UHT ultra-high temperature instant sterilizer working principle and operation rules

UHT ultra-high temperature instant sterilizer working principle and operation rules

UHT brief

UHT sterilizer UHT principle be divided into two kinds of direct and indirect heating, wherein the direct heating type steam blown material and blowing the material into two kinds of steam (no user can also choose the boiler electrically heated UHT Machine ), while indirect heating is divided into tube sterilizer and plate sterilizer. Indirect heating is most common in domestically produced UHT machines. Tubular UHT, which we usually called instantaneous UHT because of its dairy products, liquid, beverage, soy milk, wine, spices, wine, ice cream, fruit juice and soy sauce and other liquid food products in Widely used , and with unparalleled superiority of other equipment, it is favored by manufacturers in the food industry.

UHT ultra-high temperature instant sterilizer principle

The general material is preheated by the centrifugal pump into the hot and cold material heat exchange device in the sterilizer, and then through the high temperature high temperature barrel filled with high pressure, the material is rapidly heated to the sterilization temperature and maintained for about 3 seconds before and after . The enzymes were quickly killed. After the material is discharged from the high temperature barrel, it is cooled by heat exchange with the cold material, and the temperature is generally lower than 65 °C . If the next process needs to increase the temperature, it can be achieved by adjusting the angle cut - off valve or circulation, etc., otherwise the cooling water is added to reduce the discharge temperature. The discharge is controlled by a throttle valve that allows the boiling point of the material to be above the maximum temperature while maintaining a certain pressure. This valve is adjusted during normal production, and the back pressure control flow is generated by the pump's urging force against the spring pressure, and should be fully opened when cleaning the sterilizer. The circulating storage tank can be used to prepare an acid-base solution for effective cleaning of the inner wall of the coil. Due to the simultaneous use of stainless steel three-way cocks , the flow rate can be adjusted appropriately.

Ultra high temperature instant sterilizer use precautions

In order to ensure the performance and life of the instantaneous ultra-high temperature sterilizer and ensure safe production, the following problems should be noted during use.

1. Regularly check the steam trap and filter to prevent the discharge of steam condensate from being blocked.

2. Always check if the safety valve, pressure gauge and thermometer are malfunctioning.

3. If it is found that the leakage of the shaft seal of the feed pump is serious, it should be repaired in time, or the end seal ring should be replaced.

4. If it is used together with the homogenizer , it can be matched with 3WR - 1.5 high-pressure pump and maintained according to the product manual.

5. If there is a possibility of freezing during the winter stoppage, drain the water in the pipe or fill the pipe with 1% lye.

6 , material joints and cocks should always check the sealing performance is good, to prevent leakage and air mixing. If there is air in the material, it will accelerate the fouling of the material on the pipe wall.

7. When the equipment is not in use, the steam discharge valve should be opened for future use.

8. The motor bearing of the feed centrifugal pump should be cleaned once a year, and the oil should be changed. The amount should not be too much, as long as it is half filled with the bearing shell.

9. The feed pump is not allowed to idling without liquid.

10 . When a sudden power failure occurs during the sterilization process, the steam should be quickly shut down, the steam exhaust valve is opened to exhaust the steam in the high temperature tank, and the water inlet shutoff valve is opened.

11 . If there is a stoppage or the air pressure does not meet the process requirements during the sterilization process, the valve should be adjusted to circulate or temporarily stop the material.

12 . Prevent debris and the like from entering the clogging sterilizer, and the entry of air will accelerate the fouling of the coil.

13 . When the equipment is temporarily not in use, the angle shut-off valve and steam drain valve should be opened for the next use.

UHT installation
1. The sterilizer from Shanghai Kero is installed on the flat floor in the workshop, without the need for equipment foundation.
2. When the equipment is installed, 4 foot bolts can be adjusted , and the feet must be in contact with the floor. The feed pump 4 feet also require contact with the floor, and the pump shaft must be leveled to prevent vibration during use.
3. All pipes connected to this equipment should be careful not to be subjected to external forces, especially to eliminate the effects of thermal expansion. 4 , the feed pump must ensure the correct direction of the motor rotation, the operator faces the impeller, the pump shaft should be rotated counterclockwise, after installation, the hand can be used to rotate the bearing is flexible.
5. At the steam inlet, a safety valve of 0.78 MPa (8 Kgf/cm2 ) must be installed .
6. When using a high-pressure homogenizer, the user- supplied pipeline shall be subjected to a pressure test of 14.7 MPa ( 150 Kgf/cm2 ) and shall not leak.
7. The vertical pipe of the circulating storage tank should be connected with the trench to prevent the washing liquid from corroding and damaging the floor of the workshop.
8. For any plant that may have a sudden power outage, connect the condensate outlet pipe under the high temperature bucket to the four-way, one end to the steam trap, one end to the water shut-off valve and then the tap water pipe, and one end to the water shut-off valve, except for the random accessories. The rest of the pipe fittings are provided by users.

The sterilizer produced by Shanghai Kero Machinery Equipment Co., Ltd. can be manufactured according to the needs of customers!

Food sterilization equipment network : http://

Ultra-high temperature instant sterilizer manufacturer: http://cn-machine.com/html/shajunshebei/

Process ultra-high temperature instant sterilizer introduction: http://?ID=176

Plate sterilizer    High temperature sterilization kettle    Centrifugal pump    Plate heat exchanger     High pressure homogenizer    High-pressure pump     Shut-off valve    

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