CN105911132A - Portable medical detection device for oil content of compressed air - Google Patents
Portable medical detection device for oil content of compressed air Download PDFInfo
- Publication number
- CN105911132A CN105911132A CN201610507017.5A CN201610507017A CN105911132A CN 105911132 A CN105911132 A CN 105911132A CN 201610507017 A CN201610507017 A CN 201610507017A CN 105911132 A CN105911132 A CN 105911132A
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- China
- Prior art keywords
- compressed air
- controller
- portable medical
- detecting device
- amount detecting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 title abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 11
- 230000009466 transformation Effects 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 27
- 239000003921 oil Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003444 anaesthetic effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000004879 turbidimetry Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a portable medical detection device for oil content of compressed air. The portable medical detection device comprises a PID sensor, a signal amplifier, a controller, a display module, a voltage conversion module and a lithium battery, wherein the lithium battery is used for supplying power to the PID sensor, the signal amplifier, the controller and the display module through the voltage conversion module; the PID sensor is connected with the controller through the signal amplifier; the display module is connected with the controller. The portable medical detection device for oil content of compressed air can solve the problem of complex operation.
Description
Technical field
The present invention relates to medical compressed air oil-containing amount detecting device.
Background technology
Medical oxygen supply system is also known as life-support system, and the most medical malleation compressed air is that this is
A kind of gas in system, in this gas oil content be evaluate one of this gas products quality important
Index, specifies oil content: 0.1/Nm in GB 50571-20123, existing gas oil-containing
Measure surely to be typically necessary by the way of suitable and be quantitatively transferred to absorbing liquid or adsorbing material, then
Utilizing analytical equipment to quantitative determine, main measuring methods has infrared spectrophotometer, ultraviolet
Spectrophotography, gravimetric method, turbidimetry, gas chromatography, detection trachea method etc., there is no specially
The instrument and equipment of door directly measures the oil content of medical compressed air gas.
Medical compressed air is mainly used in the respirator of patient, anesthetic machine etc. provides malleation empty
Gas supports patient respiration or surgery anesthesia, also participates in infant nursing, sucks nebulae inhalation, outward
Section's tool drives, medical equipment is dried, dental equipment power etc., therefore the residual entail dangers to of oil
Health and the safe and reliable operation of equipment to patient, it is known that patient is as sucked oil-containing for a long time
The blockings such as air is easy to get pneumonia, and oil can cause respirator, anesthetic machine sensor, operating valve were lost efficacy
Damage, increase equipment fault frequency, thus pay the maintenance cost of costliness.
When being mainly derived from compressor compresses gas of oil point in the middle of medical compressed air gas, or
Container containing medium, the pollution to it of the conveyance conduit material, and nytron in raw air
Gathering of thing, its existence can be with liquid particle exist aerosol form or with gaseous state
The oil vapour form that macromole hydrocarbon exists.Owing to oilless (oil free) compressor is expensive, and national standard
Still allowing to use micro-hydraulic shrinking machine in systems, the most most of medical institutions still select containing oil pressure
Contracting machine is as air machinery, although take other measure in systems to improve the product of gas
Matter, but as Support in operation is improper, still suffer from the underproof risk of GAS QUALITY, thus
Jeopardize the safe operation of the healthy of patient and equipment.
Presently, there are following deficiency:
1, gas sampling and pre-treatment operation complexity, can not quickly detect；
2, assay accuracy is more by preposition sampling and process influence factor, to detection behaviour
Author's level and skill requirement are higher；
Though 3, gas detecting tube method can quickly detect, due to the restriction of Cleaning Principle, the most partly
Quantitative determination, is only capable of substantially determining oil concentration scope in mensuration gas；
4, traditional analytical equipment volume is big, mobile difficulty, is not suitable for system installation site inspection
Survey；
5, cost of determination is costly.
Summary of the invention
It is an object of the invention to propose a kind of portable medical compressed air oil-containing amount detection device
Putting, it can solve the problem that operation is complicated.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of portable medical compressed air oil-containing amount detecting device, it include PID sensor,
Signal amplifier, controller, display module, voltage transformation module and lithium battery；Described lithium electricity
Pond is PID sensor, signal amplifier, controller and display module by voltage transformation module
Power supply, PID sensor is connected with controller by signal amplifier, display module and controller
Connect.
Preferably, described PID sensor includes drive circuit, ionization chamber and described for irradiating
The uviol lamp of ionization chamber, described ionization chamber has gas access and gas outlet；Described voltage turns
Die change block includes the first voltage conversion circuit, the second voltage conversion circuit and tertiary voltage conversion electricity
Road；Lithium battery is drive circuitry by the first voltage conversion circuit, drives electricity so that described
Road direction uviol lamp output pulse frequency is that the voltage signal of 90-110KHz drives uviol lamp work；
Lithium battery is more than the DC voltage of 200V by the second voltage conversion circuit to ionization chamber output；
Lithium battery is that signal amplifier, controller and display module supply by tertiary voltage change-over circuit
Electricity.
Preferably, the model of described controller is ADuCM361.
