Efficient transmission centrifugal pump

Abstract

The invention relates to the field of centrifugal pumps, and discloses an efficient transmission centrifugal pump which comprises a shell mechanism, a power mechanism, a centrifugal pump mechanism and a control system, the shell mechanism plays a role in fixing and supporting, the power mechanism is fixedly connected to the shell mechanism, and the centrifugal pump mechanism is fixedly connected to the shell mechanism; the control system controls operation and working processes of the power mechanism and the centrifugal pump mechanism, a plurality of vibrators are placed in an easy-to-jam area of the centrifugal pump to clean impurities of the centrifugal pump, and the flow of flowing out of the centrifugal pump is detected through the sensor, so that the centrifugal pump is controlled to be in a closed state. The control system controls the centrifugal pump mechanism to conduct vibration impurity cleaning according to the detection result, cleaning can be conducted in the operation process of the centrifugal pump, the downtime and manual intervention are reduced, the working efficiency is improved, silt is cleaned in time, abrasion to the pump can be reduced, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of centrifugal pumps, and specifically to a high-efficiency transmission centrifugal pump. Background Art

[0002] The centrifugal pump drives the impeller to rotate at high speed through an electric motor, so that the liquid is thrown from the center of the impeller to the edge under the action of centrifugal force, and then collected and discharged by the pump casing, thereby realizing the transportation and pressurization of the liquid.

[0003] In terms of the cleaning of centrifugal pumps, there are many deficiencies in the existing technologies. The traditional manual cleaning method after shutdown not only requires stopping the operation of the equipment, but also relies on manual labor for cleaning, so it is impossible to perform real-time cleaning. Although some high-end equipment is equipped with an automatic flushing function, most of them are based on fluid flushing and lack mechanical vibration cleaning. Generally speaking, traditional centrifugal pumps either use manual cleaning after shutdown or use a single high-pressure water flushing. This method is inefficient, requires a large amount of manpower, material resources and time costs, and will also affect the normal operation of the equipment during the shutdown cleaning period of the equipment, resulting in obstacles to the production or work process, and there are obvious disadvantages in terms of cost and efficiency. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the deficiencies of the existing technologies, the present invention provides a high-efficiency transmission centrifugal pump, which has the advantages that the control system can independently judge whether to use vibration cleaning or a combination of vibration cleaning and high-pressure water flow cleaning according to the flow rate, can perform real-time non-stop cleaning, extend the service life of the centrifugal pump, improve work efficiency, reduce manual intervention and reduce energy consumption, etc., and solves the problems in the above background art.

[0005] (II) Technical Solutions To achieve the above objectives, the present invention provides the following technical solutions: A high-efficiency transmission centrifugal pump includes a housing mechanism, a power mechanism, a centrifugal pump mechanism and a control system. The housing mechanism plays a role of fixing and supporting. The power mechanism is fixedly connected to the housing mechanism. The centrifugal pump mechanism is fixedly connected to the housing mechanism. The control system controls the operation and working process of the power mechanism and the centrifugal pump mechanism.

[0006] Preferably, the housing mechanism includes a first fixed platform, on which a second fixed platform and a second fixing seat are fixedly connected. The power mechanism is fixedly connected to the second fixing seat. A first fixing seat and a high-pressure water pump are fixedly connected to the second fixed platform. The centrifugal pump mechanism is fixedly connected to the first fixing seat.

[0007] Preferably, the centrifugal pump mechanism includes a pump body fixedly connected to a first fixing seat. A rotating shaft is movably connected inside the pump body and rotates within the centrifugal pump. An impeller is fixedly connected to the rotating shaft, and a circular vibrator is fixedly connected to the impeller. A suction port is fixedly connected to the pump body, and a vibrator is fixedly connected to the suction port. A discharge port is fixedly connected to the pump body, and a flow sensor and a vibrator are fixedly connected to the discharge port. A spray head is fixedly connected to the pump body. A water pipe is fixedly connected to one side of the spray head, and the water pipe is fixedly connected to a high-pressure water pump. An inlet pipe is fixedly connected to the high-pressure water pump, and a water storage tank is fixedly connected to one side of the inlet pipe. A solenoid valve is fixedly connected to the water pipe.

[0008] Preferably, the power mechanism includes a motor fixedly connected to a second fixing seat. A rotating shaft is fixedly connected to the motor, and a bearing box is fixedly connected to the rotating shaft. A sealing ring is fixedly connected to one side of the rotating shaft.

