Positive power control method for multiple magnetic-control tube microwave chemical reactor

Abstract

The active power control method for multiple magnetron microwave chemical reactor features that programmable active power controller is set in the microwave chemical reactor and connected separately to the magnetrons through relays, so that the magnetrons may operate in different on-off states under the control of the chemical reaction controlling program. In the chemical reaction system and before abrupt temperature raise or suddenly changed microwave energy reflection, the number of magnetrons in use is reduced actively for safe operation of the system. After that, the number of magnetrons in use is increased gradually to raise the power of the microwave chemical reactor. In this way, the output power of the microwave chemical reactor is controlled for smooth change.

Description

technical field [0001] The invention relates to an active power control method of a multi-magnetron microwave chemical reactor, which belongs to the field of microwave chemical reaction. Background technique [0002] Compared with traditional steam, oil and electric heating methods, microwave heating has the advantages of high efficiency, fast and uniform heating, and can effectively promote the progress of chemical reactions and greatly increase the yield, so it has broad application prospects in the chemical industry. At present, microwave has been practically applied in the field of chemical production, such as drug synthesis, extraction of Chinese medicinal materials and rubber desulfurization. [0003] In the process of microwave heating chemical reaction, in order to make the reaction proceed safely and smoothly, a key issue is how to properly adjust the microwave output power, which has been a difficult problem in the application of microwave chemical reactors at home...

AI Technical Summary

Problems solved by technology

But in this way, the microwave output power is in a state of sudden rise and fall, not a smooth change process

Within 10 seconds of the magnetron working, the instantaneous power is still 1000W, which may also trigger "thermal runaway", resulting in the burning of reactants or products

For the consideration of the life of the magnetron, the time interval of the alternate work of the magnetron should not be too short, so the smooth change of the microwave output power is limited

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