Preferably, described display module is LCM display.
Preferably, this portable medical compressed air oil-containing amount detecting device also includes and controller
The operation button connected.
Preferably, this portable medical compressed air oil-containing amount detecting device also includes and controller
The LED light connected.
Preferably, a low pass filter it is also associated with between signal amplifier and controller.
Compared to existing technology, the beneficial effects of the present invention is:
1, without carrying out any sampling pre-treatment during detection, detect easy and simple to handle；
2, the sampling preposition process interference factor to testing result is completely eliminated, it is ensured that inspection
Survey the accurate of result and credibility；
3, can accurate quantitative analysis intuitively show the oil content of detected gas, it is ensured that source of the gas quality
Directly perceived and safety；
4, detection node and cycle can be made by oneself by user, to detection environment, place and inspection
Survey operator all without particular/special requirement；
5, no consumption product in detection, secondary check fee is with low cost.
Accompanying drawing explanation
Fig. 1 is the portable medical compressed air oil-containing amount detection device of present pre-ferred embodiments
The circuit diagram put.
Detailed description of the invention
Below, in conjunction with accompanying drawing and detailed description of the invention, the present invention is described further:
As it is shown in figure 1, a kind of portable medical compressed air oil-containing amount detecting device, it includes
PID sensor, signal amplifier, low pass filter, LED light, operation button, control
Device processed, display module, voltage transformation module and lithium battery.Described lithium battery is changed by voltage
Module is PID sensor, signal amplifier, low pass filter, LED light, operation
Button, controller and display module are powered, and PID sensor passes sequentially through signal amplifier, low
Bandpass filter is connected with controller, LED light, operation button and display module all with control
Device processed connects.The present embodiment uses lithium battery power supply, it is achieved portability.
Concrete, described PID sensor includes drive circuit, ionization chamber and described for irradiating
The uviol lamp of ionization chamber, described ionization chamber has gas access and gas outlet；Described voltage turns
Die change block includes the first voltage conversion circuit, the second voltage conversion circuit and tertiary voltage conversion electricity
Road；Lithium battery is drive circuitry by the first voltage conversion circuit, drives electricity so that described
Road direction uviol lamp output pulse frequency is that the voltage signal of 90-110KHz drives uviol lamp work；
Lithium battery is more than the DC voltage of 200V by the second voltage conversion circuit to ionization chamber output；
Lithium battery is that signal amplifier, controller and display module supply by tertiary voltage change-over circuit
Electricity.The pulse frequency of the present embodiment is preferably 100KHz.
The controller of the present embodiment has analog-digital converter (ADC) and memorizer, adoptable
Model be the controller of ADuCM361, i.e. the present embodiment be low-power consumption precision analog microcontroller
ADuCM361.Display module can use LCM display.
Below, the principle process of the present embodiment is illustrated.
1, ultimate principle:
Tested medical compressed air gas enters into PID sensor (optic ionized sensor) meeting
Producing current signal, amplify and after low-pass filtering through amplifier, this voltage signal enters low merit
Consumption precision analog microcontroller ADuCM361 signal acquisition circuit, utilizes low-power consumption precision analog
This voltage signal is turned by 24 ADC that microcontroller ADuCM361 carries under program control
Change digital signal into, calculate the oil content of surveyed gas, deliver on LCM display aobvious
Gas oil content is shown.
2, signals collecting
It is based on containing band in oily substance that PID sensor measures compressed air Oil in circulating gas content
Conjugated double bond and the hydrocarbon compound of phenyl ring, they have characteristic absorption at ultraviolet region,
And meet langbobier law.When the gas molecule of the ionization chamber entering into PID sensor is inhaled
Ionization will be produced when receiving high energy ultraviolet light, produce electronics and ion.Charged gas electric charge passes through
Electrode collecting board produces weak current, amplifies and after low-pass filtering through signal amplifier circuit, its
Signal voltage exports low-power consumption precision analog microcontroller.
2, signal conversion
Low-power consumption precision analog microcontroller circuit ADuCM361 is integrated microprocessor,
24 sigma-delta pattern number converters of built-in integrated monokaryon programmable A DC output speed
(ADC), 32 ARM CortexTM-M3 processor and Flash/EE memorizer, and can battery
Power supply.ADuCM361 not only can be directly connected to external precision sensor, its programmable A DC
The letter that signal gathering unit is exported by 24 sigma-deltas pattern number converter (ADC) of output speed
Number voltage carries out data acquisition and changes, and it fully meets system high-precision requirement.
3, the design of systems soft ware part and peripheral circuit
After system switches on power, system initialization, and start System self-test, after self-inspection is passed through,
Display OK enters to be checked.User detection sampling key in push button, system is certainly
Dynamic beginning is sampled, and system continuous sampling 10 times is averaged through computing and shown result at LCM
On display.Its test result also can preserve in memory, for testing the statistical analysis of system.
The present embodiment can facilitate containing of the gas of different nodes in periodically or non-periodically detecting system
Oil mass, it is ensured that the quality of gas meets national standard.
It will be apparent to those skilled in the art that can technical scheme as described above and structure
Think, make other various corresponding changes and deformation, and all these changes and deformation
Within all should belonging to the protection domain of the claims in the present invention.
Claims (8)
1. a portable medical compressed air oil-containing amount detecting device, it is characterised in that bag
Include PID sensor, signal amplifier, controller, display module, voltage transformation module and lithium
Battery；Described lithium battery is PID sensor, signal amplifier, control by voltage transformation module
Device processed and display module are powered, and PID sensor is connected with controller by signal amplifier, aobvious
Show that module is connected with controller.
2. portable medical compressed air oil-containing amount detecting device as claimed in claim 1, its
Being characterised by, described PID sensor includes drive circuit, ionization chamber and for irradiating described electricity
From the uviol lamp of room, described ionization chamber has gas access and gas outlet；Described voltage is changed
Module includes the first voltage conversion circuit, the second voltage conversion circuit and tertiary voltage conversion electricity
Road；Lithium battery is drive circuitry by the first voltage conversion circuit, drives electricity so that described
Road direction uviol lamp output pulse frequency is that the voltage signal of 90-110KHz drives uviol lamp work；
Lithium battery is more than the DC voltage of 200V by the second voltage conversion circuit to ionization chamber output；
Lithium battery is that signal amplifier, controller and display module supply by tertiary voltage change-over circuit
Electricity.
3. portable medical compressed air oil-containing amount detecting device as claimed in claim 2,
It is characterized in that, pulse frequency is preferably 100Khz.
4. portable medical compressed air oil-containing amount detecting device as claimed in claim 1, its
Being characterised by, the model of described controller is ADuCM361.
5. portable medical compressed air oil-containing amount detecting device as claimed in claim 1,
It is characterized in that, described display module is LCM display.
6. portable medical compressed air oil-containing amount detecting device as claimed in claim 1,
It is characterized in that, also include the operation button being connected with controller.
7. portable medical compressed air oil-containing amount detecting device as claimed in claim 1,
It is characterized in that, also include the LED light being connected with controller.
8. portable medical compressed air oil-containing amount detecting device as claimed in claim 1,
It is characterized in that, between signal amplifier and controller, be also associated with a low pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507017.5A CN105911132A (en) | 2016-06-28 | 2016-06-28 | Portable medical detection device for oil content of compressed air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507017.5A CN105911132A (en) | 2016-06-28 | 2016-06-28 | Portable medical detection device for oil content of compressed air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105911132A true CN105911132A (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610507017.5A Pending CN105911132A (en) | 2016-06-28 | 2016-06-28 | Portable medical detection device for oil content of compressed air |
Country Status (1)
| Country | Link |
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| CN (1) | CN105911132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398366A (en) * | 2018-03-07 | 2018-08-14 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of power plant's compressed air gaseous mass comprehensive detection and analysis system and method |
| WO2018196575A1 (en) * | 2017-04-24 | 2018-11-01 | 无锡天迈科学仪器有限公司 | Dual-mode pressure reducer |
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|---|---|---|---|---|
| CN2872498Y (en) * | 2006-03-17 | 2007-02-21 | 中国科学院安徽光学精密机械研究所 | Data collecting and processing system for optical ion signal |
| CN103424465A (en) * | 2013-07-26 | 2013-12-04 | 华瑞科学仪器(上海)有限公司 | Intelligent PID sensor module |
| CN105136992A (en) * | 2015-09-15 | 2015-12-09 | 顾金华 | VOC (Volatile Organic Compound) concentration online monitoring device and VOC concentration online monitoring method thereof |
| CN105158325A (en) * | 2015-07-30 | 2015-12-16 | 安徽中杰信息科技有限公司 | Photoionization detector |
-
2016
- 2016-06-28 CN CN201610507017.5A patent/CN105911132A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2872498Y (en) * | 2006-03-17 | 2007-02-21 | 中国科学院安徽光学精密机械研究所 | Data collecting and processing system for optical ion signal |
| CN103424465A (en) * | 2013-07-26 | 2013-12-04 | 华瑞科学仪器(上海)有限公司 | Intelligent PID sensor module |
| CN105158325A (en) * | 2015-07-30 | 2015-12-16 | 安徽中杰信息科技有限公司 | Photoionization detector |
| CN105136992A (en) * | 2015-09-15 | 2015-12-09 | 顾金华 | VOC (Volatile Organic Compound) concentration online monitoring device and VOC concentration online monitoring method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 北京工业大学教务处, 北京邮电大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196575A1 (en) * | 2017-04-24 | 2018-11-01 | 无锡天迈科学仪器有限公司 | Dual-mode pressure reducer |
| US11415489B2 (en) | 2017-04-24 | 2022-08-16 | Wuxi Techmac Scientific Instrument Co., Ltd | Dual-mode high pressure diffuser |
| CN108398366A (en) * | 2018-03-07 | 2018-08-14 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of power plant's compressed air gaseous mass comprehensive detection and analysis system and method |
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Application publication date: 20160831 |