Manual sea ice making device and ice making method

Abstract

The invention relates to the technical field of simulation tests, in particular to an artificial sea ice making device and method, and the device comprises a control assembly, a refrigeration assembly, a saline water injection assembly, a freezing box and a drainage assembly. The control assembly controls the drainage assembly to discharge saline water through the drainage port in the freezing process, and dynamic control over the salinity of the generated sea ice is achieved. The control assembly injects cold air and saline water into the freezing box in stages through the refrigeration assembly and the saline water injection assembly, the saline water is discharged by controlling the drainage assembly, and therefore layered ice making is achieved. Staged and layered ice making is achieved through the control assembly, on one hand, the ice making efficiency is improved, and high-concentration saline water generated in each stage is discharged; on the other hand, the growth process of natural sea ice is simulated, an experimental sample which is adjustable in salinity and closer to real sea ice is prepared in a laboratory environment, and the problem that a professional sea ice preparation device is lacked in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of simulation testing technology, and more specifically, to an artificial sea ice making device and method. Background Technology

[0002] In recent years, the trend of global warming has become increasingly significant, with a particularly rapid increase in temperature in the Arctic region, leading to a continuous reduction in the area and thickness of Arctic sea ice. This change has created unprecedented convenience for navigation on Arctic shipping routes and has simultaneously propelled a new wave of resource exploration and development activities in the Arctic region. However, despite the growing strategic and economic value of the Arctic region, systematic research on the mechanical properties of Arctic sea ice remains relatively scarce. Currently, our understanding of key mechanical properties of sea ice under complex environmental loads, such as strength, deformation, and failure mechanisms, is still insufficient. Furthermore, with technological advancements, new icebreaking technologies are constantly emerging, such as icebreaking methods based on thermal energy, sound waves, or special materials. The effectiveness and applicability of these technologies urgently need to be verified and optimized through extensive experimentation. Obtaining natural Arctic sea ice is not only costly but also severely limited by season and location. If conventional freshwater ice machines are used, the pure water ice produced differs fundamentally from real sea ice in composition and structure, failing to meet application requirements. Summary of the Invention

[0003] This invention provides an artificial sea ice making device and method for preparing simulated sea ice to simulate real sea ice.

[0004] The technical solution of the present invention is as follows: In a first aspect, an artificial sea ice making device includes a control component, a refrigeration component, a brine injection component, a freezing tank, and a drainage component. The refrigeration component is used to prepare refrigerant and is connected to the freezing chamber. The control component controls the refrigeration component to deliver refrigerant to the freezing chamber. The brine injection component is connected to the freezing chamber, and the control component controls the brine injection component to inject brine into the freezing chamber. The freezing chamber is used to contain and freeze the brine. The drainage component includes a drain outlet connected to the freezing chamber, and the control component controls the drainage component to discharge brine through the drain outlet during the freezing process to control the salinity of the generated sea ice.

[0005] Preferably, the freezing box includes: a box body and a box cover assembly, the box cover assembly being disposed above the box body, the box cover assembly including a first cover plate and a second cover plate arranged sequentially in a vertical direction; a flow divider layer is provided between the first cover plate and the second cover plate, the flow divider layer being provided with a brine evacuation zone and a refrigerant evacuation zone, the second cover plate being provided with a water injection hole located in the brine evacuation zone and communicating with the box body, and an air injection hole located in the refrigerant evacuation zone and communicating with the box body, the refrigeration component and the brine injection component being both connected to the flow divider layer, the brine injection component injecting brine into the brine evacuation zone, and the refrigeration component simultaneously injecting refrigerant into the refrigerant evacuation zone.

[0006] Preferably, the diversion layer is provided with a partition structure, which divides the diversion layer into a brine evacuation zone and a refrigerant evacuation zone. The brine evacuation zone is located on the inner side of the partition structure, and the refrigerant evacuation zone is located on the outer side of the partition structure.

[0007] Preferably, the second cover plate is square, and the partition structure includes a longitudinal portion and a transverse portion. The center line of the longitudinal portion is arranged along the diagonal of the second cover plate, and the center line of the transverse portion is perpendicular to the center line of the longitudinal portion.

[0008] Preferably, the brine injection assembly includes a precooler for precooling the brine. Its inlet end is provided with an air inlet and a water inlet, and its outlet end is provided with an air outlet and multiple water outlets. The air inlet is connected to the refrigeration assembly, and the water inlet is connected to the brine preparation assembly. Both the air outlet and the water outlet are connected to the distribution layer. Within the precooler, the air inlet is connected to the air outlet, and the water inlet is connected to the water outlet.

