CN204933269U - Two latent membrane component - Google Patents
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- CN204933269U CN204933269U CN201520543265.6U CN201520543265U CN204933269U CN 204933269 U CN204933269 U CN 204933269U CN 201520543265 U CN201520543265 U CN 201520543265U CN 204933269 U CN204933269 U CN 204933269U
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Abstract
The utility model relates to a kind of two latent membrane component, comprises putamina, metal tube, hydrophobic membrane silk; Wherein said putamina is provided with indirect steam outlet, material liquid outlet, condensate outlet, heating steam inlet, feed liquid port; Metal tube is positioned at putamina and the axis being parallel of its axis and putamina; Hydrophobic membrane silk to fill in metal tube and its axis and metal tube axis being parallel; Heating steam inlet, condensate outlet, the confined space composition heating steam path formed between putamina and metal tube; Feed liquid port, material liquid outlet, the confined space formed between metal tube and hydrophobic membrane silk form and process feed liquid path; Indirect steam outlet, hydrophobic membrane silk inner space composition indirect steam path.The utility model membrane module membrane area is large, and sealing is tight, low cost of manufacture.
Description
Technical field
The utility model relates to the membrane component of water treatment field, particularly relates to a kind of two latent membrane component.
Background technology
The physical method such as membrane separation process, the way of distillation can effective desalination, but membrane separation process film cost intensive, high to pre-processing requirements, and there is the serious wasting of resources and the problem of secondary pollution; Utilize the way of distillation can reclaim inorganic salts in high salt sewage, but equipment investment is huge, operating cost is higher.Membrane Materials (MembraneDistillation, MD) is a kind of membrane separating process adopting dewatering microporous film to be mass transfer driving force with film both sides steam pressure difference, is a kind of liquid separation technology that Conventional espresso technique combines with membrane separation technique.In Membrane Materials process, dewatering microporous film does not participate in centrifugation directly, and its unique effect is exactly as two alternate barriers, is selectively determined by vapour-liquid equilibrium completely.The mass transport process of Membrane Materials generally comprises following three steps: vapour-liquid interface place, hot-fluid side evaporates; Steam molecule is transmitted by hydrophobic membrane micropore; Steam is low temperature side condensation (or being pulled away).Separation process with other is compared, and Membrane Materials has that rejection is high, operating temperature is lower than traditional distillation, operating pressure is low, can process the advantages such as high-concentration waste water; But the energy consumption of Membrane Materials height is still the principal element hindering its development, be designed with a lot for multiple-effect, efficiently membrane distillation technique method and system at present, identical point all recycles the indirect steam that Membrane Materials produces, the heat that condensation discharges is used for heating raw liquid, and the temperature drop of the material liquid self of recycling heat carries out the evaporation of Membrane Materials.This utilizes the process of steam-condensation heating raw liquid may be carry out in film group device inside, also may carry out in film group device outside.
Application number be 200810053905.x heat reclamation type pressure reducing film distillation assembly apparatus and method application discloses by many groups be spaced, the frame membrane component unit of mutually connecting and frame heat exchanger assembly form.The steam that hot feed liquid evaporates in membrane component unit condensation on heat exchanger assembly, and reach the object of raising the efficiency.
Application number is that 200910170615.8 heat recuperating membrane distillation apparatus and application discloses in assembly of system fill breathable Membrane Materials hydrophobic membrane and air-locked heat exchange membranes, during operation, hydrophobic membrane runs hot feed liquid, heat exchange membranes runs cold burden liquid, the steam of hot feed liquid Membrane Materials can condensation in the real wall heat exchange membranes of cold burden liquid, and reaches the object of raising the efficiency.Real wall heat exchange membranes, the fine and close hollow fibre filament of atresia of Polymer materialspreparation.Water and steam all cannot pass through, and can carry out heat exchange but heat transfer loss is large, and rate of heat transfer is slow, and heat-transfer effect is poor.
Application number is that 201210072721.4 multiple-effect distillation devices and application discloses of method the invention provides a kind of multiple-effect distillation device and method.Distilling apparatus comprises main evaporation zone, multiple-effect evaporation district; Wherein: main evaporation zone arranges circulating slot and main evaporation zone membrane component, circulating slot outlet connects main evaporation zone membrane component tube-side inlet, and the tube side outlet of main evaporation zone membrane component connects circulating slot entrance; Arrange at least one-level heat exchange distilling apparatus in multiple-effect evaporation district, every one-level heat exchange distilling apparatus comprises membrane component and heat exchanger, and above-mentioned every one-level membrane component and heat exchanger in turn tube side are connected, and between membrane component at different levels, shell side is in parallel.The present invention proposes multiple-effect membrane distillation method, the water vapour condensation in Membrane Materials process is coupled with former water heating process, the heat of transformation of steam in reclamation film still-process.
Frame assembly cannot be accomplished to evaporate and the combination of condensation, and relevant with vacuum and lower than evaporated liquor, the efficiency of the system process disclosed in patent application 200810053905.x is also extremely low according to the temperature of evaporating principle steam.
Pillar hydrophobic membrane and heat exchange membranes mixed packing, the method for operation disclosed in patent application 200910170615.8 does not accomplish to evaporate the combination with condensation yet.If heat exchange Si Neitong steam, cavity leads to hot feed liquid, the inner steam pumping of hydrophobic membrane, what can accomplish to evaporate with the combination of condensation reluctantly in theory, but the pressure drop of steam in longer, more very thin film silk can be larger, and high molecular heat loss can be larger, and this structure heat exchange silk quantitative proportion just will can provide enough heat exchanges and uniform thermal environment very greatly, and heat exchange silk ratio is crossed conference and caused effective film area to reduce, above situation all can cause whole efficiency low.
Patent application 201210072721.4 is disclosed to be coupled the water vapour condensation in Membrane Materials process with former water heating process, and the heat demand of Membrane Materials evaporation process remains and relies on the reduction of the temperature of hot feed liquid self to provide, and membrane efficiency is very low.The energy regenerating of system, when " effect number " is unlimited, namely in the infinitely-great situation of cost of investment, only can reduce by 50% relative to the energy consumption of evaporation.
In sum, the research of current Membrane Materials is very many, most employing is recycled the indirect steam that Membrane Materials produces, the heat that indirect steam condensation discharges is used for heating raw liquid, the temperature drop of material liquid self of recycling heat carries out the evaporation process of Membrane Materials, but due to the enlarge-effect of assembly, the method thermal efficiency after amplification of this heat recovery and utilization is extremely low, consumed energy is high, limits the commercial Application of Membrane Materials.
Summary of the invention
Because the defect existing for above-mentioned prior art, the purpose of this utility model is, provides a kind of two latent membrane component, makes it improve efficiency, reduce energy ezpenditure, be applicable to industrial applications.
To achieve these goals, according to the two latent membrane component of the one that the utility model proposes, putamina, metal tube, hydrophobic membrane silk is comprised; Wherein said putamina is provided with indirect steam outlet, material liquid outlet, condensate outlet, heating steam inlet, feed liquid port; Metal tube is positioned at putamina and the axis being parallel of its axis and putamina; Hydrophobic membrane silk to fill in metal tube and its axis and metal tube axis being parallel; Heating steam inlet, condensate outlet, the confined space composition heating steam path formed between putamina and metal tube; Feed liquid port, material liquid outlet, the confined space formed between metal tube and hydrophobic membrane silk form and process feed liquid path; Indirect steam outlet, hydrophobic membrane silk inner space composition indirect steam path.
The utility model also can be applied to the following technical measures to achieve further.
Aforesaid two latent membrane component, in wherein said putamina, the upper and lower end cap certain distance of distance is welded with two metallic porous sheets, metal tube two ends or two ends outward flange and metallic porous sheet welded seal, form metal tube inside and the outside two parts insulating space of metal tube, two spaces constitute two latent synchronization structure, and the latent heat treatment of steam-condensation and the latent heat of hot water vaporization are absorbed can synchronously carry out.
Aforesaid two latent membrane component, wherein said hydrophobic membrane silk is slightly longer than metal tube; Hydrophobic membrane silk lower end adopts compound sealing technology to build and is sealed in putamina bottom end cover.Upper end is built in distance putamina upper end cover a distance, forms the space of intercommunication in hydrophobic membrane silk and between upper end cover.
Aforesaid two latent membrane component, wherein said hydrophobic membrane silk is slightly longer than metal tube; The upper and lower two ends of hydrophobic membrane silk are being built in distance upper and lower end cap a distance of putamina, in hydrophobic membrane silk and between upper end cover, form the space of intercommunication between hydrophobic membrane silk and bottom end cover.
Aforesaid two latent membrane component, the draw ratio of wherein said putamina is 1-1.5.
Aforesaid two latent membrane component, the loading density of wherein said hydrophobic membrane silk is 8%-15%.
Aforesaid two latent membrane component, wherein said metal tube internal diameter is 6mm-10mm.
Aforesaid two latent membrane component, wherein said hydrophobic membrane silk internal diameter is 0.6mm-2mm, and wall thickness is 0.01mm-0.05mm.
Aforesaid two latent membrane component, wherein said putamina material comprises one or more combinations of polyvinyl chloride, ABS plastic, stainless steel, atactic copolymerized polypropene, cast iron, aluminium alloy, titanium alloy, copper, plastics.
Aforesaid two latent membrane component, the material of wherein said hydrophobic membrane silk comprises one or more combinations of polyether sulfone, polysulfones, Kynoar, polyvinyl chloride, cellulose, polyamide, polypropylene, polyethylene, polytetrafluoroethylene (PTFE).
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, two latent membrane component of the present utility model, at least has following advantages:
One, two latent membrane component of the present utility model, adopts indirect steam to improve temperature and pressure by vapour compression machine, is circulated back in membrane module between putamina and metal tube, with the heat exchange of material liquid evaporation process, is condensed into product-collecting as heating steam.Effective combination of Membrane Materials evaporation process and heating steam condensation process, the condensation latent heat of heating steam just provides the evaporation latent heat demand of Membrane Materials, avoid huge hot feed liquid flow and the large hot feed liquid temperature difference, the recovery of Membrane Materials heat can be carried out efficiently, greatly can improve the efficiency of Membrane Materials system, reduce Membrane Materials operating cost.
Two, two latent membrane component of the present utility model, can reduce many groups equipment investment of prior art heat recovery system, reduce occupation area of equipment.
Three, two latent membrane component of the present utility model, film silk accumulation of pollutants is on the surface of hydrophobic membrane silk, but not hydrophobic membrane silk is inner, easy to clean, effectively reduces the waste of hydrophobic membrane silk.
Four, two latent membrane component of the present utility model, membrane module membrane area is large, and sealing is tight, low cost of manufacture.
Five, two latent membrane component of the present utility model, propose a kind of two latent synchronization structure, namely steam-condensation room is separated by metal tube with hot water vaporization room, and the latent heat treatment of steam-condensation and the latent heat of hot water vaporization are absorbed can synchronously carry out.
Six, two latent membrane component of the present utility model, adopts compound sealing technology to build film silk, both ensure that the requirement of strength of film silk end, given again the protection that film filopodium is enough, avoided fracture of wire risk
Accompanying drawing explanation
Fig. 1 is the membrane component schematic diagram of the two latent membrane component preferred embodiment of the utility model.
Fig. 2 is the membrane component cross-sectional of the two latent membrane component preferred embodiment of the utility model.
Fig. 3 is the Membrane Materials system schematic of the two latent membrane component preferred embodiment of the utility model.
1 indirect steam exports 9 vapour compression machines
2 material liquid outlet 10 heat exchangers
3 condensate outlet 11 circulating pumps
4 hydrophobic membrane silk 12 vavuum pumps
The dense feed liquid storage tank of 5 heating steam inlet 13
6 metal tube 14 feed liquid storage tanks
7 putamina 15 pure water tanks
8 feed liquid port
Detailed description of the invention
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, describe in detail according to its detailed description of the invention of two latent membrane component, step, structure, feature and the effect thereof that the utility model proposes.
The utility model relates generally to following technical terms.
Membrane Materials: utilize miillpore filter to form gas-liquid interface, dynamic carry out liquid by picking and evaporates the process be separated with volatile-resistant substance.
Hydrophobic membrane silk: a kind of hollow fiber film thread, by special materials and process, make film present hydrophobicity, aqueous water can not pass through, and steam can pass through, and realizes Membrane Materials process.
Sensible heat: the heat exchanged when liquid raises or reduces temperature, the sensible heat exchanged when raising as every kg water or reduce by 1 degree is 4.2kJ.
Latent heat: the heat exchanged when liquid evaporation or steam-condensation, under equal conditions quantity is identical for both.The latent heat of every kg water evaporation is about 2300kJ, is about 550 times of sensible heat, and namely wanting evaporation one kg water needs 550 kg water once reducing, or 55 kg water reduce by 10 degree, or condensation one kilogram of steam.
Two latent membrane component: a kind of membrane module structure, hollow fiber film thread is seated in metal tube, the quantity of film silk depends on the circumstances, this kind of metal tube is seated in putamina, metal tube quantity depends on the circumstances, by metal tube and film filate packaged tube, metal tube forms the membrane component of the structure of array in putamina.
Find after deliberation, existing film distillation technology is all the heat transfer type of " sensible heat-latent heat-sensible heat ".As the hot strong brine that flows in capillary-pipe film, by the cooling of self, there is provided heat to flashing to steam by film, the metal tube that steam comes the Contact of capillary-pipe film and metal tube cold is cooled into water, and the cooling water between metal tube and putamina will take away these heats by the intensification of self; Prior art be all by the Condensation of Membrane Materials process and feed liquid warm or material liquid heating process integrated, Membrane Materials process completes in fact, no matter be not effectively combined with condensation process, be inner at membrane module or membrane module is outside, all effectively cannot carry out Energy harvesting.A large amount of latent heat of condensation are used for preheating, cannot high efficiente callback, because need a large amount of cold burden liquid sensible heats to receive the latent heat of this part steam-condensation.In addition, during the evaporation of Membrane Materials, required a large amount of latent heat are only provided by the temperature drop sensible heat of the hot feed liquid self of external heat, same inefficiency.Evaporation latent heat is not effectively combined with condensation latent heat by this technical method, and efficiency is low, is that it cannot the basic reason of industrial applications.
Illustrate that the treatment process of employing " latent heat-latent heat " has higher efficiency than the treatment process of employing " sensible heat-latent heat-sensible heat " below by theory calculate.
The theoretical aquifer yield of " sensible heat-latent heat-sensible heat " treatment process:
The strong brine of 70 DEG C of 1kg/h if flow in capillary-pipe film; Vacuum is 0.08MPa, and it is zero that temperature drops to 60 DEG C of flux, does not consider the resistance of film itself, specific heat of water 4.2kJ/kg* DEG C, the average 2300kJ/kg of heat of vaporization of water, then the maximum aquifer yield of the theory of system is:
4.2kJ/kg*℃*1kg/h*(70℃-60℃)/2300kJ/kg＝0.018kg/h
The theoretical aquifer yield of " latent heat-latent heat " treatment process:
The strong brine of 70 DEG C of 1kg/h if flow between hydrophobic membrane silk and metal tube; Vacuum 0.08MPa, in this method, strong brine temperature can not reduce, and does not consider the resistance of film itself, the average 2300kJ/kg of heat of vaporization of water, then the maximum aquifer yield of the theory of system is:
2300kJ/kg*1kg/h/2300kJ/kg＝1kg/h
In sum, the limit theory efficiency ratios of two kinds of methods to be " latent heat-latent heat " be " sensible heat-latent heat-sensible heat " 55.5 times, in fact along with the aquifer yield of the reduction film of temperature can sharply decline, thus overall efficiency ratio can gap larger.
In the process of " sensible heat-latent heat-sensible heat ", strong brine is reduced by temperature after membrane module, just needs to heat to return again, and needs heat to be [4.2kJ/kg* DEG C of * 1kg/h* (70 DEG C-60 DEG C)]=42kJ/h; Cooling water has been taken away heat by the intensification of self and also will have been discharged, but the temperature of cooling water is too low, so substantially can only be discharged in air.In the process of " latent heat-latent heat ", strong brine is not changed by temperature after membrane module, does not need extra heating; Origin of heat is that the condensation of the newborn indirect steam of membrane component provides, so also very little to the demand of cooling water, is discharged to the heat wasted in air also very little.The performance study of current film can obtain the larger film of aquifer yield, but very low with regard to efficiency when being applied in assembly, system, and main cause is exactly the congenital restriction of " sensible heat-latent heat-sensible heat " this heat-transferring method.The technique that the utility model adopts " latent heat-latent heat " to carry out simultaneously, when heating steam is cooled and while forming condensed water between putamina 7 and metal tube 6, heat passes to the feed liquid between metal tube 7 and hydrophobic membrane silk 4, these heats just make the water in feed liquid flash to indirect steam through hydrophobic membrane silk 4, membrane module is drawn out of in hydrophobic membrane silk 4, evaporation latent heat in Membrane Materials process can be made effectively to be combined with condensation latent heat, and recycled as heating steam by raising indirect steam temperature and pressure, reduce Membrane Materials energy consumption greatly.
Referring to shown in Fig. 1, is the membrane component schematic diagram of the two latent membrane component preferred embodiment of the utility model.Membrane component has putamina 7, putamina 7 is provided with indirect steam outlet 1, material liquid outlet 2, condensate outlet 3, heating steam inlet 5, feed liquid port 8, metal tube 6 is provided with in putamina 7, the axis of metal tube 6 and the axis being parallel of putamina 7, in putamina 7, the upper and lower end cap certain distance of distance is welded with two metallic porous sheets, metal tube 6 two ends outward flange and metallic porous sheet welded seal, form metal tube inside and the outside two parts insulating space of metal tube; The hydrophobic membrane silk 4 of filling non-quantitative in metal tube 6, hydrophobic membrane silk 4 axis and metal tube 6 axis being parallel, metal tube 6 is slightly longer than by hydrophobic membrane silk 4, hydrophobic membrane silk 4 lower end adopts compound sealing technology to build and is sealed in putamina bottom end cover, upper end is built in distance putamina upper end cover a distance, in hydrophobic membrane silk 4 and between upper end cover, form the space of intercommunication, the position relationship before putamina 7, metal tube 6 and hydrophobic membrane silk 4 three are mutual as shown in Figure 2; Heating steam inlet 5, condensate outlet 3, the confined space formed between putamina 7 and metal tube 6 form heating steam path; Feed liquid port 8, material liquid outlet 2, the confined space formed between metal tube 6 and hydrophobic membrane silk 4 form and process feed liquid path; Indirect steam outlet 1, hydrophobic membrane silk 4 inner space composition indirect steam path.Preferred putamina 7 is cylinder type, and metal tube 6 is array distribution in putamina 7, and hydrophobic membrane silk about 4 two ends adopt the sealing of compound sealing technology.After described compound sealing technology refers to that film silk fixed by configuration hard epoxy glue; configure again soft silica gel build with epoxy glue on, hard epoxy glue Assurance component builds the intensity of end, and soft silica gel ensures the safety of film silk and sealing contact position; give the protection that film filopodium is enough, prevent fracture of wire.
Hydrophobic membrane silk 4 is preferably dimensioned to be diameter 0.1mm-10m, length 0.1mm-10m;
The thickness of putamina 7 is preferably 0.1mm-1m;
Metal tube 6 diameter 0.1mm-10m, length 0.1mm-10m;
The quantity of putamina 7 inner metal tube 6 is preferably 1-100000 root;
In metal tube 6, the quantity of hydrophobic membrane silk is preferably 1-1000000 root;
The sealing thickness of hydrophobic membrane silk 4 is preferably 0.1mm-1m.
Putamina 7 material includes but not limited to single material or the multiple combination of the metals such as PVC, ABS, stainless steel, PPR, cast iron, aluminium alloy, titanium alloy, copper or plastics.
The material of metal tube 6 includes but not limited to single material or the multiple combinations such as stainless steel, cast iron, aluminium alloy, titanium alloy, copper.
The material of hydrophobic membrane silk 4 includes but not limited to single material or the multiple combinations such as polyether sulfone, polysulfones, Kynoar, polyvinyl chloride, cellulose, polyamide, polypropylene, polyethylene, polytetrafluoroethylene (PTFE).
Embodiment one:
Modular construction: two latent membrane component A1, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5; Loading density: 15%; Metal tube internal diameter: 10mm; Film silk internal diameter: 2mm; Film silk wall thickness: 0.05mm; Putamina thickness: 2mm, fills the quantity of metal tube: 100, material: titanium alloy, shape: circular, arrangement form in it; Be evenly distributed.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min, vacuum 0.08MPa, heating steam temperature 105 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment two:
Conventional membrane component B, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Membrane module form: conventional, only has film silk and putamina, does not have middle metal tube, draw ratio: 1.5, loading density: 15%, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min, vacuum 0.08MPa.
Service condition: run hot strong brine between putamina and film silk, vacuumizes in film silk, runs live steam, is heated in the heat exchanger of hot strong brine outside putamina.
Embodiment three:
Pillar hydrophobic membrane and heat exchange membranes mixed packing assembly C, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Modular construction: putamina inside filling pillar hydrophobic membrane and heat exchange membranes, without metal tube.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min; Condensed water 25 DEG C.
Service condition: run hot strong brine in hydrophobic membrane silk, runs condensed water in heat exchange membranes, is heated in the heat exchanger of hot strong brine outside putamina.
Example four:
Modular construction: two latent membrane component A2, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.0, loading density 15%, metal tube internal diameter 10mm, film silk internal diameter 2mm, film silk wall thickness 0.05mm.Putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min, vacuum 0.08MPa, heating steam temperature 105 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Example five:
Modular construction: two latent membrane component A3, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density 8%, metal tube internal diameter 10mm, film silk internal diameter 2mm, film silk wall thickness 0.05mm.Putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min, vacuum 0.08MPa, heating steam temperature 105 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Example six:
Modular construction: two latent membrane component A4, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density 15%, metal tube internal diameter 6mm, film silk internal diameter 2mm, film silk wall thickness 0.05mm.Putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min, vacuum 0.08MPa, heating steam temperature 105 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Example seven:
Modular construction: two latent membrane component A5, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density 15%, metal tube internal diameter 10mm, film silk internal diameter 0.6mm, film silk wall thickness 0.05mm.Putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min, vacuum 0.08MPa, heating steam temperature 105 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Example eight:
Modular construction: two latent membrane component A6, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density 15%, metal tube internal diameter 10mm, film silk internal diameter 2mm, film silk wall thickness 0.01mm.Putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 80 DEG C, flow velocity 100L/min, vacuum 0.08MPa, heating steam temperature 105 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Two latent membrane component A1 is identical with prior art membrane module B-C size of components for the utility model, and its test result is as shown in table 1 below:
Table 1 assembly A1, assembly B-C Membrane Materials result
| Assembly A1 | Assembly B | Assembly C | |
| Single aquifer yield (L/min) | 60 | 3 | 4 |
| Salt rejection rate (%) | 99.9 | 99.7 | 99.1 |
| Single water generation ratio (ton steam/ton water) | 1.05 | 3.5 | 2.9 |
| Ton water consumption (Kwh/ ton water) | 102.9 | 343 | 284.2 |
As can be seen from Table 1, under the condition that size of components is identical, the modular construction of assembly B, C defines single aquifer yield,
Single water generation ratio is by referring to the quantity of steam that production 1 ton of pure water consumes, and single water generation ratio is more low better, is used to a kind of index representing energy consumption.This time test is for single assembly, does not have system factor, but comprises the thermal loss that the necessary connected mode of assembly itself causes.
