Method and device for testing response time index of intelligent automatic sprinkler system

Abstract

The invention provides a method for testing response time indexes of an intelligent automatic sprinkler system, which comprises the following steps: a laboratory and / or a built building acquire multidimensional data in real time, the laboratory is used for detecting performance indexes of a product to meet factory requirements of the product, and the built building is a real-time fire scene and is used for testing the consistency of performance parameters of the system product. Preprocessing the multi-dimensional data to obtain the maximum flue gas flow rate, the maximum flue gas temperature, the test environment temperature, the test nozzle temperature and the test nozzle response time; and a response time index test model is constructed, input parameters of the response time index test model comprise the maximum flue gas flow rate, the maximum flue gas temperature, the test environment temperature, the test nozzle temperature and the test nozzle response time, and output parameters of the response time index test model are response time indexes. The invention provides the test method for the response time index of the intelligent automatic sprinkler system, and the test accuracy is ensured.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and in particular to a method and apparatus for testing the response time index of an intelligent automatic sprinkler fire extinguishing system. Background Technology

[0002] Traditional methods for determining the sprinkler response time index of intelligent automatic sprinkler systems involve calculating the sprinkler's action time and temperature under constant temperature and wind speed conditions in a standard wind tunnel. However, for intelligent automatic sprinkler systems, it's impossible to replicate the fire ignition determination and sprinkler motor actuation time tests in actual fires using standard wind tunnel setups. Therefore, testing must be conducted in a test chamber environment consistent with real fire conditions, where temperature and wind speed exhibit dynamic changes consistent with the occurrence and development of a real fire. Traditional methods, by neglecting these dynamic effects, result in deviations between the measured response time values ​​and the actual response performance. Traditional wind tunnel testing methods cannot obtain the sprinkler response time index at the fire scene, while intelligent automatic sprinkler systems can. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a method and apparatus for testing the response time index of intelligent automatic sprinkler fire extinguishing systems. This method provides a testing method for the response time index of intelligent automatic sprinkler fire extinguishing systems and ensures the accuracy of the test.

[0004] This invention provides a method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system, comprising:

[0005] The laboratory and / or the completed building acquire multidimensional data in real time, including the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time.

[0006] The ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time are preprocessed to obtain the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time.

[0007] A response time exponential test model is constructed. The input parameters of the response time exponential test model include the maximum flue gas flow rate, the maximum flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. The output parameter of the response time exponential test model is the response time exponential.

[0008] Furthermore, the real-time temperature of the fire simulation test chamber is obtained by using movable and fixed temperature detection devices arranged in the fire simulation test chamber to obtain the required ambient temperature. The movable and fixed temperature detection devices are arranged in a three-dimensional mesh in the fire simulation test chamber according to the area, height, and slope data of the fire simulation test chamber.

[0009] Furthermore, the movable temperature detection element is positioned and / or moved to the ignition point to detect the ambient temperature and obtain the required ambient temperature.

[0010] Furthermore, based on the area, height, and slope data of the fire simulation test chamber, multiple smoke detection points are set up and smoke detectors and heat detectors are deployed to detect the smoke temperature; multiple wind speed detectors are set up according to the location of the smoke detection points and / or according to the location of the nozzles to detect the smoke flow rate.

[0011] Furthermore, the response time exponential test model is as follows:

[0012]

[0013] Where t represents the test nozzle response time, u represents the maximum flue gas flow rate, T represents the maximum flue gas temperature, T0 represents the test ambient temperature, Tg represents the temperature at which the test nozzle starts, and RTI represents the response time index of the intelligent automatic sprinkler system.

[0014] In another aspect, the present invention provides a test device for the response time index of an intelligent automatic sprinkler system, employing the aforementioned test method for the response time index of an intelligent automatic sprinkler system. The test device for the response time index of an intelligent automatic sprinkler system includes at least the following components:

[0015] The data acquisition module is used to acquire multidimensional data.

[0016] The data processing module is used to preprocess multidimensional data.

[0017] The testing module is used to build a response time exponential test model. The input parameters of the response time exponential test model include the maximum flue gas flow rate, the maximum flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. The output parameter of the response time exponential test model is the response time exponential.

[0018] Furthermore, the data acquisition module includes:

[0019] An ambient temperature acquisition unit is used to detect the required ambient temperature.

[0020] The flue gas detection unit is used to detect flue gas temperature and flue gas flow rate.

[0021] The nozzle detection unit is located on the nozzle and is used to detect the required nozzle temperature and the required nozzle response time.

[0022] In another aspect, the present invention provides a test system for the response time index of an intelligent automatic sprinkler fire extinguishing system. Employing the aforementioned test method for the response time index of an intelligent automatic sprinkler fire extinguishing system, the test system includes at least the following components:

[0023] The fire simulation test chamber is equipped with a movable ceiling and is used to simulate dynamic real fire scenarios.

[0024] An ambient temperature acquisition mechanism includes a movable temperature detection element and a fixed temperature detection element; the movable temperature detection element and the fixed temperature detection element form a three-dimensional mesh structure and are installed inside the fire simulation test chamber; the movable temperature detection element is movable and installed in the fire simulation test chamber, and the movable temperature detection element can be moved to a position closer to the fire point according to the location of the fire point;

[0025] The smoke detection system includes smoke detectors, heat detectors, and wind speed detectors. Smoke detectors and heat detectors are installed at each smoke detection point, and the location of the wind speed detectors is set according to the nozzle location and / or the area, height, and slope data of the fire simulation test chamber. The heat detectors are used to detect the smoke temperature, and the wind speed detectors are used to detect the smoke flow rate.

[0026] The nozzle testing mechanism is located at the nozzle and is used to test the required nozzle temperature and the required nozzle response time.

[0027] The controller receives the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time, and preprocesses them to obtain the test ambient temperature, maximum flue gas flow rate, maximum flue gas temperature, test nozzle temperature, and test nozzle response time. It then constructs a response time exponential test model. The input parameters of the response time exponential test model include the maximum flue gas flow rate, maximum flue gas temperature, test ambient temperature, test nozzle temperature, and test nozzle response time. The output parameter of the response time exponential test model is the response time exponential.

[0028] Furthermore, smoke detection points are set on the movable ceiling according to the area, height, and slope data of the fire simulation test chamber, and the smoke detection points are evenly arranged in an array on the surface of the movable ceiling, and the smoke detection points move with the movable ceiling.

[0029] In another aspect, the present invention provides a computer program product, which includes a computer program that, when executed, implements the above-described method.

[0030] As can be seen from the above solutions, the advantages of the present invention are:

[0031] By acquiring data from multiple dimensions in real time at a certain frequency, including ambient temperature, smoke flow rate, smoke temperature, required nozzle temperature, and required nozzle response time, a comprehensive assessment of the real-time situation within the fire simulation test chamber can be achieved. After acquiring the multi-dimensional data, it undergoes preprocessing, including filtering out invalid data, to obtain the test ambient temperature, test nozzle temperature, and test nozzle response time. The maximum smoke flow rate and highest smoke temperature are then selected through integration and comparison. This preprocessing of the multi-dimensional data eliminates data deviations caused by factors such as malfunctioning data measuring instruments or data acquisition modules, ensuring the accuracy of the test results. Based on multidimensional data from a fire simulation test chamber, a response time index test model is constructed. The pre-processed maximum smoke flow rate, maximum smoke temperature, test ambient temperature, test nozzle temperature, and test nozzle response time are input into the response time index test model to obtain the response time index. This embodiment of the intelligent automatic sprinkler system response time index test method takes into account multidimensional data from the fire simulation test chamber and analyzes the impact of multidimensional data on the response time index. By constructing a response time index test model, the response time index is obtained, enabling accurate determination of the nozzle response time index value. This method can be widely applied to the design optimization of intelligent automatic sprinkler systems and traditional sprinklers, the evaluation of the fire extinguishing function and performance of intelligent automatic sprinkler systems, and standardized testing. Attached Figure Description

[0032] Figure 1 A flowchart of a method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system according to an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the thermocouple arrangement when the height of the fire simulation test chamber is 3 m.

[0034] Figure 3 A schematic diagram of the thermocouple arrangement when the height of the fire simulation test chamber is 6 m.

[0035] Figure 4 This is a schematic diagram showing the arrangement of the smoke detector, heat detector, and anemometer.

[0036] Figure 5 This is a schematic diagram showing the arrangement of the anemometer at the chimney exhaust outlet.

[0037] Figure 6 This is a schematic diagram of a thermocouple tree;

[0038] Figure 7 This is a schematic diagram of a fire simulation test chamber;

[0039] Figure 8 This is a schematic diagram of the overall structure of a smart automatic sprinkler fire extinguishing system response time index testing device provided in an embodiment of the present invention.

[0040] In the attached figures, the following labels are used:

[0041] 10-Ambient temperature acquisition mechanism;

[0042] 11-Removable temperature sensing element;

[0043] 12-Fixed temperature sensing element;

[0044] 13-Thermocouple tree;

[0045] 20 - Wind speed detection component;

[0046] 30-Smoke detector;

[0047] 40 - Temperature sensor;

[0048] 50-Intelligent Automatic Sprinkler System Response Time Index Test Device;

[0049] 51-Data Acquisition Module;

[0050] 52-Data Processing Module;

[0051] 53-Test Module;

[0052] 60 - Fire simulation test chamber. Detailed Implementation

[0053] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims.

[0054] References to "embodiment," "another embodiment," "this embodiment," etc., in the specification refer to embodiments that may include specific features, structures, or characteristics, but not every embodiment must include these specific features, structures, or characteristics. Furthermore, such expressions do not refer to the same embodiment. Moreover, when describing specific features, structures, or characteristics in conjunction with embodiments, whether or not explicitly described, it is indicated that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.

[0055] The specification and subsequent claims use certain terms to refer to specific components or parts. Those skilled in the art will understand that users or manufacturers may use different names or terms to refer to the same component or part. This specification and claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout the specification and claims are open-ended and should be interpreted as "including but not limited to". Furthermore, the term "connection" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connections via other means.

[0056] Figure 1 The present invention provides a method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system, which includes the following steps:

[0057] Step S1: Real-time acquisition of multidimensional data in the laboratory and / or the constructed building, including the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time.

[0058] In one embodiment, data from multiple dimensions, such as the required ambient temperature, smoke flow rate, smoke temperature, required nozzle temperature, and required nozzle response time, are acquired in real time at a certain frequency, so as to comprehensively judge the real-time situation inside the fire simulation test chamber 60 through data from multiple dimensions.

[0059] Step S2: Preprocess the ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time to obtain the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time.

[0060] In one embodiment, after acquiring multidimensional data, the data is preprocessed, including filtering out invalid data to obtain the test environment temperature, test nozzle temperature, and test nozzle response time. The maximum flue gas flow rate and the highest flue gas temperature are then selected through integration and comparison. This preprocessing of the multidimensional data filters out data deviations caused by factors such as data measurement instrument failure or data acquisition module 51 failure, ensuring the accuracy of the test results.

[0061] Step S3: Construct a response time exponential test model. The input parameters of the response time exponential test model include the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. The output parameter of the response time exponential test model is the response time exponential.

[0062] In one embodiment, a response time index test model is constructed based on 60-dimensional data from a fire simulation test chamber. The pre-processed maximum smoke flow rate, maximum smoke temperature, test ambient temperature, test nozzle temperature, and test nozzle response time are input into the response time index test model to obtain the response time index. This intelligent automatic sprinkler system response time index test method, provided in this embodiment, considers the multi-dimensional data from the fire simulation test chamber 60 and analyzes and calculates the impact of multi-dimensional data on the response time index. By constructing a response time index test model, the response time index is obtained, enabling accurate determination of the nozzle response time index value. This method can be widely applied to the optimization of intelligent automatic sprinkler system and traditional nozzle design, the evaluation of the fire extinguishing function and performance of intelligent automatic sprinkler systems, and standardized testing.

[0063] In one embodiment, a test software for the response time index of an intelligent automatic sprinkler system is provided. After the software is installed, the response time index value of the intelligent automatic sprinkler system can be tested and calculated for each fire, and the test data will be retained. Furthermore, the software product and the intelligent automatic sprinkler system can be evaluated for each fire.

[0064] In one embodiment, the laboratory tests product performance and acquires multidimensional data online in real time. This multidimensional data includes the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time. The ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time are preprocessed to obtain the maximum flue gas flow rate, maximum flue gas temperature, test ambient temperature, test nozzle temperature, and test nozzle response time. A response time index test model is constructed. The input parameters of the response time index test model include the maximum flue gas flow rate, maximum flue gas temperature, test ambient temperature, test nozzle temperature, and test nozzle response time. The output parameter of the response time index test model is the response time index.

[0065] In one embodiment, the response time index of the sprinkler head can be used for laboratory testing of the product's factory output, or it can be used for the actual response time index of the smart automatic sprinkler system already installed in the building in the event of a fire, in order to determine the product's applicability and advancement.

[0066] In one embodiment, a test platform for the response time index of an intelligent automatic sprinkler system is also provided. The response time index value of the intelligent automatic sprinkler system can be tested and calculated for each fire, and the test data will be retained. Furthermore, the software product and the intelligent automatic sprinkler system can be evaluated for each fire.

[0067] In one embodiment, multidimensional data can be acquired on demand. Specifically, multidimensional data is acquired in real time in the laboratory. The multidimensional data includes the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time. The ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time are preprocessed to obtain the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. A response time index test model is constructed. The input parameters of the response time index test model include the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. The output parameter of the response time index test model is the response time index.

[0068] In one embodiment, multidimensional data is acquired in real time within the constructed building. This multidimensional data includes the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time. The ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time are preprocessed to obtain the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. A response time index test model is constructed. The input parameters of the response time index test model include the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. The output parameter of the response time index test model is the response time index.

[0069] In one embodiment, multidimensional data is acquired in real time in a laboratory and a completed building. The multidimensional data includes the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time. The ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time are preprocessed to obtain the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. A response time index test model is constructed. The input parameters of the response time index test model include the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. The output parameter of the response time index test model is the response time index.

[0070] The laboratory is used to test the performance indicators of products to meet the requirements for product delivery, while the constructed building is a real-time fire scene to test the consistency of the performance parameters of the system products.

[0071] In one embodiment, the intelligent automatic sprinkler system response time index test method provided by the present invention can be used to detect the response time index value of the intelligent automatic sprinkler system. Since the intelligent automatic sprinkler system does not use the fire temperature field to start the sprinkler head, but instead uses electric start based on the fire ignition and location determination model, it is impossible to use the traditional constant temperature and constant wind speed experimental device to test the response time index value. However, the intelligent automatic sprinkler system response time index test method provided by the present invention combines multi-dimensional data with the response time index test model, which can realize the detection of the response time index value of the intelligent automatic sprinkler system and improve the performance of testing the response time index value.

[0072] In one embodiment, the real-time temperature of the fire simulation test chamber 60 is obtained by using movable temperature detectors 11 and fixed temperature detectors 12 arranged in the chamber, thus obtaining the desired ambient temperature. The movable and fixed temperature detectors 11 and 12 are arranged in a three-dimensional network within the fire simulation test chamber 60 based on its area, height, and slope data. This three-dimensional network of movable and fixed temperature detectors 11 and 12 allows for accurate measurement of the desired ambient temperature of the entire fire simulation test chamber 60, as well as the desired ambient temperature at each monitoring point. The movable temperature detectors 11 can also be moved to obtain the desired ambient temperature at a specific point, ensuring both comprehensive measurement and targeted measurement of the desired ambient temperature at a specific point within the fire simulation test chamber 60, thereby guaranteeing the accuracy of the desired ambient temperature measurement.

[0073] In one embodiment, the movable temperature detection element 11 is arranged at the ignition point to detect and obtain the required ambient temperature. When measuring the required ambient temperature at the ignition point, the movable temperature detection element 11 can be moved to a position as close as possible to the ignition point to ensure the accuracy of the measurement of the required ambient temperature at the ignition point.

[0074] In one embodiment, the movable temperature detection element 11 moves to the ignition point to detect the required ambient temperature and obtain the required ambient temperature. When the movable temperature detection element 11 and the fixed temperature detection element 12 compare the required ambient temperatures they measure and find that the temperature near a certain place is higher than that of other places, it can be preliminarily determined that the place is the ignition point. The movable temperature detection element 11 can move to a position as close as possible to the ignition point to ensure the accuracy of the required ambient temperature measurement at the ignition point.

[0075] In one embodiment, based on the area, height, and slope data of the fire simulation test chamber 60, multiple smoke detection points are set up and smoke detectors 30 and heat detectors 40 are arranged to detect the smoke temperature; multiple wind speed detectors 20 are set up according to the location of the smoke detection points and / or according to the location of the nozzles to detect the smoke flow rate.

[0076] In one embodiment, the response time index test method for an intelligent automatic sprinkler fire extinguishing system uses the following response time index test model:

[0077]

[0078] In the formula, t represents the test nozzle response time, u represents the maximum flue gas flow rate, T represents the maximum flue gas temperature, T0 represents the test ambient temperature, Tg represents the temperature at which the test nozzle starts, and RTI represents the response time index of the intelligent automatic sprinkler system. The response time index is obtained by inputting the maximum flue gas flow rate, maximum flue gas temperature, test ambient temperature, test nozzle temperature, and test nozzle response time into the response time index test model. Of course, other models can be selected as needed, or the model in this embodiment can be improved according to actual conditions.

[0079] In one embodiment, a smart automatic sprinkler system response time index testing device 50 is also provided, employing the aforementioned smart automatic sprinkler system response time index testing method, such as... Figure 8 As shown, it includes at least: a data acquisition module 51, a data processing module 52, and a testing module 53; the data acquisition module 51 is used to acquire multidimensional data; the data processing module 52 is used to preprocess the multidimensional data; the testing module 53 is used to construct a response time index test model, wherein the input parameters of the response time index test model include the maximum flow rate of flue gas, the highest temperature of flue gas, the test environment temperature, the test nozzle temperature, and the test nozzle response time, and the output parameter of the response time index test model is the response time index.

[0080] This device embodiment can be implemented in conjunction with the implementation methods described above. The relevant technical details mentioned in the implementation methods of the above embodiments remain valid in the implementation methods of this method embodiment, and will not be repeated here to avoid repetition.

[0081] The data acquisition module 51 acquires multi-dimensional data within the fire simulation test chamber 60, including ambient temperature, smoke flow rate, smoke temperature, required nozzle temperature, and required nozzle response time. The data processing module 52 preprocesses the acquired multi-dimensional data to obtain the maximum smoke flow rate, maximum smoke temperature, test ambient temperature, test nozzle temperature, and test nozzle response time. These parameters are then input into the response time index test model to obtain the response time index. This embodiment considers the strong dynamic changes in temperature and wind speed at the actual ignition point. By detecting multi-dimensional data during acquisition, rather than simply fitting the response time index based on a single factor such as temperature, the accuracy of the response time index test is ensured.

[0082] In one embodiment, the data acquisition module 51 includes: an ambient temperature acquisition unit, a flue gas detection unit, and a nozzle detection unit. The ambient temperature acquisition unit is used to detect the required ambient temperature; the flue gas detection unit is used to detect the flue gas temperature and flue gas flow rate; and the nozzle detection unit is disposed on the nozzle and is used to detect the required nozzle temperature and the required nozzle response time.

[0083] In one embodiment, a smart automatic sprinkler system response time index testing system is also provided, employing the aforementioned smart automatic sprinkler system response time index testing method. The system includes at least: a fire simulation test chamber 60, an ambient temperature acquisition mechanism 10, a smoke detection mechanism, a sprinkler head detection mechanism, and a controller. The fire simulation test chamber 60 is equipped with a movable ceiling and is used to simulate dynamic real fire scenarios. The ambient temperature acquisition mechanism 10 includes a movable temperature detection element 11 and a fixed temperature detection element 12. The movable temperature detection element 11 and the fixed temperature detection element 12 form a three-dimensional mesh structure within the fire simulation test chamber 60. The movable temperature detection element 11 is movably disposed within the fire simulation test chamber 60 and can be moved closer to the ignition point based on its location. The smoke detection mechanism includes a smoke detector 30, a heat detector 40, and a wind speed detector 20. 30 and temperature detectors 40 are installed at each smoke detection point. The position of the wind speed detector 20 is set according to the nozzle position and / or the area, height, and slope data of the fire simulation test chamber 60. The temperature detector 40 is used to detect the smoke temperature, and the wind speed detector 20 is used to detect the smoke flow rate. The nozzle detection mechanism is installed at the nozzle and is used to detect the required nozzle temperature and the required nozzle response time. The controller receives the required ambient temperature, smoke flow rate, smoke temperature, required nozzle temperature, and required nozzle response time, performs preprocessing, and obtains the test ambient temperature, maximum smoke flow rate, maximum smoke temperature, test nozzle temperature, and test nozzle response time. It also constructs a response time index test model. The input parameters of the response time index test model include the maximum smoke flow rate, maximum smoke temperature, test ambient temperature, test nozzle temperature, and test nozzle response time. The output parameter of the response time index test model is the response time index. The movable temperature sensing element 11 and the fixed temperature sensing element 12 in this embodiment can be thermocouples with electrode materials such as K-type, E-type, S-type, N-type, J-type, and T-type. Taking the K-type thermocouple as an example, the K-type thermocouple is made of nickel-chromium material, which is the most commonly used type of thermocouple. It has good stability and corrosion resistance and low cost. In order to protect the sensitivity of the thermocouple to meet the response requirements and extend the service life of the thermocouple as much as possible, a K-type thermocouple with a diameter of 2 mm is used in this fire experiment to collect temperature data during the combustion process. The temperature range is 0℃ to 1000℃, and the thermocouple response time is 1 second to meet the range and accuracy requirements of this experiment. The movable temperature sensing element 11 and the fixed temperature sensing element 12 in this embodiment are arranged in a three-dimensional mesh according to a certain pattern, presenting a three-dimensional tree-like structure to form a thermocouple tree 13. The actual schematic diagram of the thermocouple tree 13 is roughly as follows. Figure 6As shown, each thermocouple tree 13 is equipped with a movable temperature sensor 11 and a fixed temperature sensor 12 at different heights in the fire simulation test chamber 60. The movable temperature sensor 11 changes with the ignition position, and two additional thermocouples are installed near the ground to obtain the temperature at different heights.

[0084] In one embodiment, a smart automatic sprinkler system response time index testing system is applied in a laboratory, using the aforementioned smart automatic sprinkler system response time index testing method. The laboratory is used to test the performance indicators of products such as smart automatic sprinkler systems to meet product manufacturing requirements. This laboratory is a real-time fire scene, ensuring the consistency of the performance parameters of the tested system products. It also solves the problem that traditional methods cannot detect real-time fire scene parameters. Furthermore, the smart automatic sprinkler system response time index testing system can also be applied to existing buildings.

[0085] In one embodiment, the fire simulation test chamber 60 is an internal hollow space with a length of 12 m and a width of 10 m. Roller shutters measuring 1.2 × 2 m are installed on both sides, and a chimney with a diameter of 0.8 m is opened in the ceiling for smoke exhaust. A schematic diagram of the actual scene of the fire simulation test chamber 60 is roughly as follows. Figure 7 As shown, an insulation layer was installed in the fire simulation test chamber 60, allowing for the creation of a realistic ignition point within the chamber to replicate the actual fire simulation test chamber environment. This resulted in a realistic fire simulation test chamber 60 exhibiting strong dynamic changes in temperature and wind speed. The ceiling is a movable suspended ceiling, 0.1 m above the surrounding walls, with a 0.8 m diameter chimney above it for smoke extraction. The ceiling can be raised or lowered according to test conditions; this embodiment uses two heights, 3 m and 6 m, for research. Figure 5 As shown, a wind speed detection device is installed at the chimney exhaust outlet to detect the flue gas velocity at the chimney exhaust outlet.

[0086] In one embodiment, when creating an ignition point inside the fire simulation test chamber 60, it can be achieved by means of electric spark ignition, electric heating wire ignition, electric welding ignition, etc.

[0087] For example, such as Figure 2 As shown, when the ceiling height is 3 meters, one fixed temperature sensor 12 can be installed at heights of 1 m, 2 m, and 3 m, and two additional fixed temperature sensors 12 can be installed at 0.5 m and 0.1 m to obtain the temperature at different heights. Figure 3As shown, when the ceiling height is 6 meters, one fixed temperature sensor 12 is installed at heights of 6 m, 5 m, and 4 m. Additional fixed temperature sensors 12 are installed near the ignition point at heights of 1 m, 2 m, and 3 m. A movable temperature sensor 11 moves with the ignition position, and two additional fixed temperature sensors 12 are installed at 0.5 m and 0.1 m to obtain temperatures at different heights. The data acquisition module 51 is connected to a data acquisition computer, enabling real-time acquisition and recording of temperature data.

[0088] In one embodiment, the smoke detection mechanism includes a smoke detector 30, a heat detector 40, and a wind speed detector 20. The smoke detector 30 and heat detector 40 are installed at each smoke detection point, and the position of the wind speed detector 20 is set according to the nozzle position and / or the area, height, and slope data of the fire simulation test chamber 60. The heat detector 40 is used to detect the smoke temperature, and the wind speed detector 20 is used to detect the smoke flow rate. The nozzle detection mechanism is installed at the nozzle and is used to detect the required nozzle temperature and the required nozzle response time. In this embodiment, the heat detector 40 can be of type A2. Both detectors are connected to a fire alarm, which is located outside the site and is manually controllable. Furthermore, in this embodiment, the heat detector 40 can be selected from JTW-ZD-JBF5110A, the smoke detector 30 can be selected from JTY-GD-JBF5100, and the fire alarm controller can be selected from JB-QB-JBF-51S01; the wind speed detection component 20 can be an anemometer, and further, two types of anemometers can be set: a high-temperature anemometer and a low-temperature anemometer. The high-temperature anemometer can be selected from Kano 6162, and the medium-low temperature anemometer can be selected from Haixia Industrial Control anemometer.

[0089] In one embodiment, smoke detection points are set on the movable ceiling according to the area, height, and slope data of the fire simulation test chamber 60, and the smoke detection points are evenly arranged in an array on the surface of the movable ceiling, and the smoke detection points can move with the movable ceiling.

[0090] In one embodiment, according to the requirements of national fire protection technical specifications, the control area and control radius of smoke detector 30 and heat detector 40 have certain standards. In this embodiment, the site area of ​​the fire simulation test chamber 60 is 120 m². 2 With a roof slope of less than 15°, the control area of ​​the smoke detector 30 is 60 m². 2 The control radius is 5.8 m. The control area of ​​the temperature sensor 40 is 20 m². 2 The control radius is 3.6 m. Based on the above calculations, the detector spacing at this site is 3 m, and the instrument arrangement is as follows: Figure 4As shown, 12 smoke detectors 30 and 12 heat detectors 40 are arranged above the ceiling, with an anemometer placed next to each smoke detector 30 to measure wind speed. The smoke detectors 30 and heat detectors 40 are connected to a fire alarm, which is located outside the site and manually controllable. This ensures that smoke from all locations within the fire simulation test chamber 60 can be detected by the smoke detectors 30 and heat detectors 40.

[0091] In one embodiment, the anemometers are positioned close to the nozzles, at a distance of 10 cm. High-temperature anemometers are placed at the two nozzles closest to the ignition point, while medium- and low-temperature anemometers are placed at the other nozzle locations, totaling 12 anemometers. Four anemometers are placed at the midpoint of each side of the gap between the ceiling and the four walls. One anemometer is placed at the chimney exhaust outlet above the ceiling, ensuring that the smoke velocity throughout the fire simulation test chamber 60 can be detected by the anemometers.

[0092] Table 1 Test values ​​of response time index of traditional glass bulb nozzle

[0093]

[0094] In one embodiment, as shown in Table 1, the response time index of the standard response nozzle, obtained by the above-described intelligent automatic sprinkler system response time index test method, is 126.27 (m / s). 0.5 The average error between the wind tunnel test data and the data of the sprinkler head is only 9.6%, which can meet the actual needs of engineering. This verifies the feasibility and accuracy of the test method for the response time index of the intelligent automatic sprinkler fire extinguishing system, so as to be further applied to calculate the response time index test value of the intelligent sprinkler head.

[0095] Table 2 Test values ​​of response time index of smart nozzles

[0096]

[0097] In one embodiment, as shown in Table 2, the response time index of the smart sprinkler head used in the test was determined to be 10.34 (m / s) according to the above-described test method for the response time index of the smart automatic sprinkler system. 0.5 .

[0098] Furthermore, one embodiment of the present invention provides a computer storage medium, and another embodiment of the present invention provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the steps of the above-mentioned intelligent automatic sprinkler fire extinguishing system response time index test method and achieve the same technical effect.

[0099] This invention also provides a computer program product that stores a program or instructions. When the program or instructions are executed by a processor, they implement the steps of the above-mentioned intelligent automatic sprinkler fire extinguishing system response time index test method and achieve the same technical effect.

[0100] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system, characterized in that, Include: The laboratory and / or the completed building acquire multidimensional data in real time, including the required ambient temperature, flue gas flow rate, flue gas temperature, required nozzle temperature, and required nozzle response time. The ambient temperature, the flue gas flow rate, the flue gas temperature, the required nozzle temperature, and the required nozzle response time are preprocessed to obtain the maximum flue gas flow rate, the highest flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time. A response time index test model is constructed. The input parameters of the response time index test model include the maximum flow rate of the flue gas, the highest temperature of the flue gas, the ambient temperature of the test environment, the temperature of the test nozzle, and the response time of the test nozzle. The output parameter of the response time index test model is the response time index.

2. The method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system according to claim 1, characterized in that, The real-time temperature of the fire simulation test chamber (60) is obtained by using movable temperature detection devices (11) and fixed temperature detection devices (12) arranged in the fire simulation test chamber (60) to obtain the required ambient temperature. The movable temperature detection devices (11) and fixed temperature detection devices (12) are arranged in a three-dimensional mesh in the fire simulation test chamber (60) according to the area, height and slope data of the fire simulation test chamber (60).

3. The method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system according to claim 2, characterized in that, The movable temperature detection element (11) is arranged and / or moved to the ignition point to detect the ambient temperature and obtain the desired ambient temperature.

4. The method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system according to claim 1, characterized in that, Based on the area, height, and slope data of the fire simulation test chamber (60), multiple smoke detection points are set up and smoke detectors (30) and heat detectors (40) are arranged to detect the smoke temperature; based on the location of the smoke detection points and / or based on the nozzle location, multiple wind speed detectors (20) are set up to detect the smoke flow rate.

5. The method for testing the response time index of an intelligent automatic sprinkler fire extinguishing system according to claim 1, characterized in that, The response time exponential test model is as follows: Where t represents the response time of the test nozzle, u represents the maximum flue gas velocity, T represents the maximum flue gas temperature, T0 represents the test ambient temperature, Tg represents the temperature at which the test nozzle starts, and RTI represents the response time index of the intelligent automatic sprinkler system.

6. A test device for the response time index of an intelligent automatic sprinkler fire extinguishing system, employing the test method for the response time index of an intelligent automatic sprinkler fire extinguishing system as described in any one of claims 1 to 5, characterized in that, The intelligent automatic sprinkler system response time index testing device (50) includes at least: Data acquisition module (51), the data acquisition module (51) is used to acquire the multidimensional data; Data processing module (52), the data processing module (52) is used to preprocess the multidimensional data; The test module (53) is used to construct the response time index test model. The input parameters of the response time index test model include the maximum flow rate of the flue gas, the highest temperature of the flue gas, the ambient temperature of the test environment, the temperature of the test nozzle, and the response time of the test nozzle. The output parameter of the response time index test model is the response time index.

7. The intelligent automatic sprinkler fire extinguishing system response time index testing device according to claim 6, characterized in that, The data acquisition module (51) includes: An ambient temperature acquisition unit is used to detect the desired ambient temperature. A flue gas detection unit, wherein the flue gas detection unit is used to detect the flue gas temperature and the flue gas flow rate; A nozzle detection unit is disposed on the nozzle and is used to detect the required nozzle temperature and the required nozzle response time of the nozzle.

8. A test system for the response time index of an intelligent automatic sprinkler fire extinguishing system, employing the test method for the response time index of an intelligent automatic sprinkler fire extinguishing system as described in any one of claims 1 to 5, characterized in that, The intelligent automatic sprinkler system response time index testing system includes at least the following: Fire simulation test chamber (60), the fire simulation test chamber (60) is equipped with a movable ceiling, the fire simulation test chamber (60) is used to simulate dynamic real fire scenarios; An ambient temperature acquisition mechanism (10) includes a movable temperature detection element (11) and a fixed temperature detection element (12); the movable temperature detection element (11) and the fixed temperature detection element (12) form a three-dimensional mesh structure and are disposed in the fire simulation test chamber (60); the movable temperature detection element (11) is movably disposed in the fire simulation test chamber (60), and the movable temperature detection element (11) can be moved to a position closer to the ignition point according to the location of the ignition point; The smoke detection mechanism includes a smoke detector (30), a heat detector (40), and a wind speed detector (20). The smoke detector (30) and the heat detector (40) are installed at each smoke detection point. The position of the wind speed detector (20) is set according to the nozzle position and / or the area, height, and slope data of the fire simulation test chamber (60). The heat detector (40) is used to detect the smoke temperature, and the wind speed detector (20) is used to detect the smoke flow rate. A nozzle detection mechanism is disposed on the nozzle and is used to detect the required nozzle temperature and the required nozzle response time of the nozzle. The controller receives the required ambient temperature, the flue gas flow rate, the flue gas temperature, the required nozzle temperature, and the required nozzle response time, and preprocesses them to obtain the test ambient temperature, the maximum flue gas flow rate, the maximum flue gas temperature, the test nozzle temperature, and the test nozzle response time; and constructs a response time index test model, wherein the input parameters of the response time index test model include the maximum flue gas flow rate, the maximum flue gas temperature, the test ambient temperature, the test nozzle temperature, and the test nozzle response time, and the output parameter of the response time index test model is the response time index.

9. The intelligent automatic sprinkler fire extinguishing system response time index testing system according to claim 8, characterized in that, The smoke detection points are set on the movable ceiling according to the area, height and slope data of the fire simulation test chamber (60), and the smoke detection points are evenly arranged in an array on the surface of the movable ceiling, and the smoke detection points move with the movable ceiling.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed, implements the method described in any one of claims 1 to 5.

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