SU961645A1 - Heat-proof suit - Google Patents

Description

The invention relates to the protection of a person working under conditions of a heating microclimate, in particular, to heat protection suits.

Known heat suit, containing a jumpsuit with a helmet and perforated elastic tubes, located inside the jumpsuit and connected to the air supply pipeline through the manifold 1.

Also known heat shield suit, containing a jumpsuit with a helmet and perforated elastic tube, located inside the jumpsuit and connected to the air supply pipeline through the manifold 2.

One in the known bone, heat is removed from the human body only through the use of convective heat exchange.

The purpose of the invention is to increase the protective properties of a suit by increasing the intensity of heat removal from the human body.

This goal is achieved by the fact that a heat shield bone containing a helmet with a helmet and perforated elastic tubes located inside the jumpsuit and connected to

the air supply line through the collector, additionally has a unit for humidifying and cooling the supply air, consisting of two pairs of ducts arranged inlet, the inlet branches of which are connected to the air supply duct, and the output branch with the manifold, liquid nozzles installed in one of the channels , an air dryer located in another channel, and a two-position valve mounted on the inlet branches of the channels and connected with a time relay, the overalls containing an inner layer of An air-permeable material, a middle layer of hydrophilic material and an outer layer of perforated heat-reflecting fabric, and perforated tubes are fixed between the inner and middle layer.

The drawing shows the proposed teplotzcine KOCTKW, General view.

Claims (2)

The heatproof suit contains a jumpsuit 1 with a helmet 2 and perforated wavy elastic tubes 3 located inside the jumpsuit 1 and connected through flexible chhtang 4 to the inlet pipe 5 by means of the manifold 6. The suit additionally has a means for moistening and cooling the supplied air consisting of two parallel channels 7 and 8, the inlet branches 9 and 10 of which are connected to the air supply pipe 5, and the outgoing branches 11 and 12 with the collector b, nozzles 13 to supply a fluid installed in one channels 7, a dehumidifier 14 of air located in another channel 8, and a two-way valve 15 mounted on the inlet branches x 9 and 10 of channel 7 and 8 and associated with time relay 16, the overalls containing an inner layer 17 of breathable material The middle layer 18 is made of hydrophilic material and the outer layer 19 is made of perforated heat-reflecting fabric, for example cotton, fixed in the spaces between rows of tubes 3, and the perforated tubes 3 are fixed between the inner 17 and middle 18 layers. The perforation of the outer layer 19 is 3.5 mm. Tubes 3 are made of silicone or plasticized polyvinyl chloride with a diameter of 3-4 mm and placed over the entire surface of the overalls 1 in the form of long loops, the ends of which are led out to the collar (not shown), where they are combined with a collector 6.. heat treatments are given an oval shape, and then they are perforated with openings with a diameter of 0.8-1.0 mm every 25-30 mm at small oval radii in order to allow air streams to run parallel to the surface of the human body. . . -; . The principle of the suit is as follows. . . ,,. .: From a power source (not shown), air flows through pipe 5 to collector b through a two-way valve 15, which is connected to time relay 16. At predetermined time intervals, the relay 16 controls the valve 15, which directs the flow of air into the inlet branch 10 of the axle 14j then through the inlet branch 9, nozzle 13. When air passes through the branch 9 with the nozzle 13, a portion of fluid flows on average 10 minutes to 5.0-180 g in the air flow and humidified air enters through pipe 4 to collector b and airway elastic tubes 3. Since the tubes 3 are perforated along the entire length, the humidified air passes through the perforation to the middle layer 18 and partially to the inside. morning layer 17, tight-fitting body of a person. Then valve 15 from time relay 16 takes a different position, air enters dehumidifier 14 and further along pipe 4 through manifold 6 and pipe 3 to the human body. At the same time, dry air evaporates the previously supplied moisture of the inner layer 17 along with the human sweat and hydrophilic layer 18. This achieves complete heat removal from the surface of the body. Each cycle is repeated at regular intervals by means of a relay 16. The operation mode of the relay 16 is set depending on the specific conditions of the person’s operation. For example, under conditions of high temperature, 60–70 and low relative humidity of air, 20–30%, the flow rate of moisturizing fluid for one suit is 15.0–18.0 g / min, and air flow is 200–250 l / min. and under conditions of 40 ° C and a relative humidity of 85-90%, the flow rate of the moistening liquid is 5-15 g / min, and the air flow rate is 200-300 l / min. Claims of the invention A heatproof suit containing a jumpsuit with a helmet and perforated elastic tubes located inside the jumpsuit and connected to an air supply pipe. By means of a collector, characterized in for moistening and cooling the supply air, consisting of two parallel channels arranged, the inlet branches of which are connected to the floor pipe air, and output with a manifold, nozzles for supplying fluid installed in one of the channels, an air dryer located in another channel, and a two-way valve mounted on the inlet branches of the channels and connected to a time relay, the overalls containing an inner layer of the air-permeable material, the middle layer of the hydrophilic material and the outer layer of the perforated heat-reflecting fabric, and the perforated tubes are fixed between the inner and the middle layer. Sources of information taken into account in the examination 1. US patent 3345641, cl. 2-21, 1971. 2. Patent of Great Britain 1354372, cl. A 3 U, 1974 (prototype). / 7 tz fO t