Vertical quartic reverse-burning boiler

Abstract

The invention relates to a vertical quartic reverse-burning boiler which mainly comprises a boiler body and a plastic smoke exhaust pipe, wherein an interlayer of the boiler body is internally provided with three groups of smoke pipes; a hearth of the boiler body is internally provided with a fire grate; the plastic smoke exhaust pipe is positioned on the top of the boiler body; the fire grate is horizontally arranged above 1 / 3 of the height of the boiler body; the top and the bottom of the boiler body are respectively provided with an upper and a lower smoke chambers, wherein the lower smoke chamber is divided into a first and a second lower smoke chambers by a clapboard; the first lower smoke chamber is communicated with the hearth and the first group of smoke pipes, and the second lower smoke chamber is communicated with the second and the third groups of smoke pipes; the upper smoke chamber is divided into a first and a second upper smoke chambers; and the first upper smoke chamber is communicated with the first and the second smoke pipes; and the second upper smoke chamber is communicated with the third group of smoke pipes and the plastic smoke exhaust pipe. The vertical quartic reverse-burning boiler adopts the interlayer of the boiler body to be matched with the upper and the lower smoke chambers of the boiler body, and completes quartic reverse-burning heat exchange of hot flue gas by using the three groups of smoke pipes, thus effectively improves the heat conversion efficiency of the boiler, and reducing the energy consumption; and the interlayer and the upper and the lower smoke chambers of the boiler body have reasonable design, compact structure, small occupied space, low manufacturing cost and strong practicability.

Description

technical field [0001] The invention relates to a vertical boiler, in particular to a vertical four-time reverse-burning boiler. Background technique [0002] The traditional boiler adopts the vertical direct-fired type to directly burn coal and exchange heat with flue gas, which has low heat utilization rate, large energy consumption and high use cost. In order to save energy and improve thermal efficiency, existing vertical boilers improve the heat conversion of flue gas, add water pipes or water tanks to the side walls of the boiler or flue gas pipes, and increase the heat exchange area between flue gas and water pipes or water tanks, thereby improving heat utilization rate. [0003] The patent application number is 02200342.8, which discloses a small reverse-burning tertiary air heating boiler. The boiler is a box-shaped structure, which is composed of a reverse-burning furnace, a combustion chamber, a second combustion chamber and a flue. The flue gas flows through the...

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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, such as complex structure, large space occupation, high production cost, and low heat conversion efficiency, the object of the present invention is to provide a boiler with simple and compact structure, reasonable design, low production cost, and high heat conversion efficiency. Tall vertical four-time backfired boiler

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