In view of the analysis of the operation status of the controller of thermal verification furnace, the debugging method and its application technology are explored. The core purpose is to realize the rational application of the debugging method on the basis of improving the control technology of thermal verification furnace and to meet the core demand of the innovation and development of modern engineering technology. With the development of technology, the traditional engineering technology has been unable to meet the needs of modern construction. In some traditional engineering projects, thermostatic element the production technology is generally improved by manual operation.
This method has a relatively limited scope of verification and a relatively low qualification rate, which restricts the improvement of engineering construction effect. 。 For thermal verification technology, it is mainly in the field data measurement, through the analysis of physical parameters, the application of automatic verification technology. The purpose is to achieve the absorption of parameter signals through the detection of these data, and convert the parameters into electrical signals, so as to ensure the timeliness and effectiveness of monitoring and testing data. Moreover, in the application of this technology, the system can also be implemented to detect the operation status of the system. When problems are found, the system will alarm to help the inspectors take appropriate protective measures. For the detected signal, the multi-channel switch will be used to collect the data tables, and the computer will output the power of the main box controller according to the requirements of the system program, so as to ensure the rationality of the operation and debugging of the thermotechnical verification furnace controller and the effectiveness of the equipment utilization [1]. In the operation of the control system of the thermotechnical verification furnace, because of the analysis of the power condition of the controlled verification furnace and the control of the high current on-off of the AC contactor, 220V AC will be used in the system control. When the AC is connected to the leakage protection system, the harm caused by the leakage fault to the personal operation can be avoided and the engineering installation can be improved. Stability of standby operation. At the same time, in the process of verifying furnace control, different functions should be adopted through the system integration of control system'”power switch” and “heating switch” to realize the disconnection of power supply. In the process of power-on of equipment system, it is necessary to turn on the “main switch of power supply” to ensure the rationality of parameter adjustment. In the process of using the thermotechnical verification furnace controller, the connection diagram of the temperature control module of the thermotechnical verification furnace controller is determined, and the connection diagram of SR93 temperature control module is determined, as shown in Fig.
1. Eleven and twelve terminals in Fig. 1 need to be connected with 220V AC power, and the verification circuit should be connected at thirteen terminals to control them so as to realize the “common ground” processing of the system operation. Seven and ten terminals of the system need to be connected with thermocouple sensors.
Temperature feedback signals are used to control the debugging and operation of the system during the whole process to ensure that the temperature signal is reversed. Timeliness of feedback.
In the control system of thermotechnical verification furnace, one, two and three terminals will be used as serial ports in the system, and they will be used as output ports to control the current operation. Then RS232 control line is used to shield the signal to prevent the problem of interference. In the PID control algorithm, as a classical automatic control algorithm, the actuator is an important form of work in the system operation.
This type of work can be adjusted, that is, to integrate the system operation status from the stop state to the full load state, in order to achieve the full load operation purpose. At the same time, in the system operation and project innovation, the KP, KI and KD control constants should be set reasonably, and the requirements of automatic control should be clear, so as to achieve the scientific nature of system control and ensure the safe operation of the system. In the process of system response, the solutions to overreaction need to be embodied in the following aspects: first, KI system can cooperate with KP to improve the control effect; second, KD output is mainly to resist the drastic changes of the system, so as to produce advanced control effect and provide support for the operation of the control system. In thermotechnical verification control, through the reasonable integration of control parameters, the data can be recorded and analyzed many times, and the reasonable control of parameters can be realized [2]. In the process of debugging and application, the relevant personnel should realize the importance of communication format adjustment in order to realize the effective integration of data resources and information systems and improve the value of system operation. For example, in the operation of SR93 temperature control module, the data can be sent to the communication format through the connection of RS232, RS485 and other communication systems, and the communication connection of thermal verification furnace can be realized in an all-round way.
Moreover, in the integration of communication connection methods, we should design the operation scheme of the verification furnace control software system through the determination of data transmission and response schemes.
For the temperature control detection schemes in different stages, it is necessary to realize the dynamic control of the thermotechnical verification furnace controller through the analysis of the PID parameters in the temperature verification point, so as to fully ensure the rationality of the operation of the communication format [3]. In a word, in the process of debugging and application of thermotechnical verification furnace controller at this stage, the relevant designers should integrate the use technology through the analysis of the design scheme and realize the advantages of the debugging method of thermotechnical verification furnace controller. In the whole system integration, the hardware connection system and the PID control algorithm should be adopted.
The determination of communication module and the selection of communication module can improve the stability of the thermotechnical verification furnace controller, effectively improve the debugging function of the thermotechnical verification furnace controller, and promote the stable development of industrial industry.