CN204582571U - The parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen - Google Patents
The parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen Download PDFInfo
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- CN204582571U CN204582571U CN201520211126.3U CN201520211126U CN204582571U CN 204582571 U CN204582571 U CN 204582571U CN 201520211126 U CN201520211126 U CN 201520211126U CN 204582571 U CN204582571 U CN 204582571U
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Abstract
The parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen, it relates to solvent evaporation technique field.The lower end of described evaporation and concentration instrument body (1) is provided with vortex viberating module (9), sealing gripper shoe (4) is provided with in evaporation and concentration instrument body (1), evaporation and concentration instrument body (1) inside is divided into lower nitrogen cavity (2) and upper sample chamber (3) by sealing gripper shoe (4), upper sample chamber (3) inside is provided with several sample cell (5), the upper end of sample cell (5) is provided with liquid-adding device (6), sample cell (5) is connected with membrane filtration system (7) through sealing gripper shoe (4), the lower end of membrane filtration system (7) is placed with receiving tube (8).It is by the ingenious combination of nitrogen, vacuum system and membrane filtration system, and utilize pressure differential as the power of nitrogen, membrane filtration system is as " automatic valve " between gas-liquid, so can avoid boiling explosion phenomenon, and limitation is less in large volume solvent concentration.
Description
Technical field:
The utility model relates to solvent evaporation technique field, is specifically related to the parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen
Background technology:
Current rotary evaporation in vacuo and nitrogen blow concentrating appts and are applied to laboratory widely as general experimental facilities, rotary evaporation mainly can be used for large volume solvent concentration, and nitrogen to blow concentrating instrument be just that the one of rotary evaporation is supplemented, small size can be used as and dissolve concentrated.But rotary evaporation in vacuo generally can only rotary evaporation sample, and efficiency is very low, and easily produces bumping, produce cross pollution.Although nitrogen blows concentrating instrument once can out 10-30 sample, ordinary circumstance liquor capacity is not more than 10ml, and reduces along with solvent volume, when stream of nitrogen gas is not enough to blow to liquid level, also needs the height regulating draw point.Whole nitrogen is blown over journey air-flow and is not controlled very well, and liquid solution is splashed, and causes sample concentration to lose.And due to the cross pollution very easily causing sample room of splashing.And after having operated, thoroughly will clean draw point, in order to avoid pollute the sample next wanting nitrogen to blow, complex operation at every turn.
Recent years, abroad for parallel evaporation also exploration, wherein more successfully have two parallel concentrating instruments of BUCHI vacuum, adopt vacuum and heat the technology combined, but because evaporation efficiency is undesirable, can not control separately, and there is the possibility of cross pollution and apply wideless; Another is with Britain Genevac ez-2 traditional vacuum concentrating instrument, and adopt vacuum, temperature and centrifugal principle combine and realize parallel evaporation, but for large volume evaporation flux or limited.
Utility model content:
The purpose of this utility model is to provide the parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen, it passes through nitrogen, heating system, the ingenious combination of vacuum system and membrane filtration system, utilize pressure differential as the power of nitrogen, membrane filtration system is as " automatic valve " between gas-liquid, when pressure differential reaches certain value, valve is opened automatically, nitrogen bubble continues to go upward to liquid level top bottom sample solution, the process of this nitrogen initiatively evenly bubbling is similar to that solvent is micro-to boil, so can boiling explosion phenomenon be avoided, avoid cross pollution, and batch large volume solvent concentration is easily carried out in this design.
In order to solve the problem existing for background technology, the utility model is by the following technical solutions: it comprises evaporation and concentration instrument body, lower nitrogen cavity, upper sample chamber, sealing gripper shoe, sample cell, liquid-adding device, membrane filtration system, receiving tube, vortex viberating module, the lower end of described evaporation and concentration instrument body is provided with vortex viberating module, sealing gripper shoe is provided with in evaporation and concentration instrument body, evaporation and concentration instrument body interior is divided into lower nitrogen cavity and upper sample chamber by sealing gripper shoe, upper sample chamber inside is provided with several sample cell, the upper end of sample cell is provided with liquid-adding device, sample cell is connected with membrane filtration system through sealing gripper shoe, receiving tube is placed in the lower end of membrane filtration system.
