Explosion suppression grading protection system and method

Abstract

The invention belongs to the technical field of safety prevention and control of flammable and explosive environments, and particularly relates to an explosion suppression grading protection system and method, and the system comprises a monitoring module which monitors the environment information in a to-be-monitored area; the signal processing module is used for generating a grading early warning instruction according to the environment information; the explosion suppression execution module is used for executing an explosion suppression action according to the grading early warning instruction; and the reset module is used for generating reset information so as to reset the explosion suppression execution module. On the basis of cooperation of the monitoring module, the signal processing module and the explosion suppression execution module, corresponding explosion suppression actions can be automatically triggered, manual intervention is not needed, a complete and rapid safety protection closed loop from risk perception to active suppression is achieved, the speed and reliability from risk discovery to active intervention are remarkably improved, and the safety protection effect is improved. And the safety risk of the to-be-monitored area is greatly reduced. Based on the cooperation of the reset module, the signal processing module and the explosion suppression execution module, the standby state can be quickly recovered after explosion suppression is completed, the maintenance steps are simplified, and the use cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of safety control technology for flammable and explosive environments, and particularly relates to an explosion suppression graded protection system and method. Background Technology

[0002] In petrochemical, energy storage power station, and dust-generating industrial scenarios, the leakage and accumulation of combustible gases or dust are the main risks leading to combustion and explosion accidents. Existing early warning and protection devices typically rely on single environmental information combined with complex artificial intelligence algorithms for risk prediction. However, this approach involves complex algorithms, high development costs, and requires extensive data training. Furthermore, its core is a software method, making rapid deployment and application difficult in large industrial settings with high reliability, real-time requirements, and limited budgets. Moreover, existing early warning and protection devices often only indicate risks without providing protective functions, leaving the monitored area still at significant risk. Summary of the Invention

[0003] This application aims to provide a graded explosion suppression protection system and method, which achieves an effective closed loop of risk prevention and control, and greatly reduces the safety risks in the monitoring area.

[0004] The first aspect of this application provides a graded explosion suppression protection system, comprising: a monitoring module, configured to be installed in a monitored area to monitor environmental information within the monitored area; a signal processing module, connected to the monitoring module, configured to generate graded early warning commands based on the environmental information monitored by the monitoring module; an explosion suppression execution module, connected to the signal processing module, configured to execute explosion suppression actions based on the graded early warning commands generated by the signal processing module; and a reset module, connected to the signal processing module, configured to generate reset information after the explosion suppression execution module completes the explosion suppression actions, so that the signal processing module controls the explosion suppression execution module to reset.

[0005] In an optional embodiment of this application, the monitoring module includes: a mounting base; a gas concentration sensor mounted on the mounting base for monitoring gas concentration information in the area to be monitored; an infrared thermal imaging sensor mounted on the mounting base for monitoring temperature information in the area to be monitored; and a micro-differential pressure sensor mounted on the mounting base for monitoring pressure changes in the area to be monitored. The gas concentration sensor, the infrared thermal imaging sensor, and the micro-differential pressure sensor are arranged in a triangular pattern on the mounting base.

[0006] In an optional embodiment of this application, the gas concentration sensor, the infrared thermal imaging sensor, and the micro differential pressure sensor are arranged in an equilateral triangle on the mounting substrate.

[0007] In an optional embodiment of this application, the signal processing module includes: a signal conditioner, used to preprocess the information monitored by the gas concentration sensor, the infrared thermal imaging sensor, and the micro differential pressure sensor respectively to obtain first information, second information, and third information respectively; a comparator, used to compare the first information, the second information, and the third information with corresponding preset alarm thresholds respectively, and generate corresponding comparison result signals, wherein the comparison result signals are digital level signals; and a decision unit, used to generate graded early warning instructions based on the received comparison result signals.

[0008] In an optional embodiment of this application, the preset alarm threshold includes a first alarm threshold, a second alarm threshold, and a third alarm threshold. The decision-maker is configured to: generate a level-one warning instruction when the first information is not less than the first alarm threshold, the second information is less than the second alarm threshold, and the third information is less than the third alarm threshold; generate a level-two warning instruction when any one of the first, second, and third information is not less than its corresponding alarm threshold; and generate a level-three warning instruction when the first information is not less than the first alarm threshold, the second information is not less than the second alarm threshold, and the third information is not less than the third alarm threshold.

[0009] In an optional embodiment of this application, the explosion suppression execution module includes: a warning light, used to activate upon receiving a Level 1 warning command generated by the decision-maker; an audible and visual alarm, used to activate upon receiving Level 2 and Level 3 warning commands generated by the decision-maker; and an explosion suppression device, used to activate explosion suppression upon receiving a Level 3 warning command generated by the decision-maker.

[0010] In an optional embodiment of this application, the reset module is disposed within the tank of the explosion suppression device and includes: a reset sensor disposed on the tank; a piston plate movably disposed on the tank and opposite to the reset sensor; a spring disposed between the piston plate and the tank; and a piston rod connected to the piston plate and facing the reset sensor. The piston plate is configured to drive the piston rod to move relative to the reset sensor under external force. When the reset sensor contacts the piston rod, it generates reset information and transmits it to the signal processing module, so that the signal processing module controls the explosion suppression execution module to perform a reset.

[0011] In an optional embodiment of this application, the side of the piston plate away from the reset sensor and the tank body form a storage cavity. The piston plate is configured to be subjected to a force by the explosion suppressant when the explosion suppressant is filled in the storage cavity, so as to drive the piston rod to move relative to the reset sensor.

[0012] In an optional embodiment of this application, the reset module further includes a manual reset mechanism, which is connected to the piston plate. The piston plate is configured to drive the piston rod to move relative to the reset sensor under the action of the manual reset mechanism.

[0013] A second aspect of this application provides a method for graded explosion suppression protection, which is configured in the aforementioned graded explosion suppression protection system and includes: acquiring environmental information within a monitored area; generating a graded early warning command based on the environmental information within the monitored area; executing a corresponding explosion suppression action based on the graded early warning command; generating reset information after the explosion suppression action is completed, and controlling the explosion suppression graded protection system to reset based on the reset information.

[0014] In an optional embodiment of this application, the environmental information within the monitoring area includes gas concentration information, temperature information, and pressure change information. Generating a tiered early warning instruction based on the environmental information within the monitoring area includes: preprocessing the gas concentration information, temperature information, and pressure change information within the monitoring area to obtain first information, second information, and third information, respectively; comparing the first information, second information, and third information with corresponding preset alarm thresholds to obtain corresponding comparison result signals, wherein the comparison result signals are digital level signals; and generating the tiered early warning instruction based on the received comparison result signals. The preset alarm thresholds include a first alarm threshold, a second alarm threshold, and a third alarm threshold. A first-level early warning instruction is generated when the first information is not less than the first alarm threshold, the second information is less than the second alarm threshold, and the third information is less than the third alarm threshold. A second-level early warning instruction is generated when any one of the first information, second information, and third information is not less than the corresponding alarm threshold. A third-level early warning instruction is generated when the first information is not less than the first alarm threshold, the second information is not less than the second alarm threshold, and the third information is not less than the third alarm threshold.

[0015] In summary, the solution provided in this application has at least the following beneficial effects:

[0016] In the explosion suppression graded protection system provided in this application, the corresponding explosion suppression actions can be automatically triggered based on the cooperation between the monitoring module, signal processing module, and explosion suppression execution module, without manual intervention. This achieves a complete and rapid safety protection closed loop from risk perception to active suppression, significantly improving the speed and reliability from risk detection to active intervention, and greatly reducing the safety risks in the monitored area. Furthermore, based on the cooperation between the reset module, signal processing module, and explosion suppression execution module, the system can quickly return to standby status after the explosion suppression action is completed, simplifying maintenance steps and significantly reducing long-term operating costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the specific embodiments of this application, the drawings used in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the explosion suppression graded protection system provided according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a mounting base plate in a graded explosion suppression protection system provided according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram illustrating the interaction between the monitoring module, signal processing module, and explosion suppression execution module in the explosion suppression graded protection system provided according to an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the reset module in the explosion suppression graded protection system provided according to an embodiment of this application;

[0022] Figure 5 This is a flowchart illustrating the explosion suppression graded protection method provided according to an embodiment of this application.

[0023] The attached icons are numbered as follows:

[0024] 100. Explosion suppression graded protection system;

[0025] 1. Monitoring module; 11. Mounting base plate; 111. First mounting position; 112. Second mounting position; 113. Third mounting position; 12. Gas concentration sensor; 13. Infrared thermal imaging sensor; 14. Micro differential pressure sensor;

[0026] 2. Signal processing module; 21. Signal conditioner; 211. First signal conditioning unit; 212. Second signal conditioning unit; 213. Third signal conditioning unit; 22. Comparator; 23. Decision unit;

[0027] 3. Explosion suppression execution module; 31. Warning light; 32. Audible and visual alarm; 33. Explosion suppression device; 34. Storage chamber; 35. Injection port; 36. Filling port;

[0028] 4. Reset module; 41. Reset sensor; 42. Piston plate; 43. Spring; 44. Piston rod;

[0029] 5. Power supply module;

[0030] 6. Outer shell. Detailed Implementation

[0031] To make the above and other features and advantages of this application clearer, the application is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0032] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects.

[0033] This application provides an explosion suppression graded protection system, which is installed in the area to be monitored and provides an active safety protection closed loop of "sensing-decision-suppression-reset". It can significantly improve the speed and reliability from risk detection to active intervention, and can greatly reduce the safety risks of the area to be monitored. Therefore, it can be widely used in chemical production, energy storage power stations, dust operations and other fields.

[0034] Figure 1 For a schematic diagram of the explosion suppression graded protection system provided according to the embodiments of this application, please refer to [link / reference]. Figure 1 The explosion suppression graded protection system 100 may include a monitoring module 1, a signal processing module 2, an explosion suppression execution module 3, and a reset module 4.

[0035] Monitoring module 1 is installed in the area to be monitored to monitor environmental information within that area. The area to be monitored can be a critical risk area involved in chemical production, energy storage power stations, dust operations, etc. The critical risk area can be the location of chemical production pipeline valve groups, energy storage containers, dust collectors, etc. The environmental information within the area to be monitored can include, but is not limited to, gas concentration information, temperature information, and air pressure change information.

[0036] Signal processing module 2 is connected to monitoring module 1 and can receive environmental information sent by monitoring module 1. It then performs real-time, online analysis and decision-making based on the received environmental information to generate tiered early warning commands. Specifically, the tiered early warning commands can indicate the risk level of the monitored area, such as level one, two, three, or higher.

[0037] The explosion suppression execution module 3 is connected to the signal processing module 2 and is used to execute explosion suppression actions according to the graded warning commands generated by the signal processing module 2. That is, the explosion suppression execution module 3 can execute different explosion suppression actions according to the different graded warning commands received. The explosion suppression actions may include, but are not limited to, warning light prompts, sound prompts, and physical explosion suppression actions.

[0038] The reset module 4 is connected to the signal processing module 2 and is used to generate reset information after the explosion suppression execution module 3 has completed the explosion suppression action, so that the signal processing module 2 can control the explosion suppression execution module 3 to reset.

[0039] In the explosion suppression graded protection system 100 of this application, based on the cooperation between the monitoring module 1, the signal processing module 2, and the explosion suppression execution module 3, corresponding explosion suppression actions can be automatically triggered without manual intervention. This achieves a complete and rapid safety protection closed loop from risk perception to active suppression, thereby significantly improving the speed and reliability from risk detection to active intervention and greatly reducing the safety risks in the monitored area. Furthermore, based on the cooperation between the reset module 4, the signal processing module 2, and the explosion suppression execution module 3, the system can quickly return to standby status after the explosion suppression action is completed, simplifying maintenance steps and significantly reducing long-term operating costs.

[0040] In some embodiments, please refer to Figure 1 The monitoring module 1 may include a mounting base plate 11, a gas concentration sensor 12, an infrared thermal imaging sensor 13, and a micro differential pressure sensor 14.

[0041] Mounting substrate 11 serves as a mounting carrier for gas concentration sensor 12, infrared thermal imaging sensor 13, and micro differential pressure sensor 14, allowing the three to be integrated into the same mounting space. Specifically, mounting substrate 11 is a plate-shaped structure made of aluminum alloy. Mounting substrate 11 can be a circular plate-shaped structure or a triangular plate-shaped structure, but is not limited to these.

[0042] Gas concentration sensor 12 is used to monitor gas concentration information in the area to be monitored, infrared thermal imaging sensor 13 is used to monitor temperature information in the area to be monitored, and micro differential pressure sensor 14 is used to monitor pressure change information in the area to be monitored. The gas concentration sensor 12, infrared thermal imaging sensor 13, and micro differential pressure sensor 14 are fixedly mounted at different positions on the mounting substrate 11 and are arranged in a triangular pattern on the mounting substrate 11.

[0043] In other words, the gas concentration sensor 12, the infrared thermal imaging sensor 13, and the micro differential pressure sensor 14 form a stable triangular layout on the mounting base plate 11 at their three mounting positions. Each mounting position may include a threaded hole for securing the sensor to achieve rigid mounting, a through hole for the sensor cable to pass through to ensure reliable electrical connection, and a positioning pin hole for positioning to ensure mounting accuracy.

[0044] In this embodiment, the monitoring hardware for three physical quantities—gas concentration sensor 12, infrared thermal imaging sensor 13, and differential pressure sensor 14—is integrated into a triangular layout. This ensures temporal and spatial alignment of the three heterogeneous sensors over the same monitoring area, enabling simultaneous acquisition of multiple physical information and laying a physical foundation for subsequent reliable judgment. This improves the risk protection accuracy of the explosion suppression grading protection system 100. Furthermore, this explosion suppression grading protection system 100 does not rely on complex software algorithms. Instead, it achieves rapid and reliable risk judgment by combining the specific hardware layout of gas, infrared, and micro-pressure sensors with the signal processing module 2. This directly drives the explosion suppression execution module 3 to perform graded response actions, significantly improving the speed and reliability from risk detection to proactive intervention and greatly reducing the safety risks in the monitored area.

[0045] Figure 2 For a schematic diagram of a mounting base plate in a graded explosion suppression protection system according to an embodiment of this application, please refer to [link / reference]. Figure 1 and Figure 2 The gas concentration sensor 12, the infrared thermal imaging sensor 13, and the micro differential pressure sensor 14 are arranged in an equilateral triangle on the mounting substrate 11.

[0046] Specifically, such as Figure 2 As shown, the mounting substrate 11 is a circular plate structure with a thickness of 5 mm and a diameter of 150 mm. Furthermore, on the plane of the mounting substrate 11, with the geometric center as a reference, three mounting positions can be precisely set at 120° intervals along a circumference with a radius of 60 mm. These three mounting positions are designated as the first mounting position 111, the second mounting position 112, and the third mounting position 113. The first mounting position 111, the second mounting position 112, and the third mounting position 113 are respectively used to mount the gas concentration sensor 12, the infrared thermal imaging sensor 13, and the micro-differential pressure sensor 14.

[0047] Of course, the mounting base plate 11 is not limited to a circular plate structure. The mounting base plate 11 can also be a triangular plate structure, with three mounting positions set at the three corners of the mounting base plate 11, which can save space occupied by the monitoring module 1.

[0048] In some embodiments, please refer to Figure 1 The signal processing module 2 may include a signal conditioner 21, a comparator 22, and a decision unit 23.

[0049] The signal conditioner 21 is used to preprocess (such as amplification, filtering, etc.) the gas concentration information monitored by the gas concentration sensor 12, the temperature information monitored by the infrared thermal imaging sensor 13, and the pressure change information monitored by the micro-differential pressure sensor 14 to obtain the first information, the second information, and the third information respectively.

[0050] Comparator 22 is connected to signal conditioner 21 and is used to compare the first, second, and third information with their corresponding preset alarm thresholds, generating three independent comparison result signals, each of which is a digital level signal (e.g., high level, low level). Decision unit 23 is connected to comparator 22 and is used to generate graded early warning commands based on the received comparison result signals.

[0051] Figure 3 For an interactive diagram of the monitoring module, signal processing module, and explosion suppression execution module in the explosion suppression graded protection system provided according to the embodiments of this application, please refer to [link / reference]. Figure 3 The preset alarm thresholds may include, but are not limited to, a first alarm threshold, a second alarm threshold, and a third alarm threshold. For example, the first alarm threshold may be 20% of the lower limit of gas explosion concentration, the second alarm threshold may be a temperature threshold of 175℃ or a temperature change threshold of 30℃ / s, and the third alarm threshold may be a pressure change threshold of 200Pa.

[0052] The decision-maker 23 of the signal processing module 2 is configured to generate a level-one warning instruction when the first information is not less than a first alarm threshold, the second information is less than a second alarm threshold, and the third information is less than a third alarm threshold; generate a level-two warning instruction when any one of the first, second, and third information is not less than its corresponding alarm threshold; and generate a level-three warning instruction when the first, second, and third information are not less than the first, second, and third alarm thresholds, respectively. The level-one, level-two, and level-three warning instructions represent different levels of risk.

[0053] Correspondingly, the explosion suppression execution module 3 executes a level 1 response action (such as a warning light or sound prompt) when it receives a level 1 warning command, executes a level 2 response action (such as a light prompt + sound prompt) when it receives a level 2 warning command, and executes a level 3 response action (such as a light prompt + sound prompt + physical explosion suppression action) when it receives a level 3 warning command.

[0054] Additionally, it should be noted that when only the second information is not less than the second alarm threshold or only the third information is not less than the third alarm threshold, the decision-maker 23 does not generate a first-level warning command, and the first-level response action of the explosion suppression execution module 3 will not be triggered at this time.

[0055] In this embodiment, the signal conditioner 21, comparator 22, and decision-maker 23 work together to achieve real-time, online analysis and decision-making. Once the hazard level is determined to be level one, two, or three, the explosion suppression execution module 3 is automatically triggered to perform the corresponding explosion suppression action without manual intervention. This achieves a complete and rapid safety protection closed loop from risk perception to active suppression. Furthermore, the hardware logic based on independent threshold judgment replaces complex software algorithm models. This solution has a transparent decision-making process, millisecond-level response latency, requires no training, and is highly stable, making it suitable for the stringent requirements of determinism and real-time performance in the industrial safety field.

[0056] In some embodiments, please refer to Figure 1 The signal conditioner 21 may include a first signal conditioning unit 211, a second signal conditioning unit 212 and a third signal conditioning unit 213.

[0057] The first signal conditioning unit 211 preprocesses the gas concentration information of the monitored area detected by the gas concentration sensor 12 to obtain first information. The gas concentration information of the monitored area can be calculated based on the resistance change of the gas concentration sensor 12. The second signal conditioning unit 212 preprocesses the temperature information of the monitored area detected by the infrared thermal imaging sensor 13 to obtain second information. The third signal conditioning unit 213 preprocesses the pressure change information of the monitored area detected by the micro-differential pressure sensor 14 to obtain third information. Specifically, the first, second, and third information are all independent digital alarm signals (e.g., high / low level).

[0058] In some embodiments, please refer to Figure 1 and Figure 3 The explosion suppression execution module 3 may include a warning light 31, an audible and visual alarm 32, and an explosion suppression device 33.

[0059] Warning light 31 can activate upon receiving a Level 1 warning command generated by decision-maker 23. Specifically, when the gas concentration information of the monitored area detected by gas concentration sensor 12 is not less than the first alarm threshold (20% of the lower limit of gas explosion concentration), decision-maker 23 determines it as a "Level 1 warning" and generates a Level 1 warning command. At this time, a Level 1 response is triggered, and warning light 31 (such as an LED) flashes or remains constantly lit to provide an early visual indication that flammable material is leaking or accumulating, but no open flame or explosion signs are detected, requiring immediate inspection by safety monitoring personnel. Warning light 31 can be an indicator light of any color, such as a yellow indicator light.

[0060] When only the temperature information of the monitored area detected by the infrared thermal imaging sensor 13 is not less than the second alarm threshold, or only the pressure change information of the monitored area detected by the micro differential pressure sensor 14 is not less than the third alarm threshold, the system will collect abnormal temperature field distribution to detect the occurrence of flames and determine the location of the fire source, even though the "first-level response" is not triggered.

[0061] The audible and visual alarm 32 can be activated when it receives the secondary and tertiary warning commands generated by the decision-maker 23. The audible and visual alarm 32 can provide light and sound prompts.

[0062] Specifically, if the detected gas concentration information C is not less than the first alarm threshold (i.e., C ≥ 20% of the lower limit of gas explosion concentration) and the temperature information (such as the current temperature T or temperature change ΔT) is not less than the second alarm threshold (i.e., the current temperature T ≥ 175℃, or the temperature change ΔT ≥ 30℃ / s), or the detected gas concentration information C is not less than the first alarm threshold (i.e., C ≥ 20% of the lower limit of gas explosion concentration) and the pressure change information Δp is not less than the third alarm threshold (i.e., Δp ≥ 200Pa), or the detected temperature information is not less than the second alarm threshold and the pressure change information is not less than the third alarm threshold, then the decision-maker 23 determines it as "Level 2 High Risk," considering the explosion risk to be extremely high. At this time, a Level 2 response is triggered, which activates the audible and visual alarm 32 (integrating a high-decibel buzzer and a red flashing light) to work continuously, issuing a strong audio-visual alarm and initiating an emergency evacuation.

[0063] The explosion suppression device 33 can activate explosion suppression upon receiving a Level 3 warning command generated by the decision-maker 23. Specifically, the explosion suppression device 33 may include a trigger and an explosion suppression mechanism. The trigger is connected to the decision-maker 23 and the explosion suppression mechanism. When the monitored gas concentration information is not less than the first alarm threshold, the temperature information is not less than the second alarm threshold, and the pressure change information is not less than the third alarm threshold, the decision-maker 23 determines it to be "Level 3 Emergency," considering the explosion risk to be very high. At this time, a Level 3 response is triggered. While maintaining the alarm of the audible and visual alarm 32, the explosion suppression mechanism is triggered to perform physical explosion suppression actions, such as opening the solenoid valve of the explosion suppressant spray pipeline or triggering the ejection mechanism of the explosion suppression ball to achieve active and rapid explosion suppression.

