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Self-feeding channel-opened/closed positive pressure air respirator

A respirator, self-contained technology, applied in the industry, can solve the problems of reducing heat, not seeing the target, a lot of heat, etc., to achieve the effect of reducing fog, reducing temperature, and large reserves

Active Publication Date: 2015-09-02
深圳市中长成科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the existing closed-circuit positive pressure oxygen respirator cannot fully achieve the working time of four hours.
[0007] Closed-circuit positive pressure oxygen respirator has several major disadvantages: 1. The gas source is pure oxygen
2. It is difficult to obtain air source
This process of transferring irrigation and pressurization requires the careful operation of professionals, which is more dangerous than air pressurization
3. The full-face mask is foggy, and you can't even see the target in front of you.
Due to the limitation of the structure of the existing positive pressure oxygen respirator, the problem of large fog in the full face mask is difficult to solve
4. The structure is more complicated, and the application and maintenance are more troublesome
Therefore, sometimes due to imperfect cooling, firefighters feel the temperature of the inhaled gas is higher, and the human respiratory system will feel uncomfortable
7. If the exhaust gas containing carbon dioxide gas exhaled by the human body is not controlled, it will all enter the heat dissipation cleaning tank and react with chemical agents, which will generate a lot of heat and increase the burden on the cooling part
The carbon dioxide exhaust gas exhaled by the human body, after the reaction, all enters the gas temporary storage compartment. When the gas temporary storage compartment has too much storage, the gas is automatically discharged, resulting in waste
At the same time, because it is mixed with pure oxygen and discharged, there is a great safety hazard in the fire scene
[0008] Some positive pressure oxygen respirators also have several disadvantages: 1. Since the human body continuously exhales carbon dioxide-containing waste gas for a long time, the chemical agent that enters the quiet tank and reacts with it generates a large amount of heat. In order to reduce the heat
These schemes have reasonable parts and unreasonable parts, but none of them have been widely adopted

Method used

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  • Self-feeding channel-opened/closed positive pressure air respirator
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  • Self-feeding channel-opened/closed positive pressure air respirator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] see figure 1 , In the first embodiment of the present invention, the self-contained open and closed circuit positive pressure air respirator includes a compressed air bottle 100, a safety valve 101, a pressure reducing valve 102, an air volume distributor 103, a quantitative air supply valve 104, an air suction control Valve 105, three-way valve 106, full-face mask 107, exhalation control valve 108, cleaning tank 109, venturi valve 110, cooling box 111, gas temporary storage compartment 112, shoulder-mounted display meter 115, smart sound box 116, etc.; The full-face mask 107 interacts with the human respiratory system 113. The full-face mask 107 has a first airflow supply end, a second airflow supply end, and an airflow output end; the three-way valve 106 has a first input end, a second input end, and an output end; The compressed air bottle 100 is divided into two paths after passing through the safety valve 101 and the pressure reducing valve 102, one path is supplie...

Embodiment 2

[0095] see figure 2 , the present invention also provides an implementation of a self-contained open and closed circuit positive pressure air respirator, including a compressed air bottle 200, a safety valve 201, a pressure reducing valve 202, an air volume distributor 203, a quantitative air supply valve 204, and an inhalation control valve 205, full-face mask 207, exhalation control valve 208, molecular cleaning tank 209, venturi valve 210, gas temporary storage cabin 211, shoulder hanging display table 215, intelligent sound box 213, etc.; Respiratory interaction, the full-face mask 207 has a first airflow supply end, a second airflow supply end, and an airflow output end; the compressed air bottle 200 is divided into two paths after passing through the safety valve 201 and the pressure reducing valve 202, and the quantitative air supply valve 204 is supplied to one path, Another way supplies the gas volume distributor 203; the whole gas of the quantitative gas supply valv...

Embodiment 3

[0101] see image 3, the present invention also provides a simplified implementation of a self-contained open and closed circuit positive pressure air respirator, including a compressed air bottle 300, a safety valve 301, a pressure reducing valve 302, an air volume distributor 303, a quantitative air supply valve 304, an inhalation Control valve 305, gas temporary storage compartment 306, full-face mask 307, exhaust valve 308, shoulder-mounted display 311, smart voice 312, etc.; full-face mask 307 interacts with human respiratory system 309, and full-face mask 307 has a first airflow supply end, the second airflow supply end and the airflow output end; the compressed air bottle 300 is divided into two paths after passing through the safety valve 301 and the pressure reducing valve 302, one path is supplied to the quantitative air supply valve 304, and the other path is supplied to the air volume distributor 303; the quantitative air supply The valve 304 is connected to the fi...

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PUM

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Abstract

The invention discloses a self-feeding channel-opened / closed positive pressure air respirator comprising a compressed air bottle, an all-face mask, a safety valve, a pressure-reducing valve, an air distributor, a ration air supply valve, an inhalation control valve, an exhalation control valve, an exhalation gas-guide tube, an inhalation gas-guide tube, an external connection rapid port, a clean pot, a Venturi tube valve, a cooling box, a gas temporary storage box, a purge valve, a triple valve, an air gauge, an alarm, a shoulder-hanged display gauge and an intelligent sound box. A fireman can safely use the self-feeding channel-opened / closed positive pressure air respirator for a long time. According to the self-feeding channel-opened / closed positive pressure air respirator, compressed air is used as a main air source, the service time of the limit compressed air can be prolonged in practical applications through cooperation with a carbon dioxide purifying and conversion device and a cooling system device, wherein the cooling system device is used for controlling the direction of air flow and branching the air flow. When a fireman rescue people in the scene of a fire, he can use the self-feeding channel-opened / closed positive pressure air respirator to protect himself in a danger, poisonous, high temperature and anoxic environment for enough time to rescue people or do other special tasks.

Description

technical field [0001] The present invention is applied in special work industries such as firefighting, mine rescue, aerospace, chemical industry, submarine, diving, etc., as well as in the fields of military anti-terrorism, nuclear, biological and chemical warfare, etc., and especially relates to a self-contained open and closed circuit positive pressure air respirator, which solves the problem of firefighters and When other special workers go to work or rescue in dangerous and poisonous disaster sites, high-temperature fire sites, anaerobic and hypoxic environments, they can provide longer working hours than existing positive pressure air respirators and supply safe gas for human breathing need. Compared with the positive pressure oxygen respirator in the prior art, it can provide a comfortable and safe gas for the human body to breathe in a high-temperature fire scene or a more complicated environment. In special environments such as disaster sites, firefighters have more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B7/02A62B9/00
CPCA62B7/02A62B9/00
Inventor 陈苏
Owner 深圳市中长成科技有限公司
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