SU1366845A1 - Method of operation of heat pipe - Google Patents

Abstract

The invention allows to increase the heat transfer ability and efficiency of the heat pipe. The liquid coolant, moving under the action of capillary forces, is supercooled with the help of a heat exchanger 8, to which thermal energy is transferred when the enthalpy is lowered to t-ry (1 + ± T), where T is the ambient temperature, and further heated by an additional heater 9, taking the enthalpy of heating the heat transfer fluid 4. This method allows, without changing the internal structure of the pipe, only due to additional removal and further supply of thermal energy consumed to change the enthalpy of the condensate flow, to increase the heat Reda characteristics pipe. I il. with

Description

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11366845

FIELD OF THE INVENTION The invention relates to heat engineering, namely to heat transfer devices.

The purpose of the invention is to increase the heat transfer capacity and efficiency.

The drawing schematically shows a heat pipe, a general view.

The heat pipe is made in the form of a closed ring with separate steam and liquid channels 1 and 2, respectively. Inside the heat pipe there is a capillary structure 3 saturated with heat-transfer fluid 4. Energy to the evaporator (evaporation zone) is supplied by heater 6, in the condenser (condensation zone) heat is removed by heat exchanger 7. Along the path of the heat-transfer fluid, there is an additional heat exchanger 8 before the evaporator, i.e. Heater 6, along the path of the heat-transfer fluid, is an additional heater 9.

The method is carried out as follows.

When heat energy is supplied to the heater 6, the heat transfer fluid 4 is evaporated from capillary structure 3, the formed vapor 5 is transferred through the vapor channel I to the condenser and condenses on the capillary structure 3, returning the phase transition energy to the heat exchanger 7 at the saturation temperature. Next, the heat transfer fluid, moving under the action of caprillar forces, is supercooled with the help of heat exchanger 8, to which thermal energy is transferred at 40 when the enthalpy is reduced to a temperature. (I + O, 1) TOC, where T o the ambient temperature, is further heated by an additional heater 9, taking away the enthalpy of heating the liquid 45 heat carrier 4. Thus, the heat transfer capacity of the heat pipe in which this method of operation is carried out will increase.

The method of operation of the heat pipe allows a rather simple method. Compiler A. Lobanov Editor L. Pokhan Tekhred L. Serdyukova, Corrector I. Muska

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at once, without changing the thermal pipelines, then additional removal and heat energy, changing the enthalpy of the torus, to increase the thermal performance

Especially effective is the use of the method with heat carriers, about the magnitude of the latent heating, but having a freezing tour. There is a wider class of heat used in thermal rye that are widely used in the transfer of heat to energy plants on thermal power plants and heat recovery systems.

Practically equal to the fluid path of a tempering medium, it is possible to lay, for example, in the ground, in a liquid, in the bottom of a river, etc.

Form l iso

The method of operation of the heat by the circulation of heatable steam steam and ferrules with phase evaporating zones and the supply and removal of warm cooling of the condenser of the liquid channel has the conical heat transfer efficiency, is heated in the liquid between the zono area extra which lead to the pace

+ 0.1) T., where TOC is the external channel.

environment

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at the same time, without changing the internal structure of the heat pipe, only due to the additional removal and further supply of heat energy consumed to change the enthalpy of the condenser flow, to increase the heat transfer characteristics of the heat pipe and the efficiency of heat transfer.

Especially effective is the use of the method in heat pipes with heat carriers having a small amount of latent heat of vaporization, but having a low freezing point. Thus, the class of coolants used in heat pipes, which are widely used in the transmission of thermal energy in powerful power plants, such as thermal power plants, in metallurgical processes, as well as in thermal energy utilization systems, is expanding.

The practical equality of the temperature of the liquid path to the ambient temperature allows this path to be laid, for example, on the ground or in the ground, in a liquid, for example, on the bottom of a river, and the like.

Form of the invention

The method of operating a heat pipe by circulating a heat transfer fluid through separate steam and liquid channels with its phase transformations in evaporation and condensation zones during heat supply and removal and additional cooling of the condensate in the liquid channel section, In order to increase the heat transfer capacity and efficiency, the condensate is additionally heated in the liquid channel in the area between the evaporation zone and the additional cooling section, which leads to the temperature (1 +

+ 0.1) T., where TOC temperature

external channel.

fluid environment

Claims (1)

Claim The method of operation of the heat pipe by circulating the coolant through separate vapor and liquid channels with its phase transformations in the evaporation and condensation zones during the supply and removal of heat and additional cooling of the condensate in the area of the liquid channel, characterized in that, in order to increase the heat transfer capacity and of economy, the condensate is additionally heated 45 in the liquid channel in the area between the evaporation zone and the area for additional cooling, which lead to a temperature of (1 + i 0.1) T _os , where T _os - t temperature 50 external environment surrounding the fluid channel.