[0009] Preferably, the power mechanism and the centrifugal pump mechanism are connected to the control system, and both the power mechanism and the centrifugal pump mechanism are modularly designed and can be freely installed and selected.

[0010] Preferably, it includes the following steps: The detection range of the flow sensor is L1, L2, and L3, where L1 represents the flow rate during normal operation, L2 represents the detected flow rate lower than 70% of the normal flow rate; L3 represents the detected sudden drop in flow rate (the flow rate reduction amplitude within a short time is greater than 5% of the normal flow rate); The vibration time range of the circular vibrator and the vibrator is H1, H2, where H1 represents only vibration cleaning, and the vibration time is an 8-minute countdown; H2 represents a cleaning method combining vibration cleaning and high-pressure water flow cleaning, and the cleaning time is a 3-minute countdown; Install and fix the centrifugal pump, turn on the power for debugging to ensure the normal operation of the equipment. After the debugging is completed, pour liquid into the pump until the liquid overflows from the exhaust hole at the top of the pump casing to remove the air inside the pump, and then start the motor to start normal operation. At the same time, the control system controls the flow sensor to continuously detect the flow rate at the discharge port. At this time, the detected flow rate at the discharge port is L1; The control system performs vibration cleaning on the centrifugal pump according to the detection result of the flow sensor; The control system performs cleaning on the centrifugal pump by combining vibration cleaning and high-pressure water flow cleaning on the centrifugal pump according to the detection result of the flow sensor.

[0011] Preferably, the control system performs vibration cleaning on the centrifugal pump according to the detection result of the flow sensor. Specifically: When the control system receives that the flow rate detected by the flow sensor is L2 and the flow rate decreases at a uniform speed, the control system determines that the factor affecting the flow rate in the centrifugal pump is the accumulation of small particle sediment. The control system controls the circular vibrator and the vibrator to start working, so that the pump body, impeller, suction port and discharge port perform high-frequency and low-amplitude vibrations. When the circular vibrator and the vibrator work, the centrifugal pump operates at a normal working frequency. Water flows in from the suction port, and the small particle sediment shaken off at the suction port, impeller, suction port and discharge port is carried out of the centrifugal pump by the flowing water. The circular vibrator and the vibrator maintain the working time of H1. At the same time, the control system controls the flow sensor to detect the flow rate of the discharge port in real time. Specifically: When the countdown of the H1 time ends and the control system receives that the flow rate of the discharge port detected by the flow sensor reaches the level of L1, the control system determines that the sediment in the centrifugal pump has been cleaned up, the cleaning is over, and the submersible pump continues to work; When the countdown of the H1 time ends and the control system receives that the flow rate of the discharge port detected by the flow sensor still does not reach the level of L2, the control system determines that the vibration cleaning is incomplete and performs secondary cleaning. If the flow rate still does not recover to L1 after the secondary cleaning, a cleaning method combining vibration cleaning and high-pressure water flow cleaning is adopted for cleaning until the flow rate recovers to L1 and the cleaning is over.

[0012] Preferably, the control system cleans the centrifugal pump by combining vibration cleaning and high-pressure water flow cleaning according to the detection result of the flow sensor. Specifically: When the secondary vibration cleaning is incomplete or the detection result of the flow sensor is L3, the control system determines that the dirt in the centrifugal pump at this time is large particle block dirt. The control system controls the centrifugal pump mechanism to clean by combining vibration cleaning and high-pressure water flow cleaning. During the cleaning process, the centrifugal pump operates at a normal working frequency. The control system controls the circular vibrator and the vibrator to work and maintains the H2 time. At the same time, the control system controls the high-pressure water pump to start working, the solenoid valve opens, the high-pressure water pump extracts water flow from the storage tank through the water inlet pipe, pressurizes the extracted water flow and injects it into the centrifugal pump from the water pipe, sprays out from the nozzle, and comprehensively flushes the impeller, pump body, suction port and discharge port of the centrifugal pump. The dirt after flushing is carried by the water flow entering from the suction port and discharged from the centrifugal pump through the discharge port; When the countdown of H2 ends and the control system receives that the flow rate of the discharge port detected by the flow sensor reaches the level of L1, the control system determines that the sediment in the centrifugal pump has been cleaned up and the cleaning is over; When the countdown of H2 ends and the flow rate detected by the flow sensor at the discharge port of the control system has not yet recovered to the level of L1, the control system determines that the cleaning is incomplete and performs secondary cleaning. If the flow rate still does not recover to L1 after the secondary cleaning, the control system controls the motor to stop working and the centrifugal pump to stop working, reducing damage to the centrifugal pump and alarming the technical personnel to come for maintenance.

[0013] (III) Beneficial Effects By using a flow sensor to continuously detect the flow rate at the discharge port of the centrifugal pump and combining a high-frequency low-amplitude vibrator and a high-pressure water flushing system, the present invention can complete sediment cleaning during the normal operation of the centrifugal pump, significantly reducing the downtime and improving the work efficiency.

[0014] The present invention adopts an intelligent control system, which automatically selects the cleaning method of vibration cleaning or the combination of vibration and high-pressure water flushing according to the flow rate change, ensuring the cleaning effect while reducing energy consumption; through modular design, the service life of the centrifugal pump is extended and the maintenance cost is reduced; the overall solution realizes automatic and intelligent sediment cleaning, reduces manual intervention, improves the reliability and economy of the equipment, is applicable to various working conditions, and has a wide application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is of the present invention Figure 1 is a schematic diagram of the structure of A in; Figure 3 is a schematic diagram of the structure of the centrifugal pump mechanism of the present invention; Figure 4 is another schematic diagram of the structure of the centrifugal pump mechanism of the present invention; Figure 5 is a schematic sectional view of the structure of the centrifugal pump mechanism of the present invention.

[0016] In the figure: 1. Housing mechanism; 101. First fixed platform; 102. Second fixed platform; 103. First fixing seat; 104. Second fixing seat; 2. Power mechanism; 201. Motor; 202. Bearing box; 203. Rotating shaft; 204. Sealing ring; 3. Centrifugal pump mechanism; 301. Pump body; 302. Impeller; 303. Circular vibrator; 304. Suction port; 305. Vibrator; 306. Discharge port; 307. Flow sensor; 308. High-pressure water pump; 309. Water pipe; 310. Solenoid valve; 311. Inlet water pipe; 312. Sprinkler head; 313. Water storage tank. DETAILED DESCRIPTION OF THE INVENTION

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1, a preferred embodiment of the high-efficiency transmission centrifugal pump provided by the present invention is as Figures 1 to 5 shown: A high-efficiency transmission centrifugal pump includes a housing mechanism 1, a power mechanism 2, a centrifugal pump mechanism 3, and a control system.

[0019] The housing mechanism 1 includes a first fixed platform 101, on which a second fixed platform 102 and a second fixing seat 104 are fixedly connected. The power mechanism 2 is fixedly connected to the second fixing seat 104. A first fixing seat 103 and a high-pressure water pump 308 are fixedly connected to the second fixed platform 102. The centrifugal pump mechanism 3 is fixedly connected to the first fixing seat 103.

[0020] The centrifugal pump mechanism 3 includes a pump body 301, which is fixedly connected to the first fixing seat 103. A rotating shaft 203 is movably connected inside the pump body 301 and rotates inside the centrifugal pump. An impeller 302 is fixedly connected to the rotating shaft 203, and a circular vibrator 303 is fixedly connected to the impeller 302. A suction port 304 is fixedly connected to the pump body 301, and a vibrator 305 is fixedly connected to the suction port 304 for vibrating and cleaning the sediment and impurities accumulated on the suction port 304. A discharge port 306 is fixedly connected to the pump body 301, and a flow sensor 307 and a vibrator 305 are fixedly connected to the discharge port 306 for detecting the water flow discharge volume of the centrifugal pump. A spray head 312 is fixedly connected to the pump body 301. A water pipe 309 is fixedly connected to one side of the spray head 312. The water pipe 309 is fixedly connected to the high-pressure water pump 308. An inlet water pipe 311 is fixedly connected to the high-pressure water pump 308. A water storage tank 313 is fixedly connected to one side of the inlet water pipe 311. A solenoid valve 310 is fixedly connected to the water pipe 309 for controlling the opening and closing of the high-pressure water flow to wash the centrifugal pump, and both the circular vibrator 303 and the vibrator 305 are high-frequency and low-amplitude vibrators.

[0021] The power mechanism 2 includes a motor 201, which is fixedly connected to the second fixing seat 104 and is used to provide power for the centrifugal pump mechanism 3. A rotating shaft 203 is fixedly connected to the motor 201, and a bearing box 202 is fixedly connected to the rotating shaft 203, which plays a role in supporting and protecting the rotating shaft 203. A sealing ring 204 is fixedly connected to one side of the rotating shaft 203, which plays a role in sealing and preventing water leakage.

