Water hammer eliminating equipment for long-distance water conveying pipeline

Abstract

The utility model discloses long-distance water delivery pipeline water hammer eliminating equipment and relates to the technical field of water hammer eliminating. The device comprises an infusion tube, the infusion tube is a three-way pipeline, the top of the infusion tube is provided with a connecting pipe, the connecting pipe is connected with an air containing device in a sealed mode, the air containing device comprises a connecting shell and a compressed air tank, a piston is arranged in the connecting shell, a connecting rod is arranged on the piston and movably connected with the connecting shell, and an air conveying pipe is arranged on the compressed air tank and communicated with the connecting shell. The closed air containing cavity is formed in the water pipe, the piston capable of freely moving up and down is arranged in the closed air containing cavity to eliminate irregular water hammer wave oscillation, air can be supplemented to the air containing cavity through the compressed air tank, normal operation of equipment is ensured, and the water hammer situation generated in the long-distance water conveying process is effectively eliminated.

Description

Technical Field

[0001] The utility model relates to a long-distance water delivery pipeline water hammer elimination device, and relates to the technical field of water hammer elimination. Background Art

[0002] The water hammer eliminator can effectively eliminate the irregular water hammer and surge oscillations that may be generated by various types of fluids in the transmission system without blocking the flow of fluids, thereby eliminating destructive shock waves and achieving the purpose of protection. The water hammer eliminator has a closed air chamber inside and a piston at the lower end. When the shock wave is transmitted into the water hammer eliminator, the water hammer wave acts on the piston, and the piston will move toward the air chamber. The stroke of the piston movement is related to the gas pressure in the air chamber and the size of the water hammer wave. Under the dual action of gas at a certain pressure and irregular water hammer, the piston moves up and down to form a dynamic balance, thus effectively eliminating irregular water hammer oscillations.

[0003] During long-term use, the air in the air cavity of the existing long-distance water pipeline water hammer elimination equipment will leak. If it is not replenished in time, it is easy to affect the water hammer elimination. In order to overcome these disadvantages, the utility model provides a long-distance water pipeline water hammer elimination equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a long-distance water pipeline water hammer elimination device in view of the defects or shortcomings in the prior art. The device eliminates irregular water hammer wave oscillations by arranging a closed air chamber on the water pipe and arranging a piston that can move freely up and down in the closed air chamber. The air chamber can be replenished with air through a compressed air tank to ensure the normal operation of the device, thereby effectively eliminating the water hammer situation generated during the long-distance water transmission process.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes an infusion tube 1, the infusion tube 1 is a three-way pipeline, the top is a connecting tube 3, the connecting tube 3 is sealed with an air containing device, the air containing device includes a connecting shell 6, a compressed gas tank 13, a piston 15 is arranged in the connecting shell 6, a connecting rod 14 is arranged on the piston 15 and is movably connected to the connecting shell 6, and an air delivery pipe 9 is arranged on the compressed gas tank 13 and is connected to the connecting shell 6.

[0006] Furthermore, a limit tube 7 is provided on the top of the connecting shell 6 and is movably connected to the connecting rod 14 .

[0007] Furthermore, a limiting block 18 is provided on the top of the connecting rod 14 .

[0008] Furthermore, a pressure gauge 8 is also provided on the connecting shell 6 , and a detection tube of the pressure gauge 8 extends into the connecting shell 6 .

[0009] Furthermore, one end of the gas delivery pipe 9 is provided with a valve 10 connected to the connection housing 6 , and the other end is provided with a threaded connection ring 11 at the connection with the compressed gas tank 13 .

[0010] Furthermore, the piston 15 is provided with a connecting disk 16 and a limiting seat 17 . The limiting seat 17 is provided on the connecting disk 16 . The connecting disk 16 is detachably provided on the top of the piston 15 , and the limiting seat 17 is connected to the connecting rod 14 .

[0011] Furthermore, the compressed gas tank 13 is fixed to the side wall of the connecting shell 6 through the mounting frame 12 .

[0012] Furthermore, a second flange 4 is disposed on the top of the connecting pipe 3 , a third flange 5 is disposed on the bottom of the connecting shell 6 , and the connecting pipe 3 and the connecting shell 6 are connected via the second flange 4 and the third flange 5 .

[0013] Furthermore, first flanges 2 are provided at both ends of the infusion tube 1 .

[0014] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by arranging a closed air chamber on the water pipe, and arranging a piston that can move freely up and down in the closed air chamber, irregular water hammer wave oscillations are eliminated, and the air chamber can be replenished with air through a compressed air tank to ensure the normal operation of the equipment, effectively eliminating the water bell situation generated during long-distance water transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the gas containing device in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the piston 15 in the utility model.

[0019] Explanation of the accompanying drawings: infusion tube 1, first flange 2, connecting tube 3, second flange 4, third flange 5, connecting shell 6, limiting tube 7, pressure gauge 8, gas pipe 9, valve 10, threaded connecting ring 11, mounting bracket 12, compressed gas tank 13, connecting rod 14, piston 15, connecting plate 16, limiting seat 17, limiting block 18. DETAILED DESCRIPTION

[0020] See also Figure 1-3 As shown, the technical solution adopted in this specific embodiment is: it includes an infusion tube 1, the infusion tube 1 is a three-way pipeline, the top is a connecting tube 3, the connecting tube 3 is sealed and connected with an air containing device, the air containing device includes a connecting shell 6, a compressed gas tank 13, a piston 15 is arranged in the connecting shell 6, a connecting rod 14 is arranged on the piston 15 and is movably connected with the connecting shell 6, and an air delivery pipe 9 is arranged on the compressed gas tank 13 and is connected with the connecting shell 6. In the existing long-distance water supply process, irregular water shock waves such as water shock and surge are easily generated, resulting in damage to the water pipe, so a water shock elimination device is needed to eliminate the water shock phenomenon. The existing water shock elimination device has a relatively simple structure and will appear after long-term use. There is a phenomenon of air leakage, which leads to poor water bell elimination effect or complete inability to eliminate water bell. Therefore, in this embodiment, an air-containing device assembly is provided, one part of which is a piston moving part and the other part is an air-supplementing part. In the structure of the piston moving part, the piston is arranged in a sealed connecting shell, and the connecting shell is connected to the three-way infusion pipeline. The piston divides the connecting shell into two parts, the upper part is a gas retention area, and the lower part is a water flow impact area. When the water flow enters the lower part, the impact causes the piston to move upward to compress the upper air and obtain a thrust of the compressed air. Therefore, the piston will move irregularly with the impact of water waves and the thrust of compressed air, thereby forming a dynamic balance to achieve the purpose of eliminating water bell.

[0021] The supplementary part structure is mainly a compressed gas tank. During the daily inspection of the staff, when the air pressure is found to be insufficient, the connected shell can be inflated through the compressed gas tank to ensure that the equipment maintains appropriate pressure for a long time and obtains the best water bell elimination effect.

[0022] To be more specific, a limiting tube 7 is arranged on the top of the connecting shell 6 and is movably connected to the connecting rod 14, a limiting block 18 is arranged on the top of the connecting rod 14, the connecting rod body and the connecting shell are slidably connected, and the limiting block and the limiting tube are slidably connected to ensure that the piston can move up and down smoothly in the connecting shell.

[0023] More specifically, a pressure gauge 8 is also provided on the connecting shell 6, and the detection tube of the pressure gauge 8 extends into the connecting shell 6. The pressure gauge is provided to facilitate the staff to clearly understand the pressure situation during daily maintenance so as to replenish gas in time.

[0024] To be more specific, one end of the gas pipe 9 is provided with a valve 10 connected to the connecting shell 6, and the other end is provided with a threaded connection ring 11 at the connection with the compressed gas tank 13. In this embodiment, a valve is provided to control the switch of the compressed gas tank, and it can be further provided as a one-way valve to ensure the gas replenishment effect. The fastening of the gas pipe and the compressed gas tank is achieved by a threaded connection ring for better disassembly and assembly.

[0025] To be more specific, the piston 15 is provided with a connecting disk 16 and a limit seat 17. The limit seat 17 is arranged on the connecting disk 16. The connecting disk 16 is detachably arranged on the top of the piston 15, and the limit seat 17 is connected to the connecting rod 14. The limit seat can prevent the piston from directly colliding with the top of the connecting shell when it is subjected to excessive sudden impact, thereby providing limit protection for the piston.

[0026] To be more specific, the compressed gas tank 13 is fixed to the side wall of the connecting shell 6 through the mounting bracket 12. In this embodiment, a mounting bracket is provided on the connecting shell for mounting and fixing the compressed gas tank. In other embodiments, according to the site conditions, the compressed gas tank can also be separately installed in a fixed position and then connected to the connecting shell.

[0027] To be more specific, a second flange 4 is provided on the top of the connecting tube 3, a third flange 5 is provided on the bottom of the connecting shell 6, the connecting tube 3 and the connecting shell 6 are connected through the second flange 4 and the third flange 5, and a first flange 2 is provided at both ends of the infusion tube 1. In this embodiment, all ports are sealed and then fastened through flange connections.

[0028] The working principle of the utility model is as follows: the infusion tube 1 is connected to the two sections of water pipes through the first flange 2. During the water supply process, since the connecting shell 6 is connected to the connecting tube 3, when the shock wave is transmitted into the infusion tube 1, the water shock wave acts on the piston 15, and the piston 15 will move upward in the connecting shell 6. The movement stroke of the piston 15 is related to the gas pressure in the connecting shell 6 and the size of the water shock wave. Under the dual effects of gas at a certain pressure and irregular water hammer, the piston 15 moves up and down to form a dynamic balance, which effectively eliminates irregular water hammer wave oscillations, and the internal air pressure value can be understood through the pressure gauge 8. When the air pressure is insufficient, the valve 10 is opened to inflate through the compressed gas tank 13 to increase the air pressure in the connecting shell 6, so that the piston 15 can better move under the action of air pressure to eliminate the influence of water hammer.

[0029] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A water hammer elimination device for long-distance water pipelines, characterized in that: The invention comprises a liquid infusion tube (1), wherein the liquid infusion tube (1) is a three-way pipe, the top of which is a connecting tube (3), the connecting tube (3) is sealedly connected to a gas containing device, the gas containing device comprises a connecting shell (6) and a compressed gas tank (13), a piston (15) is arranged in the connecting shell (6), a connecting rod (14) is arranged on the piston (15) and is movably connected to the connecting shell (6), and a gas delivery tube (9) is arranged on the compressed gas tank (13) and is connected to the connecting shell (6).

2. The long-distance water pipeline water hammer elimination device according to claim 1 is characterized by: A limit tube (7) is arranged on the top of the connection shell (6) and is movably connected to a connection rod (14).

3. The long-distance water pipeline water hammer elimination device according to claim 1 is characterized by: A limiting block (18) is arranged on the top of the connecting rod (14).

4. The long-distance water pipeline water hammer elimination device according to claim 1 is characterized by: The connecting shell (6) is also provided with a pressure gauge (8), and a detection tube of the pressure gauge (8) extends into the connecting shell (6).

5. The long-distance water pipeline water hammer elimination device according to claim 1 is characterized by: One end of the gas delivery pipe (9) is provided with a valve (10) connected to the connecting housing (6), and the other end is provided with a threaded connection ring (11) at the connection with the compressed gas tank (13).

6. The long-distance water pipeline water hammer elimination device according to claim 1 is characterized by: The piston (15) is provided with a connecting disk (16) and a limiting seat (17). The limiting seat (17) is arranged on the connecting disk (16). The connecting disk (16) is detachably arranged on the top of the piston (15), and the limiting seat (17) is connected to the connecting rod (14).

7. The long-distance water pipeline water hammer elimination device according to claim 1, characterized in that: The compressed gas tank (13) is fixed to the side wall of the connecting shell (6) via a mounting frame (12).

8. The long-distance water pipeline water hammer elimination device according to claim 1, characterized in that: The top of the connecting pipe (3) is provided with a second flange (4), the bottom of the connecting shell (6) is provided with a third flange (5), and the connecting pipe (3) and the connecting shell (6) are connected via the second flange (4) and the third flange (5).

9. The long-distance water pipeline water hammer elimination device according to claim 1, characterized in that: The two ends of the infusion tube (1) are provided with first flanges (2).

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