CN212429766U

CN212429766U - Fluorine-lined butterfly valve

Info

Publication number: CN212429766U
Application number: CN202020542863.2U
Authority: CN
Inventors: 杨春雨
Original assignee: Shanghai Shengfan Fluid Control Co ltd
Current assignee: Shanghai Shengfan Fluid Control Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-01-29
Anticipated expiration: 2030-04-14

Abstract

The utility model provides a lining fluorine butterfly valve, including valve body, valve rod, butterfly plate, gland, the butterfly plate is fixed on the valve rod and be located inside the valve body, be equipped with the disk seat in the valve body, follow the butterfly plate is equipped with last uide bushing and the lower uide bushing that the symmetry set up, the lower extreme of disk seat is equipped with gasket, regulation hole, be equipped with adjusting nut in the regulation hole, the upper end of disk seat is equipped with uide ring and sliding ring, the gland with the sliding ring butt cooperation and with the disk seat adopts bolted connection, run through in proper order on the valve rod the uide ring, sliding ring with extend to behind the gland the top of gland. The utility model provides a lining fluorine butterfly valve has that the leakproofness is good, compact structure, characteristics small.

Description

Fluorine-lined butterfly valve

Technical Field

The utility model relates to the technical field of valves, specifically a lining fluorine butterfly valve.

Background

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 plays a role in cutting off and throttling on a pipeline. A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a valve clack or a butterfly plate of a closing member is a disk.

The fluorine-lined butterfly valve is a component for realizing the on-off and flow control of a pipeline system, and is widely applied in various fields of petroleum, chemical industry, metallurgy, water and electricity and the like. Fluorine-lined butterfly valves typically include a valve body, a valve seat, a butterfly plate, and a valve stem.

The butterfly valve is sealed usually to hug closely through the disk seat in butterfly plate and the valve body and form sealedly, receives the influence of the pressure of medium after using a period, and the lining is moulded the layer and is easily sent out plastic deformation with the disk seat, and because the valve rod passes disk seat and butterfly plate fixed connection respectively, leads to the junction of valve rod and valve body to take place to leak easily like this, has reduced the sealing performance of valve, has shortened the life of product, and current butterfly valve structure is more complicated simultaneously, weight is big, inconvenient operation.

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides a lining fluorine butterfly valve has that the leakproofness is good, compact structure, small characteristics.

The technical scheme of the utility model is realized like this:

the utility model provides a lining fluorine butterfly valve, includes valve body, valve rod, butterfly plate, gland, its characterized in that: the butterfly plate is fixed on the valve rod and is positioned inside the valve body, a valve seat is arranged in the valve body, the butterfly plate is provided with an upper guide sleeve and a lower guide sleeve which are symmetrically arranged, the upper guide sleeve is positioned at the upper end of the butterfly plate and is hinged with the valve rod at the upper end of the butterfly plate, the lower guide sleeve is positioned at the lower end of the butterfly plate and is hinged with the valve rod at the lower end of the butterfly plate, a gasket and an adjusting hole are arranged at the lower end inside the valve body, the gasket is positioned between the lower guide sleeve and the adjusting hole, an adjusting nut is arranged in the adjusting hole and is in butt fit with the gasket, a guide ring and a sliding ring are arranged at the upper end inside the valve body, the sliding ring is positioned above the guide ring, a gland is in butt fit with the sliding ring and is connected with the valve seat through a bolt, and the upper end of the valve rod sequentially penetrates, The sliding ring and the gland extend to the upper part of the gland.

The utility model discloses further set up to: the butterfly plate and the valve rod are integrally arranged.

The utility model discloses further set up to: the butterfly plate and the outer side of the valve rod are provided with sealing shells, and the sealing shells wrap the butterfly plate and the valve rod in the sealing shells.

The utility model discloses further set up to: and gaskets and rubber rings are arranged between the upper guide sleeve and the guide ring and between the lower guide sleeve and the gasket.

The utility model discloses further set up to: and a rubber ring gasket is arranged between the valve seat and the valve body.

The utility model discloses further set up to: the valve body comprises an upper valve body and a lower valve body, and the upper valve body is connected with the lower valve body through screws.

The utility model discloses further set up to: an O-shaped ring is arranged between the butterfly plate and the valve seat.

The utility model discloses further set up to: the valve seat is made of FEP materials.

To sum up, the beneficial effects of the utility model are that: the utility model provides a lining fluorine butterfly valve, valve body adopt seamless design, have that two-way seal is effectual, small, light in weight, compact structure's characteristics, and butterfly plate and valve rod an organic whole on it set up, have improved the stability of operation and the leakproofness of this butterfly valve, carry out the pretension through adjusting gland and adjusting nut on it, prevent that the medium from revealing on last valve body and the lower valve body to the life-span of extension valve.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the open structure of the present invention;

fig. 2 is a schematic structural diagram of the present invention when closed.

