CN108298624B - A kind of intelligent control solar seawater desalination system of constant level - Google Patents
A kind of intelligent control solar seawater desalination system of constant level Download PDFInfo
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- CN108298624B CN108298624B CN201710817485.7A CN201710817485A CN108298624B CN 108298624 B CN108298624 B CN 108298624B CN 201710817485 A CN201710817485 A CN 201710817485A CN 108298624 B CN108298624 B CN 108298624B
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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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/83—Other shapes
- F24S2023/832—Other shapes curved
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- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The present invention provides a kind of solar seawater desalination systems of the intelligent control of constant level, the system comprises heat collector, water tank and its desalination plants, pass through piping connection between the water tank and desalination plant, entrance tube valve is respectively set on the inlet tube and outlet of water tank and exports tube valve, the entrance tube valve and outlet tube valve and central controller data connection;Water-level gauge, the water-level gauge and central controller data connection are set in the water tank.The height of central controller level monitoring is to control entrance tube valve and export the size of the aperture of tube valve.The present invention provides a kind of seawater desalination system of new intelligent control, can keep the constant of cistern water level, guarantees that the temperature of water outlet is uniform, to improve the desalination efficiency of seawater desalination system.
Description
Technical field
The invention belongs to field of solar energy more particularly to a kind of solar energy collector systems.
Background technique
With the rapid development of modern social economy, the mankind are increasing to the demand of the energy.However coal, petroleum, day
The traditional energies storage levels such as right gas constantly reduce, are increasingly in short supply, cause rising steadily for price, while conventional fossil fuel causes
Problem of environmental pollution it is also further serious, these all limit the development of society and the raising of human life quality significantly.The sun
Can thermal transition be that a kind of energy conversion efficiency and utilization rate are high and low in cost, the solar energy that can be widely popularized in the whole society is sharp
Use mode.In solar energy heat utilization device, it is important to solar radiant energy are converted into thermal energy, realize the device of this conversion
Referred to as solar thermal collector.But current solar thermal collector is all circular tube structure, will lead to solar heat in some cases
Amount is unable to fully absorb.
Summary of the invention
The present invention is intended to provide a kind of energy-saving and environment-friendly solar energy system and the seawater desalination system including solar energy system,
Improve the ability to work of solar seawater desalination.
To achieve the goals above, technical scheme is as follows: a kind of auxiliary heating solar system, the system
Including the system comprises heat collector and its heat utilization devices, by piping connection between the heat collector and heat utilization device,
Heat collector absorbs solar energy, heats the water in heat collector, and the water after heating enters heat utilization device by outlet pipeline, in hot benefit
The water to exchange heat, which is characterized in that in heat utilization device pipeline is entered back into heat collector with the water that device flows out is entering heat
Assisted heating device is flowed through using advancing into for device.
Preferably, the ancillary heating equipment opens automatically according to the temperature for flowing through the water in assisted heating device of detection
Dynamic heating.
Preferably, the heat utilization device is desalination plant.
Preferably, the heat collector includes thermal-collecting tube, reflecting mirror and collecting plate, pass through between two adjacent thermal-collecting tubes
Collecting plate connection, to make to form tube plate structure between multiple thermal-collecting tubes and adjacent collecting plate;The heat collector includes two pieces
Tube plate structure, shape is at a certain angle between two pieces of tube plate structures, the circular arc cable architecture in the angle direction and reflecting mirror
Curved direction is opposite, and the focus of reflecting mirror is located between the angle of tube plate structure formation, and the cross section of the thermal-collecting tube is
Rectangle, the collecting plate connect rectangular angle.
Preferably, the cross section of the thermal-collecting tube is square.
Preferably, inner fin is arranged inside the thermal-collecting tube, the inner fin connection is rectangular diagonal, the interior wing
Piece will be divided into multiple passage aisles inside thermal-collecting tube, intercommunicating pore is arranged on inner fin, so that adjacent passage aisle be made to communicate with each other;
The a length of L of inner edge of the square, the radius r of the intercommunicating pore, on the same fin adjacent intercommunicating pore it
Between distance be l, meet following relationship:
L/L*10=a*ln (r/L*10)+b;
Wherein ln is logarithmic function, and a, b are parameter, 1.5 < a < 1.6,2.9 <b < 3.0;
0.34<l/L<0.38;
0.14<r/L<0.17;
30mm<L<120mm;
5mm<r<17mm。
Preferably, the desalination plant includes vaporization chamber, liquid distributor is set in vaporization chamber, wherein solar energy collection
The hot water of hot device heating enters vaporization chamber, in vaporization chamber after the heat exchange of the seawater spraying of liquid distributor, enters back into plate-type heat-exchange
Seawater in device, with plate heat exchanger exchanges heat, and is then recycled back into heat collector and is heated, the plate heat exchanger
Seawater after middle heat exchange enters the indoor liquid distributor of evaporation.
Preferably, heat collector recirculated water is stored in cyclic water tank, the cyclic water tank setting in plate heat exchanger and
Between heat collector.
Compared with prior art, solar water appliance of the present invention has the advantages that as follows:
1) it the present invention provides a kind of solar energy system of auxiliary heating, can be replenished in time in solar energy deficiency situation
Solar absorption.
2) a kind of square tube thermal-collecting tube solar thermal collector of Novel structure is provided, it can be to avoid the thermal-arrest of round tube heat collector
Blind spot improves body sun energy heat absorption efficiency.
3) by opening up intercommunicating pore inside thermal-collecting tube, while guaranteeing to improve heat exchange efficiency, reduce in thermal-collecting tube
Flow resistance.
4) by the rule variation of the area of the through-hole in thermal-collecting tube, the Heat-collecting effect and flow resistance being optimal.
5) present invention is obtained by test of many times in the case where guaranteeing that heat exchange amount is maximum and flow resistance is met the requirements
The solar thermal collector optimum results optimal to one, and by being verified, to demonstrate the accurate of result
Property.
6) the invention proposes a kind of new-type solar seawater desalination system and device, sea water desalination rate is improved.
