CN215059565U - Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat - Google Patents

Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat Download PDF

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Publication number
CN215059565U
CN215059565U CN202122633929.6U CN202122633929U CN215059565U CN 215059565 U CN215059565 U CN 215059565U CN 202122633929 U CN202122633929 U CN 202122633929U CN 215059565 U CN215059565 U CN 215059565U
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China
Prior art keywords
valve
valve body
butterfly plate
disk seat
butterfly
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CN202122633929.6U
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Chinese (zh)
Inventor
李阳光
胡旭
王永山
姜健
秦勇
晏宇
崔硕
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Shenyang Valve Co ltd
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Shenyang Valve Co ltd
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Priority to CN202122633929.6U priority Critical patent/CN215059565U/en
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Abstract

The utility model relates to the technical field of valves, a two-way five eccentric sphere hard seal butterfly valve that disk seat can float is provided very much, including valve body, valve rod, butterfly plate and disk seat, the valve rod pass the butterfly plate and with butterfly plate fixed connection, the both ends of valve rod are connected with the valve body rotation, at the valve body inner wall, with the outer position along the butt joint in butterfly plate right side, the axial can float ground and set up the disk seat, the butt is sealed with the butterfly plate to the disk seat. In this is novel, the disk seat sets up to floatable, and when the medium reverse flow, under the impact force of medium, the butterfly plate can drive the disk seat and have a little displacement to can realize better cooperation between butterfly plate and disk seat, the valve body, avoid taking place the dislocation.

