CN101525196A - Multi-effect distilled seawater desalting plant with pre-heater - Google Patents
Multi-effect distilled seawater desalting plant with pre-heater Download PDFInfo
- Publication number
- CN101525196A CN101525196A CN200910030579A CN200910030579A CN101525196A CN 101525196 A CN101525196 A CN 101525196A CN 200910030579 A CN200910030579 A CN 200910030579A CN 200910030579 A CN200910030579 A CN 200910030579A CN 101525196 A CN101525196 A CN 101525196A
- Authority
- CN
- China
- Prior art keywords
- seawater
- effect
- pipe
- heater
- evaporator
- 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.)
- Pending
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
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a multi-effect distilled seawater desalting plant with a pre-heater for making fresh water by adopting multi-effect distilling method and by using seawater as raw material as well as steam and hot water as hot sources. The multi-effect distilled seawater desalting plant comprises a first-effect evaporator (2) and a second-effect evaporator (9) till n-effect evaporator, a fluid baffle device (6), an evaporator seawater spraying device (19), a condenser (14) and a seawater feed pipe, wherein the seawater feed pipe comprises a seawater main pipe and seawater feed branch pipes (18) entering into all effect evaporators. The multi-effect distilled seawater desalting plant is characterized in that the seawater feed pipe in the flowing direction of seawater is provided with a first seawater pre-heater (20) and a second seawater pre-heater (21) till n seawater pre-heater; all effect feed seawater travels in the pipeline of seawater pre-heater; the steam in the pipeline of all effect evaporators enters into a seawater pre-heater shell side through a steam feed seawater pre-heater pipe (22); and the steam, after being condensed, returns to the evaporators through a condensate water seawater output pre-heater pipe (23). The device can reduce the total heat transmission area of the seawater desalting plant and reduces the cost.
Description
(1) technical field
The present invention relates to a kind of effect distillation seawater desalinating device of multi with preheater, being mainly used in steam, hot water etc. is thermal source, and adopting the multi-effect distilling method is the device that raw material is produced fresh water with the seawater.Belong to the heat-exchange equipment technical field.
(2) background technology
Multi-effect distilling is a series of horizontal pipe falling film evaporation device or vertical tube falling-film evaporator to be together in series be divided into 2～n effect group, repeatedly evaporate and condensation with the input of a certain amount of driving heat source, thereby obtain being multiple times than the desalination technology of the distilled water of heating thermal source.Be quadruple effect as shown in Figure 1 shown in the figure, imitating number can be that 2～n is imitated, treated seawater is by sea intake 15, entering condenser 14 carries out being divided into two tunnel logistics after the preheating, one the tunnel enters the sea as water coolant by cooled with seawater water relief outlet 16, another road is as the charging in the still-process, be introduced in several effects of vaporizer after the heating of charging seawater, feed liquid enters vaporizer seawater spraying device 19 through vaporizer sea intake arm 18 and is evenly distributed on the overhead coil of vaporizer, flow downward with the film pattern along overhead coil then, the latent heat of condensed steam in the portion water absorption tube and evaporating, secondary steam is condensed into product water in next is imitated.Driving heat source is imported in first the vaporizer in imitating, the outer seawater of heating tube produces the secondary steam suitable with heat, because will being lower than first, second working pressure of imitating imitates, secondary steam enters next and imitates heat transfer tube behind liquid-blocking device 6, evaporation, process are imitated and are repeated at each, each is imitated and all to produce distilled water, the steam of last effect in condenser 14 by the seawater condensation.Product water pot between each is imitated links to each other by the fresh water connecting leg 8 that condenses, concentrated seawater after the distillation links to each other by concentrated seawater connecting leg 7, because each is imitated the pressure difference and makes condense fresh water and concentrated seawater flash distillation in next is imitated, and heat taken back vaporizer, condensing like this, fresh water and concentrated seawater are stepped to flow, and flash cooling step by step, reclaim heat and improve system's total heat.The fresh water that condenses after flash cooling gathers the back and enters the fresh water storage tank by fresh water rising pipe 13.Concentrated seawater gathers after overrich seawer outlet pipe 12 is discharged by the strong brine pump.Non-condensable gases is in the condenser enrichment, extracted by vacuum extractor by non-condensable gases relief outlet 17.
For effect distillation seawater desalinating device of multi, because seawater enters in the vaporizer after heating through condenser, each temperature of imitating the charging seawater is lower than condensing temperature, more be lower than the temperature of saturation of respectively imitating the evaporating pressure correspondence, the charging seawater is in supercooled state, so the main condensate depression of eliminating seawater of vaporizer upper tube row, there is not steam to produce, become interior steam of pipe and the outer supercooled water of pipe and carry out heat exchange, cause the coefficient of heat transfer lower, the heat transfer area that expends is bigger.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and can reduce the sea water desalinating plant total heat conduction area, the effect distillation seawater desalinating device of multi of the band preheater that reduces cost.
The object of the present invention is achieved like this:
Scheme one:
A kind of effect distillation seawater desalinating device of multi with preheater, comprise the 1st effective evaporator 2nd effect evaporator until n single-effect evaporator and liquid-blocking device, vaporizer seawater spraying device, condenser and seawater feed-pipe, described seawater feed-pipe comprises seawater charging house steward and enters the seawater feed-inputing branched pipe of each single-effect evaporator, the seawater feed-pipe of the mobile direction of coastal water is provided with the first seawater preheating device, the second seawater preheating device until n seawater preheating device, each is imitated the charging seawater and walks seawater preheating organ pipe journey, the steam of each single-effect evaporator tube side advances the seawater preheating organ pipe by steam and enters seawater preheating device shell side, gets back in the vaporizer by coagulating the water water preheat organ pipe that goes to sea after the vapor condenses.Because the outer condensation heat transfer coefficient of the pipe of seawater preheating device is eliminated the coefficient of heat transfer of charging seawater condensate depression part much larger than former vaporizer top, can reduce the sea water desalinating plant total heat conduction area by increasing the seawater preheating device, reduce cost.
Scheme two:
Series connection is provided with the first seawater preheating device until n seawater preheating device on the seawater house steward of the mobile direction of coastal water, seawater is walked seawater preheating organ pipe journey, seawater one-level one-level is heated, the steam of each single-effect evaporator tube side is advanced the seawater preheating organ pipe by steam enter seawater preheating device shell side, heating tube side charging seawater is got back in the vaporizer by coagulating the water water preheat organ pipe that goes to sea after the vapor condenses.Telling one the tunnel since the outlet of each seawater preheating device of the first seawater preheating device enters the sea intake arm and enters each single-effect evaporator shell side spray by vaporizer seawater spraying device.Residual seawater enters next seawater preheating organ pipe journey heating.Heated by the one-level one-level from low to high by seawater, by seawater one-level one-level heating from low to high, the part heat that low temperature can be imitated is brought in the high temperature effect by the charging seawater, and the thermal source consumption of the unit's of making water yield reduces, improve water generation ratio, reduced running cost.
The invention has the beneficial effects as follows: by setting up the seawater preheating device, with the charging seawater preheating, temperature improves, and enters each single-effect evaporator shell side spray again, can reduce the sea water desalinating plant total heat conduction area like this, reduces cost.
(4) description of drawings
Fig. 1 is the overall structure synoptic diagram of effect distillation seawater desalinating device of multi in the past.
Fig. 2 is the present invention program one a structural representation.
Fig. 3 is the present invention program two a structural representation.
Among the figure: drive steam inlet 1,1st effective evaporator 2, working steam coagulates water out 3, vaporizer heat-exchanging tube bundle 4, vaporizer fluid 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 outlet pipe 12, fresh water rising pipe 13, condenser 14, sea intake 15, cooled with seawater water discharges 16, non-condensable gases relief outlet 17, vaporizer seawater feed-inputing branched pipe 18, vaporizer seawater spraying device 19, the first seawater preheating device 20, the second seawater preheating device 21, steam advances seawater preheating organ pipe 22, coagulate the water water preheat organ pipe 23 that goes to sea, the 3rd seawater preheating device 24, four seas water preheater 25.
(5) embodiment
Scheme one:
Be quadruple effect as shown in Figure 2 among the figure, this effect distillation seawater desalinating device of multi by 1st effective evaporator 2 2nd effect evaporators 9 until n single-effect evaporator and liquid-blocking device 6, vaporizer seawater spraying device 19, condenser 14, the first seawater preheating device, 20 second seawater preheating devices 21 until n seawater preheating device and external pipeline system form.On each single-effect evaporator of the mobile direction of coastal water sea intake arm 18 in parallel, set up the first seawater preheating device 20 until n seawater preheating device, each is imitated the charging seawater and walks seawater preheating organ pipe journey, the steam of each single-effect evaporator tube side is advanced seawater preheating organ pipe 22 by steam enter seawater preheating device shell side, heating tube side charging seawater is got back in the vaporizer by coagulating the water water preheat organ pipe 23 that goes to sea after the vapor condenses.Charging seawater behind pre-heating temperature elevation enters each single-effect evaporator shell side spray by vaporizer seawater spraying device 19.Driving heat source enters 1st effective evaporator 2 tube side heating tube off-lying sea water generates steam, and tube side heating steam self condenses into fresh water.The steam that produces enters next and imitates as heating source, by that analogy, product water pot between each is imitated links to each other by the fresh water connecting leg 8 that condenses, concentrated seawater after the distillation links to each other by concentrated seawater connecting leg 7, because each is imitated the pressure difference and makes condense fresh water and concentrated seawater flash distillation in next is imitated, and heat taken back vaporizer, condensing like this, fresh water and concentrated seawater are stepped to flow, and flash cooling step by step, in the end one-level is together incorporated the fresh water that produces into the water outlet pipe by connecting pipeline and is squeezed into the fresh water storage tank by fresh water pump; Seawater after concentrating is also together incorporated concentrated seawater outlet pipe 11 into by connecting pipeline, effluxes by the concentrated seawater pump.
Scheme two:
Be quadruple effect as shown in Figure 3 among the figure, this effect distillation seawater desalinating device of multi by 1st effective evaporator 2 2nd effect evaporators 9 until n single-effect evaporator and liquid-blocking device 6, vaporizer seawater spraying device 19, condenser 14, the first seawater preheating device, 20 second seawater preheating devices 21 until n seawater preheating device and external pipeline system form.Series connection is provided with the first seawater preheating device 20 until n seawater preheating device on the seawater house steward of the mobile direction of coastal water, seawater is walked seawater preheating organ pipe journey, seawater one-level one-level is heated, the steam of each single-effect evaporator tube side is advanced seawater preheating organ pipe 22 by steam enter seawater preheating device shell side, heating tube side charging seawater is got back in the vaporizer by coagulating the water water preheat organ pipe 23 that goes to sea after the vapor condenses.Telling one the tunnel since each the seawater preheating devices outlet of the first seawater preheating device 20 enters sea intake arm 18 and enters each single-effect evaporator shell side spray by vaporizer seawater spraying device 19.Residual seawater enters next seawater preheating organ pipe journey heating, and seawater is heated by the one-level one-level from low to high.
Such scheme is applicable to horizontally disposed horizontal pipe falling film evaporation device or vertical tube falling-film evaporator, and the heating thermal source can be multiple thermals source such as steam, hot water, sun power, can be with multiple patterns such as thermo compression, absorption heat pump or L.P.T..
Claims (4)
1, a kind of effect distillation seawater desalinating device of multi with preheater, comprise 1st effective evaporator (2) 2nd effect evaporator (9) until n single-effect evaporator and liquid-blocking device (6), vaporizer seawater spraying device (19), condenser (14) and seawater feed-pipe, described seawater feed-pipe comprises seawater charging house steward and enters the seawater feed-inputing branched pipe (18) of each single-effect evaporator, it is characterized in that: the seawater feed-pipe of the mobile direction of coastal water is provided with the first seawater preheating device (20) second seawater preheating devices (21) until n seawater preheating device, each is imitated the charging seawater and walks seawater preheating organ pipe journey, the steam of each single-effect evaporator tube side advances seawater preheating organ pipe (22) by steam and enters seawater preheating device shell side, gets back in the vaporizer by coagulating the water water preheat organ pipe (23) that goes to sea after the vapor condenses.
2, a kind of effect distillation seawater desalinating device of multi with preheater according to claim 1 is characterized in that: described each seawater preheating device is arranged in parallel on each single-effect evaporator seawater feed-inputing branched pipe (18) of the mobile direction of coastal water.
3, a kind of effect distillation seawater desalinating device of multi according to claim 1 with preheater, it is characterized in that: described each seawater preheating device series connection is arranged on the seawater charging house steward of the mobile direction of coastal water, tell one road seawater since each seawater preheating device outlet of the first seawater preheating device (20) and enter sea intake arm (18), residual seawater enters next seawater preheating organ pipe journey.
4, according to claim 1,2 or 3 described a kind of effect distillation seawater desalinating device of multi with preheater, it is characterized in that: described each single-effect evaporator vaporizer is horizontal pipe falling film evaporation device or vertical tube falling-film evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030579A CN101525196A (en) | 2009-04-16 | 2009-04-16 | Multi-effect distilled seawater desalting plant with pre-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030579A CN101525196A (en) | 2009-04-16 | 2009-04-16 | Multi-effect distilled seawater desalting plant with pre-heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101525196A true CN101525196A (en) | 2009-09-09 |
Family
ID=41093295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910030579A Pending CN101525196A (en) | 2009-04-16 | 2009-04-16 | Multi-effect distilled seawater desalting plant with pre-heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101525196A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709953A (en) * | 2014-12-15 | 2015-06-17 | 北京理工大学 | Multistage back-heating humidification dehumidifying seawater desalination device with thermal energy gradient utilization |
| CN104961180A (en) * | 2015-06-18 | 2015-10-07 | 天津城建大学 | Multi-effect solar seawater concentrating and desalting device |
| CN106006803A (en) * | 2016-06-21 | 2016-10-12 | 首钢京唐钢铁联合有限责任公司 | Seawater desalination system and method |
| CN106587227A (en) * | 2016-12-26 | 2017-04-26 | 南京航空航天大学 | Integral double-effect plate type seawater desalination device and working method thereof |
| CN111392791A (en) * | 2020-04-02 | 2020-07-10 | 郑州电力高等专科学校 | Multi-effect distillation seawater desalination system combined with heat pump |
| CN112573604A (en) * | 2020-12-09 | 2021-03-30 | 上海电站辅机厂有限公司 | Hot water heating low-temperature multi-effect distillation seawater desalination device |
-
2009
- 2009-04-16 CN CN200910030579A patent/CN101525196A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709953A (en) * | 2014-12-15 | 2015-06-17 | 北京理工大学 | Multistage back-heating humidification dehumidifying seawater desalination device with thermal energy gradient utilization |
| CN104709953B (en) * | 2014-12-15 | 2023-03-21 | 北京理工大学 | Multistage backheating, humidifying and dehumidifying seawater desalting device with gradient utilization of heat energy |
| CN104961180A (en) * | 2015-06-18 | 2015-10-07 | 天津城建大学 | Multi-effect solar seawater concentrating and desalting device |
| CN106006803A (en) * | 2016-06-21 | 2016-10-12 | 首钢京唐钢铁联合有限责任公司 | Seawater desalination system and method |
| CN106587227A (en) * | 2016-12-26 | 2017-04-26 | 南京航空航天大学 | Integral double-effect plate type seawater desalination device and working method thereof |
| CN106587227B (en) * | 2016-12-26 | 2019-04-19 | 南京航空航天大学 | Integrated double-effect plate type seawater desalination device and its working method |
| CN111392791A (en) * | 2020-04-02 | 2020-07-10 | 郑州电力高等专科学校 | Multi-effect distillation seawater desalination system combined with heat pump |
| CN112573604A (en) * | 2020-12-09 | 2021-03-30 | 上海电站辅机厂有限公司 | Hot water heating low-temperature multi-effect distillation seawater desalination device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101948148B (en) | Energy-saving low-temperature multiple-effect seawater desalting device | |
| CN102992427B (en) | Wastewater zero-discharge treatment system | |
| CN101525196A (en) | Multi-effect distilled seawater desalting plant with pre-heater | |
| CN201587871U (en) | Multi-stage vacuum distillation sea water desalinating device | |
| CN107445233A (en) | A kind of mechanical compression type multiple-effect distillation seawater desalination system of Coupling Water-source Heat Pump | |
| CN101648733B (en) | Multi-effect distillation seawater desalinating device of multi-stage type condenser | |
| CN101880068A (en) | Water treatment device and method | |
| CN101985368A (en) | Condenser type seawater desalting device with steam turbine generator unit | |
| CN201660457U (en) | Novel multiple-effect distilled sea water desalination device | |
| CN201834781U (en) | Single-stage vacuum distillation seawater desalination device | |
| CN103342397B (en) | Energy-saving low-temperature multi-effect distillation sea water desalination method | |
| CN100391570C (en) | A multi-effect distilling method for desalt and condensation and device | |
| CN201882942U (en) | Power-generation turboset condenser type sea water desalinating unit | |
| CN2835215Y (en) | Direct heating solar seawater desalination device | |
| CN201534784U (en) | Horizontal falling film evaporation multi-effect distillation seawater desalination evaporator | |
| CN202116342U (en) | Industrial exhaust heat low-temperature multiple-effect seawater desalinization system | |
| CN201395520Y (en) | Exhaust system of multi-effect distilled seawater desalting plant with pre-heater | |
| CN203558881U (en) | Forward overlaid horizontal falling film multi-effect evaporation sea water desalination device | |
| CN101503225A (en) | Low temperature multiple-effect seawater last effect evaporator and working method thereof | |
| CN201347369Y (en) | Seawater desalination final effect condenser | |
| CN105347415A (en) | External-corrugation-heat-tube falling-film low-temperature multi-effect sea water desalination evaporator | |
| CN201395519Y (en) | Multi-effect distilled seawater desalting plant with pre-heater | |
| CN105692744A (en) | Medical multi-effect water distiller | |
| CN101531434B (en) | Multi-effect distillation exhaust system with preheaters for seawater desalinating unit | |
| CN2934211Y (en) | Water desalination low temperature multi-effect device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100910 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100910 Address after: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Applicant after: Shuangliang Energy Saving System Co., Ltd. Address before: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Applicant before: Shuangliang Air Conditioning Equipment Co., Ltd., Jiangsu |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090909 |