Fire-fighting water jetting examination device

Abstract

The utility model relates to a fire-fighting water jet examination device, which belongs to the technical field of fire-fighting training devices and comprises a shell and a timer, a containing cavity is formed in the shell, the timer is fixed on the shell, and a water jet inlet communicated with the containing cavity and the outside of the containing cavity is formed in the front side of the shell. A pressure sensor connected with the controller is fixed to the rear end wall of the containing cavity, a pressure plate aligned with the water jetting inlet is fixed to the detection end of the pressure sensor, and the bottom of the containing cavity communicates with a water drainage pipe and a water collection pipe which extend out of the shell. A first electromagnetic valve located on one side of the water outlet end of the drainage pipe is arranged in the drainage pipe, and a flow meter and a second electromagnetic valve are sequentially arranged in the water collecting pipe in the water outlet direction of the water collecting pipe. The device has the advantages that the water jetting pressure can be ensured in the examination process, so that the effectiveness of water jetting can be improved, the accuracy of examination is further improved, and firefighters can carry out effective training conveniently.

Description

Technical Field

[0001] The utility model relates to a fire fighting water jet assessment device, belonging to the technical field of fire fighting training devices. Background Art

[0002] The accurate judgment of the fire point and water jet extinguishing in a fire scene are important links in fire fighting and rescue. In fire fighting training, a water jet assessment device is often used to improve the operation accuracy of firefighters during fire extinguishing. There is an existing patent in China with the patent number 201520876994.3 and the patent name "An Intelligent Water Jet Target", which includes a target shooting water tank and a target plate. The target plate is arranged above the target shooting water tank. A cavity is arranged inside the target plate. A circular opening of the cavity is arranged at the center of the front surface of the target plate. The cavity is communicated with the target shooting water tank through a waterway. The water column for target shooting training is input into the cavity from the circular opening and flows into the target shooting water tank through the waterway. Its beneficial effect is that it is not necessary to evaluate the water jet accuracy by knocking down the target plate. Only the water volume per unit time can be used to accurately evaluate the water jet efficiency. It has high fixing stability and can accurately judge the training effect. However, it still has the following disadvantages: the pressure of the water jet during training cannot be guaranteed, resulting in a decrease in the effectiveness of the water jet, thus reducing the accuracy of the assessment and making it impossible to conduct effective training and other problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fire fighting water jet assessment device, which solves the problems existing in the prior art that the pressure of the water jet during training cannot be guaranteed, resulting in a decrease in the effectiveness of the water jet, thus reducing the accuracy of the assessment and making it impossible to conduct effective training and other problems.

[0004] The above technical purpose of the utility model is mainly solved by the following technical scheme: a fire fighting water jet assessment device includes a housing with an accommodation cavity formed inside and a timer fixed on the housing. A water jet inlet communicating the accommodation cavity and the outside of the accommodation cavity is formed on the front side of the housing. A pressure sensor connected to a controller is fixed on the rear end wall of the accommodation cavity. The detection end of the pressure sensor is fixed with a pressure plate aligned with the water jet inlet. A drain pipe and a water collecting pipe extending to the outside of the housing are communicated with the bottom of the accommodation cavity. A first solenoid valve is arranged on one side of the water outlet end inside the drain pipe. A flow meter and a second solenoid valve are arranged in sequence along the water outlet direction inside the water collecting pipe. The first solenoid valve and the second solenoid valve are respectively connected to the controller.

