Water hammer release valve
By designing buffer parts and pressure relief springs in the water hammer discharge valve, the inclined setting and rubber pads are used to buffer the water flow impact, the damage caused by the water hammer effect is solved, the service life of the drain valve is improved and the pipeline damage is prevented. .
Patent Information
- Application Number
- CN202420919606.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The water hammer effect leads to the damage of the water hammer discharge valve by high-pressure water flow and the problems of the pipeline breakage and deformation.
A water hammer discharge valve is designed, including a valve body, a guide sleeve, a piston, a buffer member and a pressure relief spring. The buffer member buffers the water flow impact through an inclined setting and a rubber pad to reduce the impact of the water hammer effect on the valve body.
It effectively reduces the damage to the drain valve by the water hammer effect, improves its service life, and quickly protects the water flow when it impacts, preventing the pipeline from rupturing and deforming.
Smart Images
Figure CN222316123U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valves, in particular to a water hammer relief valve. Background Art
[0002] A water hammer relief valve is a device used to reduce pressure fluctuations in a pipeline system. It is usually installed on the outlet pipe of a water pump. It consists of a main valve, a high-pressure hydraulic pilot valve, a guide tube and other components. It has the functions of hydraulic automatic control and high-pressure unconditional opening to relieve water hammer.
[0003] The working principle of the water hammer relief valve is: when the pressure in the pipeline exceeds the set value, the high-pressure hydraulic pilot valve will automatically open, causing the main valve to open and discharge the excessive pressure to the atmosphere, thereby protecting the pipeline system from pressure fluctuations; when the pressure subsides, the main valve will slowly close to prevent the occurrence of water hammer caused by its own valve closing;
[0004] When the water hammer relief valve is installed on the high-pressure water pipe, the high-pressure water flow will damage the water hammer relief valve due to the water hammer effect when the relief valve is in use, and may also cause the pipe to rupture or deform. Utility Model Content
[0005] The purpose of the utility model is to provide a water hammer relief valve to solve the defects mentioned in the above background technology.
[0006] In order to achieve the above object, a water hammer relief valve is provided, comprising a valve body, a guide sleeve is installed on the upper side of the inner part of the valve body, and a piston is movably installed inside the guide sleeve, and a valve cover is screwed and fixed on the top of the valve body, a water inlet pipe is fixedly installed on one end of the valve body, and a water outlet pipe is fixedly installed on the other end of the valve body, and a first buffer member and a second buffer member are respectively installed on the water inlet pipe;
[0007] The first buffer component and the second buffer component have the same structure. The second buffer component includes a water collecting cylinder screwed on the water inlet pipe, and the bottom of the water collecting cylinder is fixed to the water inlet cylinder. At the same time, a buffer seat is movably installed inside the water collecting cylinder, and a force-bearing column is fixedly installed on the back of the buffer seat. A 30° inclined surface is set at the bottom of the water inlet cylinder.
[0008] Preferably, the first buffer component and the second buffer component are symmetrical structures with respect to the water inlet pipe, and the first buffer component and the second buffer component are both inclined.
[0009] Preferably, the angle between the water outlet pipe and the water collecting cylinder is 45°, and the buffer seat is slidably arranged on the inner wall surface of the water collecting cylinder, and a rubber pad is fixedly arranged on the outer side of the buffer seat.
[0010] Preferably, the axial cross-section of the buffer seat and the water collecting barrel is a concentric circle structure, and an arc-shaped buffer groove is provided on the surface of the buffer seat.
[0011] Preferably, one end of the force-bearing column away from the buffer seat is welded and fixed to the connecting seat, and the surface of the buffer seat is fixed to the pressure relief spring, and at the same time, one end of the pressure relief spring away from the connecting seat is fixed inside the guide seat.
[0012] Preferably, the connecting seat is a "cross"-shaped structure made of metal material, and the connecting seat is slidably arranged inside the guide opening opened on the guide seat, and the connecting seat is elastically connected inside the guide seat through the guide seat.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The valve body is installed on the high-pressure water pipe. When the water in the high-pressure water pipe impacts the first buffer member and the second buffer member, the water pressure impacting the discharge valve can be buffered by the first buffer member and the second buffer member, thereby reducing the influence of the water hammer effect on the discharge valve and increasing the service life of the discharge valve.
[0015] A 30° inclined surface is arranged at the bottom of the water inlet cylinder. The setting of the inclined surface can reduce the time for the water inlet cylinder and the water collecting cylinder to be filled with water, can buffer the impact force of the water flow at the first moment when the water hammer effect occurs, and quickly protect the valve body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the second buffer member of the utility model;
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the guide seat of the utility model;
[0019] Figure 4 This is a schematic diagram of the structural buffer seat and its connection structure of the utility model.
[0020] Numbers in the figure: 1, valve body; 2, guide sleeve; 3, piston; 4, valve cover; 5, water inlet pipe; 6, water outlet pipe; 7, first buffer member; 8, second buffer member; 80, water inlet cylinder; 81, inclined surface; 82, water collecting cylinder; 83, buffer seat; 84, buffer groove; 85, force column; 86, connecting seat; 87, guide port; 88, guide seat; 89, pressure relief spring. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-4 The utility model provides a water hammer relief valve, comprising a valve body 1, a guide sleeve 2 is installed on the upper side of the valve body 1, and a piston 3 is movably installed inside the guide sleeve 2, and a valve cover 4 is screwed and fixed on the top of the valve body 1, an inlet pipe 5 is fixedly installed at one end of the valve body 1, and a water outlet pipe 6 is fixedly installed at the other end of the valve body 1, and a first buffer 7 and a second buffer 8 are respectively installed on the inlet pipe 5;
[0023] The first buffer 7 and the second buffer 8 have the same structure. The second buffer 8 includes a water collecting cylinder 82 which is screwed and fixed on the water inlet pipe 5, and the bottom of the water collecting cylinder 82 is fixed to the water inlet cylinder 80. At the same time, a buffer seat 83 is movably installed inside the water collecting cylinder 82, and a force-bearing column 85 is fixedly installed on the back of the buffer seat 83. A slope 81 with an inclination of 30° is set at the bottom of the water inlet cylinder 80.
[0024] Working principle: When the valve body 1 is in use, it is installed on the high-pressure water pipe. When the water in the high-pressure water pipe impacts the first buffer member 7 and the second buffer member 8, the first buffer member 7 and the second buffer member 8 can buffer the water pressure impacting the discharge valve, thereby reducing the impact of the water hammer effect on the discharge valve and increasing the service life of the discharge valve.
[0025] As a preferred embodiment, the first buffer member 7 and the second buffer member 8 are symmetrical structures with respect to the water inlet pipe 5, and the first buffer member 7 and the second buffer member 8 are both inclined.
[0026] As a preferred embodiment, the angle between the water outlet pipe 6 and the water collecting cylinder 82 is 45°, and the buffer seat 83 is slidably arranged on the inner wall surface of the water collecting cylinder 82, and a rubber pad is fixedly arranged on the outer side of the buffer seat 83.
[0027] The water flow impacts into the water inlet cylinder 80 and then impacts the buffer groove 84, so that the buffer seat 83 compresses the pressure relief spring 89 through the force-bearing column 85 and the connecting seat 86. The elastic deformation of the pressure relief spring 89 buffers the impact force of the water flow on the valve body 1, thereby protecting the valve body 1.
[0028] As a preferred embodiment, the axial cross-section of the buffer seat 83 and the water collecting tube 82 is a concentric circle structure, and an arc-shaped buffer groove 84 is provided on the surface of the buffer seat 83 .
[0029] One end of the force-bearing column 85 away from the buffer seat 83 is welded and fixed to the connecting seat 86 , and the surface of the buffer seat 83 is fixed to the pressure relief spring 89 , while one end of the pressure relief spring 89 away from the connecting seat 86 is fixed inside the guide seat 88 .
[0030] When the buffer seat 83 is subjected to force and moves, the connecting seat 86 at the bottom thereof is movably arranged at the guide opening 87, which can limit and guide the buffer seat 83 during movement, thereby ensuring the stability of the buffer seat 83 during movement.
[0031] As a preferred embodiment, the connecting seat 86 is a "cross" structure made of metal material, and the connecting seat 86 is slidably set inside the guide opening 87 opened on the guide seat 88. At the same time, the connecting seat 86 is elastically connected inside the guide seat 88 through the guide seat 88.
[0032] A slope 81 with a 30° inclination is set at the bottom of the water inlet cylinder 80. The setting of the slope 81 can reduce the time for the water inlet cylinder 80 and the water collecting cylinder 82 to be filled with water, and can buffer the impact force of the water flow at the first time when the water hammer effect occurs, and quickly protect the valve body 1.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A water hammer relief valve, comprising a valve body (1), characterized in that: A guide sleeve (2) is installed on the upper inner side of the valve body (1), and a piston (3) is movably installed inside the guide sleeve (2); a valve cover (4) is screwed and fixed on the top of the valve body (1); a water inlet pipe (5) is fixedly installed on one end of the valve body (1), and a water outlet pipe (6) is fixedly installed on the other end of the valve body (1); and a first buffer (7) and a second buffer (8) are respectively installed on the water inlet pipe (5); The first buffer member (7) and the second buffer member (8) have the same structure. The second buffer member (8) comprises a water collecting cylinder (82) which is screwed and fixed on the water inlet pipe (5). The bottom of the water collecting cylinder (82) is fixed to the water inlet cylinder (80). At the same time, a buffer seat (83) is movably installed inside the water collecting cylinder (82), and a load-bearing column (85) is fixedly installed on the back of the buffer seat (83). A 30° inclined surface (81) is provided at the bottom of the water inlet cylinder (80).
2. A water hammer relief valve according to claim 1, characterized in that: The first buffer component (7) and the second buffer component (8) are symmetrical structures with respect to the water inlet pipe (5), and the first buffer component (7) and the second buffer component (8) are both arranged at an inclination.
3. A water hammer relief valve according to claim 1, characterized in that: The angle between the water outlet pipe (6) and the water collecting cylinder (82) is 45°, and the buffer seat (83) is slidably arranged on the inner wall surface of the water collecting cylinder (82), and a rubber pad is fixedly arranged on the outer side of the buffer seat (83).
4. A water hammer relief valve according to claim 1, characterized in that: The axial cross-section of the buffer seat (83) and the water collecting cylinder (82) is a concentric circle structure, and an arc-shaped buffer groove (84) is provided on the surface of the buffer seat (83).
5. A water hammer relief valve according to claim 1, characterized in that: One end of the force-bearing column (85) away from the buffer seat (83) is welded and fixed to the connecting seat (86), and the surface of the buffer seat (83) is fixed to the pressure relief spring (89), while one end of the pressure relief spring (89) away from the connecting seat (86) is fixed inside the guide seat (88).
6. A water hammer relief valve according to claim 5, characterized in that: The connecting seat (86) is a "cross"-shaped structure made of metal material, and the connecting seat (86) is slidably arranged inside a guide opening (87) opened on the guide seat (88), and the connecting seat (86) is elastically connected inside the guide seat (88) through the guide seat (88).