Frameless permanent magnet synchronous motor direct-drive centrifugal pump

A technology for permanent magnet synchronous motors and centrifugal pumps, applied to non-variable pumps, components of pumping devices for elastic fluids, pumps, etc., can solve problems such as low transmission efficiency, complex structure, and inconvenient maintenance, and achieve Reduce the transmission chain, improve transmission efficiency, and facilitate maintenance

Pending Publication Date: 2017-09-12
湖北富升科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Existing centrifugal pumps mostly use motors to drive impellers through couplings or belts, which have disadva

Method used

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  • Frameless permanent magnet synchronous motor direct-drive centrifugal pump
  • Frameless permanent magnet synchronous motor direct-drive centrifugal pump

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0031] Such as figure 1 and 2 As shown, a frameless permanent magnet synchronous motor direct-driven centrifugal pump according to an embodiment of the present invention includes a pump body 1, an impeller chamber is formed in the inner cavity of the pump body 1, and the water inlet of the pump body 1 An exhaust valve 2 is arranged at the place, and a conjoined seat 3 is fixedly installed above the pump body 1 .

[0032] The inner cavity of the combined seat 3 forms a circulating water cham...

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Abstract

The invention discloses a frameless permanent magnet synchronous motor direct-drive centrifugal pump. The frameless permanent magnet synchronous motor direct-drive centrifugal pump comprises a pump body. An impeller chamber is formed in an inner cavity of the pump body. The position of a water inlet of the pump body is provided with an exhaust valve. A connected base is fixedly arranged above the pump body. A circulation water chamber and a bearing chamber are formed in an inner cavity of the connected base. A cooling water pipe is arranged on the outer circumference of the connected base. A frameless permanent magnet synchronous motor is arranged above the connected base. A dustproof cover plate is arranged at the upper portion of the frameless permanent magnet synchronous motor. A power shaft is arranged at the middle portion of the pump body and the middle portion of the connected base, a pump cover is arranged between the pump body and the connected base, and the power shaft is fixed to the connected base through a bearing. An encoder is arranged at the top end of the power shaft. An impeller is arranged in the impeller chamber and fixed to the power shaft through the arrangement of an impeller nut. A mechanical seal is arranged among the impeller chamber, the circulation water chamber and the bearing chamber. The frameless permanent magnet synchronous motor direct-drive centrifugal pump has the beneficial effects that design is reasonable, the structure is simple, and the transmission efficiency is improved; motor running is controlled in a program digital manner, electricity consumption is low, noise is low, and maintaining is convenient.

Description

technical field [0001] The invention relates to the field of centrifugal pump equipment, in particular to a centrifugal pump directly driven by a frameless permanent magnet synchronous motor. Background technique [0002] Centrifugal pump is a general hydraulic machine, its internal flow has always been a matter of great concern to pump designers, because the quality of the flow in the pump directly affects the performance of the pump. The internal flow of the centrifugal pump impeller is a very complex uniform three-dimensional turbulent flow. At the same time, due to the influence of the rotation and the curvature of the blade surface, there are also phenomena of deflow, backflow and secondary flow. It is a difficult experimental research and numerical analysis in fluid engineering. One of the computational problems. [0003] As early as the 1950s, some experts and scholars began to try to use numerical calculation methods to predict the flow in the impeller. However, th...

Claims

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Application Information

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IPC IPC(8): F04D13/06F04D15/00F04D29/044F04D29/66H02K7/14H02K5/10
CPCH02K5/10H02K7/14F04D13/0613F04D15/0066F04D29/044F04D29/669
Inventor 黄煜林熊幼斌廖桂芳
Owner 湖北富升科技有限公司
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