Double-blade single-shaft centrifugal pump

Abstract

The invention relates to the technical field of centrifugal pumps, in particular to a double-blade single-shaft centrifugal pump. The double-blade single-shaft centrifugal pump comprises a base, a driving motor and a shell. The bottom of the driving motor is fixedly connected with the right side of the top of the base. The bottom of the shell is fixedly connected with the left side of the top of the base. A water inlet pipe is fixedly connected to the center of the left side of the shell. A water outlet pipe is fixedly connected to the center of the right side of the top of the shell. A fixing frame is fixedly connected between the driving motor and the shell. The output end of the driving motor is fixedly connected with a first rotating shaft. A connecting frame is fixedly connected to the center of the right side of the shell. According to the double-blade single-shaft centrifugal pump, through cooperative use of a detection rod, a push block and a control button, the driving motor can be automatically turned off when the centrifugal pump is blocked and the internal pressure intensity of the centrifugal pump is too large, and therefore the probability that the centrifugal pump is damaged can be effectively reduced; and meanwhile, when the centrifugal pump leaks water, the centrifugal pump is automatically turned off, and waste of water resources is reduced.

Description

technical field [0001] The invention relates to the technical field of centrifugal pumps, in particular to a double-vane single-shaft centrifugal pump. Background technique [0002] A centrifugal pump refers to a pump that delivers liquid by the centrifugal force generated when the impeller rotates. Before the pump is started, the pump casing and the suction pipe must be filled with water, and then the motor is started to drive the pump shaft to drive the impeller and water to rotate at high speed. Centrifugal movement occurs, thrown to the outer edge of the impeller, and flows into the pressure water pipeline of the water pump through the flow channel of the volute pump casing. [0003] Existing patent (notification number: CN110821842B) a working wheel and a centrifugal pump for a centrifugal pump, discloses a working wheel and a centrifugal pump for a centrifugal pump, including a servo motor, the left side of the servo motor is provided with Working wheel, said working ...

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Problems solved by technology

[0004] In the sandy basin of the Yellow River in my country, centrifugal pumps are used to pump water for farmland irrigation. However, due to the large amount of sediment in the river water, the centrifugal pump is prone to blockage during the pumping process. After the centrifugal pump is blocked, the water flow Under the action of the centrifugal force generated by the high-speed operation of the centrifugal pump, it is pumped into the interior of the centrifugal pump, resulting in an increase in the internal pressure of the centrifugal pump, which is likely to cause damage to the centrifugal pump and reduce the service life of the centrifugal pump. At the same time, the connection between the centrifugal pump and the water pipe Water leakage is prone to occur everywhere. During the working process of the centrifugal pump, the staff cannot find the water leakage in time, which leads to the waste of water resources and more serious water leakage.

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