[0022] The power mechanism 2 and the centrifugal pump mechanism 3 are connected to the control system, and both the power mechanism 2 and the centrifugal pump mechanism 3 are modularly designed and can be freely installed and selected.

[0023] Example 2, based on Example 1, a preferred embodiment of the high-efficiency transmission centrifugal pump provided by the present invention is as Figures 1 to 5 shown: A high-efficiency transmission centrifugal pump is equipped with high-frequency and low-amplitude vibrators at each impurity accumulation point of the centrifugal pump. The control system judges the accumulation of impurity dirt in the centrifugal pump by receiving the flow rate at the discharge port 306 of the centrifugal pump detected by the flow sensor 307, and performs local vibration cleaning or a cleaning method combining vibration cleaning and high-pressure water flow cleaning according to the detection result. Cleaning can be carried out during the operation of the centrifugal pump, reducing downtime, reducing manual intervention, improving work efficiency, and extending service life.

[0024] The detection range of the flow sensor 307 is L1, L2, and L3, where L1 represents the flow rate during normal operation, L2 represents the detected flow rate lower than 70% of the normal flow rate; L3 represents the detected sudden drop in flow rate (the flow rate decreases by more than 5% of the normal flow rate within a short period of time); The vibration time range of the circular vibrator 303 and the vibrator 305 is H1, H2, where H1 represents only vibration cleaning, and the vibration time is an 8-minute countdown; H2 represents a cleaning method combining vibration cleaning and high-pressure water flow cleaning, and the cleaning time is a 3-minute countdown; Install and fix the centrifugal pump, turn on the power supply for debugging to ensure the normal operation of the equipment. After the debugging is completed, pour liquid into the pump until the liquid overflows from the exhaust hole at the top of the pump casing to remove the air in the pump, and start the motor 201 to start normal operation. At the same time, the control system controls the flow sensor 307 to detect the flow rate at the discharge port 306 in real time. At this time, the detected flow rate at the discharge port 306 is L1; The control system performs vibration cleaning on the centrifugal pump according to the detection result of the flow sensor 307. Specifically: When the control system receives that the flow rate detected by the flow sensor 307 is L2 and the flow rate decreases at a uniform speed, the control system determines that the factor affecting the flow rate in the centrifugal pump is the accumulation of small particle sediment. The control system controls the circular vibrator 303 and the vibrator 305 to start working, so that the pump body 301, the impeller 302, the suction port 304 and the discharge port 306 perform high-frequency and low-amplitude vibrations. When the circular vibrator 303 and the vibrator 305 work, the centrifugal pump works at a normal working frequency. Water flows in from the suction port 304, and the small particle sediment oscillated at the suction port 304, the impeller 302, the suction port 304 and the discharge port 306 is carried out of the centrifugal pump by the flowing water. The circular vibrator 303 and the vibrator 305 maintain the working time of H1. At the same time, the control system controls the flow sensor 307 to detect the flow rate of the discharge port 306 in real time. Specifically: When the countdown of the H1 time ends and the control system receives that the flow rate of the discharge port 306 detected by the flow sensor 307 reaches the level of L1, the control system determines that the sediment in the centrifugal pump has been cleaned up, the cleaning is over, and the submersible pump continues to work; When the countdown of the H1 time ends and the control system receives that the flow rate of the discharge port 306 detected by the flow sensor 307 still does not reach the level of L2, the control system determines that the vibration cleaning is incomplete and performs secondary cleaning. If the flow rate still does not recover to L1 after the secondary cleaning, a cleaning method combining vibration cleaning and high-pressure water flow cleaning is used for cleaning until the flow rate recovers to L1 and the cleaning is over; The control system cleans the centrifugal pump by combining vibration cleaning and high-pressure water flow cleaning according to the detection result of the flow sensor 307. Specifically: When the secondary vibration cleaning is incomplete or the detection result of the flow sensor 307 is L3, the control system determines that the dirt in the centrifugal pump at this time is large particle block dirt. The control system controls the centrifugal pump mechanism 3 to clean by combining vibration cleaning and high-pressure water flow cleaning. During the cleaning process, the centrifugal pump works at a normal working frequency. The control system controls the circular vibrator 303 and the vibrator 305 to work and maintains the H2 time. At the same time, the control system controls the high-pressure water pump 308 to start working, the solenoid valve 310 is opened, the high-pressure water pump 308 extracts water flow from the water storage tank 313 through the water inlet pipe 311, pressurizes the extracted water flow and injects it into the centrifugal pump from the water pipe 309, and sprays out from the nozzle 312 to comprehensively wash the impeller 302, the pump body 301, the suction port 304 and the discharge port 306 of the centrifugal pump. The dirt after washing is carried by the water flow entering from the suction port 304 and discharged from the centrifugal pump through the discharge port 306; When the countdown of H2 ends and the control system receives that the flow rate of the discharge port 306 detected by the flow sensor 307 reaches the level of L1, the control system determines that the sediment in the centrifugal pump has been cleaned up and the cleaning is over; When the countdown of H2 ends and the flow rate detected by the flow sensor 307 at the discharge port 306 has not yet recovered to the level of L1, the control system determines that the cleaning is incomplete and performs secondary cleaning. If the flow rate still does not recover to L1 after the secondary cleaning, the control system controls the motor 201 to stop working and the centrifugal pump to stop working, reducing the damage to the centrifugal pump, and alarms to notify the technicians to come for maintenance.

[0025] The present invention detects the flow rate at the discharge port 306 of the centrifugal pump through the flow sensor 307, and performs cleaning by means of vibration cleaning, high-pressure water flow cleaning, and a combination of vibration cleaning according to the flow rate, completing the cleaning work during the normal operation of the centrifugal pump, reducing the downtime, improving the work efficiency, and timely cleaning the sediment can reduce the wear of the pump and extend the service life.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient transmission centrifugal pump, comprising a housing mechanism (1), a power mechanism (2), a centrifugal pump mechanism (3) and a control system, characterized in that: The housing mechanism (1) plays a role of fixed support. The power mechanism (2) is fixedly connected to the housing mechanism (1). The centrifugal pump mechanism (3) is fixedly connected to the housing mechanism (1). The control system controls the operation and working process of the power mechanism (2) and the centrifugal pump mechanism (3).

2. The high-efficiency transmission centrifugal pump according to claim 1, wherein: The housing mechanism (1) includes a first fixed platform (101). A second fixed platform (102) and a second fixing seat (104) are fixedly connected to the first fixed platform (101). The power mechanism (2) is fixedly connected to the second fixing seat (104). A first fixing seat (103) and a high-pressure water pump (308) are fixedly connected to the second fixed platform (102). The centrifugal pump mechanism (3) is fixedly connected to the first fixing seat (103).

3. An efficient transmission centrifugal pump according to claim 2, characterized in that: The centrifugal pump mechanism (3) includes a pump body (301). The pump body (301) is fixedly connected to the first fixing seat (103). A rotating shaft (203) is movably connected inside the pump body (301). The rotating shaft (203) rotates inside the centrifugal pump. An impeller (302) is fixedly connected to the rotating shaft (203). A circular vibrator (303) is fixedly connected to the impeller (302). A suction port (304) is fixedly connected to the pump body (301). A vibrator (305) is fixedly connected to the suction port (304). A discharge port (306) is fixedly connected to the pump body (301). A flow sensor (307) and a vibrator (305) are fixedly connected to the discharge port (306). A spray head (312) is fixedly connected to the pump body (301). A water pipe (309) is fixedly connected to one side of the spray head (312). The water pipe (309) is fixedly connected to the high-pressure water pump (308). An inlet water pipe (311) is fixedly connected to the high-pressure water pump (308). A water storage tank (313) is fixedly connected to one side of the inlet water pipe (311). An electromagnetic valve (310) is fixedly connected to the water pipe (309).

4. An efficient transmission centrifugal pump according to claim 3, characterized in that: The power mechanism (2) includes a motor (201). The motor (201) is fixedly connected to the second fixing seat (104). A rotating shaft (203) is fixedly connected to the motor (201). A bearing box (202) is fixedly connected to the rotating shaft (203). A sealing ring (204) is fixedly connected to one side of the rotating shaft (203).

5. The high-efficiency transmission centrifugal pump according to claim 4, wherein: The power mechanism (2) and the centrifugal pump mechanism (3) are connected to the control system, and both the power mechanism (2) and the centrifugal pump mechanism (3) are modularly designed and can be freely installed and selected.

6. The high-efficiency transmission centrifugal pump according to claim 5, characterized in that: The following steps are included: The detection range of the flow sensor (307) is L1, L2, and L3, where L1 represents the flow rate during normal operation, L2 represents the detected flow rate being lower than 70% of the normal flow rate; L3 represents the detected sudden drop in flow rate (the drop in flow rate within a short time is greater than 5% of the normal flow rate); The vibration time range of the circular vibrator (303) and the vibrator (305) is H1, H2, where H1 represents only vibration cleaning, and the vibration time is an 8-minute countdown; H2 represents a cleaning method combining vibration cleaning and high-pressure water flow cleaning, and the cleaning time is a 3-minute countdown; Install and fix the centrifugal pump, turn on the power supply for debugging to ensure the normal operation of the equipment. After the debugging is completed, fill the pump with liquid until the liquid overflows from the vent hole at the top of the pump casing to expel the air in the pump, and then start the motor (201) to start normal operation. At the same time, the control system controls the flow sensor (307) to detect the flow rate at the discharge port (306) in real time. At this time, the detected flow rate at the discharge port (306) is L1; The control system performs vibration cleaning on the centrifugal pump according to the detection result of the flow sensor (307); The control system performs cleaning on the centrifugal pump by combining vibration cleaning and high-pressure water flow cleaning according to the detection result of the flow sensor (307).

7. An efficient transmission centrifugal pump according to claim 6, characterized in that: The control system performs vibration cleaning on the centrifugal pump according to the detection result of the flow sensor (307). Specifically: When the control system receives that the flow rate detected by the flow sensor (307) is L2 and the flow rate decreasing speed is uniform, the control system determines that the factor affecting the flow rate in the centrifugal pump is the accumulation of small particle sediment. The control system controls the circular vibrator (303) and the vibrator (305) to start working, so that the pump body (301), the impeller (302), the suction port (304) and the discharge port (306) perform high-frequency and low-amplitude vibrations. When the circular vibrator (303) and the vibrator (305) are working, the centrifugal pump works at a normal working frequency. The water flow enters from the suction port (304), and the small particle sediment oscillated at the suction port (304), the impeller (302), the suction port (304) and the discharge port (306) is carried out of the centrifugal pump. The circular vibrator (303) and the vibrator (305) maintain the working time of H1. At the same time, the control system controls the flow sensor (307) to detect the flow rate at the discharge port (306) in real time. Specifically: When the countdown of the H1 time ends and the control system receives that the flow rate detected by the flow sensor (307) at the discharge port (306) reaches the level of L1, the control system determines that the sediment in the centrifugal pump has been cleaned up, and the cleaning is completed. The submersible pump continues to work; When the countdown of the H1 time ends and the control system receives that the flow rate detected by the flow sensor (307) at the discharge port (306) still does not reach the level of L2, the control system determines that the vibration cleaning is incomplete and performs secondary cleaning. If the flow rate still does not recover to L1 after the secondary cleaning, the cleaning method of combining vibration cleaning and high-pressure water flow cleaning is adopted for cleaning until the flow rate recovers to L1 and the cleaning is completed.

8. An efficient transmission centrifugal pump according to claim 7, characterized in that: The control system performs cleaning on the centrifugal pump by combining vibration cleaning and high-pressure water flow cleaning according to the detection result of the flow sensor (307). Specifically: When the secondary vibration cleaning is incomplete or the detection result of the flow sensor (307) is L3, the control system determines that the dirt in the centrifugal pump at this time is large-particle block dirt. The control system controls the centrifugal pump mechanism (3) to clean in a combined manner of vibration cleaning and high-pressure water flow cleaning. During the cleaning process, the centrifugal pump operates at a normal working frequency. The control system controls the circular vibrator (303) and the vibrator (305) to operate and maintain for a time of H2. At the same time, the control system controls the high-pressure water pump (308) to start working, and the solenoid valve (310) is opened. The high-pressure water pump (308) takes out water from the water storage tank (313) through the water inlet pipe (311), pressurizes the taken-out water and injects it into the centrifugal pump from the water pipe (309), and sprays out from the nozzle (312) to comprehensively wash the impeller (302), pump body (301), suction port (304), and discharge port (306) of the centrifugal pump. The dirt after washing is carried by the water flow entering at the suction port (304) and discharged from the centrifugal pump through the discharge port (306); When the countdown of H2 ends and the control system receives that the flow rate of the discharge port (306) detected by the flow sensor (307) reaches the level of L1, the control system determines that the sediment in the centrifugal pump has been cleaned up and the cleaning ends; When the countdown of H2 ends and the flow rate of the discharge port (306) detected by the flow sensor (307) received by the control system still has not recovered to the level of L1, the control system determines that the cleaning is incomplete and performs secondary cleaning. If the flow rate still has not recovered to L1 after the secondary cleaning, the control system controls the motor (201) to stop working, the centrifugal pump stops working, reduces the damage to the centrifugal pump, and alarms to notify the technical personnel to come for maintenance.

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