[0009] Preferably, the precooler includes: a precooling shell and a spiral tube, the spiral tube being disposed inside the precooling shell, the air inlet being connected to the top of the precooling shell, and the air outlet being connected to the bottom of the precooling shell; the water inlet being connected to the top of the spiral tube, and the water outlet being connected to the bottom of the spiral tube.

[0010] Preferably, the refrigeration component includes a first refrigerant line and a second refrigerant line, the first refrigerant line being connected to the air inlet, and the second refrigerant line being connected to the housing.

[0011] Preferably, the drainage assembly includes a drainage pipe and a drainage valve disposed on the drainage pipe; an observation window is provided on the side wall of the housing, and a temperature sensor is disposed inside the housing; both the temperature sensor and the drainage valve are electrically connected to the control assembly.

[0012] Preferably, it includes: a support assembly disposed below and connected to the freezing box, the support assembly including support legs and crossbeams, the crossbeams being disposed between the support legs, and forklift space being formed between adjacent crossbeams.

[0013] Secondly, an ice-making method, based on any one of the artificial sea ice making apparatuses described above, comprising: S1: Start the refrigeration unit to deliver refrigerant into the freezing chamber and pre-cool the freezing chamber; S2: Control the brine injection component to inject brine into the freezing tank; S3: Control the refrigeration component to deliver refrigerant into the freezing chamber to freeze the brine; S4: After a set time, control the drainage component to discharge high-concentration salt water; S5: Repeat steps S2 and S4 until sea ice of a predetermined thickness is formed; In step S4, the thickness ratio of the frozen sea ice layer to the unfrozen brine layer within the set time period satisfies 3:1 to 5:1.

[0014] The technical solution of this invention has the following beneficial effects: A refrigeration component is connected to a freezing chamber to transfer refrigerant to the freezing chamber, providing a stable and controllable low-temperature environment, thereby ensuring that the brine freezes at a predetermined rate. A brine injection component is connected to the freezing chamber to deliver brine into the freezing chamber. By providing brine of a specified concentration into the freezing chamber, it serves as the initial raw material for sea ice formation. The freezing chamber is used to contain and freeze the brine generated by the brine injection component. As a sealed freezing container, the freezing chamber allows the brine to gradually transform into ice under the action of the refrigerant, thereby achieving sea ice formation. A drainage component includes a drain outlet connected to the freezing chamber, and a control component controls the drainage component to discharge brine through the drain outlet during the freezing process, achieving dynamic control of the salinity of the generated sea ice. More importantly, the control component injects cold air and brine into the freezing chamber in stages through the refrigeration component and the brine injection component, and discharges the brine by controlling the drainage component, thereby achieving layered ice making.

[0015] Compared to existing technologies, the artificial sea ice making device of this invention controls the refrigeration component, brine injection component, and drainage component to work together to form a complete artificial sea ice preparation system. Each component operates sequentially: the refrigeration component initiates the freezing process, the brine injection component supplies brine, the freezing chamber supports the freezing process, and the drainage component discharges high-salinity brine through the drain outlet in the later stages of freezing. Furthermore, the control component enables staged, layered ice making, improving ice-making efficiency by discharging the high-concentration brine generated at each stage. Simulating the natural sea ice growth process, it allows for the preparation of experimental samples with adjustable salinity that more closely resemble real sea ice in a laboratory environment, providing a reliable material basis for related research and technology development. This solves the problem of the lack of professional sea ice preparation devices in existing technologies. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an artificial sea ice making device according to the present invention; Figure 2 for Figure 1 A three-dimensional schematic diagram of the freezing box in the structure shown; Figure 3 for Figure 2 A schematic diagram of the partition structure shown; Figure 4 for Figure 1 and Figure 2 An exploded view of the precooler in the structure shown.

[0017] Explanation of reference numerals in the attached figures: 1. Refrigeration components; 2. Freezing chamber; 3. Drain outlet; 4. Chamber body; 5. First cover plate; 6. Second cover plate; 7. Water inlet; 8. Brine evacuation area; 9. Partition structure; 10. Longitudinal section; 11. Transverse section; 12. Precooler; 13. Air inlet; 14. Water inlet; 15. Air outlet; 16. Water outlet; 17. Precooling shell; 18. Spiral tube; 19. First refrigerant line; 20. Second refrigerant line; 21. Observation window; 22. Support leg; 23. Crossbeam; 24. Water pump; 25. Brine preparation components; 26. Air inlet; 27. Refrigerant evacuation area. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0019] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this invention are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0020] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] Example 1 This embodiment provides an artificial sea ice making device, which is suitable for experimental research that requires simulating the physical properties of natural sea ice, such as polar engineering, ship ice load testing, or icebreaking technology verification.

[0022] like Figures 1-4 As shown, the ice-making device in this embodiment includes: a control component, a refrigeration component 1, a brine injection component, a freezing tank 2, and a drainage component.

[0023] Refrigeration component 1 is used to prepare refrigerant. Refrigeration component 1 is connected to freezing chamber 2 to transfer refrigerant to freezing chamber 2, providing a stable and controllable low-temperature environment for freezing chamber 2, thereby ensuring that brine freezes at a predetermined rate.

[0024] The brine injection assembly is used to inject brine. The brine injection assembly is connected to the freezing tank 2 to deliver brine into the freezing tank 2. By providing brine of a specified concentration into the freezing tank 2, it serves as the initial raw material for sea ice formation.

[0025] Freezing chamber 2 is used to contain and freeze the brine generated by the brine injection assembly. Freezing chamber 2 is connected to refrigeration assembly 1 to receive refrigerant, and simultaneously connected to the brine injection assembly to receive brine. As a sealed freezing container, freezing chamber 2 allows the brine to gradually transform into ice under the action of refrigerant, thereby achieving sea ice formation.

[0026] The drainage assembly includes a drain outlet 3 connected to the freezing tank 2. The control assembly controls the drainage assembly to discharge brine through the drain outlet 3 during the freezing process, thereby achieving dynamic control of the salinity of the generated sea ice. More importantly, the control assembly injects cold air and brine into the freezing tank 2 in stages through the refrigeration assembly 1 and the brine injection assembly, and discharges the brine by controlling the drainage assembly, thus achieving layered ice making.

[0027] In summary, the artificial sea ice making apparatus of this embodiment controls the refrigeration component 1, brine injection component, and drainage component to work together to form a complete artificial sea ice preparation system. Each component operates sequentially: the refrigeration component 1 initiates the freezing process, the brine injection component supplies brine, the freezing tank 2 supports the freezing process, and the drainage component discharges high-salinity brine through the drain outlet 3 in the later stages of freezing. Furthermore, the control component enables staged, layered ice making, which improves ice-making efficiency. Forming a single, thick block of ice is inefficient, and the high-concentration brine that precipitates during the formation process is difficult to drain, hindering the formation of a single block of ice. On the other hand, it simulates the natural sea ice growth process. Natural sea ice is not formed in a single freeze-thaw cycle; it gradually accumulates and stacks to form a thick ice layer. This application, through layered ice making, approximates this process, enabling the preparation of experimental samples with adjustable salinity that more closely resemble real sea ice in a laboratory environment. This provides a reliable material basis for related research and technological development, solving the problem of the lack of professional sea ice preparation equipment in the prior art.

[0028] like Figure 1 and Figure 2 As shown, as a further improvement, the freezing chamber 2 includes a chamber body 4 and a lid assembly. The lid assembly is located above the chamber body 4 and includes a first cover plate 5 and a second cover plate 6 arranged vertically in sequence. A flow distribution layer is provided between the first cover plate 5 and the second cover plate 6, and a brine dispersion zone and a refrigerant dispersion zone 27 are provided within the flow distribution layer. The brine injected by the brine injection component is dispersed through the brine dispersion zone, allowing the brine to enter the chamber body 4 more evenly. Similarly, the refrigerant input by the refrigeration component 1 is dispersed through the refrigerant dispersion zone 27, allowing the refrigerant to enter the chamber body 4 more evenly, avoiding the concentration of brine or refrigerant that could affect the freezing effect of the formed ice layer during the multi-layer ice-making process. Specifically, the second cover plate 6 is provided with a water injection hole 7 located within the brine dispersion zone and communicating with the chamber body 4, and an air injection hole 26 located within the refrigerant dispersion zone 27 and communicating with the chamber body 4. Both the refrigeration component 1 and the brine injection component are connected to the flow distribution layer. In this embodiment, when the sea ice making device is in operation, the brine injection component injects brine into the brine dispersion zone, and at the same time, the refrigeration component 1 injects refrigerant into the refrigerant dispersion zone 27.

[0029] like Figure 2 and Figure 3As shown, a partition structure 9 is provided in the diversion layer, which divides the diversion layer into the brine evacuation zone 8 and the refrigerant evacuation zone 27. The brine evacuation zone 8 is located on the inner side of the partition structure 9, and the refrigerant evacuation zone 27 is located on the outer side of the partition structure 9.

[0030] Specifically, the second cover plate 6 is square, and the opposite first cover plate 5 is also square. Based on this, the partition structure 9 includes a longitudinal section 10 and a transverse section 11. The centerline of the longitudinal section 10 is arranged along the diagonal of the second cover plate 6, thus initially dividing the square distribution layer area along its diagonal direction to form two symmetrical large partitions. The centerline of the transverse section 11 is perpendicular to the centerline of the longitudinal section 10, and the transverse section 11 intersects with the longitudinal section 10, causing the brine evacuation zone 8 and the refrigerant evacuation zone 27 to be staggered, further preventing refrigerant concentration.

[0031] like Figure 4 As shown, as a further improvement, the brine injection assembly includes a precooler 12, which is used to precool the brine before it is injected into the freezing tank 2.

[0032] The precooler 12 is provided with an air inlet 13 and a water inlet 14 at its inlet end. The air inlet 13 is connected to the refrigeration component 1 to provide the required refrigerant for the precooling process. The water inlet 14 is used to connect to the brine preparation component 25, and the brine is input through the water inlet 14 for precooling treatment.

[0033] The refrigerant provided by the refrigeration component 1 is a gas, which can be produced by using existing vapor compression refrigeration equipment. The refrigerant is generated by cooling external air using this vapor compression refrigeration equipment. The precooler 12 has multiple air outlets 15 and one water outlet 16 at its outlet end, both of which are connected to the distribution layer. Furthermore, inside the precooler 12, the multiple air outlets 15 are connected to the air inlet 13 to discharge the refrigerant gas, and the water outlet 16 is connected to the water inlet 14, allowing the pre-cooled brine to be directionally transported to the distribution layer.

[0034] As a further improvement, the precooler 12 includes a precooling shell 17 and a spiral tube 18, wherein the spiral tube 18 is disposed inside the precooling shell 17, and the precooler 12 forms a shell-and-tube heat exchange structure to perform efficient heat exchange between the refrigerant and the brine.

[0035] The air inlet 13 is connected to the top of the precooling shell 17, and the multiple air outlets 15 are connected to the bottom of the precooling shell 17. Low-temperature refrigerant from the refrigeration assembly 1 enters the precooling shell 17 from the top, flows downwards in the space outside the spiral tube 18, and efficiently exchanges heat with the brine flowing inside the spiral tube 18, finally flowing out from the air outlets 15. Simultaneously, the water inlet 14 is connected to the top of the spiral tube 18, and the water outlet 16 is connected to the bottom of the spiral tube 18. The brine to be precooled enters from the top of the spiral tube 18, flows downwards along the spiral tube 18, and finally flows out from the water outlet 16 at the bottom.

[0036] like Figure 1 As shown, specifically, the brine injection assembly also includes a water pump 24, which is connected to the precooler 12. The water pump 24 injects the brine from the brine preparation assembly 25 into the precooler 12.

[0037] like Figure 1 As shown, as a further improvement, the refrigeration assembly 1 includes a first refrigerant line 19 and a second refrigerant line 20.

[0038] The first refrigerant line 19 is connected to the air inlet 13, and this line delivers the refrigerant generated by the refrigeration unit 1 to the pre-cooling shell 17 of the pre-cooler 12. It should be noted that the cooling power and temperature of the cold source in the first refrigerant line 19 can be independently adjusted to ensure that the brine is precisely cooled to the target temperature before entering the freezing chamber 2. Simultaneously, the second refrigerant line 20 is connected to the chamber 4, and this line delivers the refrigerant of reduced quality generated inside the chamber after freezing the brine to the refrigeration unit. The first refrigerant line 19 and the second refrigerant line 20 form a closed-loop refrigerant circulation circuit.

[0039] As a further improvement, the drainage assembly includes a drainage pipe and a drainage valve installed on the drainage pipe. The drainage pipe is connected to the drain outlet 3 of the freezing tank 2, forming a physical channel for draining the high-concentration brine from the tank. By installing the drainage valve, the start, end, and flow rate of the drainage process can be precisely controlled by adjusting the valve's opening and closing, thereby controlling the amount and rate of brine discharged. It should be noted that the drainage valve in this embodiment is implemented using existing technology, and its structure and working principle will not be described in detail here. Furthermore, an observation window 21 is provided on the side wall of the tank 4, providing the operator with a direct visual view of the brine freezing state, ice growth interface, and drainage status inside the tank. A temperature sensor is installed inside the tank 4 to continuously monitor the temperature changes inside the freezing tank 2 in real time. Both the temperature sensor and the drainage valve are electrically connected to the control component. The control component receives real-time signals from the temperature sensor and automatically determines and sends commands to control the drainage valve's operation based on a preset temperature threshold or freezing time model.

[0040] like Figure 1 and Figure 2 As shown, as a further improvement, a support assembly is included, which is disposed below and fixedly connected to the freezing box 2, thereby providing stable support for the entire freezing box 2. Specifically, the support assembly includes support legs 22 and crossbeams 23. Multiple support legs 22 are vertically disposed at the corners of the bottom of the freezing box 2, and the crossbeams 23 are disposed between the support legs 22. Adjacent crossbeams 23 form forklift spaces, providing an insertion channel for the forks of forklifts or handling equipment, facilitating safe transfer.

[0041] Example 2 This embodiment provides an ice-making method based on the artificial sea ice making device described in Embodiment 1, which prepares experimental samples that closely resemble natural sea ice. The ice-making method specifically includes the following steps: S1: Activate the refrigeration component 1 to pre-cool the freezing chamber 2. Specifically, firstly, drive the refrigeration component 1 to allow refrigerant to flow into the freezing chamber 2 through the first refrigerant pipe 19, cooling the internal cavity of the freezing chamber 2 to a stable, predetermined initial temperature below the freezing point of seawater, and maintaining this temperature for a period of time to maintain the thermal balance of the chamber 4. Step S1 creates a low-temperature environment for subsequent brine injection, avoiding freezing delays caused by the initial heat capacity of the chamber 4, and better simulating the natural formation conditions of sea ice in a cold environment.

[0042] S2: Control the brine injection component to inject brine of a preset concentration and volume into the freezing chamber 2. Specifically, start the brine injection component to inject brine, which has been treated to near freezing temperature by the precooler 12, evenly into the freezing chamber 2 through the chamber cover component.

[0043] S3: Control the operation of the refrigeration component 1 to continuously supply refrigerant into the freezing chamber 2, so that the brine in the freezing chamber 2 begins to freeze. In this step, by continuously removing heat, the brine is encouraged to form and grow ice crystals from the contacting cold wall surfaces or the entire supercooled environment, thus initiating the sea ice formation process.

[0044] S4: After a set time or upon reaching a specific freezing state, the drainage component is controlled to discharge the unfrozen, high-concentration brine from the tank. The timing of drainage is determined by the thickness ratio of the frozen sea ice layer to the remaining unfrozen brine layer.

[0045] The drainage operation is preferably performed when the thickness ratio is in the range of 3:1 to 5:1. At the stage where the ice crystal skeleton has fully formed and has a connected pore network, timely drainage of the brine, which has increased in salinity due to ice crystal precipitation, stabilizes the salinity and structure of the current ice layer and creates conditions for subsequent circulation.

[0046] S5: Repeat steps S2 and S4 until the final composite sea ice reaches the predetermined total thickness. The technical effect of this step is that, through multiple cycles of "injection, freezing, and desalination," multi-layered artificial sea ice with clear salinity gradients or specific layered structures can be constructed, thereby accurately simulating the cumulative formation process of natural sea ice under multiple freeze-thaw cycles or different growth stages.

[0047] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. An artificial sea ice making device, characterized in that, It includes a control assembly, a refrigeration assembly (1), a brine injection assembly, a freezer (2), and a drainage assembly; The refrigeration component (1) is used to prepare refrigerant and is connected to the freezing chamber (2). The control component controls the refrigeration component (1) to transfer refrigerant to the freezing chamber (2). The brine injection component is connected to the freezing chamber (2). The control component controls the brine injection component to inject brine into the freezing chamber (2). The freezing chamber (2) is used to contain and freeze the brine. The drainage component includes a drain outlet (3) connected to the freezing chamber (2). The control component controls the drainage component to discharge brine through the drain outlet (3) during the freezing process to control the salinity of the generated sea ice.

