Microorganism index control method for quality of ozonization cooling water circulation
A technology for cooling circulating water and control methods, which is applied in water treatment parameter control, oxidized water/sewage treatment, chemical instruments and methods, etc. Fast response and adjustment, better results
Active Publication Date: 2009-09-09
SHANGHAI LIGHT IND RES INST
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Problems solved by technology
It is an operational empirical estimate of the cycle end point under stable working and environmental conditions, but POSI cannot reflect whether the water quality of the circulating water needs to be adjusted in time during the variable operation process (for example, when the supplementary water When the water quality changes during operation), there are certain defects in using POSI index as automatic monitoring
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[0032] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0033] figure 1 It is a schematic diagram of the cooling circulating water system adopting the control method of the present invention. see figure 1 As shown, the entire circulating cooling water system mainly includes a cooling tower 10 , a sump 11 and a refrigeration unit 12 . The flow direction of the circulating water is: from the sump 11 to the refrigeration unit 12, after contacting the hot surface of the refrigeration unit, it flows to the cooling tower 10, and then flows back to the sump 11 after being sprayed. When the water level in the sump 11 is lower than a certain water level due to the discharge, evaporation or drift of the circulating water, the valve 114 is controlled by the float level controller 112 to realize the automatic replenishment of the circulating water from the replenishing water source 61 . In addition, at the ...
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The present invention discloses microbial index controlling method for detecting and controlling the water quality in water cooling and circulating system, which includes one water collecting basin with one draining valve in the bottom, one cooling tower, one refrigerator set and one ozone generator for injecting ozone. The controlling method includes: detecting the bacteria number and biological slime, inputting the detected data to one database, comparing the detected data to the reference values in the database to judge the bacterial state of water, outputting one ozone controlling signal to the ozone generator based on the judgment result, and comparing the detected biological slime value to the reference value and outputting one water draining signal to the draining valve if necessary.
Description
technical field [0001] The invention relates to a method for treating circulating cooling water, in particular to a method for controlling microbial indicators of cooling circulating water treated with ozone. Background technique [0002] Scaling and corrosion are the most common problems in heat exchange equipment systems using circulating cooling water, which will endanger the operation of the equipment. The open cooling tower continuously evaporates water to take away heat during the working process, which not only concentrates many substances in the water, but also continuously brings pollutants, dust, microorganisms, etc. in the atmosphere into the water. If the water quality of the circulating cooling water cannot be controlled, It will soon reduce the working efficiency of heat exchange equipment (various types of refrigerators, air compressors, etc.), blockage of pipelines, greatly increase energy consumption, cause corrosion of equipment, shorten service life, and c...
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IPC IPC(8): C02F1/78C02F1/50
CPCC02F1/78C02F2209/36
Inventor 沙尚之
Owner SHANGHAI LIGHT IND RES INST