3. Mechanical and electronic valves are not used in the whole circulation system.

The main disadvantages of the traditional slotting temperature control device are:

1. Large volume of oil bath

Oil bath has two main functions:

A. Containing heat conducting medium

B. The heat conducting medium has the physical characteristics of thermal expansion and cold contraction, and the tank is equivalent to an expansion container. When the slotting system controls the external circulation, such as jacket reaction, the larger the volume of the reactor, the larger the volume of the jacket, the more the heat conducting medium of the whole system, the greater the concentration change during heating and cooling, and the larger the volume requirements of oil bath and water bath. The heat load in the temperature change process of the whole system is the total amount of heat transfer oil of the whole system (mainly) the reactants in the reaction kettle. The larger the volume of the water bath and oil bath, the smaller the effective power used in the kettle, and the slower the response and rate of the temperature rise and fall of the reactants in the kettle. The temperature control of the reaction kettle depends on the temperature change of the heat transfer oil in the jacket of the reaction kettle to control the temperature in the kettle. The more the system heat transfer medium is, the less the effective power is used in the kettle, and the slower the temperature control speed is.

2. Absorption of water vapor when reacting at low temperature, the surface temperature of the slotted oil bath is very low, and it is easy to absorb the water vapor in the air to freeze on the surface of the evaporator of the compressor. Ice is a good insulator, and the evaporator of the compressor is insulated and cannot conduct heat, so the compressor cannot cool the heat conducting medium and thus cannot reduce the temperature in the kettle.

3. When the oil mist reacts at high temperature, the heat transfer oil will volatilize into the air of the laboratory and condense on the surface of the furniture, blocking the filter of the fume hood. Because the flash point of the heat transfer oil is different, some can cause combustion and explosion, and the heat transfer oil can only be used at 5 degrees below the flash point, so the use temperature range of the heat transfer oil is relatively limited, so one medium is needed at high temperature, and another medium needs to be replaced at low temperature, In addition, heat transfer oil is easy to browning and oxidation at high temperature. Therefore, the heat transfer oil needs to be replaced regularly, and the use cost is relatively high.

4. Heating and cooling require manual switching, which is prone to misoperation and accidents.

The product of the rapid temperature rise and fall system realizes the accurate control of the reaction temperature, and its characteristics are as follows:

1. Equipped with heating and cooling integrated container, the heat exchange area is large, the heating and cooling rate is fast, and the demand for heat transfer oil is relatively small.

2. It can realize continuous temperature rise and fall. Using the compressor technology running under high temperature and high pressure, it can directly start the compressor refrigeration from 200 degrees to improve the energy efficiency ratio.

3. It has the function of correcting external circulation and internal circulation temperature probe PT100.

4. Use CFC and hcfe free refrigerants.

5. Accurately control the speed of chemical reaction.

6. The whole cycle is closed. There is no oil mist volatilization at high temperature, and the heat transfer oil will not be oxidized and browning; It will not absorb water vapor in the air at low temperature; The service life of heat transfer oil is prolonged.

7. With self diagnosis function, refrigerator overload protection, high-voltage pressure switch, overload relay, thermal protection device and other safety functions, it fully ensures the safety of use;

8. Temperature adaptive control adaptive control system in the process of controlling process (such as chemical reaction process), continuously adjust PID parameters to give the process the best control temperature and response time. This process is realized by effectively measuring temperature, temperature change and temperature change rate in multiple directions.

The double-layer glass reactor is professionally built by Shanghai Yaote Instrument Co., Ltd. which is a high-tech enterprise specializing in the research, development, production and sales of laboratory instruments. If you want to know more detailed product information of the company, please call 021-60412525 13761696931, and Shanghai Yaote will serve you wholeheartedly!