CN106492498A - A kind of rotating disc type reflux ratio controller - Google Patents
A kind of rotating disc type reflux ratio controller Download PDFInfo
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- CN106492498A CN106492498A CN201610954294.0A CN201610954294A CN106492498A CN 106492498 A CN106492498 A CN 106492498A CN 201610954294 A CN201610954294 A CN 201610954294A CN 106492498 A CN106492498 A CN 106492498A
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- reflux ratio
- outer barrel
- dividing plate
- liquid
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
- B01D3/4205—Reflux ratio control splitter
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extraction Or Liquid Replacement (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A kind of rotating disc type reflux ratio controller, including outer barrel, liquid distributing trough, dividing plate, adjusting rod, rotating shaft, bearing and controlled motor；Outer barrel is enclosed construction, is made up of lower cylinder and upper cover, and the two is connected with flange, and bottom is flat board；Not connected two halves are divided into from center by dividing plate inside outer barrel lower shell, the method such as center welding is fixed together with bearing above dividing plate；Liquid distributing trough is cylinder open above, and cylinder side half is covered with 0.5～15 apertures of φ, and half is non-porous, two middles by cylinder outside two vertical laths separate, rotating shaft is fixed together through bottom hole with bottom；Liquid distributor bottom cover member insertion bearing is exposed in rotating shaft lower end, and rotating shaft is connect adjusting rod and stretches out outer barrel through sealing device, is connected with controlled motor, the angle rotated with controlled motor drive shaft rotating liquid distributing trough；Liquid outlet is respectively opened in cylinder bottom dividing plate both sides, one be refluxing opening, one for extraction mouth.
Description
Technical field
The invention belongs to chemical machinery field, is related to a kind of reflux ratio controller, it is mainly used in the backflow of chemical industry rectifying column
With produced quantity control.
Background technology
Rectifying column is that chemical industry one of is mainly equipped, and almost all of chemical products --- especially petrochemical industry is (organic
Chemical industry) product is all finally to obtain finished product by rectification.The operation of rectifying column, one is control kettle heating amount, and two is control backflow
With the ratio (i.e. reflux ratio) of extraction, that be most difficult to is the latter.Existing reflux ratio controller is by waving that University Of Tianjin develops
Formula reflux ratio controller, critical piece are outer tube, dividing plate, point liquid bucket and electromagnetic valve, wave to adjust reflux ratio by point liquid bucket,
The flow of backflow and extraction is pulse, i.e., one one, and flow cannot be measured.When reflux ratio very big and very little,
Such as reflux ratio 1/10, return time 6 seconds, 54 seconds time is produced, interval time is very long, cause rectifying column operation unstable.This time
Flow ratio controllers at present only have an application in laboratory, the factory of industrial purchase be all used a period of time after just give it up
, reason one is instability of flow, two be point liquid bucket stainless steel zipper use time short-some months just rubs.Because not having into
Ripe reliable reflux ratio controller, the reflux ratio of the middle-size and small-size rectifying column in present chemical plant is all artificial manual control, by produce valve and
Backflow, extraction effusion meter control reflux ratio.Large Scale and Continuous rectifying column can use automatic regulating valve to control capacity of returns, but this centering
Small-sized tower and batch column are inadaptable, and one is that the automatic control technology to low discharge is also immature, and two is the flow of batch column itself
Just unstable, automatic control also simply has been moved to valve on computer-essence or manual adjustment.
In order to solve the problems, such as that reflux ratio controller, University Of Tianjin propose a series of night of the inventions such as patents, such as Shang Ju
Curtain type of reflux ratio controller (CN 1236656A), the invention such as Song Guangfu with separate cover dividing plate auxiliary have drive mechanism overflow
Streaming reflux ratio controller (CN 1043960C), the invention such as Wang Hansheng with separating the auxiliary overflow-type for having drive mechanism of roller
Reflux ratio controller and the auxiliary overflow-type reflux ratio controller (CN1093298A) for having drive mechanism of dividing plate, king is covered with separating
Covering the auxiliary aperture reflex ratio controller for having drive mechanism of dividing plate and have to separate with separation for the inventions such as Chinese life hides
The auxiliary transverse slot reflex ratio controller (CN 2207865Y) for having drive mechanism of lid dividing plate, but these devices all compare
Complexity, is not industrially promoted.
