CN109504809A - Sugaring falling film evaporation intelligence control system - Google Patents
Sugaring falling film evaporation intelligence control system Download PDFInfo
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- CN109504809A CN109504809A CN201811520468.8A CN201811520468A CN109504809A CN 109504809 A CN109504809 A CN 109504809A CN 201811520468 A CN201811520468 A CN 201811520468A CN 109504809 A CN109504809 A CN 109504809A
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- Prior art keywords
- falling film
- control valve
- film evaporator
- syrup
- master controller
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- 239000011552 falling film Substances 0.000 title claims abstract description 157
- 238000001704 evaporation Methods 0.000 title claims abstract description 52
- 230000008020 evaporation Effects 0.000 title claims abstract description 50
- 238000009923 sugaring Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 235000000346 sugar Nutrition 0.000 claims abstract description 16
- 238000009833 condensation Methods 0.000 claims abstract description 9
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 239000006188 syrup Substances 0.000 claims description 102
- 235000020357 syrup Nutrition 0.000 claims description 102
- 239000007788 liquid Substances 0.000 claims description 45
- 239000012530 fluid Substances 0.000 claims description 20
- 238000005259 measurement Methods 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 7
- 239000010408 film Substances 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims 6
- 239000002002 slurry Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 230000007704 transition Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 235000021552 granulated sugar Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008542 thermal sensitivity Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B25/00—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
- C13B25/06—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices combined with measuring instruments for effecting control of the process
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B25/00—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
- C13B25/001—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices with heating tubes or plates
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B25/00—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
- C13B25/02—Details, e.g. for preventing foaming or for catching juice
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Confectionery (AREA)
Abstract
The invention discloses a kind of sugaring falling film evaporation intelligence control systems, including heater (1), 1# falling film evaporator (2), 2# falling film evaporator (3), condensation water tank (4), pump (5~10), master controller, field instrument and cable.The system realize to falling film evaporator evaporation process carry out intelligent control, improve evaporation performance, reduce steam consumption, reduce sugar transition, reduce fouling, effectively control vapor condensed water containing in terms of be in the leading level in the world.
Description
Technical field
The present invention relates to the technical fields of white granulated sugar preparation, specifically sugaring falling film evaporation intelligence control system.
Background technique
Sugar industry is the basic industries of food service industry, and is that papermaking, chemical industry, fermentation, medicine, building materials, furniture etc. are a variety of
The primary industry of product, occupies an important position in national economy.
Falling film evaporation technology is widely used in the evaporation of the water or organic solvent solution of the industries such as medicine, food, chemical industry, light industry
Liquid waste processing that is dense, and can be widely used for the above industry is concentrated.It is especially adapted for use in heat sensitive material, the equipment is in vacuum and low temperature
Under the conditions of operated continuously, have evaporability is high, energy-saving, operating cost is low and can guarantee material in evaporation process
Middle invariance.
Falling film evaporation is that feed liquid is added from falling film evaporator heating room upper tube box, through liquid distribution and film formation device,
It is even to be assigned in each heat exchanger tube, under gravity and vacuum induced and airflow function, flowed from above to below at uniformly membranaceous.It flows over
Cheng Zhong is heated by shell side heat medium and is vaporized, and the steam and liquid phase of generation enter the separation chamber of evaporator jointly, and vapour-liquid is through abundant
Separation, steam enter condenser condensation (single-action operation) or enter lower 1st effective evaporator as heat medium, to realize multiple-effect
Operation, liquid phase are then discharged by separation chamber.
Process flow has four kinds of fair current (cocurrent), adverse current, mixed flow (cross-flow), advection forms:
Fair current: solution is identical with steam flow, all flows to end effect by effect sequence.Material liquid is with an effect is pumped into, by each effect
Between pressure difference, automatically flow into next effect, complete liquid and gone out from end effect (usually operating under negative pressure) with pumping.Due to latter effect
Pressure is low, and the boiling point of solution is also low, solution in the past effect enter latter effect when can flash section moisture, the secondary vapour of generation also compared with
More, since the concentration of aftereffect imitates high, low operation temperature earlier above, often the ratio of heat transfer coefficient end effect of the first effect is much higher.Fair current stream
The general suitable treatment of journey is the material of thermal sensitivity in the case where high concentration.
Countercurrently: raw material is sequentially sent to preceding effect by pumping from end effect, completes liquid and is discharged by an effect, feed liquid and steam reverse flow.Generally
The solution that suitable treatment viscosity with temperature and concentration change greatly, not easy to handle heat sensitive material.
Mixed flow: the advantages of being the combination of concurrent-countercurrent process, having concurrent-countercurrent concurrently, keeps away its disadvantage, but complicated for operation, it is desirable that automatic control level
It is very high.
Advection: each effect, which all feeds, all goes out to complete liquid, and each effect has crystallization to be precipitated, can separate crystallization in time, be generally used for being saturated molten
The evaporation of liquid.
In Sugar Industry, traditional evaporation industrially exist efficiency of energy utilization is very low, product quality is not high, equipment can
By the disadvantage of property difference, and consequently lead to the increase of factory's steam consumption.
Summary of the invention
The invention discloses a kind of sugaring falling film evaporation intelligence control systems, realize and carry out to falling film evaporator evaporation process
Intelligent control is improving evaporation performance, is reducing steam consumption, reduction sugar transition, reduction fouling, effectively control vapor condensed water containing sugared
Divide etc. is in the leading level in the world.
The present invention is achieved through the following technical solutions:
A kind of sugaring falling film evaporation intelligence control system, including heater 1,1# falling film evaporator 2,2# falling film evaporator 3, condensation
Water tank 4, pump 5~10, master controller, field instrument and cable；
Pipeline G3, G5 are connected with heater 1, and heater 1 is connected by pipeline G6 with condensation water tank 4, and heater 1 passes through pipeline G4
It is connected with 1# falling film evaporator 2, steam enters 1# falling film evaporator 2 by pipeline G1, and hot water enters 1# through piping G10, G11
2 top of falling film evaporator, 1# falling film evaporator 2 are connected by pipeline G6, G7, G8, G9 with pump 5, and 1# falling film evaporator 2 passes through pipe
Road G2 is connected with 2# falling film evaporator 3, and 2# falling film evaporator 3 is connected by pipeline G14, G15, G16, G17 with pump 7 and pump 8, heat
Water enters the top of 2# falling film evaporator 3 through piping G10, G12, evaporates the heavy syrup of completion from 3 lower part of 2# falling film evaporator
It is connected by pipeline G18, G19, G20, G21 with pump 9 and pump 10 and is sent to subsequent workshop section
Field instrument includes pressure transmitter 11, control valve 12, thermal resistance 13, control valve 14, pressure transmitter 15, control valve
16, pressure transmitter 17, fluid level transmitter 18, control valve 19, thermal resistance 20, control valve 21, control valve 22, flowmeter 23, control
Valve 24 processed, pressure transmitter 25, pressure transmitter 26, fluid level transmitter 27, flowmeter 28, control valve 29, concentration meter 30, control
Valve 31, flowmeter 32, flowmeter 33, control valve 34 and cable；
Pressure transmitter 11 is installed on jet chimney G1, measures steam pressure.
Control valve 12 is installed on the blow-down pipe of jet chimney, controls the emptying of steam.
Thermal resistance 13 is installed on jet chimney G1, measures the temperature of steam.
Control valve 14 is installed on jet chimney G1, controls the temperature of steam.
Pressure transmitter 15 and pressure transmitter 25 are respectively arranged on two falling film evaporator calandrias, and measurement falling liquid film steams
Send out the pressure of device calandria.
Control valve 16 is installed on the steam inlet duct G1 of 1# falling film evaporator, controls the pressure of steam.
Pressure transmitter 17 and pressure transmitter 26 are respectively arranged in two falling film evaporator lower parts, measure falling film evaporator
The pressure of lower part.
Fluid level transmitter 18 and fluid level transmitter 27 are respectively arranged in two falling film evaporator lower parts, measure falling film evaporator
Liquid level.
Control valve 19 and control valve 24 are respectively arranged on syrup inlet pipeline G4, G13 of 2 falling film evaporators, control
The liquid level of falling film evaporator.
Thermal resistance 20 is installed on the syrup inlet pipeline G4 of 1# falling film evaporator, and the syrup of measurement 1# falling film evaporator enters
Mouth temperature.
Control valve 21 is installed on the inlet steam pipeline G5 of heater, controls the temperature of heater outlet syrup.
Control valve 22 and control valve 29 are respectively arranged on two falling film evaporator hot water inlet's pipelines G11, G12, control
Enter the flow of water.
Flowmeter 23 and flowmeter 28 are respectively arranged on syrup reflux line G9, G17 of two falling film evaporators, measurement
Syrup flow.
Control valve 24 is installed on pipeline G13, controls the liquid level of 2# falling film evaporator.
Concentration meter 30 is installed on pipeline G21, measures syrup brix.
Control valve 31 and flowmeter 32 are installed on pipeline G21, measurement and control syrup flow.
Flowmeter 33 and control valve 34 are installed on pipeline G3, measurement and control syrup flow.
Field instrument passes through cable respectively and is connected with the cabinet of DCS or PLC, and pump 5~10 passes through cable and master controller
Cabinet is connected.
The sugaring falling film evaporation intelligence control system realizes the control to sugaring falling film evaporation by following control loops:
Master controller and flowmeter 33, control valve 34 form a flow control circuit, when flow is greater than the set value, main control
Device turns down control valve 34, when flow is less than setting value, opens big control valve 34, automatically keeps the stabilization of flow；
Master controller and thermal resistance 20, control valve 21 form a temperature control loop, main when syrup temp is more than setting value
Controller turns down control valve 21, and when syrup temp is lower than setting value, master controller opens big control valve 21, automatically keeps syrup temperature
Degree is stable at setting value；
Master controller and pressure transmitter 11, control valve 12 form a pressure control loop, when steam pressure is higher than setting value
When, master controller opens big control valve 12, and when steam pressure is lower than setting value, master controller turns down control valve 12, automatically keeps
Steam pressure is stable at setting value；
Master controller and thermal resistance 13, control valve 14 form a temperature control loop, main when vapor (steam) temperature is higher than setting value
Controller opens big control valve 14, and when vapor (steam) temperature is lower than setting value, master controller intelligently turns down control valve 14, automatically keeps
Vapor (steam) temperature is stablized in setting value；
Master controller and concentration meter 30, pressure transmitter 15, control valve 16 form a PID brix control loop, control through 2 grades
The brix of heavy syrup is stablized after evaporation, and when syrup brix is higher than setting value, master controller turns down control valve 16, when syrup is hammered into shape
When degree is lower than setting value, master controller opens big control valve 16, and the brix for automatically keeping the heavy syrup after 2 grades of evaporations is stablized；
Master controller and pressure transmitter 17, fluid level transmitter 18, control valve 19 form a liquid level control loop, control 1# drop
The level stability of syrup in film evaporator 2, when syrup liquid level is higher than setting value, master controller turns down control valve 19, works as syrup
When liquid level is lower than setting value, master controller opens big control valve 19, automatically keeps the level stability of syrup in 1# falling film evaporator 2；
Master controller and flowmeter 23, control valve 22 form a flow control circuit, main when syrup flow is lower than setting value
Controller intelligently opens big control valve 22, and the liquid total flow automatically controlled into 1# falling film evaporator 2 is maintained at certain value, prevents
Dry blowing；
Master controller and fluid level transmitter 27, pressure transmitter 26, control valve 24 form 3 Liquid level of 2# falling film evaporator and return
Road, when liquid level is higher than setting value, master controller turns down control valve 24, and when liquid level is lower than setting value, master controller is intelligently
Big control valve 24 is opened, the stabilization of liquid level is automatically kept；
Master controller and flowmeter 28, control valve 29 form a flow control circuit, when the flow of syrup is less than setting value,
Master controller opens big control valve 29, automatically keeps the total flow of the syrup and water into 2# falling film evaporator 3, prevents dry blowing；
Master controller and control valve 31, flowmeter 32 form a flow control circuit, when flow is greater than the set value, main control
Device turns down control valve 31, and when flow is less than setting value, master controller opens big control valve 31, and the syrup after automatically keeping concentration is fixed
Amount supplies subsequent workshop section.
Main controller controls pump 5 and 6 wheel of pump are used, and the syrup of 2 bottom of 1# falling film evaporator is pumped into 1# falling film evaporator 2
Top is evaporated, and when the syrup in 2 bottom of 1# falling film evaporator is drained, main controller controls pump 5 and pump 6 are shut down, and is guaranteed
The safety of pump；Syrup by the evaporation of 2 level-one of 1# falling film evaporator is sent to 2# falling film evaporator 3 through pipeline G13 and continues second level steaming
Hair.
Main controller controls pump 7 and 8 wheel of pump are used, and the syrup of 3 bottom of 2# falling film evaporator is pumped into 2# falling film evaporator 3
Top is evaporated, and when the syrup in 3 bottom of 2# falling film evaporator is drained, main controller controls pump 7 and pump 8 are shut down, and is guaranteed
The safety of pump.
Main controller controls pump 9 and 10 wheel of pump are used, and the syrup evaporated by 2# falling film evaporator 3 is sent to subsequent work
Section, and when the syrup in 3 bottom of 2# falling film evaporator is drained, main controller controls pump 9 and pump 10 are shut down, and guarantee the peace of pump
Entirely.
The master controller uses DCS or PLC control system, if DCS also controls the other parts in sugar refinery, control point
It is more, DCS can be selected, the brands such as Siemens, ABB, Ai Mosheng, Honeywell, the Yokogawa of import can be selected, state can also be selected
The brands such as control in the Zhejiang of production, Hollysys, remote, Xinhua, section, difference is little in performance, if only controlling evaporation section, can be selected
The PLC of Siemens S7-1200.
The process flow of the application is as follows:
Steam pipework:
Steam enters heater through pipeline G5, for heating syrup；
Steam enters 1# falling film evaporator steam drum through pipeline G1, is used for evaporating sugar-molasses syrup moisture；
The juice vapour that 1# falling film evaporator generates enters 2# falling film evaporator steam drum through pipeline G2, is used for evaporating sugar-molasses syrup moisture.
Syrup conduit:
After the syrup for needing to evaporate enters heater heating from pipeline G3, enter 1# falling film evaporator bottom through pipeline G4, then by
Pump 5 and pump 6, which are pumped through pipeline G6, G7, G8, G9 to the top of 1# falling film evaporator, enters evaporator progress level-one evaporation, then passes through
Piping G13 enters 2# falling film evaporator bottom, is pumped by pipeline G14, G15, G16, G17 to 2# falling film evaporation by pump 7, pump 8
The top of device enter evaporator carry out dual evaporation, the heavy syrup evaporated by pump 9 and pump 10 pass through pipeline G18, G19,
G20, G21 are sent to subsequent workshop section.
Hot water line:
Hot water enters the top of 1# falling film evaporator through pipeline G10, G11, and the top of 2# falling film evaporator is entered through pipeline G10, G12
Portion avoids syrup is very few from leading to dry blowing.
Vapor condensed water and on-condensible gas pipeline do not need to be controlled.
The invention has the advantages that
1, when producing normal, the automation and intelligentification of unmanned intervention operation is realized, production process is maintained at preferable efficient
On rate, high-quality, low power consuming are horizontal, while the data of production process realize automatic storage, printing, upload etc., reach
The very high level of IT application, therefore, this intelligence control system can be the green of sugar manufacturing industry, low-carbon, cycle development, raising synthesis
The positive effect of profit point；
2, there is system detection temperature, flow and brix to automatically control the aperture of each motor-operated control valve, realize to falling film evaporator
Evaporation process carries out intelligent control, adapts to the production requirement of industry spot completely, and is able to maintain well under rugged environment
Accuracy；
3, system man-machine interface is friendly, and simple and clear, easy to operate, maintenance is few；
4, this system is at low cost, and consumptive material is few, and produce effects height, if the sugar manufacturing industry in China is promoted the use of, it will give entire industry band
Carry out huge economic and energy saving emission reduction benefit；
5, present invention sugaring falling film evaporation intelligence control system, realizes and carries out intelligent control to falling film evaporator evaporation process,
Evaporation performance is improved, steam consumption is reduced, reduces sugar transition, reduces fouling, effectively control vapor condensed water containing sugar etc. place
In the leading level in the world.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present invention sugaring falling film evaporation intelligence control system；
Wherein, figure label and title are as follows: heater -1,1# falling film evaporator -2,2# falling film evaporator -3, condensation water tank -4,
Pump -5~10, pressure transmitter -11, control valve -12, thermal resistance -13, control valve -14, pressure transmitter -15, control valve -16,
Pressure transmitter -17, fluid level transmitter -18, control valve -19, thermal resistance -20, control valve -21, control valve -22, flowmeter -
23, control valve -24, pressure transmitter -25, pressure transmitter -26, fluid level transmitter -27, flowmeter -28, control valve -29, hammer
Degree meter -30, control valve -31, flowmeter -32, flowmeter -33, control valve -34.
Specific embodiment
In order to keep technical solution of the present invention and advantage clearer, below with reference to case study on implementation of the invention, to this hair
Bright technical solution is clearly and completely described.
Referring to Fig. 1:
A kind of sugaring falling film evaporation intelligence control system, including heater 1,1# falling film evaporator 2,2# falling film evaporator 3, condensation
Water tank 4, pump 5~10, master controller, field instrument and cable；
Pipeline G3, G5 are connected with heater 1, and heater 1 is connected by pipeline G6 with condensation water tank 4, and heater 1 passes through pipeline G4
It is connected with 1# falling film evaporator 2, steam enters 1# falling film evaporator 2 by pipeline G1, and hot water enters 1# through piping G10, G11
2 top of falling film evaporator, 1# falling film evaporator 2 are connected by pipeline G6, G7, G8, G9 with pump 5, and 1# falling film evaporator 2 passes through pipe
Road G2 is connected with 2# falling film evaporator 3, and 2# falling film evaporator 3 is connected by pipeline G14, G15, G16, G17 with pump 7 and pump 8, heat
Water enters the top of 2# falling film evaporator 3 through piping G10, G12, evaporates the heavy syrup of completion from 3 lower part of 2# falling film evaporator
It is connected by pipeline G18, G19, G20, G21 with pump 9 and pump 10 and is sent to subsequent workshop section
Field instrument includes pressure transmitter 11, control valve 12, thermal resistance 13, control valve 14, pressure transmitter 15, control valve
16, pressure transmitter 17, fluid level transmitter 18, control valve 19, thermal resistance 20, control valve 21, control valve 22, flowmeter 23, control
Valve 24 processed, pressure transmitter 25, pressure transmitter 26, fluid level transmitter 27, flowmeter 28, control valve 29, concentration meter 30, control
Valve 31, flowmeter 32, flowmeter 33, control valve 34 and cable；
Pressure transmitter 11 is installed on jet chimney G1, measures steam pressure.
Control valve 12 is installed on the blow-down pipe of jet chimney, controls the emptying of steam.
Thermal resistance 13 is installed on jet chimney G1, measures the temperature of steam.
Control valve 14 is installed on jet chimney G1, controls the temperature of steam.
Pressure transmitter 15 and pressure transmitter 25 are respectively arranged on two falling film evaporator calandrias, and measurement falling liquid film steams
Send out the pressure of device calandria.
Control valve 16 is installed on the steam inlet duct G1 of 1# falling film evaporator, controls the pressure of steam.
Pressure transmitter 17 and pressure transmitter 26 are respectively arranged in two falling film evaporator lower parts, measure falling film evaporator
The pressure of lower part.
Fluid level transmitter 18 and fluid level transmitter 27 are respectively arranged in two falling film evaporator lower parts, measure falling film evaporator
Liquid level.
Control valve 19 and control valve 24 are respectively arranged on syrup inlet pipeline G4, G13 of 2 falling film evaporators, control
The liquid level of falling film evaporator.
Thermal resistance 20 is installed on the syrup inlet pipeline G4 of 1# falling film evaporator, and the syrup of measurement 1# falling film evaporator enters
Mouth temperature.
Control valve 21 is installed on the inlet steam pipeline G5 of heater, controls the temperature of heater outlet syrup.
Control valve 22 and control valve 29 are respectively arranged on two falling film evaporator hot water inlet's pipelines G11, G12, control
Enter the flow of water.
Flowmeter 23 and flowmeter 28 are respectively arranged on syrup reflux line G9, G17 of two falling film evaporators, measurement
Syrup flow.
Control valve 24 is installed on pipeline G13, controls the liquid level of 2# falling film evaporator.
Concentration meter 30 is installed on pipeline G21, measures syrup brix.
Control valve 31 and flowmeter 32 are installed on pipeline G21, measurement and control syrup flow.
Flowmeter 33 and control valve 34 are installed on pipeline G3, measurement and control syrup flow.
Field instrument passes through cable respectively and is connected with the cabinet of DCS or PLC, and pump 5~10 passes through cable and master controller
Cabinet is connected.
The sugaring falling film evaporation intelligence control system realizes the control to sugaring falling film evaporation by following control loops:
Master controller and flowmeter 33, control valve 34 form a flow control circuit, when flow is greater than the set value, main control
Device turns down control valve 34, when flow is less than setting value, opens big control valve 34, automatically keeps the stabilization of flow；
Master controller and thermal resistance 20, control valve 21 form a temperature control loop, main when syrup temp is more than setting value
Controller turns down control valve 21, and when syrup temp is lower than setting value, master controller opens big control valve 21, automatically keeps syrup temperature
Degree is stable at setting value；
Master controller and pressure transmitter 11, control valve 12 form a pressure control loop, when steam pressure is higher than setting value
When, master controller opens big control valve 12, and when steam pressure is lower than setting value, master controller turns down control valve 12, automatically keeps
Steam pressure is stable at setting value；
Master controller and thermal resistance 13, control valve 14 form a temperature control loop, main when vapor (steam) temperature is higher than setting value
Controller opens big control valve 14, and when vapor (steam) temperature is lower than setting value, master controller intelligently turns down control valve 14, automatically keeps
Vapor (steam) temperature is stablized in setting value；
Master controller and concentration meter 30, pressure transmitter 15, control valve 16 form a PID brix control loop, control through 2 grades
The brix of heavy syrup is stablized after evaporation, and when syrup brix is higher than setting value, master controller turns down control valve 16, when syrup is hammered into shape
When degree is lower than setting value, master controller opens big control valve 16, and the brix for automatically keeping the heavy syrup after 2 grades of evaporations is stablized；
Master controller and pressure transmitter 17, fluid level transmitter 18, control valve 19 form a liquid level control loop, control 1# drop
The level stability of syrup in film evaporator 2, when syrup liquid level is higher than setting value, master controller turns down control valve 19, works as syrup
When liquid level is lower than setting value, master controller opens big control valve 19, automatically keeps the level stability of syrup in 1# falling film evaporator 2；
Master controller and flowmeter 23, control valve 22 form a flow control circuit, main when syrup flow is lower than setting value
Controller intelligently opens big control valve 22, and the liquid total flow automatically controlled into 1# falling film evaporator 2 is maintained at certain value, prevents
Dry blowing；
Master controller and fluid level transmitter 27, pressure transmitter 26, control valve 24 form 3 Liquid level of 2# falling film evaporator and return
Road, when liquid level is higher than setting value, master controller turns down control valve 24, and when liquid level is lower than setting value, master controller is intelligently
Big control valve 24 is opened, the stabilization of liquid level is automatically kept；
Master controller and flowmeter 28, control valve 29 form a flow control circuit, when the flow of syrup is less than setting value,
Master controller opens big control valve 29, automatically keeps the total flow of the syrup and water into 2# falling film evaporator 3, prevents dry blowing；
Master controller and control valve 31, flowmeter 32 form a flow control circuit, when flow is greater than the set value, main control
Device turns down control valve 31, and when flow is less than setting value, master controller opens big control valve 31, and the syrup after automatically keeping concentration is fixed
Amount supplies subsequent workshop section.
Main controller controls pump 5 and 6 wheel of pump are used, and the syrup of 2 bottom of 1# falling film evaporator is pumped into 1# falling film evaporator 2
Top is evaporated, and when the syrup in 2 bottom of 1# falling film evaporator is drained, main controller controls pump 5 and pump 6 are shut down, and is guaranteed
The safety of pump；Syrup by the evaporation of 2 level-one of 1# falling film evaporator is sent to 2# falling film evaporator 3 through pipeline G13 and continues second level steaming
Hair.
Main controller controls pump 7 and 8 wheel of pump are used, and the syrup of 3 bottom of 2# falling film evaporator is pumped into 2# falling film evaporator 3
Top is evaporated, and when the syrup in 3 bottom of 2# falling film evaporator is drained, main controller controls pump 7 and pump 8 are shut down, and is guaranteed
The safety of pump.
Main controller controls pump 9 and 10 wheel of pump are used, and the syrup evaporated by 2# falling film evaporator 3 is sent to subsequent work
Section, and when the syrup in 3 bottom of 2# falling film evaporator is drained, main controller controls pump 9 and pump 10 are shut down, and guarantee the peace of pump
Entirely.
Master controller uses DCS or PLC control system.
The above description is not a limitation of the present invention, and the present invention is also not limited to examples detailed above, the art it is general
Logical technical staff, within the essential scope of the present invention, the variations, modifications, additions or substitutions made all should belong to guarantor of the invention
Protect range.
Claims (7)
1. a kind of sugaring falling film evaporation intelligence control system, which is characterized in that including heater (1), 1# falling film evaporator (2),
2# falling film evaporator (3), condensation water tank (4), pump (5~10), master controller, field instrument and cable；
Pipeline G3, G5 are connected with heater (1), and heater (1) is connected by pipeline G6 with condensation water tank (4), and heater (1) is logical
Piping G4 is connected with 1# falling film evaporator (2), and steam enters 1# falling film evaporator (2) by pipeline G1, and hot water is through piping
G10, G11 enter at the top of 1# falling film evaporator (2), and 1# falling film evaporator (2) is connected by pipeline G6, G7, G8, G9 with pump (5),
1# falling film evaporator (2) is connected by pipeline G2 with 2# falling film evaporator (3), 2# falling film evaporator (3) pass through pipeline G14,
G15, G16, G17 are connected with pump (7) and pump (8), and hot water enters at the top of 2# falling film evaporator (3) through piping G10, G12, evaporation
The heavy syrup of completion is connected by pipeline G18, G19, G20, G21 with pump (9) and pump (10) from 2# falling film evaporator (3) lower part
It is sent to subsequent workshop section.
2. falling film evaporation intelligence control system of refining sugar according to claim 1, it is characterised in that: the field instrument includes pressure
Power transmitter (11), control valve (12), thermal resistance (13), control valve (14), pressure transmitter (15), control valve (16), pressure
Transmitter (17), fluid level transmitter (18), control valve (19), thermal resistance (20), control valve (21), control valve (22), flowmeter
(23), control valve (24), pressure transmitter (25), pressure transmitter (26), fluid level transmitter (27), flowmeter (28), control
Valve (29), concentration meter (30), control valve (31), flowmeter (32), flowmeter (33), control valve (34) and cable；
Pressure transmitter (11) is installed on jet chimney G1, measures steam pressure；
Control valve (12) is installed on the blow-down pipe of jet chimney, controls the emptying of steam；
Thermal resistance (13) is installed on jet chimney G1, measures the temperature of steam；
Control valve (14) is installed on jet chimney G1, controls the temperature of steam；
Pressure transmitter (15) and pressure transmitter (25) are respectively arranged on two falling film evaporator calandrias, and measurement falling liquid film steams
Send out the pressure of device calandria；
Control valve (16) is installed on the steam inlet duct G1 of 1# falling film evaporator, controls the pressure of steam；
Pressure transmitter (17) and pressure transmitter (26) are respectively arranged in two falling film evaporator lower parts, measure falling film evaporator
The pressure of lower part；
Fluid level transmitter (18) and fluid level transmitter (27) are respectively arranged in two falling film evaporator lower parts, measure falling film evaporator
Liquid level；
Control valve (19) and control valve (24) are respectively arranged on syrup inlet pipeline G4, G13 of 2 falling film evaporators, control
The liquid level of falling film evaporator；
Thermal resistance (20) is installed on the syrup inlet pipeline G4 of 1# falling film evaporator, measures the syrup inlet of 1# falling film evaporator
Temperature；
Control valve (21) is installed on the inlet steam pipeline G5 of heater, controls the temperature of heater outlet syrup；
Control valve (22) and control valve (29) are respectively arranged on two falling film evaporator hot water inlet's pipelines G11, G12, control
Enter the flow of water；
Flowmeter (23) and flowmeter (28) are respectively arranged on syrup reflux line G9, G17 of two falling film evaporators, measurement
Syrup flow；
Control valve (24) is installed on pipeline G13, controls the liquid level of 2# falling film evaporator；
Concentration meter (30) is installed on pipeline G21, measures syrup brix；
Control valve (31) and flowmeter (32) are installed on pipeline G21, measurement and control syrup flow；
Flowmeter (33) and control valve (34) are installed on pipeline G3, measurement and control syrup flow；
Above-mentioned field instrument passes through cable respectively and is connected with the cabinet of DCS or PLC, and pump (5~10) passes through cable and master controller
Cabinet be connected.
3. falling film evaporation intelligence control system of refining sugar according to claim 1, it is characterised in that: the sugaring falling film evaporation intelligence
It can control system and realize the control to sugaring falling film evaporation by following control loops:
Master controller and flowmeter (33), control valve (34) form a flow control circuit, main when flow is greater than the set value
Controller turns down control valve (34), when flow is less than setting value, opens big control valve (34), automatically keeps the stabilization of flow；
Master controller and thermal resistance (20), control valve (21) form a temperature control loop, when syrup temp is more than setting value
When, master controller turns down control valve (21), and when syrup temp is lower than setting value, master controller opens big control valve (21), automatically
Syrup temp is kept to be stable at setting value；
Master controller and pressure transmitter (11), control valve (12) form a pressure control loop, set when steam pressure is higher than
When definite value, master controller opens big control valve (12), and when steam pressure is lower than setting value, master controller turns down control valve (12),
It automatically keeps steam pressure and is stable at setting value；
Master controller and thermal resistance (13), control valve (14) form a temperature control loop, when vapor (steam) temperature is higher than setting value
When, master controller opens big control valve (14), and when vapor (steam) temperature is lower than setting value, master controller intelligently turns down control valve
(14), vapor (steam) temperature is automatically kept to stablize in setting value；
Master controller and concentration meter (30), pressure transmitter (15), control valve (16) form a PID brix control loop, control
The brix for making the heavy syrup after 2 grades of evaporations is stablized, and when syrup brix is higher than setting value, master controller turns down control valve
(16), when syrup brix is lower than setting value, master controller opens big control valve (16), automatically keeps and sugar is concentrated after 2 grades of evaporations
The brix of slurry is stablized；
Master controller and pressure transmitter (17), fluid level transmitter (18), control valve (19) form a liquid level control loop, control
The level stability of the interior syrup of 1# falling film evaporator (2) processed, when syrup liquid level is higher than setting value, master controller turns down control valve
(19), when syrup liquid level is lower than setting value, master controller opens big control valve (19), automatically keeps in 1# falling film evaporator (2)
The level stability of syrup；
Master controller and flowmeter (23), control valve (22) form a flow control circuit, when syrup flow is lower than setting value
When, master controller is intelligently opened big control valve (22), is automatically controlled the liquid total flow into 1# falling film evaporator (2) and is maintained at
Certain value, prevents dry blowing；
Master controller and fluid level transmitter (27), pressure transmitter (26), control valve (24) form 2# falling film evaporator (3) liquid level
Control loop, when liquid level is higher than setting value, master controller turns down control valve (24), when liquid level is lower than setting value, main control
Device intelligently opens big control valve (24), automatically keeps the stabilization of liquid level；
Master controller and flowmeter (28), control valve (29) form a flow control circuit, when the flow of syrup is less than setting
When value, master controller opens big control valve (29), automatically keeps the total flow of the syrup and water into 2# falling film evaporator (3), prevents
Only dry blowing；
Master controller and control valve (31), flowmeter (32) form a flow control circuit, main when flow is greater than the set value
Controller turns down control valve (31), and when flow is less than setting value, master controller opens big control valve (31), after automatically keeping concentration
The subsequent workshop section of syrup rationing.
4. falling film evaporation intelligence control system of refining sugar according to claim 1, it is characterised in that: main controller controls pump (5)
It takes turns and uses with pump (6), the syrup of 1# falling film evaporator (2) bottom is pumped at the top of 1# falling film evaporator (2) and is evaporated, in 1#
When the syrup of falling film evaporator (2) bottom is drained, main controller controls pump (5) and pump (6) is shut down, and guarantee the safety of pump；Through
The syrup for crossing the evaporation of 1# falling film evaporator (2) level-one is sent to 2# falling film evaporator (3) through pipeline G13 and continues dual evaporation.
5. falling film evaporation intelligence control system of refining sugar according to claim 1, it is characterised in that: main controller controls pump (7)
It takes turns and uses with pump (8), the syrup of 2# falling film evaporator (3) bottom is pumped at the top of 2# falling film evaporator (3) and is evaporated, in 2#
When the syrup of falling film evaporator (3) bottom is drained, main controller controls pump (7) and pump (8) is shut down, and guarantee the safety of pump.
