CN211536547U - Pressure-reducing rotary evaporation furnace - Google Patents
Pressure-reducing rotary evaporation furnace Download PDFInfo
- Publication number
- CN211536547U CN211536547U CN201922374204.2U CN201922374204U CN211536547U CN 211536547 U CN211536547 U CN 211536547U CN 201922374204 U CN201922374204 U CN 201922374204U CN 211536547 U CN211536547 U CN 211536547U
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- China
- Prior art keywords
- evaporation furnace
- liquid
- heater
- furnace body
- evaporation
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- Expired - Fee Related
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- 238000002390 rotary evaporation Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 88
- 238000001704 evaporation Methods 0.000 claims abstract description 71
- 230000008020 evaporation Effects 0.000 claims abstract description 66
- 238000003756 stirring Methods 0.000 claims abstract description 36
- 230000006837 decompression Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a decompression rotary evaporation furnace, which belongs to the technical field of evaporation furnaces and comprises an evaporation furnace body, wherein the evaporation furnace body is provided with a heater and a rotary stirring device, and the heater is arranged at the bottom side in a cavity of the evaporation furnace body; the rotary stirring device comprises a motor, a stirring wheel and a rotating shaft, and the rotating shaft is arranged at the bottom of the evaporation furnace body and is fixedly connected in a sealing rotating manner; one end of the rotating shaft is connected with the stirring wheel in the cavity, and the other end of the rotating shaft is connected with the motor outside the cavity; the stirring wheel is a spiral diversion trench, the bottom opening of the spiral diversion trench is a liquid inlet, and the top opening is a liquid outlet. The utility model discloses a stirring wheel both can stir bottom liquid, and spiral guiding gutter can distribute liquid water conservancy diversion to the top of spiral guiding gutter again simultaneously, because the effect of centrifugal force gives off liquid to the evaporating furnace inner wall, reasonable utilization the heat on evaporating furnace inner wall upper portion, increased liquid evaporation area, improved evaporation efficiency.
Description
Technical Field
The utility model relates to an evaporation furnace technical field, concretely relates to rotatory evaporation furnace of decompression.
Background
In the use of the evaporation furnace, after the liquid is heated to the set temperature, the motor of the stirring device starts to drive the rotating rod to rotate and stir the liquid so as to increase the heat dissipation area, but the temperature of the upper part of the furnace wall of the evaporation furnace in the prior art also reaches the liquid evaporation temperature, but the upper part of the furnace wall of the evaporation furnace cannot be contacted with the liquid, so that a large amount of heat is wasted, and the heating cost is increased. In addition, when the evaporation liquid is reduced, the part of the upper part of the heater exposed out of the liquid surface is always dried, and the service life of the heater is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a decompression rotary evaporation furnace which has simple structure, can utilize the heat on the upper part of the wall of the evaporation furnace and prevent the heater from dry burning. The utility model adopts the technical scheme as follows:
a pressure-reducing rotary evaporation furnace comprises an evaporation furnace body, and is characterized in that the evaporation furnace body is provided with a heater and a rotary stirring device, wherein the heater is arranged on the bottom side in a cavity of the evaporation furnace body; the rotary stirring device comprises a motor, a stirring wheel and a rotating shaft, and the rotating shaft is arranged at the bottom of the evaporation furnace body and is fixedly connected in a sealed rotating mode; one end of the rotating shaft is connected with the stirring wheel in the cavity, and the other end of the rotating shaft is connected with the motor outside the cavity; the stirring wheel is a spiral guide groove, the bottom opening of the spiral guide groove is a liquid inlet, and the top opening is a liquid outlet.
Further, the spiral direction of the spiral guide groove is opposite to the rotation direction of the motor.
Further, the evaporation furnace body is provided with a liquid receiving tray, a liquid outlet is formed in the bottom of the liquid receiving tray, the position of the liquid outlet is matched with the installation position of the heater, and liquid flowing out of the liquid outlet is sprayed on the heater.
Further, the heater is arranged at 1/2-2/3 of the evaporation furnace body cavity.
Still further, the heater is disposed at 1/2 of the evaporation furnace body cavity.
Further, the heater is a spiral heating pipe.
Further, a liquid outlet at the top end of the spiral diversion trench is higher than the top end of the heater.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model provides a decompression evaporation furnace of spiral stirring wheel structure both can stir bottom liquid through the stirring wheel, and spiral liquid guide groove can distribute liquid water conservancy diversion to the top of spiral water conservancy diversion groove again simultaneously, because the effect of centrifugal force gives off the evaporation furnace inner wall with liquid, the heat on evaporation furnace inner wall upper portion has rationally been utilized, has increaseed the liquid evaporation area, has improved evaporation efficiency.
Furthermore, the utility model discloses still be provided with and connect the liquid tray, connect to be provided with flowing back structure on the liquid tray, will receive liquid drainage to the heater on, prevent that the heater from leaking the part dry combustion method outward, prolonged the life of heater.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic view of the structure of the evaporation furnace of the present invention
FIG. 2 is a schematic view of the structure of the stirring wheel and the rotating shaft
Wherein: 1-evaporation furnace body, 2-pressure gauge, 3-vacuum pump, 4-vacuum pump control line, 5-evaporation furnace control system, 6-liquid injection port, 7-heat preservation sleeve, 8-stop valve, 9-liquid injection pump and stop valve control line, 10-liquid injection pump, 11-liquid inlet pipeline, 12-rotary stirring device, 13-motor, 14-stirring wheel, 15-rotating shaft, 16-sensor, 17-liquid discharge port, 18-exhaust pipe, 19-liquid storage tank, 20-liquid storage tank bracket, 21-heater, 22-heater control line, 23-liquid receiving tray, and 24-evaporation furnace fixing bracket.
Detailed Description
A decompression rotary evaporation furnace comprises an evaporation furnace body 1, wherein the evaporation furnace body 1 is provided with a heater 21 and a rotary stirring device 12, and the heater 21 is arranged on the bottom side in a cavity of the evaporation furnace body 1; the rotary stirring device 12 comprises a motor 13, a stirring wheel 14 and a rotating shaft 15, wherein the rotating shaft 15 is arranged at the bottom of the evaporation furnace body 1 and is fixedly connected in a sealing and rotating way; one end of the rotating shaft 15 is connected with the stirring wheel 14 in the cavity, and the other end is connected with the motor 13 outside the cavity; the stirring wheel 14 is a spiral diversion trench, the bottom opening of the spiral diversion trench is a liquid inlet, and the top opening is a liquid outlet.
The evaporation furnace body 1 is provided with a liquid receiving tray 23, a liquid outlet is arranged at the bottom of the liquid receiving tray 23, the position of the liquid outlet is matched with the installation position of the heater 21, and liquid flowing out of the liquid outlet is sprayed on the heater 21.
The heater is arranged at 1/2-2/3 of the cavity of the evaporation furnace body 1, preferably the heater is arranged at 1/2 of the cavity of the evaporation furnace body 1.
The spiral direction of the spiral guide groove of the stirring wheel 14 is opposite to the rotation direction of the motor 13, and preferably, the spiral direction of the spiral guide groove is clockwise, and the rotation direction of the motor 13 is counterclockwise.
The spiral arrangement of the spiral diversion trench of the stirring wheel 14 should satisfy: the pitch of the spiral is 1/3-1/2, preferably 1/3; the number of spiral turns is 2.5-3.5, preferably 3.3; the external diameter of the spiral is 1/2-2/3, preferably 2/3 of the diameter of the cavity of the evaporation furnace body 1.
The longitudinal section of the spiral diversion trench is square, round or other geometric shapes, and is preferably square.
The fixed connection form between the stirring wheel 14 and the rotating shaft 15 is welding or other mechanical connection forms, and welding is preferred.
The outer side of the evaporation furnace body 1 is provided with a heat insulation sleeve 7 for heat insulation of liquid in the furnace; the bottom of the evaporation furnace body 1 is provided with a liquid outlet 17 for discharging liquid stored in the evaporation furnace body 1; the top of the evaporation furnace body 1 is provided with a sensor 16 which can monitor the temperature and pressure inside the cavity and can also monitor the liquid level height. When the temperature of the liquid is monitored by the sensor 16 to reach a preset temperature, the heater stops heating, the rotary stirring device 12 is started to drive the liquid to rotate, meanwhile, the liquid inlet of the spiral guide groove of the stirring wheel 14 guides the liquid to the liquid outlet at the top end of the stirring wheel 14 due to the rotating force, and the liquid is diffused to the evaporation furnace wall of the evaporation furnace body 1 due to the action of centrifugal force to absorb the temperature on the furnace wall and increase the evaporation area; meanwhile, the liquid receiving tray 23 receives the dropped liquid, and the liquid is discharged through the liquid outlet and is sprayed on the heater 21, so that the dry burning phenomenon when the liquid level is lower than the heater 21 is avoided.
The top of the evaporation furnace body 1 is also provided with a pressure reducing pipeline which is also a vacuum pumping pipeline, a mechanical pressure gauge 2 is installed on the pipeline, the mechanical pressure gauge 2 belongs to system redundancy protection, and when the sensor 16 fails, the internal pressure of the evaporation furnace body 1 can be monitored through the mechanical pressure gauge 2; the outer side of the vacuum pipeline is connected with a vacuum pump 3 for reducing the internal pressure of the evaporation furnace body 1 and reducing the boiling point of liquid; the vacuum pump 3 is connected with the evaporation furnace control system 5 through a vacuum pump control line 4, and the pressure signal is monitored by the sensor 16 and then fed back to the evaporation furnace control system 5 to control the starting and stopping of the vacuum pump 3. The evaporation furnace controller 5 is electrically connected with the heater 21 through a heater control line 22, and when the sensor 16 monitors the liquid temperature, the evaporation furnace controller 5 controls the start and stop of the heater 21; the evaporation furnace body 1 is further provided with a liquid injection port 6, the liquid injection port 6 is connected with a liquid injection pump 10 through a hydraulic pipeline, a stop valve 8 is arranged on the hydraulic pipeline, the stop valve 8 and the liquid injection pump 10 are connected with the evaporation furnace controller 5 through the liquid injection pump and a stop valve control line 9, when the liquid level given by a sensor 16 is lower than a preset liquid level, the preset liquid level is 1/3-1/2 of the height of the cavity of the evaporation furnace body 1, preferably, the liquid level is lower than 1/2 of the height of the cavity of the evaporation furnace body 1, the evaporation furnace controller 5 controls the stop valve 8 to be opened, and the liquid injection pump 10 is started to. The liquid pump 10 and the liquid inlet pipe 11 are connected to a liquid storage device. The evaporation furnace controller 5 is a PLC controller.
The evaporation furnace body 1 is communicated with the liquid storage tank 19 through an exhaust pipe 18. A fan may be added to the vent line to direct the vapor into the holding tank 19. It is also possible to add pressure relief means in the liquid reservoir 19 to direct the flow of steam faster, depending on the circumstances. The bottom of the evaporation furnace body 1 and the liquid storage tank 19 are respectively provided with an evaporation furnace fixing bracket 24 and a liquid storage tank bracket 20.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (7)
1. A decompression rotary evaporation furnace comprises an evaporation furnace body (1), and is characterized in that the evaporation furnace body (1) is provided with a heater (21) and a rotary stirring device (12), wherein the heater (21) is arranged on the bottom side in a cavity of the evaporation furnace body (1); the rotary stirring device (12) comprises a motor (13), a stirring wheel (14) and a rotating shaft (15), and the rotating shaft (15) is arranged at the bottom of the evaporation furnace body (1) and is fixedly connected in a sealed rotating manner; one end of the rotating shaft (15) is connected with a stirring wheel (14) in the cavity, and the other end of the rotating shaft is connected with a motor (13) outside the cavity; the stirring wheel (14) is a spiral guide groove, the bottom opening of the spiral guide groove is a liquid inlet, and the top opening is a liquid outlet.
2. The reduced-pressure rotary evaporation furnace according to claim 1, wherein the spiral direction of the spiral-shaped guide groove is opposite to the rotation direction of the motor (13).
3. The decompression rotary evaporation furnace according to claim 2, wherein the evaporation furnace body (1) is provided with a liquid receiving tray (23), a liquid outlet is arranged at the bottom of the liquid receiving tray (23), the position of the liquid outlet is matched with the installation position of the heater (21), and liquid flowing out of the liquid outlet is sprayed on the heater (21).
4. The reduced-pressure rotary evaporation furnace according to claim 3, wherein the heater (21) is arranged at 1/2-2/3 of the cavity of the evaporation furnace body (1).
5. The reduced-pressure rotary evaporation furnace according to claim 4, wherein the heater (21) is arranged at 1/2 of the cavity of the evaporation furnace body (1).
6. A reduced-pressure rotary evaporation furnace according to claim 5, wherein the heater (21) is a spiral heating tube.
7. The reduced-pressure rotary evaporation furnace according to claim 6, wherein the liquid outlet at the top end of the spiral guide groove is higher than the top end of the heater (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374204.2U CN211536547U (en) | 2019-12-25 | 2019-12-25 | Pressure-reducing rotary evaporation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374204.2U CN211536547U (en) | 2019-12-25 | 2019-12-25 | Pressure-reducing rotary evaporation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211536547U true CN211536547U (en) | 2020-09-22 |
Family
ID=72509693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922374204.2U Expired - Fee Related CN211536547U (en) | 2019-12-25 | 2019-12-25 | Pressure-reducing rotary evaporation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211536547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118491127A (en) * | 2024-07-18 | 2024-08-16 | 山东华辰生物化学有限公司 | Prevent accumulational stills of material |
-
2019
- 2019-12-25 CN CN201922374204.2U patent/CN211536547U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118491127A (en) * | 2024-07-18 | 2024-08-16 | 山东华辰生物化学有限公司 | Prevent accumulational stills of material |
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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 |
Granted publication date: 20200922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |