Bioenergy and photovoltaic coupling power generation system
By coupling bioenergy with photovoltaic power generation systems, the problem of insufficient power supply in pastoral areas has been solved, enabling all-weather power supply and energy recycling, reducing energy loss and damage, and protecting the ecological environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-10
AI Technical Summary
The pastoral areas are rich in resources but lack power supply. Existing technologies are insufficient to effectively utilize bioenergy and photovoltaic energy to meet the all-weather electricity demand, and there are also problems of energy loss and depletion.
Design a power generation system that couples bioenergy and photovoltaics, including a bioenergy system, a gas tank, a heating device, a flash evaporation system, a water tank, an energy storage device, and a power generation device. Through the combination of a manure collection pond, a biogas generator, a flash evaporation system, an energy storage device, and a power generation device, the system achieves efficient utilization and energy cycling of multiple energy sources.
It has enabled uninterrupted power supply to pastoral areas around the clock, meeting the basic electricity needs of residents, protecting the ecological environment, reducing energy loss and waste, and conforming to the concept of green development.
Smart Images
Figure CN223986957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of power generation, specifically relates to a kind of power generation system of coupling bioenergy and photovoltaic. BACKGROUND
[0002] The pastoral area is superior in geographical location, and the terrain is flat. The sunshine time is relatively long, and there are abundant bioenergy resources. At the same time, the amount of waste is increasing year by year, which has caused great threat to the ecological environment and has seriously damaged the ecological balance. In order to achieve sustainable development, the development and utilization of bioenergy are focused on by people. Because all the life substances of biofuel can enter the biological cycle of the earth, the released carbon dioxide will be absorbed by plants and participate in the cycle of the earth, achieving zero emission. Therefore, it has great application prospect.
[0003] In order to make full use of limited resources and meet the power demand of pastoral residents during the day and at night, a power generation technology that fully utilizes bioenergy and photovoltaic energy is needed. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of power generation system of coupling bioenergy and photovoltaic.
[0005] The utility model is implemented by the following technical solutions: a kind of power generation system of coupling bioenergy and photovoltaic, which comprises a bioenergy system, a gas tank, a heating device, a flash evaporation power generation system, a water tank, an energy storage device and a power generation device.
[0006] The bioenergy system comprises a manure collection tank, a conveyor belt and a biogas generator. The discharge port of the manure collection tank is connected to the input end of the conveyor belt. The output end of the conveyor belt is connected to the feed inlet of the biogas generator. The exhaust port of the biogas generator is in communication with the inlet of the gas tank. The outlet of the gas tank is in communication with the fuel inlet of the heating device and the fuel inlet of the flash evaporation power generation system. The heating device is in contact with the water tank, and the water tank is wrapped outside the heating device. The water outlet of the water tank is in communication with the water inlet of the flash evaporation power generation system. The water outlet of the flash evaporation power generation system is in communication with the water tank. The power transmission end of the flash evaporation power generation system is electrically connected to the power input end of the energy storage device. The power transmission end of the power generation device is electrically connected to the power input end of the energy storage device.
[0007] Preferably, a feed inlet is formed in the top of the manure collection tank, and a feed check valve is arranged at the feed inlet. A discharge port is formed in the bottom of one side of the manure collection tank.
[0008] Preferably, the biogas generator has a feed inlet in the middle of one side, a stirrer is provided in the interior of the biogas generator along the vertical direction, a discharge port is provided at the bottom of the biogas generator, and an exhaust port is provided at the top of the biogas generator.
[0009] Preferably, a first filter plate and a second filter plate are provided at the exhaust port inside the biogas generator, wherein the first filter plate is a dehydrating agent plate and the second filter plate is a desulfurizing agent plate.
[0010] Preferably, the heating device includes a biogas pump and a burner, the inlet of the biogas pump is the fuel inlet of the heating device, and the outlet of the biogas pump is connected to the air inlet of the burner.
[0011] Preferably, the flash evaporation-electric system includes an evaporator and a steam turbine generator set; the water inlet of the evaporator is the water inlet of the flash evaporation-electric system, the fuel inlet of the evaporator is the fuel inlet of the flash evaporation-electric system; the steam outlet of the evaporator is connected to the air inlet of the steam turbine generator set, and the power transmission end of the steam turbine generator set is the power transmission end of the flash evaporation-electric system.
[0012] Preferably, the flash evaporation electrostatic system further includes a condenser, the outlet of the condenser being the outlet of the flash evaporation electrostatic system, the inlet of the condenser being connected to the outlet of the steam turbine generator set, and the outlet of the condenser being connected to the water tank.
[0013] Preferably, the energy storage device includes a lithium battery pack and a converter, wherein the power input terminal of the lithium battery pack is the power input terminal of the energy storage device, and the power output terminal of the lithium battery pack is electrically connected to the power input terminal of the converter.
[0014] Preferably, the power generation device includes a photovoltaic panel, a thermoelectric power generation panel, a water pump, a heat pipe, and a temperature controller; the heat pipe surrounds the photovoltaic panel and the thermoelectric power generation panel, and the inlet and outlet ends of the heat pipe are connected to the water tank; the water pump is installed on the heat pipe near the inlet end; the temperature controller is placed within the space formed by the surrounding heat pipe and is electrically connected to the water pump; the power transmission ends of the photovoltaic panel and the thermoelectric power generation panel are both power transmission ends of the power generation device.
[0015] Preferably, the power transmission end of the power generation device is electrically connected to the motor of the conveyor belt.
[0016] Advantages of this invention: This invention combines photovoltaic power generation, thermoelectric power generation, and bioenergy power generation into a single system through a water tank. It provides electricity to pastoral residents using environmentally friendly and clean renewable energy, achieving uninterrupted power supply throughout the day and meeting the basic electricity needs of herders. This aligns with my country's green development concept, protects the original ecological environment of the grasslands, and allows the energy generated by bioenergy and photovoltaics to circulate within the system, minimizing energy loss and waste and saving energy consumption. Attached image description:
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] The components in the attached diagram are labeled as follows: Bioenergy system 1, manure collection tank 1.1, feed check valve 1.2, conveyor belt 1.3, biogas generator 1.4, agitator 1.5, first filter plate 1.6, second filter plate 1.7, gas tank 2, heating device 3, flash evaporation system 4, evaporator 4.1, steam turbine generator set 4.2, condenser 4.3, water tank 5, safety valve 5.1, energy storage device 6, power generation device 7, photovoltaic power generation panel 7.1, thermoelectric power generation panel 7.2, water pump 7.3, heat pipe 7.4, temperature controller 7.5. Detailed implementation method:
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1 As shown, a power generation system coupling bioenergy and photovoltaics includes a bioenergy system 1, a gas tank 2, a heating device 3, a flash evaporation power generation system 4, a water tank 5, an energy storage device 6, and a power generation device 7.
[0022] The bioenergy system 1 includes a manure collection tank 1.1, a conveyor belt 1.3, and a biogas generator 1.4. The manure collection tank 1.1 has an inlet at its top, equipped with a one-way valve 1.2 to ensure a one-way flow and prevent biogas evaporation at other times. An outlet is located at the bottom of one side of the manure collection tank 1.1. The biogas generator 1.4 has an inlet in the middle of one side, a vertically aligned agitator 1.5 inside, a discharge port at its bottom, and an exhaust port at its top. A first filter plate 1.6 and a second filter plate 1.7 are located at the exhaust port inside the biogas generator 1.4. The first filter plate 1.6 is a dehydrating agent plate, and the second filter plate 1.7 is a desulfurizing agent plate. These plates ensure the purity of the biogas produced during fermentation.
[0023] The discharge port of the manure collection tank 1.1 is connected to the input end of the conveyor belt 1.3, and the output end of the conveyor belt 1.3 is connected to the inlet of the biogas generator 1.4. The raw materials in the manure collection tank 1.1 are sent to the biogas generator 1.4 for fermentation through the conveyor belt 1.3 to produce biogas.
[0024] The exhaust port of the biogas generator 1.4 is connected to the inlet of the gas cylinder 2, which stores biogas. The biogas can be used as fuel for the heating device 3 and the flash evaporation system 4. The outlet of the gas cylinder 2 is connected to the fuel inlet of the heating device 3 and the fuel inlet of the flash evaporation system 4, respectively. The heating device 3 includes a biogas pump and a burner. The inlet of the biogas pump is the fuel inlet of the heating device 3, and the outlet of the biogas pump is connected to the air inlet of the burner. The biogas is drawn into the burner by the biogas pump, sprayed out, and ignited. The heating device 3 is in contact with the water tank 5, and the water tank 5 is wrapped around the heating device 3. On the one hand, the water tank 5 provides a water source; on the other hand, the combustion of biogas by the heating device 3 heats the water stored in the water tank 5, preheating the water tank 5 and storing heat. A safety valve 5.1 is installed on the top of the water tank 5 to prevent damage to the water tank 5 due to excessive pressure. The outlet of the water tank 5 is connected to the flash evaporation system. The inlet of system 4 is connected to the flash evaporation power generation system 4, which includes an evaporator 4.1 and a steam turbine generator set 4.2. The inlet of the evaporator 4.1 is the inlet of the flash evaporation power generation system 4, and the fuel inlet of the evaporator 4.1 is the fuel inlet of the flash evaporation power generation system 4. The steam outlet of the evaporator 4.1 is connected to the air inlet of the steam turbine generator set 4.2, and the power transmission end of the steam turbine generator set 4.2 is the power transmission end of the flash evaporation power generation system 4, which uses steam to generate electricity through the steam turbine. Unit 4.2 converts thermal energy into mechanical energy and further into electrical energy, directly supplying electricity to residents in pastoral areas; the flash evaporation power generation system 4 also includes a condenser 4.3, the outlet of the condenser 4.3 is the outlet of the flash evaporation power generation system 4, the inlet of the condenser 4.3 is connected to the outlet of the turbine generator set 4.2, and the outlet of the condenser 4.3 is connected to the water tank 5. The condenser 4.3 is used to liquefy the water vapor from the turbine generator set 4.2 and return it to the water tank 5;
[0025] The transmission end of the flash electrostatic precipitator 4 is electrically connected to the input end of the energy storage device 6. The flash electrostatic precipitator 4 converts thermal energy into mechanical energy and then into electrical energy to directly supply electricity to residents in pastoral areas. The energy storage device 6 includes a lithium battery pack and a converter. The input end of the lithium battery pack is the input end of the energy storage device 6. The transmission end of the lithium battery pack is electrically connected to the input end of the converter. The energy storage device 6 is used to store excess electrical energy for use when the power supply is interrupted due to system damage or other uncontrollable factors.
[0026] The power generation device 7 includes a photovoltaic panel 7.1, a thermoelectric power generation panel 7.2, a water pump 7.3, a heat pipe 7.4, and a temperature controller 7.5. The heat pipe 7.4 surrounds the photovoltaic panel 7.1 and the thermoelectric power generation panel 7.2. Both the inlet and outlet ends of the heat pipe 7.4 are connected to the water tank 5. The water pump 7.3 is installed on the heat pipe 7.4 near the inlet end. The temperature controller 7.5 is placed within the space formed by the surrounding heat pipe 7.4 and is electrically connected to the water pump 7.3. The photovoltaic panel 7.1... The power transmission end of both the photovoltaic power generation device 7 and the thermoelectric power generation plate 7.2 are the power transmission ends of the power generation device 7. The power transmission end of the power generation device 7 is electrically connected to the power input end of the energy storage device 6. The power transmission end of the power generation device 7 is also electrically connected to the motor of the conveyor belt 1.3. During the day, the photovoltaic power generation plate 7.1 of the power generation device 7 supplies electricity to the pastoral residents. The excess electricity is sent to the energy storage device 6. The heat energy is stored in the water tank 5. The heat energy stored in the water tank 5 is used to supply electricity to the pastoral residents at night through the thermoelectric power generation plate 7.2 of the power generation device 7. The excess electricity is sent to the energy storage device 6.
[0027] Work process:
[0028] Photovoltaic power generation mode: During the day, when there is sufficient sunlight, the photovoltaic panels 7.1 generate electricity normally, directly supplying power to residents in the pastoral area. A portion of the electricity is sent to the motor of the conveyor belt 1.3 to ensure the normal operation of the conveyor belt 1.3, and the excess electricity is sent to the energy storage device 6. At the same time, during the power generation process, as the working time increases, a large amount of heat generated by energy loss accumulates in the power generation device 7. During the day, the water pump 7.3 is started manually. The water pump 7.3 circulates the water in the water tank 5 through the heat conduction pipe 7.4 to remove the heat accumulated in the heat conduction pipe 7.4 and preheat the water tank 5.
[0029] Thermoelectric power generation mode: In pastoral areas, the temperature difference between day and night is extreme. At night, there is a lack of sunlight and the temperature drops significantly. At this time, the photovoltaic panel 7.1 stops working, and the entire power generation device 7 operates at a low temperature. When the temperature controller 7.5 detects that the ambient temperature is below the set minimum value, the water pump 7.3 circulates water from the water tank 5 through the heat pipe 7.4, creating a temperature difference between the heat pipe 7.4 and the thermoelectric panel 7.2. The thermoelectric panel 7.2 then starts working, generating electricity to directly supply power to the pastoral residents. A portion of the electricity is sent to the motor of the conveyor belt 1.3 to ensure its normal operation, while excess electricity is sent to the energy storage device 6. As the thermoelectric panel 7.2 continues to operate, its temperature gradually increases. When the temperature controller 7.5 detects that the temperature has reached the set maximum value, it controls the water pump 7.3 to stop working, and the thermoelectric generator begins to automatically dissipate heat. The ambient temperature gradually decreases until it falls below the set minimum value, at which point the water pump 7.3 restarts. This process is repeated by controlling temperature changes, continuously generating electricity.
[0030] Bioenergy power generation mode: Manure from livestock such as cattle and sheep, as well as humans, is stored in manure collection tank 1.1. The raw materials in manure collection tank 1.1 are sent to biogas generator 1.4 for fermentation via conveyor belt 1.3. At the same time, agitator 1.5 is started to stir the raw materials, ensuring full contact between the raw materials and liquid desulfurizing agent. Fermentation produces biogas, which is filtered and then stored in gas tank 2. The biogas in gas tank 2 is transported through pipelines to the burner of heating device 3 as fuel to heat water in water tank 5. Another pipeline is transported to the evaporator 4.1 of flash evaporation power generation system 4 as fuel to provide energy for the evaporation of water vapor. The hot water in water tank 5 enters the evaporator 4.1 of flash evaporation power generation system 4 and turns into steam. The steam is used to generate electricity through steam turbine generator set 4.2, and the generated electricity is stored in energy storage device 6. The water vapor from steam turbine generator set 4.2 is liquefied through condenser 4.3 and flows back to water tank 5.
[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A power generation system coupling bioenergy with photovoltaics, characterized by, It comprises a bioenergy system, a gas tank, a heating device, a flash evaporation power generation system, a water tank, an energy storage device and a power generation device; The bioenergy system comprises a feces collecting pool, a conveyor belt and a biogas generator; the discharge port of the feces collecting pool is connected with the input end of the conveyor belt, the output end of the conveyor belt is connected with the feeding port of the biogas generator, the exhaust port of the biogas generator is communicated with the inlet of the gas tank, the outlet of the gas tank is communicated with the fuel inlet of the heating device and the fuel inlet of the flash evaporation power generation system respectively; the heating device is in contact with the water tank, and the water tank is wrapped outside the heating device, the water outlet of the water tank is communicated with the water inlet of the flash evaporation power generation system, and the water outlet of the flash evaporation power generation system is communicated with the water tank; the power transmission end of the flash evaporation power generation system is electrically connected with the power input end of the energy storage device; the power transmission end of the power generation device is electrically connected with the power input end of the energy storage device.
2. A system for generating electricity by coupling bioenergy and photovoltaics according to claim 1, characterized in that, The top of the feces collecting pool is provided with a feeding port, and a feeding check valve is arranged at the feeding port; the bottom of one side of the feces collecting pool is provided with a discharge port.
3. The system of claim 1, wherein the system further comprises a controller configured to control the operation of the system. The middle of one side of the biogas generator is provided with a feeding port, the inside of the biogas generator is provided with a stirrer in the vertical direction, the bottom of the biogas generator is provided with a discharge port, and the top of the biogas generator is provided with an exhaust port.
4. The system of claim 3, wherein the system further comprises a controller configured to control the operation of the system. The exhaust port in the inside of the biogas generator is provided with a first filter plate and a second filter plate, the first filter plate is a dehydrating agent plate, and the second filter plate is a desulfurizing agent plate.
5. The system of claim 1, wherein, The heating device comprises a biogas pump and a burner, the inlet of the biogas pump is the fuel inlet of the heating device, and the outlet of the biogas pump is connected with the air inlet of the burner.
6. The system of claim 1, wherein the system further comprises a controller configured to control the operation of the system. The flash evaporation power generation system comprises an evaporator and a steam turbine generator set; the water inlet of the evaporator is the water inlet of the flash evaporation power generation system, and the fuel inlet of the evaporator is the fuel inlet of the flash evaporation power generation system; the steam outlet of the evaporator is connected with the air inlet of the steam turbine generator set, and the power transmission end of the steam turbine generator set is the power transmission end of the flash evaporation power generation system.
7. A system for generating electricity from coupled bioenergy and photovoltaics according to claim 6, wherein, The flash evaporation power generation system further comprises a condenser, the water outlet of the condenser is the water outlet of the flash evaporation power generation system, the air inlet of the condenser is connected with the air outlet of the steam turbine generator set, and the water outlet of the condenser is communicated with the water tank.
8. The system of claim 1, wherein the system further comprises a controller configured to control the operation of the system. The energy storage device comprises a lithium battery pack and a current transformer, the power input end of the lithium battery pack is the power input end of the energy storage device, and the power transmission end of the lithium battery pack is electrically connected with the power input end of the current transformer.
9. The system of claim 1, wherein, The power generation device comprises a photovoltaic power generation panel, a thermoelectric power generation panel, a water pump, a heat pipe and a temperature controller; the heat pipe is wrapped around the outside of the photovoltaic power generation panel and the thermoelectric power generation panel, the water inlet end and the water outlet end of the heat pipe are communicated with the water tank, the water pump is installed on the heat pipe close to the water inlet end, the temperature controller is arranged in the space formed by the heat pipe, and the temperature controller is electrically connected with the water pump; the power transmission end of the photovoltaic power generation panel and the power transmission end of the thermoelectric power generation panel are the power transmission end of the power generation device.
10. The system of claim 1, wherein, The power transmission end of the power generation device is electrically connected with the motor of the conveyor belt.