Fire extinguishing performance test platform for jet fire extinguishing device

Abstract

The invention discloses a fire extinguishing performance test platform for a jet fire extinguishing device, which belongs to the field of fire extinguishing device detection technology, and includes a test base and an installation top seat for installing an automatic jet fire extinguishing device, wherein the top of the test base is fixedly connected to the bottom of the installation top seat through two hydraulic push rods. The invention can use two fixed inverted bucket air bags to form a ring around the automatic jet fire extinguishing device in different states through the setting of a fixed inverted bucket air bag and a transition semi-ring, so that the water flow ejected from the insufficient sealing point during the fire extinguishing process is collected, and then judge whether the overall sealing performance of the automatic jet fire extinguishing device meets the standard. At the same time, through the setting of a control air pump and a detection rubber cavity, the control air pump can be used to simulate the hot air flow generated under different fires, and under the pressure detection of the pressure sensor in the detection rubber cavity, it is judged whether the water flow impact strength of the automatic jet fire extinguishing device meets the standard.

Description

Technical Field

[0001] The invention relates to the technical field of fire extinguishing device detection, in particular to a fire extinguishing performance testing platform for a jet fire extinguishing device. Background Art

[0002] Jet fire extinguishing is a firefighting technology that uses water or other fire extinguishing media to extinguish fires through high-pressure jets. Its core lies in automatically detecting the source of fire through a detection device, and driving the fire extinguishing device to spray accurately through a control system, thereby achieving rapid and effective fire extinguishing.

[0003] When a fire occurs in the current automatic tracking and positioning jet fire extinguishing device, the infrared flame detector in the protection area alarms, and the control host sends a scanning and detection instruction to the automatic tracking and positioning jet fire extinguishing device, starts the horizontal scanning and positioning detection device of the fire extinguishing device, drives the fire extinguishing device to rotate horizontally, and then starts the vertical scanning and positioning detection device after horizontal positioning, drives the jet muzzle to pitch and rotate, and after the location of the fire point is determined, water is sprayed to extinguish the fire. During use, the horizontal rotation part and the pitch rotation part of the fire extinguishing device are prone to poor sealing between the assembled pipes during the rotation process, thereby affecting the normal use of the fire extinguishing device. In addition, the jet fire extinguishing device is generally set at a high place in a large space. The impact strength of the jetted water flow will decrease with the increase of distance. When a fire occurs, the airflow during combustion will produce a turbulent effect, which will interfere with the flow path of the fire extinguishing jet, resulting in the fire extinguishing agent with insufficient impact strength cannot be accurately sprayed onto the fire source, thereby affecting the fire extinguishing effect. Therefore, a fire extinguishing performance test platform for jet fire extinguishing devices is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the horizontal rotation part and the pitch rotation part of the fire extinguishing device used in the prior art are prone to poor sealing between the assembled pipes during the rotation process, thereby affecting the normal use of the fire extinguishing device, and the jet fire extinguishing device is generally arranged at a high place in a large space. The impact strength of the sprayed water flow will decrease with increasing distance. When a fire occurs, the airflow during combustion will produce a turbulent effect, which will interfere with the flow path of the fire extinguishing jet, resulting in the problem that the fire extinguishing agent with insufficient impact strength cannot be accurately sprayed onto the fire source. A fire extinguishing performance test platform for a jet fire extinguishing device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fire extinguishing performance test platform for a jet fire extinguishing device comprises a test base and a mounting top seat for mounting an automatic jet fire extinguishing device, wherein the top of the test base is fixedly connected to the bottom of the mounting top seat through two hydraulic push rods, the top of the mounting top seat is fixedly connected to a top plate through a plurality of fixing rods, the bottom of the top plate is fixedly connected to a mounting platform through two electric push rods, two driving motors arranged opposite to each other are arranged below the mounting platform, the driving motors are connected to two assembly semi-rings through a sliding assembly, and the bottom of the assembly semi-ring is connected to a shaped inverted bucket airbag through a transition semi-ring;

[0007] An outer cover is fixedly connected to the top of the test base, a heat flow simulation component is connected to the inner wall of the outer cover, a simulation platform is connected to the top of the test base through a fixed arc plate, a plurality of mounting holes are provided on the simulation platform, an adjustment motor is provided below the mounting hole, a spiral blade is connected to the output end of the adjustment motor through a rotating shaft, a storage box is provided on the outside of the spiral blade, a combustion component is provided above the spiral blade, a protective bucket is provided on the outside of the combustion component, and a plurality of detection rubber cavities are fixedly connected to the inner wall of the protective bucket.

[0008] Preferably, two flame detectors symmetrically arranged are fixedly connected to the bottom end of the mounting top seat, and a mounting opening for assembly with an automatic jet fire extinguishing device is provided at the bottom end of the mounting platform.

[0009] Preferably, the sliding assembly consists of a threaded shaft and two threaded sleeves, the outer wall of the threaded shaft is threadedly connected to the threaded sleeve, the two threaded sleeve holes are provided with internal threads in opposite directions, the output end of the drive motor is fixedly connected to the end of the threaded shaft, and the two ends of the threaded shaft are rotatably connected to the bottom end of the mounting platform through two connecting plates.

[0010] Preferably, the side wall of the threaded sleeve is fixedly connected with an electromagnetic coil, and the two side walls of the electromagnetic coil are slidably connected with two sliding grooves through two slide plates, and the sliding grooves are fixedly connected to the bottom end of the mounting platform.

[0011] Preferably, the end of the threaded sleeve is fixedly connected to the side wall of the assembling semi-ring, the bottom end of the assembling semi-ring is fixedly connected to the top end of the transition semi-ring, the inner side wall of the transition semi-ring is fixedly connected to the outer side wall of the bottom end of the shaped bucket airbag, and the outer side wall of the transition semi-ring is fixedly connected with a hydraulic sensor.

[0012] Preferably, the thermal flow simulation component consists of an electric control guide ring and two control air pumps, the control air pump is slidingly connected to the electric control guide ring, the electric control guide ring is fixedly connected to the inner wall of the outer cover, and the control air pump is rotatably connected to the air pipe through an electric swivel seat.

[0013] Preferably, the simulation platform is provided with a drainage hole on the outside of the mounting hole, and the simulation platform is fixedly connected to a storage box at the bottom of the mounting hole through an inverted bucket, and the storage box contains a combustion agent.

[0014] Preferably, the output end of the adjustment motor is fixedly connected to the inner wall of the spiral blade through a rotating shaft, the inner wall of the mounting hole is fixedly connected to a temporary storage tube, the top of the temporary storage tube is fixedly connected to a combustion cover, and a plurality of through holes are opened on the combustion cover.

[0015] Preferably, the output end of the adjustment motor is fixedly connected to an isolation plug via a rotating shaft, the isolation plug is provided with a groove corresponding to the combustion cover, the bottom end of the protective bucket is fixedly connected to the top end of the simulation platform, a pressure sensor is arranged in the detection rubber cavity, and the inner wall of the protective bucket is connected to an igniter.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This scheme, through the setting of the shaped inverted bucket airbag and the transition semi-ring, can use the two shaped inverted bucket airbags to form a ring around the automatic jet fire extinguishing device in different states, so that the water flow ejected from the insufficiently sealed part during the fire extinguishing process can be collected, and then it can be judged whether the overall sealing performance of the automatic jet fire extinguishing device meets the standard based on this.

[0018] 2. This solution can use the control air pump to simulate the hot air flow conditions generated under different fire conditions by setting up the control air pump and the detection rubber cavity. Under the pressure detection of the pressure sensor in the detection rubber cavity, it can be judged whether the water flow impact strength of the automatic jet fire extinguishing device meets the standard, making the detection more convenient.

