Catalyst uniformly packed methanol shell-and-tube heat exchanger

Abstract

The application discloses a methanol column pipe heat exchanger with uniformly filled catalyst, which is applied to the field of heat exchangers and comprises a heat exchanger cylinder and a filling mechanism, wherein the filling mechanism comprises a storage assembly, a flow distribution assembly and a material falling assembly; the material falling assembly comprises a lead screw, a tension screw and a plurality of groups of connecting rods; one end of the lead screw is provided with a blind hole one; the tension screw is installed at the other end of the lead screw; the shaft of each connecting rod is provided with a threaded section; one end of each connecting rod without the threaded section is fixedly connected with a threaded rod; one end of each connecting rod close to the threaded section is provided with a blind hole two; the blind hole two between different groups of connecting rods is in threaded connection with the threaded rod; the threaded rod of one group of connecting rods is in threaded connection with the blind hole one; the shaft of the lead screw and the plurality of groups of connecting rods is in threaded connection with a taper ring; the inner hole wall of the taper ring is provided with a centripetal inclined surface; and the inside of the heat exchanger cylinder is uniformly provided with a plurality of heat exchange pipes. The application has the characteristics of realizing the uniform filling of the catalyst in the heat exchanger.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, specifically to a methanol tube heat exchanger with uniformly packed catalyst. Background Technology

[0002] Shell and tube heat exchangers are widely used in the industrial field to achieve heat exchange between two fluids without mixing. They are characterized by reliable structure, wide adaptability, and easy scale-up.

[0003] Methanol is a toxic compound. By using a shell-and-tube heat exchanger, which contains a catalyst inside the heat exchange tubes and heat transfer oil flowing through the shell side, the heat transfer oil stably supplies heat for the reaction, cracking methanol into hydrogen and achieving the clean utilization of methanol.

[0004] The uniformity of catalyst loading directly determines the operational stability of the heat exchanger. Uneven loading can easily lead to problems such as bed bridging, voids, resistance deviation, and airflow deviation, which in turn affect working efficiency. Under current technology, catalyst loading technology mostly adopts methods such as vibration compaction and manual knocking, but large-scale vibration and knocking can easily cause safety hazards and cannot meet the needs of large-scale industrial heat exchangers.

[0005] Therefore, how to achieve uniform packing of catalyst inside the heat exchanger has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a methanol tube heat exchanger with uniformly packed catalyst to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a methanol tube heat exchanger with uniformly filled catalyst, comprising a heat exchanger shell and a filling mechanism, wherein the filling mechanism comprises a storage component, a diversion component and a discharge component; The blanking assembly includes a lead screw, a tensioning screw, and several sets of connecting rods. One end of the lead screw has a blind hole, and the tensioning screw is installed at the other end of the lead screw. The shaft of the connecting rod has a threaded section, and the end without the threaded section is fixedly connected to a threaded rod. The end of the connecting rod near the threaded section has a blind hole. The blind holes of different sets of connecting rods are threaded to the threaded rods. The threaded rod of one set of connecting rods is threaded to the blind hole. The shafts of the lead screw and several sets of connecting rods are threaded with conical rings, and the inner wall of the conical ring is machined with a centripetal inclined surface. The heat exchanger cylinder is uniformly equipped with several heat exchange tubes. The storage assembly includes a storage hopper. A filter plate is bolted to the bottom of the storage hopper. Several filter hole groups are uniformly opened on the filter plate. Each filter hole group is composed of several filter holes. The positions of the filter hole groups correspond to the heat exchange tubes of each group. The flow distribution assembly includes a flow distribution bucket, and a throttling orifice plate is bolted to the inside of the flow distribution bucket. The throttling orifice plate has several through throttling holes, and each group of throttling holes corresponds to each group of heat exchange tubes.

[0008] According to the above technical solution, a feeding box is slidably connected to the upper end of the filter plate. The feeding box has an equipment cavity inside. Filter cavity one and filter cavity two are symmetrically opened on both sides of the equipment cavity. Filter cavity one has several discharge ports.

[0009] According to the above technical solution, the front and rear sides of the filter chamber one are evenly provided with through groove one and through groove two, and the front and rear sides of the filter chamber two are evenly provided with through groove three and through groove four. The structure of each set of through grooves is the same, and two sets of identical telescopic rods one are installed inside the equipment cavity.

[0010] According to the above technical solution, the output end of the telescopic rod is fixedly connected to a connecting rod, which is inserted into the first filter chamber and the second filter chamber. Several baffles are fixedly installed on the structure of the connecting rod in each group of filter chambers. The structural size of the baffles is larger than that of each group of through grooves. A motor is fixedly connected above the storage hopper, and the output end of the motor is fixedly connected to the feeding box.

[0011] According to the above technical solution, a sealing plate is provided above the throttling orifice plate. The upper end of the sealing plate is attached to the bottom end of the filter plate. The sealing plate is slidably connected to the inner wall of the diversion hopper. A boss is machined on the upper end of the sealing plate. The boss passes through the filter plate and is bolted to the feed box. A through hole is machined on the boss, which communicates with the equipment cavity. The diversion hopper and the storage hopper are bolted together.

[0012] According to the above technical solution, the sealing plate is provided with a guide port coaxial with the discharge port in the first filter chamber. A discharge pipe is installed at the end of the guide port away from the filter plate. A notch is provided on the shaft of the discharge pipe. Each group of filter holes is aligned with each group of guide ports.

[0013] According to the above technical solution, a partition plate is slidably connected inside the notch of the discharge pipe, and a battery and several sets of telescopic rods are fixedly installed on the side of the sealing plate away from the filter plate. The output end of each set of telescopic rods is fixedly connected to the partition plate.

[0014] According to the above technical solution, the battery is electrically connected to the first telescopic rod and the second telescopic rod, wherein a portion of the circuit is connected to the first telescopic rod through a through hole, and a rubber guide tube is fixedly installed at the end of the throttling orifice away from the sealing plate.

[0015] According to the above technical solution, a positioning mechanism is provided on the outside of the filling mechanism. The positioning mechanism includes a hinge and a positioning frame. The hinge flaps are fixedly connected to the heat exchanger cylinder and the storage hopper, respectively.

[0016] According to the above technical solution, the positioning frame is L-shaped, the short side of the positioning frame is fixedly connected to the heat exchanger shell, the long side of the positioning frame is parallel to the central axis of the heat exchanger shell, the long side of the positioning frame is provided with a threaded hole, a screw is screwed into the threaded hole, and a positioning plate is installed at the end of the screw facing the central axis of the heat exchanger shell.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting a feeding component, realizes the catalyst particles sliding down layer by layer inside the heat exchange tube, reduces the feeding speed of the catalyst particles, and eliminates bridging and voids between catalyst particles; by setting a storage component, multi-stage screening of catalyst particle size is realized, further improving reaction efficiency; by setting a diversion component, the screening catalyst particles are guided, improving working accuracy. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a half-sectional schematic diagram of the present invention; Figure 3 This is a half-section front view schematic diagram of the present invention; Figure 4 This is a schematic diagram of the material storage component structure of the present invention; Figure 5 This is an exploded schematic diagram of the feeding box of the present invention; Figure 6 This is an exploded view of the shunt assembly of the present invention; Figure 7 This is a bottom view of the diversion component of the present invention; Figure 8 This is a schematic diagram of the material feeding assembly installation of the present invention; Figure 9 This is a schematic diagram of the connecting rod structure of the present invention; Figure 10This is a schematic diagram of the working state of the present invention; Figure 11 This is a schematic diagram of the hinge rotation of the present invention; In the diagram: 1. Heat exchanger shell; 2. Heat exchange tube; 3. Storage assembly; 31. Storage hopper; 32. Filter plate; 33. Filter hole assembly; 34. Feed box; 341. Equipment cavity; 342. Filter cavity one; 343. Filter cavity two; 344. Discharge port; 35. Through groove one; 36. Through groove two; 37. Through groove three; 38. Through groove four; 39. Telescopic rod one; 4. Connecting rod; 41. Baffle; 5. Diversion assembly; 51. Diversion hopper; 52. 53. Throttling orifice plate; 54. Throttling orifice; 55. Sealing plate; 56. Boss; 57. Guide port; 68. Discharge pipe; 59. Guide pipe; 60. Material discharge assembly; 61. Screw; 62. Tensioning screw; 63. Connecting rod; 64. Blind hole one; 65. Threaded rod; 66. Blind hole two; 67. Conical ring; 7. Motor; 8. Partition plate; 9. Telescopic rod two; 10. Battery; 11. Hinge; 12. Positioning frame; 13. Screw; 14. Positioning plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-3 The present invention provides a technical solution: a methanol tube heat exchanger with uniformly filled catalyst, comprising a heat exchanger body 1 and a filling mechanism. A plurality of heat exchange tubes 2 are uniformly installed inside the heat exchanger body 1. A filter structure (not shown in the figure) is installed at the bottom of each heat exchange tube 2. A plurality of ceramic balls (not shown in the figure) are stacked at the upper end of the filter structure. The filter structure is used to support the ceramic balls, and the ceramic balls are used to support and protect the catalyst. The filter structure is connected to the subsequent collection equipment. Both the ceramic balls and the filter structure are existing technologies.

