SU1078211A1 - Heating boiler - Google Patents

Abstract

HEATING BOILER, containing a lined casing with a firebox placed in it, framed with packages of heat exchange sections, which form channels for the ff- - ... jty.::a:...p vVX / XXV XX V W Fg / g with the lining of the casing. 1 (L of gas connected to an exhaust duct made in the lining and arranged longitudinally into section packages, characterized in that, in order to increase economic efficiency by lowering the temperature of the flue gases, the exhaust duct is located above the sections provided with lining from the side of the channels openings in the lower part, above which in the channels are additionally installed partitions separating them into consecutively connected upper and lower parts connected respectively to the flue gas duct and through holes in the brickwork - to the firebox. LSG: "..," ..

Description

The invention relates to a power system and can be used in sectional heating boilers.

Heating boilers are known that contain a combustion chamber placed in a housing and packages of heat exchange sections with channels for the passage of flue gases).

A disadvantage of the known boilers is the considerable dust content of the flue gas sections, which complicates their operation and reduces productivity.

Closest to the proposed invention is a heating boiler comprising a lined body with a furnace placed therein, framed by heat exchange sections, which form channels for gas passage with the lining of the body and are connected to the exhaust duct made in the lining 2.

A disadvantage of the known boiler is the high temperature of the flue gases due to the insignificant path of gas passing along the heat exchange surface, which reduces the efficiency of the boiler operation.

The aim of the invention is to increase efficiency by reducing the temperature of the flue gases.

This goal is achieved by the fact that in a heating boiler containing a lined housing with a furnace placed therein, framed by heat exchanger sections, which, with the case lining, form channels for gas passage, connected to a diverting gas duct, which is located in the lining section and the flue duct is located above the sections provided on the channel side with lining with holes in the lower part, above which in the channels there are additionally installed partitions dividing them into consecutively interconnected upper and lower sections, connected respectively to the diverting gas duct and through the holes in the brickwork - to the firebox.

FIG. I shows the boiler, a general view; lengthwise cut; in fig. 2 shows section A-A in FIG. one; in fig. 3 - section bb in fig. ; in fig. 4 shows a section B-B in FIG. 2; in fig. 5 is a section of YYD in FIG. 2

The heating boiler contains a lined body 1 with a furnace 2 framed therein, framed by packages of heat exchange sections 3. The sections 3 are formed with the lining of the body 1 channels 4 for the passage of gas. Above sections 3, a discharge duct 5, b) / filled in a case lining is longitudinally located. On the side of the channels 4, sections 3 are provided with a lining 6 with openings 7 in its lower part.

Above the holes 7 in the channels 4, partitions 8 are installed, dividing the channels on the upper and lower sections connected in series to each other, connected respectively to the exhaust duct 5 and through the openings 7 in the brickwork 6 to the furnace 2. The exhaust duct 5 is equipped with a gate at the outlet 9 and communicated with the boar 10.

To the cavity of the furnace 2 is connected to the starting flue 11, equipped with a valve 12

and communicated with the boar 10. The furnace 2 is equipped with a water-cooled grate 13, which is connected through water to the boiler circuit. The boiler has cleaning doors 14.

The boiler works as follows.

Before starting the kindling, the gate 9 and the flap 12 open. A stream of hot gases formed in the furnace 2 flushes the internal surfaces of the sections 3 and through the holes 7 enters the lower portion of the channel 4, from where it goes to the gas duct

11 and through the hog 10 is retracted outside the boiler. After the kindling of the fine 12, they block the flue P. During the operation of the boiler, hot gases, the outlet from the furnace 2 through the openings 7 to the lower section of the channel 4, are then directed around the packages of sections

3 from their outer side and, having reached the rear wall of the housing 1, rise to the upper portion of the channel 4, where they move in the opposite direction. From the upper section of the channel 4, the gases enter the exhaust gas duct 5

and through the hog 10 is diverted to the outside of the boiler.

The separation of the gas passage channels to the upper and lower sections with the latter connected to the furnace allows an increase in the gas path along the heating surfaces, which reduces heat loss with the emission of gases and increases the efficiency of the boiler operation.

J

five

eight

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FIG. 2

Bb

(p1 / g.

Claims (1)

A HEATING BOILER comprising a lined housing with a firebox housed therein, framed by packages of heat-exchange sections, forming channels for gas passage with the housing lining, connected to a discharge duct made in the lining and arranged longitudinally in section packages, characterized in that, in order to increase efficiency by to reduce the temperature of the flue gases, the flue gas duct is located above the sections provided with lining on the side of the channels with holes in the lower part, above which in the channels there is an additional? but partitions were installed dividing them into successively connected upper and lower sections, connected respectively to the outlet gas duct and through the openings in the lining of the furnace. J A δ U_ UFig. 1 A B