CN112413146A - Floating valve seat bidirectional hard seal butterfly valve - Google Patents
Floating valve seat bidirectional hard seal butterfly valve Download PDFInfo
- Publication number
- CN112413146A CN112413146A CN202011397358.4A CN202011397358A CN112413146A CN 112413146 A CN112413146 A CN 112413146A CN 202011397358 A CN202011397358 A CN 202011397358A CN 112413146 A CN112413146 A CN 112413146A
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- China
- Prior art keywords
- valve
- floating
- seat
- sealing
- boss
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2268—Sealing means for the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a bidirectional hard sealing butterfly valve with a floating valve seat, which comprises a valve body, a valve shaft, a valve plate, the floating valve seat and a sealing pressure ring; the valve plate is arranged in a cavity of the valve body, the valve plate is rotatably connected with the valve body through a valve shaft, a positioning lug is arranged on the inner side wall of the valve body, a first boss and a second boss are arranged on one side, close to the valve plate, of the sealing press ring, the positioning lug is matched with the first boss and the second boss to form a positioning groove, the floating valve seat is arranged in the positioning groove in a matched mode, a first sealing ring is arranged at the connecting position of the floating valve seat and the sealing press ring, and a second sealing ring is arranged between the floating valve seat and the valve body; the valve plate and the contact surface of the floating valve seat matched with the valve plate are arranged in a spherical surface mode. The invention adopts the combination of the floating valve seat and the O-shaped sealing ring to assemble the whole body into the valve body, realizes the hard sealing contact between the floating valve seat and the valve plate to realize sealing, has good sealing effect, is suitable for the harsh working conditions of high temperature and wear resistance, and has long service life.
Description
Technical Field
The invention belongs to the field of valves, and particularly relates to a bidirectional hard sealing butterfly valve with a floating valve seat.
Background
The butterfly valve is a valve which rotates around a valve rod according to a butterfly plate to achieve opening and closing effects, the medium flow is adjusted by changing the angle of the butterfly plate, and the butterfly valve has the characteristics of simple structure, flexibility in operation, small opening and closing moment, good adjusting performance and the like, is widely applied to occasions for controlling the flow of various types of fluids such as water, slurry and the like, and is generally arranged in the diameter direction of a pipeline;
at present, the butterfly valve ubiquitous has the relatively poor disadvantage of sealing performance, adds materials such as sealing member between the edge of butterfly plate and valve body, though has increased sealed effect, nevertheless because the continuous rotation of butterfly plate, the sealing member is worn and torn constantly, and then leads to the problem of sealed effect variation.
Disclosure of Invention
In view of the above, the present invention is directed to a bidirectional hard seal butterfly valve with a floating valve seat, so as to solve the problem of poor sealing effect of the butterfly valve.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the bidirectional hard sealing butterfly valve with the floating valve seat comprises a valve body, a valve shaft, a valve plate, the floating valve seat and a sealing pressure ring; the valve plate is arranged in a cavity of the valve body, the valve plate is rotationally connected with the valve body through a valve shaft, a positioning lug is arranged on the inner side wall of the valve body, a first boss and a second boss are respectively arranged on one side, close to the valve plate, of the sealing pressing ring, the positioning lug is matched with the first boss and the second boss to form a positioning groove, the floating valve seat is arranged in the positioning groove in a matched mode, a first sealing ring is arranged at the connecting position of the floating valve seat and the sealing pressing ring, and a second sealing ring is arranged between the floating valve seat and the valve body;
the valve plate is the sphere with unsteady disk seat complex contact surface, the one side that unsteady disk seat is close to the valve plate is equipped with the arc concave surface that corresponds with the sphere.
Further, the valve shaft includes the valve shaft, be equipped with the axle sleeve between the surface of going up the valve shaft and the valve body, the upper end of going up the axle sleeve is equipped with the packing pad, the packing pad sets up between last valve shaft and valve body, the upper surface of packing pad is equipped with a plurality of third sealing washer, the top of third sealing washer is equipped with gland, gland passes through bolt and valve body fixed connection.
Furthermore, the valve shaft still includes lower valve shaft, the bottom of lower valve shaft still is equipped with the sealing washer end cap for to the sealed of lower valve shaft.
Furthermore, the first sealing ring, the second sealing ring and the third sealing ring are all O-shaped sealing rings.
Furthermore, a first groove is formed in the joint of the floating valve seat and the second boss, and the first groove is used for controllable elastic deformation of the floating valve seat;
a second groove is formed in the joint of the upper end of the floating valve seat and the valve body, and the second sealing ring is arranged in the second groove;
the joint of the floating valve seat and the sealing press ring forms a gap, and the first sealing ring is arranged in the gap.
Furthermore, the section of first recess and second recess sets up for the C type, first recess with the second recess is used for setting up first sealing washer and second sealing washer respectively.
Furthermore, the sealing press ring is fixedly connected with the valve body through a rubber pad.
