Intelligent flame-retardant electrochemical energy storage safety active defense device

Abstract

The invention relates to the field of electrochemical energy storage safety protection devices, in particular to an intelligent flame-retardant electrochemical energy storage safety active defense device. Comprising a detection box body, a gas detection system, a gas circulation system and an early warning system, the state of the energy storage battery can be comprehensively and accurately identified by adopting a combined detection mode of CO, methane and hydrogen sensors and combining analysis and combined judgment of a central processing unit on gas content numerical values, and false alarm or missing alarm is avoided.

Description

Technical Field

[0001] This application relates to the field of electrochemical energy storage safety protection devices, and in particular to an intelligent flame-retardant electrochemical energy storage safety active defense device. Background Technology

[0002] The statements in this section are merely background information related to this application and do not necessarily constitute prior art.

[0003] In the field of electrochemical energy storage safety protection, existing technologies have proposed various solutions. Two commonly used solutions are: one employs a combination of hydrogen concentration sensors, smoke concentration sensors, VOC sensors, CO sensors, temperature sensors, oxygen concentration sensors, and pressure sensors, supplemented with nitrogen to create an inert gas environment. While this technology achieves multi-parameter detection, it relies on passive gas diffusion and lacks a forced gas circulation mechanism, resulting in low detection efficiency for early trace gas leaks. The other solution uses embedded temperature sensors and gas concentration detectors to detect thermal runaway signals and directly activate fire suppression systems. Although this solution can respond quickly to severe faults, it lacks the ability to analyze trends in gas concentration changes, making it difficult to distinguish between early leaks and transient environmental disturbances, potentially leading to over-response or delayed warnings.

[0004] Based on this, the aforementioned existing technologies generally suffer from three common problems: First, gas collection relies on natural convection, resulting in slow response times significantly affected by environmental factors, and the lack of wind speed control further complicates detection stability. Second, the early warning mechanisms are simplistic, failing to provide differentiated responses based on the stage of leak development and unable to identify rapidly changing risks. Third, multi-sensor data is used only for simple threshold comparisons, without establishing a composite judgment model based on gas component proportions and change rates. These problems necessitate improvements in the accuracy and timeliness of early warnings in existing systems, particularly in large-scale energy storage power plants where subtle gas leak characteristics are easily masked by environmental noise.

[0005] Therefore, it is necessary to provide an intelligent flame-retardant electrochemical energy storage safety active defense device to solve the above-mentioned technical problems. Summary of the Invention

[0006] Based on this, and in response to the aforementioned technical problems, this application provides an intelligent flame-retardant electrochemical energy storage safety active defense device.

[0007] The technical solution adopted in this application to solve the problems existing in the prior art is: This application proposes an intelligent flame-retardant electrochemical energy storage safety active defense device, comprising: A testing enclosure for housing an energy storage battery; The gas detection system includes a CO gas sensor, a methane gas sensor, and a hydrogen gas sensor disposed inside the detection chamber. The gas circulation system includes a first fan located at the bottom of the detection chamber and a second fan located at the top of the detection chamber; The early warning system includes an alarm light connected to the gas detection system and a central processing unit. The central processing unit is used to receive detection data from the gas detection system, determine the battery status based on the detection data, and control the early warning system to issue an early warning.

[0008] Preferably, The CO gas sensor, methane gas sensor, and hydrogen gas sensor are evenly spaced and installed on the top of the detection chamber.

[0009] Preferably, The first and second fans form an airflow channel inside the detection chamber, with a wind speed between 0.5 m / s and 1.2 m / s; A wind speed sensor is installed on the detection chamber, and the wind speed sensor is electrically connected to the central processing unit.

[0010] Preferably, The central processing unit controls the early warning system to issue early warnings, including first-level early warnings and second-level early warnings, wherein: When the CO concentration exceeds 50 ppm, the methane concentration exceeds 1%, or the hydrogen concentration exceeds 1%, the central processing unit controls the early warning system to activate the first-level early warning. When the CO concentration exceeds 100 ppm, the methane concentration exceeds 2%, or the hydrogen concentration exceeds 2%, the central processing unit controls the early warning system to activate the second-level early warning.

[0011] Preferably, The first level of warning is a yellow warning, and the alarm light will display yellow. The second level of warning is a red warning, indicated by a red alarm light.

[0012] Preferably, It also includes a temperature sensor, which is installed inside the detection chamber to detect and collect the temperature inside the detection chamber.

[0013] Preferably, The central processing unit controls the early warning system to issue warnings, including third-level warnings; When the rate of change of concentration of any gas detected by the CO gas sensor, methane gas sensor and hydrogen gas sensor exceeds 10% / min, the control and early warning system will activate the third-level early warning. The third level of warning is a yellow-red flashing warning, where the alarm light flashes yellow and red alternately.

[0014] Preferably, The inner wall of the testing chamber is coated with a flame-retardant coating, which has a temperature resistance of up to 800°C.

[0015] Preferably, The alarm light is fixedly mounted on the detection box. A mounting platform is fixedly installed on the top of the detection box, and a display device is fixedly installed on the mounting platform. A through hole is opened on the mounting platform, and a charging port for an energy storage battery is installed in the through hole. The display device is electrically connected to the central processing unit and the energy storage battery.

[0016] Preferably, Both the first and second fans are variable frequency fans; When the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s, the rotational speeds of the first and second fans remain unchanged. When the wind speed sensor detects a wind speed of less than 0.5 m / s, the central processing unit controls the first and second fans to increase their speed until the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s. When the wind speed sensor detects a wind speed greater than 1.2 m / s, the central processing unit controls the first and second fans to decelerate until the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: Innovation Point 1: The system uses a combination of three sensors (CO, methane, and hydrogen) and combines the concentration change rate (>10% / min) for trend warning, breaking through the traditional single threshold judgment mode and improving the sensitivity of early identification.

[0018] Innovation Point 2: By coordinating bottom and top variable frequency fans, a closed-loop wind speed control (0.5–1.2 m / s) is constructed to achieve rapid and uniform gas circulation, solving the detection delay problem caused by passive diffusion.

[0019] Innovation Point 3: Establish a three-level early warning system (threshold early warning + rate of change early warning + visual differentiation prompts) to achieve graded response from early leakage to serious failure. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0021] Figure 1This is a schematic diagram of the overall structure of an intelligent flame-retardant electrochemical energy storage safety active defense device according to this application; Figure 2 for Figure 1 A schematic diagram of the internal structure of a smart flame-retardant electrochemical energy storage safety active defense device after removing the front cover; Figure 3 for Figure 1 A schematic diagram of the overall structure from another angle.

[0022] In the picture: 1. Inspection box, 2. Front cover, 3. First fan, 4. Display device, 5. Alarm light, 6. Mounting platform, 7. Energy storage battery, 8. CO gas sensor, 9. Methane gas sensor, 10. Hydrogen gas sensor, 11. Second fan. Detailed Implementation

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] In this disclosure, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationship of the various components or elements in this disclosure, and do not specifically refer to any component or element in this disclosure, nor should they be construed as limiting this disclosure.

[0026] refer to Figures 1 to 3 The present application discloses an intelligent flame-retardant electrochemical energy storage safety active defense device, comprising: The test box 1 is used to house the energy storage battery 7; a removable front cover 2 is provided at the front of the test box 1; the front cover 2 is used to provide an inspection port when inspecting the energy storage battery 7. The gas detection system includes a CO gas sensor 8, a methane gas sensor 9, and a hydrogen gas sensor 10 installed inside the detection chamber 1. The gas circulation system includes a first fan 3 located at the bottom of the detection chamber 1 and a second fan 11 located at the top of the detection chamber 1; The early warning system includes an alarm light 5 connected to the gas detection system and a central processing unit. The central processing unit is used to receive detection data from the gas detection system, determine the battery status based on the detection data, and control the early warning system to issue an early warning.

[0027] Among them, CO gas sensor 8, methane gas sensor 9 and hydrogen gas sensor 10 are evenly installed at intervals on the top of the detection box 1.

[0028] In some embodiments, the first fan 3 and the second fan 4 form an airflow channel inside the detection housing 1, with a wind speed between 0.5 m / s and 1.2 m / s; a wind speed sensor is installed on the detection housing 1, and the wind speed sensor is electrically connected to the central processing unit.

[0029] In some embodiments, the central processing unit controls the early warning system to issue early warnings, including first-level early warnings and second-level early warnings, wherein: When the CO concentration exceeds 50 ppm, the methane concentration exceeds 1%, or the hydrogen concentration exceeds 1%, the central processing unit controls the early warning system to activate the first-level early warning. When the CO concentration exceeds 100 ppm, the methane concentration exceeds 2%, or the hydrogen concentration exceeds 2%, the central processing unit controls the early warning system to activate the second-level early warning.

[0030] The first level warning is a yellow warning, indicated by alarm light 5 displaying yellow; the second level warning is a red warning, indicated by alarm light 5 displaying red.

[0031] In some embodiments, the intelligent flame-retardant electrochemical energy storage safety active defense device further includes a temperature sensor, which is disposed inside the detection chamber 1 and is used to detect and collect the temperature inside the detection chamber 1.

[0032] In some embodiments, the central processing unit controlling the early warning system to issue an early warning also includes a third-level early warning; When the rate of change of concentration of any gas detected by CO gas sensor 8, methane gas sensor 9 and hydrogen gas sensor 10 exceeds 10% / min, the control and early warning system will activate the third-level early warning; the third-level early warning is a yellow and red flashing warning, and the alarm light 5 flashes yellow and red alternately.

[0033] In some embodiments, an inert gas release device is provided inside the detection chamber 1, which is automatically activated when a second or third level warning is triggered, realizing the integration of "early warning + suppression" and achieving the effect of active defense.

[0034] In some embodiments, the inner wall of the detection chamber 1 is coated with a flame-retardant coating, the flame-retardant coating having a temperature resistance of up to 800°C. An alarm light 5 is fixedly mounted on the detection chamber 1; a mounting platform 6 is fixedly mounted on the top of the detection chamber 1, and a display device 4 is fixedly mounted on the mounting platform 6. The mounting platform 6 has a through hole, and a charging port for the energy storage battery 7 is installed in the through hole; the display device 4 is electrically connected to the central processing unit and the energy storage battery 7.

[0035] In some embodiments, both the first fan 3 and the second fan 4 are variable frequency fans; When the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s, the rotational speeds of the first fan 3 and the second fan 4 remain unchanged. When the wind speed sensor detects a wind speed of less than 0.5 m / s, the central processing unit controls the first fan 3 and the second fan 4 to increase their speed until the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s. When the wind speed sensor detects a wind speed greater than 1.2 m / s, the central processing unit controls the first fan 3 and the second fan 4 to decelerate until the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s.

[0036] Additionally, it should be noted that in some embodiments, the system also has an uninterruptible power supply (UPS) or backup battery to ensure continued operation after a power outage.

[0037] This application employs a combined detection method using CO, methane, and hydrogen sensors, combined with the analysis and combined judgment of gas content values ​​by the central processing unit, to comprehensively and accurately identify the status of the energy storage battery 7, avoiding false alarms or missed alarms. The forced gas circulation design, through the coordinated operation of bottom and top fans, significantly improves gas detection efficiency and response speed, enabling timely detection of early minor leaks. A multi-level early warning mechanism sets different levels of warning based on gas concentration thresholds, providing a basis for taking differentiated defense measures. The enclosed detection chamber 1 ensures the stability of the detection environment and prevents external gas interference.

[0038] This device is particularly suitable for scenarios such as energy storage power stations, new energy vehicle charging stations, and mobile energy storage boxes.

[0039] This application provides a method for enhancing the detection effect of intelligent flame-retardant electrochemical energy storage safety active defense. Based on the intelligent flame-retardant electrochemical energy storage safety active defense device of this application, the method is as follows: S0: The central processing unit detects the wind speed inside the housing 1 in real time through the wind speed sensor; S1: The central processing unit analyzes the wind speed data detected by the wind speed sensor, and: When the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s, the rotational speeds of the first fan 3 and the second fan 4 remain unchanged. When the wind speed sensor detects a wind speed of less than 0.5 m / s, the central processing unit controls the first fan 3 and the second fan 4 to increase their speed until the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s. When the wind speed sensor detects a wind speed greater than 1.2 m / s, the central processing unit controls the first fan 3 and the second fan 4 to decelerate until the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s.

[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] While the specific embodiments of this application have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this application. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this application are still within the scope of protection of this application.

Claims

1. A smart flame-retardant electrochemical energy storage safety active defense device, characterized in that: include: The detection box (1) is used to house the energy storage battery (7). The gas detection system includes a CO gas sensor (8), a methane gas sensor (9), and a hydrogen gas sensor (10) installed in the detection chamber (1). The gas circulation system includes a first fan (3) located at the bottom of the detection chamber (1) and a second fan (11) located at the top of the detection chamber (1). The early warning system includes an alarm light (5) connected to the gas detection system and a central processing unit. The central processing unit is used to receive detection data from the gas detection system, determine the battery status based on the detection data, and control the early warning system to issue an early warning.

2. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 1, characterized in that: The CO gas sensor (8), methane gas sensor (9) and hydrogen gas sensor (10) are evenly spaced and installed on the top of the detection box (1).

3. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 1 or 2, characterized in that: The first fan (3) and the second fan (11) form an airflow channel inside the detection box (1), with a wind speed between 0.5 m / s and 1.2 m / s; A wind speed sensor is installed on the detection box (1), and the wind speed sensor is electrically connected to the central processing unit.

4. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 1, characterized in that: The central processing unit controls the early warning system to issue early warnings, including first-level early warnings and second-level early warnings, wherein: When the CO concentration exceeds 50 ppm, the methane concentration exceeds 1%, or the hydrogen concentration exceeds 1%, the central processing unit controls the early warning system to activate the first-level early warning. When the CO concentration exceeds 100 ppm, the methane concentration exceeds 2%, or the hydrogen concentration exceeds 2%, the central processing unit controls the early warning system to activate the second-level early warning.

5. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 4, characterized in that: The first level of warning is a yellow warning, and the alarm light (5) displays yellow; The second level of warning is a red warning, and the alarm light (5) is red.

6. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 1, characterized in that: It also includes a temperature sensor, which is installed inside the detection chamber (1) and is used to detect and collect the temperature inside the detection chamber (1).

7. The intelligent flame-retardant electrochemical energy storage safety active defense device according to any one of claims 4-5, characterized in that: The central processing unit controls the early warning system to issue warnings, including third-level warnings; When the rate of change of concentration of any gas detected by the CO gas sensor (8), methane gas sensor (9) and hydrogen gas sensor (10) exceeds 10% / min, the control and early warning system will activate the third-level early warning. The third level of warning is a yellow-red flashing warning, with the alarm light (5) flashing yellow and red alternately.

8. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 1, characterized in that: The inner wall of the testing chamber (1) is coated with a flame-retardant coating, which has a temperature resistance of up to 800°C.

9. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 1, characterized in that: The alarm light (5) is fixedly installed on the detection box (1); The top of the test box (1) is fixedly provided with a mounting platform (6), and a display device (4) is fixedly provided on the mounting platform (6). A through hole is opened on the mounting platform (6), and a charging port of the energy storage battery (7) is installed in the through hole. The display device (4) is electrically connected to the central processing unit and the energy storage battery (7).

10. The intelligent flame-retardant electrochemical energy storage safety active defense device according to claim 3, characterized in that: Both the first fan (3) and the second fan (11) are variable frequency fans; When the wind speed sensor detects that the wind speed is between 0.5 m / s and 1.2 m / s, the rotation speed of the first fan (3) and the second fan (11) remains unchanged; When the wind speed sensor detects that the wind speed is less than 0.5 m / s, the central processing unit controls the first fan (3) and the second fan (11) to increase their speed until the wind speed sensor detects that the wind speed is between 0.5 m / s and 1.2 m / s. When the wind speed sensor detects a wind speed greater than 1.2 m / s, the central processing unit controls the first fan (3) and the second fan (11) to decelerate until the wind speed sensor detects a wind speed between 0.5 m / s and 1.2 m / s.

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