CN106379863A - Direct oxygen supply all-in-one machine for medical first-aid equipment and direct oxygen supply method of medical first-aid equipment - Google Patents
Direct oxygen supply all-in-one machine for medical first-aid equipment and direct oxygen supply method of medical first-aid equipment Download PDFInfo
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- CN106379863A CN106379863A CN201611010903.3A CN201611010903A CN106379863A CN 106379863 A CN106379863 A CN 106379863A CN 201611010903 A CN201611010903 A CN 201611010903A CN 106379863 A CN106379863 A CN 106379863A
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0208—Oxygen
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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
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Animal Behavior & Ethology (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The invention provides a direct oxygen supply all-in-one machine for medical first-aid equipment and a direct oxygen supply method of the medical first-aid equipment. The all-in-one machine comprises an integrated oxygen production and supply set and an assembling box for assembling the integrated oxygen production and supply set, wherein the integrated oxygen production and supply set comprises an air compressor assembly, a heat dissipation assembly, an air buffering tank, an adsorption assembly, an oxygen buffering tank, an oxygen pressurizing assembly and an oxygen storage tank, which are communicated in sequence; oxygen gas in the oxygen storage tank passes through a terminal filter, a flow meter and a flow adjusting valve and is directly supplied to the medical first-aid equipment to use. According to the direct oxygen supply all-in-one machine provided by the invention, air is used as a raw material, in-site continuous oxygen production and oxygen supply is realized and the medical first-aid equipment is directly driven; the direct oxygen supply all-in-one machine has a compact structure, and the integrated oxygen production and supply set is packaged in a box body by adopting a push-pull manner and is convenient to repair and transport; dynamic sealing and static sealing structures are arranged and leakage in an oxygen compression and pressurizing process is prevented; the safety and working reliability of oxygen compression are enhanced; in a whole technical process, an adsorption type oxygen caching mechanism is added, so that the working stability and the working safety are guaranteed.
Description
Technical field
The invention belongs to oxygen processed, oxygen supply technical field of medical equipment are and in particular to a kind of compact conformation, easy to maintenance, work
Reliably it is capable of scene oxygen processed, oxygen supply free of discontinuities and directly drive the direct-furnish oxygen one of the medical first aid equipments such as lung ventilator
Machine and its straight method for supplying oxygen.
Background technology
Used in performing the operation at present, conventional ventilators, Anesthesia machine are all to supply oxygen, particularly field using oxygen cylinder
Medical treatment situation, oxygen amount used for respirators is larger, and oxygen cylinder storage oxygen amount is limited, needs often to change gas cylinder supplemental oxygen, this just needs
Want oxygen source guarantee can not interrupt, to transport power require higher, under wild environment, once oxygen supply it cannot be guaranteed that, just cannot carry out
Operation；Oxygen cylinder storage oxygen pressure higher (generally expiring bottle oxygen pressure is 12MPa), belongs to pressure vessel, there is safety
Risk.
Authorization Notice No. is that the utility model of CN2687099Y discloses a kind of oxygen processed integrating oxygen processed, oxygen supply and storage oxygen
Complete set of equipments, it includes molecular sieve oxygen generation main frame, and this oxygen main frame processed is connected with buffering filter by output channel, and this is buffered
The outlet of filter is then connected with the oxygen container of oxygen supply by oxygen supercharger, although this equipment is capable of continuously uninterruptedly making
Oxygen, storage oxygen, but have the following disadvantages：(1) two oxygen main frame processed oxygen-producing amounts of this equipment are 11.5m altogether3/ d (about 8L/min), produces oxygen
Amount can not directly meet Use of respirator (commonly required amount of oxygen be 10L/min), needs work ahead, store a certain amount of oxygen in
In oxygen container；(2) because oxygen main frame processed oxygen-producing amount is relatively low it is impossible to plug and play meets Use of respirator in real time, therefore, it stores up oxygen
Tank volume must design large volume, lay in certain oxygen in advance and meet oxygen used for respirators and require, and larger Oxygen storage container exists
It is suitable that fixed medical and health organization uses, but the movement after storage oxygen, carrying inconvenience, there is also certain danger,
Therefore, the place that the utility model of CN2687099Y is not appropriate for carrying at any time in field uses；(3) not right in CN2687099Y
Realize the operation principle of oxygen supercharger, course of work of oxygen supercharging etc. to be described in detail, clearly do not propose to solve
The concrete measure of key issue (such as oxygen leakage loss etc.) and method in low pressure low discharge oxygen source pressurization.
Content of the invention
The invention aims to solving the above problems, provide a kind of compact conformation, easy to maintenance, reliable operation energy
Enough direct-furnish oxygen all-in-ones realized scene oxygen processed, oxygen supply free of discontinuities and directly drive the medical first aid equipments such as lung ventilator.
