Energy-saving water pump

Abstract

The invention provides an energy-saving water pump and relates to the technical field of water pumps. The energy-saving water pump comprises a water pump main machine and further comprises a water outlet heat dissipation mechanism connected with a water outlet of the water pump main machine through a water outlet connecting flange. The water outlet heat dissipation mechanism comprises a water outlet pipe and a rear shell fixed to the rear portion of the water pump main machine. Spiral heat dissipation holes are formed in the rear shell, and a filter screen is fixed to the rear end of the rear shell. The technology has the biggest advantage that water pressure of the water pump is completely utilized to drive air cooling and water cooling dual heat dissipation, and zero extra energy consumption is achieved. The divided water flow firstly drives the water wheel to generate air cooling and then enters the spiral hole channel to achieve water cooling, finally cooling water is recycled, and an energy-saving closed loop is formed. The whole device is compact in structure and adjustable in heat dissipation strength, the rear shell can be quickly disassembled and is convenient to maintain, and the use cost is greatly reduced while the heat dissipation efficiency and the operation reliability are improved.

Description

Technical Field

[0001] This invention relates to the field of water pump technology, specifically to an energy-saving water pump. Background Technology

[0002] A water pump is a mechanical device used to transport liquids or increase their pressure. It uses mechanical energy to move liquids from a lower to a higher level, or from one location to another. It is widely used in agricultural irrigation, industrial water supply, building drainage, sewage treatment, and domestic water supply. Based on their working principle, water pumps can be classified into several types, including centrifugal pumps, positive displacement pumps, and axial flow pumps. Centrifugal pumps use a rotating impeller to generate centrifugal force to propel the liquid, while positive displacement pumps change the volume of the pump chamber to achieve liquid intake and discharge. The performance of a water pump is typically measured by parameters such as flow rate, head, power, and efficiency; the selection depends on the specific application requirements.

[0003] Currently, common methods for cooling the rear of water pumps mainly rely on dual-shaft motors or additional independent motors to drive the cooling fan. This design has significant drawbacks: using a dual-shaft motor would distribute the power to the main shaft, affecting the core efficiency of the water pump; using an additional motor would consume extra electricity, increasing energy costs and failing to meet energy conservation and environmental protection requirements. Furthermore, existing cooling solutions generally only use a single air-cooling mode, resulting in limited cooling efficiency and a lack of diversified thermal management methods. This makes it difficult to cope with the cooling needs under high loads or complex operating conditions, and the overall cooling performance is relatively limited. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an energy-saving water pump that solves the problems of insufficient energy efficiency and environmental friendliness, as well as low heat dissipation efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving water pump, comprising a pump main unit, and further comprising: The water outlet cooling mechanism is connected to the water outlet of the water pump host via a water outlet connection flange; The water outlet heat dissipation mechanism includes a water outlet pipe and a rear outer casing fixed to the rear of the water pump main unit; The rear outer casing has spiral heat dissipation holes inside, and a filter screen is fixed at the rear end of the rear outer casing; The control box is located inside the rear housing, and the water outlet of the control box is connected to the inlet of the spiral heat dissipation hole through a connecting pipe. A rotating rod rotatably passes through the control box. The portion of the rotating rod inside the control box is fixedly fitted with a water wheel, and the portion of the rotating rod inside the rear housing is fixedly fitted with a heat dissipation impeller located in front of the filter screen.

[0006] Preferably, the water pump host is connected to a water inlet pipe at its inlet, and the water pump host is equipped with a controller for controlling its operation.

[0007] Preferably, the outlet pipe is provided with a first connector and a second connector; the first connector is configured as a one-way structure that only allows fluid to flow into the outlet pipe, and the second connector is configured as a one-way structure that only allows fluid to flow out of the outlet pipe.

[0008] Preferably, the rear housing and the water pump main unit are connected by threads to form a detachable sealed connection.

[0009] Preferably, the water inlet of the control box is connected to the second connector on the water outlet pipe via a branch pipe.

[0010] Preferably, the branch pipe is equipped with a control valve for controlling the flow path opening and closing.

[0011] Preferably, the outlet of the spiral heat dissipation hole is connected to a drain pipe, and the outlet of the drain pipe is connected to a first connector on the water outlet pipe.

