CN106362425B - More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus - Google Patents

More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus Download PDF

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Publication number
CN106362425B
CN106362425B CN201611038747.1A CN201611038747A CN106362425B CN 106362425 B CN106362425 B CN 106362425B CN 201611038747 A CN201611038747 A CN 201611038747A CN 106362425 B CN106362425 B CN 106362425B
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steam
evaporator
condensate
liquid
steam generator
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CN106362425A (en
Inventor
杨继禄
陈强
聂森
曲向民
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Deyang City Zhongjia Industrial Co Ltd
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Deyang City Zhongjia Industrial Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/0011Heating features
    • B01D1/0041Use of fluids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/0011Heating features
    • B01D1/0058Use of waste energy from other processes or sources, e.g. combustion gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/04Evaporators with horizontal tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/22Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/26Multiple-effect evaporating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/30Accessories for evaporators ; Constructional details thereof
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/16Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08Seawater, e.g. for desalination
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/04Flow arrangements
    • C02F2301/046Recirculation with an external loop
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/10Energy recovery
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination

Abstract

The invention discloses a kind of desalination plant, especially a kind of more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus belong to desalination plant technical field;The device includes at least two steam generator, at least two evaporator, condenser, separator and steam drive apparatus, steam generator is using more warm spent hot waters such as high temperature and low temperature as driving, driving steam is filled into conjunction with steam drive apparatus, seawater is desalinated in evaporator, condenser is condensed and is collected to steam, the concentrate of generation finally flows into separator, and water resource is made to recycle and collect the crystal of evaporative crystallization;It solves the problems, such as industrial waste water utilization using invention, using the spent hot water of multi-temperature, the efficiency that driving steam improves sea water desalination is filled into conjunction with steam drive apparatus, the setting in combination with separator recycles water resource and collects useful solute.

Description

More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus
Technical field
The present invention relates to a kind of desalination plant, especially a kind of more warm water vapour combination drive horizontal tube falling film multiple-effect evaporations Crystallization apparatus belongs to desalination plant technical field.
Background technology
Currently, numerous distilling apparatus have many designs, forced circulation, flash distillation, horizontal tube falling film etc. on meeting Liquid liquid Separation, These designs are required to consumption steam drive, also there is the both vapor compression distilling apparatus using electrical energy drive.Electric energy and steam drive High-grade energy is consumed, and there are a large amount of hot water in industrial production, existing distilling apparatus does not use hot water as power Driving, horizontal tube falling film evaporation device do not use hot water to drive.
In the industrial production, light after utilization especially in coastal, a large amount of fresh water of most industrial production needs Water liquid can be utilized again by filtration treatment, and also substantial portion of water is due to the vapour by the high temperature in industrial production Change forms vapor and is lost, and not only wastes water resource and wastes a large amount of heat, if it is possible to fully utilize Resource is saved and the reduction of cost is all of great significance.
Often fully the heat that spent hot water is included can not fully utilized often using industrial waste heat coolant-temperature gage, Therefore, it needs further to improve design for the heat utilization ratio of industrial waste water.
And in current crystallization apparatus, numerous evaporated crystallization devices have many designs on meeting separation of solid and liquid, force to follow Ring, flash distillation etc., these designs are required to consumption steam drive, also there is the vapor compression evaporation crystallization apparatus using electrical energy drive. Electric energy and steam drive consume high-grade energy, and have a large amount of hot water in industrial production, and existing evaporated crystallization device is equal Do not use hot water as power drive, horizontal tube falling film evaporation device does not use crystallizer, hot water driving evaporation is not used yet, in sea In water desalination process, processed seawater concentrate can be further processed, and can obtain more raw materials of industry.
Invention content
The goal of the invention of the present invention is:In view of the above problems, one kind is provided, low-grade a variety of temperature can be used Degree water combination drive steam makees power drive evaporative crystallization separation solid and liquid, and the energy of hot water in production process is rationally utilized Source can also collect more warm water vapour mixing of the condensate liquid of the condensate liquid and sea water desalination separated from various temperature hot water Drive horizontal tube falling film multiple-effect evaporation crystallization apparatus.
The technical solution adopted by the present invention is as follows:
A kind of more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus, including at least two steam generator, extremely Lack 2 evaporators, condenser, separator and steam drive apparatus, feed inlet, liquid material outlet and slurry are provided on the separator Material outlet, the steam generator are equipped with the first inlet, gas outlet and leakage fluid dram, the fluid passage of each steam generator High temperature waste hot water pipe is connected to separator by connecting with the feed inlet of separator, be additionally provided on the evaporator second into Liquid mouth;The evaporator is equipped with condensate liquid nozzle, feed liquid supplement nozzle, feed liquid discharge and the steam pipe for steam circulation Mouthful, steam drive apparatus is connected to by the steam channel series connection of each evaporator with condenser, the feed liquid supplement pipe of each evaporator Mouth is in parallel to be connected to feed liquid supplement pipe, and the steam nozzle includes steam inlet and steam (vapor) outlet, each steam generator Gas outlet connection corresponding with the steam inlet of evaporator respectively, the condenser is connected to condensate pipe.
More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus of the present invention, the quantity of the steam generator No more than the quantity of evaporator.It can ensure that a steam generator corresponds to an evaporator in this way, to make full use of thermal energy.
Further, the quantity of steam generator can also be more than the quantity of evaporator.There is no evaporator to carry out matched The gas outlet of steam generator can be directly connected to condenser, directly collect thermogenetic a small amount of steam more than industrial waste water.
Further, the quantity of the steam generator and evaporator is 4.The application range of this design method is most Extensively, the efficiency used is highest.
More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus of the present invention, the condensate liquid nozzle include 1 A condensate liquid import and 2 condensate outlets.The cascade that condensate liquid may be implemented, can ensure out with heat Condensate liquid fully utilizes again.
Further, the condensate liquid Tandem is connected to condensate pipe.Making for thermal energy is improved using concatenated mode With rate.
The present invention more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus, the condensate liquid nozzle parallel connection with Condensate pipe is connected to.The pipeline distance of condensate liquid can be shortened by the way of in parallel.
More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus of the present invention, the feed liquid that is located at supplement Guan Yuan The feed liquid discharge at end is connected to concentrate gathering tube, and the feed liquid discharge of other each evaporators passes through circulating pump and material Liquid supplements pipe connection, forms reverse feed liquid channels in series.Feed liquid can be made to enter after evaporation utilizes using this mode to recycle again It utilizes, desalt processing fully is carried out to seawater.
Further, the feed liquid discharge of the evaporator positioned at feed liquid supplement pipe distal end also passes through circulating pump and material Liquid supplements pipe connection.The higher seawater of temperature that afterbody flows out can either be recycled again by profit using the design of which With, while accelerating seawater discharge in suit equipment when equipment stops.
More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus of the present invention, the feed liquid of each evaporator Discharge parallel connection is connected to concentrate gathering tube.The liquid in evaporator can quickly be discharged.
More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus of the present invention, the steam generator further include Shell with cavity, enclosure interior are from top to bottom disposed with foam-blocker, partition board and distributor, are also set in the middle part of the partition board It is equipped with cycle returning charge cylinder, first inlet and the second inlet are connected to distributor, and gas outlet is located at institute above foam-blocker Shell on, leakage fluid dram is located at below shell.
Further, the distributor is annulus, and the injection channel sprayed for industrial wastewater is offered on distributor.
Further, the injection channel is the annular groove being opened on annulus.
Further, Open Side Down for the annular groove.To lower precipitation after larger impurity can be made to enter steam generator.
A kind of method that more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus desalinize seawater, including following step Suddenly:
A, spent hot water is introduced into I effect steam generator by high temperature waste hot water gathering tube, steam is with I effect steam generation Device gas outlet is introduced into I effect evaporator, and spent hot water is sequentially entered by leakage fluid dram in other steam generators, and the steam of generation is logical It crosses gas outlet to enter in corresponding evaporator, spent hot water eventually enters into concentrate gathering tube;
B, steam drive apparatus will drive steam to enter by the steam inlet of I effect evaporator 1, pass through I effect evaporator Steam (vapor) outlet sequentially enters other evaporators, and the steam being introduced into steam generator enters cooling in condenser, condensation together Liquid introduces condensate pipe;
C, seawater parallel connection is introduced into evaporator by feed liquid supplement pipe, and the double evaporation-cooling in evaporator carries out sea water desalination;
D, the condensate liquid and distillate generated in evaporator is collected by condensate liquid nozzle in condensate pipe;
E, the seawater after desalination is collected by feed liquid discharge in concentrate gathering tube;
F, concentrate gathering tube enters separator by feed inlet, borrows the temperature evaporative crystallization of spent hot water, and liquid material passes through Liquid material outlet introduces feed liquid supplement pipe, and the crystal of generation is discharged by slurry outlet to be collected.
The method that a kind of more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus of the present invention desalinize seawater, step Condensate liquid and distillate described in rapid d enter from I effect evaporator in other evaporators successively, are finally emitted into condensate pipe.
The method that a kind of more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus of the present invention desalinize seawater, step Seawater after desalinating described in rapid e, which is entered by feed liquid discharge in feed liquid supplement pipe, to be introduced back into other evaporators, finally Pipe is supplemented by the feed liquid of I effect steam generator to be collected into concentrate gathering tube.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows:
1, more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus using the present invention solve industrial waste heat The problem of water conservancy, is utilized and is filled into the method for low temperature waste heat water by high temperature waste hot water cascade fully by the heat of industrial waste water It can use, the efficiency of sea water desalination is can effectively ensure that in conjunction with driving steam, meets industrial demand.
2, more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus using the present invention can make full use of water Resource can realize evaporative crystallization by the setting of separator under the driving of hot water, liquid be recycled again, while energy Enough generate certain crystal solute.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention;
Fig. 2 is the structural schematic diagram of evaporator;
Fig. 3 is the structural schematic diagram of steam generator.
It is marked in figure:1- I imitate evaporator, 2- II imitate evaporator, 3- III imitate evaporator, 4- IV imitate evaporator, 5- condensers, 6- condensate pipes, 7- circulating pumps, 8- concentrates gathering tube, 9- feed liquids supplement pipe, 10- condensate liquids nozzle, the import of 10a- condensate liquids, 10b- condensate outlets, 11- steam nozzle, the steam inlets 11a-, 11b- steam (vapor) outlets, 12- feed liquids supplement nozzle, 13- feed liquids Discharge, 14- high temperature waste hots supply mains, 15- I imitates steam generator, 16- II imitates steam generator, steam is counter gives birth to for the effects of 17- III Device, 18- IV imitate steam generator, the first inlets of 19-, the gas outlets 20-, 21- leakage fluid drams, 22- shells, 23- foam-blockers, 24- Partition board, 25- distributors, 26- cycle returning charges cylinder, 27- service ports, 28- low-temperature waste heats water pipe, the second inlets of 29-, 30- separation Device, 30a- feed inlets, 30b- slurry outlets, the outlet of 30c- liquid materials, 31- steam drive apparatus.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics ?.
Embodiment 1
A kind of more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus, as shown in Figure 1, being steamed including at least two Vapour generator, at least two evaporator, condenser 5, separator 30 and steam drive apparatus 31 are provided on the separator 30 Feed inlet 30a, liquid material export 30c and slurry outlet 30b, as shown in figure 3, the steam generator is equipped with the first inlet 19, gas outlet 20 and leakage fluid dram 21, the fluid passage of each steam generator and the feed inlet 30a of separator 30 will by connecting High temperature waste hot water pipe 14 is connected to separator 30, and the second inlet 29 is additionally provided on the evaporator;As shown in Fig. 2, described Evaporator is equipped with condensate liquid nozzle 10, feed liquid supplement nozzle 12, feed liquid discharge 13 and the steam nozzle for steam circulation 11, steam drive apparatus 31 is connected to by the steam channel series connection of each evaporator with condenser 5, the feed liquid supplement of each evaporator Nozzle parallel connection and feed liquid supplement pipe 9 be connected tos, and the steam nozzle 11 includes steam inlet 11a and steam (vapor) outlet 11b, described each The connection corresponding with the steam inlet 11a of evaporator respectively of the gas outlet 20 of steam generator, the condenser 5 and condensate pipe 6 Connection.
Specifically, in the present embodiment, evaporator is horizontal pipe falling film evaporator.Further, leakage fluid dram 21 also passes through Parallel connection is connected to concentrate gathering tube 8.In normal operation, in the last one steam generator, all industrial waste waters pass through Concentrate is flowed into after steam generation facility again.That is, being provided on fluid pipeline for preventing between 2 steam generators of distal end Industrial wastewater is directly entered the valve of concentrate gathering tube 8.
In a wherein specific implementation mode, the quantity of steam generator is no more than the quantity of evaporator.It can fill in this way The steam that code insurance card steam generator generates all is into evaporator utilization.Certainly, in another specific implementation mode, steam The quantity of generator also can be more than the quantity of evaporator.The gas outlet 20 for failing the steam generator for having evaporator matching connects Pass through condenser 5.
In another specific implementation mode, the quantity of steam generator and evaporator is 4.I.e.:Steam generator packet It includes I effect steam generator 15, II effect steam generator 16, III and imitates the anti-raw effect of device 17 and IV steam generator 18 of steam;Evaporator Evaporator 2, III, which is imitated, including I effect evaporator 1, II imitates the effect evaporator 4 of evaporator 3 and IV.The application range of this design method is most wide, Practical efficiency is highest.Certainly, which is not limited to 4, may be arranged as difference in other embodiment Quantity, according to real-world environment demand, such as it is set as 2,3 or 6.
Specifically, the fluid passage of above-mentioned each steam generator and the feed inlet 30a of separator 30 will be high by series connection Warm waste heat water pipe 14 is connected to separator 30, and connection type is for example:High temperature waste hot supply mains 14 and I imitates the feed liquor of evaporator 15 Mouth 19 is connected to, and the leakage fluid dram 21 of I effect steam generator 15 is connected to the first inlet 19 of II effect steam generator 16, II effect steaming The leakage fluid dram 21 of vapour generator 16 is connected to the first inlet 19 of III effect steam generator 17, the row of III effect steam generator 17 Liquid mouth 21 is connected to the first inlet 19 of IV effect steam generator 18, the leakage fluid dram 21 and concentrate of IV effect steam generator 18 Gathering tube 8 be connected to, concentrate gathering tube 8 is connected to by feed inlet 30a with separator 30.
As what is advanced optimized, in a wherein specific implementation mode, the end steam hair of nearly high temperature waste hot water pipe 14 Second inlet 29 of raw device is connected to high temperature waste hot water pipe 14,29 parallel connection of the second inlet of remaining steam generator and low temperature Hot-water line 28 is divided to be connected to, such as:Second inlet 29 of I effect steam generator 15 is connected to high temperature waste hot water pipe 14, and II effect is steamed The of the second inlet 29 and IV effect steam generator 18 of the second inlet 29, III effect steam generator 17 of vapour generator 16 Two inlets 29 are connected to low-temperature waste heat water pipe 28 respectively.And in this embodiment, the first feed liquor of the I effect steam generator 15 Mouth 19 and the second inlet 29 share a nozzle.
Steam drive apparatus 31 is connected to by the steam channel series connection of above-mentioned each evaporator with condenser 5, connection type Such as:Steam drive apparatus 31 is connected to the steam inlet 11a of I effect evaporator 1, the steam (vapor) outlet 11b and II of I effect evaporator 1 Imitate the steam inlet 11a connections of evaporator 2, the steam inlet 11a of the effect evaporators 3 of steam (vapor) outlet 11b and III of II effect evaporator Connection, the steam (vapor) outlet 11b of III effect evaporator 3 are connected to the steam inlet 11a of IV effect evaporator 4, the steam of IV effect evaporator 4 Outlet 11b is connected to condenser 5.
The gas outlet 20 of above-mentioned steam generator is connected to the steam inlet 11a of evaporator respectively, and connection type is for example: The gas outlet 20 of I effect steam generator 15 is connected to the steam tube inlet 11a of I effect evaporator 1, and II effect steam generator 16 goes out Gas port 20 is connected to the steam tube inlet 11a of II effect evaporator 2, and evaporator is imitated in the gas outlet 20 and III of III effect steam generator 17 Imitate the steam tube inlet 11a companies of evaporator 4 in the gas outlet 20 and IV of 3 steam tube inlet 11a connections, IV effect steam generator 18 It is logical.
In above-mentioned design basis, further designed for condensate liquid nozzle 10, it is cold in another specific implementation mode Lime set nozzle 10 includes 1 condensate liquid import 10a and 2 condensate outlet 10b.A wherein condensate outlet 10b is located at evaporation End where the outlet of device transverse tube, for collecting the condensate liquid come out from transverse tube, another condensate outlet 10b is then located at evaporator End where transverse tube entrance, and abut condensate liquid import 10a.Further, in order to effectively promote the temperature of condensate liquid itself The steam spent and be contained in condensate liquid, in a wherein specific implementation mode, condensate liquid Tandem is connected to condensate pipe 6, Such as:The condensate inlet 10a of I effect evaporator 1 is closed, and the condensate outlet 10b of I effect evaporator 1 is cold with II effect evaporator 2 The 10a connections of lime set entrance, the condensate outlet 10b of II effect evaporator 2 are connected to the condensate inlet 10a of III effect evaporator 3, and III The condensate outlet 10b for imitating evaporator 3 is connected to the condensate inlet 10a of IV effect evaporator 4, the condensate liquid of IV effect evaporator 4 Outlet 10b is connected to condensate pipe 6.The condensate liquid for most starting out has certain temperature with certain steam, is It is sufficient to utilize waste heat, sequentially enter next stage evaporator, the adjoint quantity of steam of final out condensate liquid minimizes.
Certainly, the outlet of condensate liquid can also be only designed as 1 condensate liquid nozzle 10 as the design to routinize.Cause This, on the basis of embodiment in summary, the connection type of condensate liquid nozzle 10 is not limited only to concatenated mode, In another specific implementation mode, condensate liquid nozzle 10 can also be connected to by way of in parallel with condensate pipe 8.Each evaporator Condensate liquid nozzle 10 be directly connected to condensate pipe 8, directly collect liquefied condensate liquid in the way of in parallel, can shorten The pipeline distance of condensate liquid.
In another specific implementation mode, the feed liquid discharge 13 positioned at the evaporator of 9 distal end of feed liquid supplement pipe passes through Concentrate gathering tube 8 is connected to separator 30, and the feed liquid discharge 13 of other each evaporators is mended by circulating pump 7 and feed liquid Fill the connection of pipe 9.For example, as shown in Figure 1, I effect evaporator 1 is located at the distal end of feed liquid supplement pipe 9, therefore, the discharging modes of material It is sequentially to be by the channel formed of connecting:IV effect evaporator 4, III imitates evaporator 3, II and imitates the effect evaporator of evaporator 2 to I 1.Make full use of the temperature in system that seawater is enable fully to desalinate using this mode.On the basis of designing herein, further, The feed liquid discharge 13 of the evaporator positioned at 9 distal end of feed liquid supplement pipe also supplements pipe 9 by circulating pump 7 and feed liquid and connects It is logical.Seawater can be made to make full use of in this way, fully desalinated, solved seawater and do not asked with regard to discharged by abundant desalination Topic, such as increasing by 1 valve on pipeline of the concentrate to concentrate gathering tube 8 for discharging, cut off feed liquid in operational process Trend, seawater resources are made full use of by circulating pump 7.Ensure that evaporation after concentrate discharge, while also by material channel most The concentrate of rear stage recycles again.
In another specific implementation mode, feed liquid discharge 13 is in parallel to be connected to concentrate gathering tube 8.Can quickly have Liquid inside the discharge evaporator of effect.
And the object of steam generator practicality is industrial waste water, and therefore, in a wherein specific implementation mode, the steaming Vapour generator further includes the shell 22 for having cavity, and enclosure interior is from top to bottom disposed with foam-blocker 23, partition board 24 and divides Cloth device 25, the partition board middle part are additionally provided with cycle returning charge cylinder 26, first inlet, 19 and second inlet 29 and distribution Device 25 is connected to, and gas outlet 20 is located on the shell at 23 top place of foam-blocker, and leakage fluid dram 21 is located at below shell.Using this mode It can be effectively filtered the foam that impurity and steam in industrial waste water are generated with waste water.Specifically, distributor 25 is circle Ring-shaped offers the injection channel sprayed for industrial wastewater on annulus.Preferably, injection channel is to be opened in annulus On annular groove.Further, Open Side Down for annular groove.To lower precipitation after larger impurity can be made to enter steam generator.More Specifically, being additionally provided with the equipment maintenance port 27 for maintenance of equipment on steam generator.
More warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus method for desalting seawater designed by the present embodiment, Include the following steps:
A, spent hot water is introduced into I effect steam generator 15 by high temperature waste hot water gathering tube 14, steam is with I effect steam 15 gas outlet 20 of generator is introduced into I effect evaporator 1, and spent hot water is sequentially entered by leakage fluid dram 21 in other steam generators, The steam of generation is entered by gas outlet in corresponding evaporator, and spent hot water eventually enters into concentrate gathering tube 8;
B, steam drive apparatus 31 will drive steam to enter by the steam inlet 11a of I effect evaporator 1, be evaporated by I effect The steam (vapor) outlet 11b of device 1 sequentially enters other evaporators, and the steam being introduced into steam generator enters cold in condenser together But, condensate liquid introduces condensate pipe 6;
C, seawater parallel connection is introduced into evaporator by feed liquid supplement pipe 9, and the double evaporation-cooling in evaporator carries out sea water desalination;
D, the condensate liquid and distillate generated in evaporator is collected into condensate pipe by condensate liquid nozzle 10(6)In;
E, the seawater after desalination is collected by feed liquid discharge 13 in concentrate gathering tube 8;
F, concentrate gathering tube 8 enters separator 31 by feed inlet 31a, borrows the temperature evaporative crystallization of spent hot water, liquid Material exports 31c by liquid material and introduces feed liquid supplement pipe 9, and the crystal of generation is collected by slurry outlet 31b discharges.
Specifically, the condensate liquid and distillate described in step d enter from I effect evaporator 1 in other evaporators successively, finally It is emitted into condensate pipe 6.
More specifically, the seawater after desalinating described in step e enters feed liquid by feed liquid discharge 13 and supplements in pipe 9 again It is introduced into other evaporators, is collected into concentrate gathering tube 8 finally by the feed liquid supplement pipe 9 of I effect steam generator 1.
In conclusion more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus using the present invention solve work The problem of industry spent hot water utilizes fills into driving steam in conjunction with steam drive apparatus and improves seawater using the spent hot water of multi-temperature The efficiency of desalination, the setting in combination with separator recycle water resource and collect useful solute, effectively save water resource And the energy.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed New feature or any new combination, and disclose any new method or process the step of or any new combination.

Claims (10)

1. a kind of more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus, it is characterised in that:Including at least two steam Generator, at least two evaporator, condenser(5), separator(30)And steam drive apparatus(31), the separator(30)On It is provided with feed inlet(30a), liquid material outlet(30c)And slurry outlet(30b), the steam generator is equipped with the first inlet (19), gas outlet(20)And leakage fluid dram(21), the fluid passage and separator of each steam generator(30)Feed inlet(30a) By connecting high temperature waste hot water pipe(14)And separator(30)It is connected to, the second inlet is additionally provided on the evaporator (29);The evaporator is equipped with condensate liquid nozzle(10), feed liquid supplement nozzle(12), feed liquid discharge(13)With for steam The steam nozzle of circulation(11), the steam channel series connection of each evaporator is by steam drive apparatus(31)And condenser(5)Connection, The feed liquid supplement nozzle parallel connection of each evaporator is managed with feed liquid supplement(9)Connection, the steam nozzle(11)Including steam inlet (11a)And steam (vapor) outlet(11b), the gas outlet of each steam generator(20)Respectively with the steam inlet of evaporator (11a)Corresponding connection, the condenser(5)With condensate pipe(6)Connection, nearly high temperature waste hot water pipe(14)End steam generation Second inlet of device(29)With high temperature waste hot water pipe(14)Connection, the second inlet of remaining steam generator(29)It is in parallel with Low-temperature waste heat water pipe(28)Connection.
2. more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus as described in claim 1, it is characterised in that:Institute The quantity for stating steam generator is no more than the quantity of evaporator.
3. more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus as described in claim 1, it is characterised in that:Institute The quantity for stating steam generator and evaporator is 4.
4. more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus as described in claim 1, it is characterised in that:Institute State condensate liquid nozzle(10)Including 1 condensate liquid import(10a)With 2 condensate outlets(10b), condensate liquid Tandem with it is cold Condensate pipe(6)Connection.
5. more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus as described in claim 1, it is characterised in that:Position It supplements and manages in feed liquid(9)The feed liquid discharge of distal end(13)With concentrate gathering tube(8)Connection, the material of other each evaporators Liquid discharge(13)Pass through circulating pump(7)It supplements and manages with feed liquid(9)Connection, forms reverse feed liquid channels in series.
6. more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus as claimed in claim 4, it is characterised in that:Position It supplements and manages in feed liquid(9)The feed liquid discharge of the evaporator of distal end(13)Also pass through circulating pump(7)It supplements and manages with feed liquid(9)Even It is logical.
7. more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus as described in claim 1, it is characterised in that:Institute It further includes the shell for having cavity to state steam generator(22), enclosure interior is from top to bottom disposed with foam-blocker(23), every Plate(24)And distributor(25), the partition board middle part is additionally provided with cycle returning charge cylinder(26), first inlet(19)With Two inlets(29)With distributor(25)Connection, gas outlet(20)Positioned at foam-blocker(23)On shell where top, leakage fluid dram (21)Below shell.
8. the side that more warm water vapour combination drive horizontal tube falling film multiple-effect evaporation crystallization apparatus as described in claim 1 desalinize seawater Method, it is characterised in that:Include the following steps:
A, pass through high temperature waste hot water gathering tube(14)Spent hot water is introduced into I effect steam generator(15)In, steam is with I effect steam Generator(15)Gas outlet(20)Introduce I effect evaporator(1)In, spent hot water passes through leakage fluid dram(21)Sequentially enter other steam hair In raw device, the steam of generation is entered by gas outlet in corresponding evaporator, and spent hot water eventually enters into concentrate gathering tube(8);
B, steam drive apparatus(31)Steam will be driven to pass through the steam inlet of I effect evaporator 1(11a)Into, pass through I effect evaporation Device(1)Steam (vapor) outlet(11b)Other evaporators are sequentially entered, enter condenser together with the steam that steam generator introduces Middle cooling, condensate liquid introduce condensate pipe(6);
C, feed liquid supplement pipe(9)Seawater parallel connection is introduced into evaporator, the double evaporation-cooling in evaporator, carries out sea water desalination;
D, the condensate liquid and distillate generated in evaporator passes through condensate liquid nozzle(10)It is collected into condensate pipe(6)In;
E, the seawater after desalination passes through feed liquid discharge(13)It is collected into concentrate gathering tube(8)In;
F, concentrate gathering tube(8)Pass through feed inlet(31a)Into separator, the temperature evaporative crystallization of spent hot water, liquid material are borrowed It is exported by liquid material(31c)Introduce feed liquid supplement pipe(9), the crystal of generation passes through slurry outlet(31b)Discharge is collected.
9. the method to desalinize seawater as claimed in claim 8, it is characterised in that:Condensate liquid and distillate described in step d according to It is secondary to imitate evaporator from I(1)Into in other evaporators, it is finally emitted into condensate pipe(6)In.
10. the method to desalinize seawater as claimed in claim 8, it is characterised in that:Seawater after desalinating described in step e passes through material Liquid discharge(13)It supplements and manages into feed liquid(9)In be introduced back into other evaporators, finally by I effect steam generator (1)Feed liquid supplement pipe(9)It is collected into concentrate gathering tube(8)In.
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