A Low Eddy Current Loss High Efficiency Magnetic Pump
A technology of eddy current loss and magnetic pump, which is applied to parts, pumps, and pump components of pumping devices for elastic fluids, and can solve the problem of increasing the equivalent electromagnetic air gap, increasing the amount of internal and external magnetic steel, and pushing up the cost of magnetic pumps and other issues, to achieve significant energy-saving effects, increase magnetic flux density, and reduce power loss
Active Publication Date: 2021-12-28
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology
[0003] In the prior art, the isolation sleeve is made of non-magnetic and corrosion-resistant materials. This isolation sleeve increases the equivalent electromagnetic air gap between the outer magnet and the inner magnet, thereby increasing the amount of inner and outer magnets, and promoting Increase the cost of the magnetic pump; especially, the spacer between the inner and outer magnets is stationary, and will generate eddy currents under the action of the magnetic field between the inner and outer magnets, and the eddy current loss will lead to increased energy consumption and reduced efficiency of the magnetic pump
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[0023] Such as Figure 1-3 As shown, the present invention includes a pump body 1, a static ring 2, an impeller 3, a sealing ring 4, a thrust ring 5, a bearing 6, a shaft sleeve 7, an impeller support body 8, an outer magnetic steel assembly 9, a spacer sleeve 10, The inner magnetic steel assembly 11, the magnetic force transmission housing 12, the fixed supporting body 13 and the rotating supporting body 14 are composed.
[0024] The key component magnetic transmission housing 12 is equipped with a magnetic transmission device, which consists of m permanent magnets (m is an even number) arranged and assembled on the outer magnetic steel assembly 9 and the inner magnetic steel assembly 11 according to the rule of alternating N poles and S poles. The sleeve 10 is placed in the gap between the outer magnetic steel assembly 9 and the inner magnetic steel assembly, and there is a movement gap between the outer magnetic steel assembly 9 and the inner magnetic steel assembly, so as ...
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The invention belongs to the technical field of magnetic pumps, in particular to a low eddy current loss high-efficiency magnetic pump. The effective non-magnetic gap between the outer magnetic steel and the inner magnetic steel can be reduced, and the magnetic flux density of the air gap between the inner and outer magnetic steel of the magnetic pump can be increased. It includes a magnetic pump body; it is characterized in that the magnetic pump body is composed of a pump body, a static ring, an impeller, a sealing ring, a thrust ring, a bearing, a shaft sleeve, an impeller support body, an outer magnetic steel assembly, a spacer sleeve, and an inner magnetic steel It is composed of an assembly, a magnetic transmission case, a fixed support body and a rotating support body; the magnetic transmission case is equipped with a magnetic transmission device, and the magnetic transmission device is composed of an even number of permanent magnets, which are arranged and assembled on the outer magnetic field according to the rule of alternating N poles and S poles. On the steel assembly and the inner magnetic steel assembly, the spacer sleeve is placed in the gap between the outer magnetic steel assembly and the inner magnetic steel assembly, and there are gaps between the outer magnetic steel assembly and the inner magnetic steel assembly. Motion gap to realize the non-contact transmission of power.
Description
technical field [0001] The invention belongs to the technical field of magnetic pumps, in particular to a low eddy current loss high-efficiency magnetic pump. Background technique [0002] The magnetic pump is a new type of pump that uses the magnetic transmission of permanent magnets to realize the non-contact transmission of torque. When the motor drives the outer magnetic steel of the magnetic coupler to rotate, due to the action of the magnetic field, the inner magnetic steel rotates synchronously, and the pump impeller and the inner magnetic steel are coaxially arranged, so that the impeller and the motor rotate synchronously, and the medium is sealed and transported. In order to isolate the transmission medium from the external environment, an isolation sleeve is installed between the inner and outer magnets. The isolation sleeve is a thin shell structure made of metal material, in the shape of a "top hat". [0003] In the prior art, the isolation sleeve is made of no...
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IPC IPC(8): F04D29/04F04D29/044F04D29/02F04D13/06
CPCF04D29/04F04D29/044F04D29/026F04D13/06
Inventor 李明安跃军邓文宇齐丽君王光玉孔祥玲宿泽达郑雅良苗乐平高北荣袁静唐志英
Owner SHENYANG POLYTECHNIC UNIV