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In chemical production, the reaction kettle heating and cooling temperature control system is a new type of laboratory temperature control equipment.
The temperature of the material entering the reaction kettle is limited, so heat exchange is performed before the material enters the reaction kettle to achieve the required temperature.
temperature
.
There are many factors that need to be considered in the selection of the heating and cooling temperature control system of the reactor, mainly including: heat load and flow rate, fluid properties, temperature, pressure and allowable pressure drop range, requirements for cleaning and maintenance, equipment Structural material, size, weight, price, usability and lifespan,
etc.
In the reactor, the main function of the heat exchanger is to transfer heat from the fluid with a higher temperature to the fluid with a lower temperature, so that the fluid temperature reaches the specified index of the process to meet the needs of the process
.
The nature of the fluid often has a significant impact on the choice of heat exchanger type, such as the physical properties of the fluid (such as specific heat capacity, thermal conductivity, viscosity), chemical properties (such as corrosiveness, heat sensitivity), scaling and whether there is corrosion Sexual particles and other factors
.
The cleanliness of the fluid and the easy-to-no structure sometimes play a decisive role in the selection.
For example, for the material that needs to be frequently cleaned of the heat exchange surface, an effective plate-fin type or other non-removable structure cannot be selected
.
Similarly, parameters such as the flow rate, working temperature, and pressure of the heat exchange medium are also very important in the selection.
For example, although the plate heat exchanger is compact and has good performance, due to the limitation of the structure and the performance of the gasket, when the pressure or temperature is slightly higher , or it is not applicable when the flow rate is large.
In the high temperature test, if the temperature change does not reach the temperature value, it is necessary to check the electrical system and troubleshoot one by one
.
If the temperature rises very slowly, it is necessary to check the air circulation system to see if the adjustment baffle of the air circulation is opened normally; otherwise, check whether the motor of the air circulation is running normally
.
If the temperature overshoot is severe, then it is necessary to tune the setting parameters of the PID
.
If the temperature rises directly, over-temperature protection, then the controller fails, and the control instrument must be replaced
.
The temperature of the material entering the reaction kettle is limited, so heat exchange is performed before the material enters the reaction kettle to achieve the required temperature.
temperature
.
There are many factors that need to be considered in the selection of the heating and cooling temperature control system of the reactor, mainly including: heat load and flow rate, fluid properties, temperature, pressure and allowable pressure drop range, requirements for cleaning and maintenance, equipment Structural material, size, weight, price, usability and lifespan,
etc.
In the reactor, the main function of the heat exchanger is to transfer heat from the fluid with a higher temperature to the fluid with a lower temperature, so that the fluid temperature reaches the specified index of the process to meet the needs of the process
.
The nature of the fluid often has a significant impact on the choice of heat exchanger type, such as the physical properties of the fluid (such as specific heat capacity, thermal conductivity, viscosity), chemical properties (such as corrosiveness, heat sensitivity), scaling and whether there is corrosion Sexual particles and other factors
.
The cleanliness of the fluid and the easy-to-no structure sometimes play a decisive role in the selection.
For example, for the material that needs to be frequently cleaned of the heat exchange surface, an effective plate-fin type or other non-removable structure cannot be selected
.
Similarly, parameters such as the flow rate, working temperature, and pressure of the heat exchange medium are also very important in the selection.
For example, although the plate heat exchanger is compact and has good performance, due to the limitation of the structure and the performance of the gasket, when the pressure or temperature is slightly higher , or it is not applicable when the flow rate is large.
In the high temperature test, if the temperature change does not reach the temperature value, it is necessary to check the electrical system and troubleshoot one by one
.
If the temperature rises very slowly, it is necessary to check the air circulation system to see if the adjustment baffle of the air circulation is opened normally; otherwise, check whether the motor of the air circulation is running normally
.
If the temperature overshoot is severe, then it is necessary to tune the setting parameters of the PID
.
If the temperature rises directly, over-temperature protection, then the controller fails, and the control instrument must be replaced
.
