A flame arrester with real-time detection of detonation and deflagration resistance under hydrogen

Abstract

The present invention provides a flame arrester with real-time detection of detonation and deflagration resistance under hydrogen, comprising a flame arrester body, which comprises two mounting shells and a fire arrester element; the two mounting shells are fixed and connected by a plurality of screws; the fire arrester element is located between the two mounting shells, and when the two mounting shells are fixedly connected, the fire arrester element is fixed. When the flame arrester of the present invention is used, when hydrogen is transported, the first flow sensor monitors the hydrogen transport flow in real time. When the hydrogen flow monitored by the first flow sensor is less than the hydrogen transport amount, the two blocking mechanisms seal the ends of the two mounting shells, and the two detection tubes are slid to the second state in the mounting hole by two electric push rods. The fire resistance performance of the fire arrester element can be detected by the fire detection component, thereby understanding whether the fire resistance performance of the fire arrester element is normal, and ensuring that the flame arrester body can smoothly prevent fire when a fire occurs.

Description

Technical Field

[0001] The invention relates to the technical field of flame arresters, and in particular to a flame arrester with real-time detection performance of detonation and deflagration resistance under hydrogen. Background Art

[0002] Flame arresters are safety devices used to prevent the spread of flames of flammable gases and flammable liquid vapors. They are generally installed in pipelines that transport flammable gases, or on ventilated tanks, to prevent the spread of flames (deflagration or detonation). They consist of a flame arrester core, a flame arrester shell, and accessories. Flame arresters are also commonly used on pipelines that transport flammable gases. If flammable gases are ignited, the gas flame will spread to the entire pipe network. In order to prevent this danger from occurring, flame arresters must also be used. Flame arresters can also be used on pipelines with open flame equipment to prevent flashback accidents. However, they cannot prevent the open flame combustion of flammable gases and liquids that are burned in the open.

[0003] Since hydrogen is an extremely flammable gas, flame arresters are installed on the pipelines during hydrogen transportation to prevent combustion of hydrogen in the transportation section from spreading to the entire pipeline network. However, with long-term use of the pipelines, the flame arrester core may become clogged, thus affecting the flame arrester's fire-blocking effect. Most existing flame arresters are equipped with pressure measuring devices to monitor the pressure inside the flame arrester to ensure that any abnormalities in hydrogen transportation are discovered in a timely manner. However, the flame arrester core's fire-blocking performance cannot be tested, resulting in an inability to understand the flame arrester's fire-blocking performance and to ensure that the flame arrester can successfully block fire in the event of a fire.

[0004] Therefore, the present application proposes a flame arrester with real-time detection of detonation and deflagration resistance performance under hydrogen. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a flame arrester with real-time detection of detonation and deflagration resistance under hydrogen, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A flame arrester capable of real-time detection of detonation and deflagration resistance under hydrogen, comprising a flame arrester body, which comprises two mounting shells and a flame arrester element; the two mounting shells are fixed and connected by a plurality of screws; the flame arrester element is located in the two mounting shells, and when the two mounting shells are fixedly connected, the flame arrester element is fixed;

[0008] A connecting shell connected to the two mounting shells is fixedly mounted on one end of the two mounting shells away from the fire-blocking element; a blocking mechanism acting on the mounting shells is installed in the connecting shells for blocking the mounting shells;

[0009] A first flow sensor is fixedly mounted on the top wall of one of the mounting shells, a detection hole is provided on the side wall of the mounting shell and on the side opposite to the connecting shell and the fire-blocking element, a mounting block is fixed on the mounting shell and located at the detection hole, a mounting hole connected to the detection hole is provided in the mounting block, a detection tube that fits the inner wall thereof is slidably mounted in the mounting hole, an electric push rod for driving the detection tube to slide is mounted on the mounting block, a mounting groove is provided on the side wall of the detection tube at one end away from the electric push rod, a fire detection assembly is installed in the mounting groove, which is used to detect the fire-blocking performance of the fire-blocking element;

[0010] The detection tube slides in the mounting hole through the electric push rod to form two states;

[0011] First state: the detection tube and the fire detection assembly are both located in the installation hole, and the detection hole is blocked;

[0012] Second state: the detection tube is located in the installation hole and the fire detection component is located in the installation shell.

[0013] Furthermore: the blocking mechanism includes a blocking plate hingedly mounted in the connecting shell, a rubber pad is fixedly mounted on the side wall of the blocking plate, and a first motor for driving the blocking plate to rotate in the connecting shell is mounted on the connecting shell.

[0014] Further: the fire detection component includes:

[0015] There are two partitions, which are fixedly installed in two mounting grooves respectively. The first industrial camera and the electric flamethrower are installed in the mounting groove where the fire-blocking element is far away from the first flow sensor. The first industrial camera and the electric flamethrower are respectively located on both sides of the partition. The second industrial camera is installed in the other mounting groove. The second industrial camera is located on one side of the partition. An automatic fire extinguisher is provided on the other side of the partition.

[0016] Furthermore: a vent pipe connected to the mounting hole is installed on the top of the mounting block, a cavity is opened in the detection tube and located on the side of the mounting groove close to the electric push rod, an air inlet is opened on the top of the detection tube, and an exhaust port is opened on the side wall, and the air inlet and exhaust port are both connected to the cavity. When the detection tube slides in the mounting hole through the electric push rod, it also has a third state;

[0017] The third state: the air inlet is connected to the vent pipe, and the exhaust port is located in the installation shell; when the detection tube is in the first state or the second state, the detection tube blocks the vent pipe.

[0018] Furthermore: a communication hole is opened on the side wall of the connecting shell and communicates with the interior thereof, the two communication holes are connected by a communication pipe, and the blocking mechanism has two states;

[0019] First state: the blocking plate is rotated in the connecting shell by the first motor so that the blocking plate blocks the communicating hole;

[0020] Second state: the blocking plate is rotated in the connecting shell by the first motor, so that the blocking plate blocks the mounting shell.

[0021] Furthermore: an overpressure detection mechanism is installed on the installation shell of the fire-blocking element away from the first flow sensor, which is used to perform overpressure detection on the interior of the installation shell.

[0022] Furthermore: the overpressure detection mechanism includes a connecting pipe fixedly mounted on the top of the mounting shell, the connecting pipe is connected to the interior of the mounting shell, and a solenoid valve, a one-way valve, and a second flow sensor are mounted on the connecting pipe;

[0023] The one-way valve is located above the solenoid valve, and the second flow sensor is fixedly installed in the connecting pipe and located above the one-way valve.

[0024] Furthermore: a third flow sensor and a fourth flow sensor are respectively installed on the two detection tubes and located in the cavity, and the third flow sensor is installed on the detection tube on the side of the fire-blocking element away from the first flow sensor.

[0025] Furthermore, an inspection port is provided at the bottom of the mounting block, and the inspection port is blocked by the detection tube. When the detection tube slides in the mounting hole through the electric push rod to form a first state, the mounting groove is located directly above the inspection port; when the detection tube slides in the mounting hole through the electric push rod to form a second state, the exhaust port is located directly above the inspection port.

[0026] The mounting block is provided with a mounting opening connected to the mounting hole at one end away from the mounting shell. A bearing in the mounting opening is connected to a rotating ring. The electric push rod is fixedly connected to the rotating ring. A driving mechanism connected to the rotating ring is installed on the mounting block.

[0027] Furthermore: the driving mechanism includes a second motor fixedly mounted on the mounting block, the output shaft of the second motor is coaxially fixedly connected to a driving gear, and the rotating ring is coaxially fixedly connected to a driven gear meshing with the driving gear.

[0028] The present invention provides a flame arrester capable of real-time detection of detonation and deflagration resistance in hydrogen. Compared with the prior art, it has the following advantages:

[0029] When the flame arrester of the present invention is used, when hydrogen is transported, the first flow sensor monitors the hydrogen transport flow in real time. When the hydrogen flow monitored by the first flow sensor is less than the hydrogen transport amount, the two sealing mechanisms cooperate with the electric push rod to seal the two mounting shell ends, and the two detection tubes are slid to the second state in the mounting hole through the two electric push rods. The fire protection detection component can be used to detect the fire protection performance of the fire protection element, so as to understand whether the fire protection performance of the fire protection element is normal, and ensure that the flame arrester body can smoothly prevent fire when a fire occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 Shows a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 Shows a front view of the present invention;

[0033] Figure 3 The present invention shows Figure 2 The three-dimensional structure cross-sectional view in the AA direction;

[0034] Figure 4 Shows an enlarged view of A in the figure of the present invention;

[0035] Figure 5 The present invention shows Figure 2 A sectional view of the three-dimensional structure in the middle BB direction;

[0036] Figure 6 The present invention shows Figure 2 Cross-sectional view of the three-dimensional structure in the CC direction;

[0037] Figure 7 The present invention shows Figure 6 Enlarged view of point B in the middle;

[0038] Figure 8 The present invention shows Figure 6 Enlarged view of point C in the middle;

[0039] Figure 9 The present invention shows Figure 6 Enlarged view of point D in the middle;

[0040] Figure 1: 1. Flame arrester body; 11. Mounting housing; 111. Detection hole; 12. Flame arrester element; 13. First flow sensor; 2. Connecting housing; 21. Connecting hole; 22. Connecting pipe; 23. Blocking mechanism; 231. Blocking plate; 232. Rubber pad; 233. First motor; 3. Mounting block; 31. Mounting hole; 32. Detection pipe; 321. Mounting slot; 322. Cavity; 3221. Third flow sensor; 3222. Fourth flow sensor; 323. Air inlet; 3 24. Exhaust port; 33. Ventilation pipe; 34. Rotating ring; 35. Driving mechanism; 351. Second motor; 352. Driving gear; 353. Driven gear; 36. Inspection port; 37. Mounting port; 4. Electric push rod; 5. Fire detection component; 51. Partition; 52. First industrial camera; 53. Electric flamethrower; 54. Second industrial camera; 55. Automatic fire extinguisher; 6. Overpressure detection mechanism; 61. Solenoid valve; 62. One-way valve; 63. Second flow sensor; 64. Connecting pipe. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] In order to solve the technical problems in the background technology, the following flame arrester with real-time detection of detonation and deflagration resistance under hydrogen is provided:

[0044] Combine Figures 1-9As shown, the present invention provides a flame arrester for real-time detection of detonation and deflagration resistance under hydrogen, comprising a flame arrester body 1, which comprises two mounting shells 11 and a fire arrester element 12, wherein, in the present embodiment, the fire arrester element 12 is a fire arrester net; the two mounting shells 11 are fixed and connected by a plurality of screws; the fire arrester element 12 is located in the two mounting shells 11, and when the two mounting shells 11 are fixedly connected, the fire arrester element 12 is fixed; the ends of the two mounting shells 11 away from the fire arrester element 12 are fixedly mounted with a connecting shell 2 connected thereto; a blocking mechanism 23 acting on the mounting shell 11 is installed in the connecting shell 2, which is used to block the mounting shell 11; a first flow sensor 13 is fixedly mounted on the top wall of one of the mounting shells 11, and a detection hole 111 is opened on the side wall of the mounting shell 11 and located on the opposite side of the connecting shell 2 and the fire arrester element 12, and a mounting member is fixed on the mounting shell 11 and located at the detection hole 111 The cam 32 is provided with a plurality of holes 321 on the top of the cam 32 so that the cam 32 can be opened and closed.

[0045] When the flame arrester body 1 of the present invention is in use, when hydrogen is transported, the first flow sensor 13 monitors the hydrogen transport flow in real time. When the hydrogen flow monitored by the first flow sensor 13 is less than the hydrogen transport amount, the two blocking mechanisms 23 cooperate with the electric push rod 4 to seal the ends of the two mounting shells 11. The two electric push rods 4 are used to slide the two detection tubes 32 in the mounting holes 31 to the second state. The fire detection component 5 can then be used to detect the fire resistance of the fire arrester element 12, thereby understanding whether the fire resistance of the fire arrester element 12 is normal, and ensuring that the flame arrester body 1 can successfully prevent fire when a fire occurs.

[0046] Example 2

[0047] like Figures 1-9 As shown, based on the above embodiment, this embodiment further provides the following content:

[0048] In this embodiment, the blocking mechanism 23 includes a blocking plate 231 hingedly mounted in the connecting shell 2, a rubber pad 232 is fixedly mounted on the side wall of the blocking plate 231, and a first motor 233 is installed on the connecting shell 2 for driving the blocking plate 231 to rotate in the connecting shell 2.

[0049] During use, the first motor 233 is used to rotate the blocking plate 231 in the connecting shell 2 so that the blocking plate 231 fits against the mounting shell 11 , and the rubber pad 232 fits against the mounting shell 11 to seal it, thereby sealing the end of the mounting shell 11 .

[0050] In this embodiment, the fire detection component 5 includes: two partitions 51, and the two partitions 51 are fixedly installed in two mounting grooves 321 respectively. The first industrial camera 52 and the electric flamethrower 53 are installed in the mounting groove 321 located away from the first flow sensor 13 of the fire-blocking element 12. The first industrial camera 52 and the electric flamethrower 53 are respectively located on both sides of the partition 51. The second industrial camera 54 is installed in the other mounting groove 321. The second industrial camera 54 is located on one side of the partition 51, and an automatic fire extinguisher 55 is provided on the other side of the partition 51.

[0051] When testing the fire-retardant performance of the flame arrester body 1, the two detection tubes 32 are slid to the second state in the mounting hole 31 by the two electric push rods 4, and the mounting grooves 321 of the two detection tubes 32 are displaced into the mounting shell 11, so that the electric flame spray gun 53, the first industrial camera 52, the second industrial camera 54, and the automatic fire extinguisher 55 are all located in the mounting shell 11. The electric flame spray gun 53 is controlled to spray fire to the fire-retardant element 12. By comparing the feedback images of the first industrial camera 52 and the second industrial camera 54, the fire-retardant performance of the fire-retardant element 12 can be tested; when the feedback image of the second industrial camera 54 shows flames, the flame passes through the fire-retardant element 12 and enters the mounting shell 11 where the second industrial camera 54 is located, and the automatic fire extinguisher 55 senses the flame and automatically starts to extinguish the fire.

[0052] In this embodiment, a vent pipe 33 connected to the mounting hole 31 is installed on the top of the mounting block 3, wherein the vent pipe 33 located on the side of the fire-blocking element 12 away from the first flow sensor 13 is externally connected to an air pump, and a cavity 322 is provided in the detection tube 32 and on the side of the mounting groove 321 close to the electric push rod 4, an air inlet 323 is provided on the top of the detection tube 32, and an exhaust port 324 is provided on the side wall, and the air inlet 323 and the exhaust port 324 are both connected to the cavity 322. When the detection tube 32 slides in the mounting hole 31 through the electric push rod 4, it also has a third state; the third state: the air inlet 323 is connected to the vent pipe 33, and the exhaust port 324 is located in the mounting shell 11; when the detection tube 32 is in the first state and the second state, the detection tube 32 blocks the vent pipe 33.

[0053] During the flame arrester performance test of the flame arrester body 1 , the air circulation inside the flame arrester body 1 can be accelerated to better fit the flame arrester body 1 in the environment when transporting hydrogen, making the flame arrester performance test result of the flame arrester element 12 more accurate.

[0054] In this embodiment, the side wall of the connecting shell 2 is provided with a connecting hole 21 connected to its interior, and the two connecting holes 21 are connected by a connecting pipe 22. The blocking mechanism 23 has two states: the first state: the blocking plate 231 is rotated in the connecting shell 2 by the first motor 233, so that the blocking plate 231 blocks the connecting hole 21; the second state: the blocking plate 231 is rotated in the connecting shell 2 by the first motor 233, so that the blocking plate 231 blocks the mounting shell 11.

