RU2572265C1 - Underground structure with natural heat-exchange ventilation - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: underground structure with the natural heat exchange ventilation consists of a housing of the underground structure, an intake air channel, an air release channel. The device additionally comprises the heat exchange plates located along the perimeter of the intake air channel, which exchange the heat distributed in the thickness of the soil with the air circulating due to draft power, carrying out ventilation and heating of the underground structure premises.

EFFECT: creation of the device with natural non-volatile ventilation with the possibility of recovery of heat distributed in the thickness of the soil, which enables to maintain positive temperature inside the underground structure, providing natural ventilation, preventing dangerous level of gas contamination of premises.

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Description

The invention relates to the field of ventilation and air conditioning, and in particular to devices with natural ventilation with heat recovery. Areas in which an underground structure with natural heat exchange ventilation can be used:

facilities for placement of rechargeable batteries of autonomous power sources, technological wells, as well as various premises for household purposes in conditions of low average annual temperatures.

Known portable ventilation device VSP 500, used to purge technological wells during repair and maintenance work in communication networks. [1] (Group of Companies "Euromash" WWW / evromash.ru / catalog / venti / portable radial fans VSP-500).

Having small dimensions, it can be transported in a passenger car. Power is supplied from a rectified voltage network of 12 V.

The main disadvantage of this system is its volatility. Such installations can be operated immediately before the start of work by maintenance personnel. Thus, the problem of autonomous round-the-clock ventilation of underground structures with the risk of gas contamination is not solved.

The closest in technical essence and the achieved result to the claimed underground structure with natural heat exchange ventilation is an underground structure with an artificial microclimate. [2] (WWW.abok.ru library of scientific articles abok No. 8 of 2003 "Features of creating a microclimate in underground structures in frozen soils." VP Korovkin, Norilsk Industrial Institute; LA Belkina, PO Norilskenergo MMC Norilsk Nickel, Fig. 6). It consists of the body of the underground structure, the supply air channel, the air removal channel, the heater of the first heating stage, the heater of the second heating stage. Outside air enters the supply air channel through the first stage of the heater, where it heats up to t = 0 ° C. Further, passing through the heater of the second heating stage, installed in the lower part of the room, thermostated air enters the underground structure and is removed through the air removal channel. Thus, the problem of ventilation and maintaining the set temperature in the underground structure is solved.

The main disadvantage of the prototype is the lack of heat recovery of positive temperature, which remains virtually unchanged at a certain depth in the context of the whole year. In addition, when constructing underground mines equipped to accommodate batteries of autonomous power sources, such as photovoltaic panels or wind turbines, there is an urgent need to reduce energy costs for own needs. The use of electricity for heating dramatically reduces the efficiency of low-power autonomous energy sources.

The objective of the present invention is to develop a device with natural non-volatile ventilation with the possibility of utilizing heat distributed in the thickness of the soil.

The essence of the present invention lies in the fact that the claimed underground structure with natural heat exchange ventilation, consisting of a body of a underground structure, a supply air channel, an air removal channel, according to the invention, further comprises heat exchange plates located along the perimeter of the supply air channel, which exchange heat, distributed in the thickness of the soil with air circulating due to the traction force, producing ventilation and heating of the underground structure.

The drawing shows a diagram of an underground structure with natural heat exchange ventilation, where:

1 - the body of the underground structure;

2 - supply air channel;

3 - channel removal of air;

4 - heat transfer plates.

External air enters the body of the underground structure due to the difference in specific gravities created by the different heights of the supply air channel 2 and the air removal channel 3, relative to the ground zero level. Passing through the heat exchange plates 4, the air takes part of the heat distributed in the thickness of the soil. The further process of heat transfer occurs during the circulation of heated air, carried away by traction. Thus, there is a process of natural ventilation with the selection of soil heat.

The non-volatile process of soil heat transfer by circulating air due to the difference in specific gravities allows maintaining a positive temperature inside the underground structure, providing natural ventilation, preventing a dangerous level of gas contamination of the room.

Information sources:

1. Group of Companies "Euromash" WWW / evromash.ru / catalog / venti / portable radial fans VSP-5002.

2. WWW.abok.ru library of scientific articles abok No. 8 of 2003 "Features of creating a microclimate in underground structures in frozen soils." V.P. Korovkin, Norilsk Industrial Institute; L.A. Belkina, Production Association Norilskenergo MMC Norilsk Nickel, Fig. 6.

Claims (1)

An underground structure with natural heat exchange ventilation, consisting of an underground structure building, a supply air channel, an air removal channel, characterized in that it further comprises heat exchange plates located around the perimeter of the supply air channel, which exchange heat distributed in the soil with circulating due to traction forces with air producing ventilation and heating of the underground structure.

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