CN106872648A - The fast calibration device and scaling method of nuclear power station fire alarm system hydrogen gas detector - Google Patents
The fast calibration device and scaling method of nuclear power station fire alarm system hydrogen gas detector Download PDFInfo
- Publication number
- CN106872648A CN106872648A CN201710100822.0A CN201710100822A CN106872648A CN 106872648 A CN106872648 A CN 106872648A CN 201710100822 A CN201710100822 A CN 201710100822A CN 106872648 A CN106872648 A CN 106872648A
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- gas
- source
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- measured
- flow
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 76
- 239000001257 hydrogen Substances 0.000 claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 2
- 150000002431 hydrogen Chemical class 0.000 abstract description 6
- 230000002045 lasting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- G01N33/0006—Calibrating gas analysers
Abstract
The present invention relates to a kind of fast calibration device and scaling method of nuclear power station fire alarm system hydrogen gas detector, caliberating device includes the first source of the gas for providing air, the second source of the gas for providing standard hydrogen, the switching valve, the flow detector that are sequentially connected in series by pipeline, and the measurement interface to be demarcated with hydrogen gas detector to be measured connection is connected with flow detector.First source of the gas, the second source of the gas are connected with switching valve respectively, switching valve switch operating state with respectively by the first source of the gas, the second source of the gas gas through flow detector to measurement interface export.Caliberating device of the invention carries out the demarcation of zero point and range with air, hydrogen respectively, and calibration process simple and fast, data are accurately controllable, one people's operation will soon be completed, manpower is saved, operating efficiency is improved, allows the utilization rate of nuclear power generating sets to get a promotion.
Description
Technical field
The present invention relates to nuclear power field, more specifically to a kind of the quick of nuclear power station fire alarm system hydrogen gas detector
Caliberating device and scaling method.
Background technology
Hydrogen gas detector utilizes electrochemical principle, and when having tested gas in air or evaporating, detector is to produce
To be tested the proportional electric signal of gas concentration in air, the signal is passed to controller, controller shown after treatment by
Survey gas concentration.When tested gas concentration meets or exceeds setting value, controller is to send sound, visual alarm and output to have
Control signal is closed, starts corresponding control device, so as to avoid the generation of major accident.Because there is intrinsic drift in gas sensor
Characteristic, therefore need to be periodically with the hydrogen of compressed air and 50%LEL to its zero point and range designation.
The fire-fighting system nuclear island of nuclear power station generally has many hydrogen gas detectors, demarcates once within every 6 months on request, mark
Corresponding nuclear power generating sets are unavailable between periodically.In calibration process, manpower need to be leaned on frequently to dismount instrument pipeline, manually control mark
Throughput and duration of ventilation, need 5 people to coordinate and complete, and there is inefficiency and flow is controlled unstable and influences calibration mass feelings
Condition, when particularly having larger air-flow to blow to detector, there is the hidden danger for damaging gas sensor.In terms of time control, each spy
Device demarcation is surveyed to complete about to need 20 minutes, therefore the work need to take the nuclear power generating sets substantial amounts of time, it is less efficient.
The content of the invention
The technical problem to be solved in the present invention is, there is provided a kind of Fast Calibration of nuclear power station fire alarm system hydrogen gas detector
Device and scaling method.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of nuclear power station fire alarm system hydrogen detection
The fast calibration device of device, including for providing the first source of the gas of air, the second source of the gas for providing standard hydrogen, by pipe
Switching valve, flow detector that road is sequentially connected in series, and be connected with the flow detector with hydrogen to be measured visit
Survey the measurement interface that device connection is demarcated；
First source of the gas, the second source of the gas are connected with the switching valve respectively, the switching valve switch operating state with point
The gas of first source of the gas, the second source of the gas is not exported through the flow detector to the measurement interface.
Preferably, the flow detector includes flowmeter.
Preferably, the flow is calculated as the one kind in vane-wheel type flowmeter, differential pressure flowmeter, ultrasonic flowmeter.
Preferably, the measurement interface is provided with the joint of connection corresponding with the hydrogen gas detector to be measured.
Preferably, the pipeline is copper pipe.
Preferably, the fast calibration device also include control unit, described control unit respectively with the switching valve, stream
Gauge is communicated to connect, to send the flow signal of switching signal and the reception flow detector to the switching valve.
Preferably, the regulating valve of adjusting gas flow is additionally provided between the switching valve and the flow detector.
Preferably, the regulating valve is communicated to connect with described control unit, and Regulate signal is sent with to the regulating valve.
Preferably, the fast calibration device is also included for being first source of the gas, the second source of the gas, switching valve, flow
Detection means, control unit, regulating valve provide the power supply unit of electric energy.
Preferably, the fast calibration device also includes moving cart, first source of the gas, the second source of the gas, switching valve, stream
Amount detecting device, control unit, regulating valve, power supply unit are arranged in the moving cart.
The present invention also constructs a kind of quick calibrating method of nuclear power station fire alarm system hydrogen gas detector, comprises the following steps：
S1, allow provide air the first source of the gas connected with hydrogen gas detector to be measured, persistently treated to described by specific flow
After survey hydrogen gas detector blows one section of duration, stop being blown to the hydrogen gas detector to be measured, complete the hydrogen gas detector to be measured
Zero calibration；
S2, allow the second source of the gas of offer standard hydrogen to be connected with the hydrogen gas detector to be measured, continue by default flow
After blowing one section of duration to the hydrogen gas detector to be measured, stop being blown to the hydrogen gas detector to be measured, realize the hydrogen to be measured
The demarcation of gas detector range；
S3, allow first source of the gas to be connected with the hydrogen gas detector to be measured again, one is blown to the hydrogen gas detector to be measured
After Duan Shichang, stop being blown to the hydrogen gas detector to be measured, complete to demarcate.
Preferably, switching valve is provided between first source of the gas, the second source of the gas and the hydrogen gas detector to be measured, will
First source of the gas, the second source of the gas are connected with the hydrogen gas detector to be measured respectively.
Preferably, regulating valve is provided between the switching valve and the hydrogen gas detector to be measured, with adjusting gas flow.
Implement the fast calibration device and scaling method of nuclear power station fire alarm system hydrogen gas detector of the invention, with following
Beneficial effect：Caliberating device of the invention carries out the demarcation of zero point and range with air, hydrogen respectively, and calibration process is simply fast
Victory, data are accurately controllable, and people operation will soon be completed, and save manpower, improve operating efficiency, allow nuclear power generating sets
Utilization rate get a promotion.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the fast calibration device of the nuclear power station fire alarm system hydrogen gas detector in the embodiment of the present invention to hydrogen to be measured
Principle schematic diagram. when detector is demarcated.
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and effect, now compare accompanying drawing and describe in detail
Specific embodiment of the invention.
As shown in figure 1, nuclear power station fire alarm system hydrogen gas detector is demarcated in a preferred embodiment of the invention
Fast calibration device is including the first source of the gas 1 for providing air, the second source of the gas 2 for providing standard hydrogen, by pipeline 7
Switching valve 3, the flow detector 4 being sequentially connected in series, and be connected with flow detector 4 with hydrogen gas detector to be measured
The measurement interface 5 that 6 connections are demarcated.
First source of the gas 1, the second source of the gas 2 are usually canned, and convenient carrying carries.First source of the gas 1, the second source of the gas 2 respectively with
Switching valve 3 is connected, the switch operating state of switching valve 3 with respectively by the first source of the gas 1, the second source of the gas 2 gas through flow detection fill
4 are put to be exported to measurement interface 5.
When demarcating, scaling method is comprised the following steps：
S1, allow provide air the first source of the gas 1 connect 6 with hydrogen gas detector to be measured, by specific flow persistently to be measured
After hydrogen gas detector 6 blows one section of duration, stop being blown to hydrogen gas detector to be measured 6, complete the zero point mark of hydrogen gas detector 6 to be measured
It is fixed.
Specifically, in the present embodiment, first allow the first source of the gas 1 to be connected with switching valve 3, allow air to be examined through switching valve 3, flow
Hydrogen gas detector to be measured 6 is blown by specific flow after surveying the outflow measurement interface 5 of device 4, duration is usually 20 seconds, has blown
After stop being blown to hydrogen gas detector to be measured 6.Due to no hydrogen, the result that hydrogen gas detector to be measured 6 is measured should be zero, can
Hydrogen gas detector to be measured 6 is allowed to mark to zero point.
S2, demarcated zero point after, allow the second source of the gas 2 of offer standard hydrogen to be connected with hydrogen gas detector to be measured 6, by default
Flow one section of duration persistently is blown to hydrogen gas detector to be measured 6 after, stop being blown to hydrogen gas detector to be measured 6, realize hydrogen to be measured
The demarcation of the range of gas detector 6
Specifically, in the present embodiment, then allow the second source of the gas 2 to be connected with switching valve 3, allow hydrogen to be examined through switching valve 3, flow
Persistently hydrogen gas detector to be measured 6 is blown according to specific flow after surveying the outflow measurement interface 5 of device 4, lasting duration is generally
35 seconds, flow was the preset value of standard hydrogen, such as 0.9L/Min or other flow standards, is stopped after having blown to hydrogen detection to be measured
Device 6 is blown.Due to there was only hydrogen, it is possible to achieve the demarcation of range.
It is S3, last, then allow the first source of the gas 1 to be connected with hydrogen gas detector to be measured 6, when blowing one section to hydrogen gas detector to be measured 6
After length, stop being blown to hydrogen gas detector to be measured 6, complete to demarcate.
Specifically, in the present embodiment, then allow the first source of the gas 1 to be connected with switching valve 3, allow air to be examined through switching valve 3, flow
Hydrogen gas detector to be measured 6 is blown after surveying the outflow measurement interface 5 of device 4, lasting duration is generally 15 seconds, stops after the time is much of that
Blown to hydrogen gas detector to be measured 6, you can complete to demarcate.
Calibration process simple and fast, data are accurately controllable, and people's operation will soon be completed, and save manpower, be lifted
Operating efficiency, allows the utilization rate of nuclear power generating sets to get a promotion.Preferably, pipeline 7 is copper pipe, it is possible to reduce external temperature
Influence to gas in pipeline 7, lifts the accuracy demarcated.In other embodiments, also can be by switching valve 3, gas through flow
Detection means 4 is omitted, and is directly connected the first source of the gas 1, the second source of the gas 2 with hydrogen gas detector to be measured 6 respectively using manual switching,
The first source of the gas 1, the second source of the gas 2 itself is allowed to be blown specific duration to hydrogen gas detector to be measured 6 by specific flow, more than realization
The demarcation of each step.
Further, flow detector 4 includes flowmeter, the flow velocity for measuring the gas for flowing through, and allows gas by mark
The flow of provisioning request is flowed through, and flow can be monitored in real time, improves the accuracy and precision of demarcation.
In certain embodiments, flow is calculated as in vane-wheel type flowmeter, or differential pressure flowmeter, ultrasonic flowmeter
Kind, can guarantee that the accuracy of measurement.
Measurement interface 5 is provided with the joint of connection corresponding with hydrogen gas detector to be measured 6, realizes and hydrogen gas detector to be measured 6
Quick connection, lifted demarcate efficiency.In other embodiments, measurement interface 5 also can be with hydrogen gas detector to be measured 6 using slotting
Structure or flange bindiny mechanism are pulled out, can realize quickly connecting and can guarantee that sealing.
Fast calibration device also includes control unit 8, and control unit 8 communicates with switching valve 3, flow detector 4 respectively
Connection, to send the flow signal of switching signal and reception flow detector 4 to switching valve 3.
Preferably, the regulating valve 9 of adjusting gas flow is additionally provided between switching valve 3 and flow detector 4, there is tune
Section valve 9, can more direct management and control flow.In other embodiments, also can be in the first source of the gas 1, the outlet port of the second source of the gas 2
The device of regulation flow is set, allows flow to be adjusted management and control when the first source of the gas 1, the second source of the gas 2 are discharged.
Regulating valve 9 is communicated to connect with control unit 8, and Regulate signal is sent with to regulating valve 9.Can demarcate when root
Flow is adjusted in real time according to measurement situation, makes flow more accurate.
Further, fast calibration device is also included for being the first source of the gas 1, the second source of the gas 2, switching valve 3, flow detection
Device 4, control unit 8, regulating valve 9 provide the power supply unit of electric energy, allow when demarcating, without going for external power supply, more
It is convenient.Power supply unit is electrically connected with control unit, and controlling switch 81 is provided between power supply unit and control unit, controls power supply
Startup, close.
In certain embodiments, fast calibration device also includes moving cart, the first source of the gas 1, the second source of the gas 2, switching valve
3rd, flow detector 4, control unit 8, regulating valve 9, power supply unit are arranged in moving cart, can allow fast calibration device
Overall to move together, the convenient hydrogen gas detector to be measured 6 to diverse location is demarcated, and eliminates the problem of dismounting, lifts work
Make efficiency.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of fast calibration device of nuclear power station fire alarm system hydrogen gas detector, it is characterised in that including for providing air
The first source of the gas（1）, the second source of the gas for providing standard hydrogen（2）, by pipeline（7）The switching valve being sequentially connected in series
（3）, flow detector（4）, and with the flow detector（4）Connection with hydrogen gas detector to be measured（6）Connect into
The fixed measurement interface of rower（5）；
First source of the gas（1）, the second source of the gas（2）Respectively with the switching valve（3）Connection, the switching valve（3）Switch operating
State is with respectively by first source of the gas（1）, the second source of the gas（2）Gas through the flow detector（4）To the measurement
Interface（5）Output.
2. fast calibration device according to claim 1, it is characterised in that the flow detector（4）Including flow
Meter；
The flow is calculated as the one kind in vane-wheel type flowmeter, differential pressure flowmeter, ultrasonic flowmeter.
3. fast calibration device according to claim 1, it is characterised in that the measurement interface（5）Be provided with it is described
Hydrogen gas detector to be measured（6）The joint of correspondence connection；
The pipeline（7）It is copper pipe.
4. the fast calibration device according to any one of claims 1 to 3, it is characterised in that the fast calibration device is also
Including control unit（8）, described control unit（8）Respectively with the switching valve（3）, flowmeter communication connection, cut with to described
Change valve（3）Send switching signal and receive the flow detector（4）Flow signal.
5. fast calibration device according to claim 4, it is characterised in that the switching valve（3）With the flow detection
Device（4）Between be additionally provided with the regulating valve of adjusting gas flow（9）；
The regulating valve（9）With described control unit（8）Communication connection, with to the regulating valve（9）Send Regulate signal.
6. fast calibration device according to claim 5, it is characterised in that the fast calibration device is also included for being
First source of the gas（1）, the second source of the gas（2）, switching valve（3）, flow detector（4）, control unit（8）, regulating valve（9）Carry
The power supply unit of power supply energy.
7. fast calibration device according to claim 6, it is characterised in that the fast calibration device also includes that movement is small
Car, first source of the gas（1）, the second source of the gas（2）, switching valve（3）, flow detector（4）, control unit（8）, regulating valve
（9）, power supply unit be arranged on the moving cart on.
8. a kind of quick calibrating method of nuclear power station fire alarm system hydrogen gas detector, it is characterised in that comprise the following steps：
S1, allow provide air the first source of the gas（1）Connected with hydrogen gas detector to be measured（6）, by specific flow persistently to described
Hydrogen gas detector to be measured（6）After blowing one section of duration, stop to the hydrogen gas detector to be measured（6）Blow, complete the hydrogen to be measured
Gas detector（6）Zero calibration；
S2, allow the second source of the gas of offer standard hydrogen（2）With the hydrogen gas detector to be measured（6）Connection, is held by default flow
Continue to the hydrogen gas detector to be measured（6）After blowing one section of duration, stop to the hydrogen gas detector to be measured（6）Blow, realize institute
State hydrogen gas detector to be measured（6）The demarcation of range；
S3, allow first source of the gas again（1）With the hydrogen gas detector to be measured（6）Connection, to the hydrogen gas detector to be measured（6）
After blowing one section of duration, stop to the hydrogen gas detector to be measured（6）Blow, complete to demarcate.
9. quick calibrating method according to claim 8, it is characterised in that in first source of the gas（1）, the second source of the gas
（2）With the hydrogen gas detector to be measured（6）Between be provided with switching valve（3）, by first source of the gas（1）, the second source of the gas（2）Point
Not with the hydrogen gas detector to be measured（6）Connection.
10. quick calibrating method according to claim 9, it is characterised in that the switching valve and the hydrogen to be measured are visited
Survey device（6）Between be provided with regulating valve（9）, with adjusting gas flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100822.0A CN106872648A (en) | 2017-02-23 | 2017-02-23 | The fast calibration device and scaling method of nuclear power station fire alarm system hydrogen gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100822.0A CN106872648A (en) | 2017-02-23 | 2017-02-23 | The fast calibration device and scaling method of nuclear power station fire alarm system hydrogen gas detector |
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| Publication Number | Publication Date |
|---|---|
| CN106872648A true CN106872648A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710100822.0A Pending CN106872648A (en) | 2017-02-23 | 2017-02-23 | The fast calibration device and scaling method of nuclear power station fire alarm system hydrogen gas detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918788A (en) * | 2018-09-06 | 2018-11-30 | 汉威科技集团股份有限公司 | The finished product mark checking device and mark check system of detector |
| CN110320331A (en) * | 2019-08-02 | 2019-10-11 | 汉威科技集团股份有限公司 | A kind of Atmosphere Environment Monitoring System Bases |
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| CN102866232A (en) * | 2012-10-08 | 2013-01-09 | 中国矿业大学 | Automatic calibration method and device for gas sensor |
| CN105823713A (en) * | 2016-05-24 | 2016-08-03 | 深圳市蜂联科技有限公司 | Method for improving measuring precision of air quality detection device through iteration optimal calibration |
| CN205642674U (en) * | 2016-05-12 | 2016-10-12 | 广西防城港核电有限公司 | Long rod platinum resistance thermometer calibrating device |
-
2017
- 2017-02-23 CN CN201710100822.0A patent/CN106872648A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900716A (en) * | 2010-06-04 | 2010-12-01 | 嘉兴学院 | Online analysis system and method for monitoring harmful gases in livestock and poultry farm |
| CN102866232A (en) * | 2012-10-08 | 2013-01-09 | 中国矿业大学 | Automatic calibration method and device for gas sensor |
| CN205642674U (en) * | 2016-05-12 | 2016-10-12 | 广西防城港核电有限公司 | Long rod platinum resistance thermometer calibrating device |
| CN105823713A (en) * | 2016-05-24 | 2016-08-03 | 深圳市蜂联科技有限公司 | Method for improving measuring precision of air quality detection device through iteration optimal calibration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918788A (en) * | 2018-09-06 | 2018-11-30 | 汉威科技集团股份有限公司 | The finished product mark checking device and mark check system of detector |
| CN110320331A (en) * | 2019-08-02 | 2019-10-11 | 汉威科技集团股份有限公司 | A kind of Atmosphere Environment Monitoring System Bases |
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Application publication date: 20170620 |
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