CN106379863B - A kind of medical first aid equipment direct-furnish oxygen all-in-one machine and its straight method for supplying oxygen - Google Patents
A kind of medical first aid equipment direct-furnish oxygen all-in-one machine and its straight method for supplying oxygen Download PDFInfo
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- CN106379863B CN106379863B CN201611010903.3A CN201611010903A CN106379863B CN 106379863 B CN106379863 B CN 106379863B CN 201611010903 A CN201611010903 A CN 201611010903A CN 106379863 B CN106379863 B CN 106379863B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
- C01B13/027—Zeolites
-
- 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; 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. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
-
- 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. mouth-to-mouth respiration; 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
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0208—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
Abstract
The present invention provides a kind of medical first aid equipment direct-furnish oxygen all-in-one machine and its straight method for supplying oxygen, the all-in-one machine includes integrated system oxygen supply unit and the group vanning for assembling integrated system oxygen supply unit, the integrated system oxygen supply unit includes the air compressor machine component being sequentially communicated, radiating subassembly, air cushion tank, absorbent module, oxygen surge tank, oxygen pressing component and oxygen storage tank, and the oxygen in oxygen storage tank directly uses after a ultimate filter, flowmeter and flow control valve for the medical first aid equipment.The present invention does raw material with air, realizes the uninterrupted oxygen oxygen supply processed in scene, directly drives medical first aid equipment；Compact-sized, integrated system oxygen supply unit is packaged in using push-pull fashion in babinet, carrying easy to repair；By the way that dynamic sealing and static seal structure is arranged, the leakage of oxygen compression pressurization, the safety of enhancing oxygen compression and functional reliability are prevented；By increasing absorption type oxygen cache mechanism in entire technical process, work smoothness and safety-type are ensure that.
Description
Technical field
The invention belongs to oxygen processed, oxygen supply technical field of medical equipment, and in particular to a kind of compact-sized, easy to maintenance, work
Make reliably realize scene oxygen processed, oxygen supply free of discontinuities and the direct-furnish oxygen one for directly driving the medical first aid equipments such as lung ventilator
Machine and its straight method for supplying oxygen.
Background technology
Conventional ventilators, the Anesthesia machine used in operation at present is all that oxygen cylinder is used to supply oxygen, especially field
Medical treatment situation, oxygen amount used for respirators is larger, and oxygen cylinder storage oxygen amount is limited, needs to be replaced frequently gas cylinder supplemental oxygen, this is just needed
Want oxygen source guarantee that cannot interrupt, it is more demanding to transport power, under wild environment, once oxygen supply cannot be guaranteed, can not just it carry out
Operation；Oxygen cylinder storage oxygen pressure is higher (usually completely bottle oxygen pressure is 12MPa or so), belongs to pressure vessel, stores and there is safety
Risk.
Authorization Notice No. be the utility model of CN2687099Y disclose it is a kind of integrate oxygen processed, oxygen supply and storage oxygen oxygen processed
Complete set of equipments comprising molecular sieve oxygen generation host, the oxygen main frame processed are connected by output channel with buffering filter, this is buffered
The outlet of filter is then connected by oxygen supercharger with the oxygen container of oxygen supply, although the equipment can realize continuous uninterrupted system
Oxygen, storage oxygen, but have the following disadvantages：(1) two oxygen main frame processed oxygen-producing amounts of the equipment are 11.5m altogether3/ d (about 8L/min) produces oxygen
Amount cannot directly meet Use of respirator (commonly required amount of oxygen be 10L/min), need work ahead, store a certain amount of oxygen in
In oxygen container；(2) it since oxygen main frame processed oxygen-producing amount is relatively low, is unable to plug and play and meets Use of respirator in real time, therefore, store up oxygen
Tank volume must design large volume, lay in certain oxygen in advance and meet oxygen requirement used for respirators, larger Oxygen storage container exists
Fixed medical and health organization's use is suitable, but store up the movement after oxygen, carry it is inconvenient, there is also certain danger,
Therefore, the utility model of CN2687099Y is not appropriate for the place carried at any time in field use；(3) no pair in CN2687099Y
It realizes that operation principle, the course of work of oxygen supercharger etc. of oxygen supercharging are described in detail, does not propose clearly to solve
The concrete measure and method of critical issue (such as oxygen leakage loss etc.) in low pressure low discharge oxygen source pressurization.
Invention content
The purpose of the present invention is to solve the above problems, provide a kind of compact-sized, easy to maintenance, reliable operation energy
It is enough to realize scene oxygen processed, oxygen supply free of discontinuities and the direct-furnish oxygen all-in-one machine for directly driving the medical first aid equipments such as lung ventilator.
The above-mentioned purpose of the present invention is realized by following technical scheme：
A kind of medical first aid equipment direct-furnish oxygen all-in-one machine, including integrated system supply oxygen unit (04) and for assembling integrated system
The group vanning (00) of unit (04) is supplied oxygen, the integrated system oxygen supply unit (04) includes the air compressor machine component of gas circuit connection successively
(001), radiating subassembly (002), air cushion tank (6), absorbent module (003), oxygen surge tank (12), oxygen pressing component
(004) and oxygen storage tank (18), the oxygen in oxygen storage tank (18) is through a ultimate filter (21), flow control valve (25) and stream
Gauge (26) is directly used for the medical first aid equipment afterwards.
For above-mentioned medical first aid equipment in direct-furnish oxygen all-in-one machine, described group of vanning (00) includes the babinet of one end open
(01), panel (02) and group are shelved (03), and panel (02) is fixed on the outer end that group shelves (03), are integrated system oxygen supply unit (04) and are pacified
(03) inside is shelved loaded on group, the setting of babinet (01) bottom shelves the sliding rail (011) that the guide post (031) of (03) matches with group,
Group is shelved (03) and is slid into babinet along sliding rail (011) from the opening of babinet (01), and panel (02) is close by the opening of babinet (01)
Envelope.
For above-mentioned medical first aid equipment in direct-furnish oxygen all-in-one machine, the air compressor machine component (001) includes air intake filter (1)
With air compressor machine (2), the air after air intake filter (1) purified treatment is compressed in air compressor machine (2).
For above-mentioned medical first aid equipment in direct-furnish oxygen all-in-one machine, the air cushion tank (6) is equipped with the first safety valve (7)
With first pressure gauge (8)；The absorbent module (003) includes gas distributing valve (10), adsorbent bed (11) and denitrogen silencer
(9), the inlet end of gas distributing valve (10) is connected with the air cushion tank (6), outlet side and adsorbent bed (11) and denitrogen
Silencer (9) is connected.
For above-mentioned medical first aid equipment in direct-furnish oxygen all-in-one machine, the adsorbent bed (11) is cylinder-like structure, interior equipped with boiling
Stone adsorbent of molecular sieve；The adsorbent bed (11) be equipped with it is multiple, the oxygen generating port end of adsorbent bed is connected to oxygen by pipeline respectively
The air inlet of surge tank (12).
For above-mentioned medical first aid equipment in direct-furnish oxygen all-in-one machine, the oxygen storage tank (18) is equipped with third pressure gauge (19)
With third safety valve (20), inside be filled with the molecular sieve of adsorption of oxygen.
For above-mentioned medical first aid equipment in direct-furnish oxygen all-in-one machine, the oxygen pressing component (004) includes pressure-regulating valve
(15), oxygen pressing pump (16) and the oxygen pressing pump cooling fan (17) for pumping (16) cooling down to oxygen pressing, oxygen
Oxygen in gas surge tank (12) enters through pressure-regulating valve (15) in oxygen pressing pump (16), and oxygen pressing pumps the outlet of (16)
Connect the air inlet of oxygen storage tank (18).
For above-mentioned medical first aid equipment in direct-furnish oxygen all-in-one machine, the oxygen pressing pump (16) is swing piston type compression knot
Structure, including cylinder (100), the piston (104) that is moved back and forth in cylinder and the motor (161) that power is provided for piston, electricity
The motor shaft (164) of machine (161) is connected by connecting rod with piston (104)；Piston ring (105) is arranged on piston (104), one is bent
Axle box (162) is set to below cylinder (100), and an end cap (101) setting is in the top side of motor shaft (164) and and crankcase
Babinet is fitted close, and motor shaft (164), piston (104) and piston ring (105) is made to be placed in closed space；Crankcase (162)
Seal groove in the sealing element (163) that is formed of filled polytetrafluoroethylene washer and fluorubber "O"-ring, motor shaft (164) with it is close
Sealing (163) is in contact to form dynamic sealing；Fluorubber "O"-ring and polytetrafluoro are filled between cylinder (100) and crankcase (162)
The first sealing ring (102) that ethylene washer is formed is filled fluorubber "O"-ring and is gathered between crankcase (162) and end cap (101)
The second sealing ring (103) that tetrafluoroethene washer is formed forms static seal.
Above-mentioned medical first aid equipment is in direct-furnish oxygen all-in-one machine, between ultimate filter (21) and flow control valve (25)
Oxygen determination solenoid valve (22), oxygen concentration sensor (23) and pressure sensor (24) are additionally provided on pipeline.
The present invention also provides a kind of straight method for supplying oxygen of medical first aid equipment, this method is used using above-mentioned medical first aid equipment
Direct-furnish oxygen all-in-one machine carries out oxygen processed and oxygen supply, includes the following steps：
Step 1：Raw air is filtered, compresses by air compressor machine component (001), and compressed air is through heat dissipation group
Part (002) is cooling, and the cooling water generated is discharged through triple valve (5)；
Step 2：Air after cooling enters the adsorbent bed (11) of absorbent module (003) into promoting the circulation of qi through air cushion tank (6)
Body detaches, and the nitrogen that adsorbent bed (11) desorbs is discharged by denitrogen silencer (9), and isolated oxygen enters oxygen buffering
Tank (12)；
Step 3：Periodically variable oxygen is presented in instability of flow that oxygen surge tank (12) exports adsorbent bed (11)
Gas is converted into pressure stability, the oxygen of stability of flow is input to the pump of the oxygen pressing in oxygen pressing component (004) (16) and carries out
Oxygen is pressurized；
Step 4：Oxygen after supercharged enters oxygen storage tank (18), and the oxygen in oxygen storage tank (18) is vented from its oxygen
Mouth directly uses after ultimate filter (21), flow control valve (25), flowmeter (26) for medical first aid equipments such as lung ventilators.
Above-mentioned technical proposal is used, the solution have the advantages that：The present invention raw material done using air, it can be achieved that scene not
Interruption oxygen oxygen supply processed, can directly drive the medical first aid equipments such as lung ventilator instead of bottled oxygen, carry out scene oxygen supply free of discontinuities and ensure,
Plug and play, oxygen-producing amount can meet requirement so that medical treatment mechanism, which has, certain promptly uses oxygen supportability；Structure
Compact, integrated system oxygen supply unit is packaged in using push-pull fashion in babinet, easy to repair, using miniaturization oxygenerating technology and module
Change design so that oxygen supercharging device minimizes, easy to carry, is suitable for field place and uses；By the way that dynamic sealing and quiet is arranged
Sealing structure solves the leakage problem of oxygen compression pressurization, enhances safety and the functional reliability of oxygen compression；
By increasing absorption type oxygen cache mechanism in entire technical process, work smoothness and safety-type are ensure that.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is a group structural schematic diagram for vanning；
Fig. 3 is that integrated system oxygen supply unit is assembled into the structural schematic diagram after group is shelved；
Fig. 4 is the process flow chart of the direct-furnish oxygen all-in-one machine of the present invention；
Fig. 5 is the structural schematic diagram of oxygen pressing pump；
Fig. 6 is the dynamic sealing schematic diagram of oxygen pressing pump.
Reference numeral is expressed as in figure：
1：Air intake filter；2：Air compressor machine；3：Radiator；4：Radiator cooling fan；5：Triple valve；6：Air cushion
Tank；7：First safety valve；8：First pressure gauge；9：Denitrogen silencer；10：Gas distributing valve；11：Adsorbent bed；12：Oxygen buffers
Tank；13：Second pressure gauge；14：Second safety valve；15：Pressure-regulating valve；16：Oxygen pressing pumps；17：Oxygen pressing pump cooling
Fan；18：Oxygen storage tank；19：Third pressure gauge；20：Third safety valve；21：Ultimate filter；22：Oxygen determination solenoid valve；23：
Oxygen concentration sensor；24：Pressure sensor；25：Flow control valve；26：Flowmeter；
161：Motor, 162：Crankcase, 163：Sealing element, 164：Motor shaft；
001：Air compressor machine component；002：Radiating subassembly；003：Absorbent module；004：Oxygen pressing component；
00：Group vanning；
01：Babinet, 011：Sliding rail, 012：Fixed hole；
02：Panel, 021：Liquid crystal display, 022：Louvered air outlet, 023：Oxygen outlet, 024：Knob, 025：Power supply
Switch, 026：Power interface, 027：Mounting hole；
03：Group is shelved, and 031：Guide post, 032：Fixing screwed hole；
04：Integrated system oxygen supply unit；
100：Cylinder, 101：End cap, 102：First sealing ring, 103：Second sealing ring, 104：Piston, 105：Piston ring.
Specific implementation mode
The direct-furnish oxygen all-in-one machine oxygen-producing amount of the present invention is 10L/min, can meet lung ventilator, Anesthesia machine under normal running conditions
The use of equal medical first aid equipments, need not store a certain amount of oxygen in advance；The direct-furnish oxygen all-in-one machine of the present invention uses case instrument
Integrated structure design integrates oxygen processed, supercharging, oxygen supply function, and small, light-weight, babinet uses rotation molding technology,
It is particularly suitable for field to use.
Below in conjunction with the drawings and specific embodiments, the medical first aid equipment direct-furnish oxygen all-in-one machine of the present invention is carried out specifically
It is bright.
Group vanning
Fig. 1, Fig. 2 and Fig. 3 are the topology example of the medical first aid equipment direct-furnish oxygen all-in-one machine of the present invention.As shown in Figure 1, should
Direct-furnish oxygen all-in-one machine is case instrument integral structure, including integrates system oxygen supply unit 04 and supply oxygen unit 04 for assembling integrated system
Group vanning 00, as shown in Fig. 2, group vanning 00 shelves 03 including babinet 01, panel 02 and group, wherein：
Babinet 01 is the square box of one end open, and bottom inner surface is arranged with two sliding rails 011, left and right sides
It is respectively provided with a fixed hole 012.
It is square rack that group, which shelves 03, and integrated system oxygen supply unit 04 is installed on inside frame body, there are two which sets
Two sliding rails 011 of guide post 031, two guide posts 031 and babinet 01 match, and guide post 031 is embedded in sliding rail 011, can be by group
03 propulsion release is shelved, it is easy to repair；Group shelves 03 or so frame body and respectively offers fixing screwed hole 032, when group shelves 03 propulsion
After babinet 01, group is shelved 03 fixing screwed hole 032 and is overlapped with the fixed hole 012 of babinet 01, and a screw rod is screwed in, can be by case
Body 01 shelves 03 fixation with group.
Panel 02 is the plate body to match with 01 opening shape of babinet, which is fixed on the outer end that group shelves 03, works as group
After shelving 03 push-in babinet 01, panel 02 can seal the opening of babinet 01；The outer surface of panel 02 is equipped with liquid crystal display
021, louvered air outlet 022, oxygen outlet 023, knob 024, power switch 025, power interface 026 and flow control valve 25
Mounting hole 027, wherein liquid crystal display 021 passes through PLC controller and pressure sensor 24, flowmeter 26, oxygen concentration sense
Devices 23 etc. connect, for showing oxygen pressure, production oxygen flow, oxygen concentration etc.；Louvered air outlet 022 be provided with it is multiple, for whole
The heat dissipation of a integrated system oxygen supply unit 04, ensures functional reliability；Oxygen outlet 023 connects with flow control valve 25, flowmeter 26
It connects, which may be coupled directly to the medical first aid equipments such as lung ventilator；Knob 024 is arranged in the both sides of panel 02 there are two setting,
Pulling group is facilitated to shelve 03；Power interface 026 is used for external 220V AC powers, and by PLC controller and air compressor machine 2, dissipate
Hot device 3, oxygen pressing pump 16, pressure sensor 24, gas distributing valve 10, oxygen determination solenoid valve 22 and other solenoid valves are (referring to figure
Etc. 4) components connection, power switch 025 are series between power interface and PLC controller, the break-make for controlling power supply.
