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 particularly to an intelligent double-drive pump and a water supply system.

Background Art

[0002] Currently, water pumps are widely applied in people's daily lives and industrial production. A water pump generally includes a motor, a pump housing, and an impeller. The pump housing is provided with a water suction port and a water outlet. The impeller is installed in the pump housing and is driven by the motor to drive the flow of the water flow. The water pump in the prior art is limited by the power supply frequency of the motor and the driving method of the impeller, and has a short head and low water supply efficiency.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The technical problem to be solved by the present invention is how to design a technology to increase the head and improve the water supply efficiency.

Means for Solving the Problems

[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 according to 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, the motors are respectively arranged on both sides of the pump housing, the two motors are symmetrically arranged and are arranged to simultaneously rotationally drive the impeller, the controller is provided with a variable frequency module for adjusting the power frequency, and the variable frequency module is arranged to adjust the power frequency of the motor.

[0006] Furthermore, it further comprises a flow rate detection module, the flow rate detection module comprising a support frame, a detection pipeline, and a flow meter, wherein the support frame is installed on the pump housing, the detection pipeline is installed on the support frame and is suspended on the pump housing, the sensor of the flow meter is installed on the detection pipeline, and the controller is electrically connected to the flow meter.

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

[0008] Furthermore, a second guide plate is further installed on the detection pipeline, the second guide plate extends along the axis of the detection pipeline and is arranged on the water drainage side of the sensor.

[0009] Furthermore, an installation chamber is formed inside the detection pipeline, a water suction flow path and a water drainage flow path are formed in the detection pipeline, and the water suction flow path and the water drainage flow path communicate with the installation chamber respectively.

[0010] Furthermore, a pressure increasing chamber is formed within the pump housing. Water inlets are respectively installed on both sides of the pressure increasing chamber. A water suction pipe and a drain pipe are installed on the pump housing. The drain pipe communicates with the pressure increasing chamber, and the water suction pipe communicates with the water inlets. A rotatable main shaft is further installed on the pump housing. The main shaft penetrates through the pressure increasing chamber, and both ends of the main shaft extend outside the pump housing respectively.

[0011] The impeller is installed on the main shaft and is located within the pressure increasing chamber. The impeller is positioned between the two water inlets. Water suctioned from the water suction pipe is inhaled into the pressure increasing chamber through the water inlets and is arranged to be drained from the drain pipe.

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

[0013] Here, a first water suction flow path and a first water return path are installed on the pump housing. The first water suction flow path communicates with the pressure increasing chamber, and the first water return path communicates with the water suction pipe. The casing is provided with a second water suction passage and a second water return passage. A cooling passage is further provided at a first end of the casing. The cooling passage is connected between the second water suction passage and the second water return passage. The cooling passage is disposed outside the first bearing. The second water suction passage is connected to the first water suction 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 respectively disposed on both sides of the pump housing. 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 integral structure.

[0014] Furthermore, the casing 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 on 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. A sealing member is further provided on the first end cover. The sealing member hermetically covers the cooling water groove, and the cooling passage is formed between the sealing member and the cooling water groove.

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

[0016] Furthermore, the pump housing includes a first pump body and a second pump body. A water suction groove is installed in the first pump body, and first mounting notches are installed on both sides of the first pump body. The water suction groove communicates with the water suction pipe, and a protrusion structure is further installed in the water suction groove. The protrusion structure divides the water suction groove into two first water suction grooves, and each of the first water suction grooves communicates with the water suction pipe. A first arc-shaped groove is formed in the protrusion structure, and first water suction notches are further installed on both sides of the protrusion structure. The first arc-shaped groove communicates with the drain pipe.

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

[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 pressure increasing chamber. The second water suction notch on the side corresponding to the first water suction notch is connected to form the water suction port. The second water suction groove on the side corresponding to the first water suction groove is connected to form the water suction chamber. The water suction chamber communicates with the pressure increasing chamber through the water suction port. The first mounting notch is connected to the second mounting notch on the corresponding side to form a shaft hole. The main shaft penetrates through the water suction port and is dynamically sealed and connected to the shaft hole.

[0019] A guide member is installed in the water suction chamber. A through hole is installed in the guide member, and a guide surface is further installed on the guide member. The entire guide surface presents a conical surface and is arranged to guide the water flow in the water suction chamber to flow towards the water suction port direction.

[0020] Furthermore, a convex guide rib plate extending along the axial direction of the main shaft toward the water suction port is further installed on the guide surface. 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 suction chamber to flow toward the water suction port.

[0021] A branch flow path is further installed in the first water suction flow path, and a first auxiliary flow path 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 hole. The mechanical seal assembly includes 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 the part where the dynamic seal ring contacts the static seal ring forms a dynamic seal area. The mechanical seal cover is hermetically installed in the shaft hole. The main shaft penetrates 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 installed in the guide member. The branch flow path communicates with the first auxiliary flow path through the second auxiliary flow path, and the drainage 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 including a water supply pipe and the intelligent dual-drive pump connected to the water supply pipe.

Advantages of the Invention

[0025] Compared with the prior art, the advantages and positive effects of the present invention are as follows. That is, the intelligent dual-drive pump and water supply system according to the present invention arrange two motors in the pump housing and drive the two motors to simultaneously rotate the impeller on both sides of the impeller, thereby effectively increasing the impeller torque. At the same time, by driving the two motors to rotate the impeller synchronously, both ends of the impeller can receive force evenly and the rotation can be further balanced. Correspondingly, the variable frequency module changes the frequency of the power supply network to double the rotation speed of the motor. Furthermore, the impeller can achieve stable rotation under the drive of the high-speed motors on both sides, increasing the head of the intelligent dual-drive pump and improving the water supply efficiency of the intelligent dual-drive pump.

Brief Description of the Drawings

[0026] To more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings necessary for the description of 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 creative labor.

[0027]

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Embodiments for Carrying out the Invention

[0028] Preferred Embodiments of the Present Invention In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, hereinafter, with reference to the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Example 1 As shown in FIGS. 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 arranged on both sides of the pump housing. The two motors are used to simultaneously rotate and drive the impeller. A variable frequency module (not shown) for adjusting the power supply frequency is arranged in the controller, and the controller is electrically connected to the motor.

[0030] Specifically, in the intelligent dual-drive pump of this embodiment, two motors 300 are arranged to drive the impeller to rotate together with the two motors. In the actual use process, the controller can process the frequency of the power supply network through the variable frequency module. For example, corresponding to the frequency of 50 Hz / S of the national power grid, at this power supply frequency, the rotation speed of the motor is 50 Hz × 60 seconds = 3000 rotations. In order to improve the operating efficiency of the motor, the variable frequency module processes the power supply frequency to 100 Hz / S. At this time, the rotation speed of the motor is increased from 3000 rotations to 6000 rotations. By increasing the rotation speed of the motor in this way, the head and flow rate are improved.

[0031] Correspondingly, in order to ensure that the impeller can rotate smoothly in the pump housing due to the high-speed rotation operation of the motor, the two motors are arranged outside the pump housing, and the two motors drive the impeller to rotate from both sides simultaneously. In this way, both sides of the impeller can obtain the independent driving power of the motor and be driven. The rotation speeds provided by the two motors match each other. Furthermore, the impeller can operate stably in the pump housing, and the stability of the impeller during high-speed operation can be ensured.

[0032] Furthermore, the motor includes a casing 301, a stator 302, and a rotor 303. The stator and the rotor are installed in the casing, and the casing is fixedly installed on the pump housing.

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

[0034] Here, the method by which the motor drives the impeller to rotate may have multiple methods. For example, a rotating shaft is installed 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 the design of compactifying the structure of the entire device and reduce the influence of the two motors on the increase in the volume of the entire device, a rotatable main shaft 101 is installed on the pump housing. Both ends of the main shaft extend outside the pump housing respectively, extend into the casing, the impeller is installed on the main shaft, and the rotor is installed on the main shaft.

[0036] Specifically, the main shaft is arranged in the pump housing, and the requirements for mounting the rotor of the motor and the impeller are simultaneously satisfied by one main shaft. The rotor of the motor is symmetrically mounted at both end positions of the main shaft and drives the main shaft to rotate outside the pump housing. The impeller is mounted on the main shaft in the pump housing. In this way, by transmitting power through one main shaft, the two motors can be reliably rotated synchronously. On the other hand, the motor and the impeller share the main shaft, reducing the use of transmission members and making the structure of the entire device more compact.

[0037] Here, for the specific embodiment of the controller, a control module arranged in a normal intelligent motor can be adopted. The variable frequency module arranged in the controller can adopt an inverter arranged in a variable frequency motor. Also, the inverter can perform frequency adjustment in the range of 0 to 400 Hz according to the operation requirements of the motor.

[0038] In addition, in order to meet the requirement of remote monitoring, the controller is further provided with a wireless communication module (such as a 4G module or a 5G module, etc.) to further realize remote communication control. The controller is further provided with a display. A current transformer and a voltage transformer are installed in the motor. The current transformer and the voltage transformer are electrically connected to the controller respectively, and the current and voltage of the motor are further displayed by the display. In the actual use process, the water power of the water pump can be calculated according to the flow rate and head of the water pump, the power can be calculated according to the current and voltage, and the efficiency of the water pump can be further calculated. In this way, the controller can display the current and voltage of the motor, the flow rate of the water pump, and the efficiency of the water pump through the display.

[0039] Based on the above technical solution, selectively, as shown in FIGS. 1 and 4, the flow rate detection module includes a support frame 1, a detection pipeline 2, and a flow meter 3. The support frame is installed on the pump housing. The detection pipeline is installed on the support frame and suspended on the pump housing. The sensor 31 of the flow meter is installed on the detection pipeline and is electrically connected to the controller.

[0040] Specifically, a flow rate detection module 500 is integrally installed in the pump housing 100. The detection pipeline 2 in the flow rate detection module 500 is installed in the pump housing 100, and the sensor 31 of the flow meter 3 in the flow rate detection module 500 is arranged on the detection pipeline 2.

[0041] The entire detection pipeline 2 has a straight pipe structure. The flow path length and flow path diameter of the detection pipeline 2 meet the requirements of the straight pipe segment length required by national standards, that is, the length of the detection pipeline 2 is 5 times or more the water flow path diameter of the detection pipeline 2.

[0042] In the actual use process, water flow flows into the pump housing 100. The water flow in the pump housing 100 further flows into the detection pipeline 2. The sensor 31 passes through the water flow flowing in the detection pipeline 2, and the flow rate is further detected by the flow meter 3.

[0043] To ensure that the flow path length and flow path diameter of the detection pipeline 2 meet the requirements of the straight pipe segment length required by national standards, the flow velocity distribution of the water flow in the detection pipeline 2 becomes uniform, and the detection accuracy of the sensor 31 is improved.

[0044] Moreover, for the entire detection pipeline 2, its overall length is small, meeting the installation requirements of the flow meter 3 to meet the condition of a small length. Thus, the detection pipeline 2 can be directly formed in the pump housing 100 without adding piping outside the pump housing 100 to form a straight pipe segment.

[0045] Furthermore, as shown in FIG. 4, a first guide plate 21 is further installed in the detection pipeline 2, which extends along the axis of the detection pipeline 2 and is arranged on the water absorption side of the sensor 31.

[0046] Specifically, by arranging the first guide plate 21 in the detection pipeline 2, the first guide plate 21 can better guide the water flow flowing into the detection pipeline 2. The first guide plate extends and is arranged along the axial direction of the detection pipeline 2, so that the water flow can flow faster and more smoothly in the detection pipeline 2. Furthermore, the flow velocity of the water flow in the detection pipeline 2 can be balanced better. In addition, a second guide plate 22 is further installed in the detection pipeline 2, which extends along the axis of the detection pipeline 2 and is arranged on the drainage side of the sensor 31. Specifically, a second guide plate 22 similar to that on the drainage side of the sensor 31 in the detection pipeline 2 is arranged to guide the smooth derivation of the water flow in the detection pipeline 2, and further more effectively ensure that the flow velocity of the water flow in the detection pipeline 2 reaches uniformity.

[0047] Similarly, as shown in FIG. 5, an installation chamber 23 is formed inside the detection pipeline 2. An intake water channel 24 and a drainage channel 25 are formed in the detection pipeline 2, and the intake water channel 24 and the drainage channel 25 communicate with the installation chamber 23 respectively.

[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, the installation chamber 23 can be formed at the middle part of the detection pipeline to install the sensor 31. On both sides of the installation chamber 23, an intake water channel 24 and a drainage channel 25 with a diameter smaller than that of the installation chamber 23 can be installed. The intake water channel 24 and the drainage channel 25 meet the requirements for the length of the straight pipe segment during the detection of the flow meter 3. At the same time, the pipe diameters of the intake water channel 24 and the drainage channel 25 are small, and the overall length of the detection pipeline 2 can be more effectively shortened.

[0049] Furthermore, along the flow direction of the water flow in the pump housing 100, the outer dimension of the detection pipeline 2 gradually increases from the intake water channel 24 to the installation chamber 23, and gradually decreases from the installation chamber 23 to the drainage channel 25.

[0050] Specifically, since the detection pipeline 2 is suspended and installed in the pump housing 100 via the support frame 1, in order to reduce the detection pipeline 2 from imposing a large water resistance on the water flow in the pump housing 100, both the water suction end and the water discharge end of the detection pipeline 2 are installed in a tapered structure, which serves to guide the water flow and realizes reducing the water resistance generated in the water flow.

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

[0052] Here, the flow rate detection module can be attached to the water suction port or the water discharge port of the pump housing as required.

[0053] The present invention further provides a water supply system including a water supply pipe and the 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 the water supply system according to the present invention arrange two motors in the pump housing and simultaneously drive the impeller to rotate on both sides of the impeller by the two motors, thereby effectively increasing the impeller torque. At the same time, by driving the two motors to rotate the impeller synchronously, both ends of the impeller can receive force evenly and the rotation can be further balanced. Correspondingly, the variable frequency module changes the frequency of the power supply network to double the rotation speed of the motor. Furthermore, the impeller can achieve stable rotation under the drive of the high-speed motors on both sides, increasing the lift of the intelligent dual-drive pump and improving the water supply efficiency of the intelligent dual-drive pump.

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

[0056] A pressure increasing chamber 1001 is formed in the pump housing 100. Water suction ports 1002 are respectively installed on both sides of the pressure increasing chamber 1001. A water suction pipe 102 and a drain pipe 103 are installed in the pump housing 100. The drain pipe 103 communicates with the pressure increasing chamber 1001, and the water suction pipe 102 communicates with the water suction port 1002. A rotatable main shaft 101 is further installed in the pump housing 100. The main shaft 101 penetrates through the pressure increasing chamber 1001, and both ends of the main shaft 101 extend outside the pump housing 100 respectively.

[0057] An impeller 200, which is installed on the main shaft 101 and located in the pressure increasing chamber 1001. The impeller 200 is further located between the two water suction ports 1002, and is arranged such that the water sucked from the water suction pipe 102 is inhaled into the pressure increasing chamber 1001 through the water suction port 1002 and drained from the drain pipe 103.

[0058] Two motors 300, wherein each motor 300 includes a casing 301, a stator 302, and a rotor 303. A first bearing 304 is installed at the first end of the casing 301, and a second bearing 305 is installed at the 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 on the first bearing 304 and the second bearing 305. The rotor 303 is installed on the main shaft 101.

[0059] Here, a first water suction passage 1003 and a first water return passage 1004 are installed in the pump housing 100. The first water suction passage 1003 communicates with the pressure increasing chamber 1001, and the first water return passage 1004 communicates with the water suction pipe 102. A second water suction passage 307 and a second water return passage 308 are installed in the casing 301. A cooling passage 306 is further installed at the first end of the casing 301. The cooling passage 306 is connected between the second water suction passage 307 and the second water return passage 308. The cooling passage 306 is disposed outside the first bearing 304. The second water suction passage 307 is connected to the first water suction passage 1003, and the second water return passage 308 is connected to the first water return passage 1004.

[0060] Specifically, in the assembly process, the impellers 200 and the two rotors 303 are installed on the main shaft 101 on the pump housing 100. The end of the main shaft 101 is inserted into the corresponding side casing 301 and is supported and mounted via the first bearing 304 and the second bearing 305. The motors 300 mounted on both sides of the pump housing 100 can be driven synchronously to rotate the main shaft 101 so as to drive the impeller 200 in the pressure increasing chamber 1001 to rotate. Under the rotation action of the impeller 200, the water introduced into the water suction pipe 102 is sucked into the interior of the pressure increasing chamber 1001 through the water suction port 1002, and the water in the pressure increasing chamber 1001 is pressurized by the impeller 200 and drained from the drain pipe 103.

[0061] In the operation of the motor 300, the first bearing 304 and the second bearing 305 generate heat due to the rotation of the main shaft 101. Here, the second bearing 305 is adjacent to the pump housing 100, and the heat generated by the second bearing 305 is transmitted to the pump housing 100 through the second end of the casing 301 and is cooled by the water flowing in the pump housing 100.

[0062] Since the first bearing 304 is arranged away from the pump housing 100, in order to dissipate heat from the first bearing 304, a cooling flow path 306 is installed at the first end of the casing 301. The cooling flow path 306 forms a passage through which water flows and isolates the water from the first bearing 304. The water flowing through the cooling flow path 306 can absorb the amount of heat transferred by the first bearing 304, and since the first bearing 304 is isolated from the water, stable operation of the first bearing 304 can be ensured.

[0063] The water flowing through the cooling flow path 306 flows into the cooling flow path 306 from the first water suction flow path 1003 in the pressure increasing chamber 1001 through the second water suction flow path 307 of the casing 301. After the water in the cooling flow path 306 absorbs the heat of the first bearing 304, it flows into the pump housing 100 through the second water return path 308 and the first water return path 1004 and continues to be sucked into the pressure increasing chamber 1001.

[0064] By introducing water using the cooling flow path 306 to dissipate heat from the first bearing 304, the problem that the first bearing 304 at the outer end cannot effectively dissipate heat can be effectively solved, improving the operational reliability, meeting the high rotational speed operation requirements of the motor 300, and improving the water supply efficiency.

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

[0066] A through hole is installed in the second end cover 3013 and is fixedly connected to the pump housing 100.

[0067] Specifically, for the casing 301, the stator 302 is attached via the annular shell 3011. The first end cover 3012 and the second end cover 3013 are connected to both sides of the shell 3011 to form the casing 301. The first end cover 3012 is used to attach the first bearing 304, and the second end cover 3013 is used to attach the second bearing 305. To form the cooling flow path 306 in the first end cover 3012, a cooling water tank 3014 is opened in the first end cover 3012. The cooling water tank 3014 is formed on the outer surface of the first end cover 3012, and the seal member 3015 is used to cover the cooling water tank 3014 to realize the formation of the sealed cooling flow path 306.

[0068] Correspondingly, in order to form the second water absorption channel 307 and the second water return channel 308, the first channel 3016 and the second channel 3017 may be installed in the shell 3011. The third channel 3018 and the fourth channel 3019 are respectively installed in the first end cover 3012 and the second end cover 3013. The first channel 3016 communicates with the cooling channel 306 through the third channel 3018. The first channel 3016 and the third channel 3018 communicate with each other to form the second water absorption channel 307. The second channel 3017 and the fourth channel 3019 form the second water return channel 308.

[0069] Specifically, the first channel 3016 and the second channel 3017 may be formed in the shell 3011 by adopting apertures. Similarly, the third channel 3018 and the fourth channel 3019 are also processed by adopting apertures, whereby the processing difficulty can be reduced.

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

[0071] Specifically, in order to meet the heat dissipation requirement of the stator 302 in the motor 300, the annular channel 309 is formed in the shell 3011. The annular channel 309 can replenish and flow in cold water through the first channel 3016, and return the water flow after heat absorption in the annular channel 309 to the pump housing 100 through the second channel 3017. The annular channel 309 can be formed by opening a groove on the outer wall of the shell 3011 and then installing a seal cover outside the groove to seal the annular channel 309.

[0072] Since the water flow needs to flow into the cooling channel 306 and the annular channel 309 for heat dissipation, in order to avoid the generation of air resistance in the channels, an exhaust valve 310 may be installed on the casing 301. The exhaust valve 310 connects the second water suction channel 307 and the second water return channel 308. During use, by opening the exhaust valve 310, the air in the channels can be removed, and the cooled water flow will not be difficult to circulate due to air resistance, ensuring the reliability of cooling and heat dissipation.

[0073] In one embodiment of the present invention, the pump housing 100 includes a first pump body 104 and a second pump body 105. A water suction 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 suction groove communicates with the water suction pipe 102. A protrusion structure is further installed in the water suction groove. The protrusion structure spaces the water suction groove into two first water suction grooves 1041. The first water suction grooves 1041 communicate with the water suction pipe 102 respectively. A first arc-shaped groove 1044 is formed in the protrusion structure. First water suction notches 1043 are further installed on both sides of the protrusion structure. The first arc-shaped groove 1044 communicates with the drain pipe 103.

[0074] A second arc-shaped groove 1051 is formed in the second pump body 105. A second water suction notch 1052, a second water suction 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.

[0075] The second pump body 105 is installed on the first pump body 104. The first arcuate groove 1044 and the second arcuate groove 1051 are connected to form the pressure increasing chamber 1001. The second water suction notch 1052 on the side corresponding to the first water suction notch 1043 is connected to form the water suction port 1002. The second water suction groove 1053 on the side corresponding to the first water suction groove 1041 is connected to form the water suction chamber 1005. The water suction chamber 1005 communicates with the pressure increasing chamber 1001 through the water suction port 1002. The first mounting notch 1042 is connected to the second mounting notch 1054 on the corresponding side to form a shaft hole. The main shaft 101 passes through the water suction port 1002 and is dynamically sealed and connected to the shaft hole.

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

[0077] At the same time, in order to meet the requirement of uniform water suction of the two water suction ports 1002, the second water suction groove 1053 on the side corresponding to the first water suction groove 1041 is connected to form the water suction chamber 1005. Furthermore, water suction chambers 1005 are respectively installed on both sides of the pressure increasing chamber 1001 inside the pump housing 100 to meet the requirement of uniform water suction on both sides of the pressure increasing chamber 1001.

[0078] Here, the first water suction flow path 1003 is installed on the second pump body 105 and communicates with the second arcuate groove 1051. The first water return path 1004 is installed on the first pump body 104 and communicates with the first water suction groove 1041.

[0079] Furthermore, since the water inlets 1002 on both sides of the pressure increasing chamber 1001 need to suck water during use, the entire pressure increasing chamber 1001 is fitted into a water suction groove so as to form water suction chambers 1005 on both sides of the pressure increasing chamber 1001. In order to avoid the outer periphery of the water inlet 1002 being located within the water suction chamber 1005 and forming a vortex, which affects the water supply efficiency, a guide member 106 may be installed in the water suction chamber 1005. A through hole is installed in the guide member 106, and a guide surface 1061 is further installed in the guide member 106. The entire guide surface 1061 presents a conical surface and is arranged to guide the water flow in the water suction chamber 1005 to flow towards the water inlet 1002 direction.

[0080] Specifically, by adding a guide member 106 into the water suction chamber 1005, a through hole for penetrating the main shaft 101 is installed in the guide member 106, meeting the requirement of the free rotation of the main shaft 101. The guide surface 1061 formed on the guide member 106 is a conical surface, and the guide surface 1061 forms a taper towards the water inlet 1002 direction. The water flowing into the water suction chamber 1005 through the water suction pipe 102 flows into the suction port through the guidance of the guide surface 1061, and the water flow is inhaled into the pressure increasing chamber 1001 through a smoother suction port via the guide surface 1061.

[0081] Preferably, in order to more effectively solve the problem of vortex generation in the water suction chamber 1005, a protruding guide rib plate 1062 is further installed on the guide surface 1061. The guide rib plate 1062 extends along the axial direction of the main shaft 101 towards the water inlet 1002 direction. Arc-shaped surfaces are formed on both sides of the guide rib plate 1062, and the arc-shaped surfaces are arranged such that the water flow in the water suction chamber 1005 flows towards the water inlet 1002 direction.

[0082] Specifically, the guide rib plate 1062 protrudes from the guide surface 1061 and extends along the axial direction towards the water suction port 1002. When the water flowing into the water suction chamber 1005 flows around the water suction port 1002, the water is blocked by the guide rib plate 1062, avoiding the formation of a vortex flow around the water suction port 1002. Furthermore, the problem of vortex flow in the water suction chamber 1005 is more thoroughly solved, and finally, the water supply efficiency of the intelligent dual-drive pump is improved.

[0083] In addition, the arc-shaped surfaces formed on both sides of the guide rib plate 1062 further guide the blocked water flow to flow towards the water suction port 1002. The guide surface 1061 and the arc-shaped surfaces cooperate with each other so that the water suction port 1002 can smoothly and efficiently suck water.

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

[0085] Furthermore, a branch flow path 10031 is further installed in the first water suction flow path 1003, and a first auxiliary flow path 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. The mechanical seal assembly 107 includes a mechanical seal cover 1071, a static seal ring 1072, and a dynamic seal ring 1073. The static seal ring 1072 is installed on the mechanical seal cover 1071, and the part where the dynamic seal ring 1073 contacts the static seal ring 1072 forms a dynamic seal area 1074. The mechanical seal cover 1071 is seal-installed on the main shaft, the main shaft 101 penetrates 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. The branch flow path 10031 communicates with the first auxiliary flow path 1063 via the second auxiliary flow path 1064, and the drainage direction of the outlet of the second auxiliary flow path 1064 is toward the dynamic seal region 1074.

[0088] Specifically, the main shaft 101 is attached to the pump housing 100 via a mechanical seal assembly 107. The mechanical seal assembly 107 enables the main shaft 101 to penetrate the pump housing 100 and realizes a dynamic seal connection. Here, for the specific dynamic seal method of the mechanical seal assembly 107, the mechanical seal method in the prior art can be adopted, and the description is omitted here without limitation.

[0089] During the use process, the water replenished by the branch flow path 10031 flows into the first auxiliary flow path 1063 through the second auxiliary flow path 1064 in the guide member 106, and further dissipates heat from the mechanical seal assembly 107. More importantly, since the static seal ring 1072 and the dynamic seal ring 1073 rotate relative to each other, during the use process, sediment in the water accumulates in the dynamic seal region 1074, resulting in severe wear between the static seal ring 1072 and the dynamic seal ring 1073 and a reduction in the service life. The water flow drained by the second auxiliary flow path 1064 can clean the dynamic seal region 1074 formed between the dynamic seal ring 1073 and the static seal ring 1072, reducing the influence of elements such as sediment on the connection location between the dynamic seal ring 1073 and the static seal ring 1072. That is, it can satisfy heat dissipation while cleaning 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 explaining 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 each of the above embodiments or perform equivalent substitutions for some of their technical features. It should be understood that these modifications or substitutions do not deviate from the spirit and scope of the technical solutions of the corresponding technical solutions of the present invention in each embodiment.

Claims

1. An intelligent dual-drive pump, comprising: a pump housing, an impeller, a motor, and a controller, wherein the impeller is rotatably installed within the pump housing, the motors are respectively arranged on both sides of the pump housing, the two motors are symmetrically arranged and are arranged to simultaneously rotationally drive the impeller, a variable frequency module for adjusting the power frequency is arranged in the controller, and the variable frequency module is arranged to adjust the power frequency of the motor. An intelligent dual-drive pump characterized by the above.

2. The motor according to claim 1, comprising a casing, a stator, and a rotor, wherein the stator and the rotor are installed within the casing, and the casing is fixedly installed on the pump casing.

3. A rotatable main shaft is installed in the pump housing, both ends of the main shaft extend outside the pump housing respectively, extend into the casing, the impeller is installed on the main shaft, and the rotor is installed on the main shaft. The intelligent dual-drive pump according to claim 2, characterized by the above.

4. Further comprising a flow rate detection module, the flow rate detection module comprising a support frame, a detection pipeline, and a flow meter, the support frame is installed in the pump housing, the detection pipeline is installed on the support frame and is suspended in the pump housing, the sensor of the flow meter is installed in the detection pipeline, and the controller is electrically connected to the flow meter. The intelligent dual-drive pump according to claim 1, characterized by the above.

5. A first guide plate is further installed in the detection pipeline, the first guide plate extends along the axis of the detection pipeline and is arranged on the water suction side of the sensor. A second guide plate is further installed in the detection pipeline, the second guide plate extends along the axis of the detection pipeline and is arranged on the water discharge side of the sensor. The intelligent dual-drive pump according to claim 4, characterized by the above.

6. A pressure increasing chamber is formed within the pump housing, water inlets are respectively installed on both sides of the pressure increasing chamber, a water suction pipe and a drain pipe are installed on the pump housing, the drain pipe communicates with the pressure increasing chamber, and the water suction pipe communicates with the water inlets. A rotatable main shaft is further installed on the pump housing, the main shaft penetrates through the pressure increasing chamber, and both ends of the main shaft extend outside the pump housing respectively. The impeller is installed on the main shaft and is located within the pressure increasing chamber. The impeller is positioned between the two water inlets. Water sucked in from the water suction pipe is inhaled into the pressure increasing chamber through the water inlets and is arranged to drain through the drain pipe. The motor includes a casing, a stator, and a rotor. A first bearing is installed at the first end of the casing, a second bearing is installed at the second end of the casing, and a through hole is further installed at the second end of the casing. The second bearing is installed in the through hole. The stator is installed on the casing, and the rotor is rotatably installed on the casing. The second end of the casing is installed on the pump housing, the main shaft is inserted into the casing through the through hole, and is installed on the first bearing and the second bearing. Here, a first water suction flow path and a first water return path are installed on the pump housing. The first water suction flow path communicates with the pressure increasing chamber, and the first water return path communicates with the water suction pipe. A second water suction flow path and a second water return path are installed on the casing. A cooling flow path is further installed at the first end of the casing. The cooling flow path is connected between the second water suction flow path and the second water return path, the cooling flow path is arranged outside the first bearing, the second water suction flow path is connected to the first water suction flow path, and the second water return path is connected to the first water return path. Further, the pump housing and the impeller form a water pump, and the rotors of the two motors and the impeller of the water pump are fixedly connected to the main shaft. The motors are respectively 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 pump form a coaxial integral structure. The intelligent dual-drive pump according to claim 1, characterized in that.

7. The casing includes a shell, a first end cover, and a second end cover. The shell is installed between the first end cover and the second end cover. The stator is installed in the shell. The first bearing is installed on the first end cover. The second bearing is installed on the second end cover. A cooling water groove is installed on the outer surface of the first end cover. The cooling water groove is arranged outside the first bearing. A sealing member is further installed on the first end cover. The sealing member hermetically covers the cooling water groove. A cooling flow path is formed between the sealing member and the cooling water groove. Here, the second end cover is fixedly connected to the pump housing. The intelligent dual-drive pump according to claim 6.

8. The pump housing includes a first pump body and a second pump body. A water suction groove is installed in the first pump body. First mounting notches are installed on both sides of the first pump body. The water suction groove communicates with the water suction pipe. A protruding structure is further installed in the water suction groove. The protruding structure divides the water suction groove into two first water suction grooves. Each of the first water suction grooves communicates with the water suction pipe. A first arc-shaped groove is formed in the protruding structure. First water suction notches are further installed on both sides of the protruding structure. The first arc-shaped groove communicates with the drain pipe. A second arc-shaped groove is formed in the second pump body. A second water suction notch, a second water suction groove, and a second mounting notch are sequentially installed on both sides of the second arc-shaped groove of the second pump body. The second pump body is installed on the first pump body. The first arcuate groove and the second arcuate groove are connected to form the pressure increasing chamber. The second water suction notch corresponding to the side of the first water suction notch is connected to form the water suction port. The second water suction groove corresponding to the side of the first water suction groove is connected to form the water suction chamber. The water suction chamber communicates with the pressure increasing chamber through the water suction port. The first mounting notch is connected to the second mounting notch on the corresponding side to form a shaft hole. The main shaft penetrates through the water suction port and is dynamically sealed and connected to the shaft hole. A guide member is installed in the water suction chamber. The guide member is provided with a through hole and a guide surface. The entire guide surface presents a conical surface and is arranged to guide the water flow in the water suction chamber to flow towards the water suction port. The intelligent dual-drive pump according to claim 6 is characterized in that.

9. A convex guide rib plate extending towards the water suction port along the axial direction of the main shaft is further installed on the guide surface. Arc-shaped surfaces are formed on both sides of the guide rib plate. The arc-shaped surfaces are arranged to guide the water flow in the water suction chamber to flow towards the water suction port. A branch flow path is further installed in the first water suction flow path. A first auxiliary flow path is formed between the inner wall of the through hole and the outer wall of the main shaft. A mechanical seal assembly is installed in the shaft hole. The mechanical seal assembly includes a mechanical seal cover, a static seal ring, and a dynamic seal ring. The static seal ring is installed on the mechanical seal cover. The part where the dynamic seal ring and the static seal ring contact forms a dynamic seal area. The mechanical seal cover is installed in the shaft hole in a sealed manner. The main shaft penetrates through the mechanical seal assembly. The guide member is fixed to the mechanical seal. The dynamic seal ring is installed on the main shaft. A second auxiliary flow path is installed in the guide member. The branch flow path communicates with the first auxiliary flow path through the second auxiliary flow path. The drainage direction of the outlet of the second auxiliary flow path is towards the dynamic seal area. The intelligent dual-drive pump according to claim 8 is characterized in that.

10. A water supply system comprising a water supply pipe, The water supply system further comprising the intelligent dual drive pump according to any one of claims 1 to 9, which is connected to the water supply pipe.

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