A household appliance type desalination direct drinking machine for remote islands

Abstract

The application provides a household appliance type fresh water machine suitable for remote islands, belonging to the technical field of sea water desalination, comprising a main machine and an external air cooling radiator, the main machine 1 is provided with an evaporation condensation system, a water quality mineralization system and an intelligent control system. The evaporation condensation system changes the water in sea water into gaseous state and then condenses and collects, so as to achieve the effect of salt removal; the water quality mineralization system mineralizes the output distilled water into mineralized water, supplementing the mineral substances beneficial to human body which are lacked in distilled water; the intelligent control system enables the user to conveniently control the opening and closing of the device, and realizes the functions of water full self-stopping and the like, providing guarantee for the safe operation of the device. Through the processes of evaporation condensation, collection and mineralization and direct drinking supply, the sea water is desalted and treated, and mineralized direct drinking water is output for the user to use; the operation is simple, and the device is suitable for ordinary household users to use; the structure is compact, and the device is convenient to move and place in a household environment; the degree of intelligence is high, and the device can realize remote control and automatic operation and the like.

Description

Technical Field

[0001] This invention belongs to the field of seawater desalination technology and relates to a household appliance-type desalination direct drinking water machine for remote islands. Background Technology

[0002] Drinking water shortage has always been a major factor limiting the development of island regions. Due to the influence of topography, islands have limited usable runoff and insufficient groundwater reserves. Currently, drinking water for islands is mainly obtained through the following methods: conventional water sources, mainland water supply, and unconventional water sources. Conventional water sources include surface water and groundwater on the islands; mainland water supply is mainly suitable for islands located close to the mainland; unconventional water sources include desalinated seawater, etc.

[0003] In island regions, access to drinking water is limited by the scarcity of conventional water sources and the inconvenience of mainland water supply, making seawater desalination a preferred solution for island drinking water supply. Seawater desalination refers to the process of separating dissolved mineral salts, organic matter, bacteria and viruses, and solids from seawater to obtain fresh water. Based on the different brine separation processes, seawater desalination technologies can be divided into two main categories: physical methods and chemical methods. Physical methods that use heat energy as a power source and involve phase change during brine separation are classified as thermal methods, mainly including multi-stage flash distillation, multi-effect distillation, and vapor compression distillation. Methods that use membranes (semi-permeable membranes or ion exchange membranes, etc.) for brine separation without phase change are classified as membrane methods, mainly including reverse osmosis and electrodialysis. In addition, physical methods also include solvent extraction. Chemical methods mainly include hydrate methods and ion exchange methods. While multi-effect distillation, multi-stage flash distillation, and vapor compression distillation technologies have advantages such as low scaling tendency and high-quality fresh water, their equipment is often quite large and unsuitable for household seawater desalination systems. Another widely used seawater desalination technology, reverse osmosis, while boasting advantages such as low energy consumption and simple structure, produces unstable water quality, requiring strict pretreatment of seawater and regular cleaning and replacement of the semi-permeable membrane. Single-effect distillation, as the foundation of thermal seawater desalination technology, can greatly simplify device design, resulting in simpler, more compact, and more efficient seawater desalination devices, making them more suitable for remote island households. Deng Shangxun et al. designed a device combining an absorption heat pump and a flash chamber to improve energy utilization (Deng Shangxun, Liu Xingyuan, Liu Bing, et al. A Seawater Desalination Device [P]. Hebei Province: CN202120789843.X, 2021-12-24). However, currently, there are no small-scale household seawater desalination devices suitable for remote island households to be promoted in island areas. This is because seawater desalination technology applications are mostly geared towards large-scale equipment and desalination plants; research on small-scale household seawater desalination devices remains largely in the laboratory stage, and no mature industrial products have yet emerged. The miniaturization of seawater desalination equipment has encountered many challenges. For home use, it must be mature, reliable, stable, easy to operate, and compact in size. These aspects still need to be studied and resolved in depth.

[0004] The desalinated water produced by thermal seawater desalination technology has a low TDS (Total Dissolved Solids) value, generally below 10 mg / L. This distilled water lacks the minerals needed by the human body and is not suitable for long-term drinking. For the sake of drinking water health, the desalinated water produced often needs to undergo mineralization treatment. Wang Lin et al. designed a mineralization system for desalinated seawater with high gas-water mixing efficiency and automatic uniform feeding (Wang Lin, Zhang Chengyi, Mou Chunxia. A Feedable Mineralization System for Desalinated Seawater [P]. Shandong Province: CN202110603843.0, 2022-12-06). Although its mineralization tower has the advantages of automatic feeding and uniform mixing, the overall system is complex and large, and cannot be applied to small-scale household seawater desalination devices.

[0005] With the continuous evolution of technology, modern household appliances should possess highly intelligent features to reduce the complexity of operation for users. The automatic alarm system for seawater desalination devices designed by Ni Weiguo et al. has the ability to monitor the desalination process in real time, evaluate the desalination effect, and trigger alarm mechanisms and emergency backup procedures when necessary to ensure that the discharged freshwater meets the predetermined salinity and transparency standards (Ni Weiguo, Peng Peng. Automatic Alarm System for Seawater Desalination Devices [P]. Jiangsu Province: CN202310965432.5, 2023-10-31). While this system achieves monitoring and regulation of the seawater desalination process, in practical applications, it lacks core functions such as effluent collection monitoring and automatic shut-off when the water level is full, and its design is not suitable for household appliance-type seawater desalination equipment. Summary of the Invention

[0006] To address the aforementioned problems, this invention designs a household-style seawater desalination and direct drinking water machine for use on remote islands. The mineralized drinking water produced is suitable for daily drinking by households. This device is applicable to remote island areas or island areas with abundant solar and wind energy resources. Through the evaporation and condensation system in this invention, rapid water production can be achieved. Furthermore, the water mineralization system and intelligent control system ensure the mineralization of the produced water, facilitating convenient control of the device's operation and the dispensing of drinking water, thus providing users with a better user experience.

[0007] The technical solution of the present invention is as follows: A household appliance-style desalination and direct drinking water machine for remote islands includes a main unit 1 and an external air-cooled radiator 8. The main unit 1 is equipped with an evaporation and condensation system, a water mineralization system and an intelligent control system.

[0008] The main unit 1 is divided into two detachable parts, including the main unit shell 2 and the movable seawater tank 3. The main unit shell 2 is fixed to the upper surface of the movable seawater tank 3.

[0009] The evaporation and condensation system includes a heat dissipation fan 6, an electric water distiller 7, an air-cooled radiator 8, a condensate tank 9, a condensate circulation pump 10, and a seawater circulation pump 11. The electric water distiller 7 and the heat dissipation fan 6 are installed inside the main unit casing 2, and the heat dissipation fan 6 dissipates heat from inside the main unit casing 2. The condensate tank 9 is embedded in the side of the movable seawater tank 3. The seawater circulation pump 11 pumps seawater from the movable seawater tank 3 into the overflow device 12 of the electric water distiller 7. The condensate circulation pump 10 pumps condensate from the condensate tank 9 into the condensation chamber interlayer 19 of the electric water distiller 7. The air-cooled radiator 8 dissipates heat from the high-temperature condensate that has completed heat exchange flowing out of the condensation chamber interlayer 19 of the distiller through pipelines.

[0010] The electric water distillation device 7 has a condensation chamber at the top, with a condensation chamber interlayer 19 on the outer layer of the condensation chamber and a distilled water outlet 18 on the bottom side of the condensation chamber. The lower part is an evaporation chamber, which is equipped with an electric heating tube 20 and a temperature sensor 21. The temperature sensor 21 is close to the top of the electric heating tube 20 to monitor the temperature in the evaporation chamber. The evaporation chamber is equipped with an overflow device 12. Seawater is pumped from the movable seawater tank 3 by the seawater circulation pump 11 into the overflow device 12 to replenish the seawater in the evaporation chamber to maintain a stable water level. Excess seawater flows back to the movable seawater tank 3 through the overflow pipe 13.

[0011] The water mineralization system includes a freshwater tank 16, a freshwater supply pump 14, a mineralization filter element 17, and a direct drinking water faucet 5. The direct drinking water faucet 5 is installed on the side of the main unit housing 2. The freshwater tank 16, the freshwater supply pump 14, and the mineralization filter element 17 are installed inside the main unit housing 2. The freshwater tank 16 is fixed to the bottom inside the main unit housing 2. The distilled water produced by the electric heating water distiller 7 is collected and flows into the freshwater tank 16 from the distilled water outlet 18. The freshwater supply pump 14 draws distilled water from the freshwater tank 16 and pumps it through the mineralization filter element 17, thereby realizing the mineralization process of distilled water, which finally flows out from the direct drinking water faucet 5 for users to drink.

