RU172532U1 - VENT Lining - Google Patents

Abstract

The utility model relates to the field of personal protective equipment of filter type and can be used to improve the physiological and hygienic characteristics of protective filter clothing. The lining consists of two layers of cotton fabric, between which ventilation ducts are longitudinally oriented relative to the human body, containing, as in the prototype, plastic springs. Unlike the prototype, the ventilation ducts are made of polyvinyl chloride or silicone tubes with holes for air to enter the suit space, located alternately with plastic springs. Air distribution panels are formed from the ventilation lining in the suit space of the KSIZ. The duct system in the panels is connected to the main tubes for supplying cooled air from the discharge device. This solution allows you to increase the evaporation surface with sweat-moistened clothing elements adjacent to the human body, and thereby provides effective heat removal from the human body. Placing the wiring panels on the front and back surfaces of the trunk, hips and shoulders while ventilating the mask space allows you to remove up to 60% of excess heat from the human body when performing a load with 370 watts of energy in a hot, dry climate. Technical result: increase in the duration of the average physical load gravity in protective filtering clothing at an air temperature of 40 ° C by 3.6 times.

Description

The utility model relates to the field of personal protective equipment for filtering skin type and can be used to improve the physiological and hygienic characteristics of protective filtering clothing (ZFD).

The relevance of the development of a venting lining is due to the need to improve the physiological and hygienic characteristics of the ZFD, which is used as part of a set of personal protective equipment (ISIS) of the filter type. Due to the violation of heat transfer in the "human-KSIZ-environment" system in a heating environment, the duration of the exercise of moderate physical severity in the combined protective filtering kit (OZK-F) at an air temperature of 40 ° C does not exceed one hour [1].

To create modern personal protective equipment against the damaging factors of weapons of mass destruction, it is necessary to use fundamentally new technologies that can significantly increase the duration of work in the ISIS. One of the promising solutions to the problem is to optimize the microclimate of the undersuit space due to its ventilation with cooled purified air.

Known developments that improve the physiological tolerance of CSIS due to the ventilation of the suit space. In a suit with modernized under-suit space ventilation (KZVP-M), air is supplied to the under-mask space with a volume velocity of 90-120 l / min, and in its modernized analogue, a special SIZ kit with an air cleaning and supply unit (SIZ-2UPV) is already provided ventilation of the under-mask and under-suit space with a volume flow of 120 l / min. Due to this technical solution and the subsequent discharge of air from the under-mask space to the overalls, the air volume flow in the undersuit space reaches 240 l / min. The capabilities of the ventilation system allowed to increase the duration of the exercise of moderate severity by personnel using KZVP-M in hot, dry climates by 15-20%, and in SIZ-2UPV - by 35-37% compared with the timing of similar work in other personnel protective means of an insulating type [2, 3].

However, the method of regulating heat transfer due to ventilation of the undersuit space, implemented in the described means of protection of the insulating type, is not applicable to the filter type of the protective equipment. The movement of air in the undersuit space is determined by the location of the air inlet into the undersuit space and the overpressure relief valves. In the filter-type safety control system, air can escape from the undersuit space through a package of filtering protective materials (FSM), therefore, to determine the ventilated space, a supply air distribution system is needed.

Also known are devices suitable for ventilation of the undersuit space of the West Federal District [4, 5].

The device for ventilation of the clothing area [4] contains evenly spaced ribs and ventilation channels, while the rib-rollers are made of hydrophobic fabric, contain compensation holes on the side surface and are filled with porous elastic material and are connected to a body made of plastic material; the body and the bases of the ribs are connected to the mesh fabric, and the ventilation ducts are formed by the mesh fabric, the side surfaces of the ribs and the body, and vertical through holes are made in the body above the ventilation channels.

A device for providing ventilation of the working space [5] contains evenly spaced ribs and ventilation ducts. The ribs are made of plastic material and are connected to a body made of the same material. The ribs and the body contain vertical through holes, and the body and the bases of the ribs are connected by a mesh fabric, ventilation ducts are formed by the body, the side surfaces of the ribs and the mesh fabric.

Both described devices are designed to improve the natural ventilation of the work area. Their main disadvantage is the lack of the possibility of active ventilation of the suit space of the West Federal District with forced air supply.

Closest to the proposed utility model is a ventilation-shock-absorbing hygienic lining [6]. This sample is selected as a prototype. The ventilation-absorbing hygiene pad made in the form of overalls contains ventilation ducts formed, for example, made of plastic, composite materials, etc. springs fixed between two layers of cotton fabric and (or) mesh, shock absorbing elements made in the form of lining fixed on the outside between adjacent springs in the area of interlayer crosslinking of cotton fabric of elastic cords made, for example, of polyethylene foam, equal in diameter or greater than the diameter of the springs and hinged sealing valves fixed in the area of the gate, bottom of the trousers and sleeves with the possibility of adjustable overlap of the free ends of the ventilation catch.

The main disadvantage of the described lining is the lack of the possibility of active ventilation of the suit space of the West Federal District due to forced air supply.

The problem to which the claimed technical solution is directed is to ensure uniform ventilation of the undersuit space of the West Federal District by forcing the supply of cooled air by a blowing device (micro-compressor, micro-fan) to increase the efficiency of heat transfer by evaporation.

The fundamental difference between the proposed ventilating lining from the prototype is the possibility of using it with a blower for forced supply of chilled air into the undersuit space in order to ensure active heat removal from the user's body.

The proposed utility model is illustrated in FIG. 1, which shows a fragment of a ventilating lining, where:

1 - the inner layer of tissue;

2 - the outer layer of tissue;

3 - springs;

4 - PVC tubes;

5 - holes for the intake of chilled air.

The technical solution of the utility model is to develop and use a ventilating lining. The lining consists of two layers of cotton fabric, between which ventilation ducts longitudinally oriented relative to the human body are sewn, containing, as in the prototype, plastic springs. Unlike the prototype, the ventilation ducts are made of polyvinyl chloride or silicone tubes with openings for air to enter the suit space, located alternately with plastic springs. From the ventilating lining formed panels air wiring in the space suit KSIZ. The duct system in the panels is connected to the main pipes to supply air from the discharge device.

The technical result provided by the given set of features that distinguish the claimed solution from the prototype is to increase the evaporation surface from sweat-moistened clothing elements adjacent to the human body, and to increase the efficiency of heat removal from the human body. Placing the wiring panels on the front and rear surfaces of the trunk, hips and shoulders while ventilating the mask space allows you to remove up to 60% of excess heat from the human body when performing a load with 370 watts of energy in a hot, dry climate.

The results of experimental testing of the effectiveness of using a venting lining are shown in table 1.

The data in the table indicate that the use of a ventilating lining formed in the wiring panel, located on the trunk, hips and shoulders, when ventilating the sub-suit space of the West Federal District with air cooled to 20 ° C with a space velocity of 200 l / min allows you to increase the duration of the exercise of moderate weight at an air temperature of 40 ° C 3.6 times.

Bibliography

1. Guidelines for the operation of personal and collective protective equipment, the use of the protective properties of the terrain and objects [Text] - Volsk-18: military unit 61469, 2002. - 187 p.

2. The act of state testing of prototypes of the upgraded combined-arms protective kit filtering OZK-F and a special set of PPE [Text]: code "Nerekhta-M". - Volsk-18: military unit 61469, 2005 .-- 427 p.

3. The act of state testing of a modernized protective suit with ventilated undersuit space KZVP-M (code "Svityaz"), developed by the State Unitary Enterprise "KazKhimNII" and passed preliminary tests [Text] / military unit 61469; hands. Shatalov E.V. - Volsk-18, 2002 .-- 95 s. - Performer: Shulga L.V. [and etc.].

4. Patent for utility model 39082 Russian Federation, IPC ⁶ А62В 17/00. Device for ventilation of the clothing area [Text] / Shchedrin A.K., Vlasov A.A., Pleshok S.A., Osipenkov A.A., Sultanov E.S. (The Russian Federation). - Application No. 2004106967; declared 04/09/2004; publ. 07/20/2004.

5. Patent for invention 2143294 Russian Federation, IPC ⁶ АВВ 17/00. Device for providing ventilation of the clothing area [Text] / Schedrin A.K., Bochenkov A.A., Vlasov A.A., Baskova T.N. (The Russian Federation). - Application No. 97103371; declared 03/05/1997; publ. 12/27/1999.

6. Application for invention 99125640/02 Russian Federation, IPC ⁶ F41H 1/02 (2000.01), A41D 27/02 (2000.01), A41D 13/02 (2000.01), A62B 17/00 (2000.01). Ventilation-absorbing hygienic lining [Text] / Golub Ya.V. (The Russian Federation). - Application No. 99125640/02; declared 12/07/1999; publ. 10/20/2001.

Claims (1)

Ventilating lining, consisting of two layers of cotton fabric, between which ventilation ducts longitudinally oriented relative to the human body are sewn, alternating with plastic springs, characterized in that the ventilation ducts are made of PVC or silicone tubes with openings for cooling air to enter the suit space, located alternately with plastic springs.

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