Integrated system oxygen supply unit
Integrated system oxygen supply unit 04 is installed on group and shelves inside 03, and is encapsulated into babinet 01 and is assembled into an entirety,
In Fig. 3 and embodiment shown in Fig. 4, it includes the air compressor machine component 001 that gas circuit is connected to successively, heat dissipation group to integrate system oxygen supply unit 04
Part 002, air cushion tank 6, absorbent module 003, oxygen surge tank 12, oxygen pressing component 004 and oxygen storage tank 18, wherein：
Air compressor machine component 001 include air intake filter 1 and air compressor machine 2, air intake filter 1 be filled with compound glass fiber or
The sponge materials porous filter material such as PP material fibers or PU, PE, for the purified treatment of air, when air inlet, surrounding air
Enter air compressor machine 2 after filtering material filters, the dust of the filtering material filtering different-grain diameter size of different filtering accuracies passes through
Staged filters, and reduces filtration resistance, improves filtering accuracy, and final realize removes the dust etc. that diameter in air is more than 0.1 μm
The purpose of solid impurity, and the structure types such as pore channels, expansion chamber is used to carry out noise reduction to reduce induction noise；Air compressor machine
2 compression for air after purifying makes the air into absorbent module 003 meet certain pressure, to realize in adsorbent bed 11
The pressurized adsorbent of molecular sieve.
Radiating subassembly 002 for reducing compressed air temperature and remove the portion of water in air, including radiator
3, radiator cooling fan 4 and corresponding attachment, radiator 3 are the pipe fitting that the shapes such as U-shaped, snakelike are bent by copper tube,
And aluminum is installed outside pipe and is radiated thin slice, to increase specific heat load, at the same by heat dissipation thin slice installation radiator cooling fan 4 with
Reinforce heat convection, or radiator cooling fan 4 is directly installed on 6 side of air cushion tank, to keep compressed air cold
But；Triple valve 5 is connected to radiator 3 and air cushion tank 6, and another channel of triple valve 5 connects drainpipe, cold for air to be discharged
But the water generated.
Air cushion tank 6 is generally aluminium or other metal materials, is made for ensureing that air draught pressure is stablized relatively
One end of drum forms, cylinder has air inlet, the other end to have exhaust outlet, air cushion tank to be equipped with the first safety valve 7 and first
Pressure gauge 8 can observe 6 internal gas pressure of air cushion tank at any time, when being more than setting pressure, pass through 7 pressure release of the first safety valve.
6 size of air cushion tank is to determine that volume range is by factors such as the air consumption per minute of absorbent module 003, absorption frequencies
0.1L~5L.
Absorbent module 003 includes gas distributing valve 10, adsorbent bed 11, denitrogen silencer 9 and corresponding pipeline, wherein
Gas distributing valve 10 can be two position four-way solenoid valves in the present embodiment, and inlet end is connected with air cushion tank 6, outlet side difference
It is connected with A adsorbent beds, B adsorbent beds and denitrogen silencer 9, the air in air cushion tank 6 is divided by gas distributing valve 10
With adsorbent bed 11 is entered, the nitrogen that adsorbent bed 11 desorbs is discharged through gas distributing valve 10 by denitrogen silencer 9, gas distribution
Valve 10 be used for disengaging absorption bed gas be allocated, gas distributing valve 10 can also by existing other forms mechanical valve or
Other mechanisms realize, however it is not limited to two position four-way solenoid valves；In the embodiment, there are two adsorbent bed 11 is set, respectively A adsorbent beds
With B adsorbent beds, adsorbent bed 11 is generally cylinder-like structure, is inside filled with zeolite adsorbent, such as 5A, 13X, lithium type etc.
The oxygen generating port end of zeolite molecular sieve, A adsorbent beds and B adsorbent beds is connected to the air inlet of oxygen surge tank 12 by pipeline respectively.
Adsorbent bed 11 uses more adsorbent bed molecular sieve pressure-variable adsorption (PSA) oxygenerating technologies to prepare oxygen concentration as 93% ± 3%
Oxygen.PSA oxygen is using molecular sieve as adsorbent, and the air in nature is raw material, using molecular sieve in different pressures item
To the variation of nitrogen adsorption capacity under part, detaches and oxygen is made.Under room temperature pressurized conditions, adsorption capacity of the zeolite molecular sieve to nitrogen
Greatly, small to the adsorption capacity of oxygen, to which the nitrogen in air is adsorbed by molecular sieve, oxygen passes through molecular sieve, in lower pressure
Under, molecular sieve reduces the adsorption capacity of nitrogen so that the nitrogen of absorption desorbs, and by pressurized adsorbent depressurization desorption, reaches
To the purpose of continuous oxygen producing.
Two adsorbent bed molecular sieve (A, B) omnibus control system process cycles time sequential routines are as shown in table 1.With A adsorbent bed works
For skill process, technical process is as follows：Pressurising/adsorption process first, i.e. unstripped gas enter A adsorbent beds and carry out pressurising, molecule
Sieve absorption nitrogen output oxygen；Followed by pressure equalizing, i.e. A adsorbent beds press B adsorbent beds, make A adsorbent beds decompression row
The gas gone out is utilized effectively；Followed by emptying process, i.e. A adsorbent beds depressurization desorption, the nitrogen discharge of absorption, molecular sieve obtain
To regeneration, to realize recycling for molecular sieve；Followed by flushing process, that is, utilize a part of product of B adsorbent beds separation
Gas is rinsed the A adsorbent beds of emptying, removes the residual nitrogen in adsorbent, improves the power of regeneration of molecular sieve, enhancing pair
The absorption property of nitrogen；It is finally pressure equalizing, i.e., B adsorbent beds are pressed with A adsorbent beds, make the decompression discharge of B adsorbent beds
Gas is utilized effectively.
1 liang of adsorbent bed PSA cycle time sequential routine of table
It in addition, the number of adsorbent bed is not limited to two, should be flexibly arranged according to actual demand, three or three can be set as
More than, the specific embodiment in adsorbent bed is optimized with reference to above-mentioned two adsorbent bed.
Oxygen surge tank 12 is generally aluminium or other metal materials, drum forms is made, there is air inlet in one end of cylinder, separately
One end has exhaust outlet, oxygen surge tank 12 to be equipped with second pressure gauge 13 and the second safety valve 14, can observe internal oxygen at any time
Pressure passes through 14 pressure release of the second safety valve when internal oxygen is more than setting pressure.
The effect of oxygen surge tank 12 is the continuous supply that adsorbent bed is periodically produced to oxygen process and is converted into oxygen, is ensured
Supply oxygen pressure stabilization, the stability of flow of oxygen pressing pump.It is sustainable cyclic process, absorption that pressure-variable adsorption, which produces oxygen process,
The oxygen flow of 11 output of bed is unstable, and cyclically-varying is presented, and the normal work of oxygen pressing pump 16 needs a stabilization
Air inlet, by increasing oxygen surge tank 12 between so that supply oxygen pressing pump 16 oxygen pressure, flow it is steady
It is fixed, ensure its normal operation.The size of oxygen surge tank 12 is to pump 16 working frequency, compressed oxygen per minute by oxygen pressing
The factors such as tolerance determine, minimum volume need to be more than oxygen pressing pump 16 per second compressions amount of oxygen, volume range be 0.1L~
5L。
Oxygen pressing component 004 includes that pressure-regulating valve 15, oxygen pressing pump 16 and oxygen pressing pump cooling fan 17, oxygen
Oxygen in gas surge tank 12 enters through pressure-regulating valve 15 in oxygen pressing pump 16, and pressure-regulating valve 15 is slow for adjusting oxygen
The oxygen pressure for rushing the discharge of tank 12, admission pressure requirement when it being made to meet oxygen pressing 16 work of pump.Oxygen pressing pump cooling
Fan 17 is used to carry out cooling down to oxygen pressing pump 16.
During the work time, the oxygen compression speed of oxygen pressing pump 16 must be suitable with the oxygen-producing amount of absorbent module 003
Or it is smaller, compression speed, which is more than production oxygen rate, can make 003 oxygen exhaust of absorbent module generate negative pressure, accelerate from absorbent module 003
" suction " oxygen causes 11 pressure of adsorbent bed of absorbent module 003 to decline, and also fully absorption is not just gone out by " suction " air of entrance,
To produce oxygen concentration reduction, if compression speed is too small so that final oxygen-supplying amount is insufficient, cannot be satisfied Use of respirator, also make
003 oxygen exhaust of absorbent module generates larger positive pressure, and oxygen-producing amount accordingly declines, and oxygen generation efficiency reduces.
As shown in figure 5, oxygen pressing pump 16 is swing piston type pressure texture, including cylinder 100, back and forth transported in cylinder
Dynamic piston 104 and the motor 161 that power is provided for piston, the motor shaft 164 of motor 161 pass through connecting rod etc. and piston 104
It is connected, for driving piston in cylinder motion, realizes gas compression；Cylinder 100 is equipped with intake valve and air bleeding valve, with piston
It moves back and forth and is turned on and off, realize entrance and the supercharging discharge of oxygen.Since the compressed media in cylinder 100 is oxygen,
The leakproofness of oxygen pressurization, safety are particularly important.Piston ring 105 is arranged on the groove of piston 104, with piston
It moves up and down, improves the leakproofness between piston and cylinder, oxygen passes through piston 104 during preventing 104 compressed oxygen of piston
With the gap leakage of cylinder wall, crankcase 162 is set to 100 lower section of cylinder, and end cap 101 is arranged on the top of motor shaft 164 one
Side is fitted close with crankcase body, motor shaft 164, piston 104 and piston ring 105 is made to be placed in confined space.Due to this hair
Bright oxygen supercharging is low tolerance pressurization, only leans on piston ring packing that cannot meet the requirements, and piston ring on piston with moving down
The leakage occurred when dynamic initially enters in the confined space that crankcase 162, cylinder 100 and end cap 101 are formed, to prevent leakage
Oxygen is directly entered in the air around oxygen pressing pump 16, so needing to be sealed crankcase 162.As shown in fig. 6, bent
The sealing element 163 that filled polytetrafluoroethylene washer and fluorubber "O"-ring are formed in the seal groove of axle box 162, motor shaft 164 with
Sealing element 163 is in contact, and dynamic sealing is formed with the sealing element 163 when motor shaft 164 rotates；Between cylinder 100 and crankcase 162
The first sealing ring 102 for filling fluorubber "O"-ring and polytetrafluoroethylene gasket formation, is filled out between crankcase 162 and end cap 101
The second sealing ring 103 for filling fluorubber "O"-ring and polytetrafluoroethylene gasket formation, forms static seal.Cylinder 100, cylinder gas
Valve uses oxidation resistant stainless steel material, piston 104, piston ring 105 etc. to rub using the design of material for being not likely to produce spark, movement
It wipes pair and (refers to the connection that two components are in direct contact and can generate certain relative motion friction, specifically to the direct-furnish oxygen one of this present invention
For body machine, crankcase and bent axle, crankshaft-and-connecting-rod, the connection between connecting rod and piston is friction of motion pair) lubrication adopt
With the special oxidation-inhibited grease of oxygen compressor --- chloro-fluorocarbon fat.Oxygen pressing pump 16 is equipped with exhaust safety valve and pressure control
The security controls device such as device processed ensures the stability and reliability of equipment long-play, and peace is opened when the equipment over pressure
Full valve off-load, when the equipment over pressure is shut down, pressure controller ensures the safety of oxygen compression；Using DC brushless motor
Reduce weight of equipment and volume, using single-acting formula air cylinder structure so that device structure is simple, easy to maintain, using direct current without
Brush motor adds the scheme of pin type retarder to reduce equipment operation noise and oscillation intensity.
The temporary storage of oxygen after oxygen storage tank 18 is used to pressurize, since the oxygen of 16 output of oxygen pressing pump is pulsed
, instability of flow, and oxygen used for respirators is nor continuous, oxygen supply when patient's air-breathing, oxygen deprivation when expiration, according to patient
Actual conditions by oxygen storage tank 18 is set with ensures to supply oxygen pressure, oxygen-supplying amount it is relatively stable, meet various use conditions
The different demands to oxygen supply amount of lower lung ventilator, Anesthesia machine.
Oxygen storage tank 18 is generally aluminium or other metal materials, drum forms is made, there is air inlet in one end of cylinder, another
End has exhaust outlet, exhaust outlet to be externally provided with ultimate filter 21, pressure sensor 24, flow control valve 25 and flowmeter 26, oxygen
The finely ground particles for being possible to be generated in adsorption process are removed by ultimate filter 21, flow control valve 25 is defeated for adjusting
Outflow and then adjusting oxygen output pressure ensure that the oxygen pressure of supply of breathing machine Anesthesia machine is stablized, in addition, in end-filtration
Oxygen determination solenoid valve 22, oxygen concentration sensor 23 and pressure sensor are additionally provided on pipeline between device 21 and flow control valve 25
24, for detecting production oxygen concentration and output pressure；Third pressure gauge 19 and third safety valve 20 are additionally provided on oxygen storage tank 18, it can
Internal oxygen pressure is observed at any time, when being more than setting pressure, passes through 20 pressure release of third safety valve.Filling is certain in oxygen storage tank 18
The molecular sieve of the adsorption of oxygen of amount, such as carbon molecular sieve, the interior amount of oxygen adsorbed after molecular sieve that loads of oxygen storage tank 18 is identical
Several times to more than ten times of the amount of oxygen stored in same volume storage tank under pressure, therefore the storage tank of certain volume load molecular sieve
Storage tank storage amount of oxygen it is larger, storage pressure it is relatively low, cause oxygen to add because pressure of storage tank is excessively high to can effectively avoid
Situations such as press pump compression speed reduces, and absorbent module oxygen exhaust hypertonia, oxygen generation efficiency reduce, and due to of the sick and wounded
People's concrete condition is different so that tidal volume is different, need to be adjusted according to individual difference, the oxygen-supplying amount of common oxygen storage tank
Unstable, after loading molecular sieve, due to having adsorbed enough oxygen, storage tank supplies oxygen to lung ventilator or Anesthesia machine
When, pressure reduction, the molecular sieve in storage tank starts to discharge oxygen, to ensure that output oxygen tolerance, the stability of pressure.Cause
This increases oxygen storage amount, improves the stability of oxygen output by loading molecular sieve in oxygen storage tank.Oxygen storage tank
Size be by the respiratory rate of lung ventilator, tidal volume, for oxygen concentration and carbon molecular sieve Oxygen storage capacity and the sick and wounded
What the factors such as human body situation, the state of an illness determined, meet the treatment oxygen consuming amount requirement of all kinds of wounded, minimum oxygen storage capacity need to be more than breathing
Maximum amount of oxygen needed for the every task of machine, volume range are 0.1L~5L.
The medical first aid equipment direct-furnish oxygen all-in-one machine of the present invention is assembled into according to above-mentioned relation with upper-part, this sets
It is standby that raw material is done, it can be achieved that the uninterrupted oxygen oxygen supply processed in scene, it is anxious can to directly drive the medical treatment such as lung ventilator instead of bottled oxygen using air
It rescues equipment, carries out scene oxygen supply free of discontinuities and ensure so that medical treatment mechanism has certain urgent with oxygen supportability；This sets
It is standby compact-sized, integrated system oxygen supply unit 04 is packaged in using push-pull fashion in babinet 01, it is easy to repair, it is made using miniaturization
Oxygen technology and modularized design so that oxygen supercharging device minimizes, easy to carry；By the way that dynamic sealing and static seal knot is arranged
Structure solves the leakage of oxygen compression pressurization, enhances safety and the functional reliability of oxygen compression；By entire
Increase absorption type oxygen cache mechanism in technical process, ensure that work smoothness and safety-type.
The straight method for supplying oxygen of the medical first aid equipment of the present invention is carried out using above-mentioned medical first aid equipment direct-furnish oxygen all-in-one machine
Oxygen processed, oxygen supply, specifically include following steps (referring to Fig.1)：
Step 1：Raw air first passes around air compressor machine component 001 and is filtered, compresses, and compressed air is through heat dissipation
Component 002 cools down, and the cooling water generated is discharged through triple valve 5；
Step 2：The adsorbent bed 11 that air after cooling enters absorbent module 003 through air cushion tank 6 carries out gas point
From the nitrogen that adsorbent bed 11 desorbs is discharged by denitrogen silencer 9, and isolated oxygen enters oxygen surge tank 12；
Step 3：Instability of flow that oxygen surge tank 12 exports adsorbent bed 11 is presented periodically variable oxygen and turns
It turns to pressure stability, carry out oxygen increasing in the oxygen pressing pump 16 that the oxygen of stability of flow is input in oxygen pressing component 004
Pressure；
Step 4：Oxygen after supercharged enters oxygen storage tank 18, and the oxygen in oxygen storage tank 18 is passed through from its oxygen exhaust outlet
It is directly used for medical first aid equipments such as lung ventilators after ultimate filter 21, flow control valve 25, flowmeter 26.
Experimental verification
In experiment medical first aid equipment direct-furnish oxygen all-in-one machine model machine of the present invention used, 2 air inflow of air compressor machine is 105L/
min；There are two the adsorbent bed 11 of absorbent module 003 is set, respectively A adsorbent beds and B adsorbent beds, oxygen-producing amount 10L/min；Oxygen
The size of surge tank 12 is determined by factors such as working frequency, the compressed oxygen tolerance per minute of oxygen pressing pump 16, minimum
Volume need to be more than amount of oxygen of the oxygen pressing pump 16 per second compression, and 12 volume of oxygen surge tank is 2.0L in the model machine；Oxygen adds
It is 500 times per minute that press pump 16, which uses swing piston type pressure texture, cylinder bore 50mm, stroke 12mm, compression speed, compression
Tolerance is 11.775L/min, the oxygen pressing pump 16 oxygen pressurization be Low Pressure Oxygen air source, low tolerance pressurization, into
Atmospheric pressure is less than 0.04MPa, and supercharging tolerance is about 10L/min, the oxygen-producing amount phase of oxygen compression speed and absorbent module 003
When.
After the medical first aid equipment direct-furnish oxygen all-in-one machine model machine starts, it is 10L/min, oxygen that flowmeter 26 measured, which goes out oxygen amount,
The oxygen concentration that concentration sensor 23 measures is 94.29%, and it is 0.35MPa that pressure sensor 24 measured, which goes out oxygen pressure, and satisfaction is exhaled
The use of suction machine, Anesthesia machine.In whole experiment process, after 16 supercharging of amount of oxygen and oxygen pressing pump of 003 output of absorbent module
The amount of oxygen of acquisition is of substantially equal, almost without leakage, illustrates that the sealing structure of 15 setting of oxygen pressing pump achieves the desired results.
It will be appreciated by those skilled in the art that these embodiments or embodiment are merely to illustrate the present invention without limiting this
The range of invention, the various equivalent variations and modification made to the present invention belong to the disclosure of invention.
Claims (7)
1. a kind of medical first aid equipment direct-furnish oxygen all-in-one machine, including integrated system supply oxygen unit (04) and are supplied for assembling integrated system
The group vanning (00) of oxygen unit (04), which is characterized in that the integrated system oxygen supply unit (04) includes the sky of gas circuit connection successively
Press component (001), radiating subassembly (002), air cushion tank (6), absorbent module (003), oxygen surge tank (12), oxygen add
Component (004) and oxygen storage tank (18) are pressed, the oxygen in oxygen storage tank (18) is through a ultimate filter (21), flow control valve
(25) it is directly used for the medical first aid equipment afterwards with flowmeter (26)；
The oxygen pressing component (004) includes pressure-regulating valve (15), oxygen pressing pump (16) and is used to pump oxygen pressing
(16) the oxygen pressing pump cooling fan (17) of cooling down, oxygen in oxygen surge tank (12) through pressure-regulating valve (15) into
Enter in oxygen pressing pump (16), oxygen pressing pumps the air inlet of the outlet connection oxygen storage tank (18) of (16)；
Oxygen pressing pump (16) is swing piston type pressure texture, including cylinder (100), the work that is moved back and forth in cylinder
Plug (104) and the motor (161) that power is provided for piston, the motor shaft (164) of motor (161) pass through connecting rod and piston
(104) it is connected；Piston ring (105) is arranged on piston (104), a crankcase (162) is set to below cylinder (100), one end
It covers (101) setting to be fitted close in the top side of motor shaft (164) and with crankcase body, makes motor shaft (164), piston
(104) it is placed in closed space with piston ring (105)；In the seal groove of crankcase (162) filled polytetrafluoroethylene washer with
The sealing element (163) that fluorubber "O"-ring is formed, motor shaft (164) are in contact to form dynamic sealing with sealing element (163)；Cylinder
(100) the first sealing ring (102) of fluorubber "O"-ring and polytetrafluoroethylene gasket formation is filled between crankcase (162),
The second sealing ring of fluorubber "O"-ring and polytetrafluoroethylene gasket formation is filled between crankcase (162) and end cap (101)
(103), static seal is formed；
The oxygen storage tank (18) be equipped with third pressure gauge (19) and third safety valve (20), inside be filled with adsorption of oxygen
Molecular sieve.
2. medical first aid equipment according to claim 1 direct-furnish oxygen all-in-one machine, which is characterized in that described group of vanning (00)
Babinet (01), panel (02) and group including one end open are shelved (03), and panel (02) is fixed on the outer end that group shelves (03), collection
It is installed on group at system oxygen supply unit (04) and shelves (03) inside, the guide post (031) of (03) is shelved in the setting of babinet (01) bottom with group
The sliding rail (011) to match, group are shelved (03) and are slid into babinet along sliding rail (011) from the opening of babinet (01), panel (02)
The opening of babinet (01) is sealed.
3. medical first aid equipment according to claim 1 or 2 direct-furnish oxygen all-in-one machine, which is characterized in that the air compressor machine
Component (001) includes air intake filter (1) and air compressor machine (2), and the air after air intake filter (1) purified treatment is in air compressor machine
(2) it is compressed in.
4. medical first aid equipment according to claim 1 or 2 direct-furnish oxygen all-in-one machine, which is characterized in that the air is slow
It rushes tank (6) and is equipped with the first safety valve (7) and first pressure gauge (8)；The absorbent module (003) includes gas distributing valve
(10), adsorbent bed (11) and denitrogen silencer (9), the inlet end of gas distributing valve (10) are connected with the air cushion tank (6),
Its outlet side is connected with adsorbent bed (11) and denitrogen silencer (9).
5. medical first aid equipment according to claim 4 direct-furnish oxygen all-in-one machine, which is characterized in that the adsorbent bed (11)
It is interior that zeolite adsorbent is housed for cylinder-like structure；The adsorbent bed (11) is equipped with multiple, the oxygen generating port end point of adsorbent bed
The air inlet of oxygen surge tank (12) is not connected to by pipeline.
6. medical first aid equipment according to claim 1 or 2 direct-furnish oxygen all-in-one machine, which is characterized in that ultimate filter
(21) oxygen determination solenoid valve (22), oxygen concentration sensor (23) and pressure are additionally provided on the pipeline between flow control valve (25)
Sensor (24).
7. a kind of straight method for supplying oxygen of medical first aid equipment is used using claim 1 to 6 any one of them medical first aid equipment
Direct-furnish oxygen all-in-one machine carries out oxygen processed and oxygen supply, which is characterized in that includes the following steps：
Step 1：Raw air is filtered, compresses by air compressor machine component (001), and compressed air is through radiating subassembly
(002) cooling, the cooling water generated is discharged through triple valve (5)；
Step 2：The adsorbent bed (11) that air after cooling enters absorbent module (003) through air cushion tank (6) carries out gas point
From the nitrogen that adsorbent bed (11) desorbs is discharged by denitrogen silencer (9), and isolated oxygen enters oxygen surge tank
(12)；
Step 3：Instability of flow that oxygen surge tank (12) exports adsorbent bed (11) is presented periodically variable oxygen and turns
Turn to pressure stability, the oxygen pressing pump (16) that the oxygen of stability of flow is input in oxygen pressing component (004) carries out oxygen
Supercharging；
Step 4：Oxygen after supercharged enters oxygen storage tank (18), and the oxygen in oxygen storage tank (18) is passed through from its oxygen exhaust outlet
Ultimate filter (21), flow control valve (25), flowmeter directly use after (26) for medical first aid equipments such as lung ventilators.
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| CN107050597B (en) * | 2017-04-06 | 2023-10-10 | 佛山科学技术学院 | Medical compressed air supply device and control method thereof |
| CN107098316A (en) * | 2017-06-27 | 2017-08-29 | 合肥康居人智能科技有限公司 | A kind of oxygenerator gas circuit efficient operation system |
| CN108904936B (en) * | 2018-05-29 | 2020-11-17 | 青岛市中心医院 | Intelligent control oxygen supply first-aid equipment |
| CN109173579A (en) * | 2018-09-18 | 2019-01-11 | 威海威高海盛医用设备有限公司 | A kind of medical oxygen concentrator based on rapid pressure swing adsorption |
| CN110320836B (en) * | 2019-07-06 | 2022-03-11 | 科迈（常州）电子有限公司 | Oxygenerator switching time sequence control method based on pressure control |
| WO2021211084A1 (en) * | 2020-04-14 | 2021-10-21 | Роман Степанович КАДЕЛЯК | Apparatus for enriching air with oxygen |
| CN111792626A (en) * | 2020-08-12 | 2020-10-20 | 成都洛子科技有限公司 | Oxygen supply equipment for oxygen production |
| CN113251700B (en) * | 2021-05-12 | 2022-08-16 | 四川零碳工程科技有限公司 | Frostless type heat pump oxygen-making air conditioning unit |
| CN113148958B (en) * | 2021-05-14 | 2023-09-15 | 广州埃珥赛璞医疗设备有限公司 | Oxygen supply amount adjusting system, method, equipment and medium for medical molecular sieve oxygen production equipment |
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