[0021] Please see Figures 3-5 The filling mechanism includes a storage component 3, a diversion component 5, and a discharge component 6.

[0022] The storage assembly 3 includes a storage hopper 31, and a filter plate 32 is bolted to the bottom of the storage hopper 31. Several filter hole groups 33 are evenly opened on the filter plate 32. Each filter hole group 33 is composed of several filter holes, and the positions of the filter hole groups 33 correspond to the heat exchange tubes 2 of each group.

[0023] The upper end of the filter plate 32 is slidably connected to a feeding box 34. The feeding box 34 has an equipment cavity 341 inside. The equipment cavity 341 has a first filter cavity 342 and a second filter cavity 343 symmetrically opened on both sides. The first filter cavity 342 has several discharge ports 344.

[0024] The front and rear sides of the filter chamber 342 are evenly provided with through groove 35 and through groove 36, respectively. The front and rear sides of the filter chamber 343 are evenly provided with through groove 37 and through groove 4, respectively. The structure of each group of through grooves is the same.

[0025] The equipment cavity 341 is equipped with two sets of identical telescopic rods 39, which are existing technologies and include two sets of output ends facing opposite directions.

[0026] The output end of the telescopic rod 39 is fixedly connected to the connecting rod 4. The connecting rod 4 is inserted into the filter chamber 342 and the filter chamber 343. Several baffles 41 are fixedly installed on the structure of the connecting rod 4 in each filter chamber. The structural size of the baffles 41 is larger than that of each through groove.

[0027] A motor 7 is fixedly connected above the storage hopper 31, and the output end of the motor 7 is fixedly connected to the feeding box 34.

[0028] Please see Figures 6-7 The diversion assembly 5 includes a diversion hopper 51. A throttling orifice plate 52 is bolted to the inside of the diversion hopper 51. The throttling orifice plate 52 has several through throttling holes 53. Each group of throttling holes 53 corresponds to a group of heat exchange tubes 2. A sealing plate 54 is provided above the throttling orifice plate 52. The upper end of the sealing plate 54 is attached to the bottom end of the filter plate 32. The sealing plate 54 is slidably connected to the inner wall of the diversion hopper 51. A boss 541 is machined on the upper end of the sealing plate 54. The boss 541 passes through the filter plate 32 and is bolted to the feeding box 34. A through hole is machined on the boss 541, which connects to the equipment cavity 341. The diversion hopper 51 and the storage hopper 31 are bolted together.

[0029] The sealing plate 54 has a guide port 55 coaxial with the discharge port 344 in the filter chamber 342. The end of the guide port 55 away from the filter plate 32 is equipped with a discharge pipe 56. The shaft of the discharge pipe 56 has a notch. Each group of filter holes 33 is aligned with each group of guide ports 55.

[0030] Please see Figure 7 A partition plate 8 is slidably connected inside the notch of the discharge pipe 56. A battery 10 and several sets of telescopic rods 9 are fixedly installed on the side of the sealing plate 54 away from the filter plate 32. The output end of each set of telescopic rods 9 is fixedly connected to the partition plate 8.

[0031] Battery 10 is electrically connected to telescopic rod 39 and telescopic rod 2 9 to provide power, with some of the circuits connected to telescopic rod 39 through through holes.

[0032] A rubber guide tube 57 is fixedly installed at the end of the throttling orifice 53 away from the sealing plate 54.

[0033] Please see Figure 8 The feeding assembly 6 includes a lead screw 61, a tensioning screw 62, and several sets of connecting rods 63. One end of the lead screw 61 is machined with a blind hole 64, and the tensioning screw 62 is installed at the other end of the lead screw 61. The shaft of the connecting rod 63 is machined with a threaded section, and the end without the threaded section is fixedly connected to a threaded rod 65. The end of the connecting rod 63 near the threaded section is machined with a blind hole 66. The blind holes 66 between different sets of connecting rods 63 are threadedly connected to the threaded rods 65. The threaded rod 65 of one set of connecting rods 63 is threadedly connected to the blind hole 64. The total length of the lead screw 61 and several sets of connecting rods 63 is greater than 2 / 3 of the length of the heat exchange tube 2.

[0034] A conical ring 67 is threaded onto the shaft of the lead screw 61 and several sets of connecting rods 63. The inner wall of the conical ring 67 is machined with a centripetal inclined surface.

[0035] Please see Figure 1 and Figure 9 The loading mechanism is externally equipped with a positioning mechanism, which includes a hinge 11 and a positioning frame 12. The hinge 11 is fixedly connected to the heat exchanger shell 1 and the storage hopper 31 respectively. The positioning frame 12 is L-shaped. The short side of the positioning frame 12 is fixedly connected to the heat exchanger shell 1, and the long side of the positioning frame 12 is parallel to the central axis of the heat exchanger shell 1. The long side of the positioning frame 12 is provided with a threaded hole, and a screw 13 is screwed into the threaded hole. A positioning plate 14 is installed at the end of the screw 13 facing the central axis of the heat exchanger shell 1.

[0036] Example 1: The storage hopper 31 is driven to rotate around the hinge axis by the hinge 11 (e.g., Figure 11 As shown), the storage hopper 31 drives the diversion hopper 51 to move synchronously, realizing the switching of the object connected to the heat exchanger shell 1. When the storage hopper 31 and the diversion hopper 51 are moved away from the heat exchanger shell 1 by the hinge 11 (as shown), Figure 11 As shown in the figure, a material feeding assembly 6 is installed inside each group of heat exchange tubes 2.

[0037] Specifically, when the storage hopper 31 and the diversion hopper 51 are moved away from the heat exchanger cylinder 1 by the hinge 11, the upper end of the heat exchange tube 2 is in an open state. According to the length of the heat exchange tube 2, the operator connects the lead screw 61 and several sets of connecting rods 63 by thread to ensure that the length of the material discharge assembly 6 is greater than 2 / 3 of the length of the heat exchange tube 2. The assembled material discharge assembly 6 is inserted into the heat exchange tube 2, and the tensioning screw 62 is tightened so that the tensioning screw 62 presses against the inner wall of the heat exchange tube 2. Thus, the material discharge assembly 6 is fixed by the friction between the tensioning screw 62 and the heat exchange tube 2.

[0038] Example 2: When the storage hopper 31 and the diversion hopper 51 are connected to the heat exchanger cylinder 1 by the hinge 11, the catalyst is uniformly loaded through the storage assembly 3, the diversion assembly 5 and the discharge assembly 6.

[0039] Example 2a: The operator feeds catalyst particles into the storage hopper 31. Since the upper end of the sealing plate 54 is attached to the bottom end of the filter plate 32, the filter hole group 33 is closed by the sealing plate 54. At this time, the catalyst particles cannot fall into the diversion hopper 51 through the filter hole group 33.

[0040] Activate each set of telescopic rods 29, which in turn move the partition plate 8, causing it to move along the notch towards the discharge pipe 56, thereby closing the discharge pipe 56. Activate each set of telescopic rods 139, whose output ends move the connecting rod 4, which in turn moves each set of baffles 41, causing them to move away from the through grooves, thus connecting the filter chambers to the outside of the feeding box 34. By controlling the stroke of the baffles 41, the size of the through grooves can be controlled. Activate motor 7, which in turn rotates the feeding box 34, causing the closing plate 54 to rotate synchronously.

[0041] During rotation, the feeding box 34 pushes the catalyst, and the baffle 41 restricts the size of each set of through grooves, thereby screening the size of the catalyst and preventing unqualified catalysts from affecting the catalytic effect, and further improving the reaction efficiency.

[0042] After screening, the screened catalysts accumulate inside the filter chamber 342. The motor 7 controls the material feeding box 34 to rotate, so that the discharge port 344 is aligned with any filter hole group 33. The telescopic rod 9 controls the partition plate 8 to move away from the discharge pipe 56, so that the discharge pipe 56 is unblocked. The catalysts of qualified size fall into the discharge pipe 56 through the filter hole group 33. Since each group of filter hole groups 33 is aligned with each group of guide ports 55, the catalyst falls into the guide pipe 57 along the discharge pipe 56 and then into the heat exchange tube 2 along the guide pipe 57.

[0043] The catalyst falls into the heat exchange tube 2 and accumulates on the top of the ceramic balls. During this process, the catalyst particles slide down layer by layer along the conical ring 67 to the bottom of the heat exchange tube 2. Multiple sets of conical rings 67 with the same distance between them reduce the falling speed of the catalyst particles in stages, eliminate bridging and voids between catalyst particles, realize vibration-free loading of the catalyst, and ensure that the catalyst is packed tightly.

[0044] Example 2b: When screening catalyst particles using the feeding box 34, due to the random shape and structure of the catalyst particles, some particles may be of unqualified size. During the process of being pushed by the feeding box 34, they enter the filter chamber 1 342 at a specific angle. For example, the end face of the long strip-shaped particles faces each group of through grooves during screening, causing the long strip-shaped particles to enter the filter chamber 1 342. For irregularly shaped particles, multi-stage screening is achieved using the filter chamber 2 343.

[0045] Specifically, the operator feeds the catalyst particles to one side of the feeding box 34, and the motor 7 drives the feeding box 34 to rotate, causing filter chamber one 342 to rotate away from the catalyst particles and filter chamber two 343 to rotate towards the catalyst particles. For example, Figure 9 As shown, motor 7 drives the feeding box 34 to rotate clockwise, so that the fourth through groove 38 first contacts the catalyst. The telescopic rod 39 controls each set of baffles 41 to adjust the size of each set of through grooves, so that the size of the through groove 48 is larger than that of the third through groove 37, the size of the third through groove 37 is larger than that of the first through groove 35, and the size of the first through groove 35 is larger than that of the second through groove 36.

[0046] The clearance dimension of the through-channel 35 is the maximum allowable size of the catalyst particle size, and the clearance dimension of the through-channel 36 is the minimum allowable size of the catalyst particle size.

[0047] As the feeding box 34 rotates, the filter chamber 2 343 first comes into contact with the catalyst particles. The through groove 4 38 and through groove 37 screen the catalyst twice in succession. The larger clearance size of through groove 4 38 and through groove 37 allows large particles to be screened out, avoiding the large particles from blocking the qualified particles from passing through the screen.

[0048] As the feeding box 34 rotates, the through groove 35 performs a third screening of the particles passing through the through groove 37, so that the catalyst particles that meet the requirements remain inside the filter chamber 342, and thus the catalyst is loaded through the operation in Example 2a.

[0049] Example 2c: By adjusting the spacing between each group of through-channels, the catalyst particles are screened in multiple stages. The clearance size of through-channel 37 and through-channel 48 is adjusted so that particles that do not meet the production requirements are screened out. The clearance size of through-channel 1 35 and through-channel 2 36 is adjusted so that particles with qualified size are further screened.

[0050] Specifically, the unblocking dimensions of the through-channel 35 and through-channel 36 are adjusted from small to large so that small and medium-sized particles in the qualified size particles leave the filter chamber 342, and large-sized particles are screened out. Through the operation in Example 2a, under the premise of qualified size, the large-sized catalyst is loaded first.

[0051] At this point, the qualified and unqualified particles of small and medium size are mixed again. Through the operation in Example 2b, the unqualified particles are screened out again. The unblocking size of the through-channel 35 and through-channel 36 is adjusted from small to large so that the medium-sized qualified particles are screened out. Then, the filling is carried out through the operation in Example 2a.

[0052] Repeat the above operations until the small-sized particles are screened out and filled, achieving graded filling of qualified catalyst particles. First, the largest particle size catalyst is filled, relying on its own weight to form a stable and rigid skeleton with multiple particle support points. There is no collapse or bridging at the bottom layer. Smaller particle size catalysts are then filled layer by layer. The upper layer particles naturally settle and embed into the gaps between the lower layer particles. The catalysts are interlocked and compacted, forming a continuous and dense bed from bottom to top, effectively improving the stability of the catalyst layer and increasing working efficiency.

[0053] Example 3: After the catalyst loading is completed, the operator uses hinge 11 to move the storage assembly 3 and the diversion assembly 5 away from the heat exchanger cylinder 1. Hot oil is introduced into the heat exchanger cylinder 1, and the hot oil conducts the high temperature to the inside of the heat exchange tube 2. The upper end of the heat exchanger cylinder 1 is connected to the methanol gas delivery pipe. Methanol gas is delivered from the upper end of the heat exchanger cylinder 1 into the inside of the heat exchange tube 2. The methanol gas comes into contact with the catalyst and absorbs heat to undergo catalytic reforming to generate hydrogen gas. The hydrogen gas passes through the ceramic balls and flows into the collection device to achieve hydrogen gas collection.

[0054] Furthermore, since the diversion hopper 51 and the storage hopper 31 are bolted together, the diversion hopper 51 can be disassembled when the storage assembly 3 and the diversion assembly 5 are far away from the heat exchanger cylinder 1. Since the filter plate 32 and the throttling orifice plate 52 are both bolted together, the filter plate 32 and the throttling orifice plate 52 can be replaced according to the specific layout of the heat exchange tube 2 to adapt to more heat exchangers. After the catalyst is loaded, the diversion assembly 5 can be removed. On the one hand, more operating space can be left for the methanol gas delivery pipe, and on the other hand, it can be used for other heat exchangers, further saving production costs.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A methanol tube-and-shell heat exchanger with uniformly packed catalyst, comprising a heat exchanger shell (1) and a filling mechanism, characterized in that: The filling mechanism includes a material storage component (3), a diversion component (5), and a material discharge component (6); The blanking assembly (6) includes a lead screw (61), a tensioning screw (62), and several sets of connecting rods (63). One end of the lead screw (61) is machined with a blind hole (64), and the tensioning screw (62) is installed on the other end of the lead screw (61). The shaft of the connecting rod (63) is machined with a threaded section, and the end without a threaded section is fixedly connected to a threaded rod (65). The end of the connecting rod (63) near the threaded section is machined with a blind hole (66). The blind holes (66) between different sets of connecting rods (63) are threadedly connected to the threaded rods (65). The threaded rods (65) of one set of connecting rods (63) are threadedly connected to the blind hole (64). A conical ring (67) is threadedly connected to the shaft of the lead screw (61) and several sets of connecting rods (63). The inner wall of the conical ring (67) is machined with a radial inclined surface. The heat exchanger cylinder (1) is uniformly equipped with several heat exchange tubes (2). The storage assembly (3) includes a storage hopper (31). The bottom of the storage hopper (31) is bolted to a filter plate (32). Several filter hole groups (33) are uniformly opened on the filter plate (32). Each filter hole group (33) is composed of several filter holes. The positions of the filter hole groups (33) correspond to the heat exchange tubes (2) of each group. The diversion assembly (5) includes a diversion bucket (51), and a throttling orifice plate (52) is bolted inside the diversion bucket (51). The throttling orifice plate (52) has several through throttling holes (53), and each group of throttling holes (53) corresponds to each group of heat exchange tubes (2).

2. The methanol tube-type heat exchanger with uniformly packed catalyst according to claim 1, characterized in that: The upper end of the filter plate (32) is slidably connected to a feeding box (34). The feeding box (34) has an equipment cavity (341) inside. The equipment cavity (341) has a first filter cavity (342) and a second filter cavity (343) symmetrically opened on both sides. The first filter cavity (342) has a plurality of discharge ports (344).

3. A methanol tube-type heat exchanger with uniformly packed catalyst according to claim 2, characterized in that: The first filter chamber (342) is provided with a through groove 1 (35) and a through groove 2 (36) evenly on the front and rear sides respectively. The second filter chamber (343) is provided with a through groove 3 (37) and a through groove 4 (38) evenly on the front and rear sides respectively. The structure of each set of through grooves is the same. The equipment cavity (341) is equipped with two sets of identical telescopic rods 1 (39).

4. A methanol tube-type heat exchanger with uniformly packed catalyst according to claim 3, characterized in that: The output end of the telescopic rod (39) is fixedly connected to a connecting rod (4). The connecting rod (4) is inserted into the first filter chamber (342) and the second filter chamber (343). Several baffles (41) are fixedly installed on the structure of the connecting rod (4) in each group of filter chambers. The structural size of the baffles (41) is larger than that of each group of through grooves. A motor (7) is fixedly connected above the storage hopper (31). The output end of the motor (7) is fixedly connected to the feeding box (34).

5. A methanol tube-and-shell heat exchanger with uniformly packed catalyst according to claim 4, characterized in that: A sealing plate (54) is provided above the throttling orifice plate (52). The upper end of the sealing plate (54) is attached to the bottom end of the filter plate (32). The sealing plate (54) is slidably connected to the inner wall of the diversion hopper (51). A boss (541) is machined on the upper end of the sealing plate (54). The boss (541) passes through the filter plate (32) and is bolted to the feed box (34). A through hole is machined on the boss (541) and the through hole connects to the equipment cavity (341). The diversion hopper (51) and the storage hopper (31) are bolted together.

6. A methanol tube-and-shell heat exchanger with uniformly packed catalyst according to claim 5, characterized in that: The closed plate (54) has a guide port (55) coaxial with the discharge port (344) in the first filter chamber (342). A discharge pipe (56) is installed at the end of the guide port (55) away from the filter plate (32). A notch is opened on the shaft of the discharge pipe (56). Each group of filter holes (33) is aligned with each group of guide ports (55).

7. A methanol tube-and-shell heat exchanger with uniformly packed catalyst according to claim 6, characterized in that: A partition plate (8) is slidably connected inside the notch of the discharge pipe (56). A battery (10) and several sets of telescopic rods (9) are fixedly installed on the side of the closed plate (54) away from the filter plate (32). The output end of each set of telescopic rods (9) is fixedly connected to the partition plate (8).

8. A methanol tube-and-shell heat exchanger with uniformly packed catalyst according to claim 7, characterized in that: The battery (10) is electrically connected to the first telescopic rod (39) and the second telescopic rod (9), with some of the lines connected to the first telescopic rod (39) through through holes. A rubber guide tube (57) is fixedly installed at the end of the throttling hole (53) away from the sealing plate (54).

9. A methanol tube-type heat exchanger with uniformly packed catalyst according to claim 8, characterized in that: The filling mechanism is provided with a positioning mechanism on its exterior. The positioning mechanism includes a hinge (11) and a positioning frame (12). The hinge (11) is fixedly connected to the heat exchanger cylinder (1) and the storage hopper (31) respectively.

10. A methanol tube-and-shell heat exchanger with uniformly packed catalyst according to claim 9, characterized in that: The positioning frame (12) is L-shaped. The short side of the positioning frame (12) is fixedly connected to the heat exchanger shell (1). The long side of the positioning frame (12) is parallel to the central axis of the heat exchanger shell (1). The long side of the positioning frame (12) is provided with a threaded hole. A screw (13) is screwed into the threaded hole. A positioning plate (14) is installed at one end of the screw (13) facing the central axis of the heat exchanger shell (1).

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