Hydrogen purification device for preventing hydrogen embrittlement

Abstract

The application discloses a hydrogen purification device capable of preventing hydrogen embrittlement, characterized in that a protection shell is arranged at the middle of the upper portion of a workbench, a plurality of guide rails are arranged above the workbench, a moving platform is arranged above the workbench and movably connected to the workbench through the plurality of guide rails, a track is arranged transversely on the moving platform, a purification device is movably connected to the track, the purification device comprises a base movably connected to the track, a heating portion, a filtering portion and a sealing portion are sequentially arranged above the base, a moving mechanism capable of moving the base along the track is arranged at the right side of the moving platform, and a stretching mechanism capable of stretching the heating portion, the filtering portion and the sealing portion is arranged at the rear side of the base, compared with the prior art, the purification device can be alternately replaced for purification, hydrogen embrittlement caused by overloading of the purification device is prevented, the components in the purification device can be timely replaced, and the strength of the purification equipment is enhanced.

Description

Technical Field

[0001] This invention relates to the field of hydrogen purification technology, and in particular to a hydrogen purification apparatus for preventing hydrogen embrittlement. Background Technology

[0002] Hydrogen, as a renewable energy source, has many advantages, including being clean, having high energy density, and being versatile in its applications. In recent years, to reduce energy consumption and lower costs in chemical production, advanced methanol vapor reforming-pressure swing adsorption technology has been used to produce pure hydrogen gas, thus replacing the energy-intensive process of "electrolysis of water to produce hydrogen."

[0003] Methanol reforming for hydrogen production mainly refers to the reaction of methanol and water under high temperature and pressure to produce a mixture of hydrogen and carbon dioxide, which is then purified to obtain pure hydrogen. In the hydrogen purification process of methanol reforming, the mixed gas needs to be pressurized and passed through a palladium-silver alloy membrane to filter out carbon dioxide and obtain pure hydrogen.

[0004] To avoid hydrogen embrittlement in the hydrogen purification unit under high temperature and high pressure, the structure of the hydrogen purification unit needs to be modified to make it suitable for hydrogen purification in the methanol reforming hydrogen production process.

[0005] In view of this, it is indeed necessary to improve the hydrogen purification equipment to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a hydrogen purification device that prevents hydrogen embrittlement, which can solve at least one of the above-mentioned technical problems. The technical solution of this invention is as follows:

[0007] A hydrogen purification device for preventing hydrogen embrittlement, characterized in that: it includes a workbench, a protective shell is provided in the middle of the upper part of the workbench, multiple sets of guide rails are provided above the workbench, a moving platform is provided above the workbench, the moving platform is movably inserted into the workbench through the multiple sets of guide rails, a track is provided laterally on the moving platform, a purification device is movably inserted into the track, the purification device includes a base movably inserted into the track, a heating part, a filtering part and a sealing part are arranged sequentially above the base, a moving mechanism is provided on the right side of the moving platform to drive the base to move along the track, an extension mechanism is provided on the rear side of the base to extend the heating part, the filtering part and the sealing part, and a drive mechanism is provided on the left side of the workbench to drive the moving platform to move backward.

[0008] Furthermore, the heating unit includes a placement groove on the base, a sealing strip is installed in the placement groove, heating plates are symmetrically arranged in the sealing strip, and mica plates are provided on the upper and lower sides of the heating plates.

[0009] Further, the filtering part comprises a guide plate arranged above the sealing edge, a filter screen plate arranged above the guide plate, a guide groove arranged above the guide plate, and a plurality of guide blocks arranged in the guide groove.

[0010] Further, the sealing part comprises an upper sliding plate movably inserted above the inside of the protection shell, an upper seat movably inserted below the upper sliding plate, a plurality of sealing rings sequentially arranged below the upper seat, and a palladium-silver alloy film clamped between the sealing rings.

[0011] Further, the moving mechanism comprises a first motor fixed on the moving platform, a first screw rod fixed at the output end of the first motor, the first screw rod movably sleeved on the moving platform, a U-shaped clamping plate symmetrically arranged at the rear side of the base, a moving plate arranged at the rear side of the U-shaped clamping plate, the U-shaped clamping plate movably inserted on the moving plate, the moving plate transversely inserted on the moving platform, a first threaded sleeve fixed at the rear side of the moving plate, the first screw rod and the first threaded sleeve engaged, an air cylinder fixed on the moving plate, the output end of the air cylinder fixedly connected with the U-shaped clamping plate, and clamping blocks symmetrically fixed at the rear side of the base, the U-shaped clamping plate clamped on the clamping blocks.

