CN105384205B - A kind of application method of the desalination plant of high conversion - Google Patents
A kind of application method of the desalination plant of high conversion Download PDFInfo
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- CN105384205B CN105384205B CN201510967227.8A CN201510967227A CN105384205B CN 105384205 B CN105384205 B CN 105384205B CN 201510967227 A CN201510967227 A CN 201510967227A CN 105384205 B CN105384205 B CN 105384205B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
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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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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a kind of desalination plants of high conversion, including feed-tank, evaporation tank, cooling cylinder and fresh water outlet mouth, evaporation upper box part is connected to by steam pipe with cooling cylinder lower end, the lower part of cooling cylinder opens up fresh water outlet mouth, fresh water outlet mouth is by detecting fresh water detector of the pipeline connection for detecting water quality, cooling cylinder bottom is provided with water guide mould, water guide mould is obliquely installed, steam pipe is opened on high-end, fresh water outlet mouth is opened on low side, condensing unit is provided in cooling cylinder, condensing unit includes several condensate pans, setting condensation hole on condensate pans, condensation hole between adjacent condensate pans is laid staggeredly, desalination plant further includes intelligent controlling device, intelligent controlling device includes central controller.Whether the present invention has the advantages that intelligentized control method distillation process pressure value and temperature value, can detect the fresh water prepared meets that standard for drinking, cooling cylinder be reasonable for structure, seawater high conversion rate.
Description
Technical field
The present invention relates to the desalination plant of the technical field of sea water desalination more particularly to a kind of high conversion and its make
Use method.
Background technology
It is well known that the surface of the earth 71% is all covered with water, and can only be accounted for entirely for the freshwater resources of people's life
The 2.5% of portion's water resource, seawater content corresponding thereto but occupy 97.5%, as world population increases, modern work
The high speed development of industry, it is increasing to the demand of water resource, especially freshwater resources.Therefore, scarcity of fresh water resources at
The very severe global problem faced for the world today.
In recent years, the attention with more and more countries to water resources shortage problem is obtained by method for desalting seawater
Freshwater resources are also considered as optimal path, and the method for the sea water desalination occurred therewith is also many, mainly have hyperfiltration,
Electroosmose process, the way of distillation, solar energy method, special membrane filter method etc., and be wherein widely used and technology development it is more ripe
Method has hyperfiltration, electroosmose process and the way of distillation.
Hyperfiltration realizes sea water desalination, a kind of main semi-permeable membrane borrowed in device so that film both sides generate osmotic pressure,
Apply ambient pressure in brine side again, and the pressure value is greater than osmotic pressure, then, a part of water is arrived with regard to reverse osmosis in brine
Fresh water side, to realize the purpose for isolating fresh water.The method applies relatively morning and technology relative maturity, but problem is to desalinate
Cheng Zhong needs very high ambient pressure, and more demanding to auxiliary facility, maintenance of equipment is also cumbersome, thus improve desalination at
This.
Electroosmose process realizes sea water desalination, and core component is exactly amberplex, under the action of high strong voltage,
Anion and cation in seawater select the anions and canons exchange membrane through alternate combinations respectively, in different collecting devices
In respectively obtain fresh water and concentrated seawater, to realize seawater separation purpose.The method chemical industry, the energy, bio-pharmaceuticals etc. all
With wide application.But disadvantage of this law is that during desalinizing seawater, amberplex usually can be by ion accumulation
Film impurity is caused to block, it is necessary to periodically remove, in addition to this, due to apply very strong voltage, energy consumption is also larger.
The way of distillation is the method for most economical practicality in three kinds of main desalination methods, and the way of distillation makes seawater by distilling seawater
The vaporization of middle fresh water, then by the cool solidifying acquisition fresh water of vapor.The method principle is concise, but in desalination process, since steam condenses
In the process, pressure is difficult to real-time control, causes steam to be lost in serious, causes to desalinate inefficient.The cooling cylinder knot of desalting plant
The inadequate science of structure, causes seawater conversion ratio low, if can solve these problems, the way of distillation is most suitable in several method
The one kind promoted the use of.
Invention content
The technical problem to be solved by the present invention for the above-mentioned state of the art is to provide a kind of intelligentized control methods to distill
Stroke pressure value and temperature value can detect the fresh water prepared and whether meet that standard for drinking, cooling cylinder be reasonable for structure, seawater high conversion rate
Desalination plant and its application method.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of desalination plant of high conversion, including feed-tank, evaporation tank, cooling cylinder and fresh water outlet mouth, water supply
Case is connected to by feed pipe with evaporation tank upper end, and the lower part of evaporation tank is provided with heating rod, temperature inductor and pressure inductor,
Evaporation upper box part is connected to by steam pipe with cooling cylinder lower end, and cooling cylinder upper end is connect by vacuum tube with a vacuum pump, condensation
The lower part of case opens up fresh water outlet mouth, and fresh water outlet mouth is light by detecting fresh water detector of the pipeline connection for detecting water quality
Water gauge connects drainpipe；Cooling cylinder bottom is provided with water guide mould, and cooling cylinder bottom is completely covered in water guide mould, and water guide mould tilts
Setting so that water guide mould forms high-end and low side, and the connector of steam pipe and cooling cylinder is opened on high-end, and fresh water outlet mouth is opened
On low side, condensing unit is provided in cooling cylinder, condensing unit is located at the high-end surface of water guide mould, and condensing unit passes through
Cooling water is pumped into condensing unit by the cooling water tank outside condenser pipe connection, cooling water tank, and condensing unit includes several condensations
Disk, cooperation up and down between condensate pans, have certain interval between each other, be both provided on each condensate pans it is multiple up and down
Hole is condensed, the condensation hole between adjacent condensate pans is laid staggeredly, and condensate pans are hollow sealing disk, and condensate pans include a water inlet stomidium
It is discharged stomidium with one, the water inlet stomidium and water outlet stomidium between condensate pans are sequentially communicated, and the condensate pans positioned at both sides pass through condensation
Pipe is connect with cooling water tank；Desalination plant further includes intelligent controlling device, and intelligent controlling device includes central controller, central controller
It is connect respectively with control switch, temperature inductor, pressure inductor and fresh water detector, temperature inductor is used for induction evaporation mode
The temperature inside the box is simultaneously passed the information on to central controller, and pressure inductor is for vacuum degree in induction evaporation mode case and passes the information on into
Device is controlled, purged with fresh water degree information is transferred to central controller by fresh water detector；Central controller is used to, by after information integration operation, send out
Control instruction controls the operating status of vacuum pump and heating rod, and the pressure and temperature in desalination plant is made to keep balance.
To optimize above-mentioned technical proposal, the concrete measure taken further includes：
Above-mentioned central controller is PLC.
Above-mentioned fresh water detector is connected with qualified water outlet pipe and unqualified water outlet pipe, when the detection of fresh water detector is light
When water water quality qualification, qualified water outlet pipe is connected, and unqualified water outlet pipe is closed, when fresh water detector detection fresh water water quality does not reach
When mark, qualified water outlet pipe is closed, and unqualified water outlet pipe is connected.
Above-mentioned evaporation tank bottom is further opened with discharge outlet, and discharge outlet connects draining pump by drainpipe, set on drainpipe
Set drain valve.
Above-mentioned feed pipe is located at one end in feed-tank and is equipped with feed pump, and water-supply valve, water supply are equipped on feed pipe
Pipe has also separated bursting tube, and automatic blow off valve is equipped on bursting tube.
A kind of application method of the desalination plant of high conversion, includes the following steps：
Step 1: self-test before operation：Start vacuum pump, evaporation tank and cooling cylinder are vacuumized, when then waiting for one section
Between, such as unchanged by pressure inductor detection to air pressure change in evaporation tank and cooling cylinder, then desalination plant leakproofness
Well, step 2 is carried out, if air pressure rises, then checks that desalination plant seals, after eliminating failure, carries out step 2；
Step 2: by feed pump to evaporation tank private water supply, central controller controls water-supply valve and feed pump energized action, gives
Water for a period of time after, water-supply valve and feed pump are stopped；
Step 3: vacuum pump operation, is extracted into required value, then heating rod is to seawater in evaporation tank by the air pressure in evaporation tank
Heating, cooling water pump work, vacuum pump stop operating；
Step 4: in heating process, in evaporation tank air pressure can change in real time, pressure inductor monitors in real time in evaporation tank
Air pressure, and central controller is transmitted signals to, after central controller is judged, control vacuum pump carries out real-time speed governing, ensures evaporation
Stable gas pressure in case and cooling cylinder；
Step 5: with the progress of heating, water vapour is generated in evaporation tank, water vapour enters cooling cylinder by steam pipe,
For water vapour from the high-end spilling of water guide mould, uplink encounters condensate pans, and part vapor is contacted with condensation panel surface, is condensed into light
Water, remaining vapor are contacted by the condensation hole of undermost condensate pans with the condensate pans of last layer, and another part vapor is cold
Fresh water is congealed into, as vapor uplink passes through the cooling of multilayer condensate pans, vapor is largely converted into fresh water, flows to water guide mould
Low side, then from fresh water outlet mouth flow out；
It is detected Step 6: fresh water enters fresh water detector by fresh water outlet mouth, if water quality complies with standard, then fresh water is from conjunction
Lattice water outlet pipe flows out；If water quality is not inconsistent standardization, then never qualified water outlet pipe is discharged fresh water, meanwhile, it will be in evaporation tank
Seawater is all discharged, and is cleaned to evaporation tank and cooling cylinder by persistently drawing water, after the completion of cleaning again since step 2
Make water.
In step 1, vacuum pump is evacuated to -40kpa to evaporation tank and cooling cylinder, after then waiting for 10 seconds, then to evaporation
The pressure of case and cooling cylinder is detected.
In step 3, the air pressure in evaporation tank is extracted into -70kpa by vacuum pump operation.
The desalination plant of the present invention can fully achieve the automation control that seawater cleaning is fresh water, pass through temperature sense
It answers device and pressure inductor to incude the pressure and temperature in desalination plant, heating rod and vacuum pump is then regulated and controled by PLC
Running power realize the control to the pressure and temperature of desalination plant；The present invention into evaporation tank inject seawater after,
Vacuum pumping is first carried out, seawater boiling point can be reduced and prevents from being that pressure is kept to take excessive water away in the follow-up process
Steam kills two birds with one stone.Whether the fresh water that the present invention can also detect preparation meets standard for drinking, and fresh water is entered by fresh water outlet mouth
Fresh water detector detects, and if water quality complies with standard, then fresh water is flowed out from qualified water outlet pipe；It is if water quality is not inconsistent standardization, then light
Never qualified water outlet pipe is discharged water, for the underproof situation of fresh water, usually because desalination plant is used for a long time, steams
It sends out case and cooling cylinder incrustation scale is excessive.The seawater in evaporation tank all can be discharged by the present invention, and by persistently drawing water to evaporation tank
It is cleaned with cooling cylinder, ensures that desalination plant is constantly in the state of normal work.The present invention also has a big feature to exist
It is lost in reach the conversion ratio for improving seawater and being converted into fresh water in by increasing steam transforming rate and reducing fresh water, increases water
The method of vapor reforming rate is a kind of new condensing unit of design, and this condensing unit includes upper and lower several layers of condensate pans, vapor
It is moved along the lower surface of condensate pans, the condensate pans that condensation Kong Ze passes through condensation hole to enter last layer is encountered, due to adjacent condensation
Condensation hole between disk is laid staggeredly, and substantially increases the stroke of vapor, makes to have between vapor and condensate pans more
Touch opportunity, considerably increase the liquefied effect of vapor.It is a kind of new cooling cylinder of design to reduce the method that fresh water is lost in
Bottom surface, this cooling cylinder bottom surface are lowed while height, and fresh water outlet mouth is arranged in low position, and high position is arranged steam and enters
Mouthful, this set can prevent liquefied fresh water flow back to evaporation tank from steam entry port, reduce the loss of fresh water.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of condensate pans；
Fig. 3 is the portions the A schematic enlarged-scale view of Fig. 1.
Reference numeral therein is：Feed-tank 1, feed pipe 11, water-supply valve 12, bursting tube 13, automatic blow off valve 14, water supply
It is pump 15, evaporation tank 2, heating rod 21, temperature inductor 22, pressure inductor 23, steam pipe 24, discharge outlet 25, drain valve 26, cold
Solidifying case 3, condensing unit 31, condensate pans 31a, condensation hole 31b, water inlet stomidium 31c, water outlet stomidium 31d, vacuum tube 32, water guide mould
33, high-end 33a, low side 33b, condenser pipe 34, vacuum pump 4, intelligent controlling device 5, central controller 51, draining pump 6, cooling water tank 7.
Specific implementation mode
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
A kind of desalination plant of high conversion of the present invention, including feed-tank 1, evaporation tank 2, cooling cylinder 3 and fresh water
Water outlet, feed-tank 1 are connected to by feed pipe 11 with 2 upper end of evaporation tank, and the lower part of evaporation tank 2 is provided with heating rod 21, temperature
Inductor 22 and pressure inductor 23,2 top of evaporation tank are connected to by steam pipe 24 with 3 lower end of cooling cylinder, and 3 upper end of cooling cylinder is logical
It crosses vacuum tube 32 to connect with a vacuum pump 4, the lower part of cooling cylinder 3 opens up fresh water outlet mouth, and fresh water outlet mouth is by detecting pipeline
The fresh water detector for detecting water quality is connected, fresh water detector connects drainpipe；3 bottom of cooling cylinder is provided with water guide mould 33,
3 bottom of cooling cylinder is completely covered in water guide mould 33, and water guide mould 33 is obliquely installed so that water guide mould 33 forms high-end 33a and low side
33b, steam pipe 24 and the connector of cooling cylinder 3 are opened on high-end 33a, and fresh water outlet mouth is opened on low side 33b, cooling cylinder
Condensing unit 31 is provided in 3, condensing unit 31 is located at right over the high-end 33a of water guide mould 33, and condensing unit 31 passes through condensation
Pipe 34 connects external cooling water tank 7, and cooling water is pumped into condensing unit 31 by cooling water tank 7, and condensing unit 31 includes several
Cooperation up and down between condensate pans 31a, condensate pans 31a, has certain interval, is both provided on each condensate pans 31a between each other
Condensation hole 31b between multiple condensation hole 31b up and down, adjacent condensate pans 31a is laid staggeredly, and condensate pans 31a is hollow
Seal disc, condensate pans 31a include a water inlet stomidium 31c and a water outlet stomidium 31d, water inlet stomidium 31c between condensate pans 31a and
Water outlet stomidium 31d is sequentially communicated, and the condensate pans 31a for being located at both sides is connect by condenser pipe 34 with cooling water tank 7；Sea water desalination fills
It further includes intelligent controlling device 5 to set, intelligent controlling device 5 include central controller 51, central controller 51 respectively with control switch, temperature sense
Device 22, pressure inductor 23 and the connection of fresh water detector are answered, temperature inductor 22 is for temperature in induction evaporation mode case 2 and will believe
Breath is transferred to central controller 51, and pressure inductor 23 is for vacuum degree in induction evaporation mode case 2 and passes the information on to central controller 51, light
Purged with fresh water degree information is transferred to central controller 51 by water gauge；Central controller 51 is used to, by after information integration operation, send out control
The operating status of system instruction control vacuum pump 4 and heating rod 21 makes the pressure and temperature in desalination plant keep balance.
In embodiment, central controller 51 is PLC.
In embodiment, fresh water detector is connected with qualified water outlet pipe and unqualified water outlet pipe, when fresh water detector is examined
When surveying fresh water water quality qualification, qualified water outlet pipe is connected, and unqualified water outlet pipe is closed, when fresh water detector detects fresh water water quality
When not up to standard, qualified water outlet pipe is closed, and unqualified water outlet pipe is connected.
In embodiment, 2 bottom of evaporation tank is further opened with discharge outlet 25, and discharge outlet 25 connects draining pump 6, row by drainpipe
Drain valve 26 is set on water pipe.
In embodiment, feed pipe 11 is located at one end in feed-tank 1 and is equipped with feed pump 15, be equipped on feed pipe 11 to
Water valve 12, feed pipe 11 have also separated bursting tube 13, automatic blow off valve 14 are equipped on bursting tube 13.
A kind of application method of the desalination plant of high conversion, includes the following steps：
Step 1: self-test before operation：Start vacuum pump 4, evaporation tank 2 and cooling cylinder 3 are vacuumized, then waits for one section
It is time, such as unchanged by the detection of pressure inductor 23 to air pressure change in evaporation tank 2 and cooling cylinder 3, then desalination plant
Leakproofness is good, carries out step 2, if air pressure rises, then checks that desalination plant seals, after eliminating failure, carries out step
Two；
Step 2: by feed pump 15 to 2 private water supply of evaporation tank, central controller 51 controls water-supply valve 12 and feed pump 15 obtains
Electronic work, after water supply for a period of time, water-supply valve 12 and feed pump 15 are stopped；
Step 3: vacuum pump 4 is run, the air pressure in evaporation tank 2 is extracted into required value, then heating rod is in evaporation tank 2
Heating of seawater, cooling water pump work, vacuum pump 4 stop operating；
Step 4: in heating process, in evaporation tank 2 air pressure can change in real time, the real time monitoring evaporation of pressure inductor 23
Air pressure in case 2, and central controller 51 is transmitted signals to, after central controller 51 is judged, control vacuum pump 4 is adjusted in real time
Speed ensures stable gas pressure in evaporation tank 2 and cooling cylinder 3；
Step 5: with the progress of heating, water vapour is generated in evaporation tank 2, water vapour is entered by steam pipe 24 to be condensed
Case 3, water vapour are overflowed from the high-end 33a of water guide mould 33, and uplink encounters condensate pans 31a, part vapor and the surfaces condensate pans 31a
Contact, is condensed into fresh water, the condensate pans 31a that remaining vapor passes through condensation the hole 31b and last layer of undermost condensate pans 31a
Contact, another part vapor are condensed into fresh water, and as vapor uplink passes through the cooling of multilayer condensate pans 31a, vapor is big
It is partially converted into fresh water, flows to the low side 33b of water guide mould 33, is then flowed out from fresh water outlet mouth；
It is detected Step 6: fresh water enters fresh water detector by fresh water outlet mouth, if water quality complies with standard, then fresh water is from conjunction
Lattice water outlet pipe flows out；If water quality is not inconsistent standardization, then never qualified water outlet pipe is discharged fresh water, meanwhile, it will be in evaporation tank 2
Seawater is all discharged, and is cleaned to evaporation tank 2 and cooling cylinder 3 by persistently drawing water, and is opened again from step 2 after the completion of cleaning
Beginning makes water.
In step 1, vacuum pump 4 is evacuated to -40kpa to evaporation tank 2 and cooling cylinder 3, after then waiting for 10 seconds, then it is right
The pressure of evaporation tank 2 and cooling cylinder 3 is detected.
In step 3, vacuum pump 4 is run, and the air pressure in evaporation tank 2 is extracted into -70kpa.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Range.
Claims (7)
1. a kind of application method of the desalination plant of high conversion, the desalination plant of high conversion, including feed-tank
(1), evaporation tank (2), cooling cylinder (3) and fresh water outlet mouth, it is characterized in that：The feed-tank (1) by feed pipe (11) with
Evaporation tank (2) upper end is connected to, and the lower part of the evaporation tank (2) is provided with heating rod (21), temperature inductor (22) and pressure
Inductor (23), the evaporation tank (2) top are connected to by steam pipe (24) with cooling cylinder (3) lower end, the cooling cylinder
(3) upper end is connect by vacuum tube (32) with a vacuum pump (4), and the lower part of the cooling cylinder (3) opens up fresh water outlet mouth, institute
The fresh water outlet mouth stated is by detecting fresh water detector of the pipeline connection for detecting water quality, fresh water detector connection row
Water pipe；Described cooling cylinder (3) bottom is provided with water guide mould (33), and cooling cylinder (3) bottom is completely covered in the water guide mould (33)
Portion, the water guide mould (33) are obliquely installed so that water guide mould (33) forms high-end (33a) and low side (33b), the steam
Pipe (24) and the connector of cooling cylinder (3) are opened on high-end (33a), and the fresh water outlet mouth is opened on low side (33b),
It is provided with condensing unit (31) in the cooling cylinder (3), the condensing unit (31) is located at the high-end of water guide mould (33)
Right over (33a), the condensing unit (31) passes through the cooling water tank (7) outside condenser pipe (34) connection, the cooling
Cooling water is pumped into condensing unit (31) by water tank (7), and the condensing unit (31) includes several condensate pans (31a), described
Condensate pans (31a) between cooperation up and down, there is certain interval between each other, be respectively provided on the condensate pans (31a)
There are multiple condensation holes (31b) up and down, the condensation hole (31b) between adjacent condensate pans (31a) to be laid staggeredly, described is cold
Solidifying disk (31a) is hollow sealing disk, and condensate pans (31a) include a water inlet stomidium (31c) and one is discharged stomidium (31d), described
Water inlet stomidium (31c) and water outlet stomidium (31d) between condensate pans (31a) are sequentially communicated, and the condensate pans (31a) for being located at both sides are logical
Condenser pipe (34) is crossed to connect with cooling water tank (7)；The desalination plant further includes intelligent controlling device (5), described
Intelligent controlling device (5) includes central controller (51), the central controller (51) respectively with control switch, temperature inductor (22),
Pressure inductor (23) and the connection of fresh water detector, the temperature inductor (22) are used for induction evaporation mode case (2) interior temperature
And pass the information on to central controller (51), the pressure inductor (23) is for the interior vacuum degree of induction evaporation mode case (2) and will believe
Breath is transferred to central controller (51), and purged with fresh water degree information is transferred to central controller (51) by fresh water detector；Central controller (51) is used
After by information integration operation, the operating status of control instruction control vacuum pump (4) and heating rod (21) is sent out, keeps seawater light
Makeup sets interior pressure and temperature and keeps balance；The application method of the desalination plant of high conversion includes the following steps：
Step 1: self-test before operation：Start vacuum pump (4), evaporation tank (2) and cooling cylinder (3) are vacuumized, then wait for one
The section time, by pressure inductor (23) detection to evaporation tank (2) and cooling cylinder (3) interior air pressure change, as unchanged, then seawater
Desalting plant leakproofness is good, carries out step 2, if air pressure rises, then checks that desalination plant seals, after eliminating failure, into
Row step 2；
Step 2: by feed pump (15) to evaporation tank (2) private water supply, central controller (51) controls water-supply valve (12) and feed pump
(15) energized action, after water supply for a period of time, water-supply valve (12) and feed pump (15) are stopped；
Step 3: vacuum pump (4) is run, the air pressure in evaporation tank (2) is extracted into required value, then heating rod is to evaporation tank (2)
Interior heating of seawater, cooling water pump work, vacuum pump (4) stop operating；
Step 4: in heating process, evaporation tank (2) interior air pressure can change in real time, pressure inductor (23) real time monitoring evaporation
Case (2) interior air pressure, and central controller (51) is transmitted signals to, after central controller (51) is judged, control vacuum pump (4) carries out real
When speed governing, ensure evaporation tank (2) and cooling cylinder (3) interior stable gas pressure；
Step 5: with the progress of heating, water vapour is generated in evaporation tank (2), water vapour is entered by steam pipe (24) to be condensed
Case (3), water vapour are overflowed from high-end (33a) of water guide mould (33), and uplink encounters condensate pans (31a), part vapor and condensation
The surface disk (31a) contacts, and is condensed into fresh water, remaining vapor by the condensation holes (31b) of undermost condensate pans (31a) with it is upper
One layer of condensate pans (31a) contact, another part vapor are condensed into fresh water, as vapor uplink passes through multilayer condensate pans
The cooling of (31a), vapor are largely converted into fresh water, the low side (33b) of water guide mould (33) are flowed to, then from fresh water outlet mouth
Outflow；
It is detected Step 6: fresh water enters fresh water detector by fresh water outlet mouth, if water quality complies with standard, then fresh water is from qualified water
Outlet pipe flows out；If water quality is not inconsistent standardization, then never qualified water outlet pipe is discharged fresh water, meanwhile, by the sea in evaporation tank (2)
Water is all discharged, and is cleaned to evaporation tank (2) and cooling cylinder (3) by persistently drawing water, again from step 2 after the completion of cleaning
Start to make water.
2. a kind of application method of the desalination plant of high conversion according to claim 1, it is characterized in that：Described
Central controller (51) is PLC.
3. a kind of application method of the desalination plant of high conversion according to claim 2, it is characterized in that：Described
Fresh water detector is connected with qualified water outlet pipe and unqualified water outlet pipe, when fresh water detector detects fresh water water quality qualification,
The qualified water outlet pipe is connected, and unqualified water outlet pipe is closed, when fresh water detector detection fresh water water quality is not up to standard, institute
The qualified water outlet pipe stated is closed, and unqualified water outlet pipe is connected.
4. a kind of application method of the desalination plant of high conversion according to claim 3, it is characterized in that：Described
Evaporation tank (2) bottom is further opened with discharge outlet (25), and the discharge outlet (25) connects draining pump (6) by drainpipe, described
Drainpipe on setting drain valve (26).
5. a kind of application method of the desalination plant of high conversion according to claim 4, it is characterized in that：Described
Feed pipe (11) is located at one end in feed-tank (1) and is equipped with feed pump (15), and water-supply valve (12) is equipped on feed pipe (11),
The feed pipe (11) has also separated bursting tube (13), and automatic blow off valve (14) is equipped on the bursting tube (13).
6. a kind of application method of the desalination plant of high conversion according to claim 5, it is characterized in that：Step 1
In, vacuum pump (4) is evacuated to -40kPa to evaporation tank (2) and cooling cylinder (3), after then waiting for 10 seconds, then to evaporation tank
(2) it is detected with the pressure of cooling cylinder (3).
7. a kind of application method of the desalination plant of high conversion according to claim 6, it is characterized in that：Step 3
In, the air pressure in evaporation tank (2) is extracted into -70kPa by vacuum pump (4) operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105692743A (en) * | 2016-04-15 | 2016-06-22 | 佛山市真空泵厂有限公司 | Environment-friendly vacuum liquid waste treatment system |
| CN111348707B (en) * | 2020-05-06 | 2024-06-07 | 机械工业第六设计研究院有限公司 | Sea water desalination system utilizing sea water temperature difference energy and wave energy |
| CN115321731B (en) * | 2022-07-22 | 2023-09-01 | 广州市心德实业有限公司 | Evaporation type sewage treatment device |
| CN117401755A (en) * | 2023-11-15 | 2024-01-16 | 广东工业大学 | Method and device for desalting sea water by vacuum capillary distillation |
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| CN102491436A (en) * | 2011-11-25 | 2012-06-13 | 河南科技大学 | Intelligent seawater desalting device |
| CN205258039U (en) * | 2015-12-22 | 2016-05-25 | 江苏海事职业技术学院 | Sea water desalination device of high conversion |
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