RU185705U1 - INSULATING RESPIRATORY APPARATUS - Google Patents

Abstract

The utility model relates to chemically bound oxygen insulating breathing apparatus designed to protect respiratory organs in an emergency. The technical result when using the utility model is to increase the reliability of launching the device into operation. The technical result is achieved in that in an insulating breathing apparatus with chemically bound oxygen containing a regenerative cartridge with a regenerative product, a breathing bag with an overpressure valve, a face connected to a regenerative cartridge with a corrugated tube, and a starting device consisting of a starting briquette and an ampoule with initiating fluid, according to a utility model, the breathing bag is made of a polyimide-fluoroplastic film of the PMF type and enclosed in a case of heat-resistant high-strength t cani, the breathing bag is fixed on a regenerative cartridge, additionally connected by force tapes to the front part. The application of the proposed utility model “Isolating breathing apparatus” allows to increase the reliability of work, durability, expand the functionality, increase the safety of work in emergency situations. 6 c.p. f-ly, 12 ill.

Description

The utility model relates to chemically bound oxygen insulating breathing apparatus designed to protect respiratory organs in an emergency.

Known insulating breathing apparatus on chemically bound oxygen (US Pat. RF 2610572, IPC A62B 7/08, A62B 7/00, 12/20/2016) containing a cartridge with a regenerative product mounted in the respiratory bag connected to the respiratory organs isolation unit, between the organ isolation unit an intermediate chamber equipped with windows connecting the chamber with the cavity of the respiratory bag, the windows are equipped with shut-off elements made in the form of inspiration valves and an inlet of the cartridge with a regenerative product. The switchgear is made in the form of a plate of foamed metal with open pores. The regenerative product is made in the form of a package of plates installed with a gap relative to each other. The cartridge and the intermediate chamber are made in the form of shells of a polymer film.

The disadvantage of this apparatus is the insufficient heating of the regenerative product with the heat of the starting briquette, since most of the heat is dissipated into the surrounding space through the walls of the breathing bag and part of the heated gas-air mixture from the breathing bag is supplied directly to the user's breath through the inspiration valves, bypassing the regenerative cartridge.

Partially, these shortcomings were eliminated in an insulating breathing apparatus using chemically bound oxygen (RF Patent No. 2335314, IPC АВВ 7/08, 2008), adopted as a prototype and containing a regenerative cartridge with a regenerative product, a breathing bag with an overpressure valve, a front part and a starting device consisting of a starting briquette and an ampoule with an initiating fluid, the ampoule with the initiating fluid provided with a fitting that is hermetically connected to the breathing bag via a skirt of elastic material, the ampoule and the pu kovoy preform enclosed in a perforated body mounted on the cover with a gap regenerative cartridge. The ampoule and the starting briquette are eccentrically mounted in the perforated casing, and an eccentric washer is installed between the ampoule and the starting briquette.

The disadvantages of the known device are as follows:

- the cavity of the housing of the starting briquette with its perforation communicates with the cavity of the breathing bag. Since the absorption of carbon dioxide by the regenerative product depends on temperature, the regenerative cartridge in winter will work worse, since there is no heating of the regenerative product with the heat of the starting briquette;

The objective of the utility model is to improve the operational characteristics of an insulating breathing apparatus.

The technical result when using the utility model is to increase the reliability of launching the device into operation.

The technical result is achieved in that in an insulating breathing apparatus with chemically bound oxygen containing a regenerative cartridge with a regenerative product, a breathing bag with an overpressure valve, a face connected to a regenerative cartridge with a corrugated tube, and a starting device consisting of a starting briquette and an ampoule with initiating fluid, according to a utility model, the breathing bag is made of a polyimide-fluoroplastic film of the PMF type and enclosed in a case of heat-resistant high-strength t cani, the breathing bag is fixed on a regenerative cartridge, additionally connected by force tapes to the front part.

The breathing bag can be connected to the cover using Velcro textile fasteners.

