Adiabatic compressed air energy storage combined cooling heating and power system coupled with organic Rankine cycle

Abstract

The invention discloses an adiabatic compressed air energy storage combined cooling heating and power system coupled with organic Rankine cycle, which comprises a plurality of compression devices, an air storage chamber, a first turbine and a heat storage loop, the plurality of compression devices are connected with one another and are respectively connected with a power generation source, and each compression device is provided with an energy storage gas outlet; the gas storage chamber is communicated with the energy storage gas outlet; the multiple first turbines are connected with one another, each first turbine is provided with an energy storage gas inlet, and the energy storage gas inlets communicate with the gas storage chamber; the heat storage loop is used for absorbing and storing heat from the energy storage gas in the process that the compression device compresses the energy storage gas and releasing heat to heat the energy storage gas in the power generation process of the first turbine. According to the adiabatic compressed air energy storage combined cooling heating and power system coupled with the organic Rankine cycle, by arranging the heat storage loop, heat recovery and reutilization are achieved, the system efficiency and the energy utilization rate are improved, and system operation can be stabilized easily.

Description

Technical Field

[0001] The present invention relates to the field of energy technology, and in particular to an adiabatic compressed air energy storage combined cooling, heating and power system coupled with an organic Rankine cycle. Background Art

[0002] The core of adiabatic compressed air energy storage technology is to store energy through energy storage gas and release energy when needed to drive the turbine unit to generate electricity. It has the characteristics of high energy density and long-term storage, and can realize efficient conversion and utilization of energy in the process of energy storage and release.

[0003] In the compression stage, the gas is compressed to a high pressure state, and a large amount of compression heat is generated. In the energy release stage, the high-pressure gas expands and does work, driving the turbine unit to generate electricity.

[0004] In the related technologies, energy storage power generation systems have serious emissions, low energy utilization efficiency, and often rely on external heat sources, which increases system operating costs and causes environmental pollution. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle. According to the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle of the present invention, by setting up a heat storage circuit, heat recovery and reuse are achieved, the system efficiency and energy utilization rate are improved, and it is helpful to stabilize the operation of the system.

[0006] According to the present invention, an adiabatic compressed air energy storage combined heat and power supply system coupled with an organic Rankine cycle includes: a compression device, wherein the compression device is constructed as a plurality of connected devices, the plurality of compression devices are respectively connected to a power generation source, and each of the compression devices is provided with an energy storage gas outlet; an air storage chamber, the air storage chamber is connected to the energy storage gas outlet; a first turbine, wherein the first turbine is constructed as a plurality of connected devices, each of the first turbine is provided with an energy storage gas inlet, and the energy storage gas inlet is connected to the air storage chamber; a heat storage circuit, wherein a first heat storage medium circulating in the heat storage circuit is provided, the first heat storage medium is suitable for heat exchange with the energy storage gas, and the heat storage circuit is used to absorb and store heat from the energy storage gas during the process of compressing the energy storage gas by the compression device, and to release heat to heat the energy storage gas during the power generation process of the first turbine.

[0007] According to the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle of the present invention, when the energy storage gas is compressed by the compression device, heat is generated due to the collision and friction between gas molecules, resulting in an increase in the temperature of the energy storage gas. Since the first heat storage medium can exchange heat with the energy storage gas, that is, during the compression process, the first heat storage medium absorbs the heat released by the energy storage gas, thereby reducing the temperature of the energy storage gas, while its own temperature increases to store heat. During the power generation process of the first turbine, when the high-pressure energy storage gas expands and works, its temperature will drop. In order to improve the power generation efficiency and maintain the stable operation of the system, the first heat storage medium in the heat storage loop will release the previously stored heat to heat the energy storage gas, thereby increasing the temperature of the gas, so that it can expand and work more efficiently in the turbine to generate more electricity. By setting up a heat storage loop, the heat storage loop not only recovers the heat generated during the compression process, but also improves the overall efficiency and energy utilization of the system through the reuse of heat. In addition, the heat storage loop can also help stabilize the operation of the system, and maintain the appropriate temperature of the energy storage gas in the first turbine by adjusting the release of heat, thereby optimizing the power generation performance.

[0008] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle also includes: a solar energy circuit, a second heat storage medium circulating in the solar energy circuit, the second heat storage medium is suitable for exchanging heat with the energy storage gas, a solar collector is provided on the solar energy circuit, the solar collector is suitable for collecting solar energy and converting it into thermal energy, and the solar energy circuit is used to release heat to heat the energy storage gas during the power generation process of the first turbine.

[0009] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle also includes: a low-temperature interstage reheater, wherein the low-temperature interstage reheater is constructed in plurality, each of the low-temperature interstage reheaters is arranged between two adjacent first turbines or between the first turbine and the air storage chamber, and the low-temperature interstage reheater is provided with a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is connected to the solar energy circuit, and the second heat exchange channel is connected to the energy storage gas inlet; a high-temperature interstage reheater, wherein the high-temperature interstage reheater is constructed in plurality, each of the low-temperature interstage reheaters is arranged downstream of the low-temperature interstage reheater and between the first turbine, and the high-temperature interstage reheater is provided with a third heat exchange channel and a fourth heat exchange channel, the third heat exchange channel is connected to the heat storage circuit, and the fourth heat exchange channel is connected to the second heat exchange channel.

[0010] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle also includes: a first heat exchanger, the first heat exchanger is arranged between the compression device and the air storage chamber, the first heat exchanger is provided with a first heat exchange channel and a second heat exchange channel, the first heat exchange channel is connected to the energy storage gas outlet, and the second heat exchange channel is suitable for passing a heat exchange medium to utilize the waste heat of the energy storage gas to heat the heat exchange medium.

[0011] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle also includes: a second heat exchanger, the second heat exchanger is arranged on the heat storage circuit, the second heat exchanger is provided with a third heat exchange channel and a fourth heat exchange channel, the third heat exchange channel is connected to the heat storage circuit, and the fourth heat exchange channel is suitable for passing a heat exchange medium to heat the heat exchange medium by utilizing the waste heat of the first heat storage medium after the first heat storage medium exchanges heat with the energy storage gas.

[0012] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle also includes: a waste heat utilization circuit, which is connected to the heat storage circuit; an evaporator, which is arranged on the waste heat utilization circuit; a second turbine, which is connected to the evaporator; a condenser, which is arranged downstream of the second turbine; and a working fluid pump, which is arranged between the condenser and the evaporator.

[0013] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle further includes: an absorption refrigerator, which is disposed in the waste heat utilization loop and connected downstream of the evaporator.

[0014] According to some embodiments of the present invention, the second heat exchanger is arranged on the waste heat utilization circuit and is located downstream of the absorption refrigerator, and the third heat exchange channel is connected to the waste heat utilization circuit to utilize the waste heat discharged from the absorption refrigerator to heat the heat exchange medium.

[0015] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle also includes: an interstage cooler, wherein the interstage cooler is constructed in plurality, each of the interstage coolers is arranged between two adjacent compression devices or between the compression device and the air storage chamber, and the interstage cooler is provided with a fifth heat exchange channel and a sixth heat exchange channel, the fifth heat exchange channel is connected to the heat storage circuit, and the sixth heat exchange channel is connected to the energy storage gas outlet.

[0016] According to some embodiments of the present invention, the power generation source is configured as a new energy power station, and the new energy power station includes at least one of a wind power generation device, a solar power generation device, a hydropower generation device, and a biomass power generation device.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a layout diagram of an adiabatic compressed air energy storage combined heat and power system coupled with an organic Rankine cycle according to some embodiments of the present invention.

[0020] Reference numerals:

[0021] 1. Adiabatic compressed air energy storage combined heating and cooling power system coupled with organic Rankine cycle;

[0022] 11. compression device, 12. power generation source, 13. air storage chamber, 14. first turbine;

[0023] 15. heat storage circuit, 151. high temperature heat storage tank, 152. low temperature heat storage tank;

[0024] 16. Solar circuit, 161. Solar collector, 162. Hot thermal storage tank, 163. Cold thermal storage tank;

[0025] 17. low temperature interstage reheater, 18. high temperature interstage reheater, 19. first heat exchanger, 20. second heat exchanger;

[0026] 21. waste heat utilization circuit, 211. evaporator, 212. second turbine, 213. condenser, 214. working fluid pump, 215. absorption refrigerator;

[0027] 22. Interstage cooler. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the related technologies, the adiabatic compressed air energy storage combined heat and power system coupled with the organic Rankine cycle has serious emissions, low energy utilization efficiency, and often relies on external heat sources, which increases the system operating costs and causes environmental pollution.

[0032] Reference below Figure 1 An adiabatic compressed air energy storage combined heating and cooling system 1 coupled with an organic Rankine cycle according to an embodiment of the present invention is described.

[0033] like Figure 1As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle according to the present invention includes a compression device 11, which is used to compress the energy storage gas to a high-pressure state, thereby storing energy. By constructing the compression device 11 as a plurality of compression devices connected to each other, the step-by-step compression of the energy storage gas is achieved. The plurality of compression devices 11 are respectively connected to a power generation source 12, and the compression device 11 converts the power of the power generation source 12 into high-pressure potential energy of the energy storage gas through the power drive compression process of the power generation source 12, thereby realizing the storage of electric energy. Each compression device 11 is provided with an energy storage gas outlet, and the energy storage gas outlet is used to discharge the compressed energy storage gas. The energy storage gas compressed by the compression device 11 is then directed to the next connected compression device 11 for further compression processing. After the pressure is gradually increased through a series of compression devices 11, the highly compressed energy storage gas finally enters the gas storage chamber 13 for storage.

