Liquid level control system and method

Abstract

The invention relates to the technical field of water treatment, and discloses a liquid level control system and method. The liquid level control system comprises a branch tank; a master tank, whichis used for collecting liquid in the branch tank, and the liquid level of which is lower than that of the branch tank; a siphon, through which the branch tank is communicated with the master tank; anda liquid discharge pump, through which the branch tank is communicated with the master tank. Waste water in the branch tank can be discharged into the master tank under the combined action of the siphon and the liquid discharge pump, so that the reliability of the whole system is improved; when the waste water in the branch tank is at a lower liquid level, the waste water is discharged through the siphon principle, so that the waste of energy sources and the loss of the liquid discharge pump are reduced; when the waste water in the branch tank is at a relatively high liquid level, water is discharged through the liquid discharge pump and the siphon together, so that the water discharge amount is increased, and the waste water in the branch tank can be kept within a certain liquid level range; and moreover, if water cannot be drained through the siphon principle due to local air intake of the siphon, the liquid discharge pump can also discharge water and keep the liquid level in time.

Description

technical field [0001] The invention relates to the technical field of water treatment, and discloses a liquid level control system and method. Background technique [0002] Manufacturing enterprises generally include multiple processing workshops, and each workshop will generate a certain amount of wastewater during its production and operation. Usually, the wastewater from each workshop will be discharged to the sub-wastewater pool of each workshop first; the sub-wastewater pool has a certain buffering effect, and the wastewater will be discharged to a general wastewater pool for subsequent treatment after preliminary precipitation in the sub-wastewater pool. [0003] In the prior art, generally, the wastewater in the sub-wastewater pool is discharged to the main waste water pool through a drainage pump. Moreover, in actual operation, the wastewater in the waste water tank needs to maintain a certain liquid level so that the wastewater cannot overflow and can undergo prel...

AI Technical Summary

Problems solved by technology

However, in the prior art, the liquid level of the waste water in the waste water pool can only be adjusted by frequently starting and stopping the drainage pump.

[0004] Among them, the long-term use of the drainage pump wastes energy, and the frequent start and stop of the drainage pump greatly shortens the life of the drainage pump, making the maintenance cost of the existing drainage system of the waste water pool very high

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