RU2541499C1 - Conditioner breather - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: conditioner breather contains a mask and a heat exchanger, serially interconnected. The heat exchanger is designed in the form of two tubes positioned one inside the other and equipped with inhalation and expiration valves that alternatively switch over between the inner tube space and the intra-tube space. The ventilation tube is made of a heat conductive material while the outer one is made of a heat insulation material. According to the second version of the invention, the conditioner breather contains a mask and a heat exchanger, serially interconnected, with the heat exchanger represented by a heat conductive tube enclosed in a heat insulation material.

EFFECT: apparatus may be useful in frosty weather, in a bath-house or in a contaminated atmosphere.

3 cl

Description

The invention relates to ecology and can be used to protect the human respiratory system in temperature-uncomfortable conditions.

Widely known are means for protecting the respiratory organs and for influencing them, such as: gas mask, scuba gear, anesthesia apparatus, and a respirator. Common to all of them is a sealed mask and a tube for breathing. Known apparatuses for patents RU A62B 7/00 2329839; RU A62B 7/00 2262965; RU A61M 16/01 2466749; RU A62B 18/02 2288012; RU A62B 18/00, A62B 18/08 2301094; RU A62B 23/00 2480257; RU A62B 7/00 2329839; RU A62B 7/12 2308306 US A62B 18/00 3739774; US A61F 5/08, A62B 23 / 02A 6116236; US A62B 18/02 7575006. Their common disadvantage is that they either do not protect against temperature discomfort or are complex.

The closest in technical essence to the claimed invention is a respirator-air conditioner selected as a prototype according to the patent of the Russian Federation No. 2329839 (RESPIRATOR-AIR CONDITIONER) containing a mask, a filter and a heat exchanger.

The disadvantage of this prototype is the complexity of manufacturing.

The objective of the invention is to remedy this drawback, as well as expanding the range of respiratory equipment in temperature-uncomfortable conditions.

The problem is solved due to the fact that the heat exchanger is made in the form of two tubes located one in the other and equipped with inspiration and expiration valves, which alternately switch the space of the inner tube and the annulus between each other, the inner tube being made of a heat conductor and the outer one of a heat insulator. Actually, the heat transfer medium is an internal heat-conducting tube.

During breathing, the exhaled and inhaled air alternately exchanges heat with the internal heat-conducting layer, and thereby exchanges heat with each other through this heat conductor. Exchange will be more effective the better the insulation layer and the longer the tube.

The proposed apparatus, as it were, lengthens the nose in the sense of heat transfer, since the nose for a person, among other things, is a "heat exchanger".

So, in the sauna with the next inhalation, the hot air will again have to heat the inner tube of the apparatus, which was cooled during the previous exhalation. Thus, less hot air will come to the respiratory system.

In frost, on the contrary, exhaled air will heat the duct.

The efficiency of the process can be changed by the length and shape of the tube, on which convection and heat transfer depend. It is also possible to place some loose air-permeable heat-conducting mass (for example, a metal sponge) in the tube to improve heat transfer.

To stay in clean conditions (in a sauna, and often on a frosty street), a filter is not required and the apparatus can be simplified by removing the filter.

The apparatus can also be simplified by removing the valves and leaving one tube instead of two tubes, making it two-layer: the outer layer is a heat insulator, the inner one is a heat conductor, that is, having executed the heat exchanger as a heat conducting tube coated with a heat insulator. In the latter case, the exhaled (enriched in carbon dioxide) is mixed with the inhaled air, but the expected internal volume of the tube is relatively small, and such a mixture is even considered useful [Mishustin Yu.N. Breaking the deadlock. Errors of medicine are corrected by physiology. - Samara: Samara Printing House, 2007. - 80 p.].

If an inspiration tube of sufficient length is made with the two-tube version, breathing with clean air can be ensured when working in a dirty environment in a closed volume (for example, when welding in a trench, a well) and in the absence of a filter.

So, the proposed device can be useful in cold weather, in a bath (sauna), in a polluted air environment.

Claims (3)

1. Respirator-air conditioner containing a mask and a heat exchanger interconnected in series, characterized in that the heat exchanger is made in the form of two tubes located one in the other and equipped with inspiration and expiration valves, alternately switching the space of the inner tube and the annulus with each other, with the inner the tube is made of a heat conductor, and the outer one is made of a heat insulator. 2. A respirator-air conditioner containing a mask and a heat exchanger connected in series, characterized in that the heat exchanger is a heat-conducting tube, clad in a heat insulator. 3. Devices according to claims. 1, 2, characterized in that they additionally have a filter.