CN114272525B - Emergency oxygen supply device - Google Patents
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- CN114272525B CN114272525B CN202110991191.2A CN202110991191A CN114272525B CN 114272525 B CN114272525 B CN 114272525B CN 202110991191 A CN202110991191 A CN 202110991191A CN 114272525 B CN114272525 B CN 114272525B
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Abstract
The invention discloses an emergency oxygen supply device, and belongs to the technical field of emergency life-saving equipment. Including producing oxygen module, cooling humidification edulcoration module, buffer module, gaseous ratio module, gas transport module, location display module, produce oxygen module, cooling humidification edulcoration module, gaseous ratio module, gas transport module and communicate in proper order, buffer module and gaseous ratio module intercommunication. The advantages of the invention are, compared to the prior art: firstly, the oxygen production reaction rate and the oxygen production process are controllable, and the requirements of people on the oxygen supply speed under different physiological states are met; secondly, the safety and the comfort level of the gas generated by the cooling, humidifying and impurity removing module are high; thirdly, the gas proportioning module is arranged, so that the oxygen supply device can be used for emergency oxygen supply for unconscious people; finally, the invention can accurately position, is convenient for a rescuer to lock the position of the device and timely deploy rescue.
Description
Technical Field
The invention belongs to the technical field of emergency lifesaving equipment, and particularly relates to an emergency oxygen supply device.
Background
The oxygen supply device is widely used in emergency scenes such as fire and the like as an emergency device and provides oxygen for breathing for patients. The existing chemical oxygen supply devices on the market have the problems of too short oxygen supply time, uncontrollable reaction rate and process in the devices, high gas temperature and too dry, and poor experience of patients in the oxygen inhalation process; meanwhile, the existing oxygen supply device can only be used by conscious people, is not suitable for rescue of unconscious people such as coma and the like, and has a narrow application range.
Disclosure of Invention
In order to solve the above problems, a primary object of the present invention is to provide an emergency oxygen supply device, which has controllable oxygen production reaction rate and progress, and can be used for emergency oxygen supply for people in need of oxygen.
Another object of the present invention is to provide an emergency oxygen supply device, which can achieve precise positioning and rapid rescue.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides an emergency oxygen supply device, which comprises:
an oxygen generation module for generating oxygen;
the gas proportioning module is used for proportioning oxygen to form gas suitable for human breathing;
the gas delivery module is used for delivering the gas after proportioning to a breathing mask for human body use;
the oxygen production module, the gas proportioning module and the gas conveying module are communicated in sequence.
Furthermore, the oxygen supply device comprises a shell and an upper cover, wherein the oxygen production module, the cooling, humidifying and impurity removing module, the buffer module, the gas proportioning module and the positioning display module are all arranged in the shell. And a sealing strip is arranged between the shell and the upper cover, and the shell is connected with the upper cover through the sealing strip. The hinge is arranged on the sealing strip, the sealing strip is connected to the shell through the hinge, and the sealing strip is made of metal materials.
Furthermore, the shell is further provided with a strap, and the strap is convenient to carry.
Furthermore, the oxygen generation module comprises a first raw material storage chamber and a second raw material storage chamber, wherein the first raw material storage chamber is arranged above the second raw material storage chamber, and the first raw material storage chamber is communicated with the second raw material storage chamber through a pipeline.
Further, the oxygen production module is also provided with a reaction rate control structure, the reaction rate control structure comprises a burette, a motor and a controller, the burette is arranged on a pipeline between the first raw material storage chamber and the second raw material storage chamber, the motor is in driving connection with the burette, the controller is electrically connected with the motor, the device is also provided with a first pressure sensor for detecting the concentration of oxygen, and the first pressure sensor is electrically connected with the controller. In the invention, the first pressure sensor can detect the oxygen concentration in the device and feed back the data of the oxygen concentration to the controller, and the controller automatically controls the oxygen production rate of the oxygen production module according to the oxygen concentration in the device, specifically: the controller drives the motor to adjust the opening size of the burette, and then adjusts the flow rate of the raw material in the first raw material storage chamber flowing to the second raw material storage chamber, thereby controlling the reaction rate of the raw materials in the first raw material storage chamber and the second raw material storage chamber and the proceeding or stopping of the reaction, adjusting the oxygen production rate of the oxygen production module, and ensuring that the generated oxygen content meets the requirements of a human body.
Furthermore, four tapping gears are arranged on the burette. The controller realizes automatic and self-adaptive adjustment of different gears at the burette according to the oxygen concentration content condition detected by the first pressure sensor in the device, avoids the improper oxygen rate and content generated by the oxygen generation module due to the overlarge or undersize opening gap of the burette, and ensures that the generated oxygen content meets the requirements of a human body.
Furthermore, the first raw material storage chamber and the second raw material storage chamber are both made of glass materials.
Furthermore, in the invention, the acetic acid aqueous solution is stored in the first raw material storage chamber at the upper layer, the potassium superoxide tablet is stored in the second raw material storage chamber at the lower layer, the upper layer and the lower layer of space are connected through a burette type device, and the dripping rate of the acetic acid aqueous solution can be effectively controlled by the burette type design, so that the reaction rate and the proceeding or stopping of the reaction are controlled. The reaction principle equation of the oxygen supply module is as follows:
further, this apparatus of oxygen supply is still including cooling humidification edulcoration module, cooling humidification edulcoration module sets up between producing oxygen module, gaseous ratio module. The cooling humidification edulcoration module is including cooling humidification edulcoration room, cooling humidification edulcoration room and second raw materials apotheca intercommunication. And a cooling, humidifying and impurity removing material is arranged in the cooling, humidifying and impurity removing chamber. The oxygen in-process can emit a large amount of heats in the chemical production of potassium superoxide, makes the formation oxygen temperature higher, and the water content is less and contain obvious particulate matter, probably causes the harm to the user health in the use, and cooling humidification edulcoration material can be to the oxygen of production cooling humidification edulcoration processing, makes oxygen accord with human physiology demand.
Furthermore, the cooling, humidifying and impurity removing material is formed by combining a phase-change material and distilled water, the phase-change material is formed by compounding paraffin with a lower melting point and an expanded graphite heat storage material, the heat conduction performance of the paraffin is improved by utilizing the porous performance and the higher adsorption performance of the expanded graphite, the specific heat capacity of the distilled water is larger, the wettability is better, when high-temperature gas passes through the low-temperature distilled water, the distilled water and the gas exchange heat to absorb partial heat in the gas, the temperature of the gas is reduced, the humidity of the gas is increased, fine particles in the gas are wetted with the distilled water and settled, and the cleanliness of the gas is increased.
Further, a distilled water storage tank for storing distilled water is arranged in the cooling, humidifying and impurity removing module, and a one-way valve is arranged on the distilled water storage tank. Because the distilled water storage tank needs to be communicated with the medicament tank and the air bag, the mobility of water is strong, and the condition that distilled water flows back to the medicament tank and the buffer module easily occurs when the self-rescuer is turned upside down or shaken, so that the self-rescuer fails. Through rational design, during the ingenious application check valve uses the self-rescuer to distilled water, the effect of check valve makes the fluid can only flow along the water inlet, and the delivery port medium is but unable backward flow, and this system oxygen pipe is arranged in cooling humidification edulcoration module, adopts the heliciform design, increases the heat transfer area of oxygen and pipe, improves cooling efficiency.
Further, this apparatus for oxygen supply still includes the buffering module, buffering module and gaseous ratio module intercommunication. The buffer module comprises a buffer air bag, and the buffer air bag is communicated with the gas proportioning module. The buffering air bag is communicated with the oxygen storage chamber in the gas proportioning module, and the buffering air bag can store redundant oxygen so as to meet oxygen supply requirements in different scenes. When the oxygen supply amount is higher than the oxygen demand, the redundant oxygen is stored in the air bag, and when the oxygen supply amount does not meet the oxygen demand, the residual gas in the buffering air bag is used for supplementing. The buffering gasbag adopts the rubber materials who has fire-retardant antistatic function to make.
Further, the gas proportioning module comprises an oxygen storage chamber, a carbon dioxide removing chamber and a gas proportioning chamber, and the oxygen storage chamber and the carbon dioxide removing chamber are communicated with the gas proportioning chamber.
Furthermore, a volume adjusting cavity is arranged above the gas proportioning chamber and communicated with the gas proportioning chamber, an elastic buffer structure used for balancing the pressure intensity of the gas proportioning chamber is arranged below the gas proportioning chamber, and the elastic buffer structure is connected with the gas proportioning chamber. The volume of the gas proportioning room can be adjusted through compression and expansion in the volume adjusting cavity, the elastic buffering structure can utilize the elastic deformation of the elastic buffering structure to buffer the pressure change driven by the volume change of the gas proportioning room, so that the pressure change in the gas proportioning room is more gentle, the pressure of the gas proportioning room is more gentle, and the breathing experience of a patient is improved.
Furthermore, a driving motor is arranged above the volume adjusting cavity and is in driving connection with the volume adjusting cavity. The gas proportioning chamber is provided with a side plate and a bottom plate, the side plate and the bottom plate are combined and connected with the volume adjusting cavity to form the gas proportioning chamber, and the elastic buffer structure is connected with the bottom plate and can drive the bottom plate to move up and down.
Furthermore, the elastic buffer structure comprises a compression spring and a spring fixing plate, wherein one end of the compression spring is connected with the bottom plate, and the other end of the compression spring is fixed on the spring fixing plate.
Further, the volume adjusting cavity comprises a hollow corrugated hose, and the corrugated hose is made of an elastic material.
In the invention, the shell is also provided with a display screen and a control switch. When the device is applied to the unconscious crowd, the driving motor is controlled to drive downwards through the control switch, the corrugated hose is compressed and folded and contracted, the gas proportioning chamber is reduced, the pressure in the gas proportioning chamber is increased, positive pressure is formed, and gas is pressed into the body of a patient; meanwhile, the pressure in the gas proportioning chamber is increased, the elastic buffer structure is compressed, and the elastic buffer structure is opened by the compression spring to work, so that the speed of increasing the pressure in the gas proportioning chamber can be buffered; along with the extrusion of the gas in the gas proportioning chamber, the pressure in the gas proportioning chamber is reduced, the stress of the compression spring is reduced, the compression spring begins to stretch, the compression gas is proportioned to the indoor volume, the pressure is increased, and the speed of reducing the pressure of the buffer gas proportioning chamber is increased, so that the pressure change in the gas proportioning chamber is more gentle.
Further, be provided with first blow vent between gaseous ratio room and the oxygen apotheca, gaseous ratio room with remove and be provided with the second blow vent between the carbon dioxide room, the oxygen apotheca with remove and be provided with the cock between the carbon dioxide room, the cock is including the pivot, be connected with first baffle and second baffle in the pivot, the pivot can drive first baffle through rotating and seal first blow vent and drive the second baffle simultaneously and seal the second blow vent.
Further, first baffle sets up in the oxygen storage chamber, the area of first baffle is greater than the area of first blow vent, the second baffle sets up in gas proportioning room, the area of second baffle is greater than the area of second blow vent. When a human body inhales, the air in the air proportioning chamber is reduced, the pressure intensity is reduced, air source supplement exists in the oxygen chamber, the pressure is constant, the pressure difference generated by the oxygen chamber and the air proportioning chamber can drive the first baffle plate to rotate, the first baffle plate blocks the first vent hole, and the second baffle plate blocks the second vent hole; when the human body breathes, the expired gas removes the carbon dioxide room through the entering, promotes the second baffle, opens the second gas vent, and human expired gas gets into gaseous ratio room, and meanwhile, the second baffle passes through the rotation axis and drives first baffle rotation, opens first gas vent, and oxygen gets into gaseous ratio room.
Further, in the present invention, the carbon dioxide removing chamber has a volume larger than that of the oxygen storage chamber due to the presence of a chemical for removing carbon dioxide such as calcium oxide. Meanwhile, the oxygen content in the gas suitable for human breathing is about 30-35%, and the gas exhaled by the human body in the gas proportioning chamber is larger than the oxygen, so that the area of the first vent is smaller than that of the second vent.
Furthermore, the gas delivery module comprises a breathing mask, a conduit is arranged on the breathing mask and is communicated with the breathing mask, the conduit is outwards extended and is branched out of an exhalation pipe and an inhalation pipe, and the inhalation pipe is communicated with the gas proportioning chamber; the expiration pipe is communicated with the decarbonization chamber; the expiration pipe and the inspiration pipe are both provided with one-way valves. In the invention, the expiration pipe and the inspiration pipe work independently, thereby effectively avoiding the mixture of expired gas and fresh oxygen, and the breathing mask is made of high-grade rubber material, so the breathing mask is light and comfortable.
Further, the first pressure sensor is arranged in the oxygen storage chamber, the carbon dioxide removing chamber is also provided with a second pressure sensor, and the second pressure sensor is used for detecting the gas concentration in the carbon dioxide removing chamber.
Furthermore, the oxygen supply device also comprises a positioning display module which is used for positioning the specific position of a disaster victim and remotely checking the real-time data of the oxygen supply device;
the positioning display module adopts a radio frequency identification technology, can automatically identify a target object and acquire related data, has high precision, good penetrability and strong durability, can work in a severe environment, has a long reading distance, and can acquire data without contacting with a target. By means of the technology, a reader-writer remote probe is arranged at an important position needing monitoring in an application scene at a certain distance, and electromagnetic waves with certain frequency are sent outwards through an antenna to play a linkage role in a fire alarm system. When the oxygen supply device provided with the electronic tag passes through the induction area, the induction area receives the carrier signal and activates the electronic tag, and the carrier signal is transmitted to a control center in a building or a monitoring system of a pointing center outside a fire scene in a wireless mode after information demodulation and decoding processing. The device can be applied to self-rescue escape of people in case of fire or toxic and harmful gas leakage in environments such as high-rise buildings. The small program design integrates services such as position sharing, rich functions and the like. For the rescue personnel, the residual amount and the specific position of the raw materials of the device can be conveniently, quickly and timely checked, the waiting time of the trapped person for rescue is shortened to the maximum extent, and the rescue efficiency is improved.
The invention has the advantages that compared with the prior art:
firstly, the oxygen production reaction rate and the oxygen production reaction process are controllable, the oxygen production reaction can be freely controlled to be started and stopped through the oxygen production module, the requirement of people on oxygen supply speed in different physiological states is met, the waste of raw materials is effectively reduced, and the raw materials are fully utilized;
secondly, the generated gas has high safety and comfort, the cooling, humidifying and impurity removing module is arranged, a one-way valve is ingeniously used for blocking self-adjustment control by using a technology of combining a phase-change material and distilled water, the distilled water is applied to the self-rescuer, the generated oxygen is subjected to cooling, humidifying and impurity removing treatment, the gas subjected to cooling, humidifying and impurity removing meets the physiological requirement temperature of a human body, and the proper humidity for normal breathing of a user is met;
thirdly, the device can be used for emergency oxygen supply for the unconscious people, the difficulty of oxygen supply for the unconscious people in a special environment is solved by arranging the gas proportioning module and adopting a pressure difference oxygen supply technology, the folded hose and the spring are arranged in the gas proportioning chamber of the device, when the device is used for rescuing the unconscious patient in an emergency situation, the folded hose and the spring are coordinated with each other, and the internal pressure of the gas proportioning chamber is changed in a volume changing manner, so that the aim of assisting the breathing of the unconscious people is fulfilled;
finally, the device can be accurately positioned and quickly rescued, the position of the device can be determined by means of a wireless radio frequency identification technology through the positioning display module, the quality of reactants in the device is detected through a sensor in the device, the residual service time is calculated and fed back to a small terminal program, a rescuer can conveniently lock the position of the device, and rescue can be timely performed.
Drawings
Fig. 1 is a schematic diagram of a first viewing angle of the present invention.
Fig. 2 is a schematic structural diagram of a second viewing angle of the present invention.
Fig. 3 is a schematic view of the inner front of the present invention.
Fig. 4 is a schematic view of the internal back of the present invention.
FIG. 5 is a schematic diagram of the front side of the gas proportioning module of the present invention.
FIG. 6 is a schematic view of the back side of the gas proportioning module of the present invention.
Fig. 7 is a partially enlarged view of a in fig. 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to achieve the purpose, the technical scheme of the invention is as follows:
referring to fig. 1 to 7, the present invention provides an emergency oxygen supply apparatus, including:
an oxygen generation module for generating oxygen;
the cooling, humidifying and impurity removing module is used for cooling, humidifying and removing impurities of oxygen;
the buffer module is used for storing redundant oxygen;
the gas proportioning module is used for proportioning oxygen to form gas suitable for human breathing;
the gas delivery module is used for delivering the gas after proportioning to a breathing mask for human body use;
the positioning display module is used for positioning the specific position of a disaster receiver and remotely checking the real-time data of the oxygen supply device;
the oxygen production module, the cooling, humidifying and impurity removing module, the gas proportioning module and the gas conveying module are sequentially communicated, and the buffer module is communicated with the gas proportioning module.
The oxygen supply device also comprises a shell 1 and an upper cover 2, wherein the oxygen production module, the cooling, humidifying and impurity removing module, the buffer module, the gas proportioning module and the positioning display module are all arranged in the shell 1. Be provided with sealing strip 3 between casing 1 and the upper cover 2, casing 1 passes through with upper cover 2 sealing strip 3 is connected. The hinge 4 is arranged on the sealing strip 3, the sealing strip 3 is connected to the shell 1 through the hinge 4, and the sealing strip 3 is made of metal materials.
The housing 1 is further provided with a strap 5.
The oxygen generation module comprises a first raw material storage chamber 6 and a second raw material storage chamber 7, wherein the first raw material storage chamber 6 is arranged above the second raw material storage chamber 7, and the first raw material storage chamber 6 is communicated with the second raw material storage chamber 7 through a pipeline.
The oxygen production module is also provided with a reaction rate control structure, the reaction rate control structure comprises a burette 8, a motor 9 and a controller 10, the burette 8 is arranged on a pipeline between the first raw material storage chamber 6 and the second raw material storage chamber 7, the motor 9 is in driving connection with the burette 8, the controller 10 is electrically connected with the motor 9, the device is also provided with a first pressure sensor 11 for detecting the oxygen concentration, and the first pressure sensor 11 is electrically connected with the controller 10. In the present invention, the first pressure sensor 11 can detect the oxygen concentration in the device and feed back the data of the oxygen concentration to the controller 10, and the controller 10 automatically controls the oxygen production rate of the oxygen production module according to the oxygen concentration in the device, specifically: the controller 10 drives the motor 9 to adjust the opening size of the burette 8, and then adjusts the flow rate of the raw material in the first raw material storage chamber 6 flowing to the second raw material storage chamber 7, thereby controlling the reaction rate and the reaction proceeding or stopping of the raw materials in the first raw material storage chamber 6 and the second raw material storage chamber 7, adjusting the oxygen production rate of the oxygen production module, and ensuring that the generated oxygen content meets the requirements of human body.
Four tapping gears are arranged on the burette 8. The controller 10 realizes automatic and self-adaptive adjustment of different gears at the burette 8 according to the oxygen concentration content condition detected by the first pressure sensor 11 in the device, avoids the improper oxygen rate and content generated by the oxygen generation module due to the overlarge or undersize opening gap of the burette 8, and ensures that the generated oxygen content meets the requirement of a human body.
The first raw material storage chamber 6 and the second raw material storage chamber 7 are both made of glass materials.
In the invention, the first raw material storage chamber 6 at the upper layer stores acetic acid aqueous solution, the second raw material storage chamber 7 at the lower layer stores potassium superoxide tablets, the upper layer and the lower layer of space are connected by a burette 8 type device, and the burette type design can effectively control the dropping rate of the acetic acid aqueous solution, thereby controlling the reaction rate and the proceeding or stopping of the reaction. The reaction principle equation of the oxygen supply module is as follows:
further, cooling humidification edulcoration module is including cooling humidification edulcoration room 12, cooling humidification edulcoration room 12 and second raw materials storage chamber 7 intercommunication. And a cooling, humidifying and impurity-removing material is arranged in the cooling, humidifying and impurity-removing chamber 12. The oxygen in-process can emit a large amount of heats in the chemical production of potassium superoxide, makes the formation oxygen temperature higher, and the water content is less and contain obvious particulate matter, probably causes the harm to the user health in the use, and cooling humidification edulcoration material can be to the oxygen of production cooling humidification edulcoration processing, makes oxygen accord with human physiology demand.
The cooling, humidifying and impurity removing material is formed by combining a phase-change material and distilled water, the phase-change material is formed by compounding paraffin with a lower melting point and an expanded graphite heat storage material, the heat conduction performance of the paraffin is improved by utilizing the porous performance and the higher adsorption performance of the expanded graphite, the specific heat capacity of the distilled water is larger, the wettability is better, when high-temperature gas passes through the low-temperature distilled water, the distilled water and the gas exchange heat to absorb partial heat in the gas, the temperature of the gas is reduced, the gas humidity is increased at the same time, fine particles in the gas are wetted with the distilled water and settled, and the gas cleanliness is increased.
And a distilled water storage tank (not shown) for storing distilled water is arranged in the cooling, humidifying and impurity removing module, and a one-way valve is arranged on the distilled water storage tank. Because this distilled water storage tank needs to communicate with medicament jar and gasbag, and the mobility of water is stronger, and the condition that the medicament jar and buffer module were backward flowed to very easy the emergence distilled water when the self-rescuer reverses or rocks leads to the self-rescuer inefficacy. Through rational design, during ingenious application check valve uses the self-rescuer to the distilled water, the effect of check valve makes the fluid can only flow along the water inlet, and the delivery port medium is unable backward flow, and this system oxygen pipe is arranged in cooling humidification edulcoration module, adopts the heliciform design, and the heat transfer area of increase oxygen and pipe improves cooling efficiency.
The buffer module comprises a buffer air bag 13, and the buffer air bag 13 is communicated with an oxygen storage chamber 14. The buffer air bag 13 can store redundant oxygen, and oxygen supply requirements under different scenes are met. When the oxygen supply is higher than the oxygen demand, the excess oxygen is stored in the airbag, and when the oxygen supply does not meet the oxygen demand, the excess oxygen is supplemented by the residual gas in the buffer airbag 13. The buffering airbag 13 is made of a rubber material with a flame-retardant and antistatic function.
The gas proportioning module comprises an oxygen storage chamber 14, a carbon dioxide removing chamber 15 and a gas proportioning chamber 16, wherein the oxygen storage chamber 14 and the carbon dioxide removing chamber 15 are both communicated with the gas proportioning chamber 16.
A volume adjusting cavity 17 is arranged above the gas proportioning chamber 16, the volume adjusting cavity 17 is communicated with the gas proportioning chamber 16, an elastic buffer structure 18 for balancing the pressure intensity of the gas proportioning chamber 16 is arranged below the gas proportioning chamber 16, and the elastic buffer structure 18 is connected with the gas proportioning chamber 16. The volume of the gas proportioning room 16 can be adjusted through compression and expansion by the volume adjusting cavity 17, and the elastic buffering structure 18 can buffer the pressure change driven by the volume change of the gas proportioning room 16 by utilizing the elastic deformation of the elastic buffering structure 18, so that the pressure change in the gas proportioning room 16 is more gentle, the pressure of the gas proportioning room 16 is more gentle, and the breathing experience of a patient is improved.
And a driving motor 19 is arranged above the volume adjusting cavity 17, and the driving motor 19 is in driving connection with the volume adjusting cavity 17. The gas proportioning chamber 16 is provided with a side plate 161 and a bottom plate 162, the side plate 161 is combined with the bottom plate 162 and connected with the volume adjusting cavity 17 to form the gas proportioning chamber 16, and the elastic buffer structure 18 is connected with the bottom plate 162 and can drive the bottom plate 162 to move up and down.
The elastic buffer structure 18 includes a compression spring 181 and a spring fixing plate 182, wherein one end of the compression spring 181 is connected with the bottom plate 162, and the other end is fixed on the spring fixing plate 182.
The volume adjusting chamber 17 includes a hollow corrugated hose 171, and the corrugated hose 171 is made of an elastic material.
In the present invention, the housing 1 is further provided with a display 20 and a control switch 21. When the device is applied to the unconscious crowd, the control switch 21 controls the driving motor 19 to drive downwards, the corrugated hose 171 is compressed, the corrugated hose 171 is folded and contracted, the gas proportioning chamber 16 is reduced, the pressure in the gas proportioning chamber 16 is increased, positive pressure is formed, and gas is pressed into the body of a patient; meanwhile, as the pressure intensity in the gas proportioning chamber 16 is increased, the elastic buffer structure 18 is compressed and is started to work by the compression spring 181, so that the increasing speed of the pressure intensity in the gas proportioning chamber 16 can be buffered; as the gas in gas proportioning chamber 16 is pressed out, the pressure in gas proportioning chamber 16 decreases, compression spring 181 becomes less stressed and begins to stretch, compressing the volume in gas proportioning chamber 16, thereby increasing the pressure and buffering the rate at which the pressure in gas proportioning chamber 16 decreases, thereby causing the pressure change in gas proportioning chamber 16 to be more gradual.
A first vent 22 is arranged between the gas proportioning chamber 16 and the oxygen storage chamber 14, a second vent 23 is arranged between the gas proportioning chamber 16 and the carbon dioxide removing chamber 15, a cock 24 is arranged between the oxygen storage chamber 14 and the carbon dioxide removing chamber 15, the cock 24 comprises a rotating shaft 241, a first baffle 242 and a second baffle 243 are connected to the rotating shaft 241, and the rotating shaft 241 can drive the first baffle 242 to seal the first vent 22 and drive the second baffle 243 to seal the second vent 23 through rotation.
The first baffle 242 is disposed in the oxygen storage chamber 14, the area of the first baffle 242 is larger than the area of the first vent 22, the second baffle 243 is disposed in the gas proportioning chamber 16, and the area of the second baffle 243 is larger than the area of the second vent 23. When a human body inhales, the gas in the gas proportioning chamber 16 is reduced, the pressure is reduced, the gas source supplement exists in the oxygen chamber, the pressure is constant, the pressure difference generated by the oxygen chamber and the gas proportioning chamber 16 drives the first baffle 242 to rotate, the first baffle 242 blocks the first vent 22, and the second baffle 243 blocks the second vent 23; when a human body breathes, the exhaled gas enters the carbon dioxide removing chamber 15, pushes the second baffle 243, opens the second vent 23, and then enters the gas proportioning chamber 16, and meanwhile, the second baffle 243 drives the first baffle 242 to rotate through the rotating shaft 241, so that the first vent is opened, and oxygen enters the gas proportioning chamber 16.
In the present invention, the carbon dioxide removing chamber 15 has a volume larger than that of the oxygen storage chamber 14 due to the presence of a chemical for removing carbon dioxide such as calcium oxide. Meanwhile, the oxygen content in the gas suitable for human breathing is about 30-35%, and the amount of the gas exhaled by the human body in the gas proportioning chamber 16 is larger than that of the oxygen, so that the area of the first vent 22 is smaller than that of the second vent 23.
The gas delivery module comprises a breathing mask 25, a conduit is arranged on the breathing mask 25, the conduit is extended outwards and is branched into an inhalation tube 26 and an exhalation tube 27, and the inhalation tube 26 is communicated with the gas proportioning chamber 16; the exhalation tube 27 is in communication with the decarbonation chamber 15; the exhalation tube 27 and the inhalation tube 26 are both provided with one-way valves. In the invention, the exhaling pipe 27 and the inhaling pipe 26 work independently, thereby effectively avoiding the mixture of exhaling gas and fresh oxygen, and the breathing mask 25 is made of high-grade rubber material, so that the breathing mask is light and comfortable.
The first pressure sensor 11 is arranged in the oxygen storage chamber 14, and the decarbonation chamber 15 is further provided with a second pressure sensor 28, wherein the second pressure sensor 28 is used for detecting the gas concentration in the decarbonation chamber 15.
The positioning display module adopts a radio frequency identification technology, can automatically identify a target object and acquire related data, has high precision, good penetrability and strong durability, can work in a severe environment, has a long reading distance, and can acquire data without contacting with a target. By means of the technology, a reader-writer remote probe is arranged at an important position needing monitoring in an application scene at a certain distance, and transmits electromagnetic waves with a certain frequency outwards through an antenna to play a linkage role in a fire alarm system. When the oxygen supply device provided with the electronic tag passes through the induction area, the induction area receives the carrier signal and activates the electronic tag, and the carrier signal is transmitted to a control center in a building or a monitoring system of a fire scene external directing center in a wireless mode after information demodulation and decoding processing. The device can be applied to self-rescue escape of people in case of fire or toxic and harmful gas leakage in environments such as high-rise buildings. The small program design integrates services such as position sharing, rich functions and the like. For the rescue personnel, the residual amount and the specific position of the raw materials of the device can be conveniently, quickly and timely checked, the time for waiting for rescue of trapped people is shortened to the maximum extent, and the rescue efficiency is improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An emergency oxygen supply device is characterized by comprising an oxygen production module, a gas proportioning module and a gas delivery module, wherein the oxygen production module, the gas proportioning module and the gas delivery module are sequentially communicated;
the oxygen generation module comprises a first raw material storage chamber and a second raw material storage chamber, wherein the first raw material storage chamber is arranged above the second raw material storage chamber, and the first raw material storage chamber is communicated with the second raw material storage chamber through a pipeline; the oxygen production module is also provided with a reaction rate control structure, the reaction rate control structure comprises a burette, a motor and a controller, the burette is arranged on a pipeline between the first raw material storage chamber and the second raw material storage chamber, the motor is in driving connection with the burette, the controller is electrically connected with the motor, the device is also provided with a first pressure sensor for detecting the concentration of oxygen, and the first pressure sensor is electrically connected with the controller;
the gas proportioning module comprises an oxygen storage chamber, a carbon dioxide removing chamber and a gas proportioning chamber, and the oxygen storage chamber and the carbon dioxide removing chamber are both communicated with the gas proportioning chamber;
a volume adjusting cavity is arranged above the gas proportioning chamber and is communicated with the gas proportioning chamber, an elastic buffer structure used for balancing the pressure intensity of the gas proportioning chamber is arranged below the gas proportioning chamber, and the elastic buffer structure is connected with the gas proportioning chamber;
a driving motor is arranged above the volume adjusting cavity and is in driving connection with the volume adjusting cavity, the gas proportioning chamber is provided with a side plate and a bottom plate, the side plate and the bottom plate are combined and connected with the volume adjusting cavity to form the gas proportioning chamber, and the elastic buffer structure is connected with the bottom plate and can drive the bottom plate to move up and down; the elastic buffer structure comprises a compression spring and a spring fixing plate, wherein one end of the compression spring is connected with the bottom plate, and the other end of the compression spring is fixed on the spring fixing plate;
a first vent hole is formed between the gas proportioning chamber and the oxygen storage chamber, a second vent hole is formed between the gas proportioning chamber and the carbon dioxide removing chamber, a cock is arranged between the oxygen storage chamber and the carbon dioxide removing chamber, the cock comprises a rotating shaft, a first baffle and a second baffle are connected to the rotating shaft, and the rotating shaft can drive the first baffle to seal the first vent hole and drive the second baffle to seal the second vent hole through rotation;
the gas conveying module comprises a breathing mask, a conduit is arranged on the breathing mask, the conduit is outwards extended and branched into an air suction pipe and an air expiration pipe, and one end of the air suction pipe is communicated with the gas proportioning chamber; one end of the expiration pipe is communicated with the carbon dioxide removing chamber; the expiration pipe and the inspiration pipe are both provided with one-way valves.
2. The emergency oxygen supply device according to claim 1, further comprising a cooling, humidifying and impurity removing module, wherein the cooling, humidifying and impurity removing module is arranged between the oxygen production module and the gas proportioning module; the cooling humidification edulcoration module is including cooling humidification edulcoration room, cooling humidification edulcoration room and second raw materials apotheca intercommunication, be provided with cooling humidification edulcoration material in the cooling humidification edulcoration room.
3. The emergency oxygen supply device according to claim 2, wherein the temperature-reducing humidifying impurity-removing material is formed by combining a phase-change material and distilled water, the phase-change material is formed by compounding paraffin and an expanded graphite heat storage material, a distilled water storage tank for storing distilled water is arranged in the temperature-reducing humidifying impurity-removing module, and a check valve is arranged on the distilled water storage tank.
4. The emergency oxygen supply device of claim 3, further comprising a buffer module, wherein the buffer module comprises a buffer airbag, and the buffer airbag is communicated with the gas proportioning module.
5. The emergency oxygen supply apparatus of claim 1, further comprising a positioning display module.
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| CN202110991191.2A CN114272525B (en) | 2021-08-26 | 2021-08-26 | Emergency oxygen supply device |
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| CN202110991191.2A CN114272525B (en) | 2021-08-26 | 2021-08-26 | Emergency oxygen supply device |
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| CN114917498A (en) * | 2022-04-26 | 2022-08-19 | 北京科技大学 | Individual portable oxygen candle oxygen supply device for plateau construction tunnel |
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