The heat pipe heat exchanger is a kind of utilization of desulfurization of flue gas waste heat of the flue gas after the original heating and heat exchanging equipment. Process: the use of the original flue gas desulfurization of 130-150 ℃, the net flue gas heating 45-55 ℃ to 80-85 ℃ to reduce emissions, flue gas corrosion on the chimney, but also conducive to the flue gas diffusion, to avoid the formation of plume.
Gas heat exchanger has the following characteristics:
1, high heat transfer efficiency. Gas heat exchanger in the heat pipe, the cold, hot side can according to the need of using high frequency welded fins to enhance heat transfer, make up the gas - gas heat transfer coefficient of the heat exchanger is low.
2, can effectively avoid the cold, hot fluid stream. Each heat pipe is sealed unit is relatively independent, heat pipe evaporator and condenser in a whole, the two space, cold, hot fluid flow in the tube, the middle seal plate of cold, hot fluid separated by tight.
3, can effectively prevent the dew point corrosion. The heat transfer area or the number of hot and cold side heat pipe than by adjusting the heat pipe, the heat pipe wall temperature increase to above the dew point temperature.
4, can effectively prevent dust. Design of heat exchanger with variable section structure, to ensure that the fluid inlet and outlet, velocity flow, achieve the purpose of cleaning.
5, operation and low maintenance cost. Because no rotating parts, belongs to static equipment, no additional power consumption, low operation cost; in addition, simple operation and maintenance, no need to spare, spare parts, even though some components are damaged, will not affect the normal production.
6, the system's heat, without external heat source.