SU1548640A1 - Heat transfer apparatus - Google Patents

Abstract

The invention relates to heat engineering, can be used in heat transfer devices, and allows to reduce the weight and size characteristics by increasing the temperature potential of the heat release in the condenser. The heat transfer device contains a circulating circuit with an evaporator 1, a condenser 2 and an auxiliary chamber 3. In the latter, a separator-condensate collector with screw channels 7 is installed in which liquid is collected. When the latter hits the heater 4 in the chamber 3, high pressure and temperature steam is formed, which, mixed with low pressure steam, enters the condenser 2, where it condenses and under the action of excess vapor pressure through the inductor 11 enters the evaporator 1. 1 sludge.

Description

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liquid is collected. When the latter hits the heater 4 in the chamber 3, high pressure and temperature steam is formed, which mixes with the low pressure steam, falling. The invention relates to the field of heat engineering and can be used in testing devices in Instrument Making

The purpose of the invention is to reduce the size and size characteristics by increasing the temperature potential of the heat rejection in the condenser.

The drawing shows

my device, a general view.

The device contains a circulating circuit with an evaporator 1, a condenser 2 and an auxiliary chamber 3, equipped at the bottom end with a heater 4 with a capillary-porous coating. In addition, a separator / condensate collector is installed in chamber 3, made in the form of two coaxial shells 5 and 6E in the gap between which screw channels 7 are made, and the upper ends are covered with 8 ”Brush

The contour from the upper end of the chamber 3 is connected to the cavity of the inner shell 5 and the gap between the shells 5 and 6 and at the connection points provided with valves 9 and 10, and the throttle 11 is installed at the inlet to the evaporator 1.

The device works as follows,

A low pressure vapor-liquid mixture periodically enters the auxiliary chamber 3 through the check valve 9. Its supply is due to periodically created vacuum in this chamber 3 "Next, the low pressure vapor-liquid mixture enters the gap of the condensate separator separator, where using grid 8 and screw channels 7 it is divided into clean low pressure steam supplied through grid 8 into the internal cavity of the inner shell 5, and to the fluid that collects in the screw channels 7 and flows under the force of gravity onto the superheated surface of the heater 4 at the lower end of the chamber 3 When the liquid boils on the superheated

It enters the condenser 2, where it is condensed and under the action of excess vapor pressure through the choke 11 enters the evaporator 1. 1 sludge.

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The surface of the heater 4 in the auxiliary chamber 3 forms high-pressure and temperature steam, mixes with the low-pressure steam, obtaining pressure and temperature higher than the pressure and temperature of the incoming vapor-liquid mixture. The valve 9 is closed, and the valve 10 under the action of the overpressure of the steam produced in the auxiliary chamber 3 opens and the vapor enters the condenser 2 with the pressure and temperature of a higher potential, condenses and under the action of the same overpressure of the steam enters to the evaporator 1. Thus, the heat-transfer fluid to the evaporator 1 is returned from the condenser 2, and the pressure in the condenser rises higher than the pressure in the evaporator, and by means of forced Circulation is an auxiliary chamber 3, creating an excessive vapor pressure. The heat release surface area of such heat exchangers substantially depends on the temperature of this surface (surface reduction is proportional to the temperature increase in the fourth power). The invention reduces the surfaces of the radiation heat exchangers and, consequently, their weight and size characteristics by increasing the temperature potential of the heat removal.

Claims (1)

Invention Formula A heat transfer device containing a circulation circuit with an evaporator installed therein, a condenser and an auxiliary chamber with a heater having a capillary-porous coating, the circuit at the points of connection to the auxiliary chamber equipped with check valves, characterized in that, in order to reduce the mass size, 515486406 by increasing the yen, the screw channels, and the upper ends of the temperature potential of the discharge are tep-covered with a grid, while the heater is in the condenser, in the auxiliary section at the bottom of the chamber with a gap relative to the chamber, the end face is additionally installed from the side of its upper end a separator-condensate collector is added, to the cavity of the inner shell and zazo- made in the form of two coaxial ruins between the shells, and at the entrance to the wells, in the gap between them steam-steam installed choke.