CN107697970A - The switching of refrigerating medium unit drives multigroup icing desalination pond - Google Patents
The switching of refrigerating medium unit drives multigroup icing desalination pond Download PDFInfo
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- CN107697970A CN107697970A CN201711005881.6A CN201711005881A CN107697970A CN 107697970 A CN107697970 A CN 107697970A CN 201711005881 A CN201711005881 A CN 201711005881A CN 107697970 A CN107697970 A CN 107697970A
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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
- C02F1/22—Treatment of water, waste water, or sewage by freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for 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
- 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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Abstract
A kind of refrigerating medium unit switching drives multigroup icing desalination pond：Refrigerating medium unit drives icing, separation, concentration, the ice-melt samsara in multigroup icing desalination pond by cooling loop, heat supplying loop, switching, extracts the icing cold of one group of cold and hot comb, ice-melt heat, realization device internal thermal equilibrium are provided for another group of cold and hot comb；Formed and synchronously frozen up and down by the centrifugation dual with ice-melt, icing and gravitational separation that alternately freezes, cold and hot comb bottom in and top out, realize that feed liquid concentration is produced with fresh water.Cold can be discharged by fresh water coil pipe and concentrate coil pipe centralized recovery, also can discharge condenser heat with fresh water, also environment cold can be absorbed by heat exchanger.
Description
First, technical field
The present invention relates to a kind of switching of refrigerating medium unit to drive multigroup icing desalination pond, and it carries out salt solution using principle refrigeration
Concentration, can be widely applied to desalinization, food processing, beverage production, sewage disposal, clean water treatment, sewerage disposing, chemical industry row
The technical fields such as industry, household water purifying, commercial Water warfare.
2nd, background technology
Freezing sea water desalinating unit：When being frozen using seawater freezing, the floating of fresh water and with the salt solution after enrichment according to weight
Force stratification, icing, then it is fresh water that ice sheet, which is melted, and realize desalinization.Freezing sea water desalinating unit can be divided into naturally again
Icing method and artificial two kinds of icing method, are both among research.
The advantages of freezing sea water desalinating unit, is as follows：
1st, because the chemical liveness flex point of water is 60 DEG C, therefore using the freezing of less than 0 DEG C separation concentration, so that it may have
Effect processing highly corrosive solution or heat sensitive material；2nd, technique is implemented in open system, a series of so as to avoid vacuumizing etc.
Complex techniques process；3rd, because refrigerant density is higher, and the icing latent heat of water only has the 1/7 of its latent heat of vaporization so that freezing
The freezing unit investment of method, the unit investment compared to the way of distillation reduces half, while also equal proportion reduces its operation expense.
Further applied however, the shortcomings that freezing sea water desalinating unit also restricts it：
1st, it is difficult to reclaim icing latent heat, ice-melt latent heat, takes fresh water and discharge salt solution sensible heat, so that device driving is cold
Amount is up to 93kW*h/t, device driving power consumption is up to 47kW*h/t；
2nd, it is press steam distillation method sea water desalinating unit 4 times because the driving power consumption of device fresh water per ton is 47kW*h/t,
Therefore the raising and the shortening of payoff period of its economy are limited；
3rd, freezing sea water desalinating unit belongs to large scale industry freezing equipment, it is difficult to realizes miniaturization, electrification of domestic.
3rd, the content of the invention
The object of the invention：Refrigerating medium unit drives the knot in multigroup icing desalination pond by cooling loop, heat supplying loop, switching
Ice, separation, concentration, ice-melt samsara, the icing cold of one group of cold and hot comb is extracted, ice-melt heat is provided for another group of cold and hot comb
Amount, realization device internal thermal equilibrium；By alternately freezing and the dual centrifugation of ice-melt, icing and gravitational separation, cold and hot comb
Bottom in and top out is formed synchronously freezes up and down, realizes that feed liquid concentration is produced with fresh water.Fresh water reheat coils and concentrate in feed liquid pond
Discharge cold in the multigroup icing desalination pond of reheat coils centralized recovery.Winter is absorbed environment cold by heat exchanger and transported with energy saver mode
OK, summer discharges condenser waste heat by fresh water heat release loop.It is the product transboundary for freezing industry and desalinization industry.
