CN208839063U - A kind of rotary evaporator - Google Patents
A kind of rotary evaporator Download PDFInfo
- Publication number
- CN208839063U CN208839063U CN201821510435.0U CN201821510435U CN208839063U CN 208839063 U CN208839063 U CN 208839063U CN 201821510435 U CN201821510435 U CN 201821510435U CN 208839063 U CN208839063 U CN 208839063U
- Authority
- CN
- China
- Prior art keywords
- fixed
- shell
- groove
- sleeve
- protective shell
- 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
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of rotary evaporators, belong to evaporation equipment field.A kind of rotary evaporator includes bottom plate, it is fixed on the hand-rail type jack of the upper surface of bottom plate, the water-bath being fixed at the top of hand-rail type jack, in the opposite two sides of water-bath, the upper surface of bottom plate is respectively fixed with starting stave, second riser, it is connected between starting stave and the second riser by the first transverse slat, block cover is fixed on first transverse slat, block cover include both ends open lower shell and with the upper shell that is connected at the top of lower shell, it is fitted closely on the outside of the inside sidewalls of lower shell and the top sidewall of protective shell, the side wall of protective shell can be slided up and down along the side wall of lower shell, horizontally disposed evaporative flask is equipped in block cover, the top of starting stave is fixed with motor, the output shaft of motor is connected with horizontal shaft, one end of evaporative flask is fixedly connected with the tip of the axis is turned.A kind of rotary evaporator disclosed by the utility model can steadily adjust the height of water-bath.
Description
Technical field
The utility model relates to evaporation equipment fields, and in particular to a kind of rotary evaporator.
Background technique
Rotary evaporator is mainly used for the concentrations of the industries such as medicine, chemical industry and bio-pharmaceuticals, crystallization, drying, separation and molten
Matchmaker's recycling.Its principle is heated at constant temperature under vacuum conditions, makes revolving bottle constant speed rotary, and material is thin in bottle wall formation large area
Film, high-efficiency evaporating.Solvent steam is cooling through highly-efficient glass condenser, is recovered in receiving flask, greatly improves evaporation efficiency.Especially
It is applicable in the concentration purification for holding the biological products of easy decomposition and degeneration to high temperature.However existing most of rotary evaporators are using adjusting
The mode of the height of evaporative flask is immersed into the depth heated in liquid to adjust evaporative flask, to change the disengagement area of evaporative flask
And blowing, charging, this kind of rotary evaporator have that complicated for operation, evaporative flask is easy to happen swing.
Utility model content
In order to overcome the drawbacks of the prior art, the technical problem to be solved by the utility model is to propose that a kind of rotation is steamed
Device is sent out, changes the disengagement area of evaporative flask by adjusting the height of water-bath, can effectively avoid directly adjusting the evaporation
The height bring of bottle moves jiggly problem
For this purpose, the utility model uses following technical scheme:
The utility model provides a kind of rotary evaporator, described including bottom plate, the water-bath above the bottom plate
The upper surface of bottom plate is fixed with hand-rail type jack, and the hand-rail type jack includes jack ontology and for adjusting described thousand
The rocking handle of jin top ontology lifting, the rocking handle are arranged in the jack ontology, the water-bath along the width direction of the bottom plate
Pot includes the pot body for being fixed on the protective shell of the jack body upper surface and being embedded in the protective shell;The bottom plate
Upper surface be respectively fixed with starting stave, the second riser in the opposite two sides of the protective shell, the starting stave with it is described
It is connected between second riser by the first transverse slat, is fixed with block cover on first transverse slat, the block cover includes both ends open
Lower shell and the upper shell being connected to the lower shell top, the lower shell are in circular ring shape, and the upper shell is in hollow half
Spherical, the upper shell is opening down to be fixed on first transverse slat and is partially protrude through first transverse slat upper surface, described
It is fitted closely on the outside of the top sidewall of the inside sidewalls of lower shell and the protective shell, the side wall of the protective shell can be under described
The side wall of cylinder slides up and down, and horizontally disposed evaporative flask is equipped in the block cover;The top of the starting stave is in described
It is fixed with lateral motor below one transverse slat, the output shaft of the motor is connected with horizontal shaft, one end of the evaporative flask
It is fixedly connected with the tip of the axis that turns, the other end of the evaporative flask is connected with two access rotary joints, second riser
On be fixed with condenser, be fixed on the bottom plate collector being connected to the condenser bottom, solution tank and with it is described
Solution tank connection hydraulic pump, the condenser, the hydraulic pump pass through a pipeline respectively with the two accesses rotary joint
One access connection.
In the preferable embodiment of the utility model, the outside projection in middle part of the evaporative flask side wall forms cricoid convex
Platform, the boss set to the concave to form cricoid first groove far from a side surface of the evaporative flask side wall, and described first is recessed
Plane locating for the annulus that slot is formed is vertical with the shaft, the water of the center of circle of the annulus of first groove formation in the shaft
On flat extended line, vertical first sleeve is fixed in the middle part of the lower surface of the lower shell roof, the first sleeve top is close
Envelope, lower ending opening, are movably equipped with the first vertical support column in the first sleeve, the bottom wall of the first sleeve and described the
The upper end of one support column is connected by the first buffer spring being set in the first sleeve, and the lower end of first support column is convex
If forming arc bump, and the lower surface of the arc bump supports bottom wall and the arc bump and the institute of first groove
The first groove is stated to be slidably matched.
In the preferable embodiment of the utility model, in the opposite two sides of the protective shell, the side wall of the protective shell
Outside is respectively fixed with the first horizontal support plate, and the outside projection in the end of each first support plate forms guiding projection,
The upper surface of the bottom plate corresponds to each guiding projection and is respectively and fixedly provided with a vertical guide plate, and each guide plate is along perpendicular
Histogram is arranged in the corresponding guide groove to guide groove, each guiding projection sliding is offered.
In the preferable embodiment of the utility model, in the opposite two sides of the protective shell, in first support plate
Top, the side-wall outer side of the protective shell is respectively fixed with the second horizontal support plate, under each second support plate
Surface is fixed with the second vertical support column, and the upper surface of each guide plate is fixed with vertical second sleeve, and described second
The upper end of sleeve is equipped with the opening of tightening, in the corresponding second sleeve of lower end insertion of each second support column, described the
The upper end of two support columns is connect with the bottom wall of the second sleeve by the second buffer spring being set in the second sleeve.
In the preferable embodiment of the utility model, scale is equipped on the guide plate along the vertical direction.
In the preferable embodiment of the utility model, it is concaved in the middle part of the lower surface of the protective shell in T
Second groove of type, the upper surface of the jack ontology are fixed with the compatible with second groove first fixed convex block,
Described first fixed convex block is arranged in second groove.
In the preferable embodiment of the utility model, it is concaved in the middle part of the upper surface of the bottom plate T-shaped
Third groove, the lower surface of the jack ontology is fixed with the compatible with the third groove second fixed convex block, described
Second fixed convex block is arranged in the third groove.
The utility model has the following beneficial effects:
The hand-rail type jack is arranged for adjusting the water-bath in a kind of rotary evaporator provided by the utility model
Height change the disengagement area of the evaporative flask, hand-rail type jack have easy to operate, flexibility and reliability, it is laborsaving, adjust
Stable feature effectively avoids directly adjusting institute compared to the disengagement area for adjusting evaporative flask by the height for adjusting evaporative flask
The height bring for stating evaporative flask moves jiggly problem;The block cover and the water-bath cooperatively form confined space, will
The evaporative flask is placed in sealing space, avoids heat loss too fast, is improved reaction efficiency, is economized on resources, when operator's hand
When shaking the rocking handle of the hand-rail type jack, move up or down the protective shell along the inside sidewalls of the lower shell,
Keep the water-bath movement more stable, while avoiding the water-bath double swerve.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the rotary evaporator provided in the utility model embodiment;
Fig. 2 be hand-rail type jack, guide plate, water-bath cooperation structural schematic diagram;
The enlarged drawing of A in Fig. 3 Fig. 1.
In figure: 100, bottom plate;101, starting stave;102, the second riser;103, the first transverse slat;104, guide plate;105,
Guide groove;106, second sleeve;107, the second buffer spring;200, water-bath;210, protective shell;211, the first support plate;
212, guiding projection;213, the second support plate;214, the second support column;220, pot body;300, hand-rail type jack;310, very heavy
Push up ontology;311, the first fixed convex block;312, the second fixed convex block;320, rocking handle;400, block cover;410, lower shell;411,
One sleeve;412, the first support column;413, the first buffer spring;414, arc bump;420, upper shell;500, evaporative flask;
501, boss;502, the first groove;510, motor;520, shaft;530, two access rotary joint;600, condenser;700, it receives
Storage;800, solution tank;900, hydraulic pump.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1 and Figure 2, a kind of rotary evaporator includes bottom plate 100, the water-bath above the bottom plate 100
200, the upper surface of the bottom plate 100 is fixed with hand-rail type jack 300, and the hand-rail type jack 300 includes jack sheet
Body 310 and the rocking handle 320 gone up and down for adjusting the jack ontology 310, width of the rocking handle 320 along the bottom plate 100
Direction is arranged in the jack ontology 310, and the water-bath 200 includes being fixed on 310 upper surface of jack ontology
Protective shell 210 and the pot body 220 being embedded in the protective shell 210 are arranged the protective shell 210 and wrap the pot body 220
It wraps up in the housing, effectively avoids shock of the pot body 220 by all angles, additionally it is possible to prevent hand from directly touching high temperature
Pot body 220, have the effect of heat-insulation scald-proof.It is stained with insulating layer in the inner wall of the protective shell 210, improves the water-bath
200 thermal insulation property.
The upper surface of the bottom plate 100 is respectively fixed with starting stave 101, in the opposite two sides of the protective shell 210
Two risers 102 are connected between the starting stave 101 and second riser 102 by the first transverse slat 103, and described first is horizontal
Block cover 400 is fixed on plate 103, the block cover 400 includes the lower shell 410 of both ends open and pushes up with the lower shell 410
The upper shell 420 of portion's connection, the lower shell 410 are in circular ring shape, and the upper shell 420 is in hollow hemisphere shape, the upper shell
420 opening down be fixed on first transverse slat 103 and be partially protrude through 103 upper surface of the first transverse slat, the lower shell
It is fitted closely on the outside of 410 inside sidewalls and the top sidewall of the protective shell 210, the side wall of the protective shell 210 can be along institute
The side wall for stating lower shell 410 slides up and down, and is equipped with horizontally disposed evaporative flask 500 in the block cover 400, the block cover is arranged
400 avoid heat loss too fast, improve reaction efficiency, economize on resources, and when the hand rocking handle 320 of operator, make described
Protective shell 210 is moved up or down along the inside sidewalls of the lower shell 410, plays guiding role, makes the water-bath 200
It moves more stable, while avoiding 200 double swerve of water-bath.
The top of the starting stave 101 is fixed with lateral motor 510, the electricity below first transverse slat 103
The output shaft of machine 510 is connected with horizontal shaft 520, the fixed company in the end of one end of the evaporative flask 500 and the shaft 520
It connects, the other end of the evaporative flask 500 is connected with two access rotary joints 530, is fixed with condenser on second riser 102
600, be fixed on the bottom plate 100 collector 700 being connected to 600 bottom of condenser, solution tank 800 and with it is described
The hydraulic pump 900 that solution tank 800 is connected to, the condenser 600, the hydraulic pump 900 are by a pipeline respectively with described two
One access of access rotary joint 530 is connected to, the pipeline that the hydraulic pump 900 is connect with the two accesses rotary joint 530
It is equipped with flowmeter, motor-driven valve, the side wall of the lower shell 410 is equipped with to be opened for what the shaft 520, the pipeline passed through
Mouthful.
The hand-rail type jack 300 is arranged for adjusting the height of the water-bath 200 in a kind of above-mentioned rotary evaporator
It spends to change the disengagement area of the evaporative flask 500, hand-rail type jack 300 has easy to operate, flexibility and reliability, laborsaving, tune
Stable feature is saved, compared to the disengagement area for adjusting evaporative flask 500 by the height for adjusting evaporative flask 500, effectively avoids adjusting
The height bring for saving the evaporative flask 500 moves jiggly problem;The block cover 400 cooperates shape with the water-bath 200
At confined space, the evaporative flask 500 is placed in sealing space, avoids heat loss too fast, improved reaction efficiency, saves money
Source makes the protective shell 210 along the lower shell when the rocking handle 320 of the hand hand-rail type jack 300 of operator
410 inside sidewalls move up or down, and play guiding role, move the water-bath 200 more stable, while avoiding institute
State 200 double swerve of water-bath.
As shown in figure 3, further, the outside projection in middle part of 500 side wall of evaporative flask forms cricoid boss 501,
The boss 501 sets to the concave to form cricoid first groove 502 far from a side surface of 500 side wall of evaporative flask, described
Plane locating for the annulus that first groove 502 is formed is vertical with the shaft 520, the circle for the annulus that first groove 502 is formed
The heart is fixed with vertical first set in the middle part of the lower surface of 410 roof of lower shell in the horizontal extension line of the shaft 520
Cylinder 411, sealing, lower ending opening at the top of the first sleeve 411 are movably equipped with vertical first in the first sleeve 411
The upper end of dagger 412, the bottom wall of the first sleeve 411 and first support column 412 is by being set to the first sleeve 411
Interior the first buffer spring 413 connection, the lower end projection of first support column 412 form arc bump 414, and the arc
The lower surface of convex block 414 supports the bottom wall of first groove 502 and the arc bump 414 and first groove 502 are sliding
Dynamic cooperation;First buffer spring 413, which is arranged, makes the arc bump 414 of 412 lower end of the first support column support the steaming
Send out the top of bottle 500, avoiding the evaporative flask 500, amplitude of fluctuation is excessive during rotation, be detached from the liquid level of the pot body 220 and
Reduce heating efficiency.
Further, the two sides opposite in the protective shell 210, the side-wall outer side of the protective shell 210 are respectively fixed with
The first horizontal support plate 211, the outside projection in the end of each first support plate 211 form guiding projection 212, the bottom
The upper surface of plate 100 corresponds to each guiding projection 212 and is respectively and fixedly provided with a vertical guide plate 104, each guide plate
104 offer guide groove 105 along the vertical direction, and each sliding of guiding projection 212 is arranged in the corresponding guide groove 105;
When the hand rocking handle 320 moves the water-bath 200 along the vertical direction, the guiding projection of first support plate 211
212 slide along the guide groove 105, improve the stability that the water-bath 200 moves.
Further, the two sides opposite in the protective shell 210, in the top of first support plate 211, the protection
The side-wall outer side of shell 210 is respectively fixed with the second horizontal support plate 213, and the lower surface of each second support plate 213 is solid
Surely there is the second vertical support column 214, the upper surface of each guide plate 104 is fixed with vertical second sleeve 106, and described
The upper end of two sleeves 106 is equipped with the opening of tightening, the corresponding second sleeve of lower end insertion of each second support column 214
In 106, the bottom wall of the upper end of second support column 214 and the second sleeve 106 is by being set in the second sleeve 106
The second buffer spring 107 connection;The movement bring punching that second buffer spring 107 buffers the water-bath 200 is set
It hits, is conducive to the steady of the movement of water-bath 200, the water-bath 200 is avoided to teetertotter.
Further, scale is equipped on the guide plate 104 along the vertical direction;For intuitively showing the protective shell 210
Adjustable range, avoid adjust distance it is excessive or very few, be conducive to improve operating efficiency.
Further, it is concaved in the middle part of the lower surface of the protective shell 210 in the second inverted T shaped groove, it is described
The upper surface of jack ontology 310 is fixed with the compatible with second groove first fixed convex block 311, and described first is fixed
Convex block 311 is arranged in second groove, and the described first fixed convex block 311 is bolted with the protective shell 210;?
During the water-bath 200 is installed, the first fixed convex block 311 of the jack ontology 310 is made to be arranged in the protection
It is easy for installation in second groove of shell 210, it is high-efficient.
Further, T-shaped third groove is concaved in the middle part of the upper surface of the bottom plate 100, it is described very heavy
The lower surface of top ontology 310 is fixed with the compatible with the third groove second fixed convex block 312, the described second fixed convex block
312 are arranged in the third groove, and the described second fixed convex block 312 is bolted with the bottom plate 100;In installation institute
When stating hand-rail type jack 300, the second fixed convex block 312 of the jack ontology 310 is made to be arranged in the of the bottom plate 100
It is easy for installation in three grooves, it is high-efficient.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to
In the range of the utility model protection.
Claims (7)
1. a kind of rotary evaporator, it is characterised in that: including bottom plate (100), the water-bath being set to above the bottom plate (100)
(200), the upper surface of the bottom plate (100) is fixed with hand-rail type jack (300), and the hand-rail type jack (300) includes
Jack ontology (310) and the rocking handle (320) gone up and down for adjusting the jack ontology (310), the rocking handle (320) is along institute
The width direction for stating bottom plate (100) is arranged in the jack ontology (310), and the water-bath (200) is described including being fixed on
The protective shell (210) of jack ontology (310) upper surface and the pot body (220) being embedded in the protective shell (210);
The upper surface of the bottom plate (100) the opposite two sides of the protective shell (210) be respectively fixed with starting stave (101),
Second riser (102) is connect between the starting stave (101) and second riser (102) by the first transverse slat (103),
Be fixed with block cover (400) on first transverse slat (103), the block cover (400) include both ends open lower shell (410) and
With the upper shell (420) being connected at the top of the lower shell (410), the lower shell (410) is in circular ring shape, the upper shell
It (420) is in hollow hemisphere shape, the upper shell (420) is opening down to be fixed on first transverse slat (103) and be partially protrude through
First transverse slat (103) upper surface, the inside sidewalls of the lower shell (410) and the top sidewall of the protective shell (210)
Outside fits closely, and the side wall of the protective shell (210) can be slided up and down along the side wall of the lower shell (410), the block cover
(400) horizontally disposed evaporative flask (500) are equipped in;
The top of the starting stave (101) is fixed with lateral motor (510) below first transverse slat (103), described
The output shaft of motor (510) is connected with horizontal shaft (520), one end and the shaft (520) of the evaporative flask (500)
End is fixedly connected, and the other end of the evaporative flask (500) is connected with two access rotary joints (530), second riser
(102) it is fixed on condenser (600), the collection being connected to the condenser (600) bottom is fixed on the bottom plate (100)
Device (700), solution tank (800) and the hydraulic pump (900) being connected to the solution tank (800), the condenser (600), institute
Hydraulic pump (900) is stated to be connected to an access of the two accesses rotary joint (530) respectively by a pipeline.
2. a kind of rotary evaporator according to claim 1, it is characterised in that: the middle part of evaporative flask (500) side wall
Outside projection is formed cricoid boss (501), a side surface of the boss (501) far from the evaporative flask (500) side wall to
It is interior recessed to form cricoid first groove (502), plane locating for the annulus that first groove (502) is formed and the shaft
(520) vertically, the center of circle for the annulus that first groove (502) is formed is described in the horizontal extension line of the shaft (520)
It is fixed with vertical first sleeve (411) in the middle part of the lower surface of lower shell (410) roof, it is close at the top of the first sleeve (411)
Envelope, lower ending opening, the first sleeve (411) is interior to be movably equipped with vertical the first support column (412), the first sleeve
(411) upper end of bottom wall and first support column (412) passes through the first buffering elastic in the first sleeve (411)
The lower end projection of spring (413) connection, first support column (412) forms arc bump (414), and the arc bump
(414) lower surface supports the bottom wall of first groove (502) and the arc bump (414) and first groove
(502) it is slidably matched.
3. a kind of rotary evaporator according to claim 1, it is characterised in that: the protective shell (210) it is opposite two
Side, the side-wall outer side of the protective shell (210) are respectively fixed with horizontal the first support plate (211), each first support plate
(211) the outside projection in end forms guiding projection (212), and the upper surface of the bottom plate (100) corresponds to each guiding
Convex block (212) is respectively and fixedly provided with a vertical guide plate (104), and each guide plate (104) offers guiding along the vertical direction
Slot (105), each guiding projection (212) sliding are arranged in the corresponding guide groove (105).
4. a kind of rotary evaporator according to claim 3, it is characterised in that: the protective shell (210) it is opposite two
Side and in the top of first support plate (211), the side-wall outer side of the protective shell (210) is respectively fixed with horizontal
The lower surface of two support plates (213), each second support plate (213) is fixed with vertical the second support column (214), each institute
The upper surface for stating guide plate (104) is fixed with vertical second sleeve (106), and the upper end of the second sleeve (106), which is equipped with, receives
The corresponding second sleeve (106) of lower end insertion of tight opening, each second support column (214) is interior, second support
The upper end of column (214) and the bottom wall of the second sleeve (106) pass through the second buffering elastic in the second sleeve (106)
Spring (107) connection.
5. a kind of rotary evaporator according to claim 3, it is characterised in that: along vertical side on the guide plate (104)
To equipped with scale.
6. a kind of rotary evaporator according to claim 1, it is characterised in that: the lower surface of the protective shell (210)
Middle part is concaved in the second inverted T shaped groove, the upper surface of the jack ontology (310) be fixed with it is described second recessed
Compatible first fixed convex block (311) of slot, described first fixed convex block (311) are arranged in second groove.
7. a kind of rotary evaporator according to claim 1, it is characterised in that: in the upper surface of the bottom plate (100)
Portion is concaved with T-shaped third groove, and the lower surface of the jack ontology (310) is fixed with and the third groove phase
The second of adaptation is fixed convex block (312), and described second fixed convex block (312) are arranged in the third groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821510435.0U CN208839063U (en) | 2018-09-14 | 2018-09-14 | A kind of rotary evaporator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821510435.0U CN208839063U (en) | 2018-09-14 | 2018-09-14 | A kind of rotary evaporator |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208839063U true CN208839063U (en) | 2019-05-10 |
Family
ID=66373058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821510435.0U Expired - Fee Related CN208839063U (en) | 2018-09-14 | 2018-09-14 | A kind of rotary evaporator |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208839063U (en) |
-
2018
- 2018-09-14 CN CN201821510435.0U patent/CN208839063U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN208839063U (en) | A kind of rotary evaporator | |
CN113983792A (en) | Vacuum low-temperature continuous drying equipment | |
CN208704204U (en) | A kind of efficient water source heat pump units device | |
CN107930172A (en) | A kind of height-adjustable rotary evaporator | |
CN208205880U (en) | A kind of stirring-type heat exchanger | |
CN101935613B (en) | Multifunctional energy saving biological fermentation furnace | |
CN204693901U (en) | Heat exchange interface can the evaporimeter of automated cleaning | |
CN208795011U (en) | A kind of reaction converter residual heat using device | |
CN207984100U (en) | A kind of Packaging Box paperboard groove cutting machine feeding device | |
CN105413217A (en) | Rotary evaporator | |
CN208747656U (en) | A kind of wastewater from chemical industry environment-friendly processing unit | |
CN109692494A (en) | A kind of wood vinegar distilling apparatus | |
CN206593684U (en) | A kind of mapping equipment calibration stand for being easy to position adjustments | |
CN108977327A (en) | Liquor made from sorghum wine-distilling device | |
CN209382363U (en) | Steel tube packaging automatic stirring device | |
CN206642379U (en) | A kind of rotary evaporator of liftable regulation | |
CN209036805U (en) | A kind of binodal cylinder vulcanizing machine | |
CN207843503U (en) | Vertical seal machine for encapsulating fruit vegetable powder | |
CN207113448U (en) | A kind of sealed negative-pressure vacuum drying box | |
CN112933645B (en) | Fractionating tower reboiler | |
CN205307821U (en) | Liftable rotatory evaporator who adjusts | |
CN209420835U (en) | A kind of tea fermenting machine | |
CN208087521U (en) | Isobutene automatic dewatering unit | |
CN209984965U (en) | Water-bath heating rotary evaporator | |
CN209530164U (en) | A kind of dehydration device for polyethers |
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: 20190510 Termination date: 20190914 |