CN104761014B - A kind of sea water desalinating unit - Google Patents
A kind of sea water desalinating unit Download PDFInfo
- Publication number
- CN104761014B CN104761014B CN201510129204.XA CN201510129204A CN104761014B CN 104761014 B CN104761014 B CN 104761014B CN 201510129204 A CN201510129204 A CN 201510129204A CN 104761014 B CN104761014 B CN 104761014B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- inclined plane
- exchanger plates
- strong brine
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
-
- 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
-
- 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
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- 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
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
Abstract
The invention discloses a kind of sea water desalinating unit, including pedestal, heat exchanger plates, solar energy incident glass, vacuum pump set and seawater inlet pipeline；Pedestal has an inclined plane；The edge of inclined plane sum protrudes susceptor edges；Solar energy incident glass be placed in inclined plane top and with susceptor edges encapsulation process so that form a confined space between inclined plane and solar energy incident glass；Heat exchanger plates is placed between solar energy incident glass and inclined plane；The lower end of heat exchanger plates and both sides realize encapsulation process with susceptor edges, and the upper end of heat exchanger plates is separated with fixed range mutually with susceptor edges；Inclined plane lower end offers bleeding point, and vacuum pump set connects bleeding point and extracts the air in confined space out；Seawater inlet pipeline is placed in the lower end of inclined plane, and connects and have multiple water-division pipeline, and the delivery port of water-division pipeline is towards on the upside of the lower end of heat exchanger plates.Use low-temp low-pressure boiling mode, utilize solar energy to realize desalinization, make water and become instinct to be reduced to less than 1 yuan/ton.
Description
Technical field
The present invention relates to field of sea water desalting technology, particularly relate to a kind of a kind of sea water desalinating unit carrying out low-pressure low-temperature boiling generation desalination distilled water with solar energy for resource.
Background technology
China is the country of a water resource critical shortage, and water resources ownership per capita is 2840 cubic metres, only the 1/4 of world average level.Water shortage coverage rate is almost throughout the whole nation at present, and especially northern area water shortage problem is quite serious, and water shortage has become puzzlement industrial enterprise and produced and a needs problems faced of development.
Desalinization is the effective technological means solving water shortage problem.Desalination technology refers to obtain seawater, by major part salt in removing seawater, makes the seawater after process reach a kind of water technology of life and industrial water standard.Existing desalination technology kind is a lot, but can reach commercial-scale and mainly be sent out and the way of distillation by counter-infiltration, and the most usually said " embrane method " and " hot method ", the way of distillation is divided into again multistage flash evaporation, multi-effect distilling and pressure steam distillation three kinds.
Hyperfiltration is with fastest developing speed over nearly 20 years in desalination technology, and the most large-scale, medium-sized or undersize item is all suitable for, and aquifer yield adjustable extent is wide；But hyperfiltration requires that water quality is the highest, water quality pre-processing device and medicament put into many, and cost is high, and cost of equipment maintenance is high.
Multistage flash evaporation holds pride of place in current world's desalinization total output, and technology maturation, security height, operation elasticity are big, are suitable for large-scale or ultra-large type project；Multi-effect distilling at 65 °-70 ° according to the height of operation temperature, top temperature, belongs to low temperature multiple-effect distillation, is current competitive hot method desalination technology；Pressure steam distillation refers to utilize electricity or steam to re-use after indirect steam carries out adiabatic compression, and energy consumption is relatively low, but scale is the most little, multidigit daily output kiloton.But the heat exchange efficiency of the above-mentioned way of distillation is the highest, and thermal source cost is high.
Generally, in distillation sea water desalting system, seawater concentration rate is 2 times, and in hyperfiltration seawater desalination system, seawater concentration rate is 1.4 times；According to water mixing in a day 1.5 ten thousand tons calculating, the cost of above-mentioned four kinds of desalinization schemes is as shown in following table one:
Table one
| Consume Project Cost (yuan/ton) | Counter-infiltration | Multi-effect distilling | Multistage flash evaporation | Pressure steam distillation |
| Chemicals consumes | 0.391 | 0.162 | 0.322 | 0.162 |
| Heating power consumes | 0 | 1.60 | 1.60 | 0.00 |
| Power consumption | 1.71 | 0.9 | 1.2 | 2.4 |
| Human cost | 0.04 | 0.053 | 0.053 | 0.053 |
| Maintenance expense | 0.23 | 1.03 | 0.46 | 0.572 |
| Administration fee is used | 0.008 | 0.01 | 0.011 | 0.011 |
| Equipment replacement expense | 0.923 | 0.00 | 0.00 | 0.00 |
| Depreciation of fixed assets expense | 0.97 | 1.37 | 1.46 | 1.827 |
| Make water cost | 4.272 | 5.125 | 5.105 | 5.025 |
As can be seen from Table I, above four kinds of desalination technologies make water cost all at about 5 yuan/ton, water cost per ton is higher, is unfavorable for industrialization promotion.
Summary of the invention
The invention provides a kind of sea water desalinating unit, solve the technical problem that in existing desalination technology, fresh water cost is high；Use solar energy, realize desalinization by low-temp low-pressure boiling mode, make water and become instinct to be reduced to less than 1 yuan/ton (without depreciation of fixed assets), be suitable for industrial application.
For solving above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of sea water desalinating unit is proposed, including pedestal, heat exchanger plates, solar energy incident glass, vacuum pump set and seawater inlet pipeline；Described pedestal has an inclined plane；The edge of described inclined plane sum protrudes susceptor edges；Described solar energy incident glass is placed in the top of described inclined plane, and with described susceptor edges encapsulation process so that form a confined space between described inclined plane and described solar energy incident glass；Described heat exchanger plates is placed between described solar energy incident glass and described inclined plane；And the lower end of described heat exchanger plates and both sides realize encapsulation process with described susceptor edges, the upper end of described heat exchanger plates is separated with fixed range mutually with described susceptor edges；Described inclined plane lower end offers bleeding point, and described vacuum pump set connects described bleeding point, for extracting the air in described confined space out；Described seawater inlet pipeline connects has multiple water-division pipeline, described seawater inlet pipeline to be placed in the lower end of described inclined plane so that the delivery port of the plurality of water-division pipeline is towards on the upside of the lower end of described heat exchanger plates.
Further, described device also includes fresh water draining pump and strong brine draining pump；The discharge outlet of described fresh water draining pump is connected to be opened in the fresh water outlet mouth of described inclined plane lower end；Described inclined plane upper end offers strong brine osculum, and described strong brine osculum connects the water inlet end being placed in the strong brine discharge pipe line on the downside of described heat exchanger plates, and the water side of described strong brine discharge pipe line connects the discharge outlet of described strong brine draining pump.
Further, described device also includes fresh water heat exchanger and strong brine heat exchanger；Described fresh water heat exchanger and described strong brine heat exchanger are placed in described seawater inlet pipeline；One end of described fresh water heat exchanger connects described fresh water outlet mouth, and the other end connects the discharge outlet of described fresh water draining pump；One end of described strong brine heat exchanger connects the water side of described strong brine discharge pipe line, and the other end connects the discharge outlet of described strong brine draining pump.
Further, described fresh water heat exchanger and described strong brine heat exchanger are plate type heat exchanger；Being provided with multiple rows of first passage and second channel in plate type heat exchanger, described first passage is mutually perpendicular to described second channel；One end of described first passage connects described fresh water and discharges the mouth of a river or the water side of described strong brine discharge pipe line, and the other end of described first passage connects discharge outlet or the discharge outlet of described strong brine drainage blanket of described fresh water draining pump；Described second channel is open circuit.
Further, described pedestal also has a platform, and described platform is connected to the upper end of described inclined plane；The position of the corresponding described platform of described heat exchanger plates is set to heat exchange platform, and described heat exchange platform is provided with baffle plate；Described strong brine osculum is opened on described heat exchange platform；Described heat exchange platform is separated with fixed range mutually with described susceptor edges.
Further, the upper end of described inclined plane or the outside of described platform are provided with reflecting glass；Described reflecting glass connects swing arm；Described swing arm connects a motor, and described motor drives described swing arm, and described swing arm drives described reflecting glass to rotate.
Further, described heat exchanger plates uses the waterproof gas impermeable material of high thermal conductivity coefficient of resistance to 1BAR pressure above to make；It is coated with blacking on the upside of described heat exchanger plates；It is coated with hydrophobic material on the downside of described heat exchanger plates.
Further, described heat exchanger plates has multiple heat conduction rib；The lower end of described heat conduction rib is against in described inclined plane, and upper end is against inside described solar energy incident glass.
Further, described first fixed range is less than described second fixed range.
Further, described inclined plane is provided with multiple trouble flow strip.
Compared with prior art, advantages of the present invention and good effect be: in the sea water desalinating unit that the present patent application proposes, air in the confined space that solar energy incident glass, inclined plane and susceptor edges are surrounded by vacuum pump set is extracted out, the air pressure in confined space is made to become negative pressure, on the one hand make seawater owing to pressure reduction is along the upside of seawater inlet pipeline inflow heat exchanger, on the other hand, owing to being negative pressure in confined space so that the boiling temperature of water reduces；Along with in confined space, negative pressure increases, seawater flows through heat exchanger plates from bottom to top, absorbs and pass through the solar energy of solar energy incident glass and temperature rises and hydraulic pressure decline in flow process, seethes with excitement after temperature rises to the boiling point of corresponding seawater pressure；A large amount of water vapours that boiling produces, the effect vacuumized by vacuum pump set, the space being separated by fixed range from the upper end of heat exchanger plates with susceptor edges enters on the downside of heat exchanger plates；Steam is affected by the charging seawater risen on the upside of heat exchanger plates and temperature reduces, then steam becomes water droplet at the downside exothermic condensation of heat exchanger plates, and the water droplet collecting condensation is desalination water；The heat distributed after water vapor condensation is delivered in the seawater of upside on the downside of heat exchanger plates, heats charging seawater further, accelerates the intensification of charging seawater, it is achieved that recycling of heat；Make sea water desalinating unit in fashion described above, negative pressure mode is used to reduce the boiling point of seawater, solar source is utilized to coordinate heat exchanger plates to simplify the vaporization of seawater, make use of recycling of heat simultaneously, desalting process is the most easily implemented, and aquifer yield is big, and whole device use only the equipment such as glass, heat exchanger plates and water pump, the cost of average water per ton is less than 1 yuan, it is achieved produce the technique effect of water low cost.
