CN213479223U - Metal hard seal butterfly valve - Google Patents
Metal hard seal butterfly valve Download PDFInfo
- Publication number
- CN213479223U CN213479223U CN202022411777.0U CN202022411777U CN213479223U CN 213479223 U CN213479223 U CN 213479223U CN 202022411777 U CN202022411777 U CN 202022411777U CN 213479223 U CN213479223 U CN 213479223U
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- Prior art keywords
- side wall
- sealing
- sealing ring
- wall
- butterfly
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- Expired - Fee Related
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- 239000002184 metal Substances 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 86
- 210000001503 joint Anatomy 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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Abstract
The application is a metal hard seal butterfly valve, comprising a valve body, a valve rod and a butterfly plate, wherein an inclined seal structure is butt-jointed between the inner cavity of the valve body and the outer side wall of the butterfly plate; utilize the slope at sealing ring top, combine the sealing wall bottom to sealing ring top after that, through the increase of the width value of cross-section, and then improve the wearability of metal hard seal butterfly valve to avoid the skew of position, and then improve butterfly valve overall seal's stability.
Description
Technical Field
The application relates to the field of butterfly valves, in particular to a metal hard sealing butterfly valve.
Background
Butterfly valves are widely used in the fields of thermoelectricity, municipal administration, chemical industry and the like, for example: the metal hard sealing butterfly valve is formed by combining a valve body, a valve rod, a butterfly plate and a corresponding driving structure into a whole.
Wherein, the in-process that the metal butterfly valve sealed firmly uses, adopts the sealing ring of stereoplasm to combine with the valve body inner wall to form the seal structure of stereoplasm, and in specific application, the designer of this application discovers, often leads to the inside seal of metal butterfly valve sealed firmly to receive the influence because of wearing and tearing and the unstability in position.
How to improve the wearability of metal hard seal butterfly valve to avoid the skew of position, with the stability that improves the butterfly valve whole seal.
Disclosure of Invention
The purpose of the application is: the wear resistance of the metal hard seal butterfly valve is improved, and the position deviation is avoided, so that the overall sealing stability of the butterfly valve is improved.
The purpose of this application is accomplished through following technical scheme, a metal butterfly valve that seals firmly, including valve body, valve rod and butterfly plate, wherein
An inclined sealing structure is butted between the inner cavity of the valve body and the outer side wall of the butterfly plate;
a sealing wall is projected inwards from the inner cavity of the valve body;
a sealing ring is fixed on the outer side wall of the butterfly plate;
the bottom of the sealing wall on the outer side surface of the sealing wall is butted with the top of the sealing ring on the outer side surface of the sealing ring, and the section of the butted position is oblique;
the width value of the bottom section of the sealing wall is larger than that of the top section of the sealing ring.
Preferably, the first and second electrodes are formed of a metal,
the top wall of the disc at the top of the outer side wall of the butterfly plate is abutted against one side wall of the top of the sealing ring;
a pressure plate is fixed on the outer side wall of the butterfly plate;
the top of the side wall of the pressure plate abuts against the other side wall of the top of the sealing ring.
Preferably, the first and second electrodes are formed of a metal,
a gap is formed between the side wall of the pressure plate and the side wall of the butterfly plate.
Preferably, the first and second electrodes are formed of a metal,
the top of the outer side wall of the butterfly plate is inwards sunken with a disc top groove;
the sealing ring is inserted in the disc top groove;
the thickness of the section of the sealing ring is larger than that of the section of the disc top groove.
Preferably, the first and second electrodes are formed of a metal,
a groove wall notch is sunken in the inner side wall of the disc top groove;
a sealing groove ring is embedded in the groove wall notch;
the outer side wall of the sealing groove ring is attached to the side wall of the sealing ring in an abutting mode.
Compared with the prior art, the application has the following obvious advantages and effects:
1. utilize the slope at sealing ring top, combine the sealing wall bottom to sealing ring top after that, through the increase of the width value of cross-section, and then improve the wearability of metal hard seal butterfly valve to avoid the skew of position, and then improve butterfly valve overall seal's stability.
Drawings
Fig. 1 is a diagram of the overall structural arrangement of the present application.
Fig. 2 is an enlarged view of the structure of the portion a in fig. 1 of the present application.
List of parts in this application
Detailed Description
Specific embodiments thereof are described below in conjunction with the following description and the accompanying drawings to teach those skilled in the art how to make and use the best mode of the present application. For the purpose of teaching application principles, the following conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the application. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. In the present application, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not used to limit the scope of the invention, and the relative relationship between the terms and the corresponding terms may be changed or adjusted without substantial technical change. Thus, the present application is not limited to the specific embodiments described below, but only by the claims and their equivalents.
