CN221278496U

CN221278496U - Fluorine-lined regulating valve

Info

Publication number: CN221278496U
Application number: CN202323021179.2U
Authority: CN
Inventors: 金建武; 金建淼; 李智勇
Original assignee: Samson Fluid Technology Zhejiang Co ltd
Current assignee: Samson Fluid Technology Zhejiang Co ltd
Filing date: 2023-11-08
Publication date: 2024-07-05
Anticipated expiration: 2033-11-08

Abstract

The utility model relates to the technical field of valves, in particular to a fluorine-lined regulating valve, wherein a first fluorine-lined layer is coated on the inner wall of a valve body, a first extension part is extended on the first fluorine-lined layer, a second fluorine-lined layer is coated on the inner wall of a valve cover, a second extension part is extended on the second fluorine-lined layer, both the first extension part and the second extension part extend to a gap between the valve cover and the valve body, a first step is arranged at the position of the valve body corresponding to the first extension part, a first abutting ring is arranged on the first step, a second abutting ring is arranged at the position of the valve cover corresponding to the second extension part, and the first extension part and the second extension part are pressed by the first abutting ring and the second abutting ring.

Description

Fluorine-lined regulating valve

Technical Field

The utility model relates to the technical field of valves, in particular to a fluorine-lined regulating valve.

Background

In the field of industrial automation process control, the regulating valve is also called a control valve, and a final control element for changing process parameters such as medium flow, pressure, temperature, liquid level and the like by power operation is realized by receiving a control signal output by a regulating control unit. In the automatic control of modern plants, regulating valves play a very important role, generally consisting of an actuator, a valve body and accessories.

In order to enable the regulating valve to be suitable for various mediums, the structure of the fluorine lining layer is coated inside the regulating valve, so that the mediums are prevented from corroding valve fittings, and the existing fluorine lining regulating valve has the problem that the fluorine lining coating is unstable because of the leakage caused by gaps of fluorine lining, so that the fluorine lining regulating valve capable of firmly coating the fluorine lining is needed to be provided.

Disclosure of utility model

The utility model aims to overcome the defects and the shortcomings of the prior art and provide a fluorine-lined regulating valve, which has the advantages of firm fluorine-lined coating and improved sealing performance.

The technical scheme adopted by the utility model is as follows: the utility model provides a lining fluorine governing valve, includes the actuating mechanism that valve body and control valve opened and close, be equipped with the case in the valve body and with the sealed complex disk seat of case, the runner of valve body inside is separated into import runner and export runner through case and disk seat cooperation, be equipped with the valve gap between valve body and the actuating mechanism, the valve gap passes through the bolt spare and is connected with the valve body, the case is connected with the valve rod, the valve rod is kept away from the one end of case and is run through valve gap connection actuating mechanism, the cladding of valve body inner wall has first lining fluorine layer, first lining fluorine layer extends there is first extension, valve gap inner wall cladding has the second lining fluorine layer, second lining fluorine layer extends there is the second extension, first extension and second extension all extend to the clearance between valve gap and the valve body junction, the position that the valve body corresponds first extension is equipped with first step, first step is installed first support ring, the valve gap corresponds the position of second extension and is equipped with the second support ring, first extension and second extension supports the compression ring through first support ring and second compression ring.

Preferably, the valve body is provided with a second step at a position corresponding to the first step, the second step is provided with a first spring, one end of the first spring abuts against the valve body, the other end of the first spring abuts against the first abutting ring, and the first abutting ring is extruded towards the direction of the first extension part through the first spring.

Preferably, the valve core and the outer wall of the valve rod are coated with a third fluorine lining layer at the same time, the third fluorine lining layer is of an integrated structure, and the third fluorine lining layer extends to the position between the valve rod and the valve cover.

Preferably, the second supporting ring is provided with a guide post in a protruding mode towards the direction of the valve core, the valve core is provided with a guide groove in insertion fit with the guide post, the guide post penetrates through the second fluorine lining layer and the third fluorine lining layer to extend into the guide groove, and the guide post is connected with the guide groove in a sliding mode through movement of the valve core.

Preferably, the bottom of the guide groove is sequentially provided with a second spring and a buffer block, and the buffer block is extruded towards the outer direction of the guide groove through the second spring.

Preferably, an arc surface is arranged on the end surface of one end of the guide post, which extends into the guide groove, and a concave surface matched with the arc surface is arranged on the end surface of one end of the buffer block, which is close to the guide post.

Preferably, the guide post is sleeved with a corrugated pipe, one end of the corrugated pipe is clamped with the second fluorine lining layer, the other end of the corrugated pipe is clamped with the third fluorine lining layer, and elastic sealing rings are arranged at the clamping positions of the corrugated pipe, the second fluorine lining layer and the third fluorine lining layer.

The beneficial effects of the utility model are as follows: the utility model has the structure for improving the coating firmness of the fluorine lining layer, namely, the first abutting ring and the second abutting ring are abutted against the first extension part of the first fluorine lining layer and the second extension part of the second fluorine lining layer at the same time, so that the leakage of a medium from a gap between the first extension part and the second extension part is prevented.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic diagram of a fluorine lined regulating valve of the present utility model;

FIG. 2 is a schematic view of a partially enlarged structure of the present utility model;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2;

FIG. 4 is a schematic view of a partial enlarged structure at B in FIG. 2;

In the figure, the valve body comprises a 1-valve body, a 2-actuating mechanism, a 3-valve core, a 4-valve seat, a 5-inlet flow passage, a 6-outlet flow passage, a 7-valve cover, a 8-valve rod, a 9-first fluorine lining layer, a 10-first extension part, a 11-second fluorine lining layer, a 12-second extension part, a 13-first step, a 14-first supporting ring, a 15-second supporting ring, a 16-second step, a 17-first spring, a 18-third fluorine lining layer, a 19-guide pillar, a 20-guide groove, a 21-second spring, a 22-buffer block, a 23-circular arc surface, a 24-concave surface, a 25-corrugated pipe and a 26-elastic sealing ring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.

The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, in an embodiment of the present utility model, the fluorine-lined regulating valve includes a valve body 1 and an actuating mechanism 2 for controlling the opening and closing of the valve, a valve core 3 and a valve seat 4 in sealing fit with the valve core 3 are disposed in the valve body 1, a flow passage inside the valve body 1 is separated into an inlet flow passage 5 and an outlet flow passage 6 by the matching of the valve core 3 and the valve seat 4, a valve cover 7 is disposed between the valve body 1 and the actuating mechanism 2, the valve cover 7 is connected with the valve body 1 by a bolt, the valve core 3 is connected with a valve rod 8, one end of the valve rod 8 far from the valve core 3 penetrates through the valve cover 7 to connect the actuating mechanism 2, a first fluorine-lined layer 9 is coated on an inner wall of the valve body 1, a first extension portion 10 is extended on the first fluorine-lined layer 9, a second fluorine-lined layer 11 is coated on an inner wall of the valve cover 7, a second extension portion 12 is extended on the second fluorine-lined layer 11, the first extension portion 10 and the second extension portion 12 are both extended to a gap between the valve body 7 and the valve body 1, a first extension portion 10 is disposed at a position corresponding to the first extension portion 10, a first tightening ring 13 is disposed at a position corresponding to the first compression ring 13 and a second compression ring 15 is disposed at a position corresponding to the second extension portion 14, and a second compression ring 15 is disposed at a position corresponding to the second extension portion 15. The utility model has the structure for improving the coating firmness of the fluorine lining layer, namely, the first abutting ring and the second abutting ring are abutted against the first extension part of the first fluorine lining layer and the second extension part of the second fluorine lining layer at the same time, so that the leakage of a medium from a gap between the first extension part and the second extension part is prevented.

The valve body 1 is provided with a second step 16 at a position corresponding to the first step 13, the second step 16 is provided with a first spring 17, one end of the first spring 17 is propped against the valve body 1, the other end of the first spring is propped against the first propping ring 14, and the first propping ring 14 is extruded towards the first extension part 10 through the first spring 17. Through above-mentioned structure, install promptly and exert the first spring of pretightning force, the elasticity that first spring provided extrudees first extension direction with first tight ring, makes the inseparabler of both butt of first extension and second extension, further improves the sealed effect of lining fluorine layer.

The valve core 3 and the outer wall of the valve rod 8 are coated with a third fluorine lining layer 18 at the same time, the third fluorine lining layer 18 is of an integrated structure, and the third fluorine lining layer 18 extends between the valve rod 8 and the valve cover 7. Through above-mentioned structure, the valve core is covered simultaneously with the valve rod through the third lining fluorine layer of integral type structure promptly, makes case and valve rod form integral type structure, does not have the leak source, and the third lining fluorine layer extends to between valve rod and the valve gap, further improves lining fluorine layer's anticorrosion protection scope.

The second supporting ring 15 is provided with a guide post 19 in a protruding mode towards the direction of the valve core 3, the valve core 3 is provided with a guide groove 20 in plug-in fit with the guide post 19, the guide post 19 penetrates through the second fluorine lining layer 11 and the third fluorine lining layer 18 to extend into the guide groove 20, and the guide post 19 is in sliding connection with the guide groove 20 through movement of the valve core 3. Through the structure, namely the guide post protruding from the second supporting ring, the valve core is provided with the guide groove matched with the guide post, and the guide post is in sliding fit with the guide groove when the valve core is opened and closed, so that the valve core is guided, the valve core is prevented from shaking under the working environment of high pressure difference, and the safety performance is improved.

The bottom of the guide groove 20 is sequentially provided with a second spring 21 and a buffer block 22, and the buffer block 22 is pressed towards the outer direction of the guide groove 20 through the second spring 21. Through above-mentioned structure, second spring and buffer block in the guide way promptly, when the case is in the stroke of opening, guide pillar slides to the guide way tank bottom, and buffer block with the second spring carries out the cushioning effect to the guide pillar, prevents guide pillar and guide way tank bottom collision to avoid causing the part damage.

An arc surface 23 is arranged on the end surface of one end of the guide post 19 extending into the guide groove 20, and a concave surface 24 matched with the arc surface 23 is arranged on the end surface of one end of the buffer block 22, which is close to the guide post 19. Through the structure, namely the arc surface of the guide pillar is matched with the concave surface of the buffer block, the contact area of the guide pillar and the buffer block is increased, the pressure is dispersed, and the buffer capacity of the buffer block is further improved.

The corrugated pipe 25 is sleeved outside the guide pillar 19, one end of the corrugated pipe 25 is clamped with the second fluorine lining layer 11, the other end of the corrugated pipe 25 is clamped with the third fluorine lining layer 18, and elastic sealing rings 26 are arranged at the clamping positions of the corrugated pipe 25, the second fluorine lining layer 11 and the third fluorine lining layer 18. Through the structure, namely the corrugated pipe sleeved with the guide post, the corrugated pipe can not influence the sliding fit of the guide post and the guide groove, protect the guide post, prevent the guide post from being influenced by a medium, and the elastic sealing rings are arranged at the joints of the corrugated pipe, the second fluorine lining layer and the third fluorine lining layer, so that the tightness of the corrugated pipe is further improved.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a lining fluorine governing valve, includes actuating mechanism (2) that valve body (1) and control valve opened and close, be equipped with case (3) in valve body (1) and with case (3) sealing fit's disk seat (4), the inside runner of valve body (1) is separated into import runner (5) and export runner (6) through case (3) and disk seat (4) cooperation, be equipped with valve gap (7) between valve body (1) and actuating mechanism (2), valve gap (7) are connected with valve body (1) through the bolt spare, case (3) are connected with valve rod (8), valve rod (8) are kept away from the one end of case (3) and are run through valve gap (7) and connect actuating mechanism (2), its characterized in that: the valve body (1) inner wall cladding has first lining fluorine layer (9), first lining fluorine layer (9) extend has first extension (10), valve gap (7) inner wall cladding has second lining fluorine layer (11), second lining fluorine layer (11) extend has second extension (12), gap between valve gap (7) and valve body (1) junction is all extended to first extension (10) and second extension (12), the position that valve body (1) corresponds first extension (10) is equipped with first step (13), first step (13) are installed first and are supported tight ring (14), the valve gap (7) correspond the position of second extension (12) and are equipped with second and support tight ring (15), first extension (10) and second extension (12) are supported tight through first and second and support tight ring (15) extrusion.

2. A fluorine lined regulating valve as defined in claim 1, wherein: the valve body (1) is provided with a second step (16) corresponding to the first step (13), the second step (16) is provided with a first spring (17), one end of the first spring (17) is propped against the valve body (1) and the other end of the first spring is propped against the first propping ring (14), and the first propping ring (14) is extruded towards the direction of the first extension part (10) through the first spring (17).

3. A fluorine lined regulating valve as defined in claim 1, wherein: the valve core (3) and the outer wall of the valve rod (8) are coated with a third fluorine lining layer (18) at the same time, the third fluorine lining layer (18) is of an integrated structure, and the third fluorine lining layer (18) extends between the valve rod (8) and the valve cover (7).

4. A fluorine lined regulating valve according to claim 3, wherein: the second supporting ring (15) is provided with a guide pillar (19) in a protruding mode towards the direction of the valve core (3), the valve core (3) is provided with a guide groove (20) which is in plug-in fit with the guide pillar (19), the guide pillar (19) penetrates through the second fluorine lining layer (11) and the third fluorine lining layer (18) to extend into the guide groove (20), and the guide pillar (19) is in sliding connection with the guide groove (20) through movement of the valve core (3).

5. A fluorine lined regulating valve as defined in claim 4, wherein: the bottom of the guide groove (20) is sequentially provided with a second spring (21) and a buffer block (22), and the buffer block (22) is extruded towards the outer direction of the guide groove (20) through the second spring (21).

6. A fluorine lined regulating valve as defined in claim 5, wherein: the guide post (19) stretches into the end face of one end of the guide groove (20) and is provided with an arc surface (23), and the end face of one end of the buffer block (22) close to the guide post (19) is provided with a concave surface (24) matched with the arc surface (23).

7. A fluorine lined regulating valve as defined in claim 4, wherein: bellows (25) are sleeved outside the guide pillar (19), one end of the bellows (25) is clamped with the second fluorine lining layer (11) and the other end of the bellows is clamped with the third fluorine lining layer (18), and elastic sealing rings (26) are arranged at the clamping positions of the bellows (25) with the second fluorine lining layer (11) and the third fluorine lining layer (18).