Explosion-resistant performance detection system, method and terminal for structures

Abstract

The embodiment of the present invention provides a system and method for detecting the explosion resistance of a structure, and a terminal and method, which belong to the field of chemical technology. By constructing a simulated explosion box with a special structure, and then igniting the combustible mixed gas in the simulated explosion box, the explosion scene caused by gas leakage in the actual industrial environment is restored, so as to measure the environmental parameters around the structure when the gas explodes, so as to further evaluate the explosion resistance of the structure.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical engineering, and in particular to a system, method and terminal for detecting explosion-proof performance of a structure. Background Art

[0002] There are a large number of flammable and explosive substances in petrochemical plants. Once an explosion occurs, it will cause damage to buildings and structures, and may also cause a large number of casualties among people in the buildings. Accidents that have occurred in refineries in recent years have shown that accidents related to steam cloud explosions (combustible vapor clouds) caused by equipment leakage have a wide range of damage and great destructive power, often causing a large number of casualties in places where people gather near the plant.

[0003] Current research mainly focuses on explosion experiments on the mixture of flammable gases and combustion-supporting gases and the determination of explosion limits, but there is almost no research on testing the explosion resistance of buildings and structures. The shock wave resistance of buildings and their key components when a flammable vapor cloud explosion occurs cannot be accurately evaluated. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a system, method and terminal for detecting the explosion resistance of a structure, by filling a combustible mixed gas in a specially designed simulated explosion box and igniting the combustible mixed gas when the concentration reaches a concentration threshold, thereby measuring the environmental parameters around the structure at this time.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a system for detecting the explosion-proof performance of a structure, the system comprising: a gas distribution device, a simulated explosion box, an ignition source, a data processing device, and a measuring device, the gas distribution device being used to fill the simulated explosion box with the combustible mixed gas; the simulated explosion box is composed of a blockage and a film surrounding the blockage, and the simulated explosion box comprises: a concentration detection device being used to detect the concentration of the combustible mixed gas in the simulated explosion box; the data processing device sends the concentration of the combustible mixed gas to a terminal; the ignition source comprising: an ignition control unit and an ignition device, the ignition control unit being used to control the ignition device to ignite the combustible mixed gas in response to an ignition instruction sent by the terminal; the measuring device being used to measure the environmental parameters around the structure when the combustible mixed gas is ignited.

[0006] Optionally, the environmental parameters around the structure include at least one or more of the following: atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and gas explosion image; the data processing device is also used to store the atmospheric temperature, the atmospheric pressure, the wind speed and the atmospheric humidity, and send the gas explosion image, the atmospheric temperature, the atmospheric pressure, the wind speed and the atmospheric humidity to the terminal.

[0007] Optionally, the measuring equipment includes at least one or more of the following: a temperature measuring device, a pressure measuring device, a wind speed measuring device, a humidity measuring device and a camera device, which are used to measure the atmospheric temperature, the atmospheric pressure, the wind speed, the atmospheric humidity and the gas explosion image, respectively.

[0008] Optionally, there are multiple groups of the temperature measuring device, the pressure measuring device, the wind speed measuring device, and the humidity measuring device, which are used to measure the atmospheric temperature, the atmospheric pressure, the wind speed, and the atmospheric humidity at multiple location points around the structure.

[0009] Optionally, the system further includes: a weather station for collecting and storing weather conditions around the system and sending them to the terminal.

[0010] Optionally, the gas distribution equipment includes: a first flow meter and a first air intake valve, which are used to control the amount of combustible gas flowing out of the combustible gas cylinder; a second flow meter and a second air intake valve, which are used to control the amount of air flowing out of the compressed gas cylinder, wherein the combustible gas and the air flowing out are merged into a gas supply conduit to form the combustible mixed gas; and a third air intake valve, which is used to control the gas supply conduit to transport the combustible mixed gas to the simulated explosion box.

[0011] Optionally, the obstruction is formed by splicing a plurality of tubular objects with different diameters and / or lengths; the system further comprises: a fixing device, the fixing device comprising a support fixable to the ground for fixing the structure.

[0012] Correspondingly, the present invention also provides a terminal, which includes: a receiving device for receiving the concentration of a combustible mixed gas sent by an anti-explosion performance detection device of a structure; a processing device for generating an ignition command when the concentration of the combustible mixed gas exceeds a concentration threshold; and a sending device for sending the ignition command to the anti-explosion performance detection device of the structure.

[0013] Optionally, the receiving device is also used to receive the gas explosion image and the atmospheric temperature, atmospheric pressure, wind speed, and atmospheric humidity; the terminal also includes: a display device for displaying the gas explosion image and the atmospheric temperature, the atmospheric pressure, the wind speed, and the atmospheric humidity.

[0014] Optionally, the receiving device is also used to receive meteorological conditions around the explosion-proof performance detection device for structures sent by a meteorological station; and the display device is also used to display the meteorological conditions.

[0015] Optionally, the terminal is arranged in a safety protection room, wherein the safety protection room is explosion-proof and has a small window on the wall.

[0016] Correspondingly, the present invention also provides a method for detecting the explosion-proof performance of a structure, the method comprising: filling the combustible mixed gas into a simulated explosion box; detecting the concentration of the combustible mixed gas in the simulated explosion box; sending the concentration of the combustible mixed gas to a terminal; controlling an ignition device to ignite the combustible mixed gas in response to an ignition command sent by the terminal; and measuring environmental parameters around the structure when the combustible mixed gas is ignited.

[0017] Correspondingly, an embodiment of the present invention also provides a method for detecting the explosion-proof performance of a structure, which is applied to a terminal and is characterized in that the method includes: receiving the concentration of a combustible mixed gas sent by an explosion-proof performance detection device of the structure; generating an ignition command when the concentration of the combustible mixed gas exceeds a concentration threshold; and sending the ignition command to the explosion-proof performance detection device of the structure.

[0018] Through the above technical scheme, the present invention fills a simulated explosion box composed of an obstruction and a thin film surrounding the obstruction with a combustible mixed gas, ignites the combustible mixed gas after the concentration of the combustible mixed gas reaches a concentration threshold, and simultaneously measures the environmental parameters around the structure, thereby providing technical support for further research on the shock wave overpressure generated by the explosion of a combustible vapor cloud and the design and protection of buildings where personnel are concentrated.

[0019] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural block diagram of a system for detecting explosion-proof performance of a structure provided in one embodiment of the present invention.

[0022] Figure 2 It is a structural block diagram of a terminal provided by an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of a system and terminal for detecting explosion-proof performance of a structure provided in one embodiment of the present invention.

[0024] Figure 4 It is a flow chart of a method for detecting explosion-proof performance of a structure provided by one embodiment of the present invention.

[0025] Figure 5 The present invention is a flowchart of a method for a terminal provided by an embodiment of the present invention.

[0026] Figure 6 It is an interactive flow chart of a system for detecting explosion-proof performance of a structure and a terminal provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0027] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0028] Figure 1 It is a structural block diagram of an explosion-proof performance detection system for a structure provided by an embodiment of the present invention, wherein the system comprises: a gas distribution device, a simulated explosion box, an ignition source, a data processing device, and a measuring device, wherein the gas distribution device is used to fill a combustible mixed gas into the simulated explosion box; the simulated explosion box is composed of a blockage and a film surrounding the blockage, and the simulated explosion box comprises: a concentration detection device, used to detect the concentration of the combustible mixed gas in the simulated explosion box; the data processing device sends the concentration of the combustible mixed gas to a terminal; the ignition source comprises: an ignition control unit and an ignition device, and the ignition control unit is used to control the ignition device to ignite the combustible mixed gas in response to an ignition instruction sent by the terminal; and the measuring device is used to measure environmental parameters around the structure when the combustible mixed gas is ignited.

