CN-224214774-U - Pressure relief valve and sealing equipment

Abstract

The utility model relates to the technical field of pressure relief valve equipment, in particular to a pressure relief valve and sealing equipment. The pressure relief valve comprises a valve body, a valve cover, a sealing element, an elastic element, a connecting element and a supporting element, wherein the valve body is provided with a through pressure relief channel, the inner wall, close to two ends, of the pressure relief channel is respectively provided with the supporting element and a bearing part, the valve cover can movably cover one end of the pressure relief channel, the sealing element can movably cover the other end of the pressure relief channel, the elastic element and the connecting element are arranged between the valve cover and the sealing element, the connecting element enables the valve cover and the sealing element to synchronously move in the axial direction of the pressure relief channel, one end of the elastic element is connected with the supporting element, and the other end of the elastic element is connected with the sealing element. The design of elastic component and connecting piece can realize that the pressure release passageway when pressure is too big opens fast, and sealing member and valve gap automatic re-setting when the pressure release is accomplished. When the pressure relief valve is not used for pressure relief, the valve cover, the sealing piece and the inner wall of the pressure relief channel enclose to form a sealed protection cavity, so that parts inside the pressure relief valve are effectively protected.

Inventors

• LI HONGJIE
• ZHU YU
• WU YUANJUN
• WANG HUAI

Assignees

• 深圳市富程威科技股份有限公司

Dates

Publication Date

20260508

Application Date

20250526

Claims (10)

1. 1. The pressure relief valve is characterized by comprising a valve body, a valve cover and a sealing element, wherein the valve body is provided with a through pressure relief channel, the inner walls of the pressure relief channel, which are close to two ends, are respectively provided with a supporting element and a bearing part, the valve cover can movably cover one end of the pressure relief channel on one side, which is far away from the bearing part, of the supporting element, and the sealing element can movably cover the other end of the pressure relief channel on one side, which is close to the supporting element, of the bearing part; The pressure relief valve further comprises an elastic piece and a connecting piece, wherein the elastic piece and the connecting piece are arranged between the valve cover and the sealing piece, one end of the connecting piece is connected with the sealing piece, the other end of the connecting piece penetrates through the supporting piece and is connected with the valve cover so that the valve cover and the sealing piece synchronously move in the axial direction of the pressure relief channel, one end of the elastic piece is abutted or connected with the supporting piece, and the other end of the elastic piece is abutted or connected with the sealing piece.
2. 2. The relief valve of claim 1, wherein a first seal groove is formed in a side of the bearing portion facing the support member, a first seal ring is installed in the first seal groove, and the seal member is attached to the first seal ring.
3. 3. The relief valve of claim 1, wherein a second seal groove is formed in a side of the bearing portion facing away from the support member, and a second seal ring is fixed in the second seal groove.
4. 4. The relief valve of claim 1, wherein a circumferential edge of the valve cover extends axially of the relief passage to form an annular cover that covers and seals an end opening of the relief passage.
5. 5. The pressure relief valve of claim 1, wherein said seal, said connector and said pressure relief passage are coaxially disposed.
6. 6. The pressure release valve according to claim 1, wherein the sealing member is provided with a first fixing structure matched with one end of the elastic member, the supporting member is provided with a second fixing structure matched with the other end of the elastic member, and two ends of the elastic member are respectively connected with or abutted against the first fixing structure and the second fixing structure.
7. 7. The pressure relief valve of claim 1, wherein said support member is provided with a hollowed-out structure.
8. 8. The pressure release valve according to claim 2, wherein a side of the bearing part facing the support element is provided with a ramp structure.
9. 9. The pressure relief valve of claim 1, wherein a protective sheet is disposed between the valve cover and the support member and is fixedly connected to the valve cover.
10. 10. The sealing equipment is characterized by comprising a sealing box and the pressure relief valve according to any one of claims 1-9, wherein a containing cavity is arranged in the sealing box, an opening which is communicated with the containing cavity and the outside is formed in the sealing box, and the pressure relief valve is arranged at the opening and seals the opening.

Description

Pressure relief valve and sealing equipment Technical Field The utility model relates to the technical field of pressure relief valve equipment, in particular to a pressure relief valve and sealing equipment. Background In the industrial field, the pressure relief valve is an important safety component of sealing equipment, and mainly aims to automatically relieve pressure when the pressure of the equipment exceeds a set value so as to ensure the safe operation of the equipment, and at present, when the pressure relief valve is not operated, the sealing performance inside a valve body has a certain defect, and when the pressure relief valve faces complex working conditions such as high temperature, high pressure, corrosive media and the like, the conventional sealing structure is difficult to continuously provide a reliable sealing effect, and the components are required to be frequently maintained and replaced, so that the maintenance cost and difficulty of the equipment are increased, the downtime of the equipment is prolonged, and the production efficiency is influenced. Therefore, the problem that the sealing performance of the internal valve body is insufficient when the existing pressure relief valve is not used for pressure relief is an important bottleneck restricting the overall performance improvement of sealing equipment and the safe and efficient operation of industrial production, and development of a novel pressure relief valve capable of effectively solving the problem is needed. Disclosure of utility model The utility model provides a pressure relief valve and sealing equipment, which are used for solving the technical problem that the sealing performance inside a valve body of the existing pressure relief valve is poor. The technical problem is solved by the pressure relief valve which comprises a valve body, a valve cover and a sealing element, wherein the valve body is provided with a through pressure relief channel, the inner walls of the pressure relief channel, which are close to two ends, are respectively provided with a supporting element and a bearing part, the valve cover can movably cover one end of the pressure relief channel at one side, which is far away from the bearing part, of the supporting element, the sealing element can movably cover the other end of the pressure relief channel at one side, which is close to the supporting element, of the bearing part, the pressure relief valve also comprises an elastic element and a connecting element, which are arranged between the valve cover and the sealing element, one end of the connecting element is connected with the sealing element, the other end of the connecting element penetrates through the supporting element and is connected with the valve cover so that the valve cover and the sealing element synchronously move in the axial direction of the pressure relief channel, and one end of the elastic element is in butt joint or connection with the supporting element, and the other end of the elastic element is in butt joint or connection with the sealing element. Preferably, a first sealing groove is formed in one side, facing the supporting piece, of the bearing part, a first sealing ring is installed in the first sealing groove, and the sealing piece is attached to the first sealing ring. Preferably, a second sealing groove is formed in one side, facing away from the supporting piece, of the bearing part, and a second sealing ring is fixed in the second sealing groove. Preferably, the circumferential edge of the valve cover extends along the axial direction of the pressure relief channel to form an annular cover part, and the annular cover part wraps and seals the end opening of the pressure relief channel. Preferably, the seal, the connection and the pressure relief channel are coaxially arranged. Preferably, the sealing member is provided with a first fixing structure matched with one end of the elastic member, the supporting member is provided with a second fixing structure matched with the other end of the elastic member, and two ends of the elastic member are respectively connected or abutted with the first fixing structure and the second fixing structure. Preferably, the support is provided with a hollowed-out structure. Preferably, the side of the carrier facing the support is provided with a ramp structure. Preferably, a protection sheet is arranged between the valve cover and the support piece, and the protection sheet is fixedly connected with the valve cover. The utility model provides a sealing device which comprises a sealing box and a pressure relief valve, wherein a containing cavity is arranged in the sealing box, an opening which is communicated with the containing cavity and the outside is formed in the sealing box, and the pressure relief valve is arranged at the opening and seals the opening. Compared with the prior art, the pressure release valve and the sealing equipment provided by the utility model have the