CN212429813U

CN212429813U - Fluorine-lined ball valve

Info

Publication number: CN212429813U
Application number: CN202020539686.2U
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 fluorine lining ball valve, including valve body, valve gap, spheroid, valve rod, the spheroid with the surface of valve rod is equipped with the articulamentum, and the articulamentum makes the valve rod with spheroid an organic whole sets up, the internal surface of spheroid, valve body, valve gap all is equipped with the backing layer, the valve body with the inside of valve gap all is equipped with the sealing washer, be equipped with the elastic compensation groove on the sealing washer, the valve body with be equipped with the packing groove between the valve rod, the packing inslot is equipped with the bellows and packs. The utility model provides a lining fluorine ball valve all is equipped with the FEP backing layer on its valve body and the valve gap for this valve has high chemical stability to, and valve rod and spheroid an organic whole on it set up, have improved stability and security when the valve uses, are equipped with the elastic compensation groove on the sealing washer on it, make this valve have sealed characteristics lasting, self-lubricating.

Description

Fluorine-lined ball valve

Technical Field

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

Background

With the rapid development of science and technology and the continuous improvement of production process and product structure, ball valves have rapidly developed into a main valve class in short 40 years. In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere, and a circular through hole or a channel passes through the axis of the cock body. The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment.

The existing ball valve is complex in structure, particularly a fluorine-lined ball valve, and the structure is complex due to the fact that two valve bodies, a valve seat and a ball body need to be lined with fluorine and assembled, the valve seat is troublesome to install, unreliable in sealing and easy to leak, and moreover, valve rods and the ball body in most of the existing ball valves are designed in a split mode and are not beneficial to operation reliability.

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides a lining fluorine ball valve has compact structure, the leakproofness is good, the characteristics of zero leakage.

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

the utility model provides a lining fluorine ball valve, includes valve body, valve gap, spheroid, valve rod, the valve body with adopt bolted connection between the valve gap, the spheroid is located the valve body with between the valve gap, its characterized in that: the lower end of the valve rod is connected with the ball body, the upper end of the valve rod penetrates through the valve body and then extends to the upper part of the valve body and is fixedly connected with the handle, the outer surface of the ball body and the outer surface of the valve rod is provided with a connecting layer, the valve rod and the ball body are integrally arranged through the connecting layer, the inner surfaces of the ball body, the valve body and the valve cover are all provided with lining layers, the ball body is provided with a through hole which is filled with a connecting part used for connecting the connecting layer positioned on the outer surface of the ball body and the lining layer positioned on the inner surface of the ball body, the valve body and the valve cover are internally provided with sealing rings, the sealing rings are symmetrically arranged on the left side and the right side of the ball body and are matched with the ball body in an abutting mode to form sealing, an elastic compensation, the corrugated pipe packing comprises a corrugated pipe packing body and is characterized in that a plurality of inner annular grooves are formed in the inner side wall of the corrugated pipe packing body, a plurality of outer annular grooves are formed in the outer side wall of the corrugated pipe packing body, the inner annular grooves and the outer annular grooves are arranged in a staggered mode in the vertical direction, and a packing pressing sleeve is arranged above the corrugated pipe packing body.

The utility model discloses further set up to: the through holes comprise a first through hole and a second through hole, the first through hole is located at the connecting part of the upper end of the ball body and the valve rod, and the second through hole is located at the lower end of the ball body.

The utility model discloses further set up to: the lower end of the valve rod is provided with a plurality of convex connecting blocks, and the connecting blocks are uniformly distributed along the circumferential direction of the valve rod and are inserted into the connecting layers.

The utility model discloses further set up to: the inner surface of the valve body is provided with a first fixing block, the first fixing block is located below the filling groove, the inner surface of the valve cover is provided with a second fixing block, the second fixing block is located at the connecting position of the valve cover and the valve body, the lining layer is provided with a first fixing groove and a second fixing groove, the first fixing block is fixed in the first fixing groove, and the second fixing block is fixed in the second fixing groove.

The utility model discloses further set up to: the valve body and the valve cover are both provided with connecting flange discs, third fixing grooves are formed in the connecting flange discs, and the second fixing grooves are fixed to the third fixing grooves.

The utility model discloses further set up to: the connecting layer, the lining layer and the connecting part are made of FEP.

To sum up, the beneficial effects of the utility model are that: the utility model provides a lining fluorine ball valve has compact structure, the leakproofness is good, the characteristics of zero leakage, all is equipped with the FEP backing layer on its valve body and the valve gap for this valve has high chemical stability to, and valve rod and spheroid an organic whole on it set up, have improved stability and security when the valve uses, are equipped with the elastic compensation groove on the sealing washer on it, make this valve have sealed characteristics lasting, self-lubricating.

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 structural view of the present invention;

fig. 2 is an enlarged view of the structure of part a of the present invention.

Reference numerals: 1. a valve body; 101. a packing groove; 102. a first fixed block; 2. a valve cover; 201. a fixing ring; 3. a sphere; 301. a first through hole; 302. a second through hole; 4. a valve stem; 401. connecting blocks; 5. a bolt; 6. a handle; 7. a connecting layer; 8. a seal ring; 801. an elastic compensation groove; 9. filling a corrugated pipe; 901. an inner annular groove; 902. an outer annular groove; 10. pressing the sleeve; 11. a backing layer; 111. a second fixed block; 12. connecting a flange plate; 13. a connecting portion.

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 ball valve, includes valve body 1, valve gap 2, spheroid 3, valve rod 4, valve body 1 with adopt bolt 5 to connect between the valve gap 2, spheroid 3 is located valve body 1 with between the valve gap 2, the lower extreme of valve rod 4 with spheroid 3 is connected, the upper end of valve rod 4 runs through extend to behind the valve body 1 the top of valve body 1 and with handle 6 fixed connection, spheroid 3 with the surface of valve rod 4 is equipped with articulamentum 7, articulamentum 7 makes valve rod 4 with 3 an organic whole settings of spheroid, the lower extreme of valve rod 4 is equipped with a plurality of bellied connecting blocks 401, and a plurality of connecting blocks 401 are followed the circumference evenly distributed of valve rod 4, and insert connect in the articulamentum 7.

The valve body 1 and the valve cover 2 are internally provided with sealing rings 8, the sealing rings 8 are symmetrically arranged on the left side and the right side of the ball body 3 and are abutted and matched with the ball body 3 to form sealing, an elastic compensation groove 801 is arranged on the sealing ring 8, a packing groove 101 is arranged between the valve body 1 and the valve rod 4, a corrugated pipe packing 9 is arranged in the packing groove 101, the inner side wall of the corrugated pipe packing 9 is provided with a plurality of inner annular grooves 901, the outer side wall of the corrugated pipe 9 is provided with a plurality of outer annular grooves 902, the inner annular grooves 901 and the outer annular grooves 902 are arranged in a staggered mode in the vertical direction, and a packing pressing sleeve 10 is arranged above the corrugated pipe packing.

The inner surfaces of the ball body 3, the valve body 1 and the valve cover 2 are all provided with a lining layer 11, the inner surface of the valve body 1 is provided with a first fixing block 102, the first fixing block 102 is positioned below the packing groove 101, the inner surface of the valve cover 2 is provided with a convex fixing ring 201, the fixing ring 201 is positioned at the position of a connecting part 13 of the valve cover 2 and the valve body 1, the lining layer 11 is provided with a first fixing groove (not marked in the figure) and a second fixing groove (not marked in the figure), the first fixing block 102 is fixed in the first fixing groove, the fixing ring is fixedly connected in the second fixing groove, the lining layer 11 is provided with a convex second fixing block 111, the valve body 1 and the valve cover 2 are both provided with a connecting flange 12, the connecting flange 12 is provided with a third fixing groove (not marked in the figure), the second fixing block 111 is fixed in the third fixing groove, the first fixing block 102 is fixed in the first fixing groove, the second fixing block 111 is fixed in the second fixing groove, and the second fixing block is fixed in the third fixing groove to prevent the backing layer 11 from falling off.

