WO2011157060A1 - Dispositif et procédé de traitement de l'eau - Google Patents

Dispositif et procédé de traitement de l'eau Download PDF

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Publication number
WO2011157060A1
WO2011157060A1 PCT/CN2011/001011 CN2011001011W WO2011157060A1 WO 2011157060 A1 WO2011157060 A1 WO 2011157060A1 CN 2011001011 W CN2011001011 W CN 2011001011W WO 2011157060 A1 WO2011157060 A1 WO 2011157060A1
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WO
WIPO (PCT)
Prior art keywords
water
cylinder
condenser
treated
heat
Prior art date
Application number
PCT/CN2011/001011
Other languages
English (en)
Chinese (zh)
Inventor
龚文浩
李和文
李辉
Original Assignee
Gong Wenhao
Li Heyi
Li Hui
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 Gong Wenhao, Li Heyi, Li Hui filed Critical Gong Wenhao
Publication of WO2011157060A1 publication Critical patent/WO2011157060A1/fr

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Classifications

    • 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
    • C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
    • C02F1/12—Spray evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for 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
    • 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
    • Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind 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
    • 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

Definitions

  • the present invention relates to a water treatment apparatus and method, and more particularly to a seawater desalination apparatus and method.
  • the desalination technology is dominated by distillation.
  • the seawater is heated by the heat source to boil. Then it is condensed into fresh water.
  • the heat source is also required. Commonly used heat sources ⁇ Steam, ;! 3 ⁇ 4 water, solar, geothermal water and waste heat.
  • the most widely used distillation techniques are multi-stage flash (MSF), multi-effect distillation (MED), and the like.
  • the multi-stage flash distillation j water desalination technology has high energy consumption, and the crusting and corrosion problems are serious.
  • the low-temperature multi-effect distillation seawater desalination technology is faster, and the more mature multi-effect distillation system uses the falling film evaporation method, mainly in the form of round tube falling film evaporation or 3 ⁇ 4 human plate ⁇ film evaporation, but its system
  • the amount of consumables is large, the volume is large, the initial investment is high, and the heat source has certain requirements : the maximum evaporating temperature is required to not exceed 70 ° C, otherwise the scaling problem is serious, which affects the system performance. Summary of the invention
  • an object of the present invention is to provide a method of presenting a water at a high temperature which is not affected by fouling and has a high evaporation temperature.
  • a water treatment device comprising a cylinder, a condenser, a condensate collecting device, a heat exchanger, and a spray device: WJlii.
  • the condenser, the shower device and the packing are disposed in the cylinder, to be The treated water is introduced into the heat exchanger in the heat source, and then sprayed to the surface of the filler by the shower device to partially evaporate into water vapor, the unvaporized water stream, and the water vapor is guided.
  • the condenser is condensed into condensed water by heat exchange with cooling water.
  • a water treatment method comprising the steps of: heating the water to be treated; heating / i lK'r. Water is sprayed onto the surface of the packing to evaporate into water vapor.
  • the water treatment method further includes the steps of: condensing water vapor evaporated from the filler into condensed water; and collecting the condensed water.
  • the heat source is one of solar energy, geothermal energy, wind energy, industrial waste heat, direct combustion hot water, and flue gas.
  • the condenser and/or heat exchanger may be one of a plate fin type, a finned tube type, a detachable plate type, a monolithic plate type, a column type ⁇ : type heat sink.
  • the condenser may include a fan.
  • the shower device may also include a fan.
  • the filler may be a grid packing, a corrugated packing, a pulse packing, a Raschig ring packing, a Pall ring packing, a step J!
  • the cylinder may be vertical or horizontal.
  • the arrangement of the cylinders may be multi-barrels, and in the multi-cylinder arrangement, multi-stage or multi-effect forms may be used, ( ⁇ . In multi-stage or multi-effect forms, further series or parallel forms may be further adopted. .
  • the cylinder adopts a negative pressure to facilitate evaporation of water to be treated in a high temperature state.
  • the evaporation process adopts the method of separating the heat exchanger and the filler, the former is carried out, and the latter is mass-transferred, that is, the water to be treated absorbs heat in the heat exchanger, and then is sprayed. After the device is sprayed, it evaporates on the surface of the filler which is in the range of lilliWW, and the filler is in the negative pressure cylinder. Due to the heat and mass transfer separation, the evaporation efficiency can be fully utilized to maximize the evaporation ratio. At the same time, the tiny special structure on the surface of the filler also facilitates the nuclear boiling of the superheated water: In addition, due to heat and mass transfer separation, it can be used.
  • Various compact heat exchangers improve heat exchange efficiency and reduce system body: strengthen condensation heat transfer, the condenser adopts multi-fin type compact heat exchanger, supplemented by fan for forced convection, and improve heat transfer efficiency 4 ( , ; System volume.
  • the present invention has the following advantages due to the above technical solution:
  • the invention makes forced convection heat transfer on the surface of the multi-fin compact heat exchanger when condensing, and strengthens the efficiency of the conversion, which is beneficial to increase the water production per unit volume.
  • the heat source of the invention is flexible, and the hot water produced by burning coal, gas, fuel oil, solar energy and electric heating can be selected, and various boilers, heating furnaces, burning furnaces, smelting furnaces, gas in the industry can also be used.
  • Furnace, heat installation ' ' i il: J flue gas waste heat.
  • the water treatment device and method of the present invention can be used not only for desalination of seawater, but also for sewage and water treatment, and extracting clean and hygienic steamed water from sewage or brackish water to realize water. Recycling of resources.
  • 1 is a schematic view showing the structure of a single barrel single-effect vertical water treatment device
  • FIG. 2 is a schematic structural view of a single-bucket multi-stage parallel vertical water treatment device
  • FIG. 3 is a schematic structural view of a single barrel single-effect horizontal water treatment device
  • FIG. 4 is a schematic structural view of a double barrel single-effect water treatment device
  • FIG. 5 is a schematic structural view of a multi-bucket multi-stage parallel water treatment device
  • FIG. 6 is a schematic structural view of a multi-bucket multi-stage series water treatment device
  • FIG. 7 is a schematic structural view of another multi-bucket multi-stage series water treatment device
  • FIG. 8 is a schematic structural view of a multi-bucket multi-effect parallel water treatment device
  • FIG. 9 is a schematic structural view of a multi-bucket multi-effect series water treatment device
  • FIG. 10 is a schematic structural view of another multi-barrel multi-effect series water treatment device
  • FIG. 11 is a schematic view showing the structure of a single barrel spray condensation single-effect vertical water treatment device
  • FIG. 1 As shown in FIG. 1, including a fan (1) cylinder (2), a condenser (3), a cooling water pump (4), a condensate collecting device [ ⁇ : W), a heat exchanger (5) , spray device (8), heat source water pump (6) and packing (7), the condenser (3), spray ft': (8),
  • the water to be treated is introduced into the heat exchanger (5) to exchange heat with the heat source, and then sprayed through the shower device (8)
  • the surface of the filler (7) is partially evaporated into water vapor, and the unvaporized water III is mixed with the water to be treated, and then re-entered into the heat exchanger (5) to exchange heat with the heat source.
  • the water vapor is introduced into the heat exchanger by the heat exchange of the '3' and the condenser (3) and the cooling water are condensed into condensed water and flows into the condensed water collecting device (9). (5) Some of them will be discharged after excretion.
  • the water to be treated before entering the heat exchanger (5) may be sequentially introduced into the condenser (3) to serve as cooling water for the condenser (3).
  • the water to be treated is introduced into the heat exchanger (5) and exchanged with the heat source, and simultaneously distributed to the plurality of sets of spray coatings ( ) spray and filler (7) surface, multiple groups
  • the spray water partially evaporates into water vapor, and the unvaporized water flows to the bottom of the cylinder.
  • the difference from the example 1 is that the cylinder (2) is horizontal and is divided into
  • the first cylinder (12), the second cylinder (13), the condenser (3), the condensate collecting device ⁇ ' ⁇ : (':)), and the reheater are included. (11), a heat exchanger (5), a shower device (8), and a filler (7), wherein the condenser (3) is disposed in the 3 ⁇ 4 ---, (!
  • the water to be treated before entering the heat exchanger (5) may be sequentially introduced into the condenser (and the device (11), used as the condenser (3) and the Cooling water for the heater (11).
  • the first cylinder (12), the condensate collecting device (9), the three second cylinders (13), and the heat exchange (5) are included in the first cylinder.
  • a condenser (3) is provided, and the second cylinder (13) is provided with a spray device (8) and a filler (7) : after the water treated by the f'f flows through the condenser (3), the The heat exchanger (5) exchanges heat with the heat source, and the water from the heat exchanger (5) is flowed into a flow of 111 1 V ' ⁇ - the water is divided into three channels and is respectively guided to the sprays in the three second cylinders.
  • the treated water is sprayed onto the surface of the filler (7) through the spraying device (8), a part of the water is evaporated into water vapor, and the unvaporized water passes through the H body I Flowing out; mixing the unvaporized water flowing from the bottom of the i-th second cylinder (13) with the water from the condenser (3), and re-entering the heat exchanger (5) heat exchange with a heat source, the unexposed water flowing out from the bottom of the first second cylinder is mixed with the water to be treated from the heat exchanger (5) and reintroduced into the first
  • the spray W (H) in the second cylinder is resprayed on the surface of the filler (7) of the first second cylinder After the water vapor evaporated from the surface of the filler (7) of each second cylinder is merged through the pipeline, it is guided to the condenser (3) for heat exchange with the water to be treated, and is condensed into cold water, 1 ⁇ 4t into Into the condensate collecting device (9).
  • FIG. 6 comprising a first cylinder (12), a condensate collecting device (9), three second cylinders (1:0, heat exchange (5), the first cylinder ( 12) a condenser (3) is provided, and the second cylinder (13) is provided with a shower device (8) and a material ('): V: ⁇ the treated water flows through the condenser (3) and is introduced into the station.
  • the heat exchanger (5) exchanges heat with the heat source, and then is introduced into the three:: in the cylinder, in one of the second cylinders (13), from the previous second cylinder (13)
  • the water to be treated is sprayed through the 3 3 ⁇ 4; (8) sprayed onto the surface of the filler (7), a part of the water is evaporated into water vapor, and the unvaporized water flows out through the bottom of the cylinder as a second cylinder (13)
  • the water to be treated, the unvaporized water flowing out from the bottom of the last second cylinder (13) is mixed with the water to be treated of the condenser (3), and then re-entered into the heat exchanger (5)
  • the water to be treated by the IS the treated water is separated into two branches before entering the heat exchanger (5), and the first branch is connected to the first one.
  • the first cylinder (12) is provided with a condenser (3)
  • the second cylinder (13) is provided with a spray device (8) and a filler (7): ii treated water flows through
  • the condenser (3) is then introduced into the heat exchanger (5) to exchange heat with the heat source, and then introduced into the ":.. cylinder", in one of the second cylinders (13),
  • the water to be treated from the previous second cylinder (13) is sprayed onto the surface of the packing (7) through the spray device (8), a part of the water is evaporated into water vapor, and the unvaporized water flows out through the bottom of the cylinder as an entry.
  • the unvaporized water flowing from the bottom of the last second cylinder (13) is mixed with the water to be treated of the condenser (3), and then re- Entering the heat exchanger (5) to exchange heat with the heat source, and circulating; the water vapor evaporated from the surface of the filler (7) of the cylinder (13) is merged by the pipeline and then guided to the condenser (3)
  • the heat exchange of the water to be treated is condensed into condensed water and flows into the condensed water collecting device (9).
  • the first cylinder (12), the condensate collecting device (9), the three second cylinders ( ⁇ ), the first one (1 1) and the heat exchanger are included ( 5), the first cylinder is provided with a condenser (3), and each of the second cylinders (1) is provided with a spray (8) and a filler (7); the water to be treated flows through After the condenser (3) and the third reheater 0.1), the ' ⁇ roads are respectively entered into the heat exchanger (5) and the first to second reheaters (11), Then, the shower device (8) introduced into the Lth to the second taste, respectively, is sprayed onto the surface of the filler (7) in each of the second cylinders, and a part of the water is evaporated into a water swallow' ⁇ —the unvaporized water flows to the bottoms of the respective second cylinders respectively; the water in the first to second second cylinders (13) is guided to the first to the first The two reheaters (11) exchange heat with the water to be treated,
  • a first cylinder (12), a condensate collecting device (9), three second cylinders (13), a vessel (11), and a heat exchanger (5) are included.
  • the first cylinder is provided with a condenser (3)
  • the second cylinder (U) is provided with a spray device: 'i': (8) and "A material (7); water to be treated
  • the heat exchanger (5) 1 j heat source heat exchange After flowing through the condenser (3) and the third reheater (11) in turn, it is introduced into the heat exchanger (5) 1 j heat source heat exchange, and then introduced into the first second cylinder (13)
  • the shower device (8) is sprayed onto the surface of the first second cylinder (13 ⁇ 4 material (7), a part of the water is evaporated into water vapor, and the unvaporized water passes through the first second cylinder: 3
  • the bottom of the bottom is discharged, and the shower device (8) introduced into the second second cylinder (13) after the first reheater is sprayed onto the second second
  • the third second cylinder (13) passes through the surface of the filler (7) which is sprayed into it, and a part of the water evaporates into Vapor, unvaporized water flows out through the bottom of the third :: (13), and after mixing with the water to be treated from the third reheater (11), re-enters the heat exchanger ( ) 3 ⁇ 4 Source heat exchange; the water vapor evaporated from the surface of the filler (7) of the i-th second cylinder (11) is introduced into the first reheater (11) and is treated to be treated therein
  • the water heat exchange, i 2, 3, and then turbulent from each reheater (1 1 ); the condensed water vapor and part of the condensed water merge and are directed to the condenser (3) and the water to be treated
  • the heat exchange is condensed into cold water into the condensate collecting device (9).
  • the difference from the example 9 is that the water from the third reheater (11) is divided into two before entering the heat exchanger (5). a branch, wherein the first branch is connected to the pipe between the bottom of the third: -. i W iA 'A ) and the third reheater, such that from the third The unvaporized water flowing out from the bottom of the second cylinder (I) is mixed with the water to be treated from the third reheater before entering the heat exchanger (5).
  • FIG. 11 As shown in FIG. 11, comprising a cylinder (2), a condensing filler (3), a condensation spray device, a preheater (16), a condensate collecting device (9), a heat exchanger (5), Evaporative spray device (8) and evaporating packing (7), said condensing filler (3), condensing spray
  • a condensate collecting device (9), an evaporative shower device (8), and an evaporating packing (7) are disposed in the cylinder (2), f.
  • Chuanchuan water is introduced into the heat exchanger (5) heat exchange with the heat source, and then sprayed to the surface of the steaming material (7) through the evaporation shower device (8), a part of the water is evaporated into water vapor, and the unvaporized water flows to the bottom of the cylinder body.
  • the water vapor condensed packing is condensed into condensed water, and the condensed water is collected by the condensed water collecting device (9), and a part thereof is used in the ⁇ -preheater (16) for pre-preparation. the hot water to be treated, the condensed water from the preheater (16) after flowing out of a primer.
  • the condensing spray device (15) described in the specification is sprayed onto the surface of the condensate packing.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

La présente invention concerne un dispositif de traitement de l'eau, comprenant un premier tube (12), un dispositif de récupération de l'eau condensée (9), n second tubes (13), n réchauffeurs (11) et un échangeur de chaleur (5), un condensateur (3) étant disposé dans le premier tube (12), et un pulvérisateur (8) et une charge (7) étant disposés dans chaque second tube (13). L'eau à traiter circule dans le condensateur (3) et dans le xe réchauffeur (11) à son tour, et est conduite dans l'échangeur de chaleur (5) et dans le premier jusqu'au xe n-1 réchauffeur (11) respectivement, puis est conduite dans les pulvérisateurs (8) dans le premier jusqu'au xe second tubes (13), et est pulvérisée à la surface de la charge (7) dans chaque second tube (13). La vapeur circulant hors du premier au xe réchauffeurs (11) est rassemblée puis conduite dans le condensateur (3) pour échanger la chaleur avec l'eau à traiter et est condensée en eau condensée. Simultanément, l'invention concerne un procédé de traitement d'eau. Le procédé n'est pas affecté par l'encrassement et présente une température d'évaporation élevée.
PCT/CN2011/001011 2010-06-18 2011-06-17 Dispositif et procédé de traitement de l'eau WO2011157060A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010202690.0A CN101880068B (zh) 2010-06-18 2010-06-18 一种水处理装置和方法
CN201010202690.0 2010-06-18

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WO2011157060A1 true WO2011157060A1 (fr) 2011-12-22

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CN101880068B (zh) * 2010-06-18 2015-06-17 北京青鸾盛昌科技有限公司 一种水处理装置和方法
CN103170156B (zh) * 2013-04-10 2016-08-31 北京纬纶华业环保科技股份有限公司 一种低温高效节能蒸发结晶设备及工艺
CN104677134B (zh) * 2013-11-30 2017-11-24 尚立新 利用余热以制备淡水和净化空气的回收装置及其使用方法
CN104150548B (zh) * 2013-12-24 2016-06-22 北京大学包头创新研究院 一种海水淡化系统
CN107935085A (zh) * 2017-12-25 2018-04-20 重庆大学 循环列管大气蒸发器
CN108609786B (zh) * 2018-02-22 2024-01-05 华北水利水电大学 低质余热驱动高盐废水盐水分离全回收的蒸发冷凝循环设备和方法
CN112696944A (zh) * 2020-12-18 2021-04-23 苏州市腾中钛设备制造有限公司 一种便于水量调节的预热器
CN115634522A (zh) * 2022-10-20 2023-01-24 云南曲靖钢铁集团呈钢钢铁有限公司 一种带式烧结机烟气的环保节能型深度净化系统及方法

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CN201151676Y (zh) * 2008-01-08 2008-11-19 上海大学 内循环多效蒸发冷凝的太阳能海水淡化装置
CN101880068A (zh) * 2010-06-18 2010-11-10 龚文浩 一种水处理装置和方法
CN201793400U (zh) * 2010-06-18 2011-04-13 龚文浩 一种水处理装置

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CN2883340Y (zh) * 2006-02-20 2007-03-28 西北工业大学 一种闭式太阳能或低温热源海水淡化装置
CN201367361Y (zh) * 2009-03-13 2009-12-23 国家海洋局天津海水淡化与综合利用研究所 一种箱柜式低温多效蒸馏海水淡化整体装置

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US4199406A (en) * 1975-10-28 1980-04-22 Diggs Richard E Apparatus for desalinating water
CN2890784Y (zh) * 2006-03-29 2007-04-18 烟台富仕通上奇制冷设备有限公司 一种组合冷凝装置
CN1975286A (zh) * 2006-12-01 2007-06-06 华南理工大学 空调制冷和海水淡化一体化装置及其使用方法
CN201151676Y (zh) * 2008-01-08 2008-11-19 上海大学 内循环多效蒸发冷凝的太阳能海水淡化装置
CN101880068A (zh) * 2010-06-18 2010-11-10 龚文浩 一种水处理装置和方法
CN201793400U (zh) * 2010-06-18 2011-04-13 龚文浩 一种水处理装置

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