Deep adsorption hydrogen purification device

Abstract

The utility model relates to the technical field of hydrogen purification equipment, in particular to a deep adsorption hydrogen purification device. According to the technical scheme, the device comprises a supporting base and pressure swing adsorption equipment installed on the supporting base, the device comprises a main shaft rotationally installed in the pressure swing adsorption equipment and a plurality of impurity removal assemblies annularly arrayed with the main shaft as the axis, and each impurity removal assembly is formed by vertically overlapping a first filling frame and a second filling frame. According to the utility model, the traditional adsorption layers which are arranged up and down in multiple layers are designed into the horizontal annular array arrangement, so that gas can be in balanced contact with the adsorbents on the impurity removal components during vertical movement, and the balanced adsorption of the adsorbents at all positions is ensured; the impurity removal assembly is designed to be formed by vertically overlapping the first filling frame and the second filling frame, and the adsorbent can be gradually filled along with overlapping, so that the adsorbent can be uniformly paved in the impurity removal assembly as far as possible through the filling mode, and the problem that the adsorption efficiency is reduced due to accumulation and interval of the adsorbent is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen purification equipment technical field especially, relates to a hydrogen purification device of deep adsorption. BACKGROUND

[0002] Impurities will be produced in the preparation process of hydrogen by biomass pyrolysis gas etc., and high-purity hydrogen is formed after purification. The purification of hydrogen can adopt membrane separation technology, pressure swing adsorption technology etc. Taking the purification of hydrogen by pressure swing adsorption technology as an example, corresponding pressure equipment is needed, and the absorption and release of adsorbent to impurity gas under different pressure conditions are utilized to achieve the purification of hydrogen.

[0003] When the existing hydrogen purification is carried out through pressure equipment, the adsorption layer arranged from top to bottom is utilized to adsorb impurities, when gas is introduced from the lower part, it will first contact with the lower adsorption layer, therefore the adsorption degree of upper and lower adsorption layers is not the same, and the problem of insufficient adsorption of upper adsorption layer when the lower adsorption layer is saturated is prone to occur.

[0004] Therefore, the utility model provides a hydrogen purification equipment capable of balancing the adsorption of impurities. UTILITY MODEL CONTENT

[0005] The utility model relates to a hydrogen purification device of deep adsorption aiming at the problems in the background art.

[0006] The technical scheme of the utility model: a hydrogen purification device of deep adsorption, including support base and the pressure swing adsorption equipment of installation in support base, still including the main shaft of rotation installation in the inside of pressure swing adsorption equipment and the annular array of a plurality of impurity removal components with main shaft as the shaft, the impurity removal component is vertically superimposed and is formed with first filling frame, second filling frame, the first filling cavity for vertically installing second filling frame is set up in first filling frame, the second filling frame is set up with second filling cavity, and the second filling cavity and first filling cavity jointly constitute the space for filling adsorbent.

[0007] Optionally, the first filling frame top end is fixedly connected with the first positioning strip, and the second filling frame top end is fixedly connected with the second positioning strip vertically overlapped with the first positioning strip.

[0008] Optionally, the impurity removal component further includes a top cover covering the top ends of the combined first filling frame and second filling frame.

[0009] Optionally, it comprises a limiting component for limiting each top cover simultaneously.

[0010] Optionally, the limiting component comprises a shaft sleeve located above each impurity removal component and fixedly connected with the main shaft, a connecting ring is rotatably connected to the top end of the shaft sleeve, and a plurality of limiting shafts for pressing the top cover are fixedly connected to the outer ring surface of the connecting ring.

[0011] Optionally, the top end of the shaft sleeve is provided with a cap for increasing the rotational friction of the connecting ring by extrusion.

[0012] Optionally, it further comprises a transmission assembly for driving the plurality of impurity removal components to rotate together, wherein the transmission assembly comprises a transmission sprocket installed at the top end of the main shaft and a chain in transmission connection with the transmission sprocket.

[0013] Compared with the prior art, the hydrogen gas purification device has the following beneficial technical effects:

[0014] The present application designs the traditional upper and lower multi-layer adsorption layer as a horizontal annular array, so that the gas can be evenly contacted with the adsorbent on each impurity removal component when moving vertically, thereby ensuring the balanced adsorption of the adsorbent everywhere.

[0015] Further, by designing the impurity removal component as a vertical stack of the first filling frame and the second filling frame, the adsorbent can be filled gradually with the stacking, and such a filling mode can ensure that the adsorbent is as evenly laid as possible in the impurity removal component, avoiding the problem of reduced adsorption efficiency caused by adsorbent accumulation and spacing.

[0016] In addition, the rotation function provided by the transmission assembly for the impurity removal component can increase the mutual impact of the adsorbent and the gas, thereby improving the adsorption effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic view of the hydrogen gas purification device with deep adsorption is given;

[0018] Figure 2 For Figure 1 A connection schematic view of the main shaft, the impurity removal component and the limiting component;

[0019] Figure 3 A structure schematic view of the impurity removal component in a separated state;

[0020] Figure 4 For Figure 3 Another view of the structure schematic view;

[0021] Figure 5 For Figure 2 A structure schematic view of the limiting component.

[0022] Reference signs: 1, support base;

[0023] 2, pressure swing adsorption equipment;

[0024] 3, main shaft;

[0025] 4, impurity removing assembly; 41, first filling frame; 411, first filling cavity; 412, first positioning strip; 42, second filling frame; 421, second filling cavity; 422, second positioning strip; 43, top cover;

[0026] 5, limiting assembly; 51, shaft sleeve; 511, cap; 52, connecting ring; 53, limiting shaft;

[0027] 6, transmission assembly; 61, transmission sprocket; 62, chain. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be pointed out that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present application, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements inside. 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.

[0031] As Figures 1-5As shown, the hydrogen purification device for deep adsorption provided by the utility model discloses a support base 1 and the pressure swing adsorption equipment 2 installed on the support base 1, the bottom of the pressure swing adsorption equipment 2 is equipped with a gas conveying pipeline, under the boosting state, the mixed gas enters the pressure swing adsorption equipment 2 through the pipeline and the impurities are adsorbed by the adsorbent in the pressure swing adsorption equipment 2, under the pressure reducing state, the adsorbed impurity gas is separated from the adsorbent and then discharged through the gas conveying pipeline. The above working process is the existing structure of the pressure swing purification equipment, which will not be repeated here.

[0032] In the embodiment, the hydrogen purification device comprises the main shaft 3 rotatably installed in the pressure swing adsorption equipment 2 by the existing structure such as a bearing and a plurality of impurity removal assemblies 4 arranged in the annular array with the main shaft 3 as the shaft, the impurity removal assembly 4 is vertically overlapped by the first filling frame 41 and the second filling frame 42, and the top cover 43 is arranged on the combined top end cover. The first filling frame 41 is provided with the first filling cavity 411 for vertically installing the second filling frame 42, the second filling frame 42 is provided with the second filling cavity 421, and the second filling cavity 421 and the first filling cavity 411 jointly form a space for filling the adsorbent, and the adsorbent can be gradually filled into the space as the second filling frame 42 is slowly vertically clamped into the first filling frame 41. The first filling frame 41 and the second filling frame 42 are both provided with the apertures for the gas to pass through. The first filling frame 41 is fixedly connected with the first positioning strip 412 at the top end, and the second filling frame 42 is fixedly connected with the second positioning strip 422 vertically overlapped with the first positioning strip 412.

[0033] Further, the hydrogen purification device further comprises the limiting assembly 5 for simultaneously limiting each top cover 43. The limiting assembly 5 comprises the shaft sleeve 51 located above each impurity removal assembly 4 and fixedly connected with the main shaft 3 through the pin shaft, welding or other modes, the connecting ring 52 is rotatably connected with the top end of the shaft sleeve 51, and the limiting shaft 53 for pressing the top cover 43 is fixedly connected with the outer ring surface of the connecting ring 52 in the same number as the impurity removal assemblies 4. The cap 511 is arranged at the top end of the shaft sleeve 51 for increasing the rotating friction of the connecting ring 52 by extrusion. In other embodiments, the connecting ring 52 can also be designed to be screw threadedly connected with the shaft sleeve 51, as long as the initial rotation direction is determined, and the limiting shaft 53 can also be ensured to be located on each impurity removal assembly 4 while being screwed.

[0034] Further, the hydrogen purification device further comprises the transmission assembly 6 for driving the plurality of impurity removal assemblies 4 to rotate together, the transmission assembly 6 comprises the transmission sprocket 61 fixedly installed at the top end of the main shaft 3 and the chain 62 in transmission connection with the transmission sprocket 61, and the end portion of one of the main shafts 3 is connected with the external motor output shaft, so that the main shaft 3 and each impurity removal assembly 4 can be rotated by the motor. The mutual impact between the adsorbent and the gas is increased in the rotating mode, and the adsorption effect is improved.

[0035] The working principle of the embodiment is that: by designing the traditional upper and lower multi-layer adsorption layer as a horizontal annular array, the gas can be evenly contacted with the adsorbent on each impurity removal assembly 4 when moving vertically, thereby ensuring the balanced adsorption of the adsorbent everywhere; by designing the impurity removal assembly 4 as being composed of vertically stacked first filling frame 41 and second filling frame 42, the adsorbent can be filled successively as the stacking proceeds, and such filling mode can ensure that the adsorbent is laid as evenly as possible in the impurity removal assembly 4, avoiding the problem of reduced adsorption efficiency caused by adsorbent accumulation and spacing.

[0036] In addition, the rotation function provided by the transmission assembly 6 for the impurity removal assembly 4 can increase the mutual impact of the adsorbent and the gas, thereby improving the adsorption effect.

[0037] Specifically, after the mixed gas enters the pressure swing adsorption device 2 through the gas pipeline below the pressure swing adsorption device 2, the mixed gas can be evenly contacted with the adsorbent in each impurity removal assembly 4 to remove impurity gas. At the same time, the external motor drives the main shaft 3 to rotate, thereby driving the impurity removal assembly 4 to rotate, and the adsorbent in the rotating impurity removal assembly 4 can collide with the gas, thereby better adsorbing the impurity gas.

[0038] In the embodiment, the adsorbent can be more evenly filled into the impurity removal assembly 4, specifically, Figures 3-4 When the second filling frame 42 is stacked into the first filling cavity 411 of the first filling frame 41 from top to bottom, the adsorbent can be added into successively, that is, a part of the adsorbent is added after stacking a distance, until the second filling frame 42 is completely stacked with the first filling frame 41. Then, the top cover 43 is covered at the top end of the first filling frame 41 and the second filling frame 42, and the connecting ring 52 is rotated to the top cover 43, so that each top cover 43 can be positioned at the same time. In this process, the rotating connection between the connecting ring 52 and the shaft sleeve 51 can be designed as a threaded screw connection as described above, or a few pin holes can be opened on the connecting ring 52 and the shaft sleeve 51, and a pin shaft, a screw shaft or other limiting members are used for fixing after rotation to increase the limiting effect of the top cover 43.

[0039] The above specific embodiments are only several optional embodiments of the present application, and based on the technical solutions of the present application and the related inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A deep adsorption hydrogen purification device, comprising a supporting base (1) and a pressure swing adsorption device (2) installed on the supporting base (1), characterized in that, Also include: The main shaft (3) is rotatably installed in the pressure swing adsorption device (2), and a plurality of impurity removal assemblies (4) are arranged in the annular array of the main shaft (3). The impurity removal assembly (4) is vertically stacked by a first filling frame (41) and a second filling frame (42). The first filling frame (41) is provided with a first filling cavity (411) for vertically installing the second filling frame (42), and the second filling frame (42) is provided with a second filling cavity (421). The second filling cavity (421) and the first filling cavity (411) together form a space for filling the adsorbent.

2. The apparatus for purifying hydrogen gas by deep adsorption according to claim 1, wherein The first filling frame (41) is fixedly connected with a first positioning strip (412) at the top end, and the second filling frame (42) is fixedly connected with a second positioning strip (422) vertically overlapped with the first positioning strip (412) at the top end.

3. A deep adsorptive hydrogen purification device according to claim 2, characterized in that, The impurity removal assembly (4) further comprises a top cover (43) covering the top end of the combined first filling frame (41) and second filling frame (42).

4. The apparatus for deep adsorption hydrogen purification according to claim 3, characterized in that, It includes a limiting assembly (5) for limiting each top cover (43) at the same time.

5. A deep adsorptive hydrogen purification device according to claim 4, characterized in that, The limiting assembly (5) comprises a shaft sleeve (51) located above each impurity removal assembly (4) and fixedly connected with the main shaft (3). The top end of the shaft sleeve (51) is rotatably connected with a connecting ring (52), and the outer ring surface of the connecting ring (52) is fixedly connected with a plurality of limiting shafts (53) for pressing the top cover (43).

6. A deep adsorptive hydrogen purification device according to claim 5, characterized in that, The top end of the shaft sleeve (51) is provided with a cap (511) for increasing the rotational friction of the connecting ring (52) by extrusion.

7. A deep adsorptive hydrogen purification device according to claim 6, characterized in that It also includes a transmission assembly (6) for driving a plurality of impurity removal assemblies (4) to rotate together. The transmission assembly (6) comprises a transmission sprocket (61) installed at the top end of the main shaft (3) and a chain (62) in transmission connection with the transmission sprocket (61).

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