[0029] Specifically, according to the proportion of pipelines in the pipeline layout in the petrochemical plant area, a simulated explosion box consisting of an obstruction and a film surrounding the obstruction is designed. The film is used to fix the flammable mixed gas to simulate the gas leakage environment in the actual industrial production process, so that the overall layout and congestion in the simulated explosion box are close to the actual situation. This design scheme has high repeatability, low cost, and can efficiently simulate the actual industrial environment.

[0030] The gas distribution device fills the simulated explosion box with a combustible mixed gas, wherein the simulated explosion box includes a concentration detection device for detecting the concentration of the combustible mixed gas, and sends the concentration of the combustible mixed gas to the terminal through the data processing device. The data processing device can be electrically connected to the concentration detection device to receive and store the concentration of the combustible mixed gas, wherein the concentration of the combustible mixed gas measured by the concentration detection device is a digital signal, and the data processing device is also used to convert the digital signal into an analog signal that can be processed by the terminal, and then send it to the terminal for further processing by the terminal.

[0031] The terminal sends an ignition command based on the concentration of the combustible mixed gas. The ignition control unit responds to the ignition command to control the ignition device to ignite the combustible mixed gas in the simulated explosion box. At the same time, the measuring equipment measures the environmental parameters around the structure at this time. Among them, the specific location where fire is prone to occur in the actual industrial explosion scenario can be referred to, so as to control the ignition device to ignite at the corresponding ignition location.

[0032] Optionally, in this embodiment, the obstruction may be formed by splicing a plurality of tubular objects with different diameters and / or lengths to simulate an actual industrial environment; the system may also include: a fixing device, the fixing device including a support that can be fixed to the ground, for fixing the structure. The environmental parameters surrounding the structure include at least one or more of the following: atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and gas explosion image; and the measuring equipment includes at least one or more of the following: a temperature measuring device, a pressure measuring device, a wind speed measuring device, a humidity measuring device and a camera device, respectively used to collect the atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and gas explosion image in the environmental parameters. The data processing device is also used to store and process the atmospheric temperature, atmospheric pressure, wind speed and atmospheric humidity (for example, format conversion between digital and analog signals), and send the gas explosion image, atmospheric temperature, atmospheric pressure, wind speed and atmospheric humidity to the terminal. The camera device may be a high-speed camera with an automatic storage function. After collecting the gas explosion image, it can be directly stored in the internal storage module, and the image can be directly transmitted to the terminal without being processed by the data processing device. The system may also include: a weather station for collecting and storing the weather conditions of the environment in which the system is located and sending them to the terminal. The measuring equipment mainly measures the environmental parameters around the structure when the combustible mixed gas is ignited, and the weather station collects and stores the weather conditions before the combustible mixed gas is ignited and during the entire ignition process, so that the environmental parameters before and after ignition and at different locations can be further compared and analyzed.

[0033] Among them, a temperature measuring device, a pressure measuring device, a wind speed measuring device, and a humidity measuring device are taken as a group, and there can be multiple groups of temperature measuring devices, pressure measuring devices, wind speed measuring devices, and humidity measuring devices, which are respectively set at multiple positions around the structure to measure the atmospheric temperature, atmospheric pressure, wind speed, and atmospheric humidity at each of the positions. Preferably, each position point is set between the simulated explosion box and the structure, and is distributed in an array form.

[0034] The embodiment of the present invention constructs a simulated explosion box with a special structure, and then ignites the combustible mixed gas in the simulated explosion box to restore the explosion scenario caused by gas leakage in the actual industrial environment, thereby measuring the environmental parameters around the structure during the gas explosion, so as to further evaluate the explosion resistance of the structure.