Content of the invention
The present invention seeks to, a kind of rotating disc type reflux ratio controller is proposed, simple structure, control are accurate, not only can use
In middle-size and small-size rectifying column, it is also possible to for large-scale rectifying column, mounted disc reflux ratio controller can just substitute reflux pump, automatically
Regulating valve and return tank.
The technical scheme is that, rotating disc type reflux ratio controller, including outer barrel, liquid distributing trough, dividing plate, regulation
Bar, rotating shaft, bearing and controlled motor；Outer barrel is enclosed construction, is made up of lower cylinder and upper cover, and the two is connected with flange,
Bottom is flat board；Not connected two halves are divided into from center by dividing plate inside outer barrel lower shell, center welding etc. above dividing plate
Method is fixed together with bearing；Liquid distributing trough is cylinder open above, and cylinder side half is covered with 0.5～15 apertures of φ,
Half is non-porous, two middles by cylinder outside two vertical laths separate, bottom centre-drilling hole, rotating shaft is through hole and bottom (with weldering
The method such as connect) it is fixed together；Liquid distributor bottom cover member insertion bearing is exposed in rotating shaft lower end, and liquid point is exposed in rotating shaft upper end
Link together with methods such as adjusting rod grafting or pins along part on orchestration；Adjusting rod is through sealing device (filler or machinery
Deng) outer barrel is stretched out, it is connected with controlled motor, the angle rotated with controlled motor drive shaft rotating liquid distributing trough；Cylinder bottom
A liquid outlet is respectively opened in lid dividing plate both sides, one be refluxing opening, one be extraction mouth.
Further, outer barrel upper cover side sets liquid-inlet, connects rectifying column one fluid issuing of condenser.
Further, the angle for being rotated with computer (DCS) or meter specially control liquid distributing trough, adjusts backflow to reach
The purpose of ratio.
Further, controlled motor drive shaft, manual adjustment reflux ratio are substituted with handwheel or adjusting quantity meter.
Beneficial effect：A kind of new reflux ratio controller, the backflow in order to rectifying column and produced quantity control is proposed, automatic control is adjusted
Section, stability of flow overcome the problem of existing counter flow controller flow pulsation.This reflux ratio controller is referred to as rotating disc type backflow
Than controller, by drum (can be circle basin, with truncated cone-shaped etc.) shape liquid distributing trough demifacet perforate, by rotation distributing trough
Angle ambiguity backflow distribution ratio.This reflux ratio controller simple structure, easy to manufacture, control is accurate.This reflux ratio control
Device processed can be not only used for middle-size and small-size rectifying column, it is also possible to for large-scale rectifying column, with a mounted disc reflux ratio controller just
Reflux pump, three equipment of automatic regulating valve and return tank are instead of, is reduced investment outlay, simple to operate.
Description of the drawings
Fig. 1 be reflux ratio controller structural representation, each part name see in figure indicate.
Fig. 2 is liquid distributing trough graphics, alternatively referred to as rotating disk.
Fig. 3 is dividing plate graphics.
Fig. 4 positions adjusting rod graphics.
Fig. 5 is rotating shaft graphics.
Enlarged diagrams of the Fig. 6 for the sealing device B of Fig. 1 reflux ratio controller structures.
Specific embodiment
Rotating disc type reflux ratio controller of the present invention, such as Fig. 1～5, including outer barrel 9, liquid distributing trough 10 (rotating disk), dividing plate
12nd, adjusting rod 2, rotating shaft 6, bearing 11 and controlled motor 1.Outer barrel is enclosed construction, is made up of lower cylinder and upper cover, the two
Connected with 8 bolt 7 of flange, sealing device includes gland 3, packing press ring 4 and seal receptacle 5, bottom is flat board；Outer barrel top connects
The liquid of condensator outlet, condensator outlet have adapter to be connected in the liquid distributing trough of recessed plate-like, outer barrel bottom and in dividing plate
Bypass outlet and extraction outlet is respectively provided on two sides with, not connected two halves is divided into from center by dividing plate inside outer barrel lower shell,
Above dividing plate, the method such as center welding is fixed together with bearing；Liquid distributing trough is cylinder open above, especially cylinder
Side half is covered with φ 0.5～6mm apertures, and half is non-porous, two middles by cylinder outside two vertical laths separate, bottom center
Drilling, rotating shaft are fixed together through hole with methods such as bottom welding；Expose liquid distributor bottom cover member and insert in rotating shaft lower end
Enter bearing, rotating shaft upper end is exposed；Adjust
Bar stretches out outer barrel through airtight and watertight padding, with controlled motor pin connection, the angle rotated with motor control liquid distributing trough.Outer barrel
Upper cover side sets liquid-inlet, connects rectifying column condenser, and a liquid outlet is respectively opened in cylinder bottom dividing plate both sides, and one is back
Head piece, one for extraction mouth.The angle rotated with computer (DCS) or meter specially control liquid distributing trough, to reach regulation
The purpose of reflux ratio.Handwheel or adjusting quantity meter can also be used to substitute controlled motor, manual adjustment reflux ratio.
Liquid distributor is also referred to as rotating disk, and overhead condenser liquid out enters rotating disk through liquid-inlet, in rotating disk perforate
Liquid curtain is simultaneously formed, and controlled motor adjusts the angle of rotating disk.During infinite reflux, the one side that rotating disk has hole all goes to dividing plate refluxing opening
Side.During full extraction, rotating disk has hole one side all to go to dividing plate extraction mouth side.If recovery ratio is C (%), reflux ratio is R, C
It is directly proportional to rotating disk corner.Whole (infinite reflux, the R=∞) C=0% at the left side of liquid curtain in Fig. 1, liquid curtain all on the right when
(rotating disk turns 180 °, complete produce, R=0) C=100%, reflux ratio with the relational expression of recovery ratio is:
R=(100-C)/C
C=1/ (1+R) × 100%
Motor is controlled by computer (DCS), it is also possible to use meter specially control.Control parameter can be reflux ratio, also may be used
To be recovery ratio, selected by user.Reflux ratio can also adopt control manually, and controlled motor is changed into the tune on dosing pump
Scale, it is also possible to use handwheel, especially suitable to the small-sized rectifying column of test chamber.
Liquid distributing trough (rotating disk) goes out liquid hole diameter φ 0.5～6, and best φ 2～4, hole aligning method are shown in Fig. 2, hole count
Calculated by hydrodynamics formula according to fluid flow.Disc material is preferably rustless steel, and perforate does blasting treatment outside side, with
Allow the liquid to evenly distributed.Rotating disk cylinder lower edge in-car chamfering, liquid islocation plate bar is down along 4～10mm of test.Make above dividing plate
Blade-like, such as Fig. 3.
1 reflux ratio controller specification 250-4000 of embodiment, outer barrel diameter phi 273 × 6, disk diameter φ 219 × 4 turn
Disk height 150, liquid outlet φ 3, hole count 150, material 304 design 400～4000L/h of fluid flow.
2 reflux ratio controller specification 300-5000 of embodiment, outer barrel diameter phi 325 × 6, disk diameter φ 273 × 4 turn
Disk height 170, liquid outlet φ 3, hole count 200, material 316 or the coating of fluorine macromolecular material, design fluid flow 500～
5000L/h.
Claims (4)
1. a kind of rotating disc type reflux ratio controller, it is characterized in that including outer barrel, liquid distributing trough, dividing plate, adjusting rod, rotating shaft,
Seat and controlled motor；Outer barrel is enclosed construction, is made up of lower cylinder and upper cover, and the two is connected with flange, and bottom is flat board；
Not connected two halves are divided into from center by dividing plate inside outer barrel lower shell, the method such as center welding is solid with bearing above dividing plate
It is scheduled on together；Liquid distributing trough is cylinder open above, and cylinder side half is covered with 0.5 ~ 15 apertures of φ, and half is non-porous, two halves
Middle by cylinder outside two vertical laths separate, bottom centre-drilling hole, rotating shaft are fixed together through hole with bottom；Rotating shaft lower end
Expose liquid distributor bottom cover member insertion bearing, rotating shaft upper end expose on liquid distributor along part with adjusting rod grafting or
The methods such as pin link together；Adjusting rod stretches out outer barrel through sealing device, is connected with controlled motor, is driven with controlled motor and is turned
The angle that axle rotating liquid distributing trough is rotated；A liquid outlet is respectively opened in cylinder bottom dividing plate both sides, one be refluxing opening, one
For producing mouth.
2. reflux ratio control device according to claim 1, is characterized in that outer barrel upper cover side sets liquid-inlet, connection
One fluid issuing of rectifying column condenser.
3. reflux ratio control device according to claim 1 and 2, is characterized in that using computer（DCS）Or meter specially control
The angle that liquid distributing trough processed is rotated, to reach the purpose for adjusting reflux ratio.
4. reflux ratio control device according to claim 1 and 2, is characterized in that substituting controlled motor with handwheel or adjusting quantity meter
Drive shaft, manual adjustment reflux ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954294.0A CN106492498B (en) | 2016-11-03 | 2016-11-03 | A kind of rotating disc type reflux ratio controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954294.0A CN106492498B (en) | 2016-11-03 | 2016-11-03 | A kind of rotating disc type reflux ratio controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106492498A true CN106492498A (en) | 2017-03-15 |
| CN106492498B CN106492498B (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610954294.0A Active CN106492498B (en) | 2016-11-03 | 2016-11-03 | A kind of rotating disc type reflux ratio controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111228843A (en) * | 2020-02-13 | 2020-06-05 | 中国科学院理化技术研究所 | Miniature low-temperature reflux distributor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1204446B1 (en) * | 1999-08-10 | 2006-03-29 | Franz Mommert | Device for degasifying liquids |
| CN202666451U (en) * | 2012-06-30 | 2013-01-16 | 福州大学 | Plate type reflux ratio controller |
| CN105771296A (en) * | 2016-05-11 | 2016-07-20 | 金溪县绿萃香精香料有限公司 | Automatic reflux ratio device |
| CN205649876U (en) * | 2016-05-11 | 2016-10-19 | 金溪县绿萃香精香料有限公司 | Automatic reflux ratio controller |
| CN206660643U (en) * | 2016-11-03 | 2017-11-24 | 杨顺立 | A kind of rotating disc type reflux ratio controller |
-
2016
- 2016-11-03 CN CN201610954294.0A patent/CN106492498B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1204446B1 (en) * | 1999-08-10 | 2006-03-29 | Franz Mommert | Device for degasifying liquids |
| CN202666451U (en) * | 2012-06-30 | 2013-01-16 | 福州大学 | Plate type reflux ratio controller |
| CN105771296A (en) * | 2016-05-11 | 2016-07-20 | 金溪县绿萃香精香料有限公司 | Automatic reflux ratio device |
| CN205649876U (en) * | 2016-05-11 | 2016-10-19 | 金溪县绿萃香精香料有限公司 | Automatic reflux ratio controller |
| CN206660643U (en) * | 2016-11-03 | 2017-11-24 | 杨顺立 | A kind of rotating disc type reflux ratio controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111228843A (en) * | 2020-02-13 | 2020-06-05 | 中国科学院理化技术研究所 | Miniature low-temperature reflux distributor |
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| Publication number | Publication date |
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| CN106492498B (en) | 2019-07-09 |
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