CN116678689A - Inertial sampling device and mercury monitoring system - Google Patents

Inertial sampling device and mercury monitoring system Download PDF

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Publication number
CN116678689A
CN116678689A CN202310595571.3A CN202310595571A CN116678689A CN 116678689 A CN116678689 A CN 116678689A CN 202310595571 A CN202310595571 A CN 202310595571A CN 116678689 A CN116678689 A CN 116678689A
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CN
China
Prior art keywords
pipeline
sampling device
sampler
mercury
inertial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310595571.3A
Other languages
Chinese (zh)
Inventor
韩立鹏
钟犁
余长开
张茂龙
王万杰
陈飞云
苏林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Huaneng Changjiang Environmental Protection Technology Research Institute Co Ltd
Huaneng Chongqing Luohuang Power Generation Co Ltd
Original Assignee
Beijing Huaneng Changjiang Environmental Protection Technology Research Institute Co Ltd
Huaneng Chongqing Luohuang Power Generation Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Huaneng Changjiang Environmental Protection Technology Research Institute Co Ltd, Huaneng Chongqing Luohuang Power Generation Co Ltd filed Critical Beijing Huaneng Changjiang Environmental Protection Technology Research Institute Co Ltd
Priority to CN202310595571.3A priority Critical patent/CN116678689A/en
Publication of CN116678689A publication Critical patent/CN116678689A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/34—Purifying; Cleaning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • 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
    • 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
    • G01N33/0011—Sample conditioning
    • G01N33/0014—Sample conditioning by eliminating a gas
    • 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
    • G01N33/0011—Sample conditioning
    • G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure, temperature
    • 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
    • G01N33/0011—Sample conditioning
    • G01N33/0018—Sample conditioning by diluting a gas
    • 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—Specially adapted to detect a particular component
    • G01N33/0045—Specially adapted to detect a particular component for Hg
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G01N2001/386—Other diluting or mixing processes
    • G01N2001/387—Other diluting or mixing processes mixing by blowing a gas, bubbling

Abstract

The application discloses an inertial sampling device and a mercury monitoring system, wherein the inertial sampling device comprises a sampler, a diluter and an air compressor, the sampler is a U-shaped sampler, a first end of the sampler is a sample gas inlet, a second end of the sampler is a sample gas outlet, both ends of the sampler are positioned in a discharge source, a closing-in section is arranged on the first end, a sample gas pipe is arranged at one end, far away from the first end, of the closing-in section, a drainage device is arranged at the second end, the diluter is communicated with the sample gas pipe through a pipeline, and the air compressor is communicated with the drainage device through a pipeline. The inertial sampling device and the mercury monitoring system provided by the application have the advantages of less adsorption of fly ash to mercury and difficult blockage.

Description

Inertial sampling device and mercury monitoring system
Technical Field
The application relates to the technical field of mercury monitoring, in particular to an inertial sampling device and a mercury monitoring system.
Background
Mercury pollution is extremely toxic, persistent, global and bioaccumulative. Anthropogenic atmospheric mercury emissions are an important contributor to global mercury pollution. The method is characterized in that five industries such as coal-fired power plants, coal-fired industrial boilers, cement production, nonferrous metal smelting and waste incineration are main control sources aiming at atmospheric mercury emission control by the international mercury convention, and are key industries for developing mercury monitoring. The on-line monitoring of mercury emission is a key for accurately mastering the change rule of the concentration of mercury emission of a fixed source in real time so as to accurately obtain the total mercury emission measurement. The particles, acid gas components, moisture, temperature fluctuation and the like in the flue gas can influence the measurement result, and the measurement difficulty is very high. The sampler of the flue gas in the related technology is easy to be blocked by fly ash in the flue gas, and continuous monitoring and sampling of mercury in the flue gas are difficult to realize. Meanwhile, the accumulated fly ash in the sampler has adsorptivity to mercury, which easily leads to the accuracy of flue gas mercury monitoring data.
Disclosure of Invention
The present application aims to solve the above technical problems at least to some extent. Therefore, the embodiment of the application provides an inertial sampling device, which has the advantages of less adsorption of fly ash to mercury and difficult blockage.
According to the inertial sampling device provided by the embodiment of the application, the inertial sampling device comprises a sampler, a diluter and an air compressor, wherein the sampler is a U-shaped sampler, a first end of the sampler is a sample gas inlet, a second end of the sampler is a sample gas outlet, both ends of the sampler are positioned in a discharge source, a closing-in section is arranged on the first end, a sample air pipe is arranged at one end, far away from the first end, of the closing-in section, a drainage device is arranged at the second end, the diluter is communicated with the sample air pipe through a pipeline, and the air compressor is communicated with the drainage device through a pipeline.
The inertial sampling device provided by the embodiment of the application has the advantages of less adsorption of the fly ash to mercury and difficult blockage. The application smoothly discharges the smoke through the negative pressure formed by the drainage device, the smoke enters the sample air pipe and is diluted by the diluter to obtain the sample gas to be measured, and the sample gas to be measured is conveyed to the mercury analyzer for mercury on-line measurement.
In some embodiments, the sampler further comprises a frit layer positioned between the sample gas tube and the necked-in section.
In some embodiments, the air compressor is in communication with the sample air pipe through a pipeline, and a blowback valve is arranged on the pipeline between the air compressor and the sample air pipe.
In some embodiments, a diverter valve is disposed on the line between the air compressor and the diverter.
In some embodiments, the flow diverter comprises a first housing, a flow diverter, a flue gas tube and a mixing chamber, the flue gas tube and the flow diverter are positioned in the housing, the plurality of flow diverter are uniformly distributed in the circumferential direction of the flue gas tube, the outlets of the flue gas tube and the flow diverter are communicated with the mixing chamber, and the mixing chamber is communicated with the outlet of the housing.
In some embodiments, the diluter comprises a second housing, a pressure collecting tube and a tubule segment, wherein the second housing is provided with a sample gas inlet, a zero gas inlet and a dilution gas outlet respectively, the second housing is internally provided with a first cavity and a second cavity, the sample gas inlet and the zero gas inlet are communicated with the first cavity, the dilution gas outlet is communicated with the second cavity, and the first cavity and the second cavity are communicated through the tubule segment.
In some embodiments, the pressure acquisition tube is in communication with a vacuum gauge.
In some embodiments, the inertial sampling device further comprises a purifier in communication with the diluter via a conduit, the purifier being coupled to the air compressor.
In some embodiments, a dilution ratio adjustment valve is disposed on the line between the purifier and the diluter.
According to the mercury monitoring system provided by the embodiment of the application, the mercury monitoring system comprises an inertial sampling device, a first pipeline, a second pipeline and a mercury analyzer, wherein the first pipeline and the second pipeline are connected in parallel, the inertial sampling device is communicated with the mercury analyzer through the first pipeline and the second pipeline, the first pipeline is a bivalent mercury reduction section, the second pipeline is a bivalent mercury adsorption section, the first pipeline is provided with a reducer, and the second pipeline is provided with an absorber.
Drawings
Fig. 1 is a schematic diagram of a mercury monitoring system in accordance with an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of a diluter of an inertial sampling device according to an embodiment of the application.
FIG. 3 is a schematic side view of a flow diverter of an inertial sampling device according to an embodiment of the present application.
FIG. 4 is a schematic cross-sectional view of a flow diverter of an inertial sampling device according to an embodiment of the present application.
Reference numerals: 1. an emission source; 2. a U-shaped sampler; 5. a sample gas return line; 6. a closing-in section; 7. a drainage device; 71. a drainage tube; 72. a flue pipe; 73. a drainage gas inlet; 74. a mixed gas outlet; 8. a sample gas tube; 9. a diluter; 91. a zero gas inlet; 92. a dilution gas outlet; 93. a sample gas inlet; 94. a thin tube section; 95. a pressure collecting pipe; 10. a vacuum gauge; 11. an air compressor; 12. a drainage air valve; 13. a blowback valve; 14. a purifier; 15. a dilution ratio adjusting valve; 16. elemental mercury control valve; 17. an adsorber; 18. a total mercury control valve; 19. a reducer; 20. a mercury analyzer; 21. an exhaust gas discharge port; 22. a filter material layer.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
According to the inertial sampling device provided by the embodiment of the application, as shown in fig. 1 to 4, the inertial sampling device comprises a sampler, a diluter and an air compressor, wherein the sampler is a U-shaped sampler, a first end of the sampler is a sample gas inlet, a second end of the sampler is a sample gas outlet, both ends of the sampler are positioned in a discharge source, a closing-in section is arranged on the first end, a sample air pipe is arranged at one end, far away from the first end, of the closing-in section, the second end is provided with a drainage device, the diluter is communicated with the sample air pipe through a pipeline, and the air compressor is communicated with the drainage device through the pipeline. The U-shaped structure of the sampler can timely convey the sampling fly ash back to the flue, the fly ash can not stay in the sampler, the adsorption of the fly ash to mercury can be effectively reduced, and the accuracy of a test result is ensured. The closed section is arranged in the sampler, the narrow caliber of the closed section can enable airflow to accelerate so as to ensure that a collected smoke sample is close to a dust-free state, and smoke dust can be prevented from blocking the sampling tube when the sampler is applied to a sample source with fixed dust content. The mercury analyzer may employ an analytical instrument of cold atomic absorption spectrometry, cold atomic fluorescence spectrometry or zeeman-modulated atomic absorption spectrometry.
The inertial sampling device provided by the embodiment of the application has the advantages of less adsorption of the fly ash to mercury and difficult blockage.
In some embodiments, the sampler further comprises a filter layer positioned between the sample gas tube and the necked-in section.
Specifically, the filter material layer is arranged to filter the flue gas, so that the cleanness of the gas entering the sample gas pipe is ensured. The material of the filter material layer can be sintered titanium alloy.
In some embodiments, the air compressor is in communication with the sample air line via a conduit, and a blowback valve is disposed on the conduit between the air compressor and the sample air line.
Specifically, the air compressor is communicated with the sample air pipe through a pipeline, when the filter material layer is blocked by smoke dust, the back-blowing valve can be opened, and the air compressor sends air flow into the sample air pipe to flow so as to impact the filter material layer, so that the filter material layer is cleaned.
In some embodiments, a diverter valve is disposed on the line between the air compressor and the diverter.
Specifically, the drainage air valve is arranged to control the air compressor to provide air flow for the drainage device so as to cause siphon effect, and the flue gas and fly ash in the sampling device are ensured to smoothly flow back to the sample source.
In some embodiments, the flow diverter comprises a first housing, a draft tube, a flue tube and a mixing chamber, the flue tube and draft tube are located in the housing, the plurality of draft tubes are evenly distributed in the circumferential direction of the flue tube, the outlets of the flue tube and draft tube are communicated with the mixing chamber, and the mixing chamber is communicated with the outlet of the housing.
Specifically, a plurality of drainage tubes encircle the flue gas pipe and arrange, and the drainage tube is linked together with air compressor, and the high-speed air current that comes from air compressor has formed the low pressure district at the mixing chamber and has provided big suction to the flue gas pipe, and the flue gas pipe communicates with the sample thief, has guaranteed that the flue gas flows fast and makes sampling process go on in succession. The gas from the draft tube and the flue gas from the flue gas tube mix in the mixing chamber and flow back to the exhaust source through the second end of the sampler.
In some embodiments, the diluter comprises a second housing, a pressure collecting tube and a thin tube section, wherein a sample gas inlet, a zero gas inlet and a dilution gas outlet are respectively arranged on the second housing, a first cavity and a second cavity are formed in the second housing, the sample gas inlet and the zero gas inlet are communicated with the first cavity, the dilution gas outlet is communicated with the second cavity, and the first cavity and the second cavity are communicated through the thin tube section.
Specifically, the diluter dilutes the concentration of the sample gas through mixing the zero gas and the sample gas, the thin pipe section between the first cavity and the second cavity can change the air flow speed so that the zero gas and the sample gas enter the second cavity after being fully mixed, and the second cavity is connected with the mercury analyzer to send the diluted sample gas into the mercury analyzer. A pressure acquisition tube is connected with the first cavity to relieve constipation for measuring the pressure of the first cavity.
In some embodiments, the pressure acquisition tube is in communication with a vacuum gauge.
Specifically, a vacuum gauge is provided for measuring the pressure of the pressure acquisition tube.
In some embodiments, the inertial sampling device further comprises a purifier in communication with the dilute gas phase via a conduit, the purifier being connected to the air compressor.
Specifically, the purifier can provide purified air to form zero gas and dilute the sample gas.
In some embodiments, a dilution ratio adjustment valve is provided on the line between the purifier and the diluter.
Specifically, the regulating valve is arranged between the purifier and the diluter, and the opening of the valve is changed to change the zero air flow entering the diluter, so that the sample gas can be diluted in different concentrations.
According to the mercury monitoring system provided by the embodiment of the application, the mercury monitoring system comprises an inertial sampling device, a first pipeline, a second pipeline and a mercury analyzer, wherein the first pipeline and the second pipeline are connected in parallel, the inertial sampling device is communicated with the mercury analyzer through the first pipeline and the second pipeline, the first pipeline is a bivalent mercury reduction section, the second pipeline is a bivalent mercury adsorption section, the first pipeline is provided with a reducer, and the second pipeline is provided with an absorber. The reducing agent in the reducer reduces the bivalent mercury into the elemental mercury, the adsorbent in the absorber adsorbs the bivalent mercury, the first pipeline and the second pipeline effectively separate the elemental mercury and the bivalent mercury in the flue gas, and the monitoring of the bivalent mercury and the elemental mercury is realized by switching the first pipeline and the second pipeline. The system can respectively measure the gaseous bivalent mercury and the gaseous elemental mercury through the switching pipeline so as to meet the measurement requirements of different scenes.
The technical advantages of the inertial sampling device according to the embodiment of the present application are the same as those of the inertial sampling device described above, and will not be described here again.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those skilled in the art without departing from the scope of the application.

Claims (10)

1. An inertial sampling device, comprising:
the sampler is a U-shaped sampler, a first end of the sampler is a sample gas inlet, a second end of the sampler is a sample gas outlet, two ends of the sampler are both positioned in a discharge source, a closing-in section is arranged on the first end, a sample gas pipe is arranged at one end, far away from the first end, of the closing-in section, and a drainage device is arranged at the second end;
the diluter is communicated with the sample air pipe through a pipeline;
the air compressor is communicated with the drainage device through a pipeline.
2. The inertial sampling device according to claim 1, further comprising a frit layer positioned between the sample gas tube and the constriction section.
3. The inertial sampling device according to claim 2, wherein the air compressor is in communication with the sample air tube via a conduit, and a blowback valve is disposed on the conduit between the air compressor and the sample air tube.
4. An inertial sampling device according to claim 3, wherein a bleed air valve is provided on the line between the air compressor and the bleed air guide.
5. The inertial sampling device according to claim 1, wherein the flow diverter comprises a first housing, a flow diverter, a flue gas tube and a mixing chamber, the flue gas tube and the flow diverter being located within the housing, the plurality of flow diverter being evenly distributed around the flue gas tube, the outlets of the flue gas tube and the flow diverter being in communication with the mixing chamber, the mixing chamber being in communication with the outlet of the housing.
6. The inertial sampling device according to claim 1, wherein the diluter comprises a second housing, a pressure collecting tube and a tubule segment, wherein the second housing is provided with a sample gas inlet, a zero gas inlet and a dilution gas outlet, the second housing is provided with a first cavity and a second cavity, the sample gas inlet and the zero gas inlet are communicated with the first cavity, the dilution gas outlet is communicated with the second cavity, and the first cavity and the second cavity are communicated through the tubule segment.
7. The inertial sampling device according to claim 6, wherein the pressure acquisition tube is in communication with a vacuum gauge.
8. The inertial sampling device according to claim 6, further comprising a purifier in communication with the diluter via a conduit, the purifier being coupled to the air compressor.
9. The inertial sampling device according to claim 8, wherein a dilution ratio adjustment valve is disposed on the line between the purifier and the diluter.
10. The mercury monitoring system is characterized by comprising an inertial sampling device, a first pipeline, a second pipeline and a mercury analyzer, wherein the first pipeline and the second pipeline are connected in parallel, the inertial sampling device is communicated with the mercury analyzer through the first pipeline and the second pipeline, the first pipeline is a bivalent mercury reduction section, the second pipeline is a bivalent mercury adsorption section, the first pipeline is provided with a reducer, the second pipeline is provided with an absorber, and the inertial sampling device is an inertial sampling device according to any one of claims 1 to 9.
CN202310595571.3A 2023-05-24 2023-05-24 Inertial sampling device and mercury monitoring system Pending CN116678689A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204202942U (en) * 2014-11-24 2015-03-11 国电环境保护研究院 Anti-high dirt interference type gas mercury sampling system
CN206523334U (en) * 2017-03-07 2017-09-26 上海何如自控技术有限公司 A kind of block-resistant type dilution sampling device
CN107366906A (en) * 2017-07-17 2017-11-21 清华大学 The multipaths Horizontal CFB Boiler and operation method of a kind of low mercury emissions
CN213842778U (en) * 2020-12-21 2021-07-30 天津市德安圣保安全卫生评价监测有限公司 Smoke dust sampling device and fixing device thereof
CN215415056U (en) * 2021-06-18 2022-01-04 中南大学 Flue gas heavy metal monitoring system
CN115932178A (en) * 2022-12-05 2023-04-07 华能重庆珞璜发电有限责任公司 Fixed source flue gas heat tracing direct mercury pumping on-line continuous monitoring system and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204202942U (en) * 2014-11-24 2015-03-11 国电环境保护研究院 Anti-high dirt interference type gas mercury sampling system
CN206523334U (en) * 2017-03-07 2017-09-26 上海何如自控技术有限公司 A kind of block-resistant type dilution sampling device
CN107366906A (en) * 2017-07-17 2017-11-21 清华大学 The multipaths Horizontal CFB Boiler and operation method of a kind of low mercury emissions
CN213842778U (en) * 2020-12-21 2021-07-30 天津市德安圣保安全卫生评价监测有限公司 Smoke dust sampling device and fixing device thereof
CN215415056U (en) * 2021-06-18 2022-01-04 中南大学 Flue gas heavy metal monitoring system
CN115932178A (en) * 2022-12-05 2023-04-07 华能重庆珞璜发电有限责任公司 Fixed source flue gas heat tracing direct mercury pumping on-line continuous monitoring system and method

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