A zero-carbon industrial park resource recycling system and method integrating source, grid, load and storage

Abstract

This invention belongs to the field of zero-carbon industrial park technology and discloses an integrated source-grid-load-storage resource recycling system and method for zero-carbon industrial parks. The system includes a coordinated system of weather sensors, a rainwater power generation unit, a wastewater power generation unit, a generator set, an energy storage unit, a sludge tank, and an oil collection tank. The weather sensors and rainwater power generation unit are located on the top floor of the building, the wastewater power generation unit is located in an independent space on each floor, and the generator set, energy storage unit, sludge tank, and oil collection tank are all located on the ground floor. This invention effectively enables the recycling of multiple resources and promotes the construction of zero-carbon industrial parks.

Description

Technical Field

[0001] This invention relates to the field of zero-carbon industrial park technology, specifically to a zero-carbon industrial park resource recycling system and method integrating source, grid, load, and storage. Background Technology

[0002] Zero-carbon industrial parks are modern industrial parks that offset the total amount of carbon dioxide emissions generated through clean technology support, carbon recovery technology, energy storage and exchange, etc., in order to achieve "zero emissions" of carbon elements.

[0003] Electricity is the energy foundation for the normal operation of modern industrial parks, and how to provide clean electricity is a key focus in the construction of zero-carbon parks. While existing technologies include solutions for using rainwater to generate electricity as a source of clean energy—for example, patent application number 202211728089.4—provides a system for collecting rainwater from building roofs and generating electricity; this system improves the rainwater collection structure to increase the collection rate and increases the rainwater pressure to enhance power generation efficiency.

[0004] However, as disclosed in the existing technologies, these technologies focus on improving the efficiency of rainwater power generation. While using rainwater as a power source for efficient power generation ensures the cleanliness of the electricity and avoids carbon dioxide emissions, it fails to consider that creating a zero-carbon park involves more than just cleaning the power source itself. It also requires offsetting carbon emissions from other sources to achieve overall zero-carbon emissions for the entire park. Therefore, existing rainwater power generation solutions cannot effectively achieve the goal of zero carbon emissions when applied to the construction of zero-carbon parks. Summary of the Invention

[0005] The purpose of this invention is to provide a zero-carbon park resource recycling system and method that integrates source, grid, load and storage to solve the technical problem that current rainwater power generation schemes cannot be applied to the construction of zero-carbon parks.

[0006] To achieve the above objectives, the present invention proposes the following technical solution:

[0007] Firstly, this technical solution provides an integrated zero-carbon industrial park resource recycling system encompassing source, grid, load, and storage, including:

[0008] The rainwater power generation unit includes a rainwater storage tank with an inclined bottom. One end of the first miscellaneous pipe is connected to the lower side of the bottom of the rainwater storage tank, and the other end is connected to the impurity tank. A filter is embedded in the rainwater inlet of the inlet pipe, and the rainwater inlet is simultaneously connected to the external environment and the higher side of the bottom of the rainwater storage tank. A first solenoid valve is installed between the rainwater inlet and the external environment, and a second solenoid valve is installed between the rainwater inlet and the rainwater storage tank.

[0009] The wastewater power generation unit is located in an independent space on each floor. A grit chamber, a water treatment tank, and a water storage and regulating tank are sequentially connected. One end of a wastewater pipe is connected to a domestic wastewater source, and the other end is connected to the grit chamber. One end of a constant flow pipe and a regulating pipe are connected to the upper and lower parts of the water storage and regulating tank, respectively, and the other end is connected to the inlet pipe. The pipe between the constant flow pipe inlet and the regulating pipe inlet in the inlet pipe is a hydraulic buffer pipe. The grit chamber includes a conical bottom. One end of a second miscellaneous pipe is connected to the cone top of the grit chamber, the bottom of the water treatment tank, and the bottom of the water storage and regulating tank, respectively, and the other end is connected to the impurity tank. The retractable end of an oil suction pipe extends into the grit chamber, and the other end is connected to an oil collection tank. A level sensor communicating with the retractable end is installed inside the grit chamber. A first flow monitor is installed at the hydraulic buffer pipe, a third solenoid valve at the constant flow pipe, and a fourth solenoid valve at the regulating pipe. Both the oil collection tank and the impurity tank are connected to a biomass treatment tank to obtain biofuel.

[0010] The generator set is connected to the energy storage unit, including an inlet end that is connected to the empty end of the inlet pipe and a outlet end that is connected to the municipal drainage pipe; the inlet end is equipped with a second flow monitor.

[0011] The first flow monitor, the second flow monitor, the meteorological sensor, and the rainfall monitor are all simultaneously connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve.

[0012] Furthermore, a detachable treatment module is submerged in the water treatment tank; the treatment module includes an activated carbon layer and an acid-base neutralization layer arranged alternately in the longitudinal direction.

[0013] Furthermore, the sedimentation tank is equipped with oil baffles arranged longitudinally at intervals, and each oil baffle has a through hole at the junction with the bottom of the sedimentation tank.

[0014] Furthermore, it includes photovoltaic panels, which are installed on the top floor of the building and electrically connected to the energy storage unit.

[0015] Furthermore, the grit separator, the water treatment tank, and the water storage and regulating tank are arranged in sequence and connected to each other. The grit separator and the water treatment tank are connected at the bottom, and the water treatment tank and the water storage and regulating tank are connected at the top.

[0016] Furthermore, a fifth solenoid valve is installed at the end of the second row of miscellaneous pipes that connects to the sedimentation tank, water treatment tank, and water storage regulating tank; impurity monitors are installed at the bottom of the sedimentation tank, water treatment tank, and water storage regulating tank; each impurity monitor is connected to each fifth solenoid valve in a one-to-one communication manner.

[0017] Secondly, this technical solution provides a method for resource recycling in a zero-carbon industrial park that integrates source, grid, load, and storage, including:

[0018] When the weather sensor determines that there is no rainfall, the first, second, and fourth solenoid valves are closed simultaneously, and the third solenoid valve is opened so that the water in each water storage regulating tank enters the water inlet pipe and generator set in sequence through the flow pipe to generate electricity, and is discharged through the municipal drainage pipe.

[0019] When rainfall is detected by meteorological sensors, and the rainfall is also detected by the rainfall monitor, if the rainfall is less than the first rainfall threshold and the cumulative rainfall is less than the first cumulative threshold, power generation is based on the water flowing through each constant flow pipe, and the rainwater storage tank is closed to prevent rainwater from entering. If the rainfall is between the first and second rainfall thresholds and the cumulative rainfall is between the first and second cumulative thresholds, the first and third solenoid valves are opened simultaneously, and the second and fourth solenoid valves are closed simultaneously to generate power based on the water flowing through each constant flow pipe and external rainfall. If the rainfall is greater than the second rainfall threshold and the cumulative rainfall is greater than the second cumulative threshold, the first solenoid valve is opened, and the second, third, and fourth solenoid valves are closed simultaneously to generate power based on external rainfall.

[0020] During the power generation process, when it is determined that the power generation is based on the water flowing through each constant flow pipe, if it is determined that the second real-time flow of the second flow monitor is less than the preset flow, the first real-time flow of each first flow monitor is obtained, and the corresponding fourth solenoid valves are opened sequentially from high to low until the second real-time flow is not less than the preset flow.

[0021] If all fourth solenoid valves are open and the second real-time flow rate is less than the preset flow rate, continue to open the second solenoid valve and adjust its opening until the second real-time flow rate is not less than the preset flow rate.

[0022] Furthermore, including:

[0023] During the power generation process, if it is determined that the power generation is based solely on external rainwater and the first real-time flow rate is greater than the preset flow rate, the sixth solenoid valve between the inlet pipe and the municipal rainwater pipe is opened and its opening degree is adjusted until the first real-time flow rate is not greater than the preset flow rate.

[0024] Furthermore, including:

[0025] If the actual water level in any water storage regulating tank is higher than the preset water level, the seventh solenoid valve between the corresponding constant flow pipe and the municipal rainwater pipe is opened and its opening degree is adjusted until the actual water level is not higher than the preset water level.

[0026] Furthermore, including:

[0027] When meteorological sensors determine that there is no rainfall, the angle of the photovoltaic panels is adjusted according to the solar azimuth angle to generate electricity.

[0028] Photovoltaic electricity is stored in the energy storage unit.

[0029] Beneficial effects:

[0030] As can be seen from the above technical solutions, the technical solution of the present invention provides a zero-carbon park resource recycling system integrating source, grid, load and storage, so as to meet the effective recycling of water resources and thus promote the construction of zero-carbon parks.

[0031] This technical solution considers both rainwater and domestic wastewater as power sources for hydropower generation. Firstly, the upstream water treatment process not only extends the lifespan of the power generation equipment but also reduces the difficulty and cost of subsequent water treatment, and the separated grease can be comprehensively utilized. Specifically, the upstream grit and grease trap separates most of the biomass residue and grease from the domestic wastewater, extending the lifespan of the hydropower equipment. The separated grease can also be processed into biofuel, reducing carbon emissions and facilitating resource recycling. The water used for power generation, after disinfection, can be reused for greening irrigation or directly fed into the municipal sewer system, reducing subsequent water treatment costs. Secondly, it comprehensively considers meteorological conditions, namely rainfall, cumulative rainfall, and inflow rate, to effectively complement rainwater and domestic wastewater power generation; it uses a linkage between monitors and controllers to dynamically optimize water quality treatment and power generation efficiency. Throughout the power generation process, domestic wastewater is the primary source, supplemented by rainwater, thereby achieving mutual offsetting of carbon emissions and carbon consumption within the park and ensuring sufficient clean hydropower generation.

[0032] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered part of the inventive subject matter of this disclosure, provided that such concepts do not contradict each other.

[0033] The foregoing and other aspects, embodiments, and features of the teachings of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0034] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0035] Figure 1 This is a structural diagram of the integrated source-grid-load-storage zero-carbon park resource recycling system described in this embodiment;

[0036] Figure 2This is a partial structural diagram of the wastewater power generation unit in this embodiment;

[0037] Figure 3 This is a schematic diagram of the structure of the baffle plate inside the sedimentation tank in this embodiment;

[0038] Figure 4 This is a schematic diagram of the baffle plate inside the sedimentation tank in this embodiment.

[0039] The attached diagram is labeled as follows: 1 is a meteorological sensor, 2 is a rainwater storage tank, 3 is the first drainage pipe, 4 is a filter, 5 is a rainwater monitor, 6 is an inlet pipe, 7 is a sedimentation and grease trap, 8 is a water treatment tank, 9 is a water storage and regulating tank, 10 is a constant flow pipe, 11 is a regulating pipe, 12 is the second drainage pipe, 13 is a wastewater pipe, 14 is an oil suction pipe, 15 is an oil collection tank, 16 is an impurity tank, 17 is a generator set, 18 is an energy storage unit, 19 is a municipal drainage pipe, 20 is an impurity monitor, 21 is a photovoltaic panel, 22 is a biomass treatment tank, 23 is a motor, 24 is a rope, 25 is a pulley; 6.1 is a hydraulic buffer pipe, 7.1 is an grease trap, and 8.1 is a treatment module. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this invention pertains.

[0041] The terms "first," "second," and similar words used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding "comprising" encompasses the features, wholes, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or sets thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] While existing technologies include rainwater-based power generation to achieve cleaner electricity supply, they are not effectively applicable to modern industrial parks to offset carbon emissions and consumption, thereby achieving the goal of zero-carbon construction for the entire park. Therefore, this embodiment aims to provide an integrated source-grid-load-storage zero-carbon industrial park resource recycling system to solve the aforementioned technical problems.

[0043] The following description, in conjunction with the accompanying drawings, details the integrated zero-carbon park resource recycling system based on the source-grid-load-storage model described in this embodiment.

[0044] Combination Figures 1-4 As shown, the system includes a weather sensor 1, a rainwater power generation unit, a wastewater power generation unit, a generator set 17, an energy storage unit 18, a sludge tank 16, and an oil collection tank 15 that cooperate with each other. The weather sensor 1 and the rainwater power generation unit are located on the top floor of the building, the wastewater power generation unit is located in each independent space on each floor of the building, and the generator set 17, the energy storage unit 18, the sludge tank 16, and the oil collection tank 15 are all located on the ground floor of the building.

[0045] The rainwater power generation unit includes a rainwater storage tank 2, a first drainage pipe 3, a filter 4, and a rainwater monitor 5. The rainwater storage tank 2 stores and balances rainwater flow. It has an inclined bottom. One end of the first drainage pipe 3 connects to the lower side of the bottom of the rainwater storage tank 2, and the other end connects to the impurity pool 16. This inclined design facilitates the smooth discharge of impurities from the rainwater storage tank 2, improving the cleanliness of the collected rainwater. A filter 4 is embedded at the rainwater inlet of the inlet pipe 6, which connects to both the external environment and the higher side of the bottom of the rainwater storage tank 2. The filter 4 is used to filter and remove larger particulate impurities. A first solenoid valve is installed between the rainwater inlet and the external environment, and a second solenoid valve is installed between the rainwater inlet and the rainwater storage tank 2. At this time, when the rainfall is relatively large, specifically when the immediate rainfall exceeds the second immediate rainfall threshold and the cumulative rainfall exceeds the second cumulative rainfall threshold, the first solenoid valve and the second solenoid valve can be opened simultaneously. On the one hand, the rainwater filtered by the filter 4 can directly enter the generator set 17 through the inlet pipe 6 to generate electricity; on the other hand, the surface runoff can also be filtered and collected into the rainwater storage tank 2 to quickly achieve rainwater storage.

[0046] Preferably, a seventh solenoid valve is provided at the first discharge pipe 3 to periodically open the connection path from the first discharge pipe 3 to the impurity pool 16. This allows impurities in the rainwater in the rainwater storage tank 2 to settle and be discharged in a concentrated manner, avoiding the consumption and waste of usable rainwater during the discharge process.

[0047] The wastewater power generation unit includes a sedimentation tank 7, a water treatment tank 8, a water storage and regulating tank 9, a constant flow pipe 10, and a regulating pipe 11, all connected in sequence. Specifically, one end of the wastewater pipe 13 is connected to a domestic wastewater source, and the other end is connected to the sedimentation tank 7. One end of the constant flow pipe 10 and the regulating pipe 11 are respectively connected to the upper and lower parts of the water storage and regulating tank 9, and the other end is connected to the inlet pipe 6. The pipe between the inlet of the constant flow pipe and the inlet of the regulating pipe in the inlet pipe is set as a hydraulic buffer pipe 6.1. The diameter of the hydraulic buffer pipe 6.1 is larger than the diameter of other parts of the inlet pipe 6, which is used to achieve sufficient mixing of water flow from different pipes and avoid sudden flow interruption from affecting the hydropower generation process. The sedimentation tank 7 and the water treatment tank 8 both include a conical bottom. The water storage and regulating tank 9 has an inclined bottom surface. One end of the second row of debris pipes is connected to the conical top of the sedimentation tank 7 and the water treatment tank 8, as well as the lower side of the bottom of the water storage and regulating tank 9, and the other end is connected to the debris pool. At this point, the slope design facilitates the rapid discharge of impurities collected within. Specifically, a fifth solenoid valve is installed at the end of the second row of impurity pipes 12 that connects to the sedimentation tank 7, water treatment tank 8, and water storage and regulating tank 9. Impurity monitors 20 are installed at the bottom of the sedimentation tank 7, water treatment tank 8, and water storage and regulating tank 9; each impurity monitor 20 is communicatively connected to each fifth solenoid valve. This allows for monitoring of impurities within these tanks using the impurity monitors 20, and the corresponding fifth solenoid valves can be opened to discharge impurities, preventing the direct discharge of usable wastewater into the impurity tank 16 when the valves are normally open or simultaneously open, thus avoiding wastewater waste. The retractable end of the oil suction pipe 14 extends into the sedimentation tank 7, and the other end connects to the oil collection tank 15. A level sensor communicating with the retractable end is installed inside the sedimentation tank 7. At this point, the length of the oil suction pipe 14 extending into the settling and grease trap 7 can be adjusted based on the liquid level sensing within the settling and grease trap 7 to ensure smooth extraction of grease and prevent it from adhering to the pipe wall of the settling and grease trap 7 or even flowing into the water treatment tank 8. As a preferred embodiment, considering the low-temperature solidification characteristics of animal fats, a heating plate is also embedded in the side wall of the settling and grease trap 7 to prevent the grease from solidifying and becoming impossible to extract, and further to prevent its adhesion to the side wall of the settling and grease trap 7. The grease and other impurities in the oil collection tank 15 and the impurity tank 16 are used to produce biofuel. Therefore, a biomass treatment tank 22 connected to them is also provided for pre-treatment during biofuel processing. A first flow monitor is installed at the hydraulic buffer pipe 6.1, a third solenoid valve is installed at the constant flow pipe 10, and a fourth solenoid valve is installed at the regulating pipe 11. The opening of the third and fourth solenoid valves can be adjusted according to the actual monitored flow rate to meet the actual power generation requirements.

