Stainless steel heat exchange tubes on heat exchangers should have been developed in the 1970s. Compared with general heat exchangers, stainless steel heat exchangers have many advantages
(1) High heat transfer efficiency. Especially for gas-gas heat exchangers, since both hot and cold gases can flow outside the tube, fins can be added to the stainless steel heat exchange tube on both sides to increase heat exchange. area to make up for the weakness of the low gas heat transfer coefficient. In addition, it is also easy to design the heat exchanger into countercurrent, fork row and other types to maximize the efficiency of the heat exchanger.
(2) Small pressure loss Because the flow is outside the tube, the flow resistance in the device is small, and the pressure loss is small, which can reduce the power consumption of the fan.
(3) Because the work is reliable and there is no moving part, there is no additional power consumption.
(4) The structure is compact, the unit heat exchange area is large, and the channel is simple.
(5) No mixed pollution, the middle partition can be used to effectively isolate the two fluids. When the requirements are high, two layers of partitions can be used to completely prevent the problem of lateral mixed pollution.
(6) The range of size changes is large, and it can be made into a standard stainless steel tube assembly model, which can change the direction of fluid flow and is easy to use.
(7) Low maintenance cost, no wearing parts, simple and reliable sealing, easy to clean
Stainless steel heat exchangers have the above advantages and are widely used in industrial waste heat recovery, becoming one of the important means to save energy consumption. The recovered waste heat can be used for air conditioning and heating the supply air for industrial processes. According to the US Q-Dot company data, stainless steel heat exchangers have been used in air dryers, paint drying furnaces, bleaching furnaces, brick kilns, grain dryers, chain drying furnaces, etc. In addition, it has also been practically applied in welding and electroplating technology, molding technology, coating technology, pharmaceuticals, fertilizer production, pollution control, freezing technology, spray drying technology, tanning technology, heat treatment of textile raw materials, waste steam recovery, etc. Stainless steel Tube
Stainless steel heat exchangers are also widely used in building air conditioning, heating, ventilation, summer cooling. Using recovered industrial waste heat for air conditioning can be used in hotels, shops, hospitals, residences, office buildings, stations, schools, etc.