Intelligent control and antifreeze facilities for an integrated pump station

Abstract

This invention relates to the technical field of anti-freezing facilities for pumping stations, and in particular to an integrated intelligent control anti-freezing facility for pumping stations, including a main motor, a main pump, and pumping station pipelines; it also includes: a control box for controlling the operating status of the main motor; an impeller rotatably mounted at the tail end of the main motor for blowing hot air onto the main motor; an air guide sleeve fitted over the heat dissipation fins of the main motor, with the heat dissipation fins and the inner wall of the air guide sleeve forming a hot air channel; and a first insulation sleeve fitted over the outer wall of the main pump and a second insulation sleeve fitted over the outer wall of the pumping station pipelines, with a through heating gap between the first insulation sleeve and the main pump and between the second insulation sleeve and the outer wall of the pumping station pipelines, the heating gap connecting to the hot air channel; it utilizes the self-heating of the main motor and low-power stirring to prevent freezing of the main pump and pipelines, with low structural complexity and high reliability of anti-freezing.

Description

Technical Field

[0001] This invention relates to the technical field of antifreeze facilities for pumping stations, and in particular to an intelligent control antifreeze facility for an integrated pumping station. Background Technology

[0002] Integrated pumping stations are a widely used type of pumping station. Since most integrated pumping stations are not continuously operating, when the main pump stops working in low-temperature environments, the water in the main pump and pipeline system is prone to freezing. Once frozen, it can lead to pumping station failure or even rupture of the main pump and pipeline due to ice expansion. Therefore, existing technologies disclose various integrated pumping station anti-freezing systems. For example, the Chinese invention patent application with publication number CN115704225A proposes an integrated pumping station anti-freezing system based on photovoltaic water circulation. This system includes a heat compensation circulation loop, a photovoltaic heat source circulation loop, a photovoltaic heating circuit, and a control subsystem. The heat compensation circulation loop includes sequentially connected... The integrated pump station cylinder is connected to a spiral pipe, a secondary circulating water pump, a secondary side heat exchanger, and secondary side valves; the photovoltaic heat source circulation loop includes a primary side heat exchanger, a primary side circulating water pump, a water tank, a primary side valve, and a photovoltaic hot water module connected in sequence; the heating circuit includes an electric heater, a first thermal switch, a power supply cabinet, and a photovoltaic hot water module connected in series, with the power supply cabinet containing an interconnected battery and inverter, and the electric heater and the first thermal switch installed in the water tank; the control subsystem includes an integrated controller, which is electrically connected to the aforementioned electrical components and a second thermal switch, the second thermal switch being installed in the cylinder, and the integrated controller controlling the system operation.

[0003] However, the aforementioned pump station antifreeze system uses an independent heating mechanism to heat and prevent freezing of the main pump and pipelines of the pump station. This requires the addition of a large number of external devices on the basis of the integrated pump station, resulting in a complex structure of the antifreeze system. Moreover, its reliance on photovoltaic heat sources makes it highly dependent on the weather, leading to poor reliability of the antifreeze system. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an integrated intelligent control antifreeze facility for pump stations that utilizes the self-heating of the main motor of the pump station and low-power stirring to prevent freezing of the main pump and pipelines of the pump station. This facility has low structural complexity and high reliability in preventing freezing.

[0005] This invention discloses an intelligent control and anti-freezing facility for an integrated pumping station, comprising a main motor, a main pump, and pumping station piping. The main pump is installed at the end of the main motor, and the main motor is drivenly connected to the main pump. The pumping station piping is installed at the inlet and outlet of the main pump. It also includes: a control box for controlling the operating status of the main motor, including low-power operation, low-power stall, and normal operation; an impeller rotatably mounted at the tail end of the main motor, used to blow hot air onto the main motor; an air guide sleeve fitted over the outer side of the heat dissipation fins of the main motor, the heat dissipation fins and the inner wall of the air guide sleeve forming a hot air channel; and a first insulation sleeve fitted over the outer wall of the main pump, and a second insulation sleeve fitted over the outer wall of the pumping station piping, the first insulation sleeve and the main pump... A through-type heating gap is set between the insulation jacket and the outer wall of the pump station pipeline, and the heating gap connects with the hot air channel; the intelligent control unit in the control box prioritizes the operation of the main motor to control its normal operation or stop based on the pump station's working instructions. It predicts the icing situation of the pump station based on weather information, the actual temperature of the pump station, the temperature of the incoming and outgoing water in the pump station pipeline, and icing conditions, and intelligently controls the main motor to switch between low-power operation and low-power stall state; when the control box receives an instruction requiring the pump station to normally transport water or other fluids, the control box controls the main motor to operate normally, the main motor drives the main pump to operate normally, and records the temperature data of the main motor during operation, allowing water or other fluids to be transported out of the pump station through the pump station pipeline. At this time, the water and other fluids... Continuous flow prevents ice formation and thus eliminates the need for antifreeze operations. When the pumping station has no transport tasks and requires mild antifreeze, the control box controls the main motor to operate at low power. In this mode, the main motor only drives the impeller of the main pump at low speed to agitate the water or other fluids in the main pump and pumping station pipelines, maintaining localized flow and disrupting ice nucleation to achieve mild antifreeze. When the pumping station has no transport tasks and requires regular antifreeze, the control box controls the main motor to operate at low power in a stall state. In this mode, the main motor is only energized but the rotor does not rotate, converting electrical energy into heat energy. This heats the main motor, ensuring its temperature does not exceed its normal operating maximum temperature, driving the impeller to rotate. The airflow from the turbine to the main motor creates hot air as it flows along the hot air channel between the motor's heat dissipation fins and the air guide sleeve. This hot air enters the heating gaps between the first insulation sleeve and the main pump, and between the second insulation sleeve and the outer wall of the pump station pipeline, thus heating and preventing the main pump and pipeline from freezing. To improve the antifreeze effect, the first insulation sleeve is preferably made of heat-insulating material. To maintain the heat dissipation effect of the main motor, the air guide sleeve can be removed when there is no need for antifreeze. Compared with existing technologies, this method utilizes the self-heating of the main motor and low-power stirring to prevent the main pump and pipeline from freezing, eliminating the need to add a large number of external devices to the integrated pump station, reducing the structural complexity of the antifreeze system, making it independent of weather conditions, and improving the reliability of antifreeze.

[0006] Preferably, the system also includes a movable sleeve that slides onto the air guide sleeve. The movable sleeve is located between the air guide sleeve and the insulation sleeve, and a ventilation gap is provided between the air guide sleeve and the insulation sleeve. One end of multiple screws is rotatably connected to the outer wall of the air guide sleeve, and the other end of the multiple screws is rotatably screwed to multiple threaded hole plates, which are installed on the movable sleeve. In summer or when there is no need for antifreeze, rotating the multiple screws causes them to push the multiple movable sleeves to retract towards the air guide sleeve through the threaded action with the multiple threaded hole plates, thereby opening the ventilation gap between the air guide sleeve and the insulation sleeve. At this time, the hot air from the main motor is discharged through the ventilation gap, maintaining the heat dissipation effect of the main motor. In winter or when there is a need for antifreeze, rotating the multiple screws causes them to push the multiple movable sleeves to extend towards the insulation sleeve through the threaded action with the multiple threaded hole plates, thereby closing the ventilation channel between the air guide sleeve and the insulation sleeve. At this time, the hot air channel inside the air guide sleeve is connected to the heating gap inside the insulation sleeve, allowing the hot air to heat and prevent freezing of the main pump and pump station pipelines, facilitating switching.

[0007] Preferably, it also includes a double-headed pusher cylinder installed at the tail end of the main motor. Each of the two output ends of the double-headed pusher cylinder is equipped with a clamping plate, which is located on both sides of the tail end of the main motor shaft. When the pump station is working normally, the output ends of the double-headed pusher cylinder push the two clamping plates to open, allowing the main motor shaft to rotate freely. When the main motor needs to be stalled, the output ends of the double-headed pusher cylinder drive the two clamping plates to approach and clamp the tail end of the main motor shaft, thereby preventing the main motor shaft from rotating and achieving stalling of the main motor.

[0008] Preferably, it further includes: an annular seat block, an annular seat block is provided in the middle of the impeller, an annular seat block has a concentric hole in the middle of the annular seat block, a first sliding groove arranged axially is provided on the side wall of the concentric hole, a bearing component is concentrically mounted at the end of the annular seat block, the bearing component is installed inside the cover on the tail end of the main motor, the auxiliary motor is installed on the cover on the tail end of the main motor, the output shaft of the auxiliary motor is mounted with a drive shaft, the drive shaft and the annular seat block are connected by a disengaged transmission component; a transmission key, one end of the transmission key is slidably installed in the sliding groove of the annular seat block, the other end of the transmission key is slidably installed in the second sliding groove on the tail end of the main motor shaft, the transmission key slides radially along the first sliding groove and the second sliding groove, the two ends of a spring are respectively connected to the transmission key and the tail end of the main motor shaft, and the spring elastically supports the transmission key; preferably, in order to improve the stability of the drive, two or more transmission keys can be provided, and the adaptability of the first sliding groove and the second sliding groove is increased accordingly; when the clamping plate does not clamp the tail end of the main motor shaft, that is, when the main motor... In normal operation, the spring elastically supports the transmission key, causing its outer edge to extend out of the second groove at the tail end of the main motor shaft and slide into the first groove of the annular seat block. This allows the tail end of the main motor shaft to be connected to the annular seat block via the transmission key. The transmission connection between the drive shaft and the annular seat block is then disconnected via a transmission component. When the main motor is running normally, its tail end drives the transmission key to rotate, which in turn drives the annular seat block, which in turn drives the impeller to rotate, thus enabling the impeller to blow air onto the main motor. When the clamping plate holds the tail end of the main motor shaft, causing the main motor to stall, the clamping plate simultaneously compresses the transmission key into the second groove. At this point, the transmission key disengages from the second groove of the annular seat block, and the drive shaft is then connected to the annular seat block via a transmission component. The intelligent control unit in the control box controls the operation of the auxiliary motor, which drives the annular seat block to rotate via the drive shaft. The annular seat block then drives the impeller to rotate, enabling the impeller to blow air onto the main motor to prevent freezing. This allows for convenient and flexible switching between operating states.

[0009] Preferably, the transmission component includes: a push ring, on the outer side wall of which a spline is provided; a sliding key is slidably connected to a groove in the annular seat block; a guide slope is rotatably provided at the end of the push ring facing the transmission key; a wedge surface matching the guide slope is provided at the end of the transmission key facing the push ring, the wedge surface slidingly contacting the guide slope; a passive friction ring is provided at the end of the push ring facing the drive shaft; an active friction head is mounted on the end of the drive shaft; a friction surface matching and aligned with the passive friction ring is provided at the end of the active friction head facing the push ring; and an elastic component is provided inside the concentric hole of the annular seat block, the elastic component pushing the push ring towards the transmission key. This design ensures that the guide slope of the push ring maintains sliding contact with the wedge surface of the transmission key. When the transmission key is pushed by the clamping plate into the groove two at the tail end of the main motor shaft and disengaged from the groove one of the annular seat block, the wedge surface of the transmission key presses against the guide slope of the push ring, thereby pushing the push ring towards the drive shaft. This causes the passive friction ring to connect with the active friction head through friction. At this time, the drive shaft is connected to the passive friction ring and the push ring through friction transmission via the active friction head. When the auxiliary motor drives the drive shaft to rotate, it can drive the push ring, the annular seat block, and the impeller to rotate, thus achieving automatic switching between transmission connection and disconnection. This eliminates the need for a dedicated drive structure, simplifies the structure, and improves practicality.

[0010] Preferably, it also includes a circulating pump. The input shaft of the circulating pump is connected to the tail end of the output shaft of the auxiliary motor. One end of pipe one is connected to the output port of the circulating pump, and the other end of pipe one is connected to the input end of the pump station pipeline. One end of pipe two is connected to the input port of the circulating pump, and the other end of pipe two is connected to the high-level water tank, which is located above the main motor. One end of pipe three is connected to the high-level water tank, and the other end of pipe three is connected to the output end of the pump station pipeline. The auxiliary motor drives the circulating pump to run. The circulating pump drives water or other fluids to flow through pipe one to the input end of the pump station pipeline, and then the water or other fluids flow to the output end of the pump station pipeline and are input into the high-level water tank through pipe three. Then, they flow back to the circulating pump through pipe two to form a circulation, thereby achieving an antifreeze effect. The heat generated by the main motor during stall further enhances the antifreeze effect.

[0011] Preferably, it also includes a low-level tank, located below the high-level tank. One end of pipe four is connected to the low-level tank, and the other end of pipe four is connected to pipe two. A valve one is installed on pipe four, and a valve two is installed on pipe two, located above valve one. Both the high-level and low-level tanks are equipped with level sensors, which are communicatively connected to the intelligent control unit of the control box. Under lower antifreeze conditions, the intelligent control unit of the control box controls valve two of pipe two to close and valve one of pipe four to open. At this time, the circulating pump operates to return the water or other fluid stored in the low-level tank to the high-level tank through pipe one, the pump station pipeline, and pipe three. When the liquid level in the high-level tank reaches... At the designated high level, the auxiliary motor disconnects from the circulating pump. Water or other fluid in the high-level tank flows back to the pump station pipeline through pipe three, and then back to the low-level tank through pipe one, the circulating pump, and pipe four. When the water or other fluid in the low-level tank reaches the designated high level, the auxiliary motor and the circulating pump reconnect, allowing the water or other fluid to flow back again. This causes the water or other fluid to circulate back and forth between the low-level and high-level tanks, reducing the power of the auxiliary motor, adapting to lower antifreeze levels, and reducing energy consumption. Under normal antifreeze levels, valve one of pipe four is closed, valve two of pipe two is open, and the auxiliary motor drives the circulating pump to run continuously, allowing the water or other fluid to circulate.

[0012] Preferably, it also includes a ring-shaped heat pipe, which is fitted onto the housing of the main motor. One end of heat pipe one is connected to the ring-shaped heat pipe, and the other end of heat pipe one extends into the high-level water tank. One end of heat pipe two is connected to the ring-shaped heat pipe, and the other end of heat pipe two extends into the low-level tank. The ring-shaped heat pipe absorbs heat from the main motor, and the heat is input to the high-level water tank and the low-level tank respectively through heat pipe one and heat pipe two. Thus, heat pipe one and heat pipe two, together with heaters independently set in the high-level water tank and the low-level tank, heat the water or other fluids in the high-level water tank and the low-level tank respectively, thereby improving the circulating heating and antifreeze effect.

[0013] Preferably, it also includes a geothermal pipe 1, the heat-absorbing ends of both geothermal pipe 1 and geothermal pipe 2 are buried in the soil, and the heat-releasing ends of geothermal pipe 1 and geothermal pipe 2 extend into the high-level water tank and the low-level tank, respectively; in winter when the pump station needs to be protected from freezing, the soil temperature is slightly higher than the air temperature, which allows geothermal pipe 1 and geothermal pipe 2 to absorb heat from the soil and release it into the high-level water tank and the low-level tank, thereby reducing the freezing of water or other fluids in the high-level water tank and the low-level tank, and further improving the anti-freezing and energy-saving effects.

