Energy-saving water supply device and control method

Abstract

The application relates to an energy-saving water supply device and a control method, and relates to the field of centrifugal pumps, which comprises a pump body, a motor for driving the pump body to perform centrifugal motion, and a rack for supporting the pump body and the motor, further comprises a water-saving device arranged on the rack and used for collecting and recycling the leaked water; the water-saving device comprises a water collecting mechanism arranged on the rack and used for storing the leaked water, a guiding mechanism arranged between the motor and the pump body and used for guiding the leaked water into the water collecting mechanism, and a cooling mechanism arranged at the tail of the motor and used for taking water from the water collecting mechanism and cooling the motor. The application has the effect of avoiding water resource waste of the centrifugal pump.

Description

Technical Field

[0001] This invention relates to the field of centrifugal pumps, and more particularly to an energy-saving water supply device and control method. Background Technology

[0002] A centrifugal pump is a vane pump that generates centrifugal force through a rotating impeller, converting mechanical energy into fluid kinetic energy and pressure energy. It is the most commonly used fluid transport equipment in modern industry.

[0003] Currently, the main components of a centrifugal pump include the volute, impeller, impeller cover, and motor. The impeller cover and motor are generally sealed with a packing seal or mechanical seal to prevent liquid from leaking into the motor and affecting its normal operation.

[0004] When a centrifugal pump is used for a long time, the sealing structure will inevitably corrode and age due to contact with water. This makes it impossible for the sealing structure to guarantee a complete seal during operation, and some water resources will inevitably be lost during use. Summary of the Invention

[0005] To avoid wasting water resources in centrifugal pumps, this invention provides an energy-saving water supply device and control method.

[0006] In a first aspect, the present invention provides an energy-saving water supply device, which adopts the following technical solution:

[0007] An energy-saving water supply device includes a pump body, a motor that drives the pump body to perform centrifugal motion, and a frame that supports the pump body and the motor. It also includes a water-saving device installed on the frame for collecting and reusing leaked water.

[0008] The water-saving device includes a water collection mechanism installed on the frame for storing leaked water, a guiding mechanism installed between the motor and the pump body for guiding leaked water into the water collection mechanism, and a cooling mechanism installed at the tail of the motor for taking water from the water collection mechanism and cooling the motor.

[0009] By adopting the above technical solution, the guiding mechanism guides the leaked water in the pump body to prevent the water from being directly lost; the water collection mechanism stores the leaked water to provide a water source for motor cooling; the cooling mechanism uses the recycled water to cool the motor, reusing the leaked water, avoiding water waste in the centrifugal pump, reducing water waste, and improving the utilization rate of leaked water.

[0010] Optionally, the guiding mechanism includes an end cover disposed on the pump body near the motor end to prevent leakage of water, a sealing ring disposed between the end cover and the output shaft of the motor, a brush disposed on the output shaft of the motor and rotating with the motor, and a guiding pipe communicating with the water collection mechanism.

[0011] The bottom of the end cover has a guide hole for the leakage water to be concentrated and guided into the water collection mechanism, and the inside of the end cover has a guide groove for guiding the leakage water into the guide hole; the brush is axially rotatably arranged and located inside the end cover near the motor.

[0012] By adopting the above technical solution, the end cover and sealing ring prevent the leakage water from continuing to flow out. The brush rotates with the motor, which can not only clean the impurities on the inner wall of the end cover, but also throw the leakage water away from the sealing ring, further enhancing the sealing performance. The guide groove gathers the dispersed leakage water and guides it to the guide hole, and then flows into the water collection mechanism through the guide pipe, improving the collection efficiency.

[0013] Optionally, the guide tube is provided with a connection structure to enhance the sealing performance;

[0014] The connection structure includes a sleeve for connecting the end of the guide tube, a collar that slides on the outside of the sleeve, a fixing bead that is movably embedded in the sleeve wall thickness, and a rubber ring that slides on the inner wall of the sleeve.

[0015] The inner wall of the rubber ring has a rubber ring for sealing the guide tubes at both ends. A control block is provided on the outer wall of the rubber ring. An embedding groove for the control block is opened on the inner wall of the collar. A control groove for the control block to pass through and slide and a sliding groove for the rubber ring to slide are opened on the sleeve.

[0016] The outer side of the guide tube is fitted with a locking cylinder for locking and fixing the sleeve. The end of the locking cylinder protrudes outward with a retaining ring, and the retaining ring has an inclined guide surface that limits and cooperates with one end of the sliding groove. The locking cylinder is provided with a fixing groove for pressing the fixing bead.

[0017] By adopting the above technical solution, the rubber ring and rubber collar fit against the outer wall of the guide tube, enhancing the sealing performance and preventing water leakage; the collar slides on the sleeve, pressing the fixing bead inward, so that the fixing bead is embedded in the fixing groove of the locking cylinder for initial fixation; the control block follows the collar to control the sliding of the rubber ring, clamping the retaining ring, thus improving the sealing performance and stability.

[0018] Optionally, the cooling mechanism includes a sprayer connected to the water collection mechanism and spraying water atomized towards the tail of the motor, a fan disposed between the sprayer and the motor to blow water mist toward the motor, a cover covering the fan at the tail of the motor to form a cooling chamber, a prism disposed in the cooling chamber, and a sponge disposed at the tail of the motor to prevent water mist from directly contacting the motor.

[0019] A recovery structure for recovering cooling water is provided between the cover and the water collection mechanism. The recovery structure includes a recovery hole opened at the bottom of the cover and a recovery pipe connecting the recovery hole and the water collection mechanism.

[0020] A filter is installed on the recovery pipe.

[0021] By adopting the above technical solution, the sprayer atomizes the recycled water, and the fan blows the water mist towards the motor to dissipate heat. The prism mesh can directly collect excess water mist and condense it into water droplets, and can also capture water vapor in the cooling chamber for condensation and secondary recycling, thus improving cooling efficiency. The sponge prevents water mist from directly contacting the motor and causing aging. The cooled water flows back to the water collection mechanism through the recycling hole and recycling pipe, and the filter removes impurities, realizing water recycling and improving water conservation.

[0022] Optionally, the water collection mechanism includes a water collection tank mounted on the frame, the water collection tank having a low-temperature water chamber and a high-temperature water chamber;

[0023] The low-temperature water tank is connected to the guide pipe and the sprayer and is used to collect leaked water; the high-temperature water tank is connected to the recovery pipe and is used to recover the cooling water of the cooling mechanism.

[0024] An insulation layer is provided between the low-temperature water tank and the high-temperature water tank.

[0025] By adopting the above technical solution, the low-temperature water tank stores the leaked water flowing out of the end cap and supplies it to the sprayer to cool the motor; the high-temperature water tank stores the cooled warm water, and the insulation layer prevents the low-temperature water from heating up due to heat exchange.

[0026] Secondly, this application provides an energy-saving water supply control method, which adopts the following technical solution:

[0027] A method for controlling energy-saving water supply includes:

[0028] Step 1: Obtain the input and output flow rates of the centrifugal pump;

[0029] Step 2: The leakage amount can be obtained based on the input flow rate, output flow rate, and preset leakage time;

[0030] Step 3: When the leakage exceeds the preset reference water level, control the cooling mechanism to cool the motor using the preset cooling method, and obtain the water level of the collection tank in real time.

[0031] Step 4: When the water level in the storage tank is higher than the preset overflow level, control the water collection tank to connect to the pump body's inlet until the water level in the storage tank is no higher than the reference usage level, then control the water collection tank to disconnect from the pump body.

