CN105439354B - Desalinization and salt manufacturing integrated apparatus - Google Patents
Desalinization and salt manufacturing integrated apparatus Download PDFInfo
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- CN105439354B CN105439354B CN201510934654.6A CN201510934654A CN105439354B CN 105439354 B CN105439354 B CN 105439354B CN 201510934654 A CN201510934654 A CN 201510934654A CN 105439354 B CN105439354 B CN 105439354B
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- 150000003839 salts Chemical class 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000013535 sea water Substances 0.000 claims abstract description 113
- 230000010349 pulsation Effects 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 30
- 238000002425 crystallisation Methods 0.000 claims abstract description 27
- 230000008025 crystallization Effects 0.000 claims abstract description 27
- 230000000295 complement effect Effects 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 230000008859 change Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 description 51
- 238000000034 method Methods 0.000 description 18
- 239000013505 freshwater Substances 0.000 description 17
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 13
- 239000011780 sodium chloride Substances 0.000 description 13
- 230000008901 benefit Effects 0.000 description 9
- 239000002775 capsule Substances 0.000 description 8
- 230000036461 convulsion Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 7
- 230000000087 stabilizing effect Effects 0.000 description 6
- 239000003595 mist Substances 0.000 description 5
- 238000001694 spray drying Methods 0.000 description 5
- 238000010612 desalination reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241001466077 Salina Species 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000004919 hair shaft Anatomy 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
- C01D3/06—Preparation by working up brines; seawater or spent lyes
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
-
- 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
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F2001/5218—Crystallization
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
-
- 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
- Y02A20/131—Reverse-osmosis
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of desalinization and salt manufacturing integrated apparatus, including feed pump, plunger type supercharging device, pulsating energy exchanger, pressure fan, heater, spray crystallization salt making apparatus, reverse osmosis membrane assembly, complementary energy recovery device and booster pump；The water inlet end of feed pump is connected with seawater, water side point two-way, plunger type supercharging device is wherein sequentially passed through all the way, pulsating energy exchanger produces stable high pressure sea water, complementary energy recovery device is sequentially passed through all the way in addition, booster pump converges into reverse osmosis membrane assembly preparing fresh with the high pressure sea water discharged from pulsating energy exchanger, the high pressure concentrated seawater discharged from reverse osmosis membrane assembly passes through complementary energy recovery device and produces low pressure concentrated seawater, low pressure concentrated seawater enters in spray crystallization salt making apparatus, the steady air flow discharged from pressure fan sequentially passes through heater, the thermal current that pulsating energy exchanger produces pulsation enters in spray crystallization salt making apparatus, low pressure concentrated seawater and the thermal current of pulsation mix evaporative crystallization salt manufacturing in spray crystallization salt making apparatus.
Description
The application is the Chinese applying date 2015 year 01 month 13, Application No. 2015100150200, and entitled " seawater is light
The divisional application of change and the method and device of salt manufacturing integration ".
Technical field
The present invention relates to a kind of water treatment facilities, the method and device of particularly a kind of desalinization and salt manufacturing.
Background technology
Scarcity of fresh water resources, energy scarcity and environmental crisis are the three major issues that China faces at present.Seawater is carried out light
Change and salt manufacturing comprehensive utilization, can effectively alleviate freshwater resources problem in short supply, be avoided that concentrated seawater is directly discharged, and also help
Reduce energy consumption and integrated cost.Nevertheless, the energy consumption and cost of progress desalinization at present and salt manufacturing comprehensive utilization are still very
Height, seriously constrains industrialized development.
In January, 2001《Agricultural mechanical journal》1st phase volume 32 " spray drying of pulse pneumatic " document is recorded, high temperature,
Spray drying under higher-order of oscillation air-flow improves more than 25 times than the evaporation rate of conventionally spray-dried, and in addition, pulsation is steamed
Hair shaft is dry also to have the advantages that energy-conservation, equipment cost are low, improve Environmental Pollution, therefore, will in order to improve the efficiency of salt manufacturing
Concentrated seawater after desalination is sprayed in the thermal current of pulsation, is the higher advanced salt making technology of current sexual valence.
