dsa three-dimensional electrode electrochemical water quality stabilization device and process

Abstract

The invention discloses a water quality stabilization device and technology for circulating cooling water. According to the technology, with DSA electrode electrochemical water quality stabilization as the core, the technological process of electrolysis, descaling, filtration and scale concentration is optimized to achieve water quality stabilization control over the circulating cooling water. In the electrochemical action process, raw water enters an electrolysis zone through a water distribution system for a softening reaction, Cl2 is generated at the same time to achieve effective control over the system biophase, a subsequent fiber bundle filtering system effectively shields calcium carbonate crystal nuclei and biological slime generated by the electrochemical action, and when a cathode plate scales and the electrochemical process is affected, an intermediate electrode is reversely connected to descale the cathode plate. The intermediate electrode is introduced into the technology, and thus the cathode plate is effectively descaled without affecting the service life of an anode; multiple water quality stabilization units for raw water distribution, an electrochemical reaction, biophase control, suspended solid filtration and the like are integrated, and thus the integration level of main equipment is increased; meanwhile, solid-liquid separation and sludge concentration are achieved in the main equipment, it is unnecessary to additionally arrange other equipment or devices, the mechanization degree is high, the application range is wide, the capital construction investment and the operation cost are low, the occupied area is small, and operation is easy.

Description

technical field [0001] The invention relates to a water quality stabilizing device and process, which are used to reduce the hardness of water while effectively controlling the biological stability of the system, and especially relate to a water quality stabilizing process with DSA three-dimensional electrode electrochemical treatment as the core to achieve efficient and stable operation effects. It is widely used in water quality softening and biophase control of industrial circulating cooling water, heating water, air conditioning system water, raw water of membrane treatment process and other systems. Background technique [0002] For a long time, the chemical agent method has been widely used as a traditional water quality stabilization control technology, and has achieved good results to a certain extent. There are limitations in selection and use, and high requirements for operation, maintenance and management, which cannot well adapt to the construction requirements o...

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Problems solved by technology

However, it was found in the application that this technology still has the following problems: First, because the water temperature in the bypass pipeline is lower than the water temperature on the surface of the heat exchanger, the one-time hardness removal rate of about 5% of this technology cannot really solve the scale on the surface of the heat exchanger Second, during the electrolysis process, metal salt scale deposits are continuously deposited on the cathode plate, which leads to passivation of the plate and attenuation of the treatment efficiency; thirdly, it is impossible to effectively separate the calcium carbonate crystal nuclei produced by electrolysis

[0007] To sum up, for the water quality stabilization process with scale inhibition as the core, so far there is no process that can not only achieve satisfactory treatment effect, but also maintain a long working cycle, and has a simple process, low cost, small footprint, and convenient operation. processing method

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