CN105363348A - Membrane distillation apparatus and membrane distillation system possessing membrane distillation apparatus - Google Patents
Membrane distillation apparatus and membrane distillation system possessing membrane distillation apparatus Download PDFInfo
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- CN105363348A CN105363348A CN201510755355.6A CN201510755355A CN105363348A CN 105363348 A CN105363348 A CN 105363348A CN 201510755355 A CN201510755355 A CN 201510755355A CN 105363348 A CN105363348 A CN 105363348A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/366—Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/14—Pressure control
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Abstract
The invention provides a membrane distillation apparatus and a membrane distillation system possessing the membrane distillation apparatus. The membrane distillation apparatus comprises a shell, a hot-liquid bin arranged in the shell, a cold-liquid inputting bin, a cold-liquid outputting bin, a condenser pipe, an inner membrane and a pressure-adjusting mechanism; the cold-liquid inputting bin and the cold-liquid outputting bin are in communication via the condenser pipe, and the condenser pipe penetrates through the hot-liquid bin; the inner membrane penetrates through the hot-liquid bin and is sleeved around the condenser pipe, and a gap between the inner membrane and the condenser pipe forms a water-generating channel; and the pressure-adjusting mechanism is communicated with the water-generating channel and is used to adjust the pressure in the water-generating channel. By adjusting the pressure in the water-generating channel, a relatively large pressure difference is formed between the water-generating channel and the hot-liquid bin, and steam in the hot-liquid bin is promoted to relatively well penetrate through the inner membrane and enter the water-generating channel and be condensed, the membrane flux of the inner membrane is increased, the efficiency of the membrane distillation apparatus is improved, and steady running of the membrane distillation apparatus is guaranteed.
Description
Technical field
The present invention relates to film distillation technology field, in particular to a kind of distillation device and the Membrane Materials system with this distillation device.
Background technology
Membrane Materials (MD) is the membrane separating process that membrane technology combines with evaporation process, is the one in new membrane isolation technics, can operates at normal temperatures, has the advantages such as efficient, energy-conservation, simple process, small investment, pollution be little.
Existing gap field orientation device comprises cold liquid input storehouse, cold liquid exports storehouse, hydrothermal solution storehouse, produces sump, condenser pipe and inner mold tube.Wherein, hydrothermal solution storehouse and product sump are all arranged at cold liquid input storehouse and cold liquid exports between storehouse, and hydrothermal solution storehouse arranges cold liquid input storehouse and produces between sump.Condenser pipe is arranged in hydrothermal solution storehouse and produces sump, and first end and the cold liquid of condenser pipe input storehouse and is connected, and the second end and the cold liquid of condenser pipe export storehouse and is connected.Inner membrance is arranged in hydrothermal solution storehouse, the first end of inner membrance is connected to the outer wall in cold liquid input storehouse, second end of inner membrance is connected to the hydrothermal solution storehouse outer wall adjacent with producing sump, and inner membrance is socketed on the outside of condenser pipe, have predeterminable range between inner membrance and described condenser pipe, the gap between inner membrance and described condenser pipe is formed produces aquaporin.Produce aquaporin to be connected with product sump.
Existing gap field orientation device operation principle: cold liquid passes in cold liquid input storehouse, exports cold liquid to export storehouse through condenser pipe, exports storehouse discharged by cold liquid by cold liquid.Steam is formed near the liquid gasification at inner membrance place in hydrothermal solution storehouse, under the promotion of inner membrance both sides steam pressure difference, steam enters through inner membrance and produces in aquaporin, condenser pipe cools the steam produced in aquaporin, steam-condensation is made to be water, fall to and produce in sump, discharged by product sump, and the liquid in hydrothermal solution storehouse is stopped by inner membrance, make liquid through inner membrance, the object of gas phase and liquid phase separation cannot be achieved.