[0019] 3. This scheme can simulate the situation that the automatic jet fire extinguishing device may be subject to electromagnetic interference when used indoors by setting up the electromagnetic coil, and judge the anti-electromagnetic interference performance of the automatic jet fire extinguishing device, so as to make the test results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a fire extinguishing performance test platform for a jet fire extinguishing device proposed by the present invention;

[0021] Figure 2 It is an assembly diagram of a fire extinguishing performance test platform for a jet fire extinguishing device proposed by the present invention;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 This is a structural schematic diagram of the position of the shaped inverted bucket airbag in the fire extinguishing performance test platform for the jet fire extinguishing device proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the sliding assembly in the fire extinguishing performance test platform for the jet fire extinguishing device proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the heat flow simulation component in the fire extinguishing performance test platform for the jet fire extinguishing device proposed by the present invention;

[0026] Figure 7 for Figure 6 The enlarged view of point B in the middle;

[0027] Figure 8 This is a structural schematic diagram of the position of the spiral blades in the fire extinguishing performance test platform for the jet fire extinguishing device proposed by the present invention;

[0028] Fig. 9 This is a structural schematic diagram of the connection between the isolation plug and the combustion hood in the fire extinguishing performance test platform for the jet fire extinguishing device proposed by the present invention.

[0029] In the figure: 1. test base; 2. installation top seat; 3. automatic jet fire extinguishing device; 4. hydraulic push rod; 5. top plate; 6. electric push rod; 7. installation platform; 8. drive motor; 9. threaded shaft; 10. threaded sleeve plate; 11. electromagnetic coil; 12. slide plate; 13. slide groove; 14. assembly half ring; 15. transition half ring; 16. shaping inverted bucket airbag; 17. hydraulic sensor; 18. flame detector; 19. outer cover; 20. electric control guide ring; 21. control air pump; 22. electric swivel seat; 23. air pipe; 24. simulation platform; 25. adjustment motor; 26. spiral blade; 27. isolation plug; 28. storage box; 29. ​​inverted bucket; 30. temporary storage tube; 31. combustion cover; 32. protective bucket; 33. detection rubber cavity. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example, see Figures 1 to 9 , a fire extinguishing performance test platform for a jet fire extinguishing device, comprising a test base 1 and a mounting top seat 2 for mounting an automatic jet fire extinguishing device 3, the top of the test base 1 is fixedly connected to the bottom of the mounting top seat 2 through two hydraulic push rods 4, the top of the mounting top seat 2 is fixedly connected to a top plate 5 through a plurality of fixing rods, the bottom of the top plate 5 is fixedly connected to a mounting platform 7 through two electric push rods 6, two oppositely arranged drive motors 8 are arranged below the mounting platform 7, the drive motor 8 is connected to two assembly semi-rings 14 through a sliding assembly, and the bottom of the assembly semi-ring 14 is connected to a shaped bucket airbag 16 through a transition semi-ring 15;

[0034] Furthermore, two flame detectors 18 symmetrically arranged are fixedly connected to the bottom end of the mounting top seat 2, a mounting port for assembling with the automatic jet fire extinguishing device 3 is provided at the bottom end of the mounting platform 7, the sliding assembly is composed of a threaded shaft 9 and two threaded sleeves 10, the outer wall of the threaded shaft 9 is threadedly connected to the threaded sleeve 10, and the two threaded sleeves 10 holes are provided with internal threads in opposite directions, the output end of the driving motor 8 is fixedly connected to the end of the threaded shaft 9, and the two ends of the threaded shaft 9 are rotatably connected to the bottom end of the mounting platform 7 through two connecting plates, an electromagnetic coil 11 is fixedly connected to the side wall of the threaded sleeve 10, and two side walls of the electromagnetic coil 11 are slidably connected to two slide grooves 13 through two slide plates 12, the slide groove 13 is fixedly connected to the bottom end of the mounting platform 7, the end of the threaded sleeve 10 is fixedly connected to the side wall of the assembly semi-ring 14, the bottom end of the assembly semi-ring 14 is fixedly connected to the top of the transition semi-ring 15, the inner side wall of the transition semi-ring 15 is fixedly connected to the outer side wall of the bottom end of the stereotyped bucket airbag 16, and the outer side wall of the transition semi-ring 15 is fixedly connected to a hydraulic sensor 17;

[0035] It should be noted that: the installation platform 7 is pushed down to a low position by the electric push rod 6 at the bottom of the top plate 5, and then the automatic jet fire extinguishing device 3 to be detected is installed at the bottom of the installation platform 7 and connected to the fire water pump, and then the installation platform 7 is reset, and the automatic jet fire extinguishing device 3 is pushed up to a high position by the hydraulic push rod 4 to simulate the height environment when the automatic jet fire extinguishing device 3 is used. At this time, the automatic jet fire extinguishing device 3 establishes information communication with the flame detector 18 through the external controller. This is a prior art and will not be described in detail here.

