Desulfurization device for preparing sulfide from hydrogen

Abstract

The utility model belongs to the technical field of desulfurization equipment, and particularly relates to a desulfurization device for preparing sulfide from hydrogen, which comprises a desulfurization tower and a boss on the outer side of the desulfurization tower, the fixing frame is located between the adjacent bosses of the middle reaction section of the desulfurization tower, is of a semi-circular structure, is coaxial with the desulfurization tower and is internally provided with an adsorbent filling mechanism, an opening groove is formed in the left side of the desulfurization tower and corresponds to the fixing frame, partition tables are fixed in the opening groove in a layered mode, and the fixing frame is located between the adjacent partition tables; a supporting frame parallel to the axis of the desulfurizing tower is arranged on the outer side of the boss, and guide rods extend out of the two end faces of the fixing frame and extend into the supporting frame. According to the utility model, a drawer type adsorbent replacement mechanism is formed by the layered fixing frames, the adsorbent replacement steps are simplified so as to shorten the shutdown time, and meanwhile, gas is uniformly dispersed in the adsorbents in different areas through a shunting structure at the bottom of the adsorbent filling mechanism, so that the problem of local advanced failure is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of desulfurization equipment technology, and in particular relates to a hydrogen-to-sulfurization desulfurization device. Background Technology

[0002] In hydrogen production processes, especially those using hydrocarbons (natural gas, naphtha, coal, etc.) as feedstock, such as steam methane reforming or coal gasification, "sulfide desulfurization" is a crucial pretreatment step. Its core objective is to remove various sulfur compounds, primarily hydrogen sulfide and organic sulfides, from the feedstock gas.

[0003] Currently, replacing the adsorbent in a traditional fixed bed requires shutting down the tower and depressurizing, which is a complicated and time-consuming process. In addition, the airflow distribution in a fixed bed is uneven, resulting in channeling and the formation of "high-speed channels" that cause local adsorbents to fail prematurely.

[0004] To address the aforementioned issues, this application proposes a hydrogen-to-sulfurization desulfurization apparatus. Utility Model Content

[0005] The purpose of this invention is to provide a hydrogen-to-sulfurization desulfurization device, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a hydrogen-to-sulfurization desulfurization device, including a desulfurization tower and a boss on its outer side;

[0008] The fixed frame, located between adjacent bosses in the middle reaction section of the desulfurization tower, is a semi-circular ring structure coaxial with the desulfurization tower and has an adsorbent filling mechanism inside. An opening slot is opened on the left side of the desulfurization tower corresponding to the fixed frame. A partition is fixed in layers in the opening slot. The fixed frame is located between adjacent partitions. A support frame parallel to the axis of the desulfurization tower is set on the outside of the boss. Guide rods extend from both ends of the fixed frame into the interior of the support frame.

[0009] The bottom of the adsorbent filling mechanism is provided with a flow divider plate, which is an inverted cone structure. Above the flow divider plate is a double-layer flow control plate, and adjacent flow control plates are connected by cone-shaped channels with openings at the top and bottom.

[0010] Preferably, the adsorbent filling mechanism consists of an interception layer, a main desulfurization layer, and a pretreatment layer, from top to bottom, with the pretreatment layer located above the flow control plate.

[0011] Preferably, a reinforcing column is fixedly connected between adjacent bosses, located on the front and rear sides of the desulfurization tower, and mating with the end face of the fixing frame.

[0012] Preferably, the right side of the reinforcing column has a protruding sleeve, and the guide rod passes through the inside of the protruding sleeve.

[0013] Preferably, both the upper and lower ends of the support frame are fixedly installed with telescopic control parts connected to the outer wall of the desulfurization tower, and the inner side of the support frame has protrusions that abut against the upper and lower surfaces of the guide rod, and positioning holes for the support rod to connect with the end of the guide rod are provided between adjacent protrusions.

[0014] Preferably, an inner frame is fixed to the inner side of the fixing frame, and the upper and lower surfaces and cross-sections are filled with side sealing parts through grooves.

[0015] Preferably, the inner layer of the inner frame is a circular ring structure, and the outer side of the circular ring structure, which is separate from the fixing frame, is filled with an outer sealing part that abuts against the inner wall of the desulfurization tower.

[0016] This utility model has the following beneficial effects:

[0017] This invention uses a layered, drawer-type adsorbent filling mechanism. When the adsorbent needs to be replaced, the built-in adsorption filling mechanism can be directly removed by separating the fixing frame, thus solving the problem of complicated shutdown and pressure relief procedures and enabling disassembly and replacement to be completed in a short time.

[0018] The bottom of the built-in adsorbent filling mechanism of this utility model adopts a double-layer guide plate structure, forming a conical flow channel between them. Combined with the diversion plate, the gas is evenly dispersed in the conical channel at different positions, thereby avoiding the gas forming a flow channel in a fixed area, which would cause the adsorbent in that area to fail prematurely. This ensures the full utilization of the adsorbent and reduces the frequency of adsorbent replacement.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the external structure of the desulfurization tower of this utility model;

[0023] Figure 3 This is a partially enlarged structural diagram of part A of this utility model;

[0024] Figure 4 This is a schematic diagram of the drawer-type adsorbent filling mechanism of this utility model;

[0025] Figure 5 This is a partial cross-sectional schematic diagram of the drawer-type adsorbent filling mechanism of this utility model;

[0026] The attached diagram lists the components represented by each number as follows:

[0027] In the picture:

[0028] 1. Desulfurization tower;

[0029] 11. Boss; 12. Support frame; 13. Fixing frame;

[0030] 101. Opening slot; 111. Partition; 112. Reinforcing column; 1121. Thrust sleeve;

[0031] 121. Protrusion; 122. Support rod; 123. Telescopic control unit;

[0032] 131. Inner frame; 132. Side sealing part; 133. Guide rod; 1331. Positioning hole; 134. Outer sealing part; 135. Interception layer; 136. Main desulfurization layer; 137. Pretreatment layer; 138. Flow control plate; 1381. Conical channel; 139. Diverter plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Please see Figure 1-5 As shown, this utility model is a hydrogen-to-sulfurization desulfurization device, including a desulfurization tower 1 and a boss 11 on its outer side;

[0036] The fixed frame 13 is distributed in layers between adjacent bosses 11 in the middle reaction section of the desulfurization tower 1. The fixed frame 13 is a semi-circular ring structure coaxial with the desulfurization tower 1 and has an adsorbent filling mechanism inside. A semi-circular opening slot 101 is opened on the left side of the desulfurization tower 1 corresponding to the fixed frame 13. The opening slot 101 is fixed in layers with partitions 111 to separate adjacent fixed frames 13 and strengthen the support. A support frame 12 parallel to the axis of the desulfurization tower 1 is provided on the outside of the bosses 11, with the upper and lower ends protruding to the other side of the bosses 11. Guide rods 133 extend from both ends of the fixed frame 13, pass through the support columns 112 on the left and right sides of the adjacent bosses and extend into the interior of the support frame 12. The left end face of the support column 12 is attached to both ends of the fixed frame 13. The holes inside the support column 112 are used to prevent the fixed frame 13 from tilting. The support frame 13 is fixed by the guide rods 133.

[0037] The bottom area of ​​the adsorbent filling mechanism is provided with a flow divider plate 139, which is an inverted cone structure with a honeycomb structure inside. Above the flow divider plate 139, a double-layer flow control plate 138 is provided. Adjacent flow control plates 138 are connected by a double-opening conical channel 1381 with a smaller upper part and a larger lower part. The gas is guided to the outer ring through the flow divider plate 139. Combined with the accumulation of the conical channel 1381, the gas is transported upward in different areas, so as to make full use of the adsorbent in different areas.

[0038] Furthermore, the adsorbent filling mechanism consists of an interception layer 135, a main desulfurization layer 136, and a pretreatment layer 137, arranged from top to bottom. The pretreatment layer 137 is located above the flow control plate 138 and is made of perforated alumina balls for pre-dust removal and airflow buffering. The main desulfurization layer 136 is made of zinc oxide adsorbent, and the interception layer 135 is made of a square metal sintered plate for intercepting dust.

[0039] Furthermore, a protruding sleeve 1121 protrudes from the right side of the reinforcing column 112, and a guide rod 133 passes through the inside of the protruding sleeve 1121 to increase the contact area, prevent the guide rod 133 from deflecting, and ensure that the fixing frame 13 moves on a fixed path.

[0040] Furthermore, both ends of the support frame 12 are fixedly installed with telescopic control parts 123 (using electric telescopic devices or other commercially available products that can drive the support frame 12 to slide in the front and back directions) that are connected to the outer wall of the desulfurization tower 1. Multiple protrusions 121 protrude from the inner side of the support frame 12, which abut against the upper and lower surfaces of the guide rod 133 to further enhance the support effect. A support rod 122 is also fixedly installed on the inner side of the support frame 12, located between adjacent protrusions 121, for connecting with the positioning hole 1331 at the end of the guide rod 133, thereby fixing the fixed frame 13.

[0041] Furthermore, an inner frame 131 is fixed to the inner side of the fixing bracket 13, and the upper and lower surfaces and cross sections are filled with side sealing parts 132 through grooves, forming an inner and outer double-layer sealing structure. The inner layer is an expanded graphite strip, and the outer layer is a spring-pressurized ceramic limiting pad to compensate for thermal deformation and form an inner and outer double-zone sealing structure.

[0042] Furthermore, the inner layer of the inner frame 131 is a circular structure. The outer side of the circular structure, which is separate from the fixing frame 13, is filled with an outer sealing part 134 that abuts against the inner wall of the desulfurization tower 1. The outer sealing part 134 is a composite of the two components of the side sealing part 132, and is used to seal the gap between the adsorbent filling mechanism and the inner wall of the desulfurization tower 1.

[0043] It is understood that this utility model simplifies the adsorbent replacement steps and reduces downtime by forming a drawer-type adsorbent replacement mechanism with a layered fixing frame 13. At the same time, the diversion structure at the bottom of the adsorbent filling mechanism allows the gas to be evenly dispersed in the adsorbent in different areas, thereby avoiding the problem of premature failure in certain areas.

[0044] A specific application of the operation process in this embodiment is as follows: When the adsorbent needs to be replaced, firstly, the support frame 12 is pushed out by the telescopic control part 123, so that the support rod 122 is separated from the positioning hole 1331, thereby releasing the limitation on the fixed frame 13. Then, the fixed frame 13 is directly pulled out by external mechanical equipment to complete the disassembly. Further, the guide rod 133 is aligned with the protrusion 1121 by external mechanical equipment and inserted, so that the inner frame 131 moves into the interior of the opening slot 101, and the edge position is sealed by the side sealing part 132. At the same time, the outer sealing part 134 forms a seal on the part in contact with the inner wall of the desulfurization tower 1. Then, the telescopic control part is extended. The control unit 123 pulls back the support frame 12, so that the support rod 122 passes through the positioning hole 1331 to form a positioning. At the same time, the protrusion 121 abuts against the upper and lower surfaces of the guide rod 133 to strengthen the support. After this arrangement, the installation is completed. When the gas flows upward, it is first diverted by the diversion plate 139 on the bottom inner side of the inner frame 131, and then enters the conical channel 1381 in different areas, thereby dispersing it in the pretreatment layer 137, the interception layer 135 and the main desulfurization layer 136 for adsorption treatment. This prevents the gas from concentrating in a fixed area and causing uneven use of adsorbent in different areas, thereby avoiding premature completion and shutdown for replacement.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hydrogen-to-sulfurization desulfurization apparatus, characterized in that: Includes the desulfurization tower (1) and the boss (11) on its outer side; The fixed frame (13) is located between adjacent bosses (11) in the middle reaction section of the desulfurization tower (1). It is a semi-circular ring structure coaxial with the desulfurization tower (1) and has an adsorbent filling mechanism inside. An opening slot (101) is opened on the left side of the desulfurization tower (1) corresponding to the fixed frame (13). A partition (111) is fixed in layers in the opening slot (101). The fixed frame (13) is located between adjacent partitions (111). A support frame (12) parallel to the axis of the desulfurization tower (1) is provided on the outside of the boss (11). Guide rods (133) extend from both ends of the fixed frame (13) into the interior of the support frame (12). The bottom of the adsorbent filling mechanism is provided with a flow divider plate (139), which is an inverted cone structure. A double-layer flow control plate (138) is provided above the flow divider plate (139), and a cone-shaped channel (1381) with openings at the top and bottom is connected between adjacent flow control plates (138).

2. The hydrogen production sulfide desulfurization apparatus according to claim 1, characterized in that: The adsorbent filling mechanism consists of an interception layer (135), a main desulfurization layer (136), and a pretreatment layer (137) from top to bottom. The pretreatment layer (137) is located above the flow control plate (138).

3. The hydrogen production sulfide desulfurization apparatus according to claim 1, characterized in that: A reinforcing column (112) is fixedly connected between adjacent bosses (11), located on the front and rear sides of the desulfurization tower (1), and docked to the end face of the fixed frame (13).

4. The hydrogen production sulfide desulfurization apparatus according to claim 3, characterized in that: The reinforcing column (112) has a protruding sleeve (1121) on its right side, and the guide rod (133) passes through the inside of the protruding sleeve (1121).

5. The hydrogen production sulfide desulfurization apparatus according to claim 4, characterized in that: Both ends of the support frame (12) are fixedly installed with telescopic control parts (123) connected to the outer wall of the desulfurization tower (1). The inner side of the support frame (12) has protrusions (121) that abut against the upper and lower surfaces of the guide rod (133). Between adjacent protrusions (121), there are support rods (122) that connect to the positioning holes (1331) at the end of the guide rod (133).

6. The hydrogen production sulfide desulfurization apparatus according to claim 1, characterized in that: The inner frame (131) is fixed to the inner side of the fixing frame (13), and the upper and lower surfaces and cross sections are filled with side sealing parts (132) through grooves.

7. The hydrogen production sulfide desulfurization apparatus according to claim 6, characterized in that: The inner layer of the inner frame (131) is a circular structure, and the outer side of the circular structure separated from the fixing frame (13) is filled with an outer sealing part (134) that abuts against the inner wall of the desulfurization tower (1).

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