CN206454506U - A kind of forward osmosis membrane test device - Google Patents
A kind of forward osmosis membrane test device Download PDFInfo
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- CN206454506U CN206454506U CN201621365875.2U CN201621365875U CN206454506U CN 206454506 U CN206454506 U CN 206454506U CN 201621365875 U CN201621365875 U CN 201621365875U CN 206454506 U CN206454506 U CN 206454506U
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Abstract
The utility model discloses a kind of forward osmosis membrane test device, liquid fluid reservoir and raw material liquid storage tank are drawn including docking, interface is provided with forward osmosis membrane and sealing ring, it is described to draw liquid fluid reservoir and raw material liquid storage tank is respectively used to accommodating draw liquid and material liquid, the discharging opening for drawing liquid fluid reservoir is connected by drawing liquid discharge nozzle A with drawing flow container, the first outlet for drawing flow container is connected by pipeline with drawing liquid storage tank, the outlet for drawing liquid storage tank is connected by drawing liquid feed pipe with drawing liquid fluid reservoir, the raw material liquid storage tank is connected by material liquid discharge nozzle with raw material flow container, the outlet of raw material flow container is connected by pipeline with material liquid storage tank entrance, the outlet of material liquid storage tank connects the entrance of raw material liquid storage tank by material liquid feed pipe, improve the sealing of test device, it can realize and draw recycling for liquid and material liquid, reduce testing cost, if production cost can be substantially reduced applied to industrial production, and it is easy to operate.
Description
Technical field
The utility model belongs to film properties test field, and in particular to a kind of forward osmosis membrane test device.
Background technology
Positive infiltration (Forward osmosis, FO) be in the presence of without impressed pressure, film both sides material liquid and
Drive in the presence of the permeable pressure head that liquid is produced, the hydrone permeated in the material liquid forced down is entered by the forward osmosis membrane of selectivity
Enter in the high driving liquid side of osmotic pressure so that the material liquid of certain side is concentrated the process that the driving liquid of opposite side is diluted
(as shown in Figure 1), this selective pellicle exactly forward osmosis membrane, it is only capable of passing through other solutes in water, solution
Molecule or solute ions can not be retained through forward osmosis membrane by forward osmosis membrane.
The main performance index of forward osmosis membrane is water flux and salt-stopping rate, and the existing forward osmosis membrane performance testing device in room is surveyed
Amount is accurate, and infiltration Process flowchart significantly, can connect computer by data collecting system, the change of liquid quality is drawn in on-line monitoring
The change of electrical conductivity in change, material liquid, and in real time by Flow-rate adjustment valve regulation flow, but can not enter to drawing liquid and material liquid
Row is recycled, and result in the waste of raw material and the increase of testing cost.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of forward osmosis membrane test device, is just being oozed for testing
The water flux and salt-stopping rate of permeable membrane, the utility model are reasonable in design, can realize and draw recycling for liquid and material liquid, reduce
Testing cost, if it can substantially reduce production cost applied to industrial production, and it is easy to operate.
Above-mentioned purpose is reached, the utility model provides forward osmosis membrane performance testing device, including the liquid that draws of docking is stored up
Flow container and raw material liquid storage tank, interface are provided with forward osmosis membrane and sealing ring, it is described draw liquid fluid reservoir be used for it is accommodating draw liquid,
The raw material liquid storage tank is used to house material liquid, and the liquid fluid reservoir that draws is provided with discharging opening, and the discharging opening is by drawing
Liquid discharge nozzle A is connected with drawing flow container, and the first outlet for drawing flow container is connected by pipeline with drawing liquid storage tank, described to draw
The outlet of liquid storage tank is taken to be connected by drawing liquid feed pipe with drawing liquid fluid reservoir.
The raw material liquid storage tank is connected by material liquid discharge nozzle with raw material flow container, the material liquid outlet and raw material
Material liquid outlet pump is provided between flow container, the outlet of raw material flow container is connected by pipeline with material liquid storage tank entrance, material liquid storage
The outlet of case connects the entrance of raw material liquid storage tank by material liquid feed pipe.
It is described draw flow container and be additionally provided with to be disposed with second outlet, the second outlet for drawing flow container draw liquid
Regulating valve A, draw liquid pump, vaporising device and separation component storage tank, the separation component storage tank include separation component storage tank A and
Separation component storage tank B, is connected, the separation group by the outlet of index combustion fan A and index combustion fan B and vaporising device respectively
Storage tank is divided to be connected with drawing the entrance of liquid storage tank by pipeline, the outlet of the separation component storage tank is provided with regulating valve.
The first outlet for drawing flow container and draw to be provided between the entrance of liquid storage tank 27 and draw liquid regulating valve B, draw
Liquid import pump, it is described draw liquid storage tank outlet and drawing be provided between liquid fluid reservoir entrance draw liquid storage tank outlet regulating pump,
Draw liquid storage tank index combustion fan and draw liquid fluid reservoir inlet pressure gauge, outlet and the raw material liquid storage tank of the material liquid storage tank
Material liquid import pump, material liquid inlet pressure gauge and material liquid inlet adjusting valve are provided between entrance, the raw material flow container goes out
Raw material flow container outlet pump and raw material flow container outlet valve are provided between mouth and material liquid storage tank entrance.
The forward osmosis membrane is circle.
Also including for the agitator being stirred to the material liquid in raw material liquid storage tank and for drawing liquid fluid reservoir
In draw the mixer that liquid is stirred, the stirring rod of the electric blender, which is stretched into, to be drawn in liquid.
Also include the electrical conductivity controller, the probe of the electrical conductivity controller is stretched into the liquid in raw material flow container,
The connection of the electrical conductivity controller and computer, the change of the material liquid electrical conductivity in test process is dynamically monitored using computer,
The flow container lower end of drawing is provided with electronic balance, and the electronic balance is connected with computer, is monitored for dynamic in test process
In draw the dynamic change of liquid weight.
It is described to draw liquid fluid reservoir, raw material liquid storage tank, draw flow container and raw material flow container and be made of transparent material, and set
It is equipped with scale.
It is described draw liquid fluid reservoir top and offer draw liquid discharging liquid pipe, the liquid discharging liquid pipe exit of drawing is set
There is the beaker for holding the liquid flowed out from liquid discharging liquid pipe is drawn, described draw sets below liquid storage tank and material liquid storage tank
It is equipped with the water-bath for reducing interior concentration polarization.
The interface for drawing liquid fluid reservoir and raw material liquid storage tank is provided with material liquid sealing ring and draws liquid-tight seal,
Draw liquid fluid reservoir and material liquid fluid reservoir is fixed by bolt type flange.
Compared with prior art, the utility model at least has following beneficial technique effect, and the utility model is just oozing
The both sides of permeable membrane, which are respectively arranged with, draws liquid fluid reservoir and draws liquid fluid reservoir and raw material liquid storage tank, makes the hydrone in material liquid
In a free state by forward osmosis membrane, and interface is provided with sealing ring, improves the sealing of the present apparatus, setting
Draw liquid and material liquid cyclic utilization system, by after draw liquid and material liquid is recycled, reduce testing cost,
Liquid fluid reservoir is drawn simultaneously and flow container UNICOM is drawn, and can obtain drawing liquid liquid storage according to the change for the liquid level and quality for drawing flow container
The change of the liquid level and quality of tank, can obtain the change of the water flux of forward osmosis membrane, be easy to the acquisition of test data.
The raw material liquid storage tank utility model is connected by material liquid discharge nozzle utility model with raw material flow container utility model,
Material liquid outlet pump utility model is provided between the raw material liquid storage tank utility model outlet and raw material flow container utility model, it is former
The outlet of material liquid tank utility model is connected by pipeline with material liquid storage tank utility model entrance, and material liquid storage tank utility model goes out
Mouth connects the entrance of raw material liquid storage tank utility model by material liquid feed pipe utility model.
Further, draw flow container and also set up second outlet, draw to be disposed with the second outlet of flow container and draw liquid
Regulating valve A, draw liquid pump, vaporising device and separation component storage tank, separation component storage tank includes separation component storage tank A and separation group
Divide storage tank B, connected respectively by the outlet of index combustion fan A and index combustion fan B and vaporising device, separation component storage tank is with drawing
Take the entrance of liquid storage tank to be connected by pipeline, the outlet of separation component storage tank is provided with regulating valve, liquid drawn for labile,
The liquid that draws drawn in liquid fluid reservoir and is being drawn under the collective effect of liquid pump regulating valve, into vaporising device, because boiling point is not
Together, low boiling component A comes out at first, opens index combustion fan B, closes index combustion fan A, can collect lower boiling component A
In separation component A casees；Come out after higher boiling B, open index combustion fan A, close index combustion fan B, can will be lower boiling
Component B is collected in separation component B casees, is delivered in proportion by regulating valve and is drawn liquid storage tank；For drawing for being not easily decomposed
Liquid (magnesium chloride Mg Cl2 solution, sodium sulphate Na2SO4 solution), draws in liquid fluid reservoir and draws liquid in index combustion fan and outlet
It is delivered under regulation pumping action and draws liquid storage tank.Further, draw the first outlet of flow container and draw between liquid storage tank entrance
It is provided with and draws liquid regulating valve B, draws liquid import pump, draws the outlet of liquid storage tank and draw to be provided between liquid fluid reservoir entrance and draw
Liquid storage tank outlet regulating pump is taken, liquid storage tank index combustion fan is drawn and draws liquid fluid reservoir inlet pressure gauge, material liquid storage tank
Material liquid import pump, material liquid inlet pressure gauge and material liquid inlet adjusting are provided between outlet and material liquid reservoir inlet
Valve, raw material flow container outlet pump and raw material flow container outlet valve are provided between the outlet of raw material flow container and material liquid storage tank entrance, can root
According to needing to open corresponding pump and valve, to control the flow direction of each liquid in containers.
Further, forward osmosis membrane is circle, it is to avoid waste of material, has saved testing cost.
Further, in addition to for the agitator being stirred to the material liquid in raw material liquid storage tank and for drawing
The mixer that liquid is stirred is drawn in liquid fluid reservoir, the stirring rod of electric blender, which is stretched into, to be drawn in liquid, agitator and electricity
Dynamic mixer stirs material liquid and draws liquid simultaneously, improves the internal flow state of forward osmosis membrane both sides, when improving rate of flow of fluid, border
Layer can be thinning therewith, mass transfer velocity increase, so as to reduce outer concentration polarization.
Further, in addition to electrical conductivity controller, the probe of electrical conductivity controller is stretched into the liquid in raw material flow container,
The connection of electrical conductivity controller and computer, the change of the material liquid electrical conductivity in test process is dynamically monitored using computer, is drawn
Flow container lower end is provided with electronic balance, and electronic balance is connected with computer, is monitored for dynamic and liquid weight is drawn in test process
Dynamic change, by determining the electrical conductivity in raw material flow container, obtain the electrical conductivity of material liquid, dynamically monitoring is being surveyed using computer
The change of material liquid electrical conductivity during examination, as infiltration is carried out, accurately obtains the electrical conductivity of material liquid and draws liquid weight in real time
The dynamic change of amount, obtains more test datas.
Further, liquid fluid reservoir, raw material liquid storage tank are drawn, flow container and raw material flow container is drawn using transparent material system
Into, and scale is provided with, it is easy to Real Time Observation and reads data.
Further, draw liquid fluid reservoir top and offer and draw liquid discharging liquid pipe, draw liquid discharging liquid pipe exit and set
It is equipped with for holding the beaker of liquid flowed out from liquid discharging liquid pipe is drawn, with the progress of experiment, the moisture in material liquid
It is sub constantly enter draws liquid fluid reservoir, when drawing the liquid in liquid fluid reservoir more than certain value, its pressure to forward osmosis membrane
Forward osmosis membrane can be damaged, therefore liquid discharging liquid pipe is drawn drawing liquid fluid reservoir top and opening up, when drawing in liquid fluid reservoir
When the liquid level for drawing liquid is higher than the position for drawing liquid discharging liquid pipe, drawing liquid will flow out from liquid discharging liquid pipe is drawn, to avoid
Draw liquid forward osmosis membrane is caused to damage, it is ensured that being smoothed out for experiment, draw and be provided with below liquid storage tank and material liquid storage tank
Water-bath for reducing interior concentration polarization, with the rise of temperature, the viscosity of solution is reduced, diffusion coefficient increase, mass transfer effect
Fruit becomes more preferable also with the rise of temperature, and water flux becomes big, but water flux rise can aggravate interior concentration difference afterwards to a certain extent
Polarization, so suitable temperature is selected in test, and water-bath can realize the regulation for drawing solution temperature in liquid storage tank.
Further, the interface for drawing liquid fluid reservoir and raw material liquid storage tank is provided with material liquid sealing ring and draws liquid-tight
Seal, draws liquid fluid reservoir and material liquid fluid reservoir is fixed by bolt type flange, improves the steady of sealing and device
It is qualitative, and it is readily disassembled cleaning.
Further, draw liquid and draw liquid for recycling type, such as NH3/CO2 draws liquid, MgCl2 solution or Na2SO4
Solution, recycles and draws liquid, can save the cost of test.
Brief description of the drawings
Fig. 1 is laboratory forward osmosis membrane film separating structure schematic diagram；
Fig. 2 is the utility model laboratory forward osmosis membrane test device schematic diagram；
Fig. 3 is the utility model laboratory forward osmosis membrane film component device front view；
Fig. 4 is the utility model laboratory forward osmosis membrane film component device left view；
Fig. 5 is the utility model laboratory forward osmosis membrane film component device top view.
In accompanying drawing：1st, liquid fluid reservoir is drawn, 2, material liquid fluid reservoir, 3, forward osmosis membrane, 4, draw liquid-tight seal, 5, raw material
Liquid-tight seal, 6, bolt type flange, 7, electric blender, 8, electrical conductivity controller, 9, magneton, 10, magnetic stirring apparatus, 11, draw
Take liquid discharge nozzle A, 12, draw liquid outlet pump, 13, draw liquid index combustion fan, 14, draw liquid feed pipe, 15, material liquid outlet
Pump, 16, draw flow container, 17, draw liquid regulating valve A, 18, draw liquid regulating valve B, 19, draw liquid pump, 20, draw liquid import
Pump, 21, vaporising device, 22, index combustion fan A, 23, index combustion fan B, 24, separation component A storage tanks, 25, separation component B storages
Case, 26, regulating valve, 27, draw liquid storage tank, 28, draw liquid storage tank outlet regulating pump, 29, draw liquid storage tank index combustion fan,
30th, liquid fluid reservoir inlet pressure gauge is drawn, 31. material liquid feed pipes, 32, with graduated raw material flow container, 33, material liquid import
Regulating valve, 34, material liquid storage tank delivery gauge, 35, material liquid storage tank outlet pump, 36, draw liquid discharging liquid pipe B, 37, burn
Cup, 38, electronic balance, 39, water-bath, 40, material liquid storage tank, 41, raw material flow container outlet pump, 42, raw material flow container outlet valve.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Liquid fluid reservoir 1 and raw material liquid storage tank 2 are drawn in reference picture 2, a kind of forward osmosis membrane test device, including docking, are drawn
Take the interface of liquid fluid reservoir 1 and raw material liquid storage tank 2 to be provided with material liquid sealing ring 4 and draw liquid-tight seal 5, draw liquid liquid storage
Tank 1 and material liquid fluid reservoir 2 are fixed by bolt type flange 6, improve sealing and the stability of device, and be easy to
Disassembly, cleaning, draw liquid fluid reservoir 1 be used for it is accommodating draw liquid, raw material liquid storage tank 2 is described to draw liquid liquid storage for housing material liquid
Tank 1 is provided with discharging opening, and the discharging opening is connected by drawing liquid discharge nozzle A11 with drawing flow container 16, can be according to drawing flow container
Liquid level and quality change obtain drawing liquid fluid reservoir liquid level and quality change, the water flux of forward osmosis membrane can be obtained
Change, is easy to the acquisition of test data, the flow container 16 that draws is provided with two outlets, and the first outlet for drawing flow container 16 passes through
Pipeline is connected with drawing liquid storage tank 27, is disposed with the second outlet for drawing flow container 16 and is drawn liquid regulating valve A17, draws liquid
Pump 19, vaporising device 21 and separation component storage tank, the separation component storage tank includes separation component storage tank A24 and separation component is stored up
Case B25, is connected, the separation component by index combustion fan A22 and index combustion fan B23 with the outlet of vaporising device 21 respectively
Storage tank is connected with drawing the entrance of liquid storage tank 27 by pipeline, and the outlet of the separation component storage tank is provided with regulating valve 26, for
It is labile to draw liquid NH3/CO2, draw in liquid fluid reservoir 1 and draw liquid in regulating valve 17 and the collective effect for drawing liquid pump 19
Under, into vaporising device, because boiling point is different, low boiling component CO2 is evaporated at first, opens index combustion fan B23, closes
Index combustion fan A22, can collect lower boiling CO2 in separation component A casees；Come out, open out after high boiling component NH3
Mouth regulating valve A22, closes index combustion fan B23, lower boiling component NH3 can be collected in separation component B casees, passes through regulation
Valve is delivered in proportion draws liquid storage tank；If CO2 is excessive, it is exactly NH4HCO3 to draw the liquid that draws generated in liquid storage tank, is changed
Learning reaction equation is：CO2+NH3+H2O=NH4HCO3；If NH3 is excessive, it is exactly (NH4) to draw the liquid that draws generated in liquid storage tank
2CO3, chemical equation is：CO2+2NH3+H2O=(NH4) 2CO3.For the liquid that draws that is not easily decomposed, (magnesium chloride Mg Cl2 is molten
Liquid, sodium sulphate Na2SO4 solution), draw in liquid fluid reservoir and draw liquid in index combustion fan 18 and the work of outlet regulating pump 20
It is fed directly to draw liquid storage tank under, the present apparatus is provided with two and draws liquid recovery channel, difference can be met and draw liquid time
The demand of receipts, the valve of another road recovery channel need to only be turned off by changing when drawing liquid, easy to operate, it is to avoid secondary to set back
The trouble in closed tube road.
The outlet for drawing liquid storage tank 27 is connected by drawing liquid feed pipe 14 with drawing liquid fluid reservoir 1, described to draw
Liquid storage tank 27 is exported and drawn to be provided between liquid fluid reservoir entrance 1 and draws liquid storage tank outlet regulating pump 28, draws liquid storage tank and go out
Mouthful regulating valve 29 and liquid fluid reservoir inlet pressure gauge 30 is drawn, by drawing the start and stop of liquid inlet adjusting pump 28 and drawing liquid
The regulation of mouthful regulating valve 29, by drawing liquid feed pipe 14 by after recovery and the liquid that draws that is diluted is delivered to and draws liquid and store up
Flow container 1, realizes and draws chlorination processes magnesium MgCl2 solution, sodium sulphate Na2SO4 or NH3/CO2 and recycle.
The raw material liquid storage tank 2 is connected by material liquid discharge nozzle 43 with raw material flow container 32, the outlet of raw material liquid storage tank 2 and original
Material liquid outlet pump 15 is provided between material liquid tank 32, the outlet of raw material flow container 32 is connected by the entrance of pipeline and material liquid storage tank 40
Connect, the exit of raw material flow container 32 is provided with raw material flow container outlet pump 41 and raw material flow container outlet valve 42, material liquid storage tank 40 goes out
Mouth connects the entrance of raw material liquid storage tank 2, outlet and the raw material liquid storage tank 2 of the material liquid storage tank 40 by material liquid feed pipe 31
Material liquid import pump 35, material liquid inlet pressure gauge 34 and material liquid inlet adjusting valve 33 are provided between entrance, it is ensured that to material
Material liquid carries out continual supply in liquid storage tank 2.
Also including for the agitator 10 being stirred to the material liquid in raw material liquid storage tank 2 and for drawing liquid liquid storage
The mixer 7 that liquid is stirred is drawn in tank 1, the stirring rod of the electric blender 7, which is stretched into, to be drawn in liquid, the material liquid
Magneton 9 is provided with storage tank 2, using magnetic field and the principle of whirlpool, after producing magnetic field when being powered, magneton 9 is driven into circumferential cycle
Motion is so as to stir material liquid, and the electric blender 7 includes drive device and drive link, and drive link end is provided with spiral and stirred
Head is mixed, stirring-head, which is stretched into, to be drawn in liquid, energization rear drive equipment drives drive rod rotation, drive link drives stirring-head to rotate, stirred
The rotation for mixing head drives the motion of the material liquid around it, so as to realize the stirring to material liquid, agitator and electric blender
Material liquid is stirred simultaneously and liquid is drawn, and improves the internal flow state of forward osmosis membrane both sides, when improving rate of flow of fluid, boundary layer can be therewith
It is thinning, mass transfer velocity increase, so as to reduce outer concentration polarization.
Also include the electrical conductivity controller 8, the liquid that the probe of the electrical conductivity controller 8 is stretched into raw material flow container 32
In, the connection of the electrical conductivity controller 8 and computer dynamically monitors the change of the material liquid electrical conductivity in test process using computer
Change, the lower end of flow container 16 of drawing is provided with electronic balance 38, and the electronic balance 38 is connected with computer, monitored for dynamic
The dynamic change of liquid weight is drawn in test process, by determining the electrical conductivity in raw material flow container, the electrical conductivity of material liquid is obtained,
The change of the material liquid electrical conductivity in test process is dynamically monitored using computer, as infiltration is carried out, real-time accurate acquisition raw material
The electrical conductivity of liquid and the dynamic change for drawing liquid weight, obtain more test datas.
It is described draw liquid fluid reservoir 1 and offer draw liquid discharging liquid pipe 36, liquid discharging liquid pipe 36 exit of drawing is set
It is equipped with for holding from drawing the beaker 37 of liquid flowed out in liquid discharging liquid pipe 36, with the progress of experiment, in material liquid
Hydrone, which constantly enters, draws liquid fluid reservoir, and when drawing the liquid in liquid fluid reservoir more than certain value, it is to forward osmosis membrane
Pressure can damage forward osmosis membrane, therefore draw liquid discharging liquid pipe drawing liquid fluid reservoir top and opening up, when drawing liquid fluid reservoir
In the liquid level for drawing liquid be higher than draw liquid discharge liquid pipe position when, draw liquid will from draw liquid discharging liquid pipe in flow out, with
Avoid drawing liquid forward osmosis membrane is caused to damage, it is ensured that being smoothed out for experiment, it is described to draw liquid storage tank 27 and material liquid storage tank
40 lower sections are provided with the water-bath 39 for reducing interior concentration polarization, with the rise of temperature, and the viscosity of solution is reduced, diffusion system
Number increase, mass transfer effect becomes more preferable also with the rise of temperature, and water flux becomes big, but after water flux rise to a certain extent
Interior concentration polarization can be aggravated, so suitable temperature is selected in test, and water-bath can be realized and draw molten in liquid storage tank
The regulation of liquid temperature degree.
It is preferred that, draw the discharging opening of liquid fluid reservoir 1 and draw to be provided between flow container 16 and draw liquid outlet pump 12 and draw
Liquid index combustion fan 13, to control the flowing for drawing liquid in liquid fluid reservoir 1；Draw the first outlet of flow container 16 and draw liquid storage
It is provided between the entrance of case 27 and draws liquid regulating valve B18, draws liquid import pump 20, corresponding pump and valve can be opened as needed
Door, makes to draw liquid inflow in flow container 16 and draws in liquid storage tank 27.
It is preferred that, forward osmosis membrane 3 is circle, it is to avoid waste of material, has saved testing cost, because drawing flow container and original
The section of material liquid tank is all circular, if selection is square or rectangular forward osmosis membrane, will necessarily some film be placed in
Draw outside flow container and raw material flow container, cause the waste of forward osmosis membrane.
