CN105110397A - Sea water desalination apparatus - Google Patents
Sea water desalination apparatus Download PDFInfo
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- CN105110397A CN105110397A CN201510621290.6A CN201510621290A CN105110397A CN 105110397 A CN105110397 A CN 105110397A CN 201510621290 A CN201510621290 A CN 201510621290A CN 105110397 A CN105110397 A CN 105110397A
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- plate
- sealing
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- housing
- seawater
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- 239000013535 sea water Substances 0.000 title claims abstract description 219
- 238000010612 desalination reaction Methods 0.000 title abstract description 4
- 238000001704 evaporation Methods 0.000 claims abstract description 109
- 230000008020 evaporation Effects 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims description 56
- 230000008676 import Effects 0.000 claims description 48
- 238000004891 communication Methods 0.000 claims description 20
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 238000009833 condensation Methods 0.000 description 13
- 230000005494 condensation Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 5
- 238000011033 desalting Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a sea water desalination apparatus, comprising a heater, a single-effect evaporator, a double-effect evaporator, a triple-effect evaporator, a water collector, a condenser and a sea water pump, wherein the single-effect evaporator is a first plate heat exchanger and both the double-effect evaporator and the triple-effect evaporator are second plate heat exchangers. In the apparatus provided by the invention, tubular heat exchangers are replaced with the plate heat exchangers, two media in the plate exchangers reversely flow, heat exchange efficiency is high, and thus an end temperature difference about 1 DEG C can be economically achieved; meanwhile, plates need not be too long, and compared with the tubular heat exchangers, the apparatus enables the effective reduction in size of the heat exchangers and thus enables the reduction in floor area of a sea water desalination multiple-effect evaporation system.
Description
Technical field
The present invention relates to field of sea water desalting technology, particularly a kind of sea water desalinating plant.
Background technology
In sea water desaltination multi-effect evaporation system, generally use tubular heat exchanger, tubular heat exchanger is primarily of housing, tube bank, tube sheet and envelope first class sections composition, and how rounded housing is, and bundle of parallel tubes is equipped with in inside, and tube bank two ends are fixed on tube sheet.The flow state of tubular heat exchanger and two medium flow to the end Temperature Difference Ratio determining tubular heat exchanger higher (i.e. cooling water inlet temperature and cooled mouth leaving water temperature(LWT) poor), cause the length of tubular heat exchanger longer, the volume of tubular heat exchanger is comparatively large, causes the floor space of sea water desaltination multi-effect evaporation system larger.
Therefore, how to reduce the floor space of sea water desaltination multi-effect evaporation system, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of sea water desalinating plant, to reduce the floor space of sea water desaltination multi-effect evaporation system.
For achieving the above object, the invention provides following technical scheme:
A kind of sea water desalinating plant, comprising:
Well heater, the inlet end input steam of described well heater;
The 1st effective evaporator be communicated with described well heater, the water outlet of described 1st effective evaporator is in communication with the outside, described 1st effective evaporator comprises the first housing and is arranged on the first plate-type heat exchanger in described first housing, the side of described first housing is provided with the first opening, and the top of described first housing is provided with the first cold plate;
2nd effect evaporator, described 2nd effect evaporator comprises the second housing and is arranged on the second plate-type heat exchanger in described second housing, the first dividing plate for being separated at the two ends up and down of described second housing is provided with in described second housing, the upper end of described second housing is provided with the second opening with described first open communication, the lower end of described second housing is arranged imitates with next the 3rd opening be communicated with, and the top of described second housing is provided with the second cold plate;
Triple-effect evaporator, described triple-effect evaporator comprises the 3rd housing and is arranged on described second plate-type heat exchanger in described 3rd housing, the second partition for being separated at the two ends up and down of described 3rd housing is provided with in described 3rd housing, the upper end of described 3rd housing is provided with the 4th opening with described 3rd open communication, the lower end of described 3rd housing be provided be in communication with the outside or next effect be communicated with the 5th opening, the top of described 3rd housing is provided with the 3rd cold plate;
The steam ejector be all communicated with described 3rd housing with described second housing;
The water collector be communicated with described triple-effect evaporator with described 2nd effect evaporator;
The condenser be connected with described 1st effective evaporator, described 2nd effect evaporator and described triple-effect evaporator;
The sea-water pump of seawater can be provided for described 1st effective evaporator, 2nd effect evaporator and described triple-effect evaporator;
Described first plate-type heat exchanger comprises the first front end-plate, the first back head be arranged in parallel with described first front end-plate, to be arranged between described first front end-plate and described first back head and the first plate be arranged in parallel with described first front end-plate and the two ends up and down that are arranged on described first plate can support the first back up pad of described first plate, the upper end of described first plate is provided with the first thermal source import for entering for steam, the lower end of described first plate is provided with the first thermal source outlet for flowing out for described steam, the first sea intake entered for supplying seawater and the first evaporation side seawater inlet, the side of described first plate arranges the first sealing-ring and the second sealing-ring, described first thermal source import and described first thermal source outlet are arranged in the space that described first sealing-ring encloses, described first sea intake and described first evaporation side seawater inlet are positioned at the space that described second sealing-ring encloses, the opposite side of described first plate is provided with the 3rd sealing-ring, 4th sealing-ring and the 5th sealing-ring, described 3rd sealing-ring is opening towards one end of described first thermal source import, described first sea intake and described first evaporation side seawater inlet are positioned at the space that described 3rd sealing-ring encloses, described first thermal source import is positioned at the space that described 5th sealing-ring encloses, described first thermal source outlet is positioned at the space that described 4th sealing-ring encloses, adjacent described first plate be provided with described first sealing-ring and described second sealing-ring side coordinate or adjacent described first plate be provided with described 3rd sealing-ring, the side of described 4th sealing-ring and described 5th sealing-ring coordinates,
Described second plate-type heat exchanger comprises the second front end-plate, the second back head be arranged in parallel with described second front end-plate, to be arranged between described second front end-plate and described second back head and the second plate be arranged in parallel with described second front end-plate and the two ends up and down that are arranged on described second plate can support the second back up pad of described second plate, the upper end of described second plate is provided with the Secondary Heat Source import for entering for seawater, second sea intake and the second evaporation side seawater inlet, the lower end of described second plate is provided with Secondary Heat Source outlet, the side of described second plate is provided with the 6th sealing-ring and the 7th sealing-ring, described Secondary Heat Source import and the outlet of described Secondary Heat Source are positioned at the space that described 6th sealing-ring encloses, described second sea intake and described second evaporation side seawater inlet are positioned at the space that described 7th sealing-ring encloses, the opposite side of described second plate is provided with the 8th sealing-ring, 9th sealing-ring and the tenth sealing-ring, the side that described 8th sealing-ring exports towards described Secondary Heat Source is provided with opening, described second sea intake and described second evaporation side seawater inlet are positioned at the space that described 8th sealing-ring encloses, described Secondary Heat Source import is positioned at the space that described 9th sealing-ring encloses, described Secondary Heat Source outlet is positioned at the space that described tenth sealing-ring encloses, adjacent described second plate be provided with the 6th sealing-ring and the 7th sealing-ring side coordinate or adjacent described second plate be provided with the 8th sealing-ring, the side of the 9th sealing-ring and the tenth sealing-ring coordinates.
Preferably, in above-mentioned sea water desalinating plant, in described 1st effective evaporator, be provided with at least two group first plate-type heat exchangers.
Preferably, in above-mentioned sea water desalinating plant, also comprise quadruple effect evaporator, described quadruple effect evaporator comprises the 4th housing and is arranged on described second plate-type heat exchanger in described 4th housing, the 3rd dividing plate for being separated at the two ends up and down of described 4th housing is provided with in described 4th housing, the upper end of described 4th housing is provided with the 6th opening with described 5th open communication, the lower end of described 4th housing is provided with the 7th opening be in communication with the outside, top in described 4th housing is provided with the 4th cold plate, described quadruple effect evaporator and described condenser, described sea-water pump is all communicated with described steam ejector.
Preferably, in above-mentioned sea water desalinating plant, the water outlet end of described sea-water pump is provided with strainer.
Preferably, in above-mentioned sea water desalinating plant, the described first thermal source import of the first plate-type heat exchanger is positioned at the mid-way, top of plate described in first, and described first thermal source outlet and described first sea intake are all positioned at the lower end of described first plate and are positioned at the both sides of described first thermal source import;
The described Secondary Heat Source outlet of the second plate-type heat exchanger is positioned at the mid-way, lower end of described second plate, and described Secondary Heat Source import and described second sea intake are positioned at the upper end of described second plate and are positioned at the two ends of described Secondary Heat Source outlet.
Preferably, in above-mentioned sea water desalinating plant, described first plate is all connected by push bolt with described second plate.
Preferably, in above-mentioned sea water desalinating plant, described first plate and described second plate are titanium plate.
Preferably, in above-mentioned sea water desalinating plant, described first plate and described second plate are waved plate.
Preferably, in above-mentioned sea water desalinating plant, described first sealing-ring, described second sealing-ring, described 3rd sealing-ring, described 4th sealing-ring, the 5th sealing-ring, the 6th sealing-ring, the 7th sealing-ring, the 8th sealing-ring the 9th sealing-ring and the tenth sealing-ring are rubber seal.
Preferably, in above-mentioned sea water desalinating plant, the diameter of described first evaporation side seawater inlet and described second evaporation side seawater inlet is 6-8mm.
As can be seen from technique scheme, sea water desalinating plant provided by the invention comprises well heater, 1st effective evaporator, 2nd effect evaporator, triple-effect evaporator, water collector, condenser, steam ejector and sea-water pump, wherein 1st effective evaporator adopts the first plate-type heat exchanger, and 2nd effect evaporator and triple-effect evaporator adopt the second plate-type heat exchanger.First plate of the first plate-type heat exchanger is arranged the first thermal source import, first thermal source outlet, first sea intake and the first evaporation side seawater inlet, the side that the first adjacent plate is provided with the first sealing-ring and the second sealing-ring coordinates or is provided with the side cooperation of the 3rd sealing-ring and the 4th sealing-ring, after being provided with the side cooperation of the first sealing-ring and the second sealing-ring, the first steam cavity is formed after the first relative sealing-ring coordinates, the first seawater cavity is formed after the second relative sealing-ring coordinates, be provided with the 3rd sealing-ring, after the side cooperation of the 4th sealing-ring and the 5th sealing-ring, the first evaporation of seawater cavity is formed after the 3rd relative sealing-ring coordinates, the 3rd steam cavity is formed after the 4th relative sealing-ring coordinates, first thermal source import and the first evaporation of seawater cavity are isolated by the 5th sealing-ring.In desalting process, steam enters the first steam cavity by the first thermal source import, seawater enters the first seawater cavity by the first sea intake, when the height of the elevation of water surface in the first seawater cavity more than the first evaporation side seawater inlet, seawater enters the first evaporation of seawater cavity by the first evaporation side seawater inlet, the both sides of each first evaporation of seawater cavity are the first steam cavity, can effectively evaporate the seawater in the first evaporation of seawater cavity, the water vapour that evaporation of seawater produces flow to the first cold plate by the opening on the 3rd sealing-ring, fresh water collecting device is guided to by the first cold plate, next effect evaporation is entered by the first thermal source outlet after steam plays a role in steam cavity.
Second plate-type heat exchanger second plate arranges Secondary Heat Source import, Secondary Heat Source exports, second sea intake and the second evaporation side seawater inlet, the side that the second adjacent plate is provided with the 6th sealing-ring and the 7th sealing-ring coordinates or is provided with the 8th sealing-ring, the side of the 9th sealing-ring and the tenth sealing-ring coordinates, after being provided with the side cooperation of the 6th sealing-ring and the 7th sealing-ring, the second steam cavity is formed after the 6th relative sealing-ring coordinates, the second seawater cavity is formed after the 7th relative sealing-ring coordinates, be provided with the 8th sealing-ring, after 9th sealing-ring and the tenth sealing-ring side coordinate, the second evaporation of seawater cavity is formed after the 8th relative sealing-ring coordinates, the 4th steam cavity is formed after the 9th relative sealing-ring coordinates, Secondary Heat Source import and the second evaporation of seawater cavity are separated by the tenth sealing-ring, steam enters the second steam cavity by Secondary Heat Source import, then next effect is delivered to by Secondary Heat Source outlet, seawater sends into the second seawater cavity by the second sea intake, when the height of the liquid level in seawater cavity more than the second evaporation side seawater inlet, seawater enters the second evaporation of seawater cavity, the steam formed enters the housing of corresponding vaporizer by the opening on the 8th sealing-ring, then condensation is carried out by cold plate.
The device that this programme provides utilizes plate-type heat exchanger to replace tubular heat exchanger, two media countercurrent flow in plate-type heat exchanger, add that heat exchange efficiency is high, can the end temperature difference of accomplishing about 1 DEG C of very economical, now do not need plate length very long, the volume of interchanger can be effectively reduced relative to tubular heat exchanger, thus reduce the floor space of sea water desaltination multi-effect evaporation system.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schema of the sea water desalinating plant that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the first plate side that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the first plate opposite side that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the second plate side that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the second plate opposite side that Fig. 5 provides for the embodiment of the present invention.
1, well heater, 2,1st effective evaporator, the 21, first plate, 22, the first thermal source import, the 23, first thermal source outlet, the 24, first sea intake, 25, the first evaporation side seawater inlet, 3,2nd effect evaporator, the 31, second plate, 32, Secondary Heat Source import, 33, Secondary Heat Source outlet, the 34, second sea intake, 35, the second evaporation side seawater inlet, 4, triple-effect evaporator, 5, quadruple effect evaporator, 6, steam ejector.
Embodiment
The invention discloses a kind of sea water desalinating plant, to reduce the floor space of sea water desaltination multi-effect evaporation system.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 5, the schema of the sea water desalinating plant that Fig. 1 provides for the embodiment of the present invention; The structural representation of the first plate side that Fig. 2 provides for the embodiment of the present invention; The structural representation of the first plate opposite side that Fig. 3 provides for the embodiment of the present invention; The structural representation of the second plate side that Fig. 4 provides for the embodiment of the present invention; The structural representation of the second plate opposite side that Fig. 5 provides for the embodiment of the present invention.
The invention discloses a kind of sea water desalinating plant, comprising:
Well heater 1, the inlet end input steam of well heater 1, for sea water desalinating plant provides thermal source;
The 1st effective evaporator 2 be communicated with well heater 1, the water outlet of 1st effective evaporator 2 is in communication with the outside, 1st effective evaporator 2 comprises the first housing and is arranged on the first plate-type heat exchanger in the first housing, the side of the first housing is provided with the first opening, the top of the first housing is provided with the first cold plate, seawater enters 1st effective evaporator and carries out preliminary treatment, and provides thermal source for subsequent evaporation device;
2nd effect evaporator 3,2nd effect evaporator 3 comprises the second housing and is arranged on the second plate-type heat exchanger in the second housing, the first dividing plate for being separated at the two ends up and down of the second housing is provided with in second housing, the upper end of the second housing is provided with the second opening with the first open communication, the lower end of the second housing arranges the 3rd opening be communicated with triple-effect evaporator, the top of the second housing is provided with the second cold plate, and the seawater through preliminary treatment carries out secondary treatment in 2nd effect evaporator;
Triple-effect evaporator 4, triple-effect evaporator 4 comprises the 3rd housing and is arranged on the second plate-type heat exchanger in the 3rd housing, the second partition for being separated at the two ends up and down of the 3rd housing is provided with in 3rd housing, the upper end of the 3rd housing is provided with the 4th opening with the 3rd open communication, the lower end of the 3rd housing is provided with and is in communication with the outside or imitates with next the 5th opening be communicated with, the top of the 3rd housing is provided with the 3rd cold plate, and the seawater through secondary treatment carries out three process in triple-effect evaporator;
The steam ejector 6 be all communicated with the 3rd housing with the second housing, steam ejector 6 makes 2nd effect evaporator and triple-effect evaporator form negative pressure;
The water collector be communicated with triple-effect evaporator 4 with 2nd effect evaporator 3;
The condenser be connected with 1st effective evaporator 2,2nd effect evaporator 3 and triple-effect evaporator 4, an effect of condenser is for seawater element system manufactures negative pressure, is carry out condensation to fresh water on the other hand;
The sea-water pump of seawater can be provided for 1st effective evaporator 2,2nd effect evaporator 3 and triple-effect evaporator 4;
First plate-type heat exchanger comprises the first front end-plate, the first back head be arranged in parallel with the first front end-plate, to be arranged between the first front end-plate and the first back head and the first plate 21 be arranged in parallel with the first front end-plate and the two ends up and down that are arranged on the first plate 21 can support the first back up pad of the first plate 21, the upper end of the first plate 21 is provided with the first thermal source import 22 for entering for steam, the lower end of the first plate 21 is provided with the first thermal source outlet 23 for flowing out for steam, for the first sea intake 24 and the first evaporation side seawater inlet 25 entered for seawater, the side of the first plate 21 arranges the first sealing-ring and the second sealing-ring, first thermal source import 22 and the first thermal source outlet 23 are arranged in the space that the first sealing-ring encloses, first sea intake 24 and the first evaporation side seawater inlet 25 are positioned at the space that the second sealing-ring encloses,
The opposite side of the first plate 21 is provided with the 3rd sealing-ring, 4th sealing-ring and the 5th sealing-ring, 3rd sealing-ring is opening towards one end of the first thermal source import 22, first sea intake 24 and the first evaporation side seawater inlet 25 are positioned at the space that the 3rd sealing-ring encloses, first thermal source import 22 is positioned at the space that the 5th sealing-ring encloses, first thermal source outlet 23 is positioned at the space that the 4th sealing-ring encloses, adjacent first plate 21 be provided with the first sealing-ring and the second sealing-ring side coordinate or adjacent first plate 21 be provided with the 3rd sealing-ring, the side of the 4th sealing-ring and the 5th sealing-ring coordinates,
On adjacent first plate 21, the first sealing-ring forms the first steam cavity after coordinating, thermal source enters the first steam cavity by the first thermal source import 22, then discharged by the first thermal source outlet 23, second sealing-ring of adjacent first plate 21 coordinates rear formation the first seawater cavity, temporarily stores seawater;
The first evaporation of seawater cavity is formed after the 3rd sealing-ring on adjacent first plate 21 coordinates, when the height of the liquid level in seawater cavity more than the first evaporation side seawater inlet, seawater enters the first evaporation of seawater cavity by the first evaporation side seawater inlet 25, first thermal source import 22 and the first evaporation of seawater cavity are separated by the 5th sealing-ring, first thermal source outlet 23 is separated with the first evaporation of seawater chamber by the 4th sealing-ring, the 4th relative sealing-ring is combined to form the 3rd steam cavity, temporary transient storage is carried out to steam, preferably, the area of the 3rd steam cavity is the smaller the better,
Second plate-type heat exchanger comprises the second front end-plate, the second back head be arranged in parallel with the second front end-plate, to be arranged between the second front end-plate and the second back head and the second plate 31 be arranged in parallel with the second front end-plate and the two ends up and down that are arranged on the second plate 31 can support the second back up pad of the second plate 31, the upper end of the second plate 31 is provided with the Secondary Heat Source import 32 for entering for seawater, second sea intake 34 and the second evaporation side seawater inlet 35, the lower end of the second plate 31 is provided with Secondary Heat Source outlet 33, the side of the second plate 31 is provided with the 6th sealing-ring and the 7th sealing-ring, Secondary Heat Source import 32 and Secondary Heat Source outlet 33 are positioned at the space that the 6th sealing-ring encloses, second sea intake 34 and the second evaporation side seawater inlet 35 are positioned at the space that the 7th sealing-ring encloses, after adjacent second plate 31 is provided with the side cooperation of the 6th sealing-ring and the 7th sealing-ring, the second steam cavity is formed after the 6th relative sealing-ring coordinates, thermal source enters the second steam cavity by Secondary Heat Source import 32, then next effect is delivered to by Secondary Heat Source outlet 33, the second seawater cavity is formed after the 7th relative sealing-ring coordinates, seawater is temporarily stored,
The opposite side of the second plate 31 is provided with the 8th sealing-ring, 9th sealing-ring and the tenth sealing-ring, 8th sealing-ring is provided with opening towards the side of Secondary Heat Source outlet 33, second sea intake 34 and the second evaporation side seawater inlet 35 are positioned at the space that the 8th sealing-ring encloses, Secondary Heat Source import 32 is positioned at the space that the 9th sealing-ring encloses, Secondary Heat Source outlet 33 is positioned at the space that the tenth sealing-ring encloses, adjacent second plate 31 is provided with the 8th sealing-ring, the side of the 9th sealing-ring and the tenth sealing-ring coordinates, the second evaporation of seawater cavity is formed after the 8th relative sealing-ring combination, the 4th steam cavity is formed after 9th sealing-ring combination, Secondary Heat Source import 32 and the second evaporation of seawater cavity are separated by the tenth sealing-ring.
First sealing-ring, the second sealing-ring, the 3rd sealing-ring, the 4th sealing-ring, the 5th sealing-ring, the 6th sealing-ring, the 7th sealing-ring, the 8th sealing-ring, the 9th sealing-ring and the tenth sealing-ring are totally-enclosed sealing-ring.
The desalting process of 1st effective evaporator:
In 1st effective evaporator, provide thermal source by well heater 1, i.e. steam, steam enters the first steam cavity by the first thermal source import 22, and steam moves from top to bottom; Seawater is pumped into pipeline by sea-water pump, the first sea intake 2 is sent into by pipeline, when the elevation of water surface in the first seawater cavity is more than the first evaporation side seawater inlet 25, seawater enters the first evaporation of seawater cavity by the first evaporation side seawater inlet 25, and seawater is filled with the first evaporation of seawater cavity from bottom to top in the first evaporation of seawater cavity; First steam cavity and the first evaporation of seawater cavity interval are arranged, steam heat in first steam cavity passes to the seawater in the first evaporation of seawater cavity by the first plate 21, make the evaporation of seawater in the first evaporation of seawater cavity, the water vapour that evaporation of seawater is formed rises to the first cold plate by the opening on the 3rd sealing-ring, by the first cold plate, condensation is carried out to water vapour, realize the preliminary desalination of seawater, the steam in the first steam cavity is delivered to outside sea water desalinating plant by the first thermal source outlet 23;
The desalting process of 2nd effect evaporator:
The water vapour part that first evaporation of seawater chamber of 1st effective evaporator produces passes through the first cold plate condensation, remaining part is sent by the first opening of 1st effective evaporator first housing, upper end second open communication of the second housing of the first opening and 2nd effect evaporator 3, the steam ejector 6 be communicated with the second housing makes to form negative pressure in the second housing, steam in first housing enters the second housing by the first opening by the second opening under the effect of negative pressure, condensation can be there is in some vapor on the second cold plate, the steam of condensation is not had to enter the second steam cavity by the Secondary Heat Source import 32 of the second plate-type heat exchanger, seawater is pumped into the second sea intake 34 by pipeline by sea-water pump, seawater enters the second seawater cavity by the second sea intake 34, when liquid level in second seawater cavity is more than the second evaporation side seawater inlet 35, seawater enters the second evaporation of seawater cavity by the second evaporation side seawater inlet, second steam cavity and the second sea water desaltination cavity interval are arranged, steam in second steam cavity passes to the seawater in the second evaporation of seawater cavity by the second plate 31 heat, realize the second evaporation of seawater cavity inland sea evaporation of water, the steam part that evaporation is formed carries out condensation by the second partition in the second housing, another part delivers to lower 1st effective evaporator by the 3rd opening of the second housing lower end,
Principle of work and the 2nd effect evaporator of triple-effect evaporator are similar, specific as follows:
The water vapour part that second evaporation of seawater chamber of 2nd effect evaporator produces passes through dividing plate condensation, remaining part is sent by the 3rd opening of the second housing, upper end the 4th open communication of the 3rd housing of the 3rd opening and triple-effect evaporator 4, the steam ejector 6 be communicated with the 3rd housing makes to form negative pressure in the 3rd housing, steam in second housing enters the 3rd housing by the 3rd opening by the 4th opening under the effect of negative pressure, condensation can be there is in some vapor on the 3rd cold plate, the steam of condensation is not had to enter the second steam cavity by the Secondary Heat Source import 32 of the second plate-type heat exchanger, seawater is pumped into the second sea intake 34 by pipeline by sea-water pump, seawater enters the second seawater cavity by the second sea intake 34, when liquid level in second seawater cavity is more than the second evaporation side seawater inlet 35, seawater enters the second evaporation of seawater cavity by the second evaporation side seawater inlet, second steam cavity and the second sea water desaltination cavity interval are arranged, steam in second steam cavity passes to the seawater in the second evaporation of seawater cavity by the second plate 31 heat, realize the second evaporation of seawater cavity inland sea evaporation of water, the steam part that evaporation is formed carries out condensation by the 3rd dividing plate in the 3rd housing, another part delivers to extraneous or lower 1st effective evaporator by the 5th opening of the 3rd housing lower end,
The top and bottom of the second housing and the 3rd housing are separated by the effect arranging the first dividing plate and second partition in the second housing of 2nd effect evaporator 3 and the 3rd housing of triple-effect evaporator 4 respectively, for the second housing, the steam that 1st effective evaporator produces enters the upper end of the second housing by the second opening of the second housing, the steam of the second housing upper end is used for evaporating the seawater in 2nd effect evaporator, the steam of the second housing lower end is the steam that 2nd effect evaporator produces, the vapor temperature that temperature produces compared with 1st effective evaporator is low, it is used for as lower 1st effective evaporator provides thermal source, there is interference and even mix in the evaporation in order to avoid the second upper and lower two ends of housing, the two ends up and down of the second housing are separated by the first dividing plate.In 3rd housing, the setting principle of second partition is identical with the principle arranging the first dividing plate in the second housing.
In the working process of 2nd effect evaporator and triple-effect evaporator, steam moves from top to bottom, the mode of motion of seawater is also from top to bottom, seawater can be evenly distributed on the sidewall of evaporation of seawater cavity, namely by the lower thickness of evaporation seawater, thus improve the vaporator rate of evaporation of seawater chamber maritime interior waters.
It is as far as possible little that the area of the first seawater cavity and the second seawater cavity should design, thus reduce the seawater amount remained in after sea water desaltination terminates in the first plate-type heat exchanger and the second plate-type heat exchanger.
In order to optimize technique scheme further, at the second opening and the 4th opening part, filtering net is set, to improve the purity of the water of condensation of acquisition.
Multiple first thermal source import 22 is combined to form heat source stream circulation passage, and heat source stream circulation passage and the first evaporation of seawater cavity can effectively be separated by the setting of the 5th sealing-ring; Multiple first thermal source outlet 23 and the 3rd steam cavity are combined to form thermal source flow pass, and the 3rd vapor chamber body can play to thermal source the effect temporarily stored; Multiple first sea intake 24 and the first seawater cavity are combined to form seawater circulation passage, and the first seawater cavity plays the effect temporarily stored to seawater;
Multiple Secondary Heat Source import 32 is combined to form heat source stream circulation passage, and heat source stream circulation passage and the second evaporation of seawater cavity can effectively be separated by the setting of the tenth sealing-ring; Multiple Secondary Heat Source outlet 33 and the 4th steam cavity are combined to form thermal source flow pass, and the 4th vapor chamber body can play to thermal source the effect temporarily stored; Multiple second sea intake 34 and the second seawater cavity are combined to form seawater circulation passage, and the second seawater cavity plays the effect temporarily stored to seawater.
Water collector can be distributed the steam produced by corresponding vaporizer, to balance the pressure in sea water desalinating plant.
Two media countercurrent flow in plate-type heat exchanger, and plate-type heat exchanger is high relative to tubular heat exchanger heat exchange efficiency, can the end temperature difference of accomplishing about 1 DEG C of very economical, the volume of interchanger can be effectively reduced relative to tubular heat exchanger, thus reduce the floor space of sea water desaltination multi-effect evaporation system.
Steam in plate-type heat exchanger and seawater are in the both sides convection current of plate 1, and the flow state of fluid is rotating turbulence, is not easy to cause structure, can reduce cleaning frequency relative to tubular heat exchanger;
In the cleaning and maintenance process of plate-type heat exchanger, as long as plate 1 is dismantled, can monolithic plate 1 be cleaned and be keeped in repair, the difficulty of cleaning and maintenance can be reduced relative to tubular heat exchanger;
Plate-type heat exchanger is high relative to the heat exchange efficiency of tubular heat exchanger, thus improves the working efficiency of sea water desaltination multi-effect evaporation system to a certain extent;
Little and the plate-type heat exchanger compact construction of the volume of plate-type heat exchanger, thus the volume of interchanger can be reduced, also just can reduce the volume of sea water desaltination multi-effect evaporation system.
The plate-type heat exchanger that this programme adopts is relative to plate-type heat exchanger of the prior art, plate-type heat exchanger arranges three holes, the plate-type heat exchanger technique being provided with four holes of the prior art is simple, reduce the hand labor intensity of workman's perforate to a certain extent, on the other hand, the number in hole has been lacked, thus increases the heat interchanging area of plate-type heat exchanger, improve the heat exchange efficiency of plate-type heat exchanger to a certain extent, improve the utilization ratio of material.
In order to give, effect evaporation provides the steam more crossed, at least two group first plate-type heat exchangers are provided with in 1st effective evaporator 2, the quantity of steam produced due to one group of first plate-type heat exchanger is limited, in order to meet the thermal source demand of follow-up plate-type heat exchanger, need in 1st effective evaporator, arrange many groups the first plate-type heat exchanger, thus carrying out smoothly of the sea water desaltination work of subsequent evaporation device can be ensured.The number of the first plate-type heat exchanger preferably three groups, three group of first plate-type heat exchanger is arranged successively along the length direction of the first housing.
First front end-plate of first group of first plate-type heat exchanger is connected with the first retaining plate, first retaining plate is fixed on the first housing, first back head of the second plate-type heat exchanger is connected with the second retaining plate, second retaining plate is fixed on the first housing, first retaining plate is relative with the connection side of the second retaining plate and the first housing with the connection side of the first housing, and second group of first plate-type heat exchanger is identical with the fixed form of the first plate-type heat exchanger with the fixed form of the 3rd group of the first plate-type heat exchanger.
The number of the second plate-type heat exchanger in 2nd effect evaporator and triple-effect evaporator is one group, the arranged direction of the second plate-type heat exchanger is parallel with the length direction of the 3rd housing with the second housing, first back up pad of the second plate-type heat exchanger upper end is connected with the second housing by the 3rd retaining plate, second back up pad of the second plate-type heat exchanger lower end is connected with the second housing by the 4th retaining plate, 3rd retaining plate is relative with the connection side of the 4th retaining plate and the second housing with the connection side of the second housing, 3rd retaining plate and the 4th retaining plate can not cause interference to the flowing of steam.
Subsequent processing is delivered to after water vapour in triple-effect evaporator and water collector carries out condensation by condenser.
In order to optimize technique scheme further, in a specific embodiment of the present invention, also comprise quadruple effect evaporator 5, quadruple effect evaporator 5 comprises the 4th housing and is arranged on the second plate-type heat exchanger in the 4th housing, the 3rd dividing plate for being separated at the two ends up and down of the 4th housing is provided with in described 4th housing, the upper end of the 4th housing is provided with the 6th opening with the 5th open communication, the lower end of described 4th housing is provided with the 7th mouthful that is in communication with the outside, top in 4th housing is provided with the 4th cold plate, quadruple effect evaporator 5 is all communicated with steam ejector 6 with condenser sea-water pump, the principle of work of quadruple effect evaporator is identical with triple-effect evaporator with 2nd effect evaporator.
In order to reduce the impurity after sea water desaltination in water, the water outlet end of sea-water pump being provided with strainer, seawater is tentatively filtered.
