CN205091173U - Volatile organic compounds sample gas condensation water trap - Google Patents
Volatile organic compounds sample gas condensation water trap Download PDFInfo
- Publication number
- CN205091173U CN205091173U CN201520677380.2U CN201520677380U CN205091173U CN 205091173 U CN205091173 U CN 205091173U CN 201520677380 U CN201520677380 U CN 201520677380U CN 205091173 U CN205091173 U CN 205091173U
- Authority
- CN
- China
- Prior art keywords
- volatile organic
- organic matter
- cold junction
- coagulated
- air cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a gaseous water trap belongs to the environmental monitoring field, concretely relates to volatile organic compounds sample gas condensation water trap. Include: install in condensation head on the cold junction, the condensation head includes: by the spill cell body that non -metallic material constitutes, place in spill cell body bottom and the metal condenser pipe that is the planar spiral shape that constitutes by passivation metal material follow cell body bottom outwards place in proper order in insulating piece, heat shield and conducting strip on the metal condenser pipe, and the conducting strip with the cold junction contacts. Therefore, the utility model has the advantages of as follows: (1 )The gaseous concentration effect of volatile organic compounds is good, can realize quantitative entrapment and quantitative thermal desorption, (2 )The energy consumption is low and pollution -free.
Description
Technical field
The utility model relates to a kind of gas dewatering device, belongs to environmental monitoring field, is specifically related to the air cooling of a kind of volatile organic matter sample and coagulates de-watering apparatus.
Background technology
Organic compound in air measures by gas chromatography and gas chromatography/mass spectrometry method usually, such as the mensuration of Ozone in Environmental Air presoma hydrocarbon and poisonous and harmful halogenated hydrocarbons and oxygen-bearing organic matter.
In surrounding air, the concentration of organic compound is lower, is difficult to directly measure by analytical instrument; Therefore, need to the organic compound in air carry out concentrated after analyze.
The concentrated method of VOCs in ambient air mainly contains the concentrated and low temperature blank pipe freeze concentration of adsorbent, during low temperature blank pipe freeze concentration volatile organic matter, needs first to dewater, otherwise the aqueous vapor in sample can be chilled in trap tube and results in blockage.The method that current volatile organic matter sample gas dewaters mainly contains permeable membrane and to dewater and low temperature blank pipe is freezing dewaters, EPA method TO-14 adopts the volatile organic matter in blank pipe freeze concentration sample, first dewater with permeable membrane, in the process dewatered, polar volatile organism such as group compounds of aldehydes and ketones is removed simultaneously, therefore EPA method TO-14 can only measure nonpolar volatile organic matter simultaneously.The freezing refrigerating method dewatered of low temperature blank pipe has semiconductor refrigerating, compressor cooling; Semiconductor refrigerating effect is poor, and compressor cooling power consumption is high, volume large, quality weight, needs regularly to add freon refrigerant, contaminated environment.
Utility model content
The utility model mainly solves above-mentioned technical matters existing in prior art, provides the air cooling of a kind of volatile organic matter sample and coagulates de-watering apparatus.This condensation de-watering apparatus good refrigeration effect, pollution-free, can to realize the condensation water removal operation of volatile organic matter thus can online or off-line analysis polarity and nonpolar all kinds of volatile organic matter.
To achieve these goals, according to an aspect of the present utility model, provide the air cooling of a kind of volatile organic matter sample and coagulate de-watering apparatus, comprise: be installed on the condensation head on described cold junction, described condensation head comprises: the spill pond body be made up of nonmetallic materials, be positioned over the metal condenser tube in snail shape formed bottom the body of described spill pond and by passive metal material, bottom the body of described pond, be outwards positioned over insulating trip, heat shield and the conducting strip described metal condenser tube successively, and described conducting strip contacts with described cold junction; Described metal condenser tube is connected with temperature sensor.
Optimize, de-watering apparatus is coagulated in above-mentioned a kind of volatile organic matter sample air cooling, and the two ends of described metal condenser tube are connected with heating power supply.
Optimize, de-watering apparatus is coagulated in above-mentioned a kind of volatile organic matter sample air cooling, and the bottom of described pond body arranges the groove with the screw thread form of one fixed width and the degree of depth, and described metal condenser tube is installed in this groove.
Optimize, de-watering apparatus is coagulated in above-mentioned a kind of volatile organic matter sample air cooling, and described spill pond external body is provided with a sealing cover with gas inlet-outlet.
Optimize, de-watering apparatus is coagulated in above-mentioned a kind of volatile organic matter sample air cooling, described sealing cover comprises: be fixed on the fixed head on described cold junction, described fixed head is provided with muff, described muff is connected with a upper cover to be opened/closed, after described upper cover is closed, described fixed head, muff, upper cover form one and the top of described cold junction are wrapped in interior closed cavity.
Optimize, de-watering apparatus is coagulated in above-mentioned a kind of volatile organic matter sample air cooling, described upper cover (6) is provided with the ventilation tubule that two lead to described closed cavity inside.
Optimize, de-watering apparatus is coagulated in above-mentioned a kind of volatile organic matter sample air cooling, described cold junction is also arranged a drip tray.
