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Design specification of gas radiant heating equipment and application in large-space industrial heating

time：2024-11-19
hits：416次
source：正弘奧能

Many studies have found that gas infrared radiation heating has many advantages, especially in the heating of high-ceiling industrial workshops in northern areas. Compared with traditional convection heating methods, the gas radiation heating system not only reduces energy consumption, but also reduces energy costs and saves operating costs for enterprises. What are the precautions for installing gas radiation heating systems in industrial buildings? 
 
The relevant provisions of the Code for Design of Heating, Ventilation and Air Conditioning of Industrial Buildings (GB50019-2015) should be followed when designing indoor temperatures using gas radiation heating equipment. 
 
5.5 Gas Infrared Radiation Heating 
 
5.5.1 In areas without electrical explosion protection requirements, it is economically and technically reasonable to use gas infrared radiation heating. When using gas infrared radiation heating, the following provisions shall be complied with: 
 
1. When the maximum concentration of flammable substances that may occur does not exceed 10% of the lower explosive limit, the burner should be located outdoors. 
 
2. When the burner is installed indoors, safety ventilation measures should be taken and the relevant provisions of the current national standard for urban gas design Code GB 50028 should be complied with. 
 
5.5.2 Gas infrared radiation heating is strictly prohibited for use in Class I and Class II production workshops and warehouses. 
 
5.5.3 The fuel for the gas infrared radiation heating system should meet the requirements of urban gas quality and be suitable for natural gas. Liquified petroleum gas and artificial coal gas may also be used. The gas inlet pressure should be compatible with the required pressure of the burner. The fuel should be fully vaporized. In areas with extremely cold and cold climates when using liquefied petroleum gas, measures should be taken to prevent the gas from liquefying again due to low pipe laying environment temperature. The gas quality and gas distribution system should comply with the current national standard "Design Code for Urban Gas Supply and Gas Utilization" (GB 50028). 
 
5.5.4 When gas infrared radiation heating is adopted, the heat load shall be calculated according to the provisions of this Code's Section 5.2, and the indoor design temperature shall be 2°C to 3°C lower than the air temperature for convective heating. When air is supplied to the burner from indoors, the heat load required to heat the air shall also be calculated. 
 
5.5.5 The installation height of gas infrared radiation heaters shall comply with the following provisions: 
 
The distance between the heater and the workpiece should be determined according to the radiation intensity and installation angle of the heater, production process requirements, and human comfort. Unless there are special requirements for the process, it should not be less than 3m. 
 
2.When used for fixed location heating, it should be installed above or to the side of the human body. 
 
3. When the installation height exceeds the maximum height for the rated heat output, an additional correction should be made to the total input heat of the heater. 
 
5.5.6 When gas infrared radiation heating is used for full-building heating, the heaters should be arranged along the exterior walls, and the heat output of the heaters should not be less than 60% of the total heat load. 
 
IMPRESIND gas radiant heating system promoted and sold by Beijing Leadway Power&nbsp;Co., Ltd. is an independent heating system consisting of a generator, a radiation tube, and an intelligent temperature control system. The generator burns natural gas, and the heated fluid, driven by a negative pressure centrifugal fan, flows through the aluminum-alloy steel radiation tube, generating infrared radiation and directly delivering radiant heat to objects and people in the heating area. 
 
IMPRESIND Gas Radiant Heating System uses infrared radiation heating technology. Infrared radiation has non-dispersive properties, so the energy is concentrated and the thermal effect is significant. The generator burns natural gas, and the heated fluid flows through the aluminized steel radiant tubes under negative pressure driven by a centrifugal fan. The high-temperature surface of the radiant tubes stimulates the generation of infrared radiation waves, which direct heat downwards to directly heat the area being radiated. At the same time, the heated fluid in the radiant tubes undergoes heat exchange after being used, and part of the products are directed through the pre-mix chamber to be used for flue gas recirculation for secondary heating, effectively utilizing energy and significantly improving the heating efficiency. The system achieves flameless heating and completely safe operation and negative pressure operation, providing a reliable guarantee for the safe operation of the heating system. 
 
The gas radiation heating system can arrange the radiation tubes panel according to the location of the working area in the building, which can effectively improve the utilization rate of heating equipment. The radiation tubes panel can be installed on the steel beams in the workshop, without occupying the floor area of the working area, effectively increasing the usable area of the processing workshop, both beautiful and practical. The system is suitable for high-ceiling spaces, large air exchange, local heating, and intermittent heating in high-ceiling spaces, and its economic benefits are very significant. Its application range is very wide, including factory workshops, large dry docks, ships, aircraft, railway and automobile maintenance halls, etc. in many occasions. The heating in the industrial field involves different functional spaces and different temperature requirements.

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Design specification of gas radiant heating equipment and application in large-space industrial heating