In order to optimize technique scheme further, in a specific embodiment of the present invention, first thermal source import 22 of the first plate-type heat exchanger is positioned at the mid-way, top of the first plate, first thermal source outlet 23 and the first sea intake 24 are all positioned at the lower end of the first plate 21 and are positioned at the both sides of the first thermal source import 22, first evaporation side seawater inlet 25 is positioned at the first sea intake 24, it is as far as possible large that distance between first thermal source outlet 23 and the first sea intake 24 should design, thus avoid causing interference to the installation of sealing-ring;
The Secondary Heat Source outlet 33 of the second plate-type heat exchanger is positioned at the mid-way, lower end of the second plate 31, Secondary Heat Source import 32 and the second sea intake 34 are positioned at the upper end of the second plate 31 and are positioned at the two ends that Secondary Heat Source exports 33, second evaporation side seawater inlet 35 is positioned at the lower end of the second sea intake 34 near the position of the second sheet edges, it is as far as possible large that distance between Secondary Heat Source import 32 and the second sea intake 34 should design, and avoids the installation affecting sealing-ring.
The conveniently installation and removal of the first plate 21 and the second plate 31, first plate 21 is all connected by push bolt with the second plate 31, example is installed as: then the first front end-plate, the first plate 21 are connected by push bolt with the first back head with the first plate-type heat exchanger, ensure after the first front end-plate, the first plate 21 and the first back head compress, fit completely between sealing-ring positioned opposite, thus ensure that interchanger normally works.
In order to optimize technique scheme further, in a specific embodiment of the present invention, first plate 21 and the second plate 31 are titanium plate, first plate 21 and the second plate 31 adopt extremely accurate mould one time punching molded, titanium plate relative mass is comparatively light, can reduce the hand labor intensity of workers carry; Titanium plate does not need to smear separating agent in the process used, thus logical electrolytic solution can be avoided the pollution of fresh water.First plate 21 and the second plate 31 also can be the plate of stainless material, or the plate of titanium palladium material or be alloy plate or for copper coin sheet.
Preferably, first plate 21 and the second plate 31 are suppressed with ripple, namely the first plate 21 and the second plate 31 are waved plate, ripple not only can enhancement of heat transfer, can increase thin plate and rigidity simultaneously, improve the bearing capacity of plate-type heat exchanger, and the formation of throw out or dirt can be reduced, play certain self-cleaning effect, thus reduce the number of times of cleaning.
In order to ensure the stopping property of steam cavity, seawater cavity and evaporation of seawater cavity, first sealing-ring, the second sealing-ring, the 3rd sealing-ring, the 4th sealing-ring, the 5th sealing-ring, the 6th sealing-ring, the 7th sealing-ring, the 8th sealing-ring the 9th sealing-ring and the tenth sealing-ring are rubber seal, and rubber has the advantages such as elasticity, waterproof and aeriality.
The openings of sizes of the evaporation side seawater inlet of the plate-type heat exchanger that this programme provides determines according to steam output, when larger by the seawater amount of steam raising in the unit time, then the size of the first evaporation side seawater inlet 25 and the second evaporation side seawater inlet 35 is larger, when less by the seawater amount of steam raising in the unit time, then the size of the first evaporation side seawater inlet 25 and the second evaporation side seawater inlet 35 is less, preferably, the size control of the first evaporation side seawater inlet 25 and the second evaporation side seawater inlet 35 is at diameter 6-8mm, concrete size is determined according to the need of production of reality.When the evaporation of seawater amount hour in the unit time, the diameter of the first evaporation side seawater inlet 25 and the second evaporation side seawater inlet 35 is 6mm, when the evaporation of seawater amount in the unit time is large, the diameter of the first evaporation side seawater inlet 25 and the second evaporation side seawater inlet 35 is 8mm.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a sea water desalinating plant, is characterized in that, comprising:
Well heater (1), the inlet end input steam of described well heater (1);
The 1st effective evaporator (2) be communicated with described well heater (1), the water outlet of described 1st effective evaporator (2) is in communication with the outside, described 1st effective evaporator (2) comprises the first housing and is arranged on the first plate-type heat exchanger in described first housing, the side of described first housing is provided with the first opening, and the top of described first housing is provided with the first cold plate;
2nd effect evaporator (3), described 2nd effect evaporator (3) comprises the second housing and is arranged on the second plate-type heat exchanger in described second housing, the first dividing plate for being separated at the two ends up and down of described second housing is provided with in described second housing, the upper end of described second housing is provided with the second opening with described first open communication, the lower end of described second housing is arranged imitates with next the 3rd opening be communicated with, and the top of described second housing is provided with the second cold plate;
Triple-effect evaporator (4), described triple-effect evaporator (4) comprises the 3rd housing and is arranged on described second plate-type heat exchanger in described 3rd housing, the second partition for being separated at the two ends up and down of described 3rd housing is provided with in described 3rd housing, the upper end of described 3rd housing is provided with the 4th opening with described 3rd open communication, the lower end of described 3rd housing be provided be in communication with the outside or next effect be communicated with the 5th opening, the top of described 3rd housing is provided with the 3rd cold plate;
The steam ejector (6) be all communicated with described 3rd housing with described second housing;
The water collector be communicated with described triple-effect evaporator (4) with described 2nd effect evaporator (3);
The condenser be connected with described 1st effective evaporator (2), described 2nd effect evaporator (3) and described triple-effect evaporator (4);
It can be the sea-water pump that described 1st effective evaporator (2), 2nd effect evaporator (3) and described triple-effect evaporator (4) provide seawater;
Described first plate-type heat exchanger comprises the first front end-plate, the first back head be arranged in parallel with described first front end-plate, to be arranged between described first front end-plate and described first back head and the first plate (21) be arranged in parallel with described first front end-plate and the two ends up and down that are arranged on described first plate (21) can support the first back up pad of described first plate (21), the upper end of described first plate (21) is provided with the first thermal source import (22) for entering for steam, the lower end of described first plate (21) is provided with the first thermal source outlet (23) for flowing out for described steam, the first sea intake (24) entered for supplying seawater and the first evaporation side seawater inlet (25), the side of described first plate (21) arranges the first sealing-ring and the second sealing-ring, described first thermal source import (22) and described first thermal source outlet (23) are arranged in the space that described first sealing-ring encloses, described first sea intake (24) and described first evaporation side seawater inlet (25) are positioned at the space that described second sealing-ring encloses, the opposite side of described first plate (21) is provided with the 3rd sealing-ring, 4th sealing-ring and the 5th sealing-ring, described 3rd sealing-ring is opening towards one end of described first thermal source import (22), described first sea intake (24) and described first evaporation side seawater inlet (25) are positioned at the space that described 3rd sealing-ring encloses, described first thermal source import (22) is positioned at the space that described 5th sealing-ring encloses, described first thermal source outlet (23) is positioned at the space that described 4th sealing-ring encloses, adjacent described first plate (21) be provided with described first sealing-ring and described second sealing-ring side coordinate or adjacent described first plate (21) be provided with described 3rd sealing-ring, the side of described 4th sealing-ring and described 5th sealing-ring coordinates,
Described second plate-type heat exchanger comprises the second front end-plate, the second back head be arranged in parallel with described second front end-plate, to be arranged between described second front end-plate and described second back head and the second plate (31) be arranged in parallel with described second front end-plate and the two ends up and down that are arranged on described second plate (31) can support the second back up pad of described second plate (31), the upper end of described second plate (31) is provided with the Secondary Heat Source import (32) for entering for seawater, second sea intake (34) and the second evaporation side seawater inlet (35), the lower end of described second plate (31) is provided with Secondary Heat Source outlet (33), the side of described second plate (31) is provided with the 6th sealing-ring and the 7th sealing-ring, described Secondary Heat Source import (32) and described Secondary Heat Source outlet (33) are positioned at the space that described 6th sealing-ring encloses, described second sea intake (34) and described second evaporation side seawater inlet (35) are positioned at the space that described 7th sealing-ring encloses, the opposite side of described second plate (31) is provided with the 8th sealing-ring, 9th sealing-ring and the tenth sealing-ring, the side that described 8th sealing-ring exports (33) towards described Secondary Heat Source is provided with opening, described second sea intake (34) and described second evaporation side seawater inlet (35) are positioned at the space that described 8th sealing-ring encloses, described Secondary Heat Source import (32) is positioned at the space that described 9th sealing-ring encloses, described Secondary Heat Source outlet (33) is positioned at the space that described tenth sealing-ring encloses, adjacent described second plate (31) be provided with the 6th sealing-ring and the 7th sealing-ring side coordinate or adjacent described second plate (31) be provided with the 8th sealing-ring, the side of the 9th sealing-ring and the tenth sealing-ring coordinates.
2. sea water desalinating plant according to claim 1, is characterized in that, is provided with at least two group first plate-type heat exchangers in described 1st effective evaporator (2).
3. sea water desalinating plant according to claim 1, it is characterized in that, also comprise quadruple effect evaporator (5), described quadruple effect evaporator (5) comprises the 4th housing and is arranged on described second plate-type heat exchanger in described 4th housing, the 3rd dividing plate for being separated at the two ends up and down of described 4th housing is provided with in described 4th housing, the upper end of described 4th housing is provided with the 6th opening with described 5th open communication, the lower end of described 4th housing is provided with the 7th opening be in communication with the outside, top in described 4th housing is provided with the 4th cold plate, described quadruple effect evaporator (5) and described condenser, described sea-water pump is all communicated with described steam ejector (6).
4. sea water desalinating plant according to claim 1, is characterized in that, the water outlet end of described sea-water pump is provided with strainer.
5. sea water desalinating plant according to claim 1, it is characterized in that, the described first thermal source import (22) of the first plate-type heat exchanger is positioned at the mid-way, top of plate described in first, and described first thermal source outlet (23) and described first sea intake (24) are all positioned at the lower end of described first plate (21) and are positioned at the both sides of described first thermal source import (22);
Described Secondary Heat Source outlet (33) of the second plate-type heat exchanger is positioned at the mid-way, lower end of described second plate (31), and described Secondary Heat Source import (32) and described second sea intake (34) are positioned at the upper end of described second plate (31) and are positioned at the two ends that described Secondary Heat Source exports (33).
6. sea water desalinating plant according to claim 1, is characterized in that, described first plate (21) is all connected by push bolt with described second plate (31).
7. sea water desalinating plant according to claim 1, is characterized in that, described first plate (21) and described second plate (31) are titanium plate.
8. sea water desalinating plant according to claim 1, is characterized in that, described first plate (21) and described second plate (31) are waved plate.
9. sea water desalinating plant according to claim 1, it is characterized in that, described first sealing-ring, described second sealing-ring, described 3rd sealing-ring, described 4th sealing-ring, the 5th sealing-ring, the 6th sealing-ring, the 7th sealing-ring, the 8th sealing-ring, the 9th sealing-ring and the tenth sealing-ring are rubber seal.
10. sea water desalinating plant according to claim 1, is characterized in that, the diameter of described first evaporation side seawater inlet (25) and described second evaporation side seawater inlet (35) is 6-8mm.
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Denomination of invention: A seawater desalination device Granted publication date: 20170322 Pledgee: Industrial and Commercial Bank of China Limited Siping Branch Pledgor: Siping Juyuan Hanyang Plate Heat Exchanger Co.,Ltd. Registration number: Y2024220000008 |
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