A fully automatic airflow purification cycle control system based on optical fiber communication

Abstract

The invention discloses a full-automatic airflow purification and circulation control system based on optical fiber communication. The full-automatic airflow purification and circulation control system comprises a frequency converter connected with an optical fiber serial port module, a relay module and a current acquisition module, wherein the frequency converter is connected with an alternating current servo motor; the relay module is connected with one end of a solenoid valve; the other end of the solenoid valve is connected with a 24-V direct current power supply module; the 24-V direct current power supply module is further connected with a thermocouple, a flow meter and a pressure sensor; the thermocouple, the flow meter and the pressure sensor are connected to the current acquisition module respectively; and the optical fiber serial port module is used for transmitting an acquired signal to measurement control software on a remote computer by an optical fiber serial port card. With the adoption of the full-automatic airflow purification and circulation control system, closed-ring fully automatic HPM (High Power Microwave) airflow circulation and purification can be rapidly realized by utilizing a gas circulation principle, so that a stable and lasting long-time working capability of ah HPM system is improved.

Description

technical field [0001] The invention belongs to the field of fluid automatic control in a high-power microwave (HPM for short) system, and in particular relates to a fully automatic air flow purification cycle control system based on optical fiber communication. Background technique [0002] In order to improve the insulation strength of the devices in the HPM system, prevent breakdown, and ensure the normal operation of the system, the existing HPM system will be filled with a mixed gas of nitrogen and sulfur hexafluoride. In the process of repeated work many times, the gas inside the HPM produces a large amount of heat, moisture and impurities. In a short period of time, if the large amount of heat, moisture and impurities accumulated in the HPM system cannot be dissipated, it will have a serious impact on the system and make the HPM Internal system device failure, discharge and other abnormal phenomena occur, resulting in the system not working properly. [0003] In orde...

AI Technical Summary

Problems solved by technology

In practical applications, this method of using fans to dissipate heat has the following problems: First: because the fan blows heat to the surrounding environment of the system instead of directly dissipating heat to the internal gas, the heat loss of the internal gas is relatively slow, resulting in working intervals. It takes a long time; second: when the system is working, impurities will be mixed into the gas, and the gas cannot be purified by fan blowing, and at the same time, the moisture generated inside cannot be removed in time; third: when the HPM system is working, it will produce strong radiation, Strong ionization, the practical application shows that this kind of strong electromagnetic interference environment has great interference on industrial electronic equipment such as fans, the work is unstable, and often stops working

Fourth: Turn off the fan when the HPM system is running, and turn on the fan when it stops. At present, it is controlled by manual judgment, and it is impossible to monitor the temperature, pressure and flow of the internal gas in real time.

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