CN219299956U

CN219299956U - Fireproof and antistatic soft sealing regulating valve

Info

Publication number: CN219299956U
Application number: CN202320194457.5U
Authority: CN
Inventors: 王刚
Original assignee: Gangte Valve Technology Co ltd
Current assignee: Gangte Valve Technology Co ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-07-04
Anticipated expiration: 2033-01-31

Abstract

The utility model discloses a fireproof and antistatic soft sealing regulating valve which is characterized by comprising a valve body, a valve seat detachably connected in the valve body, a valve cage positioned in the valve body and positioned above the valve seat, a valve core positioned in the valve cage and capable of propping against the valve seat, and a valve rod driving the valve core to move up and down, wherein electrostatic leading-out components which are in contact with the inner wall of the valve body are arranged on the outer walls of the valve seat, the valve cage and the valve rod, so that the problem that the prior art is easy to generate static electricity and has potential safety hazards is solved.

Description

Fireproof and antistatic soft sealing regulating valve

Technical Field

The utility model relates to the technical field of regulating valves, in particular to a fireproof and antistatic soft sealing regulating valve.

Background

In fluid piping, valves are control elements that primarily function to isolate equipment from the piping, regulate flow, prevent backflow, regulate and drain pressure. Can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The existing regulating valve comprises a valve body, a valve seat positioned in the valve body, a valve cage arranged in the valve body, a valve core positioned in the valve cage and a valve rod driving the valve core to move up and down, wherein the valve seat and the valve body are integrally formed, the valve seat is worn by the valve core to cause the scrapping of the whole valve body, and resources are wasted.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a soft sealing regulating valve capable of eliminating internal static electricity.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a soft seal governing valve of fire prevention and antistatic, includes the valve body, can dismantle the disk seat of connecting in the valve body, the valve cage of being located in the valve body and being located the disk seat top, be located the valve cage and can with the case of disk seat top contact and drive the valve rod that the case reciprocated, all be provided with the static derivation subassembly of contact with the valve body inner wall on disk seat, valve cage and the outer wall of valve rod.

As a further improvement of the utility model, the static electricity leading-out assembly comprises a conductive ball which can be propped against the inner wall of the valve body and a conductive spring which pushes the conductive ball towards the valve body.

As a further improvement of the utility model, the outer wall of the valve core is provided with a sealing surface which can be jointed with a valve seat, and the valve seat is coaxially embedded with a soft sealing ring which can be jointed with the sealing surface.

As a further improvement of the utility model, the inner wall of the valve body is connected with an adjusting sleeve which is sleeved outside the valve rod and used for limiting the valve core in a threaded manner.

As a further improvement of the utility model, the end of the valve core penetrating through the valve seat is hemispherical.

The utility model has the beneficial effects that: the static guide-out components are arranged between the valve seat and the valve body, between the valve cage and the valve body and between the valve rod and the valve body, so that compared with the design, the static guide-out device can always keep the conducting state of the valve seat, the valve cage and the valve rod and the valve body, and can timely eliminate static generated by friction, thereby avoiding the phenomenon of medium explosion and improving the safety.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is an enlarged view at B in fig. 1.

Reference numerals: 1. a valve body; 2. a valve seat; 3. a valve cage; 4. a valve core; 41. sealing surfaces; 5. a valve stem; 6. an electrostatic derivation component; 61. a conductive ball; 62. a conductive spring; 7. a soft seal ring; 8. the sleeve is adjusted.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals.

Referring to fig. 1 to 3, a soft sealing regulating valve for fire prevention and static electricity prevention of the present embodiment includes a valve body 1, a valve seat 2 detachably connected to the valve body 1, a cage 3 positioned in the valve body 1 and above the valve seat 2, a valve core 4 positioned in the cage 3 and capable of contacting with the valve seat 2, and a valve rod 5 driving the valve core 4 to move up and down;

based on the prior art, the outer walls of the valve seat 2, the valve cage 3 and the valve rod 5 are respectively provided with the static electricity leading-out component 6 contacted with the inner wall of the valve body 1, the static electricity leading-out component 6 comprises a conductive ball 61 and a conductive spring 62, the conductive ball 61 and the conductive spring 62 are respectively made of conductive materials, in the installation process, the valve body 1 comprises a valve cover and a seat body, the outer walls of the valve cage 3, the valve seat 2 and the valve rod 5 are respectively provided with a blind hole, the diameter of the conductive ball 61 and the maximum diameter of the conductive spring 62 are matched with the inner diameter of the blind hole, a clamping cavity with gradually reduced inner diameter can be processed at the bottom end of the blind hole, one end of the conductive spring 62 is welded with the conductive ball 61, then the conductive spring 62 is installed in the blind hole and one end of the conductive spring 62 is clamped with the clamping cavity, the conductive ball 61 is positioned at the hole opening of the blind hole, then the valve seat 2, the valve cage 3 and the valve core 4 are successively installed in the seat body, one end of the valve rod 5 is connected with the valve core 4 and the other end of the valve body is positioned outside the seat body, and finally the valve cover is covered on the seat body so that the valve cover 3 is pressed down, the cage 3 is pressed by the valve cover 2, the valve seat 2 is positioned in the valve cover 1, one end of the valve cover 5 and the valve cover is contacted with the inner wall of the valve body 1 by three conductive springs, and the conductive balls 61 are penetrated through the valve body 1;

compared with the prior art, the design can always keep the conduction state of the valve seat 2, the valve cage 3 and the valve rod 5 and the valve body 1, and can timely eliminate static electricity generated by friction, thereby avoiding the phenomenon of medium explosion and improving the safety; meanwhile, the pretightening force generated by pushing the conductive ball 61 to contact with the valve body 1 by the conductive spring 62 can improve the compactness among the valve seat 2, the valve cage 3 and the valve rod 5 and the valve body 1, and the structural stability is improved.

As a specific embodiment of improvement, in the prior art, a valve seat 2 and a valve core 4 are adopted to form a hard seal to prevent medium from flowing, but the hard seal has high processing requirement on the sealing surface and is easy to leak due to abrasion, and the sealing performance is unstable, in order to solve the problems, referring to fig. 1 and 2, the outer wall of the valve core 4 is provided with the sealing surface 41, the sealing surface 41 is a circumferential surface of a round table and the small end of the sealing surface faces the valve seat 2, the end surface of the valve seat 2 facing the valve cage 3 is provided with an annular groove, a soft sealing ring 7 is clamped in the valve seat 2, the soft sealing ring 7 is made of a material with fire resistance or high combustion point, when the valve core 4 blocks the medium flowing in the valve body 1, the soft sealing ring 7 is tightly adhered to the sealing surface 41 to form a soft seal, and deforms along with the compression of the soft sealing ring 7 or reduces due to abrasion, and the sealing surface 41 moves downwards to be adhered to the valve seat 2 to form a hard seal, and compared with the design that the prior art only adopts the design of the hard seal to improve the sealing performance between the valve core 4 and the valve seat 2, and the soft sealing can realize soft sealing and hard sealing, and the soft sealing after the soft sealing ring 7 or the valve seat 2 can be replaced respectively after being damaged, and the resource waste is reduced.

As a specific implementation way for improvement, referring to fig. 1, the valve body 1 comprises a valve cover and a seat body, an internal thread is processed on the valve cover, an adjusting sleeve 8 with external threads is connected to the valve cover by threads, the adjusting sleeve 8 is made of conductive materials, the inner diameter of the adjusting sleeve 8 is matched with the diameter of the valve rod 5, a conductive ball 61 on the valve rod 5 is in contact with the inner wall of the adjusting sleeve 8, when the valve core 4 or a shaft shoulder of the valve rod 5 is in contact with the adjusting sleeve 8, the valve body 1 is opened in place, the maximum moving distance of the valve core 4 is changed by rotating the adjusting sleeve 8 relative to the valve cover, so that the output work required by an actuator for driving the valve rod 5 can be regulated, and the consumption of energy sources is rationalized; simultaneously, the adjusting sleeve 8 and the valve cover jointly fix the position of the valve rod 5, so that the valve rod 5 is kept straight, and the valve rod 5 is stable in structure.

As a specific implementation manner of improvement, referring to fig. 1, the end of the valve core 4 penetrating through the valve seat 2 is hemispherical, so that compared with the design that the end surface of the valve core 4 is planar, the design can slow down the resistance of the medium to the valve core 4, and the valve core 4 can move downwards conveniently, thereby achieving the effect of quick closing.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a soft seal governing valve of fire prevention and static electricity, includes valve body (1), can dismantle disk seat (2) of connecting in valve body (1), be located in valve body (1) and be located valve cage (3) of disk seat (2) top, be located valve cage (3) and can with valve core (4) and valve rod (5) that drive valve core (4) reciprocate of disk seat (2) top contact, its characterized in that: the electrostatic guiding-out assembly (6) contacted with the inner wall of the valve body (1) is arranged on the outer walls of the valve seat (2), the valve cage (3) and the valve rod (5).

2. A fire and static resistant soft seal regulator valve according to claim 1, wherein: the static electricity leading-out component (6) comprises a conductive ball (61) which can be propped against the inner wall of the valve body (1) and a conductive spring (62) which pushes the conductive ball (61) to the valve body (1).

3. A fire and static resistant soft seal regulator valve according to claim 1 or 2, wherein: the valve is characterized in that a sealing surface (41) capable of being attached to the valve seat (2) is arranged on the outer wall of the valve core (4), and a soft sealing ring (7) capable of being attached to the sealing surface (41) is coaxially embedded on the valve seat (2).

4. A fire and static resistant soft seal regulator valve according to claim 1 or 2, wherein: an adjusting sleeve (8) sleeved outside the valve rod (5) and used for limiting the valve core (4) is connected to the inner wall of the valve body (1) in a threaded mode.

5. A fire and static resistant soft seal regulator valve according to claim 1 or 2, wherein: the end part of the valve core (4) penetrating through the valve seat (2) is hemispherical.