CN221257794U

CN221257794U - Durable pressure relief valve

Info

Publication number: CN221257794U
Application number: CN202323043125.6U
Authority: CN
Inventors: 傅煌圳; 钱春江; 傅周冰
Original assignee: Zhejiang Haolu Thermal Energy Technology Co ltd
Current assignee: Zhejiang Haolu Thermal Energy Technology Co ltd
Priority date: 2023-11-10
Filing date: 2023-11-10
Publication date: 2024-07-02
Anticipated expiration: 2033-11-10

Abstract

The utility model provides a durable pressure release valve which comprises a valve seat, a pull rod, a spring, a pressure regulating cap, a sealing seat and a handle which are sequentially connected from inside to outside, wherein the top end of the valve seat is embedded with a gasket, the top end of the pull rod is embedded with the valve seat and sequentially penetrates through the spring, the pressure regulating cap, the sealing seat and the handle, a pressure release embedding piece is arranged between the valve seat and a pressure release opening, and a sealing ring is arranged between the pressure release embedding piece and the pressure release opening. The utility model has the advantages that: structural design is reasonable, guarantees that the pressure release is sealed stable, and the sealing washer is not fragile, and sealed department is difficult for remaining impurity, foreign matter, and the holistic life of extension device saves maintenance and replacement cost.

Description

Durable pressure relief valve

Technical Field

The utility model relates to the technical field of electric water heaters, in particular to a durable pressure relief valve.

Background

The pressure release valve of the electric water heater comprises an inner pressure release valve and an outer pressure release valve. Aiming at external pressure relief, the pressure of the inner container of the electric water heater can be ensured not to be higher than a safety set value, and when the pressure of the inner container is higher than the safety set value, part of water flow in the inner container is led out through the pressure relief valve, so that the pressure of the inner container of the electric water heater is regulated. Generally, a sealing ring is arranged between the pressure relief opening and the pressure relief valve group, and the sealing ring is compressed and deformed according to the magnitude of back pressure after pressure relief. If the back pressure is too high, the sealing ring is easy to be crushed and damaged by overpressure and even irreversible flattening, so that the problem that the pressure relief effect is poor and the sealing ring needs to be replaced frequently is caused.

Disclosure of utility model

The utility model aims to provide a durable pressure relief valve which has reasonable structural design, a sealing ring is not easy to damage, impurities are not easy to remain at a sealing part, and the cost of manpower and material resources is saved.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

A durable pressure release valve comprises a valve seat, a pull rod, a spring, a pressure regulating cap, a sealing seat and a handle which are sequentially connected from inside to outside, wherein the top end of the valve seat is embedded with a gasket, the top end of the pull rod is embedded with the valve seat and sequentially penetrates through the spring, the pressure regulating cap, the sealing seat and the handle, a pressure release embedding piece is arranged between the valve seat and a pressure release opening, and a sealing ring is arranged between the pressure release embedding piece and the pressure release opening.

Further, a water through hole is formed in the pressure relief embedding piece, and the inner wall of the water through hole is of a multi-convex-edge or multi-groove structure.

Further, the pressure relief scarf joint piece comprises a circular pipe and a convex ring which are in an integrated structure, and an annular groove for accommodating the sealing ring is formed in the lower side of the convex ring.

Further, a sealing convex ring is arranged between the pressure relief scarf joint piece and the valve seat gasket.

Further, the sealing convex ring is a convex ring which is arranged at the top of the convex ring and is abutted against the valve seat gasket.

Further, the sealing convex ring is a convex ring which is arranged at the top of the valve seat gasket and is abutted against the convex ring.

Compared with the prior art, the utility model has the following advantages:

The durable pressure relief valve has reasonable structural design, ensures stable pressure relief seal, ensures that the sealing ring is not easy to damage, ensures that impurities and foreign matters are not easy to remain at the sealing part, prolongs the service life of the whole device and saves maintenance and replacement cost.

Drawings

Fig. 1 is a schematic view showing an internal sectional structure of embodiment 1 of the present utility model.

Fig. 2 is a schematic view of a pressure relief insert according to embodiment 1 of the present utility model.

Fig. 3 is a schematic cross-sectional view of a pressure relief insert according to embodiment 1 of the present utility model.

Fig. 4 is a schematic view of the pressure release scarf joint of the embodiment 1 of the utility model.

Fig. 5 is a schematic view showing the internal cross-sectional structure of embodiment 2 of the present utility model.

Fig. 6 is a schematic cross-sectional view of a pressure relief insert according to embodiment 2 of the present utility model.

Fig. 7 is a schematic cross-sectional view of a valve seat gasket according to embodiment 2 of the present utility model.

