CN102564812A - Novel gas sampling probe - Google Patents
Novel gas sampling probe Download PDFInfo
- Publication number
- CN102564812A CN102564812A CN201010586469XA CN201010586469A CN102564812A CN 102564812 A CN102564812 A CN 102564812A CN 201010586469X A CN201010586469X A CN 201010586469XA CN 201010586469 A CN201010586469 A CN 201010586469A CN 102564812 A CN102564812 A CN 102564812A
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- China
- Prior art keywords
- sampling probe
- stopple coupon
- gas sampling
- new gas
- import
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- 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.)
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Abstract
The invention discloses a novel gas sampling probe which comprises a sampling tube, wherein a metal sleeve pipe is arranged outside the sampling tube; the sampling tube is provided with an inlet; and a sample gas static tube is arranged at a position, which is a certain distance far away from the inlet of the sampling tube. According to the novel gas sampling probe, the miniaturization of the original sampling probe is realized, the manufacturing process is simpler, the whole sampling probe is further reduced for flow field disturbance, and the error caused by the sampling probe is greatly reduced.
Description
Technical field
The present invention relates to a kind of sampling probe, particularly relate to a kind of new gas sampling probe.
Background technology
Sampling analysis method has in the measurement of fuel-oil atmozation widely to be used; In order accurately to obtain the space distribution rule of fuel oil concentration; General method is exactly to collect the composition of the real gas of corresponding position at the sampling spot place, is extracted into sample in the analytic system through vacuum pump.But, the general complex manufacturing process of existing sampling probe in the prior art, size is bigger, and only is suitable for the uniform large scale fuel concentration field of measurement flow rate.
Summary of the invention
The object of the present invention is to provide a kind of novel sampling probe, be suitable for measuring the small size fuel concentration field, compact size, manufacturing process is simple, and measuring accuracy is high.
For realizing above-mentioned purpose, technical scheme provided by the invention is:
A kind of new gas sampling probe comprises stopple coupon, and said stopple coupon is provided with a metal sleeve outward, and said stopple coupon has an import, and the said stopple coupon import of distance a distance is provided with equally gas static tube.
Above-mentioned new gas sampling probe, wherein, described stopple coupon is processed by the 1Gr18Ni19Ti stainless steel material.
Above-mentioned new gas sampling probe, wherein, the lip of the import of said stopple coupon is through chamfered.
Above-mentioned new gas sampling probe, wherein, the angle of the lip chamfering of said stopple coupon import is less than 45 degree.
Above-mentioned new gas sampling probe, wherein, the thickness of the lip of the import of described stopple coupon is less than 0.05mm.
Above-mentioned new gas sampling probe wherein, scribbles one deck heat-insulation layer on the outer wall of said stopple coupon.
Above-mentioned new gas sampling probe, wherein, described heat-insulation layer is processed by monocomponent room-temperature cured silicon rubber.
New gas sampling probe of the present invention; Be particularly useful for the measurement of the appearance gas of small size fuel concentration field, realized the miniaturization of original sampling probe, manufacturing process is simpler; And the design of stopple coupon lip place chamfering; Can avoid the adhesion of oil droplet, also make the stopple coupon head of sampling probe reduce further simultaneously, and then reduce the error that sampling probe causes significantly for the disturbance in flow field at probe lip place.
Description of drawings
Fig. 1 is the structural representation of new gas sampling probe of the present invention.
Embodiment
Come the present invention is done further detailed explanation below in conjunction with Figure of description and embodiment.
As shown in Figure 1; New gas sampling probe of the present invention; Comprise stopple coupon 1 and metal sleeve 2; Stopple coupon 1 has an import 11, is provided with the appearance gas static tube 3 that is connected with stopple coupon 1 in import 11 a distance of distance sampling pipe 1, on the outer wall of stopple coupon 1, scribbles one deck heat-insulation layer 4.Wherein, in the present embodiment, the lip place of import 11 has carried out chamfered; The angle of chamfering is less than 45 degree, and the thickness of lip designs less than 0.05mm like this; Can reduce oil droplet in the fuel concentration field in the adhesion at lip place; Make the interference reduction that whole new gas sampling probe causes for the flow field, and then reduced the error that sampling probe causes in sampling process, improved the accuracy of measuring.In addition; Because the method that in the process of sampling, is adopted all is directly stopple coupon 1 to be heated; Therefore, stopple coupon 1 has adopted the 1Gr18Ni19Ti stainless steel material with big resistivity to process, and has avoided under higher temperature; Stopple coupon 1 and gas generation chemical reaction, the degree of accuracy that influence is measured.In addition, than the heat insulation effect of strong stopple coupon 1, on the outer wall of stopple coupon 1, scribble one deck heat-insulation layer 4 for further; It is processed by the one-component room curing silicon rubber; Like this, though stopple coupon 1 be heated to 350 the degree high temperature, the insulating property of heat-insulation layer 4 still keep good state; And have good heat insulation effect, guaranteed the degree of accuracy of measuring.
The principle of work of new gas sampling probe of the present invention is following: during measurement; Gas is got in the stopple coupon 1 by stopple coupon import 1; Metal sleeve 2 is used to measure the stagnation pressure of the appearance gas that gets in the stopple coupon 1; The appearance gas static tube 3 that distance sampling pipe 1 import 11 places are provided with is connected with stopple coupon 1 is used to measure the static pressure of the appearance gas in the stopple coupon 1.So just reduced the size of whole new gas stopple coupon to a certain extent, manufacturing process is also more simple.
In sum, new gas sampling probe of the present invention is because the setting of the appearance gas static tube of import a distance of metal sleeve and distance sampling pipe; Make the size of whole sampling probe reduce, manufacturing process is simpler, the design of the lip place chamfering of stopple coupon import; Also can reduce the adhesion of oil droplet at the lip place; Make stopple coupon reduce as much as possible, and then reduced the error that whole new gas sampling probe causes measurement in measuring process, further improved the accuracy of measuring for the interference in flow field; Be particularly useful for the measurement of the appearance gas of small size fuel concentration field
Should be pointed out that foregoing is enumerating of preferred forms of the present invention, the part of wherein not describing in detail to the greatest extent is construed as with the general fashion in present technique field and implements.Simultaneously, for one of ordinary skill in the art, in not departing from spiritual category of the present invention,, all will fall within the protection domain of claim of the present invention equivalent transformation and modification that the present invention did.
Claims (7)
1. a new gas sampling probe is characterized in that, comprises stopple coupon, and said stopple coupon is provided with a metal sleeve outward, and said stopple coupon has an import, and the said stopple coupon import of distance a distance is provided with equally gas static tube.
2. new gas sampling probe as claimed in claim 1 is characterized in that described stopple coupon is processed by the 1Gr18Ni19Ti stainless steel.
3. according to claim 1 or claim 2 new gas sampling probe is characterized in that, the lip of said stopple coupon import is through chamfered.
4. new gas sampling probe as claimed in claim 3 is characterized in that, the angle of the lip chamfering of said stopple coupon import is less than 45 degree.
5. new gas sampling probe as claimed in claim 4 is characterized in that the thickness of the lip of the import of described stopple coupon is less than 0.05mm.
6. new gas sampling probe as claimed in claim 5 is characterized in that, on the outer wall of said stopple coupon, scribbles one deck heat-insulation layer.
7. new gas sampling probe as claimed in claim 6 is characterized in that described heat-insulation layer is processed by monocomponent room-temperature cured silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586469XA CN102564812A (en) | 2010-12-13 | 2010-12-13 | Novel gas sampling probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586469XA CN102564812A (en) | 2010-12-13 | 2010-12-13 | Novel gas sampling probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102564812A true CN102564812A (en) | 2012-07-11 |
Family
ID=46410818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010586469XA Pending CN102564812A (en) | 2010-12-13 | 2010-12-13 | Novel gas sampling probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102564812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712833A (en) * | 2014-01-20 | 2014-04-09 | 北京大学 | Ordinary pressure sampling device suitable for lower pressure environments in high altitude areas |
-
2010
- 2010-12-13 CN CN201010586469XA patent/CN102564812A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712833A (en) * | 2014-01-20 | 2014-04-09 | 北京大学 | Ordinary pressure sampling device suitable for lower pressure environments in high altitude areas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |