Cooling device for all-vanadium liquid flow energy storage

Abstract

The utility model relates to the technical field of all-vanadium liquid flow energy storage, in particular to a cooling device for all-vanadium liquid flow energy storage. An electrolyte buffer tank and a circulating water pump penetrate through the outer surface of a circulating pipeline, a cooling pipe is arranged on the outer surface of the electrolyte buffer tank, a compressor is arranged at a port of the cooling pipe, a heat exchange pipe is arranged at an outlet of the compressor, a pressure release pipe is arranged at a port of the heat exchange pipe, and a port of the pressure release pipe is connected with the cooling pipe. The air conditioner has the beneficial effects that when the fan blades blow and cool high-temperature and high-pressure condensing agent gas in the heat exchange pipes, air passing through the heat exchange pipes can become hot air, and the hot air can be conveyed into the temperature supply bin through the heat conveying air pipe to preheat the condensing agent gas in the air inlet pipe located in the temperature supply bin; and the compressor can more quickly pressurize condensing agent gas into high-temperature and high-pressure gas, so that the heat energy is recycled when the electrolyte is cooled, and the energy loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of all-vanadium liquid flow energy storage, in particular to a cooling device for all-vanadium liquid flow energy storage. Background Art

[0002] All-vanadium liquid flow energy storage is an all-vanadium liquid flow battery, which is a redox battery with vanadium as the active substance in a circulating liquid state.

[0003] Among existing technologies, vanadium liquid flow batteries are considered one of the most promising technologies for large-scale energy storage due to their controllable capacity, long cycle life, high safety, excellent efficiency, and environmental friendliness. While being able to be integrated with solar and wind energy systems, they can also be used as peak-shaving systems for power stations, energy storage systems in remote areas, emergency power supply systems, and energy for electric vehicles. They are currently a research hotspot in the energy field.

[0004] However, the electrolyte of the all-vanadium liquid flow battery is composed of an aqueous sulfuric acid solution containing vanadium ions of different valence states, in which the temperature has a particularly important impact on the electrolyte. When chemical energy is converted into electrical energy, the battery system will generate a large amount of heat, which will cause the temperature of the electrolyte to rise. The existing electrolyte cooling method is to cool it by condensing agent cooling, but this cooling method does not have the heat energy recovery function, which increases energy loss. Utility Model Content

[0005] The purpose of the utility model is to provide a cooling device for all-vanadium liquid flow energy storage to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a cooling device for all-vanadium liquid flow energy storage, the cooling device for all-vanadium liquid flow energy storage comprising:

[0007] An electrolyte storage tank, wherein a circulation pipe is fixed inside the electrolyte storage tank, and the outer surface of the circulation pipe passes through the electrolyte buffer tank and the circulating water pump. A cooling pipe is provided on the outer surface of the electrolyte buffer tank, a compressor is provided at the cooling pipe port, a heat exchange pipe is provided at the compressor outlet, a pressure relief pipe is provided at the heat exchange pipe port, and the pressure relief pipe port is connected to the cooling pipe;

[0008] The heat exchange chamber has fan blades fixed on its inner wall, a heating chamber fixed on its outer surface, and an exhaust port opened on its outer surface.

[0009] Preferably, a temperature sensor is fixed to the end of the electrolyte buffer tank, an air intake pipe is fixed to one end of the cooling pipe, and the air intake pipe is connected and fixed to the compressor inlet.

[0010] Preferably, a pressure relief pipe is fixed to the other end of the cooling pipe, a liquid feeding pipe is fixed to the port of the pressure relief pipe, the diameter of the pressure relief pipe is much smaller than the diameters of the liquid feeding pipe and the cooling pipe, and the port of the liquid feeding pipe is fixed to the heat exchange pipe.

[0011] Preferably, an air outlet pipe is fixed at the outlet of the compressor, a heat exchange pipe is fixed to the port of the air outlet pipe, the heat exchange pipes are arranged in a 'U'-shaped array, and the heat exchange pipes are located inside the heat exchange chamber.

[0012] Preferably, the heat exchange tube is located inside the heat exchange bin above the fan blades, a heat transfer air pipe is fixed to the surface of the heat exchange bin, and a temperature supply bin is fixed to the end of the heat transfer air pipe.

[0013] Preferably, the heat transfer air pipe is connected to the interior of the heat exchange chamber, the heat transfer air pipe is located on the inner wall surface opposite to the fan blades, and the temperature supply chamber is an internal hollow structure.

