SU1548620A1 - Heat-exchange apparatus - Google Patents

Abstract

The invention can be used in the systems of ventilation and heating of agricultural premises. The purpose of the invention is to increase the economy by increasing the uniformity of the change in the temperature of the soil (H). The heat exchange device contains an underground channel (K) 1, communicated with its inlet 2 and outlet 3 with the atmosphere and the consumer 4 of heat or cold G 5, as well as a number of heat pipes 6, evaporation sections 7 of which are located in G 5 below K 1 perpendicular the last, and the condensation sections 8 are in K 1 with a predetermined pitch along its axis, decreasing in the direction from the entrance section 2 to the output section 3. Below K 1 there is an additional duct (DK) 9 connected in air to K 1 and equipped with additional thermal pipes 10, evaporate housing sections 11 of which are installed in DC 9, and condensation sections 12 in D 5. Moreover, K 1 and DK 9 are equipped with shutoff valves 13 and 14. In winter, the air is heated in K 1 using heat D 5, while DK 9 is closed. In summer, the air is cooled in DC 9, using cold G 5, while K 1 is closed. Reducing the pitch reduces the uneven cooling of G 5. 1C. f-ly, 4 ill.

Description

the direction from the inlet section 2 to the outlet section 3. Below K 1 is an additional channel (DK) 9, connected in parallel to K 1 by air and equipped with additional heat pipes 109 evaporation sections 11 of which are installed in DK 9, and condensation sections 12 in G 5. Moreover, K 1 and DK 9 are equipped with shut-off valves

mi 13 and 14. In winter, the air is heated in K 1 using heat G 5, while DC 9 is closed. In summer, the air is cooled in DC 9, using cold G 5, while K 1 is closed. Reducing the pitch reduces the uneven cooling of G 5. 1C. f-ly, 4 ill.

The invention relates to heat engineering and power engineering and can be used in ventilation systems and heating of agricultural premises.

The purpose of the invention is to increase the economy by increasing the uniformity of change in the temperature of the soil.

FIG. 1 shows a heat exchange device, a general view of FIG. 2 is a section A-A in FIG. 1; in fig. 3 shows a section BB in FIG. 1 | in fig. 4 shows a section B-B in FIG. 2,

The heat exchange device contains an underground channel 1s communicated by its inlet and outlet sections 2 and 3, respectively, with the atmosphere and consumer 4 of heat or cold of the soil 5, as well as a number of heat pipes 6E, the evaporation sections 7 of which are located in the soil 5 below channel 1, perpendicular to the latter, and the condensation sections 8 are in channel 1 with a predetermined pitch along its axis, decreasing in the direction from the input section 2 to the output 3 0

In the soil 5 below the main channel 1 an additional channel 9 is placed, connected by air parallel to the main channel 1 and equipped with additional heat pipes 10g, the steaming sections 11 of which are installed in the additional channel 9, and condensation 12 are installed in the soil 5S and both channels 1 and 9 supplied with valves 13 and 14.

The device is equipped with an air intake 15 and a fan 1b. Channel 1 sections at the ground surface are provided with thermal insulation 17, the gap between the surface of heat pipes 6 and 10 and soil 5 can be filled with material 18 with a thermal conductivity greater than 5 at soil 5, for example, clay water solution . In the main channel 19 except heat pipes 6, which are

0

five

five

0

five

Preferably, they are not thermosiphon; wick condensation sections 19 of wick heat pipes with horizontal evaporation sections 20 that have silver sections 21 in additional channel 9 can be located.

The heat exchange device operates as follows.

In winter, with the help of fittings 13 and 14, the main channel 1 is opened, and the additional channel 9 is closed. The cold air through the air intake 15 by means of the fan 16 enters the channel 1, blows away the condensation silver sections 8 and 19, heats and enters F to the consumer 4 (for example, the heating system of the building). At the same time, the coolant in the evaporation areas 7 and 20 evaporates under the action of the heat of the ground 5

In the summer, channel 1 is closed, channel 9 is opened. The warm air enters the channel 9, is cooled, washing the evaporator sections 11 of the heat pipes 10, and goes to the consumer 4.

Due to the approach of air temperature to the temperature of soil 5 as it moves in channels 1 or 9, the radius of the cooling (heating) zone of the soil decreases to the output section 3. Reducing the pitch between the heat pipes towards the output section 3 allows the cooling intensity of the soil to equalize. The use of two underground channels 1 and 9 allows. reduce hydraulic losses in condensation areas that are not involved in heat exchange (compared to using one channel), since part of the heat pipes operating in the winter period does not work in summer and vice versa.

Claims (2)

1. A heat unit, containing an underground channel, communicated by its input and output sections, respectively, with the atmosphere and the consumer of heat or cold of the soil, as well as a series of heat pipes, the evaporation sections of which are located in the soil below the JQ of the channel perpendicular to the last , with a given step along its axis, characterized in that, in order to improve efficiency by increasing the uniformity of temperature changes, J5 7 installation of heat in the direction from the output. 2. The device under item 1, by that tl i- soil In addition to the main channel below, an additional channel is placed, connected in air parallel to the main channel and equipped with additional heat pipes, the evaporation stations of which are installed in the additional channel and the condensation pipes in the ground, both of which are equipped with stop valves fig.Z 4