Membrane electrode electrolysis ozone generator

Abstract

The present invention discloses a membrane electrode electrolysis ozone generator which comprises a proton exchange membrane (2), an anode catalyst layer (3), an anode microplate (4), a guide plate (5), a cathode structure (1) and a sealing device (7). The membrane electrode electrolysis ozone generator is characterized in that a frame body (6) is formed by connecting a periphery of a frame body (6-3), a thin-walled body (6-2) and a conductive column coating body (6-1) into a whole, wherein the thin-walled body (6-2) is arranged between the frame body (6-3) and the conductive column coating body (6-1); the thin-walled body (6-2) is arc, V or plane type elastic structure; a fastening and pressing plate (8) is arranged on a conductive column (13) is fastened with the cathode structure (1) together through a screw(10). The membrane electrode electrolysis ozone generator can solve the problem that the production of ozone of the electrolysis ozone generator is reduced due to thinning of the anode catalyst layer, lead the electrolysis ozone generator to keep the stable pressure and the good contact during long-term operation, keep the stable ozone production and achieve the stable performances.

Description

Technical field: [0001] The invention relates to a membrane electrode electrolytic ozone generator using pure water as a raw material, belonging to the technical field of electrolytic ozone generators. Background technique: [0002] At present, the electrolytic ozone generator with pure water as raw material has various structures, for example: the utility model name of the patent No. ZL200520113829.9 proposed by the inventor to the Chinese Patent Office is "an anode structure of an electrolytic ozone generator" utility model patents. There is also a Chinese patent application No. 97122126.X, the invention patent of which is called "electrolytic ozone generator". [0003] Above-mentioned structure has following shortcoming: [0004] 1. After fastening, the fastening force simultaneously provides the two pressures required for the sealing device to deform and seal and the anode catalyst layer to compress the proton exchange membrane, because the force required to deform and...

AI Technical Summary

Problems solved by technology

[0004] 1. After fastening, the fastening force simultaneously provides the two pressures required for the sealing device to deform and seal and the anode catalyst layer to compress the proton exchange membrane, because the force required to deform and seal the sealing device and the anode catalyst layer compress the proton exchange The force required by the membrane is not the same, which will cause the other side to be too large or too small, which will affect the sealing performance or the pressing force between the anode catalyst layer and the proton exchange membrane, resulting in unstable performance of the membrane electrode electrolytic ozone generator. A reduction in ozone production

[0005] 2. After a long period of operation, the thickness of the anode catalyst layer will gradually become thinner, and after the thickness becomes thinner, the fastening pressure plate cannot continue to provide sufficient pressure, nor can it quickly compensate for the pressure lost due to the thinner thickness , which directly affects the anode structure of the electrolytic ozone generator is loose, and the pressure between the anode catalyst layer and the proton exchange membrane is insufficient, which reduces the ozone production of the membrane electrode electrolytic ozone generator.

[0006] 3. Ozone is extremely oxidative and corrosive. During operation, the large-volume sealing device is in direct contact with ozone. Because of its large surface area, it is more likely to be oxidized and corroded by ozone. After a long period of operation, the physical characteristics of the sealing device will change. Aging, the sealing performance decreases, and then the seal fails, causing the gas produced and raw water to leak

[0007] 4. Using multiple sealing devices to seal, not only increases the cost or complicates the operation process, but also cannot completely avoid being oxidized and corroded by ozone no matter how small the contact area with ozone is, resulting in seal failure

[0008] 5. After a long period of operation, the sealing device made of silicone rubber cannot resist the oxidation and corrosion of high-concentration ozone, and will harden and lose elasticity due to rapid aging, resulting in seal failure

[0009] 6. Conventional cathode structures include cathode fixing plates, anti-corrosion sheets, frames, deflectors, sealing devices, anode microporous plates, cathode catalyst layers, etc. Therefore, there are many types of parts, which increase the complexity of production and assembly, thereby affecting product reliability. lead to higher production costs

Images