CN101012071A - Film-shell type multiple-effect film-reducing distillation sea-water desalinating device - Google Patents
Film-shell type multiple-effect film-reducing distillation sea-water desalinating device Download PDFInfo
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- CN101012071A CN101012071A CNA2007100631973A CN200710063197A CN101012071A CN 101012071 A CN101012071 A CN 101012071A CN A2007100631973 A CNA2007100631973 A CN A2007100631973A CN 200710063197 A CN200710063197 A CN 200710063197A CN 101012071 A CN101012071 A CN 101012071A
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a film-case typed multiple-effect falling-film distilling desalination device of seawater, which is characterized by the following: adopting plastic film to replace traditional metal heat exchange material to make film beam heat-exchange component; welding two films; drawing silk ribbon; supporting keel to form film beam; placing multiple film beams at equal interval; welding film beam and end film to make heat exchange component of film beam; connecting end film and case; insulating seawater from fresh water; placing film beam component in certain container unit of case to constitute evaporator.
Description
Technical field
The invention belongs to water treatment and sea water desaltination field, particularly a kind of film-shell type multiple-effect film-reducing distillation sea-water desalinating device.Be to utilize the little characteristics of pressure reduction between the multiple-effect distillation device effect specifically, substitute traditional metal heat exchange material with plastics film, be designed to putamina formula structure, adopt the falling-film distillation technical process, adopt welding, equidistant silk ribbon stretch-draw or keel to support between the film, be used for the preparation of multiple-effect distillation sea water desalting and high purity water.
Background technology
China's year is about 2400 cubic metres of Freshwater resources per capita, be the world per capita Freshwater resources 1/4.In more than 660 city, the whole nation, more than 400 urban water shortage arranged, wherein 108 city serious water shortages.Shortage of fresh water is one of maximum restraining factors of China's sustainable economic development, especially coastland.Therefore develop sea water desaltination, solve the coastal shortage of fresh water problem of China and have extremely important realistic meaning.
By the end of December 31 calendar year 2001, whole world 100m
3/ d and above sea water desalinating plant amount to 15,223, total water-yielding capacity 32,400,000m
3/ d.At present the average growth rate per annum of newly-increased installed capacity is about 8%, and about 1000 dollars of the ratio cost of low temperature multiple-effect distillation sea water desalting device/(ton per day), so sea water desaltination is huge, as to have a development prospect market.2 * 10 of Hebei Cang Dong electricity generating corporation, Ltd introduction, 000m
3/ d low temperature multiple-effect distillation sea water desalting device puts into operation, and North SinKiang, Tianjin power plant intends introducing 4 * 25,000m
3/ d low temperature multiple-effect distillation sea water desalting device.
Method for desalting seawater has a lot, but the current situation in present international desalination technology market has highlighted the advantage of reverse osmosis technology RO and low-temperature multi-effect level pipe spray falling-film distillation technology MED.Because present international desalination technology just develops towards the maximization direction, according to the bid rule, does not have achievement can't come into the market to participate in the competition, promptly desalination technology market threshold is more and more higher.And the investment, addressing, product water transmission ﹠ distribution etc. of research and development large-scale plant all face very big difficulty, and the research and development risk is conspicuous.Yet these two kinds of technology that in fact, account for main advantage on the present world market also all have the limitation of oneself.Reverse osmosis technology depends primarily on membrane technique, and reverse osmosis technology may face such as sea pollution, some difficulties that are difficult to overcome such as winter temperature is on the low side in the coastal especially northern coastal application of China; Reverse osmosis membrane is generally 3-5 work-ing life, and the depleted reverse osmosis membrane is difficult to degraded, to ecotope and protect totally unfavorable.And shell and tube low temperature multiple-effect distillation sea water desalting technology generally adopts the good metal of sea water corrosion resistant as the heat exchange material, so plant investment is big, fresh water cost height, and this is the huge obstacle of its widespread use.
In addition, in the desalination technology large scale development, packaged unit also has many market requirements, this is because large-scale plant can not cover all fresh water demands, as electric power industry development, large electric power plant unit single-machine capacity The Enlargement Tendency is fairly obvious on the one hand, be that the master is main to 60-100 ten thousand kW excessively by 300,000 kW, but do not hinder the development and the application of small-sized efficient distributed power source, energy-efficient small-sized sea water desaltination and high purity water preparation must have its market requirement.At first the coal-fired plant boiler supplementary feed is exactly a good market requirement, secondly island, naval vessel, ocean, coastal tourist attractions and other are to the high industrial enterprise of fresh water quality requirements etc., and key is that sea water desalinating plant is energy-efficient, technology reliable, cost can be accepted.Therefore, from the packaged unit starting, development of new cogeneration effect distillation seawater desalinating device of multi solves thermal power plant self problem of water consumption and satisfies demands such as island, naval vessel is a technology that realization meaning and market outlook are arranged very much.
For small-sized sea water desalinating plant, to adopt and on manufacturing cost and plant efficiency, all have a greatly reduced quality based on the tube shell type structure of metallic substance, therefore small-sized sea water desalinating plant research and development need to break through this traditional design concept.The traditional mode of shell and tube heat exchanger has mainly been continued to use in the research and development of more domestic small-sized distillation seawater desalinating devices, the device manufacturing process and the standard that are adopted are relatively backward, make the thermomechanical property of these devices be difficult to effectively be improved, make the water cost and be difficult to especially compete with large-scale plant.
In fact because mindset and custom, one mentions efficient distillation seawater desalination, people expect utilizing the superior metal of sea water corrosion resistant as the heat exchange material naturally, but the metallic substance of these seawater corrosion resistances is generally relatively more expensive, cause the cost of sea water desalinating plant higher, and on the other hand, because device is just in order to produce the daily required fresh water of people, cost is too high to be applied it will to meet difficulty.Moreover, the simple desalination technology that imitates Overseas Company, on technology and state of the art, be difficult to surmount them, therefore the desalination technology that has independent intellecture property for exploitation, the present invention proposes to substitute traditional metal heat exchange material with plastics film, adopt welding between the film, equidistant silk ribbon stretch-draw or keel support, make film bundle heat-exchanging component, adopt seawater falling-film distillation technology, this makes multiple-effect distillation sea water desalting and the high purity water preparation facilities produced according to the present invention have plate-type heat exchanger heat transfer efficiency height, the advantage of compact construction, owing to adopt nonmetallic plastic film material, material price and usage quantity all are starkly lower than metallic substance, therefore apparatus cost can reduce significantly, will greatly promote the competitiveness of product in market.The technical scheme of utilizing the present invention to propose, can be from having the packaged unit research and development starting of certain market outlook, progressively forming one is the industrial chain of the novel sea water desalinization technology of feature with the present invention, helps us to break the general layout that international desalination technology is offshore company's monopolization.
What deserves to be mentioned is that National Aquatics Center pneumatic die cushion structure (the Water Cube) is exactly ETFE (tetrafluoroethylene) the plastics film manufacturing of adopting 50-200 μ m.According to foreign data, can reach more than 25 years the work-ing life of the membrane structure product of plastics film manufacturing.
Summary of the invention
The purpose of this invention is to provide the energy-conserving and environment-protective that market presses for, with low cost, safe and reliable a kind of film-shell type multiple-effect film-reducing distillation sea-water desalinating device.It is characterized in that utilizing plastics film as the heat exchange material, substitute traditional metal heat exchange material, make film bundle heat-exchanging component, vaporizer adopts the multiple-effect distillation sea water desalting and the high purity water of putamina formula structure to prepare equipment.
It is that the N single-effect evaporator 3 that is made of 2 series connection of N film tread assembly is installed in housing 1 that described multiple-effect distillation sea water desalting and high purity water prepare equipment, and and condenser 5 series connection, at each water spraying tray 4 is set above the film tread assembly 2, housing 1 top at condenser 5 ends connects vacuum system 6, and at bottom connection cyclic salt water pump 7, the water spraying tray 4 on vaporizer 3 tops delivered to circulating brine by cyclic salt water pump 7; In housing 1 bottom strong brine emptying pump 9 is set, the rising pipe of this pump is connected to heat exchanger 10, and the discharge system; The rising pipe of sea-water pump 11 is connected to heat exchanger 10, delivers to the water spraying tray 4 above the condenser 5 again, connects product water pump 8 in film tread assembly 2 lower ends as condenser 5, and the rising pipe of this pump is connected to heat exchanger 10, and delivers to water tank or municipal water supply system; Connect condensate pump 12 in first lower end of imitating film tread assembly 2, condensed water and quilt are sent back to thermal source and are absorbed heat again.
Thicker end film 15 secluding film bundles two sidewinds can be used in described film tread assembly 2 sides, and end film 15 can adopt welding process to be fixed on the back up pad 16 of housing 1.
Described N film tread assembly 2 is placed on the 1st in the housing 1 respectively and imitates to N effect container.Housing 1 can be designed to rectangular parallelepiped, also can be designed to forms such as right cylinder or hexahedron, decides on actual conditions.
Coexist the last of housing 1 of the film tread assembly 2 of imitating as the condensation film tread assembly 2 of condenser 5 and N imitated in container unit, and promptly their operating pressure equates.
Thickness 50 to the 250 μ m of described plastics film as the heat exchange material, and less than the sheet material of 0.5mm.
The temperature range of described heat exchanger 10 is to imitate temperature from envrionment temperature to end.
The Heating temperature scope of described vaporizer 3 is within 110 ℃, for seawater calcium sulfate is separated out and the scope of the permission working temperature defined of selected plastics.
The invention has the beneficial effects as follows and adopt film as after the heat exchange material, owing to have disturbance unavoidably in vapor condenses and the evaporation of seawater process, film can fluctuate thereupon, therefore multiple-effect distillation sea water desalting of the present invention and high purity water preparation facilities are not prone to the scale formation that shell and tube heat exchanger usually occurs, this necessarily helps simplifying sea water preprocessing technology, further reduces the fresh water cost.
In addition, as the heat exchange material, the manufacturing process that makes device is than much simple with the sea water desalinating plant of metal heat exchange material with plastics film, and this also helps reducing equipment manufacturing cost.Owing to adopt plastics film as the heat exchange material, it is aging or damage the recyclable and regeneration in back, compares other desalination technology, the environmental influence minimum that it causes.
Description of drawings
Fig. 1 is a putamina formula effect distillation seawater desalinating device of multi schema.
Fig. 2 is a putamina formula multiple-effect distillation device structural representation.
Fig. 3 is a film tread assembly structural representation.
Fig. 4 is stretch-draw of film silk ribbon or spine support structure synoptic diagram.
Embodiment
The invention provides the energy-conserving and environment-protective that market presses for, with low cost, safe and reliable a kind of film-shell type multiple-effect film-reducing distillation sea-water desalinating device.In putamina formula effect distillation seawater desalinating device of multi schema shown in Figure 1, this device is to utilize plastics film as the heat exchange material, substitutes traditional metal heat exchange material, thickness 50 to the 250 μ m of plastics film, and less than the sheet material of 0.5mm.
In Fig. 1, at housing 1 N relatively independent container is set, independently in the container N film tread assembly 2 is being installed respectively, series connection constitutes vaporizer 3 then, and and condenser 5 series connection, film tread assembly 2 is placed on imitating in the container unit of imitating to N-1 from first in the housing 1 separately, and the film tread assembly 2 that N is imitated and the film tread assembly 2 as condenser 5 coexist in the last container unit of housing 1; The pressure of the container unit of imitating from first effect to N of housing 1 progressively reduces, and steam, salt solution and product fresh water flow automatically by imitating under this differential pressure action therebetween.At each water spraying tray 4 is set above the film tread assembly 2, connects vacuum system 6 on housing 1 top of condenser 5 ends, and connect cyclic salt water pump 7 in the bottom, the water outlet of this pump is connected to the water spraying tray 4 of each single-effect evaporator 3 in the vaporizer 3; Last evaporator bottom at housing 1 also connects strong brine emptying pump 9, and its rising pipe is connected to heat exchanger 10, and the discharge system; The rising pipe of sea-water pump 11 also is connected to heat exchanger 10, and be connected to water spraying tray 4 above the condenser 5, connect product water pump 8 in film tread assembly 2 lower ends as condenser 5, the rising pipe of this pump connects heat exchanger 10, and water tank or municipal water supply system are delivered in water outlet; Lower end at first step film tread assembly 2 connects condensate pump 12.
This device brief introduction of work principle is as follows: the workflow of sea water desalinating plant of the present invention as shown in Figure 1.Film tread assembly 2 shown in Figure 3 is arranged in the housing 1 of each single-effect evaporator 3 and condenser 5 compositions.Each cross-sectional structure of imitating of vaporizer can be with reference to figure 2 designs.
In Fig. 1, low pressure heating steam (110 ℃ of temperature are following) enters vaporizer 3 first and imitates condensation heat, heating film opposite side falling liquid film mobile salt solution, and make it to produce secondary steam.Condensed water returns to the thermal source heat absorption by condensate pump 12.
Film tread assembly structural representation as shown in Figure 3, film support and stretching mode and material have many, do not enumerate one by one here, Figure 4 shows that the stretch-draw and the support component of a typical precast construction.
The film of film bundle 2 is by equidistant silk ribbon 14 stretch-draw (can with reference to as shown in Figure 4 make), and the available plastics tubing 13 in film bunchy top portion and bottom supports, can be according to its length and film bundle inside pressure, in the suitable position stretch-draw of the plastics tubing outside, to guarantee film bundle contour structures.Silk ribbon stretch-draw is arranged on the high-tension side of film, therefore because action of pressure can form film bundle structure shown in Figure 3.Keel support the low-tension side that then should be arranged on film.
Thicker end film 15 secluding film bundles two sidewinds can be used in film tread assembly side, and end film 15 can adopt welding process etc. to be connected and fixed on the back up pad 16 of housing 1.
Seawater is at first delivered to heat exchanger 10 by sea-water pump 11, heat exchanger 10 is in (envrionment temperature is imitated the vaporization temperature scope with the end) preheating, the water spraying tray 4 that enters top in the condenser 5 then is evenly distributed on the film tread assembly 2 of vertical layout, flow (as shown in Figure 3) by the gravity falling liquid film, the N of condenser/evaporator 3 ends is imitated the secondary steam that film tread assembly 2 produces, and self obtains further preheating.Owing to be dissolved with certain oxygen in the seawater, for reducing corrosion, the temperature that should as far as possible seawater preheating be reached capacity is so that oxygen (noncondensable gas) is separated out and extracted out by vacuum system 6.Seawater after the circulation strong brine of final stage mixes, is delivered to the water spraying tray 4 at the tops at different levels of vaporizer 3 in condenser 5 bottoms by cyclic salt water pump 7, salt solution flows (as shown in Figure 3) at film bundle surface falling liquid film.The vapor condenses of film opposite side adds hot salt brine, produces secondary steam.Secondary steam enters next stage as heating steam, so multi-effect distilling can effectively reduce steam consumption, the water generation ratio of raising device.
The strong brine of every effect flows automatically by imitating under the pressure difference effect that the temperature difference between at different levels determines, and the certain secondary steam of dilatation flash distillation, secondary steam can evaporate the same being utilized effectively of secondary steam that produces with the above-mentioned salt solution of respectively imitating, said process carries out successively, strong brine to last evaporator by strong brine emptying pump 9 discharge systems.
Similar with strong brine, each condensed water of imitating also is to flow automatically and the dilatation flash distillation by imitating, and secondary steam also can be utilized effectively, and the condensed water of each effect is compiled up to last evaporator by imitating, and is delivered to water tank by product fresh water pump 8 in condenser 5.
It is emphasized that all the other are proven technique except that film proposed by the invention and special complete processing thereof, therefore essence of the present invention is the change of sea water desalinating plant heat exchange material, has very high technical feasibility.
Above-mentioned multiple-effect falling film distil process flow process, engineering plastics have good strength characteristics, and heatproof, anti-corrosion, moisture-proof characteristic especially have superior gas barrier to water vapour.Prepare the heat exchange material of equipment as sea water desaltination and high purity water, film thickness is vital parameter.In general, the thermal conductivity of engineering plastics is lower, and this is the biggest obstacle of plastic material as sea water desaltination heat exchange material.If too thick, heat transfer property is undesirable, will inevitably influence it and apply, and too thin heat transfer meeting improves greatly, but intensity and work-ing life may not be satisfied requirement of engineering.
Film is a kind of two dimensional form of polymkeric substance, it is characterized in that surface-area and volume ratio are very big, and according to foreign literature, general thickness is called film less than the film of 250 μ m, greater than the plate that is called of this thickness.It is considered herein that the plastics of thickness below 0.5mm, especially modified plastics all can be used as the heat exchange material of sea water desaltination, but preferably adopt thinner plastics film heat exchange material, can improve heat transfer property on the one hand, can reduce the usage quantity of heat exchange material on the other hand.
According to thermal conduction study, the heat transfer property of thin heat exchange material will be higher than common engineering heat exchange material heat transfer coefficient several times, especially modified plastics, and this point has very important significance for the present invention.In sum, can find more superior modified film plastics of heat transfer property and suitable thickness fully.
Intend the multiple-effect falling film distil process according to the present invention, vertically the film both sides of arranging are carried out vapor condenses heat release and seawater falling film evaporation endothermic process (as shown in Figure 3) respectively.Because film surface seawater wettability is very big to the performance impact of device, therefore, the seawater falling liquid film side surface of film can be made hair side or modification, to improve the adsorptive power of film to seawater for improving wettability.And the condensed water of vapor condenses side should break away from heat exchange surface as early as possible, can increase substantially the heat transfer property of condensing process, therefore the vapor condenses side can be made the light face, is convenient to condensed water and comes off.
What need additional description is, owing to adopt film as the heat exchange material, owing to have disturbance unavoidably in vapor condenses and the evaporation of seawater process, film can fluctuate thereupon, therefore multiple-effect distillation sea water desalting of the present invention and high purity water preparation facilities are not prone to the scale formation that shell and tube heat exchanger usually occurs, also be difficult for continuing to thicken to hinder conducting heat even if fouling occurs, this can simplify sea water preprocessing technology to a certain extent, further reduces the fresh water cost.
In addition, as the heat exchange material, the manufacturing process that makes device is than much simple with the sea water desalinating plant of metal heat exchange material with plastics film, and this also helps reducing equipment manufacturing cost.Owing to adopt plastics film as the heat exchange material, therefore the aging heat exchange material that damages that reaches of recyclable sea water desalinating plant is compared other desalination technology, the environmental influence minimum that it causes.
The contrast of Chinese and English noun:
Multi-effect distilling---Multi-Effect Distillation (MED)
Multistage flash evaporation---Multi-Stage Flash (MSF)
(annotate: the new ideas for the present invention's proposition, all the other are the key concept commonly used of sea water desaltination and heat-exchange equipment except that putamina and film bundle.The shell and tube heat-exchange equipment is also referred to as " shell-and-tube " heat-exchange equipment, and plate-type heat-exchange equipment is also referred to as " board-like " or " shell-and-plate " heat-exchange equipment.)
Claims (8)
1. film-shell type multiple-effect film-reducing distillation sea-water desalinating device, it is characterized in that, utilize the little characteristics of pressure reduction between the multiple-effect distillation device effect, adopt plastics film as the heat exchange material, substitute traditional metal heat exchange material, make the film tread assembly, the film bundle adopts welding, silk ribbon stretch-draw, keel support manufacturing by two-layer film; A plurality of film bundles are equidistantly placed, and make film bundle heat-exchanging component with the end film by welding; The end film is connected with housing, but the seawater and the fresh water of secluding film bundle both sides; Certain container unit that the film tread assembly is placed on housing constitutes 1st effective evaporator, and the multiple-effect distillation sea water desalting and the high purity water that are made of putamina formula structure a plurality of vaporizers prepare equipment.
2. according to the described film-shell type multiple-effect film-reducing distillation sea-water desalinating device of claim 1, it is characterized in that, described effect distillation seawater desalinating device of multi is that the N single-effect evaporator (3) that is made of N film tread assembly (2) series connection is installed in housing (1), and and condenser (5) series connection, at each water spraying tray (4) is set above the film tread assembly (2), housing (1) top at condenser (5) end connects vacuum system (6), and at bottom connection cyclic salt water pump (7), the water spraying tray (4) on vaporizer (3) top delivered to circulating brine by cyclic salt water pump (7); In housing (1) bottom strong brine emptying pump (9) is set, the rising pipe of this pump is connected to heat exchanger (10), and the discharge system; The rising pipe of sea-water pump (11) is connected to heat exchanger (10), deliver to the water spraying tray (4) above the condenser (5) again, connect product water pump (8) in film tread assembly (2) lower end as condenser (5), the rising pipe of this pump is connected to heat exchanger (10), and delivers to water tank or municipal water supply system; Connect condensate pump (12) in first lower end of imitating film tread assembly (2), condensed water and quilt are sent back to thermal source and are absorbed heat again.
3. according to claim 1 or 2 described film-shell type multiple-effect film-reducing distillation sea-water desalinating devices, it is characterized in that, thicker end film (15) secluding film bundle two sidewinds can be used in described film tread assembly (2) side, and end film (15) can adopt welding process to be fixed on the back up pad (16) of housing (1).
4. according to the described film-shell type multiple-effect film-reducing distillation sea-water desalinating device of claim 2, it is characterized in that, described N film tread assembly (2) is placed on the 1st in the housing (1) respectively and imitates to N effect container, and housing (1) can be designed to rectangular parallelepiped, also can be designed to forms such as right cylinder or hexahedron.
5. according to the described film-shell type multiple-effect film-reducing distillation sea-water desalinating device of claim 2, it is characterized in that, coexist the last of housing (1) of the film tread assembly (2) that described condensation film tread assembly (2) as condenser (5) and N are imitated imitated in container unit, and promptly their operating pressure equates.
6. according to the described film-shell type multiple-effect film-reducing distillation sea-water desalinating device of claim 1, it is characterized in that, thickness 50 to the 250 μ m of described plastics film as the heat exchange material, and less than the sheet material of 0.5mm.
7. according to the described film-shell type multiple-effect film-reducing distillation sea-water desalinating device of claim 2, it is characterized in that the temperature range of described heat exchanger (10) is to imitate temperature from envrionment temperature to end.
8. according to the described film-shell type multiple-effect film-reducing distillation sea-water desalinating device of claim 1, it is characterized in that the Heating temperature scope of described vaporizer (3) is within 110 ℃, for seawater calcium sulfate is separated out and the scope of the permission working temperature defined of selected plastics.
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| CN2007100631973A CN101012071B (en) | 2007-01-31 | 2007-01-31 | Film-shell type multiple-effect film-reducing distillation sea-water desalinating device |
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| CN2007100631973A CN101012071B (en) | 2007-01-31 | 2007-01-31 | Film-shell type multiple-effect film-reducing distillation sea-water desalinating device |
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| WO2010079148A1 (en) | 2009-01-12 | 2010-07-15 | Heatmatrix Group B.V. | Thermosiphon evaporator |
| CN101885548A (en) * | 2010-05-26 | 2010-11-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Low-temperature multi-effect seawater desalting inter-regenerative multi-stage spraying raw water supply system |
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| CN101264947B (en) * | 2008-04-30 | 2011-05-11 | 华北电力大学 | Segment water-water preheating multiple-effect distillation sea water desalination technical process |
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| CN112062374A (en) * | 2020-06-05 | 2020-12-11 | 北京清建能源技术有限公司 | Multi-effect distillation and reverse osmosis hot purified water preparation device, system and method |
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| WO2010079148A1 (en) | 2009-01-12 | 2010-07-15 | Heatmatrix Group B.V. | Thermosiphon evaporator |
| CN102107119B (en) * | 2009-12-23 | 2013-07-31 | 吕晓龙 | Multiple-effect membrane distillation device and method |
| CN102107119A (en) * | 2009-12-23 | 2011-06-29 | 吕晓龙 | Multiple-effect membrane distillation device and method |
| CN101885548A (en) * | 2010-05-26 | 2010-11-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Low-temperature multi-effect seawater desalting inter-regenerative multi-stage spraying raw water supply system |
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| CN101955240B (en) * | 2010-09-28 | 2013-05-01 | 浙江天达环保股份有限公司 | System for desalinating sweater by utilizing low-temperature low-pressure steam generated by smoke waste heat |
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| CN102344218A (en) * | 2011-06-29 | 2012-02-08 | 哈尔滨汽轮机厂辅机工程有限公司 | Seawater desalination system using secondary steam for preheating |
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| CN103508501A (en) * | 2013-10-02 | 2014-01-15 | 大连理工大学 | Salt water circulating multiple-effect evaporation seawater desalination device |
| CN104118960A (en) * | 2014-08-09 | 2014-10-29 | 孔令斌 | Hot-air multi-stage heating sea water desalting device |
| CN104118960B (en) * | 2014-08-09 | 2016-01-20 | 孔令斌 | A kind of sea water desalinating plant of warm air Multi-stage heating |
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| CN110563234A (en) * | 2019-09-02 | 2019-12-13 | 龚建国 | low-energy-consumption seawater desalination system and method |
| CN110563234B (en) * | 2019-09-02 | 2021-12-03 | 衡阳远通物流有限公司 | Low-energy-consumption seawater desalination system and method |
| CN112062374A (en) * | 2020-06-05 | 2020-12-11 | 北京清建能源技术有限公司 | Multi-effect distillation and reverse osmosis hot purified water preparation device, system and method |
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