2. The artificial sea ice making apparatus according to claim 1, characterized in that, The freezing box (2) includes: a box body (4) and a box cover assembly. The box cover assembly is located above the box body (4). The box cover assembly includes a first cover plate (5) and a second cover plate (6) arranged in sequence along the vertical direction. A diversion layer is provided between the first cover plate (5) and the second cover plate (6). A brine evacuation zone (8) and a refrigerant evacuation zone (27) are provided in the diversion layer. The second cover plate (6) is provided with a water injection hole (7) located in the brine evacuation zone (8) and communicating with the box body (4), and an air injection hole (26) located in the refrigerant evacuation zone (27) and communicating with the box body (4). The refrigeration component (1) and the brine injection component are both connected to the diversion layer. The brine injection component injects brine into the brine evacuation zone (8), and the refrigeration component (1) injects refrigerant into the refrigerant evacuation zone (27).

3. The artificial sea ice making apparatus according to claim 2, characterized in that, The diversion layer is provided with a partition structure (9), which divides the diversion layer into the brine evacuation zone (8) and the refrigerant evacuation zone (27). The brine evacuation zone (8) is located inside the partition structure (9), and the refrigerant evacuation zone (27) is located outside the partition structure (9).

4. The artificial sea ice making apparatus according to claim 3, characterized in that, The second cover plate (6) is square, and the partition structure (9) includes a longitudinal part (10) and a transverse part (11). The center line of the longitudinal part (10) is arranged along the diagonal of the second cover plate (6), and the center line of the transverse part (11) is perpendicular to the center line of the longitudinal part (10).

5. The artificial sea ice making apparatus according to any one of claims 2-4, characterized in that, The brine injection assembly includes a precooler (12) for precooling the brine. Its inlet end is provided with an air inlet (13) and a water inlet (14), and its outlet end is provided with an air outlet (15) and multiple water outlets (16). The air inlet (13) is connected to the refrigeration assembly (1), and the water inlet (14) is connected to the brine preparation assembly (25). The air outlet (15) and the water outlet (16) are both connected to the diversion layer. In the precooler (12), the air inlet (13) is connected to the air outlet (15), and the water inlet (14) is connected to the water outlet (16).

6. The artificial sea ice making apparatus according to claim 5, characterized in that, The precooler (12) includes a precooling shell (17) and a spiral tube (18). The spiral tube (18) is disposed inside the precooling shell (17). The air inlet (13) is connected to the top of the precooling shell (17), and the air outlet (15) is connected to the bottom of the precooling shell (17). The water inlet (14) is connected to the top of the spiral tube (18), and the water outlet (16) is connected to the bottom of the spiral tube (18).

7. The artificial sea ice making apparatus according to claim 5, characterized in that, The refrigeration component (1) includes a first refrigerant pipe (19) and a second refrigerant pipe (20). The first refrigerant pipe (19) is connected to the air inlet (13), and the second refrigerant pipe (20) is connected to the housing (4).

8. The artificial sea ice making apparatus according to any one of claims 2-4, characterized in that, The drainage assembly includes a drainage pipe and a drainage valve installed on the drainage pipe; the side wall of the housing (4) is provided with an observation window (21), and a temperature sensor is installed inside the housing (4). The temperature sensor and the drainage valve are both electrically connected to the control assembly.

9. The artificial sea ice making apparatus according to any one of claims 2-4, characterized in that, Includes: a support assembly, which is disposed below and connected to the freezing box (2), the support assembly including support legs (22) and crossbeams (23), the crossbeams (23) being disposed between the support legs (22), and forklift space being formed between adjacent crossbeams (23).

10. A method for making ice, characterized in that, The artificial sea ice making apparatus according to any one of claims 1-9 comprises: S1: Start the refrigeration component (1) to deliver refrigerant into the freezing box (2) to pre-cool the freezing box (2); S2: Control the brine injection component to inject brine into the freezing box (2); S3: Control the refrigeration component (1) to deliver refrigerant into the freezing chamber (2) to freeze the brine; S4: After a set time, control the drainage component to discharge high-concentration salt water; S5: Repeat steps S2 and S4 until sea ice of a predetermined thickness is formed; In step S4, the thickness ratio of the frozen sea ice layer to the unfrozen brine layer within the set time period satisfies 3:1 to 5:1.

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