Waste incineration power station and comprehensive energy system based on waste incineration power station

Abstract

The invention discloses a waste incineration power station and a comprehensive energy system based on the waste incineration power station, and relates to the technical field of solid waste resource utilization. The comprehensive energy system comprises a power supply module, a heat supply module, a cold supply module, a cold energy generation module and a controller. The power supply module is used for acquiring and transmitting electric energy generated by the waste incineration power station; the heat supply module is used for obtaining and transmitting heat energy output by the waste incineration power station. The cold energy generation module is used for obtaining flue gas output by the waste incineration power station and generating cold energy under the driving of the flue gas; the cold supply module is used for acquiring and transmitting the cold energy output by the cold energy generation module; the controller is connected with the power supply module, the heat supply module, the cold supply module and the cold energy generation module. The controller is used for controlling the working states of the power supply module, the heat supply module, the cold energy generation module and the cold supply module according to the current demand load of a user. Through co-production and co-supply of multiple loads such as electricity, heat and cold, solid waste resource utilization and sustainable development are promoted.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of solid waste resource utilization, and particularly relates to a waste incineration power station and a comprehensive energy system based on the waste incineration power station. BACKGROUND

[0002] From the perspective of ecology and resource utilization, domestic waste is both an environmental pollution source and a renewable resource, and the combustion heat of the domestic waste is equivalent to the heat released by coal combustion, and has significant energy conversion potential. Reasonably utilizing waste incineration to build a distributed energy system can not only save coal resources, but also promote the optimization of energy structure and sustainable development.

[0003] In the prior art, the distributed energy technology using waste as fuel mainly includes coal water slurry, waste gasification melting, fluidized bed mixed combustion and waste power generation, and is widely used in the conversion of domestic waste into electric energy and thermal energy. For example, a coal-fired combined power generation system combining geothermal energy, biomass, waste, sludge drying and solar light and heat, which converts renewable energy into electric energy and thermal energy through a power system, wherein the electric energy is partially used for regional power supply and partially enters an energy grading device to supply energy for a refrigeration and heating system. However, the prior art lacks a scheme for utilizing cold energy generated by waste incineration, and it is difficult to meet the cold load demand of users and realize the co-production and co-supply of electric energy, thermal energy and cold energy. SUMMARY

[0004] The present application provides a waste incineration power station and a comprehensive energy system based on the waste incineration power station, which uses municipal solid waste as the main energy source, and realizes the co-production and co-supply of electric energy, thermal energy and cold energy, thereby promoting the resource utilization of municipal solid waste and sustainable development.

[0005] The first aspect of the present application provides a comprehensive energy system based on a waste incineration power station, which comprises a power supply module, a heat supply module, a cold supply module, a cold energy generation module and a controller.

[0006] The power supply module is electrically connected to the power supply end of the waste incineration power station, and the power supply module is used to obtain and transmit the electric energy generated by the waste incineration power station.

[0007] The heat energy input port of the heat supply module is in communication with the heat energy output port of the waste incineration power station, and the heat supply module is used to obtain and transmit the heat energy output by the heat energy output port of the waste incineration power station.

[0008] The flue gas input port of the cold energy generation module is in communication with the flue gas output port of the waste incineration power station, and the cold energy generation module is used to obtain the flue gas output by the flue gas output port of the waste incineration power station and generate cold energy under the drive of the flue gas.

[0009] The cold energy input port of the cold supply module is in communication with the cold energy output port of the cold energy generation module, and the cold supply module is configured to obtain and transmit the cold energy output by the cold energy output port of the cold energy generation module.

[0010] The controller is connected with the power supply module, the heat supply module, the cold supply module and the cold energy generation module respectively, and is configured to obtain the demand load of the user in real time, and control the working states of the power supply module, the heat supply module, the cold energy generation module and the cold supply module according to the current demand load.

[0011] Optionally, the cold energy generation module comprises a heat pump and a cold supply pipeline.

[0012] The flue gas output port of the waste incineration power station is in communication with the flue gas input port of the heat pump, so that the heat pump generates cold energy under the driving of the flue gas; and the flue gas is discharged through the flue gas output port of the heat pump.

[0013] The cold energy output port of the heat pump is in communication with the cold energy input port of the cold supply pipeline, and the cold energy output port of the cold supply pipeline is in communication with the cold energy input port of the cold supply module, and the cold supply pipeline is configured to transmit the cold energy generated by the heat pump to the cold energy input port of the cold supply module.

[0014] Optionally, the comprehensive energy system based on the waste incineration power station further comprises a cold storage module.

[0015] The cold storage module is arranged in the cold energy transmission path between the cold energy generation module and the cold supply module.

[0016] The controller is further connected with the cold storage module, and the controller is further configured to obtain the cold energy output power of the cold energy generation module, and control the cold storage module to store or release cold energy according to the cold energy output power and the current cold energy demand load.

[0017] Optionally, the comprehensive energy system based on the waste incineration power station further comprises a power generation module.

[0018] The power generation module is electrically connected with the power receiving end of the waste incineration power station and the power receiving end of the power supply module respectively, and is configured to generate a power supply signal and selectively provide the power supply signal to the waste incineration power station and the power supply module.

[0019] Optionally, the comprehensive energy system based on the waste incineration power station further comprises a power storage module.

[0020] The power storage module is arranged in the power transmission path between the power generation module and the power supply module.

[0021] The controller is also connected with the electricity storage module, and the controller is further configured to acquire the electricity output power of the electricity generation module and the electricity output power of the waste incineration power station, and control the electricity storage module to store or release electricity according to the electricity output power of the electricity generation module, the electricity output power of the waste incineration power station, and a current electricity demand load.

[0022] Optionally, the electricity generation module comprises at least one of a photovoltaic electricity generation module and a wind energy electricity generation module.

[0023] Optionally, the comprehensive energy system based on the waste incineration power station further comprises a heating module.

[0024] The heating module is configured to generate heating heat energy and selectively provide the heating heat energy to the heat supply module.

[0025] Optionally, the comprehensive energy system based on the waste incineration power station further comprises a heat storage module.

[0026] The heat storage module is arranged in a heat energy transmission path between the heating module and the heat supply module.

[0027] The controller is also connected with the heat storage module, and the controller is further configured to acquire the heat energy output power of the heating module and the heat energy output power of the waste incineration power station, and control the heat storage module to store or release heat energy according to the heat energy output power of the heating module, the heat energy output power of the waste incineration power station, and a current heat energy demand load.

[0028] Optionally, the heating module comprises at least one of a light energy heating module and a wind energy heating module.

[0029] Optionally, the comprehensive energy system based on the waste incineration power station further comprises a recycling module.

[0030] The residue recycling port of the recycling module is in communication with a residue discharge port of the waste incineration power station, and the recycling module is configured to recycle residues generated by the waste incineration power station.

[0031] The recycling module is further configured to process the residues and prepare energy storage materials.

[0032] The energy storage materials comprise at least one of electricity storage materials, heat storage materials, and cold storage materials.

[0033] The second aspect of the present application provides a waste incineration power station, which comprises a thermal power unit, a plurality of energy conversion modules, and a comprehensive energy system based on the waste incineration power station as described above.

[0034] The flue gas outlet of the thermal power generating unit is communicated with the flue gas inlet of the energy conversion module.

[0035] The electric energy outlet of the energy conversion module is electrically connected with the power supply module, and the heat energy outlet of the energy conversion module is communicated with the heat energy inlet of the heat supply module.

[0036] The technical scheme of the present application, by setting the power supply module, the heat supply module, the cold supply module, the cold energy generation module and the controller in the comprehensive energy system based on the waste incineration power station, and by setting the power supply module to be electrically connected with the power supply end of the waste incineration power station, the heat energy inlet of the heat supply module to be communicated with the heat energy outlet of the waste incineration power station, and the flue gas inlet of the cold energy generation module to be communicated with the flue gas outlet of the waste incineration power station, so that the power supply module can obtain and transmit the electric energy generated by the waste incineration power station to meet the electric energy demand load of the user; the heat supply module can obtain and transmit the heat energy output by the heat energy outlet of the waste incineration power station to meet the heat energy demand load of the user; the cold energy generation module can obtain the flue gas output by the flue gas outlet of the waste incineration power station and generate cold energy under the driving of the flue gas. And by setting the cold energy inlet of the cold supply module to be communicated with the cold energy outlet of the cold energy generation module, the cold supply module can obtain and transmit the cold energy output by the cold energy outlet of the cold energy generation module to meet the cold energy demand load of the user. Thus, the city solid waste is used as the main energy source to provide multi-energy supply of electric energy, heat energy and cold energy for the user, and the resource utilization of city solid waste and sustainable development are promoted. In addition, by setting the controller to be connected with the power supply module, the heat supply module, the cold supply module and the cold energy generation module, the controller can obtain the demand load of the user in real time, and can control the working state of the power supply module, the heat supply module, the cold energy generation module and the cold supply module according to the current demand load, so as to provide energy on demand for the user according to the current demand load, reduce energy waste, and improve the efficiency and stability of the comprehensive energy system.

[0037] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0039] Figure 1 is a structural schematic diagram of a comprehensive energy system based on a waste incineration power station provided by an embodiment of the present application;

[0040] Figure 2 is another structural schematic diagram of a comprehensive energy system based on a waste incineration power station provided by an embodiment of the present application;

[0041] Figure 3 is a structural schematic diagram of a waste incineration power station provided by an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the personnel in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0043] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] Figure 1 is a structural schematic diagram of a comprehensive energy system based on a waste incineration power station provided by an embodiment of the present application. As Figure 1As shown, the comprehensive energy system based on the waste incineration power station comprises: a power supply module 1, a heat supply module 2, a cold supply module 3, a cold energy generation module 4, and a controller 5; the power supply module 1 is electrically connected with a power supply end 011 of the waste incineration power station 01, and the power supply module 1 is used to obtain and transmit the electric energy generated by the waste incineration power station 01; a heat energy input port 21 of the heat supply module 2 is in communication with a heat energy output port 012 of the waste incineration power station 01, and the heat supply module 2 is used to obtain and transmit the heat energy output by the heat energy output port 012 of the waste incineration power station 01; a flue gas input port 41 of the cold energy generation module 4 is in communication with a flue gas output port 013 of the waste incineration power station 01, and the cold energy generation module 4 is used to obtain the flue gas output by the flue gas output port 013 of the waste incineration power station 01 and generate cold energy under the driving of the flue gas; a cold energy input port 31 of the cold supply module 3 is in communication with a cold energy output port 42 of the cold energy generation module 4, and the cold supply module 3 is used to obtain and transmit the cold energy output by the cold energy output port 42 of the cold energy generation module 4; the controller 5 is connected with the power supply module 1, the heat supply module 2, the cold supply module 3, and the cold energy generation module 4 respectively; the controller 5 is used to obtain the demand load of the user in real time, and control the working states of the power supply module 1, the heat supply module 2, the cold energy generation module 4, and the cold supply module 3 according to the current demand load.

[0045] The waste incineration power station 01 is specifically used to burn renewable fuels and / or non-renewable fuels to generate flue gas, electric energy and heat energy. The renewable fuels can specifically include organic matters in household garbage and biomass organic matters in medical waste, and the non-renewable fuels can specifically include plastics, rubbers, etc. in household garbage, plastic products, chemical medicine residues, etc. in medical waste, and inorganic matters, heavy metals, etc. in municipal sludge. Specifically, the waste incineration power station 01 can convert the chemical energy in municipal solid waste into flue gas and residues by high-temperature combustion of household garbage, medical waste and municipal sludge. The high-temperature flue gas generated by combustion can be converted into heat energy and electric energy by the waste incineration power station 01. The power supply module 1 is electrically connected with the power supply end 011 of the waste incineration power station 01, so that the power supply module 1 can obtain and transmit the electric energy generated by the waste incineration power station 01. The heat energy input port 21 of the heat supply module 2 is in communication with the heat energy output port 012 of the waste incineration power station 01, so that the heat supply module 2 can obtain and transmit the heat energy output by the heat energy output port 012 of the waste incineration power station 01. The flue gas input port 41 of the cold energy generation module 4 is in communication with the flue gas output port 013 of the waste incineration power station 01, so that the cold energy generation module 4 can obtain the flue gas output by the flue gas output port 013 of the waste incineration power station 01 and generate cold energy under the driving of the flue gas. Thus, the waste incineration power station 01 can provide basic energy for the comprehensive energy system based on the incineration of municipal solid waste, realizing the resource utilization of municipal solid waste.

