Cold storage type refrigeration house system directly driven by wind power

Abstract

The utility model discloses a cold accumulation type refrigeration house system directly driven by wind power, which comprises a wind power driving system, a refrigeration system, a cold accumulation system and a refrigeration house, the refrigeration system comprises a compressor, a radiator, a condenser, a throttle valve, an evaporator, a water pump, a defrosting water tank, an air cooler, a water pump, a refrigerant pump, a fan, a first valve and a fourth valve; the cold storage system comprises a cold storage box, a secondary refrigerant pump, a second valve, a third valve and a fifth valve. The wind power driving system drives compression to refrigerate, the cold storage box stores cold energy, the evaporator and the cold storage box are used for supplying cold to the refrigeration house, and two modes of wind power driving cold supply and cold storage box cold supply are achieved. Wind power driving and cold storage technologies are combined, natural resources are fully utilized, consumption of electric energy is reduced, the problem of imbalance between intermittent electric power and requirements is effectively solved, and the purposes of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model relates to a cold storage type cold storage system directly driven by wind power, belonging to the technical field of cold storage. Background Art

[0002] As an important facility, cold storage has played an important role in modern logistics, agriculture, medical care, chemicals and other fields. With economic development, cold storage construction has also developed rapidly. With the requirements of efficiency, energy conservation and consumption reduction have also been highly concerned. In areas such as islands, offshore platforms, mountains, and remote grasslands where there is no city power supply or the city power is limited, the city power cannot be used to drive the cold storage refrigeration system. But these places have rich wind resources. Wind power is one of the new energy sources that is green, clean, renewable and has broad development prospects. With the continuous development of renewable energy utilization technology, wind power plays a key role as an emerging energy source. However, since cold storage consumes a lot of electricity, considering the randomness of wind power, wind power-driven cold storage refrigeration needs to be equipped with high-power storage equipment, which will not only lead to increased investment, but also potential safety failures such as storage fires. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a cold storage type cold storage system directly driven by wind power.

[0004] The technical solution provided by the utility model is as follows: a wind-driven cold storage system, which includes a wind-driven system and a cold storage; the wind-driven system is connected to a refrigeration system, which is connected to a cold storage system, and both the refrigeration system and the cold storage system are connected to the cold storage; the refrigeration system includes a compressor, the exhaust port of the compressor is connected to an air inlet of a radiator, the air outlet of the radiator is connected to a first inlet of a condenser, the first outlet of the condenser is connected to a first inlet of an evaporator through a throttle valve, the second outlet of the condenser is connected to a water pump, the other end of the water pump is connected to a first inlet of a defrost water tank, the first outlet of the defrost water tank is connected to a second inlet of the condenser, and the second inlet and the second outlet of the defrost water tank are connected to a cold air blower respectively The defrost inlet and defrost outlet are connected; the first outlet of the evaporator is connected to the air inlet of the compressor through the fourth valve; the second outlet of the evaporator is connected to the refrigerant pump through the first valve, the refrigerant pump is connected to the inlet of the cold air fan placed in the cold storage, and the outlet of the cold air fan is connected to the second inlet of the evaporator; the cold storage system includes a cold storage box, a coolant pump, a second valve, a third valve and a fifth valve; the first inlet of the cold storage box is connected to the first outlet of the evaporator through the second valve, the first outlet of the cold storage box is connected to the air inlet of the compressor, the second inlet of the cold storage box is connected to the coolant pump through the fifth valve, the coolant pump is connected to the outlet of the cold air fan, and the second outlet of the cold storage box is connected to the refrigerant pump of the refrigeration system through the third valve.

[0005] Furthermore, the wind drive system includes a wind turbine, a first gearbox, a second gearbox, a third gearbox, a generator and a battery; the wind turbine includes connected blade support columns and blades, the blades are connected to the gear shaft of the gearbox through a rotating shaft, the gear of the gearbox is connected to the input shaft gear of the first gearbox through a chain, the first gearbox, the second gearbox and the third gearbox are connected by a shaft, one output end of the third gearbox is connected to the generator, the generator is connected to the battery, and the other output end of the third gearbox is connected to the compressor of the refrigeration system.

