Magnetic drive pump with backwashing function

Abstract

The utility model discloses a magnetic drive pump with a backwashing function, which relates to the technical field of magnetic drive pumps, and comprises a motor and a pump body, an impeller component is arranged in the pump body, a rotating shaft is fixedly mounted on the impeller component, an inner magnetic steel body is fixedly mounted on the rotating shaft, a sliding bearing is arranged on the rotating shaft in a surrounding manner, and the inner magnetic steel body is fixedly mounted on the sliding bearing. The output end of the motor is fixedly connected with an outer magnetic steel body, a through hole is formed in the pump body, and a containing groove is fixedly formed in the pump body. Through the arrangement of the flushing pipe, when the impeller assembly needs to be flushed, the through hole is not sealed any more, the micro water pump works to extract a water source in the liquid storage tank, the extracted water source enters the flushing pipe to flow, the holes are formed in the flushing pipe in sequence, and media can flow to the impeller assembly through the holes; therefore, the impeller assembly is cleaned, the purpose of backwashing the impeller assembly is achieved, and the service life of the magnetic drive pump with the backwashing function is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic pumps, in particular to a magnetic pump with a backwashing function. Background Technique

[0002] A magnetic pump is a machine that drives fluid continuously through magnetic force, mainly composed of a pump body, a magnetic drive, a motor, bearings, an impeller, etc. Magnetic pumps are mainly suitable for pumping liquids that are non-corrosive, do not contain solid particles or fibers, and have a low temperature. The advantages of magnetic pumps include large flow rate, high pressure, easy adjustment, the ability to transport various different liquids, long service life, simple structure, convenient maintenance, etc., and are widely used in many departments such as petroleum, chemical industry, pharmacy, food, synthetic fiber, etc.

[0003] For example, the magnetic pump structure disclosed in the application number CN219062046U includes a pump shaft and a magnetic pump composed of an impeller, a bearing body, a bearing pair, an inner magnet, and a magnetic isolation sleeve. The pump shaft is connected to the bearing body through the bearing pair. The tail of the pump shaft is attached to the inner magnet, and a magnetic isolation sleeve is sleeved outside the inner magnet. The front end of the pump shaft extends out of the magnetic pump and is fixedly connected to the impeller end by a flat key. The pump shaft is made of carbon fiber-reinforced PEEK as the raw material, and there is no steel mold core inside the pump shaft. It is made of carbon fiber-reinforced PEEK as the raw material through a transfer molding process. Due to the pump shaft formed by the transfer molding process, the material has high density, no defects such as pores inside, and high mechanical strength, which is very suitable for working conditions that are corrosion-resistant and permeation-resistant to media. At the same time, there is no steel mold core inside the pump shaft, so it will not be corroded due to medium penetration, and the anti-torque ability will not be weakened, ensuring the stable operation of the magnetic pump.

[0004] However, when this magnetic pump structure is in use, it mainly considers improving the sealing performance and corrosion resistance to ensure the stable operation of the magnetic pump, but does not consider the purpose of backwashing and cleaning the magnetic pump. When too many impurities are adsorbed inside the magnetic pump, it is easy to affect the service life of the magnetic pump.

[0005] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a magnetic pump with a backwashing function is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a magnetic pump with a backwashing function to solve the problem of inconvenient backwashing inside the magnetic pump proposed in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: A magnetic pump with a backwashing function, comprising a motor and a pump body. An impeller assembly is provided inside the pump body. A rotating shaft is fixedly installed on the impeller assembly. An inner magnetic steel body is fixedly installed on the rotating shaft. A sliding bearing is disposed around the rotating shaft. The output end of the motor is fixedly connected to an outer magnetic steel body, and the outer magnetic steel body is located on one side of the inner magnetic steel body;

[0008] A through hole is provided on the pump body. A storage groove is fixedly installed on the pump body. A sealing plate is inserted through the inside of the storage groove, and one end of the sealing plate extends into the inside of the through hole. An adjusting assembly is provided inside the storage groove. A liquid storage tank is fixedly installed on the outer wall of the motor. A support box is fixedly installed inside the liquid storage tank. A micro water pump is fixedly installed on the support box, and the output end of the micro water pump extends into the inside of the support box. A water supply pipe is fixedly connected to the top of the support box, and the water supply pipe is communicated with the output end of the micro water pump. A flushing pipe is inlaid and installed inside the pump body, and one end of the water supply pipe is communicated with the flushing pipe. The flushing pipe is arc-shaped, and spray holes are arranged in an array above. A liquid storage groove is fixedly installed at the bottom of the storage groove.

