Storing and stirring device for ice slurry preparation and seawater desalination

Abstract

The invention discloses a storage stirring device for ice slurry preparation and seawater desalination, and belongs to the technical field of renewable new energy technologies. The storage stirring device for ice slurry preparation and sea water desalination comprises a water storage tank, a stirring and filtering mechanism and a control system, the stirring and filtering mechanism is composed of a motor, a rotating shaft and rotating fan blades, and the control system is used for switching the movement mode of the rotating shaft: the fan blades are opened during rotating movement to stir and mix ice slurry to prevent ice water from layering; the fan blades are closed during lifting movement to fish and filter ice particles, so that the problems of unit shutdown and low discharge efficiency caused by blockage of a filter element by generated large-particle ice crystals are avoided, efficient combination of ice slurry preparation and seawater desalination is realized, the automation degree and the energy utilization rate are improved, and the ice slurry preparation and seawater desalination device is particularly suitable for islands and coastal regions.

Description

Technical Field

[0001] This invention relates to the field of renewable energy technology, specifically to a storage and stirring device for ice slurry preparation and seawater desalination. Background Technology

[0002] Seawater source heat pumps, as a renewable energy utilization technology, use seawater as a low-temperature heat source. They are not only used for winter heating but also for producing ice slurry. Ice slurry is a mixed solution composed of liquid water and ice crystal particles. As a novel heat transfer medium, ice slurry has received widespread attention and research in many fields in recent years, such as food cold chain preservation and low-temperature storage and processing of biopharmaceuticals. Ice slurry has broad application prospects in these areas. Seawater ice slurry can also be used in seawater desalination projects. Because the crystal structure of ice cannot accommodate most salt ions after seawater freezes, the salt content of the ice particles in ice slurry is very low. After filtering out the ice crystal particles, it is very suitable for seawater desalination, which has profound significance for island and coastal port projects.

[0003] However, as the ice slurry and the seawater source heat pump continue to exchange heat, the ice content of the ice slurry gradually increases, the solid-liquid balance of the ice slurry will be broken, and it will easily accumulate on the filter element and block the filter element, thereby blocking the water circulation of the unit and causing the unit to shut down and fail to operate normally; after the ice slurry is prepared, it is easy to produce ice water stratification, which cannot be discharged efficiently. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems in the prior art and provide a storage stirring device for ice slurry preparation and seawater desalination.

[0005] This invention provides a storage and stirring device for ice slurry preparation and seawater desalination, comprising a storage tank for storing the prepared ice slurry. The bottom of the storage tank is a thickened, sunken structure, and a filter element is installed inside the sunken structure. The storage and stirring device further includes: a stirring and filtering mechanism, placed inside the storage tank, comprising a rotating shaft, a support block, and several rotating blades. The rotating shaft is vertically inserted into the storage tank, and the support block is fixedly connected to the bottom of the rotating shaft. The several rotating blades are rotatably connected to the side of the support block via rotating rods, and each of the rotating rods is located inside the support block and has its own driver connected to one end; a driving assembly, placed at the top of the storage tank, comprising a vertical adjustment component and a rotation driving component, wherein the vertical lifting component is located at the top of the storage tank. The top of the water storage tank is connected to the top of the rotating shaft to drive the rotating shaft to move vertically. The rotating component is placed on the top of the water storage tank to drive the rotating shaft to rotate. The controller is electrically connected to the operating platform, the driver, the vertical adjustment component, and the rotating drive component. When it is necessary to stir the ice slurry, the controller controls the rotating drive component to drive the rotating shaft to rotate, and at the same time controls the driver to open the blades of several rotating fan blades to stir and mix the ice slurry. When it is necessary to remove the target ice particles, the controller controls the vertical adjustment component to drive the rotating shaft to lift, and at the same time controls the driver to close several rotating fan blades to retrieve and filter the target ice particles. There is a gap between adjacent rotating fan blades when they are closed.

[0006] Preferably, the drive assembly includes a reversing gear set and a motor. The motor is fixedly connected to the top of the water storage tank. The reversing gear set includes a rotating gear set and a lifting gear set. The vertical adjustment component includes a lifting gear set. The rotating drive component includes a rotating gear set, which includes a first bevel gear and a second bevel gear. The first bevel gear is fixedly connected to the top of the rotating shaft and meshes with the second bevel gear on one side. The motor is fixedly mounted on the top of the water storage tank. A first meshing gear is slidably sleeved on the output shaft of the motor. The output shaft of the motor is rotatably connected to the second bevel gear. A groove is provided on the side of the second bevel gear near the motor. A block matching the groove is fixedly connected to the side of the first meshing gear near the second bevel gear.

[0007] Preferably, the lifting gear set includes a first spur gear and a second spur gear. The rotating shaft is provided with a plurality of lifting grooves evenly distributed from top to bottom. The tooth end of the first spur gear is placed in the lifting groove. The second spur gear meshes with the first spur gear. A transmission gear column is fixedly connected to one side of the second spur gear. The transmission gear column meshes with the first transmission gear through a second meshing gear.

[0008] Preferably, the side of the water storage tank is provided with an openable and closable ice discharge window, which is located at the top of the lifting stroke of the rotating fan blade, and is used to discharge the scooped-up solid ice particles in the lifting motion mode.

[0009] Preferably, the bottom of the water storage tank is a thickened sunken structure, with a circulating water pipe connected to the lower side wall and an ice discharge pipe at the bottom.

[0010] Preferably, the inlet of the circulating water pipe is equipped with a filter element, and the filter element is installed at a position lower than the ice drain outlet at the bottom of the storage water tank.

[0011] Preferably, it also includes a water inlet pipe connected to the upper part of the storage water tank, and both the water inlet pipe and the circulating water pipe are equipped with temperature sensors and flow sensors.

[0012] Compared with the prior art, the beneficial effects of the present invention are: In this embodiment, in the stirring mode, the controller drives the rotating shaft to rotate through the rotating drive component, and at the same time controls the driver to open the rotating fan blades, so that the rotating fan blades form a uniform stirring force in the storage tank to break the density difference between ice particles and seawater in the ice slurry, and avoid the stratification phenomenon caused by the floating or sinking of ice particles. Through continuous stirring, the ice slurry maintains the uniformity of solid-liquid mixing, ensuring that ice particles can be efficiently discharged during the ice removal process.

[0013] In the retrieval and filtration mode, the controller switches to vertical adjustment to drive the rotating shaft upwards, while simultaneously controlling the actuator to close the rotating fan blades, forming a gapped filter structure. The closed rotating fan blades scoop up ice particles from the bottom of the storage tank and lift them to a higher position via the lifting motion; the gaps between adjacent rotating fan blades allow liquid water to filter out, while solid ice particles are trapped. To prevent ice particles from accumulating directly on the filter element at the bottom of the storage tank, the thickened, submerged storage tank structure further optimizes the ice particle settling path. Combined with the low-position installation of the filter element, this reduces the risk of blockage in the circulating water path. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention during stirring.

[0015] Figure 2 This is a three-dimensional structural diagram of the stirring and filtering mechanism of the present invention during lifting.

[0016] Figure 3 This is a schematic diagram of the reversing gear set and the rotating gear set in the present invention.

[0017] Figure 4 This is a schematic diagram of the reversing gear set and the lifting gear set in the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Storage water tank; 2. Stirring and filtering mechanism; 21. Motor; 22. Rotating shaft; 23. Rotating fan blade; 3. Reversing gear set; 31. Rotating gear set; 311. First bevel gear; 312. Second bevel gear; 313. First meshing gear; 32. Lifting gear set; 321. First spur gear; 322. Second spur gear; 323. Second meshing gear; 324. Transmission gear; 4. Ice discharge window; 5. Circulating water pipe; 6. Ice discharge pipe; 7. Filter element; 8. Water inlet pipe; 9. Temperature sensor; 10. Lifting trough. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-4 To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art.

[0020] The terms "first," "second," and similar words used in the patent application specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in this invention are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams.

[0021] This invention provides a storage and stirring device for ice slurry preparation and seawater desalination, such as... Figures 1-2The system includes a storage tank 1 for storing the prepared ice slurry. The bottom of the storage tank 1 is a thickened, sunken structure, and a filter element 7 is installed inside the sunken structure. The storage stirring device also includes: a stirring and filtering mechanism 2, placed inside the storage tank 1, including a rotating shaft 22, a support block, and several rotating fan blades 23. The rotating shaft 22 is vertically inserted into the storage tank 1, the support block is fixedly connected to the bottom of the rotating shaft 22, and several rotating fan blades 23 are rotatably connected to the side of the support block via rotating rods. Each of the rotating rods is placed inside the support block and has its own driver connected to one end; and a driving assembly, placed at the top of the storage tank 1, including a vertical adjustment component and a rotating drive component. The vertical lifting component is placed at the top of the storage tank 1 and rotates with the rotating shaft 23. The top of the rotating shaft 22 is connected to drive the rotating shaft 22 to move in the vertical direction. The rotating component is placed on the top of the water storage tank 1 to drive the rotating shaft 22 to rotate. The controller, operating platform, driver, vertical adjustment component and rotating drive component are all electrically connected to the controller. When it is necessary to stir the ice slurry, the controller controls the rotating drive component to drive the rotating shaft 22 to rotate, and at the same time controls the driver to open the blades of several rotating fan blades 23 to stir and mix the ice slurry. When it is necessary to remove the target ice particles, the controller controls the vertical adjustment component to drive the rotating shaft 22 to lift, and at the same time controls the driver to close several rotating fan blades 23 to retrieve and filter the target ice particles. There is a gap between adjacent rotating fan blades 23 when they are closed.

