CN112110418B - Portable oxygen supply respirator - Google Patents
Portable oxygen supply respirator Download PDFInfo
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- CN112110418B CN112110418B CN202011008039.XA CN202011008039A CN112110418B CN 112110418 B CN112110418 B CN 112110418B CN 202011008039 A CN202011008039 A CN 202011008039A CN 112110418 B CN112110418 B CN 112110418B
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- gas circuit
- inner rotating
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000001301 oxygen Substances 0.000 title claims abstract description 77
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 77
- 238000001179 sorption measurement Methods 0.000 claims abstract description 79
- 239000007789 gas Substances 0.000 claims abstract description 66
- 238000011010 flushing procedure Methods 0.000 claims abstract description 22
- 238000003795 desorption Methods 0.000 claims abstract description 17
- 239000002808 molecular sieve Substances 0.000 claims abstract description 12
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 7
- 239000003570 air Substances 0.000 claims 56
- 239000012080 ambient air Substances 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000000926 separation method Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 230000007954 hypoxia Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000003470 mitochondria Anatomy 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Organic Chemistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
A portable oxygen supply respirator belongs to the technical field of molecular sieve pressure swing adsorption oxygen production. The portable oxygen supplying respirator comprises a first air pressurizing cabin, a second air pressurizing cabin, a compressed air cache tank, a first adsorption cabin, a second adsorption cabin and an oxygen cache cabin; the first adsorption cabin and the second adsorption cabin are respectively provided with an oxygen-making molecular sieve, and the compressed air buffer tank is respectively communicated with the two adsorption cabins through an adsorption gas circuit; the two adsorption cabins are respectively communicated with the oxygen buffer cabin through a flushing air channel, the two adsorption cabins are respectively communicated with the oxygen buffer cabin through an exhaust air channel, and the two adsorption cabins are respectively provided with a desorption air channel; each gas circuit is connected with the rotary gas circuit delay switch through an interface; the first air pressurizing cabin and the second air pressurizing cabin are respectively communicated with the compressed air buffer tank through pipelines. The invention can provide power through a plurality of modes such as a motor, a rocker arm and the like so as to prepare oxygen.
Description
Technical Field
The invention relates to a technology in the field of molecular sieve pressure swing adsorption oxygen production, in particular to a portable oxygen supply respirator.
Background
In environments with rarefaction of air and hypoxia, the normal activities of humans are greatly limited, and for high altitude mobility staff, and for patients with partial respiratory disorders, a timely and adequate oxygen supply is particularly important.
The oxygen production principle of the commonly used oxygen production equipment at present comprises a cryogenic method, a membrane separation method and a pressure swing adsorption method. Based on the main components of oxygen and nitrogen in air, the cryogenic separation method is to compress, purify and heat-exchange air serving as a raw material to prepare liquefied air, and obtain the oxygen after separating nitrogen through rectification by utilizing the difference of boiling points of liquid oxygen and liquid nitrogen in the liquefied air; the membrane separation method is to use air as a raw material, and under a certain pressure condition, oxygen and nitrogen are separated by utilizing different permeabilities of the oxygen and the nitrogen in a separation membrane, so that oxygen is prepared; the pressure swing adsorption process is to use air as raw material and zeolite molecular sieve as adsorbent, and to utilize the difference of adsorption amount of oxygen and nitrogen molecules in air on zeolite molecular sieve to realize the circulation process of oxygen and nitrogen separation.
However, the existing oxygen generating equipment by the cryogenic method is large in volume and inconvenient to carry; although the oxygenerator based on the membrane separation method can reduce the volume to a corresponding extent, the cost of the separation membrane is higher, and the separation membrane is easy to damage, so the practicality is poor; the pressure swing adsorption oxygen generator has the advantages of simplicity, flexibility, low failure rate, easy maintenance, high automation degree, convenient operation, low energy consumption and the like, and is suitable for small and medium-scale air separation oxygen generation occasions.
The Chinese operators are wide, and the altitude is above 3000 m in the plateau and mountain area, which occupies about one sixth of the total area of the whole country. The climate in the plateau area is changeable, the climate is cold, the wind is big, the air is thin, the atmospheric pressure and the oxygen partial pressure are reduced, and the air is a main factor of the influence of the plateau environment on the human body. The minority nationality living in the plateau area is adapted to the plateau environment, and for people living in the low-altitude area for a long time, the oxygen partial pressure in the atmosphere is reduced to correspondingly reduce the oxygen partial pressure of alveolar gas and arterial blood, and the oxygen partial pressure gradient difference between capillary blood and cell mitochondria is reduced to cause hypoxia for the plateau area with the initial support of more than 3000 meters. The influence of oxygen deficiency in the plateau area on human body, and the cold, strong wind, rain and snow climate and strong ultraviolet irradiation in the plateau area become a plurality of factors for inducing and aggravating the plateau diseases. Timely oxygen supplementation becomes an effective way for improving the adaptability of human bodies, relieving altitude stress and even saving lives.
At present, various oxygen generating and supplying devices can supply oxygen in fixed places, but for mobile people, the conventional oxygen supplying devices mainly comprise an oxygen bag, a small oxygen bottle and the like. Such devices require constant oxygenation and have limited oxygen capacity, which is inconvenient to use and cannot ensure oxygen supply. Therefore, portable oxygenerators are researched and developed at home and abroad. Considering that the Pressure Swing Adsorption (PSA) method produces oxygen with high concentration and no harmful gas, the method is adopted by most portable oxygenerators at home and abroad.
The existing PSA oxygen generating equipment basically adopts a miniature air compression pump and various electromagnetic valves to carry out air path control, the equipment is not powered off, and when the power is insufficient or no power exists in the field, the oxygen generating equipment is not used and can not provide oxygen support in emergency.
The present invention has been made to solve the above-mentioned problems occurring in the prior art.
Disclosure of Invention
The invention provides a portable oxygen supplying respirator which can supply power in various modes such as a battery, a rocker arm and the like to prepare oxygen.
The invention comprises a first air pressurizing cabin, a second air pressurizing cabin, a compressed air buffer tank, a first adsorption cabin, a second adsorption cabin, an oxygen buffer cabin and a rotary air path delay switch;
the first air pressurizing cabin and the second air pressurizing cabin are respectively communicated with the compressed air buffer tank through pipelines; a first piston is arranged in the first air pressurizing cabin and is connected with a first connecting rod; a second piston is arranged in the second air pressurizing cabin and is connected with a second connecting rod; the first connecting rod and the second connecting rod are in transmission connection with the power mechanism;
the first adsorption cabin and the second adsorption cabin are respectively provided with an oxygen-making molecular sieve, and the compressed air buffer tank is respectively communicated with the two adsorption cabins through an adsorption gas circuit; the two adsorption cabins are respectively communicated with the oxygen buffer cabin through a flushing air channel, the two adsorption cabins are respectively communicated with the oxygen buffer cabin through an exhaust air channel, and the two adsorption cabins are respectively provided with a desorption air channel; the adsorption gas path, the desorption gas path, the flushing gas path and the exhaust gas path are respectively connected with the rotary gas path delay switch through interfaces.
Preferably, the flushing air channel and the exhaust air channel of the two adsorption cabins are connected through a pressure equalizing air channel, and the pressure equalizing air channel is connected with the rotary air channel delay switch through an interface.
Preferably, the rotary gas circuit delay switch comprises a plurality of disc jackets and inner rotating sheets which are correspondingly penetrated in the disc jackets one by one, the disc jackets are provided with gas circuit connectors, and the inner rotating sheets are provided with gas circuit channels; the inner rotating piece is fixedly connected through an inner rotating piece connecting shaft; in the rotating process of the inner rotating piece, when the air channel on the inner rotating piece is communicated with the air channel connecting port on the disc outer sleeve, the air channel is opened, and when the air channel on the inner rotating piece is misplaced with the air channel connecting port on the disc outer sleeve, the air channel is closed.
Preferably, the power mechanism comprises a rocker arm which is in transmission connection with the first connecting rod, the second connecting rod and the inner rotating piece connecting shaft. Preferably, one end of the rocker arm is provided with a driving gear, the first connecting rod and the second connecting rod are respectively and eccentrically fixed on a driven gear, the driving gear is meshed with the driven gear, and the driving gear is in transmission connection with the connecting shaft of the inner rotating piece through two groups of bevel gears; so that oxygen can be continuously supplied by manual operation without electric power. The rocker arm can also be used for directly driving the inner rotation piece connecting shaft to rotate, the rotation piece connecting shaft drives a driving gear to rotate through two groups of bevel gears, the driving gear is meshed with two driven gears, one of the two driven gears is eccentrically fixed with the first connecting rod, and the other driven gear is eccentrically fixed with the second connecting rod respectively.
Further preferably, the power mechanism comprises a battery, the battery is connected with a motor, and the motor is in transmission connection with the connecting shaft of the inner rotating piece.
Preferably, the power mechanism comprises a battery, the battery is electrically connected with a motor, the motor is in transmission connection with a crankshaft, the crankshaft is connected with the first connecting rod and the second connecting rod, and meanwhile, the crankshaft is in transmission connection with the connecting shaft of the inner rotating piece; the drive connection may be any of the existing drive connections, preferably as a geared drive connection. The rocker arm can be arranged corresponding to the crankshaft or the inner rotating piece connecting shaft, and one of the crankshaft or the inner rotating piece connecting shaft is driven to rotate manually, and then the other structure in the crankshaft or the inner rotating piece connecting shaft is driven to rotate, so that continuous oxygen supply is realized through manual operation.
The time required by opening and closing the gas channel in one rotation period can be regulated by the designed proportion of the gas channel length to the perimeter, and if a plurality of gas channels are arranged on the inner rotation sheet, the opening and closing times of a single gas channel can be controlled, and a plurality of gas channels with the same opening and closing time sequence can be also controlled.
Preferably, the first adsorption cabin is communicated with the compressed air buffer tank and is provided with a compressed air one-way valve and an external air one-way valve; the second adsorption cabin is communicated with the compressed air buffer tank and is provided with a compressed air one-way valve and an external air one-way valve. By arranging the compressed air one-way valve and the external air one-way valve, the external air is sucked into the air pressurizing cabin and is pressed into the compressed air buffer tank in one direction, so that the compressed air pressurizing cabin can work by utilizing the internal and external pressure difference, electric driving is not needed, and time sequence control is not needed.
The molecular sieve is preferably a lithium type molecular sieve, in particular an ultra-efficient lithium type molecular sieve, or an adhesive-free type full zeolitizing lithium type molecular sieve.
The battery may be various types of portable batteries such as lithium ion rechargeable batteries, nickel cadmium rechargeable batteries, alkaline batteries, hydrogen fuel cells, and the like.
Technical effects
Compared with the prior art, the invention has the following technical effects:
1) By arranging the rotary gas path delay switch, the first adsorption cabin and the second adsorption cabin sequentially perform operations such as adsorption, flushing, pressure equalizing, exhaust, desorption and the like, so that continuous oxygen production is realized;
2) Can provide power through a battery, a rocker arm and the like to prepare oxygen;
3) Meets the portable requirement, has the weight of 200 g-2000 g and the volume of 1L-5L;
3) The oxygen production efficiency is 1-100L per minute.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a manual oxygen production structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a connection structure between a rotary gas circuit delay switch and each gas circuit in embodiment 1;
FIG. 4 is a schematic diagram of controlling the opening and closing of a gas path in embodiment 1;
FIG. 5 is a schematic diagram of the embodiment 1 in which two gas paths are simultaneously controlled to be opened and closed;
FIG. 6 is a timing chart of the rotary air path delay switch control of the air paths in embodiment 1;
in the figure: the device comprises a crankshaft 1, a driving wheel 2, a driving wheel 3, a first connecting rod 4, a second connecting rod 5, a first piston 6, a second piston 7, a first air pressurizing cabin 8, a second air pressurizing cabin 9, a first one-way valve 10, a second one-way valve 11, an outside air one-way valve 12, an outside air one-way valve 13, a compressed air buffer tank 14, a first adsorption valve 15, a second adsorption valve 16, a first desorption valve 17, a second desorption valve 18, a first adsorption cabin 19, a second adsorption cabin 20, a pressure equalizing valve 21, a first flushing valve 22, a second flushing valve 23, an oxygen buffer cabin 24, a first exhaust valve 25, an oxygen outlet 26, a second exhaust valve 27, a rotary air path delay switch 28, a driving wheel 29, a motor 31 and a driving wheel 32;
a driving gear 40, a driven gear 41, and a driven gear 42;
the disk jacket 281, the inner rotation piece 282, and the inner rotation piece connecting shaft 283.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
Example 1
As shown in fig. 1, the present embodiment includes a first air pressurizing room 8, a second air pressurizing room 9, a compressed air buffer tank 14, a first adsorption room 19, a second adsorption room 20, an oxygen buffer room 24, and a rotary air path delay switch 28.
The compressed air buffer tank 14 is communicated with the first adsorption cabin 19 through a first adsorption gas path, the first adsorption gas path is provided with a first adsorption valve 15, the first adsorption cabin 19 is provided with a first desorption gas path, and the first desorption gas path is provided with a first desorption valve 17; the first adsorption chamber 19 is communicated with the oxygen buffer chamber 24 through a first flushing air path and a first exhaust air path, the first flushing air path is provided with a first flushing valve 22, and the first exhaust air path is provided with a first exhaust valve 25.
The compressed air buffer tank 14 is communicated with the second adsorption cabin 20 through a second adsorption gas path, the second adsorption gas path is provided with a second adsorption valve 16, the second adsorption cabin 20 is provided with a second desorption gas path, and the second desorption gas path is provided with a second desorption valve 18; the second adsorption chamber 20 is communicated with the oxygen buffer chamber 24 through a second flushing air path and a second exhaust air path, the second flushing air path is provided with a second flushing valve 23, and the second exhaust air path is provided with a second exhaust valve 27.
The oxygen buffer compartment 24 is provided with an oxygen outlet 26 for supplying oxygen.
The first flushing air channel, the first exhaust air channel, the second flushing air channel and the second exhaust air channel are communicated through a pressure equalizing air channel, and the pressure equalizing air channel is provided with a pressure equalizing valve 21.
The adsorption gas path, the desorption gas path, the flushing gas path, the exhaust gas path and the pressure equalizing gas path are respectively connected with the rotary gas path delay switch through interfaces.
The rotary air circuit delay switch 28 comprises five disc jackets 281 and inner rotation pieces 282 which are correspondingly penetrated in the disc jackets one by one, the disc jackets 281 are provided with air circuit connectors, and the inner rotation pieces 282 are provided with air circuit channels; the five inner rotation pieces 282 are fixedly connected by an inner rotation piece connecting shaft 283; in the rotating process of the inner rotating piece, when the air channel on the inner rotating piece is communicated with the air channel connecting port on the disc outer sleeve, the air channel is opened, and when the air channel on the inner rotating piece is misplaced with the air channel connecting port on the disc outer sleeve, the air channel is closed. The time required by opening and closing the gas channel in one rotation period can be regulated by the designed proportion of the gas channel length to the perimeter, and if a plurality of gas channels are arranged on the inner rotation sheet, the opening and closing times of a single gas channel can be controlled, and a plurality of gas channels with the same opening and closing time sequence can be also controlled.
The first air pressurizing cabin 8 is communicated with the compressed air buffer tank 14 through a pipeline, and a first one-way valve 10 is arranged on the pipeline; the first air pressure chamber 8 is also provided with an outside air one-way valve 12.
The second air pressurizing cabin 9 is communicated with the compressed air buffer tank 14 through a pipeline, and a second one-way valve 11 is arranged on the pipeline; the second air pressure compartment 9 is also provided with an outside air one-way valve 13.
A first piston 6 is arranged in the first air pressurizing cabin 8, and the first piston 6 is connected with a first connecting rod 4; a second piston 7 is arranged in the second air pressurizing cabin 9, and the second piston 7 is connected with a second connecting rod 5; the first connecting rod 4 and the second connecting rod 5 are in transmission connection with the power mechanism.
The power mechanism comprises a motor 31 and a crankshaft 1, the motor 31 is electrically connected with a battery, the motor 31 is meshed with a driving wheel 32 and a driving wheel 3 to drive the crankshaft 1 to rotate, the crankshaft 1 is connected with a first connecting rod 4 and a second connecting rod 5, and meanwhile, the crankshaft 1 is meshed with a driving wheel 2 and a driving wheel 29 to drive an inner rotation piece connecting shaft 283 to rotate when the crankshaft rotates.
Another power mechanism configuration is shown in fig. 2 and may be used for manual oxygen production. The power mechanism comprises a rocker arm (not shown), wherein one end of the rocker arm is provided with a driving gear 40, a first connecting rod 4 is eccentrically fixed on a driven gear 41, a second connecting rod 5 is eccentrically fixed on a driven gear 42, the driving gear 40 is meshed with the two driven gears 41 and 42, and the driving gear 40 is in transmission connection with an inner rotation piece connecting shaft 283 through two groups of bevel gears; so that oxygen can be continuously supplied by manual operation without electric power. The power mechanism comprises a battery 31, the battery 31 is connected with a motor 30, and the motor 30 is in transmission connection with an inner rotation piece connecting shaft 283 through a bevel gear.
The first adsorption compartment 19 is taken as unit a and the second adsorption compartment 20 is taken as unit B. The connection mode of the related gas paths of the two units and the rotary gas path time delay control switch interface is shown in figure 3.
In specific application, one air channel can be controlled to be opened and closed, for example, only one air channel in the A unit is controlled to be opened and closed, the air channel is controlled to be opened and closed for 2 seconds and closed for 8 seconds sequentially after 10 seconds of rotation, and the opening and closing states are shown in fig. 4.
The two air paths can be controlled to be opened and closed simultaneously, the two air paths rotate for 10 seconds for one circle, one air path in the unit A is controlled to be opened for 4.5 seconds and closed for 5.5 seconds in sequence, and then one air path in the unit B is controlled to be opened for 4.5 seconds and closed for 5.5 seconds; the open-closed state combination is shown in fig. 5.
The multi-path gas paths can be controlled to be opened and closed simultaneously, and the control process according to the time sequence is shown in fig. 6.
It is emphasized that: the above embodiments are merely preferred embodiments of the present invention, and the present invention is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The portable oxygen supply respirator is characterized by comprising a first air pressurizing cabin, a second air pressurizing cabin, a compressed air buffer tank, a first adsorption cabin, a second adsorption cabin, an oxygen buffer cabin and a rotary gas circuit delay switch;
the first air pressurizing cabin and the second air pressurizing cabin are respectively communicated with the compressed air buffer tank through pipelines; a first piston is arranged in the first air pressurizing cabin and is connected with a first connecting rod; a second piston is arranged in the second air pressurizing cabin and is connected with a second connecting rod; the first connecting rod and the second connecting rod are in transmission connection with the power mechanism;
the first adsorption cabin and the second adsorption cabin are respectively provided with an oxygen-making molecular sieve, and the compressed air buffer tank is respectively communicated with the two adsorption cabins through an adsorption gas circuit; the two adsorption cabins are respectively communicated with the oxygen buffer cabin through a flushing air channel, the two adsorption cabins are respectively communicated with the oxygen buffer cabin through an exhaust air channel, and the two adsorption cabins are respectively provided with a desorption air channel; the adsorption gas circuit, the desorption gas circuit, the flushing gas circuit and the exhaust gas circuit are respectively connected with the rotary gas circuit delay switch through interfaces;
the rotary gas circuit delay switch comprises a plurality of disc jackets and inner rotating sheets which are arranged in the disc jackets in a penetrating mode in a one-to-one correspondence mode, the disc jackets are provided with gas circuit connectors, and the inner rotating sheets are provided with gas circuit channels; the inner rotating piece is fixedly connected through an inner rotating piece connecting shaft; in the rotating process of the inner rotating piece, when the air channel on the inner rotating piece is communicated with the air channel connecting port on the disc outer sleeve, the air channel is opened, and when the air channel on the inner rotating piece is misplaced with the air channel connecting port on the disc outer sleeve, the air channel is closed;
the power mechanism comprises a rocker arm, and the rocker arm is in transmission connection with the first connecting rod, the second connecting rod and the connecting shaft of the inner rotating piece.
2. The portable oxygen supplying respirator according to claim 1, wherein the flushing air passage and the exhaust air passage of the two adsorption chambers are connected through a pressure equalizing air passage, and the pressure equalizing air passage is connected with a rotary air passage delay switch through an interface.
3. The portable oxygen supplying respirator according to claim 1, wherein one end of the rocker arm is provided with a driving gear, the first connecting rod and the second connecting rod are respectively and eccentrically fixed on a driven gear, the driving gear is meshed with the driven gear, and the driving gear is in transmission connection with the connecting shaft of the internal rotation piece through two groups of bevel gears.
4. The portable oxygen supplying respirator of claim 1, wherein the rocker arm is directly connected with the inner rotating piece connecting shaft, the inner rotating piece connecting shaft is in transmission connection with a driving gear through two groups of bevel gears, the driving gear is respectively meshed with two driven gears, one of the two driven gears is eccentrically fixed with the first connecting rod, and the other of the two driven gears is eccentrically fixed with the second connecting rod.
5. The portable oxygen delivery respirator of claim 1, wherein the power mechanism comprises a battery connected with a motor in driving connection with the inner rotating blade connecting shaft.
6. The portable oxygen delivery respirator of claim 1, wherein the first adsorption compartment is in communication with a compressed air buffer tank and is provided with a compressed air check valve and an ambient air check valve; the second adsorption cabin is communicated with the compressed air buffer tank and is provided with a compressed air one-way valve and an external air one-way valve.
7. The portable oxygen supply respirator is characterized by comprising a first air pressurizing cabin, a second air pressurizing cabin, a compressed air buffer tank, a first adsorption cabin, a second adsorption cabin, an oxygen buffer cabin and a rotary gas circuit delay switch;
the first air pressurizing cabin and the second air pressurizing cabin are respectively communicated with the compressed air buffer tank through pipelines; a first piston is arranged in the first air pressurizing cabin and is connected with a first connecting rod; a second piston is arranged in the second air pressurizing cabin and is connected with a second connecting rod; the first connecting rod and the second connecting rod are in transmission connection with the power mechanism;
the first adsorption cabin and the second adsorption cabin are respectively provided with an oxygen-making molecular sieve, and the compressed air buffer tank is respectively communicated with the two adsorption cabins through an adsorption gas circuit; the two adsorption cabins are respectively communicated with the oxygen buffer cabin through a flushing air channel, the two adsorption cabins are respectively communicated with the oxygen buffer cabin through an exhaust air channel, and the two adsorption cabins are respectively provided with a desorption air channel; the adsorption gas circuit, the desorption gas circuit, the flushing gas circuit and the exhaust gas circuit are respectively connected with the rotary gas circuit delay switch through interfaces;
the rotary gas circuit delay switch comprises a plurality of disc jackets and inner rotating sheets which are arranged in the disc jackets in a penetrating mode in a one-to-one correspondence mode, the disc jackets are provided with gas circuit connectors, and the inner rotating sheets are provided with gas circuit channels; the inner rotating piece is fixedly connected through an inner rotating piece connecting shaft; in the rotating process of the inner rotating piece, when the air channel on the inner rotating piece is communicated with the air channel connecting port on the disc outer sleeve, the air channel is opened, and when the air channel on the inner rotating piece is misplaced with the air channel connecting port on the disc outer sleeve, the air channel is closed;
the power mechanism comprises a battery, the battery is electrically connected with a motor, the motor is in transmission connection with a crankshaft, the crankshaft is connected with the first connecting rod and the second connecting rod, and meanwhile, the crankshaft is in transmission connection with the connecting shaft of the inner rotating piece.
8. The portable oxygen supplying respirator of claim 7, wherein the flushing air path and the exhaust air path of the two adsorption chambers are connected through a pressure equalizing air path, and the pressure equalizing air path is connected with the rotary air path delay switch through an interface.
9. The portable oxygen supplying respirator of claim 7, wherein the rocker arm is provided corresponding to the crankshaft or the inner rotating plate connecting shaft, and one of the crankshaft or the inner rotating plate connecting shaft is manually driven to rotate, and the other of the crankshaft or the inner rotating plate connecting shaft is driven to rotate.
10. The portable oxygen delivery respirator of claim 7, wherein the first adsorption compartment is in communication with a compressed air buffer tank and is provided with a compressed air check valve and an ambient air check valve; the second adsorption cabin is communicated with the compressed air buffer tank and is provided with a compressed air one-way valve and an external air one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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