CN202096764U - Scraper film evaporator - Google Patents
Scraper film evaporator Download PDFInfo
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- CN202096764U CN202096764U CN2010206021117U CN201020602111U CN202096764U CN 202096764 U CN202096764 U CN 202096764U CN 2010206021117 U CN2010206021117 U CN 2010206021117U CN 201020602111 U CN201020602111 U CN 201020602111U CN 202096764 U CN202096764 U CN 202096764U
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- evaporation
- scraper
- film evaporator
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Abstract
The utility model discloses a scraper film evaporator. A motor is connected with an evaporation cylinder through an upper sealing head; the upper sealing head is provided with a liquid seal; a liquid distributor is arranged at the lower end of a main shaft at the upper part in an evaporation chamber; the liquid distributor is provided with an allocator and distribution tanks; the distributor and the allocator take the shape of an open inverted cone and are provided with three liquid distribution tanks; one end of each distribution tank is connected with a conical distributor, and the other end of each distribution tank is tangential with the inner wall of the evaporation cylinder; the allocator, which is connected with the main shaft, collects material liquid and evenly allocates the material liquid into the three material liquid distribution tanks; the liquid distribution tanks are arranged above a rotary scraper and are connected with the main shaft; and a temperature detection point is arranged at the lower part of the evaporation cylinder. In the scraper film evaporator, the scraper is in full contact with the inner wall of the evaporation cylinder, so as to enhance heat transfer, make evaporation possible with low friction and controllable temperature and ensure the timely discharge of static electricity. The whole system can effectively reduce cost, and improve the service life of the whole machine and the safety and reliability of the evaporation.
Description
Technical field
The utility model relates to a kind of thinfilm rotary evaporator, and is specifically a kind of through rotor segment pressure film forming, the new and effective evaporimeter that can under vacuum condition, carry out falling film evaporation.
Background technology
The material that thinfilm rotary evaporator relates generally to industries such as petrochemical industry, pharmacy and video processing concentrates, evaporation, rectifying, precipitation; Its heat transfer coefficient is big, evaporation intensity is high, the overcurrent time is short, operating flexibility is big, obtains extensive use in industries such as chemical industry, petrochemical industry, medicine, agricultural chemicals, daily use chemicals, food, fine chemistry industries, in the prior art.Thinfilm rotary evaporator comprises that mainly main shaft, the rotor segment device and chuck, cylindrical shell, last low head and the motor etc. that are driven by main shaft constitute.In thinfilm rotary evaporator, this equipment key device during screeding device, material through the pressure film forming of rotor segment on the evaporimeter barrel, and then are implemented in the course of work of carrying out falling film evaporation under the vacuum condition in the access arrangement separation process.Therefore whether the version of this screeding device adapts to technological requirement becomes the normal key factor of running continuously of equipment.As far back as the sixties, just there is BP GB1024729 to propose tiltable hinge type scraper plate film evaporator.After various reports in, mainly be that scraper plate is retrofited, improving the material distribution situation, strengthen conducting heat, finally improve evaporation efficiency.
According to the requirement of technology, present scraper plate form mainly contains four kinds, promptly movable scraper plate, hinge type scraper plate, fixed scraper plate and helical flight.As pacify wide brightness. utilize thin film evaporator to boost productivity [J]. Chemical Engineering Design communication: 2008; 34 (3); 25-27 and J á n Cvengro; Tefan Poll á k, Miroslav Micov. Film wiping in the molecular evaporator [J]. described in Chem. Eng. J. 81 (2001) 9 – 14., movable scraper-type the most basic, modal a kind of scraper plate form: scraper plate is installed in four scraper plate guide grooves of rotor; Radially get rid of to evaporation cylindrical shell internal face owing to receive the centrifugal action of rotor rotation, move in a circle with rotor simultaneously.This of scraper plate scrapes, and makes material be membranaceous turbulence state in evaporation on the wall, greatly improved heat transfer coefficient, simultaneously this continuous scraping, and overheated, dried wall and the fouling etc. that suppress material effectively manifest.Fixed scraper plate and helical flight all adopt metal material; It is rigidly attached on the rotor; The length of scraper plate and same evaporation stack shell; Rotor segment is merely 1-2mm with the gap of evaporation stack shell inwall, processing of having relatively high expectations and installation progress, evaporation and concentration, precipitation or the purification of its suitable extra-high-speed viscosity and the material that spumes easily.The hinge type scraper plate is suitable for being prone to the material of fouling on heating surface, and scraper plate adopts nonmetal parts usually, adopts the hinges mode that scraper plate is installed on the pivoted frame.When rotor rotation, because action of centrifugal force, scraper plate is pressed on the evaporation cylinder inboard wall, and (with wall) slides at wall at an angle, and material is spread to film, and house wall fouling.Elastic scraper then utilizes the principle of spring to make scraper plate pack into behind the main cylinder, just fits together with the tired surface of main cylinder, is particularly suitable for the bigger material of ratio of viscosities.In the past,, have only and select fixedly scraper plate, and fixedly scraper-type can not contact with main cylinder is surperficial, between them certain clearance arranged all the time, reduce evaporation effect to a certain extent for the bigger material of ratio of viscosities.The spring scraper plate has just in time remedied this point.
Compare the rotor that patent CN 101362027A thinfilm rotary evaporator and CN 201510770U are used for scrapper thin film evaporator; What two pieces of patents were all used is follow-on hinge type scraper plate.But when handling sensitive materials, because the various special nature of material in friction sensitivity, all has higher requirement on heat sensitivity and the electrostatic sensitivity, general rotor segment can not be applied to this field.
Summary of the invention
The purpose of the utility model is to provide a kind of thinfilm rotary evaporator.
The technical solution that realizes the utility model purpose is: a kind of scrapper thin film evaporator comprises vaporization chamber, rotor segment; Main shaft lower end at the vaporization chamber internal upper part is provided with liquid distribution trough, and said liquid distribution trough has distributor and feed liquid distributing slot, and liquid distribution trough and distributor are uncovered inverted cone-shaped; And have three liquid distributing grooves, and liquid distributing groove one end connects cone shape liquid distribution trough, and the other end is tangent with the evaporation cylinder inboard wall; Distributor is connected on the main shaft; Collect feed liquid and also be assigned to feed liquid on three feed liquid distributing slots uniformly, and play the effect that discharges the gas of carrying secretly in the feed liquid, liquid distributing groove is installed in the rotor segment top; Be connected on the main shaft, be provided with the temperature sensing point in evaporation cylindrical shell bottom.
The utility model compared with prior art, its remarkable advantage: simple in structure, compact, rationally; Owing to use the rotor segment device, rotor segment is fitted with the evaporation cylinder inner surface under various feed conditions, and be controlled to film thickness; Reduce degree of friction; Because contact fully fully can be played the effect of augmentation of heat transfer, and can accomplish evaporation process at a high speed, efficiently; And guarantee to be applicable to the operating mode under the multiple condition fully by the safe and reliable of evaporation process.
Description of drawings
Accompanying drawing 1 is the profile of the utility model scrapper thin film evaporator.
Accompanying drawing 2 is the feed liquid distributor sketch mapes in the utility model device.
Accompanying drawing 3 is the scraper plate cross section enlarged drawings in the utility model device.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model is purified through the quick concentration and evaporation of the thinfilm rotary evaporator serialization with scraper and feed liquid distribution apparatus and is comprised the temperature-sensitive of energetic material, inflammable and explosive dangerous substance, reduces production costs, and improves the security in the production process.
The utility model scrapper thin film evaporator comprises vaporization chamber and rotor segment 4, and said rotor segment 4 is replaceable, and by gathering PTFE or the conductive carbon fibre material is processed.Be connected with evaporation cylindrical shell 9 through upper cover; The fluid-tight of upper cover band is to guarantee the stable operation of equipment under the vacuum condition; Distributor 1 is connected on the main shaft 5, collects feed liquid and also is assigned to feed liquid on three feed liquid distributing slots 7 uniformly, and play the effect that discharges the gas of carrying secretly in the feed liquid.Feed liquid distributing slot 7 has the inclination of 10 degree to 40 degree, and has radian, in the shape of a spiral the wire tilt distribution; Along with main shaft 5 rotations; Be distributed to evaporation cylindrical shell 9 inwalls to feed liquid uniformly through centrifugal force and gravity, and feed liquid is attached on the evaporation cylindrical shell 9, do not splash and do not produce.
Said rotor segment 4 is installed in stage casing and hypomere in the vaporization chamber, and scraper shaft 3 is installed on the rotor crossbeam 2 of vaporization chamber upper end, and rotor crossbeam 2 is used to regulate and the position that is connected scraper shaft 3, rotor segment 4.Rotor crossbeam 2 is positioned at the distributing slot below and is connected on the main shaft, is driven by main shaft 5, and drives scraper shaft 3 around main shaft 5 rotations, and scraper plate 4 is cylindric being placed on the scraper shaft 3; Said scraper plate 4 outsides, one end and vaporization chamber are close to, and an inboard end pastes with scraper shaft 3 mutually, and are driven along side roll in the evaporation cylindrical shell 9 by scraper shaft 3.
For the bringing-up section of evaporating cylindrical shell 9 stable heat energy is provided through heat medium in the chuck 8, guarantees the carrying out of evaporation, sensitive thermal resistance thermometer all is installed, monitor heating state in real time at the turnover pipeline of chuck 8; And, guarantee that the evaporation material evaporates under safety condition at the sensitive thermal resistance thermometer of the evaporation feed liquid temperature-measuring port that evaporates cylindrical shell 9 bottoms 10 installations.The 9 top perforates of evaporation cylindrical shell are evaporation indirect steam outlet 6, and indirect steam is sucked condensation in the follow-up equipment by negative pressure thus.
Below in conjunction with embodiment the utility model is done further explain.
Embodiment:
Carrene---butanol solution evaporation experiment
This experiment use the n-butanol that contains 20% volumetric concentration to do solution that the solute carrene makees solvent as material liquid, and using disengagement area is that the laboratory of 0.05 ㎡ is come material liquid is carried out single-stage evaporation with small-sized scrapper thin film evaporator.Feeding temperature is the room temperature charging, and room temperature is between 18 ℃ to 22 ℃.The boiling point of considering n-butanol is 115 ℃, and cutting n-butanol also has volatility, and evaporating temperature is the highest to be set at 100 ℃.Accomplish in the equipment preheating, and reach under the condition of negative pressure, use the peristaltic pump charging.The evaporation to concentrate carry out concentration analysis through high resolution gas chromatography.Can obtain following experimental data:
The experimental data table
| Temperature/flow | 60 ℃ | 70 ℃ | 80 ℃ | 90 ℃ | 100 ℃ |
| 2L/h | 45.7% | 66.1% | 79.2% | 86.7% | 93.1% |
| 3 L/h | 44.3% | 65.6 | 78.7% | 86.3% | 92.6% |
| 4 L/h | 42.1% | 64.8% | 77.9 | 85.2% | 92.1% |
| 5 L/h | 32.2% | 49.8% | 61.9% | 73.5% | 81.2% |
* experimental result all is to represent with the volumetric concentration of n-butanol
Because the boiling point of n-butanol is lower,, influenced the effect and the efficient of evaporation so evaporating temperature can not be too high.This Equipment Design serviceability temperature reaches as high as 240 ℃, and the evaporation of water amount is greater than 5L/h.
Claims (7)
1. the kind scrapper thin film evaporator comprises vaporization chamber, rotor segment; Main shaft [5] lower end at the vaporization chamber internal upper part is provided with liquid distribution trough, and it is characterized in that: said liquid distribution trough has distributor [1] and feed liquid distributing slot, and liquid distribution trough and distributor [1] are uncovered inverted cone-shaped; And have three liquid distributing grooves [7], and liquid distributing groove [7] one ends connect cone shape liquid distribution trough, and the other end is tangent with evaporation cylindrical shell [9] inwall; Distributor [1] is connected on the main shaft [5]; Liquid distributing groove [7] is installed in the rotor segment top, is connected on the main shaft, is provided with the temperature sensing point in evaporation cylindrical shell [9] bottom.
2. scrapper thin film evaporator according to claim 1; It is characterized in that: said rotor segment is installed in stage casing and hypomere in the vaporization chamber; Scraper shaft [3] is installed on the rotor crossbeam [2] of vaporization chamber upper end; Rotor crossbeam [2] is positioned at the distributing slot below and is connected on the main shaft, and scraper plate [4] is cylindric being placed on the scraper shaft [3]; Said scraper plate [4] outside one end and vaporization chamber are close to, and an inboard end pastes with scraper shaft [3] mutually, and are driven along the interior side roll of evaporation cylindrical shell [9] by scraper shaft [3].
3. scrapper thin film evaporator according to claim 1 is characterized in that: liquid distributing groove [7] has the inclination of 10 degree to 40 degree, and has radian, wire in the shape of a spiral, and feed liquid distributing slot [7] is along with main shaft [5] rotation.
4. scrapper thin film evaporator according to claim 1 is characterized in that: said rotor segment [4] is replaceable, and by gathering PTFE or the conductive carbon fibre material is processed.
5. scrapper thin film evaporator according to claim 1 is characterized in that: said rotor crossbeam [2] is used for regulating and the position that is connected scraper shaft [3], scraper plate [4].
6. scrapper thin film evaporator according to claim 1 is characterized in that: the turnover pipeline at chuck [8] is all installed sensitive thermal resistance thermometer.
7. scrapper thin film evaporator according to claim 1 is characterized in that: be provided with sensitive thermal resistance in evaporation cylindrical shell [9] the lower end feed liquid temperature-measuring port [10], this resistance is connected with control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206021117U CN202096764U (en) | 2010-11-11 | 2010-11-11 | Scraper film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206021117U CN202096764U (en) | 2010-11-11 | 2010-11-11 | Scraper film evaporator |
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| Publication Number | Publication Date |
|---|---|
| CN202096764U true CN202096764U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206021117U Expired - Fee Related CN202096764U (en) | 2010-11-11 | 2010-11-11 | Scraper film evaporator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589628A (en) * | 2018-12-31 | 2019-04-09 | 华测检测认证集团北京有限公司 | Integral type equipment for purifying for Acidic organic matter detection |
| CN110965046A (en) * | 2019-12-31 | 2020-04-07 | 威海中玻新材料技术研发有限公司 | Ultra-thin liquid film rotary separating type vaporizing device |
| CN111924916A (en) * | 2020-09-16 | 2020-11-13 | 山东龙安泰环保科技有限公司 | Device for treating high-salinity wastewater by using rotary-film evaporator |
-
2010
- 2010-11-11 CN CN2010206021117U patent/CN202096764U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589628A (en) * | 2018-12-31 | 2019-04-09 | 华测检测认证集团北京有限公司 | Integral type equipment for purifying for Acidic organic matter detection |
| CN110965046A (en) * | 2019-12-31 | 2020-04-07 | 威海中玻新材料技术研发有限公司 | Ultra-thin liquid film rotary separating type vaporizing device |
| CN110965046B (en) * | 2019-12-31 | 2024-05-28 | 威海中玻新材料技术研发有限公司 | Ultra-thin liquid film rotary-off type vaporizing device |
| CN111924916A (en) * | 2020-09-16 | 2020-11-13 | 山东龙安泰环保科技有限公司 | Device for treating high-salinity wastewater by using rotary-film evaporator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20151111 |
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| EXPY | Termination of patent right or utility model |