Saturated steam sterilization kettle

NegotiableUpdate on 01/21

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Nature of the Manufacturer: Producers

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Overview

Saturated steam sterilization kettle is a type of sterilization kettle used by humans for can sterilization. Compared to iron can sterilization, it is a reliable sterilization kettle type. During this process, steam is filled into the sterilization kettle and all air is discharged from the sterilization kettle through an exhaust valve. Due to the fact that air is not allowed to enter the sterilization kettle at any time during any sterilization step, there will be no overpressure during the sterilization stage of this process. However, air overpressure may be applied during the cooling process to prevent container deformation. The FDA and Chinese regulations have provided detailed regulatory explanations for the design and operation of steam sterilization kettles, so although they do not have an advantage in terms of energy consumption, they are still favored by many customers due to their widespread use in many old canning factories. DTS has made many optimizations in terms of automation and energy savings while ensuring compliance with FDA and USDA requirements.

Product Details

Working principle of saturated steam sterilization kettle

Load the product basket into the sterilization kettle and close the kettle door. Then the kettle door is ensured to be safe through triple safety interlocking. Throughout the sterilization process, the door is mechanically locked.

The sterilization process is automatically carried out according to the formula input into the microprocessor controller PLC.

At the beginning, steam enters through the steam diffusion tube inside the kettle, and air is discharged through the exhaust port. When the predetermined exhaust temperature and time are reached, it enters the heating stage. The entire heating and sterilization process must ensure that the sterilization kettle is saturated with steam, and there should be no residual air present that causes uneven heat distribution and sterilization. The vent is opened throughout the entire exhaust, heating, and sterilization stages to allow steam to form convection and ensure temperature uniformity.

Cooling is divided into two stages, micro cooling and full cooling. The purpose of micro cooling is to prevent pressure loss inside the kettle and ensure that the product packaging does not deform.

Due to the use of saturated steam during sterilization, the sterilization kettle pressure corresponds to the steam saturation pressure, and is only suitable for rigid containers such as iron cans with a wide range of pressure requirements.

The temperature distribution uniformity inside the kettle is+/-0.5 ℃.

Advantages of saturated steam sterilization kettle

● Uniform heat distribution

By eliminating the air inside the sterilization kettle, the purpose of saturated steam sterilization is achieved. Therefore, during the heating stage after exhausting the steam, the temperature inside the kettle reaches a very uniform state.

● Compliant with FDA/USDA certification

DTS has experienced thermal validation experts and is a member of IFTPS in the United States. We fully cooperate with third-party thermal validation agencies recognized by the FDA, and the experience of numerous North American customers has made DTS familiar with FDA/USDA regulatory requirements and cutting-edge sterilization technologies.

● Simple and reliable

　Compared to other forms of sterilization, there are no other heating media for the heating and sterilization stages, so it is only necessary to control the steam well to ensure the consistency of the batch of products.

The FDA has provided detailed instructions on the design and operation of steam sterilization kettles, and many old canning factories have been using them, so customers are aware of the working principle of this type of sterilization kettle, making it easy for old users to accept.