A kind of oxygen feed system and its air accumulator
Technical field
It the utility model is related to a kind of oxygen feed system and its air accumulator.
Background technology
Inhalation device of the prior art is continuous offering oxygen way, and oxygen flow there may be on the low side or not when patient sucks
Foot;When patient exhales, due to continuous oxygen supply, the oxygen now supplied is not rapidly absorbed by a human, and oxygen can excessive waste.It is overall next
Say, existing inhalation device has following defect:
1. deficiency, is wasted when exhaling when inhaling.
2. not having human body respiration monitoring function, it is unfavorable for using with respiratory pause disease patient, or have Operative risk.
3. can not directly external other auxiliary treatment equipment, use range is restricted.
Utility model content
In view of the above-mentioned problems, the utility model aims to provide a kind of oxygen for ensureing oxygen soakage, reducing excessive waste
Feed system.
The utility model solve problem technical scheme be:A kind of oxygen feed system, including the air inlet being connected with oxygen source
Pipe, the air accumulator being connected with air inlet pipe, and the tank connected escape pipe of gas storage, pacify successively along gas outbound course on the escape pipe
Equipped with the first magnetic valve and oxygen concentration flow sensor with throttling function;
Bifurcated is communicated with branch pipe on escape pipe between the first magnetic valve and oxygen concentration flow sensor, on the branch pipe
Second solenoid valve with throttling function is installed;
Also include controller, the controller is electrically connected with the first magnetic valve, second solenoid valve, oxygen concentration flow sensor respectively
Connect;
During original state, the first magnetic valve is normally closed, second solenoid valve is normally opened;
During suction condition, the first magnetic valve is normally opened, second solenoid valve is normally closed;
During expiration state, the first magnetic valve is normally closed, second solenoid valve is normally opened;
Controller controls the first magnetic valve and second solenoid valve to switch between opening and closing.
The oxygen feed system of such scheme can be integrated in oxygen generating plant, can also independent external different oxygen supply equipments
Use.When air inlet pipe and the oxygen source of the oxygen feed system access, the first magnetic valve is in normally off, at second solenoid valve
In normally open.When user connects escape pipe oxygen uptake, the moment of human body air-breathing, air is flowed into by second solenoid valve open port
Escape pipe, by oxygen concentration flow sensor, the sensing gas micro change of oxygen concentration flow sensor, electric signal is exported to control
Device processed, after controller is determined as human body suction condition, control instruction is provided, the first magnetic valve is opened, oxygen is by and simultaneously
Second solenoid valve is closed, into oxygen supply state.The oxygen being stored in air accumulator passes through the first magnetic valve, oxygen concentration flow sensing
Device, escape pipe output end, for users to use.The duration of opening of first magnetic valve is set according to the cycle time of human body respiration, is given
Determine respiration oxygen supply time arrived after, user starts to exhale, and the gas of exhalation is drained from nose both sides, the first magnetic valve
Close, and open second solenoid valve simultaneously, come back to air-breathing detection pattern.When user's air-breathing again, oxygen concentration flow passes
Sensor senses that gas micro changes, and repeats above-mentioned breathing process.
Further, the controller is electrically connected with alarm module;When oxygen concentration flow sensor detection flows are zero, report
Alert module alarm.In other words, the oxygen feed system is also equipped with oxygen concentration and oxygen flow monitoring function, when oxygen concentration flow passes
Sensor can't detect any gas within the time of setting, in the case of electric power starting, mean that user ceases breathing, and judge
It there may be dangerous and alarm.
Further, booster pump, the booster pump are provided between oxygen concentration flow sensor and the output end of escape pipe
It is electrically connected with the controller, controller is provided with the switch for being used for controlling booster pump break-make.
The purpose of design booster pump is for independent external different oxygen supply equipments, such as various auxiliary treatment equipment(Breathing
Machine, atomizer etc.), it goes out in oxygen main line installed in oxygen generating plant.In use, controller controls the first magnetic valve to be in normal
Open state, second solenoid valve are in normally off, and switch is opened, and booster pump is started working, and oxygen concentration sensor carries out oxygen concentration
With oxygen flow monitoring function.
Further, the air accumulator include with middle cavity tank body, be arranged in tank body moveable piston, with
And spring, the spring one end is connected with inner tank wall, one end and piston connect;Piston is not connected with side and the tank wall of spring
Air storage chamber is encircled into, the air inlet pipe connects with air storage chamber.
This kind of air accumulator is automatic volume expansion structure, and different tolerance and air pressure can cause piston to be moved in different positions,
It is finally reached the balanced effect of gas output pressure.
Further, the air storage chamber interior edge tank body is axially arranged with dividing plate, and gap is left between the dividing plate and piston.Set
The gas that dividing plate enables to enter is not discharged immediately, but certain time progress turbulent flow is stopped in air storage chamber, so as to ensure
The air-flow of discharge is steady.
Meanwhile the utility model also protects a kind of air accumulator, including the tank body with middle cavity, is provided with tank body removable
Dynamic piston and spring, the spring one end is connected with inner tank wall, one end and piston connect;Piston is not connected with spring
Side is encircled into air storage chamber with tank wall, and air inlet and gas outlet are provided with the air storage chamber.
Preferably, the air storage chamber interior edge tank body is axially arranged with dividing plate, and gap is left between the dividing plate and piston.
Remarkable result of the present utility model is:
1. changing existing continuous offering oxygen way to supply oxygen for batch (-type), synchronous human body respiration, ensure soakage, reduce excessive wave
Take.
2. being integrated with human body respiration monitoring function, all oxygen inhalation therapy crowds are taken into account, reduce Operative risk.
3. the oxygen feed system can have multiple-working mode, oxygenerator can be built in or independently of oxygenerator outside, can
Actively breathed for user, it can also be used to external various auxiliary treatment equipment(Lung ventilator, atomizer etc.), expand treatment and make
Use scope.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Oxygen feed system schematic diagram when Fig. 1 is 1 original state of embodiment.
Schematic diagram when Fig. 2 is 1 user's supplementary oxygen of embodiment.
Fig. 3 is air accumulator structure chart.
Fig. 4 is the oxygen feed system schematic diagram of embodiment 2.
In figure:1- tank bodies;2- pistons;3- springs;4- air storage chambers;5- dividing plates;10- air inlet pipe;11- air accumulators;12- first
Magnetic valve;13- second solenoid valves;14- oxygen concentration flow sensors;15- controllers;16- oxygen output pipes;17- is switched;18- is pressurized
Pump;20- branch pipes.
Embodiment
Embodiment 1
As shown in Figures 1 to 3, a kind of oxygen feed system, including be connected with oxygen source air inlet pipe 10, be connected with air inlet pipe 10
Air accumulator 11, the escape pipe 16 that is connected with air accumulator 11.
The air accumulator 11 includes the tank body 1 with middle cavity, moveable piston 2 and the bullet being arranged in tank body 1
Spring 3.Described one end of spring 3 is connected with the inwall of tank body 1, one end and piston 2 connect;Piston 2 is not connected with side and the tank body of spring 3
1 wall is encircled into air storage chamber 4.The interior edge tank body 1 of air storage chamber 4 is axially arranged with dividing plate 5, between being left between the dividing plate 5 and piston 2
Gap.The air inlet pipe 10 connects with air storage chamber 4.
On the escape pipe 16 along gas outbound course be sequentially installed with the first magnetic valve 12 with throttling function and
Oxygen concentration flow sensor 14.
Bifurcated is communicated with branch pipe 20, institute on escape pipe 16 between the first magnetic valve 12 and oxygen concentration flow sensor 14
State and the second solenoid valve 13 with throttling function is installed on branch pipe 20.
Also include controller 15, the controller 15 passes with the first magnetic valve 12, second solenoid valve 13, oxygen concentration flow respectively
Sensor 14 electrically connects.
During original state, the first magnetic valve is 12 normally closed, second solenoid valve 13 is normally opened.
During suction condition, the first magnetic valve is 12 normally opened, second solenoid valve 13 is normally closed.
During expiration state, the first magnetic valve is 12 normally closed, second solenoid valve 13 is normally opened.
Controller controls the first magnetic valve 12 and second solenoid valve 13 to switch between opening and closing.
The controller 15 is electrically connected with alarm module.When the detection flows of oxygen concentration flow sensor 14 are zero, mould of alarming
Block is alarmed.
When air inlet pipe 10 and the oxygen source of the oxygen feed system access, the first magnetic valve 12 is in normally off, and second
Magnetic valve 13 is in normally open.When user connects 16 oxygen uptake of escape pipe, the moment of human body air-breathing, air is by second solenoid valve
13 open ports flow into escape pipe 16, and by oxygen concentration flow sensor 14, oxygen concentration flow sensor 14 senses gas miniflow
Amount change, exports electric signal to controller 15, after controller 15 is determined as human body suction condition, control instruction is provided, by first
Magnetic valve 12 is opened, and oxygen is by and simultaneously closing off second solenoid valve 13, into oxygen supply state.It is stored in air accumulator 11
Oxygen is by the first magnetic valve 12, oxygen concentration flow sensor 14, the output end of escape pipe 16, for users to use.First magnetic valve
12 duration of opening is set according to the cycle time of human body respiration, after the oxygen supply time of given respiration has arrived, Yong Hukai
Begin to exhale, the gas of exhalation is drained from nose both sides, and the first magnetic valve 12 is closed, and opens second solenoid valve 13 simultaneously, again
Return to air-breathing detection pattern.When user's air-breathing again, oxygen concentration flow sensor 14 senses that gas micro changes, and repeats
Above-mentioned breathing process.
When oxygen concentration flow sensor 14 can't detect any gas within the time of setting, in the situation of electric power starting
Under, mean that user ceases breathing, judgement there may be dangerous and alarm, until hand-reset or debug.Oxygen therapic patient
Respiratory rate can be tried to achieve by the time interval of adjacent air-breathing twice, for real-time display and monitoring;Oxygen supply time and apnea are set
Fixing time can manually set.
Embodiment 2
As shown in figure 4, repeating embodiment 1, but add new part so that there is the set system external different oxygen supplys to set
It is standby(Lung ventilator, atomizer etc.)Function.Concrete scheme is as follows:
Be provided with booster pump 18 between the output end of oxygen concentration flow sensor 14 and escape pipe 16, the booster pump 18 with
Controller 15 electrically connects, and controller 15 is provided with the switch 17 for being used for controlling the break-make of booster pump 18.
Booster pump 18 goes out in oxygen main line installed in oxygen generating plant.In use, controller 15 controls the first magnetic valve 12
In normally open, second solenoid valve 13 is in normally off, and switch is opened, and booster pump 18 is started working, oxygen concentration sensor
14 carry out oxygen concentration and oxygen flow monitoring function.