A self-priming pump without water

Abstract

The invention provides a novel dry starting self-sucking pump, which comprises a liquid storage chamber, outer self-sucking chamber and inner self-sucking chamber which are sequentially arranged fromoutside to inside, wherein the inner self-sucking chamber is provided with a main shaft and three-leaf partition plates which are rotatably mounted on the main shaft, the top of the leaf of each partition plate is tightly jointed with the inner wall surface of the inner self-sucking chamber, three identical contraction grooves are arranged on the outer side of the inner self-sucking chamber, a spring and a separation baffle are arranged in each contraction groove, one side of each contraction groove is provided with an exhaust pipe, and the other side of the contraction groove is provided witha suction pipe, the exhaust pipe is communicated with the liquid storage chamber and the outer self-sucking chamber, the suction pipe is communicated with the inner self-sucking chamber and the outerself-sucking cavity, the bottom end of the outer self-sucking chamber is provided with a pump inlet pipe along the tangential direction, a check valve is arranged in the pump inlet pipe. According tothe invention, the problem that water is needed when the self-sucking pump is firstly started is solved, the dry starting of the self-sucking pump is achieved, the self-sucking pump can work normallywhen started again, nine times of self-sucking can be completed when the three-leaf plates rotate for one circle, the working efficiency is obviously improved, and the operation process is greatly simplified.

Description

technical field [0001] The invention relates to a self-priming pump, in particular to a non-water starting self-priming pump. Background technique [0002] In addition to the self-priming pump that needs to be filled with water before the first start, the self-priming pump can discharge the air in the pump cavity through its own structure, or use an external auxiliary vacuum pump to extract the air in the pump to achieve self-priming. Therefore, the operation process is obviously more convenient than other types of pumps, so it is widely used in agricultural irrigation, fire fighting and disaster relief and other fields. However, in an emergency, filling the self-priming pump that starts for the first time greatly prolongs the start-up time and seriously restricts the working efficiency of the self-priming pump. The external auxiliary vacuum pump not only causes loud noise, but also makes the transportation of the whole unit difficult, reduces the overall mobility, and is e...

AI Technical Summary

Problems solved by technology

However, in an emergency, filling the self-priming pump that starts for the first time greatly prolongs the start-up time and seriously restricts the working efficiency of the self-priming pump.

The external auxiliary vacuum pump not only causes a lot of noise, but also makes the transportation of the whole unit difficult, reducing the overall mobility, and supporting at least two motors, which increases energy consumption

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