SU568809A1 - Thermal pipe - Google Patents

Description

The invention relates to the field of heat engineering, in particular to heat pipes, operating on dielectric liquids, intended for cooling electronic equipment. Thermal pipes are known that contain an evaporator and an X | Forklift, in which porous electrodes are embedded. However, such an arrangement of electrodes can only have an effect if used as a heat carrier for the electrolyte. When dielectric fluid is used as a heat transfer medium, these pipes are inoperative. Heat pipes are also known that contain a housing with longitudinal slits on the inner surface; insulated electrodes are placed in a tar-cutter, to which a potential difference is applied; the electrodes are mounted one from another, at a distance varying along the length of the pipe; under the action of the potential difference, the liquid begins to move from the condensation zone to the evaporation zone 2. However, in these pipes the shape of the electrodes does not adequately use the required power, does not create heterogeneity of the electric field along the heat pipe and thus does not affect the coolant flow from .in the evaporator. In addition, in these pipes it is impossible to act separately on the condensation zone and the evaporation zone. The aim of the invention is to expand the range of regulation of heat transfer properties. This is achieved by the fact that in the proposed pipe the electrode between the zones is divided by an insulating gasket into two parts with an independent supply voltage and in the evaporation zone has a surface area diminishing to the gas 1P | Cross-section. The drawing shows the described pipe, a longitudinal section. The heat pipe contains a grounded housing / inside of which an electrode is located, divided by gasket 2 into two parts 5 and 4. The inner wall of the housing / has a capillary structure with a heat carrier. Gasket 2 is made of dieslectric material and isolates parts of the electrode. Part 3 of the electrode is located in the evaporation zone 5 and has a cross-sectional area decreasing to the laying 2, and part 4 is located in the condensation zone 6. Each part of the electrode is independently connected to the source and the 7 and S voltage (When the voltage is applied to the parts 3 and 4 of the electrode from the sources 7 and S voltage in zone 5, the evaporation of the solid and the pressure increases. Due to differential pressure, the vapor vapor moves to the zone

6, where it condenses on the wall of the housing 1 and enters the evaporation zone 5. The process then repeats.

Separation of the electrode "and the two parts 3 and 4 allow you to act separately on the evaporation zone" the condensation zone. Performing part 3 of the electrode with a cross section that decreases towards the gasket makes it possible to reduce the interelectrode gap along the direction / ao from the condensation zone to the evaporation zone, which, in turn, can expand the range of heat transfer properties.

F, about rmu l and inventions

The heat pipe containing the evaporation and condensation zones of the heat carrier and an electrode located along the axis, is characterized in that, in order to expand the range of control of the heat transfer properties, the electrode between the zones is divided by an insulating gasket into two parts with independent supply voltage and in the evaporation zone has decreasing laying area of cross section.

Sources of information taken into account in the examination:

1. USSR author's certificate number 357427 "l. F 25 19/04, 1969.

2.Thomas B. Jones, Michel Perry Electrodynamic heat pipe. International Journal of Heat and Mass Transfer, vol 16, n ° 5, 1973.

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