CN201534784U - Horizontal falling film evaporation multi-effect distillation seawater desalination evaporator - Google Patents
Horizontal falling film evaporation multi-effect distillation seawater desalination evaporator Download PDFInfo
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- CN201534784U CN201534784U CN2009200468919U CN200920046891U CN201534784U CN 201534784 U CN201534784 U CN 201534784U CN 2009200468919 U CN2009200468919 U CN 2009200468919U CN 200920046891 U CN200920046891 U CN 200920046891U CN 201534784 U CN201534784 U CN 201534784U
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- 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
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Abstract
The utility model relates to a horizontal falling film evaporation multi-effect distillation seawater desalination evaporator, which belongs to the technical field of seawater desalination devices. Heat exchange pipe beams (4) of the evaporator are obliquely arranged in the flowing direction of steam in heat exchange pipes, so the steam inlet end of horizontal heat exchange pipes is higher than the outlet end for forming a certain height difference, external flowing motive power is added for condensing water to flow out of the heat exchange pipes, the condensed condensing water can fast flow out from the heat exchange pipes, the liquid film thickness remained on the surface of the heat exchange pipes can be reduced, the heat resistance can be reduced, the heat exchange factor can be improved, at the same time, the steam flowing cross area is enlarged, the steam flowing resistance is reduced, the steam condensing temperature is raised, the heat exchange temperature difference is increased, the integral heat exchange performance of the evaporator is improved, the heat transfer area of the unit water preparation quantity can be reduced, and the material cost can be saved.
Description
(1) technical field
The utility model relates to a kind of distillation seawater desalination vaporizer.Belong to the sea water desalinating plant technical field.
(2) background technology
In short supply along with Freshwater resources, the Chinese government pays much attention to desalination technology.Effect distillation seawater desalinating device of multi in the desalination technology is to adopt heat energy system water, and the quality height of system water has vast potential for future development.
Horizontal pipe falling film evaporation device in the multiple-effect distillation sea water desalting vaporizer, it has single process (as Fig. 1), two flow processs (as Fig. 2) and multipaths structure formation.Heat transfer tube and cylindrical shell are horizontally disposed, and heat transfer tube is consistent with horizontal reference line with the cylindrical shell medullary ray.As Fig. 1 single process vaporizer by evaporator tube 24, heat-exchanging tube bundle 4, seawater spraying device 19, liquid-blocking device 6, fronttube plate 20, fronttube plate shrouding 21, back tube plate 22, back tube plate shrouding 23, drive that steam inlet 1, water outlet end cap 5, working steam coagulate water out 3, concentrated seawater connecting leg 7, the fresh water connecting leg 8 that condenses, non-condensable gases relief outlet 17 etc. constitute; The difference of two flow process vaporizers such as Fig. 2 and single process vaporizer is that heat-exchanging tube bundle is divided into the first pass and second flow process, and it has Duoed the second water outlet end cap 26 than the single process vaporizer; Equally, the heat-exchanging tube bundle of multipaths vaporizer is divided into a mutually deserved N flow process, and the water outlet end cap is separated the also corresponding change of flow process for satisfying.The single process of present horizontal falling film evaporation, two flow processs and multipaths vaporizer heat-exchanging tube bundle all adopt horizontally disposed, manage interior vapor condenses and manage outer seawater falling film evaporation, the secondary steam that previous evaporator evaporation is come out is introduced next vaporizer and is distilled water as heating steam and in next vaporizer with fixed attention, carry out so successively, each vaporizer and process thereof are called an effect, so just can form economic benefits and social benefits, triple effect, quadruple effect, multiple-effect evaporator, distilled water is the fresh water that will produce.
For present horizontal pipe falling film evaporation device, the long vaporizer of heat-exchanging tube bundle particularly, lime set in the heat transfer tube after the vapor condenses is not easy to discharge, and causes the intraluminal fluid film thickness thicker, and thermal resistance increases, heat exchange property descends, effective internal diameter reduces in the pipe simultaneously, and the steam actual flow velocity improves, and flowing pressure loss increases, cause coagulation temperature to reduce and then influence the heat transfer temperature difference of vaporizer integral body, cause the whole heat exchange property of vaporizer to descend.How to reduce the thickness of liquid film in the vaporizer heat transfer tube, and then reduce thermal resistance, the reduction steam flow pressure-losses, the heat transfer temperature difference of raising vaporizer, the unit that improves vaporizer makes water yield heat interchanging area, and saving material cost becomes the present problem that needs solution.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of horizontal falling film evaporation multiple-effect distillation sea water desalting vaporizer that can reduce the thickness of liquid film in the vaporizer heat transfer tube is provided.
The purpose of this utility model is achieved in that a kind of horizontal falling film evaporation multiple-effect distillation sea water desalting vaporizer, and described vaporizer heat-exchanging tube bundle is in tilted layout along steam flow direction in the heat transfer tube.
The beneficial effects of the utility model are:
The utility model is for addressing the above problem, reduce the lime set amount in the heat transfer tube, guarantee the smooth and easy discharge of lime set energy, the vaporizer heat-exchanging tube bundle is in tilted layout along steam flow direction in the heat transfer tube, make the steam inlet end of horizontal heat exchange tube be higher than exit end, it is poor to have formed certain height, give and coagulate the additional flows outside power of water outflow heat transfer tube, making agglomerative coagulate water can flow out in heat transfer tube fast, reduces the thickness of liquid film that is trapped in the heat transfer tube surface, reduces thermal resistance, improve the coefficient of heat transfer, the steam flow area increases simultaneously, and the steam flow resistance reduces, and the vapor condenses temperature raises, heat transfer temperature difference strengthens, improve the whole heat exchange property of vaporizer, reduce the heat transfer area that unit makes the water yield, save material cost.
(4) description of drawings
Fig. 1 is horizontal pipe falling film evaporation device synoptic diagram in the single process multiple-effect distillation sea water desalting vaporizer in the past.
Fig. 2 is horizontal pipe falling film evaporation device synoptic diagram in the two flow process multiple-effect distillation sea water desalting vaporizers in the past.
Fig. 3 is the utility model single process low temperature quadruple effect distillation seawater desalinating device vaporizer synoptic diagram.
Fig. 4 is the utility model single process low temperature quadruple effect distillation seawater desalinating device vaporizer synoptic diagram.
Fig. 5 is the utility model two flow process low temperature quadruple effect distillation seawater desalinating device vaporizer synoptic diagram.
Among the figure:
Drive steam inlet 1,1st effective evaporator 2, working steam coagulates water out 3, heat-exchanging tube bundle 4, water outlet end cap 5, liquid-blocking device 6, concentrated seawater connecting leg 7, fresh water connecting leg 8 condenses, 2nd effect evaporator 9, triple-effect evaporator 10, quadruple effect evaporator 11, concentrated seawater overboard pump 12, fresh water discharge pump 13, condenser 14, sea intake 15, cooled with seawater water discharge pipe 16, non-condensable gases relief outlet 17, sea intake arm 18, seawater spraying device 19, fronttube plate 20, fronttube plate shrouding 21, back tube plate 22, back tube plate shrouding 23, evaporator tube 24, the second flow process heat-exchanging tube bundle 25, the second water outlet end cap 26;
Cylindrical shell medullary ray A, horizontal reference line B.
(5) embodiment
Scheme one: be applicable to single process horizontal pipe falling film evaporation device, on the basis of former single-action or multiple-effect distillation sea water desalting horizontal pipe falling film evaporation device, vaporizer heat transfer tube and evaporator tube medullary ray are arranged in parallel, evaporator tube is arranged along steam flow direction integral inclination in the vaporizer heat transfer tube, heat-exchanging tube bundle tilts with cylindrical shell along the steam flow direction, and present method need not change former evaporation structure.Be illustrated in figure 3 as single process low temperature quadruple effect distillation seawater desalinating device vaporizer synoptic diagram, it by 1st effective evaporator 2,2nd effect evaporator 9, triple-effect evaporator 10, quadruple effect evaporator 11, concentrated seawater overboard pump 12, fresh water discharge pump 13, drive steam inlet 1, working steam and coagulate water out 3, sea intake 15, seawater and advance that arm 18, concentrated seawater connecting leg 7, cooled with seawater water discharge pipe 16, the fresh water connecting leg 8 that condenses, non-condensable gases relief outlet 17, condenser 14 and Controlling System are not shown etc. to be formed.The all evaporators member all is arranged in the same evaporator tube, and whole evaporator tube tilts, and heat-exchanging tube bundle tilts along steam flow direction in the heat transfer tube, makes the lime set in the heat transfer tube increase mobilization dynamic, flows out in the heat transfer tube more fast.
Scheme two: be applicable to single process, two flow processs, three flow processs and multipaths horizontal pipe falling film evaporation device, be illustrated in figure 4 as single process low temperature quadruple effect distillation seawater desalinating device vaporizer, be illustrated in figure 5 as two flow process low temperature quadruple effect distillation seawater desalinating device vaporizers.The evaporator tube medullary ray is consistent with horizontal reference line, whole evaporator tube is horizontally disposed, heat exchange pore on the steam inlet fronttube plate of each flow process is higher than the heat exchange pore on the exit back tube plate of identical heat transfer tube, every back up pad pore is according to changing with the flow process inclined height, the heat-exchanging tube bundle that has guaranteed each flow process is in tilted layout along steam flow direction formation in the heat transfer tube, make the lime set in the heat transfer tube increase mobilization dynamic, more in the fast process heat transfer tube.
It is single-action or multi-effect distilled water pancake film seawater desalination evaporators that vaporizer in the above scheme is imitated number.System can be band TVC, also can be that not to be with TVC, driving heat source can be steam, hot water or other thermals source.
Claims (3)
1. a horizontal falling film evaporation multiple-effect distillation sea water desalting vaporizer is characterized in that described vaporizer heat-exchanging tube bundle (4) is in tilted layout along steam flow direction in the heat transfer tube.
2. a kind of horizontal falling film evaporation multiple-effect distillation sea water desalting vaporizer according to claim 1, it is characterized in that described vaporizer heat-exchanging tube bundle (4) single process, the relative evaporator tube medullary ray of vaporizer heat transfer tube is arranged in parallel, evaporator tube (24) arranges that along steam flow direction integral inclination in the vaporizer heat transfer tube vaporizer heat-exchanging tube bundle (4) tilts with cylindrical shell along steam flow direction in the vaporizer heat transfer tube.
3. a kind of horizontal falling film evaporation multiple-effect distillation sea water desalting vaporizer according to claim 1, it is characterized in that described vaporizer heat-exchanging tube bundle (4) single process or multipaths, the evaporator tube medullary ray is consistent with horizontal reference line, whole evaporator tube (24) is horizontally disposed, heat exchange pore on each flow process steam inlet fronttube plate of vaporizer is higher than the heat exchange pore on the back tube plate of identical heat transfer tube exit, every back up pad pore is according to changing with the flow process inclined height, and the heat-exchanging tube bundle of each flow process forms along steam flow direction in the heat transfer tube and is in tilted layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200468919U CN201534784U (en) | 2009-07-06 | 2009-07-06 | Horizontal falling film evaporation multi-effect distillation seawater desalination evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200468919U CN201534784U (en) | 2009-07-06 | 2009-07-06 | Horizontal falling film evaporation multi-effect distillation seawater desalination evaporator |
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| Publication Number | Publication Date |
|---|---|
| CN201534784U true CN201534784U (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200468919U Expired - Fee Related CN201534784U (en) | 2009-07-06 | 2009-07-06 | Horizontal falling film evaporation multi-effect distillation seawater desalination evaporator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997719A (en) * | 2012-12-12 | 2013-03-27 | 中冶南方(武汉)威仕工业炉有限公司 | Heat exchanger capable of weakening bundle vibration |
| CN106745425A (en) * | 2017-01-17 | 2017-05-31 | 北京今大禹环境技术股份有限公司 | A kind of efficient tube type falling liquid film steam raising plant for desalinization |
| CN113845163A (en) * | 2021-11-05 | 2021-12-28 | 广东闻扬环境科技有限公司 | Seawater desalination system and seawater desalination method |
| CN113926210A (en) * | 2021-11-05 | 2022-01-14 | 广东闻扬环境科技有限公司 | Horizontal pipe falling film device |
-
2009
- 2009-07-06 CN CN2009200468919U patent/CN201534784U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997719A (en) * | 2012-12-12 | 2013-03-27 | 中冶南方(武汉)威仕工业炉有限公司 | Heat exchanger capable of weakening bundle vibration |
| CN106745425A (en) * | 2017-01-17 | 2017-05-31 | 北京今大禹环境技术股份有限公司 | A kind of efficient tube type falling liquid film steam raising plant for desalinization |
| CN113845163A (en) * | 2021-11-05 | 2021-12-28 | 广东闻扬环境科技有限公司 | Seawater desalination system and seawater desalination method |
| CN113926210A (en) * | 2021-11-05 | 2022-01-14 | 广东闻扬环境科技有限公司 | Horizontal pipe falling film device |
| CN113845163B (en) * | 2021-11-05 | 2024-04-19 | 广东闻扬环境科技有限公司 | Seawater desalination system and seawater desalination method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHUANGLIANG ECO-ENERGEY SYSTEMS CO.,LTD. Free format text: FORMER OWNER: SHUANGLIANG AIR CONDITIONING EQUIPMENT CO LTD, JIANGSU Effective date: 20100909 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee after: Shuangliang Energy Saving System Co., Ltd. Address before: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee before: Shuangliang Air Conditioning Equipment Co., Ltd., Jiangsu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20170706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |