SU840031A1

SU840031A1 - Thermal deaerator

Info

Publication number: SU840031A1
Application number: SU792817984A
Authority: SU
Inventors: Любомир Николаевич Курнык; Алексей Дмитриевич Кондратьев
Priority date: 1979-09-07
Filing date: 1979-09-07
Publication date: 1981-06-23

Description

Изобретение относится к теплоэнергетике, в частности, к термическим деаэраторам.The invention relates to a power system, in particular, to thermal deaerators.

Известен термический деаэратор, содержащий бак-аккумулятор и деаэрационную ко-, лонку 'с водораспределителем в верхней час- * ти и двумя размещенными одна под другой барбатажными тарелками, снабженными байпасными и .водосливными гидрозатворами и коллекторами для подвода пара под каждую из тарелок [1}. ¹⁰ A known thermal deaerator containing a storage tank and a deaeration column, with a water distributor in the upper part * and two barbate trays placed one below the other, equipped with bypass and water draining traps and collectors for supplying steam under each of the trays [1} . ¹⁰

Недостатком этого деаэратора является невысокая производительность.The disadvantage of this deaerator is its low productivity.

. Цель изобретения - повышение производительности. ₁₅ . The purpose of the invention is to increase productivity. _fifteen

Указанная цель достигается тем, что деаэратор снабжен установленной по центру первой по ходу барбатажной тарелки камерой с перфорированными верхним и нижним основаниями и сообщенной с водо- _мраспределительным патрубком, при этом верхняя кромка последнего размещена выше минимального уровня воды в водораспределителе.This object is achieved in that the degasifier is provided with a first set centered barbatazhnoy downstream chamber with the perforated plates the upper and lower bases and communicating with the water distribution pipe _m, while the upper edge of the latter is placed above the minimum water level in the water distributor.

Для. повышения эффективности деаэрации барбатажные тарелки выполнены в виде размещенных один под другим перфорированных листов, пространство между кото рыми заполнено насадочными элементами омегообразной формы.For. To increase the deaeration efficiency, the bubble trays are made in the form of perforated sheets placed one below the other, the space between which is filled with omega-shaped nozzle elements.

Поддон водосливного гидрозатвора выполнен перфорированным.The drain spillway tray is perforated.

На чертеже схематически изображен термический деаэратор, продольный разрез.The drawing schematically shows a thermal deaerator, a longitudinal section.

Над баком-аккумулятором 1 установлена деаэрационная колонка 2 с водораспределителем 3 в верхней части и двумя размещенными одна под другой барбатажными тарелками 4. Коллекторы 5 предназначены для подвода пара под каждую из тарелок. Водосливные гидрозагворы» барбатажных' тарелок выполнены в виде опущенных в расположенный по периферии колонки 2 поддон 6 вертикальных перегородок 7 и 8 различной высоты. В первую по ходу воды барбатажную тарелку 4 встроена по центру камера 9 с перфорированными верхним и нижним основами840031 ями, сообщенная с водораспределителем 3 патрубком 10. Верхняя кромка патрубка 10 расположена выше уровня воды на водораспределителе, соответствующего минимальной нагрузке. Тарелки 4 выполне- ₅ны в виде размещенных один под Другим перфорированных листов 11 и 12, пространство между которыми заполнено насадочными элементами 13 омегообразной формы. Поддон 6 гидрозатвсра выпол- ю нен перфорированным.Above the storage tank 1, a deaeration column 2 is installed with a water distributor 3 in the upper part and two sparger plates 4 placed one below the other. The collectors 5 are designed for supplying steam under each of the plates. Spillway water seals of the “bubble” plates are made in the form of vertical partitions 7 and 8 of various heights lowered into the pallet 6 located at the periphery of column 2. In the first in the course of the water, a bubbling plate 4 is integrated in the center of the chamber 9 with perforated upper and lower bases 840031, connected to the water distributor 3 by the nozzle 10. The upper edge of the nozzle 10 is located above the water level on the water distributor, corresponding to the minimum load. Plates 4 are made ₅ in the form of perforated sheets 11 and 12 placed one below the other, the space between which is filled with nozzle elements 13 of an omega shape. Drain pan 6 is completely perforated.

Деаэратор работает следующим образом.Deaerator works as follows.

Деаэрируемая вода подается в колонку на водораспределитель 3, с которого ₁₅струями стекает на первую по ходу воды .тарелку 4 и через гидрозатвор, образованный перегородкой 8 и поддоном 6 сливается в бак—аккумулятор 1. При достижении гидравлической нагрузки барбатажных та- 20 редок 4, превышающей допустимое значение, уровень воды на водораспределителе стает выше верхней кромки патрубка 10, и часть воды через последний переливается в камеру 9. Из камеры 9 вода 25 струями поступает на нижнюю барбагажную Гарелу и через гидрозатвор, образованный перегородкой 7 и поддоном 6, - в бак-аккумулятор 1. Греющий пар, подводимый по коллекторам 5 под тарелки 4, зо контактируя с водой, образует высокотурбулизированную барбатажную смесь, в которой осуществляются;; процессы догрева и деаэрации воды. Пройдя барбатажные участки, пар поступает под водораспреде- 35 литель 3 и конденсируется на струях воды, сливаемой с него. Здесь происходит основной нагрев и грубая деаэрация воды. Несконденсировавшиеся газы отводятся в линию выпара (не показана). 40Deaerated water is fed into the column to the water distributor 3, from which it flows down ₁₅ jets onto the first water flow. The plate 4 and is discharged into the storage tank 1 through the hydraulic lock formed by the partition 8 and the tray 6. Upon reaching the hydraulic load, the bubble gas carts 20 are rare 4, exceeding the permissible value, the water level on the water distributor rises above the upper edge of the nozzle 10, and part of the water through the latter is poured into the chamber 9. From the chamber 9, water 25 flows by jets to the lower barrage Garela and through the hydraulic lock formed by the a small town 7 and a pallet 6, into the storage tank 1. The heating steam supplied through the collectors 5 to the plates 4, in contact with water, forms a highly turbulent bubbling mixture in which they are carried out ;; processes of heating and deaeration of water. Having passed the bubbling sections, steam enters under water distributor 35 and condenses on the jets of water discharged from it. Here, the main heating and rough deaeration of water occurs. Non-condensing gases are led off to a vapor line (not shown). 40

Общий расход воды в деаэраторе делится на две части, обрабатываемые раздельно на каждой из тарелок 4 и сливаемые в бак 1 через совмещенный гидрозатвор. Эго снижает линейную нагрузку каждой из тарелок наполовину, и следовательно, позволяет увеличить ее вдвое., 'Гем самым увеличивается диапазон эффективных нагрузок и производительность деаэратора. Конструкция барбатажных тарелок позволяет увеличить время и поверхность контакта фаз, что увеличивает эффективность деаэрации.The total water flow in the deaerator is divided into two parts, processed separately on each of the plates 4 and discharged into the tank 1 through a combined water seal. The ego reduces the linear load of each of the plates by half, and therefore, allows you to double it., 'Gem thereby increases the range of effective loads and the performance of the deaerator. The design of the bubble trays allows to increase the time and contact surface of the phases, which increases the efficiency of deaeration.

Claims

The invention relates to a power system, in particular, to thermal deaerators. A thermal deaerator is known, which contains a storage tank and a deaeration tank. A container with a water distributor in the upper part of the H has two spaced plates under the other, equipped with bypass and drainage traps and manifolds for supplying steam for each of the plates t l The disadvantage of this deaerator is its low capacity. . The purpose of the invention is to increase productivity. This goal is achieved by the fact that the deaerator is equipped with a chamber installed along the first along the barbatuage trap with perforated upper and lower bases and communicated with the distribution pipe, with the upper edge of the latter placed above the minimum water level in the water distribution box. For The efficiency of the deaeration of the barbing plates is made in the form of perforated sheets placed one below the other, the space between which is filled with head-shaped elements of a brush shape. The spillway trap tray is made first (} jurienny. The drawing diagram (1) shows thermal deaerator, longitudinal section. They are designed to supply steam for each of the plates. The drainage water seals of the barbathe plates are made in the form of 6 vertical partitions 7 and 8 of different height at the bottom located in the periphery of column 2 The first in the course of the water the barbatula plate 4 is built in the center of the chamber 9 with perforated upper and lower bases, communicated with the water distributor 3 by 1 O. The upper edge of the nozzle 10 is located above the water level on the water distributor corresponding to the minimum load. perforated sheets 11 and 12, the space between which is filled with nozzle elements 13 of a meme-shaped form. The pallet 6 hydroaatvora execute perforated. The deaerator works as follows. The deaerated water is supplied to column 2 at the water distributor 3, from which it flows to the first taillus 4 along the water and through the water seal formed by the partition wall 8 and the tray 6 is discharged into the tank - accumulator 1. When it reaches. the hydraulic load of the barbatu rio 4, exceeding the permissible value, the water level at the water distributor 3 is above the upper edge of the nozzle Yu, and part of the water through the latter is poured into the chamber 9. From chamber 9 water flows into the lower barbatula plate and through the hydraulic partition formed by a partition 7 and the pallet 6, into the tank-battery 1. The heating steam supplied through the collectors 5 under the plates 4, in contact with water, forms a highly turbulent barbatic mixture, in which the following processes are carried out: dy Passing the barbatu sites, the steam enters under the water distributor 3 and condenses onto the streams of water drained from it. Here, the main heating takes place and coarse deaeration of non-condensable gases is diverted to a vapor line (not shown). The total consumption of water in the deaerator is divided into two parts, processed separately on each of the plates 4 and discharged into the tank 1 through a combined hydraulic lock. This reduces the linear load of each of the plates by half, and therefore allows it to be doubled. This thereby increases the range of effective loads and the capacity of the deaerator. The design of the barbatashe plates makes it possible to increase the time and surface of the contact phase, which increases the efficiency of deaeration. Claim 1, a thermal deaerator, containing a storage tank and a deaeration column with a water distributor in the upper part and two barbag trays placed one under the other, equipped with bypass and drain hydraulic locks and manifolds for supplying steam for each tray that differs from In order to increase productivity, the deaerator is equipped with a centrally mounted first along the water of the bubble tray chamber with perforated and upper and lower bases and communicated with the water distributor chopping, while the upper edge of the latter is placed above the minimum water level in the water distributor.

2. The deaerator according to claim 1, characterized in that, in order to increase the efficiency of deaeration, the barbing plates are made in the form of perforated sheets placed one under another, the space between which is filled with packing elements of a shaped form.

3. Deaerator on PP. 1 and 2, characterized in that the drain pan trap is perforated. Sources of information taken into account in the examination 1. USSR Author's Certificate No. 719969, cl. C O2 B 1 / 1O, 1978.

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