Thermal switches play a very important role in our lives, as well as in industrial production, in which they are a very wide-ranging type of heat exchange, and they do a great deal of work in a great number of places, and today's mini-editor is here to present to you some of the principles and features of the counter-wing heat exchange。
Wing thermal switcher
From the heat transfer machine, the flannel heat exchanger still belongs to the shoulder arm. Its main feature is that it has an extended secondary heat transfer surface (fift), so the heat transfer process takes place not only on one heat transfer surface (separation board), but also on the secondary heat transfer surface. The heat of the high-temperature side medium, in addition to one surface pouring into the low-temperature side medium, transmits part of the heat along the height of the wing surface, i. E., the heat is poured into the partition in the direction of the wing height, and the heat flow is passed to the low-temperature side medium. Since the height of the wings is significantly higher than the thickness of the wings, the conductive heat in the direction of the height of the wings is similar to that of the average long guide. At this point, the thermal resistance of the wings cannot be ignored. The maximum temperature at both ends of the wings is equal to the temperature of the partition, which continues to decrease as the heat of the wings and the medium is fluidized until the temperature of the medium in the central wing region。
High heat transfer efficiency: owing to the unique structure of the wings, disturbances can be caused to the medium, resulting in a constant break-up and renewal of the thermal boundary layer, which increases the fluid-release heat coefficient。
Tight and compact structures: aluminium-wing heat-replacers typically have a heating area of 1500-2500 m2/m3, equivalent to 8-20 times the shell-replacers. The weight is only one tenth of the size of a tube-shell heat exchanger with the same heating area, while the amount of metal consumed per heat transfer area is several dozen times smaller than that of a tube-heater。
The range of adaptations is wide: it can be applied to heat exchange in different media, such as gas-gas, gas-liquid, liquid-liquid, and can be adapted to different conditions, such as reverse currents, misflows, multiple flows, multiple processes, etc., through the configuration and combination of streams. Thermal exchange of up to 13 share streams in the same wing-to-heater can occur simultaneously and can be extracted from different temperature points according to process needs. The applicable temperature range is -270°c ~ + 200°c, which is high because the aluminum foliage converter uses a welding process to collide between the wings and the partitions, so that some of the large fliers can reach 8 mpa。
These are some of the advantages of the flannel heat exchangers that you have described. When we need to buy heat exchangers later, the first thing we need to do is to select a suitable heat exchanger based on the working methods of different heat exchangers, which is a good option or is highly recommended。
