VOCs waste gas treatment device

Abstract

The invention discloses a VOCs waste gas treatment device. The VOCs waste gas treatment device comprises a first combustion chamber, a regenerative chamber, a second combustion chamber, an air inlet channel, an exhaust channel and a heat exchanger, wherein the first combustion chamber and the second combustion chamber are provided with combustors, and a regenerative structure is arranged in the regenerative chamber; the first combustion chamber communicates with the second combustion chamber through the regenerative chamber; the heat exchanger is a dividing wall type heat exchanger and is provided with a first channel, a second channel and a dividing wall, wherein the first channel and the second channel are separated by the dividing wall; the air inlet channel communicates with an inlet of the first channel of the heat exchanger, and an outlet of the first channel of the heat exchanger communicates with the first combustion chamber; the second combustion chamber communicates with an inlet of the second channel of the heat exchanger; and an outlet of the second channel of the heat exchanger communicates with the exhaust channel. The VOCs waste gas treatment device is good in heat exchange effect, simple in structure, gas path and control method and low in device cost.

Description

technical field [0001] The invention relates to an environmental protection device, especially a VOCs waste gas treatment device. Background technique [0002] VOCs (Volatile Organic Compounds) are volatile organic compounds. In the process of industrial production, a type of VOCs waste gas which is harmful to the environment is inevitably produced. In the prior art, there are mainly two kinds of VOCs waste gas treatment devices: TO and RTO. [0003] TO (Thermal Oxidizer) refers to a direct-fired exhaust gas treatment furnace. The combustible or high-temperature oxidatively decomposed VOCs exhaust gas is sent into the combustion chamber through the intake channel, and the auxiliary fuel is burned through the burner. Under the high temperature of the flame, the VOCs exhaust gas is converted into harmless substances and discharged through the exhaust channel. In order to recover heat, the improved TO adds a heat exchanger. The high-temperature gas after VOCs exhaust gas is o...

AI Technical Summary

Problems solved by technology

The three-tower RTO improves the environmental protection of the double-tower RTO, but due to the introduction of more regenerators, the structure is more complicated, there are more gas pipelines, the control method is more complicated, the cost is higher, and the later maintenance is more complicated. It is troublesome, and the introduction of cold air to clean the heat storage structure will cause energy loss

[0006] TO has a simple structure, simple gas path, low equipment cost, and is easy to popularize and apply, but the heat exchange effect is average, the heat recovery effect is average, and the energy consumption is high

Although there are RTOs with lower energy consumption available to replace TO in the existing technology, the complex structure of RTOs, high equipment costs, and troublesome maintenance in the later period are not conducive to popularization and application.

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