[0012] Further, the stretching mechanism comprises guide columns fixed around the base, guide sleeves fixed around the upper seat, connecting sleeves fixed around the guide plate and the filter screen plate, the connecting sleeves movably sleeved on the guide columns, the connecting sleeves blocking the guide plate below, the connecting sleeves movably sleeved in the guide sleeves above, a second motor fixed at the rear side of the base, a second screw rod fixed at the output end of the second motor, and a second threaded sleeve fixed at the rear side of the upper seat, the second screw rod and the second threaded sleeve threadedly engaged.

[0013] Further, the driving mechanism comprises a rack arranged at the left side of the moving platform, a third motor fixed at the left side of the workbench, a spur gear fixed at the output end of the third motor, and the spur gear engaged with the rack.

[0014] Preferably, a through groove is arranged in the middle of the protection shell and the workbench, and a material conveying channel is arranged through the upper seat, the upper seat, the guide plate and the base.

[0015] In summary, the present application has the following advantages over the prior art:

[0016] The application provides a hydrogen purification device capable of preventing hydrogen embrittlement, which is used in the way that hydrogen to be purified is transported from a through slot on a protective shell to the purification device, and the hydrogen is purified by a filtering part and a heating part in sequence, and after the device is used for a period of time, the mobile platform is moved backward by a driving mechanism, and then the base is moved along the track by a moving mechanism, so that the purification device is transported to the left side of the workbench after leaving the protective shell, and another purification device is transported into the protective shell to work, thereby reducing the working time of the same equipment and the probability of hydrogen embrittlement, and after the purification device is moved to the left side of the workbench, the heating part, the filtering part and the sealing part are stretched by a stretching mechanism, and the user can replace the parts of the heating part, the filtering part and the sealing part, and when the purification device is closed, the heating part can continuously heat the purification device, so that each component of the purification device is heated to 180-200 DEG C, thereby driving hydrogen, and the filtering part and the heating part are arranged in a laminated structure, and the whole hydrogen purification device is arranged in a laminated structure, thereby enhancing the strength of the device as a whole, compared with the prior art, the purification device can be replaced alternately to purify, the purification device can be prevented from being overloaded to cause hydrogen embrittlement, and the parts in the purification device can be replaced in time, thereby enhancing the strength of the purification equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The application is intended to be a three-dimensional.

[0018] Fig. 2 The application is intended to be a three-dimensional.

[0019] Fig. 3 The application is intended to be a three-dimensional.

[0020] BRIEF DESCRIPTION OF DRAWINGS: 1, workbench; 2, protective shell 3, guide rail; 4, mobile platform; 5, track; 6, purification device; 61, base; 62, heating part; 63, filtering part; 64, sealing part; 100, moving mechanism; 200, stretching mechanism; 300, driving mechanism; 621, placing groove; 622, sealing edge; 623, heating plate; 624, mica plate; 631, flow guide plate; 632, filter screen; 633, flow guide groove; 634, flow guide block; 641, upper slide plate; 642, upper seat; 643, sealing ring; 645, palladium-silver alloy film; 101, first motor; 102, first screw; 103, threaded sleeve; 104, U-shaped clamping plate; 105, moving plate; 106, air cylinder; 107, clamping block; 201, guide column; 202, guide sleeve; 203, connecting sleeve; 204, second motor; 205, second screw; 206, second threaded sleeve; 301, third motor; 302, rack; 303, spur gear; 21, through slot; 22, material conveying channel. DETAILED DESCRIPTION

