Intelligent ventilation system for internal construction of box girder

Abstract

The utility model relates to the technical field of road construction, in particular to an intelligent ventilation system for internal construction of a box girder, which comprises a data acquisition module, a gas analysis and control module, an indication module, a transmission module and a ventilation system, the gas analysis and control module is in signal connection with the data acquisition module and is used for analyzing the air quality data; the indication module is in signal connection with the gas analysis and control module; the transmission module is in signal connection with the gas analysis and control module; the ventilation system is in signal connection with the transmission module; wherein the indication module displays a corresponding indication lamp color according to an analysis result of the gas analysis and control module; the transmission module sends a starting signal to the ventilation system when the gas analysis and control module judges that the air quality is unqualified, and the system can improve the air quality in the box girder in time, guarantee the safety of constructors and remarkably reduce energy consumption at the same time.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to an intelligent ventilation system for the internal construction of box girders. Background Technology

[0002] Due to the enclosed nature of box girder construction, poor internal air circulation can easily lead to the accumulation of harmful gases during welding, spraying, and other operations. Currently, air quality monitoring inside box girders primarily relies on fixed-point gas detectors, with the ventilation system controlled manually. This monitoring and control method has the following drawbacks: construction personnel need to periodically check the data and manually activate the ventilation system; due to the lag in manual judgment and operation, harmful gases can accumulate for extended periods. Furthermore, manual control of the ventilation system can easily lead to energy waste due to improper operation. Utility Model Content

[0003] This invention provides an intelligent ventilation system for the construction of box girders. This intelligent ventilation system can improve the air quality inside the box girder in a timely manner, ensure the safety of construction personnel, and significantly reduce energy consumption.

[0004] This utility model embodiment provides an intelligent ventilation system for the construction of a box girder, comprising: a data acquisition module for collecting air quality data inside the box girder; a gas analysis and control module connected to the data acquisition module for analyzing the air quality data; an indicator module connected to the gas analysis and control module, including a green indicator light and a yellow indicator light; a transmission module connected to the gas analysis and control module; and a ventilation system connected to the transmission module. The indicator module displays the corresponding indicator light color based on the analysis results of the gas analysis and control module. When the gas quality is acceptable, the green indicator light illuminates; when the gas quality is unacceptable, the yellow indicator light illuminates. The transmission module sends an activation signal to the ventilation system when the gas analysis and control module determines that the air quality is unacceptable.

[0005] In one possible implementation, the indicator module also includes a red indicator light, which illuminates when the gas analysis and control module determines that the air quality has reached a dangerous state.

[0006] In one possible implementation, a timing module is also included, which is connected to the gas analysis and control module via a signal. The timing module starts timing after the ventilation system is turned on. A buzzer module is also connected to the gas analysis and control module via a signal. The buzzer module issues an alarm when the preset time is reached and the air quality does not meet the standard.

[0007] In one possible implementation, the data acquisition module, gas analysis and control module, indicator module, and transmission module are integrated into the same monitoring instrument.

[0008] In one possible implementation, the data acquisition module includes an oxygen sensor, a carbon monoxide sensor, a hydrogen sulfide sensor, and a temperature and humidity sensor.

[0009] In one possible implementation, the ventilation system includes a controller and a fan assembly, the controller being used to receive signals from the transmission module and control the operation of the fan assembly.

[0010] In one possible implementation, the fan assembly includes multiple fans, which are respectively installed at the air inlet and air outlet ends of the box girder.

[0011] In one possible implementation, the transmission module includes a primary transmission module and a backup transmission module, wherein the primary transmission module is a Bluetooth transmission module and the backup transmission module is a wired transmission module.

[0012] In one possible implementation, the monitoring instrument includes an explosion-proof enclosure with a fixing device for securing it to a construction worker.

[0013] In one possible implementation, it further includes: a display module, which is signal-connected to the gas analysis and control module, and displays real-time air quality data; and a storage module, which is signal-connected to the gas analysis and control module, and records historical monitoring data.

[0014] This utility model provides an intelligent ventilation system for the internal construction of box girders. When construction work is carried out inside the box girder, the data acquisition module continuously collects air quality data, and the gas analysis and control module analyzes the data in real time and transmits the analysis results to the indicator and transmission modules. For example, during welding work on the inner wall of the box girder, the gradual accumulation of welding fumes leads to a decline in air quality. At this time, the indicator module displays indicator lights of corresponding colors based on the gas analysis results, allowing construction personnel to intuitively understand the current air quality status. When the analysis results show that the air quality is unqualified, the transmission module automatically sends an activation signal to the ventilation system to start the ventilation operation without manual intervention. Automatic monitoring and control replace manual judgment and operation, avoiding the lag of manual operation. For example, when the concentration of harmful gases reaches the warning value, the system can immediately start ventilation, preventing delays in handling due to construction personnel not checking the data in time. The intelligent control of the ventilation system's start and stop enables on-demand ventilation. The ventilation system is only activated when the air quality is unqualified, avoiding the energy waste caused by traditional timed start / stop or continuous operation. When the air quality returns to normal, the system automatically shuts down the ventilation equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an intelligent ventilation system for the internal construction of a box girder, provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of a monitoring instrument provided by this utility model.

[0018] Figure 3 This utility model provides a control block diagram of an intelligent ventilation system for the internal construction of box girders.

[0019] Figure label:

[0020] 1. Data acquisition module; 2. Gas analysis and control module; 3. Indicator module; 31. Green indicator light; 32. Yellow indicator light; 33. Red indicator light; 4. Transmission module; 5. Ventilation system; 6. Timing module; 7. Buzzer module; 8. Monitoring instrument; 81. Explosion-proof enclosure; 82. Fixing device; 9. Display module; 10. Storage module. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] The following is combined Figure 1-3This invention describes an intelligent ventilation system 5 for the construction of a box girder, comprising: a data acquisition module 1 for acquiring air quality data inside the box girder; a gas analysis and control module 2 connected to the data acquisition module 1 for analyzing the air quality data; an indicator module 3 connected to the gas analysis and control module 2, including a green indicator light 31 and a yellow indicator light 32; a transmission module 4 connected to the gas analysis and control module 2; and a ventilation system 5 connected to the transmission module 4. The indicator module 3 displays the corresponding indicator light color based on the analysis results of the gas analysis and control module 2. When the gas quality is acceptable, the green indicator light 31 of the indicator module 3 illuminates; when the gas quality is unacceptable, the yellow indicator light 32 of the indicator module 3 illuminates. The transmission module 4 sends an activation signal to the ventilation system 5 when the gas analysis and control module 2 determines that the air quality is unacceptable.

[0023] In this embodiment of the invention, the automatic monitoring and ventilation control of the air quality inside the box girder is achieved through the coordinated operation of the data acquisition module 1, the gas analysis and control module 2, the indicator module 3, the transmission module 4, and the ventilation system 5. When construction workers are performing welding operations inside the box girder, the welding fumes will reduce the air quality inside the box girder. At this time, the data acquisition module 1 can collect air data in real time, and the gas analysis and control module 2 analyzes the data and displays different colored indicator lights through the indicator module 3. For example, when the welding fumes accumulate to a certain level and cause the air quality to be substandard, the yellow indicator light 32 lights up, and at the same time, the transmission module 4 automatically sends an activation signal to the ventilation system 5 to start the ventilation operation. This automatic monitoring and control method avoids the lag of traditional manual judgment and manual activation of the ventilation system 5, and can improve the air quality inside the box girder in a timely manner, ensuring the safety of construction workers. In addition, since the system only activates ventilation when the air quality is substandard, it can significantly reduce energy consumption compared to the traditional continuous operation mode.

[0024] Furthermore, the modular design, with each module connected via signal links to form a closed-loop control system, enhances system reliability. Even when construction workers are focused on their tasks and neglect inspections, the system maintains normal operation, continuously ensuring the safety of the construction environment.

[0025] In some embodiments, the indicator module 3 further includes a red indicator light 33, which is activated when the gas analysis and control module 2 determines that the air quality has reached a dangerous state.

