CN108434770A - A kind of device of removing volatile component - Google Patents
A kind of device of removing volatile component Download PDFInfo
- Publication number
- CN108434770A CN108434770A CN201810424141.4A CN201810424141A CN108434770A CN 108434770 A CN108434770 A CN 108434770A CN 201810424141 A CN201810424141 A CN 201810424141A CN 108434770 A CN108434770 A CN 108434770A
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- film surface
- cloth film
- liquid distributor
- bullet
- evaporation element
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- 239000004744 fabric Substances 0.000 claims abstract description 134
- 238000001704 evaporation Methods 0.000 claims abstract description 90
- 230000008020 evaporation Effects 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 210000002105 tongue Anatomy 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 23
- 239000010408 film Substances 0.000 description 96
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 27
- 239000003225 biodiesel Substances 0.000 description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011344 liquid material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- -1 aliphatic ester Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
- C11C3/10—Ester interchange
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention relates to a kind of device of removing volatile component, including cylindrical tank body, upper cover and low head is respectively set above and below the tank body；Feed pipe is arranged in the upper cover center, the inside of the feed pipe is socketed main escape pipe, one end that the main escape pipe stretches into tank body connects the first evaporation element, the second evaporation element is arranged in the lower section of first evaporation element, so that gradually increasing per the angle of cloth film surface and horizontal plane on level-one evaporation element from top to bottom, to maintain the Surface Renewal speed of liquid on cloth film surface, pass through the vacuum pressure drop being arranged in the inside of each evaporation element during wind turbine compensates tank body, be conducive to the discharge of volatile materials, full sawtooth weir cloth membranous system is set to obtain preferable cloth film effect.
Description
Technical field
The present invention, which is set, is related to a kind of equipment removing volatile materials, volatility group in specially a kind of removing biodiesel
The device divided.
Background technology
Substitute of the biodiesel as traditional petrifaction diesel, it is original that it, which is with reproducible biomass resource vegetable and animals oils,
Material makes itself and monohydric alcohol, a kind of aliphatic ester that mainly methanol or ethanol synthesis generate.On the one hand, due to biodiesel
Raw material sources are in renewable resource, and therefore, biodiesel itself also just has recyclability, short for the following petroleum resources of reply
Scarce crisis has great importance, and on the other hand, there's almost no sulphur, therefore biological tea diesel oil in the preparation process of biodiesel
Use contribute to reduce pernicious gas discharge.
Currently, main biodiesel preparation process is ester-interchange method, during reaction, in order to promote vegetable and animals oils
Reaction, the dosage of monohydric alcohol is excessive, according to for the concrete condition of the difference of catalyst and technique, the use of monohydric alcohol
Amount is generally 10-20 times of vegetable and animals oils（Molar ratio）.Therefore, after the completion of reaction, although the preliminary support methanol passed through is real
It tests, more monohydric alcohol is still contained in the biodiesel coarse ester of preparation.Therefore, it is necessary to the low boiling point in above-mentioned biodiesel coarse ester
Monohydric alcohol is removed.
CN103509583A discloses a kind of process for purification of biodiesel, and the biodiesel coarse ester of generation is sent into alcohol and is returned
It receives and is distilled in tower to remove monohydric alcohol.This kind of method is the common method that diesel preparation field takes off monohydric alcohol, is led to
It crosses destilling tower and carries out distillation abjection monohydric alcohol, carry out above-mentioned operation using normal pressure tower, bottom liquid temperature is 150 DEG C.Cause
This, needs a large amount of energy consumption in dealcoholysis operation.
CN105861150A discloses a kind of biodiesel circulation film dealcoholization device, and the device is by by biodiesel coarse
Ester is guided to tower wall through taper liquid distributor and carries out falling film evaporation, is accumulated by the cloth liquid level of expansion instrument to enhance dealcoholysis efficiency.It should
The shortcomings that method is that while to obtain larger cloth liquid level product by falling liquid film, but relative to traditional filler evaporating column or
Column plate evaporating column, residence time of the material in tower greatly shorten, and the removing for methanol is very unfavorable.
CN105879415A discloses a kind of more folding face evaporators, by the way that more folding faces cone staggeredly is arranged inside tower body
Face so that for liquid from top to the lower multiple taper evaporating surfaces of experience, i.e., widened disengagement area improves liquid to be evaporated again
Residence time.But it in the process used, has the disadvantages that：Liquid to be evaporated enters tank body and carries out baffling evaporation from the top down
During, due to low-boiling point material, gradually remove, the overall viscosity of material is increased, therefore, for being in tank body lower part
Point evaporating surface for, over time, the thickness of thin layer gradually increases, be to devolatility substance it is unfavorable, separately
On the one hand, divide on evaporating surface for material for being in tank body lower part, since volatile materials ratio contained therein reduces,
The difficulty bigger of devolatility substance is also unfavorable for holding in the palm volatile materials；In addition, and for entire tank body,
The vacuum degree of tank body is to decline from top to bottom, is not for the material devolatility substance on the tank body lower part evaporation conical surface
Profit.Further, since the lower conical surface in device is connect with the inner wall of cylinder, need by the way that corresponding rise is arranged on evaporating surface
Tracheae is to realize that the exclusion of gas, this aspect make the low-boiling point material evaporated from liquid that need to pass through longer path ability
Tank body is excluded, the vacuum degree of tank body is reduced, on the other hand, the riser being arranged on evaporating surface hinders liquid on evaporating surface
Flowing so that on evaporating surface liquid thickness increase, cause the heat transfer efficiency of the heating element below evaporating surface to reduce, be unfavorable for
The evaporation of low-boiling point material in liquid.
Invention content
The purpose of the present invention is to provide a kind of device of removing volatile component, which can be used for anti-through transesterification
The biodiesel coarse ester that should be generated carries out dealcoholation treatment, and overcomes at least one of technical problem of the existing technology, is subtracting
Reach higher dealcoholysis efficiency on the basis of small energy consumption.
The present invention provides a kind of device of removing volatile component, including cylindrical tank body, the tops of the tank body
Be respectively arranged below upper cover and low head；Feed pipe, the inner sleeve of the feed pipe is arranged in the upper cover center
Tracheae is picked out, one end that the escape pipe stretches into tank body connects the first evaporation element, the lower section setting of first evaporation element
Second evaporation element.
First evaporation element includes the first top liquid distributor, cloth film surface on first, the first middle part liquid distributor and first
Lower cloth film surface；First top liquid distributor includes bullet and distributing barrel, and bullet upper end opening is less than lower ending opening, upper end
Opening is tightly connected with the escape pipe lower end, bullet lower edge several tongues of setting spaced apart, distributing barrel
For cylindrical tube, the lower ending opening of distributing barrel lower end and bullet is tightly connected, and the upper end of distributing barrel is sawtooth weir；On first
Cloth film surface is bullet, and bullet upper end opening is less than lower ending opening, bullet upper end opening and first top liquid distributor
Distributing barrel lower end connection；First middle part liquid distributor includes outer barrel, inner cylinder and annular bottom plate, outer barrel and annular
The outboard end of bottom plate is tightly connected, and the inner end of inner cylinder and annular bottom plate is tightly connected, and the level height of outer barrel upper end is high
The upper end of level height in inner cylinder upper end, inner cylinder is sawtooth weir, and the first middle part liquid distributor is arranged on first top
The lower section of cloth film surface；The first time cloth film surface is bullet, and bullet upper end opening is more than lower ending opening, and bullet upper end is opened
Mouth is connect with the lower end of the inner cylinder of first middle part liquid distributor.
Second evaporation element includes the second top liquid distributor, cloth film surface on second, the second middle part liquid distributor and second
Lower cloth film surface；Second top liquid distributor includes outer barrel, bullet and inner cylinder, and bullet upper end opening is opened less than lower end
Mouthful, the lower end of bullet lower edge several tongues of setting spaced apart, outer barrel and bullet connects, inner cylinder and
The upper end of bullet connects, and the upper end level height of inner cylinder is higher than the upper end level height of outer barrel, and the upper end of outer barrel is
Sawtooth weir；The structure of cloth film surface is identical as cloth film surface structure on first on second, the second middle part liquid distributor and the first middle part cloth liquid
Device structure is identical, and second time cloth film surface is identical as first time cloth film surface structure, liquid distributor on cloth film surface and described second on second
Outer barrel lower end connection.
The angle of cloth film surface on described first, first time cloth film surface, cloth film surface on second, second time cloth film surface and horizontal plane
It is sequentially increased.
The first wind turbine is set between cloth film surface and first time cloth film surface on the first of the first evaporation element, in the second evaporation
The second wind turbine is set between cloth film surface and second time cloth film surface on the second of unit；Be arranged air-blower control unit and the first wind turbine and
Second wind turbine is electrically connected.
Further, third evaporation element is set gradually below the second evaporation element in the tank body, the third is steamed
Bill member includes third top liquid distributor, cloth film surface in third, cloth film surface under liquid distributor and third in the middle part of third, in the third
Portion's liquid distributor, cloth film surface in the third, cloth film surface and the second evaporation element under liquid distributor and the third in the middle part of the third
In corresponding modular construction it is identical；The angle of cloth film surface and horizontal plane is sequentially increased under cloth film surface and third in third；Described
Third wind turbine is set under cloth film surface and third between cloth film surface in third so that third wind turbine electrically connects with air-blower control unit
It connects.
Further, it is identical as the second evaporation element structure that several are set gradually below the third evaporation element
Evaporation element, and the angle of cloth film surface and horizontal plane from top to bottom in several evaporation elements is sequentially increased,
Wind turbine is set between the upper cloth film surface and lower cloth film surface of several evaporation elements, and makes wind turbine and air-blower control unit
It is electrically connected.
Further, the feed pipe stretches into one end of cylinder and bends inwards to form horn mouth.
Further, the escape pipe and condensing unit, vacuum extractor are sequentially connected.
Further, discharge nozzle is set on the low head, and valve is set on discharge nozzle.
Device provided by the invention has following technical advantage：（1）It is evaporated from top to bottom per level-one by the present invention in that obtaining
The angle of cloth film surface and horizontal plane on unit gradually increases, and can be overcome with this and be increased by band evaporation biodiesel viscosity and led
Cause the defect that flowing velocity slows down on cloth film surface.Cloth film surface upper liquid layer reduced velocity flow is on the one hand so that coarse biodiesel to be evaporated
Surface Renewal reduce, on the other hand so that cloth film surface on liquid layer thicken, be unfavorable for evaporation progress.（2）Due to be evaporated
Coarse biodiesel evaporate from top to bottom during so that biodiesel waits for that devolatility content of material is reduced, therefore de-
The difficulty of volatile materials increases, on the other hand, since bleeding point is arranged on the top of tank body so that from down toward lower true in tank body
Reciprocal of duty cycle continuously decreases, and is also unfavorable for the removing of volatile materials in liquid material, the present invention in each evaporation element by being arranged
Wind turbine is electrically connected by air-blower control unit and wind turbine, is eliminated in tank body from the vacuum pressure drop under, is conducive to volatility
The removing of substance.（3）The present invention overcomes what traditional baffled evaporator was widely present by way of full sawtooth weir cloth film is arranged
The non-uniform disadvantage of cloth film, the uneven cloth film especially in evaporation element in any evaporating surface can make subsequent cloth film be entirely
Failure causes uniform cloth film to fail.It, can by being respectively provided with two-stage sawtooth weir filming device in each layer of evaporation element in the application
So that uniform cloth film can be achieved on each layer of evaporating surface, on the other hand, even if there are uneven in certain level-one evaporation element,
It can also be corrected by next stage sawtooth weir filming device.（4）Bullet of the present invention in the upper cloth film surface of evaporation elements at different levels
Lower edge several tongues of setting spaced apart, the liquid material to flow downward along upper cloth film surface are flow at tongue
When, liquid material is flowed across from tongue so that is formd volatile materials circulation passage at tongue, can be made in this way
Volatile materials on upper cloth film surface at volatilization can be directly entered then fast through escape pipe inside evaporation element through these tongues
Speed discharge tank body, shortens the discharge path of volatile materials, improves the overall vacuum degree of tank body.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
The structural schematic diagram of cloth film surface in the present invention of the positions Fig. 2.
Fig. 3 is the structural schematic diagram of the first top liquid distributor.
Fig. 4 is the A partial structural diagrams of the first middle part liquid distributor in Fig. 1.
The structural schematic diagram of the second top of the positions Fig. 5 liquid distributor.
Specific implementation mode
Technical solution provided by the invention is described further below in conjunction with specific embodiment.
If Fig. 1-5 shows, a kind of device of removing volatile component, including cylindrical tank body 1, the top of the tank body 1
Be respectively arranged below upper cover 2 and low head 3；2 center of the upper cover be arranged feed pipe 4, the feed pipe 4 it is interior
Side is socketed escape pipe 5, and one end that the escape pipe 5 stretches into tank body 1 connects the first evaporation element, under first evaporation element
The second evaporation element of side's setting；First evaporation element includes the first top liquid distributor 6, cloth film surface 7 on first, the first middle part
Liquid distributor 8 and first time cloth film surface 9；First top liquid distributor 6 includes bullet and distributing barrel, and bullet upper end opening is small
In lower ending opening, upper end opening is tightly connected with 5 lower end of the escape pipe, if the setting spaced apart of bullet lower edge
A dry tongue 10, distributing barrel are cylindrical tube, and the lower ending opening of distributing barrel lower end and bullet is tightly connected, distributing barrel it is upper
End is sawtooth weir；On first cloth film surface 7 be bullet, bullet upper end opening be less than lower ending opening, bullet upper end opening with
The lower end of the distributing barrel of first top liquid distributor 6 connects；First middle part liquid distributor 8 include outer barrel, inner cylinder and
The outboard end of annular bottom plate, outer barrel and annular bottom plate is tightly connected, and the inner end of inner cylinder and annular bottom plate is tightly connected, outside
The level height of cylinder upper end is higher than the level height of inner cylinder upper end, and the upper end of inner cylinder is sawtooth weir, the first middle part cloth liquid
Device 8 is arranged in the lower section of the first top cloth film surface；The first time cloth film surface 9 is bullet, and bullet upper end opening is big
In lower ending opening, bullet upper end opening is connect with the lower end of the inner cylinder of first middle part liquid distributor 8；Second evaporation
Unit includes the second top liquid distributor 11, cloth film surface 12, the second middle part liquid distributor 13 and second time cloth film surface 14 on second；It is described
Second top liquid distributor 11 includes outer barrel, bullet and inner cylinder, and bullet upper end opening is less than lower ending opening, under bullet
The lower end connection of end margin several tongues 10 of setting spaced apart, outer barrel and bullet, inner cylinder and bullet
Upper end connects, and the upper end level height of inner cylinder is higher than the upper end level height of outer barrel, and the upper end of outer barrel is sawtooth weir；The
The structure of cloth film surface 12 is identical as 7 structure of cloth film surface on first on two, 8 knot of the second middle part liquid distributor 13 and the first middle part liquid distributor
Structure is identical, and second time cloth film surface 14 is identical as first time 9 structure of cloth film surface, liquid distributor on cloth film surface 12 and described second on second
Outer barrel lower end connection；Cloth film surface 7 on described first, cloth film surface 12, second time cloth film on first time cloth film surface 9, second
Face 14 and the angle of horizontal plane are sequentially increased；It is set between cloth film surface 7 and first time cloth film surface 9 on the first of the first evaporation element
The first wind turbine 15 is set, second wind turbine is set between cloth film surface 12 and second time cloth film surface 14 on the second of the second evaporation element
16；Air-blower control unit and the first wind turbine 15 are set and the second wind turbine 16 is electrically connected.
In further carrying out example, in the first evaporation element and the second evaporation element from lower first cloth film surface to
The angle of second time cloth film surface and horizontal plane is 25 °, 28 °, 32 ° and 36 °, and makes the first evaporation element and the second evaporation element
In the first wind turbine and the second envelope machine rotated respectively with 125rpm and 175rpm, through preheating so that being 15wt% chargings containing quantity of methyl alcohol
50 DEG C are maintained, and the heating element under each cloth film surface from top to bottom is made to be held in 55 DEG C.In the comparative example, each cloth film surface
Angle with horizontal plane is 25 °, and wind turbine is not provided in evaporation element, and makes the heating element under each cloth film surface from top to bottom
It is held in 55 DEG C, it is identical as structure as the present embodiment.By experiment it can be found that relative to comparative example, the present embodiment
Working efficiency improves 31%, and the content of methanol is 1.2wt% in final product, and the methanol less than 3.3wt% in comparative example contains
Amount.
In further carrying out example, third evaporation element is set gradually below second evaporation element in the tank body 1,
The third evaporation element includes third top liquid distributor 17, cloth film surface 18 in third, in the middle part of third under liquid distributor 19 and third
Cloth film surface 20, third top liquid distributor 17, cloth film surface 18 in the third, liquid distributor 19 and described the in the middle part of the third
Three times cloth film surfaces 20 are identical as corresponding modular construction in the second evaporation element；Cloth film surface 20 under cloth film surface 18 and third in third
It is sequentially increased with the angle of horizontal plane；Third wind turbine is set under cloth film surface 18 and third between cloth film surface 20 in the third
21 so that third wind turbine 21 is electrically connected with air-blower control unit.
In further carrying out example, it is single with the second evaporation that several are set gradually below the third evaporation element
The identical evaporation element of meta structure, and make the angle of cloth film surface and horizontal plane from top to bottom in several evaporation elements according to
Wind turbine is arranged between the upper cloth film surface and lower cloth film surface of several evaporation elements, and makes wind turbine and wind for secondary increase
Machine control unit is electrically connected.
In further carrying out example, one end that the feed pipe 4 stretches into cylinder bends inwards to form horn mouth.
In further carrying out example, the escape pipe 5 and condensing unit, vacuum extractor are sequentially connected.
In further carrying out example, discharge nozzle is set, and valve is arranged on discharge nozzle on the low head 3.
In further carrying out example, heating element, the heating is arranged in the lower surface of each upper cloth film surface and lower cloth film surface
Element is connected respectively at temperature control device so that the temperature of each heating element gradually increases from top to bottom.Specifically, ought only be arranged
When the first evaporation element and the second evaporation element, from the cloth film surface on lower first in the first evaporation element and the second evaporation element
Angle to second time cloth film surface and horizontal plane is 25 °, 28 °, 32 ° and 36 °, and makes the first evaporation element and the second evaporation single
The first wind turbine and the second envelope machine are rotated with 125rpm and 175rpm respectively in member, through preheating so that containing quantity of methyl alcohol be 15wt% into
Material maintains 50 DEG C, and the heating element under each cloth film surface from top to bottom is made to be kept at 55 DEG C, 58 DEG C, 64 DEG C and 70
℃.In the comparative example, the angle of each cloth film surface and horizontal plane is 25 °, and wind turbine is not provided in evaporation element, and make from up to
Under heating element under each cloth film surface be held in 55 DEG C, it is identical as structure as the present embodiment.By testing it can be found that phase
For comparative example, the working efficiency of the present embodiment improves 33%, and the content of methanol is 0.6wt% in final product, less than pair
The methanol content of 3.3wt% in ratio.With the removing of volatile materials in material, the viscosity of material gradually increases, so that
The reduced velocity flow on cloth film surface of material.Cloth film surface upper liquid layer reduced velocity flow is on the one hand so that the table of coarse biodiesel to be evaporated
Face update reduces, and on the other hand so that liquid layer thickens on cloth film surface, causes heating element heat transfer efficiency below cloth film surface low,
It is unfavorable for the progress of evaporation.In the present embodiment, by making from top to bottom per the cloth film surface and level on level-one evaporation element
The angle in face gradually increases, and can be overcome with this and be increased by band evaporation biodiesel viscosity and lead to the flowing velocity on cloth film surface
The technological deficiency for slowing down and bringing.
Above-described embodiment cannot understand above-described embodiment to this for being illustrated to technical scheme of the present invention
The limitation of invention.
Claims (6)
1. a kind of device of removing volatile component, includes the tank body of cylinder, is respectively set above and below the tank body
Upper cover and low head；The upper cover center is arranged feed pipe, and the inner sleeve of the feed pipe picks out tracheae, it is described go out
Tracheae stretches into the one the first evaporation element of one end connection of tank body, and the second evaporation of lower section setting of first evaporation element is single
Member；
First evaporation element includes the first top liquid distributor, cloth film surface, the first middle part liquid distributor and first time cloth on first
Film surface；First top liquid distributor includes bullet and distributing barrel, and bullet upper end opening is less than lower ending opening, upper end opening
It is tightly connected with the escape pipe lower end, bullet lower edge several tongues of setting spaced apart, distributing barrel is circle
The lower ending opening of column-shaped barrel, distributing barrel lower end and bullet is tightly connected, and the upper end of distributing barrel is sawtooth weir；Cloth film on first
Face is bullet, and bullet upper end opening is less than lower ending opening, point of bullet upper end opening and first top liquid distributor
The lower end of cloth cylinder connects；First middle part liquid distributor includes outer barrel, inner cylinder and annular bottom plate, outer barrel and annular bottom plate
Outboard end be tightly connected, the inner end of inner cylinder and annular bottom plate is tightly connected, and the level height of outer barrel upper end is higher than interior
The upper end of the level height of cylinder upper end, inner cylinder is sawtooth weir, and the first middle part liquid distributor is arranged in the first top cloth film
The lower section in face；The first time cloth film surface be bullet, bullet upper end opening be more than lower ending opening, bullet upper end opening with
The lower end of the inner cylinder of first middle part liquid distributor connects；
Second evaporation element includes the second top liquid distributor, cloth film surface, the second middle part liquid distributor and second time cloth on second
Film surface；Second top liquid distributor includes outer barrel, bullet and inner cylinder, and bullet upper end opening is less than lower ending opening,
The lower end of bullet lower edge several tongues of setting spaced apart, outer barrel and bullet connects, inner cylinder and cone
The upper end of body connects, and the upper end level height of inner cylinder is higher than the upper end level height of outer barrel, and the upper end of outer barrel is saw
Tooth weir；The structure of cloth film surface is identical as cloth film surface structure on first on second, the second middle part liquid distributor and the first middle part liquid distributor
Structure is identical, and second time cloth film surface is identical as first time cloth film surface structure, liquid distributor on cloth film surface and described second on second
The lower end of outer barrel connects；
Cloth film surface on described first, first time cloth film surface, on second cloth film surface, second time cloth film surface and horizontal plane angle successively
Increase；
The first wind turbine is set between cloth film surface and first time cloth film surface on the first of the first evaporation element, in the second evaporation element
Second on the second wind turbine is set between cloth film surface and second time cloth film surface；Air-blower control unit and the first wind turbine and second are set
Wind turbine is electrically connected.
2. a kind of device of removing volatile component according to claim 1, it is characterised in that：Second in the tank body
Set gradually third evaporation element below evaporation element, the third evaporation element includes third top liquid distributor, cloth in third
Film surface, cloth film surface under liquid distributor and third in the middle part of third, third top liquid distributor, cloth film surface in the third, described the
Cloth film surface is identical as corresponding modular construction in the second evaporation element under three middle part liquid distributors and the third；Cloth film surface in third
It is sequentially increased with the angle of cloth film surface and horizontal plane under third；It is arranged between cloth film surface under cloth film surface and third in the third
Third wind turbine so that third wind turbine is electrically connected with air-blower control unit.
3. a kind of device of removing volatile component according to claim 2, it is characterised in that：It is evaporated in the third single
The lower section of member sets gradually several evaporation elements identical with the second evaporation element structure, and makes from top to bottom this several
The angle of cloth film surface and horizontal plane in evaporation element is sequentially increased, several evaporation elements upper cloth film surface and under
Wind turbine is set between cloth film surface, and wind turbine is electrically connected with air-blower control unit.
4. a kind of device of removing volatile component according to claim 1, it is characterised in that：The feed pipe stretches into cylinder
One end of body bends inwards to form horn mouth.
5. a kind of device of removing volatile component according to claim 1, it is characterised in that：The escape pipe and condensation
Device, vacuum extractor are sequentially connected.
6. a kind of device of removing volatile component according to claim 1, it is characterised in that：It is arranged on the low head
Discharge nozzle, and valve is set on discharge nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810424141.4A CN108434770B (en) | 2018-05-07 | 2018-05-07 | Device for removing volatile components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810424141.4A CN108434770B (en) | 2018-05-07 | 2018-05-07 | Device for removing volatile components |
Publications (2)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193383A (en) * | 2022-06-01 | 2022-10-18 | 浙江理工大学 | Horizontal tube falling film melt polycondensation method and reactor and devolatilizer thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193383A (en) * | 2022-06-01 | 2022-10-18 | 浙江理工大学 | Horizontal tube falling film melt polycondensation method and reactor and devolatilizer thereof |
| CN115193383B (en) * | 2022-06-01 | 2024-01-30 | 浙江理工大学 | Transverse tube falling film melt polycondensation method, reactor and devolatilizer thereof |
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| CN108434770B (en) | 2023-12-22 |
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