CN203374787U - High-temperature and high-pressure container elastic sealing structure - Google Patents
High-temperature and high-pressure container elastic sealing structure Download PDFInfo
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- CN203374787U CN203374787U CN201320349181.XU CN201320349181U CN203374787U CN 203374787 U CN203374787 U CN 203374787U CN 201320349181 U CN201320349181 U CN 201320349181U CN 203374787 U CN203374787 U CN 203374787U
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- ring
- sealing cover
- sealing
- elastic ring
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Abstract
The utility model discloses a high-temperature and high-pressure container elastic sealing structure. The high-temperature and high-pressure container elastic sealing structure comprises a cylinder body provided with an inner ring table and a sealing cover provided with an outer ring table, wherein the lower side of the outer ring table of the sealing cover is placed on the upper side of the inner ring table of the cylinder body; a compressing top cover is sleeved at the periphery of the sealing cover; the outer wall of the compressing top cover is in screw thread fit with the inner wall of the cylinder body; the lower end face of the compressing top cover and the upper side of the outer ring table of the sealing cover are matched in a supporting and fastening manner; a metal elastic ring is also embedded in the cylinder body and is located below the sealing cover; the end face of the top part of the metal elastic ring is connected to the bottom of the sealing cover through a bolt; a radial sealing ring is arranged between the outer wall of the metal elastic ring and the inner wall of the cylinder body. The high-temperature and high-pressure container elastic sealing structure has a simple processing technology, is assembled and disassembled conveniently, can realize reliable sealing in the environment with the temperature of 250 DEG C and the pressure intensity of 300 MPa, and improves the temperature resistance per se of 25% and the pressure resistance per se of 50%.
Description
Technical field
The utility model relates to the High Temperature High Pressure sealing configuration, refers to particularly a kind of high temperature and high pressure containers elastic sealing structure.
Background technique
The sealing configuration of ultrahigh pressure vessel is most important constituent element in container, and can ultrahigh pressure vessel normally operate in the integrity that depends on to a great extent its sealing configuration.Traditional ultrahigh pressure vessel sealing configuration mainly contains: several forms such as the sealing of O shape rubber ring, the sealing of B shape ring, Bridgman sealing, cambridge ring sealing.The ring sealing of B shape, Bridgman sealing, cambridge ring seal request machining accuracy are high, and the dismounting complexity is not suitable for being used in the occasion of frequent dismounting; And O shape rubber ring sealing requirement on machining accuracy is relatively low, can be repeatedly used, dismounting is easy, easily realizes quick-opening structure, but under high-temperature and high-pressure conditions, O shape rubber ring strength decreased, easily lost efficacy.
The seal element of high temperature and high pressure containers moves under extreme condition, accuracy of manufacturing is required very high, and its sealing surface coordinates slightly has deviation just can produce leakage, and dismounting all has certain difficulty, once dismounting easily scratches sealing surface accidentally, thereby causes leakage.At present, adopt shape metallic leak-proof structure can realize sealability and the reliability under its high parameter, but this metal sealing element requirement on machining accuracy is high, the dismounting difficulty, be not suitable for being applied in the occasion of frequent dismounting.In addition, only to can be used for temperature be that 200 ℃, pressure are that 200MPa is with interior sealing to traditional O shape rubber ring.When temperature surpasses 200 ℃ of operating modes, the strength decreased of O shape rubber ring, easily be squeezed into the gap between formula sealing cover and cylindrical shell sealing surface on the shoulders, causes the wearing and tearing of O shape rubber ring, and sealability can't guarantee.
Summary of the invention
The purpose of this utility model be exactly to provide a kind of simple in structure, easy making process, easy accessibility, can be 250 ℃ of temperature to realize the high temperature and high pressure containers elastic sealing structure of reliable sealing in interior, the following environment of pressure 300MPa.
For achieving the above object, the high temperature and high pressure containers elastic sealing structure that the utility model is designed, comprise the cylindrical shell that is provided with interior ring platform and the sealing cover that is provided with the outer shroud platform, below the outer shroud platform of described sealing cover, be shelved on above the interior ring platform of cylindrical shell, described sealing cover periphery is set with the compression top cover, the outer wall of described compression top cover coordinates with the inner thread of cylindrical shell, above the outer shroud platform of the lower end surface of described compression top cover and sealing cover, butt locking coordinates, its special way is: be positioned at the sealing cover below in described cylindrical shell and also be equipped with the metallic elastic ring, the top end face of described metallic elastic ring is connected with the sealing cover bottom by bolt, be provided with radial direction seal ring between the outer wall of described metallic elastic ring and cylinder inboard wall.
Further, be provided with end-face seal ring between the top end face of described metallic elastic ring and sealing cover bottom.The sealing means that adopts end face seal to combine with radial seal, make sealing configuration more reliable.
Further, described metallic elastic ring is thin-wall tubular structure.Radial dilatation under the effect that the thin wall cylinder-shaped structure can be pressed in cylindrical shell, dwindle the gap between metallic elastic ring outer wall and cylinder inboard wall, increases the sealing reliability of radial direction seal ring.
Further, offer the cambered surface annular groove on the inwall of described metallic elastic ring, the top end face of described cambered surface annular groove next-door neighbour metallic elastic ring, preferably the cambered surface annular groove is arc surface or elliptical arc surface annular groove.Like this, the radial elastic deformation quantity that it can effectively increase the metallic elastic ring, further strengthen sealability.
Further, the end face center, top of described metallic elastic ring is provided with sealing cover bottom center boss and sets the positioning hole coordinated.Like this, the metallic elastic ring coordinates closely with sealing cover, is convenient to the metallic elastic ring and evenly expands deformation.
Working principle of the present utility model is such: on the one hand, metallic elastic ring inwall is pressed deformation under the effect of formed radial expansion force in cylindrical shell, makes its outer wall tightly be squeezed on cylinder inboard wall; On the other hand, metallic elastic ring top end face tightly is pressed on sealing cover under interior pressure effect, thereby reduced between metallic elastic ring and cylindrical shell and the gap between metallic elastic ring and sealing cover, greatly reduce radial direction seal ring and end-face seal ring are pressed into seal clearance probability in cylindrical shell, effectively prevent the wearing and tearing of O type rubber seal, thereby significantly increased the sealing reliability of cylindrical shell under high-temperature high-pressure work environment.
The utility model has the advantage of: simple and reliable for structure, greatly reduce the difficulty that part is processed; Convenient to disassembly, can realize in temperature being that 250 ℃, pressure are the reliable sealing under the 300MPa environment.Test shows, the temperature resistant capability of designed high temperature and high pressure containers elastic sealing structure can improve more than 25%, and voltage endurance capability improves more than 50%.
The accompanying drawing explanation
The main TV structure schematic diagram that Fig. 1 is a kind of high temperature and high pressure containers elastic sealing structure;
The master that Fig. 2 is metallic elastic ring in Fig. 1 looks the structure for amplifying schematic diagram.
In figure: compress top cover 1, sealing cover 2, end-face seal ring 3, bolt 4, metallic elastic ring 5(wherein: top end face 5.1, outer wall 5.2, inwall 5.3, cambered surface annular groove 5.4, positioning hole 5.5), radial direction seal ring 6, cylindrical shell 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
High temperature and high pressure containers elastic sealing structure as shown in Figure 1 and 2, comprise the cylindrical shell 7 that is provided with interior ring platform and the sealing cover 2 that is provided with the outer shroud platform, below the outer shroud platform of sealing cover 2, be shelved on above the interior ring platform of cylindrical shell 7, sealing cover 2 peripheries are set with and compress top cover 1, the outer wall that compresses top cover 1 coordinates with the inner thread of cylindrical shell 7, and the lower end surface of compression top cover 1 coordinates with butt locking above the outer shroud platform of sealing cover 2.
Be positioned at sealing cover 2 belows in cylindrical shell 7 and also be equipped with the metallic elastic ring 5 that is thin-wall tubular structure, top end face 5.1 centers of metallic elastic ring 5 are provided with sealing cover 2 bottom center boss and set the positioning hole 5.5 coordinated.The top end face 5.1 of metallic elastic ring 5 circumferentially is connected with sealing cover 2 bottoms by the bolt 4 of hexagon head.Be provided with radial direction seal ring 6 between the outer wall 5.2 of metallic elastic ring 5 and cylindrical shell 7 inwalls, radial direction seal ring 6 adopts O type rubber seal.Be provided with end-face seal ring 3 between the top end face 5.1 of metallic elastic ring 5 and sealing cover 2 bottoms, end-face seal ring also adopts O type rubber seal.Offer arc surface or oval cambered surface annular groove 5.4 on the inwall 5.3 of metallic elastic ring 5, the top end face 5.1 of cambered surface annular groove 5.4 next-door neighbour's metallic elastic rings 5.
During the utility model work, metallic elastic ring 5 inwalls 5.3 are under the effect of the formed radial expansion force of interior pressure of cylindrical shell 7, and its outer wall 5.2 is squeezed on the inwall of cylindrical shell 7 tightly; The top end face 5.1 of metallic elastic ring 5 is pressed in tightly on sealing cover 2 under interior pressure effect, thereby reduced between metallic elastic ring 5 and cylindrical shell 7, the gap between metallic elastic ring 5 and sealing cover 2, so greatly reduce O type rubber seal and be pressed into the probability of seal clearance in cylindrical shell 7, effectively avoid the wearing and tearing of O type rubber seal, improved the reliability of sealing.Test shows, although radial direction seal ring of the present utility model 6 and end-face seal ring 3 still adopt traditional O type rubber seal, really can realize in temperature being that 250 ℃, pressure are the reliable sealing under the 300MPa environment.
Claims (10)
1. a high temperature and high pressure containers elastic sealing structure, comprise the cylindrical shell (7) that is provided with interior ring platform and the sealing cover (2) that is provided with the outer shroud platform, below the outer shroud platform of described sealing cover (2), be shelved on above the interior ring platform of cylindrical shell (7), described sealing cover (2) periphery is set with and compresses top cover (1), the outer wall of described compression top cover (1) coordinates with the inner thread of cylindrical shell (7), above the outer shroud platform of the lower end surface of described compression top cover (1) and sealing cover (2), butt locking coordinates, it is characterized in that: be positioned at sealing cover (2) below in described cylindrical shell (7) and also be equipped with metallic elastic ring (5), the top end face (5.1) of described metallic elastic ring (5) is connected with sealing cover (2) bottom by bolt (4), be provided with radial direction seal ring (6) between the outer wall (5.2) of described metallic elastic ring (5) and cylindrical shell (7) inwall.
2. high temperature and high pressure containers elastic sealing structure according to claim 1, is characterized in that: between the top end face (5.1) of described metallic elastic ring (5) and sealing cover (2) bottom, be provided with end-face seal ring (3).
3. high temperature and high pressure containers elastic sealing structure according to claim 1 and 2, it is characterized in that: described metallic elastic ring (5) is thin-wall tubular structure.
4. high temperature and high pressure containers elastic sealing structure according to claim 1 and 2, it is characterized in that: offer cambered surface annular groove (5.4) on the inwall (5.3) of described metallic elastic ring (5), the top end face (5.1) of described cambered surface annular groove (5.4) next-door neighbour's metallic elastic ring (5).
5. high temperature and high pressure containers elastic sealing structure according to claim 3, it is characterized in that: offer cambered surface annular groove (5.4) on the inwall (5.3) of described metallic elastic ring (5), the top end face (5.1) of described cambered surface annular groove (5.4) next-door neighbour's metallic elastic ring (5).
6. high temperature and high pressure containers elastic sealing structure according to claim 4, it is characterized in that: described cambered surface annular groove (5.4) is arc surface or elliptical arc surface annular groove.
7. high temperature and high pressure containers elastic sealing structure according to claim 5, it is characterized in that: described cambered surface annular groove (5.4) is arc surface or elliptical arc surface annular groove.
8. high temperature and high pressure containers elastic sealing structure according to claim 1 and 2, it is characterized in that: top end face (5.1) center of described metallic elastic ring (5) is provided with sealing cover (2) bottom center boss and sets the positioning hole (5.5) coordinated.
9. high temperature and high pressure containers elastic sealing structure according to claim 4, it is characterized in that: top end face (5.1) center of described metallic elastic ring (5) is provided with sealing cover (2) bottom center boss and sets the positioning hole (5.5) coordinated.
10. high temperature and high pressure containers elastic sealing structure according to claim 5, it is characterized in that: top end face (5.1) center of described metallic elastic ring (5) is provided with sealing cover (2) bottom center boss and sets the positioning hole (5.5) coordinated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320349181.XU CN203374787U (en) | 2013-06-18 | 2013-06-18 | High-temperature and high-pressure container elastic sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320349181.XU CN203374787U (en) | 2013-06-18 | 2013-06-18 | High-temperature and high-pressure container elastic sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374787U true CN203374787U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320349181.XU Expired - Lifetime CN203374787U (en) | 2013-06-18 | 2013-06-18 | High-temperature and high-pressure container elastic sealing structure |
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| Country | Link |
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| CN (1) | CN203374787U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202362A (en) * | 2015-09-24 | 2015-12-30 | 中国工程物理研究院化工材料研究所 | Explosion heat missile sealing structure |
| CN113606337A (en) * | 2021-07-30 | 2021-11-05 | 上海汉虹精密机械有限公司 | High vacuum sealing structure for inner circle of quartz cylinder |
| CN113983167A (en) * | 2021-11-08 | 2022-01-28 | 郑州机械研究所有限公司 | Two-stage combined sealing structure for ultrahigh pressure |
-
2013
- 2013-06-18 CN CN201320349181.XU patent/CN203374787U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202362A (en) * | 2015-09-24 | 2015-12-30 | 中国工程物理研究院化工材料研究所 | Explosion heat missile sealing structure |
| CN113606337A (en) * | 2021-07-30 | 2021-11-05 | 上海汉虹精密机械有限公司 | High vacuum sealing structure for inner circle of quartz cylinder |
| CN113983167A (en) * | 2021-11-08 | 2022-01-28 | 郑州机械研究所有限公司 | Two-stage combined sealing structure for ultrahigh pressure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |