CN101244306A - Control method for flow capacity and oxygen concentration of breathing machine, and device thereof - Google Patents
Control method for flow capacity and oxygen concentration of breathing machine, and device thereof Download PDFInfo
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- CN101244306A CN101244306A CNA2008100197175A CN200810019717A CN101244306A CN 101244306 A CN101244306 A CN 101244306A CN A2008100197175 A CNA2008100197175 A CN A2008100197175A CN 200810019717 A CN200810019717 A CN 200810019717A CN 101244306 A CN101244306 A CN 101244306A
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Abstract
The invention relates to a controlling method of ventilator flow rate and the oxygen concentration, as well as the apparatus, comprising a circuit control panel (1), a major solenoid valve (8), a flow regulating valve (9) for the major solenoid, a minor solenoid valve (6), a flow regulating valve (7) for the minor solenoid valve, a number 3 solenoid valve (4), a flow regulating valve (5) for number 3 solenoid valve, and a venturi device, wherein the flow regulating valve (9) for the major solenoid is connected with the major solenoid valve (8) through an intake port (11); flow regulating valve (7) for the minor solenoid valve is connected with the minor solenoid valve (6) through an intake port (12); the flow regulating valve (5) for number 3 solenoid valve is connected with the number 3 solenoid valve (4) through an intake port (13). The controlling method of ventilator flow rate and the oxygen concentration as well as the apparatus is characterized in that the flow in need is regulated by controlling the on-off time between the major solenoid valve (8) and the minor solenoid valve (6); the oxygen concentration is controlled by calculating the on-off time between the major solenoid valve (8) and the minor solenoid valve (6) together with the cooperation of the number 3 solenoid valve (4). The controlling method of ventilator flow rate and the oxygen concentration as well as the apparatus has the advantages of reduced synchronous reacting time, increased regulating accuracy, reduced manufacturing craft and cost.
Description
Technical field
The present invention relates to a kind of flow of respirator and the control method and the device thereof of oxygen concentration, specifically pass through the control of the make-to-break ratio time realization of control electromagnetic valve flow and oxygen concentration.
Background technology
At present in the prior art, for precision that increases adjusting and the class that promotes product, general high-grade respirator all adopts the proportioning valve technology, but this implementation has influenced the synchronous reaction time of synchronous respirator pattern such as SIPPV and SIMV, it has a relative hysteresis delay time than other method, its cost will exceed one times simultaneously, and is second-rate, limited its scope of application; Another common implementation is controlled by needle-valve exactly, the patent No. of announcing as in August, 2002 is ZL 01261459.9, in the patent of invention of " respirator spiral flow adjustable valve " by name, its principle is exactly that the aperture (at 0～120 °) of the needle of metering pin valve realizes the direct proportion of flow or oxygen concentration is regulated, but because needle-valve is pure mechanical technique, the processing precision direct influence of machinery the needle-valve range of error of regulating, in one batch product, the range of error of the parameter of regulating is bigger, its mounting process is complicated simultaneously, increase production cost, be difficult to satisfy the demand in present respirator market.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing regulative mode and provide a kind of simple in structure, cost is lower, do not influence synchronous breathing pattern the synchronous reaction time, reduce the range of error that parameter is regulated, directly adopt the electronically controlled mode of software to realize.
For achieving the above object, the present invention is achieved in that a kind of flow of respirator and the control method and the device thereof of oxygen concentration, it comprises circuit control panel 1, master solenoid 8, master solenoid flow control valve 9, inferior electromagnetic valve 6, inferior electromagnetic valve flow control valve 7,4, No. three electromagnetic valve flow control valves 5 of No. three electromagnetic valves, Venturi 10.Master solenoid flow control valve 9 is connected with master solenoid 8 by port, and inferior electromagnetic valve flow control valve 7 is connected with time electromagnetic valve 6 by port, and No. three electromagnetic valve flow control valve 5 is connected with No. three electromagnetic valves 4 by port.
Control method of the present invention is directly regulated needed flow by the control master solenoid 8 and the make-and-break time of time electromagnetic valve 6; By calculating the make-and-break time of master solenoid 8 and time electromagnetic valve 6, cooperate with No. three electromagnetic valves 4 again oxygen concentration is controlled.
Adopt the beneficial effect that is produced after the above technical scheme: adopt the control mode of electromagnetic valve group, wherein two groups of electromagnetic valves (main valve and time valve) are controlled flow (tidal volume), the adjusting of another group solenoid control oxygen concentration.Shorten the synchronous reaction time of respirator, reduced cost simultaneously.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is a theory structure sketch map of the present invention.
The specific embodiment
According to shown in Figure 1, the present invention. a kind of flow of respirator and the control method of oxygen concentration and device thereof, it comprises circuit control panel 1, master solenoid 8, master solenoid flow control valve 9, inferior electromagnetic valve 6, inferior electromagnetic valve flow control valve 7,4, No. three electromagnetic valve flow control valves 5 of No. three electromagnetic valves, Venturi 10.Master solenoid flow control valve 9 is connected with master solenoid 8 by port, and inferior electromagnetic valve flow control valve 7 is connected with time electromagnetic valve 6 by port, and No. three electromagnetic valve flow control valve 5 is connected with No. three electromagnetic valves 4 by port.
Control method of the present invention is directly regulated needed flow by the control master solenoid 8 and the make-and-break time of time electromagnetic valve 6; By calculating the make-and-break time of master solenoid 8 and time electromagnetic valve 6, cooperate with No. three electromagnetic valves 4 again oxygen concentration is controlled.
The present invention is applicable to the respirator that portable equal-volume is less, and the specific embodiment is as follows:
One, to the control of flow (tidal volume), control by two electromagnetic valves (main valve 8 and time valve 6), these two electromagnetic valves form one group 3, at first at air inlet port 11, the 12 difference connection traffic control valves 9,7 of two electromagnetic valves, the make-and-break time of default two electromagnetic valves 8,6 is 0～1.2 second; The re-adjustment aperture, when the make-and-break time of main valve 8 was set at 1 second, flow control valve 9 was set in 750 milliliters tolerance, and when the make-and-break time of inferior valve 6 was set at 1 second, flow control valve 7 was set in 350 milliliters tolerance.If need 550 milliliters flow (tidal volume) now, so only need circuit control panel 1 control main valve 8 and time valve 6 all to be adjusted to 50% make-and-break time and get final product (being 0.5 second), enter Venturi 10 by the oxygen remix that comes out after regulating.
Two: to the control of oxygen concentration, by 4 controls 2 of an electromagnetic valve, at air inlet port 13 connection traffic control valves 5, flow control valve 5 is set in 150 milliliters tolerance, the control time of electromagnetic valve 4 and two electromagnetic valves 8 controlling flow (tidal volume), 6 is relevant, its make-and-break time is (a-b)/50 * t of make-and-break time the greater of these two electromagnetic valves, such as two electromagnetic valves 8 controlling flow (tidal volume) now, 6 make-and-break time is 1 second and 0.7 second, t=1 so, the range of accommodation of oxygen concentration is 50%～100%, b=100-50 so, need 60% oxygen concentration this moment, a=60 so, the make-and-break time of the electromagnetic valve 4 of control oxygen concentration is (60-50)/50 * 1=0.5 second.
Claims (2)
1. the control method of the flow of a respirator and oxygen concentration and device thereof, it is characterized in that it comprises circuit control panel (1), master solenoid (8), master solenoid flow control valve (9), inferior electromagnetic valve (6), inferior electromagnetic valve flow control valve (7), No. three electromagnetic valves (4), No. three electromagnetic valve flow control valves (5), Venturi (10).Master solenoid flow control valve (9) is connected with master solenoid (8) by air inlet port (11), inferior electromagnetic valve flow control valve (7) is connected with time electromagnetic valve (6) by air inlet port (12), and No. three electromagnetic valve flow control valves (5) are connected with No. three electromagnetic valves (4) by air inlet port (13).
2. according to the flow of the described a kind of respirator of claim 1 and the control method and the device thereof of oxygen concentration, it is characterized in that directly regulating needed flow by the control master solenoid (8) and the make-and-break time of time electromagnetic valve (6); By calculating the make-and-break time of master solenoid (8) and time electromagnetic valve (6), cooperate with No. three electromagnetic valves (4) again oxygen concentration is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100197175A CN101244306A (en) | 2008-03-13 | 2008-03-13 | Control method for flow capacity and oxygen concentration of breathing machine, and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100197175A CN101244306A (en) | 2008-03-13 | 2008-03-13 | Control method for flow capacity and oxygen concentration of breathing machine, and device thereof |
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| Publication Number | Publication Date |
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| CN101244306A true CN101244306A (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100197175A Pending CN101244306A (en) | 2008-03-13 | 2008-03-13 | Control method for flow capacity and oxygen concentration of breathing machine, and device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874064A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Automatic respirator production line turnover device |
| CN104874085A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Self-test method of oxygen electromagnetic valve set for respirators and respirator |
| CN105288805A (en) * | 2015-11-16 | 2016-02-03 | 田春燕 | Breathing apparatus controlled through breath |
| CN105363105A (en) * | 2014-08-15 | 2016-03-02 | 深圳市安保科技有限公司 | Pneumatic electrically-controlled ventilation system and ventilation method thereof |
| CN105999577A (en) * | 2016-07-22 | 2016-10-12 | 中国航空工业集团公司西安飞机设计研究所 | Oxygen source control method |
| CN107376089A (en) * | 2017-07-31 | 2017-11-24 | 河南亚都实业有限公司 | A kind of oxygen concentration adjustable oxygen mask |
-
2008
- 2008-03-13 CN CNA2008100197175A patent/CN101244306A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874064A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Automatic respirator production line turnover device |
| CN104874085A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Self-test method of oxygen electromagnetic valve set for respirators and respirator |
| CN104874064B (en) * | 2014-02-28 | 2018-07-06 | 北京谊安医疗系统股份有限公司 | Lung ventilator automatic assembly line turnover device |
| CN104874085B (en) * | 2014-02-28 | 2018-11-16 | 北京谊安医疗系统股份有限公司 | The self checking method and ventilator of oxygen solenoid valve for ventilator |
| CN105363105A (en) * | 2014-08-15 | 2016-03-02 | 深圳市安保科技有限公司 | Pneumatic electrically-controlled ventilation system and ventilation method thereof |
| CN105363105B (en) * | 2014-08-15 | 2017-09-05 | 深圳市安保科技有限公司 | A kind of Pneumatic electrical control aerating system and its vent method |
| CN105288805A (en) * | 2015-11-16 | 2016-02-03 | 田春燕 | Breathing apparatus controlled through breath |
| CN105999577A (en) * | 2016-07-22 | 2016-10-12 | 中国航空工业集团公司西安飞机设计研究所 | Oxygen source control method |
| CN107376089A (en) * | 2017-07-31 | 2017-11-24 | 河南亚都实业有限公司 | A kind of oxygen concentration adjustable oxygen mask |
| CN107376089B (en) * | 2017-07-31 | 2018-06-26 | 河南亚都实业有限公司 | A kind of oxygen concentration adjustable oxygen mask |
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Open date: 20080820 |