SU998824A1

SU998824A1 - Thermosiphon refrigerator

Info

Publication number: SU998824A1
Application number: SU813252777A
Authority: SU
Inventors: Михаил Константинович Безродный; Сергей Симонович Волков; Владимир Борисович Иванов; Вячеслав Николаевич Петров; Валентин Михайлович Николаев
Original assignee: Киевский Ордена Ленина Политехнический Институт Им.50-Летия Великой Октябрьской Социалистической Революции
Priority date: 1981-03-04
Filing date: 1981-03-04
Publication date: 1983-02-23

Description

Изобретение относитс к метгиплургической промышленности и может быть использовано дл охлаждени горизонтальных или наклонных конструкций печей цветной и черной металлургии.The invention relates to the metallurgical industry and can be used to cool horizontal or inclined structures of non-ferrous and ferrous metallurgy furnaces.

Известна конструкци холодильника, в которой применена згоризонтальна цилиндрическа вставка с отверсти ми вдоль нижйей и верхней образующих, преп тствующа расслоению паровой и жидкостной фаз промежуточнохх теплоносител l3.A refrigerator structure is known in which a horizontal cylindrical insert with openings along the bottom and top is used, which prevents the separation of the vapor and liquid phases of the intermediate heat carrier l3.

Известен холодильник, в котором применена дополнительна горизонтально расположенна трубка дл возврата конденсата из зоны теплоотвода в зону теплоподвода L21.A refrigerator is known in which an additional horizontal tube is used to return condensate from the heat sink zone to the heat supply zone L21.

Недостат ом указанных конструкций вл етс их недостаточна надежность при высоких тепловых нагрузках вследствие малого движущего напора дл циркул ции промежуточного теплоносител .The disadvantage of these structures is their lack of reliability at high thermal loads due to the small driving head for circulating the intermediate coolant.

Наиболее близким к предлагаемому вл етс холодильник дл металлургических печей, содержащий корпус термосифона с горизонтальным расположением зоны теплоподвода с размещенной внутри ее цилиндрической вставкой иClosest to the present invention, there is a refrigerator for metallurgical furnaces, comprising a thermosyphon body with a horizontal heat supply zone with a cylindrical insert placed inside it and

вертикальным расположением зоны теплоотвода .vertical location of the heat sink zone.

Недостатками известной конструкции холодильника вл ютс недостаточна надежность вследствие наступлени кризисных влений при взаимодействии встречных потоков пара и жидкости на различных участках устройства, а также неэффективное охлаждение торцовой The disadvantages of the known design of the refrigerator are insufficient reliability due to the onset of crisis effects in the interaction of oncoming streams of steam and liquid in various parts of the device, as well as inefficient cooling of the end face.

10 части холодильника.10 parts of the refrigerator.

Целью изобретени вл етс повыиение интенсивности теплоотвода.The aim of the invention is to increase the intensity of the heat sink.

Цель достигаетс тем, что в термосифонном холодильнике, выполненном в The goal is achieved by the fact that in a thermosiphon refrigerator, made in

15 виде двух коаксиально расположенных изогнутых труб, из которых внешн вл етс корпусом, а внутренн вставкой , содержащем горизонтальный или наклонный учАсток подвода тепла 15 as two coaxially arranged curved pipes, of which the outer body is the case, and an inner insert containing a horizontal or inclined heat supply area

20 и вертикальный участок отвода тепла, верхний конец вставки выполнен перфорированным и жестко прикреплен к верхнему торцу корпуса а нижний конец вставки открыт и расположен с зазо25 ром по отношению к нижнему торцу корпуса.20 and a vertical section of heat removal, the upper end of the insert is made perforated and rigidly attached to the upper end of the case, and the lower end of the insert is open and located with a gap in relation to the lower end of the case.

На чертеже изображен термосифонный холодильник, продольный разрез.The drawing shows a thermosiphon refrigerator, a longitudinal section.

Термосифонный холодильник состоит Thermosyphon refrigerator consists

Claims

30 from a sealed enclosure 1 with a horizontal portion of heat supply 2 and a vertically located portion of heat sink 3. Inside the housing there is a bent insert 4 fixed in the upper part to the end of the heat sink zone. The upper end of the insert is perforated with holes 5 of a needle 5 for entering the condensed intermediate heat carrier fluid. The opposite end of the insert, located in the horizontal section of the heat supply, has a free exit b and does not reach the end of the body of the thermosyphon. During operation of the cooling device, the coolant located in the heat supply zone in the annular space between the housing 1 and the insert 4 evaporates and the vapor-liquid mixture formed in the vertical section of the heat sink 3, where the vapor condenses. Formed from the liquid phase coolant through the holes 5 enters the internal cavity of the insert 4 and under the action of the natural driving circulation pressure is supplied to the heat supply zone. From the insert 4, the liquid enters the jet through the free exit, enters the end of the heat supply zone, cools it, and then enters the annular space between the body and the insert. Further, the process is repeated. Thus, due to the location of the insert in the vertical section of the heat sink, a significant natural driving head is created, under the action of which an increase in the circulation rate of the intermediate coolant occurs. In turn, this leads to effective cooling of the eagle to the side surface of the body of the device in the heat supply area. The proposed construction of a thermosion refrigerator allows a significant increase in the resistance of horizontal and inclined cooled elements of metallurgical furnaces. The heat transfer capacity of the proposed refrigerator is 4-5 times higher than that of the known refrigerator. Claims the upper end of the insert is perforated and rigidly attached to the upper end of the body, and the lower end of the insert is open and positioned with a gap relative to the lower end of the body. Sources of information taken into account in the examination 1. USSR author's certificate number 574948, cl. F 27 V 3/24, 1974.

2. USSR author's certificate number 612136, cl. F 27 V 3/24, 1976.

3.Alabovsky A.N. et al. Investigation of the limiting heat fluxes of inclined thermosyphons with inserts. Izvesti Universities of the USSR, World Cup, 1980, № 1, p. 141-145.