[0034] The adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a gas storage chamber 13, which is used to store high-pressure energy storage gas. The gas storage chamber 13 is connected to the energy storage gas outlet, so the energy storage gas compressed step by step by a series of compression devices 11 will be transported to the gas storage chamber 13 through the energy storage gas outlet for storage.

[0035] The adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a first turbine 14, which is used to convert the pressure energy of the high-pressure energy storage gas into mechanical energy and then into electrical energy. By constructing the first turbine 14 as a plurality of first turbines connected to each other, the energy of the energy storage gas is released step by step. Each first turbine 14 is provided with an energy storage gas inlet, which is connected to the gas storage chamber 13, so that the high-pressure energy storage gas stored in the gas storage chamber 13 can enter the first turbine 14 through the energy storage gas inlet. When the high-pressure energy storage gas enters the first turbine 14, the pressure energy of the gas is converted into the mechanical energy of the turbine. The plurality of first turbines 14 are connected in sequence, and after the high-pressure energy storage gas partially expands and releases energy in the first turbine 14, the pressure is reduced, and then enters the next connected first turbine 14 for further energy release. Through the step-by-step expansion of a series of first turbines 14, the energy of the high-pressure energy storage gas is fully utilized and converted into mechanical energy to the maximum extent.

[0036] The adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a heat storage circuit 15, in which a first heat storage medium is circulated, and the first heat storage medium is suitable for exchanging heat with the energy storage gas. The heat storage circuit 15 is used to absorb and store heat from the energy storage gas during the process of compressing the energy storage gas by the compression device 11, and to release heat to heat the energy storage gas during the power generation process of the first turbine 14.

[0037] When the energy storage gas is compressed by the compression device 11, heat is generated due to the collision and friction between gas molecules, causing the temperature of the energy storage gas to rise. Since the first heat storage medium can exchange heat with the energy storage gas, that is, during the compression process, the first heat storage medium absorbs the heat released by the energy storage gas, thereby reducing the temperature of the energy storage gas, while its own temperature rises to store heat.

[0038] During the power generation process of the first turbine 14, when the high-pressure energy storage gas expands and performs work, its temperature will drop. In order to improve the power generation efficiency and maintain the stable operation of the system, the first heat storage medium in the heat storage loop 15 will release the previously stored heat to heat the energy storage gas, thereby increasing the temperature of the gas, so that it can expand and perform work more effectively in the turbine and generate more electricity.

[0039] By providing the heat storage loop 15, the heat storage loop 15 not only recovers the heat generated during the compression process, but also improves the overall efficiency and energy utilization of the system through the reuse of heat. In addition, the heat storage loop 15 can also help stabilize the operation of the system by regulating the release of heat to maintain the appropriate temperature of the energy storage gas in the first turbine 14, thereby optimizing the power generation performance.

[0040] Therefore, according to the adiabatic compressed air energy storage combined heat and power system 1 coupled with the organic Rankine cycle of the present invention, by setting up the heat storage loop 15, heat recovery and reuse are achieved, the system efficiency and energy utilization rate are improved, and it is helpful to stabilize the operation of the system.

[0041] According to some embodiments of the present invention, Figure 1 As shown, the heat storage circuit 15 is provided with a high-temperature heat storage tank 151 and a low-temperature heat storage tank 152 suitable for storing the first heat storage medium. The high-temperature heat storage tank 151 and the low-temperature heat storage tank 152 are respectively used to store the first heat storage medium in different temperature states. The high-temperature heat storage tank 151 is used to store the first heat storage medium that absorbs a large amount of heat from the high-temperature energy storage gas during the compression device 11 compressing the energy storage gas. Since the temperature of the first heat storage medium increases after absorbing heat, the first heat storage medium is stored in the high-temperature heat storage tank 151 so that when heat needs to be supplemented to increase the temperature of the energy storage gas during the power generation process of the first turbine 14, a high-temperature heat source can be quickly provided. In contrast to the high-temperature heat storage tank 151, the low-temperature heat storage tank 152 is used to store the first heat storage medium that releases heat and cools down during the power generation process of the first turbine 14. After heating the energy storage gas, the temperature of the first heat storage medium decreases, so it is stored in the low-temperature heat storage tank 152. When the compression device 11 compresses the energy storage gas again and the first heat storage medium is needed to absorb heat, the first heat storage medium in the low-temperature heat storage tank 152 can be reintroduced into the heat storage loop 15 to more effectively absorb and store heat.

[0042] By providing a high-temperature heat storage tank 151 and a low-temperature heat storage tank 152, the first heat storage medium in the heat storage loop 15 can be flexibly stored and called under different temperature conditions, thereby realizing efficient recovery, storage and reuse of heat, which not only improves the overall efficiency and energy utilization rate of the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle, but also enhances the flexibility and stability of the system.

[0043] According to some embodiments of the present invention, the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a throttle valve, which includes a first throttle valve and a second throttle valve. The first throttle valve is arranged upstream of the air storage chamber 13, and the second throttle valve is arranged downstream of the air storage chamber 13.

[0044] The first throttle valve is arranged at the upstream position of the gas storage chamber 13, that is, the first throttle valve is located on the path of the energy storage gas flowing from the compression device 11 to the gas storage chamber 13. The first throttle valve is used to adjust and control the flow rate and pressure of the energy storage gas entering the gas storage chamber 13. By adjusting the opening of the first throttle valve, the amount of gas entering the gas storage chamber 13 and the pressure level of the gas can be controlled, thereby ensuring that the gas in the gas storage chamber 13 can be maintained in a stable and suitable state, providing a reliable gas reserve for the subsequent power generation process.

[0045] The second throttle valve corresponds to the first throttle valve, and is arranged at the downstream position of the gas storage chamber 13, that is, on the path where the energy storage gas flows from the gas storage chamber 13 to the first turbine 14. The second throttle valve is used to further adjust and control the flow rate and pressure of the energy storage gas released from the gas storage chamber 13 to adapt to the operation requirements of the first turbine 14 under different working conditions. By adjusting the opening of the second throttle valve, it can be ensured that the gas flow rate and pressure entering the first turbine 14 match the design parameters of the first turbine 14, thereby improving the power generation efficiency and stability.

[0046] According to some embodiments of the present invention, Figure 1As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a solar circuit 16, in which a second heat storage medium is provided in circulation, and the second heat storage medium can absorb and store heat energy from a solar collector 161, and can effectively exchange heat with the energy storage gas. After being heated, the second heat storage medium will exchange heat with the compressed gas, and the second heat storage medium will release its stored heat energy to heat the energy storage gas, thereby increasing the temperature and pressure of the gas to prepare for the subsequent power generation process. A solar collector 161 is provided on the solar circuit 16, and the solar collector 161 is used to collect and convert solar energy into thermal energy. The solar circuit 16 is used to release heat to heat the energy storage gas during the power generation process of the first turbine 14. During the power generation process of the first turbine 14, the solar circuit 16 releases the heat previously collected and stored in the second heat storage medium by the solar collector 161, thereby heating the energy storage gas to a higher temperature and pressure, thereby possibly improving the power generation efficiency.

[0047] According to some embodiments of the present invention, Figure 1 As shown, the solar circuit 16 is provided with a hot heat storage tank 162 and a cold heat storage tank 163 suitable for storing the second heat storage medium. The hot heat storage tank 162 is used to store the second heat storage medium that has been heated by the solar collector 161 and absorbed heat energy. When the solar energy is sufficient and the collector can efficiently convert the solar energy into heat energy, the excess heat energy can be stored by storing the heated second heat storage medium in the hot heat storage tank 162. Even at times when solar energy is insufficient or at night when solar energy cannot be directly used for heating, the heat energy stored in the hot heat storage tank 162 can still be used to heat the energy storage gas to maintain or improve the power generation efficiency. The cold heat storage tank 163 is used to store the second heat storage medium that has been cooled after heat exchange with the compressed gas. When the second heat storage medium transfers heat energy to the energy storage gas during the heat exchange process, its temperature will drop. At this time, the cooled second heat storage medium will be introduced into the cold heat storage tank 163 for temporary storage.

[0048] According to some embodiments of the present invention, Figure 1As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a low-temperature interstage reheater 17, which is used to heat the energy storage gas flowing through to increase its temperature and pressure energy, thereby increasing the power generation efficiency. The low-temperature interstage reheater 17 is constructed in multiples to better control the heating process of the heat storage gas and improve the overall efficiency. Each low-temperature interstage reheater 17 is arranged between two adjacent first turbines 14 or between the first turbine 14 and the gas storage chamber 13, so when the energy storage gas expands and works in each first turbine 14, the temperature and pressure will be significantly reduced. By arranging a low-temperature interstage reheater 17 after each such expansion stage, the "step-by-step" recovery and improvement of the energy of the energy storage gas can be achieved. Specifically, when the energy storage gas flows out of the first first turbine 14, part of the energy of the energy storage gas has been converted into mechanical energy to drive the first turbine 14, and at this time, the temperature and pressure of the energy storage gas have both decreased. The stored gas is then directed to the first low-temperature interstage reheater 17 where it is preliminarily heated by the solar circuit 16 .

