WO2001072639A1 - Appareil de desalinisation - Google Patents

Appareil de desalinisation Download PDF

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Publication number
WO2001072639A1
WO2001072639A1 PCT/JP2001/002784 JP0102784W WO0172639A1 WO 2001072639 A1 WO2001072639 A1 WO 2001072639A1 JP 0102784 W JP0102784 W JP 0102784W WO 0172639 A1 WO0172639 A1 WO 0172639A1
Authority
WO
WIPO (PCT)
Prior art keywords
raw water
evaporator
concentrated
desalination apparatus
desalination
Prior art date
Application number
PCT/JP2001/002784
Other languages
English (en)
Japanese (ja)
Inventor
Yuzo Narasaki
Ichiro Kamiya
Naoyuki Inoue
Kiichi Irie
Toru Tokumaru
Tomoyuki Uchimura
Motoyasu Sato
Original Assignee
Ebara Corporation
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
Priority claimed from JP2000096839A external-priority patent/JP4112771B2/ja
Priority claimed from JP2000096840A external-priority patent/JP4112772B2/ja
Priority claimed from JP2000096837A external-priority patent/JP4140677B2/ja
Application filed by Ebara Corporation filed Critical Ebara Corporation
Priority to AU2001244680A priority Critical patent/AU2001244680A1/en
Publication of WO2001072639A1 publication Critical patent/WO2001072639A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/26—Multiple-effect evaporating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation

Definitions

  • the present invention is a self-contained desalination method that uses solar energy and other heat sources to obtain fresh water (distilled water) from raw water such as seawater, salt-containing groundwater (brine water), and industrial wastewater by evaporation and condensation.
  • the present invention relates to an apparatus, and particularly to a desalination apparatus provided with a control device.
  • this type of desalination apparatus includes a solar heat collector, an evaporator, a raw water supply pump for supplying raw water to the evaporator, and a heat medium connected to the evaporator and the solar heat collector to circulate a heat medium.
  • a heat medium circulation pump for using the heat medium heated by the heat collector as a heat source of raw water in the evaporator, and condensing to receive and condense water vapor generated in the evaporator from the evaporator to form distilled water.
  • the system is equipped with a device, a freshwater drainage pump for discharging manufactured freshwater, a concentrated raw water discharge pump for discharging raw water that has been heated and evaporated in the evaporator, and a vacuum pump for vacuuming the inside of the evaporator.
  • a freshwater drainage pump for discharging manufactured freshwater
  • a concentrated raw water discharge pump for discharging raw water that has been heated and evaporated in the evaporator
  • a vacuum pump for vacuuming the inside of the evaporator.
  • These various pumps and electric devices such as electric valves provided in the supply / discharge flow path of the raw water / the discharge flow path of the fresh water are provided by attaching power supply equipment including solar cells to the desalination apparatus. Usually, they can operate independently without relying on external power.
  • such power supply equipment usually includes a battery and a charge controller for preventing overcharging of the battery, and the generated power is charged through the charge controller.
  • the DC output charged in the battery is supplied to a DC drive electric device such as an electric valve or an AC drive electric device such as a vacuum pump via a DC transformer or a DC Z AC converter.
  • the present invention has been made in view of the above points, and has as its object to provide a desalination apparatus provided with a control device for performing proper operation. Disclosure of the invention
  • the present invention relates to a desalination apparatus, comprising: a solar heat collector; an evaporator including a plurality of evaporators, and the plurality of evaporators connected in a multiple effect relationship; and an evaporator and a solar heat collector.
  • a heat medium circulating circuit circulates a heat medium between the evaporator and the heat medium heated by the solar heat collector to generate heat from the raw water in the evaporator.
  • a condenser for receiving steam from the lowermost evaporator of the evaporator and condensing it into distilled water; a vacuum device for reducing the space in the evaporator of the evaporator to an atmospheric pressure or less; and a desalination device.
  • a power supply circuit including a power supply such as a solar cell for supplying electric power for driving an electric device such as the vacuum device, and an electric power supply to the electric device when a power generation amount of the power supply falls below a predetermined amount.
  • Examples of the electric equipment include, in addition to a vacuum device, a freshwater discharge pump for discharging distilled water produced by a condenser and a concentrated raw water discharge pump for discharging the concentrated raw water.
  • the power generation amount detection device detects that the power generation amount by the power supply has decreased to a predetermined amount or less
  • the power supply to the control device and the vacuum device is performed by the fresh water discharge pump and the concentrated raw water. It is preferable to stop the pump before the drain pump. This is to maintain the operation of the freshwater discharge pump and the concentrated raw water drainage pump as much as possible so that serious problems such as freshwater pollution do not occur.
  • the power generation amount is updated by the power generation amount detection device.
  • the power generation amount detection device When it is detected that the concentration of the raw water is reduced, it is preferable to stop the power supply to the fresh water discharge pump before the concentrated raw water discharge pump. Maintaining the operation of the concentrated raw water discharge pump is important to prevent freshwater contamination from the concentrated raw water.
  • the power supply may be a solar cell
  • the power generation amount detection device may be a pyranometer for detecting the amount of solar radiation or a small solar cell provided separately from the solar cell.
  • the electric equipment includes an electric open / close valve used in a supply / discharge flow path of raw water, and the electric open / close valve is preferably an electric valve that is mechanically closed when power supply is stopped.
  • the present invention also provides a solar heat collector, an evaporator, a raw water supply device for supplying raw water to the evaporator, and a heat medium circulating between the evaporator and the solar heat collector.
  • a heat medium circulation circuit for using the heat medium heated by the heater as a heat source of raw water in the evaporator; and a condensate for receiving and condensing water vapor generated in the evaporator from the evaporator to form distilled water.
  • a heat medium temperature detector for detecting a temperature of a heat medium entering the evaporator from the solar heat collector; a raw water flow controller for controlling a flow rate of raw water supplied from the raw water supply device; A control device is provided that controls the flow rate of raw water supplied to the evaporator by the raw water flow controller and controls the temperature of the hot soot supplied to the evaporator to a predetermined temperature or lower than a predetermined temperature.
  • a desalination apparatus According to this desalination apparatus, efficient heating can be performed by controlling the temperature of the heat medium.
  • the controller controls the raw water flow controller such that when the temperature of the heating medium supplied to the evaporator is equal to or higher than a predetermined temperature, the raw water flow supplied to the evaporator always keeps a predetermined minimum flow. Is preferred.
  • the raw water flow controller is an electric valve, and the control device is configured such that, even though the electric valve is at a predetermined opening, the raw water flow supplied to the evaporator is equal to or less than a predetermined value. It is preferable to judge that the raw water is cut off and stop the operation of the desalination plant.
  • the present invention provides a solar heat collector, an evaporator, a raw water supply device for supplying raw water to the evaporator, and a heat medium circulating between the evaporator and the solar heat collector.
  • a heat medium circulation circuit for using the heat medium heated by the collector as a heat source of raw water in the evaporator; and a heat medium circulation circuit for receiving water vapor generated in the evaporator from the evaporator and condensing it into distilled water.
  • a condenser a concentrated raw water storage tank for storing concentrated raw water that is supplied from a raw water supply device, passes through the evaporator, is heated and generates steam to be concentrated, and stores concentrated raw water in the concentrated raw water storage tank.
  • a concentrated raw water storage amount detector for detecting an amount of the concentrated raw water, wherein the condenser is configured to use the concentrated raw water in the concentrated raw water storage tank as cooling water for the condenser; Before operation, based on the output of the concentrated raw water storage amount detector, if the storage amount of the concentrated raw water is equal to or less than a predetermined amount, the raw water is supplied to the evaporator in advance by the raw water supply device, and the raw water passed through the evaporator.
  • the concentrated raw water storage A desalination apparatus is provided, which is provided with a control device for controlling the storage amount to the predetermined amount by supplying the storage amount to a tank. According to this desalination apparatus, it is possible to avoid a situation in which the concentrated raw water is not sufficiently condensed at the start of the operation due to insufficient concentrated raw water.
  • a concentrated raw water storage tank is provided in the condenser, and a concentrated raw water discharge pump that supplies concentrated raw water from the evaporator to the concentrated raw water storage tank is provided.
  • the raw water is supplied to the evaporator before the desalination unit is operated. It is preferable to supply the concentrated raw water to the concentrated raw water storage tank by operating the pump, and to adjust the storage amount of the concentrated raw water.
  • FIG. 1 is a diagram showing an example of the overall configuration of a desalination apparatus according to the present invention.
  • FIG. 2 is a diagram showing an example of a detailed configuration of a part of the desalination apparatus according to the present invention.
  • FIG. 3 is a diagram showing a detailed configuration example of a part of the desalination apparatus according to the present invention.
  • FIG. 4 is a diagram showing a configuration of a power supply facility of the desalination apparatus according to the present invention. Preferred embodiments of the invention
  • the present desalination apparatus includes the solar heat collector 1 and the steam collector. It consists of a generator 2, a cooling tower 3, a distilled water tank 4, a concentrated water tank 5, and a vacuum device 6 such as a vacuum pump 6-2.
  • the solar heat collector 1 is composed of a plurality of solar heat collecting panels 1 — 1 to 16 that heat the heat medium with solar energy.
  • the heat medium vapor heated by the solar heat collector 1 is sent to the evaporator 2 through the pipe 7, and the condensed heat medium from the evaporator 2 is stored in the buffer tank 9 through the pipe 8, and further, the buffer tank From 9, the heat medium circulating pump 26 and piping 10 return to the solar heat collector 1 and circulate.
  • a heat medium temperature detector 31 for measuring the temperature of the heat medium (heat medium vapor) is provided.
  • the evaporator 2 has a degassing chamber 2-1 at the top, and a plurality of evaporators (here, eight evaporators 2 to 2 to 8 to 9) are located below it. It is configured.
  • raw water (in this case, seawater) W supplied from a water source such as a raw water tank (not shown) that can always supply raw water at or above atmospheric pressure is preheated through a raw water preheating pipe 12, and the deaeration chamber 2-1 Supplied to The raw water W overflowing the deaeration chamber 2-1 passes through an overflow pipe 13 and a predetermined amount of raw water W is stored in each of the first evaporator 2-2 to the eighth evaporator 2-9 in sequence.
  • Raw water W is supplied using a raw water supply pump 11.
  • the flow rate of the supplied raw water W is controlled by a motor-operated valve (solenoid valve) V8.
  • the raw water flow rate is detected by a raw water flow rate detector 32.
  • the case where the pump 11 is used for supplying raw water is shown, but even without such a pump, the inside of the desalination apparatus is kept at atmospheric pressure by depressurizing the inside of the desalination apparatus with the vacuum apparatus.
  • Raw water can also be supplied into the equipment.
  • the heat medium vapor from the solar heat collector 1 passes through the heat exchanger 2-1a disposed in the degassing chamber 211, and flows between the raw water W stored in the degassing chamber 2-1.
  • the heat exchange is performed, and further, the heat exchange is performed between the raw water stored in the first evaporator 2-2 through the heat exchanger 2-2a disposed in the first evaporator 2-2.
  • the steam W a evaporated by heating the raw water in the first evaporator 2-2 is sent as a heat source to the heat exchanger 2-3 a in the second evaporator 2-3 through the steam pipe 15, and between the water and the raw water. Heat exchange takes place.
  • the concentrated raw water in the concentrated water tank 5 is sent to the lower tank 3-1a of the condenser 3-1 of the cooling tower 3 through the concentrated raw water flow control valve V6 and the pipe 27 by the concentrated raw water discharge pump 16. It is supplied to the sprinkling nozzle 3-1 c by the concentrated raw water circulation pump 17 and is sprinkled as cooling water on the condensation (heat transfer) pipe 3-1 b.
  • the water vapor Wa evaporated by heating the raw water in the eighth evaporator 2-9 in the final stage is sent to the condenser pipe 3-1b in the condenser 31 through the pipe 18 to be condensed with the concentrated raw water sprinkled. Heat is exchanged between the two and condensed to form distilled water, which is sent to the distilled water tank 4 through the pipe 19.
  • the concentrated water overflowing the lower tank 3-1a is discharged through the concentrated water discharge pipe 20.
  • a concentrated raw water storage amount detector 34 for detecting the concentrated raw water storage amount is provided in the lower tank 3-1a of the condenser 3-1. Also, the concentrated water overflowing the lower tank 3-1a is discharged through the concentrated water discharge pipe 20.
  • the vacuum device 6 includes a gas-liquid separator 6-1 and a vacuum pump 5-2 connected to the gas-liquid separator 6-1.
  • the gas-liquid separator 6-1 is connected to the pipe 21 through which the heat and soot from the solar heat collector 1 passes through the pipes 21, 22, 23.
  • the degassing chamber 2-1 of the evaporator 2, the condenser 3-1 Connected to header 3 — 1d.
  • V1 to V8 are valves. These valves use electric valves that automatically close mechanically when the drive voltage drops. This is to prevent the vacuum break by mechanically closing the valve when the driving voltage using the solar cell as a power source drops, as will be described in detail later.
  • FIG. 4 is a diagram showing the configuration of the power supply equipment of the desalination apparatus according to the present invention and the control unit thereof.
  • Reference numeral 41 denotes a solar cell, and a DC output generated by the solar cell 41 is input to a DC transformer 42 to be boosted.
  • DC transformer 4 2 is connected to DC transformer 4 2-1 and constant current
  • the constant voltage means 42-2 maintains the output voltage of the DC transformer 42 at a predetermined constant value, the amount of power generated by the solar cell 41 increases, and the DC transformer 42-1 Even if the output voltage of the power supply becomes overvoltage, it protects the subsequent electrical equipment:
  • the output of the DC transformer 42 is input to the DC / AC converter 43 and converted to AC (three-phase AC).
  • This AC output is supplied to the raw water supply pump 11, concentrated raw water discharge pump 16, distilled water pump 25, concentrated raw water circulation pump 17, and heat medium circulation pump 26 via drivers D 1 to D 6
  • the power is supplied to an AC drive electric device such as a blower fan 3-2, and is also supplied as a power source for the operation / stop control means 44.
  • the DC output of the DC transformer 42 is supplied to DC drive electric devices such as electric valves V 1 to V 8 via drivers D 11 to D 18. Further, the DC output of the solar cell 41 is also supplied to the DC-driven electric devices 30 and 33 via the drivers D 21, D 22 ⁇ .
  • each driver D l '', D ll '', D 21 '' is connected to the operation Z stop control means 44 via a control line 46, and the operation Z stop control means 44 is connected to each driver D
  • Each electric drive device can be operated and stopped via 1 ⁇ ⁇ ⁇ , ⁇ 1 1 ⁇ ⁇ , ⁇ 2 1 ⁇ ⁇ .
  • the output voltage of the solar cell 41 is detected by a voltage detector 45, and the detected output is input to the operation / stop control means 44.
  • the output of the solar cell 41 is input to the DC transformer 42 without passing through the battery, and the output of the DC transformer 42 is connected to the valve V 1 via the drivers D 11 to D 18.
  • the output of the DC transformer 42 is input to the DC / AC converter 43, and the AC output is supplied to the raw water supply pump via the drivers D1 to D6.
  • 1 Concentrated raw water discharge pump 16, Distilled water pump 25, Concentrated raw water circulation pump 17, Heat medium circulation pump 26, Blower fan 3-2, etc. Eliminates the need for batteries and charge controllers in the power supply equipment of the equipment.
  • the heat medium circulating pump 26 is driven by the AC output from the DC / AC converter 43 via the driver D5, but is driven by the DC transformer 42. It may be a small DC pump driven by the DC output. It should be noted that other electric devices may be appropriately driven by DC or AC.
  • the electric valves V1 to V8 use electric valves that are mechanically closed when the amount of power generated by the solar cell 41 decreases and the voltage drops. 4 Although the power generation amount of 1 also decreases, the electric valves V1 to V8 are mechanically closed, so that the vacuum in the evaporation space and the condensing space of the evaporator 2 and the condensing space of the condenser 3-1 are broken. None be.
  • the operation / stop control means 44 monitors the output of the voltage detector 45 and, when detecting that the amount of power generated by the solar cell 41 has dropped below a predetermined amount, switches the vacuum device 6 to distilled water (fresh water). )
  • the pump 25 and the concentrated raw water discharge pump 16 are stopped in priority.
  • the distilled water pump 25 is stopped with priority given to the concentrated raw water discharge pump 16.
  • a pyranometer 48 or a small solar cell 47 is provided and its output is provided. May be output to the operation Z stop control means 44.
  • the operation / stop control means 44 monitors the output of the pyranometer 48 or the small solar cell 47, and can know that the power generation of the solar cell 41 has decreased.
  • Operation Z stop control means 4 4 is connected to heat medium temperature detector 3 1 and raw water flow rate detector 3 2, and heat medium at the outlet of solar heat collector 1 detected by heat medium temperature detector 3 1. The temperature and raw water flow rate detected by the raw water flow rate detector 32 are input.
  • the operation Z stop control means 4 4 monitors the temperature of the heat medium at the outlet of the solar heat collector 1 from the output of the heat medium temperature detector 31 and determines that the heat medium temperature becomes a predetermined temperature or lower than a predetermined temperature.
  • the opening degree of the raw water flow control motor-operated valve V8 is controlled via the driver D18 to control the inflow of raw water W.
  • the heat medium of the solar heat collector 1 is controlled. It is possible to prevent the temperature and the temperature of the raw water W from increasing to a high temperature, thereby reducing the heat collection efficiency of the solar heat collector 1. Also, it is possible to prevent the inflow of the raw water w from the amount of insolation being too large, so that the temperature of the raw water w and the temperature of the heating medium become low, and the desalination ability of the device is reduced.
  • the operation / stop control means 4 4 monitors the inflow of the raw water W from the output of the raw water flow detector 32, and when the heat medium temperature of the solar heat collector 1 is higher than a predetermined temperature, the raw water flow detector 3
  • the opening of the raw water flow control motor-operated valve V8 is controlled via the driver D18 so that the inflow amount of the raw water W detected in step 2 always keeps a predetermined minimum flow rate.
  • overconcentration of the raw water W can be prevented by always securing the inflow of the raw water W to a predetermined minimum flow rate.
  • the operation Z stop control means 44 sends a stop signal to the control line 46 to close the raw water flow control electric valve V8.
  • the operation control means 4 4 monitors the output of the concentrated raw water storage amount detector 34 and determines the storage amount of the concentrated raw water W in the lower tank 3-1 a of the condenser 3-1. If the amount is less than the amount, the raw water is supplied by the raw water supply pump 11 and the raw water flow control electric valve V8 in advance.
  • W is supplied to the degassing chamber 2-1 of the evaporator 2 and each evaporator, and the concentrated raw water in the concentrated water tank 5 of the evaporator 2 is supplied by the concentrated raw water discharge pump 16 and the concentrated raw water flow control valve V 6. W is supplied to the lower tank 3_1a of the condenser 3-1.
  • the operation control means 4 4 supplies the raw water supply pump 11 and the raw water supply pump 11 when the concentrated raw water W in the lower tank 3-1 a of the condenser 3-1 returns to a predetermined amount from the output of the concentrated raw water storage amount detector 34.
  • the supply of the raw water W to the evaporator 2 is stopped by the raw water flow control electric valve V8, and the concentrated raw water W is condensed by the concentrated raw water discharge pump 16 and the concentrated raw water flow control valve V6.
  • the lower tank of the condenser 3-1 3-1 Stop supplying to a.
  • the concentrated raw water in the lower tank 3-1a of the condenser 3-1 recovers to a predetermined amount
  • the supply of the raw water to the evaporator 2 is stopped, and the concentrated raw water W is condensed in the condenser 3-1. Since the supply to the lower tank 3-1 a is stopped, the raw water is not supplied to the desalination unit more than necessary, and the temperature rise of the raw water heating by the heat medium from the solar heat collector 1 becomes slow. It is possible to prevent a decrease in the rate of generation of water vapor, that is, a rate of desalination due to a decrease in the temperature of raw water.
  • a desalination apparatus can be appropriately performed using a power source unique to the apparatus, and can efficiently produce fresh water even in a place where there is no other power supply facility such as a desert. Can be.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

L'invention porte sur un appareil de désalinisation comprenant: un dispositif de gestion qui lorsque le courant électrique produit par un générateur tel qu'un panneau solaire faiblit, cesse d'alimenter certains moteurs d'un groupe selon un ordre de préférence donné de manière à maintenir un fonctionnement au ralenti; un régulateur du débit de l'eau salée fournie à l'évaporateur fixant la température du fluide le chauffant à un niveau donné ou à un niveau plus bas; un réservoir d'eau salée concentrée par évaporation; et un dispositif de mesure de la quantité d'eau concentrée dans le réservoir. On utilise l'eau salée concentrée pour refroidir le condenseur ou circule la vapeur produite par le chauffage de l'eau salée. Lorsque la quantité d'eau salée concentrée baisse au-dessous d'un niveau donné, le dispositif d'alimentation en eau salée fournit d'avance de l'eau salée à l'évaporateur et l'eau sortant de l'évaporateur vient rétablir le niveau du réservoir d'eau concentrée. Ces dispositions assurent une régulation efficace de la désalinisation.
PCT/JP2001/002784 2000-03-31 2001-03-30 Appareil de desalinisation WO2001072639A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001244680A AU2001244680A1 (en) 2000-03-31 2001-03-30 Water desalting apparatus

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2000-96840 2000-03-31
JP2000-96839 2000-03-31
JP2000096839A JP4112771B2 (ja) 2000-03-31 2000-03-31 淡水化装置
JP2000096840A JP4112772B2 (ja) 2000-03-31 2000-03-31 淡水化装置
JP2000-96837 2000-03-31
JP2000096837A JP4140677B2 (ja) 2000-03-31 2000-03-31 淡水化設備

Publications (1)

Publication Number Publication Date
WO2001072639A1 true WO2001072639A1 (fr) 2001-10-04

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PCT/JP2001/002784 WO2001072639A1 (fr) 2000-03-31 2001-03-30 Appareil de desalinisation

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AU (1) AU2001244680A1 (fr)
WO (1) WO2001072639A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103071305A (zh) * 2013-01-14 2013-05-01 上海理工大学 真空管型太阳能溶液再生器
CN105540706A (zh) * 2015-08-07 2016-05-04 朱虹斐 精密蒸馏净水装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939301A (ja) * 1982-08-26 1984-03-03 Oriental Metal Seizo Kk 多段濃縮装置の被濃縮液供給量制御システム
JPH02102777A (ja) * 1988-10-12 1990-04-16 Mitsubishi Electric Corp 海水淡水化装置
JPH0557273A (ja) * 1991-07-02 1993-03-09 Taiyo Kagaku:Kk 廃液濃縮装置
JPH09223809A (ja) * 1996-02-16 1997-08-26 Ebara Corp 環境調整設備
JP2000325945A (ja) * 1999-05-19 2000-11-28 Ebara Corp 塩水淡水化装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939301A (ja) * 1982-08-26 1984-03-03 Oriental Metal Seizo Kk 多段濃縮装置の被濃縮液供給量制御システム
JPH02102777A (ja) * 1988-10-12 1990-04-16 Mitsubishi Electric Corp 海水淡水化装置
JPH0557273A (ja) * 1991-07-02 1993-03-09 Taiyo Kagaku:Kk 廃液濃縮装置
JPH09223809A (ja) * 1996-02-16 1997-08-26 Ebara Corp 環境調整設備
JP2000325945A (ja) * 1999-05-19 2000-11-28 Ebara Corp 塩水淡水化装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103071305A (zh) * 2013-01-14 2013-05-01 上海理工大学 真空管型太阳能溶液再生器
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