Deep well submersible pump with heat dissipation structure

Abstract

The utility model discloses a deep well submersible pump with a heat dissipation structure, and relates to the technical field of submersible pumps. According to the submersible pump, the contact area is increased through the heat dissipation fins on the outer wall of the heat dissipation sleeve, the spiral flow guide plates on the inner wall of the flow guide sleeve prolong the water flow contact time, the vertical flow guide plates scatter water flow, and uneven heat exchange is avoided; by matching with the negative pressure acceleration effect of a Venturi flow guide sleeve, a water flowing channel is shortened, space is saved, and high-strength operation scenes such as continuous deep well water pumping can be adapted, and the problems that an existing device only depends on passive heat dissipation of'clear water flows through the surface of a motor ', the heat dissipation mode is single, a U-shaped pipe is adopted for prolonging the water flowing channel, the heat conduction efficiency is limited, and the service life is long are solved. And the problem of heat accumulation during long-time high-load operation is difficult to deal with.

Description

TECHNICAL FIELD

[0001] The utility model relates to submersible pump technical field, concretely is a deep well submersible pump with heat dissipation structure. BACKGROUND

[0002] The deep well submersible pump is a core equipment adapted to deep well groundwater extraction, adopts motor and pump body integrated submergence design, compact machine body is high pressure resistant, can be inducted to hundreds of meters underground operation, has sandproof wear resistance, high efficiency and energy saving characteristics, passes through multistage impeller and promotes lift, is adapted to the scene such as farmland irrigation, industrial water supply, domestic water and emergency drainage, and is installed conveniently and runs stably, can adapt to complex underground environment, is the key equipment of deep water resource development and utilization,

[0003] As the utility model number CN218624677U discloses a kind of device for preventing deep well submersible pump motor from burning, belong to submersible pump technical field, it includes connecting cylinder, adjusting cylinder, motor cylinder and locking piece;Mine sludge reservoir can be recycled for the clear water precipitated, can adjust the height of adjusting cylinder according to clear water horizon, so that clear water flows through adjusting cylinder and connecting cylinder in turn after motor and then enters pump, both ensure motor heat dissipation and guarantee that pump will not pump mud and damage pump overflow piece;

[0004] However, the utility model only relies on the passive heat dissipation of "clear water flowing through the surface of motor", the heat dissipation mode is single, the heat conduction efficiency is limited by using U-shaped tube to extend the water channel, and it is difficult to deal with the heat accumulation of long-time high-load operation;The height is adjusted and fixed by "locking piece+clamping hole+clamping column", and the locking piece needs to be repeatedly disassembled for disassembly and assembly, and tools may be needed to assist, which is complicated to operate. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a deep well submersible pump with heat dissipation structure, which solves the technical problems that the existing device only relies on the passive heat dissipation of "clear water flowing through the surface of motor", the heat dissipation mode is single, the heat conduction efficiency is limited by using U-shaped tube to extend the water channel, and it is difficult to deal with the heat accumulation of long-time high-load operation;The height is adjusted and fixed by "locking piece+clamping hole+clamping column", and the locking piece needs to be repeatedly disassembled for disassembly and assembly, and tools may be needed to assist, which is complicated to operate.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0007] A deep well submersible pump with heat dissipation structure, comprising:

[0008] A motor, the driving end of which is rotatably connected to a submersible pump housing;

[0009] A heat dissipation jacket, the inner wall surface of which is fixedly connected with the outer wall of the motor, and the upper end is fixedly sleeved on the outer wall surface of the submersible pump shell, and the inner wall of the heat dissipation jacket is uniformly provided with a plurality of water inlets along the circumference;

[0010] A flow guide sleeve, the upper end of which is detachably connected with the lower end of the heat dissipation jacket, and the two are sealingly matched;

[0011] A filter cover, which is detachably connected at the lower end of the flow guide sleeve, and the two are sealingly matched;

[0012] The heat dissipation assembly is divided into two groups, one group is fixedly installed on the outer wall surface of the heat dissipation jacket, and the other group is fixedly installed on the inner wall surface of the flow guide sleeve;

[0013] The heat dissipation assembly comprises: a plurality of heat dissipation fins, which are uniformly distributed along the circumference of the heat dissipation jacket and are fixedly installed on the outer wall surface of the heat dissipation jacket along the axial direction; a plurality of spiral flow guide plates and a plurality of vertical flow guide plates, which are uniformly distributed along the circumference of the flow guide sleeve and are fixedly installed on the inner wall surface of the flow guide sleeve along the axial direction.

