Urban underground pipeline biogas disposal and utilization device

Abstract

The utility model discloses an urban underground pipeline biogas disposal and utilization device which mainly comprises a floating ball valve, a first flame arrester, a conveying gas pump, a detection control module, a second flame arrester, an ignition lighting control cabinet, a biogas lamp, an LED lamp, a photovoltaic cell panel, an artificial intelligence control management center, a booster gas pump, membrane method concentration equipment, a gas storage tank and the like. An artificial intelligence control management center collects data transmitted from all positions for analysis, an AI automatically gives an optimal disposal scheme according to a reference case and optimization logic provided by a database, and timely adjusts disposal strategies according to changes of gas flow, components and the like in each pipeline at any time, so that the disposal efficiency is improved. Detection, modeling analysis, instant disposal and intelligent control of the whole urban underground pipeline biogas and other harmful gases are achieved, and the purposes of eliminating dangerous sources and reasonably recycling underground pipeline biogas resources are achieved.

Description

Technical Field

[0001] This utility model relates to the field of underground pipeline biogas treatment and reuse technology, specifically an urban underground pipeline biogas treatment and utilization device. Background Technology

[0002] Urban underground pipes, containing domestic sewage and industrial wastewater, produce a certain amount of biogas in an oxygen-deficient environment. The main components are methane (50-70%), carbon dioxide (~30%), and small amounts of hydrogen sulfide, hydrogen, nitrogen, and carbon monoxide. Furthermore, leaks in piped gas can cause the accumulation of abnormal flammable gases, easily creating an explosion hazard. Especially in recent years, with the implementation of rainwater and sewage separation in urban construction, domestic sewage pipes lack rainwater flushing, leading to increased organic matter concentrations in the sewage and higher biogas production and concentrations, thus increasing the risk of explosion. Currently, preventing the risks posed by biogas involves two main measures: first, regularly dredging small waterways to prevent garbage accumulation and fermentation, reducing biogas production; and second, establishing a monitoring and early warning mechanism, including a flammable and toxic gas monitoring system in sewers, implementing unmanned remote real-time monitoring. However, actual control measures are inadequate, and in recent years, biogas explosions in underground pipes have occurred frequently, causing significant property damage and injuries.

[0003] Due to the wide distribution of underground pipelines, the composition of biogas and other harmful gases within them varies considerably, making treatment challenging. The calorific value of 1 m³ of biogas from underground pipelines is generally equivalent to 0.5–0.69 m³ of natural gas, and it can be used for boiling water, generating electricity, and lighting. According to data from Baidu, the annual biogas production from domestic sewage pipelines nationwide is 11.063 billion cubic meters. This biogas is mainly composed of methane and carbon dioxide, major greenhouse gases. Therefore, biogas collection and utilization are of great significance for carbon reduction. Utility Model Content

[0004] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a biogas treatment and utilization device for urban underground pipelines.

[0005] The technical solution adopted by this utility model to achieve the above-mentioned objectives is as follows: a biogas treatment and utilization device for urban underground pipelines, comprising a float valve, a detection and control module, a first flame arrester, a gas delivery pump, lighting equipment, a second flame arrester, and an ignition and lighting control cabinet. Several waterway wells are installed along the urban sewer pipeline. A float valve is fixedly connected to the inner wall of each waterway well. One end of the float valve is connected to a gas collection pipeline. Under normal circumstances, the float does not contact the sewage, and the valve is in the open state, allowing gas in the waterway well to be smoothly extracted by the pipeline. When the sewage level is high, the float valve closes as the sewage level rises, thereby preventing sewage from entering the gas collection pipeline. The other end of the gas collection pipeline is connected to the detection and control module. The gas collection pipeline is equipped with... The system is equipped with a first flame arrester and a gas delivery pump. The first flame arrester prevents backfire through the gas collection pipeline in the event of an accidental fire in the subsequent equipment, thus eliminating the risk of combustion and explosion in the water well caused by backfire. The gas delivery pump is used to pressurize the gas in the water well and send it to the detection and control module. One side of the detection and control module is connected to a biogas pipeline, and the other end of the biogas pipeline is connected to a lighting device. The lighting device can use the biogas generated by the pipeline for combustion lighting. A second flame arrester and an ignition lighting control cabinet are installed sequentially on the biogas pipeline. The second flame arrester is used to prevent the risk of backfire in the biogas pipeline between the lighting device and the ignition lighting control cabinet. The ignition lighting control cabinet is used to realize the ignition control operation of the lighting device.

[0006] In the above technical solution, the other side of the detection and control module is connected to a biogas delivery pipeline, the other end of the biogas delivery pipeline is connected to a gas storage tank, and a booster pump and a membrane enrichment device are installed sequentially on the biogas delivery pipeline. An outlet pipeline is fixedly connected to one side of the gas storage tank, and the outlet pipeline is connected to several branch pipes. Some of the branch pipes are connected to the detection and control modules at various locations, and the other part of the branch pipes are connected to a domestic gas stove, a power generation device, and a municipal gas pipeline.

[0007] In the above technical solution, the lighting equipment includes a street light pole, a photovoltaic panel, an LED light, a biogas lamp, and a lampshade. A lampshade is fixedly connected to one side of the top of the street light pole, and a biogas lamp and an LED light are fixedly connected to the lower end of the lampshade. A photovoltaic panel is fixedly connected to the top of the street light pole.

[0008] The above technical solution also includes an artificial intelligence control and management center, which consists of a multi-level system and is established step by step according to the distribution of the underground pipeline network, such as streets, districts, counties, cities, and provinces.

[0009] In the above technical solution, the detection and control module includes a gas analysis and detection function block, an interactive control function block, a hazard warning light, and an alarm buzzer. The gas analysis and detection function block is connected to the biogas transmission pipeline and is used for pipeline gas analysis and detection. The interactive control function block is connected to the gas analysis and detection function block, the ignition and lighting control cabinet, the artificial intelligence control and management center, the hazard warning light, and the alarm buzzer via data cables.

[0010] The beneficial effects of this utility model are:

[0011] 1. Safety risk prevention and control and operational support

[0012] The float valve-linked gas collection system and dual flame arrester design effectively prevent sewage backflow and flashback risks, ensuring stable biogas collection and safe transportation. The detection and control module monitors gas concentration in real time, and combined with a single-unit / linked dual-mode operation mechanism, ensures that the biogas concentration in the pipeline remains below the explosion threshold, eliminating the risk of combustion and explosion caused by the accumulation of combustible gas. Simultaneously, an alarm system consisting of hazard warning lights and buzzers provides construction personnel with intuitive safety warnings for well-drilling operations, creating a safe pipeline maintenance environment.

[0013] 2. Resource utilization and low-carbon emission reduction

[0014] A biogas treatment system employing a membrane enrichment device linked to a storage tank purifies the collected methane and delivers it to residential gas supply and power generation facilities, achieving energy recycling. An intelligent switching mechanism between biogas lamps and LED lights prioritizes biogas lighting, reducing traditional energy consumption. This design not only converts harmful gases into usable resources but also significantly reduces the greenhouse effect of direct methane emissions, thus promoting urban carbon reduction.

[0015] 3. Intelligent monitoring and emergency response

[0016] Relying on the multi-level interconnected control architecture of the AI ​​control and management center, it integrates data such as gas flow, composition, and equipment status, and dynamically optimizes gas collection strategies and energy distribution schemes through AI algorithms. In abnormal situations, it can automatically trigger fault alarms, pipeline interlock control, and LED emergency lighting switching, constructing a three-dimensional safety monitoring network covering from the street level to the provincial level, providing real-time protection for residents' safety and urban emergency management.

[0017] 4. Green Energy and Sustainable Operation and Maintenance

[0018] The system integrates photovoltaic panels and municipal power supply, prioritizing solar-powered gas pumps and monitoring and control modules. It seamlessly switches to grid power during cloudy or rainy weather, achieving 24 / 7 zero-carbon operation. This energy management solution reduces equipment dependence on external electricity and, combined with a biogas-based self-supplied lighting system, forms a closed-loop ecosystem of "gas collection - clean utilization - renewable energy supply," significantly improving the environmental friendliness and long-term maintenance capabilities of urban underground pipeline systems. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the system composition structure of this utility model;

[0020] Figure 2 for Figure 1 Detailed structural diagram of part A1.

[0021] In the diagram: 1 float valve, 2 detection and control module, 3 first flame arrester, 4 delivery gas pump, 5 lighting equipment, 6 second flame arrester, 7 ignition and lighting control cabinet, 8 waterway well, 9 gas collection pipeline, 10 biogas pipeline, 11 biogas delivery pipeline, 12 gas storage tank, 13 membrane enrichment equipment, 14 artificial intelligence control and management center, 15 outlet pipeline, 16 branch pipe, 17 booster gas pump;

[0022] 201 Gas analysis and detection function block, 202 Interactive control function block, 203 Hazard warning light, 204 Alarm buzzer;

[0023] 501 Streetlight pole, 502 Photovoltaic panel, 503 LED light, 504 Biogas lamp, 505 Lamp cover. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-2A biogas treatment and utilization device for urban underground pipelines includes a float valve 1, a detection and control module 2, a first flame arrester 3, a gas delivery pump 4, lighting equipment 5, a second flame arrester 6, and an ignition and lighting control cabinet 7. Several waterway manholes 8 are installed along the urban sewer system. A float valve 1 is fixedly connected to the inner wall of each waterway manhole 8. One end of the float valve 1 is connected to a gas collection pipeline 9. Under normal circumstances, the float does not contact the sewage, and the valve is in the open state, allowing gas to be smoothly extracted from the waterway manhole 8. When the sewage level is high, the float valve 1 closes as the sewage level rises, thus preventing sewage from entering the gas collection pipeline 9. The other end of the gas collection pipeline 9 is connected to the detection and control module 2. A first flame arrester 3 and a second flame arrester 6 are sequentially installed on the gas collection pipeline 9. The delivery gas pump 4 and the first flame arrester 3 can prevent the flame from backfired through the gas collection pipeline 9 in the event of an accidental fire in the subsequent equipment, thus eliminating the risk of combustion and explosion in the water well 8 caused by backfire. The delivery gas pump 4 is used to pressurize the gas in the water well 8 and send it to the detection and control module 2. One side of the detection and control module 2 is connected to the biogas pipeline 10, and the other end of the biogas pipeline 10 is connected to the lighting equipment 5. The lighting equipment 5 can use the biogas generated by the pipeline for combustion lighting. The biogas pipeline 10 is installed with a second flame arrester 6 and an ignition lighting control cabinet 7 in sequence. The second flame arrester 6 is used to prevent the risk of backfire in the biogas pipeline 10 between the lighting equipment 5 and the ignition lighting control cabinet 7. The ignition lighting control cabinet 7 is used to realize the ignition control operation of the lighting equipment 5.

[0026] In the above technical solution, the other side of the detection and control module 2 is connected to a biogas delivery pipeline 11, and the other end of the biogas delivery pipeline 11 is connected to a gas storage tank 12. A booster pump 17 and a membrane enrichment device 13 are installed sequentially on the biogas delivery pipeline 11. When in use, the biogas collected from various locations is delivered to the membrane enrichment device 13 by the booster pump 17 through the gas collection pipeline 9. The membrane enrichment device 13 sends the enriched biogas into the gas storage tank 12 for storage. An outlet pipeline 15 is fixedly connected to one side of the gas storage tank 12. The outlet pipeline 15 is connected to several branch pipes 16. Some of the branch pipes 16 are connected to the detection and control modules 2 at various locations to provide gas when the biogas in the water well 8 is insufficient to support the lighting of the biogas lamp 504. Other branch pipes 16 are delivered to domestic gas stoves, power generation equipment, etc. for use as fuel. They can also be safely connected to the municipal gas pipeline at appropriate locations.

[0027] In the above technical solution, the lighting equipment 5 includes a street light pole 501, a photovoltaic panel 502, an LED light 503, a biogas lamp 504, and a lampshade 505. The street light pole 501 provides support for the lighting equipment. A lampshade 505 is fixedly connected to one side of the top of the street light pole 501. The biogas lamp 504 and the LED light 503 are fixedly connected to the lower end of the lampshade 505. The biogas lamp 504 has a built-in ignition rod and an ionization flame detection probe (i.e., flameout protection function), and is controlled by the ignition lighting control cabinet 7. If the biogas lamp 504 is accidentally extinguished by wind, the ignition lighting control cabinet 7 sends an automatic ignition command to relight it. In the event of fire extinguishing problems caused by mechanical damage or outdated equipment, the ignition and lighting control cabinet 7 sends an abnormal signal to the interactive control function block 202 to take pre-handling measures such as reporting faults and alarms. At night, if the biogas lamp 504 is in a faulty state, it is also necessary to control the switch to LED lamp 503 for power supply and lighting. The top of the street light pole 501 is fixedly connected to a photovoltaic panel 502, which mainly provides power to the detection and control module 2, the ignition and lighting control cabinet 7 and the LED lamp 503. In addition, this device is also connected to the municipal power supply. When the photovoltaic panel 502 is insufficient or depleted on cloudy or rainy days, the interactive control function block 202 immediately switches to municipal power supply.

[0028] The aforementioned technical solution also includes an artificial intelligence control and management center 14. This center uses a Chuangshi IPC48 industrial AI control computer as its core controller and employs a computer-based human-interface operation. The AI ​​control and management center 14 is composed of a multi-level system, established hierarchically according to the distribution of the underground pipeline network, from streets, districts, counties, cities, to provinces. This allows for flexible data and resource sharing and intelligent joint control. The AI ​​control and management center 14 collects and analyzes data from various locations. Based on reference cases and optimization logic provided by the database, the AI ​​automatically provides the optimal handling plan and adjusts the handling strategy in real time according to changes in gas flow rate and composition within each pipeline. Handling methods include (but are not limited to): turning off / on a gas collection point, turning off / on a biogas lamp 504 (LED, etc.), adjusting the gas pump speed, turning on / off the hazard alarm, adjusting the power of the booster pump 17, adjusting the membrane concentration treatment capacity, switching the drive power supply, submitting a handling plan notification, and triggering a crisis management alarm, etc.

[0029] In the above technical solution, the detection and control module 2 includes a gas analysis and detection function block 201, an interactive control function block 202, a hazard warning light 203, and an alarm buzzer 204. The gas analysis and detection function block 201 is connected to the biogas transmission pipeline 11 and is used for pipeline gas analysis and detection. The Dongri Yingneng SK / MIC-600 area monitoring system serves as the core detection module. The interactive control function block 202 is connected to the gas analysis and detection function block 201, the ignition lighting control cabinet 7, the artificial intelligence control management center 14, the hazard warning light 203, and the alarm buzzer 204 via data cables. The interactive control function block 202 uses the ICP AIB-2941M Edge AI controller as the local control core. The hazard warning light 203 and the alarm buzzer 204 can provide warnings when equipment malfunctions. The detection and control module 2 includes two operating modes, specifically:

[0030] Standalone operation mode: Suitable for remote areas or situations with low biogas volume in the pipeline. In this mode, the interactive control function block 202 shuts down communication with the artificial intelligence control and management center 14, and does not construct the gas storage tank 12 and its associated pipeline network (including biogas transmission pipeline 11, booster pump 17, membrane concentration equipment 13, outlet pipeline 15, branch pipe 16, etc.). When operating in standalone mode, the interactive control function block 202 automatically controls the collection scheme and frequency of gas according to the detection results of the gas analysis and detection function block 201, and the biogas lamp 504 completely and immediately combusts the gas to ensure that biogas and harmful gases exceeding the set value do not accumulate in the pipeline, ensuring safety as the principle.

[0031] Linked operation mode: Suitable for areas with large and dense biogas volume, i.e., the artificial intelligence control and management center 14 specifies the disposal plan according to the situation of each place, including whether to store excess biogas through the gas storage tank 12, whether to switch the use of biogas lamp 504 or LED lamp 503, etc., and issues instructions to each place, which are executed by the interactive control function block 202 of each place.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biogas treatment and utilization device for urban underground pipelines, comprising a float valve (1), a detection and control module (2), a first flame arrester (3), a gas delivery pump (4), lighting equipment (5), a second flame arrester (6), and an ignition and lighting control cabinet (7), characterized in that: Several waterway wells (8) are installed along the city's sewer pipes. A float valve (1) is fixedly connected to the inner wall of the waterway well (8). One end of the float valve (1) is connected to a gas collection pipeline (9), and the other end of the gas collection pipeline (9) is connected to a detection and control module (2). A first flame arrester (3) and a gas delivery pump (4) are installed sequentially on the gas collection pipeline (9). A biogas pipeline (10) is connected to one side of the detection and control module (2), and the other end of the biogas pipeline (10) is connected to a lighting device (5). A second flame arrester (6) and an ignition lighting control cabinet (7) are installed sequentially on the biogas pipeline (10).

2. The urban underground pipeline biogas treatment and utilization device according to claim 1, characterized in that: The other side of the detection and control module (2) is connected to a biogas delivery pipeline (11), and the other end of the biogas delivery pipeline (11) is connected to a gas storage tank (12). A booster pump (17) and a membrane concentration device (13) are installed on the biogas delivery pipeline (11) in sequence. An outlet pipeline (15) is fixedly connected to one side of the gas storage tank (12). The outlet pipeline (15) is connected to several branch pipes (16). Some of the branch pipes (16) are connected to the detection and control modules (2) at various locations, and the other part of the branch pipes (16) are connected to a domestic gas stove, a power generation device, and a municipal gas pipeline.

3. The urban underground pipeline biogas treatment and utilization device according to claim 1, characterized in that: The lighting equipment (5) includes a street light pole (501), a photovoltaic panel (502), an LED lamp (503), a biogas lamp (504), and a lamp cover (505). The lamp cover (505) is fixedly connected to one side of the top of the street light pole (501). The biogas lamp (504) and the LED lamp (503) are fixedly connected to the lower end of the lamp cover (505). The photovoltaic panel (502) is fixedly connected to the top of the street light pole (501).

4. The urban underground pipeline biogas treatment and utilization device according to claim 1, characterized in that: It also includes an artificial intelligence control and management center (14), which is composed of a multi-level system and is established step by step according to the distribution of the underground pipeline network, from street, district, county, city and province.

5. The urban underground pipeline biogas treatment and utilization device according to claim 4, characterized in that: The detection and control module (2) includes a gas analysis and detection function block (201), an interactive control function block (202), a hazard warning light (203), and an alarm buzzer (204). The gas analysis and detection function block (201) is connected to the biogas transmission pipeline (11) and is used for pipeline gas analysis and detection. The interactive control function block (202) is connected to the gas analysis and detection function block (201), the ignition lighting control cabinet (7), the artificial intelligence control management center (14), the hazard warning light (203), and the alarm buzzer (204) via data lines.

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