CN109283297A - Hydrogen on-line analysis separate calibrations sampling system - Google Patents
Hydrogen on-line analysis separate calibrations sampling system Download PDFInfo
- Publication number
- CN109283297A CN109283297A CN201811308688.4A CN201811308688A CN109283297A CN 109283297 A CN109283297 A CN 109283297A CN 201811308688 A CN201811308688 A CN 201811308688A CN 109283297 A CN109283297 A CN 109283297A
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- interface
- sensing unit
- valve
- threeway
- purity
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- 238000005070 sampling Methods 0.000 title claims abstract description 40
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000001257 hydrogen Substances 0.000 title claims abstract description 31
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 86
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000001301 oxygen Substances 0.000 claims abstract description 69
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 69
- 238000005259 measurement Methods 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/005—H2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
- G01N35/1011—Control of the position or alignment of the transfer device
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Hydrogen on-line analysis separate calibrations sampling system comprising sample gas air inlet pipeline, calibration gas air inlet pipeline, purity determination calibration switching valve, oxygen measurement calibration switching valve, pressure reducer, humidity sensing unit, purity sensing unit, oxygen sensor unit, humidity sensing unit protection valve, purity sensing unit protection valve, oxygen sensor cell protection valve, emptying pipeline, the first threeway, the second threeway, third threeway, the first regulating flow quantity meter, the second regulating flow quantity meter, automatic drained oil filter group and sampling line；The present invention is that collection gas sampling, calibration, analysis (or detection) and sensing unit are protected in integrated multi-functional sampling system.The present invention can make sample gas meet the requirement of each sensing unit in-site measurement well, ensure that the work that each sensing unit can be steady in a long-term.
Description
Technical field
The invention belongs to hydrogen online measuring technique fields, and in particular to the hydrogen of a kind of pair of generator hydrogen quality is online
Analyze separate calibrations sampling system.
Background technique
State time generator group mostly uses greatly hydrogen-cooled technology at present, " GB26164.1-2010 electric industry safety code first
Point heating power and machinery ", the specifications normative document such as " GB 4962-2008 hydrogen uses act of technique for security " is to generator hydrogen
The on-line checking of hydrogen purity, humidity and oxygen content is provided in system, and these contents are Compulsory Feature.
For enable generating set it is safe and reliable, it is economical, steadily run, hydrogen quality in raising machine (such as purity,
Humidity and oxygen content) measurement accuracy be very necessary.Therefore, scene is real online to hydrogen purity, humidity and oxygen content
When monitoring sensing unit maintenance more stringent requirements are proposed, due to sensor self-characteristic determine drift and problem of aging without
Method avoids, and periodically irregular calibration and comparison are necessary.
Summary of the invention
In order to solve shortcoming in the prior art, the hydrogen for providing a kind of generator hydrogen quality divides the present invention online
Separate calibrations sampling system is analysed, which mainly completes gas sampling, hydrogen humidity is pressing measurement, hydrogen purity and oxygen content normal
The gas circuit protection of pressure measurement, the separate calibrations of purity and oxygen content sensing unit and sensing unit.
In order to solve the above technical problems, the present invention adopts the following technical scheme: hydrogen on-line analysis separate calibrations sampling system
System comprising sample gas air inlet pipeline, calibration gas air inlet pipeline, purity determination calibration switching valve, oxygen measurement calibration are cut
Valve, pressure reducer, humidity sensing unit, purity sensing unit, oxygen sensor unit, humidity sensing unit protection valve, purity is changed to pass
Feel cell protection valve, oxygen sensor cell protection valve, emptying pipeline, the first threeway, the second threeway, third threeway, first adjustable
Throttle meter, the second regulating flow quantity meter, automatic drained oil filter group and sampling line；
Humidity sensing unit protects valve, purity sensing unit protection valve, the construction of oxygen sensor cell protection valve identical, all has
A interface, B interface, C interface and D interface, wherein A interface is air inlet, and the channel internal A-B, C-D can be cut by rotating valve shaft
Change the channel A-D, B-C into；
The inlet end of sample gas air inlet pipeline is connect with generator hydrogen main pipeline, the gas outlet of sample gas air inlet pipeline with
Automatic drained oil filter group air inlet is connected, and automatic drained oil filter group gas outlet is connected to first interface of the first threeway,
Second interface of the first threeway and the air inlet of sampling line connect, the third interface and humidity sensing unit of the first threeway
The A interface of valve is protected to be connected, humidity sensing unit is serially connected between the B interface and C interface of humidity sensing unit protection valve, wet
