Portable handheld solid oxygen generator used in special environment

Abstract

The invention discloses a portable handheld solid oxygen generator used in a special environment. The portable handheld solid oxygen generator comprises an oxygen generator body, a heat insulation protective layer and a shell. More than two heat insulation protective layers are arranged between the outer wall of the oxygen generator and the shell, and the overall outer diameter is not more than 70 mm; an oxygen generating core of the oxygen generator comprises chlorate, a catalyst, fuel and a chlorine inhibitor; chlorate is sodium chlorate or potassium perchlorate; the catalyst is one or more of cobalt oxide, cobaltosic oxide, cobalt hydroxide or cobalt chloride; the fuel is metal fuel; the chlorine inhibitor is one or more of barium peroxide or calcium hydroxide. The oxygen generator is fast in oxygen generation, high in purity, small in size, light in weight, free of maintenance, easy to operate, convenient to carry, safe, reliable, high in environmental adaptability and low in surface temperature, and can be used under the limiting working condition without being affected by the external environment.

Description

Technical Field

[0001] This invention relates to, and more specifically to, a portable handheld solid oxygen generator for use in special environments. Background Technology

[0002] my country has a vast territory, a huge land area, and extremely complex terrain. A considerable portion of its land lies in extreme and harsh environments such as high altitudes, polar regions, deep seas, and deep earth areas. These environments are mostly characterized by low temperatures and low oxygen levels, posing a significant challenge to survival.

[0003] Oxygen is essential for human survival; sufficient oxygen can maintain normal physiological functions and protect health. However, when working in special environments, persistent low oxygen levels can adversely affect a person's senses, thinking, emotions, and actions, and in severe cases, can even cause irreversible damage to the body.

[0004] Currently, the most effective solution is to continuously provide the human body with sufficient oxygen. In special areas such as high-altitude regions, although large-scale oxygen supply devices have been deployed, these devices suffer from high energy consumption and are inconvenient to move. Personnel mainly supplement their oxygen supply through fixed-point oxygen inhalation or by using oxygen cylinders and oxygen bags. However, these methods are inconvenient to carry and pose certain dangers, failing to meet the oxygen supply needs of mobile personnel in remote areas or high-altitude fields.

[0005] In confined spaces such as aerospace, submarines, and mines, chemical oxygen generation is commonly used. This method has advantages such as rapid oxygen production, high purity, maintenance-free operation, simple operation, and safety and reliability. However, existing chemical oxygen generation products are mostly used in multi-person scenarios and generally suffer from problems such as large size and high surface temperature, resulting in insufficient portability.

[0006] Therefore, the oxygen supply needs in special environments such as high altitudes are unique, requiring oxygen supply devices to develop towards miniaturization, lightweighting, intelligence, and portability. Summary of the Invention

[0007] In view of this, the present invention provides a portable handheld solid oxygen generator for use in special environments, which produces oxygen quickly, with high purity, small size, light weight, maintenance-free operation, simple operation, convenient portability, safety and reliability, high environmental adaptability, low surface temperature, and can be used in extreme working conditions unaffected by external environment.

[0008] The technical solution adopted in this invention is as follows:

[0009] A portable handheld solid oxygen generator for use in special environments includes an oxygen generator, a heat insulation layer, and a housing;

[0010] The oxygen generator has two or more heat insulation protective layers between its outer wall and its outer shell, and its overall outer diameter is no more than 70 mm.

[0011] The oxygen-generating core of the oxygen generator includes chlorate, catalyst, fuel, and chlorine inhibitor; the chlorate is sodium chlorate or potassium perchlorate; the catalyst is one or more of cobalt oxide, cobalt tetroxide, cobalt hydroxide, or cobalt chloride; the fuel is a metallic fuel; and the chlorine inhibitor is one or more of barium peroxide or calcium hydroxide.

[0012] Furthermore, the chlorate is sodium chlorate, the catalyst is cobalt hydroxide, the fuel is iron powder, and the chlorine inhibitor is barium peroxide.

[0013] Furthermore, the heat insulation protective layer consists of two layers, namely heat insulation layer I and heat insulation layer II, with heat insulation layer I on the inner side and heat insulation layer II on the outer side. Heat insulation layer I is one of silica aerogel, glass fiber, polyurethane or polyimide fiber; heat insulation layer II is one of silicone pad or polyimide fiber.

[0014] Furthermore, the oxygen generator has a pagoda-shaped connector for connecting an oxygen mask or nasal cannula.