6. falling film evaporation intelligence control system of refining sugar according to claim 1, it is characterised in that: main controller controls pump (9)
It takes turns and uses with pump (10), the syrup evaporated by 2# falling film evaporator (3) is sent to subsequent workshop section, and in 2# falling film evaporator
(3) when the syrup of bottom is drained, main controller controls pump (9) and pump (10) is shut down, and guarantee the safety of pump.
7. falling film evaporation intelligence control system of refining sugar according to claim 1, it is characterised in that: the master controller uses
DCS or PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520468.8A CN109504809A (en) | 2018-12-12 | 2018-12-12 | Sugaring falling film evaporation intelligence control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520468.8A CN109504809A (en) | 2018-12-12 | 2018-12-12 | Sugaring falling film evaporation intelligence control system |
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| Publication Number | Publication Date |
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| CN109504809A true CN109504809A (en) | 2019-03-22 |
Family
ID=65752282
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811520468.8A Pending CN109504809A (en) | 2018-12-12 | 2018-12-12 | Sugaring falling film evaporation intelligence control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110592291A (en) * | 2019-10-22 | 2019-12-20 | 中国轻工业南宁设计工程有限公司 | Intelligent sugar-making evaporation control system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811743A (en) * | 2010-04-09 | 2010-08-25 | 兰州节能环保工程有限责任公司 | Circulation evaporator |
| CN102925593A (en) * | 2012-11-02 | 2013-02-13 | 中国轻工业南宁设计工程有限公司 | Sugar boiling automatic control device |
| WO2014033621A1 (en) * | 2012-08-28 | 2014-03-06 | Tongaat Hulett Limited | Process for refining impure crystallised sucrose |
| CN103981291A (en) * | 2014-05-19 | 2014-08-13 | 广西大学 | Cane sugar manufacture production system |
| CN104805224A (en) * | 2015-04-02 | 2015-07-29 | 广西大学 | Originally ecological black sugar processing device |
| CN104946802A (en) * | 2015-06-29 | 2015-09-30 | 南宁糖业股份有限公司 | Automatic control system of intermittent sugar boiling containers in cane sugar factories |
| CN205773465U (en) * | 2016-06-16 | 2016-12-07 | 恒天中纤纺化无锡有限公司 | A kind of chinlon 6 section monomer water reclamation system |
| CN107445233A (en) * | 2017-09-05 | 2017-12-08 | 王旭 | A kind of mechanical compression type multiple-effect distillation seawater desalination system of Coupling Water-source Heat Pump |
| CN207031012U (en) * | 2017-08-03 | 2018-02-23 | 天津中工环能节能环保科技有限公司 | A kind of high-salt wastewater concentrating and treating system |
| CN210560498U (en) * | 2018-12-12 | 2020-05-19 | 中国轻工业南宁设计工程有限公司 | Sugar-making falling film evaporation intelligent control system |
-
2018
- 2018-12-12 CN CN201811520468.8A patent/CN109504809A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811743A (en) * | 2010-04-09 | 2010-08-25 | 兰州节能环保工程有限责任公司 | Circulation evaporator |
| WO2014033621A1 (en) * | 2012-08-28 | 2014-03-06 | Tongaat Hulett Limited | Process for refining impure crystallised sucrose |
| CN104769135A (en) * | 2012-08-28 | 2015-07-08 | 托亚特胡立特公司 | Process for refining impure crystallized sucrose |
| CN102925593A (en) * | 2012-11-02 | 2013-02-13 | 中国轻工业南宁设计工程有限公司 | Sugar boiling automatic control device |
| CN103981291A (en) * | 2014-05-19 | 2014-08-13 | 广西大学 | Cane sugar manufacture production system |
| CN104805224A (en) * | 2015-04-02 | 2015-07-29 | 广西大学 | Originally ecological black sugar processing device |
| CN104946802A (en) * | 2015-06-29 | 2015-09-30 | 南宁糖业股份有限公司 | Automatic control system of intermittent sugar boiling containers in cane sugar factories |
| CN205773465U (en) * | 2016-06-16 | 2016-12-07 | 恒天中纤纺化无锡有限公司 | A kind of chinlon 6 section monomer water reclamation system |
| CN207031012U (en) * | 2017-08-03 | 2018-02-23 | 天津中工环能节能环保科技有限公司 | A kind of high-salt wastewater concentrating and treating system |
| CN107445233A (en) * | 2017-09-05 | 2017-12-08 | 王旭 | A kind of mechanical compression type multiple-effect distillation seawater desalination system of Coupling Water-source Heat Pump |
| CN210560498U (en) * | 2018-12-12 | 2020-05-19 | 中国轻工业南宁设计工程有限公司 | Sugar-making falling film evaporation intelligent control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110592291A (en) * | 2019-10-22 | 2019-12-20 | 中国轻工业南宁设计工程有限公司 | Intelligent sugar-making evaporation control system |
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