[0005] When the device of the present utility model is in use, first, set the water jet pressure for triggering the pressure sensor according to the actual assessment situation. Let the person to be assessed stand at a specified distance directly in front of the device of the present utility model. At the start of the assessment, the assessor stands and holds a water gun to shoot water through the water jet inlet towards the pressure plate in the accommodation cavity. The water jet pressure is detected by the pressure sensor. When the water jet pressure does not reach the preset pressure value, the first solenoid valve is in the open state and the second solenoid valve is in the closed state. The water injected into the accommodation cavity is discharged to the outside of the housing through the drain pipe. When the water jet pressure reaches the preset pressure value, the pressure sensor sends a signal to the controller to enable the controller to control the timer to start, and at the same time control the first solenoid valve to close and control the second solenoid valve to open. The water injected into the accommodation cavity can be discharged to the outside of the housing through the water collecting pipe. At the same time, the water flow rate can be detected by the flow meter, so that the water flow rate per unit time can be obtained, and thus it can be judged whether the assessment is qualified according to the water flow rate per unit time. When the present utility model is assessing, the water flow rate is detected only when the water jet pressure reaches the preset pressure value, which can ensure the water jet pressure during the assessment process, thereby improving the effectiveness of the water jet, and further improving the accuracy of the assessment, so that firefighters can carry out effective training.

[0006] Preferably, a real fire simulation component is provided on the top of the housing. The real fire simulation component includes an ignition module and a gas supply module for supplying gas to the ignition module.

[0007] Preferably, the ignition module includes a water tank fixed on the top of the housing and an ignition box fixed on the rear side of the water tank. The top of the water tank is formed with an opening and there is water with a certain liquid level inside. The front side of the ignition box is communicated with an ignition pipe extending into the water tank. The outlet end of the ignition pipe is higher than the liquid level of the water in the water tank. An ignition needle connected to the controller is provided in the ignition pipe. An air inlet for communicating the inside of the ignition box with the outside is provided at the bottom of the ignition box.

[0008] By fixing a water tank located on the top of the housing and an ignition box fixed on the rear side of the water tank in the ignition module, the top of the water tank is formed with an opening and there is water with a certain liquid level inside. The front side of the ignition box is communicated with an ignition pipe extending into the water tank. The outlet end of the ignition pipe is higher than the liquid level of the water in the water tank. An ignition needle connected to the controller is provided in the ignition pipe. An air inlet for communicating the inside of the ignition box with the outside is provided at the bottom of the ignition box, so that when the assessment starts, the controller can control the ignition needle to start at the same time, supply the gas required for ignition through the gas supply module, and supply fresh air into the ignition box through the air inlet, so that when the ignition needle starts, an electric spark can be generated in the ignition pipe to ignite the pilot light, so as to generate a real fire to simulate a real fire scene subsequently.

[0009] Preferably, the gas supply module includes a main gas pipeline located at the rear side of the housing and communicating with an external gas source. A main control valve for controlling its opening and closing is provided on the main gas pipeline. A first gas pipeline extending into the water in the water tank and a second gas pipeline extending into the ignition box are communicated with the main gas pipeline. A first control valve and a second control valve for controlling their opening and closing are respectively provided on the first gas pipeline and the second gas pipeline. The first control valve and the second control valve are respectively connected to the controller.

[0010] By providing a main gas pipeline in the gas supply module, which is located at the rear side of the housing and communicates with an external gas source, a main control valve for controlling its opening and closing is provided on the main gas pipeline. A first gas pipeline extending into the water in the water tank and a second gas pipeline extending into the ignition box are communicated with the main gas pipeline. A first control valve and a second control valve for controlling their opening and closing are respectively provided on the first gas pipeline and the second gas pipeline. The first control valve and the second control valve are respectively connected to the controller. When the assessment starts, the controller can simultaneously control the ignition needle to start and control the main control valve, the first control valve and the second control valve to open, so that the gas in the main gas pipeline can be transported to the ignition box through the second gas pipeline, and fresh air can be transported into the ignition box through the air inlet, so that when the ignition needle starts, an electric spark can be generated in the ignition pipeline to ignite the pilot light. At the same time, the gas in the main gas pipeline can also be transported to the water in the water tank through the first gas pipeline, so that the water in the water tank bubbles upward, and a fire spread effect can be generated at the water surface to simulate a real fire scene, improving the on-site experience of the assessors to be closer to actual combat. And generating a fire in the water tank can prevent backdraft, improving the safety of the assessment. And the gas is evenly distributed on the water surface, making it easier to ignite. At the same time, it can also play the role of cooling the housing and the first gas pipeline.

[0011] Preferably, one end of the first gas pipeline located in the water in the water tank is closed. The part of the first gas pipeline located in the water in the water tank extends horizontally, and a plurality of air holes are provided on the surface of this part of the first gas pipeline. The plurality of air holes are arranged at intervals along the extension direction of the first gas pipeline and are located at the top of the first gas pipeline.

[0012] By setting one end of the first gas pipeline located in the water in the water tank to be closed, the part of the first gas pipeline located in the water in the water tank extends horizontally, and a plurality of air holes are provided on the surface of this part of the first gas pipeline. The plurality of air holes are arranged at intervals along the extension direction of the first gas pipeline and are located at the top of the first gas pipeline. The gas transported through the first gas pipeline can enter the water in the water tank through the plurality of air holes, making the gas distribution on the water surface uniform, easier to ignite, and at the same time, a large-area fire can be generated on the water surface.

[0013] Preferably, a plurality of the first gas pipelines are equidistantly arranged along the width direction of the water tank.

[0014] By arranging a plurality of the first gas pipelines equidistantly along the width direction of the water tank, a large-scale fire spread effect can be produced in the water tank to simulate a real fire scene.

[0015] Preferably, a reverse U-shaped anti-backflow part is formed on the part of the first gas pipeline located outside the water tank, and the horizontal section of the anti-backflow part is higher than the liquid level of the water in the water tank.

[0016] By forming a reverse U-shaped anti-backflow part on the part of the first gas pipeline located outside the water tank, and the horizontal section of the anti-backflow part is higher than the liquid level of the water in the water tank, it can effectively prevent the water in the water tank from flowing back into the main gas pipeline through the first gas pipeline.

[0017] Preferably, one end of the second gas pipeline located in the ignition box extends to the inlet end of the ignition pipeline.

[0018] By extending one end of the second gas pipeline located in the ignition box to the inlet end of the ignition pipeline, the gas in the ignition pipeline can be sufficient and uniform, and it is easier to ignite.

[0019] Therefore, the utility model has the advantages of being able to ensure the water injection pressure during the assessment process, thereby improving the effectiveness of water injection, further improving the accuracy of the assessment, so that firefighters can carry out effective training, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic cross-sectional structure diagram of the utility model;

[0021] Figure 2 is the utility model Figure 1 a schematic enlarged view of the structure at A in;

[0022] Figure 3 is a schematic top view structure diagram of the water tank in the utility model.

[0023] The marks in the drawings are described separately as follows: 1. housing; 2. accommodation cavity; 3. timer; 4. water injection inlet; 5. pressure sensor; 6. pressure plate; 7. drain pipe; 8. water collecting pipe; 9. first solenoid valve; 10. flowmeter; 12. second solenoid valve; 13. real fire simulation component; 14. ignition module; 15. gas supply module; 16. water tank; 17. ignition box; 18. ignition pipeline; 19. ignition needle; 20. air inlet; 21. main gas pipeline; 22. main control valve; 23. first gas pipeline; 24. second gas pipeline; 25. first control valve; 26. second control valve; 27. air outlet hole; 28. anti-backflow part. DETAILED DESCRIPTION OF THE INVENTION

[0024] The technical solution of the present utility model will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0025] As Figure 1 shown, a fire water jet assessment device according to the present utility model includes a housing 1 with an accommodation cavity 2 formed therein and a timer 3 fixed to the housing 1. A water jet inlet 4 communicating the accommodation cavity 2 with the outside of the accommodation cavity 2 is formed on the front side of the housing 1. A pressure sensor 5 connected to a controller is fixed to the rear end wall of the accommodation cavity 2. A pressure plate 6 aligned with the water jet inlet 4 is fixed to the detection end of the pressure sensor 5. A drain pipe 7 and a water collecting pipe 8 extending to the outside of the housing 1 are communicated with the bottom of the accommodation cavity 2. A first solenoid valve 9 is provided on one side of the water outlet end in the drain pipe 7. A flow meter 10 and a second solenoid valve 12 are sequentially provided in the water collecting pipe 8 along the water outlet direction thereof. The first solenoid valve 9 and the second solenoid valve 12 are respectively connected to the controller.