It is preferred that, draw liquid fluid reservoir 1 and be placed in the top of raw material liquid storage tank 2, can make in the case where drawing liquid consumption less
Waste residue in material liquid etc. is retained down by the water in material liquid by forward osmosis membrane, is easy to useless to what is retained in raw material flow container
Slag is excluded, and if will draw liquid fluid reservoir 1 is placed in the lower section of raw material liquid storage tank 2, is drawn liquid and must be filled and draws liquid liquid storage
Tank, material liquid (waste water) just has to consider film ability to bear above, it is impossible to fill it up with.
It is preferred that, draw liquid fluid reservoir 1, raw material liquid storage tank 2, draw flow container 16 and raw material flow container 32 using transparent material
It is made, and is provided with scale, is easy to Real Time Observation and reads data.
It is preferred that, draw liquid and draw liquid for recycling type, it is molten that such as NH3/CO2 draws liquid, MgCl2 solution or Na2SO4
Liquid, recycles and draws liquid, can save the cost of test.
Reference picture 3 is to Fig. 5, it is preferred that the diameter of forward osmosis membrane：Φ=16cm；The area of forward osmosis membrane：S=π r2≈
200.96cm2；Forward osmosis membrane component：B × c=25cm × 25cm；Bolt sizes：L=4cm, a=1.5cm.
The step of testing the water flux and salt-stopping rate of forward osmosis membrane using this forward osmosis membrane performance testing device is as follows：
1) forward osmosis membrane performance testing device is assembled；
2) open and draw liquid storage tank outlet regulating pump 28, liquid storage tank index combustion fan 29 is drawn in adjustment, to drawing liquid liquid storage
The injection of tank 1 is drawn liquid and located to the 2/5-3/5 for drawing liquid fluid reservoir 1, closes and draws liquid storage tank outlet regulating pump 28, stops to drawing
Take the injection of liquid；Material liquid import pump 35 is opened, adjustment material liquid inlet pressure gauge 34 injects raw material to material liquid fluid reservoir 2
Liquid, until material liquid fills material liquid fluid reservoir 2；
3) observe and record and draw the liquid liquid level amount of changing with time, and draw the change of the water flux of material liquid accordingly；
The calculation formula of forward osmosis membrane water flux：Jw=Δ m/ ρ st；
Wherein：Jw --- positive osmotic water flux, L/m2h；
Δ m --- draw the value added of liquid quality, kg；
The density of ρ --- water, kg/m3；
Effective membrane area of s --- forward osmosis membrane, m2；
The time of t --- test, h；
4) agitator 10 and electric blender 8 are opened, while stirring the material liquid in material liquid fluid reservoir 1 and drawing liquid storage
Liquid is drawn inside flow container 2；
5) the liquid level change for drawing flow container rising is observed and recorded, the electricity for drawing liquid being diluted is measured with conductivity meter 7
The change of conductance；
6) by the change of water flux and reverse flux salt, calculating obtains salt-stopping rate, and calculation formula is as follows：
The calculation formula of forward osmosis membrane salt-stopping rate：R=1-Cp/Cf；
Wherein：Cp --- the salinity in permeate；
Cf --- the salinity in initial feed liquid；
C=K/ Λ m；
Wherein：The concentration mol/l of C --- solution；
K --- electrical conductivity controller measures the electrical conductivity of material liquid；
Molar conductivity (the s.cm of Λ m --- solution2)/g；
Λ m=λ M；
Equivalent conductivity (the s.cm of λ --- electrolyte2)/g；
The molal weight g/mol of M --- electrolyte.
Claims (10)
1. a kind of forward osmosis membrane test device, it is characterised in that draw liquid fluid reservoir (1) and raw material liquid storage tank including docking
(2), interface is provided with forward osmosis membrane (3) and sealing ring, and the liquid fluid reservoir (1) that draws is used to accommodating draw liquid, the original
Feed liquid storage tank (2) is used to house material liquid, and the liquid fluid reservoir (1) that draws is provided with discharging opening, and the discharging opening is by drawing
Liquid discharge nozzle A (11) is connected with drawing flow container (16), and the first outlet for drawing flow container (16) is by pipeline and draws liquid storage
Case (27) is connected, and the outlet for drawing liquid storage tank (27) is connected by drawing liquid feed pipe (14) with drawing liquid storage tank (1).
2. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that the raw material liquid storage tank (2) is led to
Cross material liquid discharge nozzle (43) to connect with raw material flow container (32), between raw material liquid storage tank (2) outlet and raw material flow container (32)
Material liquid outlet pump (15) is provided with, raw material flow container (32) outlet is connected by pipeline with material liquid storage tank (40) entrance, raw material
The outlet of liquid storage tank (40) connects the entrance of raw material liquid storage tank (2) by material liquid feed pipe (31).
3. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that the flow container (16) that draws also is set
It is equipped with to be disposed with second outlet, the second outlet for drawing flow container (16) and draws liquid regulating valve A (17), draws liquid pump
(19), vaporising device (21) and separation component storage tank, the separation component storage tank include separation component storage tank A (24) and separation group
Divide storage tank B (25), be connected respectively by index combustion fan A (22) and index combustion fan B (23) with the outlet of vaporising device (21),
The separation component storage tank is connected with drawing the entrance of liquid storage tank (27) by pipeline, and the outlet of the separation component storage tank is set
There is regulating valve (26).
4. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that described to draw the of flow container (16)
One outlet and draw to be provided between liquid storage tank (27) entrance and draw liquid regulating valve B (18), draw liquid import pump (20), it is described to draw
Liquid storage tank (27) is taken to export and draw to be provided between liquid storage tank (1) entrance and draw liquid storage tank outlet regulating pump (28), draw liquid
Storage tank index combustion fan (29) and liquid storage tank inlet pressure gauge (30) is drawn, the outlet of the material liquid storage tank (40) and material liquid
Material liquid import pump (35), material liquid inlet pressure gauge (34) and material liquid inlet adjusting valve are provided between storage tank (2) entrance
(33) raw material flow container outlet pump (41) and original, are provided between raw material flow container (32) outlet and material liquid storage tank (40) entrance
Material liquid tank outlet valve (42).
5. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that the forward osmosis membrane (3) is circle
Shape.
6. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that also including for being stored up to material liquid
Agitator (10) that material liquid in tank (2) is stirred and for being stirred to drawing the liquid that draws in liquid fluid reservoir (1)
Electric blender (7), the stirring rod of the electric blender (7), which is stretched into, to be drawn in liquid.
7. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that also including electrical conductivity controller
(8), the probe of the electrical conductivity controller (8) is stretched into the liquid in raw material flow container (32), the electrical conductivity controller (8) with
The connection of computer, the change of the material liquid electrical conductivity in test process is dynamically monitored using computer, described to draw under flow container (16)
End is provided with electronic balance (38), and the electronic balance (38) is connected with computer, monitors and is drawn in test process for dynamic
The dynamic change of liquid weight.
8. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that it is described draw liquid fluid reservoir (1),
Raw material liquid storage tank (2), draw flow container (16) and raw material flow container (32) and be made of transparent material, and be provided with scale.
9. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that described to draw liquid fluid reservoir (1)
Top, which is offered, draws liquid discharging liquid pipe (36), and described liquid discharging liquid pipe (36) exit of drawing is provided with for holding from drawing
The beaker (37) of the liquid of outflow in liquid discharging liquid pipe (36), described draw sets below liquid storage tank (27) and material liquid storage tank (40)
It is equipped with the water-bath (39) for reducing interior concentration polarization.
10. a kind of forward osmosis membrane test device according to claim 1, it is characterised in that it is described draw liquid storage tank (1) and
The interface of raw material liquid storage tank (2) is provided with material liquid sealing ring (4) and draws liquid-tight seal (5), draws liquid storage tank (1) and original
Feed liquid storage tank (2) is fixed by bolt type flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365875.2U CN206454506U (en) | 2016-12-13 | 2016-12-13 | A kind of forward osmosis membrane test device |
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| CN109876663A (en) * | 2019-03-08 | 2019-06-14 | 天津工业大学 | A kind of algae solution dehydration device and method based on the positive infiltration technology of dead end |
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| CN109876663A (en) * | 2019-03-08 | 2019-06-14 | 天津工业大学 | A kind of algae solution dehydration device and method based on the positive infiltration technology of dead end |
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