CN110606522B - Convection type-II type evaporation condensing unit and sea water desalination device - Google Patents
Convection type-II type evaporation condensing unit and sea water desalination device Download PDFInfo
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- CN110606522B CN110606522B CN201911017895.9A CN201911017895A CN110606522B CN 110606522 B CN110606522 B CN 110606522B CN 201911017895 A CN201911017895 A CN 201911017895A CN 110606522 B CN110606522 B CN 110606522B
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- 239000013535 sea water Substances 0.000 title claims abstract description 61
- 238000001704 evaporation Methods 0.000 title claims abstract description 58
- 230000008020 evaporation Effects 0.000 title claims abstract description 58
- 238000010612 desalination reaction Methods 0.000 title claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 238000009833 condensation Methods 0.000 claims abstract description 81
- 230000005494 condensation Effects 0.000 claims abstract description 77
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 239000012153 distilled water Substances 0.000 claims abstract description 33
- 238000005507 spraying Methods 0.000 claims description 27
- 150000003839 salts Chemical class 0.000 claims description 6
- 238000011033 desalting Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a convection type-II evaporation and condensation unit which is used for a sea water desalting device. After cold sea water enters the condensation layer, on one hand, heat is exchanged between the condensation layer and steam, the steam is converted into phase change latent heat of distilled water, and on the other hand, the phase change latent heat is heated by hot water in the heating layer. The invention also discloses a sea water desalting device with the convection type-II evaporation condensing unit.
Description
Technical Field
The invention relates to the technical field of sea water desalination, in particular to a convection type-II evaporation condensing unit and a sea water desalination device.
Background
With the development of urban industry, industry and life have increasingly demanded fresh water, and large-scale efficient low-cost fresh water acquisition from seawater has increasingly become an important development approach. At present, the distillation sea water desalination technology is the most commonly used technology, but the technology directly heats sea water at high temperature to generate steam and then cools the steam with cold water to obtain distilled water, and a large amount of energy is consumed in the heating and cooling processes, so that the cost for generating one ton of fresh water is high, and even insufficient to offset the cost.
Disclosure of Invention
Based on the above, it is necessary to provide a convection type-II evaporation condensing unit and a sea water desalination apparatus which are low in cost and high in productivity.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a convection type-II type evaporation condensing unit for sea water desalination, sea water desalination includes a plurality of convection type-II type evaporation condensing unit, vertical positive reverse stack of convection type-II type evaporation condensing unit, convection type-II type evaporation condensing unit includes zone of heating, condensation layer and layer of admitting air, the zone of heating the condensation layer with the layer of admitting air is from top to bottom stacks gradually and sets up, the zone of heating the condensation layer with the layer of admitting air is the buckled plate structure, the zone of heating is used for supplying hot water to flow through, the zone of condensing is used for supplying the sea water to flow through, the zone of heating is soaked in the condensation layer, the inlet port has been seted up on the layer of admitting air, is located the below the steam that the zone of heating of convection type-II type evaporation condensing unit produced, through being located the top the inlet port of convection type-II type evaporation condensing unit rises, adheres to the condensation layer the downside of condensation layer forms the drop of water.
Further, the heating layer comprises a plurality of heat source pipes, the plurality of heat source pipes are sequentially arranged along the groove direction to form a corrugated plate type structure together, and the corrugated direction of the heating layer is perpendicular to the axial direction of the heat source pipes.
Further, a heat source inlet pipe and a heat source outlet pipe are respectively arranged at two sides of the heat source pipe, the heat source outlet pipe is arranged opposite to the heat source inlet pipe, the heat source inlet pipe is communicated with the heat source pipe, the heat source outlet pipe is communicated with the heat source pipe, the hot water flows in from the heat source inlet pipe, flows through the heat source pipe and flows out from the heat source outlet pipe.
Further, a water spraying main pipe is arranged on one side of the condensation layer, a plurality of parallel water spraying pipes are communicated on the water spraying main pipe, one water spraying pipe corresponds to one groove of the condensation layer, one end, far away from the water spraying main pipe, of the water spraying pipe stretches into the corresponding groove of the condensation layer, seawater passes through the seawater pipe, flows into the condensation layer through the seawater pipe, and after the seawater is filled, the seawater overflows from the opposite side edges of the seawater pipe.
Further, the air inlet holes on each ridge of the air inlet layer are multiple, and the air inlet holes are distributed in a linear arrangement at the ridge.
Further, a distilled water pipe is arranged on one side of the air inlet layer, a plurality of parallel distilled water collecting pipes are communicated with the distilled water pipe, one distilled water collecting pipe corresponds to one groove of the air inlet layer, and one end of the distilled water collecting pipe stretches into the corresponding groove of the air inlet layer.
Further, the thickness of the condensing layer and the plate of the air inlet layer is 1.5-3mm, and the interval between the condensing layer and the air inlet layer is 2-4mm.
The seawater desalination device comprises the convection type-II evaporation and condensation units, wherein the convection type-II evaporation and condensation units are arranged in a longitudinal positive and negative stacking mode, hot water flows upwards from the convection type-II evaporation and condensation unit positioned below to the convection type-II evaporation and condensation unit positioned above, and seawater flows downwards from the convection type-II evaporation and condensation unit positioned above to the convection type-II evaporation and condensation unit positioned below.
The beneficial effects of the invention are as follows: the convection type-II evaporation condensing unit or the sea water desalting device provided by the invention has the advantages that after cold sea water enters the condensing layer, on one hand, heat is exchanged between the condensing layer and steam, the steam is received to be converted into phase change latent heat of distilled water, and on the other hand, the phase change latent heat is heated by hot water in the heating layer, so that compared with the prior art, the convection type-II evaporation condensing unit or the sea water desalting device does not need additional cooling water for cooling, the energy is saved, the cost is low, and the productivity is high.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a schematic view of the structure of a sea water desalination device of the present invention;
FIG. 2 is an enlarged view of a portion of the sea water desalination device shown in FIG. 1 at A;
FIG. 3 is a schematic diagram of a convection type-II evaporative condensing unit in the desalination apparatus of FIG. 1;
FIG. 4 is a schematic view of the heating layer structure of the convection type-II evaporative condensing unit of FIG. 3;
FIG. 5 is a schematic view of the structure of the condensing layer in the convection type-II evaporative condensing unit shown in FIG. 3;
FIG. 6 is a schematic view of the gas inlet layer of the convection type-II evaporative condensing unit of FIG. 3;
fig. 7 is a schematic view of a process of desalinating sea water in the sea water desalinating apparatus shown in fig. 1.
The names and the numbers of the parts in the figure are respectively as follows:
convection type II type evaporation cold heating layer 1 heat source tube 11
Coagulation unit 100
Heat source inlet pipe 12 heat source outlet pipe 13 heat source header pipe 14
Condensation layer 2 water spray header 21
Air inlet hole 31 of air inlet layer 3 of water spray pipe 22
Distilled water collecting pipe 32 distilled water pipe 33
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the invention only by way of illustration, and therefore it shows only the constitution related to the invention.
Referring to fig. 1 to 7, the present invention provides a seawater desalination device, which includes a convection type-II evaporation and condensation unit 100, the convection type-II evaporation and condensation unit 100 includes a plurality of convection type-II evaporation and condensation units 100, the plurality of convection type-II evaporation and condensation units 100 are vertically stacked in a positive and negative direction (the vertically stacked direction refers to, referring to fig. 3, the left side of the convection type-II evaporation and condensation unit 100 is an end a, the right side of the convection type-II evaporation and condensation unit 100 is an end B, the ends a of the upper and lower convection type-II evaporation and condensation units 100 adjacent to the convection type-II evaporation and condensation unit are located on the right side, the end B is located on the left side), the convection type-II evaporation and condensation unit 100 includes a heating layer 1, a condensation layer 2, and an air intake layer 3, and the heating layer 1, the condensation layer 2, and the air intake layer 3 are sequentially stacked from top to bottom. In operation, steam generated in the heating layer 1 of the convection-type II evaporative condensing unit 100 located below rises through the air inlet layer 3 of the convection-type II evaporative condensing unit 100 located above and adheres to the condensing layer 2, and water droplets are formed on the lower side of the grooves of the condensing layer 2.
In addition, the heating layer 1, the condensing layer 2 and the air inlet layer 3 are all corrugated plate structures, and the trend, the shape and the size of the grooves and the ridges are consistent with each other, so that the grooves and the ridges tend to be attached to each other. Meanwhile, the heating layer 1 of the convection type-II evaporation and condensation unit 100 positioned below and the air inlet layer 3 of the convection type-II evaporation and condensation unit 100 positioned above tend to be attached together, so that the thickness of the convection type-II evaporation and condensation unit 100 can be obviously reduced, the stacking layer number of the convection type-II evaporation and condensation unit 100 is effectively increased, and the utilization rate of a longitudinal space is improved.
