A hydrogen leakage detector

Abstract

The application relates to the technical field of safety detectors, in particular to a hydrogen leakage detector. The detector comprises a box body; a plurality of partitions are arranged in the box body, the plurality of partitions divide an inner cavity of the box body into a plurality of cavities, a cylinder is arranged in each cavity, a hydrogen detection adhesive tape is sleeved on the cylinder, an air inlet hole is formed in the bottom wall of each cavity, a first electromagnetic valve is arranged at the air inlet hole, an air outlet hole is formed in the top wall of each cavity, and a second electromagnetic valve is arranged at the air outlet hole. The hydrogen leakage detector can detect weak hydrogen leakage, can detect hydrogen leakage in time periods, is convenient for checking the time of hydrogen leakage, and is favorable for checking the position of hydrogen leakage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety detector, in particular to a hydrogen leakage detector. BACKGROUND

[0002] Industrial production is the cornerstone of social development, and hydrogen is produced in many industrial production. Hydrogen is light in specific gravity, and its molecular movement and diffusion speed are fast. Compared with other gases, hydrogen is more prone to leakage, and it is colorless and odorless, which is not easy to be detected by people. Therefore, the detection of hydrogen leakage is particularly important in industrial production. When the concentration of hydrogen leakage is low, and the diffusion speed of hydrogen is fast, the current hydrogen leakage detector cannot detect weak hydrogen leakage in time, which leads to the inability to handle weak hydrogen leakage in time and brings safety hazards. In addition, the current hydrogen leakage detector cannot detect hydrogen leakage by time period, which is not convenient for checking the time of hydrogen leakage and is not conducive to checking the location of hydrogen leakage. SUMMARY

[0003] The purpose of the present application is to provide a hydrogen leakage detector, which can detect weak hydrogen leakage, and can detect hydrogen leakage by time period, which is convenient for checking the time of hydrogen leakage, and thus is conducive to checking the location of hydrogen leakage.

[0004] The present application provides a hydrogen leakage detector, comprising: a box body; a plurality of partitions are arranged in the box body, and the plurality of partitions divide the inner cavity of the box body into a plurality of cavities; a cylinder is arranged in each cavity; a hydrogen detection adhesive tape is sleeved on the cylinder; an air inlet hole is formed in the bottom wall of the cavity; a first electromagnetic valve is installed at the air inlet hole; an air outlet hole is formed in the top wall of the cavity; and a second electromagnetic valve is installed at the air outlet hole.

[0005] Preferably, the cylinder movably penetrates the bottom wall of the cavity, an annular plate is fixed on the cylinder, the bottom wall of the annular plate is in contact with the bottom wall of the cavity, a through hole is formed in the top wall of the cavity, and the top end of the cylinder and the hydrogen detection adhesive tape can penetrate the through hole when moving upward.

[0006] Preferably, two closed units are arranged on the top wall of the cavity and are symmetrically arranged about the axis of the through hole.

[0007] Preferably, each closed unit comprises a closed plate, a spring and a fixed plate, the fixed plate is connected to the top wall of the box body, the two ends of the spring are respectively connected to the closed plate and the fixed plate, a recess is formed in the bottom wall of the closed plate, the top wall of the recess is inclined downward as a whole from the inside to the outside, a through hole is formed in the top wall of the recess, the inner side wall of the through hole is in the same plane as the inner side wall of the recess, and the inner side walls of the closed plates of the two closed units are in contact to close the through hole.

[0008] Preferably, two driving columns are connected to the annular plate, the two driving columns pass through the top wall of the cavity and enter the two grooves respectively, the top end of the driving column is in contact with the top wall of the groove, and the driving column can drive the closing plate to move outward when moving upward, and the driving column can pass through the through hole.

[0009] Preferably, the base, the connecting column and the sliding plate are further included, two ends of the connecting column are connected with the outer wall of the box body and the base respectively, and the sliding plate is in sliding connection with the connecting column.

[0010] Preferably, a sliding groove is formed in the connecting column, a sliding block is in sliding connection in the sliding groove, and the sliding plate is detachably connected with the sliding block.

