Sector assembly of reforming reactor

Abstract

The present application is about a fan-shaped barrel assembly of a reforming reactor, belonging to the technical field of reforming reaction equipment. The fan-shaped barrel assembly provided by the present application, by arranging at least two concave fan-shaped barrels and at least two convex fan-shaped barrels, and making the concave fan-shaped barrel and the convex fan-shaped barrel spaced, the contact surface between adjacent concave fan-shaped barrels and the convex fan-shaped barrel is closely fitted, so that there is no gap between adjacent fan-shaped barrels, and the angle between the contact surface and the radial line of the fan-shaped barrel assembly is 8-20 degrees, so that the extension direction of the contact surface is inconsistent with the flow direction of the catalyst, reducing the possibility of the catalyst flowing into the contact surface, thereby eliminating the flow dead zone of the catalyst, strengthening the mobility of the raw material and the catalyst, reducing the filling amount of the catalyst, and then reducing the operating investment cost. At the same time, because the internal structure of the concave fan-shaped barrel and the convex fan-shaped barrel is welded, the structural strength of the fan-shaped barrel assembly is strong and the service life is long.

Description

Technical Field

[0001] The present application relates to the technical field of reforming reaction equipment, and in particular to a sector-shaped barrel assembly of a reforming reactor. Background Art

[0002] The reforming reactor is an important equipment in the continuous reforming reaction device. The core part of the reforming reactor includes the central tube and the fan-shaped tube assembly. Under the action of gravity, the catalyst in the common continuous reforming reactor passes through the top catalyst hopper, through the catalyst delivery pipe, and flows from top to bottom through the reactor bed.

[0003] The fan-shaped barrel is an important component inside the reforming reactor equipment in the continuous reforming device. It is installed on the inner wall of the reforming reactor and used in conjunction with the central tube of the reforming reactor to isolate the catalyst, allow the process medium to be evenly distributed, radially pass through the catalyst bed, and the product after the reaction enters the central tube and flows out of the reactor. The fan-shaped barrel and the central tube constitute the core part of the internal parts of the reforming reactor. The performance of the fan-shaped barrel determines the continuity of the reforming reactor operation and the quality of the uniform reaction of the medium. The above-mentioned fan-shaped barrel assembly operates at high temperature for a long time. High-temperature thermal expansion, sudden pressure drop, operation fluctuations and other factors are a test of the fan-shaped barrel structure. During the operation of the reforming reactor, if the fan-shaped barrel assembly has problems such as dents, cracks, and breakage, it will lead to greater catalyst consumption, local catalyst fluidization, and increased catalyst dust, which directly affects the production efficiency of the reforming unit, affects the quality of the product and the safe and stable operation of the downstream device, and is not conducive to the long-term operation of the device.

[0004] However, since the sector tubes are arranged inside the reactor, there are certain gaps between adjacent sector tubes, which form dead zones for the catalyst flow. These dead zones not only reduce the flow of raw materials, but also increase the filling amount of catalyst, thereby increasing the operating investment cost. Summary of the invention

[0005] The embodiment of the present application provides a sector-shaped barrel assembly of a reforming reactor, which can solve the problem that the currently commonly used sector-shaped barrel assembly increases the amount of catalyst filled in practice and increases the operating investment cost. The technical solution is as follows:

[0006] A sector-shaped barrel assembly of a reforming reactor is provided, the sector-shaped barrel assembly comprising: at least two concave sector-shaped barrels and at least two convex sector-shaped barrels;

[0007] The concave sector-shaped cylinder and the convex sector-shaped cylinder are arranged at intervals to form a cylindrical shape, the contact surfaces between adjacent concave sector-shaped cylinders and convex sector-shaped cylinders are closely fitted, and the angle between the contact surface and the radial line of the sector-shaped cylinder assembly is 8-20 degrees;

[0008] The concave sector-shaped cylinder comprises: a concave wall plate, a first light plate and a first wire mesh, wherein the first light plate is welded to the upper part of the concave wall plate, the first wire mesh is welded to the lower part of the concave wall plate, and the first light plate and the first wire mesh are welded and connected;

[0009] The convex sector-shaped cylinder comprises: a convex wall plate, a second light plate and a second wire mesh, wherein the second light plate is welded to the upper part of the convex wall plate, and the second wire mesh is welded to the lower part of the convex wall plate, and the second light plate and the second wire mesh are welded and connected.

