Exhaust valve optimizing device of centrifugal pump

By using pressure sensors and automatic exhaust devices in centrifugal pumps, the performance degradation and manual operation caused by air plugs in traditional centrifugal pumps are solved, and automated exhaust and efficient operation are achieved.

CN120140281APending Publication Date: 2025-06-13NANJING IRON & STEEL CO LTD
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Patent Information

Application Number
CN202510312425.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

In traditional centrifugal pumps, the flow and head decrease due to air plugs, and the exhaust valve needs to be manually operated, which increases the operating strength and may cause pump damage.

Method used

Pressure sensor is used to detect the pressure in the pump, and gas is automatically discharged through the electric telescopic rod and rotary roller disengagement device to avoid manual operation and prevent cavitation.

Benefits of technology

Automatic exhaust is achieved, operating efficiency is improved, pump damage and economic losses are avoided, and cavitation is prevented.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of fluid conveying machinery, in particular to a centrifugal pump exhaust valve optimizing device which comprises a base, a motor is arranged on the base, a centrifugal pump is further arranged on the base, an exhaust mechanism is arranged at the upper end of the centrifugal pump and comprises a pressure sensor, and the pressure sensor is arranged at the upper end of the base. And an electric telescopic rod is arranged at the lower end of the pressure sensor, an exhaust piston penetrates through the lower end of the electric telescopic rod, and a first connecting rod is further arranged at the lower end of the electric telescopic rod. And the gas enters the exhaust port and is separated from the device through the rotating roller, so that the gas in the centrifugal pump is exhausted, the situation that the gas exists in the centrifugal pump, normal use of the device is affected, the cavitation phenomenon is avoided, meanwhile, manual operation is avoided, and the operation efficiency is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of fluid conveying machinery, and specifically to an optimized device for the exhaust valve of a centrifugal pump. Background Art

[0002] During the operation of a centrifugal pump, due to the presence of air in the water pipe or pipeline system, this air will form air locks in the pump, resulting in a decrease in the flow rate and head of the pump, and even causing the pump to malfunction. At this time, the function of the exhaust valve of the centrifugal pump is to timely discharge the air to ensure the smooth and stable operation of the pump. Therefore, the exhaust valve is an indispensable and important component in the centrifugal pump system.

[0003] Traditional exhaust methods require operators to manually activate the exhaust valve to discharge the gas inside the centrifugal pump. During the operation of the centrifugal pump, the exhaust valve needs to be opened multiple times, increasing the work intensity of the operators. At the same time, due to the negligence of the operators, the failure to open the exhaust valve may cause damage to the centrifugal pump, and in severe cases, it may lead to the damage of the centrifugal pump, resulting in economic losses. Summary of the Invention

[0004] The purpose of the present invention is to provide an optimized device for the exhaust valve of a centrifugal pump. When the pressure sensor detects excessive pressure, the gas inside the centrifugal pump flows through the exposed second groove and enters the exhaust port, and then is discharged from the centrifugal pump through the rotating roller detachment device, preventing the presence of gas in the centrifugal pump from affecting the normal use of the device, avoiding cavitation phenomenon, and at the same time avoiding manual operation and improving the operation efficiency.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An optimized device for the exhaust valve of a centrifugal pump, including a base, on which a motor is provided, and a centrifugal pump is also provided on the base. An exhaust mechanism is provided at the upper end of the centrifugal pump; The exhaust mechanism includes a pressure sensor, which is arranged at the upper end of the base. An electric telescopic rod is arranged at the lower end of the pressure sensor. An exhaust piston penetrates through the lower end of the electric telescopic rod. A first connecting rod is also arranged at the lower end of the electric telescopic rod. Second connecting rods are respectively arranged at both ends of the first connecting rod. An exhaust disc is arranged at the upper end of the second connecting rod. A protective sleeve is also arranged at the lower end of the pressure sensor. An exhaust valve is arranged inside the protective sleeve. One end of the exhaust valve is provided with an exhaust port. A third connecting rod is arranged at the upper end of the exhaust port. A rotating roller is arranged at one end of the third connecting rod. A fan is arranged at one end of the rotating roller. Multiple groups of brushes are arranged at the other end of the rotating roller. A sealing detection column is also arranged at the upper end of the exhaust valve. A detection disc is arranged inside the sealing detection column. A sealing rod is arranged at the upper end of the exhaust piston.

[0006] Preferably, a first connection seat is provided at the upper end of the base. The first connection seat is connected to the centrifugal pump. A second connection seat is also provided at the upper end of the base, and the second connection seat is connected to the motor.

[0007] Preferably, a water inlet is provided at one end of the centrifugal pump, and a water outlet is also provided on one side of the centrifugal pump.

[0008] Preferably, an air storage tank is provided at the upper end of the airtight detection column. A scale is provided inside the airtight detection column, and the airtight detection column is designed with a transparent material.

[0009] Preferably, two air outlets are provided at the upper end of the protective cover, and one-way valves are provided inside both of the two air outlets.

[0010] Preferably, a first groove is provided at the contact position between the exhaust disc and the exhaust port, and the size is adapted to the exhaust port.

[0011] Preferably, an exhaust pipe is provided on one side of the exhaust port. The exhaust pipe wraps the rotating roller, and the third connecting rod penetrates through the exhaust pipe and is connected to the rotating roller.

[0012] Preferably, a second groove is provided at the contact position between the exhaust valve and the exhaust port. The size of the sealing rod is adapted to the second groove. The sealing rod penetrates through the protective cover and the exhaust valve respectively. Sealing rings are provided at the contact positions between the sealing rod and the protective cover and the exhaust valve.

[0013] Preferably, the size of the exhaust piston is adapted to the inside of the exhaust valve, and the size of the exhaust disc is adapted to the inside of the protective cover. Both the exhaust piston and the exhaust disc are designed with arc surfaces.

[0014] Preferably, a first hole is provided at the contact position between the upper end of the centrifugal pump and the protective cover. The size of the first hole is adapted to the exhaust piston. The upper end of the second connecting rod penetrates through the centrifugal pump.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: When the pressure sensor of the present invention detects that the pressure is too high, the gas inside the centrifugal pump flows through the exposed second groove and enters the exhaust port, and then escapes from the device through the rotating roller, so as to discharge the gas in the centrifugal pump, prevent the gas from existing in the centrifugal pump, affect the normal use of the device, avoid causing cavitation phenomenon, and at the same time avoid manual operation and improve the operation efficiency. In the present invention, when the exhaust piston moves, it drives the sealing rod to move, covering the second groove to prevent the gas inside the exhaust valve from escaping through the second groove. However, the gas inside the exhaust valve enters the gas storage tank through the airtight detection column. By observing the relationship between the detection disk and the scale inside the airtight detection column, it can be determined whether there is sufficient gas passing through the inside of the airtight detection column, thereby detecting whether the inside of the exhaust valve is in a sealed state, ensuring that the mechanism can operate normally, and avoiding economic losses caused by device damage.

[0016] In the present invention, when the second connecting rod moves, it drives the exhaust disk to move. The movement of the exhaust disk discharges the air inside the protective sleeve from the air outlet, making the inside of the protective sleeve maintain a relatively vacuum environment, preventing a large amount of moisture or other impurities in the air or the gas discharged from the centrifugal pump from corroding the outer wall of the exhaust valve, affecting the service life of the exhaust valve, and causing economic losses. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall structure of the present invention; Figure 3 is a schematic diagram of a part of the structure of the present invention, one of them; Figure 4 is of the present invention Figure 3 enlarged view of part A; Figure 5 is a schematic diagram of the exhaust mechanism structure of the present invention; Figure 6 is a schematic diagram of a part of the structure of the present invention, the second one; Figure 7 is of the present invention Figure 6 enlarged view of part B; Figure 8 is a schematic diagram of the airtight detection column structure of the present invention.

[0018] In the figure: 1. Base; 11. Centrifugal pump; 111. First connecting seat; 112. Second connecting seat; 113. Motor; 12. Water inlet; 121. Water outlet; 2. Exhaust mechanism; 21. Pressure sensor; 211. Protective sleeve; 221. Electric telescopic rod; 222. Airtight detection column; 223. Gas storage tank; 224. First connecting rod; 225. Second connecting rod; 226. Detection disk; 23. Exhaust valve; 231. Air outlet; 24. Exhaust piston; 241. Sealing rod; 25. Exhaust disk; 26. Exhaust port; 261. Third connecting rod; 262. Exhaust pipe; 263. Fan; 264. Rotating roller; 265. Brush. Detailed Embodiments

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0020] The present invention provides an optimized device for a centrifugal pump exhaust valve, including a base 1, on which a motor 113 is provided, and a centrifugal pump 11 is also provided on the base 1. An exhaust mechanism 2 is provided at the upper end of the centrifugal pump 11. The exhaust mechanism 2 includes a pressure sensor 21, which is provided at the upper end of the base 1. A telescopic electric rod 221 is provided at the lower end of the pressure sensor 21. An exhaust piston 24 penetrates through the lower end of the telescopic electric rod 221. A first connecting rod 224 is also provided at the lower end of the telescopic electric rod 221. Second connecting rods 225 are respectively provided at both ends of the first connecting rod 224. An exhaust disc 25 is provided at the upper ends of the second connecting rods 225. A protective sleeve 211 is also provided at the lower end of the pressure sensor 21. An exhaust valve 23 is provided inside the protective sleeve 211. An exhaust port 26 is provided at one end of the exhaust valve 23. A third connecting rod 261 is provided at the upper end of the exhaust port 26. A rotating roller 264 is provided at one end of the third connecting rod 261. A fan 263 is provided at one end of the rotating roller 264. Multiple groups of brushes 265 are provided at the other end of the rotating roller 264. A sealing detection column 222 is also provided at the upper end of the exhaust valve 23. A detection disc 226 is provided inside the sealing detection column 222. A sealing rod 241 is provided at the upper end of the exhaust piston 24.

[0021] This device is enabled at the initial startup or when restarting after a long-term shutdown. The air pressure inside the centrifugal pump 11 is detected by the pressure sensor 21, and a signal is transmitted to the microprocessor controller. The microprocessor controller analyzes the air pressure change signal and controls the movement of the electric telescopic rod 221. When the electric telescopic rod 221 contracts, it drives the exhaust piston 24 to move. The movement of the exhaust piston 24 exposes the second groove on the exhaust valve 23. The gas inside the centrifugal pump 11 flows through the exposed second groove and enters the exhaust port 26, and then detaches from the device through the rotating roller 264, thereby exhausting the gas in the centrifugal pump 11, preventing the presence of gas in the centrifugal pump 11 from affecting the normal use of the device and avoiding cavitation. At the same time, when the pressure detected by the pressure sensor 21 is too high, the device is started, avoiding manual operation and improving operation efficiency. At the same time, when the exhaust piston 24 moves, it drives the sealing rod 241 to move to cover the second groove, preventing the gas inside the exhaust valve 23 from detaching from the second groove. However, the gas inside the exhaust valve 23 enters the gas storage tank 223 through the airtight detection column 222. By observing the relationship between the detection disk 226 inside the airtight detection column 222 and the scale, it can be determined whether there is enough gas passing through the airtight detection column 222, thereby detecting whether the inside of the exhaust valve 23 is in an airtight state, ensuring that the mechanism can work normally and avoiding economic losses caused by device damage.

[0022] At the same time, the magnitude of the air pressure value inside the centrifugal pump 11 is detected by the pressure sensor 21, and the moving distance of the electric telescopic rod 221 is adjusted, thereby controlling the moving distance of the exhaust piston 24 and further adjusting the exposure degree of the second groove inside the exhaust valve 23, so as to adjust the detachment rate from the second groove. At the same time, the gas detaching from the second groove detaches from the device through the exhaust pipe 262. When the gas flows inside the exhaust pipe 262, it drives the fan 263 to rotate. By whether the fan 263 rotates, it can be judged whether the device is working normally, discharging the gas inside the centrifugal pump 11. At the same time, the rotation of the fan 263 drives the rotation of the rotating roller 264, and the rotation of the rotating roller 264 drives the rotation of the brush 265. The rotation of the brush 265 cleans the inner wall of the exhaust pipe 262, preventing impurities in the gas from blocking the exhaust pipe 262 during long-term operation of the device and affecting the normal operation of the device.

