CN106501445B - A kind of liftable oxygen index (OI) tester - Google Patents
A kind of liftable oxygen index (OI) tester Download PDFInfo
- Publication number
- CN106501445B CN106501445B CN201611211032.1A CN201611211032A CN106501445B CN 106501445 B CN106501445 B CN 106501445B CN 201611211032 A CN201611211032 A CN 201611211032A CN 106501445 B CN106501445 B CN 106501445B
- Authority
- CN
- China
- Prior art keywords
- gas
- tank
- oxygen index
- liftable
- snorkel
- Prior art date
- 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.)
- Active
Links
- 239000001301 oxygen Substances 0.000 title claims abstract description 60
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 60
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000007789 gas Substances 0.000 claims abstract description 57
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 4
- 239000002861 polymer material Substances 0.000 abstract description 4
- 241001269238 Data Species 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention provides a kind of liftable oxygen index (OI) testers, the box house installation PLC controller and regulating device, the PLC controller attended operation panel, the operation panel is mounted on box outer surface, the liftable oxygen index (OI) tester further includes oxygen tank, nitrogen gas tank, fuel cartridge, the snorkel of the oxygen tank and nitrogen gas tank synthesizes a mixing line by venturi mixer, the mixing line connects gas nozzle, the gas nozzle is mounted on the bottom of gas disturbing flow device, venthole is equipped at the top of the gas disturbing flow device, gas leakage-chamber is installed above the gas disturbing flow device, cloche is installed outside the gas leakage-chamber.Liftable oxygen index (OI) tester of the present invention realizes mechanization, intelligence comprehensively, can control and check various performance datas and experiment parameter by operation panel, can satisfy the testing requirement of various polymer material combustibilities.
Description
Technical field
The invention belongs to combustibility testing fields, more particularly, to a kind of liftable oxygen index (OI) tester.
Background technique
Liftable oxygen index (OI) tester is the combustibility for evaluating polymer under regulation experimental condition, i.e. measurement is poly-
Close the concentration of volume percent that object just maintains the most hypoxemia of burning.When substance combustion, need to consume a large amount of oxygen, it is different
Combustible, the amount of oxygen for needing to consume when burning is different, passes through the measurement to minimum oxygen amount is consumed during substance combustion, meter
The oxygen index value for calculating substance, to evaluate the combustibility of substance.The instrument is suitable for plastics, rubber, fiber, foamed plastics
And the combustibility test of various solids, it is accuracy, reproducible, therefore generally used by countries in the world.
But with all kinds of polymer material production technologies rapid developments in recent years, it is used for polymer material flammability
The liftable oxygen index (OI) tester of energy is but not kept pace with the demand in market, at present domestic existing liftable oxygen index (OI) tester ratio
It is deficienter, and mostly have the shortcomings that test data inaccuracy, service life are short.
Summary of the invention
In view of this, the present invention is directed to propose a kind of liftable oxygen index (OI) tester, to solve current oxygen index measuring instrument
The problems such as not enough facilitate when measuring not accurate enough, measurement.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of liftable oxygen index (OI) tester, including cabinet, the box house installation PLC controller and regulating device,
The PLC controller connects regulating device, and the PLC controller attended operation panel, the operation panel installation is outside the enclosure
Surface, installs display screen and operation button on the operation panel, the oxygen index (OI) tester further include oxygen tank, nitrogen gas tank,
Snorkel is all installed in the gas outlet of oxygen tank and nitrogen gas tank described in fuel cartridge, and the snorkel of the oxygen tank and nitrogen gas tank passes through text
Mixer synthesizes a mixing line in mound, and the mixing line connects gas nozzle, and the gas nozzle is mounted on gas and disturbs
The bottom of device is flowed, venthole is equipped at the top of the gas disturbing flow device, installation gas leakage above the gas disturbing flow device
Room, the gas disturbing flow device are connected through a screw thread gas leakage-chamber, the fixed dress of installation measurement object above the gas leakage-chamber
It sets, cloche is installed outside the gas leakage-chamber, the fuel cartridge connects ignition device, the regulating device by snorkel
Including the solenoid valve installed on the solenoid valve and nitrogen gas tank snorkel installed on oxygen tank snorkel.
