Multi-stage centrifugal pump with self-suction function
A centrifugal pump, functional technology, applied to components, pumps, and pump control of elastic fluid pumping devices, can solve problems such as bulky, poor operation stability, unreasonable layout, etc., and achieve accurate assembly position and concentricity The effect of good degree and reasonable layout
Pending Publication Date: 2020-05-15
ZHEJIANG RIJING PUMP IND CO LTD
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Problems solved by technology
[0002] The existing centrifugal pumps do not have self-priming function, the overall function is relatively single, and the degree of automatic control is low. In addition, the existing centrifugal pumps also have the following defects: 1. The assembly concentricity between the mechanical seal structure and the rotating shaft is low, and the operation is stable 2. The bearing on the rotating shaft is easy to loosen with the bearing groove in the motor casing, resulting in unstable operation of the centrifugal pump; 3. The layout of various functional components is unreasonable, resulting in an unattractive overall appearance, uncompact structure, and bulky huge
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[0038] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0039] see Figure 1 to Figure 16 , the present invention provides a multistage centrifugal pump with self-priming function, comprising a motor 1 and a pump body 2, the pump body 2 is located at the front end of the motor 1, a circuit control device 3 is arranged on the top of the motor 1, and the pump body 2 includes the pump casing 4, the multistage impeller 6 connected to the rotating shaft 5 of the motor 1 arranged in the pump casing 4, the water inlet cover 7 arranged at the inlet position of the multistage impeller 6 and the outlet position of the multistage impeller 6 The water outlet cover 8, the water inlet chamber 9 formed by the water inlet cover 7 is connected with the water inlet 10 of the pump body 2, the water outlet chamber 11 formed by the water outlet cover 8 is connected with the water outlet 12 of the pump body 2, and th...
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The invention discloses a multi-stage centrifugal pump with a self-suction function. The multi-stage centrifugal pump comprises a motor and a pump body, wherein the pump body is located at the front end of the motor, a circuit control device is arranged at the top of the motor, the pump body includes a pump housing, a multi-stage impeller, a water inlet cover and a water outlet cover, the multi-stage impeller is arranged within the pump housing and is connected with a rotating shaft of the motor, the water inlet cover is arranged at an inlet position of the multi-stage impeller and the water outlet cover is arranged at an outlet position of the multi-stage impeller; a water inlet chamber formed by the water inlet cover is in communication with a water inlet of the pump body, a water outletchamber formed by the water outlet cover is in communication with a water outlet of the pump body, a backflow hole is formed between the water outlet chamber and the water inlet chamber, the backflowhole is located at the bottom of the water outlet chamber, and a self-suction valve is arranged in the backflow hole. The multi-stage centrifugal pump with the self-suction function realizes the self-suction function and improves the overall performance of the centrifugal pump.
Description
technical field [0001] The invention relates to a multistage centrifugal pump with self-suction function. Background technique [0002] The existing centrifugal pumps do not have self-priming function, the overall function is relatively single, and the degree of automatic control is low. In addition, the existing centrifugal pumps also have the following defects: 1. The assembly concentricity between the mechanical seal structure and the rotating shaft is low, and the operation is stable 2. The bearing on the rotating shaft is easy to loosen with the bearing groove in the motor casing, resulting in unstable operation of the centrifugal pump; 3. The layout of various functional components is unreasonable, resulting in an unattractive overall appearance, uncompact structure, and bulky huge. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a multi-stage centrifugal pump with self-priming function, which realizes the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D9/02F04D29/00F04D29/10F04D29/58F04D29/62F04D29/42F04D15/00F04D1/08
CPCF04D1/08F04D9/02F04D15/00F04D29/007F04D29/106F04D29/4293F04D29/5806F04D29/5813F04D29/628
Inventor 莫利波蔡海军赵孔胜吴海军
Owner ZHEJIANG RIJING PUMP IND CO LTD