A continuous flow chemical reaction process temperature control system

Abstract

The invention relates to the technical field of pharmaceutical and chemical industries, and discloses a temperature control system for a continuous flow chemical reaction process, which includes a box body, and the inside of the box body contains a refrigeration unit and a heating unit, and the inside of the heating unit contains a TCU Composed of circulation pump, two-way regulating valve, gas-liquid separation tank, temperature transmitter and pressure transmitter, check valve, electric heater, inlet stop valve and outlet stop valve, the refrigeration unit contains a cold oil circulation pump , cold oil buffer tank, refrigeration unit, cold oil return pipeline, jacket removal pipeline, jacket return pipeline, emptying pipeline and overflow pipeline, the continuous flow chemical reaction process temperature control system, heat transfer medium The TCU circulation pump circulates in the jacket of the reaction kettle or other equipment, the electric heating is used to provide the heat source to raise the temperature, the refrigeration unit is used to provide the cold source, and the flow rate of the refrigerant entering the circulation system is adjusted to reduce the temperature. It is equipped with a unique control program to achieve The purpose of intelligently adjusting the temperature in the reactor.

Description

technical field [0001] The invention relates to the technical field of pharmaceutical and chemical industries, in particular to a continuous flow chemical reaction process temperature control system. Background technique [0002] In the field of pharmaceutical and chemical industry, in order to improve production efficiency, continuous flow chemical experiments and pharmaceutical reaction production systems are more and more widely used. In the continuous flow reaction process, temperature control is a key process control point, and the heating and cooling rate, accuracy and stability of temperature control all play a vital role in the reaction. [0003] Traditional temperature control systems are generally designed and manufactured based on conventional production process requirements, and have the following characteristics. The output power of a single system is relatively large, and the circulation volume of cooling and heating media is also large; the output temperature ...

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Problems solved by technology

[0003] Traditional temperature control systems are generally designed and manufactured based on conventional production process requirements, and have the following characteristics. The output power of a single system is relatively large, and the circulation volume of cooling and heating media is also large; the output temperature of the system is single, and it is impossible to achieve multiple outputs from one machine Temperature point control function; generally use external cooling and heating media to raise and lower the temperature, the installation and use environment is limited; affected by the structural layout, the overall size is generally large, not suitable for continuous flow chemical reaction experiments and production use

[0004] Compared with the traditional production process, the temperature control point in the continuous flow production process has a small single load, a wide temperature range, higher control accuracy requirements, and a relatively centralized and compact layout. Generally, the laboratory cannot provide cooling such as steam, ethylene glycol or brine. Due to the characteristics of heat medium public works, limited by the working principle and structural layout, the traditional industrial-grade temperature control system can no longer meet the complex working conditions and environmental requirements in continuous flow production. A compact, precise and stable temperature control system is developed. Sensitive to temperature rise and fall, easy to operate, a continuous flow intelligent temperature control system that can meet the laboratory public engineering environment has become a demand

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