[0032] By adopting the above technical solution, the leakage is calculated based on the difference between the input and output flow rates. The water level is used as a reference to determine whether the water in the collection tank meets the cooling requirements, thus avoiding the cooling mechanism from running idle. When the leakage exceeds the reference water level, the pump is activated to use the leaked water for motor cooling. When the water level in the storage tank exceeds the overflow level, the excess water is automatically returned to the inlet of the pump body to rejoin the water supply cycle, thus avoiding the waste of leaked water and realizing the closed-loop utilization of water resources.

[0033] Optionally, in step 3, the preset cooling method includes:

[0034] Step 31: Obtain real-time temperature and humidity information inside the cover;

[0035] Step 32: When the real-time temperature information is higher than the preset reference temperature information, control the sprayer to start and blow water mist towards the motor at the preset fan speed until the real-time temperature information is lower than the reference temperature information, and record the number of times the sprayer is started.

[0036] Step 33: Determine the total consumption based on the number of times the sprayer is started and the preset rated spray volume, and determine the water level correction amount based on the total consumption;

[0037] Step 34: When the real-time humidity information is higher than the preset reference humidity information, control the fan speed to increase, and obtain the amount of water recovered. Based on the amount of water recovered, correct the water level correction amount to obtain the secondary water level correction amount.

[0038] Step 35: Adjust the water level in the storage tank according to the secondary water level correction amount to control the water level in the collection tank at the reference operating water level.

[0039] By adopting the above technical solution, when the real-time temperature is too high, the sprayer is triggered to start spraying for cooling. When the real-time humidity is too high, the fan speed is increased to accelerate water vapor evaporation, thus avoiding excessive humidity in the cooling chamber and causing the motor to get damp. The total cooling water consumption is calculated based on the number of spray activations, and the water level in the collection tank is adjusted in combination with the amount of recycled water to ensure that the water storage is always maintained above the benchmark usage level, meeting the cooling needs and improving the water resource utilization rate.

[0040] Optionally, in step 34, the method for detecting the amount of recycled water includes:

[0041] Step 341: Obtain the specifications of the prism mesh, the specifications of the sponge, and the real-time total weight of the sponge after absorbing water;

[0042] Step 342: Determine the condensation amount based on the specifications of the prism mesh and the rated spray volume;

[0043] Step 343: Determine the condensation efficiency based on the sponge's specifications, real-time temperature, and real-time humidity information, and determine the real-time moisture content based on the sponge's specifications and real-time total weight.

[0044] Step 344: Determine the sponge state based on the preset rated moisture content and real-time moisture content. The sponge state includes the saturated state and the replenished state.

[0045] Step 345: Determine the sponge water volume based on the sponge state and condensation efficiency. The sponge water volume includes saturated water volume and replenishment water volume.

[0046] Step 346: Determine the amount of water to be recycled based on the amount of water in the sponge and the amount of condensation;

[0047] Step 347: When the amount of water recovered is not less than the preset baseline recovery amount, control the cooling mechanism to connect with the high-temperature water tank.

[0048] By adopting the above technical solution, the amount of water recovered includes the amount of condensation from the prism mesh plus the amount of condensation from the sponge. The calculation of the amount of water recovered is dynamically adjusted according to the state of the sponge. When the amount of water recovered reaches the benchmark amount, the high-temperature water chamber is connected to ensure that the cooled high-temperature water and low-temperature water are stored separately to avoid mixing.

[0049] Optionally, in step 347, after controlling the cooling mechanism to connect with the water collection tank, the following method is also included:

[0050] Step 36: Obtain the high temperature and high pressure values ​​of the high-temperature water tank and the low temperature value of the low-temperature water tank.

[0051] Step 37: Determine the reference temperature range based on the low temperature value;

[0052] Step 38: When the high-temperature pressure is higher than the preset reference pressure, and the high-temperature temperature value is within the reference temperature range, control the high-temperature water tank to connect to the low-temperature water tank.

[0053] Step 39: When the high-temperature pressure is higher than the preset reference pressure and the high-temperature temperature value exceeds the reference temperature range, control the input port of the high-temperature water tank to connect to the pump body.

[0054] By adopting the above technical solution, the temperature and pressure of the high-temperature water tank are monitored to avoid equipment damage caused by excessive pressure inside the tank. When the high-temperature water temperature is within the reference temperature range, it is close to the low-temperature water temperature. At this time, the high-temperature water tank is connected to the low-temperature water tank, and the high-temperature water is discharged into the low-temperature water tank to continue to participate in the circulation. When the high-temperature water temperature exceeds the reference range, the high-temperature water is returned to the inlet of the pump body to avoid the high-temperature water affecting the cooling water quality of the low-temperature water tank, while realizing the recycling of high-temperature water.

[0055] Optionally, in step 35, before correcting the water level based on the secondary water level correction amount, and after increasing the fan speed, the following steps are included:

[0056] Step 351: Obtain the rate of change of humidity per unit time;

[0057] Step 352: Determine the water absorption efficiency of the sponge based on the humidity change rate;

[0058] Step 353: When the water absorption efficiency is less than the preset baseline efficiency, obtain the sponge status;

[0059] Step 354: When the sponge state is consistent with the saturated state, control the real-time moisture content to drop to the preset initial state;

[0060] Step 355: Correct the amount of condensation on the prism based on the fan speed to obtain the corrected amount of condensation;

[0061] Step 356: Determine the corrected recovery water volume based on the corrected condensate volume and the rated water content.

[0062] By adopting the above technical solution, the sponge's water absorption efficiency is determined based on the humidity change rate. When the sponge is saturated and its water absorption efficiency decreases, the sponge's state is obtained. When it is saturated, the sponge's water content is reduced to zero to enhance its water absorption. The amount of condensation on the prism is corrected in conjunction with the fan speed, and the amount of recycled water is readjusted.

[0063] In summary, this application includes at least one of the following beneficial technical effects:

[0064] 1. The guiding mechanism guides the leaking water in the pump body to prevent direct water loss; the water collecting mechanism stores the leaking water to provide a water source for motor cooling; the cooling mechanism uses the recycled water to cool the motor, reusing the leaking water to avoid water waste in the centrifugal pump, reduce water waste, and improve the utilization rate of leaking water.

[0065] 2. The sprayer atomizes the recycled water, and the fan blows the water mist towards the motor to cool it down. The prism mesh can directly collect excess water mist and condense it into water droplets, and it can also capture water vapor in the cooling chamber for secondary recycling, thus improving cooling efficiency. The sponge prevents water mist from directly contacting the motor and causing aging. The cooled water flows back to the water collection mechanism through the recycling hole and recycling pipe, and the filter removes impurities, realizing water recycling and improving water conservation.

[0066] 3. Monitor the temperature and pressure of the high-temperature water tank to prevent excessive pressure from damaging the equipment. When the high-temperature water temperature is within the reference temperature range, it approaches the low-temperature water temperature. At this time, connect the high and low temperature water tanks and discharge the high-temperature water into the low-temperature water tank to continue circulating. When the high-temperature water temperature exceeds the reference range, return the high-temperature water to the inlet of the pump body to prevent the high-temperature water from affecting the cooling water quality of the low-temperature water tank, while realizing the recycling of high-temperature water. Attached Figure Description

[0067] Figure 1 This is a structural diagram of an energy-saving water supply device;

[0068] Figure 2 This is a schematic diagram of the guiding mechanism;

[0069] Figure 3 This is a structural diagram of the connection structure;

[0070] Figure 4 This is a sectional view of the connection structure;

[0071] Figure 5 This is an exploded view of the connection structure;

[0072] Figure 6 It is a cross-sectional view of the water collection mechanism and the cooling mechanism;

[0073] Figure 7 This is a flowchart illustrating an energy-saving water supply control method;

[0074] Figure 8 This is a logic diagram of an energy-saving water supply control method.

[0075] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Pump body; 2. Motor; 3. Frame; 4. Water-saving device; 10. Seal; 40. Water collection mechanism; 41. Guiding mechanism; 42. Cooling mechanism; 410. End cover; 411. Sealing ring; 412. Brush; 413. Guide pipe; 4100. Guide hole; 4101. Guide groove; 5. Connecting structure; 50. Sleeve; 51. Collar; 52. Fixing bead; 53. Rubber ring; 530. Rubber ring; 531. Control block; 510. Embedded groove; 500. Control 501, Sliding groove; 54, Locking cylinder; 5400, Inclined guide surface; 540, Snap ring; 541, Fixing groove; 420, Sprayer; 421, Fan; 422, Cover; 423, Ribbon mesh; 424, Sponge; 425, Recovery structure; 4250, Recovery hole; 4251, Recovery pipe; 4252, Filter; 4220, Cooling chamber; 4200, Water intake section; 4201, Spray section; 400, Water collection tank; 401, Low temperature water chamber; 402, High temperature water chamber; 403, Insulation layer; 4030, Balance port. Detailed Implementation

[0076] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0077] This application discloses an energy-saving water supply device.

[0078] Reference Figure 1An energy-saving water supply device includes a pump body 1, a motor 2, a frame 3, and a water-saving device 4. The pump body 1 is externally connected to an inlet pipe and an outlet pipe. The inlet pipe connects to a water source, allowing the pump body 1 to directly pump water from the source, pumping water from the inlet pipe to the outlet pipe. The motor 2 provides power to the pump body 1, directly driving the impeller within the pump body 1 to perform centrifugal motion. The frame 3 serves as a support for the centrifugal pump, located at the bottom of the overall centrifugal pump assembly, which is mounted on the frame 3. The water-saving device 4 is mounted on the frame 3 and is used to collect and reuse water leaking between the motor 2 and the pump body 1.

[0079] Reference Figure 1 The water-saving device 4 includes a water collection mechanism 40, a guiding mechanism 41, and a cooling mechanism 42. The water collection mechanism 40 is mounted on the frame 3 and is used to store leaked water; the guiding mechanism 41 is located between the pump body 1 and the motor 2 and is used to guide the leaked water leaking from the pump body 1 into the water collection mechanism 40; the cooling mechanism 42 is located at the tail of the motor 2 and is used to draw the leaked water from the water collection mechanism 40 and cool the motor 2.

[0080] Reference Figure 1 and Figure 2 The guiding mechanism 41 includes an end cover 410, a sealing ring 411, a brush 412, and a guiding pipe 413. The end cover 410 is fitted onto the pump body 1 near the motor 2, and the output shaft of the motor 2 passes through the end cover 410. The sealing ring 411 is disposed between the end cover 410 and the motor 2 to enhance the sealing performance of the end cover 410. The brush 412 is axially rotatably mounted on the output shaft of the motor 2. The brush 412 is located inside the end cover 410 and fits against the end of the end cover 410 near the motor 2. The guiding pipe 413 is disposed below the end cover 410. One end of the guiding pipe 413 is connected to the bottom of the end cover 410, and the other end is connected to the water collection mechanism 40, which is used to guide the leaking water overflowing from the seal 10 in the pump body 1 into the water collection mechanism 40.

[0081] Reference Figure 2 The brush 412 prevents leaking water from approaching the sealing ring 411. The brush bristles are arranged in a rotating manner and rotate together with the motor 2 to throw away the approaching leaking water. The end cover 410 has a guide groove 4101 inside. The guide groove 4101 is spirally arranged along the axial direction of the end cover 410. The guide groove 4101 is deepened near the bottom of the end cover 410. The bottom of the end cover 410 has a guide hole 4100. The guide groove 4101 communicates with the guide hole 4100 to guide the leaking water into the guide hole 4100.

[0082] Reference Figure 1 , Figure 3 and Figure 4A connecting structure 5 connects the guide pipe 413 to the water collection mechanism 40. The connecting structure 5 connects the guide pipe 413 and improves the sealing of the connecting pipe. The connecting structure 5 includes a sleeve 50, a collar 51, a fixing bead 52, and a rubber ring 53. The sleeve 50 connects to the port of the guide pipe 413, the collar 51 slides on the sleeve 50, the fixing bead 52 moves within the wall thickness of the sleeve 50, and the rubber ring 53 slides on the inner wall of the sleeve 50.

[0083] Reference Figure 3 and Figure 4 The inner wall of the rubber ring 53 has a rubber ring 530, which is located between the two guide tubes 413. The sealing performance is improved by clamping the rubber ring 530. A control block 531 is embedded in the outer wall of the rubber ring 53. The collar 51 has an embedding groove 510 for the control block 531 to be embedded in. The sleeve 50 has a control groove 500 for the control block 531 to pass through and slide. The sleeve 50 also has a sliding groove 501 for the rubber ring 53 to slide. The collar 51 slides on the sleeve 50, which drives the control block 531 to slide in the control groove 500, and simultaneously drives the rubber ring 53 to slide together on the inner wall of the sleeve 50.

[0084] Reference Figure 4 and Figure 5 A locking cylinder 54 is provided at the end of the guide tube 413 that is connected to the sleeve 50. The ends of the locking cylinders 54 connected close to each other in the two guide tubes 413 have retaining rings 540. The retaining rings 540 have inclined guide surfaces 5400. The inclined guide surfaces 5400 guide the retaining rings 540 into the sleeve 50 and embed them in the sliding groove 501 between the rubber ring 53 and the sleeve 50. When the sleeve 51 slides to one side on the sleeve 50, it pushes the locking cylinders 54 on the same side, together with the retaining rings 540, out of the sliding groove 501. A fixing groove 541 is provided on the outer surface of the locking cylinder 54 that contacts the sleeve 50. The fixing groove 541 fits the fixing bead 52 and is arc-shaped. The fixing groove 541 is fixed in place with the fixing bead 52. When the collar 51 drives the rubber ring 53 to push the locking cylinder 54 out, the fixing bead 52 slides out along the arc of the fixing groove 541, without affecting the exit of the locking cylinder 54 and the guide tube 413.

[0085] In this embodiment, the connecting mechanism is used to connect the guide tubes 413. The locking cylinder 54 and the fixing bead 52 are symmetrically structured to fix and lock the guide tubes 413 on both sides. In other embodiments, the fixing bead 52 and the locking cylinder 54 can be set to one side for direct installation at the pipe inlet, connecting only one side of the water pipe.

[0086] Reference Figure 6 The cooling mechanism 42 includes a sprayer 420, a fan 421, a shroud 422, a mesh 423, and a sponge 424.

[0087] Reference Figure 6The cover 422 wraps around the tail of the motor 2 and forms a cooling chamber 4220.

[0088] In other embodiments, the sprayer 420 may be disposed inside the cooling chamber 4220. In this embodiment, the sprayer 420 is disposed outside the cooling chamber 4220. The sprayer 420 includes a water intake part 4200 and a spraying part 4201. The water intake part 4200 is connected to the water collection mechanism 40 to absorb leaked water. The spraying part 4201 is aimed at the cooling chamber 4220 and sprays water mist in the direction of the motor 2.

[0089] Reference Figure 6 The fan 421 is installed in the cooling chamber 4220, and the airflow of the fan 421 is directed toward the motor 2, blowing water mist toward the motor 2.

[0090] Reference Figure 6 The sponge 424 is placed between the motor 2 and the fan 421 and close to the motor 2. There is a gap between the motor 2 and the sponge 424 to prevent the sponge 424 from directly contacting the motor 2 and weakening the heat dissipation effect. The sponge 424 absorbs water mist, reduces the humidity in the cooling chamber 4220, and dissipates heat from the motor 2. At the same time, it prevents water mist from directly contacting the motor 2, which would cause the motor 2 to age faster.

[0091] Reference Figure 6 The prism 423 is located between the sponge 424 and the fan 421. The prism 423 is close to the sponge 424. The prism 423 is made of a material with high density and strong hydrophilicity (if it is a metal material, a material with high thermal conductivity is selected; if it is a polymer material, a material with low thermal conductivity is selected), such as brass. The prism 423 can directly condense excess water mist into water droplets, or it can capture water vapor in the cooling chamber 4220 and condense it into water droplets.

[0092] Reference Figure 6 A recovery structure 425 is provided between the cover 422 and the water collection mechanism 40. The recovery mechanism is used to recover the water cooled in the cooling chamber 4220 and guide it back to the water collection mechanism 40.

[0093] Reference Figure 6 The recovery structure 425 includes a recovery hole 4250 and a recovery pipe 4251. The recovery hole 4250 is located at the bottom of the cover 422 and guides the cooling water in the cooling chamber 4220 into the water collection mechanism 40. The recovery pipe 4251 connects the recovery hole 4250 and the water collection mechanism 40, and a filter 4252 is provided on the recovery pipe 4251 to return the filtered cooling water to the water collection mechanism 40.

[0094] Reference Figure 6 The water collection mechanism 40 includes a water collection tank 400. The water collection tank 400 is used to store recycled water.

[0095] Reference Figure 6 The water collection tank 400 comprises a low-temperature water chamber 401 and a high-temperature water chamber 402. The low-temperature water chamber 401 stores low-temperature leakage water that overflows from between the pump body 1 and the motor 2; the high-temperature water chamber 402 stores high-temperature cooling water from the cooling chamber 4220 after cooling. A heat insulation layer 403, which is a vacuum layer, is provided between the low-temperature water chamber 401 and the high-temperature water chamber 402 to prevent temperature interference between them. A balancing port 4030 is provided in the vacuum layer to balance the air pressure in the heat insulation layer 403, preventing damage to the water collection tank 400 due to excessive cooling or heating.

[0096] The implementation principle of an energy-saving water supply device according to an embodiment of the present invention is as follows: the end cover 410 covers the end of the pump body 1 near the motor 2, and the sealing ring 411 enhances the sealing performance to prevent the leaked water from continuing to spread outward; at the same time, the brush 412 on the output shaft of the motor 2 rotates synchronously with the motor 2 to throw away the leaked water near the sealing ring 411.

[0097] The guide groove 4101 on the inner wall of the end cover 410 collects the dispersed leaked water. The bottom of the guide groove 4101 is deepened to form a natural flow slope, guiding the leaked water into the guide hole 4100 at the bottom of the end cover 410. The rotating brush 412 can also clean the impurities in the guide groove 4101. The guide hole 4100 is connected to the water collection mechanism 40 through the guide pipe 413, and the leaked water flows directly into the water collection tank 400 through the guide pipe 413.

[0098] After the locking cylinder 54 at the end of the guide tube 413 is inserted into the sleeve 50, the inclined guide surface 5400 of the retaining ring 540 guides and positions it, and the rubber ring 530 on the inner wall of the rubber ring 53 fits against the outer wall of the guide tube 413 to form a preliminary seal; the collar 51 drives the control block 531 to move along the control groove 500, and simultaneously squeezes the rubber ring 53, so that the rubber ring 533 further clamps the guide tube 413, while the fixing bead 52 in the wall thickness of the sleeve 50 is embedded in the fixing groove 541 of the locking cylinder 54.

[0099] The water intake section 4200 of the sprayer 420 draws low-temperature leaked water from the low-temperature water chamber 401 of the water collection tank 400, and sprays the water into the cooling chamber 4220 after atomizing it through the spray section 4201. After the fan 421 is started, the water mist is blown towards the tail of the motor 2. The water mist is evenly dispersed by the prism mesh 423 and makes full contact with the surface of the motor 2. The water vapor absorbs heat through evaporation to achieve rapid cooling. The sponge 424 prevents the water mist from directly contacting the outer shell of the motor 2. At the same time, the sponge 424 absorbs some of the water mist, reducing the humidity in the cooling chamber 4220 and thus cooling down. The prism mesh 423 condenses excess water mist into water droplets to prevent excessive accumulation of water mist. The cover 422 encloses the tail of the motor 2 to form a closed cooling chamber 4220. The recovery hole 4250 at the bottom of the cooling chamber 4220 collects condensed water droplets and residual cooling water, which are then returned to the high-temperature water tank 402 through the recovery pipe 4251. The filter 4252 on the recovery pipe 4251 filters impurities in the water to prevent impurities from entering the water collection tank 400 and affecting the circulation.

[0100] The low-temperature water chamber 401 and the high-temperature water chamber 402 inside the water collection tank 400 are isolated by a vacuum insulation layer 403. The low-temperature water chamber 401 stores the newly collected low-temperature leaked water, which is directly supplied to the sprayer 420 as a cooling water source to ensure cooling efficiency. The high-temperature water chamber 402 stores the cooling water that has been heated after cooling the motor 2. The insulation layer 403 prevents heat exchange between the low-temperature water chamber 401 and the high-temperature water chamber 402 to avoid affecting the cooling effect. The balance port 4030 on the vacuum layer can balance the air pressure inside the chamber to prevent the water collection tank 400 from deforming due to temperature changes.

[0101] Reference Figure 7 and Figure 8 Based on the same inventive concept, embodiments of the present invention provide an energy-saving water supply control method, comprising:

[0102] Step 1: Obtain the input and output flow rates of the centrifugal pump.

[0103] Input flow rate refers to the speed at which water flows into the pump body 1 through the input pipe of the centrifugal pump per unit time, which represents the water supply rate from the water source to the pump body.

[0104] Output flow rate refers to the speed at which water flows out of the pump body 1 through the centrifugal pump output pipe per unit time, which represents the water output rate of the pump body.

[0105] Obtain the water flow velocity flowing into the centrifugal pump and the water flow velocity flowing out of the centrifugal pump.

[0106] Step 2: The leakage amount can be obtained based on the input flow rate, output flow rate, and preset leakage time.

[0107] The preset leakage time refers to the continuous operating time set in advance for calculating the leakage water volume of the centrifugal pump.

[0108] Leakage refers to the total amount of water that overflows from the seal 10 between the pump body 1 and the output shaft of the motor 2 during the leakage time.

[0109] When input flow rate ( ) and output flow rate ( The leakage rate remains constant within a preset leakage time (t) (e.g., under rated operating conditions for a centrifugal pump), and the leakage amount ( )for .

[0110] When the flow rate changes over time and the input / output flow rate is unstable (such as during start-up and shutdown), the total difference needs to be calculated by integration or discrete summation. The formula is:

[0111] .

[0112] in: For a moment Instantaneous input flow rate, For a moment The instantaneous output flow rate has an integral interval of [0, t] (preset leakage time).

[0113] The flow velocity is sampled periodically by sensors, and summation is used instead of integration (sampling period). ≤1s, accuracy meets requirements):

[0114] ;

[0115] in:

[0116] Number of samples ;

[0117] : No. The instantaneous input flow rate of the next sample;

[0118] : No. Instantaneous output flow rate of the next sample;

[0119] Sampling period (0.1~1s is commonly used in engineering).

[0120] Input flow rate The theoretical input flow rate of the corresponding centrifugal pump (Calculated from pump specifications); Output flow rate : The actual output flow rate of the corresponding centrifugal pump (Measured by the outlet flow meter); Leakage : That is, the cumulative volumetric loss This is equivalent to the actual leakage volume in the water collection tank 400 (when there is no other water inflow / leakage), and can be directly used to determine the value of "maximum safe water storage level". ≥ (Time triggers backflow / drainage).

[0121] Step 3: When the leakage exceeds the preset reference water level, the cooling mechanism 42 is controlled to cool the motor 2 using a preset cooling method, and the water level of the collection tank 400 is obtained in real time.

[0122] The preset baseline water level refers to the minimum water level in the water collection tank 400 that can meet the water intake required for the sprayer 420 to perform one complete spray.

[0123] The preset cooling method refers to the pre-set cooling mechanism 42's operating cooling mode, i.e., the sprayer 420 absorbs the leaked water and atomizes it to spray onto the motor 2 to achieve a cooling effect.

[0124] The water level refers to the actual water level height corresponding to the current water volume stored in the water collection tank 400, as detected by the drift ball and sensing device installed in the water collection tank 400. This represents the actual water volume in the water collection tank 400.

[0125] When the leakage amount exceeds the minimum water level required for the sprayer 420 to perform one complete spraying action in the water collection tank 400, the sprayer 420 is controlled to start drawing in the leaked water and spray cooling for the motor 2. The water level is monitored in real time by a drift ball and a sensor installed in the water collection tank 400. This step only applies when the water collection tank 400 is initially empty. If the water collection tank 400 initially contains water, the actual water level is directly detected.

[0126] Step 4: When the water level in the storage tank is higher than the preset overflow level, control the water collection tank 400 to connect to the input port of the pump body 1 until the water level in the storage tank is not higher than the reference water level, then control the water collection tank 400 to disconnect from the pump body 1.

[0127] The preset overflow level refers to the maximum safe water level of the water collection tank 400, which is the upper limit of the water level that can be stored under normal operation, without the risk of overflow, and without abnormal pressure.

[0128] When the water level in the water collection tank 400 is higher than the maximum safe water storage level of the water collection tank 400, the connection valve between the water collection tank 400 and the pump body 1 is opened, and the water level in the water collection tank 400 is controlled below the safe water level before the connection valve is closed.

[0129] The cooling method includes the following steps:

[0130] Step 31: Obtain real-time temperature and humidity information inside the cover 422.

[0131] Real-time temperature information refers to the temperature data in the cooling chamber 4220 collected in real time by a temperature sensor installed inside the cover 422.

[0132] Real-time humidity information refers to the humidity data in the cooling chamber 4220 collected in real time by a humidity sensor installed inside the cover 422.

[0133] Temperature and humidity sensors installed inside the casing 422 are used to collect and provide real-time data on humidity and temperature in the cooling chamber 4220.

[0134] Step 32: When the real-time temperature information is higher than the preset reference temperature information, control the sprayer 420 to start and blow water mist to the motor 2 at the preset fan speed until the real-time temperature information is lower than the reference temperature information, and record the number of times the sprayer 420 is started.

[0135] The reference temperature information refers to the highest temperature of motor 2 within the temperature range where it can operate safely and stably.

[0136] The fan speed refers to the rotational speed of the fan 421 inside the cooling chamber 4220, with the preset wind speed kept constant at 0~0.5m / s.

[0137] The number of starts refers to the cumulative number of times the sprayer 420 is continuously triggered after it starts (continuous triggering is counted from one time, calculated by the interval time; exceeding the interval time means it is no longer continuous triggering). The number of starts is reset to zero and recalculated after continuous triggering is interrupted.

[0138] When the real-time temperature value is higher than the maximum temperature suitable for the motor 2 to operate, the sprayer 420 is started, drawing water from the water collection tank 400 and spraying it towards the motor 2. Simultaneously, the fan 421 is controlled to blow the water mist towards the motor 2 at a preset speed. Under normal circumstances, the wind speed of the fan 421 is kept constant at 0~0.5m / s until the real-time temperature data is lower than the reference temperature information, at which point the sprayer 420 is stopped, and the number of times the sprayer 420 is started is recorded.

[0139] Step 33: Determine the total consumption based on the number of times the sprayer 420 is started and the preset rated spray volume, and determine the water level correction amount based on the total consumption.

[0140] The preset rated spray volume refers to the amount of atomized water sprayed when the sprayer 420 is started once.

[0141] Total consumption refers to the total amount of atomized water used by the sprayer 420 during a single continuous start-up process (continuous start-up is calculated from the first start-up, and is not considered continuous start-up if the interval is exceeded).

[0142] The water level correction amount refers to the amount of water consumed during each continuous start-up of the sprayer 420, converted into a numerical value, and used to compensate for the deviation caused by the consumption of water by the sprayer 420.

[0143] Based on the number of times the sprayer 420 is started and the amount of water consumed during a single start, the total water consumption of the sprayer 420 during continuous operation can be determined. That is, total consumption = number of sprayer 420 starts × rated spray volume per start × spray efficiency coefficient (correcting for actual losses); water level correction = total consumption ÷ cross-sectional area of ​​the water tank (converting "volume consumption" into "water level drop" to compensate for water level deviation in the tank); the formula is: .

[0144] in:

[0145] : 420 sprayer starts;

[0146] Rated spray volume per spray;

[0147] Spray efficiency coefficient: The ratio of actual spray volume to rated spray volume (corrected for atomization loss, pipeline residue, etc.), with a value of 0.9~0.98;

[0148] Total spray consumption.

[0149] Startup count The sprayer 420 control module (such as a PLC) counts and records each start signal in real time (triggered by the rising edge to avoid repeated counting).

[0150] Spray efficiency coefficient Because the sprayer 420 suffers from atomization loss (some droplets escape directly without contacting the prism 423) and pipeline residue (the amount of water remaining in the pipeline after shutdown), it needs to be calibrated experimentally (e.g., if the rated spray volume is 5L and the actual collected volume is 4.75L, then...). =4.75 / 5=0.95);

[0151] Then calculate the water level correction amount ( ): ;

[0152] in:

[0153] : Water level correction amount, the amount of water level drop in the tank caused by the total consumption of spray;

[0154] Cross-sectional area of ​​the water tank: The effective cross-sectional area of ​​the spray water tank;

[0155] Total spray consumption.

[0156] Spray consumption causes the water level in the tank to drop, therefore the water level correction is a "negative correction," meaning the actual water level = the water level measured by the sensor + (here) (The measured water level should be positive; the drop should be added to reflect the actual water level after consumption.)

[0157] Step 34: When the real-time humidity information is higher than the preset baseline humidity information, control the fan speed to increase, and obtain the amount of water recovered. Based on the amount of water recovered, correct the water level correction amount to obtain the secondary water level correction amount.

[0158] The preset baseline humidity information refers to the highest humidity in the humidity range where motor 2 can operate safely and stably.

[0159] The amount of water recovered refers to the total amount of water that excess water vapor is condensed into water by the prism mesh 423 and sponge 424 during the cooling process.

[0160] The secondary water level correction amount refers to the amount that should be used to correct the water level in the collection tank 400 after taking into account the actual total water volume in the collection tank 400, the total consumption, and the recovered water volume (at this time, the water has not yet entered the collection tank 400). In other words, it is the amount used to correct and compensate for the actual total water volume in the collection tank 400.

[0161] When the real-time humidity value is higher than the maximum humidity suitable for motor 2 to operate, the control fan speed is increased to increase the water vapor evaporation rate of sponge 424 and condensation mesh, and the amount of water recovered at this time is obtained. The water level correction amount is then corrected based on the amount of water recovered to obtain the secondary correction amount of water level.

[0162] Experiments showed that the optimal condensation range was when the wind speed was maintained between 1 and 3 m / s, and that the fan speed was positively correlated with the humidity difference. The fan speed was then determined based on the humidity difference.

[0163]

[0164] in:

[0165] Fan speed 421 (real-time).

[0166] Fan speed: 421 (base speed);

[0167] Fan speed adjustment coefficient;

[0168] Real-time humidity;

[0169] Real-time baseline humidity.

[0170] Fan speed 42 increases the condensation rate of the prism mesh; additional recycled water volume = total recycled water volume after speed increase - baseline recycled water volume.

[0171] in:

[0172] Additional water recovery volume;

[0173] Real-time water volume recovery;

[0174] : Baseline recycled water volume;

[0175] : Condensation rate after acceleration;

[0176] : Baseline condensation rate ( ,in (This is the wind speed growth coefficient, and the corresponding data were obtained from experiments).

[0177] The additional recycled water will replenish the water tank, offsetting part of the water level drop caused by spray consumption. Therefore, the secondary correction amount = initial correction amount - water level rise corresponding to the additional recycled water amount: ;

[0178] in:

[0179] Secondary correction amount for water level;

[0180] Initial water level correction.

[0181] Step 35: Adjust the water level in the storage tank according to the secondary water level correction amount to control the water level in the collection tank 400 at the reference operating water level.

[0182] Based on the secondary water level correction, the water storage in the water collection tank 400 is corrected, and the water level in the water collection tank 400 is controlled to be higher than the reference water level to ensure that the water supply of the cooling mechanism 42 is always met.

[0183] The method for detecting the amount of recycled water includes the following steps:

[0184] Step 341: Obtain the specifications of the prism mesh 423, the specifications of the sponge 424, and the real-time total weight of the sponge 424 after absorbing water.

[0185] The specifications of prism mesh 423 include information such as the material, aperture size, and effective area unit of prism mesh 423.

[0186] The specifications of Sponge 424 include information such as its material, weight, and volume.

[0187] Real-time total weight refers to the real-time total weight of the sponge 424, which is directly detected by a weight sensor located at the bottom of the sponge 424.

[0188] Before installation, the specifications of the prism 423 and the sponge 424 are obtained by scanning the QR codes of the prism 423 and the sponge 424, and the real-time total weight of the sponge 424 is obtained by the weight sensor set at the bottom of the sponge 424.

[0189] Step 342: Determine the condensation amount based on the specifications of the prism mesh 423 and the rated spray volume.

[0190] Condensation amount refers to the total mass of atomized water condensed into liquid water by the prism mesh 423 based on its own specifications and rated spray volume. It includes the first condensation amount, which is the water mist directly contacting the sprayer 420 and condensing into water, and the second condensation amount, which is the water vapor in the cooling chamber 4220 captured and condensed into water by its own properties. The first condensation amount is related to the rated spray volume, and the second condensation amount is related to the real-time humidity and temperature. The correlation data are obtained and summarized by experiments, and will not be elaborated on here.

[0191] Step 343: Determine the condensation efficiency based on the specifications of sponge 424, real-time temperature information, and real-time humidity information, and determine the real-time moisture content based on the specifications of sponge 424 and real-time total weight.

[0192] Condensation efficiency refers to the ability of sponge 424 to convert water vapor in cooling chamber 4220 into liquid water under the current temperature and humidity conditions per unit time. It is determined by the specifications of sponge 424, real-time temperature information, and real-time humidity information (the lower the temperature and the higher the humidity, the higher the condensation efficiency).

[0193] Real-time moisture content refers to the amount of water in sponge 424 when the weight of the sponge 424 in its initial state without water is subtracted from the total weight in real time.

[0194] The water-condensing efficiency of sponge 424 is related to the ambient temperature and humidity, as well as the material of sponge 424. In this embodiment, the relationship between the water-condensing efficiency of sponge 424 and temperature and humidity was obtained from multiple experiments. The corresponding water-condensing efficiency was extracted by comparing real-time humidity and real-time temperature.

[0195] Step 344: Determine the state of sponge 424 based on the preset rated moisture content and real-time moisture content. The state of sponge 424 includes saturated state and replenished state.

[0196] The preset rated moisture content refers to the maximum amount of water that the sponge 424 absorbs when it reaches saturation, i.e., the maximum amount of water that the sponge 424 can absorb.

[0197] The state of sponge 424 refers to the water absorption state of sponge 424 based on the relative relationship between real-time water content and rated water content, including saturated state and replenished state.

[0198] The saturated state refers to the real-time moisture content of the sponge 424 being no less than the preset rated moisture content. At this point, the sponge 424 can no longer absorb water vapor, and its water absorption efficiency decreases significantly.

[0199] The hydration state refers to the real-time moisture content of sponge 424 being less than the preset rated moisture content, at which point sponge 424 has the ability to absorb water vapor.

[0200] The state of sponge 424 can be determined by its maximum water absorption capacity and real-time moisture content. The state of sponge 424 includes a saturated state and a replenished state. The saturated state refers to the state of sponge 424 when its moisture content is equal to its maximum water absorption capacity, while the replenished state refers to the state of sponge 424 when its moisture content is less than its maximum water absorption capacity.

[0201] Step 345: Determine the water volume of sponge 424 based on its state and condensation efficiency. The water volume of sponge 424 includes saturated water volume and replenished water volume.

[0202] The water volume of Sponge 424 refers to the amount of water vapor or mist that Sponge 424 condenses into water, and is divided into saturated water volume and replenished water volume according to the state of Sponge 424.

[0203] Saturated water volume refers to the amount of water vapor or mist that sponge 424 condenses into when it is saturated. Saturated water volume is not the same as the water content of sponge 424.

[0204] The amount of water replenished refers to the amount of water vapor or mist that the sponge 424 will condense into water when it is in a replenished state. Since the sponge 424 will not condense water vapor or mist into water when it is in a replenished state, the amount of water replenished is always zero.

[0205] Based on the state and condensation efficiency of sponge 424, the water volume of sponge 424 can be determined. The water volume of sponge 424 includes the saturated water volume in the saturated state and the replenished water volume in the replenished state. The saturated water volume is the amount of condensed water in the saturated state of sponge 424. Since sponge 424 is not saturated, the replenished water volume is a constant value of zero. The water volume of sponge 424 is convenient for subsequent calculations.

[0206] Step 346: Determine the amount of water to be recycled based on the amount of water and condensation in the sponge 424.

[0207] The amount of water recovered is equal to the amount of water in sponge 424 plus the amount of condensation in prism 423, resulting in cooling water.

[0208] When the sponge 424 is saturated, the amount of water recovered = the amount of saturated water + the amount of condensation.

[0209] When the sponge 424 is in a replenished state, the amount of water recovered = the amount of water replenished + the amount of condensation = 0 + the amount of condensation = the amount of condensation.

[0210] Step 347: When the amount of water recovered is not less than the preset baseline amount of water recovered, control the cooling mechanism 42 to connect with the high-temperature water tank 402.

[0211] The preset baseline recovery amount refers to: to avoid the cooling chamber 4220 from being connected to the high-temperature water tank 402 and affecting the temperature and humidity inside the cooling chamber 4220. A self-resetting switch is installed at the bottom of the cooling chamber 4220. When the recovery amount reaches the maximum weight that the self-resetting switch can bear, the self-resetting switch will automatically descend and recover the recovery amount of water at the bottom of the cooling chamber 4220 into the high-temperature water tank 402. Because the self-resetting switch cannot be completely sealed, it cannot be guaranteed that the actual amount of water reaching the trigger weight each time is consistent with the recovery amount. Therefore, the recovery amount cannot be calculated by triggering the self-resetting switch.

[0212] When the amount of recovered water is not less than the preset baseline recovery amount, the self-reset switch automatically descends, connecting the cooling chamber 4220 with the high-temperature water tank 402 to recover the cooling water. The switch automatically resets and closes after the water flows into the high-temperature water tank 402. (The water level refers to the water level in the low-temperature water tank 401. The recovered water does not directly enter the low-temperature water tank and does not directly affect the water level. The water level is adjusted after the water enters the low-temperature water tank 401. Before it flows into the low-temperature water tank 401, it is only counted as accumulated recovered water and is not included in the water volume of the low-temperature water tank 401.)

[0213] The steps following step 347, which connects the cooling mechanism to the water collection tank, also include:

[0214] Step 36: Obtain the high temperature and high pressure of the high temperature water tank 402 and the low temperature of the low temperature water tank 401.

[0215] The high temperature value refers to the real-time temperature of the cooling water stored in the high temperature water tank 402, which is heated by the motor 2, as detected by a temperature sensor installed in the high temperature water tank 402.

[0216] High-temperature pressure refers to the real-time pressure detected inside the high-temperature water chamber 402 by a pressure sensor installed in the high-temperature water chamber 402.

[0217] The low temperature value refers to the real-time temperature inside the low temperature water chamber 401 detected by a temperature sensor installed in the low temperature water chamber 401.

[0218] The real-time temperature and humidity in the high-temperature water chamber 402 are directly detected by temperature and humidity sensors installed in the high-temperature water chamber 402, and the real-time temperature in the low-temperature water chamber 401 is detected by temperature sensors installed in the low-temperature water chamber 401.

[0219] Step 37: Determine the reference temperature range based on the low temperature value.

[0220] The reference temperature range refers to the temperature range set based on the low temperature value that allows high temperature water and low temperature water to mix. It is usually ±5°C of the low temperature value to ensure that mixing does not affect the cooling effect of the cooling water source.

[0221] Step 38: When the high temperature pressure is higher than the preset reference pressure and the high temperature value is within the reference temperature range, control the high temperature water tank 402 to connect to the low temperature water tank 401.

[0222] The preset reference pressure refers to the maximum permissible pressure value that ensures the structural safety of the high-temperature water tank 402.

[0223] When the pressure in the high-temperature water tank 402 is detected to be higher than the reference pressure, the real-time temperature in the high-temperature water tank 402 is compared with the reference temperature range for judgment. When the temperature of the cooling water in the high-temperature water tank 402 is detected to be within the temperature range, the control valve between the high-temperature water tank 402 and the low-temperature water tank 401 is opened, allowing the high-temperature water in the high-temperature water tank 402 to flow into the low-temperature water tank 401, until all the high-temperature water flows out, at which point the control valve is closed.

[0224] Step 39: When the high temperature pressure is higher than the preset reference pressure and the high temperature value exceeds the reference temperature range, control the high temperature water tank 402 to connect to the input port of the pump body 1.

[0225] When the pressure in the high-temperature water chamber 402 is detected to be higher than the reference pressure, the real-time temperature in the high-temperature water chamber 402 is compared with the reference temperature range for judgment. When the temperature of the cooling water in the high-temperature water chamber 402 is detected to be greater than the temperature range, the control valve between the high-temperature water chamber 402 and the input port of the pump body 1 is opened, so that the high-temperature water in the high-temperature water chamber 402 flows into the low-temperature water chamber 401.

[0226] The steps before correcting the water level in step 35 based on the secondary water level correction amount and after increasing the fan speed include:

[0227] Step 351: Obtain the rate of change of humidity per unit time.

[0228] Humidity change rate refers to the rate of change of humidity in the cooling chamber 4220 per unit time.

[0229] The sensor continuously collects the real-time humidity value of the cooling chamber 4220 and calculates the humidity difference at different times to obtain the humidity change rate.

[0230] Step 352: Determine the water absorption efficiency of sponge 424 based on the humidity change rate.

[0231] Water absorption efficiency refers to the rate at which sponge 424 absorbs water vapor per unit time.

[0232] The water absorption efficiency of sponge 424 is determined by recording the humidity change rate in real time and analyzing the difference in these rates. A high humidity change rate indicates high water absorption efficiency, while a low humidity change rate indicates low efficiency. The humidity change rate is directly proportional to the water absorption efficiency of sponge 424.

[0233] Step 353: When the water absorption efficiency is less than the preset baseline efficiency, obtain the sponge state 424.

[0234] The preset baseline efficiency refers to the minimum rate at which Sponge 424 adsorbs water vapor per unit time when it is in a water-replenishing state under real-time temperature and humidity conditions.

[0235] When the water absorption efficiency of sponge 424 is less than the minimum water absorption rate of sponge 424 in the water replenishment state, it means that sponge 424 is close to or in a saturated state, and the state of sponge 424 at this time is obtained.

[0236] Step 354: When the state of sponge 424 is consistent with the saturated state, control the real-time moisture content to drop to the preset initial state.

[0237] The preset initial state refers to the initial moisture content state of Sponge 424 when it has not absorbed water vapor, that is, the state when the moisture content is 0.

[0238] When it is confirmed that the sponge 424 is in a water-retaining state, the water squeezing device installed in the cover cylinder 422 squeezes out all the water in the sponge 424 until the water content of the sponge 424 is zero, and then resets it.

[0239] The water squeezing device clamps the sponge 424 by sliding left and right inside the cover cylinder 422, and squeezes the sponge 424 by rolling up and down, squeezing out the water from the sponge 424. The squeezing time is a pre-set fixed time, and the time required to squeeze out all the water is determined by repeated squeezing practice.

[0240] Step 355: Correct the amount of condensation on the prism 423 according to the fan speed 421 to obtain the corrected amount of condensation.

[0241] The corrected condensation amount refers to the actual condensation amount obtained after considering the influence of the fan speed 421 on the condensation effect of the prism 423. This result is affected by the ambient humidity and temperature and is obtained from experiments, so it will not be elaborated on here.

[0242] Step 356: Determine the corrected recovery water volume based on the corrected condensate volume and the rated water content.

[0243] Corrected recovery water volume refers to the actual recovery water volume recalculated by combining the corrected condensation amount with the rated water content of Sponge 424.

[0244] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An energy-saving water supply device, comprising a pump body (1), a motor (2) for driving the pump body (1) to perform centrifugal motion, and a frame (3) supporting the pump body (1) and the motor (2), characterized in that, It also includes a water-saving device (4) installed on the rack (3) for collecting and reusing leaked water. The water-saving device (4) includes a water collection mechanism (40) installed on the frame (3) for storing leaked water, a guide mechanism (41) installed between the motor (2) and the pump body (1) for guiding leaked water into the water collection mechanism (40), and a cooling mechanism (42) installed at the tail of the motor (2) for taking water from the water collection mechanism (40) and cooling the motor (2).