Detailed description of the invention
Fig. 1 is the schematic diagram of Solar Energy Heat Utilization System of the present invention;
Fig. 2 is the structural schematic diagram of solar thermal collector of the present invention;
Fig. 3 is thermal-collecting tube cross-sectional structure schematic diagram of the present invention;
Fig. 4 is inner fin intercommunicating pore distribution schematic diagram of the present invention;
Fig. 5 is inner fin intercommunicating pore stagger arrangement distribution schematic diagram of the present invention;
Fig. 6 is square dimensions schematic diagram in thermal-collecting tube of the present invention;
Fig. 7 is solar heat-preservation and sea water desalination parallel system flow diagram;
Fig. 8 is the schematic diagram of solar seawater desalination control system;
Fig. 9 is desalination plant system schematic;
Figure 10 is rectangular tube and round tube contrast schematic diagram.
Appended drawing reference is as follows:
1, solar thermal collector, 2, external auxiliary heating, 3, water circulating pump, 4, cyclic water tank, 5, circulating cooling make-up water pump, 6,
Plate heat exchanger, 7, shower tray, 8, level-one vaporization chamber, 9, dual evaporation room, 10, three-level vaporization chamber, 11, fresh-water tank, 12, fresh water
Draining pump, 13, concentrated seawater case, 14, concentrated seawater draining pump, 15, seawater preheating heat exchanger, 16, seawater intake pump, 17, reflecting mirror,
18, thermal-collecting tube, 19, collecting plate, 20, header, 21, header, 22, heat collector water inlet pipe, 23, heat collector outlet, heat utilization dress
It sets, 24, inner fin, 25, intercommunicating pore, 26, passage aisle, 27, storage heater, 28, desalination plant, 29, valve, 30, valve,
31, temperature sensor, 32, accumulator inlet pipe, 33, outlet pipeline, 34, water return pipeline, 35, water return pipeline, 36, valve, 37,
Temperature sensor, 38, water tank, 39, outlet, 40, inlet tube, 41, temperature sensor, 42, outlet tube valve, 43, inlet tube
Valve, 44, central controller, 45, valve, 46, valve.
Specific embodiment
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.
Fig. 1 illustrates a kind of solar energy collector system, and the system comprises heat collector 1 and its heat utilization device 24, institutes
It states and passes through piping connection between heat collector 1 and heat utilization device 24.
The collector structure is as shown in Fig. 2, include thermal-collecting tube 18, reflecting mirror 17 and collecting plate 19, two adjacent collection
It is connected between heat pipe 18 by collecting plate 19, to make to form tube sheet knot between multiple thermal-collecting tubes 18 and adjacent collecting plate 19
Structure;The solar energy collector system includes two pieces of tube plate structures, and shape is at a certain angle between two pieces of tube plate structures, institute
State that angle direction is opposite with the direction of circular arc line structural bending of reflecting mirror, the focus D of reflecting mirror 17 is formed positioned at tube plate structure
Angle between.
It is improved as one, the cross section of the thermal-collecting tube 18 is rectangle, and the collecting plate 19 connects rectangle
Angle.
The prior art is generally used circular tube structure, but discovery uses circular tube structure in practice, for two round tubes
Between distance it is closer when, because of the distance between two close circular arcs very little, so that two adjacent parts of round tube can not
Solar energy is fully absorbed, as described in Figure 10, if may from lower part or top irradiation or reflection, dash area therein
It is unable to get illumination, locally heat absorption is uneven to cause thermal-collecting tube, be easy to cause the damage of thermal-collecting tube.And the present invention is by setting
The shortcomings that setting thermal-collecting tube cross section is rhs-structure, overcomes circular tube structure, so that having between adjacent thermal-collecting tube 18 opposite
The more space for round tube is irradiated from upper and lower part, solar energy is reflected into, so that it is equal to reach heat absorption
It is even, it is reflected from other angles, for round tube, can also achieve the purpose that absorb more heats.
Preferably, the cross section of the thermal-collecting tube 18 is square.
Traditional heat collector is all that thermal-collecting tube is set up directly in focus, once position shifts, then heat is not just
For meeting thermal-arrest into thermal-collecting tube, by above structure, sunlight is radiated at reflecting mirror 17, is reflected into tube sheet knot by reflecting mirror 17
Structure, by heat thermal-arrest in the thermal-collecting tube 18 into tube plate structure.By this structure, even if because installation or operation problem are led
Cause tube plate structure position change, then solar energy still can thermal-arrest into thermal-collecting tube 18, to avoid thermal loss;While because
All it is that thermal-collecting tube is set up directly in focus for traditional heat collector, causes thermal-collecting tube hot-spot, causes thermal-collecting tube local
Lose excessive, the service life is too short, or even causes thermal-collecting tube over-heat inside, generates superheated steam, is full of entire thermal-collecting tube, causes thermal-arrest
Pipe internal pressure is excessive, damages thermal-collecting tube, and takes the structure of the application, not only can adequately absorb heat, but also can incite somebody to action
The opposite dispersion of heat, avoids heat from excessively concentrating, so that whole thermal-collecting tube heat absorption is uniformly, extends the service life of thermal-collecting tube.
Preferably as one, the focus D of reflecting mirror 17 is located on the midpoint of two pieces of tube plate structure least significant end lines.By upper
State setting, it is ensured that absorb solar energy to the full extent, solar energy is avoided to lose because of focal shift, also ensure simultaneously
Plate structure is likely to reduced sunlight of the irradiation blocked on reflecting mirror 17 as far as possible.It is experimentally confirmed, using the above structure, too
The absorbent effect of sun is best.
Preferably, the cross-sectional area of thermal-collecting tube is not identical.Along the middle part (i.e. extreme higher position) of tube plate structure to both sides
On extreme lower position (i.e. Fig. 2 thermal-collecting tube A to the direction B, C) extending direction, the cross-sectional area of thermal-collecting tube is increasing.It sends out in an experiment
It is existing, extend from middle part to two sides, caloric receptivity gradually rises, and by analyzing main cause is led because there is the blocking of tube plate structure
It is heated minimum to cause middle part, and extends from middle part to both sides, absorbs heat and gradually rises.Pass through the continuous change of thermal-collecting tube cross-sectional area
Greatly, the water flow of lower part can be increased, being heated evenly for water in entire thermal-collecting tube can be made, avoid two sides temperature excessively high and in
Between temperature it is too low.It can also be easily damaged at high temperature, can keep entire to avoid the material of intermediate thermal-collecting tube in this way
The temperature of thermal-collecting tube is uniform, prolongs the service life.
Preferably, along tube plate structure middle part (i.e. extreme higher position) to both sides extreme lower position (i.e. Fig. 2 thermal-collecting tube A to
B, the direction C) on extending direction, the increased amplitude of thermal-collecting tube cross-sectional area gradually becomes smaller.It finds in an experiment, for heat absorption
Amount, along the middle part (i.e. extreme higher position) of tube plate structure to the extension side both sides extreme lower position (i.e. Fig. 2 thermal-collecting tube A to the direction B, C)
Upward amplification is gradually successively decreased, therefore caliber has been done such variation, to meet corresponding require.
Preferably, the ratio of maximum cross-sectional area and the smallest cross-sectional area is less than 1.22.
Preferably, setting is for the convex of augmentation of heat transfer on the lower wall surface (face opposite with reflecting mirror 17) of tube plate structure
It rises, to reinforce the absorption to solar energy.Along tube plate structure middle part (i.e. extreme higher position) to both sides extreme lower position (i.e. Fig. 2 collection
Heat pipe A is to the direction B, C) on extending direction, the height of projection of the lower wall surface of thermal-collecting tube 18 is higher and higher.It finds in an experiment, from
Middle part extends to two sides, and caloric receptivity gradually rises, and is to lead to middle part because there is the blocking of tube plate structure by analyzing main cause
It is heated minimum, and extend from middle part to both sides, it absorbs heat and gradually rises.By the continuous raising of height of projection, can make
In entire thermal-collecting tube 18 water be heated evenly, avoid that two sides temperature is excessively high and medium temperature is too low.It in this way can also be to avoid in
Between the material of thermal-collecting tube be easily damaged at high temperature, the temperature of entire thermal-collecting tube can be kept uniform, extend and use the longevity
Life.
Preferably, along the link position (i.e. the middle part of tube plate structure) of two pieces of tube plate structures to both sides (i.e. Fig. 2 thermal-arrest
Pipe A is to the direction B, C) extend, the density of protrusions of the lower wall surface of thermal-collecting tube 18 is higher and higher.Main cause is that middle part is heated minimum,
And extend from middle part to both sides, it absorbs heat and gradually rises.By the continuous raising of density of protrusions, entire thermal-arrest can be made
Water is heated evenly in pipe 18, avoids that medium temperature is too low and two sides temperature is excessively high.It in this way can also be to avoid intermediate thermal-collecting tube
18 material is easily damaged at high temperature, and the temperature of entire thermal-collecting tube can be kept uniform, prolonged the service life.
Preferably, outer fin can be set in the outer wall of thermal-collecting tube 18, such as can be set straight fins or helical fin,
The outer fin heights of different thermal-collecting tubes is different, along the link position (i.e. the middle part of tube plate structure) of two pieces of tube plate structures to both sides
(i.e. Fig. 2 thermal-collecting tube A to the direction B, C) extends, and the height of outer fin gradually decreases.Main cause is the original with front setting protrusion
Because identical.
Preferably, inner fin 25 is arranged inside the thermal-collecting tube, the inner fin 25 connects rectangular diagonal, such as figure
Shown in 3.The inner fin 25 will be divided into multiple passage aisles 27 inside thermal-collecting tube 18, intercommunicating pore 26 is arranged on inner fin, thus
Adjacent passage aisle 27 is set to communicate with each other.
By the way that inner fin 25 is arranged, multiple passage aisles 27 will be divided into inside thermal-collecting tube 18, further augmentation of heat transfer, but phase
The pressure increase for the fluid flowing answered.By setting intercommunicating pore 26, guarantee the connection between adjacent passage aisle 27, so that
Fluid in the big passage aisle of pressure can be flowed into the small passage aisle of neighbouring pressure, and the inside for solving condensation end is each small
The problem that 27 pressure of runner is uneven and local pressure is excessive, so that abundant flowing of the fluid in heat exchanger channels is promoted,
The setting for passing through intercommunicating pore 27 simultaneously, also reduces the pressure inside thermal-collecting tube, improves heat exchange efficiency, while also improving collection
The service life of heat pipe.
Preferably, along the flow direction of fluid in thermal-collecting tube 18, the area of the intercommunicating pore 27 constantly increases.
The intercommunicating pore 26 is circular configuration, along the flow direction of fluid in thermal-collecting tube 18, the circular configuration
Radius constantly increases.
Because the fluid in thermal-collecting tube 18 constantly absorbs heat and even evaporates along the flow direction of fluid in thermal-collecting tube 18,
So that the pressure of thermal-collecting tube constantly increases, and because of the presence of intercommunicating pore 26, so that the pressure inside thermal-collecting tube 18
Distribution is more and more uniform, therefore the area needs of intercommunicating pore are very big, constantly become larger by setting, so that guaranteeing heat pipe
In the case where the uniform pressure of internal pressure, increase heat exchange area by being connected to the variation of hole area, to improve heat exchange effect
Rate.
Preferably, along the flow direction of fluid in thermal-collecting tube 18, the continuous increased width of the area of the intercommunicating pore 26
Degree is continuously increased.By so set, and meet the changing rule of flowing pressure, while further decreasing flow resistance,
Improve heat exchange efficiency.By so set, 9% or so heat exchange efficiency, while resistance base can be improved by testing discovery
Originally it remains unchanged.
Preferably, along the flow direction of fluid in thermal-collecting tube 18, the distributed quantity of intercommunicating pore 26 is more and more, further
It is preferred that the continuous increased amplitude of the connection hole number 26 is continuously increased.
It is identical as area reduction principle by the Distribution Principle of above-mentioned quantity, compared with connection hole number is identical, lead to
Distributed number is crossed to reduce circulation area.
It being found in actual experiment, the area of intercommunicating pore 26 cannot be too small, it will lead to the increase of flow resistance if too small,
So as to cause the decrease of heat exchange, the area of intercommunicating pore 26 cannot be excessive, and area is excessive, will lead to the reduction of heat exchange area, thus
Reduce heat transfer effect.Equally, the cross-sectional area of thermal-collecting tube 18 cannot be excessive, excessive to cause to be distributed in tube plate structure unit length
Heat exchanger tube is very few, also results in heat transfer effect variation, and thermal-collecting tube flow area can not be too small, too small to will lead to flow resistance increasing
Add, so as to cause heat transfer effect variation.Therefore between intercommunicating pore 26 and thermal-collecting tube cross-sectional area and its adjacent intercommunicating pore 26
Distance must satisfy certain requirement.
Therefore, the present invention is the thousands of secondary numerical simulations and test data of the heat collector by multiple and different sizes,
Meet (10MPa or less) in the case of industrial requirements pressure-bearing, in the case where realizing maximum heat exchange amount, the optimal thermal-arrest that sums up
The dimensionally-optimised relationship of device.
