DE258386C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 258386 CLASS 13 //. GROUP

Patented in the German Empire on December 5, 1911.

The invention relates to a heating tube superheater, which consists of parallel rows of each consists of several superheater elements. '

With this type of tube superheater it is due to the large number of out of the Heating tubes protruding pipe ends difficult to arrange them so that they are comfortable and can be clearly attached to the steam boxes, and that the attachment points are easily accessible even after installation. This invention offers a way of solving this problem.

The invention consists in the fact that in each row of elements the hot steaming after geineinsamem Steam box and the wet steam ends after a second common steam box on the opposite side are bent in such a way that of each row of elements, both the mouths of the Naßdampfenden and those of the Superheated steam ends in a row next to each other on the steam boxes.

Several embodiments of the invention are shown in the drawing.
Fig. Ι shows a front view of an embodiment partially in section,

Fig. 2 is a section along section 2-2 of Fig. Ι seen from above.

3 and 4 show similar representations of a second embodiment.

Fig. 5 shows an end view of a third embodiment partially in section and

Fig. 6 is a section along 6-6 of Fig. 5 seen from above.

In the embodiment shown in Fig. I and 2, a superheater element b is accommodated in each heating tube α , the axis consists of four pipe strings forming a snake. On one side of the heating pipes there is a wet steam distribution box c, on the opposite side a hot steam collecting box d. The pipe end at the bottom of each superheater element is bent after the wet steam distribution box c, the pipe end at the top after the superheated steam collecting box d. The opening points of the superheated steam or wet steam ends belonging to a row of elements lie next to one another in a row on the corresponding steam box. Every two pipe ends lying vertically one below the other are connected to the corresponding steam box by a screw i and a bracket β.

Up to now it has been customary to place all hot and wet steam ends of a row of elements after the same Side or the pipe ends of one half of the row of elements to one side and those of the other half to the opposite side. With this arrangement come the rows of mouths the pipe ends are very close to each other, and special precautions are required in order to be able to attach the pipe ends to the steam boxes, in particular at

small heating pipe diameters. This invention reduces the number of rows of pipe ends lying one below the other on each steam box by half. 5. The distance between the rows of pipe ends lying one below the other is thereby considerably increased in a simple manner. The attachment of the mounting bracket e therefore presents no difficulties. The screws belonging to the bracket e are accessible and can be easily tightened. The invention also offers the advantage that only one steam box of simple prismatic shape is required on each side of the heating pipes.

In the embodiment shown in Fig. 3 and 4, the superheater elements consist of only one U-shaped turn. Here, too, one end of each superheater element is bent to one side and the other to the opposite side of the superheater system. In the first and third row of elements shown in the drawing, the upper pipe ends of the superheater elements are bent after the Naßdampfverteilkasten c and the lower pipe ends after the superheated steam collection box d , in the second and fourth row the other way round, the lower pipe ends after the Naßdampfsverteilkasten c and the upper pipe ends after the superheated steam collecting box d. This arrangement results in differently large distances between the rows of pipe ends. The mounting brackets e are arranged between the rows of pipe ends that are further apart. The distance between the pipe ends fastened by a common bracket is, as can be easily seen, relatively larger in this embodiment than in the first described.

In the third embodiment (FIGS. 5 and 6), each superheater element b has two turns which are accommodated in two adjacent heating tubes of two different rows of heating tubes.

The bending of the pipe ends is done in the same way as with the first described Embodiments.

Claims (2)

Patent Claims: 1. Heating tube superheater, which consists of parallel rows of several superheater elements consists, characterized in that in each row of elements all hot steam ends after a common Steam box and all wet steam ends after a second, on the opposite one Side lying common steam box are bent in such a way that of each row of elements both the mouth points of the superheated steamers as well as those of the wet steamers on the steam boxes in a row next to one another lie. 2. Heating tube superheater according to claim 1, characterized in that alternately in a row of elements, the upper pipe ends after the wet steam distribution box and the lower pipe ends after the Superheated steam collecting box, in the next row of elements, however, the lower pipe ends after the wet steam distribution box and the upper pipe ends after the superheated steam collection box are turned. For this purpose ι sheet of drawings.