CN206167949U - Rotary evaporator - Google Patents
Rotary evaporator Download PDFInfo
- Publication number
- CN206167949U CN206167949U CN201621181495.3U CN201621181495U CN206167949U CN 206167949 U CN206167949 U CN 206167949U CN 201621181495 U CN201621181495 U CN 201621181495U CN 206167949 U CN206167949 U CN 206167949U
- Authority
- CN
- China
- Prior art keywords
- piston
- safety flack
- water
- rotary evaporators
- liquid outlet
- 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
Abstract
The utility model discloses a rotary evaporator belongs to the chemical experimental instruments field, aims at providing the rotary evaporator that an automation discharged suck -back sewage, its technical scheme as follows, including vacuum pump, rotary evaporator, water -bath, be equipped with safety bottle between vacuum pump and the rotary evaporator, last extraction opening, exhaust tube and the liquid outlet of being equipped with of safety bottle, liquid outlet department is equipped with the valve body, is equipped with the passageway in the valve body, is equipped with the piston that blocks up the passageway in the passageway, is equipped with the spring on the piston, and the one end fixed connection that the piston was kept away from to the spring is in the safety bottle bottom, and the one end that safety bottle was kept away from to the piston is connected with the fly rod, and the one end that the piston was kept away from to the fly rod is equipped with the floater.
Description
Technical field
The utility model is related to a kind of chemical experimental instrument field, more particularly to a kind of anti-suck Rotary Evaporators.
Background technology
Rotary Evaporators are primarily used at present the industries such as chemical industry, medicine, food, biology, and rotary evaporimeter is using each
The different boiling point of composition separates liquid mixture and solution.At present, the Rotary Evaporators basic element of character is revolving bottle, snakelike condensation
Pipe, vacuum pump using circulatory water, receiving bottle and electric rotating machine, Rotary Evaporators inner vacuum is that rotation is steamed by vacuum pump using circulatory water
Send out the mode of instrument pumping to realize, the method exist certain potential safety hazard, i.e. water pump in vacuum due to having a power failure,
What mechanical breakdown or human operational error caused quits work accidentally, due to the vacuum inside Rotary Evaporators by water pump
Sewage can rapid suck-back enter in Rotary Evaporators, because its own does not have any suck-back device, concentrated product can be caused to be subject to
Pollution even sets off an explosion.
The Chinese patent of Application No. 201320456455.5 discloses a kind of Rotary Evaporators of anti-suck, and it includes true
Empty pump and Rotary Evaporators, it is characterised in that：Safety flack, safety flack body are additionally provided between vavuum pump and Rotary Evaporators
Bleeding point is provided with, bottleneck is provided with exhaust tube, and the vavuum pump is connected by vacuum tube with the bleeding point of safety flack, the rotation
The condenser pipe for turning evaporimeter is connected by vacuum tube with the exhaust tube of safety flack, and described safety flack bottleneck is plugged with sealing-plug,
Exhaust tube and the breather pipe with cock are inserted with sealing-plug, described safety flack bottom of bottle is provided with the liquid outlet with cock.The practicality
New patent is provided for the safety flack of anti-suck, when water pump is shut down accidentally, sewage between Rotary Evaporators and vacuum pump
Directly Rotary Evaporators polluted product will not be entered by suck-back, but first be sucked in safety flack, safety flack can play buffering well
Effect, but occur after suck-back if processed without staff, can suck-back and safety flack always capacity be it is certain,
After safety flack is full of by sewage, sewage still can be entered in Rotary Evaporators, pollute the product in revolving bottle.
Utility model content
The purpose of this utility model is to provide a kind of Rotary Evaporators, and it has anti-suck and automatic-discharging suck-back sewage
Advantage.
Above-mentioned technical purpose of the present utility model technical scheme is that, a kind of Rotary Evaporators,
Including vavuum pump, Rotary Evaporators, water-bath, safety flack, the safety flack are provided between the vavuum pump and Rotary Evaporators
Side wall be provided with bleeding point, the bleeding point is connected with vavuum pump, and safety flack top is provided with exhaust tube, the exhaust tube with
Rotary Evaporators are connected, and the bottom of the safety flack is provided with liquid outlet, and the liquid outlet is on same central shaft with exhaust tube,
The liquid outlet is provided with valve body, and passage is provided with the valve body, the piston of blocking channel is provided with the passage, on the piston
The larger position in portion is less than channel internal diameter, the piston with diameter greater than outside diameter of passage, the diameter of the piston lower portion smaller part position
Be provided with spring, the spring is fixedly connected on safety flack bottom away from one end of piston, the piston away from safety flack one
End is connected with fly rod, and the fly rod is provided with ball float, the safety flack away from one end of piston and is provided with spacing below ball float
Groove, the fly rod passes through stopper slot.
By adopting above-mentioned technical proposal, piston is completely sealed off out in Rotary Evaporators in the condition of normal use
Liquid mouth, it is ensured that system is air tight；When vavuum pump shuts down generation suck-back accidentally, safety flack can make sewage first be inhaled into safety flack
In, obtain temporary transient buffering；When sewage is constantly gathered in safety flack, sewage is more than ball float and is connected to floating to the buoyancy of ball float
On ball during the gravity of other objects, ball float is moved up, so as to the piston for driving the fly rod other end is also moved up away from going out liquid
Mouthful, it is automatically drained out the sewage in safety flack.After water level is reduced in safety flack, ball float declines, and piston also descends therewith general who has surrendered
Liquid outlet is clogging, while the spring on piston is drawn high in piston uphill process, spring will be returned to original state and also can
Piston is pulled down, makes piston return to the state for blocking liquid outlet.Staff does not need manually opened liquid outlet, pacifies after suck-back
Full bottle can be automatically drained out sewage.
The utility model is further arranged to：The ball float is provided with connecting rod away from one end of fly rod, in the connecting rod
The sealing block of seal gas extraction duct is provided with, the sealing block is cylindrical groove, there is hemispherical seal in cylindrical groove.
By adopting above-mentioned technical proposal, connecting rod is driven to move upwards during ball float is moved up, while connecting
Sealing block on extension bar is also moved up, and sealing block hemispherical seal can be filled in exhaust tube and fitted with pumping inside pipe wall,
The side wall of sealing block is closely sealed with pumping pipe outer wall, blocks exhaust tube, Rotary Evaporators system is separated with safety flack system.
The utility model is further arranged to：Stopper slot, the connection also are provided with above ball float in the safety flack
Bar is through the stopper slot above ball float.
Stopper slot is passed through, spacing effect is played to connecting rod, will not taken out by adopting above-mentioned technical proposal, connecting rod
Shift when gas or suck-back, connecting rod and exhaust tube is kept on the same axis.
The utility model is further arranged to：The liquid outlet and exhaust tube port are designed with sealing ring.
Sealing effectiveness is effectively improved by adopting above-mentioned technical proposal, sealing ring, gas leakage is prevented.
The utility model is further arranged to：Water-level detecting head, the water-level detecting head connection are provided with the safety flack
There is connecting line, the connecting line is connected with alarm away from one end of water-level detecting head, and the alarm is arranged on safety flack
On outer wall.
By adopting above-mentioned technical proposal, when the water level in safety flack reaches water-level detecting head, there is alarm, can
To remind staff to come to process, Rotary Evaporators are reverted to into the state of normal work.
The utility model is further arranged to：Arc protection network, the protection mesh portions are provided with the water-bath opening
In water-bath water surface lower section.
By adopting above-mentioned technical proposal, when vavuum pump is shut down accidentally, still in rotation, now system is negative for Rotary Evaporators
Pressure can be reduced constantly, and the revolving bottle connected on Rotary Evaporators can drop in water-bath from Rotary Evaporators, and protection network has
Effect ground resistance is stopped revolving bottle and is fallen into completely in water-bath, makes the water in water-bath enter polluted product in revolving bottle.
In sum, the utility model has the advantages that：Vavuum pump is shut down after generation suck-back accidentally, and safety flack can
Good cushioning effect is played, while liquid outlet effluent sewerage can be automatically opened up to the buoyancy of ball float using water, work is not required to
Personnel are manually operated.
Description of the drawings
Fig. 1 is the structural representation of embodiment of the present utility model 1；
Fig. 2 is the internal structure schematic diagram of safety flack in embodiment 1；
Fig. 3 is the structural representation in A portions in Fig. 2；
Fig. 4 is structural representation when the liquid outlet of embodiment 1 is opened；
Fig. 5 is the internal structure schematic diagram of safety flack in embodiment 2；
Fig. 6 is the structural representation in B portions in Fig. 2；
Fig. 7 is the structural representation in C portions in Fig. 2；
Fig. 8 is structural representation when the liquid outlet of embodiment 2 is opened
Fig. 9 is the structural representation of embodiment of the present utility model 3；
Figure 10 is the internal structure schematic diagram of safety flack in embodiment 3.
In figure, 1, vavuum pump；2nd, Rotary Evaporators；3rd, water-bath；31st, arc protection network；4th, safety flack；41st, bleeding point；
42nd, exhaust tube；43rd, liquid outlet；44th, water-level detecting head；441st, connecting line；442nd, alarm；5th, valve body；51st, passage；52nd, it is living
Plug；53rd, spring；6th, fly rod；61st, ball float；62nd, connecting rod；63rd, sealing block；7th, stopper slot；8th, sealing ring；9th, condenser pipe；10、
Receiving bottle；11st, revolving bottle；12nd, whirligig；13rd, support.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：A kind of Rotary Evaporators, as shown in figure 1, including vavuum pump 1, Rotary Evaporators 2, water-bath 3, vacuum
Safety flack 4 is provided between pump 1 and Rotary Evaporators 2, the side wall of safety flack 4 is provided with bleeding point 41, and bleeding point 41 connects with vavuum pump 1
Logical, the top of safety flack 4 is provided with exhaust tube 42, and vavuum pump 1 is vacuum pump using circulatory water 1, and Rotary Evaporators 2 include condenser pipe 9, receive
Bottle 10, revolving bottle 11, whirligig 12 and support 13, condenser pipe 9 is serpentine condenser, and its upper and lower ends has respectively two to open
Mouthful, the opening of upper end is connected with the exhaust tube 42 on safety flack 4, the opening connection receiving bottle 10 of lower end, under the side wall of condenser pipe 9
End is additionally provided with inclined opening and is fixedly connected with whirligig 12, and the upper and lower of the side wall of condenser pipe 9 also has respectively for condensation
The opening of the turnover of water, condenser pipe 9 and whirligig 12 are fixed on support 13, revolving bottle 11 and can drive its rotate rotation
Device 12 connects, and revolving bottle 11 is located in water-bath 3.
As shown in Figures 2 and 3, the bottom of safety flack 4 is provided with liquid outlet 43, and liquid outlet 43 is in same center with exhaust tube 42
On axle, liquid outlet 43 is provided with valve body 5, valve body 5 and is provided with passage 51, passage 51 piston 52 for being provided with blocking channel 51, piston
With diameter greater than the external diameter of passage 51, the diameter of the bottom smaller part position of piston 52 is less than the internal diameter of passage 51 and not for the larger position in 52 tops
Disconnected to reduce, the length of the bottom of piston 52 is more than the depth of passage 51, and the lower end of piston 52 can seal up liquid outlet 43, piston 52
Spring 53 is provided with, spring 53 is fixedly connected on the bottom of safety flack 4 away from one end of piston 52, and piston 52 is away from safety flack 4
One end is connected with fly rod 6, and fly rod 6 is provided with ball float 61, safety flack 4 away from one end of piston 52 and is provided with limit in the lower section of ball float 61
Position groove 7, fly rod 6 passes through stopper slot 7.
In the present embodiment, in the case of the normal use of Rotary Evaporators 2, the top of piston 52 is closely sealed with passage 51,
The bottom of piston 52 is closely sealed with liquid outlet 43, and piston 52 completely seals off liquid outlet 43, it is ensured that safety flack 4 is air tight；Work as vacuum
When pump 1 is shut down accidentally, there is larger pressure reduction, atmospheric pressure in the state due in Rotary Evaporators 2 being negative pressure with external atmosphere pressure
Recirculated water in water circulating pump can be squeezed into Rotary Evaporators 2.If staff does not have found vacuum pump using circulatory water 1 not
Careful to quit work, suck-back phenomenon can occur always till system connection air.Between vavuum pump 1 and Rotary Evaporators 2
Arranging safety flack 4 can be such that sewage is first inhaled in safety flack 4, obtain temporary transient buffering；As shown in figure 4, when sewage is in safety
Constantly gather in bottle 4, when sewage is more than ball float 61 and is connected to the gravity of other objects on ball float 61 to the buoyancy of ball float 61, float
Ball 61 is moved up, so as to the piston 52 for driving the other end of fly rod 6 is also moved up away from liquid outlet 43, piston 52 and liquid outlet
Gap is produced between 43, allows the sewage in safety flack 4 to be automatically drained out safety flack 4, piston 52 drives during rising
The spring 53 that the bottom of piston 52 is connected to safety flack 4 is pulled up, and produces deformation.
Sewage from liquid outlet 43 discharge while, after water level is reduced in safety flack 4, sewage is to the buoyancy of ball float 61 less than floating
With when being connected to the gravity of other objects on ball float 61, ball float 61 declines ball 61, and piston 52 also declines therewith, while on piston 52
Spring 53 to be returned to original state and also pull down in piston 52, make piston 52 return to the state for blocking liquid outlet 43.Work
Personnel need not open liquid outlet 43, and safety flack 4 can be automatically drained out sewage after suck-back, reduce the operating procedure of staff.
Embodiment 2：A kind of Rotary Evaporators, be with the difference of embodiment 1, as illustrated in figs. 5-7, ball float 61 away from
One end of fly rod 6 is provided with connecting rod 62, and connecting rod 62 is provided with the sealing block 63 of seal gas extraction duct 42, and sealing block 63 is cylinder
The structure of groove, there is hemispherical seal in cylindrical groove, the hemispherical seal of sealing block 63 is injected after exhaust tube 42, sealing block 63
Side wall be closely adhered on the outer wall of exhaust tube 42.Stopper slot 7, connecting rod 62 are provided with safety flack 4 in the top of ball float 61
Through the stopper slot 7 of the top of ball float 61, liquid outlet 43 and exhaust tube 42 are designed with sealing ring 8.
In the present embodiment, it is dirty as shown in figure 8, when vavuum pump 1 is shut down accidentally, sewage is constantly gathered in safety flack 4
When water is more than ball float 61 and is connected to the gravity of other objects on ball float 61 to the buoyancy of ball float 61, ball float 61 is moved up, band
While the other end of dynamic fly rod 6 blocks the piston 52 of liquid outlet 43 and also moves up away from liquid outlet 43, the other end of ball float 61
The sealing block 63 installed in connecting rod 62 also can rise, and sealing block 63 is arranged on the lower section for facing exhaust tube 42, in sealing block
During 63 rising, the hemispherical seal of sealing block 63 is injected in exhaust tube 42, and the bottom of the inner chamber of sealing block 6 gets lodged in 42 mouthfuls of exhaust tube,
Two side walls are closely sealed with pumping pipe outer wall, and exhaust tube 42 is sealed up, and make the connecting tube between Rotary Evaporators 2 and safety flack 4
Road seals up, and the inside of Rotary Evaporators 2 keeps certain negative pressure, can continue normal work.42 mouthfuls of exhaust tube and liquid outlet 43 are all
The sealing ring 8 being provided with, when piston 52 blocks liquid outlet 43 and sealing block 63 blocks exhaust tube 42 both can be very well improved
Between sealing.
The center of two stopper slots 7 in safety flack 4 is on same axis with the center of exhaust tube 42 and liquid outlet 43,
Fly rod 6 and connecting rod 62 are each passed through after stopper slot 7 so that the axle center of piston 52 and sealing block 63 can be with liquid outlet 43 and pumping
The axle center of pipe 42 is maintained on same vertical curve, the accuracy agreed with when effectively improving activity between the two.It is simultaneously spacing
Groove 7 plays spacing effect to fly rod 6 and connecting rod 62 so as to will not be floating due to negative pressure and water when pumping or suck-back
Power shakes, offsets, and causes to seal inaccurate problem.
Embodiment 3：A kind of Rotary Evaporators, be with the difference of embodiment 2, as shown in Figures 9 and 10, water-bath 3
Arc protection network 31 is provided with opening, protection network 31 is partially in the water surface of water-bath 3 lower section.Water-level detecting is provided with safety flack 4
44, water-level detecting head 44 is connected with connecting line 441, and connecting line 441 is connected with alarm away from one end of water-level detecting head 44
442, alarm 442 is arranged on the outer wall of safety flack 4.
In the present embodiment, when vavuum pump 1 is shut down accidentally, Rotary Evaporators 2 still in rotation, now Rotary Evaporators 2
Interior negative pressure can be reduced, the revolving bottle 11 connected on Rotary Evaporators 2 due in bottle liquid cross focus on rotation during can be from
Drop on Rotary Evaporators 2 into water-bath 3, protection network 31 plays protective action to revolving bottle 11, can effectively prevent revolving bottle
11 fall into after water-bath 3, and bottleneck is maintained on the water surface, the water in water-bath 3 is not entered in revolving bottle 11 from bottleneck, protection
Product in revolving bottle 11 is not contaminated.
Water-level detecting head 44 is placed at the liquid level that sewage can be reached when ball float 61 can float, when dirty in safety flack 4
When water floats ball float 61, water-level detecting head 44 monitors sewage, piston 52 be lifted open the effluent sewerage of liquid outlet 43 when
Wait, alarm is sent by alarm 442, notify that staff, vacuum pump using circulatory water 1 are in improper working condition, remind
Staff comes to process.
Specific implementation process：When using, the piston 52 of liquid outlet 43 is stoppered, the ON cycle that switches on power water vavuum pump 1
Afterwards, revolving bottle 11 is connected to whirligig 12, opens whirligig 12, and whirligig 12 drives revolving bottle 11 to rotate, opens water
Bath 3 and condensed water, Rotary Evaporators 2 start concentration.
When vacuum pump using circulatory water 1 in vacuum due to having a power failure, mechanical breakdown or human operational error cause not
Careful to quit work, the recirculated water in vacuum pump using circulatory water 1 can be entered in safety flack 4, when sewage exists rapidly from the suck-back of bleeding point 411
Constantly gather in safety flack 4, sewage is to the buoyancy of ball float 61 more than ball float 61 and the gravity for being connected to other objects on ball float 61
When, ball float 61 is moved up, so as to the piston 52 for driving the other end of fly rod 6 to seal up liquid outlet 43 is also moved up away from going out liquid
Mouth 43, between piston 52 and liquid outlet 43 gap is produced, and allows the sewage in safety flack 4 to exclude safety flack 4, piston 52 automatically
During rising, the spring 53 being connected to safety flack 4 with the bottom of piston 52 is pulled up, and produces deformation.It is simultaneously floating
Connecting rod 62 is driven to rise when ball 61 rises, the sealing block 63 installed in connecting rod 62 also can rise, and sealing block 63 will be taken out
Tracheae 42 is sealed up, and closes the interface channel between Rotary Evaporators 2 and safety flack 4, and the inside of Rotary Evaporators 2 keeps certain
Negative pressure, continue normal work.Meanwhile, water-level detecting head 44 detects sewage and sends alarm, and staff can come to locate immediately
Reason.Staff closes Rotary Evaporators 2, after making the connection air of Rotary Evaporators 2, reopens vacuum pump using circulatory water 1
Proceed vacuum distillation.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
Field technique personnel can make as needed the modification without creative contribution after this specification is read to the present embodiment, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (6)
1. a kind of Rotary Evaporators, including vavuum pump（1）, Rotary Evaporators（2）, water-bath（3）, the vavuum pump（1）And rotation
Turn evaporimeter（2）Between be provided with safety flack（4）, the safety flack（4）Side wall be provided with bleeding point（41）, the bleeding point（41）
With vavuum pump（1）Connection, the safety flack（4）Top is provided with exhaust tube（42）, the exhaust tube（42）With Rotary Evaporators（2）
Connection, the safety flack（4）Bottom be provided with liquid outlet（43）, the liquid outlet（43）With exhaust tube（42）In same center
On axle, it is characterized in that：The safety flack（4）Inherent liquid outlet（43）Place is provided with valve body（5）, the valve body（5）Inside it is provided with passage
（51）, the passage（51）Inside it is provided with blocking channel（51）Piston（52）, the piston（52）The larger position diameter in top
More than passage（51）External diameter, the piston（52）The diameter of bottom smaller part position is less than passage（51）Internal diameter, the piston（52）
It is provided with spring（53）, the spring（53）Away from piston（52）One end be fixedly connected on safety flack（4）Bottom, the piston
（52）Away from safety flack（4）One end be connected with fly rod（6）, the fly rod（6）Away from piston（52）One end be provided with ball float
（61）, the safety flack（4）Inherent ball float（61）Lower section be provided with stopper slot（7）, the fly rod（6）Through stopper slot（7）.
2. Rotary Evaporators according to claim 1, is characterized in that：The ball float（61）Away from fly rod（6）One end set
There is connecting rod（62）, the connecting rod（62）It is provided with seal gas extraction duct（42）Sealing block（63）, the sealing block（63）For
Cylindrical groove, sealing block（63）Inside it is provided with hemispherical seal.
3. Rotary Evaporators according to claim 2, is characterized in that：The safety flack（4）Inherent ball float（61）Top
It is provided with stopper slot（7）, the connecting rod（62）Through ball float（61）The stopper slot of top（7）.
4. Rotary Evaporators according to claim 3, is characterized in that：The liquid outlet（43）And exhaust tube（42）Port
It is designed with sealing ring（8）.
5. Rotary Evaporators according to claim 1, is characterized in that：The safety flack（4）Inside it is provided with water-level detecting head
（44）, the water-level detecting head（44）It is connected with connecting line（441）, the connecting line（441）Away from water-level detecting head（44）'s
One end is connected with alarm（442）, the alarm（442）Installed in safety flack（4）Outer wall on.
6. Rotary Evaporators according to claim 1, is characterized in that：The water-bath（3）Arc protection is provided with opening
Net（31）, the protection network（31）It is partially in water-bath（3）Water surface lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181495.3U CN206167949U (en) | 2016-11-03 | 2016-11-03 | Rotary evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181495.3U CN206167949U (en) | 2016-11-03 | 2016-11-03 | Rotary evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206167949U true CN206167949U (en) | 2017-05-17 |
Family
ID=58681894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621181495.3U Expired - Fee Related CN206167949U (en) | 2016-11-03 | 2016-11-03 | Rotary evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206167949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108926858A (en) * | 2018-05-25 | 2018-12-04 | 山东中医药大学 | A kind of Rotary Evaporators automatic burst-preventing boiling device and its application method |
-
2016
- 2016-11-03 CN CN201621181495.3U patent/CN206167949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108926858A (en) * | 2018-05-25 | 2018-12-04 | 山东中医药大学 | A kind of Rotary Evaporators automatic burst-preventing boiling device and its application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106153395A (en) | A kind of integrated sampling apparatus of subsoil water | |
| CN106825021B (en) | A kind of getting fat type soil repair system and method | |
| CN208933157U (en) | A kind of Domestic sewage treatment device | |
| CN206167949U (en) | Rotary evaporator | |
| CN106854007A (en) | A kind of water-oil separating cleaning system | |
| CN206315480U (en) | A kind of anti-suck Rotary Evaporators | |
| CN102401175B (en) | Air suction and exhaust valve for high-viscosity and large-capacity sewage | |
| CN206027351U (en) | Gas production body decontamination device is taken out in colliery | |
| CN208193713U (en) | Spherical concentrator is used in a kind of pharmacy extraction | |
| CN209611937U (en) | Anti- loss breathing circuit collecting bowl | |
| CN100352550C (en) | Liquid-concentrating instrument | |
| CN207221394U (en) | A kind of chemical machinery oil-collecting device | |
| CN207181105U (en) | Flowover-proof type urine liquid sampler | |
| CN207227226U (en) | A kind of new medical waste water processing system | |
| CN206347189U (en) | Water dispenser leak automatic water stopping mechanism | |
| CN205616608U (en) | Oil -water separating unit | |
| CN207313496U (en) | A kind of preparation system for laboratory synthesizing polycarboxylic acid esters water-reducing agent esterification polymeric monomer | |
| CN205832826U (en) | The rotary Despumation device of silk screen | |
| CN205760421U (en) | Gas producer gas station abnormal flavour centralized processor | |
| CN206529337U (en) | Combine aeration tube | |
| CN209061059U (en) | Agitating device is used in a kind of purification of novel natural gas | |
| CN105020567B (en) | Vacuum drainage ball valve | |
| CN105020568B (en) | Vacuum drainage valve | |
| CN208310721U (en) | Non-maintaining jar,precipitating | |
| CN213994924U (en) | Vacuum degassing tank |
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: 20170517 Termination date: 20201103 |