SU1617293A1 - Deaeration collector of condenser - Google Patents

Abstract

The invention relates to a power system and can be used to deaerate water in condensers. The condensate to be deaerated through the channel 11 formed by the housing wall and the partition 7 is brought into the area of the steam separator 9, then through the labyrinth formed by the perforated screen 8, the partition 4 and the bubbling chamber 2, goes to the perforated sheet last and drains out through the drain channel 6 from the condenser . At low hydraulic loads, water in the drain channel 6 is fed in addition to chamber 2 through apertures 13. Under heavy loads, water in channel 6 is supplied both through apertures 13 and after treatment in chamber 2. This organization of flow hydrodynamics improves the quality of deaeration and hydrodynamic stability. 1 hp f-ly, 1 ill.

Description

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 The invention relates to heat power engineering and can be used to deaerate water in steam turbine condensers.

installations.

I. The aim of the invention is to increase

(qualities of deaeration and hydrodynamic stability.

I The drawing shows deaeration

condenser collector.

The deaeration tank 1, installed under the condenser bottom, contains a bubbling chamber 2 with a nozzle 3 supply of heat transfer fluid adjacent to the chamber 2 overflow partition 4, forming a drain with wall 5, drain channel 6, and I partition 7 with a perforated screen 8. Partition 7 installed with a gap relative to the bottom of the collection 1.

Under the screen 8 there is a steam-emitting device 9 connected to the pipeline 10 for supplying the heat transfer medium. The pipeline 10 is also connected to the pipe .5. The partition 7 forms in the collection space a supply channel 11 and a lifting shanch 12. In the overflow partition 4 there are 13 drain holes 13, and a regulating organ 14 is installed on the branch pipe 3. In the upper part of the collection 1, a window 15 is made to drain the steam, and in the lower part of the drain channel 6 is placed the drain pipe 16.

Deaeration collection raootast L.ie

puyuyim way.

 The condensate to be deaerated, by means of the stone 11, is brought to the zone of the steam dispenser 9, where it is superheated compared to the saturation temperature corresponding to the pressure in the collection space 1 at, determined by the vapor-liquid mixture in the lifting shaft 12.

Next, the condensate through the labyrinth passage formed by the perforated clone screen 8 and the partition 4 and the bubbling chamber 2 enters the upper part of the lifting unit 12, where, as the hydrostatic pressure drops, ei-o boiling and de-aeration occurs.

In the modes of low hydraulic loads, the treated condensate enters the drain channel 6 through the drainage system from version 13 and further through the drain connection Ib is discharged from the apparatus. At the same time, the level in the lifting frame 12 is maintained below the bubbling sheet of the chamber 2, and is adjustable. The connecting body 14 is closed and the coolant does not enter the bubbling chamber 2.

With an increase in the hydraulic load, the drain holes 13 no longer provide the MISS of the entire amount of condensate, the level in lifting tank 12 increases, while

one

the regulator 14 is opened and the coolant is supplied to the bubbling chamber 2,

In this case, the main part of the condensate, heated to saturation temperature, undergoes dogulite treatment with steam on the bubbling sheet of chamber 2.

Part of the steam remaining uncondensed and exhaust gases are discharged from collector 1 to the steam space of the condenser through the window 15.

In the considered design, the intensification of heat and mass transfer processes is provided.

At the same time, the hydrodynamic stability of the apparatus increases due to the creation of an additional portion of the bubbling treatment of the condensate and the elimination of stagnant zones.

In addition, mixing in the lift shaft is improved by arranging 20 movement of condensate through the labyrinth passage, which eliminates underheating of the codes to the saturation temperature.

In the mode of nominal, close to them and maximum hydraulic loads (the most severe conditions of operation), additional bubble treatment of the condensate on the sheet of the bubble chamber, is performed, and its temperature at the chamber entrance practically does not differ from the temperature; and corresponding to the pressure in the apparatus, which increases the contact surface of the phases s improves the quality of degassing.

Claims (2)

Isobrepepy formula i A condensation collector tank containing a bubbling chamber with coolant inlet pipes and a vertical overflow bridge IK adjacent to it, which forms a drain channel with one of the side walls of the collector. that, in order to improve the quality of deaeration and hydrodynamic stability, the collection is additionally provided with a vertical partition, installed between the bubbling chamber and the other side wall of the collection with a gap relative to the bottom of the latter, a perforated screen adjacent to the lower edge of the indicated partition, and a steam distribution device located at the bottom of the wall, Drain holes are made in the overflow partition under the barbial chamber. 2. Collection on a. 1. characterized by the fact that the regulator is installed on the supply pipe for the heat transfer medium into the bubbling chamber.