Multi-chamber constant-flow diaphragm pump

Abstract

The invention discloses a multi-chamber constant-flow diaphragm pump provided with at least three work cavities. When outer power is input, an eccentric shaft is driven to rotate, the eccentric shaftrotates, accordingly, an inclined disc is driven to beat a plunger, gradual stretching or compressing is formed on a work cavity of a main diaphragm installed in a connected manner, the seal space ofthe work cavities of a pump body is in a suction or compression state, a work cavity diaphragm in the pump body conducts the opening and closing action under the action of vacuum or pressure, fluid issucked in or discharged through the work cavities, and accordingly the work process of the pump is finished. Furthermore, since the work cavities of the pump independently finish the work process, various work cavities gradually conduct work, the value of flow discharged by the work cavities is the constant value, the fluid flow peak valley values in the work process are overlapped, fluid flow pulse is eliminated, and after flow reaches a first containing cavity of a pump lower base and is gathered, the flow discharged through a second circulation hole is stable and constant, the purpose of constant-flow output of the multi-chamber constant-flow diaphragm pump is achieved, the fluid discharging flow is kept, the fluid flow discharged by the diaphragm pump is balanced, and the requirementof users for constant flow of output fluid is met.

Description

technical field [0001] The invention relates to the technical field of pumps, in particular to a multi-chamber constant-flow diaphragm pump. Background technique [0002] Diaphragm pump is a special positive displacement pump. Under the control of an external actuator, the diaphragm in the pump body moves back and forth to change the volume between the diaphragm and the wall of the pump body, thereby producing the effect of sucking and discharging fluid. . The working principle of common diaphragm pumps is roughly the same, and the flow output is generated through the reciprocating movement of the diaphragm. [0003] However, most of the diaphragm pumps on the market use double-chamber working chambers. When working, when one working chamber discharges fluid, the other working chamber sucks in fluid, and the flow of fluid discharged from the working chamber is intermittent. Generally, it is in the state of peak and valley waves, and the flow rate of the fluid discharged by...

AI Technical Summary

Problems solved by technology

[0003] However, most of the diaphragm pumps on the market use double-chamber working chambers. When working, when one working chamber discharges fluid, the other working chamber sucks in fluid, and the flow of fluid discharged from the working chamber is intermittent. The flow rate of the fluid discharged by the diaphragm pump is pulsating, which cannot meet the user's demand for a constant value of the discharged fluid flow rate.

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