[0006] The beneficial effects of the utility model are as follows: the utility model drives the blades to rotate through wind power, drives compression through a multi-stage gearbox to refrigerate, stores the cold in a cold storage box, and supplies cold to the cold storage through an evaporator and a cold storage box, realizing two modes of wind-driven cooling and cold storage box cooling. The utility model combines wind-driven cooling with cold storage technology, fully utilizes natural resources, reduces the consumption of electric energy, effectively alleviates the imbalance between intermittent power and demand, and achieves the goal of energy conservation and emission reduction.

[0007] First, the utility model realizes a refrigeration cycle directly driven by wind through a wind turbine, blades, a gearbox, and a compressor. The refrigeration cycle includes components such as a compressor, a condenser, a throttle valve, and an evaporator to realize a vapor compression refrigeration cycle. The refrigerant in the evaporator absorbs the heat of the coolant, and the coolant after cooling flows into the air cooler to absorb heat, providing cold capacity for the cold storage, realizing clean energy refrigeration, especially meeting the needs of cold storage in areas with abundant wind resources but no city electricity supply or tight city electricity supply. While meeting the cooling capacity, it protects the environment and relieves energy pressure. The compressor is the largest power-consuming equipment in a conventional electric-driven refrigeration system. The utility model directly drives the compressor through the fan impeller, eliminating the power consumption of the compressor and the investment costs of the required equipment such as power storage and power inverter, and also reducing safety hazards during operation.

[0008] Secondly, the utility model realizes cold storage cooling. When wind energy resources are abundant, the cold storage medium is used to store the cold energy for use in the cold storage when there is no wind. This energy storage method can store a large amount of cold energy when the wind is strong, ensuring that there is enough cold energy to supply the cold storage when the wind is weak or there is no wind, thus ensuring the stability of the operation of the entire refrigeration system in low wind or no wind weather.

[0009] Thirdly, the utility model recovers the waste heat of the condenser and adds a defrost water tank and auxiliary valves. The waste heat of the condenser can be used for defrosting the air cooler. The application of the cold storage defrosting system not only improves the refrigeration efficiency of the cold storage, helps to extend the service life of the equipment, and improves energy utilization, thereby reducing the impact on the environment.

[0010] Finally, the utility model realizes wind power generation through wind turbines, blades, gearboxes, and generators, and stores the generated electric energy in batteries, providing electric energy for components in the cold storage system that consume less power, such as coolant pumps or refrigerant pumps, condensers, air coolers, and electronic control systems, thereby reducing or even disconnecting from the power grid to provide wind power only for components that consume less power, reducing the investment in power storage solutions and improving the safety factor of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] In the figure: 1. first gearbox, 2. second gearbox, 3. third gearbox, 4. compressor, 5. radiator, 6. condenser, 7. throttle valve, 8. evaporator, 9. cold storage box, 10. defrost water tank, 11. air cooler, 12. generator, 13. battery, 14. water pump, 15. coolant pump, 16. refrigerant pump, 17. first valve, 18. second valve, 19. third valve, 20. fourth valve, 21. fifth valve, 22. blades, 23. wind turbine, 24. blade support column, 25. fan, 26. cold storage. DETAILED DESCRIPTION

[0013] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0014] like Figure 1 As shown, a cold storage type cold storage system driven directly by wind power includes a wind driving system, a refrigeration system, a cold storage system, and a cold storage 26.

[0015] The wind drive system includes a wind turbine 23, a first gearbox 1, a second gearbox 2, a third gearbox 3, a generator 12 and a battery 13. The wind turbine 23 includes a blade support column 24 and a blade 22 connected to each other, the blade 22 is connected to the gear shaft of the gearbox through a rotating shaft, the gear of the gearbox is connected to the input shaft gear of the first gearbox 1 through a chain, the first gearbox 1, the second gearbox 2 and the third gearbox 3 are connected through a shaft, and the gearbox can be a gearbox or an automatic gearbox with an adjustable transmission ratio; one output end of the third gearbox 3 is connected to the generator 12, the generator 12 is connected to the battery 13, and the other output end of the third gearbox 3 is connected to the compressor 4 of the refrigeration system.

