SU1467309A1 - Vertical condenser - Google Patents

Abstract

Invention m. used as feedwater heater in steam turbine plants. The purpose of the invention is to reduce the metal capacity and improve the manufacturability of the manufacture of a capacitor. In the housing 1 there are concentric multi-pass spiral coils 2 with different diameters of the winding of heat-exchange pipes 3 and a screw condensate collector located between the turns of the coils. One of the pipes 3 of each coil is made in the form of a gutter, which serves as a condensate collector. The device provides efficient organization of condensate drainage, which increases heat transfer from the condensing steam, as well as reducing the proportion of welded joints. 3 l. to. ffn fflVfQffft Mkf to 1 sp with

Description

Fm.1

one

I The invention relates to heat exchangers, namely, condensers, and can be used, for example, as a feedwater preheater for steam turbine plants.

The purpose of the invention is to reduce the refractive capacity by increasing heat (from the side of the condensing steam as a result of effective organization of condensate removal, as well as improving the manufacturability by reducing the specific gravity |;

: Fig. 1 schematically shows a vertical capacitor; figure 2 - green I in figure 1; on fig.Z - section -A in figure 2.

I The vertical condenser has an orbital I, in which there are installed multi-upstream spiral coils 2 c) with different diameters of the winding of the heat-exchange tubes 3 about the axis 4. 1 the elements of the multiple winding in- | 1 are condensates that collection and, made in the form of grooves 5 along the entire length of the pavement. The number of grooves 5, and it is doubtful, and the number of turns in IrpiTinax 6, into which the heat exchange surface of the coil of the vitreous grooves 5 is divided, is determined depending on the condensate consumption from the surface of the coil taking into account the requirements for heat transfer efficiency : from the side of the condensing steam.

Q 5

20

25 30 5

67309

Between pipes 3

steam passage. K bottom welded

clearances 7 dl

top and with connections

there are

housing

bottoms

9 and tube grids 10 arranged in them, in which the ends of the heat exchange tubes 3 are fixed, and the nozzles of the steam inlet 11 and the condensate outlet 12. The vertical condenser works as follows.

The steam through the pipe 11 enters the condenser and, the passage through the gaps 7, is condensed on the heat exchange pipes 3, inside which the cooling medium flows. Since the pipes 3 have a small angle of inclination (less than 15), the condensate flows vertically to the underlying turns, and then into the trough 5 of the condensate collector, which moves down and out of the condenser through the nozzle 12 at the bottom bottom 8 o.

Claims (1)

Invention Formula A vertical condenser containing condensate-mounted multi-way spiral coils with different winding diameters of heat exchange tubes and a screw condensate collector placed between coils of coils, characterized in that, in order to reduce metal consumption and improve manufacturability, at least one of heat exchange tubes each coil is made in the form of a gutter, which serves as a condensate collector. FIG. 2 BUT Aa