CN101564701B - Negative pressure magnetic stirring concentrator - Google Patents
Negative pressure magnetic stirring concentrator Download PDFInfo
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- CN101564701B CN101564701B CN2009100721517A CN200910072151A CN101564701B CN 101564701 B CN101564701 B CN 101564701B CN 2009100721517 A CN2009100721517 A CN 2009100721517A CN 200910072151 A CN200910072151 A CN 200910072151A CN 101564701 B CN101564701 B CN 101564701B
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- concentrator
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Abstract
A negative pressure magnetic stirring concentrator relates to a concentrator and aims at solving the problems that air leaks easily at a rotating shaft, the preparation cost is high when adopting a rotary evaporator to concentrate liquid, and high purity nitrogen is wasted, air is polluted when adopting a pressure blowing concentrator to concentrate liquid, etc. A vacuum chamber is fixedly connected with a lifting support through two retaining clips, internally provided with a condense water coiled tube and provided with a pumping hole connected with a vacuum pump thereof, the upper end of thevacuum chamber is provided with a reducing valve and the lower end thereof is provided with a solution recovering bottle, two ends of a connecting tube are communicated with the vacuum chamber and a concentrating bottle that is arranged at the bottom of a thermostat water bath, a bar magnet externally coated with polyfluortetraethylene is arranged in the concentrating bottle, an electric motor isfixedly arranged below the bottom of the thermostat water bath, and an output shaft of the electric motor is connected with the lower end surface of a long-strip magnet, the upper end surface of whic h is magnetically connected with the lower end surface of the bar magnet externally coated with polyfluortetraethylene. The concentrator has the advantages of good air tightness, low preparation cost,no need of consuming high purity nitrogen and light environment pollution.
Description
Technical field
The present invention relates to a kind of concentrating instrument.
Background technology
During organic component in analyzing biology, water, soil and some products, to use the liquid concentration device usually.At present, Chang Yong enrichment facility has Rotary Evaporators, Nitrogen evaporator.The Rotary Evaporators operating process mainly is that the glass container that will fill liquid tiltedly is put in the thermostat water bath, drives the glass container rotation by motor by deceleration device, vacuumizes with vavuum pump, solvent is vaporized under lower temperature, thereby reach concentrated purpose.This method has simple in structure, and is easy to operate, and the liquid that is evaporated is through the recuperable advantage of condensation, and the weak point of existence is that rotating shaft place leaks gas easily, and preparation cost is higher relatively, and once can only concentrate a sample.
Nitrogen evaporator mainly is to utilize high pure nitrogen purged solution surface, solvent is blown away solution concentration is increased, and also can accelerate to concentrate speed by the way of heating.The advantage of this method is can a plurality of samples of once concentration, and is easy and simple to handle.This method shortcoming is to need high pure nitrogen to purge, the waste high pure nitrogen, and the solvent that purges enters in the air, causes air pollution.
Summary of the invention
The purpose of this invention is to provide a kind of negative pressure magnetic stirring concentrator,, adopt problems such as Nitrogen evaporator concentrated liquid waste high pure nitrogen and contaminated air solve to adopt the Rotary Evaporators concentrated liquid rotating shaft place preparation cost that easily leaks gas higher.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: concentrating instrument of the present invention by magnetic agitation water-bath heater, vacuum condensing unit, solution returnable bottle, concentrate bottle, lifting support, two geometrical clamps and tube connector and form; Described magnetic agitation water-bath heater is made up of bar magnet, rectangular magnet and the motor of thermostat water bath, band polytetrafluoroethylene (PTFE) overcoat, and described vacuum condensing unit is made up of pressure-reducing valve, vacuum chamber and condensed water coil pipe; Described vacuum chamber is affixed by two geometrical clamps and lifting support, the condensed water coil pipe is housed in the vacuum chamber, the sidewall that one end of the condensed water delivery port of condensed water coil pipe and an end of condensed water water inlet pass vacuum chamber respectively is exposed, and the condensed water delivery port of condensed water coil pipe is positioned at the top of condensed water water inlet, the sidewall of vacuum chamber upper end is provided with the bleeding point that is connected with vavuum pump, on the exhaust outlet of vacuum chamber upper end pressure-reducing valve is housed, the solution returnable bottle is housed on the taphole of vacuum chamber lower end, one end of described tube connector passes the lower end sidewall and the vacuum chamber of vacuum chamber, the other end of tube connector is contained on the bottleneck that concentrates bottle and with concentrated bottle and is communicated with, described concentrated bottle places the bottom in the thermostat water bath, the bar magnet of band polytetrafluoroethylene (PTFE) overcoat places and concentrates in the bottle, motor is packed in the below of thermostat water bath inner bottom part, the output shaft of motor is connected with the lower surface of rectangular magnet, and the upper surface of described rectangular magnet is connected with the lower surface magnetic of the bar magnet of band polytetrafluoroethylene (PTFE) overcoat.
The present invention has following beneficial effect: one, vacuum chamber of the present invention vacuumizes by vavuum pump, make to concentrate in the bottle and be in negative pressure state, the boiling point of solution to be concentrated reduces, thermostat water bath can make treats that the concentrated solution intensification reaches solvent boiling point, be drawn in the vacuum chamber after the solvent vaporization, the volatilization of accelerated solvent reduces concentration time.The solvent gas that is inhaled in the vacuum chamber flow into after the condensation in the solution returnable bottle in vacuum chamber, thereby realizes the purpose that solvent in the sample is concentrated fast, has reduced the pollution to environment simultaneously; Two, concentrate bottle and have only a connecting interface with vacuum chamber, air-tightness is better; Three, concentrate of the stirring of the interior concentrate of bottle, accelerate heat transfer speed by the bar magnet of band polytetrafluoroethylene (PTFE) overcoat; Four, adopt lifting support, be convenient to concentrate bottle and be placed in the thermostat water bath; Five, the present invention's advantage of having simple in structure, low cost of manufacture, need not to consume high pure nitrogen.
Description of drawings
Fig. 1 is an overall structure front view of the present invention.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 present embodiment is described, the concentrating instrument of present embodiment by magnetic agitation water-bath heater, vacuum condensing unit, solvent recovery bottle 13, concentrate bottle 7, lifting support 14, two geometrical clamps 11 and tube connector 18 and form; Described magnetic agitation water-bath heater is made up of bar magnet 8, rectangular magnet 15 and the motor 9 of thermostat water bath 6, band polytetrafluoroethylene (PTFE) overcoat, and described vacuum condensing unit is made up of pressure-reducing valve 1, vacuum chamber 2 and condensed water coil pipe 4; Described vacuum chamber 2 is affixed by two geometrical clamps 11 and lifting support 14, condensed water coil pipe 4 is housed in the vacuum chamber 2, the sidewall that one end of the condensed water delivery port 3 of condensed water coil pipe 4 and an end of condensed water water inlet 5 pass vacuum chamber 2 respectively is exposed, and the condensed water delivery port 3 of condensed water coil pipe 4 is positioned at the top of condensed water water inlet 5, the sidewall of vacuum chamber 2 upper ends is provided with the bleeding point 10 that is connected with vavuum pump, on the exhaust outlet 16 of vacuum chamber 2 upper ends pressure-reducing valve 1 is housed, on the taphole 17 of vacuum chamber 2 lower ends solution returnable bottle 13 is housed, the lower end sidewall that one end of described tube connector 18 passes vacuum chamber 2 is communicated with vacuum chamber 2, the other end of tube connector 18 is contained on the bottleneck that concentrates bottle 7 and with concentrated bottle 7 and is communicated with, described concentrated bottle 7 places the bottom in the thermostat water bath 6, the bar magnet 8 of band polytetrafluoroethylene (PTFE) overcoat places and concentrates in the bottle 7, motor 9 is packed in the below of thermostat water bath 6 inner bottom parts, the output shaft of motor 9 is connected with the lower surface of rectangular magnet 15, and the upper surface of described rectangular magnet 15 is connected with the lower surface magnetic of the bar magnet 8 of band polytetrafluoroethylene (PTFE) overcoat.Motor 9 rotates and drives rectangular magnet 15 rotations, and rectangular magnet 15 rotates by the bar magnet 8 of magneticaction drive band polytetrafluoroethylene (PTFE) overcoat again, and solvent recovery bottle 13 is the ground round-bottomed flask.Thermostat water bath 6 adopts prior art, and thermostat water bath 6 is produced by Zhengzhou Greatwall Scientific Industrial ﹠ Trading Co., Ltd., and model is DF-101s.
The specific embodiment two: present embodiment is described in conjunction with Fig. 1, the bottleneck 23 of the described concentrated bottle 7 of present embodiment diameter from top to bottom dwindles gradually, the profile that concentrates the body of bottle 7 is made up of last Rotary-table 20 and the diminishing Rotary-table 21 down of diameter that diameter increases gradually from top to bottom, the diameter that concentrates the bottle end 19 is 2cm～4cm, and the sidewall and the angle α between the horizontal plane that concentrate the following Rotary-table 21 of bottle 7 are 14 °～16 °.So be provided with, can increase the interfacial area of gas, liquid, accelerate solvent evaporates speed.Other is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 present embodiment is described, the diameter at the described concentrated bottle of the present embodiment end 19 is 3cm, and the sidewall and the angle α between the horizontal plane that concentrate the following Rotary-table 21 of bottle 7 are 15 °.So be provided with, can increase the interfacial area of gas, liquid, accelerate solvent evaporates speed.Other is identical with the specific embodiment two.
The specific embodiment four: in conjunction with Fig. 1 present embodiment is described, the described lifting support 14 of present embodiment is made up of lift adjustment knob 12, base 22, large diameter pipe 24 and narrow tube 25; The lower end of described large diameter pipe 24 and base 22 are affixed, and the lower end of described narrow tube 25 is contained in the large diameter pipe 24, and described narrow tube 25 is affixed by lift adjustment knob 12 and large diameter pipe 24, and described two geometrical clamps 11 are affixed with narrow tube 25.Simple in structure, lift adjustment convenience so is set.Other is identical with the specific embodiment one or two.
The specific embodiment five: in conjunction with Fig. 1 present embodiment is described, the external diameter of the bar magnet 8 of the described band polytetrafluoroethylene (PTFE) of present embodiment overcoat is D, 0.3cm＜D＜0.5cm.So be provided with, can reduce absorption object.Other is identical with the specific embodiment one.
The course of work is: during work, in condensed water coil pipe 4, feed condensed water by condensed water water inlet 5, close pressure-reducing valve 1, to concentrate and open vavuum pump after bottle 7 connects with vacuum chamber 2, hand did not leave and concentrated bottle 7 this moment, to prevent that concentrating bottle 7 comes off, by the height of lift adjustment knob 12 adjusting lifting supports 14, make concentrated bottle 7 reduce to thermostat water bath reposefully, the stir speed (S.S.) of appropriate regulation bar magnet at 6 the end, concentrating bottle 7 begins to concentrate, enter after the solvent evaporates in the vacuum chamber 2, after the 4 places condensation of condensed water coil pipe, splash in the solvent recovery bottle 13, treat to close vavuum pump after sample concentration is finished, bar magnet stirs, afterwards, open pressure-reducing valve 1, regulate the height of lifting support 14 by lift adjustment knob 12, to concentrate bottle 7 and unload, sample will be shifted out.
Claims (5)
1. negative pressure magnetic stirring concentrator, described concentrating instrument by magnetic agitation water-bath heater, vacuum condensing unit, solution returnable bottle (13), concentrate bottle (7), a lifting support (14), two geometrical clamps (11) and tube connector (18) and form; It is characterized in that: described magnetic agitation water-bath heater is made up of bar magnet (8), rectangular magnet (15) and the motor (9) of thermostat water bath (6), band polytetrafluoroethylene (PTFE) overcoat, and described vacuum condensing unit is made up of pressure-reducing valve (1), vacuum chamber (2) and condensed water coil pipe (4); Described vacuum chamber (2) is affixed by two geometrical clamps (11) and lifting support (14), condensed water coil pipe (4) is housed in the vacuum chamber (2), the sidewall that one end of the condensed water delivery port (3) of condensed water coil pipe (4) and an end of condensed water water inlet (5) pass vacuum chamber (2) respectively is exposed, and the condensed water delivery port (3) of condensed water coil pipe (4) is positioned at the top of condensed water water inlet (5), the sidewall of vacuum chamber (2) upper end is provided with the bleeding point (10) that is connected with vavuum pump, on the exhaust outlet (16) of vacuum chamber (2) upper end pressure-reducing valve (1) is housed, on the taphole (17) of vacuum chamber (2) lower end solution returnable bottle (13) is housed, the lower end sidewall that one end of described tube connector (18) passes vacuum chamber (2) is communicated with vacuum chamber (2), the other end of tube connector (18) is contained on the bottleneck that concentrates bottle (7) and with concentrated bottle (7) and is communicated with, described concentrated bottle (7) places the bottom in the thermostat water bath (6), the bar magnet (8) of band polytetrafluoroethylene (PTFE) overcoat places and concentrates in the bottle (7), motor (9) is packed in the below of thermostat water bath (6) inner bottom part, the output shaft of motor (9) is connected with the lower surface of rectangular magnet (15), and the upper surface of described rectangular magnet (15) is connected with the lower surface magnetic of the bar magnet (8) of band polytetrafluoroethylene (PTFE) overcoat.
2. according to the described negative pressure magnetic stirring concentrator of claim 1, it is characterized in that: the bottleneck (23) of described concentrated bottle (7) diameter from top to bottom dwindles gradually, the profile that concentrates the body of bottle (7) is made up of last Rotary-table (20) and the diminishing Rotary-table (21) down of diameter that diameter increases gradually from top to bottom, the diameter that concentrates the bottle end (19) is 2cm～4cm, and the sidewall and the angle between the horizontal plane (α) that concentrate the following Rotary-table (21) of bottle (7) are 14 °～16 °.
3. according to the described negative pressure magnetic stirring concentrator of claim 2, it is characterized in that: the diameter of the described concentrated bottle end (19) is 3cm, and the sidewall and the angle between the horizontal plane (α) that concentrate the following Rotary-table (21) of bottle (7) are 15 °.
4. according to claim 1 or 2 described negative pressure magnetic stirring concentrators, it is characterized in that: described lifting support (14) is made up of lift adjustment knob (12), base (22), large diameter pipe (24) and narrow tube (25); The lower end of described large diameter pipe (24) and base (22) are affixed, the lower end of described narrow tube (25) is contained in the large diameter pipe (24), described narrow tube (25) is affixed by lift adjustment knob (12) and large diameter pipe (24), and described two geometrical clamps (11) are affixed with narrow tube (25).
5. according to the described negative pressure magnetic stirring concentrator of claim 1, it is characterized in that: the external diameter of the bar magnet (8) of described band polytetrafluoroethylene (PTFE) overcoat is D, 0.3cm＜D＜0.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100721517A CN101564701B (en) | 2009-06-01 | 2009-06-01 | Negative pressure magnetic stirring concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100721517A CN101564701B (en) | 2009-06-01 | 2009-06-01 | Negative pressure magnetic stirring concentrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101564701A CN101564701A (en) | 2009-10-28 |
| CN101564701B true CN101564701B (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100721517A Expired - Fee Related CN101564701B (en) | 2009-06-01 | 2009-06-01 | Negative pressure magnetic stirring concentrator |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128740B (en) * | 2010-11-22 | 2015-12-16 | 中国科学院东北地理与农业生态研究所 | A kind of high-efficiency negative-pressure magnetic stirring concentration device |
| CN102175507B (en) * | 2010-12-31 | 2013-10-16 | 国家海洋环境监测中心 | On-line concentration system suitable for large-flow enriching instrument |
| CN103207131A (en) * | 2012-12-03 | 2013-07-17 | 青岛同春石油仪器有限公司 | Portable electronic motor viscometer |
| CN104181028A (en) * | 2014-07-09 | 2014-12-03 | 复旦大学 | Device capable of achieving automatic high-flux volatilization of small-volume solvent |
| CN107290202B (en) * | 2016-03-31 | 2021-05-18 | 庞英明 | Nitrogen blowing concentrator |
| CN108854127A (en) * | 2018-08-15 | 2018-11-23 | 于家丰 | Condenser pipe and distilling apparatus |
| CN109357912A (en) * | 2018-09-03 | 2019-02-19 | 浙江杭海环保科技有限公司 | A kind of petrochemical industry pollution flux highly effective gathering device |
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2009
- 2009-06-01 CN CN2009100721517A patent/CN101564701B/en not_active Expired - Fee Related
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| CN101564701A (en) | 2009-10-28 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jian Inventor after: Zhang Yuxia Inventor after: Wang Guoping Inventor after: Wang Chaoying Inventor before: Wang Jian |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG JIAN TO: WANG JIAN ZHANG YUXIA WANG GUOPING WANG CHAOYING |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20120601 |