CN104761016A - Extraction device of VOCs from water - Google Patents
Extraction device of VOCs from water Download PDFInfo
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- CN104761016A CN104761016A CN201510110114.6A CN201510110114A CN104761016A CN 104761016 A CN104761016 A CN 104761016A CN 201510110114 A CN201510110114 A CN 201510110114A CN 104761016 A CN104761016 A CN 104761016A
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- vocs
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- end arm
- pipe
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Abstract
The invention relates to an extraction device of VOCs from water which includes an atomization tube of which both the two ends are in an opened structure. The atomization tube is disposed in a cylindrical outer shell. The bottom of the atomization tube is sealedly fixed to the bottom of the cylindrical outer shell through an atomization sheet. The top of the cylindrical outer shell is sealedly connected to an outer wall surface on the top of the atomization tube. The outlet on the top of the atomization tube is connected to an upper end branch tube through an inclined pipeline. The upper end branch tube, the top of a condenser pipe, and the top of an inner tube are formed integratedly, wherein the condenser pipe is disposed in a refrigerating device. The inner tube is arranged in the condenser pipe to form a double-pipe structure. A gap is formed between the bottom of the inner tube and the bottom of the condenser pipe. The bottom of the condenser pipe is communicated with the upper end branch tube. A side branch pipe is arranged on one side wall at the top of the condenser pipe and is connected to the condenser pipe. The extraction device is simple in structure and is low in cost, can effectively separate VOCs form a water sample at a relative high separation efficiency, and can be widely applied in the field of environmental water quality treatment and researching.
Description
Technical field
The present invention relates to a kind of ambient water quality treatment unit, particularly about VOCs extraction element in a kind of water for carrying out pre-treatment to VOCs in environment water.
Background technology
Volatile organic contaminant (Volatile Organic Compounds, VOCs) is that molecular weight, saturated vapor pressure are higher, volatile organic compound at normal temperatures.VOCs in environment water and tap water generally derives from the waste water of chemical enterprise emission, and the volatilization of sewage work is also one and concentrates source, and in addition, the humic acid in water, fulvic acid and algae meta-bolites also can produce some halohydrocarbon after chlorination.Water body VOCs to HUMAN HEALTH and environmental safety very harmful, numerous species has " teratogenesis, carcinogenic, mutagenesis " three cause effect, can cause " feminizing ", or have bad smell, be difficult to natural degradation.And they very easily evaporate in air from environment water, cause the rising of air VOCs concentration.
Have 20 many indexs to be VOCs in China's " water environment quality standard " (GB 3838-2002) and " drinking water sanitary standard " (GB 5749-2006), in 129 kinds of priority pollutants that US Gov Env Protection Agency (EPA) formulates, VOCs also accounts for 31 kinds.All detect the existence of VOCs in the source water in the many cities of China and tap water, be therefore badly in need of carrying out extraction monitoring to ambient water quality.
Summary of the invention
For the problems referred to above, the object of this invention is to provide VOCs extraction element in a kind of water, this apparatus structure is simple, and simple installation, cost is lower, can effectively be separated by VOCs from water sample, and separation efficiency is higher.
For achieving the above object, the present invention takes following technical scheme: VOCs extraction element in a kind of water, is characterized in that: it comprises mist pipe, barrel shrond, atomizing piece, inclination pipeline, upper end arm, prolong, interior pipe, lower end arm, side arm and refrigerator; Described mist pipe two ends are hatch frame, described mist pipe is arranged in described barrel shrond, fixed by described atomizing piece and described barrel shrond sealed bottom bottom described mist pipe, described barrel shrond top is connected with the face seal of described mist pipe top exterior walls; Described mist pipe top exit is connected with described upper end arm by described inclination pipeline, and described upper end arm and described prolong top, interior pipe top are one-body molded, and described prolong is arranged in described refrigerator; Described interior pipe arranges in described prolong and forms sleeve pipe, and the entrance of described interior pipe is communicated with described upper end arm; Bottom described interior pipe with bottom described prolong, there is gap, be communicated with described lower end arm bottom described prolong; Be positioned at described prolong top one sidewall and be provided with the described side arm be communicated with it.
Described mist pipe sidewall is arranged with lower end arm and upper end arm in parallel, described lower end arm stretches to bottom described mist pipe, and described upper end arm inputs nitrogen carrier gas in described mist pipe.
Be made up of cylindrical shell, egative film and cover plate bottom described barrel shrond, described egative film and cover plate are screwed connection, and described cylinder body bottom is fixedly connected with described cover plate; Be positioned at described cover plate middle position and be provided with one for installing the storage tank of silica gel sheath; Described atomizing piece is provided with in described silica gel sheath.
Described barrel shrond top and described mist pipe top exterior walls junction are provided with silica gel O and enclose.
Described refrigerator comprises aluminium block, cooling piece, radiator element and fan; Described prolong is placed in the described aluminium block wrapped up by heat insulation foam, and described aluminium block outside is disposed with described cooling piece, radiator element and fan.
Described atomizing piece adopts ultrasonic atomizatio sheet.
The present invention is owing to taking above technical scheme, it has the following advantages: the water sample that 1, the present invention adopts ultrasonic atomizatio sheet high frequency mechanical energy to be passed to contact with it causes concussion, during atomization, water surface central authorities can be filled with the water column of one similar fountain, and the ultrasonic vibration to water sample and the water column that is filled with all can accelerate being separated of VOCs and water sample in water to the stirring of liquid level.Ultrasonic wave, while mechanical energy is passed to water sample, also has portion of energy to be converted into energy heats water sample, and the raising of temperature also contributes to the spilling of VOCs, and then is effectively separated by the VOCs in water body.2, the ultrasonic atomizatio that the present invention adopts produces the distribution of a large amount of droplet and forms aerosol in the gas phase, aerocolloidal form considerably increases the contact area of liquid phase and gas phase, the VOCs facilitated in droplet is distributed to gas phase by liquid phase, and realize the separation of gas-liquid, separation efficiency is higher.3, the present invention adopts nitrogen to be blown off by VOCs endlessly mist pipe as carrier gas, effectively can ensure the VOCs concentration maintaining lower level above the water surface.4, the present invention is owing to being in negative pressure state when being atomized, and therefore effectively reduces the surface vapor pressure of water sample, improves VOCs allocation proportion in the gas phase.5, the prolong that adopts of the present invention can most of steam of producing of condensation, removing atomization, effectively extracts the VOCs in water sample.6, the ultrasonic atomizatio adopted due to the present invention belongs to physical process, therefore pollution-free to water sample.The present invention can extensively apply in ambient water quality treatment research field.
Accompanying drawing explanation
Fig. 1 is one-piece construction diagrammatic cross-section of the present invention;
Fig. 2 is mist pipe of the present invention and barrel shrond sectional view;
Fig. 3 is refrigerator side cutaway view of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1 and Figure 2, the invention provides VOCs extraction element in a kind of water, it comprises mist pipe 1, barrel shrond 2, atomizing piece 3, inclination pipeline 4, upper end arm 5, prolong 6, interior pipe 7, lower end arm 8, side arm 9 and refrigerator.
Mist pipe 1 adopts vertical glass tubes, and two ends are hatch frame; Mist pipe 1 is arranged in barrel shrond 2, and fixed by atomizing piece 3 and barrel shrond 2 sealed bottom bottom mist pipe 1, barrel shrond 2 top is connected with the face seal of mist pipe 1 top exterior walls.Mist pipe 1 top exit is connected with upper end arm 5 by inclination pipeline 4, and upper end arm 5 and prolong 6 top, interior pipe 7 top are one-body molded, and prolong 6 is arranged in refrigerator.Interior pipe 7 arranges in prolong 6 and forms sleeve pipe, and the entrance of interior pipe 7 is communicated with upper end arm 5; Bottom interior pipe 7 with bottom prolong 6, there is gap, be communicated with lower end arm 8 bottom prolong 6.Be positioned at prolong 6 top one sidewall and be provided with the side arm 9 be communicated with it.
In above-described embodiment, as shown in Figure 1 and Figure 2, mist pipe 1 sidewall is arranged with lower end arm 10 and upper end arm 11 in parallel, lower end arm 10 stretches to bottom mist pipe 1, for be inputted by water sample in mist pipe 1 and to ensure that water sample can effectively atomization on atomizing piece 3.Upper end arm 11 for inputting carrier gas in mist pipe 1, and in the present embodiment, carrier gas adopts nitrogen.
In the various embodiments described above, barrel shrond 2 can adopt aluminium to make, and is made up of bottom it cylindrical shell 12, egative film 13 and cover plate 14, and egative film 13 and cover plate 14 are screwed connection, are fixedly connected with bottom cylindrical shell 12 with cover plate 14.Be positioned at cover plate 14 middle position and be provided with one for installing the storage tank of silica gel sheath 15, sealed with egative film 13 by the cover plate 14 of silica gel sheath 15 by storage tank place.Be provided with atomizing piece 3 in silica gel sheath 15, realize atomizing piece 3 sealing to be fixed on bottom barrel shrond 2.
In the various embodiments described above, barrel shrond 2 top and mist pipe 1 top exterior walls junction are provided with silica gel O and enclose 16, enclose 16 realize while barrel shrond 2 and mist pipe 1 seal and fix, also effectively having cushioned the pressure that barrel shrond 2 presses down mist pipe 1 by silica gel O.
In the various embodiments described above, atomizing piece 3 can adopt ultrasonic atomizatio sheet.
In the various embodiments described above, mist pipe 1 top exit and the junction of inclination pipeline 4 adopt two pass joints 17 to be connected; Inclination pipeline 4 and upper end arm 5 junction also adopt two pass joints 17 to be connected.
In the various embodiments described above, refrigerator comprises aluminium block 18, cooling piece 19, radiator element 20 and fan 21.Prolong 6 is placed in the aluminium block 18 wrapped up by heat insulation foam, and aluminium block 18 outside is disposed with cooling piece 19, radiator element 20 and fan 21, after cooling piece 19 and aluminium block 18 heat exchange, heat is delivered to radiator element 20, and is distributed to outside by fan 21.Control refrigerator work by existing temperature controller, make aluminium block 18 and prolong 6 maintain lesser temps.
In the various embodiments described above, inclination pipeline 4 adopts PTFE tube, and two pass joints 17 adopt PTFE two pass joint.
In sum, in use, carrier gas enters in mist pipe 1 by upper end arm 11 in the present invention; Water sample enters in mist pipe 1 through lower end arm 10 simultaneously, and after being atomized by water sample by atomizing piece 3, together enters in interior pipe 7 through inclination pipeline 4 with carrier gas.Air-flow arrives bottom prolong 6 through interior pipe 7, is turned back upwards along the gap between two tube walls by the gap bottom interior pipe 7 and prolong 6, and carries out condensation process by prolong 6 pairs of air-flows.VOCs after condensation in air-flow is expelled to outside VOCs monitoring device with carrier gas through side arm 9, and the liquid water formed in after condensation is attached to tube wall and becomes stock to stay, and is gathered in lower end arm 8 li, is taken away discharge after sample introduction by peristaltic pump.
The various embodiments described above are only for illustration of the present invention; the structure of each parts, size, setting position and shape all can change to some extent; on the basis of technical solution of the present invention; all improvement of carrying out individual part according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a VOCs extraction element in water, is characterized in that: it comprises mist pipe, barrel shrond, atomizing piece, inclination pipeline, upper end arm, prolong, interior pipe, lower end arm, side arm and refrigerator;
Described mist pipe two ends are hatch frame, described mist pipe is arranged in described barrel shrond, fixed by described atomizing piece and described barrel shrond sealed bottom bottom described mist pipe, described barrel shrond top is connected with the face seal of described mist pipe top exterior walls; Described mist pipe top exit is connected with described upper end arm by described inclination pipeline, and described upper end arm and described prolong top, interior pipe top are one-body molded, and described prolong is arranged in described refrigerator; Described interior pipe arranges in described prolong and forms sleeve pipe, and the entrance of described interior pipe is communicated with described upper end arm; Bottom described interior pipe with bottom described prolong, there is gap, be communicated with described lower end arm bottom described prolong; Be positioned at described prolong top one sidewall and be provided with the described side arm be communicated with it.
2. VOCs extraction element in a kind of water as claimed in claim 1, it is characterized in that: described mist pipe sidewall is arranged with lower end arm and upper end arm in parallel, described lower end arm stretches to bottom described mist pipe, and described upper end arm inputs nitrogen carrier gas in described mist pipe.
3. VOCs extraction element in a kind of water as claimed in claim 1, it is characterized in that: be made up of cylindrical shell, egative film and cover plate bottom described barrel shrond, described egative film and cover plate are screwed connection, and described cylinder body bottom is fixedly connected with described cover plate; Be positioned at described cover plate middle position and be provided with one for installing the storage tank of silica gel sheath; Described atomizing piece is provided with in described silica gel sheath.
4. VOCs extraction element in a kind of water as claimed in claim 2, it is characterized in that: be made up of cylindrical shell, egative film and cover plate bottom described barrel shrond, described egative film and cover plate are screwed connection, and described cylinder body bottom is fixedly connected with described cover plate; Be positioned at described cover plate middle position and be provided with one for installing the storage tank of silica gel sheath; Described atomizing piece is provided with in described silica gel sheath.
5. VOCs extraction element in a kind of water as described in any one of Claims 1 to 4, is characterized in that: described barrel shrond top and described mist pipe top exterior walls junction are provided with silica gel O and enclose.
6. VOCs extraction element in a kind of water as described in any one of Claims 1 to 4, is characterized in that: described refrigerator comprises aluminium block, cooling piece, radiator element and fan; Described prolong is placed in the described aluminium block wrapped up by heat insulation foam, and described aluminium block outside is disposed with described cooling piece, radiator element and fan.
7. VOCs extraction element in a kind of water as claimed in claim 5, is characterized in that: described refrigerator comprises aluminium block, cooling piece, radiator element and fan; Described prolong is placed in the described aluminium block wrapped up by heat insulation foam, and described aluminium block outside is disposed with described cooling piece, radiator element and fan.
8. VOCs extraction element in a kind of water as described in Claims 1 to 4,7 any one, is characterized in that: described atomizing piece adopts ultrasonic atomizatio sheet.
9. VOCs extraction element in a kind of water as claimed in claim 5, is characterized in that: described atomizing piece adopts ultrasonic atomizatio sheet.
10. VOCs extraction element in a kind of water as claimed in claim 6, is characterized in that: described atomizing piece adopts ultrasonic atomizatio sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110114.6A CN104761016B (en) | 2015-03-13 | 2015-03-13 | Extraction device of VOCs from water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110114.6A CN104761016B (en) | 2015-03-13 | 2015-03-13 | Extraction device of VOCs from water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104761016A true CN104761016A (en) | 2015-07-08 |
| CN104761016B CN104761016B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510110114.6A Expired - Fee Related CN104761016B (en) | 2015-03-13 | 2015-03-13 | Extraction device of VOCs from water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181419A (en) * | 2015-10-22 | 2015-12-23 | 中国科学院合肥物质科学研究院 | Online and offline detection device and detection method for extracting volatile organic compounds in water body by ultrasonic atomization |
| CN105413206A (en) * | 2015-12-14 | 2016-03-23 | 贵州师范学院 | Evaporative condenser |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232178A (en) * | 1999-04-20 | 1999-10-20 | 吉林大学 | Supersonic atomizer |
| CN103762150A (en) * | 2014-01-27 | 2014-04-30 | 中国科学技术大学 | Ultrasonic atomization sample introduction volatile solvent assisting ionization low-pressure photo ionization mass spectrum device |
-
2015
- 2015-03-13 CN CN201510110114.6A patent/CN104761016B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232178A (en) * | 1999-04-20 | 1999-10-20 | 吉林大学 | Supersonic atomizer |
| CN103762150A (en) * | 2014-01-27 | 2014-04-30 | 中国科学技术大学 | Ultrasonic atomization sample introduction volatile solvent assisting ionization low-pressure photo ionization mass spectrum device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181419A (en) * | 2015-10-22 | 2015-12-23 | 中国科学院合肥物质科学研究院 | Online and offline detection device and detection method for extracting volatile organic compounds in water body by ultrasonic atomization |
| CN105181419B (en) * | 2015-10-22 | 2017-11-17 | 中国科学院合肥物质科学研究院 | The online and offline detection means and detection method of volatile organic matter in a kind of ultrasonic atomizatio extraction water body |
| CN105413206A (en) * | 2015-12-14 | 2016-03-23 | 贵州师范学院 | Evaporative condenser |
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| CN104761016B (en) | 2017-05-10 |
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Granted publication date: 20170510 Termination date: 20200313 |