Intelligent domestic sewage pretreater

Abstract

The invention discloses an intelligent domestic sewage pretreater. The intelligent domestic sewage pretreater comprises a cabinet body and a crushing discharge pump, wherein the inner side plate surface of a wall plate of the cabinet body is plated with a zinc coating; the zinc coating is coated with an epoxy asphalt paint layer; the outer side plate surface of the wall plate of the cabinet body is coated with an anti-corrosion primer layer and an anti-corrosion finish paint layer; three liquid level controllers are arranged on the cabinet body at intervals in the height direction; a liquid level sensor is fixedly arranged in a pipe cavity of a sensor guide pipe; the sensor guide pipe is movably sleeved with a liquid level floating ball; a liquid level magnet is fixedly installed in a ballcavity of the liquid level floating ball; a liquid level window is arranged on the cabinet body; the liquid level window comprises mirror surface glass and visual glass; the mirror surface glass andthe visual glass are clamped at the position of a wall plate window hole of the cabinet body through a window clamping plate; and a fluorescent floating ball which is floating is arranged in a clamping cavity formed by the mirror surface glass and the visual glass. The intelligent domestic sewage pretreater not only has relatively good sewage corrosion resistance, but also is sensitive and reliable in liquid level detection.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a cabinet for storing, transferring and pretreating domestic sewage from ships. Background technique [0002] Sewage treatment and water resources protection are directly related to the living environment of human beings and the development of social economy, so they are widely valued by people; domestic sewage is the sewage generated in the process of human production, and it is the main source of pollution of water bodies. The discharge of domestic sewage from residents directly affects people's living environment and the degree of water pollution; the discharge of domestic sewage from ships in inland rivers and lakes will lead to the deterioration of water quality; the discharge of marine engineering equipment and domestic sewage from ships seriously affects the marine environment. These point-source domestic sewage have the characteristics of wide area, large volume,...

AI Technical Summary

Problems solved by technology

The sewage cabinet is welded by steel plates. Due to the complex composition of sewage, it is highly corrosive to the steel plates, which can easily cause corrosion and damage to the cabinet wall, which seriously affects the service life of the sewage tank.

Existing sewage storage cabinets use electrode-type liquid level controllers. This electrode-type liquid level controller has the problem that the detection electrodes are easily corroded by chemicals or scaled on the surface of the electrodes, which reduces the sensitivity and reliability of the electrodes, and even There is a short circuit or failure; and there are many mechanical connections in the float type liquid level controller, which not only has low sensitivity, but also is prone to malfunction and poor reliability.

Due to the influence of external light, it is difficult to accurately judge the water level in the cabinet through the water level window glass of the horizontal window installed on the cabinet body, which is prone to misjudgment, resulting in misoperation

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