[0022] In this embodiment, in the stirring mode, the controller drives the rotating shaft 22 to rotate through the rotating drive component, and at the same time controls the driver to open the rotating fan blade 23, so that the rotating fan blade 23 forms a uniform stirring force in the water storage tank 1 to break the density difference between ice particles and seawater in the ice slurry, and avoid the stratification phenomenon caused by the floating or sinking of ice particles. Through continuous stirring, the ice slurry maintains the uniformity of solid-liquid mixing, ensuring that ice particles can be efficiently discharged during the ice discharge process.

[0023] In the retrieval and filtration mode, the controller switches to vertical adjustment to drive the rotating shaft 22 to lift, while simultaneously controlling the actuator to close the rotating fan blades 23, forming a filter screen structure with gaps. The closed rotating fan blades 23 retrieve ice particles from the bottom of the storage tank 1 and lift them to a higher position through the lifting motion; the gaps between adjacent rotating fan blades 23 allow liquid water to filter out, while solid ice particles are trapped. To prevent ice particles from directly accumulating on the filter element 7 at the bottom of the storage tank, the thickened submerged storage tank 1 structure further optimizes the ice particle settling path, and the low-position installation of the filter element 7 reduces the risk of blockage in the circulating water path 5.

[0024] Preferred, such as Figures 1-4As shown, the drive assembly includes a reversing gear set 3 and a motor 21. The motor 21 is fixedly connected to the top of the water storage tank 1. The reversing gear set 3 includes a rotating gear set 31 and a lifting gear set 32. The vertical adjustment component includes the lifting gear set 32. The rotating drive component includes the rotating gear set 31. The rotating gear set 31 includes a first bevel gear 311 and a second bevel gear 312. The first bevel gear 311 is fixedly connected to the top of the rotating shaft 22 and meshes with the second bevel gear 312 on one side. The motor 21 is fixedly mounted on the top of the water storage tank 1. A first meshing gear 313 is slidably sleeved on the output shaft of the motor 21. The output shaft of the motor 21 is rotatably connected to the second bevel gear 312. The second bevel gear 312 has an insert groove on the side near the motor 21. The first meshing gear 313 has an insert block that matches the insert groove fixedly connected on the side near the second bevel gear 312.

[0025] In this embodiment, by setting a reversing gear set 3, including a rotary gear set 31 and a lifting gear set 32, the transmission efficiency and mode switching reliability of the device are enhanced. The rotary gear set 31 adopts a bevel gear structure to ensure that the power of the motor 21 is smoothly transmitted to the rotating shaft 22, while the lifting gear set 32, through the design of a flat gear and a lifting groove 10, keeps the rotating shaft 22 stable during lifting and lowering movements, avoiding jamming. Specifically, the interlocking design of the first meshing gear 313 and the second bevel gear 312 enables rapid engagement and disengagement, facilitating flexible switching of motion modes by the control system. This gear set structure not only optimizes the spatial layout and reduces mechanical wear, but also improves the durability of the device during long-term operation, making it suitable for industrial environments with high-frequency switching, thereby ensuring the smooth operation of the ice slurry dredging and stirring processes.

[0026] Preferred, such as Figures 3-4 The lifting gear set 32 ​​shown includes a first spur gear 321 and a second spur gear 322. The rotating shaft 22 is evenly provided with a plurality of lifting grooves 10 from top to bottom. The tooth end of the first spur gear 321 is placed in the lifting groove 10. The second spur gear 322 meshes with the first spur gear 321. A transmission gear 324 is fixedly connected to one side of the second spur gear 322. The transmission gear 324 meshes with the first transmission gear 313 through the second meshing gear 323.

[0027] In this embodiment, the precision and stability of the lifting motion of the rotating shaft 22 are ensured by the cooperation of the first spur gear 321, the second spur gear 322, and the lifting groove 10. The lifting groove 10 is evenly distributed on the rotating shaft 22, forming a screw-like structure when meshing with the spur gears, achieving linear lifting and avoiding swaying or deviation during ice particle retrieval. The addition of the transmission gear 324 and the second meshing gear 323 further optimizes the power transmission path and reduces energy loss. This design improves the efficiency of the device in the retrieval and filtration mode, and is especially suitable for high-concentration ice slurry environments. It effectively prevents ice particles from falling back into the water tank, ensures the complete discharge of solid ice particles, and enhances the separation effect of the seawater desalination process.

[0028] Preferred, such as Figures 1-2 As shown, the side of the water storage tank 1 is provided with an openable and closable ice discharge window 4. The ice discharge window 4 is located at the top of the lifting stroke of the rotating fan blade 23 and is used to discharge the scooped-up solid ice particles in the lifting motion mode.

[0029] In this embodiment, an openable and closable ice-discharging window 4 is provided on the side of the storage tank 1 and positioned at the top of the lifting stroke of the rotating fan blade 23, thus achieving automated ice particle discharge. After the rotating shaft 22 lifts and collects the ice particles, the fan blade rises to the window position, and the window opens to directly discharge the ice particles without the need for additional equipment intervention. This greatly reduces manual operation costs, avoids blockage problems caused by ice slurry accumulation in the tank, and improves ice discharge efficiency. The window design also facilitates maintenance and cleaning, making it particularly suitable for continuous seawater desalination systems, ensuring the continuity and hygiene of the ice slurry preparation process.

[0030] Preferred, such as Figures 1-2 As shown, the bottom of the water storage tank 1 is a thickened sunken structure, with a circulating water pipe 5 connected to the lower side wall and an ice discharge pipe 6 at the bottom.

[0031] In this embodiment, a thickened, submerged design is adopted, combined with the circulating water pipe 5 and the ice discharge pipe 6, to improve the efficiency of ice-water separation and discharge. The submerged structure facilitates the natural settling of ice particles, making it easy to discharge them centrally through the ice discharge pipe 6; the circulating water pipe 5 is located on the side wall, enabling the recycling of unfrozen seawater and reducing resource waste. This design effectively solves the problem of ice slurry stratification, ensuring efficient separation of fresh water and ice particles, while enhancing the stability and pressure resistance of the device. It is suitable for large-scale seawater desalination projects, improving the overall energy utilization rate. The circulating water pipe 5 is connected to a seawater source heat pump to continue heat exchange and generate ice slurry.

[0032] Preferred, such as Figures 1-2 As shown, the inlet of the circulating water pipe 5 is equipped with a filter element 7, and the installation position of the filter element 7 is lower than the ice discharge port at the bottom of the storage water tank 1.

[0033] In this embodiment, by installing the filter element 7 at the inlet of the circulating water pipe 5 lower than the ice discharge port, the problem of ice slurry blockage is effectively prevented. The low-positioning of the filter element 7 avoids direct contact with ice particles, ensuring that only liquid water enters the circulation system, thereby protecting the heat pump unit from the risk of shutdown. This design extends the service life of the filter element 7, reduces maintenance frequency, and improves the purity of seawater desalination. It is particularly suitable for environments with high ice content, ensuring the long-term stable operation of the device.

[0034] Preferred, such as Figures 1-2 As shown, it also includes an inlet pipe 8 connected to the upper part of the storage water tank 1. Temperature sensor 9 and flow sensor are installed on both the inlet pipe 8 and the circulating water pipe 5.

[0035] In this embodiment, intelligent monitoring of the device is achieved by installing temperature sensors 9 and flow sensors on the inlet pipe 8 and the circulating water pipe 5. The sensors collect data in real time and feed it back to the control system, facilitating the adjustment of motor 21 operating parameters and optimizing stirring and scooping modes. This intelligent control improves the precision of ice slurry preparation, avoids overcooling or uneven ice slurry distribution, and can also provide early warnings of potential faults, enhancing the system's adaptability. It is suitable for temperature-sensitive applications, such as in the biopharmaceutical field, improving the reliability and safety of the device.

[0036] The method of using the storage and stirring device for ice slurry preparation and seawater desalination of the present invention is as follows: When the motor 21 is started, the control system defaults to rotating the rotating shaft 22. At this time, the blades of the rotating fan 23 open, and the seawater and ice slurry mixture is evenly stirred in the water storage tank 1 to prevent the ice water from separating and to ensure the consistency of the ice slurry. During the stirring process, the temperature sensor 9 and the flow sensor monitor the parameters in real time and optimize the operating status.

