Temperature control system and method for heat accumulation type incineration and deodorization stove

Abstract

The invention relates to a temperature control system and a method which are used for a heat-storage deodorizing incinerator. The heat-storage deodorizing incinerator comprises a plurality of heat-storing bodies, a heat supplying device used for providing fuels and a temperature control system. The temperature control system comprises a plurality of temperature detecting devices, signal processing-calculating components and temperature controllers which are respectively arranged on the heat-storing bodies. The signal processing -calculating component can output an average temperature signal ofthe heat-storing bodies and makes use of the temperature controller for regulating the fuel flow in the heat supplying device.

Description

Technical field [0001] The invention relates to a temperature control system and method for a regenerative incineration deodorizing furnace. Background technique [0002] In the existing process of Refused Derived Fuel (RDF-5), a Regenerative Thermal Oxidizer (RTO) is often used to deodorize the organic waste gas generated during the drying process before being discharged. To reduce the cost of this drying process, please refer to figure 1 , The traditional regenerative incineration and deodorization furnace 10 includes two regenerators 11, 14, intake and exhaust equipment 12, temperature control system 13, heat supply 15 and burner 16 (please refer to figure 2 ), the temperature control system 13 enables the heat supplier 15 to provide heat energy to the heat storage bodies 11, 14 and heat it to 800°C, and the two heat storage bodies 11, 14 alternately recover the heat energy for use in 30 seconds. The use of the thermal incineration deodorizer 10 can effectively incinerate the...

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Problems solved by technology

[0003] figure 2 The schematic diagram showing the temperature control of the traditional regenerative incineration deodorizer 10, in fact, when the temperature in the regenerative incineration deodorizer 10 rises to 800°C, it should continue to maintain this temperature, but due to the traditional regenerative incineration deodorization Furnace 10 is operated by alternately switching regenerators 11 and 14 in 30 seconds, so the temperature on regenerators 11 and 14 will have a large up and down vibration deviation around 800°C, which cannot achieve the best temperature control effect. In addition, the traditional temperature control method is to burn a fixed amount of air, but only change the flow of gas, please refer to figure 2 The temperature control system 13 includes two temperature detectors 131, 132, a temperature indicator 133 and a temperature controller 134, the temperature indicator 133 is electrically connected between the temperature detector 131 and the temperature controller 134, and the thermal The supplier 15 includes a gas source 151, a gas flow valve 152, an air source 153 and an air flow valve 154. The gas flow valve 152 is connected with the temperature controller 134 to control the gas source 151, while the air flow valve 154 is not connected with the temperature controller. The 134 connection only provides a certain amount of air to the burner 16. Since the traditional temperature detector 132 only detects the temperature, and the temperature signal will not be transmitted to the temperature controller 134, when the temperature detector 131 detects the temperature of the heat storage body 11 When the temperature is lower than 800°C, the temperature controller 134 will control the gas flow valve 152 to increase the gas flow. At this time, the regenerators 11 and 14 will heat up rapidly. When the temperature detector 131 detects that the temperature of the regenerator 11 exceeds At 800°C, the temperature controller 134 will control the gas flow valve 152 again to reduce the gas flow. At this time, since the air flow remains unchanged, too much cold air will enter the regenerators 11 and 14, causing the regenerator 11 , 14 will rapidly cool down. It can be seen that because the traditional regenerative incineration deodorizer 10 cannot control the flow of air and gas at the same time, it cannot provide the correct air-fuel ratio and increase the combustion efficiency. In addition, because the traditional regenerative incineration deodorizer 10 The inability to provide a stable combustion temperature not only reduces the efficiency of the regenerative incineration and deodorization furnace 10 in treating organic waste gas, but also consumes more fuel between repeated heating and cooling.

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