Generally speaking, in Membrane Materials process, the size of membrane flux weighs the important indicator of Membrane Materials process quality.In the running of Membrane Materials, as in gap field orientation device, due to the vapour transmission inner membrance of liquid in hydrothermal solution storehouse, and liquid is retained by inner membrance, cause the concentration at intimal surface place higher than the concentration of main body of liquid in hydrothermal solution storehouse, there is the phenomenon of concentration polarization, and, the temperature at intimal surface place is lower than the temperature of main body of liquid in hydrothermal solution storehouse, there is the phenomenon of temperature polarization, again owing to containing impurity in the liquid in hydrothermal solution storehouse, and the formation of intimal surface gel layer, these factors all easily cause inner membrance to be polluted, membrane flux is caused to reduce, reduce the efficiency of Membrane Materials, have impact on the operation of Membrane Materials.
Summary of the invention
Given this, the present invention proposes a kind of distillation device, be intended to solve inner membrance in prior art in distillation device owing to being subject to concentration polarization, temperature difference polarization and polluting the problem that the membrane flux that causes reduces.The invention allows for a kind of Membrane Materials system with this distillation device.
An aspect, the present invention proposes a kind of distillation device, and this distillation device comprises: housing is arranged at the hydrothermal solution storehouse in housing, cold liquid input storehouse, cold liquid output storehouse, condenser pipe, inner membrance and pressure regulating device; Wherein, cold liquid input storehouse is exported storehouse with cold liquid and is connected by condenser pipe, and condenser pipe is arranged in hydrothermal solution storehouse; Inner membrance is arranged in hydrothermal solution storehouse and is socketed on the outside of condenser pipe, and the gap between inner membrance and condenser pipe is formed produces aquaporin; Pressure regulating device is connected with product aquaporin, for regulating the pressure produced in aquaporin.
Further, in above-mentioned distillation device, pressure regulating device comprises pressure regulating chamber; Wherein, pressure regulating chamber is connected with product aquaporin; Housing corresponds to the position of pressure regulating chamber and offers pressure regulating chamber connector for being connected with regulator.
Further, in above-mentioned distillation device, hydrothermal solution storehouse is placed in cold liquid input storehouse and cold liquid exports between storehouse, and pressure regulating chamber is arranged between cold liquid input storehouse and hydrothermal solution storehouse.
Further, in above-mentioned distillation device, inner membrance is connected with the diapire of pressure regulating chamber near one end of pressure regulating chamber.
Further, in above-mentioned distillation device, pressure regulating device comprises tube connector; Wherein, one end of tube connector is connected with product aquaporin, and the other end is placed in outside housing.
In the present embodiment, pressure regulating device is connected with product aquaporin, by regulating the pressure produced in aquaporin, make to produce between aquaporin and hydrothermal solution storehouse and form larger pressure differential, impel the steam in hydrothermal solution storehouse to enter through inner membrance better and produce condensation in aquaporin, solve inner membrance in prior art in distillation device owing to being subject to temperature difference polarization and polluting the problem that the membrane flux that causes reduces, increase the membrane flux of inner membrance, improve the efficiency of distillation device, ensure that the stable operation of distillation device.
Another aspect, the invention allows for a kind of Membrane Materials system, and this Membrane Materials system comprises above-mentioned distillation device.
Further, above-mentioned Membrane Materials system comprises: regulator, is connected with the pressure regulating device in distillation device, for regulating the pressure produced in aquaporin.
Further, above-mentioned Membrane Materials system also comprises: heat-exchanger rig, for regulator is carried out heat exchange from the gas producing aquaporin extraction with the pending liquid being used for inputting to hydrothermal solution storehouse.
Further, in above-mentioned Membrane Materials system, heat-exchanger rig is First Heat Exchanger; The entrance of the first passage of First Heat Exchanger is connected with the outlet of the pressure regulating device in distillation device, and the outlet of the first passage of First Heat Exchanger is connected with regulator; The entrance of the second channel of First Heat Exchanger is for receiving pending liquid, and the outlet of the second channel of First Heat Exchanger is connected with the entrance in the hydrothermal solution storehouse in distillation device.
Further, above-mentioned Membrane Materials system also comprises: the second heat exchanger; Wherein, the entrance of the first passage of the second heat exchanger is for receiving pending liquid, and the outlet of the first passage of the second heat exchanger is connected with the entrance of the second channel of First Heat Exchanger; The outlet that entrance and the cold liquid of the second channel of the second heat exchanger export storehouse is connected, and the entrance that outlet and the cold liquid of the second channel of the second heat exchanger input storehouse is connected.
Because distillation device has above-mentioned effect, so the Membrane Materials system with this distillation device also has corresponding technique effect.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
The structural representation of the distillation device that Fig. 1 provides for the embodiment of the present invention;
In the distillation device that Fig. 2 provides for the embodiment of the present invention A-A to structural representation;
The structural representation of the Membrane Materials system that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Distillation device embodiment:
See Fig. 1 and Fig. 2, there is shown the preferred structure of the distillation device that the embodiment of the present invention provides.As shown in the figure, this distillation device comprises: housing 1, the hydrothermal solution storehouse 2 be arranged in housing, cold liquid input storehouse 3, cold liquid export storehouse 4, condenser pipe 5, inner membrance 6 and pressure regulating device.
Those skilled in the art should be appreciated that the cold liquid input storehouse 3 in distillation device is exported storehouse 4 with cold liquid and is connected by condenser pipe 5, and condenser pipe 5 and inner membrance 6 are all arranged in hydrothermal solution storehouse 2.Inner membrance 6 is sheathed on the outside of condenser pipe 5, and inner membrance 6 and condenser pipe 5 have predeterminable range, and the gap between inner membrance 6 and condenser pipe 5 is formed produces water channel 7.
Pressure regulating device is connected with product water channel 7, for regulating the pressure produced in aquaporin.Particularly, what pass in hydrothermal solution storehouse 2 is hot pending liquid.Pass into cold liquid in condenser pipe 5, the steam that cold liquid is used for producing in water channel 7 carries out cooling down.Gap between the inwall of inner membrance 6 and the outer wall of condenser pipe 5 is formed produces water channel 7, and the outer wall of inner membrance 6 contacts with the liquid in hydrothermal solution storehouse 2.In the present embodiment, the pressure produced in aquaporin can be reduced by pressure regulating device, make to produce formation negative pressure in water channel 7, increase the membrane flux of inner membrance 6.
During concrete enforcement, inner membrance 6 can be hollow-fibre membrane, also can be tubular membrane.The material of inner membrance 6 can be the hydrophobic materials such as PTFE, PVDF or PP.The membrane aperture of inner membrance 6 can be 0.1 ~ 0.5 μm, and the porosity of film can be between 60% ~ 80%.
Originally it should be appreciated by those skilled in the art that distillation device can also comprise and produce sump 15, this product sump 15 is arranged at hydrothermal solution storehouse 2 and cold liquid exports between storehouse 4, and is connected with product water channel 7, for receiving the steam condensate (SC) produced in water channel 7.Housing 1 corresponds to the position of producing sump 15 and offers product sump outlet, discharges for the steam condensate (SC) that will receive.
During work, cold liquid inputs through cold liquid input storehouse 3, then enter cold liquid by condenser pipe 5 and export storehouse 4, and the outlet that logical supercooled liquid exports on storehouse 4 exports.In hydrothermal solution storehouse 2, the pending liquid of heat produces steam, and vapour transmission inner membrance 6 enters and produces in water channel 7, and under the effect of the cold liquid in condenser pipe 5, steam-condensation is water.Pressure regulating device regulates the pressure produced in water channel 7, make the pressure in the hydrothermal solution storehouse 2 of inner membrance both sides larger with the differing pressure produced in water channel 7, steam in hydrothermal solution storehouse 2 enters product water channel 7 through inner membrance 6 better under the effect of larger pressure differential, thus increases the membrane flux of inner membrance 6.
