CN204017447U - A kind of organic phase and the automatic gravitational separation device of aqueous systems - Google Patents
A kind of organic phase and the automatic gravitational separation device of aqueous systems Download PDFInfo
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- CN204017447U CN204017447U CN201420413658.0U CN201420413658U CN204017447U CN 204017447 U CN204017447 U CN 204017447U CN 201420413658 U CN201420413658 U CN 201420413658U CN 204017447 U CN204017447 U CN 204017447U
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- valve
- pipeline
- control
- electromagnetic flowmeter
- separation
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Abstract
A kind of organic phase and the automatic gravitational separation device of aqueous systems, relate to a kind of water system separator, described device comprises mechanical part and control system two part, and mechanical part comprises control valve (3), electromagnetic flowmeter (4) and repid cut-off valve (5); Its control system part electric elements are connected successively by following: reactor discharging opening is by flange connection connecting line, the discharging pipeline of reactor connects control valve, electromagnetic flowmeter, repid cut-off valve successively, and pipeline and control valve (3) pass through Flange joint; Electromagnetic flowmeter (4) and pipeline pass through Flange joint; Repid cut-off valve (5) and pipeline are by Flange joint, and power line and the holding wire of electric elements are all connected to control system.The utility model is separated terminal by prediction, and in the volume flow and then control piper of separation process later stage control water phase separated, the flow velocity of aqueous phase, prevents two-phase back-mixing, be applicable to the separation needing in Chemical Manufacture to carry out liquid-liquid two media.
Description
Technical field
The utility model relates to a kind of water system separator, particularly relates to a kind of organic phase and the automatic gravitational separation device of aqueous systems.
Background technology
In chemical process, usually need the separation carrying out liquid-liquid two media.Gravity Separation is by the different separation method of the density of two media, and because it is easy to operate, equipment is simple, directly can realize the separation of two kinds of liquid phase mediums in reactor or storage tank, extensive use in chemical process.In traditional-handwork separation operation process, generally that operator passes through to observe the visor in still or storage tank blowing pipeline, judge to be separated terminal, human factor impact is larger, shift to an earlier date or postpone to close valve, water can be caused not to be separated completely and to affect the purity of product, or portion of product is discharged, the waste that the yield reducing product causes.
Summary of the invention
The purpose of this utility model is to provide a kind of organic phase and the automatic gravitational separation device of aqueous systems, this device is separated terminal by prediction, the flow velocity of aqueous phase in the volume flow and then control piper of separation process later stage control water phase separated, prevent two-phase back-mixing to be separated, meet the requirement of practical implementation.
The purpose of this utility model is achieved through the following technical solutions:
A kind of organic phase and the automatic gravitational separation device of aqueous systems, described device comprises mechanical part and control system two part, and mechanical part comprises control valve, electromagnetic flowmeter and repid cut-off valve; Its control system part electric elements are connected successively by following: reactor discharging opening is by flange connection connecting line, the discharging pipeline of reactor connects control valve, electromagnetic flowmeter, repid cut-off valve successively, and pipeline and control valve pass through Flange joint; Electromagnetic flowmeter and pipeline pass through Flange joint; Repid cut-off valve and pipeline are by Flange joint, and power line and the holding wire of electric elements are all connected to control system.
Described a kind of organic phase and the automatic gravitational separation device of aqueous systems, described Electromagnetic Flow counts the sensor being separated end point determination.
Advantage of the present utility model and effect are:
The utility model is separated terminal by prediction, the flow velocity of aqueous phase in the volume flow and then control piper of separation process later stage control water phase separated, overcome the aqueous phase caused owing to closing valve time delay to retain or organic matter losing issue, in control piper, aqueous phase is in Laminar Flow state simultaneously, prevent two-phase back-mixing, reach ideal separating effect, meet the requirement of practical implementation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is Control System NetWork topological structure schematic diagram;
Fig. 3 is water phase separated control flow chart.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, the utility model is described in further detail.
The automatic Gravity Separation control device of the utility model, the discharging pipeline of reactor connects control valve, electromagnetic flowmeter, repid cut-off valve successively.Controlled stage is the system based on SIEMENS PLC S7-300, and the man-machine interface WinCC monitoring programme of monitoring level and S7-300, by ethernet communication, realize the control to executive components such as valve sites.The feature large according to both water and organic phase electrical conductivity difference, utilize electromagnetic flowmeter to detect and be separated terminal, and electromagnetic flowmeter is reliable to separation terminal fast response time; Volume forecasting according to fluid is separated terminal, and separation process improves separative efficiency first quick and back slow, is controlled the flow pattern of fluid, make separation later stage two kinds of fluids all be in laminar condition by the flow controlling to be separated later stage fluid; Arrive the time of cutting-off valve and the pass valve events time delay of stop valve according to separating interface by test point, calculate delay time that control instruction sends and according to actual field adjustment, ensure that separation accuracy.
Embodiment:
Fig. 1 gravitational separation system construction drawing: 1-organic phase; 2-aqueous phase; 3-control valve; 4-electromagnetic flowmeter; 5-repid cut-off valve.
Fig. 2 is Control System NetWork topological structure schematic diagram.
Fig. 3 is water phase separated control flow chart.
1. hardware selection: it is the detection being separated terminal that water is separated the key technology controlled with organic phase, the accuracy being separated end point determination directly affects the yield of separation accuracy and product.The design adopts electromagnetic flowmeter as the sensor being separated end point determination, can predict separation terminal simultaneously.The effect of control valve is the instantaneous delivery controlling aqueous phase in separation process, thus coutroi velocity.The effect of repid cut-off valve is when arriving separation terminal, valve rapid-closing.Because control valve is greatly delayed for actuation time, can not use as stop valve, otherwise when electromagnetic flowmeter detects organic matter, run off owing to closing the delayed organic phase that may cause of valve.
2. flow control: aqueous phase separation initial adjustment valve opening is adjusted to maximum (aperture is 100%), and quick separating goes out aqueous phase and enhances productivity.The aqueous phase separation later stage need control the flow velocity of fluid.Coutroi velocity, make the flow regime of separation later stage pipeline be laminar flow, the Reynolds (Reynold's) criterion of pipeline should meet:
。According to the physical parameter ρ under operating condition, μ, obtain and be separated later stage aqueous phase flow rate control set-point
, then obtain
.
3. time delay closing valve time: electromagnetic flowmeter detects that organic matter is separated terminal and to being separated the terminal arrival stop valve entrance side time is
for being separated the time of terminal by electromagnetic flowmeter test point arrival cutting-off valve entrance;
lfor electromagnetic flowmeter test point is to the distance of stop valve.
Because valve self exists action delay (namely valve starts to be closed to the complete shut-in time)
, detect and be separated time delay after terminal
second sends cut-out instruction.For ensureing separation accuracy, must control to be separated terminal when reaching valve inlet side, lucky valve is closed completely.Then
for valve event time delay;
for detecting that being separated time delay after terminal sends the instruction time.
4. be separated end-point prediction: in reactor aqueous phase total amount can according to early stage inventory and chemical reaction process estimation obtain, the integrated flow isolating aqueous phase detected by electromagnetic flowmeter in separation process can predict separation terminal.When electromagnetic flowmeter detects that isolating aqueous phase integrated flow value reaches 80% of aqueous phase total amount in still, system automatically switches to PID control model and controls flow, and the flow calculated is as PID set-point.
5. organic phase is separated and controls: flow through the factors such as disturbance when still exports due to organic phase and water critical surface, separation process inevitably occurs that a small amount of back-mixing closes, therefore, after first time has been separated, water in still and organic matter are left standstill 2 minutes, and control valve keeps current aperture, leaves standstill unlatching repid cut-off valve after terminating and segments, when flowmeter detects separation terminal again, time delay
close stop valve after second, isolate a small amount of water of back-mixing, separation completes.
Claims (2)
1. organic phase and the automatic gravitational separation device of aqueous systems, is characterized in that, described device comprises mechanical part and control system two part, and mechanical part comprises control valve (3), electromagnetic flowmeter (4) and repid cut-off valve (5); Its control system part electric elements are connected successively by following: reactor discharging opening is by flange connection connecting line, the discharging pipeline of reactor connects control valve, electromagnetic flowmeter, repid cut-off valve successively, and pipeline and control valve (3) pass through Flange joint; Electromagnetic flowmeter (4) and pipeline pass through Flange joint; Repid cut-off valve (5) and pipeline are by Flange joint, and power line and the holding wire of electric elements are all connected to control system.
2. a kind of organic phase according to claim 1 and the automatic gravitational separation device of aqueous systems, is characterized in that, described Electromagnetic Flow counts the sensor being separated end point determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413658.0U CN204017447U (en) | 2014-07-25 | 2014-07-25 | A kind of organic phase and the automatic gravitational separation device of aqueous systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413658.0U CN204017447U (en) | 2014-07-25 | 2014-07-25 | A kind of organic phase and the automatic gravitational separation device of aqueous systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204017447U true CN204017447U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420413658.0U Expired - Fee Related CN204017447U (en) | 2014-07-25 | 2014-07-25 | A kind of organic phase and the automatic gravitational separation device of aqueous systems |
Country Status (1)
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| CN (1) | CN204017447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225091A (en) * | 2018-09-27 | 2019-01-18 | 南京佳业检测工程有限公司 | A kind of detection device based on reaction kettle |
-
2014
- 2014-07-25 CN CN201420413658.0U patent/CN204017447U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225091A (en) * | 2018-09-27 | 2019-01-18 | 南京佳业检测工程有限公司 | A kind of detection device based on reaction kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150725 |
|
| EXPY | Termination of patent right or utility model |