JPS61288878A - Oxygen generator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an oxygen generating device for supporting breathing and recovering from fatigue during emergencies or extreme sports, particularly an oxygen generator using sodium percarbonate. 14-N+ +
k7 饋:chi8 erasure Mao1. ! I+-1/lj envy b
This is the method of dividing th.

[Background Technology J: Oxygen-filled cylinders are generally used as equipment for supplying oxygen in the event of a fire, an oxygen deficiency accident, or an outbreak of hazardous γ, but these cylinders are large and easy to use. - and is expensive. For this reason, an oxygen generator that can be easily used is desired.

In order to meet this requirement, Japanese Unexamined Patent Publication No. 54-93
There is one shown in Publication No. 896. This method generates oxygen using a chlorate mixture, and in this respect it is easier to use than the method using an oxygen cylinder.
It has the advantage of being able to However, the device shown here requires the removal of harmful impurities such as chlorine gas, and in order to absorb these and ensure the safety of the device, it is complicated and expensive. It ends up.

Here, in JP-A No. 54-26990, sodium percarbonate (N tr , C(''), 3 no 2
It has been shown that oxygen can be generated by contacting T-1,(')-'i with a suspension or aqueous solution of a catalyst. In this case, compared to the above-mentioned conventional example, it is much easier to use, is safer, more reliable, and is less expensive. However, if the alkaline aqueous solution comes in contact with the skin or gets into the eyes, it can cause irritation and damage, and the containers are discarded after use! The development of a product that can safely treat aqueous alkaline solutions is awaited.

[Object of the Invention J The present invention has been made in view of the above points, and includes:
The purpose is to provide an oxygen generator that can safely and easily neutralize a strongly alkaline sodium carbonate solution after use.

[Disclosure of the Invention 1] Accordingly, the oxygen generating device according to the present invention generates oxygen by adding sodium percarbonate 3 and manganese dioxide or a metal salt such as iron, copper, or lead to be used as a catalyst to water 5. In the oxygen generator, an acidic substance 10 that reacts with the alkaline substance after reaction to become a neutralized salt substance can be freely mixed with water, and by neutralizing the alkaline substance after oxygen generation with the acidic substance 10, The above objectives have been achieved.

The present invention will be described in detail below based on illustrated embodiments.

1 to 4 show an embodiment of the present invention, in which a container 1 formed into a bottomed cylindrical shape with an open top is made of a material such as polypropylene or polyethylene by blow molding or the like. Water 5 containing an aromatic agent is placed inside the container. A hollow cap 2 is fitted into the upper end of the container 1 and sealed by adhesion or welding to prevent water 5 in the container 1 from leaking.

This cap 2 is formed by innoexy blow molding or the like, and an isolation film 7 made of polyethylene terephthalate film, aluminum foil, or a laminated film of these is attached to the small diameter opening at the lower end of the cap 2. It is pasted. An oxygen discharge port 21 surrounded by a thin wall portion 11 is provided in the center of the upper surface of the cap 2. A filter 15 is installed inside the oxygen discharge port 21, and a filter 15 is installed in the oxygen discharge port 21. A plunger 16 is suspended toward the target.

Furthermore, this cap 2 is integrally provided with a cover 22 in which a vent hole 17 is perforated, and the cover 22 can be raised by using the connecting part between one end edge of the cover 22 and the cap 2 as a hinge part. I'm here.

Sodium percarbonate 3 and an acidic substance 10 coated with a water-soluble polymer capsule are housed in the upper part of this cap 2. Further, the catalyst 4 is housed in an isolation container 6 with an open bottom that is fitted into the small diameter portion at the lower end of the cap 2, and the 17 um 3 and the acidic substance 10 are separated from the catalyst 4 by the isolation container 6. It is stored in the cap 2 in a closed state. Here, the acidic substance 10 preferably has a high solubility, such as citric acid or tartaric acid, but also has a weak solubility. In addition, in order to carry out the neutralization reaction after the completion of oxygen generation, the powder of the acidic substance 10 is encapsulated with a natural water-soluble polymer such as gelatin or casein, a semi-synthetic water-soluble polymer, or a water-soluble polymer such as polyvinyl alcohol. The coated material is placed in the same container as the catalyst 4 such as sodium percarbonate 3 or manganese dioxide. The coating thickness, concentration, type, etc. of the coating material of the acidic substance 10 are set so that its disintegration time starts only after the oxygen generation reaction is completed. In addition, as the catalyst 4, in addition to manganese dioxide and iron as described above, powders of metal salts such as copper, nickel, cobalt, manganese, chromium, lead, vanadium, tungsten, or their compounds are used. It is preferable that the solid substances are coated with water-soluble substances having different disintegration times in water, and that when they are put into water together with sodium percarbonate 3, oxygen is generated in the feed stand within a certain period of time.

However, in this oxygen generator, the package [3 shown in FIG. 1 is taken, and as shown in FIGS. 2 and 4,
After raising the cover 22 and opening it, open the oxygen outlet 2.
1, the blanker 16 and isolation container 6 push and break the isolation film 7 whose peripheral edge is fixed to the lower end opening edge of the cap 2, and in order to open the lower end opening of the cap 2, the isolation film 7 containing the catalyst 4 is opened. At the same time that the container 6 falls into the water 5, the sodium percarbonate 3 will also fall into the water. As a result, the lithium (percarbonate) is decomposed by the action of the catalyst 4 to generate oxygen, which passes through the cap 2 and is discharged from the oxygen discharge port 21.
Here, a cover 22 raised from the cap 2 constitutes an inhalation mask together with the side pieces 12 hanging down from both sides thereof, and the cover 22 also has a plurality of vent holes 17.
Since it is the end of the day, the user will inhale a mixture of oxygen and outside air released from the oxygen outlet 21.

Notch 1 to prevent the nose from hitting the cover 22
4 is a provision. The filter 15 disposed inside the oxygen outlet 21 prevents mist etc. from passing through when this oxygen is generated, and also prevents water from coming out during dedication. It is made of fiber etc. Further, the lower opening edge of the isolation container 6 that breaks the isolation film 7 is serrated.

In this example, carbonic acid after oxygen generation)
Since the acidic substance 10 that neutralizes the +7 um solution is placed in the container 1, after the oxygen generation is completed, a neutralization reaction occurs with sodium carbonate as shown in the following equation.

■When using citric acid as an acidic substance 3 NazC
O3+ 2 CsHsOt→2 Na5C@HSo?
+ 3 Hz O+3 COt↑ In this way, about 70 to 80 g of citric acid is neutralized per 100 g of sodium percarbonate, resulting in a safe aqueous solution with a pH of about 7.

■When using tartaric acid as an acidic substance 3 N +12
COs 1 C4Hs Os →N a 2 C4H<
Os + H, O + C02↑ In this way, about 80 to 120 g of tartar liquor is neutralized per 100 g of sodium percarbonate, resulting in a safe aqueous solution with a pH of about 7.

In addition, an air freshener 8 is placed in the water 5, and the oxygen outlet 2
The odor from the aromatic agent 8 is added to the oxygen discharged from the air conditioner 1.

If there is an odor from the fragrance 8, the user will know that oxygen is being generated. As the aromatic agent 8, a solid one made by impregnating urethane 7 with a fragrance, a mixture of a water-soluble substance such as alcohol and a fragrance, or a mixture of an oil-based substance and a fragrance can be used. , the smell of air freshener 8 is citrus,
You can choose one that suits your purpose and preference, such as men's scents, forest scents, etc. Additionally, components such as phytoncide may be added.

[Effect of the invention 1 As described above, in the present invention, the salt is neutralized by reacting with the alkaline substance after the reaction! Since the acidic substances used in I&I can be freely mixed with water, alkaline substances after oxygen generation can be easily and inexpensively turned into a safe neutral solution using a simple oxygen generator, which prevents them from getting into the eyes. Moreover, even if it adheres to the skin, it does not cause irritation, and even when the oxygen generating equipment is disposed of after use, there is no problem in disposing of the alkaline aqueous solution as in the past.

[Brief explanation of drawings]

FIG. 1 is a front view of one embodiment of the present invention, FIG. 2 is a perspective view showing the same state of use, FIG. 3 is a sectional view of FIG. 1, and FIG. 4 is a sectional view of FIG. 2. , 3 is percarbonate) +7um,
4 represents a catalyst, 5 represents water, and 10 represents an acidic substance. Agent Patent Attorney Ishi 1) Ai 7r, - 'Z7 Figure 2 Figure 3 Figure 4 Procedural Amendment (Spontaneous) September 7, 1985 Patent Application No. 128536, 1985 2, Name of Invention Oxygen Generating device 3, relationship with the case of the person making the amendment Patent applicant address 1048 Kadoma, Kadoma City, Osaka Prefecture Name (58
3) Matsushita Electric Works Co., Ltd. Representative: Sadao Fujii 4, Agent postal code: 530 Address: 1-12-17-5 Umeda, Kita-ku, Osaka City Date of amendment order: 6 Number of inventions increased by amendment: None 7. Specification and drawings subject to amendment 8. Contents of amendment 1) r3NaicOsJ on page 8, line 18 of the specification [
I will correct it as NazcO3J. 2) Figures 3 and 4 of the attached drawings will be corrected as shown in attached figures 3 and 4.

Claims (2)

[Claims] (1) In an oxygen generator that generates oxygen by adding sodium percarbonate and manganese dioxide or a metal salt such as iron, copper, or lead used as a catalyst to water, the neutralized salt reacts with the alkaline substance after the reaction. An oxygen generator that can freely mix acidic substances with water. (2) The oxygen generating device according to claim 1, characterized in that the oxygen generating device has a core made of an acidic substance and is surrounded by a capsule made of a water-soluble polymer.