General Precautions for Handling Compressed Gases

1. Equipment and environmental requirements

Equipment environment: There must be dedicated laboratories and equipment rooms. Before use, it is necessary to ensure that the laboratory environment is dry, clean, well ventilated, and free of flammable and explosive materials.

Equipment inspection: Before the experiment, a detailed inspection of the hot and cold cylinders must be conducted to ensure that all instruments, equipment, and components are in normal condition and have been thoroughly dried.

Instrument operation table and ground placement: The workbench must be able to withstand the weight of hot and cold cylinders and sample containers, and the ground should be flat and dry.

2. Preparation before operation

Before operation, it is necessary to wear laboratory clothing and safety shoes that meet the standards, as well as personal protective equipment such as gloves and face shields.

Before placing the sample container in the hot and cold cylinders, the cylinders must be allowed to work for a period of time to reach a stable temperature.

3. Operational matters

Shutdown operation: After stopping use, the hot and cold cylinders must be gradually cooled to room temperature before removing the container.

4. Safety precautions

During use, it is not allowed to disassemble or modify the hot and cold cylinders without authorization.

When abnormal situations are found during operation, the machine should be stopped in a timely manner for troubleshooting.

5. Equipment maintenance

Regularly inspect and maintain the hot and cold cylinders, and promptly replace vulnerable parts such as sample containers to ensure the normal operation of the equipment.

Regularly inspect the components and instruments of the equipment, check whether the wiring is damaged, and whether the valves, pipelines, and joints are damaged or severely worn.

Ensure that the safety performance of all electrical equipment meets the standards.

Regularly replace the thermometer and pressure gauge (usually every 6 months).

Replace the sealing strip and pipeline fixture (depending on usage, refer to the user manual for replacement frequency).

Perform anti-corrosion treatment every year.

6. Cleaning

After the hot and cold cylinder processing is completed and the remaining condensed water in the cylinder jacket is drained, it should be rinsed with warm water as soon as possible to brush off the sticky material.

Thoroughly clean the inner wall of the container with alkaline water at 40 ℃~50 ℃, and rinse with clean water. For the next use, disinfect with hot water or steam (90 ℃ or above) for 2-3 minutes.

7. Maintenance

Regularly pay attention to the working condition of the entire set of cold and hot cylinder equipment and reducer, and replenish lubricating oil in a timely manner.

When the hot and cold cylinders are not in use, rinse the jacket with warm water to prevent salt water from corroding the cylinders. Regularly clean the cylinder body to maintain a clean exterior and a bright interior, achieving the goal of durability.

8. Purpose and Structure

Cold and hot tanks are suitable for the dairy industry, food, pharmaceutical, chemical, beverage and other industrial sectors. They are essential stainless steel tanks for heating, cooling, insulation, sterilization or storage of slurries.

The structure includes an inner liner, jacket, insulation layer, outer sheath, reducer, mixing blade, thermometer, etc.

9. Installation

Install the equipment onto the four foot bolts and adjust the feet to a horizontal line perpendicular to the reducer before installing the inlet and outlet pipes.

When powered on, be sure to rotate the stirring blade clockwise and not in reverse.

By following these precautions, the safe and effective use of the hot and cold cylinders can be ensured.