CN115585385A - High-pressure storage and transportation bottle valve seat and high-pressure storage and transportation bottle - Google Patents

High-pressure storage and transportation bottle valve seat and high-pressure storage and transportation bottle Download PDF

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Publication number
CN115585385A
CN115585385A CN202211194915.1A CN202211194915A CN115585385A CN 115585385 A CN115585385 A CN 115585385A CN 202211194915 A CN202211194915 A CN 202211194915A CN 115585385 A CN115585385 A CN 115585385A
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CN
China
Prior art keywords
valve seat
seat body
inner container
groove
wall
Prior art date
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Pending
Application number
CN202211194915.1A
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Chinese (zh)
Inventor
匡欢
袁卓伟
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Sinoma Science and Technology Suzhou Co Ltd
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Sinoma Science and Technology Suzhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinoma Science and Technology Suzhou Co Ltd filed Critical Sinoma Science and Technology Suzhou Co Ltd
Priority to CN202211194915.1A priority Critical patent/CN115585385A/en
Publication of CN115585385A publication Critical patent/CN115585385A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides a high-pressure storage and transportation bottle valve seat and a high-pressure storage and transportation bottle comprising the same, and relates to the technical field of high-pressure containers. The high-pressure storage and transportation bottle valve seat and the high-pressure storage and transportation bottle improve the sealing property between the inner container and the valve seat body, thereby reducing or avoiding the leakage.

Description

High-pressure storage and transportation bottle valve seat and high-pressure storage and transportation bottle
Technical Field
The invention relates to the technical field of high-pressure containers, in particular to a high-pressure storage and transportation bottle valve seat and a high-pressure storage and transportation bottle.
Background
A high-pressure storage and transportation bottle is mainly used for storing various high-pressure gases or liquefied gases and generally adopts a fiber winding plastic liner composite material structure. The high-pressure storage and transportation bottle mainly comprises an inner container, a composite winding layer, a valve seat, a valve and the like. After long-time use, the plastic inner container and the metal valve seat of the high-pressure storage and transportation bottle are easy to leak. The sealing contact surface of the plastic inner container and the metal valve seat of the existing high-pressure storage and transportation bottle is lack of a radial and annular limiting structure, namely, the sealing contact surface of the plastic inner container and the metal valve seat is not provided with a related structure capable of increasing the locking force of the plastic inner container and the metal valve seat, such as a plastic inner container composite gas cylinder joint disclosed in Chinese patent CN202110613726.2, a mounting groove is arranged on a joint body, the shape of the mounting groove is matched with the bottle opening of the gas cylinder inner container, the bottle opening of the gas cylinder inner container is embedded into the mounting groove during mounting, the inner side wall and the outer side wall of the mounting groove are respectively in sealing contact with and fixedly connected with the inner side wall and the outer side wall of the bottle opening of the gas cylinder inner container, and the double-layer sealing structure is adopted to increase the sealing area and has a supporting effect on the inner side and the outer side of the bottle opening of the gas cylinder inner container. The inner wall of the mounting groove is not provided with a radial and circumferential limiting structure for the gas cylinder liner, and when the gas cylinder liner deforms, the gas cylinder liner and the connector body (valve seat) can generate relative displacement in the radial and circumferential directions to cause leakage.
Disclosure of Invention
The invention aims to provide a high-pressure storage and transportation bottle valve seat and a high-pressure storage and transportation bottle, which are used for solving the problems in the prior art and improving the sealing property between an inner container and a valve seat body so as to reduce or avoid leakage.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a high-pressure storage and transportation bottle valve seat which comprises a valve seat body, wherein the valve seat body is provided with a first connecting part and a second connecting part, the outer surface of the first connecting part, which is far away from the second connecting part, is a first surface, at least one first limiting part and at least one second limiting part are arranged on the first surface, each first limiting part is annularly arranged around the axis of the valve seat body, the first surface, each first limiting part and each second limiting part are used for being in contact with and fixedly connected with a liner, each first limiting part can limit the relative movement of the liner and the valve seat body along the radial direction of the valve seat body, each second limiting part can at least limit the relative movement of the liner and the valve seat body around the axis of the valve seat body, and the second connecting part is used for being connected with a valve.
