CN2924428Y - Split-range falling film evaporator - Google Patents
Split-range falling film evaporator Download PDFInfo
- Publication number
- CN2924428Y CN2924428Y CN 200620061543 CN200620061543U CN2924428Y CN 2924428 Y CN2924428 Y CN 2924428Y CN 200620061543 CN200620061543 CN 200620061543 CN 200620061543 U CN200620061543 U CN 200620061543U CN 2924428 Y CN2924428 Y CN 2924428Y
- Authority
- CN
- China
- Prior art keywords
- heater
- feed liquid
- feed
- pipe
- falling film
- 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
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a segment-type falling film evaporator which includes a feed liquid inlet pipe, a heater, a plurality of evaporating pipes, a steam inlet pipe, a separator, an upper heater partition, a lower heater partition, a first feed pump and a second feed pump. The upper partition and the lower partition in the heater divide the heater into two parts along the length direction; one part of the upper end of the heater is connected with the feed liquid inlet pipe, and another part is connected with the feed liquid circulating pipe; one part of the lower end of the heater is connected with the second feed pump through the feed liquid circulating pipe, and another part is connected with the feed liquid outlet pipe through the first feed pump; the lower end of the heating pipe is also connected with the separator. The utility model divides the heater into two parts by segmenting the heater, which reduces the amount of the evaporating pipes which are directly connected with the feed liquid inlet pipes, realizes the effect of increasing the density of the falling liquid and solves the 'dry wall' and 'scorching pipe' problems during the evaporation process of liquids of concentration ratio and high concentration and high viscosity.
Description
Technical field
The utility model relates to a kind of falling film evaporator, relates in particular to be applicable to highly enriched branch formula falling film evaporator than the feed liquid evaporation.
Background technology
The shell and tube falling film evaporator is widely used in the concentration process of industry thermal sensitivity feed liquids such as food, medicine, fine chemistry industry owing to evaporation efficiency height, feed liquid heated time are short.Existing shell and tube falling film evaporator comprises that feed liquid inlet pipe, heater, evaporation tube, steam inlet tube, separator, indirect steam go out pipe, feed liquid goes out pipe and feed pump.Feed liquid enters falling film evaporator by feed pipe, after evenly distributing, process feed liquid distributor flows into the evaporation tube that is positioned at heater, inwall at evaporation tube forms the uniform feed liquid film of one deck ring-type, outside evaporation tube, carry out falling film evaporation under the heating of (shell side) heating steam, at this moment the steam that produces once more is called indirect steam.In order to make full use of heat energy, cut down the consumption of energy, indirect steam is caused next evaporimeter as heating steam, with a plurality of evaporator series, this method is called multiple-effect evaporation, and the number of evaporimeter is called the effect number, according to the trend of steam with evaporimeter be called successively an effect, two effects, triple effect ..., the end is imitated (last effect) evaporimeter and is connected with the condensate vacuum system.In Multi-effect Evaporation Processes, along with the continuous evaporation of water, fall liquid density and constantly reduce, the continuous attenuate of the thickness of the liquid film that flows downward in the evaporation tube.The described liquid density of falling is meant the flow through reduction of feed volume of unit are evaporation tube of unit interval.Under the king-sized situation of cocnentration factor, each imitate heater to fall liquid density difference very big, when falling liquid density when being low to moderate certain value, liquid film can break, liquid circulation the becoming wadding strip liquid stream of film shape, " burnt pipe ", " dried wall " phenomenon occur, have a strong impact on ordinary production and product quality, feed liquid is obvious especially when be mobile poor high dense high sizing liquid.
The utility model content
The purpose of this utility model is in order to overcome the defective that above-mentioned falling film evaporator exists, a kind of branch formula falling film evaporator that is suitable for highly enriched than falling film evaporation is provided, under the feed rate situation identical with existing falling film evaporator, the quantity of the evaporation tube that directly is connected by effective minimizing with feed pipe, thereby that improves evaporimeter falls liquid density, solve " dried wall ", " burnt pipe " problem of occurring in the highly enriched when high dense high sizing liquid evaporation process, and can improve evaporation efficiency.
The purpose of this utility model is achieved through the following technical solutions:
A kind of minute formula falling film evaporator comprises the feed liquid inlet pipe, is used for the heater of feed liquid in the heating evaporation pipe, is positioned at many evaporation tubes of heater, the steam inlet tube that is connected with heater, the separator that is connected with the heater bottom; It is characterized in that: described falling film evaporator also comprises two of heater upper spacer, heater lower clapboard and feed pump, described heater upper spacer and the heater lower clapboard that lays respectively at upper and lower part in the heater longitudinally is separated into heater two parts, a part is connected with the feed liquid inlet pipe in the heater upper end, another part is connected with the feed liquid circulation pipe, a part is connected with two of feed pump by the feed liquid circulation pipe in the heater lower end, and another part goes out pipe through one of feed pump and feed liquid and is connected; The heater bottom that is positioned at heater lower clapboard upper end is connected with separator.
For further realizing the purpose of this utility model:
Useful is that described separator is connected with two of feed pump.
Useful is that described heater is connected with separator by flange.
Compared with prior art, the utlity model has following advantage:
The utility model adopts heater to divide the method for journey, amass under the constant situation at the evaporimeter THS, evaporimeter is divided into two, like this under the feed rate situation identical with existing falling film evaporator, owing to reduced the quantity of the evaporation tube that directly is connected with the feed liquid inlet pipe, thereby the amount of the feed liquid that enters evaporation tube is increased relatively, pump into the heater upper end by two of feed pump again through the feed liquid after the falling film evaporation, and carry out falling film evaporation once more, therefore, under the prerequisite that guarantees the falling liquid film effect, having reached increases the effect of falling liquid density, has solved " the dried wall " that occur in the highly enriched when high dense high sizing liquid evaporation process, " burnt pipe " problem.Because that 1st effective evaporator reduction of feed volume of discharging is minimum, " dried wall ", " burnt pipe " problem generally all appears at this effect, so of the present utility model minute formula falling film evaporator generally all is placed on that effect of discharging.
And because the increase of feed liquid flow in the evaporation tube can be kept stable liquid film and exist in evaporation tube, the utility model can also improve the evaporation efficiency of falling film evaporator.
Description of drawings
Fig. 1 is the structural representation of the utility model branch formula falling film evaporator.
Shown in the figure: 1. feed liquid inlet pipe, 2. heater upper spacer, 3. heater, 4. evaporation tube, 5. steam inlet tube, 6. heater lower clapboard, 7. feed liquid goes out pipe, 8. one of feed pump, 9. two of feed pump, 10. flange, 11. separators, 12. indirect steams go out pipe, 13. feed liquid circulation pipes.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but the claimed scope of the utility model is not limited to the scope that embodiment represents.
Fig. 1 is the structural representation of the utility model branch formula falling film evaporator.As shown in Figure 1, this minute the formula falling film evaporator comprise feed liquid inlet pipe 1, be used for the heater 3 of heating evaporation pipe, the many evaporation tubes 4 that are positioned at heater 3, the steam inlet tube 5 that is connected with heater 3, the separator 11 that is connected with the heater lower end; This falling film evaporator also comprises 29 of heater upper spacer 2, heater lower clapboard 6 and feed pump, lay respectively at the heater upper spacer 2 of upper and lower parts in the heater 3 and heater lower clapboard 6 longitudinally heater is separated into about two parts, right part is connected with feed liquid inlet pipe 1 in the heater upper end, and left part is connected with feed liquid circulation pipe 13; Be connected with 29 of feed pump by feed liquid circulation pipe 13 at heater lower end right part, left part goes out pipe 7 through one of feed pump 8 and feed liquid and is connected; Heater 3 bottoms that are positioned at the upper end of heater lower clapboard 6 also are connected with separator 11 by flange 10, and indirect steam goes out to manage 12 and is connected with separator 11.
During use, feed liquid is carried the right part that is entered heater 3 tops by feed pipe 1 through pump, flow through evaporation tube 4 and carry out falling film evaporation, carry out the vapour-liquid pre-separation in heater 3 bottoms, liquid-vapor mixture enters separator 11 again and carries out vapor-liquid separation, feed liquid after pre-separation feed liquid and the vapor-liquid separation merges after feed liquid circulation pipe 13 enters 29 of feed pump, the left part that enters heater 3 through feed liquid circulation pipe 13 evaporates once more again, after evaporation is finished, liquid-vapor mixture enters separator 11 and carries out vapor-liquid separation after the pre-separation of heater bottom, indirect steam goes out pipe 12 through indirect steam and enters the vacuum condensation system, and the concentrated liquid of finishing goes finished product storage tank through 8 conveyings of one of feed pump.
The utility model adopts heater to divide the method for journey, evaporimeter is divided into two, like this under the feed rate situation identical with existing falling film evaporator, owing to reduced the quantity of the evaporation tube that directly is connected with the feed liquid inlet pipe, thereby the amount of the feed liquid that enters evaporation tube is increased relatively, pump into the heater upper end by two of feed pump again through the feed liquid after the falling film evaporation, and carry out falling film evaporation once more, therefore, under the prerequisite that guarantees the falling liquid film effect, having reached increases the effect of falling liquid density, has solved " the dried wall " that occur in the highly enriched when high dense high sizing liquid evaporation process, " burnt pipe " problem.
Claims (3)
1, a kind of minute formula falling film evaporator comprises the feed liquid inlet pipe, is used for the heater of feed liquid in the heating evaporation pipe, is positioned at many evaporation tubes of heater, the steam inlet tube that is connected with heater, the separator that is connected with the heater bottom; It is characterized in that: described falling film evaporator also comprises two of heater upper spacer, heater lower clapboard and feed pump, described heater upper spacer and the heater lower clapboard that lays respectively at upper and lower part in the heater longitudinally is separated into heater two parts, a part is connected with the feed liquid inlet pipe in the heater upper end, another part is connected with the feed liquid circulation pipe, a part is connected with two of feed pump by the feed liquid circulation pipe in the heater lower end, and another part goes out pipe through one of feed pump and feed liquid and is connected; The heater bottom that is positioned at heater lower clapboard upper end is connected with separator.
2, highly enriched than feed liquid falling film evaporator according to described minute formula of claim 1, it is characterized in that: described separator is connected with two of feed pump.
3, highly enriched than feed liquid falling film evaporator according to claim 1 or 2 described minutes formulas, it is characterized in that: described heater is connected with separator by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061543 CN2924428Y (en) | 2006-07-12 | 2006-07-12 | Split-range falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061543 CN2924428Y (en) | 2006-07-12 | 2006-07-12 | Split-range falling film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924428Y true CN2924428Y (en) | 2007-07-18 |
Family
ID=38260861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620061543 Expired - Fee Related CN2924428Y (en) | 2006-07-12 | 2006-07-12 | Split-range falling film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924428Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854323A (en) * | 2016-05-09 | 2016-08-17 | 覃景壮 | Falling-film evaporator balance device |
-
2006
- 2006-07-12 CN CN 200620061543 patent/CN2924428Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854323A (en) * | 2016-05-09 | 2016-08-17 | 覃景壮 | Falling-film evaporator balance device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100586523C (en) | Pleietrepie counter current falling film evaporator for recycling organic solvent | |
| CN107032429A (en) | A kind of reverse osmosis thick water treatment system and handling process | |
| CN104192927A (en) | Phenol-acetone wastewater evaporation desalting pretreatment process | |
| CN106395950A (en) | Sea water desalination method adopting low-temperature multi-effect distillation for producing fresh water through efficient use of heat energy | |
| CN102765770B (en) | Efficient machine for desalting sea water | |
| CN105964008B (en) | A kind of high-purity vinyl acetate piece-rate system | |
| CN205603247U (en) | Rise diaphragm type multiple -effect water distiller | |
| CN206142859U (en) | Evaporimeter for water distiller | |
| US3849259A (en) | Distillation apparatus | |
| CN2924428Y (en) | Split-range falling film evaporator | |
| CN206288988U (en) | A kind of multi-effect water distillator | |
| CN108651932A (en) | A kind of honey process units and its application method | |
| CN101274784B (en) | Steam-water four-stage separating five-effect water distillator | |
| CN104524806B (en) | A kind of hexamethylenamine complete continuous crystallisation production technology and equipments | |
| CN206730537U (en) | A kind of three-effect evaporation and condensation device | |
| CN203694620U (en) | Low-temperature concentration device for tobacco extracting solution | |
| CN215505895U (en) | Pyroligneous liquor rectification and purification device with secondary rectification function | |
| CN102260141A (en) | Production method and device of refined glycerin in non-distillation techniques | |
| CN1387931A (en) | Multi-effect self-descending membrane-pipe type alumina liquid evaporating process | |
| CN111375218B (en) | Molasses concentrating device and using method and process thereof | |
| CN207605382U (en) | A kind of multiple effect counter current vapo(u)rization system | |
| CN204447369U (en) | A kind of tandem heater of acrylic acid dehydrating tower | |
| CN106277115A (en) | A kind of saline sewage crystallizing evaporator, cleaning system and purification technique | |
| CN209422985U (en) | A kind of multieffect evaporator | |
| CN206642385U (en) | Multiple-effect falling film is evaporated in vacuo condenser apparatus |
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: 20070718 Termination date: 20140712 |
|
| EXPY | Termination of patent right or utility model |