[0026] In this embodiment of the invention, a red indicator light 33 is added for warning of hazardous conditions. When epoxy resin anti-corrosion work is carried out inside the box girder, a large amount of toxic gas may be released. If the ventilation system 5 fails to effectively reduce the concentration of toxic gas, the red indicator light 33 illuminates, visually reminding construction personnel that the current environment has reached a hazardous state. This three-level warning mechanism (green-yellow-red) is more refined than a simple pass / fail dual-color indication, enabling construction personnel to more accurately judge the current environmental conditions and take timely appropriate measures. Especially inside the box girder where lighting is insufficient, the conspicuous red indicator light 33 allows construction personnel to quickly identify danger signals.

[0027] Specifically, the indicator module 3 may have only one indicator light, and the green indicator light 31, yellow indicator light 32 or red indicator light 33 may be lit by controlling the color of the indicator light; the indicator module 3 may also include three indicator lights, namely green indicator light 31, yellow indicator light 32 and red indicator light 33.

[0028] In some embodiments, the system further includes a timing module 6, which is connected to the gas analysis and control module 2 by signal, and the timing module 6 starts timing after the ventilation system 5 is turned on; and a buzzer module 7, which is connected to the gas analysis and control module 2 by signal, and the buzzer module 7 issues an alarm when the timing reaches a preset time and the air quality does not meet the standard.

[0029] In this embodiment of the invention, a mechanism for evaluating ventilation effectiveness and providing audible warnings is established by adding a timing module 6 and a buzzer module 7. When waterproof coating is being sprayed inside the box girder, if the air quality still does not meet the standard after fifteen minutes of operating the ventilation system 5, it indicates a potential problem with the current ventilation method (such as fan blockage or pipe kinking). At this time, the buzzer module 7 sounds an alarm to remind construction personnel to check the ventilation system 5 or take other emergency measures. This combined sound and light warning method is more reliable than simple visual cues, allowing construction personnel to promptly detect abnormalities even when their attention is focused on the work. Simultaneously, the timing function can help construction managers assess the required ventilation time under different working conditions, providing reference data for optimizing construction processes.

[0030] Specifically, the gas analysis and control module 2 integrates data processing functions to receive timing information from the timing module 6. If the gas is still unqualified within a preset time, it controls the buzzer module 7 to start and controls the red indicator light 33 to light up.

[0031] In some embodiments, the data acquisition module 1, the gas analysis and control module 2, the indicator module 3, and the transmission module 4 are integrated into the same monitoring instrument 8.

[0032] In this embodiment of the invention, by integrating various functional modules into a single monitoring instrument 8, the portability and practicality of the system are improved. When construction workers need to move between multiple work positions within the box girder, the integrated monitoring instrument 8 can be carried with them, ensuring that the workers are always within the monitoring and protection range. Compared to the method of distributing individual modules, the integrated design not only reduces the wiring between devices and lowers the difficulty of installation and maintenance, but also improves the reliability of the system. For example, when laying prestressed steel bars within the box girder, construction workers need to frequently change their working positions; the integrated monitoring instrument 8 can monitor the surrounding environment in real time, eliminating the need to deploy multiple sets of monitoring equipment within the box girder.

[0033] Specifically, the monitoring instrument 8 integrates a power module to provide power to each power-consuming module.

[0034] In some embodiments, the data acquisition module 1 includes an oxygen sensor, a carbon monoxide sensor, a hydrogen sulfide sensor, and a temperature and humidity sensor.

[0035] In this embodiment of the invention, comprehensive air quality monitoring is achieved by configuring multiple sensors. Different construction processes may generate different types of harmful gases. During concrete cutting operations, the main focus is on dust and oxygen content; during corrosion prevention operations, the focus is on monitoring toxic gases; and monitoring temperature and humidity helps determine ventilation effectiveness. The configuration of multiple sensors enables the system to cope with various construction scenarios, providing comprehensive protection for construction safety. Furthermore, the combined analysis of data from different sensors can help determine the causes of environmental degradation, providing a basis for taking targeted improvement measures.

