SU705236A1

SU705236A1 - Gravity heat pipe

Info

Publication number: SU705236A1
Application number: SU782634753A
Authority: SU
Inventors: Александр Васильевич Фомин
Original assignee: Харьковское Высшее Военное Командное Училище Хввку Им. Маршала Советского Союза Н.И.Крылова
Priority date: 1978-06-27
Filing date: 1978-06-27
Publication date: 1979-12-25

Description

(54) ГРАВИТАЦИОННАЯ ТЕПЛОВАЯ ТРУБА(54) GRAVITATIONAL HEAT PIPE

II

Изобретение относитс к теплообме ным аппаратам, а именно к тепловым трубам.The invention relates to heat pump apparatus, namely to heat pipes.

Известны тепловые трубы, имеющие герметичный корпус с основными и вспомогательными зонами конденсации и испарени , частично заполненный жидким теплоносителем , и работающие по принципу парлифта.Heat pipes are known that have a hermetic housing with main and auxiliary zones of condensation and evaporation, partially filled with a heat-transfer fluid, and operating on the principle of parlift.

Недостатком этих тепловых труб вл етс незначительна высота теплопередачи вследствие конденсации паровых пузырьков в парлифтовом пространстве.The disadvantage of these heat pipes is the insignificant height of the heat transfer due to condensation of steam bubbles in the steam lift space.

Наиболее близка к предлагаемому изобретению теплова труба, содержаща герметичный корлус с зонами испарени и конденсации , частично заполненный несмещивающимис между собой жидким теплоносителем и вспомогательной жидкостью с плотностью меньщей, чем плотность теплоносител , и канал возврата теплоносител из зоны конденсации в зону испарени .Closest to the proposed invention, a heat pipe containing a sealed corus with evaporation and condensation zones, partially filled with non-moving heat-transfer fluid and auxiliary liquid with a density less than the heat transfer density, and the heat exchange return channel from the condensation zone to the evaporation zone.

Однако в такой тепловой трубе теплоноситель может возвращатьс из зоны конденсации в зону испарени не по каналу возврата, а и по парлифтовому пространству , что ухудщает процесс теплопередачи .However, in such a heat pipe, coolant may return from the condensation zone to the evaporation zone not through the return channel, but through the lift room, which impairs the heat transfer process.

Цель изобретени - интенсификаци процесса теплообмена.The purpose of the invention is to intensify the heat exchange process.

Это достигаетс тем, что в корпусе установлена вставка, образующа центральный канал и выполненна в виде двух коаксиально расположенных в корпусе с кольцевыми зазорами обечаек, зазор между которыми в зоне испарени заглущен, причем.внутренн обечайка в этой зоне имеет перфорацию по периметру, а центральный канал на этом участке снабжен перфорированной торцовой заглущкой.This is achieved by installing an insert in the housing that forms the central channel and is made in the form of two shells coaxially arranged in the housing with annular gaps, the gap between which is filled in the evaporation zone, and the inner shell in this zone has perforation along the perimeter and the central channel on this site is provided with a perforated end cap.

На чертеже изображена предлагаема гравитационна теплдва труба.The drawing shows the proposed gravitational heat pipe.

Claims

The heat pipe has a sealed housing 1 with zones 2 and 3, respectively, of condensation and evaporation, filled with non-displaceable heat-transfer fluid 4 and auxiliary liquid 5, in which the cup 6, consisting of the outer 7 and inner 8 shells, is installed, the gap between which in the zone evaporation is plugged with an annular plug 9, the inner shell in this zone has radial holes 10 around the perimeter, and a perforated end cap 1 is installed in the channel formed by the inner shell in this area 1. When heat is applied to the evaporation zone 3, the heat carrier 4 boils and vapor bubbles, the passage through the perforated end cap 11 is crushed in it and form with the auxiliary liquid S a vapor-liquid emulsion that has a lower density than the heat carrier and as a result rises. Next, the auxiliary fluid 5 flows under the action of gravitational forces through the channel formed by the outer and inner shells 7 and 8, and through the openings 10 in the inner shell again returns to the inner recess of the insert, and the coolant vapor condensed on the surface of the condensation zone 2 flows down the channel formed by the outer shell 7 and the housing 1, in the zone 3 of evaporation. The presence of a coaxial insert avoids mixing of the fluid and heat of the carrier and intensifies the heat exchange process. Gravitational heat pipe containing a hermetic housing with evaporation and condensation zones, partially filled with immiscible heat transfer fluid and auxiliary liquid with a density less than the heat carrier density, and the heat exchange return channel from the condensation zone to the evaporation zone. characterized in that, in order to intensify heat exchange, an insert is installed in the housing, forming a central channel and made in the form of two shells coaxially arranged in a housing with annular gaps, the gap between which in the evaporation zone is jammed, and the inner rim in this zone has perforations along the perimeter, and the central channel in this area is provided with a perforated end cap.