CN207619180U - Press vapour method seawater desalination system - Google Patents
Press vapour method seawater desalination system Download PDFInfo
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- CN207619180U CN207619180U CN201721558138.9U CN201721558138U CN207619180U CN 207619180 U CN207619180 U CN 207619180U CN 201721558138 U CN201721558138 U CN 201721558138U CN 207619180 U CN207619180 U CN 207619180U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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Abstract
The utility model belongs to field of sea water desalting technology, disclose pressure vapour method seawater desalination system, including alembic, the evaporative condenser being arranged in alembic, the steam-water separator being connect with evaporative condenser, the heat exchanger being connect with steam-water separator and distill tank connected vapour compression machine and centrifugal filter, Pistonless compressor is connect with evaporative condenser, centrifugal filter is connect with water pump, and water pump is connect with alembic.The technical program realizes sea water desalination and produces the zero emissions, zero pollution and depth energy saving of sea salt；Fresh water and sea salt synchronous production avoid the discharge of regular seawater desalination strong brine；Whole sea salt are disposably extracted simultaneously in fresh water production, improve the economic benefit of production；The heat generated in production process is comprehensively recyled using multiple technologies, fresh water exhaust temperature can even be less than seawater water intaking temperature, reduce energy consumption, reduce cost, avoid energy waste.
Description
Technical field
The utility model patent is related to field of sea water desalting technology, more particularly to pressure vapour method seawater desalination system.
Background technology
The way of distillation is the method for being allowed to boiling vaporization by heating seawater, then steam is condensed into fresh water.Mainly there is low temperature
Multiple-effect method sea water desalination, multistage flash vaporization sea water desalination etc..It is the steam formed after seawater evaporates in alembic to press vapour method, warp
De-bubble filtering (such as mist eliminator) device is crossed, is pressurizeed using compressor, enters condensation pipe after improving pressure and temperature, with tube wall
It is condensed into liquid water after outer seawater to make heat exchange, the latent heat of vaporization released is used to heat the seawater outside condenser pipe, is allowed to boiling and steams
Hair.In-tube condensation water exports as product fresh water after seawater preheating heat exchanger recovery section sensible heat, it is light can only to extract part
Water cannot extract salt；There is no desalination measure in system, to prevent salt from crystallizing and fouling, the strong brine in evaporator reaches certain
After concentration, i.e., it need to be discharged after heat exchanger is with cold seawater to make heat exchange.Seawater water intaking is than general less than 40%.When 40% or so fresh water takes
After going out, remaining strong brine, which must return, to be discharged to big marine or stores to get up to wait for deep processing and utilization, this part seawater removes high salinity
Outside high-temperature, the antisludging agent also added containing sea water preprocessing process, fungicide, pH adjusting agent, marine organisms algae
The strong brine of equal agent for killing etc., the row of returning sea can cause periphery marine organisms greatly injury and marine pollution；Seawater returns row
Reach 60% or so, caused by extra power consumption and the losses such as heat it is very big；Multipurpose use of sea water effect is poor, industrial production effect
Benefit is bad, and the comprehensive utilization of a variety of salt in seawater is not implemented.
Invention content
The utility model in view of the above technical problems, proposes a kind of fresh water and sea salt synchronous production, environmentally protective zero-emission
Seawater desalination system and method.
Press vapour method seawater desalination system, including alembic, the evaporative condenser and evaporative condenser that are arranged in alembic
The steam-water separator of connection, the heat exchanger being connect with steam-water separator and the tank connected vapour compression machine of distillation and centrifugal filtration
Device, Pistonless compressor are connect with evaporative condenser, and centrifugal filter is connect with water pump, and water pump is connect with alembic.
Preferably, heat exchanger includes First Heat Exchanger and the second heat exchanger.
Preferably, steam-water separator vapor outlet is connect with First Heat Exchanger, steam-water separator water out and the second heat exchanger
Connection.
Preferably, centrifugal filter is connect by brine bleeder valve with alembic.
Preferably, further include heat pump, the second heat exchanger is connected with heat pump.
Preferably, further include steam heater, steam heater is connect with vapour compression machine.The water extracted out out of alembic
Steam is condensed into fresh water with tank inland sea hydrothermal exchange by the evaporative condenser in alembic, and heated seawater in tank and be allowed to
Evaporation, to gradually concentrate and sea salt is precipitated.
First Heat Exchanger vapor condensation heat-exchange is first passed through after seawater cleaning processing, is changed using the second of the heat exchange of hot fresh water
The hot further temperature raising of device, finally by external source:Steam, hot water or electrical heating etc. carry out concurrent heating and make up to technological requirement
It injects alembic after temperature to be evaporated, the steam for evaporating generation first passes through vapour compression machine extraction/boosting, then carries out heating tune
Temperature is then return in alembic and carries out heat exchange condensation, heating steaming when the seawater in alembic passes through evaporative condenser by water vapour
Hair.Steam enters steam-water separator by vapour, the aqueous mixtures after evaporative condenser condensing heat-exchange, and the steam after separation enters the
One heat exchanger further exchanges heat condensation, and condensing does not discharge in air then.Condensed water in steam-water separator then flows into the second heat exchange
The same seawater to make heat exchange of device can further recycle heat by heat pump later, be stored after fresh water temperature is down to room temperature, can not also be through
Heat pump cooling is directly stored.Seawater in alembic reaches sea salt such as precipitated sodium chlorides after a certain concentration, waits for total salt in seawater
Divide after reaching a certain concentration, occurs either periodically or continuously salt/water mixed liquid is discharged into centrifugal filter and isolates crystal salt, and
Strong brine is injected back into re-distillation in alembic.When the concentration of the salt such as calcium, magnesium in strong brine reaches sea salt standard max, in tank
Strong brine has become bittern water, is no longer appropriate for continuing to extract sodium salt sea salt, then concentrates whole tank to be discharged, hardship is sold or flashed in tinning
Halogen calcium and magnesium potassium sodium salt-mixture is externally sold.
The technical fields such as the utility model is related to sea water desalination, sea salt to produce, waste heat recovery and marine environmental protection.Seawater
Comprehensive utilization realizes sea water desalination and produces the zero emissions, zero pollution and depth energy saving of sea salt.Fresh water and sea salt synchronous production,
Avoid the discharge of regular seawater desalination strong brine.Whole sea salt are disposably extracted simultaneously in fresh water production, improve production
Economic benefit, than general 40%, this technology may be up to 90% or more with the salt concentration difference of seawater for existing water intaking.Using a variety of
Technology comprehensively recyles the heat generated in production process, and fresh water exhaust temperature can even be less than seawater water intaking temperature,
Energy consumption is reduced, cost is reduced, avoids energy waste.
Description of the drawings
Fig. 1：The pressure vapour method seawater desalination system and attachment structure schematic diagram of the utility model；
Fig. 2：The pressure vapour method sea water desalination operating procedure schematic diagram of the utility model.
Wherein：1. alembic：As the groundwork container of pressure steam distillation system, for sea water by distillation and salt is generated；
2. evaporative condenser：The main equipment of Distallation systm, for carrying out heating evaporation and steam condensation to seawater；
3. vapour compression machine：For extracting the saturated vapor of low temperature out alembic, and evaporation is sent to after compressing boosting, heating
Condenser heat exchange condensation；
4. steam heater：Supplementary heating heating is carried out to steam using external heat source steam, electricity, solar energy etc.；
5. steam-water separator：For separate vapour and condensed water, and it is discharged respectively；
6. First Heat Exchanger：For recycling the steam condensate (SC) being discharged from steam-water separator and being carried out to seawater using waste heat
Primary heating；
7. the second heat exchanger：For extracting condensed water heat, reducing condensate temperature, and simultaneously using the heat extracted
Again heating seawater so as to give afterburner provide hot sea water；
8. afterburner：Seawater is heated again using external heat source steam, so that seawater reaches into alembic
Temperature condition；
9. heat pump：For reducing the leaving water temperature of condensed water, while recycling the heat in condensed water and seawater is heated；
10. fresh-water tank：For storing fresh water；
11. brine bleeder valve：Brine, sea salt for being discharged in alembic；
12. centrifugal filter：For detaching brine and sea salt；
13. water pump：It is discharged with bittern water for sending the brine after separation in alembic back to；
14. concentraing pond：For remaining bittern water after storage or dryness in the sun separation.
Specific implementation mode
1-2 with reference to the accompanying drawings is described further the technical program.
Embodiment 1
Pressure vapour method seawater desalination system includes alembic 1, the evaporative condenser 2 and evaporative condenser that are arranged in alembic 1
Steam-water separator 5 that device 2 connects, the heat exchanger being connect with steam-water separator 5, the vapour compression machine 3 that is connect with alembic 1 and from
Heart filter 12, Pistonless compressor 3 are connect with evaporative condenser 2, and centrifugal filter 12 is connect with water pump 13, water pump 13 and distillation
Tank 1 connects.
Embodiment 2
Compared with Example 1, there are two heat exchangers, i.e. First Heat Exchanger 6 and the second heat exchanger 7.
Embodiment 3
Compared with Example 2,5 vapor outlet of steam-water separator is connect with First Heat Exchanger 6,5 water out of steam-water separator with
Second heat exchanger 7 connects, and centrifugal filter 12 is connect by brine bleeder valve 11 with alembic 1, and system further includes heat pump 9 and steams
Vapour heater 4, the second heat exchanger 7 and heat pump 9 connect, and steam heater 4 is connect with vapour compression machine 3.
Filtered seawater is first passed through First Heat Exchanger 6 and is further condensed using steam progress primary heating and steam, then
It is exchanged heat using condensed water by the second heat exchanger 7 and carries out reheating, further added using condensed water heat by heat pump 9
Heat heats adjustment temperature finally by progress such as 8 external steam of afterburner or electricity, so that seawater reaches into alembic 1 again
Interior temperature condition.
Hot sea water enters in alembic 1, and by constantly by 2 heating evaporation of evaporative condenser at steam, steam is by filtering
After bubble trap filter, pressurizes and heat up after being extracted out using vapour compression machine 3, be increased to pressure appropriate and pass through steam heater
4 are sent into the evaporative condenser 2 in alembic 1 after supplementary heating again, and are condensed into after the seawater to make heat exchange outside condenser tube wall
Liquid water.
For the steam and condensed water mixture generated after steam-water separator 5, condensed water is introduced into the second heat exchanger,
Extract condensed water heat, reduce condensate temperature, and using the heat that extracts at the same again heating seawater so as to afterburner 8
Hot sea water is provided, finally, the after-heat of condensed water is recycled by heat pump 9 and is sent into fresh-water tank 10 after cooling down and stored；From
The steam of steam-water separator discharge after First Heat Exchanger 6 recycles heat, it is therein can condensing become condensed water and enter fresh water
Case 10, remaining fixed gas are discharged into air by vacuum pump.
When brine strength reaches 35% or so in alembic 1, the sodium salt in seawater will start crystallization at first and be precipitated, and sea
Water total salt concentration constantly rises.When the crystal salt of precipitation reaches certain proportion in alembic 1, then salt/water in alembic 1
Mixture is periodically discharged to centrifugal filter 12 by brine bleeder valve 11 and carries out salt/water separation, the sea salt stored dry isolated.
And brine is then returned in alembic 1 by water pump 13 and is recycled.With continuous evaporative crystallization, the concentration of other salt in seawater
It is continuously improved, after reaching a certain concentration, other salt will crystallize precipitation successively.When the proportion of other salt in crystal salt reaches sea
When salt standard max, concentrated seawater has turned into bittern water, is no longer appropriate for continuing to extract sea salt sodium salt.At this point, whole tank strong brine is then made
It is sent into concentraing pond 14 for bittern water and carries out storage sale, or be dried to salt-mixture storage.
Embodiment only illustrates the technical solution of the utility model, rather than carries out any restrictions to it；Although with reference to aforementioned reality
Example is applied the utility model is described in detail, it for those of ordinary skill in the art, still can be to aforementioned
Technical solution recorded in embodiment is modified or equivalent replacement of some of the technical features；And these are changed
Or it replaces, the spirit and model of the utility model technical solution claimed that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (6)
1. pressing vapour method seawater desalination system, it is characterised in that：Including alembic, the evaporative condenser being arranged in alembic, with
The steam-water separator of evaporative condenser connection, the heat exchanger being connect with steam-water separator and the tank connected vapour compression machine of distillation
And centrifugal filter, Pistonless compressor are connect with evaporative condenser, centrifugal filter is connect with water pump, and water pump connects with alembic
It connects.
2. pressure vapour method seawater desalination system according to claim 1, it is characterised in that：Heat exchanger include First Heat Exchanger and
Second heat exchanger.
3. pressure vapour method seawater desalination system according to claim 2, it is characterised in that：Steam-water separator vapor outlet and first
Heat exchanger connects, and steam-water separator water out is connect with the second heat exchanger.
4. pressure vapour method seawater desalination system according to claim 3, it is characterised in that：Centrifugal filter is released by brine
Valve is connect with alembic.
5. pressure vapour method seawater desalination system according to claim 3, it is characterised in that：Further include heat pump, the second heat exchanger
It is connected with heat pump.
6. pressure vapour method seawater desalination system according to claim 3, it is characterised in that：Further include steam heater, steam
Heater is connect with vapour compression machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721558138.9U CN207619180U (en) | 2017-11-21 | 2017-11-21 | Press vapour method seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721558138.9U CN207619180U (en) | 2017-11-21 | 2017-11-21 | Press vapour method seawater desalination system |
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| Publication Number | Publication Date |
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| CN207619180U true CN207619180U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721558138.9U Active CN207619180U (en) | 2017-11-21 | 2017-11-21 | Press vapour method seawater desalination system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651805A (en) * | 2017-11-21 | 2018-02-02 | 青岛新欧亚能源有限公司 | Press vapour method sea water desalinating unit and method |
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2017
- 2017-11-21 CN CN201721558138.9U patent/CN207619180U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651805A (en) * | 2017-11-21 | 2018-02-02 | 青岛新欧亚能源有限公司 | Press vapour method sea water desalinating unit and method |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20230926 Address after: No.77 Huanghai Road, Economic and Technological Development Zone, Qinhuangdao City, Hebei Province, 066000 Patentee after: Qinhuangdao 85 Marine Technology Co.,Ltd. Address before: A3-3-24, Small and Medium Enterprise Incubator, No.1 Jinye Road, High tech Zone, Qingdao, Shandong Province, 266111 Patentee before: QINGDAO NEW EURO-ASIA ENERGY CO.,LTD. |