CN208916994U - A kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste - Google Patents
A kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste Download PDFInfo
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- CN208916994U CN208916994U CN201820312430.0U CN201820312430U CN208916994U CN 208916994 U CN208916994 U CN 208916994U CN 201820312430 U CN201820312430 U CN 201820312430U CN 208916994 U CN208916994 U CN 208916994U
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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
The utility model discloses a kind of multiple-effect evaporation crystal systems for the treatment of of Power brine waste.Compressed air assisted atomization power plant brine waste is drawn from plant gas air separation unit, the air (exhaust gas) after assisted atomization is sent through blower to evaporator with heat pump as source heat pump heat, and condensed water of the water vapor in air after evaporator condensation periodically discharges；Power plant's pretreated waste water first flows into heat pump condenser and refrigerant vapour heat exchange preheats；Waste water after preheating carries out the concentration of contact mass transfer in enriched chamber with the exhaust gas after evaporator cooling and dehumidifying, and the waste water after concentration flows into multistage flash distillation device flash distillation.The desalination water that flash distillation generates converges to catch basin, and the recycling waste water in flash distillation plant flows into spray chamber and is concentrated by compressed air assisted atomization, and brine waste is evaporated in spray chamber and is fully crystallized, and crystal salt accumulation spray chamber's bottom discharge port of generation is simultaneously periodically removed by scraper plate.The system takes full advantage of waste heat, realizes energy cascade utilization, realizes power plant effluent zero-emission.
Description
Technical field
The utility model relates to a kind of multiple-effect evaporation systems of crystallization using compressed air and heat pump treatment of Power brine waste
System, belongs to waste water from power plant and technical field of heat pumps.
Background technique
Water resource and water environmental problems have become the bottleneck for restricting industrial development." wastewater zero discharge " is more next in Thermal Power Enterprises
It is mentioned more, the high slat-containing wastewater in power plant is the key that realize wastewater zero discharge.For recycling for concentration salt water
Or commercialization reprocessing, realize that the zero-emission of brine desalination desalination process will be one and be rich in challenge and significant work
Make.
Heat pump techniques are the maturation and power-saving technology using low taste heat source, using heat pump techniques for recycling waste heat
It is a kind of effective ways for saving energy consumption with pre- thermal wastewater.
Multistage flash distillation MSF most prominent feature is evaporating surface in feed liquid and vapor interface, rather than in wall of a container
On face, therefore the problem of fouling is not present in evaporation process.In addition, the single capacity of flash evaporation technology is very big, fresh water production amount
Up to 76000m3/d.But this technology also has disadvantages that: power consumption is big, and the operating flexibility of equipment is small, is not suitable for
It makes water and changes big occasion etc..Every cubic metre of fresh water consumes 3kWh more compared with multiple-effect evaporation.Therefore, how to reduce energy consumption is
The technology problem to be solved.
The atomization process of liquid medium depends on the pressure energy for being converted into kinetic energy, to generate the liquid phase of dispersion.Combustion gas electricity
The compressed air that factory's air separation unit is drawn has immense pressure energy and thermal energy, takes the dense salt of assisted atomization if can be fully used
Water, will substantially reduce the energy consumption of wastewater treatment, and the processing problem of such strong brine will have a very big improvement.Compressed air is used
Exhaust gas after atomization still has certain pressure and temperature, and the value also utilized, direct emission is bound to cause the wave on the energy
Take.
Summary of the invention
In view of the shortcomings of the prior art, the utility model provide it is a kind of useless using compressed air and heat pump treatment of Power saliferous
The multiple-effect evaporation crystal system of water.
A kind of multiple-effect evaporation crystal system using compressed air and heat pump treatment of Power brine waste, the system include pre-
Processing module, heat pump module, concentration module, multistage flash distillation module, further include atomizing module, and preprocessing module is connected by waste pipe
Heat pump module, heat pump module connection concentration module are connect, concentration module connects multistage flash distillation module, the connection atomization of multistage flash distillation module
Module.Preprocessing module by the way that pretreated waste water is inputted heat pump module preheating by waste pipe, waste water after preheating via
Module concentration is concentrated, concentration waste water is flashed by multistage flash distillation module, and the waste water after flash distillation is atomized through atomizing module.
The preprocessing module is equipped with sodium ion filter, and concentration module is equipped with enriched chamber, and multistage flash distillation module is equipped with
Multiple groups flash vessel, the atomizing module are equipped with spray chamber.
The sodium ion filter inlet by waste pipe access power plant's brine waste, outlet pass sequentially through circulating pump I and
Waste pipe is connect with condenser water inlet.
The heat pump module is that air source heat pump includes evaporator, compressor, condenser and electromagnetic expanding valve, mutually it
Between be sequentially connected by refrigerant pipe, formed one closure refrigerant circulation passage；Condenser water inlet and preprocessing module
Waste pipe connection,
The condenser is stainless steel spiral tubular type heat exchanger, and immersion is placed in shell, and shell outer layer is laid with insulating layer.
The concentration module is that module is concentrated in gas-liquid direct-contact, and evaporator air outlet passes sequentially through air duct, draws
Blower II is connect with enriched chamber's air intake, and it is useless that enriched chamber's air outlet slit passes sequentially through air duct, air-introduced machine III, air duct discharge
Gas；
Enriched chamber's water outlet passes sequentially through circulating pump III and waste pipe is connected to condenser pipe beam entrance；
The enriched chamber is rectangle；Spiral sparge pipe is from top to bottom evenly arranged in enriched chamber, which is provided with several bands
The distributive pipe of nozzle；The waste gas outlet side of enriched chamber is equipped with hydraulic barrier；The hydraulic barrier is with galvanized steel plain sheet or glass reinforced plastic
More folding shape water fenders that item is process.
Multistage flash distillation module includes flash vessel I, flash vessel II, flash vessel III, and flash vessel I includes condensation tube bank, catchments
Disk, demister；Flash vessel II includes condensation tube bank, water-collecting tray, demister；Flash vessel III includes condensation tube bank, water-collecting tray, removes
Day with fog；Condensation tube bank passes sequentially through waste pipe, end to end；Heat exchange is further respectively had in flash vessel II and flash vessel III
Device I and heat exchanger II；Heat exchanger I entrance is connect with secondary steam pipe, and the outlet heat exchanger I passes through secondary steam pipe and heat exchanger II
Entrance connection, heat exchanger II are drawn outlet by secondary steam pipe；The water-collecting tray outlet is connected to by fresh water pipe light respectively
Water pipe is simultaneously connected to catch basin by fresh water pump；
The flash vessel I, flash vessel II, flash vessel III pass sequentially through waste pipe, vacuum pump II and waste pipe, vacuum pump
III is connected in series, and is negative pressure in flash vessels at different levels；Vacuum meter is respectively equipped on the waste pipe；The water-collecting tray distinguishes position
Positive bottom is restrained in condensation, demister is in sustained height in flash vessel with water-collecting tray respectively；The heat exchanger I and heat exchanger II
It is located at flash vessel II, the bottom flash vessel III, is immersed in circulating brine.
After the condensation tube bank that waste water passes through flash vessel I, brine heater is flowed into, the brine heater entrance passes through waste water
Pipe is connected to condensation tube bank outlet, and brine heater outlet passes sequentially through waste pipe and vacuum pump I is connected to flash vessel I cyclic salt
Water inlet, the outlet of flash vessel I circulating brine pass sequentially through waste pipe and vacuum pump II and connect with flash vessel II circulating brine entrance,
The outlet of flash vessel II circulating brine passes sequentially through waste pipe and vacuum pump III and connect with flash vessel III circulating brine entrance.
Atomizing module is compressed air assisted atomization module, is equipped with spray chamber, spray chamber's water inlet passes sequentially through dense
Liquid pump and waste pipe are connected to the outlet of flash vessel III circulating brine；It is accessed and is compressed by compressed air hose at the top of the spray chamber
Air, outlet pass sequentially through air-introduced machine I and air duct and connect with evaporator air entrance, and evaporator air outlet passes sequentially through wind
Road, air-introduced machine II are connect with enriched chamber's air intake, and enriched chamber's air outlet slit passes sequentially through air duct, air-introduced machine III, air duct discharge
Exhaust gas.
It is parabolic type at the top and bottom of the spray chamber, middle part is cylinder, and spray chamber top is equipped with partition, two phase flow
Nozzle is fixed among partition, and mixing chamber is arranged in two phase flow nozzle interior.
The brine heater is copper alloy double pipe heat exchanger, and brine heater entrance is high by the access of steam fairlead
Low Temperature Steam is discharged by steam fairlead in warm steam, outlet；High/low temperature steam can be directly from associated with gas turbine
The boiler heat recovery steam generator of fuel handling is supplied or from being suitable under the pressure of desalination processes from steam backpressure turbine
The exhaust outlet of machine is discharged from rectifying extraction turbine.
The evaporator is horizontal shell and tube type heat exchanger, and heat exchanger tube is the copper coil pipe with snakelike aluminous fin, evaporation
Device bottom is equipped with tapping pipe, and butterfly valve is equipped on tapping pipe, and waste gas outlet side is equipped with baffle plate；The waste pipe is equipped with heat preservation
Layer, gate valve is respectively equipped on waste pipe；It is respectively equipped with insulating layer on the compressed air hose, air duct, is respectively equipped with air-valve thereon；
The steam fairlead and secondary steam pipe are equipped with insulating layer.
The compressed air that plant gas air separation unit is drawn is in spray chamber using two-phase flow nozzle assisted atomization from multistage
Power plant's brine waste of flash distillation plant, the exhaust gas after assisted atomization are sent to evaporator air entrance, in evaporator by blower
Refrigerant heat exchanger, itself cooling and dehumidifying discharges sensible heat and latent heat, drives heat pump；Water vapor in air is after evaporator condensation
Condensed water periodically give off and collect by tapping pipe；
Condenser is flowed into after power plant effluent first flows through sodium ion filter and antisludging agent is added, defoaming agent is pre-processed
It exchanges heat and preheats with refrigerant vapour, the waste water after preheating carries out contact in enriched chamber with the exhaust gas after evaporator cooling and dehumidifying
Mass transfer concentration, the waste water of the higher concentration after concentration flow into multistage flash distillation device and are flashed, finally empty by compression in spray chamber
Gas assisted atomization, which is evaporated to, to be fully crystallized；
The desalination water that flash process generates passes sequentially through fresh water pipe and fresh water pump flows into catch basin；Circulation in flash distillation plant
Waste water further flows into spray chamber, and waste water is evaporated in spray chamber and is fully crystallized, and the crystal salt of generation enters spray chamber bottom and goes out
Material mouth.
The utility model has the following beneficial effects:
1) comprehensively consider multistage flash distillation MSF and multiple-effect evaporation the advantages of, propose at improved multistage flash distillation power plant effluent
Reason system.On the basis of original multistage flash distillation, in conjunction with multiple-effect evaporation by the latent heat utilization of secondary steam next effect the characteristics of,
A part of the secondary steam flashed off in flash vessels at different levels is guided to and is used to heat cycles salt water in next stage flash vessel, simultaneously
Secondary steam is condensed into product fresh water, fresh water can directly as the boiler feed water of power plant, and pass through after processing then can be with
Freshwater resources status in short supply is solved as drinking water, the water generation ratio of existing MSF system is improved, reduces and produce water cost.
2) compressed air drawn using gas turbine air separation unit is greatly reduced at waste water come assisted atomization strong brine
The energy consumption of reason improves brine waste concentrated effect.
3) brine waste is fully crystallized after compressed air assisted atomization, realizes zero-emission and the inorganic salts of waste water
Recycling.
4) air (exhaust gas) after compressed air assisted atomization contains considerable sensible heat and latent heat, cooling in evaporator with heat pump
Full heat is passed to the refrigerant in evaporator by dehumidifying, and heat pump is further through the pre- thermal wastewater of condenser, after subsequent cooling and dehumidifying
Exhaust gas carries out contact caloic with the waste water after preheating and exchanges, and waste water is concentrated, and exhaust gas is fully used, and realizes energy ladder
Grade utilizes, and has good economic and social benefit.
Detailed description of the invention
Fig. 1 is a kind of multiple-effect evaporation crystal system artwork using compressed air and heat pump treatment of Power brine waste；
Fig. 2 a, 2b and 2c are respectively flash vessel II7, II8 and II9 side cross-sectional view and reaction schematic diagram；
Fig. 3 is condenser side sectional view；
Fig. 4 is vaporizer side sectional view；
Fig. 5 is enriched chamber's side cross-sectional view and reaction schematic diagram；
Fig. 6 is spray chamber's side cross-sectional view and reaction schematic diagram；
Fig. 7 is two phase flow nozzle interior structure chart.
Appended drawing reference is as follows:
1- sodium ion filter；2- evaporator；3- compressor；4- condenser；5- electromagnetic expanding valve；The enriched chamber 6-；7- dodges
Steaming device II；8- flash vessel II；9- flash vessel III；10- brine heater；The spray chamber 11-；12- catch basin；13- circulating pump I；
14- circulating pump II；15- circulating pump III；16- vacuum pump I；17- vacuum pump II；18- vacuum pump III；19- heavy liquor pump；20- is light
Water pump；21- air-introduced machine I；22- air-introduced machine II；23- air-introduced machine III；24,25,26,27- gate valve；28,29,30,31- air-valve；
32,33,34,35,36,37,38,39,40,41,42- waste pipe；43,44,45,46- fresh water pipe；47- compressed air hose；48,
49,50, the air duct 51-；52- refrigerant pipe；53,54- steam fairlead；55a, 55b, 55c- vacuum meter；56a, 56b, 56c- are cold
Solidifying tube bank；57a, 57b, 57c- water-collecting tray；58a, 58b, 58c- demister；59a- heat exchanger I；59b- heat exchanger II；60,61
Secondary steam pipe；62- insulating layer；63- fin；64- tapping pipe；65- butterfly valve；66- baffle plate；The spiral sparge pipe of 67-；68-
Distributive pipe；69- hydraulic barrier；70- drainage hole；71- partition；72- two-phase flow nozzle；73- mixing chamber；74- discharge port；75- is scraped
Plate；A- preprocessing module；B- heat pump module；Module is concentrated in C-；D- multistage flash distillation module；E- atomizing module.
Specific embodiment
To keep the purposes, technical schemes and advantages of the utility model implementation clearer, below in conjunction with the utility model
Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.In the accompanying drawings, from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Described reality
Applying example is the utility model a part of the embodiment, instead of all the embodiments.Below with reference to the embodiment of attached drawing description
And the word of directionality is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is described in one broad embodiment of the utility model
Below in conjunction with attached drawing 1-7, illustrate a kind of multiple-effect evaporation using compressed air and heat pump treatment of Power brine waste
Crystal system:
As shown in Figure 1, a kind of multiple-effect evaporation crystal system using compressed air and heat pump treatment of Power brine waste, it should
System include sodium ion filter 1, air source heat pump, enriched chamber 6, multistage flash distillation device, brine heater 10, spray chamber 11,
It is catch basin 12, circulating pump I13, circulating pump II14, circulating pump III15, vacuum pump I16, vacuum pump II17, vacuum pump III18, dense
Liquid pump 19, fresh water pump 20, air-introduced machine I21, air-introduced machine II22, air-introduced machine III23.
The air source heat pump includes evaporator 2, compressor 3, condenser 4 and electromagnetic expanding valve 5, passes through system between each other
Refrigerant tube 52 is sequentially connected, and forms the refrigerant circulation passage of a closure；
1 entrance of sodium ion filter accesses power plant's brine waste by waste pipe 32, and outlet passes sequentially through circulating pump
I13 and waste pipe 33 are connect with 4 water inlet of condenser, and 4 water outlet of condenser passes sequentially through circulating pump III14 and waste pipe 34
It is connect with 6 water inlet of enriched chamber, 6 water outlet of enriched chamber passes sequentially through circulating pump III15 and waste pipe 35 is connected to condensation tube bank
56c entrance；
As shown in Fig. 1,2a, 2b and 2c, the multistage flash distillation device includes flash vessel I7, flash vessel II (8), flash vessel
III9, flash vessel I7 include condensation tube bank 56a, water-collecting tray 57a, demister 58a；Flash vessel II8 includes condensation tube bank 56b, collection
Water pond 57b, demister 58b；Flash vessel III9 includes condensation tube bank 56c, water-collecting tray 57c, demister 58c；The condensation tube bank
It is end to end that 56a, 56b, 56c pass sequentially through waste pipe 36,37；Heat exchange is further respectively had in flash vessel II8 and flash vessel III9
Device I59a and heat exchanger II59b；Heat exchanger I59a entrance is connect with secondary steam pipe 60, and the outlet heat exchanger I59a passes through secondary steaming
Steam pipe 61 is connect with heat exchanger II59b entrance, and heat exchanger II59b is drawn outlet by secondary steam pipe 62；The water-collecting tray
The outlet 57a, 57b, 57c is connected to fresh water pipe 46 and is connected to by fresh water pump 20 by fresh water pipe 43,44,45 respectively catchments
Slot 12；
10 entrance of brine heater is connected to the outlet condensation tube bank 56a, the outlet heat exchanger II10 by waste pipe 38
Pass sequentially through waste pipe 39 and vacuum pump I16 be connected to flash vessel I7 circulating brine entrance, the outlet of flash vessel I7 circulating brine according to
It is secondary to be connect by waste pipe 40 and vacuum pump II17 with flash vessel II8 circulating brine entrance, flash vessel II8 circulating brine outlet according to
It is secondary to be connect by waste pipe 41 and vacuum pump III18 with flash vessel III9 circulating brine entrance；
11 water inlet of spray chamber passes sequentially through heavy liquor pump 19 and waste pipe 42 is connected to flash vessel III9 circulating brine
Outlet；
At the top of the spray chamber 11 by compressed air hose 47 access compressed air, outlet pass sequentially through air-introduced machine I21 and
Air duct 48 is connect with 2 air intake of evaporator, and 2 air outlet slit of evaporator passes sequentially through air duct 49, air-introduced machine II22 and enriched chamber
The connection of 6 air intakes, 6 air outlet slit of enriched chamber pass sequentially through air duct 50, air-introduced machine III23, the discharge of air duct 51 exhaust gas.
As shown in figure 3, the condenser 4 is stainless steel spiral tubular type heat exchanger, immersion is placed in shell, shell outer layer
It is laid with insulating layer 62.
As shown in figure 4, the evaporator 2 is horizontal shell and tube type heat exchanger, heat exchanger tube is with snakelike aluminous fin 63
Copper coil pipe, 2 bottom of evaporator are equipped with tapping pipe 64, and butterfly valve 65 is equipped on tapping pipe 64, and waste gas outlet side is equipped with baffle plate
66。
As shown in Fig. 1,2a, 2b and 2c, the flash vessel I7, flash vessel II8, flash vessel III9 pass sequentially through waste pipe
40, vacuum pump II17 and waste pipe 41, vacuum pump III18 are connected in series, and are negative pressure in flash vessels at different levels；The waste pipe
39, vacuum meter 55a, 55b, 55c are respectively equipped on 40,41；Described water-collecting tray 57a, 57b, 57c be located at condensation tube bank 56a,
56b, 56c positive bottom, demister 58a, 58b, 58c are in sustained height in flash vessel with water-collecting tray 57a, 57b, 57c respectively；Institute
It states heat exchanger I59a and heat exchanger II59b and is located at flash vessel II8, the bottom flash vessel III9, be immersed in circulating brine.
As shown in Figure 1, the brine heater 10 is copper alloy double pipe heat exchanger, 10 entrance of brine heater passes through steaming
Vapour fairlead 53 accesses high-temperature steam, and Low Temperature Steam is discharged by steam fairlead 54 in outlet.
As shown in figure 5, the enriched chamber 6 is rectangle；Spiral sparge pipe 67 is from top to bottom evenly arranged in enriched chamber 6,
It which is provided with several distributive pipes 68 with nozzle；The waste gas outlet side of enriched chamber 6 is equipped with hydraulic barrier 69；The hydraulic barrier
69 be the more folding shape water fenders being process with galvanized steel plain sheet or glass fibre reinforced plastics.
It as shown in Figures 6 and 7, is parabolic type at the top and bottom of the spray chamber 11, middle part is cylinder, spray chamber 11
Top is equipped with partition 71, and two-phase flow nozzle 72 is fixed among partition 71, and mixing chamber 73 is arranged inside two-phase flow nozzle 72.
As shown in Figure 1, being respectively equipped with gate valve 24,25,26,27 on the waste pipe 33,34,35,42；The compressed air
Air-valve 28,29,30,31 is respectively equipped on pipe 47, air duct 48,40,50,51.
Finally it is noted that although above by illustration, it has been described that the utility model is optimal specific
Embodiment, the protection scope of the utility model are not limited in above description, what persons skilled in the art were understood that
It is that under the premise of the essence and marrow instructed without departing substantially from the utility model, it is practical new that any modifications and variations both fall within this
The protection scope of type.
Claims (9)
1. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste, which includes preprocessing module, heat pump module, dense
Contracting module, multistage flash distillation module, it is characterised in that: further include atomizing module, preprocessing module connects heat pump mould by waste pipe
Block, heat pump module connection concentration module, concentration module connect multistage flash distillation module, and multistage flash distillation module connects atomizing module.
2. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 1, which is characterized in that described
Preprocessing module be equipped with sodium ion filter, concentration module be equipped with enriched chamber, multistage flash distillation module be equipped with multiple groups flash vessel, institute
Atomizing module is stated equipped with spray chamber.
3. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 2, which is characterized in that described
Sodium ion filter (1) entrance accesses power plant's brine waste by waste pipe, and outlet passes sequentially through circulating pump I (13) and waste pipe
It is connect with condenser (4) water inlet.
4. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 1 or claim 2, which is characterized in that
The heat pump module is that air source heat pump includes evaporator (2), compressor (3), condenser (4) and electromagnetic expanding valve (5), phase
It is sequentially connected between mutually by refrigerant pipe (52), forms the refrigerant circulation passage of a closure；Condenser (4) water inlet with
The waste pipe of preprocessing module connects.
5. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 1 or claim 2, which is characterized in that
The concentration module is that module is concentrated in gas-liquid direct-contact, and evaporator (2) air outlet slit passes sequentially through air duct, air-introduced machine II
(22) it is connect with enriched chamber (6) air intake, enriched chamber (6) air outlet slit passes sequentially through air duct, air-introduced machine III (23), air duct
Exhaust gas is discharged；Enriched chamber (6) water outlet passes sequentially through circulating pump III (15) and waste pipe is connected to condenser pipe beam entrance；
The enriched chamber (6) is rectangle；Spiral sparge pipe (67) is from top to bottom evenly arranged in enriched chamber (6), which is provided with
Several distributive pipes (68) with nozzle；The waste gas outlet side of enriched chamber (6) is equipped with hydraulic barrier (69)；The hydraulic barrier (69)
For the more folding shape water fenders being process with galvanized steel plain sheet or glass fibre reinforced plastics.
6. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 1 or claim 2, which is characterized in that
Multistage flash distillation module includes flash vessel I (7), flash vessel II (8), flash vessel III (9), and flash vessel I (7) includes condensation tube bank, collection
Water pond, demister；Flash vessel II (8) includes condensation tube bank, water-collecting tray, demister；Flash vessel III (9) includes condensation tube bank, collection
Water pond, demister；It is end to end that the condensation tube bank passes sequentially through waste pipe；In flash vessel II (8) and flash vessel III (9) also
It is respectively equipped with heat exchanger I (59a) and heat exchanger II (59b)；Heat exchanger I (59a) entrance is connect with secondary steam pipe, heat exchanger I
The outlet (59a) is connect by secondary steam pipe with heat exchanger II (59b) entrance, and the outlet heat exchanger II (59b) passes through secondary steam
Pipe is drawn；The water-collecting tray outlet is connected to fresh water pipe (46) and is connected to by fresh water pump (20) by fresh water pipe respectively catchments
Slot (12)；
The flash vessel I (7), flash vessel II (8), flash vessel III (9) pass sequentially through waste pipe, vacuum pump II (17) and waste water
Pipe, vacuum pump III (18) are connected in series, and are negative pressure in flash vessels at different levels；Vacuum meter is respectively equipped on the waste pipe；It is described
Water-collecting tray is located at condensation tube bank positive bottom, and demister is in sustained height in flash vessel with water-collecting tray respectively；The heat exchange
Device I (59a) and heat exchanger II (59b) is located at flash vessel II (8), flash vessel III (9) bottom, is immersed in circulating brine；
After the condensation tube bank that waste water passes through flash vessel I (7), flow into brine heater (10)；
Brine heater (10) entrance is connected to condensation tube bank outlet by waste pipe, and brine heater (10) exports successively
Be connected to flash vessel I (7) circulating brine entrance by waste pipe and vacuum pump I (16), the outlet of flash vessel I (7) circulating brine according to
Secondary to be connect by waste pipe and vacuum pump II (17) with flash vessel II (8) circulating brine entrance, flash vessel II (8) circulating brine goes out
Mouth passes sequentially through waste pipe and vacuum pump III (18) and connect with flash vessel III (9) circulating brine entrance.
7. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 1 or claim 2, which is characterized in that
Atomizing module is compressed air assisted atomization module, is equipped with spray chamber, and spray chamber (11) water inlet passes sequentially through heavy liquor pump
(19) and waste pipe is connected to the outlet of flash vessel III (9) circulating brine；Pass through compressed air hose at the top of the spray chamber (11)
(47) compressed air is accessed, outlet passes sequentially through air-introduced machine I (21) and air duct and connect with evaporator (2) air intake, evaporator
(2) air outlet slit passes sequentially through air duct, air-introduced machine II (22) is connect with enriched chamber (6) air intake, enriched chamber (6) air outlet slit
Pass sequentially through air duct, air-introduced machine III (23), air duct discharge exhaust gas；
It is parabolic type at the top and bottom of the spray chamber (11), middle part is cylinder, and spray chamber (11) top is equipped with partition
(71), two-phase flow nozzle (72) is fixed among partition (71), and mixing chamber (73) are arranged inside two-phase flow nozzle (72).
8. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 6, which is characterized in that described
Brine heater (10) is copper alloy double pipe heat exchanger, and brine heater (10) entrance accesses high temperature by steam fairlead and steams
Low Temperature Steam is discharged by steam fairlead in vapour, outlet；High/low temperature steam can be directly from fuel associated with gas turbine
The boiler heat recovery steam generator of operation is supplied or from being suitable under the pressure of desalination processes from steam back pressure turbine
Exhaust outlet is discharged from rectifying extraction turbine, and the steam fairlead and secondary steam pipe are equipped with insulating layer.
9. a kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste according to claim 4, which is characterized in that described
Evaporator (2) is horizontal shell and tube type heat exchanger, and heat exchanger tube is the copper coil pipe with snakelike aluminous fin (63), evaporator (2)
Bottom is equipped with tapping pipe (64), is equipped with butterfly valve (65) on tapping pipe (64), and waste gas outlet side is equipped with baffle plate (66)；It is described cold
Condenser (4) is stainless steel spiral tubular type heat exchanger, and immersion is placed in shell, and shell outer layer is laid with insulating layer (62), described useless
Water pipe is equipped with insulating layer, is respectively equipped with gate valve on waste pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312430.0U CN208916994U (en) | 2018-03-07 | 2018-03-07 | A kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste |
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| CN201820312430.0U CN208916994U (en) | 2018-03-07 | 2018-03-07 | A kind of multiple-effect evaporation crystal system for the treatment of of Power brine waste |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147608A (en) * | 2018-03-07 | 2018-06-12 | 华北电力大学（保定） | It is a kind of to utilize compressed air and the multiple-effect evaporation crystal system and method for heat pump treatment of Power brine waste |
| WO2023284566A1 (en) * | 2021-07-14 | 2023-01-19 | 东南大学 | Saline wastewater treatment system using solar-assisted heat pump |
| US12030801B2 (en) | 2021-07-14 | 2024-07-09 | Southeast University | Saline wastewater treatment system using solar-assisted heat pump |
-
2018
- 2018-03-07 CN CN201820312430.0U patent/CN208916994U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147608A (en) * | 2018-03-07 | 2018-06-12 | 华北电力大学（保定） | It is a kind of to utilize compressed air and the multiple-effect evaporation crystal system and method for heat pump treatment of Power brine waste |
| CN108147608B (en) * | 2018-03-07 | 2023-10-13 | 华北电力大学（保定） | Multi-effect evaporation crystallization system and method for treating power plant brine wastewater by using compressed air and heat pump |
| WO2023284566A1 (en) * | 2021-07-14 | 2023-01-19 | 东南大学 | Saline wastewater treatment system using solar-assisted heat pump |
| US12030801B2 (en) | 2021-07-14 | 2024-07-09 | Southeast University | Saline wastewater treatment system using solar-assisted heat pump |
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