[0037] When it is necessary to separate ice particles, the control system switches the motor 21 mode, causing the rotating shaft 22 to switch to lifting motion. The blades close to form a scooping net, which scoops up solid ice particles from the bottom of the water tank. The lifting motion is smoothly lifted by the reversing gear set 3, and the ice particles are carried to the ice discharge window 4.

[0038] The ice discharge window 4 opens automatically to discharge the collected ice particles from the device for seawater desalination or other purposes; at the same time, the circulating water pipe 5 and the filter element 7 ensure the recycling of liquid water, and the bottom ice discharge pipe 6 treats residual ice slurry. The whole process is completed automatically, ensuring continuous and efficient operation.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reserve agitating device for ice slurry production and seawater desalination, comprising a reserve tank for storing the produced ice slurry, characterized in that, The bottom of the water storage tank is a thickened sunken structure, a filter core is installed in the sunken structure, and the reserve stirring device further comprises: A stirring and filtering mechanism is arranged in the water storage tank and comprises a rotating shaft, a bearing block and a plurality of rotating blades. The rotating shaft is vertically inserted into the water storage tank. The bearing block is fixedly connected to the bottom of the rotating shaft. A plurality of rotating blades are rotatably connected to the side of the bearing block through rotating rods. One end of each rotating rod is connected to a respective driver. A driving assembly is arranged on the top of the water storage tank and comprises a vertical adjusting member and a rotating driving member. The vertical adjusting member is arranged on the top of the water storage tank and is connected to the top end of the rotating shaft to drive the rotating shaft to move in the vertical direction. The rotating member is arranged on the top of the water storage tank to drive the rotating shaft to rotate. A controller is electrically connected to the operating platform, the drivers, the vertical adjusting member and the rotating driving member. When the ice slurry needs to be stirred, the controller drives the rotating shaft to rotate through the rotating driving member and opens the blades of the rotating blades through the drivers to stir and mix the ice slurry. When the target ice particles need to be taken out, the controller drives the rotating shaft to lift through the vertical adjusting member and closes the rotating blades through the drivers to fish the target ice particles. Adjacent rotating blades have gaps between them when they are closed.

2. A reserve agitator for slush preparation and desalination of sea water as claimed in claim 1 wherein, The driving assembly comprises a reversing gear set and a motor. The motor is fixedly connected to the top of the water storage tank. The reversing gear set comprises a rotating gear set and a lifting gear set. The vertical adjusting member comprises the lifting gear set. The rotating driving member comprises the rotating gear set. The rotating gear set comprises a first bevel gear and a second bevel gear. The first bevel gear is fixedly connected to the top of the rotating shaft and is meshed with the second bevel gear on one side. A motor is fixedly arranged on the top of the water storage tank. A first meshing gear is slidably arranged on the output shaft of the motor. The output shaft of the motor is rotatably connected to the second bevel gear. A recess groove is formed on the side of the second bevel gear close to the motor. A recess block matching the recess groove is fixedly connected to the side of the first meshing gear close to the second bevel gear.

3. A reserve agitator for slush preparation and desalination of sea water as claimed in claim 2 wherein, The lifting gear set comprises a first flat gear and a second flat gear. A plurality of lifting grooves are uniformly formed in the rotating shaft from top to bottom. The tooth end of the first flat gear is arranged in the lifting groove. The second flat gear is meshed with the first flat gear. A transmission tooth column is fixedly connected to the side of the second flat gear. The transmission tooth column is meshed with the first meshing gear through a second meshing gear.

4. A reserve agitator for slush preparation and desalination of sea water as claimed in claim 1 wherein, A closable ice discharge window is arranged on the side of the water storage tank. The ice discharge window is located at the top end of the lifting stroke of the rotating blades.

5. A reserve agitator for slush preparation and desalination of sea water as claimed in claim 1 wherein, A circulating water pipe is connected to the side wall of the lower part of the water storage tank. An ice discharge pipe is arranged at the bottom of the water storage tank.

6. A reserve agitator for slush preparation and desalination of sea water as claimed in claim 5 wherein, The filter core is connected to the water inlet of the circulating water pipe. The installation position of the filter core is lower than the ice discharge pipe at the bottom of the water storage tank.

7. A reserve agitator for slush preparation and desalination of sea water as claimed in claim 5 wherein, The water inlet pipe and the circulating water pipe are provided with temperature sensors and flow sensors, and the circulating water pipe and the water inlet pipe are communicated to form a circulating pipeline.

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