Clean heating system and method suitable for northern rural areas

Abstract

The invention relates to the technical field of clean heating, and discloses a clean heating system and method suitable for northern rural areas, and the system comprises a clean heating mode judgment module which is used for determining a clean heating mode based on the geographic information of a central heating pipe network of a target area; the raw material processing module is used for executing a raw material processing instruction based on a clean heating mode for the biomass reserve raw material; the combustion heating module is used for conducting combustion heating on the biomass reserve raw materials through clean heating equipment in the clean heating mode; the heating carbon emission calculation module is used for quantifying the carbon dioxide emission reduction in the clean heating mode; and the clean heating optimization module is used for optimizing the heating cost based on the operation data of the clean heating equipment and the carbon dioxide emission reduction amount to obtain an optimal clean heating strategy. Efficient cyclic utilization of biomass resources is achieved, and the heating cost of northern rural areas is reduced.

Description

Technical Field

[0001] This invention relates to the field of clean heating technology, specifically to a clean heating system and method suitable for rural areas in northern China. Background Technology

[0002] Relying on coal-fired heating has resulted in persistently high regional carbon emissions. While coal-to-electricity and coal-to-gas conversions have shown initial success in reducing regional air pollutant emissions, they have simultaneously increased winter heating costs for rural residents. Northern rural areas urgently need to develop an economical, feasible, and relatively low-carbon environmentally friendly heating method tailored to local conditions. Summary of the Invention

[0003] This invention provides a clean heating system and method suitable for rural areas in northern China, in order to solve the problem of high heating costs associated with other clean heating models.

[0004] In a first aspect, the present invention provides a clean heating system suitable for rural areas in northern China, the system comprising: The clean heating mode identification module is used to obtain the geographical information of the centralized heating network in the target area and determine the clean heating mode based on the geographical information of the centralized heating network in the target area; among them, the clean heating modes include the straw baling direct combustion mode and the decentralized biomass briquette fuel heating mode; The raw material processing module is connected to the clean heating mode discrimination module. It is used to obtain the biomass reserve raw materials in the target raw material collection area and execute raw material processing instructions based on the clean heating mode for the biomass reserve raw materials. The combustion heating module is connected to the clean heating mode discrimination module and the raw material processing module respectively, and is used to burn and heat the biomass storage raw materials using clean heating equipment in clean heating mode. The heating carbon emission calculation module is used to quantify the carbon dioxide emission reduction under the clean heating mode; The clean heating optimization module is connected to the heating carbon emission calculation module. It is used to obtain the operating data of clean heating equipment, optimize heating costs based on the operating data of clean heating equipment and carbon dioxide emission reduction, and obtain the optimal clean heating strategy.

[0005] This invention provides a clean heating system suitable for rural areas in northern China. It addresses different clean heating modes by processing raw materials, utilizing clean heating equipment to burn biomass reserves for heating, quantifying carbon dioxide emission reductions under clean heating modes, and optimizing heating costs based on the operating data of the clean heating equipment and carbon dioxide emission reductions. By changing the coal-fired heating mode in rural northern China, this system achieves efficient recycling of biomass resources through the collection and processing of biomass reserves, thereby reducing heating costs in rural areas of northern China.

[0006] In one optional implementation, the clean heating mode determination module includes: The determination unit is used to determine the heating type of the target area based on the geographic information of the centralized heating network. The first determining unit is used to determine the clean heating mode by adopting the straw baling direct combustion mode if the heating type of the target area is centralized heating. The second determining unit is used to determine if the heating type of the target area is individual household heating, and the clean heating mode adopts the decentralized biomass briquette fuel heating mode.

[0007] This invention provides a clean heating system suitable for rural areas in northern China. It utilizes the geographical information of centralized heating networks to accurately classify heating types, and then sets different clean heating modes for different heating types, precisely matching heating needs, optimizing the allocation of clean heating resources, improving heating efficiency and environmental benefits, and realizing refined management of clean heating.

[0008] In one optional implementation, the raw material processing module includes: The first generation unit is used to generate a raw material inspection instruction if the clean heating mode adopts the straw baling and direct combustion mode; wherein, the raw material inspection instruction is used to inspect the biomass reserve raw materials and generate the raw material inspection results; The second generation unit is used to generate raw material transfer instructions if the clean heating mode adopts a decentralized biomass briquette fuel heating mode; wherein, the raw material transfer instructions are used to transport the biomass reserve raw materials to the target briquette fuel processing station and control the briquette fuel processing station to process the biomass reserve raw materials into biomass briquette fuel.

[0009] This invention provides a clean heating system suitable for rural areas in northern China. It processes raw materials according to different clean heating modes, so that straw baling direct combustion heating or decentralized biomass briquette fuel heating respectively meet the requirements of straw direct combustion or briquette fuel combustion.

[0010] In one alternative implementation, the combustion heating module includes: Straw direct combustion centralized heating equipment and decentralized biomass briquette fuel heating equipment; the straw direct combustion centralized heating equipment includes a straw baling direct combustion boiler, a heating pipe network, a flue gas purification device, and a waste heat recovery device; the straw baling direct combustion boiler is connected to the heating pipe network, the flue gas purification device, and the waste heat recovery device respectively; the decentralized biomass briquette fuel heating equipment includes an automatic feeding device, a decentralized biomass heating furnace, and a water heating device; the decentralized biomass heating furnace is connected to the automatic feeding device and the water heating device respectively.

[0011] This invention provides a clean heating system suitable for rural areas in northern China. By setting up a structure that combines centralized heating equipment for direct combustion of straw with decentralized biomass briquettes for heating, it achieves full combustion of biomass reserves and ensures the stable implementation of clean heating.

[0012] In one optional embodiment, the straw direct combustion centralized heating equipment further includes: The system includes a dry ash discharge device, a two-stage screening device, an ash silo passivation device, and a nutrient compounding device. The dry ash discharge device is located at the tail end of the straw baling direct-fired boiler. The two-stage screening device is located at the outlet of the dry ash discharge device. The ash silo passivation device is connected to the two-stage screening device. The nutrient compounding device is connected to the two-stage screening device.

[0013] This invention provides a clean heating system suitable for rural areas in northern China. Through a dry ash removal device, a two-stage screening device, an ash silo passivation device, and a nutrient compounding device, it achieves the purification and compliant emission of flue gas during centralized heating.

[0014] In one optional embodiment, the decentralized biomass briquetted fuel heating equipment further includes: A drawer-type ash collection box is installed at the bottom of the decentralized biomass heating furnace, and the drawer-type ash collection box contains a preset weight of biochar.

[0015] This invention provides a clean heating system suitable for rural areas in northern China. By using a drawer-type ash collection box and biochar, it enables the recycling of wood ash during the heating process, thereby reducing heating costs.

[0016] In one alternative implementation, the heating carbon emission calculation module includes: The acquisition unit is used to acquire carbon dioxide emissions from fossil fuel combustion and greenhouse gas emissions from straw briquette combustion under clean heating mode. The calculation unit is used to calculate the carbon dioxide emission reduction of direct combustion of straw for centralized heating and the carbon dioxide emission reduction of straw biomass briquettes for heating, based on the carbon dioxide emissions from fossil fuel combustion and the greenhouse gas emissions from straw briquettes combustion, respectively.

[0017] This invention provides a clean heating system suitable for rural areas in northern China. It accurately quantifies carbon dioxide emission reduction by utilizing the carbon dioxide emissions from fossil fuel combustion and the greenhouse gas emissions from straw briquette combustion for two clean heating modes, laying the foundation for subsequent optimization of clean heating.

[0018] In one optional implementation, the acquisition unit includes: The acquisition sub-unit is used to acquire the carbon dioxide emission factor, methane warming potential value, methane emission factor, nitrogen dioxide warming potential value, nitrogen dioxide emission factor, fossil fuel consumption, methane emission factor, nitrogen dioxide emission factor, and quantity of straw briquettes from heating equipment. The first calculation subunit is used to calculate the carbon dioxide emissions from fossil fuel combustion based on the carbon dioxide emission factor, methane warming potential, methane emission factor, nitrogen dioxide warming potential, nitrogen dioxide emission factor, and fossil fuel consumption. The second calculation subunit is used to calculate the greenhouse gas emissions generated by burning straw briquettes based on the methane warming potential, the methane emission factor of the heating equipment burning straw briquettes, the nitrogen dioxide warming potential, the nitrogen dioxide emission factor of the heating equipment burning straw briquettes, and the quantity of straw briquettes.

[0019] This invention provides a clean heating system suitable for rural areas in northern China. By calculating the carbon dioxide emissions from fossil fuel combustion and the greenhouse gas emissions from straw briquettes combustion, it directly reflects the environmental impact of straw briquettes and fossil fuels, and can then target environmental pollution reduction based on the emissions.

[0020] In one alternative implementation, it further includes: The clean heating development module, connected to the clean heating mode identification module, is used to configure heating implementation and management rules based on the clean heating mode.

[0021] This invention provides a clean heating system suitable for rural areas in northern China. By configuring heating implementation and management rules, the clean heating process is made more standardized, which is conducive to multi-department coordination during the clean heating process.

[0022] Secondly, the present invention provides a clean heating method suitable for rural areas in northern China, applied to the aforementioned clean heating system suitable for rural areas in northern China, the method comprising: The clean heating mode identification module obtains the geographic information of the centralized heating network in the target area, and determines the clean heating mode based on the geographic information of the centralized heating network in the target area; among them, the clean heating modes include the straw baling direct combustion mode and the decentralized biomass briquette fuel heating mode; The raw material processing module acquires biomass reserve raw materials in the target raw material collection area, and executes raw material processing instructions based on the clean heating mode for the biomass reserve raw materials. In the clean heating mode, the biomass storage raw materials are burned and heated through the combustion heating module using clean heating equipment. The carbon dioxide emission reduction under the clean heating mode is quantified through the heating carbon emission calculation module; The clean heating optimization module obtains the operating data of clean heating equipment, and optimizes the heating cost based on the operating data of clean heating equipment and carbon dioxide emission reduction to obtain the optimal clean heating strategy. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a structural block diagram of a clean heating system suitable for rural areas in northern China according to an embodiment of the present invention; Figure 2 This is a structural block diagram of a clean heating mode discrimination module according to an embodiment of the present invention; Figure 3 This is a structural block diagram of the raw material processing module according to an embodiment of the present invention; Figure 4 This is a structural block diagram of a combustion heating module according to an embodiment of the present invention; Figure 5 This is a structural block diagram of a straw direct combustion centralized heating equipment according to an embodiment of the present invention; Figure 6 This is a structural block diagram of a decentralized biomass pellet fuel heating device according to an embodiment of the present invention; Figure 7 This is a structural block diagram of a heating carbon emission calculation module according to an embodiment of the present invention; Figure 8 This is a structural block diagram of the acquisition unit according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the working process of a clean heating system suitable for rural areas in northern China according to an embodiment of the present invention. Figure 10 This is a schematic diagram of a biomass clean heating mode according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the first process of a clean heating method applicable to rural areas in northern China according to an embodiment of the present invention. Detailed Implementation

[0025] 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 embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It is understood that before using the technical solutions disclosed in the various embodiments of the present invention, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in the present invention and their authorization should be obtained in accordance with relevant laws and regulations through appropriate means.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Northern rural areas are relatively rich in biomass resources such as straw. How to achieve efficient recycling of biomass resources through collection and processing, while changing the coal-fired heating model, in order to reduce heating costs in northern rural areas is a key issue that urgently needs to be addressed.

[0029] This invention provides a clean heating system suitable for rural areas in northern China. The biomass heating method is determined based on the type of heating: for centralized heating areas, direct combustion of baled straw is used; for individual households, decentralized biomass briquettes are used. Both baled straw direct combustion and decentralized biomass briquette heating should meet the requirements for direct straw combustion or briquette combustion, respectively. Both systems should be implemented and operated using either an energy performance contracting model or a self-purchase model, respectively. Centralized direct straw combustion heating equipment and facilities consist of boilers, heating pipe networks, flue gas purification, and waste heat recovery systems, and can cover major heating areas such as township governments, rural communities, township schools, township hospitals, residential areas, family farms, and agricultural cooperatives. Decentralized biomass briquette heating is suitable for heating areas of 60-200 square meters. While providing automatic ignition and automatic filling functions for individual rural households, the system can also provide energy for winter heating and cooking activities through the configuration of biomass clean heating equipment and water heating systems. Straw direct combustion centralized heating and decentralized biomass briquette heating respectively achieve flue gas purification and the recycling of straw ash resources through the "dry ash discharge + two-stage screening + ash silo passivation + nutrient compounding" mode and the "drawer-type ash collection box + original flavor passivation" mode. Straw baling direct combustion heating is cheaper than coal heating and has certain application prospects in rural areas of northern China. Decentralized biomass briquette heating can reduce energy costs by promoting the conversion of fuel consumption into fuel volume and the off-peak purchase policy of biomass briquettes.

[0030] This embodiment provides a clean heating system suitable for rural areas in northern China, such as... Figure 1 As shown, it includes: The clean heating mode discrimination module 101 is used to obtain the geographical information of the centralized heating network in the target area and determine the clean heating mode based on the geographical information of the centralized heating network in the target area; among which, the clean heating modes include the straw baling direct combustion mode and the decentralized biomass briquette fuel heating mode.

