CN2590603Y

CN2590603Y - Compression oxygen type fire self-saving escape device

Info

Publication number: CN2590603Y
Application number: CN 02281667
Authority: CN
Inventors: 寿鑫泉; 秦福建
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-17
Filing date: 2002-10-17
Publication date: 2003-12-10
Anticipated expiration: 2012-10-17

Abstract

The utility model relates to a compression oxygen type fire self-saving escape device, which belongs to the technical field of personnel escape through self saving. The utility model is composed of a compression oxygen type self-saving respirator and a protective suit, wherein, the respirator comprises a head cover, a viewing mirror, a cover for a mouth and a nose, a respiration flexible tube, an oxygen supply container, an air bag, and a voltage limiting exhaust valve which is arranged on the air bag. The oxygen supply container is connected with an annular spiral tube group and an inlet end of a high voltage valve group. The high voltage valve group is formed by sheathing with an interface of the upper end of the air bag through an oxygen supply flexible tube, and a carbon dioxide absorbent medicine tank is placed in a cavity of an inner outline of the annular spiral tube group. An inlet port of the annular spiral tube group is sheathed with the lower end of the respiration flexible tube, and an outlet port of the annular spiral tube group is sheathed with an interface on the upper end of the air bag. The cover for a mouth and a nose, the respiration flexible tube, the carbon dioxide absorbent medicine tank, and the air bag are closed and communicated, and an air storing group, a joint, the high voltage valve group, the oxygen supply flexible tube, and the air bag are closed and communicated. A grate is arranged in the tank, and carbon dioxide absorbent is filled in the grate. The escape device adopts vacuum packing by means of a transparent plastic bag, with the advantages of quick oxygen supply, low oxygen inhaling temperature, and compact structure.

Description

Compressed oxygen type fire self-saving escape device

Technical Field

The utility model relates to a compressed oxygen formula conflagration ware of fleing that saves oneself is a fire control safety apparatus, belongs to personnel's technical field of fleing of saving oneself. The self-rescue escape device is suitable for self-rescue escape in the case of fire disasters such as hotels, song halls, underground shopping malls, furniture cities, closed machine rooms, high-rise buildings and the like and in the case of leakage accidents of chemical devices.

Background

The oxygen generating tablet in the existing chemical oxygen generating type fire self-rescue escape device has extremely high requirement on the allowable water content in air during canning, and is generally not easy to reach, so that the product fails or partially fails within the effective storage period and cannot be checked, and the actual use is influenced; the existing mine compressed oxygen type escape device is very inconvenient because a nose clamp and a mouth bite tool are needed during use, language contact cannot be carried out, and the head, the face and the body of a person have no protective cover, so that the person who escapes is easy to be burnt, the medicine tank has poor heat dissipation, the oxygen inhalation temperature is higher, and the throat of the person who escapes has a burning sensation.

Disclosure of Invention

The utility model provides a to above-mentioned technical problem provide a all kinds of head sizes general, overlook the field of vision big, replace high-pressure gas cylinder, medicine jar with high-pressure gas storage nest of tubes and place in nest of tubes inner cavity, flee person's respiratory and external isolated compressed oxygen formula conflagration self-rescue ware of fleing.

The technical measures for solving are as follows: the utility model discloses constitute by compressed oxygen formula self-rescue respirator and fire-retardant solar radiation protection suit, the respirator includes that hood its outside both sides are equipped with the elastic cord that tightens up the hood, hood the place ahead middle part is equipped with the opening and cup joints mutually with the anterior round hole of oronasal mask, links firmly mutually through fixed the knot, hood the place ahead upper portion is equipped with sight glass, oronasal mask, breathing hose, oxygen suppliment container, air pocket and the voltage limiting discharge valve, characterized by on them: the oxygen supply container is in threaded connection with the inlet end of the high-pressure valve group through a joint of the annular spiral tube group, the high-pressure valve group comprises a pressure reducing valve, a proportional valve, a manual supply valve and a pressure indicator, the oxygen supply hose is fixedly connected with a joint of the air bag in a sleeved mode, a carbon dioxide absorbent medicine tank is placed in an inner cavity of the annular spiral tube group,an air inlet of the medicine tank is fixedly connected with the lower end of the breathing hose in a sleeved mode, and an air outlet of the medicine tank is fixedly connected with an upper end joint of the air bag in a; the carbon dioxide absorbent medicine tank comprises a tank body, an air outlet and the tank body, wherein the tank body is formed by punching, two ends of the tank body are respectively provided with a grate on which sieve holes are uniformly distributed, the carbon dioxide absorbent is filled between the two grates, and an end cover of the air inlet is fixedly connected with the tank body; the utility model discloses a sealed vacuum packaging of transparent plastic bag.

The utility model has the advantages that: the oxygen supply is rapid, the discomfort of quantitative oxygen supply of an escaper can be relieved by a manual supply device, the oxygen suction temperature is low, the structure is compact and the volume is small, the size and the universality of the head cover are good, the overlooking visual field of the hump-shaped sight glass is large, the downstairs self-rescue escape is facilitated, and the sealed vacuum packaging of the transparent plastic bag is beneficial to the performance inspection of the escaper in the effective storage period so as to ensure the safety.

Drawings

Fig. 1 is the utility model discloses a respirator structure schematic diagram, and fig. 2 is the utility model discloses a respirator gas circuit picture of saving oneself, and fig. 3 is the utility model discloses a protective clothing schematic diagram, and fig. 4 is the utility model discloses a carbon dioxide absorbent medicinal cupping structure schematic diagram.

Detailed Description

The structure and the embodiment of the present invention are described as follows with reference to the attached drawings: the respirator comprises a head cover 1, elastic bands 4 for tightening the head cover are arranged on two sides of the outer surface of the head cover, an opening is arranged in the middle of the front of the head cover and is sleeved with a round hole in the front of an oronasal mask, the head cover is fixedly connected with the round hole through a commercially available fixing buckle 15, a sight glass 2, the oronasal mask 3, a breathing hose 5, an oxygen supply container, an air bag 7 and a pressure limiting exhaust valve 8 arranged on the air bag are arranged on the upper part of the front of the head cover, the oxygen supply container is an annular spiral pipe group 6 (namely an air storage pipe group) and is in threaded connection with the inlet end of a high-pressure valve group through an air storage pipe joint 12, the high-pressure valve group 9 comprises a pressure reducing valve, a proportional valve, a manual supply valve 10 and a pressure indicator 11, the annular spiral pipe group is sleeved with a port at the upper end of the air bag 7 through an oxygen supply hose 13 and, the air outlet of the air bag is fixedly connected with the interface at the upper end of the air bag 7 after being sleeved; the carbon dioxide absorbent medicine tank comprises a tank body 16-1, an air outlet and the tank body are formed by punching, two ends of the tank body are respectively provided with a grate 16-3 on which sieve holes are uniformly distributed, a carbon dioxide absorbent 16-4 is filled between the two grates, an air inlet end cover 16-2 is fixedly connected with the tank body 16-1, and an oral-nasal mask 3, a breathing hose 5, the carbon dioxide absorbent medicine tank 16 and an air bag 7 are in closed communication to form a breathing air system; the gas storage tube group 6, the gas storage tube joint 12, the pressure indicator 11, the high-pressurevalve group 9, the manual aeration valve 10, the oxygen supply hose 13 and the gas bag 7 are in closed communication to form an oxygen supply system; the escape device is sealed and vacuum-packed by a transparent plastic bag.

The carbon dioxide absorbent is columnar Ca (OH)₂The chemical reaction formula is as follows:

the gas storage tube group 6 stores high-pressure oxygen, and when the pressure is 20Mpa, the pressure of the oxygen in the gas bag 7 is approximately equal to one atmosphere.

The high-pressure valve set and the air bag are commercially available products.

The utility model discloses the working process: the escaper wears the protective clothing, the front chest and two sleeves of the escaper are provided with luminous or reflective identification strips 18, then wears the head cover 1, opens the high-pressure valve group switch 17, the high-pressure oxygen in the air storage tube group 6 is decompressed through the joint 12 and the high-pressure valve group 9, and continuously flows into the air bag 7 through the manual supply valve 10 at the quantitative oxygen supply amount of 1.2 +/-0.2 liter/minute for the escaper to consume oxygenThe gas exhaled by the escaper enters the air bag 7 from the gas outlet after absorbing the carbon dioxide gas through the breathing hose 5 and the gas inlet 16-2 of the medicine tank 16 and the medicine 16-4; when inhaling, the oxygen and CO in the air bag 7 are mixed₂The mixed gas absorbs CO through the medicine tank 16₂Air is inhaled into the lung through the breathing hose 5 and the mouth-nose mask 3 to complete one breathing cycle;

when the mixed gas in the air bag 7 is excessive, the pressure-limiting exhaust valve 8 is automatically opened to discharge some gas;

if the person with the escape has too large amount of exercise and feels difficulty in inhaling, the manual supply valve 10 can be pressed for 2-3 seconds to enable oxygen to rapidly enter the air bag 7 so as to enable the person to breathe smoothly;

the oxygen supply time may be set to 20 minutes, 40 minutes or 60 minutes, as required.

Actually measuring: when the rated oxygen supply time is 20 minutes, the oxygen concentration in the air bag is more than or equal to 21 percent, and CO₂The concentration is less than or equal to 3 percent, the inspiration temperature is less than or equal to 50 ℃, and the respiratory resistance is less than or equal to 784 Pa.

Claims

1. A compressed oxygen type fire self-rescue escape device consists of a compressed oxygen type self-rescue respirator and a flame-retardant and heat radiation prevention protective garment, wherein the respirator comprises a head cover, a sight glass, an oronasal mask, a breathing hose, an oxygen supply container, an air bag and a pressure limiting exhaust valve arranged on the air bag; the air storage tube group, the air storage tube joint, the pressure indicator, the high-pressure valve group, the manual air supply valve, the oxygen supply hose and the air bag are in closed communication.

2. A fire self-rescue escape device as claimed in claim 1, wherein the carbon dioxide absorbent canister comprises a canister body, an air outlet, the air outlet is formed by punching and molding the canister body, two grates with sieve holes uniformly distributed thereon are respectively arranged at two ends in the canister body, the carbon dioxide absorbent is filled between the two grates, and an air inlet end cover is fixedly connected with the canister body.

3. A fire self-rescue escape device as claimed in claim 1 or 2, wherein the escape device is sealed and vacuum-packed by a transparent plastic bag.