CN2725881Y - Atmosphere cold-trap sampler - Google Patents
Atmosphere cold-trap sampler Download PDFInfo
- Publication number
- CN2725881Y CN2725881Y CN 200420087560 CN200420087560U CN2725881Y CN 2725881 Y CN2725881 Y CN 2725881Y CN 200420087560 CN200420087560 CN 200420087560 CN 200420087560 U CN200420087560 U CN 200420087560U CN 2725881 Y CN2725881 Y CN 2725881Y
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- sampling
- copper
- refrigeration
- cold
- adsorption tube
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Abstract
The utility model discloses an atmosphere cold-trap sampler, which is characterized in that a refrigerant sampling body 1 is arranged on the atmosphere cold-trap sampler, the surrounding of the refrigerant sampling body 1 is coated by a heat insulating material 2, a copperplate 16 is adpressed to the refrigerant sampling body, and the copperplate is connected with the cold end of the semiconductor refrigeration wafer 15 through a heat conducting silicone grease; a radiation fin 14 is arranged on the hot end of the semiconductor refrigeration wafer, and a radiation fan is arranged on the radiation fin; a vent pipe is connected with a sampling adsorption tube 6 of the refrigerant sampling body, and a flow regulating valve 11, a flowmeter 12 and a suction pump 13 are arranged in sequence on the vent pipe. The atmosphere cold-trap sampler has the advantages of simple structure, low cost and easy operation, and effectively reduces the ambient air humidity while proceeding low temperature sampling and effectively enhances the sampling result.
Description
Technical field
The utility model relates to a kind of atmospheric sampling instrument of gathering pollutants such as benzene series thing in the atmospheric environment, TVOC.
Background technology
To the detection of polluter content such as benzene series thing, TVCO in the atmospheric environment, generally be to adopt vapor-phase chromatography at present.As: GB11737-89 " benzene, toluene and dimethylbenzene health test method in the atmosphere of residential district ", GB50325-2001 " civil building engineering indoor environmental pollution control standard ", GB/T18883-2002 " IAQ (indoor air quality) standard ".In these standard methods, the height that the sampling adsorption tube is gathered atmospheric samples efficient will directly have influence on the result of detection.And when sampling atmospheric temperature height directly have influence on sampling efficiency, a large amount of sample temperatures that facts have proved pollutants such as benzene series thing, TVOC are when 5 ℃ of left and right sides, collecting efficiency is the highest.Yet, also there is not to reduce the temperature of atmospheric environment sampling in the market, and the sampling instrument of the condensate water that produces therefrom of filtering.If connect cold-trap device and water treatment plant with common normal temperature atmosphere sampling instrument, its path length, difficult sealing makes the testing result poor reliability.
Summary of the invention
The purpose of this utility model provides a kind of atmosphere cold-trap sampling instrument, and it can carry out the cold-trap sampling when reducing the atmospheric environment temperature, and the condensate water filtering that is produced in the time of cold-trap being sampled again improves sampled result effectively.
In order to achieve the above object, the technical scheme that the utility model adopted is: be provided with a refrigeration sampling body, this refrigeration sampling body is made of the copper body of two hollows, between two copper bodies, be provided with connecting pipe, be respectively equipped with the drainage screw plug in the bottom of two copper bodies, be provided with to sealing draft tube and sampling adsorption tube at an upper portion thereof respectively, an end of draft tube and sampling adsorption tube is in the copper body, the other end has adsorbent in the sampling adsorption tube outside; Coat with insulation material around refrigeration sampling body, be glued with a copper coin on the refrigeration sampling body, this copper coin is connected by the cold junction of heat-conducting silicone grease with the semiconductor refrigerating wafer, so that NE BY ENERGY TRANSFER; The heat that the hot junction produced for the semiconductor refrigerating wafer that leaves in time is provided with heat radiator on the hot junction of semiconductor refrigerating wafer, be provided with radiator fan on heat radiator; On the sampling adsorption tube of refrigeration sampling body, be connected with a pipeline, flow control valve, flowmeter and aspiration pump are arranged on pipeline successively.When sampling, energising allows the work of semiconductor refrigerating wafer, it is freezed to refrigeration sampling body, and the work of aspiration pump can allow sample gas enter in the sampling refrigeration body, at this moment by draft tube, the sample gas temperature descends, water vapor condensation is wherein separated out, and falls on copper body lower end and the drainage screw plug, and sample gas outflows through the sampling adsorption tube under the effect of aspiration pump, detected pollutant wherein is adsorbed agent absorption, thereby reaches cold-trap, drainage, the incorporate purpose of sampling.
Atmosphere cold-trap sampling instrument provided by the utility model is simple in structure, and cost of manufacture is low, and is easy and simple to handle, and it can carry out the low temperature sampling when reducing atmospheric environment humidity effectively, improve sampled result effectively, helps improving the accuracy of testing result.
Description of drawings
Fig. 1 is the cut-away section structure master synoptic diagram of the utility model embodiment atmosphere cold-trap sampling instrument.
Fig. 2 is the cut-away section structure side synoptic diagram of the utility model embodiment atmosphere cold-trap sampling instrument.
