WO2015124061A1 - 幕帘式蒸发器 - Google Patents

幕帘式蒸发器 Download PDF

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Publication number
WO2015124061A1
WO2015124061A1 PCT/CN2015/072313 CN2015072313W WO2015124061A1 WO 2015124061 A1 WO2015124061 A1 WO 2015124061A1 CN 2015072313 W CN2015072313 W CN 2015072313W WO 2015124061 A1 WO2015124061 A1 WO 2015124061A1
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Prior art keywords
evaporator
curtain
benefit
curtains
housing
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PCT/CN2015/072313
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English (en)
French (fr)
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陈达人
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陈达人
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Publication of WO2015124061A1 publication Critical patent/WO2015124061A1/zh

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    • 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
    • C02F1/08—Thin film evaporation
    • 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

Definitions

  • the invention belongs to the field of production facilities for seawater desalination and seawater chemical resources development and utilization, and particularly relates to an evaporation device for a vacuum distillation seawater desalination system--curtain evaporator.
  • Distillation seawater desalination mainly has multi-stage flashing and low-temperature multi-effect distillation technology, but its crusting is complicated, equipment investment is large, and energy consumption is high. Only fresh water is extracted from seawater, the extraction amount is only about 50%, and concentrated seawater is discharged. Cause energy, seawater chemical resources waste and environmental pollution.
  • the reverse osmosis seawater desalination technology also has the same drawbacks.
  • an evaporation device for a vacuum distillation seawater desalination system - a curtain evaporator for a vacuum distillation seawater desalination system - a curtain evaporator.
  • a curtain evaporator comprising an evaporator housing, a vapor outlet disposed above the evaporator housing, and a concentrated seawater discharge port disposed below the evaporator housing And further comprising an inlet pipe extending into the interior of the evaporator casing for conveying hot sea water, a plurality of outlet pipes disposed inside the evaporator casing and connected to the inlet pipe, and being disposed at the evaporator A plurality of curtains directly suspended from the outlet pipe inside the casing.
  • the curtains being made of corrosion-resistant fiber cloth or stainless steel wire mesh, the number, size and spacing of the curtains and the separation distance between the curtains, according to The amount of evaporation required to be calculated and determined.
  • the curtains disposed inside the evaporator housing are directly suspended from the outlet pipe.
  • the curtain evaporator has a simple structure and a low cost.
  • a plurality of curtains are arranged inside the evaporator casing to allow the hot seawater entering the evaporator to have a large evaporation area.
  • the hot seawater is fully evaporated, and the designed evaporation amount can reach more than 90%, and the unvaporized portion
  • the high-concentration seawater can be used for salt production, extraction of potassium, bromine, magnesium, etc., so that the seawater desalination industry can obtain greater economic benefits.
  • the drawing is a schematic view showing the structure of an embodiment of the curtain evaporator of the present invention.
  • the present invention discloses a curtain evaporator comprising an evaporator housing 1 , a vapor outlet 2 disposed above the evaporator housing 1 , and an evaporator housing 1 .
  • the concentrated seawater discharge port 3 below further includes an inlet pipe 4 extending into the interior of the evaporator casing 1 for conveying hot seawater, and a plurality of outlet pipes 5 disposed inside the evaporator casing 1 and connected to the inlet pipe 4, and A plurality of curtains 6 suspended directly inside the evaporator casing 1 on the outlet pipe 5 are provided.
  • a plurality of curtains 6 are arranged inside the evaporator casing 1 to allow the hot seawater entering the evaporator to have a sufficiently large evaporation area. Under the vacuum state of the system, the hot seawater is fully evaporated, and the designed evaporation amount can reach more than 90%.
  • the curtain 6 is made of a corrosion-resistant fiber cloth or a stainless steel wire mesh. The number, size and spacing of the curtains 6 and the separation distance between the curtains 6 are determined according to the amount of evaporation required.
  • the curtains 6 provided inside the evaporator casing 1 are directly suspended from the outlet pipe 5, respectively.
  • the length of the slit is consistent with the width of the curtain 6, and the two outlet slits are respectively disposed on both sides of the curtain 6, so that the hot sea water flows to or sprays on both sides of the curtain 6, respectively.
  • the hot seawater of the vacuum distillation system enters the evaporator from the inlet pipe 4 and enters each of the outlet pipes 5, respectively, and flows from the lower side of the outlet pipe 5 to or from both sides of the curtain 6, and the hot sea water seeps on both sides of the curtain 6. Falling, because the curtain 6 has a large enough evaporation area, in the system vacuum state, the hot sea water is fully evaporated, and the vapor enters the condenser from the upper outlet of the evaporator through the pipeline, condenses into fresh water, and the unvaporized portion is concentrated seawater close to the crystal concentration. (Concentrated brine), discharged from the outlet below the evaporator.
  • the curtain curtain evaporator has a simple structure, low cost, and the hot sea water can be fully evaporated, and the curtain evaporator is used.
  • the vacuum distillation seawater desalination system can obtain more than 90% of high-quality fresh water and concentrated seawater close to the crystal concentration. Achieve zero emissions, energy saving, and avoid environmental pollution.
  • This high-concentration seawater can be used to make salt and extract important basic chemical raw materials such as potassium, bromine and magnesium.
  • the first step is taken to make the desalination industry more economical.

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  • 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)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

一种幕帘式蒸发器，其包括蒸发器壳体（1）、设置在蒸发器壳体（1）上方的蒸气出口（2）和设置在蒸发器壳体（1）下方的浓海水排放口（3），还包括伸入至蒸发器壳体（1）内部的用于输送热海水的进水管（4）、设置在蒸发器壳体（1）内部与进水管（4）相连接的多个出水管（5）以及设置在蒸发器壳体（1）内直接悬挂在出水管（5）上的多幅幕帘（6）。该幕帘式蒸发器结构简单、造价低，在蒸发器壳体内设置多幅幕帘，让进入蒸发器内的热海水有足够大的蒸发面积。

Description

幕帘式蒸发器
相关申请
本专利申请要求2014年2月19日申请的，申请号为201410056957.8，名称为“幕帘式蒸发器”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本发明属海水淡化及海水化学资源开发利用的生产设施领域，具体涉及用于真空蒸馏海水淡化系统的一种蒸发装置--幕帘式蒸发器。
背景技术
目前海水淡化广泛采用蒸馏法和反渗透法。
蒸馏法海水淡化主要有多级闪蒸及低温多效蒸馏技术，但其结抅复杂、设备投资大、能耗高，只从海水中提取淡水，提取量仅50％左右，浓海水被排放，造成能源、海水化学资源浪费及环境污染。反渗透法海水淡化技术也有同样的缺陷。
发明内容
针对现有技术的缺陷，这里提供一种用于真空蒸馏海水淡化系统的蒸发装置--幕帘式蒸发器。
本发明通过以下技术方案予以实现：一种幕帘式蒸发器，包括蒸发器壳体、设置在所述蒸发器壳体上方的蒸气出口和设置在所述蒸发器壳体下方的浓海水排放口，还包括伸入至所述蒸发器壳体内部用于输送热海水的进水管、设置在所述蒸发器壳体内部与所述进水管相连接的多个出水管以及设置在所述蒸发器壳体内部直接悬挂在所述出水管上的多幅幕帘。
在所述蒸发器壳体内部设置多幅幕帘，所述幕帘采用耐腐蚀的纤维布或不锈钢丝网制成，所述幕帘的数量、大小尺寸以及幕帘之间的间隔距离，根据蒸发量的大小要求计算确定。
所述蒸发器壳体内部设置的幕帘分别直接悬挂在出水管上。
所述出水管下侧有二条间断式出水缝，缝长度与幕帘宽度一致，二条出水缝分别设置在幕帘两侧,以使热海水分别流向或喷向幕帘的两侧。
本发明相对现有技术具有如下有益效果：该幕帘式蒸发器结构简单、造价低， 在蒸发器壳体内部设置多幅幕帘，让进入蒸发器内的热海水有足够大的蒸发面积，在系统真空状态下，热海水充分蒸发，设计蒸发量可达90％以上，未蒸发部分为接近结晶浓度的浓海水，实现零排放、节能、避免环境污染等目的，该高浓度海水可用于制盐、提取钾、溴、镁等，使海水淡化业获得更大的经济效益。
附图说明
附图为本发明幕帘式蒸发器的一个实施例的结构示意图。
图中：1、蒸发器壳体；2、蒸气出口；3、浓海水排放口；4、进水管；5、出水管；6、幕帘。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
如图1所示，本发明公开一种幕帘式蒸发器，该幕帘式蒸发器包括蒸发器壳体1、设置在蒸发器壳体1上方的蒸气出口2和设置在蒸发器壳体1下方的浓海水排放口3，还包括伸入至蒸发器壳体1内部用于输送热海水的进水管4、设置在蒸发器壳体1内部与进水管4相连接的多个出水管5以及设置在蒸发器壳体1内部直接悬挂在出水管5上的多幅幕帘6。
在蒸发器壳体1内部设置多幅幕帘6，让进入本蒸发器的热海水有足够大的蒸发面积，在系统真空状态下，热海水充分蒸发，设计蒸发量可达90％以上。幕帘6采用耐腐蚀的纤维布或不锈钢丝网制成，幕帘6的数量、大小尺寸以及幕帘6之间的间隔距离，根据蒸发量的大小要求计算确定。蒸发器壳体1内部设置的幕帘6分别直接悬挂在出水管5上。出水管5下侧有二条间断式出水缝，缝长度与幕帘6宽度一致，二条出水缝分别设置在幕帘6两侧,以使热海水分别流向或喷向幕帘6的两侧。
真空蒸馏系统的热海水从进水管4进入本蒸发器后分别进入各出水管5，并从出水管5下侧出水缝流向或喷向幕帘6两侧，热海水在幕帘6两侧渗落，因为幕帘6有足够大的蒸发面积，在系统真空状态下，热海水充分蒸发，蒸气从蒸发器上方出口经管道进入冷凝器，冷凝成淡水，未蒸发部分为接近结晶浓度的浓海水(浓卤水)，从蒸发器下方出口排出。
本幕帘式蒸发器结构简单，造价低，热海水可充分蒸发，采用本幕帘式蒸发器 的真空蒸馏海水淡化系统，可获得90％以上的优质淡水和接近结晶浓度的浓海水。实现零排放、节能、避免环境污染。此高浓度海水可供制盐、提取钾、溴、镁等重要基础化工原料。为实现海水淡化和海水化学资源综合利用迈出了第一步,使海水淡化业获得更大的经济效益。

Claims (4)

  1. 一种幕帘式蒸发器，其特征在于：包括蒸发器壳体(1)、设置在所述蒸发器壳体(1)上方的蒸气出口(2)和设置在所述蒸发器壳体(1)下方的浓海水排放口(3)，还包括伸入至所述蒸发器壳体(1)内部用于输送热海水的进水管(4)、设置在所述蒸发器壳体(1)内部与所述进水管(4)相连接的多个出水管(5)以及设置在所述蒸发器壳体(1)内部直接悬挂在所述出水管(5)上的多幅幕帘(6)。
  2. 根据权利要求1所述的幕帘式蒸发器，其特征在于：在所述蒸发器壳体(1)内部设置多幅幕帘(6)，所述幕帘(6)采用耐腐蚀的纤维布或不锈钢丝网制成。
  3. 根据权利要求1所述的幕帘式蒸发器，其特征在于：所述蒸发器壳体(1)内部设置的幕帘(6)分别直接悬挂在出水管(5)上。
  4. 根据权利要求1-3中任一项所述的幕帘式蒸发器，其特征还在于：所述出水管(5)下侧有二条间断式出水缝，缝长度与幕帘(6)宽度一致，二条出水缝分别设置在幕帘(6)两侧,以使热海水分别流向或喷向幕帘(6)的两侧。
PCT/CN2015/072313 2014-02-19 2015-02-05 幕帘式蒸发器 WO2015124061A1 (zh)

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CN201410056957.8A CN103787437B (zh) 2014-02-19 2014-02-19 幕帘式蒸发器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103787437B (zh) * 2014-02-19 2015-07-22 陈达人 幕帘式蒸发器
CN108640186A (zh) * 2018-04-24 2018-10-12 安徽春辉仪表线缆集团有限公司 一种节能幕帘式蒸发器

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CN2437386Y (zh) * 2000-08-04 2001-07-04 张培洲 单片可拆式外流自由降膜板式蒸发器
CN1576766A (zh) * 2003-06-27 2005-02-09 乌里阿·卡萨勒有限公司 降膜管束热交换器
CN1583583A (zh) * 2004-05-25 2005-02-23 周梦然 陆上型太阳能毛细蒸发海水淡化器
CN201347368Y (zh) * 2008-12-25 2009-11-18 滨海环保装备（天津）有限公司 一种海水淡化蒸发器
KR20130063309A (ko) * 2011-12-06 2013-06-14 박용희 고효율 해수 증발 장치 및 이를 이용한 해수 증발 방법
CN103787437A (zh) * 2014-02-19 2014-05-14 陈达人 幕帘式蒸发器

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CH645601A5 (en) * 1979-11-29 1984-10-15 Atlantis Energie Ag System for desalinating sea water
CN2052682U (zh) * 1988-09-23 1990-02-14 王风岐 外流自由降膜板式蒸发器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2437386Y (zh) * 2000-08-04 2001-07-04 张培洲 单片可拆式外流自由降膜板式蒸发器
CN1576766A (zh) * 2003-06-27 2005-02-09 乌里阿·卡萨勒有限公司 降膜管束热交换器
CN1583583A (zh) * 2004-05-25 2005-02-23 周梦然 陆上型太阳能毛细蒸发海水淡化器
CN201347368Y (zh) * 2008-12-25 2009-11-18 滨海环保装备（天津）有限公司 一种海水淡化蒸发器
KR20130063309A (ko) * 2011-12-06 2013-06-14 박용희 고효율 해수 증발 장치 및 이를 이용한 해수 증발 방법
CN103787437A (zh) * 2014-02-19 2014-05-14 陈达人 幕帘式蒸发器

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