CN101988577A - Quickly opening and closing casales sealing device - Google Patents
Quickly opening and closing casales sealing device Download PDFInfo
- Publication number
- CN101988577A CN101988577A CN2009100128343A CN200910012834A CN101988577A CN 101988577 A CN101988577 A CN 101988577A CN 2009100128343 A CN2009100128343 A CN 2009100128343A CN 200910012834 A CN200910012834 A CN 200910012834A CN 101988577 A CN101988577 A CN 101988577A
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- CN
- China
- Prior art keywords
- flat cover
- sealing
- casales
- end part
- cylindrical shell
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a quickly opening and closing casales sealing device, which comprises a flat cover, a threaded sleeve and a cylindrical end part. Upper and lower sections of threads of the threaded sleeve are respectively screwed with the flat cover and the cylindrical end part; a compression ring and a sealing gasket are arranged in a gap between the flat cover and the cylindrical end part; and a U-shaped spring is arranged between the compression ring and the flat cover. The U-shaped ring is utilized to provide pressing force, so the safe and reliable seal can be ensured under the long-time high-pressure sealing state. A hydraulic device is used for screwing the sleeve, so the sealing mode has the quick opening advantage of a casales seal, can bear larger sealing force, and can timely compensate the gap increase due to various causes such as temperature change to solve the problem of sealing failure. The device can be applied to quickly opening sealing containers with covers such as towers and tanks in the industries such as petrochemical engineering.
Description
Technical field
The present invention relates to the seal arrangement, particularly Caza thread bush cartridge type seal arrangement of container with lid snap switches such as a kind of tower realized that is used for industries such as petrochemical industry, jar.
Background technique
At present, the impacting force of the gasket seal of known Caza thread bush cartridge type seal arrangement is to realize with special pretension bolt.If requiring under the situations such as long-time pressurize and frequent switch,, when being in the seal operation state, can not obtain timely full remuneration by the resiliently deformable of pad because of manufacturing and other problem cause that the senior general that adds of seal clearance causes reducing of sealing load.The general who has surrendered makes that sealing in this case is safe and reliable inadequately under the sealing force.
Summary of the invention
The purpose of this invention is to provide a kind of snap switch Caza seal arrangement of sealing of under situations such as long-time pressurize and frequent switch, can guaranteeing.
In order to solve top problem, the technical solution used in the present invention is: snap switch Caza seal arrangement.Comprise flat cover, screw shell and cylindrical shell end, upper and lower two sections screw threads of screw shell spin with flat cover and cylindrical shell end respectively, in the gap of flat cover and cylindrical shell end pressure ring and sealing gasket are arranged, and the present invention is provided with a U-shaped spring between pressure ring and flat cover.
Improved on the Caza thread bush cartridge type sealing configuration mode of the present invention in the GB150-1998 Steel Pressure Vessels, utilize the U-shaped spring that impacting force is provided, reach long-time and can guarantee that also sealingly secure is reliable under the wiper seal state greatly.And use hydraulic pressure installation to screw sleeve, thereby what make the sealing of the existing Caza of this kind sealing means opens advantage soon, can bear bigger sealing force again, and can in time compensate, solve the seal failure problem that therefore causes because the gap that a variety of causes such as temperature variation cause increases.
The invention has the beneficial effects as follows:
Can guarantee the reliable of long-time sealing; Can realize fast frequent switch; Can compensate the seal clearance that causes because of reasons such as manufacturing or temperature variation changes; Can realize that the Caza sealing means is used for the sealing of major diameter structure; Simple in structure.For opening and closing as this type high temp main equipment of coke drum bottom, not only realized automation, shortened the opening and closing time, alleviated labor intensity of operating personnel, also ensured operator's personal safety.
Description of drawings
Fig. 1 is existing Caza sealed structural representation;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is a structural representation of the present invention;
Fig. 4 is the plan view of Fig. 3 correspondence;
The partial enlarged drawing at A place among Fig. 5 Fig. 3.
Embodiment
Existing screw shell Caza seal arrangement, comprise flat cover 1, screw shell 2 and cylindrical shell end 3, upper and lower two sections screw threads of screw shell 2 spin with flat cover 1 and cylindrical shell end 3 respectively, pretension bolt 4 is housed in the screw thread open-work on flat cover 1, pressure ring 5 and sealing gasket 6 are arranged in the gap between flat cover 1 and cylindrical shell end 3, and the lower end of pretension bolt 4 withstands on the pressure ring 5.
The present invention is without pretension bolt 4, but adds a U-shaped spring 7 between pressure ring 5 and flat cover 1, and the closed end of this U-shaped spring 7 is against on the flat cover 1, and opening end is against on the pressure ring 5.Be provided with single pole oil hydraulic cylinder 8 on device, the head and the tail of oil hydraulic cylinder 8 are connected on screw shell 2 and the cylindrical shell end 3.Can drive 10 ° of the relative cylindrical shell of screw shells end rotations by oil hydraulic cylinder 8, make flat cover 1 upper and lower translation, compress or loosen the U-shaped spring by lead angle.The intermittent screw thread that reaches intermittent screw thread on the flat cover 1 and screw shell 2 inboard lower half portions simultaneously screws or staggers, thereby makes flat cover 1 be connected or separate with cylindrical shell end 3.
To be used for coke tower bottom place is example: use O ring shape sealing gasket 6 (adopting metal material during high temperature), compressed by pressure ring 5 and realize sealing.The impacting force of pressure ring 5 is kept by a special U-shaped spring 7.The distortion that compresses of U-shaped spring 7 is when screw shell 2 rotations, the parallel mobile generation of promotion flat cover 1 (being bottom).This translation mode has avoided flat cover 1 rotation own to cause problems such as sealing gasket 6 displacements, distortion.Its specific implementation is as follows:
In screw shell 2 relative cylindrical shell ends 3 and flat cover 1 when rotating to an angle, realize being connected or disconnection of flat cover 1 and screw shell 2, and make flat cover 1 rising or decline certain distance simultaneously.When compression U-shaped spring 7 was risen in flat cover 1 translation, spring force acted on the pressure ring 5, and pressure ring 5 compresses sealing gasket 6, forms the Caza sealing.
The elastic force of U-shaped spring 7 is big, can satisfy the requirement of sealing impacting force.Simultaneously, can in the certain clearance excursion, guarantee that elastic force reaches the requirement of sealing impacting force.
Adopt the rotation of oil hydraulic cylinder 8 drive spool, satisfy the requirement of the big strength of compression U-shaped spring 7 needs.
Close when covering, flat cover 1 (being bottom) is when rising to the precalculated position, and oil hydraulic cylinder 8 drives about 10 ° of screw shell 2 rotations, makes flat cover 1 screw with screw shell 2 and is connected.Simultaneously, U-shaped spring 7 is compressed, and compresses O shape sealing gasket 6 by pressure ring 5 and realizes sealing.Action when uncapping is opposite with top step.
When driving screw shells 2 relative flat covers 1 rotations flat cover 1 descended with oil hydraulic cylinder 8, also can be by flat cover 1 because of oil hydraulic cylinder 8 drive the great power that produces, guarantee between the top and lap joint flange of flat cover 1 also to separate smoothly having under the situation of adhesion.
Claims (3)
1. snap switch Caza seal arrangement, comprise flat cover (1), screw shell (2) and cylindrical shell end (3), upper and lower two sections screw threads of screw shell (2) spin with flat cover (1) and cylindrical shell end (3) respectively, in the gap of flat cover (1) and cylindrical shell end (3), pressure ring (5) and sealing gasket (6) are housed, it is characterized in that: between pressure ring (5) and flat cover (1), a U-shaped spring (7) is set.
2. snap switch Caza seal arrangement according to claim 1 is characterized in that: the closed end of U-shaped spring (7) is against on the flat cover (1), and opening end is against on the pressure ring (5).
3. snap switch Caza seal arrangement according to claim 1 is characterized in that: be provided with single pole oil hydraulic cylinder (8) on device, the head and the tail of oil hydraulic cylinder (8) are connected on screw shell (2) and cylindrical shell end (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100128343A CN101988577A (en) | 2009-07-31 | 2009-07-31 | Quickly opening and closing casales sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100128343A CN101988577A (en) | 2009-07-31 | 2009-07-31 | Quickly opening and closing casales sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101988577A true CN101988577A (en) | 2011-03-23 |
Family
ID=43745275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100128343A Pending CN101988577A (en) | 2009-07-31 | 2009-07-31 | Quickly opening and closing casales sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101988577A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239242A (en) * | 1978-12-18 | 1980-12-16 | Burns William G | Pipe union and seal |
| CN2196215Y (en) * | 1994-07-15 | 1995-05-03 | 陈平 | Sealing device of pressure vessel |
| US20080106046A1 (en) * | 2003-11-04 | 2008-05-08 | Parker Hannifin Corporation | High temperature spring seals |
| CN201072019Y (en) * | 2007-08-07 | 2008-06-11 | 中冶京诚工程技术有限公司 | High-pressure polygonal gas chamber sealing device |
| CN201093074Y (en) * | 2007-11-02 | 2008-07-30 | 铁岭桦林浮动油封有限公司 | Single end water rotary seal assembly |
| CN201487202U (en) * | 2009-07-31 | 2010-05-26 | 严铁伦 | Quick switch kazali seal device |
-
2009
- 2009-07-31 CN CN2009100128343A patent/CN101988577A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239242A (en) * | 1978-12-18 | 1980-12-16 | Burns William G | Pipe union and seal |
| CN2196215Y (en) * | 1994-07-15 | 1995-05-03 | 陈平 | Sealing device of pressure vessel |
| US20080106046A1 (en) * | 2003-11-04 | 2008-05-08 | Parker Hannifin Corporation | High temperature spring seals |
| CN201072019Y (en) * | 2007-08-07 | 2008-06-11 | 中冶京诚工程技术有限公司 | High-pressure polygonal gas chamber sealing device |
| CN201093074Y (en) * | 2007-11-02 | 2008-07-30 | 铁岭桦林浮动油封有限公司 | Single end water rotary seal assembly |
| CN201487202U (en) * | 2009-07-31 | 2010-05-26 | 严铁伦 | Quick switch kazali seal device |
Non-Patent Citations (1)
| Title |
|---|
| 丁伯民等: "《承压容器 石油化工设备设计选用手册》", 31 December 2008, 化学工业出版社 * |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110323 |