The ball body 3 is provided with a through hole, the through hole comprises a first through hole 301 and a second through hole 302, the first through hole 301 is located at the upper end of the ball body 3 and the connecting part 13 of the valve rod 4, and the second through hole 302 is located at the lower end of the ball body 3. First through-hole 301 with all fill in the second through-hole 302 and have connecting portion 13, connecting portion 13 is used for connecting and is located the articulamentum 7 of spheroid 3 surface and being located the lining layer 11 of spheroid 3 internal surface, the material that articulamentum 7, lining layer 11, connecting portion 13 adopted is FEP.

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 ball valve, includes valve body (1), valve gap (2), spheroid (3), valve rod (4), valve body (1) with adopt bolt (5) to connect between valve gap (2), spheroid (3) are located valve body (1) with between valve gap (2), its characterized in that: the lower end of the valve rod (4) is connected with the ball body (3), the upper end of the valve rod (4) penetrates through the valve body (1) and then extends to the upper portion of the valve body (1) and is fixedly connected with the handle (6), the ball body (3) and the outer surface of the valve rod (4) are provided with a connecting layer (7), the connecting layer (7) enables the valve rod (4) and the ball body (3) to be integrally arranged, the inner surfaces of the ball body (3), the valve body (1) and the valve cover (2) are provided with lining layers (11), the ball body (3) is provided with a through hole, the through hole is filled with a connecting portion (13), the connecting portion (13) is used for connecting the connecting layer (7) on the outer surface of the ball body (3) and the lining layer (11) on the inner surface of the ball body (3), the valve body (1) and the valve cover (2), the sealing ring (8) is symmetrically arranged on the left side and the right side of the ball body (3) and is in butt fit with the ball body (3) to form sealing, an elastic compensation groove (801) is formed in the sealing ring (8), a packing groove (101) is formed between the valve body (1) and the valve rod (4), corrugated pipe packing (9) is arranged in the packing groove (101), a plurality of inner annular grooves (901) are formed in the inner side wall of the corrugated pipe packing (9), a plurality of outer annular grooves (902) are formed in the outer side wall of the corrugated pipe, the inner annular grooves (901) and the outer annular grooves (902) are arranged in a staggered mode in the vertical direction, and a packing pressing sleeve (10) is arranged above the corrugated pipe packing (9).

2. A fluorine-lined ball valve according to claim 1, wherein: the through hole comprises a first through hole (301) and a second through hole (302), the first through hole (301) is located at the upper end of the sphere (3) and the connecting part (13) of the valve rod (4), and the second through hole (302) is located at the lower end of the sphere (3).

3. A fluorine-lined ball valve according to claim 1 or 2, wherein: the lower end of the valve rod (4) is provided with a plurality of convex connecting blocks (401), and the connecting blocks (401) are uniformly distributed along the circumferential direction of the valve rod (4) and are inserted into the connecting layer (7).

4. A fluorine-lined ball valve according to claim 1, wherein: the inner surface of the valve body (1) is provided with a first fixing block (102), the first fixing block (102) is located below the filling groove (101), the inner surface of the valve cover (2) is provided with a second fixing block (111), the second fixing block (111) is located at a connecting portion (13) of the valve cover (2) and the valve body (1), the lining layer (11) is provided with a first fixing groove and a second fixing groove, the first fixing block (102) is fixed in the first fixing groove, and the second fixing block (111) is fixed in the second fixing groove.

5. A fluorine-lined ball valve according to claim 1, wherein: be equipped with bellied second fixed block (111) on backing layer (11), valve body (1) with all be equipped with flange plate (12) on valve gap (2), be equipped with the third fixed slot on flange plate (12), second fixed block (111) are fixed the third fixed slot.

6. A fluorine-lined ball valve according to claim 1, wherein: the connecting layer (7), the lining layer (11) and the connecting part (13) are made of FEP.