CN105300760A - Generator for preparing elemental mercury standard gas - Google Patents
Generator for preparing elemental mercury standard gas Download PDFInfo
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- CN105300760A CN105300760A CN201510646541.6A CN201510646541A CN105300760A CN 105300760 A CN105300760 A CN 105300760A CN 201510646541 A CN201510646541 A CN 201510646541A CN 105300760 A CN105300760 A CN 105300760A
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- elemental mercury
- standard gases
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Abstract
The invention relates to a generator for preparing elemental mercury standard gas. The generator comprises a U-shaped pipe, a uniform distribution plate, two gas pipe connectors and two sealing devices, wherein the U-shaped pipe is used for holding a mercury penetration pipe and a glass ball; the uniform distribution plate is arranged at the bottom of the U-shaped pipe, is used for partitioning the mercury penetration pipe from the glass ball and is provided with a plurality of evenly distributed through holes; the two gas pipe connectors are respectively positioned at the two ends of the U-shaped pipe and are communicated with the U-shaped pipe; the two sealing devices are used for connecting the two gas pipe connectors and the U-shaped pipe in a sealing manner; each sealing device comprises an end cover, a pressing sleeve, bolts and a gasket; each end cover is connected with the corresponding gas pipe connector and the U-shaped pipe, and is provided with an air passage which can be communicated with the U-shaped pipe and the corresponding gas pipe connector; each pressing sleeve is arranged out of each end cover and the U-shaped pipe in a sleeving manner; the bolts are arranged between each of the end covers and the corresponding pressing sleeve and are used for fastening and connecting the end covers with the U-shaped pipe; each gasket is arranged between each pressing sleeve and the U-shaped pipe. The generator is high in gas tightness, and is safe and reliable; mercury vapor leakage can be effectively avoided; a mercury poisoning accident of personnel is avoided.
Description
Technical field
the present invention is specifically related to a kind of generator producing Elemental Mercury Standard Gases.
Background technology
mercury is as the trace elements in coal, and in coal combustion process, major part can enter air along with flue gas.According to " GlobalMercuryAssessment2013 " that United Nations Environment Programme (UNEP) (UNEP) issues, within 2010, the whole world is about 1960 tons to the mercury of anthropogenic discharge in air, and wherein about 1/3 from China; And in In The Atmosphere Over China mercury emissions, about have 1/3 to be derived from coal-burning power plant.2011, in order to accurately grasp the mercury emissions situation of coal-burning power plant of China, national environmental protection portion started the Mercury In The Air disposal of pollutants monitoring pilot work of 16 coal-burning power plants, the whole nation.By the regulation in existing " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2011), 2015, China formally performed the emission control to coal-burning power plant's mercury and mercuric compounds pollutant.Along with academia and industry member pollute carrying out of related work to smoke mercury emission, how accurately preparing mercury Standard Gases becomes the problem that scholar and slip-stick artist etc. often run into.
at present, mercury osmos tube is usually adopted to produce Elemental Mercury Standard Gases.Mercury osmos tube mercury infiltration rate is at different temperatures different, thus needs corresponding device to load and heats mercury osmos tube.At present; usual employing with the U-tube of end cap as loading and the device of heating mercury osmos tube, but, often can encounter device gas leakage, the unequal problem of temperature in real work; cause the mercury Standard Gases fluctuation of concentration produced comparatively large, even cause the human safety issues such as personnel's mercury poisoning.
Summary of the invention
technical matters to be solved by this invention is to provide a kind of safe and reliable generator producing Elemental Mercury Standard Gases.
for solving above technical matters, the present invention takes following technical scheme:
a kind of generator producing Elemental Mercury Standard Gases, comprise the U-tube for placing mercury osmos tube and glass bead, be arranged on the bottom of described U-tube for described mercury osmos tube and described glass bead being separated and there is the uniform board of equally distributed multiple through hole, described generator also comprises the two ends laying respectively at described U-tube and two gas-tpe fittings be connected with described U-tube, for two packoffs that described two gas-tpe fittings and described U-tube are tightly connected mutually, each described packoff includes and is connected with described U-tube with described gas-tpe fitting respectively and has the end cap of the gas channel that can be connected with described gas-tpe fitting with described U-tube, be set in the clamping sleeve outside described end cap and described U-tube, be arranged on the screw for described end cap and described U-tube being fastened and connected between described end cap and described clamping sleeve, be arranged on the packing ring between described clamping sleeve and described U-tube.
particularly, a side lower part of described U-tube is formed with the bracketing for supporting described mercury osmos tube.
more specifically, described bracketing is circumferentially uniformly distributed by multiple is formed in hemispheric boss.
particularly, described clamping sleeve overlaps assembling by former and later two or left and right two and half and is formed, and described packoff also comprises the outer sleeve for being fixedly connected with by two and half described covers.
more specifically, the material of described outer sleeve is stainless steel.
particularly, the central upper portion of described clamping sleeve is formed with the circular hole passed through for described gas-tpe fitting, lower central is formed with the circular hole passed through for described U-tube, and the top of clamping sleeve is formed and is circumferentially uniformly distributed and the multiple threaded holes connected for described screw.
particularly, described packoff also comprises the stationary fixture for described generator and water tank being fixedly connected.
particularly, described U-tube is coordinated by inclined-plane outward-dipping from bottom to top with described end cap, and the angle of inclination on described inclined-plane is 25 ~ 35 °.
particularly, the material of described U-tube is quartz glass or high-boron-silicon glass.
particularly, the material of described end cap is teflon.
due to the enforcement of above technical scheme, the present invention compared with prior art tool has the following advantages:
1, impermeability of the present invention is good, can effectively avoid mercury vapour to leak, safe and reliable, avoids the generation of personnel's mercury poisoning accident.2, the present invention is connected flexibly with water bath, is convenient to adjustment and changes.3, steadiness of the present invention is strong, can in water bath effective location.
Accompanying drawing explanation
accompanying drawing 1 is structural representation of the present invention;
wherein, 1, gas-tpe fitting; 2, screw; 3, end cap; 4, clamping sleeve; 5, outer sleeve; 6, packing ring; 7, stationary fixture; 8, U-tube; 9, bracketing; 10, uniform board.
Embodiment
as shown in Figure 1, a kind of generator producing Elemental Mercury Standard Gases, it is vertically placed when reality uses.The inferior noun of locality of all around going up in the present invention carries out limiting with the position in accompanying drawing 1.
generator comprises U-tube 8 for placing mercury osmos tube and glass bead, be arranged on the bottom of U-tube 8 for mercury osmos tube and glass bead being separated and having the uniform board 10 of equally distributed multiple through hole, through hole on uniform board 10 is circular aperture, and it can pass through for carrier gas.One side lower part of U-tube 8 is formed with the bracketing 9 for supporting mercury osmos tube, and bracketing 9 to be circumferentially uniformly distributed in hemispheric boss by multiple (being specially 3) and to be formed.The material of U-tube 8 is quartz glass or high-boron-silicon glass.
generator also comprises the two ends laying respectively at U-tube 8 and two gas-tpe fittings 1 be connected with U-tube 8, two packoffs for two gas-tpe fittings 1 and U-tube 8 being tightly connected mutually.The gas-tpe fitting 1 being placed with the side of glass bead being positioned at U-tube 8 is carrier gas inlet, and be positioned at the gas-tpe fitting 1 being placed with the side of mercury osmos tube of U-tube 8 for carrier gas outlet, the material of glass bead is quartz glass ball or high-boron-silicon glass ball.
each packoff include be connected with gas-tpe fitting 1 and U-tube 8 respectively and have the end cap 3 of the gas channel that can be connected with U-tube 8 and gas-tpe fitting 1, the clamping sleeve 4 be set in outside end cap 3 and U-tube 8, be arranged between end cap 3 and clamping sleeve 4 for end cap 3 and U-tube 8 are fastened and connected screw 2, be arranged on packing ring 6 between clamping sleeve 4 and U-tube 8.
particularly, U-tube 8 is coordinated by inclined-plane outward-dipping from bottom to top with end cap 3, and the angle of inclination on inclined-plane is 25 ~ 35 °, is preferably 30 °.Gas channel is formed in the center of end cap 3, and gas-tpe fitting 1 to be plugged in gas channel and to adopt with end cap 3 and is threaded.The material of end cap 3 is teflon.
the central upper portion of clamping sleeve 4 is formed with the circular hole that heating pipe joint 1 passes through, lower central is formed with the circular hole passed through for U-tube 8, the top of clamping sleeve 4 is formed and is circumferentially uniformly distributed and the multiple threaded holes connected for screw 2, under the effect of screw 2 and clamping sleeve 4, end cap 3 and U-tube 8 realize being fastenedly connected.Conveniently install, clamping sleeve 4 is formed by former and later two half cover assemblings, and certainly, clamping sleeve 4 also can overlap assembling by left and right two and half and be formed, and packoff also comprises the outer sleeve 5 for being fixedly connected with by two and half covers.The material of outer sleeve 5 is stainless steel.
packoff also comprises the stationary fixture 7 for generator and water tank being fixedly connected, stationary fixture 7 is made up of back and forth or left and right two halves, front and back two halves are bolted, stationary fixture 7 is formed with two circular holes and the pilot hole for locating on water tank that pass through for U-tube 8, and the material of stationary fixture 7 is aluminium alloy.
the present invention in use, is sidelong into mercury osmos tube (not shown) at bracketing 9 place of U-tube 8, fills quartz glass ball or high-boron-silicon glass ball (not shown) at the opposite side of U-tube 8; The gas-tpe fitting 1 of the side, bracketing 9 place of U-tube 8 is the carrier gas outlet of mercury vapour, and the gas-tpe fitting 1 of the opposite side of U-tube 8 is the carrier gas inlet of mercury vapour.After whole device and water bath have assembled, the water level in water bath should higher than the top of the mercury osmos tube (not shown) of U-tube 8 inside.According to actual needs, by controlling carrier gas flux and water bath temperature, certain density Elemental Mercury Standard Gases can be obtained.
above to invention has been detailed description; its object is to allow the personage being familiar with this art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; the equivalence change that all Spirit Essences according to the present invention are done or modification, all should be encompassed in protection scope of the present invention.
Claims (10)
1. produce the generator of Elemental Mercury Standard Gases for one kind, comprise the U-tube (8) for placing mercury osmos tube and glass bead, the bottom being arranged on described U-tube (8) is used for described mercury osmos tube and described glass bead to separate and has the uniform board (10) of equally distributed multiple through hole, it is characterized in that: described generator also comprises the two ends laying respectively at described U-tube (8) and two gas-tpe fittings (1) be connected with described U-tube (8), for two packoffs that described two gas-tpe fittings (1) and described U-tube (8) are tightly connected mutually, each described packoff includes and is connected with described U-tube (8) with described gas-tpe fitting (1) respectively and has the end cap (3) of the gas channel that can be connected with described gas-tpe fitting (1) with described U-tube (8), be set in described end cap (3) and described U-tube (8) clamping sleeve outward (4), be arranged on the screw (2) for described end cap (3) and described U-tube (8) being fastened and connected between described end cap (3) and described clamping sleeve (4), be arranged on the packing ring (6) between described clamping sleeve (4) and described U-tube (8).
2. the generator producing Elemental Mercury Standard Gases according to claim 1, is characterized in that: a side lower part of described U-tube (8) is formed with the bracketing (9) for supporting described mercury osmos tube.
3. the generator producing Elemental Mercury Standard Gases according to claim 2, is characterized in that: described bracketing (9) is circumferentially uniformly distributed by multiple is formed in hemispheric boss.
4. the generator producing Elemental Mercury Standard Gases according to claim 1, it is characterized in that: described clamping sleeve (4) overlaps assembling by former and later two or left and right two and half and formed, and described packoff also comprises the outer sleeve (5) for being fixedly connected with by two and half described covers.
5. the generator producing Elemental Mercury Standard Gases according to claim 4, is characterized in that: the material of described outer sleeve (5) is stainless steel.
6. the generator producing Elemental Mercury Standard Gases according to claim 1, it is characterized in that: the central upper portion of described clamping sleeve (4) is formed with the circular hole passed through for described gas-tpe fitting (1), lower central is formed with the circular hole passed through for described U-tube (8), and the top of clamping sleeve (4) is formed and is circumferentially uniformly distributed and the multiple threaded holes connected for described screw (2).
7. the generator producing Elemental Mercury Standard Gases according to claim 1, is characterized in that: described packoff also comprises the stationary fixture (7) for described generator and water tank being fixedly connected.
8. the generator producing Elemental Mercury Standard Gases according to claim 1, is characterized in that: described U-tube (8) is coordinated by inclined-plane outward-dipping from bottom to top with described end cap (3), and the angle of inclination on described inclined-plane is 25 ~ 35 °.
9. the generator producing Elemental Mercury Standard Gases according to claim 1, is characterized in that: the material of described U-tube (8) is quartz glass or high-boron-silicon glass.
10. the generator producing Elemental Mercury Standard Gases according to claim 1, is characterized in that: the material of described end cap (3) is teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646541.6A CN105300760B (en) | 2015-10-09 | 2015-10-09 | A kind of generator for producing Elemental Mercury Standard Gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646541.6A CN105300760B (en) | 2015-10-09 | 2015-10-09 | A kind of generator for producing Elemental Mercury Standard Gases |
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| Publication Number | Publication Date |
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| CN105300760A true CN105300760A (en) | 2016-02-03 |
| CN105300760B CN105300760B (en) | 2018-09-25 |
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| CN201510646541.6A Active CN105300760B (en) | 2015-10-09 | 2015-10-09 | A kind of generator for producing Elemental Mercury Standard Gases |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105699146A (en) * | 2016-03-15 | 2016-06-22 | 中国华电集团科学技术研究总院有限公司 | Device for producing mercury and bivalent mercury standard gas based on penetration principle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105300760B (en) | 2018-09-25 |
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