2. The energy-saving water supply equipment according to claim 1, characterized in that, The guiding mechanism (41) includes an end cover (410) disposed on the pump body (1) near the motor (2) to prevent leakage of water, a sealing ring (411) disposed between the end cover (410) and the output shaft of the motor (2), a brush (412) disposed on the output shaft of the motor (2) and rotating with the motor (2), and a guiding pipe (413) communicating with the water collection mechanism (40). The bottom of the end cover (410) is provided with a guide hole (4100) for the leakage water to be concentrated and guided to the water collection mechanism (40). The end cover (410) has a guide groove (4101) inside to guide the leakage water into the guide hole (4100). The brush (412) is axially rotatably arranged and located inside the end cover (410) near the motor (2).

3. The energy-saving water supply equipment according to claim 2, characterized in that, The guide tube (413) is provided with a connection structure (5) for enhancing the sealing performance. The connection structure (5) includes a sleeve (50) for connecting the end of the guide tube (413), a collar (51) sliding on the outside of the sleeve (50), a fixing bead (52) movably embedded in the wall thickness of the sleeve (50), and a rubber ring (53) sliding on the inner wall of the sleeve (50). The inner wall of the rubber ring (53) has a rubber ring (530) for sealing the guide tubes (413) at both ends. A control block (531) is provided on the outer wall of the rubber ring (53). An embedding groove (510) for the control block (531) to be embedded is provided on the inner wall of the collar (51). A control groove (500) for the control block (531) to pass through and slide and a sliding groove for the rubber ring (53) to slide are provided on the sleeve (50). The outer side of the guide tube (413) is fitted with a locking cylinder (54) for locking and fixing the sleeve (50). The end of the locking cylinder (54) protrudes outward with a retaining ring (540), and the retaining ring (540) has an inclined guide surface (5400) that is limited to one end of the sliding groove. The locking cylinder (54) is provided with a fixing groove (541) for pressing the fixing bead (52).

4. The energy-saving water supply equipment according to claim 2, characterized in that, The cooling mechanism (42) includes a sprayer (420) that connects to the water collection mechanism (40) and sprays water atomized towards the tail of the motor (2), a fan (421) that blows water mist toward the motor (2) between the sprayer (420) and the motor (2), a cover (422) that covers the fan (421) at the tail of the motor (2) and forms a cooling chamber (4220), a prism (423) that is set in the cooling chamber (4220), and a sponge (424) that is set at the tail of the motor (2) to prevent water mist from directly contacting the motor (2). A recovery structure (425) for recovering cooling water is provided between the cover (422) and the water collection mechanism (40). The recovery structure (425) includes a recovery hole (4250) opened at the bottom of the cover (422) and a recovery pipe (4251) connecting the recovery hole (4250) and the water collection mechanism (40). A filter (4252) is provided on the recovery pipe (4251).

5. The energy-saving water supply equipment according to claim 4, characterized in that, The water collection mechanism (40) includes a water collection tank (400) mounted on the frame (3), and the water collection tank (400) has a low-temperature water chamber (401) and a high-temperature water chamber (402). The low-temperature water tank (401) is connected to the guide pipe (413) and the sprayer (420) and is used to collect leaked water; the high-temperature water tank (402) is connected to the recovery pipe (4251) and is used to recover the cooling water of the cooling mechanism (42). A thermal insulation layer (403) is provided between the low-temperature water tank (401) and the high-temperature water tank (402).

6. A method for controlling energy-saving water supply, comprising using an energy-saving water supply device as described in claim 5, characterized in that, include: Step 1: Obtain the input and output flow rates of the centrifugal pump; Step 2: The leakage amount can be obtained based on the input flow rate, output flow rate, and preset leakage time; Step 3: When the leakage exceeds the preset reference water level, the cooling mechanism (42) is controlled to cool the motor (2) using a preset cooling method, and the water level of the collection tank (400) is obtained in real time. Step 4: When the water level in the storage tank is higher than the preset overflow level, control the water collection tank (400) to connect to the inlet of the pump body (1) until the water level in the storage tank is not higher than the reference water level, and then control the water collection tank (400) to disconnect from the pump body (1).

7. The energy-saving water supply control method according to claim 6, characterized in that, In step 3, the preset cooling method includes: Step 31: Obtain real-time temperature and humidity information inside the cover (422); Step 32: When the real-time temperature information is higher than the preset reference temperature information, control the sprayer (420) to start and blow water mist to the motor (2) at the preset fan (421) speed until the real-time temperature information is lower than the reference temperature information, and record the number of times the sprayer (420) is started. Step 33: Determine the total consumption based on the number of times the sprayer (420) is started and the preset rated spray volume, and determine the water level correction amount based on the total consumption; Step 34: When the real-time humidity information is higher than the preset reference humidity information, control the fan (421) speed to increase, and obtain the amount of water recovered. Based on the amount of water recovered, correct the water level correction amount to obtain the secondary water level correction amount. Step 35: Adjust the water level in the storage tank according to the secondary water level correction amount to control the water level in the collection tank (400) at the reference operating water level.

8. The energy-saving water supply control method according to claim 7, characterized in that, In step 34, the method for detecting the amount of recycled water includes: Step 341: Obtain the specifications of the prism mesh (423), the specifications of the sponge (424), and the real-time total weight of the sponge (424) after absorbing water; Step 342: Determine the condensation amount based on the specifications of the prism mesh (423) and the rated spray volume; Step 343: Determine the condensation efficiency based on the specifications of the sponge (424), real-time temperature information, and real-time humidity information, and determine the real-time moisture content based on the specifications of the sponge (424) and the real-time total weight. Step 344: Determine the state of the sponge (424) based on the preset rated moisture content and real-time moisture content. The state of the sponge (424) includes the saturated state and the replenished state. Step 345: Determine the water volume of sponge (424) based on the state and condensation efficiency of sponge (424). The water volume of sponge (424) includes saturated water volume and replenished water volume. Step 346: Determine the amount of water to be recycled based on the amount of water in the sponge (424) and the amount of condensation; Step 347: When the amount of water recovered is not less than the preset baseline amount of water recovered, control the cooling mechanism (42) to connect with the high temperature water tank (402).

9. The energy-saving water supply control method according to claim 8, characterized in that, In step 347, after the cooling mechanism (42) is connected to the water collection tank (400), the following is also included: Step 36: Obtain the high temperature value and high pressure of the high temperature water tank (402) and the low temperature value of the low temperature water tank (401); Step 37: Determine the reference temperature range based on the low temperature value; Step 38: When the high temperature pressure is higher than the preset reference pressure and the high temperature value is within the reference temperature range, control the high temperature water tank (402) to connect to the low temperature water tank (401). Step 39: When the high temperature pressure is higher than the preset reference pressure and the high temperature value exceeds the reference temperature range, control the high temperature water tank (402) to connect to the input port of the pump body (1).

10. The energy-saving water supply control method according to claim 7, characterized in that, In step 35, before correcting the water level based on the secondary water level correction amount, and after increasing the fan speed (421), the following steps are included: Step 351: Obtain the rate of change of humidity per unit time; Step 352: Determine the water absorption efficiency of the sponge (424) based on the humidity change rate; Step 353: When the water absorption efficiency is less than the preset baseline efficiency, obtain the state of the sponge (424); Step 354: When the state of the sponge (424) is consistent with the saturated state, control the real-time moisture content to drop to the preset initial state; Step 355: Correct the amount of condensation on the prism (423) according to the fan (421) speed to obtain the corrected amount of condensation; Step 356: Determine the corrected recovery water volume based on the corrected condensate volume and the rated water content.

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