CN220835454U - Air inlet distributor - Google Patents
Air inlet distributor Download PDFInfo
- Publication number
- CN220835454U CN220835454U CN202322311526.9U CN202322311526U CN220835454U CN 220835454 U CN220835454 U CN 220835454U CN 202322311526 U CN202322311526 U CN 202322311526U CN 220835454 U CN220835454 U CN 220835454U
- Authority
- CN
- China
- Prior art keywords
- catalyst
- isolation
- intake air
- air distributor
- nuts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003054 catalyst Substances 0.000 claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000002955 isolation Methods 0.000 claims description 30
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 241000282326 Felis catus Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 238000011049 filling Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The present utility model relates to an air intake distributor, comprising: the upper connecting pipe, the lower connecting pipe, the middle barrel part and the catalyst isolating part are assembled by a plurality of barrel sections, a groove is concavely arranged at the bottom of each barrel section, a convex part is convexly arranged at the top of each barrel section, each two barrel sections which are adjacent up and down are arranged in the groove of the barrel section above, the boss of the barrel section below is contained in the groove of the barrel section above and is connected with each other through a plurality of first fixing parts, the catalyst isolating part is assembled by a plurality of isolating frames, each two isolating frames which are adjacent up and down are connected through second fixing parts, each isolating frame is composed of a plurality of isolating frames which are distributed along the circumferential direction, each isolating frame is formed by welding a plurality of vertical flat steels and a plurality of transverse round steels, and nuts are welded by the vertical flat steels, and centering rods are arranged in the nuts, so that the filling quantity of the catalyst can be greatly improved.
Description
[ Field of technology ]
The utility model relates to the field of chemical machinery, in particular to an air inlet distributor.
[ Background Art ]
The reaction vessel is used for completing physical reaction and chemical reaction of a medium, and is used in industrial production, particularly in chemical industry, medicine industry, chemical fertilizer industry, refining industry and the like, and is used in a large amount as pressure-bearing equipment due to the technical requirement.
Referring to fig. 1, fig. 1 discloses a reaction vessel in the prior art, which comprises a cylinder 1 ', an upper sealing head 2 ', a lower sealing head 3 ', an upper tube plate 4 ', a lower tube plate 5 ' and a plurality of heat exchange tubes 6 ', wherein a tube pass inlet 7 ' and a tube pass outlet 8 ' are respectively arranged at the upper sealing head and the lower sealing head, a shell pass inlet 9 ' and a shell pass outlet 10 ' are respectively arranged on the cylinder 1 ', a tube pass medium is synthetic gas, and in order to accelerate the chemical reaction rate of the synthetic gas, a catalyst is added into the heat exchange tubes in the prior art, and the catalyst is arranged in the heat exchange tubes, wherein the defects are that: 1. the space in the heat exchange tube is limited, the space capable of containing the catalyst is small, so that the catalyst filling amount is small, in order to improve the catalyst filling amount, the whole equipment is enlarged in the prior art, but the production cost is increased, so that the economical efficiency is poor, 2, the catalyst is arranged in the heat exchange tube, and the flow-through property of a tube side medium is easily influenced due to the fact that the catalyst is blocked and invalid (namely, the catalyst is sintered) when the local temperature is too high.
Accordingly, there is a need to provide an intake air distributor that solves the above-mentioned technical problems.
[ utility model ]
In order to solve the above problems, an object of the present utility model is to provide an intake air distributor capable of increasing the catalyst loading.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an intake air distributor, comprising: the catalyst isolation piece is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions, each isolation frame is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions, a groove is concavely formed in the bottom of each cylinder section, a convex part is convexly arranged at the top of each cylinder section, a plurality of holes for synthesis gas to pass through are formed in each cylinder section, each of the two cylinder sections which are adjacent up and down, a boss of the cylinder section below is accommodated in the groove of the cylinder section above and connected with each other through a plurality of first fixing pieces, each catalyst isolation piece is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions, each isolation frame is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions through a second fixing piece, each isolation frame is formed by connecting a plurality of isolation frames in the circumferential direction, each isolation frame is formed by welding a plurality of vertical flat steels and a plurality of transverse round steels, nuts are welded on each vertical flat steel, and nuts are arranged in the nuts, and the outer sides of the whole catalyst screen mesh is welded on the outer sides of the isolation pieces.
Preferably, an intake air distributor in the present utility model is further provided with: the bottom of the catalyst isolation piece is supported on the lower connecting pipe through a support piece, and the support piece is connected with the catalyst isolation piece through a fourth fixing piece.
Preferably, an intake air distributor in the present utility model is further provided with: the top of the catalyst spacer is provided with a conical basket cover.
Preferably, an intake air distributor in the present utility model is further provided with: the second fixing piece and the fourth fixing piece are connecting pieces, bolts and nuts.
Preferably, an intake air distributor in the present utility model is further provided with: the first fixing piece and the third fixing piece are bolts and nuts.
Preferably, an intake air distributor in the present utility model is further provided with: one end of the centering rod is provided with a threaded section matched with the nut, and the other end of the centering rod is abutted against the middle barrel part.
Preferably, an intake air distributor in the present utility model is further provided with: the inner wall department of middle section of thick bamboo spare is equipped with a plurality of cat ladder spare.
Preferably, an intake air distributor in the present utility model is further provided with: the top of the middle barrel is welded with the upper connecting pipe, and the bottom of the middle barrel is connected with the lower connecting pipe through bolts and nuts.
Preferably, an intake air distributor in the present utility model is further provided with: the catalyst spacer is made of stainless steel material, and the middle barrel is made of high-strength steel.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the air inlet distributor structure is designed into a sectional assembly type structure, so that the catalyst can be arranged in a gap between the heat exchange pipes (namely in the shell pass), and compared with the prior art that the catalyst is arranged in the heat exchange pipes (namely in the tube pass), the catalyst filling amount can be greatly improved, and the problem of catalyst sintering in the prior art can be avoided.
[ Description of the drawings ]
FIG. 1 is a schematic structural view of a reaction vessel in the prior art.
Fig. 2 is a schematic diagram of a front view of an air intake distributor according to the present utility model.
Fig. 3 is a schematic top view of the air intake distributor according to the present utility model.
Fig. 4 is a partial enlarged view at a in fig. 2.
FIG. 5 is a schematic view of the connection structure of the catalyst spacer, the intermediate cartridge, and the downpipe.
Fig. 6 is a schematic view of the structure of a single spacer.
Fig. 7 is a schematic view of the structure of a single shell ring.
In fig. 1: 1 ', a cylinder body, 2', an upper sealing head, 3 ', a lower sealing head, 4', an upper tube plate, 5 ', a lower tube plate, 6', a heat exchange tube, 7 ', a tube side inlet, 8', a tube side outlet, 9 ', a shell side inlet, 10' and a shell side outlet.
Fig. 2 to 7: 1. the upper connecting pipe, 2, the lower connecting pipe, 3, the middle barrel part, 30, the barrel section, 300, the groove, 301, the convex part, 302, the first fixing part, 31, the ladder stand part, 4, the catalyst isolating part, 40, the isolating frame, 400, the isolating frame, 4000, the vertical flat steel, 4001, the transverse round steel, 4002, the nut, 4003, the centering rod, 4004, the thread section, 41, the second fixing part, 42, the third fixing part, 43, the conical basket cover, 44, the supporting part, 45 and the fourth fixing part.
[ Detailed description ] of the invention
An intake air distributor according to the present utility model will be described in further detail by way of specific examples.
Referring to fig. 2 to 7, an intake air distributor includes: the upper connecting pipe 1, the lower connecting pipe 2, and the middle barrel 3 and the catalyst spacer 4 arranged between the upper connecting pipe 1 and the lower connecting pipe 2, the catalyst spacer 4 is arranged on the outer side of the middle barrel 3, the middle barrel 3 is formed by stacking and assembling a plurality of barrel sections 30 along the up-down direction, in this embodiment, the number of the barrel sections 30 is 11, a groove 300 is concavely arranged at the bottom of each barrel section 30, a convex part 301 is convexly arranged at the top, a plurality of holes (not shown) for the synthetic gas to pass through are formed in each barrel section 30, in each two barrel sections 30 adjacent up and down, the boss 301 of the lower barrel section 30 is accommodated in the groove 300 of the upper barrel section 30 and is connected between the two through a plurality of first fixing pieces 302, in this embodiment, the first fixing pieces 302 are bolts and nuts. The inner wall of the middle barrel part 3 is provided with a plurality of ladder stand parts 31, thereby being convenient for workers to get in and out for maintenance. The top of the middle barrel part 3 is welded with the upper connecting pipe 1, and the bottom of the middle barrel part 3 is connected with the lower connecting pipe 2 through bolts and nuts. In the present embodiment, the intermediate barrel 3 is made of high-strength steel, so as to have high structural strength.
The catalyst isolating piece 4 is formed by stacking and assembling a plurality of isolating frames 40 along the up-down direction, the number of the isolating frames 40 is 11 in the embodiment, and the catalyst isolating piece 4 mainly has the function of isolating the catalyst from the middle barrel 3 so as to prevent the catalyst from blocking the holes on the middle barrel 3 and affecting the flow of the synthesis gas. Each two vertically adjacent isolation frames 40 are connected by a second fixing member 41, and in this embodiment, the second fixing member 41 is a connecting piece, a bolt, and a nut. Each of the separation frames 40 is composed of a plurality of separation frames 400 arranged in the circumferential direction, and in the present embodiment, each of the separation frames 40 is composed of six separation frames 400. The two adjacent spacers 400 are connected each other by a third fixing member 42, and in the present embodiment, the third fixing member 42 is a bolt or a nut. Each isolation frame 400 is formed by welding a plurality of vertical flat steels 4000 and a plurality of horizontal round steels 4001, a nut 4002 is welded on the vertical flat steels 4000, a centering rod 4003 is installed in the nut 4002, one end of the centering rod 4003 is provided with a threaded section 4004 matched with the nut 4002, and the other end of the centering rod 4003 is abutted against the middle barrel 3. The centering rod 4003 is used for ensuring concentricity of the middle cylinder 3 and the catalyst spacer 4, and a wire mesh (not shown) is spot-welded on the outer side of the whole catalyst spacer 4, and the wire mesh mainly serves to isolate the catalyst. The top of the catalyst spacer 4 is provided with a conical basket cover 43. The bottom of the catalyst spacer 4 is supported on the lower connecting pipe 2 through a support member 44, the support member 44 is connected with the catalyst spacer 4 through a fourth fixing member 45, and in this embodiment, the fourth fixing members 45 are connecting pieces, bolts and nuts. The catalyst spacer 4 is made of a stainless steel material.
In summary, the air inlet distributor structure is designed into a sectional assembly structure, so that the catalyst can be arranged in the gap between the heat exchange tubes (namely in the shell pass), and compared with the prior art that the catalyst is arranged in the heat exchange tubes (namely in the tube pass), the catalyst filling amount can be greatly improved, and the problem of sintering the catalyst in the prior art can be avoided.
The above-described embodiments are merely illustrative of the principles and functions of the present utility model, and some of the practical examples, not intended to limit the utility model; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present utility model.
Claims (9)
1. An intake air distributor, characterized by: comprising the following steps: the catalyst isolation piece is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions, each isolation frame is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions, a groove is concavely formed in the bottom of each cylinder section, a convex part is convexly arranged at the top of each cylinder section, a plurality of holes for synthesis gas to pass through are formed in each cylinder section, each of the two cylinder sections which are adjacent up and down, a boss of the cylinder section below is accommodated in the groove of the cylinder section above and connected with each other through a plurality of first fixing pieces, each catalyst isolation piece is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions, each isolation frame is formed by overlapping and assembling a plurality of isolation frames in the upper and lower directions through a second fixing piece, each isolation frame is formed by connecting a plurality of isolation frames in the circumferential direction, each isolation frame is formed by welding a plurality of vertical flat steels and a plurality of transverse round steels, nuts are welded on each vertical flat steel, and nuts are arranged in the nuts, and the outer sides of the whole catalyst screen mesh is welded on the outer sides of the isolation pieces.
2. An intake air distributor as claimed in claim 1, wherein: the bottom of the catalyst isolation piece is supported on the lower connecting pipe through a support piece, and the support piece is connected with the catalyst isolation piece through a fourth fixing piece.
3. An intake air distributor as claimed in claim 1, wherein: the top of the catalyst spacer is provided with a conical basket cover.
4. An intake air distributor as claimed in claim 2, wherein: the second fixing piece and the fourth fixing piece are connecting pieces, bolts and nuts.
5. An intake air distributor as claimed in claim 1, wherein: the first fixing piece and the third fixing piece are bolts and nuts.
6. An intake air distributor as claimed in claim 1, wherein: one end of the centering rod is provided with a threaded section matched with the nut, and the other end of the centering rod is abutted against the middle barrel part.
7. An intake air distributor as claimed in claim 1, wherein: the inner wall department of middle section of thick bamboo spare is equipped with a plurality of cat ladder spare.
8. An intake air distributor as claimed in claim 1, wherein: the top of the middle barrel is welded with the upper connecting pipe, and the bottom of the middle barrel is connected with the lower connecting pipe through bolts and nuts.
9. An intake air distributor as claimed in claim 1, wherein: the catalyst spacer is made of stainless steel material, and the middle barrel is made of high-strength steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311526.9U CN220835454U (en) | 2023-08-28 | 2023-08-28 | Air inlet distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311526.9U CN220835454U (en) | 2023-08-28 | 2023-08-28 | Air inlet distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220835454U true CN220835454U (en) | 2024-04-26 |
Family
ID=90776190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322311526.9U Active CN220835454U (en) | 2023-08-28 | 2023-08-28 | Air inlet distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220835454U (en) |
-
2023
- 2023-08-28 CN CN202322311526.9U patent/CN220835454U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |