SU1333950A1 - Vacuum deaerator - Google Patents

Abstract

The invention relates to tenlo-power engineering and m. used for the preparation of feed water in thermal power plants. The invention allows to increase the productivity of the deaerator while improving the quality of deaeration. Installed above the overflow plate (PT) 3, the partition wall is the perforated and non-perforated portions of the PT 3. The vertical and horizontal partitions 14 and 15, located under the PT 3, form together with the latter and, case 1, the evaporation chamber (K) 16, . communicated with the pipe 8 supply of superheated w.odes. Overheated water through the pipe 8 by the flow regulator 19 is distributed. Depending on the load of the deaerator, Melsu K 16 and 17. At the same time, at low loads, the flow of the heating medium through the pipe 8 will allow K 16 to receive such amount of steam water in streams to t-ry, close to t-re saturation. At high loads, the consumption of the heating medium in K 16 increases to ensure a stable bubbling regime in the perforated part PT 3. 1 sludge. S (L 13 // SdE SA CO SOD

Description

one

The invention relates to heat and power engineering and industrial heat engineering, IN FAIRNESS to deaerators, which can be used for heating and deaerating feed and trickling water in thermal power plants and in industrial boiler houses.

The aim of the invention is to increase the capacity of the deaerator while improving the quality of deaeration.

The drawing depicts the proposed deaerator cross section. The vacuum deaerator contains 2 water distribution 2, overflow 3, and 4 plates, respectively, installed in the housing 1 of the distribution box. The housing 1 is equipped with nozzles 5-7, respectively, a supply of deaerated water, removal of deaerated water and non-condensable gases, and nozzles 8 and 9 of the supply of superheated water. The water distribution plate 2 by the partition 10 is divided into sections II and 12о. The partition 13, installed in the same plane with the partition 10, separates the perforated and non-perforated 1. 1 portions of the overflow plate 3. The vertical 14 and horizontal 15 of the partition with the plate 3 and the core 1 they form an evaporating chamber 16 in communication with the nozzle 8. Under the bubbling plate 4, partitions and a housing are formed by a bubbling chamber 17, also in communication with the inlet 9 pipes of superheated water. Nozzles 8 and 9 are communicated with nozzle-. com 18 of the entry of superheated water, equipped with a regulator 19 flow.

The deaerator works as follows.

The water to be deaerated through pipe 5 enters the water distribution container 2. At low load, the source water is distributed in the jet compartment through section 12 of the distribution plate 2. Next, heated in streams and partially deaerated water from the unperforated portion of overflow plate 3 is discharged onto the barotaly plate 4, where it is deeply deaerated. The deaerated water is drained from the deaerator through nozzle 6,

Under nominal and load loads, section 11 of the distribution plate 2 is turned on. In this case, the water is subjected to a bubbling

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not only on the plate 4, but also on the perforated portion of the overflow plate 3. The overheated water through the inlet 18 of the flow regulator 19 is distributed depending on the load of the deaerator between the cannons. measures 16 and 17, and at low loads, the flow rate of the heating medium through the nozzle 8 will allow to obtain in the evaporation chamber 16 such an amount of steam that will ensure that the source water in the streams reaches a temperature close to our temperature. At high loads consumption; of the heating medium into the additional evaporation chamber is increased to ensure a steady bubbling regime on the perforated portion of the tray 3. The zodes of the corrosive gases released during the bubbling of the zodes with the part of the non-condensed steam are diverted to the jet stage. x and the non-condensable gases are vented. through pipe 7.

Claims (1)

An increase in the working area and a decrease in the intensity of the steam flow in the bubbling stage allows an increase in the deaerator capacity and an improvement in the quality of deaeration. Claims. A vacuum deaerator containing a partially distributed perforated overflow water distributor J installed in the housing with a vertical partition adjacent to its lower part and a bubbled plate, the latter of which forms together with the partition and the bar- body. botal n: a chamber, and the case is equipped with nozzles for supplying deaerated and superheated water and removal of deaerated water, characterized in that, in order to increase productivity while improving the quality of deaeration, the deaerator is additionally equipped with vertical partitions above the overflow plate, and horizontal partitions below it, moreover, the partition over the overflow plate separates its perforated and non-perforated portions, and, horizontally and vertically, the partitions under the plate together with the latter form evaporation tion chamber communicating with a nozzle for supplying superheated water. thirty J5 40 45 50 55