Non-stored-pressure automatic deflagration suppression performance test device

Abstract

The utility model discloses a non-stored-pressure automatic suppression deflagration performance test device which comprises a deflagration test tube, a first gas pressure sensor and a second gas pressure sensor, and the first gas pressure sensor and the second gas pressure sensor are both fixedly connected to the inner wall of the deflagration test tube. An information sensing unit and a control unit are arranged outside the deflagration test tube, and the first gas pressure sensor and the second gas pressure sensor are electrically connected with the information sensing unit through wires. According to the utility model, the detonation test tube, the first gas pressure sensor, the second gas pressure sensor, the fourth valve, the methane communication pipeline, the spark detector, the information sensing unit and the control unit are matched to detect the gas pressure in the two ends of the detonation test tube and collect and process the transmitted data; the test device can be conveniently controlled by using electronic equipment, so that the non-stored-pressure automatic deflagration suppression performance test can be completed.

Description

[0001] This application is a divisional application of application number: 2023233922315, application date December 13, 2023, and the name of the utility model patent application is: Non-pressure storage automatic suppression explosion performance test device. Technical Field

[0002] The utility model relates to the technical field of deflagration performance testing, in particular to a non-pressure storage automatic suppression deflagration performance testing device. Background Art

[0003] Deflagration is a combustion wave that propagates through heat transfer at a speed less than the speed of sound. Ignition of a flammable mixture in an exhaust gas recovery and treatment system will result in a deflagration of 10 times the initial pressure, with a propagation speed generally ranging from 10 to 300 m / s. The occurrence of a deflagration must meet three conditions (i.e., the three elements of deflagration), none of which can be missing: first, the accumulation of fuel and combustion-supporting air; second, the fuel and air mixture reaches a deflagration concentration; and third, there is sufficient ignition energy. In order to conduct scientific research on the deflagration phenomenon, a deflagration performance test device is needed to conduct deflagration experiments.

[0004] The utility model with the existing authorization announcement number CN217443268U discloses a deflagration test device, including a test bench, a test tube is arranged on the top of the test bench, the bottom of the test tube is connected to an air intake pipe, and a feeding mechanism is arranged on the air intake pipe; wherein the feeding mechanism includes a feeding pipe connected to the air intake pipe, a feeding funnel is connected to the top of the feeding pipe, and a control valve is arranged on the feeding pipe. By adopting the above technical scheme, dust particles can be added from the outside of the test tube through the feeding mechanism. Therefore, the test tube can be evacuated first, and then dust particles can be added from the feeding funnel to enter the air intake pipe. Then the control valve is closed. When gas is input into the test tube through the air intake pipe, the dust particles can be driven into the test tube together, thereby avoiding that part of the dust particles are vacuumed away in advance, reducing losses, and improving the accuracy of experimental data. At the same time, the dust particles have been fully mixed with the gas during the transportation process in the air intake pipe, and no mixing treatment is required after entering the test tube, thereby improving efficiency. However, the above technical scheme requires manual operation to perform the deflagration performance test, and the process of the deflagration performance test is relatively dangerous and is prone to safety accidents caused by operating errors. The electronic equipment of the deflagration performance test device cannot be controlled by the main control center. Not only is it not convenient to use the deflagration performance test device for experiments, it is also prone to safety accidents. Utility Model Content

[0005] The utility model aims to provide a non-pressure storage automatic suppression deflagration performance test device, which has the advantage that the electronic equipment of the deflagration performance test device can be controlled by a general control center.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A non-pressure storage automatic suppression deflagration performance test device comprises a deflagration test tube, a first gas pressure sensor and a second gas pressure sensor, wherein the first gas pressure sensor and the second gas pressure sensor are both fixedly connected to the inner wall of the deflagration test tube, an information sensing unit and a control unit are respectively arranged on the outside of the deflagration test tube, the first gas pressure sensor and the second gas pressure sensor are both electrically connected to the information sensing unit through a wire, a fourth valve is fixedly connected to the outer surface of the deflagration test tube, one end of the fourth valve is fixedly connected to a methane connecting pipe, a spark detector is fixedly connected to the inner wall of the deflagration test tube, and the spark detector is respectively electrically connected to the information sensing unit and the control unit through a wire.

[0008] Preferably, two steel guardrails are fixedly connected to the bottom surface of the deflagration test tube, and the two steel guardrails can stably support the deflagration test tube on a horizontal ground.

[0009] Preferably, the outer surface of the deflagration test tube is fixedly connected to a third valve, one end of the third valve is fixedly connected to an ignition device, and the information sensing unit and the control unit are both electrically connected to the ignition device via a wire.

[0010] Preferably, the outer surface of the deflagration test tube is fixedly connected to a second valve, one end of the second valve is fixedly connected to a pressure gauge, and the pressure gauge can detect the pressure of the gas passing through the second valve.

[0011] Preferably, the outer surface of the deflagration test tube is fixedly connected to a first valve, one end of the first valve is fixedly connected to a discharge pipe, and the first valve is controlled to discharge the gas after the deflagration test in the deflagration test tube through the discharge pipe.

[0012] Preferably, a high-speed camera is provided on one side of the ignition device, the high-speed camera is fixedly connected to the outer surface of the deflagration test tube, the high-speed camera is electrically connected to the control unit via a wire, and the high-speed camera can record the moment of deflagration in the deflagration test tube by video.

[0013] Preferably, the information sensing unit is capable of collecting and processing data transmitted by components such as the ignition device, the spark detector, the first gas pressure sensor and the second gas pressure sensor through wires.

[0014] Preferably, the control unit can control the switching actions of components such as the ignition device, the spark detector and the high-speed camera, and components such as the information sensing unit and the control unit can constitute an automatic control system of the non-pressure storage automatic suppression deflagration performance test device.

[0015] In the utility model, by providing a deflagration test tube, a first gas pressure sensor, a second gas pressure sensor, a fourth valve, a methane connecting pipe, a spark detector, an information sensing unit and a control unit, the fourth valve fixed on the outer surface of the deflagration test tube can be used to control the amount of methane entering the deflagration test tube through the methane connecting pipe, and the first gas pressure sensor and the second gas pressure sensor can be used to detect the gas pressure at both ends of the deflagration test tube, so that the device can be used to test the deflagration performance, and the spark detector can be installed on the inner wall of the deflagration test tube to effectively capture the infrared rays emitted by the spark in the pipe, even if the spark is hidden in dense materials, the spark detector can sensitively capture the spark, and the information sensing unit is used to collect and process the data transmitted by the spark detector, the first gas pressure sensor, the second gas pressure sensor and other components, so as to facilitate the use of electronic equipment to control the test device to complete the non-pressure storage automatic suppression deflagration performance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a test device control system module diagram of the utility model non-pressure storage automatic suppression deflagration performance test device; DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Please refer to the figure Figure 1 The utility model: a non-pressure storage automatic suppression deflagration performance test device, comprises a deflagration test tube, a first gas pressure sensor and a second gas pressure sensor, the first gas pressure sensor and the second gas pressure sensor are both fixedly connected to the inner wall of the deflagration test tube, the gas pressure sensor is a conversion device for measuring the absolute pressure of the gas, and can be used for pressure measurement of blood pressure, wind pressure and pipeline gas, etc., the model of the gas pressure sensor is QBE9000-P10, an information sensing unit and a control unit are respectively arranged on the outside of the deflagration test tube, the first gas pressure sensor and the second gas pressure sensor are both electrically connected to the information sensing unit through a wire, the outer surface of the deflagration test tube is fixedly connected to a fourth valve, one end of the fourth valve is fixedly connected to a methane connecting pipeline, the inner wall of the deflagration test tube is fixedly connected to a spark detector, the spark detector is a detection device for capturing infrared rays emitted by sparks in the pipeline, the model of the spark detector is MSE-T3, and the spark detector is electrically connected to the information sensing unit and the control unit through wires.

[0019] Two steel guardrails are fixedly connected to the bottom surface of the deflagration test tube, and the two steel guardrails can stably support the deflagration test tube on the horizontal ground. By fixing the two steel guardrails in the required safe position, the deflagration test tube can be firmly fixed in the required safe position, so that the deflagration test tube can be used to safely and stably carry out the deflagration performance test.

[0020] A third valve is fixedly connected to the outer surface of the deflagration test tube, one end of the third valve is fixedly connected to an ignition device, the information sensing unit and the control unit are electrically connected to the ignition device through a wire, a third valve is fixedly connected to the outer surface of the deflagration test tube, and the ignition device is fixed on one side of the third valve, the third valve and the ignition device can be controlled by the control unit to safely ignite the methane in the deflagration test tube.

[0021] A second valve is fixedly connected to the outer surface of the deflagration test tube, and a pressure gauge is fixedly connected to one end of the second valve. The pressure gauge can detect the pressure of the gas passing through the second valve. A second valve is fixedly connected to the outer surface of the deflagration test tube, and the pressure gauge is used to detect and record the pressure to which the deflagration test tube is subjected during the deflagration process.

[0022] A first valve is fixedly connected to the outer surface of the deflagration test tube, and one end of the first valve is fixedly connected to a discharge pipe. The first valve is controlled to discharge the gas in the deflagration test tube after the deflagration test through the discharge pipe. By controlling the first valve, the gas in the deflagration test tube can be discharged through the discharge pipe, thereby facilitating the next use of the deflagration test tube.

[0023] A high-speed camera is arranged on one side of the ignition device. The high-speed camera is a device that can capture moving images with an exposure of less than 1 / 1000 second or a frame rate of more than 250 frames per second. The model of the high-speed camera is JVCGC-PX100. The high-speed camera is fixedly connected to the outer surface of the deflagration test tube. The high-speed camera is electrically connected to the control unit through a wire. The high-speed camera can record the moment of deflagration in the deflagration test tube by video. By using the high-speed camera arranged on one side of the deflagration test tube, the high-speed shooting performance of the high-speed camera can be utilized to record the test process of the deflagration performance test device by video.

[0024] The information perception unit can collect and process data transmitted by components such as the ignition device, the spark detector, the first gas pressure sensor and the second gas pressure sensor through wires, the information perception unit records the ignition time of the ignition device, the information perception unit captures and records the infrared rays detected by the spark detector, and the information perception unit records the gas pressures before and after the deflagration in the deflagration test tube measured by the first gas pressure sensor and the second gas pressure sensor.

[0025] The control unit can control the switching actions of components such as the ignition device, the spark detector and the high-speed camera. Components such as the information perception unit and the control unit can constitute an automatic control system of the non-pressure storage automatic suppression deflagration performance test device. The control unit can control the ignition device to ignite, the control unit can control the spark detector to perform spark detection, and the control unit can control the high-speed camera to film the deflagration test in the deflagration test tube.

[0026] The working principle of the utility model is: when in use, first connect the third valve, the spark detector, the high-speed camera, the first gas pressure sensor and the second gas pressure sensor to the power supply; when it is necessary to use the non-pressure storage automatic suppression deflagration performance test device to conduct a deflagration performance test, first use two steel guardrails fixed on the bottom of the deflagration test tube to firmly support the deflagration test tube in a required position, and connect the methane connecting pipe with the external methane delivery pipe; the amount of the deflagration performance test raw material delivered into the deflagration test tube can be controlled by controlling the fourth valve; and the ignition device fixed at one end of the third valve can be used to control the ignition device and the third valve through the control unit, and the action of the ignition device is recorded by the information sensing unit, so as to The gas pressures before and after the deflagration at both ends of the deflagration test tube are detected by the first gas pressure sensor and the second gas pressure sensor, so as to facilitate the use of the information sensing unit to collect, record and analyze the data of the first gas pressure sensor and the second gas pressure sensor. Then, the methane in the deflagration test tube is deflagrated by controlling the ignition device and the third valve, and the moment of the deflagration is recorded by a high-speed camera connected to the information sensing unit. The pressure of the deflagration test tube during the deflagration is detected by a pressure gauge fixedly connected to the second valve, and the spark detector is used to capture and record the infrared rays emitted by the spark in the deflagration test tube. After the deflagration test is completed, the gas in the deflagration test tube is discharged by controlling the first valve, so as to facilitate the next deflagration test.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-pressure storage automatic suppression deflagration performance test device, comprising a deflagration test tube, a first gas pressure sensor and a second gas pressure sensor, characterized in that: The first gas pressure sensor and the second gas pressure sensor are both fixedly connected to the inner wall of the deflagration test tube, and an information sensing unit and a control unit are respectively provided on the outside of the deflagration test tube, and the first gas pressure sensor and the second gas pressure sensor are both electrically connected to the information sensing unit through a wire, and a fourth valve is fixedly connected to the outer surface of the deflagration test tube, and one end of the fourth valve is fixedly connected to a methane connecting pipe, and a spark detector is fixedly connected to the inner wall of the deflagration test tube, and the spark detector is electrically connected to the information sensing unit and the control unit respectively through a wire.

2. The non-pressure storage automatic suppression deflagration performance test device according to claim 1 is characterized in that: The bottom surface of the deflagration test tube is fixedly connected to two steel guardrails, and the two steel guardrails can stably support the deflagration test tube on a horizontal ground.

3. The non-pressure storage automatic suppression deflagration performance test device according to claim 1 is characterized in that: The outer surface of the deflagration test tube is fixedly connected to a third valve, one end of the third valve is fixedly connected to an ignition device, and the information sensing unit and the control unit are both electrically connected to the ignition device through a wire.

4. The non-pressure storage automatic suppression deflagration performance test device according to claim 1 is characterized in that: The outer surface of the deflagration test tube is fixedly connected to a second valve, one end of the second valve is fixedly connected to a pressure gauge, and the pressure gauge can detect the pressure of the gas passing through the second valve.

5. The non-pressure storage automatic suppression deflagration performance test device according to claim 1 is characterized in that: The outer surface of the deflagration test tube is fixedly connected with a first valve, one end of which is fixedly connected with a discharge pipe. The first valve is controlled to discharge the gas after the deflagration test in the deflagration test tube through the discharge pipe.

6. The non-pressure storage automatic suppression deflagration performance test device according to claim 3 is characterized in that: A high-speed camera is provided on one side of the ignition device. The high-speed camera is fixedly connected to the outer surface of the deflagration test tube. The high-speed camera is electrically connected to the control unit through a wire. The high-speed camera can record the moment of deflagration in the deflagration test tube.

7. The non-pressure storage automatic suppression deflagration performance test device according to claim 3 is characterized in that: The information sensing unit can collect and process data transmitted by the ignition device, the spark detector, the first gas pressure sensor and the second gas pressure sensor through wires.

8. The non-pressure storage automatic suppression deflagration performance test device according to claim 6 is characterized in that: The control unit can control the switching actions of the ignition device, the spark detector and the high-speed camera, and the information perception unit and the control unit can constitute an automatic control system of the non-pressure storage automatic suppression deflagration performance test device.

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