CN219529928U

CN219529928U - Anti-pollution relief valve

Info

Publication number: CN219529928U
Application number: CN202320754887.8U
Authority: CN
Inventors: 党美芝
Original assignee: Shenyang Xinyulin Petroleum Machinery Co ltd
Current assignee: Shenyang Xinyulin Petroleum Machinery Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-08-15
Anticipated expiration: 2033-04-07

Abstract

The utility model discloses an anti-pollution safety valve, which comprises a valve seat, wherein a valve core is embedded in an inner cavity of the valve seat, a first valve block is embedded in the valve core, a connecting seat is fixedly assembled at the top of the valve seat through threads, a pressure component is embedded in the connecting seat, a pressure release seat is fixedly assembled on the side wall of the valve seat, a second valve block penetrating into the valve seat is integrally formed on the side wall of the pressure release seat, a pressure release cavity is formed on the side wall of the pressure release seat, a pressure release hole communicated with the pressure release cavity is formed on the side wall of the second valve block, and a shearing mechanism is arranged between the first valve block and the second valve block. After the pressure relief hole is subjected to pressure relief, dirt left at the pressure relief hole is cut off through a first shearing part arranged in the first valve block and a second shearing part positioned in the aperture of the pressure relief hole, and the dirt is pushed away or flows out of the pressure relief hole, so that the dirt cannot influence the sealing of the first valve block to the pressure relief hole, and the purpose of resisting dirt is achieved.

Description

Anti-pollution relief valve

Technical Field

The utility model relates to the technical field of safety valves, in particular to an anti-pollution safety valve.

Background

The safety valve is an opening and closing piece and is in a normally closed state under the action of external force. A special valve for preventing the medium pressure in the pipe or the device from exceeding the prescribed value by discharging the medium to the outside of the system when the medium pressure in the device or the pipe rises above the prescribed value. The common valve port structure of the existing safety valve is conical line sealing or direct-acting flat plate sealing, dirt can remain at the valve port after the pressure relief operation is finished, and if the dirt remains, the sealing of the valve block to the pressure relief hole can be influenced, so that leakage or sealing performance failure is caused. To this end, we propose an anti-fouling safety valve.

Disclosure of Invention

The present utility model is directed to an anti-fouling safety valve, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an anti-pollution relief valve, includes the disk seat, the case is installed in the inner chamber embedding of disk seat, first valve piece is installed to the embedding in the case, the top of disk seat is through screw thread fixed mounting has the connecting seat, the pressure subassembly is installed to the embedding in the connecting seat, the lateral wall fixed mounting of disk seat has the pressure release seat, the lateral wall integrated into one piece of pressure release seat has the second valve piece that runs through to in the disk seat, the relief cavity has been seted up to the lateral wall of pressure release seat, the relief hole that is linked together with the relief cavity has been seted up to the lateral wall of second valve piece, be equipped with shearing mechanism between first valve piece and the second valve piece.

Preferably, the pressure assembly comprises a pressure spring, the pressure spring is embedded and installed in an inner cavity of the connecting seat, the top end of the pressure spring is fixedly connected with a sealing plate, the bottom end of the pressure spring is fixedly connected with a sealing block, and the sealing block is attached to the top of the valve core.

Preferably, the diameter of the first valve block is larger than the diameter of the pressure relief hole.

Preferably, the shearing mechanism comprises a first shearing part and a second shearing part, the first shearing part is arranged on the lower side wall of the first valve block, and the second shearing part is arranged at the inner diameter of the pressure relief valve.

Preferably, the outer side wall of the second valve block is sleeved with a sealing ring.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides an anti-pollution relief valve, lateral wall fixed connection at the disk seat is used for carrying out the pressure release seat of pressure release to the disk seat inner chamber, the pressure that produces the case through pressure component, the first valve piece of embedded installation in making the case seals the pressure release hole in the second valve piece, accomplish the pressure release in the pressure release hole after, through setting up the first shearing part in first valve piece and the second shearing part that is located in the pressure release hole aperture to the filth of remaining in pressure release hole department cut off, push away the filth or flow the pressure release hole, thereby make the filth can not influence the closure of first valve piece to the pressure release hole, with this purpose of achieving the anti-pollution.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a schematic structural view of the present utility model.

Fig. 3 is a detail view at a in fig. 2.

Fig. 4 is a schematic structural diagram of the pressure relief seat of the present utility model.

Fig. 5 is a schematic structural view of a first valve block according to the present utility model.

In the figure: 1. valve seat, 2, case, 3, first valve piece, 4, connecting seat, 5, pressure subassembly, 51, pressure spring, 52, closing plate, 53, sealing block, 6, fixing bolt, 7, pressure release seat, 8, pressure release chamber, 9, second valve piece, 10, pressure release hole, 11, shearing mechanism, 111, first shearing portion, 112, second shearing portion, 12, sealing washer.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1, 2, 3 and 4, the present utility model provides a technical solution: the utility model provides an anti-pollution relief valve, including disk seat 1, disk seat 1's bottom is used for being connected with the pipeline that needs the protection, disk seat 1's inner chamber sliding connection has case 2, first valve piece 3 is installed in the inner chamber embedding of case 2, disk seat 1's top is installed through the screw thread embedding connecting seat 4, disk seat 4's inner chamber embedding is installed the pressure subassembly 5 that applys pressure to case 2, disk seat 1's lateral wall is equipped with pressure release seat 7 through fixing bolt 6 fixed mounting, pressure release chamber 8 has been seted up to pressure release seat 7's inner chamber, and pressure release seat 7's lateral wall integrated into one piece has the second valve piece 9 that runs through to valve body 1 inner chamber, pressure release chamber 8 is linked together is seted up to the center department of second valve piece 9.

As shown in fig. 2, the pressure component 5 generates pressure to the valve core 2, so that the first valve block 3 embedded and installed in the valve core 2 keeps sealing the pressure relief hole 10, after the pressure of a connecting pipeline connected to the bottom of the valve seat 1 is overlarge, the valve core 2 drives the first valve block 3 to move upwards, the first valve block 3 does not seal the pressure relief hole 10 any more, medium is discharged outwards through the pressure relief hole 10 and the pressure relief cavity 8 communicated with the pressure relief hole, and the first valve block 3 and the second valve block 9 are formed by casting hard alloy.

As shown in fig. 3 and 4, a first shearing portion 111 is provided at the bottom of the first valve block 3, a second shearing portion 112 is provided at the aperture of the pressure release hole 10 in the second valve block 9, the first shearing portion 111 and the second shearing portion 112 constitute a shearing mechanism 11, and the first shearing portion 111 and the second shearing portion 112 are sharp inclined sides.

Through the shearing mechanism 11 that sets up between first valve piece 3 and second valve piece 9, make first valve piece 3 and second valve piece 9 in the in-process of mutual displacement, through sharp first shearing portion 111 and second shearing portion 112 dirt that is located pressure release hole 10 department cuts off, pushes away pressure release hole 10 or follow pressure release hole 10 department with the filth to make after accomplishing the pressure release operation filth can not influence the closure of first valve piece 3 to pressure release hole 10 department, guarantee the closure of first valve piece 3 to pressure release hole 10 department in the second valve piece 9, reach the dirt-resistant purpose.

As shown in fig. 2, the pressure assembly 5 comprises a pressure spring 51, the pressure spring 51 is embedded and installed in the inner cavity of the connecting seat 4, the top of the pressure spring 51 is fixedly connected with a sealing plate 52, the bottom of the pressure spring 51 is fixedly connected with a sealing block 53, the sealing block 53 is attached to the top of the valve core 2, the pressure spring 51 is used for applying pressure to the sealing block 52 and the valve core 2, and the second valve block 9 assembled in the valve core 2 is guaranteed to seal the pressure relief hole 10.

As shown in fig. 2 and 5, in order to ensure the air tightness of the connection between the second valve block 9 and the valve seat 1, a sealing ring 12 is sleeved on the outer side wall of the second valve block 9.

Working principle: in the using process, all parts of the utility model are assembled and fixed, then the bottom of the valve body 1 is communicated with a pipeline needing to be subjected to pressure relief protection, the pressure relief cavity 8 on the side wall of the pressure relief seat 10 is communicated with an external liquid discharge pipe, when the pressure in the pipeline needing to be protected exceeds the pressure value of the pressure spring 51 excessively, the medium in the valve body 1 pushes the first valve block 3 to move upwards, so that the pressure relief hole 10 is communicated with the inner cavity of the valve body 1, the medium is discharged outwards through the pressure relief hole 10 to finish pressure relief, and then after the pressure relief is finished, dirt exists in the discharged medium, if the dirt exists in the pressure relief hole 10, the first valve block 3 is difficult to seal the pressure relief hole 10, at this time, in the process of moving down the first valve block 3, the dirt is cut off through the first shearing part 111 arranged on the side wall at the bottom of the pressure relief hole 10 and the second shearing part 112 positioned in the aperture of the pressure relief hole 10, and the first valve block 3 is pushed away or flows out of the pressure relief hole 10, so that the first valve block 3 completely seals and shields the pressure relief hole 10.

Claims

1. An anti-fouling safety valve comprising a valve seat (1), characterized in that: the inner chamber embedding of disk seat (1) is installed case (2), first valve piece (3) are installed to the embedding in case (2), the top of disk seat (1) is equipped with connecting seat (4) through screw thread fixed mounting, pressure subassembly (5) are installed to the embedding in connecting seat (4), the lateral wall of disk seat (1) is fixed to be equipped with pressure release seat (7), the lateral wall integrated into one piece of pressure release seat (7) has second valve piece (9) that run through in disk seat (1), pressure release chamber (8) have been seted up to the lateral wall of pressure release seat (7), relief hole (10) that are linked together with pressure release chamber (8) have been seted up to the lateral wall of second valve piece (9), be equipped with shear mechanism (11) between first valve piece (3) and second valve piece (9).

2. An anti-fouling safety valve according to claim 1, wherein: the pressure assembly (5) comprises a pressure spring (51), the pressure spring (51) is embedded and installed in an inner cavity of the connecting seat (4), a sealing plate (52) is fixedly connected to the top end of the pressure spring (51), a sealing block (53) is fixedly connected to the bottom end of the pressure spring (51), and the sealing block (53) is attached to the top of the valve core (2).

3. An anti-fouling safety valve according to claim 1, wherein: the diameter of the first valve block (3) is larger than the aperture of the pressure relief hole (10).

4. An anti-fouling safety valve according to claim 1, wherein: the shearing mechanism (11) comprises a first shearing part (111) and a second shearing part (112), the first shearing part (111) is arranged on the lower side wall of the first valve block (3), and the second shearing part (112) is arranged at the inner diameter of the pressure relief hole (10).

5. An anti-fouling safety valve according to claim 1, wherein: and a sealing ring (12) is sleeved on the outer side wall of the second valve block (9).