[0014] Preferably, the inner and outer wall surfaces of the lower end of the heat dissipation jacket are provided with sealing grooves, and a sealing ring is embedded and fixed in each of the two sealing grooves; the upper end surface of the flow guide sleeve is provided with an annular insertion slot matched with the lower end of the heat dissipation jacket; the lower end of the heat dissipation jacket is inserted into the annular insertion slot, and the two sealing rings are tightly sealed with the slot wall of the annular insertion slot.

[0015] Preferably, the lower end surface of the heat dissipation jacket is uniformly provided with a plurality of L-shaped insertion ports along the circumference; the inner wall of each L-shaped insertion port is provided with a guide groove, and the connecting end of the L-shaped insertion port is provided with an insertion pin hole.

[0016] Preferably, the upper end surface of the flow guide sleeve is fixedly provided with a plurality of L-shaped insertion blocks, the L-shaped insertion blocks are one-to-one corresponding and matched with the L-shaped insertion ports; the insertion end of the L-shaped insertion block is fixedly provided with a limiting pin, and the limiting pin is matched with the insertion pin hole.

[0017] Preferably, a pressing plate is slidably connected in the vertical direction in the guide groove; the upper end surface of the pressing plate is fixedly provided with two symmetrically distributed spring limiting rods; the outer wall surfaces of the two spring limiting rods are sleeved with return springs, the two ends of the return springs are fixedly connected with the inner top wall of the L-shaped insertion port and the upper end surface of the pressing plate respectively, and the two side connecting ends of the pressing plate are fixedly provided with guide blocks slidably matched with the guide groove.

[0018] Preferably, a bracket is fixedly installed at the center position of the upper end surface of the filter cover; the upper end surface of the bracket abuts and supports the lower end surface of the motor.

[0019] Preferably, the flow guide sleeve adopts a Venturi pipe and is connected with the heat dissipation jacket, and the outer wall of the flow guide sleeve is provided with a plurality of anti-skid lines.

[0020] Advantages

[0021] The utility model provides a deep well submersible pump with heat dissipation structure has the following advantages:

[0022] The utility model discloses a "active heat exchange + structure optimization" double heat dissipation: the heat dissipation fin of heat dissipation cover outer wall increases the contact area, and the spiral flow guide plate of flow guide cover inner wall prolongs the water flow contact time, and the vertical flow guide plate disperses the water flow and avoids the uneven heat exchange, and then cooperates the Venturi flow guide cover's negative pressure acceleration effect, simultaneously realizes shortening the water flow channel, saves the space, forms "internal and external double heat exchange + water flow active acceleration" high -efficient heat dissipation system, and the heat dissipation efficiency is far more than passive heat dissipation, can adapt deep well continuous pumping etc. High -intensity operation scene, solve the existing device only relies on "clear water flows through motor surface " passive heat dissipation, and the heat dissipation mode is single, adopts U -shaped tube and prolongs the water flow channel, and the heat conduction efficiency is limited, and it is difficult to deal with the heat accumulation of long -time high -load operation.

[0023] The utility model discloses a quick -release structure of L type splicing block + limit pin + reset spring, cooperates the anti -skid line of flow guide cover outer wall, and single -handed rotation can complete the disassembly of heat dissipation cover and flow guide cover;Double sealing ring is integrated in the splicing structure, and disassembly realizes sealing simultaneously, need not additional operation;Filter cover can be disassembled and cleaned, and the whole process does not need complex tool, and maintenance efficiency is greatly improved, and the existing device is adjusted height and fixed through " locking piece + clamping hole + clamping column " and solves the problem that disassembly needs repeatedly disassembling locking piece, and possibly needs tool auxiliary, and the operation is complicated. DRAWINGS

[0024] Figure 1 It is the whole structure schematic diagram of the utility model;

[0025] Figure 2 It is the cross section schematic diagram of the whole structure of the utility model;

[0026] Figure 3 It is the flow guide cover structure schematic diagram of the utility model;

[0027] Figure 4 It is the heat dissipation cover structure schematic diagram of the utility model;

[0028] Figure 5 It is the pressing plate structure schematic diagram of the utility model.

[0029] In the figure: 1, motor; 2, submersible pump shell; 3, heat sink; 4, water inlet; 5, flow guide sleeve; 6, filter cover; 7, heat dissipation fin; 8, spiral flow guide plate; 9, vertical flow guide plate; 10, sealing groove; 11, sealing ring; 12, annular plug-in slot; 13, L-shaped plug-in port; 14, guide groove; 15, plug-in pin hole; 16, L-shaped plug-in block; 17, limit pin; 18, pressing plate; 19, spring limit rod; 20, return spring; 21, bracket; 22, anti-skid pattern; 23, guide block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0031] Please refer to Figures 1-5 A deep-well submersible pump with a heat dissipation structure comprises:

[0032] The motor 1 is rotatably and sealingly connected with the submersible pump shell 2 at the driving end thereof;

[0033] The heat sink 3 is fixedly connected with the outer wall of the motor 1, and the upper end of the heat sink 3 is fixedly sleeved on the outer wall of the submersible pump shell 2; the inner wall of the heat sink 3 is uniformly provided with a plurality of water inlets 4 along the circumference thereof;

[0034] The flow guide sleeve 5 is detachably connected with the lower end of the heat sink 3 in a sealing manner;

[0035] The filter cover 6 is detachably connected with the lower end of the flow guide sleeve 5 in a sealing manner;

[0036] The heat dissipation assembly is divided into two groups, one group of which is fixedly installed on the outer wall of the heat sink 3, and the other group of which is fixedly installed on the inner wall of the flow guide sleeve 5;

[0037] In use, the motor 1 is rotatably and sealingly connected with the submersible pump shell 2 at the driving end thereof, which not only prevents well water from seeping into the motor 1, but also stably transmits power; the heat sink 3 made of high-thermal-conductivity material is fixedly attached to the outer wall of the motor 1, the upper end of the heat sink 3 is sleeved on the outer wall of the submersible pump shell 2, thereby forming a direct heat conduction path, and ensuring that the heat generated by the motor 1 during operation is quickly conducted to the heat sink 3; the inner wall of the heat sink 3 is uniformly provided with water inlets 4 along the circumference thereof, which are used for introducing cold water from a deep well and providing sufficient water source for the submersible pump shell 2.

[0038] The upper end of the flow guide sleeve 5 is sealingly connected with the heat sink 3, and the lower end of the flow guide sleeve 5 is connected with the filter cover 6; the filter cover 6 is internally provided with a filter structure, which can filter impurities in well water; the flow guide sleeve 5 adopts a Venturi pipeline structure, which can accelerate water flow after being connected with the heat sink 3, thereby forming a negative pressure effect and accelerating the absorption of cold water from the deep well into the water inlets 4, and ensuring heat exchange efficiency.

[0039] Please refer to Figure 2The heat dissipation assembly comprises: a plurality of heat dissipation fins 7, which are uniformly distributed along the circumference of the heat dissipation sleeve 3 and are fixedly installed on the outer wall surface of the heat dissipation sleeve 3 along the axial direction; a plurality of spiral flow guide plates 8 and a plurality of vertical flow guide plates 9, which are uniformly distributed along the circumference of the flow guide sleeve 5 and are fixedly installed on the inner wall surface of the flow guide sleeve 5 along the axial direction.

[0040] In use, the heat dissipation fins 7 strengthen the convective heat dissipation of the outer wall, the spiral flow guide plates 8 and the vertical flow guide plates 9 optimize the water flow state of the inner wall, and the cooperation of the two enables the heat of the motor 1 to be quickly transferred to the water body through the heat dissipation sleeve 3, thereby greatly improving the heat dissipation efficiency compared with the conventional structure and effectively improving the long-time heat dissipation efficiency of the motor 1.

[0041] Please refer to Figure 4 The plurality of heat dissipation fins 7 are uniformly distributed along the circumference of the heat dissipation sleeve 3 and extend axially and are fixed, and the sheet structure significantly increases the contact area of the heat dissipation sleeve 3 with the well water, so that the heat of the motor 1 conducted by the heat dissipation sleeve 3 is quickly dissipated to the surrounding water.

[0042] Please refer to Figure 2 The plurality of spiral flow guide plates 8 and the plurality of vertical flow guide plates 9 are uniformly distributed along the circumference of the inner wall of the flow guide sleeve 5 and extend axially and are fixed, the spiral flow guide plates 8 guide the water flow to form a spiral upward flow, prolonging the contact time of the water flow with the flow guide sleeve 5 and making the water flow more fully contact the motor 1; the vertical flow guide plates 9 disperse the water flow into turbulent flow, avoiding local uneven heat exchange and ensuring that the water flow fully exchanges heat with the inner wall of the flow guide sleeve 5.

[0043] Please refer to Figure 4 The inner and outer wall surfaces of the lower end of the heat dissipation sleeve 3 are each provided with a sealing groove 10, and two sealing rings 11 are embedded and fixed in the two sealing grooves 10; the upper end surface of the flow guide sleeve 5 is provided with an annular insertion groove 12 which is adapted to be inserted into the lower end of the heat dissipation sleeve 3; the lower end of the heat dissipation sleeve 3 is inserted into the annular insertion groove 12, and the two sealing rings 11 are tightly sealed with the groove wall of the annular insertion groove 12.

[0044] In use, the inner and outer wall surfaces of the lower end of the heat dissipation sleeve 3 are each provided with a sealing groove 10, and a sealing ring 11 is embedded in the groove; the upper end of the flow guide sleeve 5 is provided with an annular insertion groove 12, and after the heat dissipation sleeve 3 is inserted into the annular insertion groove 12, the sealing ring 11 is tightly pressed against the insertion groove wall, forming a double-sealing barrier to block the infiltration of well water impurities into the inside of the L-shaped insertion port 13.

[0045] Please refer to Figure 4 The lower end surface of the heat dissipation sleeve 3 is uniformly provided with a plurality of L-shaped insertion ports 13 along the circumference; the inner wall of each L-shaped insertion port 13 is provided with a guide groove 14, and the connecting end of the L-shaped insertion port 13 is provided with an insertion pin hole 15.

[0046] In use, the limiting pin 17 at the end of the L-shaped insertion block 16 can be clamped into the insertion pin hole 15, achieving the circumferential positioning of the heat dissipation sleeve 3 and the flow guide sleeve 5, and avoiding relative rotation due to vibration during operation.

[0047] Please refer to Figure 3 The upper end face of the flow guide sleeve 5 is fixedly provided with a plurality of L-shaped plug-in blocks 16, which are matched with the L-shaped plug-in interfaces 13 one by one. The plug-in end of the L-shaped plug-in block 16 is fixedly provided with a limiting pin 17, which is matched with the plug-in pin hole 15.

[0048] In use, the L-shaped plug-in and the limiting pin 17 realize quick and accurate positioning, providing a basis for sealing and compression; the pressing plate 18 and the return spring 20 ensure the stability of the connection in a vibrating environment.

[0049] Please refer to Figure 5 The pressing plate 18 is slidably connected in the vertical direction in the guide groove 14; the upper end face of the pressing plate 18 is fixedly provided with two symmetrically distributed spring limiting rods 19; the outer wall surface of the two spring limiting rods 19 is sleeved with a return spring 20, and the two ends of the return spring 20 are fixedly connected with the inner top wall of the L-shaped plug-in interface 13 and the upper end face of the pressing plate 18 respectively; the two side connecting ends of the pressing plate 18 are fixedly provided with guide blocks 23 which are slidably matched with the guide groove 14.

[0050] In use, the continuous elastic force of the return spring 20 pushes the pressing plate 18 to compress the L-shaped plug-in block 16, offsetting the vibration impact during equipment operation and preventing the connection from loosening.

