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Case analysis of hot water infrared radiation heating for building with large space-4

time：2023-06-14
hits：1443次
source：正弘奧能

Buildings with a space height greater than 5m and a volume greater than 10,000 m3 are called tall space buildings.Due to the large height drop and volume of the tall space, the heat generated in the room rises upward and accumulates a lot of heat at the top, resulting in a large vertical temperature gradient in the whole space and temperature stratification.The outer wall of the tall space and the floor area is relatively large, resulting in the external interface has a greater impact on the natural convection of the indoor space, and it is easy to cause cold air around in winter.Therefore, traditional convection heating methods such as radiators and radiators cannot meet the heating needs of tall Spaces.


	 


	The ceiling hot water radiation panel is a kind of metal radiation panel, which can be used for comprehensive heating of buildings with a height of 3m~30m and local area or local working place heating.The working process of the hot water radiation panel converts heat into infrared radiation through the surface radiation coating, because the radiant heat is not absorbed by the atmosphere, but is absorbed by various objects such as buildings, human bodies, equipment and so on, and is converted into heat energy.The body that absorbs the heat rises in temperature, and once again heats other objects around it, such as air, in the form of convection.Therefore, the atmospheric temperature inside the building will not produce serious vertical imbalance.Therefore, it has a high utilization rate of heat energy and makes the human body feel very comfortable.Therefore, hot water radiant panel heating is the ideal heating method for tall space industrial plants.


	 


	<img src="http://www.sylyby.cn/Uploads/image/20230614/20230614164755_64873.png" alt="" /> 


	 


	Hot water infrared radiation heating technology application example -- China Southern Airlines Daxing new airport international cargo terminal project 


	 


	Project Overview: 


	The project is located in the Southern Airlines International Cargo Zone of Beijing New Airport, with a total construction area of 23,800 square meters, the height of the attached office building is 19.1 meters, and the height of the freight operation area is 15.9 meters.The freight warehouse is an operational logistics building, and the storage area in the building is relatively small compared with the logistics production area of the building, which ensures the temperature and comfortable feeling of the staff when working.


	 


	Project features: 


	1. Large area of doors and Windows, large heat transfer coefficient of enclosure structure.


	2. The temperature gradient in the building is large, and the air stratification is more serious, resulting in heat on the top and cold on the bottom, resulting in faster heat dissipation on the roof.


	3. The outer wall and the floor area of the tall space are relatively large, resulting in a greater impact of the external interface on the natural convection of the indoor space, and it is easy to cause cold air to fall around in winter.


	4. The door of the building is frequently opened, and the cold air incurs great heat consumption.


	 


	The hot water radiant panel adopts an innovative design concept, with the pipe as the warmest part of the panel, completely down, and 70% of the surface is wrapped by the metal plate (the wrapping Angle is more than 280°), which increases the heat transfer area and perfectly ensures the transfer of heat from the tube to the plate.


	 


	<img src="http://www.sylyby.cn/Uploads/image/20230614/20230614164811_24136.png" alt="" /> 


	 


	The hot water radiant panel is prefabricated in the factory into a standard length of 3 meters, 6 meters (special requirements can be prefabricated 2 meters, 4 meters).Each radiant panel can be connected by quick joint or welding.Each radiant panel and collection pipe is prefabricated in the factory and tested for safety.The bracket of the suspension plate is welded together with the radiant plate, one per meter, which greatly guarantees the flexibility of the installation.

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Case analysis of hot water infrared radiation heating for building with large space-4