DZF 6050 vacuum oven.During the epidemic prevention and control period, sterilization has become a key word. The disinfection of medical equipment/consumables should be sterilized, the operation process of medical staff should be sterilized, public places should be sterilized, and medical waste should be sterilized and sterilized. These operations require the help of a sterilizer.
In the laboratory and other fields, common sterilization equipment includes hot air circulation oven, vacuum drying oven cost, dry heat sterilizer, high temperature and high pressure sterilizer, etc.
Advantages of vacuum drying oven:
◆Purpose of vacuum drying oven environment greatly reduces the boiling point of the liquid that needs to be driven off, so purpose of vacuum drying oven can be easily applied to heat-sensitive substances;
◆For samples that are not easy to dry, such as powder or other granular samples, vacuum drying can effectively shorten the drying time;
◆All kinds of mechanical parts with complex structure or other porous samples are cleaned and dried by purpose of vacuum drying oven, and no residual substances are left after they are completely dried;
◆Safer to use----under purpose of vacuum drying oven or inert conditions, completely eliminate the possibility of oxides exploding when exposed to heat;
◆Compared with ordinary drying relying on air circulation, powder samples will not be blown or moved by flowing air;
Features of vacuum drying oven:
◆PID temperature control technology, black film process LCD screen displays set temperature and current temperature, clear and intuitive;
◆It has functions such as timing, over-temperature alarm, and automatic error correction;
◆The studio is made of high-quality 304 stainless steel plate or high-quality steel plate, with four-corner arc design, easy to clean;
◆The tightness of the box door can be adjusted, and the integrally formed silicone sealing strip ensures a good sealing performance in the box;
◆Using a large double-layer thickened glass window, the heating items in the workroom can be seen at a glance;
◆Cold-rolled steel shell, using electrostatic spraying process, anti-corrosion and anti-aging.
Principle of vacuum drying oven cost:
High temperature dry heat can cause microbial oxidation, protein denaturation, and dielectric concentration to cause poisoning. Thermal sterilization mainly destroys cell protoplasm through oxidation and makes microorganisms die, so microorganisms can be effectively killed within a certain heating time. For example, the highest temperature of our company's oven OF3-P series can reach 760 ℃, and few bacteria can survive at this temperature. At the same time, because of the air heating method, the hot air circulation oven can also be used as a dry heat sterilizer.
The vacuum drying oven cost is based on the hot air circulation oven (drying oven), and also has the function of vacuuming. It provides a negative pressure environment while heating. It is widely used in biochemistry, chemical and pharmaceutical, medical and health, agricultural scientific research, environmental protection, etc. Research and application fields, used for powder drying, baking and disinfection and sterilization of various glass containers. At the same time, the vacuum drying oven cost is especially suitable for fast drying of heat-sensitive, easily decomposed, easily oxidized substances and articles with complex components.
The vacuum environment greatly reduces the boiling point of the liquid that needs to be expelled, so vacuum drying oven cost can be easily applied to heat-sensitive substances; for samples that are not easy to dry, such as powder or granular samples, the use of vacuum drying can effectively shorten the drying time; various complex structures Vacuum drying oven cost is used for mechanical parts or other porous samples after cleaning, and no participating substances are left after complete drying; it is safer to use - under vacuum or inert conditions, the possibility of thermal explosion of oxides is completely eliminated; In contrast to normal drying, powdered samples are not blown or moved by the flowing air.
The dry heat sterilizer is a technology that uses a dry environment (dry hot air) to sterilize with high temperature dry hot air. In the dry heat state, due to the poor heat penetration, the heat resistance of microorganisms is strong. , must be subjected to high temperature for a long time to achieve the purpose of sterilization.
Recommendations:
General recommendations: sterilization at 135-140 degrees Celsius for 3-5 hours; sterilization at 160-170 degrees Celsius for 2-4 hours; sterilization at 180-200 degrees Celsius for 0.5-1 hours. This product is suitable for the sterilization of high temperature resistant glass and metal products, as well as vaseline, grease (such as oily ointment mechanism, injection oil, etc.) Sterilization of test tubes, dishes, straws, syringes) and metal utensils (such as steel pipes, needles, clips, scissors, etc. for titer determination) is not suitable for sterilization of rubber, plastics and most drugs.
In addition, there is a moist heat sterilization method using an autoclave, which destroys bacteria in a closed environment through a high temperature and high pressure environment. Common sterilization parameters are as follows: 134°C, 3min, 126°C, 10min; 121°C, 15min; 115°C, 25min. Compared with pharmaceutical companies, in addition to disinfection and sterilization, more stringent heat removal is required, as long as the sterilization equipment has passed the verification of relevant heat removal and sterilization effects, such as bacterial endotoxin challenge test, Bacillus subtilis biological indicator Challenge verification, etc., can be used for sterilization with peace of mind.