After reading in conjunction with the accompanying the detailed description of embodiment of the present invention, the other features and advantages of the invention will become clearer from.
Accompanying drawing explanation
Fig. 1 is the side view of the sea water desalinating unit that the embodiment of the present invention proposes；
Fig. 2 is the front view of the seawater inlet pipeline that the embodiment of the present invention proposes；
Fig. 3 is the front view of the sea water desalinating unit that the embodiment of the present invention proposes；
Fig. 4 is the rearview of the sea water desalinating unit that the embodiment of the present invention proposes；
Fig. 5 is the plate type heat exchanger structure chart that the embodiment of the present invention proposes；
Fig. 6 is the side view of the plate type heat exchanger that the embodiment of the present invention proposes；
Fig. 7 is a kind of panel radiator structure chart that the embodiment of the present invention proposes；
Fig. 8 is another panel radiator structure chart that the embodiment of the present invention proposes；
Fig. 9 is the side view of the sea water desalinating unit that the embodiment of the present invention proposes；
Figure 10 is the plate-type heat-exchange plate A-A face sectional view that the embodiment of the present invention proposes；
Figure 11 is film/cloth heat exchanger plates A-A face sectional view that the embodiment of the present invention proposes；
Figure 12 is the sea water desalinating unit top view that the embodiment of the present invention proposes；
Figure 13 is the seawater inlet pipeline scheme of installation that the embodiment of the present invention proposes；
Figure 14 is support bar and the trouble flow strip structure A-A face sectional view of embodiment of the present invention proposition.
Detailed description of the invention
The sea water desalinating unit that the present invention proposes is a low-temperature boiling tower, with solar energy as thermal source, it is the heat exchanger plates receiving solar energy with high thermal conductivity coefficient high pressure resistant vacuum-resistant material, guarantees that working environment is as low-pressure state with high pressure high transparent glass or lucite and concrete pedestal composition confined space.Rely on vacuum pump set, such as vavuum pump, charging seawater is drawn onto the top of low-temperature boiling tower, absorb solar temperature rising to about 60 ° simultaneously, reach seawater at 0.2BAR(1BAR=0.98665 standard atmospheric pressure) fluidizing point under pressure, make to feed seawater and evaporate generation steam in a large number, and the heat that steam distributes in condensation process is used to heat charging seawater further, accelerates the explosive evaporation of seawater；The steam of condensation is collected the seawater being desalination.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in more detail.
As it is shown in figure 1, the sea water desalinating unit that the embodiment of the present invention proposes includes pedestal 11, heat exchanger plates 12, solar energy incident glass 13, vacuum pump set 14 and seawater inlet pipeline 15；Pedestal 11 has an inclined plane 111, and the edge of this inclined plane protrudes susceptor edges, and solar energy incident glass 13 is placed in the top of inclined plane 111, and with susceptor edges encapsulation process so that form a confined space between inclined plane 111 and solar energy incident glass 13；Heat exchanger plates 12 is placed between solar energy incident glass 13 and inclined plane 111, keeps the first fixed range D1 with solar energy incident glass 13, keeps the second fixed range D2 with inclined plane；And the lower end of heat exchanger plates 12 and both sides realize encapsulation process with susceptor edges, the upper end of heat exchanger plates 12 is separated with fixed range mutually with susceptor edges；Inclined plane 111 lower end offers bleeding point 112, and vacuum pump set 14 connects bleeding point 112, for extracting the air in confined space out；It is the front view of seawater inlet pipeline 15 as shown in Figures 2 and 3, seawater inlet pipeline 15 includes multiple being connected water-division pipeline 151, water inlet 152 and delivery port 153(fresh water outlet mouth or strong brine delivery port with inlet pipeline main body), seawater inlet pipeline 15 is placed in the lower end of inclined plane 111 so that the delivery port of multiple water-division pipelines 151 is towards on the upside of the lower end of heat exchanger plates 12.
During work, run vacuum pump set 14, confined space is evacuated, negative pressure makes seawater be entered between heat exchanger plates 12 and solar energy incident glass 13 by the delivery port of multiple water-division pipelines 151 from the water inlet of seawater inlet pipeline 15, and along with the increase of negative pressure flows to the upper end of heat exchanger plates 12 from the lower end of heat exchanger plates 12；Solar energy incident glass 13 introduces sunshine, and heat exchanger plates 12 absorbs sunshine and heats up, thus the charging seawater that heating is flowed to the upper end of heat exchanger plates 12 from the lower end of heat exchanger plates 12, while charging seawater goes up, constant temperature raises；Owing to being evacuated in confined space, the boiling point making seawater reduces, when reaching boiling temperature when the temperature feeding seawater increases to about 60 °, charging boiling sea water produces a large amount of steam, continuous running because of vacuum pump set 14, steam is separated with the gap H1 of fixed range mutually from the space, upside of heat exchanger plates 12 by its upper end with susceptor edges, goes downwards to the lower side space of heat exchanger plates 12, and the downside exothermic condensation at heat exchanger plates becomes the globule and flows to the bottom of inclined plane；The globule collecting condensation is the seawater of desalination；Incoagulable gas is extracted out by vacuum pump set 14, and upside is passed in the heat release of condensed water from the downside of heat exchanger plates 12, charging seawater can play the effect of heating further, accelerate the explosive evaporation of charging seawater.
