CN103170156A - 一种低温高效节能蒸发结晶设备及工艺 - Google Patents
一种低温高效节能蒸发结晶设备及工艺 Download PDFInfo
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- CN103170156A CN103170156A CN2013101223727A CN201310122372A CN103170156A CN 103170156 A CN103170156 A CN 103170156A CN 2013101223727 A CN2013101223727 A CN 2013101223727A CN 201310122372 A CN201310122372 A CN 201310122372A CN 103170156 A CN103170156 A CN 103170156A
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- heat exchanger
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- 238000002425 crystallisation Methods 0.000 title claims abstract description 36
- 230000005712 crystallization Effects 0.000 title claims abstract description 36
- 238000005516 engineering process Methods 0.000 title abstract description 5
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- 238000009826 distribution Methods 0.000 claims description 26
- 239000000945 filler Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000011780 sodium chloride Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
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- 229920000122 Acrylonitrile butadiene styrene Polymers 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N Acrylonitrile butadiene styrene Chemical compound 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C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
本发明公开了一种低温高效节能蒸发结晶设备及工艺，包括蒸发室和冷凝室，所述冷凝室通过支撑板固定于蒸发室外壳内，其工艺包括以下步骤：（1）原水经泵提升后，先后进入外换热器与内换热器进行换热，然后加热至设定温度后，原水进行喷淋蒸发；（2）对蒸发后的水蒸气进行结晶冷凝，冷凝后的液体经外换热器换热后排出，未蒸发的浓盐水经循环泵提升后与原水混合后进入下一蒸发结晶过程。本发明的设备，集蒸发、结晶一体化，经过两次能量回收后，能量重复利用率高；能耗低；且本发明的设备能自动连续运行，满足连续进料、连续排料的要求，蒸发室与冷凝室之间的强制循环形成了最佳的配合，其内部结构使得晶体和清液得到有效的快速分离，效率高。
Description
一种低温高效节能蒸发结晶设备及工艺
技术领域
[0001] 本发明涉及一种蒸发结晶设备及工艺，具体涉及一种可应用于环保、化工领域的低温高效节能蒸发结晶设备及工艺。
背景技术
[0002] 现有的蒸发设备都是针对特定的生产工艺和物料设计的，功能较为单一，在蒸发完指定物料浓度后再进入另一个结晶器进行结晶分离，设备较大，结构较复杂，操作不方便，而且在蒸发加热过程中的能量重复利用率不高，设备不具有通用性，从而给生产带来不便。专利201220089427.X中使用了循环压缩机对二次蒸汽压缩，然后再对原水加热。与传统结晶器相比，能耗得到了较好的节约，但不足的是，相应配套的设备也随之增加，使整个系统变得复杂，占地面积也较大，增加了运行费用。如何提高热能的利用率，降低运行成本，并使设备简易化、一体化，进而提高设备运行效率，是目前亟待解决的问题。
发明内容
[0003] 本发明的目的在于克服现有技术的不足，提供一种结构紧凑占地面积小、能量重复利用率高且效果稳定的低温高效节能蒸发结晶设备及工艺。
[0004] 为实现上述目的，本发明通过以下技术方案实现:
[0005] 一种低温高效节能蒸发结晶设备，包括蒸发室和冷凝室，所述蒸发室包括蒸发室外壳和设置于蒸发室外壳内从上至下布置的布水层、蒸发层和浓盐水水槽，所述布水层包括布水管路，所述布水管路向下设置有布水喷头，所述蒸发层包括支撑板和设置于支撑板上的填料；所述冷凝室固定于蒸发室外壳内，所述冷凝室包括冷凝室外壳和设置于冷凝室外壳内的从上至下布置的风扇，内换热器和冷凝水水槽；所述内换热器的出水端与进水端分别与布水管路和原水管相连通，所述冷凝水水槽通过冷凝水排水管与设于蒸发室外部的外换热器相连通。
[0006] 优选的是，所述冷凝室通过支撑板固定于蒸发室外壳内。
[0007] 优选的是，所述布水管路上设有加热器和流量控制阀，所述布水喷头的喷嘴直径为 0.5 〜3mm。
[0008] 优选的是，所述冷凝室外壳的下部侧壁上设有阻水板，以阻止冷凝水进入蒸发室，所述阻水板与冷凝水水槽相连。
[0009] 优选的是，所述内换热器为翅式换热器，所述外换热器为套管换热器或板式换热器。
[0010] 优选的是，所述填料为双向波填料。
[0011] 优选的是，所述浓盐水水槽通过浓盐水循环管与原水管相连通，所述浓盐水循环管位于外换热器下部，所述浓盐水循环管上设有循环泵。
[0012] 优选的是，所述蒸发结晶设备的外部设有保温层。
[0013] 一种低温高效节能蒸发结晶工艺，包括以下步骤:(1)原水经泵提升后，先后进入外换热器与内换热器进行换热，然后加热至设定温度后，原水进行喷淋蒸发；(2)对蒸发后的水蒸气进行结晶冷凝，冷凝后的液体经过外换热器换热后排出，未蒸发的浓盐水经循环泵提升后与原水混合后进入下一蒸发结晶过程。
[0014] 优选的是:所述工艺的温度为O〜80°C，压力为-0.1〜0.2MPa。
[0015] 相对于现有技术，本发明的设备，结构紧凑，集蒸发、结晶一体化，占地面积小，经过两次能量回收后，能量重复利用率高；设备运行中的最高温度仅为80°C，能耗低；且本发明的设备能自动连续运行，满足连续进料、连续排料的工艺要求，蒸发室与冷凝室之间的强制循环形成了最佳的配合，其内部结构使得晶体和清液得到有效的快速分离，效率高。本发明的设备采用风扇提供动力，使得内部空气进行强制循环，利用不同温度下空气中的饱和蒸汽含量不同，进而实现蒸发结晶过程，通过外换热器可利用相对高温的冷凝水给原水进行预热，充分利用了高温冷凝水降温后所释放出的能量，通过内换热器可使得蒸汽冷凝所放出的热量给原水进行加热。经过外换热器和内换热器进行两次换热后，有效的回收了热能，有效的节约了能量。使用本发明的设备，不仅减少了运行费用，而且大大减少了企业的生产成本，给企业带来直接的经济效益；工业生产中的浓盐水、污水、废水等经过本发明的设备处理后可以实现回收再利用，减少了工业污水的排放，在保护环境的同时也节省了国家的水资源。
附图说明
[0016] 图1示出了本发明所述蒸发结晶设备的结构示意图；
[0017] 图2示出了不同温度下饱和湿空气的含水量；
[0018] 图3示出了不同温度下水蒸气的饱和蒸汽压。
具体实施方式
[0019] 下面结合附图对本发明的具体实施方式做进一步说明。
[0020] 参考图1，本发明所述的蒸发结晶设备包括蒸发室I和冷凝室2，所述蒸发室I包括蒸发室外壳和设置于蒸发室外壳内从上至下布置的布水层、蒸发层和浓盐水水槽23，所述蒸发层包括支撑板10和设置于支撑板10上的填料11 ;所述填料11为耐高温、耐腐蚀性的双波向填料，其材质为PVC塑料，其片距为30mm，片厚0.35〜0.5mm，用以加速原水的蒸发，促进水合空气之间的能量传递。所述布水层包括布水管路13，所述布水管路13向下设置有布水喷头17，所述布水喷头17的材质为ABS塑料，在防腐的同时也不会堵塞，喷淋的水滴能雾化，喷嘴直径为0.5〜3mm，每平方米每秒可分配到4L喷淋液。所述布水管路13上还设置有控制流量大小的控制阀14，以及加热器12，所述浓盐水水槽23通过其侧壁的浓盐水循环管22与原水管3相连通。
[0021] 所述冷凝室2通过支撑板10固定于蒸发室外壳内，所述冷凝室2包括冷凝室外壳和设置于冷凝室外壳内的从上至下布置的风扇16，内换热器18和冷凝水水槽8 ;所述内换热器18为翅式换热器，其出水端和进水端分别与布水管路13和原水管3相连通，冷凝室外壳的下部侧壁上设有阻水板9，以阻止冷凝水进入蒸发室1，所述阻水板与冷凝水水槽8相连；所述冷凝水水槽8通过其底部的冷凝水排水管20与设于蒸发室外部的外换热器7相连通，所述外换热器7为套管换热器或板式换热器。[0022] 本发明所述的蒸发结晶设备的工作原理为:在不同温度下，饱和湿空气的含水量不同，如附图2所示，其对应的饱和蒸汽分压如附图3所示。通过对空气进行加热和冷却，使其在饱和蒸汽压的推动下不断地携带一定量的水蒸气，进而实现浓盐水蒸发与结晶。分离出来的冷凝水可以作为中水进行再利用，结晶盐可以在市场上销售。本发明中，空气在蒸发室I和冷凝室2循环的动力来自于冷凝室2顶部的风扇16，所述风扇16的风速为I〜30m/s，其作用是对内部空气进行强制循环。热风15携带着饱和蒸汽进入冷凝室2，经过内换热器18使其降温，蒸汽冷凝成水进入冷凝水水槽8，降温后的冷空气通过阻水板9进入蒸发室I进行下一蒸发结晶循环。
[0023] 采用本发明所述的蒸发结晶设备，其工艺步骤如下:原水管3中的原水，在原水泵4的作用下进入外换热器7，与冷凝水换热后进入内换热器18，充分吸收蒸汽冷凝放出的潜热后，进入设于布水管路13上的加热器12中加热至设定温度后，通过布水喷头17进行喷淋。来自冷凝室2的冷风19进入蒸发室I后，与布水喷头17喷淋下来的热水在填料11上相接触，水蒸气在填料11上蒸发，蒸发后的水蒸气在设于冷凝室2顶部的风扇16提供的热风15的带动下进入冷凝室2冷凝，吸收热量后，携带一定量的饱和蒸汽一起进入冷凝室2冷凝，冷凝后的液体进入冷凝水水槽8，并经外换热器7与原水换热后，经冷凝水出口 21排出。未蒸发的浓盐水进入浓盐水水槽23，经循环泵6与原水混合后进行下一蒸发结晶循环过程，蒸发结晶产生的结晶盐通过设于浓盐水水槽23底部的结晶盐出口管5排出。
[0024] 实施例1
[0025] 利用上述装置处理含盐废水。30°C的10%的氯化钠溶液经原水泵4输送至外换热器7中，与外换热器7进行换热后，溶液温度上升至35°C，升温后的氯化钠溶液进行内换热器18中进行换热后，溶液离开内换热器18的温度为60°C，并经布水管13进入到加热器12中进行加热至80°C，升温后的氯化钠溶液经过布水喷头17进行喷淋，在热风15的带动下，蒸汽进入冷凝室2进行冷凝，冷凝后的液体在重力的作用下进入到冷凝水水槽8，此时温度为50°C，并经外换热器7与原水换热后，经冷凝水出口 21排出。蒸发室I中未被蒸发的浓氯化钠溶液进入到浓盐水水槽23，此时的温度为55°C，浓盐水水槽23中上部的溶液在循环泵6的作用下，经过浓盐水循环管22与原水混合后，进入下一次蒸发结晶循环，而浓盐水水槽23底部的结晶盐通过结晶盐出口管5排出。
[0026] 本发明已通过优选的实施方式进行了详尽的说明。然而，通过对前文的研读，对各实施方式的变化和增加也是本领域的一般技术人员所显而易见的。申请人的意图是所有这些变化和增加落在了本发明权利要求的保护范围中。
[0027] 相似的编号通篇指代相似的元件。为清晰起见，在附图中可能有将某些线、层、元件、部件或特征放大的情况。
[0028] 本文中使用的术语仅为对具体的实施例加以说明，其并非意在对本发明进行限制。除非另有定义，本文中使用的所有术语(包括技术术语和科学术语)均与本发明所属领域的一般技术人员的理解相同。还须明确的是，除在本文中有明确的定义外，诸如字典中通常定义的术语应该解释为在本说明书以及相关技术的语境中可具有一致的意思，而不应解释的理想化或过分形式化。公知的功能或结构处于简要和清楚地考虑或不再赘述。
Claims (10)
1.一种低温高效节能蒸发结晶设备，包括蒸发室和冷凝室，其特征在于:所述蒸发室包括蒸发室外壳和设置于蒸发室外壳内从上至下布置的布水层、蒸发层和浓盐水水槽，所述布水层包括布水管路，所述布水管路向下设置有布水喷头，所述蒸发层包括支撑板和设置于支撑板上的填料；所述冷凝室固定于蒸发室外壳内，所述冷凝室包括冷凝室外壳和设置于冷凝室外壳内的从上至下布置的风扇，内换热器和冷凝水水槽；所述内换热器的出水端与进水端分别与布水管路和原水管相连通，所述冷凝水水槽通过冷凝水排水管与设于蒸发室外部的外换热器相连通。
2.根据权利要求1所述的蒸发结晶设备，其特征在于，所述冷凝室通过支撑板固定于蒸发室外壳内。
3.根据权利要求1所述的蒸发结晶设备，其特征在于，所述布水管路上设有加热器和流量控制阀，所述布水喷头的喷嘴直径为0.5〜3mm。
4.根据权利要求1所述的蒸发结晶设备，其特征在于，所述冷凝室外壳的下部侧壁上设有阻水板，以阻止冷凝水进入蒸发室，所述阻水板与冷凝水水槽相连。
5.根据权利要求1所述的蒸发结晶设备，其特征在于，所述内换热器为翅式换热器，所述外换热器为套管换热器或板式换热器。
6.根据权利要求1所述的蒸发结晶设备，其特征在于，所述填料为双向波填料。
7.根据权利要求1所述的蒸发结晶设备，其特征在于，所述浓盐水水槽通过浓盐水循环管与原水管相连通，所述浓盐水循环管位于外换热器下部，所述浓盐水循环管上设有循环泵。
8.根据权利要求1-8任一项所述的蒸发结晶设备，其特征在于，所述蒸发结晶设备的外部设有保温层。
9.一种低温高效节能蒸发结晶工艺，其特征在于:包括以下步骤:(1)原水经泵提升后，先后进入外换热器与内换热器进行换热，然后加热至设定温度后，原水进行喷淋蒸发；(2)对蒸发后的水蒸气进行结晶冷凝，冷凝后的液体经过外换热器换热后排出，未蒸发的浓盐水经循环泵提升后与原水混合后进入下一蒸发结晶过程。
10.根据权利要求10所述的工艺，其特征在于:所述工艺的温度为O〜80°C，压力为-0.1 〜0.2MPa。
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| CN104692477A (zh) * | 2015-02-26 | 2015-06-10 | 江苏新纪元环保有限公司 | 一体化结构水处理低温低压蒸发器 |
| CN107185268A (zh) * | 2017-07-22 | 2017-09-22 | 威海沁和实业有限公司 | 通风冷却结晶塔 |
| CN107585937A (zh) * | 2017-09-25 | 2018-01-16 | 上海缘脉实业有限公司 | 一种废水零排放工艺 |
| CN110844953A (zh) * | 2018-08-21 | 2020-02-28 | 国家能源投资集团有限责任公司 | 蒸发装置 |
| CN111921223A (zh) * | 2020-08-21 | 2020-11-13 | 山东肥城精制盐厂有限公司 | 一种深井盐高温熟化节能生产线 |
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