[0012] This invention provides an energy-saving water pump. It has the following beneficial effects: This invention provides an energy-saving water pump. The advantage of this technology lies in utilizing the kinetic energy of the water flow generated by the pump itself to drive a composite heat dissipation structure, eliminating the need for any additional motor or power source and achieving truly zero-additional energy consumption for heat dissipation. Specifically, a portion of the high-pressure water flow diverted from the main outlet pipe is guided to the control box to impact the water impeller, converting its hydraulic energy into mechanical energy. This mechanical energy is then directly driven by a rotating rod to rotate the rear heat dissipation impeller at high speed, generating forced convection airflow for efficient air cooling of the pump unit. The water flow after completing its driving function is not wasted but guided into carefully designed spiral heat dissipation channels inside the rear casing. As the water flows through these long, spiraling channels, it fully absorbs and carries away heat from the equipment, achieving active water cooling of critical areas. Finally, this cooling water is recycled back to the main outlet pipe, completing a closed-loop resource utilization. The intensity of the entire heat dissipation process can be flexibly adjusted via valves on the branch pipes, achieving on-demand heat dissipation. This integrated design organically combines air cooling and water cooling, surpassing the cooling efficiency of a single mode. Its modular structure, connected by threads, facilitates quick disassembly for filter cleaning and maintenance, improving reliability. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the present invention; Figure 2 This is a rear view diagram of the present invention; Figure 3 This is a front view schematic diagram of the water outlet heat dissipation mechanism of the present invention; Figure 4 This is a rear view schematic diagram of the water outlet heat dissipation mechanism of the present invention; Figure 5 This is a cross-sectional view of the rear outer casing of the present invention.

[0014] The components include: 1. Water pump main unit; 2. Inlet pipe; 3. Controller; 4. Outlet cooling mechanism; 41. Outlet pipe; 42. First connector; 43. Second connector; 44. Rear casing; 45. Drain pipe; 46. Control valve; 47. Control box; 48. Connecting pipe; 49. Spiral cooling holes; 410. Filter screen; 411. Cooling impeller; 412. Rotating rod; 413. Water wheel; 414. Branch pipe; and 5. Outlet connection flange. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1-5 As shown, an embodiment of the present invention provides an energy-saving water pump, including a water pump main unit 1, and further comprising: The water outlet heat dissipation mechanism 4 is connected to the water outlet of the water pump host 1 through the water outlet connection flange 5; The water outlet cooling mechanism 4 includes a water outlet pipe 41 and a rear housing 44 fixed to the rear of the water pump host 1; The rear outer casing 44 has a spiral heat dissipation hole 49 inside, and a filter screen 410 is fixed at the rear end of the rear outer casing 44. The control box 47 is located inside the rear housing 44, and the outlet of the control box 47 is connected to the inlet of the spiral heat dissipation hole 49 through the connecting pipe 48. A rotating rod 412 rotatably passes through a control box 47. The portion of the rotating rod 412 located inside the control box 47 is fixedly fitted with a water wheel 413, and the portion of the rotating rod 412 located inside the rear housing 44 is fixedly fitted with a heat dissipation impeller 411 located in front of the filter screen 410.

[0017] The water pump main unit 1 has an inlet pipe 2 connected to its inlet, and a controller 3 for controlling its operation is installed on the water pump main unit 1. The outlet pipe 41 has a first connector 42 and a second connector 43; the first connector 42 is configured to allow fluid to flow into the outlet pipe 41 in a one-way manner, and the second connector 43 is configured to allow fluid to flow out of the outlet pipe 41 in a one-way manner. The rear housing 44 is connected to the water pump main unit 1 by a threaded, detachable, sealed connection. The inlet of the control box 47 is connected to the second connector 43 on the outlet pipe 41 via a branch pipe 414. A control valve 46 for controlling the flow path is installed on the branch pipe 414. The outlet of the spiral heat dissipation hole 49 is connected to a drain pipe 45, and the outlet of the drain pipe 45 is connected to the first connector 42 on the outlet pipe 41.

[0018] When the water pump main unit 1 is powered on and starts running, its internal impeller rotates, generating pressure to draw liquid from the inlet pipe 2 and pump it out from the outlet. The pumped high-pressure main water flow enters the outlet pipe 41 of the water cooling mechanism 4, ready to be delivered to the target location. At the same time, part of the high-pressure water flow is discharged through a specially designed second connector 43 on the outlet pipe 41 and enters the connected branch pipe 414. This branch pipe 414 guides the water flow to the control box 47 located inside the rear housing 44 of the water pump. The water flow is sprayed at a certain speed and angle onto the blades of the water wheel 413 inside the control box 47, driving the water wheel 413 to rotate at high speed. The water wheel 413 is fixedly connected to a rotating rod 412, the other end of which extends into the cavity of the rear housing 44, where a cooling impeller 411 is also fixedly installed. Therefore, the rotational power of the water wheel 413 directly drives the cooling impeller 411 to rotate synchronously at high speed. The high-speed rotating cooling impeller 411 generates a strong axial airflow, which forces its way through the filter screen 410 at the rear of the rear housing 44. After filtering the outside air, this airflow continuously blows onto the heat-generating components such as the motor housing at the rear of the water pump unit 1, achieving efficient air cooling. The significant advantage of this process is that the energy driving the air cooling comes entirely from the excess water pressure generated by the pump itself, eliminating the need for an additional motor or drive shaft. This fundamentally eliminates additional energy consumption and achieves low-cost power recovery and utilization.

[0019] The water flow after completing the work done by the driving turbine 413 is not wasted, but flows out naturally from the outlet at the bottom of the control box 47. This water flow is then guided through the connecting pipe 48 to the inlet of the spiral heat dissipation hole 49 inside the metal wall of the rear housing 44. The spiral heat dissipation hole 49 meanders through the main structure of the rear housing 44, and its channels are close to the key areas of the water pump host 1 that need heat dissipation. During the process of flowing through the long spiral channel, the water flow undergoes sufficient heat exchange with the metal wall of the housing, continuously absorbing and carrying away a large amount of heat conducted from the water pump host 1 to the rear housing 44. After being cooled by the spiral channel, the water temperature has increased significantly, becoming cooling water carrying waste heat. This water flow is finally discharged from the outlet at the end of the spiral heat dissipation hole 49 and enters the drain pipe 45. The outlet of drain pipe 45 is connected to the first connector 42 on the outlet pipe 41, allowing the cooling water that has completed its heat dissipation task to be reinjected into the main outlet pipe 41, mixed with the main water flow in the main pipeline, and transported together to the destination. The core advantage of this design is that it creates a closed active water cooling cycle, recycling the cooled water as a cooling medium. This not only significantly improves the heat dissipation efficiency for the core heat source but also achieves internal water resource circulation, eliminating the need for an external cooling water source and directly removing waste heat from the equipment body. It is important to note that the water drawn in must be filtered to avoid clogging.

[0020] The activation and intensity of the entire heat dissipation system can be flexibly adjusted according to actual operating conditions. A control valve 46 is installed on the branch pipe 414. By operating this valve, the flow rate of water diverted from the main outlet pipe 41 to the control box 47 can be precisely controlled. When the water pump is operating under low load and generating less heat, the valve can be partially or completely closed to reduce or stop the operation of the air-cooled and water-cooled heat dissipation systems, allowing the water pump to focus on its fluid delivery function. Under high load or high ambient temperature conditions, the valve is fully opened to maximize the diversion, thereby driving the cooling impeller 411 to operate at its highest speed. At the same time, the flow rate of the water cooling circulation also reaches its maximum, ensuring the strongest combined heat dissipation capacity. In addition, the first connector 42 and the second connector 43 on the outlet pipe 41 both have unidirectional flow function, ensuring that the water flows in a predetermined direction in the complex pipeline and preventing backflow from interfering with the normal operation of the system. The entire heat dissipation mechanism forms a compact whole through the threaded connection between the rear housing 44 and the water pump main unit 1, with a robust structure and good sealing performance. The key advantage of this integrated design is that it provides adjustable heat dissipation capabilities, allowing users to dissipate heat as needed based on actual requirements. This further optimizes energy utilization while ensuring effective heat dissipation. At the same time, the integrated structure facilitates installation and maintenance and ensures high reliability.

[0021] In summary, this technology forms a complete and self-sufficient energy utilization and thermal management structure in practice. While the main water flow of the pump completes its delivery task, a portion of its hydraulic energy is cleverly used to drive a composite cooling system. This system first utilizes this energy to achieve forced air cooling, initially reducing the equipment temperature; subsequently, the water flow, after performing its work, continues to serve as a cooling medium, deeply cooling the equipment through a built-in spiral water-cooling channel; finally, the cooling water is recycled back to the main water flow, completing a highly efficient energy utilization closed loop. No additional power input or independent cooling drive device is required throughout the entire process. Furthermore, when equipment maintenance or cleaning is required, the rear housing 44 can be easily removed from the pump unit 1 via a threaded connection, allowing for easy cleaning of dust accumulated on the filter screen 410, or inspection and cleaning of components such as the spiral cooling holes 49 and the internal cooling impeller 411. Therefore, the overall advantages of this solution are: minimizing the energy consumption of water pump operation and maintenance, greatly improving heat dissipation efficiency and reliability through the combination of air cooling and water cooling, and having a compact overall structure, flexible control, and simple maintenance. It is a highly integrated and energy-saving water pump cooling solution.

[0022] Working principle: The core technology of this technology is to achieve both air cooling and water cooling by setting up a water outlet heat dissipation mechanism 4, without the need for additional power. It is also easy to disassemble and use.

[0023] Specifically, in this technology, the water pump host 1 is the main structure. The motor and related equipment inside it are existing conventional technologies, so they are not shown in this technology. In this process, the controller 3 at the lower end of the water pump host 1 is used to control the water pump host 1 and has wiring. After the water pump host 1 is started, water is introduced through the water inlet pipe 2 installed on the water inlet of the water pump host 1. Water is discharged through the water outlet pipe 41 of the water outlet heat dissipation mechanism 4. The water outlet pipe 41 is connected to the water outlet of the water pump host 1 through the water outlet connection flange 5.

[0024] During the pumping process, the outlet pipe 41 is equipped with a first connector 42 and a second connector 43, and both connections have valves to prevent water from flowing out when there is no connection. The first connector 42 is set to allow water to enter but not exit, and the second connector 43 is set to allow water to exit but not enter. Meanwhile, the branch pipe 414 is equipped with a control valve 46 to enable heat dissipation as needed. The rear of the water pump main unit 1 of this technology is connected and sealed by threads through the rear housing 44 of the water outlet heat dissipation mechanism 4. The rear housing 44 has spiral heat dissipation holes 49 inside to achieve water cooling. A filter screen 410 is fixed at the rear of the rear housing 44. A rotating rod 412 is rotatably set at the front end of the filter screen 410. The front end of the rotating rod 412 is rotatably connected to the control box 47 through a bearing. A water wheel 413 is fixedly sleeved on the rotating rod 412 inside the control box 47. A heat dissipation impeller 411 is fixedly sleeved on the rotating rod 412 near the filter screen 410.

[0025] As water flows through the outlet pipe 41, the branch pipe 414, connected by the second connector 43, passes through the rear outer casing 44 and guides the water into the control box 47. The water is sprayed onto the water wheel 413, which drives the rotating rod 412 to rotate. Simultaneously, the rotating rod 412 drives the cooling impeller 411 to rotate, achieving air cooling. The water in the control box 47 then flows through the connecting pipe 48 connected at its lower part into the spiral cooling hole 49, achieving water cooling. Finally, the water flows through the drain pipe 45 connected at the tail of the spiral cooling hole 49 and connects to the first connector 42, achieving water recirculation. This achieves simultaneous air cooling and water cooling without any power, making it more energy-efficient and environmentally friendly.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving water pump, comprising a pump main unit (1), characterized in that, Also includes: The water outlet heat dissipation mechanism (4) is connected to the outlet of the water pump host (1) via the water outlet connection flange (5); The water outlet heat dissipation mechanism (4) includes a water outlet pipe (41) and a rear outer shell (44) fixed to the rear of the water pump host (1). The rear outer shell (44) has a spiral heat dissipation hole (49) inside, and a filter screen (410) is fixed at the rear end of the rear outer shell (44). The control box (47) is located inside the rear housing (44), and the outlet of the control box (47) is connected to the inlet of the spiral heat dissipation hole (49) through the connecting pipe (48); A rotating rod (412) rotatably passes through the control box (47). The portion of the rotating rod (412) inside the control box (47) is fixedly fitted with a water wheel (413). The portion of the rotating rod (412) inside the rear housing (44) is fixedly fitted with a heat dissipation impeller (411) located in front of the filter screen (410).

2. The energy-saving water pump according to claim 1, characterized in that: The water pump host (1) is connected to a water inlet pipe (2), and the water pump host (1) is equipped with a controller (3) for controlling its operation.

3. The energy-saving water pump according to claim 1, characterized in that: The outlet pipe (41) is provided with a first connector (42) and a second connector (43); the first connector (42) is configured to allow fluid to flow into the outlet pipe (41) in a one-way structure, and the second connector (43) is configured to allow fluid to flow out of the outlet pipe (41) in a one-way structure.

4. The energy-saving water pump according to claim 1, characterized in that: The rear housing (44) and the water pump host (1) are connected by threads to form a detachable sealed connection.

5. An energy-saving water pump according to claim 3, characterized in that: The water inlet of the control box (47) is connected to the second connector (43) on the water outlet pipe (41) via a branch pipe (414).

6. An energy-saving water pump according to claim 5, characterized in that: The branch pipe (414) is equipped with a control valve (46) for controlling the flow path opening and closing.

7. An energy-saving water pump according to claim 5, characterized in that: The outlet of the spiral heat dissipation hole (49) is connected to a drain pipe (45), and the outlet of the drain pipe (45) is connected to the first connector (42) on the water outlet pipe (41).

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