[0016] The refrigeration system includes a compressor 4, a radiator 5, a condenser 6, a throttle valve 7, an evaporator 8, a water pump 14, a defrost water tank 10, an air cooler 11, a water pump 14, a refrigerant pump 16, a fan 25, a first valve 17 and a fourth valve 20. The air cooler 11 is placed in a cold storage 26. The exhaust port of the compressor 4 is connected to the air inlet of the radiator 5, the air outlet of the radiator 5 is connected to the first inlet of the condenser 6, the first outlet of the condenser 6 is connected to the first inlet of the evaporator 8 through the throttle valve 7, the second outlet of the condenser 6 is connected to the water pump 14, the other end of the water pump 14 is connected to the first inlet of the defrost water tank 10, the first outlet of the defrost water tank 10 is connected to the second inlet of the condenser 6, and the second inlet and the second outlet of the defrost water tank 10 are respectively connected to the defrost inlet and the defrost outlet of the air cooler 11. The first outlet of the evaporator 8 is connected to the air inlet of the compressor 4 through the fourth valve 20. The second outlet of the evaporator 8 is connected to the refrigerant pump 16 through the first valve 17 , the refrigerant pump 16 is connected to the inlet of the air cooler 11 , and the outlet of the air cooler 11 is connected to the second inlet of the evaporator 8 .

[0017] The cold storage system includes a cold storage tank 9, a coolant pump 15, a second valve 18, a third valve 19 and a fifth valve 21. The first inlet of the cold storage tank 9 is connected to the first outlet of the evaporator 8 through the second valve 18, the first outlet of the cold storage tank 9 is connected to the air inlet of the compressor 4, the second inlet of the cold storage tank 9 is connected to the coolant pump 15 through the fifth valve 21, the coolant pump 15 is connected to the outlet of the air cooler 11, and the second outlet of the cold storage tank 9 is connected to the refrigerant pump 16 of the refrigeration system through the third valve 19.

[0018] The specific operation mode is:

[0019] 1. Wind-driven cooling mode

[0020] When driven by wind, the blades 22 capture wind energy and drive the shaft to rotate, converting the wind energy into mechanical energy. The shaft drives the gears in the gearbox to rotate, and the gears in the gearbox drive the input shaft gears of the first gearbox 1 to rotate through the chain, thereby driving the first gearbox 1, the second gearbox 2 and the third gearbox 3 to work in turn, and the third gearbox 3 drives the compressor 4 to work. The compressor 4 compresses the low-temperature and low-pressure refrigerant into high-temperature and high-pressure refrigerant vapor and then discharges it through the exhaust port of the compressor 4. The discharged refrigerant vapor enters the radiator 5 for heat exchange. The refrigerant vapor after heat exchange enters the condenser 6 to condense and release heat to become a refrigerant liquid. The refrigerant liquid enters the evaporator 8 after throttling by the throttle valve 7 to evaporate and absorb heat. The refrigerant liquid is a refrigerant liquid after evaporation and heat absorption. The refrigerant liquid enters the compressor 4 after passing through the fourth valve 20 to be compressed.

[0021] At this time, the first valve 17 and the refrigerant pump 16 are opened. The refrigerant condenses and releases heat in the evaporator 8. The refrigerant after releasing heat enters the refrigerant pump 16 through the first valve 17, and enters the air cooler 11 through the refrigerant pump 16 to provide cooling for the cold storage 26. The refrigerant after heat exchange is discharged through the outlet of the air cooler 11, and the discharged refrigerant returns to the evaporator 8 for heat exchange.

[0022] At the same time, the heat released by the refrigerant in the condenser 6 can also be used for defrosting the cold storage. At this time, the water pump 14 is turned on, and the defrosted water absorbs the heat released by the refrigerant in the condenser 6, enters the water pump 14 through the second outlet of the condenser 6, and the defrosted water enters the defrost water tank 10 through the water pump 14 for heat exchange. The heat released by the defrosted water is used for defrosting the cooling fan 11 in the cold storage 26, and the defrosted water returns to the condenser 6 after heat exchange.

[0023] When the outdoor wind speed is high and the cooling capacity provided by the evaporator 8 is greater than the cooling capacity required by the cold storage 26, the second valve 18 can be opened and the fourth valve 20 can be closed. At this time, the cold storage tank 9 is in a cold storage state. The refrigerant vapor discharged from the evaporator 8 enters the cold storage tank 9 through the second valve 18, and exchanges heat with the cold storage medium in the cold storage tank 9. The refrigerant vapor after heat exchange returns to the compressor 4 for compression.

[0024] When the outdoor wind speed is high, the generator 12 can be driven by wind to generate electricity. When driven by wind, the wind energy is captured by the blades 22 and drives the shaft to rotate, converting the wind energy into mechanical energy. The shaft drives the gears in the gearbox to rotate, and the gears in the gearbox drive the input shaft gear of the first gearbox 1 to rotate through the chain, thereby driving the first gearbox 1, the second gearbox 2 and the third gearbox 3 to work in turn, and the third gearbox 3 drives the generator 12 to work. The battery 13 stores the electric energy generated by the generator 12 and supplies power to other components in the system.

[0025] 2. Cold storage box cooling mode

[0026] When the outdoor wind speed is low or there is no wind, the cold storage box 9 can be used to provide cold capacity for the cold storage 26. At this time, the third valve 19, the fifth valve 21, the coolant pump 15 and the refrigerant pump 16 are opened. The cold storage medium in the cold storage box 9 enters the refrigerant pump 16 through the third valve 19, and enters the air cooler 11 in the cold storage 26 through the refrigerant pump 16. The cold storage medium exchanges heat in the air cooler 11, and the cold storage medium after heat exchange is discharged from the outlet of the air cooler 11. The discharged cold storage medium enters the coolant pump 15, and returns to the cold storage box 9 through the fifth valve 21.

[0027] It should be understood that the parts not elaborated in detail in this specification belong to the prior art. The above embodiments are only descriptions of the preferred implementation methods of the utility model, and are not intended to limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements made by ordinary engineers and technicians in this field to the technical solution of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A cold storage system driven directly by wind, comprising a wind drive system and a cold storage; characterized in that The wind-driven system is connected to the refrigeration system, which is connected to the cold storage system. Both the refrigeration system and the cold storage system are connected to the cold storage. The refrigeration system includes a compressor, the exhaust port of the compressor is connected to the air inlet of the radiator, the air outlet of the radiator is connected to the first inlet of the condenser, the first outlet of the condenser is connected to the first inlet of the evaporator through a throttle valve, the second outlet of the condenser is connected to a water pump, the other end of the water pump is connected to the first inlet of the defrost water tank, the first outlet of the defrost water tank is connected to the second inlet of the condenser, the second inlet and the second outlet of the defrost water tank are connected to the defrost inlet and the defrost outlet of the air cooler respectively; the first outlet of the evaporator is connected to the first inlet of the defrost water tank through the fourth inlet of the evaporator. The valve is connected to the air inlet of the compressor; the second outlet of the evaporator is connected to the refrigerant pump through the first valve, the refrigerant pump is connected to the inlet of the air cooler placed in the cold storage, and the outlet of the air cooler is connected to the second inlet of the evaporator; the cold storage system includes a cold storage box, a coolant pump, a second valve, a third valve and a fifth valve; the first inlet of the cold storage box is connected to the first outlet of the evaporator through the second valve, the first outlet of the cold storage box is connected to the air inlet of the compressor, the second inlet of the cold storage box is connected to the coolant pump through the fifth valve, the coolant pump is connected to the outlet of the air cooler, and the second outlet of the cold storage box is connected to the refrigerant pump of the refrigeration system through the third valve.

2. According to claim 1, a wind-driven cold storage system is characterized in that The wind drive system includes a wind turbine, a first gearbox, a second gearbox, a third gearbox, a generator and a battery; the wind turbine includes a connected blade support column and blades, the blades are connected to the gear shaft of the gearbox through a rotating shaft, the gear of the gearbox is connected to the input shaft gear of the first gearbox through a chain, the first gearbox, the second gearbox and the third gearbox are connected through a shaft, one output end of the third gearbox is connected to the generator, the generator is connected to the battery, and the other output end of the third gearbox is connected to the compressor of the refrigeration system.

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