SU78656A1 - Vertical steam boiler low power - Google Patents

Description

The object of the present invention is a low-capacity vertical steam boiler C with transverse boiling and vertical smoke tubes.

According to the invention, to obtain superheated steam without the use of a separate superheater, the boiler is equipped with a system of transverse firewalls located in the region of the ends of the smoke pipes that are not cooled by water. To facilitate the removal of sludge from the boiler, as well as to simplify the production of welding, the outer and inner drums are connected to the bottom of the boiler using a trough-shaped ring.

FIG. 1 shows a general view of the proposed boiler in two vertical sections. FIG. 2 shows the upper part of the boiler with inclined transverse partitions. FIG. 3-trough-shaped RING cross section.

The proposed steam boiler (Fig. 1) consists of a vertical cylindrical part located above the bed 6 with grate 8.

The cylindrical part of the boiler, {FIG. 1) composed of outdoor

drum 1 and inner drum 2. In the lower part, the drums are interconnected by means of a trough-shaped stamped connecting ring 5, which is welded to them circumferentially.

The connecting ring 5 along the outer edge is provided with a sharpening that replaces the spacer ring for welding (Fig. 3). Sharpening is also used to center the outer drum 1 when it is installed. The connection with the ring facilitates the removal of the cuttings from the boiler, and also simplifies the production of welding works. II improves their quality.

In the inner drum 2 there is a bundle of transverse boiling tubes 3. From above, the drum 2 is covered with a spherical bottom.

In the upper cylindrical part of the boiler there is a vertically located beam of smoke tubes 4. Since the latter in their upper part pass through the steam space of the boiler, they also serve as a superheater. For this purpose, the upper part of the smoke tube bundle along the periphery is closed by a cover 7, lowered below the water level in the drum (. 1 and 2)

To increase the flow rate of the steam flow, which moves 299 s across the flue pipe system, as well as to improve steam drying and the cooling rate of the pipes, transverse directions are placed in the casing, the walls 9 are not relative to the water level in the boiler. . Steam enters the casing through the holes 10, passes between the baffles 9 and exits through the pipe / /, on which there is a vapor shut-off valve outside the boiler. The work of the boiler is as follows. The flue gases at the outlet and the firebox 6 enter the firing space, where they wash the bundle of heating pipes 3. Then they pass into the bundle of flue pipes 4, and through the smoke box 12 are sent to the chimney 13. At the same time, in the boiler, steam enters the casing 7, where it is subjected to drying and overheating when it comes into contact with the protrusions above the water level of the smoke pipes 4. Then it goes through: the spigot // is removed to its intended purpose. The subject matter of the invention 1. Vertical steam boiler with a small capacity, with bundles of transverse boilers and vertical fire tubes, which, with the help of more convenient removal of sludge from the cavity between the inner and outer drums, drums they are welded to a trough-shaped ring connecting them, the outer wall of which is provided with a sharpening designed to center the outer drum when it is installed on the ring. 2. A boiler according to claim I, characterized in that inclined partitions are installed across the flue tubes located in the steam space, serving to increase the rate of steam flow moving across said tubes enclosed in a casing.

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