CN206843115U - A kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up - Google Patents
A kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up Download PDFInfo
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- CN206843115U CN206843115U CN201720333450.1U CN201720333450U CN206843115U CN 206843115 U CN206843115 U CN 206843115U CN 201720333450 U CN201720333450 U CN 201720333450U CN 206843115 U CN206843115 U CN 206843115U
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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
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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
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
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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
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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Abstract
The utility model proposes a kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up, energized by non-concentrating but solar energy heat build-up mode medium temperature, avoid the condenser system of complexity, and make the work of desalting seawater through multi-effect evaporation system under positive pressure, in non-vacuum environment, effectively reduce and energy consumption and make water cost.The multistage preheating temperature bath that system is mainly energized by the controlled steam generation device of solar energy medium temperature heat build-up and common solar heat collector array forms.Wherein, the controlled steam generation device of solar energy medium temperature heat build-up mainly includes six parts such as metallic vapour generator tube, metal heat build-up collecting plate, printing opacity heat-barrier material, glass sandwich, support, common heat-barrier material；The preheating temperature baths at different levels of common solar heat collector array energy supply set the step heating that different temperature is used to intake, and reduce radiation loss.
Description
Technical field
It the utility model is related to a kind of seawater desalination system, more particularly to a kind of malleation fortune based on solar energy medium temperature heat build-up
Row desalting seawater through multi-effect evaporation system, belongs to solar energy heat utilization field.
Background technology
The energy and resource are to maintain the most basic key element of the human society survival and development.Solar energy be it is a kind of it is inexhaustible,
Widely distributed renewable and clean energy resource, it is developed has great importance for solving global energy with environmental crisis.
Water is the important component of natural resources, and human being's production life be unable to do without water.Covered by water on although surface that the earth has 71%
Lid, but river water, freshwater lake water and phreatic water that the mankind really are able to utilize account for global fresh water gross reserves
0.3%, only account for 7th/100000th of global total moisture storage capacity.The distribution of freshwater resources is also extremely uneven on the earth.About 65% water money
Source concentrates on less than 10 countries, and accounts for 80 countries and regions serious water shortages of world population sum 40%.For edge
Extra large water shortage area and anhydrous islands and reefs, desalinization are the effective ways for solving shortage of water resources.Some it is arid with it is semiarid interior
Land area, such as Xinjiang of China some areas, due to saline Land, saliferous is too high in the river of downstream, can not drink and be used for
Agricultural irrigation.In addition, reducing arable land salinity using desalinization of soil by flooding or leaching mode, the saline-alkali water to come out is also required to desalt processing.Therefore, it is coastal
Regional seawater and the desalination of hinterland saline-alkali water, for solving local shortage of fresh water, promote industrial or agricultural and Economic Sustainability
Development plays an important roll.
The mankind are very early that desalinization supplies energy using solar energy, have developed the solar energy closing-sunning type sea of diversified forms
Water maker, and improved using modes such as external mirror, solar heat collector heating.These devices are not required to outside substantially
Other energy are inputted, but aquifer yield and efficiency of utilization be not high.Main cause has at 2 points：First, solar radiant energy metric density is low
（1000 W/ m2）, and whole feed liquors in device for simultaneous heating, water vapor temperature be not high；Second, the evaporation latent heat of water is larger（One
Under individual atmospheric pressure, the latent heat of vaporization of water is 2257.2kJ/kg at 100 DEG C）, the latent heat after Water vapor condensation in such device not
It is recycled.For water vapor temperature it is not high the problem of, with the development of manufacturing technology, carried in recent years using optical concentration
The energy density of high solar radiation, higher temperatures position heat energy is obtained, has been realized from low-concentration（Less than 10 times）To high power concentrator（It is super
Cross 1000 times）Various applications.Use optical concentrator for seawater desalination system energize, effectively increase energy supply heat source temperature and
Aquifer yield.But solar condenser generally comprises the curved optic minute surface of high quality, followed the trail of in operation using complicated tracking system
The sun, there is also the problem of construction and higher operation expense.
For vapor latent heat is multiplexed, system producing water ratio and energy utilization efficiency, the hot method seawater of modern scale are improved
Desalination technology uses multistage flash vaporization（MSF）And multiple-effect distillation（MED）.MSF draws after raw material seawater is heated into certain temperature
Enter flash chamber, the Stress control in flash chamber is less than saturated vapor pressure corresponding to hot sea water temperature, therefore hot sea water enters flash distillation
Hot solution and rapidly partial gasification were become behind room, hot sea water own temperature reduces, as light after caused steam condensation
Water.MED is that the seawater allowed after heating evaporates in the horizontal tube sprinkling falling-film evaporator of multiple series connection, defeated with a certain amount of steam
Enter first effect, the previous thermal source for imitating the steam being evaporated as latter effect, the evaporating temperature and pressure of latter effect are below previous
Effect, by repeatedly evaporation and condensation, obtain the desalination process of distilled water for being multiple times than quantity of steam.Hot method MSF and MED technical operation
Temperature is not high, repeats the latent heat using water vapor condensation, obtains more times of aquifer yields, but needs a large amount of steam, at present typically with
Power plant builds together, and by recycling power plant's used heat, reduces the energy consumption and cost of production steam；Because negative pressure is run, system architecture
And operation control is complicated, power consumption and water cost height is made.
It can be seen that desalination with Solar Energy makes some progress, but foregoing key difficulties still do not solve.Pin
The problem of existing to these, the utility model realize that medium temperature energizes using non-concentrating solar energy heat gathering and energy collecting device, and herein
On the basis of devise the desalting seawater through multi-effect evaporation system of operation under positive pressure a kind of, not only solve that solar radiant energy metric density is low to be made
Into energy supply temperature it is low, or the problem of cause system complex using optical focusing system, and avoid multiple-effect evaporation seawater
Desalination system works in negative pressure, so as to simplify system architecture, reduces energy consumption and makes water cost.
The content of the invention
The purpose of this utility model is to provide a kind of operation under positive pressure multiple-effect evaporation seawater based on solar energy medium temperature heat build-up
Desalination system, realizing that medium temperature energizes using non-concentrating solar energy heat gathering and energy collecting device, and the basis of controllable generation vapor
On, the desalting seawater through multi-effect evaporation system in medium temperature stable operation is realized by malleation evaporation.
A kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up, mainly by multiple solar energy
Medium temperature heat build-up controlled steam generation device and the multistage preheating temperature bath composition of common solar heat collector array energy supply；Wherein, too
Positive energy medium temperature heat build-up controlled steam generation device mainly includes metallic vapour generator tube, metal heat build-up collecting plate, the heat-insulated material of printing opacity
Six parts such as material, laminated glass, support and common heat-barrier material；By metal heat build-up collecting plate by the solar energy converging of collection
Pipe is produced to metallic vapour, heating tube includes seawater, is allowed to that vaporization phase transformation occurs.
The metallic vapour generator tube is built-in with 4 vapour pipes, respectively water inlet pipe, water outlet pipe, steam outlet
Pipe, upper level/next stage steam pipe.Metallic vapour generator tube inside points are filled with during work, but are not filled with seawater, saliferous aqueous
Face determines according to operating temperature, the energy situation being collected into.So, the heat energy converged can concentrate the vapour for less liquid
Change, and greater proportion liquid can exchange heat with heated surface contact.Water inlet pipe and steam outlet pipe are placed in more than liquid level, water outlet
Mouth pipe and upper level/next stage steam pipe are placed in below liquid level, and upper level/next stage steam duct occlusion runs through whole piece metallic vapour
Generator tube, for vapor caused by upper level by obtaining and exchanging heat energy.
The afterbody of the steam outlet pipe is provided with steam-water separation silk screen, prevents seawater entrance of seething with excitement.
The metal heat build-up collecting plate is high-thermal conductive metal flat board, and for efficient heat transfer, area is according to heat build-up temperature requirement
Determined with radiation loss, its light receiving surface preparation work passes through assembling in the selectively absorbing layers of medium temperature, metallic vapour generator tube
Buckle is close to metal heat build-up collecting plate.
The surrounding of the solar energy medium temperature heat build-up controlled steam generation device is the heat insulation structure of double glazing, and
One layer of printing opacity heat-barrier material and common heat-barrier material are respectively equipped with its upper and lower surface.
The malleation desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up is run under non-vacuum environment
A kind of desalinization system, avoid multiple-effect evaporation and worked containing seawater desalination system in negative pressure, simplify the structure of system.
Brackish water is introduced into the multistage preheating temperature bath segmentation step heating energized by common solar heat collector array after being pumped into system, and
It is heated in afterbody preheating temperature bath near boiling temperature.Segmentation step heating is the heating side because different potential temperatures
Method, radiation loss and heat insulation measure are different；It is in order to as far as possible by common heat collector battle array that afterbody, which is heated to boiling temperature,
Row provide sensible heat needed for water heating, and the energy of solar energy medium temperature heat build-up controlled steam generation device convergence is used for water vapor as far as possible
Phase transformation.Each preheating temperature bath temperature and the water kept are steamed according to system（Water）Speed, according to the original for reducing radiation loss
Then determine.Temperature sequentially enters each " effect " solar energy medium temperature heat build-up controlled steam close to the brackish water of boiling point and produces dress after preheating
Put, energy is released in heat absorption vaporization wherein, transducing, and the fresh water of permanent set is cooled to slightly above entrance in brackish water preheats temperature bath
Saliferous coolant-temperature gage, Exchange of apparent heat is given to the brackish water being newly pumped into.
Brief description of the drawings
Fig. 1：Operation under positive pressure desalting seawater through multi-effect evaporation system schematic based on solar energy medium temperature heat build-up；
Fig. 2：Solar energy medium temperature heat build-up controlled steam generation device；
Fig. 3：Metallic vapour produces pipe schematic diagram；
In figure, 1-metallic vapour generator tube, 2-metal heat build-up collecting plate, 3-printing opacity heat-barrier material, 4-laminated glass,
5-support, 6-common heat-barrier material, 7-connect one-level steam inlet tube, 8-water outlet pipe, 9-steam outlet pipe,
10-steam-water separation silk screen, 11-seawater liquid level, 12-water inlet pipe, 13-connect next stage steam inlet, 14-upper level/under
One-level steam pipe.
Embodiment
The utility model proposes a kind of malleation desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up, below
Figure of description will be combined, and the present invention is described in detail.As shown in Figure 1, Figure 2, Figure 3 shows, it is a kind of to be based on solar energy medium temperature heat build-up
Malleation desalting seawater through multi-effect evaporation system, by multiple solar energy medium temperature heat build-up controlled steam generation devices and common solar heat-collection
The multistage preheating temperature bath composition of device array energy supply.Wherein, solar energy medium temperature heat build-up controlled steam generation device mainly includes gold
Belong to steam-generating tube（1）, metal heat build-up collecting plate（2）, printing opacity heat-barrier material（3）, laminated glass（4）, support（5）Commonly every
Hot material（6）Deng six parts.
In Fig. 1, seawater is sent into system by water pump, initially enters and is preheated by the multistage of common solar heat collector array energy supply
Temperature bath segmentation step heating, and it is heated to boiling temperature in afterbody；Seawater flows through successively multiple works in not equality of temperature
Degree, " effect " steam of pressure are produced in pipe, and each " effect " steam produces indirect steam caused by pipe and introduces next " effect " steam production
Raw pipe condenses heat release as heating steam in next " effect " steam produces pipe；It is the acquisition of each " effect " energy, conversion, defeated
Fortune and steam production intercouple association.
Because the heating means of different potential temperatures, radiation loss and heat insulation measure are different；Therefore using segmentation step
Mode is heated, and it is in order to which sensible heat needed for water heating is carried by common collector array as far as possible that afterbody, which is heated to boiling temperature,
For the energy of solar energy medium temperature heat build-up controlled steam generation device convergence is used for water vapor phase transformation as far as possible；Temperature connects after preheating
The water of nearly boiling point then in each " effect " medium temperature heat build-up controlled steam generation device transducing, vaporize phase transformation, last Water vapor condensation
And energy exchange is given and is newly pumped into seawater.
Claims (4)
- A kind of 1. operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up, mainly by multiple solar energy Warm heat build-up controlled steam generation device and the multistage preheating temperature bath composition of common solar heat collector array energy supply；Wherein, the sun Energy medium temperature heat build-up controlled steam generation device mainly includes metallic vapour generator tube（1）, metal heat build-up collecting plate（2）, printing opacity every Hot material（3）, laminated glass（4）, support（5）With common heat-barrier material（6）Deng six parts；Characterized in that, in solar energy Metallic vapour generator tube in warm heat build-up controlled steam generation device（1）It is built-in with 4 vapour pipes, respectively water inlet pipe （12）, water outlet pipe（8）, steam outlet pipe（9）, upper level/next stage steam pipe（14）, water inlet pipe and steam outlet Pipe is placed in more than liquid level, and water outlet pipe and upper level/next stage steam pipe are placed in below liquid level, upper level/next stage steam pipe Closing runs through whole piece metallic vapour generator tube.
- A kind of 2. operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up according to claim 1 System, it is characterised in that the afterbody of the steam outlet pipe in metallic vapour generator tube is provided with steam-water separation silk screen.
- A kind of 3. operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up according to claim 1 System, it is characterised in that prepared by the metal heat build-up collecting plate upper surface in solar energy medium temperature heat build-up controlled steam generation device have The selectively absorbing layers of middle-temperature section steady operation, metallic vapour generator tube are close to metal heat build-up collecting plate by assembling buckle.
- A kind of 4. operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up according to claim 1 System, it is characterised in that the surrounding of solar energy medium temperature heat build-up controlled steam generation device is the heat insulation structure of double glazing, And it is respectively equipped with one layer of printing opacity heat-barrier material and common heat-barrier material in its upper and lower surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333450.1U CN206843115U (en) | 2017-03-31 | 2017-03-31 | A kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720333450.1U CN206843115U (en) | 2017-03-31 | 2017-03-31 | A kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on solar energy medium temperature heat build-up |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745434A (en) * | 2017-03-31 | 2017-05-31 | 云南师范大学 | A kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on the middle temperature heat build-up of solar energy |
| CN116332267A (en) * | 2023-05-26 | 2023-06-27 | 甘肃新瑞城市建设有限公司 | Water treatment facilities that saline and alkaline land was administered usefulness |
-
2017
- 2017-03-31 CN CN201720333450.1U patent/CN206843115U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745434A (en) * | 2017-03-31 | 2017-05-31 | 云南师范大学 | A kind of operation under positive pressure desalting seawater through multi-effect evaporation system based on the middle temperature heat build-up of solar energy |
| CN106745434B (en) * | 2017-03-31 | 2023-05-12 | 云南师范大学 | Positive pressure operation multi-effect evaporation sea water desalination system based on solar energy medium temperature heat collection |
| CN116332267A (en) * | 2023-05-26 | 2023-06-27 | 甘肃新瑞城市建设有限公司 | Water treatment facilities that saline and alkaline land was administered usefulness |
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