In the sea water desalinating unit that the invention described above embodiment proposes, air in the confined space that solar energy incident glass 13, inclined plane 111 and susceptor edges are surrounded by vacuum pump set 14 is extracted out, make confined space interior in negative pressure, negative pressure makes seawater owing to pressure reduction is along the space, upside of seawater inlet pipeline 15 inflow heat exchanger, further, the boiling point of the seawater in negative pressure makes confined space reduces；Along with in confined space, negative pressure increases, seawater flows through heat exchanger plates from bottom to top, flow process absorbs solar energy and temperature rise, seethe with excitement after rising to the boiling point reduced, the effect that a large amount of steam that boiling produces are vacuumized by vacuum pump set 14, be separated by the space of fixed range from heat exchanger plates 12 upper end and susceptor edges and enter into the lower side space of heat exchanger plates 12, fed that seawater is affected by rising and temperature declines on the upside of heat exchanger plates 12, then steam becomes water droplet at the downside exothermic condensation of heat exchanger plates 12；The heat distributed after water vapor condensation is delivered in the charging seawater of upside on the downside of heat exchanger plates 13, heats charging seawater further, accelerates the intensification of charging seawater, it is achieved that recycling of heat.
The sea water desalinating unit that the embodiment of the present invention proposes, negative pressure mode is used to reduce the boiling point of seawater, solar source is utilized to coordinate heat exchanger plates, simplify the vaporization flow process of seawater, it is simultaneously used recycling of heat, make desalting process the most easy to implement, aquifer yield is big, whole device have employed the basic equipments such as glass, heat exchanger plates and water pump, day power supply 3000KW can realize water yield per day more than 10000 tons, average water cost per ton, less than 1 yuan, produces the more existing sea water desalinating unit of water cost much lower.And each equipment used in device is all ripe common equipment, equipment dependability is high, and maintenance is convenient and maintenance cost is low.Owing to reducing the boiling point of seawater so that seawater is less scaling, can need not clear up for a long time, more need not charging seawater is carried out the measures such as pretreatment so that whole device is prone to build and applicable commercial introduction.
Shown in Fig. 1, Fig. 2 and Fig. 4, the sea water desalinating unit that the embodiment of the present invention proposes also includes fresh water draining pump 16 and strong brine draining pump 17；The discharge outlet of fresh water draining pump 16 connects the fresh water outlet mouth 113 being opened in inclined plane 111 lower end；As it is shown in figure 1, heat exchanger plates 12 upper end offers strong brine osculum 121, strong brine osculum 121 connects the water inlet end being placed in the strong brine discharge pipe line 18 on the downside of heat exchanger plates 12；Device rearview as shown in Figure 4, the water side of strong brine discharge pipe line 18 connects the strong brine delivery port 114 being opened in inclined plane 111 lower end, and strong brine draining pump 17 connects this strong brine delivery port 114.Both uses and is difficult to be made by the material of seawater corrosion.Use if many complete equipments connect, then fresh water is discharged and can be used a fresh water draining pump after being connected with pipeline by valve, in like manner can use a strong brine draining pump
Steam becomes water droplet at the downside exothermic condensation of heat exchanger plates 12, water droplet flows to the lower end of inclined plane 111 after collecting, discharge from the fresh water outlet mouth 113 of inclined plane 111 lower end, at fresh water outlet mouth 113 fresh water draining pump 16 is set and collection device collects these fresh water, it is the water resource after desalinization, is available for productive life and uses.After steam after boiling is collected as fresh water, remaining strong brine is flowed out by the strong brine osculum 121 of heat exchanger plates 12 upper end, and enter strong brine discharge pipe line 18, and finally to be extracted out by strong brine draining pump 17, the strong brine of extraction can be through the dehydration salt manufacturing of other operations or return sea.
As shown in Figure 3, Figure 4, the sea water desalinating unit that the embodiment of the present invention proposes also includes fresh water heat exchanger 19 and strong brine heat exchanger 20, is placed in seawater inlet pipeline 15；The material being difficult to by seawater corrosion and heat exchange efficiency are high is all used to make.Fresh water heat exchanger 19 one end connects fresh water outlet mouth 113, and the other end connects fresh water draining pump 16；One end of strong brine heat exchanger 20 connects strong brine delivery port 114, and the other end connects strong brine draining pump 17.Condensed fresh water still falls within high-temp liquid compared to charging seawater, owing to fresh water heat exchanger 19 is placed in seawater inlet pipeline 15, it is flooded with charging seawater about, fresh water dispels the heat after entering fresh water heat exchanger 19, its heat is fed Absorption by Sea Water, and fresh water temperature declines, and charging Absorption by Sea Water thermal temperature rises simultaneously, achieve fresh water heat again with, improve the heat exchange efficiency of whole device；In like manner, evaporate remaining strong brine and fall within high-temp liquid compared to charging seawater, owing to strong brine heat exchanger 20 is placed in seawater inlet pipeline 15, strong brine dispels the heat after entering strong brine heat exchanger 20, its heat is fed Absorption by Sea Water, and strong brine temperature declines, and charging Absorption by Sea Water thermal temperature rises simultaneously, achieve strong brine heat again with, improve the heat exchange efficiency of whole device.