Preferably, the first limiting portions are first grooves, each of the first limiting portions is used for accommodating a part of the inner container, the second limiting portions are second grooves, each of the second limiting portions is used for accommodating a part of the inner container, the plurality of second grooves are distributed along the circumferential direction of the valve seat body, the inner surface of each of the second grooves is used for being in complete contact with a part of the outer surface of the inner container, and the inner surface of each of the first grooves is used for being in complete contact with a part of the outer surface of the inner container.
Preferably, the surface of the first connecting portion, which is away from the axis of the valve seat body, is a second surface, the second surface is provided with an annular first protrusion, the first protrusion is perpendicular to the axis of the valve seat body, the surface of the first protrusion, which is away from the second connecting portion, is a third surface, the third surface is provided with at least one third groove, the third groove is used for accommodating part of the liner, the third surface is used for contacting with part of the surface of the liner, the third groove can limit the liner and the valve seat body to move relative to each other along the radial direction of the valve seat body, and the third groove can limit the liner and the valve seat body to move relative to each other around the axis of the valve seat body.
Preferably, at least one annular fourth groove is formed in the inner wall of the first connecting portion, the fourth groove is used for accommodating part of the inner container, and the fourth groove can at least limit the relative movement of the inner container and the valve seat body along the axial direction of the valve seat body.
Preferably, a size of a bottom surface of the fourth groove is larger than a size of an opening of the fourth groove.
Preferably, a second protrusion extending in a direction away from the axis of the valve seat body is disposed on an outer wall of the second connecting portion, the second protrusion being close to the first connecting portion, the first connecting portion has a body portion and an outer protrusion, the body portion and the second connecting portion are integrally formed, the outer protrusion protrudes from the body portion and extends in a direction away from the axis of the valve seat body, an outer surface of the outer protrusion, which is close to the second connecting portion, is a fourth surface, a fifth groove is formed between the fourth surface and the outer wall of the second protrusion, the fourth surface is used for contacting and fixedly connecting with the composite winding layer, and the composite winding layer can extend into the fifth groove and contact with a part of the outer wall of the second protrusion.
Preferably, the fourth surface can be smoothly transited to a portion of the outer wall of the inner container for contacting with the composite winding layer.
Preferably, the high-pressure storage and transportation bottle valve seat provided by the invention further comprises an inner plug, the inner plug is sleeved in the valve seat body and fixedly connected with the inner wall of the second connecting part, the inner plug is used for being sleeved outside the valve and fixedly connected with the valve, the inner diameter of the first connecting part is larger than that of the second connecting part, a sixth groove is formed between the inner wall of the first connecting part and the outer wall of the inner plug, the sixth groove is used for accommodating part of the liner, the inner wall of the sixth groove is used for being in sealing contact with and fixedly connected with part of the inner wall of the liner, at least one annular seventh groove is arranged on the outer wall of the inner plug, each seventh groove is used for being in sealing contact with the inner wall of the sealing ring, and the outer wall of the sealing ring can be in sealing contact with part of the inner wall of the liner.
Preferably, the valve seat body can be integrally formed with the inner container.
The invention also provides a high-pressure storage and transportation bottle, which comprises an inner container and the high-pressure storage and transportation bottle valve seat, wherein the inner container is in sealing contact with the first surface and is fixedly connected with the first surface, the outer wall of the inner container is provided with at least one third limiting part and at least one fourth limiting part, each first limiting part is matched with each third limiting part and can limit the relative movement of the inner container and the valve seat body along the radial direction of the valve seat body, and each second limiting part is matched with each fourth limiting part and can at least limit the relative movement of the inner container and the valve seat body around the axis of the valve seat body.
