Water level detecting circuit for water treatment equipment

Abstract

The invention discloses a water level detecting circuit for water treatment equipment. The water level detecting circuit is provided with a detecting circuit, a main processing circuit, a relay circuit and a power supply circuit, wherein the detecting circuit is arranged in the water level detecting area of the water treatment equipment and connected with the main processing circuit; the main processing circuit is connected with the relay circuit, and the power supply circuit is respectively connected with the detecting circuit, the main processing circuit and the relay circuit; detecting wires connected with the main processing circuit and used for detecting high water level, middle water level and low water level and a capacitor C1 are arranged in the detecting circuit, the detecting wire for detecting the middle water level is further provided with a voltage stabilizing diode D1, the detecting wire for detecting the high water level and the detecting wire for detecting the middle water level are jointly connected to the first end of the capacitor C1, and the detecting wire for detecting the low water level is connected to the second end of the capacitor C1. The water level detecting circuit has the advantages that the detecting wires for detecting the high water level, the middle water level and the low water level are used for detecting the water level, a user can safely and fast learn about the current water level condition, and the water level can be reasonably controlled.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a water level detection circuit for water treatment equipment. Background technique [0002] Water treatment methods include physical treatment and chemical treatment. Human beings have used water treatment methods for many years. Physical methods include the use of various filter materials with different pore sizes, and the use of adsorption or barrier methods to exclude impurities in water. The most important adsorption method is to use activated carbon for adsorption. The barrier method is to pass water through the filter material, so that the larger impurities cannot pass through, and then obtain cleaner water. In addition, the physical method also includes the precipitation method, which is to let the impurities with a small specific gravity float on the water surface to remove them, or the impurities with a large specific gravity to settle down, and then obtain the...

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Problems solved by technology

[0003] With the continuous improvement of human life, the eutrophication of water bodies, ammonia nitrogen, phosphorus and other nutrient salts, and the step-by-step improvement of the National Environmental Protection Agency's sewage discharge standards, the traditional "primary treatment" and "secondary treatment" water treatment technology has been used for many years. And equipment, it has been difficult to adapt to the treatment requirements of today's high turbidity and high concentration sewage, and the treatment process is long, the system is huge, and it also emits a lot of odor

If operators want to meet the latest discharge standards, they need to invest a lot of money to expand the original sewage treatment system, increase the use of land area, high sewage treatment equipment and high post-maintenance costs. However, the traditional sewage depth Treatment of regeneration and reuse technology systems (such as activated carbon filtration, microporous filtration, permeable membrane purification and other technical systems) has high investment and high post-maintenance and operation costs, which are unaffordable for too many operators

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