CN203938495U - Low-temperature multi-effect distillation seawater desalination system - Google Patents
Low-temperature multi-effect distillation seawater desalination system Download PDFInfo
- Publication number
- CN203938495U CN203938495U CN201420124789.7U CN201420124789U CN203938495U CN 203938495 U CN203938495 U CN 203938495U CN 201420124789 U CN201420124789 U CN 201420124789U CN 203938495 U CN203938495 U CN 203938495U
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- China
- Prior art keywords
- effect
- evaporation
- tube bundle
- heat
- exchanging tube
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- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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- 239000013535 sea water Substances 0.000 title claims abstract description 30
- 238000004821 distillation Methods 0.000 title claims abstract description 26
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 113
- 238000001704 evaporation Methods 0.000 claims abstract description 86
- 230000008020 evaporation Effects 0.000 claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 230000005494 condensation Effects 0.000 claims abstract description 26
- 238000009833 condensation Methods 0.000 claims abstract description 26
- 239000012153 distilled water Substances 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 15
- 239000012267 brine Substances 0.000 claims description 21
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 21
- 238000010276 construction Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011033 desalting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000006200 vaporizer 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a sea water desalination technical field, in particular to low temperature multiple-effect distillation sea water desalination, include: hot compression unit, casing, condensation effect, spray set and heat exchanger tube bank. The shell is in a parallelepiped shape, and the side and the top of the shell are respectively provided with a sealing door; the interior of the shell is divided into at least two evaporation effects, and all the evaporation effects are arranged together in parallel; heat exchange tube bundles are respectively arranged in the evaporation effect; spraying devices are respectively arranged right above the condensing tube bundles in all the evaporation effects except the built-in condensation effect at the tail end; the inner side of the evaporation effect at the tail end is provided with a condensation effect. The utility model provides a low temperature multiple effect distillation sea water desalination has reduced area to reduce construction cost, can be stable adjust distilled water volume and steam volume.
Description
Technical field
The utility model relates to field of sea water desalting technology, particularly a kind of low temperature multiple-effect distillation seawater desalination system.
Background technology
At present, existing effect distillation seawater desalinating device of multi is the stability of guarantee equipment under higher vacuum in the world, and housing design mostly is round shape, makes apparatus structure compact not, and processing gets up also to exist certain difficulty.Internal heat exchange tubes Shu Fangxiang is consistent with device orientation, and steam flows in pipe, and seawater part in extratubal falling film flow process is evaporated to water vapour, simultaneously the interior steam of pipe outside heating tube when seawater heat release be condensed into water.The steam producing is used as again the heating fluid in the second effect heat-exchanging tube bundle, all repeats this process, to the last an effect between each effect afterwards.For the steam that ensures to enter in pipe condenses completely, heat transfer tube all has longer length, in order to change the heat transfer tube of damage, between every two-effect evaporation device, need to reserve one section of space as maintenance effect, this means that the floor space of vaporizer increases and correspondingly increase construction investment.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of floor space little, reduce investment, and the low temperature multiple-effect distillation seawater desalination system that the distillation water yield and quantity of steam are regulated that can be stable.
For solving the problems of the technologies described above, the utility model provides a kind of low temperature multiple-effect distillation seawater desalination system, comprising: thermal compression unit, housing, condensation effect, strong brine collection device, condensed water collecting device, distilled water collection device, spray equipment and heat-exchanging tube bundle.Described housing is parallelepiped shape, on described housing, is provided with closing door, enters described enclosure interior when overhauling; Described enclosure interior is separated at least two evaporation effects, and all described evaporation effects are set up in parallel together; In all described evaporation effect except the described built-in condensation effect of end, be provided with described strong brine collection device and described condensed water collecting device.In described evaporation effect, be respectively arranged with described heat-exchanging tube bundle, described heat-exchanging tube bundle is parallel with the bottom of described housing, and the orientation of the bearing of trend of described heat-exchanging tube bundle and described evaporation effect is orthogonal.Described heat-exchanging tube bundle top described in other except the described built-in condensation effect of end in evaporation effect is respectively arranged with described spray equipment, and described spray equipment is communicated to the outside of described housing by conduit.In the described evaporation effect of end, described heat-exchanging tube bundle side is provided with described condensation effect, and described condensation effect below is provided with described distilled water collection device.The input terminus of described thermal compression unit is connected with the described evaporation effect of end, and the output terminal of described thermal compression unit is connected with the described evaporation effect of head end.In the described evaporation effect of head end, be provided with air inlet port.
Further, also comprise: condensate pump, strong brine pump and distilled water pump.Described condensate pump is connected with described condensation water channel; Described strong brine pump is connected with described strong brine road; Described distilled water pump is connected with described distilled water collection device.
Further, thermal compression unit comprises two thermo compression devices.The input terminus of two described thermo compression devices is connected with the described evaporation effect of end respectively, and the output terminal of two described thermo compression devices is connected with the described evaporation effect of head end respectively.
Further, to be matrix-style arranged together for described heat-exchanging tube bundle.
The low temperature multiple-effect distillation seawater desalination system that the utility model provides, housing adopts parallelepiped structure, makes housing have less surface-area, has saved case material, has reduced heat lost by radiation.In in system, adopted thermal compression unit, can be stable the distillation water yield and quantity of steam are regulated.In addition, the low temperature multiple-effect distillation seawater desalination system that the utility model provides, has removed maintenance effect, has significantly reduced the floor space of whole low temperature multiple-effect distillation seawater desalination system, effectively reduces cost of investment.
Brief description of the drawings
The low temperature multiple-effect distillation seawater desalination system structural representation that Fig. 1 provides for the utility model embodiment.
Embodiment
Referring to Fig. 1, the low temperature multiple-effect distillation seawater desalination system that the utility model embodiment provides, comprising: thermal compression unit, housing 14, condensation effect 12, strong brine collection device 7, condensed water collecting device 9, distilled water collection device, spray equipment 4, heat-exchanging tube bundle 5, condensate pump 6, strong brine pump 10 and distilled water pump 11.Referring to Fig. 1, housing 14 is parallelepiped shape, and the forward and backward both sides of housing 14 are respectively arranged with closing door (entering housing 14 inside when overhauling); Housing 14 interior separations become at least two evaporation effect 6(the present embodiment to be separated into seven evaporation effects 6, condensation effect is built in the 7th evaporation effect, from left to right be called the first evaporation effect, the second evaporation effect, the 3rd evaporation effect, the 4th evaporation effect, the 5th evaporation effect, the 6th evaporation effect, the 7th evaporation effect and condensation effect), and all evaporations effect 6 is set up in parallel together (being from left to right arranged in a row); Wherein, in the first evaporation effect, be provided with condensed water collecting device and strong brine collection device, in built-in condensation effect 12(the present embodiment except end, the evaporation effect 6 of end is the 7th evaporation effect) be provided with strong brine collection device 7 and distilled water collection device 9 in other all evapn effect 6 in addition, in the first evaporation effect, the second evaporation effect, the 3rd evaporation effect, the 4th evaporation effect, the 5th evaporation effect, the 6th evaporation effect, the 7th evaporation effect, be provided with strong brine collection device 7 and distilled water collection device 9.In evaporation effect 6, be respectively arranged with heat-exchanging tube bundle 5, it is arranged together that heat-exchanging tube bundle 5 is matrix-style, and heat-exchanging tube bundle 5 is parallel with the bottom of housing 14, and the bearing of trend of heat-exchanging tube bundle 5 is orthogonal with the orientation of evaporation effect 6.Between two adjacent evaporation effects 6, be provided with vapour passage, make the steam of previous stage evaporation effect 6 be input to the ingress of heat-exchanging tube bundle 5 in rear one-level evaporation effect 6.Directly over heat-exchanging tube bundle 5 in all evapn effect 6 except the built-in condensation effect 12 of end, be respectively arranged with spray equipment 4, the heat-exchanging tube bundle 5 in the first evaporation effect, the second evaporation effect, the 3rd evaporation effect, the 4th evaporation effect, the 5th evaporation effect, the 6th evaporation effect, the 7th evaporation effect directly over be respectively arranged with spray equipment 4, spray equipment 4 is communicated to the outside of housing 14 by conduit, for inputting seawater from salt water supply device 13.The evaporation of end is imitated 6 interior heat-exchanging tube bundle 5 sides and is provided with condensation effect 12, and condensation is imitated 12 belows and is provided with distilled water collection device.The input terminus of thermal compression unit is connected with the evaporation of end effect 6, the output terminal of thermal compression unit is connected with the evaporation of head end effect 6, in the present embodiment, thermal compression unit is made up of two thermo compression devices 2, the input terminus of two thermo compression devices 2 is connected with the evaporation effect 6 of end respectively, the output terminal of two thermo compression devices 2 is imitated in 6(the present embodiment with the evaporation of head end respectively, and the evaporation effect 6 of head end refers to the first evaporation effect) connect.In the evaporation effect 6 of head end, be provided with air inlet port, input steam for other steam turbines 3 by outside.Referring to Fig. 1, condensate pump 8 is connected with condensed water collecting device 9, for exporting the water of condensation of generation; Strong brine pump 10 is connected with strong brine collection device 7, the strong brine that water output is collected; Distilled water pump 11 is connected with distilled water collection device, for exporting the distilled water of generation.
Referring to Fig. 1, the low temperature multiple-effect distillation seawater desalination system that the utility model embodiment provides is in application process, and in the heat transfer tube 5 in the first evaporation effect, the source of steam has three kinds: the first, the low-pressure steam in low-pressure steam source 1 is respectively by being passed to after 2 compressions of two thermo compression devices in the heat-exchanging tube bundle 5 in the first evaporation effect (T pattern); The second, outside other steam turbine 3 is transported to steam in the heat-exchanging tube bundle 5 in the first evaporation effect (E pattern) by the air inlet port in the first evaporation effect; Three, open a thermo compression device 2 and be filled with steam, pass into part steam (T+E pattern) by outside other steam turbines 3 simultaneously.After steam in the first evaporation effect has been filled with, seawater is transported to spray equipment 4 by pipeline, by spray equipment 4, seawater is sprayed onto on heat-exchanging tube bundle 5, on heat-exchanging tube bundle 5, form liquid film and carry out heat exchange with the steam in heat-exchanging tube bundle 5, make part evaporation of seawater, the steam that evaporation forms is transferred to by vapour passage in the heat-exchanging tube bundle 5 of evaporation effect 6 of rear one-level and carries out heat exchange, by that analogy, imitate in the heat-exchanging tube bundle 5 in 6 until steam is sent to the evaporation of end, the steam in the evaporation effect 6 of end can be extracted into again in two thermo compression devices 2.In evaporation effect endways 6, be provided with condensation effect 12 and distilled water collection device, can produce a large amount of distilled water and export by distilled water pump 11.The collected water of condensation of condensed water collecting device 9 of the 6 interior settings of evaporation effect in addition, is exported by condensate pump 8.The collected strong brine of strong brine collection device 7 is exported by strong brine pump 10.In the process of application, can adopt according to actual needs T pattern, E pattern or T+E pattern, the distillation water yield and quantity of steam are regulated.
The low temperature multiple-effect distillation seawater desalination system that the utility model embodiment provides, housing adopts parallelepiped structure, builds simply, makes housing have less surface-area simultaneously, has saved case material, has reduced heat lost by radiation.In in device, adopted thermal compression unit, can be stable the distillation water yield and quantity of steam are regulated.In addition, the low temperature multiple-effect distillation seawater desalination system that the utility model provides, has removed maintenance effect, has significantly reduced the floor space of whole low temperature multiple-effect distillation seawater desalination system, effectively reduces cost of investment.In system, be divided into multiple (as 7) evaporation effect, condensation effect is built in the evaporation effect of end, the heat-exchanging tube bundle of each effect compact and reasonable more of arranging in housing.Heat-exchanging tube bundle is transverse horizontal to be arranged, vertical with the orientation of evaporation effect, spray equipment parallels with heat-exchanging tube bundle, without spray dead angle, improves heat utilization ratio, avoids producing local " dry wall " phenomenon.The low temperature multiple-effect distillation seawater desalination system that the utility model embodiment provides does not need to arrange maintenance effect can carry out heat transfer tube maintenance or replacing easily and effectively.In addition, three kinds of operational modes (T pattern, E pattern or T+E pattern) can be carried out dual regulation to the water yield (after desalination) and quantity of steam balance, and varying load regulates 50%-100%, adjusts energy running balance.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a low temperature multiple-effect distillation seawater desalination system, is characterized in that, comprising: thermal compression unit, housing, condensation effect, strong brine collection device, condensed water collecting device, distilled water collection device, spray equipment and heat-exchanging tube bundle;
Described housing is parallelepiped shape, on described housing, is provided with closing door, enters described enclosure interior when overhauling; Described enclosure interior is separated at least two evaporation effects, and all described evaporation effects are set up in parallel together; In all described evaporation effect except the described built-in condensation effect of end, be provided with described strong brine collection device and described condensed water collecting device;
In described evaporation effect, be respectively arranged with described heat-exchanging tube bundle, described heat-exchanging tube bundle is parallel with the bottom of described housing, and the orientation of the bearing of trend of described heat-exchanging tube bundle and described evaporation effect is orthogonal;
Described heat-exchanging tube bundle top in other all described evaporation effects except the described built-in condensation effect of end is respectively arranged with described spray equipment, and described spray equipment is communicated to the outside of described housing by conduit;
In the described evaporation effect of end, there is described condensation effect described heat-exchanging tube bundle side, and described condensation effect below is provided with described distilled water collection device;
The input terminus of described thermal compression unit is connected with the described evaporation effect of end, and the output terminal of described thermal compression unit is connected with the described evaporation effect of head end;
In the described evaporation effect of head end, be provided with air inlet port.
2. low temperature multiple-effect distillation seawater desalination system according to claim 1, is characterized in that, also comprises: condensate pump, strong brine pump and distilled water pump;
Described condensate pump is connected with described condensation water channel; Described strong brine pump is connected with described strong brine road; Described distilled water pump is connected with described distilled water collection device.
3. low temperature multiple-effect distillation seawater desalination system according to claim 1, is characterized in that, thermal compression unit comprises two thermo compression devices;
The input terminus of two described thermo compression devices is connected with the described evaporation effect of end respectively, and the output terminal of two described thermo compression devices is connected with the described evaporation effect of head end respectively.
4. low temperature multiple-effect distillation seawater desalination system according to claim 1, is characterized in that, it is arranged together that described heat-exchanging tube bundle is matrix-style.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124789.7U CN203938495U (en) | 2014-03-19 | 2014-03-19 | Low-temperature multi-effect distillation seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124789.7U CN203938495U (en) | 2014-03-19 | 2014-03-19 | Low-temperature multi-effect distillation seawater desalination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203938495U true CN203938495U (en) | 2014-11-12 |
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ID=51857828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420124789.7U Expired - Lifetime CN203938495U (en) | 2014-03-19 | 2014-03-19 | Low-temperature multi-effect distillation seawater desalination system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203938495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053111A (en) * | 2016-06-21 | 2016-10-26 | 首钢京唐钢铁联合有限责任公司 | Method for judging failure of seawater desalination equipment |
| CN109372806A (en) * | 2018-10-24 | 2019-02-22 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of TVC integrated system for large-scale low-temperature multi-effect seawater desalination device |
-
2014
- 2014-03-19 CN CN201420124789.7U patent/CN203938495U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053111A (en) * | 2016-06-21 | 2016-10-26 | 首钢京唐钢铁联合有限责任公司 | Method for judging failure of seawater desalination equipment |
| CN106053111B (en) * | 2016-06-21 | 2019-04-09 | 首钢京唐钢铁联合有限责任公司 | Method for judging failure of seawater desalination equipment |
| CN109372806A (en) * | 2018-10-24 | 2019-02-22 | 国家海洋局天津海水淡化与综合利用研究所 | A kind of TVC integrated system for large-scale low-temperature multi-effect seawater desalination device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |
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| CX01 | Expiry of patent term |