SU1333949A1 - Thermal deaerator - Google Patents

Abstract

The invention relates to a power system and m. used to heat and deaerate water in thermal power plants. The invention makes it possible to increase productivity and increase hydrodynamic stability by increasing the throughput of the P01 vapor. The steam-by-pass hydraulic lock 6, built into the bubble plate 4, is suspended in the form of two half-shells 10, 11, the free edges of which are provided with a fairing 12. The latter are drop-shaped. An increase in the load of the deaerator causes the bypassing of a portion of the heating steam through the hydraulic valve 6. As a result, the water entering the initial section of the bubbler plate 4 is further heated and deaerated. Dp of preventing hydrodynamic disturbances, the capacity of the hydraulic lock 6 is increased due to the execution of the free edges of the half-walls 10, and F streamlined along the course of the steam. 1 nl .. L. “with and With oo 00 with 4: o

Description

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. The invention relates to a power system and industrial heating equipment, namely to thermal deaerators used for heating and de-aerating water, and can be used at thermal electric stations and in industrial heating boilers.

The aim of the invention is to increase productivity and increase hydrodynamic stability by increasing throughput

on a pair of steam overflow trap.

The drawing shows a thermal deaerator, a longitudinal section.

The thermal deaerator contains a storage tank 1 and a deaeration column, in case 2 of which a water distributor 3 is installed in the form of a jet tray, a bubbling tray 4 with built-in spillway 5 and steam circulation 6 hydraulic locks, pipes 7–9 for supplying deaerated water, steam and exhaust vapor, respectively . The steam overflow lock 6 is made in the form of two half-shells 10 and 11, the free edges of which are provided with a flap 12.

Thermal deaerator works as follows.

The water to be deaerated is fed through the nozzle 7 to the water distributor 3 of the deaeration column, drained through perforations to the deaerating device in the form of a bubbling plate 4 with the steam supply drain 6 and then through the overflow water lock 5 to the accumulator I. to the bottom of the column, passes through a bubble plate 4, providing final contact with water and deaeration of water upon contact with water, then enters the space under the water distributor 3, where it condenses the jets of water is carried preheating deaeration and coarse latter. Non-condensable gases released in

Compiled by L. Simoi. Editor L. Veselovska Tehred V. Kadar

3946/36 Circulation 387

VNISHI USSR State Committee

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

Sub

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

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The deaeration process is discharged through the pipe 9. An increase in the load of the Deaerator (thermal or hydraulic) causes a portion of the heating steam to bypass through the steam bleed valve 6, resulting in water entering and discharging from the initial portion of the bubble plate 4 and further heated and deaerated. In order to prevent hydrodynamic disturbances, the capacity of the hydraulic lock 6 is increased due to the fact that the free beams of the Duplexes 10 and 11 make it streamlined in the course of the steam.

The presence of fairings 12 ensures high rates of steam flow, as well as uniform movement of water in the hydraulic seal due to the absence of vortices and reverse currents, as a result of which the intensity of heat and mass transfer processes in the apparatus increases.

The profiling of the air seal 6 makes it possible to increase its throughput by a couple of 20-30% and thereby increase productivity, improve the quality of deaeration during overloads and increase the hydrodynamic stability of the deaerator.

Claims (1)

Invention Formula The thermal deaerator, containing the 1st case, inside which is installed a water distributor and a bubbling plate with built-in water drain and steam crossing hydraulic locks, the latter of which is made in the form of two half-walls, characterized in that, in order to increase productivity and increase hydrodynamic stability by increasing steam throughput, the free edges of the half-shells are provided with additionally installed fairings, for example, drop-shaped. Proofreader M. Demchik Subscription