The present invention be 18 cross section of heat collector be carried out under square it is dimensionally-optimised.
The interior side length (i.e. square outer side length subtracts wall thickness) of the square is L, the radius r of the intercommunicating pore, institute
Stating the distance between intercommunicating pore adjacent on same fin is l, meets following relationship:
L/L*10=a*ln (r/L*10)+b;
Wherein ln is logarithmic function, and a, b are parameter, 1.5 < a < 1.6,2.9 <b < 3.0;
0.34<l/L<0.38;
0.14<r/L<0.17;
30mm<L<120mm;
5mm<r<17mm。
Wherein, l is equal to the distance between adjacent 26 center of circle of intercommunicating pore.Left and right as shown in Figure 4,5 is adjacent and neighbouring
The distance between the intercommunicating pore center of circle.
Further preferably, 15mm < l < 45mm.
Preferably, with the increase of r/L, a, b increase.
Preferably, a=1.57, b=2.93.
Preferably, as shown in Figure 4,5, multiple rows of intercommunicating pore 26 is arranged on each inner fin, as shown in figure 5, the multiple
Intercommunicating pore 26 is wrong row's structure.By mistake, row connects structure, can be further improved heat exchange, reduces pressure.
Preferably, heat utilization device 24 can be storage heater 28, it is also possible to desalination plant as shown in Figure 9
29.Of course, it is possible to be that storage heater 28 and desalination plant 29 are in parallel, as shown in Figure 7.Fig. 7 illustrates solar thermal collection system
A new embodiment.As shown in fig. 7, solar energy collector system includes that two storage heaters being mutually in parallel 28 and seawater are light
Makeup sets 29.
Solar energy collector system as shown in Figure 7, the system comprises heat collectors 1, storage heater 28, desalination plant
29, valve 30, valve 31, valve 37, temperature sensor 32, the heat collector 1 are connected to form circulation loop with storage heater 28, collection
Hot device 1 is connected to form circulation loop with desalination plant 29, and the pipeline where storage heater 28 and desalination plant 29 is in parallel,
Heat collector 1 absorbs solar energy, heats the water in heat collector 1, and the water after heating respectively enters storage heater 28 by outlet pipeline 34
With desalination plant 29, entering heat collector by water return pipeline 36 in the water that storage heater 28 and desalination plant 29 flow out
It exchanges heat in 1.
It certain storage heater and can be replaced using other heat utilization devices with desalination plant 29.
In above system, accumulation of heat is carried out simultaneously in storage heater 28 by solar energy, sea water desalination can be carried out.Certainly,
Desalination plant and storage heater can be with one of independent operatings or isolated operation, and wherein Fig. 9 is exactly isolated operation seawater
Desalting plant.
As shown in fig. 7, valve 30 is arranged on outlet pipe, for control into storage heater 28 and desalination plant 29
The position of the inlet tube of the pipeline where desalination plant 29 is arranged in total water, valve 31, enters seawater for controlling
The flow of the water of desalting plant 29, the position of the inlet tube 33 of the pipeline where storage heater 28 is arranged in valve 37, for controlling
Into the flow of the water of storage heater 28, temperature sensor 32 is arranged at the position of the entrance of desalination plant 29, for surveying
Amount enters the temperature of the water of desalination plant 29.The system also includes central controller, the central controller and valve
30, valve 31, valve 37, temperature sensor 32 carry out data connection.
Preferably, when the temperature that temperature sensor 32 measures is lower than certain temperature, central controller controls valve
Door 31 increases aperture, while control valve 37 reduces aperture, is mentioned with increasing the flow for the hot water for entering desalination plant 29
The ability to work of high desalination plant.When the temperature that temperature sensor 32 measures is higher than certain temperature, center control
Device control valve 31 processed reduces aperture, while control valve 37 increases aperture, to reduce the hot water for entering desalination plant 29
Flow reduce the ability to work of desalination plant.Pass through above-mentioned control, it is ensured that the sea of desalination plant 29
Water desalination go out fresh water rate be held essentially constant, avoid it is excessive or very few, and can also in the case where heat has extra, will
More hot water are stored by storage heater 28.
When the temperature that temperature sensor 32 measures is reduced to a certain degree, the external seawater of desalination plant at this time
The ability of desalination can be deteriorated, and be unable to satisfy normal demand, this shows that the collection thermal energy power of solar thermal collector also goes wrong, example
It is not very strong as sunlight is existing, or when do not have the sun at night, valve 30 can be automatically closed at this time, valve 31 and valve 37
It can fully open, the pipeline where storage heater and desalination plant forms a circulation line, and water enters storage heater, storage heater
The thermal energy of storage is heated to water in storage heater is entered, and the water of heating, which enters, carries out sea water desalination in desalination plant 29.
By above-mentioned operation, can when sunray is strong, in the heat-sinking capability for meeting desalination plant 29,
After meeting user's radiating requirements, extra heat is subjected to accumulation of heat by storage heater 28, in solar thermal collector 1 for thermal energy
In hypodynamic situation, the energy heats recirculated water stored using storage heater, to meet the needs of desalination plant 29.In this way
Solar energy can be made full use of, the waste of excessive heat is avoided.
Preferably, ancillary heating equipment 2 is also set up on the pipeline of desalination plant 29, as shown in figure 9, sea water desalination
Water in 29 pipeline of device flows through assisted heating device in advancing into for desalination plant 29.The ancillary heating equipment 2
Start heating automatically according to the temperature for flowing through the water in assisted heating device 2.
Preferably, assisted heating device 2 can be electric heater, hot-water boiler or other heat exchangers, wherein Fig. 9 exhibition
A heat-exchanger rig is shown.The main function of electric heater or hot-water boiler is to play the role of auxiliary heating, such as work as utilization
The water of solar energy heating does not reach scheduled temperature, this is to can star electric heater or hot-water boiler.
The electric heater and/or hot-water boiler and/or heat exchanger further include control system, and the control system includes surveying
The temperature sensor and central controller of amount temperature, electric heater and/or hot-water boiler and/or heat exchanger are according to entering electric heating
The temperature of the water of device and hot-water boiler and/or heat exchanger starts automatically, heats to hot water.It is carried out below for electric heater
Explanation.
Temperature sensor is used to measure the temperature into the water of electric heater, and central controller is for controlling electric heater
Heating power.When the inflow temperature of measurement is lower than temperature a, electric heater starting heating, and heated with power A;Work as heat
When the inflow temperature of measurement is lower than the temperature b lower than temperature a, electric heater is heated with the power B higher than power A;Work as survey
When the inflow temperature of amount is lower than the temperature c lower than temperature b, electric heater is heated with the power C higher than power B;Work as measurement
Inflow temperature when being lower than the temperature d lower than temperature c, electric heater higher than the power D of power C to be heated;When measurement
When inflow temperature is lower than the temperature e lower than temperature d, electric heater is heated with the power E higher than power D.
Of course, it is possible to which selection can set to increase the accuracy of measurement temperature in the water outlet of electric heater
Another temperature sensor is set, the starting of electric heater is calculated by the average value of the temperature of the measurement of two temperature sensors
Power.
For boiler, automatic ignition device is set.When the temperature of the water into boiler of measurement is lower than certain temperature
When spending, boiler is heated with regard to starting ignition device.When the temperature of the water of measurement reaches certain temperature, then just
Stopping is heated.
Of course, it is possible to which selection can be arranged another to increase the accuracy of measurement temperature in the water outlet of boiler
One temperature sensor calculates the starting function of electric heater by the average value of the temperature of the measurement of two temperature sensors
Rate.
Certainly preferably, a heat exchanger can be set as ancillary heating equipment, as shown in Figure 9.Heat exchanger provides
Heat source exchanges heat with the water for entering desalination plant 29, and the heat exchanger automatically provides heat according to the water temperature for entering heat exchanger
Source exchanges heat.If the temperature that measurement enters the water of heat exchanger is lower than certain temperature, central controller controls are changed
Hot device provides heat source heat hot water.When the temperature of the water of measurement reaches certain temperature, then just stop providing heat source.
Fig. 8 illustrates a further improved specific embodiment of solar thermal collector device.For not referring to
Feature it is identical as the embodiment of front.It preferably, further include water tank 39, the thermal-collecting tube is loop circuit heat pipe, loop circuit heat pipe
Condensation end be arranged in solar water container 39.Heat collector absorbs the heat of solar energy, the evaporation ends of reheat loop heat pipe, evaporation
The working fluid at end passes through the condensation end for being recycled into loop circuit heat pipe, carries out heat release in condensation end, the water in heating water tank.Cold
The evaporation ends that heat pipe is re-circulated into after the completion of solidifying end heat release are heated.Preferably, wherein the evaporation ends of loop circuit heat pipe are
Heat collector.
As shown in figure 8, electric heater unit can be arranged in water tank, when the leaving water temperature of water tank is lower than certain numerical value
When, it can star electric heater unit.The present invention realizes the intelligent control to seawater desalination system in several ways.
As improving one, temperature sensor is set in the water tank 39, for measuring the temperature of the water in water tank 39.Water
Entrance tube valve 44 is respectively set on the inlet tube 41 and outlet 40 of case 39 and exports tube valve 43, the temperature sensor,
Entrance tube valve 44 and outlet tube valve 43 and 45 data connection of central controller.Central controller 45 is surveyed according to temperature sensor
The temperature of amount come control entrance tube valve 44 and export tube valve 43 opening and closing and aperture size.
If the temperature of the water in temperature sensor measurement water tank 39 is lower than the numerical value of lower limit, central controller 45 is controlled
Valve 43,44 is automatically closed, to guarantee that the water in water tank 39 continues heat temperature raising;If the temperature of the water in the water tank 39 of measurement
Degree is more than the numerical value of the upper limit, then 45 control valve 43,44 of central controller automatically opens.By above-mentioned measure, can and guarantee
The temperature for the water that water tank 39 exports keeps certain temperature, so as to reach utilizable temperature.
Preferably, the multiple temperature sensors of setting in the water tank 39, measure water by multiple temperature sensors
Temperature.
Preferably, central controller 45 is by the average value of the temperature of the water of multiple temperature sensor measurements come control valve
The opening and closing of door 43,22.
Preferably, central controller 45 is by the minimum of the temperature of the water of multiple temperature sensor measurements come control valve
The opening and closing of door 43,22.By taking minimum, it can guarantee that the temperature of the water of all positions in water tank 39 can reach sea
The utilizable temperature of water desalination apparatus.
Preferably, the position in water tank 39 close to tank entry pipe 41 is arranged at least one described temperature sensor
It sets.
Preferably, the position in water tank 39 close to vessel outlet 40 is arranged at least one described temperature sensor
It sets.
Two are improved as one, the central controller 45 is guaranteed by the size of the aperture of control valve 43,44
Leaving water temperature in water tank reaches steady state value.Water tank 39 is entered with the flow of water tank 39 said is left by adjusting to adjust water
The temperature of the water outlet of case 39.
Outlet pipe temp sensor 42, the outlet temperature sensor 42 and center are set on the tank outlet pipeline 17
45 data connection of controller, central controller 45 control entrance tube valve 44 according to the temperature that temperature sensor 42 measures and go out
The mouth opening and closing of tube valve 43 and the size of aperture.
If the temperature of the water for the outlet 19 that temperature sensor 42 measures is lower than the numerical value of lower limit, central controller 45
The aperture of control valve 43 increases, and reduces the aperture of valve 44, so that reducing into the water in water tank 39, so that leaving water
Water in case 39 increases, so that the discharge reduction in water tank 39.The temperature of water in water tank 39 is improved by the reduction of water
Degree, to improve the outlet temperature of water tank 39.On the contrary, the temperature of the water for the outlet 19 that temperature sensor 42 measures is higher than the upper limit
Numerical value, then 45 control valve 43 of central controller aperture reduce, increase valve 44 aperture so that into water tank 39
Interior water increases, so that the water left in water tank 39 is reduced, so that the water in water tank 39 increases.Pass through the increase of water
The temperature of water in water tank 39 is reduced, to reduce the outlet temperature of water tank 39.By above-mentioned measure, can and guarantee water tank 39
The temperature of the water of output is kept in a certain range, so as to reach the utilizable temperature of desalination plant 29.
Preferably, multiple temperature sensors 42 are arranged in the outlet 40, surveyed by multiple temperature sensors 42
The temperature of the water of water-masuring box outlet pipe.
Preferably, the average value of the temperature for the water that central controller 45 is measured by multiple temperature sensors 42 controls
The size of the aperture of valve 43,44.
Preferably, the minimum of the temperature for the water that central controller 45 is measured by multiple temperature sensors 42 controls
The aperture of valve 43,44.By taking minimum, it is capable of the further accuracy of data.
Preferably, outlet 40 is arranged in close to the position of water tank 39 at least one described temperature sensor.
Preferably, it is 5-10 degrees Celsius, preferably 6-8 degrees Celsius that limit value, which subtracts lower numerical limit,.
It is lower to be known as improving three as the further improvement for improving two, by the temperature of water in measurement water tank 39 come control valve
The opening and closing of door 43,44.
If the temperature of the water for the water tank 39 that temperature sensor 42 measures is lower than the numerical value of lower limit, central controller 45 is controlled
The aperture of valve 43 processed increases, and reduces the aperture of valve 44, so that reducing into the water in water tank 39, so that leaving water tank
Water in 39 increases, so that the discharge reduction in water tank 39.The temperature of water in water tank 39 is improved by the reduction of water,
To improve the outlet temperature of water tank 39.On the contrary, the temperature of the water in the water tank 39 that temperature sensor 42 measures is higher than the upper limit
Numerical value, then the aperture of 45 control valve 43 of central controller is reduced, and increases the aperture of valve 44, so that into water tank 39
Water increase reduced so that leaving water in water tank 39, so that the water in water tank 39 increases.By the increase of water come
The temperature for reducing water in water tank 39, to reduce the outlet temperature of water tank 39.By above-mentioned measure, can and guarantee that water tank 39 is defeated
The temperature of water out is kept in a certain range, so as to reach the utilizable temperature of desalination plant.
Preferably, the multiple temperature sensors of setting in the water tank 39, measure water by multiple temperature sensors
Temperature.
Preferably, central controller 45 is by the average value of the temperature of the water of multiple temperature sensor measurements come control valve
The aperture of door 43,22.
Preferably, central controller 45 is by the minimum of the temperature of the water of multiple temperature sensor measurements come control valve
The aperture of door 43,22.By taking minimum, can guarantee that the temperature of the water of all positions in water tank 39 can reach can
With the temperature utilized.
Preferably, the position in water tank 39 close to tank entry pipe 41 is arranged at least one described temperature sensor
It sets.
Preferably, the position in water tank 39 close to vessel outlet 40 is arranged at least one described temperature sensor
It sets.
Preferably, it is 8-13 degrees Celsius, preferably 9-11 degrees Celsius that limit value, which subtracts lower numerical limit,.
As improving four, water-level gauge, 45 data connection of the water-level gauge and central controller are set in the water tank 39.
The height of central controller level monitoring to the aperture of control valve 43,44 size.
By the height of level monitoring, avoid the water level in water tank too low, thus cause thermal-collecting tube release end of heat that can not radiate,
It causes thermal-collecting tube to damage, while avoiding the water level in water tank 39 excessively high, to cause pressure in water tank excessive, especially heating
In the case where boiling.
If the water level of the water tank 39 of water-level gauge measurement is higher than the numerical value of the upper limit, 45 control valve 43 of central controller
Aperture increases, and reduces the aperture of valve 44, so that reducing into the water in water tank 39, so that the water left in water tank 39 increases
Add, so that the discharge reduction in water tank 39.The water level of water in water tank 39 is reduced by the reduction of water.On the contrary, water level
The numerical value that the water level in the water tank 39 of measurement is lower than lower limit is counted, then the aperture of 45 control valve 43 of central controller is reduced, and is increased
The aperture of valve 44, so that increasing into the water in water tank 39, so that the water left in water tank 39 is reduced, so that water
Water in case 39 increases.
Preferably, the limit value of water level be water tank capacity 90%-95% where height, preferably 93%.
Preferably, the lower numerical limit of water level is that thermal-collecting tube release end of heat protrudes into the height in water tank.To guarantee in water tank
Water cover release end of heat comprehensively.
It improves fifth is that improving one, improving four improvement combined.
If the temperature of the water in temperature sensor measurement water tank 39 is lower than the numerical value of lower limit, at this time central controller 45
Carry out the opening and closing of autocontrol valve 43,44 according to the water level that the water-level gauge of monitoring measures, concrete measure is as follows:
The water level for the water-level gauge measurement that central controller 45 monitors is higher than lower limit value and is lower than upper limit value, then center control
45 control valve 44,44 of device is automatically closed, to guarantee that the water in water tank 39 continues heat temperature raising;
The water level for the water-level gauge measurement that central controller 45 monitors is lower than lower limit value, then 45 control valve 43 of central controller
It is automatically closed, valve 44 continues to open, to guarantee that water continues to flow into water tank 39, when the water-level gauge that central controller 45 monitors
The water level of measurement is at or above lower limit value, then 45 control valve 44 of central controller is automatically closed;
The water level for the water-level gauge measurement that central controller 45 monitors is higher than upper limit value, then 45 control valve 43 of central controller
Continue to open, valve 44 is automatically closed, to guarantee that water continues to flow out water tank 39, when the water level measurement that central controller 45 monitors
The water level of amount is equal to or less than upper limit value, then 45 control valve 43 of central controller is automatically closed.
As soon as remaining feature is identical as improvement, improvement five, no longer describe one by one.
It improves sixth is that improving two, improving four improvement combined.
If the temperature of the water for the outlet that temperature sensor 42 measures is lower than the numerical value of lower limit, 45 basis of central controller
The water level of the water-level gauge measurement of monitoring carrys out the aperture of autocontrol valve 43,44, and concrete measure is as follows:
The water level for the water-level gauge measurement that central controller 45 monitors is lower than upper limit value, then 45 control valve 43 of central controller
Aperture increase, reduce valve 44 aperture so that into water tank 39 water reduce so that leaving the water in water tank 39
Increase, so that the discharge reduction in water tank 39, if the water level in water tank 39 is reduced to lower limit value or close to lower limit value,
Then central controller controls valve 43,44 is closed;
The water level for the water-level gauge measurement that central controller 45 monitors is lower than lower limit value, then 45 control valve 43 of central controller
It closes, is simultaneously emitted by alarm;Show the water temperature that cannot achieve needs at present at this time, reason may be intensity of illumination not enough or its
His reason, to remind operator to pay attention to.
If the temperature of the water for the outlet that temperature sensor 42 measures is higher than the numerical value of the upper limit, 45 basis of central controller
The water level of the water-level gauge measurement of monitoring carrys out the aperture of autocontrol valve 43,22, and concrete measure is as follows:
The water level for the water-level gauge measurement that central controller 45 monitors is lower than upper limit value, then 45 control valve 43 of central controller
Aperture reduce, increase valve 44 aperture so that into water tank 39 water increase so that leaving the water in water tank 39
It reduces, so that the water in water tank 39 increases;If the water level in water tank 39 increases to upper limit value or close to upper limit value,
Then central controller controls valve 43,44 is closed;
The water level for the water-level gauge measurement that central controller 45 monitors is higher than upper limit value, then 45 control valve 44 of central controller
It closes, is simultaneously emitted by alarm;Show the water temperature that cannot achieve needs at present at this time, reason may be setting water temperature it is too low or its
His reason, to remind operator to pay attention to.
As soon as remaining feature is identical as improvement, improvement five, no longer describe one by one.
Fig. 9 illustrates an idiographic flow schematic diagram of solar energy sea water desalination apparatus in preceding embodiment.In certain Fig. 9
Heat collector 1 can also be replaced using water tank 39.
The desalination plant includes liquid distributor 7, vaporization chamber 8-10, board-like preheating heat exchanger 15, fresh-water tank 11, light
Water discharge pump 12, concentrated seawater case 13, concentrated seawater discharge pump 14.Package unit include two sets circulation, respectively seawater circulation and add
Heat recirculated water circulation.
Wherein, the hot water heated in the water tank 39 that solar thermal collector 1 or process heat collector 1 heat enters vaporization chamber,
In vaporization chamber 8 after the spray heat exchange of liquid distributor 7, plate heat exchanger 6 is entered back into, is carried out with the seawater in plate heat exchanger 6
Heat exchange, is then recycled back into heater 1 or water tank 39 and is heated.
Preferably, the ancillary heating equipment 2 is arranged between heat collector or water tank 39 and vaporization chamber.
Preferably, recirculated water is stored in cyclic water tank 4, the cyclic water tank 4 is arranged in plate heat exchanger 6 and thermal-arrest
Between device 1 or water tank 39.Preferably, the recirculated water is recycled under the action of recirculating water pump 3.In addition can pass through
Circulating cooling make-up water pump 5, recirculated water is added into system.
Seawater is by seawater intake pump 16, by seawater input in board-like preheating heat exchanger 15, in board-like preheating heat exchanger
By entering plate heat exchanger 6 after the preheating of the fresh water steam in vaporization chamber in 15, carried out in board-like preheating heat exchanger 6
After heat exchange, into vaporization chamber, by the spray heat exchange of liquid distributor 7 in vaporization chamber, the steam evaporated after heat exchange enters board-like
Preheating heat exchanger preheats the seawater for entering system, to realize making full use of for heat, subsequently into being finally collected into
It in fresh-water tank 11, can be discharged by fresh water extraction pump 12, the vaporization chamber connects concentrated seawater case 13, and remaining concentrated seawater will also be collected
In concentrated seawater case 13, it is discharged via concentrated seawater discharge pump 14.
Preferably, the vaporization chamber includes multistage evaporation room, the multistage evaporation room is connected in series, and seawater is steamed in higher level
It sends out and is entering next stage vaporization chamber after exchanging heat in room, the steam of the upper level vaporization chamber evaporation enters next stage vaporization chamber, makees
It exchanges heat for heat source with the seawater for entering next stage vaporization chamber.
Preferably, the hot water heated in the solar thermal collector 1 or the water tank 39 heated by heat collector 1 into
Enter first order vaporization chamber 8.
Preferably, the vaporization chamber is 3 grades, room first order vaporization chamber 8, second level vaporization chamber 9, the third level are evaporated respectively
Room 10, shown board-like preheating heat exchanger 15 are 3, and the steam that the first order vaporization chamber 8 comes out enters second level vaporization chamber 9
Afterwards, the first board-like preheating heat exchanger 15 is entered back into, the steam that the second steaming grade hair room 9 comes out enters third level vaporization chamber 10
Afterwards, the second board-like preheating heat exchanger 15 is entered back into, the steam that third level vaporization chamber 10 comes out is directly entered the board-like preheating of third and changes
Hot device 15.
Preferably, the seawater successively passes through third, the second, first board-like preheating heat exchanger 15.It is found through experiments that,
By this sequence, optimal seawater fresh water rate can achieve.Main cause is third, the second, first board-like preheating heat exchanger 15
In exchange capability of heat gradually decrease, seawater first passes through the low heat exchanger of exchange capability of heat, is then gradually risen with this by exchange capability of heat
High heat exchanger so that the temperature of seawater gradually rises and exchanges heat, avoid be directly over the strong heat exchanger of exchange capability of heat into
Entering the weak heat exchanger heat exchange of exchange capability of heat after row heat exchange, ideal heat exchange effect is not achieved in the weak heat exchanger of exchange capability of heat
Fruit.
Preferably, temperature sensor and flow sensor are arranged on the solar pipe road for entering first evaporator 8
(Fig. 9 only identifies temperature sensor) enters the temperature of the hot water of first evaporator 8 and the flow of hot water, institute for measuring
It states into setting valve 46 on the seawaterline of first order vaporization chamber 8, enters 8 flow of first order vaporization chamber for controlling, it is described
System further includes controller, and the controller is connect with temperature sensor, flow sensor, valve data, the controller root
Hot water temperature and hot water flow according to measurement, the aperture of autocontrol valve 46.
The controller is that valve control, specific control mode are carried out according to the combination of hot water temperature and hot water flow
It is as follows: control parameter Q=(hot water temperature-fiducial temperature) * hot water flow, it is automatic to increase if the control parameter Q of measurement increases
Add the aperture of valve, if the control parameter Q of measurement is reduced, the automatic aperture for reducing valve.
By above-mentioned intelligent control, may be implemented to control the seawater for participating in heat exchange with hot water temperature and changes in flow rate
Flow, avoid participate in exchange heat seawater amount it is excessively high perhaps too low so that extra large hypervolia or very few is avoided, to influence light
Change effect.
Preferably, the fiducial temperature is 25-35 DEG C.
Preferably, seawater intake pump 16 and controller carry out data connection, controller is according to entrance first order vaporization chamber 8
Seawaterline on 46 aperture adjust automatically intake pump 16 of valve power.If 45 aperture of valve increase, increase automatically into
The power of water pump 16, if 46 aperture of valve reduces, the automatic power for reducing intake pump 16.
The controller can be above-mentioned central controller 45, be also possible to new controller.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention
When being defined by the scope defined by the claims..
Claims (9)
1. a kind of intelligent control solar seawater desalination system according to constant level, the system comprises heat collector, water tank and
Its desalination plant, by piping connection between the water tank and desalination plant, heat collector includes thermal-collecting tube, the collection
Heat pipe is loop circuit heat pipe, and the condensation end of loop circuit heat pipe is arranged in water tank, and heat collector absorbs the heat of solar energy, reheat loop heat
The evaporation ends of pipe, the working fluid of evaporation ends are heated by being recycled into the condensation end of loop circuit heat pipe in condensation end progress heat release
Water in water tank, the evaporation ends that heat pipe is re-circulated into after the completion of condensation end heat release are heated, and the water after heating is by going out
Water lines enter desalination plant, enter back into water tank and are heated in the water of desalination plant outflow;
Entrance tube valve and outlet tube valve, the entrance tube valve and outlet are respectively set on the inlet tube and outlet of water tank
Tube valve and central controller data connection;Water-level gauge, the water-level gauge and central controller data are set in the water tank
Connection, the height of central controller level monitoring is to control entrance tube valve and export the size of the aperture of tube valve;
The cross section of the thermal-collecting tube is square, and inner fin is arranged inside the thermal-collecting tube, and the inner fin connection is square
Shape it is diagonal, the inner fin will be divided into multiple passage aisles inside thermal-collecting tube, intercommunicating pore be arranged on inner fin, to make adjacent
Passage aisle communicate with each other;
The a length of L of inner edge of the square, the radius r of the intercommunicating pore, adjacent the distance between intercommunicating pore on same fin
For l, meet following relationship:
L/L*10=a*ln (r/L*10)+b;
Wherein ln is logarithmic function, and a, b are parameter, 1.5 < a < 1.6,2.9 <b < 3.0;
0.34<l/L<0.38;
0.14<r/L<0.17;
30mm<L<120mm;
5mm<r<17mm。
2. solar seawater desalination system as described in claim 1, if the water level of the water tank of water-level gauge measurement is higher than the upper limit
Numerical value, then central controller controls outlet tube valve aperture increase, reduce entrance tube valve aperture so that into
Water in water tank is reduced, so that the water left in water tank increases, so that the discharge reduction in water tank, if water-level gauge measures
Water tank in water level be lower than lower limit numerical value, then central controller controls outlet tube valve aperture reduce, increase inlet tube
The aperture of valve, so that increasing into the water in water tank, so that the water left in water tank is reduced, so that in water tank
Water increases.
3. solar seawater desalination system as described in claim 1, the limit value of water level is the 90%-95% of water tank capacity
The height at place.
4. solar seawater desalination system as claimed in claim 3, the limit value of water level is 93% place of water tank capacity
Height.
5. solar seawater desalination system as described in claim 1, the lower numerical limit of water level is that thermal-collecting tube release end of heat protrudes into water
Height in case.
6. solar seawater desalination system as described in claim 1, the desalination plant includes vaporization chamber, in vaporization chamber
Liquid distributor is set, wherein the hot water of heat collector heating enters vaporization chamber, exchanges heat in vaporization chamber by the seawater spraying of liquid distributor
Afterwards, plate heat exchanger is entered back into, is exchanged heat with the seawater in plate heat exchanger, is then recycled back into heat collector and is added
Heat, the seawater after exchanging heat in the plate heat exchanger enter the indoor liquid distributor of evaporation.
7. solar seawater desalination system as claimed in claim 6, the vaporization chamber is 3 grades, be respectively first order vaporization chamber,
Second level vaporization chamber, third level vaporization chamber, board-like preheating heat exchanger are 3, and the steam that the first order vaporization chamber comes out enters
After the vaporization chamber of the second level, the first board-like preheating heat exchanger is entered back into, the steam that the second level vaporization chamber comes out enters the third level
After vaporization chamber, the second board-like preheating heat exchanger is entered back into, the steam that third level vaporization chamber comes out is directly entered the board-like preheating of third
Heat exchanger.
8. solar seawater desalination system as claimed in claim 7, the seawater successively pass through third, second, it is first board-like
Preheating heat exchanger.
9. solar seawater desalination system as claimed in claim 7, in the solar pipe Lu Shangshe for entering first order vaporization chamber
Temperature sensor and flow sensor are set, enters the temperature of the hot water of first order vaporization chamber and the flow of hot water for measuring, into
Enter and valve is set on the seawaterline of first order vaporization chamber, enters first order vaporization chamber flow for controlling, the system is also wrapped
Controller is included, the controller is connect with temperature sensor, flow sensor, valve data, and the controller is according to measurement
Hot water temperature and hot water flow, the aperture of autocontrol valve.
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CN201610106699.9A CN105692748B (en) | 2016-02-27 | 2016-02-27 | One kind auxiliary heating solar system and seawater desalination system |
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CN201710816890.7A Expired - Fee Related CN107628662B (en) | 2016-02-27 | 2016-02-27 | A kind of solar seawater desalination system according to water tank temperature intelligent control valve aperture |
CN201710817485.7A Expired - Fee Related CN108298624B (en) | 2016-02-27 | 2016-02-27 | A kind of intelligent control solar seawater desalination system of constant level |
CN201710817227.9A Expired - Fee Related CN107560201B (en) | 2016-02-27 | 2016-02-27 | A kind of solar seawater desalination system of intelligent control flow |
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CN110345454B (en) * | 2018-07-05 | 2020-06-23 | 青岛宝润科技有限公司 | Solar steam generator with square header heat pipe structure |
CN109945528B (en) * | 2018-08-03 | 2020-06-12 | 青岛佰腾科技有限公司 | Solar energy system of intelligence communication control |
CN111238067B (en) * | 2018-08-03 | 2021-01-08 | 青岛赛博贝斯数据有限公司 | Solar energy system for controlling closed system pump according to thermal fluid communication |
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Also Published As
Publication number | Publication date |
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CN108298624A (en) | 2018-07-20 |
CN105692748A (en) | 2016-06-22 |
CN108298623A (en) | 2018-07-20 |
CN107628662B (en) | 2018-11-16 |
CN107560201B (en) | 2019-01-18 |
CN105692748B (en) | 2017-11-10 |
CN107628662A (en) | 2018-01-26 |
CN107560201A (en) | 2018-01-09 |
CN108298623B (en) | 2019-04-02 |
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