SU1245814A1 - Water=heating boiler - Google Patents

Description

The invention relates to a power system and can be used in boilers operating in heating and hot water supply systems.

The aim of the invention is to improve the efficiency of the use of flue gas heat in a hot water boiler.

FIG. 1 shows a hot water boiler, cross section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows an arrow B of FIG. 2

The boiler contains an encased casing 1 equipped with fin, ceiling and end shields 2 and 3, lateral fin inner and peripheral panels 4 and 5, respectively. The end shield 3 through the intermediate collector 6 to the upper and lower manifolds 7 and 8. The tubes of panels 4 and 5 are arranged offset from each other (in a checkerboard pattern) and connected to the upper and lower manifolds 9 and 10. Screens 2 and 3, and panels 4 surround the central gas duct 11, and between parallel-mounted panels 4 and 5, a peripheral gas duct 12 is formed, connected to the gas duct 11 by means of openings 13 formed by gaps between the non-endless upper sections of the pipes of the panels 4. The lower collectors 10 adjoin adjacent fired with them the lower headers 8 and are connected to the drain 14 and truba.m conductive supply nozzles 15 and 16 are provided with hatches purification. In the pipes of the peripheral panels 5, smoke tubes 17 are installed, through which the peripheral gas duct 12 communicates with the exhaust duct 18 mounted on the upper collections

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torus E, made of steel sheet and covered on the outside with insulation. The upper collectors 9 are installed next to the collector 7 and connected via screen 2 to a collection collector 19 communicated with collectors 7 and 9 through nozzle 20. Ceiling screen 2 is equipped with safety explosive valves 21. The boiler is installed on foundation 22, equipped with burners 23 and an burner grill 24. Upper collectors 7 and 9 are made in the form of half-shells with closing flat walls forming tube plates for screen pipes 3 and panels 4 and 5.

Water-boiler is as follows.

When fuel is burned in 1 eagle 23, the formed flue 1 basics enter the central gas duct 11, rise upwards to the ceiling screen 2 and through the openings 13 enter the peripheral gas duct 12, where, downward, the pipes of the panels 4 and 5. Then the flue gases pass through the flue tubes 17 and the flue gas duct 18, from where they are removed from the boiler. The water, flowing Jun. 1, and through the pipes of shields 2 and 3 and 1, aneli 4 and 5, takes the heat of smoke I and heats it up. Feed water to the boiler; they feed through the pipes 15 into the lower collectors 8 and 10, which are interconnected among themselves, of which pipe nanels 4 and 5 are pipes and through the upper collectors 7 and 9, pipes 20 and the ceiling screen 2 enters the assembled collector 19. ZibiMOBbie gases in the process of washing the panels 4 and 5 and screens 2 and 3 move along a complex trajectory, which contributes to a more efficient use of their heat.

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VNIIPI USSR State Committee of Inventions and Discoveries

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Claims (1)

A WATER BOILER containing gas-tight fin inner and peripheral panels of pipes placed in a walled housing, arranged in parallel with the formation of a central and peripheral gas ducts in series with each other and with a gas outlet channel, the pipes of the inner panels being offset from the pipes of the peripheral panels, characterized in order to increase the efficiency of the use of flue gas heat, smoke tubes are additionally installed in the pipes of the peripheral panels loss by which the peripheral gas duct is connected with the exhaust channel. SU „„ 1245814 Figure 1