[0036] After the simulated fire is completed, the flame detector 18 will determine the location of the fire point, and then control the automatic jet fire extinguishing device 3 to perform horizontal and pitch rotation by feeding back the external controller. During the rotation process, the drive motor 8 is started to drive the threaded shaft 9 to rotate. The rotation of the threaded shaft 9 will drive the two threaded sleeves 10 with opposite threaded holes to move relative to each other, and then drive the two assembly semi-rings 14 to move closer to each other. The movement of the assembly semi-rings 14 will drive the transition semi-rings 15 and the shaping inverted bucket airbags 16 to move together. The two shaping inverted bucket airbags 16 will close and press on the outside of the automatic jet fire extinguishing device 3. If the two rotating adjustment parts of the automatic jet fire extinguishing device 3 are not sealed enough, high-pressure water will flow during jet fire extinguishing. It is ejected from the part with insufficient sealing, impacts the transition semi-ring 15 and the shaped bucket airbag 16 and flows down. Then, as the water flow increases, the hydraulic sensor 17 will detect it and issue an alarm that the sealing of the automatic jet fire extinguishing device 3 is unqualified. Subsequently, a simulated fire will be simulated at different parts of the simulation platform 24. In the subsequent positioning and rotation process of the automatic jet fire extinguishing device 3, the electromagnetic coil 11 will be energized and electromagnetic interference will be generated to simulate the situation that the automatic jet fire extinguishing device 3 may be subject to electromagnetic interference when used indoors. In this case, the positioning of the automatic jet fire extinguishing device 3 is tested to be accurate. A comparison group test is formed with the above situation to determine the anti-electromagnetic interference performance of the automatic jet fire extinguishing device 3, so that the test result is more accurate.

[0037] The above advantages are: in this way, two shaped inverted bucket air bags 16 can be used to form a ring around the automatic jet fire extinguishing device 3 in different states, so that the water flow ejected from the insufficient sealing part during the fire extinguishing process can be collected, and then it can be judged whether the overall sealing performance of the automatic jet fire extinguishing device 3 meets the standard;

[0038] An outer cover 19 is fixedly connected to the top of the test base 1, and a heat flow simulation component is connected to the inner wall of the outer cover 19;

[0039] Furthermore, the thermal flow simulation component is composed of an electric control guide ring 20 and two control air pumps 21, the control air pump 21 is slidably connected to the electric control guide ring 20, the electric control guide ring 20 is fixedly connected to the inner wall of the outer cover 19, and the control air pump 21 is rotatably connected to the air pipe 23 through the electric rotating seat 22;

[0040] It should be noted that: when simulating the hot air flow during combustion, whether the electromagnetic coil 11 is energized remains the same, ensuring a single variable for the test control;

[0041] The top of the test base 1 is connected to a simulation platform 24 through a fixed arc plate. The simulation platform 24 is provided with a plurality of mounting holes. An adjustment motor 25 is provided below the mounting holes. The output end of the adjustment motor 25 is connected to a spiral blade 26 through a rotating shaft. A storage box 28 is provided outside the spiral blade 26. A combustion assembly is provided above the spiral blade 26. A protective bucket 32 ​​is provided outside the combustion assembly. A plurality of detection rubber cavities 33 are fixedly connected to the inner wall of the protective bucket 32.

[0042] Further, the simulation platform 24 is provided with a drainage hole on the outside of the mounting hole, and the simulation platform 24 is fixedly connected to the storage box 28 at the bottom of the mounting hole through an inverted bucket 29, and the storage box 28 is filled with a combustion agent. The output end of the adjustment motor 25 is fixedly connected to the inner wall of the spiral blade 26 through a rotating shaft, and the inner wall of the mounting hole is fixedly connected with a temporary storage tube 30, and the top of the temporary storage tube 30 is fixedly connected with a combustion cover 31, and the combustion cover 31 is provided with a plurality of through holes, and the output end of the adjustment motor 25 is fixedly connected with an isolation plug 27 through a rotating shaft, and the isolation plug 27 is provided with a groove corresponding to the combustion cover 31, and the bottom end of the protective bucket 32 ​​is fixedly connected to the top of the simulation platform 24, and a pressure sensor is arranged in the detection rubber cavity 33, and the inner wall of the protective bucket 32 ​​is connected with an igniter;

[0043] It should be noted that: the control starts the adjustment motor 25 at a certain place to rotate slowly, and then drives the spiral blade 26 and the isolation plug 27 to rotate together through the rotating shaft. The rotation of the spiral blade 26 will transport the fuel in the storage box 28 upward through the mounting hole of the simulation platform 24 (the fuel in the storage box 28 will be regularly replenished), and then the fuel is pressed into the temporary storage cylinder 30. The rotation of the isolation plug 27 will open the through hole on the combustion cover 31, so that the fuel is pressed out. At the same time, the igniter in the protective bucket 32 ​​will ignite the fuel, and control the simulated fire at a specific part. The adjustment motor 25 stops after rotating a fixed number of circles, so that the groove on the isolation plug 27 is just staggered with the through hole on the combustion cover 31, so as to avoid continuous combustion inside the combustion cover 31.

[0044] During the fire extinguishing process of the automatic jet fire extinguishing device 3, the impact water flow will accurately shoot to the fire extinguishing point and impact the detection rubber cavity 33 on the protective bucket 32. The pressure sensor in the detection rubber cavity 33 will sense the impact pressure of the water flow, and the water flow will flow down to the inverted bucket 29 through the leakage hole outside the installation hole to avoid water accumulation. When simulating the hot air flow during combustion, the air pump 21 is controlled to slide to the corresponding position on the electric control guide ring 20 according to the position of the ignition point, and the angle of the air pipe 23 is adjusted by the electric swivel seat 22 to simulate the direction of the hot air flow during combustion at the corresponding position. How to The air pump 21 is controlled to blow out a hot air flow (the air flow is heated by the electric heating wire to become a hot air flow, which is a conventional technical means). The hot air flow will affect the water flow ejected by the automatic jet fire extinguishing device 3. During the test, the hot air flow blown out is continuously increased to simulate the hot air flow generated under different fire combustion conditions. In this state, if the pressure sensed by the pressure sensor in the rubber cavity 33 changes or disappears, it means that the water flow ejected by the automatic jet fire extinguishing device 3 is affected, the impact strength of the water flow is insufficient, and the impact force of the water flow is reduced or the impact is offset, which does not meet the design requirements;

[0045] The above advantages are: in this way, the control air pump 21 can be used to simulate the hot air flow conditions generated under different fire conditions, and under the pressure detection of the pressure sensor in the rubber cavity 33, it can be judged whether the water flow impact strength of the automatic jet fire extinguishing device 3 meets the standard, making the detection more convenient;

[0046] When the present invention is in use, the installation platform 7 is pushed down to a low position by the electric push rod 6 at the bottom of the top plate 5, and then the automatic jet fire extinguishing device 3 to be detected is installed at the bottom of the installation platform 7 and connected to the fire water pump, and then the installation platform 7 is reset, and the automatic jet fire extinguishing device 3 is pushed up to a high position by the hydraulic push rod 4 to simulate the height environment when the automatic jet fire extinguishing device 3 is used. At this time, the automatic jet fire extinguishing device 3 establishes information communication with the flame detector 18 through an external controller, which is a prior art and will not be described in detail here, and then the adjustment motor 25 at a certain position is controlled to start to rotate slowly, and then the screw is driven by the rotating shaft. The spiral blade 26 and the isolation plug 27 rotate together. The rotation of the spiral blade 26 will transport the fuel in the storage box 28 upward through the mounting hole of the simulation platform 24 (the fuel in the storage box 28 will be regularly replenished), thereby pressing the fuel into the temporary storage tube 30. The rotation of the isolation plug 27 will open the through hole on the combustion cover 31, so that the fuel is pressed out. At the same time, the igniter in the protection bucket 32 ​​will ignite the fuel to control the simulated fire at a specific part. The adjustment motor 25 stops after rotating a fixed number of circles, so that the groove on the isolation plug 27 is just staggered with the through hole on the combustion cover 31, avoiding continuous combustion inside the combustion cover 31.

[0047] After the simulated fire is completed, the flame detector 18 will determine the location of the fire point, and then control the automatic jet fire extinguishing device 3 to perform horizontal and pitch rotation by feeding back the external controller. During the rotation process, the drive motor 8 is started to drive the threaded shaft 9 to rotate. The rotation of the threaded shaft 9 will drive the threaded sleeve plates 10 with opposite threaded holes to move relative to each other, and then drive the two assembly semi-rings 14 to approach each other and close together. The movement of the assembly semi-ring 14 will drive the transition semi-ring 15 and the shaping inverted bucket airbag 16 to move together. The two shaping inverted bucket airbags 16 will close and press on the outside of the automatic jet fire extinguishing device 3. If the two rotating adjustment parts of the automatic jet fire extinguishing device 3 are not sealed enough, when the jet fire is extinguished, a high-pressure water flow will be ejected from the insufficiently sealed part, impacting the transition semi-ring 15 and the shaping inverted bucket airbag 16 and flowing down. As the water flow increases, the hydraulic The sensor 17 will detect and send out an alarm that the sealing of the automatic jet fire extinguishing device 3 is unqualified. Subsequently, a simulated fire will be simulated at different parts of the simulation platform 24. In the subsequent positioning and rotation process of the automatic jet fire extinguishing device 3, the electromagnetic coil 11 will be energized and electromagnetic interference will be generated, simulating the situation that the automatic jet fire extinguishing device 3 may be subject to electromagnetic interference when used indoors. In this case, the positioning of the automatic jet fire extinguishing device 3 is tested to be accurate. A comparison group test is formed with the above situation to determine the anti-electromagnetic interference performance of the automatic jet fire extinguishing device 3, so that the test result is more accurate. In this way, two stereotyped inverted bucket airbags 16 can be used to form a ring around the automatic jet fire extinguishing device 3 in different states, so that the water flow ejected from the insufficient sealing during the fire extinguishing process is collected, and then based on this, it is determined whether the overall sealing performance of the automatic jet fire extinguishing device 3 meets the standard;

[0048] During the fire extinguishing process of the automatic jet fire extinguishing device 3, the impact water flow will accurately shoot to the fire extinguishing point and impact the detection rubber cavity 33 on the protective bucket 32. The pressure sensor in the detection rubber cavity 33 will sense the impact pressure of the water flow, and the water flow will flow down to the inverted bucket 29 through the leakage hole outside the installation hole to avoid water accumulation. When simulating the hot air flow during combustion (at this time, whether the above-mentioned electromagnetic coil 11 is energized or not remains consistent to ensure a single variable for the test comparison), the air pump 21 is controlled to slide to the corresponding position on the electric control guide ring 20 according to the position of the ignition point, and the angle of the air pipe 23 is adjusted by the electric swivel seat 22 to simulate the direction of the hot air flow during combustion at the corresponding position. How to blow out the hot air flow by controlling the air pump 21 (the air flow is heated by the electric heating wire) The hot air flow is a conventional technical means), and the hot air flow will affect the water flow ejected by the automatic jet fire extinguishing device 3. During the test, the hot air flow blown out is continuously increased to simulate the hot air flow conditions generated under different fire combustion conditions. In this state, the pressure sensed by the pressure sensor in the rubber cavity 33 changes or disappears, indicating that the water flow ejected by the automatic jet fire extinguishing device 3 is affected, the impact strength of the water flow is insufficient, and the impact force of the water flow is reduced or the impact is offset, which does not meet the design requirements. In this way, the control air pump 21 can be used to simulate the hot air flow conditions generated under different fire conditions. Under the pressure detection of the pressure sensor in the rubber cavity 33, it is judged whether the water flow impact strength of the automatic jet fire extinguishing device 3 meets the standard, making the detection more convenient.

[0049] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire extinguishing performance test platform for a jet fire extinguishing device, comprising a test base (1) and a mounting top seat (2) for mounting an automatic jet fire extinguishing device (3), characterized in that: The top of the test base (1) is fixedly connected to the bottom of the mounting top seat (2) via two hydraulic push rods (4); the top of the mounting top seat (2) is fixedly connected to a top plate (5) via a plurality of fixing rods; the bottom of the top plate (5) is fixedly connected to a mounting platform (7) via two electric push rods (6); two driving motors (8) arranged opposite to each other are arranged below the mounting platform (7); the driving motors (8) are connected to two assembly half rings (14) via a sliding assembly; the bottom of the assembly half ring (14) is connected to a shaped bucket air bag (16) via a transition half ring (15); The top of the test base (1) is fixedly connected to an outer cover (19), the inner wall of the outer cover (19) is connected to a heat flow simulation component, the top of the test base (1) is connected to a simulation platform (24) via a fixed arc plate, a plurality of mounting holes are provided on the simulation platform (24), an adjustment motor (25) is provided below the mounting holes, an output end of the adjustment motor (25) is connected to a spiral blade (26) via a rotating shaft, a storage box (28) is provided outside the spiral blade (26), a combustion component is provided above the spiral blade (26), a protective bucket (32) is provided outside the combustion component, a plurality of detection rubber cavities (33) are fixedly connected to the inner wall of the protective bucket (32), and the two shaped inverted bucket airbags (16) form a ring surrounding the automatic jet fire extinguishing device (3) in different states.

2. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 1, characterized in that: The bottom end of the mounting top seat (2) is fixedly connected to two flame detectors (18) arranged symmetrically to each other, and the bottom end of the mounting platform (7) is provided with a mounting opening for assembly with the automatic jet fire extinguishing device (3).

3. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 1, characterized in that: The sliding assembly is composed of a threaded shaft (9) and two threaded sleeves (10); the outer wall of the threaded shaft (9) is threadedly connected to the threaded sleeve (10); the two threads of opposite directions are provided in the holes of the two threaded sleeves (10); the output end of the drive motor (8) is fixedly connected to the end of the threaded shaft (9); and the two ends of the threaded shaft (9) are rotatably connected to the bottom end of the mounting platform (7) via two connecting plates.

4. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 3, characterized in that: The side wall of the threaded sleeve (10) is fixedly connected to an electromagnetic coil (11), and the two side walls of the electromagnetic coil (11) are slidably connected to two slide grooves (13) via two slide plates (12), and the slide grooves (13) are fixedly connected to the bottom end of the installation platform (7).

5. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 3, characterized in that: The end of the threaded sleeve (10) is fixedly connected to the side wall of the assembly semi-ring (14), the bottom end of the assembly semi-ring (14) is fixedly connected to the top end of the transition semi-ring (15), the inner side wall of the transition semi-ring (15) is fixedly connected to the outer side wall of the bottom end of the shaped bucket airbag (16), and the outer side wall of the transition semi-ring (15) is fixedly connected to a hydraulic sensor (17).

6. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 1, characterized in that: The thermal flow simulation component is composed of an electrically controlled guide ring (20) and two controlled air pumps (21); the controlled air pump (21) is slidably connected to the electrically controlled guide ring (20); the electrically controlled guide ring (20) is fixedly connected to the inner wall of the outer cover (19); and the controlled air pump (21) is rotatably connected to an air pipe (23) via an electric rotating seat (22).

7. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 1, characterized in that: The simulation platform (24) is provided with a drainage hole on the outside of the mounting hole. The simulation platform (24) is fixedly connected to a storage box (28) at the bottom of the mounting hole via an inverted bucket (29). The storage box (28) contains a combustion agent.

8. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 1, characterized in that: The output end of the adjustment motor (25) is fixedly connected to the inner wall of the spiral blade (26) via a rotating shaft, the inner wall of the mounting hole is fixedly connected to a temporary storage cylinder (30), the top end of the temporary storage cylinder (30) is fixedly connected to a combustion cover (31), and the combustion cover (31) is provided with a plurality of through holes.

9. The fire extinguishing performance testing platform for a jet fire extinguishing device according to claim 8, characterized in that: The output end of the adjustment motor (25) is fixedly connected to an isolation plug (27) via a rotating shaft, and a groove corresponding to the combustion cover (31) is formed on the isolation plug (27). The bottom end of the protection bucket (32) is fixedly connected to the top end of the simulation platform (24). A pressure sensor is provided in the detection rubber cavity (33), and an igniter is connected to the inner wall of the protection bucket (32).

Images