CN205388203U - Thick pipe wall pipeline thread sealing structure - Google Patents
Thick pipe wall pipeline thread sealing structure Download PDFInfo
- Publication number
- CN205388203U CN205388203U CN201521141114.4U CN201521141114U CN205388203U CN 205388203 U CN205388203 U CN 205388203U CN 201521141114 U CN201521141114 U CN 201521141114U CN 205388203 U CN205388203 U CN 205388203U
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- ring
- sealing structure
- sealing
- inner thread
- rustless steel
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Abstract
The utility model belongs to the technical field of the pipeline is sealed, especially, relate to a thick pipe wall pipeline thread sealing structure, including pipeline port, connecting bend, setting at the pipeline port at connecting bend both ends, connecting bend with the pipeline port passes through seal structure and connects its characterized in that: the sealing structure comprises a rubber sealing ring, a stainless steel retaining ring and a spring retaining ring, wherein the end of the pipeline is close to the connecting elbow, an annular clamping groove is formed in one end of the connecting elbow, the spring retaining ring is arranged in the annular clamping groove, the stainless steel retaining ring is arranged between the connecting elbow and the spring retaining ring, a chamfer groove is formed in the contact position of the stainless steel retaining ring and the inner wire elbow, and the sealing ring matched with the chamfer groove in shape is arranged in the chamfer groove. The utility model has the advantages that: the sealing technology is simple and convenient to mount, more parts need to be processed, and the requirement on processing precision is high, so that the sealing technology is particularly suitable for sealing DN 32-DN 50 thick-wall pipelines.
Description
Technical field
This utility model belongs to pipeline construction technical field, particularly relates to a kind of thick tube wall pipeline threaded sealing structure.
Background technology
Traditional pipe is threaded in when being applied to more than DN32 bore, with raw material band auxiliary seal is pressure not high and sealing effectiveness is bad, there is not easily detachable problem in the mode adopting thread locking adhesive, adopt end face seal processed complex, there is undergauge etc. simultaneously and change the problem of fluid resistance, in general occasion, the mode of commonly used flange seal, but due to welding procedure, easily occur during flange that flange face is not orthogonal to pipeline, cause the problem that sealing surface out-of-flatness, sealing effectiveness are bad.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the problem such as this utility model is not quick detachable for conventional seals mode, undergauge, flange sealing surface out-of-flatness, operating pressure are not high, a kind of thick tube wall pipeline threaded sealing structure is provided, can effectively solve the problems referred to above by modified model thread seal technology.
To achieve these goals, this utility model provides a kind of thick tube wall pipeline threaded sealing structure, including line ports, connecting bend, it is arranged on the line ports at connecting bend two ends, described connecting bend is connected by sealing structure with described line ports, it is characterized in that: described sealing structure includes rubber seal, rustless steel back-up ring, check ring, on described line ports, it is provided with annular slot near one end of described connecting bend, described check ring is arranged in described annular slot, rustless steel back-up ring it is provided with between described check ring and described connecting bend, on described rustless steel back-up ring, it is provided with chamfering groove with inner thread elbow contact position, it is provided with the sealing ring with its mating shapes in described chamfering groove.
Described connecting bend two ends are connected by described sealing structure with straight tube line ports and switching straight tube respectively, and described connecting bend is inner thread elbow.
On described straight tube line ports, it is provided with annular slot near one end of described inner thread elbow, described check ring is arranged in described annular slot, rustless steel back-up ring it is provided with between described check ring and described inner thread elbow, on described rustless steel back-up ring and described inner thread elbow contact position is provided with chamfering groove, is provided with the sealing ring with its mating shapes in described chamfering groove.
On described switching straight tube, it is provided with annular slot near one end of described inner thread elbow, described check ring is arranged in described annular slot, rustless steel back-up ring it is provided with between described check ring and described inner thread elbow, on described rustless steel back-up ring and described inner thread elbow contact position is provided with chamfering groove, is provided with the sealing ring with its mating shapes in described chamfering groove.
Described sealing ring is O type rubber seal.
The beneficial effects of the utility model are: check ring is used for fixing rustless steel back-up ring, mounting O-shaped rubber seal in the chamfering groove of rustless steel back-up ring, it is ensured that O type rubber seal extruding after will not radial deformation, after screw thread screws, compress O type rubber seal, well play sealing function and adopt.This utility model utilizes and O type rubber seal is compressed the principle sealed, and solves not easily-disassembled problem, replaces flange with rustless steel back-up ring, have the advantages that volume is little, requirements of installation space is not high, and can repeatedly dismantle, good sealing effect, can use under the environment that operating pressure is high.On pipeline, additionally directly process screw thread, to pipeline bore without any change, it is ensured that the stability of fluid.This Sealing Technology simple installation, it is necessary to the parts of processing are more, the requirement for machining accuracy is higher.It is particularly suitable for the sealing of DN32 to DN50 heavy wall pipeline.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, straight tube line ports, 2, inner thread elbow, 3, switching straight tube, 4, straight tube flange, 5, flange, 6, O type rubber seal, 7, rustless steel back-up ring, 8, check ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of detailed description of the invention of utility model is explained.
This utility model provides a kind of thick tube wall pipeline threaded sealing structure, including line ports, connecting bend, it is arranged on the line ports at connecting bend two ends, described connecting bend is connected by sealing structure with described line ports, it is characterized in that: described sealing structure includes rubber seal, rustless steel back-up ring, check ring, on described line ports, it is provided with annular slot near one end of described connecting bend, described check ring is arranged in described annular slot, rustless steel back-up ring it is provided with between described check ring and described connecting bend, on described rustless steel back-up ring, it is provided with chamfering groove with described connecting bend contact position, it is provided with the sealing ring with its mating shapes in described chamfering groove.
Specific embodiment: as shown in Figure 1, pipeline structure of the present utility model includes straight tube line ports 1, inner thread elbow 2, switching straight tube 3, straight tube flange 4, the two ends of inner thread elbow 2 are connected by sealing structure with straight tube line ports 1, switching straight tube 3 respectively, switching straight tube 3 is connected with straight tube flange 4, straight tube flange 4 end is provided with flange 5, and flange 5 is for being connected with other pipeline structures.
Sealing structure between inner thread elbow 2 and straight tube line ports 1: on described straight tube line ports 1, be provided with annular slot near one end of described inner thread elbow 2, described check ring 8 is arranged in described annular slot, it is provided with rustless steel back-up ring 7 between described check ring 8 and described inner thread elbow 2, on described rustless steel back-up ring 7 and described inner thread elbow 2 contact position is provided with chamfering groove, is provided with the O type rubber seal 6 with its mating shapes in described chamfering groove；
Sealing structure between inner thread elbow 2 and switching straight tube 3: on described switching straight tube 3, be provided with annular slot near one end of described inner thread elbow 2, described check ring 8 is arranged in described annular slot, it is provided with rustless steel back-up ring 7 between described check ring 8 and described inner thread elbow 2, on described rustless steel back-up ring 7 and described inner thread elbow 2 contact position is provided with chamfering groove, is provided with the O type rubber seal 6 with its mating shapes in described chamfering groove.
Annular slot and chamfering groove are and mark in the drawings.
Check ring 8 is arranged in annular slot, plays the effect of fixing rustless steel back-up ring 7, mounting O-shaped rubber seal 6 in the chamfering groove of rustless steel back-up ring 7, will not radial deformation after ensureing the extruding of O type rubber seal 6, after screw thread screws, compress O type rubber seal 6, play sealing function.This Sealing Technology does not result in pipeline undergauge, causes fluid resistance to become big, solves flange 5 sealing means and sealing surface irregular problem during welding simultaneously.
Above example of the present utility model is described in detail, but described content has been only preferred embodiment of the present utility model, it is impossible to be considered for limiting practical range of the present utility model.All equalizations made according to this utility model application range change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (5)
1. a thick tube wall pipeline threaded sealing structure, including line ports, connecting bend, it is arranged on the line ports at connecting bend two ends, described connecting bend is connected by sealing structure with described line ports, it is characterized in that: described sealing structure includes rubber seal, rustless steel back-up ring, check ring, on described line ports, it is provided with annular slot near one end of described connecting bend, described check ring is arranged in described annular slot, rustless steel back-up ring it is provided with between described check ring and described connecting bend, on described rustless steel back-up ring, it is provided with chamfering groove with inner thread elbow contact position, it is provided with the sealing ring with its mating shapes in described chamfering groove.
2. thick tube wall pipeline threaded sealing structure according to claim 1, it is characterised in that described connecting bend two ends are connected by described sealing structure with straight tube line ports and switching straight tube respectively, and described connecting bend is inner thread elbow.
3. thick tube wall pipeline threaded sealing structure according to claim 2, it is characterized in that on described straight tube line ports, be provided with annular slot near one end of described inner thread elbow, described check ring is arranged in described annular slot, rustless steel back-up ring it is provided with between described check ring and described inner thread elbow, on described rustless steel back-up ring and described inner thread elbow contact position is provided with chamfering groove, is provided with the sealing ring with its mating shapes in described chamfering groove.
4. the thick tube wall pipeline threaded sealing structure according to Claims 2 or 3, it is characterized in that on described switching straight tube, be provided with annular slot near one end of described inner thread elbow, described check ring is arranged in described annular slot, rustless steel back-up ring it is provided with between described check ring and described inner thread elbow, on described rustless steel back-up ring and described inner thread elbow contact position is provided with chamfering groove, is provided with the sealing ring with its mating shapes in described chamfering groove.
5. thick tube wall pipeline threaded sealing structure according to claim 4, it is characterised in that described sealing ring is O type rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141114.4U CN205388203U (en) | 2015-12-30 | 2015-12-30 | Thick pipe wall pipeline thread sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141114.4U CN205388203U (en) | 2015-12-30 | 2015-12-30 | Thick pipe wall pipeline thread sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388203U true CN205388203U (en) | 2016-07-20 |
Family
ID=56383166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521141114.4U Active CN205388203U (en) | 2015-12-30 | 2015-12-30 | Thick pipe wall pipeline thread sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388203U (en) |
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2015
- 2015-12-30 CN CN201521141114.4U patent/CN205388203U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |