CN101061070A - A heat exchanger plant for evaporation - Google Patents
A heat exchanger plant for evaporation Download PDFInfo
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- CN101061070A CN101061070A CNA2005800393654A CN200580039365A CN101061070A CN 101061070 A CN101061070 A CN 101061070A CN A2005800393654 A CNA2005800393654 A CN A2005800393654A CN 200580039365 A CN200580039365 A CN 200580039365A CN 101061070 A CN101061070 A CN 101061070A
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- Prior art keywords
- heat exchanger
- exchanger stage
- liquid
- sheet separation
- processing line
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
- B01D3/065—Multiple-effect flash distillation (more than two traps)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0015—Plates
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
A heat exchanger plant for distillation comprises at least two parallel process lines (1) with at least two successive heat exchanger stages (2a, 2b) , which each comprises a plate package of heat exchanger plates provided in such a way that first plate interspaces for condensation and second plate interspaces for evaporation are formed. The heat exchanger stages form rows (8) with heat exchanger stages which lie after each other and transversely to the process lines. Each heat exchanger stage is adapted to perform condensation of steam and evaporation of a liquid, wherein they are supplied with steam to the first plate interspaces and a liquid to the second plate interspaces. The supplied steam is condensed to a liquid and the supplied liquid is evaporated and supplied to the first plate interspaces in the next heat exchanger stage for evaporation of a liquid supplied to the second plate interspaces in this next heat exchanger stage. The plant comprises a closed casing (10) , which encloses an inner space (11) in which the process lines are provided. The casing has, seen in a cross-section transversely to the process lines, a rectangular shape.
Description
The technology of the present invention field
The present invention relates generally to the heat exchanger device (plant) that is used for distillation.Particularly, the present invention relates to be used for the heat exchanger device of sea water desaltination.More specifically, relate to the heat exchanger device that is used for distillation, it comprises at least one processing line (process line), be provided with at least two successive heat exchangers levels, the plate group (plate package) that comprises heat exchanger plate separately, heat exchanger plate is formed for first sheet separation of condensation and second sheet separation that is used to evaporate in the plate group, wherein each heat exchanger stage can be carried out vapor condensation and liquid evaporation, first heat exchanger stage be suitable for supplying steam to first sheet separation and the supply liquid to second sheet separation, vapor supplied is condensed into liquid, the liquid evaporation of supply also is provided to first sheet separation of next heat exchanger stage, make the liquid evaporation of second sheet separation that is provided to next heat exchanger stage, wherein equipment comprises the housing of sealing, and housing impales the internal space, wherein is provided with the processing line that has heat exchanger stage.
Background technology
The applicant has produced sea water desalting equipment for many years, and the plate group of heat exchanger plate forms the major portion of this technology.Plate is not provided with the steam port, just the plate group is positioned in the container, and the outer space of plate is used as one or more steam flow channels, and this depends on technology type.Main equipment uses cylindrical pressure vessel, and the plate group is along cylindrical longitudinal register.Main equipment has 5 even 6 plate groups usually.
This technology all is lower than under the pressure of barometric point throughout carries out in a plurality of so-called effects districts (effect), steam is transferred to the second effect district from first effect district with top pressure and temperature, in the second effect district, steam carries out condensation in the sheet separation that is used for condensation.The heat that produces makes the evaporation of seawater in the intermediate space that is used for condensation, and the steam that is produced is transferred to next effect district.This process repeats in other effect district, carries out condensation at last in condenser, and the heat-eliminating medium of condenser is a water.Each effect district is provided with a plate group at least, and the plate quantity of palette group should not surpass 1000 to 1200, so if require more plate, in each effect district two parallel plate groups should be set.
If wish bigger capacity, can build equipment with a plurality of cylindrical vessels.It is uneconomic in a cylindrical vessel three parallel plate groups being set.Diameter must be fit to three one to be compared with the container that can place three plate groups near one plate group, and it is about 50% that diameter will increase, this means that material thickness can increase by 50%, and the material total quantity increases above 100%.The sectional area increase much is favourable, because steam velocity is reduced, but economical effectiveness is little.Therefore believable estimation can not provide the reduction of special cost.
U.S. Pat-A-4,511,436 disclose a kind of equipment of sea water desaltination.This equipment comprises processing line, it is provided with a plurality of successive heat exchangers levels, heat exchanger stage comprises the plate group of heat exchanger plate separately, and plate is in welded together, and heat exchanger plate is formed for first gap of condensation and second gap that is used to evaporate in the plate group.The processing line extend perpendicular of heat exchanger plate, wherein the first step is positioned at the top.Be parallel to this vertical process line and be provided with vertical heat exchanger line the seawater preheating of desalinating.Two lines are arranged in the pressurized vessel of sealing, and it schematically is disclosed in this specification sheets.As for the structure design of housing, at U.S. Pat-A-4, mention parallel application in 511,436, this mode is at U.S. Pat-A-4, and is open in 514,260.
U.S. Pat-A-4,514,260 disclose a kind of similar equipment, are provided with the plate group of a plurality of arranged verticals, and highly roughly width and the length than horizontal plane is big for it.The plate group is closed in the housing.This housing has two vertically opposite planar side and two vertically opposite outwardly-bent sides.
Summary of the invention
The purpose of this invention is to provide a kind of heat exchanger device, it has very large capacity, can cost-effective mode make easily and install.Another object of the present invention provides a kind of heat exchanger device, and its structure can make equipment big and comprise a plurality of heat exchanger stage.
Purpose of the present invention realizes by the heat exchanger device of initial definition, it is characterized in that, comprise at least two processing lines, it is provided with the successive heat exchanger stage, described processing line is extended in the internal space in parallel to each other, and wherein heat exchanger stage forms row, and heat exchanger stage one by one, and in the enclosure interior space transverse to described processing line, the cross section transverse to described processing line of housing is a rectangle.
Each row that comprises the heat exchanger stage of plate group forms so-called equipment effect district.Because used the rectangular closed housing, rather than traditional cylindrical vessel, cost can greatly reduce.Hull shape better mode is suitable for by the formed profile transverse to described line of the row of equipment heat exchanger stage.Pressurized vessel generally is cylindrical, is optimum shape because of consider this from intensity, therefore has minimum material.If the outside excess pressure of pressure bearing, this reason is invalid, because structure can collapse because of unstability.For cylindrical vessel, little ovality can cause local bending stress, and the distortion that is produced causes bigger stress in bending, finally causes integral body to collapse.Therefore, compare with the container that just bears corresponding internal over pressure power, the shape of bearing the pressurized vessel of outside excess pressure must be very firm.This is very important under the situation of vacuum vessel, if the size of container just designs at film pressure, so because the low material thickness that only need be very little of pressure, such material thickness will obtain the anti-security of collapsing and collapsing, and panel stiffness is low excessively.In order to increase material thickness, housing is provided with strengthening ring, however, still needs to be provided with the thickness bigger 4,5 times than the thickness of the cylindrical vessel that bears internal over pressure power with exceeding.Because desalting plant moves under very big vacuum tightness, above-mentioned explanation is authentic and valid.Compare with square container, cylindrical vessel does not produce a lot of material economy, and many more parallel plate groups are positioned in the container, material economy few more.Should know that material only accounts for the sub-fraction of final container cost, can not guarantee that the structure with minimal material has minimum cost.For the macroeconomic several factors great effect is arranged.
According to a preferred embodiment of the invention, this equipment comprises at least three parallel like this processing lines, and it is provided with the successive heat exchangers level.Each row comprises three mutually near the heat exchanger stage that is provided with, the effect district (effect) of common forming device.In addition, equipment preferably includes at least four parallel processing lines, and it is provided with the successive heat exchanger stage.The orthogonal advantage is that equipment is big more, and the parallel process line that equipment comprises is many more.
According to still another embodiment of the invention, each heat exchanger stage is designed to module, comprises the housing of part separately, is suitable for according to being fluidly coupled to the front of same processing line and at least one in the follow-up module.For main equipment, importantly transportation is wanted and can be carried out in simple mode, and client's work reduces to minimum, only should reduce to carry out installation work.All qualified manufacturing work should be located to take place supplier or its subcontractor.Therefore, rectangular case is favourable, because it can be divided into two modules by mode easily, module can be made in factory by reasonable manner, is transported to the fabricating yard in relatively easy mode then.
According to still another embodiment of the invention, each module can be designed to inner module, and it is fit to be arranged between two adjacent blocks with delegation; Or being designed to outer module, it is fit to be arranged to only near an adjacent block with delegation.According to the viewpoint of design, this is two modules.Outer module can be in right design attitude and left design attitude, because can be symmetrical fully, only form the individual module structure.Each module advantageously is suitable for according at least one adjacent block that is fluidly coupled to delegation.In addition, the described housing parts of each module is suitable for being mechanically connected to at least one adjacent block of delegation and is connected to the front of same processing line and at least one in the follow-up module.
According to still another embodiment of the invention, each processing line comprises at least three such successive heat exchangers levels, wherein be provided to first sheet separation of the 3rd heat exchanger stage, make the liquid evaporation of second sheet separation that is fed to the 3rd heat exchanger stage at the partially liq at least of second heat exchanger stage evaporation.In addition, each processing line preferably includes at least four such successive heat exchangers levels, wherein be provided to first sheet separation of the 4th heat exchanger stage, make the liquid evaporation of second sheet separation that is fed to the 4th heat exchanger stage at the partially liq at least of the 3rd heat exchanger stage evaporation.Each processing line can comprise how such successive heat exchanger stage certainly, for example, and five, six, seven, eight, nine or more.
According to still another embodiment of the invention, spatial pressure kept roughly being lower than the pressure of housing outside environment in this housing was designed to allow.
According to still another embodiment of the invention, this equipment design becomes to have the capable approximate horizontal extension of heat exchanger stage.
According to still another embodiment of the invention, this equipment design becomes the processing line approximate horizontal to extend.
According to still another embodiment of the invention, this equipment design becomes the processing line approximate vertical to extend.For very large equipment, if the plate group is positioned a plurality of planar multirows, the cost of housing can further reduce.By such design, it is minimum that the floorage of outside surface and requirement can be reduced to.
According to still another embodiment of the invention, gasket seal is passed through in first sheet separation of plate group and second sheet separation.By such mode, the plate group can be opened so that clean and repair.
According to still another embodiment of the invention, each processing line is provided with liquid trap, and it roughly is connected to each heat exchanger stage.
According to still another embodiment of the invention, equipment comprises thermocompressor, be suitable for by the operation of high voltage external steam is provided, and be suitable for accepting that heat exchanger stage at least in the end produces to small part steam, mix this part steam and external steam, mixture forms the described steam that is provided to first heat exchanger stage.
Description of drawings
Now, the present invention is carried out properer explanation by and with reference to the accompanying drawings to the introduction of each embodiment.
Fig. 1 discloses the sectional view of looking from the side according to the heat exchanger device of the first embodiment of the present invention;
Fig. 2 discloses the sectional view that Fig. 1 equipment is looked from above;
Fig. 3 discloses the side-view of the heat exchanger stage of Fig. 1 equipment;
Fig. 4 discloses the sectional view that the IV-IV along the line of Fig. 1 equipment looks;
Fig. 5 discloses the view of the first outer module of the heat exchanger device of Fig. 1;
Fig. 6 discloses the view of inner module of the heat exchanger device of Fig. 1;
Fig. 7 discloses the view of the second outer module of the heat exchanger device of Fig. 1;
Fig. 8 discloses the side-view of the heat exchanger device of Fig. 1;
Fig. 9 discloses first sectional view that heat exchanger device is according to a second embodiment of the present invention looked from the side;
Figure 10 discloses second sectional view that the heat exchanger device X-X along the line of Fig. 9 looks.
Embodiment
Fig. 1 discloses to Fig. 4 and has been used for the distillatory heat exchanger device, in particular for the heat exchanger device of sea water desaltination.Disclosed heat exchanger device comprises four processing lines 1.Each processing line 1 comprises 5 successive heat exchanger stage 2a-2e along the longitudinal extension of equipment, comprises the plate group 3 of heat exchanger plate 4 separately, and heat exchanger plate 4 forms first sheet separation 5 and second sheet separation 6 in plate group 3.The extension that is parallel to each other of four processing lines 1, heat exchanger stage 2a-2e forms the row 8 of heat exchanger stage 2a-2e, heat exchanger stage 2a, 2b, 2c, each row of 2d forms so-called effect district respectively.
These row 8 and extend at the horizontal direction of equipment one by one, promptly extend transverse to processing line 1.Row 8 is approximately perpendicular to parallel vertical processing line 1 in the embodiment shown and extends.Should be noted that the row 8 and the processing line 1 that can comprise and disclose other number of different amts according to the equipment of optional design.
Equipment comprises the housing 10 of sealing, and it impales internal space 11, is provided with four processing lines 1 that have heat exchanger stage 2a-2e in the space.Housing 10 is designed to pressurized vessel, makes internal space 11 can keep than the roughly low pressure of housing 10 outside barometric points.Spaced walls 12 approximate horizontal ground in housing 10 extends, and internal space 11 is divided into roughly two vertical half ones, and in addition, different heat exchanger stage 2a-2d is separated from each other by vertical wall 18,18 '.Wall 12,18,18 ' therefore forms a plurality of upper spaces 13 and a plurality of lower space 14, can be with reference to figure 3.Each plate group 3 is arranged to extend through partition wall 12, and wherein the top of plate group 3 is positioned at upper space 13, and the bottom of plate group 3 is positioned at lower space 14.
Fig. 3 discloses in the plate group 3 in more detail, and it can comprise a lot of heat exchanger plates 4, as 500 to 1500.Each plate group 3 can be by keeping together as 4 joint bolt (not shown)s, and bolt extends through the frame plate and the pressure plate (not shown) of each plate group 3.In each sheet separation 5 and 6 of plate group 3, be respectively equipped with pad 15,15 ' with sealing plate gap 5 and 6.More specifically, pad 15 makes first sheet separation 5 that is used for condensation be sealed in each lower space 14, and pad 15 ' makes second sheet separation 6 that is used to evaporate be sealed in each upper space 13, as shown in Figure 3.
This external equipment comprises the passage that passes spaced walls 12 between each heat exchanger stage 2a-2b, 2b-2c, 2c-2d and the 2d-2e.Basically each passage is provided with liquid trap 16a-16d.
This equipment also comprises thermocompressor 20, and the external high pressure steam effect operation down that provides by known way is provided.Outside steam is provided to thermocompressor 20 by supply line 21.Thermocompressor 20 provides the steam of tool pressure and temperature to the first heat exchanger stage 2a by entrance pipe 22.This pressure and temperature is corresponding to the pressure and temperature of the first heat exchanger stage 2a, but barometric point and surrounding temperature around being lower than separately.Continue to descend at follow-up heat exchanger stage 2b-2e pressure and temperature then.From one or more last heat exchanger stage, be penultimate heat exchanger stage 2d in this example, the discharge section steam turns back to thermocompressor 20 by pipeline 23.Thermocompressor 20 comprises nozzle, is used to utilize outside steam to make the steam that returns be recycled to entrance pipe 22.
Carrying out distillatory liquid, is salt-containing liquid in this example, can be called salt solution, by schematic disclosed transfer line 30 inputs.Transfer line 30 can be disclosed more complicated than Fig. 1, is used to provide the salt-containing liquid of tool certain temperature, and this temperature is fit to the temperature of 2a-2d at different levels.Salt-containing liquid is fed to second sheet separation 6 of each plate group 3 of four first heat exchanger stage 2a-2d by the port channel 31 of transfer line 30 and each plate group 3, can be with reference to figure 4.The liquid that provides evaporates by the steam-heated cal(l)andria of the first adjacent sheet separation 5 and to small part.The steam of first sheet separation 5 condensation and two port channels 34 of each the plate group by as shown in Figure 4 and the discharge pipe 35 of following further introduction is then discharged with liquid.Should be noted that at Fig. 1 in 4 the disclosed embodiments, last heat exchanger stage 2e is pure condensation stage, is used for the steam of condensation front heat exchanger stage 2d.Condensation product can utilize round-robin exterior cooling medium to provide by the proper port passage of circulation line 32 and each plate group 3 of last heat exchanger stage 2d.Exterior cooling medium to small part can be provided to different heat exchanger stage 2a-2d by transfer line 30.Heat exchanger stage 2e is used for the preheating salt-containing liquid then, with reference to figure 1.
Therefore heat exchanger stage 2a-2e is suitable for making the vapour condensation in first sheet separation 5.In addition, each heat exchanger stage 2a-2d except last heat exchanger stage 2e, is suitable for making the liquid evaporation in second sheet separation 6.More specifically, by access road 22 and upper space 13, steam is provided to first sheet separation 5 of the first heat exchanger stage 2a.Salt-containing liquid is provided to second sheet separation 6 of the first heat exchanger stage 2a by transfer line 30.The vapour condensation of supply becomes liquid, discharges by port channel 34 and discharge pipe 35 from the first heat exchanger stage 2a.Whole liquid of getting rid of by discharge pipe from all heat exchanger stage 2a-2e have high purity, and salts contg is very low.The liquid of supply is in evaporation of lower space 14 parts and discharge.Steam is transferred to upper space 13 from lower space 14 by the first liquid trap 16a.Then not the evaporation and in the present embodiment the drop of disclosed salt-containing liquid be acquired and transmit back the bottom space 37 of lower space 14 bottoms as unnecessary liquid.Therefore disclosed in embodiments of the present invention bottom space 37 is suitable for comprising the unnecessary liquid that has salinity, is called salt solution.Should be noted that wetting for the heat-exchanger surface that guarantees first sheet separation 5, the salt-containing liquid of several times is provided and evaporates.
Be provided to first sheet separation 5 of the upper space 13 and the second heat exchanger stage 2b by the steam of the first liquid trap 16a, make the liquid evaporation that is provided to second sheet separation 6 of the second heat exchanger stage 2b by transfer line 30.Steam in first sheet separation, 5 condensations of the second heat exchanger stage 2b is discharged by the port channel 34 of plate group 3 and by discharge pipe 35.The liquid of supply is in lower space 14 evaporations and discharge.Steam is transferred to the upper space 13 of the 3rd heat exchanger stage 2c by the second liquid trap 16b from lower space 14.The liquid that contains salt in embodiments of the present invention is acquired then, and transmits back bottom space 37 as unnecessary liquid.
Steam supply by the second liquid trap 16b makes the liquid evaporation that is provided to second sheet separation 6 of the 3rd heat exchanger stage 2c by transfer line 30 to first sheet separation 5 of upper space 13 and the 3rd heat exchanger stage 2c.Steam in first sheet separation, 5 condensations of the 3rd heat exchanger stage 2c is discharged by the port channel 34 of plate group 3 and by discharge pipe 35.The liquid of supply is in lower space 14 evaporations and discharge.Steam passes through the upper space 13 of the 3rd liquid trap 16c transmission through the 4th heat exchanger stage 2d from lower space 14.The liquid that contains salt in embodiments of the present invention is acquired then, and transmits back bottom space 37 as unnecessary liquid.
Steam supply by the 3rd liquid trap 16c makes the liquid evaporation that is provided to second sheet separation 6 of the 4th heat exchanger stage 2e by transfer line 30 to first sheet separation 5 of upper space 13 and the 4th heat exchanger stage 2d.The steam of condensation is discharged by the port channel 34 of plate group 3 and by discharge pipe 35 in first sheet separation 5 of the 4th heat exchanger stage 2d.The liquid of supply is in lower space 14 evaporations and discharge.Steam is transferred to the upper space 13 of the 5th heat exchanger stage 2e by the 4th liquid trap 16d from lower space 14.The liquid that contains salt in embodiments of the present invention is acquired then, and transmits back bottom space 37 as unnecessary liquid.
The flow through upper space 13 of steam supply to the five heat exchanger stage 2e of the 4th liquid trap 16d.Part steam sucks thermocompressor 20, first sheet separation 5 of remaining steam supply to the five heat exchanger stage 2e from upper space by pipeline 23.Steam in first sheet separation, 5 condensations of the 5th heat exchanger stage 2e is discharged by discharge pipe 35.Should be noted that the 5th heat exchanger stage 2e that is fit to carry out last condensation can comprise the heat exchanger stage that is different from earlier stages 2a-2d of other type, for example have the plate group of other type plates or dissimilar heat exchanger fully, as the cast condenser.
One or several heat exchanger stage 2a-2d also can comprise preheater 40, is used for preheating is provided to first sheet separation 5 by transfer line 30 salt-containing liquid.This preheater 40 is schematically open in Fig. 1, by being provided to the steam preheating salt-containing liquid of heat exchanger stage 2c.
Should also be noted that to make heat exchanger stage 2a, 2b, the unnecessary liquid of at least a portion of 2c directly are transferred to from lower space 14 by flashing chamber 42 and are provided with heat exchanger stage 2b, 2c, and the lower space 14 of the next line 8 of 2d, as shown in Figure 3.Have heat exchanger stage 2a, 2b, the unnecessary liquid of the row 8 of 2c is transferred to flashing chamber 42 by one or several pipeline 41, the pressure of flashing chamber be provided with heat exchanger stage 2b, 2c, the pressure of the next line of 2d is identical.Because pressure reduces, the therefore evaporation of unnecessary liquid.Formed liquid one or several relatively large opening 43 by lower space is transferred to and is provided with heat exchanger stage 2b, 2c, the next line 8 of 2d.
With reference to sectional view shown in Figure 4, housing 10 has rectangular shape.Relative upper wall 51 and lower wall 52 are planar, and approximate horizontal is extended and roughly is parallel to each other.Relative sidewall 53,54th, planar is roughly vertical and roughly is parallel to each other.Equipment also is made up of a plurality of module 61-63, so that make in advance and install in the erecting stage of equipment easily in factory.Each module 61-63 comprises and the housing 10 of part in the plate group 3.Each module 61-63 is fit to according to being fluidly coupled to the front of same processing line 1 and at least one in the follow-up module.In addition, each module 61-63 is fit to according at least one the adjacent block 61-63 that is fluidly coupled to delegation 8.Steam flow can be transferred to next stage from a heat exchanger stage in the disclosed embodiment.But, this means that a steam flow in the processing line 1 can be diffused into the adjacent processing line 1 of continuous row 8 as not separating between the adjacent panels group in each row 8.
Each module 61-63 can be designed to inner module 61, and it is fit to be arranged between two adjacent blocks with delegation 8; Perhaps be designed to outer module 62-63, it is suitable for being separately positioned on near only adjacent block 61,63 of delegation 8 and 61,62.Inner module 61 is open in Fig. 6.Each outer module 62,63 can be designed to left module 62 or right module 63.Left side module 62 is open in Fig. 5, and right module 63 is open in Fig. 7.
The partial shell 10 of module 61-63 above-mentioned is fit to be mechanically connected to at least one adjacent block 61-63 of delegation 8 and is connected among same processing line 8 fronts and the follow-up module 61-63 at least one.According to one embodiment of present invention, mechanical connection can interconnect module 61-63 by welding joint and realize that promptly the housing 10 of each module 61-63 is welded to the housing 10 of adjacent block 61-63.
According to another embodiment, each inner module 61 comprises vertical vertically flange 70, is suitable for corresponding vertical vertically flange 70 butt joints with adjacent block 61-63.Module 61-63 can interconnect by suitable web member then, for example is threaded.Outer module 62-63 is different from inner module 61, because it has flange 70 in a side.In addition, each module 61-63 can comprise vertical transverse flange 71, is fit to dock with the corresponding vertical transverse flange 71 of the adjacent block 61-63 of same processing line 1.These flanges 71 show at Fig. 8.First and last module 61-63 of each processing line can be by top cover 73 sealings of suitably design.Longitudinally and the joint between the horizontal disparate modules 61-63 pad 74 can be set, as Fig. 5 and shown in Figure 7.
The flash tank 39 of disclosed this embodiment is positioned at the outside of housing 10, but also can be arranged on housing 10 inside.
Fig. 9 and Figure 10 schematically disclose heat exchanger device according to a second embodiment of the present invention.Element with roughly the same function has identical mark in two embodiment.According to second embodiment, the processing line 1 that is provided with successive heat exchangers level 2a-2g not longitudinally horizontal direction but longitudinally vertical direction extend.Have as the row 8 of plate group 3 as first embodiment level and extend transverse to vertical processing line 1.The width of last row 8 with the last heat exchanger stage 2g that is fit to carry out last condensation is in this embodiment greater than the width with respect to the front row 8 of heat exchanger stage 2a-2f.Disclosed heat exchanger stage 2g realizes by the cast condenser in Fig. 9 and Figure 10.Second embodiment is fit to very large equipment, and comprises three thermocompressors 20 that have three transfer lines 22.Housing 10 among this embodiment is similar to cubes, this means that the outer surface area of housing 10 minimizes.Compact structure also causes the pipeline distance very short.The floorage that requires is with to be provided with the desired floorage of the equipment that is horizontally disposed with processing line 1 little a lot.
The invention is not restricted to the disclosed embodiments, but changes and improvements within the scope of the appended claims.
Claims (16)
1. heat exchanger device that is used to evaporate, comprise at least one processing line (1), it has at least two successive heat exchanger stage (2a, 2b), the plate group (3) that it comprises heat exchanger plate (4) separately is provided with described heat exchanger plate (4) and makes first sheet separation (5) that is formed for condensation in the plate group and second sheet separation (6) that is used to evaporate;
Each heat exchanger stage (2a wherein, 2b) be suitable for carrying out vapor condensation and liquid evaporation, make the heat exchanger stage of winning (2a) be suitable for providing steam to first sheet separation (5), and provide liquid to second sheet separation (6), the vapor condensation that wherein provides becomes liquid, and the liquid evaporation that provides also is fed to first sheet separation (5) of next heat exchanger stage (2b), so that be provided to the evaporation of liquid of second sheet separation (6) in this next heat exchanger stage (2b); And
Wherein said equipment comprises the housing (10) of sealing, and it impales internal space (11), wherein provides to have heat exchanger stage (2a, described processing line (1) 2b);
It is characterized in that, described equipment comprise at least two have like this successive heat exchangers level (2a, processing line 2b) (1),
Described processing line (1) is extended in internal space (11) in parallel to each other, wherein said heat exchanger stage (2a, 2b) form the row (8) that has heat exchanger stage, described each heat exchanger stage is provided with in the internal space (11) in housing (10) one by one and transverse to described processing line (1); And
Described housing (10) has rectangular shape looking transverse to the cross section of described processing line (1).
2. equipment according to claim 1 is characterized in that, described equipment comprises at least three parallel like this successive heat exchangers level (2a, processing lines 2b) (1) of having.
3. equipment according to claim 1 is characterized in that, described equipment comprises at least four parallel like this successive heat exchangers level (2a, processing lines 2b) (1) of having.
4. according to each described equipment in the claim of front, it is characterized in that, each heat exchanger stage (2a, 2b) be designed to module (61-63), it comprises the part of housing (10) and is suitable for respect in front that is fluidly coupled to same processing line (1) and the follow-up module (61-63) at least one.
5. according to claim 2 or 4 described equipment, it is characterized in that, each module (61-63) is designed to inner module (61) or outer module (62,63), inner module is suitable for being arranged between two adjacent blocks of same delegation (8), and outer module is suitable for being arranged to an only adjacent block of close same delegation (8).
6. according to claim 4 or 5 described equipment, it is characterized in that each module (61-63) is suitable for respect at least one adjacent block that is fluidly coupled in the same delegation (8).
7. according to each described equipment in the claim 4 to 6, it is characterized in that the described part of the housing (10) of each module (61-63) is suitable for being mechanically connected at least one adjacent block in the same delegation (8) and is connected to front in the same processing line (1) and at least one in the follow-up module.
8. according to each described equipment in the claim of front, it is characterized in that, described each processing line (1) comprises at least three such successive heat exchangers levels (2a-2c), wherein in second heat exchanger stage (2b) evaporated liquid be fed to first sheet separation (5) of the 3rd heat exchanger stage (2c) to small part, with the evaporation of liquid of second sheet separation (6) that is used to be provided to the 3rd heat exchanger stage (2c).
9. equipment according to claim 8, it is characterized in that, each processing line (1) comprises at least four such successive heat exchangers level (2a, 2d), wherein the 3rd heat exchanger stage (2c) evaporated liquid be provided to first sheet separation (5) of the 4th heat exchanger stage (2d) to small part, with the evaporation of liquid of second sheet separation (6) that is used to be provided to the 4th heat exchanger stage (2d).
10. according to each described equipment in the claim of front, it is characterized in that, design described housing (10) to allow the keeping pressure in interior pressure ratio housing (10) the outside environment in interior space (11,13,14) roughly lower.
11., it is characterized in that described equipment design makes described row (8) the approximate horizontal ground that has heat exchanger stage (2a-2d) extend according to each described equipment in the claim of front.
12., it is characterized in that described equipment design makes described processing line (1) approximate horizontal ground extend according to each described equipment in the claim 1 to 11.
13., it is characterized in that described equipment design makes described processing line (1) generally perpendicularly extend according to each described equipment in the claim 1 to 11.
14., it is characterized in that described first sheet separation (5) in the described plate group (3) and second sheet separation (6) are by pad (15) sealing according to each described equipment in the claim of front.
15., it is characterized in that according to each described equipment in the claim of front, be provided with liquid trap (16) in each processing line (1), its roughly be connected to each heat exchanger stage (2a, 2b, 2c, 2d).
16. according to each described equipment in the claim of front, it is characterized in that, described equipment comprises thermocompressor (20), it is suitable for by the operation of high voltage external steam is provided, and it is suitable for accepting at least a portion of the interior steam that produces of heat exchanger stage (2d) at least in the end, to be used to mix this part steam and external steam, wherein mixture forms the described steam that is provided to described first heat exchanger stage (2a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0402809A SE527868C8 (en) | 2004-11-17 | 2004-11-17 | Heat exchanger system for evaporation |
| SE04028098 | 2004-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101061070A true CN101061070A (en) | 2007-10-24 |
| CN100557365C CN100557365C (en) | 2009-11-04 |
Family
ID=33516469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800393654A Active CN100557365C (en) | 2004-11-17 | 2005-11-03 | The heat exchange equipment that is used to evaporate |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP4762997B2 (en) |
| KR (1) | KR101225303B1 (en) |
| CN (1) | CN100557365C (en) |
| DE (1) | DE112005002537T5 (en) |
| SE (1) | SE527868C8 (en) |
| WO (1) | WO2006054936A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688430A (en) * | 2010-07-21 | 2016-06-22 | 阿奎巴克技术公司 | Distiller with scraper for film evaporation and wiper for removing deposit |
| CN108474627A (en) * | 2015-12-22 | 2018-08-31 | 阿法拉伐股份有限公司 | Distillation equipment with removable heat-exchangers of the plate type |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016107984A1 (en) * | 2016-04-29 | 2017-11-02 | Wärtsilä Serck Como Gmbh | Seawater desalination apparatus for desalination of seawater |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236577A (en) * | 1975-09-17 | 1977-03-19 | Hisaka Works Ltd | Plate type evaporation equipment |
| HU179903B (en) * | 1980-08-22 | 1982-12-28 | Laszlo Nadasi | Logic toy |
| DE3219387A1 (en) * | 1982-05-24 | 1983-12-01 | D.V.T. Büro für Anwendung Deutscher Verfahrenstechnik H. Morsy, 4000 Düsseldorf | ARRANGEMENT FOR THE DESALINATION OF SEA WATER BY THE MULTI-EFFECT EVAPORATION PROCESS |
| DE3219456A1 (en) * | 1982-05-24 | 1983-12-01 | Dvt Deutsch Verfahrenstech | CONTAINER FOR PRESSURE-SEALING A PACKING COLUMN |
| DE4431546A1 (en) * | 1994-09-05 | 1996-03-07 | Jakob Dr Ing Hois | Process and device for desalination of sea water |
| US5744009A (en) * | 1995-07-07 | 1998-04-28 | The M. W. Kellogg Company | Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator |
| JPH09108653A (en) * | 1995-10-16 | 1997-04-28 | Nkk Corp | Seawater desalination device |
| FI106296B (en) | 1998-11-09 | 2001-01-15 | Amsco Europ Inc Suomen Sivulii | Method and apparatus for treating water for evaporation |
| NO20016256A (en) * | 2001-12-20 | 2003-04-22 | Gnd Water As | Apparatus and method for distilling, for example, fresh water from salt water |
| JP3889326B2 (en) * | 2002-07-09 | 2007-03-07 | 株式会社ササクラ | Evaporative production method and apparatus for high purity pure water |
-
2004
- 2004-11-17 SE SE0402809A patent/SE527868C8/en unknown
-
2005
- 2005-11-03 CN CNB2005800393654A patent/CN100557365C/en active Active
- 2005-11-03 DE DE112005002537T patent/DE112005002537T5/en active Pending
- 2005-11-03 WO PCT/SE2005/001658 patent/WO2006054936A1/en active Application Filing
- 2005-11-03 KR KR1020077011093A patent/KR101225303B1/en active IP Right Grant
- 2005-11-03 JP JP2007541135A patent/JP4762997B2/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688430A (en) * | 2010-07-21 | 2016-06-22 | 阿奎巴克技术公司 | Distiller with scraper for film evaporation and wiper for removing deposit |
| CN105688430B (en) * | 2010-07-21 | 2018-12-04 | 阿奎巴克技术公司 | Distiller with the applicator for thin film evaporation and the scaler for removing deposit |
| CN108474627A (en) * | 2015-12-22 | 2018-08-31 | 阿法拉伐股份有限公司 | Distillation equipment with removable heat-exchangers of the plate type |
| CN108474627B (en) * | 2015-12-22 | 2020-03-17 | 阿法拉伐股份有限公司 | Distillation apparatus with removable plate heat exchanger |
| US10634433B2 (en) | 2015-12-22 | 2020-04-28 | Alfa Laval Corporate Ab | Distillation plant |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112005002537T5 (en) | 2007-10-18 |
| JP2008520410A (en) | 2008-06-19 |
| SE527868C8 (en) | 2006-09-26 |
| KR101225303B1 (en) | 2013-01-22 |
| SE527868C2 (en) | 2006-06-27 |
| SE0402809D0 (en) | 2004-11-17 |
| JP4762997B2 (en) | 2011-08-31 |
| SE0402809L (en) | 2006-05-18 |
| WO2006054936A1 (en) | 2006-05-26 |
| KR20070094733A (en) | 2007-09-21 |
| CN100557365C (en) | 2009-11-04 |
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