For installation in a breathing bag, the apparatus, the body of the regenerative cartridge and the starting device can be equipped with a threaded connector and concentric corrugation of the surfaces adjacent to the breathing bag.

On the opposite walls of the breathing bag can be installed two overpressure valves, interconnected by a flexible connection in the form of a cord.

The front part of the insulating breathing apparatus can be equipped with a voice membrane.

The regenerative product can be placed in the cartridge case in the form of a package of plates with intersecting spacing protrusions, the side surface of the regenerative product package in the cartridge is enclosed in a shell of non-combustible material.

The insulating apparatus can be placed in a sealed enclosure made of metallized dacron film, on the outer seam of which an incision is made.

Between the distinguishing features and the achieved technical result, there is the following causal relationship.

The implementation of the respiratory bag of polyimide-fluoroplastic films of the PMF type and its enclosure in a shell made of heat-resistant high-strength fabric, fixing the respiratory bag on a regenerative cartridge, connecting it with additional power tapes to the front part provides:

- reducing the mass of the insulating breathing apparatus, since the film is able to withstand large loads due to mechanical strength;

- ensuring the safety of use especially when fighting a fire on board a vehicle, since the polyimide film is able to withstand the effects of an open flame without violating the tightness and release of toxic substances;

- the use of a high-strength and heat-resistant fabric as a cover allows you to protect not only the breathing bag from mechanical damage, but also the user's body;

- the possibility of using industrial technologies in mass production;

Polyimide-fluoroplastic films ПМФ-С 351, ПМФ-С 351ТП, ПМФ-С 352 ТУ 6-19-226-89 are coated on one side (ПМФ-С 351, ПМФ-С 351ТП) or on both sides (ПМФ-С 352) fluoroplast obtained from a suspension of fluoroplast-4MD. The fluoroplastic coating improves the sliding properties, the flexibility of the films, allows the fluoroplastic layers to be welded together (grade PMF-S 351 TP), which allows to increase the tightness, increase the chemical resistance and hydrostability of the product. PMFs are most in demand in the production of various devices operating for a long time in the temperature range from -60 ° C to + 220 ° C.

Note: The PMF film with a single-sided coating is designated - PMF-351, with a double-sided coating - PMF-352.

The connection of the breathing bag with the shell by means of textile fasteners “Velcro” provides fixation of the shell relative to the breathing bag, which increases the convenience of working in the apparatus.

The supply of threaded connectors and concentric corrugations of the surfaces adjacent to the breathing bag for installation in the breathing bag of the apparatus of the housing of the regenerative cartridge and the starting device ensures the tightness of their connection, especially with the use of non-gas-tight sealants.

The installation of two overpressure valves on opposite walls of the breathing bag, interconnected by a flexible connection in the form of a cord, excludes barotrauma of the user's lungs when it collides with an obstacle blocking one of the valves.

The front part of the insulating breathing apparatus is equipped with a voice membrane provides ease of use of the device.

The placement of the regenerative product in the cartridge case in the form of a package of plates with spacing projections intersecting relative to each other, the inclusion of a side surface of the package of regenerative product in the cartridge from non-combustible material in the cartridge ensures the efficient operation of the regenerative product, makes breathing more comfortable by reducing drag and simplifies cartridge assembly.

The placement of the insulating apparatus in a sealed shell made of metallized dacron film, on the outer seam of which an incision is made, ensures long-term storage of the apparatus due to the gas impermeability of the foil and ease of removal of the apparatus from the packaging for its use.

According to the information available to the applicant, the set of essential features of the claimed utility model is not known from the prior art, which allows us to conclude that the claimed object meets the criterion of "novelty."

The set of essential features characterizing the essence of the utility model can be repeatedly used in the production of various modifications of insulating breathing apparatus with different protective actions to obtain a technical result, which consists in increasing efficiency and reliability, which allows us to conclude that the claimed object meets the criterion of "industrial applicability" .

The essence of the claimed utility model is illustrated by an example of a specific implementation, where

in FIG. 1 is a front view of an insulating breathing apparatus;

in FIG. 2 is the same as in FIG. 1, side view;

in FIG. 3 - regenerative cartridge in a breathing bag, front view;

in FIG. 4 is the same as in FIG. 3, top view;

in FIG. 5 is a longitudinal section of a breathing bag without a case with one overpressure valve;

in FIG. 6 is the same as in FIG. 5, with two overpressure valves;

in FIG. 7 shows a starting device in section;

in FIG. 8 - plate regenerative product;

in FIG. 9 is the same as in FIG. 8 is a side view;

in FIG. 10 is a view of a plate of a regenerative product (rotated);

in FIG. 11 is a front view of a package of plates without a shell;

in FIG. 12 - insulating apparatus in a sealed enclosure.

The list of items indicated in the drawings:

1. regenerative cartridge;

2. regenerative product;

3. filter cooler;

4. starting device;

5. launcher housing;

6. starting briquette;

7. ampoule with initiating liquid;

8. breathing bag;

9. overpressure valve;

10. front part;

11. corrugated tube;

12. case;

13. power tape;

14. textile fastener "flypaper";

15. threaded connector;

16. concentric corrugation;

17. cord;

18. voice membrane;

19. a package of regenerative plates;

20. distance protrusion;

21. a shell of non-combustible material;

22. sealed shell;

23. external seam;

24. an incision;

25. half mask;

26. fasteners on the user's head.

A chemically bound oxygen insulating breathing apparatus comprising a regenerative cartridge 1, in which a regenerative product 2 is placed, a filter cooler 3 and a starting device 4 consisting of a housing 5 in which a starting briquette 6 and an ampoule with an initiating liquid 7 are installed. Regenerative cartridge 1 placed in a breathing bag 8, equipped with an overpressure valve 9. The front part 10 is connected to a regenerative cartridge 1 by a corrugated tube 11. The breathing bag 8 is made of a polyimide-fluoroplastic film of the PMF type and s It is included in a cover 12 from heat-resistant high-strength fabric like "Nomeks". The breathing bag 8 is attached to the regenerative cartridge 1 by means of threaded connectors 15, the regenerative cartridge 1 is connected to the front part 10 by means of power tapes 13, which are fixed in turn in the threaded connection 15. The breathing bag 8 is connected to the cover 12 by means of velcro textile fasteners 14. For installation in the breathing bag of the regenerative cartridge 1 and the starting device 4, the latter are equipped with a threaded connector 15 with concentric corrugation of the surfaces 16 adjacent to the breathing bag 8. On the opposite walls x the breathing bag can be installed two overpressure valves 9, interconnected by a flexible connection in the form of a cord 17. The front part is equipped with a voice membrane 18. The regenerative product 2 is placed in the housing of the cartridge 1 in the form of a package of 19 plates with intersecting distance protrusions 20 , the side surface of the regenerative product package in the cartridge is enclosed in a shell of non-combustible material 21, for example, of glass paper type BMDk. The insulating apparatus is placed in an airtight shell 22 of metallized mylar film, on the outer seam 23 of which cuts are made 24. The front part 10 is equipped with a half mask 25 and means for mounting on the user's head 26 in the form of elastic bands.

The proposed device operates as follows.

In the event of an emergency at the facility, when the air is unsuitable for breathing, the hermetic shell 22 is torn apart by a notch 24 on the outer seam 23 and an insulating breathing apparatus is removed from it. To enable the user in the device, the starting device 4 is turned on by pressing on the upper part of the ampoule 7 with the initiating liquid. In this case, the initiating liquid enters the starting briquette 6 placed in the housing 5, initiating its decomposition, in which oxygen is released, which enters the regenerative cartridge 1 through the filter-cooler 3, from where it enters the breathing bag 8.

The elastic neck seal of the front part 10, made of latex or soft vulcanized rubber, is stretched by hands to a position that ensures it is worn on the user's head. When putting it on by the user, the position of the half mask 25 and the associated fastening means 26 on the user's head is established, in which the half mask 25 hermetically closes the nose and mouth, which is determined by the absence of air movement during inhalation and exhalation in places where it fits. Tight clip half mask 25 to the face of the user is provided by moving the front part 10 up or down to its maximum tension. When putting on the front part 10, its internal configuration depending on the shape of the user's head (size, height and shape of the hair, the presence of glasses or hearing aids) can change due to the elastic properties of the fastening devices 26. When exhaling, air from the user's lungs enters the half mask 25, from which through the corrugated tube 11 and through the regenerative cartridge 1 enters the cavity of the respiratory bag 8, filling it. Passing through regenerative cartridge 1, the air is cleaned of water vapor and carbon dioxide, instead of which regenerative product 2, enclosed in regenerative cartridge 1, emits gaseous oxygen. With a subsequent inhalation, the air from the breathing bag 8 again passes through the cartridge 1, in which the air is purged from carbon dioxide and is fed into the half mask 25 through the corrugated tube 11, from where it again enters the user's lungs from the mask space, ensuring that his breath is free of dioxide carbon air. Since when breathing, the amount of oxygen released exceeds the amount of absorbed carbon dioxide in volume (due to absorption of water vapor by the regenerative product), the volume of the gas mixture in the breathing bag 8 is continuously increasing. To prevent the destruction of the breathing bag 8, the excess gas mixture is automatically discharged into the environment through the overpressure valve 9. When tilting and changing the spatial position of the user, the separation of the half mask 25 from the user's face is eliminated by attaching the regenerative cartridge 1 together with the breathing bag 8 on the front part 10 s using the tension of the power tapes 13. The displacement of the cover 12 relative to the breathing bag 8 is prevented by textile Velcro fasteners 14. When assembling regenerative patro and 1 package of regenerative plates 19 is placed in a shell of non-combustible material (MDF type glass paper) 21 which covers only the side surfaces of the package 19, leaving the upper and lower ends open, which reduces breathing resistance, the presence of distance protrusions on the plates 20 contributes to this. For convenience the user, the front part 10 is equipped with a voice membrane 18. The execution of the threaded connectors 15 with concentric corrugations 16 provides a tight connection of the regenerative cartridge 1 and the starting device 4 with a breathing bag 8.

The application of the proposed utility model “Isolating breathing apparatus” allows to increase the reliability of work, durability, expand the functionality, increase the safety of work in emergency situations.

Claims (7)

1. An insulating breathing apparatus based on chemically bound oxygen, containing a regenerative cartridge containing a regenerative product, a cooler filter and a starting device consisting of a housing in which a starting briquette and ampoule with an initiating liquid, a breathing bag with an overpressure valve, the front part, are installed, connected to a regenerative cartridge by a corrugated tube, characterized in that the breathing bag is made of a polyimide-fluoroplastic film of the PMF type and enclosed in a case made of heat-resistant high tissue, the breathing bag is mounted on a regenerative cartridge, additionally connected with power tapes to the front part. 2. The insulating breathing apparatus according to claim 1, characterized in that the breathing bag is connected to the cover by means of Velcro textile fasteners. 3. The insulating breathing apparatus according to claim 1, characterized in that for installation in the breathing bag of the regenerative cartridge and the starting device, the latter are equipped with a threaded connector with concentric corrugation of the surfaces adjacent to the breathing bag. 4. The insulating breathing apparatus according to claim 1, characterized in that on the opposite walls of the breathing bag there are two overpressure valves connected by a flexible connection in the form of a cord. 5. The isolating breathing apparatus according to claim 1, characterized in that the front part is provided with a voice membrane. 6. The insulating breathing apparatus according to claim 1, characterized in that the regenerative product is placed in the cartridge case in the form of a package of plates with intersecting spacing protrusions, the side surface of the regenerative product package in the cartridge is enclosed in a shell of non-combustible material. 7. The insulating breathing apparatus according to claim 1, characterized in that the insulating apparatus is placed in an airtight shell made of metallized lavsan film, on the outer seam of which cuts are made.

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