Hydrogen impurity removal apparatus and method

Abstract

The application relates to the technical field of hydrogen impurity removal, and discloses a hydrogen impurity removal device and method, which comprises a rotating body in a circular shape, a plurality of cavities are uniformly distributed on the inner circumference of the rotating body, and adsorbents are filled in the cavities; a one-way gas guide box is arranged between adjacent cavities; the device further comprises two gas conveying assemblies; with the rotation of the rotating body, the two gas conveying assemblies are correspondingly arranged and communicated with two cavities respectively, so that hydrogen gas flows through the two cavities corresponding to the gas conveying assemblies and the cavities between the two cavities; the device further comprises a feeding container and a collecting container; with the rotation of the rotating body, the feeding container and the collecting container are correspondingly arranged and communicated with a cavity; in the application, the adsorbents in the plurality of cavities can gradually adsorb impurities in hydrogen gas, so that the purity of the hydrogen gas is gradually improved; through the rotation of the rotating body, the gas conveying position can be adjusted, the continuous and efficient impurity removal effect can be ensured, the low-activity old adsorbents can be gradually replaced through the feeding and collecting structures, and then hydrogen gas with high purity can be continuously obtained.

Description

Technical Field

[0001] This invention relates to the field of hydrogen impurity removal technology, and specifically to a hydrogen impurity removal device and method. Background Technology

[0002] With the development of the fuel cell vehicle industry, technological challenges are being overcome one by one, the entire industry chain is maturing, and the construction of an efficient, environmentally friendly, and green hydrogen society is becoming a reality. Hydrogen, as the foundation for the construction and development of a hydrogen society, is widely present in traditional industrial sectors, and my country has been the world's largest producer of hydrogen for many consecutive years.

[0003] The main benefits of removing impurities from fuel hydrogen are as follows: Improved combustion performance: Pure hydrogen burns more completely and efficiently, releasing more energy and increasing fuel utilization efficiency. Reduced pollutant emissions: The presence of impurities can lead to incomplete combustion, generating more pollutants; impurity removal reduces adverse environmental impacts. Ensured normal equipment operation: Impurities prevent damage, blockage, or corrosion to equipment during combustion, ensuring stable and reliable operation. Optimized system stability: Pure fuel hydrogen helps maintain the stability and security of the entire energy supply system, reducing malfunctions and fluctuations caused by impurities.

[0004] In the prior art, invention patents CN105293438B (a method and apparatus for repurifying circulating hydrogen) and CN113350961B (a hydrogen impurity removal device based on a hydrogen refueling station) both use modified activated carbon as an adsorbent to adsorb impurities in hydrogen, such as CO and H2S. During the adsorption of impurities in hydrogen by modified activated carbon, hydrogen passes through the adsorbent, which retains the impurities. As the hydrogen passes through, the activity of the adsorbent gradually decreases, exhibiting a phenomenon where the activity of the adsorbent upstream of the hydrogen flow is lower than that of the activated carbon downstream. This necessitates frequent replacement of the less active adsorbent to maintain its activity and thus obtain hydrogen of higher purity. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art mentioned above and to provide a hydrogen impurity removal device and method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A hydrogen impurity removal device includes a circular rotating body with several cavities evenly distributed around its circumference. The cavities are filled with an adsorbent to adsorb impurities in the hydrogen. A one-way gas guide box is provided between adjacent cavities to allow one-way hydrogen flow between the cavities in the rotating body. It also includes two gas delivery components for delivering hydrogen in and delivering hydrogen out, respectively; as the rotating body rotates, the two gas delivery components correspond to and connect with the two cavities, respectively, so that hydrogen flows through the two cavities corresponding to the gas delivery components and the cavity between the two cavities; It also includes a feeding container for containing new adsorbent and a collecting container for collecting old adsorbent; the feeding container and the collecting container are vertically aligned and located on the upper and lower sides of the rotating body, respectively; as the rotating body rotates, the feeding container and the collecting container correspond to a certain cavity and are respectively connected to that cavity, and hydrogen does not flow through the cavity when it corresponds to the feeding container and the collecting container.

[0007] Furthermore, the one-way gas guide box separates adjacent cavities; the one-way gas guide box is provided with an hourglass-shaped gas guide channel, a check valve is provided in the middle of the gas guide channel, and filter plates are provided at both ends of the gas guide channel to allow hydrogen to pass through and block the adsorbent.

[0008] Furthermore, the rotating body is provided with several air inlets, each corresponding to and connected to the cavity, and each air inlet is equipped with a first air valve.

[0009] Furthermore, the gas delivery assembly includes a fixed pipe, a movable pipe, a telescopic corrugated pipe, and an automatic telescopic rod for delivering hydrogen; the telescopic corrugated pipe is connected between the fixed pipe and the movable pipe to form a channel for delivering hydrogen; the two ends of the automatic telescopic rod are connected to the fixed pipe and the movable pipe respectively and drive the movable pipe to move; a sealing ring is provided at the end of the movable pipe.

[0010] Furthermore, a second air valve is installed on the movable tube, and an annular seat is provided on the outside of the fixed tube. The outer shell of the second air valve is connected to several parallel guide rods. The guide rods are parallel to the axial direction of the fixed tube and the movable tube, and the guide rods slide through the annular seat.

[0011] Furthermore, the rotating body includes several conical shells, the upper and lower walls of each cavity being the conical shells; the conical shells are provided with a feed inlet in the middle for the adsorbent to pass through, and a first valve body is installed at each feed inlet.

[0012] Furthermore, the feeding container has an opening at its lower end, and a second valve body is provided at the opening of the feeding container; the collecting container has an opening at its upper end, and a third valve body is provided at the opening of the collecting container.

[0013] Furthermore, the rotating body is annular in shape, and a central frame and a central column supporting the rotation of the central frame are provided on the inner side of the rotating body.

[0014] Furthermore, the rotating body is connected to a grooved wheel, and the rotation center line of the grooved wheel and the rotating body are on the same straight line; the number of grooves of the grooved wheel is the same as the number of cavities of the rotating body; a drive dial is engaged on one side of the grooved wheel, and the drive dial is connected to a motor that drives the drive dial to rotate.

[0015] This invention also provides the following technical solutions: A method for hydrogen impurity removal apparatus, the method comprising the following steps: a. Add the new adsorbent into the feeding container; b. The gas delivery assembly supplies hydrogen containing impurities to the rotating body. The hydrogen flows through the two chambers corresponding to the two gas delivery assemblies and the chamber between the two chambers. The adsorbent in the multi-chamber gradually adsorbs the impurities in the hydrogen. c. The rotating body rotates at a certain angle at regular intervals. The angle of each rotation is the angle difference between the centers of adjacent chambers. When the rotating body rotates, the gas delivery assembly stops delivering hydrogen. The rotation of the rotating body adds unused new adsorbent to the hydrogen flow path and removes used old adsorbent from the hydrogen flow path. d. As the rotating body rotates, when the cavity containing the old adsorbent corresponds to the feeding container and the collecting container, the collecting container first collects the old adsorbent in the cavity, and then the feeding container adds new adsorbent into the cavity. e. This cycle continues, allowing new adsorbent to periodically replace part of the old adsorbent.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, the adsorbent in multiple cavities can gradually adsorb impurities in hydrogen, thereby gradually increasing the purity of hydrogen. By rotating the rotating body, the gas delivery position can be adjusted to ensure a continuous and efficient impurity removal effect. Combined with the collection and feeding structure, the old adsorbent with low activity can be gradually replaced, thereby continuously obtaining hydrogen with higher purity. Attached Figure Description

[0017] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0019] Figure 3 This is a side view of the structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the rotating body of the present invention.

[0021] Figure 5 This is a top view of the internal structure of the rotating body of the present invention.

[0022] Figure 6 This is a schematic diagram of the hydrogen flow path according to the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the gas delivery component of the present invention.

[0024] Figure 8This is a three-dimensional structural diagram of the unidirectional air-guided box of the present invention.

[0025] Figure 9 This is a schematic diagram of the internal structure of the unidirectional air-guided box of the present invention.

[0026] Figure 10 This is a schematic diagram of the three-dimensional structure of the inner side of the conical shell of the present invention.

[0027] Figure 11 This is a schematic diagram of the three-dimensional structure of the outer side of the conical shell of the present invention.

[0028] Figure 12 This is a schematic diagram of the three-dimensional structure of the central frame of the present invention.

[0029] Figure 13 This is a schematic diagram of the three-dimensional structure of the central column of the present invention.

[0030] Figure 14 This is a schematic diagram of the rotary drive structure of the present invention.

[0031] In the diagram: 1. Rotating body; 2. Cavity; 3. One-way air guide box; 4. Adsorbent; 5. Gas delivery assembly; 6. Feeding container; 7. Collection container; 8. Central frame; 9. Central column; 10. Thrust bearing; 11. Grooved wheel; 12. Active dial; 13. Motor; 101. Air inlet; 102. First air valve; 103. Material inlet; 104. First valve body; 105. Conical shell; 106. Intermediate shell; 301. Air guide channel; 302. Check valve; 303. Filter plate; 501. Fixed pipe; 502. Movable pipe; 503. Telescopic corrugated pipe; 504. Automatic telescopic rod; 505. Sealing ring; 506. Second air valve; 507. Annular seat; 508. Guide rod; 601. Second valve body; 701. Third valve body; 801. Core tube; 802. Circular space frame; 901. Limiting ring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the main body, or it can be separately arranged from the main body and connected to the main body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0036] Specific embodiments of the hydrogen impurity removal device provided by the present invention: Please see Figure 1-14 The hydrogen impurity removal device includes a circular rotating body 1. In this embodiment, the rotating body 1 is annular in shape, and a central frame 8 and a central column 9 supporting the rotation of the central frame 8 are provided on the inner side of the rotating body 1.

[0037] The central frame 8 includes a core cylinder 801 and two horizontal annular frames 802. The two annular frames 802 are respectively connected to the outer sides of the upper and lower ends of the core cylinder 801. The annular frames 802 are connected to the inner ring side of the rotating body 1 to achieve central support for the rotating body 1.

[0038] The core cylinder 801 is sleeved on the outside of the central column 9. Two limiting rings 901 are provided on the outside of the central column 9 between the two limiting rings 901. The core cylinder 801 rotates on the outside of the central column 9 between the two limiting rings 901. The annular mesh frame 802 and the rotating body 1 rotate synchronously with the core cylinder 801. In this embodiment, thrust bearings 10 are provided between the upper side of the core cylinder 801 and the limiting ring 901, and between the lower side of the core cylinder 801 and the limiting ring 901. The thrust bearings 10 reduce the friction between the core cylinder 801 and the limiting ring 901, ensuring that the core cylinder 801 and the rotating body 1 rotate smoothly.

[0039] The rotating body 1 is connected to a grooved wheel 11. Specifically, the grooved wheel 11 is installed on the outer side of the lower end of the core cylinder 801, and the rotation center line of the grooved wheel 1 and the rotating body 1 are on the same straight line. In this way, the grooved wheel 11 is connected to the rotating body 1 through the core cylinder 801 and the annular grid frame 802, and the rotation of the rotating body 1 can be achieved by driving the grooved wheel 11 to rotate.

[0040] One side of the grooved wheel 11 is engaged with an active dial 12, which is connected to a motor 13 that drives the active dial 12 to rotate. The motor 13 rotates once at regular intervals, causing the active dial 12 to rotate once. One rotation of the active dial 12 can make the grooved wheel 11 and the rotating body 1 rotate accurately by a certain angle.

[0041] The rotating body 1 has a plurality of cavities 2 evenly distributed around its circumference. In this embodiment, there are eight cavities 2. The cavities 2 are filled with an adsorbent 4 for adsorbing impurities in hydrogen gas. In this embodiment, the adsorbent 4 can be activated carbon or modified activated carbon, thereby adsorbing harmful gaseous impurities in hydrogen gas. A one-way gas guide box 3 is provided between adjacent cavities 2. There are eight one-way gas guide boxes 3. The one-way gas guide boxes 3 enable one-way flow of hydrogen gas between each cavity 2 in the rotating body 1, that is, a one-way annular channel for gas flow is formed in the rotating body 1.

[0042] The one-way gas guide box 3 serves as the boundary between adjacent cavities 2 and separates them. The one-way gas guide box 3 is equipped with an hourglass-shaped gas guide channel 301. Both ends of the gas guide channel 301 are connected to the two cavities 2 on both sides. A check valve 302 is provided in the middle of the gas guide channel 301. The function of the check valve 302 is to ensure that hydrogen can only pass through in one direction and cannot pass through in the opposite direction.

[0043] Both ends of the gas guiding channel 301 are equipped with filter plates 303 that allow hydrogen to pass through while blocking the adsorbent 4. In this embodiment, the filter plate 303 is a perforated plate, and the holes on the filter plate 303 are smaller than the outer diameter of the adsorbent 4 particles, which limits the adsorbent 4 while allowing hydrogen to pass through. On the other hand, due to the setting of the check valve 302 of the one-way gas guiding box 3, the gas guiding channel 301 of the one-way gas guiding box 3 has an hourglass-shaped structure that is large at both ends and small in the middle. Therefore, when the hydrogen passes through the one-way gas guiding box 3, it needs to converge and disperse. The perforated plate can play a gas distribution role, so that the converged hydrogen enters the next cavity 2 evenly, thereby allowing the hydrogen to fully contact the adsorbent 4 in the cavity 2, reducing the dead zone of the adsorbent 4, and improving the utilization rate of the adsorbent 4.

[0044] The outer ring side of the rotating body 1 is provided with several gas inlets 101, which correspond one-to-one with and are connected to the cavity 2. Each gas inlet 101 is equipped with a first gas valve 102. When the first gas valve 102 is opened, hydrogen gas can flow inside and outside the cavity 2 of the rotating body 1. When closed, the cavity 2 is isolated from the outside of the rotating body 1.

[0045] In this embodiment, two gas delivery components 5 are provided for conveying hydrogen into and out of the rotating body, respectively. The center lines of the two gas delivery components 5 are located on the same straight line, and the two gas delivery components 5 are located on both sides of the rotating body 1. One gas delivery component 5 delivers hydrogen into the rotating body 1 for adsorption and purification, and the other delivers the purified hydrogen to the subsequent equipment.

[0046] The gas delivery assembly 5 includes a fixed pipe 501 for delivering hydrogen, a movable pipe 502, a telescopic corrugated pipe 503, and an automatic telescopic rod 504; the telescopic corrugated pipe 503 is connected between the fixed pipe 501 and the movable pipe 502 to form a channel for delivering hydrogen; the automatic telescopic rod 504 is connected to the fixed pipe 501 and the movable pipe 502 at both ends and drives the movable pipe 502 to move; a sealing ring 505 is provided at the end of the movable pipe 502.

[0047] The automatic telescopic rod 504 can be an electric, pneumatic, or hydraulic telescopic rod. The extension and retraction of the automatic telescopic rod 504 causes the movable tube 502 to extend and retract. The telescopic bellows 503 extends and retracts with the change in position of the movable tube 502, ensuring a seal during hydrogen output. The extension and retraction of the movable tube 502 allows it to correspond to different gas inlets 101 on the outer ring side of the rotating body 1. The sealing ring 505 is a rubber ring. The movable tube 502 presses the sealing ring 505 against the outside of the rotating body 1. The sealing ring 505 surrounds the gas inlet 101, ensuring a seal when the gas delivery assembly 5 is connected to the rotating body 1.

[0048] A second air valve 506 is installed on the movable tube 502, and an annular seat 507 is provided on the outside of the fixed tube 501. Several parallel guide rods 508 are connected to the outer shell of the second air valve 506. The guide rods 508 are parallel to the axial direction of the fixed tube 501 and the movable tube 502, and slide through the annular seat 507. The guide rods 508 can ensure the straightness of the movement of the movable tube 502, ensure accurate positioning, and thus facilitate accurate docking with the air inlet 101. An automatic telescopic rod 504 is connected between the second air valve 506 and the annular seat 507. There are four guide rods 508, which are evenly distributed around the outside of the telescopic bellows 503; there are two automatic telescopic rods 504, which are symmetrical on both sides of the telescopic bellows 503.

[0049] In this embodiment, the number of grooves of the grooved wheel 11 is the same as the number of cavities 2 of the rotating body 1. The grooved wheel 11 is an eight-groove grooved wheel 11. The motor 13 drives the active dial 12 to rotate one revolution, and the grooved wheel 11 drives the rotating body 1 to rotate one-eighth revolution, so that the cavities 2 of the rotating body 1 correspond to the air supply components 5 in sequence.

[0050] As the rotating body 1 gradually rotates, the two gas delivery components 5 correspond to and connect with the two cavities 2 respectively. After the gas delivery components 5 are aligned with the cavities 2, the movable tube 502 of the gas delivery component 5 extends out of the corresponding gas inlet 101, and the sealing ring 505 achieves a seal. Then, the corresponding first gas valve 102 and second gas valve 506 are opened, allowing hydrogen gas to pass through the cavities 2 inside the rotating body 1, where the adsorbent 4 adsorbs impurities in the hydrogen gas. In this embodiment, both the first gas valve 102 and the second gas valve 506 are electric slide gate valves. When the rotating body 1 rotates, all first gas valves 102 and second gas valves 506 are closed.

[0051] Hydrogen flows through the two chambers 2 corresponding to the gas delivery assembly 5 and the chamber 2 between the two chambers 2; due to the one-way gas guiding function of the one-way gas guiding box 3, in this embodiment, hydrogen flows through five chambers 2, such as... Figure 6 As shown, among the five chambers 2 through which hydrogen flows, the adsorbent 4 in the rightmost chamber 2 is located upstream of the hydrogen flow and its activity decreases first after multiple uses. The adsorbent 4 in the leftmost chamber 2 is a new adsorbent 4 with the highest activity.

[0052] exist Figure 6 In this process, the rotating body 1 rotates counterclockwise; this continuously introduces new adsorbent 4 into the downstream section of the hydrogen purification process, preventing a decrease in purification efficiency due to a decline in the activity of the adsorbent 4, ensuring a continuous and efficient purification effect, guaranteeing the hydrogen purification effect, obtaining high-purity hydrogen, and preventing a decrease in hydrogen purity. Simultaneously, the deactivated adsorbent 4 is gradually removed from the hydrogen flow area. Due to the one-way gas guide box 3, the hydrogen does not pass through... Figure 6 The upper three cavities 2, when the deactivated adsorbent 4 moves to the cavity 2 Figure 6When in the upper position, it is convenient to replace the deactivated adsorbent 4. In some other embodiments, the position of the gas delivery assembly 5 can be adjusted so that hydrogen flows through more chambers 2. Under the condition of eight chambers 2, hydrogen can pass through a maximum of seven chambers 2, thereby improving the hydrogen impurity removal effect.

[0053] To facilitate the replacement of deactivated old adsorbent 4, this embodiment includes a feeding container 6 for accommodating new adsorbent 4 and a collecting container 7 for collecting old adsorbent 4. The feeding container 6 and the collecting container 7 are vertically aligned and located on the upper and lower sides of the rotating body 1, respectively. As the rotating body 1 rotates, the feeding container 6 and the collecting container 7 correspond to a certain cavity 2 and are respectively connected to that cavity 2. When the cavity 2 corresponds to the feeding container 6 and the collecting container 7, hydrogen gas does not flow through it. In this embodiment, the cavity 2 is... Figure 6 The uppermost cavity 2.

[0054] The rotating body 1 includes several conical shells 105, with the upper and lower walls of each cavity 2 being conical shells 105. Interval shells 106 are provided between adjacent conical shells 105, with the positions of the interval shells 106 corresponding to the one-way air guide box 3 and sealed to the outer side of the upper or lower wall of the one-way air guide box 3. A feed inlet 103 for the adsorbent 4 to pass through is provided in the middle of the conical shell 105, and a first valve body 104 is installed at each feed inlet 103.

[0055] The feeding container 6 has an opening at its lower end, and a second valve body 601 is provided at the opening of the feeding container 6; the collecting container 7 has an opening at its upper end, and a third valve body 701 is provided at the opening of the collecting container 7. In this embodiment, the first valve body 104, the second valve body 601, and the third valve body 701 are all electric slide gate valves; the feeding container 6 has a feeding port at its upper end, and the feeding port is equipped with a sealing flange; when the new adsorbent 4 in the feeding container 6 is insufficient, new adsorbent 4 is added to the feeding container 6 through the feeding port. The collecting container 7 has a discharge port at its lower end, and the discharge port is also equipped with a sealing flange; when the old adsorbent 4 in the collecting container 7 is full, the old adsorbent 4 is discharged through the discharge port.

[0056] When the rotating body 1, carrying the old adsorbent 4, aligns with the feeding container 6 and the collecting container 7, it first opens the first valve 104 on the lower side of the cavity 2 and the third valve 701 on the collecting container 7, allowing the old adsorbent 4 to fall into the collecting container 7. Then, it closes the lower first valve 104 and the third valve 701. Next, it opens the first valve 104 on the upper side of the cavity 2 and the second valve 601 at the lower end of the feeding container 6, allowing the new adsorbent 4 in the feeding container 6 to fall into the cavity 2, completing the replacement of the old and new adsorbent 4. The conical shell 105 ensures that the old adsorbent 4 falls sufficiently. Subsequently, as the rotating body 1 rotates, the new adsorbent 4 in the cavity 2 enters the downstream section through which hydrogen flows to purify the hydrogen. As the rotating body 1 continues to rotate, the cavity 2 gradually moves towards the upstream section through which hydrogen flows, its activity gradually decreasing, and then it moves out of the hydrogen flow area, returning to the feeding container 6 and the collecting container 7 to replace the adsorbent 4. This cycle continues.

[0057] In this embodiment, there are minute gaps between the feeding container 6 and the upper guide port 103 of the rotating body 1, and between the collecting container 7 and the lower guide port 103 of the rotating body 1. However, this will not cause the adsorbent 4 to leak, but it will cause some gas leakage. In other embodiments, structures similar to the retractable movable tube 502 and sealing ring 505 in the gas conveying assembly 5 can be provided at the lower end of the feeding container 6 and the upper end of the collecting container 7 to achieve a better sealing effect.

[0058] The impurity removal method of the hydrogen impurity removal device in this embodiment includes the following steps: Add the new adsorbent 4 to the feeding container 6; The gas delivery assembly 5 supplies hydrogen containing impurities into the rotating body 1. The hydrogen flows through the two chambers 2 corresponding to the two gas delivery assemblies 5 and the chamber 2 between the two chambers 2. The adsorbent 4 in the multi-chamber 2 gradually adsorbs the impurities in the hydrogen. Rotating body 1 rotates at a certain angle at regular intervals. The angle of each rotation is the angle difference between the centers of adjacent chambers 2. When rotating body 1 rotates, gas delivery assembly 5 stops delivering hydrogen. Rotating body 1 causes new adsorbent 4 in an unused chamber 2 to be added into the hydrogen flow path, while simultaneously causing old adsorbent 4 in a used chamber 2 to be removed from the hydrogen flow path. As the rotating body 1 rotates, when the cavity 2 containing the old adsorbent 4 corresponds to the feeding container 6 and the collecting container 7, the collecting container 7 first collects the old adsorbent 4 in the cavity 2, and then the new adsorbent 4 is added to the empty cavity 2. This cycle repeats, allowing the new adsorbent 4 to periodically replace a portion of the old adsorbent 4.

[0059] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydrogen impurity removal device, characterized in that: It includes a circular rotating body (1), with several cavities (2) evenly distributed around the circumference of the rotating body (1), and the cavities (2) are filled with an adsorbent (4) for adsorbing impurities in hydrogen gas; a one-way gas guide box (3) is provided between adjacent cavities (2), and the one-way gas guide box (3) allows hydrogen gas to flow unidirectionally between the cavities (2) in the rotating body (1). It also includes two gas delivery components (5) for delivering hydrogen into and delivering hydrogen out, respectively; as the rotating body (1) rotates, the two gas delivery components (5) correspond to and are connected to the two cavities (2) respectively, so that the hydrogen flows through the two cavities (2) corresponding to the gas delivery components (5) and the cavity (2) between the two cavities (2); It also includes a feeding container (6) for containing new adsorbent (4) and a collecting container (7) for collecting old adsorbent (4); the feeding container (6) and the collecting container (7) are vertically aligned and located on the upper and lower sides of the rotating body (1); as the rotating body (1) rotates, the feeding container (6) and the collecting container (7) correspond to a certain cavity (2) and are respectively connected to the cavity (2), and hydrogen does not flow through the cavity (2) when it corresponds to the feeding container (6) and the collecting container (7); The one-way gas guide box (3) separates the adjacent chambers (2); the one-way gas guide box (3) is provided with an hourglass-shaped gas guide channel (301), a check valve (302) is provided in the middle of the gas guide channel (301), and filter plates (303) are provided at both ends of the gas guide channel (301) to allow hydrogen to pass through and block the adsorbent (4). The gas delivery assembly (5) includes a fixed pipe (501) for delivering hydrogen, a movable pipe (502), a telescopic corrugated pipe (503), and an automatic telescopic rod (504); the telescopic corrugated pipe (503) is connected between the fixed pipe (501) and the movable pipe (502) to form a channel for delivering hydrogen; the automatic telescopic rod (504) is connected to the fixed pipe (501) and the movable pipe (502) at both ends and drives the movable pipe (502) to move; a sealing ring (505) is provided at the end of the movable pipe (502); The rotating body (1) includes several conical shells (105), and the upper and lower walls of each cavity (2) are the conical shells (105); the conical shells (105) are provided with a feed inlet (103) for the adsorbent (4) to pass through, and a first valve body (104) is installed at each feed inlet (103). The feeding container (6) has an opening at its lower end, and a second valve body (601) is provided at the opening of the feeding container (6); the collecting container (7) has an opening at its upper end, and a third valve body (701) is provided at the opening of the collecting container (7). The rotating body (1) is connected to a grooved wheel (11), and the rotation center line of the grooved wheel (11) and the rotating body (1) are on the same straight line; the number of grooves of the grooved wheel (11) is the same as the number of cavities (2) of the rotating body (1); a drive dial (12) is engaged on one side of the grooved wheel (11), and the drive dial (12) is connected to a motor (13) that drives the drive dial (12) to rotate; The rotating body (1) is provided with several air inlets (101), and the air inlets (101) correspond one-to-one with the cavity (2) and are connected. Each air inlet (101) is equipped with a first air valve (102).

2. The hydrogen impurity removal device according to claim 1, characterized in that: A second air valve (506) is installed on the movable tube (502), and an annular seat (507) is provided on the outside of the fixed tube (501). The outer shell of the second air valve (506) is connected to several parallel guide rods (508). The guide rods (508) are parallel to the axial direction of the fixed tube (501) and the movable tube (502), and the guide rods (508) slide through the annular seat (507).

3. The hydrogen impurity removal device according to claim 1, characterized in that: The rotating body (1) is circular in shape, and a central frame (8) and a central column (9) supporting the rotation of the central frame (8) are provided on the inner side of the rotating body (1).

4. The method of the hydrogen impurity removal apparatus according to any one of claims 1-3, characterized in that, The method includes the following steps: a. Add the new adsorbent (4) into the feeding container (6); b. The gas delivery assembly (5) supplies hydrogen containing impurities into the rotating body (1). The hydrogen flows through the two chambers (2) corresponding to the two gas delivery assemblies (5) and the chamber (2) between the two chambers (2). The adsorbent (4) in the multi-chamber (2) gradually adsorbs the impurities in the hydrogen. c. Rotating body (1) rotates at a certain angle at regular intervals. The angle of each rotation is the angle difference between the centers of adjacent cavities (2). When rotating body (1) rotates, the gas delivery assembly (5) stops delivering hydrogen. Rotating body (1) rotates to add unused new adsorbent (4) into the hydrogen flow path and at the same time removes used old adsorbent (4) from the hydrogen flow path. d. As the rotating body (1) rotates, when the cavity (2) containing the old adsorbent (4) corresponds to the feeding container (6) and the collecting container (7), the collecting container (7) first collects the old adsorbent (4) in the cavity (2), and then the feeding container (6) adds the new adsorbent (4) into the cavity (2). e. This cycle continues, allowing the new adsorbent (4) to periodically replace part of the old adsorbent (4).

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