As shown in Figure 5 and Figure 6, the embodiment of the present invention proposes fresh water heat exchanger 19 and strong brine heat exchanger 20 is plate type heat exchanger；This plate type heat exchanger includes that plate changes shell B2, plate swap-in water pipe B1, panel radiator B3 and plate and swaps out water pipe B4.Panel radiator B3 can use existing any one play the radiator of thermolysis, the present embodiment not limits；As shown in Figure 7, specific embodiment structure chart for a kind of plate type heat exchanger, this panel radiator B3 is formed by organizing the hollow inserted sheet B3-3 that equidistant parallel is installed side by side more, fresh water or strong brine enter in hollow inserted sheet B3-3, charging seawater is full of in the clearance space of hollow inserted sheet B3-3, realizes heat exchange with fresh water or the strong brine of high temperature.
Another kind of plate type heat exchanger as shown in Figure 8, is provided with multiple rows of first passage B3-1 and second channel B3-2 in plate type heat exchanger, and first passage B3-1 is mutually perpendicular to second channel B3-2；One end connecting plate swap-in water pipe B1 of first passage B3-1, plate swap-in water pipe B1 connects fresh water outlet mouth 113 or strong brine delivery port 114, the other end connecting plate of first passage B3-1 swaps out water pipe B4, and the plate water pipe B4 that swaps out connects fresh water draining pump 16 or strong brine draining pump 17；Second channel B3-2 is open circuit, and charging seawater can flow through this second channel.Fresh water or strong brine enter the first passage B3-1 of plate heat exchange radiator from plate swap-in water pipe B1 and flow through first passage B3-1 from top to bottom, and feed seawater and enter the second channel B3-2 of open circuit, flow to vertical with the flow direction of fresh water or strong brine so that charging seawater and freshwater or strong brine flow in adjacency channel and realize heat exchange.
As it is shown in figure 9, the sea water desalinating unit that the embodiment of the present invention proposes, having a platform 115 on the base 11, this platform 115 is connected to the upper end of inclined plane 111, for levelling bench or sloping platform；The position of the corresponding platform 115 of heat exchanger plates 12 is set to heat exchange platform 122, and this heat exchange platform 122 is provided with baffle plate 123；Strong brine osculum 121 is opened on this heat exchange platform 122；Heat exchange platform 122 is separated with fixed range mutually with susceptor edges so that present a gap H1 between heat exchange platform 122 and susceptor edges.After the charging seawater heated up rises to the upper end of heat exchanger plates 12, if temperature does not the most rise to the boiling temperature about 60 ° after reducing, then continue to be detained on heat exchange platform 122 to heat up until boiling temperature, baffle plate 123 stops that charging seawater may not flow into the lower side space of heat exchanger plates 12, steam after boiling enters into the space on the downside of heat exchanger plates 12 by the gap H1 between heat exchange platform 122 and susceptor edges, and is condensed into water droplet on the downside of heat exchanger plates 12.Heat exchange platform 122 and baffle plate 123 can increase boiling heat transfer area；Strong brine osculum 121 is opened on heat exchange platform 122, and after evaporation, remaining strong brine flows to strong brine discharge pipe line 18 from this strong brine osculum 121.This strong brine discharge pipe line 18 can use material identical with heat exchanger plates 12 to surround in the downside of heat exchanger plates 12, strong brine draining pump 17 is connected after extending to inclined plane 111 lower end, the strong brine of high temperature is along strong brine discharge pipe line 18, namely flow in the downside of heat exchanger plates 12, heat is delivered to the charging seawater on the upside of heat exchanger plates 12 through heat exchanger plates 12.
The sea water desalinating unit that the invention described above embodiment proposes, using low pressure to reduce the mode of seawater boiling point, use solar energy to heating of seawater, after ocean temperature rises to the boiling temperature reduced, boiling produces a large amount of steam, collect steam and obtain productive life fresh water, whole device simple structure, uses equipment few, and many places employ heat recycling, improve device heat exchange efficiency, make whole apparatus cost low, produce water low cost, be suitable for commercial introduction application.
The sea water desalinating unit proposed the present invention with a specific embodiment below is described in detail.
As it is shown in figure 9, in this specific embodiment, sea water desalinating unit is a solar low-temperature boiling tower, and height is between 7 meters to 15 meters, and pedestal 11 height is 8 meters, and the angle of inclination of inclined plane 111 is between 30 ° to 90 °, and platform 115 width is 1-5 rice；The length of inclined plane 111 and platform 115 is unrestricted；Susceptor edges height is 30-50cm；For preventing boiling seawater from spilling into the lower side space of heat exchanger plates 12, the susceptor edges height of heat exchange of top part platform 122 is set to 80-100cm.Heat exchanger plates 12 uses the high thermal conductivity coefficient heat exchanger plates of pressure waterproof airtight anticorrosive wear-resistant.Pedestal 11 uses concrete for making, heat exchanger plates 12 all seals with pedestal 11 lower end and both sides, outside heat exchange platform 122, it is provided with baffle plate 124, between baffle plate 123 and susceptor edges, has gap H1, facilitate the steam produced on heat exchanger plates to reach to condense on the downside of heat exchanger plates by interval.Covering the high pressure lucite of high light transmittance on heat exchanger plates 12, lucite and susceptor edges seal fixing, form a confined space between lucite and pedestal；A vavuum pump 14 is installed in pedestal 11 bottom, and vavuum pump 14 connects the bleeding point 112 offered in inclined plane 111；As shown in Figures 2 and 3, for the impact preventing height of water level from this device being worked, in inclined plane 111 lower end, seawater inlet pipeline 15 and distributive pipe water inlet are set, there is on seawater inlet pipeline 15 multiple distributive pipe 151, distributive pipe 151 is each passed through distributive pipe water inlet, making on the upside of the lower end of delivery port alignment heat exchanger plates 12 of distributive pipe 151, seawater inlet pipeline 15 and distributive pipe water inlet are submerged in charging seawater.
Concrete, heat exchanger plates 12 is placed between lucite 13 and inclined plane 111, and the first distance D1 between lucite is less than the second distance D2 between inclined plane.
Air in confined space is extracted out by vavuum pump 114, negative pressure is presented in making confined space, negative pressure makes to feed seawater and enters seawater inlet pipeline 15 from the water inlet 152 of seawater inlet pipeline 15, and enter the space on the upside of heat exchanger plates 12 and between lucite by distributive pipe 151 respectively, uphill process absorbs too can and heat up, after being warmed up to the boiling point after reducing, boiling produces a large amount of steam, steam climbs over heat exchanger plates 12 and arrives heat is passed back on the upside of heat exchanger plates on the downside of heat exchanger plates to realize heat recycling, and self condensation becomes water droplet.The remaining steam for condensation is extracted out by vavuum pump 114 with incoagulable gas.Condensing drip is the seawater of desalination after collecting.
Lucite employing mono-/bis-layer (vacuum/hollow) glass, uses high light transmittance heat insulation and tolerates the lucite more than 1BAR pressure, can whole or splicing installation.Glass surface can attach anti-reflection material, to realize the purpose of absorption maximum solar energy.
Heat exchanger plates material is the waterproof gas impermeable material of high thermal conductivity coefficient of resistance to 1BAR pressure above, can be board-like, it is possible to for coating film type.Material can be Copper Foil, carbon fiber, stainless steel, aluminium carbide ceramic-like etc..As shown in Figure 10, for the sectional view of A-A of heat exchanger plates material shown in Fig. 9；The enhancing heat exchange rib 124 of some enhancing heat exchange is increased on plate/cloth/film.The support heat exchange rib 125 of extension supporting effect on plate-type heat-exchange plate, lower end is against in inclined plane 111 support heat exchanger plates 12, and upper end supports lucite (solar energy incident glass).Using the coatings such as blacking/paint on the upside of heat exchanger plates 12, increase solar energy receptivity, prevent reflection, downside can use hydrophobic material to coat, and makes the condensed water of generation drip in time.
In Figure 10, charging seawater flows into charging seawater water channel 127 from the delivery port of distributive pipe 151, and the steam after boiling climbs over heat exchanger plates 12 and realizes heat exchange to the condensed water condensing zone 128 of downside and condense.
Enhancing heat exchange rib 124 is set on cloth/membrane type heat exchanger plates and supports heat exchange rib 125 as shown in figure 11, such as when using carbon cloth, in inclined plane 111, some support heat exchange ribs 125 are averagely set by interval, support in each two and between heat exchange rib 125, present arc, strengthen between the support heat exchange rib 125 at the back side that heat exchange rib 124 is arranged on carbon cloth；Forming charging seawater water channel 127 between carbon cloth and solar energy incident glass, it is achieved charging seawater flows into, the steam after boiling climbs over heat exchanger plates 12 and realizes heat exchange to the condensed water condensing zone 128 of downside and condense.
As shown in figure 12, heat exchanger plates 12 top arranges heat exchange platform 122, and heat exchange platform 122 arranges deflector 126, and deflector 126 makes boiled water uniformly proceed to forward position, arranges higher baffle plate 124 together and prevent current from overflowing at forward position.Heat exchange platform 122 and baffle plate 123 increase boiling heat transfer area, and heat exchange platform 122 can be horizontal or tilting.Strong brine osculum 121 is offered on heat exchange platform 122, use identical material that strong brine osculum 121 surrounds a strong brine discharge pipe line 18 on the downside of heat exchanger plates 12, extend to inclined plane 111 lower end, after remaining boiled water (strong brine) is blocked by baffle plate 123, flow out from strong brine osculum 121, flow on the downside of heat exchanger plates 12 through strong brine discharge pipe line 18, in flow process, heat is delivered to the charging seawater on the upside of heat exchanger plates 12 through heat exchanger plates 12.
Pedestal 11 and inclined plane 115 use concrete or other materials system, top to be horizontal plane or low dip face, and inclined plane 111 and tip platform 115 surrounding arrange boss, and boss has two planes, and medial plane is higher than inner side plane.Medial plane uses for fixing solar energy incident glass 13, and inner side plane uses for fixing heat exchanger plates 12.Inclined plane 115 carries out water-impervious process and air tight process.Opening bleeding point 112 below inclined plane 115 to connect vavuum pump 114 and use, as shown in figure 13, arrange twice boss F1 and F2, nexine boss F2 and use for fixing heat exchanger plates 12 bottom inclined plane 115, outer layer boss F1 uses for fixing solar energy incident glass 13.Several holes offered by twice boss, and multiple distributive pipes 151 of seawater inlet pipeline 15 are through outer layer boss hole, and nexine boss F2 uses pipeline to connect the plate type heat exchanger 19 or 20 in seawater inlet pipeline 15 by distributive pipe 151.
