CN111558233A - Splash-proof device that backward flow was drawed - Google Patents
Splash-proof device that backward flow was drawed Download PDFInfo
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- CN111558233A CN111558233A CN202010444077.3A CN202010444077A CN111558233A CN 111558233 A CN111558233 A CN 111558233A CN 202010444077 A CN202010444077 A CN 202010444077A CN 111558233 A CN111558233 A CN 111558233A
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- filter screen
- magnetic ring
- magnetic
- splash
- liquid
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- 238000000605 extraction Methods 0.000 claims abstract description 20
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000010992 reflux Methods 0.000 abstract description 18
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
- B01D29/035—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting with curved filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
Abstract
The invention discloses a splash-proof device for reflux extraction, and belongs to the field of analysis devices. The device comprises a filter screen for mounting to the lower end of a return pipe, the centre of the filter screen being downwardly convex. The invention provides a splash-proof device for reflux extraction, wherein a filter screen is arranged, so that an extract to be extracted driven by bumping can be sputtered on the filter screen, the refluxed liquid cannot be directly left under the action of surface tension and can flow to the lowest point along the filter screen and then fall, and the center of the filter screen is downwards convex, so that the refluxed liquid can flow on the filter screen, the extract to be extracted is driven to the center of the filter screen, and then when the surface tension of the refluxed liquid is not enough to support the gravity of the liquid, the liquid can drive the extract to be extracted to drop into a beaker together for continuous extraction.
Description
Technical Field
The invention relates to the field of analysis devices, in particular to a splash-proof device of a reflux extraction device.
Background
Reflux extraction is a common method of drug extraction. The reflux method is a method of extracting medicinal components with volatile organic solvent such as ethanol, heating and distilling the leachate, condensing the volatile solvent after distilling, and repeatedly refluxing the volatile solvent into the leacher to extract medicinal materials, wherein the steps are repeated until the effective components are completely extracted by reflux.
The reflux extraction pipe is a device for implementing a reflux extraction method, and generally comprises a condensation pipe and a reflux pipe, wherein the condensation pipe is sleeved outside the reflux pipe and is used for introducing cold water so as to take away heat of the reflux pipe. During the use, be connected to the beaker with the lower extreme of back flow, the medicinal material etc. are placed in the beaker, heat the beaker, and the organic solvent can extract effective substance evaporation and get into the back flow, and steam meets the condensation knot in the back flow pipe, flows back downwards under the action of gravity, gets back to in the beaker again.
Because during the backward flow, the liquid temperature of condensation is lower, directly drips into the beaker in, can cause the liquid in the beaker to explode and boil, and the explosion boiling can lead to the extract to be splashed to the back flow. On one hand, the extract to be extracted is attached to the inner wall of the reflux pipe, so that the effective components cannot be fully extracted, the final experimental result is influenced, and the experimental result is inaccurate; on the other hand, the extract is attached to the inner wall of the return pipe, and is not easy to clean after being dried, so that the subsequent other time is polluted.
Disclosure of Invention
The invention provides a splash-proof device of a reflux extraction device, which can solve the problem of poor precision in reflux extraction analysis in the prior art.
The utility model provides a backward flow extraction element's splashproof device, includes the filter screen, the filter screen is used for installing to the lower tip of back flow, the center department of filter screen is protruding downwards.
Preferably, the filter screen is hemispherical thin-walled structure, the peripheral circumference of filter screen evenly is provided with the elastic sheet, the elastic sheet with the internal diameter phase-match of back flow.
Preferably, still include the magnetic block, the elastic sheet is made for magnetic material, the magnetic block is fixed to the lower extreme outside of back flow pipe is used for adsorbing the filter screen.
Preferably, the magnetic block comprises a first semi-annular magnetic ring and a second semi-annular magnetic ring, the end of the first magnetic ring and the end of the second magnetic ring are arranged in an opposite manner, and when the first magnetic ring and the second magnetic ring are clasped at the lower end of the return pipe, a gap is formed between the end of the first magnetic ring and the end of the second magnetic ring.
Preferably, the first magnetic ring and the second magnetic ring are soft magnetic strips.
More preferably, the magnetic block is an electromagnet.
More preferably, the magnetic block is an electromagnet.
The invention provides a splash-proof device of a reflux extraction device, wherein a filter screen is arranged, so that an extract to be extracted driven by bumping can be sputtered on the filter screen, the refluxed liquid can not directly flow down under the action of surface tension and can flow to the lowest point along the filter screen and then drip, the center of the filter screen is downwards convex, so that the refluxed liquid can flow on the filter screen, the extract to be extracted is driven to the center of the filter screen, and then when the surface tension of the refluxed liquid is not enough to support the gravity of the liquid, the liquid can drive the extract to be extracted to drip into a beaker together for continuous extraction.
Drawings
FIG. 1 is a schematic view of a reflux extraction apparatus;
fig. 2 is a schematic structural diagram of a splash guard of the backflow extraction device provided by the invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a schematic diagram of a strainer of the anti-splash device;
FIG. 5 is a front view of FIG. 4;
fig. 6 is a schematic view of the mounting structure of the magnetic block.
Description of reference numerals:
10. the device comprises a condensation pipe 101, a connecting part 11, a return pipe 20, a filter screen 21, an elastic sheet 30, a magnetic block 301, a first magnetic ring 302 and a second magnetic ring.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
The first embodiment is as follows:
as shown in fig. 1 to 3, the anti-splash device of the backflow extraction device according to the embodiment of the present invention includes a filter screen 20, the filter screen 20 is configured to be mounted to a lower end portion of the backflow pipe 11, and a center of the filter screen 20 is downwardly protruded to form a hemispherical structure, but may also be a conical structure. The filter screen 20 can adopt a fixed connection mode, and can also adopt a detachable structure in order to conveniently detach and clean.
Specifically, as shown in fig. 4 and 5, the lower end of the filter screen 20 is a thin-walled structure with a hemispherical shape, elastic pieces 21 are uniformly arranged around the filter screen 20, and the elastic pieces 21 are matched with the inner diameter of the return pipe 11. The elastic pieces 21 are slightly expanded toward the outside, and when installed, the elastic pieces 21 are pressed to generate friction with the inner wall of the return pipe 11, thereby supporting the filter net 20 from falling.
When the elastic piece 21 is used, the elastic piece 21 is pressed to enable the elastic piece 21 to contract inwards, then the whole filter screen 20 is plugged into the return pipe 11, and the elastic piece 21 forces the elastic piece 21 to be tightly abutted to the inner side wall of the return pipe 11 under the trend of recovering the initial shape, so that a large friction force is generated between the elastic piece 21 and the inner side wall, and the filter screen 20 is fixed. When the reflux liquid is dropped into the beaker to generate bumping, the extract to be extracted splashes upwards and splashes onto the filter screen 20 under the blocking of the filter screen 20. The liquid flowing back will flow to the lowest part of the filter screen 20 under the combined action of surface tension and gravity, and when the liquid is enough and the gravity is larger than the surface tension of the liquid, the liquid will drop back to the beaker together with the extract to be extracted, so that the effective components of the extract to be extracted can be fully extracted by the solvent, and the experimental error is reduced. Meanwhile, the adhesion of the extract to be extracted to the inner side wall of the return pipe 11 is avoided, and the problems of difficult cleaning and pollution to subsequent experiments are avoided.
Example two:
on the basis of the first embodiment, since the backflow liquid generally flows downwards along the side wall of the backflow pipe 11, and the backflow liquid contacts the side wall of the backflow pipe 11, lubrication is formed, so that the friction force between the elastic sheet 21 and the inner side wall of the backflow pipe 11 is reduced, and the filter screen 20 falls off, the present embodiment further includes a magnetic block 30, the elastic sheet 21 is made of a magnetic material, and the magnetic block 30 is fixed to the outer side of the lower end of the backflow pipe 11 and is used for adsorbing the filter screen 20. The magnetic block 30 generates an adsorption force to adsorb the elastic sheet 21, thereby fixing the filter net 20. The magnetic block 30 may be arranged on the return tube 11 in a fixed connection, for example by adhesion.
Example three:
different from the second embodiment, the magnetic block 30 is fixedly arranged on the return pipe 11 and is inconvenient to disassemble, and is inconvenient to store when not in use; the up-down position is not adjusted in the use state. Therefore, in this embodiment, the magnetic block 30 includes a semi-annular first magnetic ring 301 and a semi-annular second magnetic ring 302, and the end of the first magnetic ring 301 and the end of the second magnetic ring 302 are arranged in an opposite manner, so that the ends of the first magnetic ring 301 and the second magnetic ring 302 can attract each other, as shown in fig. 6, when the first magnetic ring 301 and the second magnetic ring 302 are clasped to the lower end of the return pipe 11, a gap is formed between the end of the first magnetic ring 301 and the end of the second magnetic ring 302, and the existence of the gap can avoid a gap from being generated between the first magnetic ring 301, the second magnetic ring 302 and the return pipe 11 due to the end contact when the first magnetic ring 301 and the second magnetic ring 302 are clasped to the return pipe 11, thereby causing a problem that the first magnetic ring 301 and the second magnetic ring 302 slide off, so that the first magnetic ring 301 and the second magnetic ring 302 can be better attached to the return pipe 11 under the action of friction force.
Further, the first magnetic ring 301 and the second magnetic ring 302 are soft magnetic strips, and the soft magnetic strips can be more conveniently applied to the return pipes 11 with different pipe diameters.
Example four:
different from the third embodiment, the third embodiment is a magnetic block 30, and the magnetic block 30 is easy to fall off when the temperature is increased due to the gradual decrease of magnetism in the process of temperature increase. Therefore, in this embodiment, the magnetic block 30 is an electromagnet, which can maintain stable magnetism, and avoid loss of magnetism and falling due to high temperature during use.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (7)
1. The splash-proof device of the backflow extraction device is characterized by comprising a filter screen, wherein the filter screen is used for being installed at the lower end part of a backflow pipe, and the center of the filter screen is downwards protruded.
2. The anti-splash device of the backflow extraction device, according to claim 1, wherein the filter screen is of a hemispherical thin-wall structure, elastic pieces are uniformly arranged on the periphery of the filter screen in the circumferential direction, and the elastic pieces are matched with the inner diameter of the backflow pipe.
3. The anti-splash device of the backflow extraction device, as claimed in claim 1 or 2, further comprising a magnetic block, wherein the elastic sheet is made of a magnetic material, and the magnetic block is fixed to the outer side of the lower end of the backflow pipe for adsorbing the filter screen.
4. The anti-splash device of the backflow extraction device, wherein the magnetic block comprises a first semi-annular magnetic ring and a second semi-annular magnetic ring, the end of the first magnetic ring is arranged opposite to the end of the second magnetic ring, and when the first magnetic ring and the second magnetic ring are embraced at the lower end of the backflow pipe, the end of the first magnetic ring and the end of the second magnetic ring have a gap.
5. The anti-splash device of claim 4, wherein the first magnetic ring and the second magnetic ring are soft magnetic strips.
6. The anti-splash device of claim 3, wherein the magnetic block is an electromagnet.
7. The anti-splash device of claim 4, wherein the magnetic block is an electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444077.3A CN111558233A (en) | 2020-05-22 | 2020-05-22 | Splash-proof device that backward flow was drawed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444077.3A CN111558233A (en) | 2020-05-22 | 2020-05-22 | Splash-proof device that backward flow was drawed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111558233A true CN111558233A (en) | 2020-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010444077.3A Pending CN111558233A (en) | 2020-05-22 | 2020-05-22 | Splash-proof device that backward flow was drawed |
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| Country | Link |
|---|---|
| CN (1) | CN111558233A (en) |
Citations (14)
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|---|---|---|---|---|
| US4303614A (en) * | 1979-05-02 | 1981-12-01 | Buchi Laboratoriums-Technik Ag | Distilling unit |
| CN201291079Y (en) * | 2008-11-19 | 2009-08-19 | 河北大学 | Automatic temperature-control solvent continuous-loop mass-transfer solid-liquid extractor |
| CN101816842A (en) * | 2010-01-20 | 2010-09-01 | 复旦大学 | Far infrared radiation auxiliary extracting system |
| CN102133487A (en) * | 2010-01-22 | 2011-07-27 | 复旦大学 | Infrared extraction and reaction device and use thereof |
| CN204523010U (en) * | 2015-03-31 | 2015-08-05 | 中国矿业大学 | A kind of microwave chemical reaction intensified condenser tube |
| CN204656514U (en) * | 2015-04-03 | 2015-09-23 | 江苏倍达医药科技有限公司 | A kind of easy chemical reaction de-watering apparatus |
| CN205019757U (en) * | 2015-09-29 | 2016-02-10 | 内蒙古包钢钢联股份有限公司 | Novel crude carbolic acid contains neutral oil distillation device |
| CN205314493U (en) * | 2015-11-21 | 2016-06-15 | 宁波奥克斯空调有限公司 | Cover room wall opening's device |
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| CN108126767A (en) * | 2018-02-10 | 2018-06-08 | 济南盛泰电子科技有限公司 | A kind of distillation erosion control ball |
| CN209481612U (en) * | 2019-01-25 | 2019-10-11 | 河南懿丰油脂有限公司 | A kind of olive oil separation spray-proof oil equipment |
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-
2020
- 2020-05-22 CN CN202010444077.3A patent/CN111558233A/en active Pending
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| CN201291079Y (en) * | 2008-11-19 | 2009-08-19 | 河北大学 | Automatic temperature-control solvent continuous-loop mass-transfer solid-liquid extractor |
| CN101816842A (en) * | 2010-01-20 | 2010-09-01 | 复旦大学 | Far infrared radiation auxiliary extracting system |
| CN102133487A (en) * | 2010-01-22 | 2011-07-27 | 复旦大学 | Infrared extraction and reaction device and use thereof |
| CN204523010U (en) * | 2015-03-31 | 2015-08-05 | 中国矿业大学 | A kind of microwave chemical reaction intensified condenser tube |
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| CN209481612U (en) * | 2019-01-25 | 2019-10-11 | 河南懿丰油脂有限公司 | A kind of olive oil separation spray-proof oil equipment |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200821 |
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| RJ01 | Rejection of invention patent application after publication |