CN212616358U

CN212616358U - Full-bore metal hard-sealing three-eccentric regulating valve

Info

Publication number: CN212616358U
Application number: CN202021107440.4U
Authority: CN
Inventors: 钱江; 朱卫平; 孙向荣; 缪科彬
Original assignee: Wuxi Hejia Instrumentation Co ltd
Current assignee: Wuxi Hejia Instrumentation Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-02-26
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a full-bore metal hard sealing triple offset regulating valve, which comprises a valve body and a valve shaft used in pairs, wherein the valve body comprises an inlet, an outlet and a valve body cavity, a pair of valve shaft holes embedded with bearings are arranged in the vertical direction of the valve body cavity, the valve body is rotationally connected with the valve shaft through the bearings, and the valve shaft extends into the valve body cavity; the U-shaped valve plate is arranged between the valve shafts, two vertical ends of the U-shaped valve plate are correspondingly and fixedly connected with the valve shafts, and the horizontal end of the U-shaped valve plate is used for sealing an inlet in a cavity of the valve body, so that full-bore input and output of the regulating valve are realized, and the valve plate and the gland are of split structures on the premise of not influencing the sealing property of the regulating valve, so that the processing difficulty of the valve plate is reduced; the governing valve sets up sealing washer and sealing layer, has guaranteed the leakproofness of governing valve.

Description

Full-bore metal hard-sealing three-eccentric regulating valve

Technical Field

The utility model relates to a governing valve, in particular to three eccentric governing valves of full latus rectum metal hard seal.

Background

The structure of the existing valve is that a valve shaft is arranged on a central axis of a valve body, a butterfly plate is assembled on the valve shaft, the valve shaft and the butterfly plate are generally connected into a whole, the butterfly plate rotates for 90 degrees around the valve shaft, and the rotation of the butterfly plate controls the opening and closing of a valve body channel.

The problems of the existing valve are as follows: the butterfly plate and the connecting position of the butterfly plate and the valve shaft are of certain thickness, the butterfly plate can occupy a part of area of a valve body channel when being fully opened, and the effective area of the valve for dredging channels is reduced, so that the circulation capacity of the valve is influenced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a three eccentric governing valves of full latus rectum metal hard seal has realized the full latus rectum output of governing valve.

The technical scheme is as follows: the utility model relates to a full latus rectum metal hard seal triple offset governing valve, including valve body and valve shaft that uses in pairs, the valve body includes import and export and valve body chamber, is provided with a pair of valve shaft holes that embed the bearing in the vertical direction of valve body chamber, the valve body rotates with the valve shaft through the bearing to be connected, the valve shaft extends in the valve body chamber; a U-shaped valve plate is arranged between the valve shafts, two vertical ends of the U-shaped valve plate are correspondingly and fixedly connected with the valve shafts, and the horizontal end of the U-shaped valve plate is used for sealing an inlet in the valve body cavity.

Furthermore, the horizontal end of the U-shaped valve plate is provided with a sealing ring, the sealing ring is made of elastic materials, and the sealing ring is matched with the horizontal end of the U-shaped valve plate to seal an inlet in the cavity of the valve body.

Furthermore, a pressing cover is arranged at the horizontal end of the U-shaped valve plate close to the inlet in the cavity of the valve body, the pressing cover is fixedly connected with the horizontal end of the U-shaped valve plate, and the sealing ring is positioned between the horizontal end of the U-shaped valve plate and the pressing cover.

Further, a sealing layer for sealing the valve shaft hole is arranged in a gap between the valve shaft and the valve shaft hole, and the sealing layer is made of filler.

Furthermore, the valve shaft is in interference fit with the vertical end of the U-shaped valve plate, and a bolt is arranged between the valve shaft and the vertical end of the U-shaped valve plate.

Has the advantages that: the utility model discloses and prior art: the full-bore input and output of the regulating valve are realized, and the valve plate and the gland are of split structures on the premise of not influencing the sealing performance of the regulating valve, so that the processing difficulty of the valve plate is reduced; the governing valve sets up sealing washer and sealing layer, has guaranteed the leakproofness of governing valve.

Drawings

FIG. 1 is a front view of a full bore metal hard seal triple offset regulator valve;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a right side view of a full bore metal hard seal triple offset regulator valve;

fig. 4 is a sectional view B-B of fig. 3.

Detailed Description

As shown in fig. 1 to 4, a full-bore metal hard seal triple eccentric regulating valve comprises a valve body 1 and a valve shaft 2 used in pairs, wherein the valve body 1 comprises an inlet 3, an outlet and a cavity of the valve body 1, a pair of valve shaft holes embedded with bearings are arranged in the vertical direction of the cavity of the valve body 1, the valve body 1 is rotatably connected with the valve shaft 2 through the bearings, and the valve shaft 2 extends into the cavity of the valve body 1; the valve is characterized in that a U-shaped valve plate 5 is arranged between the valve shafts 2, two vertical ends of the U-shaped valve plate 5 are correspondingly and fixedly connected with the valve shafts 2, and the horizontal end of the U-shaped valve plate is used for sealing an inlet 3 in a cavity of the valve body 1. When the regulating valve is opened, the U-shaped valve plate 5 can completely open the inlet 3, and one side hidden in the cavity of the valve body 1 does not interfere with the flow of fluid, so that the regulating valve realizes the full-path input and output of the regulating valve through the U-shaped valve plate 5.

In order to effectively seal the inlet 3 to prevent the regulating valve from leaking, the horizontal end of the U-shaped valve plate 5 is provided with a sealing ring 6, the sealing ring 6 is made of elastic material, and the sealing ring 6 is matched with the horizontal end of the U-shaped valve plate 5 to seal the inlet 3 in the cavity of the valve body 1.

Because the fluid pressure in the governing valve is great, need to make sealing washer 6 and U type valve plate 5 connect more stably, consequently, be close to 1 intracavity of valve body 5 horizontal ends of U type valve plate 5 of 3 departments of import and be provided with gland 7,

gland

7 and 5 horizontal end fixed connection of U type valve plate, and sealing washer 6 is located between 5 horizontal ends of U type valve plate and gland 7. Gland 7 also can be arc form, and gland 7 cooperation sealing washer 6 and U type 5 horizontal ends seal the import 3 in 1 intracavity of valve body. The valve plate and the gland 7 are of a split structure, so that the processing difficulty of the valve plate is reduced; the governing valve sets up sealing washer 6 and sealing layer 8, has guaranteed the leakproofness of governing valve.

In order to further improve the sealing performance of the regulating valve, a sealing layer 8 for sealing the valve shaft hole is arranged in the gap between the valve shaft 2 and the valve shaft hole, and the sealing layer 8 is made of filler.

The valve shaft 2 and the vertical end of the U-shaped valve plate 5 are in interference fit, and a bolt is arranged between the vertical ends of the valve shaft 2 and the U-shaped valve plate 5. The bolt can effectively prevent the valve shaft 2 and the U-shaped valve plate 5 from rotating relatively between the vertical ends, so that the regulating valve can be opened or closed stably.

Claims

1. A full-drift-diameter metal hard-sealing three-eccentric regulating valve comprises a valve body (1) and valve shafts (2) used in pairs, wherein the valve body (1) comprises an inlet (3), an outlet and a valve body (1) cavity, a pair of valve shaft holes embedded with bearings are arranged in the vertical direction of the valve body (1) cavity, the valve body (1) is rotationally connected with the valve shafts (2) through the bearings, and the valve shafts (2) extend into the valve body (1) cavity; the novel valve is characterized in that a U-shaped valve plate (5) is arranged between the valve shafts (2), two vertical ends of the U-shaped valve plate (5) are correspondingly and fixedly connected with the valve shafts (2), and the horizontal end of the U-shaped valve plate is used for sealing an inlet (3) in a cavity of the valve body (1).

2. The full-bore metal hard seal triple eccentric regulating valve according to claim 1, characterized in that a sealing ring (6) is arranged at the horizontal end of the U-shaped valve plate (5), the sealing ring (6) is made of elastic material, and the sealing ring (6) is matched with the horizontal end of the U-shaped valve plate (5) to seal the inlet (3) in the cavity of the valve body (1).

3. The full-bore metal hard seal triple eccentric regulating valve as claimed in claim 1, characterized in that a gland (7) is arranged at the horizontal end of the U-shaped valve plate (5) close to the inlet (3) in the cavity of the valve body (1), the gland (7) is fixedly connected with the horizontal end of the U-shaped valve plate (5), and the sealing ring (6) is positioned between the horizontal end of the U-shaped valve plate (5) and the gland (7).

4. A full-bore metal-hard-seal triple offset regulator valve according to claim 1, wherein a seal layer (8) for sealing the valve shaft hole is provided in the gap between the valve shaft (2) and the valve shaft hole, the seal layer (8) being made of a filler.

5. The full-bore metal hard seal triple offset regulating valve according to claim 4, characterized in that the valve shaft (2) is in interference fit with the vertical end of the U-shaped valve plate (5), and a bolt is arranged between the vertical ends of the valve shaft (2) and the U-shaped valve plate (5).