Can find out, in the present embodiment, pressure regulating device is connected with product water channel 7, by regulating the pressure produced in water channel 7, make to produce between water channel 7 and hydrothermal solution storehouse 2 and form larger pressure differential, impelling the steam in hydrothermal solution storehouse 2 to enter through inner membrance 6 better produces in water channel 7, in condenser pipe 5 cold liquid effect under steam-condensation be water, solve inner membrance 6 in prior art in distillation device owing to being subject to concentration polarization, the problem that the membrane flux that temperature difference polarization and pollution cause reduces, increase the membrane flux of inner membrance 6, improve the efficiency of distillation device, ensure that the stable operation of distillation device.
Continue see Fig. 1 and Fig. 2, in above-described embodiment, pressure regulating device can comprise pressure regulating chamber 8.Wherein, pressure regulating chamber 8 is connected with product water channel 7, and the position that housing 1 corresponds to pressure regulating chamber offers pressure regulating chamber connector 9, and pressure regulating chamber connector 9 is for being connected with regulator.Particularly, regulator, for regulating the pressure in pressure regulating chamber 8, because pressure regulating chamber 8 is connected with product water channel 7, so regulator not only regulates the pressure in pressure regulating chamber 8, also regulates the pressure produced in water channel 7.Regulator can be decompressor.Further, regulator can by the gas in extraction pressure regulating chamber 8 to reduce the pressure in pressure regulating chamber 8.
During work, regulator regulates the pressure in pressure regulating chamber 8, pressure in pressure regulating chamber 8 is changed, because pressure regulating chamber 8 is connected with product water channel 7, the then change of pressure in pressure regulating chamber 8, the pressure produced in water channel 7 is also changed accordingly, and then the pressure differential making the pressure in hydrothermal solution storehouse 2 larger with the pressure initiation produced in water channel 7, impel the steam in hydrothermal solution storehouse 2 to enter product water channel 7 through inner membrance 6 better under the effect of pressure differential.
Can find out, in the present embodiment, by arranging pressure regulating chamber 8, regulate the pressure in pressure regulating chamber and then have adjusted the pressure produced in water channel 7, structure is simple, is easy to operation.
Continue see Fig. 1 and Fig. 2, in above-described embodiment, hydrothermal solution storehouse 2 is arranged at cold liquid input storehouse 3 and cold liquid exports between storehouse 4, and, pressure regulating chamber 8 is arranged between cold liquid input storehouse 3 and hydrothermal solution storehouse 2, the pressure be convenient to producing in water channel 7 regulates, and avoids the condensed water producing steam in water channel 7 on pressure controlled impact, guarantees the stable operation of pressure regulating chamber 8.
During concrete enforcement, pressure regulating chamber 8 with produce a kind of embodiment of being communicated with between water channel 7 for: one end of inner membrance 6 can be connected to the diapire (wall of the below shown in Fig. 1) that cold liquid inputs storehouse 3, inner membrance 6 is arranged in pressure regulating chamber 8 and hydrothermal solution storehouse 2, and position inner membrance 6 corresponding to pressure regulating chamber 8 is provided with and is communicated with pressure regulating chamber 8 and the device producing water channel 7, this device can be through hole, is convenient to pressure regulating chamber 8 and regulates the pressure produced in water channel 7.
It should be noted that, during concrete enforcement, hydrothermal solution storehouse 2 and product water channel 7, pressure regulating chamber 8 are isolation, be not communicated with mutually, and pressure regulating chamber 8 is only connected with product water channel 7, produce the change of pressure in water channel 7 with the change and then impact of guaranteeing pressure in pressure regulating chamber 8, the pending liquid avoided in hydrothermal solution storehouse 2 infiltrates pressure regulating chamber 8 and infiltrates to produce in water channel 7 through inner membrance 6 affects pressure regulating chamber 8 to the pressure regulation of producing water channel 7.
Continue see Fig. 1 and Fig. 2, pressure regulating chamber 8 with produce the another kind of embodiment that is communicated with between water channel 7 for: inner membrance 6 can also be connected with the diapire of pressure regulating chamber 8 (wall of the below shown in Fig. 1) near one end of pressure regulating chamber 8.Particularly, inner membrance 6 is connected with product sump 15 away from one end of pressure regulating chamber 8, then the steam condensate (SC) produced in water channel 7 inputs to and produces in sump 15.The diapire of pressure regulating chamber 8 is isolated with the liquid in hydrothermal solution storehouse 2 by pressure regulating chamber 8, can prevent the pending liquid of the heat in hydrothermal solution storehouse 2 from entering in pressure regulating chamber 8.Inner membrance 6 is only arranged in hydrothermal solution storehouse 2, and the diapire of pressure regulating chamber 8 offers perforate, and one end of inner membrance 6 is connected to perforate, make to produce water channel 7 and be connected with pressure regulating chamber 8, and the pending liquid of heat in hydrothermal solution storehouse 2 cannot enter pressure regulating chamber 8.
Can find out, in the present embodiment, inner membrance 6 is connected to the diapire of pressure regulating chamber 8, ensure that and produce water channel 7 and being communicated with between pressure regulating chamber 8, and expand the space be communicated with between the two, be convenient to the adjustment of pressure in pressure regulating chamber 8 and product water channel 7, structure is simple, easy to implement.
Continue see Fig. 1 and Fig. 2, pressure adjusting structure, except can comprising pressure regulating chamber 8, can also comprise tube connector.Wherein, one end of this tube connector is connected with product water channel 7, and the other end is placed in outside housing 1.Particularly, tube connector is arranged in housing 1, and one end that tube connector is placed in housing 1 outside is connected with regulator, regulator regulates the pressure produced in water channel 7 by tube connector, makes the pressure differential that the pressure in hydrothermal solution storehouse 2 is larger with the pressure initiation produced in water channel 7.
Can find out, in the present embodiment, regulator regulates the pressure produced in water channel 7 by tube connector, and structure is simple, is easy to operation.
In sum, the present embodiment, pressure regulating device is connected with product water channel 7, by regulating the pressure producing in aquaporin 7, make to produce between water channel 7 and hydrothermal solution storehouse 2 and form larger pressure differential, impel the steam in hydrothermal solution storehouse to enter through inner membrance 6 better and produce condensation in water channel 7, increase the membrane flux of inner membrance 6, improve the efficiency of distillation device, ensure that the stable operation of distillation device.
Membrane Materials system embodiment:
The embodiment of the present invention also proposed a kind of Membrane Materials system, and this Membrane Materials system comprises above-mentioned distillation device.Wherein, the specific implementation process of distillation device illustrates see above-mentioned, and the present embodiment does not repeat them here.Because distillation device has above-mentioned effect, so the Membrane Materials system with this distillation device also has corresponding technique effect.
See the structural representation of the Membrane Materials system that Fig. 3, Fig. 3 provide for the embodiment of the present invention.As shown in the figure, this Membrane Materials system can also comprise regulator 10.This regulator 10 is connected with the pressure regulating device in distillation device, for regulating the pressure in pressure regulating device.During concrete enforcement, regulator 10 can be connected with the pressure regulating chamber 8 in distillation device by the pressure regulating chamber connector 9 on the housing 1 of distillation device, also can be connected with the tube connector in distillation device.Regulator 10 can be vavuum pump, the gas in pressure regulating device is extracted by vavuum pump, to reduce the pressure in pressure regulating device, because pressure regulating device is connected with product water channel 7, then vavuum pump also can extract and produce gas in water channel 7 and steam, to reduce to produce the pressure in water channel 7, make hydrothermal solution storehouse 2 poor with product water channel 7 mineralization pressure, increase the membrane flux of inner membrance 6.
It should be noted that, when specifically implementing, what regulator 10 also can be well known to those skilled in the art can realize other devices regulating pressure object, and the present embodiment does not do any restriction to this.
Continue see Fig. 3, as shown in the figure, in above-described embodiment, this Membrane Materials system can also comprise water tank 12, this water tank 12 is connected with regulator 10, for storing regulator 10 from the condensed water producing the steam extracted out in water channel 7, like this, be convenient to this steam condensate (SC) to recycle, improve the utilization rate of the energy.Preferably, regulator 10 is connected with the outlet of pressure regulating device by water tank 12, and particularly, regulator 10 is connected with pressure regulating chamber connector 9 or tube connector by water tank 12.
Continue see Fig. 3, in the various embodiments described above, this Membrane Materials system can also comprise heat-exchanger rig.This heat-exchanger rig is used for regulator 10 to carry out heat exchange from producing the gas extracted out in water channel 7 with the pending liquid being used for inputting to hydrothermal solution storehouse 2.Particularly, pressure regulating device is produce the steam passed through inner membrance 6 by hydrothermal solution storehouse 2 in water channel 7 by the gas producing water channel 7 extraction, cooling down is needed because steam has certain temperature, and the pending liquid of input needs heat temperature raising to produce steam better in hydrothermal solution storehouse 2 in hydrothermal solution storehouse 2, therefore, the steam produced in water channel 7 and pending liquid are carried out heat exchange, arrange or export in water tank 12 outside after making the reduction of the temperature of steam be condensed into water, and the rising of the temperature of pending liquid inputs in hydrothermal solution storehouse 2.
Can find out, in the present embodiment, pressure regulating device is carried out heat exchange from the gas producing water channel 7 extraction with the pending liquid being used for inputting to hydrothermal solution storehouse 2 by heat-exchanger rig, take full advantage of the heat producing the gas that water channel 7 is extracted out, improve the heat recovery rate of Membrane Materials system, decrease the loss of heat in Membrane Materials system.
Continue see Fig. 3, as shown in the figure, in above-described embodiment, heat-exchanger rig can be First Heat Exchanger 11, the entrance 111 of the first passage of First Heat Exchanger is connected with the outlet of the pressure regulating device in distillation device, the outlet 112 of the first passage of First Heat Exchanger is connected with regulator 10, the entrance 113 of the second channel of First Heat Exchanger is for receiving pending liquid, the outlet 114 of the second channel of First Heat Exchanger is connected with the entrance in the hydrothermal solution storehouse 2 in distillation device, the gas exported by pressure regulating device in the first passage of then First Heat Exchanger and the pending liquid in second channel carry out heat exchange.Particularly, the entrance 111 of First Heat Exchanger first passage is connected with the pressure regulating chamber connector 9 in distillation device.The outlet 112 of the first passage of First Heat Exchanger is connected with regulator 10 by water tank 12.
Those skilled in the art should understand that, this Membrane Materials system can also comprise hydrothermal solution storage tank 18, hydrothermal solution storage tank 18 is arranged between the outlet 114 of the second channel of First Heat Exchanger and the entrance in hydrothermal solution storehouse 2, hydrothermal solution storage tank 18 is for storing the pending liquid after heating, and the pending liquid in hydrothermal solution storehouse 2 after input heating.
During work, regulator 10 extracts in pressure regulating chamber 8 and the gas produced in water channel 7 by pressure regulating chamber connector 9, and gas enters in First Heat Exchanger 11 by the entrance 111 of the first passage of First Heat Exchanger, waits for cooling down; Pending liquid enters in First Heat Exchanger 11 by the second channel entrance 113 of First Heat Exchanger, waits for that heat exchange heats up.In First Heat Exchanger 11, gas and pending liquid carry out heat exchange, and discharge after making the reduction of the temperature of gas be condensed into water, the temperature of pending liquid raises and inputs in hydrothermal solution storehouse 2.
Can find out, in the present embodiment, heat-exchanger rig is First Heat Exchanger, and structure is simple, easy to operate.
Continue see Fig. 3, as shown in the figure, in the various embodiments described above, Membrane Materials system can also comprise the second heat exchanger 13, wherein, the entrance 131 of the first passage of the second heat exchanger is for receiving pending liquid, and the outlet 132 of the first passage of the second heat exchanger is connected with the entrance 113 of the second channel of First Heat Exchanger; The outlet that entrance 133 and the cold liquid of the second channel of the second heat exchanger export storehouse 4 is connected, the entrance that outlet 134 and the cold liquid of the second channel of the second heat exchanger input storehouse 3 is connected, then the pending liquid in the first passage of the second heat exchanger and the cold liquid in second channel export the cold liquid that storehouse 4 exports and carries out heat exchange.
During work, pending liquid inputs in the first passage of the second heat exchanger 13 by the entrance 131 of the first passage of the second heat exchanger, waits for that heat exchange heats up; Cold liquid exports the cold liquid of storehouse 4 output owing to carrying out heat exchange so cold liquid has certain temperature with the steam produced in water channel 7, is then inputed to by this cold liquid in the second channel of the second heat exchanger 13, waits for heat exchange cooling.In the second heat exchanger 13, pending liquid carries out heat exchange with the cold liquid with uniform temperature, after pending liquid heat exchange, temperature raises to input in First Heat Exchanger 11 and proceeds to input to hydrothermal solution storehouse 2 after heat exchange heats up, and after cold liquid heat exchange, temperature reduction inputs in cold liquid input storehouse 3 and continues and the steam heat-exchanging in product water channel 7.
It should be noted that, First Heat Exchanger 11 and the second heat exchanger 13 can for being arranged in series, also can for being arranged in parallel, and when specifically implementing, can determine according to actual conditions, the present embodiment does not do any restriction to this.But the present embodiment is introduced for being arranged in series with First Heat Exchanger 11 and the second heat exchanger 13.
Those skilled in the art should understand that, cold liquid storage device 19 can also be comprised in Membrane Materials system, exported in cold liquid storage storage device 19 by the outlet 134 of the second channel of the second heat exchanger after the cold liquid that cold liquid output storehouse 4 exports carries out heat exchange in the second heat exchanger 13 and store, the entrance that cold liquid storage device 19 can also input storehouse 3 with liquid cold in distillation device is connected, the cold liquid stored is exported in cold liquid input storehouse 3, cold liquid is recycled.During concrete enforcement, temperature in order to ensure the cold liquid in input cold liquid input storehouse 3 reaches default low temperature, can arrange refrigerating plant 17 between the entrance that the outlet of cold liquid storage device 19 and cold liquid input storehouse 3, this refrigerating plant 17 is for carrying out cooling down to cold liquid.During concrete enforcement, default low temperature can be determined according to actual conditions, and the present embodiment does not do any restriction to this.
Continue see Fig. 3, in the various embodiments described above, Membrane Materials system can also comprise preheater 14, wherein, preheater 14 can be arranged between the outlet 114 of the second channel of First Heat Exchanger and the entrance in hydrothermal solution storehouse 2, also can be arranged between First Heat Exchanger 11 and the second heat exchanger 13, when specifically implementing, can determine according to actual conditions, the present embodiment does not do any restriction to this.
Continue see Fig. 3, as shown in the figure, in the various embodiments described above, Membrane Materials system can also comprise: produce water storage tank 16, produces water storage tank 16 for being connected with the product sump outlet of the product sump 15 in distillation device, will produce the reclamation of condensate water in sump 15.
It should be noted that, it should be appreciated by those skilled in the art that Membrane Materials system can also comprise dense hydrothermal solution storage tank 20, this dense hydrothermal solution storage tank 20 is connected with the outlet in hydrothermal solution storehouse 2, for store hydrothermal solution storehouse 2 export process after liquid.It is known that preheater 14 in Membrane Materials system, refrigerating plant 17, hydrothermal solution storage tank 18, cold liquid storage device 19, product water storage tank 16 and dense hydrothermal solution storage tank 20 are those skilled in the art, therefore do not repeat.
In sum, in the present embodiment, by regulating the pressure produced in water channel 7 in distillation device, make to produce between water channel 7 and hydrothermal solution storehouse 2 and form larger pressure differential, impel the steam in hydrothermal solution storehouse 2 to enter through inner membrance 6 better and produce condensation in water channel 7, increase the membrane flux of inner membrance 6, improve the efficiency of distillation device; In addition, pressure regulating device is carried out heat exchange from the gas producing water channel 7 extraction with the pending liquid being used for inputting to hydrothermal solution storehouse 2 by the heat-exchanger rig in Membrane Materials system, take full advantage of the heat of the gas produced in water channel 7, improve the heat recovery rate of Membrane Materials system, decrease the loss of heat in Membrane Materials system.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a distillation device, is characterized in that, comprising: housing (1), be arranged at the hydrothermal solution storehouse (2) in described housing, cold liquid input storehouse (3), cold liquid exports storehouse (4), condenser pipe (5), inner membrance (6) and pressure regulating device; Wherein,
Described cold liquid input storehouse (3) is exported storehouse (4) with described cold liquid and is connected by described condenser pipe (5), and described condenser pipe (5) is arranged in described hydrothermal solution storehouse (2);
Described inner membrance (6) is arranged in described hydrothermal solution storehouse (2) and is socketed on the outside of described condenser pipe, and the gap between described inner membrance (6) and described condenser pipe (5) is formed produces aquaporin (7);
Described pressure regulating device is connected with described product aquaporin (7), for regulating the pressure in described product aquaporin.
2. distillation device according to claim 1, is characterized in that, described pressure regulating device comprises pressure regulating chamber (8); Wherein,
Described pressure regulating chamber (8) is connected with described product aquaporin (7);
Described housing (1) offers the pressure regulating chamber connector (9) for being connected with regulator (10) corresponding to the position of described pressure regulating chamber.
3. distillation device according to claim 2, it is characterized in that, described hydrothermal solution storehouse (2) is placed in described cold liquid input storehouse (3) and described cold liquid exports between storehouse (4), and described pressure regulating chamber (8) is arranged between described cold liquid input storehouse (3) and described hydrothermal solution storehouse (2).
4. the distillation device according to Claims 2 or 3, is characterized in that, described inner membrance (6) is connected with the diapire of described pressure regulating chamber (8) near one end of described pressure regulating chamber (8).
5. distillation device according to claim 1, is characterized in that, described pressure regulating device comprises tube connector; Wherein,
One end of described tube connector is connected with described product aquaporin (7), and the other end is placed in described housing (1) outward.
6. a Membrane Materials system, is characterized in that, comprises the distillation device according to any one of claim 1 to 5.
7. Membrane Materials system according to claim 6, is characterized in that, also comprise:
Regulator (10), is connected with the described pressure regulating device in described distillation device, for regulating the pressure in described product aquaporin (7).
8. Membrane Materials system according to claim 7, is characterized in that, also comprise:
Heat-exchanger rig, for gas that described regulator (10) is extracted out from described product aquaporin (7) with carry out heat exchange for the pending liquid inputted to described hydrothermal solution storehouse (2).
9. Membrane Materials system according to claim 8, is characterized in that, described heat-exchanger rig is First Heat Exchanger (11); Wherein,
The entrance of the first passage of described First Heat Exchanger (11) is connected with the outlet of the described pressure regulating device in described distillation device, and the outlet of the first passage of described First Heat Exchanger (11) is connected with described regulator (10);
The entrance of the second channel of described First Heat Exchanger (11) is for receiving pending liquid, and the outlet of the second channel of described First Heat Exchanger (11) is connected with the entrance of the described hydrothermal solution storehouse (2) in described distillation device.
10. Membrane Materials system according to claim 9, is characterized in that, also comprise: the second heat exchanger (13); Wherein,
The entrance of the first passage of described second heat exchanger (13) is for receiving pending liquid, and the outlet of the first passage of described second heat exchanger (13) is connected with the entrance of the second channel of described First Heat Exchanger (11);
The outlet that entrance and the described cold liquid of the second channel of described second heat exchanger (13) export storehouse (4) is connected, and the entrance that outlet and the described cold liquid of the second channel of described second heat exchanger (13) input storehouse (3) is connected.
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