Laser Online Turbidity Sensor for Circulating Cooling Water

Circulating water generally refers to industrial circulating cooling water. In factories, cooling water is mainly used to condense steam and cool products or equipment. The OLTU600 online laser Turbidity Analyzer developed and produced by Daruifuno is mainly a precision instrument used to detect the turbidity of industrial circulating cooling water. If the cooling effect is poor, it will affect production efficiency and reduce product yield and product quality. It may even cause production accidents. According to China's domestic standards, the regulations on the turbidity of circulating water are: for intercooled open systems, according to the requirements of the production process, the general water turbidity should be ≤20NTU; if the heat exchange equipment is plate type, finned tube type, spiral plate type, Water turbidity should be ≤10NTU. It is especially widely used for water turbidity detection of water in indirect cooling open systems. In addition, for closed cooling water systems that do not use ultrafiltration purification, or when the filtration and purification effect is not good, a Turbidity Sensor should also be used to monitor in real time whether the turbidity of the cooling water meets the usage requirements. The water quality requirements for surface water, groundwater, and seawater desalination water as supplementary water for open indirect circulating cooling water systems are that the turbidity should be less than 3NTU. The water quality requirements for recycled water as supplementary water are that the turbidity should be less than 5NTU. The measurement range of the OLTU600 online turbidity sensor is between 0.001~100NTU, and it can automatically switch the range to achieve accurate measurement of low turbidity values.

Features

The OLTU600 series low range turbidimeter adopts a compact and miniaturized design with small installation space and is conducive to integration;
660nm laser light source, high resolution and fast response speed;
A version with windows and operating buttons is available
Digital turbidity sensor supports Modbus communication protocol for easy integration

Specification

It is generally stipulated that the turbidity of an open circulating water system should be less than 20 NTU. Excessive turbidity will form dirt on the heat exchanger, causing deposition and affecting the heat exchange efficiency. At the same time, excessive turbidity will increase the mechanical energy of erosion and increase metal corrosion; Excessive turbidity will also mix with microbial metabolites to form a large amount of biological slime, which will adhere to the surfaces of pipes and heat exchangers, causing dirt deposition and underscale corrosion. Therefore, it is very necessary to use laser turbidity sensors for continuous and real-time monitoring. System problems can be discovered in time and measures can be taken to solve them.

Delfino company focuses on the research, development and production of water quality instruments. Our main products include Ph Orp Analyzer, Conductivity Analyzer, turbidity analyzer, Cod Analyzer, Dissolved Oxygen Analyzer, ammonium analyzer, chlorine analyzer, etc. 

according to our experience, usually the reasons for high circulating water turbidity are as follows:

• The water turbidity is high and the water quality is poor;
• The surrounding environment of the circulating water system is harsh and the dust content in the air is high;
• There is a leak in the circulating water system;
• The side filter is faulty;
• Microorganisms breed in circulating water;
• There are errors in analyzing laboratory data;
• Except for part of the suspended solids and slime in the circulating water system that is intercepted by the side filter, most of it sinks to the bottom of the pool and does not fall out with the sewage discharge, causing the turbidity of the circulating water to remain high.
• Some equipment in the system was put into operation for the first time, introducing external pollution sources.

Use an online turbidity analyzer for monitoring and take solutions:

• Improve water quality and strengthen water filtration;
• Improve environmental sanitation around the circulating water site;
• Cut off the source of pollution by detecting and plugging leaks, and carry out replacement, drainage, cleaning and other treatments depending on the degree of pollution;
• Backwash several times. If it still doesn't work, check the side filter and troubleshoot the problem;
• Strengthen sterilization and algae removal;
• Use the high quality turbidity sensor to measure and check the laboratory data for deviations and errors;
• Pay attention to clearing mud from towers and pools;
• Before the equipment is put into operation for the first time, necessary cleaning is carried out;

If you are interested in the online turbidity analyzer, please contact us for more specific data sheet.