[0035] Figure 2 A structural block diagram of a terminal provided for an embodiment of the present invention, the terminal comprising: a receiving device for receiving the concentration of a combustible mixed gas sent by an anti-explosion performance detection device of a structure; a processing device for generating an ignition command when the concentration of the combustible mixed gas exceeds a concentration threshold; and a sending device for sending an ignition command to the anti-explosion performance detection device of the structure.

[0036] The concentration of the combustible mixed gas received by the receiving device may be an analog signal that can be directly processed by the processing device.

[0037] In this embodiment, the receiving device can also be used to receive gas explosion images and atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and meteorological conditions sent by the meteorological station; the terminal can also include a display device for displaying gas explosion images and atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and meteorological conditions sent by the meteorological station. After the explosion experiment is over, when the displayed atmospheric pressure returns to the atmospheric pressure before the experiment, the data collection can be terminated, the damage to the structure can be observed, and its explosion resistance can be analyzed.

[0038] In addition, the terminal can be installed in a safety protection room with explosion-proof performance and small windows on the wall to ensure observation of explosion phenomena and monitoring of environmental data under the condition of safety of the staff.

[0039] The present embodiment provides a method for generating an ignition command according to the concentration of the combustible mixed gas sent by the explosion-proof performance detection system of the structure, thereby controlling the system to perform a gas ignition action, restoring the ignition conditions of the combustible mixed gas, realizing the simulation of the shock wave of a combustible vapor cloud explosion accident in a petrochemical enterprise, completing the real-time detection and display of the environmental parameters of the explosion process, and further analyzing the explosion-proof performance of the structure.

[0040] Figure 3 A schematic diagram of a system and terminal for detecting explosion resistance of a structure provided in one embodiment of the present invention, the system includes: gas distribution equipment, a simulated explosion box, an ignition source, a data processing device, and a measuring device. The gas distribution equipment includes a first flow meter 3 and a first air intake valve 4, which are used to control the amount of combustible gas flowing out of the combustible gas cylinder 2; a second flow meter 6 and a second air intake valve 7, which are used to control the amount of air flowing out of the compressed gas cylinder 5, wherein the combustible gas and air flowing out are merged into the gas transmission conduit to form a combustible mixed gas; and a third air intake valve, which is used to control the gas transmission conduit to transport the combustible mixed gas to the simulated explosion box 1. The combustible gas includes but is not limited to methane, ethane, propane, butane, ethylene, propylene and other combustible gases.

[0041] Specifically, when starting the test, first open the first air intake valve 4 (combustible gas distribution valve) and the second air intake valve 7 (air distribution valve), and at the same time observe the first flow meter 3 (combustible gas flow meter) and the second flow meter 6 (air flow meter) to adjust the opening of the two valves, thereby controlling the air intake volume so that the volume ratio of combustible gas and air reaches the ratio required for the test, and then open the mixed gas intake valve 8 to allow the mixed gas to enter the obstruction. When the combustible gas reaches the concentration threshold, close the mixed gas intake valve 8.

[0042] The gas distribution equipment delivers a combustible mixed gas to the simulated explosion box 1. The simulated explosion box 1 is composed of an obstruction and a film surrounding the obstruction. The obstruction can be composed of a plurality of tubular objects with different diameters and / or lengths, so as to simulate the same congestion as in the actual working conditions. A concentration detection device 14 is provided in the simulated explosion box 1, which is used to detect the concentration of the combustible mixed gas delivered by the gas distribution equipment to the simulated explosion box 1, and transmit the detected concentration of the combustible mixed gas to the data processing device 13. The data processing device 13 stores and processes the detected concentration of the combustible mixed gas, completes automatic recording of the data, and remotely transmits it to the terminal 10, which is convenient and fast and prevents data loss. After the terminal 10 receives the detected concentration of the combustible mixed gas, it sends an ignition command to the ignition source 9 when the concentration of the combustible mixed gas exceeds the concentration threshold. The ignition control unit in the ignition source 9 is connected to the terminal 10. The terminal 10 can remotely send a wireless signal to the ignition control unit to control the ignition device for ignition. The ignition device can be an ion ignition gun. The ignition position of the ion ignition gun can be determined according to the on-site situation for ignition.

[0043] The measuring device 12 includes at least one or more of the following: a temperature measuring device, a pressure measuring device, a wind speed measuring device, a humidity measuring device and a camera device, which are used to measure the atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and gas explosion images respectively. Among them, the temperature measuring device, the pressure measuring device, the wind speed measuring device and the humidity measuring device can be a temperature sensor, a pressure sensor, a wind speed sensor and a humidity sensor respectively. These sensors can have multiple groups, each of which is arranged in an array distribution between the simulated explosion box 1 and the structure 11, and is used to detect the environmental parameters of each position point between the simulated explosion box 1 and the structure 11 under the shock wave generated by the explosion, and transmit them to the data processing device 13 for storage and processing, and then sent to the terminal 10 by the data processing device 13. The structure 11 is fixed by a fixing device having a support that can be fixed to the ground. Through the fixing device, the detection system can perform explosion performance detection on structures or buildings such as doors, windows, walls, and houses. The camera device 16 can be a high-speed camera to collect image information during the explosion in real time.

[0044] The system in this embodiment also includes a weather station 15, which is used to collect and store the weather conditions of the environment in which the system is located before igniting the combustible mixed gas and during the entire ignition process, and transmit them in real time to the terminal 10. The weather conditions may include data such as atmospheric temperature, atmospheric pressure, and air humidity.

[0045] The terminal 10 may be a personal computer device including a display for displaying the atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity, gas explosion images and meteorological conditions after receiving them, so as to provide real-time monitoring for the staff.

[0046] The terminal 10 can be arranged in a safety protection room 17 which has explosion-proof performance and has a small window on the wall, so as to ensure observation of explosion phenomena and monitoring of environmental data under the condition of safety of the staff.

[0047] The embodiment of the present invention utilizes gas distribution equipment to configure a specific proportion and amount of combustible mixed gas, which is then transported to a simulated explosion box. When the concentration of the combustible mixed gas in the simulated explosion box reaches a concentration threshold, it is ignited, and simultaneously the environmental parameters of multiple positions between the simulated explosion box and the structure are detected and displayed. The above scheme can be used to simulate a full-scale explosion environment, and by filling a specific proportion and type of combustible mixed gas, the shock wave overpressure generated by different combustible vapor cloud explosions can be studied, and the explosion resistance of the structure can be evaluated, thereby providing technical support for the involvement and protection of personnel-concentrated buildings.

[0048] Figure 4 1 is a flow chart of a method for detecting explosion-proof performance of a structure provided by an embodiment of the present invention, the method comprising the following steps:

[0049] Step S401, filling the simulated explosion box with a combustible mixed gas.

[0050] Specifically, according to the proportion of pipelines in the pipeline layout in the petrochemical plant area, a simulated explosion box consisting of an obstruction and a film surrounding the obstruction is designed to simulate the actual industrial environment, so that the congestion in the simulated explosion box is close to the actual situation, wherein the obstruction can be spliced ​​by multiple tubular objects with different diameters and / or lengths, and the tubular object can be a stainless steel pipe. Then a certain proportion of combustible mixed gas is transported into the simulated explosion box to simulate the scene of gas leakage.

[0051] Step S402, detecting the concentration of the combustible mixed gas in the simulated explosion box.

[0052] Step S403, sending the concentration of the combustible mixed gas to the terminal.

[0053] Specifically, the concentration of the combustible mixed gas can be detected by using a concentration detection device, and then the concentration of the combustible mixed gas can be sent to the terminal by using a data processing device.

[0054] Step S404, controlling the ignition device to ignite the combustible mixed gas in response to the ignition instruction sent by the terminal.

[0055] Step S405, measuring the environmental parameters around the structure when the combustible mixed gas is ignited.

[0056] Among them, environmental parameters may include atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and gas explosion images. When the combustible mixed gas is ignited, multiple groups of sensors can be arranged in an array to detect the atmospheric temperature, atmospheric pressure, wind speed and atmospheric humidity at multiple locations between the simulated explosion device and the structure. After the gas explodes and the atmospheric pressure returns to the value before the gas explosion, data collection can be stopped.

[0057] Optionally, this embodiment may further include step S407, collecting and storing meteorological conditions and sending them to the terminal, wherein the meteorological conditions are meteorological conditions in the explosion environment.

[0058] The specific working principle and benefits of the explosion-proof performance detection method for a structure provided in an embodiment of the present invention are similar to the specific working principle and benefits of the explosion-proof performance detection system for a structure provided in the above embodiment, and will not be repeated here.

[0059] Figure 5 A flowchart of a method provided by an embodiment of the present invention, the method is used in a terminal, and includes the following steps:

[0060] Step S501, receiving the concentration of the combustible mixed gas sent.

[0061] Step S502: When the concentration of the combustible mixed gas exceeds the concentration threshold, an ignition command is generated.

[0062] Step S503, sending the ignition instruction.

[0063] Specifically, the terminal sends an ignition command to the explosion-proof performance detection system of the structure, and the explosion-proof performance detection system performs an ignition test and detects the gas explosion image and atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity, and sends it to the terminal, which receives the gas explosion image and atmospheric temperature, atmospheric pressure, wind speed, and atmospheric humidity (step S504) and displays them (step S505).

[0064] On the other hand, the terminal also receives the meteorological conditions around the explosion-proof performance detection device for the structure sent by the meteorological station (step S506), and displays the meteorological conditions (step S507).

[0065] The specific working principle and benefits of the method for a terminal described in the embodiment of the present invention are similar to the specific working principle and benefits of the terminal in the above embodiment, and are not described in detail here.

[0066] Figure 6 The interactive flow chart of the explosion-proof performance detection system and terminal of a structure provided in one embodiment of the present invention, on the one hand, the explosion-proof performance detection system of the structure detects meteorological conditions and transmits them to the terminal for real-time display and storage. On the other hand, the simulated explosion box in the explosion-proof performance detection system of the structure is filled with a combustible mixed gas, the concentration of the combustible mixed gas is detected and sent to the terminal, when the concentration of the combustible mixed gas reaches the concentration threshold, the terminal sends an ignition command to the system to perform an explosion test, the system detects the entire explosion process and the atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and gas explosion image after the explosion, and sends them to the terminal for real-time display and storage, until the atmospheric pressure returns to the value before the explosion, the data collection can be stopped.

[0067] The communication between the terminal and the explosion-proof performance detection system of the structure may be a remote communication method.

[0068] The specific working principle and benefits of the interaction between the explosion-proof performance detection system and the terminal of the structure provided in the embodiment of the present invention are similar to the specific working principle and benefits of the explosion-proof performance detection system and the terminal of the structure described in the above embodiment, and will not be repeated here.

[0069] The optional implementation modes of the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical scheme of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0071] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions to enable a single-chip microcomputer, a chip or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0072] In addition, various implementation modes of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed by the embodiments of the present invention.

Claims

1. A system for detecting explosion-proof performance of a structure, characterized in that: The system includes: gas distribution equipment, simulated explosion box, ignition source, data processing equipment, measuring equipment, The gas distribution equipment is used to fill the simulated explosion box with a combustible mixed gas; The simulated explosion box is composed of a blockage and a film surrounding the blockage, the film is used to fix the combustible mixed gas, the blockage is composed of a plurality of tubular objects with different diameters and / or lengths, so as to simulate the overall layout and congestion of the structure, and the simulated explosion box includes: a concentration detection device, which is used to detect the concentration of the combustible mixed gas in the simulated explosion box; The data processing device sends the concentration of the combustible mixed gas to the terminal; An ignition source, comprising: an ignition control unit and an ignition device, wherein the ignition control unit is used to control the ignition device to ignite the combustible mixed gas in response to an ignition instruction sent by the terminal; The measuring device is used to measure environmental parameters around the structure when the combustible mixed gas is ignited.

2. The system according to claim 1, characterized in that The environmental parameters around the structure include at least one or more of the following: atmospheric temperature, atmospheric pressure, wind speed, atmospheric humidity and gas explosion image; The data processing device is also used to store the atmospheric temperature, the atmospheric pressure, the wind speed, and the atmospheric humidity, and send the gas explosion image, the atmospheric temperature, the atmospheric pressure, the wind speed, and the atmospheric humidity to a terminal.

3. The system according to claim 2, characterized in that The measuring equipment includes at least one or more of the following: a temperature measuring device, a pressure measuring device, a wind speed measuring device, a humidity measuring device and a camera device, which are respectively used to measure the atmospheric temperature, the atmospheric pressure, the wind speed, the atmospheric humidity and the gas explosion image.

4. The system according to claim 3, characterized in that The temperature measuring device, the pressure measuring device, the wind speed measuring device, and the humidity measuring device are provided in multiple groups and are used to measure the atmospheric temperature, the atmospheric pressure, the wind speed, and the atmospheric humidity at multiple locations around the structure.

5. The system according to claim 1, characterized in that The system further comprises: a weather station for collecting and storing weather conditions around the system, wherein the weather station collects and stores weather conditions before igniting the combustible mixed gas and during the entire ignition process, and sends them to the terminal.

6. The system according to claim 1, characterized in that The gas distribution equipment comprises: The first flow meter and the first air inlet valve are used to control the amount of combustible gas flowing out of the combustible gas cylinder; A second flow meter and a second air inlet valve are used to control the amount of air flowing out of the compressed gas cylinder, wherein the combustible gas and the air flowing out are merged into the gas delivery conduit to form the combustible mixed gas; and The third air intake valve is used to control the air delivery conduit to deliver the combustible mixed gas to the simulated explosion box.

7. The system according to claim 1, characterized in that The system further comprises: A fixing device comprises a support that can be fixed to the ground and is used to fix the structure.

8. The system according to any one of claims 1 to 7, characterized in that: The terminal comprises: A receiving device, used for receiving the concentration of the combustible mixed gas sent by the data processing device; a processing device, for generating an ignition instruction when the concentration of the combustible mixed gas exceeds a concentration threshold; A sending device is used to send the ignition instruction to the ignition control unit.

9. The system according to claim 8, characterized in that The receiving device is also used to receive gas explosion images and atmospheric temperature, atmospheric pressure, wind speed, and atmospheric humidity; The terminal further includes: A display device is used to display the gas explosion image and the atmospheric temperature, the atmospheric pressure, the wind speed, and the atmospheric humidity.

10. The system according to claim 9, characterized in that The receiving device is also used to receive the meteorological conditions around the explosion-proof performance detection device for structures sent by the meteorological station; The display device is also used to display the meteorological conditions.

11. The system according to claim 8, characterized in that The terminal is arranged in a safety protection room, wherein the safety protection room is explosion-proof and has a small window on the room wall.

12. A method for detecting explosion-proof performance of a structure, characterized in that: The method comprises: Filling a simulated explosion box with a combustible mixed gas, wherein the simulated explosion box is composed of a blocker and a film surrounding the blocker, the film is used to fix the combustible mixed gas, and the blocker is composed of a plurality of tubular objects with different diameters and / or lengths, so as to simulate the overall layout and congestion of the structure; Detecting the concentration of the combustible mixed gas in the simulated explosion box; sending the concentration of the combustible mixed gas to a terminal; Controlling an ignition device to ignite the combustible mixed gas in response to an ignition instruction sent by the terminal; Environmental parameters around the structure are measured when the combustible gas mixture is ignited.

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