CN220302775U - Bidirectional metal-pressing sealing butterfly valve - Google Patents
Bidirectional metal-pressing sealing butterfly valve Download PDFInfo
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- CN220302775U CN220302775U CN202321868423.6U CN202321868423U CN220302775U CN 220302775 U CN220302775 U CN 220302775U CN 202321868423 U CN202321868423 U CN 202321868423U CN 220302775 U CN220302775 U CN 220302775U
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- valve
- sealing
- butterfly plate
- valve body
- butterfly
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- 238000007789 sealing Methods 0.000 title claims abstract description 92
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 title claims description 17
- 239000002184 metal Substances 0.000 claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 238000004804 winding Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- -1 dirt Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of valves, and particularly relates to a bidirectional metal seal butterfly valve, which comprises: the valve body is internally provided with a flow passage; the butterfly plate is movably arranged in the valve body; the valve rod is arranged on the valve body and used for driving the butterfly plate to move, and a valve rod driving part is arranged at the top of the valve rod; further comprises: the metal sealing piece is of a gamma-shaped metal sealing structure; the valve body connected valve seat is formed by processing a body surfacing positive cone; the metal sealing piece is arranged along the circumferential direction of the butterfly plate, and the valve body conjoined valve seat can be matched with the metal sealing piece to form bidirectional sealing.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to a bidirectional metal seal butterfly valve.
Background
The butterfly valve is also called as a flap valve, is a regulating valve with a simple structure, and can be used for the on-off control of low-pressure pipeline media, wherein a closing member (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to realize opening and closing;
the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly has the functions of cutting off and throttling on a pipeline, and the butterfly valve opening and closing member is a disc-shaped butterfly plate which rotates around the axis of the butterfly valve in the valve body, so that the purpose of opening and closing or adjusting is achieved;
in the use process of the existing butterfly valve, the sealing element and the sealing surface of the valve seat are rubbed with each other in the opening and closing process, so that the abrasion phenomenon of the sealing surface is easy to occur in the frequent opening and closing process of the valve, and the sealing performance of the valve is further affected.
Disclosure of Invention
The utility model aims to solve the technical problems, and provides a bidirectional metal-compression sealing butterfly valve, which is used for reducing the abrasion of a sealing surface and improving the sealing effect of the butterfly valve.
In view of this, the present utility model provides a bi-directional metal seal butterfly valve, comprising:
the valve body is internally provided with a flow passage;
the butterfly plate is movably arranged in the valve body;
the valve rod is arranged on the valve body and used for driving the butterfly plate to move, and a valve rod driving part is arranged at the top of the valve rod;
further comprises:
the metal sealing piece is of a gamma-shaped metal sealing structure;
the valve body connected valve seat is formed by processing a body surfacing positive cone;
the valve body conjoined valve seat can be matched with the metal sealing element to form bidirectional sealing.
In the technical scheme, the metal sealing element with the 'gamma' -shaped metal sealing structure is matched with the valve body conjoined valve seat formed by processing the body overlaying positive cone, is suitable for bidirectional interception and regulation control of air, water, steam, various corrosive media, slurry, oil products, liquid nonmetal, radioactive media and other fluid flows, has small opening and closing resistance, reliably realizes that the butterfly valve positive and negative bidirectional pressure sealing meets the standard regulation requirement, and has cleaning function between the metal sealing ring with wiping performance and the valve body upper valve seat by the contact automatic anastomosis sealing action, so that particles, crystals, dirt, fibers and other impurities adhered on the sealing surface are scraped off very effectively.
In the technical scheme, further, the axis of the valve rod deviates from the center line of the valve body conjoined valve seat in the vertical direction, and the butterfly plate is a two-dimensional eccentric tortoiseshell type butterfly plate with the drift diameter more than or equal to 800.
In the above technical solution, further, the metal seal further includes:
the sealing ring is of a gamma shape, and can be subjected to surfacing welding STL or spray welding WC and nickel-based alloy;
the winding pad is high-temperature resistant, low-temperature resistant and corrosion resistant;
the adjusting sealing type pressing ring can be fixedly arranged on the butterfly plate through a circumferential screw;
the sealing ring is arranged along the circumference of the butterfly plate, the winding pad is arranged between the sealing ring and the butterfly plate, and the sealing ring is fixed on the butterfly plate through an adjusting sealing type pressing ring.
In the above technical solution, further, the adjusting sealing type pressing ring has a pressing ring outer circle for supporting the transverse extending end of the 'Γ' -shaped sealing ring.
In the above technical scheme, further, an internal pressure cavity is arranged between the sealing ring and the adjusting sealing type pressing ring.
The beneficial effects of the utility model are as follows:
1. the metal sealing element with the 'gamma' -shaped metal sealing structure is matched with the valve body conjoined valve seat formed by processing the body surfacing positive cone, so that the sealing performance of the butterfly valve is effectively improved;
2. by adopting the two-dimensional eccentric tightening principle, the abrasion of the metal sealing piece in the using process is reduced, and the sealing effect of the butterfly plate is improved;
3. when the valve is used for a long time, the valve seat or the butterfly plate sealing ring of the valve body is worn, the sealing ring can be adjusted or replaced, meanwhile, the metal sealing piece with the same specification can realize unified allocation, tool guarantee is not needed during processing, boring is not needed during through shaft holes, and the body and the plate workpieces can be independently processed and completed in a single piece, so that the tool cost is saved, the production and processing difficulty is reduced, the production efficiency is improved, the maintenance and the maintenance are convenient, and the resources are saved;
4. the butterfly valve adopts an all-welded or flange connection mode, the structure is compact, the small eccentric design enables the opening and closing moment to be small, the 'gamma' -shaped sealing ring has elasticity, and the butterfly valve can be installed on a pipe network at will through the radial dynamic balance sealing principle.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural diagram of an embodiment of the present utility model.
FIG. 2 is a schematic vertical sectional view of the valve body of the present utility model.
FIG. 3 is a schematic view of the metal seal structure of the present utility model.
FIG. 4 is a schematic view of a horizontal cross-sectional view of a valve body according to the present utility model.
Fig. 5 is a partially enlarged view of the structure of fig. 4A according to the present utility model.
The label in the figure is:
the valve comprises a 1-valve body, a 100-runner, a 2-butterfly plate, a 3-valve rod, a 4-valve rod driving part, a 5-metal sealing piece, a 50-sealing ring, a 51-winding pad, a 52-adjusting sealing type pressing ring, a 520-pressing plate ring excircle, a 53-ring Zhou Luoding, a 54-internal pressure cavity and a 6-valve body conjoined valve seat.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Example 1:
the embodiment of the application provides a two-way metal seal butterfly valve that presses, include: a valve body 1, wherein a flow passage 100 is arranged in the valve body 1; the butterfly plate 2 is movably arranged in the valve body 1; the valve rod 3 is arranged on the valve body 1 and used for driving the butterfly 2 plate to move, and a valve rod driving part 4 is arranged at the top of the valve rod 3;
further comprises: the metal seal piece 5 is of a gamma-shaped metal seal structure; the valve body conjoined valve seat 6 is formed by processing a body surfacing positive cone;
wherein, the metal seal piece 5 sets up along the circumference of butterfly plate 2, and valve body disjunctor disk seat 6 can cooperate with metal seal piece 5 to form two-way seal.
Moreover, the valve body is a flange valve body or a butt welding valve body, the sealing surface of the valve body conjoined valve seat 6 can be arbitrarily selected to be in surfacing or spray welding with sealing surface materials 13Cr/STL/WC, the working temperature range of the butterfly valve is low temperature-196 ℃, high temperature +650 ℃, the pressure range is PN0.25 MPa-PN10.0 MPa, and the passthrough range is DN 80-DN 4000.
In the embodiment, the metal sealing element 5 with a 'gamma' -shaped metal sealing structure is matched with the valve body conjoined valve seat 6 formed by processing the body overlaying positive cone, and the butterfly valve is suitable for bidirectional interception and regulation control of air, water, steam, various corrosive media, slurry, oil products, liquid non-metal, radioactive media and other fluid circulation, the opening and closing resistance of the butterfly plate 2 is small, the butterfly valve positive and negative bidirectional pressure sealing is reliably realized to meet the standard regulation requirement, and the metal sealing ring 50 with wiping performance in the movement of the butterfly plate 2 and the valve seat on the valve body have cleaning action, so that the butterfly valve effectively scrapes off particles, crystals, dirt, fibers and other impurities adhered on the sealing surface.
Example 2:
the embodiment provides a two-way metal seal butterfly valve, which comprises the technical scheme of the embodiment and the following technical characteristics, wherein the axial lead of a valve rod 3 deviates from the central line of a valve body conjoined valve seat 6 in the vertical direction, and a butterfly plate 2 is a two-dimensional eccentric tortoiseshell type butterfly plate with the drift diameter more than or equal to 800.
In the embodiment, the sealing surface of the butterfly plate 2 is displaced along with the two-dimensional eccentricity by utilizing the two-dimensional eccentric tightening principle during valve closing, and is pressed to the sealing surface of the valve body conjoined valve seat 6 only at the last moment to form a micro elastic principle, so that the butterfly plate can be forcedly sealed, and the gamma-shaped metal sealing structure of the metal sealing piece 5 on the butterfly plate 2 is not contacted with the sealing surface of the valve body conjoined valve seat 6 in the closing or opening process, thereby eliminating the mutual friction between the sealing surfaces of the butterfly valve in the opening and closing processes, and preventing the phenomenon that the sealing surface is worn to influence the sealing effect due to frequent opening and closing of the butterfly valve.
Example 3:
the present embodiment provides a two-way metal seal butterfly valve, which has the following technical features in addition to the technical scheme including the above embodiment, and the metal seal 5 further includes: the sealing ring 50, the sealing ring 50 is 'gamma' -shaped, the sealing ring 50 can be subjected to surfacing welding STL or spray welding WC and nickel-based alloy; a winding pad 51, the winding pad 51 being a high temperature, low temperature and corrosion resistant winding pad; an adjusting seal type pressing ring 52, wherein the adjusting seal type pressing ring 52 can be fixedly arranged on the butterfly plate 2 through a ring Zhou Luoding 53, and the adjusting seal type pressing ring 52 is provided with a pressing plate ring outer circle 520 for supporting the transverse extending end of the inverted L-shaped sealing ring 50; an internal pressure cavity 54, the internal pressure cavity 54 being located between the seal ring 50 and the adjustment seal type press ring 52;
wherein, sealing washer 50 sets up along the circumference of butterfly plate 2, and winding pad 51 sets up between sealing washer 50 and butterfly plate 2, and sealing washer 50 is fixed on butterfly plate 2 through adjusting sealed clamping ring 52.
Moreover, the valve body conjoined valve seat 6 does not need a slope plate tool, the single body independently and uniformly processes the sizes of all parts, the butterfly plate 2 is manufactured and finished through a single piece of production line, and the valve body conjoined valve seat 6 is provided with a tight sealing section distance with a certain width size.
In this embodiment, valve body disjunctor disk seat 6, butterfly plate 2 and sealing washer 50 are convenient for production line operation, possess spare part interchangeability completely, make things convenient for this product spare part of same model specification to realize exchanging, manpower, material resources cost has been reduced, support sealing washer 50 internal diameter through clamp plate circle excircle 520, with reduce the compressive deformation, guarantee sealing washer 50 elastic effect, through setting up interior pressure cavity 54, interior pressure cavity 54 receives the outside tensile effort that the medium produced can assist sealing and then improve sealed effect, ring Zhou Luoding fastening sealing washer 50 can increase butterfly plate 2 bulk strength, sealing washer 50 cooperates and passes through tight seal section distance realization and closes more tightly more with valve body disjunctor disk seat 6, ensure two-way sealing function.
The embodiments of the present application and the features of the embodiments may be combined without conflict, and the present application is not limited to the specific embodiments described above, which are merely illustrative, not restrictive, and many forms may be made by those of ordinary skill in the art, without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (5)
1. A bi-directional metal seal butterfly valve comprising:
the valve comprises a valve body (1), wherein a flow passage (100) is arranged in the valve body (1);
the butterfly plate (2) is movably arranged in the valve body (1);
the valve rod (3), the valve rod (3) is arranged on the valve body (1) and used for driving the butterfly plate (2) to move, and a valve rod driving part (4) is arranged at the top of the valve rod (3);
characterized by further comprising:
a metal seal (5), wherein the metal seal (5) is of a 'gamma' -shaped metal seal structure;
the valve body connected valve seat (6), the valve body connected valve seat (6) is formed by processing a body build-up welding positive cone;
the metal sealing piece (5) is arranged along the circumferential direction of the butterfly plate (2), and the valve body conjoined valve seat (6) can be matched with the metal sealing piece (5) to form bidirectional sealing.
2. The bi-directional metal seal butterfly valve of claim 1, wherein: the axial lead of the valve rod (3) deviates from the central line of the valve body conjoined valve seat (6) in the vertical direction, and the butterfly plate (2) is a two-dimensional eccentric tortoiseshell type butterfly plate with the drift diameter more than or equal to 800.
3. A bi-directional metal seal butterfly valve according to claim 2, wherein said metal seal (5) further comprises:
the sealing ring (50), the sealing ring (50) is 'gamma' -shaped, the sealing ring (50) can be subjected to surfacing STL or spray welding WC and nickel-based alloy;
a winding pad (51), wherein the winding pad (51) is a high-temperature, low-temperature and corrosion-resistant winding pad;
an adjusting sealing type pressing ring (52), wherein the adjusting sealing type pressing ring (52) can be fixedly arranged on the butterfly plate (2) through a ring Zhou Luoding (53);
the butterfly plate comprises a butterfly plate (2), a sealing ring (50) and a winding pad (51), wherein the sealing ring (50) is arranged along the circumference of the butterfly plate (2), the winding pad (51) is arranged between the sealing ring (50) and the butterfly plate (2), and the sealing ring (50) is fixed on the butterfly plate (2) through an adjusting sealing type pressing ring (52).
4. A bi-directional metal seal butterfly valve according to claim 3, wherein: the adjustable seal clamp ring (52) has a clamp ring outer circumference (520) for supporting the laterally extending ends of the "Γ" seal ring (50).
5. A bi-directional metal seal butterfly valve according to claim 3, wherein: an internal pressure cavity (54) is arranged between the sealing ring (50) and the adjusting sealing type pressing ring (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321868423.6U CN220302775U (en) | 2023-07-17 | 2023-07-17 | Bidirectional metal-pressing sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321868423.6U CN220302775U (en) | 2023-07-17 | 2023-07-17 | Bidirectional metal-pressing sealing butterfly valve |
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| Publication Number | Publication Date |
|---|---|
| CN220302775U true CN220302775U (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321868423.6U Active CN220302775U (en) | 2023-07-17 | 2023-07-17 | Bidirectional metal-pressing sealing butterfly valve |
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| CN (1) | CN220302775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906597A (en) * | 2023-07-17 | 2023-10-20 | 云和县金立铸件有限公司 | Bidirectional metal-pressing sealing butterfly valve and use method thereof |
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2023
- 2023-07-17 CN CN202321868423.6U patent/CN220302775U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906597A (en) * | 2023-07-17 | 2023-10-20 | 云和县金立铸件有限公司 | Bidirectional metal-pressing sealing butterfly valve and use method thereof |
| CN116906597B (en) * | 2023-07-17 | 2024-08-09 | 云和县金立铸件有限公司 | Bidirectional metal-pressing sealing butterfly valve and use method thereof |
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