CN206483177U - A kind of anti-suck Rotary Evaporators - Google Patents
A kind of anti-suck Rotary Evaporators Download PDFInfo
- Publication number
- CN206483177U CN206483177U CN201720025422.3U CN201720025422U CN206483177U CN 206483177 U CN206483177 U CN 206483177U CN 201720025422 U CN201720025422 U CN 201720025422U CN 206483177 U CN206483177 U CN 206483177U
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- CN
- China
- Prior art keywords
- rotary
- vacuum tube
- suck
- vaccum pump
- vane vaccum
- Prior art date
- 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.)
- Expired - Fee Related
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of anti-suck Rotary Evaporators.It includes rotary-vane vaccum pump, vacuum tube and the vaporization of bulk being made up of distilling flask, condenser pipe, the exhaust tube with three-way cock and reception flask, rotary-vane vaccum pump is connected by vacuum tube with exhaust tube, and at least one non-return valve and the liquid level alarm between non-return valve and air inlet are being set on the vacuum tube at the rotary-vane vaccum pump air inlet.The utility model is simple in construction, by way of liquid non-return and alarm, prevents that liquid is back to vacuum tube, and by liquid level alarm can remind surrounding population under unattended state.The utility model ensure that the cleaning of vacuum tube in the case where preventing suck-back, improve the security of device.
Description
Technical field
The utility model belongs to distillation equipment technical field, more particularly to a kind of anti-suck Rotary Evaporators.
Background technology
Rotary Evaporators are a important laboratory apparatus, and it uses vacuum distillation operation principle, under reduced pressure, are protected
Hold distilling flask persistently to rotate, make all the time with one layer of solution liquid film in bottle wall, so as to increase disengagement area, accelerate evaporation speed
Rate, rapid evaporation easy volatile solvent can be used for the distillation of reception liquid when concentration and the chromatographic isolation of extract, can also separate
With purifying liquid phase reactor thing.The Rotary Evaporators used at present include rotary-vane vaccum pump, vacuum tube and by distilling flask, condensation
Pipe, the exhaust tube with three-way cock and the vaporization of bulk for receiving flask composition, rotary-vane vaccum pump are connected by vacuum tube and exhaust tube
Lead in succession, rotary-vane vaccum pump will be evacuated inside vaporization of bulk, so as to realize that vacuum distillation works.The problem of existing be：
In vacuum, due to factors such as power failure, mechanical breakdown or human operational errors, rotary-vane vaccum pump is caused to stop work
Make, be in now that the rapid suck-back of recycle oil in negative pressure state, rotary-vane vaccum pump enters in distilling flask inside vaporization of bulk, pollute
Experimental system, causes the failure of an experiment.
Utility model content
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of anti-suck Rotary Evaporators,
In the case of being shut down accidentally in the vavuum pump course of work, the recycle oil suck-back in rotary-vane vaccum pump is prevented to enter distilling flask
It is interior.
To achieve the above object, the utility model can use following technical proposals：
A kind of anti-suck Rotary Evaporators of the present utility model, it includes rotary-vane vaccum pump, vacuum tube and burnt by distillation
Bottle, condenser pipe, the exhaust tube with three-way cock and the vaporization of bulk for receiving flask composition, rotary-vane vaccum pump is by vacuum tube with taking out
Tracheae is connected, and is characterized in, is setting at least one inverse on the vacuum tube at the rotary-vane vaccum pump air inlet
Only valve and the liquid level alarm between non-return valve and air inlet.
In above-mentioned anti-suck Rotary Evaporators, optionally, the non-return valve and liquid level alarm are market sale
Product, purchase is convenient.
In above-mentioned anti-suck Rotary Evaporators, optionally, the vacuum tube includes the first body and the second body, the
The bleeding point of one end of one body and rotary-vane vaccum pump is connected, and the other end is connected with the first connector, built in the first connector
There is sealing ring a；Second body one end is connected with condenser pipe, and the other end is connected with the second connector, and the second connector is built-in with close
Seal b, non-return valve two ends are connected with the first connector and the second connector respectively.
In above-mentioned anti-suck Rotary Evaporators, optionally, the condenser pipe is dimroth's condensing tube.
Compared with prior art, beneficial effect is：When rotary-vane vaccum pump is shut down accidentally, due to non-return valve one-way conduction
Principle prevents recycle oil from entering in vacuum tube, and then prevents recycle oil suck-back from entering in distilling flask, it is to avoid contamination of products, significantly
The safety and reliability of Rotary Evaporators in use is improved, while triggering warning piece, experiment behaviour is reminded in time
Make the air pressure in PERSONNEL RECOVERY's vaporization of bulk.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model anti-suck Rotary Evaporators.
In figure：1-condenser pipe, 2-distilling flask, 3-reception flask, 4-Rotary Evaporators, 5-vacuum tube, 6-inverse
Only valve, 7-sealing ring, 8-rotary-vane vaccum pump, 9-cock, 10-liquid level alarm.
Embodiment
Further description is made to the utility model below in conjunction with Figure of description, embodiment is provided.
As shown in figure 1, a kind of anti-suck Rotary Evaporators, it include rotary-vane vaccum pump, vacuum tube and by distilling flask,
Condenser pipe, the exhaust tube with three-way cock and the vaporization of bulk for receiving flask composition, rotary-vane vaccum pump is by vacuum tube and pumping
Pipe is connected, and is characterized in, at least one check is being set on the vacuum tube at the rotary-vane vaccum pump air inlet
Valve and the liquid level alarm between non-return valve and air inlet.
The non-return valve and liquid level alarm are the product of market sale, and purchase is convenient.
The vacuum tube includes the first body and the second body, one end of the first body and the bleeding point of rotary-vane vaccum pump
Connection, the other end is connected with the first connector, and the first connector is built-in with sealing ring a；Second body one end is connected with condenser pipe,
The other end is connected with the second connector, and the second connector is built-in with sealing ring b, non-return valve two ends respectively with the first connector and
Two connectors are connected.
The condenser pipe is dimroth's condensing tube.
Rotary-vane vaccum pump is opened when using and vaporization of bulk carries out vacuum distillation, if meeting power-off or vacuum pump failure causes
Vavuum pump shuts down, and the recycle oil in vavuum pump can enter in the first body because of the rapid suck-back of negative pressure, be stopped by non-return valve, liquid
Level alarm is alarmed, and is now opened cock, is passed through air, vaporization of bulk internal negative pressure is then quickly reduced, treats that suck-back phenomenon is complete
It is complete to terminate, the first body is pulled down, the oil of suck-back is cleared up, then reinstalls, be continuing with.
The utility model only is elaborated by way of example above, this few example is only for illustrating principle of the present utility model
And embodiments thereof is used, rather than to limitation of the present utility model, the situation of spirit and scope of the present utility model is not being departed from
Under, those skilled in the art can also make various modifications and improvement.Therefore, all equivalent technical schemes all should belong to this reality
Limited with new category and by every claim of the present utility model.
Claims (4)
1. a kind of anti-suck Rotary Evaporators, it includes rotary-vane vaccum pump（8）, vacuum tube（5）And by distilling flask（2）, it is cold
Solidifying pipe（1）, the exhaust tube with three-way cock and receive flask（3）The vaporization of bulk of composition, rotary-vane vaccum pump（8）By vacuum tube
（5）Connected with exhaust tube, it is characterised in that close to the rotary-vane vaccum pump（8）Vacuum tube at air inlet（5）On
At least one non-return valve is set（6）And positioned at non-return valve（6）Liquid level alarm between air inlet（10）.
2. the anti-suck Rotary Evaporators according to claim 1, it is characterised in that the non-return valve（6）And liquid level warning
Device（10）It is the product of market sale.
3. the anti-suck Rotary Evaporators according to claim 1, it is characterised in that the vacuum tube（5）Including the first pipe
Body and the second body, one end of the first body and rotary-vane vaccum pump（8）Bleeding point connection, the other end is connected with the first connection
Head, the first connector is built-in with sealing ring（7a）；Second body one end and condenser pipe（1）Connection, the other end is connected with the second company
Joint, the second connector is built-in with sealing ring（7b）, non-return valve（6）Two ends coordinate with the first connector and the second connector respectively
Connection.
4. the anti-suck Rotary Evaporators according to claim 1, it is characterised in that the condenser pipe（1）For snakelike backflow
Condenser pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720025422.3U CN206483177U (en) | 2017-01-10 | 2017-01-10 | A kind of anti-suck Rotary Evaporators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720025422.3U CN206483177U (en) | 2017-01-10 | 2017-01-10 | A kind of anti-suck Rotary Evaporators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206483177U true CN206483177U (en) | 2017-09-12 |
Family
ID=59771003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720025422.3U Expired - Fee Related CN206483177U (en) | 2017-01-10 | 2017-01-10 | A kind of anti-suck Rotary Evaporators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206483177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457192A (en) * | 2021-06-12 | 2021-10-01 | 林蕾 | Intelligent vacuum device |
-
2017
- 2017-01-10 CN CN201720025422.3U patent/CN206483177U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457192A (en) * | 2021-06-12 | 2021-10-01 | 林蕾 | Intelligent vacuum device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20190110 |