A water hammer monitoring eliminator

Abstract

The utility model discloses a water hammer monitoring and eliminator, comprising a tank body, a plurality of air bags placed in the inner cavity of the tank body, and air valves and pressure relief valves are installed on the air bags; the bottom opening of the air bags is concentrically sleeved in the opening of the tank body, the bottom of the air bags and the bottom of the tank body are both open, and the openings of the air bags and the tank body are sealed and connected to one end of a pipeline. The utility model has the advantages of being able to eliminate water hammers and relieve pressure from overpressure water hammers, and avoiding damage to the water supply system and the tank body caused by pressure shocks.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply systems, in particular to a water hammer monitoring eliminator. Background Art

[0002] In urban and rural water supply systems, when water pumps start or stop, the flow rate and pressure distribution of the liquid will suddenly change, which may lead to unstable phenomena such as pressure fluctuations, oscillations, and water hammer. These transients have a negative impact on the stability and safety of the water supply system and may even damage pipes and equipment. Water hammer can cause impact forces on water pumps, valves, and other related equipment, increasing mechanical stress and fatigue of the equipment, thereby shortening the equipment's service life. Frequent equipment failures also increase operation and maintenance costs. Currently, the commonly used technologies for water hammer treatment include variable frequency water pumps and water hammer arresters. However, conventional water hammer arresters have limited capabilities, are almost ineffective against overpressure water hammer, and cannot monitor water hammer pressure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a water hammer monitoring eliminator, which can eliminate water hammer and relieve overpressure water hammer, thereby preventing the water supply system and the tank from being damaged by pressure shock.

[0004] In order to solve the above technical problems, the technical solution of the utility model is a water hammer monitoring eliminator, comprising a tank body, a plurality of air bags placed in the inner cavity of the tank body, and an air valve and a pressure relief valve are installed on the air bags; the bottom opening of the air bag is concentrically sleeved in the opening of the tank body, the bottom of the air bag and the bottom of the tank body are both open, and the openings of the air bag and the tank body are sealed and connected to one end of the pipeline.

[0005] Furthermore, the other end of the pipeline is connected to the main water pipe.

[0006] Furthermore, there are two airbags, the first airbag is installed inside the second airbag; the first airbag is installed with a first air valve and a first pressure relief valve; the second airbag is installed with a second air valve and a second pressure relief valve.

[0007] Furthermore, a third air valve and a third pressure relief valve are installed on the side wall of the tank body.

[0008] Furthermore, a first remote pressure gauge is installed on the first airbag.

[0009] Furthermore, a second remote pressure gauge is installed on the second airbag.

[0010] Furthermore, a third remote pressure gauge is installed on the side wall of the tank.

[0011] Furthermore, the first pressure relief valve, the second pressure relief valve and the third pressure relief valve are respectively installed on the lower parts of the first airbag, the second airbag and the tank body.

[0012] Furthermore, the pipes through which the first air valve and the first remote pressure gauge extend into the first airbag and the second airbag, and the pipes through which the second air valve and the second remote pressure gauge extend into the second airbag are metal hoses.

[0013] Beneficial effects of the utility model:

[0014] Air is filled into the airbag through an air valve. When water hammer occurs, the kinetic energy of the liquid causes the pressure in the pipeline to increase dramatically, compressing the air in the airbag. Since air is compressible and the airbag has a certain degree of elasticity, it can absorb and store some energy. When the pressure shock caused by the water hammer decreases or disappears, the air in the airbag begins to expand, releasing the stored energy back into the pipeline system. When an overpressure water hammer occurs, the pressure in the airbag reaches the set value, and the pressure relief valve installed on the airbag opens, which can quickly release the excessive pressure and prevent the pressure shock from causing damage to the system. The utility model can eliminate water hammer and relieve overpressure water hammer, preventing the pressure shock from causing damage to the water supply system and the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of the embodiment.

[0016] In the figure, 1-tank body, 2-first air bag, 3-first air valve, 4-first pressure relief valve, 5-second air bag, 6-second air valve, 7-second pressure relief valve, 8-third air valve, 9-third pressure relief valve, 10-pipeline, 11-main water pipe, 12-first remote pressure gauge, 13-second remote pressure gauge, 14-third remote pressure gauge. DETAILED DESCRIPTION

[0017] The following describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features of the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0018] Example

[0019] A water hammer monitoring eliminator, such as Figure 1As shown, the tank comprises a tank body 1 and two airbags placed within the inner cavity of the tank body 1, with the first airbag 2 mounted inside the second airbag 5. The bottom openings of the first and second airbags 2 and 5 are concentrically nested within the opening of the tank body 1, and the openings of the first and second airbags 2 and 5 and the tank body 1 are sealed and connected to one end of a pipe 10; the other end of the pipe 10 is connected to a main water pipe 11. The first airbag 2 is equipped with a first air valve 3, a first pressure relief valve 4, and a first remote pressure gauge 12; the first remote pressure gauge 12 is mounted on the top of the first airbag 2; the second airbag 5 is equipped with a second air valve 6, a second pressure relief valve 7, and a second remote pressure gauge 13; and the side wall of the tank body 1 is equipped with a third air valve 8, a third pressure relief valve 9, and a third remote pressure gauge 14. The first pressure relief valve 4, the second pressure relief valve 7, and the third pressure relief valve 9 are mounted on the first and second airbags 2 and 5, respectively, and on the lower portion of the tank body 1. The pipes through which the first air valve 3 and the first remote pressure gauge 12 extend into the first airbag 2 and the second airbag 5 and the pipes through which the second air valve 6 and the second remote pressure gauge 13 extend into the second airbag 5 are metal hoses.

[0020] The working principle of this utility model:

[0021] The first airbag 2, the space between the first airbag 2 and the second airbag 5, and the space between the second airbag 5 and the tank body 1 are all filled with air; through the first air valve 3, the second air valve 6 and the third air valve 8, the pressure inside the first airbag 2, between the first airbag 2 and the second airbag 5, between the second airbag 5 and the tank body 1, and outside the tank body 1 is maintained equal. When an overpressure water hammer occurs, the kinetic energy of the liquid causes the pressure in the pipeline to increase dramatically. The air in the first airbag 2 is compressed, and the first airbag 2 expands and deforms. When the pressure in the first airbag 2 exceeds the upper safety pressure limit of the first pressure relief valve 4, the first pressure relief valve 4 opens, quickly releasing the excess pressure in the first airbag 2. The air between the second airbag 5 and the first airbag 2 is compressed, and the second airbag 5 expands and deforms. When the pressure in the second airbag 5 exceeds the upper safety pressure limit of the second pressure relief valve 6, the second pressure relief valve 6 opens, quickly releasing the excess pressure in the second airbag 5. The air between the tank body 1 and the second airbag 5 is compressed, and the pressure rises. When the pressure reaches the upper safety pressure limit of the third pressure relief valve 9, the third pressure relief valve 9 opens, quickly releasing the pressure, thus achieving overpressure water hammer relief and preventing damage to the water supply system and the tank body caused by the pressure shock. The first remote pressure gauge 12, the second remote pressure gauge 13, and the third remote pressure gauge 14 can monitor the pressure in real time, facilitating the assessment of water hammer pressure.

[0022] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A water hammer monitoring eliminator, characterized in that: The invention comprises a tank body (1), and a plurality of air bags arranged in the inner cavity of the tank body (1), each of which is provided with an air valve and a pressure relief valve; the bottom opening of the air bag is concentrically sleeved in the opening of the tank body (1), the bottom of the air bag and the bottom of the tank body (1) are both open, and the openings of the air bag and the tank body (1) are sealed and connected to one end of a pipe (10).

2. The water hammer monitoring and eliminator according to claim 1, characterized in that: The other end of the pipeline (10) is connected to the main water pipe (11).

3. The water hammer monitoring and eliminator according to claim 1, characterized in that: The number of the airbags is two, the first airbag (2) is installed inside the second airbag (5); the first airbag (2) is installed with a first air valve (3) and a first pressure relief valve (4); the second airbag (5) is installed with a second air valve (6) and a second pressure relief valve (7).

4. The water hammer monitoring and eliminator according to claim 3, characterized in that: A third air valve (8) and a third pressure relief valve (9) are installed on the side wall of the tank body (1).

5. The water hammer monitoring and eliminator according to claim 3, characterized in that: The first air bag (2) is equipped with a first remote pressure gauge (12).

6. The water hammer monitoring and eliminator according to claim 5, characterized in that: A second remote pressure gauge (13) is installed on the second air bag (5).

7. The water hammer monitoring and eliminator according to claim 6, characterized in that: A third remote pressure gauge (14) is installed on the side wall of the tank body (1).

8. The water hammer monitoring and eliminator according to claim 4, characterized in that: The first pressure relief valve (4), the second pressure relief valve (7) and the third pressure relief valve (9) are respectively installed at the lower part of the first air bag (2), the second air bag (5) and the tank body (1).

9. The water hammer monitoring and eliminator according to claim 6, characterized in that: The pipes through which the first air valve (3) and the first remote pressure gauge (12) extend into the first air bag (2) and the second air bag (5) and the pipes through which the second air valve (6) and the second remote pressure gauge (13) extend into the second air bag (5) are metal hoses.

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