[0023] At the same time, when the electric telescopic rod 221 moves, it drives the first connecting rod 224 to move. The movement of the first connecting rod 224 drives the second connecting rod 225 to move. The movement of the second connecting rod 225 drives the exhaust disk 25 to move. The movement of the exhaust disk 25 discharges the air inside the protective sleeve 211 from the air outlet 231, making the inside of the protective sleeve 211 maintain a relatively vacuum environment, avoiding corrosion of the outer wall of the exhaust valve 23 caused by a large amount of moisture or other impurities in the air or the gas discharged from the centrifugal pump 11, affecting the service life of the exhaust valve 23 and causing economic losses.

[0024] In an alternative embodiment, a first connection base 111 is provided at the upper end of the base 1. The first connection base 111 is connected to the centrifugal pump 11. A second connection base 112 is also provided at the upper end of the base 1. The second connection base 112 is connected to the motor 113.

[0025] It should be noted that the base 1 is fixedly connected to the centrifugal pump 11 through the first connection base 111 and is also fixedly connected to the motor 113 through the second connection base 112, avoiding the movement of the centrifugal pump 11 and the motor 113 due to vibration during operation, which may cause damage to the rotating shaft and further result in economic losses.

[0026] In an alternative embodiment, a water inlet 12 is provided at one end of the centrifugal pump 11, and a water outlet 121 is also provided on one side of the centrifugal pump 11.

[0027] It should be noted that the fluid to be transported enters the centrifugal pump 11 from the water inlet 12 and exits the centrifugal pump 11 through the water outlet 121.

[0028] In an alternative embodiment, an air storage tank 223 is provided at the upper end of the airtight detection column 222. The airtight detection column 222 is internally provided with graduations and is designed with a transparent material.

[0029] It should be noted that when the exhaust piston 24 moves upward, the gas inside the exhaust valve 23 is discharged from the airtight detection column 222 into the air storage tank 223. By observing the movement of the detection disc 226 inside the airtight detection column 222, it can be observed whether the exhaust valve 23 is in an airtight state, thus ensuring the normal operation of the exhaust valve 23. At the same time, when the exhaust piston 24 moves upward to the highest position, all the gas is discharged into the airtight detection column 222 and then enters the air storage tank 223 through the airtight detection column 222. The detection disc 226 is lifted a certain distance in the air storage tank 223 to ensure that the gas flows from the airtight detection column 222 into the air storage tank 223. When the electric telescopic rod 221 extends, the electric telescopic rod 221 drives the exhaust piston 24 to move, discharging the gas inside the air storage tank 223 from the airtight detection column 222, and at the same time, the detection disc 226 moves downward to the initial position.

[0030] In an alternative embodiment, two groups of air outlets 231 are provided at the upper end of the protective sleeve 211, and one-way valves are provided inside both groups of the air outlets 231.

[0031] It should be noted that when the electric telescopic rod 221 contracts, it drives the exhaust piston 24 to move. The movement of the exhaust piston 24 drives the first connecting rod 224 to move. The movement of the first connecting rod 224 drives the second connecting rod 225 to move. The movement of the second connecting rod 225 drives the exhaust disc 25 to move. The movement of the exhaust disc 25 discharges the gas inside the protective sleeve 211 through the air outlet 231. At the same time, a one-way valve is provided inside the air outlet 231 to ensure that the outside gas cannot enter, ensuring that the inside of the protective sleeve 211 is in a relatively vacuum environment, protecting the exhaust valve 23, preventing the outside gas from corroding the outer wall of the exhaust valve 23, affecting the normal operation of the exhaust valve 23, and extending the service life of the exhaust valve 23.

[0032] In an optional embodiment, a first groove is provided at the contact position between the exhaust disc 25 and the exhaust port 26, and its size is adapted to the exhaust port 26.

[0033] It should be noted that when the exhaust disc 25 moves upward and contacts the exhaust port 26, the size of the first groove is adapted to the exhaust port 26, ensuring that the movement of the exhaust disc 25 will not damage the exhaust port 26.

[0034] In an optional embodiment, an exhaust pipe 262 is provided on one side of the exhaust port 26. The exhaust pipe 262 wraps the rotating roller 264, and the third connecting rod 261 passes through the exhaust pipe 262 and is connected to the rotating roller 264.

[0035] It should be noted that the gas in the centrifugal pump 11 is discharged into the exhaust port 26 through the second groove on the exhaust valve 23 and then discharged to the outside through the exhaust pipe 262. A rotating roller 264 is provided inside the exhaust pipe 262. The discharge of the gas in the exhaust pipe 262 drives the fan 263 on one side of the rotating roller 264 to rotate. The rotation of the fan 263 drives the brush 265 to rotate. The rotation of the fan 263 detects the normal operation of the device, and the rotation of the brush 265 cleans the inner wall of the exhaust pipe 262, preventing the inner wall of the exhaust pipe 262 from being blocked after long-term operation and affecting the normal operation of the device.

[0036] In an optional embodiment, a second groove is provided at the contact position between the exhaust valve 23 and the exhaust port 26. The size of the sealing rod 241 is adapted to the second groove. The sealing rod 241 passes through the protective sleeve 211 and the exhaust valve 23 respectively. Sealing rings are provided at the contact positions between the sealing rod 241 and the protective sleeve 211 and the exhaust valve 23.

[0037] It should be noted that the movement of the exhaust piston 24 drives the movement of the sealing rod 241. At the same time, the sliding of the sealing rod 241 will not cause gas leakage inside the exhaust valve 23, so that the gas inside the exhaust valve 23 neither escapes from the second groove nor leaks when the sealing rod 241 slides. All the gas enters the air storage tank 223 through the closed detection column 222, so as to observe whether the inside of the exhaust valve 23 is in a closed state and ensure the normal use of the device.

[0038] In an optional embodiment, the size of the exhaust piston 24 is adapted to the inside of the exhaust valve 23, the size of the exhaust disc 25 is adapted to the inside of the protective sleeve 211, and both the exhaust piston 24 and the exhaust disc 25 are designed with arc surfaces.

[0039] It should be noted that the exhaust piston 24 has the same size as the exhaust valve 23 to ensure the isolation between the inside of the exhaust valve 23 and the inside of the centrifugal pump 11. The size of the exhaust disc 25 is adapted to the protective sleeve 211 to ensure that all the gas inside the protective sleeve 211 is discharged when the exhaust disc 25 moves, ensuring that the inside of the protective sleeve 211 is in a relatively vacuum environment to protect the exhaust valve 23.

[0040] In an optional embodiment, a first hole is provided at the contact between the upper end of the centrifugal pump 11 and the protective sleeve 211. The size of the first hole is adapted to the exhaust piston 24, and the upper end of the second connecting rod 225 penetrates through the centrifugal pump 11.

[0041] It should be noted that the gas in the centrifugal pump 11 is discharged into the inside of the exhaust valve 23 through the first hole and flows into the exhaust port 26 through the exposed part of the second groove when the exhaust piston 24 moves.

[0042] Working principle: This device is enabled at the initial startup or when restarting after a long-term shutdown. The air pressure inside the centrifugal pump 11 is detected by the pressure sensor 21, and the signal is transmitted to the microprocessor controller. The microprocessor controller analyzes the air pressure change signal and controls the movement of the electric telescopic rod 221. When the electric telescopic rod 221 contracts, it drives the exhaust piston 24 to move. The movement of the exhaust piston 24 exposes the second groove on the exhaust valve 23. The gas inside the centrifugal pump 11 flows through the exposed second groove and enters the exhaust port 26, and then disengages from the device through the rotating roller 264, thereby exhausting the gas in the centrifugal pump 11, preventing the presence of gas in the centrifugal pump 11 from affecting the normal use of the device and avoiding cavitation. At the same time, when the exhaust piston 24 moves, it drives the sealing rod 241 to move to cover the second groove and prevent the gas inside the exhaust valve 23 from disengaging from the second groove. However, the gas inside the exhaust valve 23 enters the gas storage tank 223 through the airtight detection column 222. By observing the relationship between the detection disc 226 inside the airtight detection column 222 and the scale, it can be determined whether there is enough gas passing through the airtight detection column 222, thereby detecting whether the inside of the exhaust valve 23 is in an airtight state, ensuring that the mechanism can work normally and avoiding economic losses caused by device damage.

[0043] At the same time, the pressure sensor 21 detects the magnitude of the air pressure value inside the centrifugal pump 11, adjusts the moving distance of the electric telescopic rod 221, thereby controlling the moving distance of the exhaust piston 24, and further adjusting the exposure degree of the second groove inside the exhaust valve 23, so as to adjust the disengagement rate from the second groove. At the same time, the gas disengaging from the second groove disengages from the device through the exhaust pipe 262. When the gas flows inside the exhaust pipe 262, it drives the fan 263 to rotate. By whether the fan 263 rotates, it can be judged whether the device is working normally, discharging the gas inside the centrifugal pump 11. At the same time, the rotation of the fan 263 drives the rotating roller 264 to rotate, and the rotation of the rotating roller 264 drives the brush 265 to rotate. The rotation of the brush 265 cleans the inner wall of the exhaust pipe 262, preventing impurities in the gas from blocking the exhaust pipe 262 during long-term operation of the device and affecting the normal operation of the device.

[0044] At the same time, when the electric telescopic rod 221 moves, it drives the first connecting rod 224 to move. The movement of the first connecting rod 224 drives the second connecting rod 225 to move. The movement of the second connecting rod 225 drives the exhaust disc 25 to move. The movement of the exhaust disc 25 discharges the air inside the protective sleeve 211 from the air outlet 231, making the inside of the protective sleeve 211 maintain a relatively vacuum environment, avoiding corrosion of the outer wall of the exhaust valve 23 caused by a large amount of moisture or other impurities in the air or the gas discharged from the centrifugal pump 11, affecting the service life of the exhaust valve 23 and causing economic losses.

[0045] The base 1 is fixedly connected to the centrifugal pump 11 through the first connecting seat 111, and at the same time is fixedly connected to the motor 113 through the second connecting seat 112, avoiding the movement of the centrifugal pump 11 and the motor 113 due to vibration during operation. The fluid to be transported enters the centrifugal pump 11 from the water inlet 12 and exits the centrifugal pump 11 through the water outlet 121. The gas inside the exhaust valve 23 is discharged from the closed detection column 222 to the gas storage tank 223 by the upward movement of the exhaust piston 24. Whether the exhaust valve 23 is in a closed state can be observed by observing the movement of the detection disk 226 inside the closed detection column 222, so as to ensure the normal operation of the exhaust valve 23. At the same time, when the exhaust piston 24 moves up to the highest position, all the gas is discharged into the closed detection column 222 and enters the gas storage tank 223 through the closed detection column 222. The detection disk 226 is lifted a certain distance in the gas storage tank 223 to ensure that the gas flows from the closed detection column 222 into the gas storage tank 223. When the electric telescopic rod 221 extends, the electric telescopic rod 221 drives the exhaust piston 24 to move, discharging the gas inside the gas storage tank 223 from the closed detection column 222. At the same time, the detection disk 226 moves down to the initial position. When the electric telescopic rod 221 contracts, it drives the exhaust piston 24 to move. The movement of the exhaust piston 24 drives the movement of the first connecting rod 224. The movement of the first connecting rod 224 drives the movement of the second connecting rod 225. The movement of the second connecting rod 225 drives the movement of the exhaust disk 25. The movement of the exhaust disk 25 discharges the gas inside the protective sleeve 211 through the air outlet 231. At the same time, a one-way valve is provided inside the air outlet 231 to ensure that the outside gas cannot enter, ensuring that the inside of the protective sleeve 211 is in a relatively vacuum environment to protect the exhaust valve 23. When the exhaust disk 25 moves upward, it contacts the exhaust port 26. The size of the first groove is adapted to the exhaust port 26 to ensure that the movement of the exhaust disk 25 will not damage the exhaust port 26. The movement of the exhaust piston 24 drives the movement of the sealing rod 241. At the same time, the sliding of the sealing rod 241 will not cause the leakage of the gas inside the exhaust valve 23. Thus, the gas inside the exhaust valve 23 neither escapes from the second groove nor leaks when the sealing rod 241 slides, and all enters the gas storage tank 223 through the closed detection column 222, so as to observe whether the inside of the exhaust valve 23 is in a closed state.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal pump exhaust valve optimization device, comprising a base (1), characterized in that: The base (1) is provided with a motor (113), the base (1) is also provided with a centrifugal pump (11), and the upper end of the centrifugal pump (11) is provided with an exhaust mechanism (2); The exhaust mechanism (2) comprises a pressure sensor (21), the pressure sensor (21) being arranged at the upper end of the base (1), an electric telescopic rod (221) being arranged at the lower end of the pressure sensor (21), an exhaust piston (24) penetrating the lower end of the electric telescopic rod (221), a first connecting rod (224) being arranged at the lower end of the electric telescopic rod (221), second connecting rods (225) being arranged at both ends of the first connecting rod (224), an exhaust disk (25) being arranged at the upper end of the second connecting rod (225), a protective cover (211) being arranged at the lower end of the pressure sensor (21), and the protective cover (211) being arranged at the lower end of the pressure sensor (21). 11) An exhaust valve (23) is arranged inside, an exhaust port (26) is arranged at one end of the exhaust valve (23), a third connecting rod (261) is arranged at the upper end of the exhaust port (26), a rotating roller (264) is arranged at one end of the third connecting rod (261), a fan (263) is arranged at one end of the rotating roller (264), and a plurality of groups of brushes (265) are arranged at the other end of the rotating roller (264), a sealed detection column (222) is also arranged at the upper end of the exhaust valve (23), a detection disk (226) is arranged inside the sealed detection column (222), and a sealing rod (241) is also arranged at the upper end of the exhaust piston (24).

2. A centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: A first connection seat (111) is provided at the upper end of the base (1), the first connection seat (111) being connected to the centrifugal pump (11), and a second connection seat (112) is also provided at the upper end of the base (1), the second connection seat (112) being connected to the motor (113).

3. The centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: A water inlet (12) is provided at one end of the centrifugal pump (11), and a water outlet (121) is also provided at one side of the centrifugal pump (11).

4. The centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: A gas storage tank (223) is provided at the upper end of the airtight detection column (222), a scale is provided inside the airtight detection column (222), and the airtight detection column (222) is designed with a transparent material.

5. The centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: Two groups of air outlets (231) are provided at the upper end of the protective sleeve (211), and one-way valves are provided inside the two groups of air outlets (231).

6. The centrifugal pump exhaust valve optimization device according to claim 5, characterized in that: A first groove is provided at the contact point between the exhaust plate (25) and the exhaust port (26), and the size of the groove matches that of the exhaust port (26).

7. The centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: An exhaust pipe (262) is provided on one side of the exhaust port (26), the exhaust pipe (262) wraps around the rotating roller (264), and the third connecting rod (261) passes through the exhaust pipe (262) and is connected to the rotating roller (264).

8. The centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: A second groove is provided at the contact point between the exhaust valve (23) and the exhaust port (26); the size of the sealing rod (241) is adapted to the second groove; the sealing rod (241) passes through the protective sleeve (211) and the exhaust valve (23) respectively; and a sealing ring is provided at the contact point between the sealing rod (241), the protective sleeve (211) and the exhaust valve (23).

9. The centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: The size of the exhaust piston (24) is adapted to the interior of the exhaust valve (23), the size of the exhaust disc (25) is adapted to the interior of the protective sleeve (211), and the exhaust piston (24) and the exhaust disc (25) are all designed with curved surfaces.

10. The centrifugal pump exhaust valve optimization device according to claim 1, characterized in that: A first hole is provided at the contact point between the upper end of the centrifugal pump (11) and the protective sleeve (211); the size of the first hole is adapted to the exhaust piston (24); and the upper end of the second connecting rod (225) passes through the centrifugal pump (11).