SU807028A1

SU807028A1 - Contact-type heat exchanger

Info

Publication number: SU807028A1
Application number: SU792762984A
Authority: SU
Inventors: Анатолий Никитович Кабаков; Виктор Евгеньевич Щерба
Original assignee: Омский политехнический институт
Priority date: 1979-05-07
Filing date: 1979-05-07
Publication date: 1981-02-23

Description

(54) КОНТАКТНЫЙ ТЕПЛОСБМЕННИК(54) CONTACT HEAT EXCHANGER

II

Изобретение относитс к теппоэнергетике , в ч ж: ТВ ости, к конструкции контакт- ного теппообменника.The invention relates to thermal power engineering, including: TV brackets, to the design of a contact heat exchanger.

Известен контактный теплообменник, содержаший корпус, разделённый перегородкой на подвод щий и отвод щий отсеки, причём перегородка выполнена с полостью внутри дл охлаждающей жидкости. В отвод щем О1секе установлен наклонный перфорирсюан)Ш1й козырёК. В нижней части корпуса предусмотрен гидроэатеор дл барботировани через него охлаждаемого воздуха l.A contact heat exchanger is known, which comprises a housing divided by a partition into supply and discharge compartments, the partition being made with a cavity inside for the cooling fluid. In the outlet O1sek there is an inclined perforayuan) WIyK. In the lower part of the body there is a hydro-atomizer for bubbling cooled air l through it.

Недостатке такого теплообменника вл етс низка эффективность теплообмена иэ-аа невозможности автоматического регулировани уровн жидкости по температуре .The disadvantage of such a heat exchanger is the low efficiency of heat exchange and it is impossible to automatically control the liquid level with temperature.

Наиболее близким к изобретению вл етс контактный теплооб«(енник, содержаший вертикальный корпус с патрубками подвода и отвода газа, подключенными, соответственно, в нижней и верхней част х корпуса, и установленный в послеп-The closest to the invention is a contact heat sink (ennik containing a vertical body with gas inlet and outlet nozzles connected, respectively, in the lower and upper parts of the body, and installed

нем горизонтальный дырчатый барботажный лист 2.He horizontal perforated bubble sheet 2.

Недостатком этого теплообменника вл етс низка эффективность теплообмена при работе на переменных режимах.The disadvantage of this heat exchanger is low heat exchange efficiency when operating in variable conditions.

Цель изобретени - повышение эффективности теплообмена путём регулировани положени дырчатого барботажного листа.The purpose of the invention is to increase the efficiency of heat exchange by adjusting the position of the perforated bubbling sheet.

Указанна цель достигаетс тем, что This goal is achieved by the fact that

0 теплообменник снабжен размещённым в корпусе нал листе сильфоном, заполненным низкокип щей жидкостью и жестко соединенньп /1 штангой с корпусом и дырчатым барботажньпи листом, а последний ус5 . тансвлен в корпусе подвижно в вертикаль) нс л направлении.,0, the heat exchanger is provided with a bellows placed in the housing, filled with a low-boiling liquid and rigidly connected / 1 with a boom to the housing and a perforated bubbling sheet, and the last us5. tansvlen in the case movably in a vertical) ns l direction.,

На чертеже схематически изображен контактный теплообменник.The drawing shows schematically a contact heat exchanger.

Claims

In the vertical case 1 a horizontal perforated bubbling sheet 2 is placed, mounted with the possibility of moving in the vertical direction with the help of balls 3 "Case with; cone) with branch pipe --1 of gas supply to b1 and lower part of case 1; liquids, respectively, In the upper part of the body there are nozzles 7 dp of gas outlet from the heat exchanger. Above sheet 2 is placed a syphon 8 with rods 9 and 10 attached to it, the other ends of which are rigidly fixed in the housing and the perforated sheet 2, respectively. Contact heat exchanger works as follows. Cooled gas The pipe 4 is fed to the lower part of the housing 1, from where it is bubbled into the cooled liquid through the holes in the aperture sheet 2. Passing through a layer of liquid, the gas is cooled to a g & temperature, slightly different from the temperature of the liquid, and enters the upper part of the apparatus and then through pipes 7 to the consumer. As the temperature of the gas entering the heat exchanger increases, the temperature of the outgoing gas also increases and, consequently, the amount of heat supplied to the bellows increases. The low-boiling fluid in the bellows begins to evaporate, the vapor pressure increases above it, and the bellows begins to open, moving the hole sheet 2 down with the balls 3. As the hole sheet 2 moves down, the height of the liquid layer above it increases and the gas temperature drops to almost original value. Thermodynamic equilibrium is established in the bellows. The proposed cokstrukish contact heat exchanger apparatus allows you to automatically maintain the temperature of the outgoing gas, close to the set, thereby increasing the efficiency of the device as a whole. In addition, the presence of gaps for the passage of gas around the perimeter of the perforated sheet makes it possible to eliminate the possibility of the formation of near-wall stagnant liquid zones. Claims of the invention: A contact heat exchanger comprising a vertical case with gas inlet and outlet nozzles connected, respectively, in the lower and upper part-, tx of the case, and installed in the latter a horizontal perforated bubbling sheet that differs in temperature exchange by adjusting the position of the perforated bubbling sheet, the heat exchanger is provided with a bellows placed in the housing above the sheet, filled with low-boiling liquid and connected by a rod to the housing and a perforated bar and the latter is mounted in the housing movably in the vertical direction. Sources of information taken into account during the examination 1. USSR author's certificate No. 231564, cl. F 28 C 3/06, published. 1967.

2. The patent of France МЬ 2172256, кл. F 28 C 3/16, published. 1973.