[0012] The intelligent control system is located inside the main unit casing 2 and includes an intelligent control switch 4 installed on the side of the main unit casing 2, a distiller switch 31, an intermediate relay 30, an adjustable voltage power supply 29, and an AC contactor 32 installed inside the main unit casing 2, and a float level switch 15 installed in the freshwater tank 16. This system enables intelligent control of the seawater circulation pump 11, the condensate circulation pump 10, the freshwater supply pump 14, and the electric water distiller 7. The intelligent control switch 4 is connected to the seawater circulation pump 11, the condensate circulation pump 10, the freshwater supply pump 14, and the electric water distiller 7, controlling the start and stop of the seawater desalination device. Its three switches can independently control the power supply to the electric water distiller 7, the power supply to the condensate circulation pump 10 and the seawater circulation pump 11, and the power supply to the freshwater supply pump 14, respectively. The adjustable voltage power supply 29 is connected to the condensate circulation pump 10, the seawater circulation pump 11, and the freshwater supply pump 14. After voltage conversion by the adjustable voltage power supply 29, the system supplies power to the condensate circulation pump 10, the seawater circulation pump 11, and the freshwater supply pump 14. The freshwater supply pump 14 is powered, and the output power of the condensate circulation pump 10, seawater circulation pump 11, and freshwater supply pump 14 can be adjusted by regulating the output voltage of the adjustable power supply 29. The float level switch 15 is connected to the intermediate relay 30, which controls the AC contactor coil 33 to be energized, causing the moving contact of the AC contactor 32 to close with the stationary contact under the action of electromagnetic force, thereby connecting the power supply circuit of the electric water distiller 7 and enabling the electric water distiller 7 to operate, thus achieving... Safety control of the electric water distiller 7: When the water level in the freshwater tank 16 reaches the preset height, the float of the float level switch 15 rises due to the rising water level, causing its internal switch to open, triggering the AC contactor coil 33 to cut off the power, thereby cutting off the power supply to the distiller switch 31; The distiller switch 31 is connected to the electric heating tube 20 and temperature sensor 21 in the electric water distiller 7. When the electric water distiller 7 is dry-burning due to lack of water, the temperature sensor 21 cuts off the distiller switch 31 to avoid the risk of continuous dry burning.

[0013] The air-cooled radiator 8 has a plate heat exchanger 22 inside and a cooling fan 23. It is equipped with a shock-absorbing base 24 at the bottom to reduce vibration and noise during operation.

[0014] The side wall of the condensate tank 9 is equipped with a transparent level gauge 28, which allows observation of the liquid level inside the condensate tank 9 for replenishment of condensate. The top cover of the condensate tank 9 is provided with a condensate tank inlet 26 and a condensate tank outlet 27. The condensate is introduced into the condensate tank 9 from the air-cooled radiator 8 through the condensate tank inlet 26, and then drawn into the condensate tank jacket 19 of the distiller through the condensate tank outlet 27 to complete the heat exchange cycle. The condensate tank 9 is also provided with a replenishment port 25 for convenient replenishment of condensate.

[0015] The main unit housing 2 and the movable seawater tank 3 are fixedly connected by bolts and hex nuts. The detachable structure makes it easier to disassemble, maintain and transport them later.

[0016] The portable seawater tank 3 is equipped with movable wheels, making the entire unit easy to move. The wheels can also be locked to stop rotation when needed. The portable seawater tank 3 is made of stainless steel. Insulation boards are embedded to fill any gaps around the portable seawater tank 3, reducing heat loss. The portable seawater tank 3 has a detachable lid, making it easier to add water. The added seawater should undergo a pretreatment process of mechanical filtration, precipitant sedimentation, and activated carbon filtration to prevent violent boiling during seawater distillation and ensure the quality of the produced water is not compromised.

[0017] The effects and benefits of this invention are: (1) This device is suitable for use by families living on remote islands or island areas with abundant solar and wind energy resources. Under the constraints of small size and weight, it can generate a large amount of drinking water, which is sufficient to meet the daily water needs of the whole family and effectively solve the problem of drinking water shortage in remote island areas.

[0018] (2) It is equipped with an intelligent control system that supports remote control via an application. Users can configure intelligent scenes to achieve functions such as one-click start and timed start / stop. In addition, the system has built-in multiple safety protection mechanisms such as water shortage power failure protection and automatic shutdown when the water is full, which significantly improves the user's safety.

[0019] (3) A mineralizing filter cartridge is used to mineralize the produced distilled water. The adapter connection method allows for easy replacement of the mineralizing filter cartridge, making it convenient for users. This mineralization method avoids the problem of uncertain dosage of mineralizing agents. From the distilled water outlet of the distiller to the drinking water faucet, the entire process of mineralizing and drinking the distilled water is sealed and has no contact with the outside world, thus avoiding water pollution.

[0020] (4) Using an external air-cooled radiator as an additional condensation measure greatly improves the condensation effect and seawater utilization rate. Through the improvement of the device's condensation method, the desalination water intake device can operate stably for 24 hours continuously and ultimately achieve a high seawater-to-freshwater conversion rate.

[0021] (5) For specific types of seawater desalination equipment, the seawater pretreatment process was designed and optimized. By adopting the simplest and most economical treatment methods, the occurrence of boiling over during the seawater heating process was avoided, thereby preventing the negative impact of sudden boiling and overflow of seawater on the quality of the produced water.

[0022] (6) The modular design of the housing significantly improves the portability and maintenance efficiency of the desalination device, facilitating disassembly and reassembly during transportation. In addition, its ingenious structural layout ensures that the device size conforms to household appliance standards, making it suitable for use in home environments.

[0023] (7) The internal circuits and power wiring of the seawater desalination device are sealed with a waterproof power box, and heat dissipation fans are installed on both sides of the outer shell to avoid the danger of short circuits and leakage caused by moisture inside the device.

[0024] (8) Install a detachable shock-absorbing base at the bottom of the external air-cooled radiator to reduce vibration of the radiator and thus reduce some noise. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a household appliance-style desalination direct drinking water machine; Figure 2 This is an elevation view of a household appliance-style desalination direct drinking water machine; Figure 3 This is a schematic diagram of the evaporation and condensation structure of a household appliance-type desalination direct drinking water machine; Figure 4 This is a structural diagram of the condensate water tank of a household appliance-type desalination direct drinking water machine; Figure 5 This is the circuit control diagram for a household appliance-type desalination direct drinking water machine.

[0026] In the diagram: 1. Main unit; 2. Main unit casing; 3. Movable seawater tank; 4. Intelligent control switch; 5. Direct drinking water faucet; 6. Heat dissipation fan; 7. Electric water distiller; 8. Air-cooled radiator; 9. Condensate tank; 10. Condensate circulation pump; 11. Seawater circulation pump; 12. Overflow device; 13. Overflow pipe; 14. Freshwater supply pump; 15. Float level switch; 16. Freshwater tank; 17. Mineralization filter element; 18. Distilled water outlet; 19. Condensation chamber jacket; 20. Electric heating element; 21. Temperature sensor; 22. Plate heat exchanger; 23. Heat dissipation fan; 24. Shock-absorbing base; 25. Condensate replenishment port; 26. Condensate tank inlet; 27. Condensate tank outlet; 28. Transparent level gauge; 29. ​​12V power adapter; 30. Intermediate relay; 31. Distiller switch; 32. AC contactor; 33. AC contactor coil. Detailed Implementation

[0027] The specific embodiments of the present invention are described in detail below with reference to the technical solutions and accompanying drawings.

[0028] The present invention provides a household appliance-type desalination direct drinking water machine for remote islands, such as... Figure 1 and Figure 2 As shown, the main body includes a host 1 and an external air-cooled radiator 8. The host 1 is equipped with an evaporation and condensation system, a water mineralization system and an intelligent control system.

[0029] The desalination unit 1 includes a main unit housing 2 and a movable seawater tank 3. The main unit 1 is divided into two detachable parts: the upper main unit housing 2 serves as the upper outer shell, protecting the internal structure and accommodating component installation; the lower part, the movable seawater tank 3, serves as the lower outer shell, holding seawater and supporting the upper outer shell and components. The movable seawater tank 3 is made of stainless steel to prevent seawater corrosion from affecting its lifespan; a load-bearing frame is constructed using 30mm square tubing welded together to enhance the load-bearing capacity of the movable seawater tank.

[0030] The evaporation and condensation system includes a heat dissipation fan 6, an electric water distiller 7, an air-cooled radiator 8, a condensate tank 9, a condensate circulation pump 10, and a seawater circulation pump 11. The electric water distiller 7 is divided into upper and lower sections. The upper section is a condensation chamber with an outer condensation chamber jacket 19 and a distilled water outlet 18 on the bottom side. The lower section is an evaporation chamber containing a 2.5kW electric heating element 20 and a temperature sensor 21 located at its top to monitor the temperature and prevent dry burning due to water shortage. The evaporation chamber has an overflow device 12. Seawater from the movable seawater tank 3 is pumped into the overflow device by the seawater circulation pump 11 to replenish the seawater in the evaporation chamber and maintain a stable water level. Excess seawater can flow back to the movable seawater tank 3 through the overflow pipe 13. The condensate tank 9 is embedded in the side of the movable seawater tank 3 to fully utilize the side space. Heat dissipation fans 6 are installed on both sides inside the main unit casing 2 to dissipate heat within the desalination device.

[0031] The external air-cooled radiator 8 contains a plate heat exchanger 22 and is equipped with two cooling fans 23. A shock-absorbing base 24 is installed at its bottom to reduce vibration and noise during operation. To ensure a stable condensate level and smooth condensate circulation within the radiator, a condensate tank 9 and a condensate circulation pump 10 are provided. All inlets and outlets are equipped with suitable connectors, connected with food-grade transparent silicone tubing or PU rigid tubing, and further protected by stainless steel threaded tubing.

[0032] The water mineralization system includes a freshwater tank 16, a freshwater supply pump 14, a mineralization filter element 17, and a direct drinking water faucet 5. The freshwater tank 16 is fixed to the bottom of the main unit casing 2 by four triangular brackets, restricting its lateral movement while allowing it to be easily removed from its fixed position for internal cleaning. The freshwater supply pump 14 draws distilled water from the freshwater tank 16 and pumps it through the mineralization filter element 17, thus achieving the mineralization process of the distilled water, which finally flows out from the direct drinking water faucet 5 for the user to drink.

[0033] The intelligent control system includes an intelligent control switch 4, a distiller switch 31, an intermediate relay 30, a float level switch 15, a 220V to 12V adjustable power supply 29, and an AC contactor 32. This enables intelligent control of electrical appliances such as the seawater circulation pump 11, the condensate circulation pump 10, the freshwater supply pump 14, and the electric water distiller 7. The intelligent control switch 4 is installed on the side of the main unit casing 2. It controls the opening and closing of the seawater desalination device. Its three switches can independently control the power supply to the electric water distiller 7, the condensate circulation pump 10 and the seawater circulation pump 11, and the freshwater supply pump 14. The adjustable power supply 29 converts the voltage to power the condensate circulation pump 10, the seawater circulation pump 11, and the freshwater supply pump 14. The output power of these pumps can be adjusted by regulating the output voltage of the adjustable power supply 29. The float level switch 15 is connected to the intermediate relay 30, which in turn energizes the AC contactor coil 33. This causes the moving contact of the AC contactor 32 to close with the stationary contact under electromagnetic force, thereby connecting the power supply circuit of the electric water distiller 7 and enabling the electric water distiller 7 to operate safely. When the water level in the freshwater tank 16 reaches the preset height, the float of the float level switch 15 rises due to the rising water level, causing its internal switch to open and triggering the AC contactor coil 33 to de-energize, thus cutting off the power supply to the distiller switch 31. The distiller switch 31 is connected to the electric heating tube 20 and the temperature sensor 21 in the electric water distiller 7. When the electric water distiller 7 is dry-burning due to lack of water, the temperature sensor 21 cuts off the distiller switch 31 to avoid the risk of continuous dry burning.

[0034] like Figure 4 As shown, a transparent level gauge 28 is installed on the side wall of the condensate tank 9, through which the liquid level inside the condensate tank 9 can be observed so as to replenish the condensate. The top cover of the condensate tank 9 is provided with a condensate tank inlet 26 and a condensate tank outlet 27. The condensate is introduced into the condensate tank 9 from the air-cooled radiator 8 through the condensate tank inlet 26, and then drawn into the condensate tank jacket 19 of the distiller condenser through the condensate tank outlet 27 to complete the heat exchange cycle. The condensate tank 9 is also provided with a replenishment port 25, which can be conveniently replenished with condensate.