Description

Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat
Technical Field
The utility model relates to the technical field of valves, a two-way five eccentric sphere hard seal butterfly valve that disk seat can float is provided very much.
Background
The butterfly valve is a regulating valve with simple structure, and is a valve which is opened and closed by the rotation of a butterfly plate around a valve rod. Can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling.
In the existing butterfly valve, an independent valve seat is not arranged, the valve seat and the valve body are integrally arranged, the unidirectional flow of a medium can be realized, and the function is limited.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two-way five eccentric sphere hard seal butterfly valve that disk seat can float.
The utility model discloses a realize like this, provide a two-way five eccentric sphere hard seal butterfly valve that disk seat can float, including valve body, valve rod, butterfly plate and disk seat, the valve rod pass the butterfly plate and with butterfly plate fixed connection, the both ends of valve rod are connected with the valve body rotation, at the valve body inner wall, with the outer position along the butt joint in butterfly plate right side, the axial can float ground and set up the disk seat, the sealed butt of disk seat and butterfly plate.
Preferably, the inner wall of the valve body on the right side of the valve rod is provided with a circle of baffle ring, the valve seat is arranged between the valve rod and the baffle ring, and a plurality of sealing rings are arranged between the valve seat and the inner wall of the valve body.
Further preferably, a butterfly plate sealing ring is arranged at the position, contacted with the valve seat, of the outer edge on the right side of the butterfly plate, and the butterfly plate sealing ring is fixed on the butterfly plate through a pressing ring.
Further preferably, one surface of the valve seat close to the butterfly plate is a spherical surface, and the radius of the spherical surface is 160 mm.
Further preferably, a valve cover is detachably arranged at the lower end of the valve body, and a gasket is arranged between the valve cover and the valve body.
Further preferably, the valve gap with between the valve body, the joint is equipped with to the ring, and be equipped with the annular groove on the valve rod, stretch into the annular groove of valve rod to the one side that the valve body was kept away from to the ring.
Further preferably, an upper bushing is arranged at the position where the upper end of the valve rod is rotatably connected with the valve body, and a lower bushing is arranged at the position where the lower end of the valve rod is rotatably connected with the valve body.
Further preferably, the valve further comprises a packing assembly, the packing assembly comprises a packing pad, packing and a packing gland, the packing pad is arranged below the packing, the packing pad and the packing are arranged between the valve rod and the valve body, one end of the packing gland is pressed at the upper end of the packing, and the other end of the packing gland is fixed on the valve body.
Further preferably, still include drive assembly, drive assembly includes motor and motor support, and motor support sets up the valve body upper end, the motor is installed in motor support upper end, the output of motor with the valve rod passes through the key-type connection.
Compared with the prior art, the utility model has the advantages of:
1. the valve seat is arranged to be floatable, and when a medium flows reversely, the butterfly plate can drive the valve seat to have small displacement under the impact force of the medium, so that the butterfly plate can be better matched with the valve seat and the valve body, and dislocation is avoided;
2. due to the arrangement of the floatable valve seat, the novel butterfly valve can realize the bidirectional flow of media, and the function of the butterfly valve is expanded;
3. the valve seat is set to be a spherical surface, and the sealing between the valve seat and the butterfly plate is more reliable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
FIG. 1 is a schematic side view of the cross-sectional structure of the present invention;
fig. 2 is a schematic view of the structure of the present invention;
FIG. 3 is a connection structure diagram of a valve body and a butterfly plate;
fig. 4 is an enlarged view of the position a in fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the utility model provides a two-way five eccentric sphere hard seal butterfly valve that disk seat can float, including valve body 5, valve rod 6, butterfly plate 7 and disk seat 20, valve rod 6 pass butterfly plate 7 and with butterfly plate 7 fixed connection, the both ends of valve rod 6 rotate with valve body 5 to be connected, at the valve body 5 inner wall, with the position of 7 right sides outer edge butt joints of butterfly plate, the axial can float ground and set up disk seat 20, disk seat 20 and 7 sealed butts of butterfly plate. The butterfly plate 7 is fixedly connected with the valve rod 6 through a pin 23.
In the technical scheme, the front, back, left, right, upper and lower are all based on the figure 1.
In the process of using this butterfly valve, with the welding of valve body 5 on the medium pipeline, when the medium flows from a left side to the right side, valve rod 6 control butterfly plate 7 normally open can, when the medium flows from a right side to the left side, the medium at first can promote butterfly plate 7, valve rod 6 has a trend left, because butterfly plate 7 and disk seat 20 friction seal butt, butterfly plate 7 drives disk seat 20 and has a small displacement, thereby can not take place the dislocation between messenger butterfly plate 7 and the disk seat 20, can normally open butterfly plate 7.
As a floating arrangement, a ring of baffle ring 25 is arranged on the inner wall of the valve body 5 on the right side of the valve rod 6, the valve seat 20 is arranged between the valve rod 6 and the baffle ring 25, and a plurality of sealing rings 19 are arranged between the valve seat 20 and the inner wall of the valve body 5.
The position of the right side of the valve seat 20 is limited by the baffle ring 25, and the sealing action between the valve seat 20 and the valve body 5 is realized by the sealing ring 19.
In order to increase the sealing performance between the butterfly plate 7 and the valve seat 20, as an improvement of the technical solution, a butterfly plate sealing ring 26 is arranged at a position where an outer edge of the right side of the butterfly plate 7 contacts the valve seat 20, and the butterfly plate sealing ring 26 is fixed on the butterfly plate 7 through a pressing ring 27.
The butterfly plate sealing ring 26 is flexibly arranged and can be extruded and deformed during sealing, so that the height of the butterfly plate sealing ring 26 is slightly higher than that of the pressing ring 27 and the butterfly plate 7 on both sides.
In order to further increase the sealing performance between the valve seat 20 and the butterfly plate 7, one surface of the valve seat 20 close to the butterfly plate 7 is a spherical surface, and the radius of the spherical surface is 160 mm.
In order to facilitate installation and sealing, a valve cover 1 is detachably arranged at the lower end of the valve body 5, and a gasket 2 is arranged between the valve cover 1 and the valve body 5. The valve cover 1 is connected with the valve body 5 through a valve cover fixing bolt 24.
In order to prevent the valve rod 6 from being separated from the lower end of the valve body 5 in the rotating process, as an improvement of the technical scheme, a split ring 3 is clamped between the valve cover 1 and the valve body 5, an annular groove is formed in the valve rod 6, and one side, far away from the valve body 5, of the split ring 3 extends into the annular groove of the valve rod 6.
An upper bushing 8 is arranged at the position where the upper end of the valve rod 6 is rotatably connected with the valve body 5, and a lower bushing 4 is arranged at the position where the lower end of the valve rod 6 is rotatably connected with the valve body 5. The lower bushing 4 and the upper bushing 8 rub the valve rod 6 in the rotating process of the valve rod 6, and the service life of the valve body 5 is prolonged.
For further sealing, as an improvement, the valve further comprises a packing assembly, wherein the packing assembly comprises a packing pad 9, a packing 10 and a packing gland 16, the packing pad 9 is arranged below the packing 10, the packing pad 9 and the packing 10 are arranged between the valve rod 6 and the valve body 5, one end of the packing gland 16 is pressed at the upper end of the packing 10, and the other end of the packing gland is fixed on the valve body 5.
The packing gland 16 is fixed on the valve body 5 by a gland fixing screw 17 and a gland fixing nut 18.
In order to drive the valve rod 6 to rotate, as an improvement, the valve further comprises a driving assembly, the driving assembly comprises a motor 13 and a motor support 15, the motor support 15 is arranged at the upper end of the valve body 5, the motor 13 is arranged at the upper end of the motor support 15, and the output end of the motor 13 is connected with the valve rod 6 through a key 14.
The motor 13 is fixedly connected with the motor frame 15 through a motor fixing screw 21 and a motor fixing nut 22, and the motor frame 15 is fixed on the valve body 5 through a frame fixing screw 12 and a frame fixing nut 11.
In this novel, decentration in the unbiased a, decentration b, decentration c are the three decentration settings of conventional butterfly valve, wherein decentration c is 7, and decentration d is the angle between sealed face cone angle and centrum central line, is 10, and fifth decentration r is the radius of disk seat 20.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (9)

1. Two-way five eccentric sphere hard seal butterfly valve that disk seat can float, a serial communication port, including valve body (5), valve rod (6), butterfly plate (7) and disk seat (20), valve rod (6) pass butterfly plate (7) and with butterfly plate (7) fixed connection, the both ends and valve body (5) rotation of valve rod (6) are connected, at valve body (5) inner wall, with the position of butterfly plate (7) right side outer edge butt joint, but axial floatably sets up disk seat (20), disk seat (20) and butterfly plate (7) sealed butt.
2. The disk seat floatable two-way five eccentric spherical hard seal butterfly valve according to claim 1, characterized in that a ring of baffle ring (25) is arranged on the inner wall of the valve body (5) on the right side of the valve rod (6), the disk seat (20) is arranged between the valve rod (6) and the baffle ring (25), and a plurality of sealing rings (19) are arranged between the disk seat (20) and the inner wall of the valve body (5).
3. The two-way five-eccentric spherical hard seal butterfly valve with the floatable valve seat according to claim 2, characterized in that a butterfly plate sealing ring (26) is arranged at the position, contacting with the valve seat (20), of the outer edge of the right side of the butterfly plate (7), and the butterfly plate sealing ring (26) is fixed on the butterfly plate (7) through a pressing ring (27).
4. The seat-floatable two-way five-eccentric-spherical hard seal butterfly valve according to claim 1, characterized in that the face of the valve seat (20) close to the butterfly plate (7) is spherical with a radius of 160 mm.
5. The disk seat floatable two-way five eccentric spherical hard seal butterfly valve according to claim 1, characterized in that a valve cover (1) is detachably provided at the lower end of the valve body (5), and a gasket (2) is provided between the valve cover (1) and the valve body (5).
6. The two-way five-eccentric spherical hard sealing butterfly valve with the floatable valve seat according to claim 5, characterized in that a split ring (3) is clamped between the valve cover (1) and the valve body (5), an annular groove is formed in the valve rod (6), and one side of the split ring (3) far away from the valve body (5) extends into the annular groove of the valve rod (6).
7. The disk seat floatable two-way five eccentric spherical hard seal butterfly valve according to claim 1, characterized in that an upper bushing (8) is provided at a position where the upper end of the valve rod (6) is rotatably connected with the valve body (5), and a lower bushing (4) is provided at a position where the lower end of the valve rod (6) is rotatably connected with the valve body (5).
8. The two-way five-eccentric-center spherical hard-seal butterfly valve with the floatable valve seat according to claim 1, characterized by further comprising a packing assembly, wherein the packing assembly comprises a packing pad (9), a packing (10) and a packing gland (16), the packing pad (9) is arranged below the packing (10), the packing pad (9) and the packing (10) are arranged between the valve rod (6) and the valve body (5), one end of the packing gland (16) is arranged at the upper end of the packing (10) in a pressing mode, and the other end of the packing gland is fixed on the valve body (5).
9. The bidirectional five-eccentric spherical hard seal butterfly valve with the floatable valve seat according to claim 1, further comprising a driving assembly, wherein the driving assembly comprises a motor (13) and a motor support (15), the motor support (15) is arranged at the upper end of the valve body (5), the motor (13) is arranged at the upper end of the motor support (15), and the output end of the motor (13) is connected with the valve rod (6) through a key (14).
CN202122633929.6U 2021-11-01 2021-11-01 Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat Active CN215059565U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122633929.6U CN215059565U (en) 2021-11-01 2021-11-01 Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122633929.6U CN215059565U (en) 2021-11-01 2021-11-01 Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat

Publications (1)

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CN215059565U true CN215059565U (en) 2021-12-07

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CN202122633929.6U Active CN215059565U (en) 2021-11-01 2021-11-01 Bidirectional five-eccentric spherical surface hard sealing butterfly valve with floatable valve seat

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114413006A (en) * 2022-03-01 2022-04-29 北京瑞拓江南自控设备有限公司 Spherical bidirectional sealed four-eccentric butterfly valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114413006A (en) * 2022-03-01 2022-04-29 北京瑞拓江南自控设备有限公司 Spherical bidirectional sealed four-eccentric butterfly valve

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