CN207451664U - 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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- CN207451664U CN207451664U CN201721380365.7U CN201721380365U CN207451664U CN 207451664 U CN207451664 U CN 207451664U CN 201721380365 U CN201721380365 U CN 201721380365U CN 207451664 U CN207451664 U CN 207451664U
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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
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Abstract
A kind of refrigerating medium unit switching drives multigroup icing desalination pond：Refrigerating medium unit is by the way that for cold loop, heat supplying loop, switching drives icing, separation, concentration, the ice-melt samsara in multigroup icing desalination pond, 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；It is 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.Can cold be discharged by fresh water coil pipe and concentrate coil pipe centralized recovery, also can discharge condenser heat with fresh water, can also environment cold be absorbed by heat exchanger.
Description
First, technical field
The present invention relates to a kind of switchings of refrigerating medium unit to drive multigroup icing desalination pond, and brine is carried out using principle refrigeration
Concentration, can be widely applied to sea water desalination, 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 desalination plant：When being frozen using seawater freezing, the floating of fresh water and with the brine after enrichment according to weight
Force stratification, icing, then it is fresh water that ice sheet, which is melted, and realize sea water desalination.Freezing desalination plant can be divided into naturally again
Icing method and artificial two kinds of icing method, are both among research.
The advantages of freezing desalination plant, is as follows：
1st, since the chemical liveness inflection point of water is 60 DEG C, 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, since 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.
It is further applied however, the shortcomings that freezing desalination plant also restricts it：
1st, it is difficult to recycle icing latent heat, ice-melt latent heat, takes fresh water and discharge brine 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 desalination plant 4 times since the driving power consumption of device fresh water per ton is 47kW*h/t,
Therefore the raising of its economy and the shortening of payoff period are limited；
3rd, freezing desalination plant belongs to large scale industry freezing equipment, it is difficult to realize miniaturization, electrification of domestic.
3rd, the content of the invention
The object of the invention：Refrigerating medium unit is by the way that for cold loop, heat supplying loop, switching drives the knot in multigroup icing desalination pond
The icing cold of one group of cold and hot comb is extracted in ice, separation, concentration, ice-melt samsara, and 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 is transported with energy saver mode
Row, summer discharge condenser waste heat by fresh water heat release circuit.It is the product transboundary for freezing industry and sea water desalination industry.
Multigroup icing desalination pond is driven according to attached refrigerating medium unit switching shown in FIG. 1, 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- solenoid valves；13- economizer expansion valves；14-1- cooling solenoid valves；14-2- returns cold electromagnetism
Valve；15- inhales cold heat exchanger；15-1- inhales cold solenoid valve；The cold and hot combs of 16-；17- cooling circulating pumps；18-1- supplies thermoelectrical magnetic valve；
18-2- backheat solenoid valves；19- inhales heat release cooling tower；19-1- inhales heat release solenoid 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- insulating layers；21-5- temperature switches；21-
6- concentrates liquid electromagnetic valve；21-7- fresh water solenoid 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：
1 top gaseous refrigerant outlet of evaporator passes through pipeline connect compressor 2, oil eliminator 3,4 refrigerant of condenser
Side, device for drying and filtering 6, economizer 5 cross cold side, economizer threeway, hydrojet threeway, expansion valve 7,1 bottom liquid refrigeration of evaporator
Agent import forms refrigeration cycle；
1 top gaseous refrigerant outlet tube outer surface of evaporator sets the aperture of temperature sensing package closed-loop control expansion valve 7, and swollen
The outlet of swollen valve 7 connects 1 bottom liquid refrigerant inlet of evaporator by pipeline, and composition evaporator refrigerant expansion controls back
Road；
3 bottom oil outlet of oil eliminator connects hand-operated valve 8,9 oil cooling side of oil cooler, oil strainer 10, stream by pipeline
Amount switch 11, solenoid valve 12, hand-operated valve 8,2 oil return opening of compressor, composition oil cooling heat release circuit；
Economizer threeway, economizer expansion valve 13,5 evaporation side of economizer, solenoid valve 12, hand-operated valve 8,2 tonifying Qi of compressor
Mouthful, composition compressor tonifying Qi circuit；
5 top gaseous refrigerant outlet tube outer surface of economizer sets opening for temperature sensing package closed-loop control economizer expansion valve 13
Degree, and the outlet of economizer expansion valve 13 connects 5 bottom liquid refrigerant inlet of economizer by pipeline, forms economizer refrigeration
Agent expands control loop；
Hydrojet threeway, solenoid valve 12, hand-operated valve 8, compressor liquid-spraying mouth, composition motor Liquid injection cooling circuit；
The outlet of 1 refrigerating medium of evaporator is connected feed flow main pipe with import and returns liquid main pipe respectively, and passes through multipair threeway and branch
Road cooling solenoid valve 14-1 and time cold solenoid 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 is set returning liquid main pipe, composition refrigerating medium supplies cold loop；
The outlet of 4 refrigerating medium of condenser is connected feed flow main pipe, oil cooler 9 with import and returns liquid main pipe respectively, and passes through more
To threeway and branch is connected in parallel for thermoelectrical magnetic valve 18-1 and backheat solenoid valve 18-2 and the multigroup icing desalination pond 21 of switching control
The cold and hot comb 16 in middle part, and return liquid main pipe 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 brine, and interior bottom portion then for after feed liquid separation sinking, enriched layer, bottom cone
Shape center sets desalination pond outlet 21-3, the outer wall package insulating layer 21-4 in icing desalination pond 21；
The import of cold and hot comb 16 connects cooling solenoid valve 14-1 by liquid inlet tee joint and supplies thermoelectrical magnetic valve 18-1, cold and hot row
The outlet of pipe 16 connects back to cold solenoid valve 14-2 and backheat solenoid 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, confluence threeway, 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 is connected by pipeline in diversion three-way, fresh water solenoid valve 21-7, confluence threeway, 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 solenoid valve 21-7, confluence threeway, fresh water heat release valve by pipeline
27-2, composition fresh water heat release circuit；
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 circuit；
The outer wall package insulating layer 21-4 in feed liquid pond 24；
21 shell of icing desalination pond is vertically disposed square or circular cylinder, and its upper part inner wall sets liquid-level switch 21-
2, the aperture of the liquid level signal closed-loop control feed liquid flow control valve 26 according to feed liquid, composition icing desalination pond feed liquid Liquid level
Circuit；
The middle part inner wall set temperature switch 21-5 in icing desalination pond 21, with switching control cooling solenoid valve 14-1 and heat supply
The switch of solenoid valve 18-1, the switching icing in composition icing desalination pond and ice-melt circuit.
Confluence threeway is set on 1 refrigerating medium of evaporator outlet feed flow main pipe, import returns on liquid main pipe and sets diversion three-way, point
It flows threeway and is connected by pipeline and inhale cold heat exchanger 15, inhale cold solenoid valve 15-1, confluence threeway, composition inhales cold loop.
Diversion three-way is set on the feed flow main pipe of 4 refrigerating medium of condenser outlet connection, and returning on liquid main pipe for import connection is set
Confluence threeway is put, diversion three-way is connected by pipeline to be inhaled heat release solenoid valve 19-1, inhales heat release cooling tower 19, confluence threeway, composition
Inhale heat release circuit.
Handled in feed liquid pond 24 be seawater or municipal middle water or municipal sewage or brine or sour water or
Be 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 attached 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 part inner wall
The setting value of liquid-level switch 21-2, 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 solenoid valve 14-2 is returned, closes it for thermoelectrical magnetic valve 18-1, backheat solenoid valve 18-2, switch its cold and hot comb 16
To -30 DEG C of refrigerating mediums for cold loop, make the depth in the fresh water foundation icing desalination pond 21 outside pipe in feed liquid to discharge evaporator cold
The adverse current Temperature Distribution that degree distribution and 16 bottom in and top out of cold and hot comb are formed, and synchronously freeze up and down as ice sheet, 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 concentration liquid electromagnetic valve
21-6 with downwards through under in desalination pond outlet 21-3, diversion three-way, concentration liquid electromagnetic valve 21-6, confluence threeway, feed liquid pond 24 into
On the concentrate reheat coils 22 that go out, and drain concentrate 28, to recycle feed liquid sensible heat while heat up, precooling cooling is mended
Charge liquid is to the required temperature that freezes；Concentration liquid electromagnetic valve 21-6 is then shut off, opens it for thermoelectrical magnetic valve 18-1, backheat solenoid valve
18-2 closes its cooling solenoid valve 14-1, returns cold solenoid valve 14-2, its cold and hot comb 16 is made to switch to 5 DEG C of refrigerating medium heat supplies and is returned
Road makes ice sheet outside pipe melt as fresh water, is then turned on fresh water solenoid valve 21-7 with downwards through desalination pond to discharge condenser heat
Export 21-3, diversion three-way, fresh water solenoid valve 21-7, confluence threeway, 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, with while recycling feed liquid sensible heat heats up, precooling cooling supplements feed liquid
To icing required temperature；So as to fulfill the icing of feed liquid in the group icing desalination pond 21, separation, concentration, ice-melt samsara.
2nd, switching drives multigroup icing desalination pond：One refrigerating medium unit passes through for cold loop, heat supplying loop and multigroup
It freezes 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, ice-melt heat, realization device internal thermal equilibrium are provided for another group of cold and hot comb 16；
It is formed by the centrifugation dual with ice-melt, icing and gravitational separation that alternately freezes, 16 bottom in and top out of cold and hot comb 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
It receives multigroup icing desalination pond 21 and discharges 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 package insulating layer 21-4.
3rd, winter absorbs environment cold by heat exchanger：Refrigerating medium compressor emergency shutdown, and open and inhale cold solenoid valve 15-1 and run
It inhales cold heat exchanger 15 and absorbs environment cold, unlatching, which inhales heat release solenoid valve 19-1 and runs suction heat release cooling tower 19, absorbs ambient heat
Amount；Change and provide cold for cold loop by suction cold heat exchanger 15 for refrigerating medium, 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, with the icing of energy saver mode realization feed liquid, separation, concentration, ice-melt wheel
It returns.
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 solenoid valve 21-
7 through desalination pond to export 21-3, diversion three-way, fresh water solenoid valve 21-7, confluence threeway, 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 circuit.
5th, refrigeration cycle：The low pressure superheated gaseous refrigerant at 1 top of evaporator 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 4 refrigerant side of condenser becomes 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 become low pressure two
Phase refrigerant back flows back into the bottom refrigerant inlet of evaporator 1, to complete refrigeration cycle.
6th, refrigerant heat absorption evaporation：The temperature-sensitive that 1 top low pressure superheated gaseous refrigerant outlet tube outer surface of evaporator 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 become low pressure superheated gaseous refrigerant, and from top exit flow out；It is cold evaporating simultaneously
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 becomes 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 8,9 oil cooling side of oil cooler, oil strainer 10, flow switch 11, solenoid valve 12, hand-operated valve 8, compressor 2 return
Hydraulic fluid port, to cool down 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 down with discharging supercooling after its sensible heat；And a part is by economizer threeway, economizer expansion valve 13
Throttling after flow into 5 evaporation side of economizer, press through hot gaseous refrigerant in becoming with heat absorption evaporation, and by solenoid 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 desalination plant, the technology of the present invention advantage is as follows：
For refrigerating medium unit by for cold loop, heat supplying loop, switching drives the icing in multigroup icing desalination pond, separation, dense
Contracting, ice-melt samsara extract the icing cold of one group of cold and hot comb, ice-melt heat, realization device are provided for another group of cold and hot comb
Internal thermal equilibrium；It is 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
It recycles multigroup icing desalination pond and discharges cold.Winter is absorbed environment cold by heat exchanger and is run with energy saver mode, and summer passes through
Fresh water heat release circuit discharges condenser waste heat.It is the product transboundary for freezing industry and sea water desalination industry.
4th, illustrate
Attached 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- solenoid valves；13- is passed through
Help device expansion valve；14-1- cooling solenoid valves；14-2- returns cold solenoid valve；15- inhales cold heat exchanger；15-1- inhales cold solenoid valve；16-
Cold and hot comb；17- cooling circulating pumps；18-1- supplies thermoelectrical magnetic valve；18-2- backheat solenoid valves；19- inhales heat release cooling tower；19-1-
Inhale heat release solenoid 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- insulating layers；21-5- temperature switches；21-6- concentrates liquid electromagnetic valve；21-7- fresh water solenoid 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, specific 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, by horizontally disposed, refrigerating capacity 186kW, red copper heat exchanger tube steaming
Send out device 1；The compressor 2 of inspiratory flow 125m3/h；The oil eliminator 3 of oily separative efficiency 98%；Diameter 350mm/ length
The condenser 4 of 2000mm/ heating capacities 251kW；Cross the economizer 5 of cold 25kW；The red copper of interface diameter 19mm/ wall thickness 1mm is done
Dry filter 6；The red copper heating power expansion valve 7 of interface diameter 19mm/ wall thickness 1mm；The purple of interface diameter 9.52mm/ wall thickness 0.52mm
Copper hand-operated valve 8；The stainless steel oil cooler 9 of interface diameter 9.52mm/ wall thickness 0.52mm/ amount of cooling water 9kW；Interface diameter
The red copper oil strainer 10 of 9.52mm/ wall thickness 0.52mm；The red copper flow switch 11 of interface diameter 9.52mm/ wall thickness 0.52mm；
The red copper solenoid valve 12 of interface diameter 9.52mm/ wall thickness 0.52mm；The red copper economizer of interface diameter 9.52mm/ wall thickness 0.52mm
Expansion valve 13；The stainless steel cooling solenoid valve 14-1 of interface diameter 100mm/ wall thickness 2mm；Interface diameter 100mm/ wall thickness 2mm's
Stainless steel returns cold solenoid valve 14-2；Inhale the suction cold heat exchanger 15 of cold 186kW；The stainless steel of interface diameter 200mm/ wall thickness 2mm
Inhale cold solenoid valve 15-1；The cold and hot comb 16 of stainless steel of diameter 19mm/ wall thickness 1mm/ heat exchange amounts 47kW；Flow 25t/h, lift
The cooling circulating pump 17 of 15mH2O；The stainless steel of interface diameter 100mm/ wall thickness 2mm supplies thermoelectrical magnetic valve 18-1；Interface diameter
The stainless steel backheat solenoid valve 18-2 of 100mm/ wall thickness 2mm；The suction heat release cooling tower 19 of heat exchange amount 251kW；Interface diameter
The stainless steel of 200mm/ wall thickness 2mm inhales heat release solenoid valve 19-1；The heat circulation pump 20 of flow 50t/h, lift 15mH2O；4 groups
The square icing desalination pond 21 of length of side 1000mm；The stainless steel tube liquor inlet of diameter 150mm/ wall thickness 2mm/ height 50mm
21-1；Control the molten stainless steel bit switch 21-2 of elevation 100mm；The stainless steel tube of diameter 100mm/ wall thickness 2mm/ length 100mm
Desalination pond exports 21-3；The PE insulating layers 21-4 of thickness 100mm；- 50 DEG C to 50 DEG C of temperature switch 21-5；Interface diameter
The stainless steel concentration liquid electromagnetic valve 21-6 of 100mm/ wall thickness 2mm/ length 150mm；Interface diameter 100mm/ wall thickness 2mm/ length
The stainless steel fresh water solenoid valve 21-7 of 150mm；The concentrate reheat coils 22 of backheat amount 93kW；The fresh water backheat of backheat amount 93kW
Coil pipe 23；20 DEG C of inlet temperature, flow 4.8t/h, the brine of concentration 40000ppm in feed liquid pond 24；Flow 4.8t/h, lift
The feed pump 25 of 15mH2O；The stainless steel feed liquid flow control valve 26 of interface diameter 100mm/ wall thickness 2mm/ length 250mm；Outlet
15 DEG C of temperature, flow 2.4t/h, the fresh water 27 of concentration 100ppm；Interface diameter 200mm/ wall thickness 2mm/ length 150mm's is stainless
Steel fresh water backheat valve 27-1；The stainless steel fresh water heat release valve 27-2 of interface diameter 200mm/ wall thickness 2mm/ length 150mm；Outlet temperature
15 DEG C of degree, flow 2.4t/h, the brine 28 of concentration 80000ppm.
1 top gaseous refrigerant outlet of evaporator passes through pipeline connect compressor 2, oil eliminator 3,4 refrigerant of condenser
Side, device for drying and filtering 6, economizer 5 cross cold side, economizer threeway, hydrojet threeway, expansion valve 7,1 bottom liquid refrigeration of evaporator
Agent import forms refrigeration cycle；
1 top gaseous refrigerant outlet tube outer surface of evaporator sets the aperture of temperature sensing package closed-loop control expansion valve 7, and swollen
The outlet of swollen valve 7 connects 1 bottom liquid refrigerant inlet of evaporator by pipeline, and composition evaporator refrigerant expansion controls back
Road；
3 bottom oil outlet of oil eliminator connects hand-operated valve 8,9 oil cooling side of oil cooler, oil strainer 10, stream by pipeline
Amount switch 11, solenoid valve 12, hand-operated valve 8,2 oil return opening of compressor, composition oil cooling heat release circuit；
Economizer threeway, economizer expansion valve 13,5 evaporation side of economizer, solenoid valve 12, hand-operated valve 8,2 tonifying Qi of compressor
Mouthful, composition compressor tonifying Qi circuit；
5 top gaseous refrigerant outlet tube outer surface of economizer sets opening for temperature sensing package closed-loop control economizer expansion valve 13
Degree, and the outlet of economizer expansion valve 13 connects 5 bottom liquid refrigerant inlet of economizer by pipeline, forms economizer refrigeration
Agent expands control loop；
Hydrojet threeway, solenoid valve 12, hand-operated valve 8, compressor liquid-spraying mouth, composition motor Liquid injection cooling circuit；
The outlet of 1 refrigerating medium of evaporator is connected feed flow main pipe with import and returns liquid main pipe respectively, and passes through multipair threeway and branch
Road cooling solenoid valve 14-1 and time cold solenoid 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 is set returning liquid main pipe, composition refrigerating medium supplies cold loop；
The outlet of 4 refrigerating medium of condenser is connected feed flow main pipe, oil cooler 9 with import and returns liquid main pipe respectively, and passes through more
To threeway and branch is connected in parallel for thermoelectrical magnetic valve 18-1 and backheat solenoid valve 18-2 and the multigroup icing desalination pond 21 of switching control
The cold and hot comb 16 in middle part, and return liquid main pipe 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 brine, and interior bottom portion then for after feed liquid separation sinking, enriched layer, bottom cone
Shape center sets desalination pond outlet 21-3, the outer wall package insulating layer 21-4 in icing desalination pond 21；
The import of cold and hot comb 16 connects cooling solenoid valve 14-1 by liquid inlet tee joint and supplies thermoelectrical magnetic valve 18-1, cold and hot row
The outlet of pipe 16 connects back to cold solenoid valve 14-2 and backheat solenoid 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, confluence threeway, 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 is connected by pipeline in diversion three-way, fresh water solenoid valve 21-7, confluence threeway, 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 solenoid valve 21-7, confluence threeway, fresh water heat release valve by pipeline
27-2, composition fresh water heat release circuit；
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 circuit；
The outer wall package insulating layer 21-4 in feed liquid pond 24；
21 shell of icing desalination pond is vertically disposed square or circular cylinder, and its upper part inner wall sets liquid-level switch 21-
2, the aperture of the liquid level signal closed-loop control feed liquid flow control valve 26 according to feed liquid, composition icing desalination pond feed liquid Liquid level
Circuit；
The middle part inner wall set temperature switch 21-5 in icing desalination pond 21, with switching control cooling solenoid valve 14-1 and heat supply
The switch of solenoid valve 18-1, the switching icing in composition icing desalination pond and ice-melt circuit.
