Liquid level automatic maintenance device and method

Abstract

The present invention provides a liquid level automatic maintenance device and method. The device comprises a container configured to hold liquid; a sealing fluid infusion device configured to hold supplement liquid; a breather pipe, wherein the port of one end of the breather pipe is located at the target liquid level of the container, and the other end of the breather pipe is communicated with the top end of the sealing fluid infusion device; a water pump; a discharging tube which has one end stretching into the liquid surface in the sealing fluid infusion device and has the other end connecting with the water inlet of the water pump; and a water supplement tube which has one end connecting the water outlet end of the water pump and has the other end connected with the container. When the liquid surface in the container is lower than the target liquid level, the water pump is configured to suck the air from one end of the breather pipe into the sealing fluid infusion device, the supplement liquid with the same amount in the sealing fluid infusion device is pumped through the discharging tube and is flowed into the container from the water supplement tube so as to realize that the liquid level in the container maintains at the target liquid level. The structure is simple, the usage is convenient, and the stability and the safety are high.

Description

technical field [0001] The invention relates to the control of liquid level height, in particular to an automatic liquid level maintenance device and method. Background technique [0002] In industrial production or experiments, it is often necessary to maintain the liquid level in the container at a certain height, but the evaporation, volatilization or consumption of the liquid may cause the liquid level to drop, and it is necessary to replenish the liquid in time to automatically maintain the liquid level. [0003] At present, there are more commonly used technologies for automatically maintaining the liquid level. Generally, a liquid level sensor is used to detect the liquid level, and then the control circuit controls the opening of the water pump or valve to replenish the liquid in the container. The structure is often complex, and the stability of electronic products cannot be guaranteed. Once a problem occurs in the detector or control part, it may not be able to eff...

AI Technical Summary

Problems solved by technology

The structure is simple, but the liquid reservoir of this scheme is connected to the atmosphere. Once the water pump cannot pump the excess liquid back into the liquid reservoir, a large amount of liquid in the liquid reservoir will flow into the container, causing overflow; and it contains a large amount of liquid The liquid reservoir must be placed at a height higher than the target liquid level, which is likely to cause safety hazards

Therefore present automatic maintenance liquid level technology all has certain defect

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