CN210290783U - High-pressure-difference double-plate double-seat eccentric butterfly valve - Google Patents

High-pressure-difference double-plate double-seat eccentric butterfly valve Download PDF

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Publication number
CN210290783U
CN210290783U CN201920855230.4U CN201920855230U CN210290783U CN 210290783 U CN210290783 U CN 210290783U CN 201920855230 U CN201920855230 U CN 201920855230U CN 210290783 U CN210290783 U CN 210290783U
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China
Prior art keywords
valve
plate
double
seat
rod
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Active
Application number
CN201920855230.4U
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Chinese (zh)
Inventor
宋尚
丁桂花
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Wuxi Swater Fluid Control Technology Co ltd
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Wuxi Swater Fluid Control Technology Co ltd
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Priority to CN201920855230.4U priority Critical patent/CN210290783U/en
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Abstract

The utility model discloses a high pressure difference double-plate double-seat eccentric butterfly valve, which comprises a valve body, a valve plate, a valve rod and a valve seat, wherein a transversely arranged valve port is arranged on the valve body, the valve plate is arranged in the valve port, the valve rod is rotatably arranged in a longitudinal hole of the valve body, the valve plate is provided with two valve plate surfaces, the valve plate is fixedly arranged with the valve rod through a pin, a valve body pressing ring is fixedly arranged in the valve port of the valve body through an inner hexagon bolt, the valve seat is fixedly arranged on the valve body pressing ring, the valve seat is provided with two, the two valve seats are symmetrically arranged, and the two; the utility model has the advantages of reasonable and simple structure, eccentric bivalve face uses, solves the unable difficult problem of adjusting of ball valve, satisfies the accurate regulation requirement of the little aperture of valve, has eliminated the heavy characteristics of ball valve for this bivalve double seat eccentric butterfly valve can use under the high pressure difference, and each part all carries out the modularization production, and on-the-spot free renewal part shortens maintenance cycle greatly, reduce cost, easy maintenance, simple.

Description

High-pressure-difference double-plate double-seat eccentric butterfly valve
Technical Field
The utility model relates to an eccentric butterfly valve, in particular to high pressure difference double plate double seat eccentric butterfly valve belongs to butterfly valve equipment technical field.
Background
The invention aims to overcome the defects of the existing products and provide an eccentric butterfly valve which can reduce the torque of the valve and increase the pressure difference of the valve.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a high pressure difference double plate double seat eccentric butterfly valve.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a high pressure difference double-plate double-seat eccentric butterfly valve, which comprises a valve body, a valve plate, a valve rod and a valve seat, wherein the valve body is provided with a transversely arranged valve port, the valve plate is arranged in the valve port, the valve rod is rotatably arranged in a longitudinal hole of the valve body, the valve plate is provided with two valve plate surfaces, the valve plate is fixedly arranged with the valve rod through a pin, a valve body clamping ring is fixedly arranged in the valve port of the valve body through an inner hexagon bolt, the valve seat is fixedly arranged on the valve body clamping ring, the valve seat is provided with two valve seats, the two valve seats are symmetrically arranged, the two valve seats are arranged corresponding to the two valve plate surfaces of the valve plate one by one, shaft sleeves are sleeved between the valve seat and the valve body and are close to the upper end and the lower end of the valve port, a packing gasket, and the top of the packing gland is provided with a packing pressure plate, and the bottom of the valve body is fixedly provided with a bottom cover.
As the utility model discloses a preferred technical scheme, one side fixed mounting that the valve body bottom is close to the valve rod has stop collar and semicircle ring, stop collar and semicircle ring all are provided with two, a side cover that the semicircle ring is close to the valve rod is established on the valve rod.
As an optimal technical scheme of the utility model, two the edge of valve plate is spherical sealed face, the sphere cooperation of disk seat and valve plate forms the sealed face of twice.
As an optimal technical scheme of the utility model, the bottom passes through hex bolts and valve body fixed mounting, it is fixed that clamp plate and valve body top pass through stud, fixed mounting has lock nut on the stud.
As an optimal technical scheme of the utility model, fixed mounting has the winding to fill up between bottom and the valve body.
The utility model provides a poor double plate double seat eccentric butterfly valve of high pressure. Compared with the prior art, the method has the following beneficial effects:
1. this high pressure difference double plate double seat eccentric butterfly valve, the valve plate through two valve faces of installation on the valve rod cooperates with the disk seat on the valve body valve port, and eccentric double valve face uses, solves the unable difficult problem of adjusting of ball valve, satisfies the accurate regulation requirement of the little aperture of valve, has eliminated the heavy characteristics of ball valve for this double plate double seat eccentric butterfly valve can use under the high pressure difference, and the practicality is stronger.
2. This high pressure difference double plate double seat eccentric butterfly valve, through hexagon socket head cap screw between bottom and the valve body fixed, it is fixed through the pin between valve body and the valve plate, through hexagon socket head cap screw between valve body clamping ring and the valve body fixed, and it is fixed with lock nut that double-end stud is passed through to packing clamp plate and valve body top, modular production is all carried out to each part, on-the-spot free replacement part, shorten maintenance cycle greatly, and therefore, the cost is reduced, like parts commonality is strong, can exchange completely, easy maintenance, simply, sealed effect and life have been strengthened.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments 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 view of the present invention;
fig. 2 is a schematic cross-sectional view of a-a of the present invention.
In the figure: 1. a valve body; 2. a valve plate; 3. a valve stem; 4. a valve seat; 5. a valve body pressing ring; 6. a shaft sleeve; 7. a padding liner; 8. a filler; 9. a packing gland; 10. a packing press plate; 11. a stud; 12. locking the nut; 13. a hexagon socket head cap screw; 14. a pin; 15. a limiting sleeve; 16. a semicircular ring; 17. a winding pad; 18. a bottom cover; 19. a hexagon bolt.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Examples
As shown in fig. 1-2, a high pressure difference double-plate double-seat eccentric butterfly valve comprises a valve body 1, a valve plate 2, a valve rod 3 and valve seats 4, wherein a transverse valve port is formed in the valve body 1, the valve plate 2 is arranged in the valve port, the valve rod 3 is rotatably mounted in a longitudinal hole of the valve body 1, the valve plate 2 is provided with two valve plate surfaces, the valve plate 2 is fixedly mounted with the valve rod 3 through a pin 14, a valve body pressing ring 5 is fixedly mounted in the valve port of the valve body 1 through an inner hexagon bolt 13, the valve seats 4 are fixedly mounted on the valve body pressing ring 5, two valve seats 4 are arranged, the two valve seats 4 are symmetrically arranged, the two valve seats 4 are arranged corresponding to the two valve plate surfaces of the valve plate 2 one by one, shaft sleeves 6 are sleeved at the upper and lower ends, close to the valve port, between the valve seats 4 and the valve, the packing gasket is characterized in that a packing 8 is installed in the valve body 1 at the top of the packing gasket 7, a packing gland 9 is installed at the top of the packing 8, a packing pressure plate 10 is installed at the top of the packing gland 9, and a bottom cover 18 is fixedly installed at the bottom of the valve body 1.
1 bottom of valve body is close to one side fixed mounting of valve rod 3 has stop collar 15 and semicircle ring 16, stop collar 15 and semicircle ring 16 all are provided with two, semicircle ring 16 is close to one side cover of valve rod 3 and establishes on valve rod 3, two the edge of valve plate 2 is spherical sealed face, the sphere cooperation of disk seat 4 and valve plate 2 forms the sealed face of twice, bottom 18 passes through hex bolts 19 and 1 fixed mounting of valve body, it is fixed that stud 11 is passed through at packing clamp plate 10 and 1 top of valve body, fixed mounting has lock nut 12 on stud 11, fixed mounting has winding pad 17 between bottom 18 and the valve body 1, improves the leakproofness between valve body 1 and the bottom 18.
The working principle is as follows: when the utility model is used, the upper end of the valve can be provided with an executing structure, the valve rod 3 is driven through the connection of the connecting bracket and the connecting shaft to rotate the valve plate 2, the two valve plate surfaces on the valve plate 2 and the two valve seats 4 form double sealing surfaces, thereby the functions of adjusting and cutting off media can be achieved under high pressure difference, when the valve plate 2 is opened by a small angle, the valve plate 2 can be separated from the valve seats 4, then no friction effect exists, the adjusting function can be achieved under small opening degree, namely, the valve plate 2 of the two valve plate surfaces arranged on the valve rod 3 is matched with the valve seats 4 on the valve port of the valve body 1, the eccentric double valve plate surfaces are used, the problem that the ball valve cannot be adjusted is solved, the requirement of accurately adjusting the small opening degree of the valve is met, the heavy characteristic of the ball valve is eliminated, the double-plate double-seat eccentric butterfly valve can be used under high pressure difference, the bottom, the valve body pressing ring 5 and the valve body 1 are fixed through the hexagon socket head cap screw 13, the packing pressing plate 10 and the top of the valve body 1 are fixed with the locking nut 12 through the stud 11, each part is produced in a modularization mode, parts can be freely replaced on site, the overhaul period is greatly shortened, the cost is reduced, the universality of similar parts is high, the parts can be completely interchanged, the maintenance is convenient and simple, and the sealing effect and the service life are enhanced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a high pressure difference double plate double seat eccentric butterfly valve which characterized in that: the valve comprises a valve body (1), a valve plate (2), a valve rod (3) and a valve seat (4), wherein a transverse valve port is formed in the valve body (1), the valve plate (2) is arranged in the valve port, the valve rod (3) is rotatably arranged in a longitudinal hole of the valve body (1), the valve plate (2) is provided with two valve plate surfaces, the valve plate (2) is fixedly arranged with the valve rod (3) through a pin (14), a valve body pressing ring (5) is fixedly arranged in the valve port of the valve body (1) through an inner hexagon bolt (13), the valve seat (4) is fixedly arranged on the valve body pressing ring (5), the two valve seats (4) are symmetrically arranged, the two valve seats (4) are arranged corresponding to the two valve plate surfaces of the valve plate (2), and shaft sleeves (6) are sleeved at the upper end and the lower end between the valve seat (4) and the valve body (1) and close to the, install packing pad (7) on axle sleeve (6) at disk seat (4) top, install filler (8) in valve body (1) at packing pad (7) top, gland (9) are installed at the top of filler (8), gland (10) are installed at the top of gland (9), the bottom fixed mounting of valve body (1) has bottom (18).
2. The high differential pressure double plate double seat eccentric butterfly valve of claim 1, wherein: one side fixed mounting that valve body (1) bottom is close to valve rod (3) has stop collar (15) and semicircle ring (16), stop collar (15) and semicircle ring (16) all are provided with two, one side cover that semicircle ring (16) are close to valve rod (3) is established on valve rod (3).
3. The high differential pressure double plate double seat eccentric butterfly valve of claim 1, wherein: the edges of the two valve plates (2) are spherical sealing surfaces, and the spherical surfaces of the valve seat (4) and the valve plates (2) are matched to form a double-channel sealing surface.
4. The high differential pressure double plate double seat eccentric butterfly valve of claim 1, wherein: the bottom cover (18) is fixedly installed with the valve body (1) through a hexagon bolt (19), the packing pressing plate (10) and the top of the valve body (1) are fixed through a stud (11), and a locking nut (12) is fixedly installed on the stud (11).
5. The high differential pressure double plate double seat eccentric butterfly valve of claim 1, wherein: and a winding pad (17) is fixedly arranged between the bottom cover (18) and the valve body (1).
CN201920855230.4U 2019-06-09 2019-06-09 High-pressure-difference double-plate double-seat eccentric butterfly valve Active CN210290783U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920855230.4U CN210290783U (en) 2019-06-09 2019-06-09 High-pressure-difference double-plate double-seat eccentric butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920855230.4U CN210290783U (en) 2019-06-09 2019-06-09 High-pressure-difference double-plate double-seat eccentric butterfly valve

Publications (1)

Publication Number Publication Date
CN210290783U true CN210290783U (en) 2020-04-10

Family

ID=70073000

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920855230.4U Active CN210290783U (en) 2019-06-09 2019-06-09 High-pressure-difference double-plate double-seat eccentric butterfly valve

Country Status (1)

Country Link
CN (1) CN210290783U (en)

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