CN201513557U - Casale sealing mechanism - Google Patents
Casale sealing mechanism Download PDFInfo
- Publication number
- CN201513557U CN201513557U CN2009202038991U CN200920203899U CN201513557U CN 201513557 U CN201513557 U CN 201513557U CN 2009202038991 U CN2009202038991 U CN 2009202038991U CN 200920203899 U CN200920203899 U CN 200920203899U CN 201513557 U CN201513557 U CN 201513557U
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- China
- Prior art keywords
- flat cover
- ring
- sealing
- end part
- cylindrical shell
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- Expired - Fee Related
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Abstract
The utility model discloses a casale sealing mechanism, which comprises a flat cover, a threaded sleeve and a cylinder end part, wherein the upper and the lower sections of thread of the threaded sleeve are respectively connected with the flat cover and the cylinder end part in a screwing way, and a press ring and a gasket ring are installed inside a gap between the flat cover and the cylinder end part. A circle of groove is arranged on the flat cover to correspond to the cylinder end part, the press ring and the gasket ring are installed inside the groove, and the gasket ring is installed on the side surface of the groove to be contacted with the end surface of the cylinder end part. The press ring is propped against the sealing ring, and a hydraulic push rod is used for pushing the other side of the press ring. When the processing precision of relevant component is insufficient or the center of the flat cover is not opposite to the center of the cylinder end part and a large deviation is produced, the gasket ring can be ensured to be reliably pushed against the sealing surface so as to realize the safe and reliable sealing. Under the condition that the flanges surfaces of the sealing device are bonded with each other, the hydraulic push rod which compresses the press ring can be used to ensure the opening through the thrusting force produced by a disc spring when in opening and the push force produced by the hydraulic system.
Description
Technical field
The utility model relates to a kind of Caza sealing mechanism.
Background technique
At present, the sealing surface of known Caza thread bush cartridge type sealing mechanism (GB 150-1998) is at flat cover one all outer side surfaces and is adjacent on the end face of the cylindrical shell end that connects, the sealing surface of this position exists a lot of not enough, not enough or flat cover center and center, cylindrical shell end do not align in the correlated parts machining accuracy, when producing bigger skew, sealing surface can not reliably be fitted, and influences sealing effect.
In addition, after producing bonding between flat cover and cylindrical shell end, it will be very difficult opening.
Summary of the invention
The purpose of this utility model provides reliable, the adaptable Caza sealing mechanism of a kind of sealing, and guarantees also can reliably open under the bonding situation.
For achieving the above object, the technical solution adopted in the utility model is: the Caza sealing mechanism, 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 seal ring are housed, the utility model be with the corresponding flat cover in cylindrical shell end on establish all grooves, pressure ring and seal ring are installed in this groove, and seal ring is placed in the position that contacts with the end face of the side of groove and cylindrical shell end.Pressure ring leans against on the seal ring, compresses oil hydraulic cylinder on pressure ring.
Improved on the Caza thread bush cartridge type sealing configuration mode of the utility model in the GB150-1998 Steel Pressure Vessels, the position of its sealing surface is provided with, not enough or flat cover center does not align when assembling with center, cylindrical shell end in the correlated parts machining accuracy in permission, when producing certain deviation, can guarantee that also seal ring and sealing surface fit reliably, realize safe and reliable sealing.
In addition, because flat cover and cylindrical shell end produce when boning, can cause the difficulty of uncapping.The utility model can reach and force to uncap by sealing force and hydraulic compressing device.
Description of drawings
Fig. 1 is existing Caza sealed structural representation (taking from GB 150-1998);
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the plan view of Fig. 3 correspondence;
Fig. 5 is the partial enlarged drawing at A place among Fig. 3;
Fig. 6 is a hydraulic system principle figure.
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 seal ring 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 utility model is without pretension bolt 4, but with cylindrical shell end 3 corresponding flat covers 1 on establish all groove 1-1, pressure ring 5 and seal ring 6 are installed in this groove 1-1, and seal ring 6 is placed in the position that contacts with the end face 3-1 of the side 1-2 of groove 1-1 and cylindrical shell end 3.Pressure ring 5 leans against on the seal ring 6, compresses oil hydraulic cylinder 7 on pressure ring 5.
The employed O ring of the utility model shape seal ring 6 compresses the realization sealing by pressure ring 5.The impacting force of pressure ring 5 provides by compressing oil hydraulic cylinder 7.Its specific implementation is as follows:
Being applied to coke drum bottom place with the utility model is example.Dish spring 8 is arranged in compressing oil hydraulic cylinder 7, and piston rod 9 correspondences that compress oil hydraulic cylinder 7 are on pressure ring 5.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.Under coupled condition, compress in oil hydraulic cylinder 7 epicoeles no oil pressure and do the time spent, the active force of dish spring 8 reaches pressure ring 5 by piston rod 9, compresses seal ring 6 and realizes sealing; When the epicoele that compresses oil hydraulic cylinder 7 entered high pressure oil, the active force that will overcome dish spring 8 made the Sealing unloading.Screw shell 2 can be rotated to realize opening and closing by rotating hydraulic cylinder 10 under low load, avoids the shutter device damage.Present embodiment has realized that closing with opening process and seal process of coke drum bottom is separated.
Because the sealing surface that contacts with seal ring is the end face 3-1 of cylindrical shell end 3 and the side 1-2 of flat cover groove, so do not align at flat cover center and center, cylindrical shell end, when producing the skew of certain substantially horizontal, also can guarantee the realization that seals.Simultaneously, the sealing surface in the existing Caza sealing configuration also produces damaged in collision easily in the switch cover process, and the utility model makes that sealing surface is impaired may to significantly reduce.When the end face 3-1 of groove side surface 1-2 and cylindrical shell end 3 have certain when damaged, also can by at groove side surface 1-2 place and the end face 3-1 place of cylindrical shell end 3 seal ring removing layer of material and change correspondence repair the maintenance cost of reduction equipment.
In similar container such as coke drum,, cause situation about can not open can take place when uncapping because the cohesiveencess of the coke of its materials inside and generation etc. can make flat cover and cylindrical shell end produce and bond.When adopting this kind sealing means, because sealing force is to be acted on the seal ring by hydraulic mandril, like this, when rotating hydraulic cylinder 10 piston rods stretch out, drive screw shell 2 with respect to flat cover 1 and 3 rotations of cylindrical shell end, when making intermittent screw thread on the flat cover 1 and the intermittent screw thread on the screw shell 2 be in disconnected position, sealing force (the dish spring 8 in the hold down gag produces) just can be forced the separation of flat cover generation with respect to the Vertical direction of cylindrical shell end, and flat cover and cylindrical shell are separated.If make it moving of big distance, then by the hydraulic system of as shown in Figure 6 driving tight-push unit.When three position four-way directional control valve was in right position, pressure oil entered and compresses oil hydraulic cylinder 7 epicoeles, made 8 compressions of dish spring, unclamped hydraulic mandril, at this moment can allow rotating cylinder 10 piston rods stretch out, the lid rotation of uncapping/close.In the position of uncapping, make three position four-way directional control valve be in position, a left side, pressure oil enters and compresses oil hydraulic cylinder 7 cavity of resorptions, and hydraulic mandril is further ejected, and forces flat cover with respect to the cylindrical shell end bigger displacement to be arranged, and guarantees to uncap.
The utility model has been simplified mechanism design, has realized that sealing rationally, has reduced the requirement on machining accuracy of sealing part in the position accuracy demand and the related components of ON/OFF process, has improved the reliability of equipment.Realized the reliable unlatching under the bonding situation between the sealing surface.
Claims (2)
1. Caza sealing mechanism, comprise flat cover (1), screw shell (2) and cylindrical shell end (3), on the screw shell (2), following two sections screw threads 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 seal ring (6) are housed, it is characterized in that: with the corresponding flat cover in cylindrical shell end (3) (1) on establish all grooves (1-1), pressure ring (5) and seal ring (6) are installed in this groove (1-1), and seal ring (6) is placed in the position that contacts with the end face (3-1) of the side (1-2) of groove (1-1) and cylindrical shell end (3); Pressure ring (5) leans against on the seal ring (6), compresses oil hydraulic cylinder (7) on pressure ring (5).
2. Caza seal arrangement according to claim 1 is characterized in that: dish spring (8) is arranged in compressing oil hydraulic cylinder (7), and the piston rod (9) that compresses oil hydraulic cylinder (7) is corresponding on pressure ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202038991U CN201513557U (en) | 2009-10-12 | 2009-10-12 | Casale sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202038991U CN201513557U (en) | 2009-10-12 | 2009-10-12 | Casale sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513557U true CN201513557U (en) | 2010-06-23 |
Family
ID=42484967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202038991U Expired - Fee Related CN201513557U (en) | 2009-10-12 | 2009-10-12 | Casale sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065666A (en) * | 2015-07-30 | 2015-11-18 | 欧萨斯能源环境设备(南京)有限公司 | Sealing device for waste gas converting system |
| CN108894954A (en) * | 2018-07-12 | 2018-11-27 | 安徽思源三轻智能制造有限公司 | A kind of air compressor piston |
-
2009
- 2009-10-12 CN CN2009202038991U patent/CN201513557U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065666A (en) * | 2015-07-30 | 2015-11-18 | 欧萨斯能源环境设备(南京)有限公司 | Sealing device for waste gas converting system |
| CN108894954A (en) * | 2018-07-12 | 2018-11-27 | 安徽思源三轻智能制造有限公司 | A kind of air compressor piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20111012 |