Integral corrosion-resistant chemical pump

Abstract

The utility model discloses an integral anticorrosion chemical pump, including pump body, motor stator and rotor, the motor stator includes the frame and has winding stator core, the pump body is directly connected with the frame through bolt, the rotor is coaxially installed in have winding stator core, the utility model discloses an integral molding of rotor and impeller, has cancelled traditional shaft coupling and external transmission component, adopts bearingless structure, completely avoids traditional motor bearing wear and tear problem, reduces the shutdown failure of bearing failure from the root, prolongs the overall service life of pump significantly, while dispenses with traditional shaft coupling component, avoids the transmission failure of the loose, wear and tear of shaft coupling, further reduces the failure risk in the equipment operation, promotes the operation stability, the integrated design of bearingless, shaft coupling, greatly simplifies the internal structure of pump, makes the pump body whole volume smaller, weight lighter, and the installation space is significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of chemical pump equipment technology, and in particular to an integrated corrosion-resistant chemical pump. Background Technology

[0002] Fluoroplastic magnetic pumps are widely used in chemical production and other fields. However, existing fluoroplastic magnetic pumps use a separate design for the pump and motor, which has many shortcomings. The separate design makes the fluoroplastic magnetic pump larger and heavier, occupies more space, and causes inconvenience for installation, increasing the difficulty and cost of installation. Therefore, an integrated corrosion-resistant chemical pump is proposed to solve this problem. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: An integrated corrosion-resistant chemical pump includes a pump body, a motor stator, and a rotor. The motor stator includes a base and a wound stator core. The pump body and the base are directly connected by bolts. The rotor is coaxially installed inside the wound stator core and can rotate relative to the wound stator core. An impeller is integrally formed at one end of the rotor. The motor stator and the rotor are isolated by a shielding sleeve. When the wound stator core is energized, the rotor rotates through the action of the magnetic field, thereby driving the impeller to rotate. The rotation of the impeller enables the transport of the medium.

[0004] As an improvement to the above technical solution, the pump body has an inlet and an outlet.

[0005] As an improvement to the above technical solution, a rear end cover is also included, which is assembled at the tail end of the motor stator.

[0006] As an improvement to the above technical solution, epoxy resin is uniformly filled between the frame and the wound stator core to form a plastic sealant.

[0007] The beneficial effects of this utility model are: By integrating the rotor and impeller into a single unit, traditional couplings and external transmission components are eliminated. The bearingless structure completely avoids the wear problems associated with traditional motor bearings, reducing downtime caused by bearing failure and significantly extending the overall service life of the pump. Simultaneously, eliminating traditional coupling components avoids transmission failures caused by coupling loosening or wear, further reducing the risk of malfunctions during equipment operation and improving operational stability. The integrated design, without bearings or couplings, greatly simplifies the pump's internal structure, resulting in a smaller and lighter pump body that occupies significantly less installation space. This advantage not only reduces the space requirements for the installation site but also greatly facilitates on-site installation and operation, making it particularly suitable for applications with limited space, such as chemical workshops. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model; Reference numerals in the attached drawings: 1. Pump body; 2. Impeller; 3. Frame; 4. Stator core with windings; 5. Rear end cover; 6. Plastic sealant; 7. Shielding sleeve; 8. Rotor. Detailed Implementation

[0009] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0010] An integrated corrosion-resistant chemical pump includes a pump body 1, a motor stator, and a rotor 8. The motor stator includes a frame 3 and a wound stator core 4. The pump body 1 and the frame 3 are directly connected by bolts. The rotor 8 is coaxially installed in the wound stator core 4 and can rotate relative to the wound stator core 4. An impeller 2 is integrally formed at one end of the rotor 8. The motor stator and the rotor 8 are isolated by a shielding sleeve 7. When the wound stator core 4 is energized, the rotor 8 rotates through the action of the magnetic field, thereby driving the impeller 2 to rotate. The rotation of the impeller 2 realizes the transportation of the medium.

[0011] Specifically, when an external power source supplies power to the wound stator core 4, an alternating current is generated in the wound stator core 4. According to the law of electromagnetic induction, the alternating current will induce a rotating magnetic field inside the stator core. The rotating magnetic field continuously "cuts" the surface of the rotor 8 located inside the wound stator core, inducing eddy currents inside the rotor 8. The eddy currents are then subjected to the "Ampere force" in the rotating magnetic field, forming an electromagnetic torque that drives the rotor 8 to rotate. This causes the rotor 8 to rotate following the rotating magnetic field of the motor stator, thereby driving the impeller 2, which is integrally molded with it, to rotate. The bearingless structure simplifies the internal structure of the pump and avoids the problems associated with traditional electric pumps. The pump's lifespan is reduced due to bearing wear, and the absence of bearings and traditional couplings results in a more compact overall structure, smaller size, lighter weight, and less space requirements. This greatly simplifies installation, reduces costs, lowers energy consumption, and improves transmission efficiency. In terms of maintenance, the integrated and simplified structure eliminates the need for complex disassembly of the pump and motor, reducing maintenance steps, increasing efficiency, lowering costs, and minimizing the risk of malfunctions caused by loose components. The shielding sleeve 7 effectively prevents the pump's internal medium from contacting the motor stator, avoiding corrosion of the stator.

[0012] In one embodiment, the pump body 1 has an inlet and an outlet. The inlet of the pump body 1 is connected to the suction pipe. When the impeller 2 rotates at high speed under the drive of the rotor 8, a low-pressure zone is formed in the central area of ​​the impeller. The external atmospheric pressure or suction side pressure forces the medium to be transported into the pump chamber through the inlet and into the center of the impeller. Under the action of the rotating blades, the medium entering the center of the impeller 2 gains kinetic energy and centrifugal force. The medium is thrown at high speed to the outer edge of the impeller and enters the volute-shaped flow channel of the pump body 1. In the volute flow channel, the kinetic energy of the medium is gradually converted into pressure energy, and the pressure continues to rise. The pressurized medium gathers at the outlet of the pump body 1. The high-pressure medium enters the discharge pipe through the outlet and is transported to the target location.

[0013] In one embodiment, a rear end cover 5 is also included. The rear end cover 5 is assembled at the tail end of the motor stator. The rear end cover 5 is installed at the tail end of the motor stator and together with the pump body 1, it forms a complete and closed cavity, which completely seals the rear end of the winding stator core 4 and the shielding sleeve 7 inside the pump body 1.

[0014] In one embodiment, epoxy resin is uniformly filled between the base 3 and the wound stator core 4 to form a plastic sealant 6. The wound stator core 4 is encapsulated using a potting process. The resulting plastic sealant 6 serves as a reinforcing sleeve for the shielding sleeve 7, greatly enhancing the strength and stability of the shielding sleeve 7. This makes the shielding sleeve 7 less prone to damage during long-term use, effectively improving the reliability of the seal, minimizing the risk of media leakage, and avoiding environmental pollution and safety accidents caused by media leakage.

[0015] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. An integrated corrosion-resistant chemical pump, characterized in that, include: The pump includes a pump body (1), a motor stator and a rotor (8). The motor stator includes a frame (3) and a winding stator core (4). The pump body (1) and the frame (3) are directly connected by bolts. The rotor (8) is coaxially installed in the winding stator core (4) and can rotate relative to the winding stator core (4). One end of the rotor (8) is integrally formed with an impeller (2). The motor stator and the rotor (8) are isolated by a shielding sleeve (7). When the winding stator core (4) is energized, the rotor (8) is rotated by the magnetic field, thereby driving the impeller (2) to rotate. The rotation of the impeller (2) realizes the transport of the medium.

2. The integrated corrosion-resistant chemical pump according to claim 1, characterized in that: The pump body (1) has an inlet and an outlet.

3. The integrated corrosion-resistant chemical pump according to claim 1, characterized in that: It also includes a rear end cover (5), which is mounted on the tail end of the motor stator.

4. The integrated corrosion-resistant chemical pump according to claim 1, characterized in that: The base (3) and the wound stator core (4) are uniformly filled with epoxy resin to form a plastic sealant (6).

Images