Cavitation-preventing device for pressurizing pump of pressurizing station

Abstract

The utility model discloses an anti-cavitation device for a pressurizing pump of a pressurizing station, which belongs to the technical field of pressurizing pump protection and comprises a water storage tank, a water supply pipe and an exhaust component, the water storage tank is connected with a water inlet end of the pressurizing pump through the water supply pipe, and the exhaust component is mounted at the top of the water storage tank and comprises an exhaust pipe, an exhaust valve and an exhaust fan. The exhaust pipe is connected to one side of the top of the water storage tank, an exhaust valve is arranged at the joint of the water storage tank and the exhaust pipe, and an exhaust fan is mounted on the inner side of a top opening of the exhaust pipe. The booster pump has the advantages that the water storage tank is arranged between the booster pump and the external water inlet pipeline for water storage, air in water can be exhausted through the exhaust pipe along with rising of the water level in the water storage tank, cavitation of the air in water to the interior of the booster pump is avoided, the problem that an impeller and a rotor are frequently replaced after cavitation of the booster pump is solved, the effects of consumption reduction and energy conservation are achieved, and the service life of the booster pump is prolonged. And the exhaust fan is further arranged in the exhaust pipe, so that the rapid exhaust function can be achieved, and the using effect of the cavitation prevention device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pump protection, in particular to an anti-cavitation device for a booster pump of a booster station. Background Art

[0002] A booster pump station refers to a structure that increases the water pressure in local areas of a water distribution system. It is also called a booster station. In a broad sense, a booster pump station also includes multiple pumping stations in a water transmission system that pump water into various transfer water transmission stations. At present, the water coming from the booster station often contains air. After long-term operation, it is easy to cause serious cavitation of the booster pump impeller. The service life of the impeller is about 10 months, and the pump discharge head and flow rate do not meet the pump technical requirements, thus affecting industrial water supply needs.

[0003] In the prior art, the booster pump of the booster station lacks an efficient anti-cavitation structure, and its practicality and durability need to be improved. At the same time, a utility model patent with announcement number CN215333670U discloses a device for preventing pump cavitation, including a centrifugal pump whose inlet is connected to a 50-100°C water source, the outlet of the centrifugal pump is connected to a destination device, a liquid tank is connected between the inlet of the centrifugal pump and the water source, the inlet of the centrifugal pump and the water source are connected to the lower part of the liquid tank through a pipeline, and the top of the liquid tank is connected to an exhaust pipe. It has a simple structure, and its anti-cavitation performance needs to be improved. It is also not convenient to protect the water pipeline of the booster pump, and its practicality is insufficient. Utility Model Content

[0004] In order to overcome the problems in the prior art that the water from the boosting station often contains air, which may easily cause serious cavitation of the boosting pump impeller after long-term operation, the boosting pump of the boosting station lacks an efficient anti-cavitation structure, and its practicality and durability need to be improved, the utility model provides an anti-cavitation device for the boosting pump of the boosting station, comprising a water storage tank, a water supply pipe and an exhaust assembly, the water storage tank is connected to the water inlet end of the boosting pump through the water supply pipe, the exhaust assembly is installed on the top of the water storage tank, the exhaust assembly includes an exhaust pipe, an exhaust valve and an exhaust fan, the exhaust pipe is connected to one side of the top of the water storage tank, the exhaust valve is provided at the connection between the water storage tank and the exhaust pipe, and the exhaust fan is installed on the inner side of the top opening of the exhaust pipe.

[0005] A water storage tank is set between the booster pump and the water pipe to store water. As the water level in the water storage tank rises, the air in the water supply can be discharged through the exhaust pipe, thereby preventing the air in the water from causing cavitation to the internal components of the booster pump, solving the problems of cavitation in the booster pump and frequent replacement of impellers and rotors, thereby achieving the effect of reducing consumption and saving energy. At the same time, an exhaust fan is also provided in the exhaust pipe to achieve the function of rapid exhaust, further improving the use effect of the anti-cavitation device.

[0006] Preferably, a side of the water storage tank away from the water supply pipe is connected to an external pipeline, and a water supply valve is installed on the external pipeline.

[0007] Preferably, a pressure warning component is provided on the water tank, and the pressure warning component includes a water pressure sensor and an alarm. Water pressure sensors are respectively installed on one end of the water supply pipe close to the water tank and on the external pipe close to the external pipe. The alarm is installed on the side of the top of the water tank away from the exhaust pipe, and the alarm is electrically connected to the two water pressure sensors.

[0008] Preferably, a liquid level meter is installed on one side inside the water storage tank.

[0009] Preferably, a reinforcing plate is installed on the outer surface of the water storage tank, and a corrosion-resistant inner tank is installed on the inner wall of the water storage tank.

[0010] By setting a reinforcing plate on the outside of the water tank, the external strength of the water tank can be improved, making it less prone to damage. By setting a corrosion-resistant inner tank on the inner wall of the water tank, its corrosion resistance can be improved, avoiding water supply corrosion, thereby increasing the service life of the water tank.

[0011] Preferably, an arc-shaped elbow is formed at the top of the exhaust pipe, and a protective net is provided at the opening of the arc-shaped elbow.

[0012] Preferably, a display is provided on the front of the water storage tank, and the display is electrically connected to the two water pressure sensors and the liquid level meter.

[0013] The water pressure sensor installed at the connection between the water supply pipe and the external pipe and the water tank can monitor the water supply pressure. Under abnormal conditions, the alarm can be used to remind the staff to deal with it in time, which also makes it convenient for the staff to control the water pressure and maintain the water pressure balance in the water tank.

[0014] Preferably, a connecting flange is provided at the connection between the water supply pipe and the booster pump, and a sealing gasket is provided on the surface of the connecting flange.

[0015] Preferably, the water storage tank is made of stainless steel, and the water supply pipe and the external pipe are made of high-strength corrugated pipe.

[0016] Preferably, a bottom plate is provided at the bottom of the water storage tank, and a plurality of fixing holes are formed on the sides of the bottom plate.

[0017] The bottom plate and the fixing holes can facilitate the fixing of the water storage tank to the ground beside the booster pump, thereby facilitating the stable operation of the device.

[0018] Beneficial effects:

[0019] The beneficial effects produced by adopting the technical solution of the utility model are as follows:

[0020] (1) A water storage tank is set between the booster pump and the water supply pipe to store water. As the water level in the water storage tank rises, the air in the water supply can be discharged through the exhaust pipe, thereby preventing the air in the water from causing cavitation to the internal components of the booster pump, solving the problems of cavitation of the booster pump and frequent replacement of impellers and rotors, and achieving the effect of reducing consumption and saving energy. At the same time, an exhaust fan is also set in the exhaust pipe to achieve the function of rapid exhaust, further improving the use effect of the anti-cavitation device.

[0021] (2) The water pressure sensor installed at the connection between the water supply pipe and the external pipe and the water tank can monitor the water supply pressure. In abnormal conditions, the alarm can be used to remind the staff to deal with it in time, which is also convenient for the staff to control the water pressure and maintain the water pressure balance in the water tank.

[0022] (3) By installing a reinforcing plate on the outside of the water tank, the external strength of the water tank can be improved, making it less prone to damage. By installing a corrosion-resistant inner tank on the inner wall of the water tank, its corrosion resistance can be improved to avoid water supply corrosion, thereby increasing the service life of the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall connection structure of the booster pump anti-cavitation device of the booster station of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the water storage tank on the booster pump anti-cavitation device of the booster station of the utility model;

[0026] Figure 3 This is a schematic diagram of the internal connection structure of the booster pump anti-cavitation device of the booster station of the utility model;

[0027] Figure 4 The utility model is a schematic diagram of the internal structure of a water supply pipe on a booster pump anti-cavitation device of a booster station.

[0028] In the figure: 1. Water storage tank; 2. Pressure pump; 3. Water supply pipe; 4. External pipe; 5. Exhaust pipe; 6. Exhaust valve; 7. Water pressure sensor; 8. Alarm; 9. Water supply valve; 10. Display; 11. Exhaust fan; 12. Protective net; 13. Liquid level gauge; 14. Bottom plate; 15. Fixing hole; 16. Reinforcement plate; 17. Corrosion-resistant inner tank; 18. Connecting flange; 19. Sealing gasket. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] This embodiment stores water in a water tank between the booster pump and the water supply pipe. As the water level in the water tank rises, the air in the water supply can be discharged through the exhaust pipe, thereby preventing the air in the water from causing cavitation to the internal components of the booster pump, solving the problems of booster pump cavitation and frequent replacement of impellers and rotors, and achieving the effect of reducing consumption and saving energy. At the same time, an exhaust fan is also provided in the exhaust pipe to achieve the function of rapid exhaust, further improving the use effect of the anti-cavitation device. The specific implementation is as follows:

[0031] like Figures 1 to 4 As shown, a booster pump anti-cavitation device for a booster station comprises a water storage tank 1, a water supply pipe 3 and an exhaust assembly. The water storage tank 1 is connected to the water inlet end of the booster pump 2 through the water supply pipe 3. An exhaust assembly is installed on the top of the water storage tank 1. The exhaust assembly comprises an exhaust pipe 5, an exhaust valve 6 and an exhaust fan 11. The exhaust pipe 5 is connected to one side of the top of the water storage tank 1. The exhaust valve 6 is arranged at the connection between the water storage tank 1 and the exhaust pipe 5. The exhaust fan 11 is installed on the inner side of the top opening of the exhaust pipe 5. The water storage tank 1 is arranged between the booster pump 2 and the incoming water pipeline to store water. As the water level in the water storage tank 1 rises, the air in the water supply can be discharged through the exhaust pipe 5. The exhaust pipe 5 can be opened through the exhaust valve 6, thereby preventing the air in the water from causing cavitation to the internal components of the booster pump 2, solving the problem of frequent replacement of the impeller and rotor of the booster pump 2 after cavitation, and achieving the effect of reducing consumption and energy saving. At the same time, an exhaust fan 11 is also arranged in the exhaust pipe 5, which can accelerate air circulation, realize the function of rapid exhaust, and further improve the use effect of the anti-cavitation device.

[0032] The side of the water storage tank 1 away from the water supply pipe 3 is connected to an external pipe 4, on which a water supply valve 9 is installed. The external pipe 4 can be connected to an external water pipe. At the same time, the external pipe 4 can be controlled by the water supply valve 9 to achieve normal water supply control.

[0033] A pressure warning component is provided on the water tank 1, and the pressure warning component includes a water pressure sensor 7 and an alarm 8. The water pressure sensors 7 are respectively installed at one end of the water supply pipe 3 close to the water tank 1 and at the external pipe 4 close to the external pipe 4. An alarm 8 is installed on the side of the top of the water tank 1 away from the exhaust pipe 5. The alarm 8 is electrically connected to the two water pressure sensors 7. The water pressure sensor 7 arranged at the connection between the water supply pipe 3 and the external pipe 4 and the water tank 1 can monitor the water supply pressure. In an abnormal state, the alarm 8 can be used to remind the staff to deal with it in time.

[0034] A liquid level meter 13 is installed on one side of the water storage tank 1 . The liquid level meter 13 can be used to detect the water level inside the water storage tank 1 , so that the staff can monitor the water level inside the water storage tank 1 .

[0035] The outer surface of the water storage tank 1 is installed with a reinforcing plate 16, and the inner wall of the water storage tank 1 is installed with a corrosion-resistant inner tank 17. The reinforcing plate 16 provided on the outside of the water storage tank 1 can improve the external strength of the water storage tank 1 and make it less prone to damage. The corrosion-resistant inner tank 17 provided on the inner wall of the water storage tank 1 can improve its corrosion resistance and avoid water supply corrosion, thereby increasing the service life of the water storage tank 1. The corrosion-resistant inner tank 17 is connected to the water supply pipe 3 and the external pipe 4 to temporarily store water.

[0036] An arc-shaped bend is formed at the top of the exhaust pipe 5, and a protective net 12 is provided at the opening of the arc-shaped bend. The arc-shaped bend and the protective net 12 can prevent impurities from falling into the exhaust pipe 5 and protect the exhaust fan 11.

[0037] A display 10 is provided on the front of the water storage tank 1, and the display 10 is electrically connected to the two water pressure sensors 7 and the liquid level meter 13. Through the setting of the display 10, the water pressure data at the inlet and outlet of the water storage tank 1 can be displayed, so that the staff can control the water pressure and maintain the water pressure balance in the water storage tank 1. At the same time, the liquid level data can also be displayed.

[0038] A connecting flange 18 is provided at the connection between the water supply pipe 3 and the booster pump 2, and a sealing gasket 19 is provided on the surface of the connecting flange 18. The connecting flange 18 can facilitate a tighter connection between the water supply pipe 3 and the booster pump 2. With the action of the sealing gasket 19, the sealing performance can be improved to avoid water leakage and seepage.

[0039] The water storage tank 1 is made of stainless steel, and the water supply pipe 3 and the external pipe 4 are made of high-strength corrugated pipes.

[0040] The bottom of the water storage tank 1 is provided with a bottom plate 14, and the side of the bottom plate 14 is formed with a plurality of fixing holes 15. Through the bottom plate 14 and the fixing holes 15, the water storage tank 1 can be conveniently fixed to the ground beside the booster pump 2, thereby facilitating the stable operation of the device.

[0041] Working principle: a water storage tank is set between the booster pump and the water pipe to store water. As the water level in the water storage tank rises, the air in the water supply can be discharged through the exhaust pipe. The exhaust pipe can be controlled by the exhaust valve to prevent the air in the water from causing cavitation to the internal components of the booster pump, solve the problem of frequent replacement of impellers and rotors after cavitation of the booster pump, and achieve the effect of reducing consumption and energy saving. At the same time, an exhaust fan is also provided in the exhaust pipe to achieve the function of rapid exhaust, further improving the use effect of the anti-cavitation device. The water pressure sensor set at the connection between the water supply pipe and the external pipe and the water storage tank can monitor the water supply pressure. Under abnormal conditions, the alarm can be used to remind the staff to deal with it in time, which is also convenient for the staff to control the water pressure and maintain the water pressure balance in the water storage tank. The reinforcement plate set on the outside of the water storage tank can improve the external strength of the water storage tank and make it not easy to be damaged. The corrosion-resistant inner tank set on the inner wall of the water storage tank can improve its corrosion resistance and avoid water supply corrosion, thereby increasing the service life of the water storage tank.

[0042] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pressure station booster pump anti-cavitation device, characterized in that: The invention comprises a water storage tank (1), a water supply pipe (3) and an exhaust assembly, wherein the water storage tank (1) is connected to the water inlet end of a booster pump (2) via the water supply pipe (3), the exhaust assembly is installed on the top of the water storage tank (1), and the exhaust assembly comprises an exhaust pipe (5), an exhaust valve (6) and an exhaust fan (11), the exhaust pipe (5) is connected to one side of the top of the water storage tank (1), the exhaust valve (6) is provided at the connection between the water storage tank (1) and the exhaust pipe (5), and the exhaust fan (11) is installed on the inner side of the top opening of the exhaust pipe (5).

2. The anti-cavitation device for a booster pump of a booster station according to claim 1, characterized in that: The side of the water storage tank (1) away from the water supply pipe (3) is connected to an external pipeline (4), and a water supply valve (9) is installed on the external pipeline (4).

3. The anti-cavitation device for a booster pump of a booster station according to claim 2, characterized in that: The water storage tank (1) is provided with a pressure warning component, the pressure warning component comprising a water pressure sensor (7) and an alarm (8); the water pressure sensor (7) is installed at one end of the water supply pipe (3) close to the water storage tank (1) and at one end of the external pipe (4) close to the external pipe (4); the alarm (8) is installed at the top of the water storage tank (1) on a side away from the exhaust pipe (5); the alarm (8) is electrically connected to the two water pressure sensors (7).

4. The anti-cavitation device for a booster pump of a booster station according to claim 3, characterized in that: A liquid level meter (13) is installed on one side inside the water storage tank (1).

5. The anti-cavitation device for a booster pump in a booster station according to claim 1, characterized in that: A reinforcing plate (16) is installed on the outer surface of the water storage tank (1), and a corrosion-resistant inner tank (17) is installed on the inner wall of the water storage tank (1).

6. The anti-cavitation device for a booster pump in a booster station according to claim 1, characterized in that: An arc-shaped curved pipe is formed at the top of the exhaust pipe (5), and a protective net (12) is provided at the opening of the arc-shaped curved pipe.

7. The anti-cavitation device for a booster pump of a booster station according to claim 4, characterized in that: A display (10) is provided on the front of the water storage tank (1), and the display (10) is electrically connected to the two water pressure sensors (7) and the liquid level meter (13).

8. The anti-cavitation device for a booster pump in a booster station according to claim 1, characterized in that: A connecting flange (18) is provided at the connection point between the water supply pipe (3) and the booster pump (2), and a sealing gasket (19) is provided on the surface of the connecting flange (18).

9. The anti-cavitation device for a booster pump in a booster station according to claim 1, characterized in that: The water storage tank (1) is made of stainless steel, and the water supply pipe (3) and the external pipe (4) are made of high-strength corrugated pipes.

10. The anti-cavitation device for a booster pump of a booster station according to claim 1, characterized in that: A bottom plate (14) is provided at the bottom of the water storage tank (1), and a plurality of fixing holes (15) are formed on the side of the bottom plate (14).

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