CN206414780U - A kind of thin film evaporator - Google Patents
A kind of thin film evaporator Download PDFInfo
- Publication number
- CN206414780U CN206414780U CN201720029842.9U CN201720029842U CN206414780U CN 206414780 U CN206414780 U CN 206414780U CN 201720029842 U CN201720029842 U CN 201720029842U CN 206414780 U CN206414780 U CN 206414780U
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- China
- Prior art keywords
- spiral shape
- cylinder
- thin film
- film evaporator
- power transmission
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Abstract
The utility model discloses a kind of thin film evaporator, the thin film evaporator includes motor, speed change gear, gas-liquid separation cylinder, power transmission shaft, feeding cylinder and evaporative cylinder, wherein, evaporative cylinder is internally provided with scraper plate, outside is cased with heating jacket, the top of heating jacket is provided with steam inlet, bottom is provided with condensation-water drain, evaporative cylinder is internally provided with spiral shape base, spiral shape base is fixed on power transmission shaft, outer rim is provided with spiral shape scraper plate, when power transmission shaft drives the rotation of spiral shape base, spiral shape scraper plate is close to the inwall of evaporative cylinder, drive bevel gear is provided with power transmission shaft, driven wheel of differential is provided with gas-liquid separation cylinder, drive bevel gear drives ventilating fan air draft by driven wheel of differential and drive link.The utility model adds the length in the path that feed liquid is flowed through, and has taken into full account difference and influence of the steam flowing velocity to evaporation effect of evaporative cylinder each several part temperature, simple in construction, clean easy the advantages of small with occupation area of equipment.
Description
Technical field
The utility model is related to a kind of evaporator, and in particular to a kind of thin film evaporator, belongs to evaporation equipment field.
Background technology
Scraper film evaporator is also known as wipe film inspissator, is a type of evaporator, is widely used in stone
The industries such as oil, chemical industry, medicine, feature is that feed liquid is conducted heat and evaporated in membranaceous flowing along heating tube wall, and advantage is to pass
The thermal efficiency is high, evaporation rate is fast, be particularly suitable for use in high viscosity and easy crystallization, easy fouling, the material of temperature-sensitive.Wipe film evaporates
The evaporative cylinder of device using it is more be with heating steam folder in upper inferior thick cylinder, the shell of scraper film evaporator
Set, built with rotatable blade (i.e. scraper plate), the scraper plate being arranged in evaporative cylinder needs to be close to the inwall of evaporative cylinder, so
Scraper plate is that its length is all equal rectangle from top to bottom.Feed liquid is tangentially added by evaporator top, due to gravity, from
The band of scraping of mental and physical efforts and rotor segment is acted on, and feed liquid is in the film of the inwall formation backspin of evaporator, inwall of the feed liquid in evaporative cylinder
Upper approximate whereabouts at the uniform velocity, and be concentrated by evaporation in the process, complete liquid and discharged in bottom.
The technical scheme generally combined in the prior art using straight barrel type evaporative cylinder and rectangle scraper plate, i.e. evaporative cylinder is straight up and down
Footpath is consistent, feed liquid approximate whereabouts at the uniform velocity on the inwall of evaporative cylinder；Also have using top half straight tube shape the latter half
The technical scheme of the scraper plate in back taper tubular evaporative cylinder junction belt inclination portion, this relatively straight tubular evaporative cylinder scheme of scheme is certain
The path length that feed liquid is flowed through is added in degree, the speed that feed liquid flows downward is slowed, feed liquid is extended in evaporative cylinder
The evaporation and concentration time, so as to evaporate more solvents, whole structure is better than the technical scheme of straight tube shape evaporative cylinder.But
It is that this scheme still has a certain limitation, first, easily there is feed liquid alluvial in the junction of cylinder and taper cone barrel；Second,
Installation accuracy to scraper plate requires higher, when larger error occurs in the axially mounted distance of scraper plate, can cause scraper plate and evaporation
The spacing and scraper plate and the spacing of taper cone barrel part of cylinder cylinder portion are inconsistent, so as to influence the uniformity of feed liquid film, most
The effect of evaporation is had influence on eventually；3rd, because evaporative cylinder cylinder and conic tube coupling part are in evaporative cylinder centre position, when
Scraper plate because when the displacement for axial direction occur is used for a long time, staff be difficult to caused by finding therefore scraper plate and taper cone barrel part it
Between spacing change；4th, existing technical scheme does not consider the difference of the vapor (steam) temperature of the outer each several part of evaporative cylinder, general next
Say, temperature highest near the outer top half steam inlet of evaporative cylinder, as feed liquid evaporation absorbs heat, in evaporative cylinder the latter half
Condensation-water drain portion temperature is minimum, so, the feed liquid of same flow velocity is very fast in evaporative cylinder top half evaporation rate of solvent, and
It is slower in the latter half evaporation rate of solvent of evaporative cylinder；Finally, steam in evaporative cylinder is not accounted in the prior art to circulate
Influence of the speed to feed liquid evaporation rate.
The content of the invention
The problem of the utility model exists for above-mentioned prior art is made improvements there is provided a kind of thin film evaporator, not only
The length that feed liquid flows through path can be increased, it is also contemplated that the difference of evaporative cylinder each several part vapor (steam) temperature, and in evaporative cylinder
Influence of the steam velocity of liquid assets to feed liquid evaporation rate, improves evaporation effect.
In order to realize above-mentioned target, the technical scheme that the utility model is used is：
A kind of thin film evaporator, includes motor (1), speed change gear (2), gas-liquid separation cylinder (3), charging successively from top to bottom
Cylinder (5), evaporative cylinder (7), wherein, the output shaft of the motor (1) is connected with the input shaft of the speed change gear (2), described
Power transmission shaft (4) is provided with evaporative cylinder (7), the output shaft of the speed change gear (2) is connected with power transmission shaft (4), the charging
Distributor (51) is provided with cylinder (5), and the evaporative cylinder (7) is internally provided with the scraper plate driven by the power transmission shaft (4)
(8), bottom is provided with funnel shaped feed opening (71), and outside is cased with heating jacket (6), and the top of the heating jacket (6) is set
It is equipped with steam inlet (61), bottom and is provided with condensation-water drain (62), it is characterised in that
The evaporative cylinder (7) is rounding cone barrel, and the diameter of rounding cone cylinder is less and less from top to bottom；
The scraper plate (8) is made up of spiral shape base (81) and spiral shape scraper plate (82), the spiral shape base (81) with
Power transmission shaft (4) connection, axle center and the power transmission shaft (4) axis coinciding, the outer cause of the spiral shape base (81) is up to
It is inverted cone helix down, diameter is less and less from top to bottom, and pitch is less and less from top to bottom, and lead angle is got over from top to bottom
Come smaller；The spiral shape scraper plate (82) is connected with the spiral shape base (81), is arranged on the spiral shape base (81)
Outer rim；
Drive bevel gear (41), driven wheel of differential (42), drive link (43) and row are provided with the gas-liquid separation cylinder (3)
Fan (44), the drive bevel gear (41) is arranged on the power transmission shaft (4), is connected with the driven wheel of differential (42) gear
Connect, the driven wheel of differential (42) is connected with the drive link (43), the drive link (43) is connected with the ventilating fan (44).
Foregoing thin film evaporator, it is characterised in that the inwall of evaporative cylinder (7) passes through polishing.
Foregoing thin film evaporator, it is characterised in that be formed with some projections on the inwall of evaporative cylinder (7).
The evaporative cylinder (7) of foregoing thin film evaporator, it is characterised in that neighbouring projection staggers arrangement.
Foregoing thin film evaporator, it is characterised in that the cone angle of evaporative cylinder (7) is 10 to 30 degree.
Foregoing thin film evaporator, it is characterised in that the cone angle of inverted cone of spiral shape base (81) outer rim formation is
5-15 degree.
Foregoing thin film evaporator, it is characterised in that the pitch of spiral shape base (81) uniformly reduces from top to bottom.
Foregoing thin film evaporator, it is characterised in that the lead angle of spiral shape base (81) uniformly reduces from top to bottom.
Foregoing thin film evaporator, it is characterised in that spiral shape scraper plate (82) uses polytetrafluoroethylene (PTFE) or conductive carbon fibre
Material is made.
Compared with prior art, the utility model has the advantage of：
(1) by changing the shape of conventional films evaporator, evaporative cylinder is designed as rounding cone barrel, material scraping plate is designed
For inverted cone screw type, so, in the case of with legacy equipment equal height, the utility model adds the road that feed liquid is flowed through
The length in footpath, and the speed that feed liquid flows downward is slowed, concentration time of the feed liquid in evaporative cylinder is effectively extended, so that
More solvents can be evaporated, more preferable concentrated effect is obtained, realizes efficient concentration；
(2) ventilating fan is added in gas-liquid separation cylinder, using the power of power transmission shaft, passes through bevel gear set and transmission
Bar drives ventilating fan, not only can effectively increase the velocity of liquid assets of steam in evaporative cylinder, shortens concentration time, and be not required to volume
Outer increase motor；
(3) change of evaporative cylinder each several part temperature is considered, spiral shape scraper plate pitch is designed as from top to bottom gradually to subtract
Small, feed liquid, by spiral shape scraper plate active force reduced velocity flow, takes full advantage of steam heat in evaporative cylinder the latter half；
(4) have occupation area of equipment small, simple in construction, the advantages of cleaning easy.
Brief description of the drawings
Fig. 1 is the profile of a specific embodiment of thin film evaporator of the present utility model.
Wherein：
1- motor 2- transmission devices
3- gas-liquid separations cylinder 4- power transmission shafts
41- drive bevel gear 42- driven wheels of differential
43- drive link 44- ventilating fans
5- feeding cylinder 51- distributors
6- heating jacket 61- steam inlets
62- condensation-water drain 7- evaporative cylinders
71- feed opening 8- scraper plates
81- spiral shape base 82- spiral shape scraper plates
Embodiment
Make specific introduce to the utility model below in conjunction with the drawings and specific embodiments.
Reference picture 1, thin film evaporator of the present utility model includes motor 1, speed change gear 2, gas-liquid point successively from top to bottom
From cylinder 3, feeding cylinder 5, evaporative cylinder 7, wherein, the output shaft of motor 1 is connected with the input shaft of speed change gear 2, is set in evaporative cylinder 7
Power transmission shaft 4 is equipped with, the output shaft of speed change gear 2 is connected with power transmission shaft 4；Distributor 51 is provided with feeding cylinder 5；Evaporative cylinder 7
For rounding cone barrel, the diameter of rounding cone cylinder is less and less from top to bottom, and evaporative cylinder 7 is internally provided with what is driven by power transmission shaft 4
Scraper plate 8, bottom is provided with funnel shaped feed opening 71, and outside is cased with heating jacket 6, and the top of heating jacket 6 is provided with steam
Import 61, bottom are provided with condensation-water drain 62；
Scraper plate 8 is made up of spiral shape base 81 and spiral shape scraper plate 82, and spiral shape base 81 is fixed on power transmission shaft 4, axle
The heart and the axis coinciding of power transmission shaft 4, the outer rim of spiral shape base 81 is from top to bottom inverted cone helix, and diameter is from top to bottom
Less and less, pitch is less and less from top to bottom, and lead angle is less and less from top to bottom, and the outer rim of spiral shape base 81 is set
There is spiral shape scraper plate 82, when power transmission shaft 4 drives the rotation of spiral shape base 81, spiral shape scraper plate 82 is close to the inwall of evaporative cylinder 7.
Drive bevel gear 41, driven wheel of differential 42, drive link 43 and ventilating fan 44 are provided with gas-liquid separation cylinder 3, actively
Bevel gear 41 is arranged on power transmission shaft 4, and bevel-gear sett group, driven wheel of differential 42 and drive link 43 are constituted with driven wheel of differential 42
Connection, the opposite side of drive link sets Europe ventilating fan 44, and when power transmission shaft 4 is rotated, drive bevel gear 41 passes through driven wheel of differential
42nd, the driving of drive link 43 ventilating fan 44 rotates air draft, not only can effectively increase the velocity of liquid assets of steam in evaporative cylinder 7, contracts
Short concentration time, and be not required to additionally increase motor.
As a kind of preferred scheme, the inwall of evaporative cylinder 7 passes through polishing, is not susceptible to feed liquid alluvial.
As a kind of preferred scheme, some projections are formed with the inwall of evaporative cylinder 7, these projections can increase evaporation
The surface area of 7 inwalls of cylinder, and then increase feed liquid disengagement area.
As a kind of more preferred scheme, neighbouring projection staggers arrangement.
As a kind of preferred scheme, the cone angle of evaporative cylinder 7 is spent for 10 to 30, preferably 10 degree, 20 degree and 30 degree, so,
Feed liquid is added in the case of equal height and flows through the length in path, and slows the speed that feed liquid flows downward,.
As a kind of preferred scheme, the cone angle of the inverted cone of the outer rim of spiral shape base 81 formation is 5-15 degree, preferably 5
Degree, 10 degree and 15 degree.
As a kind of preferred scheme, the pitch of spiral shape base 81 uniformly reduces from top to bottom.
As a kind of preferred scheme, the lead angle of spiral shape base 81 uniformly reduces from top to bottom, and so, feed liquid exists
Increased successively from top to bottom by the resistance of spiral shape scraper plate 82 in evaporative cylinder 7, feed liquid reduced velocity flow in evaporative cylinder 7, fully profit
With steam heat.
As a kind of preferred scheme, spiral shape scraper plate 82 is made of polytetrafluoroethylene (PTFE) or conductive carbon fibre material.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of thin film evaporator, includes motor, speed change gear, gas-liquid separation cylinder, feeding cylinder, evaporative cylinder successively from top to bottom,
Wherein, the output shaft of the motor is connected with the input shaft of the speed change gear, and power transmission shaft, institute are provided with the evaporative cylinder
The output shaft for stating speed change gear is connected with the power transmission shaft, is provided with distributor in the feeding cylinder, the evaporative cylinder it is interior
Portion is provided with by the shaft-driven scraper plate of transmission, and bottom is provided with funnel shaped feed opening, and outside is cased with heating jacket, described
The top of heating jacket is provided with steam inlet, bottom and is provided with condensation-water drain, it is characterised in that
The evaporative cylinder is rounding cone barrel, and the diameter of rounding cone cylinder is less and less from top to bottom；
The scraper plate is made up of spiral shape base and spiral shape scraper plate, and the spiral shape base is connected with the power transmission shaft, axle center
With the power transmission shaft axis coinciding, the spiral shape base outer rim is from top to bottom inverted cone helix, and diameter is got over from top to bottom
Come smaller, pitch is less and less from top to bottom, and lead angle is less and less from top to bottom；The spiral shape scraper plate and the spiral
Shape base is connected, and is arranged on the outer rim of the spiral shape base；
Drive bevel gear, driven wheel of differential, drive link and ventilating fan, the drive bevel gear are provided with the gas-liquid separation cylinder
It is arranged on the power transmission shaft, is connected with the driven wheel of differential gear, the driven wheel of differential is connected with the drive link, institute
Drive link is stated to be connected with the ventilating fan.
2. a kind of thin film evaporator according to claim 1, it is characterised in that the inwall of the evaporative cylinder is by polishing
Reason.
3. a kind of thin film evaporator according to claim 1, it is characterised in that if being formed with the inwall of the evaporative cylinder
Dry projection.
4. a kind of thin film evaporator according to claim 3, it is characterised in that neighbouring projection staggers arrangement.
5. a kind of thin film evaporator according to claim 1, it is characterised in that the cone angle of the evaporative cylinder is 10 to 30
Degree.
6. a kind of thin film evaporator according to claim 1, it is characterised in that what the spiral shape base outer rim was formed falls
The cone angle of cone is 5-15 degree.
7. a kind of thin film evaporator according to claim 1, it is characterised in that the pitch of the spiral shape base on to
Lower uniform reduction.
8. a kind of thin film evaporator according to claim 1, it is characterised in that the lead angle of the spiral shape base from
Top to bottm uniformly reduces.
9. a kind of thin film evaporator according to claim 1, it is characterised in that the spiral shape scraper plate uses polytetrafluoroethyl-ne
Alkene or conductive carbon fibre material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720029842.9U CN206414780U (en) | 2017-01-11 | 2017-01-11 | A kind of thin film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720029842.9U CN206414780U (en) | 2017-01-11 | 2017-01-11 | A kind of thin film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206414780U true CN206414780U (en) | 2017-08-18 |
Family
ID=59573943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720029842.9U Expired - Fee Related CN206414780U (en) | 2017-01-11 | 2017-01-11 | A kind of thin film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206414780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458765A (en) * | 2018-12-17 | 2019-03-12 | 江苏世林博尔制冷设备有限公司 | A kind of temperature automatically controlled downward film evaporator based on sensing technology |
-
2017
- 2017-01-11 CN CN201720029842.9U patent/CN206414780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458765A (en) * | 2018-12-17 | 2019-03-12 | 江苏世林博尔制冷设备有限公司 | A kind of temperature automatically controlled downward film evaporator based on sensing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20180111 |