Dump pit roof isolation device system in main power house of waste incineration power plant

Abstract

The invention belongs to the technical field of garbage pit harmful gas isolation and the like, and discloses a garbage pit roof isolation device system which comprises a roof isolation system, a video monitoring module, a leakproofness detection module, a main control module, an air purification module, a condensate water treatment module, a disinfection module, an illumination module and a display module. The sealing performance of the garbage pit roof isolation device system is ensured through the leakproofness detection module, so that gas leakage is prevented; meanwhile, after the condensate water treatment module is treated by professional landfill leachate treatment equipment, the effluent quality of the leachate is more stable and can reach a higher standard, and secondary treatment by additional treatment equipment is not needed. And pollutants in the leachate can be well removed. And for high-salinity organic matters, the removal rate is superior to that of a reverse osmosis technology, and more than 99.9% of pollutants can be effectively removed.

Description

Technical Field

[0001] The invention belongs to the technical field of garbage pit isolation in a main plant building of a municipal garbage incineration power plant, and in particular relates to a garbage pit roof isolation device system. Background Art

[0002] The garbage pit in the main plant of the waste incineration power plant is usually used as a temporary storage place for garbage for subsequent incineration treatment. The garbage pit provides a centralized storage space for garbage, allowing it to accumulate and compact naturally. Over time, moisture and other substances in the garbage will seep out, which helps to increase the calorific value of the garbage. In addition, the garbage can also ferment to a certain extent in the pit, further changing its chemical and physical properties. During the accumulation and fermentation of garbage, odor and toxic and harmful gases will be produced. Therefore, the overall airtightness of the garbage pit has a direct effect on keeping the odor from overflowing. Due to the limitations of construction technology and cost, the roof system of the garbage pit generally adopts a large-span steel structure roof truss system, and the roof enclosure system often adopts a plate type. Generally, there are often situations such as poor sealing, which leads to the leakage of harmful gases from garbage to pollute the environment and the long-term corrosion of the steel structure by the moist corrosive gas in the pit, which makes it difficult to maintain in the later stage. .

[0003] Through the above analysis, the problems and defects of the prior art are as follows:

[0004] (1) The existing garbage pit isolation device system is not well sealed, resulting in the leakage of harmful gases from garbage and polluting the environment.

[0005] (2) The corrosive gases and condensed water in the garbage pit seriously corrode the steel structure, which is not conducive to the normal use of the load-bearing and external protective components. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a garbage pit roof isolation device system.

[0007] The present invention is implemented as follows: a garbage pit roof isolation device system, comprising:

[0008] Steel structure roof truss system, serving as the upper support for the isolation device (partition layer and ventilation purification system);

[0009] The partition layer is set under the steel structure roof. It is composed of corrosion-resistant and high-temperature resistant concrete, cement board or special isolation materials. It has built-in special sealing strips and air barriers to block the rise of harmful gases. It is required to have the characteristics of strong integrity, corrosion resistance, heat insulation, and easy construction.

[0010] The ventilation and purification system is located in the cavity between the partition layer and the roof outer sheathing layer, including exhaust fans and ventilation ducts, and is designed with multiple ventilation inlets and outlets to control and purify the small amount of odor that seeps out of the garbage pit partition layer;

[0011] A monitoring and control system, including a gas monitoring sensor and a temperature sensor, connected to the central control system, for real-time monitoring of the gas concentration and temperature in the cavity above the partition layer and automatic adjustment of the ventilation system;

[0012] Maintenance passages, dedicated maintenance passages and inspection ports with sealed doors, are set up for daily maintenance and rapid response in emergency situations.

[0013] Furthermore, the ventilation inlets and outlets of the ventilation system in the cavity between the partition layer and the roof outer protective layer are evenly distributed around the partition layer, and the ventilation system can automatically adjust the operating speed and mode through the central control system to optimize the circulation and purification effect of the gas; the monitoring and control system further includes a user interface that allows the operator to adjust the ventilation settings and monitor real-time data, as well as generate and receive automatic alarms to respond to potential safety issues.

[0014] The present invention also provides a steel structure roof garbage pit isolation device, comprising:

[0015] Video monitoring module, airtightness detection module, main control module, air purification module, condensate treatment module, disinfection module, lighting module, display module;

[0016] A video monitoring module, connected to the main control module, for performing video monitoring of the garbage pit through a camera;

[0017] The airtightness detection module is connected to the main control module and is used to detect the airtightness of the isolation device of the steel structure roof system of the garbage pit;

[0018] The main control module is connected with the video monitoring module, the airtightness detection module, the air purification module, the condensate treatment module, the disinfection module, the lighting module, and the display module to control the normal operation of each module;

[0019] An air purification module, connected to the main control module, is used to purify the air in the cavity above the upper isolation layer of the garbage pit;

[0020] The condensate treatment module is connected to the main control module and is used to collect and treat the condensate generated on the roof in the cavity above the upper isolation layer of the garbage pit;

[0021] A disinfection module, connected to the main control module, is used to disinfect the garbage pit;

[0022] A lighting module, connected to the main control module, for illuminating the garbage pit;

[0023] The display module is connected to the main control module and is used to display monitoring videos and airtightness detection results.

[0024] Furthermore, the airtightness detection module includes:

[0025] Leakage detection module, used to detect leakage in the isolation device of the steel structure roof system of the garbage pit;

[0026] Sealing performance test module, used to test and evaluate the sealing performance of the isolation device of the steel structure roof system of the garbage pit;

[0027] The alarm module is used to detect leakage or sealing performance that does not meet the requirements and send out an alarm signal to remind the operator to take corresponding measures.

[0028] Furthermore, the leakage detection module detection method uses various sensors, such as pressure sensors, flow sensors, and gas detectors, to monitor whether there is gas or liquid leakage.

[0029] Furthermore, the sealing performance test module testing method evaluates the sealing performance through a pressure test, a negative pressure test or a water immersion test.

[0030] Furthermore, the alarm module outputs through sound and light alarm, indicator light display or electronic signal.

[0031] Furthermore, the air purification module comprises:

[0032] Air quality detection module, used to detect the air quality in the cavity above the isolation layer in the garbage pit;

[0033] An air filtration module is used to filter the air in the cavity above the isolation layer in the garbage pit;

[0034] The air sterilization module is used to sterilize the air in the cavity above the upper isolation layer of the garbage pit.

[0035] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0036] First, the present invention ensures the sealing performance of the isolation device of the steel structure roof system of the garbage pit through the airtightness detection module to prevent the leakage of harmful gases; at the same time, the condensate treatment module collects and treats it and then discharges it in a designated manner.

[0037] The present invention mainly ensures that the isolation device of the garbage pit roof system has good sealing performance through the airtightness detection module, thereby effectively preventing the leakage of harmful gases. In addition, the present invention also focuses on the treatment of condensed water generated by the roof.

[0038] A condensate treatment module is specially designed to collect and properly discharge the condensate generated in the garbage pit roof system.

[0039] The airtightness detection module and the condensed water treatment module of the present invention together constitute an efficient and environmentally friendly garbage pit roof system, which not only prevents the leakage of harmful gases, but also effectively treats the condensed water generated on the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural block diagram of a roof system isolation device for a garbage pit provided by an embodiment of the present invention.

[0041] Figure 2 It is a structural block diagram of the airtightness detection module provided in an embodiment of the present invention.

[0042] Figure 3 It is a structural block diagram of an air purification module provided in an embodiment of the present invention.

[0043] Figure 4 It is a schematic diagram of the structural installation of the roof system isolation device of the garbage pit provided by an embodiment of the present invention.

[0044] Figure 1 In: 1. Video surveillance module; 2. Airtightness detection module; 3. Main control module; 4. Air purification module; 5. Condensate treatment module; 6. Disinfection module; 7. Lighting module; 8. Display module. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The following is a detailed explanation and further information of the relevant terms of the present invention:

[0047] 1. The meaning of "upper support":

[0048] In this steel-structured roof garbage pit isolation device, the "upper support" refers to the steel structure roof truss system, which serves as the foundation and supporting structure of the entire isolation device, bears the weight of other parts such as the partition layer and ventilation system, and provides a platform for installation and maintenance.

[0049] 2. Supporting function:

[0050] Due to its solid structure and excellent load-bearing capacity, the steel structure roof truss system can stably support other parts such as the partition layer and ventilation system, ensuring the structural stability and safety of the entire isolation device.

[0051] 3. Anti-corrosion and sealing materials:

[0052] For the partition layer, since its main function is anti-corrosion and sealing, the following materials and construction methods can be selected:

[0053] Concrete or cement board: Anti-corrosion additives can be added to improve its resistance to chemical corrosion.

[0054] Special insulation materials: This material usually also has good anti-corrosion properties and has a low thermal conductivity, which can reduce heat transfer, act as an insulator, and reduce condensation.

[0055] Special sealing strips can be laid inside the isolation layer or on the side facing the pit to ensure the overall airtightness of the isolation layer and prevent leakage of harmful gases.

[0056] The gas barrier can be made of corrosion-resistant metal materials or non-combustible polymer materials and installed at key positions of the partition layer to block the rising channel of harmful gases.

[0057] 4. Control and purification of exhaust fans:

[0058] Control: The exhaust fan can be controlled by an automatic control system. This system can automatically adjust the speed and working time of the exhaust fan according to the gas concentration, temperature and other parameters in the cavity above the isolation layer to ensure that the harmful gas in the cavity between the upper isolation layer of the garbage pit and the outer protective layer of the roof is discharged in time.

[0059] Purification: In the ventilation duct, air purification equipment such as activated carbon filters, photocatalytic oxidizers, etc. can be installed to remove odors, toxic substances, etc. in harmful gases. The purified gas is then discharged into the atmosphere to reduce pollution to the environment.

[0060] 5. Emission of harmful gases:

[0061] When a small amount of harmful gas leaks in the cavity between the top partition layer of the garbage pit and the outer protective layer of the roof, the harmful gas will be extracted from the garbage pit through the exhaust fan and ventilation duct of the ventilation system, and then discharged into the atmosphere after being treated by the purification equipment. This can effectively prevent the accumulation of harmful gases around the garbage pit and cause harm to the environment and human health.

[0062] In summary, this steel structure roof garbage pit isolation device achieves effective isolation and discharge of harmful gases in the garbage pit through reasonable material selection and structural design, as well as effective ventilation and purification systems, ensuring the safety of the environment and personnel.

[0063] Here is how the garbage pit roof isolation device system works.

[0064] 1) Steel structure roof truss

[0065] The steel structure roof truss serves as the upper support of the isolation device and constitutes the basic framework of the entire system. It carries the partition layer, ventilation system, and monitoring and control system to ensure the stability and reliability of all components in harsh environments.

[0066] 2) Isolation layer

[0067] The isolation layer is set under the steel structure roof truss, and its main function is to block the rise of harmful gases and heat. The isolation layer is made of corrosion-resistant and high-temperature resistant materials, such as cement board, lightweight concrete board or metal board, and has built-in special sealing strips and gas barriers. These materials and components work together to effectively block the upward diffusion of harmful gases and heat in the garbage pit, protecting the upper structure and the surrounding environment.

[0068] 3) Ventilation system

[0069] The ventilation system is embedded in the cavity between the partition layer and the roof outer sheath, ensuring that the air can be effectively circulated and purified while isolating harmful gases. The ventilation system includes exhaust fans and ventilation ducts, and is designed with multiple ventilation inlets and outlets. Through the operation of the exhaust fan, air enters the system from the ventilation inlet, and after purification, it is discharged from the ventilation outlet. This process effectively controls and purifies the gas rising from the garbage pit and reduces the accumulation of harmful substances.

