Cabbage is one of the common vegetables in our daily life. Cabbage is rich in nutrients, including carotene, vitamin B1, vitamin B2, vitamin C, crude fiber, as well as protein, fat, calcium, phosphorus, iron, and more. So what are the special methods and related equipment for pre cooling and preservation of cabbage? Below, the Dachang editor will introduce a device independently developed by Dachang called the "Cabbage Vacuum Pre cooling Machine". We call it the Cabbage Vacuum Pre cooling Machine! Please read below for its specific functions and related introductions:
Cabbage vacuum pre cooler is a machine equipment used for pre cooling cabbage. It uses vacuum technology to rapidly lower the temperature of cabbage by reducing the ambient air pressure, thus achieving the effect of pre cooling. The usage method of the cabbage vacuum pre cooler is as follows:
1. Preparation: Wash the cabbage, cut off the roots, put it in a basket, and prepare to put it into a vacuum pre cooling machine for pre cooling treatment.
2. Start the vacuum pump: Insert the power plug of the vacuum pre cooler into the power socket, press the start button, and start the vacuum pump.
3. Reduce air pressure: After the vacuum pump is started, the air pressure inside the precooler will gradually decrease, causing the air inside the precooler to be expelled.
4. Open the cooling water source: When the air pressure inside the precooler drops to an appropriate value, open the cooling water source and introduce the cooling water into the cooling water circuit of the precooler.
5. Control cooling water temperature: By adjusting the water temperature of the cooling water source, control the cooling water temperature inside the pre cooling machine to maintain it within a suitable temperature range.
6. Pre cooling time: Control the pre cooling time according to the quantity and size of cabbage, usually 10-20 minutes.
7. Close the machine door: After the pre cooling time is reached, close the machine door of the vacuum pre cooler and stop the operation of the vacuum pump.
8. Take out the cabbage: Take out the pre cooled cabbage, put it in a fresh-keeping bag or box, and refrigerate or freeze it.
In summary, the vacuum pre cooling machine for cabbage can effectively achieve pre cooling treatment and extend its shelf life. When using, it is necessary to pay attention to controlling factors such as vacuum pump, cooling water source, and pre cooling time to achieve the best pre cooling effect.
Working Principle
The principle of the cabbage vacuum pre cooler is to use gas heat transfer under vacuum to achieve pre cooling treatment of vegetables. Specifically, after being cleaned, cut, and processed, vegetables are placed in a vacuum pre cooling machine. The vacuum pump inside the machine extracts air to create a vacuum state. At this point, the contact area between the vegetables and the surrounding air decreases, and the gas heat transfer rate increases. The heat in the vegetables will be transferred to the surrounding cooling medium through gas heat transfer, achieving the pre cooling treatment of the vegetables. Usually, water or ice cubes can be chosen as the cooling medium. Based on the pre cooling requirements of vegetables, selecting the appropriate cooling medium and temperature, controlling the air pressure and temperature inside the machine can effectively achieve pre cooling treatment of vegetables. The vacuum pre cooling machine for cabbage can achieve pre cooling treatment of vegetables in a short period of time by controlling the temperature of gas heat transfer and cooling medium, effectively extending the shelf life of vegetables and improving their quality and economic benefits.
Features
Cabbage vacuum pre cooling machine is a device used for pre cooling vegetables. Its main function is to quickly cool newly harvested vegetables to reduce heat accumulation during harvesting, transportation, and storage, and extend the shelf life of vegetables. Specifically, the functions of the cabbage vacuum pre cooler are as follows:
1. Rapid cooling: By using a vacuum pump to exhaust the air inside the machine, a vacuum environment is formed, allowing vegetables to quickly cool down in a short period of time, achieving the effect of pre cooling.
2. Maintaining nutrition: In a vacuum environment, the cell tissue of vegetables will not be excessively damaged, which can maintain the nutritional content and taste of vegetables.
3. Improving quality: Through pre cooling treatment, the quality of vegetables is improved, and there will be no moisture on the surface, which can better adapt to long-distance transportation and storage environments.
4. Energy saving and environmental protection: The energy consumption of the cabbage vacuum pre cooler is relatively low, and the machine uses clean energy internally, which will not cause pollution to the environment and meets the requirements of modern green environmental protection.
In short, the function of the cabbage vacuum pre cooling machine is to achieve rapid pre cooling and preservation of vegetables through the combination of vacuum environment and cooling water source, improve the quality and preservation period of vegetables, and also have energy-saving and environmentally friendly characteristics.
Precautions and maintenance methods
The precautions and maintenance methods for the vacuum pre cooler of cabbage are as follows:
1. Attention:
Before using the cabbage vacuum pre cooler, it is necessary to check whether the power lines, pipelines, joints, and other components of the machine are intact to ensure that the machine is in a safe state.
During use, attention should be paid to observing the operation of the machine. If any abnormal noise, odor, temperature changes, etc. are found, the machine should be stopped for inspection in a timely manner.
During use, avoid inserting fingers, tools, and other objects into the interior of the machine to prevent accidental injury.
During use, attention should be paid to keeping the area around the machine clean and avoiding debris, moisture, etc. from entering the interior of the machine, which may affect its normal operation.
2. Maintenance method:
Regularly clean the internal components such as the filter screen and filter element of the machine to ensure its normal operation.
Regularly inspect the pipes, joints, and other components of the machine, replace damaged or aging parts in a timely manner, and ensure the sealing and safety of the machine.
Regularly inspect the vacuum pump, motor, and other components of the machine, perform timely maintenance and upkeep to ensure the normal operation of the machine.
After the machine is stopped, the moisture inside the machine should be drained to prevent corrosion and rust inside the machine.
In short, the use and maintenance of the cabbage vacuum pre cooler should strictly follow the above precautions and maintenance methods to ensure the normal operation and service life of the machine.
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