Marine domestic sewage turbidity detection device with self-cleaning function and detection method

Abstract

The invention discloses a marine domestic sewage turbidity detection device with a self-cleaning function. One end of a bypass pipe is connected with a liquid inlet of a first electromagnetic valve while the other end of the same is used for being connected with a domestic sewage discharging pipe, a liquid outlet of the first electromagnetic valve is communicated with a sewage inlet of a glass storage pipe, a residue discharging port of the glass storage pipe is connected with the input end of a second electromagnetic valve through a residue discharging pipe, the output end of the second electromagnetic valve is a discharging port, the glass storage pipe is provided with a piston, a piston rod through hole is formed in the rear end of the glass storage pipe, one end of the piston rod is fixedly connected with the rear end of the piston while the other end of the same extends out of the piston rod through hole, and a turbidity sensor is arranged on the side wall of the glass storage pipe. The device has the self-cleaning function and can accurately measure domestic sewage turbidity.

Description

technical field [0001] The invention relates to the technical field of on-line detection of ship domestic sewage, in particular to a device and method for detecting turbidity of ship domestic sewage with a self-cleaning function. Background technique [0002] Domestic sewage from ships is one of the main pollutants produced during the production and operation of ships. As the country strengthens the supervision of domestic sewage discharge from ships, some testing equipment and monitoring systems have been developed to effectively monitor and supervise the discharge of domestic sewage from ships. for real-time interaction. Since the ship's domestic sewage contains a lot of impurities, organic matter and microorganisms, if the photoelectric sensor is placed in the water for a long time, it will inevitably cause microorganisms and suspended matter to attach to the transmitting end and receiving end of the photoelectric sensor, affecting its light transmittance, and eventually...

AI Technical Summary

Problems solved by technology

However, the cleaning agent is blown in by high-pressure air. As a turbid liquid, the addition of the cleaning agent will inevitably increase the turbidity of the liquid and affect the measured value.

Secondly, the blowing of high-pressure air will generate a large number of bubbles in the liquid, which are not conducive to the transmission of light and affect the measurement accuracy

In addition, the introduction of high-pressure air requires the establishment of a complex gas supply system, which puts forward higher requirements for airtightness and pressure resistance, resulting in a significant increase in equipment costs, which is not conducive to popularization

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