Although also disclosing that " a kind of pulse combustion device " in above-mentioned " spray drying of pulse pneumatic ", the device can be produced
The thermal current of raw pulsation, but the apparatus structure is complicated, and performance is unstable, it is impossible to be applied in desalinization salt manufacturing.It is extra large at present
Water desalination, the pulsation hot gas stream generation method of salt manufacturing are：Stable air stream is produced by pressure fan, air stream is by being thermally formed
Stable thermal current, stable thermal current produces the thermal current of pulsation, the production of the thermal current of this pulsation by jerk pump again
Mode needs to use jerk pump, and the power consumption of jerk pump is higher, causes the energy consumption of system to remain high.
In addition, current desalinization mainly use reverse osmosis membrane technology, reverse osmosis membrane technology need 5.0MPa~
6.0MPa high pressure sea water, seawater booster apparatus ideal at present is plunger type supercharging device, plunger type supercharging device master
To be made up of piston, piston rod, pumping cylinder, pump valve, crank connecting link etc., operation principle is that piston does reciprocal fortune under external force
It is dynamic, thus change the volume and pressure in working chamber, negative pressure is formed in working chamber, then liquid enters work through inlet valve in storage tank
Make intracavitary, when the motion of piston reciprocation opens and closes suction, extrudes valve, the liquid in working chamber is squeezed, pressure
Increase, the purpose for reaching conveying liquid is discharged by dump valve.Because plunger type supercharging device piston is in moving process, its speed
Constantly change, the hydraulic pressure for causing plunger type supercharging device delivery port is pulsation, and the water under high pressure meeting serious curtailment pulsed is anti-
The service life of permeable membrane and the quality of influence freshwater product, so cannot directly enter reverse osmosis membrane assembly.Therefore, it is current
Need to increase stable-pressure device after the delivery port of plunger type supercharging device, to ensure to reach the stable water pressure in reverse osmosis membrane.At present
Conventional stable-pressure device has pressure-reducing valve, surge tank and accumulator etc., and these voltage stabilizing processes will consume many energy, moreover,
Stable-pressure device also results in system architecture complexity, equipment investment cost and floor space increase.
In summary, in current desalinization and salt making equipment, exist for stablizing plunger type supercharging device delivery port
The stable-pressure device of hydraulic pressure and the jerk pump for producing pulsation thermal current, cause current desalinization and salt-making process energy to disappear
Consumption is big, equipment investment is more and cost is high.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of energy utilization and transformation efficiency is high, operating cost drop
It is low, the method and device of desalinization and salt manufacturing integration with considerable economic benefit, social benefit and application value.
The technical solution adopted for the present invention to solve the technical problems is：
The method of a kind of desalinization and salt manufacturing integration, this method is：Pass through plunger type from the seawater of big marine extraction
Supercharging device is converted into the high pressure sea water of pulsation, and the high pressure sea water of pulsation and stable thermal current are real in pulsating energy switch
Existing energy exchange, is converted into stable high pressure sea water and the thermal current pulsed, and the high pressure sea water after voltage stabilizing passes through reverse osmosis membrane group
Part preparing fresh, the high-pressure thick sea water spray mist evaporative crystallization salt manufacturing into the thermal current of pulsation discharged from reverse osmosis membrane assembly.
As the further improvement to the above method, the high pressure concentrated seawater discharged from reverse osmosis membrane assembly with from sea
The seawater of middle extraction realizes energy exchange in complementary energy recovery device, and the sub-high pressure seawater discharged from complementary energy recovery device passes through
After booster pump supercharging, conflux with high pressure sea water discharge from pulsating energy switch and enter reverse osmosis membrane assembly, from complementary energy recovery
The low-press thick sea water spray mist discharged in device evaporative crystallization salt manufacturing into the thermal current of pulsation.
A kind of desalinization of use above method and salt making apparatus, the device include feed pump, plunger type supercharging device,
Pulsating energy exchanger, pressure fan, heater, spray crystallization salt making apparatus, reverse osmosis membrane assembly, complementary energy recovery device and supercharging
Pump；The water inlet end of the feed pump is connected with big marine seawater, the water side point two-way of the feed pump, wherein all the way successively
Stable high pressure sea water is produced by plunger type supercharging device, pulsating energy exchanger, complementary energy is sequentially passed through all the way in addition and reclaims dress
Put, booster pump, converge with the high pressure sea water discharged from pulsating energy exchanger into reverse osmosis membrane assembly preparing fresh, from described anti-
The high pressure concentrated seawater of permeable membrane element discharge produces low pressure concentrated seawater by complementary energy recovery device, and low pressure concentrated seawater enters the spray
In mist crystallization salt making apparatus, the steady air flow discharged from the pressure fan sequentially passes through heater, pulsating energy exchanger and produces arteries and veins
Dynamic thermal current enters in the spray crystallization salt making apparatus, and the thermal current of the low pressure concentrated seawater and pulsation is in spray crystallization system
Evaporative crystallization salt manufacturing is mixed in salt device.
The pulsating energy exchanger includes mutually isolated thermal current passway and high pressure sea water passage, the thermal current passway
Inside it is provided with to be provided with netted support set, the support set and changes pressure capsule by what elastomeric material was made, the pressure capsule that changes is set
There is the water inlet connected with the high pressure sea water passage.
The pulsating energy exchanger includes mutually isolated thermal current passway and high pressure sea water passage, the thermal current passway
Positioned at the surface of the high pressure sea water passage, piston mouthful is provided with the downside of the thermal current passway, the high pressure sea water leads to
Be provided with the upside of road and change pressure chamber, it is described change in pressure chamber to be provided with can stretch into the intraoral piston valve of the piston.
Flexible diaphragm seal is set at the piston mouthful.
Balancing weight is installed on the piston valve.
The beneficial effects of the invention are as follows：The pulsation energy for the pulsation high pressure sea water that the present invention produces plunger type supercharging device
Stable thermal current is delivered to by pulsating energy switch, stable high pressure sea water and the thermal current pulsed is formed, eliminates
The jerk pump in stable-pressure device and salt making equipment in current desalinization, simplifies the structure of system, reduces the throwing of equipment
Enter and floor space, saved the energy, the pulsating energy of high pressure sea water is directly delivered to the heat that pulsation is formed in stable thermal current
Air-flow, pulsating energy switch both instead of stable-pressure device, and can produce the thermal current pulsed without extra consumed energy,
The pulsating energy being harmful to originally is fully utilized, reached bi-directional energy-saving, reduced the purpose of cost, make comprehensive energy consumption and
Cost is greatly reduced, with considerable economic benefit, social benefit and application value.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the apparatus structure schematic diagram of the present invention；
Fig. 2 is the first embodiment structural representation of pulsating energy exchanger；
Fig. 3 is second of embodiment structural representation of pulsating energy exchanger.
Embodiment
The method of a kind of desalinization and salt manufacturing integration, this method is：Pass through plunger type from the seawater of big marine extraction
Supercharging device is converted into the high pressure sea water of pulsation, and the high pressure sea water of pulsation and stable thermal current are real in pulsating energy switch
Existing energy exchange, is converted into stable high pressure sea water and the thermal current pulsed, and the high pressure sea water after voltage stabilizing passes through reverse osmosis membrane group
Part preparing fresh, the high-pressure thick sea water spray mist evaporative crystallization salt manufacturing into the thermal current of pulsation discharged from reverse osmosis membrane assembly.
As a further improvement on the present invention, the high pressure concentrated seawater discharged from reverse osmosis membrane assembly from marine greatly with taking out
The seawater taken realizes energy exchange in complementary energy recovery device, and the sub-high pressure seawater discharged from complementary energy recovery device is by supercharging
After pump supercharging, conflux with the high pressure sea water discharged from pulsating energy switch and enter reverse osmosis membrane assembly, from complementary energy recovery device
The evaporative crystallization salt manufacturing into the thermal current of pulsation of the low-press thick sea water spray mist of middle discharge.
Reference picture 1, a kind of desalinization of use above method and salt making apparatus, including the supercharging of feed pump 12, plunger type
Device 15, pulsating energy exchanger 3, pressure fan 1, heater 2, spray crystallization salt making apparatus 4, reverse osmosis membrane assembly 7, complementary energy are reclaimed
Device 8 and booster pump 9.The water inlet end of the feed pump 12 is connected with the seawater in sea 14, the water side of the feed pump 12
Divide two-way, wherein sequentially passing through plunger type supercharging device 15, pulsating energy exchanger 3 all the way produces stable high pressure sea water, in addition
The high pressure sea water that complementary energy recovery device 8, booster pump 9 are sequentially passed through all the way with being discharged from pulsating energy exchanger 3, which converges, enters reverse osmosis
The preparing fresh of permeable membrane component 7, the fresh water produced is flowed into fresh-water tank 6 and stored, the high-pressure thick discharged from the reverse osmosis membrane assembly 7
Seawater produces low pressure concentrated seawater by complementary energy recovery device 8, and the spray crystallization salt making apparatus 4 is accessed in low-press thick sea by pipeline
In, the steady air flow discharged from the pressure fan 1 sequentially passes through heater 2, the hot gas of the generation pulsation of pulsating energy exchanger 3 and flowed into
Enter in the spray crystallization salt making apparatus 4, the thermal current of the low pressure concentrated seawater and pulsation is mixed in spray crystallization salt making apparatus 4
Close evaporative crystallization salt manufacturing.
The plunger type supercharging device 15, feed pump 12, the power of booster pump 9 may come from motor, motor from
External power grid draws working power, can also such as the technical scheme disclosed in the patent document of Patent No. 201010581552.8,
Power is produced using tide energy and the hydraulic turbine, drives plunger type supercharging device 15, feed pump 12, booster pump 9 to work.
In order to protect system equipment, the water outlet of the feed pump 12 can set sea water preprocessing device 11, and in sea
First throttle valve 10 and second throttle 13 are set in the two-way output channel of water preprocessor 11.Sea water preprocessing device 11 is main
It is made up of multimedium filter, char filter, cartridge filter etc..The effect of multimedium filter be filter out silt in seawater, impurity,
Suspension, reduces SDI (pollution index density) value of seawater.Char filter, which has, to be adsorbed and filtering double action, can filter out sea
Chemical organic compounds, heavy metal, colourity, peculiar smell in water etc., improve the mouthfeel that fresh water is made.Cartridge filter, which can be intercepted, to be more than
5 microns of object, extends the service life of reverse osmosis membrane assembly.
The hydraulic pressure of the high pressure sea water for the stabilization discharged from pulsating energy exchanger 3 is 5.0MPa~6.0MPa, from reverse osmosis membrane
The fresh water hydraulic pressure that component 7 is discharged is 0.15MPa, and concentrated seawater hydraulic pressure is 4.8MPa~5.8MPa, high pressure concentrated seawater and low pressure seawater
After the positive energy exchange of complementary energy recovery device 8, from complementary energy recovery device 8 discharge sub-high pressure seawater hydraulic pressure for 4.0MPa~
4.5MPa, 5.0MPa~6.0MPa is pressurized to by booster pump 9, confluxes with the high pressure sea water discharged from pulsating energy exchanger 3, enters
Enter preparing fresh in reverse osmosis membrane assembly 7, the low pressure concentrated seawater hydraulic pressure discharged from complementary energy recovery device 8 be 0.45MPa~
The hydraulic pressure of 0.55MPa, 0.45MPa~0.55MPa low pressure concentrated seawaters ensures the effect of spraying enough.
The plunger type supercharging device 15 is also known as plunger type metering pump, and such as Shanghai is produced along sub- Machinery Manufacturing Co., Ltd.
SZ-B-12.5/20 type plunger type metering pumps, maximum pressure can reach 20MPa, and stroke frequency is 58~116 beats/min, can be expired
Sufficient seawater boost and the requirement for producing pulsation thermal current.
The structure and operation principle of the complementary energy recovery device 8 are reclaimed with the complementary energy used in current seawater desalination system and filled
Put identical, the water energy-recuperation system as disclosed in Publication No. CN102974220B patent document, Qingdao Bonded Zone Jia Ming states
PX Series Pressure exchangers of border trade Co., Ltd production etc. can be used.Current complementary energy recovery device energy recovery rate can
More than 90% is reached, the water consumption processed of reverse osmosis seawater desalting can be substantially reduced, water producing cost is reduced.
The spray crystallization vaporising device structure of the spray crystallization vaporising device 4 and current desalinization and salina and
Operation principle is identical, is mainly made up of atomizer, spray drying chamber, cooling chamber etc., and the thermal current of pulsation enters hothouse, low pressure
Concentrated seawater is atomized under the pressure of itself by atomizer, with spray in the form of droplet to hothouse, with pulsation
Thermal current is mixed, and high temperature, higher-order of oscillation state is internally formed in spray drying chamber, thermal current is sufficiently mixed with concentrated seawater, is exchanged heat
Area increases, so as to reach the purpose of rapid evaporation drying in a short period of time.
In order that into the high pressure sea water more stability of reverse osmosis membrane assembly 7, can be in pulsating energy exchanger 3 and reverse osmosis
Install voltage-stablizer 5 on connecting pipe between permeable membrane component 7 additional, voltage-stablizer 5 is bellows structure conventional at present, and one is filled with capsule
The gas of constant-pressure is placed in high pressure water circuit, and when seawater pressure increases, the pressure energy of seawater is converted into the potential energy of gas, when
When seawater pressure reduces, the potential energy of gas is converted into the hydraulic pressure of seawater again, so as to reach protection reverse osmosis membrane assembly 7 and improve light
The effect of water quality.It should be noted that the main stable-pressure device in current desalinization and salt making system is by the application's
Pulsating energy exchanger 3 is replaced, and at present using in stable-pressure device and the desalinization of jerk pump and salt making system, there is also voltage stabilizing
The less two grades of pressure stabilizing mechanisms for playing secondary pressure of amplitude, the voltage-stablizer 5 of the application is equivalent to current desalinization and system
Two grades of pressure stabilizing mechanisms in salt system.
Conventional voltage-stablizer also has the principle of pressure-reducing valve, surge tank and accumulator etc., wherein surge tank and accumulator at present
It is similar, it is the compressible expansion characteristics using air.Pressure-reducing valve is used to reduce a part of pressure of certain in hydraulic system, works as pressure
Power consumes the pressure energy of part seawater, declines pressure by having during the gap aperture of larger resistance.Due to being stitched in pressure maintaining valve
The big I of gap pressure size needed for is voluntarily adjusted, thus can keep the stabilization of outlet pressure.Surge tank is based primarily upon sky
Surge tank, can be divided into direct contact type and the class of diaphragm type two by the compressible and expansion characteristics of gas by structure.Accumulator and barrier film
Formula surge tank is similar, i.e., when system capacity is more than needed, the pressure energy of hydraulic oil is converted into potential energy storage, when system needs
When again potential energy is converted into hydraulic oil pressure energy discharge.
The pulsating energy exchanger 3 is energy exchanger, can be realized from energy exchanger of the prior art.This
Invention provides two kinds of simple in construction, preferable pulsating energy exchanger arrangements of effect.
The first pulsating energy exchanger is that elasticity changes pressure bag type, and concrete structure is referring to Fig. 2, and the pulsating energy exchanger 3 is wrapped
Mutually isolated thermal current passway 30 and high pressure sea water passage 31 is included, the air inlet of thermal current passway 30 connects the exhaust of heater 2
End, the exhaust termination spray crystallization vaporising device 4 of thermal current passway 30, the water inlet of high pressure sea water passage 31 connects plunger type supercharging
The water side of device 15, the reversed permeable membrane element 7 of delivery port of high pressure sea water passage 31.It is provided with the thermal current passway 30
It is provided with netted support set 32, the support set 32 and changes pressure capsule 33 by what elastomeric material was made, the pressure capsule 33 that changes is set
There is the water inlet 34 connected with the high pressure sea water passage 31.When hydraulic pressure increases, the elastic pressure capsule 33 that changes outwards expands, volume
Increase, stops continuing to increase when increasing to equal with the volume of support set 32, when hydraulic pressure reduces, changes the pressure elastic reaction volume of capsule 33
Restore to the original state, elasticity changes the Volume Changes of pressure capsule 33, causes the size variation of the interior air-flow passage of thermal current passway 30, and thermal current
Flow is constant, so that the high pressure sea water pulsating energy of pulsation, i.e., passed to hot gas by the sometimes fast and sometimes slow generation pulsation effect of thermal current
Stream, forms the thermal current of pulsation.
Second of pulsating energy exchanger is Weight type, and concrete structure is referring to Fig. 3, and the pulsating energy exchanger 3 includes mutual
The thermal current passway 30 and high pressure sea water passage 31 of isolation, the connection of thermal current passway 30 and high pressure sea water passage 31 in systems
Mode is identical with first way.The thermal current passway 30 is located at the surface of the high pressure sea water passage 31, the hot gas
The downside of circulation road 30 is provided with piston mouthful 35, and the upside of the high pressure sea water passage 31, which is provided with, changes pressure chamber 36, described to change pressure
It is provided with room 36 on the piston valve 37 that can be stretched into the piston mouthful 35, the piston valve 37 and balancing weight 39 is installed.
When hydraulic pressure increases, the pressure energy of seawater is converted into the gravitional force of piston valve 37, and piston valve 37 is vertically raised, from
Change pressure chamber 36 to stretch into thermal current passway 30, the gas channel in thermal current passway 30 is diminished, but after hydraulic pressure reduction, piston valve
37 Action of Gravity Field are fallen naturally, the gas channel in thermal current passway 30 is become big, piston valve 37 is moved up and down, hot gas
Sometimes fast and sometimes slow generation pulsation effect is flowed, i.e., the high pressure sea water pulsating energy of pulsation has been passed to thermal current, the hot gas of pulsation is formed
Stream.
Flexible diaphragm seal 38 is set at sealing function, the piston mouthful 35 in order to play, piston valve 37 is moved upwards,
Jack-up diaphragm seal 38, is not only able to reach the purpose for changing the interior air-flow channel sized of thermal current passway 30, can also play sealing and make
With.
The pulsating energy of high pressure sea water of the present invention is directly delivered to the thermal current that pulsation is formed in stable thermal current, pulsating energy
Switch both instead of stable-pressure device, and the thermal current that can produce pulsation is without extra consumed energy, make original harmful
Pulsating energy be fully utilized, reached bi-directional energy-saving, reduced the purpose of cost, eliminated in current desalinization
Jerk pump in stable-pressure device and salt making equipment, simplifies the structure of system, reduces the input and floor space of equipment, saves
The energy, is greatly reduced comprehensive energy consumption and cost.
Using fresh-water recovery rate during desalinization be 40% and energy consumption cost is 50%, and the price of fresh water is 6 yuan/t, sea salt
Production cost is that 130 yuan/t is 0.13 yuan/kilogram, and the production cost of rock salt calculates for 0.24 yuan/kilogram, comprehensive effect of the invention
Benefit is analyzed as follows：
The mean salt degree of seawater is that salt content is 35 kilograms in 3.5%, i.e. 1t seawater.Using regular seawater desalination side
Method, produces 1t fresh water, needs 2.5t seawater, and is containing sea salt in 2.5t seawater：2.5 × 35=87.5 kilograms, production 87.5 is public
Jin sea salt compared to production 87.5 kilograms of rock salts difference profit be：87.5 × (0.24-0.13)=9.625 yuan, here it is production
One big economic advantages of sea salt.
When producing sea salt using seawater, seawater saturated concentration is 26%, is calculated according to this concentration, when 1t seawater quilts
When being evaporated to 135 kilograms, seawater, which reaches saturation and begins with sea salt, to be precipitated, it is necessary to which the fresh water evaporated is 865 kilograms.Using
The method and device of the present invention, 1t seawater is after desalinization, and the fresh water for having 400 kilograms has been recovered, then residue 600 is public
Contain 35 kilograms of sea salt in jin concentrated seawater.So, energy consumption cost reduced rate is when producing sea salt using remaining concentrated seawater：50% ×
400/865=23%, is also equivalent to Salt production cost and reduces 0.13 yuan/kilogram × yuan/kilogram of 23% ≈ 0.03.So
Production 1t fresh water simultaneously produces sea salt using concentrated seawater, and sea salt cost reduces 2.6 yuan of 87.5 kilograms × 0.03 yuan/kilogram ≈.
Present invention omits jerk pump so that system energy efficiency can improve more than 10%, then production 1t fresh water, sea salt
Produce cost and reduce 0.13 yuan/kilogram × 50% × 10% × 87.5 kilogram=0.57 yuan again.
So, 1t fresh water is produced using the method and device of the present invention, can be cost-effective：2.6+0.57=3.17 it is first.
Exemplified by producing the desalinization of 10000t fresh water daily, produce 10000t fresh water daily, sea salt 875t can be produced, then utilized
Conventional method, it is 130 × 875+6 × 10000=173750 member that cost is needed daily, then the cost of 1 year (by 365 days) is
Ten thousand yuan of 173750 × 365=6341.875, using the present invention method and device 1 year can cost-effective 365 × 10000 ×
Ten thousand yuan of 3.17=1157.05, with considerable economic benefit, social benefit and application value.
Claims (1)
1. a kind of desalinization and salt manufacturing integrated apparatus, it is characterised in that the device includes：Feed pump（12）, plunger type increase
Pressure device（15）, pulsating energy exchanger（3）, pressure fan（1）, heater（2）, spray crystallization salt making apparatus（4）, reverse osmosis membrane group
Part（7）, complementary energy recovery device（8）And booster pump（9）；The feed pump（12）Water inlet end connected with big marine seawater, institute
State feed pump（12）Water side point two-way, wherein sequentially passing through the plunger type supercharging device all the way（15）, pulsating energy exchange
Device（3）Stable high pressure sea water is produced, complementary energy recovery device is sequentially passed through all the way in addition（8）, booster pump（9）With being handed over from pulsating energy
Parallel operation（3）The high pressure sea water of discharge, which converges, enters reverse osmosis membrane assembly（7）Preparing fresh, from the reverse osmosis membrane assembly（7）Row
The high pressure concentrated seawater gone out passes through complementary energy recovery device（8）Low pressure concentrated seawater is produced, low pressure concentrated seawater enters the spray crystallization system
Salt device（4）In, from the pressure fan（1）The steady air flow of discharge sequentially passes through the heater（2）, pulsating energy exchanger
（3）The thermal current for producing pulsation enters the spray crystallization salt making apparatus（4）In, the thermal current of the low pressure concentrated seawater and pulsation
In spray crystallization salt making apparatus（4）Middle mixing evaporative crystallization salt manufacturing；The pulsating energy exchanger（3）Including mutually isolated hot gas
Circulation road（30）With high pressure sea water passage（31）, the thermal current passway（30）Positioned at the high pressure sea water passage（31）Just on
Side, the thermal current passway（30）Downside be provided with piston mouthful（35）, the high pressure sea water passage（31）Upside be provided with
Change pressure chamber（36）, it is described to change pressure chamber（36）The piston mouthful can be stretched into by being inside provided with（35）Interior piston valve（37）.
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| CN201510934654.6A CN105439354B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
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| CN201510934654.6A CN105439354B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510015020.0A CN104591461B (en) | 2015-01-13 | 2015-01-13 | The method of sea water desaltination and salt manufacturing integration |
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| CN201510934654.6A Expired - Fee Related CN105439354B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510934513.4A Expired - Fee Related CN105540968B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510015020.0A Expired - Fee Related CN104591461B (en) | 2015-01-13 | 2015-01-13 | The method of sea water desaltination and salt manufacturing integration |
| CN201510934515.3A Expired - Fee Related CN105439351B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510934576.XA Expired - Fee Related CN105439352B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510934579.3A Expired - Fee Related CN105439353B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
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| CN201510934513.4A Expired - Fee Related CN105540968B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510015020.0A Expired - Fee Related CN104591461B (en) | 2015-01-13 | 2015-01-13 | The method of sea water desaltination and salt manufacturing integration |
| CN201510934515.3A Expired - Fee Related CN105439351B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510934576.XA Expired - Fee Related CN105439352B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
| CN201510934579.3A Expired - Fee Related CN105439353B (en) | 2015-01-13 | 2015-01-13 | Desalinization and salt manufacturing integrated apparatus |
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| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
| US12040517B2 (en) | 2022-11-15 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
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| CN105126622B (en) * | 2015-09-02 | 2017-06-30 | 广东海洋大学 | A kind of dual Piston variable ratio frequency changer pulsating energy exchanger |
| CN105148733B (en) * | 2015-09-02 | 2017-06-23 | 广东海洋大学 | A kind of piston oscillation manifold type variable ratio frequency changer pulsating energy exchanger |
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| CN106277502A (en) * | 2016-08-29 | 2017-01-04 | 福建金源泉科技发展有限公司 | The filter element of a kind of water purification and process for purifying water |
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- 2015-01-13 CN CN201510934654.6A patent/CN105439354B/en not_active Expired - Fee Related
- 2015-01-13 CN CN201510934513.4A patent/CN105540968B/en not_active Expired - Fee Related
- 2015-01-13 CN CN201510015020.0A patent/CN104591461B/en not_active Expired - Fee Related
- 2015-01-13 CN CN201510934515.3A patent/CN105439351B/en not_active Expired - Fee Related
- 2015-01-13 CN CN201510934576.XA patent/CN105439352B/en not_active Expired - Fee Related
- 2015-01-13 CN CN201510934579.3A patent/CN105439353B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
| US12040517B2 (en) | 2022-11-15 | 2024-07-16 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell and methods of use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105439352A (en) | 2016-03-30 |
| CN105439353B (en) | 2017-10-13 |
| CN105439351A (en) | 2016-03-30 |
| CN105439354A (en) | 2016-03-30 |
| CN105540968A (en) | 2016-05-04 |
| CN105439351B (en) | 2017-10-27 |
| CN105439353A (en) | 2016-03-30 |
| CN104591461A (en) | 2015-05-06 |
| CN105540968B (en) | 2017-10-13 |
| CN105502784A (en) | 2016-04-20 |
| CN104591461B (en) | 2016-04-27 |
| CN105502784B (en) | 2018-03-02 |
| CN105439352B (en) | 2017-10-13 |
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