The main furnace of the biomass evaporator

Abstract

The invention provides a main boiler of a biomass evaporator, and belongs to the technical field of machines. By adoption of the main boiler of the biomass evaporator, the problem that the steam of anexisting boiler is large in water content is solved. The main boiler of the biomass evaporator comprises an upper support provided with a gas collection cavity and a lower support provided with a water collection cavity. An exhaust port is formed in one side of the upper support. A water inlet is formed in one side of the lower support. A plurality of heat conduction pipes are vertically fixed between the upper support and the lower support. The two ends of each heat conduction pipe separately penetrate through the gas collection cavity and the water collection cavity to communicate with theoutside. Finned tubes are arranged outside the heat conduction pipes in a sleeving mode and are fixed to the heat conduction pipes. Annular gaps are formed between the finned tubes and the heat conduction pipes. The two ends of each annular gap separately communicate with the gas collection cavity and the water collection cavity. Waterstop rings are also arranged outside the heat conduction pipesin a sleeving mode and are fixed to the heat conduction pipes. The waterstop rings are located above the annular gaps and in the gas collection cavity and right face the annular gaps. A drain outlet is further formed in the upper support. The waterstop rings are higher than the drain outlet in position and are lower than the exhaust port in position. The main boiler has the advantage that the water content of steam is low.

Description

technical field [0001] The invention belongs to the field of energy saving and environmental protection, and relates to a biomass evaporator, in particular to a main furnace of the biomass evaporator. Background technique [0002] The main furnace of the existing biomass evaporator, such as a casing boiler disclosed in the Chinese patent library [application number: 2006100168949] includes a water pump, a combustion chamber, a water chamber, a furnace base, a smoke outlet, a water inlet, hot water or steam At the outlet, a heat exchange chamber is arranged above the combustion chamber and the water chamber, and a hot flue gas collection chamber and a hot water vapor chamber are arranged above the heat exchange chamber; vertical and longitudinal casings are arranged uniformly in the heat exchange chamber. It is composed of an inner tube and an outer tube. The outer tube is covered with an outer tube. There is a gap between the outer wall of the inner tube and the inner wall o...

AI Technical Summary

Problems solved by technology

However, there is still a problem with this boiler: the steam discharged from the upper end of the gap will contain some water. Since the boiler is not equipped with a corresponding water retaining structure, the water content of the finally discharged steam is relatively large.

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