[0009] Preferably, a pump outlet is connected to the pump body, and the pump outlet is located directly above the storage groove. A junction box is fixedly installed on the top of the motor.

[0010] Preferably, a liquid injection pipe is fixedly installed on the top of the liquid storage tank.

[0011] Preferably, the adjusting assembly includes a knob, a threaded rod, and a threaded sleeve. The threaded sleeve is fixedly installed inside the sealing plate. The threaded rod is threadedly connected inside the threaded sleeve, and one end of the threaded rod extends out of the inside of the storage groove. The knob is fixedly connected to one end of the threaded rod.

[0012] Preferably, a water flow groove is arranged in an array on the motor.

[0013] Preferably, a connector is provided on the water flow groove, and the connector is communicated with an external cooling device.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. Through the setting of the flushing pipe in the present utility model, when it is necessary to flush the impeller assembly, the position of the sealing plate is moved through the adjusting assembly, so that the sealing plate no longer seals the through hole. Then, the micro water pump works to extract the water source inside the liquid storage tank. After the extracted medium enters the inside of the support box, it will flow into the flushing pipe through the water supply pipe. The flushing pipe is provided with holes in sequence. Aligning with the impeller assembly, the holes will make the medium flow towards the impeller assembly, thereby cleaning the impeller assembly, achieving the purpose of backwashing the impeller assembly, and prolonging the service life of the impeller assembly.

[0016] 2. When the utility model cools down the motor of the magnetic pump with backwashing function through the setting of the water chute, the external cooling water source enters the inside of the water chute through the connector. When flowing inside the water chute, the purpose of cooling the motor can be achieved, the cooling efficiency of the motor can be improved, and the motor can be cooled down. By connecting the water chute with the return box body of the external cooling equipment, the water source can be returned for storage and cooling treatment, thus prolonging the service life of the magnetic pump with backwashing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the pump body;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the storage groove;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the liquid storage tank;

[0021] Figure 5 is a sectional structural schematic diagram of the storage groove;

[0022] Figure 6 is a three-dimensional structural schematic diagram of the flushing pipe;

[0023] Figure 7 is a three-dimensional structural schematic diagram of the sealing plate.

[0024] In the figure: 1, motor; 11, junction box; 12, pump body; 121, pump outlet; 122, impeller assembly; 123, rotating shaft; 13, sliding bearing; 14, outer magnetic steel body; 15, inner magnetic steel body; 2, liquid storage tank; 21, liquid injection pipe; 22, support box; 221, water supply pipe; 222, micro water pump; 24, flushing pipe; 25, storage groove; 251, knob; 252, threaded rod; 253, sealing plate; 254, threaded sleeve; 255, through hole; 256, liquid storage tank; 3, water chute; 31, connector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] As Figure 1 - Figure 7 shown, a magnetic pump with a backwashing function includes a motor 1 and a pump body 12. An impeller assembly 122 is arranged inside the pump body 12. A rotating shaft 123 is fixedly installed on the impeller assembly 122. An inner magnetic steel body 15 is fixedly installed on the rotating shaft 123. A sliding bearing 13 is arranged around the rotating shaft 123. The output end of the motor 1 is fixedly connected with an outer magnetic steel body 14, and the outer magnetic steel body 14 is located on one side of the inner magnetic steel body 15. A through hole 255 is arranged on the pump body 12. A storage groove 25 is fixedly installed on the pump body 12. A sealing plate 253 is inserted into the storage groove 25, and one end of the sealing plate 253 extends into the through hole 255. An adjusting assembly is arranged inside the storage groove 25. A liquid storage tank 2 is fixedly installed on the outer wall of the motor 1. A support tank 22 is fixedly installed inside the liquid storage tank 2. A micro water pump 222 is fixedly installed on the support tank 22, and the output end of the micro water pump 222 extends into the support tank 22. A water supply pipe 221 is fixedly connected to the top of the support tank 22, and the water supply pipe 221 is communicated with the output end of the micro water pump 222. A flushing pipe 24 is embedded and installed inside the pump body 12, and one end of the water supply pipe 221 is communicated with the flushing pipe 24. The flushing pipe 24 is arc-shaped, and spray holes are arranged in an array above. A liquid storage tank 256 is fixedly installed at the bottom of the storage groove 25;