[0014] Preferably, the heat supply air pipe is connected to the interior of the heating chamber, the air inlet pipe passes through the interior of the heating chamber, and an exhaust port is provided on the outer surface of the heating chamber opposite to the heat supply air pipe, and the exhaust port is connected to the interior of the heating chamber.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] When the fan blades blow air to cool the high-temperature and high-pressure condenser gas in the heat exchange tube, the wind passing through the heat exchange tube will become hot air, and the hot air will be sent to the inside of the heating chamber through the heat transfer pipe to preheat the condenser gas in the air inlet pipe inside the heating chamber, so that the compressor can pressurize the condenser gas into high-temperature and high-pressure gas more quickly, thereby realizing the recovery and utilization of heat energy during the cooling of the solution and reducing energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is an exploded perspective diagram of the heat exchange component structure of the utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the structure of the circulating cooling component of the utility model;

[0021] Figure 5 This is a schematic cutaway perspective view of the heat recovery component structure of the present invention.

[0022] In the figure: 1. Electrolyte storage tank; 2. Electrolyte buffer tank; 3. Compressor; 4. Circulation pipe; 5. Temperature sensor; 6. Circulation water pump; 7. Cooling pipe; 8. Heat exchange chamber; 9. Heat transfer pipe; 10. Heating chamber; 11. Exhaust pipe; 12. Heat exchange pipe; 13. Liquid delivery pipe; 14. Pressure relief pipe; 15. Inlet pipe; 16. Fan blades; 17. Exhaust port. DETAILED DESCRIPTION

[0023] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a cooling device for all-vanadium liquid flow energy storage.

[0025] In embodiment 1, a circulation pipe 4 is fixed inside the electrolyte storage tank 1, and the outer surface of the circulation pipe 4 is interspersed with the electrolyte buffer tank 2 and the circulating water pump 6. A cooling pipe 7 is provided on the outer surface of the electrolyte buffer tank 2, and a compressor 3 is provided at the end of the cooling pipe 7. A heat exchange pipe 12 is provided at the outlet of the compressor 3, and a pressure relief pipe 14 is provided at the end of the heat exchange pipe 12. The end of the pressure relief pipe 14 is connected to the cooling pipe 7.

[0026] The inner wall of the heat exchange chamber 8 is fixed with fan blades 16 , the outer surface of the heat exchange chamber 8 is fixed with a temperature supply chamber 10 , and the outer surface of the temperature supply chamber 10 is provided with an exhaust port 17 .

[0027] On the basis of Example 1, in order to realize the recovery and utilization of heat energy during electrolyte cooling, a temperature sensor 5 is fixed to the end of the electrolyte buffer tank 2, and an air intake pipe 15 is fixed to one end of the cooling pipe 7, and the air intake pipe 15 is fixedly connected to the inlet of the compressor 3.

[0028] A pressure relief pipe 14 is fixed to the other end of the cooling pipe 7 , and a liquid feeding pipe 13 is fixed to the end of the pressure relief pipe 14 . The diameter of the pressure relief pipe 14 is much smaller than the diameters of the liquid feeding pipe 13 and the cooling pipe 7 . The end of the liquid feeding pipe 13 is fixed to the heat exchange pipe 12 .

[0029] An air outlet pipe 11 is fixed at the outlet of the compressor 3 , and a heat exchange pipe 12 is fixed to the end of the air outlet pipe 11 . The heat exchange pipe 12 is in a U-shaped array and is located inside the heat exchange chamber 8 .

[0030] The heat exchange tube 12 is located inside the heat exchange chamber 8 above the fan blades 16 . A heat transfer pipe 9 is fixed to the surface of the heat exchange chamber 8 , and a temperature supply chamber 10 is fixed to the end of the heat transfer pipe 9 .

[0031] The heat transfer air pipe 9 is connected to the interior of the heat exchange chamber 8. The heat transfer air pipe 9 is located on the inner wall surface opposite to the fan blades 16. The temperature supply chamber 10 is an internal hollow structure.

[0032] The heat transfer pipe 9 is connected to the interior of the heating chamber 10, and the air inlet pipe 15 passes through the interior of the heating chamber 10. An exhaust port 17 is provided on the outer surface of the heating chamber 10 opposite to the heat transfer pipe 9, and the exhaust port 17 is connected to the interior of the heating chamber 10.

[0033] In actual use, when the temperature sensor 5 located in the electrolyte buffer tank 2 detects that the electrolyte temperature is too high, the compressor 3 will be started to circulate the refrigerant in the cooling pipe 7, and the fan blades 16 inside the heat exchange chamber 8 will be started at the same time. The refrigerant in the cooling pipe 7 will absorb heat from the electrolyte buffer tank 2. Since the boiling point of the refrigerant is low, the refrigerant absorbs heat and boils from liquid to gas. The gaseous refrigerant enters the compressor 3 through the air inlet pipe 15. The compressor 3 will pressurize the gaseous refrigerant to form a high-pressure and high-temperature gas, and send it to the heat exchange pipe 12 through the air outlet pipe 11. The fan blades 16 will cool the refrigerant in the heat exchange pipe 12, so that the high-temperature and high-pressure refrigerant will be cooled to a certain extent. Then the high-temperature and high-pressure refrigerant gas will pass through the extremely small diameter In the pressure relief pipe 14, the high-temperature and high-pressure condenser will be depressurized, causing the pressure to drop suddenly. As the pressure decreases, the temperature decreases, and the high-temperature and high-pressure condenser gas will instantly turn into a low-temperature condenser liquid and flow into the cooling pipe 7 to continue to cool the electrode liquid buffer tank 2, thereby achieving the effect of continuously cooling the electrolyte. When the fan blades 16 blow air to cool the high-temperature and high-pressure condenser gas in the heat exchange tube 12, the wind passing through the heat exchange tube 12 will turn into hot air, and the hot air will be sent to the interior of the heating bin 10 through the heat transfer pipe 9, preheating the condenser gas in the air inlet pipe 15 inside the heating bin 10, so that the compressor 3 can pressurize the condenser gas into a high-temperature and high-pressure gas faster, thereby realizing the recovery and utilization of heat energy during electrolyte cooling and reducing energy loss.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for all-vanadium liquid flow energy storage, characterized by: The cooling device for all-vanadium liquid flow energy storage comprises: An electrolyte storage tank (1), wherein a circulation pipe (4) is fixed inside the electrolyte storage tank (1), the outer surface of the circulation pipe (4) passes through the electrolyte buffer tank (2) and the circulation water pump (6), the outer surface of the electrolyte buffer tank (2) is provided with a cooling pipe (7), the end of the cooling pipe (7) is provided with a compressor (3), the outlet of the compressor (3) is provided with a heat exchange pipe (12), the end of the heat exchange pipe (12) is provided with a pressure relief pipe (14), and the end of the pressure relief pipe (14) is connected to the cooling pipe (7); A heat exchange chamber (8), wherein a fan blade (16) is fixed on the inner wall of the heat exchange chamber (8), a temperature supply chamber (10) is fixed on the outer surface of the heat exchange chamber (8), and an exhaust port (17) is opened on the outer surface of the temperature supply chamber (10).

2. The cooling device for all-vanadium liquid flow energy storage according to claim 1, characterized in that: A temperature sensor (5) is fixed to the end of the electrolyte buffer tank (2), an air intake pipe (15) is fixed to one end of the cooling pipe (7), and the air intake pipe (15) is connected and fixed to the inlet of the compressor (3).

3. The cooling device for all-vanadium liquid flow energy storage according to claim 2, characterized in that: A pressure relief pipe (14) is fixed to the other end of the cooling pipe (7), and a liquid delivery pipe (13) is fixed to the end of the pressure relief pipe (14). The diameter of the pressure relief pipe (14) is much smaller than the diameters of the liquid delivery pipe (13) and the cooling pipe (7), and the end of the liquid delivery pipe (13) is fixed to the heat exchange pipe (12).

4. The cooling device for all-vanadium liquid flow energy storage according to claim 3, characterized in that: An air outlet pipe (11) is fixed at the outlet of the compressor (3), and a heat exchange pipe (12) is fixed at the end of the air outlet pipe (11). The heat exchange pipe (12) is arranged in a U-shaped array and is located inside the heat exchange chamber (8).

5. The cooling device for all-vanadium liquid flow energy storage according to claim 4, characterized in that: The heat exchange tube (12) is located inside the heat exchange chamber (8) above the fan blade (16), a heat transfer air pipe (9) is fixed on the surface of the heat exchange chamber (8), and a temperature supply chamber (10) is fixed at the end of the heat transfer air pipe (9).

6. The cooling device for all-vanadium liquid flow energy storage according to claim 5, characterized in that: The heat transfer air pipe (9) is connected to the interior of the heat exchange chamber (8), and the heat transfer air pipe (9) is located on the inner wall surface opposite to the fan blade (16). The temperature supply chamber (10) is an internal hollow structure.

7. The cooling device for all-vanadium liquid flow energy storage according to claim 6, characterized in that: The heat supply pipe (9) is connected to the interior of the heating chamber (10), the air inlet pipe (15) is inserted into the interior of the heating chamber (10), and an exhaust port (17) is provided on the outer surface of the heating chamber (10) opposite to the heat supply pipe (9), and the exhaust port (17) is connected to the interior of the heating chamber (10).

Images