Pump motor cooling noise reduction device based on pulsating heat pipe

A pulsating heat pipe and motor cooling technology, applied in the direction of cooling/ventilation devices, electromechanical devices, electrical components, etc., to achieve the effect of detachable structure, convenient maintenance, and efficient cooling treatment
CN106787451AInactive Publication Date: 2017-05-31JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2017-05-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a pump motor cooling noise reduction device based on a pulsating heat pipe principle. The main structure of the pump motor cooling noise reduction device lies in that a pulsating heat pipe cooling device in spatial arrangement is designed on the shell of a motor; a pulsating heat pipe mainly comprises a spatially warped multi-bend closed passage, wherein the cooling section of the passage is arranged in a water tank, the included angle between the water tank and the horizontal plane is 30 to 90 degrees, and an inlet and an outlet are formed in the water tank, so that circulation and constant-temperature control can be realized. The heating section of the pulsating heat pipe is directly adhered onto the outer surface of a motor shell, the position of a condensation section is always on the upper side of the heating section, and an included angle of 30 to 90 degrees can be presented with the horizontal plane. Moreover, the cross section of the closed passage can be designed into circular and rectangular cross sections. The device is to carry out efficient cooling treatment on the motor, and an existing motor with a fan cooling structure is replaced, so that low noise operation is realized. The structure has the characteristics that the device is detachable and is convenient to maintain.
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Description

technical field

[0001] The invention relates to a motor cooling and noise reduction device, belonging to the technical field of pulsating heat pipe applications. Background technique

[0002] Centrifugal pumps are widely used in urban water supply and drainage, community water supply, industrial water systems and other fields. However, as people face long-term noise pollution, which affects physical and mental health and safe production, low-noise operation has become the development trend of centrifugal pumps. A lot of research has been done on the noise of centrifugal pumps, which are mainly divided into two types: hydraulic noise and mechanical noise. The hydraulic noise is mainly due to the unsteady flow in the flow-passing parts of the centrifugal pump during operation, which causes cavitation, Secondary flow etc. The mechanical noise is mainly due to the fan cooling the motor. Mechanical noise caused by the misalignment of the motor shaft and the centrifugal pump sha...

Claims

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