Reverse gas infrared radiation device and reverse gas radiation method

Abstract

The invention discloses a reverse gas infrared radiation device and a reverse gas radiation method. The reverse gas infrared radiation device comprises a box body and a radiation generator, wherein an ejection tube and a combustion part of the radiation generator are arranged in an atmospheric pressure chamber of the box body; the atmospheric pressure chamber is communicated with a high pressure chamber; air pressure in the high pressure chamber is higher than atmospheric pressure. According to the reverse gas infrared radiation device disclosed by the invention, low-power reverse combustion is realized; through the design of the semi-closed atmospheric pressure chamber, the cooling effect on the air led into the high pressure chamber is greatly optimized.

Description

technical field [0001] The invention relates to the field of industrial heating and drying, in particular to a reverse gas infrared radiation device and a reverse gas radiation method used in industrial heating and drying. Background technique [0002] Utilizing the principle of thermal effect of infrared radiation on the resonance cracking of macromolecular water mass, it is a common technology in the field of industrial heating to evaporate and dry materials with infrared radiation. Compared with air convection drying, this technology has the advantages of low energy consumption and good drying quality. [0003] In practice, the generation methods of infrared radiation are mainly divided into two ways: electric heating ceramic plate radiation and electric heating infrared lamp tube. Both use electric energy to convert heat energy into secondary heating infrared radiation carrier. Energy is converted multiple times resulting in more energy consumption. Obviously, it is m...

AI Technical Summary

Problems solved by technology

The design of the reverse gas infrared radiator needs to solve two technical problems: 1. Reverse combustion will cause the premixed gas to be poured in from above the combustion plate, how to control the balance between the input speed of the premixed gas and the combustion speed; 2. How to restrain the upward conduction of heat , control the temperature of the gas infrared radiator to prevent the premixed gas from igniting and exploding inside the radiator

[0008] This technical solution has the following negative effects: 1. The speed of airflow input is much greater than the speed of combustion, there is a lot of excess air, the combustion is incomplete, and the utilization rate of heat energy is low; 2. The power of the burner remains high, which requires low-temperature heating Dry materials are not suitable

3. The source of infrared radiation is a heated metal mesh, resulting in uneven infrared radiation

[0010] In addition, because the reverse gas infrared radiation device adopts the reverse gas method of gas supply from top to bottom, the dust particles in the air will inevitably enter the gas radiator with the combustion air, and the dust may accumulate after long-term use. As a result, the input speed of the premixed gas is affected. Once the input speed of the premixed gas is lower than the combustion speed, it will cause backfire and cause an explosion.

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