New energy system

Abstract

A new energy system. The new energy system comprises an energy generating device, an energy storage device and an energy utilization device; wherein: the energy generating device comprises a first closed pipeline, the first closed pipeline circulates an energy preparation fluid; the energy storage device comprises a second closed pipeline, the second closed pipeline circulates an energy storage fluid; the energy utilization device comprises a third closed pipeline, the third closed pipeline circulates a heat dissipation fluid; at least one of the energy preparation fluid and the heat dissipation fluid exchanges heat with the energy storage fluid in the second closed pipeline. By using the above scheme, the heat utilization rate of the new energy system can be improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy technology, specifically to a new energy system. Background Technology

[0002] New energy refers to various forms of energy other than traditional energy, including renewable and clean energy such as solar, wind, hydro, bioenergy, geothermal, ocean energy, and hydrogen. Compared with traditional energy, it has advantages such as sustainability and environmental friendliness.

[0003] In practical applications, a new energy system can include: an energy generation device, an energy storage device, and an energy utilization device. The energy generation device can generate new energy, the energy storage device can store the generated new energy, and the energy utilization device can use the stored new energy to generate electricity.

[0004] However, the heat utilization rate of existing new energy systems is low. Utility Model Content

[0005] The problem this invention aims to solve is to improve the heat utilization rate of new energy systems.

[0006] To address the above problems, this utility model provides a new energy system, which includes: an energy generation device, an energy storage device, and an energy utilization device; wherein:

[0007] The energy generating device includes a first closed conduit through which a fluid for energy generation flows;

[0008] The energy storage device includes a second closed conduit through which a fluid for energy storage flows;

[0009] The energy utilization device includes a third closed pipe through which a heat dissipation fluid flows.

[0010] At least one of the energy generation fluid and the heat dissipation fluid exchanges heat through the energy storage fluid in the second closed pipeline.

[0011] In one possible embodiment, the energy generating device further includes: a first heat exchanger for heat exchange between the energy storage fluid and the energy generation fluid.

[0012] In one possible embodiment, the new energy system further includes: a first bypass pipeline and a first switch; the first bypass pipeline is connected to both ends of a second closed pipeline passing through the first heat exchanger; the first switch is disposed on the first bypass pipeline and is used to control whether the energy storage fluid flows through the first heat exchanger.

[0013] In one possible embodiment, the new energy system further includes: a second bypass pipeline and a second switch; the second bypass pipeline is connected to both ends of a second closed pipeline passing through the energy storage device; the second switch is disposed on the second bypass pipeline and is used to control whether the heat dissipation fluid heats the energy stored in the energy storage device.

[0014] In one possible embodiment, the energy utilization device further includes a second heat exchanger for heat exchange between the energy storage fluid and the heat dissipation fluid.

[0015] In one possible embodiment, the new energy system further includes: a third bypass pipeline and a third switch; the third bypass pipeline is connected to both ends of a second closed pipeline flowing through the second heat exchanger; the third switch is disposed on the third bypass pipeline and is used to control whether the energy storage fluid flows through the second heat exchanger.

[0016] In one possible embodiment, the new energy system further includes: a heat processor disposed on the second closed pipe and located between the first heat exchanger and the second heat exchanger, for heat treatment of the energy storage fluid flowing through the second heat exchanger.

[0017] In one possible embodiment, the thermal processor is a heat sink or a third heat exchanger.

[0018] In one possible embodiment, the new energy system further includes: a fourth bypass pipe and a fourth switch; wherein the fourth bypass pipe is connected to both ends of a second closed pipe flowing through the heat processor; the fourth switch is disposed on the fourth bypass pipe and is used to control whether the energy storage fluid flowing through the second heat exchanger flows through the heat processor.

[0019] In one possible embodiment, the new energy system further includes: a fifth bypass pipeline and a fifth switch; wherein the fifth bypass pipeline connects the input end of the first heat exchanger and the input end of the second heat exchanger; the fifth switch is used to control whether the energy storage fluid flowing through the heat processor is directly delivered to the second heat exchanger.

[0020] In one possible embodiment, the new energy system further includes: a heater, disposed on the second closed pipe and located at the inlet side of the energy storage device, for heating the fluid used for energy storage during the start-up phase of the energy generating device and when the energy storage device is not in operation.

[0021] Compared with the prior art, the technical solution of this utility model embodiment has the following advantages:

[0022] By applying this new energy system, since at least one of the energy-generating fluid and the heat-dissipating fluid exchanges heat with the energy-storing fluid within the second closed pipe, the heat generated by either the energy-generating or heat-dissipating fluid can be used to heat the energy-storing fluid without requiring an additional heat source, thereby improving heat utilization efficiency. Furthermore, during the startup phase of the energy-generating device, if the energy utilization device is operating, the heat-dissipating fluid can also be used to heat the energy-generating fluid, further enhancing heat utilization efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a hydrogen energy system.

[0024] Figure 2 This is a schematic diagram of the structure of a hydrogen energy system according to an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of another hydrogen energy system in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of another hydrogen energy system in this utility model embodiment;

[0027] Figure 5 This is a schematic diagram of another hydrogen energy system in an embodiment of this utility model. Detailed Implementation

[0028] In existing new energy systems, including existing hydrogen energy systems, the heat generated in energy production, energy storage, and energy utilization is controlled independently, with no heat exchange between them, resulting in low heat utilization efficiency.

[0029] The following explanation uses hydrogen as an example, combined with a specific hydrogen energy system:

[0030] Figure 1 This is a schematic diagram of an existing hydrogen energy system. (Refer to...) Figure 1 The hydrogen energy system may include: an electrolyzer 11, a hydrogen storage device 12, a fuel cell 13, a first radiator 14, an anode gas-water separator 15, a second radiator 16, and a power source 17.

[0031] The power source 17 provides operating power to the electrolyzer 11 and the hydrogen storage device 12. The electrolyzer 11 obtains electrolyzed water from an electrolyzer water tank (not shown), and then electrolyzes the water into hydrogen and oxygen. The hydrogen produced by the electrolyzer 11 is stored in the hydrogen storage device 12. The oxygen and unreacted electrolyzed water produced by the electrolyzer 11 are first cooled by the first radiator 14, and then separated by the anode gas-water separator 15. The separated oxygen can be stored in an oxygen tank, and the separated electrolyzed water can be transported back to the electrolyzer 11 for further electrolysis. The cooling liquid provided by the first radiator 14 absorbs the heat released during the operation of the electrolyzer 11 and releases it into the atmosphere.

[0032] When hydrogen is needed, fuel cell 13 can obtain hydrogen from hydrogen storage device 12. The obtained hydrogen reacts electrochemically with oxygen in the air within fuel cell 13, thereby converting chemical energy into electrical energy. During the process of obtaining electrical energy, fuel cell 13 releases heat, and the cooling liquid provided by the second radiator 16 can absorb the heat released by fuel cell 13 and release it into the atmosphere.

[0033] The inventors discovered through research that the heat characteristics of hydrogen production, storage, and utilization processes differ in the aforementioned hydrogen energy systems. Specifically:

[0034] 1) When electrolyzing water to produce hydrogen in electrolyzer 11, in order to maintain high hydrogen production efficiency, it is desirable to control the electrolyzed water at 60°C or above. Therefore, when electrolyzer 11 is started, the water tank of electrolyzer needs to be heated in order to raise the room temperature water to about 60°C as soon as possible to start hydrogen production.

[0035] 2) When hydrogen production enters normal operation, the electrolyzer 11 will generate a lot of heat due to the high current electrolysis, so it is necessary to release this heat in order to maintain the designed electrolysis temperature.

[0036] 3) When the electrolyzer 11 is shut down for a short period of time, it is best to provide a certain amount of heat to the electrolyzer 11 for insulation and to keep the electrolyzed water flowing, so that it can be quickly started when the power supply is available in the future, in order to adapt to the volatility of new energy power generation.

[0037] 4) The hydrogen stored in the hydrogen storage device 12 is mostly in solid or liquid form, and heating is required when it is released. Currently, electric heating is generally used, which consumes some precious electrical energy.

[0038] 5) When fuel cell 13 generates electricity using stored hydrogen, 50% of the energy of the hydrogen is converted into heat at around 80°C.

[0039] However, in existing hydrogen energy systems, the heat generated during hydrogen production, storage, and utilization is controlled independently, with no heat exchange between them, resulting in low heat utilization efficiency. For example, the heat generated during the normal operation of the electrolyzer 11 is mostly released into the atmosphere through the first radiator 14, and the heat generated during the energy conversion process of the fuel cell 13 is also mostly released into the atmosphere through the second radiator 16. The heat required for heating the water tank of the electrolyzer, the heat required during the shutdown of the electrolyzer 11, and the heat required for the hydrogen storage device 12 to release hydrogen need to be supplied additionally.

[0040] To address this problem, this invention provides a new energy system. This system utilizes the heat generated by the energy-generating fluid or the heat-dissipating fluid to heat the energy-storing fluid without requiring an additional heat source, thereby improving heat utilization efficiency. Furthermore, during the startup phase of the energy-generating device, if the energy utilization device is operating, the heat-dissipating fluid can also be used to heat the energy-generating fluid, further enhancing heat utilization efficiency.

[0041] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0042] This utility model embodiment provides a new energy system, which includes: an energy generation device, an energy storage device, and an energy utilization device; wherein:

[0043] The energy generating device includes a first closed conduit through which a fluid for energy generation flows;

[0044] The energy storage device includes a second closed conduit through which a fluid for energy storage flows;

[0045] The energy utilization device includes a third closed pipe through which a heat dissipation fluid flows.

[0046] At least one of the energy generation fluid and the heat dissipation fluid exchanges heat through the energy storage fluid in the second closed pipeline.

[0047] In this embodiment of the invention, the new energy source can be any new energy source suitable for storage, including but not limited to hydrogen. When obtaining energy from the energy storage device, the energy storage device can be appropriately heated using an energy storage fluid to meet the energy acquisition rate requirements. The energy storage fluid can be a gas or a liquid, and there is no limitation here. The energy storage fluid can circulate within the second closed pipeline.

[0048] A fluid for energy production flows within a first closed conduit to produce energy. This fluid can be a gas or a liquid; there is no limitation here. For example, when the new energy source is hydrogen, the fluid for energy production can be water.

[0049] A heat dissipation fluid flows within a third closed conduit to cool the energy utilization device. This energy production fluid can be a gas or a liquid; there are no restrictions here. For example, when the new energy source is hydrogen, the heat dissipation fluid can be water.

[0050] During the startup phase of the energy generation device, heat needs to be absorbed by the energy-generating fluid to meet the startup speed requirements. During the normal operation phase after startup, energy needs to be released by the energy-generating fluid.

[0051] During the startup phase of an energy utilization device, heat needs to be absorbed by a cooling fluid to bring the device to a suitable temperature and enable it to operate. During the normal operation phase after startup, energy needs to be released by an energy generation fluid.

[0052] Therefore, at least one of the energy generation fluid and the heat dissipation fluid exchanges heat through the energy storage fluid in the second closed pipe, including: 1) heat exchange between the energy generation fluid and the energy storage fluid in the second closed pipe; 2) heat exchange between the heat dissipation fluid and the energy storage fluid in the second closed pipe; 3) heat exchange between the energy generation fluid, the heat dissipation fluid, and the energy storage fluid in the second closed pipe; 4) heat exchange between the energy generation fluid and the heat dissipation fluid through the energy storage fluid. Compared to the independently controlled heat generation, energy storage, and energy utilization, the present invention can form a heat transfer path (i.e., a second closed pipe) between energy generation, energy storage, and energy utilization, connecting the heat of each stage and thus improving heat utilization efficiency.

[0053] Figure 2 This is a schematic diagram of a new energy system according to an embodiment of the present invention. (Refer to...) Figure 2 The system may include: an energy generating device 21, an energy storage device 22, and an energy utilization device 23; wherein:

[0054] The first closed pipe L1 inside the energy generating device 21 contains a fluid for energy preparation.

[0055] The energy storage device 22 contains a second closed pipe L2 through which a fluid for energy storage flows.

[0056] The third closed pipe L3 inside the energy utilization device 23 contains a heat dissipation fluid;

[0057] At least one of the energy generation fluid and the heat dissipation fluid exchanges heat through the energy storage fluid in the second closed pipeline.

[0058] Taking hydrogen as an example of the new energy source, in a specific implementation, the energy generating device 21 may further include: an electrolytic cell 212 and an anode gas-water separator 213. The electrolytic cell 212, the first heat exchanger 211 and the anode gas-water separator 213 are connected through the first closed pipeline L1.

[0059] Specifically, the hydrogen-producing water in the first closed pipeline L1 enters the electrolyzer 212, where it is electrolyzed into hydrogen and oxygen. The hydrogen flows from the cathode of the electrolyzer 212 into the hydrogen storage device 22 for storage. The oxygen and unreacted hydrogen-producing water flow from the anode of the electrolyzer 212, reach a suitable temperature through the first heat exchanger 211, and are then transported to the anode gas-water separator 213, where the oxygen and unreacted hydrogen-producing water are separated. The oxygen separated by the anode gas-water separator 213 can be stored in an oxygen tank, while the unreacted hydrogen-producing water returns to the electrolyzer 212 for further electrolysis.

[0060] Accordingly, the energy utilization device 23 may further include: a fuel cell 232; the fuel cell 232 and the second heat exchanger 231 are connected through a second closed pipe L2.

[0061] Specifically, fuel cell 232 can obtain hydrogen from hydrogen storage device 22. The obtained hydrogen reacts with oxygen in the air within fuel cell 232 through an electrochemical reaction, thereby converting chemical energy into electrical energy. The electrical energy generated by fuel cell 232 can be supplied to electrical devices after AC-DC conversion via an inverter. During the process of obtaining electrical energy, fuel cell 232 releases heat. Cooling water is typically installed in the third closed pipe L3 flowing through the second heat exchanger 231, which can absorb the heat released by fuel cell 232.

[0062] The energy storage device 22 can be implemented using a corresponding hydrogen storage structure. This hydrogen storage structure can release the stored hydrogen. The second closed pipeline L2 can flow through this hydrogen storage structure, thereby providing heat to the hydrogen storage structure so that the hydrogen release rate of the hydrogen storage structure meets the requirements.

[0063] In one embodiment of the present invention, the energy generating device 21 further includes: a first heat exchanger 211; the first heat exchanger 211 is used for heat exchange between the energy storage fluid and the energy generating fluid.

[0064] Specifically, refer to Figure 2The first closed pipe L1 and the second closed pipe L2 pass through the first heat exchanger 211, thereby using the heat released by the energy production fluid to heat the energy storage fluid, so that the required energy supply rate can be achieved without using an additional heating device to heat the energy storage fluid.

[0065] In one embodiment of the present invention, the new energy system may further include: a first bypass pipe L21 and a first switch V1; the first bypass pipe L21 is connected to both ends of a second closed pipe L2 passing through the first heat exchanger 211; the first switch V1 is disposed on the first bypass pipe L21 and is used to control whether the energy storage fluid flows through the first heat exchanger 211.

[0066] Specifically, when the first switch V1 is fully open, the energy storage fluid in the second closed pipe L2 flows through the first bypass pipe L21 but not through the first heat exchanger 211. At this time, the energy generation fluid flowing through the first heat exchanger 211 does not exchange heat with the energy storage fluid. When the first switch V1 is fully closed, the energy storage fluid in the second closed pipe L2 flows through the first heat exchanger 211 but not through the first bypass pipe L21. At this time, the energy generation fluid flowing through the first heat exchanger 211 is used for heat exchange.

[0067] By setting the first bypass pipe L21 and the first switch V1, the energy production fluid flowing through the first heat exchanger 211 can be flexibly controlled for heat exchange based on the specific energy production process. This not only meets the heat demand of the energy production stage but also improves the heat utilization efficiency.

[0068] In one embodiment of the present invention, the hydrogen energy system may further include: a second bypass pipe L22 and a second switch V2; the second bypass pipe L22 is connected to both ends of a second closed pipe L2 passing through the energy storage device 22; the second switch V2 is disposed on the second bypass pipe L22 and is used to control whether the heat dissipation fluid heats the energy stored in the energy storage device 22.

[0069] Specifically, when the second switch V2 is fully open, the energy storage fluid in the second closed pipe L2 flows through the second bypass water passage L22 but not through the energy storage device 22. At this time, the energy storage fluid in the second closed pipe L2 does not heat the energy in the energy storage device 22. When the second switch V2 is fully closed, the energy storage fluid in the second closed pipe L2 flows through the energy storage device 22 but not through the second bypass water passage L22. At this time, the energy storage fluid in the second bypass water passage L22 heats the energy in the energy storage device 22.

[0070] Through the second bypass pipe L22 and the second switch V2, the heating of the energy in the energy storage device 22 can be flexibly controlled based on the energy acquisition needs, thereby not only meeting the energy supply needs, but also improving the heat utilization efficiency.

[0071] In another embodiment of the present invention, the energy utilization device 23 further includes: a second heat exchanger 231; the second heat exchanger 231 is used for heat exchange between the energy storage fluid and the heat dissipation fluid.

[0072] Specifically, the energy storage fluid in the second closed pipe L2 can flow only through the second heat exchanger 231, thereby utilizing the heat released by the energy utilization device 23 to heat the energy storage fluid, achieving the required energy supply rate without the need for an additional heating device. The energy storage fluid in the second water loop L2 can also flow simultaneously through the first heat exchanger 211 and the second heat exchanger 231, thereby utilizing the heat released by the energy utilization device 23 to heat the energy storage fluid or the energy generation fluid, or utilizing the heat released by the energy utilization device 23 and the energy generation device to heat the energy storage fluid. Therefore, compared to existing new energy systems, the solution of this invention can effectively improve heat utilization efficiency.

[0073] Furthermore, compared to existing new energy systems, the new energy system in this invention uses a first heat exchanger 211 to process the heat generated during the operation of the energy generating device 21, and a second heat exchanger 231 to process the heat generated during the operation of the energy utilizing device 23, instead of using radiators to process the heat generated during the operation of the energy generating device 21 and the energy utilizing device 23. This is equivalent to replacing two radiators with two heat exchangers, which can greatly reduce the volume occupied by the entire new energy system. Moreover, since the heat transfer coefficient of the heat exchangers is larger, the two heat exchangers can be used to exchange heat with the energy storage fluid in the second closed pipe L2, thereby improving energy utilization and enhancing the temperature regulation performance of the new energy system.

[0074] In another embodiment of the present invention, the hydrogen energy system may further include: a third bypass pipe L23 and a third switch V3; the third bypass pipe L23 is connected to both ends of the second closed pipe L2 flowing through the second heat exchanger 231; the third switch V3 is disposed on the third bypass pipe L23 and is used to control whether the energy storage fluid flows through the second heat exchanger 231.

[0075] Specifically, when the third switch V3 is fully open, the energy storage fluid in the second closed pipe L2 flows through the third bypass pipe L23 but not through the second heat exchanger 231. At this time, the heat dissipation fluid flowing through the second heat exchanger 231 does not exchange heat with the energy storage fluid. When the third switch V3 is fully closed, the energy storage fluid in the second closed pipe L2 flows through the second heat exchanger 231 but not through the third bypass pipe L23. At this time, the heat dissipation fluid flowing through the third bypass pipe L23 exchanges heat with the energy storage fluid.

[0076] By setting up a third bypass pipe L23 and a third switch V3, the heat dissipation fluid flowing through the second heat exchanger 231 can be flexibly controlled for heat exchange based on the specific energy utilization process. This not only meets the heat dissipation requirements of the energy utilization stage but also improves the heat utilization efficiency.

[0077] In some embodiments, the hydrogen energy system may include any two or all of the following bypass pipelines: a first bypass pipeline L21, a second bypass pipeline L22, and a third bypass pipeline L23, as well as switches on the bypass pipelines. This allows for flexible adjustment of the liquid capable of heat exchange within the second closed pipeline L2 based on the specific processes of energy production, energy storage, and energy utilization, thereby meeting the heat demand or heat dissipation demand at each stage while improving heat utilization efficiency.

[0078] Specifically, taking hydrogen as an example of a new energy source, in the initial stage of starting up the electrolyzer 212, in order to increase the operating temperature of the electrolyzer 212, if the fuel cell 232 is working, the first switch V1 and the third switch V3 can be completely closed, and the second switch V2 can be completely opened. At this time, the energy storage fluid in the second closed pipe L2 flows through the first heat exchanger 211 and the second heat exchanger 231. The heat dissipation fluid flowing through the fuel cell 232 heats the energy storage fluid in the second closed pipe L2. The heated energy storage fluid can then flow through the first heat exchanger 211, thereby heating the energy production fluid in the first closed pipe L1. After absorbing some heat, the energy production fluid flowing through the first heat exchanger 211 also flows through the energy storage device 22, thereby heating the energy storage device 22 and increasing the energy supply rate of the energy storage device 22.

[0079] When the electrolyzer 212 is operating normally but the fuel cell 232 is in the start-up phase, the electrolysis process releases heat. At this time, the first switch V1, the second switch V2, and the third switch V3 can be completely closed. The energy storage fluid in the second closed pipe L2 flows through the first heat exchanger 211, and the heat absorbed by the energy production fluid heats the energy storage fluid in the second closed pipe L2. The heated energy storage fluid heats the energy storage device 22, thereby increasing the energy supply rate of the energy storage device 22. The heated energy storage fluid then flows through the second heat exchanger 231, and the heated energy storage fluid heats the heat dissipation fluid in the third closed pipe L3, thereby allowing the fuel cell 232 to start operating at a more comfortable temperature.

[0080] When the fuel cell 232 is operating normally, the second switch V2 and the third switch V3 can be completely closed. The cooling fluid flowing through the second heat exchanger 231 is used to heat the energy storage fluid in the second closed pipe, ensuring the energy storage device 22 is at a suitable temperature and thus supplying energy at the required rate. At this time, the first switch V1 can be completely closed, allowing the energy storage fluid in the second closed pipe L2 to heat or cool the energy production fluid flowing through the first heat exchanger 211. During the shutdown of the electrolyzer 212, the energy storage fluid in the second closed pipe L2 can also be used to keep the energy production fluid warm, allowing it to continue flowing. This enables rapid startup when power is available in the future, adapting to the fluctuations in new energy power generation.

[0081] In practical implementation, the opening degrees of the first switch V1, the second switch V2, and the third switch V3 are adjustable. By adjusting the opening degree of each switch, the flow rate of the energy storage fluid flowing through each bypass pipe can be adjusted, allowing some of the energy storage fluid to also flow through the connected devices. For example, when the second switch V2 is partially open, some of the energy storage fluid in the second closed pipe L2 can flow through the second bypass pipe L22, while the remaining portion flows through the energy storage device 22 to heat it. When the first switch V1 is partially open, some of the energy storage fluid in the second closed pipe L2 can flow through the first bypass pipe L21, while the remaining portion flows through the energy storage device 22 to exchange heat with the energy generation fluid. This allows for flexible adjustment of the transferred heat based on heat demand, meeting a wider range of application requirements.

[0082] In practical applications, during the startup phase of the energy generating device 21, the energy utilization device 23 may not have started working, and at this time, there is no heat supply to the second closed pipeline L2.

[0083] In order to enable the energy generating device 21 to start up as quickly as possible, in one embodiment of this utility model, referring to Figure 2 The hydrogen energy system may further include a heater 24. The heater 24 may be installed on the second closed pipeline L2 and located on the inlet side of the energy storage device 22, for heating the fluid used for energy storage when the energy generating device 21 is in operation and the energy utilization device 23 is not in operation.

[0084] Specifically, the heater 24 can be an electric heater. The heater 24, the electrolyzer 212, and the hydrogen storage device 22 can be powered by the same power source 25. The energy storage device 22 itself may not have a heating function and may rely entirely on the heat source on the second closed pipeline L2 for heating.

[0085] In some embodiments, refer to Figure 2 The hydrogen energy system may further include a power source 25. In high-altitude areas with abundant sunshine and wind resources, green electricity can be generated using photovoltaic and wind turbines. Green electricity refers to electricity with zero or near-zero carbon dioxide emissions during its production. Green electricity serves as the power source 25.

[0086] In specific implementation, refer to Figure 2 The hydrogen energy system may further include a water pump 26. The water pump 26 may be installed on the second closed pipeline L2 and located between the second heat exchanger 231 and the first heat exchanger 211, thereby pumping the energy storage fluid flowing through the second heat exchanger 231 into the first heat exchanger 211.

[0087] In practical applications, the heat released during the power generation process of fuel cell 232 is usually greater than the heat required by the energy production fluid and the heat of the energy storage fluid. Therefore, in some embodiments, the new energy system may further include: a heat processor, disposed on the second closed pipeline L2 and located between the first heat exchanger 211 and the second heat exchanger 231, for heat treatment of the energy storage fluid flowing through the second heat exchanger 231.

[0088] By setting up a heat processor, the heat released during the power generation process of the fuel cell 232 can be balanced with the heat required by the energy storage fluid, the heat released by the energy production fluid, and the heat processed by the heat processor, thereby enabling a continuous cycle of heat supply.

[0089] In one embodiment, reference is made to Figure 3 The heat processor can be a heat sink 271. The heat sink 271 can dissipate heat from the energy storage fluid passing through the second heat exchanger 231, thereby reducing the temperature of the energy storage fluid flowing through the first heat exchanger 211, and thus reducing the heat supplied to the energy storage device 22.

[0090] In another embodiment, reference Figure 4 The heat processor can also be a third exchanger 272. The third exchanger 272 can exchange heat between the energy storage fluid passing through the second heat exchanger 231 and other fluids, thereby reducing the temperature of the energy storage fluid flowing through the first heat exchanger 211. This reduces the heat supplied to the energy storage device 22 and further improves heat utilization. The other fluids here can be building water or other water requiring heating.

[0091] Regardless of the device used to implement the thermal processor, in one embodiment, refer to Figure 3 and Figure 4 The new energy system may further include a fourth bypass pipe L24 and a fourth switch V4. The fourth bypass pipe L24 is connected to both ends of the second closed pipe L2 that flows through the heat processor; the fourth switch V4 is disposed on the fourth bypass pipe L24 and is used to control whether the energy storage fluid flowing through the second heat exchanger 231 flows through the heat processor.

[0092] Specifically, taking the heat processor as the third exchanger 272 as an example, refer to... Figure 4 When the fourth switch V4 is fully open, the energy storage fluid flowing through the second heat exchanger 231 bypasses the third heat exchanger 272 for heat exchange and flows directly through the fourth bypass pipe L24 and the water pump 26 to the first heat exchanger 211. When the fourth switch V4 is fully closed, the energy storage fluid flowing through the second heat exchanger 231 undergoes heat exchange through the third heat exchanger 272 and then flows through the water pump 26 to the first heat exchanger 211.

[0093] In specific implementation, the opening degree of the fourth switch V4 is also adjustable. By adjusting the opening degree of the fourth switch V4, part of the energy storage fluid flowing through the second heat exchanger 231 can flow out through the fourth bypass pipe L24, while the remaining part of the energy storage fluid is cooled through the third exchanger 272.

[0094] By setting the fourth bypass pipe L24 and the fourth switch V4, the operation of the heat processor can be flexibly controlled based on the amount of heat released by the energy utilization device 23, thereby facilitating the maintenance of the thermal balance of the second closed pipe L2 and enabling the continuous circulation and supply of heat.

[0095] In practical applications, since the energy utilization device 23 releases a significant amount of heat during operation, the energy storage fluid flowing through the second heat exchanger 231 needs to have a low temperature to remove more heat. However, currently, the temperature of the hydrogen release water flowing through the second heat exchanger 231 is often insufficient. This results in the heat released during the operation of the energy utilization device 23 not being removed as much as possible, leading to excessively high temperatures of the heat dissipation fluid in the third closed pipeline L3, which affects the operation of the energy utilization device 23.

[0096] Therefore, in one embodiment, reference is made to Figure 5 The present invention may further include: a fifth bypass pipe L25 and a fifth switch V5; wherein, the fifth bypass pipe L25 is connected to the input end of the first heat exchanger 211 and the input end of the second heat exchanger 231; the fifth switch V5 is used to control whether the energy storage fluid flowing through the heat processor is directly delivered to the second heat exchanger 231.

[0097] Specifically, taking the heat processor as the third exchanger 272 as an example, refer to... Figure 4 When the fifth switch V5 is fully open, the energy storage fluid flowing through the water pump 26 can bypass the first heat exchanger 211 and directly enter the second heat exchanger 231 via the fifth bypass pipe L25. When the fifth switch V5 is fully closed, the energy storage fluid flowing through the water pump 26 undergoes heat exchange via the first heat exchanger 211.

[0098] In specific implementation, the opening degree of the fifth switch V5 is also adjustable. By adjusting the opening degree of the fifth switch V5, part of the energy storage fluid flowing through the water pump 26 can flow out through the fifth bypass pipe L25, while the remaining part of the energy storage fluid is cooled through the first heat exchanger 211.

[0099] By setting the fifth bypass pipe L25 and the fifth switch V5, the temperature of the heat dissipation fluid input to the second heat exchanger 231 can be flexibly controlled based on the heat required by the energy utilization device 23, thereby facilitating more sufficient heat dissipation of the energy utilization device 23 and maintaining the stable performance of the energy utilization device 23.

[0100] In some embodiments, the hydrogen energy system may further include a controller, and corresponding temperature sensors may be respectively installed on the first closed pipeline L1, the second closed pipeline L2, and the third closed pipeline L3. The controller can be connected to each temperature sensor and can control the first switch V1 to the fifth switch V5 to open or close based on the liquid temperature in each closed pipeline, thereby enabling the energy storage fluid to be transported through the bypass pipeline when heat exchange is not required.

[0101] By employing the scheme of this utility model, the first heat exchanger 211 of the energy generating device 21, the energy storage device 22, and the second heat exchanger 231 of the energy utilization device 23 are connected through a second closed pipeline. This allows the energy generating device 21, the energy storage device 22, and the energy utilization device 23 to complement each other's waste heat, thereby reducing heat loss and improving system energy efficiency. Furthermore, when one of the energy generating device 21 or the energy utilization device 23 is operating while the other is not, the waste heat can be used to maintain either the energy generating device 21 or the energy utilization device 23 at a relatively high operating temperature, facilitating startup and better addressing the fluctuations in new energy sources.

[0102] Although the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A new energy system, characterized in that, include: Energy generation devices, energy storage devices, and energy utilization devices; among which: The energy generating device includes a first closed conduit through which a fluid for energy generation flows; The energy storage device includes a second closed conduit through which a fluid for energy storage flows; The energy utilization device includes a third closed pipe through which a heat dissipation fluid flows. At least one of the energy generation fluid and the heat dissipation fluid exchanges heat through the energy storage fluid in the second closed pipeline.

2. The new energy system of claim 1, wherein, The energy generating device further includes: a first heat exchanger for heat exchange between the energy storage fluid and the energy generation fluid.

3. The new energy system of claim 2, wherein, Also includes: A first bypass pipeline and a first switch; the first bypass pipeline is connected to both ends of a second closed pipeline passing through the first heat exchanger; the first switch is disposed on the first bypass pipeline and is used to control whether the energy storage fluid flows through the first heat exchanger.

4. The new energy system of claim 2, wherein, Also includes: A second bypass pipe and a second switch; the second bypass pipe is connected to both ends of a second closed pipe passing through the energy storage device; the second switch is disposed on the second bypass pipe and is used to control whether the heat dissipation fluid heats the energy stored in the energy storage device.

5. The new energy system according to any one of claims 2 to 4, wherein, The energy utilization device further includes a second heat exchanger for heat exchange between the energy storage fluid and the heat dissipation fluid.

6. The new energy system of claim 5, wherein, Also includes: A third bypass pipe and a third switch; the third bypass pipe is connected to both ends of a second closed pipe flowing through the second heat exchanger; The third switch is installed on the third bypass pipeline and is used to control whether the energy storage fluid flows through the second heat exchanger.

7. The new energy system of claim 5, wherein, Also includes: A heat processor, disposed on the second closed pipe and located between the first heat exchanger and the second heat exchanger, is used to heat-treat the energy storage fluid flowing through the second heat exchanger.

8. The new energy system of claim 7, wherein, The heat processor is a heat sink or a third heat exchanger.

9. The new energy system of claim 7, wherein, Also includes: A fourth bypass pipe and a fourth switch; wherein the fourth bypass pipe is connected to both ends of a second closed pipe flowing through the heat processor; the fourth switch is disposed on the fourth bypass pipe and is used to control whether the energy storage fluid flowing through the second heat exchanger flows through the heat processor.

10. The new energy system of claim 7, wherein, Also includes: A fifth bypass pipe and a fifth switch; wherein the fifth bypass pipe connects the input end of the first heat exchanger and the input end of the second heat exchanger; the fifth switch is used to control whether the energy storage fluid flowing through the heat processor is directly delivered to the second heat exchanger.

11. The new energy system of claim 1, wherein, Also includes: A heater is installed on the second closed pipe and located at the water inlet side of the energy storage device, for heating the fluid used for energy storage during the start-up phase of the energy generating device and when the energy storage device is not in operation.

Images