The heating layer 1 includes a plurality of heat source tubes 11, and the plurality of heat source tubes 11 are sequentially arranged along the groove direction to form a corrugated plate structure, and the corrugated direction is perpendicular to the axial direction of the heat source tubes 11. The heat source tube 11 is provided with a heat source inlet tube 12 and a heat source outlet tube 13 on both sides thereof, the heat source outlet tube 13 being disposed opposite to the heat source inlet tube 12, the heat source tube 11 being disposed between the heat source inlet tube 12 and the heat source outlet tube 13, the heat source inlet tube 12 being in communication with the heat source tube 11, the heat source outlet tube 13 being in communication with the heat source tube 11. In operation, hot water (the flow direction of the hot water is a solid thick arrow) flows from the heat source inlet tube 12, through the heat source tube 11, toward the heat source outlet tube 13, and out into the heating layer 1 of the above-located convection-type II evaporative condensing unit 100.
In the present embodiment, the hot water flowing into the heat source tube 11 is hot distilled water, and the hot distilled water can prevent clogging of the pipe due to salt accumulation. Wherein, the hot distilled water can be obtained by heat exchange between distilled water and hot seawater or can be prepared by solar energy and industrial waste heat.
The condensation layer 2 is a container with an opening at the upper end, one side edge of the condensation layer 2 is higher than the side edge opposite to the condensation layer 2, a water spraying main pipe 21 is arranged on one side edge of the condensation layer 2, a plurality of parallel water spraying pipes 22 are communicated with the water spraying main pipe 21, one water spraying pipe 22 corresponds to a groove of the condensation layer 2, and one end of the water spraying pipe 22, which is far away from the water spraying main pipe 21, extends into the corresponding groove of the condensation layer 2. In operation, seawater (the flow direction of the seawater is solid and thin arrow) flows into the condensation layer 2 through the water spraying main pipe 21, flows along the grooves through the water spraying pipe 22, overflows from the opposite side edges of the water spraying main pipe 21 when the seawater is full, and flows into the condensation layer 2 of the convection type-II evaporation-condensation unit 100 located below under the action of gravity.
In the present embodiment, the water spray header 21 provides a high pressure seawater after each operation for a predetermined period of time, the high pressure seawater has a fast flow rate, and the high pressure seawater is sprayed out from the water spray pipe 22 after flowing through the water spray header 21, so that the salt deposit on the upper surface of the condensation layer 2 in the condensation layer 2 can be washed, and at the same time, the salt scale on the lower side of the heating layer 1 can be washed away, and in addition, the water spray can clean the upper side of the heating layer 1 through the gap between the heat source pipes 11. Further, since the heating layer 1 composed of the plurality of heat source tubes 11 has a certain blocking effect on the high-pressure pulse water flow, the speed of the high-pressure pulse water flow is weakened, and the liquid level of the condensing layer 2 has a certain height from the air intake layer 3 of the convection-type II evaporative condensing unit 100 located above, the high-pressure pulse water flow is difficult to enter the air intake layer 3 of the convection-type II evaporative condensing unit 100 located above, so that the distilled water flowing into the air intake layer 3 is not salty on the condensing layer 2 of the convection-type II evaporative condensing unit 100 located above.
Further, the heating layer 1 is soaked in the liquid level of the condensation layer 2, that is, the top height of the heating layer 1 is lower than the liquid level of the condensation layer 2, so that high-efficiency heat exchange between the seawater in the condensation layer 2 and the hot water in the heat source tube 11 of the heating layer 1 is ensured, the temperature of the cold seawater flowing through the condensation layer 2 is increased under the heating action of the heating layer 1, the cold seawater is further heated and evaporated, a large amount of steam is generated, and the generated steam flows upwards and then flows into the convection-type II evaporation-condensation unit 100 positioned above.
