Normal-pressure water heating device using heat energy of flue gas

Abstract

The invention relates to a normal-pressure water heating device using heat energy of flue gas and particularly relates to the normal-pressure water heating device using the heat energy of the flue gas, which utilizes the heat energy of household garbage combustion flue gas. Most small-size garbage combustion devices in a current market are not provided with a high-temperature flue gas residual heat component in a flue gas treatment system; the effect is not very ideal even if the device has the effect, and the actual effect and the application range are limited. The normal-pressure water heating device comprises a device main body, and a water tank main body and a flue gas flowing channel which are arranged in the device main body; the flue gas flowing channel is divided into a plurality of grades of heat exchanging flues and plurality of grades of heat exchanging flue gas tubes; the adjacent heat exchanging flues are communicated by the heat exchanging flue gas tubes. The normal-pressure water heating device using the heat energy of the flue gas, provided by the invention, has the advantages that the cold-heat exchanging efficiency is high, the structure and the operation procedure are simpler, the operation cost is low, the water tank main body is operated at a normal-pressure state all the time, the water capacity is greater, the checking and cleaning are very convenient, the application range is not affected and the garbage is sufficiently combusted.

Description

technical field [0001] The invention relates to a flue gas heat energy utilization device, in particular to a normal-pressure hot water device utilizing flue gas heat energy for utilizing domestic waste incineration flue gas heat energy. Background technique [0002] At present, most of the small waste incinerators in the market are not equipped with high-temperature flue gas waste heat components in the flue gas treatment system. Even if the effect is not very ideal, the actual effect and scope of use are limited. Some even need to add auxiliary fuel, which fails to achieve the purpose of energy saving in the true sense. [0003] The patent document with the Chinese patent number ZL200910246580.1 discloses a patented technology of "device for harmless treatment of household waste". In the flue gas treatment system, the upper parts of the unit components "flow rate control box" and "turbulent flue gas flow path" are respectively equipped with waste heat utilization hot wat...

AI Technical Summary

Problems solved by technology

This patented technology adopts a lot of air branch pipes on the inner wall of the furnace to increase oxygen. Since it is outside the garbage, the oxygen increase effect is difficult to meet the requirements.

In addition, if the heat-absorbing tank is directly installed on the furnace body, the temperature of the furnace body will drop significantly, which will affect the full combustion of garbage.

[0005] To sum up: there are defects and imperfections in waste heat utilization technology, and the main body of the water tank cannot be guaranteed to operate under normal pressure all the time

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