[0026] As Figure 1 and Figure 2 shown, a real fire simulation assembly 13 is provided on the top of the housing 1. The real fire simulation assembly 13 includes an ignition module 14 and a gas supply module 15 for supplying gas to the ignition module 14. The ignition module 14 includes a water tank 16 fixed to the top of the housing 1 and an ignition box 17 fixed to the rear side of the water tank 16. An opening is formed on the top of the water tank 16 and there is a certain liquid level of water inside it. An ignition pipe 18 extending into the water tank 16 is communicated with the front side of the ignition box 17. The outlet end of the ignition pipe 18 is higher than the liquid level of the water in the water tank 16. An ignition needle 19 connected to the controller is provided in the ignition pipe 18. An air inlet 20 for communicating the inside of the ignition box 17 with the outside is provided at the bottom of the ignition box 17.

[0027] As Figure 1 、 Figure 2 and Figure 3As shown in the figure, the gas supply module 15 includes a main gas pipeline 21 located at the rear side of the housing 1 and communicating with an external gas source. A main control valve 22 for controlling its opening and closing is provided on the main gas pipeline 21. A first gas pipeline 23 extending into the water in the water tank 16 and a second gas pipeline 24 extending into the ignition box 17 are communicated with the main gas pipeline 21. A plurality of first gas pipelines 23 are equidistantly arranged along the width direction of the water tank 16. One end of the first gas pipeline 23 located in the water of the water tank 16 is closed. The part of the first gas pipeline 23 located in the water of the water tank 16 extends horizontally, and a plurality of air holes 27 are provided on the surface of this part of the first gas pipeline 23. The plurality of air holes 27 are arranged at intervals along the extension direction of the first gas pipeline 23 and are located at the top of the first gas pipeline 23. The part of the first gas pipeline 23 located outside the water tank 16 forms an inverted U-shaped anti-backflow part 28. The horizontal section of the anti-backflow part 28 is higher than the liquid level of the water in the water tank 16. One end of the second gas pipeline 24 located in the ignition box 17 extends to the inlet end of the ignition pipeline 18. A first control valve 25 and a second control valve 26 for controlling their opening and closing are respectively provided on the first gas pipeline 23 and the second gas pipeline 24. The first control valve 25 and the second control valve 26 are respectively connected to the controller.

[0028] When this embodiment is specifically implemented, first, set the water injection pressure for triggering the pressure sensor 5 according to the actual assessment situation. Let the person to be assessed stand at a specified distance directly in front of the device. At the start of the assessment, the controller first controls the ignition pin 19 to start, and then controls the main control valve 22 and the second control valve 26 to open, so that the gas in the main gas pipeline 21 is transported to the ignition box 17 through the second gas pipeline 24, and fresh air can be transported into the ignition box 17 through the air inlet 20. An electric spark is generated in the ignition pipeline 18 by the ignition pin 19 to ignite the pilot light. After the flame detector detects that the pilot light is ignited, it controls the first control valve 25 to open and the ignition pin 19 to close. At this time, the gas in the main gas pipeline 21 is also transported to the water in the water tank 16 through the first gas pipeline 23, causing the water in the water tank 16 to bubble upward and producing an effect of large-scale fire spread at the water surface to simulate a real fire scene. Then, the assessor stands and holds a water gun to shoot water through the water injection inlet 4 at the pressure plate 6 in the accommodation cavity 2. The pressure sensor 5 detects the water injection pressure. When the water injection pressure does not reach the preset pressure value, the first solenoid valve 9 is in the open state and the second solenoid valve 12 is in the closed state. The water injected into the accommodation cavity 2 is discharged to the outside of the housing 1 through the drain pipe 7. When the water injection pressure reaches the preset pressure value, the pressure sensor 5 sends a signal to the controller to cause the controller to control the timer 3 to start, and at the same time control the first solenoid valve 9 to close and the second solenoid valve 12 to open. The water injected into the accommodation cavity 2 can be discharged to the outside of the housing 1 through the water collecting pipe 8. At the same time, the water flow meter 10 can detect the water output, so that the water output per unit time can be obtained, and thus it can be judged whether the assessment is qualified according to the water output per unit time. When the assessment is qualified or the assessment is unqualified within the specified time, the main control valve 22 automatically closes.

[0029] The utility model has the advantages that it can ensure the water injection pressure during the assessment process, thereby improving the effectiveness of water injection, further improving the accuracy of the assessment, and enabling effective training for firefighters.

Claims

1. A fire water jet assessment device, characterized in that: It includes a housing (1) with an accommodation cavity (2) formed inside, and a timer (3) fixed to the housing (1). A water injection inlet (4) communicating the accommodation cavity (2) with the outside of the accommodation cavity (2) is formed on the front side of the housing (1). A pressure sensor (5) connected to a controller is fixed to the rear end wall of the accommodation cavity (2). A pressure plate (6) aligned with the water injection inlet (4) is fixed to the detection end of the pressure sensor (5). A drain pipe (7) and a water collecting pipe (8) extending to the outside of the housing (1) are communicated and provided at the bottom of the accommodation cavity (2). A first solenoid valve (9) is provided on one side of the water outlet end in the drain pipe (7). A flow meter (10) and a second solenoid valve (12) are sequentially provided in the water collecting pipe (8) along its water outlet direction. The first solenoid valve (9) and the second solenoid valve (12) are respectively connected to the controller.

2. The fire water jet assessment device according to claim 1, characterized in that: A real fire simulation component (13) is provided on the top of the housing (1). The real fire simulation component (13) includes an ignition module (14) and a gas supply module (15) for delivering gas into the ignition module (14).

3. The fire water jet assessment device according to claim 2, wherein: The ignition module (14) includes a water tank (16) fixed to the top of the housing (1) and an ignition box (17) fixed to the rear side of the water tank (16). An opening is formed on the top of the water tank (16) and there is water with a certain liquid level inside it. An ignition pipe (18) extending into the water tank (16) is communicated and provided on the front side of the ignition box (17). The outlet end of the ignition pipe (18) is higher than the liquid level of the water in the water tank (16). An ignition needle (19) connected to the controller is provided in the ignition pipe (18). An air inlet (20) for communicating its inside with the outside is provided at the bottom of the ignition box (17).

4. The fire water jet assessment device according to claim 3, characterized in that: The gas supply module (15) includes a main gas pipeline (21) located at the rear side of the housing (1) and communicated with an external gas source. A main control valve (22) for controlling its opening and closing is provided on the main gas pipeline (21). A first gas pipeline (23) extending into the water in the water tank (16) and a second gas pipeline (24) extending into the ignition box (17) are communicated and provided on the main gas pipeline (21). A first control valve (25) and a second control valve (26) for controlling their opening and closing are respectively provided on the first gas pipeline (23) and the second gas pipeline (24). The first control valve (25) and the second control valve (26) are respectively connected to the controller.

5. The fire water jet assessment device according to claim 4, characterized in that: One end of the first gas pipeline (23) located in the water in the water tank (16) is closed. The part of the first gas pipeline (23) located in the water in the water tank (16) extends horizontally, and a plurality of air holes (27) are provided on the surface of this part of the first gas pipeline (23). The plurality of air holes (27) are arranged at intervals along the extension direction of the first gas pipeline (23) and are located at the top of the first gas pipeline (23).

6. The fire water jet assessment device according to claim 4 or 5, characterized in that: A plurality of first gas pipelines (23) are equidistantly provided along the width direction of the water tank (16).

7. A fire water jet assessment device according to claim 4 or 5, characterized in that: The portion of the first gas pipeline (23) located outside the water tank (16) is formed with an anti-backflow portion (28) in an inverted U shape, and the horizontal section of the anti-backflow portion (28) is higher than the liquid level of the water in the water tank (16).

8. A fire water jet assessment device according to claim 4 or 5, characterized in that: One end of the second gas pipeline (24) located inside the ignition box (17) extends to the inlet end of the ignition pipeline (18).

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