Tang Lian Chemistry


Precautions for laboratory reactor

When using different media for reactions in the reactor, the first step is to investigate whether the media corrodes the main materials. Special instructions are required for chemical reactions that generate a large amount of gas or flammable and explosive substances at high temperatures, as well as reactions that cause severe corrosion of stainless steel by chloride ions, fluoride ions, etc. in ultra-high pressure, ultra-high temperature, or media.
When loading the reaction medium, it should not exceed 2/3 of the liquid level in the laboratory reaction kettle.

Do not disassemble under pressure during or after work, and it is strictly prohibited to operate the reactor under overpressure or overheating conditions.
When cleaning the high-pressure laboratory reactor, special attention should be paid to preventing water or other liquids from flowing into the heating furnace to prevent the heating furnace wire from burning out. If heating the jacket heat transfer oil, be careful not to mix water or other liquids into it when adding heat transfer oil. The oil level of heat transfer oil should be checked regularly.
During operation, if there is abnormal sound inside the isolation sleeve, the machine should be shut down to release pressure and the mixing system should be checked for any abnormalities. Regularly check the oscillation of the stirring shaft of the stainless steel test kettle. If the swing amplitude is too large, the bearing or sliding sleeve should be replaced in a timely manner.

Connect the corresponding voltage according to the usage voltage of the control instrument, single-phase 220V, three-phase 380V, and do not connect the wires and zero wires of the control instrument in reverse; Wiring work cannot be carried out during the transmission process to prevent electric shock! In order to ensure the normal operation of the control instrument and the personal safety of the staff, it is necessary to connect the grounding wire properly! The controller itself does not have explosion-proof function, so it should be avoided in flammable and explosive environments such as oil and gas.
After the final reaction temperature is determined, it is not allowed to change the temperature setting value during the heating process to avoid obvious overheating.

On the premise of connecting the power supply of the control instrument, even without turning on the heating and stirring switches, the output terminals of the rear panel of the control instrument are still live, and contact with any plugs is not allowed during operation.
The display of working hours is based on the internal microcontroller 8031, which records the accumulation of internal frequency division. Every power outage will result in the disappearance of internal accumulated data. During operation, it should be noted that the unit displayed for working time is minutes, with a maximum working time of 9999 minutes (166.5 hours)! If the working hours are too long, it can lead to too short working hours.
The correct detection position of the speed display is crucial for a stable speed display. This position has been adjusted at the factory and should not be adjusted arbitrarily.

Every time the machine is turned on, it is required that any button be in its initial state. This requires the operator to develop good work habits and turn the knob back to the minimum position after each operation to prevent excessive current surges and damage to the control instruments during the next startup of the stainless steel testing kettle.

Regularly inspect various instruments and explosion relief devices to ensure their accurate and reliable operation. The working environment of the equipment should comply with the requirements of safety technical specifications.

When installing a laboratory reactor, the explosion vent should be connected to the outdoor through a pipeline.

When the laboratory reactor is out of service for a long time, the inside and outside of the reactor should be wiped clean without water or other substances, and stored in a clean, dry, and corrosion-free place

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