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Ozone Generator Quality Identification

Ozone Generator Quality Identification-Machinery & Equipment-CAS Testing Technical Services (Hong Kong) Company Limited

Ozone generator qualityAppraisal Background

ozone generator is a device used to produce ozone gas (O3). It converts oxygen into ozone through specific technical means, such as high-voltage discharge, electrochemical method or corona discharge method. Ozone is easy to decompose and cannot be stored for a long time, so it needs to be prepared on site and used immediately. In special cases, ozone can be stored for short periods of time. Ozone generators are widely used in drinking water treatment, sewage treatment, industrial oxidation, food processing and preservation, pharmaceutical synthesis, space sterilization and other fields.
In ozone generator quality cases, quality appraisal is an essential link. Zhongke Testing provides ozone generator quality appraisal services.

Ozone generator qualityAccreditation criteria

GB/T 37894-2019 Technical requirements for ozone generators for water treatment
HJ/T 264-2006 Technical requirements for environmental protection products Ozone generator
CJ/T 322-2010 Ozone generator for water treatment
GB 28232-2011 Ozone generator safety and hygiene standard

Ozone generator qualityAppraisal Scope

According to the way ozone is generated, there are three main types of ozone generators: high-voltage discharge type, ultraviolet irradiation type and electrolysis type.
is among the high-voltage discharge ozone generators, which are divided into three types: power frequency (50-60Hz), medium frequency (400-1000Hz) and high frequency (>1000Hz).
has two types, oxygen type and air type, depending on the gas material used.
has two types of cooling methods: water-cooling and air-cooling.
is divided by dielectric material, there are several types of quartz tube (a type of glass), ceramic version, ceramic tube, glass tube and enamel tube.
According to the structure of the ozone generator, there are two types: gap discharge type and open type.

Ozone generator qualityAuthentication case

was entrusted by a court to analyze the causes of the "ozone generator" explosion accident involved. The expert group discussed the relevant information on the "ozone generator" involved and the on-site investigation and inspection, and made a comprehensive quality and technical analysis, and made the following suggestions and conclusions: The "explosion" of the ozone generator
was not a chemical explosion, but because the fastening force of the ozone generator head cover was less than the pressure on the inside of the head cover from the high-pressure gas injected from the air inlet, causing the threads of the head cover and its fastening bolts to slip.
Regarding the fastening force of various parts of the ozone generator, GB Item 9.5 "Factory Inspection" of the 28232-2011 "Safety and Hygiene Standard for Ozone Generators" requires that "the positioning of the ozone generating unit in the ozone generator should be accurate, and fastening, support, connection and other components should be installed securely", that is, according to this national standard The products involved in the case should have been inspected before leaving the factory, but the defendant was unable to provide relevant factory inspection reports to prove that the ozone generators it produced did not meet national standards. This alone was enough to prove that the ozone generators produced by the defendant had product manufacturing defects.

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