The D interface of degree sensing unit protection valve is connected with the air inlet of pressure reducer；First of the gas outlet of pressure reducer and the second threeway
Interface is connected, and gas is divided into two-way by the second threeway, the second interface and third interface of the second threeway are surveyed with purity respectively
First interface of amount calibration switching valve is connected with first interface of oxygen measurement calibration switching valve；
The air inlet of calibration gas air inlet pipeline is used to connect external Standard Gases gas source, the gas outlet of calibration gas air inlet pipeline
It is connected with first interface of third threeway；Gas is divided into two-way, the second interface of third threeway and by third threeway
Three interfaces calibrate second interface phase of switching valve with second interface of purity determination calibration switching valve and oxygen measurement respectively
Even；
The third interface of purity determination calibration switching valve is connected with the air inlet of the first regulating flow quantity meter, the first adjustable throttling
The gas outlet of meter is connected with the A interface of purity sensing unit protection valve 5B, and it is single that purity sensing unit is series at purity sensing
Between the B interface and C interface of member protection valve, the D interface of purity sensing unit protection valve is connected with emptying pipeline；
The third interface of oxygen measurement calibration switching valve is connected with the air inlet of the second regulating flow quantity meter, the second adjustable throttling
The gas outlet of meter is connected with the A mouth of oxygen sensor cell protection valve, and oxygen sensor unit is series at oxygen sensor unit guarantor
It protects between the B interface and C interface of valve, the D interface of oxygen sensor cell protection valve 5C is connected by the 4th threeway with emptying pipeline.
Sampling valve is provided on sampling line, the gas outlet of sampling line is sample tap.
It further include the mounting rack for part each in fixed installation system, mounting rack is provided with the peace for fixing and mounting bracket
Fill hole.
By adopting the above technical scheme, humidity sensing unit protection valve, purity sensing unit protection valve, oxygen pass in the present invention
Three sensing units are measuring state when the inside of sense cell protection valve is in A-B, C-D connected state, and inside is in A-D, B-C
Three sensing units are in by guard mode when connected state, and sensing unit is isolated with gas circuit, can also remove sensing unit at this time
It repairs.
The present invention is that collection gas sampling, calibration, analysis (or detection) and sensing unit are protected in integrated multi-functional sampling
System.
When normal work, the gas that samples from generator hydrogen main pipeline is followed by sample gas air inlet pipeline, automatic
Draining oil filter group, humidity sensing unit protect the D of A interface, humidity sensing unit, humidity sensing unit protection the valve 5A of valve to connect
Mouth, pressure reducer, are divided into two-way by the second threeway, sequentially enter purity determination calibration switching valve, the first regulating flow quantity all the way
The A interface of meter, purity sensing unit protection valve, enters finally into and carries out hydrogen purity measurement in purity sensing unit；Another way
Sequentially enter oxygen measurement calibration switching valve, the second regulating flow quantity meter, oxygen sensor cell protection valve A interface, it is most laggard
Enter into oxygen sensor unit and carries out the measurement of oxygen content in hydrogen；Respectively from the outlet of purity sensing unit protection valve after measurement
The gas outlet D of mouth D and oxygen sensor cell protection valve imports emptying pipeline.
Purity determination calibrates switching valve and oxygen measurement calibration switching valve is used to the sample gas and calibration gas of switch sampling
Body.When being calibrated to a certain sensing unit in purity sensing unit and oxygen sensor unit, rotates corresponding measurement purity and survey
Amount calibration switching valve or oxygen measurement calibrate switching valve to align mode, connect calibration gas air inlet pipeline, and calibrating gas is from school
The air inlet of quasi- gas inlet pipeline enters, and calibrates switching valve or oxygen measurement calibration switching valve, the followed by purity determination
After one regulating flow quantity meter or the second regulating flow quantity meter, purity sensing unit protection valve or oxygen sensor cell protection valve respectively
Sensing unit is calibrated inside into purity sensing unit and oxygen sensor unit, and humidity sensing unit is still within pair
The monitoring state of sample gas.
When needed, the external standard of sample tap (humidity, purity, oxygen) instrument, and sampling valve is opened, it equally can be to sampling
Gas is detected, so as to the testing number with humidity sensing unit, purity sensing unit and oxygen sensor unit in the present invention
According to being compared, the reliability and accuracy of detection data are judged.
In conclusion the invention has the following advantages:
1, the present invention can make sample gas meet the requirement of each sensing unit in-site measurement well, ensure that each sensing unit can be grown
Phase stable work.
2, the present invention automatic drained oil filter group is provided in gas circuit, can automatic pollution discharge, prevent sensing unit oily pollution,
Ensure the service life of each sensing unit in hydrogen quality system, reduce maintenance, reduces maintenance cost.
3, the present invention provides calibration gas air inlet pipeline, uses convenient for the independent calibration of purity and oxygen content sensing unit；
4, the carbon dioxide gas when entering the gas for having injury to sensing unit in system such as in hydrogen replacement process, this hair
It is bright sensing unit and isolation of system to be opened, protect sensing unit not to be damaged；Sensing unit can also prevent when removing maintenance
Gas leakage.
5, the present invention provides sampling valve and sample tap, and access master meter is facilitated to be compared with the data of on-line monitoring,
Judge the reliability and accuracy of detection data.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, hydrogen on-line analysis separate calibrations sampling system of the invention comprising sample gas air inlet pipeline
1, calibration gas air inlet pipeline 2, purity determination calibration switching valve 3A, oxygen measurement calibration switching valve 3B, pressure reducer 4, humidity pass
Feel unit 6, purity sensing unit 7, oxygen sensor unit 8, humidity sensing unit protection valve 5A, purity sensing unit and protects valve
5B, oxygen sensor cell protection valve 5C, emptying pipeline 9, the first threeway 12, the second threeway 17, third threeway 16, first are adjustable
Flowmeter 13A, the second regulating flow quantity meter 13B, automatic drained oil filter group 14 and sampling line 18；
Humidity sensing unit protects valve 5A, purity sensing unit protection valve 5B, the construction of oxygen sensor cell protection valve 5C identical,
A interface, B interface, C interface and D interface are all had, wherein A interface is air inlet, and the channel internal A-B, C-D can pass through rotation
Valve shaft switches to the channel A-D, B-C；
The inlet end of sample gas air inlet pipeline 1 is connect with generator hydrogen main pipeline, the gas outlet of sample gas air inlet pipeline 1
It is connected with 14 air inlet of automatic drained oil filter group, 14 gas outlet of automatic drained oil filter group is connected to the first of the first threeway 12
Second interface of a interface, the first threeway 12 is connect with the air inlet of sampling line 18, the third interface of the first threeway 12
It is connected with the A interface of humidity sensing unit protection valve 5A, humidity sensing unit 6 is serially connected with humidity sensing unit protection valve 5A's
Between B interface and C interface, the D interface of humidity sensing unit protection valve 5A is connected with the air inlet of pressure reducer 4；Pressure reducer 4 goes out
Port is connected with first interface of the second threeway 17, and gas is divided into two-way by the second threeway 17, and the of the second threeway 17
Two interfaces and third interface calibrate switching valve 3B with first interface of purity determination calibration switching valve 3A and oxygen measurement respectively
First interface be connected；
The air inlet of calibration gas air inlet pipeline 2 is used to connect external Standard Gases gas source, the outlet of calibration gas air inlet pipeline 2
Mouth is connected with first interface of third threeway 16；Gas is divided into two-way by third threeway 16, the second of third threeway 16
Interface and third interface calibrate switching valve 3B's with second interface of purity determination calibration switching valve 3A and oxygen measurement respectively
Second interface is connected；
The third interface of purity determination calibration switching valve 3A is connected with the air inlet of the first regulating flow quantity meter 13A, and first can
The gas outlet for adjusting flowmeter 13A is connected with the A interface of purity sensing unit protection valve 5B, and purity sensing unit 7 is series at
Purity sensing unit is protected between the B interface and C interface of valve 5B, and purity sensing unit protects the D interface and emptying pipeline 9 of valve 5B
It is connected；
The third interface of oxygen measurement calibration switching valve 3B is connected with the air inlet of the second regulating flow quantity meter 13B, and second can
The gas outlet for adjusting flowmeter 13B is connected with the A mouth of oxygen sensor cell protection valve 5C, and oxygen sensor unit 8 is series at oxygen
Gas sensing unit is protected between the B interface and C interface of valve 5C, and the D interface of oxygen sensor cell protection valve 5C passes through the 4th threeway
19 are connected with emptying pipeline 9.
Sampling valve 11 is provided on sampling line 18, the gas outlet of sampling line 18 is sample tap 10.
The invention also includes the mounting rack 15 for each part in fixed installation system, mounting rack 15 is provided with for fixing
The mounting hole of mounting rack 15.
Humidity sensing unit protection valve 5A, purity sensing unit protect valve 5B, oxygen sensor cell protection valve in the present invention
Three sensing units are measuring state when the inside of 5C is in A-B, C-D connected state, when inside is in A-D, B-C connected state
Three sensing units are in by guard mode, and sensing unit is isolated with gas circuit, can also be removed sensing unit at this time and be repaired.
When normal work, the gas that samples from generator hydrogen main pipeline is followed by sample gas air inlet pipeline 1, automatic
Draining oil filter group 14, the A interface of humidity sensing unit protection valve 5A, humidity sensing unit 6, humidity sensing unit protection valve 5A
D interface, pressure reducer 4, divided by the second threeway 17 for two-way, sequentially enter purity determination calibration switching valve 3A, first all the way
The A interface of regulating flow quantity meter 13A, purity sensing unit protection valve 5B, enter finally into and carry out hydrogen in purity sensing unit 7
Purity determination；Another way sequentially enters oxygen measurement calibration switching valve 3B, the second regulating flow quantity meter 13B, oxygen sensor unit
The A interface for protecting valve 5C enters finally into the measurement that oxygen content in hydrogen is carried out in oxygen sensor unit 8；After measurement respectively from
Purity sensing unit protects the gas outlet D of the gas outlet D and oxygen sensor cell protection valve 5C of valve 5B to import emptying pipeline 9.
Purity determination calibrates switching valve 3A and oxygen measurement calibration switching valve 3B is used to sample gas and the school of switch sampling
Quasi- gas.When calibrating to a certain sensing unit in purity sensing unit 7 and oxygen sensor unit 8, corresponding measurement is rotated
Purity determination calibrates switching valve 3A or oxygen measurement calibrates switching valve 3B to align mode, connects calibration gas air inlet pipeline 2, mark
Quasi- gas enters from the air inlet of calibration gas air inlet pipeline 2, calibrates switching valve 3A or oxygen measurement followed by purity determination
Calibrate switching valve 3B, the first regulating flow quantity meter 13A or the second regulating flow quantity meter 13B, purity sensing unit protection valve 5B or
It respectively enters after oxygen sensor cell protection valve 5C and sensing unit is carried out inside purity sensing unit 7 and oxygen sensor unit 8
Calibration, and humidity sensing unit 6 is still within the monitoring state to sample gas.
Sampling valve 11 is provided on sampling line 18, the gas outlet of sampling line 18 is sample tap 10.
When needed, the external standard of sample tap 10 (humidity, purity, oxygen) instrument, and sampling valve 11 is opened, it equally can be right
Sample gas is detected, so as to humidity sensing unit 6, purity sensing unit 7 and the oxygen sensor unit 8 in the present invention
Detection data is compared, and judges the reliability and accuracy of detection data.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention side
The protection scope of case.
Claims (3)
1. hydrogen on-line analysis separate calibrations sampling system, it is characterised in that: including sample gas air inlet pipeline, calibration gas into
Air pipe, purity determination calibration switching valve, oxygen measurement calibration switching valve, pressure reducer, humidity sensing unit, purity sensing are single
Member, oxygen sensor unit, humidity sensing unit protection valve, purity sensing unit protection valve, oxygen sensor cell protection valve, emptying
Pipeline, the first threeway, the second threeway, third threeway, the first regulating flow quantity meter, the second regulating flow quantity meter, automatic oil draining mistake
Filter group and sampling line；
Humidity sensing unit protects valve, purity sensing unit protection valve, the construction of oxygen sensor cell protection valve identical, all has
A interface, B interface, C interface and D interface, wherein A interface is air inlet, and the channel internal A-B, C-D can be cut by rotating valve shaft
Change the channel A-D, B-C into；
The inlet end of sample gas air inlet pipeline is connect with generator hydrogen main pipeline, the gas outlet of sample gas air inlet pipeline with
Automatic drained oil filter group air inlet is connected, and automatic drained oil filter group gas outlet is connected to first interface of the first threeway,
Second interface of the first threeway and the air inlet of sampling line connect, the third interface and humidity sensing unit of the first threeway
The A interface of valve is protected to be connected, humidity sensing unit is serially connected between the B interface and C interface of humidity sensing unit protection valve, wet
The D interface of degree sensing unit protection valve is connected with the air inlet of pressure reducer；First of the gas outlet of pressure reducer and the second threeway
Interface is connected, and gas is divided into two-way by the second threeway, the second interface and third interface of the second threeway are surveyed with purity respectively
First interface of amount calibration switching valve is connected with first interface of oxygen measurement calibration switching valve；
The air inlet of calibration gas air inlet pipeline is used to connect external Standard Gases gas source, the gas outlet of calibration gas air inlet pipeline
It is connected with first interface of third threeway；Gas is divided into two-way, the second interface of third threeway and by third threeway
Three interfaces calibrate second interface phase of switching valve with second interface of purity determination calibration switching valve and oxygen measurement respectively
Even；
The third interface of purity determination calibration switching valve is connected with the air inlet of the first regulating flow quantity meter, the first adjustable throttling
The gas outlet of meter is connected with the A interface of purity sensing unit protection valve 5B, and it is single that purity sensing unit is series at purity sensing
Between the B interface and C interface of member protection valve, the D interface of purity sensing unit protection valve is connected with emptying pipeline；
The third interface of oxygen measurement calibration switching valve is connected with the air inlet of the second regulating flow quantity meter, the second adjustable throttling
The gas outlet of meter is connected with the A mouth of oxygen sensor cell protection valve, and oxygen sensor unit is series at oxygen sensor unit guarantor
It protects between the B interface and C interface of valve, the D interface of oxygen sensor cell protection valve 5C is connected by the 4th threeway with emptying pipeline.
2. hydrogen on-line analysis separate calibrations sampling system according to claim 1, it is characterised in that: set on sampling line
It is equipped with sampling valve, the gas outlet of sampling line is sample tap.
3. hydrogen on-line analysis separate calibrations sampling system according to claim 1, it is characterised in that: further include for solid
Determine the mounting rack of each part in installation system, mounting rack is provided with the mounting hole for fixing and mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308688.4A CN109283297B (en) | 2018-11-05 | 2018-11-05 | Independent calibration sampling system for hydrogen online analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308688.4A CN109283297B (en) | 2018-11-05 | 2018-11-05 | Independent calibration sampling system for hydrogen online analysis |
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| Publication Number | Publication Date |
|---|---|
| CN109283297A true CN109283297A (en) | 2019-01-29 |
| CN109283297B CN109283297B (en) | 2024-04-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811308688.4A Active CN109283297B (en) | 2018-11-05 | 2018-11-05 | Independent calibration sampling system for hydrogen online analysis |
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| Country | Link |
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| CN (1) | CN109283297B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174444A (en) * | 2019-06-12 | 2019-08-27 | 贵州电网有限责任公司 | A kind of cooling water conductivity table mounting structure of deicing device |
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| CN106645587A (en) * | 2017-01-16 | 2017-05-10 | 清华大学 | Gas sensor evaluation and calibration system |
| CN206281835U (en) * | 2016-12-07 | 2017-06-27 | 河南省日立信股份有限公司 | The on-line analysis of generator hydrogen quality and sampling system |
| CN206281839U (en) * | 2016-12-14 | 2017-06-27 | 河南省日立信股份有限公司 | Hydrogen analytical sampling system in the online hydrogen purity of hydrogen generator station or oxygen |
| CN209167263U (en) * | 2018-11-05 | 2019-07-26 | 河南省日立信股份有限公司 | Hydrogen on-line analysis separate calibrations sampling system |
-
2018
- 2018-11-05 CN CN201811308688.4A patent/CN109283297B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000171358A (en) * | 1998-12-02 | 2000-06-23 | Shimadzu Corp | Gas analyzer |
| CN106405001A (en) * | 2016-06-17 | 2017-02-15 | 大唐国际发电股份有限公司张家口发电厂 | An on-line oxygen content monitoring device for hydrogen |
| CN205706657U (en) * | 2016-06-30 | 2016-11-23 | 安徽江淮汽车股份有限公司 | A kind of Pneumatic braking system aerating device |
| CN206074570U (en) * | 2016-10-12 | 2017-04-05 | 河南省日立信股份有限公司 | Oxygen analyzer in online hydrogen |
| CN206281835U (en) * | 2016-12-07 | 2017-06-27 | 河南省日立信股份有限公司 | The on-line analysis of generator hydrogen quality and sampling system |
| CN206281839U (en) * | 2016-12-14 | 2017-06-27 | 河南省日立信股份有限公司 | Hydrogen analytical sampling system in the online hydrogen purity of hydrogen generator station or oxygen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174444A (en) * | 2019-06-12 | 2019-08-27 | 贵州电网有限责任公司 | A kind of cooling water conductivity table mounting structure of deicing device |
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| Publication number | Publication date |
|---|---|
| CN109283297B (en) | 2024-04-26 |
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