CN208519205U

CN208519205U - Ceramic slide valve

Info

Publication number: CN208519205U
Application number: CN201821072765.6U
Authority: CN
Inventors: 金浩军; 姜雅周
Original assignee: YANTAI KINGWAY SCIENCE & TECHNOLOGY Co Ltd
Current assignee: YANTAI KINGWAY SCIENCE & TECHNOLOGY Co Ltd
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2019-02-19
Anticipated expiration: 2028-07-09

Abstract

The utility model discloses a kind of ceramic slide valves, including plectane valve seat (1) and sliding block (2) and valve rod (3), valve body (4), upper mounting plate (5), valve body liner (6), flange (7)；Valve body liner (6) are equipped in the valve body (4)；The lower end of the valve rod (3) and the upper end of sliding block (2) are cooperatively connected；The side for the ceramic valve seat (8) that the sliding block (2) drives ceramic cartridge (9) to inlay on plectane valve seat (1) moves up and down, flat seal is generated with the edge of the runner hole of plectane valve seat (1), realization throttles to fluid, is switched on and off.

Description

Ceramic slide valve

Technical field

The utility model relates to valve technology fields, more particularly to a kind of ceramic slide valve.

Background technique

In the industries such as coal chemical industry, silication work, mine metallurgy, power environment protection, there are a large amount of conveying gas solid, liquid to consolidate, gas-liquid-solid The medium of three-phase, especially in grit mixture condition, it is used at present be mostly hard seal ball valve, butterfly valve, sluice valve, gate valve, insert The valves such as plate valve more or less have service life not grow, problem difficult in maintenance, and the especially strong operating condition of part erosion is to close Envelope requires stringent, but there are media sticky, easy agglomeration, easy fouling, easily crystallization or the occasion containing bulky grain, not only washes away sternly Weight, also often results in the case where various valve blockages are blocked.

By taking most commonly used hard seal ball valve under these current operating conditions as an example, it is analyzed as follows:

(1) for ball valve in opening-closing process, medium easily enters valve chamber, and accumulates in valve chamber；The meeting when medium temperature reduces It causes certain media to solidify and locking opening and closing element, therefore easily leads to the serious consequences such as valve is stuck.

(2) and when the granule medium in-line flow at high speed of high rigidity, sealing surface of seat damage or sphere are easily led to Surface spray coating falls off, and then influences valve seal effect, when serious, will lead to valve seal failure.

Sluice valve valve after running for a period of time, since lumen is full of material, and leads to valve blocking；Slide plate and clamping plate Between serious wear, while in above system, due to the physicochemical characteristics of fluid, some valves often occur trim or The damage that runner is seriously washed and cavitates after valve seat in turn results in what the even entire transportation system of valve cannot all run well Failure.

Butterfly valve, gate valve, gate valve etc., due also to the bias current of medium fluid is serious, are very easy in addition to sealing performance is bad Runner is washed away, pipeline is caused to need to be replaced frequently.

Regulating valve can be done therefore, it is necessary to one kind and makees switch valve, and lumen no backup, unsuitable blocking, medium do not wash away The valve of sealing surface, to guarantee the long-term operation of system.

Utility model content

The purpose of the utility model is to provide a kind of ceramic slide valves, realize various slurries, gas-solid granule medium, gas-solid-liquid three Not Caton, the blocking of valve in phase medium seal permanently effective, raising valve service life.

To achieve the goals above, the technical solution of the utility model are as follows: medium is by valve flowing channel hole and pipe hole Artificially partitioned, when reducing valve opening and closing, medium washes away sealing pair；By the sliding block with valve flowing channel hole respective shapes, Flat seal is carried out by runner hole marginal portion to realize the sealing of valve.

A kind of ceramics slide valve, including plectane valve seat and sliding block and valve rod, valve body, upper mounting plate, valve body liner, flange；Institute It states and is equipped with valve body liner in valve body；The lower end of the valve rod and the upper end of sliding block are cooperatively connected；The sliding block drives ceramic cartridge The side for the ceramic valve seat inlayed on plectane valve seat moves up and down, and it is close to generate plane with the edge of the runner hole of plectane valve seat Envelope, realization throttle to fluid, are switched on and off.

Ceramics slide valve described in the utility model, it is characterised in that: the plectane valve seat is circular plate shape, is fixed on valve body On.

Ceramics slide valve described in the utility model, it is characterised in that: the plectane valve seat uses damascene ceramic valve seat, The edge and primary sealing area of the runner hole of plectane valve seat are all made of structural ceramic material.

Ceramics slide valve described in the utility model, wherein the combination of ceramics and metal is mechanical interlocking, adhesive means Or mechanical gluing combination；Runner hole sealing surface uses ceramic wear-resisting material.

Ceramics slide valve described in the utility model, wherein the runner hole of the ceramic valve seat is arbitrary shape.

Ceramics slide valve described in the utility model, wherein the shape of the runner hole is round, rectangular, rectangle, triangle Shape, V-type, U-shaped or any one fan-shaped.

Ceramics slide valve described in the utility model, wherein the runner hole is made of throttle orifice.

Ceramics slide valve described in the utility model, wherein the sliding block is rectangle, using ferrule solid ceramic valve Core；The sliding block is connect with valve rod using T-slot, by linear motion, realizes flat seal with sealing surface of seat.

Ceramics slide valve described in the utility model, wherein valve body liner two sides are equipped with flange, the lower part of the flange Equipped with inclined-plane, guiding role is played when sliding block moves up and down；The lower part of the sliding block also is provided with inclined-plane, closes in ceramic slide valve When, cooperate with the inclined-plane of valve body liner, closely adhere to ceramic cartridge on ceramic valve seat, guarantees the sealing of ceramic slide valve, and Ceramic slide valve can be made to bear certain negative pressure；For sliding block using the shape of cooperation valve seat aperture, sliding block is solid parts.

Ceramics slide valve described in the utility model, wherein the valve rod is equipped with back seal structure, can use with bonnet, Taper contact sealing, facilitates and replaces airtight and watertight padding in situation with pressure；Ceramic slide valve support is formed equipped with O-ring and graphite annulus Double sealing structure.Even if O-ring damages or causes O-ring to fail due to fire etc., graphite annulus is able to maintain close always Envelope state；Valve seal performance is improved in this way, and increases the service life of valve, and the fire prevention for being able to satisfy valve needs It asks.

Compared with the existing technology, the protrusion effect of the utility model is:

(1) the utility model structure is simple, compact, and opening and closing torque is small, is not easy blocking, avoids bias current, and have automatically cleaning Function both can be used as regulating valve use, can also be used as switch valve use, is a kind of very strong valve of versatility, is particularly suitable for Medium impurity is more, easy fouling, crystallization, occasion sticky or containing bulky grain, can effectively avoid various blockings, and primary seal pair uses High performance structure ceramic material has fabulous corrosion resistant, wear-resisting, flushing resistance, substantially increases the service life of valve.

(2) common hard seal ball valve sealing pair is spherical structure, and such sealing pair is to process equipment and the accuracy of manufacture It is required that high, sealing surface of seat is ground after must finishing with sphere, and match grinding is also needed after grinding, and production technology is complicated, Production cycle is long, therefore its production efficiency is low, and production cost is constantly soaring.The sealing pair of the utility model is close using plane Seal structure ensure that good sealing performance, and improve processing technology.Therefore, no matter from properties of product, manufacturing cost And the angle of production efficiency is set out, the utility model all has a clear superiority.

(3) use integral sintered hard alloy or ceramic material as main component, it can be to avoid solid under High Pressure Difference Grain is to the erosion and cavitation of trim and runner, to reduce the destruction to them.

(4) the same shape by designing various throttle orifices, makes this valve not only have break-in facility, and can be according to customer requirement Realize the adjusting of various discharge characteristics.

(5) the utility model has good seal performance, long-life, easily manufacture, just maintenance and good appearance, compact-sized etc. Advantage.

Explanation and specific embodiment are described further ceramic slide valve described in the utility model with reference to the accompanying drawing.

Detailed description of the invention

Fig. 1 is the ceramic sliding valve structure schematic diagram of the utility model；

Fig. 2~20 are the schematic diagram of valve seat runner hole.

Specific embodiment

As shown in Figure 1, a kind of ceramics slide valve, including plectane valve seat 1 and sliding block 2 and valve rod 3, valve body 4, upper mounting plate 5, Valve body liner 6, flange 7；Valve body liner 6 is equipped in the valve body 4；The lower end of the valve rod 3 and the upper end of sliding block 2, which cooperate, to be connected It connects；The side for the ceramic valve seat 8 that the sliding block 2 drives ceramic cartridge 9 to inlay on plectane valve seat 1 moves up and down, with plectane The edge of the runner hole of valve seat 1 generates flat seal, and realization throttles to fluid, is switched on and off.

Plectane valve seat 1 is circular plate shape, is fixed on valve body 4.Plectane valve seat 1 uses damascene ceramic valve seat 8, plectane The edge and primary sealing area of the runner hole of valve seat 1 are all made of structural ceramic material.

The combination of ceramics and metal is mechanical interlocking, adhesive means or mechanical gluing combination；Runner hole sealing Face uses ceramic wear-resisting material.

Up and down motion of the ceramic cartridge 9 on ceramic valve seat 8 can also clean sealing surface；Meanwhile fixed disc valve Seat 1 and 2 sealing surface of sliding block after, be a runner of the all-pass without any blocking, will not accumulation medium cause agglomeration, crystallization cause Valve blockage.Medium will not wash away sealing surface in the runner hole process of ceramic valve seat 8, can guarantee the long-term operation of system.

As shown in Fig. 2-20, the runner hole of ceramic valve seat 8 be can have any shape, such as round, rectangular, rectangle, triangle Shape, V-type, U-shaped or any one fan-shaped.It can also be made of throttle orifice.

Sliding block 2 is rectangle, using ferrule solid ceramic spool 9；Guarantee that sealing is permanently effective, greatly improves valve fortune The row service life.The sliding block 2 is connect with valve rod 3 using T-slot, by linear motion, realizes flat seal with sealing surface of seat.

6 two sides of valve body liner are equipped with flange, and the lower part of the flange is equipped with inclined-plane, plays and lead when sliding block 2 moves up and down To effect；The lower part of the sliding block 2 also is provided with inclined-plane, when ceramic slide valve is closed, cooperates with the inclined-plane of valve body liner 6, makes to make pottery Porcelain spool 9 closely adheres on ceramic valve seat 8, guarantees the sealing of ceramic slide valve, and ceramic slide valve can be made to bear certain negative pressure； The sliding block 2 is solid parts, using the shape of the runner hole of cooperation plectane valve seat 1.

Valve rod 3 is equipped with back seal structure, can contact sealing using taper with bonnet, facilitate replaced in situation with pressure it is close Packing material；Valve seat is equipped with the double sealing structure that O-ring and graphite annulus form.

Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines In range.

Claims

1. a kind of ceramics slide valve, it is characterised in that: including plectane valve seat (1) and sliding block (2) and valve rod (3), valve body (4), on Platform (5), valve body liner (6), flange (7)；Valve body liner (6) are equipped in the valve body (4)；The lower end of the valve rod (3) with The upper end of sliding block (2) is cooperatively connected；The ceramic valve seat that the sliding block (2) drives ceramic cartridge (9) to inlay on plectane valve seat (1) (8) side moves up and down, and generates flat seal with the edge of the runner hole of plectane valve seat (1), realization saves fluid It flows, be switched on and off.

2. ceramics slide valve according to claim 1, it is characterised in that: the plectane valve seat (1) is circular plate shape, is fixed on On valve body (4).

3. ceramics slide valve according to claim 2, it is characterised in that: the plectane valve seat (1) is using damascene ceramics Valve seat (8), the edge and primary sealing area of the runner hole of plectane valve seat (1) are all made of structural ceramic material.

4. ceramics slide valve according to claim 3, it is characterised in that: ceramics and the combination of metal be mechanical interlocking, Adhesive means or mechanical gluing combination；Runner hole sealing surface uses ceramic wear-resisting material.

5. ceramics slide valve according to claim 4, it is characterised in that: the runner hole of the ceramic valve seat (8) is arbitrary shape Shape.

6. ceramics slide valve according to claim 5, it is characterised in that: the shape of the runner hole is round, rectangular, rectangular Shape, triangle, V-type, U-shaped or any one fan-shaped.

7. ceramics slide valve according to claim 6, it is characterised in that: the runner hole is made of throttle orifice.

8. ceramics slide valve according to claim 7, it is characterised in that: the sliding block (2) is rectangle, using ferrule reality Heart ceramic cartridge (9)；The sliding block (2) is connect with valve rod (3) using T-slot, by linear motion, is realized with sealing surface of seat Flat seal.

9. ceramics slide valve according to claim 8, it is characterised in that: valve body liner (6) two sides are equipped with flange, described The lower part of flange is equipped with inclined-plane, plays guiding role when sliding block (2) move up and down；The lower part of the sliding block (2) also is provided with tiltedly Face cooperates with the inclined-plane of valve body liner (6) when ceramic slide valve is closed, ceramic cartridge (9) is made to closely adhere to ceramic valve seat (8) on, guarantee the sealing of ceramic slide valve, and ceramic slide valve can be made to bear certain negative pressure；The sliding block (2) is solid parts, Using the shape of the runner hole of cooperation plectane valve seat (1).

10. ceramics slide valve according to claim 9, it is characterised in that: the valve rod (3) is equipped with back seal structure, can Sealing is contacted using taper with bonnet, facilitates and replaces airtight and watertight padding in situation with pressure；Valve seat is equipped with O-ring and graphite annulus group At double sealing structure.