Series reheating type negative pressure boiler

Abstract

The invention discloses a series reheating type negative pressure boiler which comprises a first-stage boiler, a second-stage boiler, a third-stage boiler, a fourth-stage boiler and a movable hearth. The upper end of one side of the first-stage boiler is fixedly connected to the upper end of the surface of one side of the second-stage boiler through a connecting pipe; the lower end of the side, away from the first-stage boiler, of the second-stage boiler is fixedly connected to the lower end of the surface of one side of the third-stage boiler through a connecting pipe, and the upper end of the surface of the side, away from the second-stage boiler, of the third-stage boiler is fixedly connected to the upper end of the surface of one side of the fourth-stage boiler through a connecting pipe; through the arrangement of the first-stage boiler, the second-stage boiler, the third-stage boiler and the fourth-stage boiler, after raw materials are combusted in the movable hearth, heat generated by combustion of the raw materials is directly guided into a gas storage tank through heat conduction pipes arranged at the upper ends of the first-stage boiler, the second-stage boiler, the third-stage boiler and the fourth-stage boiler, and then the heat is directly put into use through a using pipe, so that the combustion utilization rate of fire coal is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of negative pressure boilers, and in particular relates to a series reheating negative pressure boiler. Background technique [0002] Negative pressure is a state of gas pressure lower than atmospheric pressure. 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 original meaning of the pot refers to the water container heated on the fire, and the furnace refers to the place where fuel is burned. The boiler includes two parts: the pot and the furnace. 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 th...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the existing defects and provide a series-connected reheating negative-pressure boiler to solve the problem that the combustion utilization rate of coal is not high and wastes raw materials in the above-mentioned background technology

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