A storage room system and method suitable for island material storage and seawater desalination

Abstract

The application relates to a storage room system and method suitable for island material storage and seawater desalination, and belongs to the island life health field. In view of the problems of food perishability and freshwater shortage on islands, the application provides a storage room system suitable for island material storage and seawater desalination, which mainly comprises a refrigeration system, a plasma system and a seawater desalination system. The application realizes refrigeration and cooling of the storage space and provides a relatively suitable working temperature for the coupled plasma generating device by extracting low-temperature seawater to cool the refrigerant and arranging the evaporation pipeline around the storage room. Fresh water is prepared by utilizing the high humidity of island air, the air is heated through the convection effect of the compressor, the filtered air is humidified to the saturated state through the spraying device, and the fresh water is prepared through condensation. The application fully adapts to local conditions, utilizes the climate advantages and unique renewable energy of the South China Sea islands, and practically solves the actual needs of life.

Description

Technical Field

[0001] This invention relates to a storage system and method suitable for island material storage and seawater desalination, belonging to the field of island life and health. Background Technology

[0002] The islands in the South my country Sea experience high temperatures and abundant rainfall year-round. This humid environment exacerbates bacterial growth, causing food to spoil easily and be difficult to store, threatening the health and safety of island residents. Furthermore, because these islands are far from the mainland and surrounded by seawater, freshwater is crucial and scarce for daily life. Most islands rely on boats from the mainland for regular freshwater replenishment, which is extremely inconvenient.

[0003] Currently, there are still many shortcomings in solutions for material storage and seawater desalination on islands. For example, CN202310874687.0 describes a hybrid evaporation-condensation seawater desalination device, which first evaporates seawater at high temperatures and then obtains fresh water through condensation. However, this method requires high-temperature heating followed by low-temperature condensation, which not only consumes a lot of energy but also involves cumbersome procedures and is time-consuming. Another example is CN202210353604.9, which describes a marine thermal energy refrigeration system and method. This system uses a compression-assisted multi-stage evaporation-absorption refrigeration cycle to meet the needs of refrigerated food on islands. However, its process is complex, requires a lot of electrical equipment, and can only achieve simple refrigeration functions, lacking functions such as sterilization to further ensure the health of stored goods.

[0004] To address the above issues, this invention designs a storage system suitable for island material storage and seawater desalination. Low-temperature seawater is drawn to cool the refrigerant. Evaporation pipes arranged around the storage room achieve cooling of the storage space and provide a suitable operating temperature for the coupled plasma generator, enabling it to better achieve sterilization and deodorization. Furthermore, the high humidity of the island air is utilized to produce fresh water. Air is passed through a compressor, where convection heats the air and cools the compressor. The filtered air is then humidified to saturation through a spray device, and finally condensed to produce fresh water. Summary of the Invention

[0005] This invention provides a storage room system suitable for island material storage and seawater desalination, the system consisting of three modules: a refrigeration system, a plasma system, and a seawater desalination system;

[0006] The seawater desalination system consists of a blower 1, a duct 2, a compressor 3, an activated carbon layer 4, a handle 5, high-pressure water mist nozzles 6, an evaporator coil 9, a seawater desalination tank 14, a heat exchange baffle 15, a baffle 16, an exhaust vent 17, and a freshwater outlet 18. The duct 2 is connected after the blower 1. Inside the duct 2 are the compressor 3 and four high-pressure water mist nozzles 6 arranged in pairs on both sides of the duct. A handle 5 is installed on the duct 2 below the high-pressure water mist nozzles 6. The other end of the duct 2 is connected to… Next, there is a seawater desalination tank 14. In the middle of the seawater desalination tank 14, there is a heat exchange baffle 15 that is closed on all four sides. An evaporation coil 9 of the desalination equipment is installed in the heat exchange baffle 15 and connected in parallel with the evaporation coil 8 of the storage room. Below the heat exchange baffle 15, there is a baffle 16 that is inclined towards the fresh water outlet 18. The baffle 16 is tightly connected to the four walls of the seawater desalination tank 14. The fresh water outlet 18 is connected at the lowest angle of the baffle 16. An exhaust hole 17 is set at a certain distance directly above the baffle 16.

[0007] The refrigeration system consists of a compressor 3, a storage chamber evaporator coil 8, a desalination equipment evaporator coil 9, a thermal expansion valve 10, a condenser 11, a water outlet 12, a water inlet 13, a temperature sensor 19, a storage chamber 20, a condenser inlet pipe 21, a condenser outlet pipe 22, an evaporation main pipe 23, a compressor return pipe 24, and a capillary tube 25. One end of the condenser inlet pipe 21 is connected to the compressor 3, and the other end is connected to the upper part of the condenser 11. The water outlet 12 is located on the upper side of the condenser 11, and the water inlet 13 is located on the lower side. One end of the condenser outlet pipe 22 is connected to the condenser 11. At the bottom, one end is connected to the thermal expansion valve 10, and the other end of the thermal expansion valve 10 is connected to the evaporation main pipe 23. After the evaporation main pipe 23, there are parallel storage room evaporation coil 8 and desalination equipment evaporation coil 9. The storage room evaporation coil 8 is arranged around the storage room 20. The other end of the storage room evaporation coil 8 and the desalination equipment evaporation coil 9 merges at one end of the compressor return pipe 24. The other end of the compressor return pipe 24 is connected to the compressor 3. The temperature sensing bulb 19 is placed on the compressor return pipe 24. The thermal expansion valve 10 and the temperature sensing bulb 19 are connected by the capillary tube 25.

[0008] The plasma system consists of a plasma generator 7 embedded in the wall of the storage room 20.

[0009] The plasma generating devices 7 are evenly embedded in the inner wall of the storage chamber 20 at a certain equal distance, and there is no wall obstruction in front of the side of the plasma generating device 7 facing the inside of the storage chamber 20.

[0010] The condenser inlet pipe 21, condenser outlet pipe 22, and compressor return pipe 24 are made of copper; the capillary tube 25 is made of copper; the storage room evaporator coil 8, the desalination equipment evaporator coil 9, and the main evaporator pipe 23 are made of aluminum. The condenser 11 is a shell-and-tube water-cooled condenser, and the inner tube connecting the outlet 12 and the inlet 13 on the condenser 11 is made of corrosion-resistant stainless steel.

[0011] The refrigerant used in the entire piping system is R600A.

[0012] Duct 2 is a fiberglass anti-corrosion duct with good corrosion resistance.

[0013] The seawater desalination tank 14, heat exchange baffle 15, and baffle 16 are all made of titanium alloy. The heat exchange baffle 15 has a certain slope and three sides are tightly connected to the seawater desalination tank 14. The gap between the remaining side and the seawater desalination tank 14 is small, allowing only water droplets to drip. The baffle 16 is tightly connected to the four walls of the seawater desalination tank 14. The baffle 16 has slopes in both the horizontal and vertical directions and is connected to the freshwater outlet 18 at the lowest point.

[0014] All four high-pressure water mist nozzles are identical, made of corrosion-resistant stainless steel, with stainless steel nozzles and guide vanes, and contain an anti-drip device. Through centrifugal motion, water is sprayed out from the nozzle to form a water mist.

[0015] Wind turbine 1 adopts an offshore corrosion-resistant wind turbine.

[0016] The seawater desalination system uses a humidification and condensation method. When the fan 1 starts, air is drawn into the duct 2 and first passes through the compressor 3. The high temperature of the compressor 3 heats the air, and convection helps the compressor cool down. The heated air then passes through the activated carbon layer 4, where the activated carbon's adsorption capacity purifies the air. The clean air is then humidified by water sprayed from four high-pressure water mist nozzles 6 until it is nearly saturated, and then sent into the seawater desalination tank 14. The high-temperature, saturated, humid air condenses into small water droplets upon contact with the heat exchanger baffles 15, which are below its dew point temperature. These water droplets then travel along the heat exchanger... The heat insulation plate 15 drips onto the baffle 16, and then flows out along the slope of the baffle 16 to the fresh water outlet 18. Because the plasma generated by the plasma generator 7 can combine with water to form low-temperature plasma-activated water, which is beneficial to the human body, the remaining gas is discharged through the exhaust port 17. In the refrigeration system, after compression by the compressor 3, the high-temperature, high-pressure refrigerant gas enters the condenser 11 through the condenser inlet pipe 21. The refrigerant is cooled by renewable low-temperature seawater flowing through the pipes connected to the outlet 12 and inlet 13. The high-temperature, high-pressure gas discharged from the compressor 3 enters the refrigeration system. In condenser 11, heat is transferred to the low-temperature seawater, condensing it into liquid refrigerant. This liquid flows through condenser outlet pipe 22 to thermal expansion valve 10 for throttling and pressure reduction. The low-pressure liquid refrigerant flowing out of thermal expansion valve 10 flows to evaporator main pipe 23, then splits into two paths: storage room evaporator coil 8 and desalination equipment evaporator coil 9. In storage room evaporator coil 8, the refrigerant absorbs heat from the air in storage room 20, lowering the air temperature and achieving refrigerated storage. In storage room evaporator coil 8, the refrigerant changes from liquid to gaseous. In desalination equipment evaporator coil 9, the refrigerant absorbs heat from the surrounding air, further reducing its temperature. The surface temperature of the heat exchange baffle 15 is measured. Saturated air entering from the air duct 2 will condense water on the heat exchange baffle 15 to produce fresh water. The refrigerant in the evaporator coil 9 of the desalination equipment changes from liquid to gas. After completing the evaporation process, it converges in the compressor return pipe 24. The low-temperature and low-pressure refrigerant gas enters the compressor 3 through the compressor return pipe 24 and circulates repeatedly. A temperature sensor 19 is installed in the compressor return pipe 24. The temperature sensor 19 can sense the temperature of the evaporator outlet and convert the temperature information into pressure information. It is transmitted to the thermostatic expansion valve 10 through the capillary tube 25 to adjust its valve opening and thus regulate the flow rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 1The following are the label names: 1. Fan, 2. Air duct, 3. Compressor, 4. Activated carbon layer, 5. Handle, 6. High-pressure water mist nozzle, 7. Plasma generator, 8. Storage room evaporator coil, 9. Desalination equipment evaporator coil, 10. Thermal expansion valve, 11. Condenser, 12. Water outlet, 13. Water inlet, 20. Storage room, 25. Capillary tube.

[0019] Figure 2 This is a schematic diagram of the cooling system coupled with the plasma system of the present invention.

[0020] Figure 2 The following are the label names: 3. Compressor, 7. Plasma generator, 8. Storage room evaporator coil, 9. Desalination equipment evaporator coil, 10. Thermal expansion valve, 11. Condenser, 12. Water outlet, 13. Water inlet, 19. Temperature sensor, 20. Storage room, 21. Condenser inlet pipe, 22. Condenser outlet pipe, 23. Evaporation main pipe, 24. Compressor return pipe, 25. Capillary tube.

[0021] Figure 3 This is a schematic diagram illustrating the principle of seawater desalination according to the present invention.

[0022] Figure 3 The following are the label names: 1. Fan, 2. Air duct, 3. Compressor, 4. Activated carbon layer, 5. Handle, 6. High-pressure water mist nozzle, 14. Seawater desalination tank, 15. Heat exchange baffle, 16. Baffle, 17. Exhaust port, 18. Fresh water outlet, 20. Storage room. Detailed Implementation

[0023] A storage system suitable for island material storage and seawater desalination includes three modules: a refrigeration system, a plasma system, and a seawater desalination system. The seawater desalination system includes a fan 1, a duct 2, a compressor 3, an activated carbon layer 4, a handle 5, a high-pressure water mist nozzle 6, an evaporator coil for desalination equipment 9, a seawater desalination tank 14, a heat exchange baffle 15, a baffle 16, an exhaust vent 17, and a freshwater outlet 18. The refrigeration system coupled with the plasma system includes components such as a compressor 3, a plasma generator 7, an evaporator coil for the storage room 8, an evaporator coil for the desalination equipment 9, a thermal expansion valve 10, a condenser 11, an outlet 12, an inlet 13, a temperature sensor 19, a storage room 20, a condenser inlet pipe 21, a condenser outlet pipe 22, an evaporation main pipe 23, a compressor return pipe 24, and a capillary tube 25.

[0024] The refrigeration system, plasma system, and seawater desalination system can operate independently or in combination.

[0025] When the storage room requires cooling, the high-temperature, high-pressure refrigerant exits from the compressor 3 and enters the upper part of the condenser 11 through the condenser inlet pipe 21. The refrigerant flows downwards within the condenser 11. Meanwhile, low-temperature seawater drawn from the sea enters through the condenser 11 inlet 13 and flows out through the outlet 12, flowing upwards. The two refrigerants come into full contact, and through heat conduction and convection, the refrigerant transfers heat to the low-temperature seawater, changing the refrigerant from a gaseous state to a liquid state. The liquid refrigerant exiting from the lower part of the condenser 11 flows through the condenser outlet pipe 22 into the thermal expansion valve 10, where it undergoes throttling and pressure reduction, changing from a high-temperature, high-pressure liquid to a low-temperature, low-pressure liquid. Then, the refrigerant flows through the evaporation manifold 23. Following the evaporation manifold 23 are parallel, independent storage room evaporation coils 8 and desalination equipment evaporation coils 9, which are components of the refrigeration system and the seawater desalination system, respectively. The refrigerant flows through the storage chamber evaporator coils 8 arranged around the storage chamber 20. The refrigerant in the evaporator coils 8 absorbs heat from the air inside the storage chamber 20, which not only lowers the air temperature inside the storage chamber 20 but also provides a more suitable operating temperature for the plasma generator 7 arranged on the wall. The refrigerant in the storage chamber evaporator coils 8 changes from a liquid to a gaseous state. The refrigerant in the desalination equipment evaporator coils 9 absorbs heat from the surrounding air, further reducing the surface temperature on the heat exchange baffle 15. The refrigerant in the desalination equipment evaporator coils 9 changes from a liquid to a gaseous state. After the evaporation process is completed, the pipes converge at the compressor return pipe 24, and a temperature sensor 19 is placed on the compressor return pipe 24 for temperature monitoring. The sensor converts the obtained temperature signal into a pressure signal, which is transmitted to the thermostatic expansion valve 10 through the capillary tube 25 for flow regulation.

[0026] When freshwater production is needed, the high-humidity air on the island is blown into the duct 2 by the fan 1. The air blows over the compressor 3, and through convection, the high-temperature compressor 3 heats the air, while the air also cools the compressor. Furthermore, at the same relative humidity, the higher the dry-bulb temperature, the higher the dew point temperature and moisture content, the higher the required condensation temperature, and the more condensate is produced. The heated air is filtered through the activated carbon layer 4 to remove impurities, and then humidified to saturation by water mist sprayed from the high-pressure water mist nozzle 6. The saturated humid air is then sent into the seawater desalination tank 14. When the saturated humid air encounters the heat exchange baffle 15, which has a surface temperature lower than the dew point temperature after heat exchange with the refrigerant in the evaporator coil 9 of the desalination equipment, the humid air condenses on the surface of the heat exchange baffle 15, producing freshwater, which falls down the slope and accumulates on the baffle 16. Since the baffle 16 has slopes in both the longitudinal and transverse directions, the accumulated condensate will only be discharged from the fresh water outlet 18. Furthermore, the water and the plasma generated by the plasma generator 7 can combine to synthesize a certain concentration of plasma-activated fresh water, which is beneficial to human health. The remaining air is discharged through the exhaust port 17, which is located not far above the fresh water outlet 18.

[0027] When sterilization of the storage room is required, the plasma generator 7 generates plasma by ionizing the air. The plasma achieves sterilization by destroying the integrity of the cell membrane and disrupting the intracellular osmotic pressure. Furthermore, the plasma reacts with the fresh water coming out of the fresh water outlet 18 to form plasma-activated water rich in active substances. When consumed by the human body, it can improve the body's microcirculation and promote metabolism.

[0028] The refrigeration system, plasma system, and seawater desalination system of this invention can operate independently or in combination, making full use of the advantages of islands by utilizing the recyclable and renewable low-temperature seawater and the high-humidity natural climate, and adapting to local conditions.

Claims

1. A storage room system suitable for island material storage and seawater desalination, characterized in that: The system consists of three modules: a refrigeration system, a plasma system, and a seawater desalination system. The seawater desalination system consists of a blower (1), a duct (2), a compressor (3), an activated carbon layer (4), a handle (5), high-pressure water mist nozzles (6), an evaporator coil (9) for the desalination equipment, a seawater desalination tank (14), a heat exchange baffle (15), a baffle (16), an exhaust port (17), and a freshwater outlet (18). The duct (2) is connected after the blower (1). Inside the duct (2) are a compressor (3) and four high-pressure water mist nozzles (6) arranged in pairs on both sides of the duct. A handle (5) is installed on the duct (2) below the high-pressure water mist nozzles (6). 2) The other end is connected to the seawater desalination tank (14). There is a heat exchange baffle (15) with four closed sides in the middle of the seawater desalination tank (14). An evaporation coil (9) of the desalination equipment is installed in the heat exchange baffle (15) in parallel with the evaporation coil (8) of the storage room. There is a baffle (16) below the heat exchange baffle (15) that is inclined towards the fresh water outlet (18). The baffle (16) is tightly connected to the four walls of the seawater desalination tank (14). The fresh water outlet (18) is connected at the lowest angle of the baffle (16). An exhaust hole (17) is set at a certain distance directly above the baffle (16). The refrigeration system consists of a compressor (3), a storage room evaporator coil (8), a desalination equipment evaporator coil (9), a thermal expansion valve (10), a condenser (11), a water outlet (12), a water inlet (13), a temperature sensor (19), a storage room (20), a condenser inlet pipe (21), a condenser outlet pipe (22), an evaporation main pipe (23), a compressor return pipe (24), and a capillary tube (25). One end of the condenser inlet pipe (21) is connected to the compressor (3), and the other end is connected to the upper part of the condenser (11). The water outlet (12) is located above the side of the condenser (11), and the water inlet (13) is located below it. One end of the condenser outlet pipe (22) is connected to the condenser. (11) is connected to a thermal expansion valve (10) at one end and to an evaporation main pipe (23) at the other end. After the evaporation main pipe (23), there are parallel storage room evaporation coils (8) and desalination equipment evaporation coils (9). The storage room evaporation coils (8) are arranged around the storage room (20). The other ends of the storage room evaporation coils (8) and desalination equipment evaporation coils (9) are joined to one end of the compressor return pipe (24). The other end of the compressor return pipe (24) is connected to the compressor (3). The temperature sensor (19) is placed on the compressor return pipe (24). The thermal expansion valve (10) and the temperature sensor (19) are connected by a capillary tube (25). The plasma system consists of a plasma generating device (7) embedded in the wall of the storage room (20).

2. A storage room system for island material storage and seawater desalination according to claim 1, characterized in that: The plasma generating devices (7) are evenly embedded in the inner wall of the storage room (20) at a certain equal distance, and there is no wall obstruction in front of the side of the plasma generating device (7) facing the inside of the storage room (20).

3. A storage room system for island material storage and seawater desalination according to claim 1, characterized in that: The condenser inlet pipe (21), condenser outlet pipe (22), and compressor return pipe (24) are copper pipes, the capillary tube (25) is a copper pipe, the storage room evaporator coil (8), the desalination equipment evaporator coil (9), and the evaporation main pipe (23) are aluminum pipes; the condenser (11) is a shell-and-tube water-cooled condenser, and the inner pipe connecting the outlet (12) and inlet (13) on the condenser (11) is a corrosion-resistant stainless steel pipe.

4. A storage room system for island material storage and seawater desalination according to claim 1, characterized in that: The refrigerant used in the entire piping system is R600A.

5. A storage room system for island material storage and seawater desalination according to claim 1, characterized in that: The air duct (2) is a fiberglass anti-corrosion air duct with good corrosion resistance.

6. A storage room system for island material storage and seawater desalination according to claim 1, characterized in that: The seawater desalination tank (14), heat exchange baffle (15), and baffle (16) are all made of titanium alloy. The heat exchange baffle (15) has a certain slope and is tightly connected to the seawater desalination tank (14) on three sides. The gap between the remaining side and the seawater desalination tank (14) is small, allowing only water droplets to fall. The baffle (16) is tightly connected to the four walls of the seawater desalination tank (14). The baffle (16) has slopes in both the horizontal and vertical directions and is connected to the freshwater outlet (18) at the lowest point.

7. A storage room system for island material storage and seawater desalination according to claim 1, characterized in that: The four high-pressure water mist nozzles (6) are all the same, all made of corrosion-resistant stainless steel, with stainless steel nozzles and stainless steel guide vanes, and contain an anti-drip device. Through centrifugal motion, water is sprayed out from the nozzle to form water mist.

8. A storage room system for island material storage and seawater desalination according to claim 1, characterized in that: The wind turbine (1) adopts an offshore corrosion-resistant wind turbine.

9. The method for a storage room system suitable for island material storage and seawater desalination according to claim 1, characterized in that: The seawater desalination system uses a humidification and condensation method to produce desalination air. When the fan (1) is started, air is drawn into the duct (2) and passes through the compressor (3). The high temperature of the compressor (3) heats the air, and convection helps the compressor cool down. The air heated to a certain temperature passes through the activated carbon layer (4), where the activated carbon adsorption capacity is used to purify the air. The clean air is then humidified by water sprayed from four high-pressure water mist nozzles (6) until it is nearly saturated. The humidified air is then sent into the seawater desalination tank (14). The high-temperature saturated humid air condenses into small water droplets when it comes into contact with the heat exchange baffle (15), which is below its dew point temperature. The small water droplets travel along the heat exchange baffle (15). The gas drips onto the baffle (16) at a slope, and then flows out along the slope of the baffle (16) to the fresh water outlet (18). Since the plasma generated by the plasma generator (7) can combine with water to form low-temperature plasma activated water, it is beneficial to the human body. The remaining gas is discharged through the exhaust port (17). In the refrigeration system, after the compression process of the compressor (3), the high-temperature and high-pressure refrigerant gas enters the condenser (11) through the condenser inlet pipe (21). The refrigerant is cooled by the renewable low-temperature seawater flowing through the pipes connected to the outlet (12) and inlet (13). The high-temperature and high-pressure gas discharged from the compressor (3) enters the condenser (11). 1) Heat is transferred to the low-temperature seawater, condensing into liquid refrigerant. The liquid flows through the condenser outlet pipe (22) to the thermal expansion valve (10) for throttling and pressure reduction. The low-pressure refrigerant liquid flowing out of the thermal expansion valve (10) flows to the evaporation main pipe (23), and then splits into two paths: the storage room evaporation coil (8) and the desalination equipment evaporation coil (9). The refrigerant in the storage room evaporation coil (8) absorbs heat from the air in the storage room (20), reducing the air temperature in the storage room (20) and achieving the effect of cold storage. The refrigerant in the storage room evaporation coil (8) changes from liquid to gas, and the refrigerant in the desalination equipment evaporation coil (9) absorbs heat from the surrounding air, further reducing the heat exchange rate. The surface temperature on the heat exchanger (15) is such that saturated air coming in from the duct (2) will condense into water on the heat exchanger (15), thus achieving the production of fresh water. The refrigerant in the evaporator coil (9) of the desalination equipment changes from liquid to gas. After completing the evaporation process, it merges into the compressor return pipe (24). The low-temperature and low-pressure refrigerant gas enters the compressor (3) through the compressor return pipe (24) and circulates repeatedly. A temperature sensor (19) is installed on the compressor return pipe (24). The temperature sensor (19) can sense the temperature at the evaporator outlet and convert the temperature information into pressure information. Through the capillary tube (25), it is transmitted to the thermal expansion valve (10) to adjust its valve opening, thereby regulating the flow rate.

Images