[0031] Specifically, the geographic information of the centralized heating network in the target area includes the spatial distribution of the centralized heating network, such as the main heating pipes, branch pipes, heat exchange stations, valve wells, and pump stations; the heating service area covered by each heat exchange station or heating zone; and the spatial distribution data of various buildings in the target area, such as their geographical locations.

[0032] Furthermore, the heating type is determined by judging the straight-line distance between the boundary of the heating area and the nearest heating main or heat exchange station.

[0033] The raw material processing module 102 is connected to the clean heating mode discrimination module 101. It is used to obtain the biomass reserve raw materials in the target raw material collection area and execute raw material processing instructions based on the clean heating mode for the biomass reserve raw materials.

[0034] Specifically, based on the central coordinates of the target area, a raw material collection area with a radius of 20 kilometers is calculated and delineated; data on the planting area of ​​major crops, yield per unit area, straw coefficient, theoretical straw production, collectable coefficient, collectable amount, and other straw resource quantities, as well as straw morphology and quality data such as average moisture content, soil content, calorific value, ash content, and crushing and returning to the field ratio, are obtained within the raw material collection area for each natural year, and these data are identified as biomass reserve raw material data.

[0035] Furthermore, different raw material processing instructions are executed according to the determined clean heating mode.

[0036] The combustion heating module 103 is connected to the clean heating mode discrimination module 101 and the raw material processing module 102 respectively, and is used to burn and heat the biomass reserve raw materials using clean heating equipment in clean heating mode.

[0037] The heating carbon emission calculation module 104 is used to quantify the carbon dioxide emission reduction under the clean heating mode.

[0038] The clean heating optimization module 105 is connected to the heating carbon emission calculation module 104. It is used to obtain the operating data of the clean heating equipment, optimize the heating cost based on the operating data of the clean heating equipment and the carbon dioxide emission reduction, and obtain the optimal clean heating strategy.

[0039] Specifically, based on the built-in economic analysis model, cost assessment and strategy optimization are carried out for the two clean heating modes.

[0040] Furthermore, for the economic evaluation of centralized heating, operational data from the first clean heating mode were retrieved, including boiler thermal efficiency, annual operating hours, annual straw consumption, straw price at the plant, circulating water volume, power consumption and price of network pumps, pipeline heat loss rate, total heat transfer area and heat transfer coefficient of heat exchange stations, connected building area, average heat index during the heating season, number of days in the heating season and average daily operating time, staffing and annual labor costs, annual maintenance rate, original value and depreciation period of heating facilities, and other operational data.

[0041] Furthermore, based on the above operational data, the heating cost per unit area is calculated, where the heating cost = (annual clean fuel usage cost + annual electricity cost + annual labor, maintenance and depreciation costs) / total heating area. Generally, the heating cost is maintained at 20 yuan / ㎡. This result is compared with the pre-stored coal-fired heating cost data. If the clean heating cost is less than or equal to the coal-fired heating cost, the first clean heating mode scheme is implemented. If the clean heating cost is greater than the coal-fired heating cost, the replacement of the clean heating scheme is postponed by applying for subsidies, etc. At the same time, it is also necessary to compare the carbon dioxide emission reduction under the straw baling direct combustion mode with the emission reduction threshold. If the carbon dioxide emission reduction is less than the emission reduction threshold, the structure of the heating equipment is optimized.

[0042] Furthermore, for the second clean heating mode (i.e., decentralized biomass briquette heating mode), two cost optimization strategies are generated and recommended: Activating the "straw resource and biomass briquette conversion" trading model to encourage users to exchange raw materials for fuel; the trading model is as follows: 1 ton of standard briquette fuel (low calorific value 16.8 MJ / kg, moisture content ≤12%) is defined as 1 "standard heat unit (THU)"; farmers' straw is converted into effective heat based on measured calorific value, moisture content, and impurity rate, and the exchange ratio R = 1 THU / effective heat is given in real time; farmers input delivery coordinates and estimated straw tonnage at the terminal to generate a raw material order, and the processing station reverses the price to reach a contract; the processing station stores the corresponding pellets in the farmer's "fuel account," which can be withdrawn or transferred as needed, achieving zero or low cash acquisition of fuel; simultaneously, a "biomass briquette off-peak purchase" strategy instruction is generated and implemented to guide users to purchase during off-peak demand periods to reduce overall energy costs.

[0043] Furthermore, the carbon dioxide emission reduction corresponding to the decentralized biomass briquette fuel heating mode is compared with the emission reduction threshold. If the carbon dioxide emission reduction is less than the emission reduction threshold, the structure of the relevant heating equipment is optimized.

[0044] This embodiment provides a clean heating system suitable for rural areas in northern China. It processes raw materials for different clean heating modes, utilizes clean heating equipment to burn biomass reserves for heating, quantifies the carbon dioxide emission reduction under the clean heating mode, and optimizes heating costs based on the operating data of the clean heating equipment and the carbon dioxide emission reduction. By changing the coal-fired heating mode in rural northern China, and through the collection and processing of biomass reserves, it achieves efficient recycling of biomass resources and reduces heating costs in rural areas of northern China.

[0045] In some alternative implementations, such as Figure 2 As shown, the clean heating mode determination module 101 includes: The determination unit 1011 is used to determine the heating type of the target area based on the geographic information of the centralized heating network.

[0046] Specifically, if the straight-line distance between the boundary of the heating area and the nearest heating main or heat exchange station is ≤500 meters, the heating type is determined to be Type I (i.e., centralized heating type). Type I corresponds to centralized heating areas, including public buildings and centralized heating communities. If the straight-line distance between the boundary of the heating area and the nearest heating main or heat exchange station is >500 meters, the system determines the heating type to be Type II (i.e., individual household heating type). Type II corresponds to individual household heating for residents.

[0047] The first determining unit 1012 is used to determine the clean heating mode by adopting the straw baling direct combustion mode if the heating type of the target area is centralized heating.

[0048] Specifically, the heating type is determined to be centralized heating, and the first clean heating mode is determined and triggered. The first clean heating mode is the centralized heating mode of direct combustion of straw baling.

[0049] The second determining unit 1013 is used to determine the heating mode of the target area as a decentralized biomass briquette fuel heating mode if the heating type of the target area is the individual household heating type.

[0050] Specifically, the heating type is determined to be the individual household heating type, and the system determines and triggers the second clean heating mode, which is the decentralized biomass briquette fuel heating mode.

[0051] This embodiment provides a clean heating system suitable for rural areas in northern China. It utilizes the geographical information of the centralized heating network to accurately classify heating types, and then sets different clean heating modes for different heating types to precisely match heating needs, optimize the allocation of clean heating resources, improve heating efficiency and environmental benefits, and realize refined management of clean heating.

[0052] In some alternative implementations, such as Figure 3 As shown, the raw material processing module 102 includes: The first generation unit 1021 is used to generate a raw material inspection instruction if the clean heating mode adopts the straw baling and direct combustion mode; wherein, the raw material inspection instruction is used to inspect the biomass reserve raw materials and generate raw material inspection results.

[0053] Specifically, if the current mode is the first clean heating mode (i.e., the straw baling and direct combustion mode), the first raw material quality standard is generated, which includes: the raw material moisture content is less than 30% and the raw material soil content is less than 20%; the raw material pretreatment unit is controlled or instructed to inspect the biomass reserve raw materials to meet the first raw material quality standard.

[0054] The second generation unit 1022 is used to generate a raw material transfer instruction if the clean heating mode adopts a decentralized biomass briquette fuel heating mode; wherein, the raw material transfer instruction is used to transport the biomass reserve raw materials to the target briquette fuel processing station and control the briquette fuel processing station to process the biomass reserve raw materials into biomass briquette fuel.

[0055] Specifically, if the current mode is the second clean heating mode (i.e. decentralized biomass briquette fuel heating mode), a raw material transfer instruction is generated to transport the biomass reserve raw materials to the designated briquette fuel processing station and a processing instruction is generated to control the briquette fuel processing station to process the raw materials into biomass briquette fuel in a predetermined form, including pellets, blocks and rods.

[0056] This embodiment provides a clean heating system suitable for rural areas in northern China. The raw materials are processed separately for different clean heating modes, so that straw baling direct combustion heating or decentralized biomass briquette fuel heating respectively meet the requirements for straw direct combustion or briquette fuel combustion.

[0057] In some alternative implementations, such as Figure 4 As shown, the combustion heating module 103 includes: Straw direct combustion centralized heating equipment 1031 and decentralized biomass briquette fuel heating equipment 1032; the straw direct combustion centralized heating equipment 1031 includes a straw baling direct combustion boiler 10311, a heating pipe network 10312, a flue gas purification device 10313, and a waste heat recovery device 10314; the straw baling direct combustion boiler 10311 is connected to the heating pipe network 10312, the flue gas purification device 10313, and the waste heat recovery device 10314 respectively; the decentralized biomass briquette fuel heating equipment 1032 includes an automatic feeding device 10321, a decentralized biomass heating furnace 10322, and a water heating device 10323; the decentralized biomass heating furnace 10322 is connected to the automatic feeding device 10321 and the water heating device 10323 respectively.

[0058] Specifically, such as Figure 5 As shown, the straw direct combustion centralized heating equipment 1031 consists of a straw baling direct combustion boiler 10311, a heating pipe network 10312, a flue gas purification device 10313, and a waste heat recovery device 10314, etc., and can cover major heating areas such as township governments, rural communities, township schools, township hospitals, residential areas, family farms, and agricultural cooperatives.

[0059] Furthermore, the 10311 straw baled direct-fired boiler body adopts a 35t / h "water-cooled vibrating grate + high and low differential speed composite combustion" straw direct-fired boiler. The grate is used for segmented air supply and combined with SNCR (Selective Non-Catalytic Reduction) + SCR (Selective Catalytic Reduction) for denitrification, ensuring NOx (Nitrogen Oxides) ≤50 mg / m³. The 10312 heating network adopts Q235B (carbon structural steel) spiral submerged arc welded steel pipes, with D426×7 (outer diameter 426 mm, wall thickness 7 mm welded steel pipe) as the main pipe and D219×6 (outer diameter 219 mm, wall thickness 6 mm welded steel pipe) as the branch pipes. The insulation adopts "50 mm rigid polyurethane foam + Φ560 HDPE (High Density Polyethylene) outer protective pipe" as the whole prefabricated direct-buried structure with a thermal conductivity ≤0.028. W / (m·K), heat loss ≤0.8 W / m (130℃ operating condition); the flue gas purification device 10313 adopts a series connection of a first-stage "multi-tube cyclone + second-stage bag filter + third-stage wet electrostatic precipitator". The circulating water of the wet electrostatic precipitator and the spray water of the ash silo share the same sedimentation tank. After sedimentation, the supernatant is reused for wet ash removal, achieving "zero wastewater" discharge; the waste heat recovery device 10314 adds a "fluoroplastic low-temperature economizer" at the outlet of the bag filter, which reduces the flue gas temperature from 160℃ to 90℃. The recovered heat is used to preheat the centralized pipeline return water (40℃→70℃), which can reduce the boiler natural gas ignition consumption by 12%.

[0060] Furthermore, such as Figure 6 As shown, the decentralized biomass briquette fuel heating equipment 1032 includes an automatic feeding device 10321, a decentralized biomass heating furnace 10322, and a water heating device 10323. The decentralized biomass briquette fuel heating provides automatic ignition and automatic filling functions for rural individual households with a heating area of ​​60-200㎡. At the same time, it can realize the energy supply for winter heating and cooking activities through the configuration of biomass clean heating equipment and water heating system.

[0061] Furthermore, the decentralized biomass heating furnace 10322 has a rated thermal power of 12-24kW and features "feeding-combustion-heat exchange" functions. The combustion chamber adopts a "double-layer sleeve + secondary spiral turbulence" structure, with an excess air coefficient of 1.3→1.1 and a combustion efficiency of 93%. The water heating device 10323 has a built-in 6L expansion tank, a shielded pump, and a variable frequency fan. The outlet water temperature is controlled in a closed loop at 55-65℃ through an NTC (Negative Temperature Coefficient) sensor. The automatic feeding device 10321 has a built-in 20kg hopper and uses a motor + screw feeding mechanism. It can send a "feeding" reminder 12 hours in advance to avoid individual households having to temporarily use electric auxiliary heating when they run out of fuel at night.

[0062] This embodiment provides a clean heating system suitable for rural areas in northern China. By setting up a structure of centralized heating equipment for direct combustion of straw and decentralized biomass briquettes for heating, it achieves full combustion of biomass reserves and ensures the stable implementation of clean heating.

[0063] In some optional embodiments, the straw direct combustion centralized heating equipment 1031 further includes: The system includes a dry ash discharge device 10315, a two-stage screening device 10316, an ash silo passivation device 10317, and a nutrient compounding device 10318. The dry ash discharge device 10315 is located at the tail end of the straw baling direct-fired boiler 10311. The two-stage screening device 10316 is located at the outlet of the dry ash discharge device 10315. The ash silo passivation device 10317 is connected to the two-stage screening device 10316. The nutrient compounding device 10318 is connected to the two-stage screening device 10316.

[0064] Specifically, the straw direct combustion centralized heating system achieves flue gas purification and compliant emissions through a "dry ash removal + two-stage screening + ash silo passivation + nutrient compounding" model. The dry ash removal device 10315 has a combined conveyor system of "buried scraper + chain bucket" at the boiler tail end, mixing grate ash and dust collector fly ash at a 7:3 ratio with a moisture content ≤5%. In the two-stage screening device 10316, the ash first passes through a 5mm drum screen; large pieces (>5mm) are returned to the furnace for re-combustion, while fine ash enters a low-temperature slow cooling system of "drum cooling + cement kiln waste heat," reducing the temperature from 600℃ to 80℃ to prevent crystal phase transformation. This process leads to the loss of soluble potassium. The ash silo passivation device 10317 sprays 3% by mass of modified phosphogypsum into a sealed ash silo, utilizing the heat released by the hydration of free calcium oxide to lower the pH from 12 to 8, preventing seedling burn during application. The nutrient compounding device 10318 granulates the fertilizer in a twin-shaft paddle mixer at a ratio of ash: humic acid: trace elements = 100:15:2 to obtain "silicon-potassium-calcium" slow-release fertilizer. Finally, the "village collection-town transfer-county application" model is adopted, utilizing the existing loader and sealed truck in the centralized boiler room to transport fertilizer within a 15km radius to achieve local recycling of resources.

[0065] This embodiment provides a clean heating system suitable for rural areas in northern China. Through a dry ash removal device, a two-stage screening device, an ash silo passivation device, and a nutrient compounding device, it achieves the purification and compliant emission of flue gas during centralized heating.

[0066] In some alternative embodiments, the decentralized biomass briquetted fuel heating device 1032 further includes: A drawer-type ash collection box 10324 is installed at the bottom of the furnace of the decentralized biomass heating furnace 10322. The drawer-type ash collection box 10324 contains a preset weight of biochar.

[0067] Specifically, decentralized biomass briquette fuel heating adopts a "drawer-type ash collection box + original flavor passivation" mode to achieve the recycling of wood ash: On the one hand, the bottom of the decentralized biomass heating furnace 10322 is equipped with a 2.5L high-temperature resistant drawer-type ash collection box 10324, which can be pulled out to unload ash. The inner wall of the box is coated with a 0.3mm PTFE (Polytetrafluoroethylene) anti-sticking layer, and the moisture content of the ash residue is ≤3%, which is easy to spread directly; on the other hand, in-situ passivation technology is adopted, and 50g of biochar (500℃ low temperature hydrothermal char) is pre-spread in the drawer-type ash collection box 10324, which effectively adsorbs heavy metals (Cd, Pb) in the dust by utilizing its microporous structure.

[0068] This embodiment provides a clean heating system suitable for rural areas in northern China. By using a drawer-type ash collection box and biochar, it enables the recycling of wood ash during the heating process, thereby reducing heating costs.

[0069] In some alternative implementations, such as Figure 7 As shown, the heating carbon emission calculation module 104 includes: The acquisition unit 1041 is used to acquire carbon dioxide emissions from fossil fuel combustion and greenhouse gas emissions from straw briquette combustion under clean heating mode.

[0070] The calculation unit 1042 is used to calculate the carbon dioxide emission reduction of direct combustion of straw for centralized heating and the carbon dioxide emission reduction of straw biomass briquettes for heating, based on the carbon dioxide emissions from fossil fuel combustion and the greenhouse gas emissions from straw briquettes combustion, respectively.

[0071] Specifically, the carbon dioxide emission reduction of direct combustion of straw for centralized heating The calculation formula is as follows: = - ×11.21 / 13.41(1) in, Carbon dioxide emissions from burning fossil fuels This refers to the greenhouse gas emissions generated from the combustion of straw-based fuel.

[0072] Furthermore, the carbon dioxide emission reduction from heating with straw biomass briquettes The calculation formula is as follows: = - (2) This embodiment provides a clean heating system suitable for rural areas in northern China. It accurately quantifies carbon dioxide emission reduction by utilizing carbon dioxide emissions from fossil fuel combustion and greenhouse gas emissions from straw briquette combustion for two clean heating modes, laying the foundation for subsequent optimization of clean heating.

[0073] In some alternative implementations, such as Figure 8 As shown, the acquisition unit 1041 includes: The acquisition subunit 10411 is used to acquire the carbon dioxide emission factor, methane warming potential value, methane emission factor, nitrogen dioxide warming potential value, nitrogen dioxide emission factor, fossil fuel consumption, methane emission factor, nitrogen dioxide emission factor, and quantity of straw briquettes from heating equipment.

[0074] The first calculation subunit 10412 is used to calculate the carbon dioxide emissions from fossil fuel combustion based on the carbon dioxide emission factor, methane warming potential, methane emission factor, nitrogen dioxide warming potential, nitrogen dioxide emission factor, and fossil fuel consumption.

[0075] Specifically, carbon dioxide emissions from the combustion of fossil fuels The calculation formula is as follows: (3) in, Burning fossil fuels Emission factor (tons / TJ) for The warming potential value ( ), Burning fossil fuels Emission factor (tons / TJ) for The warming potential value ( ), Burning fossil fuels Emission factor (tons / TJ) This refers to fossil fuel consumption (TJ).

[0076] The second calculation subunit 10413 is used to calculate the greenhouse gas emissions generated by burning straw briquettes based on the methane warming potential value, the methane emission factor of the heating equipment burning straw briquettes, the nitrogen dioxide warming potential value, the nitrogen dioxide emission factor of the heating equipment burning straw briquettes, and the quantity of straw briquettes.

[0077] Specifically, greenhouse gas emissions from the combustion of straw pellet fuel The calculation formula is as follows: = ( × + × )× (4) in, For burning straw briquettes as fuel in heating equipment Emission factors ( ), For burning straw briquettes as fuel in heating equipment Emission factors ( ), The amount of straw briquettes used for burning in heating equipment for the implementation of project activities ( ).

[0078] This embodiment provides a clean heating system suitable for rural areas in northern China. By calculating the carbon dioxide emissions from fossil fuel combustion and the greenhouse gas emissions from straw briquettes combustion, it directly reflects the environmental impact of straw briquettes and fossil fuels, and can then target environmental pollution reduction based on the emissions.

[0079] In some alternative implementations, it also includes: The clean heating development module 106 is connected to the clean heating mode discrimination module 101 and is used to configure heating implementation and management rules based on the clean heating mode.

[0080] Specifically, based on the clean heating model, the corresponding implementation and management processes are linked and initiated: For the first clean heating model, the contract energy management process is linked and initiated, which includes generating project entrustment instructions to execute integrated investment, construction and operation operations through a third-party enterprise; For the second clean heating model, the individual household procurement process is linked and initiated, which includes generating equipment and fuel purchase guidance information for individual households to purchase decentralized biomass briquette stoves and biomass briquette fuel to meet their winter heating needs.

[0081] This embodiment provides a clean heating system suitable for rural areas in northern China. By configuring heating implementation and management rules, the clean heating process is made more standardized, which is conducive to multi-department coordination during the clean heating process.

[0082] The following specific embodiment illustrates the workflow of a clean heating system suitable for rural areas in northern China.

[0083] Example 1: like Figure 9-10 As shown, taking Town A as the research scope, the workflow of a clean heating system suitable for rural areas in northern China includes: S1. Identify the heating type of the area: Based on pre-set geographic information system data of the centralized heating network, determine the heating type of the target area. The geographic information system data of the centralized heating network includes the spatial distribution of the centralized heating network, such as the main heating pipes, branch pipes, heat exchange stations, valve wells, and pump stations; the heating service area covered by each heat exchange station or heating zone; and the spatial distribution data of various buildings in the target area, such as the geographical location of various buildings.

[0084] The heating type is determined by the straight-line distance from the boundary of the heating area to the nearest heating main or heat exchange station. If the distance is ≤500 meters, the system classifies the heating type as Type I, which includes centralized heating areas such as town governments, Jingfu residential areas, traffic police stations, and enterprises located in the town. If the distance is >500 meters, the system classifies the heating type as Type II, which corresponds to individual residential heating.

[0085] S2. Clarify the biomass heating method: In response to the determination of the heating type as the first type in S1, the system determines and triggers the first clean heating mode, which is a centralized heating mode for direct combustion of straw baling; In response to the determination of the heating type as the second type in S1, the system determines and triggers the second clean heating mode, which mainly serves 700 individual residential households, and the heating mode is a decentralized biomass briquette fuel heating mode.

[0086] S3. Determine biomass fuel supply requirements: Based on the center coordinates of the target area, calculate and delineate a raw material collection area with a radius of 20 kilometers; the system acquires data on the amount of straw resources within the raw material collection area, including the planting area of ​​major crops in natural years, yield per unit area, straw coefficient, theoretical straw production, collectable coefficient, collectable amount, etc., as well as straw morphology and quality data such as average moisture content, soil content, calorific value, ash content, and crushing and returning to the field ratio, and identifies them as biomass reserve raw material data; the system executes different raw material processing instructions according to the clean heating mode determined in S2.

[0087] If the current mode is the first clean heating mode, the system generates the first raw material quality standard, which includes: raw material moisture content less than 30% and raw material soil content less than 20%. The system controls or instructs the raw material pretreatment unit to inspect the biomass reserve raw materials to meet the first raw material quality standard. If the current mode is the second clean heating mode, the system generates a raw material transfer instruction to transport the biomass reserve raw materials to the designated briquette processing station and generates a processing instruction to control the briquette processing station to process the raw materials into biomass briquettes of a predetermined form, including pellets, blocks, and rods.

[0088] S4. Determine the clean heating development model: Based on the clean heating model determined in S2, associate and initiate the corresponding implementation and management processes: For the first clean heating model, the system associates and initiates the energy performance contracting process, which includes generating project entrustment instructions to execute integrated investment, construction and operation operations through a third-party enterprise; For the second clean heating model, the system associates and initiates the individual household procurement process, which includes generating equipment and fuel purchase guidance information for individual households to purchase decentralized biomass briquette stoves and biomass briquette fuel to meet their winter heating needs.

[0089] S5. Determine the configuration of clean heating equipment: The straw direct combustion centralized heating equipment and facilities consist of a boiler, heating pipe network, flue gas purification, and waste heat recovery, covering major heating areas such as township governments, rural communities, township schools, township hospitals, residential areas, family farms, and agricultural cooperatives. The boiler itself is a 35t / h "water-cooled vibrating grate + high-low differential speed composite combustion" straw direct combustion boiler, with segmented grate air supply and SNCR+SCR combined denitrification to ensure NOx ≤ 50 mg / m³; the heating pipe network uses Q235B spiral submerged arc welded steel pipes, with D426×7 as the main pipe and D219×6 as the branch pipes. Insulation uses "50 mm rigid polyurethane foam + Φ560 HDPE outer protective pipe" prefabricated direct burial, with a thermal conductivity ≤ 0.028 W / (m·K) and heat loss ≤ 0.8. W / m (130℃ operating condition); The flue gas purification section adopts a series connection of a first-stage "multi-tube cyclone + second-stage bag filter + third-stage wet electrostatic precipitator". The circulating water of the wet electrostatic precipitator and the spray water of the ash silo share the same sedimentation tank. After sedimentation, the supernatant is reused for wet ash removal, achieving "zero wastewater" discharge; The waste heat recovery section adds a "fluoroplastic low-temperature economizer" at the outlet of the bag filter, which reduces the flue gas temperature from 160℃ to 90℃. The recovered heat is used to preheat the centralized pipeline return water (40℃→70℃), which can reduce the boiler natural gas ignition consumption by 12%.

[0090] Decentralized biomass briquette heating provides automatic ignition and automatic filling functions for individual rural households with heating areas of 60-200㎡. Through the configuration of biomass clean heating equipment and a hydronic heating system, it can provide energy for winter heating and cooking activities. The decentralized biomass heating stove has a rated thermal power of 12-24kW and features a "feed-combustion-heat exchange" function. The combustion chamber adopts a "double-layer sleeve + secondary spiral turbulence" structure, with an excess air coefficient of 1.3→1.1 and a combustion efficiency of 93%. The hydronic heating system has a built-in 6L expansion tank, a shielded pump, and a variable frequency fan. The outlet water temperature is controlled at 55-65℃ via a closed-loop NTC sensor. The automatic feeding device has a built-in 20kg hopper, using a motor and screw feeder, and can send a "feeding" reminder 12 hours in advance to prevent households from temporarily resorting to electric auxiliary heating at night when biomass is insufficient.

[0091] S6. Clarify the resource utilization pathways for combustion waste: Straw direct combustion centralized heating achieves flue gas purification and compliant emissions through the "dry ash discharge + two-stage screening + ash silo passivation + nutrient compounding" model. The dry ash discharge section of the boiler is equipped with a combined conveyor of "buried scraper + chain bucket" at the tail end, which mixes the grate ash and dust collector fly ash at a ratio of 7:3, with a moisture content of ≤5%. In the two-stage screening system, the ash first passes through a 5mm drum screen. Large pieces (>5mm) are returned to the furnace for reburning, while fine ash enters a low-temperature slow cooling system of "drum cooling + cement kiln waste heat," where the temperature is reduced from 600℃ to 80℃ to avoid soluble potassium loss due to crystal phase transformation. The ash silo passivation system sprays 3% by mass of modified phosphogypsum in a sealed ash silo, utilizing the heat release from the hydration of free calcium oxide to lower the pH from 12 to 8, preventing burns to seedlings when returned to the field. Nutrient compounding is carried out in a twin-shaft paddle mixer at a ratio of ash: humic acid: trace elements = 100:15:2 to obtain "silicon-potassium-calcium" slow-release fertilizer. Finally, a "village collection-town transfer-county return to the field" model is adopted, using existing forklifts and sealed trucks in the centralized boiler room to transport fertilizer within a 15km radius, achieving local recycling of resources.

[0092] Decentralized biomass briquette heating utilizes a "drawer-type ash collection box + in-situ passivation" model to achieve the recycling of wood ash. On one hand, the bottom of the stove is equipped with a 2.5L high-temperature resistant drawer-type ash collection box, which can be pulled out to remove ash. The inner wall of the box is coated with a 0.3mm PTFE anti-sticking layer, and the moisture content of the ash residue is ≤3%, making it easy to spread directly. On the other hand, in-situ passivation technology is used, with 50g of biochar (500℃ low-temperature hydrothermal char) pre-spread in the drawer. By utilizing its microporous structure, it effectively adsorbs heavy metals (Cd, Pb) in the ash.

[0093] S7. Calculation of energy saving and emission reduction of biomass heating: The centralized heating area in Town A is 60,000 square meters. Before the replacement, the annual coal consumption was 4,390 tons. The value is taken as 89.001 tons / TJ. The value is 29.8. The value is taken as 0.001 tons / TJ. The value is 273. Taking a value of 0.0015 tons / TJ, the fossil fuel consumption for centralized heating is 98.12 TJ, therefore the carbon emissions from fossil fuels for centralized heating are 8775.57 tons / TJ. , The value is 29.8. Values , The value is 273. The value is 3 If the amount of straw briquetted fuel used is 6585t, then the carbon dioxide emission reduction generated by direct combustion of biomass straw for centralized heating is 8614.22t.

[0094] The coal consumption for decentralized biomass briquettes heating is 544 tons. The value is taken as 89.001 tons / TJ. The value is 29.8. The value is taken as 0.001 tons / TJ. The value is 273. Taking a value of 0.0015 tons / TJ, the fossil fuel consumption for centralized heating is 12.16 TJ, therefore the fossil fuel carbon emissions for decentralized heating are 1087.45 tons / TJ. . The value is 29.8. Values , The value is 273. The value is 3 If the amount of straw briquetted fuel used is 816t, then the carbon dioxide emission reduction generated by heating through decentralized biomass briquetted fuel is 1063.53t.

[0095] S8. Cost and Feasibility Analysis of Biomass Heating: Based on the built-in economic analysis model, cost assessment and strategy optimization are carried out for two clean heating modes. For the economic assessment of centralized heating, the system calls up the operating data in the first clean heating mode, including boiler thermal efficiency, annual operating hours, annual straw consumption, straw price at the plant, circulating water volume, power consumption and price of network pumps, pipeline heat loss rate, total heat transfer area and heat transfer coefficient of heat exchange station, connected building area, average heat index during the heating season, number of days in the heating season and average daily operating time, number of operating personnel and annual labor cost, annual maintenance rate, original value and depreciation period of heating facilities, and other operating data. The system calculates the heating cost per unit area based on operational data. The heating cost is calculated as follows: (Annual clean fuel usage cost + Annual electricity cost + Annual labor, maintenance, and depreciation costs) / Total heating area. Generally, the heating cost is maintained at 20 yuan / ㎡. The system compares this result with the pre-stored coal-fired heating cost data. If the clean heating cost is less than or equal to the coal-fired heating cost, the first clean heating mode is implemented. If the clean heating cost is greater than the coal-fired heating cost, the system considers delaying the implementation of the clean heating mode by applying for subsidies or other means.

[0096] For the second clean heating mode, two cost optimization strategies are generated and recommended: Activating the "Straw Resource and Biomass Pellets Exchange" trading model to encourage users to exchange raw materials for fuel; the trading model is as follows: 1 ton of standard briquettes (lower calorific value 16.8 MJ / kg, moisture content ≤12%) is defined as 1 "Standard Heat Unit (THU)"; farmers' straw is converted into effective heat based on measured calorific value, moisture content, and impurity rate, and the system provides a real-time exchange ratio R = 1 THU / effective heat; farmers input delivery coordinates and estimated straw tonnage at the terminal to generate a raw material order, and the processing station reverses the price to reach a contract; the processing station stores the corresponding pellets in the farmer's "fuel account," which can be withdrawn or transferred as needed, achieving zero or low cash acquisition of fuel. The system also generates and implements a "Biomass Pellets Off-Peak Purchase" strategy instruction to guide users to purchase during off-peak demand periods to reduce overall energy costs.

[0097] This embodiment provides a clean heating method suitable for rural areas in northern China, which can be used in the aforementioned clean heating system for rural areas in northern China. Figure 11 This is a flowchart of a clean heating method applicable to rural areas in northern China according to an embodiment of the present invention, such as... Figure 11 As shown, the process includes the following steps: Step S1101: Obtain the geographical information of the centralized heating network in the target area through the clean heating mode discrimination module, and determine the clean heating mode based on the geographical information of the centralized heating network in the target area; wherein, the clean heating mode includes the straw baling direct combustion mode and the decentralized biomass briquette fuel heating mode.

[0098] Step S1102: Obtain biomass reserve raw materials in the target raw material collection area through the raw material processing module, and execute raw material processing instructions based on the clean heating mode for the biomass reserve raw materials.

[0099] Step S1103: In the clean heating mode, the biomass storage raw materials are burned and heated by the combustion heating module using clean heating equipment.

[0100] Step S1104: Quantify the carbon dioxide emission reduction under the clean heating mode through the heating carbon emission calculation module.

[0101] Step S1105: Obtain the operating data of the clean heating equipment through the clean heating optimization module, optimize the heating cost based on the operating data of the clean heating equipment and the carbon dioxide emission reduction, and obtain the optimal clean heating strategy.

[0102] This embodiment describes a clean heating method suitable for rural areas in northern China, applied to, for example... Figure 1 The illustrated embodiment is a clean heating system suitable for rural areas in northern China; therefore, the specific implementation of steps S1101 and S1105 can be found in the preceding text. Figure 1 The corresponding descriptions of the illustrated embodiments are not repeated here.

[0103] It is understandable that the function and beneficial effects of the method in this embodiment are the same as those of the previous embodiment. Figure 1 The illustrated embodiment corresponds to the function and beneficial effects of a clean heating system suitable for rural areas in northern China, which will not be elaborated here.

[0104] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application.

[0105] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0106] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0107] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0108] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0109] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of this application, essentially, or the parts that contribute to the prior art, or parts of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0110] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A clean heating system suitable for use in northern rural areas, characterized in that, The system comprises: A clean heating mode determination module is configured to acquire centralized heating pipe network geographic information of a target area, and determine a clean heating mode based on the centralized heating pipe network geographic information of the target area; wherein the clean heating mode comprises a straw baling direct combustion mode and a decentralized biomass briquette heating mode; A raw material processing module is connected to the clean heating mode determination module, and is configured to acquire biomass storage raw materials in a target raw material collection area, and execute raw material processing instructions based on the clean heating mode for the biomass storage raw materials; A combustion heating module is connected to the clean heating mode determination module and the raw material processing module, and is configured to utilize clean heating equipment to perform combustion heating on the biomass storage raw materials in the clean heating mode; A heating carbon emission calculation module is configured to quantify carbon dioxide emission reduction in the clean heating mode; A clean heating optimization module is connected to the heating carbon emission calculation module, and is configured to acquire operation data of clean heating equipment, perform heating cost optimization based on the operation data of the clean heating equipment and the carbon dioxide emission reduction, and obtain an optimal clean heating strategy.

2. The system of claim 1, wherein, The clean heating mode determination module comprises: A determination unit is configured to determine a heating type of a target area based on the centralized heating pipe network geographic information; A first determination unit is configured to adopt the straw baling direct combustion mode as the clean heating mode if the heating type of the target area is a centralized heating type; A second determination unit is configured to adopt the decentralized biomass briquette heating mode as the clean heating mode if the heating type of the target area is a scattered household heating type.

3. The system of claim 1, wherein, The raw material processing module comprises: A first generation unit is configured to generate a raw material inspection instruction if the clean heating mode adopts the straw baling direct combustion mode; wherein the raw material inspection instruction is used to inspect the biomass storage raw materials and generate a raw material inspection result; A second generation unit is configured to generate a raw material transfer instruction if the clean heating mode adopts the decentralized biomass briquette heating mode; wherein the raw material transfer instruction is used to transport the biomass storage raw materials to a target briquette processing station, and control the briquette processing station to process the biomass storage raw materials into biomass briquettes.

4. The system of claim 1, wherein, The combustion heating module comprises: A straw direct combustion centralized heating equipment and a decentralized biomass briquette heating equipment; the straw direct combustion centralized heating equipment comprises a straw baling direct combustion boiler, a heating pipe network, a flue gas purification device, and a waste heat recovery device; the straw baling direct combustion boiler is connected to the heating pipe network, the flue gas purification device, and the waste heat recovery device, respectively; the decentralized biomass briquette heating equipment comprises an automatic feeding device, a decentralized biomass heating stove, and a water heating device; the decentralized biomass heating stove is connected to the automatic feeding device and the water heating device, respectively.

5. The system of claim 4, wherein, The straw direct combustion centralized heating equipment further comprises: The dry ash discharging device, the two-stage screening device, the ash bin passivation device, and the nutrient compound device; the dry ash discharging device is arranged at the tail of the straw baling direct combustion boiler; the two-stage screening device is arranged at the outlet of the dry ash discharging device; the ash bin passivation device is connected with the two-stage screening device; and the nutrient compound device is connected with the two-stage screening device.

6. The system of claim 4, wherein, The distributed biomass briquette heating equipment further comprises: A drawer type ash collecting box is arranged at the bottom of the distributed biomass heating stove, and a preset weight of biochar is arranged in the drawer type ash collecting box.

7. The system of claim 1, wherein, The heating carbon emission calculation module comprises: An acquisition unit is configured to acquire the fossil fuel combustion carbon dioxide emission and the greenhouse gas emission generated by the straw briquette combustion in the clean heating mode; A calculation unit is configured to calculate the carbon dioxide emission reduction of the straw direct combustion central heating and the carbon dioxide emission reduction of the straw biomass briquette heating based on the fossil fuel combustion carbon dioxide emission and the greenhouse gas emission generated by the straw briquette combustion, respectively.

8. The system of claim 7, wherein, The acquisition unit comprises: An acquisition subunit is configured to acquire the fossil fuel combustion carbon dioxide emission factor, the methane warming potential value, the fossil fuel combustion methane emission factor, the nitrogen dioxide warming potential value, the fossil fuel combustion nitrogen dioxide emission factor, the fossil fuel consumption, the methane emission factor of the heating equipment burning the straw briquette, the nitrogen dioxide emission factor of the heating equipment burning the straw briquette, and the quantity of the straw briquette; A first calculation subunit is configured to calculate the fossil fuel combustion carbon dioxide emission based on the fossil fuel combustion carbon dioxide emission factor, the methane warming potential value, the fossil fuel combustion methane emission factor, the nitrogen dioxide warming potential value, the fossil fuel combustion nitrogen dioxide emission factor, and the fossil fuel consumption; A second calculation subunit is configured to calculate the greenhouse gas emission generated by the straw briquette combustion based on the methane warming potential value, the methane emission factor of the heating equipment burning the straw briquette, the nitrogen dioxide warming potential value, the nitrogen dioxide emission factor of the heating equipment burning the straw briquette, and the quantity of the straw briquette.

9. The system of claim 1, wherein, Further comprising: A clean heating development module connected with the clean heating mode discrimination module is configured to configure the heating implementation and management rules based on the clean heating mode.

10. A clean heating method suitable for northern rural areas, characterized in that, The method applied to the clean heating system suitable for the northern rural areas according to any one of claims 1 to 9, the method comprises: A clean heating mode discrimination module is configured to acquire the central heating pipe network geographic information of a target area, and determine the clean heating mode based on the central heating pipe network geographic information of the target area; wherein the clean heating mode comprises a straw baling direct combustion mode and a distributed biomass briquette heating mode; A raw material processing module is configured to acquire the biomass storage raw material in a target raw material collection area, and execute the raw material processing instruction based on the clean heating mode for the biomass storage raw material; In the clean heating mode, the biomass reserve raw material is combusted and heated by the clean heating device through the combustion of the heating module; The carbon dioxide emission reduction amount in the clean heating mode is quantified by the heating carbon emission calculation module; The operation data of the clean heating device are obtained by the clean heating optimization module, and the heating cost is optimized based on the operation data of the clean heating device and the carbon dioxide emission reduction amount to obtain an optimal clean heating strategy.

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