SU17255A1 - Device for connecting the upper drums of multibeam vertical water tube boilers - Google Patents

Description

In paragraph {) the proposed device, in order to prevent the formation of scale in the tubes connecting the water spaces of the upper drums of multi-plume vertical steamer tube boilers, a chamotte partition is used that protects against the heating of a number of all the above-mentioned tubes from gases fitted with nozzles to connect their ends to the drum’s steam spaces. .

In the drawing, FIG. 1 shows a vertical vertical section of the upper boiler bdraban with connecting pipes; FIG. 2 is the same with modified connecting tubes and FIG. 3 is a section along the i line AB in FIG. 2

From the practice of exploitation of multi-bump vertical water-pipe-flue in cases of feeding them with dirty water, it turned out that in pipes 9, 11 (Fig. 1), (connected upper drums and located under chamotte partition blocking the gas duct, due to insignificant speed transfusing from a 2 in 1 drum, a large amount of scale and dirt was obtained.

In order to eliminate this drawback, the ends 8, 8 of the bottom of f. pipes 9 when

through nozzles 6, 6, connected to the vapor spaces of the drums 1 and 2 ,. so that pipe 9 does not circulate water, but steam. For protection against heating with gases; the upper rows of the culvert pipes 11: chamotte recess / 10 is placed on the lower row of pipes 9. Thus, the pipes 9 cooled by steam are the cold ceiling of the flue and at the same time serve to dry the steam when it passes from; front to rear drum,. helping the superheater, 19 and reducing its pollution.

Steam from the rear boiler BS1 goes through pipes 15 to the steam chamber 16, from which pipe 17 to the superheater 18, 19, 20 and then through the valve (or 21, the triple valve 23 and the valve 24 to the pipeline 25). the addition of a saturated pard; in order to lower the superheat temperature somewhat, if it turns out to be too high.

In the coupling device, the steam:: spaces of both upper drums; shown in FIG. 2 and 3, separate nozzles 6 and 6, which interfere with the development. inspections of drums, replaced by general

collecting collectors 5, laid in the water spaces of the drums and connected to the steam space of the drums near the bottoms of the last knees 5 and nozzles 4 (Fig. 3). The pipes 9 are rolled at the same time into the walls of the drums and collectors, and for the possibility of said rolling, inspection and cleaning, there are hatches 26 against each end of the pipes 9 in the wall of the collectors 5.

The subject of the patent.

1. A device for connecting the upper drums of multi-plume vertical water-tube boilers, characterized in that the rows of pipes 11 (Fig. 1) connecting the water spaces of the drums are supplied to protect them from heating by gases, chamotte partition 10, le, living on the lower row of pipes 9, which are pipes for connecting their ends with steam spaces. The drum is provided with nozzles 6 and 6.

2. Modification of the device described in Section 1, characterized by the replacement of nozzles 6 and 6 connecting each of the pipes 11 with steam spaces, common prefabricated collectors 5 (Fig. 2), embedded in water spaces

Drums which clutches are connected to the steam space of the drums near the bottoms of the latter by elbows 5 and the branch pipes 4 (Fig. 3).

figl.