Sealed heating system and heating method

Abstract

The invention provides a sealed heating system which comprises a circulation sealed structure which is composed of a combustion fan, a heater, a heat exchanger, a reactor and pipelines for mutually connecting the combustion fan, the heater, the heat exchanger and the reactor. The sealed heating system has the beneficial effects that compared with an opened type heating system, with same devices, the sealed heating system is relatively small in installation power, low in once investment cost and operation cost, short in starting time, convenient to operate and capable of ensuring that the system can be restarted within a short time, and a great deal of electric energy can be saved.

Description

technical field [0001] The invention relates to a heating device in the field of petrochemical industry, in particular to a closed heating system in a catalytic oxidation system. Background technique [0002] With the increasing environmental protection regulations and awareness of environmental protection, the control of low-concentration organic waste gas tail gas in the petrochemical industry is becoming more and more stringent. The use of catalytic oxidation technology to treat low-concentration tail gas is more and more widely used in the petrochemical industry. [0003] The catalytic oxidation (catalytic incineration) system uses noble metal platinum and palladium catalysts to catalytically incinerate the volatile organic compounds in the tail gas under the condition of 250-600 ℃, so that the organic compounds can be converted into carbon dioxide and water. However, when the whole device starts the heater, it often encounters that the power of the furnace heater is in...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the installed power of the electric heater used in the existing open electrothermal start-up catalytic oxidation system is large; the energy consumption in the process of electric heating is large, and it is easy to cause insufficient installed power to cause failure to operate. situation; high operating costs, long start-up time, etc.

[0006] The purpose of the present invention is mainly aimed at the disadvantages of the open heating system, cleverly through the pipeline circulation, to solve the shortcomings of the open system electric heater power is not enough to start the furnace and a lot of energy waste

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