CN207096165U - Mixed gas concentration on-line measurement device - Google Patents
Mixed gas concentration on-line measurement device Download PDFInfo
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- CN207096165U CN207096165U CN201720947826.8U CN201720947826U CN207096165U CN 207096165 U CN207096165 U CN 207096165U CN 201720947826 U CN201720947826 U CN 201720947826U CN 207096165 U CN207096165 U CN 207096165U
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Abstract
The utility model discloses mixed gas concentration on-line measurement device, the measurement accuracy for solving the problems, such as sensor of the prior art can not ensure.The utility model includes the air extractor being connected under test gas space, the mass spectrograph connected with air extractor (4)；The air extractor includes the sample gas collection tube (1) connected with mixed gas under test gas space, the air accumulator (3) connected by air pump (2) with sample gas collection tube (1)；The mass spectrograph (4) connects with air accumulator (3).The utility model has safety, carries out the on-line checking of mixed gas concentration in real time, and detection speed is fast, can survey the advantages that component is more.
Description
Technical field
It the utility model is related to a kind of measurement apparatus, and in particular to mixed gas concentration on-line measurement device.
Background technology
Nuclear Safety is the most significant problems that nuclear power developing faces, although three generations's nuclear power technology inherent safety is very at present
Height, but Fukushima, Japan nuclear accident illustrates that it is quick-fried that Nuclear Safety still suffers from hydrogen under many risks, especially nuclear plant severe accident
Fried risk.In pressurized-water reactor nuclear power plant major accident, coolant loss will cause Core uncovering, the zircaloy fuel of heap in-core high temperature
With water or vapor violent heat-producing chemical reaction will occur for involucrum, discharge substantial amounts of hydrogen and heat, these hydrogen
It will be discharged by primary Ioops pressure boundary cut to containment.After the failure of post incident lower head of pressure vessel, reactor core melting
The reaction of thing and concrete and the water RADIATION DECOMPOSITION of heap intracavitary can also produce substantial amounts of hydrogen.Substantial amounts of hydrogen is discharged to safety
It after shell, will be mixed with the air in containment, the regional area of high hydrogen concentration formed in the short time, if do not had in containment
Corresponding hydrogen management game, then the accumulation of localized hydrogen gas may cause acute combustion or fire, and produce and exceed to containment
The temperature load or pressure load of its designed capacity, destroy the integrality of containment, radioactive substance is leaked into environment
Cause the serious consequence of radioactive pollution.Therefore, nuclear power station design and operation must there is reliable density of hydrogen to monitor and control
Means processed.
For confined space gas concentration measurement, mainly there are two kinds of metering systems at present, one kind is to put analyte sensors
In in confined space, working sensor environment is probably high temperature, high pressure, high humidity, and most of measurement of concetrations are used at present
Sensor can not reliably work under this adverse circumstances, still be emerged without the product of maturation.Another kind is from safety by gas
Extract out in shell, by cooling, being depressured, pre-treatment, the feeding measurement apparatus such as dehumidify measure gas concentration.Compared in confined space
Hot and humid environment, the gaseous vapor after cooling and dehumidifying are converted into aqueous water and are removed, and the gas component after processing occurs
Significant change, causes measurement result larger error to be present, and measurement accuracy can not ensure.
Utility model content
Technical problem to be solved in the utility model is：The measurement accuracy of sensor of the prior art can not ensure
The problem of, and it is an object of the present invention to provide the mixed gas concentration on-line measurement device to solve the above problems.
The utility model is achieved through the following technical solutions：
Mixed gas concentration on-line measurement device, including the air extractor being connected under test gas space, filled with pumping
Put the mass spectrograph of connection；The air extractor includes the sample gas collection tube connected with mixed gas under test gas space, passes through
The air accumulator that air pump connects with sample gas collection tube；The mass spectrograph connects with air accumulator.
The utility model can carry out the on-line checking of mixed gas concentration safely, in real time by the setting of said structure,
And possesses multicomponent gas concentration on-line measurement ability, detection speed is fast, it is more to survey component, to detection environment and gas component
Without concrete restriction.And electromagnetic interference will not be produced to test environment, it can stablize under high temperature, high pressure, high humility adverse circumstances
Work, thus measurement apparatus of the present utility model can meet the gas concentration measurement under high temperature, high pressure, high humility condition of work
It is required that.
Further, the air extractor is more than one, and the mass spectrograph passes through in rotary valve and whole air extractors
Air accumulator connects.
By the optimal design-aside of said structure, it is not only only capable of meeting multicomponent gas concentration on-line measurement, and can also
Meet the detection of multi-measuring point.Also, it cannot be only used for nuclear power station density of hydrogen on-line checking, it can also be used to need online inspection simultaneously
The occasion of multiple gases concentration of component is surveyed, effect is more notable.
In order that the structure of measurement is more accurate, the heating for air accumulator heating and thermal insulation is additionally provided with the air accumulator
Thermal insulation cabinet.Connecting line between the air accumulator and under test gas space is disposed as being incubated transfer conduit.
By the setting of said structure, water vapor condensation in gaseous mixture can be effectively prevented, and then avoid water vapor condensation from leading
The problem of testing result inaccuracy of cause, make Detection results more accurate.
Further, it is provided with exhaust emission pipe on the mass spectrograph and air accumulator.It is useless by what is set on mass spectrograph
Gas discharge tube is advantageous to the gas after being detected in mass spectrograph and discharged, and the setting of exhaust emission pipe, not only only has on air accumulator
Beneficial to the discharge of gas in air accumulator, moreover, the setting for passing through exhaust emission pipe, moreover it is possible to use sample gas before air accumulator gas storage
Air accumulator is cleaned, effectively avoids other miscellaneous gas from influenceing the degree of accuracy that sample gas concentration detects in air accumulator, preferably improves detection
The degree of accuracy.
Further, display storage device is also communicated with the mass spectrograph.The mass spectrograph by remote-transmission module with
Show the connection of storage device signal.
Preferably, the sample gas collection tube is stainless steel pipes.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model can carry out the on-line checking of mixed gas concentration safely, in real time, and can be in high temperature, height
Steady operation under pressure, high humility adverse circumstances, possesses multicomponent gas concentration on-line measurement ability, to detection environment and gas group
Divide without concrete restriction, Detection results are quick and precisely；
2nd, the utility model is not only only capable of meeting multicomponent gas concentration on-line measurement, and can also meet the inspection of multi-measuring point
Survey；Also, it cannot be only used for nuclear power station density of hydrogen on-line checking, it can also be used to need on-line checking multiple gases component simultaneously
The occasion of concentration；
3rd, the utility model is simple in construction, cost is low, significant effect.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is structural representation of the present utility model.
Mark and corresponding parts title in accompanying drawing：
1- sample gas collection tubes, 2- air pumps, 3- air accumulators, 4-- mass spectrographs, 5- heating and thermal insulation cabinets, 6- exhaust emission pipes.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1
Mixed gas concentration on-line measurement device, as shown in figure 1, including the pumping dress being connected under test gas space
Put, the mass spectrograph 4 connected with air extractor；The air extractor includes the sample gas connected with mixed gas under test gas space
Collection tube 1, the air accumulator 3 connected by air pump 2 with sample gas collection tube 1.It is provided with the mass spectrograph 4 and air accumulator 3 useless
Gas discharge tube 6.The quantity of the air extractor is arranged to one in the present embodiment.
The specific work process of the present embodiment is as follows：
(1) the sample gas collection tube 1 of front end uses 1/4 inch of stainless steel pipes, and one end is built under test gas space, another
End is connected with air accumulator 3, and air pump 2 is set on the pipeline between air accumulator 3 and under test gas space, when detection starts, starts gas
Pump 2, sample gas enter in air accumulator 3 by the road；
(2) air accumulator 3 is connected with exhaust emission pipe 6, and air accumulator is cleaned 15 seconds using sample gas；
(3) close air accumulator 3 to export, after pressure inside the tank rises to 0.15MPa, air pump 2 is closed, air accumulator 3 and mass spectrum
Instrument 4 connects, and sample gas obtains testing result after mass spectrograph 4 carries out analysis detection；
(4) sample gas after the completion of detecting in mass spectrograph 4 and air accumulator 3 drains into air by exhaust emission pipe 6.
Embodiment 2
The present embodiment and the difference of embodiment 1 are that the quantity that the present embodiment optimizes air extractor is set, specific to set
For：In the present embodiment, the air extractor is two or more, and the mass spectrograph 4 is connected by rotary valve with whole air extractors.
The specific work process of the present embodiment is as follows：
(1) the sample gas collection tube 1 of air extractor front end uses 1/4 inch of stainless steel pipes, and one end is built under test gas
Space, the other end connect with air accumulator 3, air pump 2 are set on the pipeline between air accumulator 3 and under test gas space, detection starts
When, booster air pump 2, sample gas enters in air accumulator 3 by the road；
(2) air accumulator 3 is connected with exhaust emission pipe 6, and air accumulator is cleaned 15 seconds using sample gas；
(3) close air accumulator 3 to export, after pressure inside the tank rises to 0.15MPa, air pump 2 is closed, air accumulator 3 and mass spectrum
Rotary valve connection on instrument 4, the rotated valve of sample gas, which sequentially enters, carries out analysis detection in mass spectrograph 4, rotated by controlling
Valve, mass spectrograph 4 can be achieved and connected from different air accumulators 3, complete multiple different measuring points gas concentration detections；
(4) sample gas after the completion of detecting in mass spectrograph 4 and air accumulator 3 drains into air by exhaust emission pipe 6.
Embodiment 3
The present embodiment and the difference of embodiment 1 or 2 are that the present embodiment optimizes the structure setting of air extractor, specifically
It is arranged to：
The heating and thermal insulation cabinet 5 for the heating and thermal insulation of air accumulator 3 is additionally provided with the air accumulator 3.The air accumulator 3 is with treating
The connecting line surveyed between the gas compartment is disposed as being incubated transfer conduit.
By the setting of said structure, it can effectively reach the effect of insulation, prevent water vapor condensation in sample gas, make detection
Effect is more accurate.
Embodiment 4
The present embodiment is to increase a display storage device on the basis of embodiment 1 or 2, and the display storage device can be with
Wired connection is directly realized by transmission line with mass spectrograph 4, remote-transmission module can also be used to realize and show storage device and matter
Being wirelessly transferred between spectrometer 4.In the present embodiment preferably by the way of being wirelessly transferred.
By above-mentioned setting, after the completion of gas detection, effectively working result can be transmitted to display storage dress in real time
Put middle progress real-time display and storage.Display storage device in the present embodiment can be only aobvious with data storage function
Display screen or the computer with control process function.Meanwhile have when the display storage device in the present embodiment uses
During the computer of control process function, remote control effectively can be carried out to rotary valve, and then realize mass spectrograph 4 and different air accumulators
Connection between 3, complete multiple different measuring points gas concentration detections.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (7)
1. mixed gas concentration on-line measurement device, it is characterised in that：Including the air extractor being connected under test gas space,
The mass spectrograph (4) connected with air extractor；
The air extractor includes the sample gas collection tube (1) that connect with mixed gas under test gas space, by air pump (2) and
The air accumulator (3) of sample gas collection tube (1) connection；The mass spectrograph (4) connects with air accumulator (3)；
The heating and thermal insulation cabinet (5) for air accumulator (3) heating and thermal insulation is additionally provided with the air accumulator (3).
2. mixed gas concentration on-line measurement device according to claim 1, it is characterised in that the air extractor is one
More than individual, the mass spectrograph (4) is connected by rotary valve with the air accumulator (3) in whole air extractors.
3. mixed gas concentration on-line measurement device according to claim 1, it is characterised in that the air accumulator (3) with
Connecting line between under test gas space is disposed as being incubated transfer conduit.
4. mixed gas concentration on-line measurement device according to claim 1, it is characterised in that the mass spectrograph (4) and
Exhaust emission pipe (6) is provided with air accumulator (3).
5. mixed gas concentration on-line measurement device according to claim 1, it is characterised in that on the mass spectrograph (4)
Also it is communicated with display storage device.
6. mixed gas concentration on-line measurement device according to claim 5, it is characterised in that the mass spectrograph (4) is logical
Remote-transmission module is crossed to be connected with display storage device signal.
7. mixed gas concentration on-line measurement device according to claim 1, it is characterised in that the sample gas collection tube
(1) it is stainless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947826.8U CN207096165U (en) | 2017-07-31 | 2017-07-31 | Mixed gas concentration on-line measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947826.8U CN207096165U (en) | 2017-07-31 | 2017-07-31 | Mixed gas concentration on-line measurement device |
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| CN207096165U true CN207096165U (en) | 2018-03-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982583A (en) * | 2018-06-20 | 2018-12-11 | 中国辐射防护研究院 | The method and apparatus of Engineering Barrier Materials gas on-line testing under heat effect |
| CN108982227A (en) * | 2018-06-20 | 2018-12-11 | 中国辐射防护研究院 | Gas testing systems are used in a kind of Engineering Barrier Materials research in geological disposal near field |
| CN113670770A (en) * | 2021-09-16 | 2021-11-19 | 湖北航天化学技术研究所 | AlH-containing catalyst3Propellant thermal decomposition detection method |
| CN113777177A (en) * | 2020-06-09 | 2021-12-10 | 中国石油天然气股份有限公司 | Detection system and detection method for sulfur compounds in gas |
| CN116539381A (en) * | 2023-07-05 | 2023-08-04 | 广东电网有限责任公司佛山供电局 | Gas detection device and control method |
-
2017
- 2017-07-31 CN CN201720947826.8U patent/CN207096165U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982583A (en) * | 2018-06-20 | 2018-12-11 | 中国辐射防护研究院 | The method and apparatus of Engineering Barrier Materials gas on-line testing under heat effect |
| CN108982227A (en) * | 2018-06-20 | 2018-12-11 | 中国辐射防护研究院 | Gas testing systems are used in a kind of Engineering Barrier Materials research in geological disposal near field |
| CN113777177A (en) * | 2020-06-09 | 2021-12-10 | 中国石油天然气股份有限公司 | Detection system and detection method for sulfur compounds in gas |
| CN113777177B (en) * | 2020-06-09 | 2024-03-26 | 中国石油天然气股份有限公司 | System and method for detecting sulfur compounds in gas |
| CN113670770A (en) * | 2021-09-16 | 2021-11-19 | 湖北航天化学技术研究所 | AlH-containing catalyst3Propellant thermal decomposition detection method |
| CN116539381A (en) * | 2023-07-05 | 2023-08-04 | 广东电网有限责任公司佛山供电局 | Gas detection device and control method |
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