CN204439604U - A kind of VOC thermal desorption pipe - Google Patents
A kind of VOC thermal desorption pipe Download PDFInfo
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- CN204439604U CN204439604U CN201520147647.7U CN201520147647U CN204439604U CN 204439604 U CN204439604 U CN 204439604U CN 201520147647 U CN201520147647 U CN 201520147647U CN 204439604 U CN204439604 U CN 204439604U
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- thermal desorption
- desorption pipe
- heater strip
- voc
- nut
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Abstract
A kind of VOC thermal desorption pipe, comprise thermal desorption pipe, heating element, described heating element comprises armouring heater strip, K type thermopair; Described armouring heater strip is coiled into a cyclic structure on thermal desorption pipe, and armouring heater strip is close to by described K type thermopair, and around on armouring heater strip.The VOC thermal desorption pipe that the utility model provides, heating arrangement volume is little, lightweight, and firing rate is fast, can realize Fast Heating.
Description
Technical field
The utility model relates to adsorption tube heating arrangement, especially relates to a kind of VOC thermal desorption heating arrangement.
Background technology
The effect of thermal desorption pipe is extracted by volatile matter and concentrate in GC or GC/MS to analyze from complex matrices, and for gaseous sample (as air), a kind of method of most convenient extracts known volume from the thermal desorption pipe that one or more adsorbents are housed.Such as, by air extraction in a container of finding time, other samples (as polymkeric substance, food, wrappage etc.) can directly can be put into thermal desorption pipe or larger container.
Programming rate is the important parameter that sample is deviate from from adsorbent, directly can affect the amount that sample enters chromatographic column.Select the time that the power of heater strip will be deviate from according to the temperature range of adsorbent, sample usually, sample can effectively be deviate to analyze by suitable heating rate.
At present, thermal desorption be independent stainless steel or glass tube, also separately will add heating arrangement, but this method to select suitable heating element in addition, also may not have the effect of Fast Heating; Glass tube easily breaks because expanding with heat and contract with cold in temperature-fall period in addition.
Utility model content
the purpose of this utility model solves the deficiencies in the prior art, provides a kind of VOC thermal desorption pipe.
The purpose of this utility model is achieved through the following technical solutions:
A kind of VOC thermal desorption pipe, comprise thermal desorption pipe, heating element, described heating element comprises armouring heater strip, K type thermopair; Described armouring heater strip is coiled into a cyclic structure on thermal desorption pipe, and armouring heater strip is close to by described K type thermopair, and around on armouring heater strip.
Above-mentioned a kind of VOC thermal desorption pipe, wherein, also comprises the first nut, the second nut, the 3rd nut.
Above-mentioned a kind of VOC thermal desorption pipe, wherein, described thermal desorption pipe is symmetrical, the right and left is respectively in ladder-shaper structure, raise successively from end to centre, be followed successively by the first gradient, the second gradient, the 3rd gradient, described first nut is arranged in the first gradient, described second nut is arranged in the second gradient, and described 3rd nut is arranged in the 3rd gradient.
Above-mentioned a kind of VOC thermal desorption pipe, wherein, described thermal desorption pipe is the stainless-steel tube of 1/4 inch diameter.
Above-mentioned a kind of VOC thermal desorption pipe, wherein, the power of described armouring heater strip is 500W, operating voltage is 220V, supporting with adsorbent, can realize being rapidly heated according to the requirement of adsorbent, sample in adsorbent is deviate from fast, be convenient to analyze accurately, and need external power supply and opertaing device to realize controlling.
Above-mentioned a kind of VOC thermal desorption pipe, wherein, described K type thermocouple temperature measurement least unit is 1 DEG C, may be used for controlling the temperature in being rapidly heated.
Armouring heater strip directly calorifies on 1/4 stainless-steel tube, realizes the object that the adsorbent in stainless-steel tube heats up fast, the sample in adsorbent is deviate from fast and analyzes in chromatogram.
In sum, the VOC thermal desorption pipe that the utility model provides, heating arrangement volume is little, lightweight, and firing rate is fast, can realize Fast Heating.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of VOC thermal desorption of the utility model pipe.
Reference numeral:
11. armouring heater strip 12.K type thermopairs
2. thermal desorption pipe 3. the 3rd nut
4. the second nut 5. first nut.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Please participate in Fig. 1, a kind of VOC thermal desorption pipe, comprises thermal desorption pipe 2, heating element, and described heating element comprises armouring heater strip 11, K type thermopair 12, and thermal desorption pipe 2 is the stainless-steel tube of 1/4 inch diameter.Described armouring heater strip 11 is coiled into a cyclic structure on thermal desorption pipe 2, and armouring heater strip 11 is close to by described K type thermopair 12, and around on armouring heater strip 11.
A kind of VOC thermal desorption of the utility model pipe also comprises the first nut 5, second nut 4, the 3rd nut 3, thermal desorption pipe 2 is symmetrical, the right and left is respectively in ladder-shaper structure, raise successively from end to centre, be followed successively by the first gradient, the second gradient, the 3rd gradient, first nut 5 is arranged in the first gradient, and the second nut 4 is arranged in the second gradient, and the 3rd nut 3 is arranged in the 3rd gradient.
Armouring heater strip 11, by heating, directly calorifies on 1/4 stainless-steel tube, realizes the object that the adsorbent in stainless-steel tube heats up fast, the sample in adsorbent is deviate from fast and analyzes in chromatogram.
During concrete enforcement, the power of armouring heater strip 11 is 500W, and operating voltage is 220V, supporting with adsorbent, can realize being rapidly heated according to the requirement of adsorbent, sample in adsorbent is deviate from fast, be convenient to analyze accurately, and need external power supply and opertaing device to realize controlling.K type thermopair 12 thermometric least unit is 1 DEG C, may be used for controlling the temperature in being rapidly heated.
In sum, the VOC thermal desorption pipe that the utility model provides, heating arrangement volume is little, lightweight, and firing rate is fast, can realize Fast Heating.
Above-described embodiment is only for illustration of technological thought and the feature of this patent, its object is to enable those skilled in the art understand the content of this patent and implement according to this, the scope of the claims of this patent only can not be limited with the present embodiment, namely the equal change done of all spirit disclosed according to this patent or modification, still drop in the scope of the claims of this patent.
Claims (6)
1. a VOC thermal desorption pipe, is characterized in that, comprises thermal desorption pipe (2), heating element, and described heating element comprises armouring heater strip (11), K type thermopair (12); Described armouring heater strip (11) is coiled into a cyclic structure on thermal desorption pipe (2), and described K type thermopair (12) is close to armouring heater strip (11), and around on armouring heater strip (11).
2. a kind of VOC thermal desorption pipe according to claim 1, is characterized in that, also comprise the first nut (5), the second nut (4), the 3rd nut (3).
3. a kind of VOC thermal desorption pipe according to claim 1, it is characterized in that, described thermal desorption pipe (2) is symmetrical, the right and left is respectively in ladder-shaper structure, raise successively from end to centre, be followed successively by the first gradient, the second gradient, the 3rd gradient, described first nut (5) is arranged in the first gradient, described second nut (4) is arranged in the second gradient, and described 3rd nut (3) is arranged in the 3rd gradient.
4. a kind of VOC thermal desorption pipe according to claim 1, is characterized in that, described thermal desorption pipe (2) is the stainless-steel tube of 1/4 inch diameter.
5. a kind of VOC thermal desorption pipe according to claim 1, is characterized in that, the power of described armouring heater strip (11) is 500W, and operating voltage is 220V.
6. a kind of VOC thermal desorption pipe according to claim 1, is characterized in that, described K type thermopair (12) thermometric least unit is 1 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520147647.7U CN204439604U (en) | 2015-03-16 | 2015-03-16 | A kind of VOC thermal desorption pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520147647.7U CN204439604U (en) | 2015-03-16 | 2015-03-16 | A kind of VOC thermal desorption pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204439604U true CN204439604U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520147647.7U Active CN204439604U (en) | 2015-03-16 | 2015-03-16 | A kind of VOC thermal desorption pipe |
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| CN (1) | CN204439604U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784887A (en) * | 2016-03-09 | 2016-07-20 | 上海烟草集团有限责任公司 | Ageing device for thermal desorption pipes and ageing method thereof |
| CN111443140A (en) * | 2020-04-10 | 2020-07-24 | 苏州天蓝分析仪器有限公司 | Enrichment detection analysis device for online measurement of ultralow-concentration VOC |
-
2015
- 2015-03-16 CN CN201520147647.7U patent/CN204439604U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784887A (en) * | 2016-03-09 | 2016-07-20 | 上海烟草集团有限责任公司 | Ageing device for thermal desorption pipes and ageing method thereof |
| CN105784887B (en) * | 2016-03-09 | 2018-09-25 | 上海烟草集团有限责任公司 | The aging equipment and its aging method of thermal desorption pipe |
| CN111443140A (en) * | 2020-04-10 | 2020-07-24 | 苏州天蓝分析仪器有限公司 | Enrichment detection analysis device for online measurement of ultralow-concentration VOC |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |