CN106830482A - A kind of afterheat steam utilizes seawater desalination system - Google Patents
A kind of afterheat steam utilizes seawater desalination system Download PDFInfo
- Publication number
- CN106830482A CN106830482A CN201710105037.4A CN201710105037A CN106830482A CN 106830482 A CN106830482 A CN 106830482A CN 201710105037 A CN201710105037 A CN 201710105037A CN 106830482 A CN106830482 A CN 106830482A
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- Prior art keywords
- flash chamber
- steam
- flash
- power plant
- condenser
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Seawater desalination system is utilized the invention discloses a kind of afterheat steam, including:Heater,Steam power plant's condenser,Flash chamber,Pumped vacuum systems,Removing carbon dioxide device and vacuum dust cather,The flash chamber point heat-recovery section and heat extraction section two parts,The heat extraction section sets two flash chambers,Described heat-recovery section is provided with 6 flash chambers,Fresh-water tank is provided with described flash chamber,Each flash chamber is connected by pipeline,Each flash chamber connects pumped vacuum systems,The heater connection steam power plant condenser,Steam of the thermal source of described heater from steam power plant's condenser heating,Steam power plant's condenser is heated using exhaust steam in steam turbine,Described removing carbon dioxide device and vacuum dust cather are arranged on seawater and enter on the inlet channel of the first flash chamber,Simple structure of the present invention,It is easy to operate,Apply also for power plant desulfurization purification of waste water simultaneously,Realize the various applications of set of system,South is used for desalinization,Realize thermal power plant desulfurization wastewater purification in the north.
Description
Technical field
The present invention relates to field of seawater desalination, more particularly to a kind of afterheat steam utilizes seawater desalination system.
Background technology
Solving in the middle of the nervous all multi-methods of coastal area freshwater resources, desalinization is a kind of practical and effective
Method.Wherein+multistage flash evaporation (Muiti--StageFlash is abbreviated as MSF) desalination technology occupies leading position.Its
Production capacity is the 56% of whole world desalinization total output.Scale is in the sea water desalinating unit of more than 4000t/d in the world,
MSF devices account for 77.3%.Desalination technology in China also in the starting stage, only a small amount of small reverse osmosis (R0) at present
Device, and the Development and Production of Large Copacity distilling apparatus (including multistage flash evaporation MSF, many religion evaporation ME, both vapor compression distillation VC etc.)
Just just start.
The content of the invention
In order to solve problems of the prior art, seawater desalination system is utilized the invention provides a kind of afterheat steam
The technical solution adopted by the present invention is：A kind of afterheat steam utilizes seawater desalination system, including:Heater, steam power plant are cold
Condenser, flash chamber, pumped vacuum systems, removing carbon dioxide device and vacuum dust cather, the flash chamber point heat-recovery section and heat extraction section
Two parts, the heat extraction section sets two flash chambers, and described heat-recovery section is provided with 6 flash chambers, in described flash chamber
Fresh-water tank is provided with, described flash chamber bottom is provided with baffle plate, the seawater of flash chamber bottom is divided into two parts, on flash chamber
Portion is provided with condensation pipe, maritime water in condensation pipe, and each flash chamber is connected by pipeline, and each flash chamber is connected and vacuumized
System, heater connection steam power plant condenser, the steam of the thermal source from steam power plant's condenser heating of described heater,
Steam power plant's condenser is heated using exhaust steam in steam turbine, and described removing carbon dioxide device and vacuum dust cather are arranged on seawater and enter
Enter on the inlet channel of the first flash chamber, strong brine emptying pump and brine recycling are connected by pipeline in the bottom of the first flash chamber
Pump.
Further, the vacuum in flash chamber is extracted into -0.0938MPa by described pumped vacuum systems
Below.
Further, described removing carbon dioxide device and vacuum dust cather, remove the most of carbon dioxide in water and dissolving
Oxygen, then into heat extraction the first flash chamber of section.
It is an advantage of the invention that：Simple structure of the present invention, it is easy to operate, while power plant desulfurization purification of waste water is applied also for,
The various applications of set of system are realized, south is used for desalinization, and thermal power plant desulfurization wastewater purification is realized in the north.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
In figure：1. heater, the flash chamber of 2-1. heat-recovery sections first, the flash chamber of 2-2. heat-recovery sections second, 2-3. heat are returned
Receive the flash chamber of section the 3rd, the flash chamber of 2-4. heat-recovery sections the 4th, the flash chamber of 2-5. heat-recovery sections the 5th, 2-6. heat-recovery sections the 6th
Flash chamber, the first flash chamber of 3-1. heat extractions section, 4. the second flash chamber of 3-2. heat extractions section, seawater, 5. row's refrigerated sea water, 6. charging
Water, 7. cyclic salt water pump, 8. heating steam, 9. row's strong brine pump, 10. fresh-water tank, 11. pumped vacuum systems, 12. acid addings add anti-
Infusion pipeline, 13. removing carbon dioxide devices, 14. vacuum dust cathers, 15. steam power plant's condensers.
