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Heating mode design scheme for buildings with large and high space-2

time：2023-05-10
hits：1882次
source：正弘奧能

In recent years, our country tall space building got the advance rapidly development, a batch of new tall space buildings spring up quickly after the rain sort to appear.Most of the public buildings under construction or already built are high-space buildings. About 200 million square meters of high-space buildings are completed every year, and they are still growing at a rate of nearly 10 percent.


	 


	In terms of public and civil buildings, tall space buildings are mainly theaters, concert halls, great halls, gymnasiums, exhibition halls and other buildings.In terms of industrial buildings, there are mainly industrial workshops, shipbuilding and installation, aerospace testing and assembly, and so on.


	 


	The area ratio of outer walls around tall space buildings is large, resulting in increased heat exchange area, and the outdoor environment carries out heat exchange with the indoor space environment through large outer walls.The main way is natural convection, when the outdoor ambient temperature is low, the formation of cold air in the outer walls of the space building.It makes the convective heat exchange of the exterior wall of the building large.Tall space buildings relative to the general building for doors, large Windows, some buildings also have skylights.Because of the large thermal pressure caused by the temperature difference between indoor and outdoor buildings, the heat consumption of cold air intrusion and cold air infiltration is greater.The problem is particularly prominent in the industrial buildings with large space, which will increase a large amount of load for the northern winter wind area.


	 


	The appearance of tall space buildings makes the application of tall space heating technology become an objective demand.Therefore, it is necessary to determine the technical scheme according to the heating characteristics of tall space buildings.According to the building type and heating needs, the appropriate heating mode should be determined under the premise of ensuring the use effect. The system setting should be safe and reliable, easy to operate and maintain, and the heating characteristics of the tall space should be rationally utilized to improve the energy utilization efficiency.


	 


	<img src="http://m.daanda.com.cn/Uploads/image/20230510/20230510113231_63717.jpg" alt="" /> 


	 


	Ceiling hot water infrared radiation plate is a kind of metal radiation plate, can be used for the height of 3m~30m building comprehensive heating and local area or local working place heating, its use range is very wide, including large industrial plant, dock, ship, aircraft and automobile maintenance hall, exhibition hall, multifunctional gymnasium and many other occasions.


	 


	Ceiling hot water infrared radiation panel is a kind of heating equipment installed in the building indoor ceiling, through the way of infrared radiation heat transfer, its essence is heat radiation technology.The ceiling radiant panel is a heating system that takes the metal radiant panel combined with tube and plate as the radiant source, takes ordinary hot water and high temperature hot water as the medium, and arranges the radiant panel in series and strip, and is installed in the form of ceiling. This system is superior to the traditional convective heating and hot air heating equipment, and solves the problems of poor effect and high energy consumption of convective heating in tall space.It is a new heating technology for tall space buildings.


	 


	Ceiling hot water radiation panel in the process of hot water circulation, through the radiation surface of the medium heat into various wavelengths of infrared radiation and radiation into the heating environment, due to the small absorption effect of air on infrared, most of the infrared is absorbed by buildings, human bodies, equipment and other objects, energy storage, temperature rise, at the same time to heat the air around the environment temperature rise.Therefore, the air temperature in the building is lower than the object temperature in the infrared irradiation area (generally 2-3 degrees lower), so the air stratification and convection effect is reduced, and the heating system has a high utilization rate of heat energy and good comfort. A large number of projects at home and abroad show that this technology is an ideal heating method for tall space.


	 


	The hot water infrared radiation panel promoted and sold by Beijing Leadway Power Co., Ltd. is prefabricated into 3 meters, 6 meters (special requirements can be prefabricated into 2 meters, 4 meters) standard length in the factory.Each radiant panel can be connected by quick joint or welding. Each panel and collector is prefabricated and safety tested at the plant.The support of the suspension plate is welded together with the radiant plate, one per meter, greatly ensuring the flexibility of installation.The hot water radiant panel adopts an innovative design concept. The pipe, as the warmest part of the panel, is completely downward, and 70% of its surface is wrapped by a metal plate (covering an Angle of more than 280°), which increases the heat transfer area and ensures excellent heat transfer from the tube to the plate.

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Heating mode design scheme for buildings with large and high space-2