CN215335756U

CN215335756U - High pressure vessel

Info

Publication number: CN215335756U
Application number: CN202121726351.2U
Authority: CN
Inventors: 朱豪吉; 潘兴培; 章金波; 孟煜锋
Original assignee: Zhejiang Kaibo Pressure Vessel Co ltd
Current assignee: Zhejiang Kaibo Pressure Vessel Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-12-28
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a high-pressure container which comprises a gas cylinder, wherein a bottle mouth connector is arranged at the top end of the gas cylinder, the gas cylinder mainly comprises a plastic liner, a wear-resistant protective layer, a buffer layer and a carbon fiber bearing layer are sequentially arranged outside the plastic liner, a liner bottle mouth is arranged at the head part of the plastic liner, the bottle mouth connector mainly comprises a metal connecting piece and a metal adapter piece, the metal adapter piece is connected to the inside of the metal connecting piece through threads and covers the top end of the metal connecting piece, and the metal connecting piece is connected to the bottle mouth of the liner through the combined action of the threaded connection and the bonding. The high-pressure container disclosed by the utility model belongs to the field of high-pressure gas cylinders, and the arranged combined type bottle opening connectors are connected, so that the connectors are convenient to replace, and unnecessary waste is reduced; meanwhile, various protection structures are added outside the gas cylinder, so that the service life of the gas cylinder is effectively prolonged.

Description

High pressure vessel

Technical Field

The utility model relates to the field of high-pressure gas cylinders, in particular to a high-pressure container.

Background

As the name suggests, the hydrogen storage cylinder is a hydrogen storage cylinder, and with the technological progress, people have developed various composite material high-pressure gas cylinders which are more durable than the traditional steel cylinders; however, at present, most of the joints of the high-pressure hydrogen storage bottle, which are connected with the pressure reducing valve, are fixed with the bottle body and cannot be replaced, and when the joints are damaged and cannot be used continuously, the intact bottle body is scrapped together, so that great waste is caused; in addition, the external protection of the prior high-pressure hydrogen storage bottle is insufficient, and the bottle body is easily damaged and cannot be continuously and safely used when the bottle body is impacted by external force and worn by vibration.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a high-pressure vessel which can effectively solve the problems mentioned in the background art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

high-pressure vessel, including the gas cylinder, the top of gas cylinder is equipped with a bottleneck connector, the gas cylinder mainly includes the plastics inner bag, the outside of plastics inner bag is equipped with wear-resisting protective layer, buffer layer and carbon fiber bearer layer in proper order, plastics inner bag head is equipped with a inner bag bottleneck, the bottleneck connector mainly comprises metal connecting piece and metal adaptor, the metal adaptor passes through threaded connection to metal connecting piece's inside and the top of lid at metal connecting piece, metal connecting piece then is connected to the inner bag bottleneck through threaded connection and two kinds of mode combined action that bond.

Preferably, the bottom of the plastic liner is provided with an inwards concave caulking groove, and a metal insert for protecting the bottom of the plastic liner is arranged inside the caulking groove.

Preferably, the shape of the carbon fiber bearing layer is the same as that of the plastic liner, the carbon fiber bearing layer is tightly adhered and wrapped outside the plastic liner, the buffer layer and the wear-resistant protective layer are both of cylindrical structures, the buffer layer is adhered outside the carbon fiber bearing layer, and the wear-resistant protective layer is adhered outside the buffer layer.

Preferably, the wear-resistant protective layer and the head of the buffer layer are jointly connected with a top protective sleeve, the top protective sleeve is sleeved at the top of the carbon fiber bearing layer, the carbon fiber bearing layer and the top protective sleeve are respectively provided with a through hole exposing the mouth of the liner, the tail of the wear-resistant protective layer and the tail of the buffer layer are jointly connected with a bottom protective sleeve, and the bottom protective sleeve is wrapped at the bottom of the carbon fiber bearing layer.

Preferably, the metal connecting piece mainly comprises an upper threaded connecting part and a lower bonding part, the threaded connecting part and the bonding part are integrally formed components, the bonding part wraps the outer part of the mouth of the liner, the bottom surface of the bonding part is tightly attached to the horizontal part of the top end of the plastic liner, and the bonding part is tightly bonded with the mouth of the liner and the horizontal part of the top end of the plastic liner through glue.

Preferably, the inner wall of the threaded connection part is provided with a plurality of circles of connection internal threads, the outer wall of the top end of the inner container bottle mouth is provided with three circles of fastening external threads, and the fastening external threads are connected with the bottom of the connection internal threads.

Preferably, the inner wall of the metal adapter is provided with an adapter screw hole for connecting a valve, the outer wall of the metal adapter is provided with a plurality of rings of connecting external threads, and the metal adapter is fixedly arranged inside the metal connecting piece through the matching of the connecting external threads and the connecting internal threads.

Preferably, the bottom of the metal adaptor extends into the mouth of the inner container, the outer wall of the part, extending into the inner container mouth, of the bottom of the metal adaptor is additionally provided with a sealing groove, a baffle ring and a sealing ring are respectively arranged in the sealing groove from top to bottom, and the sealing ring is tightly attached to the inner wall of the mouth of the inner container.

Compared with the prior art, the utility model has the following beneficial effects:

in the utility model, the connector structure formed by combining and connecting the metal connecting piece and the metal adapter piece is arranged, the metal connecting piece and the metal adapter piece can be disassembled, so that damaged parts can be conveniently replaced, and the connector and the bottle body liner can be disassembled while the sealing performance is ensured, so that the disassembly and the replacement are convenient; meanwhile, various protective layers are additionally arranged outside the inner container of the bottle body, so that the gas bottle is prevented from being damaged due to factors such as vibration abrasion and external force impact.

Drawings

FIG. 1 is a schematic view of the overall structure of a high-pressure vessel according to the present invention;

FIG. 2 is an exploded view of the entire structure of the high-pressure vessel of the utility model;

FIG. 3 is a sectional view showing the entire structure of the high-pressure vessel according to the present invention;

FIG. 4 is a schematic structural view of a bottle mouth connector of the high pressure container of the present invention;

FIG. 5 is a disassembled view of the bottle neck connector of the high pressure container of the present invention.

In the figure: 1. a gas cylinder; 2. a bottle mouth connector; 3. a wear-resistant protective layer; 4. a top end protective sleeve; 5. a bottom protective cover; 6. a buffer layer; 7. a carbon fiber bearing layer; 8. a plastic inner container; 9. the inner container is provided with a bottle mouth; 10. A metal insert; 11. caulking grooves; 12. a metal connecting member; 13. a metal adaptor; 14. a screw hole is connected in a switching way; 15. connecting external threads; 16. a sealing groove; 17. a baffle ring; 18. a seal ring; 19. a threaded connection; 20. a bonding portion; 21. connecting the internal threads; 22. and fastening the external thread.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Example 1:

as shown in fig. 1-3, the high-pressure container comprises a gas cylinder 1, a bottle opening connector 2 is arranged at the top end of the gas cylinder 1, the gas cylinder 1 mainly comprises a plastic liner 8, and a wear-resistant protective layer 3, a buffer layer 6 and a carbon fiber bearing layer 7 are sequentially arranged outside the plastic liner 8.

In this embodiment, the bottom of the plastic inner container 8 is provided with a concave caulking groove 11, and a metal insert 10 for protecting the bottom of the plastic inner container 8 is arranged inside the caulking groove 11.

In this embodiment, the carbon fiber bearing layer 7 has the same shape as the plastic liner 8, and is tightly adhered and wrapped outside the plastic liner 8, the buffer layer 6 and the wear-resistant protection layer 3 are both cylindrical structures, the buffer layer 6 is adhered outside the carbon fiber bearing layer 7, and the wear-resistant protection layer 3 is adhered outside the buffer layer 6.

In this embodiment, the head of abrasion-resistant protective layer 3 and buffer layer 6 is connected with a top protective sheath 4 jointly, and top protective sheath 4 overlaps at the top of carbon fiber bearer layer 7, all is equipped with a through-hole that exposes inner bag bottleneck 9 on carbon fiber bearer layer 7 and the top protective sheath 4, and then the afterbody of abrasion-resistant protective layer 3 and buffer layer 6 is connected with a bottom protective sheath 5 jointly, and bottom protective sheath 5 then wraps up in the bottom of carbon fiber bearer layer 7.

The wear-resistant protective layer 3 can be made of polyethylene, polytetrafluoroethylene, polyvinyl chloride and polyurethane, and is more wear-resistant compared with the traditional coating protection; the buffer layer 6, the top protective sleeve 4 and the bottom protective sleeve 5 are mainly made of rubber and used for buffering external impact; the last carbon fibre carrier layer 7 provides sufficient rigidity to the body

Example 2:

as shown in fig. 3-5, the plastic liner 8 has a liner bottle mouth 9 at the head, the bottle mouth connector 2 mainly comprises a metal connector 12 and a metal adaptor 13, the metal adaptor 13 is connected to the inside of the metal connector 12 by screw threads and covers the top end of the metal connector 12, and the metal connector 12 is connected to the liner bottle mouth 9 by the combined action of the screw threads and the adhesive.

In the embodiment, the metal connecting piece 12 mainly comprises an upper threaded connection part 19 and a lower bonding part 20, the threaded connection part 19 and the bonding part 20 are integrally formed members, the bonding part 20 is wrapped outside the liner bottle mouth 9, the bottom surface of the bonding part 20 is tightly attached to the horizontal part of the top end of the plastic liner 8, and the bonding part 20 is tightly bonded with the liner bottle mouth 9 and the horizontal part of the top end of the plastic liner 8 through glue.

In this embodiment, the inner wall of the threaded connection portion 19 is provided with a plurality of circles of internal connection threads 21, the outer wall of the top end of the liner bottle opening 9 is provided with three circles of external fastening threads 22, and the external fastening threads 22 are connected with the bottom of the internal connection threads 21.

In this embodiment, an adapting screw hole 14 for connecting a valve is formed in an inner wall of the metal adaptor 13, a plurality of rings of connecting external threads 15 are formed in an outer wall of the metal adaptor 13, and the metal adaptor 13 is fixedly mounted inside the metal connecting piece 12 through the matching of the connecting external threads 15 and the connecting internal threads 21.

In this embodiment, the bottom of the metal adaptor 13 extends into the inner container bottle opening 9, a sealing groove 16 is further arranged on the outer wall of the part of the bottom of the metal adaptor 13 extending into the inner container bottle opening 9, a baffle ring 17 and a sealing ring 18 are respectively arranged in the sealing groove 16 from top to bottom, and the sealing ring 18 is tightly attached to the inner wall of the inner container bottle opening 9.

When the bottle mouth connector 2 is connected and installed, firstly, glue is coated on the horizontal part of the top end of the inner container bottle mouth 9 and the plastic inner container 8, then the metal connecting piece 12 is sleeved on the inner container bottle mouth 9 and moves downwards until the connecting internal thread 21 on the inner wall of the metal connecting piece 12 contacts the top end of the inner container bottle mouth 9, then the metal connecting piece 12 is rotated to connect the metal connecting piece 12 to the inner container bottle mouth 9 in a threaded manner until the bonding part 20 below the metal connecting piece 12 is fully contacted with the horizontal part of the top end of the plastic inner container 8, and the glue is convenient to bond; the metal connecting piece 12 is arranged on the plastic inner container 8 by the combined action of the threaded connection and the glue bonding, so that the good sealing of the connection strength is ensured; the metal adapter 13 is screwed into the metal connecting piece 12 only through threaded connection, the bottom of the metal adapter 13 and the inner wall of the liner bottle opening 9 are sealed through the sealing ring 18, the sealing ring 18 is moved upwards to deform in order to prevent high-pressure gas in the plastic liner 8 from deforming, and further the sealing effect is reduced, the sealing ring 18 is fixed by the baffle ring 17 arranged in the sealing groove 16, and the sealing effect of the sealing ring 18 is improved due to the matching effect of the baffle ring and the sealing ring.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. High-pressure vessel, including gas cylinder (1), its characterized in that: the top of gas cylinder (1) is equipped with a bottleneck connector (2), gas cylinder (1) mainly includes plastic inner bag (8), the outside of plastic inner bag (8) is equipped with wear-resisting protective layer (3), buffer layer (6) and carbon fiber bearer layer (7) in proper order, plastic inner bag (8) head is equipped with a inner bag bottleneck (9), bottleneck connector (2) mainly comprise metal connecting piece (12) and metal adaptor (13), metal adaptor (13) are connected to the inside of metal connecting piece (12) and are covered on the top of metal connecting piece (12) through threaded connection, metal connecting piece (12) then are connected to inner bag bottleneck (9) through threaded connection and bonding dual mode combined action.

2. The high pressure vessel according to claim 1, wherein: the bottom of the plastic inner container (8) is provided with an inwards concave caulking groove (11), and a metal insert (10) for protecting the bottom of the plastic inner container (8) is arranged inside the caulking groove (11).

3. The high pressure vessel according to claim 1, wherein: the shape of the carbon fiber bearing layer (7) is the same as that of the plastic inner container (8), the carbon fiber bearing layer and the plastic inner container are tightly bonded and wrapped outside the plastic inner container (8), the buffer layer (6) and the wear-resistant protective layer (3) are both of cylindrical structures, the buffer layer (6) is bonded outside the carbon fiber bearing layer (7), and the wear-resistant protective layer (3) is bonded outside the buffer layer (6).

4. The high pressure vessel according to claim 3, wherein: wear-resisting protective layer (3) are connected with a top protective sheath (4) with the head of buffer layer (6) jointly, top protective sheath (4) cover is at the top of carbon fiber bearer layer (7), all be equipped with a through-hole that exposes inner bag bottleneck (9) on carbon fiber bearer layer (7) and top protective sheath (4), the afterbody of wear-resisting protective layer (3) and buffer layer (6) then is connected with a bottom protective sheath (5) jointly, bottom protective sheath (5) then wraps up in the bottom of carbon fiber bearer layer (7).

5. The high pressure vessel according to claim 1, wherein: the metal connecting piece (12) mainly comprises a threaded connecting part (19) at the upper part and a bonding part (20) at the lower part, the threaded connecting part (19) and the bonding part (20) are integrally formed components, the bonding part (20) is wrapped outside the inner container bottle opening (9), the bottom surface of the bonding part (20) is tightly attached to the horizontal part at the top end of the plastic inner container (8), and the bonding part (20) is tightly bonded with the inner container bottle opening (9) and the horizontal part at the top end of the plastic inner container (8) through glue.

6. The high pressure vessel according to claim 5, wherein: the inner wall of the threaded connection part (19) is provided with a plurality of circles of connection internal threads (21), the outer wall of the top end of the liner bottle mouth (9) is provided with three circles of fastening external threads (22), and the fastening external threads (22) are connected with the bottom of the connection internal threads (21).

7. The high pressure vessel according to claim 6, wherein: the inner wall of the metal adapter (13) is provided with an adapter screw hole (14) for connecting a valve, the outer wall of the metal adapter (13) is provided with a plurality of rings of connecting external threads (15), and the metal adapter (13) is fixedly installed inside the metal connecting piece (12) through the matching of the connecting external threads (15) and the connecting internal threads (21).

8. The high pressure vessel according to claim 7, wherein: the bottom of the metal adaptor (13) extends into the inner container bottle mouth (9), a sealing groove (16) is additionally arranged on the outer wall of the part, extending into the inner container bottle mouth (9), of the bottom of the metal adaptor (13), a baffle ring (17) and a sealing ring (18) are respectively arranged in the sealing groove (16) from top to bottom, and the sealing ring (18) is tightly attached to the inner wall of the inner container bottle mouth (9).