[0010] In one possible design, the central angles corresponding to the inner walls of the concave sector-shaped cylinder and the convex sector-shaped cylinder are equal.

[0011] In a possible design, both the first wire mesh and the second wire mesh are V-shaped wire mesh structures.

[0012] In a possible design, the height of the first light panel and the second light panel is 500-1000 mm.

[0013] In a possible design, the concave wall plate and the first wire mesh are connected by argon arc welding;

[0014] The convex wall panel and the second wire mesh are connected by argon arc welding.

[0015] In a possible design, the concave wall plate and the first light plate are connected by argon arc welding;

[0016] The convex wall panel and the second light panel are connected by argon arc welding.

[0017] In a possible design, the concave wall panel and the convex wall panel are formed by bending stainless steel thin plates.

[0018] In a possible design, two vertical edges of the outer wall of the concave wall plate have first rounded corners, and two vertical edges of the outer wall of the convex wall plate have second rounded corners;

[0019] The radii of the first rounded corner and the second rounded corner are 4-30 mm.

[0020] In a possible design, the bottoms of the concave sector-shaped cylinder and the convex sector-shaped cylinder both have a slot;

[0021] The outer diameter of the clamping groove is smaller than the outer diameters of the concave sector-shaped cylinder and the convex sector-shaped cylinder.

[0022] In a possible design, the number of the concave sector-shaped cylinders and the number of the convex sector-shaped cylinders are both 8-10.

[0023] The fan-shaped barrel assembly provided by the present application is provided with at least two concave fan-shaped barrels and at least two convex fan-shaped barrels, and the concave fan-shaped barrels and the convex fan-shaped barrels are arranged at intervals, and the contact surfaces between the adjacent concave fan-shaped barrels and the convex fan-shaped barrels are closely fitted, so that there is no gap between the adjacent fan-shaped barrels, and the angle between the contact surface and the radial line of the fan-shaped barrel assembly is 8-20 degrees, so that the extension direction of the contact surface is inconsistent with the flow direction of the catalyst, reducing the possibility of the catalyst flowing into the contact surface, thereby eliminating the flow dead zone of the catalyst, strengthening the fluidity of the raw material and the catalyst, reducing the filling amount of the catalyst, and then reducing the operating investment cost. At the same time, because the internal structure of the concave fan-shaped barrel and the convex fan-shaped barrel is welded, the structural strength of the fan-shaped barrel assembly is strong and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural schematic diagram of a sector-shaped barrel assembly of a reforming reactor provided in an embodiment of the present application;

[0026] Figure 2 It is a structural schematic diagram of a contact surface in a sector-shaped cylinder assembly provided in an embodiment of the present application;

[0027] Figure 3 is a structural schematic diagram of a reforming reactor provided in an embodiment of the present application;

[0028] Figure 4 It is a structural schematic diagram of a concave sector-shaped cylinder 1 provided in an embodiment of the present application;

[0029] Figure 5 It is a schematic diagram of the AA structure of a concave sector-shaped cylinder 1 provided in an embodiment of the present application;

[0030] Figure 6 It is a structural schematic diagram of a convex sector-shaped cylinder 2 provided in an embodiment of the present application;

[0031] Figure 7 It is a schematic diagram of the BB structure of a convex sector-shaped tube 2 provided in an embodiment of the present application.

[0032] The descriptions of the various reference numerals in the accompanying drawings are as follows:

[0033] 1-Concave fan-shaped cylinder;

[0034] 11-Concave wall panel;

[0035] 12- first optical plate;

[0036] 13- first screen;

[0037] 14- first fillet;

[0038] 2-convex fan-shaped cylinder;

[0039] 21-convex wall panel;

[0040] 22- second optical plate;

[0041] 23- second screen;

[0042] 24- second fillet;

[0043] 3-Card slot;

[0044] 4- catalyst inlet;

[0045] 5-catalyst delivery pipe;

[0046] 6-Manhole;

[0047] 7-Oil and gas inlet;

