Intelligent Dual Drive Pump and Water Supply System

Abstract

The present invention discloses an intelligent dual-drive pump and a water supply system. The intelligent dual-drive pump includes a pump housing, an impeller, a motor, and a controller. The impeller is rotatably disposed within the pump housing. The motors are respectively disposed on both sides of the pump housing, and the two motors are symmetrically arranged and are arranged to simultaneously drive the impeller to rotate. The controller includes a variable frequency module used for adjusting the power frequency, and the variable frequency module is arranged to adjust the power frequency of the motor. The rotor and the impeller are coaxially arranged, the motor and the water pump are integrated, increasing the lift of the intelligent dual-drive pump and improving the water supply efficiency of the intelligent dual-drive pump.

Description

[Technical Field]

[0001] The present invention relates to the technical field of motors, and in particular to intelligent double drive pumps and water supply systems. [Background technology]

[0002] Currently, water pumps are widely used in people's daily lives and industrial production. A water pump usually includes a motor, a pump housing, and an impeller. The pump housing is equipped with a water inlet and a water outlet, and the impeller is installed in the pump housing and rotated by the motor to realize the motive water flow. The water pumps in the prior art are limited by the motor's power supply frequency and the impeller's driving method, resulting in short head and low water supply efficiency. Summary of the Invention [Problem to be solved by the invention]

[0003] The technical problem that the present invention aims to solve is how to design a technology that increases the head and improves the water supply efficiency. [Means for solving the problem]

[0004] The technical problem to be solved by the present invention is to provide an intelligent double-drive pump and a water supply system that can increase the head of the intelligent double-drive pump and improve the water supply efficiency of the intelligent double-drive pump.

[0005] The technical solution of the present invention is as follows: an intelligent dual-drive pump, comprising a pump housing, an impeller, a motor, and a controller, wherein the impeller is rotatably installed in the pump housing, and the motors are respectively arranged on both sides of the pump housing, the two motors are arranged symmetrically and arranged to simultaneously rotate and drive the impellers, and the controller is arranged with a variable frequency module for adjusting the power supply frequency, and the variable frequency module is arranged to adjust the power supply frequency of the motors.

[0006] The pump further includes a flow detection module, the flow detection module including a support frame, a detection line, and a flow meter, the support frame being mounted on the pump housing, the detection line being mounted on the support frame and suspended from the pump housing, a sensor of the flow meter being mounted on the detection line, and the controller being electrically connected to the flow meter.

[0007] Furthermore, a first guide plate is further installed in the detection pipeline, and the first guide plate extends along the axis of the detection pipeline and is disposed on the water intake side of the sensor.

[0008] Furthermore, a second guide plate is further installed in the detection pipe, and the second guide plate extends along the axis of the detection pipe and is disposed on the drain side of the sensor.

[0009] Furthermore, an attachment chamber is formed inside the detection pipe line, and a water intake flow path and a water discharge flow path are formed in the detection pipe line, and the water intake flow path and the water discharge flow path are each connected to the attachment chamber.

[0010] A booster chamber is formed within the pump housing, and water inlets are provided on both sides of the booster chamber. A water suction pipe and a water discharge pipe are provided within the pump housing, the water discharge pipe communicating with the booster chamber and the water suction pipe communicating with the water inlet. A rotatable main shaft is further provided within the pump housing, and the main shaft passes through the booster chamber, with both ends of the main shaft extending outside the pump housing.

[0011] The impeller is mounted on the main shaft and is located within the booster chamber. The impeller is located between the two water intake ports and is arranged so that water sucked in from the water intake pipe is drawn into the booster chamber through the water intake port and discharged through the discharge pipe.

[0012] The motor includes a casing, a stator, and a rotor, a first bearing installed at a first end of the casing, a second bearing installed at a second end of the casing, a through hole further installed at the second end of the casing, the second bearing installed in the through hole, the stator installed in the casing, the rotor rotatably installed in the casing, the second end of the casing installed in the pump housing, the main shaft inserted into the casing through the through hole and installed in the first bearing and the second bearing, and the rotor installed on the main shaft.

[0013] wherein the pump housing is provided with a first water intake passage and a first water return passage, the first water intake passage communicating with the pressure boosting chamber, and the first water return passage communicating with the water intake pipe; a second water intake passage and a second water return passage are provided in the casing, a cooling passage is further provided at a first end of the casing, the cooling passage is connected between the second water intake passage and the second water return passage, the cooling passage is arranged outside the first bearing, the second water intake passage is connected to the first water intake passage, and the second water return passage is connected to the first water return passage. Further, the pump housing and the impeller form a water pump, the rotors of the two motors and the impeller of the water pump are fixedly connected to the main shaft, the motors are arranged on both sides of the pump housing, and the second ends of the casings of the two motors are fixed to the pump housing so that the motors and the water pumps form a coaxial integrated structure.

[0014] The casing further includes a shell, a first end cover, and a second end cover, the shell is disposed between the first end cover and the second end cover, the stator is disposed in the shell, the first bearing is disposed in the first end cover, and the second bearing is set in the second end cover. A cooling water groove is disposed on the outer surface of the first end cover, the cooling water groove is disposed outside the first bearing, and a seal member is further disposed in the first end cover, the seal member hermetically covers the cooling water groove, and the cooling flow path is formed between the seal member and the cooling water groove.

