SU958770A1 - Steam generator fire box - Google Patents

Description

This invention relates to a TBciM device for burning fuel and can be used on thermal electric hoses.

Known furnaces steam generators, containing formed coaxially placed cylinders koltevuyu combustion chamber with a cold funnel and installed in its upper part of the burners Cl3.

The disadvantage of these burners is the complexity of manufacturing, repair and operation and low efficiency in fuel mileage.

It is also known progenerating furnace. pa, the vertical annular formed coaxially placed with equilateral prisms, the combustion chamber with the cold funnel and the coils of the slit-like burners mounted on the outer wall of the chamber, the axes of the upper Rus burners directed tangentially to the conditional circle 23.

A disadvantage of the known device is lowered efficiency due to underburning and low heat exchange.

The purpose of the invention is to increase efficiency by reducing underburning and intensifying heat transfer.

This is achieved by the fact that the furnace of the steam generator is equipped with water-cooled tubular panels installed radially under the burners of the lower rusa adjoining the chamber edges, the axes of the burners of the lower rusa are directed

10 to the vertical axis of the chamber with a downward slope at an angle of 30-45 °, and in the lower part of the cold funnel there are additionally installed a secondary blowing nozzle directed along its outer slopes.

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In addition, the distance between the upper spurs of the lower rus torch generators and the lower rus tor generatrix of the neighboring rusa can be 3-5 times greater than the width of the lower rusch torches.

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FIG. 1 shows a steam generator furnace; a longitudinal section; in fig. 2 is shown in FIG. one.

The steam generator furnace contains a vertical annular combustion chamber 3 formed with coaxially spaced equal prisms 1 and 2 with a cold funnel 4 and mounted on the outer wall 1 of chamber 3 with fuzz burners 5 and 6. Axes of the burners

30 S of the upper Rus are directed tangentially to the conventional circle, and the axis of the burners 6 of the lower Rus are directed to the vertical axis of the chamber 3 with a downward slope at an angle of 30-45. Under the bottom 6 burners 6, there are water-cooled tubular panels 7 radially mounted adjacent to the faces of chamber 3. In the lower part of the cold funnel 4, there are additionally installed directional portions of its outer slopes of the nozzle 8 of the secondary blowing. The distance between the upper generator of the burners of the lower Rus and the lower generator of the burners 5 of the neighboring Rus is 3-5 times longer than the width of the burners 5 of the lower Rus. The burners 5 and b are connected to the dust separation device 9, and the nozzles 8 to the secondary air duct 10. The steam generator furnace works as follows. The fine fraction of the fuel dust from the device 9 enters the combustion chamber 3 through the tangential burners 5 of the upper Rus, forming a vortex torch in which the dust burns. The coarse fraction of the fuel dust from the device 9 enters through the burners of the lower Rus to the bottom of the chamber 3, interacting with the air coming in through the nozzles 8 vertical vortices in which the coarse particles are circulated prior to their combustion. Due to the tubular panel 7, forming in its lower part of the chamber its wounds 3 insulated volumes, as well as the inclination of the burners b at an angle of 3045 whirlwinds are formed, which also increases the efficiency by reducing underburning. In addition, due to the intensive movement of gas vortices in the lower part of the combustion chamber 3., Heat exchange is intensified, which makes it possible to reduce the height of the furnace. As studies have shown, the stable operation of the vertical vortex flows in the lower part of chamber 3 and the horizontal vortex flow in the upper part of chamber 3 is facilitated by the upper burning 6 of the lower russa at a distance from the lower forming burner 5 of the neighboring rus. 3-5 times greater than the width of the burner b lower rus, which also leads to increased efficiency. Formula of the Invention 1. A steam generator fire chamber containing a vertical annular combustion chamber formed by coaxially arranged equilateral prisms with a cold funnel and coppers of generous burners mounted on the outer wall of the chamber, with the axes of the burners of the Rus directed towards the circumference, which differs from efficiency of ways to reduce underburning and intensification, heat exchange, it is equipped with water-cooled tubular panels installed radially under the burners of the lower Russian and with primy- Towards the front of the chamber, the axis of the lower russ burners is directed to the vertical. The camera's axis is inclined downward at an angle of 30-45, and in the lower part of the cold thief there are additionally installed secondary blow nozzles along its outer slopes. 2. The furnace according to claim 1, that is, that the distance between the upper generator of the lower rus torch and the lower generator of the adjacent rus torch is 3-5 times the width of the lower rus torch. Sources of information taken into account during the examination 1. USSR author's certificate No. 111464, cl. F 22 On 29/06, 1956. 2. The USSR author's certificate 658358, cl. F 22 V 31/00, 1979.

Claims (2)

Claim 1. A steam generator furnace containing a vertical annular combustion chamber formed by coaxially placed equilateral prisms with a cold funnel and tiers of slit-shaped burners mounted on the outer wall of the chamber, the burners of the upper tiers being directed tangentially to a conditional circle, characterized in that, in order to increase efficiency by To reduce the short-lived and intensifications of heat transfer, it is equipped with water-cooled tubular panels mounted radially under the burners of the lower tier with the prim. By touching the faces of the chamber, the axes of the burners of the lower tier are directed toward the vertical-> axis of the chamber with an inclination downward at an angle of 30-45 °, and in the lower part of the cold funnel, secondary blast nozzles directed along its outer slopes are additionally installed. '2. Firebox in π. 1, on the basis of the fact that the distance between the upper generators of the burners of the lower tier and the lower generators of the burners of the next tier is 3-5 times the width of the burners of the lower tier.