(1) Disinfection and sterilization of containers

In food production, jars are widely used. They are connected by pipes, valves and instruments to form a production unit. For its disinfection, the traditional method is to soak it in alcohol. Reaction tanks and storage tanks, ranging from one and a half tons to more than ten tons and dozens of tons, should be filled with alcohol, and the amount of alcohol can be imagined. After disinfection, alcohol will be released, but there will still be alcohol residue at the joint between the island and the instrument valve. To remove the residual alcohol, blow it with nitrogen until it is dry. The consumption of alcohol is large, the disinfection time is long, and the operation process is complicated. High pressure steam also has the same problem, which is very laborious.

It is relatively easy to switch to ozone disinfection technology now. The specific method is to pump high-concentration ozone directly into the pipeline container, and the requirements of disinfection and sterilization can be achieved by keeping the ozone tail gas at a certain concentration. Because the inner surface of the pipeline container is disinfected, the ozone concentration is higher, and our design concentration is greater than 50ppm.

The advantages of using ozone to disinfect pipeline containers are very obvious. Ozone generator can be used to disinfect different tanks, and each production unit can be disinfected in time before each refueling. The use efficiency is very high and it is very convenient. Don't use so much alcohol, nitrogen or high pressure steam. Therefore, it can be popularized in pharmaceutical factories.

(2) The central air conditioning purification system disinfects and sterilizes the clean area.

In food factories, generally speaking, the clean areas are large, and the central air conditioning purification system is used to complete the purification and disinfection of each clean area. The traditional disinfection method is formaldehyde fumigation. As mentioned above, formaldehyde fumigation has many disadvantages, but ozone disinfection is a good method. The method is to put the ozone generator directly in the air duct of the air conditioning purification system, which is called the built-in ozone generator. With the airflow in the air duct, ozone is sent to various clean areas for disinfection and sterilization, and the remaining ozone is sucked into the air return port and taken away by the central air conditioner. You can also put the ozone generator outside the air outlet of the central air conditioner, pump ozone into the air duct of the central air conditioner, and then send it to each clean room. This is called an external ozone generator. The external ozone generator is easy to install and maintain, but the manufacturing cost is high. The disinfection effect of the two methods is the same. According to the requirements of the disinfection standard of the Ministry of Health, the ozone concentration of air disinfection is 5ppm, but in fact, the disinfection of clean areas is not only the disinfection of air, but also the disinfection of the surface of objects, so the designed concentration is 10ppm. Turn on the power supply 1 hour before going to work every day to ensure that the planktonic bacteria and settling bacteria in the clean area meet GMP requirements within one day.

The test report showed that the ozone concentration in each clean area reached more than 10ppm within 40 minutes by using the ozone generator, and all the bacteria tests were qualified. But also qualified every day, completely replacing the headache of formaldehyde fumigation. At the same time, non-productive work and energy consumption are reduced, and satisfactory results are achieved.

(3) Guangzhou Huanwei Ozone Machine Disinfection and Sterilization Space

For clean rooms other than the central air conditioning purification system, or other rooms that need sterilization, it is necessary to sterilize them separately. The method is to choose an ozone generator and install it directly in the room. Set the disinfection time according to the need, and automatically shut down after disinfection, which is very convenient to use.

For rooms with cleanliness requirements, filters are installed in the machine to make the ozone generator have self-cleaning function. Ozone concentration is designed according to 10-20ppm. According to the size of the room space volume. As long as the requirements of ozone concentration are met, the purpose of disinfection and sterilization can be achieved. This is much easier than fumigating the room with chemical reagents.

(4) surface disinfection and sterilization of articles

Raw materials, tools and packaging materials in food production. Often disinfect the surface, and often use disinfection cabinets and transfer windows. The traditional method is disinfection with ultraviolet rays. The main problem is incomplete disinfection, and it can be used in places with low requirements such as transfer windows. But it is far less effective than ozone. Disinfection cabinets made of ozone generators are very popular in food factories. Everything that is not afraid of ozone corrosion can be put in the cupboard for disinfection. Ozone concentration can be designed to be higher. More than 100ppm can be obtained.

(5) disinfection and sterilization of water

There are many places where food factories use water, including production water, disinfection water, cleaning water and drinking water. According to different water quality requirements, different technological processes and common ozone water treatment methods are adopted, and the disinfection process can achieve satisfactory results. I won't introduce it in detail here.

Second, the application scheme of ozone sterilization in HVAC system

In the production process of food factory, Guangzhou Huanwei ozone generator can effectively control microorganisms in clean area, and carry out aseptic production and clean production. Appropriate disinfectants should be selected to kill miscellaneous bacteria in the air and floating on the surfaces of mechanical equipment, molds, containers and buildings in a clean environment, so as to maintain the corresponding clean environment (sterile room) necessary for the production of "sterile food".

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