[0028] When using the magnetic pump with a backwashing function to transport the medium, the motor 1 is operated to drive the outer magnetic steel body 14 to rotate, and then the inner magnetic steel body 15 is driven to move through the magnetic field. When the inner magnetic steel body 15 moves, the impeller assembly 122 is driven to move through the rotating shaft 123. After the transported medium enters the inside of the pump body 12 through the input end, it is connected to the pipeline through the pump outlet 121, and then the medium can be transported. When it is necessary to flush the impeller assembly 122, the position of the sealing plate 253 is moved through the adjusting assembly, and then the sealing plate 253 no longer seals the through hole 255. The micro water pump 222 is operated to extract the flammable and explosive medium stored inside the liquid storage tank 2. After the extracted medium enters the inside of the support tank 22, it flows into the flushing pipe 24 through the water supply pipe 221. A series of holes are arranged on the flushing pipe 24, aiming at the impeller assembly 122. The holes will make the medium flow towards the impeller assembly 122, and then the impeller assembly 122 will be flushed and cleaned, achieving the purpose of backwashing the impeller assembly 122 and prolonging the service life of the impeller assembly 122. The medium for flushing the impeller assembly 122 will flow into the inside of the liquid storage tank 256 through the through hole 255 for storage. A hole is arranged on one side of the liquid storage tank 256 and is closed by a sealing cover. When it is necessary to discharge the medium, the sealing cover is moved to no longer seal the hole, and then the stored medium can be discharged.

[0029] Further, a pump outlet 121 is connected to the pump body 12, and the pump outlet 121 is located directly above the storage groove 25. A junction box 11 is fixedly installed at the top of the motor 1, and the motor 1 is connected to an external power supply through the junction box 11, so that the motor 1 can operate. When the motor 1 operates, it drives the impeller assembly 122 to rotate.

[0030] Further, a liquid injection pipe 21 is fixedly installed at the top of the liquid storage tank 2. Through the liquid injection pipe 21, it is convenient to add flammable and explosive media used for flushing into the liquid storage tank 2.

[0031] Further, the adjusting assembly includes a knob 251, a threaded rod 252, and a threaded sleeve 254. The threaded sleeve 254 is fixedly installed inside the sealing plate 253. The threaded rod 252 is threadedly connected inside the threaded sleeve 254, and one end of the threaded rod 252 extends out of the storage groove 25. The knob 251 is fixedly connected to one end of the threaded rod 252. When the adjusting assembly works, rotating the knob 251 drives the threaded rod 252 to rotate, and then the position of the threaded sleeve 254 will move. When the threaded sleeve 254 moves, it drives the position of the sealing plate 253 to move.

[0032] Embodiment 2

[0033] As Figure 1 shown, a magnetic pump with an anti-flushing function proposed by the present utility model, compared with Embodiment 1, as another implementation manner of the present utility model, a water flow groove 3 is arranged in an array on the motor 1, a connector 31 is arranged on the water flow groove 3, and the connector 31 is communicated with an external cooling device. The external cooling water source enters the inside of the water flow groove 3 through the connector 31. When flowing inside the water flow groove 3, it can dissipate heat from the motor 1. By connecting the water flow groove 3 with the return box body of the external cooling device, the water source will flow back for storage and cooling treatment, thereby achieving the purpose of dissipating heat from the motor 1.

[0034] Working principle: When using the magnetic pump with an anti-flushing function, first, when using the magnetic pump with an anti-flushing function to transport the medium, the motor 1 is operated to drive the outer magnetic steel body 14 to rotate, and then the inner magnetic steel body 15 is driven to move through the magnetic field. When the inner magnetic steel body 15 moves, it drives the impeller assembly 122 to move through the rotating shaft 123. After the transported medium enters the inside of the pump body 12 through the input end, it is connected to a pipeline through the pump outlet 121, and then the medium can be transported. When dissipating heat from the motor 1 of the magnetic pump with an anti-flushing function, the external cooling water source enters the inside of the water flow groove 3 through the connector 31. When flowing inside the water flow groove 3, the purpose of dissipating heat from the motor 1 can be achieved, the heat dissipation efficiency of the motor 1 can be improved, the motor 1 can be dissipated heat, and by connecting the water flow groove 3 with the return box body of the external cooling device, the water source will flow back for storage and cooling treatment.

[0035] Finally, when it is necessary to flush the impeller assembly 122, the position of the sealing plate 253 is moved through the adjustment assembly. As a result, the sealing plate 253 no longer seals the through hole 255, enabling the micro water pump 222 to operate to extract the water source inside the liquid storage tank 2. After the extracted medium enters the inside of the support box 22, it will flow into the flushing pipe 24 through the water supply pipe 221. The flushing pipe 24 is sequentially provided with holes that are aligned with the impeller assembly 122. The holes will cause the medium to flow towards the impeller assembly 122, thereby cleaning the impeller assembly 122, achieving the purpose of backwashing the impeller assembly 122, and extending the service life of the impeller assembly 122.

[0036] This is the working principle of this magnetic pump with a backwashing function.

[0037] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A magnetic pump with a backwashing function, comprising a motor (1) and a pump body (12), characterized in that: Inside the pump body (12), an impeller assembly (122) is provided. A rotating shaft (123) is fixedly installed on the impeller assembly (122). An inner magnetic steel body (15) is fixedly installed on the rotating shaft (123). A sliding bearing (13) is arranged around the rotating shaft (123). The output end of the motor (1) is fixedly connected to an outer magnetic steel body (14), and the outer magnetic steel body (14) is located on one side of the inner magnetic steel body (15). A through hole (255) is provided on the pump body (12). A storage groove (25) is fixedly installed on the pump body (12). A sealing plate (253) is inserted into the storage groove (25), and one end of the sealing plate (253) extends into the through hole (255). An adjusting assembly is arranged inside the storage groove (25). A liquid storage tank (2) is fixedly installed on the outer wall of the motor (1). A support box (22) is fixedly installed inside the liquid storage tank (2). A micro water pump (222) is fixedly installed on the support box (22), and the output end of the micro water pump (222) extends into the support box (22). A water supply pipe (221) is fixedly connected to the top of the support box (22), and the water supply pipe (221) is communicated with the output end of the micro water pump (222). A flushing pipe (24) is embedded inside the pump body (12), and one end of the water supply pipe (221) is communicated with the flushing pipe (24). The flushing pipe (24) is arc-shaped, and spray holes are arranged in an array above it. A liquid storage tank (256) is fixedly installed at the bottom of the storage groove (25).

2. The magnetic pump with a backwashing function according to claim 1, characterized in that: A pump outlet (121) is connected to the pump body (12), and the pump outlet (121) is located directly above the storage groove (25). A junction box (11) is fixedly installed on the top of the motor (1).

3. The magnetic pump with a backwashing function according to claim 2, characterized in that: A liquid injection pipe (21) is fixedly installed on the top of the liquid storage tank (2).

4. The magnetic pump with a backwashing function according to claim 1, characterized in that: The adjusting assembly includes a knob (251), a threaded rod (252), and a threaded sleeve (254). The threaded sleeve (254) is fixedly installed inside the sealing plate (253). The threaded rod (252) is threadedly connected inside the threaded sleeve (254), and one end of the threaded rod (252) extends out of the storage groove (25). The knob (251) is fixedly connected to one end of the threaded rod (252).

5. The magnetic pump with a backwashing function according to claim 1, characterized in that: Flow grooves (3) are arranged in an array on the motor (1).

6. The magnetic pump with a backwashing function according to claim 5, wherein: Connectors (31) are arranged on the flow grooves (3), and the connectors (31) are communicated with an external cooling device.

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