Multigroup icing desalination pond is driven according to the refrigerating medium unit switching shown in accompanying drawing 1, it is by 1- evaporators；2- compresses
Machine；3- oil eliminators；4- condensers；5- economizers；6- devices for drying and filtering；7- expansion valves；8- hand-operated valves；9- oil coolers；10-
Oil strainer；11- flow switches；12- magnetic valves；13- economizer expansion valves；14-1- cooling magnetic valves；14-2- returns cold electromagnetism
Valve；15- inhales cold heat exchanger；15-1- inhales cold magnetic valve；The cold and hot combs of 16-；17- cooling circulating pumps；18-1- heat supply magnetic valves；
18-2- backheat magnetic valves；19- inhales heat release cooling tower；19-1- inhales heat release magnetic valve；20- heat circulation pumps；21- icing desalinations
Pond；21-1- liquor inlet；21-2- liquid-level switches；21-3- desalinations pond exports；21-4- heat-insulation layers；21-5- temperature switches；21-
6- concentrates liquid electromagnetic valve；21-7- fresh water magnetic valves；22- concentrate reheat coils；23- fresh water reheat coils；24- feed liquids pond；
25- feed pumps；26- feed liquid flow control valves；27- fresh water；27-1- fresh water backheat valves；27-2- fresh water heat release valves；28- concentrates
Composition, it is characterised in that：
The top gaseous refrigerant outlet of evaporator 1 connects compressor 2, oil eliminator 3, the refrigerant of condenser 4 by pipeline
Side, device for drying and filtering 6, economizer 5 cross cold side, economizer threeway, hydrojet threeway, expansion valve 7, the bottom liquid refrigeration of evaporator 1
Agent import, form refrigeration cycle；
The top gaseous refrigerant outlet tube outer surface of evaporator 1 sets the aperture of temperature-sensitive bag closed-loop control expansion valve 7, and swollen
The outlet of swollen valve 7 connects the bottom liquid refrigerant inlet of evaporator 1 by pipeline, and composition evaporator refrigerant expansion controls back
Road；
The bottom oil-out of oil eliminator 3 connects hand-operated valve 8, the oil cooling side of oil cooler 9, oil strainer 10, stream by pipeline
Amount switch 11, magnetic valve 12, hand-operated valve 8, the oil return opening of compressor 2, composition oil cooling heat release loop；
Economizer threeway, economizer expansion valve 13, the evaporation side of economizer 5, magnetic valve 12, hand-operated valve 8, the tonifying Qi of compressor 2
Mouthful, composition compressor tonifying Qi loop；
The top gaseous refrigerant outlet tube outer surface of economizer 5 sets opening for temperature-sensitive bag closed-loop control economizer expansion valve 13
Degree, and the outlet of economizer expansion valve 13 connects the bottom liquid refrigerant inlet of economizer 5 by pipeline, forms economizer refrigeration
Agent expands control loop；
Hydrojet threeway, magnetic valve 12, hand-operated valve 8, compressor liquid-spraying mouth, composition motor Liquid injection cooling loop；
The outlet of the refrigerating medium of evaporator 1 is connected feed flow main with import and returns liquid main respectively, and passes through multipair threeway and branch
Road cooling magnetic valve 14-1 and time cold magnetic valve 14-2 is connected in parallel cold and hot with the middle part in the multigroup icing desalination pond 21 of switching control
Comb 16, and cooling circulating pump 17, composition refrigerating medium cooling loop are set returning liquid main；
The outlet of the refrigerating medium of condenser 4 is connected feed flow main, oil cooler 9 with import and returns liquid main respectively, and by more
To threeway and branch road heat supply magnetic valve 18-1 and backheat magnetic valve 18-2 is connected in parallel and the multigroup icing desalination pond 21 of switching control
The cold and hot comb 16 in middle part, and return liquid main set heat circulation pump 20, form refrigerating medium heat supplying loop；
Icing desalination pond 21 is upper mast, the container of bottom taper, crown center setting liquor inlet 21-1, in top
Wall setting liquid-level switch 21-2, bosom arrange horizontal, bottom in and top out cold and hot comb 16 to utilize icing and gravity simultaneously
Lamination forms efficiently separating for fresh water and salt solution, and interior bottom portion is then the sinking after feed liquid separation, enriched layer, bottom cone
Shape center sets desalination pond outlet 21-3, the outer wall parcel heat-insulation layer 21-4 in icing desalination pond 21；
The import of cold and hot comb 16 connects cooling magnetic valve 14-1 and heat supply magnetic valve 18-1, cold and hot row by liquid inlet tee joint
The outlet of pipe 16 connects back to cold magnetic valve 14-2 and backheat magnetic valve 18-2 by goes out liquid threeway, forms the icing of cold and hot comb 16
With ice-melt switching circuit；
Desalination pond exports 21-3 and connects diversion three-way, concentration liquid electromagnetic valve 21-6, threeway of confluxing, feed liquid pond 24 by pipeline
The concentrate reheat coils 22 of middle bottom in and top out, form concentrate backheat warm-up circuit；
Desalination pond exports 21-3 and connected by pipeline in diversion three-way, fresh water magnetic valve 21-7, threeway of confluxing, feed liquid pond 24
The fresh water reheat coils 23 of bottom in and top out, fresh water backheat valve 27-1, form fresh water backheat warm-up circuit；
Desalination pond exports 21-3 and connects diversion three-way, fresh water magnetic valve 21-7, threeway of confluxing, fresh water heat release valve by pipeline
27-2, composition fresh water heat release loop；
Feed pump 25 passes through the outlet at bottom, diversion three-way, feed liquid flow control valve 26 of pipeline binder liquid pool 24, composition
Feed liquid precooling cooling loop；
The outer wall parcel heat-insulation layer 21-4 in feed liquid pond 24；
The shell of icing desalination pond 21 is vertically disposed square or circular cylinder, and its upper inside wall sets liquid-level switch 21-
2, according to the aperture of the liquid level signal closed-loop control feed liquid flow control valve 26 of feed liquid, composition icing desalination pond feed liquid Liquid level
Loop；
The middle part inwall in icing desalination pond 21 sets temperature switch 21-5, with switching control cooling magnetic valve 14-1 and heat supply
Magnetic valve 18-1 switch, the switching icing in composition icing desalination pond and ice-melt loop.
Threeway of confluxing is set on the refrigerating medium of evaporator 1 outlet feed flow main, import is returned on liquid main and sets diversion three-way, point
Flow threeway and connected by pipeline and inhale cold heat exchanger 15, inhale cold magnetic valve 15-1, threeway of confluxing, composition inhales cold loop.
Diversion three-way is set on the feed flow main of the refrigerating medium of condenser 4 outlet connection, and returning on liquid main for import connection is set
Threeway of confluxing is put, diversion three-way is connected by pipeline to be inhaled heat release magnetic valve 19-1, inhales heat release cooling tower 19, threeway of confluxing, composition
Inhale heat release loop.
What is handled in feed liquid pond 24 is seawater, or municipal middle water, or municipal sewage, or salt solution, or sour water, or
It is buck, or organic solution, or inorganic solution, or industrial wastewater, or mine bitter, or oilfield sewage, or
It is one kind in chemical engineering sewage.
The operation principle combination accompanying drawing 1 of the present invention is described as follows：
1st, icing, separation, concentration, the ice-melt samsara in icing desalination pond：One refrigerating medium unit switching drives multigroup icing
Desalination pond：Refrigerating medium unit, cooling circulating pump 17, heat circulation pump 20 are run, then according in multigroup icing desalination pond 21 one
The liquid-level switch 21-2 in group icing desalination pond 21, opens its feed liquid flow control valve 26, so that the feed liquid after precooling cooling is by expecting
Liquid pump 25 drives, and is flowed into through its top liquor inlet 21-1 in the group icing desalination pond 21, until liquid level reaches its upper inside wall
Liquid-level switch 21-2 setting value, to be saturated with the cold and hot comb 16 in the middle part of it；Its cooling electromagnetism is opened by temperature switch 21-5 again
Valve 14-1, cold magnetic valve 14-2 is returned, close its heat supply magnetic valve 18-1, backheat magnetic valve 18-2, switch its cold and hot comb 16
To -30 DEG C of refrigerating medium cooling loops, make the depth in the fresh water foundation icing desalination pond 21 outside pipe in feed liquid to discharge evaporator cold
Degree distribution, and the adverse current Temperature Distribution that the bottom in and top out of cold and hot comb 16 is formed, and synchronously freeze to turn into ice sheet up and down, and with
Gravitational separation collective effect and the concentrate 28 that efficiently separates out then sinks to its bottom taper space, be then turned on concentrating liquid electromagnetic valve
21-6 is to enter under being exported through desalination pond in 21-3, diversion three-way, concentration liquid electromagnetic valve 21-6, threeway of confluxing, feed liquid pond 24 downwards
On the concentrate reheat coils 22 that go out, and drain concentrate 28, to reclaim feed liquid sensible heat while heat up, precooling cooling is mended
Temperature needed for charge liquid to icing；It is then shut off concentrating liquid electromagnetic valve 21-6, opens its heat supply magnetic valve 18-1, backheat magnetic valve
18-2, close its cooling magnetic valve 14-1, return cold magnetic valve 14-2, its cold and hot comb 16 is switched to 5 DEG C of refrigerating medium heat supplies and return
Road, ice sheet thawing outside pipe is turned into fresh water to discharge condenser heat, be then turned on fresh water magnetic valve 21-7 with downwards through desalination pond
Export 21-3, diversion three-way, fresh water magnetic valve 21-7, threeway of confluxing, fresh water reheat coils 23 of bottom in and top out in feed liquid pond 24,
Fresh water backheat valve 27-1, and ice-melt fresh water 27 is drained, so that while recovery feed liquid sensible heat heats up, precooling cooling supplements feed liquid
To temperature needed for icing；So as to realize the samsara of the icing of feed liquid in the group icing desalination pond 21, separation, concentration, ice-melt.
2nd, switching drives multigroup icing desalination pond：One refrigerating medium unit passes through cooling loop, heat supplying loop and multigroup
Freeze and ice-melt switching circuit, switching drives the samsara in icing, separation, concentration, deicing processes of multigroup icing desalination pond 21, carries
The icing cold of one group of cold and hot comb 16 is taken, is that another group of cold and hot comb 16 provides ice-melt heat, realization device internal thermal equilibrium；
Formed by the centrifugation dual with ice-melt, icing and gravitational separation that alternately freezes, the bottom in and top out of cold and hot comb 16 synchronous up and down
Freeze, realize that feed liquid concentration is produced with fresh water.Fresh water reheat coils 23 are concentrated back with concentrate reheat coils 22 in feed liquid pond 24
Receive multigroup icing desalination pond 21 and discharge cold.To reduce device loss of refrigeration capacity, each group icing desalination pond 21 and feed liquid pond 24
Outer wall be both needed to wrap up heat-insulation layer 21-4.