[0055] The first motor 233 is used to make the sealing plate 231 fit with the mounting shell 11, and the rubber pad 232 fits with the mounting shell 11 to seal it. At this time, the sealing mechanism 23 is in the second state. The first motor 233 is used to make the sealing plate 231 fit with the connecting hole 21, and the rubber pad 232 fits with the connecting hole 21 to seal it. At this time, the sealing mechanism 23 is in the first state. Through the design of the connecting pipe 22, the sealing plate 231 fits with the mounting shell 11. When the mounting shell 11 is sealed, hydrogen can flow into the other connecting shell 2 through the connecting pipe 22, thereby not affecting the normal transportation of hydrogen.

[0056] Example 3

[0057] like Figures 1-9 As shown, based on the above embodiment, this embodiment further provides the following content:

[0058] In this embodiment, an overpressure detection mechanism 6 is installed on the mounting shell 11 located away from the first flow sensor 13 of the fire-blocking element 12, which is used to perform overpressure detection on the inside of the mounting shell 11; the overpressure detection mechanism 6 includes a connecting pipe 64 fixedly installed on the top of the mounting shell 11, the connecting pipe 64 is connected to the inside of the mounting shell 11, and an electromagnetic valve 61, a one-way valve 62, and a second flow sensor 63 are installed on the connecting pipe 64; the one-way valve 62 is located above the solenoid valve 61, and the second flow sensor 63 is fixedly installed in the connecting pipe 64 and above the one-way valve 62.

[0059] During the flame arrester performance test of the flame arrester body 1, when the air pump is controlled to inflate the vent pipe 33, the solenoid valve 61 is controlled to open, and the gas enters the cavity 322 of the detection tube 32 connected thereto through the vent pipe 33, and after entering the mounting shell 11, if the fire arrester element 12 is blocked, the gas cannot completely pass through the fire arrester element 12 to flow into the other mounting shell 11, so that the gas is compressed in the mounting shell 11 on the side of the fire arrester element 12 away from the first flow sensor 13, and can be discharged through the connecting pipe 64. After the connecting pipe 64 passes through the solenoid valve 61, a force is applied to the one-way valve 62, so that the one-way valve 62 is opened, and the gas is discharged through the connecting pipe 64. The second flow sensor 63 can detect that there is air circulation in the connecting pipe 64, and it can be known that the fire arrester element 12 is blocked.

[0060] In this embodiment, a third flow sensor 3221 and a fourth flow sensor 3222 are respectively installed on the two detection tubes 32 and located in the cavity 322 . The third flow sensor 3221 is installed on the detection tube 32 on the side of the fire-blocking element 12 away from the first flow sensor 13 .

[0061] Through the cooperation of the second flow sensor 63 , the fourth flow sensor 3222 , and the third flow sensor 3221 , it is possible to detect whether the flame arrester element 12 is clogged or whether the flame arrester body 1 itself is leaking.

[0062] In this embodiment, an inspection port 36 is provided at the bottom of the mounting block 3, and the inspection port 36 is blocked by the detection tube 32. When the detection tube 32 slides in the mounting hole 31 through the electric push rod 4 to form a first state, the mounting groove 321 is located directly above the inspection port 36; when the detection tube 32 slides in the mounting hole 31 through the electric push rod 4 to form a second state, the exhaust port 324 is located directly above the inspection port 36; the mounting block 3 is provided with a mounting port 37 in communication with the mounting hole 31 at one end away from the mounting shell 11, and a rotating ring 34 is connected to the bearing in the mounting port 37. The electric push rod 4 is fixedly connected to the rotating ring 34, and a driving mechanism 35 connected to the rotating ring 34 is installed on the mounting block 3; the driving mechanism 35 includes a second motor 351 fixedly mounted on the mounting block 3, the output shaft of the second motor 351 is coaxially fixed with a driving gear 352, and the rotating ring 34 is coaxially fixed with a driven gear 353 meshing with the driving gear 352. In this embodiment, a background control system and a display device are also provided. The background control system is communicatively connected to the display device, and the first industrial camera 52, the second industrial camera 54, the electric flamethrower 53, the first motor 233, the electric push rod 4, the first flow sensor 13, the third flow sensor 3221, the fourth flow sensor 3222, the second flow sensor 63, the second motor 351, and the solenoid valve 61 are all communicatively connected to the background control system.

[0063] When in use, the second motor 351 is controlled to be turned on, and the output shaft of the second motor 351 rotates to drive the driving gear 352 to rotate, thereby driving the rotating ring 34 to rotate through the driven gear 353, and thereby driving the electric push rod 4 to rotate through the rotating ring 34, so that the detection tube 32 rotates in the mounting hole 31.

[0064] Through the design of the inspection port 36, when in use, the installation groove 321 or the exhaust port 324 can be connected to the inspection port 36 through the cooperation of the electric push rod 4 and the drive mechanism 35, thereby facilitating the disassembly and replacement of the electric flamethrower 53, the first industrial camera 52, the second industrial camera 54, the automatic fire extinguisher 55, the third flow sensor 3221, and the fourth flow sensor 3222.

[0065] The working principle and use process of the present invention:

[0066] For hydrogen transportation:

[0067] The connecting shell 2 located on the side of the fire-blocking element 12 away from the first flow sensor 13 is connected to the hydrogen delivery end. The two first motors 233 are used to make the two blocking plates 231 respectively fit with the connecting holes 21, and the rubber pads 232 fit with the connecting holes 21 to seal them. The electric push rod 4 is used to make the detection tube 32 slide to the first state in the mounting hole 31. The hydrogen is quantitatively transported, and the hydrogen enters the mounting shell 11 near the hydrogen delivery end through the connecting shell 2, and then passes through the fire-blocking element 12 to flow into the mounting shell 11 where the first flow sensor 13 is installed. The first flow sensor 13 monitors the hydrogen delivery flow in real time. When the hydrogen flow monitored by the first flow sensor 13 is less than the hydrogen delivery amount, it means that there is a problem with the hydrogen delivery.

[0068] Test the flame arrester body 1 for its flame arresting performance:

[0069] The two first motors 233 are used to make the two blocking plates 231 respectively fit with the mounting shell 11, and the rubber pads 232 fit with the mounting shell 11 to seal it. At this time, the two detection tubes 32 are slid to the second state in the mounting holes 31 by the two electric push rods 4, and the mounting grooves 321 of the two detection tubes 32 are displaced into the mounting shell 11, so that the electric flamethrower 53, the first industrial camera 52, the second industrial camera 54, and the automatic fire extinguisher 55 are all located in the mounting shell 11. The electric flamethrower 53 is controlled to spray fire at the fire-blocking element 12, and the first industrial camera 52 captures the flame image and feeds it back to the display device through the background control system, and the second industrial camera 54 captures the other side of the fire-blocking element 12 and feeds it back to the display device through the background control system. By comparing the feedback images of the first industrial camera 52 and the second industrial camera 54, the fire-proof performance of the fire-blocking element 12 can be detected. When the first industrial camera 52 feeds back the image, When there is flame and the second industrial camera 54 feeds back an image showing no flame, the performance of the fire-blocking element 12 is normal. When the second industrial camera 54 feeds back an image showing flame, the performance of the fire-blocking element 12 is normal, thereby understanding whether the fire-blocking performance of the fire-blocking element 12 is normal, and ensuring that the flame arrester body 1 can smoothly block the fire when a fire occurs. When the second industrial camera 54 feeds back an image showing flame, the flame passes through the fire-blocking element 12 and enters the mounting shell 11 where the second industrial camera 54 is located, the automatic fire extinguisher 55 senses the flame and automatically starts to extinguish the fire. Moreover, when the blocking plate 231 blocks the mounting shell 11, the connecting shell 2 is connected to the connecting pipe 22 through the connecting hole 21, and hydrogen enters the connecting shell 2 near the hydrogen delivery end and is delivered to the other through the connecting pipe 22, thereby not affecting the normal delivery of hydrogen.

[0070] During the flame arrester performance test of the flame arrester body 1:

[0071] The two detection tubes 32 are slid to the third state in the two mounting holes 31 by the two electric push rods 4. The two air inlets 323 are connected to the two vent pipes 33. The two exhaust ports 324 are respectively located in the two mounting shells 11. The air pump is controlled to inflate the vent pipes 33. The gas enters the cavity 322 of the detection tube 32 connected thereto through the vent pipe 33, and then flows into the mounting shell 11, flows to the other mounting shell 11 through the flame arrester element 12, and is discharged through the cavity 322 of the other detection tube 32 and the vent pipe 33, thereby accelerating the air circulation inside the flame arrester body 1, making it more suitable for the environment of the flame arrester body 1 when transporting hydrogen. The flame arrester element 12 has a more accurate flame arrester performance test result. Through the design of the overpressure detection mechanism 6, when the air pump is used to inflate the vent pipe 33, the solenoid valve 61 is controlled to open, and the blockage of the connecting pipe 64 is cancelled. At this time, the one-way valve 62 blocks the connecting pipe 64. When the air pump is used to inflate the vent pipe 33, the air inside the flame arrester body 1 circulates. If the flame arrester element 12 is blocked, the gas enters the cavity 322 of the detection tube 32 connected thereto through the vent pipe 33, and after entering the mounting shell 11, the gas cannot completely pass through the fire arrester element 12 to flow into the other mounting shell 11, thereby preventing the fire arrester element 12 from being away from the first flow sensor 1. 3 is installed in the shell 11 on one side, so that it can be discharged through the connecting pipe 64. After the connecting pipe 64 passes through the solenoid valve 61, a force is applied to the one-way valve 62, so that the one-way valve 62 is opened, thereby discharging through the connecting pipe 64. The second flow sensor 63 can detect that there is air circulation in the connecting pipe 64, and it can be known that there is a blockage in the flame arrester element 12; and, through the design of the third flow sensor 3221 and the fourth flow sensor 3222, when air circulates in the two cavities 322, the third flow sensor 3221 and the fourth flow sensor 3222 monitor the flow rate of air circulation. When the air pump is controlled to flow to the ventilation pipe 3 When the air is inflated inside, if the third flow sensor 3221 and the fourth flow sensor 3222 all detect values, the sum of the values ​​measured by the second flow sensor 63 and the fourth flow sensor 3222 is compared with the value measured by the third flow sensor 3221. If the sum of the values ​​measured by the second flow sensor 63 and the fourth flow sensor 3222 is the same as the value measured by the third flow sensor 3221, it means that the flame arrester element 12 is blocked. If the sum of the values ​​measured by the second flow sensor 63 and the fourth flow sensor 3222 is less than the value measured by the third flow sensor 3221, it means that there is a leakage in the flame arrester body 1 itself.

[0072] Through the cooperation of the electric push rod 4 and the two second motors 351, the mounting grooves 321 or the exhaust ports 324 on the two detection tubes 32 can be connected to the inspection ports 36 at the bottom of the two mounting blocks 3, thereby facilitating the disassembly and replacement of the electric flamethrower 53, the first industrial camera 52, the second industrial camera 54, the automatic fire extinguisher 55, the third flow sensor 3221, and the fourth flow sensor 3222.

[0073] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0074] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flame arrester with real-time detection of detonation and deflagration resistance under hydrogen, characterized by: The flame arrester comprises a flame arrester body, which comprises two mounting shells and a flame arrester element; the two mounting shells are fixed and connected by multiple screws; the flame arrester element is located in the two mounting shells, and when the two mounting shells are fixedly connected, the flame arrester element is fixed; A connecting shell connected to the two mounting shells is fixedly mounted on one end of the two mounting shells away from the fire-blocking element; a blocking mechanism acting on the mounting shells is installed in the connecting shells for blocking the mounting shells; A first flow sensor is fixedly mounted on the top wall of one of the mounting shells, a detection hole is provided on the side wall of the mounting shell and on the side opposite to the connecting shell and the fire-blocking element, a mounting block is fixed on the mounting shell and located at the detection hole, a mounting hole connected to the detection hole is provided in the mounting block, a detection tube that fits the inner wall thereof is slidably mounted in the mounting hole, an electric push rod for driving the detection tube to slide is mounted on the mounting block, a mounting groove is provided on the side wall of the detection tube at one end away from the electric push rod, a fire detection assembly is installed in the mounting groove, which is used to detect the fire-blocking performance of the fire-blocking element; The detection tube slides in the mounting hole through the electric push rod to form two states; First state: the detection tube and the fire detection assembly are both located in the installation hole, and the detection hole is blocked; Second state: the detection tube is located in the installation hole and the fire detection component is located in the installation shell; The blocking mechanism includes a blocking plate hingedly mounted in the connecting shell, a rubber pad fixedly mounted on the side wall of the blocking plate, and a first motor mounted on the connecting shell for driving the blocking plate to rotate in the connecting shell; The fire detection component includes: There are two partitions, each of which is fixedly mounted in two mounting grooves. A first industrial camera and an electric flamethrower are mounted in the mounting groove located away from the first flow sensor of the fire-blocking element. The first industrial camera and the electric flamethrower are located on both sides of the partition, respectively. A second industrial camera is mounted in the other mounting groove. The second industrial camera is located on one side of the partition. An automatic fire extinguisher is provided on the other side of the partition. A vent pipe connected to the mounting hole is installed on the top of the mounting block, a cavity is opened in the detection tube and located on the side of the mounting groove close to the electric push rod, an air inlet is opened on the top of the detection tube and an exhaust port is opened on the side wall, and the air inlet and exhaust port are both connected to the cavity. When the detection tube slides in the mounting hole through the electric push rod, it also has a third state; The third state: the air inlet is connected to the vent pipe, and the exhaust port is located in the installation shell; when the detection tube is in the first state or the second state, the detection tube blocks the vent pipe.

2. The flame arrester with real-time detection of detonation and deflagration resistance under hydrogen according to claim 1, characterized in that: The side wall of the connecting shell is provided with a communicating hole connected to the interior thereof, the two communicating holes are connected via a communicating pipe, and the blocking mechanism has two states; First state: the blocking plate is rotated in the connecting shell by the first motor so that the blocking plate blocks the communicating hole; Second state: the blocking plate is rotated in the connecting shell by the first motor, so that the blocking plate blocks the mounting shell.

3. The flame arrester with real-time detection of detonation and deflagration resistance under hydrogen according to claim 2, characterized in that: An overpressure detection mechanism is installed on the installation shell of the fire-blocking element away from the first flow sensor, and is used to perform overpressure detection on the interior of the installation shell.

4. The flame arrester with real-time detection of detonation and deflagration resistance under hydrogen according to claim 3, characterized in that: The overpressure detection mechanism includes a connecting pipe fixedly mounted on the top of the mounting shell, the connecting pipe is connected to the interior of the mounting shell, and a solenoid valve, a one-way valve, and a second flow sensor are installed on the connecting pipe; The one-way valve is located above the solenoid valve, and the second flow sensor is fixedly installed in the connecting pipe and located above the one-way valve.

5. The flame arrester with real-time detection of detonation and deflagration resistance under hydrogen according to claim 4, characterized in that: A third flow sensor and a fourth flow sensor are respectively installed on the two detection tubes and located in the cavity. The third flow sensor is installed on the detection tube on the side of the fire-blocking element away from the first flow sensor.

6. The flame arrester with real-time detection of detonation and deflagration resistance under hydrogen according to claim 5, characterized in that: An inspection port is provided at the bottom of the mounting block, and the inspection port is blocked by the detection tube. When the detection tube slides in the mounting hole through the electric push rod to form a first state, the mounting groove is located directly above the inspection port; when the detection tube slides in the mounting hole through the electric push rod to form a second state, the exhaust port is located directly above the inspection port. The mounting block is provided with a mounting opening connected to the mounting hole at one end away from the mounting shell. A bearing in the mounting opening is connected to a rotating ring. The electric push rod is fixedly connected to the rotating ring. A driving mechanism connected to the rotating ring is installed on the mounting block.

7. The flame arrester with real-time detection of detonation and deflagration resistance under hydrogen according to claim 6, characterized in that: The driving mechanism includes a second motor fixedly mounted on the mounting block, the output shaft of the second motor is coaxially fixedly connected to a driving gear, and the rotating ring is coaxially fixedly connected to a driven gear meshing with the driving gear.

Images