SU1295139A1 - Heater of heating-system water - Google Patents

Abstract

The invention relates to power engineering and can be used in steam turbine installations of tagged power plants. The device improves the economics of the preheater by more efficient removal of non-condensable gases. The vertical partition (p) 10 is installed with a gap to the tube plate 5 and with a minimum gap in relation to the pipes of the first turn 2. P 10 is installed to the tube recess 7 g 00

Description

The second and second passages 2 and 3, the steam supply pipe opening is placed perpendicular to P 10. The vapor – gas mixture (PS) cooler is formed by the lower part of P 10, shell 11, which encloses a part of pipe 2 between the lower horizontal P 12 and tube plate 5, In the shell 1 has a suction-mounted PS nozzle installed coaxially. From the side opposite to the last, in the shell 1 A window is made. Heating steam act1

The invention relates to the power industry and can be used in network water heaters of steam turbine plants of thermal power plants.

The purpose of the invention is to increase the economy of the heater by more efficient removal of non-condensable gases.

FIG. the heater design is shown, vertical section; figure 2 - section aa in Fig .; figure 3 - section bb in fig 1; figure 4 - section bb In figure 1.

The heater contains (figure 1) case 1 with a two-way pipe system including first and second strokes 2 and 3, respectively, fixed in the upper 4 and lower 5 tube plates and connected to the inlet 6 and outlet 7 water chambers through the installed underneath the lower tube plate 5 turning chamber 8, steam supply pipe 9, mounted under the tube plate 4, vertical partition 10, installed with a gap to the tube plate 5 and with a minimum gap in relation to the pipes of the first stroke 2, with the hole of the socket 9 perpendicular to the partition 10, the vapor-gas mixture cooler formed by the shell 11 (FIGS. 2 and 4), covering a part of the pipes of the first stroke 2 between the lower horizontal partition 12 and the tube plate 5, the lower part of the partition 10, the lower transfer bar 12 and the tube plate 5, while in the shell, there is a pat in the upper part of the housing 1 and is divided into two streams, washes the pipes, heats the water in them and condenses. Through the gaps between the walls of the housing 1 and the pipes, steam flows in the direction of the pipe 2. PS and non-condensable gases are collected at the lower P 12, through the window in the shell 1 1 enter the PS cooler, where they are cooled and condensed and removed through coaxial pipes. Corps 1. 1 3. P. f-al}, 4 Il.

logs 13 (figure 4), mounted coaxially to the nozzle 14 suction of the vapor-gas mixture, which can be equipped with a device 15 for suction gases. With

side opposite the pipe 13, in the shell 1 made the input window 16. The shell 11 can be made with perforations and exceed the level of the partition 12 (figure 2).

The heater works as follows.

Network water enters chamber 6, passes through the pipes of the first 2 and second 3 strokes through the turning chamber 8, enters chamber 7, and is removed from housing 1. Gray 1 st steam enters through the pipe 9 into the upper part of body 1 and is divided by partition 10 into two streams, using partitions 12 to wash the pipes, heat the water in them and condense them.

Since the steam consumption through the pipes of the second stroke 3 is less (higher temperature of the pipe walls), the steam flows towards the pipes of the first stroke 2 through the gaps between the walls of the housing 1 and the pipes. The steam-gas mixture and non-condensable gases are collected at the lower partition 12, through the inlet

The window 16 enters the vapor-gas cooler, where it is cooled and condensed and removed through the pipes 13 and 14 by means of the device 15 from the housing 1.

Claims (2)

1. Preheater network water, comprising a housing with two-way pipes 312 a system mounted in the upper and lower tube plates and connected to the inlet and outlet water chambers through a rotary chamber installed under the lower tube plate, horizontal partitions installed between the tube plates, a steam supply pipe installed below the upper tube plate, a vapor-gas cooler , the steam and gas mixture suction nozzles installed in the housing in the area of the vapor gas mixture cooler, which is increase efficiency, the heater is equipped with a vertical partition, installed with a minimum clearance in relation to the pipes of the first course between the pipes of the first and second 394 with a gap to the lower tube plate perpendicular to the plane of the aperture of the steam supply pipe, and a shell with a pipe installed between the lower pipe plate and a nearby horizontal partition and covering the lower part of the first course pipes, and the vapor-gas mixture cooler is formed by the lower part of the partition wall, the lower horizontal partition and the lower tube plate, and the nozzle of the shell is installed coaxially pipe suction steam-gas mixture. 2. Preheater according to claim 1, characterized in that the entrance window is made on the side from the side opposite the nozzle. YU. eri2.3