From table 1 Membrane Materials result, when identical size of components and other process conditions identical, the aquifer yield of two latent membrane component A is much larger than other types assembly, and energy consumption is much smaller than other assemblies.
The two latent membrane component A1-A6 of the utility model is Different structural parameters assembly, and its test result is as shown in table 2 below:
Table 2 assembly A1-A6 Membrane Materials result
As can be seen from Table 2, the two latent membrane component of the utility model when keeping higher salt rejection rate, aquifer yield or consume energy all superior compared with prior art; Single aquifer yield affects by many kinds of parameters, the reduction thick along with the reduction of draw ratio, the reduction of metal tube internal diameter, membranous wall and increasing, along with the reduction of loading density, the reduction of film silk internal diameter and reducing.Ton water consumption and water generation ratio change are not quite.Referring to Fig. 3, is the Membrane Materials system schematic of the two latent membrane component preferred embodiment of the utility model.Two latent single-stage circulation Membrane Materials system comprises above-mentioned two latent distillation film component, vapour compression machine 9, dense feed liquid storage tank 13, feed liquid storage tank 14, pure water tank 15 and heat exchanger 10, circulating pump 11, a vavuum pump 12.The indirect steam outlet 1 of described membrane component connects the entrance of vapour compression machine 9, and heating steam inlet 5 connects the outlet of vapour compression machine 9; Feed liquid port 8 connects heat exchanger then by circulating pump 11 binder liquid storage tank 14 or direct binder liquid storage tank 14, and material liquid outlet 2 connects dense feed liquid storage tank 13 by heat exchanger 10 or directly connects dense feed liquid storage tank 13; Condensate outlet 3 connects heat exchanger 10 and then connects pure water tank 15 with vavuum pump 12.
During system stable operation, between metal tube 6 and putamina 7, run heating steam, between hydrophobic membrane silk 4 and metal tube 6, run hot feed liquid, the steam (indirect steam) of hydrophobic membrane silk 4 internal operation Membrane Materials evaporation.Heating steam and hot feed liquid carry out heat exchange by metal tube 6, heating steam condensation is released a large amount of latent heat and is passed to hot feed liquid, hot feed liquid is flashed to steam through Membrane Materials process and is discharged by the indirect steam outlet 1 of hydrophobic membrane silk 4 upper end, and delayed heat feed liquid enters dense feed liquid storage tank 13 by material liquid outlet 2.The indirect steam of discharging improves temperature and pressure by vapour compression machine 9, to be circulated back in membrane module between putamina 7 and metal tube 6 as heating steam by heating steam inlet 5, with the heat exchange of hot feed liquid evaporation process, indirect steam is condensed into product water and discharges membrane component by condensate outlet 3, by heat exchanger utilize remaining heat add pyrogen water after enter pure water tank collect.So repeatedly, in hot feed liquid, the solution of part flashes to indirect steam and becomes high-temperature steam through healthy tendency compressor 9 and heat material liquid, and these indirect steams are condensed into Water Sproading simultaneously; Remaining concentrated solution is collected in dense feed liquid storage tank 13, forms the Membrane Materials process that continuously single-stage multiple-effect utilizes self evaporated vapor, reaches the concentrated of high dense feed liquid and pure water production.In said process, condensation latent heat recovery supplies with evaporation latent heat and is coupled, and indirect steam is coupled with heating steam, reaches the object reducing energy consumption, reduce floor space, improve membrane efficiency, and the scale of film distillation technology is applied becomes possibility.
Embodiment nine:
Two latent single stage membrane Distallation systm S1, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 110L/min, vacuum 0.06MPa, vapour compression machine steam temperature rise 10 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment ten:
Existing conventional vacuum Membrane Materials system D, modular construction: conventional membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Membrane module form: conventional, only has film silk and putamina, does not have middle metal tube, draw ratio: 1.5, loading density: 15%, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 110L/min, vacuum 0.06MPa.
Service condition: run hot strong brine between putamina and film silk, vacuumizes in film silk, runs live steam, is heated in the heat exchanger of hot strong brine outside putamina.
Embodiment 11:
Existing mixed packing vacuum membrane distillation system E, modular construction: pillar hydrophobic membrane and heat exchange membranes mixed packing assembly, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Membrane module form: mixed packing, only has film silk and putamina, does not have middle metal tube, draw ratio: 1.5, loading density: 15%, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 110L/min; Condensed water 25 DEG C.
Service condition: run hot strong brine in hydrophobic membrane silk, runs condensed water in heat exchange membranes, is heated in the heat exchanger of hot strong brine outside putamina.
The two latent single-stage circulation Membrane Materials system S1 and prior art Membrane Materials system D of the utility model, E test result are as shown in table 3:
Table 3 Membrane Materials system S1, D, E test result
| System S1 | System D | System E | |
| Single aquifer yield (L/min) | 55 | 3.2 | 4.3 |
| Salt rejection rate (%) | 99.8 | 99.6 | 99.2 |
| Single water generation ratio (ton steam/ton water) | 1.04 | 3.4 | 2.8 |
| Ton water consumption (Kwh/ ton water) | 102.8 | 342.5 | 283.7 |
Contrast table 3, we can find out, the two latent single-stage circulation Membrane Materials system and method aquifer yield of the utility model is high, and comprehensive power consumption is low, greatly can reduce the operating cost of Membrane Materials.
Embodiment 12:
Two latent single stage membrane Distallation systm S2, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 90 DEG C, feed liquid inlet amount 110L/min, vacuum 0.06MPa, vapour compression machine steam temperature rise 10 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment 13:
Two latent single stage membrane Distallation systm S3, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 50 C, feed liquid inlet amount 110L/min, vacuum 0.06MPa, vapour compression machine steam temperature rise 10 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment 14:
Two latent single stage membrane Distallation systm S4, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 150L/min, vacuum 0.06MPa, vapour compression machine steam temperature rise 10 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment 15:
Two latent single stage membrane Distallation systm S5, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 70L/min, vacuum 0.06MPa, vapour compression machine steam temperature rise 10 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment 16:
Two latent single stage membrane Distallation systm S6, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 110L/min, vacuum 0.08MPa, vapour compression machine steam temperature rise 10 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment 17:
Two latent single stage membrane Distallation systm S7, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 110L/min, vacuum 0.04MPa, vapour compression machine steam temperature rise 10 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment 18:
Two latent single stage membrane Distallation systm S8, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 110L/min, vacuum 0.06MPa, vapour compression machine steam temperature rise 15 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.
Embodiment 19:
Two latent single stage membrane Distallation systm S9, modular construction: two latent membrane component, size of components: Φ 200mm*500mm.Film: hollow fiber film thread.Draw ratio: 1.5, loading density: 15%, metal tube internal diameter: 10mm, film silk internal diameter: 2mm, film silk wall thickness: 0.05mm, putamina thickness 2mm, its interior quantity of filling metal tube: 100, material: titanium alloy, shape: circular, arrangement form; Be evenly distributed.
Test condition: hot strong brine temperature 70 C, feed liquid inlet amount 110L/min, vacuum 0.06MPa, vapour compression machine steam temperature rise 5 DEG C.
Service condition: run heating steam between putamina and metal tube, runs hot strong brine between metal tube and film silk, vacuumizes, runs live steam in film silk.The two latent single-stage circulation Membrane Materials system S1-S9 test result of the utility model is as shown in table 4:
Table 4 Membrane Materials system S1-S9 test result:
| Membrane Materials system | S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S9 |
| Single aquifer yield (L/min) | 55 | 75 | 46 | 73 | 50 | 60 | 50 | 93 | 32 |
| Salt rejection rate (%) | 99.8 | 99.8 | 99.7 | 99.6 | 99.7 | 99.8 | 99.6 | 99.6 | 99.7 |
| Single water generation ratio (ton steam/ | 1.04 | 0.98 | 1.10 | 1.02 | 1.07 | 1.01 | 1.06 | 0.85 | 1.68 |
| Ton water) | |||||||||
| Ton water consumption (Kwh/ ton water) | 102.8 | 89.2 | 113.5 | 93.6 | 110.2 | 100.3 | 105.6 | 85.9 | 108.2 |
Contrast table 4, systematic parameter has larger impact to single aquifer yield and ton water consumption, affects relatively little on rejection and water generation ratio.Wherein single aquifer yield raises along with feeding temperature and increases, and increase along with the increase of inlet amount, increase along with the increase of vacuum, increase along with the increase of compressor increasing extent of temperature, ton water consumption has contrary trend.
Although the utility model discloses as above with preferred embodiment, so and be not used to limit the scope that the utility model implements, the simple equivalence change done according to claims of the present utility model and description and modification, still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a two latent membrane component, comprises putamina, metal tube, hydrophobic membrane silk; It is characterized in that described putamina being provided with indirect steam outlet, material liquid outlet, condensate outlet, heating steam inlet, feed liquid port; Metal tube is positioned at putamina and the axis being parallel of its axis and putamina; Hydrophobic membrane silk to fill in metal tube and its axis and metal tube axis being parallel; Heating steam inlet, condensate outlet, the confined space composition heating steam path formed between putamina and metal tube; Feed liquid port, material liquid outlet, the confined space formed between metal tube and hydrophobic membrane silk form and process feed liquid path; Indirect steam outlet, hydrophobic membrane silk inner space composition indirect steam path.
2. two latent membrane component according to claim 1, it is characterized in that in putamina, the upper and lower end cap certain distance of distance is welded with two metallic porous sheets, metal tube two ends or two ends outward flange and metallic porous sheet welded seal, form metal tube inside and the outside two parts insulating space of metal tube, two spaces constitute two latent synchronization structure, and the latent heat treatment of steam-condensation and the latent heat of hot water vaporization are absorbed can synchronously carry out.
3. two latent membrane component according to claim 2, is characterized in that hydrophobic membrane silk is slightly longer than metal tube; Hydrophobic membrane silk lower end adopts compound sealing technology to build and is sealed in putamina bottom end cover, and upper end is built in distance putamina upper end cover a distance, forms the space of intercommunication in hydrophobic membrane silk and between upper end cover.
4. two latent membrane component according to claim 2, is characterized in that hydrophobic membrane silk is slightly longer than metal tube; The upper and lower two ends of hydrophobic membrane silk are being built in distance upper and lower end cap a distance of putamina, in hydrophobic membrane silk and between upper end cover, form the space of intercommunication between hydrophobic membrane silk and bottom end cover.
5. the two latent membrane component according to claim 3 or 4, is characterized in that the draw ratio of putamina is 1-1.5.
6. the two latent membrane component according to claim 3 or 4, is characterized in that the loading density of hydrophobic membrane silk is 8%-15%.
7. the two latent membrane component according to claim 3 or 4, is characterized in that metal tube internal diameter is 6mm-10mm.
8. the two latent membrane component according to claim 3 or 4, it is characterized in that hydrophobic membrane silk internal diameter is 0.6mm-2mm, wall thickness is 0.01mm-0.05mm.
9. the two latent membrane component according to claim 3 or 4, is characterized in that putamina material comprises one or more combinations of polyvinyl chloride, ABS plastic, stainless steel, atactic copolymerized polypropene, cast iron, aluminium alloy, titanium alloy, copper, plastics.
10. the two latent membrane component according to claim 3 or 4, is characterized in that the material of hydrophobic membrane silk comprises one or more combinations of polyether sulfone, polysulfones, Kynoar, polyvinyl chloride, cellulose, polyamide, polypropylene, polyethylene, polytetrafluoroethylene (PTFE).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365228A (en) * | 2015-07-24 | 2017-02-01 | 北京中环膜材料科技有限公司 | Double-latent membrane distillation assembly |
| CN107935119A (en) * | 2017-12-22 | 2018-04-20 | 北京中新国能环保科技有限公司 | Device, the system and method for photo-thermal method decompression multiple-effect membrane distillation processing desulfurization wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365228A (en) * | 2015-07-24 | 2017-02-01 | 北京中环膜材料科技有限公司 | Double-latent membrane distillation assembly |
| CN107935119A (en) * | 2017-12-22 | 2018-04-20 | 北京中新国能环保科技有限公司 | Device, the system and method for photo-thermal method decompression multiple-effect membrane distillation processing desulfurization wastewater |
| CN107935119B (en) * | 2017-12-22 | 2023-09-12 | 北京中新国能环保科技有限公司 | Device, system and method for treating desulfurization wastewater by photo-thermal decompression multi-effect membrane distillation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171101 Address after: 101500 Canbo Road 2, Miyun Economic and Technological Development Zone, Beijing Co-patentee after: POTEN ENVIRONMENT GROUP CO., LTD. Patentee after: MEMSINO MEMBRANE TECHNOLOGY BEIJING CO., LTD. Co-patentee after: Bo Tian Environmental Technology (Tianjin) Co., Ltd. Address before: 101500 Canbo Road, Miyun Economic Development Zone, Beijing, No. 2 Co-patentee before: POTEN ENVIRONMENT GROUP CO., LTD. Patentee before: MEMSINO MEMBRANE TECHNOLOGY BEIJING CO., LTD. |
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| TR01 | Transfer of patent right |