CN113443772A - Freezing-ultrasonic sea water desalting device and sea water desalting method using same - Google Patents
Freezing-ultrasonic sea water desalting device and sea water desalting method using same Download PDFInfo
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- CN113443772A CN113443772A CN202110795284.8A CN202110795284A CN113443772A CN 113443772 A CN113443772 A CN 113443772A CN 202110795284 A CN202110795284 A CN 202110795284A CN 113443772 A CN113443772 A CN 113443772A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/22—Treatment of water, waste water, or sewage by freezing
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- 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
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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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
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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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- 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 invention relates to a freezing-ultrasonic sea water desalting device and a sea water desalting method using the same, wherein the freezing-ultrasonic sea water desalting device comprises an ice making chamber, an ice melting chamber and a control unit electrically connected to the tops of the ice making chamber and the ice melting chamber, a water tank, an ice making barrel, a fan and a compressor are arranged in the ice making chamber, the water tank stores sea water and conveys the sea water to the ice making barrel, the ice making barrel is externally connected with the fan and the compressor and performs air circulation exchange to freeze sea water input in the ice making barrel, an ultrasonic melting chamber is arranged in the ice melting chamber, and the ultrasonic melting chamber is connected with the ice making barrel and performs ultrasonic melting treatment on ice blocks formed in the ice making barrel to obtain fresh water. The freezing-ultrasonic sea water desalting device and the sea water desalting method using the same have the advantages that salt in sea water can be quickly and efficiently discharged, the sea water desalting effect is good, and the efficiency is high.
Description
Technical Field
The invention relates to the technical field of multistage treatment of water, wastewater or sewage, in particular to a freezing-ultrasonic seawater desalination device and a seawater desalination method using the same.
Background
Against the background of severe global water resource shortages, seawater desalination technology has developed rapidly over the last several decades and has gradually expanded from desert areas in the middle east to coastal countries around the world.
There are many seawater desalination technologies based on different principles, and common technologies include distillation methods and membrane methods. The distillation method needs to be operated at a higher temperature, which not only aggravates the corrosion of seawater to pipelines and generates secondary pollution to the produced fresh water, but also has large energy consumption, high water production cost and low fresh water production rate. The membrane method has high investment cost and large electric energy consumption, and the membrane is difficult to clean and has high requirement in the later period, so the water production cost is high, a large amount of high-salinity brine can be generated after the membrane method is used for treatment, the ecological environment can be damaged due to improper treatment of the salinity brine, and the water production cost can be further increased due to the treatment of the salinity brine. There is therefore a need to find better ways to treat seawater to produce fresh water, thereby alleviating the "water crisis".
In recent years, freezing seawater desalination has attracted much attention of researchers. The freezing method is to freeze seawater to freeze it and separate out salt while the liquid seawater is changed into solid ice. From an industrial separation point of view, the freezing process has many advantages: the separation coefficient is very high; the energy consumption is low, and the freezing latent heat is only 1/7 of the evaporation latent heat; the operation under low temperature condition is not sensitive to the problems of biological pollution, scaling and corrosion; cheap building materials can be used, so that the operation cost and the investment cost are reduced; no pretreatment is needed, less chemicals are used, and no toxic chemicals are discharged to the environment.
Disclosure of Invention
The invention aims to provide a freezing-ultrasonic sea water desalting device which can quickly and efficiently discharge salt in sea water and has good sea water desalting effect and high efficiency and a sea water desalting method using the device.
In order to solve the above problems, the present invention provides the following technical solutions:
the freezing-ultrasonic seawater desalination device comprises an ice making chamber, an ice melting chamber and a control unit electrically connected to the tops of the ice making chamber and the ice melting chamber, wherein a water tank, an ice making barrel, a fan and a compressor are arranged in the ice making chamber, the water tank stores seawater and conveys the seawater to the ice making barrel, the ice making barrel is externally connected with the fan and the compressor and carries out air circulation exchange to freeze the seawater input in the ice making barrel, an ultrasonic melting chamber is arranged in the ice melting chamber, and the ultrasonic melting chamber is connected with the ice making barrel and carries out ultrasonic melting treatment on ice blocks formed in the ice making barrel to obtain fresh water.
The invention relates to a freezing-ultrasonic sea water desalting device, wherein a spiral ice scraping knife is arranged in an ice making barrel, the spiral ice scraping knife comprises a hollow pipe which is coaxially and rotatably connected in the ice making barrel and a plurality of blades which are spirally arranged on the hollow pipe, and the top end of the hollow pipe extends out of the ice making barrel and is fixedly connected with an output shaft of a motor. .
The freezing-ultrasonic seawater desalination device comprises a thawing bin, wherein the thawing bin chamber comprises a thawing bin, the ultrasonic thawing chamber is positioned in the thawing bin, the bottom of the ultrasonic thawing chamber is provided with an ice-water mixture outlet, a primary thawing water tank is arranged below the ice-water mixture outlet, and an ice-water separation leakage net is arranged between the ultrasonic thawing chamber and the primary thawing water tank.
The freezing-ultrasonic sea water desalting device is characterized in that an ultrasonic transmitter is arranged outside the melting bin, the ultrasonic transmitter is connected with the melting bin through an ultrasonic waveguide, and an ultrasonic probe of the ultrasonic transmitter penetrates into the melting bin and extends out of the ultrasonic melting chamber.
The freezing-ultrasonic sea water desalting device comprises a hollow pipe, wherein a vertical pipe is coaxially arranged in the hollow pipe, a spiral conveying device is arranged in the vertical pipe, an ice conveying inlet is formed between the bottom ends of the hollow pipe and the vertical pipe and the bottom of an ice making barrel, the top end of the vertical pipe is fixed on the inner wall of the top of the ice making barrel, an ice conveying outlet is formed in the side face of the vertical pipe, one end of an ice conveying pipeline penetrates into the ice making barrel and is connected with the ice conveying outlet, and the other end of the ice conveying pipeline extends into a melting bin.
The freezing-ultrasonic sea water desalting device comprises an ice making barrel, a compressor, a water tank, an ice making tank, a water tank and a compressor.
The invention relates to a freezing-ultrasonic sea water desalting device, wherein a concentrated water tank is formed at the joint of the inner layer bottom surface and the inner wall surface of an ice making barrel along the circumferential direction, a concentrated water outlet I communicated with the concentrated water tank is arranged at the bottom of the inner layer, and a concentrated water outlet II communicated with the concentrated water outlet I is arranged at the bottom of an ice making chamber.
The invention relates to a freezing-ultrasonic sea water desalting device, wherein a control unit comprises a control panel and an ultrasonic controller, and a machine switch, a temperature control device, an ultrasonic frequency modulation knob and a concentrated water switch are arranged on the control panel.
The invention relates to a freezing-ultrasonic sea water desalting device, wherein the bottom of an ice making chamber is provided with an overflow pipe water outlet, one end of an overflow pipe is connected with a water tank, and the other end of the overflow pipe is connected with the overflow pipe water outlet.
The sea water desalting method with freezing-ultrasonic sea water desalting apparatus includes the following steps:
s1, starting the seawater desalination device, starting a fan through a control unit, cooling the collected air by a compressor, and then conveying the cooled air into an ice making barrel, wherein one part of seawater is cooled into ice, and the other part of unfrozen seawater is collected and discharged in a concentrated saline water form for subsequent treatment;
s2, starting a motor to drive a spiral ice scraping blade in the ice making barrel to rotate, and scraping ice on the inner wall of the ice making barrel through a blade;
s3, the motor continuously drives the spiral conveying device to convey ice upwards, and ice blocks generated in the ice making barrel are conveyed into an ultrasonic melting chamber in the melting bin through an ice conveying pipeline;
s4, primarily melting ice blocks in the ultrasonic melting chamber under the action of ultrasonic waves, discharging salt content remained in the ice bodies, and generating primarily melted water;
s5, discharging the initial melting water generated in the step S4, intercepting ice blocks in the initial melting water by an ice-water separation and leakage net, and then entering an initial melting water tank for subsequent treatment;
and S6, continuously melting the residual ice blocks in the ultrasonic melting chamber, intercepting the ice blocks again through an ice-water separation screen, allowing the initial melting water to enter an initial melting water tank after interception, and allowing the ice blocks to enter a fresh water tank for reheating and melting until qualified fresh water is obtained.
The invention has at least the following beneficial effects:
the seawater desalination device and the seawater desalination method using the seawater desalination device realize that the ice body vibrates by using the energy fluctuation of ultrasonic waves for the first time in the industry, the ice body obtains energy in the vibration and then is transmitted into the saline water bag, so that the discharge of residual salt in the ice body is completed in the initial stage of ice melting, the vibration frequency determines the size of the energy obtained by the ice body, the higher the frequency is, the larger the energy obtained by substances is, therefore, under the action of the ultrasonic energy, the opening of a residual salt channel in the ice body is accelerated, so that the residual salt is discharged more quickly and efficiently, the seawater desalination effect is ensured, and the desalination process period is shortened. In addition, the ultrasonic wave is utilized to accelerate the melting of ice, so that the whole device realizes the continuous process of seawater inlet at the front end and fresh water outlet at the rear end, the seawater desalination treatment efficiency is improved, the market competitiveness of the device is obviously improved, and considerable economic benefit and social benefit can be brought.
In a word, the fresh water is obtained by freezing the seawater and melting the sea ice by ultrasonic waves, and the seawater is changed into fresh water by utilizing the rejection of the freezing process to the salt in the seawater and the removal effect of the ultrasonic melting process to the residual salt in the sea ice. And moreover, the concentrated water in the freezing process can be further concentrated to produce chemical salt, and the heat generated by the seawater desalination device is used for melting sea ice, so that the energy-saving effect is improved to the maximum extent.
The freezing-ultrasonic sea water desalting apparatus and the sea water desalting method using the same according to the present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a freezing-ultrasonic seawater desalination plant according to the present invention;
FIG. 2 is a front perspective view schematically illustrating an ice making compartment of the freezing-ultrasonic seawater desalination apparatus according to the present invention;
FIG. 3 is a schematic view of the front perspective structure of the ice melting chamber in the freezing-ultrasonic seawater desalination apparatus of the present invention;
FIG. 4 is a schematic view of a front perspective structure of an ice making barrel in the freezing-ultrasonic seawater desalination apparatus of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a partial enlarged view of the portion B in FIG. 4;
FIG. 7 is a top view showing the fitting state of the main shaft, the deflector ring plate and the base in the freezing-ultrasonic seawater desalination apparatus of the present invention.
Detailed Description
As shown in fig. 1 to 7, the freezing-ultrasonic seawater desalination apparatus of the present invention comprises an ice making chamber 100, a de-icing chamber 200, and a control unit 300 disposed at the top of the ice making chamber 100 and the de-icing chamber 200, wherein the ice making chamber 100 and the de-icing chamber 200 are disposed in front of and behind each other.
The ice making bin 100 is provided with a machine water inlet 3 for an external water pump and is internally provided with a water tank 4 and an ice making barrel 7, the water tank 4 is provided with a water tank water inlet 5 and a water tank water outlet 6, the water tank water inlet 5 is connected with the machine water inlet 3 to store raw water, the water tank water outlet 6 is connected with a water inlet 9 at the top of the ice making barrel 7 to provide raw water for the ice making barrel 7, and seawater enters the water tank 4 through the external water pump and enters the ice making barrel 7 for freezing seawater to make ice. The water inlet 9 is provided with a water distribution system, the water distribution system comprises an inner layer 91 and an outer layer 92 which are fixed on the top of the ice making barrel 7 and are in a circular truncated cone shape and are coaxially assembled inside and outside, a circumferential interval 93 is formed between the inner layer 91 and the outer layer 92, water enters the circumferential interval 93 from the water inlet 9 and flows down along the inner layer 91, and then flows down along the inner wall of the ice making barrel 7 uniformly.
The ice making bin 100 is internally provided with a fan 18 and a compressor 17, a fan coil 19 is arranged in the fan 18, a fan air inlet 20 and a fan air outlet 21 are arranged, the compressor 17 is provided with a compressor air inlet 22 and a compressor air outlet 23, the ice making barrel 7 is of an inner-outer sandwich structure, a cavity 71 for containing cooling gas is formed between the inner layer and the outer layer, the bottom of the cavity 71 is provided with an ice making barrel cold air inlet 15, one side of the top close to the inner wall of the ice making bin 100 is provided with an ice making barrel cold air outlet 16, the compressor air inlet 22 is connected with the fan air outlet 21, and the compressor air outlet 23 is connected with the ice making barrel cold air inlet 15. Meanwhile, the cold air outlet 16 of the ice making barrel is connected with the air inlet 22 of the compressor, so that the air circulation exchange among the ice making barrel 7, the fan 18 and the compressor 17 is realized, and the energy conservation and the environmental protection are realized.
The spiral ice scraping blade 12 is arranged in the ice making barrel 7, the spiral ice scraping blade 12 comprises a hollow tube 72 which is coaxially connected to the middle of the ice making barrel 7 in a rotating mode and a plurality of blades 73 which are spirally arranged on the hollow tube 72, the top end of the hollow tube 72 extends out of the ice making barrel 7 to be fixedly connected with an output shaft of the motor 8 and rotates under the driving of the motor 8, and ice on the inner wall of the ice making barrel 7 is scraped through the blades 73. An ice conveying pipeline for conveying the scraped ice scraps is further connected between the ice making chamber 100 and the ice melting chamber 200, one end of the ice conveying pipeline is connected with the ice making barrel 7, and the other end of the ice conveying pipeline is connected with the melting chamber 40. Specifically, a vertical pipe 74 is coaxially installed in the hollow pipe 72, a spiral conveying device is arranged in the vertical pipe 74, the spiral conveying device comprises a main shaft 75 and a spiral blade 76 fixedly connected to the main shaft 75 through a connecting rod 78, the bottom end of the main shaft 75 is rotatably connected to a base 751 fixed at the bottom of the ice making barrel 7, and the top end of the main shaft extends out of the vertical pipe 74 and is fixedly connected with an output shaft of the motor 8. There is a space between the hollow tube 72, the bottom end of the vertical tube 74 and the bottom of the ice making tub 7, and the space forms the ice conveying inlet 13. The top end of the vertical pipe 74 is fixed on the inner wall of the top of the ice making barrel 7, the side surface of the vertical pipe is provided with an ice conveying outlet 14, the front end of the ice conveying pipeline penetrates into the ice making barrel 7 from the rear side to be connected with the ice conveying outlet 14, and the rear end of the ice conveying pipeline extends into the melting bin 40. The motor 8 is started to drive the hollow pipe 72 and the main shaft 75 to rotate simultaneously, ice cubes scraped in the ice making barrel 7 enter the vertical pipe 74 through the ice conveying inlet 13 and are conveyed upwards to the ice conveying outlet 14 through the spiral conveying device and enter the melting bin 40 through the ice conveying pipeline, and conveying of the ice cubes is efficient and convenient. The scraped ice enters an ice conveying pipeline, so that the waste caused by the fact that ice blocks on the inner wall of the ice making barrel 7 cannot enter the next step of primary melting treatment is avoided, and the improvement of the seawater treatment utilization rate is facilitated.
Preferably, a deflector ring plate 77 is arranged below the blade 73 at the lowest position, the deflector ring plate 77 is arranged in the circumferential direction of the ice making barrel 7, the center part of the deflector ring plate is low and fixed on the base 751, the edge of the deflector ring plate is high and fixed on the inner wall of the ice making barrel 7, and a circle of water permeable holes 771 are uniformly distributed in the circumferential direction at the position, close to the base 751, of the center part of the deflector ring plate 77. The guide ring plate 77 is arranged to facilitate the scraped ice scraps to slide down the inclined surface to the ice conveying inlet 13 under the action of self gravity.
Preferably, the outlet at the bottom end of the hollow tube 72 is constricted radially inwardly to facilitate collection of the scraped ice pieces to the ice delivery inlet 13. The butt joint of the inner bottom surface and the inner wall surface of the ice making barrel 7 forms a concentrated water tank 10 along the circumferential direction, the bottom of the inner layer is provided with a concentrated water outlet I11 communicated with the concentrated water tank 10, the bottom of the ice making chamber 100 is provided with a concentrated water outlet II 1 communicated with the concentrated water outlet I11, unfrozen seawater flows down through the water permeable holes 771 on the guide ring plate 77 in the form of concentrated salt water and is collected into the concentrated water tank 10, and is discharged out of the ice making barrel 7 through the concentrated water outlet I11 and then is discharged out of the ice making chamber 100 through the concentrated water outlet II 1.
The bottom of the ice making chamber 100 is provided with an overflow pipe water outlet 2, one end of the overflow pipe is connected with the water tank 4, and the other end of the overflow pipe is connected with the overflow pipe water outlet 2, so that the water in the water tank 4 is discharged out of the ice making chamber 100 through the overflow pipe when the water level is higher, and the water does not overflow to damage related parts.
The ice melting chamber 200 comprises a melting chamber 40, an ultrasonic melting chamber 38 is arranged in the melting chamber 40, and the ultrasonic melting chamber 38 carries out ultrasonic initial melting treatment on the sea ice conveyed by the ice conveying pipeline from the ice making chamber 100. The bottom of the ultrasonic melting chamber 38 is an inclined plane, and the lowest part of the ultrasonic melting chamber is provided with an ice-water mixture outlet 39, so that the ice-water mixture can be conveniently and timely discharged. An ice-water separation leakage net 33 is arranged in the ice melting chamber 200, and the ice-water separation leakage net 33 is positioned below the ice-water mixture outlet 39 so as to intercept the discharged sea ice in the ice-water mixture in time. Melt the storehouse 40 outside and be equipped with ultrasonic emitter 31, ultrasonic emitter 31 and melt between the storehouse 40 and pass through ultrasonic wave pipe 32 and be connected, send the ultrasonic wave to melt in the storehouse 40, supplementary ice melts, and simultaneously, ultrasonic probe 30 penetrates in melting the storehouse 40 and stretches out towards supersound melting chamber 38 to in time detect the ultrasonic frequency in melting the storehouse 40.
The initial melting water tank 34 is positioned below the ultrasonic melting chamber 38, and is used for collecting and storing concentrated water formed by initial melting of sea ice and interception by the ice-water separation strainer 33, and the initial melting water tank 34 is connected with an initial melting water drain pipe 35 so as to discharge the initial melting water for subsequent treatment.
A fresh water tank 36 is fixedly arranged in the ice melting chamber 200, the fresh water tank 36 is externally connected with the existing common hot melting equipment, and residual ice is heated and melted to obtain fresh water and store the fresh water. Preferably, the ice-water separation strainer 33 is disposed obliquely and the lowest end is located below the inlet of the fresh water tank 36, so that the intercepted ice cubes slide down the inclined surface into the fresh water tank 36. The fresh water tank 36 is provided with a fresh water outlet 37, which facilitates the discharge of fresh water for subsequent utilization.
The control unit 300 comprises a control panel 24 and an ultrasonic controller 29, wherein the control panel 24 adjusts the working state of the whole seawater desalination device, and the control panel 24 is provided with a machine switch 25, a temperature control device 26, an ultrasonic frequency modulation knob 27 and a concentrated water switch 28. The machine switch 25 controls the whole seawater desalination device to be turned on and off. The temperature control device 26 adjusts the cooling temperature of the entire apparatus. The ultrasonic frequency modulation knob 27 adjusts the ultrasonic intensity and the melting temperature in the melting bin 40. The concentrated water switch 28 controls the amount of the concentrated water, and controls the amount of the concentrated water by controlling the amount of the fed water, wherein the larger the fed water amount is, the more the amount of the concentrated water is, in order to reduce the amount of the fed water by the controller when the water yield does not meet the standard, thereby reducing the discharge amount of the concentrated water; when the water output is required, the water inlet quantity is increased by adjusting the concentrated water switch 28, so that the discharge of concentrated water is increased, and the yield of fresh water is increased. The ultrasonic controller 29 controls the ultrasonic frequency and temperature within the melting chamber 40.
The freezing-ultrasonic heating seawater desalination method using the freezing-ultrasonic heating seawater desalination device comprises the following steps:
s1, the seawater desalination device is started through the machine switch 25, the fan 18 is started through the control unit 300, collected air is cooled by the compressor 17 and then conveyed into the ice making barrel 7, a part of seawater is cooled into ice and separated out of salt, a part of seawater is wrapped by surrounding ice when the ice does not come, so that a saline water bag is formed, the remaining unfrozen seawater and the separated salt form concentrated saline water, the concentrated saline water is collected and discharged, and subsequent treatment is carried out, such as further concentration, so as to produce chemical salt, the further concentration production of the chemical salt can be carried out by referring to the existing mature process, and the further concentration is not repeated; the step realizes the primary removal of salt in the seawater;
s2, starting the motor 8 to drive the spiral ice scraping blade 12 in the ice making barrel 7 to rotate, scraping off the ice on the inner wall of the ice making barrel 7 through the blade, and enabling the scraped ice and the ice blocks in the ice making barrel 7 to fall into the ice conveying inlet 13;
s3, the motor 8 continues to work, the main shaft 75 is driven to rotate, ice blocks are conveyed upwards to the ice conveying outlet 14 through the helical blade 76, and the ice blocks enter the ultrasonic melting chamber 38 through the ice conveying pipeline;
s4, the ultrasonic controller 29 is started through the control unit 300, the ultrasonic frequency and the temperature in the melting bin 40 are controlled, the ice blocks in the ultrasonic melting chamber 38 are initially melted under the action of ultrasonic waves to generate initial melting water, and meanwhile, the saline water bag in the ice blocks is opened at an accelerated speed, so that the salt content remained in the ice blocks is discharged firstly;
preferably, the ice melting is assisted by starting the ultrasonic emitter 31, and the salt remaining in the ice block is analyzed more thoroughly;
s5, discharging the initial melting water (namely the ice-water mixture) generated in the step S4 through an ice-water mixture outlet 39, intercepting ice blocks in the initial melting water by an ice-water separation leakage net 33, and then entering an initial melting water tank 34 for subsequent treatment; in the step, the intercepted ice blocks enter a fresh water tank 36 and are melted by a common electric heating melting device;
s6, continuously melting the ice blocks remained in the ultrasonic melting chamber 38, intercepting the melted ice-water mixture by the ice-water separation leakage net 33 again, discharging the initial melting water into the initial melting water tank 34 through the grids on the ice-water separation leakage net 33 after interception, and enabling the ice blocks to enter the fresh water tank 36 to be heated and melted again until qualified fresh water is obtained.
The invention utilizes the ultrasonic wave to accelerate the opening of the ice internal channel, so that the residual salt in the ice body can be quickly discharged, the melting rate of the ice body is accelerated, and the efficiency of the whole device is improved.
The ultrasonic frequency used in this embodiment is 20kHz, and the heating principle thereof has two principles: one is the resonance principle, according to the molecular dynamics theory, a substance is composed of a large number of molecules, and the molecules are in motion never stopping, and the frequency of the molecular motion is very high. Therefore, when the frequency of the ultrasonic wave is the same as the natural frequency of the ice molecules, the resonance of the ice molecules can be caused, so that the vibration amplitude of the ice molecules is greatly increased, and the increased vibration amplitude of the ice molecules collides with other salt molecules close to the ice molecules, so that the intensity of random movement of a large number of molecules in the whole ice body is increased, and the temperature is rapidly increased; secondly, the thermodynamics principle, the essence of temperature is the physical quantity of the intensity of the random movement of a large number of molecules in a constant substance, which is only the cold and hot degree displayed on the surface phenomenon, and the temperature is higher when the ice molecules move more intensely.
In a word, the existing freezing method has fewer seawater desalination devices, and the invention freezes seawater based on the snowing machine and then carries out oscillation heating and melting on sea ice to form a continuous seawater ice making and seawater desalination device, thereby being beneficial to solving the problem of shortage of fresh water resources.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A freezing-ultrasonic wave sea water desalination device is characterized in that: the ice-making device comprises an ice-making chamber (100), an ice-melting chamber (200) and a control unit (300) electrically connected to the tops of the ice-making chamber and the ice-melting chamber, wherein a water tank (4), an ice-making barrel (7), a fan (18) and a compressor (17) are arranged in the ice-making chamber (100), the water tank (4) stores seawater and conveys the seawater to the ice-making barrel (7), the ice-making barrel (7) is externally connected with the fan (18) and the compressor (17) in an external mode and carries out air circulation exchange to freeze the seawater input in the ice-making barrel, an ultrasonic melting chamber (38) is arranged in the ice-melting chamber (200), and the ultrasonic melting chamber (38) is connected with the ice-making barrel (7) and carries out ultrasonic melting treatment on ice blocks formed in the ultrasonic melting chamber to obtain fresh water.
2. The freeze-ultrasonic seawater desalination plant of claim 1, wherein: be provided with spiral in system ice bucket (7) and scrape ice blade (12), spiral is scraped ice blade (12) and is included coaxial rotation and connect hollow tube (72) in system ice bucket (7) and spirally arranged a plurality of blade (73) on this hollow tube (72), the top of hollow tube (72) stretches out system ice bucket (7) outer with the output shaft fixed connection of motor (8).
3. The freeze-ultrasonic seawater desalination plant of claim 2, wherein: the ice melting chamber (200) comprises a melting chamber (40), the ultrasonic melting chamber (38) is positioned in the melting chamber (40), an ice-water mixture outlet (39) is formed in the bottom of the ultrasonic melting chamber, a primary melting water tank (34) is arranged below the ice-water mixture outlet (39), and an ice-water separation leakage net (33) is arranged between the ultrasonic melting chamber (38) and the primary melting water tank (34).
4. The freeze-ultrasonic seawater desalination plant of claim 3, wherein: an ultrasonic transmitter (31) is arranged outside the melting bin (40), the ultrasonic transmitter (31) is connected with the melting bin (40) through an ultrasonic guide tube (32), and an ultrasonic probe (30) of the ultrasonic transmitter penetrates into the melting bin (40) and extends out towards the ultrasonic melting chamber (38).
5. The freeze-ultrasonic seawater desalination plant of claim 4, wherein: the ice melting device is characterized in that a vertical pipe (74) is coaxially arranged in the hollow pipe (72), a spiral conveying device is arranged in the vertical pipe (74), an ice conveying inlet (13) is formed between the bottom ends of the hollow pipe (72) and the vertical pipe (74) and the bottom of the ice making barrel (7), an ice conveying outlet (14) is formed in the side face of the top end of the vertical pipe (74) and fixed to the inner wall of the top of the ice making barrel (7), one end of an ice conveying pipeline penetrates into the ice making barrel (7) and is connected with the ice conveying outlet (14), and the other end of the ice conveying pipeline extends into the melting bin (40).
6. The freeze-ultrasonic seawater desalination apparatus of any one of claims 1-5, wherein: the ice making barrel (7) is of an inner-outer interlayer structure, a cavity (71) used for containing cooling gas is formed between the inner layer and the outer layer, and the cavity (71) is connected with the compressor (17).
7. The freeze-ultrasonic seawater desalination plant of claim 6, wherein: a concentrated water tank (10) along the circumferential direction is formed at the joint of the inner layer bottom surface and the inner wall surface of the ice making barrel (7), a concentrated water outlet I (11) communicated with the concentrated water tank (10) is arranged at the bottom of the inner layer, and a concentrated water outlet II (1) communicated with the concentrated water outlet I (11) is arranged at the bottom of the ice making chamber (100).
8. The freeze-ultrasonic seawater desalination plant of claim 7, wherein: the control unit (300) comprises a control panel (24) and an ultrasonic controller (29), wherein a machine switch (25), a temperature control device (26), an ultrasonic frequency modulation knob (27) and a concentrated water switch (28) are arranged on the control panel (24).
9. The freeze-ultrasonic seawater desalination plant of claim 8, wherein: an overflow pipe water outlet (2) is formed in the bottom of the ice making chamber (100), one end of an overflow pipe is connected with the water tank (4), and the other end of the overflow pipe is connected with the overflow pipe water outlet (2).
10. A seawater desalination method using the freezing-ultrasonic seawater desalination apparatus according to any one of claims 2 to 9, characterized in that: the method comprises the following steps:
s1, starting the seawater desalination device, starting a fan (18) through a control unit (300), cooling the collected air by a compressor (17), and then conveying the cooled air into an ice making barrel (7), wherein one part of seawater is cooled into ice, and the other part of unfrozen seawater is collected and discharged in a concentrated saline water form for subsequent treatment;
s2, starting a motor (8) to drive a spiral ice scraping blade (12) in the ice making barrel (7) to rotate, and scraping off ice on the inner wall of the ice making barrel (7) through a blade;
s3, the motor (8) continues to drive the spiral conveying device to convey ice upwards, and ice blocks generated in the ice making barrel (7) are conveyed into the ultrasonic melting chamber (38) in the melting bin (40) through the ice conveying pipeline;
s4, primarily melting the ice blocks in the ultrasonic melting chamber (38) under the action of ultrasonic waves, discharging salt remaining in the ice bodies, and generating primarily melted water;
s5, discharging the primary molten water generated in the step S4, intercepting ice blocks in the primary molten water by an ice-water separation leakage net (33), and then entering a primary molten water tank (34) for subsequent treatment;
s6, continuously melting the ice blocks remained in the ultrasonic melting chamber (38), intercepting the ice blocks again through the ice-water separation leakage net (33), after interception, enabling the initial melting water to enter the initial melting water tank (34), and enabling the ice blocks to enter the fresh water tank (36) to be heated and melted again until qualified fresh water is obtained.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092072U (en) * | 1990-10-10 | 1992-01-01 | 芜湖制冷工程公司 | High-efficiency ice crystal generator for making granular ice |
| CN2134392Y (en) * | 1992-09-22 | 1993-05-26 | 孙工 | Low temp. seawater desalter |
| CN2274324Y (en) * | 1996-09-20 | 1998-02-11 | 上海交通大学 | Sea-water ice-making machine for fishing boat |
| CN2427782Y (en) * | 2000-05-16 | 2001-04-25 | 上海交通大学 | Sea water particle ice producing machine |
| CN2665631Y (en) * | 2003-12-04 | 2004-12-22 | 上海交通大学 | Copper tubes coiling cooled compact anticorrosion ice-making machine |
| CN101624224A (en) * | 2009-08-13 | 2010-01-13 | 上海交通大学 | Desalting method with phase change for indirectly freeze seawater by using of liquefied natural gas refrigeration capacity |
| CN204187902U (en) * | 2014-10-16 | 2015-03-04 | 深圳市精泽机电有限公司 | A kind of ice machine with screw skates |
| CN107175002A (en) * | 2017-07-17 | 2017-09-19 | 段遵虎 | A kind of energy saving and environment friendly sewage disposal device based on circulating mixing principle |
| CN107265593A (en) * | 2017-08-06 | 2017-10-20 | 长沙善道新材料科技有限公司 | A kind of energy saving and environment friendly sewage disposal device for the principle that fed based on quantitative and even |
| CN108585078A (en) * | 2018-05-22 | 2018-09-28 | 韩银兰 | A kind of sewage disposal equipment of half engagement feed type of rack-and-pinion |
| CN208920661U (en) * | 2018-08-02 | 2019-05-31 | 深圳市艾斯达制冷设备有限公司 | A kind of energy-saving oil temperature control film-making ice maker |
| CN110407289A (en) * | 2019-06-25 | 2019-11-05 | 中国矿业大学 | Seawater desalination based on ultrasound and natural air conditioner refrigerating plant and method |
| CN210004641U (en) * | 2019-05-22 | 2020-01-31 | 深圳市爱思诺制冷设备有限公司 | marine seawater flake ice machine |
-
2021
- 2021-07-14 CN CN202110795284.8A patent/CN113443772B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092072U (en) * | 1990-10-10 | 1992-01-01 | 芜湖制冷工程公司 | High-efficiency ice crystal generator for making granular ice |
| CN2134392Y (en) * | 1992-09-22 | 1993-05-26 | 孙工 | Low temp. seawater desalter |
| CN2274324Y (en) * | 1996-09-20 | 1998-02-11 | 上海交通大学 | Sea-water ice-making machine for fishing boat |
| CN2427782Y (en) * | 2000-05-16 | 2001-04-25 | 上海交通大学 | Sea water particle ice producing machine |
| CN2665631Y (en) * | 2003-12-04 | 2004-12-22 | 上海交通大学 | Copper tubes coiling cooled compact anticorrosion ice-making machine |
| CN101624224A (en) * | 2009-08-13 | 2010-01-13 | 上海交通大学 | Desalting method with phase change for indirectly freeze seawater by using of liquefied natural gas refrigeration capacity |
| CN204187902U (en) * | 2014-10-16 | 2015-03-04 | 深圳市精泽机电有限公司 | A kind of ice machine with screw skates |
| CN107175002A (en) * | 2017-07-17 | 2017-09-19 | 段遵虎 | A kind of energy saving and environment friendly sewage disposal device based on circulating mixing principle |
| CN107265593A (en) * | 2017-08-06 | 2017-10-20 | 长沙善道新材料科技有限公司 | A kind of energy saving and environment friendly sewage disposal device for the principle that fed based on quantitative and even |
| CN108585078A (en) * | 2018-05-22 | 2018-09-28 | 韩银兰 | A kind of sewage disposal equipment of half engagement feed type of rack-and-pinion |
| CN208920661U (en) * | 2018-08-02 | 2019-05-31 | 深圳市艾斯达制冷设备有限公司 | A kind of energy-saving oil temperature control film-making ice maker |
| CN210004641U (en) * | 2019-05-22 | 2020-01-31 | 深圳市爱思诺制冷设备有限公司 | marine seawater flake ice machine |
| CN110407289A (en) * | 2019-06-25 | 2019-11-05 | 中国矿业大学 | Seawater desalination based on ultrasound and natural air conditioner refrigerating plant and method |
Non-Patent Citations (1)
| Title |
|---|
| 庄友明: "《制冷装置设计（第3版）》", 31 August 2017, 厦门大学出版社 * |
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