SU1402762A1 - Deaerator - Google Patents

Abstract

Invention m. B. used in thermal power plants and in industrial heating boilers. The purpose of the invention is to increase the efficiency of the deaerator by reducing the discharge flow. In the jet compartment 2, between the water distributor and the bubbling sheet 3, horizontal and two adjoining, vertical partitions (P) 11 and 9, 10 respectively, are installed adjacent to the water distributor. P 9 and 10 form with P 11 gaps for the passage of water, and made in P 9, 10 windows 12, 13 serve for the passage of steam. Window 12 is in the center of P 9, and window 13 is on the periphery of P 10 symmetrically to window 12. Chamber 14, formed by P and the housing, is connected by pipeline 15 to boiling chamber 4. Such an embodiment of the deaerator allows to intensify the process of phase interaction in the condenser, to increase the hydrodynamic stability of its work in the field of increased loads, and more complete use of the working volume of the apparatus and increasing the height of the condenser will reduce the total vapor consumption. 2 Il. (Oh (L

Description

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The invention relates to a power system and industrial heat engineering and can be used in thermal power plants and in industrial heating boilers for heating and deaerating water.

The purpose of the invention is to increase the efficiency of the deaerator by reducing the consumption of flash steam.

FIG. 1 shows a deaerator, a cross-section; in fig. 2 is a section A-A in FIG. one.

The deaerator contains a water dispenser 1, a jet compartment 2, a bubbling sheet 3, a boiling chamber 4, nozzles 5-8, respectively, supplying deaerated and superheated water, draining the deaerated water and vapors.

Partitions 9-11 are installed in the jet compartment 2, and in the vertical partitions 9 and 10 there are windows 12 and 13 for the passage of steam. The barriers 9 and 10 form gaps for the passage of water with the horizontal bar 11. Chamber 14, formed by partitions and casing, is communicated by pipeline 15 with boiling chamber 4. The deaerator is equipped with a steam overflow valve 16.

The deaerator works as follows.

The original water through the pipe 5 and the water distributor 1 is fed into the jet compartment 2 and then to the bubbling sheet 3, where its deaeration is completed. The heating medium — the overheated water — is supplied to the boiling chamber 4, from where the steam formed here is brought under the bubbling sheet 3, participates in the bubbling, and then partially condenses in the jet compartment. Next, the vapor-air mixture through the central window 12 in the partition 9 is fed into the chamber between the partitions 9 and 10, where it is divided into two opposite streams, and continuing to contact with the jets of the source water, partially condenses, and then through the side windows 13 is fed into the next chamber .

Here the mixture flows moving towards each other towards the center of the chamber where the outlet 8 of the vapor outlet is located. The condensate formed in the chambers moves through the gaps between the partitions 9-11 to the condensate collector, from where the condensate with the initial fluid flow is directed by gravity into the boiling chamber 4. Here, it shifts with superheated liquid, effectively heats up to a temperature close to the saturation temperature, and even partially overheats, boils and these m undergo deep processing with "clean steam on the squeeze sheet 3, as well as in the area of the steam-vapor valve 16 .

The combination of a condenser with a jet stage allows to reduce the height an.

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It is possible to increase the path of the contacted phases and achieve an intensification of the phase interaction, and hence an increase in the degree of condensation of steam from the cooled vapor-air mixture and a decrease in the vapor flow from the apparatus. The directional movement of the mixture along the chambers contributes to the additional condensation of steam by eliminating the mixture slips along the shortest path (from the jet compartment to the evaporator nozzle).

The branching of the steam flow in the chamber after passing through the central window 12, along with the 180 ° rotation of the flow, enhances the hydraulic stability of the chamber, and the movement of the flow to the center in the second chamber intensifies the interaction of the water and mixture flows, which compensates for the effect of vapor condensation mixture) along the path of its contact with the jets.

Thus, the intensification of the phase interaction processes in the condenser, the increase in its hydrodynamic stability in the field of increased loads, the emergence of the possibility of more complete use of the working volume of the apparatus and an increase in the height of the condenser can reduce the total consumption of steam, increase the compactness and productivity of the deaerator.

Claims (1)

Invention Formula A deaerator containing a water dispenser located in the housing, an inkjet compartment, a bubbling sheet, boiling chamber, deaerated and superheated water supply inlets, drainage of deaerated water and vapor, characterized in that, in order to increase the efficiency of operation by reducing vapor flow, in the jet compartment between the distributor and the bubbling sheet additionally installed horizontal and two vertical partitions adjacent to the water distributor, forming from the first gaps for the passage of water, the outlet pipe of the outlet The ara is located between the water distributor and the horizontal partition, windows for the passage of the vapor-gas medium are made in the vertical partitions, and in the partition remote from the outlet pipe there is one central, and in the next one there are two side walls that are located symmetrically to the last. A measure formed by the side stack of the hull and partitions is communicated by an additionally installed pipeline. FIG. 2