Compared with the prior art, the invention has the following technical effects:
according to the high-pressure storage and transportation bottle valve seat and the high-pressure storage and transportation bottle, the first surface is provided with the at least one first limiting part and the at least one second limiting part, each first limiting part is annularly arranged around the axis of the valve seat body, each first limiting part can limit the relative movement of the liner and the valve seat body along the radial direction of the valve seat body, and the liner and the valve seat body can be radially limited by the first limiting parts in a 360-degree full-angle manner due to the annular shape of the first limiting parts, so that the strength and the stability of radial limiting are enhanced; each second limiting part can at least limit the relative movement of the inner container and the valve seat body around the axis of the valve seat body, namely limit the circumferential relative movement of the inner container and the valve seat body. The high-pressure storage and transportation bottle valve seat and the high-pressure storage and transportation bottle provided by the invention have the advantages that through the double limiting action of the first limiting part and the second limiting part, the locking force between the liner and the valve seat body is improved, the liner and the valve seat body can be combined more tightly, the radial and annular relative displacement between the liner and the valve seat body is reduced or avoided, the sealing property between the liner and the valve seat body is improved, and the leakage is reduced or avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a valve seat of a high-pressure storage and transportation bottle in example 1;
FIG. 2 is a schematic structural view of a valve seat body in embodiment 1;
FIG. 3 is a plan view of the valve seat body in embodiment 1;
in the figure: 100. a high-pressure storage and transportation bottle valve seat; 1. a valve seat body; 2. a first connection portion; 201. a first surface; 202. a first limiting part; 203. a second limiting part; 204. a second surface; 205. a first protrusion; 206. a third surface; 207. a third groove; 208. a fourth groove; 209. a body portion; 210. an outer convex portion; 211. a fourth surface; 3. a second connecting portion; 301. a second protrusion; 4. a fifth groove; 5. an inner plug; 501. a seventh groove; 502. a seal ring; 6. an inner container; 601. a third limiting part; 602. a fourth limiting part; 7. a composite wrap layer; 8. and a sixth groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a high-pressure storage and transportation bottle valve seat and a high-pressure storage and transportation bottle, which are used for solving the problems in the prior art and improving the sealing property between an inner container and a valve seat body so as to reduce or avoid leakage.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Example 1
As shown in fig. 1-3, the embodiment provides a high-pressure storage and transportation bottle valve seat 100, which includes a valve seat body 1, the valve seat body 1 has a first connecting portion 2 and a second connecting portion 3, an outer surface of the first connecting portion 2, which is far away from the second connecting portion 3, is a first surface 201, the first surface 201 is provided with at least one first limiting portion 202 and at least one second limiting portion 203, each first limiting portion 202 is annularly arranged around an axis of the valve seat body 1, the first surface 201, each first limiting portion 202, and each second limiting portion 203 are used for contacting and fixedly connecting with an inner container 6, and the first surface 201, each first limiting portion 202, each second limiting portion 203, and outer walls of the inner container 6 can be fixed by various methods such as injection molding, bonding, or hot melt connection; each first limiting portion 202 can limit the relative movement of the inner container 6 and the valve seat body 1 along the radial direction of the valve seat body 1, each second limiting portion 203 can limit the relative movement of the inner container 6 and the valve seat body 1 around the axis of the valve seat body 1, and the second connecting portion 3 is used for being connected with a valve. In the high-pressure storage and transportation bottle valve seat 100 provided by the embodiment, the first surface 201 is provided with at least one first limiting portion 202 and at least one second limiting portion 203, each first limiting portion 202 is annularly arranged around the axis of the valve seat body 1, each first limiting portion 202 can limit the relative movement of the liner 6 and the valve seat body 1 along the radial direction of the valve seat body 1, and because the first limiting portion 202 is annularly shaped, the first limiting portion 202 can radially limit the liner 6 and the valve seat body 1 at a full angle of 360 degrees, so that the strength and stability of radial limiting are enhanced; each second limiting portion 203 can at least limit the relative movement between the liner 6 and the valve seat body 1 around the axis of the valve seat body 1, that is, the circumferential relative movement between the liner 6 and the valve seat body 1. The high-pressure storage and transportation bottle valve seat 100 and the high-pressure storage and transportation bottle provided by the invention have the advantages that the locking force between the liner 6 and the valve seat body 1 is improved through the double limiting action of the first limiting part 202 and the second limiting part 203, so that the liner 6 and the valve seat body 1 can be combined more tightly, the radial and annular relative displacement between the liner 6 and the valve seat body 1 is reduced or avoided from leaking, the sealing property between the liner 6 and the valve seat body 1 is improved, and the leakage is reduced or avoided.
As a preferred embodiment, the first limiting portions 202 are first grooves, each first limiting portion 202 is configured to accommodate a part of the inner container 6, the second limiting portion 203 is a second groove, each second limiting portion 203 is configured to accommodate a part of the inner container 6, the plurality of second grooves are distributed along the circumferential direction of the valve seat body 1, the inner surface of each second groove is configured to be in complete contact, preferably in sealing contact, with a part of the outer surface of the inner container 6, the inner surface of the first groove is configured to be in complete contact, preferably in sealing contact, with a part of the outer surface of the inner container 6, and the complete contact is favorable for increasing the contact area between the first groove and the outer wall of the inner container 6, so as to improve the sealing performance; simultaneously, the internal surface of second recess is used for contacting completely with the partial surface of inner bag 6 for the second recess not only can restrict the relative motion of inner bag 6 and valve seat body 1 hoop, can also restrict inner bag 6 and the radial relative motion of valve seat body 1. It should be noted that the first limiting portion 202 and the second limiting portion 203 are not limited to the form of grooves, the first limiting portion 202 and the second limiting portion 203 may also be protrusions, corresponding grooves are formed in the inner container 6, and the first limiting portion 202 and the second limiting portion 203 are matched with the outer wall of the inner container 6 through the grooves and the protrusions to achieve limiting. The cross section of the second groove is preferably cylindrical, and can also be in various shapes such as rectangle, and the like, as long as the limiting function can be realized.
The surface of the first connecting part 2, which is far away from the axis of the valve seat body 1, is a second surface 204, the second surface 204 is provided with an annular first protrusion 205, the surface of the first protrusion 205, which is perpendicular to the axis of the valve seat body 1 and far away from the second connecting part 3, is a third surface 206, the third surface 206 is provided with at least one third groove 207, the third groove 207 is used for accommodating part of the liner 6, and the third surface 206 is used for contacting with part of the surface of the liner 6, that is, the first protrusion 205 can limit the relative movement of the liner 6 and the valve seat body 1 along the direction parallel to the axis of the valve seat body 1, preferably, the third surface 206 is perpendicular to the axis of the valve seat body 1; the third groove 207 can limit the relative movement of the liner 6 and the valve seat body 1 along the radial direction of the valve seat body 1, the third groove 207 can limit the relative movement of the liner 6 and the valve seat body 1 around the axis of the valve seat body 1, and the second surface 204 and the outer wall of the first protrusion 205 can limit the relative movement of the liner 6 and the valve seat body 1 along the direction perpendicular to the axis of the valve seat body 1; through the limiting action in multiple directions, the sealing performance of the valve seat body 1 and the inner container 6 is further improved. Preferably, the third groove 207 is completely contacted with the outer wall of a part of the inner container 6, and a plurality of third grooves 207 are distributed along the circumferential direction of the valve seat body 1; the third groove 207 penetrates through the upper surface and the lower surface of the first protrusion 205, so that the part of the inner container 6 extending into the third groove 207 is uniformly stressed up and down, and the stability of the device is improved; more preferably, the center line of the third groove 207 and the axis of the valve seat body 1 are parallel to each other. It should be noted that the first protrusion 205 is an annular protrusion disposed around the axis of the valve seat body 1, and preferably, the axis of the first protrusion 205 is collinear with the axis of the valve seat body 1.
At least one annular fourth groove 208 is formed in the inner wall of the first connecting portion 2, the fourth groove 208 is used for accommodating a part of the inner container 6, the fourth groove 208 can at least limit the relative movement of the inner container 6 and the valve seat body 1 along the axial direction of the valve seat body 1, and the valve seat body 1 and the inner container 6 can be prevented from being separated along the axial direction. It should be noted that the fourth groove 208 is an annular groove disposed around the axis of the valve seat body 1, and preferably, the axis of the fourth groove 208 is collinear with the axis of the valve seat body 1, and the fourth groove 208 is recessed from the inner wall of the valve seat body 1 in the radial direction of the valve seat body 1. The fourth grooves 208 are preferably two.
In a preferred embodiment, the size of the bottom surface of the fourth groove 208 is larger than the size of the opening of the fourth groove 208. The corresponding bulge on the inner container 6 can be prevented from being separated from the fourth groove 208, so that the bottle mouth of the inner container 6 is prevented from being separated from the valve seat body 1 along the central direction of the valve seat body 1, the bottle mouth and the valve seat body 1 are firmly fixed, the concentricity of the bottle mouth of the inner container 6 and the valve seat body 1 can be ensured, and the valve seat body 1 and the inner container 6 are better prevented from being separated along the axial direction. Preferably, the axial cross-section of the fourth groove 208 is two trapezoids.
A second protrusion 301 extending towards the direction far away from the axis of the valve seat body 1 is arranged on the outer wall of the second connecting part 3 close to the first connecting part 2, the first connecting part 2 is provided with a body 209 and an outer protrusion 210, the body 209 and the second connecting part 3 are integrally formed, the outer protrusion 210 protrudes out of the body 209 and extends towards the direction far away from the axis of the valve seat body 1, the outer surface of the outer protrusion 210 close to the second connecting part 3 is a fourth surface 211, a fifth groove 4 is formed between the fourth surface 211 and the outer wall of the second protrusion 301, the fourth surface 211 is used for being in contact with and fixedly connected with the composite winding layer 7, the composite winding layer 7 can extend into the fifth groove 4 and be in contact with part of the outer wall of the second protrusion 301, and the composite winding layer 7 can be prevented from tilting; meanwhile, the second bulge 301 can reduce the stress directly acting on the composite winding layer 7 when the bottle mouth end of the high-pressure storage and transportation bottle is impacted, and the safety of the gas bottle in the using process is improved. The composite winding layer 7 is fixed with the valve seat body 1 and the inner container 6 through clamping force generated by winding, and the inner container 6 and the valve seat body 1 can be further fixed by the composite winding layer 7.
Fourth surface 211 enables a smooth transition with the portion of the outer wall of bladder 6 intended to come into contact with composite wrap 7. Preferably, the surface of the first protrusion 205 on the side close to the second connecting part 3 is used for smooth transition of the part contacted with the composite winding layer 7; the inner container 6 can wrap the second surface 204 of the metal valve seat, the outer wall of the first bulge 205 and the third surface 206 for 360 degrees and is fixedly connected with the second surface, so that the structure of the bottle mouth is more stable, and the phenomenon of delamination caused by inconsistent shrinkage rates of metal and plastic materials when the temperature changes is prevented; and the inner container 6 can stretch into the third groove 207 and be fixedly connected with the third groove 207, the two are mutually matched, and the bonding force between the valve seat body 1 and the inner container 6 is further strengthened from the directions of the annular direction, the axial direction and the like.
The high-pressure storage and transportation bottle valve seat 100 provided by the invention further comprises an inner plug 5, the inner plug 5 is sleeved in the valve seat body 1 and fixedly connected with the inner wall of the second connecting part 3, preferably in a threaded and sealed connection mode, the inner plug 5 is sleeved outside the valve and fixedly connected with the valve, preferably in a threaded and sealed connection mode, sealing modes such as end face sealing or radial sealing can be adopted, and the flexibility of selection of subsequent valves is improved; the inner diameter of the first connecting part 2 is larger than that of the second connecting part 3, a sixth groove 8 is formed between the inner wall of the first connecting part 2 and the outer wall of the inner plug 5, the sixth groove 8 is used for accommodating part of the inner container 6, the inner wall of the sixth groove 8 is used for being in sealing contact with and fixedly connected with part of the inner wall of the inner container 6, and the fixing can be carried out in various modes such as injection molding, bonding or hot melt connection; the clamping effect of the inner wall of the first connecting part 2 and the outer wall of the inner plug 5 on the bottle opening of the inner container 6 is beneficial to reducing the deformation of the bottle opening of the inner container 6; the outer wall of the inner plug 5 is provided with at least one annular seventh groove 501, each seventh groove 501 is used for being in sealing contact with the inner wall of the sealing ring 502, and the outer wall of the sealing ring 502 can be in sealing contact with part of the inner wall of the inner container 6, so that the sealing performance of the inner plug 5 and the opening of the inner container 6 can be improved. It should be noted that the seventh groove 501 is an annular groove provided around the axis of the valve seat body 1, and preferably, the axis of the seventh groove 501 is collinear with the axis of the valve seat body 1.