[0046] The cold energy generation module 4 is specifically configured to generate cold energy under the driving of flue gas output by the flue gas outlet 013 of the waste incineration power station 01, and the cold energy input port 31 of the cold supply module 3 is in communication with the cold energy output port 42 of the cold energy generation module 4, so that the cold supply module 3 can obtain and transmit the cold energy output by the cold energy output port 42 of the cold energy generation module 4.

[0047] Optionally, Figure 2 is another structural schematic diagram of a comprehensive energy system based on a waste incineration power station provided by an embodiment of the present application. As shown in Figure 2 The cold energy generation module 4 includes a heat pump 401 and a cold supply pipeline 402; the flue gas outlet 013 of the waste incineration power station 01 is in communication with the flue gas input port 4011 of the heat pump 401, so that the heat pump 401 generates cold energy under the driving of flue gas; the flue gas is discharged through the flue gas output port of the heat pump 401; the cold energy output port 4012 of the heat pump 401 is in communication with the cold energy input port 4021 of the cold supply pipeline 402, and the cold energy output port 4022 of the cold supply pipeline 402 is in communication with the cold energy input port 31 of the cold supply module 3, and the cold supply pipeline 402 is used to transmit the cold energy generated by the heat pump 401 to the cold energy input port 31 of the cold supply module 3. The heat pump 401 can be specifically understood as a non-electrically driven heat pump, for example, an absorption heat pump, which can include a generator, a condenser, an evaporator and an absorber. The flue gas output by the flue gas outlet 013 of the waste incineration power station 01 can enter the generator through the flue gas input port 4011 of the heat pump 401, so that the flue gas can heat the refrigerant and the absorbent solution in the generator, for example, water can be used as the refrigerant, and lithium bromide can be used as the absorbent, so that the refrigerant can evaporate into steam, and then the steam is condensed in the condenser and evaporated in the evaporator to generate cold energy. The refrigerant vapor finally mixes with the absorbent in the absorber to form the refrigerant and the absorbent solution again, and then flows back to the generator to complete the circulation process. In addition, the flue gas can be discharged to the purification system through the flue gas output port of the heat pump 401. The cold energy output port 4012 of the heat pump 401 is in communication with the cold energy input port 4021 of the cold supply pipeline 402, and the cold energy output port 4022 of the cold supply pipeline 402 is in communication with the cold energy input port 31 of the cold supply module 3, so that the cold supply pipeline 402 can transmit the cold energy generated by the heat pump 401 to the cold energy input port 31 of the cold supply module 3. For example, the cold supply pipeline 402 can exchange heat with the evaporator, so that the cold supply pipeline 402 can obtain and transmit the cold energy generated by the heat pump 401.

[0048] It can be understood that the flue gas output through the flue gas output port 013 drives the cold energy generation module 4 to generate cold energy, so as to realize the cogeneration of electricity, heat, cold and other loads with municipal solid waste as the main energy source. At the same time, the temperature of the flue gas discharged at the tail of the waste incineration power station 01 is low, for example, the flue gas heat energy with a temperature of 120°C is not utilized and will be directly discharged, while the cold energy generation module 4 can utilize the flue gas with a relatively low temperature as a driving force, thereby reducing the power consumption, improving the energy utilization efficiency, and reducing the carbon emission.

[0049] The power supply module 1 can specifically include a power distribution network, and the power supply module 1 can deliver the electric energy generated by the waste incineration power station 01 to the user end, so as to meet the electric energy demand load of the user, for example, to provide stable and efficient power supply for resident lighting or industrial equipment, to meet the diversified power demand of the user end, and to reduce the dependence on external power grid. The heat supply module 2 can specifically include a hot water pipeline system or a hot steam pipeline system, and the heat supply module 2 can deliver the heat energy generated by the waste incineration power station 01 to the user end, so as to meet the heat energy demand load of the user, for example, to meet the heating, hot water or industrial heat demand of the user, and to reduce the dependence on fossil fuels and the carbon emission. The cold supply module 3 can specifically include a cold water pipeline system, and the cold supply module 3 can deliver the cold energy generated by the cold energy generation module 4 to the user end, so as to meet the cold energy demand load of the user, for example, to meet the air conditioning or industrial refrigeration demand of the user. Through the power supply module 1, the heat supply module 2 and the cold supply module 3, the multi-energy cogeneration of electric energy, heat energy and cold energy for the user is realized with municipal solid waste as the main energy source, which promotes the resource utilization of municipal solid waste and sustainable development.

[0050] The controller 5 can specifically include a microprocessor, for example, a central processing unit (CPU), and can also include other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The controller 5 can obtain the user's demand load in real time, which can specifically include the electric energy demand load, the thermal energy demand load and the cold energy demand load. For example, the controller 5 can obtain the electric energy demand load, the thermal energy demand load and the cold energy demand load of the user in real time through the smart meter, the heat meter and the cold meter in the user terminal respectively. The controller 5 is connected with the power supply module 1, the heat supply module 2, the cold supply module 3 and the cold energy generation module 4 respectively, so that the controller 5 can also control the working state of the power supply module 1, the heat supply module 2, the cold energy generation module 4 and the cold supply module 3 according to the current demand load of the user, so that the controller 5 can dynamically regulate and control the cold energy output power of the cold energy generation module 4 and can control the power supply module 1, the heat supply module 2 and the cold supply module 3 to supply energy for the user on demand. Through accurate regulation and control of the production and distribution of electric energy, thermal energy and cold energy, energy waste is reduced, and the efficiency and stability of the comprehensive energy system are improved.

[0051] In the embodiment, the power supply module, the heat supply module, the cold supply module, the cold energy generation module and the controller are arranged in the comprehensive energy system based on the waste incineration power station. The power supply module is electrically connected with the power supply end of the waste incineration power station, the heat energy input port of the heat supply module is communicated with the heat energy output port of the waste incineration power station, and the flue gas input port of the cold energy generation module is communicated with the flue gas output port of the waste incineration power station. Therefore, the power supply module can obtain and transmit the electric energy generated by the waste incineration power station, so as to meet the electric energy demand load of the user. The heat supply module can obtain and transmit the heat energy output by the heat energy output port of the waste incineration power station, so as to meet the heat energy demand load of the user. The cold energy generation module can obtain the flue gas output by the flue gas output port of the waste incineration power station, and generate cold energy under the driving of the flue gas. The cold energy input port of the cold supply module is communicated with the cold energy output port of the cold energy generation module, so that the cold supply module can obtain and transmit the cold energy output by the cold energy output port of the cold energy generation module, so as to meet the cold energy demand load of the user. Therefore, the city solid waste is used as the main energy source to provide multi-energy combined supply of electric energy, heat energy and cold energy for the user, and the resource utilization of city solid waste and sustainable development are promoted. In addition, the controller is connected with the power supply module, the heat supply module, the cold supply module and the cold energy generation module, so that the controller can obtain the demand load of the user in real time, and control the working state of the power supply module, the heat supply module, the cold energy generation module and the cold supply module according to the current demand load, so as to provide energy on demand for the user according to the current demand load, reduce energy waste, and improve the efficiency and stability of the comprehensive energy system.

[0052] Optionally, with reference to Figure 2 , the comprehensive energy system based on the waste incineration power station further comprises a cold storage module 301. The cold storage module 301 is arranged in the cold energy transmission path between the cold energy generation module 4 and the cold supply module 3. The controller 5 is further connected with the cold storage module 301, and the controller 5 is further used to obtain the cold energy output power of the cold energy generation module 4, and control the cold storage module 301 to store or release cold energy according to the cold energy output power and the current cold energy demand load.

[0053] The cold storage module 301 can specifically include a cold water storage tank, a phase change material cold storage device, and a heat exchanger, etc. Specifically, the cold storage module 301 is arranged in the cold energy transmission path between the cold energy generation module 4 and the cold supply module 3, so that the cold storage module 301 can store the excess cold energy generated by the cold energy generation module 4, and can release the stored cold energy to the cold supply module 3 when the cold energy generated by the cold energy generation module 4 is insufficient, so as to meet the current cold energy demand load of the user. For example, the controller 5 can measure the temperature difference of the cold water inlet and outlet in the cold supply pipeline 402 through the temperature sensor in the cold energy generation module 4, and can measure the mass flow rate of the cold water in the cold supply pipeline 402 through the flow sensor in the cold energy generation module 4, so as to obtain the cold energy power output by the cold energy generation module 4 in real time. After the controller 5 obtains the current cold energy power output by the cold energy generation module 4, the size of the current cold energy power and the current cold energy demand load obtained by the cold meter at the user end can be compared.

[0054] When the controller 5 determines that the current cold energy power is greater than the current cold energy demand load, the controller 5 controls the cold energy generation module 4 to transmit the excess cold energy to the cold storage module 301 for storage. For example, when the controller 5 determines that the current cold energy power of the cold energy generation module 4 is 100 kW and the current cold energy demand load is 60 kW, the controller 5 can control the cold energy generation module 4 to store the excess 40 kW of cold energy in the cold water storage tank or the phase change material by opening the valve between the cold storage module 301 and the cold energy transmission path, such as the cold energy transmission pipeline. At the same time, the controller 5 can also monitor the cold supply amount of the cold supply module 3 in real time through the temperature sensor and the flow sensor in the cold supply module 3, so that the controller 5 can also control the valve to be closed when it is determined that the cold supply amount of the cold supply module 3 reaches the current cold energy demand load, so as to ensure that the cold energy output by the cold supply module 3 can meet the current cold energy demand load of the user. The controller 5 is also connected with the cold storage module 301. When the controller 5 determines that the current cold energy power is less than the current cold energy demand load, the controller 5 controls the cold storage module 301 to release the stored cold energy to the cold supply module 3 to supplement the insufficient cold supply amount. For example, when the controller 5 determines that the current cold energy power of the cold energy generation module 4 is 80 kW and the current cold energy demand load is 120 kW, the controller 5 can control the cold storage module 301 to release the stored 40 kW of cold energy to the cold supply module 3 by opening the valve between the cold storage module 301 and the cold energy transmission pipeline. At the same time, the controller 5 can monitor the cold supply amount of the cold supply module 3 in real time through the temperature sensor and the flow sensor in the cold supply module 3, so as to ensure that the cold supply amount meets the current cold energy demand load.

[0055] The cold energy generated by the waste incineration power station 01 is stored by the cold storage module 301 and the cold energy generation module 4, which realizes the resource utilization of municipal solid waste and sustainable development. At the same time, the excess cold energy is stored in the cold storage module 301, and the cold energy is released when the cooling demand is insufficient, so that the integrated energy system can smooth the current cold energy demand load fluctuation of the user, such as the surge of air conditioning demand of the user in summer daytime. The cold storage module 301 can release the stored cold energy to meet the peak cold energy demand load, and ensure the stable operation of the cooling module 3. In addition, the cold storage module 301 can store excess cold energy when the cold energy demand load is low at night, avoiding the waste of cold energy and improving the efficiency and flexibility of the integrated energy system.

[0056] Optionally, with reference to Figure 2 , the integrated energy system based on the waste incineration power station further comprises: a power generation module 6; the power generation module 6 is connected with the power receiving end 014 of the waste incineration power station 01 and the power receiving end 11 of the power supply module 1 respectively; the power generation module 6 is used to generate power supply signals and selectively provide the power supply signals to the waste incineration power station 01 and the power supply module 1.

[0057] The power generation module 6 is used to generate power supply signals to supplement the power generated by the waste incineration power station 01 in the integrated energy system, and to supply power to the waste incineration power station 01. Optionally, the power generation module 6 includes at least one of a photovoltaic power generation module and a wind power generation module, i.e. the power generation module 6 can generate power by using renewable energy, such as solar photovoltaic power generation or wind power generation. Exemplarily, the photovoltaic power generation module can include a plurality of photovoltaic panels and an inverter to generate direct current by absorbing solar radiation through the photovoltaic panels, and to convert the direct current into alternating current through the inverter to adapt to the power demand of the user end and the waste incineration power station 01. The photovoltaic power generation module is suitable for areas with sufficient sunlight, such as urban rooftops, industrial parks or desert photovoltaic power stations. The wind power generation module can include a wind turbine and a generator to convert wind energy into mechanical energy through the wind turbine and convert the mechanical energy into alternating current through the generator, so as to adapt to the power demand of the user end and the waste incineration power station 01. The wind power generation module is suitable for areas rich in wind energy resources, such as coastal areas, wind farms or high wind speed areas around cities.

[0058] The power generation module 6 is connected with the power receiving end 014 of the waste incineration power station 01 and the power receiving end 11 of the power supply module 1 respectively, so that the power generation module 6 can selectively provide the electric energy converted from the renewable energy to the waste incineration power station 01 and the power supply module 1, thereby being capable of supplying power to the waste incineration power station 01 and reducing the dependence of the integrated energy system on the external power grid. At the same time, the power generation module 6 can also provide electric energy to users through the power supply module 1 to meet the residential, commercial or industrial power demand, thereby being capable of providing clean electric energy for users, realizing the supply of electric energy to users by taking municipal solid waste as the main energy source and taking solar energy, wind energy and other renewable energy as supplements, enhancing the power supply capacity of the integrated energy system, improving energy utilization efficiency and reducing carbon emissions.

[0059] Optionally, with reference back to Figure 2 The integrated energy system based on the waste incineration power station further comprises a power storage module 101; the power storage module 101 is arranged in the electric energy transmission path between the power generation module 6 and the power supply module 1; the controller 5 is connected with the power storage module 101, and the controller 5 is further configured to acquire the electric energy output power of the power generation module 6 and the electric energy output power of the waste incineration power station 01, and control the power storage module 101 to store or release electric energy according to the electric energy output power of the power generation module 6, the electric energy output power of the waste incineration power station 01 and the current electric energy demand load.

[0060] Specifically, the power storage module 101 can include lithium ion batteries or flow batteries, and specifically, the power storage module 101 is arranged in the electric energy transmission path between the power generation module 6 and the power supply module 1, so that the power storage module 101 can store the excess electric energy generated by the power generation module 6, and can release the stored electric energy to the power supply module 1 when the electric energy generated by the power generation module 6 and the waste incineration power station 01 is insufficient, so as to meet the current electric energy demand load of users. For example, the controller 5 can monitor the output voltage and output current of the generator in the waste incineration power station 01 in real time through the current sensor and the voltage sensor in the waste incineration power station 01, so as to acquire the current electric energy power output by the waste incineration power station 01. At the same time, the controller 5 can also monitor the electric energy power output by the power generation module 6 in real time through the current sensor and the voltage sensor in the power generation module 6. After the controller 5 acquires the current electric energy power output by the waste incineration power station 01 and the current electric energy power output by the power generation module 6 respectively, the controller 5 can further determine the sum of the current electric energy power output by the waste incineration power station 01 and the current electric energy power output by the power generation module 6 as a first current electric energy power, so as to compare the first current electric energy power with the current electric energy demand load acquired through the smart meter of the user end.

[0061] When the controller 5 determines that the first current electric energy power is greater than the current electric energy demand load, the controller 5 controls the power generation module 6 to deliver the excess electric energy to the power storage module 101 for storage. For example, when the controller 5 determines that the first current electric energy power is 82 kW and the current electric energy demand load is 66 kW, the controller 5 can send a control signal to the power generation module 6 to adjust the current direction of the inverter of the power generation module 6 through the control signal, so that the excess 16 kW of electric energy can be input to the power storage module 101. At the same time, the controller 5 can also monitor the state of charge of the power storage module 101 in real time through the battery management system (BMS) in the power storage module 101 to avoid overcharging. The controller 5 is also connected to the power storage module 101. When the controller 5 determines that the first current electric energy power is less than the current electric energy demand load, the controller 5 controls the power storage module 101 to release electric energy to the power supply module 1 to supplement the insufficient power supply. For example, when the controller 5 determines that the first current electric energy power is 84 kW and the current electric energy demand load of the user end 01 is 100 kW, the controller 5 can send a control signal to the BMS in the power storage module 101 to control the power storage module 101 to release 16 kW of stored electric energy to the power supply module 1. At the same time, the controller 5 can monitor the power supply of the power supply module 1 in real time through the voltage sensor and the current sensor in the power supply module 1 to ensure that the power supply meets the current electric energy demand load.

[0062] By coordinating the power storage module 101, the power generation module 6, and the waste incineration power plant 01 to provide electric energy for users, the comprehensive energy system is realized to use municipal solid waste as the main energy source and renewable energy such as solar energy and wind energy as a supplement to supply power to users, thereby enhancing the power supply capacity of the comprehensive energy system, improving energy utilization efficiency, and reducing carbon emissions. At the same time, by storing excess electric energy in the power storage module 101 and releasing electric energy when the power supply is insufficient, the comprehensive energy system can smooth the fluctuations in the current electric energy demand load of the user and the fluctuations in the current electric energy power output by the power generation module 6. For example, the power storage module 101 can release stored electric energy when the user's electric energy demand load is high during the day or when the current electric energy power output by the photovoltaic power generation module is insufficient at night, thereby ensuring the stable operation of the power supply module 1. In addition, the power storage module 101 can store excess electric energy when the user's electric energy demand load is low at night or when the current electric energy power output by the wind power generation module is high when the wind speed is high, thereby avoiding waste of electric energy and improving the efficiency and flexibility of the comprehensive energy system.

[0063] Optionally, with reference to Figure 2 the comprehensive energy system based on the waste incineration power plant further includes a heating module 7; a heat energy output port 71 of the heating module 7 is in communication with a heat energy input port 21 of the heat supply module 2; and the heating module 7 is configured to generate heat supply heat energy and selectively provide the heat supply heat energy to the heat supply module 2.

[0064] The heating module 7 is configured to generate heat energy for supplementing the heat energy generated by the waste incineration power plant 01 in the integrated energy system. Optionally, the heating module 7 comprises at least one of a light energy heating module and a wind energy heating module, i.e., the heating module 7 can utilize renewable energy for heating, such as solar energy or wind energy. For example, the light energy heating module can comprise a plurality of solar collectors and heat exchangers, so as to heat a working medium, such as water or heat-conducting oil, by absorbing solar radiation through the solar collectors, and transfer the heat of the high-temperature working medium in the solar collectors to hot water or steam in the heat supply module 2 through the heat exchangers, so as to provide heat energy for the heat supply module 2. The light energy heating module is suitable for application scenarios with sufficient sunlight, such as residential heating, industrial heat or agricultural greenhouse heating. The wind energy heating module can further comprise a wind turbine, a generator and a heat exchanger, so as to convert wind energy into mechanical energy through the wind turbine, convert the mechanical energy into electrical energy through the generator, and heat a working medium, such as water, through an electric resistance heater, and transfer the heat of the high-temperature working medium to hot water or steam in the heat supply module 2 through the heat exchanger, so as to provide heat energy for the heat supply module 2. The wind energy heating module is suitable for areas with abundant wind energy resources, such as coastal areas or high-wind-speed areas.

[0065] The heat energy output port 71 of the heating module 7 is in communication with the heat energy input port 21 of the heat supply module 2, so that after the heating module 7 converts renewable energy into heat energy, the heat energy can be delivered to the heat supply module 2, thereby providing heat energy for users through the heat supply module 2 to meet the heating, hot water or industrial heat demand of the users, thereby providing clean heat energy for the users, realizing the use of municipal solid waste as the main energy source and solar energy, wind energy and other renewable energy as a supplement to heat the users, enhancing the heating capacity of the integrated energy system, improving energy utilization efficiency and reducing carbon emissions.

[0066] Optionally, with reference back to Figure 2 , the integrated energy system based on the waste incineration power plant further comprises a heat storage module 201; the heat storage module 201 is arranged in the heat energy transmission path between the heating module 7 and the heat supply module 2; the controller 5 is further connected with the heat storage module 201, and the controller 5 is further configured to acquire the heat energy output power of the heating module 7 and the heat energy output power of the waste incineration power plant 01, and control the heat storage module 201 to store or release heat energy according to the heat energy output power of the heating module 7, the heat energy output power of the waste incineration power plant 01 and the current heat energy demand load.

[0067] The heat storage module 201 can specifically include a hot water storage tank, a phase change material heat storage device, and a heat exchanger, etc. Specifically, the heat storage module 201 is arranged in the heat energy transmission path between the heat production module 7 and the heat supply module 2, so that the heat storage module 201 can store the excess heat energy generated by the heat production module 7, and can release the stored heat energy to the heat supply module 2 when the heat energy generated by the heat production module 7 and the waste incineration power plant 01 is insufficient, so as to meet the current heat energy demand load. For example, the controller 5 can monitor the heat energy power output by the waste incineration power plant 01 in real time through the temperature sensor and the flow sensor in the waste incineration power plant 01. At the same time, the controller 5 can also monitor the heat energy power output by the heat production module 7 in real time through the temperature sensor and the flow sensor in the heat production module 7. After the controller 5 obtains the current heat energy power output by the waste incineration power plant 01 and the current heat energy power output by the heat production module 7 respectively, the controller 5 can further determine the sum of the current heat energy power output by the waste incineration power plant 01 and the current heat energy power output by the heat production module 7 as the first current heat energy power, so as to compare the size of the first current heat energy power and the current heat energy demand load obtained through the heat meter of the user end.

[0068] When the controller 5 determines that the first current heat energy power is greater than the current heat energy demand load, the controller 5 controls the heat production module 7 to transmit the excess heat energy to the heat storage module 201 for storage. For example, when the controller 5 determines that the first current heat energy power is 100 kW and the current heat energy demand load of the user end 01 is 60 kW, the controller 5 can control the heat production module 7 to store the excess 40 kW of heat energy in the hot water storage tank or the phase change material by opening the valve between the heat storage module 201 and the heat energy transmission path, such as the heat energy transmission pipeline. At the same time, the controller 5 can also monitor the heat supply amount of the heat supply module 2 in real time through the temperature sensor and the flow sensor in the heat supply module 2, so that the controller 5 can also control the valve to be closed when it is determined that the heat supply amount of the heat supply module 2 reaches the current heat energy demand load, so as to ensure that the heat energy output by the heat supply module 2 can meet the current heat energy demand load of the user. The controller 5 is also connected with the heat storage module 201. When the controller 5 determines that the first current heat energy power is less than the current heat energy demand load, the controller 5 controls the heat storage module 201 to release the stored heat energy to the heat supply module 2 to supplement the insufficient heat supply amount. For example, when the controller 5 determines that the first current heat energy power is 80 kW and the current heat energy demand load is 120 kW, the controller 5 can control the heat storage module 201 to release the stored 40 kW of heat energy to the heat supply module 2 by opening the valve between the heat storage module 201 and the heat energy transmission pipeline. At the same time, the controller 5 can monitor the heat supply amount of the heat supply module 2 in real time through the temperature sensor and the flow sensor in the heat supply module 2, so as to ensure that the heat supply amount meets the current heat energy demand load.

[0069] The heat energy is provided for the user by the heat storage module 201, the heat production module 7 and the waste incineration power station 01, the heat for the user is provided by taking the municipal solid waste as the main energy source and taking the renewable energy such as solar energy and wind energy as the supplement, the heat supply capacity of the comprehensive energy system is enhanced, the energy utilization efficiency is improved, and the carbon emission is reduced. At the same time, the excess heat energy is stored in the heat storage module 201 and the electric energy is released when the heat supply is insufficient, so that the comprehensive energy system can smooth the current heat energy demand load fluctuation of the user and the current heat energy power fluctuation of the output of the heat production module 7, for example, the heat storage module 201 can release the stored heat energy when the heat energy demand load of the user is high in winter or the current heat energy power of the output of the light energy heat production module is insufficient at night, and the stable operation of the heat supply module 2 is ensured. In addition, the heat storage module 201 can store the excess heat energy when the heat energy demand load of the user is low in summer or the current heat energy power of the output of the wind energy heat production module is high when the wind speed is high, so as to avoid the waste of heat energy and improve the efficiency and flexibility of the comprehensive energy system.

[0070] Optionally, with reference to Figure 2 The comprehensive energy system based on the waste incineration power station further comprises a recycling module 8; a residue recycling port 81 of the recycling module 8 is in communication with a residue releasing port 015 of the waste incineration power station 01, and the recycling module 8 is used for recycling the residue generated by the waste incineration power station 01; the recycling module 8 is further used for treating the residue and preparing energy storage materials; the energy storage materials include at least one of electric storage materials, heat storage materials and cold storage materials.

[0071] The residue can be understood as a solid by-product generated after the waste incineration power station 01 burns municipal solid waste, medical waste or municipal sludge, and the residue can include silicon dioxide, calcium oxide, aluminum oxide, heavy metal materials such as lead, cadmium and mercury, and harmful substances such as chlorides. The silicon dioxide in the residue can be used as a matrix of energy storage materials, and the heavy metal materials and harmful substances in the residue need to be removed to ensure the safety of the energy storage materials. Specifically, the recycling module 8 can treat the residue by physical, chemical and material processing processes, and prepare energy storage materials including at least one of electric storage materials, heat storage materials and cold storage materials, so as to be supplied to the electric storage module 101, the heat storage module 201 and the cold storage module 301 respectively.

[0072] Exemplarily, the recovery module 8 can pre-treat the residue to preliminarily screen out the recyclable components in the residue. For example, the large particles (metal, glass) in the residue can be separated from the fine particles by a vibrating screen or an air separation device, and the metal particles such as iron and aluminum in the residue can be removed by magnetic separation, so that a residue mainly composed of silica particles can be obtained. The residue will then be further purified to remove harmful substances such as heavy metals and chlorides in the residue, retaining usable components such as silica. For example, the residue can be washed with water or an acidic solution (dilute hydrochloric acid, nitric acid) to dissolve chlorides and some heavy metal salts, and the residue can be calcined to volatilize residual organic matter and some low-boiling heavy metals, and retain high-temperature stable components such as silica and calcium oxide, so that a high-purity silica residue can be obtained, and the silica residue can be used as an energy storage material matrix.

[0073] By adding additives to the silica matrix, electricity storage materials, heat storage materials and cold storage materials can be prepared. For example, silica can be mixed with activated carbon and graphite in proportion and spray dried or hot pressed to prepare a porous electrode material. The electrode material can be used in the lithium-ion battery in the electricity storage module 101, and can be used as an electricity storage material to store excess electricity or release electricity to supplement the power supply; silica can be mixed with paraffin and a composite phase change material can be prepared by a melting method. The phase change material can be used in the hot water storage tank in the heat storage module 201, and can be used as a heat storage material to store excess heat energy or release heat energy to supplement the heating supply; silica can be mixed with hydrated salt and a composite phase change material can be prepared by an impregnation method. The phase change material can be used in the cold water storage tank in the cold storage module 301, and can be used as a cold storage material to store excess cold energy or release cold energy to supplement the cooling supply.

[0074] By processing the waste residue in recycling module 8 and preparing energy storage materials, the waste incineration residue can be converted into energy storage materials that can be used in the electricity storage module 101, the heat storage module 201, and the cold storage module 301. This achieves resource utilization of solid waste and reduces the need for landfill. It also significantly reduces the cost of energy storage materials in the electricity storage module 101, the heat storage module 201, and the cold storage module 301, improving the cost-effectiveness and flexibility of the integrated energy system.

[0075] Based on the same inventive concept, the embodiment of the present invention also provides a waste incineration power plant, such as Figure 3As shown, the waste incineration power station 01 comprises: a thermal power unit 02, a plurality of energy conversion units 03, and the comprehensive energy system based on the waste incineration power station of the above embodiment; the flue gas output port 021 of the thermal power unit 02 is in communication with the flue gas input port 031 of the energy conversion module 03; the electric energy output port 032 of the energy conversion module 03 is electrically connected with the power supply module 1, the thermal energy output port 033 of the energy conversion module 03 is in communication with the thermal energy input port 21 of the heat supply module 2, and the energy conversion module 03 is used for obtaining the flue gas output by the flue gas output port 021 of the thermal power unit 02 and converting the flue gas into electric energy and thermal energy.

[0076] The thermal power unit 02 is used for burning renewable fuel and / or non-renewable fuel to generate flue gas and residue, and the energy conversion unit 03 is used for converting the high-temperature flue gas generated by the thermal power unit 02 into thermal energy and electric energy. The thermal power unit 02 can specifically include an incinerator, which can convert chemical energy in municipal solid waste into flue gas and residue through high-temperature combustion of household garbage, medical waste and municipal sludge. The flue gas output port 021 of the thermal power unit 02 is in communication with the flue gas input port 031 of the energy conversion module 03, so that the high-temperature flue gas generated by combustion in the thermal power unit 02 can be transported to the energy conversion unit 03, thereby enabling the high-temperature flue gas to be converted into thermal energy and electric energy by the energy conversion unit 03.

[0077] The energy conversion unit 03 can specifically include a boiler, a steam turbine and a generator. The boiler can convert the high-temperature flue gas into high-temperature high-pressure steam and hot water, which can be transported to the thermal energy input port 21 of the heat supply module 2 through the thermal energy output port 033, so as to be able to transport thermal energy to the heat supply module 2. At the same time, the high-temperature high-pressure steam can drive the steam turbine to rotate to generate mechanical energy, and the generator can convert the mechanical energy into electric energy and transport the electric energy to the power supply module 1 through the electric energy output port 032, so as to be able to transport electric energy to the power supply module 1. In addition, the low-temperature flue gas generated by combustion in the thermal power unit 02 can be transported to the cold energy generation module 4 to use the flue gas as the driving force for generating cold energy. The residue can be further processed and recycled by the recycling module 8. By burning household garbage, medical waste and municipal sludge in the thermal power unit 02, organic pollutants can be decomposed, and municipal solid waste can be converted into electric energy, thermal energy and cold energy driving force by the plurality of energy conversion units 03, realizing the energy utilization of municipal solid waste, reducing the landfill demand and saving land resources.

[0078] Therefore, the waste incineration power station provided by the embodiment has the structure and working of the comprehensive energy system based on the waste incineration power station of the above embodiment, and can achieve the effects of the comprehensive energy system based on the waste incineration power station of the above embodiment. The same parts can refer to the description above, which will not be repeated here.

[0079] It should be understood that the various forms of flow shown above can be used to reorder, add, or remove steps. For example, the steps described in the present disclosure can be performed in parallel, in series, or in a different order, as long as the desired results of the technology disclosed herein are achieved, which is not limited herein.

[0080] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated energy system based on a waste incineration power plant, characterized in that: include: Power supply module, heating module, cooling module, cold energy generation module and controller; The power supply module is electrically connected to the power supply end of the waste incineration power station, and the power supply module is used to obtain and transmit the electric energy generated by the waste incineration power station; The heat energy input port of the heating module is connected to the heat energy output port of the waste incineration power station, and the heating module is used to obtain and transmit the heat energy output by the heat energy output port of the waste incineration power station; The flue gas input port of the cold energy generation module is connected to the flue gas output port of the waste incineration power plant. The cold energy generation module is used to obtain the flue gas output from the flue gas output port of the waste incineration power plant and generate cold energy under the drive of the flue gas; The cold energy input port of the cooling module is connected to the cold energy output port of the cold energy generating module, and the cooling module is used to obtain and transmit the cold energy output from the cold energy output port of the cold energy generating module; The controller is respectively connected to the power supply module, the heating module, the cooling module and the cold energy generation module; the controller is used to obtain the user's demand load in real time, and control the working status of the power supply module, the heating module, the cold energy generation module and the cooling module according to the current demand load.

2. The integrated energy system based on a waste incineration power plant according to claim 1 is characterized in that: The cold energy generation module includes a heat pump and a cooling pipeline; The flue gas outlet of the waste incineration power plant is connected to the flue gas inlet of the heat pump, so that the heat pump generates cold energy under the drive of the flue gas; the flue gas is discharged through the flue gas outlet of the heat pump; The cold energy output port of the heat pump is connected to the cold energy input port of the cooling pipeline, and the cold energy output port of the cooling pipeline is connected to the cold energy input port of the cooling module. The cooling pipeline is used to transmit the cold energy generated by the heat pump to the cold energy input port of the cooling module.

3. The integrated energy system based on a waste incineration power plant according to claim 1 is characterized in that: Also includes: Cold storage module; The cold storage module is arranged in the cold energy transmission path between the cold energy generation module and the cold supply module; The controller is also connected to the cold storage module, and is further used to obtain the cold energy output power of the cold energy generating module, and control the cold storage module to store or release cold energy according to the cold energy output power and the current cold energy demand load.

4. The integrated energy system based on a waste incineration power plant according to claim 1 is characterized in that: Also includes: Power generation module; The power generation module is electrically connected to the power receiving end of the waste incineration power plant and the power receiving end of the power supply module respectively. The power generation module is used to generate a power supply signal and selectively provide the power supply signal to the waste incineration power plant and the power supply module.

5. The integrated energy system based on waste incineration power plant according to claim 4 is characterized in that: Also includes: Power storage module; The power storage module is provided in the power transmission path between the power generation module and the power supply module; The controller is also connected to the power storage module, and is also used to obtain the power output power of the power generation module and the power output power of the waste incineration power plant, and control the power storage module to store or release power according to the power output power of the power generation module, the power output power of the waste incineration power plant, and the current power demand load.

6. The integrated energy system based on a waste incineration power plant according to claim 4 is characterized in that: The power generation module includes at least one of a photovoltaic power generation module and a wind power generation module.

7. The integrated energy system based on a waste incineration power plant according to claim 1 is characterized in that: Also includes: Heating module; The heat energy output port of the heating module is communicated with the heat energy input port of the heat supply module. The heating module is used to generate heat energy for heat supply and selectively provide the heat energy for heat supply to the heat supply module.

8. The integrated energy system based on a waste incineration power plant according to claim 7 is characterized in that: Also includes: Thermal storage module; The heat storage module is provided in the heat energy transmission path between the heating module and the heat supply module; The controller is also connected to the heat storage module, and is further used to obtain the heat energy output power of the heating module and the heat energy output power of the waste incineration power plant, and control the heat storage module to store or release heat energy according to the heat energy output power of the heating module, the heat energy output power of the waste incineration power plant and the current heat energy demand load.

9. The integrated energy system based on a waste incineration power plant according to claim 7, characterized in that: The heating module includes at least one of a solar heating module and a wind heating module.

10. The integrated energy system based on waste incineration power plant according to claim 2, characterized in that: Also includes: Recycling module; The residue recovery port of the recovery module is connected to the residue release port of the waste incineration power plant, and the recovery module is used to recover the residue generated by the waste incineration power plant; The recovery module is also used to process the residue and prepare energy storage materials; The energy storage material includes at least one of an electricity storage material, a heat storage material, and a cold storage material.

11. A waste incineration power plant, characterized in that: include: A thermal power unit, a plurality of energy conversion modules, and an integrated energy system based on a waste incineration power plant as claimed in any one of claims 1 to 10; The flue gas outlet of the thermal power unit is connected to the flue gas inlet of the energy conversion module; The electric energy output port of the energy conversion module is electrically connected to the power supply module, and the thermal energy output port of the energy conversion module is connected to the thermal energy input port of the heating module. The energy conversion module is used to obtain the flue gas output from the flue gas output port of the thermal power unit and convert the flue gas into electrical energy and thermal energy.

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