Specific embodiment
In order to be able to be more clearly understood that technical scheme, the present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of afterheat steam utilizes seawater desalination system, including:Heater 1, steam power plant's condenser 15, sudden strain of a muscle
Steam room, pumped vacuum systems 11, removing carbon dioxide device 13 and vacuum dust cather 14, the flash chamber are divided to heat-recovery section and heat extraction section two
Part, heat extraction section two flash chambers of setting, respectively the first flash chamber 3-1 of heat extraction section, heat extraction the second flash chamber 3-2 of section,
Described heat-recovery section is provided with six flash chambers, respectively the first flash chamber of heat-recovery section 2-1, the flash chamber of heat-recovery section second
2-2, the flash chamber 2-3 of heat-recovery section the 3rd, the flash chamber 2-4 of heat-recovery section the 4th, the flash chamber 2-5 of heat-recovery section the 5th, recuperation of heat
Fresh-water tank 10 is provided with the 6th flash chamber 2-6 of section, described flash chamber, described flash chamber bottom is provided with baffle plate, sudden strain of a muscle
The seawater of steam room bottom is divided into two parts, and flash chamber top is provided with condenser pipe, maritime water in condenser pipe, and each flash chamber is by pipe
Road is connected, and each flash chamber connects pumped vacuum systems 11, the heater connection steam power plant condenser, described heater
The steam that thermal source is heated from steam power plant's condenser 15, steam power plant's condenser 15 is heated using exhaust steam in steam turbine, described
Removing carbon dioxide device 13 and vacuum dust cather 14 are arranged on seawater and enter on the inlet channel of the first flash chamber 3-1 of heat extraction section,
The bottom of the first flash chamber 3-1 of heat extraction section connects row's strong brine pump 9 and salt water circulating pump 7 by pipeline；Described vacuumizing be
Be extracted into vacuum in flash chamber below -0.0938MPa by system；Described removing carbon dioxide device 13 and vacuum dust cather 14, removes
Most of carbon dioxide and dissolved oxygen in water, then into heat extraction the first flash chamber of section.
Operation principle：Injection seawater in flash chamber, starts strong brine emptying pump, salt water circulating pump, makes in the first flash chamber
Then stable level starts vacuum system in 300 ~ 400mm or so, vacuum in container is extracted into below -0.0938MPa, seashore
The former seawater that pumping plant is sent initially enters heat extraction section, the condenser pipe of flash vessel be used for condensing produced in flash chamber steam (while
Seawater is heated), return to sea from discharge section seawater out is most of, other part is through acid adding with being sequentially entered after antifoaming agent
Removing carbon dioxide device and vacuum dust cather, remove the most of carbon dioxide and dissolved oxygen in water, are dodged then into discharge section
In the final stage flash chamber of steaming device, and mix and be pumped into heat-recovery section flash chamber through brine recycling again with flash distillation indoor circulation salt solution
Condenser pipe, the steam flashed off in each flash chamber is condensed along the direction opposite with flash distillation saline flow successively, while itself
Be gradually heated by the sonochemical activity, from the flash chamber condenser pipe of heat-recovery section the 6th out after, into heater, be further heated that (temperature rise is 7 DEG C
Left and right), heated circulating brine enters the flash chamber bottom of heat-recovery section the 6th, because now its temperature is more than heat-recovery section the
The corresponding saturation temperature of six flash chamber vacuum, circulating brine starts flash distillation, and the steam for flashing off is in condensing zone condensation and vacuum system
In the presence of system pumping, it is upwardly into condensing zone and is condensed, the water droplet after condensation falls into the fresh-water tank of condenser pipe bottom, does not coagulate
Steam and on-condensible gas are extracted out by vacuum exhaust pipe.Said process is repeated step by step later, to heat extraction the first flash chamber of section, a part
Flash distillation salt solution is discharged by strong brine emptying pump, and the fresh water converged in fresh-water tank is pumped into product water tank by product water.Above procedure
In, from back to front, adiabatic condensation temperature more and more higher, saturation pressure corresponding to it also more and more higher, therefore flash vessel produces step by step
Pressure differential, it is the power that circulating brine and product fresh water flow backward step by step.
The steam heated using steam-condenser of thermal power plants as heater heating source of the gas, condenser added using exhaust steam in steam turbine
Heat, make use of the low-grade steam of steam power plant, reduce the thermal loss of steam power plant, improve energy utilization rate.
The above is only better embodiment of the invention, therefore all constructions according to described in present patent application scope,
The equivalent change or modification that feature and principle are done, is included in the range of present patent application.
Claims (3)
1. a kind of afterheat steam utilizes seawater desalination system, it is characterised in that including:Heater, steam power plant's condenser, flash distillation
Room, pumped vacuum systems, removing carbon dioxide device and vacuum dust cather, the flash chamber point heat-recovery section and heat extraction section two parts, institute
State heat extraction section and two flash chambers are set, described heat-recovery section is provided with 6 flash chambers, fresh water is provided with described flash chamber
Groove, described flash chamber bottom is provided with baffle plate, and the seawater of flash chamber bottom is divided into two parts, and flash chamber top is provided with cold
Solidifying pipeline, maritime water in condensation pipe, each flash chamber is connected by pipeline, and each flash chamber connects pumped vacuum systems, described
Heater connection steam power plant condenser, the steam of the thermal source from steam power plant's condenser heating of described heater, the thermoelectricity
Factory's condenser is heated using exhaust steam in steam turbine, and described removing carbon dioxide device and vacuum dust cather are arranged on seawater and are dodged into first
On the inlet channel of steam room, strong brine emptying pump and salt water circulating pump are connected by pipeline in the bottom of the first flash chamber.
2. a kind of afterheat steam according to claim 1 utilizes seawater desalination system, it is characterised in that described vacuumizes
Be extracted into vacuum in flash chamber below -0.0938MPa by system.
3. a kind of afterheat steam according to claim 1 utilizes seawater desalination system, it is characterised in that described except dioxy
Change carbon device and vacuum dust cather, remove most of carbon dioxide and dissolved oxygen in water, flashed then into heat extraction section first
It is indoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105037.4A CN106830482A (en) | 2017-02-25 | 2017-02-25 | A kind of afterheat steam utilizes seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105037.4A CN106830482A (en) | 2017-02-25 | 2017-02-25 | A kind of afterheat steam utilizes seawater desalination system |
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| Publication Number | Publication Date |
|---|---|
| CN106830482A true CN106830482A (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105037.4A Pending CN106830482A (en) | 2017-02-25 | 2017-02-25 | A kind of afterheat steam utilizes seawater desalination system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792687A (en) * | 2020-07-07 | 2020-10-20 | 西安热工研究院有限公司 | Heat supply network drainage waste heat recovery device and method for thermal power plant based on seawater desalination technology |
| CN111924921A (en) * | 2020-09-17 | 2020-11-13 | 成都建筑材料工业设计研究院有限公司 | System and method for realizing cement production and seawater desalination in coastal region in combined manner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2808881Y (en) * | 2005-12-22 | 2006-08-23 | 河北电力设备厂 | Multistage flash-evaporation sea water desalting device |
| CN102951658A (en) * | 2012-11-23 | 2013-03-06 | 湖北双环科技股份有限公司 | Denitration salt and sulfate co-production process of five-effect vacuum evaporation salt production heat pump |
-
2017
- 2017-02-25 CN CN201710105037.4A patent/CN106830482A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2808881Y (en) * | 2005-12-22 | 2006-08-23 | 河北电力设备厂 | Multistage flash-evaporation sea water desalting device |
| CN102951658A (en) * | 2012-11-23 | 2013-03-06 | 湖北双环科技股份有限公司 | Denitration salt and sulfate co-production process of five-effect vacuum evaporation salt production heat pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792687A (en) * | 2020-07-07 | 2020-10-20 | 西安热工研究院有限公司 | Heat supply network drainage waste heat recovery device and method for thermal power plant based on seawater desalination technology |
| CN111792687B (en) * | 2020-07-07 | 2024-01-19 | 西安热工研究院有限公司 | Heat supply network drainage waste heat recovery device and method for thermal power plant based on sea water desalination technology |
| CN111924921A (en) * | 2020-09-17 | 2020-11-13 | 成都建筑材料工业设计研究院有限公司 | System and method for realizing cement production and seawater desalination in coastal region in combined manner |
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Application publication date: 20170613 |
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