An electro-oxidative ozone generator

Abstract

The invention relates to an electro-oxidation ozone generator. It includes the shell that constitutes the electrolytic cell and the core component of the electrolytic electrode. The core component of the electrolytic electrode is composed of an anode membrane permeation electrode, a cathode membrane permeation electrode, and an ion exchange membrane sandwiched between the anode membrane permeation electrode and the cathode membrane permeation electrode. The membrane permeation electrode consists of a microporous plate base layer covered on the base layer and a multifunctional dynamic membrane layer on the surface of the middle layer. The cathode membrane permeation electrode is composed of a microporous plate base layer plus an intermediate layer and a device It is composed of a multifunctional dynamic film layer on the surface of the middle layer, or is composed of a microporous plate base layer and a multifunctional dynamic film layer arranged on the surface of the microporous plate base layer. It has the following characteristics: 1. Using the selective permeation function membrane to infiltrate the electrode, effectively control the penetration of the raw material liquid to the catalyst side, realize the balanced two-way permeation effect, reduce the resistance and energy consumption of the generator, and improve the efficiency. 2. The controllable internal pressure structure and self-balancing gas phase transmission channel ensure that the electrode reaction is carried out under controllable pressure, so that the gas precipitated from the anode has an ozone concentration of > 20%, and the ozone generation efficiency is high. Third, the equipment is simple to manufacture and low in cost.

Description

technical field [0001] The invention belongs to an electrochemical oxidation ozone generation device, in particular to an electro-oxidation ozone generator with a controllable internal pressure structure and a dynamic catalytic film layer at the gas generation part. Background technique [0002] Using water or water-based electrolyte as raw material, an ozone-oxygen mixed gas with a certain concentration can be obtained at the anode through an electrolysis device (ozone generator). Compared with the corona method, the electrochemical method has the characteristics of low voltage, high ozone concentration, and the generated gas does not contain harmful components such as NO3, so it is widely used in drinking water treatment, medical sanitation, sewage treatment, industrial bleaching, etc. There are obvious advantages in application. [0003] The electrolytic ozone generation technology emerged in the 1980s, and there have been many research and application reports. Generall...

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Problems solved by technology

However, in practical applications, the catalyst layer of the independent sheet structure needs to use (PTFE) and other binders, which increases the resistance of the catalyst layer itself and the contact resistance between the layers, resulting in high energy consumption and temperature rise; although in the form of electroplating A lead dioxide catalyst layer can be formed on the anode, but the resulting electrode layer is very uneven and easily broken, which causes the generator to have high resistance and a short service life; patent CN200610138715 is used on the surface and pores of porous titanium plates The ozone generator made by deposition catalyst method has the obvious disadvantages of long start-up time and high voltage in practical application due to the limitation of technology itself

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