CN102749421A - Mercury standard gas generating device - Google Patents
Mercury standard gas generating device Download PDFInfo
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- CN102749421A CN102749421A CN2012102463422A CN201210246342A CN102749421A CN 102749421 A CN102749421 A CN 102749421A CN 2012102463422 A CN2012102463422 A CN 2012102463422A CN 201210246342 A CN201210246342 A CN 201210246342A CN 102749421 A CN102749421 A CN 102749421A
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Abstract
The invention discloses a mercury standard gas generating device. The mercy standard gas generating device comprises a mixing part, a mercury reagent source, a diluent gas source and a gas storage part, wherein a first inlet of the mixing part is communicated with the diluent gas source, a second inlet of the mixing part is communicated with the mercury reagent source with mercury steam, and an outlet of the mixing part is communicated with the gas storage part. When diluent gas in the diluent gas source and the mercury steam in the mercury reagent source enter the mixing part to be mixed sufficiently, and form mercury standard gas with preset concentration, and prepared mercury standard gas is stored in the gas storage part. Therefore, by the mercury standard gas generating device, the mercury standard gas can be generated, and the accurate calibration of a mercury analysis meter can be realized.
Description
Technical field
The present invention relates to standard gas generation equipment technical field, particularly relate to a kind of mercury standard gas generating means.
Background technology
Improving constantly of Along with people's environmental consciousness, various heavy metal pollution accidents have obtained national great attention, contamination accident be the hazards of destroying ecologic environment, threatening human health; Based on the present environmental pollution present situation of China, develop can field monitoring heavy metal index instrument, dangerous content of beary metal is monitored in real time, it is extremely urgent to promote environment risk identification, assessment, prevention, emergency disposal level.
Mercury is commonly called as mercury, is a kind of argenteous liquid metal, and evaporation is promptly arranged in the normal temperature, and evaporating into airborne mercury can cause than major injury human body, and mercury pollution belongs to one of a kind of comparatively common heavy metal pollution; Therefore, measure airborne mercury content, avoid seeming of mercury pollution accident particularly important.
Mercury analyzer in the mercury content measuring system needs mercury standard gas to realize demarcating, and therefore, how to produce simple substance mercury standard gas, realizes the accurate demarcation of mercury analyzer, just becomes the technical matters that those skilled in the art need solution badly.
Summary of the invention
The purpose of this invention is to provide a kind of mercury standard gas generating means, it can produce simple substance mercury standard gas, realizes the accurate demarcation of mercury analyzer.
Mercury standard gas generating means provided by the present invention comprises hydrid component, and first import of said hydrid component is communicated with the carrier gas source of the gas, its second import with in have the mercury reagent source of mercury vapour to be communicated with, the outlet of said hydrid component and gas storage members.
Preferably, also comprise the carrier gas source of the gas, said mercury reagent source is communicated with said carrier gas source of the gas through its air intake opening.
Preferably, the carrier gas in the said carrier gas source of the gas is a nitrogen.
Preferably, also comprise first mass flow controller that is arranged between said carrier gas source of the gas and the said mercury reagent source, the carrier gas in the said carrier gas source of the gas is imported the flow in said mercury reagent source through said first mass flow controller control.
Preferably, be provided with second mass flow controller between said carrier gas source of the gas and the said hydrid component, the carrier gas in the said carrier gas source of the gas is imported the flow of said hydrid component through said second mass flow controller control.
Preferably, the carrier gas in the said carrier gas source of the gas is a nitrogen.
Preferably, said mercury reagent source is in the temperature constant state of predetermined temperature.
Preferably, the temperature in said mercury reagent source is by the temperature conditioning unit control of said mercury standard gas generating means.
Preferably, said temperature conditioning unit is by the main control unit control of said mercury standard gas generating means.
Preferably, also comprise the display setting device of controlling by said main control unit.
Mercury standard gas generating means provided by the present invention comprises hydrid component, mercury reagent source, carrier gas source of the gas and gas storage parts; Wherein, First import of hydrid component is communicated with the carrier gas source of the gas; Its second import with in have the mercury reagent source of mercury vapour to be communicated with, the outlet of hydrid component and gas storage members.After the mercury vapour in carrier gas in the carrier gas source of the gas and the mercury reagent source got into hydrid component, carrier gas fully mixed with mercury vapour and forms the mercury standard gas with predetermined concentration, and the mercury standard gas for preparing is stored in the gas storage parts.Like this, can produce mercury standard gas, realize the accurate demarcation of mercury analyzer through mercury standard gas generating means.
In a kind of embodiment, mercury standard gas generating means provided by the present invention also comprises the carrier gas source of the gas, and the mercury reagent source is communicated with the carrier gas source of the gas through its air intake opening; Carrier gas in the carrier gas source of the gas is with very little flow input mercury reagent source; Mix with the mercury vapour in it; All the time be in state of saturation so that guarantee the mercury vapour in the mercury reagent source, thereby reach mobile equilibrium, guarantee that output ground mercury vapour is state of saturation in the mercury reagent source.
In another kind of embodiment; Also comprise first mass flow controller and second mass flow controller; Wherein, First mass flow controller is arranged between carrier gas source of the gas and the mercury reagent source, and the flow in the carrier gas input mercury reagent source in the carrier gas source of the gas is through this first mass flow controller control; Second mass flow controller is arranged between carrier gas source of the gas and the hydrid component, and the flow of the carrier gas input hydrid component in the carrier gas source of the gas is through this second mass flow controller control; Like this, can adjust the flow of importing carrier gas and carrier gas according to actual needs, realize the dilution preparation of mercury standard gas through two mass flow controllers.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of mercury standard gas generating means provided by the present invention.
Embodiment
Core of the present invention provides a kind of mercury standard gas generating means, and it can produce simple substance mercury standard gas, realizes the accurate demarcation of mercury analyzer.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of mercury standard gas generating means provided by the present invention.
In a kind of embodiment; Mercury standard gas generating means provided by the present invention comprises hydrid component 1, mercury reagent source 3, carrier gas source of the gas 2 and gas storage parts 4, and wherein, first import of hydrid component 1 is communicated with carrier gas source of the gas 2; Its second import with in have the mercury reagent source 3 of mercury vapour to be communicated with; Constant a certain temperature in the mercury reagent source 3 guarantees that the mercuryvapour of interior reagent top is in state of saturation under this temperature, and the outlet of hydrid component 1 is communicated with gas storage parts 4.After the mercury vapour in carrier gas in the carrier gas source of the gas 2 and the mercury reagent source 3 got into hydrid component 1, carrier gas fully mixed with mercury vapour and forms the mercury standard gas with predetermined concentration, and the mercury standard gas for preparing is stored in the gas storage parts 4; Like this, can produce mercury standard gas, realize the accurate demarcation of mercury analyzer through mercury standard gas generating means.
Can be provided with second mass flow controller 7 between carrier gas source of the gas 2 and the hydrid component 1; Carrier gas in the carrier gas source of the gas 2 is imported the flow of said hydrid component 1 through 7 controls of said second mass flow controller, satisfies predetermined requirement so that the control carrier gas gets into the flow of hydrid component 1.
Carrier gas in the above-mentioned carrier gas source of the gas 2 is a nitrogen, also can be conventional other inert gases that use in this area.
Mercury reagent source 3 is in the temperature constant state of predetermined temperature, is in the state of steam all the time so that guarantee its inner mercury reagent.
The temperature in mercury reagent source 3 can be by temperature conditioning unit 8 controls of mercury standard gas generating means; Particularly, above-mentioned temperature conditioning unit 8 can comprise temperature sensor and temperature control unit, wherein; Temperature sensor can be arranged on the appropriate location in mercury reagent source 3; Be used for detecting the temperature in the mercury reagent source 3 constantly, and detected temperature is transferred to temperature control unit, temperature control unit is compared detected temperature with the demarcation temperature; When detected temperature when demarcating temperature, improve the temperature in mercury reagent source 3.
Above-mentioned temperature conditioning unit 8 also is not limited to above-mentioned concrete form, also can only comprise the thermometer that detects mercury reagent source 3, artificially controls the temperature in mercury reagent source 3 through the thermometer number of degrees.
The display setting device 10 of above-mentioned main control unit 9 controls is so that intuitively reflect the working condition of each working cell.
Mercury standard gas generating means provided by the present invention also comprises carrier gas source of the gas 5, and mercury reagent source 3 is communicated with carrier gas source of the gas 5 through its air intake opening; Carrier gas in the carrier gas source of the gas 5 is with very little flow input mercury reagent source 3; Mix with the mercury vapour in it; All the time be in state of saturation so that guarantee the mercury vapour in the mercury reagent source 3, thereby reach mobile equilibrium, guarantee that output ground mercury vapour is state of saturation in the mercury reagent source 3.
Carrier gas in the above-mentioned carrier gas source of the gas 5 is a nitrogen, also can be conventional other inert gases that use in this area.
Between carrier gas source of the gas 5 and mercury reagent source 3, can be provided with first mass flow controller 6, the carrier gas in the carrier gas source of the gas 5 is imported the flow in said mercury reagent source 3 through 6 controls of said first mass flow controller; Like this, can adjust the flow of importing carrier gas and carrier gas according to actual needs, realize the dilution preparation of mercury standard gas through two mass flow controllers.
More than mercury standard gas generating means provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. mercury standard gas generating means; It is characterized in that; Comprise hydrid component (1); First import of said hydrid component (1) is communicated with carrier gas source of the gas (2), its second import with in have the mercury reagent source (3) of mercury vapour to be communicated with, the outlet of said hydrid component (1) is communicated with gas storage parts (4).
2. mercury standard gas generating means according to claim 1 is characterized in that, also comprises carrier gas source of the gas (5), and said mercury reagent source (3) is communicated with said carrier gas source of the gas (5) through its air intake opening.
3. mercury standard gas generating means according to claim 2 is characterized in that, the carrier gas in the said carrier gas source of the gas (5) is a nitrogen.
4. mercury standard gas generating means according to claim 2; It is characterized in that; Also comprise first mass flow controller (6) that is arranged between said carrier gas source of the gas (5) and the said mercury reagent source (3), the carrier gas in the said carrier gas source of the gas (5) is imported the flow in said mercury reagent source (3) through said first mass flow controller (6) control.
5. mercury standard gas generating means according to claim 1; It is characterized in that; Be provided with second mass flow controller (7) between said carrier gas source of the gas (2) and the said hydrid component (1), the carrier gas in the said carrier gas source of the gas (2) is imported the flow of said hydrid component (1) through said second mass flow controller (7) control.
6. mercury standard gas generating means according to claim 5 is characterized in that, the carrier gas in the said carrier gas source of the gas (2) is a nitrogen.
7. according to each described mercury standard gas generating means of claim 1 to 6, it is characterized in that said mercury reagent source (3) is in the temperature constant state of predetermined temperature.
8. mercury standard gas generating means according to claim 7 is characterized in that, the temperature in said mercury reagent source (3) is by temperature conditioning unit (8) control of said mercury standard gas generating means.
9. mercury standard gas generating means according to claim 8 is characterized in that, said temperature conditioning unit (8) is by main control unit (9) control of said mercury standard gas generating means.
10. mercury standard gas generating means according to claim 9 is characterized in that, also comprises the display setting device (10) by said main control unit (9) control.
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| CN201210246342.2A CN102749421B (en) | 2012-07-16 | 2012-07-16 | Mercury standard gas generating device |
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| CN201210246342.2A CN102749421B (en) | 2012-07-16 | 2012-07-16 | Mercury standard gas generating device |
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| CN102749421A true CN102749421A (en) | 2012-10-24 |
| CN102749421B CN102749421B (en) | 2015-01-21 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604892A (en) * | 2013-11-28 | 2014-02-26 | 北京雪迪龙科技股份有限公司 | Mercury monitoring apparatus and mercury monitoring method |
| CN103721640A (en) * | 2014-01-14 | 2014-04-16 | 华北电力大学（保定） | Mercury standard gas generator based on saturated vapor pressure method |
| CN103728421A (en) * | 2014-01-07 | 2014-04-16 | 北京雪迪龙科技股份有限公司 | Element mercury standard gas preparation method and element mercury standard gas preparation system |
| CN105004676A (en) * | 2015-06-05 | 2015-10-28 | 福建省计量科学研究院 | Method for measuring concentration of mercury ions in smoke on basis of ultrasonic atomization method |
| CN105886796A (en) * | 2016-03-15 | 2016-08-24 | 中国华电集团科学技术研究总院有限公司 | Device for producing mercury standard gas and divalent mercury standard gas on basis of saturation principle |
| CN106841068A (en) * | 2017-01-23 | 2017-06-13 | 北京雪迪龙科技股份有限公司 | Prepare the body method of mercury vapour containing extra fine quality and Mercury In The Air monitoring system calibration method |
| CN109613181A (en) * | 2018-11-28 | 2019-04-12 | 中国计量科学研究院 | A kind of trace gaseous mercury standard generating system |
| CN111141885A (en) * | 2019-05-07 | 2020-05-12 | 杭州超钜科技有限公司 | Automatic detection device and detection method for gas mercury detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103604892A (en) * | 2013-11-28 | 2014-02-26 | 北京雪迪龙科技股份有限公司 | Mercury monitoring apparatus and mercury monitoring method |
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| CN103721640A (en) * | 2014-01-14 | 2014-04-16 | 华北电力大学（保定） | Mercury standard gas generator based on saturated vapor pressure method |
| CN105004676A (en) * | 2015-06-05 | 2015-10-28 | 福建省计量科学研究院 | Method for measuring concentration of mercury ions in smoke on basis of ultrasonic atomization method |
| CN105886796A (en) * | 2016-03-15 | 2016-08-24 | 中国华电集团科学技术研究总院有限公司 | Device for producing mercury standard gas and divalent mercury standard gas on basis of saturation principle |
| CN106841068A (en) * | 2017-01-23 | 2017-06-13 | 北京雪迪龙科技股份有限公司 | Prepare the body method of mercury vapour containing extra fine quality and Mercury In The Air monitoring system calibration method |
| CN109613181A (en) * | 2018-11-28 | 2019-04-12 | 中国计量科学研究院 | A kind of trace gaseous mercury standard generating system |
| CN109613181B (en) * | 2018-11-28 | 2022-03-22 | 中国计量科学研究院 | Trace gaseous mercury standard generation system |
| CN111141885A (en) * | 2019-05-07 | 2020-05-12 | 杭州超钜科技有限公司 | Automatic detection device and detection method for gas mercury detector |
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| CN102749421B (en) | 2015-01-21 |
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