As shown in figure 14, extension supporting bar 117 and trouble flow strip 116 in the inclined plane 111 of pedestal 11, support bar 117 supports heat exchanger plates 12 and prevents heat exchanger plates from subsiding, and trouble flow strip 116 strengthens heat exchange for interference steam streamline and uses.
Distributive pipe 151 has multiple, is connected to side by side on seawater inlet pipeline 15.Seawater inlet pipeline 15 cannot normally work for preventing height of water level difference from causing, and its two ends are offered water inlet 152 and deeply fed in seawater, makes device work not affected by water level.
Here plate type heat exchanger can use flat board or corrugation (ripple/broken line) formula heat exchange structure.
Here vavuum pump uses water ring pump, lobe pump or water ring Roots's unit or other form vavuum pumps.
As shown in Figure 9, on the top of pedestal 11, reflecting glass 21 is installed, this reflecting glass 21 is high-strength armoured-glass, on safety glass, the back side is minute surface, can be to strengthen heat exchange on reflected sunlight to heat exchanger plates 12, the safety glass back side connects swing arm, and swing arm connects motor, motor can drive swing arm to rotate, and swing arm drives safety glass to rotate；Safety glass back side paste heat-preserving material.When incidence on daytime in summer sunshine is bigger, safety glass is forwarded to vertical position by motor, and heat exchanger plates 12 receives solar energy, evening, motor drove swing arm, drive safety glass to cover in solar energy incident glass 13, rely on the insulation material on safety glass heat insulation, increase device and produce the water time.Winter, angle of incidence of sunlight degree was less, and for preventing safety glass from the low-temperature boiling tower of heel row is produced impact, safety glass forwards bottom to, forwards to evening in incident glass heat insulation.
It should be noted that; described above is not limitation of the present invention; the present invention is also not limited to the example above, change that those skilled in the art are made in the essential scope of the present invention, retrofits, adds or replaces, and also should belong to protection scope of the present invention.
Claims (10)
1. a sea water desalinating unit, it is characterised in that include pedestal, heat exchanger plates, solar energy incident glass, vacuum pump set and seawater inlet pipeline；Described pedestal has an inclined plane；The edge of described inclined plane protrudes susceptor edges；Described solar energy incident glass is placed in the top of described inclined plane, and with described susceptor edges encapsulation process so that form a confined space between described inclined plane and described solar energy incident glass；Described heat exchanger plates is placed between described solar energy incident glass and described inclined plane；And the lower end of described heat exchanger plates and both sides realize encapsulation process with described susceptor edges, the upper end of described heat exchanger plates is separated with fixed range mutually with described susceptor edges；Described inclined plane lower end offers bleeding point, and described vacuum pump set connects described bleeding point, for extracting the air in described confined space out；Described seawater inlet pipeline connects has multiple water-division pipeline, described seawater inlet pipeline to be placed in the lower end of described inclined plane so that the delivery port of the plurality of water-division pipeline is towards on the upside of the lower end of described heat exchanger plates.
Sea water desalinating unit the most according to claim 1, it is characterised in that described device also includes fresh water draining pump and strong brine draining pump；The discharge outlet of described fresh water draining pump is connected to be opened in the fresh water outlet mouth of described inclined plane lower end；Described inclined plane upper end offers strong brine osculum, and described strong brine osculum connects the water inlet end being placed in the strong brine discharge pipe line on the downside of described heat exchanger plates, and the water side of described strong brine discharge pipe line connects the discharge outlet of described strong brine draining pump.
Sea water desalinating unit the most according to claim 2, it is characterised in that described device also includes fresh water heat exchanger and strong brine heat exchanger；Described fresh water heat exchanger and described strong brine heat exchanger are placed in described seawater inlet pipeline；One end of described fresh water heat exchanger connects described fresh water outlet mouth, and the other end connects the discharge outlet of described fresh water draining pump；One end of described strong brine heat exchanger connects the water side of described strong brine discharge pipe line, and the other end connects the discharge outlet of described strong brine draining pump.
Sea water desalinating unit the most according to claim 3, it is characterised in that described fresh water heat exchanger and described strong brine heat exchanger are plate type heat exchanger；Being provided with multiple rows of first passage and second channel in plate type heat exchanger, described first passage is mutually perpendicular to described second channel；One end of described first passage connects described fresh water outlet mouth or the water side of described strong brine discharge pipe line, and the other end of described first passage connects discharge outlet or the discharge outlet of described strong brine draining pump of described fresh water draining pump；Described second channel is open circuit.
Sea water desalinating unit the most according to claim 2, it is characterised in that described pedestal also has a platform, described platform is connected to the upper end of described inclined plane；The position of the corresponding described platform of described heat exchanger plates is set to heat exchange platform, and described heat exchange platform is provided with baffle plate；Described strong brine osculum is opened on described heat exchange platform；Described heat exchange platform is separated with fixed range mutually with described susceptor edges.