Further, first boss sets up the tip at sealed clamping ring, the second boss sets up on the second boss, the height that highly is less than the second boss of first boss.
Furthermore, the inner side of the valve body is also provided with a limiting block for limiting the valve plate.
Furthermore, the floating valve seat is made of alloy steel.
Compared with the prior art, the bidirectional hard sealing butterfly valve with the floating valve seat has the following advantages:
(1) the floating valve seat bidirectional hard seal butterfly valve adopts the combination of the floating valve seat and the O-shaped seal ring, and the whole butterfly valve is assembled in the valve body, so that the floating valve seat is in hard seal contact with the valve plate to realize sealing, and the sealing effect is good;
(2) the floating valve seat of the bidirectional hard sealing butterfly valve with the floating valve seat adopts alloy steel to adapt to the harsh working conditions of high temperature and wear resistance, the wear resistance is improved, and the service life is long.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a floating valve seat bidirectional hard seal butterfly valve according to an embodiment of the invention;
FIG. 2 is a schematic view of a portion A of a floating seat two-way hard seal butterfly valve according to an embodiment of the present invention;
FIG. 3 is a right side view of a floating seat two-way hard seal butterfly valve according to an embodiment of the invention.
Description of reference numerals:
1-a valve body; 101-positioning bumps; 102-a stopper; 2-a valve plate; 3-a valve shaft; 303-an upper shaft sleeve; 4-sealing the pressure ring; 401 — a first boss; 402-a second boss; 5-a floating valve seat; 501-a first groove; 502-a second groove; 6-a filler pad; 7-a packing gland; 8-a first sealing ring; 9-a second sealing ring; 10-a third seal ring; 11-sealing ring plug.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, the floating valve seat bidirectional hard seal butterfly valve comprises a valve body 1, a valve shaft 3, a valve plate 2, a floating valve seat 5 and a seal compression ring 4; the valve plate 2 is arranged in a cavity of the valve body 1, the valve plate 2 is rotatably connected with the valve body 1 through a valve shaft 3, a positioning lug 101 is arranged on the inner side wall of the valve body 1, a first boss 401 and a second boss 402 are respectively arranged on one side, close to the valve plate 2, of the sealing press ring 4, the positioning lug 101 is matched with the first boss 401 and the second boss 402 to form a positioning groove, the floating valve seat 5 is arranged in the positioning groove in a matched mode, a first sealing ring 8 is arranged at the connecting position of the floating valve seat 5 and the sealing press ring 4, and a second sealing ring 9 is arranged between the floating valve seat 5 and the valve body 1;
the valve plate 2 is the sphere with 5 complex contact surfaces of unsteady disk seat, unsteady disk seat 5 is close to one side of valve plate 2 and is equipped with the arc concave surface that corresponds with the sphere.
The valve shaft 3 comprises an upper valve shaft, an upper shaft sleeve 303 is arranged between the outer surface of the upper valve shaft and the valve body 1, a packing gasket 6 is arranged at the upper end of the upper shaft sleeve 303, the packing gasket 6 is arranged between the upper valve shaft and the valve body 1, a plurality of third sealing rings 10 are arranged on the upper surface of the packing gasket 6, a packing gland 7 is arranged above the third sealing rings 10, and the packing gland 7 is fixedly connected with the valve body 1 through bolts.
The valve shaft 3 further comprises a lower valve shaft, and a sealing ring plug 11 is further arranged at the bottom end of the lower valve shaft and used for sealing the lower valve shaft.
The first sealing ring 8, the second sealing ring 9 and the third sealing ring 10 are all O-shaped sealing rings.
A first groove 501 is formed at the joint of the floating valve seat 5 and the second boss 402, the first groove 501 is used for controllable elastic deformation of the floating valve seat 5, and the floating valve seat 5 is in hard sealing contact with the valve plate 2 to realize sealing;
a second groove 502 is formed in the joint of the upper end of the floating valve seat 5 and the valve body 1, the second sealing ring 9 is arranged in the second groove 502, the floating valve seat 5 and the second sealing ring 9 are integrally matched, sliding in a gap is achieved under the condition of water pressure pushing, and forward and reverse sealing is guaranteed;
the junction of the floating valve seat 5 and the sealing press ring 4 forms a gap, the first sealing ring 8 is arranged in the gap, the floating valve seat 5 is matched with the first sealing ring 8 to provide thrust of the floating valve seat 5, and meanwhile sealing is achieved under the guarantee of the elastic pressing amount.
The cross section of the first groove 501 and the second groove 502 is arranged in a C shape, and the first groove 501 and the second groove 502 are respectively used for arranging a first sealing ring 8 and a second sealing ring 9.
The sealing compression ring 4 is fixedly connected with the valve body 1 through a rubber pad, and the rubber pad is fastened in an interference manner through physical extrusion.
The first boss 401 is arranged at the end of the sealing press ring 4, the second boss 402 is arranged on the second boss 402, and the height of the first boss 401 is smaller than that of the second boss 402.
The inner side of the valve body 1 is also provided with a limiting block 102 for limiting the valve plate 2.
The floating valve seat 5 is made of alloy steel, and the floating valve seat 5 has the outstanding characteristics of wear resistance, high temperature resistance and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. Two-way hard seal butterfly valve of disk seat floats, its characterized in that: the valve comprises a valve body (1), a valve shaft (3), a valve plate (2), a floating valve seat (5) and a sealing press ring (4); the valve plate (2) is arranged in a cavity of the valve body (1), the valve plate (2) is rotatably connected with the valve body (1) through a valve shaft (3), a positioning lug (101) is arranged on the inner side wall of the valve body (1), a first boss (401) and a second boss (402) are respectively arranged on one side, close to the valve plate (2), of the sealing press ring (4), the positioning lug (101) is matched with the first boss (401) and the second boss (402) to form a positioning groove, the floating valve seat (5) is arranged in the positioning groove in a matched mode, a first sealing ring (8) is arranged at the joint of the floating valve seat (5) and the sealing press ring (4), and a second sealing ring (9) is arranged between the floating valve seat (5) and the valve body (1);
valve plate (2) and unsteady disk seat (5) complex contact surface are the sphere, one side that unsteady disk seat (5) are close to valve plate (2) is equipped with the arc concave surface that corresponds with the sphere.
2. The floating seat two-way hard seal butterfly valve of claim 1, wherein: the valve shaft (3) comprises an upper valve shaft, an upper shaft sleeve (303) is arranged between the outer surface of the upper valve shaft and the valve body (1), a packing gasket (6) is arranged at the upper end of the upper shaft sleeve (303), the packing gasket (6) is arranged between the upper valve shaft and the valve body (1), a plurality of third sealing rings (10) are arranged on the upper surface of the packing gasket (6), a packing gland (7) is arranged above the third sealing rings (10), and the packing gland (7) is fixedly connected with the valve body (1) through bolts.
3. The floating seat two-way hard seal butterfly valve of claim 2, wherein: the valve shaft (3) further comprises a lower valve shaft, and a sealing ring plug (11) is further arranged at the bottom end of the lower valve shaft and used for sealing the lower valve shaft.
4. The floating seat two-way hard seal butterfly valve of claim 2, wherein: the first sealing ring (8), the second sealing ring (9) and the third sealing ring (10) are all O-shaped sealing rings.
5. The floating seat two-way hard seal butterfly valve of claim 1, wherein: a first groove (501) is formed in the joint of the floating valve seat (5) and the second boss (402), and the first groove (501) is used for controllable elastic deformation of the floating valve seat (5);
a second groove (502) is formed in the joint of the upper end of the floating valve seat (5) and the valve body (1), and the second sealing ring (9) is arranged in the second groove (502);
the joint of the floating valve seat (5) and the sealing press ring (4) forms a gap, and the first sealing ring (8) is arranged in the gap.
6. The floating seat two-way hard seal butterfly valve of claim 5, wherein: the cross section of the first groove (501) and the cross section of the second groove (502) are arranged in a C shape, and the first groove (501) and the second groove (502) are respectively used for arranging a first sealing ring (8) and a second sealing ring (9).
7. The floating seat two-way hard seal butterfly valve of claim 1, wherein: the sealing press ring (4) is fixedly connected with the valve body (1) through a rubber pad.
8. The floating seat two-way hard seal butterfly valve of claim 1, wherein: the first boss (401) is arranged at the end part of the sealing press ring (4), the second boss (402) is arranged on the second boss (402), and the height of the first boss (401) is smaller than that of the second boss (402).
9. The floating seat two-way hard seal butterfly valve of claim 1, wherein: the inner side of the valve body (1) is also provided with a limiting block (102) for limiting the valve plate (2).
10. The floating seat two-way hard seal butterfly valve of claim 1, wherein: the floating valve seat (5) is made of alloy steel and is a floating valve seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011397358.4A CN112413146A (en) | 2020-12-03 | 2020-12-03 | Floating valve seat bidirectional hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011397358.4A CN112413146A (en) | 2020-12-03 | 2020-12-03 | Floating valve seat bidirectional hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112413146A true CN112413146A (en) | 2021-02-26 |
Family
ID=74829779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011397358.4A Pending CN112413146A (en) | 2020-12-03 | 2020-12-03 | Floating valve seat bidirectional hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112413146A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321430A (en) * | 2021-12-31 | 2022-04-12 | 湖南泵阀制造有限公司 | Bidirectional hard sealing rotary ball valve |
-
2020
- 2020-12-03 CN CN202011397358.4A patent/CN112413146A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321430A (en) * | 2021-12-31 | 2022-04-12 | 湖南泵阀制造有限公司 | Bidirectional hard sealing rotary ball valve |
| CN114321430B (en) * | 2021-12-31 | 2024-03-12 | 湖南泵阀制造有限公司 | Bidirectional hard sealing rotary ball valve |
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