The portable high-pressure steam sterilizer is a device for sterilizing articles, instruments, liquid chemicals, etc. by using pressurized saturated steam, and is suitable for medical and health, food and other industries, and has a simple and reliable structure and simple operation. Steps for usage: 1) Preparation: First remove the inner layer sterilization barrel, and then add an appropriate amount of water to the outer layer pot to make the water surface and the triangle shelf level. Generally, water should be added before each sterilization. Do not add too little water, otherwise it will cause it to dry or burst. Add water to the deionized water or distilled water, so that the scale produced is less, and the pot body is not easily corroded. 2) Put back the sterilization bucket and load the items to be sterilized. The medium to be sterilized and the empty glassware are wrapped in kraft paper and placed in the jacket of the pot. The items should not be placed too much, too much, and a space of one third should be left in the pot. In order to avoid hindering the circulation of steam, it will affect the sterilization effect. Do not contact the barrel end of the flask and the end of the tube to prevent the condensate from drenching the paper at the mouth and penetrating into the tampon. 3) Cover and insert the exhaust hose on the cover into the exhaust groove of the inner sterilization tank. Then cover the lid tightly and tighten the bolts on the lid evenly in a diagonal manner so that the bolts are tight and tight, so that no air leaks. 4) Heat with an electric furnace or gas, and open the exhaust valve at the same time to boil the water to remove the cold air from the pot. After the cold air is completely drained, close the exhaust valve so that the temperature inside the pot gradually increases as the steam pressure increases. When the pressure in the pot rises to the required pressure, control the heat source, maintain the pressure to the required time (usually 121 ° C, 0.1 MPa when the temperature or pressure is required), cut off the power supply, and stop heating. When the temperature drops, turn the power on again to start heating to maintain the temperature within a constant range. Because the temperature is too low to achieve the sterilization effect, too high may be dangerous. Nowadays, the portable sterilizer on the market has achieved control automation, but because the sterilization pressure is relatively large, Zui is still better at the scene. 5) After the time required for sterilization, turn off the power or turn off the gas, let the temperature inside the sterilization pot drop naturally. When the pressure of the pressure gauge drops to 0, open the exhaust valve, loosen the bolt, open the cover, 10 minutes later. Remove the sterilized items. If the pressure does not drop to 0, open the exhaust valve, the pressure in the pot will suddenly drop, so that the liquid in the container will be flushed out of the flask mouth or the test tube mouth due to the imbalance of internal and external pressure, causing the cotton plug to contaminate the medium and pollute. . Precautions: 1. Sterilized items should not be piled up too tightly, so as not to affect the temperature rise evenly. 2. When the temperature is lowered, the temperature will naturally drop below 60 °C and then open the door to take out the items, so as to avoid the sudden drop of temperature due to excessive temperature, causing the glassware to burst. 3. During the sterilization process, attention should be paid to draining the cold air in the pot. If the cold air in the pot is not cleaned, it will affect the sterilization effect and will not achieve the purpose of thorough sterilization. Due to the high-pressure steam sterilization, it is necessary to use superheated steam with a temperature of up to 120 ° C and two atmospheres. When operating, it must be operated in strict accordance with the operating procedures, otherwise it is prone to accidents. 4. At the same temperature, the heat sterilization effect is greater than dry heat. There are three reasons for this: First, the bacterial cells in the moist heat absorb water, and the protein is easier to coagulate. As the water content of the protein increases, the required solidification temperature decreases. Second, the penetration of moist heat is greater than dry heat; Third, the hot and humid steam has latent heat. When 1 gram of water is at 100 ° C, it can release 2.26 kJ (kJ) of heat from the gaseous state to the liquid state. This latent heat can quickly increase the temperature of the object to be sterilized, thereby increasing the effectiveness of sterilization. When using a high-pressure steam sterilization pot, the elimination of cold air in the sterilization pot is completely important because the expansion pressure of the air is greater than the expansion pressure of the water vapor. Therefore, when the water vapor contains air, under the same pressure. The temperature of the air-containing steam is lower than the temperature of the saturated steam.
Food Blister Tray,Fruit Packaging Tray,Plastic Blister Box,Custom Blister Packaging
light weight, convenient transportation, good sealing performance, in line with the requirements of environmental protection and green packaging; Can pack any special-shaped products, packing without additional cushioning materials; The packaged products are transparent and visible, beautiful in appearance, easy to sell, and suitable for mechanization, automatic packaging, convenient for modern management, labor saving, improve efficiency
Egg Blister Tray,Egg Packaging Tray,Blister Tray Packaging,Blister Packaging Services taicang hexiang packaging material co.,ltd , https://www.medpackhexiang.com
