CN106595953A - Medical oxygen metering instrument metering standard device - Google Patents
Medical oxygen metering instrument metering standard device Download PDFInfo
- Publication number
- CN106595953A CN106595953A CN201611190664.4A CN201611190664A CN106595953A CN 106595953 A CN106595953 A CN 106595953A CN 201611190664 A CN201611190664 A CN 201611190664A CN 106595953 A CN106595953 A CN 106595953A
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- Prior art keywords
- pressure
- low
- gauge
- connection
- calibrating
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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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Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000001301 oxygen Substances 0.000 title claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 24
- 238000012795 verification Methods 0.000 claims abstract description 42
- 238000005259 measurement Methods 0.000 claims description 17
- 150000002926 oxygen Chemical class 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 7
- 239000000872 buffer Substances 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010010219 Compulsions Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
- Measuring Volume Flow (AREA)
Abstract
A medical oxygen metering instrument metering standard device belongs to the technical field of medical apparatuses. The medical oxygen metering instrument metering standard device comprises an oxygen steel cylinder with cylinder pressure lower than 5MPa, a power supply and an oxygen pipe. The medical oxygen metering instrument metering standard device is characterized in that the oxygen pipe comprises a low-pressure flowmeter calibrating and verifying pipe, a high-pressure floater flowmeter calibrating and verifying pipe, a low-pressure gauge calibrating and verifying pipe with pressure of 0-4MPa, and a middle-and-high-pressure gauge calibrating and verifying pipe with pressure in 4-30MPa; the oxygen steel cylinder is connected with an air inlet; the oxygen pipe is leaded out of an air inlet pressure sensor and is connected with the four calibrating and verifying pipes; and the four calibrating and verifying pipes are connected in parallel. The medical oxygen metering instrument metering standard device has advantages of combining a pressure verification table with a flow standard device, realizing integration and high portability in metering, realizing higher precision, high vibration resistance and higher tilting resistance through advanced electronic equipment, avoiding field assembling, and greatly improving working efficiency and convenience.
Description
Technical field
The present invention relates to medical oxygen class measurement instrument metrological standard unit, specifically by pressure calibration and flow
Standard carries out integrated design, while the higher medical oxygen class measurement instrument metrological standard unit of precision, belongs to Medical treatment device
Tool technical field.
Background technology
Currently for flexible member formula general purpose pressure gauge, buoy type oxygen absorber and medical oxygen that the places such as hospital use
The measurement instruments such as gas inhaler all list state compulsion calibrating catalogue, each province, metering scientific research institutes of city existing standard device point in
It is not independent pressure calibration and independent flow standard device, pressure calibration portability used difference and Assembling time
Long, pointer precision pressure gauge changes trouble, and flow standard device used is suspended body flowmeter, and service life is short, Jing often to change,
Simultaneously the high precision of standard utensil, can not have vibrations and topple over during carrying, and to the verification at scene many inconvenience is brought.
The content of the invention
For above-mentioned deficiency, the invention provides medical oxygen class measurement instrument metrological standard unit, the medical oxygen
Class measurement instrument measuring accuracy calibration equipment unites two into one pressure calibration and flow standard device, realize detection integration, just
Taking, using advanced electronic equipment, precision it is higher and it is shatter-proof it is anti-topple over, while exempting Assembling.
The present invention is achieved by the following technical solutions：Medical oxygen class measurement instrument metrological standard unit, including bottle
Pressure is more than oxygen bottle, power supply and the oxygen pipeline of 5MPa, it is characterised in that：Described oxygen pipeline is examined including lowpressure stream gauge
Surely pipeline, high pressure float flow meter calibrating verification pipeline, the low pressure gauge calibrating verification pipeline of below 0-4MPa and 4- are verified
The mesohigh pressure gauge calibrating verification pipeline of 30MPa, described oxygen bottle is connected with intake interface, and pipeline is passed by admission pressure
Sensor connects above-mentioned four calibratings verification pipeline after drawing, in parallel mode connects four described calibrating verification pipelines.
In described lowpressure stream gauge calibrating verification pipeline, the input of decompressor 1 connection air inlet pressure sensor, outfan
Connection terminal pressure sensor, terminal pressure sensor connection flow gauge terminal, lowpressure stream gauge adopts inserted mode connection flow
Gauge terminal interface, the delivery outlet dedicated pipe of lowpressure stream gauge is connected to proving flowmeter import, proving flowmeter outlet and mark
Constant current quantity sensor connects.
In described high pressure float flow meter calibrating verification pipeline, float flow meter pet valve input connection admission pressure
Sensor, outfan connection flowrator interface, because high pressure float flow meter carries decompressor, its operating pressure is
Between 1.0-15MPa, high pressure float flow meter connects flowrator interface using inserted mode, high pressure float flow meter
Delivery outlet dedicated pipe is connected to proving flowmeter import, and proving flowmeter outlet is connected with calibrational capacity sensor.
High and low voltage exchange valve input connects air inlet pressure sensor, and outfan connects the low pressure of below 0-4MPa
The mesohigh pressure gauge calibrating verification pipeline of table calibrating verification pipeline and 4-30MPa.
In the low pressure gauge calibrating verification pipeline of described below 0-4MPa, the input of decompressor 2 connects high and low crush-cutting
Valve is changed, outfan connection low pressure shows sensor, and low pressure shows sensor connection low-pressure meter pet valve, low-pressure meter examination
Valve connection low-pressure meter nominal pressure sensor is tested, low-pressure meter nominal pressure sensor output connects respectively low pressure meter connector and low
Pressure table vent valve.
In the mesohigh pressure gauge calibrating verification pipeline of described 4-30MPa, the input of decompressor 3 connects high and low crush-cutting
Valve is changed, outfan connection pneumatic type gas booster, pneumatic type gas booster connection high pressure energy accumulating buffer, high pressure energy accumulating delays
Rush device connection boost pressure and show sensor, boost pressure shows sensor connection high pressure gauge pet valve, and high pressure gauge pet valve connects
High pressure gauge nominal pressure sensor is connect, high pressure gauge nominal pressure sensor output connects high pressure meter connector respectively and high pressure gauge is put
Air valve.
Setting in verification standard set-up, pressure precision includes 0.4 grade, 1.6 grades, 2.5 grades, four accuracy classes such as 4 grades；Stream
Accuracy of measurement includes 1.6 grades, 2.5 grades, three accuracy classes such as 4 grades.
Usefulness of the present invention is, compared with prior art, the medical oxygen class measurement instrument measurement criteria of the present invention
Device, pressure calibration and flow standard device are united two into one, and realize detection integration, portability, are set using advanced electronics
It is standby, precision it is higher and it is shatter-proof it is anti-topple over, while exempting Assembling, substantially increase work efficiency and convenience.
Description of the drawings
Accompanying drawing 1 is design principle figure of the present invention, and accompanying drawing 2 is air inlet pressure sensor partial enlarged drawing of the present invention.
In figure, 1 intake interface, 2 air inlet pressure sensors, 3 decompressors 1,4 terminal pressure sensors, 5 effusion meter terminals connect
Mouth, 6 proving flowmeter imports, 7 calibrational capacity sensors, 8 float flow meter pet valves, 9 flowrator interfaces, it is 10 high,
Low pressure switching valve, 11 decompressors 2,12 low pressures show sensor, 13 low-pressure meter pet valves, 14 low-pressure meter nominal pressures sensing
Device, 15 low pressure meter connectors, 16 low-pressure meter vent valves, 17 decompressors 3,18 pneumatic type gas boosters, 19 high pressure energy accumulating buffers,
20 boost pressures show sensor, 21 high pressure gauge pet valves, 22 high pressure gauge nominal pressure sensors, 23 high pressure meter connectors, 24 high
Pressure table vent valve
Specific embodiment
Medical oxygen class measurement instrument metrological standard unit, including bottle pressure is more than the oxygen bottle of 5MPa, power supply and oxygen
Pipeline, it is characterised in that：Described oxygen pipeline includes lowpressure stream gauge calibrating verification pipeline, high pressure float flow meter calibrating school
The mesohigh pressure gauge calibrating verification pipeline of pipeline, the low pressure gauge calibrating verification pipeline of below 0-4MPa and 4-30MPa is tested,
Described oxygen bottle is connected with intake interface 1, and pipeline connects above-mentioned four calibratings verification after being drawn by air inlet pressure sensor 2
Pipeline, in parallel mode connects four described calibrating verification pipelines.
In described lowpressure stream gauge calibrating verification pipeline, the input of decompressor 1 (3) connection air inlet pressure sensor 2 is defeated
Go out end and connect terminal pressure sensor 4, the connection flow gauge terminal of terminal pressure sensor 4, lowpressure stream gauge adopts inserted mode
Connection flow gauge terminal interface 5, the delivery outlet dedicated pipe of lowpressure stream gauge is connected to proving flowmeter import 6, proving flowmeter
Outlet is connected with calibrational capacity sensor 7, and described terminal pressure sensor 4 gathers and show lowpressure stream gauge desirable pressure,
Described calibrational capacity sensor 7 gathers and shows actual standard flow, with actual standard flow and lowpressure stream gauge reading phase
Relatively, you can whether calibrating and verification measured stream gauge are qualified.
In described high pressure float flow meter calibrating verification pipeline, the input of float flow meter pet valve 8 connection air inlet pressure
Force transducer 2, outfan connection flowrator interface 9, because high pressure float flow meter carries decompressor, its operating pressure
For between 1.0-15MPa, high pressure float flow meter is using inserted mode connection flowrator interface 9, high pressure buoy flow
The delivery outlet dedicated pipe of meter is connected to proving flowmeter import 6, and proving flowmeter outlet is connected with calibrational capacity sensor 7, institute
The calibrational capacity sensor 7 stated gathers and shows actual standard flow, with actual standard flow compared with lowpressure stream gauge reading
Compared with, you can whether calibrating and verification measured stream gauge are qualified.
The input of high and low voltage exchange valve 10 connects air inlet pressure sensor 2, and outfan connects the low pressure pressure of below 0-4MPa
The mesohigh pressure gauge calibrating verification pipeline of power table calibrating verification pipeline and 4-30MPa.
In the low pressure gauge calibrating verification pipeline of described below 0-4MPa, the connection of the input of decompressor 2 (11) is high and low
Pressure switching valve 10, outfan connection low pressure shows sensor 12, and low pressure shows the connection low pressure watch test of sensor 12
Valve 13, the connection low-pressure meter nominal pressure of low-pressure meter pet valve 13 sensor 14, the outfan of low-pressure meter nominal pressure sensor 14 point
Not Lian Jie low pressure meter connector 15 and low-pressure meter vent valve 16, the described high and low voltage exchange valve 10 of switching adjusts described to low-pressure side
Decompressor 2 (11), pressure is adjusted to 0-4MPa, described low pressure shows that sensor 12 gathers and show low pressure gauge
Desirable pressure, low pressure gauge is filled on described low pressure meter connector 15, opens described low-pressure meter pet valve 13, described
Low-pressure meter nominal pressure sensor 14 gathers and shows actual standard low pressure, adjusts described low-pressure meter vent valve 16, can
Low pressure gauge is set to examine and determine and verify on each pressure stage, with actual standard low pressure compared with low pressure meter reading
Compared with, you can whether qualified examine and determine and verify the pressure gauge.
In the mesohigh pressure gauge calibrating verification pipeline of described 4-30MPa, the connection of the input of decompressor 3 (17) is high and low
Pressure switching valve 10, outfan connection pneumatic type gas booster 18, the connection high pressure energy accumulating buffer of pneumatic type gas booster 18
19, the connection boost pressure of high pressure energy accumulating buffer 19 shows sensor 20, and boost pressure shows the connection high pressure gauge examination of sensor 20
Test valve 21, the connection high pressure gauge nominal pressure of high pressure gauge pet valve 21 sensor 22, the outfan of high pressure gauge nominal pressure sensor 22
Connect high pressure meter connector 23 and high pressure gauge vent valve 24 respectively, the described high and low voltage exchange valve 10 of switching adjusts institute to high-pressure side
The decompressor 3 (17) stated, using described pneumatic type gas booster 18, pressure in described high pressure energy accumulating buffer 19 is increased
4-30MPa is depressed into, to meet the calibrating to below 30MPa high pressure gauges and verification condition, described boost pressure shows sensor
20 collections and the high-pressure manometer desirable pressure of display supercharging, high-pressure manometer are filled on described high pressure meter connector 23, are opened
Described high pressure gauge pet valve 21 is opened, described high pressure gauge nominal pressure sensor 22 gathers and show actual standard high pressure pressure
Power, adjusts described high pressure gauge vent valve 24, and high-pressure manometer can be made to examine and determine and verify on each pressure stage, uses actual standard
High-pressure is compared with high-pressure meter reading, you can whether qualified examine and determine and verify the pressure gauge.
Setting in verification standard set-up, pressure precision includes 0.4 grade, 1.6 grades, 2.5 grades, four accuracy classes such as 4 grades；Stream
Accuracy of measurement includes 1.6 grades, 2.5 grades, three accuracy classes such as 4 grades, and selection pressure table and effusion meter are distinguished in calibrating and verification
Mark accuracy class, embedded-type electric brain system can automatic discrimination institute be accredited and whether the pressure gauge that verifies and effusion meter close
Lattice, built-in printer will automatically get label, and system automatically saves the data for examining and determine and verifying pressure gauge and effusion meter, with
It is for future reference.
Usefulness of the present invention is, compared with prior art, the medical oxygen class measurement instrument measurement criteria of the present invention
Device, pressure calibration and flow standard device are united two into one, and realize detection integration, portability, are set using advanced electronics
It is standby, precision it is higher and it is shatter-proof it is anti-topple over, while exempting Assembling, substantially increase work efficiency and convenience.
For the ordinary skill in the art, teaching of the invention, without departing from the present invention principle with
In the case of spirit, changes, modifications that embodiment is carried out, replace and modification still fall within protection scope of the present invention it
It is interior.
Claims (3)
1. medical oxygen class measurement instrument metrological standard unit, including bottle pressure is more than oxygen bottle, power supply and the oxygen hose of 5MPa
Road, it is characterised in that：Described oxygen pipeline includes lowpressure stream gauge calibrating verification pipeline, the calibrating verification of high pressure float flow meter
The mesohigh pressure gauge calibrating verification pipeline of pipeline, the low pressure gauge calibrating verification pipeline of below 0-4MPa and 4-30MPa, institute
The oxygen bottle stated is connected with intake interface (1), and pipeline connects above-mentioned four calibratings school after being drawn by air inlet pressure sensor (2)
Pipeline is tested, in parallel mode connects four described calibrating verification pipelines.
2. medical oxygen class measurement instrument metrological standard unit as claimed in claim 1, it is characterised in that described lowpressure stream
In gauge calibrating verification pipeline, the input of decompressor 1 (3) connection air inlet pressure sensor (2), outfan connection terminal pressure is passed
Sensor (4), terminal pressure sensor (4) connection flow gauge terminal, lowpressure stream gauge adopts inserted mode connection flow gauge terminal
Interface (5), the delivery outlet dedicated pipe of lowpressure stream gauge is connected to proving flowmeter import (6), proving flowmeter outlet and demarcation
Flow transducer (7) connects；In described high pressure float flow meter calibrating verification pipeline, float flow meter pet valve (8) input
End connection air inlet pressure sensor (2), outfan connection flowrator interface (9), because high pressure float flow meter is carried
Decompressor, its operating pressure is that between 1.0-15MPa, high pressure float flow meter is connect using inserted mode connection flowrator
Mouth (9), the delivery outlet dedicated pipe of high pressure float flow meter is connected to proving flowmeter import (6), proving flowmeter outlet and mark
Constant current quantity sensor (7) connects；
High and low voltage exchange valve (10) input connection air inlet pressure sensor (2), outfan connects the low pressure pressure of below 0-4MPa
The mesohigh pressure gauge calibrating verification pipeline of power table calibrating verification pipeline and 4-30MPa；The low pressure pressure of described below 0-4MPa
In power table calibrating verification pipeline, the input of decompressor 2 (11) connection high and low voltage exchange valve (10), outfan connection low pressure
Sensor (12) is shown, low pressure shows sensor (12) connection low-pressure meter pet valve (13), and low-pressure meter pet valve (13) is even
Low-pressure meter nominal pressure sensor (14) is connect, low-pressure meter nominal pressure sensor (14) outfan connects respectively low pressure meter connector
And low-pressure meter vent valve (16) (15)；
In the mesohigh pressure gauge calibrating verification pipeline of described 4-30MPa, the input of decompressor 3 (17) connects high and low crush-cutting
Change valve (10), outfan connection pneumatic type gas booster (18), pneumatic type gas booster (18) connection high pressure energy accumulating buffering
Device (19), high pressure energy accumulating buffer (19) connection boost pressure shows sensor (20), and boost pressure shows sensor (20) even
High pressure gauge pet valve (21) is connect, high pressure gauge pet valve (21) connection high pressure gauge nominal pressure sensor (22), high pressure gauge demarcates pressure
Force transducer (22) outfan connects respectively high pressure meter connector (23) and high pressure gauge vent valve (24).
3. medical oxygen class measurement instrument metrological standard unit as claimed in claim 1, it is characterised in that verification standard set-up
Interior setting, pressure precision includes 0.4 grade, 1.6 grades, 2.5 grades, four accuracy classes such as 4 grades；Flow accuracy include 1.6 grades, 2.5
Level, three accuracy classes such as 4 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190664.4A CN106595953B (en) | 2016-12-21 | 2016-12-21 | Medical oxygen class measurement instrument metrological standard unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611190664.4A CN106595953B (en) | 2016-12-21 | 2016-12-21 | Medical oxygen class measurement instrument metrological standard unit |
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|---|---|
| CN106595953A true CN106595953A (en) | 2017-04-26 |
| CN106595953B CN106595953B (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611190664.4A Active CN106595953B (en) | 2016-12-21 | 2016-12-21 | Medical oxygen class measurement instrument metrological standard unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328571A (en) * | 2017-08-24 | 2017-11-07 | 淮安市计量测试所 | A kind of oxygen inhalation apparatus detector and detection method |
| CN108709687A (en) * | 2018-06-06 | 2018-10-26 | 青岛海纳光电环保有限公司 | A kind of petroleum vapor recovery detector calibrating installation and calibration method |
| CN110319973A (en) * | 2019-08-01 | 2019-10-11 | 红旗仪表（长兴）有限公司 | A kind of integration air pressure calibration equipment and method |
| CN110987111A (en) * | 2019-12-05 | 2020-04-10 | 山东省医疗器械产品质量检验中心 | System for testing flow control characteristics of infusion apparatus under dynamic and static conditions |
| CN111121869A (en) * | 2019-12-25 | 2020-05-08 | 南京信息职业技术学院 | Oxygen inhaler calibration detection device |
| CN111735520A (en) * | 2020-07-29 | 2020-10-02 | 中国航空工业集团公司沈阳空气动力研究所 | A gas flow standard device with high and low pressure dual calibration sections and its calibration method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328571A (en) * | 2017-08-24 | 2017-11-07 | 淮安市计量测试所 | A kind of oxygen inhalation apparatus detector and detection method |
| CN108709687A (en) * | 2018-06-06 | 2018-10-26 | 青岛海纳光电环保有限公司 | A kind of petroleum vapor recovery detector calibrating installation and calibration method |
| CN110319973A (en) * | 2019-08-01 | 2019-10-11 | 红旗仪表（长兴）有限公司 | A kind of integration air pressure calibration equipment and method |
| CN110987111A (en) * | 2019-12-05 | 2020-04-10 | 山东省医疗器械产品质量检验中心 | System for testing flow control characteristics of infusion apparatus under dynamic and static conditions |
| CN110987111B (en) * | 2019-12-05 | 2020-12-22 | 山东省医疗器械产品质量检验中心 | System for testing flow control characteristics of infusion apparatus under dynamic and static conditions |
| CN111121869A (en) * | 2019-12-25 | 2020-05-08 | 南京信息职业技术学院 | Oxygen inhaler calibration detection device |
| CN111735520A (en) * | 2020-07-29 | 2020-10-02 | 中国航空工业集团公司沈阳空气动力研究所 | A gas flow standard device with high and low pressure dual calibration sections and its calibration method |
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|---|---|
| CN106595953B (en) | 2019-01-29 |
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