[0035] like Figure 3 As shown, the structural principle of the evaporation and condensation system of the seawater desalination plant is as follows: Seawater circulation: Seawater in the movable seawater tank 3 is pumped by the seawater circulation pump 11 into the overflow device 12, and then flows into the lower evaporation chamber of the electric water distiller 7. When the water level in the evaporation chamber reaches the preset level, excess seawater overflows from the overflow device 12 and the overflow pipe 13, flowing back into the movable seawater tank 3. Through the coordinated operation of the seawater circulation pump 11 and the overflow device 12, seawater is circulated, continuously replenishing the evaporation chamber, thereby maintaining a stable water level in the electric water distiller 7 and preventing dry burning due to water shortage.

[0036] Refrigerant Circulation: Condensate is used as the refrigerant and is stored in the condensate tank 9. The condensate tank 9 serves as a transfer buffer chamber, allowing the condensate to circulate safely between the condenser chamber jacket 19 and the air-cooled radiator 8. The condensate circulation pump 10 draws condensate from the condensate tank 9 and pumps it into the condenser chamber jacket 19. After sufficient heat exchange with the interior of the condenser chamber, the condensate flows out and returns to the air-cooled radiator 8. It then passes through the plate heat exchanger 22 and the cooling fan 23, where the condensate, which has absorbed heat and increased in temperature, is cooled down before flowing back into the condensate tank 9 for subsequent condensation and heat exchange.

[0037] Seawater desalination direct drinking water machine control system, such as Figure 5 As shown, the operation of the device is divided into the following two stages: Evaporation and condensation water production stage: Pretreated seawater is pumped from the movable seawater tank 3 by the seawater circulation pump 11 into the evaporation chamber of the electric heating distillation water apparatus 7. The electric heating tube 20 heats the seawater, causing the water to turn into a gaseous state and rise. After reaching the condensation chamber, it exchanges heat with the condensate in the condensation chamber jacket 19 and condenses to form distilled water that flows down the inner wall. After collection, it flows into the freshwater tank 16 from the distilled water outlet 18. The seawater circulation and refrigerant circulation allow this process to be repeated continuously and stably, thus continuously producing distilled water.

[0038] Mineralized direct drinking water supply stage: When a user wants to use water, they can manually or remotely activate the switch controlling the fresh water supply pump 14 in the smart switch. The pump starts working, drawing distilled water from the fresh water tank 16 and passing it through the mineralization filter element 17 to complete the mineralization process, turning the distilled water into mineralized direct drinking water, which finally flows out from the direct drinking water faucet 5 for the user's use.

Claims

1. A household appliance-type desalination and direct drinking water machine for remote islands, characterized in that, The household appliance-type desalination direct drinking machine for remote islands includes a main unit (1) and an external air-cooled radiator (8). The main unit (1) is equipped with an evaporation and condensation system, a water mineralization system and an intelligent control system. The main unit (1) is divided into two detachable parts, including the main unit shell (2) and the movable seawater tank (3), with the main unit shell (2) fixed to the upper surface of the movable seawater tank (3); The evaporation and condensation system includes a heat dissipation fan (6), an electric water distiller (7), an air-cooled radiator (8), a condensate tank (9), a condensate circulation pump (10), and a seawater circulation pump (11). The electric water distiller (7) and the heat dissipation fan (6) are installed inside the main unit casing (2), and the heat dissipation fan (6) dissipates heat from inside the main unit casing (2). The condensate tank (9) is embedded in the side of the movable seawater tank (3). The seawater circulation pump (11) pumps seawater from the movable seawater tank (3) into the electric water tank. The overflow device (12) of the hot water distiller (7) replenishes seawater in the evaporation chamber to maintain a stable water level, and excess seawater flows back to the movable seawater tank (3) through the overflow pipe (13); the condensate circulation pump (10) pumps the condensate in the condensate tank (9) into the condensation chamber jacket (19) of the electric water distiller (7); the air-cooled radiator (8) has a plate heat exchanger (22) inside and is equipped with a cooling fan (23); the air-cooled radiator (8) dissipates heat from the high-temperature condensate that has completed heat exchange flowing out of the condensation chamber jacket (19) of the distiller through the pipeline; The water mineralization system includes a freshwater tank (16), a freshwater supply pump (14), a mineralization filter (17), and a drinking water faucet (5). The drinking water faucet (5) is installed on the side of the main unit housing (2). The freshwater tank (16), the freshwater supply pump (14), and the mineralization filter (17) are installed inside the main unit housing (2). The freshwater tank (16) is fixed at the bottom inside the main unit housing (2). The distilled water generated by the electric heating water distiller (7) is collected and flows into the freshwater tank (16) from the distilled water outlet (18). The freshwater supply pump (14) draws distilled water from the freshwater tank (16) and pumps it through the mineralization filter (17) to realize the mineralization process of distilled water, which finally flows out from the drinking water faucet (5) for users to drink. The intelligent control system is located inside the main unit housing (2) and includes an intelligent control switch (4) installed on the side of the main unit housing (2), a distiller switch (31), an intermediate relay (30), an adjustable voltage power supply (29), and an AC contactor (32) installed inside the main unit housing (2), and a float level switch (15) installed in the freshwater tank (16) to realize intelligent control of the seawater circulation pump (11), the condensate circulation pump (10), the freshwater supply pump (14), and the electric heating water distiller (7); the intelligent control switch (4) and the seawater circulation pump (11) are connected to the distiller (7). 1) The condensate circulation pump (10), the freshwater supply pump (14), and the electric water distiller (7) are connected to control the opening and closing of the seawater desalination device. The three switches independently control the power supply of the electric water distiller (7), the power supply of the condensate circulation pump (10) and the seawater circulation pump (11), and the power supply of the freshwater supply pump (14); the adjustable voltage power supply (29) is connected to the condensate circulation pump (10), the seawater circulation pump (11), and the freshwater supply pump (14). After voltage conversion through the adjustable voltage power supply (29), the condensate circulation pump (10), the seawater circulation pump (11), and the freshwater supply pump (14) are powered. The freshwater supply pump (14) is powered by the condensate circulation pump (10), the seawater circulation pump (11), and the freshwater supply pump (14) are adjusted by regulating the output voltage of the adjustable power supply (29); the float level switch (15) is connected to the intermediate relay (30), and the intermediate relay (30) controls the AC contactor coil (33) to be energized, so that the moving contact of the AC contactor (32) closes with the stationary contact under the action of electromagnetic force, thereby connecting the power supply circuit of the electric heating water distiller (7), so that the electric heating water distiller (7) is powered and works, thereby achieving Safety control of the paired electric water distiller (7): When the water level in the fresh water tank (16) reaches the preset height, the float of the float level switch (15) rises due to the rising water level, causing its internal switch to open, triggering the AC contactor coil (33) to cut off the power supply to the distiller switch (31); The distiller switch (31) is connected to the electric heating tube (20) and temperature sensor (21) in the electric water distiller (7). When the electric water distiller (7) is dry-burning due to lack of water, the temperature sensor (21) cuts off the distiller switch (31) to avoid the risk of continuous dry burning.

2. A household appliance-type desalination and direct drinking water machine for remote islands according to claim 1, characterized in that, The electric water distiller (7) has a condensing chamber at the top, a condensing chamber jacket (19) on the outer layer of the condensing chamber, a distilled water outlet (18) on the bottom side of the condensing chamber, and an evaporation chamber at the bottom. The evaporation chamber is equipped with an electric heating tube (20) and a temperature sensor (21). The temperature sensor (21) is close to the top of the electric heating tube (20) to monitor the temperature inside the evaporation chamber. The evaporation chamber is equipped with an overflow device (12).

3. A household appliance-type desalination and direct drinking water machine for remote islands according to claim 1, characterized in that, The air-cooled radiator (8) is equipped with a shock-absorbing base (24) at its bottom.

4. A household appliance-type desalination and direct drinking water machine for remote islands according to claim 1, characterized in that, The side wall of the condensate tank (9) is equipped with a transparent level gauge (28), through which the liquid level inside the condensate tank (9) can be observed so as to replenish the condensate; the top cover of the condensate tank (9) is provided with a condensate tank inlet (26) and a condensate tank outlet (27). The condensate is introduced into the condensate tank (9) from the air-cooled radiator (8) through the condensate tank inlet (26), and then drawn into the jacket (19) of the condenser condensing chamber through the condensate tank outlet (27) to complete the heat exchange cycle; the condensate tank (9) is also provided with a replenishment port (25).

5. A household appliance-type desalination and direct drinking water machine for remote islands according to claim 1, characterized in that, The main unit housing (2) and the movable seawater tank (3) are fixedly connected by bolts and hexagonal nuts, forming a detachable structure.

6. A household appliance-type desalination and direct drinking water machine for remote islands according to claim 1, characterized in that, The movable seawater tank (3) is equipped with movable wheels, is made of stainless steel, and has a split lid.

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