The valve seat body 1 can be integrally formed with the liner 6. Preferably, the inner container 6 is formed with protrusions corresponding to the first, second, third, fourth, fifth, sixth and seventh grooves 207, 208, 4, 8 and 501 by injection molding, blow molding or rotational molding, and is fixed to the valve seat body 1. The material of the inner container 6 is preferably plastic, and can be one of polyethylene (including modified polyethylene), polyamide (including modified polyamide) or a multilayer bonding structure; the valve seat body 1 is preferably made of metal.
Example 2
The embodiment provides a high-pressure storage and transportation bottle, which comprises an inner container 6 and a high-pressure storage and transportation bottle valve seat 100 in embodiment 1, wherein the inner container 6 is in sealing contact with and fixedly connected with a first surface 201, the outer wall of the inner container 6 is provided with at least one third limiting portion 601 and at least one fourth limiting portion 602, each first limiting portion 202 is matched with each third limiting portion 601 and can limit the relative movement of the inner container 6 and the valve seat body 1 along the radial direction of the valve seat body 1, each second limiting portion 203 is matched with each fourth limiting portion 602 and can at least limit the relative movement of the inner container 6 and the valve seat body 1 around the axis of the valve seat body 1, namely, each first limiting portion 202 is matched with each third limiting portion 601 through a groove and a convex structure, and each second limiting portion 203 is matched with each fourth limiting portion 602 through a groove and a convex structure. The high-pressure storage and transportation bottle provided by the embodiment improves the sealing property between the inner container 6 and the valve seat body 1, thereby reducing or avoiding the leakage.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (10)

1. The valve seat for high-pressure storage and transportation bottle is characterized in that: the valve seat comprises a valve seat body, wherein the valve seat body is provided with a first connecting portion and a second connecting portion, the outer surface, far away from the second connecting portion, of the first connecting portion is a first surface, at least one first limiting portion and at least one second limiting portion are arranged on the first surface, each first limiting portion is annularly arranged around the axis of the valve seat body, the first surface, each first limiting portion and each second limiting portion are used for being in contact with and fixedly connected with an inner container, each first limiting portion can limit the inner container and the valve seat body to move along the radial direction of the valve seat body, each second limiting portion can at least limit the inner container and the valve seat body to move around the axis of the valve seat body, and the second connecting portion is used for being connected with a valve.
2. The valve seat for high-pressure storage and transportation bottles of claim 1, wherein said valve seat comprises: the first limiting parts are first grooves, each first limiting part is used for containing part of the inner container, the second limiting parts are second grooves, each second limiting part is used for containing part of the inner container, the number of the second grooves is multiple, the second grooves are distributed along the circumferential direction of the valve seat body, the inner surface of each second groove is used for being in complete contact with part of the outer surface of the inner container, and the inner surface of each first groove is used for being in complete contact with part of the outer surface of the inner container.
3. The high pressure storage and transportation cylinder valve seat according to claim 1, wherein: the surface of the first connecting portion, which deviates from the axis of the valve seat body, is a second surface, an annular first protrusion is arranged on the second surface, the first protrusion is perpendicular to the axis of the valve seat body, the surface, which is far away from the second connecting portion, is a third surface, at least one third groove is arranged on the third surface, the third groove is used for accommodating part of the inner container, the third surface is used for contacting with part of the surface of the inner container, the third groove can limit the radial relative movement of the inner container and the valve seat body along the valve seat body, and the third groove can limit the relative movement of the inner container and the valve seat body around the axis of the valve seat body.