[0015] Furthermore, the outer casing includes a housing and end caps. The inner wall of the housing is provided with an aluminum film, and the outer wall of the housing is provided with a waterproof film. Both ends of the housing are sealed by end caps, which are made of one of the following: easy-open caps, easy-tear caps, tinplate caps, or plastic caps.

[0016] Furthermore, the oxygen generator has an impact-activated start-up mechanism, and the impact-activated firing mechanism uses a bent, rotatable release pin.

[0017] Furthermore, the purification materials of the oxygen generator include acid gas purification materials, carbon monoxide purification materials, and solid particulate purification materials.

[0018] Furthermore, the carbon monoxide purification material is a precious metal catalyst, and the precious metal catalyst is made into a purification bed.

[0019] Beneficial effects:

[0020] 1. The heat insulation protective layer of this invention is assembled with the oxygen generator through a tight fit. After the heat insulation treatment of the heat insulation protective layer, the surface temperature of the solid oxygen generator during use can be reduced to below 65°C, which is enough to be held in the hand. It can be held in the hand throughout the oxygen production process, making it convenient to use and carry. Moreover, the outer diameter of the overall structure does not exceed 70 mm, which can be used by a single person. Its small size increases the portability of the solid oxygen generator.

[0021] Secondly, the oxygen generator's oxygen-producing core is composed of chlorate, catalyst, fuel, and chlorine inhibitor. It has a stable oxygen production rate and a safe oxygen production process. It can provide oxygen to a single person for 8-20 minutes at temperatures between -40℃ and 50℃, making it suitable for use in special environments.

[0022] 2. The catalyst used in this invention is not sensitive to temperature and has good environmental adaptability, making the oxygen production process more stable and reliable.

[0023] 3. The oxygen generator of this invention has a pagoda-shaped connector for gas output, which can be directly connected to an oxygen mask or nasal cannula, making it easy to operate and widely applicable.

[0024] 4. The impact-activated firing structure of this invention adopts a bent and rotatable release pin, which can adapt to installation / removal in narrow spaces. The pin can rotate 360° to avoid jamming. Locking / releasing can be completed with one hand, saving space and increasing safety. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the solid oxygen generator of the present invention.

[0026] Figure 2 This is a schematic diagram of the bendable and rotatable release pin of the present invention, where (a) and (b) show its different rotation states.

[0027] Figure 3 This is the oxygen supply curve for Example 1.

[0028] Figure 4 This is the oxygen supply curve for Example 2.

[0029] Figure 5 This is the oxygen supply curve for Example 3.

[0030] Among them, 1-outer shell, 2-heat insulation layer, 3-oxygen generator. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] This invention provides a portable handheld solid oxygen generator for use in special environments, referring to extreme low-temperature environments (temperatures below minus ten degrees Celsius), applicable to, but not limited to, high-altitude, deep-sea, polar, and deep-sea environments. Figure 1 As shown, the portable handheld solid oxygen generator includes an oxygen generator 3, a heat insulation layer 2, and a shell 1; the outer wall of the oxygen generator 3 and the shell 1 are provided with two or more heat insulation layers 2, and the overall outer diameter is no more than 70 mm, which can be used by a single person holding it, thus increasing the portability of the solid oxygen generator.

[0033] In this embodiment, the heat insulation layer 2 consists of two layers, wrapped around the outer wall of the oxygen generator 3. These are heat insulation layer I and heat insulation layer II, with heat insulation layer I on the inner side and heat insulation layer II on the outer side. Heat insulation layer I has a low thermal conductivity and can absorb heat, effectively reducing internal heat loss while absorbing some heat. Heat insulation layer II has a high density, further reducing heat loss. The combined thickness of heat insulation layer I and heat insulation layer II is less than 1.5 cm.

[0034] Insulation layer I can be one of silica aerogel, glass fiber, polyurethane, or polyimide fiber; insulation layer II can be one of silicone pad or polyimide fiber. Preferably, insulation layer I is silica aerogel, which has a low thermal conductivity and can effectively isolate the heat generated by oxygen generator 3, reducing the surface temperature of the solid oxygen generator. Insulation layer II is a silicone pad, which can further reduce the heat transfer generated by oxygen generator 3, thereby reducing the surface temperature of the solid oxygen generator. After insulation treatment, the surface temperature of the solid oxygen generator during use can be reduced to below 65°C, reaching a handheld temperature, allowing it to be held throughout the oxygen production process, making it convenient to use and carry.

[0035] The oxygen generator 3 includes a starting structure, an oxygen-generating core, a purification material, and an exhaust structure. The function of the oxygen generator 3 is to provide oxygen that can be breathed by humans. Its preferred shape is a cylinder, which makes it easier to assemble and also facilitates assembly with the heat insulation layer 2.

[0036] The oxygen-generating core of the oxygen generator 3 includes chlorate, catalyst, fuel, and chlorine inhibitor; the chlorate is sodium chlorate (NaClO3) or potassium perchlorate (KClO4); the catalyst is one or more of cobalt oxide, cobalt tetroxide, cobalt hydroxide, or cobalt chloride; the fuel is a metallic fuel; and the chlorine inhibitor is one or more of barium peroxide or calcium hydroxide.

[0037] Preferably, the chlorate is sodium chlorate, the catalyst is cobalt hydroxide, the fuel is iron powder, and the chlorine inhibitor is barium peroxide. This combination of four components produces oxygen quickly and with high purity, and can stably produce oxygen even in extreme low-temperature environments.

[0038] The outer casing 1 includes a housing and end caps. Both ends of the housing are sealed by the end caps, which can be one of the following: easy-open caps, easy-tear caps, tin caps, or plastic caps. An easy-open cap is preferred as it provides good sealing, is easy to open, and is convenient to carry. One end of the outer casing 1 is the air outlet, mainly used to connect to the nasal cannula. The interior of this end is opposite to the air outlet structure of the oxygen generator 3. The other end of the outer casing 1 is the start-up end, used to start the oxygen generator 3. The start-up end and the air outlet end cannot be on the same end; otherwise, purification will fail.

[0039] The casing is made of paper or wood, with paper being a preferred choice. An aluminum film is added to the inner wall of the paper casing. This method has two main advantages: firstly, it further reduces the surface temperature of the solid oxygen generator; secondly, it increases the smoothness of the casing's interior, making assembly easier. A waterproof membrane is provided on the outer wall of the casing, providing waterproofing and moisture protection.

[0040] The oxygen generator 3 has a pagoda-shaped connector for connecting an oxygen mask or nasal cannula.

[0041] The oxygen generator 3 uses an impact start mechanism, which allows it to be used under extreme conditions unaffected by external environmental factors. It offers advantages such as not relying on external energy and high stability, enabling it to start without energy in extreme environments. Of course, electric start can also be used if conditions permit.

[0042] Preferably, the impact-activated firing structure employs a bent, rotatable release pin, such as... Figure 2 As shown, the pin has a bent structure, which is suitable for installation / removal in narrow spaces. The pin can rotate 360° to avoid jamming. Locking / releasing can be completed with one hand, saving space and increasing safety.

[0043] The purification materials in oxygen generator 3 include acid gas purification materials, carbon monoxide purification materials, and solid particulate purification materials. The gas generated by oxygen generator 3 first passes through a particulate filter layer (such as a ceramic filter element) to intercept reaction residues and dust; secondly, it passes through a chemical adsorption layer (such as modified activated carbon) to remove harmful gases such as chlorine and ozone; then, it passes through a catalytic decomposition layer (such as MnO) to degrade residual peroxides and CO; finally, it passes through a molecular sieve drying layer to remove moisture, ensuring that the output oxygen is pure, dry, and meets medical or industrial safety standards. After purification through each layer, the oxygen produced by the solid oxygen generator reaches the purity standard for medical oxygen and can be directly supplied for human respiration. Preferably, the carbon monoxide purification material uses a precious metal catalyst, which has a superior purification effect. Furthermore, the precious metal catalyst is made into a purification bed, which increases the specific surface area of ​​the precious metal catalyst, thereby increasing the purification effect.

[0044] When using it, first open the caps at both ends of the solid oxygen generator, connect an oxygen mask or nasal cannula to the end of the gas outlet structure and wear it on your face, then start the solid oxygen generator to supply oxygen.

[0045] The following specific examples illustrate the feasibility of the present invention.

[0046] Example 1

[0047] In this embodiment 1, the oxygen generator 3 is started by impact. Sodium chlorate is used as the oxygen source in the oxygen-generating cartridge. The outlet structure is a pagoda connector. Insulation layer I is made of fiberglass, insulation layer II is a silicone pad, the shell is a paper shell containing an aluminum foil, and the end caps use an easy-open sealing method. Figure 3 As shown, this solid oxygen generator can supply power to a single person for more than 8 minutes in an environment ranging from -20℃ to 50℃. Detailed information about the solid oxygen generator is as follows:

[0048]

[0049] As can be seen from the table above, the solid oxygen generator in Example 1 has a series of advantages such as small size, light weight, high environmental adaptability, stable oxygen supply, excellent gas quality, and low surface temperature.

[0050] Example 2

[0051] In this embodiment 2, the oxygen generator 3 is started by impact. Sodium chlorate is used as the oxygen source in the oxygen-generating cartridge. The outlet structure is a pagoda connector. Insulation layer I is silica aerogel felt, insulation layer II is polyimide fiber cloth, the shell is a paper shell containing an aluminum film, and the end caps use an easy-tear sealing method. Figure 4 As shown, this solid oxygen generator can provide power for a single person for more than 10 minutes in an environment with temperatures ranging from -40℃ to 50℃. Detailed information about this solid oxygen generator is as follows:

[0052]

[0053] As can be seen from the table above, the solid oxygen generator in Example 2 also has a series of advantages such as small size, light weight, high environmental adaptability, stable oxygen supply, excellent gas quality, and low surface temperature.

[0054] Example 3

[0055] In this embodiment 3, the oxygen generator 3 is electrically started. Sodium chlorate is used as the oxygen source in the oxygen-generating cartridge. The outlet structure is a pagoda connector. Insulation layer I is made of fiberglass, insulation layer II is a silicone pad, the shell is a paper shell containing an aluminum foil, and the end caps are sealed with tinplate caps. Figure 5 As shown, this solid oxygen generator can supply a single person with oxygen for more than 20 minutes in an environment ranging from -40℃ to 30℃. Detailed information about this solid oxygen generator is as follows:

[0056]

[0057]

[0058] As can be seen from the table above, the solid oxygen generator in Example 3 also has a series of advantages such as small size, light weight, high environmental adaptability, stable oxygen supply, long oxygen supply time, excellent gas quality, and low surface temperature.

[0059] Therefore, the solid oxygen generator of the present invention has a stable oxygen production rate and a safe oxygen production process. It can provide oxygen to a single person for 8-20 minutes at temperatures between -40℃ and 50℃ and can be used under extreme working conditions unaffected by external environment.

[0060] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A portable handheld solid oxygen generator for use in special environments, characterized in that, Includes oxygen generator, heat insulation layer and outer shell; The oxygen generator has two or more heat insulation protective layers between its outer wall and its outer shell, and its overall outer diameter is no more than 70 mm. The oxygen-generating core of the oxygen generator includes chlorate, catalyst, fuel, and chlorine inhibitor; the chlorate is sodium chlorate or potassium perchlorate; the catalyst is one or more of cobalt oxide, cobalt tetroxide, cobalt hydroxide, or cobalt chloride; the fuel is a metallic fuel; and the chlorine inhibitor is one or more of barium peroxide or calcium hydroxide.

2. The portable handheld solid oxygen generator for use in special environments as described in claim 1, characterized in that, The chlorate is sodium chlorate, the catalyst is cobalt hydroxide, the fuel is iron powder, and the chlorine inhibitor is barium peroxide.

3. The portable handheld solid oxygen generator for use in special environments as described in claim 1, characterized in that, The heat insulation protective layer consists of two layers: heat insulation layer I and heat insulation layer II. Heat insulation layer I is on the inner side and heat insulation layer II is on the outer side. Heat insulation layer I is one of silica aerogel, glass fiber, polyurethane or polyimide fiber; heat insulation layer II is one of silicone pad or polyimide fiber.

4. The portable handheld solid oxygen generator for use in special environments as described in claim 1, characterized in that, The oxygen generator has a pagoda-shaped connector for connecting to an oxygen mask or nasal cannula.

5. The portable handheld solid oxygen generator for use in special environments as described in claim 1 or 3, characterized in that, The outer casing includes a shell and end caps. The inner wall of the shell is provided with an aluminum film, and the outer wall of the shell is provided with a waterproof film. Both ends of the shell are sealed by end caps, which are made of one of the following: easy-open caps, easy-tear caps, tinplate caps, or plastic caps.

6. The portable handheld solid oxygen generator for use in special environments as described in claim 1, characterized in that, The oxygen generator is activated by impact, and the impact activation mechanism uses a bent, rotatable release pin.

7. The portable handheld solid oxygen generator for use in special environments as described in claim 1, characterized in that, The purification materials of the oxygen generator include acid gas purification materials, carbon monoxide purification materials, and solid particulate purification materials.

8. The portable handheld solid oxygen generator for use in special environments as described in claim 7, characterized in that, The carbon monoxide purification material is a precious metal catalyst, and the precious metal catalyst is made into a purification bed.

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