Gas electric heating device

Abstract

The invention discloses a coal gas electric heating device which comprises a pressure outer cylinder, opening bolts at two ends of the pressure outer cylinder are connected with end socket flanges, a gas outlet flange is arranged at the top of the pressure outer cylinder, a gas outlet pipe is arranged in the flange, a gas inlet flange is arranged at the bottom of the pressure outer cylinder, and a gas inlet pipe is arranged in the flange. A heating module is arranged between the air inlet pipe and the air outlet pipe and located in the wind shielding sleeve, the top and the bottom of the heating module are both in threaded connection with a long graphite conductive plate and a long fire-resistant support and are in threaded connection with a conductive graphite plate through the long graphite conductive plate and the long fire-resistant support, and the center of the conductive graphite plate is in threaded connection with a graphite electrode bar. A bottom support fixing plate is fixedly connected to the position, close to the bottom, of an inner cavity of the outer pressure cylinder, a through hole is formed in the center of the bottom support fixing plate, and a fire-resistant insulating supporting cylinder abuts against the position between the bottom support fixing plate and the bottom conductive graphite plate. Compared with a traditional heat accumulating type preheater, the electric heating coal gas device is high in heat exchange efficiency due to the fact that gas makes direct contact with the heater, simple in structure and high in safety.

Description

technical field [0001] The invention belongs to the field of electric heating, in particular to a gas electric heating device. Background technique [0002] Under the "dual carbon" goal, the cost of using fossil energy will continue to rise, and as the country vigorously advocates the development of green power and energy storage technologies, the cost of electricity will gradually decrease and the competitiveness will gradually increase. At the same time, with the maturity of electric heating technology and the gradual realization of benefits, electric energy will be widely used as the final consumption energy. Most of the existing non-electric heating devices in the metallurgical field will be gradually updated and replaced by electric heating devices. [0003] The steel industry is a pillar industry in the metallurgical field, and it is also a problem industry that emits a large amount of greenhouse gases. Therefore, it is the general trend to build a clean, low-carbon, s...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a gas electric heating device, which solves the problem of low heat exchange efficiency of existing heaters; helps to reduce the erosion of the insulation layer by high-temperature and high-pressure gas, and prolongs the life of the equipment

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