The back of the air inlet layer 3 is provided with a plurality of air inlets 31, and the air inlets 31 on each back are distributed in a substantially straight line shape at the back. One side of the air inlet layer 3 is provided with a distilled water pipe 33, a plurality of parallel distilled water collecting pipes 32 are communicated with the distilled water pipe 33, one distilled water collecting pipe 32 corresponds to a groove of the air inlet layer 3, and one end of the distilled water collecting pipe 32 stretches into the corresponding groove of the air inlet layer 3. During operation, steam generated by the heating layer 1 of the convection type-II evaporation and condensation unit 100 located below continuously rises through the air inlet hole 31 of the convection type-II evaporation and condensation unit 100 located above and then contacts with the condensation layer 2, the steam is further cooled by cold seawater flowing through the condensation layer 2 to form distilled water, the distilled water can fall into the groove of the air inlet layer 3 along the lower side of the groove of the condensation layer 2, then the distilled water enters the distilled water collecting pipe 32 along the two ends of the groove of the air inlet layer 3, and finally the distilled water is collected into the distilled water pipe 33 through the distilled water collecting pipe 32 and flows out.
Further, the thickness of the plates of the condensation layer 2 and the air inlet layer 3 is 1.5-3mm, the interval between the condensation layer 2 and the air inlet layer 3 is 2-4mm, the heat transfer efficiency can be ensured, and the thickness of the whole convection type-II evaporation condensing unit is reduced. Meanwhile, the condensation layer 2 needs to accommodate a certain amount of seawater, and the heating layer 1 can be completely immersed in the seawater with a separation distance of 1.5-3mm from the condensation layer 2, and generally, the liquid level of the air inlet layer 3 of the convection-type II evaporation-condensation unit 100 located above and the liquid level of the condensation layer 2 of the convection-type II evaporation-condensation unit 100 located below are separated by 1.5-3mm. It will be appreciated that the width and length of the single convection type II vapor condensing unit 100 may be set according to practical needs, and the material may be glass or other materials.
When the water spraying device is used, seawater enters the condensation layer 2 of the convection type-II evaporation and condensation unit 100 on the top layer from the water spraying main pipe 21 on the top layer, meanwhile, the seawater can clean accumulated salt in the condensation layer 2, one part of the seawater is heated and evaporated by the heating layer 1, the other part of the seawater flows downwards into the condensation layer 2 of the convection type-II evaporation and condensation unit 100 positioned below in sequence under the action of gravity, and finally flows out from the water spraying main pipe 21 in the condensation layer 2 of the convection type-II evaporation and condensation unit 100 reaching the bottommost part. Meanwhile, hot water enters the heating layer 1 of the bottom convection type-II evaporation and condensation unit 100 from the heat source inlet pipe 12 at the bottom, after the cold seawater is heated, the hot water can flow upwards into the upper convection type-II evaporation and condensation unit 100 successively by the pump, finally enters the top convection type-II evaporation and condensation unit 100, and flows out from the heat source outlet pipe 13 at the top.
It will be appreciated that the seawater is heated by the heating layer 1 in each convection-type II evaporative condensing unit 100 as it flows down, and thus the seawater increases in layer by layer from the upper to the lower temperature; when the hot water flows upwards, the hot water transfers heat to the seawater in the heating layer 1, and therefore, the temperature of the hot water is lowered from bottom to top layer by layer. It will be appreciated that each of the convection-type II evaporative condensing units 100 increases in temperature from top to bottom in sequence, creating a significant gradient.
The convection type-II evaporation and condensation unit 100 is a structure formed by sequentially stacking a heating layer 1, a condensation layer 2 and an air intake layer 3 from top to bottom, and is mainly different from the convection type-I evaporation and condensation unit in that an evaporation layer and a heat insulation layer in the convection type-I evaporation and condensation unit are simplified.
The convection type-II evaporation condensing unit or the sea water desalting device provided by the invention has the advantages that after cold sea water enters the condensing layer 2, on one hand, heat is exchanged between the condensing layer 2 and steam to receive phase change latent heat of the steam converted into distilled water, and on the other hand, the phase change latent heat is heated by hot water in the heating layer 1.
While the foregoing is directed to the preferred embodiment of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. A convection type-II type evaporation condensing unit for a sea water desalination device is characterized in that: the sea water desalination device comprises a plurality of convection type-II type evaporation condensing units, a plurality of the convection type-II type evaporation condensing units are longitudinally stacked in a positive and negative way, the longitudinal positive and negative stacking means that the left side of the convection type-II type evaporation condensing units is an end A, the right side of the convection type-II type evaporation condensing units is an end B, the upper end and the lower end of the convection type-II type evaporation condensing units adjacent to the convection type-II type evaporation condensing units are positioned on the right side, the end B is positioned on the left side, the convection type-II type evaporation condensing units comprise a heating layer, a condensing layer and an air inlet layer, the heating layer, the condensing layer and the air inlet layer are sequentially stacked from top to bottom, the heating layer, the condensing layer and the air inlet layer are corrugated plate structures, the heating layer comprises a heat source tube, the heat source tube is provided with a plurality of heat source tubes, the heat source pipes are sequentially arranged along the direction of the grooves to form a corrugated plate structure together, the heating layer is used for supplying hot water to flow through, the condensing layer is used for supplying seawater to flow through, a water spraying main pipe is arranged on one side edge of the condensing layer, a plurality of parallel water spraying pipes are communicated on the water spraying main pipe, one water spraying pipe corresponds to one groove of the condensing layer, one end of each water spraying pipe far away from the water spraying main pipe stretches into the corresponding groove of the condensing layer, high-pressure seawater flows into the condensing layer through the water spraying main pipe and the water spraying pipe, so that salt deposited on the upper surface of the condensing layer in the condensing layer can be washed, salt scale on the lower side of the heating layer can be washed out, seawater overflows from the opposite side edge of the water spraying main pipe after being filled, the heating layer is soaked in the condensing layer, an air inlet hole is formed in the air inlet layer, the steam generated by the heating layer of the convection type-II evaporation and condensation unit located below rises through the air inlet hole of the air inlet layer of the convection type-II evaporation and condensation unit located above and adheres to the condensation layer, and water drops are formed on the lower side of the condensation layer.
2. A convection-type II evaporative condensing unit as set forth in claim 1 wherein: the undulation direction of the heating layer is perpendicular to the axial direction of the heat source tube.
3. A convection-type II evaporative condensing unit as set forth in claim 2 wherein: the heat source device comprises a heat source pipe and a heat source outlet pipe, wherein the heat source inlet pipe and the heat source outlet pipe are respectively arranged on two sides of the heat source pipe, the heat source outlet pipe is opposite to the heat source inlet pipe, the heat source inlet pipe is communicated with the heat source pipe, the heat source outlet pipe is communicated with the heat source pipe, the hot water flows in from the heat source inlet pipe, flows through the heat source pipe and flows out from the heat source outlet pipe.
4. A convection-type II evaporative condensing unit as set forth in claim 1 wherein: the air inlet holes on each ridge of the air inlet layer are multiple, and the multiple air inlet holes are distributed in a straight line at the ridge.
5. A convection-type II evaporative condensing unit as set forth in claim 4 wherein: one side of the air inlet layer is provided with a distilled water pipe, a plurality of parallel distilled water collecting pipes are communicated with the distilled water pipe, one distilled water collecting pipe corresponds to one groove of the air inlet layer, and one end of the distilled water collecting pipe stretches into the corresponding groove of the air inlet layer.
6. A convection-type II evaporative condensing unit as set forth in claim 1 wherein: the thickness of the condensing layer and the plate of the air inlet layer is 1.5-3mm, and the interval between the condensing layer and the air inlet layer is 2-4mm.
7. A seawater desalination plant, characterized by: the seawater desalination device comprises a convection type-II evaporative condensing unit as set forth in any one of claims 1-6, wherein a plurality of convection type-II evaporative condensing units are arranged in a vertically forward and reverse stacking manner, hot water flows upwards from the convection type-II evaporative condensing unit positioned below to the convection type-II evaporative condensing unit positioned above, and seawater flows downwards from the convection type-II evaporative condensing unit positioned above to the convection type-II evaporative condensing unit positioned below.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911017895.9A CN110606522B (en) | 2019-10-24 | 2019-10-24 | Convection type-II type evaporation condensing unit and sea water desalination device |
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| CN201911017895.9A CN110606522B (en) | 2019-10-24 | 2019-10-24 | Convection type-II type evaporation condensing unit and sea water desalination device |
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| CN108697941A (en) * | 2016-01-27 | 2018-10-23 | T.S.D.淡化有限公司 | Free-standing humidification-dehumidifying method for purifying water and system |
| CN106745424A (en) * | 2017-01-13 | 2017-05-31 | 辽宁石油化工大学 | Vacuum afterheat recovery type sea water desalinating unit |
| CN210973957U (en) * | 2019-10-24 | 2020-07-10 | 东华理工大学 | Convection type-II type evaporation and condensation unit and seawater desalination device |
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