CN114404831A

CN114404831A - Emergency breathing air switching system for life cabin

Info

Publication number: CN114404831A
Application number: CN202210191450.8A
Authority: CN
Inventors: 高青; 柳耀健
Original assignee: Ankangtai Yantai Life Sciences Research Institute Co ltd
Current assignee: Ankangtai Yantai Life Sciences Research Institute Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-04-29
Also published as: CN116236716A; WO2023159727A1

Abstract

The invention discloses an emergency breathing air switching system for a life cabin, which belongs to the field of medical pressure containers and comprises the life cabin, an air delivery mask, a treatment breathing air source, an emergency breathing air source, a breathing air switching device, a fire detector and a fire extinguishing device; the supply of the treatment breathing gas source and the emergency breathing gas source is converted by the breathing gas switching device, so that the oxygen content in the life cabin is reduced; the fire extinguishing device comprises a fire extinguishing cavity communicated with the life cabin; the fire extinguishing device is used for extinguishing fire in the life cabin in a suction circulation mode. The invention can effectively improve the survival ability of personnel in the life cabin when a fire disaster occurs, and reduce the risk of respiratory tract burn and suffocation of the personnel in the life cabin.

Description

Emergency breathing air switching system for life cabin

Technical Field

The invention relates to the field of medical pressure containers, in particular to an emergency breathing air switching system for a life cabin.

Background

The life cabin adopts air as pressure medium to pressurize in the cabin to utilize the oxygen supply device to supply personnel's in the cabin breathing oxygen, there is the condition of oxygen leakage in this in-process inevitably, wherein the biggest potential safety hazard is the conflagration, therefore life cabin all is furnished with fire control extinguishing device, in case the conflagration breaks out, water sprinkler system can spray water to the cabin in, reaches the purpose of putting out a fire.

The inventor finds in daily practice that when a fire actually occurs in a life cabin, people in the cabin continuously supply oxygen in the fire due to the breathing mask, the combustion force of the position with high oxygen content is stronger, the harm to the people in the cabin is mainly respiratory tract burn and suffocation but not burn, and the water spraying system in the life cabin plays a limited role when the fire actually occurs in the cabin.

In view of the above, it is necessary to provide a new technical solution to solve the above problems.

Disclosure of Invention

For solving above-mentioned technical problem, the application provides an air switched systems is breathed in emergency of life cabin can promote life cabin emergence conflagration its inside personnel's viability, reduces the risk that personnel's respiratory track burns and suffocates in the life cabin.

A life bay emergency breathing air switching system, comprising: the fire extinguishing device comprises a life cabin, a gas transmission mask, a treatment breathing gas source, an emergency breathing gas source, a breathing gas switching device, a fire detector and a fire extinguishing device; the gas delivery mask is arranged in the life cabin; the treatment breathing gas source is arranged outside the life cabin, is communicated with the gas transmission mask through a treatment gas pipeline and is used for supplying oxygen during oxygen treatment; the emergency breathing gas source is arranged outside the life cabin, is communicated with the gas transmission mask through an emergency gas pipeline and is used for supplying breathing gas to personnel in the cabin when a fire disaster happens; the breathing gas switching device comprises a therapeutic breathing gas valve for controlling the on-off of a therapeutic gas pipeline and an emergency breathing gas valve for controlling the on-off of an emergency gas pipeline; the fire extinguishing device comprises a fire extinguishing chamber; the fire extinguishing device is configured to suck the life cabin and extinguish fire in the fire extinguishing chamber when a fire breaks out in the life cabin.

Preferably, the emergency breathing gas source further comprises an air compression device, a backing air filter, an air storage container, an air post-processing device and an air pressure reducer which are sequentially communicated through an emergency gas pipeline.

Preferably, the fire extinguishing device comprises a fire extinguishing cavity, a gas circulating device and a fire extinguishing spraying device; the gas circulating device is communicated with the fire extinguishing cavity; the fire extinguishing spray device comprises a plurality of fire extinguishing spray pipes with fire extinguishing nozzles; the fire extinguishing spray pipe is arranged inside the fire extinguishing cavity.

Preferably, the fire extinguishing chamber is arranged outside the life cabin; the inlet end of the fire extinguishing cavity is arranged at the top of the life cabin and is communicated with the interior of the life cabin; the outlet end of the fire extinguishing cavity is arranged on the side surface of the life cabin and communicated with the interior of the life cabin.

Preferably, the fire extinguishing nozzle is disposed at an upper portion of the fire extinguishing spray pipe and is communicated with an inside of the fire extinguishing spray pipe.

Compared with the prior art, the application has at least the following beneficial effects:

the invention can rapidly switch oxygen in the gas transmission mask of personnel in the life cabin into air when a fire disaster happens, reduce the oxygen concentration near the respiratory tract of the personnel in the life cabin, effectively reduce the combustion degree, improve the humidity in the life cabin and reduce the temperature in the life cabin by means of the suction circulation of the fire extinguishing device to the gas in the life cabin, effectively improve the survival ability of the personnel in the life cabin when the fire disaster happens, and reduce the risk of burning and suffocation of the respiratory tract of the personnel in the life cabin.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic view of the overall connection of the present invention;

FIG. 2 is a schematic view of the connection structure of the life cabin and the fire extinguishing apparatus of the present invention;

fig. 3 is a schematic view of the structure at the position a-a in fig. 2.

Wherein the figures include the following reference numerals:

1. the system comprises a life cabin, 2, an air compression device, 3, an air aftercooler, 4, a preceding stage air filter, 5, an air storage container, 6, an air aftertreatment device, 7, an air pressure reducer, 8, an emergency breathing gas valve, 9, an emergency gas pipeline, 10, a treatment breathing gas valve, 11, a treatment gas pipeline, 12, a treatment breathing gas source, 13, a fire detector, 14, a fire extinguishing cavity, 15, an isolation device, 16, an adsorption device, 17, a fire extinguishing spray device, 18, a gas circulation device, 19, a liquid storage tank, 20 and an isolation network;

171. a liquid supply main pipe 172, a liquid supply connecting pipe 173, fire extinguishing spray pipes 174 and fire extinguishing nozzles.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in figure 1, the life cabin emergency breathing air switching system comprises a life cabin 1, a gas delivery mask, a treatment breathing gas source 12, an emergency breathing gas source, a breathing gas switching device, a fire detector 13 and a fire extinguishing device. The fire detector 13 is preferably a smoke-sensitive fire detector. The respiratory gas switching device comprises a therapeutic respiratory gas valve 10 for controlling the on-off of a therapeutic gas pipeline 11 and an emergency respiratory gas valve 8 for controlling the on-off of an emergency gas pipeline 9. The gas delivery mask is arranged in the life cabin 1 and is used for being worn by a patient when in use, so that respiratory gas for respiratory therapy or emergency respiratory gas can be conveniently breathed. The treatment breathing gas source 12 is arranged outside the life cabin 1, is communicated with the gas transmission mask through a treatment gas pipeline 9, and is used for oxygen supply during oxygen treatment. The emergency breathing gas source is arranged outside the life cabin 1, is communicated with the gas transmission mask through an emergency gas pipeline 9 and is used for supplying breathing gas to personnel in the cabin when a fire disaster happens. The emergency breathing gas source comprises an air compression device 2, a backing air filter 4, an air storage container 5, an air post-processing device 6 and an air pressure reducer 7 which are sequentially communicated through an emergency gas pipeline 9.

Preferably, an air aftercooler 3 is also provided between the air compressor installation 2 and the front air filter 4 for cooling the compressed air produced by the air compressor installation 2.

As shown in fig. 2, the fire extinguishing apparatus is communicated with the inside of the life hatch 1, and includes a fire extinguishing chamber 15 configured to suck the life hatch 1 and extinguish a fire in the fire extinguishing chamber 15 when a fire breaks out in the life hatch 1.

In particular, the fire extinguishing chamber 15 is arranged outside the life compartment 1. The entrance end of the fire extinguishing cavity 15 is arranged at the top of the life cabin 1 and communicated with the interior of the life cabin 1, and the exit end of the fire extinguishing cavity is arranged at the side of the life cabin 1 and also communicated with the interior of the life cabin 1. The fire extinguishing apparatus also includes a gas circulation device 18 and a fire extinguishing sprinkler 17. The gas circulating device 18 is communicated with the fire extinguishing chamber 14 through a pipeline and provides power for the gas and the flame in the life cabin 1 to enter the fire extinguishing chamber 15. The gas circulation device 18 is preferably a commercially available high pressure fan. The fire extinguishing spraying device 17 can spray fire extinguishing liquid in the fire extinguishing cavity 15 to extinguish fire in the fire extinguishing cavity 15, and meanwhile, the liquid sprayed out by the fire extinguishing spraying device 17 can be sprayed into the life cabin 1 to extinguish fire in the life cabin 1. Meanwhile, under the suction action of the gas circulating device 18, gas in the life cabin 1 can circularly enter the fire extinguishing cavity 15, and the temperature of the life cabin 1 is effectively reduced by means of the evaporation and heat absorption action of liquid sprayed by the fire extinguishing spraying device 17. Separation net 20 sets up puts out a fire chamber 15 exit end in life cabin 1, can break up by the liquid of putting out a fire chamber 15 spun, improves the dispersion degree of liquid in life cabin 1, further improves and puts out a fire and cooling effect. In addition, still be provided with reservoir 19 on the life cabin 1 bottom surface of chamber 15 exit end of putting out a fire, can gasify under the effect of chamber 15 export gas of putting out a fire, further provide more sufficient liquid steam for life cabin 1.

As shown in fig. 3, the fire sprinkler 17 includes a plurality of fire sprinkler pipes 173 having fire extinguishing nozzles 174, and a liquid supply connection pipe 172 and a liquid supply header pipe 171. The fire sprinkler 173 communicates with the liquid supply header 171 through a liquid supply connection pipe 172. The fire extinguishing spray pipe 173 is arranged inside the fire extinguishing chamber 14, the fire extinguishing nozzles 174 are arranged on the upper portion of the fire extinguishing spray pipe 173 and communicated with the inside of the fire extinguishing spray pipe 173, the fire extinguishing nozzles 174 can upwards spray fire extinguishing liquid, the spraying distance of the fire extinguishing liquid is increased, and the temperature in the fire extinguishing chamber 14 can be further reduced.

In normal use, therapeutic respiratory gas valve 10 is opened and oxygen from therapeutic respiratory gas source 12 is supplied to the patient via therapeutic gas line 11 to the gas delivery mask. When a fire disaster occurs in the life cabin 1, the fire detector 13 detects the occurrence of the fire disaster and gives an alarm, at the moment, the treatment breathing gas valve 10 is closed, the emergency breathing gas valve 8 is opened, and high-pressure air supplied by an emergency breathing gas source enters the gas transmission mask through the emergency gas pipeline 9 to supply breathing air for a patient. Simultaneously, extinguishing spray device 17 blowout fire extinguishing liquid, open gas circulation device 18, make the gas in the life cabin 1 enter the chamber 14 that goes out a fire and circulate, and at the circulation in-process, with extinguishing spray device 17 blowout fire extinguishing liquid spout put out a fire and cool down in spouting life cabin 1, with this continuous circulation, realize the continuous increase of humidity and the continuous reduction of temperature in the life cabin 1, and then its inside personnel's when effectively promoting the life cabin and taking place the conflagration viability, reduce the risk that personnel's respiratory track burns and suffocates in the life cabin.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An emergency breathing air switching system for a life cabin is characterized by comprising the life cabin, an air delivery mask, a treatment breathing air source, an emergency breathing air source, a breathing air switching device, a fire detector and a fire extinguishing device; the gas delivery mask is arranged in the life cabin; the treatment breathing gas source is arranged outside the life cabin, is communicated with the gas transmission mask through a treatment gas pipeline and is used for supplying oxygen during oxygen treatment; the emergency breathing gas source is arranged outside the life cabin, is communicated with the gas transmission mask through an emergency gas pipeline and is used for supplying breathing gas to personnel in the cabin when a fire disaster happens; the breathing gas switching device comprises a therapeutic breathing gas valve for controlling the on-off of a therapeutic gas pipeline and an emergency breathing gas valve for controlling the on-off of an emergency gas pipeline; the fire extinguishing device comprises a fire extinguishing chamber; the fire extinguishing device is configured to suck the life cabin and extinguish fire in the fire extinguishing chamber when a fire breaks out in the life cabin.

2. The life bay emergency breathing air switching system of claim 1, wherein the emergency breathing air source further comprises an air compression device, a backing air filter, an air storage container, an air post-processing device, and an air pressure reducer in sequential communication via an emergency gas line.

3. The life bay emergency breathing air switching system of claim 1, wherein said fire suppression means comprises a fire suppression chamber, a gas circulation means and a fire suppression spray means; the gas circulating device is communicated with the fire extinguishing cavity; the fire extinguishing spray device comprises a plurality of fire extinguishing spray pipes with fire extinguishing nozzles; the fire extinguishing spray pipe is arranged inside the fire extinguishing cavity.

4. The life bay emergency breathing air switching system of claim 3, wherein said fire extinguishing chamber is disposed outside said life bay; the inlet end of the fire extinguishing cavity is arranged at the top of the life cabin and is communicated with the interior of the life cabin; the outlet end of the fire extinguishing cavity is arranged on the side surface of the life cabin and communicated with the interior of the life cabin.

5. The life bay emergency breathing air switching system of claim 3, wherein said fire suppression nozzles are disposed at an upper portion of said fire suppression spray pipes in communication with an interior of said fire suppression spray pipes.