[0036] In some embodiments, the ventilation system 5 includes a controller and a fan assembly, wherein the controller is used to receive signals from the transmission module 4 and control the operation of the fan assembly.

[0037] In this embodiment of the invention, the configuration of the controller and fan assembly enables intelligent control of the ventilation system 5. When multiple workstations within the box girder are under construction simultaneously, the controller can adjust the fan's operating status based on signals sent by the transmission module 4. This automatic control method avoids the inconvenience of manual fan operation and ensures that the ventilation system 5 can respond promptly to environmental changes. The controller can also adjust the fan speed according to different conditions, reducing energy consumption and extending equipment lifespan while ensuring effective ventilation.

[0038] In some embodiments, the fan assembly includes multiple fans, which are respectively installed at the air inlet and air outlet ends of the box girder.

[0039] In this embodiment of the invention, multiple fans are installed at the air inlet and outlet ends of the box girder to form a reasonable ventilation system. For example, during construction inside a box girder exceeding 100 meters in length, the coordinated operation of multiple fans can create effective airflow. The fans at the air inlet deliver fresh air, while the fans at the air outlet extract stale air; this bidirectional ventilation method is more efficient than unidirectional ventilation. Especially in areas with poor airflow, such as the curves of the box girder, the rationally arranged multiple fans can avoid dead zones in ventilation. This design not only improves ventilation efficiency but also reduces the load on a single fan, extending the service life of the equipment.

[0040] In some embodiments, the transmission module 4 includes a primary transmission module and a backup transmission module, wherein the primary transmission module is a Bluetooth transmission module and the backup transmission module is a wired transmission module.

[0041] In this embodiment of the invention, the reliability of the system is improved by configuring primary and backup transmission modules. Bluetooth transmission has the advantages of convenient operation and no wiring required, making it suitable for daily use. However, in certain special circumstances, such as strong electromagnetic interference or insufficient battery power, Bluetooth transmission may be affected. In such cases, the backup wired transmission module can ensure the normal operation of the system. For example, when performing electric welding operations inside a box girder, strong electromagnetic interference may affect the Bluetooth signal. In this case, the system can be switched to wired transmission mode to ensure continuous and reliable operation.

[0042] In some embodiments, the monitoring instrument 8 includes an explosion-proof housing 81, which is provided with a fixing device 82 for securing it to a construction worker.

[0043] In this embodiment of the invention, the design of the explosion-proof housing 81 and the fixing device 82 improves the safety and ease of use of the equipment. When performing flammable and explosive operations such as painting inside the box girder, the explosion-proof housing 81 prevents the equipment from generating sparks, avoiding safety accidents. Simultaneously, the fixing device 82 securely mounts the monitoring instrument 8 onto the work clothes or safety helmets of construction workers, without affecting normal operations, and ensures that the monitoring equipment is always in an effective working state. This design is particularly suitable for construction scenarios requiring two-handed operation, such as bolt tightening or rebar tying, without requiring the worker to pay attention to the placement of the monitoring equipment.

[0044] In some embodiments, the system further includes: a display module 9, which is signal-connected to the gas analysis and control module 2, and displays real-time air quality data; and a storage module 10, which is signal-connected to the gas analysis and control module 2, and records historical monitoring data.

[0045] In this embodiment of the invention, the configuration of the display module 9 and the storage module 10 enables real-time data display and historical data recording. The display module 9 allows construction workers to intuitively understand the current air quality data. For example, during waterproofing layer construction, workers can view the specific concentration values ​​of organic solvents in real time and adjust the construction pace according to data trends. The historical data recorded by the storage module 10 can be used for construction management and safety analysis. For instance, by analyzing the air quality change patterns at different times and during different processes, construction techniques can be optimized, and more targeted safety protection measures can be developed. This data can also serve as an archive for construction safety management, providing objective evidence for assessing the construction environment and handling safety accidents.

[0046] When construction work is carried out inside the box girder, the data acquisition module 1 continuously collects air quality data, and the gas analysis and control module 2 analyzes the data in real time and transmits the analysis results to the indicator module 3 and the transmission module 4. For example, during welding work on the inner wall of the box girder, the gradual accumulation of welding fumes will cause the air quality to decline. At this time, the indicator module 3 displays an indicator light of the corresponding color based on the gas analysis results, allowing construction personnel to intuitively understand the current air quality status. When the analysis results show that the air quality is unqualified, the transmission module 4 automatically sends an activation signal to the ventilation system 5 to start the ventilation operation without manual intervention. Automatic monitoring and control replace manual judgment and manual operation, avoiding the lag of manual operation. For example, when the concentration of harmful gases reaches the warning value, the system can immediately start ventilation, without delaying the handling time due to the construction personnel not checking the data in time. The intelligent control of the start and stop of the ventilation system 5 realizes on-demand ventilation. The ventilation system 5 is only activated when the air quality is unqualified, avoiding the energy waste caused by traditional timed start and stop or continuous operation. When the air quality returns to normal, the system will automatically shut down the ventilation equipment.

[0047] The device embodiments described above are merely illustrative. 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 modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An intelligent ventilation system for the construction of box girders, characterized in that, include: The data acquisition module (1) is used to collect air quality data inside the box girder; The gas analysis and control module (2) is connected to the data acquisition module (1) by signal and is used to analyze the air quality data; The indicator module (3) is connected to the gas analysis and control module (2) by signal and includes a green indicator light (31) and a yellow indicator light (32). The transmission module (4) is connected to the gas analysis and control module (2) via signal transmission. The ventilation system (5) is connected to the transmission module (4) via a signal. The indicator module (3) displays the corresponding indicator light color according to the analysis result of the gas analysis and control module (2). When the gas is qualified, the green indicator light (31) of the indicator module (3) lights up, and when the gas is unqualified, the yellow indicator light (32) of the indicator module (3) lights up. When the gas analysis and control module (2) determines that the air quality is unqualified, the transmission module (4) sends an activation signal to the ventilation system (5); The data acquisition module (1), gas analysis and control module (2), indicator module (3) and transmission module (4) are integrated in the same monitoring instrument (8); the monitoring instrument (8) includes an explosion-proof housing (81), and the explosion-proof housing (81) is provided with a fixing device (82) for fixing to the construction personnel.

2. The intelligent ventilation system for internal construction of box girders according to claim 1, characterized in that: The indicator module (3) also includes a red indicator light (33), which is activated when the gas analysis and control module (2) determines that the air quality has reached a dangerous state.

3. The intelligent ventilation system for internal construction of box girders according to claim 1, characterized in that, Also includes: The timing module (6) is connected to the gas analysis and control module (2) by signal. The timing module (6) starts timing after the ventilation system (5) is turned on. The buzzer module (7) is connected to the gas analysis and control module (2) by signal. The buzzer module (7) issues an alarm when the preset time is reached and the air quality does not meet the standard.

4. The intelligent ventilation system for internal construction of box girders according to claim 1, characterized in that: The data acquisition module (1) includes an oxygen sensor, a carbon monoxide sensor, a hydrogen sulfide sensor, and a temperature and humidity sensor.

5. The intelligent ventilation system for internal construction of box girders according to claim 1, characterized in that: The ventilation system (5) includes a controller and a fan assembly. The controller is used to receive signals from the transmission module (4) and control the operation of the fan assembly.

6. The intelligent ventilation system for internal construction of box girders according to claim 5, characterized in that: The fan assembly includes multiple fans, which are respectively installed at the air inlet and air outlet ends of the box girder.

7. The intelligent ventilation system for internal construction of box girders according to claim 1, characterized in that: The transmission module (4) includes a primary transmission module and a backup transmission module. The primary transmission module is a Bluetooth transmission module, and the backup transmission module is a wired transmission module.

8. The intelligent ventilation system for internal construction of box girders according to any one of claims 1-7, characterized in that, Also includes: The display module (9) is connected to the gas analysis and control module (2) by signal, and the display module (9) displays real-time air quality data; The storage module (10) is connected to the gas analysis and control module (2) by signal, and the storage module (10) records historical monitoring data.

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