SU846980A1 - Heat exchanger operation method - Google Patents

Description

(54) METHOD OF WORK OF HEAT PIPE

one

The invention relates to heat engineering, but rather to heat pipes, and relates to methods of heat transfer by closed circulation of a working fluid that changes its state of aggregation in heat input and heat removal zones .;

Methods are known for operating a heat pipe by evaporating the coolant, injecting the resulting coolant liquid vapor from the condenser, and then transporting the resulting mixture through the condensate line 1.

These methods of heat transfer in heat pipes require the presence of a flat liquid column in the condensate pipeline and, therefore, in the unfavorable direction of mass forces, the presence of large hydrostatic pressure losses and large temperature differences between the heat input and output zones.

The purpose of the invention is to increase the thermodynamic efficiency of heat pipes.

The goal is achieved by transporting the liquid coolant through the condensate line in a plug mode.

The drawing shows schematically a device that implements the method, a longitudinal section.

The heat pipe consists of a hermetic housing containing an evaporator 1, with a capillary-porous filler 2, a condenser 3, an injector 4, connected by a steam pipe 5 and condensate lines 6-8. The filler 2 of the evaporation zone from the inlet side of the coolant is provided with a recess 9, and from the opposite side - through channels 10. For pumping out and filling the pipe 10 there is a nozzle 11. In the absence of heat load, the level of liquid heat transfer fluid in the heat pipe corresponds to the cross section, therefore filler 2 always 5 remains wet.

15

When heat is supplied to the evaporator 1, the coolant evaporates, thereby absorbing the latent heat of vaporization and thereby causing the effect of evaporative cooling. The vapor pressure of the coolant is expelled from the steam line 5, the salt of the injector 4 and part of the condenser 3, filling in the recess 9, in which the fluid level B-iB is set.

Claims (1)

Claim The method of operation of the heat pipe by evaporation of the coolant, injection of the generated coolant vapor from the condenser and subsequent transportation of the resulting mixture through a condensate pipe, characterized in that, in order to increase thermodynamic efficiency, the transportation of the coolant fluid is carried out in plug mode.