An improved heat recovery device for flue gas heat

Abstract

The invention discloses an improved heat recovery device for flue gas heat. The improved heat recovery device comprises a washing box and a heat exchange box, the outer side of the washing box is sleeved with the heat exchange box, and the heat exchange box and the washing box are all cylinders so that the arc-shaped surface of the entire washing box can be used as a heat exchange surface to be conductive to the improvement of the heat exchange effect; a water inlet pipe is arranged at the lower left side of the heat exchange box, a water outlet pipe is arranged at the upper right side of theheat exchange box, and a temperature sensor for detecting a water temperature is arranged inside the heat exchange box; and a buffer box is fixed at the middle position of the upper end of the washingbox, and an air intake pipe is arranged at an air inlet end of the left end of the buffer box. According to the improved heat recovery device for the flue gas heat, the structure is simple and reasonable, and the arc-shaped surface of the entire washing box can be used as a heat exchange surface to be conductive to the improvement of the heat exchange effect; and a first-stage mixing mechanism and a second-stage mixing mechanism enable flue gas to be fully mixed with water, thereby greatly improving the washing effect for the flue gas and being highly practical.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to an improved heat recovery device for flue gas heat. Background technique [0002] The boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power device, or converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used in daily life, and also have a small amount of application in industrial production. Boilers that generate steam are called steam boilers, often referred to as boilers, ...

AI Technical Summary

Problems solved by technology

[0003] Existing boilers emit a large amount of flue gas when using fuel combustion to provide heat. The flue gas contains dust and heat, which not only pollutes the environment, but also wastes a lot of heat

[0004] In order to solve the above problems, the existing patent notification number is CN206582879U, which discloses a heat recovery device, but the heat exchange area of ​​this heat recovery device is too small, which is not conducive to improving the heat exchange effect, and when this device is working, Cannot show sufficient contact of water and air, resulting in poor washing effect

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