CN111359068A - Totally-enclosed oxygen generation cycle safety breathing system and oxygen supply method - Google Patents
Totally-enclosed oxygen generation cycle safety breathing system and oxygen supply method Download PDFInfo
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- CN111359068A CN111359068A CN202010292495.5A CN202010292495A CN111359068A CN 111359068 A CN111359068 A CN 111359068A CN 202010292495 A CN202010292495 A CN 202010292495A CN 111359068 A CN111359068 A CN 111359068A
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- 239000001301 oxygen Substances 0.000 title claims abstract description 129
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 129
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 172
- 239000001569 carbon dioxide Substances 0.000 claims description 86
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 86
- 238000002156 mixing Methods 0.000 claims description 63
- 239000007789 gas Substances 0.000 claims description 49
- 238000010521 absorption reaction Methods 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 239000012528 membrane Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 8
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 claims description 7
- 239000008188 pellet Substances 0.000 claims description 6
- 230000000241 respiratory effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 210000002345 respiratory system Anatomy 0.000 claims description 3
- 230000001413 cellular effect Effects 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 210000004072 lung Anatomy 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000009189 diving Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- LHGJTWLUIMCSNN-UHFFFAOYSA-L disodium;sulfate;heptahydrate Chemical compound O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O LHGJTWLUIMCSNN-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- -1 laboratories Chemical compound 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
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- 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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- 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
- A61M16/105—Filters
-
- 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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
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- 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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
- A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
- A61M2016/0036—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
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- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3368—Temperature
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Abstract
The invention discloses a fully-closed oxygen generation circulation safe breathing system and an oxygen supply method, belonging to the technical field of breathing equipment. The oxygen supply method can provide air with better quality for human body under the severe environment, and better ensures the safety of breathing air.
Description
Technical Field
The invention belongs to the technical field of breathing equipment, and particularly relates to a fully-closed oxygen generation cycle safe breathing system and an oxygen supply method.
Background
The new coronavirus epidemic prevention and control and the mask anti-droplet are carried out, so that the problem of safely breathing virus-free clean fresh air is already a problem. It has become a difficult problem how to enable medical personnel in a viral environment to breathe safely. How to make people safely watch videos and perform industrial reworking in closed places such as movie theaters in or after epidemic situations becomes a difficult problem. Therefore, a personal breathing device in a self-sealing system is urgently needed to solve the problems of personal breathing and complete isolation of viruses in epidemic situations.
On the other hand, the traditional self-closed environment breathing system, such as diving and mountain climbing, uses a high-pressure oxygen cylinder to supply oxygen. However, the oxygen cylinder needs high-pressure production, has great self-weight and can only supply oxygen once, and the limitation is obvious. Breathing masks have been developed that begin to produce oxygen by chemical reaction instead of bulky high pressure oxygen cylinders, which can absorb carbon dioxide and release oxygen by chemical reaction, but do not produce enough oxygen to meet the needs of human lung breathing. Therefore, the technical personnel in the field begin to think how to construct a respiratory environment with a closed airway device communicated with the lung, a chemical reaction device is arranged in the airway, carbon dioxide generated in the lung is absorbed by a chemical reaction mode, oxygen required by respiration is supplemented, and a balanced state of oxygen absorption and oxygen supply of the lung is achieved under the condition of ensuring safety, so that a set of safe and independent respiratory system is established to solve the problems.
Disclosure of Invention
The embodiment of the invention aims to provide a fully-closed oxygen generation circulation safety breathing system which is simple in structure and convenient to use and can better solve the problems.
The embodiment of the invention aims to provide a fully-closed oxygen-making circulation safe oxygen supply method which can provide air with better quality for human bodies under the severe environment.
The embodiment of the invention is realized by the following steps:
the embodiment of the invention provides a fully-closed oxygen-making circulation safe breathing system which comprises a head-wearing part, a carbon dioxide absorption bin, an air mixing bin, an oxygen making bin, an air temporary storage bin and a controller, wherein the head-wearing part is worn on the head of a user, a closed space is formed inside the head-wearing part, the head-wearing part is provided with an air circulation air outlet hole and an air circulation air inlet hole, the air circulation air outlet hole of the head-wearing part is communicated with an air inlet of the carbon dioxide absorption bin through a pipeline, the pipeline is provided with a first fan, an air outlet of the carbon dioxide absorption bin is communicated with an air inlet of the air mixing bin through a pipeline, the pipeline is provided with a drying bin, the oxygen making bin is communicated with an air inlet of the air mixing bin through a pipeline, an air outlet of the air mixing bin is communicated with an air inlet of the air temporary, the air outlet of the air temporary storage bin is communicated with the air circulation air inlet hole of the head-mounted part through a pipeline, and the first fan is connected with the controller.
