CN101012071B - Membrane shell multi-effect falling film distillation seawater desalination device - Google Patents
Membrane shell multi-effect falling film distillation seawater desalination device Download PDFInfo
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- CN101012071B CN101012071B CN2007100631973A CN200710063197A CN101012071B CN 101012071 B CN101012071 B CN 101012071B CN 2007100631973 A CN2007100631973 A CN 2007100631973A CN 200710063197 A CN200710063197 A CN 200710063197A CN 101012071 B CN101012071 B CN 101012071B
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- 239000013535 sea water Substances 0.000 title claims abstract description 70
- 238000004821 distillation Methods 0.000 title claims abstract description 34
- 239000012528 membrane Substances 0.000 title claims abstract description 26
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 19
- 239000011552 falling film Substances 0.000 title claims abstract description 12
- 239000010408 film Substances 0.000 claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims abstract description 16
- 239000013505 freshwater Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 6
- 239000002985 plastic film Substances 0.000 claims abstract description 5
- 229920006255 plastic film Polymers 0.000 claims abstract description 5
- 230000008901 benefit Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 38
- 239000012498 ultrapure water Substances 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract 1
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- 238000011033 desalting Methods 0.000 description 11
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- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005507 spraying Methods 0.000 description 8
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- 238000011161 development Methods 0.000 description 6
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- 239000000047 product Substances 0.000 description 6
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- 238000012827 research and development Methods 0.000 description 5
- 238000001223 reverse osmosis Methods 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 4
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- 230000015572 biosynthetic process Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
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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
- 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
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
本发明公开了属于水处理及海水淡化领域的一种膜壳式多效降膜蒸馏海水淡化装置。利用多效蒸馏装置效间压差小的特点，采用塑料薄膜替代传统的金属换热材料，制成膜束换热组件，从而构成膜壳式结构的多效蒸馏海水淡化及高纯水制备设备。膜束由二层薄膜采用焊接、丝带张拉、龙骨支撑制作；多个膜束等间距放置，与端部薄膜通过焊接制成膜束换热组件；端部薄膜与壳体连接，可隔绝膜束两侧的海水和淡水；膜束组件放置在壳体的某容器单元构成一效蒸发器。塑料薄膜有良好的耐蚀、阻透、强度特性，这种水处理设备容量大小不受任何限制，材料使用量少，其造价将远低于昂贵的金属设备。小型装置可与太阳能及分布式电源结合，因此有极高推广使用价值。
The invention discloses a membrane shell type multi-effect falling film distillation seawater desalination device belonging to the field of water treatment and seawater desalination. Utilizing the characteristics of small pressure difference between effects of multi-effect distillation devices, plastic films are used to replace traditional metal heat exchange materials to make membrane bundle heat exchange components, thus forming multi-effect distillation seawater desalination and high-purity water preparation equipment with membrane shell structure. The membrane bundle is made of two layers of film by welding, ribbon tensioning, and keel support; multiple membrane bundles are placed at equal intervals, and are welded with the end film to form a membrane bundle heat exchange component; the end film is connected to the shell to insulate the membrane The seawater and fresh water on both sides of the bundle; the membrane bundle assembly is placed in a certain container unit of the shell to form an effect evaporator. Plastic film has good corrosion resistance, barrier, and strength characteristics. The capacity of this kind of water treatment equipment is not limited, and the use of materials is small, and its cost will be much lower than that of expensive metal equipment. Small devices can be combined with solar energy and distributed power sources, so they have high promotional value.
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 R0 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 (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100631973A CN101012071B (en) | 2007-01-31 | 2007-01-31 | Membrane shell multi-effect falling film distillation seawater desalination device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100631973A CN101012071B (en) | 2007-01-31 | 2007-01-31 | Membrane shell multi-effect falling film distillation seawater desalination device |
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| Publication Number | Publication Date |
|---|---|
| CN101012071A CN101012071A (en) | 2007-08-08 |
| CN101012071B true CN101012071B (en) | 2010-10-27 |
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| CN2007100631973A Expired - Fee Related CN101012071B (en) | 2007-01-31 | 2007-01-31 | Membrane shell multi-effect falling film distillation seawater desalination device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363833A (en) * | 2013-07-09 | 2013-10-23 | 吕大伟 | Plastic frame for manufacturing heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN102115222A (en) * | 2011-04-01 | 2011-07-06 | 大连海水淡化工程研究中心有限公司 | Seawater falling film evaporator with thin-wall titanium tube |
| 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 |
| CN103112910B (en) * | 2013-01-23 | 2014-04-30 | 陈社庭 | Wastewater treatment tank capable of self-cleaning binding materials and wastewater thermal circulation treatment system |
| CN103508501A (en) * | 2013-10-02 | 2014-01-15 | 大连理工大学 | Salt water circulating multiple-effect evaporation seawater desalination 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 |
| CN112601593B (en) * | 2018-06-08 | 2022-10-28 | 伊弗科恩有限责任公司 | Multi-stage membrane distillation apparatus |
| 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 |
| CN212269517U (en) * | 2020-06-05 | 2021-01-01 | 北京清建能源技术有限公司 | A pure hot distilled water preparation device |
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2007
- 2007-01-31 CN CN2007100631973A patent/CN101012071B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103363833A (en) * | 2013-07-09 | 2013-10-23 | 吕大伟 | Plastic frame for manufacturing heat exchanger |
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