Reference numerals: 1. a valve seat; 2. a pull rod; 3. a spring; 4. a pressure regulating cap; 5. a sealing seat; 6. a handle; 7. a gasket; 8. a pressure relief scarf joint; 81. a round tube; 82. a convex ring; 83. an annular groove; 9. and (3) sealing rings.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1, 2, 3 and 4, a durable pressure release valve comprises a valve seat 1, a pull rod 2, a spring 3, a pressure regulating cap 4, a sealing seat 5 and a handle 6 which are sequentially connected from inside to outside, wherein the top end of the valve seat 1 is embedded with a gasket 7, the top end of the pull rod 2 is embedded with the valve seat 1 and sequentially penetrates through the spring 3, the pressure regulating cap 4, the sealing seat 5 and the handle 6, a pressure release embedding piece 8 is arranged between the valve seat 1 and a pressure release opening, and a sealing ring 9 is arranged between the pressure release embedding piece 8 and the pressure release opening. The pressure relief scarf joint 8 comprises a circular tube 81 and a convex ring 82 which are integrally formed, and an annular groove 83 for accommodating the sealing ring 9 is formed in the lower side of the convex ring 82. By the arrangement, the compression deformation of the sealing ring 9 can be effectively controlled during pressure relief sealing, so that the failure of the pressure relief valve caused by overpressure or insufficient compression of the sealing ring 9 is avoided, and the service life of the sealing ring 9 is further prolonged. Specifically, the sealing ring 9 made of rubber materials can be compressed and deformed to different degrees according to different pressures, if the pressure is too large, the sealing ring 9 is easy to be compressed and deformed to be in an irreversible flattening shape, so that the pressure release total path in the valve body is increased, the handle 6 at the outermost end of the valve body is extremely easy to sink, pressure release parts in the valve body are mutually overlapped, the action of a spring force is influenced, and the pressure release is influenced; the sealing ring 9 is arranged in the annular groove 83 of the convex ring 82 of the pressure relief embedding piece 8, the sealing ring 9 is slightly higher than the groove wall of the annular groove 83 and props against the pressure relief opening, and the groove wall of the annular groove 83 is protected from being damaged by overpressure during compression sealing, so that the service life of the pressure relief embedding piece is prolonged, pressure relief parts in a valve body are protected, and normal and stable pressure relief is ensured.

A sealing convex ring is arranged between the pressure relief scarf joint 8 and the gasket 7 of the valve seat 1, and the sealing convex ring is a convex ring which is arranged at the top of the convex ring 82 and is abutted against the gasket 7 of the valve seat 1. That is, the pressure relief scarf joint 8 and the valve seat 1 gasket 7 are sealed only through a circle of convex ring, so that the sealing contact area between the pressure relief scarf joint 8 and the valve seat 1 gasket is greatly reduced while the sealing effect is ensured, impurities and foreign matters in water flow media are difficult to leave at the sealing part, and the service life of the sealing part is effectively prolonged.

The pressure relief scarf joint 8 is internally provided with a water through hole, and the inner wall of the water through hole is of a multi-convex-edge-shaped or multi-groove-shaped structure, so that the pressure relief scarf joint 8 can be effectively screwed and assembled at a pressure relief opening.

Example 2

As shown in fig. 5, 6 and 7, on the basis of embodiment 1, a sealing convex ring is arranged between the pressure relief engagement member and the valve seat gasket, and the sealing convex ring is a convex ring which is arranged at the top of the gasket 7 of the valve seat 1 and is abutted against the convex ring 82.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. A durable pressure release valve comprises a valve seat, a pull rod, a spring, a pressure regulating cap, a sealing seat and a handle which are sequentially connected from inside to outside, wherein the top end of the valve seat is embedded with a gasket, and the top end of the pull rod is embedded with the valve seat and sequentially connected with the spring, the pressure regulating cap, the sealing seat and the handle in a penetrating manner, and the durable pressure release valve is characterized in that: and a pressure relief embedding piece is arranged between the valve seat and the pressure relief opening, and a sealing ring is arranged between the pressure relief embedding piece and the pressure relief opening.

2. A durable pressure relief valve according to claim 1, wherein: the pressure relief scarf joint piece is internally provided with a water through hole, and the inner wall of the water through hole is in a multi-convex-edge or multi-groove structure.

3. A durable pressure relief valve according to claim 2, characterized in that: the pressure relief scarf joint piece comprises a circular pipe and a convex ring which are integrated into a whole, and an annular groove for accommodating the sealing ring is formed in the lower side of the convex ring.

4. A durable pressure relief valve according to claim 3, wherein: and a sealing convex ring is arranged between the pressure relief scarf joint piece and the valve seat gasket.

5. The durable pressure relief valve according to claim 4, wherein: the sealing convex ring is a convex ring which is arranged at the top of the convex ring and is abutted against the valve seat gasket.

6. The durable pressure relief valve according to claim 4, wherein: the sealing convex ring is a convex ring which is arranged at the top of the valve seat gasket and is abutted against the convex ring.