Fig. 1-2 illustrate one embodiment of a metal-to-metal butterfly valve of the present application.
As shown in fig. 1, in the present embodiment,
a metal hard seal butterfly valve comprises a valve body 5, a valve rod 6 and a butterfly plate 8, wherein an inclined seal structure is butted between an inner cavity of the valve body 5 and the outer side wall of the butterfly plate 8; utilize the slope at sealing ring 7 top, combine the sealed wall bottom 5a1 to butt joint sealing ring top 7a, through the increase of the width value of cross-section, and then improve the wearability of the metal butterfly valve that seals firmly to avoid the skew of position, and then improve the stability of butterfly valve whole seal.
The structural features of the specific sealing ring 7 are illustrated:
1. the butterfly valve 100 adopts the pure metal sealing ring 7, abandons the traditional multi-layer sealing structure, utilizes butt joint between metal structure layers to seal pure metal, and has stronger wear resistance and cavitation resistance.
2. The hard metal seal ring can be made of different metal materials according to the requirements on the seal surface, so that the requirements of customers on different hardness are met, and further, the metal hard seal ring with the gradient of martensitic stainless steel, austenitic stainless steel, hard alloy, artificial diamond and the like can be formed by advanced processes such as space plasma spraying, Ethernet laser sputtering, vacuum protection, infiltration and surfacing and the like, and the materials are selected according to the structure and the functions.
It should be noted that, as shown in fig. 1, in the embodiment of the present application,
the bottom cover 1 of the butterfly valve 100 is fixed along the bottom of the valve body 5, the bottom cover 1 is combined with the bottom of the valve rod 6 to be sleeved and fixed in a closed mode, the disc plate 8 is fixed on the valve rod 6, and the disc plate 8 is fixedly combined on the valve rod 6 through the pin shaft 9.
In order to enhance the sealing performance of the lower part of the valve rod 6, the lower structure of the valve rod 6 is provided with a bearing 4 at the joint position of the valve rod 6 and the valve body 5, a plurality of bearings 4 are arranged, a sealing structure is arranged between the bearings, and the top of each bearing 4 is provided with a sealing gasket for sealing.
Wherein, for the leakproofness of reinforcing valve rod 6 upper portion position, the position of pegging graft between superstructure of valve rod 6 and valve body 5 is equipped with packing 14, fills through packing 14, and packing 14 forms annular sealing layer structure, and is provided with multilayer sealed packing layer to set up gland 17 at the top and carry out fixed seal to seal structure.
It is further noted that, as shown in fig. 1, in the present embodiment,
combine specific structure to utilize worm wheel 22 to drive the top of valve rod 6, therefore in specific structure, the top of valve rod 6 sets up the gear and then drives it by the worm wheel, and in the auxiliary structure, sets up support 20 and carries out the installation of support nature to the housing outside worm wheel 22.
It should be noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
in order to improve the stability of sealing, an inclined surface structure is arranged for sealing butt joint, wherein a sealing wall 5a protrudes inwards from the inner cavity of the valve body 5; a sealing ring 7 is fixed on the outer side wall of the butterfly plate 8; specifically, the bottom 5a1 of the sealing wall on the outer side of the sealing wall 5a is butted against the top 7a of the sealing ring on the outer side of the sealing ring 7, and the section of the butted position is oblique;
wherein, in specific sealing knot department, for supplementary seal, lead to offset after avoiding wearing and tearing, and unable abundant butt joint, consequently, set up the inclined seal structure, and the position inclined plane at top is great, can further compensate the wearing and tearing of sealing ring 7, consequently, the width value in specific sealing wall bottom 5a1 cross-section is greater than the width value in sealing ring top 7a cross-section, the hardness of sealing ring 7 is less than valve body 5 in the specific wearing and tearing, keep the wearing and tearing of sealing ring 7 all the time, and set up quick detachable, the fixed knot who easily changes constructs.
It should be noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
set up quick detachable, the fixed knot who easily changes constructs, adopt the mode of centre gripping to dock, combine figure 2 left side position to be that sealing ring 7 is fixed by dish roof 8a centre gripping, right side position by clamp plate 10, and in the concrete scheme, clamp plate 10 carries out fixed mounting along the lateral wall of butterfly plate 8.
In a further positioning structure, in order to ensure that the top of the sealing ring 7 extends out and the position of the side wall is fully clamped, the disc top wall 8a along the top of the outer side wall of the butterfly plate 8 abuts against the left side wall of the top 7a of the sealing ring; the top of the side wall of the pressure plate 10 abuts against the right side wall of the seal ring top 7 a.
It should be noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
in a specific structure, in order to maintain the structure that the sealing ring 7 is pressed, a gap c is formed between the side wall of the pressing plate 10 and the side wall of the butterfly plate 8, namely, the gap c is used for fixing and abutting the sealing ring 7 in a deformable manner, and the sealing ring 7 with different thicknesses can be installed and positioned by using the gap c.
It is further noted that, as shown in fig. 1 and 2, in the embodiment of the present application,
in order to improve the pressing effect of the sealing ring 7 and avoid the shaking of the sealing ring 7 in the disc top groove 8b, the disc top groove 8b is inwards sunken along the top of the outer side wall of the butterfly plate 8; and the sealing ring 7 is inserted into the dish top groove 8b in a butting way; and the specific design scheme is that the value of the section thickness m of the sealing ring 7 in the pressing structure is larger than the value of the section thickness n of the disc top groove 8 b.
Specifically, as shown in fig. 1 and 2, in the embodiment of the present application,
the installation of combination dish top groove 8b and sealing ring 7 fully improves the sealed effect of inner structure to improve the location nature of sealing ring 7, consequently can set up soft material like sealed glue or sealing ring and carry out the location of leakproofness to sealing ring 7, consequently, combines the cell wall notch 8c that specific sealed cross-sectional position established to the rectangle. The groove wall notch 8c is recessed along the inner side wall of the disc top groove 8b, a sealing groove ring 12 with the same cross section is arranged, the surface of the sealing groove ring 12 can protrude out of the right side of the groove wall notch 8c, the left side of the sealing groove ring 12 is embedded into the groove wall notch 8c to form a sealing and attaching structure in a combined mode, and the outer side wall of the sealing groove ring 12 is attached to the side wall of the sealing ring 7 in a butting mode.
Since any modifications, equivalents, improvements, etc. made within the spirit and principles of the application may readily occur to those skilled in the art, it is intended to be included within the scope of the claims of this application.
Claims (5)
1. The utility model provides a metal seals butterfly valve firmly, including valve body (5), valve rod (6) and butterfly plate (8), its characterized in that: the above-mentioned
An inclined sealing structure is butted between the inner cavity of the valve body (5) and the outer side wall of the butterfly plate (8);
a sealing wall (5a) is projected inwards from the inner cavity of the valve body (5);
a sealing ring (7) is fixed on the outer side wall of the butterfly plate (8);
the bottom (5a1) of the sealing wall on the outer side of the sealing wall (5a) is butted with the top (7a) of the sealing ring on the outer side of the sealing ring (7), and the section of the butted position is oblique;
the section width of the bottom (5a1) of the sealing wall is larger than that of the top (7a) of the sealing ring.
2. The metal hard seal butterfly valve of claim 1, wherein: the above-mentioned
The top wall (8a) of the top of the outer side wall of the butterfly plate (8) is abutted against one side wall of the top part (7a) of the sealing ring;
a pressure plate (10) is also fixed on the outer side wall of the butterfly plate (8);
the top of the side wall of the pressure plate (10) abuts against the other side wall of the top part (7a) of the sealing ring.
3. The metal hard seal butterfly valve of claim 2, wherein: the above-mentioned
A gap (c) is formed between the side wall of the pressure plate (10) and the side wall of the butterfly plate (8).
4. The metal hard seal butterfly valve of claim 2, wherein: the above-mentioned
The top of the outer side wall of the butterfly plate (8) is inwards sunken with a dish top groove (8 b);
the sealing ring (7) is inserted into the disc top groove (8 b);
the value of the section thickness (m) of the sealing ring (7) is larger than the value of the section thickness (n) of the disc top groove (8 b).
5. The metal hard seal butterfly valve of claim 4, wherein: the above-mentioned
A groove wall notch (8c) is sunken in the inner side wall of the disc top groove (8 b);
a sealing groove ring (12) is embedded in the groove wall notch (8 c);
the outer side wall of the sealing groove ring (12) is abutted and attached to the side wall of the sealing ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022411777.0U CN213479223U (en) | 2020-10-27 | 2020-10-27 | Metal hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022411777.0U CN213479223U (en) | 2020-10-27 | 2020-10-27 | Metal hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213479223U true CN213479223U (en) | 2021-06-18 |
Family
ID=76369609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022411777.0U Expired - Fee Related CN213479223U (en) | 2020-10-27 | 2020-10-27 | Metal hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213479223U (en) |
-
2020
- 2020-10-27 CN CN202022411777.0U patent/CN213479223U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210618 |