CN215891145U - Sealing structure and sealing valve - Google Patents
Sealing structure and sealing valve Download PDFInfo
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- CN215891145U CN215891145U CN202121592386.1U CN202121592386U CN215891145U CN 215891145 U CN215891145 U CN 215891145U CN 202121592386 U CN202121592386 U CN 202121592386U CN 215891145 U CN215891145 U CN 215891145U
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Abstract
The utility model belongs to the technical field of sealing, and particularly relates to a sealing structure and a sealing valve. The sealing structure comprises a sealing support and a flexible sealing piece, wherein the sealing support is annularly arranged on the retaining ring, and the flexible sealing piece is fixed in the sealing support and used for tightly adhering to the valve plate when the valve plate is pressed to deform. The utility model is used for solving the problem of poor sealing performance of the valve. Set up sealed support and flexible sealing member on the retaining ring, both avoided the pipeline in the high temperature flue gas dust erode and wear, do not hinder the smooth through of high temperature flue gas again, in addition, flexible sealing member closely laminates the valve plate when by the valve plate oppression, plays better sealed effect.
Description
Technical Field
The utility model belongs to the technical field of sealing, and particularly relates to a sealing structure and a sealing valve.
Background
Waste heat power generation is a technology for converting redundant heat energy in the production process into electric energy. The waste heat power generation not only saves energy, but also is beneficial to environmental protection. An important device for cogeneration is a waste heat boiler. It uses the heat or combustible substances in working media such as waste gas and waste liquid as heat source to produce steam for power generation. Because the working medium temperature is not high, the boiler has large volume and large metal consumption.
At present, kiln tail boiler flue gas pipeline valve is electric butterfly valve, is difficult to closely laminating when the valve plate of butterfly valve contacts with the sealing washer on the valve body again, and simultaneously, valve body and the valve plate in the high temperature flue are heated and are out of shape easily, lead to the leakproofness not good, and then the molding is revealed, has wasted a large amount of utilizable heat energy when leading to waste heat power generation.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application embodiment will solve lies in overcoming prior art's not enough, provides a seal structure and seal valve for solve the problem that valve sealing performance is not good.
The technical scheme for solving the technical problems in the embodiment of the application is as follows: a sealing structure is applied to a sealing valve, the sealing valve comprises a valve body, a valve plate and a retainer ring which is arranged on the inner side of the valve body and matched with the valve plate, and the sealing structure comprises:
the sealing support is annularly arranged on the retaining ring;
the flexible sealing element is fixed in the sealing support and is used for clinging to the valve plate when the flexible sealing element is pressed by the valve plate to deform.
Compared with the prior art, the technical scheme has the following beneficial effects:
set up sealed support and flexible sealing member on the retaining ring, both avoided the pipeline in the high temperature flue gas dust erode and wear, do not hinder the smooth through of high temperature flue gas again, in addition, flexible sealing member closely laminates the valve plate when by the valve plate oppression, plays better sealed effect.
Further, the flexible seal height is greater than the height of the sealed bracket.
Set up the height that highly is higher than sealed support with flexible sealing member, ensure that flexible sealing member top stretches out in sealed support, when valve plate and seal structure contact again, earlier with flexible sealing member contact laminating, guarantee sealed effect.
Further, the flexible seal is a flexible graphite seal.
The flexible graphite sealing element formed by utilizing the good high-temperature resistance of graphite has good high-temperature-resistant and wear-resistant effects in a pipeline for recovering waste heat.
The embodiment also discloses a sealing valve, which comprises:
the inner side of the first valve body is provided with a first check ring, the upper matching cover of the first check ring is provided with a first valve plate, and the side surface of the inner edge of the first check ring is provided with the sealing structure opposite to the side surface of one edge of the valve plate;
a second check ring is arranged on the inner side of the second valve body, a second valve plate is arranged on the second check ring in a matched cover mode, and the sealing structure opposite to the side face of the second valve plate is arranged on the side face of the inner edge of the second check ring;
the first valve body and the second valve body are spliced to form a valve group matched with a pipeline.
The valve group formed by splicing the two valve bodies is assembled in the pipeline, the two valve bodies are correspondingly opened and closed by the two valve plates respectively, so that the first valve plate and the second valve plate can be opened and closed respectively, airflow is uniformly distributed, the flow resistance is small, the opening and closing torque is small, the action is flexible and reliable, and meanwhile, the sealing valve has the beneficial effect of the sealing structure due to the fact that the sealing structure is adopted between the valve plates and the retaining rings, and the description is omitted.
Furthermore, the first valve body and the second valve body are identical in structure, and are arranged in a rotational symmetry mode around the center of the splicing position.
Further, the first valve body and the second valve body are identical in structure, and the first valve body and the second valve body are arranged along the splicing surface in a mirror symmetry mode.
Set up to the structure the same with valve body two for valve body one and valve body two can choose for use two concatenations wantonly can, reduce the matching problem during the assembly, simultaneously, set up valve body one and valve body two to mirror symmetry or rotational symmetry, can make the valve group whole that the concatenation formed be applicable to in different pipelines such as main line or bypass pipeline, application scope is wide.
Further, still include:
one end of the first swing arm is connected with the first valve plate, and the other end of the first swing arm is rotatably connected with a valve body through a valve shaft;
and one end of the second swing arm is connected with the second valve plate, and the other end of the second swing arm is rotatably connected with the second valve body through a valve shaft.
Furthermore, the first swing arm and the second swing arm have the same structure, one end, far away from the valve shaft, of the first swing arm is hinged to the first valve plate, and a waist hole movably connected with the first valve plate is formed in the first swing arm.
Utilize waist hole with swing arm and valve plate swing joint, the valve plate is articulated with the tip of swing arm, through waist hole swing joint department, can be so that the valve plate rotates around articulated department, when sealed, plays the planar effect of governing valve plate for the valve plate plane can freely laminate with flexible sealing member.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an overall structure of a seal structure according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of the overall structure of a sealing valve according to embodiment 2 of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Reference numerals:
1. a sealing structure;
2. sealing the bracket; 3. a flexible seal;
4. a first valve body; 5. a second valve body;
6. a first check ring; 7. a second check ring;
8. a first valve plate; 9. a second valve plate;
10. a valve block;
11. a first swing arm; 12. a second swing arm;
13. a waist hole;
14. a valve plate; 15. and a retainer ring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
As shown in fig. 1, a sealing structure 1 provided in an embodiment of the present invention is applied to a sealing valve, where the sealing valve includes a valve body, a valve plate 14, and a retainer ring 15 disposed inside the valve body and matching with the valve plate 14, and the sealing structure 1 includes:
the sealing support 2 is annularly arranged on the retainer ring 15;
and the flexible sealing element 3 is fixed in the sealing support 2 and is used for clinging to the valve plate 14 when being pressed and deformed by the valve plate 14.
In particular, the sealing carrier 2 has a recess in which the flexible seal 3 is fittingly fixed.
Compared with the prior art, the technical scheme has the following beneficial effects:
set up sealed support 2 and flexible sealing member 3 on retaining ring 15, both avoided the pipeline high temperature flue gas dust to erode and wear, do not hinder the smooth through of high temperature flue gas again, in addition, flexible sealing member 3 closely laminates valve plate 14 when being oppressed by valve plate 14, plays better sealed effect.
Wherein the flexible seal 3 has a height greater than the height of the sealed holder 2;
specifically, the cross section of the flexible sealing element 3 is rectangular, and the height of the cross section of the flexible sealing element 3 is higher than the depth of the groove in the sealing support 2, so that the flexible sealing element 3 is ensured to extend out of the sealing support 2.
Set up the height that is higher than sealing support 2 with flexible sealing member 3, ensure that flexible sealing member 3 top stretches out in sealing support 2, when valve plate 14 contacts with seal structure 1 again, earlier with flexible sealing member 3 contact laminating, guarantee sealed effect.
In particular, the flexible seal 3 is a flexible graphite seal.
The flexible graphite sealing element formed by utilizing the good high-temperature resistance of graphite has good high-temperature-resistant and wear-resistant effects in a pipeline for recovering waste heat.
Example 2
As shown in fig. 2 and 3, the present embodiment further discloses a sealing valve, which includes: a first valve body 4 and a second valve body 5;
a first check ring 6 is arranged on the inner side of the first valve body 4, a first valve plate 8 is arranged on the first check ring 6 in a matched cover mode, and the sealing structure 1 as in embodiment 1 is arranged on the side face of the inner edge of the first check ring 6, opposite to the side face of the edge of the first valve plate 8;
a second check ring 7 is arranged on the inner side of the second valve body 5, a second valve plate 9 is arranged on the second check ring 7 in a matched cover mode, and the sealing structure 1 as in embodiment 1 is arranged on the side face of the inner edge of the second check ring 7, opposite to the side face of the edge of the second valve plate 9;
the first valve body 4 and the second valve body 5 are spliced to form a valve group 10 matched with a pipeline.
Specifically, a first check ring 6 and a second check ring 7 are arranged in a first valve body 4 and a second valve body 5 to respectively form a channel for passing through smoke, the edge profiles of a first valve plate 8 and a second valve plate 9 are larger than the inner edge profiles of the first check ring 6 and the second check ring 7 to ensure that the first valve plate 8 and the second valve plate 9 correspondingly cover the channel, the sealing structure 1 in the embodiment 1 is arranged on the edge side surface of the first check ring 6 corresponding to the first valve plate 8 in overlapping joint, and similarly, the sealing structure 1 is also arranged on the edge side surface of the second check ring 7 corresponding to the second valve plate 9 in overlapping joint, so that when the sealing structure is closed, the channel in the first check ring 6 and the second check ring 7 is completely closed by the first valve plate 8 and the second valve plate 9 in pressing joint on the sealing structure 1.
The valve group 10 formed by splicing the two valve bodies is arranged in a pipeline, and the two valve bodies are correspondingly opened and closed by the two valve plates respectively, so that the first valve plate 8 and the second valve plate 9 can be opened and closed respectively, airflow is uniformly distributed, the flow resistance is small, the opening and closing torque is small, the action is flexible and reliable, and meanwhile, the sealing valve has a better sealing effect when being closed due to the fact that the sealing structure 1 is arranged between the valve plates and the retaining rings.
The first valve body 4 and the second valve body 5 are identical in structure, the first valve body 4 and the second valve body 5 are arranged in a rotational symmetry mode around the center of the splicing position, or the first valve body 4 and the second valve body 5 are arranged in a mirror symmetry mode along the splicing surface.
Set up to the structure the same with valve body one 4 and valve body two 5 for valve body one 4 and valve body two 5 can choose for use two concatenations wantonly can, reduce the matching problem during the assembly, simultaneously, set up valve body one 4 and valve body two 5 into mirror symmetry or rotational symmetry, can make the group valve 10 that the concatenation formed wholly be applicable to in different pipelines such as main line or bypass pipeline, application scope is wide.
In this embodiment, the method further includes: a first swing arm 11 and a second swing arm 12; one end of the first swing arm 11 is connected with the first valve plate 8, the other end of the first swing arm is rotatably connected with the first valve body 4 through the valve shaft, one end of the second swing arm 12 is connected with the second valve plate 9, and the other end of the second swing arm is rotatably connected with the second valve body 5 through the valve shaft.
The first swing arm 11 and the second swing arm 12 are identical in structure, one end, far away from the valve shaft, of the first swing arm 11 is hinged to the first valve plate 8, and a waist hole 13 movably connected with the valve plate is formed in the first swing arm 11.
Utilize waist hole 13 with swing arm and valve plate swing joint, the valve plate is articulated with the tip of swing arm, through waist hole 13 swing joint department, can be so that the valve plate rotates around articulated department, when sealed, plays the planar effect of governing valve plate for the valve plate plane can freely laminate with flexible sealing member 3.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a seal structure, is applied to the seal valve, the seal valve includes valve body, valve plate and sets up at the valve body inboard with the retaining ring that the valve plate matches, its characterized in that, this seal structure includes:
the sealing support is annularly arranged on the retaining ring;
the flexible sealing element is fixed in the sealing support and is used for clinging to the valve plate when the flexible sealing element is pressed by the valve plate to deform.
2. The seal structure of claim 1, wherein the flexible seal height is greater than the seal holder height.
3. The seal structure of claim 1, wherein the flexible seal is a flexible graphite seal.
4. A sealing valve, comprising:
a first valve body, wherein a first check ring is arranged on the inner side of the first valve body, a first valve plate is arranged on an upper matching cover of the first check ring, and the side surface of the inner edge of the first check ring is provided with a sealing structure as claimed in any one of claims 1 to 3 opposite to the side surface of the edge of the valve plate;
a second valve body, wherein a second check ring is arranged on the inner side of the second valve body, a second valve plate is arranged on the second check ring in a matching cover, and the side surface of the inner edge of the second check ring is provided with a sealing structure which is opposite to the side surface of the edge of the second valve plate and is as defined in any one of claims 1 to 3;
the first valve body and the second valve body are spliced to form a valve group matched with a pipeline.
5. The sealing valve according to claim 4, wherein said first valve body and said second valve body are identical in structure, said first valve body and said second valve body being disposed in rotational symmetry about the center of the splice.
6. The sealing valve according to claim 4, wherein said first valve body and said second valve body are identical in structure, and said first valve body and said second valve body are arranged in mirror symmetry along a joint plane.
7. The sealing valve according to claim 4, further comprising:
one end of the first swing arm is connected with the first valve plate, and the other end of the first swing arm is rotatably connected with a valve body through a valve shaft;
and one end of the second swing arm is connected with the second valve plate, and the other end of the second swing arm is rotatably connected with the second valve body through a valve shaft.
8. The sealing valve according to claim 7, wherein said first swing arm and said second swing arm have the same structure, and one end of said first swing arm, remote from said valve shaft, is hinged to said first valve plate, and said first swing arm is provided with a waist hole movably connected to said valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592386.1U CN215891145U (en) | 2021-07-13 | 2021-07-13 | Sealing structure and sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592386.1U CN215891145U (en) | 2021-07-13 | 2021-07-13 | Sealing structure and sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215891145U true CN215891145U (en) | 2022-02-22 |
Family
ID=80345394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121592386.1U Active CN215891145U (en) | 2021-07-13 | 2021-07-13 | Sealing structure and sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215891145U (en) |
-
2021
- 2021-07-13 CN CN202121592386.1U patent/CN215891145U/en active Active
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