4. The high pressure storage and transportation cylinder valve seat according to claim 1, wherein: the inner wall of the first connecting part is provided with at least one annular fourth groove, the fourth groove is used for accommodating part of the inner container, and the fourth groove can at least limit the relative movement of the inner container and the valve seat body along the axial direction of the valve seat body.
5. The high pressure storage and transportation cylinder valve seat according to claim 4, wherein: the size of the bottom surface of the fourth groove is larger than the size of the opening of the fourth groove.
6. The high pressure storage and transportation cylinder valve seat according to claim 1, wherein: the outer wall of the second connecting portion, which is close to the first connecting portion, is provided with a second protrusion extending in the direction away from the axis of the valve seat body, the first connecting portion is provided with a body portion and an outer protrusion portion, the body portion and the second connecting portion are integrally formed, the outer protrusion portion protrudes out of the body portion and extends in the direction away from the axis of the valve seat body, the outer surface of the outer protrusion portion, which is close to the second connecting portion, is a fourth surface, a fifth groove is formed between the fourth surface and the outer wall of the second protrusion portion, the fourth surface is used for being in contact with and fixedly connected with the composite winding layer, and the composite winding layer can extend into the fifth groove and be in contact with part of the outer wall of the second protrusion portion.
7. The high pressure storage and transportation cylinder valve seat of claim 6, wherein: the fourth surface can be in smooth transition with the part of the outer wall of the inner container, which is used for being in contact with the composite winding layer.
8. The valve seat for high-pressure storage and transportation bottles of claim 6, wherein said valve seat comprises: the inner plug is sleeved in the valve seat body and fixedly connected with the inner wall of the second connecting portion, the inner plug is used for being sleeved outside the valve and fixedly connected with the valve, the inner diameter of the first connecting portion is larger than that of the second connecting portion, a sixth groove is formed between the inner wall of the first connecting portion and the outer wall of the inner plug and used for containing part of the inner container, the inner wall of the sixth groove is used for being in sealing contact with and fixedly connected with part of the inner wall of the inner container, at least one annular seventh groove is formed in the outer wall of the inner plug, each seventh groove is used for being in sealing contact with the inner wall of a sealing ring, and the outer wall of the sealing ring can be in sealing contact with part of the inner wall of the inner container.
9. The high pressure storage and transportation cylinder valve seat according to claim 1, wherein: the valve seat body can be integrally formed with the inner container.
10. A high-pressure storage and transportation bottle is characterized in that: the high-pressure storage and transportation bottle valve seat comprises the inner container and the high-pressure storage and transportation bottle valve seat as claimed in any one of claims 1 to 9, wherein the inner container is in sealing contact with the first surface and is fixedly connected with the first surface, the outer wall of the inner container is provided with at least one third limiting part and at least one fourth limiting part, each first limiting part is matched with each third limiting part and can limit the relative movement of the inner container and the valve seat body along the radial direction of the valve seat body, and each second limiting part is matched with each fourth limiting part and can at least limit the relative movement of the inner container and the valve seat body around the axis of the valve seat body.
CN202211194915.1A 2022-09-27 2022-09-27 High-pressure storage and transportation bottle valve seat and high-pressure storage and transportation bottle Pending CN115585385A (en)

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CN202211194915.1A CN115585385A (en) 2022-09-27 2022-09-27 High-pressure storage and transportation bottle valve seat and high-pressure storage and transportation bottle

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CN202211194915.1A CN115585385A (en) 2022-09-27 2022-09-27 High-pressure storage and transportation bottle valve seat and high-pressure storage and transportation bottle

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CN115585385A true CN115585385A (en) 2023-01-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116557764A (en) * 2023-05-05 2023-08-08 华南理工大学 High-performance bottle mouth sealing structure for IV-type hydrogen storage bottle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116557764A (en) * 2023-05-05 2023-08-08 华南理工大学 High-performance bottle mouth sealing structure for IV-type hydrogen storage bottle
CN116557764B (en) * 2023-05-05 2024-01-05 华南理工大学 High-performance bottle mouth sealing structure for IV-type hydrogen storage bottle

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