[0048] In one specific implementation, a treatment module 8.1 is submerged within the water treatment tank 8. The treatment module 8.1 includes longitudinally alternating layers of activated carbon and acid-base neutralization layers to further adsorb impurities, neutralize pH, and purify wastewater. Considering the consumable nature of the treatment module 8.1, and to improve wastewater purification quality, it is designed to be detachable for easy replacement. Furthermore, a corresponding motor 23, rope 25, and pulley 24 are provided. The pulley 24 is mounted on the top of the corresponding independent space, and the rope 25 is wound around the pulley 24, with one end connected to the motor 23 and the other end connected to the treatment module 8.1. A monitoring device is installed in the water treatment tank 8. The monitoring device is connected to the back-end control terminal. When the effective substance remaining in the activated carbon layer and acid-base neutralization layer is lower than the remaining threshold, a feedback signal is sent to the back-end control terminal. At this time, the back-end control terminal will remind the personnel to replace the treatment module 8.1. After obtaining the personnel's confirmation of replacement signal, a hoisting command is sent to the motor 23 so that it drives the rope 25 to hoist the treatment module 8.1 out of the treatment tank 8.

[0049] Oil baffles 7.1 are longitudinally spaced in the sedimentation tank. To prevent the oil baffles 7.1 from blocking the water flow, through holes are provided at the junction of each oil baffle 7.1 and the bottom of the sedimentation tank 7, so that the wastewater after oil removal and sedimentation can smoothly enter the water treatment tank 8.

[0050] Meanwhile, to save system floor space and facilitate placement in independent spaces such as offices and laboratories, the grit separator 7, water treatment tank 8, and water storage and regulating tank 9 are arranged adjacently and connected in sequence. Furthermore, the grit separator 7 and the water treatment tank 8 are connected at the bottom to prevent floating grease from entering the water treatment tank 8; the water treatment tank 8 and the water storage and regulating tank 9 are connected at the top to ensure the cleanliness of the wastewater entering the water storage and regulating tank 9.

[0051] The generator set 17 is connected to the energy storage unit 18, including an inlet end connected to the spare end of the inlet pipe 6 and a outlet end connected to the municipal drainage pipe 19; the inlet end is equipped with a second flow monitor. Simultaneously, the first flow monitor, the second flow monitor, the meteorological sensor, and the rainfall monitor are all communicatively connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve. When the second flow monitor detects insufficient flow, the corresponding solenoid valve is opened and its opening degree is adjusted to regulate the flow into the generator set 17. At this time, the wastewater and rainwater after power generation, having undergone appropriate treatment, can be directly discharged into the municipal drainage pipe 19 to avoid pollution, and can also be used for greening irrigation, etc.

[0052] Meanwhile, in order to ensure the supply of clean power in high-power scenarios, a photovoltaic panel 21 is also installed. The photovoltaic panel 21 is located on the top floor of the building and is electrically connected to the energy storage unit 18.

[0053] In practical implementation, the energy storage unit 18 supplies power to all electrical equipment within the system. During rainwater treatment, rainwater from the roof enters the filter 4 through the rainwater inlet, where larger particles are removed before flowing into the rainwater storage tank 2. The rainwater storage tank 2 distributes rainwater evenly to the inlet pipe 6 according to the rainwater flow rate and subsequent treatment needs. During domestic wastewater treatment, domestic wastewater is discharged into the sedimentation and grease trap 7 through the wastewater pipe 13. Biomass residues settle at the bottom of the tank, while oil floats on the surface and is collected in the oil collection tank 15 through the oil suction pipe 14. The wastewater then enters the water treatment tank 8, where it is further purified by activated carbon adsorption and acid-base neutralizing agents. Impurities at the bottom of the tank are discharged into the impurity tank 16 for centralized treatment through the second discharge pipe 12. The treated water enters the water storage and regulation tank 9, which is divided into a constant flow pipe 10 and a regulating pipe 11. The constant flow pipe 10 is the channel for continuously replenishing the generator set 17 with domestic wastewater. When the second flow monitor detects insufficient flow velocity, it activates the regulating pipe 11 to replenish the inlet pipe. Specifically, the number of regulating pipes activated is determined based on the flow velocity to increase the flow rate. During the rainwater-domestic wastewater linkage regulation process, when the weather sensor 1 detects a sunny day, power generation mainly relies on domestic wastewater. The second flow monitor and each first flow monitor monitor the flow in real time. If the current flow is less than the minimum power generation flow threshold, the water in the rainwater storage tank 2 is used first to replenish the flow. If the water in the rainwater storage tank 2 is used up, the regulating pipe 11 of the domestic wastewater storage tank is activated to further replenish the flow to meet the flow requirements of the generator set 17. When the meteorological sensor 1 detects rain, the rainfall is monitored in real time by the rainfall monitor 5 to determine whether the current rainfall meets the hydropower generation flow rate. Based on the rainfall intensity and water demand, the system adopts a three-level linkage control strategy: Level I (light rain / initial rainfall), that is, when the rainfall is <10mm / h (i.e., the first rainfall threshold) and the cumulative rainfall is <30mm (i.e., the first cumulative threshold), the third solenoid valve corresponding to the constant flow pipe 10 is fully opened, and domestic wastewater is given priority to enter the generator set 17 after pretreatment; at the same time, the rainwater diversion device is started, and the first and second solenoid valves are closed at the same time, and the initial rainwater (containing high levels of pollutants) is directly discharged. Level II (Moderate / Stable Rainfall), i.e., rainfall of 10mm / h ≤ 25mm / h (i.e., the second immediate rainfall threshold) and cumulative rainfall of 30-100mm (i.e., the second cumulative threshold), the second solenoid valve at the rainwater storage tank 2 is adjusted as needed (initial opening 50%); mixed wastewater (rainwater + domestic wastewater) flows through the inlet pipe 6 simultaneously, maintaining a flow velocity ≥ 0.8m / s. Level III (Heavy Rain / Extreme Rainfall), i.e., rainfall > 25mm / h or a sudden increase of 50% in hourly rainfall intensity, closes the third solenoid valves corresponding to each normal flow pipe of domestic wastewater, and all wastewater is switched to the water storage regulating tank 9 for temporary storage; rainwater storage tank 2 is filled at full speed, prioritizing the use of rainwater for power generation; if the rainwater flow exceeds the limit, the emergency overflow pipe is activated to discharge into the municipal pipe network. During power generation and supply, the treated domestic wastewater or rainwater enters the generator set 17.The first and second flow monitors monitor water flow in real time to ensure a stable flow rate to drive the generator set 17 to operate efficiently. The generated electricity is stored in the energy storage unit 18. The energy storage unit 18 stores energy during low-load periods to ensure continuous system operation at night or when rainfall is insufficient. During the day, the photovoltaic panels 21 are used to generate electricity to power the electrical equipment inside the building (power supply priority: lighting > air conditioning > other electrical equipment). Excess photovoltaic power generated during the day, as well as electricity generated from domestic wastewater, is stored in the energy storage unit 18. At night or on rainy days, the generator set 17 is used to power the building. If the electrical load exceeds the power generation, the electricity stored in the energy storage unit 18 is used to supplement the power supply. During maintenance and management, the impurities in the sedimentation tank 7 and the water treatment tank 8 are cleaned regularly, and the consumption of activated carbon and acid-base neutralizing agents is checked and replaced promptly to ensure normal equipment operation and treatment effectiveness.

[0054] In summary, this system integrates the pretreatment of building wastewater and rainwater with drainage and power generation, effectively improving water resource utilization efficiency. It also solves the problem of unstable water flow for power generation caused by the spatiotemporal imbalance of rainwater and domestic wastewater. By directly reducing carbon emissions and optimizing carbon consumption, it achieves a reduction in building carbon emissions, demonstrating good environmental and economic value.

[0055] Based on the system described above, this embodiment also provides a method for resource recycling in a zero-carbon industrial park that integrates source, grid, load, and storage.

[0056] Specifically, the method includes the following steps:

[0057] Step S202: When the weather sensor determines that there is no rainfall, the first solenoid valve, the second solenoid valve and the fourth solenoid valve are closed simultaneously, and the third solenoid valve is opened so that the water in each water storage regulating tank enters the water inlet pipe and the generator set in sequence through the flow pipe to generate electricity, and is discharged through the municipal drainage pipe.

[0058] To ensure an adequate supply of clean energy, the following steps are also included:

[0059] Step S20202: When it is determined by meteorological sensors that there is no rainfall, adjust the angle of the photovoltaic panels according to the solar azimuth angle to generate electricity;

[0060] Step S20204: Store photovoltaic power in the energy storage unit.

[0061] Step S204: When rainfall is determined based on meteorological sensors, and the rainfall is determined based on the rainfall monitor, if the rainfall is less than the first rainfall threshold and the cumulative rainfall is less than the first cumulative threshold, power generation is based on the water flowing through each constant flow pipe, and the top cover of the rainwater storage tank is closed to prevent rainwater from entering; if the rainfall is determined to be between the first and second rainfall thresholds and the cumulative rainfall is determined to be between the first and second cumulative thresholds, the first and third solenoid valves are controlled to open simultaneously, and the second and fourth solenoid valves are controlled to close simultaneously, so as to generate power based on the water flowing through each constant flow pipe and external rainfall; if the rainfall is determined to be greater than the second rainfall threshold and the cumulative rainfall is greater than the second cumulative threshold, the first solenoid valve is controlled to open, and the second, third, and fourth solenoid valves are controlled to close simultaneously, so as to generate power based on external rainfall.

[0062] Step S208: During the power generation process, when it is determined that the power generation is based on the water flowing through each constant flow pipe, and when it is determined that the second real-time flow of the second flow monitor is less than the preset flow, the first real-time flow of each first flow monitor is obtained, and the corresponding fourth solenoid valves are opened sequentially from high to low until the second real-time flow is not less than the preset flow.

[0063] As a further implementation, step S208 also includes the following process to avoid excessive flow during heavy rain that could adversely affect the generator set:

[0064] Step S20802: During the power generation process, if it is determined that the first real-time flow rate is greater than the preset flow rate when power generation is based solely on external rainwater, the sixth solenoid valve between the inlet pipe and the municipal rainwater pipe is opened and its opening degree is adjusted until the first real-time flow rate is not greater than the preset flow rate.

[0065] Step S210: When all fourth solenoid valves are open and the second real-time flow rate is less than the preset flow rate, continue to open the second solenoid valve and adjust its opening until the second real-time flow rate is not less than the preset flow rate.

[0066] As a preferred embodiment, the following methods are also included to prevent overflow of the water storage regulating tank:

[0067] Step S302: When it is determined that the actual water level in any water storage regulating tank is higher than the preset water level, open the seventh solenoid valve between the corresponding constant flow pipe and the municipal rainwater pipe and adjust its opening until the actual water level is not higher than the preset water level.

[0068] Since the method is based on the system, it can effectively promote the successful construction of zero-carbon parks in practical applications.

[0069] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A zero-carbon industrial park resource recycling system integrating source, grid, load, and storage, characterized in that, include: The weather sensor and the rainwater power generation unit are located on the top floor of the building, the wastewater power generation unit is located in each independent space of each building floor, and the generator set, energy storage unit, impurity pool and oil collection pool are all located on the bottom floor of the building. The rainwater power generation unit includes a rainwater storage tank with an inclined bottom. One end of the first miscellaneous pipe is connected to the lower side of the bottom of the rainwater storage tank, and the other end is connected to the impurity tank. A filter is embedded in the rainwater inlet of the inlet pipe, and the rainwater inlet is simultaneously connected to the external environment and the higher side of the bottom of the rainwater storage tank. A first solenoid valve is installed between the rainwater inlet and the external environment, and a second solenoid valve is installed between the rainwater inlet and the rainwater storage tank. The wastewater power generation unit is located in an independent space on each floor. A grit chamber, a water treatment tank, and a water storage and regulating tank are sequentially connected and adjacent to each other. The grit chamber and the water treatment tank are connected at the bottom, and the water treatment tank and the water storage and regulating tank are connected at the top. One end of a wastewater pipe is connected to a domestic wastewater source, and the other end is connected to the grit chamber. One end of a constant flow pipe and a regulating pipe are connected to the upper and lower parts of the water storage and regulating tank, respectively, and the other end of both are connected to the inlet pipe. The pipe between the inlet of the constant flow pipe and the inlet of the regulating pipe in the inlet pipe is a hydraulic buffer pipe. The diameter of the hydraulic buffer pipe is larger than the diameter of other parts of the inlet pipe. Both the grit chamber and the water treatment tank have a conical bottom, and the water storage and regulating tank has an inclined bottom surface. One end of a second miscellaneous pipe is connected to the conical top of the grit chamber and the water treatment tank, and to the lower side of the bottom surface of the water storage and regulating tank. The other end is connected to the impurity tank; a detachable treatment module is submerged in the water treatment tank; the treatment module includes an activated carbon layer and an acid-base neutralization layer arranged alternately in the longitudinal direction; pulleys are installed on the top of the corresponding independent space, and ropes are wound around the pulleys, one end of which is connected to the motor and the other end of which is connected to the treatment module; a monitoring device is installed in the water treatment tank, which is connected to the background control terminal in communication. When the remaining amount of effective substance is detected to be lower than the remaining amount threshold, a feedback signal is sent to the background control terminal; the retractable end of the oil suction pipe extends into the sedimentation tank, and the other end is connected to the oil collection tank; a liquid level sensor is installed in the sedimentation tank, which is connected to the retractable end in communication; a first flow monitor is installed at the hydraulic buffer pipe, a third solenoid valve is installed at the constant flow pipe, and a fourth solenoid valve is installed at the regulating pipe; the oil collection tank and the impurity tank are both connected to the biomass treatment tank to obtain biofuel; The generator set is connected to the energy storage unit, including an inlet end that is connected to the empty end of the inlet pipe and a outlet end that is connected to the municipal drainage pipe; the inlet end is equipped with a second flow monitor. The first flow monitor, the second flow monitor, the meteorological sensor, and the rainfall monitor are all simultaneously connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve.

2. The integrated source-grid-load-storage zero-carbon industrial park resource recycling system according to claim 1, characterized in that, Oil baffles are longitudinally spaced inside the sedimentation tank, and each oil baffle has a through hole at the junction with the bottom of the sedimentation tank.

3. The integrated source-grid-load-storage zero-carbon industrial park resource recycling system according to claim 1, characterized in that, It includes a photovoltaic panel, which is installed on the top floor of the building and electrically connected to an energy storage unit.

4. The integrated source-grid-load-storage zero-carbon industrial park resource recycling system according to claim 1, characterized in that, The second row of miscellaneous pipes is equipped with a fifth solenoid valve at the end that connects to the sedimentation tank, water treatment tank, and water storage regulating tank; impurity monitors are installed at the bottom of the sedimentation tank, water treatment tank, and water storage regulating tank; each impurity monitor is connected to each fifth solenoid valve in a one-to-one communication manner.

5. A method for resource recycling in a zero-carbon industrial park integrating source, grid, load, and storage, based on the resource recycling system for a zero-carbon industrial park integrating source, grid, load, and storage as described in any one of claims 1 to 4, characterized in that, include: When the weather sensor determines that there is no rainfall, the first, second, and fourth solenoid valves are closed simultaneously, and the third solenoid valve is opened so that the water in each water storage regulating tank enters the water inlet pipe and generator set in sequence through the flow pipe to generate electricity, and is discharged through the municipal drainage pipe. When rainfall is detected by meteorological sensors, and the rainfall is also detected by the rainfall monitor, if the rainfall is less than the first rainfall threshold and the cumulative rainfall is less than the first cumulative threshold, power generation is based on the water flowing through each constant flow pipe, and the rainwater storage tank is closed to prevent rainwater from entering. If the rainfall is between the first and second rainfall thresholds and the cumulative rainfall is between the first and second cumulative thresholds, the first and third solenoid valves are opened simultaneously, and the second and fourth solenoid valves are closed simultaneously to generate power based on the water flowing through each constant flow pipe and external rainfall. If the rainfall is greater than the second rainfall threshold and the cumulative rainfall is greater than the second cumulative threshold, the first solenoid valve is opened, and the second, third, and fourth solenoid valves are closed simultaneously to generate power based on external rainfall. During the power generation process, when it is determined that the power generation is based on the water flowing through each constant flow pipe, if it is determined that the second real-time flow of the second flow monitor is less than the preset flow, the first real-time flow of each first flow monitor is obtained, and the corresponding fourth solenoid valves are opened sequentially from high to low until the second real-time flow is not less than the preset flow. If all fourth solenoid valves are open and the second real-time flow rate is less than the preset flow rate, continue to open the second solenoid valve and adjust its opening until the second real-time flow rate is not less than the preset flow rate.

6. The method for resource recycling in a zero-carbon industrial park integrating source, grid, load, and storage as described in claim 5, is characterized in that... include: During the power generation process, if it is determined that the power generation is based solely on external rainwater and the first real-time flow rate is greater than the preset flow rate, the sixth solenoid valve between the inlet pipe and the municipal rainwater pipe is opened and its opening degree is adjusted until the first real-time flow rate is not greater than the preset flow rate.

7. The method for resource recycling in a zero-carbon industrial park integrating source, grid, load, and storage as described in claim 6, is characterized in that... include: If the actual water level in any water storage regulating tank is higher than the preset water level, the seventh solenoid valve between the corresponding constant flow pipe and the municipal rainwater pipe is opened and its opening degree is adjusted until the actual water level is not higher than the preset water level.

8. The method for resource recycling in a zero-carbon industrial park integrating source, grid, load, and storage as described in claim 7, is characterized in that, include: When meteorological sensors determine that there is no rainfall, the angle of the photovoltaic panels is adjusted according to the solar azimuth angle to generate electricity. Photovoltaic electricity is stored in the energy storage unit.

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