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Case analysis of gas infrared radiation heating in building with large space-4

time：2023-08-21
hits：1396次
source：正弘奧能

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		High space industrial plant heating has always been a headache for high space owners, especially factory workshop leaders.The insulation of the walls and roofs of tall space buildings is usually not very good, more doors and Windows cause strong cold air penetration, the use of central heating (or build their own boiler heating), the end of the heat sink heating, in the northern region can reach the standard of 5-10 degrees.The factory has a lot of investment, but the heating effect is general;The heating is affordable, but the running costs are too high.So, how to solve the tall space industrial plant?
	
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	Traditional convection heating, hot air in the tall space will produce a gradient effect, every 1 meter rise in height, the temperature will rise 1-1.5 degrees, the air is seriously stratified, hot under the cold, the roof heat loss is very large.Infrared radiation heating does not heat the air, only heating the human body and dense objects, so there is no thermal gradient.Compared with traditional heating, gas infrared radiation heating has the advantages of energy saving, environmental protection, less maintenance, automatic operation and so on.


	 


	Unlike traditional convective heat transfer, gas radiant heating does not directly heat the air, and there is almost no heat loss when the thermal radiation waves pass through the air.The heat energy is carried by infrared rays and directly sent to the hot object (ground, object, crowd) and is absorbed and stored. At the same time, low temperature radiation and convective heat transfer are also carried out between the heated objects, creating a warm and comfortable area within 2m above the contact surface.Infrared radiation heating can meet human comfort requirements at 3 to 5 ° C lower than the traditional heating air temperature, without heating the entire space air to a higher temperature, such as 18 ° C.In the physical examination to achieve the same heating effect, the heat load is lower, the indoor air temperature gradient is small, and the energy saving is more.


	 


	At present, the technology of gas radiation heating equipment is very mature, and it is completely feasible for the gas to be discharged directly to the outside after combustion, which meets the requirements of environmental protection.The hot fluid produced by the combustion of natural gas by the burner flows in the radiation tube under the drive of the exhaust fan (vacuum pump).The radiation tube is made of real double-sided aluminized black gray alloy steel, which greatly improves the radiation efficiency.No distortion, damage, corrosion resistance, oxidation resistance to ensure service life.The aluminized steel is subjected to high temperature heat treatment in a strictly controlled temperature and humidity environment (black and gray surface is not coated or painted), the surface heat radiation is more uniform, and the thermal radiation efficiency is higher, thus ensuring that the heat is more uniform, and the radiation conductivity and thermal efficiency of the aluminized steel radiation tube are still efficient and stable even after many years of use.After the heat exchange of the hot fluid inside the radiation tube is completed, part of the product will be recycled (about 40%) through the premix chamber, and the other part will be discharged outside by the exhaust fan.Secondary heating to achieve energy saving, environmental protection, high efficiency, reduce operating costs.


	 


	<img src="http://www.job00531.cn/Uploads/image/20230821/20230821111627_66535.png" alt="" /> 


	 


	Gas infrared radiation heating technology application example -- Changchun FAW automobile welding parts 20 million sets of production base plant


	 


	Project location:


	Tianjin Beichen equipment manufacturing Industrial Park


	 


	Project features:


	1. 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.


	2. The middle of the building is tall and has high temperature requirements, so it needs to be heated faster.


	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.


	 


	Usage:


	The total construction area of FAW's production base with an annual output of 20 million pieces of automotive welding parts is 180,000 square meters, of which the above-ground construction area is 114,420 square meters, the underground construction area is 5,580 square meters, the single area is 32,410 square meters, the eave height is up to 18 meters, the foundation pit depth is up to 6.5 meters, and the single span is 30 meters.Fill up to 40t.The project selected 14 sets of IMPRESIND infrared gas radiation heating TUB-ONE series products, fully reflects the advantages of high-power gas radiation heating equipment in tall space applications.

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Case analysis of gas infrared radiation heating in building with large space-4