Further, the regulating device further includes the flow control valve installed on oxygen tank snorkel and nitrogen gas tank ventilation
Gas flowmeter, the gas stream are also installed on the snorkel of the flow control valve installed on pipe, the oxygen tank and nitrogen gas tank
Meter connects PLC controller.
Further, one-way vent valve and pressure test device, the pressure test device are installed in the mixing line
Connect PLC controller.
Further, the cloche is divided into two sections, and intermediate installing and connecting apparatus, the attachment device is hollow circuit cylinder
Body, the cylindrical body above and below the attachment device, there are the gap of same size with cloche, institutes between inner circle and outer circle
It states between the inner circle and outer circle of attachment device middle section as entity.
Further, the operation panel is mounted on the inclined-plane of the side of cabinet, the folder on the inclined-plane and horizontal direction
Angle is 60 °.
Further, the bottom of box installs hoistable platform.
Further, the hoistable platform installs hydraulic top, and the hydraulic top connects controller, and the controller is also connected with
Remote control device, the hoistable platform controls the contraction of hydraulic top by remote control device and controller, and then controls hoistable platform
Lifting.
Further, the bottom of box installs vertical laser range unit, and the vertical laser range unit connects PLC
Controller, the cabinet measure the height of the bottom of box and ground by vertical laser range unit.
Further, the ignition device penetration type is mounted in sphere rotation axis, the embedded peace of sphere rotation axis
On cloche, told ignition device connects fuel cartridge by snorkel.
Further, igniting needle, the igniting needle connection electricity sparking packet are installed in the front end of the ignition device, and the electricity is beaten
Fire packet is mounted on box house, the electricity sparking packet connection PLC controller.
Compared with the existing technology, liftable oxygen index (OI) tester of the present invention has the advantage that
(1) liftable oxygen index (OI) tester of the present invention realizes mechanization, intelligence comprehensively, can by operation panel
To control and check various performance datas and experiment parameter, the testing requirement of various polymer material combustibilities can satisfy.
It (2), can be more preferable by the cloche of merogenesis when liftable oxygen index (OI) tester combustion testing of the present invention
Carry out operate；Hoistable platform below tester can carry out height adjustment, and experimenter is made preferably to operate and observe in fact
Test phenomenon.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is liftable oxygen index (OI) tester external structure schematic diagram described in the embodiment of the present invention；
Fig. 2 is liftable oxygen index (OI) tester overall structure diagram described in the embodiment of the present invention.
Description of symbols:
1- operation panel；2- cloche；21- attachment device；22- top cover；301- oxygen tank；302- nitrogen gas tank；303- electricity
Magnet valve；304- gas flowmeter；305- venturi mixer；306- one-way vent valve；307- pressure test device 308- mixing
Pipeline；309- flow control valve；4- measures the fixed device of object；5- gas leakage-chamber；6- gas nozzle；7- gas flow-disturbing room；8-
Hoistable platform；81- controller；82- hydraulic top；83- remote control device；9- fuel cartridge；92- ignition device；93- igniting needle.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Fig.1 and Fig.2, a kind of liftable oxygen index (OI) tester, including cabinet, the box house installation PLC control
Device and regulating device, the PLC controller connect regulating device, the PLC controller attended operation panel 1, the operating surface
Plate 1 is mounted on box outer surface, installs display screen on the operation panel 1 and operation button, the oxygen index (OI) tester also wrap
Include oxygen tank 301, nitrogen gas tank 302, oxygen tank 301 and nitrogen gas tank 302 described in fuel cartridge 9 gas outlet snorkel is all installed, institute
The snorkel for stating oxygen tank 301 and nitrogen gas tank 302 synthesizes a mixing line 308, the mixing by venturi mixer 305
Pipeline 308 connects gas nozzle 6, and the gas nozzle 6 is mounted on the bottom of gas disturbing flow device 7, the gas disturbing flow device 7
Top is equipped with venthole, installs gas leakage-chamber 5 above the gas disturbing flow device 7, the gas disturbing flow device 7 passes through screw thread
Gas leakage-chamber 5 is connected, installation measurement object fixes device 4 above the gas leakage-chamber 5, pacifies outside the gas leakage-chamber 5
Glaze cover 2, the fuel cartridge 9 connect ignition device 92 by snorkel, and the regulating device includes 301 snorkel of oxygen tank
The solenoid valve 303 installed on 302 snorkel of solenoid valve 303 and nitrogen gas tank of upper installation.
As shown in Fig. 2, regulating device further includes the flow control valve 309 and nitrogen gas tank installed on 301 snorkel of oxygen tank
Gas stream is also installed on the snorkel of the flow control valve 309 installed on 302 snorkels, the oxygen tank 301 and nitrogen gas tank 302
Meter 304, the gas flowmeter 304 connect PLC controller.
Experimenter can control the closure and flow control valve 309 of solenoid valve 303 by operation panel 1, and then control
The ratio of oxygen and nitrogen, side go out to measure the limiting oxygen index of object.The reading of the on off operating mode, gas flowmeter 304 of solenoid valve 303
It counts, the state of flow control valve 309 is all shown on a display screen.One-way vent valve 306 and pressure are installed in mixing line 308
Force test device 307, one-way vent valve 306 make mixed gas that can only flow to a direction, and gas backflow is avoided to influence experiment number
According to pressure test device 307 connects PLC controller, can show the number pressure inside mixing line 308 on a display screen
According to.If the pressure inside mixing line 308 is excessive, experimenter can be by adjusting the logical of oxygen tank 301 and nitrogen gas tank 302
The flow control valve 309 of tracheae and then the pressure size for controlling mixing line 308.The mixing line 308 is copper pipeline, institute
It states mixing line 308 to be coiled in around box house, extends the length of mixing line 308, so that mixed gas passes through over long distances
Flowing, mixed gas temperature is more nearly room temperature, keeps experimental data more accurate.
It is two sections that cloche 2, which is divided to, intermediate installing and connecting apparatus 21, and the attachment device 21 is hollow cylinder, the company
Cylindrical body above and below connection device 21, there are the gap of same size with cloche 2, the connections between inner circle and outer circle
It is entity between the inner circle and outer circle of 21 middle section of device.It is two sections that cloche 2, which is divided to, and the installation site of attachment device 21 is in gas
The top of body leakage-chamber 5, more convenient when making fixation measuring object, the manufacture shape of attachment device 21 can make the upper of cloche 2
Lower two sections even closer.
92 penetration type of ignition device is mounted in sphere rotation axis, and the sphere rotation axis installation by adhering is in cloche 2
On.Igniting needle 93 is installed in the front end of ignition device 92, and the igniting needle 93 connects electricity sparking packet, and the electricity sparking packet is mounted on case
Internal portion, the electricity sparking packet connection PLC controller.Experimenter is operated by operation panel 1, is realized key sparking, is made reality
It tests more efficient and convenient.
Top cover 22 is installed at the top of cloche 2, is equipped with handle on the top cover 22.Oxygen tank 301, nitrogen gas tank 302, combustion
Gas tank 9 is all mounted on box house.
Operation panel 1 is mounted on the inclined-plane of the side of cabinet, and the angle of the inclined-plane and horizontal direction is 60 °.Operation
Panel 1, which is mounted on inclined-plane, keeps experimenter's operation more convenient, and visual angle is more natural.
The bottom of box installs hoistable platform 8.Hoistable platform 8 installs hydraulic top 2, and the hydraulic top 82 connects controller 81,
The controller 81 is also connected with remote control device 83, and the hoistable platform 8 controls hydraulic top by remote control device 83 and controller 81
82 contraction, and then control the lifting of hoistable platform 8.Height of the adjustable cabinet of lifting of hoistable platform 8 apart from ground, has
When carrying out combustion testing the height of flame or the visual angle of experimenter's viewing influences very much experimenter and judges, reality
The personnel of testing can pass through the more accurate judgment experiment result of height of adjusting cabinet.
