CN206772916U - One kind absorption pipe heating device - Google Patents
One kind absorption pipe heating device Download PDFInfo
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- CN206772916U CN206772916U CN201720669964.4U CN201720669964U CN206772916U CN 206772916 U CN206772916 U CN 206772916U CN 201720669964 U CN201720669964 U CN 201720669964U CN 206772916 U CN206772916 U CN 206772916U
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- adsorption tube
- insulating layer
- heater strip
- alumina insulating
- heating device
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Abstract
It the utility model is related to gas component detection field, more particularly to a kind of absorption pipe heating device.The utility model provides a kind of absorption pipe heating device, including adsorption tube, sleeve pipe and heater strip, adsorption tube is steel pipe, the first alumina insulating layer is coated in the outer surface of adsorption tube, sleeve pipe is steel pipe, coats the second alumina insulating layer in the inner surface of sleeve pipe, heater strip is set between the first alumina insulating layer and the second alumina insulating layer, heater strip is wrapped on the outside of adsorption tube, passes through high temperature inorganic gluing knot between heater strip and adsorption tube.Using the technical solution of the utility model, it is possible to achieve organic volatile fast pyrogenation adsorbs in adsorption tube, improves absorption thermal desorption efficiency.
Description
Technical field
Field of gas detection is the utility model is related to, pipe heating device is adsorbed more specifically to one kind.
Background technology
Volatile organic matter (VOC) is the general name of organic substance readily volatilized at normal temperatures, common are formaldehyde, toluene
With dimethylbenzene etc..In field of gas detection, it is often necessary to the VOC content in air is detected, but under normal circumstances, in air
VOC content is relatively low, so needing first to be pre-concentrated the VOC of air through adsorption tube, treats that VOC concentration reaches to a certain degree
Afterwards, the method for VOC heating is attached in chromatographic column from adsorption tube desorption, divides the analysis of variance for follow-up.
During the thermal desorption of adsorption tube, thermal desorption device is first heated to design temperature, is taken off when adsorption tube is heated to heat
After attached balance, the organic volatile in adsorption tube can be separated out and entered together in chromatographic column with carrier gas.In Chinese patent
A kind of pyrolysis haustorium is disclosed in CN100336576C, the scheme used is that built-in heating rod heats, and is the shortcomings that this scheme
That heats is inefficient, it is impossible to realizes the purpose of volatile organic matter in efficient detection air.Current published other skills
In art document, the technical scheme for solving this problem well can not be still found.
The content of the invention
The utility model is in order to solve the above-mentioned technical problem, there is provided one kind absorption pipe heating device, it is possible to achieve absorption
Organic volatile fast pyrogenation adsorbs in pipe, improves absorption thermal desorption efficiency.
The utility model for solve the technical problem used by absorption pipe heating device, including adsorption tube, sleeve pipe and
Heater strip, adsorption tube are steel pipe, coat the first alumina insulating layer in the outer surface of adsorption tube, sleeve pipe is steel pipe, in sleeve pipe
Inner surface coats the second alumina insulating layer, and heating is set between the first alumina insulating layer and the second alumina insulating layer
Silk, heater strip are wrapped on the outside of adsorption tube, pass through high temperature inorganic gluing knot between heater strip and adsorption tube.Using the utility model
In heat of adsorption desorption device, the conduction efficiency of heat can be improved, shorten the time that adsorption tube is warming up to specified temp.
As further optimization of the present utility model, the thickness of the first alumina insulating layer is 15 microns, the second aluminum oxide
The thickness of insulating barrier is 30 microns.The thickness of alumina insulating layer reaches 15 microns of insulation effects that can ensure adsorption tube, the
The thickness of one insulating barrier is 15 microns, can both reach insulation, heat can be made quickly to be delivered to inside adsorption tube again.Due to oxygen
The heat conductivility for changing aluminium be less than steel, thus the thickness of the second alumina insulating layer is arranged to 30 microns can be in reduction heat
Scatter and disappear, through Experimental comparison, the second alumina insulating layer thickness is arranged to 30 microns, temperature rise speed can be improved, but by
Limited in view of technique, continuing to increase the thickness of the second aluminum oxide can cause process costs to increase considerably.
As further optimization of the present utility model, the material of heater strip is copper or aluminium.
As further optimization of the present utility model, the wall thickness of the adsorption tube is 0.3mm.
Adsorption-desorption device in the utility model can realize that VOC fast pyrogenations adsorb in adsorption tube, and heater strip will adsorb
Pipe is heated to 220 DEG C of times for only needing 18s from 20 DEG C, greatly improves adsorption tube temperature rise efficiency.
Brief description of the drawings
Fig. 1 is the utility model embodiment absorption pipe heating device cross-sectional view.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
Fig. 1 following description describes optional embodiment of the present utility model to instruct how those skilled in the art implement
With reproduce the utility model, and simplify or eliminate some routine techniques.
Fig. 1 show schematically absorption pipe heating device cross-sectional view, such as Fig. 1 in the utility model embodiment
It is shown, pipe heating device, including adsorption tube 5, sleeve pipe 1 and heater strip 3 are adsorbed, adsorption tube 5 is steel pipe, in the outer surface of adsorption tube
The first alumina insulating layer 4 is coated, sleeve pipe 1 is steel pipe, the second alumina insulating layer 2 is coated in the inner surface of sleeve pipe 1, first
Heater strip 3 is set between the alumina insulating layer 2 of alumina insulating layer 4 and second, and heater strip 3 is wrapped in the outside of adsorption tube 5, heating
Pass through high temperature inorganic gluing knot between silk 3 and adsorption tube 5.Using the heat of adsorption desorption device in the utility model, heat can be improved
The conduction efficiency of amount, shorten the time that adsorption tube is warming up to specified temp.
In the present embodiment, the thickness of the first alumina insulating layer 4 is 15 microns, the thickness of the second alumina insulating layer 2
For 30 microns.The thickness of alumina insulating layer reaches 15 microns of insulation effects that can ensure adsorption tube, the thickness of the first insulating barrier
Spend for 15 microns, can both reach insulation, heat can be made quickly to be delivered to inside adsorption tube again.Due to the thermal conductivity of aluminum oxide
Steel can be less than, therefore the thickness of the second alumina insulating layer 2 is arranged into 30 microns to reduce scattering and disappearing for heat, through experiment
Contrast, is arranged to 30 microns by the thickness of the second alumina insulating layer 2, can improve temperature rise speed, but due to consideration that work
Skill limits, and continuing to increase the thickness of the second alumina insulating layer 2 can cause process costs to increase considerably.
In the present embodiment, the material of heater strip is copper.The wall thickness of adsorption tube is 0.3mm.
Adsorption-desorption device in the utility model can realize that VOC fast pyrogenations adsorb in adsorption tube, and heater strip will adsorb
Pipe is heated to 220 DEG C of times for only needing 18s from 20 DEG C, greatly improves adsorption tube temperature rise efficiency.
Drawn according to measured result, the temperature T and heat time t of adsorption tube relation are as shown in table 1.
| t(s) | 5 | 10 | 15 | 18 |
| T(℃) | 83 | 148 | 207 | 220 |
Table 1
Above example is only preferred embodiment of the present utility model, it is noted that above-mentioned preferred embodiment
Be not construed as to limitation of the present utility model, the scope of protection of the utility model should using claim limited range as
It is accurate.For those skilled in the art, do not departing from spirit and scope of the present utility model, can also do
Go out some improvements and modifications, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (4)
1. one kind absorption pipe heating device, including adsorption tube, sleeve pipe and heater strip, it is characterised in that the adsorption tube is steel pipe,
The first alumina insulating layer is coated in the outer surface of adsorption tube, described sleeve pipe is steel pipe, and the second oxygen is coated in the inner surface of sleeve pipe
Change aluminum insulation layer, heater strip, the heater strip winding are set between the first alumina insulating layer and the second alumina insulating layer
On the outside of adsorption tube, pass through high temperature inorganic gluing knot between heater strip and adsorption tube.
2. absorption pipe heating device according to claim 1, it is characterised in that the thickness of first alumina insulating layer
For 15 microns, the thickness of second alumina insulating layer is 30 microns.
3. absorption pipe heating device according to claim 1, it is characterised in that the material of the heater strip is copper or aluminium.
4. absorption pipe heating device according to claim 1, it is characterised in that the wall thickness of the adsorption tube is 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669964.4U CN206772916U (en) | 2017-06-10 | 2017-06-10 | One kind absorption pipe heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669964.4U CN206772916U (en) | 2017-06-10 | 2017-06-10 | One kind absorption pipe heating device |
Publications (1)
| Publication Number | Publication Date |
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| CN206772916U true CN206772916U (en) | 2017-12-19 |
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ID=60636158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720669964.4U Active CN206772916U (en) | 2017-06-10 | 2017-06-10 | One kind absorption pipe heating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206772916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132106A (en) * | 2017-06-10 | 2017-09-05 | 苏州冷杉精密仪器有限公司 | A kind of heat of adsorption desorption device |
-
2017
- 2017-06-10 CN CN201720669964.4U patent/CN206772916U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132106A (en) * | 2017-06-10 | 2017-09-05 | 苏州冷杉精密仪器有限公司 | A kind of heat of adsorption desorption device |
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