A hydrogen purification adsorption column for propane dehydrogenation tail gas

Abstract

The present application relates to hydrogen purification technical field, specifically to a kind of propane dehydrogenation tail gas hydrogen purification adsorption tower, including adsorption tower main body, adsorption tower cover, gas pipe, discharge pipe and purification auxiliary impurity removal mechanism, cleaning auxiliary component;The bottom end side of the adsorption tower main body is connected with gas pipe;It is mainly through setting up purification auxiliary impurity removal mechanism and cleaning auxiliary component between cooperation in adsorption tower, provide an excellent impurity pretreatment work for propane dehydrogenation tail gas hydrogen purification work, remove solid particles and other impurities in the gas to be treated, to reduce the subsequent hydrogen purification work burden, positively influence purification quality, improve overall purification work efficiency;Therefore, the present application solves the problem that hydrogen purification device of propane dehydrogenation tail gas under prior art lacks the processing mechanism of solid particles and other impurities suitable, can improve hydrogen purification work quality.

Description

Technical Field

[0001] This invention relates to the field of hydrogen purification technology, specifically to a hydrogen purification adsorption tower for propane dehydrogenation tail gas. Background Technology

[0002] Propane is usually in a gaseous state, but it is generally transported after being compressed into a liquid state. Propane can be obtained from refined oil products after processing crude oil or natural gas. Propane is commonly used as fuel for engines, barbecued foods, and domestic heating systems. In the market, propane is generally referred to as liquefied petroleum gas, which often contains propylene, butane, and butene. Propane dehydrogenation refers to the process of dehydrogenating propane to produce propylene monomer, which is an important method for producing propylene. Propane dehydrogenation requires a propane dehydrogenation unit. The tail gas produced after processing by the propane dehydrogenation unit needs to undergo hydrogen purification treatment for further better utilization.

[0003] In existing technologies, hydrogen purification of propane dehydrogenation tail gas is typically achieved using multiple adsorption towers. Each adsorption tower performs the same purification function, and setting up multiple adsorption towers is equivalent to multi-stage cyclic purification. However, during the purification process, there is a lack of mechanisms to treat impurities such as solid particles mixed in the tail gas. The treatment process is not perfect, which increases the burden of purification work and also has a negative impact on the purification quality.

[0004] Therefore, we need a hydrogen purification adsorption tower for propane dehydrogenation tail gas to solve the problem mentioned above that the existing technology for hydrogen purification of propane dehydrogenation tail gas lacks a suitable treatment mechanism for solid particles and other impurities, which can improve the quality of hydrogen purification. Summary of the Invention

[0005] The purpose of this invention is to provide a hydrogen purification adsorption tower for propane dehydrogenation tail gas, so as to solve the problem mentioned in the background art that the existing hydrogen purification device for propane dehydrogenation tail gas lacks a suitable treatment mechanism for solid particles and other impurities, thereby improving the quality of hydrogen purification.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen purification adsorption tower for propane dehydrogenation tail gas, comprising an adsorption tower body, an adsorption tower cover, a gas supply pipe, a discharge pipe, a purification auxiliary removal mechanism, and a cleaning auxiliary component; a gas supply pipe is connected to one side of the bottom of the adsorption tower body, an adsorption tower cover is connected to the top of the adsorption tower body, and a discharge pipe is connected to the top of the adsorption tower cover; the gas to be purified enters the adsorption tower body from the gas supply pipe, then rises and passes through the purification auxiliary removal mechanism for impurity removal; the purification auxiliary removal mechanism is connected and disposed in the adsorption tower, and the purification auxiliary removal mechanism works in conjunction with the cleaning auxiliary component to remove solid particulate impurities in the gas; the cleaning auxiliary component is disposed in the adsorption tower.

[0007] Preferably, the purification auxiliary impurity removal mechanism includes a connecting pipe body, a water supply pipe, a sewage discharge bottom pipe, an annular water storage pipe, an atomizing dust suppression nozzle, a frustum-shaped ring, impurity removal filter holes, support plates, and mounting and fixing plates; annular sealing connecting plates are symmetrically fixed at both ends of the connecting pipe body, and annular sealing connecting plates are also fixedly fixed at the top of the adsorption tower body and the bottom of the adsorption tower cover; one end of the connecting pipe body is fixedly connected to the top of the adsorption tower body, and the other end of the connecting pipe body is fixedly connected to the bottom of the adsorption tower cover; the annular sealing connecting plates of the three are fastened with screws. The pipes are fixedly connected by bolts. A water supply pipe is connected to one side of the connecting pipe body. The sewage discharge bottom pipe is connected to the bottom side of the adsorption tower body. The annular water storage pipe is fixedly installed on the inner wall of the connecting pipe body, and atomizing dust suppression nozzles are equidistantly arranged on the annular water storage pipe. The frustum-shaped ring body is installed in the adsorption tower body. Impurity removal and filtration holes are equidistantly arranged on the frustum-shaped ring body. Support plates are symmetrically fixedly installed on the small-diameter side of the frustum-shaped ring body. A mounting plate is fixedly installed at one end of the support plate. The mounting plate is fixedly installed on the inner wall of the adsorption tower body by screws.

[0008] Preferably, the annular water storage pipe and the water delivery pipe are positioned correspondingly, have the same number of sets, and are connected to each other.

[0009] Preferably, the small port of the frustum-shaped ring faces upward and the large port faces downward, and the outer wall of the large port is adapted to fit and closely adhere to the inner wall of the adsorption tower body.

[0010] Preferably, the impurity removal filter holes are arranged in a ring at equal intervals on the frustum-shaped ring body, and are also arranged at equal intervals in the vertical direction, so that the impurity removal filter holes and the frustum-shaped ring body together form a frustum-shaped impurity removal cylinder.

[0011] Preferably, the cleaning auxiliary component includes a rotary control motor, a connecting shaft, a support plate, a mounting docking plate, a support shaft body, a supporting elastic strip, a middle elastic strip, a tail elastic strip, an elastic mesh column, impurity removal and adsorption cotton, an auxiliary groove, an auxiliary circular groove, a mesh cleaning cone, and a cleaning elastic barb. The rotary control motor is fixedly mounted on the top of the adsorption tower cover and is connected to the connecting shaft. One end of the connecting shaft extends to the inside of the adsorption tower cover, and the end is fixedly mounted with the support plate. The support plate and the mounting docking plate are fixedly connected by bolts. The mounting docking plate is fixedly mounted... One end of the bearing shaft extends into the inner side of the frustoconical ring, and the outer wall of the bearing shaft is fixedly provided with supporting elastic strips at equal intervals. The supporting elastic strips are fixedly connected to the middle elastic strips through elastic mesh posts, and the middle elastic strips are fixedly connected to the tail elastic strips through elastic mesh posts. Impurity removal and adsorption cotton is provided in the elastic mesh posts. The outer wall of the impurity removal and adsorption cotton is provided with auxiliary grooves at equal intervals. The auxiliary grooves are provided with auxiliary circular grooves at equal intervals. One end of the tail elastic strip is fixedly provided with a mesh cleaning cone, and the outer wall of the mesh cleaning cone is fixedly provided with cleaning elastic barbs at equal intervals.

[0012] Preferably, the elastic mesh post is composed of twelve elastic sheets. For the elastic sheet disposed on the elastic mesh post between the supporting elastic strip and the intermediate elastic strip, one end is fixedly disposed on the supporting elastic strip and the other end is fixedly disposed on the intermediate elastic strip. For the elastic sheet disposed on the elastic mesh post between the intermediate elastic strip and the tail elastic strip, one end is fixedly disposed on the intermediate elastic strip and the other end is fixedly disposed on the tail elastic strip.

[0013] Preferably, the supporting elastic strip, the middle elastic strip, and the tail elastic strip together form an elastic support member, and the length of the elastic support member is set differently on the bearing shaft.

[0014] Preferably, the tail end elastic strip is positioned corresponding to the impurity removal filter hole on the frustum-shaped ring; the diameter of the cone end of the mesh cleaning cone is smaller than the diameter of the impurity removal filter hole, and the number of mesh cleaning cones and tail end elastic strips is the same.

[0015] Preferably, the impurity removal and adsorption cotton is cylindrical, and the length of the impurity removal and adsorption cotton is less than the length of the elastic mesh column, the diameter of the impurity removal and adsorption cotton is less than the diameter of the elastic mesh column, and the impurity removal and adsorption cotton is movable within the inner cavity of the elastic mesh column.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The hydrogen purification adsorption tower for propane dehydrogenation tail gas designed in this invention mainly utilizes a combination of purification auxiliary removal mechanism and cleaning auxiliary components within the adsorption tower to provide an excellent impurity pretreatment process for the hydrogen purification of propane dehydrogenation tail gas. This removes solid particles and other impurities from the gas to be treated, thereby reducing the burden on subsequent hydrogen purification work and positively impacting purification quality, thus improving overall purification efficiency. Therefore, this invention solves the problem of existing propane dehydrogenation tail gas hydrogen purification devices lacking a suitable mechanism for handling solid particles and other impurities, and can improve the quality of hydrogen purification. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hydrogen purification adsorption tower structure for propane dehydrogenation tail gas according to the present invention.

[0019] Figure 2 This is a top view of the internal structure of the hydrogen purification adsorption tower tail gas impurity removal system of the present invention.

[0020] Figure 3 This is a top view of the internal structure of the hydrogen purification adsorption tower tail gas impurity removal system of the present invention.

[0021] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structural connection at point A in the middle;

[0022] Figure 5 This is a schematic diagram of a partial structure connection of the cleaning auxiliary component of the present invention;

[0023] Figure 6 This is a schematic diagram on the right side showing the connection between the elastic mesh post and the tail elastic strip structure in the cleaning auxiliary component of the present invention;

[0024] Figure 7 This is a schematic diagram of the connection between the elastic mesh post and the tail elastic strip structure in the cleaning auxiliary component of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structural connection at point B.

[0026] In the diagram: 1. Adsorption tower body; 2. Adsorption tower cover; 3. Gas supply pipe; 4. Discharge pipe; 5. Annular sealing connection plate; 6. Purification auxiliary impurity removal mechanism; 6. Connecting pipe body; 601. Water supply pipe; 602. Sewage discharge bottom pipe; 603. Annular water storage pipe; 604. Atomizing dust suppression nozzle; 605. Frustum-shaped ring body; 606. Impurity removal filter hole; 607. Support plate; 608. Mounting and fixing plate; 609. Cleaning auxiliary component; 7. Rotary control motor; 701. Connecting shaft; 702. Bearing plate; 703. Mounting docking plate; 704. Bearing shaft; 705. Support elastic strip; 706. Middle elastic strip; 707. Tail end elastic strip; 708. Elastic mesh column; 709. Impurity removal adsorption cotton; 710. Auxiliary groove; 711. Auxiliary circular groove; 712. Mesh cleaning cone; 713. Cleaning elastic barb; 714. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figures 1-2 A hydrogen purification adsorption tower for propane dehydrogenation tail gas includes an adsorption tower body 1, an adsorption tower cover 2, a gas supply pipe 3, a discharge pipe 4, a purification auxiliary removal mechanism 6, and a cleaning auxiliary component 7. The gas supply pipe 3 is connected to one side of the bottom of the adsorption tower body 1, and the adsorption tower cover 2 is connected to the top of the adsorption tower body 1. The discharge pipe 4 is connected to the top of the adsorption tower cover 2. The gas to be purified enters the adsorption tower body 1 through the gas supply pipe 3, then rises and passes through the purification auxiliary removal mechanism 6 for impurity removal. The purification auxiliary removal mechanism 6 is connected and installed inside the adsorption tower. Furthermore, the purification auxiliary removal mechanism 6 and the cleaning auxiliary component 7 work together to remove solid particulate impurities from the gas. The cleaning auxiliary component 7 is installed in the adsorption tower. The main purpose of this invention is to provide an excellent impurity pretreatment for the hydrogen purification of propane dehydrogenation tail gas by setting the purification auxiliary removal mechanism 6 and the cleaning auxiliary component 7 in the adsorption tower to work together. This removes solid particulate impurities and other impurities from the gas to be treated, thereby reducing the burden of subsequent hydrogen purification work, having a positive impact on purification quality, and improving the overall purification efficiency.

[0029] Further addressing the lack of suitable mechanisms for handling solid particles and other impurities in existing propane dehydrogenation tail gas hydrogen purification devices can improve the quality of hydrogen purification operations.

[0030] Example 2: Based on Example 1, please refer to... Figures 2-4The purification auxiliary impurity removal mechanism 6 here includes a connecting pipe body 601, a water supply pipe 602, a sewage discharge bottom pipe 603, an annular water storage pipe 604, an atomizing dust suppression nozzle 605, a frustum-shaped ring body 606, impurity removal filter holes 607, a support plate 608, and a mounting and fixing plate 609. Annular sealing connection plates 5 are symmetrically fixed at both ends of the connecting pipe body 601, and annular sealing connection plates 5 are also fixedly fixed at the top of the adsorption tower body 1 and the bottom of the adsorption tower cover 2. One end of the connecting pipe body 601 is fixedly connected to the top of the adsorption tower body 1. The other end of 1 is fixedly connected to the bottom end of the adsorption tower cover 2. The three are fixedly connected by the annular sealing connecting plate 5. A water supply pipe 602 is connected to one side of the connecting pipe body 601. The sewage discharge bottom pipe 603 is connected to the bottom side of the adsorption tower body 1. The annular water storage pipe 604 is fixedly installed on the inner wall of the connecting pipe body 601. Atomizing dust suppression nozzles 605 are equidistantly arranged on the annular water storage pipe 604. The annular water storage pipe 604 and the water supply pipe 602 are positioned correspondingly, have the same number of sets, and are connected. The frustum-shaped ring 606 is installed on the adsorption tower body 1. In this configuration, the small end of the frustoconical ring 606 faces upwards, and the large end faces downwards, with the outer wall of the large end fitting snugly against the inner wall of the adsorption tower body 1. The frustoconical ring 606 has equidistantly spaced impurity removal filter holes 607, and symmetrically fixed support plates 608 are fixed to the side of the small end of the frustoconical ring 606. One end of the support plate 608 is fixed with a mounting plate 609, which is then fixed to the inner wall of the adsorption tower body 1 by screws. The impurity removal filter holes 607 are arranged in a ring shape on the frustoconical ring 606, and are also equidistant in the vertical direction. The gas to be treated enters from the gas supply pipe 3, and then rises to pass through the purification auxiliary impurity removal mechanism 6 for impurity removal. That is, it is first filtered through the frustum-shaped impurity removal cylinder formed by the impurity removal filter hole 607 and the frustum-shaped ring 606, and then the impurities in the gas are settled by the atomizing dust suppression nozzle 605 on the annular water storage pipe 604. The filtered and impurity removed gas enters the subsequent hydrogen purification process through the discharge pipe 4 at the top of the adsorption tower cover 2. The wastewater generated in this process is discharged through the bottom drain pipe 603.

[0031] Further addressing the lack of suitable mechanisms for handling solid particles and other impurities in existing propane dehydrogenation tail gas hydrogen purification devices can improve the quality of hydrogen purification operations.

[0032] Example 3: Based on Example 2, please refer to... Figures 2-8The cleaning auxiliary component 7 includes a rotary control motor 701, a connecting shaft 702, a support plate 703, a mounting docking plate 704, a support shaft 705, a support elastic strip 706, a middle elastic strip 707, a tail elastic strip 708, an elastic mesh post 709, a dirt-removing absorbent cotton 710, an auxiliary groove 711, an auxiliary circular groove 712, a mesh cleaning cone 713, and a cleaning elastic barb 714. The rotary control motor 701 is fixedly installed at the top of the adsorption tower cover 2, and is connected to the connecting shaft 702. One end of the connecting shaft 702 extends to the inside of the adsorption tower cover 2, and the end is fixedly provided with a support plate 703. The support plate 703 and the mounting docking plate 704 are fixedly connected by bolts. 4. One end of the bearing shaft 705 is fixedly installed, extending to the inner side of the frustoconical ring 606. Supporting elastic strips 706 are fixedly installed at equal intervals on the outer wall of the bearing shaft 705. The supporting elastic strips 706 and the intermediate elastic strip 707 are fixedly connected by elastic mesh posts 709. The intermediate elastic strip 707 and the tail elastic strip 708 are fixedly connected by elastic mesh posts 709. The supporting elastic strip 706, intermediate elastic strip 707, and tail elastic strip 708 form an elastic support member, and the lengths of the elastic support member are unequal on the bearing shaft 705. The elastic mesh post 709 consists of twelve elastic pieces, and the elastic mesh post 709 located between the supporting elastic strip 706 and the intermediate elastic strip 707... The elastic sheet has one end fixedly mounted on the supporting elastic strip 706 and the other end fixedly mounted on the middle elastic strip 707. For the elastic sheet mounted on the elastic mesh post 709 between the middle elastic strip 707 and the tail elastic strip 708, one end is fixedly mounted on the middle elastic strip 707 and the other end is fixedly mounted on the tail elastic strip 708. The elastic mesh post 709 contains a clean-absorbing cotton 710. The outer wall of the clean-absorbing cotton 710 has equidistant auxiliary grooves 711, and the auxiliary grooves 711 have equidistant auxiliary circular grooves 712. One end of the tail elastic strip 708 is fixedly mounted with a mesh cleaning cone 713, and the outer wall of the mesh cleaning cone 713 has equidistant cleaning elastic barbs 714. Here, the tail elastic strip 708 and the frustum-shaped ring 6... The impurity removal filter holes 607 on 06 are positioned correspondingly; the diameter of the cone end of the mesh cleaning cone 713 is smaller than the diameter of the impurity removal filter holes 607, and the number of sets of the mesh cleaning cone 713 and the tail elastic strip 708 is the same; the impurity removal absorbent cotton 710 here is set in a cylindrical shape, and the length of the impurity removal absorbent cotton 710 is smaller than the length of the elastic mesh column 709, and the diameter of the impurity removal absorbent cotton 710 is smaller than the diameter of the elastic mesh column 709. The impurity removal absorbent cotton 710 is movable in the inner cavity of the elastic mesh column 709; here, when performing impurity removal work, the impurities adhering to the frustum-shaped impurity removal cylinder are removed by the set cleaning auxiliary component 7, which on the one hand ensures its filtration and impurity removal efficiency, on the other hand avoids it from causing blockage, and further improves its impurity removal efficiency;The rotation control motor 701 drives the bearing shaft 705 to rotate, which in turn drives the elastic mesh column 709 to rotate. The impurity-removing absorbent cotton 710 installed in the elastic mesh column 709 further improves its impurity removal effect. A mesh cleaning cone 713 is installed at the tail end of the elastic strip 708, and a cleaning elastic barb 714 is installed on the outer wall of the mesh cleaning cone 713. The purpose is to clean impurities from the openings and inner walls of the impurity-removing filter holes 607 on the frustum-shaped ring 606, and to prevent clogging of the impurity-removing filter holes 607.

[0033] Further addressing the lack of suitable mechanisms for handling solid particles and other impurities in existing propane dehydrogenation tail gas hydrogen purification devices can improve the quality of hydrogen purification operations.

[0034] Example 4: Based on Example 3, please refer to... Figures 1-8 We also provide an operating method for a hydrogen purification adsorption tower for propane dehydrogenation tail gas, including:

[0035] Step 1: The gas to be purified enters the adsorption tower body 1 from the gas transmission pipe 3;

[0036] Step 2: The gas then rises and passes through the frustum-shaped impurity removal cylinder formed by the impurity removal filter hole 607 and the frustum-shaped ring 606 for filtration. Afterward, the impurities in the gas are settled by the atomizing dust suppression nozzle 605 on the annular water storage pipe 604, and the wastewater generated in this process is discharged through the sewage discharge bottom pipe 603.

[0037] Step 3: The rotation control motor 701 drives the bearing shaft 705 to rotate, which in turn drives the elastic mesh column 709 to rotate. The impurity removal and adsorption cotton 710 set in the elastic mesh column 709 can further improve its impurity removal effect.

[0038] Step 4: The filtered and purified gas enters the subsequent hydrogen purification process through the discharge pipe 4 at the top of the adsorption tower cover 2.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen purification adsorption tower for propane dehydrogenation tail gas, characterized in that: The system includes an adsorption tower body (1), an adsorption tower cover (2), a gas supply pipe (3), a discharge pipe (4), a purification auxiliary removal mechanism (6), and a cleaning auxiliary component (7). The adsorption tower body (1) is connected to a gas supply pipe (3) on one side of its bottom end, and the adsorption tower body (1) is connected to an adsorption tower cover (2). The adsorption tower cover (2) is connected to a discharge pipe (4) on its top. The gas to be purified enters the adsorption tower body (1) through the gas supply pipe (3) and then rises through the purification auxiliary removal mechanism (6) for impurity removal. The purification auxiliary removal mechanism (6) is connected and installed in the adsorption tower. The purification auxiliary removal mechanism (6) and the cleaning auxiliary component (7) work together to remove solid particulate impurities from the gas. The cleaning auxiliary component (7) is installed in the adsorption tower. The cleaning auxiliary component (7) includes a rotary control motor (701), a connecting shaft (702), a support plate (703), an installation docking plate (704), a support shaft body (705), a support elastic strip (706), a middle elastic strip (707), a tail elastic strip (708), an elastic mesh column (709), a cleansing absorbent cotton (710), an auxiliary groove (711), an auxiliary circular groove (712), a mesh cleaning cone (713), and a cleaning elastic barb (714). The rotary control motor (701) is fixedly installed at the top of the adsorption tower cover (2), and the rotary control motor (701) is connected to the connecting shaft (702). One end of the connecting shaft (702) extends to the inside of the adsorption tower cover (2), and the end is fixedly provided with a support plate (703). The support plate (703) and the installation docking plate (704) are fixedly connected by bolts. The installation docking plate (704) is fixedly connected to the support shaft body (705). One end of a bearing shaft (705) is fixedly provided. The bearing shaft (705) extends to the inner side of a frustum-shaped ring (606). Supporting elastic strips (706) are fixedly provided at equal intervals on the outer side wall of the bearing shaft (705). The supporting elastic strips (706) and the middle elastic strips (707) are fixedly connected by elastic mesh posts (709). The middle elastic strips (707) and the tail elastic strips (708) are fixedly connected by elastic mesh posts (709). Impurity removal and adsorption cotton (710) is provided in the elastic mesh posts (709). Auxiliary grooves (711) are provided at equal intervals on the outer side wall of the impurity removal and adsorption cotton (710). Auxiliary circular grooves (712) are provided at equal intervals in the auxiliary grooves (711). A mesh cleaning cone (713) is fixedly provided at one end of the tail elastic strip (708). Cleaning elastic barbs (714) are fixedly provided at equal intervals on the outer side wall of the mesh cleaning cone (713).

2. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 1, characterized in that: The purification auxiliary impurity removal mechanism (6) includes a connecting pipe body (601), a water supply pipe (602), a sewage discharge bottom pipe (603), an annular water storage pipe (604), an atomizing dust suppression nozzle (605), a frustum-shaped ring body (606), impurity removal filter holes (607), a support plate (608), and a mounting and fixing plate (609). The connecting pipe body (601) is symmetrically and fixedly equipped with annular sealing connecting plates (5) at both ends, and the top of the adsorption tower body (1) is also fixedly equipped with annular sealing connecting plates (5). The bottom of the adsorption tower cover (2) is also fixedly equipped with annular sealing connecting plates (5). One end of the connecting pipe body (601) is fixedly connected to the top of the adsorption tower body (1), and the other end of the connecting pipe body (601) is fixedly connected to the bottom of the adsorption tower cover (2). The annular sealing connecting plates (5) of the three are secured by fastening bolts. A water supply pipe (602) is connected to one side of the connecting pipe body (601), and a sewage discharge bottom pipe (603) is connected to the bottom side of the adsorption tower body (1). The annular water storage pipe (604) is fixedly installed on the inner wall of the connecting pipe body (601), and atomizing dust suppression nozzles (605) are equidistantly arranged on the annular water storage pipe (604). The frustum-shaped ring body (606) is installed in the adsorption tower body (1), and impurity removal filter holes (607) are equidistantly arranged on the frustum-shaped ring body (606). Support plates (608) are symmetrically fixedly arranged on the small port diameter side of the frustum-shaped ring body (606). An installation fixing plate (609) is fixedly arranged at one end of the support plate (608), and the installation fixing plate (609) is fixedly installed on the inner wall of the adsorption tower body (1) by screws.

3. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 2, characterized in that: The annular water storage pipe (604) and the water supply pipe (602) are positioned in the same location and have the same number of sets, and are connected to each other.

4. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 2, characterized in that: The small port of the frustum-shaped ring (606) faces upward and the large port faces downward, and the outer wall of the large port is adapted to fit and closely adhere to the inner wall of the adsorption tower body (1).

5. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 2, characterized in that: The impurity removal filter holes (607) are arranged in a ring at equal intervals on the frustum-shaped ring body (606) and are also arranged at equal intervals in the vertical direction. The impurity removal filter holes (607) and the frustum-shaped ring body (606) together form a frustum-shaped impurity removal cylinder.

6. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 1, characterized in that: The elastic mesh post (709) is composed of twelve elastic pieces. For the elastic piece set on the elastic mesh post (709) between the supporting elastic strip (706) and the intermediate elastic strip (707), one end is fixed on the supporting elastic strip (706) and the other end is fixed on the intermediate elastic strip (707). For the elastic piece set on the elastic mesh post (709) between the intermediate elastic strip (707) and the tail elastic strip (708), one end is fixed on the intermediate elastic strip (707) and the other end is fixed on the tail elastic strip (708).

7. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 6, characterized in that: The supporting elastic strip (706), the middle elastic strip (707), and the tail elastic strip (708) form an elastic support member, and the length of the elastic support member is set differently on the bearing shaft (705).

8. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 7, characterized in that: The tail end elastic strip (708) is positioned corresponding to the impurity removal filter hole (607) on the frustum-shaped ring (606); the diameter of the cone end of the mesh cleaning cone (713) is smaller than the diameter of the impurity removal filter hole (607), and the mesh cleaning cone (713) and the tail end elastic strip (708) are arranged in the same number of groups.

9. The hydrogen purification adsorption tower for propane dehydrogenation tail gas according to claim 1, characterized in that: The impurity removal and adsorption cotton (710) is configured as a column, and the length of the impurity removal and adsorption cotton (710) is less than the length of the elastic mesh column (709), the diameter of the impurity removal and adsorption cotton (710) is less than the diameter of the elastic mesh column (709), and the impurity removal and adsorption cotton (710) is movable in the inner cavity of the elastic mesh column (709).

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