Linbel Instrument collaborates with Hunan University of Technology to support scientific research innovation and development.

Linbel Instrument collaborates with Hunan University of Technology to support scientific research innovation and development.

The Chemistry Laboratory of Hunan University of Technology has purchased an explosion-proof heating and cooling circulator pump GDX-403A and a 7L stainless steel reactor to meet the precise control of reaction temperature and the need for chemical reactions in explosion-proof environments for specific experimental projects. This set of equipment will be used for the study of various organic synthesis reactions, aiming to improve the safety of experiments and the accuracy of temperature control, and provide reliable experimental conditions for scientific research work.

1. Pre debugging inspection

Check the installation of the equipment, including whether the connections of each component are firm, whether the pipelines are sealed, and whether the electrical circuits are connected correctly.

Check if the reactor is clean and free of debris residue. Check whether the installation position of the stirring blade is correct and whether the gap between the stirring blade and the inner wall of the reactor meets the requirements.

Check whether the temperature setting value, cooling and heating functions of the explosion-proof heating and cooling circulator pump are normal, and whether the cooling water system is operating normally. Check whether the pressure sensor, safety valve and other safety devices of the reactor are working properly.

2. No load debugging

Turn on the power switch of the explosion-proof heating and cooling circulator pump GDX-403A and start the control system of the equipment. Set temperature control parameters on the human-computer interaction interface, such as setting the temperature to 50℃.

Activate the heating function and observe the heating process of the device. Check if the heating element is working properly and if the heating speed meets the requirements. At the same time, observe the deviation between the displayed value of the temperature sensor and the set value. When the temperature reaches the set value, check whether the equipment can automatically stop heating and maintain the temperature stable within the range of ±0.5℃ of the set value.

After the equipment temperature stabilizes, start the mixing motor, adjust the mixing speed to the lowest gear, and observe the rotation of the mixing blade. Check if the mixing motor runs smoothly and if there are any abnormal noises or vibrations. Gradually increase the stirring speed to a high level, check the operation of the stirring system at different speeds, and ensure that the stirring blade can form a good stirring effect throughout the entire reactor.

Activate the cooling function of the explosion-proof heating and cooling circulator pump, and set the temperature to -20℃. Observe the cooling process of the equipment and check whether the refrigeration components such as the compressor, condenser, and evaporator are working properly. During the cooling process, observe the deviation between the displayed value of the temperature sensor and the set value. When the temperature reaches the set value, check whether the equipment can automatically stop cooling and maintain temperature stability.

3. Load debugging

After the no-load debugging is normal, add an appropriate amount of experimental material (such as 5L water) to the 7L stainless steel reactor and seal the reactor.

According to the experimental requirements, set parameters such as reaction temperature and stirring speed on the human-machine interaction interface of the explosion-proof heating and cooling circulator pump. For example, set the temperature to 80℃ and the stirring speed to 300rpm.

Activate the heating function and mixing motor to initiate the reaction. During the reaction process, closely observe the temperature changes, stirring conditions, and equipment operation status inside the reactor. Record temperature data at regular intervals to check the accuracy and stability of temperature control.

After the reaction temperature reaches the set value, observe the temperature fluctuations during the reaction process to ensure that the temperature fluctuations do not exceed ±1℃. At the same time, check the sealing performance of the reactor for any leakage. During the reaction process, pay attention to the displayed value of the pressure sensor. If the pressure exceeds the set value, check whether the safety valve can open and release pressure normally.

After completing one reaction cycle, stop the heating and stirring motor, wait for the temperature inside the reactor to drop to room temperature, open the reactor, remove the reaction material, and check whether the reaction result meets expectations.

The installation and commissioning of the explosion-proof heating and cooling circulator pump GDX-403A with a 7L stainless steel reactor have been successfully completed. By strictly following the installation instructions and debugging standards of the equipment, the correct installation and debugging of the equipment are ensured, enabling it to operate stably in university chemistry laboratories and providing reliable temperature control and reaction condition guarantees for scientific research experiments. In the future use process, it is necessary to regularly maintain and upkeep the equipment, check the operating status of the equipment, timely discover and solve possible problems, in order to extend the service life of the equipment and ensure the safety and smooth progress of experimental work.