Therefore, the utility model tool has the following advantages: (1) volatile organic matter sample gas water removal effect is good; (2) only freezingly to dewater, not freezing capturing volatile organic compound; (3) energy consumption is low and pollution-free.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is the utility model capillary cold end structure schematic diagram.
Accompanying drawing 3 is the utility model refrigerated condensation head partial structurtes schematic diagram.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In figure, low-temperature receiver 1, cold junction 2, condensation 3, spill pond body 301, metal condenser tube 302, insulating trip 303, heat shield 304, conducting strip 305, fixed head 4, muff 5, upper cover 6, drip tray 7, O-ring seal 8.
Embodiment:
As shown in Figure 1, de-watering apparatus is coagulated in the air cooling of a kind of volatile organic matter sample, comprise the cold junction 2 be connected with low-temperature receiver 1, be installed on condensation on cold junction 23, condensation 3 comprises: spill pond body 301, be positioned over the metal condenser tube 302 in snail shape formed bottom spill pond body 301 and by passive metal material, bottom pond body 301, be outwards positioned over insulating trip 303, heat shield 304 and conducting strip 305 metal condenser tube 302 successively, and conducting strip 305 contact with cold junction 2.Wherein, can use with screw these three thin slices of insulating trip 303, heat shield 304 and conducting strip 305 and spill little Chi body 391 bottom surface to be connected into and be integrated.Three kinds of thin slice sizes, shapes are mated with spill little Chi body interior shape, and sheet thickness can change according to respective functional requirement, such as 0.25mm-5mm.
Spill little Chi body 301 can select the nonmetallic materials such as teflon, pottery, quartz to form, insulating trip 303 can select the materials such as mica, heat shield 304 can be selected as the low thermal conductivity such as teflon, peek exotic material is made, and conducting strip 305 can high thermal conductivity coefficient, the high specific heat capacity metal material such as aluminium, copper or associated alloys be made.
The bottom surface of spill little Chi body 301 is processed with the groove of the screw thread form of one fixed width and the degree of depth, to install fixing metal condenser pipe 302.This metal condenser tube is that 30 ~ 50cm is long, the Passivation Treatment metal tube of 1mm ~ 3mm internal diameter, and metal tube material is stainless steel, copper or associated alloys pipe.
In the present embodiment, cold junction 2 is also provided with fixed head 4, fixed head 4 is provided with muff 5, muff 5 is connected with a upper cover 6 to be opened/closed, and after upper cover 6 is closed, fixed head 4, muff 5, upper cover 6 form one and the top of cold junction 2 are wrapped in interior closed cavity, upper cover 6 is provided with the ventilation tubule that leads to closed cavity inside, cold junction 2 also arranges a drip tray 7.
Adopt after said structure, condensation 3 sealing are arranged on the cold junction 2 of low-temperature receiver 1 (as cold-trap), and the conducting strip 305 that the high thermal conductivity coefficient in condensation 3, high specific heat capacity material are formed contacts with cold junction; Cold junction and condensation head insulating heat insulating material are incubated; Cold junction is freezed to the metal condenser tube 302 in condensation 3 by heat transfer, is reached the object of the moisture in only freezing trapping sample, not freezing all kinds of VOCs by the temperature controlling metal condenser tube 302; After condenser pipe 302 condensation dewaters, need, fast by being heated to more than 100 DEG C gasifications except water pipe except the ice in water pipe, to remove the moisture in condenser pipe 302 with nitrogen blowback.Because metal condenser tube 302 is with the heating of power supply direct-electrifying, and contacting with condenser pipe 302 is a low thermal conductivity sheet of insulation, therefore in condenser pipe 302 heating up process, thermal loss is little, and heating rate is fast, meet completely and to be rapidly heated the requirement dewatered, temperature is adjustable, controlled; Direct heating effect is better than thermal diffusion heating; Fast cooling is needed again, for freezing dewatering is prepared next time after condenser pipe 302 heating back blowing dewaters; The conducting strip 305 of what the skin due to condenser pipe 302 contacted with cold junction is a high heat conduction, high heat storage material, these parts are at the low temperature that (deposit) can be kept certain in water pipe thermal desorption process, after heating dewaters end, the cold junction of refrigeration machine can carry out fast cooling to condenser pipe 302, thus the circular flow of the system of guarantee.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as low-temperature receiver 1, cold junction 2, condensation 3, spill pond body 301, metal condenser tube 302, insulating trip 303, heat shield 304, conducting strip 305, fixed head 4, muff 5, upper cover 6, drip tray 7 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (7)
1. de-watering apparatus is coagulated in volatile organic matter sample air cooling, comprise: be installed on the condensation head (3) on cold junction (2), it is characterized in that, described condensation head (3) comprising: spill pond body (301) be made up of nonmetallic materials, be positioned over described spill pond body (301) bottom and the metal condenser tube (302) in snail shape be made up of passive metal material, the insulating trip (303) described metal condenser tube (302) is outwards positioned over successively from bottom, described pond body (301), heat shield (304) and conducting strip (305), and described conducting strip (305) contacts with described cold junction (2), the two ends of described metal condenser tube (302) are connected with heating power supply, described metal condenser tube (302) is connected with temperature sensor.
2. de-watering apparatus is coagulated in a kind of volatile organic matter sample according to claim 1 air cooling, it is characterized in that, the internal diameter of described condenser pipe (302) is 1-3mm.
3. de-watering apparatus is coagulated in a kind of volatile organic matter sample according to claim 1 air cooling, it is characterized in that, the bottom in described pond body (301) arranges the groove with the screw thread form of one fixed width and the degree of depth, and described metal condenser tube (302) is installed in this groove.
4. de-watering apparatus is coagulated in a kind of volatile organic matter sample according to claim 1 air cooling, it is characterized in that, described spill pond body (301) outer setting has one with the sealing cover of gas inlet-outlet.
5. de-watering apparatus is coagulated in a kind of volatile organic matter sample according to claim 4 air cooling, it is characterized in that, described sealing cover comprises: be fixed on the fixed head (4) on described cold junction (2), described fixed head (4) is provided with muff (5), described muff (5) is connected with a upper cover to be opened/closed (6), after described upper cover (6) is closed, described fixed head (4), muff (5), upper cover (6) form one and the top of described cold junction (2) are wrapped in interior closed cavity.
6. de-watering apparatus is coagulated in a kind of volatile organic matter sample according to claim 5 air cooling, it is characterized in that, described upper cover (6) is provided with the ventilation tubule that two lead to described closed cavity inside.
7. de-watering apparatus is coagulated in a kind of volatile organic matter sample according to claim 1 air cooling, it is characterized in that, described cold junction (2) is also arranged a drip tray (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677380.2U CN205091173U (en) | 2015-09-01 | 2015-09-01 | Volatile organic compounds sample gas condensation water trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677380.2U CN205091173U (en) | 2015-09-01 | 2015-09-01 | Volatile organic compounds sample gas condensation water trap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205091173U true CN205091173U (en) | 2016-03-16 |
Family
ID=55481848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520677380.2U Expired - Fee Related CN205091173U (en) | 2015-09-01 | 2015-09-01 | Volatile organic compounds sample gas condensation water trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205091173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181429A (en) * | 2015-09-01 | 2015-12-23 | 武汉市天虹仪表有限责任公司 | Volatile organic compound gas sample condensation and dehydration apparatus |
-
2015
- 2015-09-01 CN CN201520677380.2U patent/CN205091173U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181429A (en) * | 2015-09-01 | 2015-12-23 | 武汉市天虹仪表有限责任公司 | Volatile organic compound gas sample condensation and dehydration apparatus |
| CN105181429B (en) * | 2015-09-01 | 2018-08-31 | 武汉市天虹仪表有限责任公司 | A kind of solidifying de-watering apparatus of volatile organic matter sample air cooling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104502493B (en) | A kind of for the purge and trap instrument of volatile organic matter in continuous online observation water | |
| CN105043846A (en) | Volatile organic compound sample gas trapping system and method | |
| CN202141627U (en) | Low-temperature carrier gas cold-trapping and thermal-desorption device | |
| CN103852370A (en) | Mobile low-temperature adsorption concentration-thermal desorption device and application method thereof | |
| CN103202286B (en) | Electronic program controls at the uniform velocity to lower the temperature freezing plant | |
| CN205091173U (en) | Volatile organic compounds sample gas condensation water trap | |
| WO2017043468A1 (en) | Pre-processing device for gas analysis | |
| CN205897604U (en) | Electronic refrigerator | |
| CN202903576U (en) | Device for removing water through condensation of gas | |
| CN203824820U (en) | Mobile low-temperature adsorption concentration-thermal desorption device | |
| CN205786046U (en) | A kind of volatile organic matter gas capture devices | |
| CN105181431A (en) | Volatile organic compound gas trapping apparatus | |
| CN205786045U (en) | A kind of volatile organic matter sample gas trapping system | |
| CN105353046B (en) | A kind of volatile organic matter gas refrigeration trapping system and capture method | |
| CN105181429A (en) | Volatile organic compound gas sample condensation and dehydration apparatus | |
| CN110243664B (en) | Online enrichment device and application of atmospheric gas phase volatile/semi-volatile organic compounds | |
| CN104122350B (en) | A kind of cold-trap device for transformer insulated oil gas chromatographic | |
| CN207396415U (en) | A kind of VOC harvesters and VOC analytical equipments | |
| CN202066735U (en) | Automatic translation and lifting type trapping and desorbing device | |
| CN211122655U (en) | Mass spectrometer cryogenic device | |
| CN203181880U (en) | Constant-speed temperature-reducing and freezing device controlled by electronic program | |
| CN205786517U (en) | A kind of volatile organic matter gas refrigeration trapping system | |
| CN103983087A (en) | Gas trapping method | |
| CN211625803U (en) | Thermal insulation collecting appliance and device | |
| CN102100976B (en) | Headspace liquid phase micro-extraction device adopting volatile solvent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20180901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |