CN208711451U - A kind of positive infiltration-membrane distillation coupling concentration of juices device - Google Patents
A kind of positive infiltration-membrane distillation coupling concentration of juices device Download PDFInfo
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- CN208711451U CN208711451U CN201820939480.1U CN201820939480U CN208711451U CN 208711451 U CN208711451 U CN 208711451U CN 201820939480 U CN201820939480 U CN 201820939480U CN 208711451 U CN208711451 U CN 208711451U
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Abstract
The utility model discloses a kind of positive infiltration-membrane distillations to couple concentration of juices device, which includes the positive infiltration concentration of juices circulatory system, draws the agent membrane distillation circulatory system and control cabinet, and two circulatory systems are connected by forward osmosis membrane component.Fruit juice is pumped into forward osmosis membrane component by fruit juice circulating pump by fruit juice storage tank, and fruit juice is completed concentration of juices by flowing back to fruit juice storage tank after positive osmosis concentration and recycled, and moisture penetration is to drawing in agent in fruit juice；It draws agent and is pumped into distillation device by drawing agent circulating pump, forward osmosis membrane component is flowed back to after membrane distillation concentration, agent circulation is drawn in completion, and the moist part drawn in agent penetrates into condensate liquid；Condensate liquid is pumped into condensation water tank by condensate water circulatory, comes back to distillation device after entering back into the cooling of compression condensation device, completes condensing agent circulation.The utility model retains the nutritional ingredient of inspissated juice using positive infiltration technology, draws agent in the positive infiltration of membrane distillation processing, prevents it from diluting increase with time.
Description
Technical field
The utility model relates to food processing technology field more particularly to concentration technique of fruit juice, specially utilize membrane distillation
With the concentration of juices system of positive infiltration coupling processing.The utility model is mainly special using positive infiltration and the distinctive technique of membrane distillation
Sign leads the concentration of juices that the coupling of two-stage membrane separation technique is applied to heat sensitive material, to improve concentration of juices quality.
Background technique
The water content of original fruit juice is very high, and usually 80%~85% or more, storage process is easy to happen brown stain and functional battalion
The property formed point becomes.Fruit juice is a kind of good fruit storage method by concentration, and concentration technology can be the solid of original fruit juice
Object content is increased to 60%~75% from 5%~20%, and this inspissated juice has quite high biochemical stability.It can be significantly after concentration of juices
It reduces packaging, transport and the cost of storage, Shelf-life and facilitates sale and consumption.The common industrial method of concentration of juices has
Evaporation and concentration and freeze concentration.Evaporating and concentrating process is its essence is the moisture in fruit juice is evaporated by heating, to reach dense
Contracting purpose.Based on evaporation technology, the evaporation and concentration of fruit juice can have the following problems: (1) high-temperature heating of evaporating concentration process makes
Many beneficiating ingredients in fruit juice are easy to be destroyed, such as lead to the loss of aromatic substance；(2) due to evaporating concentration process
In, the evaporation of water needs to consume big energy, and the cooling requirement of water vapour consumes a large amount of water, therefore is concentrated by evaporation and does not belong in fact
In energy saving and environment friendly technique.
Freeze concentration is to utilize the solid-liquid phase equilibrium principle between ice and aqueous solution.By water in a solid state from solution
A kind of method for concentration of removal.Technology for freeze concentration substantially remains most substance contained by Normal juice, but in separation ice crystal
When inevitably lose a part of inspissated juice.For the angle of collateral security product quality, freeze concentration is to industrialize at present
A kind of one of common concentration technique of fruit juice of application field.But the maximum enrichment of freeze concentration juice is by ice crystal-inspissated juice
The limitation of the viscosity of mixture, can only achieve 40~500Brix；It is difficult to generate ice crystal when material viscosity is high, it is difficult to recycle attached
Soluble solid and some effective components on ice crystal, and its equipment investment and operating cost are all higher, production capacity is small,
These all limit its popularization and application.
With energy conservation and environmental awareness be increasingly enhanced and proposition of the people to high-quality inspissated juice demand, above-mentioned tradition fruit
Juice concentration technology has faded in disadvantage.In recent years, micro-filtration (Microfiltration, MF), ultrafiltration (Ultrafiltration,
UF), the membrane separation techniques such as nanofiltration (Nanofiltration, NF) and reverse osmosis (Reverse Osmosis, RO) often by with
To be clarified fruit juice and be concentrated.Compared with traditional evaporation, such membrane separation technique has the advantage that fruit juice normal
The lower concentration of temperature, does not undergo phase transition, is conducive to the reservation of nutritional ingredient and flavor substance in fruit juice.But these membrane separating process often can
Since concentration polarization and the presence of fouling membrane make maximum concentration can only achieve 25~30oBrix, to occur by cycles of concentration
The situation of limitation.This also makes such membrane separation technique slowly fail preferably to be applied.
Positive infiltration (Forward Osmosis, FO), membrane distillation with low energy consumption, low environmental impact load character
More and more attention has been paid to and have become feed separation field to membrane separation techniques such as (Membrane Distillation, MD)
The hot spot of research.Positive infiltration (FO) process drives by the permeable pressure head of film two sides, keeps water spontaneous from the lower (raw material of osmotic pressure
Liquid) side enter the side of osmotic pressure higher (drawing liquid), be not necessarily to impressed pressure in this process, energy consumption is lower.Just
Process of osmosis carries out concentration of juices at normal temperatures and pressures, it is ensured that its quality will not reduce, and the pollution of film is seldom, increase
The service life of film, greatly reduces processing cost in treatment process.But it is single use existing dense when positive infiltration technology
Contracting efficiency can passage at any time and the problem of reduce.
Membrane distillation (MD) is the product that Conventional espresso technology is combined with Modern Membrane Technology, it is with the steaming of film two sides
Steam pressure difference is the membrane separating process of mass transfer driving force.It can be applied to the separation of high concentration heat sensitive material.But it is used alone
There is technological deficiency.
Utility model content
The purpose of this utility model is that solving high energy existing for traditional evaporation inspissated juice using FO-MD coupling technique
Consumption problem and beneficiating ingredient and flavor substance problem in destruction fruit juice, and pass through coupling technique and solve that positive infiltration skill is used alone
When art existing thickening efficiency can passage at any time and the problem of reduce.The purpose of this utility model is by following technical side
What case was realized.
A kind of positive infiltration-membrane distillation coupling concentration of juices device, including just permeating the concentration of juices circulatory system, drawing agent film
The circulatory system and control cabinet are distilled, the positive infiltration concentration of juices circulatory system is controlled by control cabinet and draws the agent membrane distillation circulatory system
Operation；The positive infiltration concentration of juices circulatory system with draw the agent membrane distillation circulatory system and connected by a forward osmosis membrane component；Just
Fruit juice area is divided into as boundary using forward osmosis membrane inside permeable membrane element and draws agent area；
The liquid outlet in the fruit juice area passes through the inlet of one fruit juice storage tank of piping connection, and the inlet in fruit juice area passes through
The liquid outlet of one fruit juice circulating pump of piping connection, the liquid outlet of fruit juice storage tank pass through the feed liquor of piping connection fruit juice circulating pump
Mouthful, constitute the positive infiltration concentration of juices circulatory system；
It is described draw agent area and a distillation device, one draw agent circulating pump, a compression condensation device, one it is cold
Condensation tank, a condensate water circulatory pump are by drawing the agent membrane distillation circulatory system described in piping connection composition；
The agent membrane distillation circulatory system of drawing includes drawing the agent circulatory system and condensate circulation system, distillation device
It is inside provided with using dewatering microporous film as the high-temperature region on boundary and condensing zone；
The inlet of the high-temperature region passes through the liquid outlet for drawing agent area of piping connection forward osmosis membrane component, high-temperature region
Liquid outlet draws the inlet of agent circulating pump by piping connection, and the liquid outlet for drawing agent circulating pump is just permeated by piping connection
The inlet for drawing agent area of membrane module draws the agent circulatory system described in composition；
The inlet of the condensing zone passes through the liquid outlet of piping connection compression condensation device, the feed liquor of compression condensation device
Mouth passes through the liquid outlet of piping connection condensation water tank, and the inlet of condensation water tank goes out liquid by what piping connection condensate water circulatory pumped
Mouthful, the inlet of condensate water circulatory pump forms the condensate circulation system by the liquid outlet of condensing zone described in piping connection.
Further, the distillation device includes that a water tank and multiple dewatering microporous film pipe fittings, water tank are divided into internal layer
The water cavity for drawing agent storage chamber and outer layer, be not connected between inside and outside two layers of cavity, be provided with heating device in the water cavity in outside
It is provided with the agent storage chamber that draws of water temperature electrode, internal layer and draws agent outlet and draw agent import and respectively by a piping connection
To outside water tank；The front and back two sides bottom of tank outer wall respectively have a groove surface directly with draw agent storage chamber and be connected, two grooves
Multipair corresponding through-hole is provided on face for installing dewatering microporous film pipe fitting, the both ends of dewatering microporous film pipe fitting are logical with two sides respectively
Hole is tightly connected, and is the condensing zone in dewatering microporous film pipe fitting, is passed through condensate liquid, draws agent outside dewatering microporous film pipe fitting
It is high-temperature region in storage chamber, is passed through and draws agent, condensing zone and high-temperature region is separated by dewatering microporous film；Dewatering microporous film is PVDF
Hollow-fibre membrane.
Further, it draws agent storage chamber and is provided with 4 root canal roads and be connected to outside water tank, wherein two root canal roads are respectively as height
The inlet tube and outlet tube of warm area, in addition two are equipped with liquid-level floater.
Further, pressure sensor is provided in the fruit juice storage tank；Connect fruit juice storage tank and forward osmosis membrane component fruit
Online conductivity meter and juice temperature electrode are provided on the connecting line in juice area；Connection forward osmosis membrane component draws agent area and film
It is provided on the pipeline of distilling apparatus high-temperature region and draws agent temperature electrode；Setting muti-piece detects instrument and shows respectively respectively in control cabinet
A temperature electrode, conductivity gauge, pressure sensor numerical value.
Further, concentration of juices device is also equipped with high-low-position liquid level alarm, fills in fruit juice storage tank, distillation device
There is low liquid level switch, condensation water tank is provided with high level switch.
Further, the condensation water tank is connected with a spill box.
Further, the forward osmosis membrane of forward osmosis membrane component is installed in the form of pipeline, and forward osmosis membrane pipeline is using by all kinds of means
Groove type.
The utility model has the advantages that
The utility model uses " positive infiltration-membrane distillation " coupling technique, can be realized at normal temperatures and pressures using positive infiltration
The inspissation of fruit juice guarantees that nutritional ingredient is not destroyed in fruit juice, and handles positive infiltration by distillation device and ran
Agent is drawn in journey, prevents from drawing agent as time increases and dilutes influence concentrated effect.
Automatic operating can be used in package unit, is not necessarily to manual switching, and be equipped with two position warning device, prevents
Contingency.
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.
Detailed description of the invention
Fig. 1 is the utility model concentration of juices device overall structure diagram；
Fig. 2 is the utility model concentration of juices schematic diagram of device；
Fig. 3 is the utility model distillation device structural schematic diagram；
Fig. 4 is positive 1 structural schematic diagram of permeable membrane element component；
Fig. 5 is positive 2 structural schematic diagram of permeable membrane element component.
Appended drawing reference:
1. fruit juice storage tank；2. pressure sensor；3. fruit juice circulating pump；4. online conductivity meter；5. juice temperature electrode；6.
Forward osmosis membrane component；7. drawing agent temperature electrode；8. heating device；9. water temperature electrode；10. distillation device；11. drawing agent to follow
Ring pump；12. condensate water circulatory pumps；13. compression condensation device；14. condensation water tank；15. spill box.10-1. draws agent storage
Chamber；10-2. water cavity；10-3. groove surface；10-4. dewatering microporous film pipe fitting.
Specific embodiment
As shown in Figure 1, 2, a kind of positive infiltration-membrane distillation couples concentration of juices device, including is just permeating concentration of juices circulation
System draws the agent membrane distillation circulatory system and control cabinet, controls the positive infiltration concentration of juices circulatory system by control cabinet and draws agent
The operation of the membrane distillation circulatory system；The positive infiltration concentration of juices circulatory system passes through a positive infiltration with the agent membrane distillation circulatory system is drawn
Membrane module 6 connects；Fruit juice area is divided into as boundary using forward osmosis membrane inside forward osmosis membrane component 6 and draws agent area；
The liquid outlet in the fruit juice area passes through the inlet of one fruit juice storage tank 1 of piping connection, and the inlet in fruit juice area is logical
The liquid outlet of one fruit juice circulating pump 3 of piping connection is crossed, the liquid outlet of fruit juice storage tank 1 passes through piping connection fruit juice circulating pump 3
Inlet constitutes the positive infiltration concentration of juices circulatory system；
It is described draw agent area with one distillation device 10, one draw 11, compression condensation devices 13 of agent circulating pump,
One condensation water tank, 14, condensate water circulatory pumps 12 are by drawing the agent membrane distillation circulatory system described in piping connection composition；
The agent membrane distillation circulatory system of drawing includes drawing the agent circulatory system and condensate circulation system, distillation device
It is provided in 10 using dewatering microporous film as the high-temperature region on boundary and condensing zone；
The inlet of the high-temperature region passes through the liquid outlet for drawing agent area of piping connection forward osmosis membrane component 6, high-temperature region
Liquid outlet the inlet of agent circulating pump 11 is drawn by piping connection, the liquid outlet for drawing agent circulating pump 11 passes through piping connection
The inlet for drawing agent area of forward osmosis membrane component 6 draws the agent circulatory system described in composition；
The inlet of the condensing zone passes through the liquid outlet of piping connection compression condensation device 13, compression condensation device 13
Inlet passes through the liquid outlet of piping connection condensation water tank 14, and the inlet of condensation water tank 14 passes through piping connection condensate water circulatory
The liquid outlet of pump 12, the inlet of condensate water circulatory pump 12 are made up of described cold the liquid outlet of condensing zone described in piping connection
The lime set circulatory system.
As shown in figure 3, distillation device 10 includes a water tank and multiple dewatering microporous film pipe fitting 10-4, water tank is divided into interior
The water cavity 10-2 for drawing agent storage chamber 10-1 and outer layer of layer is not connected between inside and outside two layers of cavity, in the water cavity 10-2 in outside
It is provided with heating device 8 and water temperature electrode 9, the agent storage chamber 10-1 that draws of internal layer is provided with and draws agent outlet and draw agent import
And respectively pass through outside a piping connection to water tank；The front and back two sides bottom of tank outer wall respectively have a groove surface 10-3 directly with draw
Agent storage chamber 10-1 is taken to be connected, multipair corresponding through-hole is provided on two groove surface 10-3, and (the present embodiment is each 64 points of screw threads
Hole) for installing dewatering microporous film pipe fitting 10-4, the both ends of dewatering microporous film pipe fitting 10-4 are tightly connected with two side through hole respectively,
It is the condensing zone in dewatering microporous film pipe fitting 10-4, is passed through condensate liquid, draws agent storage outside dewatering microporous film pipe fitting 10-4
Depositing intracavitary is high-temperature region, is passed through and draws agent, and condensing zone and high-temperature region pass through dewatering microporous film and separate；Dewatering microporous film is in PVDF
Empty fiber membrane.
It draws agent storage chamber 10-1 and is provided with 4 root canal roads and be connected to outside water tank, wherein two root canal roads are respectively as high-temperature region
Inlet tube and outlet tube, in addition two are equipped with liquid-level floater.
Pressure sensor 2 is provided in fruit juice storage tank 1；Connect the connection of fruit juice storage tank 1 and 6 fruit juice area of forward osmosis membrane component
Online conductivity meter 4 and juice temperature electrode 5 are provided on pipeline；Connection forward osmosis membrane component 6 draws agent area and membrane distillation fills
It sets to be provided on the pipeline of 10 high-temperature regions and draws agent temperature electrode 7；Setting muti-piece detection instrument is shown each respectively in control cabinet
Temperature electrode, conductivity gauge, pressure sensor numerical value.
Concentration of juices device is also equipped with high-low-position liquid level alarm, is provided with low liquid in fruit juice storage tank 1, distillation device 10
Bit switch, condensation water tank 14 are provided with high level switch.
Condensation water tank 14 is connected with a spill box 15.
The forward osmosis membrane of forward osmosis membrane component 6 is installed in the form of pipeline, and forward osmosis membrane pipeline is using groove type by all kinds of means.Institute
It states forward osmosis membrane component to be made of component 1, component 2 and forward osmosis membrane, component 1 and component 2 are bolted, component 1
It is respectively set with the joint face of component 2 and is bent into multiple support channels, continuous and mutual corresponding groove (i.e. groove by all kinds of means
Shape), forward osmosis membrane is set between component 1 and component 2, fruit juice is respectively set in the groove in component 1 and component 2 and draws agent,
That is the groove of forward osmosis membrane two sides is respectively fruit juice area and draws agent area.
Forward osmosis membrane is only the film of a thickness 2mm, be can be not applied directly on separator, as shown in Figure 4, Figure 5, just
Permeable membrane element is divided into two pieces, and membrane module is processed using organic glass, long 120mm, width 95mm, thickness 20mm, component 1
A depth 4mm groove is opened by Fig. 4 at away from side 20mm, is leaked water in groove, groove opens up into outside module at two edges up and down, outside module
It is bonded a Pagoda-shaped connector, for connecting material system, component 2 falls in 1mm at away from side 10mm first, then away from side
4mm is fallen at 20mm, sticks thick 2mm according to Fig. 2 among two pieces of grooves, wide 8mm sealed silicon rubber mat, sealed silicon rubber mat is answered convex
Leak water in module 1mm out, 4mm groove, opened up into outside module at groove lower edges, a Pagoda-shaped connector is bonded outside module,
Agent system is drawn for connecting.Forward osmosis membrane is affixed on component 2 away from the 10mm groove of side, is fitted tightly in silicagel pad, two block films
Component fixes locking using screw, it is ensured that water-tight, two block film components add a piece of forward osmosis membrane to form a set of forward osmosis membrane group
Part.
The specific mounting means of this facilities and equipments overall structure are as follows:
Mainly using forward osmosis membrane can realize at normal temperatures and pressures the moisture in fruit juice to drawing the characteristics of agent side is mobile, with
Forward osmosis membrane is installed in forward osmosis membrane component 6 as condensation means, to realize fixed, sealing and exchange interaction.It is positive to seep
Permeable membrane component internal pipeline can make to draw the agent contact more as far as possible in membrane module with fruit juice, groove using groove type by all kinds of means
Two sides is equipped with gasket and prevents from revealing.For fruit juice major storage to be concentrated in fruit juice storage tank 1, fruit juice storage tank 1 is provided with pressure
Force snesor 2 can be stored up variation of the pot liquid to base pressure by fruit juice, show its real-time level value to monitor.Fruit juice can
The front end Xia Kou that forward osmosis membrane component 6 is squeezed by fruit juice circulating pump 3, by front end outflow membrane module suitable for reading after the completion of exchange,
Outflux is equipped with online conductivity meter 4 and juice temperature electrode 5, to monitor real-time status of the fruit juice in concentration process, most
After flow back in material pot, realize a circulation.
The back end line groove of forward osmosis membrane component 6 carrys out inflow and outflow for drawing agent, draws agent major storage in membrane distillation
In 10 intermediate water tank of device, distillation device is divided into inside and outside two layers, and inner layer major storage draws agent, and outer layer is tap water, can lead to
Crossing 8 the present embodiment of heating device is electrical bar to carry out heating and the realization monitoring temperature of water temperature electrode 9, passes through silicon-controlled PID
Control carries out constant temperature method, and inner layer water tank respectively has a root canal road to reach at tank outer wall up and down, and lower pipeline is outflow pipeline, leads to
It crosses to draw agent circulating pump 11 and will draw agent extraction and squeezes into 6 rear end Xia Kou of forward osmosis membrane component, then by rear end outflow suitable for reading, flow out
Mouth, which is equipped with, draws agent temperature electrode 7, and monitoring outflow temperature finally flows back to 10 in distillation device.
Distillation device 10 mainly passes through the effect of PVDF hollow-fibre membrane, draws agent by the temperature difference of film two sides to realize
Transfer of the moisture to condensed water direction in solution, water condensate storage is in condensation water tank 14, using preceding by entire condenser system
Water is filled, being subject in spill box 15 there are flowing out, and follows water ring pump 12 in opening condensation and starts the cycle over condensed water, logical first
Overcompression condensing unit 13, freezes herein by compressor, declines condensate temperature, then squeezes into distillation device
It at 10 front end film wire, then is flowed out by rear end film wire, is eventually returned in condensation water tank 14, in cycles, the dense of agent is drawn in realization
Contracting.
The present embodiment distillation device:
Distillation device is to the necessary supplement for drawing agent in positive infiltration operation, before individually in the present invention
Using discovery when positive infiltration progress concentration of juices, with the increase of running time, drawing contained humidity in agent just will be slow raising,
And after moisture increases, concentration will decline, and will reduce to the efficiency of concentration of juices, so will be drawn by distillation device
Material of the agent as membrane distillation heats in the high temperature by membrane distillation and condensed water realizes heat at PVDF hollow-fibre membrane
Exchange, the transfer of Lai Shixian moisture are final to realize that concentration of juices stable operation.
But in early period it was found that, the efficiency of distillation device is difficult to improve always, before always using
Pvdf membrane silk is installed, installation film wire is few, and the heat temperature raising needs of material individually carry out in another storage tank, will rise in pipeline
The material of good temperature is being transmitted in film wire, this section of process just has certain temperature losses, eventually leads to the whole of distillation device
Body is inefficient, in response to this, in the present invention, a novel distillation device has been specifically designed, on solving
State problem, as shown in figure 3, by the heating of material and with film wire contact exchange all completed in a water tank, reduce object
Expect the heat loss in pipeline transmission, and using the design feature of water tank, increases the membrane area of several times or more than before.
Novel distillation device surface structure is a water tank, is divided into inside and outside two layers, and internal layer fills substance to be evaporated and draws agent,
It is water that outer layer puts heat medium under normal circumstances, and internal layer water tank one shares 4 root canal roads and is connected in tank outer wall, wherein two root canal roads
As the intake-outlet of circulation, another two mountable liquid-level floaters are high to monitor liquid level in water tank by the variation up and down of floating ball
Degree., respectively there is a groove surface in the front and back two sides bottom of tank outer wall, is directly connected with internal layer water tank, grooves on two sides face is respectively provided with 6
4 points of internal thread holes are used for installing pvdf membrane silk, and film wire first passes through epoxide-resin glue and the mixed solution of curing agent glues cementation
It is scheduled on pvc pipe road, pvc pipe road both ends are being installed into 4 external threads, finally film wire is connected with distillation device.Outside
Layer water tank, which removes, is equipped with water, is also equipped with two electrical bars and a temperature electrode, outer layer water tank temperature is monitored by temperature electrode,
Heating function is realized by electrical bar, the real value of temperature can be shown in PID controller, and compared with setting value, will be inclined
Difference carry out PID arithmetic, be as a result converted to 0-10V DC voltage value send to it is silicon-controlled, silicon-controlled inside establish 0-10V with
The linear relationship of 0-220V can adjust output AC voltage value by input direct-current voltage value, control the output power of electrical bar,
It is final to realize thermostatic control.
The work of the positive infiltration concentration of juices circulatory system are as follows: fruit juice is pumped into just by fruit juice storage tank 1 by fruit juice circulating pump 3
The fruit juice area of permeable membrane element 6, fruit juice is recycled by flowing back to the completion concentration of juices of fruit juice storage tank 1 after positive osmosis concentration, in fruit juice
Moist part penetrate into and draw in agent；
Draw the work of the agent membrane distillation circulatory system are as follows: draw agent by drawing agent circulating pump 11 and be pumped into distillation device
10 high-temperature region, forward osmosis membrane component 6 is flowed back to after membrane distillation concentration draws agent area, and completion draws agent circulation, draws agent
In moist part penetrate into condensate liquid, the temperature of condensate liquid increases；Condensate liquid is pumped into condensation by condensate water circulatory pump 12
In water tank 14, the condensing zone for coming back to distillation device 10 after compression condensation device 13 cools down is entered back into, condensing agent is completed and follows
Ring.
