CN216879280U - Barrel type reactor - Google Patents
Barrel type reactor Download PDFInfo
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- CN216879280U CN216879280U CN202220235099.3U CN202220235099U CN216879280U CN 216879280 U CN216879280 U CN 216879280U CN 202220235099 U CN202220235099 U CN 202220235099U CN 216879280 U CN216879280 U CN 216879280U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
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Abstract
Embodiments of the present application provide a cartridge reactor comprising a reactor shell and a heat exchange unit detachably mounted within the reactor shell; the reactor shell is provided with a reaction material inlet, a reaction product outlet, a heat exchange medium inlet and a heat exchange medium outlet; the heat exchange unit comprises a heat exchange cylinder, a heat exchange medium distributor and a heat exchange medium collector; filling spaces for filling the catalyst are formed between the adjacent heat exchange cylinders and between the heat exchange cylinders and the reactor shell, so that the filling and the discharging are convenient; a heat exchange cavity for circulating a heat exchange medium is formed in the heat exchange cylinder; the tubular reactor has a larger heat exchange area compared with the traditional tubular reactor, can efficiently exchange heat with reaction materials, and can set the number of the heat exchange tubes according to reaction requirements, thereby controlling the heat transfer efficiency between the reaction materials and a heat exchange medium.
Description
Technical Field
The utility model relates to the technical field of catalyst reactors, in particular to a cylindrical reactor.
Background
Industrial reaction processes are always accompanied by certain thermal effects, especially when the thermal effects of the reaction are large, heat transfer problems are often critical to reactor design and operation. For example, a hydrogen sulfide selective catalytic oxidation reaction, a methanol synthesis reaction, a fischer-tropsch synthesis reaction, a reaction for preparing dimethyl oxalate by oxidative coupling of carbon monoxide, or a strong exothermic reaction for preparing aviation kerosene by catalytic hydrogenation of carbon dioxide are often accompanied by a large number of side reactions, so that not only is the mechanism complex, but also a large amount of heat is released during the reaction, and the runaway temperature of the reactor is easily caused. Further, since a reaction system often contains a large amount of unstable compounds, and is flammable and explosive, and a large amount of bubbles are generated after decomposition, it is necessary to improve heat transfer efficiency, control the concentration of reactants, and prevent an excessive reaction.
The tubular reactor is one of the core devices widely used in the current industrial production, and has a series of advantages of simple structure, large specific surface area, high controllability, low on-line quantity, small back mixing and the like. The tubular reactor can effectively control the flow velocity in the tube, avoids the reaction from being too violent, but in the process of strong exothermic reaction, the tubular reactor still has the following defects:
in order to ensure the reaction efficiency, the pipe diameter of the tubular reactor is not too low, the heat exchange area is too small due to too low pipe diameter, and the bed layer is easy to generate overtemperature or overtemperature, so that the treatment capacity of a single tower is influenced. Moreover, the tubular reactor cannot control the heat transfer efficiency between the reaction material and the heat exchange medium.
In view of the above, there is a need to develop a new reactor for solving the above technical problems.
SUMMERY OF THE UTILITY MODEL
In view of the above technical problems, embodiments of the present invention provide a cartridge reactor capable of efficiently exchanging heat and controlling heat transfer efficiency.
The cylindrical reactor provided by the embodiment of the utility model comprises a reactor shell, wherein the reactor shell is provided with a reaction material inlet, a reaction product outlet, a heat exchange medium inlet and a heat exchange medium outlet which are communicated with the interior of the reactor shell; and a heat exchange unit detachably mounted in the reactor shell;
the heat exchange unit comprises a plurality of heat exchange cylinders which are nested from inside to outside, and a heat exchange medium distributor and a heat exchange medium collector which are respectively arranged at the upper end and the lower end of each heat exchange cylinder;
two adjacent heat exchange cylinders are arranged at intervals to define a first filling space between the two heat exchange cylinders, and the outermost heat exchange cylinder is arranged at intervals to define a second filling space between the outermost heat exchange cylinder and the inner side wall of the reactor shell; a heat exchange cavity for circulating a heat exchange medium is formed inside the heat exchange cylinder;
the heat exchange medium distributor is arranged between the heat exchange medium inlet and the heat exchange cylinders in a fluid communication mode, receives the inflow heat exchange medium from the heat exchange medium inlet and distributes the inflow heat exchange medium to each heat exchange cylinder;
the heat exchange medium collector is arranged between the heat exchange medium outlet and the heat exchange cylinders in a fluid communication mode, collects the heat exchange medium flowing out of each heat exchange cylinder and converges the collected heat exchange medium to the heat exchange medium outlet.
Optionally, the reactor shell comprises a cylindrical shell, and an upper end cover and a lower end cover detachably connected with the cylindrical shell, the reaction material inlet and the heat exchange medium outlet are arranged on the upper end cover, and the reaction product outlet and the heat exchange medium inlet are arranged on the lower end cover.
Optionally, the heat exchange cylinder comprises an annular top plate, an annular bottom plate and two cylindrical side plates which are coaxially arranged, and the annular top plate, the annular bottom plate and the two cylindrical side plates jointly enclose the heat exchange cavity.
Optionally, the heat exchange medium distributor is connected to the annular bottom plate through a connecting pipe, and the heat exchange medium collector is connected to the annular top plate through a connecting pipe.
Optionally, the connecting pipe is detachably connected to the heat exchange medium distributor, the heat exchange medium collector, the annular top plate, and the annular bottom plate.
Optionally, at least one of the annular top plate and the annular bottom plate is detachable.
Optionally, a support member is arranged at the bottom of the heat exchange cylinder, the annular bottom plate is detachably connected with the support member, the support member is detachably connected with the cylindrical shell, and the connecting pipe penetrates through the support member and is connected with the annular bottom plate.
Optionally, the heat exchange medium distributor and the heat exchange medium collector are of a hemispherical structure, and are detachably connected with the lower end cover and the upper end cover respectively.
Optionally, the heat exchange medium distributor and the heat exchange medium collector are communicated through a detachable central pipe; the heat exchange cylinders are concentrically and annularly arranged by taking the central pipeline as an axis.
Optionally, the heat exchanger further comprises an external heat exchange medium steam drum communicated with the heat exchange medium inlet and the heat exchange medium outlet.
One of the above technical solutions has the following beneficial effects: because a plurality of heat exchange cylinders which are nested from inside to outside are arranged in the reactor shell, compared with the traditional tubular reactor, the heat exchange area is increased, and high-efficiency heat exchange can be carried out between the heat exchange cylinders and reaction materials. And, because heat exchange unit detachably installs in the reactor shell, can set for heat exchange unit's heat transfer section of thick bamboo quantity according to the reaction demand to through changing heat transfer area, control the heat transfer efficiency between reaction material and the heat transfer medium, applicable in the narrower reaction system of reaction temperature window.
Another technical scheme in the above technical scheme has the following beneficial effects: because all parts of the heat exchange units such as the heat exchange cylinder, the heat exchange medium distributor, the heat exchange medium collector and the like can be detached, the reactor can be independently transported, assembled and disassembled, and is installed in a modularized manner, so that the flexibility of the reactor is improved, and the operation of assembling, disassembling, detecting, maintaining and the like by operators is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a heat exchange cartridge in an embodiment of the present invention;
FIG. 4 is a schematic connection diagram of an external heat exchange medium drum according to an embodiment of the present invention;
the figures in the drawings represent:
1. a reactor shell 11, a cylindrical shell 12, an upper end cover 13, a lower end cover 14, a reaction material inlet 15, a heat exchange medium outlet 16, a reaction product outlet 17 and a heat exchange medium inlet
2. Heat exchange unit 21, heat exchange cylinder 211, annular top plate 212, annular bottom plate 213, cylindrical side plate 214, heat exchange cavity 22, heat exchange medium distributor 23, heat exchange medium collector 24, central pipe 25, connecting pipe 26 and support member
31. First filling space 32 and second filling space
4. An external heat exchange medium steam drum.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, and are not intended to limit the present invention. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, particularly in the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
As shown in fig. 1 and 2, the embodiment of the present invention provides a cartridge type reactor, which comprises a reactor shell 1 and a heat exchange unit 2 detachably installed in the reactor shell 1.
The reactor shell 1 comprises a cylindrical shell 11, and an upper end cover 12 and a lower end cover 13 which are matched with the cylindrical shell 11, wherein the upper end cover 12 and the lower end cover 13 are detachably connected with the cylindrical shell 11 through flange connection, threaded connection or clamping connection and the like. The upper end cover 12 is provided with a reaction material inlet 14 and a heat exchange medium outlet 15, the lower end cover 13 is provided with a reaction product outlet 16 and a heat exchange medium inlet 17, and the reaction material inlet 14, the reaction product outlet 16, the heat exchange medium inlet 17 and the heat exchange medium outlet 15 are all in fluid communication with the inside of the cylindrical shell 11. Wherein, the heat exchange medium inlet 17 and the heat exchange medium outlet 15 are arranged oppositely, the reaction material inlet 14 and the reaction product outlet 16 are arranged oppositely, and the reaction material inlet 14 and the reaction product outlet 16 can form a certain angle with the reactor shell 1, so as to facilitate the transportation of the reaction material and the reaction product.
The heat exchange unit 2 comprises a plurality of heat exchange cylinders 21 which are concentrically and annularly nested from inside to outside, a heat exchange medium distributor 22 arranged at the lower end of the heat exchange cylinders 21 and a heat exchange medium collector 23 arranged at the upper end of the heat exchange cylinders 21. The specific structure of the heat exchange cylinder 21 is shown in fig. 3, and includes an annular top plate 211, an annular bottom plate 212, and two cylindrical side plates 213 coaxially arranged, and a heat exchange cavity 214 for circulating a heat exchange medium is enclosed by the annular top plate 211, the annular bottom plate 212, and the two cylindrical side plates 213. At least one of the annular top plate 211 and the annular bottom plate 212 is detachably connected with the cylindrical side plate 213 in a clamping manner and the like, so that an operator can conveniently overhaul and clean the heat exchange cylinder 21.
The plurality of heat exchange cylinders 21 are independent from each other, and two adjacent heat exchange cylinders 21 are spaced apart to define a first filling space 31 therebetween, and the outermost heat exchange cylinder 21 is spaced apart from the inner side wall of the reactor shell 1 to define a second filling space 32 therebetween. The catalyst can be directly filled in the first filling space 31 and the second filling space 32, so that the filling and the discharging are convenient, and various catalysts such as granular catalysts, felt catalysts and the like can be filled, so that the applicability is better.
The axis of the heat exchange cylinder 21 is provided with a central pipeline 24, the heat exchange medium distributor 22 and the heat exchange medium collector 23 are in fluid communication through the central pipeline 24, and both are detachably connected with the central pipeline 24 through clamping or threaded connection and the like. The heat exchange medium distributor 22 and the heat exchange medium collector 23 may have a hemispherical structure in which the heat exchange medium distributor 22 is detachably connected to the lower cap 13 by a fastening member such as a bolt or a flange and is in fluid communication with the heat exchange medium inlet 17. The heat exchange medium collector 23 is detachably connected to the upper end cap 12 by a fastening member such as a bolt or a flange, and is in fluid communication with the heat exchange medium outlet 15.
The heat exchange medium distributor 22 is connected to the annular bottom plate 212 of each heat exchange cartridge 21 through a connection pipe 25, respectively, so as to be in fluid communication with each heat exchange chamber 214. The heat exchange medium distributor 22 can receive the heat exchange medium flowing in from the heat exchange medium inlet 17 and uniformly distribute the heat exchange medium to each heat exchange cylinder 21.
