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进口射流式自吸离心泵美国阿卡迪亚品牌

进口射流式自吸离心泵Product Description: The utility model comprises a pump shell internally provided with a pump cavity, a jet pipe located in the pump cavity and a water pressure chamber. The jet pipe is provided with a return hole, which connects the jet pipe and the pump cavity. The water pressure chamber drives the fluid in the pump cavity to enter the flow pipe from the return hole.进口射流式自吸离心泵 The pump shell is provided with a valve, which can close or open the return hole. The backflow hole can be blocked under large flow to improve cavitation. characteristic: It is necessary to reduce the diameter of the jet pipe to obtain a larger jet velocity, so as to obtain a higher negative pressure to realize self-priming. When the self-priming is completed, the liquid in the cavity still enters the jet pipe from the reflux hole. If the suction lift is high, when the jet self-priming centrifugal pump works under large flow, the flow velocity at the jet pipe is high, which is very prone to cavitation, resulting in large noise and reducing the user experience. At the same time, the high flow rate in the jet pipe will also bring large friction loss and affect the efficiency of the pump. Principle: The utility model relates to a jet type self-priming centrifugal pump with a valve, 进口射流式自吸离心泵which comprises a pump shell internally provided with a pump cavity, a jet pipe located in the pump cavity and a water pressure chamber, the jet pipe is provided with a return hole, the return hole connects the jet pipe and the pump cavity, the water pressure chamber drives the fluid in the pump cavity to enter the flow pipe from the return hole, the pump shell is provided with a valve, and the valve can close or open the return hole.

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