[0014] Preferably, the system also includes multiple temperature sensors, which are respectively installed on the main pump, pump station pipeline, high-level water tank, low-level tank, and main motor. A miniature weather station is installed on the control box. All multiple temperature sensors are communicatively connected to the intelligent control unit of the control box. The multiple temperature sensors detect the temperature of various parts of the pump station and antifreeze system. The miniature weather station detects weather data such as temperature, humidity, and air pressure in the pump station environment. Based on the above weather data and combined with weather information and weather forecast information of the pump station area obtained from the network, the intelligent control unit of the control box determines the antifreeze level of the pump station and automatically adjusts the operating status of the main motor, the operating status of the auxiliary motor, and the opening status of various valves based on the determined antifreeze level, providing hardware support for realizing intelligent antifreeze.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the main pump and pipeline of the pump station are protected from freezing by the self-heating of the main motor of the pump station and the low-power stirring, without the need to add a large number of external devices on the basis of the integrated pump station, which reduces the structural complexity of the antifreeze system, is not dependent on weather conditions, and improves the reliability of antifreeze. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the front structure of the present invention; Figure 3 This is a schematic diagram of the isometric structure of the present invention; Figure 4 It is a structural diagram of the auxiliary motor, circulating pump, pipe one, pipe two, high-level water tank, pipe three, low-level tank, pipe four, geothermal pipe one, geothermal pipe two, and temperature sensor, etc. Figure 5 It is a structural diagram of the main pump, air guide sleeve, insulation sleeve one, insulation sleeve two, movable sleeve, screw and threaded orifice plate, etc. Figure 6 It is a structural diagram of the main motor, main pump, pump station pipeline, ring-mounted heat pipe, heat pipe one and heat pipe two, etc. Figure 7 yes Figure 2 A magnified schematic diagram of the partial structure at point A in the middle; Figure 8 It is a structural diagram of the main motor, impeller, double-headed push cylinder, clamping plate, bearing components, annular seat block, auxiliary motor, drive shaft, transmission key, spring, push ring and passive friction ring, etc. Figure 9 It is a structural diagram of the impeller, double-headed push cylinder, clamping plate, bearing components, annular seat block, auxiliary motor, drive shaft, transmission key, spring, push ring and active friction head.

[0017] The attached diagram is labeled as follows: 1. Main motor; 2. Main pump; 3. Pump station pipeline; 4. Control box; 5. Fan impeller; 6. Air guide sleeve; 7. Insulation sleeve one; 8. Insulation sleeve two; 9. Movable sleeve; 10. Screw; 11. Threaded orifice plate; 12. Double-headed push cylinder; 13. Clamping plate; 14. Bearing assembly; 15. Annular seat block; 16. Auxiliary motor; 17. Drive shaft; 18. Transmission key; 19. Spring; 20. Push ring; 21. Passive friction ring; 22. Active friction head; 23. Circulating pump; 24. Pipe one; 25. Pipe two; 26. High-level water tank; 27. Pipe three; 28. Low-level tank; 29. ​​Pipe four; 30. Ring-mounted heat pipe; 31. Heat pipe one; 32. Heat pipe two; 33. Geothermal pipe one; 34. Geothermal pipe two; 35. Temperature sensor; 36. Miniature weather station. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0019] Example 1, such as Figures 1 to 6 As shown, an intelligent control anti-freezing facility for an integrated pumping station includes a main motor 1, a main pump 2, and pumping station pipeline 3. The main pump 2 is installed at the end of the main motor 1, and the main motor 1 is drivenly connected to the main pump 2. The pumping station pipeline 3 is installed at the inlet and outlet of the main pump 2. It also includes: a control box 4, which controls the operating status of the main motor 1, including low-power operation, low-power stall, and normal operation; an impeller 5, which is rotatably mounted at the tail end of the main motor 1 and blows hot air onto the main motor 1; an air guide sleeve 6, which is fitted onto the outside of the heat dissipation fins of the main motor 1, with the heat dissipation fins and the inner wall of the air guide sleeve 6 forming a hot air channel; a first insulation sleeve 7, which is fitted onto the outer wall of the main pump 2; and a second insulation sleeve 8, which is fitted onto the pumping station pipeline 3. On the outer wall, a through heating gap is provided between the insulation sleeve 1 7 and the outer wall of the main pump 2 and the insulation sleeve 2 8 and the outer wall of the pump station pipeline 3, and the heating gap is connected to the hot air channel; it also includes a movable sleeve 9 that is slidably fitted on the air guide sleeve 6, the movable sleeve 9 is located between the air guide sleeve 6 and the insulation sleeve 1 7, and a ventilation gap is provided between the air guide sleeve 6 and the insulation sleeve 1 7, one end of multiple screws 10 is rotatably connected to the outer wall of the air guide sleeve 6, and the other end of multiple screws 10 is rotatably screwed to multiple threaded hole plates 11, and multiple threaded hole plates 11 are installed on the movable sleeve 9; it also includes multiple temperature sensors 35, which are respectively installed on the main pump 2, the pump station pipeline 3, the high-level water tank 26, the low-level tank 28 and the main motor 1, and a miniature weather station 36 is installed on the control box 4.

[0020] Multiple temperature sensors 35 are connected to the intelligent control unit of the control box 4. The temperature of various parts of the pump station and antifreeze system is detected by the multiple temperature sensors 35. The micro weather station 36 detects weather data such as temperature, humidity and air pressure in the environment of the pump station. Based on the above weather data and combined with the weather information and weather forecast information of the pump station area obtained by the network, the intelligent control unit of the control box 4 determines the antifreeze level of the pump station. Based on the determined antifreeze level, it automatically adjusts the operating status of the main motor 1, the operating status of the auxiliary motor 16, and the opening status of various valves, etc., to provide hardware support for realizing intelligent antifreeze.

[0021] Specifically, in summer or when there is no need for antifreeze, rotating multiple screws 10 causes them to push multiple movable sleeves 9 upwards towards the air guide sleeve 6 through the threaded action between the screws 10 and the threaded plates 11. This opens the ventilation gap between the air guide sleeve 6 and the insulation sleeve 7, allowing hot air from the main motor 1 to escape through the ventilation gap and maintain the heat dissipation effect of the main motor 1. In winter or when there is a need for antifreeze, rotating multiple screws 10 causes them to push multiple movable sleeves 9 upwards towards the insulation sleeve 7 through the threaded action between the screws 10 and the threaded plates 11. This closes the ventilation channel between the air guide sleeve 6 and the insulation sleeve 7, preventing the air from entering the air guide sleeve 6. The hot air duct of the unit is connected to the heating gap inside the insulation jacket 7; the intelligent control unit in the control box 4 prioritizes the operation of the main motor 1 based on the working instructions of the pump station, and predicts the icing situation of the pump station based on weather information, the actual temperature of the pump station, the temperature of the incoming and outgoing water in the pump station pipeline 3, and the icing situation, and intelligently controls the main motor 1 to switch between low-power operation and low-power stall state; when the control box 4 receives an instruction that the pump station needs to deliver water or other fluids normally, the control box 4 controls the main motor 1 to operate normally, the main motor 1 drives the main pump 2 to operate normally, and records the temperature data of the main motor 1 during operation, so that water or other fluids can pass through the pump. Pipeline 3 delivers water and other fluids to the outside of the pumping station. During this time, water and other fluids continue to flow, and since ice nuclei cannot form, they will not freeze, requiring no antifreeze operation. When the pumping station has no delivery task and requires mild antifreeze, control box 4 controls the main motor 1 to operate at low power. In this case, the main motor 1 only drives the impeller of the main pump 2 at low speed to agitate the water or other fluids in the main pump 2 and pumping station pipeline 3, maintaining a localized flow state and preventing ice nuclei formation, thus achieving mild antifreeze. When the pumping station has no delivery task and requires regular antifreeze, control box 4 controls the main motor 1 to be locked at low power. In this case, the main motor 1 is only energized, but the rotor does not rotate. This process converts electrical energy into heat energy, causing the main motor 1 to heat up. The temperature of the main motor 1 is kept below its maximum normal operating temperature, driving the impeller 5 to rotate. The impeller 5 blows air onto the main motor 1, creating hot air as it flows along the hot air channel between the main motor 1's heat dissipation fins and the air guide sleeve 6. This hot air enters the heating gap between the insulation sleeve 7 and the main pump 2, and between the insulation sleeve 8 and the outer wall of the pump station pipeline 3, thus heating and preventing freezing of the main pump 2 and the pump station pipeline 3. To improve the antifreeze effect, the insulation sleeve 7 is preferably made of heat-insulating material. To maintain the heat dissipation effect of the main motor 1, the air guide sleeve 6 can be removed when there is no need for antifreeze.

[0022] Compared with existing technologies, the main pump and pipelines of the pump station are protected from freezing by the self-heating of the main motor 1 and low-power stirring. This eliminates the need to add a large number of external devices to the integrated pump station, reduces the structural complexity of the antifreeze system, is not dependent on weather conditions, and improves the reliability of antifreeze.

[0023] Example 2, as Figures 6 to 9 As shown, based on Embodiment 1, it also includes a double-headed push cylinder 12 installed at the tail end of the main motor 1. Clamping plates 13 are installed on both output ends of the double-headed push cylinder 12, and the clamping plates 13 are located on both sides of the tail end of the main motor 1's shaft. It also includes: an annular seat block 15, with an annular seat block 15 located in the middle of the impeller 5. A concentric hole is provided in the middle of the annular seat block 15, and a sliding groove arranged axially is provided on the side wall of the concentric hole. Bearing components 14 are concentrically installed at the ends of the annular seat block 15, and the bearing components 14 are installed inside the housing at the tail end of the main motor 1. An auxiliary motor 16 is installed on the housing at the tail end of the main motor 1. A drive shaft 17 is installed on the output shaft of the auxiliary motor 16, and the drive shaft 17 is detachably connected to the annular seat block 15 via a transmission component. A transmission key 18 is also included, with one end slidably installed in the sliding groove of the annular seat block 15, and the other end... One end of the transmission key 18 is slidably installed in the second groove at the tail end of the shaft of the main motor 1. The transmission key 18 slides radially along the first and second grooves. The two ends of the spring 19 are respectively connected to the transmission key 18 and the tail end of the shaft of the main motor 1, and the spring 19 elastically supports the transmission key 18. The transmission component includes: a push ring 20, a spline is provided on the outer wall of the push ring 20, the slide key is slidably connected to the first groove of the annular seat block 15, a guide slope is provided at the end of the push ring 20 facing the transmission key 18, a wedge surface matching the guide slope is provided at the end of the transmission key 18 facing the push ring 20, the wedge surface slides in contact with the guide slope, a passive friction ring 21 is provided at the end of the push ring 20 facing the drive shaft 17; and an active friction head 22, which is installed on the end of the drive shaft 17, and a friction surface matching and aligned with the passive friction ring 21 is installed at the end of the active friction head 22 facing the push ring 20.

[0024] When the pump station is operating normally, the output end of the double-headed push cylinder 12 pushes the two clamping plates 13 to open, allowing the shaft of the main motor 1 to rotate freely. When the main motor 1 needs to be stalled, the output end of the double-headed push cylinder 12 drives the two clamping plates 13 to approach and clamp the tail end of the shaft of the main motor 1, thereby preventing the shaft of the main motor 1 from rotating and achieving stalling of the main motor 1. Preferably, to improve the stability of the drive, two transmission keys 18 are provided, and the corresponding slide groove one and slide groove two increase the adaptability. When the clamping plates 13 do not clamp the tail end of the shaft of the main motor 1, that is, when the main motor 1 is in operation... In the normal state, spring 19 elastically supports transmission key 18, causing the outer edge of transmission key 18 to extend out of the second groove at the tail end of the main motor 1's shaft and slide into the first groove of the annular seat block 15. This allows the tail end of the main motor 1's shaft to be connected to the annular seat block 15 via transmission key 18. An elastic component is installed inside the concentric hole of the annular seat block 15. This elastic component pushes push ring 20 toward transmission key 18, causing the guide slope of push ring 20 to maintain sliding contact with the wedge surface of transmission key 18. At this time, passive friction ring 21 disengages from active friction head 22, and the main motor... 1. During normal operation, the tail end of the rotating shaft drives the transmission key 18 to rotate, the transmission key 18 drives the annular seat block 15 to rotate, and the annular seat block 15 drives the impeller 5 to rotate, so that the impeller 5 blows air normally onto the main motor 1. When the clamping plate 13 clamps the tail end of the rotating shaft of the main motor 1, causing the main motor 1 to stall, the clamping plate 13 simultaneously compresses the transmission key 18 into the second slide groove. At this time, the transmission key 18 disengages from the second slide groove of the annular seat block 15, and the wedge surface of the transmission key 18 presses against the guide slope of the push ring 20, thereby pushing the push ring 20 towards the drive shaft 17, so that the passive friction ring 21 and the... The active friction head 22 is frictionally connected, and the drive shaft 17 is frictionally driven to the passive friction ring 21 and the push ring 20 through the active friction head 22. The intelligent control unit of the control box 4 controls the operation of the auxiliary motor 16. The auxiliary motor 16 drives the push ring 20, the annular seat block 15 and the impeller 5 to rotate through the drive shaft 17. The annular seat block 15 drives the impeller 5 to rotate, realizing the antifreeze blowing of the impeller 5 to the main motor 1. It facilitates flexible switching of working states and realizes automatic switching between transmission connection and disconnection. No special drive structure is required, simplifying the structure and improving practicality.

[0025] Example 3, as Figures 1 to 7As shown, based on Embodiment 1, it also includes a circulating pump 23. The input shaft of the circulating pump 23 is connected to the tail end of the output shaft of the auxiliary motor 16. One end of pipe 24 is connected to the output port of the circulating pump 23, and the other end of pipe 24 is connected to the input end of the pump station pipeline 3. One end of pipe 25 is connected to the input port of the circulating pump 23, and the other end of pipe 25 is connected to the high-level water tank 26, which is located above the main motor 1. One end of pipe 27 is connected to the high-level water tank 26, and the other end of pipe 27 is connected to the output end of the pump station pipeline 3. It also includes a low-level tank 28, which is located below the high-level water tank 26. One end of pipe 29 is connected to the low-level tank 28. The other end of pipe 4 29 is connected to pipe 2 25. A valve 1 is installed on pipe 4 29, and a valve 2 is installed on pipe 2 25. The valve 2 is located above the valve 1. It also includes a ring-shaped heat pipe 30, which is fitted onto the housing of the main motor 1. One end of heat pipe 1 31 is connected to the ring-shaped heat pipe 30, and the other end of heat pipe 1 31 extends into the high-level water tank 26. One end of heat pipe 2 32 is connected to the ring-shaped heat pipe 30, and the other end of heat pipe 2 32 extends into the low-level tank 28. It also includes a geothermal pipe 1 33. The heat-absorbing ends of geothermal pipe 1 33 and geothermal pipe 2 34 are buried in the soil, and the heat-releasing ends of geothermal pipe 1 33 and geothermal pipe 2 34 extend into the high-level water tank 26 and the low-level tank 28, respectively.

[0026] The ring-shaped heat pipe 30 absorbs heat from the main motor 1. This heat is then transferred to the high-level water tank 26 and the low-level tank 28 via heat pipe 31 and heat pipe 32, respectively. This allows heat pipes 31 and 32, in conjunction with independently installed heaters in the high-level water tank 26 and the low-level tank 28, to heat the water or other fluids in the two tanks, improving the circulating heating and antifreeze effect. In winter, when the pump station requires antifreeze protection, the soil temperature is slightly higher than the air temperature. This allows geothermal pipes 33 and 34 to absorb heat from the soil and release it into the high-level water tank 26 and the low-level tank 28, thus mitigating the freezing of water or other fluids in the tanks and further improving the antifreeze and energy-saving effects.

[0027] Both the high-level water tank 26 and the low-level water tank 28 are equipped with level sensors, which are communicatively connected to the intelligent control unit of the control box 4. Under lower antifreeze conditions, the intelligent control unit of the control box 4 closes valve two of pipe two 25 and opens valve one of pipe four 29. At this time, the circulating pump 23 operates, pumping water or other fluids stored in the low-level water tank 28 back to the high-level water tank 26 through pipe one 24, pump station pipeline 3, and pipe three 27. When the water level in the high-level water tank 26 reaches the designated high level, the auxiliary motor 16 disconnects from the circulating pump 23. The water or other fluids in the high-level water tank 26 flow back to the pump station pipeline 3 through pipe three 27 and then back to the low-level water tank 28 through pipe one 24, circulating pump 23, and pipe four 29. When the water or other fluids in the low-level water tank 28 reach the designated high level, the auxiliary motor... 16 reconnects with the circulating pump 23, allowing water or other fluids to flow back and forth between the low-level tank 28 and the high-level tank 26. This reduces the power of the auxiliary motor 16, adapts to lower antifreeze levels, and lowers energy consumption. Under normal antifreeze levels, valve 1 of pipe 4 29 is closed, and valve 2 of pipe 25 is open. The auxiliary motor 16 drives the circulating pump 23 to run continuously. The circulating pump 23 drives water or other fluids to flow through pipe 1 24 to the input end of the pump station pipeline 3, and then the water or other fluids flow along the pipeline to the output end of the pump station pipeline 3 and are input into the high-level tank 26 through pipe 3 27. Then, they flow back to the circulating pump 23 through pipe 2 25 to form a cycle, allowing the water or other fluids to circulate and achieve the antifreeze effect. Combined with the heat generated by the main motor 1 during stall, the antifreeze effect is improved.

[0028] like Figures 1 to 9As shown, the present invention discloses an intelligent control anti-freezing facility for an integrated pumping station. During operation, when the control box 4 receives an instruction requiring the pumping station to normally transport water or other fluids, the control box 4 controls the main motor 1 to operate normally. The main motor 1 drives the main pump 2 to operate normally and records the temperature data during the operation of the main motor 1, allowing water or other fluids to be transported out of the pumping station through the pumping station pipeline 3. At this time, the water and other fluids continue to flow and will not freeze because ice nuclei cannot form, thus requiring no anti-freezing operation. Then, when the pumping station requires anti-freezing, multiple screws 10 are rotated. These screws 10, through the threaded action with multiple threaded plates 11, push multiple movable sleeves 9 to extend into the insulation sleeve 7, closing the ventilation channel between the air guide sleeve 6 and the insulation sleeve 7. At this time, the hot air channel inside the air guide sleeve 6 and the heating gap inside the insulation sleeve 7 are connected. Then, when the pumping station has no transport task and requires mild anti-freezing, the control box 4 controls the main motor 1 to operate at low power. At this time, the main motor 1 only drives the impeller of the main pump 2 to operate at low speed. The main pump 2 and the water or other fluids in the pumping station pipeline 3 are agitated to maintain a localized flow state, thus breaking up ice nuclei and achieving mild antifreeze. Finally, when the pumping station has no transport task and requires routine antifreeze, the control box 4 controls the main motor 1 to operate at low power. The output end of the double-headed push cylinder 12 drives the two clamping plates 13 to approach the tail end of the shaft of the main motor 1, thereby preventing the shaft of the main motor 1 from rotating and achieving stalling of the main motor 1. At this time, the main motor 1 is only powered and rotates. The main motor 1 does not rotate, so electrical energy is converted into heat energy, causing the main motor 1 to heat up. The temperature of the main motor 1 is kept below its maximum normal operating temperature. The auxiliary motor 16 drives the impeller 5 to rotate. The impeller 5 blows air onto the main motor 1. When the air flows along the hot air channel between the heat dissipation fins and the air guide sleeve 6 of the main motor 1, hot air is formed. The hot air enters the heating gap between the insulation sleeve 1 7 and the main pump 2 and the insulation sleeve 2 8 and the outer wall of the pump station pipeline 3, thereby heating and preventing the main pump 2 and the pump station pipeline 3 from freezing.

[0029] The main functions achieved by this invention are: 1. The main pump and pipeline of the pump station are protected from freezing by the self-heating of the main motor 1 and low-power stirring. There is no need to add a lot of external equipment on the basis of the integrated pump station, which reduces the structural complexity of the antifreeze system, is not dependent on weather conditions, and improves the reliability of antifreeze. 2. A mechanical linkage structure is set between the auxiliary motor 16 and the main motor 1 to automatically switch the drive mode of the impeller 5; 3. Local circulation is used for antifreeze, which, combined with the heat generated by the stalled main motor 1, improves the antifreeze effect; 4. It has multiple antifreeze working modes, adapts to different antifreeze levels, and has good versatility; 5. Energy-saving effect is achieved by utilizing the heat generated by the main motor and geothermal energy.

[0030] This invention discloses an intelligent control anti-freezing facility for an integrated pumping station. Its installation, connection, and setup methods are all common mechanical methods; any method that achieves the desired beneficial effects can be implemented. The intelligent control anti-freezing facility for an integrated pumping station of this invention includes: a main motor 1, a main pump 2, pumping station piping 3, a control box 4, an impeller 5, insulation sleeve one 7, insulation sleeve two 8, a screw 10, a threaded perforated plate 11, a double-headed push cylinder 12, a clamping plate 13, bearing components 14, an auxiliary motor 16, and a drive shaft 17. Spring 19, passive friction ring 21, active friction head 22, circulating pump 23, pipe one 24, pipe two 25, high-level water tank 26, pipe three 27, low-level tank 28, pipe four 29, ring-mounted heat pipe 30, heat pipe one 31, heat pipe two 32, geothermal pipe one 33, geothermal pipe two 34, temperature sensor 35, and miniature weather station 36 are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manuals, without requiring any creative work from technical personnel in this field.

[0031] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An intelligent control antifreeze facility for an integrated pumping station, comprising a main motor (1), a main pump (2), and pumping station pipelines (3), wherein the main pump (2) is installed at the end of the main motor (1), the main motor (1) is connected to the main pump (2) via a transmission, and the pumping station pipelines (3) are installed at the inlet and outlet of the main pump (2); characterized in that, Also includes: The control box (4) is used to control the operating status of the main motor (1), including low power operation, low power stall and normal operation; The impeller (5) is rotatably mounted at the tail end of the main motor (1). The impeller (5) is used to blow hot air to the main motor (1). Air guide sleeve (6) is fitted on the outside of the heat dissipation fins of the main motor (1), and the heat dissipation fins and the inner wall of the air guide sleeve (6) form a hot air channel. Insulation sleeve one (7) is fitted on the outer wall of the main pump (2), and insulation sleeve two (8) is fitted on the outer wall of the pump station pipeline (3). A through heating gap is set between insulation sleeve one (7) and the main pump (2) and insulation sleeve two (8) and the outer wall of the pump station pipeline (3). The heating gap is connected to the hot air channel.

2. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 1, characterized in that, It also includes a movable sleeve (9) that slides on the air guide sleeve (6). The movable sleeve (9) is located between the air guide sleeve (6) and the insulation sleeve (7). A ventilation gap is provided between the air guide sleeve (6) and the insulation sleeve (7). One end of a plurality of screws (10) is rotatably connected to the outer wall of the air guide sleeve (6). The other end of the plurality of screws (10) is rotatably screwed to a plurality of threaded hole plates (11). The plurality of threaded hole plates (11) are installed on the movable sleeve (9).

3. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 1, characterized in that, It also includes a double-headed push cylinder (12) installed at the tail end of the main motor (1). The two output ends of the double-headed push cylinder (12) are each equipped with a clamping plate (13), which is located on both sides of the tail end of the shaft of the main motor (1).

4. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 3, characterized in that, Also includes: An annular seat block (15) is provided in the middle of the impeller (5). A concentric hole is provided in the middle of the annular seat block (15). A sliding groove arranged along the axial direction is provided on the side wall of the concentric hole. A bearing component (14) is concentrically installed at the end of the annular seat block (15). The bearing component (14) is installed inside the cover on the tail end of the main motor (1). The auxiliary motor (16) is installed on the cover on the tail end of the main motor (1). The output shaft of the auxiliary motor (16) is equipped with a drive shaft (17). The drive shaft (17) and the annular seat block (15) are connected by a transmission component that can be disconnected. The transmission key (18) is slidably installed in the groove of the annular seat block (15) at one end, and slidably installed in the groove two at the tail end of the main motor (1) shaft at the other end. The transmission key (18) slides radially along the groove one and the groove two. The two ends of the spring (19) are connected to the transmission key (18) and the tail end of the main motor (1) shaft respectively, and the spring (19) elastically supports the transmission key (18).

5. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 4, characterized in that, The transmission components include: A push ring (20) is provided with a spline on its outer side wall. The sliding key is slidably connected to the sliding groove of the annular seat block (15). A guide slope is provided at one end of the push ring (20) facing the transmission key (18). A wedge surface matching the guide slope is provided at one end of the transmission key (18) facing the push ring (20). The wedge surface slides in contact with the guide slope. A passive friction ring (21) is provided at one end of the push ring (20) facing the drive shaft (17). Active friction head (22) is mounted on the end of drive shaft (17). The end of active friction head (22) facing push ring (20) is equipped with a friction surface that matches and aligns with passive friction ring (21).

6. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 4, characterized in that, It also includes a circulating pump (23), the input shaft of the circulating pump (23) is connected to the output shaft of the auxiliary motor (16) via a transmission connection, one end of pipe one (24) is connected to the output port of the circulating pump (23), the other end of pipe one (24) is connected to the input end of the pump station pipeline (3), one end of pipe two (25) is connected to the input port of the circulating pump (23), the other end of pipe two (25) is connected to the high-level water tank (26), the high-level water tank (26) is located above the main motor (1), one end of pipe three (27) is connected to the high-level water tank (26), and the other end of pipe three (27) is connected to the output end of the pump station pipeline (3).

7. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 6, characterized in that, It also includes a low-level tank (28), which is located below the high-level water tank (26). One end of pipe four (29) is connected to the low-level tank (28), and the other end of pipe four (29) is connected to pipe two (25). A valve one is installed on pipe four (29), and a valve two is installed on pipe two (25). The valve two is located above the valve one.

8. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 7, characterized in that, It also includes a ring-shaped heat pipe (30), which is fitted onto the housing of the main motor (1). One end of heat pipe one (31) is connected to the ring-shaped heat pipe (30), and the other end of heat pipe one (31) extends into the high-level water tank (26). One end of heat pipe two (32) is connected to the ring-shaped heat pipe (30), and the other end of heat pipe two (32) extends into the low-level tank (28).

9. The intelligent control and antifreeze facility for an integrated pump station as described in claim 7, characterized in that, It also includes geothermal pipe one (33), the heat absorption ends of geothermal pipe one (33) and geothermal pipe two (34) are buried in the soil, and the heat release ends of geothermal pipe one (33) and geothermal pipe two (34) extend into the high-level water tank (26) and the low-level tank (28) respectively.

10. The intelligent control and antifreeze facility for an integrated pumping station as described in claim 7, characterized in that, It also includes multiple temperature sensors (35), which are installed on the main pump (2), pump station pipeline (3), high-level water tank (26), low-level tank (28) and main motor (1), respectively. A miniature weather station (36) is installed on the control box (4).

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