Reverse fuel gas radiation device and method
A radiant device and gas technology, applied in combustion methods, heating devices, gas fuel burners, etc., can solve problems such as low heat energy utilization, unsuitable materials, and incomplete combustion, so as to eliminate hidden dangers of explosion and suppress internal combustion. The temperature is too high to solve the effect of incomplete combustion
Inactive Publication Date: 2016-01-27
上海蓝炽热能科技有限公司
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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 interior of the gas radiator with the combustion air, and the dust may accumulate on the inside of the Ducet gas radiator after long-term use Pipeline, thus affecting the input speed of premixed gas, once the input speed of premixed gas is lower than the burning speed, it will cause flashback and cause explosion
Method used
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Embodiment 1
[0067] A reverse gas radiation device, including a box 7 and a radiation generator, the box 7 is installed outside the radiation generator, the radiation generator includes an entrance 1, an injection tube 2, from top to bottom, Diffusion chamber 3, combustion part 4; Injection port 1 includes gas injection port 11 and air inflow port 12, Injection port 1 is connected to an external gas supply device, and gas is injected with a low-power gas nozzle; The outer wall of injection pipe 2 includes cooling fins 23, The cooling fins 23 are uniformly distributed on the outer wall of the ejector tube 2 . The outer edge of the heat sink 23 is a circular sheet protruding; the inner side of the ejector tube 2 is a mixing part 21 and a diffusing part 22 from top to bottom, the mixing part 21 is a vertical hollow cylinder, and the diffusing part 22 is a vertical hollow cone Shaped cylinder, there is an outward inclination angle of 8° between the diffusion part 22 and the mixing part 21. Th...
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The invention discloses a reverse fuel gas radiation device and method. The reverse fuel gas radiation device comprises a box body and a radiation generator. An entrance port of the radiation generator is arranged in a medium-pressure bin of the box body, the other parts of the radiation generator are arranged in an atmospheric pressure bin of the box body, and the pressure in the medium-pressure bin is slightly larger than the atmospheric pressure. The reverse fuel gas radiation device and method achieve small-power reverse burning, and it is guaranteed that basically no dust exists in premixed fuel gas input by the radiation generator on the whole.
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 applied in industrial heating and drying processing. 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. Obvi...
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IPC IPC(8): F23D14/04F23D14/14F23D14/46F23D14/78F26B23/02
Inventor 徐进赖劲军
Owner 上海蓝炽热能科技有限公司