CN111701259B - Rotary climbing-film evaporator - Google Patents
Rotary climbing-film evaporator Download PDFInfo
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- CN111701259B CN111701259B CN202010499893.4A CN202010499893A CN111701259B CN 111701259 B CN111701259 B CN 111701259B CN 202010499893 A CN202010499893 A CN 202010499893A CN 111701259 B CN111701259 B CN 111701259B
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- tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
本发明涉及蒸发器技术领域，且公开了一种旋转式升膜蒸发器，包括外部密封罐，所述外部密封罐的内部固定安装有中部料液罐，所述中部料液罐内腔的底部右侧固定安装有封堵底座。通过加热旋转罐在中部料液罐内部的偏心设置，使得加热旋转罐在旋转过程中，依靠平板对加热旋转罐与中部料液罐之间的空间进行压缩，对液膜和生成的蒸汽进行挤压，加快生成的蒸汽与液膜的上升速率，进而提高生产效率，同时通过平板的设置，使得其在加热旋转罐旋转离心力和高温蒸汽的压力下持续与中部料液罐的内壁接触，进而对中部料液罐内壁上料液析出的晶体进行刮除，减少结垢的残留，提高换热效率，提高蒸发器的适用范围。
The invention relates to the technical field of evaporators, and discloses a rotary type rising film evaporator, comprising an outer sealing tank, a middle material liquid tank is fixedly installed inside the outer sealing tank, and the bottom of the inner cavity of the middle material liquid tank is The right side is fixedly installed with a blocking base. Through the eccentric setting of the heating rotary tank inside the middle material liquid tank, during the rotation process of the heating rotary tank, the space between the heating rotary tank and the middle material liquid tank is compressed by the flat plate, and the liquid film and the generated steam are squeezed. pressure, accelerate the rising rate of the generated steam and the liquid film, thereby improving the production efficiency, and at the same time, through the setting of the flat plate, it continues to be in contact with the inner wall of the middle liquid tank under the pressure of the rotating centrifugal force of the heating rotary tank and the high-temperature steam, and then to the The crystals precipitated from the material liquid on the inner wall of the middle material liquid tank are scraped off to reduce the residue of scaling, improve the heat exchange efficiency, and improve the scope of application of the evaporator.
Description
Technical Field
The invention relates to the technical field of evaporators, in particular to a rotary climbing-film evaporator.
Background
The film-rising evaporator is characterized by that the material liquid is preheated to boiling point, and is fed into the heating chamber from bottom portion, and is strongly vaporized in the heating chamber, so that the produced steam can drive the material liquid to be made into film-like rising evaporator along the tube wall, and the liquid film can be continuously evaporated in the course of rising process, and the material liquid can be passed through the heating tube once to obtain required concentration, but said evaporator is applicable to dilute material liquid whose concentration is not high and heat-sensitive material, and can not be applicable to material whose concentration is high, viscosity is high, and is easy to crystallize and scale-form, for example, in the course of production and preparation of aluminium oxide a large quantity of CO can be produced2The sodium aluminate solution is subjected to causticization and Na2CO3The content is gradually increased when Na in the evaporator2CO3Near or above the equilibrium concentration in the feed solution, Na2CO3Can be separated out on the heat exchange surface in a large amount, thereby causing the scaling of the heating pipe wall, reducing the heat transfer effect and simultaneously causing the blockage of the evaporator.
Meanwhile, when the climbing film evaporator is used, feed liquid of the climbing film evaporator is extruded by generated steam to form a liquid film on a pipe wall, in order to ensure the formation of the liquid film and the transmission of the feed liquid, the release speed of the generated steam needs to be controlled, the pressure in a heating pipe and the extrusion force of the feed liquid are further ensured, and the evaporation efficiency is limited.
Disclosure of Invention
The invention provides a rotary climbing-film evaporator which has the advantages of high heat exchange efficiency and applicability to materials with high concentration, high viscosity, easy crystallization and scaling, and solves the problems in the background art.
The invention provides the following technical scheme: a rotary climbing-film evaporator comprises an external sealing tank, wherein a middle material liquid tank is fixedly arranged inside the external sealing tank, a plugging base is fixedly arranged on the right side of the bottom of an inner cavity of the middle material liquid tank, a heating rotary tank is movably sleeved on the plugging base through a bearing, the right side of the outer wall of the heating rotary tank is in contact with the inner wall of the middle material liquid tank, a flat plate is uniformly and movably arranged on the heating rotary tank, a servo motor is fixedly connected to the bottom end of the heating rotary tank, a feed inlet is formed in the left side of the bottom of the middle material liquid tank and penetrates through the external sealing tank, a high-temperature steam inlet is formed in the left side of the top of the external sealing tank, a finishing liquid and steam outlet is formed in the right side of the top of the middle material liquid tank and penetrates through the external sealing tank, a condensate water outlet II is formed in the left side of the bottom of the heating rotary tank and the bottom of the middle material liquid tank, and communicates with the interior of the outer seal can.
Preferably, the flat plate is a hollow plate, and only one side thereof is communicated with the inside of the heating rotary tank.
Preferably, the sum of the diameter of the heating rotary tank and the length of the flat plate is greater than the diameter of the middle feed liquid tank, and the length of the flat plate is smaller than the radius of the heating rotary tank.
Preferably, the shutoff base includes semi-circular supporting seat and sealing rubber, sealing rubber fixed mounting just is located the bottom of heating rotary tank on the surface of semi-circular supporting seat, the inside fixed mounting of semi-circular supporting seat has mechanical seal device one, mechanical seal device one cup joints with the activity of heating rotary tank, the last fixed surface of middle part feed liquid jar installs top strutting arrangement, top strutting arrangement cup joints with the activity of heating rotary tank, top strutting arrangement includes top supporting bench and mechanical seal device two, two fixed mounting of mechanical seal device are in the inside of heating rotary tank, mechanical seal device two cup joints with the activity of heating rotary tank.
Preferably, the upper surface of the top supporting table is provided with an annular groove, a steel ball is movably mounted in the annular groove, and the top of the heating rotary tank is clamped with the top supporting device and is movably connected with the steel ball.
The invention has the following beneficial effects:
1. through the eccentric settings of heating rotary drum in middle part feed liquid jar inside, make heating rotary drum at rotatory in-process, rely on the flat board to heat the space between rotary drum and the middle part feed liquid jar and compress, extrude liquid film and the steam that generates, accelerate the rising speed of the steam that generates and liquid film, and then improve production efficiency, simultaneously through dull and stereotyped setting, make it last the inner wall contact with middle part feed liquid jar under the pressure of heating rotary drum rotatory centrifugal force and high-temperature steam, and then strike off the crystal that the feed liquid appeared on the inner wall of middle part feed liquid jar, reduce the residue of scale deposit, and the heat exchange efficiency is improved, and the application scope of evaporimeter is improved.
2. Through the setting of heating rotary tank and flat board for the flat board can be heated in the inside of middle part feed liquid jar and heaies up, then inserts in the feed liquid, heats the feed liquid that contacts, improves heat exchange efficiency, and through dull and stereotyped hollow setting simultaneously, make high temperature steam can get into in the flat board, increased the heat transfer surface area, further improve heat exchange efficiency for production efficiency.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic view of A-A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the installation of the plugging base and the heating rotary tank according to the present invention;
FIG. 4 is a schematic view of a structured plate according to the present invention;
FIG. 5 is an enlarged view of the point B in FIG. 1;
FIG. 6 is an enlarged view of the point C in FIG. 1.
In the figure: 1. an outer sealed can; 2. a middle feed liquid tank; 3. plugging the base; 31. a semicircular supporting seat; 32. sealing rubber; 33. a first mechanical sealing device; 4. heating the rotary tank; 5. a flat plate; 6. a servo motor; 7. a feed inlet; 8. a high temperature steam inlet; 9. a first condensed water outlet; 10. a finishing liquid and vapor outlet; 11. a second condensed water outlet; 12. a top support means; 121. a top support table; 122. and a second mechanical sealing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a rotary climbing film evaporator comprises an external seal tank 1, a middle liquid tank 2 is fixedly installed inside the external seal tank 1, a plugging base 3 is fixedly installed on the right side of the bottom of the inner cavity of the middle liquid tank 2, a heating rotary tank 4 is movably sleeved on the plugging base 3 through a bearing, the right side of the outer wall of the heating rotary tank 4 is in contact with the inner wall of the middle liquid tank 2, a flat plate 5 is uniformly and movably installed on the heating rotary tank 4, a servo motor 6 is fixedly connected to the bottom end of the heating rotary tank 4, a feed inlet 7 is formed in the left side of the bottom of the middle liquid tank 2 and penetrates through the external seal tank 1, a high-temperature steam inlet 8 is formed in the left side of the top of the external seal tank 1, a finishing liquid and steam outlet 10 is formed in the right side of the top of the middle liquid tank 2 and penetrates through the external seal tank 1, a condensate outlet two 11 is formed in the left side of the bottom of the heating rotary tank 4 and is positioned at the bottom of the middle liquid tank 2, and communicates with the inside of the outer hermetic vessel 1.
Wherein, dull and stereotyped 5 is hollow core plate, and only has one side and the inside intercommunication of heating runing jar 4, back in high temperature steam gets into heating runing jar 4, on the one hand carries out the heat transfer through the inner wall of heating runing jar 4 and the feed liquid of middle part feed liquid jar 2, and on the other hand high temperature steam gets into in the dull and stereotyped 5 to during dull and stereotyped 5 stretches into middle part feed liquid jar 2, carry out the heat transfer with the feed liquid, increased heat transfer surface area, improve heat exchange efficiency for production efficiency.
Wherein, the diameter of heating runing jar 4 and the length sum of flat board 5 are greater than the diameter of middle part feed liquid jar 2, the length of flat board 5 is less than the radius of heating runing jar 4, make flat board 5 last under the pressure of heating runing jar 4 rotatory centrifugal force and high temperature steam with the inner wall contact of middle part feed liquid jar 2, and then strike off the crystal that the feed liquid was appeared on the inner wall of middle part feed liquid jar 2, reduce the residue of scale deposit, improve heat exchange efficiency, improve the application scope of evaporimeter, a plurality of relatively independent spaces can also be formed simultaneously, and along with the rotation of heating runing jar 4, the space progressively reduces, extrude liquid film and the steam that generates, accelerate the rising rate of steam and liquid film that generates, and then improve production efficiency.
Wherein, shutoff base 3 includes semi-circular supporting seat 31 and sealing rubber 32, sealing rubber 32 fixed mounting just is located the bottom of heating rotary tank 4 on the surface of semi-circular supporting seat 31, the inside fixed mounting of semi-circular supporting seat 31 has mechanical seal device 33, mechanical seal device 33 is cup jointed with the activity of heating rotary tank 4, the last fixed surface of middle part feed liquid jar 2 installs top strutting arrangement 12, top strutting arrangement 12 is cup jointed with the activity of heating rotary tank 4, top strutting arrangement 12 includes top supporting bench 121 and mechanical seal device two 122, mechanical seal device two 122 fixed mounting is in the inside of heating rotary tank 4, mechanical seal device two 122 is cup jointed with the activity of heating rotary tank 4, relative sealing has been formed between heating rotary tank 4 and middle part feed liquid jar 2, ensure the internal pressure of middle part feed liquid jar 2.
Wherein, the upper surface of top supporting bench 121 has seted up the ring channel, and the well movable mounting of ring channel has the steel ball, and the top strutting arrangement 12 joint of heating runing vessel 4, and with steel ball swing joint, carry out certain support to heating runing vessel 4, reduce the frictional force of heating runing vessel 4 in the rotation process.
According to the working principle, high-temperature steam enters the external sealing tank 1 from the high-temperature steam inlet 8 and then is divided into two parts, one part enters a gap between the external sealing tank 1 and the middle material liquid tank 2, the other part enters the heating rotary tank 4 and further enters the inner cavity of the flat plate 5, then sequentially passes through the outer wall of the middle material liquid tank 2, the inner wall of the heating rotary tank 4 and the inner wall of the flat plate 5 for heat exchange, and is cooled after the heat exchange to form condensate water, the condensate water inside the heating rotary tank 4 flows into the external sealing tank 1 from the condensate water outlet II 11 after being condensed, is mixed with the condensate water generated inside the external sealing tank 1 and then flows out from the condensate water outlet I9; the feed liquid enters the heating rotary tank 4 from the feed inlet 7 (the feed liquid is heated to the boiling point before entering the heating rotary tank), is heated, evaporated and vaporized to generate steam, the generated steam drives the feed liquid to ascend in a film shape along the inner wall of the middle feed liquid tank 2, the outer wall of the flat plate 5 and the outer wall of the heating rotary tank 4, the feed liquid is continuously heated in the ascending process, and the heated steam and the feed liquid concentrated to a certain degree flow out from a finished liquid and steam outlet 10; meanwhile, the servo motor 6 drives the heating rotary tank 4 to rotate, so that the flat plate 5 is continuously contacted with the inner wall of the middle material liquid tank 2 under the pressure of the rotary centrifugal force of the heating rotary tank 4 and high-temperature steam, and then crystals precipitated from the material liquid on the inner wall of the middle material liquid tank 2 are scraped, meanwhile, a plurality of relatively independent spaces are formed between the flat plate 5 and the middle material liquid tank 2 and between the flat plate 5 and the heating rotary tank 4, along with the rotation of the heating rotary tank 4, the spaces are gradually reduced, the liquid film and generated steam are extruded, and due to the fact that the bottom of the heating rotary tank 4 is plugged with the base 3, steam and the material liquid are enabled to rapidly rise.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
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| CN202010499893.4A CN111701259B (en) | 2020-06-04 | 2020-06-04 | Rotary climbing-film evaporator |
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| CN202010499893.4A CN111701259B (en) | 2020-06-04 | 2020-06-04 | Rotary climbing-film evaporator |
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| CN111701259A CN111701259A (en) | 2020-09-25 |
| CN111701259B true CN111701259B (en) | 2021-12-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112969517B (en) * | 2021-02-07 | 2022-11-18 | 安徽金禾实业股份有限公司 | Production equipment and production method of sucrose-6-ester |
| CN115645953B (en) * | 2022-12-14 | 2023-03-28 | 协鑫高科纳米新材料(徐州)有限公司 | Flash tank for preparing fumed silica |
| CN119425113B (en) * | 2024-10-08 | 2025-09-30 | 山东济容热工科技有限公司 | An eccentric evaporator |
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Denomination of invention: A rotating film evaporator Granted publication date: 20211221 Pledgee: Jiujiang Bank Co.,Ltd. Yichun Economic Development Zone Branch Pledgor: Jiangxi Zongheng special equipment Co.,Ltd. Registration number: Y2025980046882 |