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09
2023
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05
Steps to exhaust air from a cleanliness extractor
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When we use the cleanliness extractor, in order to ensure the normal operation of the equipment and the safety of the operator, we need to pay attention to the exhaust steps. The following is the understanding and experience sharing of the exhaust air of the cleanliness extractor.
First of all, the cleanliness extractor is a common experimental equipment for extracting substances, purification and separation and other applications. When operating equipment, exhaust is a very critical step to avoid problems such as air bubbles and protect the safety of equipment and operators.
Before exhausting, the tightness of the equipment and the condition of the vacuum pump must be checked. If the equipment leaks or the vacuum pump fails, repair and maintenance are required first. Ensure that the equipment is functioning properly before proceeding with the exhaust operation.
The next step is the specific exhaust step:
1. Connect the cleanliness extractor with the vacuum pump. When connecting, ensure that the connection port is well sealed to avoid gas leakage.
2. Turn on the vacuum pump and adjust it to a suitable working state. Usually the vacuum pump needs to enter the low vacuum state first, and then enter the high vacuum state to avoid equipment damage caused by pressure difference.
3. Open the intake valve of the cleanliness extractor and adjust the valve opening appropriately. The position and opening of the intake valve need to be adjusted according to the specific requirements of the experiment.
4. Close the outlet valve of the cleanliness extractor. The exhaust valve is used to exhaust and needs to be closed when exhausting.
5. Start exhausting air. When the air inside the equipment is pumped out by the vacuum pump, the pressure gauge on the intake valve will display the pressure value inside the device. Under normal circumstances, the exhaust time is about 2-3 minutes.
6. Close the intake valve. When the pressure gauge shows that the pressure value in the device is stable within the required range, the intake valve can be closed.
7. Open the outlet valve. After the exhaust is completed, the exhaust valve needs to be opened to expel the air inside the device.
8. During the exhaust process, pay close attention to the status of the equipment and the display of the pressure gauge. If the pressure value inside the equipment is found to be unstable or abnormal, the exhaust operation must be stopped in time, and the status of the equipment and vacuum pump must be checked to ensure the safety of the equipment and operators.
In conclusion, the exhaust step of the cleanliness extractor is simple, but pay attention to the operational details and safety issues. The purpose of exhaust is to ensure that there will be no bubbles in the equipment, and at the same time to improve the efficiency and purity of the equipment. Before pumping operation, the tightness of the equipment and the condition of the vacuum pump must be checked, and adjusted according to the requirements of the experiment.
If you are a first-time cleaner or you are not familiar with the procedures for venting, it is recommended that you operate it under the guidance of a laboratory teacher or other experienced colleague. Any experimental operation needs to pay attention to safety issues to ensure the safety of operators and equipment.
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2025-09-03
2023-05-09
2023-05-09
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