CN217927203U

CN217927203U - Throttle valve of integrated valve seat

Info

Publication number: CN217927203U
Application number: CN202222137257.4U
Authority: CN
Inventors: 韩泽海
Original assignee: Dhv Valve & Foundry Suzhou Co ltd
Current assignee: Dhv Valve & Foundry Suzhou Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-11-29
Anticipated expiration: 2032-08-15

Abstract

The utility model relates to a choke valve of integral type disk seat, including a valve body, a valve gap, a valve rod, an outer sliding sleeve subassembly and a disk seat, the outer sliding sleeve subassembly is equipped with a first recess, and the inner wall department of first recess is equipped with an outer sliding sleeve, and the top department of disk seat is equipped with a throttle section of thick bamboo, a throttle section of thick bamboo and disk seat integrated into one piece to process out sealed face above the disk seat, adopt the carbide build-up welding. The outer wall of the valve seat is sequentially provided with a first annular groove, a vertical groove and a second annular groove from top to bottom. The throttling valve of the integrated valve seat has the advantages of convenience in installation, improvement of wear resistance, convenience in limiting, improvement of sealing performance and the like.

Description

Throttle valve of integrated valve seat

Technical Field

The utility model relates to a choke valve technical field, especially a choke valve of outer sliding sleeve formula integral type disk seat.

Background

At present, a throttle valve is used as a control valve and is widely applied in practice, generally, a throttle cylinder and a valve seat of the throttle valve are two independent parts, an interference connection mode is adopted, and a sealing ring of the valve seat is a soft sealing structure. However, for some special materials, temperatures or media, the throttling cylinder and the valve seat cannot be in interference connection, and the soft sealing ring material cannot adapt to corresponding working conditions.

To this end, we have developed a throttle valve with an integral valve seat to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is in order to overcome prior art not enough and provide the choke valve of integral type disk seat, has easy to assemble, improves the wearability, is convenient for spacing and improves advantages such as leakproofness.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a choke valve of integral type disk seat, includes a valve body, a valve gap, a valve rod, an outer sliding sleeve subassembly and a disk seat, the top of valve body with valve gap fixed connection, the bottom of valve rod with bush fixed connection is passed through on the top of outer sliding sleeve subassembly, outer sliding sleeve subassembly with the crimping has first O shape to enclose between the disk seat, the valve body with the crimping has second O shape to enclose between the disk seat, outer sliding sleeve subassembly with the water inlet intercommunication of valve body, the bottom of disk seat with the delivery port intercommunication of valve body.

Preferably, a throttling cylinder is arranged at the top end of the valve seat, and a first annular groove is formed in the outer wall of the throttling cylinder.

Preferably, the top end of the outer wall of the valve seat is provided with the first annular groove, and the first annular groove is in compression joint with the inner wall of the outer sliding sleeve assembly.

Preferably, the valve body is provided with a step groove, and the step groove is abutted with the lower side of the outer wall of the valve seat.

Preferably, the valve seat is provided with a flange, the outer wall of the flange is provided with a second annular groove, and the step groove is in compression joint with a second O-shaped ring between the second annular groove.

Preferably, the outer sliding sleeve component is provided with a first groove, and an outer sliding sleeve is arranged on the inner wall of the first groove.

Preferably, a first conical surface is arranged at the bottom end of the first groove, a second conical surface is arranged at the bottom end of the outer sliding sleeve, and the first conical surface and the second conical surface are arranged in a coplanar manner.

Preferably, a circle of vertical groove is arranged at the middle position of the valve seat, and the vertical groove is abutted to the second conical surface.

Preferably, the outer wall of the valve seat is provided with a surfacing layer.

Preferably, the top end of the outer sliding sleeve component is provided with a plurality of through holes, and the through holes are respectively communicated with the valve cover and the valve seat.

Because of the application of above-mentioned technical scheme, compared with the prior art, the utility model has the following advantage:

the throttle valve with the integrated valve seat of the utility model designs the valve seat and the throttle cylinder into an integral structure, which is convenient for installation and enlarges the application range; a sealing surface is processed on the valve seat, and the surface of the valve seat is subjected to hard alloy surfacing, so that the surface strength and the wear resistance are improved; the vertical groove is arranged, so that the second conical surface is convenient to limit; the double-O-shaped ring sealing structure improves the sealing property and prolongs the service life.

Drawings

Figure 1 is the utility model discloses a structure schematic diagram of the choke valve of integral type disk seat.

Fig. 2 is an enlarged view of a portion a of fig. 1 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In fig. 1 to 2, a throttle valve with an integrated valve seat comprises a valve body 1, a valve cover 9, a valve rod 7, an outer sliding sleeve assembly 3 and a valve seat 4.

The top of the valve body 1 is fixedly connected with the valve cover 9, the bottom of the valve rod 7 is fixedly connected with the top of the outer sliding sleeve component 3 through a bushing 8, a first O-shaped ring 5 is arranged between the outer sliding sleeve component 3 and the valve seat 4 in a compression joint mode, a second O-shaped ring 2 is arranged between the valve body 1 and the valve seat 4 in a compression joint mode, the outer sliding sleeve component 3 is communicated with a water inlet of the valve body 1, a plurality of through holes 33 are formed in the top of the outer sliding sleeve component 3, and the through holes 33 are respectively communicated with the valve cover 9 and the valve seat 4. The bottom end of the valve seat 4 is communicated with the water outlet of the valve body 1.

A step groove 11 is arranged at the intersection of the water inlet and the water outlet flow passages of the valve body 1, and the step groove 11 is abutted against the lower side of the outer wall of the valve seat 4.

The top end of the valve seat 4 is provided with a throttling cylinder 49, the throttling cylinder 49 and the valve seat 4 are integrally formed, a sealing surface is processed on the valve seat 4, and hard alloy surfacing is adopted.

The outer wall of the valve seat 4 is sequentially provided with a first ring groove 42, a vertical groove 46 and a second ring groove 41 from top to bottom, the top end of the outer wall of the valve seat 4 is provided with the first ring groove 42, that is, the outer wall of the throttle cylinder 49 is provided with the first ring groove 42. The middle position of the valve seat 4 is provided with a circle of vertical grooves 46, the valve seat 4 is provided with a flange 45, and the outer wall of the flange 45 is provided with a second annular groove 41. The first ring groove 42 is pressed against the inner wall of the outer sliding sleeve component 3. The vertical groove 46 abuts the second taper surface 321. A second O-ring 2 is pressed between the step groove 11 and the second annular groove 41. The outer wall of the valve seat 4 is provided with a layer of metal alloy overlaying layer 47, and the overlaying layer 47 improves the wear resistance of the surface of the valve seat 4.

The outer sliding sleeve component 3 is provided with a first groove 31 with a Y-shaped structure, an outer sliding sleeve 32 is arranged on the inner wall of the first groove 31, and a first conical surface 35 is arranged at the bottom end of the first groove 31. The bottom end of the outer sliding sleeve 32 is provided with a second taper surface 321. The first tapered surface 35 is disposed coplanar with the second tapered surface 321.

The second O-ring 2 is assembled into the valve body 1 after the valve seat 4 and the throttle cylinder 49 are integrated. The first O-shaped ring 5 is arranged in the valve seat 4 and throttling cylinder 49 integrated part and is sleeved in the outer sliding sleeve component 3, and the vertical distance between the valve seat 4 and the outer sliding sleeve 32 is adjusted by twisting the valve rod 7 according to the actual situation, so that the liquid flow is adjusted.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a choke valve of integral type disk seat which characterized in that: including a valve body (1), a valve gap (9), a valve rod (7), an outer sliding sleeve subassembly (3) and a disk seat (4), the top of valve body (1) with valve gap (9) fixed connection, the bottom of valve rod (7) with bush (8) fixed connection is passed through on the top of outer sliding sleeve subassembly (3), outer sliding sleeve subassembly (3) with the crimping has first O shape circle (5) between disk seat (4), valve body (1) with the crimping has second O shape circle (2) between disk seat (4), outer sliding sleeve subassembly (3) with the water inlet intercommunication of valve body (1), the bottom of disk seat (4) with the delivery port intercommunication of valve body (1).

2. The throttling valve with an integrated valve seat according to claim 1, characterized in that a throttling cylinder (49) is arranged at the top end of the valve seat (4), and a first annular groove (42) is formed in the outer wall of the throttling cylinder (49).

3. The throttling valve with the integrated valve seat is characterized in that the top end of the outer wall of the valve seat (4) is provided with the first annular groove (42), and the first annular groove (42) is in pressure joint with the inner wall of the outer sliding sleeve assembly (3).

4. The throttling valve with an integrated valve seat according to claim 1, characterized in that the valve body (1) is provided with a step groove (11), and the step groove (11) is abutted with the lower side of the outer wall of the valve seat (4).

5. The throttling valve with an integrated valve seat according to claim 4, wherein the valve seat (4) is provided with a flange (45), the outer wall of the flange (45) is provided with a second ring groove (41), and a second O-shaped ring (2) is pressed between the step groove (11) and the second ring groove (41).

6. The throttling valve with an integrated valve seat according to claim 1, characterized in that the outer sliding sleeve component (3) is provided with a first groove (31), and an outer sliding sleeve (32) is arranged at the inner wall of the first groove (31).

7. The throttling valve with the integrated valve seat as claimed in claim 6, wherein a first conical surface (35) is arranged at the bottom end of the first groove (31), a second conical surface (321) is arranged at the bottom end of the outer sliding sleeve (32), and the first conical surface (35) and the second conical surface (321) are arranged in a coplanar manner.

8. The throttling valve with an integrated valve seat according to claim 7, characterized in that a circle of vertical grooves (46) are arranged at the middle position of the valve seat (4), and the vertical grooves (46) are abutted with the second conical surface (321).

9. Throttling valve with integrated valve seat according to claim 2, characterized in that the outer wall of the valve seat (4) is provided with a layer of weld overlay (47).

10. The throttling valve with an integrated valve seat according to claim 1, wherein a plurality of through holes (33) are formed in the top end of the outer sliding sleeve assembly (3), and the through holes (33) are respectively communicated with the valve cover (9) and the valve seat (4).