Cleaning method of low-temperature multiple-effect seawater desalination evaporator
An evaporator and low-temperature technology, which is applied in the cleaning field of low-temperature multi-effect seawater desalination evaporators, can solve the problems of large consumption of chemicals, poor control, complicated procedures, etc., and achieve the effect of less consumption of medicine and good recovery.
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[0035] A large-scale low-temperature multi-effect seawater desalination plant, with a single set of water production of 12500m 3 / d, the heat transfer tube of the evaporator is made of copper alloy tube, and other parts are made of stainless steel. When operating at 100% load, the temperature of the final effect remains unchanged while the temperature of the concentrated brine of the first effect rises by 2°C, and the limit value of the maximum withstand temperature of the concentrated brine of the first effect is 66°C.
[0036] The company adopts the method of cleaning when the temperature of the concentrated brine in the first effect reaches its maximum tolerance temperature limit of 66°C. The cleaning steps are as follows:
[0037] A. Rinse with water: Remove the explosion-proof film of the evaporator to discharge the gas generated during the pickling process. Prepare an acid tank and place it near the acid connection on the suction side of the brine pump. For the seawat...
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