SU2429A1 - Sectional steam boiler of two-chamber type with coil manifolds - Google Patents

Description

The present invention relates to water tube boilers in which sectional collectors have a serpentine shape and are interconnected by inclined rows of tubes arranged in a checkerboard pattern.

According to the invention, sectional collectors at one end of a row of tubes are moved towards the sectional collectors of the other end, so that adjacent sectional collectors can be interconnected by means of water pipes, for example, in an installation where there are two located a steam collector and water drums, one of the vertical rows of the sections through the tubes communicate with the section collector of one drum, while the remaining tubes of this series communicate with the section collector connected to another drum, as a result of which, in both reels connected in such a way, the generality of the water level is ensured.

Such a device is of particular importance for high-pressure boilers with a low water content (pressure from 40 to 100 atmospheres).

In particular, as applied to high pressure boilers, a conventional upper steam-collecting and water drum can be replaced by an upper tube system consisting of sectional collectors connected by tubes, slightly inclined and arranged as above, with said sectional collectors connected to the corresponding section collectors of the generator system.

The tubes of the lower horizontal row are made of the same diameter, the same as the tubes of the generator system, and they are equipped with dampers that cut off the upper system from the path of the gases, while the other tubes of the upper system are made of a larger diameter, but with narrow ends, in the form of bottle neck. enters section collectors.

The invention is illustrated in the accompanying drawings, in which: FIG. 1 is a side view of a portion of a water tube boiler; FIG. 2 is a sectional view of FIG. 1 on line AB; FIG. 3 shows a section along the line CD of FIG. 2; FIG. 4 is a partial view, on an enlarged scale of FIG. 1, when viewed in the direction of the arrow E; FIG. 5 is a longitudinal section of a modified construction of a water tube boiler; and FIG. 6 - a part back view, a part a section of fig. five.

The boiler shown in figures 1-4 consists of two upper steam-combining and water drums 3j 4 connected at the ends of inclined pipes with serpentine collectors.

As can be seen from the drawings (Fig. 3), water per tube / goes from sectional collector 5 to the opposite, relatively half-step, sectional collector 6 at point 1a, which, in turn, is connected, by section 2a - 2, to sectional collector 7. The other section collectors are interconnected in exactly the same way.

In the modified design of the boiler shown in Figures 5 and 6, the upper longitudinal drums are replaced by an upper tube system consisting of sectional collectors 13 and 14, interconnected by slightly inclined tubes 75, in the same manner as indicated with respect to FIG. 1-4.

As can be seen, the tubes 76 of the lower horizontal row are of the same diameter as the generator tubes 77 and serve to maintain

brick bulkhead 18, cutting off the upper tubes 75 from the path of contact with hot gases, so there is no danger in the upper tubes of depositing large amounts of scale, which is why it is possible to use narrower diameters with narrow ends, in the form of bottlenecks; this increases the volume occupied by water and steam, and due to the narrowing of the diameter of the tubes at the point of their connection, the latter resist high pressure better.

SUBJECT OF THE PATENT.

1.Sectional steam chamber of two-dimensional type with coil collectors, characterized by its assembly, in which the front ends of the tubes coming out of each rear collector are rolled, in order to unite the water spaces of all the collectors, in the nests of each two adjacent front collectors displaced by half a step .

2. The change described in G1. 1 boiler, characterized by its use, instead of a conventional steam collector, a number of sections assembled according to the method indicated in paragraph 1, supplied with a slight slope, fitted in the first lower row with pipes of a usual diameter, with brick partition on them, and consisting of the rest of the pipes are of larger diameter with mouth-pans thinned at the ends, which increase in diameter is intended to increase the water and steam content of the boiler.

Tipo-autograph "Red Pechatnik, Leningrad, International, 75.

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