Sea water desalinating unit the most according to claim 5, it is characterised in that the upper end of described inclined plane or the outside of described platform are provided with reflecting glass；Described reflecting glass connects swing arm；Described swing arm connects a motor, and described motor drives described swing arm, and described swing arm drives described reflecting glass to rotate.
Sea water desalinating unit the most according to claim 1, it is characterised in that described heat exchanger plates uses the waterproof gas impermeable material of high thermal conductivity coefficient of resistance to 1BAR pressure above to make；It is coated with blacking on the upside of described heat exchanger plates；It is coated with hydrophobic material on the downside of described heat exchanger plates.
Sea water desalinating unit the most according to claim 1, it is characterised in that there is on described heat exchanger plates multiple heat conduction rib；The lower end of described heat conduction rib is against in described inclined plane, and upper end is against inside described solar energy incident glass.
Sea water desalinating unit the most according to claim 1, it is characterised in that the first fixed range between described heat exchanger plates and described solar energy incident glass is less than the second fixed range between described heat exchanger plates and described inclined plane.
Sea water desalinating unit the most according to claim 1, it is characterised in that be provided with multiple trouble flow strip in described inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129204.XA CN104761014B (en) | 2015-03-24 | 2015-03-24 | A kind of sea water desalinating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129204.XA CN104761014B (en) | 2015-03-24 | 2015-03-24 | A kind of sea water desalinating unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104761014A CN104761014A (en) | 2015-07-08 |
| CN104761014B true CN104761014B (en) | 2016-09-07 |
Family
ID=53643181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510129204.XA Expired - Fee Related CN104761014B (en) | 2015-03-24 | 2015-03-24 | A kind of sea water desalinating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104761014B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201906Y (en) * | 2008-03-05 | 2009-03-04 | 孙元新 | Vacuum glass thermal-collecting tube type solar distilling seawater desalination purifier |
| CN101880069A (en) * | 2010-01-18 | 2010-11-10 | 王鹤立 | Negative pressure strengthened multi-stage laminated disc type solar energy distillation system for desalination |
| CN103906710A (en) * | 2011-09-20 | 2014-07-02 | 沙特阿拉伯石油公司 | Apparatus for distillation of water and methods for using same |
| GB2511075A (en) * | 2013-02-22 | 2014-08-27 | Donald Earl Spence | Desalination Apparatus |
-
2015
- 2015-03-24 CN CN201510129204.XA patent/CN104761014B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201906Y (en) * | 2008-03-05 | 2009-03-04 | 孙元新 | Vacuum glass thermal-collecting tube type solar distilling seawater desalination purifier |
| CN101880069A (en) * | 2010-01-18 | 2010-11-10 | 王鹤立 | Negative pressure strengthened multi-stage laminated disc type solar energy distillation system for desalination |
| CN103906710A (en) * | 2011-09-20 | 2014-07-02 | 沙特阿拉伯石油公司 | Apparatus for distillation of water and methods for using same |
| GB2511075A (en) * | 2013-02-22 | 2014-08-27 | Donald Earl Spence | Desalination Apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104761014A (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201678475U (en) | Solar seawater desalination device | |
| CN103708573B (en) | A kind of strengthening convective heat exchange formula solar distilling seawater desalinating device | |
| CN102583611B (en) | Horizontal tube falling film evaporation solar seawater desalination device | |
| Howe et al. | Twenty years of work on solar distillation at the University of California | |
| CN104591327B (en) | Loop heat pipe formula cylinder type solar energy sea water desalination apparatus | |
| CN108793299A (en) | A kind of small-sized solar energy sea water desalination apparatus and method | |
| CN109911965A (en) | A kind of disc type solar energy distillation pond that low cost is expansible and application method | |
| CN108423732A (en) | A kind of solar seawater desalination and pollutant removal dual function apparatus | |
| CN105253938B (en) | A kind of solar energy sea water desalination apparatus | |
| CN103964525B (en) | Sea-level floating type solar energy desalting kit | |
| CN110407276A (en) | Co-generation saline-water reclamation system based on butterfly solar thermal collector | |
| CN106986405A (en) | A kind of ship sea water desalinating unit | |
| CN104761014B (en) | A kind of sea water desalinating unit | |
| CN204981215U (en) | Solar thin film waste water evaporative concentration device | |
| CN204675941U (en) | A kind of equipment of microwave purifying process heavy metal ion-containing waste water | |
| CN105753084A (en) | Photo-thermal seawater distillation and desalination device | |
| CN110563234B (en) | Low-energy-consumption seawater desalination system and method | |
| CN105836831B (en) | Solar energy film waste water evaporation concentration device | |
| CN109437355A (en) | A kind of plate-type solar distilling apparatus | |
| CN1275866C (en) | Energy saving type solar sea water desalination device | |
| CN111847556B (en) | Solar distillation unit and distillation method | |
| CN212559534U (en) | Solar energy water injection seawater desalination system | |
| CN212387762U (en) | Disc-type spray solar humidifying-dehumidifying type brackish water desalting device | |
| CN109502868B (en) | Control method for sewage treatment with three-in-one structure | |
| CN208916849U (en) | A kind of small-sized solar energy sea water desalination apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170324 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |