Water hammer preventing device for water supply equipment

Abstract

The utility model provides a water supply equipment water hammer prevention device, which relates to the technical field of water hammer prevention devices, and comprises a water supply pipe, one end of the water supply pipe is fixedly sleeved with a connecting sleeve, the top of the connecting sleeve is provided with a buffer device I, and the buffer device I comprises a shell I and a shell II; pistons are movably embedded in the first shell and the second shell, the other end of the water supply pipe is fixedly sleeved with a second buffer device, the second buffer device comprises a connecting sealing pipe and a cross-shaped baffle, dampers are fixedly connected to the two sides of the four ends of the cross-shaped baffle, and springs are fixedly connected to the two sides of the four ends of the cross-shaped baffle. According to the water hammer valve, the first shell and the second shell change along with the pressure in the pipeline, the pistons in the first shell and the second shell can synchronously move to buffer the pressure, protection on the valve is enhanced, and damage to the valve caused by the water hammer effect is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-water hammer devices, in particular to an anti-water hammer device for water supply equipment. Background Art

[0002] The water hammer effect refers to the smooth inner wall of the water pipe, where water flows freely. When an open valve is suddenly closed, the water flow will exert pressure on the valve and the pipe wall, mainly the valve. Since the pipe wall is smooth, the subsequent water flow quickly reaches its maximum under the action of inertia and produces a destructive effect. This is the "water hammer effect" in hydraulics, also known as positive water hammer. This factor must be considered in the construction of water conservancy pipelines. On the contrary, a closed valve will also produce water hammer after it is suddenly opened, which is called negative water hammer. It also has a certain destructive power, but not as great as the former.

[0003] In the prior art, in order to solve the water hammer effect generated in the water supply equipment, water hammer arresters are mostly installed on the water supply pipes. Although the water hammer arresters can alleviate the damage to the water supply pipes caused by the water hammer effect to a certain extent, they are insufficient in protecting the bends and valves of the water supply pipes.

[0004] Therefore, a water hammer prevention device for water supply equipment is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a water supply equipment anti-water hammer device, comprising: a water supply pipe, one end of the water supply pipe is fixedly sleeved with a connecting sleeve, the top of the connecting sleeve is provided with a buffer device 1, the buffer device 1 comprises a shell 1 and a shell 2, the interiors of the shells 1 and 2 are both movably embedded with pistons, the other end of the water supply pipe is fixedly sleeved with a buffer device 2, the buffer device 2 comprises a connecting sealing tube and a cross baffle, the four ends of the cross baffle are fixedly connected to dampers on both sides, and the four ends of the cross baffle are fixedly connected to springs on both sides.

[0007] As a preferred implementation, a valve is embedded in the surface of the water supply pipe.

[0008] As a preferred embodiment, a connecting water pipe 1 is fixedly embedded in one end of the connecting sleeve.

[0009] As a preferred embodiment, the bottom end of the shell one is through-connected to the surface of the connecting sleeve, the air inlet end of the shell two is through-connected to the air outlet end of the shell one, the surfaces of the shell one and the shell two are fixedly sleeved with a fixing sleeve, the top of the shell two is fixedly connected to a connecting pipe two, the air inlet end of the shell two is fixedly connected to a connecting pipe one, the surface of the connecting pipe one is fixedly embedded in the inside of the fixing sleeve, one end of the connecting pipe one and the connecting pipe two are both fixedly installed with a pressure gauge, and the surfaces of the connecting pipe one and the connecting pipe two are both fixedly connected with an inflation valve.

[0010] As a preferred embodiment, one end of the connecting sealing tube is fixedly sleeved on the surface of the water supply pipe, an arc-shaped diverter plate is fixedly installed at the center of one side of the cross baffle, the damper is located on the inner side of the spring, and one end of the spring and the damper are fixedly installed on one side of the inner cavity of the connecting sealing tube.

[0011] As a preferred embodiment, a second connecting water pipe is fixedly embedded in the other end of the connecting sealing pipe.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. The utility model installs a connecting sleeve on one end of a water supply pipe near a valve, and the other end of the connecting sleeve is connected to a connecting water pipe 1, which is connected to an external water supply pipeline. A shell 1 passes through the surface of the connecting sleeve. When the valve is opened and closed, the pressure brought by the water flow inside the water supply pipe and the connecting water pipe 1 will squeeze and pull the piston inside the shell 1 for buffering. At the same time, in order to improve the buffering capacity of water pressure, a shell 2 with the same structure is connected to the top of the shell 1. As the pressure in the pipeline changes, the pistons inside the shells 1 and 2 will move synchronously to buffer the pressure, thereby strengthening the protection of the valve and reducing the damage to the valve caused by the water hammer effect.

