CN201108661Y - Double air bags positive-pressure oxygen respirator - Google Patents

Abstract

The utility model discloses a double-airbag positive-pressure oxygen respirator that comprises an air bottle, a pressure reducer, a breathing hose, a cleaning can and a cooler. The air bottle is connected with air bags and the cooler through the pressure reducer that is connected with the breathing hose; the breathing hose is connected with the cleaning can that is connected with the air bags In the oxygen respirator, a main air bag is added between the breathing hose and the cleaning can; the breathing hose is connected with the main air bag that is connected with the cleaning can. Then the oxygen respirator is provided with an additional air bag on the basis of the original air bag. Thus the oxygen respirator can not only increase the air storage amount, but also greatly can reduce the breathing resistance through the filtration of two air bags, further ensuring the effective use of time, improving the safety index. And the oxygen respirator enhances the efficiency of absorption of carbon dioxide through the cleaning can, improves the quality of the recycled air and achieves the national safety standards on the mines.

Description

Two air bag positive pressure oxygen respirators

One, technical field

This utility model relates to a kind of positive pressure oxygen respirator.

Two, background technology

Positive pressure oxygen respirator is mainly used in mine rescue team member protection to its respiratory apparatus when being engaged in rescue, makes it to avoid the injury of toxic and harmful.What also can be used for departments such as oil, chemical industry, metallurgy, underground engineering was subjected to the professional training personnel, used when being engaged in rescue and relief work in the toxic and harmful environment.Malleation in the malleation oxygen inhalation system device is for the external environment atmospheric pressure.Be meant the whole closed circuit circulatory system of oxygen breathing apparatus when personnel are air-breathing, its intrasystem gas pressure is greater than ambient pressure, thereby strengthened the opening pressure of air bleeding valve, also correspondingly improved unlatching, the closing presure of automatic replenishing valve.The key that determines everything is exactly from the spring force on the air bag.The positive pressure oxygen respirator that uses has much at present, but all has only an air bag, and its obvious weak point is: A, gas-storing capacity deficiency.In relatively poor environment and heavier operation, rescue personnel's respiratory capacity increases, and the deficiency of gas-storing capacity will occur; B, oxygen run off fast.The oxygen of single air bag runs off very fast, and peace and quiet jar of burden is heavy; C, service time, more than half respiratory resistances were big, and user does not feel well.These have all brought inconvenience to user, also have potential safety hazard simultaneously.

Three, summary of the invention

The purpose of this utility model provides a kind of safer, reliable respiratory organ.The technical solution adopted in the utility model is: two air bag positive pressure oxygen respirators comprise gas cylinder, decompressor, breathing hose, peace and quiet jar and cooler, and gas cylinder is connected to air bag and cooler by decompressor, and cooler connects inhaling hose; Exhale hose connection peace and quiet jar, peace and quiet jar is connected with air bag.This utility model adds a main gasbag between expiration flexible pipe and peace and quiet jar, it is hose connection on main gasbag to exhale, and main gasbag connects peace and quiet jar.This utility model is to increase an air bag on the basis of original air bag again, has so not only increased gas-storing capacity but also through the filtration of twice air bag, has reduced respiratory resistance greatly, thereby guaranteed effective storage life, has improved safety index.

The utility model has the advantages that: with respect to the monosaccate respiratory organ: 1 has increased gas-storing capacity, wears respiratory organ acting test and shows that a little higher than selected pressure of expiratory resistance (such as 8mbar) testing crew just expression is breathed uncomfortable.From physiology of respiration because human body be undertaken by pulmonary's musculation air-breathing, so be initiative.And exhale is to rely on diaphragm and thoracic cavity retraction to carry out, and is passivity.When mandatory breathing, exhaling is to keep on one's own initiative equally.In positive pressure oxygen respirator, promptly use very low respiratory capacity, exhaling all becomes initiatively.In expiratory phase, it is not need acting that breathe air flows to face shield.Wear respiratory organ and carry out heavy physical labour again, pulmonary's muscle will inevitably cause temporary fatigue under the breathing pattern like this.Because the air bag gas-storing capacity increased, when running into the big personnel of respiratory capacity, make it be not easy to become negative pressure, it is more comfortable that the people is breathed.2 air bleeding valves on main gasbag can play leading deflated effect; this with general respiratory organ mutually the stronger oxygen in the oxygen cylinder that utilizes of specific energy increase service time; alleviated peace and quiet jar burden, improved the respiratory protection index, made respiratory organ more safe and reliable.The two leading exhaust structures of air bag of this cover of 3 whiles have reduced respiratory resistance, use more comfortable.4 adopt the main gasbag work done, and balloonet stores mist, and the gas of breathing out when air-breathing has strengthened the efficient of peace and quiet jar of absorbing carbon dioxide in batches by peace and quiet jar of peace and quiet carbon dioxide, improves the quality of recycle gas.This is exclusive in the present domestic positive pressure oxygen respirator.Every technical specification of two air bag positive pressure oxygen respirators has reached the standard of country about safety of coal mines

Four, description of drawings

Accompanying drawing is a structural representation of the present utility model.

Five, the specific embodiment

Two air bag positive pressure oxygen respirators mainly comprise by gas cylinder 6, decompressor 9, Pressure gauge 12, proportional valve 19, automatic replenishing valve 11, the manually air supply system formed such as replenish valve 10 and the respiratory system be made up of the peace and quiet jar 5 of face shield 1 (or mouthful tool nose clip), breathing hose 14,15, absorbing carbon dioxide, air bag 3,4 (or gas storehouse), air bleeding valve 17, cooler 13 etc.Gas cylinder 1 is connected to decompressor 9 through switch 7, and relief valve 8 and proportional valve 19 are arranged in the decompressor 9, and decompressor 9 connects cooler 13 and balloonet 4 respectively by automatic replenishing valve 11, also has manual replenish valve 10 between decompressor 9 and the balloonet 4; Cooler 13 is communicated with face shield 1 by inhaling hose 14, inlet valve 16, face shield 1 is communicated with main gasbag 3 through outlet valve 17, expiration flexible pipe 15 again, loading spring 2 and air bleeding valve 18 are arranged on the main gasbag 3, and main gasbag 3 bottoms connect peace and quiet jar 5, and peace and quiet jar 5 is communicated with balloonet 4.What determine the oxygen breathing apparatus protective capacities is the respiratory system of oxygen breathing apparatus.The main distinction of positive-pressure type oxygen breathing apparatus and common oxygen breathing apparatus is respiratory system.

Two air bag positive pressure oxygen respirator operation principles as shown in the figure, arrow is represented the gas flow direction, when the switch 7 of gas cylinder 6 was opened, the oxygen of weight feed continuously flowed into cooler 13 after decompressor 9 decompression.When user was air-breathing, gas was lowered the temperature through cooler 13, entered in the face shield 1 to be sucked by user behind inhaling hose 14, inlet valve 16 again; When user is exhaled, the gas of breathing out enters peace and quiet jar 5 of carbon dioxide through outlet valve 17, expiration flexible pipe 15, main gasbag 3, calcium hydroxide in jar absorbs the carbon dioxide gas in the breath, enter balloonet 4 back and participate in breath cycle once more with mixing from the gas in the gas cylinder 6, then by cooler 13, through inlet valve 16, inhaling hose 14, just finished whole breath cycle again.The gas of Xi Ruing is greater than recyclegas if desired, automatic replenishing valve 11 supplemental oxygens.Then discharge through air bleeding valve 18 if any unnecessary gas, circulation is gone down repeatedly successively.If breaking down, respiratory circulatory system can supply with a large amount of oxygen by manual replenish valve 10.

Claims (3)

1, a kind of pair of air bag positive pressure oxygen respirator, comprise gas cylinder (6), decompressor (9), breathing hose (14), (15), peace and quiet jar of (5) and cooler (13), gas cylinder (6) is connected to air bag (4) and cooler (13) by decompressor (9), and cooler (13) connects inhaling hose (14); Expiration flexible pipe (15) connects peace and quiet jar (5), and peace and quiet jar (5) are connected with air bag (4), it is characterized in that; Add a main gasbag (3) between expiration flexible pipe (15) and peace and quiet jar (5), expiration flexible pipe (15) is connected on the main gasbag (3), and main gasbag (3) connects peace and quiet jar (5).

2, according to claim 1 pair of air bag positive pressure oxygen respirator is characterized in that: loading spring (2) is arranged on the said main gasbag (3).

3, according to claim 1 pair of air bag positive pressure oxygen respirator is characterized in that: air bleeding valve (18) is arranged on the said main gasbag (3).