CN101723476B - Seawater desalination device employing solar energy and vapor compressing distillation - Google Patents

Seawater desalination device employing solar energy and vapor compressing distillation Download PDF

Info

Publication number
CN101723476B
CN101723476B CN2010103008755A CN201010300875A CN101723476B CN 101723476 B CN101723476 B CN 101723476B CN 2010103008755 A CN2010103008755 A CN 2010103008755A CN 201010300875 A CN201010300875 A CN 201010300875A CN 101723476 B CN101723476 B CN 101723476B
Authority
CN
China
Prior art keywords
solar energy
vacuum pump
seawater desalination
links
desalination device
Prior art date
Application number
CN2010103008755A
Other languages
Chinese (zh)
Other versions
CN101723476A (en
Inventor
代彦军
夏佰林
赵耀
李勇
王如竹
Original Assignee
上海交通大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海交通大学 filed Critical 上海交通大学
Priority to CN2010103008755A priority Critical patent/CN101723476B/en
Publication of CN101723476A publication Critical patent/CN101723476A/en
Application granted granted Critical
Publication of CN101723476B publication Critical patent/CN101723476B/en

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/124Water desalination
    • Y02A20/126Water desalination characterized by the method
    • Y02A20/128Evaporation methods, e.g. distillation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/124Water desalination
    • Y02A20/126Water desalination characterized by the method
    • Y02A20/128Evaporation methods, e.g. distillation
    • Y02A20/129Evaporation methods, e.g. distillation using solar energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/124Water desalination
    • Y02A20/138Water desalination powered by a renewable energy source
    • Y02A20/142Water desalination powered by a renewable energy source the source being solar thermal or photovoltaics
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/10Relating to general water supply, e.g. municipal or domestic water supply
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation

Abstract

The invention relates to a seawater desalination device employing solar energy and vapor compressing distillation, belonging to the technical field of solar energy. The seawater desalination device comprises a solar collector, a first circulating pump, a heat exchanger, an evaporative condenser, a blower fan and a vacuum pump mechanism, wherein the solar collector is connected with the first circulating pump; the heat exchanger is respectively connected with the solar collector and the evaporative condenser; the evaporative condenser is connected with the blower fan; the vacuum pump mechanism is connected with the evaporative condenser; the evaporative condenser comprises an evaporation chamber and a condensation chamber; the condensation chamber is embedded into the evaporation chamber; the evaporation chamber is connected with the heat exchanger; and the position where the condensation chamber is embedded into the evaporation chamber is provided with a heat exchanging wall surface. The invention desalinates seawater in the mode of combining the solar energy and a low-pressure vapor compressing distillation seawater desalination method, reduces the pretreatment cost of seawater or brackish water, simplifies the mechanism and is also conveniently realized. The whole device is operated at the low pressure, reduces the operating temperature and improves the heat efficiency by employing the evaporative condenser to recover condensation heat.

Description

Seawater desalination device employing solar energy and vapor compressing distillation

Technical field

What the present invention relates to is a kind of device of technical field of solar, in particular a kind of seawater desalination device employing solar energy and vapor compressing distillation.

Background technology

In the face of serious day by day worldwide water shortage problem, the exploitation desalination technology solves a kind of selection that water scarcity has become the coastland by the ocean.The method that seawater or brackish water are desalinated is a lot, but conventional method all needs to consume a large amount of energy as distillation method, reverse osmosis method and ion exchange method etc.Along with the sea water desaltination installed capacity enlarges rapidly, will bring a series of environmental problem.Only be example with the energy consumption, 3500 ten thousand stere desalination waters are produced in the whole world approximately daily at present, annual about 300,000,000 tons of the crude oil that consume.The international petroleum price rises steadily, and environmental problem is paid close attention to day by day and strengthened, and becomes the obstacle that sea water desaltination further develops.Therefore seeking new forms of energy carries out the inevitable choice that sea water desaltination will become various countries, and sun power becomes people's preferential selection with its unique advantage.

Find through literature search prior art, Chinese patent application number: 200910016942.8, this technology discloses a kind of solar energy sea water desalination apparatus, comprise: the electron tubes type solar energy collector, combined evaporative condenser, sea water evaporator, water vapor condensation device, DRY SCROLL VACUUM PUMP, heat pump circulating system, fresh water jar, strong brine jar, sieve plate and the reducing valve that have the hot and cold water tank, though reclaimed heat of condensation, but increased the heat pump part, cause energy consumption to increase, and device become complicated more.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, a kind of seawater desalination device employing solar energy and vapor compressing distillation is provided, utilizes sun power and the low pressure distillation method of calming the anger that processing is desalinated in sea water desaltination, simplified mechanism, save heat pump circulating system, utilized sun power more efficiently.

The present invention is achieved through the following technical solutions: the present invention includes: solar energy collector, first recycle pump, interchanger, vaporizer-condenser, blower fan and vacuum pump mechanism, wherein: solar energy collector links to each other with first recycle pump, interchanger links to each other with vaporizer-condenser with solar energy collector respectively, vaporizer-condenser links to each other with blower fan, and vacuum pump mechanism links to each other with vaporizer-condenser.

Described vaporizer-condenser comprises: evaporation cavity and condensation chamber, wherein: condensation chamber embeds and is arranged in the evaporation cavity, and evaporation cavity links to each other with interchanger.

Described condensation chamber embeds the evaporation cavity place and is provided with the heat exchange wall.

Described blower fan is arranged in the steam flow channel between evaporation cavity and the condensation chamber.

Described solar energy collector is vacuum tube collector or flat heat collecting dress device.

Described interchanger is a fixed tube sheet heat exchanger.

Described blower fan is an aerofoil fan.

Described vacuum pump mechanism comprises: first vacuum pump and second vacuum pump, and wherein: first vacuum pump links to each other with evaporation cavity, and second vacuum pump links to each other with condensation chamber.

The present invention has adopted sun power and the low pressure distillation seawater desalination method bonded mode of calming the anger to carry out sea water desaltination, low to water quality requirement, reduced the pre-treatment cost of seawater or brackish water, saved heat pump circulating system, simplified mechanism, simultaneously do not need water coolant, also do not need steam, it is convenient to realize.Whole device under low pressure moves, reduced service temperature, and adopt vaporizer-condenser to reclaim heat of condensation, improved thermo-efficiency, therefore can utilize sun power efficiently, reduce the possibility of system's fouling simultaneously, preferably resolve sea water desalinating plant and sun power and organically combine and traditional serious problem of distillation method fouling of calming the anger.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.

As shown in Figure 1, present embodiment comprises: solar energy collector 1, first recycle pump 2, first valve 3, interchanger 4, vaporizer-condenser 5, blower fan 6 and vacuum pump mechanism 7, wherein: solar energy collector 1, first valve 3 and first recycle pump 2 link to each other successively, interchanger 4 is imported and exported with the cycle fluid of solar energy collector 1 respectively and is linked to each other with the import and export of vaporizer-condenser 5, vaporizer-condenser 5 links to each other with blower fan 6, and vacuum pump mechanism 7 links to each other with vaporizer-condenser 5.Solar energy collector 1 is vacuum tube collector or flat heat collecting dress device in the present embodiment, and interchanger 4 is fixed tube sheet heat exchanger.

Vaporizer-condenser 5 comprises: evaporation cavity 8, condensation chamber 9 and baffle plate 10, wherein: condensation chamber 9 embeds in the evaporation cavity 8, the place that condensation chamber 9 embeds evaporation cavities 8 is provided with the heat exchange wall that the copper alloy that is used for recovery of heat is made, baffle plate 10 is arranged on the edge of evaporation cavity 8 and condensation chamber 9, seawater is evenly flowed down along the heat exchange wall of evaporation cavity 8 one sides, seawater evenly flows down along heat exchange wall film forming shape in evaporation cavity 8, in dirty process, realize evaporation, steam is along the heat exchange wall condensation of condensation chamber 9 one sides, heat of condensation is supplied with evaporation cavity 8 by the heat exchange wall, thereby realize efficient recovery of heat.

Second recycle pump 12 links to each other with evaporation cavity 8, realizes that seawater recycles, and T-valve 11 links to each other with second recycle pump 12, evaporation cavity 8 and interchanger 4 respectively, and temperature, pressure table 13 is arranged on the top of condensation chamber 9.

Blower fan 6 adopts the single flow aerofoil fan, seals in the steam flow channel that is arranged between evaporation cavity 8 and the condensation chamber 9.

Vacuum pump mechanism 7 comprises: first vacuum pump 14, second valve 15, the 3rd valve 16 and second vacuum pump, 17, the first vacuum pumps 14 link to each other with evaporation cavity 8 by second valve 15, and second vacuum pump 17 links to each other with condensation chamber 9 by the 3rd valve 16.

During use, solar energy collector 1 absorbs solar thermal energy, and the thermal-arrest medium is given seawater by interchanger 4 with thermal exchange through 2 circulations of first recycle pump.Seawater through heating enters into evaporation cavity 8 by T-valve 11, because of pressure reduces vaporization, the steam that produces is by the adiabatic compression of blower fan 6, be admitted to condensation chamber 9 after pressurize, temperature and the enthalpy again, the seawater that the latent heat that condensation discharges is supplied with in the evaporation cavity 8 by heat transfer wall uses, make the seawater in the evaporation cavity 8 continue evaporation, water of condensation is discharged by second vacuum pump 17 in condensation chamber 9.The concentrated seawater part of evaporation is not carried out circulating and evaporating again after second recycle pump 12 and seawater mix in T-valve 11 fully, and another part concentrated seawater is then by 14 discharges of first vacuum pump.The temperature that records vaporizer-condenser 5 by temperature, pressure table 13 is between 50 ~ 60 ℃.The topmost characteristics of this distillating method of calming the anger are exactly that the latent heat that reclaims in the condensation process uses to supply with evaporation of seawater, have improved efficiency of utilization.It also has does not simultaneously need water coolant, low to water quality requirement, the simple and transformation efficiency advantage of higher of sea water preprocessing.Saved heat pump circulating system in the present embodiment, made the simple more easy handling of whole device.

Claims (6)

1. seawater desalination device employing solar energy and vapor compressing distillation, comprise: solar energy collector, first recycle pump, interchanger, vaporizer-condenser, blower fan and vacuum pump mechanism, it is characterized in that: solar energy collector links to each other with first recycle pump, interchanger links to each other with vaporizer-condenser with solar energy collector respectively, vaporizer-condenser links to each other with blower fan, and vacuum pump mechanism links to each other with vaporizer-condenser; Described vaporizer-condenser comprises: evaporation cavity and condensation chamber, and condensation chamber embeds and is arranged in the evaporation cavity, and evaporation cavity links to each other with interchanger, and condensation chamber embeds the evaporation cavity place and is provided with the heat exchange wall.
2. seawater desalination device employing solar energy and vapor compressing distillation according to claim 1 is characterized in that, described solar energy collector is vacuum tube collector or flat heat collecting dress device.
3. seawater desalination device employing solar energy and vapor compressing distillation according to claim 1 is characterized in that described interchanger is a fixed tube sheet heat exchanger.
4. seawater desalination device employing solar energy and vapor compressing distillation according to claim 1 is characterized in that described blower fan is arranged at the steam flow channel between evaporation cavity and the condensation chamber.
5. seawater desalination device employing solar energy and vapor compressing distillation according to claim 1 is characterized in that described blower fan is an aerofoil fan.
6. seawater desalination device employing solar energy and vapor compressing distillation according to claim 1 is characterized in that, described vacuum pump mechanism comprises: first vacuum pump and second vacuum pump, and wherein: first vacuum pump links to each other with evaporation cavity, and second vacuum pump links to each other with condensation chamber.
CN2010103008755A 2010-01-28 2010-01-28 Seawater desalination device employing solar energy and vapor compressing distillation CN101723476B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010103008755A CN101723476B (en) 2010-01-28 2010-01-28 Seawater desalination device employing solar energy and vapor compressing distillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010103008755A CN101723476B (en) 2010-01-28 2010-01-28 Seawater desalination device employing solar energy and vapor compressing distillation

Publications (2)

Publication Number Publication Date
CN101723476A CN101723476A (en) 2010-06-09
CN101723476B true CN101723476B (en) 2011-07-20

Family

ID=42445132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010103008755A CN101723476B (en) 2010-01-28 2010-01-28 Seawater desalination device employing solar energy and vapor compressing distillation

Country Status (1)

Country Link
CN (1) CN101723476B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI422528B (en) * 2010-08-20 2014-01-11 Phile Yang Solar vacuum desalinator for sea water
CN102219273B (en) * 2011-04-25 2013-06-19 大连理工大学 Solar and thermocompression vapor-compression distillation type water purifying device
CN102718275B (en) * 2012-06-26 2013-06-19 徐军 Double-barrel layered solar seawater desalting device
CN103011320B (en) * 2012-12-18 2014-03-26 上海交通大学 Small high-temperature multistage regenerative type vacuum glass tube solar seawater desalting device
GB2511075A (en) * 2013-02-22 2014-08-27 Donald Earl Spence Desalination Apparatus
CN104478025B (en) * 2014-11-24 2016-04-20 中国科学院广州能源研究所 Without power consumption sun power pressure vapour boiling Distallation systm
CN104628067A (en) * 2014-12-26 2015-05-20 皇明太阳能股份有限公司 Solar-powered seawater desalination device, stove combined device and using method thereof
CN105836831B (en) * 2015-01-14 2019-07-26 北京朗新明环保科技有限公司 Solar energy film waste water evaporation concentration device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1125197A (en) * 1994-09-13 1996-06-26 陶国华 Automatic control circulating distilled water and hot water machine
CN101244849A (en) * 2008-03-28 2008-08-20 苏润西 Solar energy sea water desalination apparatus
CN201151676Y (en) * 2008-01-08 2008-11-19 上海大学 Solar energy sea water desalination apparatus of intrinsic cycle multi-effect evaporation and condensation
CN201201907Y (en) * 2008-04-01 2009-03-04 上海理工大学 Natural vacuum low temperature distillation sea water desalting apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1125197A (en) * 1994-09-13 1996-06-26 陶国华 Automatic control circulating distilled water and hot water machine
CN201151676Y (en) * 2008-01-08 2008-11-19 上海大学 Solar energy sea water desalination apparatus of intrinsic cycle multi-effect evaporation and condensation
CN101244849A (en) * 2008-03-28 2008-08-20 苏润西 Solar energy sea water desalination apparatus
CN201201907Y (en) * 2008-04-01 2009-03-04 上海理工大学 Natural vacuum low temperature distillation sea water desalting apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2001-70929A 2001.03.21

Also Published As

Publication number Publication date
CN101723476A (en) 2010-06-09

Similar Documents

Publication Publication Date Title
Abdelkareem et al. Recent progress in the use of renewable energy sources to power water desalination plants
Sharon et al. A review of solar energy driven desalination technologies
Giwa et al. Recent advances in humidification dehumidification (HDH) desalination processes: Improved designs and productivity
Banat et al. Desalination by a “compact SMADES” autonomous solarpowered membrane distillation unit
Kalogirou Survey of solar desalination systems and system selection
CN102616973B (en) Method and device for processing high-saline organic wastewater
US7922873B2 (en) Method and apparatus for desalinating water combined with power generation
CN105152252B (en) Comprehensively utilize zero energy consumption sea water desalinating unit of solar energy
Gude et al. Feasibility study of a new two-stage low temperature desalination process
CN201999824U (en) Sea water desalination system combining solar heat pump and air conditioner
CN103387308B (en) Multi-effect membrane distillation-multistage flash evaporation seawater desalination system
Saidur et al. An overview of different distillation methods for small scale applications
CN102642883B (en) System for desalinating seawater by waste heat from power plant
CN100548424C (en) Desalination process and device that Msf distillate drives
CN102219273B (en) Solar and thermocompression vapor-compression distillation type water purifying device
Peñate et al. Seawater reverse osmosis desalination driven by a solar Organic Rankine Cycle: Design and technology assessment for medium capacity range
CN101012071B (en) Film-shell type multiple-effect film-reducing distillation sea-water desalinating device
CN101948148B (en) Energy-saving low-temperature multiple-effect seawater desalting device
CN1194901C (en) Double stage absorptive compressing type high temperature heat pump sea water desalination device
CN201301785Y (en) High-efficiency ocean thermal energy power-generation device
CN101693559B (en) Horizontal solar membrane distiller for vacuum and direct contact
CN1967055A (en) Backheating and heating technology by using residual heat of exhaust steam in steam power cycle
CN101544411B (en) Solar-energy sea water desalination and salt production device
CN101737282B (en) High-efficiency hybrid ocean temperature difference power generating system
CN103265089B (en) High temperature high efficiency multi-effect seawater distillation desalination apparatus and method

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model