Generator cooled water processing and purifying apparatus and method

Abstract

The invention relates to a device and a method for treating and purifying cooling water in a dynamo. The water replenishing proportion of two paths before or after a water outlet ammonification point by condensed water fine treatment is adjusted in order that the electrical conductivity of condensed water entering a cooling water tank of the dynamo is controlled between 0.27 and 0.852 mu S / cm, thereby ensuring a copper wire bar of the dynamo in an optimal PH anticorrosive range, that is, PH is equal to between 8.0 and 8.5; and a middle water tank is arranged and communicated with a drain pipe of the water cooling tank of the dynamo from the bottom. Through adjusting the liquid level of the middle water tank, the cooling water tank of the dynamo is positioned in a safe water-level range. Through applying the device and the method, the cooling water quality of the dynamo reaches the electric power industry standard. The device and the method can ensure that the electrical conductivity is less than 2 mu S / cm, the PH reaches the copper optimal anticorrosive range of between 8.0 and 8.5 and the copper content of the cooling water in the dynamo can be less than 5 mu S / cm and is far below the need of the national standard which is not more than 40 mu S / cm.

Description

technical field [0001] The invention relates to a cooling water treatment and purification device and method, in particular to a cooling water treatment and purification device and method in a generator. Background technique [0002] 1. At present, the operation period of the small mixed bed of the generator is short [0003] The operation period of the small mixed bed of cooling water in the generator designed by the random group is short, usually ranging from 2 to 5 months; the resin after failure is usually thrown away, and it takes about 2 days to replace the new resin. During this period, the internal cooling of the generator If the water is not treated, it will bring hidden dangers to the safe operation of the unit. Replacing with new resin also requires more funds. [0004] Through on-site investigation and analysis, it is believed that the main reasons for the short operation period of the small mixed bed are: [0005] 1) The low and unadjustable pH is the main re...

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Problems solved by technology

[0005] 1) The low and unadjustable pH is the main reason for the corrosion of copper wire rods and the high copper content of the internal cooling water, and it is also one of the main reasons for the short operation period of the small mixed bed

[0006] 2) The internal cooling water tank of the generator is not sealed, and the carbon dioxide in the air continuously enters the internal cooling water system, causing the anion resin in the mixed bed to fail

[0007] 2. The pH of the inner cooling water is low

[0009] 3. The copper content of the inner cooling water is high

[0010] Due to the low pH value of the make-up water and the poor sealing of the system, the carbon dioxide in the air will accelerate the corrosion of the copper wire rod of the generator, resulting in a high copper content in the water, which even exceeds the national standard, that is, greater than 40 μg / L, resulting in power generation The copper wire rod of the machine is blocked, causing an accident

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