[0048] 8-Oil and gas export;

[0049] 9- Sealing cover plate;

[0050] 10-support frame;

[0051] 101- catalyst outlet;

[0052] 102-center tube;

[0053] 103- radial line;

[0054] 104-angle. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0056] Figure 1 It is a structural schematic diagram of a sector-shaped barrel assembly of a reforming reactor provided in an embodiment of the present application;

[0057] Figure 2 is a structural schematic diagram of a contact surface in a sector-shaped cylinder assembly provided in an embodiment of the present application; see Figure 1 and Figure 2The fan-shaped cylinder assembly comprises: at least two concave fan-shaped cylinders 1 and at least two convex fan-shaped cylinders 2; the concave fan-shaped cylinders 1 and the convex fan-shaped cylinders 2 are arranged at intervals to form a cylindrical shape, the contact surfaces between adjacent concave fan-shaped cylinders 1 and convex fan-shaped cylinders 2 are closely fitted, and the angle 104 between the contact surface and the radial line 103 of the fan-shaped cylinder assembly is 8-20 degrees; the concave fan-shaped cylinder 1 comprises: a concave wall panel 11, a first light panel 12 and a first screen 13, the first The light plate 12 is welded to the upper part of the concave wall panel 11, the first wire mesh 13 is welded to the lower part of the concave wall panel 11, and the first light plate 12 and the first wire mesh 13 are welded to each other; the convex sector-shaped tube 2 includes: a convex wall panel 21, a second light plate 22 and a second wire mesh 23, the second light plate 22 is welded to the upper part of the convex wall panel 21, the second wire mesh 23 is welded to the lower part of the convex wall panel 21, and the second light plate 22 and the second wire mesh 23 are welded to each other.

[0058] See also Figure 2 The radial line 103 of the sector-shaped cylinder assembly is a ray extending outward from the center of the sector-shaped cylinder assembly, that is, the center line is perpendicular to the inner surfaces of the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2. The angle 104 between the contact surface and the radial line 103 of the sector-shaped cylinder assembly is 8-20 degrees, so that the contact surface is not perpendicular to the inner surfaces of the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2, so that the contact surfaces between the adjacent concave sector-shaped cylinders 1 and the convex sector-shaped cylinders 2 are tightly fitted.

[0059] Further, the above design prevents the catalyst from staying at the contact surface or leaking through the contact surface. For example, the angle 104 between the contact surface and the radial line 103 of the sector-shaped barrel assembly is 15 degrees, thereby facilitating design and processing.

[0060] In the above structure, the inner wall of the concave wall panel 11, the first light plate 12 and the first wire mesh 13 have the same width, and the inner wall of the convex wall panel 21, the second light plate 22 and the second wire mesh 23 have the same width, so that the inner surface of each fan-shaped cylinder has the same flow area, so that the medium flows evenly on the inner surface of the fan-shaped cylinder.

[0061] Furthermore, the inner wall of the concave wall plate 11 and the inner wall of the convex wall plate 21 are also the same, so that the flow area on each sector tube is the same.

[0062] Among them, for the inner wall of the concave wall panel 11 and the inner wall of the convex wall panel 21 with the same width, the size of the outer wall of the concave wall panel 11 is larger than the size of the inner wall of the convex wall panel 21, so that the outer wall of the concave wall panel 11 and the outer wall of the convex wall panel 21 can form a complete arc surface when they are welded together.

[0063] The working principle of the fan-shaped cylinder assembly is described below:

[0064] Figure 3 This is a schematic diagram of the structure of a reforming reactor provided in the embodiment of the present application, see Figure 3 The fan-shaped cylinder has openings in the upper and lower directions, and the outer wall of the fan-shaped cylinder is evenly distributed along the inner wall of the reforming reactor.

[0065] Specifically, the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2 are arranged and assembled around the inner wall of the reforming reactor in the order of concave and convex, that is to say: according to the order of concave sector-shaped cylinder 1, convex sector-shaped cylinder 2, concave sector-shaped cylinder 1, convex sector-shaped cylinder 2... and so on, until the last convex sector-shaped cylinder 2 is engaged with the first concave sector-shaped cylinder 1, so that the inner walls of the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2 are combined to form an overall circular isolation surface in contact with the catalyst.

[0066] The concave sector barrel 1 and the convex sector barrel 2 provided in the embodiment of the present application can be pre-assembled in the factory for at least one concave sector barrel 1 and at least one convex sector barrel 2, and transported in combination or separately according to the transportation requirements. The construction site can adopt on-site pre-assembly, and then hoist the sector barrel assembly as a whole; or each sector barrel can be hoisted separately and assembled inside the reactor. This structure solves the problem of large-scale sector barrel size, greatly reducing the difficulty of processing, transportation, on-site assembly and maintenance. At the same time, since the contact surface between the sector barrels has a certain strengthening effect on the sector barrel assembly, the strength of the sector barrel assembly and the reliability of normal operation are guaranteed, and the safety and stability of the operation of the reforming reactor are improved.

[0067] The above-mentioned sector-shaped tube assembly is used to load the catalyst, and the catalyst can exert pressure on each sector-shaped tube, thereby pressing the sector-shaped tube so that each sector-shaped tube is close to the inside of the reactor, and at the same time, the sector-shaped tubes are tightly combined so that the catalyst will not slip into the gaps between the sector-shaped tubes, thereby ensuring that the process medium passes through multiple equidistantly distributed catalyst beds, eliminating the flow dead zone of the catalyst on the sector-shaped tube assembly, thereby avoiding catalyst waste and reducing the catalyst loading amount.

[0068] The reforming reactor further includes a catalyst inlet 4 , a catalyst delivery pipe 5 , a manhole 6 , an oil and gas inlet 7 , an oil and gas outlet 8 , a sealing cover plate 9 , a support frame 10 , a catalyst outlet 101 and a central pipe 102 .

[0069] During the reaction, oil and gas enter from the large oil and gas inlet 7 at the top of the reforming reactor, move evenly in the upper cavity, and then enter the upper openings of the concave sector tube 1 and the convex sector tube 2. The oil and gas pass through the wire mesh, the catalyst bed, and the central tube 102 in turn, and finally flow out of the reforming reactor from the oil and gas outlet 8.

[0070] At the same time, the catalyst enters the catalyst material box from the catalyst inlet 4, and enters the reforming reactor under the guidance of the catalyst delivery pipe 5. Since the concave sector tube 1 and the convex sector tube 2 form an integral annular wire mesh plane, the integral annular wire mesh plane and the central tube 102 form a catalyst bed isolation surface, so that the oil and gas pass through the catalyst bed and participate in the reaction. After completing the catalytic action, the catalyst finally flows out from the catalyst outlet 101 at the lower part of the reforming reactor.

[0071] When it is necessary to inspect and repair the reforming reactor or dismantle the internal parts, the operator enters the interior of the reforming reactor through the manhole 6 .

[0072] The fan-shaped barrel assembly provided by the present application is provided with at least two concave fan-shaped barrels 1 and at least two convex fan-shaped barrels 2, and the concave fan-shaped barrels 1 and the convex fan-shaped barrels 2 are arranged at intervals, and the contact surfaces between the adjacent concave fan-shaped barrels 1 and the convex fan-shaped barrels 2 are closely fitted, so that there is no gap between the adjacent fan-shaped barrels, and the angle between the contact surface and the radial line 103 of the fan-shaped barrel assembly is 8-20 degrees, so that the extension direction of the contact surface is inconsistent with the flow direction of the catalyst, reducing the possibility of the catalyst flowing into the contact surface, thereby eliminating the flow dead zone of the catalyst, strengthening the fluidity of the raw material and the catalyst, reducing the filling amount of the catalyst, and then reducing the operating investment cost. At the same time, because the internal structure of the concave fan-shaped barrel 1 and the convex fan-shaped barrel 2 is welded, the structural strength of the fan-shaped barrel assembly is strong and the service life is long.

[0073] Furthermore, the above design can improve the technical problems of the existing sector-shaped cylinder due to the influence of harsh working environment, such as depression, cracking, damage, catalyst flow dead zone, etc.

[0074] The internal structure of the fan-shaped cylinder assembly is described in detail below:

[0075] In a possible design, the central angles corresponding to the inner walls of the concave sector tube 1 and the convex sector tube 2 are equal, wherein the central angle refers to: the angle between the two connecting surfaces between the two edge lines of the inner surface of each sector tube and the center line of the sector tube assembly. The above design can make the inner wall of each sector tube have the same flow area, so that the medium is evenly distributed during the flow process, so that the reaction can be carried out more fully; at the same time, the force-bearing area of ​​the inner wall of the concave sector tube 1 and the convex sector tube 2 can be roughly the same, so that the force of the concave sector tube 1 and the convex sector tube 2 is uniform, thereby improving the service life of the sector tube. In the above design, the central angle corresponding to each sector tube can be 10 to 30 degrees, and the size of the central angle corresponds to the number of sector tubes, so that the sum of the central angles of all sector tubes is 360 degrees. For example, the central angle corresponding to each sector tube can be 20 degrees, and accordingly, the sector tube assembly includes 18 sector tubes.

[0076] For the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2 having the same central angle, the outer wall size of the concave sector-shaped cylinder 1 is larger than the outer wall size of the convex sector-shaped cylinder 2.

[0077] In a possible design, the first wire mesh 13 and the second wire mesh 23 are both V-shaped wire mesh structures. The V-shaped wire mesh has a good filtering effect and can further prevent catalyst dust from blocking the fan-shaped cylinder assembly, thereby ensuring the safe and stable operation of the reforming reactor.

[0078] In a possible design, the height of the first light plate 12 and the second light plate 22 is 500-1000 mm. On the one hand, the height will not hinder the reaction; on the other hand, the first light plate 12 and the second light plate 22 form an annular whole, which cooperates with the outer side surface of the top of the central tube 102, and the petal thin plate is used to assemble a sealing structure between the two. The sealing structure can effectively seal the gap between the sector tube and the catalyst cover plate, thereby eliminating the flow dead zone of the catalyst and ensuring the smooth progress of the catalytic reaction.

[0079] In a possible design, the concave wall panel 11 and the first wire mesh 13 are connected by argon arc welding; the convex wall panel 21 and the second wire mesh 23 are connected by argon arc welding.

[0080] Argon arc welding refers to the use of argon gas to protect metal welding materials, and high current is used to melt the welding materials into liquid on the welded substrate to form a molten pool, so that the welded metal and the welding materials can achieve metallurgical bonding. The above-mentioned argon arc welding connection method is relatively firm and has good sealing performance. At the same time, it is not easy to form gaps, thereby reducing the flow dead zone of the catalyst.

[0081] Specifically, the argon arc welding between the concave wall panel 11 and the first wire mesh 13 can only weld the two side edges of the concave wall panel 11 and the first wire mesh 13, thereby saving welding energy and firmly connecting the two.

[0082] Furthermore, the first screen 13 is provided with a plurality of ribs arranged in a horizontal direction, which can strengthen the strength of the first screen 13, thereby improving the service life of the fan-shaped cylinder assembly. The ribs can be located between the first screen 13 and the concave wall plate 11, or can be located on the side of the first screen 13 away from the concave wall plate 11, which is not limited in this embodiment.

[0083] Specifically, the argon arc welding between the convex wall panel 21 and the second wire mesh 23 can only weld the two side edges of the convex wall panel 21 and the second wire mesh 23, thereby saving welding energy and firmly connecting the two.

[0084] Furthermore, the second screen 23 is provided with a plurality of ribs arranged in the horizontal direction, which can strengthen the strength of the second screen 23, thereby improving the service life of the fan-shaped cylinder assembly. The rib can be located between the second screen 23 and the convex wall plate 21, or can be located on the side of the second screen 23 away from the convex wall plate 21, which is not limited in this embodiment.

[0085] In a possible design, the concave wall panel 11 and the first light panel 12 are connected by argon arc welding; the convex wall panel 21 and the second light panel 22 are connected by argon arc welding. The argon arc welding connection method is relatively strong and has good sealing properties, and it is not easy to form gaps, thereby reducing the flow dead zone of the catalyst.

[0086] Specifically, the argon arc welding between the concave wall panel 11 and the first light plate 12 can only weld the two side edges of the concave wall panel 11 and the first light plate 12, thereby saving welding energy and firmly connecting the two.

[0087] At the same time, the argon arc welding between the convex wall panel 21 and the second light panel 22 can only weld the two side edges of the convex wall panel 21 and the second light panel 22, thereby saving welding energy and firmly connecting the two.

[0088] Furthermore, the bottom of the first light panel 12 and the top of the first wire mesh 13 can be connected by argon arc welding, and the bottom of the second light panel 22 and the top of the second wire mesh 23 can be connected by argon arc welding, so that the connection between the concave wall panel 11, the first light panel 12 and the first wire mesh 13 is tightened, and the connection between the convex wall panel 21, the second light panel 22 and the second wire mesh 23 is tightened.

[0089] In a possible design, the concave wall panel 11 and the convex wall panel 21 are formed by bending stainless steel thin plates, which is easy to shape and can make the overall mass of the sector-shaped cylinder lighter and thinner while still having a certain degree of rigidity and strength.

[0090] Specifically, the stainless steel sheet is first processed into a wall panel with a side wall having a slope of a preset angle, and then the stainless steel sheet is bent into an arc shape with a certain angle. The preset angle can be configured according to the design requirements of the concave wall panel 11 and the convex wall panel 21.

[0091] In a possible design, the two vertical edges of the outer wall of the concave wall plate 11 have first rounded corners 14, and the two vertical edges of the outer wall of the convex wall plate 21 have second rounded corners 24; the radii of the first rounded corners 14 and the second rounded corners 24 are 4-30 mm. For example, the first rounded corners 14 and the second rounded corners 24 can both be 10 mm.

[0092] The first fillet 14 and the second fillet 24 are in contact with the inner wall of the reactor, thereby facilitating the installation of the sector-shaped barrel.

[0093] In a possible design, the bottom of the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2 are both provided with a slot 3; the outer diameter of the slot 3 is smaller than the outer diameter of the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2. That is to say, the multiple slots 3 can be surrounded by a cylindrical stopper, which is used to be inserted into the support frame 10 at the bottom of the head of the reforming reactor, and the support frame 10 is used to support and fix the sector-shaped cylinder assembly, so that the sector-shaped cylinder assembly can only expand upward freely when subjected to the pressure of the catalyst and the medium, but cannot expand outward, so as to ensure that the sector-shaped cylinder assembly is in the designed position and will not be deformed.

[0094] In a possible design, the number of the concave sector barrel 1 and the convex sector barrel 2 are both 8-10, and the number of the concave sector barrel 1 and the convex sector barrel 2 are the same, so that the sector barrel is evenly stressed and the service life of the sector barrel is improved. For example, the number of the concave sector barrel 1 and the convex sector barrel 2 can be 9, that is, the sector barrel assembly includes 18 sector barrels. In the design process, the central angle corresponding to the sector barrel can be designed according to the number of sector barrels.

[0095] All the above optional technical solutions can be arbitrarily combined to form optional embodiments of the present application, which will not be described one by one here.

[0096] The fan-shaped barrel assembly provided by the present application is provided with at least two concave fan-shaped barrels 1 and at least two convex fan-shaped barrels 2, and the concave fan-shaped barrels 1 and the convex fan-shaped barrels 2 are arranged at intervals, and the contact surfaces between the adjacent concave fan-shaped barrels 1 and the convex fan-shaped barrels 2 are closely fitted, so that there is no gap between the adjacent fan-shaped barrels, and the angle between the contact surface and the radial line 103 of the fan-shaped barrel assembly is 8-20 degrees, so that the extension direction of the contact surface is inconsistent with the flow direction of the catalyst, reducing the possibility of the catalyst flowing into the contact surface, thereby eliminating the flow dead zone of the catalyst, strengthening the fluidity of the raw material and the catalyst, reducing the filling amount of the catalyst, and then reducing the operating investment cost. At the same time, because the internal structure of the concave fan-shaped barrel 1 and the convex fan-shaped barrel 2 is welded, the structural strength of the fan-shaped barrel assembly is strong and the service life is long.

[0097] Furthermore, the above design can improve the technical problems of the existing sector-shaped cylinder due to the influence of harsh working environment, such as depression, cracking, damage, catalyst flow dead zone, etc.

[0098] The central angles corresponding to the inner walls of the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2 are equal, so that the force-bearing areas of the inner walls of the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2 are roughly the same, so that the force on the concave sector-shaped cylinder 1 and the convex sector-shaped cylinder 2 is uniform, thereby improving the service life of the sector-shaped cylinder.

[0099] The groove 3 at the bottom of the sector-shaped cylinder forms a locking piece, which is used to be inserted into the support frame 10 at the bottom of the head of the reforming reactor. The support frame 10 is used to support and fix the sector-shaped cylinder assembly, so that the sector-shaped cylinder assembly can only expand freely upward when subjected to the pressure of the catalyst and the medium, but cannot expand outward, thereby ensuring that the sector-shaped cylinder assembly is in the designed position and will not be deformed.

[0100] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A sector-shaped barrel assembly of a reforming reactor, characterized in that: The sector-shaped cylinder assembly comprises: at least two concave sector-shaped cylinders (1) and at least two convex sector-shaped cylinders (2); The concave sector-shaped cylinder (1) and the convex sector-shaped cylinder (2) are arranged at intervals to form a cylindrical shape, the contact surfaces between adjacent concave sector-shaped cylinders (1) and convex sector-shaped cylinders (2) are tightly fitted, and the angle (104) between the contact surface and the radial line (103) of the sector-shaped cylinder assembly is 8-20 degrees; The concave sector-shaped cylinder (1) comprises: a concave wall plate (11), a first light plate (12) and a first wire mesh (13), wherein the first light plate (12) is welded to the upper part of the concave wall plate (11), and the first wire mesh (13) is welded to the lower part of the concave wall plate (11), and the first light plate (12) and the first wire mesh (13) are welded to each other; The convex sector-shaped cylinder (2) comprises: a convex wall plate (21), a second light plate (22) and a second wire mesh (23), wherein the second light plate (22) is welded to the upper part of the convex wall plate (21), the second wire mesh (23) is welded to the lower part of the convex wall plate (21), and the second light plate (22) and the second wire mesh (23) are welded to each other; The central angles corresponding to the arc lengths of the wire meshes of the concave sector-shaped cylinder (1) and the convex sector-shaped cylinder (2) are equal, the value range of the central angle is 10 to 30 degrees, and the size of the central angle corresponds to the sum of the number of the concave sector-shaped cylinders (1) and the convex sector-shaped cylinders (2); and the first wire mesh (13) and the second wire mesh (23) are both V-shaped wire mesh structures.

2. The fan-shaped cylinder assembly according to claim 1, characterized in that: The heights of the first light plate (12) and the second light plate (22) are 500-1000 mm.

3. The fan-shaped barrel assembly according to claim 1, characterized in that: The concave wall plate (11) and the first wire mesh (13) are connected by argon arc welding; The convex wall panel (21) and the second wire mesh (23) are connected by argon arc welding.

4. The fan-shaped cylinder assembly according to claim 1, characterized in that: The concave wall panel (11) and the first light panel (12) are connected by argon arc welding; The convex wall panel (21) and the second light panel (22) are connected by argon arc welding.

5. The fan-shaped barrel assembly according to claim 1, characterized in that: The concave wall panel (11) and the convex wall panel (21) are formed by bending stainless steel thin plates.

6. The fan-shaped cylinder assembly according to claim 1, characterized in that: The two vertical edges of the outer wall of the concave wall panel (11) have first rounded corners (14), and the two vertical edges of the outer wall of the convex wall panel (21) have second rounded corners (24); The radii of the first rounded corner (14) and the second rounded corner (24) are 4-30 mm.

7. The fan-shaped barrel assembly according to claim 1, characterized in that: The bottoms of the concave sector-shaped cylinder (1) and the convex sector-shaped cylinder (2) are both provided with a clamping groove (3); The outer diameter of the clamping groove (3) is smaller than the outer diameters of the concave sector-shaped cylinder (1) and the convex sector-shaped cylinder (2).

8. The fan-shaped barrel assembly according to claim 1, characterized in that: The number of the concave sector-shaped cylinders (1) and the number of the convex sector-shaped cylinders (2) are both 8-10.

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