SU1257358A1 - Deaeration unit - Google Patents

Description

1257358

about t and l. water heating steam in the area between the tactile one that the additional pressure regulator and the retaining ycf column is connected to the steam system.

2, Ustliovka p.

The invention relates to water treatment, in particular to deaeration of water and water, and can be used in thermal power plants.

The purpose of the invention is to increase the cadre deaeration of water while reducing its consumption.

The drawing shows a deaerator-on installation, a general view,

The installation contains an accumulator tank 1, a main deaeration column 2 above it with a water distributor 3 and an additional column 4 installed inside the tank 1 coaxially with column 2. The additional column 4 has a water distributor 5 located in its upper part, and a ring overflow 6 set on the perimeter of its casing from the outside in the area of the water distributor 5. The trough 6 and the water distributor 5 are communicated by means of throttle holes 7 / made in the wall of the casing of the column 4. The latter the bottom is connected to the overflow channel 6 by means of a steam elevator 8 / For supplying water to the installation, pipe 9, connected to the water distribution: an impeller 3, and for supplying steam - a steam line 10 with a pressure regulator 11 and a supporting device 12, connected to the tank the accumulator 1. The steam line 10 is connected by lines 13 and 14 to the additional column 4 and the steam elevator 8, respectively. Line 13 is connected to the steam line 10 on the C 10 between the pressure regulator 11 and the retaining device 12. The main column 2 is equipped with a pipe 15 for air release, and an additional column 4 with a pipe 16. The height of the outer wall of the trough is chosen such that its upper edge was above the water level on the water distributor 5..

thirty

40

Deaerator installation works as follows.

Water through line 9 is fed to the water distributor 3 of the main column 2, where it, after passing a row of jet plates, is treated with steam, supplied from the storage tank 1, then the zod is fed to the water distributor 5 of the additional column and is treated with steam supplied on line 13. From column 4 water is diverted to the trough 6 using a steam elevator 8, the design capacity of the water distribution system 5 is chosen as Greater than the calculated nominal productivity of the main column 2, for example, by 10%. Therefore, the water from trough 6 is divided into two streams; one (90%) - through the outer wall of the GEERELET from the storage tank 1, and the other (10%) - through the throttle openings 7 enters the water distribution valve 5 for replication. Such a solution is necessary to prevent the battery-tank 1 from column 2 from entering the nominal mode of water, in addition to the additional column 4. When the water consumption decreases to the deaerator unit, the recirculation increases as the water level decreases. on the water distributor 5, serves to maintain the flow rate of the water on the additional column 4, Gray steam is fed into the installation through the steam generator 10, the pressure regulator 11, which serves to maintain a constant pressure and temperature deaerated dy, and the supporting device in the tank battery 15 where it comes from

to column 2. In this column (1 c. deaeration stage), heating and removal of the main mass of gas occur. Part of the heating steam (due to the hydraulic resistance of the retaining device 12) enters the additional column 4 -C - O stage

deaeration, where the removal of residual gases. The final deaeration of water takes place in the steam elevator of the 8-111th deaeration stage, the steam to which enters via line 14.

For good deaeration, the heating steam must be overheated. Since in the deaerator plant, thanks to recycling, the editor is provided by M. Dshin

Compiled by I. Lapin

Tehred I.Popovich Proofreader E.Roshko

Order 6596 Circulation 398 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

, Production and printing company, Uzhgorod, st. Project, 4

73584

In the hydraulic mode of the additional column 4, when the flow rate of the water to the main column 2 fluctuates, the quality of deaeration remains high over a wide range of load variations. Additional water treatment with steam in the lift also contributes to the high quality of the deaeration.

Claims (2)

1. DEAERATOR INSTALLATION, containing a storage tank, naponpo-i of heating steam water with a pressure regulator and backup device and equipped with a main and additional column located coaxially above the tank and inside it, respectively, about replicating. In order to improve the quality of water deaeration under variable loads, the additional column is equipped with an annular overflow trough installed around the perimeter of its body in the area of the water distributor and communicated with the latter via throttle openings, and a steam lift connecting the additional column at its bottoms with overflow bark, vol. 2. Installation according to claim 1, characterized in that the additional column is connected to the steam line of the heating steam in the area between the pressure regulator and the retaining devices.