Confluence threeway is set on 1 refrigerating medium of evaporator outlet feed flow main pipe, import returns on liquid main pipe and sets diversion three-way, point
It flows threeway and is connected by pipeline and inhale cold heat exchanger 15, inhale cold solenoid valve 15-1, confluence threeway, composition inhales cold loop.
Diversion three-way is set on the feed flow main pipe of 4 refrigerating medium of condenser outlet connection, and returning on liquid main pipe for import connection is set
Confluence threeway is put, diversion three-way is connected by pipeline to be inhaled heat release solenoid valve 19-1, inhales heat release cooling tower 19, confluence threeway, composition
Inhale heat release circuit.
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 recycling icing cold, offer ice-melt heat, recycling and discharge brine 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 desalination plant；
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 desalination plant；
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, device performance driving economy greatly improves, and payoff period significantly shortens.
Claims (4)
1. a kind of refrigerating medium unit switching drives multigroup icing desalination pond, 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)；Solenoid valve (12)；Economizer expansion valve (13)；Cooling solenoid valve (14-1)；Return cold solenoid valve
(14-2)；Inhale cold heat exchanger (15)；Inhale cold solenoid valve (15-1)；Cold and hot comb (16)；Cooling circulating pump (17)；For thermoelectrical magnetic valve
(18-1)；Backheat solenoid valve (18-2)；Inhale heat release cooling tower (19)；Inhale heat release solenoid 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)；Insulating layer (21-4)；Temperature
It switchs (21-5)；Concentrate liquid electromagnetic valve (21-6)；Fresh water solenoid valve (21-7)；Concentrate reheat coils (22)；Fresh water backheat disk
It manages (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) 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 sensing package 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 outlet connects hand-operated valve (8), oil cooler (9) oil cooling side, oil strainer (10), flow by pipeline
Switch (11), solenoid valve (12), hand-operated valve (8), compressor (2) oil return opening, composition oil cooling heat release circuit；Economizer threeway, warp
Help device expansion valve (13), economizer (5) evaporation side, solenoid valve (12), hand-operated valve (8), compressor (2) gas supplementing opening, composition compression
Machine tonifying Qi circuit；Gaseous refrigerant outlet tube outer surface sets temperature sensing package 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, solenoid valve (12), hand-operated valve (8), compressor liquid-spraying mouth, composition electricity
Machine Liquid injection cooling circuit；The outlet of evaporator (1) refrigerating medium is connected feed flow main pipe with import and returns liquid main pipe respectively, and passes through multipair
Threeway and branch cooling solenoid valve (14-1) are connected in parallel and the multigroup icing desalination pond of switching control with returning cold solenoid valve (14-2)
(21) the cold and hot comb in middle part (16), and cooling circulating pump (17) is set returning liquid main pipe, composition refrigerating medium supplies cold loop；Condensation
The outlet of device (4) refrigerating medium is connected feed flow main pipe, oil cooler 9 with import and returns liquid main pipe respectively, and passes through multipair threeway and branch
Road is connected in parallel with backheat solenoid valve (18-2) in icing desalination pond (21) multigroup with switching control for thermoelectrical magnetic valve (18-1)
The cold and hot comb in portion (16), and heat circulation pump (20) is set returning liquid main pipe, 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 arrange horizontal, bottom in and top out cold and hot comb (16) to act on shape with gravitational separation using freezing simultaneously
Into efficiently separating for fresh water and brine, and interior bottom portion then for after feed liquid separation sinking, enriched layer, taper center in bottom is set
Desalination pond exports (21-3), the outer wall package insulating layer (21-4) in icing desalination pond (21)；The import of cold and hot comb (16) passes through
Liquid inlet tee joint connects cooling solenoid valve (14-1) and for thermoelectrical magnetic valve (18-1), and the outlet of cold and hot comb (16) passes through goes out liquid threeway
Cold solenoid valve (14-2) and backheat solenoid valve (18-2) are connected back to, forms the icing of cold and hot comb (16) and ice-melt switching circuit；
Desalination pond exports (21-3) and is connected by pipeline in diversion three-way, concentration liquid electromagnetic valve (21-6), confluence threeway, 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 solenoid valve (21-7), confluence threeway, feed liquid pond (24)
(23), fresh water backheat valve (27-1) forms fresh water backheat warm-up circuit；Desalination pond exports (21-3) and passes through pipeline connection shunting three
Logical, fresh water solenoid valve (21-7), confluence threeway, fresh water heat release valve (27-2), composition fresh water heat release circuit；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 down back
Road；The outer wall package insulating layer (21-4) in feed liquid pond (24)；Icing desalination pond (21) shell is vertically disposed square or circular
Cylinder, its upper part inner 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 inner wall set temperature in icing desalination pond (21) is opened
It closes (21-5), with switching control cooling solenoid valve (14-1) and the switch for thermoelectrical magnetic valve (18-1), forms icing desalination pond
Switching freezes and ice-melt circuit.
2. refrigerating medium unit switching described in accordance with the claim 1 drives multigroup icing desalination pond, it is characterised in that：Evaporator
(1) confluence threeway is set on refrigerating medium outlet feed flow main pipe, and import returns on liquid main pipe and sets diversion three-way, and diversion three-way passes through pipe
Road connection inhales cold heat exchanger (15), inhales cold solenoid valve (15-1), confluence threeway, and composition inhales cold loop.
3. refrigerating medium unit switching described in accordance with the claim 1 drives multigroup icing desalination pond, it is characterised in that：Condenser
(4) diversion three-way is set on the feed flow main pipe of refrigerating medium outlet connection, returning on liquid main pipe for import connection sets confluence threeway, point
It flows threeway and is connected by pipeline and inhale heat release solenoid valve (19-1), inhale heat release cooling tower (19), confluence threeway, composition is inhaled heat release and returned
Road.
4. refrigerating medium unit switching described in accordance with the claim 1 drives multigroup icing desalination pond, it is characterised in that：Feed liquid pond
(24) in processing be seawater or municipal middle water or municipal sewage or brine or sour water or buck or
In organic solution or inorganic solution or industrial wastewater or mine bitter or oilfield sewage or chemical engineering sewage
One kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721380365.7U CN207451664U (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 |
|---|---|---|---|
| CN201721380365.7U CN207451664U (en) | 2017-10-12 | 2017-10-12 | The switching of refrigerating medium unit drives multigroup icing desalination pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207451664U true CN207451664U (en) | 2018-06-05 |
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ID=62281409
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721380365.7U Expired - Fee Related CN207451664U (en) | 2017-10-12 | 2017-10-12 | The switching of refrigerating medium unit drives multigroup icing desalination pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207451664U (en) |
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2017
- 2017-10-12 CN CN201721380365.7U patent/CN207451664U/en not_active Expired - Fee Related
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Granted publication date: 20180605 Termination date: 20181012 |