[0011] Preferably, a bottom column is connected to the bottom wall of the cylinder, and the bottom end of the bottom column is in contact with the top wall of the sliding plate.

[0012] Preferably, a blind hole is formed in the top wall of the cylinder, an illuminating lamp is arranged in the blind hole, the top end of the illuminating lamp is located above the hydrogen detection tape, a plurality of lamp holders are arranged on the sliding plate, the lamp holders correspond to the illuminating lamps one by one, and the illuminating lamp is fixed on the lamp holder.

[0013] Preferably, the single-chip microcomputer and the battery are further included, the single-chip microcomputer is connected with the first electromagnetic valve, the second electromagnetic valve and the illuminating lamp, can control the timing opening and closing of the first electromagnetic valve, the second electromagnetic valve and the illuminating lamp, and the battery is arranged on the sliding plate and can supply power for the first electromagnetic valve, the second electromagnetic valve, the illuminating lamp and the single-chip microcomputer.

[0014] Beneficial effects:

[0015] The technical scheme of the present application sets the hydrogen detection tape in the cavity of the box body, hydrogen can continuously enter the cavity through the gas inlet hole on the cavity and react with the hydrogen detection tape, and the amount of hydrogen entering can be displayed through the color change of the hydrogen detection tape, so that even if the amount of hydrogen leakage is small, the device can also find the leakage of hydrogen, solving the problem that the current hydrogen detector cannot detect low-concentration hydrogen leakage, leading to untimely maintenance and safety hazards; in addition, a plurality of independent cavities are arranged in the box body, the gas inlet hole of the corresponding cavity can be opened according to different time periods through the electromagnetic valve, the hydrogen leakage can be detected in time periods, the time of hydrogen leakage is convenient to investigate, and thus the position of hydrogen leakage is convenient to investigate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0017] Figure 1 Structure diagram of hydrogen leakage detector of the present application;

[0018] Legend: 1-box, 2-dividing plate, 3-cavity, 4-air inlet hole, 5-air outlet hole, 6-cylinder, 7-hydrogen detection tape, 8-ring plate, 9-through hole, 10-closed plate, 11-spring, 12-fixing plate, 13-groove, 14-driving column, 15-through hole, 16-base, 17-connecting column, 18-sliding plate, 19-illumination lamp. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described below in conjunction with the embodiments, obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0021] In addition, the terms "first", "second", etc. are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] As Figure 1 The embodiment provides a hydrogen leakage detector, which comprises a box body 1; a plurality of partitions 2 are arranged in the box body 1, the plurality of partitions 2 divide an inner cavity of the box body 1 into a plurality of cavities 3, a cylinder 6 is arranged in each cavity 3, a hydrogen detection adhesive tape is sleeved on the cylinder 6, an air inlet hole 4 is formed in a bottom wall of each cavity 3, a first electromagnetic valve is arranged at the air inlet hole 4, an air outlet hole 5 is formed in a top wall of each cavity 3, and a second electromagnetic valve is arranged at the air outlet hole 5. By arranging the hydrogen detection adhesive tape in the cavities 3 of the box body 1, hydrogen can continuously enter the cavities 3 through the air inlet holes 4 on the cavities 3 and react with the hydrogen detection adhesive tape, and the amount of hydrogen entering can be displayed through the color change of the hydrogen detection adhesive tape, so that even when the amount of hydrogen leakage is small, the hydrogen leakage can be found, and the problem that the current hydrogen detector cannot detect low-concentration hydrogen leakage, leading to untimely maintenance and safety hazards is solved. In addition, a plurality of independent cavities 3 are arranged in the box body 1, the air inlet holes 4 of the corresponding cavities 3 can be opened according to different time periods through electromagnetic valves, hydrogen leakage can be detected in time periods, and the time of hydrogen leakage can be conveniently investigated, so that the position of hydrogen leakage can be conveniently investigated.

[0023] The number of cavities 3 can be set according to actual use requirements, for example: four, six, eight or twelve, etc. In the embodiment, the number of cavities 3 is six, and each four hours is a time period, one day is divided into six time periods, six time periods correspond to six cavities 3, according to different time periods, the opening and closing of the first electromagnetic valve and the second electromagnetic valve in different cavities 3, for example, 0-4 o'clock, control the opening of the first electromagnetic valve and the second electromagnetic valve in the first cavity 3, and the closing of the first electromagnetic valve and the second electromagnetic valve in the remaining cavities 3, the gas enters from the gas inlet hole 4 in the first cavity 3, and the gas outlet hole 5 discharges, the second time period is 4-8 o'clock, the first electromagnetic valve and the second electromagnetic valve in the second cavity 3 are opened, and the first electromagnetic valve and the second electromagnetic valve in the remaining cavities 3 are closed, and the subsequent is the same, until the time detection of one day is completed. The hydrogen detection tape in different cavities 3 shows the hydrogen leakage in different time periods. For example: a factory building has many devices, and multiple devices are divided into multiple groups for alternate operation, and part of the cavities 3 detect hydrogen, while the other cavities 3 do not detect hydrogen, then the time period of the cavity 3 detecting hydrogen can be used to judge that the device running in the time period has a leakage. Therefore, when there is only one hydrogen leakage detector in a factory building, the time period of the cavity 3 detecting hydrogen can be used to judge which running time period and which running device has a hydrogen leakage, which greatly saves the equipment investment cost.

[0024] Preferably, the hydrogen detection tape is a ring-shaped hydrogen detection tape, that is, a cylindrical shape, which can better cover the cylinder 6, increase the contact area of the hydrogen detection tape 7 with hydrogen, and better detect weak hydrogen leakage.

[0025] Preferably, the box 1 is made of transparent material, which is convenient for observing the color change of the hydrogen detection tape 7 at any time.

[0026] Preferably, the detector can be placed at any position in the factory building when in use, and is preferably placed on the top of the factory building, because hydrogen is lighter in mass and moves upward, and is placed in a high place to better detect hydrogen.

[0027] In the embodiment, the cylinder 6 movably penetrates the bottom wall of the cavity 3, the ring-shaped plate 8 is fixed on the cylinder 6, the bottom wall of the ring-shaped plate 8 is in contact with the bottom wall of the cavity 3, the top wall of the cavity 3 is provided with a through hole 9, and the top end of the cylinder 6 and the hydrogen detection tape 7 can penetrate through the through hole 9 when moving upward. After the detector completes one working detection, the hydrogen detection tape 7 needs to be replaced, and the through hole 9 can facilitate the replacement of the hydrogen detection tape 7.

[0028] The outer top wall of the cavity 3 is provided with two closure units, which are symmetrically arranged about the axis of the through hole 9. When the hydrogen detection tape 7 needs to be replaced, the closure units can close the through hole 9, thereby avoiding the pollution of impurities in the air to the cavity 3.

[0029] The inner and outer directions of the components in the closure unit are taken as the inside between the two closure units.

[0030] Preferably, each closure unit includes a closure plate 10, a spring 11, and a fixed plate 12 connected to the outer top wall of the box 1. The two ends of the spring 11 are connected to the closure plate 10 and the fixed plate 12, respectively. The bottom wall of the closure plate 10 is provided with a groove 13, the top wall of which is inclined downward as a whole from the inside to the outside. The top wall of the groove 13 is provided with a through hole 15, the inner side wall of which is in the same plane as the inner side wall of the groove 13. The inner side walls of the closure plates 10 of the two closure units are in contact, thereby closing the through hole 9. The annular plate 8 is connected to two drive columns 14, which pass through the top wall of the cavity 3 and enter the two grooves 13, respectively. The top end of the drive column 14 is in contact with the top wall of the groove 13. When the drive column 14 moves upward, it can drive the closure plate 10 to move outward, and the drive column 14 can pass through the through hole 15.

[0031] In order to better control the volume of the entire detection instrument, the space of the cavity 3 cannot be too large, otherwise it is not convenient to carry and place the equipment. Since the space in the cavity 3 is small, it is troublesome and inconvenient to operate to replace the annular hydrogen detection tape 77 by inserting the hand through the through hole 9 into the cavity 3. In this embodiment, the cooperation of the cylinder 6, the annular plate 8, the through hole 9, and the closure unit is used. In the initial state, the bottom end of the cylinder 6 is located below the box 1, the bottom wall of the annular plate 8 is in contact with the bottom wall of the cavity 3, and the hydrogen detection tape 7 is located in the cavity 3. When replacing the annular hydrogen detection tape 77, the cylinder 6 is pushed upward, the cylinder 6 moves upward to drive the annular plate 8 to move upward, the annular plate 8 moves upward to drive the drive column 14 to move upward, the drive column 14 moves upward to abut against the top wall of the groove 13, the closure plate 10 is driven to move outward, until the two closure plates 10 completely open the through hole 9, and then the drive column 14 continues to move upward to pass through the through hole 15. At this time, the drive column 14 limits the closure plate 10, the cylinder 6 continues to move upward, the hydrogen detection tape 7 and the top end of the cylinder 6 pass through the through hole 9, and then the hydrogen detection tape 7 is replaced from above the box 1. The entire process only needs to push the cylinder 6 upward, which is simple and convenient to operate.

[0032] In this embodiment, it also includes a base 16, a connecting column 17, and a sliding plate 18. The two ends of the connecting column 17 are connected to the outer wall of the box 1 and the base 16, respectively. The sliding plate 18 is slidingly connected to the connecting column 17. The base 16 can be used to better support the box 1.

[0033] In the embodiment, a sliding groove is formed on the connecting column 17, a sliding block is slidably connected in the sliding groove, the sliding plate 18 is connected with the sliding block, the bottom wall of the cylinder 6 is connected with a bottom column, and the bottom end of the bottom column is in contact with the top wall of the sliding plate 18. In the initial state, the sliding block is located at the bottom of the sliding groove. When it is necessary to replace the annular hydrogen detection tape 77, the sliding plate 18 only needs to be pushed upward, so that all the cylinders 6 are driven to move upward, and the replacement of all the annular hydrogen detection tapes 77 is completed at one time, thereby further simplifying the operation procedure and improving the operation efficiency.

[0034] In the embodiment, a blind hole is formed on the top wall of the cylinder 6, and the illumination lamp 19 is arranged in the blind hole. The top end of the illumination lamp 19 is located above the hydrogen detection tape 7. A plurality of lamp holders are arranged on the sliding plate 18, the lamp holders correspond to the illumination lamps 19 one by one, and the illumination lamp 19 is fixed on the lamp holder. Preferably, the cylinder 6 is made of transparent material. At night, the illumination lamp 19 is turned on, and the color change of the hydrogen detection tape 7 in the cavity 3 can be better observed.

[0035] The illumination lamp 19 is arranged in the blind hole. In this way, the illumination lamp 19 is placed in the cavity 3 without increasing the volume occupied by the cavity 3, so that the volume of the cavity 3 can be further reduced, and the volume of the entire detection instrument can be further reduced. In the embodiment, preferably, the sliding plate 18 and the sliding block are detachably connected. When the illumination lamp 19 is damaged, the sliding plate 18 and the sliding block can be separated, then the sliding plate 18 is moved to make the illumination lamp 19 separate from the blind hole, and the maintenance and replacement of the illumination lamp 19 are realized.

[0036] In the embodiment, the single-chip microcomputer and the battery are further included. The single-chip microcomputer is connected with the first electromagnetic valve, the second electromagnetic valve and the illumination lamp 19, and can control the timing opening and closing of the first electromagnetic valve, the second electromagnetic valve and the illumination lamp 19. The battery is arranged on the sliding plate 18 and can supply power to the first electromagnetic valve, the second electromagnetic valve, the illumination lamp 19 and the single-chip microcomputer. Preferably, the illumination lamp 19 is not automatically turned off after being turned on. In this way, the color change of the hydrogen detection tape 7 can be well observed in any environment.

[0037] In summary, the hydrogen leakage detection instrument of the embodiment can detect the leakage of hydrogen gas. The hydrogen gas detection tape is arranged in the cavity of the box body. The hydrogen gas can continuously enter the cavity through the gas inlet hole on the cavity and react with the hydrogen gas detection tape. The amount of hydrogen gas entering the cavity can be displayed through the color change of the hydrogen gas detection tape. Therefore, even if the amount of hydrogen gas leakage is small, the device can also detect the leakage of hydrogen gas. The problem that the current hydrogen detector cannot detect low-concentration hydrogen leakage, resulting in delayed maintenance and safety hazards is solved. In addition, a plurality of independent cavities are arranged in the box body. The gas inlet holes of the cavities can be opened according to different time periods through the electromagnetic valves. The hydrogen leakage can be detected in different time periods, the time of hydrogen leakage can be conveniently investigated, and the position of hydrogen leakage can be conveniently investigated.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hydrogen leak detector, comprising: Include: Box (1), the box (1) is provided with a plurality of partitions (2), a plurality of partitions (2) divide the box (1) into a plurality of cavities (3), the cavity (3) is provided with a cylinder (6), the cylinder (6) is provided with a hydrogen detection tape (7), the bottom wall of the cavity (3) is provided with an air inlet hole (4), the first electromagnetic valve is installed at the air inlet hole (4), the top wall of the cavity (3) is provided with an air outlet hole (5), the second electromagnetic valve is installed at the air outlet hole (5); The cylinder (6) is movably penetrated through the bottom wall of the cavity (3), the cylinder (6) is fixed with an annular plate (8), the bottom wall of the annular plate (8) is in contact with the bottom wall of the cavity (3), the top wall of the cavity (3) is provided with a through hole (9), the top end of the cylinder (6) and the hydrogen detection tape (7) can pass through the through hole (9) when moving upward; The top wall of the cavity (3) is provided with two closed units, the two closed units are symmetrically arranged about the axis of the through hole (9); Each of the closed units comprises a closed plate (10), a spring (11) and a fixed plate (12), the fixed plate (12) is connected to the top wall of the box (1), the two ends of the spring (11) are respectively connected to the closed plate (10) and the fixed plate (12), the bottom wall of the closed plate (10) is provided with a groove (13), the top wall of the groove (13) is inclined downward as a whole from the inside to the outside, the top wall of the groove (13) is provided with a through hole (15), the inner side wall of the through hole (15) is in the same plane as the inner side wall of the groove (13), the inner side walls of the closed plates (10) of the two closed units are in contact and can close the through hole (9); The annular plate (8) is connected with two drive columns (14), the two drive columns (14) pass through the top wall of the cavity (3) and enter the two grooves (13) respectively, the top end of the drive column (14) is in contact with the top wall of the groove (13), the drive column (14) can drive the closed plate (10) to move outward when moving upward, and the drive column (14) can pass through the through hole (15).

2. The hydrogen leak detector of claim 1, wherein, Also include: Base (16), connecting column (17) and sliding plate (18), the two ends of the connecting column (17) are respectively connected with the outer wall of the box (1) and the base (16), and the sliding plate (18) is slidably connected with the connecting column (17).

3. The hydrogen leak detector of claim 2, wherein, The connecting column (17) is provided with a sliding groove, and a sliding block is slidably connected in the sliding groove, and the sliding plate (18) is detachably connected with the sliding block.

4. The hydrogen leak detector of claim 2, wherein, The bottom wall of the cylinder (6) is connected with a bottom column, and the bottom end of the bottom column is in contact with the top wall of the sliding plate (18).

5. The hydrogen leak detector of claim 2, wherein, The top wall of the cylinder (6) is provided with a blind hole, the blind hole is provided with an illuminating lamp (19), the top end of the illuminating lamp (19) is located above the hydrogen detection tape (7), the sliding plate (18) is provided with a plurality of lamp holders, the lamp holders correspond to the illuminating lamps (19) one by one, and the illuminating lamps (19) are fixed on the lamp holders.

6. The hydrogen leak detector of claim 5, wherein, Also include: Single-chip microcomputer and battery; The single-chip microcomputer is connected with the first electromagnetic valve, the second electromagnetic valve and the illuminating lamp, can control the timing opening and closing of the first electromagnetic valve, the second electromagnetic valve and the illuminating lamp, the battery is arranged on the sliding plate (18), can power the first electromagnetic valve, the second electromagnetic valve, the illuminating lamp and the single-chip microcomputer.

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