[0064] In this embodiment, by combining the specific hardware layout of gas, infrared, and micro-pressure sensors with the preprocessing, comparative analysis, and decision-making circuits of the signal processing module 2, rapid and reliable risk assessment is achieved. Furthermore, through coupling with different actuators of the explosion suppression execution module 3, the different actuators of the explosion suppression execution module 3 can be directly driven to achieve graded response actions. The entire process is completed automatically by the hardware circuit, resulting in a rapid response. This constructs a simple, efficient, and reliable active safety protection platform, forming a complete hardware closed loop of "perception-decision-suppression-reset," thereby significantly improving the speed and reliability from risk detection to proactive intervention and greatly reducing the safety risks in the monitored area.

[0065] Figure 4 For a schematic diagram of the reset module in the explosion suppression graded protection system provided according to the embodiments of this application, please refer to [link / reference]. Figure 1 and Figure 4 The reset module 4 is located inside the tank of the explosion suppression device 33 and includes a reset sensor 41, a piston plate 42, a spring 43 and a piston rod 44.

[0066] The reset sensor 41 is mounted on the tank of the explosion suppression device 33. The piston plate 42 is movably mounted on the tank of the explosion suppression device 33 and is positioned opposite to the reset sensor 41. The spring 43 is positioned between the piston plate 42 and the tank of the explosion suppression device 33. The piston rod 44 is connected to the piston plate 42 and faces the reset sensor 41.

[0067] The piston plate 42 is configured to drive the piston rod 44 to move relative to the reset sensor 41 under the action of external force. When the reset sensor 41 contacts the piston rod 44, it generates reset information and transmits it to the signal processing module 2 so that the signal processing module 2 controls the explosion suppression execution module 3 to perform a reset.

[0068] Specifically, the reset module 4 may also include a reset indicator light. The reset sensor 41 may be a normally open switch. When it contacts the piston rod 44, it generates and sends the reset information to the signal processing module 2 in the form of a pulse. After receiving the pulse, the signal processing module 2 immediately stops the trigger output of the audible and visual alarm 32 and the explosion suppression device 33, resets the system status to standby mode, and illuminates the green reset indicator light to confirm that the reset is complete.

[0069] In this embodiment, the reset module 4 works in conjunction with the signal processing module 2 to achieve the reset, and the entire reset process requires no power outage or additional debugging. This ensures that the system can be restored to normal protection status within a specific time period (e.g., 5 minutes), simplifying maintenance steps, significantly reducing long-term operating costs, and supporting regular drills. Furthermore, after the reset is complete, based on pre-configured software, the system can automatically enter a self-test mode to quickly diagnose the status of each sensor, power supply module, and communication link, ensuring proper functioning. If the self-test passes, the green reset indicator light remains illuminated, and the explosion suppression classification protection system 100 re-monitors.

[0070] In some embodiments, please refer to Figure 4 The piston plate 42, on the side facing away from the reset sensor 41, forms a storage cavity 34 with the tank of the explosion suppression device 33. The tank is provided with a spray port 35 and a filling port 36. During the explosion suppression process of the explosion suppression device 33, the explosion suppressant in the storage cavity 34 is sprayed outward through the spray port 35. As the air pressure in the storage cavity 34 decreases, the piston plate 42 moves toward the spray port 35. After the explosion suppression is completed, the explosion suppressant can be filled into the storage cavity 34 through the filling port 36. As the explosion suppressant is filled, the air pressure in the storage cavity 34 increases. At this time, the piston plate 42 is subjected to a force by the explosion suppressant in the storage cavity 34, which drives the piston rod 44 to move relative to the reset sensor 41 until the reset sensor 41 contacts the piston rod 44, thereby triggering the system reset.

[0071] In some embodiments, the reset module 4 may further include a manual reset mechanism connected to the piston plate 42. The piston plate 42 is configured to drive the piston rod 44 to move relative to the reset sensor 41 under the action of the manual reset mechanism until the reset sensor 41 contacts the piston rod 44, thereby triggering the system reset.

[0072] In some embodiments, please refer to Figure 1 The explosion suppression graded protection system 100 may also include a power supply module 5 (such as input AC 220V / output DC 24V and 5V), which is used to supply power to the monitoring module 1, the signal processing module 2, the explosion suppression execution module 3 and the reset module 4.

[0073] In some embodiments, please refer to Figure 1 The explosion suppression graded protection system 100 may also include a housing 6, which may be an engineering plastic housing or a metal housing with a protection level of not less than IP65. The monitoring module 1, the signal processing module 2, the triggers of the explosion suppression execution module 3, the reset module 4, and the power supply module 5 are integrated in the housing 6 to be suitable for industrial field environments.

[0074] The modules can be connected via internal cables and integrated into the outer casing 6, forming a compact and fully functional independent device. Furthermore, the entire device is compact, with all functions implemented through hardware circuitry and mechanical structures, reducing system complexity, power consumption, and cost, and facilitating production, installation, maintenance, and widespread adoption in various industrial scenarios.

[0075] This application also provides a method for graded explosion suppression protection, which is configured in the explosion suppression graded protection system 100 described in any of the above embodiments. Based on this method, a closed loop of active safety protection of "sensing-decision-suppression-reset" can be realized, which can significantly improve the speed and reliability from risk detection to active intervention, and greatly reduce the safety risks of the monitored area. Therefore, it can be widely used in fields such as chemical production, energy storage power stations, and dust operations.

[0076] Figure 5 For a flowchart illustrating the explosion suppression graded protection method provided according to the embodiments of this application, please refer to [link / reference]. Figure 5 The explosion suppression and graded protection method may include the following steps.

[0077] S101, Obtain environmental information within the area to be monitored. This environmental information may include, but is not limited to, gas concentration information, temperature information, and pressure change information.

[0078] S102 generates tiered early warning instructions based on environmental information within the monitoring area. Different tiered early warning instructions can represent different risk levels.

[0079] S103, executes corresponding explosion suppression actions based on the graded early warning instructions. Different explosion suppression actions are executed based on different graded early warning instructions.

[0080] S104 generates reset information after the explosion suppression action is completed, and controls the explosion suppression graded protection system to reset according to the reset information.

[0081] In this embodiment, based on steps S101 to S104, a proactive safety protection closed loop of "perception-decision-inhibition-reset" is realized, which can significantly improve the speed and reliability from risk detection to proactive intervention and greatly reduce the safety risks of the monitored area.

[0082] In some embodiments, generating a graded early warning instruction based on environmental information within the monitoring area includes: preprocessing gas concentration information, temperature information, and pressure change information within the monitoring area to obtain first information, second information, and third information, respectively; comparing the first information, second information, and third information with corresponding preset alarm thresholds to obtain corresponding comparison result signals, wherein the comparison result signals are digital level signals; and generating a graded early warning instruction based on the received comparison result signals.

[0083] Specifically, the preset alarm thresholds include a first alarm threshold, a second alarm threshold, and a third alarm threshold. A Level 1 warning command is generated when the first piece of information is not less than the first alarm threshold, and the second piece of information is less than the second alarm threshold, and the third piece of information is less than the third alarm threshold. A Level 2 warning command is generated when any one of the first, second, or third pieces of information is not less than its corresponding alarm threshold. A Level 3 warning command is generated when the first, second, and third pieces of information are not less than the first alarm threshold, the second, and third pieces of information are not less than the third alarm threshold. Different explosion suppression actions are executed based on the different Level 1, Level 2, and Level 3 warning commands.

[0084] Here, this application generates different early warning commands based on different alarm thresholds and executes different explosion suppression actions respectively, which can realize different levels of response actions in a simple and efficient manner.

[0085] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A graded explosion suppression protection system, characterized in that, include: The monitoring module (1) is used to be installed in the area to be monitored in order to monitor the environmental information in the area to be monitored. The signal processing module (2) is connected to the monitoring module (1) and is used to generate graded early warning instructions based on the environmental information monitored by the monitoring module (1). An explosion suppression execution module (3), connected to the signal processing module (2), is used to execute explosion suppression actions according to the graded early warning instructions generated by the signal processing module (2); and The reset module (4) is connected to the signal processing module (2) and is used to generate reset information after the explosion suppression execution module (3) performs the explosion suppression action, so that the signal processing module (2) controls the explosion suppression execution module (3) to reset.

2. The explosion suppression graded protection system according to claim 1, characterized in that, The monitoring module (1) includes: Mounting substrate (11); A gas concentration sensor (12) is mounted on the mounting base plate (11) and is used to monitor the gas concentration information in the area to be monitored. An infrared thermal imaging sensor (13) is mounted on the mounting substrate (11) and is used to monitor the temperature information in the area to be monitored. A micro differential pressure sensor (14) is mounted on the mounting base plate (11) and is used to monitor pressure change information in the area to be monitored; The gas concentration sensor (12), the infrared thermal imaging sensor (13), and the micro differential pressure sensor (14) are arranged in a triangular pattern on the mounting substrate (11).

3. The explosion suppression graded protection system according to claim 2, characterized in that, The gas concentration sensor (12), the infrared thermal imaging sensor (13), and the micro differential pressure sensor (14) are arranged in an equilateral triangle on the mounting substrate (11).

4. The explosion suppression graded protection system according to claim 2, characterized in that, The signal processing module (2) includes: The signal conditioner (21) is used to preprocess the information monitored by the gas concentration sensor (12), the infrared thermal imaging sensor (13) and the micro differential pressure sensor (14) respectively to obtain the first information, the second information and the third information respectively; The comparator (22) is used to compare the first information, the second information and the third information with the corresponding preset alarm thresholds respectively, and generate the corresponding comparison result signal, wherein the comparison result signal is a digital level signal; The decision-maker (23) is used to generate graded early warning instructions based on the received comparison result signals.

5. The explosion suppression graded protection system according to claim 4, characterized in that, The preset alarm thresholds include a first alarm threshold, a second alarm threshold, and a third alarm threshold; The decision-maker (23) is configured to: generate a first-level warning instruction when the first information is not less than the first alarm threshold, the second information is less than the second alarm threshold, and the third information is less than the third alarm threshold; generate a second-level warning instruction when any two of the first information, the second information, and the third information are not less than the corresponding alarm threshold; and generate a third-level warning instruction when the first information is not less than the first alarm threshold, the second information is not less than the second alarm threshold, and the third information is not less than the third alarm threshold.

6. The explosion suppression graded protection system according to claim 5, characterized in that, The explosion suppression execution module (3) includes: (31) is used to start working when the first-level early warning instruction generated by the decision-maker (23) is received; An audible and visual alarm (32) is used to activate upon receiving a secondary warning command and a tertiary warning command generated by the decision-maker (23); The explosion suppression device (33) is used to activate the explosion suppression operation when the decision-maker (23) generates a level 3 warning command.

7. The explosion suppression graded protection system according to claim 6, characterized in that, The reset module (4) is disposed inside the tank of the explosion suppression device (33) and includes: A reset sensor (41) is provided on the tank body; Piston plate (42) is movably disposed on the tank body and is disposed opposite to the reset sensor (41); A spring (43) is disposed between the piston plate (42) and the tank body; The piston rod (44) is connected to the piston plate (42) and is positioned facing the reset sensor (41); The piston plate (42) is configured to drive the piston rod (44) to move relative to the reset sensor (41) under the action of external force. When the reset sensor (41) contacts the piston rod (44), it generates reset information and transmits it to the signal processing module (2) so that the signal processing module (2) controls the explosion suppression execution module (3) to perform a reset.

8. The explosion suppression graded protection system according to claim 7, characterized in that, The piston plate (42) on the side away from the reset sensor (41) forms a storage cavity (34) with the tank body. The piston plate (42) is configured to be subjected to force by the explosion suppressant when the explosion suppressant is filled in the storage cavity (34) so ​​as to drive the piston rod (44) to move relative to the reset sensor (41). Alternatively, the reset module (4) may further include a manual reset mechanism, which is connected to the piston plate (42). The piston plate (42) is configured to drive the piston rod (44) to move relative to the reset sensor (41) under the action of the manual reset mechanism.

9. A method for graded explosion suppression protection, characterized in that, Configured in the explosion suppression graded protection system according to any one of claims 1-8, and comprising: Obtain environmental information within the area to be monitored; Generate tiered early warning instructions based on environmental information within the monitored area; Execute the corresponding explosion suppression action according to the graded early warning command; After the explosion suppression action is completed, reset information is generated, and the explosion suppression graded protection system is controlled to reset according to the reset information.

10. The explosion suppression graded protection method according to claim 9, characterized in that, The environmental information within the monitoring area includes gas concentration information, temperature information, and pressure change information. Generating tiered early warning commands based on the environmental information within the monitoring area includes: The gas concentration information, temperature information, and pressure change information within the monitoring area are preprocessed to obtain first information, second information, and third information, respectively. The first information, the second information, and the third information are compared with the corresponding preset alarm thresholds to obtain the corresponding comparison result signals, and the comparison result signals are digital level signals; Based on the received comparison result signal, the graded early warning command is generated; The preset alarm thresholds include a first alarm threshold, a second alarm threshold, and a third alarm threshold. A first-level warning instruction is generated when the first information is not less than the first alarm threshold, the second information is less than the second alarm threshold, and the third information is less than the third alarm threshold. A second-level warning instruction is generated when any one of the first information, the second information, and the third information is not less than the corresponding alarm threshold. A third-level warning instruction is generated when the first information is not less than the first alarm threshold, the second information is not less than the second alarm threshold, and the third information is not less than the third alarm threshold.

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