Pressure relief alarm device for hydrogen tank and alarm method of pressure relief alarm device

Abstract

The invention relates to the technical field of hydrogen storage tank pressure relief alarm, and discloses a pressure relief alarm device for a hydrogen tank and an alarm method thereof.The pressure relief alarm device comprises the hydrogen storage tank, a plurality of gas injection pipes are communicated with the periphery of the top of the hydrogen storage tank, an annular adsorption plate is fixedly connected to the bottom of the inner wall of the hydrogen storage tank, and the pressure relief alarm device further comprises a pressure relief alarm mechanism; the pressure relief alarm mechanism comprises a cylindrical shell fixedly connected to the center of the top of the hydrogen storage tank, a powdery alloy material is placed in the hydrogen storage tank, the powdery alloy material is attached to the outer portion of an annular adsorption plate, hydrogen is injected into the hydrogen storage tank through a gas injection pipe, and when the hydrogen storage tank is filled with hydrogen, the annular adsorption plate is closed; hydrogen extrudes a pressure relief plate, so that the pressure relief plate moves upwards, the pressure relief plate drives a vertical column to move upwards, the vertical column drives a flexible annular plate to move upwards, the flexible annular plate slides in a circular groove, the internal area of a semicircular shell is pressurized, and a pressure sensor senses the increased pressure, so that an alarm is given.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage tank pressure relief alarm, and in particular to a hydrogen tank pressure relief alarm device and an alarm method thereof. Background Art

[0002] A pressure relief alarm device for a hydrogen tank. A solid hydrogen storage tank is usually used to store hydrogen. It contains an adsorbent or a chemical reactant. The adsorbent or the chemical reactant is usually a powdered alloy material that can adsorb or chemically combine hydrogen to achieve hydrogen storage. In order to ensure the safety of the solid hydrogen storage tank during operation, a pressure relief alarm device is often required.

[0003] However, the existing pressure relief alarm device usually uses a pressure sensor for alarm. During the process of hydrogen injection, the hydrogen will transmit pressure to the pressure sensor when it is full. During the pressure transmission process, the pressure sensor will be subjected to a small impact. After working for a long time, the small parts inside the pressure sensor may be damaged, and powdered alloy materials may also enter the interior of the pressure sensor, affecting the alarm work of the pressure sensor. Summary of the invention

[0004] The object of the present invention is to provide a pressure relief alarm device for a hydrogen tank and an alarm method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention relates to a pressure relief alarm device for a hydrogen tank and an alarm method thereof, comprising a hydrogen storage tank, wherein the top of the hydrogen storage tank is respectively connected with a plurality of gas injection pipes, an annular adsorption plate is fixedly connected to the bottom of the inner wall of the hydrogen storage tank, and also comprises a pressure relief alarm mechanism, wherein the pressure relief alarm mechanism comprises a cylindrical shell fixedly connected to the center of the top of the hydrogen storage tank, an arc plate is fixedly connected to the top of the cylindrical shell, a circular groove is provided at the bottom end of the inner wall of the arc plate, a semicircular shell is fixedly connected to the top of the arc plate, a pressure sensor is connected to the top of the semicircular shell, and a pressure relief component is arranged on the inner wall of the cylindrical shell.

[0007] Furthermore, the pressure relief assembly includes a connecting bucket connected to the bottom of the inner wall of the cylindrical shell, the top of the inner cavity of the connecting bucket is slidably connected to a pressure relief plate, the top of the pressure relief plate is fixedly connected to a vertical column, the inner wall of the vertical column is sleeved and rotatably connected with a threaded sleeve, the inner wall of the threaded sleeve is sleeved and threadedly connected with a screw rod, and the top outer wall of the screw rod is sleeved and fixedly connected with a rotating four-rod plate.

[0008] Furthermore, the top of the rotating four-rod plate is rotatably connected to the top of the inner wall of the semicircular shell, the top of the vertical column is fixedly connected to a return spring, one end of the return spring is fixedly connected to the top of the inner wall of the semicircular shell, and a flexible annular plate is sleeved and fixedly connected to the outer wall of the top of the vertical column, and one end of the flexible annular plate away from the vertical column is slidably connected to the inner wall of the circular groove.

[0009] Furthermore, an alarm component is provided on the outer wall of the flexible annular plate, and the alarm component includes a plurality of connecting rods fixedly connected around the outer wall of the flexible annular plate, an end of the connecting rod away from the flexible annular plate is fixedly connected with an arc sleeve, the arc sleeve is arranged inside the circular groove, and sliders are respectively slidably connected to the inner walls of the arc sleeve at both ends, an arc spring is fixedly connected between the two sliders, and the arc spring is arranged inside the arc sleeve.

[0010] Furthermore, one end of the slider away from the arc spring is fixedly connected to the arc rod, and the side of the outer wall of the arc sleeve away from the connecting rod is connected to a connecting tube, one end of the connecting tube passes through the arc plate and extends to the outside of the arc plate, and the end of the connecting tube away from the arc sleeve is connected to a whistle shell, and a bell is slidably connected to the bottom of the inner wall of the whistle shell.

[0011] Furthermore, a stabilizing component is provided on one side of the whistle shell, and the stabilizing component includes a fixing rod penetrating and fixedly connected to one side of the whistle shell, and the outer walls at both ends of the fixing rod are respectively sleeved and rotatably connected with a rotating flexible plate, and the end of the rotating flexible plate away from the fixing rod is fixedly connected to a sliding shell, the bottom of the sliding shell is slidably connected to the outer wall of the semicircular shell, and one side of the inner wall of the sliding shell is fixedly connected to a compression spring.

[0012] Furthermore, one end of the extrusion spring is fixedly connected to a moving plate, the outer wall of the moving plate is sleeved and slidably connected to the inner wall of the sliding shell, the end of the moving plate away from the extrusion spring is fixedly connected to a rubber ball rod, one end of the top of the sliding shell is connected to a bent pipe, one end of the bent pipe passes through the sliding shell and extends to the outside of the sliding shell, one end of the bent pipe is connected to a semicircular capsule block, and one side of the semicircular capsule block is fixedly connected to the side wall of the sliding shell.

[0013] Furthermore, a filtering flexible net is sleeved and fixedly connected to the outer wall of the bottom end of the screw rod, and an annular sleeve is sleeved and fixedly connected to the outer wall of the filtering flexible net, and the outer wall of the annular sleeve is sleeved and rotatably connected to the top of the inner wall of the connecting bucket, and a plurality of inclined shells are fixedly connected to the bottom and four sides of the annular sleeve respectively, and an inclined bar is slidably connected to one side of the inner wall of the inclined shell, and a cleaning bar is rotatably connected to one side of the inclined bar, and the two ends of one side of the inclined bar are respectively penetrated and fixedly connected to the first sliding rod, and the two ends of the first sliding rod both penetrate the inclined shell and extend to the outside of the inclined shell, and a plurality of reciprocating springs are respectively fixedly connected to the two sides of the inclined bar close to the first sliding rod, and one end of the reciprocating spring is fixedly connected to one side of the inner wall of the inclined shell, and the two ends of the first sliding rod are respectively fixedly connected to connecting plates.

[0014] Furthermore, a second sliding rod is fixedly connected to a side of the connecting plate close to the first sliding rod, and an end of the second sliding rod away from the connecting plate is fixedly connected to an inclined plate, an outer wall of the inclined plate is sleeved and slidably connected with an inclined cylinder, one side of the inclined cylinder is fixedly connected to one side of the inclined shell, the top of the inclined cylinder is connected with an inclined tube, the inner wall of the inclined tube is sleeved and slidably connected with a lifting block, the top of the lifting block is fixedly connected with an inclined rod, and an end of the inclined rod away from the lifting block is fixedly connected with an impact ball, one side of the inner wall of the inclined cylinder is connected with jet pipes respectively, and one end of the jet pipe passes through the inclined cylinder and extends to the outside of the inclined shell.

[0015] A pressure relief alarm device for a hydrogen tank and an alarm method thereof, the alarm method in the pressure relief alarm device for a hydrogen tank comprising the following steps:

[0016] Step 1: Put the powdered alloy material into the interior of the hydrogen storage tank, the powdered alloy material is attached to the outside of the annular adsorption plate, and hydrogen is injected into the interior of the hydrogen storage tank through the gas injection pipe. When the interior of the hydrogen storage tank is filled with hydrogen, the hydrogen squeezes the pressure relief plate to move the pressure relief plate upward, and the pressure relief plate drives the vertical column to move upward, and the vertical column drives the flexible annular plate to move upward. The flexible annular plate slides inside the circular groove, and the internal area of ​​the semicircular shell is pressurized. At the same time, during the sliding process of the flexible annular plate, the connecting rod is driven to move, and the connecting rod drives the arc sleeve to move. When the arc sleeve moves to one end of the circular groove, it can prevent the flexible annular plate from continuing to slide, thereby enhancing the effect of the flexible annular plate in preventing the leakage of hydrogen inside the hydrogen storage tank. When the arc sleeve moves, the two sliders approach each other inside the arc sleeve. When the sliders approach each other, the gas in the middle area inside the arc sleeve enters the interior of the whistle shell through the connecting pipe, and the airflow causes the bell inside the whistle shell to move;

[0017] Step 2: During the movement of the whistle shell, the whistle shell drives the fixed rod to move, the fixed rod drives the rotating flexible plate to move, the rotating flexible plate drives the sliding shell to move, because of the arc-shaped outer shell of the semicircular shell, the sliding shell moves along the arc-shaped trajectory of the semicircular shell, the sliding shell drives the moving plate to move, the moving plate drives the rubber ball rod to move, the rubber ball rod squeezes the pressure sensor during the movement, and is subjected to the reaction force of the pressure sensor, the moving plate moves toward the inside of the sliding shell, the air pressure inside the sliding shell enters the inside of the semicircular capsule block through the bent pipe, causing the semicircular capsule block to expand, and the pressure sensor is reinforced during the expansion of the semicircular capsule block;

[0018] Step 3: When the vertical column reciprocates up and down, the vertical column drives the threaded sleeve to move, and the threaded setting of the screw rod and the threaded sleeve causes the screw rod to rotate, and the screw rod drives the filter flexible net to rotate. The setting of the filter flexible net prevents hydrogen from being injected into the interior of the hydrogen storage tank, so that the powdered alloy material enters the interior of the cylindrical shell through the hydrogen storage tank, and the filter flexible net drives the annular sleeve to rotate, the annular sleeve drives the inclined shell to rotate, the inclined shell drives the first sliding rod to rotate, the first sliding rod drives the inclined bar to rotate, and the inclined bar drives the cleaning bar to rotate;

[0019] Step 4: When the cleaning strip comes into contact with the connecting bucket, the friction force of the connecting bucket and the elastic deformation of the reciprocating spring cause the cleaning strip to drive the inclined strip to move back and forth on the inner wall of the inclined shell, the inclined shell drives the connecting plate to move back and forth, the connecting plate drives the second sliding rod to move back and forth, the second sliding rod drives the inclined plate to move back and forth, air pressure is generated during the movement of the inclined plate, the air pressure enters the interior of the inclined tube through the inclined cylinder, the air pressure causes the lifting block inside the inclined tube to move up and down, the lifting block drives the inclined rod to move up and down, the inclined rod drives the impact ball to move up and down, the impact ball comes into contact with the filtering flexible net during the movement, and the air pressure generated during the movement of the inclined plate enters the interior of the inclined shell through the jet pipe.

[0020] The present invention has the following beneficial effects:

[0021] (1) In the present invention, a powdered alloy material is placed inside a hydrogen storage tank, the powdered alloy material is attached to the outside of an annular adsorption plate, and hydrogen is injected into the inside of the hydrogen storage tank through a gas injection pipe. When the inside of the hydrogen storage tank is filled with hydrogen, the hydrogen presses the pressure relief plate, causing the pressure relief plate to move upward, and the pressure relief plate drives the vertical column to move upward, and the vertical column drives the flexible annular plate to move upward. The flexible annular plate slides inside the circular groove, and the internal area of ​​the semicircular shell is pressurized. The pressure sensor senses the increased pressure, thereby giving an alarm, thereby enhancing the device's ability to prevent pressure release. At the same time, during the sliding process of the flexible annular plate, the connecting rod is driven to move, and the connecting rod drives the arc sleeve to move. When the arc sleeve moves to one end of the circular groove, it can prevent the flexible annular plate from continuing to slide, thereby enhancing the effect of the flexible annular plate in preventing the leakage of hydrogen inside the hydrogen storage tank. When the arc sleeve moves, the two sliders approach each other inside the arc sleeve. When the sliders approach each other, the gas in the middle area of ​​the arc sleeve enters the interior of the whistle shell through the connecting pipe. The airflow causes the bell inside the whistle shell to move, thereby making noise, further enhancing the alarm effect of the device.

[0022] (2) In the present invention, during the movement of the whistle shell, the whistle shell drives the fixed rod to move, the fixed rod drives the rotating flexible plate to move, and the rotating flexible plate drives the sliding shell to move. Because of the arc-shaped outer shell of the semicircular shell, the sliding shell moves along the arc-shaped trajectory of the semicircular shell, the sliding shell drives the moving plate to move, and the moving plate drives the rubber ball rod to move. During the movement of the rubber ball rod, the pressure sensor is squeezed to prevent vibration when the pressure sensor alarms, affecting the small parts inside the pressure sensor, thereby enhancing the working life of the pressure sensor. Under the reaction force of the pressure sensor, the moving plate moves toward the inside of the sliding shell, and the air pressure inside the sliding shell enters the inside of the semicircular capsule block through the bent pipe, causing the semicircular capsule block to expand. During the expansion of the semicircular capsule block, the pressure sensor is reinforced, further preventing the pressure sensor from shaking, thereby indirectly enhancing the alarm effect of the device.

[0023] (3) In the present invention, when the vertical column moves up and down, the vertical column drives the threaded sleeve to move, and the threaded setting of the screw rod and the threaded sleeve causes the screw rod to rotate, and the screw rod drives the flexible filtering net to rotate. The setting of the flexible filtering net prevents hydrogen from being injected into the interior of the hydrogen storage tank, so that the powdered alloy material passes through the hydrogen storage tank and enters the interior of the cylindrical shell, affecting the alarm operation of the device, thereby improving the alarm effect. The flexible filtering net drives the annular sleeve to rotate, the annular sleeve drives the inclined shell to rotate, the inclined shell drives the first sliding rod to rotate, the first sliding rod drives the inclined bar to rotate, and the inclined bar drives the cleaning bar to rotate, thereby cleaning the inner wall of the connecting bucket, preventing the interior of the connecting bucket from being doped with the adhesion of the powdered alloy material, which affects the effect of converting gaseous hydrogen into solid hydrogen.

[0024] (4) According to the present invention, when the cleaning strip contacts the connecting bucket, the friction force of the connecting bucket and the elastic deformation of the reciprocating spring cause the cleaning strip to drive the inclined strip to reciprocate on the inner wall of the inclined shell, the inclined shell drives the connecting plate to reciprocate, the connecting plate drives the second sliding rod to reciprocate, the second sliding rod drives the inclined plate to reciprocate, and air pressure is generated during the movement of the inclined plate. The air pressure enters the interior of the inclined tube through the inclined cylinder, and the air pressure causes the lifting block inside the inclined tube to move up and down. The lifting block drives the inclined rod to move up and down, and the inclined rod drives the impact ball to move up and down. During the movement of the impact ball, it contacts the filtering flexible net, thereby preventing the powdered alloy material from being attached to the filter holes of the filtering flexible net, further enhancing the filtering effect of the filtering flexible net, and improving the conversion efficiency of hydrogen. Moreover, the air pressure generated during the movement of the inclined plate enters the interior of the inclined shell through the air injection pipe, and blows the cleaning strip during the rotation process, thereby preventing the powdered alloy material from being attached to the outer surface of the cleaning strip, thereby affecting the cleaning effect of the cleaning strip, and further enhancing the conversion efficiency of hydrogen.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall top view structure of the present invention;

[0028] Figure 2 It is a schematic diagram of a half-section structure of the whole part of the present invention;

[0029] Figure 3 It is a schematic diagram of a partial cross-sectional side structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the explosion side structure of the alarm assembly of the present invention;

[0031] Figure 5 This is a schematic diagram of the explosion part structure of the stabilizing assembly of the present invention;

[0032] Figure 6 It is a schematic diagram of a partially half-sectioned side structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the explosion structure of the cleaning component of the present invention;

[0034] Figure 8 For the present invention Figure 3 A magnified view of middle;

[0035] Fig. 9 For the present invention Figure 6 Enlarged view of middle B;

[0036] Fig.10 It is a schematic diagram of the flow chart of the alarm method of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] In the figure: 1, hydrogen storage tank; 2, gas injection pipe; 3, annular adsorption plate; 4, pressure relief alarm mechanism; 41, cylindrical shell; 42, arc plate; 43, circular groove; 44, semicircular shell; 45, pressure relief assembly; 46, alarm assembly; 47, stabilizing assembly; 48, cleaning assembly; 451, connecting bucket; 452, pressure relief plate; 453, vertical column; 454, threaded sleeve; 455, screw rod; 456, rotating four-rod plate; 457, reset spring; 458, flexible annular plate; 461, connecting rod; 462, arc sleeve; 463, slider; 464, arc rod; 465, arc spring; 466, connecting pipe; 467, whistle shell; 468 , bell; 471, fixed rod; 472, rotating flexible plate; 473, sliding shell; 474, extrusion spring; 475, moving plate; 476, rubber ball rod; 477, bent pipe; 478, semicircular capsule block; 481, filtering flexible net; 482, annular sleeve; 483, inclined shell; 484, inclined strip; 485, cleaning strip; 486, first sliding rod; 487, reciprocating spring; 488, connecting plate; 489, second sliding rod; 4810, inclined plate; 4811, inclined cylinder; 4812, inclined tube; 4813, lifting block; 4814, inclined rod; 4815, impact ball; 4816, jet pipe; 49, pressure sensor. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1, please refer to Figure 1-Figure 10 As shown, the present invention is a pressure relief alarm device for a hydrogen tank and an alarm method thereof, comprising a hydrogen storage tank 1, wherein the top and four sides of the hydrogen storage tank 1 are respectively connected with a plurality of gas injection pipes 2, and the bottom of the inner wall of the hydrogen storage tank 1 is fixedly connected with an annular adsorption plate 3, the purpose of which is to adsorb powdered alloy materials, and further comprising;

[0041] The pressure relief alarm mechanism 4 includes a cylindrical shell 41 fixedly connected to the top center of the hydrogen storage tank 1, an arc plate 42 is fixedly connected to the top of the cylindrical shell 41, a circular groove 43 is provided at the bottom end of the inner wall of the arc plate 42, a semicircular shell 44 is fixedly connected to the top of the arc plate 42, and a pressure sensor 49 is connected to the top of the semicircular shell 44. The purpose of this arrangement is to be able to alarm, and a pressure relief component 45 is provided on the inner wall of the cylindrical shell 41.

[0042] The pressure relief assembly 45 includes a connecting bucket 451 connected to the bottom of the inner wall of the cylindrical shell 41, the top of the inner cavity of the connecting bucket 451 is slidably connected to a pressure relief plate 452, the top of the pressure relief plate 452 is fixedly connected to a vertical column 453, the inner wall of the vertical column 453 is sleeved and rotatably connected to a threaded sleeve 454, the inner wall of the threaded sleeve 454 is sleeved and threadedly connected to a screw rod 455, the top outer wall of the screw rod 455 is sleeved and fixedly connected to a rotating four-rod plate 456, the purpose of this arrangement is to prevent the screw rod 455 from falling off.

[0043] The top end of the rotating four-rod plate 456 is rotatably connected to the top end of the inner wall of the semicircular shell 44, and the top of the vertical column 453 is fixedly connected to a return spring 457. The purpose of this arrangement is to reset. One end of the return spring 457 is fixedly connected to the top end of the inner wall of the semicircular shell 44. A flexible annular plate 458 is sleeved and fixedly connected to the outer wall of the top end of the vertical column 453. The purpose of this arrangement is to be able to perform elastic deformation. The end of the flexible annular plate 458 away from the vertical column 453 is slidably connected to the inner wall of the circular groove 43.

[0044] An alarm component 46 is provided on the outer wall of the flexible annular plate 458. The alarm component 46 includes a plurality of connecting rods 461 fixedly connected around the outer wall of the flexible annular plate 458. An end of the connecting rod 461 away from the flexible annular plate 458 is fixedly connected with an arc sleeve 462. The arc sleeve 462 is arranged inside the circular groove 43. Slide blocks 463 are respectively slidably connected to the inner walls of the arc sleeve 462 at both ends. An arc spring 465 is fixedly connected between the two slide blocks 463. The arc spring 465 is arranged inside the arc sleeve 462.

[0045] One end of the slider 463 away from the arc spring 465 is fixedly connected to the arc rod 464, and the outer wall side of the arc sleeve 462 away from the connecting rod 461 is connected to a connecting pipe 466. One end of the connecting pipe 466 passes through the arc plate 42 and extends to the outside of the arc plate 42. The end of the connecting pipe 466 away from the arc sleeve 462 is connected to a whistle shell 467, and the bottom of the inner wall of the whistle shell 467 is slidably connected to a bell 468. The purpose of this arrangement is to be able to generate noise.

[0046] Powdered alloy material is placed inside the hydrogen storage tank 1, and the powdered alloy material is attached to the outside of the annular adsorption plate 3, and hydrogen is injected into the hydrogen storage tank 1 through the gas injection pipe 2. When the interior of the hydrogen storage tank 1 is filled with hydrogen, the hydrogen squeezes the pressure relief plate 452, causing the pressure relief plate 452 to move upward, and the pressure relief plate 452 drives the vertical column 453 to move upward, and the vertical column 453 drives the flexible annular plate 458 to move upward, and the flexible annular plate 458 slides inside the circular groove 43, and the internal area of ​​the semicircular shell 44 is pressurized, and the pressure sensor 49 senses the increased pressure, thereby giving an alarm, thereby enhancing the effect of the device in preventing pressure relief. At the same time, the flexible annular plate 458 During the sliding process, the connecting rod 461 is driven to move, and the connecting rod 461 drives the arc sleeve 462 to move. When the arc sleeve 462 moves to one end of the circular groove 43, it can prevent the flexible annular plate 458 from continuing to slide, thereby enhancing the effect of the flexible annular plate 458 in preventing the leakage of hydrogen inside the hydrogen storage tank 1. When the arc sleeve 462 moves, the two sliders 463 approach each other inside the arc sleeve 462. When the sliders 463 approach each other, the gas in the middle area inside the arc sleeve 462 enters the interior of the whistle shell 467 through the connecting pipe 466. The airflow causes the bell 468 inside the whistle shell 467 to move, thereby making noise, further enhancing the alarm effect of the device.

[0047] In embodiment 2, a stabilizing component 47 is provided on one side of the whistle shell 467, and the stabilizing component 47 includes a fixing rod 471 that passes through and is fixedly connected to one side of the whistle shell 467, and the outer walls at both ends of the fixing rod 471 are respectively sleeved and rotatably connected with a rotating flexible plate 472, and the end of the rotating flexible plate 472 away from the fixing rod 471 is fixedly connected with a sliding shell 473, and the bottom of the sliding shell 473 is slidably connected to the outer wall of the semicircular shell 44, and one side of the inner wall of the sliding shell 473 is fixedly connected with an extrusion spring 474.

[0048] One end of the extrusion spring 474 is fixedly connected to a moving plate 475, and the outer wall of the moving plate 475 is sleeved and slidably connected to the inner wall of the sliding shell 473. The end of the moving plate 475 away from the extrusion spring 474 is fixedly connected to a rubber ball rod 476. The purpose of this arrangement is to have a rubber material to prevent excessive extrusion force on the pressure sensor 49 and cause damage. One end of the top of the sliding shell 473 is connected to a curved pipe 477, one end of the curved pipe 477 passes through the sliding shell 473 and extends to the outside of the sliding shell 473, and one end of the curved pipe 477 is connected to a semicircular capsule block 478, and one side of the semicircular capsule block 478 is fixedly connected to the side wall of the sliding shell 473.

[0049] The outer wall of the bottom end of the screw rod 455 is sleeved and fixedly connected with a filtering flexible net 481, the outer wall of the filtering flexible net 481 is sleeved and fixedly connected with an annular sleeve 482, the outer wall of the annular sleeve 482 is sleeved and rotatably connected to the top of the inner wall of the connecting bucket 451, and a plurality of inclined shells 483 are fixedly connected to the bottom of the annular sleeve 482. A slanted bar 484 is slidably connected to one side of the inner wall of the inclined shell 483, and a cleaning bar 485 is rotatably connected to one side of the inclined bar 484. The two ends of one side of the inclined bar 484 are respectively penetrated and fixedly connected with a first sliding rod 486, and both ends of the first sliding rod 486 penetrate the inclined shell 483 and extend to the outside of the inclined shell 483. A plurality of reciprocating springs 487 are respectively fixedly connected to both sides of the inclined bar 484 near the first sliding rod 486, and one end of the reciprocating spring 487 is fixedly connected to one side of the inner wall of the inclined shell 483, and the two ends of the first sliding rod 486 are respectively fixedly connected with a connecting plate 488.

[0050] A second sliding rod 489 is fixedly connected to one side of the connecting plate 488 close to the first sliding rod 486, and an end of the second sliding rod 489 away from the connecting plate 488 is fixedly connected to an inclined plate 4810, an outer wall of the inclined plate 4810 is sleeved and slidably connected with an inclined cylinder 4811, one side of the inclined cylinder 4811 is fixedly connected to one side of the inclined shell 483, the top of the inclined cylinder 4811 is connected with an inclined tube 4812, the inner wall of the inclined tube 4812 is sleeved and slidably connected with a lifting block 4813, the top of the lifting block 4813 is fixedly connected with an inclined rod 4814, and one end of the inclined rod 4814 away from the lifting block 4813 is fixedly connected with an impact ball 4815, and one side of the inner wall of the inclined cylinder 4811 is connected with jet pipes 4816 respectively, and one end of the jet pipe 4816 penetrates the inclined cylinder 4811 and extends to the outside of the inclined shell 483.

[0051] A pressure relief alarm device for a hydrogen tank and an alarm method thereof, the alarm method in the pressure relief alarm device for a hydrogen tank comprising the following steps:

[0052] Step 1: Put the powdered alloy material into the hydrogen storage tank 1, the powdered alloy material adheres to the outside of the annular adsorption plate 3, and injects hydrogen into the hydrogen storage tank 1 through the gas injection pipe 2. When the interior of the hydrogen storage tank 1 is filled with hydrogen, the hydrogen squeezes the pressure relief plate 452, causing the pressure relief plate 452 to move upward, and the pressure relief plate 452 drives the vertical column 453 to move upward, and the vertical column 453 drives the flexible annular plate 458 to move upward. The flexible annular plate 458 slides inside the circular groove 43, and the internal area of ​​the semicircular shell 44 is pressurized. At the same time, during the sliding process of the flexible annular plate 458, The connecting rod 461 is driven to move, and the connecting rod 461 drives the arc sleeve 462 to move. When the arc sleeve 462 moves to one end of the circular groove 43, it can prevent the flexible annular plate 458 from continuing to slide, thereby enhancing the effect of the flexible annular plate 458 in preventing the hydrogen inside the hydrogen storage tank 1 from leaking out. When the arc sleeve 462 moves, the two sliders 463 approach each other inside the arc sleeve 462. When the sliders 463 approach each other, the gas in the middle area inside the arc sleeve 462 enters the interior of the whistle shell 467 through the connecting pipe 466, and the airflow causes the bell 468 inside the whistle shell 467 to move.

[0053] Step 2: During the movement of the whistle shell 467, the whistle shell 467 drives the fixed rod 471 to move, the fixed rod 471 drives the rotating flexible plate 472 to move, and the rotating flexible plate 472 drives the sliding shell 473 to move. Because of the arc-shaped outer shell of the semicircular shell 44, the sliding shell 473 moves along the arc-shaped trajectory of the semicircular shell 44, and the sliding shell 473 drives the moving plate 475 to move, and the moving plate 475 drives the rubber ball rod 476 to move. During the movement of the rubber ball rod 476, the pressure sensor 49 is squeezed, and the moving plate 475 moves toward the inside of the sliding shell 473 due to the reaction force of the pressure sensor 49. The air pressure inside the sliding shell 473 enters the inside of the semicircular capsule block 478 through the curved pipe 477, so that the semicircular capsule block 478 expands. During the expansion of the semicircular capsule block 478, the pressure sensor 49 is reinforced.

[0054] Step 3: When the vertical column 453 reciprocates up and down, the vertical column 453 drives the threaded sleeve 454 to move, and the threaded setting of the screw rod 455 and the threaded sleeve 454 causes the screw rod 455 to rotate, and the screw rod 455 drives the filter flexible net 481 to rotate. The setting of the filter flexible net 481 prevents hydrogen from being injected into the interior of the hydrogen storage tank 1, so that the powdered alloy material enters the interior of the cylindrical shell 41 through the hydrogen storage tank 1, and the filter flexible net 481 drives the annular sleeve 482 to rotate, the annular sleeve 482 drives the inclined shell 483 to rotate, the inclined shell 483 drives the first sliding rod 486 to rotate, the first sliding rod 486 drives the inclined bar 484 to rotate, and the inclined bar 484 drives the cleaning bar 485 to rotate;

[0055] Step 4: When the cleaning bar 485 contacts the connecting bucket 451, the cleaning bar 485 drives the inclined bar 484 to reciprocate on the inner wall of the inclined shell 483 due to the friction of the connecting bucket 451 and the elastic deformation of the reciprocating spring 487, and the inclined shell 483 drives the connecting plate 488 to reciprocate, and the connecting plate 488 drives the second sliding rod 489 to reciprocate, and the second sliding rod 489 drives the inclined plate 4810 to reciprocate, and the inclined plate 4810 generates a Air pressure, the air pressure enters the interior of the inclined tube 4812 through the inclined cylinder 4811, the air pressure causes the lifting block 4813 inside the inclined tube 4812 to move up and down, the lifting block 4813 drives the inclined rod 4814 to move up and down, the inclined rod 4814 drives the impact ball 4815 to move up and down, the impact ball 4815 comes into contact with the filtering flexible net 481 during the movement, and the air pressure generated during the movement of the inclined plate 4810 enters the interior of the inclined shell 483 through the jet pipe 4816.

[0056] During use, during the movement of the whistle shell 467, the whistle shell 467 drives the fixed rod 471 to move, the fixed rod 471 drives the rotating flexible plate 472 to move, and the rotating flexible plate 472 drives the sliding shell 473 to move. Because of the arc-shaped shell of the semicircular shell 44, the sliding shell 473 moves along the arc-shaped trajectory of the semicircular shell 44, and the sliding shell 473 drives the moving plate 475 to move, and the moving plate 475 drives the rubber ball rod 476 to move. During the movement of the rubber ball rod 476, the pressure sensor 49 is squeezed to prevent the pressure sensor from When 49 alarms, vibration occurs, which affects the small parts inside the pressure sensor 49, thereby increasing the service life of the pressure sensor 49. Under the reaction force of the pressure sensor 49, the movable plate 475 moves toward the inside of the sliding shell 473, and the air pressure inside the sliding shell 473 enters the interior of the semicircular capsule block 478 through the bent pipe 477, causing the semicircular capsule block 478 to expand. During the expansion process of the semicircular capsule block 478, the pressure sensor 49 is reinforced, which further prevents the pressure sensor 49 from shaking, thereby indirectly enhancing the alarm effect of the device.

[0057] When the vertical column 453 reciprocates up and down, the vertical column 453 drives the threaded sleeve 454 to move, and the threaded setting of the screw rod 455 and the threaded sleeve 454 causes the screw rod 455 to rotate, and the screw rod 455 drives the filtering flexible net 481 to rotate. Through the setting of the filtering flexible net 481, when hydrogen is prevented from being injected into the interior of the hydrogen storage tank 1, the powdered alloy material passes through the hydrogen storage tank 1 and enters the interior of the cylindrical shell 41, affecting the alarm work of the device, and the side effect of the alarm is improved, and the filtering flexible net 481 drives the annular sleeve 482 to rotate, the annular sleeve 482 drives the inclined shell 483 to rotate, the inclined shell 483 drives the first sliding rod 486 to rotate, the first sliding rod 486 drives the inclined bar 484 to rotate, and the inclined bar 484 drives the cleaning bar 485 to rotate, thereby cleaning the inner wall of the connecting bucket 451 to prevent the interior of the connecting bucket 451 from being doped with the adhesion of the powdered alloy material, which affects the effect of converting gaseous hydrogen into solid hydrogen.

[0058] When the cleaning bar 485 contacts the connecting bucket 451, the friction force of the connecting bucket 451 and the elastic deformation of the reciprocating spring 487 cause the cleaning bar 485 to drive the inclined bar 484 to reciprocate on the inner wall of the inclined shell 483, the inclined shell 483 drives the connecting plate 488 to reciprocate, the connecting plate 488 drives the second sliding rod 489 to reciprocate, the second sliding rod 489 drives the inclined plate 4810 to reciprocate, and air pressure is generated during the movement of the inclined plate 4810. The air pressure enters the interior of the inclined tube 4812 through the inclined cylinder 4811, and the air pressure causes the lifting block 4813 inside the inclined tube 4812 to move up and down, and the lifting block 4813 drives the inclined rod 4814 The inclined plate 4810 moves up and down, and the inclined rod 4814 drives the impact ball 4815 to move up and down. The impact ball 4815 comes into contact with the filter flexible net 481 during the movement, thereby preventing the powdered alloy material from adhering to the filter holes of the filter flexible net 481, further enhancing the filtering effect of the filter flexible net 481, and improving the conversion efficiency of hydrogen. The air pressure generated during the movement of the inclined plate 4810 enters the interior of the inclined shell 483 through the air jet pipe 4816, and blows the cleaning strip 485 during the rotation, thereby preventing the powdered alloy material from adhering to the outer surface of the cleaning strip 485, affecting the cleaning effect of the cleaning strip 485, and further enhancing the conversion efficiency of hydrogen.

[0059] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pressure relief alarm device for a hydrogen tank, characterized in that: It comprises a hydrogen storage tank (1), wherein the top and the periphery of the hydrogen storage tank (1) are respectively connected to a plurality of gas injection pipes (2), the bottom of the inner wall of the hydrogen storage tank (1) is fixedly connected to an annular adsorption plate (3), and further comprises: A pressure relief alarm mechanism (4), the pressure relief alarm mechanism (4) comprising a cylindrical shell (41) fixedly connected to the center of the top of the hydrogen storage tank (1), the top of the cylindrical shell (41) being fixedly connected to an arc plate (42), the bottom end of the inner wall of the arc plate (42) being provided with a circular groove (43), the top of the arc plate (42) being fixedly connected to a semicircular shell (44), the top of the semicircular shell (44) being connected to a pressure sensor (49), and the inner wall of the cylindrical shell (41) being provided with a pressure relief assembly (45).

2. A pressure relief alarm device for a hydrogen tank according to claim 1, characterized in that: The pressure relief assembly (45) comprises a connecting bucket (451) connected to the bottom of the inner wall of the cylindrical shell (41); the top of the inner cavity of the connecting bucket (451) is slidably connected to a pressure relief plate (452); the top of the pressure relief plate (452) is fixedly connected to a vertical column (453); the inner wall of the vertical column (453) is sleeved with and rotatably connected to a threaded sleeve (454); the inner wall of the threaded sleeve (454) is sleeved with and threadably connected to a screw rod (455); the top outer wall of the screw rod (455) is sleeved with and fixedly connected to a rotating four-rod plate (456).

3. A pressure relief alarm device for a hydrogen tank according to claim 2, characterized in that: The top end of the rotating four-rod plate (456) is rotatably connected to the top end of the inner wall of the semicircular shell (44); the top of the vertical column (453) is fixedly connected to a return spring (457); one end of the return spring (457) is fixedly connected to the top end of the inner wall of the semicircular shell (44); a flexible annular plate (458) is sleeved and fixedly connected to the outer wall of the top end of the vertical column (453); one end of the flexible annular plate (458) away from the vertical column (453) is slidably connected to the inner wall of the circular groove (43).

4. A pressure relief alarm device for a hydrogen tank according to claim 3, characterized in that: The outer wall of the flexible annular plate (458) is provided with an alarm component (46), and the alarm component (46) includes a plurality of connecting rods (461) fixedly connected to the outer wall of the flexible annular plate (458) around the periphery, and the end of the connecting rod (461) away from the flexible annular plate (458) is fixedly connected with an arc sleeve (462), and the arc sleeve (462) is arranged inside the circular groove (43), and the inner wall of the arc sleeve (462) is slidably connected with sliders (463) at both ends, and an arc spring (465) is fixedly connected between the two sliders (463), and the arc spring (465) is arranged inside the arc sleeve (462).

5. A pressure relief alarm device for a hydrogen tank according to claim 4, characterized in that: The end of the slider (463) away from the arc spring (465) is fixedly connected to the arc rod (464), and the outer wall side of the arc sleeve (462) away from the connecting rod (461) is connected to a connecting pipe (466), one end of the connecting pipe (466) passes through the arc plate (42) and extends to the outside of the arc plate (42), and the end of the connecting pipe (466) away from the arc sleeve (462) is connected to a whistle shell (467), and the bottom of the inner wall of the whistle shell (467) is slidably connected to a bell (468).

6. A pressure relief alarm device for a hydrogen tank according to claim 5, characterized in that: A stabilizing component (47) is provided on one side of the whistle housing (467), and the stabilizing component (47) includes a fixing rod (471) penetrating and fixedly connected to one side of the whistle housing (467), and the outer walls at both ends of the fixing rod (471) are respectively sleeved and rotatably connected with a rotating flexible plate (472), and the end of the rotating flexible plate (472) away from the fixing rod (471) is fixedly connected with a sliding shell (473), and the bottom of the sliding shell (473) is slidably connected to the outer wall of the semicircular shell (44), and one side of the inner wall of the sliding shell (473) is fixedly connected with a compression spring (474).

7. A pressure relief alarm device for a hydrogen tank according to claim 6, characterized in that: One end of the extrusion spring (474) is fixedly connected to a moving plate (475), the outer wall of the moving plate (475) is sleeved and slidably connected to the inner wall of the sliding shell (473), one end of the moving plate (475) away from the extrusion spring (474) is fixedly connected to a rubber ball rod (476), one end of the top of the sliding shell (473) is connected to a curved pipe (477), one end of the curved pipe (477) passes through the sliding shell (473) and extends to the outside of the sliding shell (473), one end of the curved pipe (477) is connected to a semicircular capsule block (478), and one side of the semicircular capsule block (478) is fixedly connected to the side wall of the sliding shell (473).

8. A pressure relief alarm device for a hydrogen tank according to claim 7, characterized in that: The outer wall of the bottom end of the screw rod (455) is sleeved and fixedly connected with a filtering flexible net (481), the outer wall of the filtering flexible net (481) is sleeved and fixedly connected with an annular sleeve (482), the outer wall of the annular sleeve (482) is sleeved and rotatably connected to the top of the inner wall of the connecting bucket (451), and the bottom of the annular sleeve (482) is fixedly connected with a plurality of inclined shells (483) around each other, and one side of the inner wall of the inclined shell (483) is slidably connected with an inclined strip (484), and one side of the inclined strip (484) is rotatably connected with a cleaning strip (48 5), the two ends of one side of the inclined bar (484) are respectively penetrated and fixedly connected with a first sliding rod (486), both ends of the first sliding rod (486) are penetrated through the inclined shell (483) and extend to the outside of the inclined shell (483), the two sides of the inclined bar (484) close to the first sliding rod (486) are respectively fixedly connected with a plurality of reciprocating springs (487), one end of the reciprocating spring (487) is fixedly connected to one side of the inner wall of the inclined shell (483), and the two ends of the first sliding rod (486) are respectively fixedly connected with a connecting plate (488).

9. A pressure relief alarm device for a hydrogen tank according to claim 8, characterized in that: The connecting plate (488) is fixedly connected to a second sliding rod (489) on one side close to the first sliding rod (486), and the second sliding rod (489) is fixedly connected to an inclined plate (4810) on one end away from the connecting plate (488). An inclined cylinder (4811) is sleeved on the outer wall of the inclined plate (4810) and slidably connected thereto. One side of the inclined cylinder (4811) is fixedly connected to one side of the inclined shell (483), and the top of the inclined cylinder (4811) is connected to an inclined tube (4812). A lifting block (4813) is sleeved on the inner wall of the inclined tube (4812) and slidably connected thereto; a tilted rod (4814) is fixedly connected to the top of the lifting block (4813); an end of the tilted rod (4814) away from the lifting block (4813) is fixedly connected to an impact ball (4815); and jet pipes (4816) are respectively connected to one side of the inner wall of the inclined cylinder (4811) and one end of the jet pipe (4816) passes through the inclined cylinder (4811) and extends to the outside of the inclined shell (483).

10. According to any one of claims 1 to 9, a pressure relief alarm device for a hydrogen tank, the alarm method of the pressure relief alarm device for a solid-state hydrogen storage tank comprises the following steps, characterized in that: Step 1: Put the powdered alloy material into the hydrogen storage tank (1), the powdered alloy material adheres to the outside of the annular adsorption plate (3), and inject hydrogen into the hydrogen storage tank (1) through the gas injection pipe (2). When the interior of the hydrogen storage tank (1) is filled with hydrogen, the hydrogen presses the pressure relief plate (452), causing the pressure relief plate (452) to move upward, and the pressure relief plate (452) drives the vertical column (453) to move upward, and the vertical column (453) drives the flexible annular plate (458) to move upward, and the flexible annular plate (458) slides inside the circular groove (43), and the internal area of ​​the semicircular shell (44) is pressurized. At the same time, during the sliding process of the flexible annular plate (458), it drives The connecting rod (461) moves, and the connecting rod (461) drives the arc sleeve (462) to move. When the arc sleeve (462) moves to one end of the circular groove (43), the flexible annular plate (458) can be prevented from continuing to slide, thereby enhancing the effect of the flexible annular plate (458) in preventing hydrogen from leaking out of the hydrogen storage tank (1). When the arc sleeve (462) moves, the two sliders (463) approach each other inside the arc sleeve (462). When the sliders (463) approach each other, the gas in the middle area inside the arc sleeve (462) enters the inside of the whistle shell (467) through the connecting pipe (466), and the airflow causes the bell (468) inside the whistle shell (467) to move; Step 2: During the movement of the whistle shell (467), the whistle shell (467) drives the fixed rod (471) to move, the fixed rod (471) drives the rotating flexible plate (472) to move, the rotating flexible plate (472) drives the sliding shell (473) to move, because the semicircular shell (44) is an arc-shaped shell, the sliding shell (473) moves along the arc-shaped trajectory of the semicircular shell (44), the sliding shell (473) drives the moving plate (475) to move, and the moving plate (475) drives the rubber The ball rod (476) moves, and the rubber ball rod (476) squeezes the pressure sensor (49) during the movement, and is subjected to the reaction force of the pressure sensor (49), so that the moving plate (475) moves toward the inside of the sliding shell (473), and the air pressure inside the sliding shell (473) enters the inside of the semicircular capsule block (478) through the curved pipe (477), so that the semicircular capsule block (478) expands, and the pressure sensor (49) is reinforced during the expansion of the semicircular capsule block (478); Step 3: When the vertical column (453) moves up and down, the vertical column (453) drives the threaded sleeve (454) to move, and the threaded setting of the screw rod (455) and the threaded sleeve (454) causes the screw rod (455) to rotate, and the screw rod (455) drives the filter flexible net (481) to rotate. The setting of the filter flexible net (481) prevents hydrogen from being injected into the interior of the hydrogen storage tank (1), so that the powdered alloy material enters the interior of the cylindrical shell (41) through the hydrogen storage tank (1), and the filter flexible net (481) drives the annular sleeve (482) to rotate, the annular sleeve (482) drives the inclined shell (483) to rotate, the inclined shell (483) drives the first sliding rod (486) to rotate, the first sliding rod (486) drives the inclined bar (484) to rotate, and the inclined bar (484) drives the cleaning bar (485) to rotate; Step 4: When the cleaning strip (485) contacts the connecting bucket (451), the cleaning strip (485) drives the inclined strip (484) to reciprocate on the inner wall of the inclined shell (483) due to the friction force of the connecting bucket (451) and the elastic deformation of the reciprocating spring (487), and the inclined shell (483) drives the connecting plate (488) to reciprocate, and the connecting plate (488) drives the second sliding rod (489) to reciprocate, and the second sliding rod (489) drives the inclined plate (4810) to reciprocate, and the inclined plate (4810) generates a friction force during the movement of the inclined plate (4810). Air pressure is generated, and the air pressure enters the interior of the inclined tube (4812) through the inclined cylinder (4811). The air pressure causes the lifting block (4813) inside the inclined tube (4812) to move up and down. The lifting block (4813) drives the inclined rod (4814) to move up and down. The inclined rod (4814) drives the impact ball (4815) to move up and down. During the movement, the impact ball (4815) contacts the filtering flexible net (481). The air pressure generated during the movement of the inclined plate (4810) enters the interior of the inclined shell (483) through the air injection pipe (4816).

Images