Pressure sensor 2 is provided in fruit juice storage tank 1；Connect the pipeline of fruit juice storage tank 1 and 6 fruit juice area of forward osmosis membrane component
On be provided with online conductivity meter 4 and juice temperature electrode 5；Connection forward osmosis membrane component 6 draws agent area and distillation device 10
It is provided on the pipeline of high-temperature region and draws agent temperature electrode 7；In control cabinet setting muti-piece detect instrument show each temperature electrode,
Conductivity gauge, pressure sensor numerical value；Control cabinet can be manual mode of operation or automatic running pattern: in a manual mode, can
Realize that the starting of each equipment stops by button；In automatic mode, system is according to process flow automatic running, by each
Circulating pump realizes corresponding solution circulation, and opens heating and refrigerating plant.
Compression condensation device 13 realizes the thermostatic control of refrigeration by pid control circuit；The high-temperature region of distillation device 10
Monitoring temperature is realized by heating device and temperature electrode, and constant temperature method is carried out by silicon-controlled PID control.
Setting muti-piece detects instrument in control cabinet, is respectively as follows: and draws agent content gauge (corresponding liquid-level floater), fruit juice storage tank liquid
Position instrument (corresponding pressure sensor 2), the online conductivity meter of fruit juice reflux (corresponding online conductivity meter 4), fruit juice reflux temperature
Water cavity thermometric instrument (corresponding water temperature electrode 9), membrane distillation are drawn on the outside of degree instrument (corresponding juice temperature electrode 5), distillation device
Take agent reflux temperature instrument (correspondence draws agent temperature electrode 7)；Control cabinet can be manual mode of operation or automatic running pattern:
In a manual mode, it can realize that the starting of each equipment stops by button；In automatic mode, system according to process flow from
Dynamic operation realizes that corresponding solution recycles by each circulating pump, and opens heating and refrigerating plant.
Claims (7)
1. a kind of positive infiltration-membrane distillation couples concentration of juices device, it is characterised in that: including just permeating concentration of juices cyclic system
It unites, draw the agent membrane distillation circulatory system and control cabinet, the positive infiltration concentration of juices circulatory system is controlled by control cabinet and draw agent film
Distill circulatory system operation；The positive infiltration concentration of juices circulatory system passes through a forward osmosis membrane with the agent membrane distillation circulatory system is drawn
Component (6) connection；Forward osmosis membrane component (6) is internal to be divided into fruit juice area as boundary using forward osmosis membrane and draws agent area；
The liquid outlet in the fruit juice area passes through the inlet of one fruit juice storage tank (1) of piping connection, and the inlet in fruit juice area passes through
The liquid outlet of the liquid outlet of one fruit juice circulating pump (3) of piping connection, fruit juice storage tank (1) passes through piping connection fruit juice circulating pump
(3) inlet constitutes the positive infiltration concentration of juices circulatory system；
It is described draw agent area and a distillation device (10), one draw agent circulating pump (11), a compression condensation device
(13), a condensation water tank (14), a condensate water circulatory pump (12) are followed by drawing agent membrane distillation described in piping connection composition
Loop system；
The agent membrane distillation circulatory system of drawing includes drawing the agent circulatory system and condensate circulation system, distillation device (10)
It is inside provided with using dewatering microporous film as the high-temperature region on boundary and condensing zone；
The inlet of the high-temperature region passes through the liquid outlet for drawing agent area of piping connection forward osmosis membrane component (6), high-temperature region
Liquid outlet draws the inlet of agent circulating pump (11) by piping connection, and the liquid outlet for drawing agent circulating pump (11) is connected by pipeline
The inlet for drawing agent area of forward osmosis membrane component (6) is connect, draws the agent circulatory system described in composition；
The inlet of the condensing zone passes through the liquid outlet of piping connection compression condensation device (13), compression condensation device (13)
Inlet passes through the liquid outlet of piping connection condensation water tank (14), and the inlet of condensation water tank (14) passes through piping connection condensed water
The liquid outlet of circulating pump (12), condensate water circulatory pump liquid outlet of the inlet of (12) by condensing zone described in piping connection, group
At the condensate circulation system.
2. concentration of juices device according to claim 1, it is characterised in that: the distillation device (10) includes a water
Case and multiple dewatering microporous film pipe fittings (10-4), water tank are divided into the water cavity (10- for drawing agent storage chamber (10-1) and outer layer of internal layer
2) it, is not connected between inside and outside two layers of cavity, heating device (8) and water temperature electrode (9) is provided in the water cavity (10-2) in outside, it is interior
The agent storage chamber (10-1) that draws of layer is provided with and draws agent outlet and draw agent import and respectively by piping connection to water tank
Outside；The front and back two sides bottom of tank outer wall respectively have a groove surface (10-3) directly with draw agent storage chamber (10-1) and be connected, two
Multipair corresponding through-hole is provided on a groove surface (10-3) for installing dewatering microporous film pipe fitting (10-4), dewatering microporous film pipe fitting
The both ends of (10-4) are tightly connected with two side through hole respectively, are the condensing zone in dewatering microporous film pipe fitting (10-4), are passed through cold
Lime set, dewatering microporous film pipe fitting (10-4) is external to be drawn in agent storage chamber as high-temperature region, is passed through and is drawn agent, condensing zone and high temperature
Area is separated by dewatering microporous film；Dewatering microporous film is PVDF hollow-fibre membrane.
3. concentration of juices device according to claim 2, it is characterised in that: draw agent storage chamber (10-1) and be provided with 4
Outside piping connection to water tank, wherein inlet tube and outlet tube of the two root canal roads respectively as high-temperature region, in addition two are equipped with liquid
Position floating ball.
4. concentration of juices device according to claim 2, it is characterised in that: be provided with pressure in the fruit juice storage tank (1)
Sensor (2)；Online conductivity is provided on the connecting line in connection fruit juice storage tank (1) and forward osmosis membrane component (6) fruit juice area
Instrument (4) and juice temperature electrode (5)；The pipe in agent area Yu distillation device (10) high-temperature region is drawn in connection forward osmosis membrane component (6)
Road, which is provided with, draws agent temperature electrode (7)；Setting muti-piece detects instrument and shows each temperature electrode, conductance respectively in control cabinet
Instrument, pressure sensor numerical value.
5. concentration of juices device according to claim 1, it is characterised in that: the concentration of juices device is also equipped with high-low-position
Liquid level alarm is provided with low liquid level switch in fruit juice storage tank (1), distillation device (10), and condensation water tank (14) is provided with height
Liquid-level switch.
6. concentration of juices device according to claim 1, it is characterised in that: the condensation water tank (14) is connected with one and overflows
Flowing water case (15).
7. concentration of juices device according to claim 1, it is characterised in that: the forward osmosis membrane of forward osmosis membrane component (6) with
The installation of pipeline form, forward osmosis membrane pipeline is using groove type by all kinds of means.
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| CN201820939480.1U CN208711451U (en) | 2018-06-19 | 2018-06-19 | A kind of positive infiltration-membrane distillation coupling concentration of juices device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479406A (en) * | 2018-06-19 | 2018-09-04 | 北京电子科技职业学院 | A kind of positive infiltration-membrane distillation coupling concentration of juices device and method for concentration |
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2018
- 2018-06-19 CN CN201820939480.1U patent/CN208711451U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479406A (en) * | 2018-06-19 | 2018-09-04 | 北京电子科技职业学院 | A kind of positive infiltration-membrane distillation coupling concentration of juices device and method for concentration |
| CN108479406B (en) * | 2018-06-19 | 2023-05-26 | 北京电子科技职业学院 | Forward osmosis-membrane distillation coupled fruit juice concentrating device and concentrating method |
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