CN209167263U - Hydrogen on-line analysis separate calibrations sampling system - Google Patents
Hydrogen on-line analysis separate calibrations sampling system Download PDFInfo
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- CN209167263U CN209167263U CN201821812578.7U CN201821812578U CN209167263U CN 209167263 U CN209167263 U CN 209167263U CN 201821812578 U CN201821812578 U CN 201821812578U CN 209167263 U CN209167263 U CN 209167263U
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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 utility model is that collection gas sampling, calibration, analysis (or detection) and sensing unit are protected in integrated multi-functional sampling system.The utility model 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 utility model belongs to hydrogen online measuring technique field, and in particular to the hydrogen of a kind of pair of generator hydrogen quality
On-line analysis 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.
Utility model content
In order to solve shortcoming in the prior art, the hydrogen for providing a kind of generator hydrogen quality exists the utility model
Line analysis separate calibrations sampling system, the system mainly complete gas sampling, hydrogen humidity in pressure measurement, hydrogen purity and oxygen-containing
Measure the gas circuit protection of the separate calibrations and sensing unit of normal pressure measurement, purity and oxygen content sensing unit.
In order to solve the above technical problems, the utility model adopts the following technical solution: hydrogen on-line analysis separate calibrations are adopted
Sample system comprising sample gas air inlet pipeline, calibration gas air inlet pipeline, purity determination calibrate switching valve, oxygen measurement school
Quasi- switching valve, pressure reducer, humidity sensing unit, purity sensing unit, oxygen sensor unit, humidity sensing unit protection valve, pure
Spend sensing unit protection valve, oxygen sensor cell protection valve, emptying pipeline, the first threeway, the second threeway, third threeway, first
Regulating flow quantity 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,
With 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 by rotating valve
Axis switches to the channel A-D, B-C；
The inlet end of sample gas air inlet pipeline is connect with generator hydrogen main pipeline, the outlet of sample gas air inlet pipeline
Mouthful it is connected with automatic drained oil filter group air inlet, automatic drained oil filter group gas outlet be connected to the first threeway first connects
Mouthful, second interface of the first threeway and the air inlet of sampling line connect, the third interface and humidity sensor of the first threeway
The A interface of cell protection valve is connected, humidity sensing unit be serially connected with humidity sensing unit protection valve B interface and C interface it
Between, the D interface of humidity sensing unit protection valve is connected with the air inlet of pressure reducer；The of the gas outlet of pressure reducer and the second threeway
One interface is connected, and gas is divided into two-way by the second threeway, the second interface and third interface of the second threeway respectively with it is pure
First interface of degree measurement 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, and calibration gas air inlet pipeline goes out
Port is connected with first interface of third threeway；Gas is divided into two-way, the second interface of third threeway by third threeway
It is connect respectively with second of second interface of purity determination calibration switching valve and oxygen measurement calibration switching valve with third interface
Mouth is connected；
The third interface of purity determination calibration switching valve is connected with the air inlet of the first regulating flow quantity meter, and first is adjustable
The gas outlet of throttling meter is connected with the A interface of purity sensing unit protection valve 5B, and purity sensing unit is series at purity biography
Between the B interface and C interface for feeling cell 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, and second is adjustable
The gas outlet of throttling meter is connected with the A mouth of oxygen sensor cell protection valve, and oxygen sensor unit is series at oxygen sensor list
Between the B interface and C interface of member protection valve, the D interface of oxygen sensor cell protection valve 5C passes through the 4th threeway and emptying pipeline
It is connected.
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 protect valve, oxygen in the utility model
Three sensing units are measuring state when the inside of gas sensing unit protection valve is in A-B, C-D connected state, and inside is in A-
D, three sensing units are in by guard mode when B-C connected state, and sensing unit is isolated with gas circuit, can also remove sensing at this time
Unit repairs.
The utility model be collect gas sampling, calibration, analysis (or detection) and sensing unit be protected in it is 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 inspection with humidity sensing unit, purity sensing unit and oxygen sensor unit in the utility model
Measured data is compared, and judges the reliability and accuracy of detection data.
In conclusion the utility model has the following beneficial effects:
1, the utility model can make sample gas meet the requirement of each sensing unit in-site measurement well, ensure that each sensing is single
Member can be steady in a long-term work.
2, the utility model is provided with automatic drained oil filter group in gas circuit, can automatic pollution discharge, prevent sensing unit oily
Pollution, it is ensured that the service life of each sensing unit in hydrogen quality system reduces maintenance, reduces maintenance cost.
3, the utility model provides calibration gas air inlet pipeline, and the independent calibration convenient for purity and oxygen content sensing unit makes
With；
4, the carbon dioxide gas when entering the gas for having injury to sensing unit in system such as in hydrogen replacement process,
The utility model can open sensing unit and isolation of system, and sensing unit is protected not to be damaged；Sensing unit is gone back when removing maintenance
It can prevent gas from leaking outside.
5, the utility model provides sampling valve and sample tap, and the data of access master meter and on-line monitoring is facilitated to be compared
It is right, judge the reliability and accuracy of detection data.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, the hydrogen on-line analysis separate calibrations sampling system of the utility model comprising sample gas air inlet
It is pipeline 1, calibration gas air inlet pipeline 2, purity determination calibration switching valve 3A, oxygen measurement calibration switching valve 3B, pressure reducer 4, wet
Spend sensing unit 6, purity sensing unit 7, oxygen sensor unit 8, humidity sensing unit protection valve 5A, the protection of purity sensing unit
Valve 5B, oxygen sensor cell protection valve 5C, emptying pipeline 9, the first threeway 12, the second threeway 17, third threeway 16, first is adjustable
Throttle meter 13A, the second regulating flow quantity meter 13B, automatic drained oil filter group 14 and sampling line 18；
Humidity sensing unit protects the construction of valve 5A, purity sensing unit protection valve 5B, oxygen sensor cell protection valve 5C
It is 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, and sample gas air inlet pipeline 1 goes out
Port is connected with 14 air inlet of automatic drained oil filter group, and 14 gas outlet of automatic drained oil filter group is connected to the first threeway 12
Second interface of first interface, the first threeway 12 is connect with the air inlet of sampling line 18, the third of the first threeway 12
Interface is connected with the A interface of humidity sensing unit protection valve 5A, and humidity sensing unit 6 is serially connected with humidity sensing unit protection valve
Between the B interface and C interface of 5A, the D interface of humidity sensing unit protection valve 5A is connected with the air inlet of pressure reducer 4；Pressure reducer 4
Gas outlet be connected with first interface of the second threeway 17, gas is divided by the second threeway 17 by two-way, the second threeway 17
Second interface and third interface respectively with purity determination calibration switching valve 3A first interface and oxygen measurement calibration switch
First interface of valve 3B is connected；
The air inlet of calibration gas air inlet pipeline 2 is used to connect external Standard Gases gas source, calibration gas air inlet pipeline 2
Gas outlet is connected with first interface of third threeway 16；Gas is divided into two-way by third threeway 16, third threeway 16
Second interface and third interface calibrate switching valve with second interface of purity determination calibration switching valve 3A and oxygen measurement respectively
Second interface of 3B 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, the
The gas outlet of one regulating flow quantity meter 13A is connected with the A interface of purity sensing unit protection valve 5B, and purity sensing unit 7 is gone here and there
It is coupled between the B interface and C interface of purity sensing unit protection valve 5B, purity sensing unit protects D interface and the emptying of valve 5B
Pipeline 9 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, the
The gas outlet of two regulating flow quantity meter 13B is connected with the A mouth of oxygen sensor cell protection valve 5C, and oxygen sensor unit 8 is connected
Between the B interface and C interface of oxygen sensor cell protection valve 5C, the D interface of oxygen sensor cell protection valve 5C passes through the 4th
Threeway 19 is 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 utility model further includes the mounting rack 15 for part each in fixed installation system, and mounting rack 15, which is provided with, to be used for
The mounting hole of fixing and mounting bracket 15.
Humidity sensing unit protection valve 5A, purity sensing unit protection valve 5B, oxygen sensor unit are protected in the utility model
Three sensing units are measuring state when the inside of shield valve 5C is in A-B, C-D connected state, and inside is in A-D, B-C connected state
Three sensing units are in by guard mode when state, and sensing unit is isolated with gas circuit, can also be removed sensing unit at this time and be tieed up
It repairs.
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 list in the utility model
The detection data of member 8 is compared, and judges the reliability and accuracy of detection data.
The present embodiment not makes any form of restriction the shape of the utility model, material, structure etc., all foundations
The technical essence of the utility model any simple modification, equivalent change and modification to the above embodiments, belong to this reality
With the protection scope of new technique scheme.
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 |
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| CN201821812578.7U CN209167263U (en) | 2018-11-05 | 2018-11-05 | Hydrogen on-line analysis separate calibrations sampling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821812578.7U CN209167263U (en) | 2018-11-05 | 2018-11-05 | Hydrogen on-line analysis separate calibrations sampling system |
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| CN209167263U true CN209167263U (en) | 2019-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283297A (en) * | 2018-11-05 | 2019-01-29 | 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 CN201821812578.7U patent/CN209167263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283297A (en) * | 2018-11-05 | 2019-01-29 | 河南省日立信股份有限公司 | Hydrogen on-line analysis separate calibrations sampling system |
| CN109283297B (en) * | 2018-11-05 | 2024-04-26 | 河南省日立信股份有限公司 | Independent calibration sampling system for hydrogen online analysis |
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