CN102749421B - Mercury standard gas generating device - Google Patents

Mercury standard gas generating device Download PDF

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CN102749421B
CN102749421B CN201210246342.2A CN201210246342A CN102749421B CN 102749421 B CN102749421 B CN 102749421B CN 201210246342 A CN201210246342 A CN 201210246342A CN 102749421 B CN102749421 B CN 102749421B
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mercury
gas
carrier gas
source
generating means
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CN102749421A (en
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韩占恒
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Beijing SDL Technology Co Ltd
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Beijing SDL Technology Co Ltd
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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

Mercury Standard Gases generating means
Technical field
The present invention relates to Standard Gases generation equipment technical field, particularly relate to a kind of mercury Standard Gases generating means.
Background technology
Along with improving constantly of people's environmental consciousness, various heavy metal pollution accident obtains the great attention of country, contamination accident be destroy ecologic environment, threaten the hazards of human health; Based on the Environmental Pollution that China is current, developing can the instrument of field monitoring heavy metal index, monitors in real time dangerous content of beary metal, promotes environment risk identification, assessment, prevention, emergency disposal level are extremely urgent.
Mercury is commonly called as mercury, is a kind of argenteous liquid metal, namely has evaporation in normal temperature, and the mercury evaporated in air can cause comparatively major injury to human body, and mercury pollution belongs to one of a kind of comparatively common heavy metal pollution; Therefore, measure the mercury content in air, avoid seeming of mercury pollution accident particularly important.
Mercury analyzer in mercury content measuring system needs mercury Standard Gases to realize to demarcate, and therefore, how to produce Elemental Mercury Standard Gases, realizes the accurate calibration of mercury analyzer, just become the technical matters that those skilled in the art need solution badly.
Summary of the invention
The object of this invention is to provide a kind of mercury Standard Gases generating means, it can produce Elemental Mercury Standard Gases, realizes the accurate calibration of mercury analyzer.
Mercury Standard Gases generating means provided by the present invention, comprises hydrid component, and the first import of described hydrid component is communicated with carrier gas source of the gas, and its second import has the mercury reagent source of mercury vapour to be communicated with interior, the outlet of described hydrid component and gas storage members.
Preferably, also comprise carrier gas source of the gas, described mercury reagent source is communicated with described carrier gas source of the gas by its air intake opening.
Preferably, the carrier gas in described carrier gas source of the gas is nitrogen.
Preferably, also comprise the first mass flow controller be arranged between described carrier gas source of the gas and described mercury reagent source, the flow that the carrier gas in described carrier gas source of the gas inputs described mercury reagent source is controlled by described first mass flow controller.
Preferably, be provided with the second mass flow controller between described carrier gas source of the gas and described hydrid component, the flow that the carrier gas in described carrier gas source of the gas inputs described hydrid component is controlled by described second mass flow controller.
Preferably, the carrier gas in described carrier gas source of the gas is nitrogen.
Preferably, described mercury reagent source is in the temperature constant state of predetermined temperature.
Preferably, the temperature in described mercury reagent source is controlled by the temperature conditioning unit of described mercury Standard Gases generating means.
Preferably, described temperature conditioning unit is controlled by the main control unit of described mercury Standard Gases generating means.
Preferably, the display setting device controlled by described main control unit is also comprised.
Mercury Standard Gases 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 carrier gas source of the gas, its second import has the mercury reagent source of mercury vapour to be communicated with interior, the outlet of hydrid component and gas storage members.After the mercury vapour in the carrier gas in carrier gas source of the gas and mercury reagent source enters hydrid component, carrier gas and mercury vapour fully mix and form the mercury Standard Gases with predetermined concentration, and the mercury Standard Gases prepared is stored in gas storage parts.Like this, mercury Standard Gases can be produced by mercury Standard Gases generating means, realize the accurate calibration of mercury analyzer.
In a kind of embodiment, mercury Standard Gases generating means provided by the present invention also comprises carrier gas source of the gas, and mercury reagent source is communicated with carrier gas source of the gas by its air intake opening; Carrier gas in carrier gas source of the gas is with very little flow input mercury reagent source, mix with the mercury vapour in it, to ensure that the mercury vapour in mercury reagent source is in state of saturation all the time, thus to reach mobile equilibrium, ensure that exporting ground mercury vapour in mercury reagent source is state of saturation.
In another kind of embodiment, also comprise the first mass flow controller and the second mass flow controller, wherein, first mass flow controller is arranged between carrier gas source of the gas and mercury reagent source, and the flow in the carrier gas input mercury reagent source in carrier gas source of the gas is controlled by this first mass flow controller; Second mass flow controller is arranged between carrier gas source of the gas and hydrid component, and the flow of the carrier gas input hydrid component in carrier gas source of the gas is controlled by this second mass flow controller; Like this, the flow of input carrier gas and carrier gas can be adjusted according to actual needs by two mass flow controllers, realize the dilution preparation of mercury Standard Gases.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of mercury Standard Gases generating means provided by the present invention.
Embodiment
Core of the present invention is to provide a kind of mercury Standard Gases generating means, and it can produce Elemental Mercury Standard Gases, realizes the accurate calibration of mercury analyzer.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of embodiment of mercury Standard Gases generating means provided by the present invention.
In a kind of embodiment, mercury Standard Gases 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, wherein, first import of hydrid component 1 is communicated with carrier gas source of the gas 2, its second import has the mercury reagent source 3 of mercury vapour to be communicated with interior, constant a certain temperature in mercury reagent source 3, the mercuryvapour ensureing above interior reagent is in state of saturation at this temperature, and the outlet of hydrid component 1 is communicated with gas storage parts 4.After the mercury vapour in the carrier gas in carrier gas source of the gas 2 and mercury reagent source 3 enters hydrid component 1, carrier gas and mercury vapour fully mix and form the mercury Standard Gases with predetermined concentration, and the mercury Standard Gases prepared is stored in gas storage parts 4; Like this, mercury Standard Gases can be produced by mercury Standard Gases generating means, realize the accurate calibration of mercury analyzer.
The second mass flow controller 7 can be provided with between carrier gas source of the gas 2 and hydrid component 1, the flow that carrier gas in carrier gas source of the gas 2 inputs described hydrid component 1 is controlled by described second mass flow controller 7, to control the flow that carrier gas enters hydrid component 1 meeting pre-provisioning request.
Carrier gas in above-mentioned carrier gas source of the gas 2 is nitrogen, also can be conventional other inert gases used in this area.
Mercury reagent source 3 is in the temperature constant state of predetermined temperature, to ensure that the mercury reagent of its inside is in the state of steam all the time.
The temperature in mercury reagent source 3 can be controlled by the temperature conditioning unit 8 of mercury Standard Gases 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, the temperature in mercury reagent source 3 is detected for the moment, and the temperature detected is transferred to temperature control unit, temperature control unit by the temperature that detects compared with demarcation temperature, when the temperature detected is less than demarcation temperature, improve the temperature in mercury reagent source 3.
Above-mentioned temperature conditioning unit 8 is also not limited to above-mentioned concrete form, also only can comprise the thermometer detecting mercury reagent source 3, by the temperature in thermometer number of degrees manual control mercury reagent source 3.
Temperature conditioning unit 8 can be controlled by the main control unit 9 of mercury Standard Gases generating means, so that the control module structure of simplification device; Apparently, be also not limited to and control temperature conditioning unit 8 by main control unit 9, temperature conditioning unit 8 also can by independently controller control.
The display setting device 10 that above-mentioned main control unit 9 controls, so that the working condition of each working cell of reflection directly perceived.
Mercury Standard Gases 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 by its air intake opening; Carrier gas in carrier gas source of the gas 5 is with very little flow input mercury reagent source 3, mix with the mercury vapour in it, to ensure that the mercury vapour in mercury reagent source 3 is in state of saturation all the time, thus to reach mobile equilibrium, ensure that exporting ground mercury vapour in mercury reagent source 3 is state of saturation.
Carrier gas in above-mentioned carrier gas source of the gas 5 is nitrogen, also can be conventional other inert gases used in this area.
Can be provided with the first mass flow controller 6 between carrier gas source of the gas 5 and mercury reagent source 3, the flow that the carrier gas in carrier gas source of the gas 5 inputs described mercury reagent source 3 is controlled by described first mass flow controller 6; Like this, the flow of input carrier gas and carrier gas can be adjusted according to actual needs by two mass flow controllers, realize the dilution preparation of mercury Standard Gases.
Above mercury Standard Gases generating means provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.

Claims (9)

1. a mercury Standard Gases generating means, it is characterized in that, comprise hydrid component (1) and carrier gas source of the gas (5), first import of described hydrid component (1) is communicated with carrier gas source of the gas (2), its second import has the mercury reagent source (3) of mercury vapour to be communicated with interior, the outlet of described hydrid component (1) is communicated with gas storage parts (4), and described mercury reagent source (3) is communicated with described carrier gas source of the gas (5) by its air intake opening.
2. mercury Standard Gases generating means according to claim 1, is characterized in that, the carrier gas in described carrier gas source of the gas (5) is nitrogen.
3. mercury Standard Gases generating means according to claim 1, it is characterized in that, also comprise the first mass flow controller (6) be arranged between described carrier gas source of the gas (5) and described mercury reagent source (3), the flow that the carrier gas in described carrier gas source of the gas (5) inputs described mercury reagent source (3) is controlled by described first mass flow controller (6).
4. mercury Standard Gases generating means according to claim 1, it is characterized in that, be provided with the second mass flow controller (7) between described carrier gas source of the gas (2) and described hydrid component (1), the flow that the carrier gas in described carrier gas source of the gas (2) inputs described hydrid component (1) is controlled by described second mass flow controller (7).
5. mercury Standard Gases generating means according to claim 4, is characterized in that, the carrier gas in described carrier gas source of the gas (2) is nitrogen.
6. the mercury Standard Gases generating means according to any one of claim 1 to 5, is characterized in that, described mercury reagent source (3) is in the temperature constant state of predetermined temperature.
7. mercury Standard Gases generating means according to claim 6, is characterized in that, the temperature of described mercury reagent source (3) is controlled by the temperature conditioning unit (8) of described mercury Standard Gases generating means.
8. mercury Standard Gases generating means according to claim 7, is characterized in that, described temperature conditioning unit (8) is controlled by the main control unit (9) of described mercury Standard Gases generating means.
9. mercury Standard Gases generating means according to claim 8, is characterized in that, also comprises the display setting device (10) controlled by described main control unit (9).
CN201210246342.2A 2012-07-16 2012-07-16 Mercury standard gas generating device Active CN102749421B (en)

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Publication number Priority date Publication date Assignee Title
CN103604892B (en) * 2013-11-28 2015-09-23 北京雪迪龙科技股份有限公司 A kind of mercury monitoring device and mercury monitoring 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
CN103721640B (en) * 2014-01-14 2015-10-21 华北电力大学(保定) A kind of mercury gas generator based on saturated vapor platen press
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
CN105886796B (en) * 2016-03-15 2018-01-19 中国华电集团科学技术研究总院有限公司 A kind of device that mercury and bivalent mercury Standard Gases are produced based on 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
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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CN1888515A (en) * 2006-07-28 2007-01-03 周玉成 Dynamic distributing system for standard gas
CN102323384A (en) * 2011-09-13 2012-01-18 北京雪迪龙科技股份有限公司 Standard gas preparation instrument

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CN1050610A (en) * 1989-09-29 1991-04-10 宁夏石咀山矿务局科研所 Rapid preparation method for standard air and device
CN2499819Y (en) * 2001-09-18 2002-07-10 中国人民解放军总装备部后勤部军事医学研究所 Preparing device for dynamic standard gas sample
JP2004109045A (en) * 2002-09-20 2004-04-08 Horiba Ltd Standard gas production device
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