First, high pressure steam sterilizer working principle
High pressure steam sterilization is the article to be sterilized in a sealed pot pressure sterilization by heating , sterilization pot of boiling water and steam is generated . Water vapor will be sharp cold air from the pot in the drive to make the exhaust valve , then close the exhaust valve , heating was continued at this time because the steam can not overflow , and increasing the pressure within the sterilizer , thereby increasing the boiling point , obtained with the high temperature of 100 ℃ . Cause bacterial protein denaturation and coagulation to achieve the purpose of sterilization.
Second, the advantages of high-pressure steam sterilization
Autoclave sterilization methods are now widely used , and it has quick and efficient , to achieve convenience , low cost, no side effects and other advantages.
At the same temperature , heat than dry heat sterilization efficacy big . There are three reasons : First, the bacterial cell absorbs heat moisture, protein coagulation easier , because the water content increased protein required solidification temperature decreases , the second is the penetration of heat than dry heat large , three steam heat there is the presence of latent heat . 1g of water at 100 ℃, can emit 2.26KJ ( kJ ) when the heat from the gas into a liquid . This latent heat , can rapidly raise the temperature of the object to be sterilized , thereby increasing the effectiveness of the sterilization .
When using high pressure steam sterilization , are excluded completely cold sterilization pot is extremely important because the air pressure is greater than the expansion of the expansion pressure of water vapor , so that when water vapor contained in the air at the same pressure , comprising air temperature below the saturation temperature of the steam vapor .Wanna know more?Please visit http://www.autoclavesale.com/ .
Third, errors the average user understand the sterilizer
A considerable part of the user is considered sterilizer cooker , as long as the pressure reaches the sterilization effect can be achieved , this view is wrong , as the air compressor can produce a very high pressure , but not the function of sterilization . Sterilization is not a major factor in the pressure but the temperature of the steam saturation temperature plays a decisive role, and depends on the degree of saturation vapor emissions are completely cold .
Therefore, when using high-pressure steam sterilization , are excluded completely cold sterilization pot is extremely important because the air pressure is greater than the expansion of the expansion pressure of water vapor , so that when water vapor contained in the air at the same pressure , the steam temperature is lower than air containing saturated steam temperature.