Electrochemical water scale removing device and method for removing water scale

An electrochemical and scaling technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of reducing descaling ability, increasing energy consumption, and increasing resistance

Active Publication Date: 2014-12-17
银海洁环保科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned cathode scale is deposited to a certain thickness before cleaning, whic

Method used

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  • Electrochemical water scale removing device and method for removing water scale
  • Electrochemical water scale removing device and method for removing water scale
  • Electrochemical water scale removing device and method for removing water scale

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Install two electrochemical scale removal devices in the cooling circulating water system in the form of side flow, and the circulating water volume is 1200m 3 / h, using figure 1 There are two sets of electrochemical scale nucleation unit shown, the total processing capacity of this electrochemical scale nucleation unit is 40m 3 / h, the water to be treated at a temperature of 15-35°C enters the tank body from the water inlet of the tank body, the tank body is provided with a diaphragm, and the diaphragm divides the tank body into a cathode chamber and an anode chamber, and the rotating cathode is located at In the cathode chamber, the diameter of the rotating cathode is 500 mm, the length is 800 mm, and the rotational angular velocity of the rotating cathode is 10 rpm; the anode is in the anode chamber, and the rotating cathode, the anode, the aqueous solution in the tank and the electrolysis power supply form a closed current loop; start the electrolysis power supply ...

Embodiment 2

[0096] Install two electrochemical scale removal devices in the cooling circulating water system in the form of side flow, and the circulating water volume is 1150m 3 / h, using figure 2 There are two sets of electrochemical scale nucleation unit shown, the total processing capacity of this electrochemical scale nucleation unit is 40m 3 / h, the water to be treated at a temperature of 20-40°C enters the tank body from the water inlet of the tank body, and the rotating cathode, anode, aqueous solution in the tank body and electrolysis power supply form a closed current loop, and the diameter of the rotating cathode is 500mm, the length of the rotating cathode is 800mm, and the rotational angular velocity of the rotating cathode is 30rpm; start the electrolysis power supply, the current is 40A, and the electrochemical reaction begins to occur near the anode and the rotating cathode; near the anode, water electrolysis produces oxygen and oxygen free radicals, Hydrogen peroxide an...

Embodiment 3

[0103] Four electrochemical scale removal devices are installed in the cooling circulating water system in the form of side flow, and the circulating water volume is 3000m 3 / h, using figure 1 There are four sets of electrochemical scale nucleation unit devices shown, and the total processing capacity of this electrochemical scale nucleation unit is 100m 3 / h, the water to be treated at a temperature of 25°C enters the tank body from the water inlet of the tank body, and the tank body is provided with a diaphragm, which divides the tank body into a cathode chamber and an anode chamber, and the rotating cathode is located in the cathode chamber Among them, the diameter of the rotating cathode is 500mm, the length is 800mm, and the rotational angular velocity of the rotating cathode is 15rpm; the anode is in the anode chamber, and the rotating cathode, the anode, the aqueous solution in the tank and the electrolysis power supply form a closed current loop; start the electrolysis...

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Abstract

The invention provides an electrochemical water scale removing device which comprises a water scale crystal nucleus generation unit and a water scale crystal nucleus growth and separation unit, wherein the water scale crystal nucleus generation unit is used for electrochemical water treatment. The water scale crystal nucleus growth and separation unit is used for growing crystal nucleuses generated by the water scale crystal nucleus generation unit and separating water scale and comprises a filtering area, an inclined plate settling area and a sludge discharge bucket, the filtering area is provided with a filtering screen and an outlet, the inclined plate settling area is positioned below the filtering area, communicated with the filtering area and provided with an inclined plate, the sludge discharge bucket is positioned below the inclined plate settling area, and a cavity is formed between the inclined plate settling area and the sludge discharge bucket and provided with an inlet, so that water scale crystal nucleus containing water generated by the water scale crystal nucleus generation unit enters the cavity along the tangential direction and is sequentially subjected to cyclone separation and rectification in the cavity. The invention further provides a method for removing the water scale according to the electrochemical water scale removing device.

Description

technical field [0001] The invention belongs to the field of scale removal devices, in particular to an electrochemical scale removal device and a scale removal method. Background technique [0002] As a clean scale and algae control technology, electrochemical technology has been practically applied for many years in the treatment of cooling circulating water. Electrochemical descaling has many advantages: it is environmentally friendly and does not cause environmental pollution; it does not require disposal and dosing of chemicals; it can realize automation and more convenient process control. The main difficulty is that most of the scale is deposited on the surface of the cathode, resulting in an increase in resistance and a decrease in current efficiency. Several cathodic scaling methods currently in use include polarity inversion and ultrasonic cleaning. [0003] The Chinese patent with the application number 200620032114.5 discloses an electrochemical reactor operate...

Claims

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Application Information

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IPC IPC(8): C02F9/06
Inventor 章明歅章俊杰
Owner 银海洁环保科技(北京)有限公司
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