CN113155812A - Mercury detection and analysis device - Google Patents
Mercury detection and analysis device Download PDFInfo
- Publication number
- CN113155812A CN113155812A CN202110272848.XA CN202110272848A CN113155812A CN 113155812 A CN113155812 A CN 113155812A CN 202110272848 A CN202110272848 A CN 202110272848A CN 113155812 A CN113155812 A CN 113155812A
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- mercury
- analysis device
- electromagnetic valve
- mercury detection
- heating device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
Abstract
The invention provides a mercury detection analysis device, which comprises a reaction device and a test device; the reaction device comprises a gas interface, an electromagnetic valve, a drying rack, a heating device, an absorption pool, an air pump, a flowmeter and a reduction bottle; the gas interface is connected with the electromagnetic valve; the electromagnetic valve is connected with the drying rack; the drying rack is connected with the heating device; the heating device is connected with the absorption tank; the absorption tank is connected with the air pump; the flowmeter is connected with the air pump; the testing device comprises a color filter, a photosensitive component, an amplifier and an external display device; the device can accurately measure the trace mercury in coal, natural water, food, soil and biological samples, and is particularly suitable for environmental monitoring, food sanitation, quality supervision and inspection and the like.
Description
Technical Field
The invention relates to the field of chemical instruments, in particular to a mercury detection analysis device.
Background
The sources of mercury pollution are mainly divided into natural sources and artificial sources. 80% of artificial sources are emitted to the atmosphere in the form of elemental mercury vapor and mainly come from ways such as fuel combustion, mining, smelting, waste incineration and the like; in addition, 15 percent of the water enters the soil through ways of fertilization, pesticides, domestic wastes and the like, and 5 percent of the water enters the water body in the form of industrial wastewater. The mercury has obvious biological enrichment effect. Part of mercury in the soil is absorbed by plants, and the enrichment degree of the mercury increases with the increase of the soil pollution degree. The ease with which different forms of mercury compounds are taken up by plants is related to the solubility of the compounds and is generally: methyl mercury chloride (CH3HgCl) > ethyl mercury chloride (C2H5HgCl) > mercuric chloride (HgCl2) > mercuric oxide (HgO) > mercuric sulfide (HgS); the ability of plants to absorb mercury is roughly that of conifers > deciduous plants, rice > corn > sorghum > wheat, leafy vegetables > root vegetables. Methyl mercury ingested by aquatic organisms can accumulate in the body and be continuously enriched by the food chain. The concentration of methyl mercury in fish in mercury-polluted water body can be up to ten thousand times higher than that of water, so that the fish is endangered and the human body is endangered through a food chain. Therefore, it is necessary to develop a mercury measuring analysis device.
Disclosure of Invention
The invention aims to solve the problems and provides a mercury detection analysis device which comprises a reaction device and a test device, can accurately detect trace mercury in coal, natural water, food, soil and biological samples, and is particularly suitable for environment monitoring, food sanitation, quality supervision and inspection and the like.
In order to achieve the purpose, the invention adopts the following technical scheme.
A mercury detection analysis device comprises a reaction device and a test device; the reaction device comprises a gas interface, an electromagnetic valve, a drying rack, a heating device, an absorption pool, an air pump, a flowmeter and a reduction bottle; the gas interface is connected with the electromagnetic valve; the electromagnetic valve is connected with the drying rack; the drying rack is connected with the heating device; the heating device is connected with the absorption tank; the absorption tank is connected with the air pump and the reduction bottle; the flowmeter is connected with the air pump; the testing device comprises a color filter, a photosensitive component, an amplifier and an external display device; the color filter is arranged close to the absorption cell, the photosensitive component is arranged close to the color filter and far away from the absorption cell, and the photosensitive component is connected with the amplifier; the amplifier is connected with the external display device.
Further, the gas interface comprises a test interface and a calibration interface; and active carbon is arranged between the calibration interface and the electromagnetic valve.
Furthermore, the electromagnetic valve is a three-way electromagnetic valve.
Further, the flow meter is set to 0.5-0.7 liters per minute.
Further, survey mercury analytical equipment still includes mercury permeation tube, mercury permeation tube includes body, non-permeability stopcock and soft stopper.
Further, the non-permeable pipe plug is fixedly connected with the pipe body.
Further, the soft plug is in transition fit with the pipe body.
Further, the heating device is a gold film furnace.
Further, the heating device is a water bath kettle.
Further, a U-shaped pipe is arranged in the heating device.
The mercury detection analysis device has the advantages that:
by adopting the dual interfaces of the test interface and the calibration interface, the test accuracy can be optimized, and the test error is reduced; by selecting different heating devices and permeation tubes, the inspection device can adapt to the inspection of objects in more various rows; can accurately measure trace mercury in coal, natural water, food, soil and biological samples, and is particularly suitable for environmental monitoring, food sanitation, quality supervision and inspection and the like.
Drawings
Fig. 1 is a schematic diagram provided by an embodiment of the present invention.
The reference numerals in the figures are respectively:
1. calibrating the interface; 2. a test interface; 3. an electromagnetic valve; 4. a drying rack; 5. a heating device; 6. an absorption tank; 7. an air pump; 8. a flow meter; 9. a reducing bottle; 10. a color filter; 11. a photosensitive element; 12. an amplifier; 13. an external display device; 14. activated carbon.
Detailed Description
The following provides a detailed embodiment of a mercury measurement analysis device according to the present invention with reference to the accompanying drawings, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All similar structures and similar variations thereof adopting the invention shall fall within the scope of the invention. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
See fig. 1. A mercury detection analysis device comprises a reaction device and a test device; the reaction device comprises a gas interface, an electromagnetic valve 3, a drying rack 4, a heating device 5, an absorption pool 6, an air pump 7, a flowmeter 8 and a reduction bottle 9; the gas interface is connected with the electromagnetic valve 3; the electromagnetic valve 3 is connected with the drying rack 4; the drying rack 4 is connected with the heating device 5; the heating device 5 is connected with the absorption tank 6; the absorption tank 6 is connected with the air pump 7 and the reduction bottle 9; the flowmeter 8 is connected with the air pump 7; the testing device comprises a color filter 10, a photosensitive component 11, an amplifier 12 and an external display device 13; the color filter 10 is arranged close to the absorption cell 6, the photosensitive component 11 is arranged close to the color filter 10 and far away from the absorption cell 6, and the photosensitive component 11 is connected with the amplifier 12; the amplifier 12 is connected to the external display device 13. A drying agent is arranged in the drying rack 4.
The mercury detection analysis device needs to be used optimally at room temperature of 10-30 ℃, the environmental humidity is less than 80%, and the device needs to be far away from a strong electromagnetic field and a vibration source. Alternating current of 220V is used. The gas interface comprises a test interface 2 and a calibration interface 1; and an active carbon 14 is arranged between the calibration interface 1 and the electromagnetic valve 3. Air is introduced into the calibration interface 1, and nitrogen or argon can also be introduced into the calibration interface 1 in order to improve the test accuracy. The external display device 13 is typically a computer. The electromagnetic valve 3 is a three-way electromagnetic valve 3. The flow meter 8 is set to 0.5-0.7 liters per minute. In a calibration state, a channel of the electromagnetic valve 3 opens a passage between the calibration interface 1 and the drying rack 4, outside air flows through the activated carbon 14, mercury atoms are enriched by the activated carbon 14, and a blank value is measured after the residual mercury-free gas flows to the absorption cell 6. In a measuring state, the channel of the electromagnetic valve 3 opens a passage between the testing interface 2 and the drying rack 4, the sample gas passes through the drying rack 4, and the result of the sample gas is measured by the absorption cell 6. The heating device 5 is a gold film furnace, and the gold film furnace is used for heating sample gas.
The mercury detection analysis device further comprises a mercury permeation tube, and the mercury permeation tube comprises a tube body, an impermeable tube plug and a soft plug. The non-permeable pipe plug is fixedly connected with the pipe body. The soft plug is in transition fit with the pipe body. The heating device 5 is a water bath kettle, and a U-shaped pipe is arranged in the heating device 5. Mercury permeation tubes can also be used for calibration. The air pump 7 is connected with the U-shaped pipe through the flowmeter 8, the calibrated mercury permeation pipe is placed at one end, far away from the air pump 7, of the U-shaped pipe, the U-shaped pipe is placed in the water bath pot to be heated and measure the temperature, and then the relevant data can be measured on the external display device 13 of the testing device to be calibrated by combining the permeability of the mercury permeation pipe. When liquid is measured, a reaction bottle needs to be arranged, the air outlet of the reaction bottle is connected with the test interface 2, during measurement, 5 ml of sample and 1 ml of stannous chloride are added into the reaction bottle, then measurement is carried out, and measured data can be displayed on the external display device 13. When the data fluctuation exceeds 5% in the test process, the gas detection state needs to be returned again, and the mercury detection analysis device needs to be calibrated.
By adopting the dual interfaces of the test interface 2 and the calibration interface 1, the test accuracy can be optimized, and the test error is reduced; by selecting different heating devices 5 and permeation tubes, the inspection of objects in more various rows can be adapted; can accurately measure trace mercury in coal, natural water, food, soil and biological samples, and is particularly suitable for environmental monitoring, food sanitation, quality supervision and inspection and the like.
Claims (10)
1. The mercury detection analysis device is characterized by comprising a reaction device and a test device; the reaction device comprises a gas interface, an electromagnetic valve, a drying rack, a heating device, an absorption pool, an air pump, a flowmeter and a reduction bottle; the gas interface is connected with the electromagnetic valve; the electromagnetic valve is connected with the drying rack; the drying rack is connected with the heating device; the heating device is connected with the absorption tank; the absorption tank is connected with the air pump and the reduction bottle; the flowmeter is connected with the air pump; the testing device comprises a color filter, a photosensitive component, an amplifier and an external display device; the color filter is arranged close to the absorption cell, the photosensitive component is arranged close to the color filter and far away from the absorption cell, and the photosensitive component is connected with the amplifier; the amplifier is connected with the external display device.
2. The mercury detection analysis device of claim 1, wherein the gas interface comprises a test interface and a calibration interface; and active carbon is arranged between the calibration interface and the electromagnetic valve.
3. The mercury detection and analysis device of claim 1, wherein the solenoid valve is a three-way solenoid valve.
4. The mercury detection and analysis device of claim 1, wherein the flow meter is configured to be 0.5-0.7 liters per minute.
5. The mercury analysis device of claim 1, further comprising a mercury permeable tube comprising a tube body, an impermeable plug, and a soft plug.
6. The mercury detection and analysis device of claim 5, wherein the impermeable plug is fixedly attached to the tube body.
7. The mercury detection and analysis device of claim 5, wherein the soft plug is transition fitted to the tube.
8. The mercury detection and analysis device of claim 1, wherein the heating device is a gold film furnace.
9. The mercury detection and analysis device of claim 1, wherein the heating device is a water bath.
10. The mercury detection and analysis device of claim 9, wherein a U-tube is disposed in the heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110272848.XA CN113155812A (en) | 2021-03-13 | 2021-03-13 | Mercury detection and analysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110272848.XA CN113155812A (en) | 2021-03-13 | 2021-03-13 | Mercury detection and analysis device |
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| CN113155812A true CN113155812A (en) | 2021-07-23 |
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| CN202110272848.XA Pending CN113155812A (en) | 2021-03-13 | 2021-03-13 | Mercury detection and analysis device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1346081A (en) * | 1971-10-27 | 1974-02-06 | Shandon Southern Instr Ltd | Method and apparatus for detecting mercury vapour in a gas |
| EP0927881A1 (en) * | 1998-01-02 | 1999-07-07 | Carrare (Sté à responsabilité limitée) | Analyzer for mercury |
| CN101482506A (en) * | 2008-01-10 | 2009-07-15 | 江苏江分电分析仪器有限公司 | Mercury content measuring method and device |
| CN201765146U (en) * | 2010-06-24 | 2011-03-16 | 西北有色地质研究院 | Mercury enrichment device of mercury detector |
| CN102445442A (en) * | 2010-10-15 | 2012-05-09 | 西北有色地质研究院 | Intelligent general type mercury measuring device and detection method thereof |
| CN104769417A (en) * | 2012-09-28 | 2015-07-08 | 布鲁克斯·兰德公司 | Mercury monitoring systems and methods |
| CN108020601A (en) * | 2017-11-30 | 2018-05-11 | 宁夏大学 | A kind of device and method for being used to measure coal pyrolysis gas simple substance mercury content |
| CN209215039U (en) * | 2018-11-15 | 2019-08-06 | 苏州市环境监测中心 | A kind of continuous Elemental Mercury gas source |
-
2021
- 2021-03-13 CN CN202110272848.XA patent/CN113155812A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1346081A (en) * | 1971-10-27 | 1974-02-06 | Shandon Southern Instr Ltd | Method and apparatus for detecting mercury vapour in a gas |
| EP0927881A1 (en) * | 1998-01-02 | 1999-07-07 | Carrare (Sté à responsabilité limitée) | Analyzer for mercury |
| CN101482506A (en) * | 2008-01-10 | 2009-07-15 | 江苏江分电分析仪器有限公司 | Mercury content measuring method and device |
| CN201765146U (en) * | 2010-06-24 | 2011-03-16 | 西北有色地质研究院 | Mercury enrichment device of mercury detector |
| CN102445442A (en) * | 2010-10-15 | 2012-05-09 | 西北有色地质研究院 | Intelligent general type mercury measuring device and detection method thereof |
| CN104769417A (en) * | 2012-09-28 | 2015-07-08 | 布鲁克斯·兰德公司 | Mercury monitoring systems and methods |
| CN108020601A (en) * | 2017-11-30 | 2018-05-11 | 宁夏大学 | A kind of device and method for being used to measure coal pyrolysis gas simple substance mercury content |
| CN209215039U (en) * | 2018-11-15 | 2019-08-06 | 苏州市环境监测中心 | A kind of continuous Elemental Mercury gas source |
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