SU1300287A1 - Heat pipe - Google Patents

Abstract

This invention relates to heat engineering. The invention allows to increase the heat transfer capacity when the pipe body is made of a material with a low thermal conductivity. On the inner surface of the pipe body 1, a cap structure (CS) 2 is placed, made in the form of layers of grids 3. The lateral edges of the latter in the areas of heat supply and removal are hermetically brought out through the wall of the body 1 to the outside. In the heat supply zone, the sections of the CS 2 located outside the pipe body 1 are heated. Further, along the frame of COP 2, the heat flux is transferred into the heat pipe, ensuring evaporation of the heat transfer medium. The vapor of the latter is then condensed and returned under the action of capillary or gravitational forces to the heat supply zone. 3 il. co about nd 00 fpa2.2

Description

The invention relates to tagging engineering, namely to heat transfer devices.

The aim of the invention is to increase the heat transfer capacity when making the pipe body of a material with low thermal conductivity,

Fig. 1 schematically shows a heat pipe, longitudinal; 2 is the same, the cross section of FIG. 3 is a heat pipe with a capillary structure in the form of an artery, a longitudinal section.

The heat pipe contains a hermetic body 1 partially filled with coolant and a capillary structure 2. Made in the form of layers of meshes 3 or in the form of an artery 4 placed on the inner surface of the body 1. on layers with a uniform gap between them (figures 1 and 2). The ends of the artery 4 is brought out of the housing 1 through its ends and dissolved

(figure 3). The housing 1 is made of a material with a low thermal conductivity (for example, injection molded from plastic), and a capillary structure of a material with a high thermal conductivity (for example, copper). The plastic flows in the manufacture of the housing into the pores of the capillary structure in the areas of its discharge from the housing, which ensures the tightness of these

plots. The zones of heat supply and removal are marked by the corresponding arrows.

Heat pipe works as follows.

In the heat supply zone, portions of the capillary structure 2 located outside the housing 1 of the heat pipe are heated; then, along the frame of the capillary structure 2, the heat flux is transferred into the heat pipe, ensuring evaporation of the coolant, the steam of which is then condensed and returned under the action of capillary or gravitational forces to the tegate supply zone.

Formula of invention

A heat pipe with heat input and removal zones, containing a sealed body partially filled with heat carrier with a capillary structure on the inner surface made of mother; evil with high heat conductivity, characterized in that, in order to increase heat transfer capacity when the pipe body is made of material with a low tegshovodnost, capillary structure in the areas of heat supply and removal is brought out of the housing through its side surface or end walls.

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Editor K. Voloshchuk

Compiled by A. Lobanov

Tehred M. Khodanich Proofreader L.T.

Order 1138/38 Circulation 612 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5

Production and printing company, Uzhgorod, st. Project, 4

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Claims (1)

Claim Heat pipe with heat supply and removal zones, Containing a sealed housing partially filled with coolant with a capillary structure on the inner surface made of a material with high thermal conductivity, characterized in that, in order to increase the heat transfer capacity when the pipe body is made of a material with low thermal conductivity , the capillary structure in the zones of heat supply and removal is brought out of the housing through its side surface or end walls. Fig! ϊ 300287 FIG. 3