[0049] The low-temperature interstage reheater 17 is provided with a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is connected to the solar energy circuit 16, so that the second heat storage medium of the solar energy circuit 16 can enter the first heat exchange channel, and use solar energy as a heat source to heat the energy storage gas. The second heat exchange channel is connected to the energy storage gas inlet, so that the energy storage gas enters the second heat exchange channel and is heated by heat exchange with the second heat storage medium of the first heat exchange channel. The low-temperature interstage reheater 17 uses the low-grade heat energy of the solar energy circuit 16 to preliminarily heat the energy storage gas, thereby improving the comprehensive utilization efficiency of energy.

[0050] The adiabatic compressed air energy storage combined heat and power system 1 coupled with the organic Rankine cycle also includes a high-temperature interstage reheater 18, which is also used to increase the temperature and pressure energy of the energy storage gas, thereby further improving the power generation efficiency. The high-temperature interstage reheater 18 is constructed in multiples, and each low-temperature interstage reheater 17 is arranged between the downstream of the low-temperature interstage reheater 17 and the first turbine 14, so each high-temperature interstage reheater 18 is arranged downstream of the corresponding low-temperature interstage reheater 17 and is adjacent to the next first turbine 14. After the energy storage gas flows out from a first turbine 14 and completes work, it will first enter a low-temperature interstage reheater 17 for heating, and then enter the high-temperature interstage reheater 18 for further temperature increase, and finally enter the next first turbine 14 to continue to expand and do work.

[0051] The high-temperature interstage reheater 18 is provided with a third heat exchange channel and a fourth heat exchange channel. The third heat exchange channel is connected to the heat storage loop 15, so that the first heat storage medium of the heat storage loop 15 can enter the third heat exchange channel, and the heat collected by the heat storage loop 15 in the energy storage gas compression stage is used to heat the energy storage gas, thereby realizing the recycling of energy and improving the thermal efficiency of the system. The fourth heat exchange channel is connected to the second heat exchange channel, so that the energy storage gas flows out of the second heat exchange channel and enters the fourth heat exchange channel after being preliminarily heated by the low-temperature interstage reheater 17. The energy storage gas further exchanges heat with the first heat storage medium in the third heat exchange channel, absorbs more heat, and thus further improves its temperature and pressure. The multi-stage heating method not only improves the work capacity of the energy storage gas, but also significantly improves the power generation efficiency of the entire system. The high-temperature interstage reheater 18 uses the high-grade heat energy of the energy storage loop to further heat the energy storage gas, significantly improving the overall performance of the adiabatic compressed air energy storage combined heat and power system 1 coupled with the organic Rankine cycle.

[0052] According to some embodiments of the present invention, Figure 1 As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a first heat exchanger 19, which is arranged between the compression device 11 and the gas storage chamber 13. Therefore, when the energy storage gas is compressed by the compression device 11 and is ready to be stored in the gas storage chamber 13, the energy storage gas will first flow through the first heat exchanger 19. The first heat exchanger 19 is provided with a first heat exchange flow channel and a second heat exchange flow channel. The first heat exchange flow channel is connected to the energy storage gas outlet, so that the compressed high-temperature energy storage gas can enter the first heat exchange flow channel. The second heat exchange flow channel is suitable for passing a heat exchange medium, which may be water, heat transfer oil or other fluids suitable for heat exchange. When the high-temperature energy storage gas flows in the first heat exchange flow channel, the energy storage gas will transfer the waste heat it carries to the heat exchange medium in the second heat exchange flow channel, so that the heat exchange medium can be heated, and the temperature of the energy storage gas will drop accordingly, which not only recovers the waste heat released by the energy storage gas during the compression process, but also provides a heat source for the heat exchange medium.

[0053] The heated heat exchange medium can be used for a variety of purposes, such as heating, hot water supply or as a heat source for other industrial processes, which not only improves the energy utilization efficiency of the entire system, but also enables the system to generate additional heat energy output, thereby increasing the economy and practicality of the system.

[0054] According to some embodiments of the present invention, Figure 1As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a second heat exchanger 20, which is arranged on the heat storage loop 15 so that the first heat storage medium of the energy storage loop can flow through the second heat exchanger 20. The second heat exchanger 20 is provided with a third heat exchange flow channel and a fourth heat exchange flow channel, and the third heat exchange flow channel is connected to the heat storage loop 15, and the first heat storage medium after heat exchange with the energy storage gas can enter the third heat exchange flow channel. The fourth heat exchange flow channel is suitable for passing a heat exchange medium, and the heat exchange medium may also be water, heat transfer oil or other fluids suitable for heat exchange. After exchanging heat with the energy storage gas, the first heat storage medium will flow to the second heat exchanger 20. When the first heat storage medium flows in the third heat exchange channel, the first heat storage medium will transfer the waste heat it carries to the heat exchange medium in the fourth heat exchange channel, so that the heat exchange medium can be heated, and the temperature of the first heat storage medium will drop accordingly, which not only recovers the waste heat released by the first heat storage medium in the heat exchange process, but also provides an additional heat source for the heat exchange medium.

[0055] The heated heat exchange medium can be used for a variety of purposes, such as heating, hot water supply or as a heat source for other industrial processes, which not only improves the energy utilization efficiency of the entire system, but also enables the system to generate additional heat energy output, thereby increasing the economy and practicality of the system.

[0056] According to some embodiments of the present invention, Figure 1 As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with the organic Rankine cycle also includes a waste heat utilization loop 21, which is connected to the heat storage loop 15, so that the waste heat in the heat storage loop 15 can be effectively drawn out and utilized, thereby improving the comprehensive utilization efficiency of energy.

[0057] The adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes an evaporator 211, which is arranged on the waste heat utilization loop 21. The evaporator 211 uses waste heat to transform the working medium from liquid to gas (i.e., evaporates). At this time, the working medium absorbs heat, thereby realizing the recovery and utilization of waste heat.

[0058] The adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a second turbine 212, which is connected to the evaporator 211. After the working fluid evaporates in the evaporator 211, its volume will expand rapidly to produce high-pressure steam. The high-pressure steam is sent to the second turbine 212 to drive the rotor of the turbine to rotate. The rotation of the turbine can be converted into electrical energy or other forms of mechanical energy, thereby realizing the energy conversion and utilization of waste heat.

[0059] The adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle further includes a condenser 213, which is disposed downstream of the second turbine 212. The condenser 213 is used to re-condense the steam discharged from the second turbine 212 into a liquid working medium, at which time the steam releases heat. The condensed liquid working medium is sent back to the evaporator 211 to prepare for the next round of heat exchange and energy conversion process.

[0060] The adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes a working fluid pump 214, which is arranged between the condenser 213 and the evaporator 211. The working fluid pump 214 pressurizes the liquid working fluid so that it can overcome the resistance in the pipeline and flow back to the evaporator 211 smoothly.

[0061] Through the waste heat utilization loop 21 and its related evaporator 211, second turbine 212, condenser 213 and working fluid pump 214, the waste heat in the heat storage loop 15 can be efficiently recovered and utilized, and converted into electrical energy or other forms of mechanical energy, thereby further improving the energy utilization efficiency of the entire adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle.

[0062] According to some embodiments of the present invention, Figure 1 As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with an organic Rankine cycle also includes an absorption refrigerator 215. The absorption refrigerator 215 is a refrigeration device driven by thermal energy. It does not require electricity or other forms of external energy to drive the compressor, but directly uses waste heat to provide a refrigeration effect. The absorption refrigerator 215 is arranged in the waste heat utilization loop 21 and is connected to the downstream of the evaporator 211. After the working fluid steam flowing out of the evaporator 211 drives the second turbine 212 to do work, its remaining heat can be directed to the absorption refrigerator 215. Inside the absorption refrigerator 215, low-grade heat is used to drive the refrigeration cycle to generate cold.

[0063] By providing the absorption chiller 215, not only the utilization efficiency of waste heat is improved, but also the adiabatic compressed air energy storage combined heat and power system 1 coupled with the organic Rankine cycle can provide refrigeration services while providing electricity or other forms of mechanical energy, further broadening the application field of the system and improving its overall economy and practicality.

[0064] According to some embodiments of the present invention, Figure 1As shown, the second heat exchanger 20 is arranged on the waste heat utilization loop 21 and is located downstream of the absorption refrigerator 215, so that the waste heat discharged from the absorption refrigerator 215 (i.e., the heat that is not fully utilized during the refrigeration process) can be further captured and utilized. The second heat exchanger 20 is used to exchange heat with the heat exchange medium flowing through it. Through heat exchange, the waste heat discharged by the absorption refrigerator 215 is transferred to the heat exchange medium, causing its temperature to increase. The third heat exchange flow channel is connected to the waste heat utilization loop 21, so that the first heat storage medium in the waste heat utilization loop 21 can enter the third heat exchange flow channel. When the first heat storage medium flows in the third heat exchange flow channel, the first heat storage medium will transfer the waste heat it carries to the heat exchange medium in the fourth heat exchange flow channel, so that the heat exchange medium can be heated, and the temperature of the first heat storage medium will drop accordingly, providing an additional heat source for the heat exchange medium.

[0065] According to some embodiments of the present invention, Figure 1 As shown, the adiabatic compressed air energy storage combined heat and power system 1 coupled with the organic Rankine cycle also includes an interstage cooler 22, which is used to cool the energy storage gas to better control the temperature of the energy storage gas during the compression process. The interstage cooler 22 is constructed in multiples, and each interstage cooler 22 is arranged between two adjacent compression devices 11 or between the compression device 11 and the gas storage chamber 13. Whenever the energy storage gas is compressed by a compression device 11, its temperature and pressure will rise. At this time, it is necessary to reduce its temperature through the interstage cooler 22 to ensure that the compression process can be carried out stably and efficiently.

[0066] The interstage cooler 22 is provided with a fifth heat exchange channel and a sixth heat exchange channel, and the fifth heat exchange channel is connected to the heat storage loop 15, so the first heat storage medium in the heat storage loop 15 can flow through the fifth heat exchange channel and transfer the heat it carries to the interstage cooler 22. The sixth heat exchange channel is connected to the energy storage gas outlet, so when the energy storage gas flows through the sixth heat exchange channel, it will exchange heat with the heat medium in the fifth heat exchange channel, thereby being cooled down.

[0067] The interstage cooler 22 can effectively control the temperature of the energy storage gas during the compression process to prevent overheating and equipment damage or efficiency loss. In addition, the interstage cooler 22 can also recover part of the heat generated by the energy storage gas during the compression process and store it in the heat storage loop 15. The heat stored in the heat storage loop 15 can be reused in the subsequent power generation process, thereby improving the energy utilization efficiency of the entire system.

[0068] According to some embodiments of the present invention, the power generation source 12 is configured as a new energy power station, which includes at least one renewable energy power generation technology and can generate electricity by utilizing sustainable and environmentally friendly energy in nature. The new energy power station includes at least one of a wind power generation device, a solar power generation device, a hydropower generation device, and a biomass power generation device. Depending on the specific geographical location, resource conditions, economic and technical feasibility, etc., the new energy power station can selectively configure one or more of the above-mentioned renewable energy power generation technologies.

[0069] Wind power generation devices use wind power to drive wind turbines, converting wind energy into electrical energy. This type of power generation is particularly suitable for areas with abundant wind resources. Solar power generation devices use the photovoltaic effect or photothermal effect to convert solar energy into electrical energy or heat energy, and then further convert it into electrical energy. Hydropower generation devices use water resources such as water flow, water level or tides to drive turbines and convert water energy into electrical energy. Biomass power generation devices use biomass (such as crop straw, forest waste, urban garbage, etc.) to burn or ferment to generate heat energy or biogas, which is then converted into electrical energy.

[0070] By building a new energy power station, we can reduce dependence on traditional fossil energy and reduce greenhouse gas emissions, thereby optimizing the energy structure and achieving sustainable environmental development. At the same time, the new energy power station can also provide stable power input for the adiabatic compressed air energy storage combined heat and power system coupled with the organic Rankine cycle1, further improving the efficiency and reliability of the entire energy system.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An adiabatic compressed air energy storage combined heating and power system coupled with an organic Rankine cycle, characterized in that: include: A compression device (11), wherein the compression device (11) is configured as a plurality of compression devices connected to each other, the plurality of compression devices (11) are respectively connected to a power generation source (12), and each of the compression devices (11) is provided with an energy storage gas outlet; A gas storage chamber (13), the gas storage chamber (13) being in communication with the energy storage gas outlet; A first turbine (14), wherein the first turbine (14) is constructed as a plurality of turbines connected to each other, each of the first turbines (14) is provided with an energy storage gas inlet, and the energy storage gas inlet is communicated with the gas storage chamber (13); A heat storage circuit (15) is provided with a first heat storage medium circulating therein, the first heat storage medium being suitable for exchanging heat with an energy storage gas, the heat storage circuit (15) being used to absorb and store heat from the energy storage gas during the process of compressing the energy storage gas by the compression device (11), and to release heat to heat the energy storage gas during the process of generating electricity by the first turbine (14).

2. The adiabatic compressed air energy storage combined heating and power system coupled with an organic Rankine cycle according to claim 1, characterized in that: Also includes: A solar circuit (16), wherein a second heat storage medium is provided in a circulating manner, the second heat storage medium is suitable for exchanging heat with an energy storage gas, the solar circuit (16) is provided with a solar collector (161), the solar collector (161) is suitable for collecting solar energy and converting it into thermal energy, and the solar circuit (16) is used to release heat to heat the energy storage gas during the power generation process of the first turbine (14).

3. The adiabatic compressed air energy storage combined cooling, heating and power system coupled with an organic Rankine cycle according to claim 2, characterized in that: Also includes: a low-temperature interstage reheater (17), wherein the low-temperature interstage reheater (17) is constructed in plurality, each of the low-temperature interstage reheaters (17) being arranged between two adjacent first turbines (14) or between the first turbine (14) and the gas storage chamber (13), the low-temperature interstage reheater (17) being provided with a first heat exchange channel and a second heat exchange channel, the first heat exchange channel being in communication with the solar energy circuit (16), and the second heat exchange channel being in communication with the energy storage gas inlet; A high-temperature interstage reheater (18), wherein the high-temperature interstage reheater (18) is constructed in plurality, each of the low-temperature interstage reheaters (17) is arranged between the downstream of the low-temperature interstage reheater (17) and the first turbine (14), and the high-temperature interstage reheater (18) is provided with a third heat exchange channel and a fourth heat exchange channel, wherein the third heat exchange channel is connected to the heat storage circuit (15), and the fourth heat exchange channel is connected to the second heat exchange channel.

4. The adiabatic compressed air energy storage combined heating and power system coupled with an organic Rankine cycle according to claim 1, characterized in that: Also includes: A first heat exchanger (19), wherein the first heat exchanger (19) is disposed between the compression device (11) and the gas storage chamber (13), and wherein the first heat exchanger (19) is provided with a first heat exchange channel and a second heat exchange channel, wherein the first heat exchange channel is connected to the energy storage gas outlet, and the second heat exchange channel is suitable for allowing a heat exchange medium to pass therethrough so as to utilize the waste heat of the energy storage gas to heat the heat exchange medium.

5. The adiabatic compressed air energy storage combined heating and power system coupled with an organic Rankine cycle according to claim 1, characterized in that: Also includes: A second heat exchanger (20), wherein the second heat exchanger (20) is arranged on the heat storage circuit (15), and the second heat exchanger (20) is provided with a third heat exchange channel and a fourth heat exchange channel, wherein the third heat exchange channel is connected to the heat storage circuit (15), and the fourth heat exchange channel is suitable for passing a heat exchange medium, so as to heat the heat exchange medium by utilizing the residual heat of the first heat storage medium after the first heat storage medium exchanges heat with the energy storage gas.

6. The adiabatic compressed air energy storage combined cooling, heating and power system coupled with an organic Rankine cycle according to claim 5, characterized in that: Also includes: A waste heat utilization circuit (21), the waste heat utilization circuit (21) being in communication with the heat storage circuit (15); an evaporator (211), the evaporator (211) being arranged on the waste heat utilization circuit (21); a second turbine (212), the second turbine (212) being connected to the evaporator (211); a condenser (213), the condenser (213) being disposed downstream of the second turbine (212); A working fluid pump (214), wherein the working fluid pump (214) is arranged between the condenser (213) and the evaporator (211).

7. The adiabatic compressed air energy storage combined cooling, heating and power system coupled with an organic Rankine cycle according to claim 6, characterized in that: Also includes: An absorption refrigerator (215), wherein the absorption refrigerator (215) is disposed in the waste heat utilization circuit (21) and is connected downstream of the evaporator (211).

8. The adiabatic compressed air energy storage combined cooling, heating and power system coupled with an organic Rankine cycle according to claim 7, characterized in that: The second heat exchanger (20) is arranged on the waste heat utilization circuit (21) and is located downstream of the absorption refrigerator (215), and the third heat exchange flow channel is connected to the waste heat utilization circuit (21) to utilize the waste heat discharged from the absorption refrigerator (215) to heat the heat exchange medium.

9. The adiabatic compressed air energy storage combined cooling, heating and power system coupled with an organic Rankine cycle according to claim 1, characterized in that: The invention also comprises: an interstage cooler (22), wherein the interstage cooler (22) is constructed in plurality, each of the interstage coolers (22) is arranged between two adjacent compression devices (11) or between the compression device (11) and the gas storage chamber (13), and the interstage cooler (22) is provided with a fifth heat exchange channel and a sixth heat exchange channel, the fifth heat exchange channel is connected to the heat storage circuit (15), and the sixth heat exchange channel is connected to the energy storage gas outlet.

10. The adiabatic compressed air energy storage combined cooling, heating and power system coupled with an organic Rankine cycle according to claim 1, characterized in that: The power generation source (12) is configured as a new energy power station, which includes at least one of a wind power generation device, a solar power generation device, a hydropower generation device and a biomass power generation device.

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