3rd, winter absorbs environment cold by heat exchanger：Refrigerating medium compressor emergency shutdown, and open and inhale cold magnetic valve 15-1 and run
Inhale cold heat exchanger 15 and absorb environment cold, unlatching, which inhales heat release magnetic valve 19-1 and runs suction heat release cooling tower 19, absorbs ambient heat
Amount；Change and provide cold by suction cold heat exchanger 15 for refrigerating medium cooling loop, change and returned by suction heat release cooling tower 19 for refrigerating medium heat supply
Road provides heat, and switches the multigroup icing desalination pond of driving, and the icing of feed liquid, separation, concentration, ice-melt wheel are realized with energy saver mode
Return.
4th, summer fresh water release condensation heat extraction：In the deicing processes in icing desalination pond 21, the cold and hot release of comb 16 condensation
Device heat makes the outer ice sheet of pipe melt as after fresh water, can also continue to absorption condensation heat and heats up, is then turned on fresh water magnetic valve 21-
7 through desalination pond to export 21-3, diversion three-way, fresh water magnetic valve 21-7, threeway of confluxing, fresh water heat release valve 27-2 downwards, and arranges
Heating fresh water 27 to the greatest extent after ice-melt, so as to discharge condenser waste heat by fresh water heat release loop.
5th, kind of refrigeration cycle：The low pressure superheated gaseous refrigerant at the top of evaporator 1 is collapsed into high pressure superheater gas by compressor 2
State refrigerant, then after the separation of oil eliminator 3, being sent into the condensation of the refrigerant side of condenser 4 turns into high pressure sub-cooled liquid refrigerant,
Flow through device for drying and filtering 6, economizer 5 crosses cold side, economizer threeway, hydrojet threeway, then expanded valve 7 and throttles and turn into low pressure two
Phase refrigerant, the bottom refrigerant inlet of evaporator 1 is back flowed back into, to complete kind of refrigeration cycle.
6th, refrigerant heat absorption evaporation：The temperature-sensitive that the top low pressure superheated gaseous refrigerant outlet tube outer surface of evaporator 1 is set
The aperture of bag closed-loop control expansion valve 7, so that low pressure two phase refrigerant flows through bottom refrigerant inlet, evaporator 1 from bottom to up
Horizontal heat exchange tube on the inside of, dry type evaporation turns into low pressure superheated gaseous refrigerant, and from top exit outflow；It is simultaneously cold evaporating
Amount is supplied to the cold and hot comb 16 in each group icing desalination pond 21 by refrigerating medium cooling loop switch, to provide icing latent heat.
7th, refrigerant exothermic condensation：The high pressure superheated gaseous refrigerant that compressor 2 is discharged flows into cold through oil eliminator 3
The tube side of condenser 4, wherein releasing by parts go out to overheat sensible heat, condensation latent heat, supercooling sensible heat, and condensing turns into high pressure supercooled liquid system
Cryogen, and flowed out from outlet at bottom；Condenser heat is supplied to each group icing desalination by the switching of refrigerating medium heat supplying loop simultaneously
Cold and hot comb 16 in pond 21, to provide ice-melt latent heat.
8th, oil cooling heat release：Through oil eliminator 3 it is separated go out compressor high temperature grease, flow through its bottom according to pressure difference and go out
Hydraulic fluid port, hand-operated valve 8, the oil cooling side of oil cooler 9, oil strainer 10, flow switch 11, magnetic valve 12, hand-operated valve 8, compressor 2 return
Hydraulic fluid port, to cool after discharging its sensible heat, while but sensible heat is released to refrigerating medium heat supplying loop oil cooling.
9th, economizer heat release is subcooled：The high pressure sub-cooled liquid refrigerant that condensator outlet gives off, flows through device for drying and filtering
6th, economizer 5 crosses cold side, is cooled with discharging supercooling after its sensible heat；And a part is by economizer threeway, economizer expansion valve 13
Throttling after flow into the evaporation side of economizer 5, press through hot gaseous refrigerant in turning into evaporation of absorbing heat, and by magnetic valve 12, manually
Valve 8 flows into the gas supplementing opening of compressor 2, to realize the Gas-supplying enthalpy-increasing of compressor 2.
Therefore compared with existing freezing sea water desalinating unit, the technology of the present invention advantage is as follows：
For refrigerating medium unit by cooling loop, heat supplying loop, switching drives the icing in multigroup icing desalination pond, separation, dense
Contracting, ice-melt samsara, the icing cold of one group of cold and hot comb is extracted, ice-melt heat, realization device are provided for another group of cold and hot comb
Internal thermal equilibrium；Formed by the centrifugation dual with ice-melt, icing and gravitational separation that alternately freezes, cold and hot comb bottom in and top out
Synchronously freeze up and down, realize that feed liquid concentration is produced with fresh water.Fresh water reheat coils are concentrated with concentrate reheat coils in feed liquid pond
Reclaim multigroup icing desalination pond and discharge cold.Winter is absorbed environment cold by heat exchanger and run with energy saver mode, and summer passes through
Fresh water heat release loop discharges condenser waste heat.It is the product transboundary for freezing industry and desalinization industry.
4th, illustrate
Accompanying drawing 1 is system flow chart of the invention.
As shown in Figure 1, wherein：1- evaporators；2- compressors；3- oil eliminators；4- condensers；5- economizers；6- is done
Dry filter；7- expansion valves；8- hand-operated valves；9- oil coolers；10- oil strainers；11- flow switches；12- magnetic valves；13- is passed through
Help device expansion valve；14-1- cooling magnetic valves；14-2- returns cold magnetic valve；15- inhales cold heat exchanger；15-1- inhales cold magnetic valve；16-
Cold and hot comb；17- cooling circulating pumps；18-1- heat supply magnetic valves；18-2- backheat magnetic valves；19- inhales heat release cooling tower；19-1-
Inhale heat release magnetic valve；20- heat circulation pumps；21- icing desalinations pond；21-1- liquor inlet；21-2- liquid-level switches；21-3- takes off
Salt pond exports；21-4- heat-insulation layers；21-5- temperature switches；21-6- concentrates liquid electromagnetic valve；21-7- fresh water magnetic valves；22- is concentrated
Liquid reheat coils；23- fresh water reheat coils；24- feed liquids pond；25- feed pumps；26- feed liquid flow control valves；27- fresh water；27-
1- fresh water backheat valves；27-2- fresh water heat release valves；28- concentrates.
5th, embodiment
Refrigerating medium unit switching proposed by the present invention drives multigroup icing desalination pond embodiment as shown in Figure 1, now illustrates
It is as follows：The switching of refrigerating medium unit drives multigroup icing desalination pond, and it is by horizontally disposed, refrigerating capacity 186kW, red copper heat exchanger tube steaming
Send out device 1；Inspiratory flow 125m3/h compressor 2；The oil eliminator 3 of oily separative efficiency 98%；Diameter 350mm/ length
2000mm/ heating capacities 251kW condenser 4；Cross cold 25kW economizer 5；Interface diameter 19mm/ wall thickness 1mm red copper is done
Dry filter 6；Interface diameter 19mm/ wall thickness 1mm red copper heating power expansion valve 7；Interface diameter 9.52mm/ wall thickness 0.52mm purple
Copper hand-operated valve 8；Interface diameter 9.52mm/ wall thickness 0.52mm/ amount of cooling water 9kW stainless steel oil cooler 9；Interface diameter
9.52mm/ wall thickness 0.52mm red copper oil strainer 10；Interface diameter 9.52mm/ wall thickness 0.52mm red copper flow switch 11；
Interface diameter 9.52mm/ wall thickness 0.52mm red copper magnetic valve 12；Interface diameter 9.52mm/ wall thickness 0.52mm red copper economizer
Expansion valve 13；Interface diameter 100mm/ wall thickness 2mm stainless steel cooling magnetic valve 14-1；Interface diameter 100mm/ wall thickness 2mm's
Stainless steel returns cold magnetic valve 14-2；Inhale cold 186kW suction cold heat exchanger 15；Interface diameter 200mm/ wall thickness 2mm stainless steel
Inhale cold magnetic valve 15-1；The diameter 19mm/ wall thickness 1mm/ heat exchange amounts 47kW cold and hot comb 16 of stainless steel；Flow 25t/h, lift
15mH2O cooling circulating pump 17；Interface diameter 100mm/ wall thickness 2mm stainless steel heat supply magnetic valve 18-1；Interface diameter
100mm/ wall thickness 2mm stainless steel backheat magnetic valve 18-2；Heat exchange amount 251kW suction heat release cooling tower 19；Interface diameter
200mm/ wall thickness 2mm stainless steel inhales heat release magnetic valve 19-1；Flow 50t/h, lift 15mH2O heat circulation pump 20；4 groups
Length of side 1000mm square icing desalination pond 21；Diameter 150mm/ wall thickness 2mm/ height 50mm stainless steel tube liquor inlet
21-1；Control elevation 100mm molten stainless steel bit switch 21-2；Diameter 100mm/ wall thickness 2mm/ length 100mm stainless steel tube
Desalination pond exports 21-3；Thickness 100mm PE heat-insulation layers 21-4；- 50 DEG C to 50 DEG C of temperature switch 21-5；Interface diameter
100mm/ wall thickness 2mm/ length 150mm stainless steel concentration liquid electromagnetic valve 21-6；Interface diameter 100mm/ wall thickness 2mm/ length
150mm stainless steel fresh water magnetic valve 21-7；Backheat amount 93kW concentrate reheat coils 22；Backheat amount 93kW fresh water backheat
Coil pipe 23；20 DEG C of inlet temperature, flow 4.8t/h, concentration 40000ppm salt solution in feed liquid pond 24；Flow 4.8t/h, lift
15mH2O feed pump 25；Interface diameter 100mm/ wall thickness 2mm/ length 250mm stainless steel feed liquid flow control valve 26；Outlet
15 DEG C of temperature, flow 2.4t/h, concentration 100ppm fresh water 27；Interface diameter 200mm/ wall thickness 2mm/ length 150mm's is stainless
Steel fresh water backheat valve 27-1；Interface diameter 200mm/ wall thickness 2mm/ length 150mm stainless steel fresh water heat release valve 27-2；Outlet temperature
15 DEG C of degree, flow 2.4t/h, concentration 80000ppm salt solution 28.
The top gaseous refrigerant outlet of evaporator 1 connects compressor 2, oil eliminator 3, the refrigerant of condenser 4 by pipeline
Side, device for drying and filtering 6, economizer 5 cross cold side, economizer threeway, hydrojet threeway, expansion valve 7, the bottom liquid refrigeration of evaporator 1
Agent import, form refrigeration cycle；
The top gaseous refrigerant outlet tube outer surface of evaporator 1 sets the aperture of temperature-sensitive bag closed-loop control expansion valve 7, and swollen
The outlet of swollen valve 7 connects the bottom liquid refrigerant inlet of evaporator 1 by pipeline, and composition evaporator refrigerant expansion controls back
Road；
The bottom oil-out of oil eliminator 3 connects hand-operated valve 8, the oil cooling side of oil cooler 9, oil strainer 10, stream by pipeline
Amount switch 11, magnetic valve 12, hand-operated valve 8, the oil return opening of compressor 2, composition oil cooling heat release loop；
Economizer threeway, economizer expansion valve 13, the evaporation side of economizer 5, magnetic valve 12, hand-operated valve 8, the tonifying Qi of compressor 2
Mouthful, composition compressor tonifying Qi loop；
The top gaseous refrigerant outlet tube outer surface of economizer 5 sets opening for temperature-sensitive bag closed-loop control economizer expansion valve 13
Degree, and the outlet of economizer expansion valve 13 connects the bottom liquid refrigerant inlet of economizer 5 by pipeline, forms economizer refrigeration
Agent expands control loop；
Hydrojet threeway, magnetic valve 12, hand-operated valve 8, compressor liquid-spraying mouth, composition motor Liquid injection cooling loop；
The outlet of the refrigerating medium of evaporator 1 is connected feed flow main with import and returns liquid main respectively, and passes through multipair threeway and branch
Road cooling magnetic valve 14-1 and time cold magnetic valve 14-2 is connected in parallel cold and hot with the middle part in the multigroup icing desalination pond 21 of switching control
Comb 16, and cooling circulating pump 17, composition refrigerating medium cooling loop are set returning liquid main；
The outlet of the refrigerating medium of condenser 4 is connected feed flow main, oil cooler 9 with import and returns liquid main respectively, and by more
To threeway and branch road heat supply magnetic valve 18-1 and backheat magnetic valve 18-2 is connected in parallel and the multigroup icing desalination pond 21 of switching control
The cold and hot comb 16 in middle part, and return liquid main set heat circulation pump 20, form refrigerating medium heat supplying loop；
Icing desalination pond 21 is upper mast, the container of bottom taper, crown center setting liquor inlet 21-1, in top
Wall setting liquid-level switch 21-2, bosom arrange horizontal, bottom in and top out cold and hot comb 16 to utilize icing and gravity simultaneously
Lamination forms efficiently separating for fresh water and salt solution, and interior bottom portion is then the sinking after feed liquid separation, enriched layer, bottom cone
Shape center sets desalination pond outlet 21-3, the outer wall parcel heat-insulation layer 21-4 in icing desalination pond 21；
The import of cold and hot comb 16 connects cooling magnetic valve 14-1 and heat supply magnetic valve 18-1, cold and hot row by liquid inlet tee joint
The outlet of pipe 16 connects back to cold magnetic valve 14-2 and backheat magnetic valve 18-2 by goes out liquid threeway, forms the icing of cold and hot comb 16
With ice-melt switching circuit；
Desalination pond exports 21-3 and connects diversion three-way, concentration liquid electromagnetic valve 21-6, threeway of confluxing, feed liquid pond 24 by pipeline
The concentrate reheat coils 22 of middle bottom in and top out, form concentrate backheat warm-up circuit；
Desalination pond exports 21-3 and connected by pipeline in diversion three-way, fresh water magnetic valve 21-7, threeway of confluxing, feed liquid pond 24
The fresh water reheat coils 23 of bottom in and top out, fresh water backheat valve 27-1, form fresh water backheat warm-up circuit；
Desalination pond exports 21-3 and connects diversion three-way, fresh water magnetic valve 21-7, threeway of confluxing, fresh water heat release valve by pipeline
27-2, composition fresh water heat release loop；
Feed pump 25 passes through the outlet at bottom, diversion three-way, feed liquid flow control valve 26 of pipeline binder liquid pool 24, composition
Feed liquid precooling cooling loop；
The outer wall parcel heat-insulation layer 21-4 in feed liquid pond 24；
The shell of icing desalination pond 21 is vertically disposed square or circular cylinder, and its upper inside wall sets liquid-level switch 21-
2, according to the aperture of the liquid level signal closed-loop control feed liquid flow control valve 26 of feed liquid, composition icing desalination pond feed liquid Liquid level
Loop；
The middle part inwall in icing desalination pond 21 sets temperature switch 21-5, with switching control cooling magnetic valve 14-1 and heat supply
Magnetic valve 18-1 switch, the switching icing in composition icing desalination pond and ice-melt loop.
Threeway of confluxing is set on the refrigerating medium of evaporator 1 outlet feed flow main, import is returned on liquid main and sets diversion three-way, point
Flow threeway and connected by pipeline and inhale cold heat exchanger 15, inhale cold magnetic valve 15-1, threeway of confluxing, composition inhales cold loop.
Diversion three-way is set on the feed flow main of the refrigerating medium of condenser 4 outlet connection, and returning on liquid main for import connection is set
Threeway of confluxing is put, diversion three-way is connected by pipeline to be inhaled heat release magnetic valve 19-1, inhales heat release cooling tower 19, threeway of confluxing, composition
Inhale heat release loop.
What is handled in feed liquid pond 24 is seawater.
Economic index in the embodiment of the present invention：
1st, after taking fresh water due to recovery icing cold, offer ice-melt heat, recovery and discharge salt solution sensible heat so that freeze
The maximum drive power consumption of process unit fresh water per ton is reduced to 13kW*h/t, maintains an equal level with pressure steam distillation method sea water desalinating unit；
2nd, winter can make full use of environment cold to drive, so that the average of the whole year power consumption of device is reduced to pressure steam distillation
The half of method sea water desalinating unit；
3rd, the investment of refrigerating medium unit is reduced to the half of multi-effect distilling technique so that device is daily, fresh water capacity per ton
Initial cost from existing process $10000/ (t/d) Jiang Dizhi $5000/ (t/d)；
4th, plant running economy greatly improves, and payoff period significantly shortens.
Claims (4)
1. a kind of refrigerating medium unit switching drives multigroup icing desalination pond, it is by evaporator (1)；Compressor (2)；Oil eliminator
(3)；Condenser (4)；Economizer (5)；Device for drying and filtering (6)；Expansion valve (7)；Hand-operated valve (8)；Oil cooler (9)；Oil filtering
Device (10)；Flow switch (11)；Magnetic valve (12)；Economizer expansion valve (13)；Cooling magnetic valve (14-1)；Return cold magnetic valve
(14-2)；Inhale cold heat exchanger (15)；Inhale cold magnetic valve (15-1)；Cold and hot comb (16)；Cooling circulating pump (17)；Heat supply magnetic valve
(18-1)；Backheat magnetic valve (18-2)；Inhale heat release cooling tower (19)；Inhale heat release magnetic valve (19-1)；Heat circulation pump (20)；Knot
Ice desalination pond (21)；Liquor inlet (21-1)；Liquid-level switch (21-2)；Desalination pond exports (21-3)；Heat-insulation layer (21-4)；Temperature
Switch (21-5)；Concentrate liquid electromagnetic valve (21-6)；Fresh water magnetic valve (21-7)；Concentrate reheat coils (22)；Fresh water backheat disk
Manage (23)；Feed liquid pond (24)；Feed pump (25)；Feed liquid flow control valve (26)；Fresh water (27)；Fresh water backheat valve (27-1)；It is light
Water heat release valve (27-2)；Concentrate (28) forms, it is characterised in that：Gaseous refrigerant outlet passes through pipeline at the top of evaporator (1)
Connect compressor (2), oil eliminator (3), condenser (4) refrigerant side, device for drying and filtering (6), economizer (5) and cross cold side, warp
The threeway of Ji device, hydrojet threeway, expansion valve (7), evaporator (1) bottom liquid refrigerant inlet, form refrigeration cycle；Evaporation
The aperture of gaseous refrigerant outlet tube outer surface setting temperature-sensitive bag closed-loop control expansion valve (7) at the top of device (1), and expansion valve (7)
Outlet pass through pipeline connect evaporator (1) bottom liquid refrigerant inlet, composition evaporator refrigerant expansion control loop；Oil
Separator (3) bottom oil-out connects hand-operated valve (8), oil cooler (9) oil cooling side, oil strainer (10), flow by pipeline
Switch (11), magnetic valve (12), hand-operated valve (8), compressor (2) oil return opening, composition oil cooling heat release loop；Economizer threeway, warp
Help device expansion valve (13), economizer (5) evaporation side, magnetic valve (12), hand-operated valve (8), compressor (2) gas supplementing opening, composition compression
Machine tonifying Qi loop；Gaseous refrigerant outlet tube outer surface sets temperature-sensitive bag closed-loop control economizer expansion valve at the top of economizer (5)
(13) aperture, and the outlet of economizer expansion valve (13) connects economizer (5) bottom liquid refrigerant inlet, group by pipeline
Control loop is expanded into economized refrigerant；Hydrojet threeway, magnetic valve (12), hand-operated valve (8), compressor liquid-spraying mouth, composition electricity
Machine Liquid injection cooling loop；The outlet of evaporator (1) refrigerating medium is connected feed flow main with import and returns liquid main respectively, and by multipair
Threeway and branch road cooling magnetic valve (14-1) are connected in parallel and the multigroup icing desalination pond of switching control with returning cold magnetic valve (14-2)
(21) the cold and hot comb in middle part (16), and cooling circulating pump (17), composition refrigerating medium cooling loop are set returning liquid main；Condensation
The outlet of device (4) refrigerating medium is connected feed flow main, oil cooler 9 with import and returns liquid main respectively, and passes through multipair threeway and branch
Road heat supply magnetic valve (18-1) is connected in parallel in icing desalination pond (21) multigroup with switching control with backheat magnetic valve (18-2)
The cold and hot comb in portion (16), and heat circulation pump (20) is set returning liquid main, form refrigerating medium heat supplying loop；Icing desalination pond
(21) it is upper mast, the container of bottom taper, crown center sets liquor inlet (21-1), and upper inside wall sets liquid-level switch
(21-2), bosom arrangement level, the cold and hot comb (16) of bottom in and top out act on shape with while using icing and gravitational separation
Into efficiently separating for fresh water and salt solution, and interior bottom portion is then the sinking after feed liquid separation, enriched layer, and taper center in bottom is set
Desalination pond exports (21-3), the outer wall parcel heat-insulation layer (21-4) in icing desalination pond (21)；The import of cold and hot comb (16) passes through
Liquid inlet tee joint connection cooling magnetic valve (14-1) and heat supply magnetic valve (18-1), the outlet of cold and hot comb (16) pass through goes out liquid threeway
Cold magnetic valve (14-2) and backheat magnetic valve (18-2) are connected back to, forms icing and the ice-melt switching circuit of cold and hot comb (16)；
Desalination pond exports (21-3) and connected by pipeline in diversion three-way, concentration liquid electromagnetic valve (21-6), threeway of confluxing, feed liquid pond (24)
The concentrate reheat coils (22) of bottom in and top out, form concentrate backheat warm-up circuit；Desalination pond outlet (21-3) passes through pipeline
Connect the fresh water reheat coils of bottom in and top out in diversion three-way, fresh water magnetic valve (21-7), threeway of confluxing, feed liquid pond (24)
(23), fresh water backheat valve (27-1), fresh water backheat warm-up circuit is formed；Desalination pond exports (21-3) and passes through pipeline connection shunting three
Logical, fresh water magnetic valve (21-7), threeway of confluxing, fresh water heat release valve (27-2), composition fresh water heat release loop；Feed pump (25) passes through
Outlet at bottom, diversion three-way, the feed liquid flow control valve (26) of pipeline binder liquid pool (24), composition feed liquid precooling cool back
Road；The outer wall parcel heat-insulation layer (21-4) in feed liquid pond (24)；Icing desalination pond (21) shell is vertically disposed square or circular
Cylinder, its upper inside wall set liquid-level switch (21-2), the liquid level signal closed-loop control feed liquid flow control valve according to feed liquid
(26) aperture, composition icing desalination pond feed liquid liquid level control loop；The middle part inwall in icing desalination pond (21) sets temperature to open
Close (21-5), with switching control cooling magnetic valve (14-1) and the switch of heat supply magnetic valve (18-1), form icing desalination pond
Switching freezes and ice-melt loop.
2. drive multigroup icing desalination pond according to the refrigerating medium unit switching described in claim 1, it is characterised in that：Evaporator
(1) threeway of confluxing is set on refrigerating medium outlet feed flow main, and import is returned on liquid main and sets diversion three-way, and diversion three-way passes through pipe
Road connection inhales cold heat exchanger (15), inhales cold magnetic valve (15-1), threeway of confluxing, and composition inhales cold loop.
3. drive multigroup icing desalination pond according to the refrigerating medium unit switching described in claim 1, it is characterised in that：Condenser
(4) diversion three-way is set on the feed flow main of refrigerating medium outlet connection, returning for import connection sets threeway of confluxing on liquid main, point
Flow threeway and connected by pipeline and inhale heat release magnetic valve (19-1), inhale heat release cooling tower (19), threeway of confluxing, composition is inhaled heat release and returned
Road.
4. drive multigroup icing desalination pond according to the refrigerating medium unit switching described in claim 1, it is characterised in that：Feed liquid pond
(24) processing is seawater in, or municipal middle water, or municipal sewage, or salt solution, or sour water, or buck, or
Organic solution, or inorganic solution, or industrial wastewater, or mine bitter, or in oilfield sewage, or chemical engineering sewage
One kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005881.6A CN107697970A (en) | 2017-10-12 | 2017-10-12 | The switching of refrigerating medium unit drives multigroup icing desalination pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711005881.6A CN107697970A (en) | 2017-10-12 | 2017-10-12 | The switching of refrigerating medium unit drives multigroup icing desalination pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107697970A true CN107697970A (en) | 2018-02-16 |
Family
ID=61182309
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711005881.6A Pending CN107697970A (en) | 2017-10-12 | 2017-10-12 | The switching of refrigerating medium unit drives multigroup icing desalination pond |
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| CN (1) | CN107697970A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624245A (en) * | 2020-12-30 | 2021-04-09 | 南京都乐制冷设备有限公司 | High salt waste water freeze concentration separation processing apparatus |
| CN113213682A (en) * | 2020-12-30 | 2021-08-06 | 南京都乐制冷设备有限公司 | High-salinity wastewater treatment method |
-
2017
- 2017-10-12 CN CN201711005881.6A patent/CN107697970A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624245A (en) * | 2020-12-30 | 2021-04-09 | 南京都乐制冷设备有限公司 | High salt waste water freeze concentration separation processing apparatus |
| CN113213682A (en) * | 2020-12-30 | 2021-08-06 | 南京都乐制冷设备有限公司 | High-salinity wastewater treatment method |
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