SU68979A1 - Booster - Google Patents

Description

V. A. Rumntsev and A. A. Ushakov Kip tilnik

Filed April 5, 1946 to the USSR Ministry of Trade No. 1075 (344493) Published on July 31, 1947

Most of the known designs of continuous boilers do not satisfy all consumer requirements for a number of reasons. The main disadvantages of the known designs of boilers are: high metal consumption; high manufacturing cost and failure after a short period of exploitation for reasons of leakage in places difficult to repair (due to complex multi-seam construction and intensive formation of scum in places limiting the boiling rate, for example, in the cross-pipe assembly, etc.).

The present invention relates to continuous boilers with a corrugated flame tube.

A distinctive feature of the proposed boiler is that in order to increase the height of the relative heating surface per unit weight of the flowing water, both the flame tube and the fluid cover surrounding it are made tapering upwards, and the corrugations

the flame tube has a constantly increasing depth.

FIG. Figure 1 shows a vertical section of the boiler; FIG. 2 is a separate screen-heater; FIG. 3 is a plan of FIG. 2, in FIG. 4 - separately the chamber for disassembling a boil with a boiling pipe located in it; FIG. 5 is a plan of FIG. 4 and in FIG. b - section along the line VI-VI of FIG. 4, in comparison with FIG. 4 scale.

The raw water flows from the water-filled receiver tank 7 with a float valve of conventional design and through the connecting pipe 2 is introduced from below into the inter-conical space J of the heated tank formed by the inner cone of the fire tube 4 and the outer conical casing 5 of the divider cross-pipe, where it is brought to boil.

In case of adaptation of the boiler for operation on solid fuel (wood, coal, peat, etc.), the water entering the inter-conical space 3 is preheated in the screen-heater 6,

No. 68979 located in the furnace space 7. The screen design of the preheater section could be made in the form of a row of cS tubes included in two collectors — input 9 and output 70, connected to space 3.

The heated mass of water gradually moves to the top of the conic space J, where it is brought to a boiling state and is poured (pulsated) through the transfer side / 7 of the outer cone 5 boiling to the collapsible tank 72. The area of the horizontal section of the cone space 3 is due to conicity, as well as deep corrugations 13 present on the surface of the flame tube 4 (Figs. 5 and 6), is greatly reduced to the vertex and can reach up to 76 times the ratio, and the surface of the flame tube is heated from the bottom to the vertex. very slightly due to the wedge-shaped corrugations, the depth of which increases to verschine forming a shape with a significant perimeter. The length of the circumference forming the base of the inner cone to the perimeter of the figure to the cone vertex (at bead level 77) can be expressed as 1.5. Thus, it is possible to obtain a noj power increase in the relative heating surface per unit weight of flowed water to more than ten times the ratio (16: 1.5 10.6).

As can be seen from the drawing, in the direct boiling unit (section through VI-VI) the structure acquires all the advantages of a water-tube heat exchanger without its main drawbacks: complexity, scale formation, etc.

Subject invention

A continuous operation with a corrugated flame tube, characterized in that, in order to increase the height of the relative heating surface per unit weight of the flowing water, both the flame tube and the enclosing fluid cover are made upwards and the corrugations of the flame tube have a gradually increasing depth.

FIG. one

FIG. 2

FIG. 3