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Chemical industry

Heat exchange technology

Update time 2021-03-08 00:43 Read
Heat exchange, also known as heat exchange, is a process in which heat energy is transferred from hot fluid to cold fluid indirectly (e.g. through the intermediate wall) or directly. Because of its complex properties, not only the heat conduction through the wall, but also the convective heat transfer and sometimes the radiation heat transfer of the fluid on both sides of the wall should be considered. In the chemical industry, the common heat exchange problem is that the temperature is not high, but there are many kinds and the calculation is very complicated. There are three kinds of heat transfer modes in industry: wall type, regenerative type and hybrid type.
Heat exchange is mainly carried out by heat exchanger. Heat exchanger is an energy-saving equipment for air conditioning exhaust energy recovery. Its main components are shell, heat exchange core and filter. Because the material with heat transfer and transmission performance is used in the heat exchange core, the exhaust air can be used to pre cool and dry the fresh air in summer and pre heat and humidify the fresh air in winter when applied to the air conditioning system, so that the fresh air load can be significantly reduced, so as to save the energy consumption of the cooling and heating system, which is very beneficial to the small scale of the system, saving the operating cost and reducing the peak power consumption. The total heat exchange efficiency is related to the structural characteristics of the heat exchange core, the air flow through the core, the air flow ratio of the two air streams passing through the core and the air inlet parameters.
Membrane air total heat exchanger
The energy in the indoor exhaust can be used to pre cool the outdoor fresh air, so as to reduce the energy consumption of the fresh air system. The application of total heat exchanger in the central air conditioning system can not only improve the indoor air quality, but also effectively reduce the fresh air load, reduce the installed capacity of cold and heat source equipment, improve the operation efficiency of the air conditioning system and save the operation cost of the system In order to give consideration to both energy saving and comfort, a total heat exchanger which can exchange heat and air at the same time is needed.
Air to air total heat exchanger with right angle cross serrated plate fin
It is one of the most representative materials of total heat exchanger, which is composed of specially processed separators and spacer plates. The flow path of air supply and exhaust is completely separated by the baffle, so that the air supply and exhaust will not be mixed together, and the fresh air can always be introduced. Through the special processing paper of the total heat exchanger material, the heat transfer of the temperature (sensible heat) between the exhaust gas and the feed gas passing through the material of the total heat exchanger is used for the heat conduction exchange by making use of its various properties such as heat passing and moisture permeability; the total heat exchange is carried out by using the special processing paper of the water vapor partial pressure difference and humidity (latent heat) passing through the partition plate. The total heat exchanger is a kind of fresh air exchanger, which is a kind of new air exchanger This kind of equipment does not need the main engine to provide cold and heat sources, and directly recovers the air in the air-conditioned room for heat exchange, which is known as energy saving and environmental protection. It is the standard configuration of healthy buildings and the ideal partner of air conditioning.
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