[0015] Here, the second end cover is fixedly connected to the pump housing.

[0016] Further, the pump housing comprises a first pump body and a second pump body, the first pump body has a water intake groove, first mounting notches are provided on both sides of the first pump body, the water intake groove is connected to the water intake pipe, the water intake groove is further provided with a protrusion structure, the protrusion structure divides the water intake groove into two first water intake grooves, each of the first water intake grooves is connected to the water intake pipe, the protrusion structure has a first arc-shaped groove, the protrusion structure has first water intake notches further provided on both sides of the protrusion structure, the first arc-shaped groove is connected to the drain pipe.

[0017] A second arc-shaped groove is formed in the second pump body, and a second water intake notch, a second water intake groove, and a second mounting notch are sequentially installed on both sides of the second arc-shaped groove of the second pump body.

[0018] The second pump body is installed on the first pump body, the first arc-shaped groove and the second arc-shaped groove are connected to form the booster chamber, the first water intake notch and the second water intake notch on the corresponding side are connected to form the water intake port, the first water intake groove and the second water intake groove on the corresponding side are connected to form a water intake chamber, and the water intake chamber communicates with the booster chamber via the water intake port. The first mounting notch is connected to the second mounting notch on the corresponding side to form a shaft hole, and the main shaft passes through the water intake port and is connected to the shaft hole with a dynamic seal.

[0019] A guide member is installed in the water intake chamber, and a through hole is formed in the guide member. A guide surface is further installed in the guide member, and the entire guide surface has a conical surface and is arranged to guide the water flow in the water intake chamber toward the water intake port.

[0020] Furthermore, a convex guide rib plate is further provided on the guide surface, extending toward the water intake port along the axial direction of the main shaft, and arc-shaped surfaces are formed on both sides of the guide rib plate, and the arc-shaped surfaces are arranged to guide the water flow in the water intake chamber toward the water intake port.

[0021] A branch passage is further provided in the first water intake passage, and a first auxiliary passage is formed between the inner wall of the through hole and the outer wall of the main shaft.

[0022] A mechanical seal assembly is installed in the shaft bore, the mechanical seal assembly including a mechanical seal cover, a static seal ring, and a dynamic seal ring, the static seal ring is installed in the mechanical seal cover, and the contact area between the static seal ring and the static seal ring forms a dynamic seal area. The mechanical seal cover is installed in the shaft bore in a sealing manner, the main shaft passes through the mechanical seal assembly, the guide member is fixed to the mechanical seal, and the dynamic seal ring is installed on the main shaft.

[0023] A second auxiliary flow path is provided in the guide member, and the branch flow path is connected to the first auxiliary flow path via the second auxiliary flow path, and the discharge direction of the outlet of the second auxiliary flow path is toward the dynamic seal area.

[0024] The present invention further provides a water supply system, comprising a water supply pipe and the above-mentioned intelligent dual-drive pump connected to the water supply pipe. [Effects of the Invention]

[0025] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the intelligent dual-drive pump and water supply system of the present invention has two motors arranged in the pump housing, and the two motors drive the impeller on both sides to rotate simultaneously, thereby effectively increasing the impeller torque; and the two motors drive the impeller to rotate synchronously, so that both ends of the impeller receive uniform force and the rotation is more balanced. Correspondingly, the variable frequency module changes the frequency of the power supply grid to double the motor rotation speed, and further, the impeller can be driven by the high-speed motors on both sides to achieve stable rotation, thereby increasing the head of the intelligent dual-drive pump and improving the water supply efficiency of the intelligent dual-drive pump. [Brief explanation of the drawings]

[0026] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces drawings necessary for describing the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

[0027] [Figure 1] 1 is a first structural schematic diagram of the intelligent dual-drive pump according to the first embodiment of the present invention; [Figure 2] FIG. 2 is a second structural schematic diagram of the intelligent dual-drive pump according to the first embodiment of the present invention. [Figure 3] 1 is a cross-sectional view of a first embodiment of an intelligent dual-drive pump according to the present invention. [Figure 4] FIG. 2 is a first cross-sectional view of the flow detection module of FIG. [Figure 5] FIG. 2 is a second cross-sectional view of the flow detection module of FIG. [Figure 6] 1 is a first structural schematic diagram of the intelligent dual-drive pump according to the second embodiment of the present invention; [Figure 7] 2 is a second structural schematic diagram of the intelligent dual-drive pump according to the second embodiment of the present invention; FIG. [Figure 8] FIG. 4 is a cross-sectional view of a second embodiment of the intelligent dual-drive pump according to the present invention. [Figure 9] FIG. 9 is a partially enlarged schematic view of region A in FIG. 8. [Figure 10] FIG. 7 is an assembly diagram of the main shaft, rotor, and impeller of FIG. 6. [Figure 11] FIG. 7 is a structural schematic diagram of the casing in FIG. 6. [Figure 12] FIG. 12 is an exploded view of the casing of FIG. 11. [Figure 13] FIG. 13 is a partially enlarged schematic view of region B in FIG. [Figure 14] FIG. 7 is a structural schematic diagram of a first pump body in FIG. 6. [Figure 15] FIG. 7 is a structural schematic diagram of a second pump body in FIG. 6. [Figure 16] FIG. 7 is a structural schematic diagram of a guide member in FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0028] Preferred Embodiments of the Invention In order to clarify the objectives, technical solutions and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative efforts fall within the protection scope of the present invention.

[0029] Example 1 As shown in Figures 1 to 3, the present invention provides an intelligent dual-drive pump including a pump housing 100, an impeller 200, a motor 300, and a controller 400. The impeller is rotatably installed in the pump housing, and the motors are respectively disposed on both sides of the pump housing, and the two motors are used to simultaneously rotate and drive the impellers. The controller is provided with a variable frequency module (not shown) for adjusting the power supply frequency, and the controller is electrically connected to the motors.

[0030] Specifically, the intelligent dual-drive pump of this embodiment is equipped with two motors 300, which together drive the impellers. In actual use, the controller can process the power grid frequency through a variable frequency module. For example, corresponding to the national power grid frequency of 50 Hz / s, the motor's rotation speed at this power frequency is 50 Hz x 60 s = 3000 rpm. To improve the operating efficiency of the motors, the variable frequency module processes the power grid frequency to 100 Hz / s, increasing the motor's rotation speed from 3000 rpm to 6000 rpm. Increasing the motor's rotation speed improves the head and flow rate.

[0031] To address this, in order to ensure that the impeller can rotate smoothly in the pump housing when the motor is operated at a high rotational speed, two motors are arranged outside the pump housing, and the two motors simultaneously drive the impeller to rotate from both sides. This allows both sides of the impeller to be driven by the independent power provided by the motors, and the rotational speeds provided by the two motors are matched to each other. Furthermore, the impeller can operate stably in the pump housing, ensuring the stability of the impeller during high-speed operation.

[0032] Furthermore, the motor comprises a casing 301, a stator 302 and a rotor 303, the stator and the rotor being mounted in the casing, and the casing being fixed to the pump housing.

[0033] Specifically, the motor is fixedly attached to the pump housing via the casing, and the specific connection method may be to fasten the casing to the pump housing using bolts. The motors on both sides of the pump housing are symmetrically arranged to drive the impeller to rotate more smoothly.

[0034] Here, the method by which the motor drives the impeller to rotate may include a plurality of methods, for example, a rotating shaft is provided on the impeller, the impeller is rotatably attached to the pump housing via the rotating shaft, and the motor shaft of the motor is drivingly connected to the rotating shaft.

[0035] Preferably, in order to realize a compact design of the overall structure of the device and reduce the impact of the two motors on increasing the volume of the entire device, a rotatable main shaft 101 is installed in the pump housing, and both ends of the main shaft extend outside the pump housing and into the casing, respectively, and the impeller is installed on the main shaft and the rotor is installed on the main shaft.

[0036] Specifically, the main shaft is disposed in the pump housing, and the single main shaft simultaneously meets the mounting requirements of the rotor and the impeller of the motor. The rotors of the motor are symmetrically mounted at both ends of the main shaft and drive the main shaft to rotate outside the pump housing. The impeller is mounted on the main shaft inside the pump housing. In this way, by transmitting power via the single main shaft, the two motors can reliably rotate synchronously. Meanwhile, the motors and the impellers share the main shaft, which reduces the use of transmission components and makes the overall structure of the device more compact.

[0037] Here, the specific embodiment of the controller can be a control module installed in a conventional intelligent motor, and the variable frequency module installed in the controller can be an inverter installed in a variable frequency motor, and the inverter can adjust the frequency in the range of 0 to 400 Hz according to the operation requirements of the motor.

[0038] In addition, to meet the requirements of remote monitoring, the controller further includes a wireless communication module (e.g., a 4G module or a 5G module) to further realize remote communication control. The controller further includes a display. The motor is equipped with a current transformer and a voltage transformer, which are electrically connected to the controller, and the display displays the current and voltage of the motor. During actual use, the water pump's hydraulic power can be calculated based on the water pump's flow head, and the power can be calculated based on the current and voltage, and the water pump's efficiency can also be calculated. In this way, the controller can display the motor's current and voltage, the water pump's flow rate, and the water pump's efficiency on the display.

[0039] Based on the above technical solutions, optionally: Figure 2As shown in FIG. 4, the flow detection module comprises a support frame 1, a detection line 2, and a flow meter 3, the support frame is mounted on the pump housing, the detection line is mounted on the support frame and suspended from the pump housing, and a sensor 31 of the flow meter is mounted on the detection line and electrically connected to the controller.

[0040] Specifically, the flow detection module 500 is integrally attached within the pump housing 100, the detection line 2 in the flow detection module 500 is installed within the pump housing 100, and the sensor 31 of the flow meter 3 in the flow detection module 500 is arranged in the detection line 2.

[0041] The entire detection pipeline 2 has a straight pipe structure, and the flow path length and flow path diameter of the detection pipeline 2 satisfy the straight pipe segment length requirements required by the national standard, i.e., the length of the detection pipeline 2 is at least five times the water flow path diameter of the detection pipeline 2.

[0042] During actual use, water flows into the pump housing 100, and the water flow in the pump housing 100 further flows into the detection line 2, passes through the sensor 31 against the water flow in the detection line 2, and the flow rate is further detected by the flow meter 3.

[0043] Since the flow path length and flow path diameter of the detection pipeline 2 meet the requirements for the length of a straight pipe segment required by national standards, the flow velocity distribution of the water flow within the detection pipeline 2 becomes uniform, improving the detection accuracy of the sensor 31.

[0044] Furthermore, the entire detection conduit 2 has a short overall length, which satisfies the installation requirements of the flowmeter 3. This allows the detection conduit 2 to be formed directly within the pump housing 100 without adding piping to the outside of the pump housing 100 to form a straight pipe segment.

[0045] Furthermore, as shown in FIG. 4, the detection pipeline 2 is further provided with a first guide plate 21 that extends along the axis of the detection pipeline 2 and is disposed on the water intake side of the sensor 31.

[0046] Specifically, by disposing a first guide plate 21 in the detection pipe 2, the first guide plate 21 can better guide the water flowing into the detection pipe 2, and the first guide plate is disposed extending along the axial direction of the detection pipe 2, thereby allowing the water flow to flow faster and more smoothly in the detection pipe 2 and further achieving a better balance of the flow rate of the water flow in the detection pipe 2. In addition, a second guide plate 22 is further disposed in the detection pipe 2, extending along the axis of the detection pipe 2 and disposed on the discharge side of the sensor 31. Specifically, the second guide plate 22 is disposed in the detection pipe 2 similar to the one on the discharge side of the sensor 31, which guides the water flow to be smoothly discharged in the detection pipe 2 and further effectively ensures that the flow rate of the water flow in the detection pipe 2 reaches uniformity.

[0047] Similarly, as shown in Figure 5, an attachment chamber 23 is formed inside the detection pipeline 2, and a water intake flow path 24 and a water drainage flow path 25 are formed in the detection pipeline 2, and the water intake flow path 24 and the water drainage flow path 25 are each connected to the attachment chamber 23.

[0048] Specifically, in order to more effectively reduce the overall length of the detection pipeline 2 and meet the installation requirements of the sensor 31, an installation chamber 23 can be formed at an intermediate position in the detection pipeline to install the sensor 31, and a water intake channel 24 and a water discharge channel 25, each with a diameter smaller than that of the installation chamber 23, can be installed on both sides of the installation chamber 23. The water intake channel 24 and the water discharge channel 25 meet the requirements for the length of the straight pipe segment during detection by the flowmeter 3, and at the same time, the pipe diameters of the water intake channel 24 and the water discharge channel 25 are small, so that the overall length of the detection pipeline 2 can be more effectively shortened.

[0049] Furthermore, along the direction of water flow within the pump housing 100 , the external dimensions of the detection conduit 2 gradually increase from the water intake passage 24 toward the mounting chamber 23 and gradually decrease from the mounting chamber 23 toward the water discharge passage 25 .

[0050] Specifically, since the detection conduit 2 is suspended within the pump housing 100 via the support frame 1, in order to reduce the large water resistance that the detection conduit 2 imposes on the water flow within the pump housing 100, both the intake end and the discharge end of the detection conduit 2 are installed in a tapered structure, which serves to guide the water flow and reduce the water resistance generated in the water flow.

[0051] In some embodiments, to facilitate connection of the sensor 31, a wiring passage (not shown) is provided in the support frame 1, and the cable between the controller and the sensor 31 is placed in the wiring passage.

[0052] Here, the flow rate detection module can be attached to the water inlet or outlet of the pump housing as needed.

[0053] The present invention further provides a water supply system, comprising a water supply pipe and the above-mentioned intelligent dual-drive pump connected to the water supply pipe.

[0054] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the intelligent dual-drive pump and water supply system of the present invention has two motors arranged in the pump housing, and the two motors simultaneously drive the impeller on both sides to rotate, thereby effectively increasing the impeller torque; and the two motors drive the impeller synchronously to rotate, so that both ends of the impeller receive uniform force and the rotation is more balanced. Correspondingly, the variable frequency module changes the frequency of the power supply grid to double the motor rotation speed, and further, the impeller can achieve stable rotation by being driven by the high-speed motors on both sides, thereby increasing the head of the intelligent dual-drive pump and improving the water supply efficiency of the intelligent dual-drive pump.

[0055] Example 2 As shown in Figures 6 to 16, based on the above Example 1, the present application provides an intelligent dual-drive pump including a pump housing 100, an impeller 200, a motor 300, and a controller, wherein a variable frequency module for adjusting a power supply frequency is arranged in the controller, and the variable frequency module is arranged to adjust the power supply frequency of the motor.

[0056] A booster chamber 1001 is formed within the pump housing 100, and water inlets 1002 are provided on both sides of the booster chamber 1001. A water suction pipe 102 and a water discharge pipe 103 are provided in the pump housing 100, and the water discharge pipe 103 communicates with the booster chamber 1001, and the water suction pipe 102 communicates with the water suction port 1002. A rotatable main shaft 101 is further provided in the pump housing 100, and the main shaft 101 passes through the booster chamber 1001, and both ends of the main shaft 101 extend outside the pump housing 100.

[0057] An impeller 200 is installed on the main shaft 101 and located within the booster chamber 1001, and the impeller 200 is further located between the two water intake ports 1002 and is arranged so that water sucked from the water intake pipe 102 is drawn into the booster chamber 1001 through the water intake port 1002 and discharged from the discharge pipe 103.

[0058] The two motors 300 each include a casing 301, a stator 302, and a rotor 303. A first bearing 304 is installed at a first end of the casing 301, a second bearing 305 is installed at a second end of the casing 301, a through hole is further installed at the second end of the casing 301, and the second bearing 305 is installed in the through hole. The stator 302 is installed in the casing 301, and the rotor 303 is rotatably installed in the casing 301. The second end of the casing 301 is installed in the pump housing 100, and the main shaft 101 is inserted into the casing 301 through the through hole and installed in the first bearing 304 and the second bearing 305. 、 The rotor 303 is mounted on the main shaft 101 .

[0059] Here, a first water intake passage 1003 and a first water return passage 1004 are provided in the pump housing 100, the first water intake passage 1003 is connected to the pressure booster chamber 1001, and the first water return passage 1004 is connected to the water intake pipe 102. A second water intake passage 307 and a second water return passage 308 are provided in the casing 301, and a cooling passage 306 is further provided at a first end of the casing 301, the cooling passage 306 being connected between the second water intake passage 307 and the second water return passage 308, the cooling passage 306 being arranged outside the first bearing 304, the second water intake passage 307 being connected to the first water intake passage 1003, and the second water return passage 308 being connected to the first water return passage 1004.

[0060] Specifically, during the assembly process, the impeller 200 and the two rotors 303 are installed on the main shaft 101 on the pump housing 100, and one end of the main shaft 101 is inserted into the corresponding casing 301, with the main shaft 101 supported and attached via a first bearing 304 and a second bearing 305. The motors 300 attached to both sides of the pump housing 100 synchronously drive the main shaft 101 to rotate, thereby driving the impeller 200 in the booster chamber 1001 to rotate. Under the rotation of the impeller 200, water introduced into the suction pipe 102 is sucked into the booster chamber 1001 through the suction port 1002, and the water in the booster chamber 1001 is pressurized by the impeller 200 and discharged through the discharge pipe 103.

[0061] During operation of the motor 300, the first bearing 304 and the second bearing 305 generate heat as the main shaft 101 rotates. Here, the second bearing 305 is adjacent to the pump housing 100, and the heat generated in the second bearing 305 is transferred to the pump housing 100 via the second end of the casing 301, and is cooled by the water flowing inside the pump housing 100.

[0062] Since the first bearing 304 is disposed away from the pump housing 100, a cooling channel 306 is installed at the first end of the casing 301 to dissipate heat and cool the first bearing 304. The cooling channel 306 forms a passage through which water flows and isolates the water from the first bearing 304. The water flowing through the cooling channel 306 can absorb the heat transferred by the first bearing 304, and the first bearing 304 is isolated from the water, ensuring stable operation of the first bearing 304.

[0063] The water flowing through the cooling passage 306 flows from the first water intake passage 1003 in the booster chamber 1001 into the second water intake passage 307 of the casing 301 and then into the cooling passage 306. After absorbing the heat of the first bearing 304, the water in the cooling passage 306 flows into the pump housing 100 via the second water return passage 308 and the first water return passage 1004 and continues to be sucked into the booster chamber 1001.

[0064] By using the cooling channel 306 to introduce water to the first bearing 304 to dissipate heat, the problem of the outer first bearing 304 being unable to effectively dissipate heat can be effectively solved, the reliability of use can be improved, the high rotational speed operating requirements of the motor 300 can be met, and the water supply efficiency can be improved.

[0065] The casing 301 further includes a shell 3011, a first end cover 3012, and a second end cover 3013. The shell 3011 is disposed between the first end cover 3012 and the second end cover 3013. The stator 302 is disposed in the shell 3011, the first bearing 304 is disposed in the first end cover 3012, and the second bearing 305 is disposed in the second end cover 3013. A cooling water tank 3014 is disposed on the outer surface of the first end cover 3012, and the cooling water tank 3014 is disposed outside the first bearing 304. A seal member 3015 is further disposed in the first end cover 3012, and the seal member 3015 hermetically covers the cooling water tank 3014. 、 The cooling flow path 306 is formed between the sealing member 3015 and the cooling water tank 3014 .

[0066] The second end cover 3013 is provided with a through hole and is fixedly connected to the pump housing 100 .

[0067] Specifically, casing 301 has stator 302 attached via annular shell 3011, and first end cover 3012 and second end cover 3013 connected to either side of shell 3011 to form casing 301, with first end cover 3012 used to attach first bearing 304 and second end cover 3013 used to attach second bearing 305. In order to form cooling flow path 306 in first end cover 3012, cooling water tank 3014 is opened in first end cover 3012 and formed on the outer surface of first end cover 3012, and cooling water tank 3014 is further covered with sealing member 3015 to form a sealed cooling flow path 306.

[0068] Correspondingly, a first flow path 3016 and a second flow path 3017 may be installed in the shell 3011 to form a second water intake flow path 307 and a second water return path 308, and a third flow path 3018 and a fourth flow path 3019 are installed in the first end cover 3012 and the second end cover 3013, respectively, and the first flow path 3016 is connected to the cooling flow path 306 via the third flow path 3018, and the first flow path 3016 and the third flow path 3018 are connected to form the second water intake flow path 307, and the second flow path 3017 and the fourth flow path 3019 form the second water return path 308.

[0069] Specifically, the first flow path 3016 and the second flow path 3017 may be formed in the shell 3011 using apertures, and similarly, the third flow path 3018 and the fourth flow path 3019 are also processed to use apertures, thereby reducing the difficulty of processing.

[0070] Furthermore, an annular passage 309 is formed in the shell 3011 , the annular passage 309 is disposed around the stator 302 , and the first passage 3016 and the second passage 3017 communicate with the annular passage 309 .

[0071] Specifically, to meet the heat dissipation requirements of the stator 302 of the motor 300, an annular passage 309 is formed in the shell 3011. Cold water is supplied to the annular passage 309 through a first passage 3016, and the water flowing after absorbing heat in the annular passage 309 can be returned to the pump housing 100 through a second passage 3017. The annular passage 309 can be formed by opening a groove in the outer wall of the shell 3011 and then installing a sealing cover outside the groove to form a sealed annular passage 309.

[0072] Since the water flow needs to flow into the cooling channel 306 and the annular channel 309 to dissipate heat, an exhaust valve 310 may be installed on the casing 301 to avoid air resistance occurring within the channel. The exhaust valve 310 connects the second water intake channel 307 and the second water return channel 308. During use, the exhaust valve 310 can be opened to remove air from within the channel, preventing the cooled water flow from being hindered from circulating due to air resistance and ensuring the reliability of cooling and heat dissipation.

[0073] In one embodiment of the present invention, the pump housing 100 comprises a first pump body 104 and a second pump body 105, a water intake groove is installed in the first pump body 104, first mounting notches 1042 are installed on both sides of the first pump body 104, the water intake groove is connected to the water intake pipe 102, a protrusion structure is further installed in the water intake groove, the protrusion structure spaces the water intake groove to divide it into two first water intake grooves 1041, the first water intake grooves 1041 are respectively connected to the water intake pipe 102, a first arc-shaped groove 1044 is formed in the protrusion structure, first water intake notches 1043 are further installed on both sides of the protrusion structure, and the first arc-shaped groove 1044 is connected to the drain pipe 103.

[0074] A second arc-shaped groove 1051 is formed in the second pump body 105, and a second water intake notch 1052, a second water intake groove 1053, and a second mounting notch 1054 are sequentially installed on both sides of the second arc-shaped groove 1051 in the second pump body 105, respectively.

[0075] The second pump body 105 is installed on the first pump body 104, the first arc-shaped groove 1044 and the second arc-shaped groove 1051 are connected to form the booster chamber 1001, the first water intake notch 1043 and the corresponding second water intake notch 1052 are connected to form the water intake port 1002, and the first water intake groove 1041 and the corresponding second water intake groove 1053 are connected to form the water intake chamber 1005, which communicates with the booster chamber 1001 via the water intake port 1002. The first mounting notch 1042 is connected to the corresponding second mounting notch 1054 to form a shaft hole, and the main shaft 101 passes through the water intake port 1002 and is dynamically sealed to the shaft hole.

[0076] Specifically, the pump housing 100 adopts an upper and lower split structure to facilitate the installation of the impeller 200. Correspondingly, after the first pump body 104 and the second pump body 105 are connected, the first arc-shaped groove 1044 and the second arc-shaped groove 1051 are connected to form the booster chamber 1001, and the impeller 200 is positioned in the first arc-shaped groove 1044 and the second arc-shaped groove 1051. At the same time, the water intake areas on both sides of the impeller 200 are positioned opposite the water intake ports 1002 on the corresponding sides.

[0077] At the same time, in order to meet the requirement of equal water intake of the two water intake ports 1002, the first water intake groove 1041 and the second water intake groove 1053 on the corresponding side are connected to form a water intake chamber 1005, and further, water intake chambers 1005 are installed on both sides of the booster chamber 1001 inside the pump housing 100, respectively, to meet the requirement of equal water intake on both sides of the booster chamber 1001.

[0078] Here, the first water intake passage 1003 is installed in the second pump body 105 and communicates with the second arc-shaped groove 1051, and the first water return passage 1004 is installed in the first pump body 104 and communicates with the first water intake groove 1041.

[0079] Furthermore, since the water inlets 1002 on both sides of the booster chamber 1001 need to absorb water during use, the entire booster chamber 1001 is fitted into the water intake groove to form water intake chambers 1005 on both sides of the booster chamber 1001. To prevent the outer periphery of the water intake ports 1002 from being located within the water intake chamber 1005 and forming vortices that would affect water supply efficiency, the water intake chamber 1005 may be provided with a guide member 106, which has a through hole and is further provided with a guide surface 1061, the entire guide surface 1061 having a conical shape and arranged to guide the water flow in the water intake chamber 1005 toward the water inlets 1002.

[0080] Specifically, by adding a guide member 106 inside the water intake chamber 1005, a through hole is formed in the guide member 106 for passing the main shaft 101 therethrough, thereby satisfying the requirement for free rotation of the main shaft 101. A guide surface 1061 formed on the guide member 106 is a conical surface, and the guide surface 1061 tapers toward the water intake port 1002. Water flowing into the water intake chamber 1005 through the water intake pipe 102 flows into the intake port via the guide of the guide surface 1061, and the water flow is then sucked into the booster chamber 1001 via the intake port, where it flows more smoothly.

[0081] Preferably, in order to more effectively prevent vortex flow from occurring in the water intake chamber 1005, a protruding guide rib plate 1062 is further installed on the guide surface 1061, and the guide rib plate 1062 extends toward the water intake port 1002 along the axial direction of the main shaft 101, and arc-shaped surfaces are formed on both sides of the guide rib plate 1062, and the arc-shaped surfaces are arranged to direct the water flow in the water intake chamber 1005 toward the water intake port 1002.

[0082] Specifically, the guide rib plate 1062 protrudes from the guide surface 1061 and extends axially toward the water inlet 1002. When the water flows into the water intake chamber 1005 and flows around the water intake 1002, the water is blocked by the guide rib plate 1062, preventing the water flow from forming a vortex around the water intake 1002. This further solves the vortex problem in the water intake chamber 1005 and ultimately improves the water supply efficiency of the intelligent dual-drive pump.

[0083] In addition, the arc-shaped surfaces formed on both sides of the guide rib plate 1062 further guide the blocked water flow to the water intake 1002, and the guide surfaces 1061 and the arc-shaped surfaces work together to enable the water intake 1002 to absorb water smoothly and efficiently.

[0084] In order to better prevent the guide rib plate 1062 from blocking the water flow and forming vortexes, a connecting rib 1055 may be further installed in the second water intake groove 1053, and the guide rib plate 1062 is connected to the connecting rib 1055 on the corresponding side.

[0085] Furthermore, a branch channel 10031 is further provided in the first water intake channel 1003 , and a first auxiliary channel 1063 is formed between the inner wall of the through-hole and the outer wall of the main shaft 101 .

[0086] A mechanical seal assembly 107 is installed in the shaft hole, and the mechanical seal assembly 107 includes a mechanical seal cover 1071 and Static Seal Ring 1072 and Dynamic Seal Ring 1073, Static Seal Ring 1072 is installed on the mechanical seal cover 1071, Dynamic Seal Ring 1073 and the above Static Seal Ring The contact area between the mechanical seal cover 1071 and the mechanical seal assembly 1072 forms a dynamic seal area 1074. The mechanical seal cover 1071 is sealingly installed on the main shaft, the main shaft 101 passes through the mechanical seal assembly 107, the guide member 106 is fixed to the mechanical seal, and the Dynamic Seal Ring 1073 is installed on the main shaft 101.

[0087] A second auxiliary flow path 1064 is installed in the guide member 106, and the branch flow path 10031 is connected to the first auxiliary flow path 1063 via the second auxiliary flow path 1064, and the discharge direction of the outlet of the second auxiliary flow path 1064 is toward the dynamic seal area 1074.

[0088] Specifically, the main shaft 101 is attached to the pump housing 100 via a mechanical seal assembly 107, which allows the main shaft 101 to penetrate the pump housing 100 and establish a dynamic seal connection. The specific dynamic seal method of the mechanical seal assembly 107 can be any mechanical seal method in the prior art, and will not be described here without limitation.

[0089] In use, the water supplied by the branch passage 10031 flows into the first auxiliary passage 1063 through the second auxiliary passage 1064 in the guide member 106, further dissipating heat and cooling the mechanical seal assembly 107. More importantly, the static seal ring 1072 and Dynamic Seal Ring 1073 rotates relative to the dynamic seal area 1074 during use. Static Seal Ring 1072 and Dynamic Seal Ring The water flow discharged by the second auxiliary flow path 1064 is Dynamic Seal Ring 1073 and Static Seal Ring The dynamic seal area 1074 formed between the nozzle 1072 and the nozzle 1074 can be cleaned. Dynamic Seal Ring 1073 and Static Seal Ring This reduces the influence of elements such as sediment on the connection point with 1072, i.e., it is possible to satisfy the cooling and heat dissipation requirements and also to clean the sediment, thereby extending the service life of the mechanical seal assembly 107.

[0090] Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features thereof, and these modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. 1. An intelligent dual drive pump, comprising: A water pump comprising a pump housing and an impeller, the pump housing defines a booster chamber having water inlets on both sides thereof, the pump housing further includes a water intake pipe and a water discharge pipe, the water discharge pipe communicating with the booster chamber and the water intake pipe communicating with the water inlets, the pump housing further includes a rotatable main shaft passing through the booster chamber, both ends of the main shaft extending outside the pump housing, The impeller is disposed in the booster chamber and is located between the two water inlets, and is configured to draw water from the water inlets through the water suction pipe into the booster chamber and discharge water from the discharge pipe. Water pump and two motors, each motor comprising a casing, a stator, and a rotor, the casing having a first end with a first bearing and a second end with a second bearing and a through hole, the second bearing being disposed in the through hole of the second end, the stator being disposed within the casing, the rotor being rotatably disposed within the casing, and the main shaft being inserted into the casing via the through hole of the second end and disposed on the first bearing and the second bearing; a controller comprising a variable frequency module for adjusting the power supply frequency of the motor; It is equipped with the pump housing includes a first water intake passage and a first water return passage, the first water intake passage communicating with the booster chamber and the first water return passage communicating with the water intake pipe; the casing includes a second water intake passage and a second water return passage, the first end of the casing further includes a cooling passage, the cooling passage is connected to the second water intake passage and the second water return passage and is disposed outside the first bearing, the second water intake passage is connected to the first water intake passage, and the second water return passage is connected to the first water return passage; the rotors of the two motors and the impeller of the water pump are fixedly connected to a main shaft, the motors are disposed on both sides of the pump housing, and the second ends of the casings of the two motors are fixed to the pump housing, so that the motors and the water pump form a coaxial, integrated structure; the pump housing comprises a first pump body and a second pump body, the first pump body has a water intake groove, first mounting notches are arranged on both sides of the first pump body, the water intake groove is connected to the water intake pipe, the water intake groove further has a protrusion structure, the protrusion structure divides the water intake groove into two first water intake grooves connected to the water intake pipe, the protrusion structure has a first arc-shaped groove, and first water intake notches are further arranged on both sides of the protrusion structure; The second pump body has a second arc-shaped groove formed therein, and the second pump body has a second water intake notch, a second water intake groove, and a second mounting notch on both sides of the second arc-shaped groove, respectively, in this order; the second pump body is installed on the first pump body, the first arc-shaped groove and the second arc-shaped groove are connected to form the booster chamber, the first water intake notch and the second water intake notch on the corresponding side are connected to form the water intake port, the first water intake groove and the second water intake groove on the corresponding side are connected to form a water intake chamber communicating with the booster chamber via the water intake port, the first mounting notch is connected to the second mounting notch on the corresponding side to form a shaft hole, the main shaft passes through the water intake port and is dynamically and sealingly connected to the shaft hole, the water intake chamber is provided with a guide member having a through hole and a guide surface, the guide surface having a conical surface configured to guide the water flow in the water intake chamber toward the water intake port, the guide surface further comprises a convex guide rib plate extending toward the water intake port along the axial direction of the main shaft, and arc-shaped surfaces are formed on both sides of the guide rib plate, and the arc-shaped surfaces are configured to guide the water flow in the water intake chamber toward the water intake port, the first water intake passage further includes a branch passage, and a first auxiliary passage is formed between an inner wall of the through hole of the guide member of the water intake chamber and an outer wall of the main shaft, The axial bore is provided with a mechanical seal assembly, the mechanical seal assembly including a mechanical seal cover, a static seal ring, and a dynamic seal ring, the static seal ring is installed on the mechanical seal cover, and a contact portion between the dynamic seal ring and the static seal ring forms a dynamic seal area, the mechanical seal cover is sealed in the axial bore, the main shaft passes through the mechanical seal assembly, the guide member is fixed to the mechanical seal assembly, and the dynamic seal ring is disposed on the main shaft, the guide member has a second auxiliary flow path, the branch flow path communicates with the first auxiliary flow path via the second auxiliary flow path, and the discharge direction of the outlet of the second auxiliary flow path is toward the dynamic seal area; The intelligent dual drive pump, characterized in that the water flow discharged from the second auxiliary flow path cleans a dynamic seal area formed between the dynamic seal ring and the static seal ring.

2. the casing includes a shell, the shell is disposed between a first end cover and a second end cover, the stator is disposed within the shell, the first bearing is disposed on the first end cover, and the second bearing is disposed on the second end cover; a cooling water groove is provided on an outer surface of the first end cover, the cooling water groove is disposed outside the first bearing, the first end cover further includes a seal member, the seal member seals and covers the cooling water groove, and the cooling flow path is formed between the seal member and the cooling water groove; 2. The intelligent dual drive pump of claim 1, wherein said second end cover is fixedly connected to said pump housing.

3. 3. The intelligent dual drive pump of claim 2, wherein the shell has a first flow path and a second flow path, the first end cover and the second end cover have a third flow path and a fourth flow path, respectively, the first flow path communicates with the cooling flow path via the third flow path, the first flow path and the third flow path communicate with each other to form a second water intake flow path, and the second flow path and the fourth flow path form the second water return path.

4. 4. The intelligent dual drive pump of claim 3, wherein the shell defines an annular passage disposed about the stator, and the first passage and the second passage communicate with the annular passage.

5. 2. The intelligent dual-drive pump of claim 1, wherein the first water intake passage is disposed in the second pump body and communicates with the second arc-shaped groove, and the first water return passage is disposed in the first pump body and communicates with the first water intake groove.

6. A water supply system comprising a water supply pipe and an intelligent dual drive pump according to any one of claims 1 to 5, The water supply system, wherein the intelligent dual drive pump is connected to the water supply pipe.

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