The right side of described lower nitrogen cavity is provided with the first valve body and the second valve body, and be provided with the 3rd valve body and triple valve on the right side of described upper sample chamber, the first valve body is connected with nitrogen gas generator, and the second valve body is connected by tube connector triple valve.
Connect condensing unit on the right side of described triple valve, the lower end of condensing unit is provided with receiving bottle, and the upper end of condensing unit is connected to vavuum pump.
Operation principle of the present utility model:
One, solvent evaporation:
1, sample cell and filtration membrane systems are connected on instrument, open nitrogen gas generator or steel cylinder, make to be full of nitrogen in the body of nitrogen module cabin, and keep certain pressure.
2, solution to be concentrated is added sample cell, cover sample hatchcover, open temperature control module, set temperature required.Close the 3rd valve body 12, open triple valve 13, open vavuum pump, start solvent evaporation and concentration.
Two, during solvent filter:
1, volume required solution is added sample cell by liquid feeding module (automatically) or manual (semi-automatic), open vortex viberating module, vortex certain hour, close;
2, closed by the first valve body, the second valve body, the 3rd valve body are opened, and triple valve is switched to connection second block channels;
3, open vavuum pump, due to pressure differential, the concentrated sample concentration liquid redissolved collects (or in sample bottle) in receiving tube by membrane filtration.
The beneficial effects of the utility model: it is by the ingenious combination of nitrogen, heating system, vacuum system and membrane filtration system, utilize pressure differential as the power of nitrogen, membrane filtration system, as " automatic valve " between gas-liquid, designs the parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen; Because this design principle is different from traditional vacuum concentrating instrument, so limitation is less in large volume solvent concentration; Because whole solvent evaporation process is all that nitrogen initiatively forms bubble and evaporates, so can avoid boiling explosion phenomenon; And consider when evaporating solvent is different with again dissolving solution temperature used, can be come by full automatic liquid feeding system (automatically) or manual liquid feeding (semi-automatic) and the system that jolts, because in concentration process, sample tube wall can remain a certain amount of target compound, can target analytes fully on sample dissolution tube wall by jolting, thus improve the rate of recovery.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Reference numeral: evaporation and concentration instrument body 1, lower nitrogen cavity 2, upper sample chamber 3, sealing gripper shoe 4, sample cell 5, liquid-adding device 6, membrane filtration system 7, receiving tube 8, vortex viberating module 9, first valve body 10, second valve body 11, the 3rd valve body 12, triple valve 13, condensing unit 14, receiving bottle 15.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with the drawings and the specific embodiments, the utility model is further elaborated.Should be appreciated that detailed description of the invention described herein only in order to explain the utility model, and be not used in restriction the utility model.
Referring to Fig. 1, this detailed description of the invention adopts lower technical scheme: it comprises evaporation and concentration instrument body 1, lower nitrogen cavity 2, upper sample chamber 3, sealing gripper shoe 4, sample cell 5, liquid-adding device 6, membrane filtration system 7, receiving tube 8, vortex viberating module 9, the lower end of described evaporation and concentration instrument body 1 is provided with vortex viberating module 9, sealing gripper shoe 4 is provided with in evaporation and concentration instrument body 1, evaporation and concentration instrument body 1 inside is divided into lower nitrogen cavity 2 and upper sample chamber 3 by sealing gripper shoe 4, upper sample chamber 3 inside is provided with several sample cell 5, the upper end of sample cell 5 is provided with liquid-adding device 6, sample cell 5 is connected with membrane filtration system 7 through sealing gripper shoe 4, receiving tube 8 is placed in the lower end of membrane filtration system 7.
The right side of described lower nitrogen cavity 2 is provided with the first valve body 10 and the second valve body 11, is provided with the 3rd valve body 12 and triple valve 13, first valve body 10 is connected with nitrogen gas generator on the right side of described upper sample chamber 3, and the second valve body 11 is connected by tube connector triple valve 13.
Connect condensing unit 14 on the right side of described triple valve 13, the lower end of condensing unit 14 is provided with receiving bottle 15, and the upper end of condensing unit 14 is connected to vavuum pump.
Operation principle of the present utility model:
One, solvent evaporation:
1, sample cell and filtration membrane systems are connected on instrument, open nitrogen gas generator or steel cylinder, make to be full of nitrogen in the body of nitrogen module cabin, and keep certain pressure.
2, solution to be concentrated is added sample cell, cover sample hatchcover, open temperature control module, set temperature required.Close the 3rd valve body 12, open triple valve 13, open vavuum pump, start solvent evaporation and concentration.
Two, during solvent filter:
1, volume required solution is added sample cell by liquid feeding module (automatically) or manual (semi-automatic), open vortex viberating module, vortex certain hour, close;
2, closed by the first valve body 10, the second valve body 11, the 3rd valve body 12 are opened, and threeway triple valve 13 is switched to connection second valve body 11 path;
3, open vavuum pump, due to pressure differential, the concentrated sample concentration liquid redissolved collects (or in sample bottle) in receiving tube by membrane filtration.
The beneficial effects of the utility model: it is by the ingenious combination of nitrogen, heating system, vacuum system and membrane filtration system, utilize pressure differential as the power of nitrogen, membrane filtration system, as " automatic valve " between gas-liquid, designs the parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen; Because this design principle is different from traditional vacuum concentrating instrument, so limitation is less in large volume solvent concentration; Because whole solvent evaporation process is all that nitrogen initiatively forms bubble and evaporates, so can avoid boiling explosion phenomenon; And consider when evaporating solvent is different with again dissolving solution temperature used, can be come by full automatic liquid feeding system (automatically) or manual liquid feeding (semi-automatic) and the system that jolts, because in concentration process, sample tube wall can remain a certain amount of target compound, can target analytes fully on sample dissolution tube wall by jolting, thus improve the rate of recovery.
The above is only in order to illustrate the technical solution of the utility model and unrestricted, other amendment (as increased other intelligent objects such as level sensing module) that those of ordinary skill in the art make the technical solution of the utility model or equivalent replacement, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. the parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen, it is characterized in that it comprises evaporation and concentration instrument body (1), lower nitrogen cavity (2), upper sample chamber (3), sealing gripper shoe (4), sample cell (5), liquid-adding device (6), membrane filtration system (7), receiving tube (8), vortex viberating module (9), the lower end of described evaporation and concentration instrument body (1) is provided with vortex viberating module (9), sealing gripper shoe (4) is provided with in evaporation and concentration instrument body (1), evaporation and concentration instrument body (1) inside is divided into lower nitrogen cavity (2) and upper sample chamber (3) by sealing gripper shoe (4), upper sample chamber (3) inside is provided with several sample cell (5), the upper end of sample cell (5) is provided with liquid-adding device (6), sample cell (5) is connected with membrane filtration system (7) through sealing gripper shoe (4), receiving tube (8) is placed in the lower end of membrane filtration system (7).
2. the full-automatic or parallel evaporation and concentration instrument of semi-automatic vacuum nitrogen according to claim 1, it is characterized in that the right side of described lower nitrogen cavity (2) is provided with the first valve body (10) and the second valve body (11), described upper sample chamber (3) right side is provided with the 3rd valve body (12) and triple valve (13), first valve body (10) is connected with nitrogen gas generator, and the second valve body (11) is connected by tube connector triple valve (13).
3. the full-automatic or parallel evaporation and concentration instrument of semi-automatic vacuum nitrogen according to claim 2, it is characterized in that described triple valve (13) right side connects condensing unit (14), the lower end of condensing unit (14) is provided with receiving bottle (15), and the upper end of condensing unit (14) is connected to vavuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211126.3U CN204582571U (en) | 2015-04-08 | 2015-04-08 | The parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211126.3U CN204582571U (en) | 2015-04-08 | 2015-04-08 | The parallel evaporation and concentration instrument of full-automatic or semi-automatic vacuum nitrogen |
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| CN204582571U true CN204582571U (en) | 2015-08-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722092A (en) * | 2015-04-08 | 2015-06-24 | 张凤鸿 | Automatic or semi automatic vacuum nitrogen parallel evaporation concentrating meter |
| CN109932230A (en) * | 2019-03-29 | 2019-06-25 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of nitrate reduction instrument and its application method |
-
2015
- 2015-04-08 CN CN201520211126.3U patent/CN204582571U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722092A (en) * | 2015-04-08 | 2015-06-24 | 张凤鸿 | Automatic or semi automatic vacuum nitrogen parallel evaporation concentrating meter |
| CN109932230A (en) * | 2019-03-29 | 2019-06-25 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of nitrate reduction instrument and its application method |
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