SU901805A1 - Heat pipe - Google Patents

Description

Ieo () refers to heat exchanging devices, namely to heat pipes, and can be used in heat engineering.

A heat pipe is known that contains a housing filled with a coolant with evaporation, transport and condensation zones / equipped with a pumping device fed from a high voltage source 1.

The disadvantage of this heat pipe is the impossibility of transferring heat over a considerable distance.

Closest to the present invention, there is a heat pipe, containing a body filled with working medium with evaporation and condensation zones and an insert with sprinklers located in the evaporation zone located along the axis of the housing.

The disadvantage of this heat pipe is also the impossibility of transferring heat over large distances.

The purpose of the invention is to ensure the transfer of heat flux over long distances.

The goal is achieved by the fact that the insert is made in the form

the liner extended outside the housing in the condensation zone and having a spherical bottom, the liner section located outside the housing is provided with paired electrodes, and the inner space is made in the form of a truncated cone attached by its smaller base to the end of the housing in the evaporation zone , wherein the cavity of the sleeve is additionally connected to the cavity of the body in the condensation zone by means of an overflow tube installed in a gap with respect to the spherical 5 th bottom, and the outlet end of the tube is located along the liquid level of the working body.

In addition, sprinklers are arranged in a spiral.

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FIG. 1 schematically shows a heat pipe, a longitudinal section; in fig. 2 shows section A-A in FIG. 1. The heat pipe contains a housing 2 filled with a working body 1, provided in the evaporation zone with a capillary structure 3, and a sleeve 4 built into the end of the housing 4 with a spherical bottom 5 provided with paired electrodes 6 forming the spark

30. The gaps 7. The sleeve 4, located inside the body 2, is made in the form of a truncated cone 8 times the sprinklers, for example, in the form of nozzles 9. The cavity of the sleeve 4 is connected to the cavity of the body 2 by means of an overflow tube 10 forming spherical bottom 5 sleeves 4 clearance, a. The working body 1 completely fills the cavity of the sleeve 4 and forms a reserve layer in the lower part of the body 2. The body 2 in the transport zone can be made curved.

Heat pipe works as follows.

The heat transfer is carried out from top to bottom due to the circulation of the working fluid 1 through the evaporation and condensation zones, accompanied by a change in the state of aggregation.

The working heat 1 is supplied to the evaporation zone by creating a spark gap 7 between the electrodes 6, with each spark gap being a compression stage. When a high-voltage pulse is applied from an electric discharge current source to the electrodes b, an electrical discharge arises in the spark gap, the energy of which is transferred to the working fluid. As a result, a shock wave arises in it, which increases the pressure. The bits distributed by the software device sequentially run around the whole range of spark gaps 7 from the bottom up, repeated on the first of them, as soon as the discharge alternates in the third or fourth.

Thus, in the sleeve 4 to the upper end, they begin to move, increasing the pressure in the liquid working body, alternating compression waves, and the waves going to the lower end, having a reverse alternation, and due to the spherical bottom, the reflector 5, quickly fade out. The pressure in the cone 8 rises, and the working fluid 1 is supplied upwards, to a considerable height, where it is sprayed by the nozzles 9, irrigating the capillary structure 3 into the evaporation zones. To ensure the normal operation of the pipe, the sleeve 4

it must be completely filled with working fluid 1, and its flow and flow through the overflow tube 10 is balanced, which is ensured by the choice of the cross section of tube 10 and cone 8.

The proposed technical solution makes it possible to carry out heat transfer for a considerable distance when the pipe is operated in the field of gravity, which is impossible to accomplish using capillary structures.

Claims (2)

1. A heat pipe containing a housing filled with a working body with evaporation and condensation zones and an insert placed along the housing axis with sprinklers located in the evaporation zone, characterized in that, in order to ensure heat transfer, the flow over long distances, the insert is made in the form of a sleeve, outside the housing outside condensation and having a spherical bottom, with the sleeve section located outside the housing provided with paired electrodes, and the area located inside is made in the form of a truncated cone a, attached by its smaller base to the end of the body in the evaporation zone, while the cavity of the sleeve is additionally connected to the cavity Konnvсa in the condensation zone by means of an overflow tube installed with a gap in relation to the spherical bottom, and the input end of the tube is located below the level of the liquid-working medium. 2. A pipe according to claim 1, characterized in that the sprinklers are arranged in a spiral. : sources of information taken into account in the examination 1. USSR author's certificate number 646181, cl. F 28 D 15/00, 1974. 2. USSR author's certificate number 612141, cl. F 28 D 15/00, 1976. t / 7G t7 L j. / 1-D f Acr ; / 7 OT./