Combined type grate-fired heater

Abstract

The invention provides a combined type grate-fired heater which is mainly composed of an outer water jacket, an inner water jacket, a tail gas collecting shell and a flaming combustor. The outer waterjacket, the inner water jacket and the tail gas collecting shell are respectively sleeved and combined from outside to inside. The flaming combustor is arranged on a combustor interface of the outerwater jacket and is communicated with a combustion cylinder. An annular gas cavity is formed between the combustion cylinder and the inner water jacket. An annular tail gas cavity is formed between the inner water jacket and the outer water jacket. An annular tail gas collecting cavity is formed between the outer water jacket and the tail gas collecting shell, each of the inner water jacket and the outer water jacket is provided with a liquid inlet and a liquid outlet, two sleeve holes allowing the liquid inlet and the liquid outlet of the inner water jacket to pass through are formed in a bottom of the tail gas collecting shell, and a tail gas outlet is formed in the periphery of the shell.

Description

Technical field [0001] The invention relates to the technical field of heaters, in particular to a combined stratified combustion heater. Background technique [0002] With the development of industry, heaters are used in various industrial heating applications, as well as preheating for cold start of engines, and for heating various spaces that require heating. [0003] At present, the conventional heaters are mainly fuel or gas heaters because of their flexibility and stable heat source. Conventional oil or gas heaters are mainly composed of fans, burners, combustion chambers, and water jackets. Only the area of ​​the inner wall of the water jacket is actually in contact with the heat source during operation, although many water jackets are also equipped with heat sinks. However, due to the limited contact area with the heat source, the heat energy of the heat source is not fully utilized. Finally, most of the heat is wasted as the high-temperature exhaust gas is discharged. At ...

AI Technical Summary

Problems solved by technology

Conventional oil or gas heaters are mainly composed of fans, burners, combustion chambers, and water jackets. During work, only the inner wall of the water jacket is in contact with the heat source and absorbs heat. Although many water jackets are equipped with heat sinks , but due to the limited area in contact with the heat source, the heat energy of the heat source is not fully utilized, and finally most of the heat is wasted with the exhaust of high-temperature exhaust gas, and it is also easy to increase emissions due to incomplete combustion of fuel. Pollution

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