CN211423971U - Pressure vessel and vehicle that has it - Google Patents
Pressure vessel and vehicle that has it Download PDFInfo
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- CN211423971U CN211423971U CN201922243333.8U CN201922243333U CN211423971U CN 211423971 U CN211423971 U CN 211423971U CN 201922243333 U CN201922243333 U CN 201922243333U CN 211423971 U CN211423971 U CN 211423971U
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- pressure vessel
- inner container
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- container
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Abstract
The utility model discloses a pressure vessel and vehicle that has it, this pressure vessel includes: the inner container is internally provided with an air storage space; the valve seat is connected with the inner container and comprises a main body and a convex part, the convex part is arranged on the main body and faces the inner container, the main body is provided with a first connecting part, the convex part is provided with a second connecting part, the inner container is provided with a first matching part matched with the first connecting part and a second matching part matched with the second connecting part, and therefore the valve seat and the inner container are mutually locked in the axial direction and the radial direction of the pressure container; the valve is internally provided with an airflow channel and extends into the air storage space. The utility model discloses pressure vessel, through setting up connecting portion and cooperation portion, can improve disk seat and inner bag at pressure vessel's axial and radial connection reliability, improve pressure vessel's gas tightness.
Description
Technical Field
The utility model relates to a vehicle manufacturing technical field particularly, relates to a pressure vessel and have pressure vessel's vehicle.
Background
The prior art pressure vessels, the seal between the metal valve seat and the non-metal liner, often employ interlocking liner and boss structures, which have proven effective in certain applications, such as for Compressed Natural Gas (CNG) fuel containers. However, in certain high pressure (e.g., 70MPa) applications, distortion of the plastic liner material adjacent the boss has been noted, which may result in a tendency for the plastic liner to be pulled out of the keyway. Distortion of this region in high pressure applications is due to the presence of high pressure gas. In the keyway between the liner and boss, high pressure gas permeates through the liner material and then evolves as the pressure in the vessel drops. Thus, gas that permeates the interface between the liner and the boss may have a higher pressure than the gas within the container, for example, when gas is vented from the container, the pressure differential between the liner and the boss may cause the liner material to be forced out of the keyway, thereby causing leakage at the interface of the liner and the boss.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a pressure vessel, so that the pressure vessel has the advantages of improving the axial and radial connection reliability of the valve seat and the inner container in the pressure vessel, and improving the air tightness of the pressure vessel.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a pressure vessel, the pressure vessel comprising: the inner container is internally provided with an air storage space; the valve seat is connected with the inner container and comprises a main body and a convex part, the convex part is arranged on the main body and faces the inner container, the main body is provided with a first connecting part, the convex part is provided with a second connecting part, the inner container is provided with a first matching part matched with the first connecting part and a second matching part matched with the second connecting part, and therefore the valve seat and the inner container are mutually locked in the axial direction and the radial direction of the pressure container; and the valve is internally provided with an airflow channel and extends into the air storage space.
According to the utility model discloses pressure vessel has and can improve disk seat and inner bag axial and radial connection reliability at pressure vessel, improves advantages such as pressure vessel's gas tightness.
In addition, the pressure vessel according to the above embodiment of the present invention may further have the following additional technical features:
according to the utility model discloses a some embodiments, first connecting portion include radial locking portion, the second connecting portion include axial locking portion, first cooperation portion includes radial cooperation portion, second cooperation portion includes axial cooperation portion, wherein, radial locking portion with radial cooperation portion links to each other in order that pressure vessel's footpath is spacing the inner bag, axial locking portion with axial cooperation portion links to each other in order to spacing on pressure vessel's the axial the inner bag.
According to some embodiments of the present invention, the radial locking portion is an edge of the first limit groove of the axial extension of the pressure vessel, the radial fitting portion is an edge of the first limit protrusion of the axial extension of the pressure vessel, and the first limit protrusion is fitted in the first limit groove. The axial locking part is a second limiting groove extending along the radial direction of the pressure container, the axial matching part is a second limiting bulge extending along the radial direction of the pressure container, and the second limiting bulge is matched in the second limiting groove.
According to some embodiments of the invention, the opening width of the first limiting groove in the cross section of the first limiting groove is smaller than or equal to the bottom wall width of the first limiting groove. The opening width of the second limiting groove in the cross section of the second limiting groove is smaller than or equal to the width of the bottom wall of the second limiting groove.
According to some embodiments of the invention, the radial locking portion is an annular shape extending in a circumferential direction of the pressure vessel, the radial locking portion being a plurality of and along the radial interval of the pressure vessel. The axial locking portion is an annular shape extending along the circumferential direction of the pressure vessel, and the axial locking portion is a plurality of and arranged along the axial direction of the pressure vessel at intervals.
According to some embodiments of the utility model, the inner bag be equipped with convex part complex concave part, second cooperation portion is established the concave part.
According to some embodiments of the invention, the inner container is formed by moulding, wherein the first mating portion and the second mating portion are formed when the inner container material is filled into the first connecting portion and the second connecting portion.
According to some embodiments of the utility model, pressure vessel still includes first sealing member and second sealing member, first sealing member be located the valve with between the inner bag and be close to the gas storage space sets up, the second sealing member be located the valve with between the disk seat.
According to some embodiments of the utility model, the disk seat is the metal material spare, the inner bag is the non-metallic material spare.
Compared with the prior art, pressure vessel have following advantage:
pressure vessel, can improve disk seat and inner bag at pressure vessel's axial and radial connection reliability, improve pressure vessel's gas tightness.
Another object of the present invention is to provide a vehicle, such that the vehicle has advantages of stable driving, safe and comfortable use, etc.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a vehicle comprises the pressure container. The vehicle has the same advantages as the pressure vessel described above over the prior art and will not be described further herein.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a partial cross-sectional view of a pressure vessel according to an embodiment of the present invention.
Reference numerals: the pressure container comprises a pressure container 1, an inner container 100, an air storage space 101, a first matching part 110, a second matching part 120, a concave part 130, a positioning ring table 131, a valve seat 200, an air flow channel 201, a main body 210, a first connecting part 211, a convex part 220, a second connecting part 221, a positioning groove 222, a valve 300, a first sealing element 410 and a second sealing element 420.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1 in conjunction with the embodiments.
Referring to fig. 1, a pressure vessel 1 according to an embodiment of the present invention includes an inner container 100, a valve seat 200, and a valve 300.
The inner container 100 is provided with an air storage space 101. The valve seat 200 is connected with the inner container 100, the valve seat 200 includes a main body 210 and a protrusion 220, the protrusion 220 is disposed on the main body 210 and faces the inner container 100, the main body 210 is provided with a first connecting portion 211, the protrusion 220 is provided with a second connecting portion 221, the inner container 100 is provided with a first matching portion 110 matched with the first connecting portion 211 and a second matching portion 120 matched with the second connecting portion 221, so that the valve seat 200 and the inner container 100 are mutually locked in the axial direction and the radial direction of the pressure container 1. The valve 300 is provided with an airflow channel 201 inside and extends into the air storage space 101.
According to the embodiment of the present invention, the pressure container 1 is provided with the first connecting portion 211 and the second connecting portion 221 on the valve seat 200, and the first fitting portion 110 and the second fitting portion 120 are provided on the inner container 100. In this way, the valve seat 200 and the inner container 100 can be locked to each other in the axial direction and the radial direction by the fitting connection of the first connecting portion 211 and the first fitting portion 110 and the fitting connection of the second connecting portion 221 and the second fitting portion 120. Therefore, the connection stability between the valve seat 200 and the inner container 100 can be improved, the valve seat 200 and the inner container 100 are prevented from being separated from each other due to radial expansion or axial expansion of the inner container 100 under the action of pressure, and safety problems such as leakage or permeability resistance deterioration of the pressure container are prevented.
Further, by providing the valve seat 200 with the main body 210 and the projection 220, the first connection portion 211 is provided on the main body 210, and the second connection portion 221 is provided on the projection 220. Therefore, the contact area between the valve seat 200 and the inner container 100 can be increased, the connection reliability between the inner container 100 and the valve seat 200 is improved, the arrangement of the first connecting portion 211 and the second connecting portion 221 is facilitated, the connection between the valve seat 200 and the inner container 100 is conveniently limited and locked in the radial direction and the axial direction, and the air tightness of the pressure container 1 is improved.
Therefore, the pressure vessel 1 according to the embodiment of the present invention has the advantages of improving the axial and radial connection reliability between the valve seat 200 and the liner 100 of the pressure vessel 1, improving the air tightness of the pressure vessel 1, and the like.
A pressure vessel 1 according to an embodiment of the present invention is described below with reference to the drawings.
In some embodiments of the present invention, referring to fig. 1, a pressure container 1 according to embodiments of the present invention includes an inner container 100, a valve seat 200, and a valve 300.
It is to be understood here that the pressure vessel 1 is generally intended to contain fluids at various pressures, such as for storing hydrogen, oxygen, natural gas, nitrogen, propane, methane and other fuels, in particular gases that need to be stored under high pressure conditions. A gas flow path 201 is formed inside the valve 300, and the gas flow path 201 communicates with the gas storage space 101.
In some embodiments of the present invention, the first connecting portion 211 includes a radial locking portion, the second connecting portion 221 includes an axial locking portion, the first mating portion 110 includes a radial mating portion, and the second mating portion 120 includes an axial mating portion. Wherein the radial locking portion is connected with the radial fitting portion to radially restrain the inner container 100 in the pressure vessel 1. The axial locking portion is connected with the axial fitting portion to restrain the inner container 100 in the axial direction of the pressure container 1. Thus, the inner container 100 can be limited in the radial direction by the radial locking part and the radial matching part, and the inner container 100 is limited to be separated from the valve seat 200 in the radial direction of the pressure container 1. The inner container 100 is axially limited by the axial locking part and the axial matching part, and the inner container 100 is limited to be separated from the valve seat 200 in the axial direction of the pressure container 1. The liner 100 is reliably limited in radial and axial directions, so that the liner 100 is prevented from being separated from the valve seat 200, and the connection reliability between the liner 100 and the valve seat 200 is improved.
Specifically, the radial locking portion is a first limiting groove extending along the axial direction of the pressure vessel 1, the radial matching portion is a first limiting protrusion extending along the axial direction of the pressure vessel 1, and the first limiting protrusion is matched in the first limiting groove. The axial locking part is a second limiting groove extending along the radial direction of the pressure container 1, the axial matching part is a second limiting bulge extending along the radial direction of the pressure container 1, and the second limiting bulge is matched in the second limiting groove. Thus, the locking part and the matching part can be conveniently processed, and the reliable connection between the liner 100 and the valve seat 200 can be conveniently realized.
More specifically, the opening width of the first limiting groove in the cross section of the first limiting groove is smaller than or equal to the width of the bottom wall of the first limiting groove. The width of the opening of the second limiting groove in the cross section of the second limiting groove is smaller than or equal to the width of the bottom wall of the second limiting groove. Therefore, the connection strength between the valve seat 200 and the liner 100 is further improved, and the liner 100 is prevented from being separated from the valve seat 200 after being stressed.
Specifically, in the cross section of the first stopper groove, the cross-sectional shape of the first stopper groove is a rectangular groove or a trapezoidal groove. In the cross section of the second limiting groove, the cross section of the second limiting groove is in a rectangular groove or a trapezoidal groove.
Alternatively, the radial locking portion is a closed ring shape extending along the circumferential direction of the pressure vessel 1, and the radial locking portion is plural and provided at intervals in the radial direction of the pressure vessel 1. The axial locking portion is a closed ring shape extending along the circumferential direction of the pressure vessel 1, and the axial locking portions are a plurality of and are arranged at intervals along the axial direction of the pressure vessel 1. Therefore, the stress between the liner 100 and the valve seat 200 is more uniform, the connection reliability of the liner 100 and the valve seat 200 at all positions in the circumferential direction of the pressure container 1 is further improved, and the connection weak point of the pressure container 1 is avoided.
Specifically, the first limiting grooves are arranged at intervals along the radial direction of the pressure container 1, the first limiting protrusions are arranged at intervals corresponding to the first limiting grooves, the second limiting grooves are arranged at intervals along the axial direction of the pressure container 1, and the second limiting protrusions are arranged at intervals corresponding to the second limiting grooves.
Alternatively, as shown in fig. 1, the inner container 100 is provided with a concave portion 130 to be engaged with the convex portion 220, and the second engaging portion 120 is provided in the concave portion 130. Therefore, the inner container 100 is conveniently matched and connected with the valve seat 200, and the connection strength of the inner container 100 and the valve seat 200 is further improved.
Specifically, the convex portion 220 is a cylindrical boss provided at the middle of the end surface of the body 210 facing the inner container 100, and the concave portion 130 is a circular groove provided at the middle of the end surface of the inner container 100 facing the valve seat 200.
Alternatively, the inner container 100 is formed by molding, wherein the first and second fitting parts 110 and 120 are formed when the material of the inner container 100 is filled into the first and second connection parts 211 and 221. That is, during the molding process of the inner container 100, the corresponding first and second mating portions 110 and 120 of the inner container 100 are molded by the material of the inner container 100 mating with the first and second connecting portions 211 and 221. This facilitates preparation of the molded first and second fitting portions 110 and 120, and facilitates improvement of the strength and reliability of the connection between the inner container 100 and the valve seat 200.
Further, as shown in fig. 1, the convex portion 220 is provided with a positioning groove 222, the concave portion 130 is provided with a positioning ring table 131 fitted with the positioning groove 222, an axial locking portion is formed on a circumferential side wall of the positioning groove 222, and an axial fitting portion is formed on a circumferential side wall of the positioning ring table 131. This further facilitates to increase the connection area and connection strength of the inner container 100 to the valve seat 200, and to improve the structural reliability and airtightness of the pressure container 1.
In some embodiments of the present invention, as shown in fig. 1, the pressure container 1 further includes a first sealing member 410 and a second sealing member 420, the first sealing member 410 is located between the valve 300 and the inner container 100 and is disposed near the air storage space 101, and the second sealing member 420 is located between the valve 300 and the valve seat 200. In this way, the first seal 410 and the second seal 420 improve the sealing performance between the valve 300 and the valve seat 200 and between the valve 300 and the inner container 100, thereby improving the overall sealing performance of the pressure vessel 1.
Meanwhile, the existence of the first sealing member 410 can prevent high-pressure fluid from entering the contact surface between the inner surface of the valve seat 200 and the inner container 100 through the boundary between the valve seat 200 and the inner container 100, and can avoid the accumulation of the high-pressure fluid, so as to prevent the collapse of the inner container 100 caused by the pressure relief of the pressure container 1.
Alternatively, the first seal 410 and the second seal 420 may be soft sealing structures such as 0-rings or right-angle sealing rings. The first seal 410 and the second seal 420 may be respectively provided in plurality at intervals.
Specifically, the valve seat 200 is a metal material, and the liner 100 is a non-metal material. This not only facilitates reduction of the production cost of the pressure vessel 1, but also allows the pressure vessel 1 to have better fatigue resistance.
More specifically, the valve seat 200 is integrally cast with the inner container 100.
Optionally, the wall surface of the gas storage space 101 of the inner container 100 is in smooth transition, so that the existence of vortex in the gas filling process can be avoided, and the influence of the local over-high temperature on the gas filling process can be avoided.
Optionally, the pressure vessel 1 further comprises a shell comprising a laminated layer structure of wound glass filaments or other synthetic fibers bonded together by a thermosetting or thermoplastic resin.
According to another aspect of the present invention, a vehicle includes the pressure vessel 1 of the above embodiment.
According to the utility model discloses the vehicle, because according to the utility model discloses pressure vessel 1 of above-mentioned embodiment has above-mentioned technological effect, consequently, according to the utility model discloses the vehicle also has corresponding technological effect, can improve advantages such as pressure vessel 1's gas tightness in order to improve disk seat 200 and inner bag 100 at pressure vessel 1's axial and radial connection reliability.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pressure vessel (1), characterized by comprising:
the air storage container comprises an inner container (100), wherein an air storage space (101) is arranged in the inner container (100);
the valve seat (200) is connected with the inner container (100), the valve seat (200) comprises a main body (210) and a convex part (220), the convex part (220) is arranged on the main body (210) and faces the inner container (100), the main body (210) is provided with a first connecting part (211), the convex part (220) is provided with a second connecting part (221), the inner container (100) is provided with a first matching part (110) matched with the first connecting part (211) and a second matching part (120) matched with the second connecting part (221), and therefore the valve seat (200) and the inner container (100) are mutually locked in the axial direction and the radial direction of the pressure container (1);
the air storage device comprises a valve (300), wherein an air flow channel (201) is arranged inside the valve (300) and extends into the air storage space (101).
2. The pressure vessel (1) according to claim 1, wherein the first connecting portion (211) comprises a radial locking portion, the second connecting portion (221) comprises an axial locking portion, the first mating portion (110) comprises a radial mating portion, the second mating portion (120) comprises an axial mating portion,
the radial locking part is connected with the radial matching part to limit the inner container (100) in the radial direction of the pressure container (1), and the axial locking part is connected with the axial matching part to limit the inner container (100) in the axial direction of the pressure container (1).
3. The pressure vessel (1) according to claim 2, wherein the radial locking portion is a first limit groove extending in an axial direction of the pressure vessel (1), and the radial engagement portion is a first limit projection extending in the axial direction of the pressure vessel (1), the first limit projection being engaged in the first limit groove;
the axial locking part is a second limiting groove extending along the radial direction of the pressure container (1), the axial matching part is a second limiting protrusion extending along the radial direction of the pressure container (1), and the second limiting protrusion is matched in the second limiting groove.
4. A pressure vessel (1) according to claim 3, wherein the opening width of the first limiting groove in the cross section of the first limiting groove is smaller than or equal to the width of the bottom wall of the first limiting groove;
the opening width of the second limiting groove in the cross section of the second limiting groove is smaller than or equal to the width of the bottom wall of the second limiting groove.
5. The pressure vessel (1) according to claim 3, wherein the radial locking portion is annular extending in a circumferential direction of the pressure vessel (1), the radial locking portion is plural and provided at intervals in a radial direction of the pressure vessel (1);
the axial locking part is in a ring shape extending along the circumferential direction of the pressure container (1), and the axial locking parts are arranged in a plurality of axial intervals along the pressure container (1).
6. The pressure vessel (1) according to claim 1, wherein said inner container (100) is provided with a concave portion (130) engaged with said convex portion (220), and said second engaging portion (120) is provided in said concave portion (130).
7. The pressure vessel (1) according to claim 1, wherein the inner container (100) is formed by molding, wherein the first and second fitting portions (110, 120) are formed when the inner container (100) material is filled into the first and second connecting portions (211, 221).
8. The pressure vessel (1) of claim 1, further comprising a first sealing member (410) and a second sealing member (420), wherein the first sealing member (410) is located between the valve (300) and the inner container (100) and is disposed adjacent to the gas storage space (101), and the second sealing member (420) is located between the valve (300) and the valve seat (200).
9. The pressure vessel (1) of claim 1, wherein said valve seat (200) is a piece of metallic material and said inner bladder (100) is a piece of non-metallic material.
10. A vehicle, characterized in that it comprises a pressure vessel (1) according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243333.8U CN211423971U (en) | 2019-12-13 | 2019-12-13 | Pressure vessel and vehicle that has it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243333.8U CN211423971U (en) | 2019-12-13 | 2019-12-13 | Pressure vessel and vehicle that has it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211423971U true CN211423971U (en) | 2020-09-04 |
Family
ID=72275816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922243333.8U Active CN211423971U (en) | 2019-12-13 | 2019-12-13 | Pressure vessel and vehicle that has it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211423971U (en) |
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2019
- 2019-12-13 CN CN201922243333.8U patent/CN211423971U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230117 Address after: No. 2299, Chaoyang South Street, Lianchi District, Baoding, Hebei, 071000 Patentee after: Weishi Energy Technology Hebei Co.,Ltd. Address before: Block B, building 12, No. 6655, Jiasong North Road, Jiading District, Shanghai, 201804 Patentee before: Weishi Energy Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |