Energy-saving and environment-friendly heat-dissipating device

Abstract

The invention discloses an energy-saving and environment-friendly heat-dissipating device which comprises a furnace body. A feeding device is arranged on one side of the furnace body, a water wall isfixedly arranged on the inner wall of the furnace body, a descending pipe is fixedly arranged on the outer wall of one side of the furnace body, a steam drum is fixedly arranged at the upper end of the descending pipe, a primary superheater is fixedly mounted on the inner wall of the upper end of the furnace body, a smoke exhaust pipeline is fixedly arranged on one side of the upper end of the furnace body, the smoke exhaust pipeline is in a Z-shaped structure, a secondary superheater is fixedly arranged on the inner wall of the upper end of the smoke exhaust pipeline, and a preheating deviceis arranged in the middle of the smoke exhaust pipeline. The energy-saving and environment-friendly heat-dissipating device can adjust the air inflow and the coal adding quantity automatically according to temperature in the furnace, so that it is ensured that the temperature in the furnace is stable. The energy-saving and environment-friendly heat-dissipating device not only can improve the evaporating efficiency of water in the water wall, but also can cool flue gas in the smoke exhaust pipeline, so that heat in the flue gas lost in air can be reduced, the surrounding ecological environmentis protected, and kinetic energy of flue gas discharged by a chimney can be used to generate electricity, so that waste of resources is reduced.

Description

technical field [0001] The invention relates to the field of energy-saving thermal power generation devices, in particular to an energy-saving and environment-friendly cooling device. Background technique [0002] Thermal power generation is a power generation method that uses the heat generated by combustibles during combustion and converts it into electrical energy through a power generation unit. By the late 1980s, the largest thermal power plant in the world was Kagoshima Thermal Power Plant in Japan, with a capacity of 4,400 MW. However, too large a unit brings about a reduction in reliability and availability. Therefore, by the early 1990s, the capacity of a single thermal power generation unit was stable at 300-700 MW. , which accounts for more than 70% of China's total installed capacity. Coal used in thermal power generation accounts for more than 50% of industrial coal. At present, coal used for power generation and heating in my country accounts for about 50% of...

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Problems solved by technology

However, although the flue gas discharged from boilers in the prior art has a low sulfur dioxide content, it still contains a large amount of heat, which is lost in the air, which not only causes the temperature of the surrounding environment to rise, destroys the ecological balance, but also is a resource waste of

[0004] On the other hand, in the existing technology, it is almost true how to use and recover the heat in the fuel furnace as much as possible, but considering the technical limitations and heat absorption characteristics, so the improvement of energy absorption is limited, and it does not reflect heating at present. The relationship between the fuel and the temperature in the exhaust pipe. In fact, if the fuel or air is not reasonable enough, it will lead to insufficient combustion or unstable power generation

[0005] However, for the problems in related technologies, no effective solutions have been proposed

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