[0070] 4) Monitoring and control system

[0071] The monitoring and control system is the core of the entire isolation device system. It monitors the gas concentration and temperature in the cavity between the isolation layer and the roof outer sheath in real time through gas monitoring sensors and temperature sensors. The data from these sensors are transmitted to the central control system. Based on the monitored data, the central control system automatically adjusts the working state of the ventilation system, such as adjusting the operating speed of the exhaust fan and the opening and closing state of the ventilation duct, to ensure that the gas concentration and temperature in the cavity are always kept within a safe range.

[0072] 5) Maintenance channel

[0073] Maintenance channel has a dedicated maintenance channel and inspection port, equipped with a sealed door, to ensure that during routine maintenance and emergency situations, staff can quickly and safely enter the system for inspection and repair. The design of the sealed door ensures that the sealing of the system is not affected when maintenance is not required.

[0074] Detailed workflow:

[0075] 1) Initial state

[0076] After the initial installation of the system, the steel structure roof trusses stably support the partition layer, ventilation system and monitoring and control system.

[0077] The isolation layer effectively blocks the rise of harmful gases and heat in the garbage pit.

[0078] 2) Real-time monitoring

[0079] Gas monitoring sensors and temperature sensors continuously collect gas concentration and temperature data in the cavity between the insulation layer and the roof exterior sheathing.

[0080] Data is transmitted to the central control system in real time.

[0081] 3) Automatic adjustment

[0082] The central control system automatically adjusts the operation of the ventilation system based on the monitored gas concentration and temperature data.

[0083] If the gas concentration or temperature exceeds the set safety range, the system will start the exhaust fan to accelerate air circulation and reduce the gas concentration and temperature.

[0084] Multiple ventilation inlets and outlets of the ventilation ducts ensure efficiency and coverage of air circulation.

[0085] 4) Daily maintenance

[0086] Regular system inspection and maintenance are performed through maintenance channels and inspection ports to ensure the normal operation of all components.

[0087] The sealed door design of the maintenance channel ensures that the overall sealing of the system is not affected during non-maintenance periods.

[0088] 5) Emergency Response

[0089] In an emergency, such as a rapid rise in gas concentration or temperature, the central control system will immediately sound an alarm and automatically initiate emergency ventilation measures.

[0090] Maintenance personnel can quickly enter the system through the maintenance channel to carry out necessary inspections and repairs.

[0091] Through the coordinated work of the above links, the garbage pit roof isolation device system achieves effective isolation, control and purification of harmful gases and heat, ensuring the safety of the superstructure and the health of the surrounding environment.

[0092] The present invention provides a garbage pit roof isolation device system, which is mainly designed to add one or more composite isolation layers under the existing steel structure roof through civil construction to effectively isolate and control the spillage of harmful gases in the garbage pit, and effectively reduce the erosion and damage of harmful gases and liquids in the pit to the original steel structure roof system and the outer protective layer of the roof. This isolation device not only improves the environmental quality, but also protects the main materials of the roof system from corrosion and improves its durability.

[0093] 1) Steel structure roof truss and upper roof outer sheath:

[0094] The existing steel structure roof truss will serve as the upper support for the isolation device (including the partition layer and the ventilation, exhaust and purification facilities in the cavity, etc.), providing structural stability for the partition system. This layer is mainly composed of steel structure roof trusses and steel columns, and can withstand heavy loads.

[0095] The outer roof sheathing layer is made of commonly used industrial building enclosure materials, such as ordinary single-layer corrugated steel plates.

[0096] 2) Partition layer:

[0097] Under the steel structure roof frame, one or more layers of composite civil engineering structures are set up to seal the garbage pit and block the rise of harmful gases.

[0098] The insulation layer is made of corrosion-resistant and high-temperature resistant concrete or special heat-insulating materials, which can be a single layer or a composite of multiple layers. These materials can effectively prevent the penetration and spread of harmful gases.

[0099] Special sealing strips and air barriers are embedded in the partition layer to ensure the sealing effect.

[0100] 3) Ventilation system:

[0101] An efficient ventilation system, including exhaust fans and ventilation ducts, is provided within the partition layer to control and purify the gases rising from the garbage pit.