Reference numerals: 1. a valve body; 101. an upper valve body; 102. a lower valve body; 103. an adjustment hole; 2. a valve stem; 3. a butterfly plate; 301. sealing the housing; 4. a gland; 5. a screw; 6. a valve seat; 7. a rubber ring pad; 8. an O-shaped ring; 9. an upper guide sleeve; 10. a lower guide sleeve; 11. a gasket; 12. adjusting the nut; 13. a guide ring; 14. a sliding ring; 15. a bolt; 16. a gasket 17; a rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention is described below with reference to fig. 1-2:

the utility model provides a lining fluorine butterfly valve, including valve body 1, valve rod 2, butterfly plate 3, gland 4, valve body 1 includes that valve body 101 and lower valve body 102 constitute, go up and adopt screw 5 to connect between valve body 101 and the lower valve body 102, butterfly plate 3 sets up and lies in valve body 1 inside with valve rod 2 an organic whole, butterfly plate 3 is equipped with seal housing 301 with the valve rod 2 outside, seal housing 301 is equipped with the disk seat 6 that adopts FEP material to make in 1 valve body of butterfly plate 3 and valve rod 2 parcel in it 1, be equipped with rubber ring pad 7 between disk seat 6 and the valve body 1, be equipped with O type circle 8 between butterfly plate 3 and the disk seat 6.

An upper guide sleeve 9 and a lower guide sleeve 10 which are symmetrically arranged are arranged along the butterfly plate 3, the upper guide sleeve 9 is positioned on an upper valve body 101 above the butterfly plate 3 and is hinged with a valve rod 2 at the upper end of the butterfly plate 3, the lower guide sleeve 10 is positioned on a lower valve body 102 below the butterfly plate 3 and is hinged with the valve rod 2 at the lower end of the butterfly plate 3, a gasket 11 and an adjusting hole 103 are arranged on the lower valve seat 6, the gasket 11 is positioned between the lower guide sleeve 10 and the adjusting hole 103, an adjusting nut 12 is arranged in the adjusting hole 103, the adjusting nut 12 is in butt fit with the gasket 11,

be equipped with guide ring 13 and sliding ring 14 on going up disk seat 6, sliding ring 14 is located the top of guide ring 13, gland 4 and sliding ring 14 butt cooperation adopt bolt 15 to be connected with disk seat 6, extend to gland 4's top after guide ring 13, sliding ring 14 and gland 4 are run through in proper order to the upper end of valve rod 2, go up between uide bushing 9 and the guide ring 13, all be equipped with packing ring 16 and rubber circle 17 between lower uide bushing 10 and the gasket 11 and seal.

By adopting the technical scheme, the valve rod 2 is rotated to further control the opening and closing between the butterfly plate 3 and the valve seat 6, the adjusting nut 12 is screwed to perform pre-tightening, so that a medium is prevented from leaking from the lower valve body 102, the gland 4 is adjusted through the adjusting bolt 15, further pre-tightening of the guide ring 13 and the sliding ring 14 is realized, and the medium is prevented from leaking from the upper valve body 101.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lining fluorine butterfly valve, includes valve body (1), valve rod (2), butterfly plate (3), gland (4), its characterized in that: the butterfly plate (3) is fixed on the valve rod (2) and is positioned inside the valve body (1), a valve seat (6) is arranged in the valve body (1), an upper guide sleeve (9) and a lower guide sleeve (10) which are symmetrically arranged are arranged along the butterfly plate (3), the upper guide sleeve (9) is positioned at the upper end of the butterfly plate (3) and is hinged with the valve rod (2) at the upper end of the butterfly plate (3), the lower guide sleeve (10) is positioned at the lower end of the butterfly plate (3) and is hinged with the valve rod (2) at the lower end of the butterfly plate (3), a gasket (11) and an adjusting hole (103) are arranged at the lower end inside the valve body (1), the gasket (11) is positioned between the lower guide sleeve (10) and the adjusting hole (103), an adjusting nut (12) is arranged in the adjusting hole (103), and the adjusting nut (12) is abutted and matched with the gasket (11), the inside upper end of valve body (1) is equipped with direction circle (13) and sliding ring (14), sliding ring (14) are located the top of direction circle (13), gland (4) with sliding ring (14) butt cooperation and with disk seat (6) adopt bolt (15) to connect, run through in proper order valve rod (2) upper end direction circle (13), sliding ring (14) and extend to behind gland (4) the top of gland (4).

2. The fluorine-lined butterfly valve of claim 1, wherein: the butterfly plate (3) and the valve rod (2) are integrally arranged.

3. A fluorine-lined butterfly valve according to claim 1 or 2, wherein: the butterfly plate (3) with the valve rod (2) outside is equipped with sealed shell (301), sealed shell (301) will butterfly plate (3) with valve rod (2) parcel is in it.

4. The fluorine-lined butterfly valve of claim 1, wherein: and gaskets (16) and rubber rings (17) are arranged between the upper guide sleeve (9) and the guide ring (13) and between the lower guide sleeve (10) and the gasket (11).

5. The fluorine-lined butterfly valve of claim 1, wherein: and a rubber ring gasket (7) is arranged between the valve seat (6) and the valve body (1).

6. The fluorine-lined butterfly valve of claim 1, wherein: the valve body (1) comprises an upper valve body (101) and a lower valve body (102), and the upper valve body (101) is connected with the lower valve body (102) through a screw (5).

7. The fluorine-lined butterfly valve of claim 1, wherein: an O-shaped ring (8) is arranged between the butterfly plate (3) and the valve seat (6).

8. The fluorine-lined butterfly valve of claim 1, wherein: the valve seat (6) is made of FEP material.