The heat exchange medium collector 23 is connected to the annular top plate 211 of each heat exchange cartridge 21 through a connection pipe 25, respectively, so as to be in fluid communication with each heat exchange chamber 214. The heat exchange medium collector 23 can collect the heat exchange medium flowing out of each heat exchange cylinder 21 and convey the heat exchange medium to the heat exchange medium outlet 15.
The connecting pipe 25 is detachably connected with the heat exchange medium distributor 22, the heat exchange medium collector 23, the annular top plate 211 and the annular bottom plate 212 through fasteners such as bolts or flanges.
The bottom of the heat exchange tube 21 may be provided with a support member 26, and the support member 26 is provided with a through hole for the connection pipe 25 to pass through. The support member 26 is detachably connected to the cylindrical housing 11 by a fastener such as a lug, a bolt, or a flange, and the annular bottom plate 212 of the heat exchange tube 21 is also detachably connected to the support member 26 by a fastener such as a bolt or a flange, so that the heat exchange tube 21 and the catalyst are supported by the support member 26.
During reaction, the reaction material is conveyed into the reactor shell 1 through the reaction material inlet 14, flows through the shell pass and contacts with the catalyst between the heat exchange cylinders 21 to react, and the generated reaction product leaves the reactor shell 1 through the reaction product outlet 16. Meanwhile, the heat exchange media in the heat exchange cylinders 21 exchange heat with the catalyst to take away heat generated by reaction in the catalyst. The heat exchange medium after heat exchange is discharged from the heat exchange cylinder 21, collected by the heat exchange medium collector 23, and then discharged from the heat exchange medium outlet 15.
In addition, in summary, the heat exchange tubes 21, the heat exchange medium distributor 22, the heat exchange medium collector 23, the connecting pipes 25 and other parts in the reactor shell 1 can be disassembled, so that on one hand, the number, the height-width ratio and the thickness of the heat exchange tubes 21 can be set according to the reaction requirement, thereby adjusting the heat exchange area and controlling the heat transfer efficiency between the reaction materials and the heat exchange medium; on the other hand, the reactor can be independently transported, loaded and unloaded and is installed in a modularized mode, so that the flexibility of the reactor is improved, and meanwhile, the operation of loading, unloading, detection, maintenance and the like of operators is facilitated.
As shown in fig. 4, an external heat exchange medium steam drum 4 can be further arranged between the heat exchange medium inlet 17 and the heat exchange medium outlet 15, so that the grade of energy utilization can be improved, and the requirements for energy conservation and consumption reduction can be met.
The tubular reactor provided by the embodiment of the utility model is a continuous reactor, has a larger heat exchange area compared with the traditional tubular reactor, can efficiently exchange heat with reaction materials, and can be used for hydrogen sulfide selective catalytic oxidation reaction, methanol synthesis reaction, Fischer-Tropsch synthesis reaction, reaction for preparing dimethyl oxalate through carbon monoxide oxidative coupling or reaction for preparing aviation kerosene through carbon dioxide catalytic hydrogenation.
Taking the selective catalytic oxidation reaction of hydrogen sulfide as an example, a traditional tubular reactor is compared with a tubular reactor provided by the embodiment of the utility model. The device specifications and reaction data were calculated as shown in table 1, with a heat transfer medium of 170 ℃.
TABLE 1
It can be seen from the results in table 1 that for the selective catalytic oxidation reaction of hydrogen sulfide, the conversion rate of hydrogen sulfide in the tubular reactor provided by the embodiment of the present invention is significantly higher than that of the conventional tubular reactor under the same reaction conditions. And the quantity of heat exchange tube 21 is only 3 in the barrel reactor, compares with shell and tube reactor, has greatly simplified the inner structure of device, and the installation of being convenient for, dismantlement, maintenance can reach better reaction effect simultaneously again.
The principle and the implementation of the present invention are explained in the present text by applying specific examples, and the above description of the examples is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A cartridge reactor, comprising:
the reactor comprises a reactor shell, wherein a reaction material inlet, a reaction product outlet, a heat exchange medium inlet and a heat exchange medium outlet which are communicated with the interior of the reactor shell are arranged on the reactor shell; and
a heat exchange unit detachably mounted within the reactor shell;
the heat exchange unit comprises a plurality of heat exchange cylinders which are nested from inside to outside, and a heat exchange medium distributor and a heat exchange medium collector which are respectively arranged at the upper end and the lower end of each heat exchange cylinder;
two adjacent heat exchange cylinders are arranged at intervals to define a first filling space between the two heat exchange cylinders, and the outermost heat exchange cylinder is arranged at intervals to define a second filling space between the outermost heat exchange cylinder and the inner side wall of the reactor shell; a heat exchange cavity for circulating a heat exchange medium is formed inside the heat exchange cylinder;
the heat exchange medium distributor is arranged between the heat exchange medium inlet and the heat exchange cylinders in a fluid communication mode, receives the inflow heat exchange medium from the heat exchange medium inlet and distributes the inflow heat exchange medium to each heat exchange cylinder;
the heat exchange medium collector is arranged between the heat exchange medium outlet and the heat exchange cylinders in a fluid communication mode, collects the heat exchange medium flowing out of each heat exchange cylinder and converges the collected heat exchange medium to the heat exchange medium outlet.
2. The cartridge reactor according to claim 1, characterized in that: the reactor shell comprises a cylindrical shell, an upper end cover and a lower end cover, wherein the upper end cover and the lower end cover are detachably connected with the cylindrical shell, the reaction material inlet and the heat exchange medium outlet are formed in the upper end cover, and the reaction product outlet and the heat exchange medium inlet are formed in the lower end cover.
3. The cartridge reactor according to claim 2, characterized in that: the heat exchange cylinder comprises an annular top plate, an annular bottom plate and two cylindrical side plates which are coaxially arranged, and the annular top plate, the annular bottom plate and the two cylindrical side plates jointly enclose the heat exchange cavity.
4. The cartridge reactor according to claim 3, characterized in that: the heat exchange medium distributor is connected with the annular bottom plate through a connecting pipe, and the heat exchange medium collector is connected with the annular top plate through a connecting pipe.
5. The cartridge reactor according to claim 4, characterized in that: the connecting pipe is detachably connected with the heat exchange medium distributor, the heat exchange medium collector, the annular top plate and the annular bottom plate.
6. The cartridge reactor according to claim 5, wherein: at least one of the annular top plate and the annular bottom plate is detachable.
7. The cartridge reactor according to claim 6, characterized in that: the bottom of the heat exchange cylinder is provided with a supporting member, the annular bottom plate is detachably connected with the supporting member, the supporting member is detachably connected with the cylindrical shell, and the connecting pipe penetrates through the supporting member and is connected with the annular bottom plate.
8. The cartridge reactor according to claim 7, characterized in that: the heat exchange medium distributor and the heat exchange medium collector are of hemispherical structures and are detachably connected with the lower end cover and the upper end cover respectively.
9. The cartridge reactor according to claim 8, wherein: the heat exchange medium distributor is communicated with the heat exchange medium collector through a detachable central pipeline; the heat exchange cylinders are concentrically and annularly arranged by taking the central pipeline as an axis.
10. The cartridge reactor according to claim 1, characterized in that: the heat exchanger also comprises an externally hung heat exchange medium steam drum communicated with the heat exchange medium inlet and the heat exchange medium outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220235099.3U CN216879280U (en) | 2022-01-27 | 2022-01-27 | Barrel type reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220235099.3U CN216879280U (en) | 2022-01-27 | 2022-01-27 | Barrel type reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216879280U true CN216879280U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220235099.3U Active CN216879280U (en) | 2022-01-27 | 2022-01-27 | Barrel type reactor |
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| CN (1) | CN216879280U (en) |
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- 2022-01-27 CN CN202220235099.3U patent/CN216879280U/en active Active
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