JP2003192312A - Simple oxygen generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple oxygen generator capable of generating oxygen by a simple rapid reaction of an agent which is composed of water, sodium percarbonate and a catalyst, and convenient for carrying and housing. <P>SOLUTION: A water bag 2 which houses water 7, and an agent 3 which consists of sodium percarbonate and the catalyst, are housed in a cushioning bag 4, and the cushioning bag 4 is housed in a breathable film bag 5. As an alternative, the cushioning bag 4 which houses the water bag 2 housing the water 7 and the agent 3 consisting of sodium percarbonate and the catalyst, are housed in the breathable film bag 5. Furthermore, the breathable film bag 5 is housed in an outer bag 6. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple oxygen generator, and more particularly to a simple oxygen generator capable of easily and instantly generating necessary oxygen when a disaster or the like is encountered. Regarding the generator.

[0002]

2. Description of the Related Art Conventionally, a simple oxygen generator has not been proposed, but a smoke mask used in a fire or the like, a dust mask used in an environment where dust is generated, oxygen-deficient air or toxic gas, etc. The masks for disaster prevention used in this environment were used. However, these disaster masks were not provided with a device for supplying air or oxygen.

In addition, there are an air respirator, an oxygen respirator, etc. to make up for the defects of these various disaster prevention masks.
These respirators decompress air or oxygen compressed and filled in a high-pressure container to about 2.5 atm by a decompressor, inhale through a mask-type or helmet-type face piece, and exhale to the outside by an exhaust valve. It was used to extinguish and rescue fires in chemical factories, high-rise buildings, and underground malls.

[0004]

Since various conventional disaster masks are not provided with a device for supplying air or oxygen, when a disaster such as a fire occurs or when a disaster such as a fire is encountered. However, since air or oxygen cannot be appropriately supplied, functions such as smoke prevention, dust prevention, and gas prevention are deteriorated, and there is a problem that a disaster cannot be effectively avoided. Therefore, there has been a strong demand for the development of a simple oxygen generator that can be easily attached to these disaster prevention masks.

Further, the conventional air breathing apparatus or oxygen breathing apparatus uses a high-pressure container for compressing and filling air or oxygen, and this container has a considerable weight and cannot be easily carried. Also, it was inconvenient to handle, such as taking up space when storing when not in use. Therefore, as a smoke proof in the event of a fire, as a dust proof used in an environment where dust is generated, as a work in an environment such as oxygen-deficient air or toxic gas, or as a mountaineering to prevent altitude sickness Furthermore, there has been a strong demand for the development of a simple oxygen generator which is easy to handle and used for patients with diseases of organs such as lungs.

The object of the present invention is to solve the problems existing in the prior art, and oxygen can be generated by simply and instantaneously reacting a chemical consisting of water and sodium percarbonate with a catalyst. It is to provide a simple oxygen generator that is convenient to carry and store.

[0007]

The present invention is a simple oxygen generator in which a water bag containing water and a chemical consisting of sodium percarbonate and a catalyst are housed in a buffer bag, and the buffer bag is used as an aeration membrane bag. The present invention is characterized in that a buffer bag formed by storing or a water bag storing water, a chemical consisting of sodium percarbonate and a catalyst is stored in a gas permeable membrane bag, and the gas permeable membrane bag is stored in an outer bag.

Further, the simple oxygen generator of the present invention is characterized in that the water is obtained by filtering the clean water with activated carbon to remove residual chlorine.

Further, the simple oxygen generator of the present invention is characterized in that the water bag is formed of a material having a property of easily bursting when a predetermined external pressure is applied, for example, a plastic film such as polyethylene. .

Further, the simple oxygen generator of the present invention is characterized in that the catalyst is made of manganese dioxide.

In the simple oxygen generator of the present invention, the buffer bag is made of a material having a property of temporarily blocking the water flowing out from the water bag and then slowly flowing it out, for example, a plastic such as polyethylene. It is characterized by being formed from a non-woven fabric or a processed paper in which a plastic such as polyethylene is mixed.

Further, in the simple oxygen generator of the present invention, the gas permeable bag is formed of a material having a property of allowing only the generated gas to pass through without passing water, for example, a plastic film such as polyethylene. Characterize.

Further, the simple oxygen generator of the present invention is characterized in that the outer bag is formed of a film formed by vapor-depositing aluminum on a plastic film such as polyethylene.

Furthermore, the simple oxygen generator of the present invention comprises:
A hose for oxygen supply is detachably connected to the outer bag.

Further, in the simple oxygen generator of the present invention, the other end of the hose having one end removably connected to the outer bag can be directly attached to a human mouth or nostril, or the hose of the hose can be attached. A mask-type facepiece or a helmet-type facepiece is detachably attached to the other end.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the simple oxygen generator of the present invention will be described in more detail with reference to a preferred embodiment shown in the drawings. 1 is a vertical sectional view showing a simple oxygen generator 1 according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA of the simple oxygen generator shown in FIG. ,
FIG. 3 is a front view showing a mask type face piece for oxygen suction connected to the simple oxygen generator 1 of the present invention, FIG. 4 is a bottom view of the mask type face piece of FIG. 3, and FIG. It is a front view which shows the helmet type face body for oxygen suction connected to the simple oxygen generator 1.

The simple oxygen generator 1 of the present invention uses water 7 and sodium percarbonate as the chemical 3 as the oxygen source and manganese dioxide as the catalyst. Water used 7
It is preferable that clean water is filtered with activated carbon to remove residual chlorine, and oxygen can be stably generated. The water bag 2 containing the water 7 is preferably formed from a material having a property of bursting easily and instantly when a predetermined external pressure is applied, for example, a plastic film such as polyethylene.

On the outside of the water bag 2, a chemical 3 composed of sodium percarbonate for generating oxygen and manganese dioxide as a catalyst is arranged. The water bag 2 and the chemical 3 are buffer bags 4.
It is stored in. Alternatively, only the water bag 2 may be stored in the buffer bag 4, and the medicine 3 may be arranged outside the buffer bag 4.

The buffer bag 4 is made of a material having a property of temporarily blocking the water flowing out of the water bag 2 and then gently discharging it to the outside, for example, a nonwoven fabric made of a plastic such as polyethylene or a plastic such as polyethylene. It is desirable to be formed from mixed processed paper.

The water bag 2 is covered with the buffer bag 4 so that when oxygen is to be generated, a predetermined pressure is applied from the outside of the simple oxygen generator 1 to rupture the water bag 2 and Water 7
Is slowly discharged to the outside to react with the chemicals 3. At this time, the buffer bag 4 is used to temporarily block the water 7 from flowing out of the water bag 2 to the outside, thereby relaxing the water flow. is there. That is, it has a role as a so-called buffer.

The buffer bag 4 containing the water bag 2 and the medicine 3, or the buffer bag 4 containing the water bag 2 and the medicine 3 is contained in the gas permeable membrane bag 5. 5 is further housed in the outer bag 6 to form the simple oxygen generator 1. The gas permeable bag 5 is a gas generated without passing water 7,
That is, it is desirable to use a material having a property of transmitting only oxygen, for example, a plastic film such as polyethylene as a material. Further, it is desirable that the outer bag 6 is formed of a film obtained by vapor-depositing aluminum on a plastic film such as polyethylene in order to increase strength.

A hose connecting portion 8 is attached to the outer bag 6, and one end of a hose 9 for supplying oxygen is detachably attached to the hose connecting portion 8. The other end of the hose 9 can be directly attached to a human mouth or nostril. This attachment structure may be, for example, a known structure in which the hose 9 is directly held in the mouth in the mouth portion, and a known attachment such as a rubber band can be used in the nostril.

Alternatively, a mask type face piece or a helmet type face piece is detachably attached to the other end of the hose 9. These face bodies are not limited to the illustrated embodiments, and various face bodies conventionally used in various fields can be naturally used.

FIG. 3 shows an embodiment of a mask type face piece 10 connected to the simple oxygen generator 1. The mask type face piece 10 has a hose 9 from the simple oxygen generator 1.
A hose connecting portion 11 for detachably attaching is attached. The mask type face piece 10 is composed of three layers,
The outer layer 12 is formed of a film obtained by vapor-depositing aluminum on a plastic film such as polyethylene,
The intermediate layer 13 is formed of a cloth body having a smokeproof function, and the inner layer 14 is formed of a ventilation body such as a nonwoven fabric. 15
Is a nose pad made of a flexible material such as lead or aluminum, and functions so that the face piece 10 is more closely attached to the face. 16 is a string to be worn around the ear.

The mask type face piece connected to the simple oxygen generator 1 of the present invention is not limited to the above-mentioned face piece 10, but an environment such as a smoke-proof mask type face piece, a dust-proof mask type face piece, an oxygen-deficient air or a toxic gas. It is possible to connect any mask type face piece such as a mask type face piece for working below, a mountain climbing mask type face piece for preventing altitude sickness, and a mask type face piece for patients having a disease in organs such as lungs.

FIG. 5 shows an embodiment of the helmet type face piece 17 connected to the simple oxygen generator 1. The hose 9 from the simple oxygen generator 1 is attached to and detached from the helmet type face piece 17. A hose connection 18 that is freely attached is attached. The helmet-type face piece 17 is composed of three layers, and the outer layer 19 is formed by using a transparent plastic film such as polyethylene as a material.
Is formed of a cloth body having a smokeproof function, and the inner layer 21 is
It is made of a ventilation material such as non-woven fabric.

It should be noted that only a transparent outer layer 19 is provided in the helmet type face member 17 at a position where both eyes of a human are located in order to secure a visual field. Further, by providing a detachable stopper at a portion of the helmet type face piece 17 corresponding to the human neck, the face piece 17 can be steadily covered by the human head.

The helmet-type face piece connected to the simple oxygen generator 1 of the present invention is not limited to the above-mentioned face piece 17, but a smoke-proof helmet-type face piece, a dust-proof helmet-type face piece, an environment such as oxygen-deficient air or toxic gas. A helmet-type face mask for working below,
It is possible to connect any helmet-type face piece for mountain climbing helmet face-pieces for prevention of altitude sickness, and further helmet-type face piece for patients who have a disease in organs such as lungs.

Since the simple oxygen generator 1 of the present invention is constructed as described above, when the generator 1 is hit with a fist at the time of a disaster such as a fire, the water bag 2 is ruptured. The water 7 flows out of the water bag 2, the chemical 3 composed of sodium percarbonate and manganese dioxide as a catalyst is dissolved in the water 7, and a known chemical reaction is performed to generate oxygen.

The oxygen generated in the gas permeable membrane bag 5 flows out to the outer bag 6 through the gas permeable membrane bag 5, and the mouth or nostril of a human being, the mask type face body 10 or the helmet type face body 17 through the hose 9. Is supplied to. The gas permeable bag 5 is made of a material having a property of allowing only the gas generated without passing the water 7, that is, oxygen to pass through, for example, a plastic film such as polyethylene, which is convenient for carrying. .

Next, assuming that the breathing time during use is about 15 to 20 minutes, the amount of oxygen generated is required to be 3 g / min to 4 g / min. The theoretical oxygen requirement for humans is as follows. Oxygen amount in the air: 0.277 g / L Respiratory rate per person: 500 ml / time Respiratory rate per minute for human: 16 times (normal) Respiratory rate per minute for human: Normal: 500 ml / time x 16 times = 8 L / min Exercise: 40 L / min (about 5 times the normal)

[0032]   Absorbed oxygen amount per minute for human:               Normal time: 8 L / min × 0.277 gL = 2.216 g / min               During exercise: 40 L / min x 0.277 gL = 11.08 g / min   Oxygen concentration in air: 21%   Oxygen concentration in nausea: 17%   Oxygen utilization rate (absorption into the body): 4%   Oxygen utilization (absorption into the body):     Normal: 2.216 g / min × 4 / 100≈0.09 g / min = 60 ml / min     During exercise: 11.08 g / min × 4 / 100≈0.44 g / min = 310 ml / min     * Calculated assuming a volume of 2 mol of oxygen 1 mol (32 g)

Since the effective oxygen content of sodium percarbonate is 12%, the required amount of sodium percarbonate and the required amount of water are as follows. [Required Sodium Percarbonate] Oxygen generation rate of 3g / min-4g /
If so, the amount of sodium percarbonate is (0.09 g / min to 0.44 g / min) × (15 minutes to 2)
0 minutes) × 100/12 = 11.25 g to 73.33 g Note) 1: 11.25 g is the amount of sodium percarbonate required for 15 minutes in normal times Note) 2: 73.33 g is 20 minutes during exercise Sodium percarbonate required for water [required amount of water] Solubility of sodium percarbonate in "water" is 1
It is 4% (normal temperature and normal pressure), so the required amount of water is (1
1.25 g to 73.33 g) × 100/14 = 80.3
It becomes 6g-523.79g.

The simple oxygen generator of the present invention can be used as a portable device, and in that case, it is preferable that the proper weight is within 200 g. The relationship between the amount of sodium percarbonate and the amount of water is It is determined by the solubility of sodium carbonate in "water".

[0035]

As described above, according to the simple oxygen generator of the present invention, by bursting the water bag at the time of use,
Oxygen can be reliably generated by simply and instantly reacting a chemical consisting of water and sodium percarbonate and a catalyst, can be effectively used in the event of a disaster, and is convenient for carrying and storing.

Further, in the simple oxygen generator of the present invention, a hose to be connected is directly attached to a human mouth or nostril,
Alternatively, the hose can be easily and easily attached to a mask-type facepiece or a helmet-type facepiece, and can be used for smoke prevention in the event of a fire, for dust protection in an environment where dust is generated, or for oxygen-deficient air or toxic gas. It can be used for a wide range of purposes, such as for working in the environment, for climbing to prevent altitude sickness, and for patients with diseases such as lungs.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a simple oxygen generator according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of the simple oxygen generator shown in FIG.

3 is a front view of a mask-type face piece connected to the simple oxygen generator shown in FIG. 1. FIG.

FIG. 4 is a bottom view of the mask-type face piece shown in FIG.

5 is a front view of a helmet type face piece connected to the simple oxygen generator shown in FIG. 1. FIG.

[Explanation of symbols]

1 Simple oxygen generator 2 water bags 3 chemicals 4 buffer bag 5 breathable membrane bag 6 outer bag 7 water 8, 11, 18 Hose connection 9 hoses 10 Mask type face piece 12, 19 outer layer 13, 20 Middle layer 14,21 inner layer 15 Nose pad 16 strings 17 Helmet-type face piece

Claims (9)

[Claims] 1. A water bag containing water and a chemical consisting of sodium percarbonate and a catalyst are housed in a buffer bag, and this buffer bag is housed in a breathable membrane bag, or a water bag containing water. A simple oxygen generator characterized in that a chemical consisting of a buffer bag, sodium percarbonate and a catalyst is housed in a gas permeable membrane bag, and the gas permeable membrane bag is housed in an outer bag. 2. The simple oxygen generator according to claim 1, wherein the water is obtained by filtering clean water with activated carbon to remove residual chlorine. 3. The simple according to claim 1, wherein the water bag is formed of a material having a property of easily bursting when a predetermined external pressure is applied, for example, a plastic film such as polyethylene. Oxygen generator. 4. The simple oxygen generator according to claim 1, 2 or 3, wherein the catalyst is formed of manganese dioxide. 5. A material having a property that the buffer bag temporarily blocks the water flowing out from the water bag and then slowly flows out to the outside, for example, a nonwoven fabric made of a plastic such as polyethylene or a plastic such as polyethylene. The simplified oxygen generator according to claim 1, wherein the oxygen generator is formed from mixed processed paper. 6. The gas permeable membrane bag is formed of a material having a property of allowing only generated gas to pass through without passing water, for example, a plastic film such as polyethylene. The simple oxygen generator according to 3, 4, or 5. 7. The simple oxygen according to claim 1, wherein the outer bag is formed of a film formed by depositing aluminum on a plastic film such as polyethylene. Generator. 8. A hose for supplying oxygen is detachably connected to the outer bag.
The simple oxygen generator of 3, 4, 5, 6 or 7. 9. A hose having one end removably connected to the outer bag and the other end directly attachable to a human mouth or nostril, or the other end of the hose is a mask-type face body or helmet type The simple oxygen generator according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the face piece is detachably attached.