Optionally, the oxygen generation storehouse includes shell, reaction flask and feeding mechanism, the inside of shell is equipped with the support ring, the support ring with the inner wall sliding fit of shell, the inside of shell still is equipped with rings, rings suspend in midair in through the extension spring on the support ring, rings cover is located the bottleneck outside of reaction flask, the bottleneck of reaction flask is equipped with the gas-liquid separation membrane that is used for sealing the bottleneck, feeding mechanism set up in the outside of shell, feeding mechanism's discharge end stretches into in the reaction flask and pass gas-liquid separation membrane extremely inside the reaction flask, the gas outlet of shell with the air inlet in air mixing storehouse passes through the pipeline intercommunication.
Optionally, feeding mechanism includes pay-off hard tube, feeding hose and pay-off motor, the pay-off hard tube set up in the outside of shell, the one end of pay-off hose with the one end of pay-off hard tube is connected, the other end of pay-off hose stretches into in the shell and pass the gas-liquid separation membrane extremely inside the reaction flask, be equipped with the push rod on the pay-off motor, the one end of push rod is followed keeping away from of pay-off hard tube the one end of feeding hose is inserted in the pay-off hard tube, the pay-off motor with the controller is connected.
Optionally, the carbon dioxide absorbs and is equipped with cellular sodium peroxide pellet in the storehouse, the carbon dioxide absorb the storehouse with pipeline outside cover between the dry storehouse is equipped with the cooling ring, the air mix storehouse with be equipped with macromolecule diaphragm and second fan in the pipeline between the air temporary storage storehouse, the second fan with the controller is connected.
Optionally, a pressure sensor and a temperature sensor are arranged in a pipeline between the air mixing bin and the air temporary storage bin, a first oxygen content sensor and a carbon dioxide sensor are arranged in the air temporary storage bin, and the pressure sensor, the temperature sensor, the first oxygen content sensor and the carbon dioxide sensor are all connected with the controller.
Optionally, a second oxygen content sensor is arranged in a pipeline between the drying bin and the air mixing bin, a gas flow control valve is arranged on a pipeline between the oxygen making bin and the air mixing bin, and the second oxygen content sensor and the gas flow control valve are both connected with the controller.
Optionally, a third fan is arranged on a pipeline between the drying bin and the air mixing bin, a fourth fan and an electromagnetic valve are arranged on a pipeline between the air temporary storage bin and the head-mounted part, and the third fan, the fourth fan and the electromagnetic valve are all connected with the controller.
Optionally, an external respiration control valve is arranged on the head-mounted part and is used for communicating with a fresh air storage bag or external air through a pipeline.
Optionally, the head-mounted component is a face mask or a helmet, and the carbon dioxide absorption bin, the air mixing bin, the oxygen generation bin, the air temporary storage bin and the controller are all arranged on the head-mounted component.
Optionally, the head-mounted component is a face mask or a helmet, the carbon dioxide absorbs the bin, the air mixing bin, the oxygen generation bin, the air temporary storage bin and the controller are all arranged on the head-mounted component, or the carbon dioxide absorbs the bin, the air mixing bin, the oxygen generation bin, the air temporary storage bin and the controller are all worn on the human body through hanging pieces.
The embodiment of the invention also provides a totally-enclosed oxygen production cycle safe oxygen supply method, which comprises the following steps:
s1: the gas exhaled by the human body is conveyed into the carbon dioxide absorption bin, and in the carbon dioxide absorption bin, the carbon dioxide in the gas is absorbed and reacts to generate oxygen;
s2: the gas treated by the carbon dioxide absorption bin flows into the air mixing bin, and the oxygen content in the gas treated by the carbon dioxide absorption bin is detected;
s3: according to the result of the oxygen content detection in the step S2, controlling the amount of oxygen delivered to the air mixing bin by the oxygen making bin, and ensuring that the oxygen content in the air mixing bin is 21-24%;
s4: conveying the gas in the air mixing bin to an air temporary storage bin, and then detecting the oxygen content and the carbon dioxide content; when the oxygen content and the carbon dioxide content meet the set requirements, the gas in the air temporary storage bin is conveyed into the head-wearing part for people to breathe; when oxygen content and carbon dioxide content do not accord with the settlement requirement, if the user is in the environment that can take off the wear part, then take off the wear part, if the user is in the environment that can not take off the wear part, then continue to carry the gas in the air temporary storage storehouse to wear part in, can use the air in the fresh air bag of being connected with it through outer antithetical couplet respiratory control valve simultaneously.
The invention has the beneficial effects that:
the totally-enclosed oxygen-generating circulation safe breathing system provided by the embodiment of the invention is convenient to use, the head-wearing part is worn on the head of a user, carbon dioxide gas generated during breathing and other gas components in air are conveyed into the carbon dioxide absorption bin under the action of the first fan, the carbon dioxide gas reacts in the carbon dioxide absorption bin to generate oxygen, the oxygen generated in the carbon dioxide absorption bin and other unabsorbed gases flow into the air mixing bin, the oxygen generated in the oxygen generation bin also flows into the air mixing bin, the gases in the air mixing bin flow into the air temporary storage bin after being mixed, the air flowing into the air temporary storage bin is air with good quality, and the air in the air temporary storage bin flows into the head-wearing part for breathing of the user and circulates back and forth, so that the air required for breathing in a closed environment is provided. The respiratory system can ensure that carbon dioxide generated by respiration is not discharged to the outside but is used for reacting to prepare oxygen, thereby ensuring the supply of oxygen in a closed environment, ensuring that air is not exchanged with the outside and better ensuring the safety of the respiratory air.
The totally-enclosed oxygen-making circulation safe oxygen supply method provided by the embodiment of the invention can provide air with better quality for human body under the severe environment condition, and better ensures the safety of breathing air.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a fully-enclosed oxygen-generating cycle safety breathing system provided by an embodiment of the invention;
fig. 2 is a schematic connection block diagram of a circuit according to an embodiment of the present invention.
In the figure: 11-a headgear component; 111-air circulation outlet holes; 112-air circulation intake; 113-an external respiratory control valve; 12-a carbon dioxide absorption bin; 121-sodium peroxide pellets; 122-a first fan; 123-a drying bin; 124-a third fan; 125-cooling ring; 126-a second oxygen content sensor; 127-a first door; 13-an air mixing bin; 131-a gas flow control valve; 14-oxygen making chamber; 140-a second door; 141-a housing; 142-a reaction flask; 1421 — gas-liquid separation membrane; 143-support ring; 144-a lifting ring; 145-tension spring; 146-feeding hard pipes; 147-a feed hose; 148-a feeding motor; 149-push rod; 15-air temporary storage; 151-a second fan; 152-macromolecular membrane; 153-fourth fan; 154-solenoid valve; 155-a pressure sensor; 156-a temperature sensor; 157-a first oxygen content sensor; 158-a carbon dioxide sensor; 16-a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1 and 2, a fully-closed oxygen generation cycle safe breathing system according to an embodiment of the present invention includes a head-wearing component 11, a carbon dioxide absorption bin 12, an air mixing bin 13, an oxygen generation bin 14, an air temporary storage bin 15 and a controller 16.
The head-wearing part 11 is used for wearing on the head of a user, and the contour edge of the head-wearing part 11 is tightly attached to the skin of the head of a human body, so that the inside of the head-wearing part 11 forms a closed space.
The head-wearing part 11 is provided with an air circulation outlet hole 111 and an air circulation inlet hole 112. The head mount 11 may use a face mask, a helmet, or the like.
The carbon dioxide absorption bin 12 is provided with an air inlet and an air outlet, the carbon dioxide absorption bin 12 is internally provided with a core block for absorbing carbon dioxide, the carbon dioxide absorption bin 12 is provided with a first bin gate 127, and the carbon dioxide absorption core block can be replaced by opening the first bin gate 127 so as to ensure the absorption effect on the carbon dioxide. In this embodiment, the sodium peroxide is made into the sodium peroxide pellets 121 having a honeycomb structure, and then the sodium peroxide pellets are placed in the carbon dioxide absorption bin 12, and when carbon dioxide gas enters the carbon dioxide absorption bin 12, the carbon dioxide gas reacts with the sodium peroxide pellets 121 to generate oxygen.
The air inlet of the carbon dioxide absorption bin 12 is communicated with the air circulation outlet hole 111 of the head-wearing part 11 through a pipeline, and the pipeline is provided with a first fan 122, and the first fan 122 can pump out the air inside the head-wearing part 11 and convey the air into the carbon dioxide absorption bin 12.
The air mixing bin 13 is provided with an air inlet and an air outlet, a tee joint is arranged at the air inlet of the air mixing bin 13, one joint of the tee joint is connected with the air inlet of the air mixing bin 13, the second joint of the air mixing bin 13 is communicated with the air outlet of the carbon dioxide absorption bin 12 through a pipeline, a drying bin 123 is arranged on the pipeline, and a drying agent is filled in the drying bin 123. A third fan 124 is arranged on a pipeline between the drying bin 123 and the air mixing bin 13, and the third fan 124 can enable the gas in the carbon dioxide absorbing bin 12 to flow into the air mixing bin 13 quickly.
A cooling ring 125 can be sleeved outside the pipeline between the carbon dioxide absorption bin 12 and the drying bin 123, the cooling ring 125 comprises a cooling ring 125 shell and a heat-absorbing substance arranged in the cooling ring 125 shell, and the heat-absorbing substance can be sodium sulfate heptahydrate (Na)2SO4·7H2O) or sodium carbonate (Na) heptahydrate2CO3·7H2O), etc., so that the cooling ring 125 can cool the gas flowing through the pipe to prevent the gas from being excessively hot.
The oxygen plant 14 comprises a housing 141, a reaction flask 142 and a feeding mechanism.
The shell 141 is a spherical structure, the shell 141 is provided with an air outlet, the shell 141 is provided with a second bin door 140, the inside of the shell 141 is provided with a support ring 143, the support ring 143 is in sliding fit with the inner wall of the shell 141, the inside of the shell 141 is also provided with a hanging ring 144, the hanging ring 144 is hung on the support ring 143 through a tension spring 145, the hanging ring 144 is sleeved on the outer side of the bottleneck of the reaction flask 142, the hanging ring 144 is detachably connected with the reaction flask 142, so that the reaction flask 142 is hung inside the shell 141, the bottleneck of the reaction flask 142 is always kept in an upward state under the action of gravity, the bottleneck of the reaction flask 142 is also provided with a gas-liquid separation membrane 1421 for sealing the bottleneck, the gas-liquid separation membrane 1421 can enable gas to pass through, liquid cannot pass through, and the.
The feeding mechanism comprises a feeding hard pipe 146, a feeding hose 147 and a feeding motor 148, the feeding hard pipe 146 is arranged outside the casing 141, one end of the feeding hose 147 is connected with one end of the feeding hard pipe 146, the other end of the feeding hose 147 extends into the casing 141 and penetrates through the gas-liquid separation membrane 1421 to the interior of the reaction flask 142, the feeding motor 148 is a linear motor, a push rod 149 is arranged on a motor shaft of the feeding motor 148, the feeding motor 148 can drive the push rod 149 to do linear motion, one end of the push rod 149 is inserted into the feeding hard pipe 146 from one end of the feeding hard pipe 146 far away from the feeding hose 147, the axis of the push rod 149 is overlapped with the axis of the feeding hard pipe 146, the feeding hard pipe 146 and the feeding hose 147 are filled with granular reactants, the feeding motor 148 can drive the push rod 149 to extrude the granular reactants in the feeding hard pipe 146 towards the feeding hose 147, thereby squeezing the granular reactants in the feed hose 147 out into the reaction flask 142. In this embodiment, the flask is used for containing hydrogen peroxide, and the feeding hard tube 146 and the feeding soft tube 147 are filled with manganese dioxide, so that the hydrogen peroxide reacts with the manganese dioxide to generate oxygen, and the oxygen can flow out of the gas-liquid separation membrane 1421 at the bottleneck of the reaction flask 142.
One end of the feeding hose 147, which is located in the reaction flask 142, is provided with a plugging sheet, one end of the plugging sheet is hinged with the feeding hose 147, a torsional spring is arranged at the hinged position, the other end of the plugging sheet is a free end, when the feeding hose 147 is in a natural state, the end of the feeding hose 147 is plugged by the plugging sheet, so that particles in the feeding hose 147 can be placed to slide out, liquid in the reaction flask 142 can be prevented from splashing inside the feeding hose 147, when the feeding motor 148 works, the pushing rod 149 pushes the particles in the feeding hard tube 146 forward, so that the particles in the feeding hose 147 are also pushed forward, the plugging sheet is squeezed open, the particles fall into the reaction flask 142, and the plugging sheet resets under the action of the torsional spring to plug the end of the feeding hose 147.
The air outlet of the shell 141 is communicated with the third joint of the three-way joint at the air inlet of the air mixing bin 13 through a pipeline, and the pipeline is provided with the gas flow control valve 131, so that oxygen generated in the reaction flask 142 can flow into the air mixing bin 13 through the pipeline, and the gas flow control valve 131 can control the oxygen amount flowing into the air mixing bin 13.
The gas flowing from the carbon dioxide absorption bin 12 into the air mixing bin 13 is mixed with the oxygen flowing from the oxygen making bin 14 into the air mixing bin 13 in the air mixing bin 13.
The air temporary storage bin 15 is used for temporary stored air, the air temporary storage bin 15 has an air inlet and an air outlet, the air outlet of the air mixing bin 13 and the air inlet of the air temporary storage bin 15 are communicated through a pipeline and are further provided with a second fan 151 on the pipeline, the second fan 151 can convey the air in the air mixing bin 13 into the air temporary storage bin 15, a macromolecular membrane 152 is further arranged in the pipeline between the air mixing bin 13 and the air temporary storage bin 15, the macromolecular membrane 152 is made of melt-blown cloth, and therefore virus, bacteria and large granular substances can be filtered.
The air outlet of the temporary air storage 15 is communicated with the air circulation air inlet 112 of the head-wearing part 11 through a pipeline, the pipeline is provided with a fourth fan 153 and an electromagnetic valve 154, and when the electromagnetic valve 154 is opened, the air in the temporary air storage 15 can be conveyed into the head-wearing part 11 under the action of the fourth fan 153.
The head-wearing part 11 can be provided with an external respiration control valve 113, the external respiration control valve 113 is used for being communicated with the fresh air storage bag through a pipeline, so that the fresh air in the fresh air storage bag can be used for supplying oxygen to a user, and the fresh air is collected and stored from an area with better air quality for use. It should be noted that the external respiration control valve 113 is in a closed state when not connected to the fresh air storage bag, when the external respiration control valve 113 is connected to the fresh air storage bag, air in the fresh air storage bag can enter the head part 11 from the external respiration control valve 113 to be breathed by the human body, and exhaled air can be exhausted from the external respiration control valve 113.
A pressure sensor 155 and a temperature sensor 156 are arranged in the pipeline between the air mixing bin 13 and the air temporary storage bin 15, the pressure sensor 155 is used for detecting the pressure of air in the pipeline, and the temperature sensor 156 is used for detecting the temperature of air flowing through the pipeline. The pressure sensor 155 may be an EVT-2000 or EVT-3000 pressure sensor available from upstream sensing technologies, Inc., of the Shanghai province, or an electronic pressure sensor of the OMEGA PX409 series. The temperature sensor 156 may be a temperature sensor 156 of OS151A-2USB-LT, OS251A-2USB-MT, OS251A-2USB-HT or the like of OMEGA corporation, or may be a GWD90 temperature sensor 156.
The air temporary storage bin 15 is internally provided with a first oxygen content sensor 157 and a carbon dioxide sensor 158, the first oxygen content sensor 157 is used for detecting the oxygen content in the air temporary storage bin 15, and the carbon dioxide sensor 158 is used for detecting the carbon dioxide content in the air temporary storage bin 15. The first oxygen content sensor 157 may employ MIX8410 electrochemical oxygen sensor of Mixsen corporation. The carbon dioxide sensor 158 may be a MIX6010 carbon dioxide sensor 158 of Mixsen corporation. Of course, a two-in-one gas detector of the Japanese research CX-II model may be used.
A second oxygen content sensor 126 may be disposed in the pipeline between the drying chamber 123 and the air mixing chamber 13, the second oxygen content sensor 126 is used for detecting the oxygen content in the air flowing into the air mixing chamber 13, and the second oxygen content sensor 126 may be a MIX8410 electrochemical oxygen sensor manufactured by Mixsen.
The controller 16 is used for receiving information and processing and analyzing the information, and the chip model of the controller 16 can adopt STC89C52 or RK 3288.
The first fan 122, the second fan 151, the third fan 124, the fourth fan 153, the electromagnetic valve 154, the pressure sensor 155, the temperature sensor 156, the first oxygen content sensor 157, the carbon dioxide sensor 158, the second oxygen content sensor 126, the gas flow control valve 131 and the feeding motor 148 are all connected with the controller 16 through signal lines, so that the controller 16 can control the operation or stop operation of each electric appliance component, the controller 16 also has an alarm function, and when the information detected by the pressure sensor 155, the temperature sensor 156, the first oxygen content sensor 157 and the carbon dioxide sensor 158 exceeds a set value range, an alarm signal is sent out to remind a user of timely carrying out treatment. Each electrical component in the present embodiment is supplied with power by a storage battery.
The totally-enclosed oxygen generation circulation safety breathing system also comprises a suspension component, the suspension component is used for wearing or suspending on the body of a user, the suspension component can be a waistband or a protective clothing and the like, and the carbon dioxide absorption bin 12, the air mixing bin 13, the oxygen generation bin 14, the air temporary storage bin 15 and the controller 16 are all arranged on the suspension component.
Of course, the carbon dioxide absorbing chamber 12, the air mixing chamber 13, the oxygen producing chamber 14, the air temporary storage chamber 15 and the controller 16 may be directly provided on the head-mounted member 11.
The working principle of the fully-closed oxygen generation cycle safe breathing system provided by the embodiment of the invention is as follows:
the head-wearing part 11 is worn on the head of a user, carbon dioxide gas generated during breathing and other gas components in the air are conveyed into the carbon dioxide absorption bin 12 under the action of the first fan 122, the carbon dioxide gas reacts in the carbon dioxide absorption bin 12 to generate oxygen, the oxygen generated in the carbon dioxide absorption bin 12 and other unabsorbed gases are conveyed into the air mixing bin 13 under the action of the third fan 124, the oxygen generated in the oxygen making bin 14 also flows into the air mixing bin 13, the gases in the air mixing bin 13 are conveyed into the air temporary storage bin 15 under the action of the second fan 151 after being mixed, meanwhile, the macromolecular membrane 152 can filter out virus and bacteria and macromolecular particles, the air flowing into the air temporary storage bin 15 is air with good quality, then under the action of the fourth fan 153, the air in the air temporary storage bin 15 is conveyed into the head-wearing part 11 for the user to breathe, and the circulation is performed, so that the air required for breathing is provided in the closed environment.
The totally-enclosed oxygen-making circulation safety breathing system can be used in places with poor air quality or incapable of supplying oxygen, such as laboratories, hospitals, cinemas, diving and the like.
Example 2
The second embodiment of the invention provides a fully-closed oxygen-making circulation safe oxygen supply method, which adopts the breathing system in the first embodiment to supply oxygen, and comprises the following steps:
s1: the gas exhaled by the human body is conveyed into the carbon dioxide absorption bin 12, and in the carbon dioxide absorption bin 12, the carbon dioxide in the gas is absorbed and reacts to generate oxygen;
carbon dioxide is absorbed by a chemical reaction, in this example, sodium peroxide is used to absorb carbon dioxide, and oxygen can also be produced.
S2: the gas treated by the carbon dioxide absorption bin 12 flows into the air mixing bin 13, the oxygen content in the gas treated by the carbon dioxide absorption bin 12 is detected, and the detection information is fed back to the controller 16;
s3: according to the result of the oxygen content detection in the step S2, the oxygen amount delivered to the air mixing bin 13 by the oxygen making bin 14 is controlled, and the oxygen content in the air mixing bin 13 is ensured to be 21-24%;
the oxygen generation chamber 14 generates oxygen in real time by chemical reaction, in this embodiment, hydrogen peroxide and manganese dioxide are used to generate oxygen.
S4: conveying the gas in the air mixing bin 13 to an air temporary storage bin 15, and then detecting the oxygen content and the carbon dioxide content; when the oxygen content and the carbon dioxide content meet the set requirements, the gas in the air temporary storage bin 15 is conveyed into the head-wearing part 11 for people to breathe; when the oxygen content and the carbon dioxide content do not meet the set requirements, if the user is in an environment where the head-wearing part 11 can be taken off, the head-wearing part 11 is taken off, and if the user is in an environment where the head-wearing part 11 cannot be taken off, the air in the air temporary storage bin 15 is continuously conveyed into the head-wearing part 11, and meanwhile, the air in the fresh air bag connected with the fresh air temporary storage bin can be used through the external respiration control valve 113.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. A totally-enclosed oxygen-making circulation safety respiratory system is characterized in that: comprises a head-wearing part, a carbon dioxide absorbing bin, an air mixing bin, an oxygen producing bin, an air temporary storage bin and a controller, wherein the head-wearing part is used for wearing the head of a user, the inside of the head-wearing part forms a closed space, the head-wearing part is provided with an air circulation outlet hole and an air circulation inlet hole, the air circulation outlet hole of the head-wearing part is communicated with the air inlet of the carbon dioxide absorbing bin through a pipeline, the pipeline is provided with a first fan, the air outlet of the carbon dioxide absorbing bin is communicated with the air inlet of the air mixing bin through a pipeline, the pipeline is provided with a drying bin, the oxygen producing bin is communicated with the air inlet of the air mixing bin through a pipeline, the air outlet of the air mixing bin is communicated with the air inlet of the air temporary storage bin through a pipeline, the air outlet of the air temporary storage bin is communicated with the air circulation inlet hole, the first fan is connected with the controller.
2. The fully closed oxygen generation cycle safety breathing system of claim 1, wherein: the system comprises a shell, a reaction flask and a feeding mechanism, wherein a support ring is arranged inside the shell, the support ring is in sliding fit with the inner wall of the shell, hanging rings are further arranged inside the shell and suspended on the support ring through tension springs, the hanging rings are sleeved on the outside of a bottle opening of the reaction flask, the bottle opening of the reaction flask is provided with a gas-liquid separation membrane for sealing the bottle opening, the feeding mechanism is arranged outside the shell, the discharge end of the feeding mechanism extends into the reaction flask and penetrates through the gas-liquid separation membrane to the inside of the reaction flask, and a gas outlet of the shell is communicated with a gas inlet of an air mixing bin through a pipeline.
3. The fully closed oxygen generation cycle safety breathing system of claim 2, wherein: feeding mechanism includes pay-off hard tube, feeding hose and pay-off motor, the pay-off hard tube set up in the outside of shell, the one end of feeding hose with the one end of pay-off hard tube is connected, the other end of feeding hose stretches into in the shell and pass the gas-liquid separation membrane extremely inside the reaction flask, be equipped with the push rod on the pay-off motor, the one end of push rod is followed keeping away from of pay-off hard tube the one end of feeding hose inserts in the pay-off hard tube, the pay-off motor with the controller is connected.
4. The fully closed oxygen generation cycle safety breathing system of claim 1, wherein: the carbon dioxide absorbs and is equipped with cellular sodium peroxide pellet in the storehouse, the carbon dioxide absorb the storehouse with pipeline outside cover between the dry storehouse is equipped with the cooling ring, the air mix storehouse with be equipped with macromolecule diaphragm and second fan in the pipeline between the air temporary storage storehouse, the second fan with the controller is connected.
5. The fully closed oxygen generation cycle safety breathing system of claim 1, wherein: the air mixing bin and the air temporary storage bin are internally provided with a pressure sensor and a temperature sensor in a pipeline, the air temporary storage bin is internally provided with a first oxygen content sensor and a carbon dioxide sensor, and the pressure sensor, the temperature sensor, the first oxygen content sensor and the carbon dioxide sensor are all connected with the controller.
6. The fully closed oxygen generation cycle safety breathing system of claim 1, wherein: a second oxygen content sensor is arranged in a pipeline between the drying bin and the air mixing bin, a gas flow control valve is arranged on a pipeline between the oxygen making bin and the air mixing bin, and the second oxygen content sensor and the gas flow control valve are both connected with the controller.
7. The fully closed oxygen generation cycle safety breathing system of claim 1, wherein: the pipeline between the drying bin and the air mixing bin is provided with a third fan, the pipeline between the air temporary storage bin and the head-wearing part is provided with a fourth fan and an electromagnetic valve, and the third fan, the fourth fan and the electromagnetic valve are all connected with the controller.
8. The fully closed oxygen generation cycle safety breathing system of claim 1, wherein: the head-mounted part is provided with an external respiration control valve which is communicated with a fresh air storage bag or external air through a pipeline.
9. The fully closed oxygen generation cycle safety breathing system of any one of claims 1-8, wherein: the head-mounted part is a mask or a helmet, the carbon dioxide absorbing bin, the air mixing bin, the oxygen producing bin, the air temporary storage bin and the controller are all arranged on the head-mounted part, or the carbon dioxide absorbing bin, the air mixing bin, the oxygen producing bin, the air temporary storage bin and the controller are all worn on the human body through hanging pieces.
10. A totally-enclosed oxygen-making cycle safe oxygen supply method is characterized in that: the method comprises the following steps:
s1: the gas exhaled by the human body is conveyed into the carbon dioxide absorption bin, and in the carbon dioxide absorption bin, the carbon dioxide in the gas is absorbed and reacts to generate oxygen;
s2: the gas treated by the carbon dioxide absorption bin flows into the air mixing bin, and the oxygen content in the gas treated by the carbon dioxide absorption bin is detected;
s3: according to the result of the oxygen content detection in the step S2, controlling the amount of oxygen delivered to the air mixing bin by the oxygen making bin, and ensuring that the oxygen content in the air mixing bin is 21-24%;
s4: conveying the gas in the air mixing bin to an air temporary storage bin, and then detecting the oxygen content and the carbon dioxide content; when the oxygen content and the carbon dioxide content meet the set requirements, the gas in the air temporary storage bin is conveyed into the head-wearing part for people to breathe; when oxygen content and carbon dioxide content do not accord with the settlement requirement, if the user is in the environment that can take off the wear part, then take off the wear part, if the user is in the environment that can not take off the wear part, then continue to carry the gas in the air temporary storage storehouse to wear part in, can use the air in the fresh air bag of being connected with it through outer antithetical couplet respiratory control valve simultaneously.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112891769A (en) * | 2021-02-10 | 2021-06-04 | 于从军 | Atmospheric particulate isolation device, isolation kit and method |
| CN114041645A (en) * | 2021-10-29 | 2022-02-15 | 煤炭科学研究总院 | Totally-enclosed protective clothing with automatic following external breathing device |
| CN114504160A (en) * | 2022-01-27 | 2022-05-17 | 浙江警察学院 | A helmet with dangerous gas alarm emergency |
| CN114984478A (en) * | 2022-07-05 | 2022-09-02 | 四川烈火胜服科技有限公司 | Internal circulation type self-oxygen-making respirator |
| CN115068852A (en) * | 2022-07-05 | 2022-09-20 | 和泰汇精密科技(南京)有限公司 | Self-circulation life support system |
| CN115671479A (en) * | 2022-10-31 | 2023-02-03 | 西安理工大学 | A ventilation device imitating the respiratory system of birds |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663618A (en) * | 1940-01-09 | 1951-12-27 | Paolo Garretto | Improvements in or relating to containers for liquids |
| GB1262456A (en) * | 1968-03-29 | 1972-02-02 | Vickers Ltd | Improved mounting structure for suspending a cylindrical tank or the like container |
| US4248397A (en) * | 1979-01-17 | 1981-02-03 | Casper Raymond C | Cup holder |
| US6041777A (en) * | 1995-12-01 | 2000-03-28 | Alliance Pharmaceutical Corp. | Methods and apparatus for closed-circuit ventilation therapy |
| CN2897874Y (en) * | 2006-04-26 | 2007-05-09 | 杨丽 | Shockproof container |
| CN201108661Y (en) * | 2007-11-27 | 2008-09-03 | 马东 | Double air bags positive-pressure oxygen respirator |
| CN201136787Y (en) * | 2007-11-27 | 2008-10-22 | 潘亚熙 | Oxygenerator for automobile life saving |
| TW201212042A (en) * | 2010-09-02 | 2012-03-16 | Atomic Energy Council | An equipment for stabilizing the vibration of the spent fuel dry storage transportable canister during the lifting process |
| CN203345418U (en) * | 2013-01-24 | 2013-12-18 | 大东集团有限公司 | Packaging box capable of being suspended and combined |
| CN103662412A (en) * | 2013-11-29 | 2014-03-26 | 上海卫星装备研究所 | Packing box suspension shock absorber and packing box utilizing same |
| CN106276806A (en) * | 2016-08-31 | 2017-01-04 | 石宝珏 | A kind of device for producing oxygen from chemical substance |
| EP3459599A1 (en) * | 2017-09-25 | 2019-03-27 | Mares S.p.A. | Rebreather system |
| RU2716915C1 (en) * | 2018-12-14 | 2020-03-17 | Общество с ограниченной ответственностью "Аквабризер" | Self-contained breathing apparatus of closed cycle for submersion under water |
-
2020
- 2020-04-14 CN CN202010292495.5A patent/CN111359068A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663618A (en) * | 1940-01-09 | 1951-12-27 | Paolo Garretto | Improvements in or relating to containers for liquids |
| GB1262456A (en) * | 1968-03-29 | 1972-02-02 | Vickers Ltd | Improved mounting structure for suspending a cylindrical tank or the like container |
| US4248397A (en) * | 1979-01-17 | 1981-02-03 | Casper Raymond C | Cup holder |
| US6041777A (en) * | 1995-12-01 | 2000-03-28 | Alliance Pharmaceutical Corp. | Methods and apparatus for closed-circuit ventilation therapy |
| CN2897874Y (en) * | 2006-04-26 | 2007-05-09 | 杨丽 | Shockproof container |
| CN201108661Y (en) * | 2007-11-27 | 2008-09-03 | 马东 | Double air bags positive-pressure oxygen respirator |
| CN201136787Y (en) * | 2007-11-27 | 2008-10-22 | 潘亚熙 | Oxygenerator for automobile life saving |
| TW201212042A (en) * | 2010-09-02 | 2012-03-16 | Atomic Energy Council | An equipment for stabilizing the vibration of the spent fuel dry storage transportable canister during the lifting process |
| CN203345418U (en) * | 2013-01-24 | 2013-12-18 | 大东集团有限公司 | Packaging box capable of being suspended and combined |
| CN103662412A (en) * | 2013-11-29 | 2014-03-26 | 上海卫星装备研究所 | Packing box suspension shock absorber and packing box utilizing same |
| CN106276806A (en) * | 2016-08-31 | 2017-01-04 | 石宝珏 | A kind of device for producing oxygen from chemical substance |
| EP3459599A1 (en) * | 2017-09-25 | 2019-03-27 | Mares S.p.A. | Rebreather system |
| RU2716915C1 (en) * | 2018-12-14 | 2020-03-17 | Общество с ограниченной ответственностью "Аквабризер" | Self-contained breathing apparatus of closed cycle for submersion under water |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112891769A (en) * | 2021-02-10 | 2021-06-04 | 于从军 | Atmospheric particulate isolation device, isolation kit and method |
| CN114041645A (en) * | 2021-10-29 | 2022-02-15 | 煤炭科学研究总院 | Totally-enclosed protective clothing with automatic following external breathing device |
| CN114504160A (en) * | 2022-01-27 | 2022-05-17 | 浙江警察学院 | A helmet with dangerous gas alarm emergency |
| CN114984478A (en) * | 2022-07-05 | 2022-09-02 | 四川烈火胜服科技有限公司 | Internal circulation type self-oxygen-making respirator |
| CN115068852A (en) * | 2022-07-05 | 2022-09-20 | 和泰汇精密科技(南京)有限公司 | Self-circulation life support system |
| CN115671479A (en) * | 2022-10-31 | 2023-02-03 | 西安理工大学 | A ventilation device imitating the respiratory system of birds |
| CN118662805A (en) * | 2024-08-12 | 2024-09-20 | 山西岸流科技有限公司 | Fire-fighting respiratory protection system and rescue equipment suitable for fire scene |
| CN118662805B (en) * | 2024-08-12 | 2025-06-27 | 山西岸流科技有限公司 | Fire breathing protection system and rescue equipment suitable for fire scenes |
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Application publication date: 20200703 |