CN203558881U - Forward overlaid horizontal falling film multi-effect evaporation sea water desalination device - Google Patents
Forward overlaid horizontal falling film multi-effect evaporation sea water desalination device Download PDFInfo
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- CN203558881U CN203558881U CN201320684081.2U CN201320684081U CN203558881U CN 203558881 U CN203558881 U CN 203558881U CN 201320684081 U CN201320684081 U CN 201320684081U CN 203558881 U CN203558881 U CN 203558881U
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- condensers
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- seawater
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- 239000013535 sea water Substances 0.000 title claims abstract description 65
- 230000008020 evaporation Effects 0.000 title claims abstract description 29
- 238000001704 evaporation Methods 0.000 title claims abstract description 29
- 239000011552 falling film Substances 0.000 title claims abstract description 8
- 238000010612 desalination reaction Methods 0.000 title abstract 4
- 230000000694 effects Effects 0.000 claims abstract description 64
- 239000012267 brine Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 16
- 238000011033 desalting Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 9
- 230000005494 condensation Effects 0.000 claims description 9
- 239000013505 freshwater Substances 0.000 claims description 8
- 210000000056 organ Anatomy 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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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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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a forward overlaid horizontal falling film multi-effect evaporation sea water desalination device, belonging to the technical field of sea water desalination. A plurality of evaporators/condensers of the device are in a plurality of groups at different heights, the evaporators/condensers of each group are distributed in a horizontal arrangement, and the groups are of a vertical overlaid structure. According to sea water inflowing process, the evaporators/condensers are divided into a plurality of sections, each section supplies sea water in a parallel feeding manner, the evaporators/condensers of each section can belong to the same one group or different groups. Sea water flows in the evaporators/condensers of the same one section in parallel, the concentrated brine generated in the last effect of the former section replaces fresh sea water and flows in all effects of next section in a parallel connection manner for spraying, and the concentrated brine of the last effect of last section is discharged from the device. The evaporators/condensers of the device are vertically overlaid, so that the spraying density of sea water is more easily within the best range; and the occupied area is greatly reduced, and the forward overlaid horizontal falling film multi-effect evaporation sea water desalination device is applicable to situations relatively lacking of land resources.
Description
Technical field
The utility model proposes a kind of in-line arrangement stacked-up type level pipe falling liquid film desalting seawater through multi-effect evaporation device, form a kind of a plurality of evaporator/condensers level and arrange, save the level pipe falling liquid film low-temperature multi-effect evaporation seawater desalinization device of floor space, good economy performance along row and upper and lower stacked combination.Belong to field of sea water desalting technology.
Background technology
Desalting seawater through multi-effect evaporation device is a kind of device that thermal source carries out sea water desaltination as main energy sources of take, it is comprised of a plurality of evaporator/condensers, the secondary steam that previous evaporator/condensers produces, as the thermal source of next evaporator/condensers, is therefore called one " effect " by each evaporator/condensers.The evaporator/condensers of respectively imitating of desalting seawater through multi-effect evaporation device in the past all adopts horizontally disposedly, respectively imitates evaporator/condensers and is horizontally disposed, is generally arranged to adjacent evaporator/condensers and joins end to end.Shell-side charging seawater by seawater spraying device be sprayed onto horizontally disposed heating surface bank above, the falling liquid film that seawater forms level pipe surface in tube bank outside under action of gravity flows, seawater is heated in falling liquid film flow process so that part evaporation of seawater generates water vapour, i.e. secondary steam.Secondary steam tube bank between or both sides along pipe parallel direction, flow to the tail end of this evaporator/condensers, the tail end bobbin carriage of this effect evaporator/condensers is imitated the admission bobbin carriage of evaporator/condensers simultaneously as next, this steam enters in the pipe of next effect evaporator/condensers in afterbody bobbin carriage like this, thermal source as next effect evaporator/condensers, heat release be condensed into water in pipe, for the steam that guarantees to enter in pipe condenses completely, pipe all has longer length.Each imitates evaporator/condensers by that analogy, the main body flow direction that forms shell-side steam be along tube bank parallel direction by an effect evaporator/condensers to rear flow.For fear of seawater fouling on heat-transfer surface, adopt low-temperature evaporation technology, each is imitated in evaporator/condensers all in vacuum state.
The desalting seawater through multi-effect evaporation device that evaporator/condensers joins end to end horizontal has larger length, and floor space is large; It is best that seawater spraying density is often difficult to reach.
Summary of the invention
The utility model proposes a kind of in-line arrangement stacked-up type level pipe falling liquid film desalting seawater through multi-effect evaporation device, this sea water desalinating plant should adopt upper and lower stacked structure, makes sea water desalinating plant have less floor space, adapts to construction place property better; Can reduce or cancel the accessibility of respectively imitating the space for maintenance between evaporator/condensers and can guarantee maintenance, further reduce device total length; Same level direction device length reduces, and has alleviated the difficulty that equipment that device levelness requires to bring is installed.
The technical solution of the utility model is: a kind of in-line arrangement stacked-up type level pipe falling liquid film desalting seawater through multi-effect evaporation device, comprise a plurality of evaporator/condensers, it is characterized in that: described evaporator/condensers is divided into some groups in different heights, every group comprises 2-5 effect horizontal pipe falling film evaporation/condenser, the evaporator/condensers of every group is horizontal in-line arrangement, next group evaporator/condensers is positioned over the below of last group of evaporator/condensers, presents upper and lower stacked structure; According to seawater water inlet flow process, evaporator/condensers is divided into again to 2-3 section, every section comprises 2-5 effect horizontal pipe falling film evaporation/condenser, the evaporator/condensers of imitating of every section belongs to same group or belong to not on the same group; working steam enters the evaporator/condensers of imitating of every section successively with series system, seawater is heated by steam and part evaporation in evaporator/condensers, the secondary steam generating enters next effect evaporator/condensers as heat source, the evaporator/condensers of every section adopts parallel fill-out mode to supply seawater, fresh seawater is parallel enter first paragraph respectively imitate evaporator/condensers, the seawater that the salinity that the last period, last effect evaporator/condensers was discharged improves is as the water inlet of rear one section of evaporator/condensers, and enter latter one section and respectively imitate evaporator/condensers so that the specific liquid rate of 0.03-0.08 is parallel, the seawater that the salinity producing in the last effect evaporator/condensers of respectively imitating evaporator/condensers in same section improves enters next effect evaporator/condensers bottom, outside the strong brine discharger that last effect evaporator/condensers of final stage produces, secondary steam condensation in condenser that last effect evaporator/condensers of final stage produces becomes fresh water, the fresh water of imitating vapor condensation generation in evaporation/condensation organ pipe as product water discharger together with each.
Effect of the present utility model and benefit are: this sea water desalinating plant becomes in-line arrangement stacked-up type by the end to end horizontal arranging mode of the adjacent evaporator/condensers of traditional desalting seawater through multi-effect evaporation device, the evaporator/condensers of this in-line arrangement stacked-up type level pipe falling liquid film desalting seawater through multi-effect evaporation device is divided into some groups in different heights, the horizontal in-line arrangement of evaporator/condensers of every group, press the spray form of seawater, these evaporator/condensers are divided into again some sections, the evaporator/condensers of every section adopts parallel fill-out mode to supply seawater, the evaporator/condensers of each section can belong to same group, also can belong to not on the same group, the floor space of this device is approximately horizontally disposed area divided by the number of plies, be applicable to the applications of land resources relative shortage, the minimizing of evaporator/condensers quantity in same level, can reduce or cancel the replace tubes space for maintenance between evaporator/condensers, and can carry out easily heat-transfer pipe and change operation, evaporator/condensers is stacked up and down, can solve the contradiction of making the water yield and tube bank specific liquid rate, makes seawater spraying density in evaporator/condensers more easily in optimum range, plant area space is compact, also can reduce the length of TVC pipeline, feedwater piping.
Accompanying drawing explanation
The systematic schematic diagram of the in-line arrangement stacked-up type level pipe falling liquid film desalting seawater through multi-effect evaporation device that Fig. 1 is comprised of a plurality of evaporator/condensers.
In figure: A, working steam, the seawater that B, salinity improve, C, secondary steam, D, concentrated seawater, E, fresh seawater, F, fresh water.
Embodiment
Fig. 1 shows the systematic schematic diagram of the in-line arrangement stacked-up type level pipe falling liquid film desalting seawater through multi-effect evaporation device being comprised of a plurality of evaporator/condensers, in figure, comprise No. 1 effect evaporator/condensers to No. 12 effect evaporator/condensers, these evaporator/condensers are divided into three groups, every group comprises quadruple effect evaporator/condensers, No. 1 effect evaporator/condensers is imitated evaporator/condensers to No.4, No. 5 effect evaporator/condensers are imitated evaporator/condensers to No.8, No. 9 effect evaporator/condensers to No.12 effect evaporator/condensers is respectively one group, these evaporator/condensers are divided into again three sections, the No. 5 effect evaporator/condensers that the No. 1 effect evaporator/condensers that first paragraph comprises one group of the superiors is one group to No.4 effect evaporator/condensers and middle layer, in the middle of second segment comprises, to be No. 6 effect evaporator/condensers imitate evaporator/condensers to No.8 for the rear triple effect of a group, the 3rd section of No. that comprises one group of orlop 9 effect evaporator/condensers are imitated evaporator/condensers to No.12.Working steam A enters successively and respectively imitates evaporator/condensers with series system, and seawater is parallel to be entered and respectively imitate evaporator/condensers in same section.The No. 1 effect evaporator/condensers that fresh seawater E is parallel enters first paragraph is imitated evaporator/condensers to No.5, in each effect evaporator/condensers, the seawater spraying device on tube bank top is evenly sprayed onto in tube bank by seawater, seawater is heated by working steam A and part evaporation in No. 1 effect evaporator/condensers, the water vapour generating is that secondary steam C enters next effect evaporator/condensers as heat source, the seawater of spray is respectively imitated the secondary steam C heating being produced by last effect in evaporator/condensers and partly evaporates at all the other, first paragraph respectively imitate the last effect evaporator/condensers in evaporator/condensers in the seawater B that improves of salinity enter next effect evaporator/condensers bottom, until last effect of this section is No. 5 effect evaporator/condensers.The evaporator/condensers of respectively imitating that the seawater B that the salinity producing in last effect evaporator/condensers in the last period improves enters next section with parallel way sprays, seawater B that the salinity being produced by first paragraph No. 5 effect evaporator/condensers improves is parallel enter second segment respectively imitate evaporator/condensers, being No. 6 effect evaporator/condensers imitates evaporator/condensers to No.8, similar with the process in first paragraph, in last effect evaporator/condensers of second segment, to be the seawater B that improves of the salinity that produces in No. 8 effect evaporator/condensers enter the evaporator/condensers of respectively imitating of the 3rd section with parallel way is that No. 9 effect evaporator/condensers to No.12 effect evaporator/condensers sprays, last effect evaporator/condensers of final stage is that the strong brine D of No. 12 effect evaporator/condensers discharges this device, each is imitated in evaporation/condensation organ pipe becomes fresh water F after hot steam condensation, and enter next effect evaporator/condensers steam discharge bobbin carriage by this effect evaporator/condensers steam discharge bobbin carriage bottom, until be that No. 12 effect evaporator/condensers are discharged by last effect evaporator/condensers of final stage, last effect evaporator/condensers of final stage is that after the secondary steam C of No. 12 effect evaporator/condensers generations enters condenser and fresh seawater E heat exchange, condensation becomes fresh water F, fresh water together with its discharge is used as product water.
Adopt above-mentioned technical scheme, no matter device has how many effect evaporator/condensers, these evaporator/condensers are not that fully horizontal in-line arrangement is arranged, but a plurality of evaporator/condensers levels are arranged along row and upper and lower stacked combination, evaporator/condensers is divided into some groups, every group comprises 2-5 effect horizontal pipe falling film evaporation/condenser, the evaporator/condensers of every group is horizontal in-line arrangement, next group evaporator/condensers is positioned over the below of last group of evaporator/condensers, present upper and lower stacked structure, sea water desalinating plant with the horizontal in-line arrangement of tradition is compared, its floor space is approximately horizontally disposed area divided by the number of plies, can dwindle at double, can solve and make the water yield and the contradiction of restraining specific liquid rate, make seawater spraying density in evaporator/condensers more easily in optimum range, the device that same level is arranged is compared, in identical spray flux situation, specific liquid rate reaches 0.03-0.08.
Claims (1)
1. an in-line arrangement stacked-up type level pipe falling liquid film desalting seawater through multi-effect evaporation device, comprise a plurality of evaporator/condensers, it is characterized in that: described evaporator/condensers is divided into some groups in different heights, every group comprises 2-5 effect horizontal pipe falling film evaporation/condenser, the evaporator/condensers of every group is horizontal in-line arrangement, next group evaporator/condensers is positioned over the below of last group of evaporator/condensers, presents upper and lower stacked structure; According to seawater water inlet flow process, evaporator/condensers is divided into again to 2-3 section, every section comprises 2-5 effect horizontal pipe falling film evaporation/condenser, the evaporator/condensers of imitating of every section belongs to same group or belong to not on the same group; working steam enters the evaporator/condensers of imitating of every section successively with series system, seawater is heated by steam and part evaporation in evaporator/condensers, the secondary steam generating enters next effect evaporator/condensers as heat source, the evaporator/condensers of every section adopts parallel fill-out mode to supply seawater, fresh seawater is parallel enter first paragraph respectively imitate evaporator/condensers, the seawater that the salinity that the last period, last effect evaporator/condensers was discharged improves is as the water inlet of rear one section of evaporator/condensers, and enter latter one section and respectively imitate evaporator/condensers so that the specific liquid rate of 0.03-0.08 is parallel, the seawater that the salinity producing in the last effect evaporator/condensers of respectively imitating evaporator/condensers in same section improves enters next effect evaporator/condensers bottom, outside the strong brine discharger that last effect evaporator/condensers of final stage produces, secondary steam condensation in condenser that last effect evaporator/condensers of final stage produces becomes fresh water, the fresh water of imitating vapor condensation generation in evaporation/condensation organ pipe as product water discharger together with each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684081.2U CN203558881U (en) | 2013-11-03 | 2013-11-03 | Forward overlaid horizontal falling film multi-effect evaporation sea water desalination device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684081.2U CN203558881U (en) | 2013-11-03 | 2013-11-03 | Forward overlaid horizontal falling film multi-effect evaporation sea water desalination device |
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| CN203558881U true CN203558881U (en) | 2014-04-23 |
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| CN201320684081.2U Expired - Lifetime CN203558881U (en) | 2013-11-03 | 2013-11-03 | Forward overlaid horizontal falling film multi-effect evaporation sea water desalination device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570091A (en) * | 2013-11-03 | 2014-02-12 | 大连理工大学 | Sequentially stacked horizontal-tube falling film multiple-effect evaporation sea water desalinating device |
| CN106166394A (en) * | 2016-08-26 | 2016-11-30 | 创源科瑞环保科技（北京）有限公司 | Humidify dehumidification system and apply its distillating method |
| CN110563234A (en) * | 2019-09-02 | 2019-12-13 | 龚建国 | low-energy-consumption seawater desalination system and method |
-
2013
- 2013-11-03 CN CN201320684081.2U patent/CN203558881U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103570091A (en) * | 2013-11-03 | 2014-02-12 | 大连理工大学 | Sequentially stacked horizontal-tube falling film multiple-effect evaporation sea water desalinating device |
| CN106166394A (en) * | 2016-08-26 | 2016-11-30 | 创源科瑞环保科技（北京）有限公司 | Humidify dehumidification system and apply its distillating method |
| CN110563234A (en) * | 2019-09-02 | 2019-12-13 | 龚建国 | low-energy-consumption seawater desalination system and method |
| CN110563234B (en) * | 2019-09-02 | 2021-12-03 | 衡阳远通物流有限公司 | Low-energy-consumption seawater desalination system and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140423 |