Embodiment
In the structure shown in the figure, be provided with a refrigeration sampling body 1, this refrigeration sampling body is made of the copper body 3,8 of two hollows, is provided with connecting pipe 5 between two copper bodies, is respectively equipped with drainage screw plug 10,9 in the bottom of two copper bodies, be provided with to sealing draft tube 4 and sampling adsorption tube 6 at an upper portion thereof respectively, one end of draft tube 4 in copper body 3, the other end outside, the sampling adsorption tube 6 an end in copper body 8, the other end has adsorbent 7 in the sampling adsorption tube outside; Coat with insulation material 2 around refrigeration sampling body 1, be glued with a copper coin 16 on the refrigeration sampling body, this copper coin is connected by the cold junction of heat-conducting silicone grease with semiconductor refrigerating wafer 15, so that NE BY ENERGY TRANSFER; The heat that the hot junction produced for the semiconductor refrigerating wafer 15 that leaves in time is provided with heat radiator 14 on the hot junction of semiconductor refrigerating wafer, be provided with radiator fan on heat radiator; On the sampling adsorption tube 6 of refrigeration sampling body, be connected with a vent line, flow control valve 11, flowmeter 12 and aspiration pump 13 are arranged on vent line successively.When sampling, energising allows semiconductor refrigerating wafer 15 work, it is freezed to refrigeration sampling body 1, the work of aspiration pump 13 can allow sample gas enter in the sampling refrigeration body 1 by draft tube 4, at this moment, the sample gas temperature descends, water vapor condensation is wherein separated out, fall into the lower end of copper body 3,8 and the endoporus of drainage screw plug 10,9, sample gas outflows through sampling adsorption tube 6 under the effect of aspiration pump, detected pollutant wherein is adsorbed agent 7 absorption, thereby reaches cold-trap, drainage, the incorporate purpose of sampling.
Claims (1)
1, a kind of atmosphere cold-trap sampling instrument, it is characterized in that: be provided with a refrigeration sampling body [1], this refrigeration sampling body is made of copper body [3], [8] of two hollows, between two copper bodies, be provided with connecting pipe [5], be respectively equipped with drainage screw plug [10], [9] in the bottom of two copper bodies, be provided with to sealing draft tube [4] and sampling adsorption tube [6] at an upper portion thereof respectively, one end of draft tube [3] is in copper body [4], the other end outside, one end of sampling adsorption tube [6] is in copper body [8], the other end has adsorbent [7] in the sampling adsorption tube outside; Coat with insulation material [2] around refrigeration sampling body [1], be glued with a copper coin [16] on the refrigeration sampling body, this copper coin is connected by the cold junction of heat-conducting silicone grease with semiconductor refrigerating wafer [15]; On the hot junction of semiconductor refrigerating wafer, be provided with heat radiator [14], on heat radiator, be provided with radiator fan; On the sampling adsorption tube [6] of refrigeration sampling body, be connected with a vent line, flow control valve [11], flowmeter [12] and aspiration pump [13] are arranged on vent line successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087560 CN2725881Y (en) | 2004-09-01 | 2004-09-01 | Atmosphere cold-trap sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420087560 CN2725881Y (en) | 2004-09-01 | 2004-09-01 | Atmosphere cold-trap sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2725881Y true CN2725881Y (en) | 2005-09-14 |
Family
ID=35040596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420087560 Expired - Fee Related CN2725881Y (en) | 2004-09-01 | 2004-09-01 | Atmosphere cold-trap sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2725881Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130055791A1 (en) * | 2010-02-12 | 2013-03-07 | Gl Sciences Incorporated | Sample trapping method and sample trapping apparatus |
| CN104122350A (en) * | 2014-08-13 | 2014-10-29 | 国家电网公司 | Cold trap device for gas chromatography of transformer insulating oil |
| CN107328846A (en) * | 2017-08-10 | 2017-11-07 | 中国科学院长春应用化学研究所 | Mass spectrum sampling system and cooling device |
| CN109459520A (en) * | 2018-12-05 | 2019-03-12 | 成都科林分析技术有限公司 | A kind of multi-channel electronic cold-trap |
| CN110967229A (en) * | 2019-12-27 | 2020-04-07 | 安徽皖仪科技股份有限公司 | Trace-level atmospheric volatile organic compound sampling device and sampling method |
| CN111999129A (en) * | 2020-07-17 | 2020-11-27 | 中国科学院南京地理与湖泊研究所 | Atmospheric water vapor collecting device and using method thereof |
-
2004
- 2004-09-01 CN CN 200420087560 patent/CN2725881Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130055791A1 (en) * | 2010-02-12 | 2013-03-07 | Gl Sciences Incorporated | Sample trapping method and sample trapping apparatus |
| CN104122350A (en) * | 2014-08-13 | 2014-10-29 | 国家电网公司 | Cold trap device for gas chromatography of transformer insulating oil |
| CN104122350B (en) * | 2014-08-13 | 2016-01-20 | 国家电网公司 | A kind of cold-trap device for transformer insulated oil gas chromatographic |
| CN107328846A (en) * | 2017-08-10 | 2017-11-07 | 中国科学院长春应用化学研究所 | Mass spectrum sampling system and cooling device |
| CN109459520A (en) * | 2018-12-05 | 2019-03-12 | 成都科林分析技术有限公司 | A kind of multi-channel electronic cold-trap |
| CN110967229A (en) * | 2019-12-27 | 2020-04-07 | 安徽皖仪科技股份有限公司 | Trace-level atmospheric volatile organic compound sampling device and sampling method |
| CN111999129A (en) * | 2020-07-17 | 2020-11-27 | 中国科学院南京地理与湖泊研究所 | Atmospheric water vapor collecting device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |