Water hammer eliminating device convenient to maintain
A water hammer elimination device, consisting of a buffer chamber, a spiral guide plate, and a pressure sensor, is installed in the pipeline system. The spiral guide plate slows down the water flow, and the pressure sensor controls the rapid response of the pressure relief valve, thus solving the problem of slow response of the pressure relief valve and achieving timely elimination of water hammer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA HUBEI ENG CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-21
AI Technical Summary
Existing pressure relief valves cannot eliminate water hammer in a timely manner, resulting in the inability to effectively prevent water hammer in the pipeline system.
Design a water hammer elimination device including a buffer chamber, a spiral guide plate, a pressure sensor, and a pressure relief valve. The spiral guide plate slows down the water flow, and the pressure sensor detects the pressure signal and quickly opens the pressure relief valve to achieve rapid pressure relief.
It effectively eliminates water hammer, protects the pipeline system, and avoids damage caused by slow response of the pressure relief valve.
Smart Images
Figure CN224150439U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluid engineering technology, and in particular to a water hammer elimination device that is easy to maintain. Background Technology
[0002] Water hammer elimination devices can effectively eliminate irregular water hammer and surge oscillations that may occur in various fluid transmission systems without stopping fluid flow, thereby eliminating destructive shock waves and achieving the purpose of protection.
[0003] Pressure relief valves are usually installed in pipelines, but they are slow to react and cannot eliminate water hammer in time. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a water hammer elimination device that is easy to maintain, thereby solving the problem that the pressure relief valve cannot eliminate water hammer in a timely manner.
[0005] To solve the above-mentioned technical problems, this utility model provides a water hammer elimination device that is easy to maintain, including a buffer chamber, a pressure relief valve disposed on one side of the buffer chamber, the buffer chamber having an inlet and an outlet, a spiral guide plate disposed on the water flow channel of the inlet and outlet, and a pressure sensor disposed within the buffer chamber.
[0006] In the preferred embodiment, the spiral angle of the spiral guide plate is 30°-45°; the spiral guide plate is provided with turbulence protrusions, which are arranged in an alternating pattern.
[0007] In a preferred embodiment, a connector is provided on one side of the buffer cavity, an airbag is provided on one side of the connector, and a buffer device is provided on the outside of the airbag.
[0008] In a preferred embodiment, the buffer device includes a buffer seat, a fixed cavity surrounding the airbag on the buffer seat, a pressure plate on one side of the fixed cavity, a movable rod on one side of the pressure plate, and a first spring on the movable rod between the pressure plate and the fixed cavity.
[0009] In the preferred embodiment, an air tube is also connected to one side of the airbag, and a pressure relief valve is provided on the air tube.
[0010] In a preferred embodiment, a support plate is provided on the other side of the movable rod, and a second spring is provided between the support plate and the buffer seat.
[0011] The beneficial effects of this utility model are as follows: When in use, this device is installed in series in the pipeline system. When water hammer occurs, the high-pressure water flow first enters the buffer cavity and is decelerated by the spiral guide plate. When the pressure sensor detects that the water flow pressure exceeds the preset threshold signal, the system immediately controls the opening of the pressure relief valve to achieve a rapid response of the pressure relief valve, thereby eliminating water hammer. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0013] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model;
[0014] Figure 2 This is a structural diagram of the location of the turbulence protrusion in an embodiment of this utility model.
[0015] Reference numerals: Buffer chamber 11; Inlet 111; Outlet 112; Pressure relief valve 12; Spiral guide plate 13; Pressure sensor 14; Turbulence protrusion 15; Connector 16; Airbag 17; Air pipe 18; Pressure reducing valve 19; Buffer seat 21; Fixed chamber 22; Pressure plate 23; Movable rod 24; First spring 25; Support plate 26; Second spring 27. Detailed Implementation
[0016] Please see Figure 1-2 As shown, the present application provides a technical solution: a water hammer elimination device that is easy to maintain, including a buffer cavity 11, a pressure relief valve 12 disposed on one side of the buffer cavity 11, the buffer cavity 11 having an inlet 111 and an outlet 112, a spiral guide plate 13 disposed on the water flow channel of the inlet 111 and the outlet 112, and a pressure sensor 14 disposed inside the buffer cavity 11.
[0017] The buffer chamber 11 is generally made of corrosion-resistant steel, such as stainless steel, which has both pressure resistance and corrosion resistance.
[0018] In use, this device is installed in series in the pipeline system. When water hammer occurs, the high-pressure water flow first enters the buffer chamber 11, is decelerated by the spiral guide plate 13, and after the pressure sensor 14 detects that the pressure signal of the water flow exceeds the preset pressure threshold, the system immediately controls the opening of the pressure relief valve 12 to achieve a rapid response of the pressure relief valve 12, thereby eliminating water hammer.
[0019] In a preferred embodiment, the spiral guide plate 13 has a spiral angle of 30°-45°; the spiral guide plate 13 is provided with turbulence protrusions 15, which are arranged in an alternating pattern. The turbulence protrusions 15 can enhance the turbulence effect and increase the water flow resistance.
[0020] The spiral guide vane 13 has two sections that rotate in opposite directions, which enhances the turbulence effect. The staggered arrangement of the protrusions 15 means that three adjacent turbulence protrusions 15 are not arranged in a straight line.
[0021] In a preferred embodiment, a connector 16 is provided on one side of the buffer cavity 11, an airbag 17 is provided on one side of the connector 16, and a buffer device is provided on the outside of the airbag 17.
[0022] Connector 16 is a regular water pipe connector, and airbag 17 is placed on one side of the connector and comes into contact with the liquid in the buffer chamber 11.
[0023] In a preferred embodiment, the buffer device includes a buffer seat 21, a fixed cavity 22 surrounding the airbag 17 is provided on the buffer seat 21, a pressure plate 23 is provided on one side of the fixed cavity 22, a movable rod 24 is provided on one side of the pressure plate 23, and a first spring 25 is provided on the movable rod 24 between the pressure plate 23 and the fixed cavity 22.
[0024] When the water pressure is high, the airbag 17 can be deformed first, and the airbag can absorb part of the water pressure. The airbag 17 can continue to deform and press on the pressure plate 23, which will compress the first spring 25 and deform it. In this way, the first spring 25 can absorb part of the water pressure through deformation.
[0025] In a preferred embodiment, an air tube 18 is also connected to one side of the airbag 17, and a pressure relief valve 19 is provided on the air tube 18.
[0026] When the pressure on the airbag 17 is too high, some of the pressure can be released through the pressure relief valve 19, thereby preventing the airbag 17 from rupturing. The airbag can be made of corrosion-resistant rubber.
[0027] In a preferred embodiment, a support plate 26 is provided on the other side of the movable rod 24, and a second spring 27 is provided between the support plate 26 and the buffer seat 21.
[0028] The second spring 27 has the same function as the first spring 25.
[0029] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.
Claims
1. A water hammer eliminating device which is easy to maintain, characterized in that, Includes a buffer chamber (11), a pressure relief valve (12) disposed on one side of the buffer chamber (11), the buffer chamber (11) has an inlet (111) and an outlet (112), a spiral guide plate (13) is provided on the water flow channel of the inlet (111) and the outlet (112), and a pressure sensor (14) is also provided in the buffer chamber (11).
2. A water hammer arrestor of claim 1, wherein: The spiral guide plate (13) has a spiral angle of 30°-45°; the spiral guide plate (13) is provided with turbulence protrusions (15), which are arranged in an alternating pattern.
3. The maintenance-friendly water hammer elimination device of claim 1, wherein: A connector (16) is provided on one side of the buffer cavity (11), an airbag (17) is provided on one side of the connector (16), and a buffer device is provided on the outside of the airbag (17).
4. A maintenance-friendly water hammer elimination device according to claim 3, characterized in that: The buffer device includes a buffer seat (21), a fixed cavity (22) surrounding the airbag (17) is provided on the buffer seat (21), a pressure plate (23) is provided on one side of the fixed cavity (22), a movable rod (24) is provided on one side of the pressure plate (23), and a first spring (25) is provided on the movable rod (24) between the pressure plate (23) and the fixed cavity (22).
5. A maintenance-friendly water hammer elimination device according to claim 4, characterized in that: An air tube (18) is also connected to one side of the airbag (17), and a pressure reducing valve (19) is provided on the air tube (18).
6. A maintenance-friendly water hammer elimination device according to claim 4, characterized in that: A support plate (26) is provided on the other side of the movable rod (24), and a second spring (27) is provided between the support plate (26) and the buffer seat (21).