SU78826A1 - Horizontal mobile boiler type - Google Patents

Description

This invention relates to horizontal mobile boilers of a mobile type with fire tubes, a steam superheater and a fine shaft for firewood, wood chips and lump peat.

In the proposed boiler, in order to reduce thermal notions to the external environment, the boiler drum is located in the heating space above the horizontal grate of the shaft furnace between two loading boxes, and the feed tank and the air-blowing chamber are located on the sides of the furnace.

FIG. 1 shows a longitudinal section of a steam boiler; in fig. 2 - a section on / - / and // - //.

The drum 1 of the boiler is located in the furnace space 2 above the horizontal grill 3 of the shafts of the firebox 5, between two loading boxes 4, and the nutritional tank 6 and the air-blowing chamber 7 are arranged on the sides of the fire chamber 5.

The lower part of the drum 1 is heated to the burning center. This surface is subject to intense heat exposure due to both radiation (radiation) and convection (contact with washing with strongly heated gases). Further heat transfer

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along the gas flow occurs in the flue tubes 8, located in the water volume of the drum /.

The burning center, located inside the furnace space 2, is isolated from the environment by a layer of freshly loaded fuel, as well as by a feed water tank 6 and an air-blowing chamber 7, from which air is supplied to the furnace.

A steam superheater 9 is placed inside the flue tubes 8. The flow of hot gases inside the flue tubes over an annular cross section causes an increase in their speed, and consequently, the intensification of heat transfer from gases to water and steam.

Combustion of raw wood, wood chips and lump, peat occurs in furnace 5 with an inclined burning mirror and with a small mine for drying.

In a thin layer of fuel on a horizontal reneptke 3, combustion occurs, and the overlying fuel under the action of its own weight continuously slides down. Through loading boxes 4, new portions of fuel are put into operation during the operation of the COT.PA.

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No. 78826-

The power supply of the drum / water comes from the feed tank 6 using a manual pump 11 through a pipe 10.

Hot gases from the furnace space 2 from the borehole pipes 8 enter the smoke box 12 and then into the chimney 13.

Subject invention

Horizontal boiler of mobile type with smoke

pipes, a superheater and a shaft furnace for Firewood, wood chips and lump peat, characterized in that the boiler drum is located in the furnace space above the horizontal grid of the shaft furnace between two loading boxes, and the feed tank and air-blasting campha are placed on the sides of the furnace with reducing heat loss to the environment.

No. 78826