The above-mentioned purpose of the present invention to be realized by technical scheme below：
A kind of medical first aid equipment direct-furnish oxygen all-in-one, including integrated oxygen supply unit (04) processed be used for assembling integrated system
Group vanning (00) of oxygen supply unit (04), described integrated oxygen supply unit (04) processed includes the air compressor machine assembly of gas circuit connection successively
(001), radiating subassembly (002), air cushioning tank (6), absorbent module (003), oxygen surge tank (12), oxygen pressing assembly
(004) and oxygen storage tank (18), the oxygen in oxygen storage tank (18) is adjusted through a ultimate filter (21), flowmeter (26) and flow
Section valve (25) directly uses for described medical first aid equipment afterwards.
Above-mentioned medical first aid equipment is with, in direct-furnish oxygen all-in-one, described group of vanning (00) includes the casing 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), integrated oxygen supply unit (04) peace processed
It is loaded on group and shelves (03) inside, the setting of casing (01) bottom shelves, with group, the slide rail (011) that the guide pillar (031) of (03) matches,
Group is shelved (03) and is slipped in casing along slide rail (011) at the opening of casing (01), and panel (02) will be close for the opening of casing (01)
Envelope.
Above-mentioned medical first aid equipment is with, in direct-furnish oxygen all-in-one, described air compressor machine assembly (001) includes air intake filter (1)
With air compressor machine (2), the air after air intake filter (1) purified treatment compressed in air compressor machine (2).
Above-mentioned medical first aid equipment is with, in direct-furnish oxygen all-in-one, described air cushioning tank (6) is provided with the first safety valve (7)
With first pressure table (8)；Described 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 described air cushioning tank (6), its outlet side and adsorbent bed (11) and denitrogen
Silencer (9) is connected.
Above-mentioned medical first aid equipment is with, in direct-furnish oxygen all-in-one, described adsorbent bed (11) is cylinder-like structure, built with boiling
Stone adsorbent of molecular sieve；Described adsorbent bed (11) is provided with multiple, and the oxygen generating port end of adsorbent bed is connected to oxygen by pipeline respectively
The air inlet of surge tank (12).
Above-mentioned medical first aid equipment is with, in direct-furnish oxygen all-in-one, described oxygen storage tank (18) is provided with the 3rd pressure gauge (19)
With the 3rd safety valve (20), inside it, it is filled with the molecular sieve of adsorption of oxygen.
Above-mentioned medical first aid equipment is with, in direct-furnish oxygen all-in-one, described oxygen pressing assembly (004) includes pressure-regulating valve
(15), oxygen pressing pump (16) and for oxygen pressing pump cooling fan (17) to oxygen pressing pump (16) cooling down, oxygen
Oxygen in gas surge tank (12) enters in oxygen pressing pump (16) through pressure-regulating valve (15), the outlet of oxygen pressing pump (16)
Connect the air inlet of oxygen storage tank (18).
Above-mentioned medical first aid equipment is with, in direct-furnish oxygen all-in-one, described oxygen pressing pump (16) compresses knot for swing piston type
Structure, including cylinder (100), in cylinder reciprocating piston (104) and for piston provide power motor (161), electricity
The motor shaft (164) of machine (161) is connected with piston (104) by connecting rod；Piston ring (105) is arranged with piston (104), one is bent
Axle box (162) is arranged at below cylinder (100), and an end cap (101) is arranged on top side and the crankcase of motor shaft (164)
Casing is fitted close, and so that motor shaft (164), piston (104) and piston ring (105) is placed in airtight space；Crankcase (162)
Seal groove in the seal (163) that formed of filled polytetrafluoroethylene packing ring and fluorubber "O"-ring, motor shaft (164) with close
Sealing (163) contacts formation dynamic sealing；Filling fluorubber "O"-ring and polytetrafluoro between cylinder (100) and crankcase (162)
The first sealing ring (102) that ethene packing ring is formed, fills fluorubber "O"-ring and gathers between crankcase (162) and end cap (101)
The second sealing ring (103) that tetrafluoroethene packing ring is formed, forms static seal.
Above-mentioned medical first aid equipment with direct-furnish oxygen all-in-one, between ultimate filter (21) and flow control valve (25)
Oxygen determination magnetic valve (22), oxygen concentration sensor (23) and pressure sensor (24) are additionally provided with pipeline.
The present invention also provides a kind of straight method for supplying oxygen of medical first aid equipment, and the method uses above-mentioned medical first aid equipment to use
Direct-furnish oxygen all-in-one carries out oxygen processed and oxygen supply, comprises the following steps：
Step one：Raw air carries out filtering, compresses through air compressor machine assembly (001), and the air after compression is through radiating group
Part (002) cools down, and the water that cooling produces is discharged through triple valve (5)；
Step 2：Air after cooling enters promoting the circulation of qi through the adsorbent bed (11) that air cushioning tank (6) enters absorbent module (003)
Body separates, and the nitrogen that adsorbent bed (11) desorbs passes through denitrogen silencer (9) and discharges, and separates the oxygen obtaining and enters oxygen buffering
Tank (12)；
Step 3：Instability of flow that adsorbent bed (11) is exported by oxygen surge tank (12), assume periodically variable oxygen
The oxygen pressing pump (16) that gas is converted into pressure stability, the oxygen of stability of flow is input in oxygen pressing assembly (004) is carried out
Oxygen is pressurized；
Step 4：Oxygen after supercharging enters oxygen storage tank (18), and the oxygen in oxygen storage tank (18) is vented from its oxygen
Mouth directly uses for medical first aid equipments such as lung ventilators after (26) through ultimate filter (21), flow control valve (25), flowmeter.
Using technique scheme, the solution have the advantages that：The present invention does raw material using air, and achievable scene is not
It is interrupted oxygen oxygen supply processed, the medical first aid equipments such as bottled oxygen direct drive lung ventilator can be replaced, carry out live oxygen supply guarantee free of discontinuities,
Plug and play, oxygen-producing amount can meet use requirement so that medical treatment mechanism possesses and certain urgent uses oxygen supportability；Structure
Compact, integrated oxygen supply unit processed is packaged in casing using push-pull fashion, is easy to keep in repair, using miniaturization oxygenerating technology and module
Change design so that the miniaturization of oxygen supercharging device, be easy to carrying it is adaptable to field place uses；By arranging dynamic sealing and quiet
Sealing structure, solves the leakage problem that oxygen compresses pressurization, enhances security and the functional reliability of oxygen compression；
By increasing absorption type oxygen cache mechanism in whole technical process it is ensured that stable working and safety-type.
Brief description
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structural representation of group vanning；
Fig. 3 is that integrated oxygen supply unit processed is assembled into the structural representation after group is shelved；
Fig. 4 is the process chart of the direct-furnish oxygen all-in-one of the present invention；
Fig. 5 is the structural representation of oxygen pressing pump；
Fig. 6 is the dynamic sealing schematic diagram of oxygen pressing pump.
In figure reference is expressed as：
1：Air intake filter；2：Air compressor machine；3：Radiator；4：Radiator cooling fan；5：Triple valve；6：Air cushioning
Tank；7：First safety valve；8：First pressure table；9：Denitrogen silencer；10：Gas distributing valve；11：Adsorbent bed；12：Oxygen buffers
Tank；13：Second pressure table；14：Second safety valve；15：Pressure-regulating valve；16：Oxygen pressing pump；17：Oxygen pressing pump cools down
Fan；18：Oxygen storage tank；19：3rd pressure gauge；20：3rd safety valve；21：Ultimate filter；22：Oxygen determination magnetic valve；23：
Oxygen concentration sensor；24：Pressure sensor；25：Flow control valve；26：Flowmeter；
161：Motor, 162：Crankcase, 163：Seal, 164：Motor shaft；
001：Air compressor machine assembly；002：Radiating subassembly；003：Absorbent module；004：Oxygen pressing assembly；
00：Group vanning；
01：Casing, 011：Slide rail, 012：Fixed via；
02：Panel, 021：LCDs, 022：Louvered air outlet, 023：Oxygen outlet, 024：Handle, 025：Power supply
Switch, 026：Power interface, 027：Installing hole；
03：Group is shelved, and 031：Guide pillar, 032：Fixing screwed hole；
04：Integrated oxygen supply unit processed；
100：Cylinder, 101：End cap, 102：First sealing ring, 103：Second sealing ring, 104：Piston, 105：Piston ring.
Specific embodiment
The direct-furnish oxygen all-in-one oxygen-producing amount of the present invention is 10L/min, can meet lung ventilator, Anesthesia machine under normal running conditions
Deng medical first aid equipment using it is not necessary to store a certain amount of oxygen in advance；The direct-furnish oxygen all-in-one of the present invention adopts case instrument
Integrated structure design, integrates oxygen processed, supercharging, oxygen supply function, small volume, lightweight, and casing adopts 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 of the present invention is carried out specifically
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 of the present invention.As shown in figure 1, should
Direct-furnish oxygen all-in-one is case instrument integral structure, including integrated oxygen supply unit 04 processed with for assembling integrated oxygen supply unit 04 processed
Group vanning 00, as shown in Fig. 2 group vanning 00 includes casing 01, panel 02 and group and shelves 03, wherein：
Casing 01 is the square box of one end open, and its bottom inner surface is arranged with two slide rails 011, left and right sides
It is respectively provided with a fixed via 012.
It is square rack that group shelves 03, and integrated oxygen supply unit 04 processed is installed on inside support body, and this support body bottom is provided with two
Guide pillar 031, two guide pillars 031 are matched with two slide rails 011 of casing 01, and guide pillar 031 is embedded in slide rail 011, can be by group
Shelve 03 propulsion to release, be easy to keep in repair；Group is shelved 03 about support body and is respectively offered fixing screwed hole 032, when group shelves 03 propulsion
After casing 01, group is shelved 03 fixing screwed hole 032 and is overlapped with the fixed via 012 of casing 01, and a screw rod is screwed in, can be by case
It is fixing that body 01 and group shelve 03.
Panel 02 is the plate body matching with casing 01 opening shape, and this plate body is fixed on the outer end that group shelves 03, works as group
Shelve 03 push casing 01 after, the opening of casing 01 can be sealed by panel 02；The outer surface of panel 02 is provided with LCDs
021st, louvered air outlet 022, oxygen outlet 023, handle 024, power switch 025, power interface 026 and flow control valve 25
Installing hole 027, wherein, LCDs 021 passes through PLC and pressure sensor 24, flowmeter 26, oxygen concentration sensing
Device 23 grade connects, and is used for showing oxygen pressure, produces oxygen flow, oxygen concentration etc.；Louvered air outlet 022 is provided with multiple, for whole
The radiating of individual integrated oxygen supply unit 04 processed is it is ensured that functional reliability；Oxygen outlet 023 is with flow control valve 25, flowmeter 26 even
Connect, this outlet may be coupled directly to the medical first aid equipments such as lung ventilator；Handle 024 is provided with two, is arranged in the both sides of panel 02,
Pulling group is facilitated to shelve 03；Power interface 026 is used for external 220V AC power, and passes through PLC and air compressor machine 2, dissipates
Hot assembly 3, oxygen pressing pump 16, pressure sensor 24, gas distributing valve 10, oxygen determination magnetic valve 22 and other magnetic valves (referring to
Fig. 4) etc. part connects, and power switch 025 is series between power interface and PLC, for controlling the break-make of power supply.
Integrated oxygen supply unit processed
Integrated oxygen supply unit 04 processed is installed on group and shelves inside 03, and is encapsulated in casing 01 and is assembled into an entirety,
In embodiment shown in Fig. 3 and Fig. 4, integrated oxygen supply unit 04 processed includes the air compressor machine assembly 001 of gas circuit connection, radiating group successively
Part 002, air cushioning tank 6, absorbent module 003, oxygen surge tank 12, oxygen pressing assembly 004 and oxygen storage tank 18, wherein：
Air compressor machine assembly 001 includes air intake filter 1 and air compressor machine 2, air intake filter 1 be filled with compound glass fiber or
The sponge material porous filter material such as PP material fibers or PU, PE, for the purified treatment to air, during air inlet, surrounding air
Air compressor machine 2 is entered through filtering material, the filtering material of different filtering accuracies filters the dust of different-grain diameter size, passes through after filtering
Staged filters, and reduces filtration resistance, improves filtering accuracy, and final realization removes in the air dust with diameter greater than 0.1 μm etc.
The purpose of solid impurity, and adopt the versions such as pore channels, expansion chamber to carry out noise reduction to reduce induction noise；Air compressor machine
2 compressions being used for air after purification, make the air of entrance absorbent module 003 meet certain pressure, thus realizing in adsorbent bed 11
The pressurized adsorbent of molecular sieve.
Radiating subassembly 002 is used for the portion of water reducing the temperature of compressed air and removing in the air, including radiator
3rd, radiator cooling fan 4 and corresponding annex, radiator 3 is the pipe fitting being bent into U-shaped, the shape such as snakelike by copper tube,
And aluminum radiating thin slice is installed pipe is outer, to increase specific heat load, install by radiating thin slice simultaneously radiator cooling fan 4 with
Strengthen heat convection, or radiator cooling fan 4 is directly installed on air cushioning tank 6 side, to make compressed air cold
But；Triple valve 5 connection radiator 3 and air cushioning tank 6, another passage of triple valve 5 connects drainpipe, cold for discharging air
But the water producing.
Air cushioning tank 6 is used for ensureing that air draught pressure is relatively stable, and it is generally aluminium or other metal material, makes
Drum forms, there is air inlet one end of cylinder, and the other end has exhaust outlet, and air cushioning tank is provided with the first safety valve 7 and first
Pressure gauge 8, can observe air cushioning tank 6 internal gas pressure at any time, when exceeding setting pressure, by the first safety valve 7 pressure release.
Air cushioning tank 6 size is to determine, volume range is by factors such as absorbent module 003 air consumption per minute, 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 cushioning tank 6, and outlet side is respectively
It is connected with A adsorbent bed, B adsorbent bed and denitrogen silencer 9, the air in air cushioning tank 6 is carried out point by gas distributing valve 10
Join entrance adsorbent bed 11, the nitrogen that adsorbent bed 11 desorbs is discharged by denitrogen silencer 9 through gas distributing valve 10, and gas distributes
Valve 10 is used for turnover absorption bed gas are allocated, gas distributing valve 10 can also by the mechanical valve of existing other forms or
Other mechanisms realize however it is not limited to two position four-way solenoid valves；In this embodiment, adsorbent bed 11 is provided with two, respectively A adsorbent bed
With B adsorbent bed, adsorbent bed 11 generally cylinder-like structure, inside it is filled with zeolite adsorbent, such as 5A, 13X, lithium type etc.
Zeolite molecular sieve, the oxygen generating port end of A adsorbent bed and B adsorbent bed is connected to the air inlet of oxygen surge tank 12 respectively by pipeline.
It is 93% ± 3% that adsorbent bed 11 prepares oxygen concentration using many adsorbent beds molecular sieve pressure-variable adsorption (PSA) oxygenerating technology
Oxygen.PSA oxygen is with molecular sieve as adsorbent, and the air in nature is raw material, using molecular sieve in different pressures bar
Change to nitrogen adsorption amount under part, separates and oxygen is obtained.Under normal temperature pressurized conditions, the adsorption capacity to nitrogen for the zeolite molecular sieve
Greatly, little to the adsorption capacity of oxygen, thus the nitrogen of in the air is by molecular sieve adsorption, oxygen passes through molecular sieve, in lower pressure
Under, molecular sieve reduces so that the nitrogen of absorption desorbs to the adsorption capacity of nitrogen, by pressurized adsorbent depressurization desorption, reaches
Purpose to 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 work
As a example skill process, its technical process is as follows：Pressurising/adsorption process first, that is, unstripped gas enter A adsorbent bed carry out pressurising, molecule
Sieve absorption nitrogen output oxygen；Followed by pressure equalizing, that is, A adsorbent bed B adsorbent bed is all pressed, make A adsorbent bed be depressured row
The gas going out is utilized effectively；Followed by it is vented process, i.e. A adsorbent bed depressurization desorption, the nitrogen of absorption is discharged, and molecular sieve obtains
To regeneration, thus realizing recycling of molecular sieve；Followed by flushing process, that is, utilize the detached a part of product of B adsorbent bed
Gas is rinsed to the A adsorbent bed of emptying, removes the residual nitrogen in adsorbent, improves the power of regeneration of molecular sieve, and it is right to strengthen
The absorption property of nitrogen；It is finally pressure equalizing, that is, B adsorbent bed and A adsorbent bed are all pressed, make B adsorbent bed be depressured discharge
Gas is utilized effectively.
1 liang of adsorbent bed PSA cycle time sequential routine of table
In addition, the number of adsorbent bed is not limited to two, should flexibly arrange according to the actual requirements, three or three can be set to
More than, the specific embodiment in adsorbent bed is optimized improvement with reference to above-mentioned two adsorbent bed.
Oxygen surge tank 12 is generally aluminium or other metal material, makes drum forms, there is air inlet one end of cylinder, separately
There is exhaust outlet one end, and oxygen surge tank 12 is provided with second pressure table 13 and the second safety valve 14, can observe internal oxygen at any time
Pressure, when internal oxygen exceedes setting pressure, by the second safety valve 14 pressure release.
The effect of oxygen surge tank 12 be adsorbent bed is periodically produced oxygen process be converted into oxygen continuous supply it is ensured that
The oxygen pressure of supply oxygen pressing pump is stable, stability of flow.It is continuable cyclic process that pressure-variable adsorption produces oxygen process, absorption
The oxygen flow of bed 11 output is unstable, assumes cyclically-varying, and the normal work of oxygen pressing pump 16 needs one to stablize
Air inlet, by increasing oxygen surge tank 12 between so that the supply oxygen pressure of oxygen pressing pump 16, flow are steady
Determine it is ensured that it normally runs.The size of oxygen surge tank 12 is by the operating frequency of oxygen pressing pump 16, compressed oxygen per minute
The factors such as tolerance determine, minimum volume need to be more than the every second compression of oxygen pressing pump 16 amount of oxygen, volume range be 0.1L～
5L.
Oxygen pressing assembly 004 includes pressure-regulating valve 15, oxygen pressing pump 16 and oxygen pressing pump cooling fan 17, oxygen
Oxygen in gas surge tank 12 enters in oxygen pressing pump 16 through pressure-regulating valve 15, and pressure-regulating valve 15 is used for adjusting oxygen and delays
Rush the oxygen pressure of tank 12 discharge so as to the admission pressure meeting during oxygen pressing pump 16 work requires.Oxygen pressing pump cools down
Fan 17 is used for carrying out cooling down to oxygen pressing pump 16.
In the course of the work, the oxygen compression speed of oxygen pressing pump 16 must be suitable with the oxygen-producing amount of absorbent module 003
Or smaller, compression speed is more than product oxygen speed can make absorbent module 003 oxygen exhaust produce negative pressure, accelerate from absorbent module 003
" suction " oxygen, leads to adsorbent bed 11 pressure drop of absorbent module 003, and the air of entrance does not also fully adsorb just " to be inhaled ",
Thus produce oxygen concentration reducing, if the too small meeting of compression speed makes final oxygen-supplying amount not enough it is impossible to meet Use of respirator, also so that
Absorbent module 003 oxygen exhaust produces larger malleation, 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 transport in cylinder
Dynamic piston 104 and the motor 161 providing power for piston, the motor shaft 164 of motor 161 passes through connecting rod etc. and piston 104
It is connected, for driving piston in cylinder motion, realize gas compression；Cylinder 100 is provided with intake valve and air bleeding valve, with piston
Move back and forth and be turned on and off, realize the entrance of oxygen and supercharging is discharged.Because the compressed media in cylinder 100 is oxygen,
The sealing of oxygen pressurization, security are particularly important.Piston ring 105 is arranged with the groove of piston 104, with piston
Move up and down, improve the sealing between piston and cylinder, during preventing piston 104 compressed oxygen, oxygen passes through piston 104
With the gap leakage of cylinder wall, crankcase 162 is arranged at below cylinder 100, and end cap 101 is arranged on the top one of motor shaft 164
Side, is fitted close with crankcase body, so that motor shaft 164, piston 104 and piston ring 105 is placed in confined space.Due to this
Bright oxygen is pressurized as low tolerance pressurization, only can not meet requirement by piston ring packing, and piston ring moves down with piston
The leakage occurring when dynamic initially enters in the confined space that crankcase 162, cylinder 100 and end cap 101 are formed, for preventing leakage
Oxygen is directly entered the in the air around oxygen pressing pump 16, so needing crankcase 162 is sealed.As shown in fig. 6, it is bent
The seal 163 that in the seal groove of axle box 162, filled polytetrafluoroethylene packing ring and fluorubber "O"-ring are formed, motor shaft 164 with
Seal 163 contacts, and forms dynamic sealing with this seal 163 during motor shaft 164 rotation；Between cylinder 100 and crankcase 162
Filling fluorubber "O"-ring and the first sealing ring 102 of polytetrafluoroethylene gasket formation, fill out between crankcase 162 and end cap 101
Fill the second sealing ring 103 that fluorubber "O"-ring and polytetrafluoroethylene gasket are formed, form static seal.Cylinder 100, cylinder gas
Valve adopts oxidation resistant stainless steel material, and, using the design of material being not likely to produce spark, motion rubs for piston 104, piston ring 105 etc.
Wipe pair (to refer to two component directly contacts and the connection of certain relative motion friction, the specifically direct-furnish oxygen one to this present invention can be produced
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 oxygen compressor special oxidation-inhibited grease chloro-fluorocarbon fat.This oxygen pressing pump 16 is provided with exhaust safety valve and pressure control
The security control device such as device processed, it is ensured that the long playing stability of equipment and reliability, opens peace when this equipment over pressure
Full valve off-load, when this equipment over pressure is shut down, pressure controller guarantees the security 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 no
The scheme that brush motor adds pin type decelerator reduces equipment operation noise and oscillation intensity.
Oxygen storage tank 18 is used for the temporary transient storage of oxygen after pressurization, and the oxygen due to oxygen pressing pump 16 output is pulsed
, instability of flow, and oxygen used for respirators is not continuous, oxygen supply during patient's air-breathing, and oxygen deprivation during expiration, according to patient
Actual conditions pass through arrange oxygen storage tank 18 ensure oxygen supply pressure, oxygen-supplying amount relatively stable, meet various use conditions
Lower lung ventilator, the different demands to oxygen quantity delivered of Anesthesia machine.
Oxygen storage tank 18 is generally aluminium or other metal material, makes drum forms, there is air inlet one end of cylinder, another
There is exhaust outlet at end, and exhaust outlet is externally provided with ultimate filter 21, pressure sensor 24, flow control valve 25 and flowmeter 26, oxygen
The finely ground particles being possible to produce in adsorption process are removed by ultimate filter 21, flow control valve 25 is used for adjusting defeated
Outflow and then adjust oxygen output pressure it is ensured that the oxygen pressure of supply of breathing machine Anesthesia machine is stable, in addition, in end-filtration
Oxygen determination magnetic valve 22, oxygen concentration sensor 23 and pressure sensor are additionally provided with the pipeline between device 21 and flow control valve 25
24, produce oxygen concentration and output pressure for detection；3rd pressure gauge 19 and the 3rd safety valve 20 are additionally provided with oxygen storage tank 18, can
Observe internal oxygen pressure at any time, when exceeding setting pressure, by the 3rd safety valve 20 pressure release.In oxygen storage tank 18, filling is certain
The molecular sieve of the adsorption of oxygen of amount, such as carbon molecular sieve etc., after filling molecular sieve in oxygen storage tank 18, the amount of oxygen of absorption is identical
Several times of the amount of oxygen of same volume storage tank memory storage to more than ten times, the therefore storage tank of certain volume under pressure, load molecular sieve
Storage tank storage amount of oxygen larger, storage pressure relatively low, thus can be prevented effectively from leading to oxygen to add because pressure of storage tank is too high
Press pump compression speed reduces, situations such as absorbent module oxygen exhaust hypertonia, oxygen generation efficiency reduce, and due to 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, reduced pressure, the molecular sieve in storage tank starts to discharge oxygen, thus ensure that output oxygen tolerance, the stability of pressure.Cause
This, by loading molecular sieve in oxygen storage tank, increased oxygen storage amount, improve the stability of oxygen output.Oxygen storage tank
Size be by the respiratory rate of lung ventilator, tidal volume, the Oxygen storage capacity for oxygen concentration and carbon molecular sieve and the sick and wounded
The factors such as person situation, the state of an illness determine, the treatment oxygen consuming amount meeting all kinds of wounded requires, and minimum oxygen storage capacity need to be more than breathing
Maximum amount of oxygen needed for the every task of machine, volume range is 0.1L～5L.
Assemble into the medical first aid equipment direct-furnish oxygen all-in-one of the present invention with upper-part according to above-mentioned relation, this sets
For raw material is done using air, the uninterrupted oxygen oxygen supply processed in the scene that can achieve, bottled oxygen direct drive lung ventilator etc. can be replaced medical anxious
Rescue equipment, carry out live oxygen supply guarantee free of discontinuities so that medical treatment mechanism possesses and certain urgent uses oxygen supportability；This sets
Standby compact conformation, integrated oxygen supply unit 04 processed is packaged in casing 01 using push-pull fashion, is easy to keep in repair, using miniaturization system
Oxygen technology and modularized design, so that the miniaturization of oxygen supercharging device, are easy to carry；By arranging dynamic sealing and static seal knot
Structure, solves the leakage that oxygen compresses pressurization, enhances security and the functional reliability of oxygen compression；By whole
Increase absorption type oxygen cache mechanism it is ensured that stable working and safety-type in technical process.
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
Oxygen processed, oxygen supply, specifically include following steps (with reference to Fig. 1)：
Step one：Raw air first passes around air compressor machine assembly 001 and carries out filtering, compresses, and the air after compression is through radiating
Assembly 002 cools down, and the water that cooling produces is discharged through triple valve 5；
Step 2：Air after cooling carries out gas through the adsorbent bed 11 that air cushioning tank 6 enters absorbent module 003 and divides
From the nitrogen that adsorbent bed 11 desorbs is discharged by denitrogen silencer 9, separates the oxygen obtaining and enters oxygen surge tank 12；
Step 3：Instability of flow that adsorbent bed 11 is exported by oxygen surge tank 12, assume periodically variable oxygen and turn
Turn to pressure stability, the oxygen of stability of flow is input in the oxygen pressing pump 16 in oxygen pressing assembly 004 and carries out oxygen increasing
Pressure；
Step 4：Oxygen after supercharging enters oxygen storage tank 18, and the oxygen in oxygen storage tank 18 is from its oxygen exhaust outlet warp
Directly use 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 model machine of the present invention used, air compressor machine 2 air inflow is 105L/
min；The adsorbent bed 11 of absorbent module 003 is provided with two, respectively A adsorbent bed and B adsorbent bed, and oxygen-producing amount is 10L/min；Oxygen
The size of surge tank 12 is to be determined by factors such as the operating frequency of oxygen pressing pump 16, compressed oxygen tolerance per minute, minimum
Volume need to be more than the amount of oxygen of the every second compression of oxygen pressing pump 16, and in this model machine, oxygen surge tank 12 volume is 2.0L；Oxygen adds
Press pump 16 adopts swing piston type pressure texture, cylinder bore 50mm, stroke 12mm, and compression speed is 500 times per minute, compression
Tolerance is 11.775L/min, and the oxygen pressurization of this oxygen pressing pump 16 is Low Pressure Oxygen source of the gas, low tolerance pressurization, enters
Atmospheric pressure is less than 0.04MPa, and supercharging tolerance is about 10L/min, the oxygen-producing amount phase of its oxygen compression speed and absorbent module 003
When.
After this medical first aid equipment direct-furnish oxygen all-in-one model machine starts, what flowmeter 26 recorded goes out oxygen amount is 10L/min, oxygen
The oxygen concentration that concentration sensor 23 records is 94.29%, and what pressure sensor 24 recorded goes out oxygen pressure is 0.35MPa, and satisfaction is exhaled
Suction machine, the use of Anesthesia machine.In whole experiment process, after the amount of oxygen of absorbent module 003 output is pressurized with oxygen pressing pump 16
The amount of oxygen obtaining is of substantially equal, does not almost leak, and illustrates that the sealing structure of oxygen pressing pump 15 setting produces a desired effect.
It will be appreciated by those skilled in the art that these embodiments or embodiment are merely to illustrate the present invention and do not limit this
The scope of invention, the various equivalent variations that the present invention is made and modification belong to the disclosure of invention.
Claims (10)
1. a kind of medical first aid equipment direct-furnish oxygen all-in-one, assembles integrated system including integrated oxygen supply unit (04) processed and being used for and supplies
Group vanning (00) of oxygen unit (04) is it is characterised in that described integrated oxygen supply unit (04) processed includes the sky of gas circuit connection successively
Press assembly (001), radiating subassembly (002), air cushioning tank (6), absorbent module (003), oxygen surge tank (12), oxygen add
Pressure assembly (004) and oxygen storage tank (18), the oxygen in oxygen storage tank (18) through a ultimate filter (21), flowmeter (26) and
Flow control valve (25) directly uses for described medical first aid equipment afterwards.
2. medical first aid equipment according to claim 1 with direct-furnish oxygen all-in-one it is characterised in that described group vanning (00)
Casing (01) including one end open, panel (02) and group are shelved (03), and panel (02) is fixed on the outer end that group shelves (03), collection
Become oxygen supply unit (04) processed to be installed on group and shelve (03) inside, the setting of casing (01) bottom and group shelve the guide pillar (031) of (03)
The slide rail (011) matching, group is shelved (03) and is slipped in casing along slide rail (011) at the opening of casing (01), panel (02)
Opening sealing by casing (01).
3. medical first aid equipment according to claim 1 and 2 with direct-furnish oxygen all-in-one it is characterised in that described air compressor machine
Assembly (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) compressed in.
4. medical first aid equipment according to claim 1 and 2 with direct-furnish oxygen all-in-one it is characterised in that described air delay
Rush tank (6) and be provided with the first safety valve (7) and first pressure table (8)；Described 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 described air cushioning tank (6),
Its outlet side is connected with adsorbent bed (11) and denitrogen silencer (9).
5. medical first aid equipment according to claim 4 with direct-furnish oxygen all-in-one it is characterised in that described adsorbent bed (11)
For cylinder-like structure, built with zeolite adsorbent；Described adsorbent bed (11) is provided with multiple, and the oxygen generating port end of adsorbent bed is divided
It is not connected to the air inlet of oxygen surge tank (12) by pipeline.
6. the medical first aid equipment according to any one of claim 1 to 5 with direct-furnish oxygen all-in-one it is characterised in that described
Oxygen storage tank (18) is provided with the 3rd pressure gauge (19) and the 3rd safety valve (20), is filled with the molecule of adsorption of oxygen inside it
Sieve.
7. the medical first aid equipment according to any one of claim 1 to 6 with direct-furnish oxygen all-in-one it is characterised in that described
Oxygen pressing assembly (004) includes pressure-regulating valve (15), oxygen pressing pump (16) and is used for oxygen pressing pump (16) is lowered the temperature
Oxygen pressing pump cooling fan (17) of cooling, the oxygen in oxygen surge tank (12) enters oxygen through pressure-regulating valve (15) and adds
In press pump (16), the outlet of oxygen pressing pump (16) connects the air inlet of oxygen storage tank (18).
8. medical first aid equipment according to claim 7 with direct-furnish oxygen all-in-one it is characterised in that described oxygen pressing pump
(16) be swing piston type pressure texture, include cylinder (100), in cylinder reciprocating piston (104) and for piston
There is provided the motor (161) of power, the motor shaft (164) of motor (161) is connected with piston (104) by connecting rod；On piston (104)
It is arranged with piston ring (105), a crankcase (162) is arranged at below cylinder (100), and an end cap (101) is arranged on motor shaft
(164) top side is simultaneously fitted close with crankcase body, so that motor shaft (164), piston (104) and piston ring (105) is put
In airtight space；In the seal groove of crankcase (162), filled polytetrafluoroethylene packing ring is close with what fluorubber "O"-ring was formed
Sealing (163), motor shaft (164) is contacted with seal (163) formation dynamic sealing；Between cylinder (100) and crankcase (162)
Filling fluorine fluorubber "O"-ring and the first sealing ring (102), crankcase (162) and the end cap of polytetrafluoroethylene gasket formation
(101) between, second sealing ring (103) of filling fluorine fluorubber "O"-ring and polytetrafluoroethylene gasket formation, forms static seal.
9. the medical first aid equipment according to any one of claim 1 to 8 with direct-furnish oxygen all-in-one it is characterised in that terminal
Oxygen determination magnetic valve (22), oxygen concentration sensor (23) are additionally provided with the pipeline between filter (21) and flow control valve (25)
With pressure sensor (24).
10. the straight method for supplying oxygen of a kind of medical first aid equipment, usage right requires the medical first aid equipment described in 1 to 9 any one
Carry out oxygen processed and oxygen supply with direct-furnish oxygen all-in-one it is characterised in that comprising the following steps：
Step one：Raw air carries out filtering, compresses through air compressor machine assembly (001), and the air after compression is through radiating subassembly
(002) cool down, the water that cooling produces is discharged through triple valve (5)；
Step 2：Air after cooling carries out gas through the adsorbent bed (11) that air cushioning tank (6) enters absorbent module (003) and divides
From the nitrogen that adsorbent bed (11) desorbs passes through denitrogen silencer (9) and discharges, and separates the oxygen obtaining and enters oxygen surge tank
(12)；
Step 3：Instability of flow that adsorbent bed (11) is exported by oxygen surge tank (12), assume periodically variable oxygen and turn
Turn to pressure stability, oxygen pressing pump (16) that the oxygen of stability of flow is input in oxygen pressing assembly (004) carries out oxygen
Supercharging；
Step 4：Oxygen after supercharging enters oxygen storage tank (18), and the oxygen in oxygen storage tank (18) is from its oxygen exhaust outlet warp
Ultimate filter (21), flow control valve (25), flowmeter (26) directly use for medical first aid equipments such as lung ventilators afterwards.
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| CN201611010903.3A CN106379863B (en) | 2016-11-17 | 2016-11-17 | A kind of medical first aid equipment direct-furnish oxygen all-in-one machine and its straight method for supplying oxygen |
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| CN111792626B (en) * | 2020-08-12 | 2024-06-11 | 成都洛子科技有限公司 | Oxygen supply equipment for oxygen production |
| CN113251700A (en) * | 2021-05-12 | 2021-08-13 | 成都绿建工程技术有限公司 | 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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