[0014] 2. The utility model has a connecting sealing tube connected to one end of the water supply pipe close to the bend, a cross baffle is arranged inside the connecting sealing tube, dampers and springs are connected to both sides of the cross baffle, when the valve is started and stopped, the cross baffle will squeeze the damper and spring along the direction of water flow for buffering, an arc-shaped diverter plate is arranged on the side of the cross baffle facing the water inlet end, which is used to reduce the resistance to the water flow, when the valve is closed, the backflow of water will first impact the cross baffle, thereby squeezing the damper and spring for buffering, and then impact the bend of the water supply pipe, which can reduce the damage of the water hammer to the bend of the water supply pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the main body of a water hammer protection device for water supply equipment provided by the utility model;

[0016] Figure 2This is an external structural diagram of a buffer device 2 for preventing water hammer of a water supply equipment provided by the utility model;

[0017] Figure 3 This is an internal structure diagram of a buffer device 2 for preventing water hammer of a water supply equipment provided by the utility model;

[0018] Figure 4 An external structural diagram of a buffer device for preventing water hammer of a water supply equipment provided by the utility model;

[0019] Figure 5 The utility model discloses an internal structure diagram of a buffer device for preventing water hammer of a water supply equipment.

[0020] Legend:

[0021] 1. Water supply pipe; 101. Valve; 2. Connecting sleeve; 3. Connecting water pipe 1; 4. Buffer device 1; 401. Shell 1; 402. Shell 2; 403. Piston; 404. Fixed sleeve; 405. Connecting pipe 1; 406. Connecting pipe 2; 407. Pressure gauge; 408. Inflating valve; 5. Buffer device 2; 501. Connecting sealing pipe; 502. Cross baffle; 503. Damper; 504. Spring; 505. Arc-shaped diverter plate; 6. Connecting water pipe 2. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The utility model provides a technical solution: a water hammer prevention device for water supply equipment, comprising: a water supply pipe 1, one end of the water supply pipe 1 is fixedly sleeved with a connecting sleeve 2, the top of the connecting sleeve 2 is provided with a buffer device 4, the buffer device 4 comprises a shell 1 401 and a shell 2 402, the interiors of the shells 1 401 and 402 are both movably embedded with pistons 403, the other end of the water supply pipe 1 is fixedly sleeved with a buffer device 2 5, the buffer device 2 5 comprises a connecting sealing tube 501 and a cross baffle 502, the two sides of the four ends of the cross baffle 502 are fixedly connected with dampers 503, and the two sides of the four ends of the cross baffle 502 are fixedly connected with springs 504.

[0024] Specifically: the connecting sleeve 2 seals and connects the water supply pipe 1 and the connecting water pipe 1 3 , the connecting sealing pipe 501 seals and connects the water supply pipe 1 and the connecting water pipe 2 6 , and the buffer device 1 4 and the buffer device 2 5 play a role of buffer protection.

[0025] In one embodiment, a valve 101 is embedded in the surface of the water supply pipe 1 .

[0026] Specifically: the valve 101 is a common pipeline valve device in the prior art.

[0027] In one embodiment, a connecting water pipe 3 is fixedly embedded in one end of the connecting sleeve 2.

[0028] Specifically: one end of the water pipe 3 is connected to the external water supply pipeline.

[0029] In one embodiment, the bottom end of shell 1 401 is through-connected to the surface of connecting sleeve 2, the air inlet end of shell 2 402 is through-connected to the air outlet end of shell 1 401, a fixed sleeve 404 is fixedly sleeved on the surfaces of shell 1 401 and shell 2 402, a connecting pipe 2 406 is fixedly connected to the top of shell 2 402, a connecting pipe 1 405 is fixedly connected to the air inlet end of shell 2 402, the surface of connecting pipe 1 405 is fixedly embedded in the interior of the fixed sleeve 404, one end of connecting pipe 1 405 and connecting pipe 2 406 are both fixedly installed with pressure gauges 407, and the surfaces of connecting pipe 1 405 and connecting pipe 2 406 are both fixedly connected with inflation valves 408.

[0030] Specifically: the pressure brought by the water flow inside the water supply pipe 1 and the connecting water pipe 3 will squeeze and pull the piston 403 in the shell 1 401 for buffering. At the same time, in order to improve the buffering capacity of water pressure, a shell 2 402 with the same structure is connected to the top of the shell 1 401. As the pressure in the pipeline changes, the pistons 403 inside the shell 1 401 and the shell 2 402 will move synchronously to buffer the pressure, thereby strengthening the protection of the valve 101 and reducing the damage to the valve 101 caused by the water hammer effect. The pressure gauge 407 can detect and observe the buffering air pressure inside the shell 1 401 and the shell 2 402, and can perform inflation and pressurization work through the inflation valve 408. The fixed sleeve 404 strengthens the connection between the support shell 1 401 and the shell 2 402.

[0031] In one embodiment, one end of the connecting sealing tube 501 is fixedly sleeved on the surface of the water supply pipe 1, an arc-shaped diverter plate 505 is fixedly installed at the center of one side of the cross baffle 502, the damper 503 is located on the inner side of the spring 504, and one end of the spring 504 and the damper 503 are fixedly installed on one side of the inner cavity of the connecting sealing tube 501.

[0032] Specifically: a cross baffle 502 is arranged inside the connecting sealing tube 501, and dampers 503 and springs 504 are connected on both sides of the cross baffle 502. When the valve 101 is started and stopped, the cross baffle 502 will squeeze the damper 503 and the spring 504 in the direction of the water flow for buffering. An arc-shaped diverter plate 505 is arranged on the side of the cross baffle 502 facing the water inlet end to reduce the resistance to the water flow. When the valve is closed, the backflow of water will first impact the cross baffle 502, thereby squeezing the damper 503 and the spring 504 for buffering. The center of the side of the cross baffle 502 facing the return water end is a circular plate to increase the resistance. The fully straightened length of the damper 503 meets the limit pulling distance of the cross baffle 502 and the damper 503.

[0033] In one embodiment, a connecting water pipe 2 6 is fixedly embedded in the other end of the connecting sealing tube 501 .

[0034] Specifically: one end of the connecting water pipe 2 6 is connected to the external water supply pipeline.

[0035] Working principle: This device installs the connecting sleeve 2 at one end of the water supply pipe 1 close to the valve 101, and the other end of the connecting sleeve 2 is connected to the connecting water pipe 3, and the connecting water pipe 3 is connected to the external water supply pipeline. The shell 1 401 passes through the surface of the connecting sleeve 2. When the valve 101 is opened and closed, the pressure brought by the water flow inside the water supply pipe 1 and the connecting water pipe 3 will squeeze and pull the piston 403 in the shell 1 401 for buffering. At the same time, in order to improve the buffering capacity of water pressure, a shell 2 402 with the same structure is connected to the top of the shell 1 401. As the pressure in the pipeline changes, the pistons 403 inside the shells 1 401 and 402 will move synchronously to buffer the pressure, thereby strengthening the valve 101. protection, reducing the damage of the valve 101 to the water hammer effect; a connecting sealing tube 501 is connected to the end of the water supply pipe 1 close to the bend, a cross baffle 502 is arranged inside the connecting sealing tube 501, and dampers 503 and springs 504 are connected to both sides of the cross baffle 502. When the valve 101 is started and stopped, the cross baffle 502 will squeeze the damper 503 and the spring 504 in the direction of the water flow for buffering. An arc-shaped diverter plate 505 is arranged on the side of the cross baffle 502 facing the water inlet end to reduce the resistance to the water flow. When the valve is closed, the backflow of water will first impact the cross baffle 502, thereby squeezing the damper 503 and the spring 504 for buffering, and then impact the bend of the water supply pipe 1, which can reduce the damage of the bend of the water supply pipe 1 to the water hammer.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A water hammer protection device for water supply equipment, characterized in that: include: A water supply pipe (1), wherein a connecting sleeve (2) is fixedly sleeved at one end of the water supply pipe (1), a buffer device 1 (4) is arranged at the top of the connecting sleeve (2), and a buffer device 2 (5) is fixedly sleeved at the other end of the water supply pipe (1); The buffer device 1 (4) comprises a shell 1 (401) and a shell 2 (402), and pistons (403) are movably embedded in the shell 1 (401) and the shell 2 (402); The second buffer device (5) comprises a connecting sealing tube (501) and a cross baffle (502), the four ends of the cross baffle (502) are fixedly connected to dampers (503) on both sides, and the four ends of the cross baffle (502) are fixedly connected to springs (504) on both sides.

2. A water hammer protection device for water supply equipment according to claim 1, characterized in that: A valve (101) is embedded and installed on the surface of the water supply pipe (1).

3. The water hammer protection device for water supply equipment according to claim 1, characterized in that: A connecting water pipe 1 (3) is fixedly embedded in one end of the connecting sleeve (2).

4. The water hammer protection device for water supply equipment according to claim 1, characterized in that: The bottom end of the shell one (401) is connected to the surface of the connecting sleeve (2), the air inlet end of the shell two (402) is connected to the air outlet end of the shell one (401), the surfaces of the shell one (401) and the shell two (402) are fixedly sleeved with a fixing sleeve (404), the top of the shell two (402) is fixedly connected to a connecting pipe two (406), the air inlet end of the shell two (402) is fixedly connected to a connecting pipe one (405), the surface of the connecting pipe one (405) is fixedly embedded in the interior of the fixing sleeve (404), one end of the connecting pipe one (405) and the connecting pipe two (406) are both fixedly installed with a pressure gauge (407), and the surfaces of the connecting pipe one (405) and the connecting pipe two (406) are both fixedly connected with an inflation valve (408).

5. The water hammer protection device for water supply equipment according to claim 1, characterized in that: One end of the connecting sealing tube (501) is fixedly sleeved on the surface of the water supply pipe (1), an arc-shaped flow divider (505) is fixedly installed at the center of one side of the cross baffle (502), the damper (503) is located on the inner side of the spring (504), and one end of the spring (504) and the damper (503) are both fixedly installed on one side of the inner cavity of the connecting sealing tube (501).

6. The water hammer protection device for water supply equipment according to claim 1, characterized in that: A second connecting water pipe (6) is fixedly embedded in the other end of the connecting sealing pipe (501).

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