corresponding to valve body 7 bottom groove of Sealing 26 and crossover sub top.Another two pipe passage places corresponding with on crossover sub, multifunction valve valve body bottom surface are provided with lining 25 and Sealing 26, and the multifunction valve assembled is fixed with the crossover sub 4 be welded on LNG gas cylinder by 6 groups of bolt assemblies and bullet pad 6 again.
The valve body 7 of described multifunction valve 5 has topping up interior inlet A, with gas entrance B, with liquid entrance C, interface of the level gauge D, economic air throttle interface E, use liquid shut off valve interface F, return-air shut off valve interface G, relief valve connection I, Restrictor Valves interface J, the outside entrance M of topping up, return-air interface R, described topping up interior inlet A is equipped with topping up check valve assembly 11, described gas entrance B is equipped with crossover sub 4, described interface of the level gauge D is equipped with level meter adapter assembly 8, described economic air throttle interface E is equipped with economic motion valve assemblage 18, described liquid shut off valve interface F is equipped with fluid shut-off valve assemblies 13, described return-air shut off valve interface G is equipped with return-air stop valve 9, described relief valve connection I is equipped with safety valve, described Restrictor Valves interface J is equipped with Restrictor Valves joint 15, the outside entrance M of described topping up is equipped with topping up safety check joint 12, described return-air interface R is equipped with return-air stop valve joint 10, described gas entrance B, economic air throttle interface E, can be connected to form successively with liquid shut off valve interface F, Restrictor Valves interface J and to use gas passage, described liquid entrance C, can be connected to form successively with liquid shut off valve interface F, Restrictor Valves interface J and to use liquid passage, described gas entrance B, return-air shut off valve interface G, return-air interface R can be connected to form return gas channel successively, the outside entrance M of described topping up, topping up interior inlet A are connected to form topping up passage, described gas entrance B, relief valve connection I are connected to form pressure measurement passage.
The mode of execution of the automobile liquefied natural gas bottle of dress multifunction valve:
1. during gas cylinder topping up, open return-air stop valve 9, close fluid stop valve 13, LNG liquid and enter from topping up safety check joint 12, flow through topping up check valve assembly 6 and enter gas cylinder through gas cylinder liquid-filling pipe again.Meanwhile, a bottle internal upper part gas part flows through return-air stop valve 9 to gas returning port, is connected with exterior line.Another part enters valve body through main safety valve 22, secondary safety valve 21, pressure gauge 23 and level meter, the pressure of liquid and change in location in the whole process of their detection of dynamic, when bottle internal air pressure exceedes safety valve release pressure, and safety valve work.When reaching desired location, then stop topping up, topping up safety check 11 cuts out automatically.
2., during gas cylinder liquid, open return-air stop valve 9 and fluid shut-off valve assemblies 13.
1) when gas pressure in bottle is higher than economic air throttle 18 setting pressure, economic air throttle 18 is opened, and interior safety check 16 cuts out, and in bottle, gas is through economic air throttle 18, fluid stop valve 13, Restrictor Valves 14, and gas is able to preferential use.
2) when gas pressure in bottle is lower than economic air throttle 18 setting pressure, economic air throttle 18 is closed.In bottle, liquid is through interior safety check 16, is connected to fluid stop valve 13, Restrictor Valves 14 with external pipe.When with in liquid pipeline during overpressure, partially liq returns gas cylinder through the throttling pore of interior safety check 16, maintains balance.
The utility model welds when solving sub valve assembling in the middle part of prior art up hill and dale, once misoperation, remedies and is difficult to even scrap.And weld inconvenience polishing, unsightly.And the connecting tube eliminated between each valve and distributing head, decrease leakage point, structure is more compact attractive in appearance, and Security is more reliable.Maintenance is good, when valve breaks down, backs out as long as unclamp screw thread, convenient and swift.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the utility model, and be not used in restriction scope of the present utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen into the application's claims limited range.
Claims (8)
1. an automobile liquefied natural gas bottle, comprises bottle assembly (1), is contained in the multifunction valve (5) on bottle assembly (1) by crossover sub (4); It is characterized in that, the valve body (7) of described multifunction valve (5) has topping up interior inlet (A), with gas entrance (B), with liquid entrance (C), interface of the level gauge (D), economic air throttle interface (E), use the outside entrance (M) of liquid shut off valve interface (F), return-air shut off valve interface (G), relief valve connection (I), Restrictor Valves interface (J), topping up, return-air interface (R);
Described topping up interior inlet (A) is equipped with topping up check valve assembly (11), described gas entrance (B) is equipped with crossover sub (4), level meter adapter assembly (8) described interface of the level gauge (D) is equipped with, described economic air throttle interface (E) is equipped with economic motion valve assemblage (18), described liquid shut off valve interface (F) is equipped with fluid shut-off valve assemblies (13), described return-air shut off valve interface (G) is equipped with return-air stop valve (9), described relief valve connection (I) is equipped with safety valve, described Restrictor Valves interface (J) is equipped with Restrictor Valves joint (15), the outside entrance (M) of described topping up is equipped with topping up safety check joint (12), described return-air interface (R) is equipped with return-air stop valve joint (10),
Described gas entrance (B), economic air throttle interface (E), can be connected to form successively with liquid shut off valve interface (F), Restrictor Valves interface (J) and to use gas passage; Described liquid entrance (C), can be connected to form successively with liquid shut off valve interface (F), Restrictor Valves interface (J) and to use liquid passage; Described gas entrance (B), return-air shut off valve interface (G), return-air interface (R) can be connected to form return gas channel successively; The outside entrance (M) of described topping up, topping up interior inlet (A) are connected to form topping up passage; Described gas entrance (B), relief valve connection (I) are connected to form pressure measurement passage.
2. automobile liquefied natural gas bottle according to claim 1, is characterized in that, the heat insulation layer that described bottle assembly (1) comprises shell, inner bag and vacuumizes; The double-layer vacuum structure that this shell, inner bag and thermal insulation layer are formed.
3. automobile liquefied natural gas bottle according to claim 1, is characterized in that, described bottle assembly (1) is provided with the fixing-assembly (2) primarily of gas cylinder mounting assembly, yielding rubber band, buffer plate and fixing steel band assembly composition.
4. automobile liquefied natural gas bottle according to claim 1, is characterized in that, one end that described bottle assembly (1) installs multifunction valve (5) is provided with guard ring (3).
5. automobile liquefied natural gas bottle according to claim 1, is characterized in that, described multifunction valve (5) is contained on described crossover sub (4) by bolt assembly and bullet pad (6).
6. according to the automobile liquefied natural gas bottle one of claim 1-5 Suo Shu, it is characterized in that, described relief valve connection (I) is equipped with cross fitting (20), other three ends of this cross fitting (20) are equipped with main safety valve (22), secondary safety valve (21) and pressure gauge (23) respectively.
7. according to the automobile liquefied natural gas bottle one of claim 1-5 Suo Shu, it is characterized in that, described gas entrance (B) is equipped with lining (25), the valve body (12) that this lining (25) part is stretched out, described crossover sub (4) is contained on the extension of this lining (25) by Sealing (26).
8. automobile liquefied natural gas bottle according to claim 7, is characterized in that, described lining (25) is built with interior safety check (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654483.7U CN204879441U (en) | 2015-08-27 | 2015-08-27 | Liquefied natural gas gas cylinder for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520654483.7U CN204879441U (en) | 2015-08-27 | 2015-08-27 | Liquefied natural gas gas cylinder for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204879441U true CN204879441U (en) | 2015-12-16 |
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ID=54823812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520654483.7U Expired - Fee Related CN204879441U (en) | 2015-08-27 | 2015-08-27 | Liquefied natural gas gas cylinder for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204879441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065904A (en) * | 2015-08-27 | 2015-11-18 | 江南工业集团有限公司 | Liquefied natural gas bottle for automobile |
| CN111878704A (en) * | 2020-08-13 | 2020-11-03 | 西安航天远征流体控制股份有限公司 | Combination valve |
-
2015
- 2015-08-27 CN CN201520654483.7U patent/CN204879441U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065904A (en) * | 2015-08-27 | 2015-11-18 | 江南工业集团有限公司 | Liquefied natural gas bottle for automobile |
| CN111878704A (en) * | 2020-08-13 | 2020-11-03 | 西安航天远征流体控制股份有限公司 | Combination valve |
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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: 20151216 Termination date: 20180827 |