[0021] The application is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] As Figs. 1 to 3 shown in a kind of hydrogen purification device for preventing hydrogen embrittlement, it is characterized in that: including workbench 1, the middle part of the workbench 1 is equipped with protective shell 2, the protective shell 2 and the middle part of workbench 1 are equipped with through slot 21, the upper seat 642, flow guide plate 631 and base 61 are all equipped with material conveying channel 22, the upper side of the workbench 1 is equipped with multiple guide rails 3, the upper side of the workbench 1 is equipped with mobile platform 4, the mobile platform 4 is movably inserted on the workbench 1 through multiple guide rails 3, the mobile platform is equipped with track 5 transversely, the purification device 6 is movably inserted on the track 5, the purification device 6 includes base 61 movably inserted on the track 5, heating part 62, filter part 63 and sealing part 64 are sequentially arranged above the base 61, the right side of the mobile platform 4 is equipped with moving mechanism 100 capable of moving base 61 along track 5, the rear side of the base 61 is equipped with stretching mechanism 200 capable of stretching heating part 62, filter part 63 and sealing part 64, the left side of the workbench 1 is equipped with driving mechanism 300 capable of moving mobile platform 4 backward.

[0023] The above structure of a kind of hydrogen purification device for preventing hydrogen embrittlement, when using, the hydrogen gas waiting for purification from the through slot 21 on the protective shell 2 is sent to the purification device 6, at this time, the hydrogen gas is purified in turn through filter part 63 and heating part 62, after the device is used for a period of time, the mobile platform 4 can be moved backward first by driving mechanism 300, and then the base 64 is moved along the track 5 by the moving mechanism 100, so that the purification device 6 is sent to the left side of the workbench 1 after leaving the protective shell 2, another purification device 6 is simultaneously sent to the protective shell 2 for production work, which can reduce the working time of the same equipment, reduce the probability of hydrogen embrittlement, and the heating part 62, the filter part 62 and the sealing part 64 are stretched by the stretching mechanism 200 after the purification device 6 moves to the left side of the workbench 1, the user can replace the parts of the heating part 62, the filter part 63 and the sealing 64, and the purification device can be continuously heated by the heating part 62 when the purification device 4 is closed, so that each component of the purification device is heated to 180~200℃, thereby driving hydrogen, and the filter part 63 and the heating part 62 are arranged in a laminated structure, and the entire hydrogen purification device is arranged in a laminated structure, which can strengthen the overall strength of the device, compared with the prior art, the purification device can be alternately replaced for purification, the hydrogen embrittlement caused by overloading of the purification device can be prevented, the parts in the purification device can be replaced in time, and the strength of the purification equipment is strengthened.

[0024] As Fig. 2 and 3As shown in the drawings, in some embodiments of the present application, the heating part 62 comprises a placing groove 621 arranged on the base 61, a sealing edge 622 is arranged in the placing groove 621, heating plates 623 are symmetrically arranged in the sealing edge 622, mica plates 624 are arranged on the upper and lower sides of the heating plates 623, and the heating plates 623 are connected with power supply, so that the heating plates 623 heat the mica plates 624, the mica plates 624 heat hydrogen for processing, and the heat is conducted to other parts, and the sealing edge 622 prevents heat loss during heating.

[0025] As shown in the drawings, Fig. 2 and 3 As shown in the drawings, in some embodiments of the present application, the filtering part 63 comprises a flow guide plate 631 arranged above the sealing edge 622, a filter screen plate 632 arranged above the flow guide plate 631, a flow guide groove 633 arranged above the flow guide plate 631, and a plurality of flow guide blocks 634 arranged in the flow guide groove 633, hydrogen is purified through the filter screen plate 632, and the hydrogen is guided to the flow guide plate 631 through the flow guide groove 633, and then the hydrogen is discharged through the material conveying channel 22 after passing through the gaps between the flow guide blocks 634.

[0026] As shown in the drawings, Fig. 2 and 3 As shown in the drawings, in some embodiments of the present application, the sealing part 64 comprises an upper sliding plate 641 movably inserted into the upper part of the protection shell 2, an upper seat 642 movably inserted below the upper sliding plate 641, a plurality of sealing rings 643 sequentially arranged below the upper seat 642, and a palladium-silver alloy film 645 clamped between the sealing rings 643, hydrogen is conveyed to the palladium-silver alloy film 645 through the material conveying channel 22 of the upper seat 642 for purification, and the sealing rings 643 arranged in the interlayer prevent hydrogen from leaking out.

[0027] As shown in the drawings, Fig. 2 and 3As shown in the figure, in some embodiments of the present application, in order to achieve the effect of moving the base 61 along the track 5, the moving mechanism 100 comprises a first motor 101 fixed on the moving platform 4, a first screw rod 102 fixed at the output end of the first motor 101, the first screw rod 102 movably sleeved on the moving platform 4, a U-shaped clamping plate 104 symmetrically arranged at the rear side of the base 61, a moving plate 105 arranged at the rear side of the U-shaped clamping plate 104, the U-shaped clamping plate 104 movably inserted into the moving plate 105, the moving plate 105 transversely inserted into the moving platform 4, a first threaded sleeve 103 fixed at the rear side of the moving plate 105, the first screw rod 102 and the first threaded sleeve 103 being in engagement, a pneumatic cylinder 106 fixed on the moving plate 105, the output end of the pneumatic cylinder 106 being fixedly connected with the U-shaped clamping plate 104, and a clamping block 107 fixed symmetrically at the rear side of the base 61, the U-shaped clamping plate 104 being clamped on the clamping block 107.

[0028] When the hydrogen purification device for preventing hydrogen embrittlement is in operation, the first motor 101 is turned on by the power supply, so that the first motor 101 drives the first screw rod 102 to rotate, the first screw rod 102 is in threaded engagement with the first threaded sleeve 103 fixed at the rear side of the moving plate 105 when rotating, so that the moving plate 105 drives the pneumatic cylinder 106 and the U-shaped clamping plate 104 to move, and the U-shaped clamping plate 104 is clamped on the clamping block 107 fixed symmetrically at the rear side of the base 61 through the pneumatic cylinder 106.

[0029] As shown in the figure, Fig. 2 and 3 As shown in the figure, in some embodiments of the present application, in order to achieve the effect of stretching the heating part 62, the filtering part 63 and the sealing part 64, the stretching mechanism 200 comprises guide columns 201 fixed around the base 61, guide sleeves 202 fixed around the upper seat 642, connecting sleeves 203 fixed around the flow guide plate 631 and the filter screen plate 632, the connecting sleeves 203 movably sleeving on the guide columns 201, the connecting sleeves 203 blocking the flow guide plate 631 below, the connecting sleeves 203 movably sleeving in the guide sleeves 202, a second motor 204 fixed at the rear side of the base 61, a second screw rod 205 fixed at the output end of the second motor 204, and a second threaded sleeve 206 fixed at the rear side of the upper seat 642, the second screw rod 205 and the second threaded sleeve 206 being in threaded engagement.

[0030] In operation, the second motor 204 drives the second screw 205 to rotate, so that the second threaded sleeve 206 which is in threaded cooperation with the second screw 205 drives the upper seat 642 to move upward, and when the upper seat 642 moves, the guiding sleeve 202 moves upward along the connecting sleeve 203 until the top end of the guiding sleeve 202 and the connecting sleeve 203 is reached, at this time, the end extension of the connecting sleeve 203 pulls the filter screen plate 632 and the flow guide plate 631 upward, so as to extend the heating part 62, the filtering part 63 and the sealing part 64.

[0031] As shown in Fig. 2 and 3 In some embodiments of the present application, in order to achieve the effect of driving the moving platform 4 to move backward, the driving mechanism 300 includes a rack 302 arranged on the left side of the moving platform 4, a third motor 301 fixed on the left side of the workbench 1, and a spur gear 303 fixed on the output end of the third motor 301, wherein the spur gear 303 is in engagement with the rack 302.

[0032] When the hydrogen purification device for preventing hydrogen embrittlement is in operation, the third motor 301 drives the spur gear 303 to rotate, so that the spur gear 303 drives the rack 302 to move, and at this time, the moving platform 4 moves along the guide rail 3.

[0033] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A hydrogen purification device for preventing hydrogen embrittlement, characterized in that: The device includes a workbench (1), a protective shell (2) located in the center above the workbench (1), multiple sets of guide rails (3) located above the workbench (1), and a moving platform (4) located above the workbench (1). The moving platform (4) is movably connected to the workbench (1) via the multiple sets of guide rails (3). A track (5) is provided horizontally on the moving platform. A purification device (6) is movably connected to the track (5). The purification device (6) includes a base (61) movably connected to the track (5). A heating part (62), a filtering part (63), and a sealing part (64) are arranged sequentially above the base (61). A moving device that can drive the base (61) to move along the track (5) is provided on the right side of the moving platform (4). The mechanism (100) includes an extension mechanism (200) on the rear side of the base (61) that can extend the heating part (62), the filter part (63) and the sealing part (64). A drive mechanism (300) is provided on the left side of the workbench (1) that can drive the moving platform (4) to move backward. The heating part (62) includes a placement groove (621) on the base (61). A sealing strip (622) is installed in the placement groove (621). A heating plate (623) is symmetrically arranged in the sealing strip (622). Mica plates (624) are provided on the upper and lower sides of the heating plate (623). The filter part (63) includes a guide plate (631) above the sealing strip (622). A filter screen plate (632) is provided above the guide plate (631), a guide groove (633) is provided above the guide plate (631), and multiple guide blocks (634) are provided in the guide groove (633). The sealing part (64) includes an upper slide plate (641) that is movably inserted into the upper part of the protective shell (2). An upper seat (642) is movably inserted below the upper slide plate (641). Multiple sealing rings (643) are sequentially installed below the upper seat (642). A palladium-silver alloy membrane (645) is sandwiched between the multiple sealing rings (643). The extension mechanism (200) includes guide posts (201) fixed around the base (61). A guide sleeve (202) is fixed around the upper seat (642). Connecting sleeves (203) are fixedly provided around the flow guide plate (631) and filter screen plate (632). The connecting sleeves (203) are movably sleeved on the guide post (201). The bottom of the connecting sleeves (203) blocks the bottom of the flow guide plate (631). The top of the connecting sleeves (203) is movably sleeved in the guide sleeve (202). A second motor (204) is fixed on the rear side of the base (61). A second screw (205) is fixed on the output end of the second motor (204). A second threaded sleeve (206) is fixed on the rear side of the upper seat (642). The second screw (205) and the second threaded sleeve (206) are threadedly engaged. During operation, the second screw (205) is driven to rotate by the second motor (204).The second threaded sleeve (206), which is threaded to it, causes the upper seat (642) to move upward. As the upper seat (642) moves, it moves upward along the connecting sleeve (203) via the guide sleeve (202) until it reaches the top of the guide sleeve (202) and the connecting sleeve (203). At this point, the extended portion of the connecting sleeve (203) pulls the filter plate (632) and the guide plate (631) upward, thereby extending the heating part (62), the filtering part (63), and the sealing part (64).

2. The hydrogen purification device for preventing hydrogen embrittlement according to claim 1, characterized in that... The moving mechanism (100) includes a first motor (101) fixed to the moving platform (4), a first screw (102) fixed at the output end of the first motor (101), the first screw (102) being movably sleeved on the moving platform (4), a U-shaped clamping plate (104) symmetrically arranged on the rear side of the base (61), a moving plate (105) arranged on the rear side of the U-shaped clamping plate (104), the U-shaped clamping plate (104) being movably inserted into the moving plate (105), the moving plate (105) being laterally inserted into the moving platform (4), a first threaded sleeve (103) fixed on the rear side of the moving plate (105), the first screw (102) and the first threaded sleeve (103) meshing, a cylinder (106) fixed on the moving plate (105), the output end of the cylinder (106) and the U-shaped clamping plate (105) being symmetrically arranged on the rear side of the base (61), a moving plate (105) being symmetrically arranged on the rear side of the base (61), the first screw (102) and the first threaded sleeve (103) being symmetrically arranged on the rear side of the moving plate (105 ... The U-shaped card plate (104) is fixedly connected, and the card blocks (107) are symmetrically fixed on the rear side of the base (61), and the U-shaped card plate (104) is engaged with the card blocks (107).

3. The hydrogen purification device for preventing hydrogen embrittlement according to claim 2, characterized in that... The drive mechanism (300) includes a rack (302) disposed on the left side of the moving platform (4), a third motor (301) fixed on the left side of the workbench (1), and a spur gear (303) fixed at the output end of the third motor (301), the spur gear (303) and the rack (302) meshing.

4. A hydrogen purification device for preventing hydrogen embrittlement according to claim 3, characterized in that... A through groove (21) is provided in the middle of the protective shell (2) and the worktable (1), and a material conveying channel (22) is provided in the upper seat (642), the guide plate (631) and the base (61).

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