SU39374A1 - Water tube boiler for central heating systems - Google Patents

Description

For the maintenance of central water or steam heating systems, water-tube boilers are used that are equipped with an internal firebox and a vaulted external lining. The proposed boiler is made of unrelated pipes, connected to the ends of the feedwater collection pipes located in the lower part of the boiler, and the arcuate portions, by means of connecting pipes, to the collector installed above the boiler. For the purpose of better circulation, tubes are interconnected under the furnace in the lower part of the boiler, connecting the combined feed pipes to each other. To enable the boiler to operate on different types of fuel, the volume of the flue space can be varied using the adjustable height grate and the adjustable threshold along the boiler axis.

In FIG. 1 shows a longitudinal section of the boiler along the CD in FIG. 2; FIG. 2 is a view from the front and a section along AB in FIG. one; FIG. 3 is a section through EF in FIG. 1 and FIG. 4 is a top view of part of the boiler.

The water tube boiler consists of the simplest in the form of arching of arcuate vertical pipes (/), welded at the base to two horizontal assembled pipes (2.2), which is the power supply base of the boiler. Collector 3 pair or

(U

hot water is the upper horizontal pipe plugged at the ends, connected to the pipes 7, by means of nozzles 4.4, equipped with flanges 5.5. The horizontal collecting pipes 2, 2 are connected to the bottom of the boiler, under the furnace, with additional pipes b, b, which serve to improve circulation. The upper arc of the pipes (, /) is directly bathed in by gases from the furnace 7, and the sides of the pipes (7), as well as horizontal pipes 2, 2, are placed in the space between the furnace walls 8, 8 W. by external lining 9, 9. The shape of the pipes, as well as the method of their fixation, make it possible to widely use a variegated material by welding sections of uniformly lengthened pipes, a semi-scrap from rolling, as well as the use of outdated locomotive pipes and any other type of boiler.

The arc parts (tops) of the pipes 7, / and their connecting pipes 4, / are washed with hot gas in the underwater space, and the side parts are with a falling gas flow between the walls 8 and the lining.

The arched part of the outer brickwork 9, 9 n its sides reflect the radiant heat towards the pipes, at the same time being the closest heat accumulators. The location of the pipes /, 7 in the heating space and their shape, together with the pipes 2, 2 and pipes 6, b, ensures proper circulation. Temperature changes in the length of the pipes 7, /, which are at the same time ensured by their considerable length and shape of the arcs, cause displacement and rebounding of the scale, thereby preventing its layering. To make it possible to use different types and grades of fuel, the grate / (can be rearranged according to its height, and the threshold is set in different parts of the furnace to change its volume.

The subject matter of the invention.

Claims (3)

1. Water tube boiler for heating systems with internal heating and a vaulted outer lining. characterized in that the elements of the boiler are made in the form of arcuate pipes I, I connected to one another at their ends by welding to feed pipes 2, 2 in the lower part of the boiler and connected, each with a collector 3 installed above the boiler connecting pipes 4, 4. 2. In the boiler according to claim 1, the use of V-shaped circulation tubes b, b, bonding 1, their combined pipes 2, 2 in the bottom of the boiler. 3. In the boiler according to claim 1, use in the internal firebox of the adjustable block, along the height of the grate 10 and of the threshold set along the axis of the boiler / 7 for the purpose of changing the volume of the heating space depending on the type of fuel used.