[0051] Please refer to Figure 2 The upper end face of the filter cover 6 is fixedly provided with a bracket 21 at the center position; the upper end face of the bracket 21 abuts and supports the lower end face of the motor 1.

[0052] In use, the bracket 21 is fixedly installed at the upper end face of the filter cover 6, and the bracket 21 abuts with the lower end face of the motor 1, providing bottom support for the motor 1, reducing the vibration amplitude during high-speed operation of the motor 1, avoiding loosening of the abutting surface of the motor 1 and the heat sink 3, and ensuring the stability of the heat conduction path.

[0053] Please refer to Figure 3 The flow guide sleeve 5 is connected with the heat sink 3 by using a Venturi pipeline, and the outer wall of the flow guide sleeve 5 is provided with a plurality of anti-skid lines 22.

[0054] In use, the outer wall of the flow guide sleeve 5 is provided with anti-skid lines 22, which increase the frictional resistance when the hand holds, facilitating the rotation of the plug-in or disassembly, and a single person can complete the operation, reducing the maintenance difficulty of deep well operation.

[0055] In this embodiment, the heat dissipation assembly cooperates, and the Venturi flow guide sleeve 5 accelerates the water flow, realizing rapid heat dissipation of the motor 1, adapting to the heat dissipation demand of long-time operation of the deep well, and avoiding overheating damage of the motor 1.

[0056] Specifically, after the submersible pump is put into the deep well, the motor 1 starts to drive the submersible pump to run, and the well water is drawn into the submersible pump shell 2 through the filter cover 6 and the water inlet 4, and the generated heat is quickly transferred to the heat sink 3 through the outer wall. The flow guide sleeve 5 adopts a Venturi pipe structure, and forms a negative pressure effect during operation, accelerating the adsorption of cold water from the water inlet 4 on the inner wall of the heat sink 3. When the cold water flows through the inner wall of the heat sink 3, it forms an inner and outer double heat exchange with the heat dissipation fins 7 on the outer wall: the heat dissipation fins 7 increase the contact area between the heat sink 3 and the external well water, quickly dissipating the conducted heat; the spiral guide plate 8 on the inner wall of the flow guide sleeve 5 guides the water flow to form a spiral upward flow, prolonging the contact time of the water flow with the motor 1 and the flow guide sleeve 5, and the vertical guide plate 9 disperses the water flow into turbulent flow, avoiding local uneven heat exchange. The inner and outer cooperative heat dissipation structure greatly improves the heat exchange efficiency, ensures the temperature stability of the motor 1 during long-time operation, and adapts to the continuous pumping scene in the deep well.

[0057] In the embodiment, through L-shaped plug-in locking, double-sealing protection, bracket 21 support shock absorption, the quick disassembly and maintenance of the submersible pump is realized, and at the same time the structural stability during operation is ensured, and the difficulty of deep well operation is reduced.

[0058] Specifically, during installation, hold the anti-slip pattern 22 on the outer wall of the flow guide sleeve 5, insert the L-shaped plug-in block 16 at the upper end into the L-shaped plug-in port 13 of the heat sink 3, rotate the flow guide sleeve 5 to make the limiting pin 17 be clamped into the plug-in pin hole 15, and complete the circumferential positioning. At this time, the heat sink 3 is inserted into the annular plug-in groove 12 of the flow guide sleeve 5, the sealing ring 11 in the sealing groove 10 is pressed against the groove wall, double sealing is formed, and the penetration of impurities is blocked. The reset spring 20 in the L-shaped plug-in port 13 pushes the pressing plate 18, and the pressing plate 18 slides along the guide groove 14 through the guide block 23, continuously presses the L-shaped plug-in block 16, offsets the running vibration, and prevents the connection from loosening. The bracket 21 at the upper end of the filter cover 6 abuts against the lower end surface of the motor 1, providing bottom support for the motor 1, reducing the vibration amplitude during high-speed operation, and ensuring the stability of the heat conduction path.

[0059] During disassembly and maintenance, the flow guide sleeve 5 is pushed towards the heat sink 3, so that the limiting pin 17 is separated from the plug-in pin hole 15, then the flow guide sleeve 5 is rotated in the opposite direction, and the heat sink 3 and the flow guide sleeve 5 are separated by pulling, which can be completed by one person. The filter cover 6 can be disassembled and cleaned, and no complex tools are needed throughout the process, which greatly reduces the maintenance difficulty of deep well operation.

[0060] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A deep well submersible pump with a heat dissipation structure, characterized in that, Include: Motor (1), its drive end rotation seal connection with submersible pump shell (2); Radiating cover (3), its inner wall surface and the outer wall of motor (1) are fixedly connected, and the upper end is fixedly sleeved on the outer wall surface of submersible pump shell (2), the inner wall of radiating cover (3) is evenly provided with several water inlets (4) along the circumference; Flow guide cover (5), its upper end is detachably connected with the lower end of radiating cover (3), and the two are sealingly matched; Filter cover (6), which is detachably connected to the lower end of the flow guide cover (5) and sealingly matched therebetween; The radiating assembly is divided into two groups, one group is fixedly installed on the outer wall surface of the radiating cover (3), and the other group is fixedly installed on the inner wall surface of the flow guide cover (5); The radiating assembly includes: a plurality of radiating fins (7) are evenly distributed along the circumference of the radiating cover (3) and fixedly installed on the outer wall surface of the radiating cover (3) along the axial direction; a plurality of spiral flow guide plates (8) and a plurality of vertical flow guide plates (9) are evenly distributed along the circumference of the flow guide cover (5) and fixedly installed on the inner wall surface of the flow guide cover (5) along the axial direction.

2. The deep-well submersible pump with a heat dissipation structure according to claim 1, characterized in that, The inner and outer wall surfaces of the lower end of the radiating cover (3) are provided with sealing grooves (10), and the two sealing grooves (10) are embedded with sealing rings (11); the upper end surface of the flow guide cover (5) is provided with an annular insertion slot (12) matched with the lower end of the radiating cover (3); the lower end of the radiating cover (3) is inserted into the annular insertion slot (12), and the two sealing rings (11) are compressed and sealed with the slot wall of the annular insertion slot (12).

3. The deep-well submersible pump with heat dissipation structure according to claim 1, characterized in that, The lower end surface of the radiating cover (3) is evenly provided with a plurality of L-shaped insertion ports (13) along the circumference; the inner wall of each L-shaped insertion port (13) is provided with a guide groove (14), and the connecting end of the L-shaped insertion port (13) is provided with an insertion pin hole (15).

4. The deep-well submersible pump with a heat dissipation structure according to claim 3, characterized in that, The upper end surface of the flow guide cover (5) is fixedly provided with a plurality of L-shaped insertion blocks (16), and the L-shaped insertion blocks (16) are one-to-one corresponding and matched with the L-shaped insertion ports (13); the insertion end of the L-shaped insertion block (16) is fixedly provided with a limiting pin (17), and the limiting pin (17) is matched with the insertion pin hole (15).

5. The deep-well submersible pump with heat dissipation structure according to claim 4, characterized in that, The guide groove (14) is slidably connected with a pressing plate (18) along the vertical direction; the upper end surface of the pressing plate (18) is fixedly provided with two symmetrically distributed spring limiting rods (19); the outer wall surfaces of the two spring limiting rods (19) are sleeved with return springs (20), the two ends of the return springs (20) are fixedly connected with the inner top wall of the L-shaped insertion port (13) and the upper end surface of the pressing plate (18) respectively, and the two side connecting ends of the pressing plate (18) are fixedly provided with guide blocks (23) slidably matched with the guide groove (14).

6. The deep-well submersible pump with a heat dissipation structure according to claim 1, characterized in that, The upper end surface of the filter cover (6) is fixedly provided with a bracket (21); the upper end surface of the bracket (21) abuts and supports the lower end surface of the motor (1).

7. The deep-well submersible pump with heat dissipation structure according to claim 1, characterized in that, The flow guide cover (5) is connected with the radiating cover (3) by using a Venturi pipe, and the outer wall of the flow guide cover (5) is provided with a plurality of anti-skid lines (22).

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