CN201817458U - Device for instantly distilling citronella oil by utilizing low temperature thin films - Google Patents
Device for instantly distilling citronella oil by utilizing low temperature thin films Download PDFInfo
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- CN201817458U CN201817458U CN201020517638XU CN201020517638U CN201817458U CN 201817458 U CN201817458 U CN 201817458U CN 201020517638X U CN201020517638X U CN 201020517638XU CN 201020517638 U CN201020517638 U CN 201020517638U CN 201817458 U CN201817458 U CN 201817458U
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- tower
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Abstract
The utility model relates to a device for instantly distilling citronella oil by utilizing low temperature thin films, which belongs to a fractionating tower for producing citronella oil. The device provided by the utility model is characterized in that a thin-film distributor and a steam heater are directly arranged on a tower body; an upper tower section is provided with two stainless steel spraypak packings as demisters for blocking fluid, and the steam heater is directly arranged on the tower body, so that the flow direction of gas and the flow direction of fluid are reverse, the fluid is naturally formed into films on the surface of a heating tube array from top to bottom by means of gravity and then is subject to distillation, and the gas produced by heating is pumped into a condensing backflow device by a high vacuum from an opposite direction. The device provided by the utility model has the advantages of low manufacturing cost, short fractionation process, less heating time, low loss and energy consumption, good product quality and good effectiveness on production.
Description
Technical field
The utility model belongs to the water distilling apparatus of producing the lemongrass essential oil.
Background technology
Pamorusa oil (Cit ronella oil) is multiple fragrant mixture of ingredients such as geranial, geraniol, Geraniol, acetate geraniol, meraneine, elemol, can behind steam distillation, obtain by ground plant part with fresh or half-dried Herba Cymbopogonis Citrari, normal temperature is light yellow oily liquid down, has the intensive rose type fragrance of class geranial.Pamorusa oil is the important natural perfume product of on the world market, and Yunnan Province is the main product ground of world's pamorusa oil, and volume of production and marketing accounts for more than 90% of Chinese market.Except that other physical and chemical index, the content that a most important index is a geranial is necessary 〉=35% as the material outlet pamorusa oil.Geranial and physical and chemical index that pamorusa oil is produced in Yunnan have just reached export standard without rectifying, has tangible resources advantage, but, unrectified pamorusa oil contains impurity such as water, earth, heavy metal, can not be directly used in fields such as medicine, food, makeup, limited the use range that pamorusa oil is produced in Yunnan, this also is the general reason that only exports as industrial raw material of Yunnan Citronella Oil.With general interval type falling liquid film separation column distillation pamorusa oil, gas flow is consistent with flow direction during heating, and forced to push away forward by oil pump and gas, reach 6-12 hour heat-up time, because compositions such as geranial are at high temperature unstable, and side reactions such as cyclisation, oxidation, polymerization easily take place, at high temperature reaction causes the loss of the 6-10% left and right sides for a long time, reduce aroma quality, product does not have competitive edge in the international market.Distill and obtain quality better, the low pamorusa oil of loss, low temperature, hypoxemia, process period, weak point was essential condition.
The utility model content
The purpose of this utility model is a distillation processing pamorusa oil under the short processing condition of low temperature, hypoxemia, process period, reduce the boiling point and the interior airborne oxygen level of tower of heat-sensitive ingredients such as geranial, shortening the pamorusa oil heating gasifies the time from the liquid state to the gasiform, make it side reactions such as cyclisation, oxidation, polymerization can or not take place less, improve income, reduce the wastage.
The utility model is realized in the following manner:
Comprise evaporating kettle (100), cat head (104), spiral plate condenser (105), coil condenser (106), and, steam heater (101), film sparger (102) and scum dredger (103) are installed on the separation column body of the tower between this device evaporating kettle (100) and the cat head (104) successively, wherein:
Steam heater (101) is shell and tube heat exchange columns joint;
Film sparger (102) is made up of cloth film pipe (102-1) and shaft collar (102-2), and insert in the heating tubulation (101-4) of steam heater (101) cloth film pipe (102-1) lower end;
Scum dredger (103) is for being equipped with the tower joint of two blocks of stainless steel wave net fillers.
Heating tubulation (101-4) internal diameter of the steam heater of described device is connected and fixed with bolt between heating tubulation (101-4) and the cloth film pipe (102-1) than the big 2～7mm of cloth film pipe (102-1) external diameter.
30～53mm in the tubulation (101-4) of cloth film pipe (102-1) the lower end insertion steam heater of described device.
The heat interchanging area of the steam heater of described device (101) and tower still useful volume are closed
2/ t.
The cat head of described device provides high vacuum by slide-valve vacuum pump or carbonated drink series connection vacuum unit, and 70Pa＜pressure＜1000Pa, the pressure of steady-working state are 100Pa, and steam heater (101) Heating temperature is 50 ℃～100 ℃.
In this area, shell and tube heat exchange columns joint is meant the heating tubulation of vertically arranging along tower tray evenly is set on the tower tray tube sheet.
With general falling liquid film separation column or to rise the membrane fractionation tower different, the utility model is not provided with reboiler separately, but is directly installed on the body of the tower; The utility model substitutes the packing tower joint that former separation column plays centrifugation with film sparger and steam heater, and the pamorusa oil fractionation is gasified fast by steam heater and film sparger and cooling is finished; Separation column top is not provided with the overhead condensation reflux yet, and two blocks of stainless steel wave net fillers is installed as scum dredger, stops without the pamorusa oil liquid of gasification to be taken out of by high vacuum, enters condenser and make pamorusa oil gas hightail tower body.
The heating tubulation of above steam heater, when its internal diameter than the external diameter of cloth film pipe during greater than 7mm, cloth film deleterious, otherwise, when its internal diameter than the external diameter of cloth film pipe during less than 2mm, then pamorusa oil can not film forming.Owing to enter the pamorusa oil that is film like of heating tubulation after the utility model only limits to heat and disperses by oil pump, heated lemongrass oil mass seldom, heating-surface area is relatively very big again, moment can be gasified totally.
In with upper type, it is fixed that heat interchanging area comes according to tower still useful volume, with 〉=3m
2/ t meter, that is, if tower still useful volume is 2 tons, heat interchanging area is no less than 6m
2, can calculate the length of steam heating tubulation by heat interchanging area and heating tubulation diameter.
The outstanding feature that the utlity model has is:
1) it is identical with pamorusa oil steam traffic direction to have solved the pamorusa oil that is film in the falling liquid film sparger, a mutual miscellaneous difficult problem, make liquid pamorusa oil form film from top to bottom, and vaporized pamorusa oil is taken away from lower to upper by vacuum by cloth film pipe orifice at the effect lower edge of gravity heating tubulation inwall.
2) under high vacuum condition, reduce airborne oxygen level in the boiling point of heat-sensitive ingredients such as geranial and the tower significantly, only need pamorusa oil heating in a few second just can finish from liquid state, make it side reactions such as cyclisation, oxidation, polymerization can or not take place less to the gasiform gasification.
3) pamorusa oil after the gasification is entered condensing works by the high vacuum suction at once, finishes the liquefaction process from the gaseous state to the liquid state once more, by above moment distillation mode, has greatly reduced processing loss.
The utility model has been obtained good effect on producing.Facts have proved: this device can be gasified totally the pamorusa oil that enters steam heater in the moment in several seconds, and can be at the polymerization temperature that is lower than 150 ℃, promptly can under≤100 ℃ of lower Heating temperatures, finish gasification, make the side reaction of distillation pamorusa oil product few, processing loss＜3%, improve industrial efficiency, reduced energy consumption; The product aroma quality is good, and outward appearance is as clear as crystal, and is not moisture, and heavy metal content, content of microorganisms are qualified, can be directly used in medicine, food.
Description of drawings
Fig. 1 is the utility model overall schematic.Wherein, eucalyptus oil evaporating kettle 100, steam heater 101, film sparger 102, scum dredger 103, fractionation cat head and thrust-augmenting nozzle 104, spiral plate condenser 105, coil condenser 106.
Fig. 2 is the synoptic diagram of the utility model steam heater 101.Wherein, 101-1 is that pamorusa oil import, 101-2 are that steam inlet, 101-3 are that vapour outlet, 101-4 are the heating tubulations, and 101-5 goes up the flange dish, and 101-6 is the lower interface ring flange.
Fig. 3 is the synoptic diagram of the utility model film sparger 102.Wherein, 102-1 is a cloth film pipe, and 102-2 is a shaft collar.
Fig. 4 is the assembling synoptic diagram of steam heater 101 and film sparger 102.Among the figure, cloth film pipe 102-1 inserts heating tubulation 101-4.
Fig. 5 is the scheme of installation of the utility model scum dredger 103.Wherein, two stainless steel filtering net 103-1 pack in the tower joint.
Be described further below in conjunction with accompanying drawing.
Following examples comprise but do not limit protection domain of the present utility model.
Embodiment
Embodiment 1:
As Fig. 1, fixed installation steam heater 101, film sparger 102, scum dredger 103 between the cat head 104 of separation column and tower still 100 connect with ring flange between each tower joint.Steam heater 101 promptly evenly is provided with the heating tubulation of vertically arranging along tower tray for shell and tube heat exchange columns joint on the tower tray tube sheet; Film sparger 102 is made up of cloth film pipe 102-1 and shaft collar 102-2, and the heating tubulation 101-4 internal diameter of steam heater is than the big 5mm of cloth film pipe 102-1 external diameter, and insert among the heating tubulation 101-4 of steam heater 101 cloth film pipe 102-1 lower end; Scum dredger 103 is for being equipped with the tower joint of two blocks of stainless steel wave net fillers.
The heat interchanging area of steam heater 101 and tower still useful volume are closed
2/ t, tower still useful volume is 2 tons, heat interchanging area 6.2m
2, heating tubulation 101-4 diameter 25mm, length 200mm.
Embodiment 2:
Identical with embodiment 1 structure, further be to be connected and fixed with bolt between heating tubulation 101-4 and the cloth film pipe 102-1.53mm among the tubulation 101-4 of cloth film pipe 102-1 lower end insertion steam heater.Steam heater 101 Heating temperatures are 100 ℃.
Embodiment 3:
Identical with embodiment 1 structure, further be that 30mm among the tubulation 101-4 of steam heater is inserted in cloth film pipe 102-1 lower end.Steam heater 101 Heating temperatures are 80 ℃.
Embodiment 4:
Identical with embodiment 1 structure, further be to be connected and fixed with bolt between heating tubulation 101-4 and the cloth film pipe 102-1,40mm among the tubulation 101-4 of cloth film pipe 102-1 lower end insertion steam heater.
Embodiment 5:
Identical with embodiment 1 structure, further be that cat head provides high vacuum by slide-valve vacuum pump or carbonated drink series connection vacuum unit, its pressure progressively is reduced to 100Pa from 1000Pa, and steam heater 101 Heating temperatures are 80 ℃～90 ℃.
Embodiment 6:
Identical with embodiment 1 structure, further be that cat head provides high vacuum by slide-valve vacuum pump or carbonated drink series connection vacuum unit, its pressure progressively is reduced to 100Pa from 1000Pa, and steam heater 101 Heating temperatures are 50 ℃～70 ℃.
Claims (5)
1. low temperature thin film moment distillation pamorusa oil device, comprise evaporating kettle (100), cat head (104), spiral plate condenser (105), coil condenser (106), it is characterized in that installing successively on the separation column body of the tower between this device evaporating kettle (100) and the cat head (104) steam heater (101), film sparger (102) and scum dredger (103), wherein
Steam heater (101) is shell and tube heat exchange columns joint;
Film sparger (102) is made up of cloth film pipe (102-1) and shaft collar (102-2), heating tubulation (101-4) internal diameter is than the big 2～7mm of cloth film pipe (102-1) external diameter, and insert in the heating tubulation (101-4) of steam heater (101) cloth film pipe (102-1) lower end;
Scum dredger (103) is for being equipped with the tower joint of two blocks of stainless steel wave net fillers.
2. device according to claim 1 is characterized in that being connected and fixed with bolt between the heating tubulation (101-4) of steam heater and the cloth film pipe (102-1).
3. device according to claim 1 and 2 is characterized in that cloth film pipe (102-1) lower end inserts 30～53mm in the tubulation (101-4) of steam heater.
4. device according to claim 1 and 2 is characterized in that the heat interchanging area of steam heater (101) and tower still useful volume pass are 〉=3m
2/ t.
5. device according to claim 3 is characterized in that the heat interchanging area of steam heater (101) and tower still useful volume pass are 〉=3m
2/ t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020517638XU CN201817458U (en) | 2010-09-06 | 2010-09-06 | Device for instantly distilling citronella oil by utilizing low temperature thin films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020517638XU CN201817458U (en) | 2010-09-06 | 2010-09-06 | Device for instantly distilling citronella oil by utilizing low temperature thin films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201817458U true CN201817458U (en) | 2011-05-04 |
Family
ID=43915421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020517638XU Expired - Fee Related CN201817458U (en) | 2010-09-06 | 2010-09-06 | Device for instantly distilling citronella oil by utilizing low temperature thin films |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201817458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935590A (en) * | 2010-09-06 | 2011-01-05 | 云南绿宝香精香料股份有限公司 | Low-temperature thin film citronella oil instantaneous distilling device |
| CN106398869A (en) * | 2016-07-21 | 2017-02-15 | 甘肃农业大学 | An efficient cooking kettle suitable for essence oil extraction through a water vapor method |
-
2010
- 2010-09-06 CN CN201020517638XU patent/CN201817458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935590A (en) * | 2010-09-06 | 2011-01-05 | 云南绿宝香精香料股份有限公司 | Low-temperature thin film citronella oil instantaneous distilling device |
| CN101935590B (en) * | 2010-09-06 | 2012-06-27 | 云南绿宝香精香料股份有限公司 | Low-temperature thin film citronella oil instantaneous distilling device |
| CN106398869A (en) * | 2016-07-21 | 2017-02-15 | 甘肃农业大学 | An efficient cooking kettle suitable for essence oil extraction through a water vapor method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130906 |