CN219300148U - Valve body sealing connection device - Google Patents
Valve body sealing connection device Download PDFInfo
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- CN219300148U CN219300148U CN202320370284.8U CN202320370284U CN219300148U CN 219300148 U CN219300148 U CN 219300148U CN 202320370284 U CN202320370284 U CN 202320370284U CN 219300148 U CN219300148 U CN 219300148U
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- valve body
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- sealing
- gasket
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Abstract
The application provides a valve body connecting device specifically is a valve body sealing connection device, including valve body flange, butt joint flange, flange gasket two, a plurality of bolt and a plurality of nut, valve body flange lower extreme inner circle downward bulge is equipped with the recess corresponding with the bulge on the valve body flange on the butt joint flange upper surface, is equipped with seal compensation arrangement on valve body flange or the butt joint flange. According to the utility model, by adding the sealing surface between the valve body flange and the butt flange, the direct contact between the flange gasket II and corrosive gas or liquid is avoided, so that the service life of the device is prolonged, and after the distance between two connected flanges is increased by the sealing compensation device and the flange gasket II, the valve body flange and the butt flange still have good sealing performance, so that the outward leakage of the gas or liquid passing through between the valve body flange and the butt flange is effectively prevented.
Description
Technical Field
The disclosure relates to the technical field of valve bodies, in particular to a valve body sealing connection device.
Background
The valve body is made of different materials according to different process media. Common materials are cast iron, cast steel, stainless steel, carbon steel, plastics, copper and the like. Flanges are generally connected and installed at two ends of the valve body and are used for sealing and connecting pipelines, pipe fittings or equipment. Flange (Flange), also known as Flange collar or Flange. The flange is a part for connecting pipes and is used for connecting the pipe ends; the flange is also used on an inlet and an outlet of the equipment and is used for connecting two pieces of equipment; the flange (flange) connection is to fix two pipes, pipe fittings or devices on one flange plate, and fasten the flange pads between the two flange plates by bolts to complete the connection. Some pipe fittings and equipment are already provided with flanges and are also flanged. Flange connection is an important connection mode for pipeline construction. The flange connection is convenient to use and can bear larger pressure. In industrial pipelines, flange connections are used quite extensively.
The utility model with the publication number of CN211820936U relates to the technical field of valve bodies and discloses a valve body sealing device, which comprises a base, wherein the top of the base is fixedly connected with a mounting plate, the top of the mounting plate is fixedly connected with a protective shell, the inner bottom wall of the protective shell is provided with a sliding groove, the inner bottom wall of the sliding groove is movably connected with a sliding block, the top of the sliding block is fixedly connected with a squeezing plate, one side of the squeezing plate is fixedly connected with a squeezing pad, one side of the squeezing pad is fixedly connected with a spring, one side of the squeezing pad is fixedly connected with a valve body, one side of the valve body is fixedly connected with a valve body connecting pipe,
the utility model achieves the aim of good sealing effect of the sealing device, solves the problem of poor sealing effect of the common sealing device, improves the practicability of the sealing device, effectively prevents the valve body from being corroded, reduces the corrosion rate of the valve body, reduces the replacement frequency of the valve body by people, and brings great convenience for life of people. In view of this, we propose a valve body sealing connection device.
Disclosure of Invention
In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide a valve body sealing connection.
In a first aspect, the present application provides a valve body sealing connection comprising:
the valve body flange is provided with a butt joint flange, a flange gasket II is arranged between the valve body flange and the butt joint flange, the valve body flange is connected with the butt joint flange through a plurality of bolts and a plurality of nuts, an inner ring at the lower end of the valve body flange protrudes downwards, and a groove corresponding to the protruding part on the valve body flange is arranged on the upper surface of the butt joint flange and used for increasing a sealing surface between the valve body flange and the butt joint flange;
and a sealing compensation device for performing sealing compensation on the distance between the valve body flange and the butt flange after the bolts and the nuts are prevented from loosening is arranged on the valve body flange or the butt flange.
According to the technical scheme provided by the embodiment of the application, the valve body flange, the flange gasket II and the butt flange are provided with a plurality of round holes which are communicated with each other and correspond to each other, the bolts penetrate through the round holes, and the nuts are installed at the lower ends of the bolts in a threaded mode.
According to the technical scheme provided by the embodiment of the application, the gasket groove for stably placing the flange gasket II is formed in the upper surface of the butt joint flange, and the flange gasket I is installed on the groove.
According to the technical scheme provided by the embodiment of the application, the sealing compensation device is formed by a plurality of thrust springs and sealing rubber rings, and one ends of the thrust springs are arranged on the sealing rubber rings.
According to the technical scheme provided by the embodiment of the application, the valve body flange or the butt flange is provided with the circular ring groove, and the sealing rubber ring is vertically and vertically slidably arranged in the circular ring groove.
In summary, the technical scheme specifically discloses a valve body sealing connection device, and by adding the sealing surface between the valve body flange and the butt flange, the direct contact between the flange gaskets II and corrosive gas or liquid is avoided, so that the service life of the valve body sealing connection device is prolonged;
after the distance between two connected flanges is increased through the sealing compensation device and the flange gasket II, good sealing performance is still achieved between the valve body flange and the butt flange, and accordingly outward leakage of gas or liquid passing through between the valve body flange and the butt flange is effectively prevented.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view, partially in section, of the present utility model.
FIG. 3 is a partially cut-away exploded view of the present utility model.
Reference numerals in the drawings: 1. a valve body flange; 2. a bolt; 3. a butt flange; 4. a thrust spring; 5. a nut; 6. sealing the rubber ring; 7. a round hole; 8. circular ring grooves; 9. a flange gasket I; 10. a flange gasket II; 11. a gasket groove; 12. a groove.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Referring to fig. 1 to 3, a valve body sealing connection device includes a valve body flange 1, the valve body flange 1 is a flange fixedly connected with one end of a valve body, an inner ring at the lower end of the valve body flange 1 protrudes downwards to form a cylinder shape, a butt flange 3 on a pipeline, a pipe fitting or a device is installed below the valve body flange 1, a groove 12 corresponding to the protruding portion on the valve body flange 1 is arranged on the upper surface of the butt flange 3, a sealing surface between the valve body flange 1 and the butt flange 3 is increased, and the inner ring at the lower end of the valve body flange 1 protrudes downwards to form a cylindrical bottom surface and a sealing surface at the periphery of the cylinder shape.
It should be noted that, if the gas or liquid passing through between the valve body flange 1 and the butt flange 3 has corrosiveness, the corrosive gas or liquid will generally first contact with each other to corrode the flange gasket one 9, after the flange gasket one 9 is damaged, the gas or liquid can only reach the part contacting the downward bulge of the inner ring of the valve body flange 1 and the butt flange 3 to corrode, and finally reach the flange gasket two 10 through the part contacting the downward bulge of the inner ring of the valve body flange 1 and the butt flange 3, thereby avoiding the direct contact between the flange gaskets two 10 and the corrosive gas or liquid, and further prolonging the service life of the novel valve.
In this embodiment, the first flange gasket 9 is fixedly installed between the top surface of the groove 12 and the valve body flange 1 in a pressing and sealing manner, the inner wall around the groove 12 and the inner ring at the lower end of the valve body flange 1 protrude downwards to form a cylindrical periphery to be in contact with each other, the second flange gasket 10 is fixedly installed between the valve body flange 1 and the butt flange 3, the gasket groove 11 for stably placing the second flange gasket 10 is formed in the upper surface of the butt flange 3, the second flange gasket 10 is fixedly installed in the gasket groove 11, the second flange gasket 10 is made of rubber material, the thickness of the second flange gasket 10 is higher than the height of the gasket groove 11 in an unstressed state, and when the second flange gasket 10 is compressed into the gasket groove 11, so that when the bolts 2 and the nuts 5 are just loosened, the increased distance between the valve body flange 1 and the butt flange 3 is smaller, the pressure applied to the second flange gasket 10 is reduced, the original thickness is gradually restored, and the second flange gasket 10 still has good sealing performance.
In this embodiment, the valve body flange 1, the flange gasket two 10 and the butt flange 3 are all provided with a plurality of round holes 7 which are mutually communicated and correspond to each other, the bolt 2 passes through the round hole 7, the nut 5 is fixedly arranged at the lower end of the bolt 2 through threads, and the valve body flange 1 or the butt flange 3 is provided with a sealing compensation device for preventing the bolt 2 and the nut 5 from loosening and then performing sealing compensation on the distance between the valve body flange 1 and the butt flange 3.
In this embodiment, the seal compensation device is formed by fixedly mounting one ends of a plurality of thrust springs 4 on a seal rubber ring 6, wherein the seal rubber ring 6 is vertically and vertically slidably mounted in a circular ring groove 8 on a valve body flange 1 or a butt flange 3, when the seal compensation device is mounted on the valve body flange 1, the circular ring groove 8 is arranged below the valve body flange 1, the lower ends of the plurality of thrust springs 4 are uniformly and fixedly mounted on the seal rubber ring 6, the top surfaces of the plurality of thrust springs 4 are fixedly mounted in the circular ring groove 8, and the seal rubber ring 6 is vertically and vertically slidably mounted in the circular ring groove 8.
In this embodiment, when bolt 2 and nut 5 produce not hard up under gradual change load for distance between two continuous flanges grow, when the increase distance between valve body flange 1 and counterflange 3 is less, the pressure that flange gasket two 10 received reduces, can resume original thickness gradually, and flange gasket two 10 still has good leakproofness, simultaneously, a plurality of thrust spring 4 can promote sealing rubber circle 6, is close to extrusion sealing contact flange gasket two 10, thereby makes and has good leakproofness between valve body flange 1 and the counterflange 3, thereby effectually prevented the gas or the liquid leakage that passes through between valve body flange 1 and the counterflange 3.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (5)
1. A valve body sealing connection comprising:
the valve body flange (1) is provided with a butt flange (3), a flange gasket II (10) is arranged between the valve body flange (1) and the butt flange (3), the valve body flange (1) is connected with the butt flange (3) through a plurality of bolts (2) and a plurality of nuts (5), an inner ring at the lower end of the valve body flange (1) protrudes downwards, and a groove (12) corresponding to the protruding part on the valve body flange (1) is arranged on the upper surface of the butt flange (3) and is used for increasing the sealing surface between the valve body flange (1) and the butt flange (3);
the valve body flange (1) or the butt flange (3) is provided with a sealing compensation device for preventing the bolt (2) and the nut (5) from loosening and then performing sealing compensation on the distance between the valve body flange (1) and the butt flange (3).
2. The valve body sealing connection device according to claim 1, wherein a plurality of round holes (7) corresponding to each other are formed in the valve body flange (1), the flange gasket two (10) and the butt flange (3), the bolt (2) penetrates through the round holes (7), and the nut (5) is installed at the lower end of the bolt (2) in a threaded mode.
3. A valve body sealing connection device according to claim 1, characterized in that the upper surface of the butt flange (3) is provided with a gasket groove (11) for stably placing the flange gasket two (10), and the groove (12) is provided with a flange gasket one (9).
4. A valve body sealing connection device according to claim 1, characterized in that the sealing compensation device is formed by a plurality of thrust springs (4) and sealing rubber rings (6), wherein one ends of the thrust springs (4) are arranged on the sealing rubber rings (6).
5. The valve body sealing connection device according to claim 4, wherein the valve body flange (1) or the butt flange (3) is provided with a circular ring groove (8), and the sealing rubber ring (6) is vertically installed in the circular ring groove (8) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320370284.8U CN219300148U (en) | 2023-03-02 | 2023-03-02 | Valve body sealing connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320370284.8U CN219300148U (en) | 2023-03-02 | 2023-03-02 | Valve body sealing connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219300148U true CN219300148U (en) | 2023-07-04 |
Family
ID=86952499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320370284.8U Active CN219300148U (en) | 2023-03-02 | 2023-03-02 | Valve body sealing connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219300148U (en) |
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2023
- 2023-03-02 CN CN202320370284.8U patent/CN219300148U/en active Active
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