CN207990199U - The front supporting device of automobile liquefied natural gas bottle - Google Patents
The front supporting device of automobile liquefied natural gas bottle Download PDFInfo
- Publication number
- CN207990199U CN207990199U CN201820257428.8U CN201820257428U CN207990199U CN 207990199 U CN207990199 U CN 207990199U CN 201820257428 U CN201820257428 U CN 201820257428U CN 207990199 U CN207990199 U CN 207990199U
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- Prior art keywords
- support neck
- neck tube
- liner
- supporting block
- natural gas
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Abstract
A kind of front supporting device of automobile liquefied natural gas bottle, the utility model includes the shell of gas cylinder, liner, the case nose is fixedly installed support neck tube I, the liner front end is fixedly installed support neck tube II, the support neck tube I of the shell is located in the support neck tube II of the liner, and supporting block is installed between the radial direction of the support neck tube I of the support neck tube II and shell of liner front end；The supporting block is blocky in circular arc, and central angle is 80 100 °；The periphery both ends of the supporting block are cylindrical surface, and centre is circular conical surface.Advantage is reasonable in design, while ensureing gas cylinder front supporting device intensity, reduce the contact surface of supporting block outer surface, reduce the heat being passed in gas cylinder, gas cylinder leaking heat can effectively be reduced, extend the time that gas cylinder pressure under filling liquid state rises to safety valve jumping up pressure, reduces gas waste.
Description
Technical field
The utility model is related to a kind of support devices of cryogenic insulated cylinder, liquefy more particularly, to a kind of automobile natural
The front supporting device of gas bottle, belongs to field of automobile.
Background technology
LNG (liquefied natural gas) automobile is the gas-fueled vehicles of new generation using low temperature liquid natural gas as fuel, is protruded
Advantage is that LNG energy densities are big, and automobile continual mileage is long, and opposite automobile has significant economic benefit using diesel oil, gasoline.
Automobile liquefied natural gas bottle, liner are high vacuum multiple layer heat insulation form, shell for storing LNG, interlayer
It is used to support liner and forms confined space with liner, be equivalent to fuel tanks of automobile.
Automobile liquefied natural gas bottle includes mainly：Shell, liner are high vacuum multiple layer heat insulation between shell and liner
Layer, liner are fixed on the shell by the support device of rear and front end, and inner bladder outer wall is wound with multilayer insulant, while shell
High vacuum is pumped into space between liner, in favor of reducing leaking heat, the cryogenic liquid in liner is made to preserve the longer time.
Cylinder liner uses both ends support construction, bears the vibration and impact of liner in vehicle traveling.Currently, front supporting device is using solid
Determine connection type, the front head with liner and shell is connected and fixed respectively, and steel bar is fixedly welded on preceding branch after passing through support device
It supports on neck tube, front supporting device is fixed, deficiency is that leaking heat is larger, and gas cylinder static evaporation rate is daily in 1.9%/left and right.
Utility model content
In order to overcome the shortcomings of that leaking heat existing for above-mentioned front supporting device is big, the utility model provides a kind of automobile liquid
Change the front supporting device of natural gas cylinder.
Technical solution adopted by the utility model to solve its technical problems is：A kind of automobile liquefied natural gas bottle
Front supporting device, including the shell of gas cylinder, liner, the case nose are fixedly installed support neck tube I, and the liner front end is solid
Surely it is provided with support neck tube II, the support neck tube I of the shell is located in the support neck tube II of the liner, in liner front end
The support neck tube II and the shell support neck tube I radial direction between be installed with supporting block.
Further, the supporting block is blocky in circular arc, and central angle is 80-100 °；Preferably, the circular arc massive support block
Central angle be 90 °.
Further, the periphery both ends of the supporting block are cylindrical surface, and centre is circular conical surface.
Further, the Inner arc of the supporting block matches with the outer circle of the support neck tube I of the shell.
Further, the quantity of the supporting block is 2, and is installed in radial symmetric.
Further, the supporting block is fixedly connected by steel bar with the support neck tube II of the liner.
Further, one end of the steel bar is fixed in the open slot of the supporting block, the branch of the other end and the liner
Support neck tube II is fixedly connected.One end of the steel bar and the support neck tube II of the liner weld.
Further, the support stock material is G-11 fiber glass epoxies.
The utility model has the beneficial effects that it is reasonable in design, while ensureing gas cylinder front supporting device intensity, subtract
The contact surface of few supporting block outer surface, reduces the heat being passed in gas cylinder, can effectively reduce gas cylinder leaking heat, extends gas cylinder and is filling
Pressure rises to the time of safety valve jumping up pressure under liquid status, reduces gas waste.
Description of the drawings
Fig. 1 is the structural schematic diagram of the front supporting device of the utility model automobile liquefied natural gas bottle.
Fig. 2 is the supporting block schematic diagram of the utility model.
Fig. 3 is the A direction views of Fig. 2.
In figure：1. shell, 2. liners, 3. support neck tubes I, 4. support neck tubes II, 5. supporting blocks, 6. open slots, 7. circular cones
Face.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.But those skilled in the art should
Know, the present invention is not limited to listed specific implementation modes, as long as meeting the spirit of the present invention, should all be included in this
In the protection domain of invention.
Referring to attached drawing 1.A kind of front supporting device of automobile liquefied natural gas bottle of the utility model, including gas cylinder are outer
Shell 1, liner 2,1 front end of the shell are fixedly installed support neck tube I 3, and 2 front end of the liner is fixedly installed support neck tube II
4, the support neck tube I 3 of the shell 1 is located in the support neck tube II 4 of the liner 2, the support neck in 2 front end of liner
It is installed with supporting block 5 between the radial direction of the support neck tube I 3 of pipe II 4 and the shell 1, is used to support and fixes liner 2；
The quantity of the usual supporting block 5 is 2, and is symmetrically installed radially.In order to improve support while reducing heat transfer
Intensity selects stainless-steel thin-wall pipe to make the support neck tube I 3 and support neck tube II 4, the support neck tube I 3 and support neck tube
It is hanging structure between II 4, intensity is improved by fittable slackening device.
Referring to attached drawing 2,3.The supporting block 5 is blocky in circular arc, and the central angle of the supporting block 5 is 80-100 °.It is preferred that
, when the central angle of the circular arc massive support block 5 is 90 °, the stability of support is more preferable, leaking heat smaller.
Further, the periphery both ends of the supporting block 5 are cylindrical surface, and centre is circular conical surface 7, can using circular cone inclined-plane
The contact area for reducing the supporting block 5 and the support neck tube II 4 of the liner 2, effectively reduces leaking heat；The supporting block 5
The cylindrical surface of periphery uses rounding off with 7 transition position of circular conical surface, avoids stress concentration, can optimize the supporting block 5 by
Power situation.
Further, the Inner arc of the supporting block 5 matches with the outer circle of the support neck tube I 3 of the shell 1.
The supporting block 5 is fixedly connected by steel bar with the support neck tube II 4 of the liner 2, the ends the support neck tube II4
The interior step of portion's setting is by 5 axial restraint of the supporting block.
Further, one end of the steel bar is fixed in the open slot 6 of the supporting block 5, the other end and the liner 2
Support neck tube II 4 is fixedly connected, and the usual steel bar is fixedly connected with the support neck tube II 4 of the liner 2 using welding manner,
It prevents from vibrating so that the supporting block 5 is scurried out because of gas cylinder, forfeiture supporting role.
The material of the supporting block 5 is G-11 fiber glass epoxies, selects U.S.'s Spalding product of every excellent in mechanical performance
Board can greatly improve support neck tube I stressing conditions, reduce support neck tube I fatigue fracture risks.
Using the front supporting device of the utility model automobile liquefied natural gas bottle, according to GB/T18443.5《Vacuum is exhausted
Hot deep freeze refrigeration plant method for testing performance》：Gas cylinder is charged to volume by static evaporation rate measurement standard using liquid nitrogen as test(ing) medium
48 hours are at least stood after determining fullness rate, gas cylinder blow valve is opened, is intervened in blowdown piping when liner meter pressure is close to zero
Flowmeter, and other valves is kept to be closed；After the stability of flow of gas to be evaporated, and should be in the time no more than 1h
Be spaced acquisition, recording flowmeter indicating value, environment temperature, atmospheric pressure, flowmeter inlet temperature and pressure, the record time for for 24 hours,
Gas cylinder static evaporation rate is 1.4%.
It should be noted that above-described embodiment is exemplary rather than the limitation present invention, those skilled in the art will design very
Right of more alternate embodiments without departing from this patent.
Claims (10)
1. a kind of front supporting device of automobile liquefied natural gas bottle, including the shell of gas cylinder, liner, it is characterized in that：It is described
Case nose is fixedly installed support neck tube I, and the liner front end is fixedly installed support neck tube II, the support neck of the shell
Pipe I is located in the support neck tube II of the liner, in the support neck of the support neck tube II and the shell of liner front end
It is installed with supporting block between the radial direction of pipe I.
2. the front supporting device of automobile liquefied natural gas bottle according to claim 1, it is characterized in that：The supporting block is in
Circular arc is blocky, and central angle is 80-100 °.
3. the front supporting device of automobile liquefied natural gas bottle according to claim 2, it is characterized in that：The supporting block
Periphery both ends are cylindrical surface, and centre is circular conical surface.
4. the front supporting device of automobile liquefied natural gas bottle according to claim 3, it is characterized in that：The supporting block
Inner arc matches with the outer circle of the support neck tube I of the shell.
5. the front supporting device of automobile liquefied natural gas bottle according to claim 4, it is characterized in that：The circular arc is blocky
The central angle of supporting block is 90 °.
6. the front supporting device of automobile liquefied natural gas bottle according to claim 1, it is characterized in that：The supporting block
Quantity is 2, and is installed in radial symmetric.
7. the front supporting device of automobile liquefied natural gas bottle according to claim 6, it is characterized in that：The supporting block is logical
Steel bar is crossed to be fixedly connected with the support neck tube II of the liner.
8. the front supporting device of automobile liquefied natural gas bottle according to claim 7, it is characterized in that：The one of the steel bar
End is fixed in the open slot of the supporting block, and the other end is fixedly connected with the support neck tube II of the liner.
9. the front supporting device of automobile liquefied natural gas bottle according to claim 8, it is characterized in that：The one of the steel bar
End and the support neck tube II of the liner weld.
10. the front supporting device of automobile liquefied natural gas bottle according to claim 1, it is characterized in that：The supporting block
Material is G-11 fiber glass epoxies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820257428.8U CN207990199U (en) | 2018-02-13 | 2018-02-13 | The front supporting device of automobile liquefied natural gas bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820257428.8U CN207990199U (en) | 2018-02-13 | 2018-02-13 | The front supporting device of automobile liquefied natural gas bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207990199U true CN207990199U (en) | 2018-10-19 |
Family
ID=63825763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820257428.8U Active CN207990199U (en) | 2018-02-13 | 2018-02-13 | The front supporting device of automobile liquefied natural gas bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207990199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503507A (en) * | 2020-05-22 | 2020-08-07 | 大连理工大学 | On-vehicle low temperature heat insulation gas cylinder of interior intermediate layer formula |
-
2018
- 2018-02-13 CN CN201820257428.8U patent/CN207990199U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503507A (en) * | 2020-05-22 | 2020-08-07 | 大连理工大学 | On-vehicle low temperature heat insulation gas cylinder of interior intermediate layer formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 130103 Chaoyang District Yumin Road, Changchun, Changchun, Jilin Patentee after: Changchun Zhiyuan new energy equipment Co., Ltd Address before: 130000 No. 888, Min Yu Road, Chaoyang economic development zone, Jilin, Changchun Patentee before: Changchun Zhiyuan new energy equipment Co., Ltd. |
|
| CP03 | Change of name, title or address |