The bottom of box installs vertical laser range unit, and the vertical laser range unit connects PLC controller, the case
Body measures the height of the bottom of box and ground by vertical laser range unit.Height of the cabinet apart from ground is shown on a display screen
It shows and, experimenter can height with the more intuitive understanding bottom of box apart from ground.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of liftable oxygen index (OI) tester, it is characterised in that: including cabinet, box house installation PLC controller and
Regulating device, the PLC controller connect regulating device, the PLC controller attended operation panel (1), the operation panel
(1) it is mounted on box outer surface, display screen and operation button are installed on the operation panel (1), the oxygen index (OI) tester is also
All pacify gas outlet including oxygen tank (301), nitrogen gas tank (302), fuel cartridge (9) described oxygen tank (301) and nitrogen gas tank (302)
The snorkel of dress snorkel, the oxygen tank (301) and nitrogen gas tank (302) synthesizes one by venturi mixer (305) and mixes
It closes pipeline (308), the mixing line (308) connects gas nozzle (6), and the gas nozzle (6) is mounted on gas flow-disturbing dress
The bottom of (7) is set, venthole is equipped at the top of the gas disturbing flow device (7), gas is installed above the gas disturbing flow device (7)
Leakage-chamber (5), the gas disturbing flow device (7) are connected through a screw thread gas leakage-chamber (5), above the gas leakage-chamber (5)
Installation measurement object is fixed device (4), installs cloche (2) outside the gas leakage-chamber (5), and the fuel cartridge (9) passes through logical
Tracheae connects ignition device (92), and the regulating device includes the solenoid valve (303) and nitrogen installed on oxygen tank (301) snorkel
The solenoid valve (303) installed on gas tank (302) snorkel.
2. liftable oxygen index (OI) tester according to claim 1, it is characterised in that: the regulating device further includes oxygen
The flow control valve installed on the flow control valve (309) and nitrogen gas tank (302) snorkel installed on tank (301) snorkel
(309), it is also installed gas flowmeter (304) on the snorkel of the oxygen tank (301) and nitrogen gas tank (302), the gas stream
Meter (304) connects PLC controller.
3. liftable oxygen index (OI) tester according to claim 1 or 2, it is characterised in that: on the mixing line (308)
One-way vent valve (306) and pressure test device (307) are installed, the pressure test device (307) connects PLC controller.
4. liftable oxygen index (OI) tester according to claim 1, it is characterised in that: the cloche (2) is divided into two sections,
Intermediate installing and connecting apparatus (21), the attachment device (21) is hollow cylinder, above and below the attachment device (21)
Cylindrical body, there are the gap of same size with cloche (2), attachment device (21) middle sections between inner circle and outer circle
Inner circle and outer circle between be entity.
5. liftable oxygen index (OI) tester according to claim 1, it is characterised in that: the operation panel (1) is mounted on
On the inclined-plane of the side of cabinet, the angle of the inclined-plane and horizontal direction is 60 °.
6. liftable oxygen index (OI) tester according to claim 1, it is characterised in that: the bottom of box installation lifting is flat
Platform (8).
7. liftable oxygen index (OI) tester according to claim 6, it is characterised in that: the hoistable platform (8) installs liquid
Bear down on one (2), the hydraulic top (82) connects controller (81), and the controller (81) is also connected with remote control device (83), the liter
Platform (8) are dropped by the contraction of remote control device (83) and controller (81) control hydraulic top (82), and then control hoistable platform (8)
Lifting.
8. liftable oxygen index (OI) tester according to claim 1, it is characterised in that: the bottom of box installation is vertical to swash
Optical range finding apparatus, the vertical laser range unit connect PLC controller, and the cabinet is measured by vertical laser range unit
The height of the bottom of box and ground.
9. liftable oxygen index (OI) tester according to claim 1, it is characterised in that: ignition device (92) penetration type
It is mounted in sphere rotation axis, on cloche (2), the ignition device (92) passes through the sphere rotation axis installation by adhering
Snorkel connects fuel cartridge (9).
10. liftable oxygen index (OI) tester according to claim 9, it is characterised in that: before the ignition device (92)
End installation igniting needle (93), igniting needle (93) the connection electricity sparking packet, the electricity sparking packet are mounted on box house, the electricity
Sparking packet connection PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211032.1A CN106501445B (en) | 2016-12-24 | 2016-12-24 | A kind of liftable oxygen index (OI) tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211032.1A CN106501445B (en) | 2016-12-24 | 2016-12-24 | A kind of liftable oxygen index (OI) tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106501445A CN106501445A (en) | 2017-03-15 |
| CN106501445B true CN106501445B (en) | 2019-03-05 |
Family
ID=58333971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611211032.1A Active CN106501445B (en) | 2016-12-24 | 2016-12-24 | A kind of liftable oxygen index (OI) tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106501445B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383900B (en) * | 2022-01-10 | 2024-10-15 | 合肥康柏斯工业设备有限公司 | Gas premix combustion atmosphere analyzer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0060681A1 (en) * | 1981-03-17 | 1982-09-22 | Honeywell Inc. | A combustible gas analyzer |
| JP2011257253A (en) * | 2010-06-09 | 2011-12-22 | Toyo Seiki Seisaku-Sho Ltd | Oxygen index measuring instrument |
| CN102353748A (en) * | 2011-09-22 | 2012-02-15 | 东南大学 | Oxygen index tester |
| CN102507851A (en) * | 2011-11-28 | 2012-06-20 | 广东成德电路股份有限公司 | Printed circuit board oxygen index measuring instrument |
| CN103149321A (en) * | 2013-02-25 | 2013-06-12 | 上海长园电子材料有限公司 | Oxygen index test system |
| CN103529163A (en) * | 2013-10-29 | 2014-01-22 | 山东省产品质量监督检验研究院 | Portable oxygen index testing device and application method |
| CN206362756U (en) * | 2016-12-24 | 2017-07-28 | 天津达元吉科技有限公司 | A kind of Intelligent oxygen index tester |
-
2016
- 2016-12-24 CN CN201611211032.1A patent/CN106501445B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0060681A1 (en) * | 1981-03-17 | 1982-09-22 | Honeywell Inc. | A combustible gas analyzer |
| JP2011257253A (en) * | 2010-06-09 | 2011-12-22 | Toyo Seiki Seisaku-Sho Ltd | Oxygen index measuring instrument |
| CN102353748A (en) * | 2011-09-22 | 2012-02-15 | 东南大学 | Oxygen index tester |
| CN102507851A (en) * | 2011-11-28 | 2012-06-20 | 广东成德电路股份有限公司 | Printed circuit board oxygen index measuring instrument |
| CN103149321A (en) * | 2013-02-25 | 2013-06-12 | 上海长园电子材料有限公司 | Oxygen index test system |
| CN103529163A (en) * | 2013-10-29 | 2014-01-22 | 山东省产品质量监督检验研究院 | Portable oxygen index testing device and application method |
| CN206362756U (en) * | 2016-12-24 | 2017-07-28 | 天津达元吉科技有限公司 | A kind of Intelligent oxygen index tester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106501445A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2709430T3 (en) | Analysis of fuel combustion characteristics | |
| CN106501445B (en) | A kind of liftable oxygen index (OI) tester | |
| CA2438448C (en) | Leak detector | |
| CN206362756U (en) | A kind of Intelligent oxygen index tester | |
| CN208420321U (en) | Safety valve testing equipment | |
| CN100595527C (en) | Household fuel gas gage on-site verification method and apparatus | |
| CN206563733U (en) | A kind of oxygen index (OI) tester | |
| CN201062975Y (en) | Nozzle gas flow tester for heavy gas turbine | |
| CN106645553A (en) | Oxygen index test apparatus | |
| CN208443808U (en) | A kind of automatic adjustment oxygen index test device | |
| CN203587531U (en) | Paramagnetic oxygen analyzer | |
| CN109781217A (en) | A kind of detection device for water meter | |
| CN213364765U (en) | Portable combustible gas explosion experimental device | |
| CN103063275B (en) | Device for testing comprehensive performance of ultrasonic water flow transducer and application method of device | |
| CN205909970U (en) | Pressure testing device | |
| CN208894773U (en) | A kind of novel high-pressure blow device | |
| CN210533498U (en) | Liquid level height measuring device, oil testing metering device and oil testing metering system | |
| CN203551537U (en) | Critical oxygen index tester with gas mixing drum | |
| CN203241395U (en) | Nonmetal polymer material oxygen index test device | |
| CN208922598U (en) | A kind of comprehensive experiment table suitable for Combustion | |
| CN207438587U (en) | A kind of laminar diffusion flame gas combustion testing system | |
| CN202177434U (en) | Natural-gas online calibrating device | |
| CN214539161U (en) | Energy-saving copper sheet corrosion tester with temperature automatic compensation function | |
| CN218685965U (en) | Gaseous fire extinguishing agent fire extinguishing performance testing arrangement | |
| CN212492445U (en) | Fuel gas heat value balancing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A rising and falling oxygen index tester Effective date of registration: 20231024 Granted publication date: 20190305 Pledgee: China Construction Bank Corporation Tianjin Nanzhi Branch Pledgor: ZINFO CONSULTING SERVICES, LNC. LTD. Registration number: Y2023980062364 |