[0102] The ventilation system is designed with multiple inlets and outlets, evenly distributed around the partition layer to achieve all-round ventilation.

[0103] 4) Monitoring and control system:

[0104] Gas monitoring sensors and temperature sensors are installed at key locations to monitor the gas concentration and temperature in the cavity between the insulation layer and the roof outer sheath in real time.

[0105] A central control system automatically regulates ventilation system operation and monitors gas concentrations to ensure safety standards are met.

[0106] 5) Maintenance channel:

[0107] Dedicated maintenance passages and inspection ports are designed to facilitate daily maintenance and quick response in emergency situations.

[0108] Passageways and inspection ports are equipped with sealed doors to prevent harmful gases from leaking during maintenance.

[0109] Application advantages:

[0110] Environmental protection: effectively isolate and treat harmful gases to reduce the impact on the surrounding environment.

[0111] Improve safety: The main load-bearing steel structural components can withstand the harsh environment in the garbage pit.

[0112] Easy to maintain and operate: Intelligent management of ventilation and monitoring systems reduces the need for manual operation and improves the convenience of safe operation.

[0113] This design provides a practical and effective solution for the garbage pit roof isolation device system.

[0114] like Figure 1 As shown, the isolation device in the cavity above the upper isolation layer of the garbage pit provided by the embodiment of the present invention includes:

[0115] Video monitoring module 1, airtightness detection module 2, main control module 3, air purification module 4, condensate treatment module 5, disinfection module 6, lighting module 7, display module 8.

[0116] The video monitoring module 1 is connected to the main control module 3 and is used to monitor the garbage pit through a camera;

[0117] The airtightness detection module 2 is connected to the main control module 3 and is used to detect the airtightness of the steel structure roof garbage pit isolation device;

[0118] The main control module 3 is connected with the video monitoring module 1, the airtightness detection module 2, the air purification module 4, the condensate treatment module 5, the disinfection module 6, the lighting module 7, and the display module 8, and is used to control the normal operation of each module;

[0119] The air purification module 4 is connected to the main control module 3 and is used to purify the air in the garbage pit;

[0120] The condensate treatment module 5 is connected to the main control module 3 and is used to treat the condensate generated on the roof of the garbage pit;

[0121] The disinfection module 6 is connected to the main control module 3 and is used to disinfect the garbage pit;

[0122] A lighting module 7, connected to the main control module 3, for illuminating the garbage pit;

[0123] The display module 8 is connected to the main control module 3 and is used to display monitoring videos and airtightness detection results.

[0124] like Figure 2 As shown, the airtightness detection module provided by the present invention includes:

[0125] Leak detection module, used to detect leaks in steel structure roof garbage pit isolation devices;

[0126] Sealing performance test module, used to test and evaluate the sealing performance of steel structure roof garbage pit isolation device;

[0127] The alarm module is used to detect leakage or sealing performance that does not meet the requirements and send out an alarm signal to remind the operator to take corresponding measures.

[0128] The leakage detection module detection method provided by the present invention monitors whether there is gas or liquid leakage through various sensors, pressure sensors, flow sensors, and gas detectors.

[0129] The sealing performance test module testing method provided by the present invention evaluates the sealing performance through a pressurization test, a negative pressure test or a water immersion test.

[0130] The alarm module provided by the present invention outputs sound and light alarms, indicator light displays or electronic signals.

[0131] like Figure 3 As shown, the air purification module provided by the present invention includes:

[0132] Air quality detection module, used to detect the air quality of the garbage pit;

[0133] An air filtration module for filtering the air in the garbage pit;

[0134] Air sterilization module, used to sterilize the garbage pit air.

[0135] As another specific embodiment of the present invention, the working principle of the garbage pit roof isolation device system provided is as follows:

[0136] 1) Steel structure roof truss

[0137] The steel structure roof truss serves as the upper support of the isolation device and constitutes the basic framework of the entire system. It carries the partition layer, ventilation system, and monitoring and control system to ensure the stability and reliability of all components in harsh environments.

[0138] 2) Isolation layer

[0139] The isolation layer is set under the steel structure roof truss, and its main function is to block the rise of harmful gases and heat. The isolation layer is made of corrosion-resistant and high-temperature resistant materials, such as cement board, lightweight concrete board or metal board, and has built-in special sealing strips and gas barriers. These materials and components work together to effectively block the upward diffusion of harmful gases and heat in the garbage pit, protecting the upper structure and the surrounding environment.

[0140] 3) Ventilation system

[0141] The ventilation system is embedded in the cavity between the partition layer and the roof outer sheath, ensuring that the air can be effectively circulated and purified while isolating harmful gases. The ventilation system includes exhaust fans and ventilation ducts, and is designed with multiple ventilation inlets and outlets. Through the operation of the exhaust fan, air enters the system from the ventilation inlet, and after purification, it is discharged from the ventilation outlet. This process effectively controls and purifies the gas rising from the garbage pit and reduces the accumulation of harmful substances.

[0142] 4) Monitoring and control system

[0143] The monitoring and control system is the core of the entire isolation device system. It monitors the gas concentration and temperature in the cavity between the isolation layer and the roof outer sheath in real time through gas monitoring sensors and temperature sensors. The data from these sensors are transmitted to the central control system. Based on the monitored data, the central control system automatically adjusts the working state of the ventilation system, such as adjusting the operating speed of the exhaust fan and the opening and closing state of the ventilation duct, to ensure that the gas concentration and temperature in the cavity are always kept within a safe range.

[0144] 5) Maintenance channel

[0145] Maintenance channel has a dedicated maintenance channel and inspection port, equipped with a sealed door, to ensure that during routine maintenance and emergency situations, staff can quickly and safely enter the system for inspection and repair. The design of the sealed door ensures that the sealing of the system is not affected when maintenance is not required.

[0146] 6) Sealing detection module

[0147] The present invention ensures the sealing performance of the isolation device of the garbage pit roof system through a sealing detection module to prevent the leakage of harmful gases. The sealing detection module detects the sealing status of the sealing strip and the air barrier, promptly finds and repairs any leakage points, and ensures the overall sealing effect of the system.

[0148] 7) Condensate treatment module

[0149] The condensate treatment module is used to collect and treat the condensate generated in the garbage pit roof system.

[0150] Detailed workflow:

[0151] 1) Initial state

[0152] After the initial installation of the system, the steel structure roof trusses stably support the partition layer, ventilation system and monitoring and control system.

[0153] The isolation layer effectively blocks the rise of harmful gases and heat in the garbage pit.

[0154] 2) Real-time monitoring

[0155] Gas monitoring sensors and temperature sensors continuously collect gas concentration and temperature data in the cavity between the insulation layer and the roof exterior sheathing.

[0156] Data is transmitted to the central control system in real time.

[0157] 3) Automatic adjustment

[0158] The central control system automatically adjusts the operation of the ventilation system based on the monitored gas concentration and temperature data.

[0159] If the gas concentration or temperature exceeds the set safety range, the system will start the exhaust fan to accelerate air circulation and reduce the gas concentration and temperature.

[0160] Multiple ventilation inlets and outlets of the ventilation ducts ensure efficiency and coverage of air circulation.

[0161] 4) Condensate collection and treatment

[0162] The condensate treatment module collects condensate generated in the cavity between the partition layer and the roof outer sheathing layer.

[0163] The condensed water is treated by professional treatment equipment.

[0164] 5) Daily maintenance

[0165] Regular system inspection and maintenance are performed through maintenance channels and inspection ports to ensure the normal operation of all components.

[0166] The sealed door design of the maintenance channel ensures that the overall sealing of the system is not affected during non-maintenance periods.

[0167] 6) Emergency Response

[0168] In an emergency, such as a rapid rise in gas concentration or temperature, the central control system will immediately sound an alarm and automatically initiate emergency ventilation measures.

[0169] Maintenance personnel can quickly enter the system through the maintenance channel to carry out necessary inspections and repairs.

[0170] Through the coordinated work of the above links, the garbage pit roof isolation device system achieves effective isolation, control and purification of harmful gases and heat, ensuring the safety of the superstructure and the health of the surrounding environment. The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent replacement and improvement made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A garbage pit roof isolation device system, characterized in that: include: Steel structure roof trusses, serving as upper support for the isolation device; The isolation layer is set under the steel structure roof frame and is made of corrosion-resistant and high-temperature resistant cement board, lightweight concrete board, metal board or other special heat-insulating and corrosion-resistant materials. It has built-in special sealing strips and gas barriers to block the rise of harmful gases; A ventilation system, embedded in the cavity between the partition layer and the roof envelope, including exhaust fans and ventilation ducts, designed with multiple ventilation inlets and outlets for controlling and purifying the gases rising from the garbage pit; A monitoring and control system, including a gas monitoring sensor and a temperature sensor, connected to the central control system, for real-time monitoring of the gas concentration and temperature in the cavity between the insulation layer and the roof outer sheathing layer and automatic adjustment of the ventilation system; Maintenance passages, dedicated maintenance passages and inspection ports with sealed doors, are set up for daily maintenance and rapid response in emergency situations.

2. The garbage pit roof isolation device system according to claim 1, characterized in that: The ventilation inlets and outlets of the ventilation system above the partition layer are evenly distributed around the cavity above the partition layer. The ventilation system can automatically adjust the operating speed and mode through the central control system to optimize the circulation and purification effects of the gas; the monitoring and control system further includes a user interface that allows the operator to adjust the ventilation settings and monitor real-time data, as well as generate and receive automatic alarms to respond to potential safety issues.

3. The garbage pit roof isolation device system according to claim 1, characterized in that: The steel structure roof garbage pit isolation device also includes: Video monitoring module, airtightness detection module, main control module, air purification module, condensate treatment module, disinfection module, lighting module, display module; A video monitoring module, connected to the main control module, for performing video monitoring of the garbage pit through a camera; The airtightness detection module is connected to the main control module and is used to detect the airtightness of the garbage pit isolation device on the steel structure roof; The main control module is connected with the video monitoring module, the airtightness detection module, the air purification module, the condensate treatment module, the disinfection module, the lighting module, and the display module to control the normal operation of each module; An air purification module, connected to the main control module, is used to purify the air in the garbage pit; The condensed water treatment module is used to collect the condensed water generated on the roof of the garbage pit and is connected to the main control module to perform reasonable discharge treatment on the garbage pit; A lighting module, connected to the main control module, for lighting the cavity during maintenance; The display module is connected to the main control module and is used to display monitoring videos and airtightness detection results.

4. The steel structure roof garbage pit isolation device as claimed in claim 3, characterized in that: The airtightness detection module comprises: Leak detection module, used to detect leaks in steel structure roof garbage pit isolation devices; Sealing performance test module, used to test and evaluate the sealing performance of steel structure roof garbage pit isolation device; The alarm module is used to detect leakage or sealing performance that does not meet the requirements and send out an alarm signal to remind the operator to take corresponding measures; the leakage detection module detection method uses various sensors, pressure sensors, flow sensors, and gas detectors to monitor whether there is gas or liquid leakage.

5. The steel structure roof garbage pit isolation device as claimed in claim 4, characterized in that: The sealing performance test module test method evaluates the sealing performance through a pressure test, a negative pressure test or a water immersion test.

6. The steel structure roof garbage pit isolation device as claimed in claim 4, characterized in that: The alarm module outputs sound and light alarms, indicator lights or electronic signals; the air purification module includes: An air quality detection module, used to detect the air quality in the cavity; An air filter module, used for filtering the air in the cavity; The air sterilization module is used to sterilize the air in the cavity.

7. The steel structure roof garbage pit isolation device as claimed in claim 1, characterized in that: The condensate treatment module treatment method includes collection and reasonable discharge.

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