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Microreactor production control system with safety protection function

A micro-reactor, production control technology, applied in chemical/physical/physicochemical reactors, control/adjustment process, chemical instruments and methods, etc., can solve the problem of insufficient active control technology, lack of safety protection modules, failure to Realize on-site micro-reactor production orders and other issues to achieve the effect of powerful functions, simple and intuitive operation, and high safety

Active Publication Date: 2021-06-29
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the application of automatic control in the microreactor system usually only monitors the flow, temperature, pressure and other parameters, and the active control technology for the above-mentioned production environment parameters is not enough.
In addition, in the case of automated production operations, there is no reliable safety protection module for over-temperature, over-pressure and abnormal production interruption, and at the same time, the monitoring circuit is used to ensure the normal and effective operation of the embedded main control board, and the on-site micro-control board cannot be realized. Reactor production control center for production orders, remote transmission and storage of operating parameters and other functions

Method used

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  • Microreactor production control system with safety protection function
  • Microreactor production control system with safety protection function
  • Microreactor production control system with safety protection function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The reaction environment control module includes an embedded main control board 4A, two high-temperature oil bath machines 4B, one low-temperature oil bath machine 4C, two heat exchangers 4E and 4F, three electric valves 4D, and a control signal conversion 4G and several thermocouples 4H. The module realizes rapid regulation of the reaction temperature and pressure in the microreactor.

[0068] Furthermore, when the real-time temperature data signal collected by the thermocouple 4H is sent to the embedded main control board 4A through the temperature transmitter 5E, it is different from the specific reaction set temperature. Among them, the high-temperature oil bath machine 4B and the low-temperature oil bath machine 4C output heat-conducting oil at a specific temperature, and the embedded main control board 4A automatically controls the temperature in real time according to the PID control algorithm program, and the control command signal is transmitted by the field bu...

Embodiment 2

[0079] The safety protection module includes an embedded main control board 7A, an uninterruptible power supply (UPS) 7B, a monitoring circuit 7C, a pressure relief valve 7D, a bursting disc 7E, and a normally open solenoid valve 7F. The production environment is protected in case of temperature, overpressure and accidental power failure in the factory area, and the monitoring circuit 7C monitors the operating status of the main control board in real time.

[0080] When overtemperature and overpressure occur in the entire production system, the active protection module of the safety protection system will operate. On the one hand, the temperature and pressure are lowered quickly through the reaction environment control module, and on the other hand, the valve 7F is closed to prevent safety accidents. Pressure relief valve 7D and burst disc 7E also play a role of passive safety protection against overpressure. When production is interrupted abnormally, UPS power supply 7B prov...

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Abstract

The invention discloses a microreactor production control system with a safety protection function. The microreactor production control system comprises a reaction environment control module, a feeding control module, a system working state and key operation parameter monitoring module, a man-machine interaction and data storage module, a plant-level production control communication module and a safety protection module. The reaction environment control module is used for automatically controlling the temperature and the pressure of the chemical reaction in a microreactor group. The feeding control module is used for automatically controlling the mass, the flow and the ratio of reaction materials. The plant-level production control communication module realizes a communication function between the whole microreactor production control system and a plant-level remote terminal. The system working state and key operation monitoring module monitors the temperature, the pressure, the flow and the valve opening and closing state in the system in real time. The man-machine interaction and storage module realizes monitoring data display and storage functions. The safety protection module realizes protection action when the whole production control system is overheated, overpressed, abnormally interrupted in production and the like.

Description

technical field [0001] The present invention relates to a micro-reactor production control system in the technical field of micro-chemical industry, in particular to a micro-reactor production control system with a safety protection function. Background technique [0002] Microreactor is a microreactor with a characteristic size between 10 and 300 microns (or 1000 microns) manufactured by precision machining technology. It is used in many fields and plays a huge role in the chemical industry. At present, microreactor technology, as an important technical means of chemical process intensification, has gradually become a hot spot in research and application. The core process of chemical production is "three transfers and one transfer". , heat transfer and other processes, the efficiency is increased by 10 to 100 times compared with conventional equipment. For some rapid reaction processes, microreactors have many advantages such as good safety, process controllability and dir...

Claims

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Application Information

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IPC IPC(8): B01J19/00B01J4/00
CPCB01J19/0053B01J19/0093B01J19/0006B01J4/008B01J4/001
Inventor 蒋军成倪磊卞海涛刘寅山
Owner NANJING UNIV OF TECH
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