CN202284171U - Low-temperature multi-effect evaporation seawater desalinization device - Google Patents
Low-temperature multi-effect evaporation seawater desalinization device Download PDFInfo
- Publication number
- CN202284171U CN202284171U CN2011204080666U CN201120408066U CN202284171U CN 202284171 U CN202284171 U CN 202284171U CN 2011204080666 U CN2011204080666 U CN 2011204080666U CN 201120408066 U CN201120408066 U CN 201120408066U CN 202284171 U CN202284171 U CN 202284171U
- Authority
- CN
- China
- Prior art keywords
- condenser
- vaporizer
- effect
- low
- strong brine
- Prior art date
- 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 - Fee Related
Links
Images
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
Abstract
The utility model discloses a low-temperature multi-effect evaporation seawater desalinization device. The development of a multi-effect evaporation sweater desalinization technology is restricted by the problem of scaling on the surfaces of heat exchange tubes of evaporative condensers. The product consists of evaporative condenser banks (1) which are connected with a raw seawater pump (5), wherein the evaporative condenser banks are sequentially connected in series; a strong brine pipeline of an evaporative condenser (8) of the previous effect is connected to a strong brine flash evaporation space on the shell side of an evaporative condenser (9) of the next effect through a brine pump; a steam ejector (2) is connected with any of first to Nth effects; and an evaporative condenser of the last effect is connected with a strong brine pump (8), a non-condensable gas pumping device (4), a steam condenser (3) and a fresh water pump (6). The utility model is used for the low-temperature multi-effect evaporation seawater desalinization device.
Description
Technical field:
the utility model relates to a kind of sea water distiling plant field, is specifically related to a kind of low-temperature multi-effect evaporation desalination device.
Background technology:
are along with expanding economy; The overexploitation of Increase of population and groundwater resource; The Freshwater resources scarcity has become the bottleneck of restriction China especially northern coastland social economy Sustainable development, and sea water desaltination is one of effective way that solves shortage of fresh water as new supply water source.
vaporizer-condenser heat transfer tube surface scale issues limit the development of desalting seawater through multi-effect evaporation technology.Along with the appearance and the low-temperature evaporation Progress in technique of the development of preventing fouling, new and effective evaporation equipment, developed low-temperature multi-effect evaporation desalination technology in late 1960s.
in present low-temperature multi-effect evaporation desalination device, the layout of vaporizer-condenser raw material seawater charging flow process all adopts the mode of parallel fill-out mode or adverse current feeding.The parallel fill-out mode gets into the seawater flow approximately equal of each vaporizer-condenser; The parallel fill-out general requirement is respectively imitated vaporizer-condenser to the concentration ratio of seawater also approximately equal; Seawater is easy to fouling under the high temperature, so the seawater concentration ratio can not be too big, and the parallel fill-out seawater temperature is lower than temperature of saturation; A vaporizer-condenser tube bank top area part is used to add hot sea water to temperature of saturation, and is big slightly with respect to forward feeding vaporizer-condenser area.Along with the continuous increase of sea water distiling plant water production rate, the mode of parallel fill-out needs the more raw materials seawater, has increased the cost of investment and the running cost of sea-water pump.The adverse current feeding mode can make full use of the heat transfer temperature difference of cold fluid and hot fluid, considers it is a kind of flow process of the best from the heat transfer aspect; But along with the rising of seawater temperature, the solubleness that is prone to the fouling salt in the seawater reduces, and fouling tendency increases; The concentration of seawater of adverse current feeding high-temperature zone is high; Make device be easy to corrosion and fouling, need to use expensive material or material is carried out special processing, increase installation cost; And salt solution is imitated forward and need be carried by pump by aftereffect, has increased plant investment and running cost.In design in the past, the low-temperature multi-effect vaporizer adopts flash tank to carry out the flash distillation of fresh water and concentrated seawater usually, has increased the complicacy of system, has improved the investment of devices cost.
Summary of the invention:
The purpose of
the utility model provides a kind of low-temperature multi-effect evaporation desalination device with reasonable flow arrangement.The new flow arrangement mode that this device adopts is a kind of " segmentation parallel-forward feeding " is not provided with flash tank separately, thereby can utilize the low-grade waste heat of power plant greatly to reduce water producing cost and effectively reduce fouling and corrosive generation.
Above-mentioned purpose realizes through following technical scheme:
a kind of low-temperature multi-effect evaporation desalination device; The vaporizer-condenser group that connects the raw material seawater pump; Described vaporizer-condenser group is connected successively, the strong brine pipeline of a last effect vaporizer-condenser is connected to the strong brine flash distillation space that next imitates the vaporizer-condenser shell-side through brinepump; Arbitrary effect during steam injector and 1-N are imitated is connected, the end imitate vaporizer-condenser with the strong brine pump, take out non-condensable gas device, described condenser and fresh water pump and be connected.
described low-temperature multi-effect evaporation desalination device, a described row vaporizer-condenser is the horizontal tube falling film evaporation condensing surface, and described vaporizer-condenser has fresh water pipe side flash distillation space and concentrated seawater shell-side flash distillation space.
Beneficial effect:
thus 1. the utility model can utilize the low-grade waste heat of power plant greatly to reduce water producing cost and effectively reduce fouling and corrosive generation.
the utility model has very big advantage technically and economically, and under the continuous condition of enlarged of the share in sea water desaltination market, water power coproduction low-temperature multi-effect evaporation will become the mainstream technology of following s-generation desalimtor.
the utility model can make heat energy obtain recycling, and water generation ratio is almost by imitating number increase at double; The advantage of having gathered parallel fill-out and forward feeding has been optimized the seawater desalination system flow arrangement, has reduced the complicacy of device, has obviously reduced the raw material seawater flow; Through the flash distillation space is set, the use of cancellation flash tank, the complicacy of minimizing system in vaporizer-condenser.Reduced equipment investment cost and running cost, reduced and always made the water cost.
The desalination technology of
the utility model is meant that the high evaporation temperature (TBT) of brinish is no more than 70 ℃ sea water desaltination, and low temperature through simple pretreated seawater scale formation takes place no longer almost in vaporizer-condenser down.
The vaporizer-condenser of
the utility model is provided with fresh water and strong brine flash distillation space, saves flash tank, reduces the complicacy of system when reclaiming heat.Adopt segmentation parallel-mode of forward feeding, reduced the flow and the power consumption of sea-water pump, optimized the seawater feeding system, reduced equipment investment cost and running cost.
Description of drawings:
accompanying drawing 1 is the structural representation of the utility model.
Embodiment:
Embodiment 1:
a kind of low-temperature multi-effect evaporation desalination device; Its composition comprises: the vaporizer-condenser group 1 that connects raw material seawater pump 5; Described vaporizer-condenser group is connected successively, the strong brine pipeline of a last effect vaporizer-condenser 8 is connected to the strong brine flash distillation space that next imitates vaporizer-condenser 9 shell-sides through brinepump; Arbitrary effect during steam injector 2 and 1-N are imitated is connected, and the end imitates vaporizer-condenser and strong brine pump 7, take out non-condensable gas device 4 described condensers 3 and fresh water pump 6 is connected.
Embodiment 2:
embodiment 1 described low-temperature multi-effect evaporation desalination device, a described row vaporizer-condenser is the horizontal tube falling film evaporation condensing surface, and described vaporizer-condenser has fresh water pipe side flash distillation space and concentrated seawater shell-side flash distillation space.
Embodiment 3:
a kind of low-temperature multi-effect evaporation desalination method; Described method adopts the mode of " segmentation parallel-forward feeding "; One row vaporizer-condenser is divided into several groups, and every group contains a plurality of vaporizer-condensers, seawater at first evenly distribute in first group of vaporizer-condenser; Seawater after concentrating converges the back evenly distribute and gets in second group of vaporizer-condenser, converges at last by that analogy in the last platform vaporizer-condenser; Behind the evaporation of seawater, concentrated seawater directly gets into next shell-side flash distillation space flash distillation; Secondary steam directly gets into next pipe side flash distillation space flash distillation after being condensed into fresh water.
Embodiment 4:
embodiment 3 described low-temperature multi-effect evaporation desalination methods, secondary steam and power steam that vaporizer-condenser of steam injector injection produces are mixed into first vaporizer-condenser.
Embodiment 5:
the described low-temperature multi-effect evaporation desalination of above embodiment device, this low-temperature multi-effect evaporation desalination device comprise 1-N vaporizer-condenser (each is called an effect), 1 steam injector, 1 condenser, take out non-condensable gas device, strong brine pump, fresh water pump, raw material seawater pump etc.1-N vaporizer-condenser is segmental influent; Whole vaporizer-condenser is divided into several groups; Every group contains a plurality of vaporizer-condensers; At first evenly distribute is in first group of vaporizer-condenser for seawater, and the seawater after concentrating converges the back evenly distribute and gets in second group of vaporizer-condenser, converges to the end by that analogy at last and imitates in the vaporizer-condenser; Arbitrary effect during steam injector and 1-N are imitated is connected, and the end is imitated vaporizer-condenser and is connected with condenser, takes out the non-condensable gas device and is connected with condenser, and non-condensable gas is pooled in the condenser and extracts out.Described each vaporizer-condenser is the horizontal tube falling film evaporation condensing surface, and has fresh water and concentrated seawater flash distillation space.
Embodiment 6:
The implementation method of
the described low-temperature multi-effect evaporation desalination of above embodiment device; Described implementation method may further comprise the steps: the living steam that Power Plant is extracted out is as the working steam of steam injector; Aspirate the part secondary steam of a certain effect vaporizer-condenser, the outlet steam of steam injector is as the heating steam of the first effect vaporizer-condenser.First imitates vaporizer-condenser heating steam gets back to the Water of Power Plant system behind the condensation heat in pipe.Fresh water in the second effect vaporizer-condenser sweating room flows into the flash distillation space of triple effect evaporation condensing surface; Because of decompression; Part fresh water flash-off of steam, the secondary steam that produces with the second effect vaporizer-condenser compiles the heating steam that becomes the triple effect evaporation condensing surface, and the rest may be inferred for the fresh water flow process.Connect the secondary steam of the vaporizer-condenser generation of steam injector, part is imitated vaporizer-condenser by steam injector injection to the first, and remainder is imitated the heating steam of vaporizer-condenser as next.N is imitated the secondary vapour entering condenser that vaporizer-condenser produces, and the back of condensing is compiled with the condensed water of former effect vaporizer-condensers, is extracted out by fresh water pump, after further cooling off, becomes product water.
Embodiment 7:
the described low-temperature multi-effect evaporation desalination of above embodiment device; The seawater spraying that gets into vaporizer-condenser forms falling film evaporation outside heat-exchanging tube bundle; Part moisture content is evaporated to secondary steam, and all the other seawater are condensed to and are the higher strong brine of salinity.Strong brine confluxes by imitating; Promptly the strong brine of the first effect vaporizer-condenser gets into the strong brine flash distillation space of the second effect vaporizer-condenser shell-side; Compile with the strong brine of the second effect vaporizer-condenser; Cause first is imitated vaporizer-condenser strong brine temperature and is higher than the salt solution temperature of saturation in the second effect vaporizer-condenser, and the moisture content in the strong brine of the entering second effect vaporizer-condenser will produce the part flash distillation, increase the secondary steam output of the second effect vaporizer-condenser.The salt solution that first effect, second is imitated vaporizer-condenser compiles the back imitates the charging of vaporizer-condenser as next.The rest may be inferred, and the strong brine of imitating vaporizer-condenser until N is outside brinepump is discharged vaporizer-condenser.
Claims (2)
1. low-temperature multi-effect evaporation desalination device; Its composition comprises: the vaporizer-condenser group that connects the raw material seawater pump; It is characterized in that: described vaporizer-condenser group is connected successively, the strong brine pipeline of a last effect vaporizer-condenser is connected to the strong brine flash distillation space that next imitates the vaporizer-condenser shell-side through brinepump; Arbitrary effect during steam injector and 1-N are imitated is connected, and the end is imitated vaporizer-condenser and strong brine pump, taken out non-condensable gas device, described condenser and light
Water pumpBe connected.
2. low-temperature multi-effect evaporation desalination device according to claim 1 is characterized in that: a described row vaporizer-condenser is the horizontal tube falling film evaporation condensing surface, and described vaporizer-condenser has fresh water pipe side flash distillation space and concentrated seawater shell-side flash distillation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204080666U CN202284171U (en) | 2011-10-24 | 2011-10-24 | Low-temperature multi-effect evaporation seawater desalinization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204080666U CN202284171U (en) | 2011-10-24 | 2011-10-24 | Low-temperature multi-effect evaporation seawater desalinization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284171U true CN202284171U (en) | 2012-06-27 |
Family
ID=46295699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204080666U Expired - Fee Related CN202284171U (en) | 2011-10-24 | 2011-10-24 | Low-temperature multi-effect evaporation seawater desalinization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284171U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329037A (en) * | 2011-10-24 | 2012-01-25 | 哈尔滨锅炉厂有限责任公司 | Low-temperature multi-effect evaporation sea water desalting device and sea water desalting method |
| CN103739025A (en) * | 2013-12-19 | 2014-04-23 | 广州市金龙峰环保设备工程有限公司 | High-efficiency and energy-saving multi-effect evaporator system |
| CN114247168A (en) * | 2021-12-23 | 2022-03-29 | 山西普丽环境工程股份有限公司 | Steam-hot water coupling low-temperature flash evaporation device and flash evaporation method |
-
2011
- 2011-10-24 CN CN2011204080666U patent/CN202284171U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329037A (en) * | 2011-10-24 | 2012-01-25 | 哈尔滨锅炉厂有限责任公司 | Low-temperature multi-effect evaporation sea water desalting device and sea water desalting method |
| CN102329037B (en) * | 2011-10-24 | 2015-07-29 | 哈尔滨锅炉厂有限责任公司 | Low-temperature multi-effect evaporation seawater desalinization device and method for desalting seawater |
| CN103739025A (en) * | 2013-12-19 | 2014-04-23 | 广州市金龙峰环保设备工程有限公司 | High-efficiency and energy-saving multi-effect evaporator system |
| CN103739025B (en) * | 2013-12-19 | 2015-08-19 | 广州市金龙峰环保设备工程有限公司 | A kind of energy-efficient Multi-effect evaporator system |
| CN114247168A (en) * | 2021-12-23 | 2022-03-29 | 山西普丽环境工程股份有限公司 | Steam-hot water coupling low-temperature flash evaporation device and flash evaporation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102329037B (en) | Low-temperature multi-effect evaporation seawater desalinization device and method for desalting seawater | |
| CN104402079B (en) | Industrial exhaust heat type low temperature multi-effect seawater desalting system and method for desalting seawater thereof | |
| CN101955238A (en) | Seawater desalting method and device | |
| CN102336448B (en) | Saline treatment system and method | |
| CN105399169B (en) | Multi-effect plate-type distillation seawater desalination system and method utilizing low-grade heat energy | |
| CN106115825A (en) | A kind of low temperature multiple-effect distillation seawater desalination system | |
| CN105417606A (en) | Multi-effect distillation and multi-stage flash evaporation solar sea water desalination method | |
| CN103112985A (en) | Multi-stage flash distillation seawater desalination system of low-temperature multi-effect steamer vapor compression distillation | |
| CN202208652U (en) | Salt water treating system | |
| CN101648733B (en) | Multi-effect distillation seawater desalinating device of multi-stage type condenser | |
| CN202284171U (en) | Low-temperature multi-effect evaporation seawater desalinization device | |
| CN201834781U (en) | Single-stage vacuum distillation seawater desalination device | |
| CN103342397B (en) | Energy-saving low-temperature multi-effect distillation sea water desalination method | |
| CN201660457U (en) | Novel multiple-effect distilled sea water desalination device | |
| CN106082378B (en) | A kind of low temperature (1+n) effect distillation seawater desalination technique | |
| CN202116342U (en) | Industrial exhaust heat low-temperature multiple-effect seawater desalinization system | |
| CN204625229U (en) | A kind of open type heat pump low-temperature multi-effect seawater desalination device of preheated feed seawater | |
| CN101759238B (en) | Ribbed plate type seawater desalinating device | |
| CN203558881U (en) | Forward overlaid horizontal falling film multi-effect evaporation sea water desalination device | |
| CN215048809U (en) | System for recovering waste heat in seawater desalination process and heating domestic water | |
| CN206232419U (en) | A kind of efficient integrated low temperature multiple-effect distillation sea water desalting device | |
| CN205999044U (en) | A kind of low temperature multiple-effect distillation seawater desalination system | |
| CN201347369Y (en) | Seawater desalination final effect condenser | |
| CN2934211Y (en) | Water desalination low temperature multi-effect device | |
| CN103086451A (en) | Multi-effect evaporative sea water desalinating device with hybrid process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20161024 |