Submersible pump with spray cooling function

Abstract

The utility model belongs to submersible pump technical field especially relates to a submersible pump with spray cooling function. Including submersive pump body, the output of submersible pump body is connected with the liquid outlet pipe through check valve, and the spray pipe is communicated on the liquid outlet pipe, and the spray pipe extends to the top end of submersible pump body, and the top end of submersible body is welded with a plurality of screw rods, and the water distribution plate is bolted on the screw rod, and the first water immersion sensor is fixed on the outer wall of liquid outlet pipe, and the electromagnetic valve is installed on the spray pipe, and the water immersion sensor and electromagnetic valve electric connection, and the second water immersion sensor is fixed on the outer wall of submersible pump body liquid outlet end, and the second water immersion sensor and submersible body electric connection. The utility model can utilize the pump water function of submersible pump body itself to cool its body, prevents the temperature from being too high and damaging motor.

Description

Technical Field

[0001] This utility model belongs to the field of submersible pump technology, and in particular relates to a submersible pump with spray cooling function. Background Technology

[0002] A submersible pump is a water pumping device that converts electrical energy into mechanical energy. During operation, approximately 5-10% of the electrical energy is converted into heat energy. Furthermore, the pump casing is completely sealed off from the outside environment. Therefore, submersible pumps do not have a dedicated cooling system for the motor; they rely on the water surrounding the motor for cooling. As the water in the tank is gradually pumped out and the motor is exposed above the water, the motor loses its cooling effect, causing its temperature to rise rapidly. If effective cooling or pump shutdown is not implemented, this can eventually lead to motor overheating and damage. To ensure the motor remains at a stable low temperature during operation, if the remaining water is pumped out, a designated person must stop the pump promptly and allow it to return to normal temperature before restarting. This operating method not only affects the pump's efficiency but also increases the risk of motor overheating and damage. This is especially true for medium to large submersible pumps (55kW and above), where approximately 600mm or more of water may remain in the tank under normal circumstances, hindering post-pump dredging operations. In addition, submersible pumps installed in low-lying culverts during the rainy season may experience frequent water outages when the water level drops to a lower point. This water shortage can easily cause the submersible pump motor to overheat. If the lack of water for an extended period without timely cooling, it can easily lead to overheating damage. Summary of the Invention

[0003] The purpose of this invention is to provide a submersible pump with a spray cooling function to solve the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A submersible pump with a spray cooling function includes a submersible pump body. The output end of the submersible pump body is connected to an outlet pipe via a one-way valve. A spray pipe is connected to the outlet pipe and extends to the top of the submersible pump body. Several screws are welded to the top of the submersible pump body, and a water distribution plate is bolted to the screws. A first water immersion sensor is fixed on the outer wall of the outlet pipe. A solenoid valve is installed on the spray pipe, and the water immersion sensor is electrically connected to the solenoid valve. A second water immersion sensor is fixed on the outer wall of the outlet end of the submersible pump body and is electrically connected to the submersible pump body.

[0006] Furthermore, the outlet pipe is connected to the spray pipe near the one-way valve. The spray pipe is clamped to the submersible pump body by a clamp. The outlet end of the spray pipe faces downward and is located directly above the submersible pump body. A first square pipe is welded between the outer wall of the spray pipe and the outer wall of the outlet pipe.

[0007] Furthermore, the liquid outlet of the spray pipe should be at least 200mm away from the top of the submersible body.

[0008] Furthermore, the water distribution plate is located between the liquid outlet end of the spray pipe and the submersible body. The water distribution plate is in the shape of an upwardly convex spherical crown. The diameter of the water distribution plate is smaller than the outer diameter of the submersible body. Several water distribution holes are opened on the water distribution plate. At least four ear plates are welded in a ring array on the outer edge of the water distribution plate.

[0009] Furthermore, the number of screws corresponds to the number of lugs, the screws pass through the lugs, and nuts are threaded onto the screws on the upper and lower sides of the lugs.

[0010] Furthermore, the first water immersion sensor is installed inside the first square tube, and a second square tube is welded to the outer wall of the liquid outlet end of the submersible body, and the second water immersion sensor is fixed on the second square tube.

[0011] Furthermore, the solenoid valve is an underwater waterproof solenoid control valve.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model can utilize the pumping function of the submersible pump itself to cool down the pump body and prevent the motor from being damaged by excessive temperature.

[0014] 2. The first and second water immersion sensors control the solenoid valve and the submersible pump body respectively, thereby automatically activating the cooling function and the automatic shutdown function, requiring no manual supervision and making operation convenient.

[0015] 3. Use a combination of spray pipes and water distribution plates with a larger inner diameter for spraying, instead of using nozzles, to prevent impurities in the water from clogging the pipes.

[0016] 4. The water distribution plate is convex and dome-shaped, which makes it easier for impurities such as mud and sand to be flushed away more effectively and prevents them from clogging the water distribution holes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a side view of the water distribution plate structure of this utility model.

[0019] Figure 3 This is a top view schematic diagram of the water distribution plate structure of this utility model.

[0020] The components are: 1. Submersible pump body; 2. Check valve; 3. Discharge pipe; 4. Spray pipe; 5. Screw; 6. Water distribution plate; 7. First square tube; 8. First water immersion sensor; 9. Solenoid valve; 10. Clamp; 11. Water distribution hole; 12. Ear plate; 13. Nut; 14. Second square tube; 15. Second water immersion sensor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0022] like Figure 1-3 As shown, a submersible pump with a spray cooling function includes a submersible pump body 1. The output end of the submersible pump body 1 is connected to an outlet pipe 3 via a one-way valve 2. A spray pipe 4 is connected to the outlet pipe 3 to divert a portion of the water for cooling. The spray pipe 4 extends to the top of the submersible pump body 1, allowing the water flowing out to fall onto the submersible pump body 1 for cooling. Several screws 5 are welded to the top of the submersible pump body 1 to fix a water distribution plate 6. The water distribution plate 6 is bolted to the screws 5 to disperse the water flow. A first water immersion sensor is fixed to the outer wall of the outlet pipe 3. A solenoid valve 9 is installed on the spray pipe 4. The water immersion sensor is electrically connected to the solenoid valve 9, so that the solenoid valve 9 is activated when the water level drops to the first water immersion sensor level. A second water immersion sensor 15 is fixed to the outer wall of the outlet end of the submersible pump body 1. The second water immersion sensor 15 is electrically connected to the submersible pump body 1, so that the submersible pump body is shut off when the water level drops to the second water immersion sensor level.

[0023] The outlet pipe 3 connects to the spray pipe 4 near the one-way valve 2. The lower the connection point, the greater the water pressure, making it easier to cool the water flow. The spray pipe 4 is clamped to the submersible pump body 1 by a clamp 10 to prevent it from shaking. The outlet end of the spray pipe 4 faces downwards and is located directly above the submersible body, so that the water flows directly onto the submersible body as it falls. A first square tube 7 is welded between the outer wall of the spray pipe 4 and the outer wall of the outlet pipe 3. This serves three purposes: firstly, it connects the outlet pipe 3 and the spray pipe 4, strengthening the connection; secondly, it protects the first immersion sensor from external damage; and thirdly, it prevents the cooling water from splashing onto the first sensor and causing false triggering.

[0024] The liquid outlet of the spray pipe 4 is at least 200 mm away from the top of the submersible body.

[0025] The water distribution plate 6 is located between the outlet end of the spray pipe 4 and the submersible body. The water distribution plate 6 is a convex, dome-shaped structure, which facilitates the falling of water. Furthermore, due to the abundance of impurities at the bottom of the pool, the water flow can more effectively flush away mud, sand, and other impurities falling onto the water distribution plate 6, preventing blockage of the water distribution holes 11. The diameter of the water distribution plate 6 is smaller than the outer diameter of the submersible body, allowing water falling from the outer edge of the water distribution plate 6 to continue falling onto the submersible pump body 1 for cooling. The water distribution plate 6 has several water distribution holes 11, and at least four lugs 12 are welded in a ring array along its outer edge for connection to the screw 5.

[0026] The number of screws 5 corresponds to the number of ear plates 12. The screws 5 pass through the ear plates 12, and nuts 13 are threaded onto the screws 5 on both the upper and lower sides of the ear plates 12.

[0027] The first water immersion sensor is installed inside the first square tube 7. A second square tube 14 is welded to the outer wall of the liquid outlet end of the submersible body. The second water immersion sensor 15 is fixed on the second square tube 14. The second square tube 14 also serves to protect and prevent splashing.

[0028] Solenoid valve 9 is an underwater waterproof solenoid control valve.

[0029] The working principle of this utility model is as follows:

[0030] In use, the submersible pump body 1 is placed in the water tank, and the submersible pump body 1 is started to pump water out of the tank, and the water level gradually drops. When the water level drops below the first immersion sensor (the first immersion sensor is out of the water), the solenoid valve 9 is activated, and some water in the outlet pipe 3 falls from above the submersible pump body 1 through the spray pipe 4. The falling water first contacts the water distribution plate 6, and then falls through the water distribution holes 11 to be dispersed. Water that does not enter the water distribution holes 11 falls from the outer edge of the water distribution plate 6 onto the submersible pump body 1, thereby cooling it. When the water level drops below the second immersion sensor (the second immersion sensor is out of the water), the submersible pump body 1 is shut off to prevent it from running dry and burning out the motor.

[0031] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0032] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A submersible pump with spray cooling function, characterized in that, The device includes a submersible pump body. The output end of the submersible pump body is connected to an outlet pipe via a one-way valve. A spray pipe is connected to the outlet pipe and extends to the top of the submersible pump body. Several screws are welded to the top of the submersible pump body, and a water distribution plate is bolted to the screws. A first water immersion sensor is fixed on the outer wall of the outlet pipe. A solenoid valve is installed on the spray pipe, and the water immersion sensor is electrically connected to the solenoid valve. A second water immersion sensor is fixed on the outer wall of the outlet end of the submersible pump body and is electrically connected to the submersible pump body.

2. The submersible pump with spray cooling function according to claim 1, characterized in that, The outlet pipe is connected to the spray pipe near the one-way valve. The spray pipe is clamped to the submersible pump body. The outlet end of the spray pipe faces downward and is located directly above the submersible pump body. A first square tube is welded between the outer wall of the spray pipe and the outer wall of the outlet pipe.

3. The submersible pump with spray cooling function according to claim 2, characterized in that, The liquid outlet of the spray pipe is at least 200 mm away from the top of the submersible body.

4. The submersible pump with spray cooling function according to claim 3, characterized in that, The water distribution plate is located between the liquid outlet end of the spray pipe and the submersible body. The water distribution plate is in the shape of an upwardly convex spherical crown. The diameter of the water distribution plate is smaller than the outer diameter of the submersible body. Several water distribution holes are opened on the water distribution plate. At least four ear plates are welded in a ring array on the outer edge of the water distribution plate.

5. The submersible pump with spray cooling function according to claim 4, characterized in that, The number of screws corresponds to the number of ear plates. The screws pass through the ear plates, and nuts are threaded onto the screws on the upper and lower sides of the ear plates.

6. The submersible pump with spray cooling function according to claim 5, characterized in that, The first water immersion sensor is installed inside the first square tube, and a second square tube is welded to the outer wall of the liquid outlet end of the submersible body. The second water immersion sensor is fixed on the second square tube.

7. The submersible pump with spray cooling function according to claim 1, characterized in that, The solenoid valve is an underwater waterproof solenoid control valve.

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