CN202442904U - Portable vacuum sampling device - Google Patents
Portable vacuum sampling device Download PDFInfo
- Publication number
- CN202442904U CN202442904U CN2012200832894U CN201220083289U CN202442904U CN 202442904 U CN202442904 U CN 202442904U CN 2012200832894 U CN2012200832894 U CN 2012200832894U CN 201220083289 U CN201220083289 U CN 201220083289U CN 202442904 U CN202442904 U CN 202442904U
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- sampling
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- portable vacuum
- refrigeratory
- bottle
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Abstract
A portable vacuum sampling device relates to sampling equipment and is used for sampling in the negative pressure distillation process of styrene. The portable vacuum sampling device comprises a casing, a cooling device and a sampling bottle, wherein the cooling device and the sampling bottle are arranged in the casing. The portable vacuum sampling device is characterized in that the cooling device and the sampling bottle are connected through a vacuum meter, a driving device is connected with the upper portion of the sampling bottle, a sampling opening is arranged at the bottom of the sampling bottle, the driving device comprises a sampling/pressurizing valve and a piston pump, the sampling device plug is arranged on the cooling device, a connecting short joint is arranged on the sampling device plug, and the sampling device plug is connected with the cooling device through the sampling valve. The portable vacuum sampling device has the advantages of being small and exquisite in size, reliable in work and simple and convenient to operate and can be directly inserted into a tower to required depth for sampling in on-line mode without influencing operation of the tower.
Description
Technical field:
The utility model relates to a kind of sampling equipment, is used for the sampling of styrene negative pressure distillation process.
Background technology:
80% styrene product is to be made by ethylbenzene dehydrogenation technology in the market, and technological process comprises that ethylbenzene dehydrogenation separates two parts with phenyl ethylene rectification.In rectification working process, because ethylbenzene and cinnamic boiling point are more approaching, separation difficulty, the required number of plates is more, and styrene very easily polymerization under higher temperature.Harsh because of separation condition, the puzzlement of the separation efficiency decline of unknown cause is often arranged, in order to improve separation efficiency, the composition that needs to analyze each bed is to understand the separation efficiency of each filling batch.Traditional analytical method is according to each bed temperature, pressure data, again according to the corresponding relation of itself and component, goes out the composition of each bed with computed in software, and this is a kind of indirect method, the interference of very easily being measured data error, and data are unreliable.The method that direct sample is also arranged, but sampling equipment is too huge heavy, uses extremely inconvenient.
Summary of the invention:
The utility model is just in order to address the above problem; And a kind of portable vacuum sampler is provided, it can insert desired depth sampling in the tower by direct-on-line, and does not influence the operation of tower; Can analyze each bed and be cut into branch really; Accurately to confirm separating effect, find out the position of loss in efficiency, for the scheme that improves column efficiency is taken out crucial foundation.
In order to achieve the above object, the technical scheme of the utility model employing is:
A kind of portable vacuum sampler comprises the refrigeratory, the sampling bottle that are provided with in shell and the shell; It is characterized in that: be connected through vacuum meter between said refrigeratory and the sampling bottle, said sampling bottle top is connected with drive unit, and its bottom is provided with sample tap; Described drive unit comprises sampling/pressurizing valve and piston pump; Said refrigeratory is provided with the ST plug, and said ST plug is provided with the connection pipe nipple, and is connected with refrigeratory through sample valve.
The beneficial effect of the utility model is: advantages of small volume, reliable operation, easy and simple to handle can be inserted desired depth sampling in the tower by direct-on-line, and not influence the operation of tower.
Description of drawings:
Fig. 1 is the utility model synoptic diagram.
Fig. 2 is the utility model process chart.
Among the figure: 1. shell; 2. sampling bottle; 3. sampling/pressurizing valve; 4. sample tap; 5. sample valve; 6. connection pipe nipple; 7. ST plug; 8. refrigeratory; 9. vacuum meter; 10. piston pump; 11. drive the gas interface.
Embodiment:
Can know that by attaching Fig. 1 and 2 the utility model comprises refrigeratory 8, the sampling bottle 2 that is provided with in shell 1 and the shell 1; Be connected through vacuum meter 9 between said refrigeratory 8 and the sampling bottle 2, said sampling bottle 2 tops are connected with drive unit, and its bottom is provided with sample tap 4; Described drive unit comprises interconnective sampling/pressurizing valve 3 and piston pump 10; Said refrigeratory 8 is provided with ST plug 7, and said ST plug 7 is provided with and connects pipe nipple 6, and is connected with refrigeratory 8 through sample valve 5.
In the utility model, refrigeratory 8, sampling/pressurizing valve 3, sampling bottle 2, vacuum meter 9, piston pump 10, interface etc. are adopted highly integrated design, and shell 1 protection is arranged.Because the temperature in the rectification column is higher, refrigeratory 8 is essential parts, and it adopts coil design, and its case design is a water tank, injects water during sampling and gets final product, and is very convenient during use.
ST plug 7 is individual components, links to each other with the sampling bottle 2 of the utility model ST with the stainless-steel tube of Φ 6.ST plug 7 is provided with and connects pipe nipple 6; Its effect be guarantee ST plug 7 insertion tower under vacuum condition inner and do not influence the vacuumizing of tower; But insertion depth reaches 1.5m in the tower, so just can obtain representational sample, has guaranteed the accuracy of sampling.
Before the sampling; To connect pipe nipple 6 earlier is connected with sample position tower wall reservation gate valve; The back is opened tower wall gate valve rapidly and ST plug 7 is inserted in the hole that connects pipe nipple, after treating all to insert ST plug 7 is connected to the utility model vacuum sampler and prepares sampling.
Referring to accompanying drawing 2; After adding chilled water in sampling forward direction refrigeratory 8 water tanks; " sampling/pressurizing valve " 3 is allocated to " sampling position (piston pump direction) "; ST plug 7 is connected to the utility model vacuum sampler, opens the sample valve 5 between ST plug 7 and the refrigeratory 8, open driving gas and take a sample.
Whether utilize vacuum meter 9 to observe vacuum tightnesss between sampling date is lower than the system vacuum degree and kept 10 minutes; After close the sample valve 5 between ST plug 7 and the refrigeratory 8; Breaking off ST is connected with system; To take a sample/pressurizing valve 3 is allocated to " pressurization position (connecting an atmosphere direction) ", and atmosphere gets in the sampling bottle 2 and makes sampling bottle 2 return to normal pressure, extracts the sample of obtaining in the sampling bottles 2 through sample tap 4 at last.The piston pump 10 of the utility model adopts pressurized air or nitrogen as power drive gas.
The utility model design is unique, advantages of small volume (wide 10cm, long, 30cm, high 50cm), and very light in weight (10kg), reliable operation, easy and simple to handle can relatively easily realize the purpose of online sampling from the rectification under vacuum tower.
Claims (1)
1. a portable vacuum sampler comprises the refrigeratory, the sampling bottle that are provided with in shell and the shell; It is characterized in that: be connected through vacuum meter between said refrigeratory and the sampling bottle, said sampling bottle top is connected with drive unit, and its bottom is provided with sample tap; Described drive unit comprises sampling/pressurizing valve and piston pump; Said refrigeratory is provided with the ST plug, and said ST plug is provided with the connection pipe nipple, and is connected with refrigeratory through sample valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200832894U CN202442904U (en) | 2012-03-07 | 2012-03-07 | Portable vacuum sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200832894U CN202442904U (en) | 2012-03-07 | 2012-03-07 | Portable vacuum sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202442904U true CN202442904U (en) | 2012-09-19 |
Family
ID=46824348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200832894U Expired - Fee Related CN202442904U (en) | 2012-03-07 | 2012-03-07 | Portable vacuum sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202442904U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630431A (en) * | 2013-12-20 | 2014-03-12 | 中国海洋石油总公司 | Portable high-temperature flue gas sampler |
| CN104155149A (en) * | 2014-07-16 | 2014-11-19 | 中国科学院上海应用物理研究所 | Online sampling method and online sampler |
| CN106353140A (en) * | 2016-08-26 | 2017-01-25 | 江苏信泰机械有限公司 | Vacuum sampling system |
| CN107219100A (en) * | 2017-06-23 | 2017-09-29 | 天府认证有限公司 | The gas collecting apparatus tested for indoor formaldehyde content |
| CN109632404A (en) * | 2018-12-07 | 2019-04-16 | 佛山科学技术学院 | A kind of VOC acquisition device and acquisition method |
-
2012
- 2012-03-07 CN CN2012200832894U patent/CN202442904U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630431A (en) * | 2013-12-20 | 2014-03-12 | 中国海洋石油总公司 | Portable high-temperature flue gas sampler |
| CN104155149A (en) * | 2014-07-16 | 2014-11-19 | 中国科学院上海应用物理研究所 | Online sampling method and online sampler |
| CN106353140A (en) * | 2016-08-26 | 2017-01-25 | 江苏信泰机械有限公司 | Vacuum sampling system |
| CN107219100A (en) * | 2017-06-23 | 2017-09-29 | 天府认证有限公司 | The gas collecting apparatus tested for indoor formaldehyde content |
| CN109632404A (en) * | 2018-12-07 | 2019-04-16 | 佛山科学技术学院 | A kind of VOC acquisition device and acquisition method |
| CN109632404B (en) * | 2018-12-07 | 2021-08-06 | 佛山科学技术学院 | VOC (volatile organic compound) acquisition device and method |
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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: 20120919 Termination date: 20150307 |
|
| EXPY | Termination of patent right or utility model |