CN106335952A - Device and method for utilizing organic steam to drive multi-effect evaporator to treat salt-containing sewage - Google Patents
Device and method for utilizing organic steam to drive multi-effect evaporator to treat salt-containing sewage Download PDFInfo
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- CN106335952A CN106335952A CN201610909466.2A CN201610909466A CN106335952A CN 106335952 A CN106335952 A CN 106335952A CN 201610909466 A CN201610909466 A CN 201610909466A CN 106335952 A CN106335952 A CN 106335952A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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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
- C02F1/043—Details
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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
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention relates to a device and method for utilizing organic steam to drive a multi-effect evaporator to treat salt-containing sewage. The device comprises a desalted water waste heat recycling device, an organic steam waste heat recycling device, a multi-effect evaporation device and an organic steam generating device, wherein the desalted water waste heat recycling device, the organic steam waste heat recycling device and the multi-effect evaporation device are in series connection sequentially through a pipeline; and the organic steam generating device is connected with the organic steam waste heat recycling device through a pipeline. The multi-effect evaporation device comprises multistage evaporators which are sequentially in series connection through a pipeline. Except the first stage of evaporator, each remaining stage of evaporator is connected with the desalted water waste heat recycling device through a pipeline. The first stage of evaporator is connected with the organic steam waste heat recycling device and the organic steam generating device through pipelines respectively, and the last stage of evaporator is connected with the organic steam waste heat recycling device through a pipeline. The device makes full use of thermal energy of organic steam, the heat utilization rate is improved, the problems of irreversible energy loss and the like are reduced, and the novel device and method are provided for treating the salt-containing sewage.
Description
Technical field
The invention belongs to technical field of sewage, specifically, it is related to a kind of Apparatus and method for processing saline sewage.
Background technology
Multi-effect evaporator, as a kind of efficient sea water, saline-water reclamation device, is widely used and promotes.In multiple-effect evaporation
When device carries out sea water, saline-water reclamation, in addition to meeting is affected by operating parameters such as such as pressure, temperature, feeding manners, drive heat
Source is also highly important influence factor.
At present, multi-effect evaporator using driving heat source be generally adopted by the industrial steam of high-quality.But, advise big
In the sea water of mould, saline-water reclamation engineering, the use of a large amount of industrial steams necessarily leads to the drastically rising of cost.Much industry now
Enterprise adopts the rich heat of various tastes in heat medium water returned enterprise, for example: more than 300 DEG C of waste heat can produce substantial amounts of
Steam, and then drive multi-effect evaporator to carry out the desalination of sea water, saline.Although the internal heat network of a lot of enterprises is completeer
Kind, the heat of high-quality all reclaims, but remaining tow taste heat is difficult to produce high-quality steam.
The common feature that solar electrical energy generation, geothermal energy resources generating etc. have is to reclaim tow taste heat with by organic media
Produce organic steam afterwards to generate electricity, it follows that organic media can take low temperature exhaust heat to be possibly realized.But organic steam drives many
The technology of the feasibility of effect evaporation and correlation need to study further.
Content of the invention
The present invention be directed to prior art in saline sewage processing procedure using steam when exist high steam high cost,
The low the problems referred to above of low-pressure steam efficiency, there is provided a kind of organic steam drive multi-effect evaporator process saline sewage equipment and
Method, this Apparatus and method for solves the problems such as thermal loss in prior art, high cost, is that multiple-effect evaporation concentrates high-salt sewage
Provide a kind of high effective way.
In order to achieve the above object, the invention provides a kind of organic steam drives multi-effect evaporator to process saline sewage
Equipment, including the desalination water waste-heat recovery device being sequentially connected in series by pipeline, organic steam waste-heat recovery device and multiple-effect
Vaporising device, and the organic steam generating meanss being connected with described organic steam waste-heat recovery device by pipeline；Described many
Effect vaporising device includes the multi-stage evaporator being sequentially connected in series by pipeline, in addition to first evaporator, remaining evaporation at different levels
Device is all connected with desalination water waste-heat recovery device by pipeline, first evaporator pass through pipeline respectively with described organic steam more than
Heat reclamation device and described organic steam generating meanss connect, and afterbody vaporizer passes through pipeline and organic steam waste heat recovery
Device.
As the above-mentioned organic steam of the present invention drive multi-effect evaporator process saline sewage equipment decision design, every grade
The top of vaporizer is provided with steam (vapor) outlet, and top is provided with steam inlet, and the steam inlet of first evaporator passes through pipeline and has
Machine steam raising plant connects, and the steam inlet of rear stage vaporizer is passed through pipeline and connected with the steam (vapor) outlet of previous stage vaporizer
Connect；The bottom of every grade of vaporizer is provided with outlet, and described outlet is connected with described steam inlet.
Multi-effect evaporator is driven to process the design further of the equipment of saline sewage as the above-mentioned organic steam of the present invention,
The steam (vapor) outlet of rear stage vaporizer connects condensing units, described condensing units and described desalination water waste heat recovery dress by pipeline
Put connection.
Multi-effect evaporator is driven to process the decision design of the equipment of saline sewage as the above-mentioned organic steam of the present invention, described
Condensing units are condenser.
Multi-effect evaporator is driven to process the design further of the equipment of saline sewage as the above-mentioned organic steam of the present invention, often
The steam (vapor) outlet of level vaporizer all connects vacuum pump by pipeline.
Multi-effect evaporator is driven to process the design further of the equipment of saline sewage as the above-mentioned organic steam of the present invention, often
The bottom side of level vaporizer is provided with inlet, and opposite side is provided with liquid outlet, and the inlet of previous stage passes through pipeline and rear stage
Liquid outlet connect.
Multi-effect evaporator is driven to process the decision design of the equipment of saline sewage as the above-mentioned organic steam of the present invention, described
Inlet is connected with described steam (vapor) outlet.
Multi-effect evaporator is driven to process the decision design of the equipment of saline sewage as the above-mentioned organic steam of the present invention, described
Desalination water waste-heat recovery device is desalination water waste-heat recoverer, and described organic steam waste-heat recovery device returns for organic steam waste heat
Receive device, described organic steam generating meanss are organic steam generator.
In order to achieve the above object, present invention also offers a kind of organic steam drives multi-effect evaporator to process saline sewage
Method, containing following steps:
Saline sewage sequentially enters desalination water waste-heat recovery device, organic steam waste-heat recovery device, multi-effect evaporating device
Afterbody vaporizer, and sequentially enter evaporations at different levels according to the order transmitted to previous stage vaporizer from rear stage vaporizer
Device, finally enters first evaporator；
Add organic solution in organic steam generating meanss, produce organic steam, organic steam is entered by pipeline many
The first evaporator of effect vaporising device, carries out heat exchange with the saline sewage entering first evaporator, makes saline sewage negative
Produce indirect steam under the conditions of pressure, after the saline sewage heat exchange in first evaporator, discharge first evaporator；
The indirect steam that in first evaporator, saline sewage produces passes through pipeline entrance second level vaporizer, and with entrance
The saline sewage of second level vaporizer carries out heat exchange makes saline sewage produce indirect steam under condition of negative pressure；
According to above-mentioned same mode, in upper level vaporizer, saline sewage changes thermogenetic indirect steam and enters next stage
Vaporizer simultaneously carries out heat exchange and makes saline sewage produce secondary steaming under condition of negative pressure with the saline sewage entering next stage vaporizer
Vapour, completes the heat exchange of indirect steam and saline sewage in remaining vaporizer at different levels；
After organic steam heat exchange, organic steam waste-heat recovery device is entered by pipeline, and return with entering organic steam waste heat
The saline sewage receiving device device carries out heat exchange, and the desalination water under condensing after indirect steam heat exchange enters desalination water waste heat by pipeline
Retracting device, and carry out heat exchange with entering desalination water waste-heat recovery device；
Organic steam after organic steam waste-heat recovery device heat exchange enters organic steam generating meanss, warp by pipeline
Desalination water after desalination water waste-heat recovery device heat exchange discharges desalination water waste-heat recovery device.
As the decision design of said method of the present invention, the indirect steam that in afterbody vaporizer, saline sewage produces exists
After cooling down in condensing units, desalination water waste-heat recovery device is entered by pipeline.
Compared with prior art, advantages of the present invention and having the active effect that
(1) organic steam that the present invention provides drives multi-effect evaporator to process the equipment of saline sewage, and structure is simple, operation
Convenient, driving heat source is used as by organic steam, the heat energy of organic steam can be made full use of, improve organic steam utilization rate,
Reduce irreversible energy loss, reduce desalinating cost.
(2) organic steam that the present invention provides drives multi-effect evaporator to process the equipment of saline sewage, is provided with organic steam
Waste-heat recovery device and desalination water waste-heat recovery device, reclaim organic steam by organic steam waste-heat recovery device, repeat profit
With reduce further desalinating cost, desalination water being reclaimed by desalination water waste-heat recovery device, the desalination water of recovery can be direct
Use.
(3) organic steam that the present invention provides drives multi-effect evaporator to process the equipment of saline sewage, multi-effect evaporating device
When carrying out heat exchange, organic steam only enters first evaporator and carries out heat exchange with saline sewage, and remaining vaporizer at different levels is all adopted
Carry out heat exchange with the indirect steam and saline sewage that produce after saline sewage heat exchange in upper level vaporizer, and saline sewage is from
Rear stage vaporizer enters multi-effect evaporating device, enters vaporizers at different levels to the mode of previous stage vaporizer transmission step by step successively,
Finally enter first evaporator, in multi-effect evaporating device the number phase of vaporizer simultaneously as organic steam temperature is higher,
A small amount of supply organic steam can obtain the product of distillation of equivalent, and total heat conduction area is less, is entering multiple-effect generating meanss
Vapor (steam) temperature identical when, the vaporizer number steam needing fewer more, and total heat conduction area is fewer.
(4) organic steam that the present invention provides drives the method that multi-effect evaporator processes saline sewage, using organic steam
As driving heat source, saline sewage is preheated, using organic steam, the saline sewage in first evaporator is changed
Heat, the saline sewage in the saline sewage in remaining vaporizer at different levels and its upper level vaporizer changes thermogenetic indirect steam and enters
Row heat exchange, makes full use of the heat energy of organic steam, improves heat utilization ratio, reduces irreversible energy loss, reduce into
This, overcome the problems such as thermal loss in prior art, high cost, is that multiple-effect evaporation concentration saline sewage provides one kind efficiently
Approach.
Brief description
Fig. 1 is that organic steam described in the embodiment of the present invention 1 drives multi-effect evaporator to process the structure of the equipment of saline sewage
Sketch.
Fig. 2 is that organic steam described in the embodiment of the present invention 2 drives multi-effect evaporator to process employing in the method for saline sewage
The water generation ratio gwr obtaining when r123 and r600a is as driving heat source.
Fig. 3 is that organic steam described in the embodiment of the present invention 2 drives multi-effect evaporator to process employing in the method for saline sewage
The thermal efficiency hsu obtaining when r123 and r600a is as driving heat source.
Fig. 4 is that organic steam described in the embodiment of the present invention 3 drives multi-effect evaporator to process the structure of the equipment of saline sewage
Sketch.
Fig. 5 is that organic steam described in the embodiment of the present invention 5 drives multi-effect evaporator to process the structure of the equipment of saline sewage
Sketch.
Fig. 6 is that organic steam described in the embodiment of the present invention 7 drives multi-effect evaporator to process the structure of the equipment of saline sewage
Sketch.
1st, desalination water waste-heat recovery device, 2, organic steam waste-heat recovery device, 3, multi-effect evaporating device, 31, the first order
Vaporizer, 32, second level vaporizer, 33, third evaporator, 34, fourth stage vaporizer, 35, level V vaporizer, 4, organic
Steam raising plant, 5, vacuum pump, 61, saline sewage pipeline, 62, organic steam pipeline, 63, indirect steam pipeline, 64, desalination
Water pipeline, 65, vacuum lines, 7, condensing units.
Specific embodiment
Below, by exemplary embodiment, the present invention is specifically described.It should be appreciated, however, that not entering one
In the case of step narration, the element in an embodiment, structure and features can also be advantageously incorporated into other embodiment
In.In describing the invention, it should be noted that " top ", " bottom ", " on ", D score, " side ", the instruction such as " opposite side "
Orientation or position relationship are based on position relationship shown in the drawings, are for only for ease of the description present invention and simplify description, and not
It is instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.Term " first ", " second ", " the 3rd ", " the 4th " and " the 5th " is only used for describing purpose,
And it is not intended that indicating or hint relative importance.
Embodiment 1: in the present embodiment, referring to Fig. 1, there is provided a kind of organic steam drives multi-effect evaporator to process saliferous
The equipment of sewage, more than the desalination water waste-heat recovery device 1 being sequentially connected in series by saline sewage pipeline 61, organic steam
Heat reclamation device 2 and multi-effect evaporating device 3, and by organic steam pipeline 62 and described organic steam waste-heat recovery device 2
The organic steam generating meanss 4 connecting；Described multi-effect evaporating device includes being sequentially connected in series by indirect steam pipeline 63
Three-level vaporizer, in addition to first evaporator 31, second level vaporizer 32 and third evaporator 33 are all by desalinating water pipeline
64 are connected with desalination water waste-heat recovery device 1, first evaporator 31 pass through organic steam pipeline 62 respectively with described organic steaming
Vapour waste-heat recovery device 2 and described organic steam generating meanss 4 connect, third evaporator 33 pass through saline sewage pipeline 61 with
Described organic steam waste-heat recovery device 2 connects.
Realize heat exchange and saline sewage for the ease of organic steam and change thermogenetic indirect steam realization with organic steam
Heat exchange, the top of every grade of vaporizer is provided with steam (vapor) outlet, and top is provided with steam inlet, and the steam inlet of first evaporator 31 leads to
Cross organic steam pipeline 62 to be connected with organic steam generating meanss 4, the steam inlet of second level vaporizer 32 passes through indirect steam
Pipeline 63 is connected with the steam (vapor) outlet of first evaporator 31, and the steam inlet of third evaporator 33 passes through indirect steam pipeline
63 are connected with the steam (vapor) outlet of second level vaporizer 32；The bottom of every grade of vaporizer is provided with outlet, described outlet with described
Steam inlet connects.
Require according to producing water, need to make every grade of vaporizer be held at negative pressure state, in order that every grade of vaporizer keeps negative
Pressure condition, referring to Fig. 1, the steam (vapor) outlet of every grade of vaporizer is all connected vacuum pump 5 by vacuum lines 65, is tieed up by vacuum pump
Condition of negative pressure required for holding.
For the ease of the conveying of saline sewage, realize the desalt processing of saline sewage, the bottom side of every grade of vaporizer sets
There is inlet, opposite side is provided with liquid outlet, the inlet of previous stage is passed through saline sewage pipeline 61 and connected with the liquid outlet of rear stage
Connect, the liquid outlet of afterbody is used for the saline sewage after emission treatment.
For the ease of after saline sewage heat exchange produce indirect steam enter next stage vaporizer, described inlet with described
Steam (vapor) outlet connects, and the indirect steam producing after making saline sewage heat exchange passes through steam (vapor) outlet through under indirect steam pipeline 63 entrance
One-level vaporizer device, for the thermal source of next stage vaporizer.
In the present embodiment, described desalination water waste-heat recovery device 1 is desalination water waste-heat recoverer, more than described organic steam
Heat reclamation device 2 is organic steam waste-heat recoverer, and described organic steam generating meanss 4 are organic steam generator.
Embodiment 2: in the present embodiment, there is provided a kind of organic steam drives multi-effect evaporator to process the side of saline sewage
Method, drives multi-effect evaporator to process the equipment of saline sewage using the organic steam described in embodiment 1, containing following steps:
Step one: saline sewage is sequentially entered more than desalination water waste-heat recovery device, organic steam by saline sewage pipeline
Heat reclamation device, the third evaporator of multi-effect evaporating device, second level vaporizer and first evaporator.
Step 2: add organic solution in organic steam generating meanss, produce organic steam, organic steam passes through organic
Steam pipe line enters the first evaporator of triple-effect evaporation plant, carries out heat exchange with the saline sewage entering first evaporator,
Make saline sewage produce indirect steam under condition of negative pressure, discharge the first order after the saline sewage heat exchange in first evaporator and steam
Send out device；
Step 3: the indirect steam that in first evaporator, saline sewage produces enters the second level by indirect steam pipeline
Vaporizer, and carry out heat exchange with the saline sewage entering second level vaporizer and make saline sewage produce secondary steaming under condition of negative pressure
Vapour；
Step 4: in the vaporizer of the second level saline sewage change thermogenetic indirect steam enter third evaporator and with enter
The saline sewage entering third evaporator carries out heat exchange and makes saline sewage produce indirect steam under condition of negative pressure；
Step 5: after organic steam heat exchange by organic steam pipeline enter organic steam waste-heat recovery device, and with enter
The saline sewage entering organic steam waste-heat recoverer device carries out heat exchange, and the desalination water under condensing after indirect steam heat exchange passes through light
Change water pipeline and enter desalination water waste-heat recovery device, and carry out heat exchange with entering desalination water waste-heat recovery device；
Step 6: it is organic that the organic steam after organic steam waste-heat recovery device heat exchange passes through the entrance of organic steam pipeline
Steam raising plant, the desalination water after desalination water waste-heat recovery device heat exchange discharges desalination water waste-heat recovery device.
In the present embodiment, in organic steam withdrawer add organic solution in organic media be 2,2- dichloride-
1,1,1- HFC-143a (another name r123) or iso-butane (another name r600a), process solvent borne solid using multi-effect evaporating device total
Amount tds be 6400mg/l, flow be 35.5t/h saline sewage, when saline sewage cocnentration factor require reach 20 when, r123 and
Flow required for r600a is respectively 37.10kg/s and 24.11kg/s.Using the equipment in the present embodiment method and embodiment 1
The water generation ratio (gwr) obtaining and the thermal efficiency (hsu) are respectively referring to Fig. 2 and Fig. 3.Gwr and hsu is can be seen that from Fig. 2 and Fig. 3
All ideal.
Embodiment 3: in the present embodiment, there is provided a kind of organic steam drives multi-effect evaporator to process setting of saline sewage
Standby, its structure composition and operation principle and organic steam described in embodiment 1 drive multi-effect evaporator to process setting of saline sewage
Standby essentially identical, except for the difference that, referring to Fig. 4, in order to obtain desalination water further, improve the yield of desalination water, the third level is evaporated
The steam (vapor) outlet of device 33 connects condensing units 7 by indirect steam pipeline 63, described condensing units 7 pass through to desalinate water pipeline 64 with
Described desalination water waste-heat recovery device 1 connects.In the present embodiment, described condensing units 7 are condenser, will by condenser
In third evaporator, saline sewage changes thermogenetic indirect steam and carries out condensing formation desalination water, and condenser passes through to desalinate water pipe
Line transmits the desalination water that indirect steam condensation is formed to desalination water waste-heat recovery device.
Embodiment 4:, in the present embodiment, there is provided a kind of organic steam drives multi-effect evaporator to process saline sewage
Method, drives multi-effect evaporator to process the equipment of saline sewage using the organic steam described in embodiment 3, and its step is basic and real
Apply example 2 identical, as different from Example 2, in step 5, the indirect steam that third evaporator generates is entered by condenser
Row condensation forms desalination water, and condenser passes through to desalinate water pipeline and transmits the desalination water of indirect steam condensation formation to more than desalination water
Heat reclamation device.Compared to embodiment 2, the water generation ratio in the present embodiment is higher.
Embodiment 5: in the present embodiment, referring to Fig. 5, there is provided a kind of organic steam drives multi-effect evaporator to process saliferous
Essentially identical in the equipment of sewage, its structure composition and operation principle and embodiment 1, except for the difference that, described in the present embodiment
Organic steam drive multi-effect evaporator process saline sewage equipment in, described multi-effect evaporating device is included by indirect steam
The Pyatyi vaporizer that pipeline 63 is sequentially connected in series, in addition to first evaporator 31, second level vaporizer 32, third evaporator
33rd, fourth stage vaporizer 34, level V vaporizer 35 are all connected with desalination water waste-heat recovery device 1 by desalinating water pipeline 64,
First evaporator 31 pass through organic steam pipeline 62 respectively with described organic steam waste-heat recovery device 2 and described organic steam
Generating meanss 4 connect, and level V vaporizer 33 passes through saline sewage pipeline 61 with described organic steam waste-heat recovery device 2 even
Connect.
Realize heat exchange and saline sewage for the ease of organic steam and change thermogenetic indirect steam realization with organic steam
Heat exchange, the top of every grade of vaporizer is provided with steam (vapor) outlet 36, and top is provided with steam inlet, the steam inlet of first evaporator 31
It is connected with organic steam generating meanss 4 by organic steam pipeline 62, the steam inlet of second level vaporizer 32 is by secondary steaming
Steam pipe line 63 is connected with the steam (vapor) outlet of first evaporator 31, and the steam inlet of third evaporator 33 passes through secondary steam pipe
Line 63 is connected with the steam (vapor) outlet of second level vaporizer 32, and the steam inlet of fourth stage vaporizer 34 passes through indirect steam pipeline 63
It is connected with the steam (vapor) outlet of third evaporator 33, the steam inlet of level V vaporizer 35 passes through indirect steam pipeline 63 and the
The steam (vapor) outlet of level Four vaporizer 34 connects；The bottom of every grade of vaporizer is provided with outlet, and described outlet is entered with described steam
Mouth connection.
Embodiment 6: in the present embodiment, there is provided a kind of organic steam drives multi-effect evaporator to process the side of saline sewage
Method, drives multi-effect evaporator to process the equipment of saline sewage using the organic steam described in embodiment 5, containing following steps:
Step one: saline sewage is sequentially entered more than desalination water waste-heat recovery device, organic steam by saline sewage pipeline
Heat reclamation device, the level V vaporizer of multi-effect evaporating device, fourth stage vaporizer, third evaporator, second level vaporizer
And first evaporator；
Step 2: add organic solution in organic steam generating meanss, produce organic steam, organic steam passes through organic
Steam pipe line enters the first evaporator of triple-effect evaporation plant, carries out heat exchange with the saline sewage entering first evaporator,
Make saline sewage produce indirect steam under condition of negative pressure, discharge the first order after the saline sewage heat exchange in first evaporator and steam
Send out device；
Step 3: the indirect steam that in first evaporator, saline sewage produces enters the second level by indirect steam pipeline
Vaporizer, and carry out heat exchange with the saline sewage entering second level vaporizer and make saline sewage produce secondary steaming under condition of negative pressure
Vapour；
Step 4: according to the mode in step 3, in upper level vaporizer, saline sewage changes thermogenetic indirect steam and enters
Enter next stage level vaporizer and the saline sewage with entrance next stage vaporizer carries out heat exchange and makes saline sewage under condition of negative pressure
Produce indirect steam, complete the heat exchange of indirect steam and saline sewage in remaining vaporizer at different levels；
Step 5: after organic steam heat exchange by organic steam pipeline enter organic steam waste-heat recovery device, and with enter
The saline sewage entering organic steam waste-heat recoverer device carries out heat exchange, and the desalination water under condensing after indirect steam heat exchange passes through light
Change water pipeline and enter desalination water waste-heat recovery device, and carry out heat exchange with entering desalination water waste-heat recovery device；
Step 6: it is organic that the organic steam after organic steam waste-heat recovery device heat exchange passes through the entrance of organic steam pipeline
Steam raising plant, the desalination water after desalination water waste-heat recovery device heat exchange discharges desalination water waste-heat recovery device.
In the present embodiment, the water generation ratio (gwr) of acquisition and the thermal efficiency (hsu) are even more ideal compared to embodiment 2.
Embodiment 7: in the present embodiment, there is provided a kind of organic steam drives multi-effect evaporator to process setting of saline sewage
Standby, its structure composition and operation principle and organic steam described in embodiment 5 drive multi-effect evaporator to process setting of saline sewage
Standby essentially identical, except for the difference that, referring to Fig. 6, in order to obtain desalination water further, improve the yield of desalination water, level V evaporates
The steam (vapor) outlet of device 35 connects condensing units 7 by indirect steam pipeline 63, described condensing units 7 pass through to desalinate water pipeline 64 with
Described desalination water waste-heat recovery device 1 connects.In the present embodiment, described condensing units 7 are condenser, will by condenser
In third evaporator, saline sewage changes thermogenetic indirect steam and carries out condensing formation desalination water, and condenser passes through to desalinate water pipe
Line transmits the desalination water that indirect steam condensation is formed to desalination water waste-heat recovery device.
Embodiment 8:, in the present embodiment, there is provided a kind of organic steam drives multi-effect evaporator to process saline sewage
Method, drives multi-effect evaporator to process the equipment of saline sewage using the organic steam described in embodiment 7, and its step is basic and real
Apply example 6 identical, as different from Example 6, in step 5, the indirect steam that level V vaporizer generates is entered by condenser
Row condensation forms desalination water, and condenser passes through to desalinate water pipeline and transmits the desalination water of indirect steam condensation formation to more than desalination water
Heat reclamation device.Compared to embodiment 6, the water generation ratio in the present embodiment is higher.
Above-described embodiment is used for explaining the present invention, rather than limits the invention, in spirit and the right of the present invention
In the protection domain requiring, any modifications and changes that the present invention is made, both fall within protection scope of the present invention.
Claims (10)
1. a kind of organic steam drive multi-effect evaporator process saline sewage equipment it is characterised in that include by pipeline according to
The secondary desalination water waste-heat recovery device being connected in series, organic steam waste-heat recovery device and multi-effect evaporating device, and by pipe
The organic steam generating meanss that line is connected with described organic steam waste-heat recovery device；Described multi-effect evaporating device is included by pipe
The multi-stage evaporator that line is sequentially connected in series, in addition to first evaporator, remaining vaporizer at different levels is all by pipeline and desalination water
Waste-heat recovery device connects, first evaporator pass through pipeline respectively with described organic steam waste-heat recovery device and described organic
Steam raising plant connects, and afterbody vaporizer passes through pipeline and organic steam waste-heat recovery device.
2. organic steam as claimed in claim 1 drives multi-effect evaporator to process the equipment of saline sewage it is characterised in that every
The top of level vaporizer is provided with steam (vapor) outlet, and top is provided with steam inlet, the steam inlet of first evaporator pass through pipeline with
Organic steam generating meanss connect, and the steam inlet of rear stage vaporizer is passed through pipeline and connected with the steam (vapor) outlet of previous stage vaporizer
Connect；The bottom of every grade of vaporizer is provided with outlet, and described outlet is connected with described steam inlet.
3. organic steam as claimed in claim 2 drives multi-effect evaporator to process the equipment of saline sewage it is characterised in that
The steam (vapor) outlet of rear stage vaporizer connects condensing units, described condensing units and described desalination water waste heat recovery dress by pipeline
Put connection.
4. organic steam as claimed in claim 3 drives multi-effect evaporator to process the equipment of saline sewage it is characterised in that institute
Stating condensing units is condenser.
5. organic steam as claimed in claim 2 drives multi-effect evaporator to process the equipment of saline sewage it is characterised in that every
The steam (vapor) outlet of level vaporizer all connects vacuum pump by pipeline.
6. the organic steam as described in claim 2 to 5 any one drives multi-effect evaporator to process the equipment of saline sewage, its
It is characterised by, the bottom side of every grade of vaporizer is provided with inlet, opposite side is provided with liquid outlet, the inlet of previous stage passes through pipe
Line is connected with the liquid outlet of rear stage, the liquid outlet of afterbody.
7. the organic steam as described in claim 6 any one drives multi-effect evaporator to process the equipment of saline sewage, and it is special
Levy and be, described inlet is connected with described steam (vapor) outlet.
8. the organic steam as described in claim 1 or 7 any one drives multi-effect evaporator to process the equipment of saline sewage, its
It is characterised by, described desalination water waste-heat recovery device is desalination water waste-heat recoverer, described organic steam waste-heat recovery device is
Organic steam waste-heat recoverer, described organic steam generating meanss are organic steam generator.
9. a kind of organic steam drives multi-effect evaporator to process the method for saline sewage it is characterised in that containing following steps:
Saline sewage sequentially enters desalination water waste-heat recovery device, organic steam waste-heat recovery device, multi-effect evaporating device
Rear stage vaporizer, and sequentially enter vaporizers at different levels according to the order transmitted to previous stage vaporizer from rear stage vaporizer,
Finally enter first evaporator；
Add organic solution in organic steam generating meanss, produce organic steam, organic steam enters multiple-effect by pipeline and steams
The first evaporator of transmitting apparatus, carries out heat exchange with the saline sewage entering first evaporator, makes saline sewage in negative pressure bar
Produce indirect steam under part, after the saline sewage heat exchange in first evaporator, discharge first evaporator；
The indirect steam that in first evaporator, saline sewage produces enters second level vaporizer by pipeline, and with entrance second
The saline sewage of level vaporizer carries out heat exchange makes saline sewage produce indirect steam under condition of negative pressure；
According to above-mentioned same mode, in upper level vaporizer, saline sewage changes thermogenetic indirect steam and enters next stage evaporation
Device simultaneously carries out heat exchange and makes saline sewage produce indirect steam under condition of negative pressure with the saline sewage entering next stage vaporizer, complete
Become the heat exchange of indirect steam and saline sewage in remaining vaporizer at different levels；
After organic steam heat exchange by pipeline enter organic steam waste-heat recovery device, and with enter organic steam waste-heat recoverer
The saline sewage of device carries out heat exchange, and the desalination water under condensing after indirect steam heat exchange enters desalination water waste heat recovery by pipeline
Device, and carry out heat exchange with entering desalination water waste-heat recovery device；
Organic steam after organic steam waste-heat recovery device heat exchange enters organic steam generating meanss by pipeline, through desalination
Desalination water after water waste-heat recovery device heat exchange discharges desalination water waste-heat recovery device.
10. organic steam as claimed in claim 9 drive multi-effect evaporator process saline sewage method it is characterised in that
In afterbody vaporizer saline sewage produce indirect steam cool down in condensing units after by pipeline entrance desalination water more than
Heat reclamation device.
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| CN201610909466.2A CN106335952A (en) | 2016-10-19 | 2016-10-19 | Device and method for utilizing organic steam to drive multi-effect evaporator to treat salt-containing sewage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610909466.2A CN106335952A (en) | 2016-10-19 | 2016-10-19 | Device and method for utilizing organic steam to drive multi-effect evaporator to treat salt-containing sewage |
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| CN111760309A (en) * | 2020-07-08 | 2020-10-13 | 袁东立 | High-efficient solution enrichment facility suitable for energy tower system |
| CN113856579A (en) * | 2021-08-16 | 2021-12-31 | 纽威科技(长沙)有限公司 | Heat exchange process and system for treating liquid substance |
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