CN218485986U - Winding tube type oxidation reactor - Google Patents
Winding tube type oxidation reactor Download PDFInfo
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- CN218485986U CN218485986U CN202222780083.3U CN202222780083U CN218485986U CN 218485986 U CN218485986 U CN 218485986U CN 202222780083 U CN202222780083 U CN 202222780083U CN 218485986 U CN218485986 U CN 218485986U
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Abstract
The utility model provides a winding pipe type oxidation reactor, which comprises a shell, wherein the top end of the shell is provided with an oxide outlet; a center cylinder with a double-layer structure is fixedly arranged in the shell, and the bottom end of the center cylinder extends to the outside of the shell; the central cylinder comprises an outer cylinder and an inner cylinder, the top end and the bottom end of the outer cylinder are closed, the side wall of the outer cylinder is provided with a heat exchange medium inlet positioned outside the shell, and the bottom end of the inner cylinder is provided with a heat exchange medium outlet; a heat exchange tube is spirally wound outside the outer barrel, an inlet of the heat exchange tube is communicated with the outer barrel, and an outlet of the heat exchange tube is communicated with the top end of the inner barrel; and the side wall of the bottom end of the shell is provided with an oxidant inlet and a reactant inlet. By designing the double-layer central cylinder, the whole equipment does not need to use an upper pipe box and a lower pipe box, thereby greatly reducing the equipment volume and lowering the production cost; besides the function of fixing the heat exchange tube, the central tube is also used for circulating heat exchange media, so that the utilization rate of the central tube is improved.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field especially relates to a winding tubular oxidation reactor.
Background
The oxidation reaction refers to a chemical reaction between a substance and an oxidizing agent, and is mainly divided into air (oxygen) oxidation and chemical reagent oxidation according to the oxidizing agent and the oxidizing process. The chemical reagent oxidation has the advantages of good selectivity, simplicity, convenience and flexibility, and can be used in many chemical fields. The oxidation reactor is a very important reaction device in the process engineering. Because the reaction heat efficiency is high, the conversion rate is high and the medium cleaning degree is high in the reaction process, in order to meet the process requirements at the present stage, the central cylinders of the adopted wound tube type heat exchangers only play a role of fixing heat exchange tubes and do not serve as circulating pipelines of media, and the utilization rate of the central cylinders is low; the two ends of the heat exchange tube are connected with the upper tube box and the lower tube box by two tube plates, so that the equipment has larger volume and higher cost.
Disclosure of Invention
The utility model provides a winding tubular oxidation reactor has solved among the prior art problem that equipment is bulky, with high costs.
The technical scheme of the utility model is realized like this:
a winding pipe type oxidation reactor comprises a shell, wherein the top end of the shell is connected with a seal head, and an oxide outlet is formed in the seal head; the bottom end of the shell is provided with a cover plate; a center cylinder with a double-layer structure is fixedly arranged in the shell, and the bottom end of the center cylinder penetrates through the cover plate and extends to the outside of the shell; the central cylinder comprises an outer cylinder and an inner cylinder, the top end and the bottom end of the outer cylinder are closed, the side wall of the outer cylinder is provided with a heat exchange medium inlet positioned outside the shell, and the bottom end of the inner cylinder is provided with a heat exchange medium outlet; a heat exchange tube is spirally wound outside the outer barrel, an inlet of the heat exchange tube is communicated with the outer barrel, and an outlet of the heat exchange tube is communicated with the top end of the inner barrel; and the side wall of the bottom end of the shell is provided with an oxidant inlet and a reactant inlet.
By designing the double-layer central cylinder, the heat exchange medium enters the outer cylinder from the inlet, then flows into the heat exchange pipe to exchange heat with the mixture in the shell, and then flows into the inner cylinder and flows out from the heat exchange medium outlet; the whole equipment does not need an upper pipe box and a lower pipe box, so that the volume of the equipment is greatly reduced, and the production cost is reduced; besides, the central cylinder plays a role in fixing the heat exchange tube, and is also used for circulating a heat exchange medium, so that the utilization rate of the central cylinder is improved.
As a preferable scheme of the present invention, the bottom of the central tube is provided with a lower sealed cavity located inside the housing, the lower sealed cavity is communicated with the outer tube, the top surface of the lower sealed cavity is provided with an annular lower tube plate, and the inlet of the heat exchange tube is communicated with the lower sealed cavity through the lower tube plate; through setting up sealed chamber and urceolus intercommunication down, be convenient for install down the tube sheet with the urceolus with the entry intercommunication of heat exchange tube for the heat transfer medium in the urceolus can flow in the heat exchange tube smoothly.
As the preferable scheme of the utility model, the top of the central cylinder is provided with an upper sealing cavity which is communicated with the inner cylinder, the bottom surface of the upper sealing cavity is provided with an annular upper tube plate, and the outlet of the heat exchange tube is communicated with the upper sealing cavity through the upper tube plate; through setting up sealed chamber and inner tube intercommunication, be convenient for install the tube sheet and communicate the export of inner tube and heat exchange tube for the heat transfer medium in the heat exchange tube can flow into the inner tube smoothly.
As the preferable scheme of the utility model, the inside of the shell is provided with an annular uniform distribution pipe which is wound outside the bottom end of the heat exchange pipe; one end of the uniform distribution pipe is communicated with the oxidant inlet, and the outer wall of the uniform distribution pipe is provided with a plurality of through holes; the annular uniform distribution pipe is arranged, and the outer wall of the uniform distribution pipe is provided with the plurality of through holes, so that the uniformity of the distribution of the oxidant in the shell is improved, the oxidant and the reactant are more fully mixed, and the oxidation efficiency is improved; in addition, the uniform distribution pipe is wound outside the heat exchange pipe, so that the oxidant in the uniform distribution pipe can be preheated, and the oxidation efficiency is further improved.
As the utility model discloses preferred scheme, the bottom of casing is the toper, and the outside of toper casing is around being equipped with heating coil, through the outside at the toper casing around establishing heating coil, can preheat the reactant of the inside bottom of casing, has further promoted oxidation efficiency.
As the utility model discloses preferred scheme, the head passes through the flange with the casing top and can dismantle the connection, the inside washing and the maintenance of the casing of being convenient for.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) By designing the double-layer central cylinder, the heat exchange medium enters the outer cylinder from the inlet, then flows into the heat exchange pipe to exchange heat with the mixture in the shell, and then flows into the inner cylinder and flows out from the heat exchange medium outlet; the whole equipment does not need to use an upper pipe box and a lower pipe box, so that the volume of the equipment is greatly reduced, and the production cost is reduced; besides the function of fixing the heat exchange tube, the central cylinder is also used for circulating a heat exchange medium, so that the utilization rate of the central cylinder is improved;
(2) The utility model improves the uniformity of the distribution of the oxidant in the shell by arranging the annular uniform distribution pipe and arranging a plurality of through holes on the outer wall of the uniform distribution pipe, so that the oxidant and the reactant are more fully mixed, and the oxidation efficiency is improved; in addition, the uniform distribution pipes are wound outside the heat exchange pipes, so that the oxidant in the uniform distribution pipes can be preheated, and the oxidation efficiency is further improved;
(3) The utility model discloses a winding in the outside of toper casing and establishing heating coil, can preheat the reactant of casing inside bottom, further promoted oxidation efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the internal structure of a wound tube oxidation reactor according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial enlarged view of portion B of FIG. 1;
FIG. 4 is a schematic diagram of the external structure of a wound tube oxidation reactor according to the present invention;
in the figure: 1. a housing; 2. sealing the end; 3. an oxide outlet; 4. a cover plate; 5. an outer cylinder; 6. an inner barrel; 7. a heat exchange medium inlet; 8. a heat exchange medium outlet; 9. a heat exchange pipe; 10. an oxidant inlet; 11. a reactant inlet; 12. a lower sealed cavity; 13. a lower tube plate; 14. an upper sealed cavity; 15. an upper tube sheet; 16. uniformly distributing pipes; 17. a heating coil; 18. a flange.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below with reference to embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the embodiment provides a winding tube type oxidation reactor, which includes a housing 1, wherein a head 2 is connected to a top end of the housing 1, and an oxide outlet 3 is arranged on the head 2; the bottom end of the shell 1 is provided with a cover plate 4; a double-layer central cylinder is fixedly arranged in the shell 1, and the bottom end of the central cylinder penetrates through the cover plate 4 and extends to the outside of the shell 1; the central cylinder comprises an outer cylinder 5 and an inner cylinder 6, the top end and the bottom end of the outer cylinder 5 are closed, the side wall of the outer cylinder 5 is provided with a heat exchange medium inlet 7 positioned outside the shell 1, and the bottom end of the inner cylinder 6 is provided with a heat exchange medium outlet 8; a heat exchange tube 9 is spirally wound outside the outer barrel 5, a lower sealing cavity 12 positioned inside the shell 1 is arranged at the bottom of the central barrel, the lower sealing cavity 12 is communicated with the outer barrel 5, an annular lower tube plate 13 is arranged on the top surface of the lower sealing cavity 12, and an inlet of the heat exchange tube 9 is communicated with the lower sealing cavity 12 through the lower tube plate 13; an upper sealing cavity 14 is formed in the top of the central barrel, the upper sealing cavity 14 is communicated with the inner barrel 6, an annular upper tube plate 15 is arranged on the bottom surface of the upper sealing cavity 14, and an outlet of the heat exchange tube 9 is communicated with the upper sealing cavity 14 through the upper tube plate 15; the side wall of the bottom end of the shell 1 is provided with an oxidant inlet 10 and a reactant inlet 11.
In the embodiment, by designing a double-layer central cylinder, a heat exchange medium enters the outer cylinder 5 from an inlet, flows into the heat exchange tube 9 through the lower tube plate 13 of the lower sealing cavity 12 to exchange heat with a mixture in the shell 1, flows into the inner cylinder 6 through the upper tube plate 15 of the upper sealing cavity 14 and flows out from the heat exchange medium outlet 8; the whole equipment does not need to use an upper pipe box and a lower pipe box, so that the volume of the equipment is greatly reduced, and the production cost is reduced; besides, the central cylinder plays a role in fixing the heat exchange tube 9, and is also used for circulating a heat exchange medium, so that the utilization rate of the central cylinder is improved.
As a preferable scheme of this embodiment, an annular uniform distribution pipe 16 is arranged inside the shell 1, and the uniform distribution pipe 16 is wound outside the bottom end of the heat exchange pipe 9 (in this embodiment, two circles are wound together and have different diameters); one end of the uniform distribution pipe 16 is communicated with the oxidant inlet 10, and the outer wall of the uniform distribution pipe 16 is provided with a plurality of through holes (arranged in an array); by arranging the annular uniform distribution pipe 16 and arranging the plurality of through holes on the outer wall of the uniform distribution pipe 16, the uniformity of the distribution of the oxidant in the shell 1 is improved, so that the oxidant and the reactant are more fully mixed, and the oxidation efficiency is improved; in addition, the uniformly distributed tubes 16 are wound outside the heat exchange tubes 9, so that the oxidant in the uniformly distributed tubes 16 can be preheated, and the oxidation efficiency is further improved.
As shown in fig. 4, as a preferable configuration of this embodiment, the bottom of the shell 1 is conical, the heating coil 17 is wound outside the conical shell 1, and the heating coil 17 is wound outside the conical shell 1, so that the reactant at the bottom end inside the shell 1 can be preheated, and the oxidation efficiency is further improved.
As the preferred scheme of this embodiment, head 2 passes through flange 18 with casing 1 top and can dismantle and be connected, is convenient for tear off head 2 and washs or overhauls casing 1 inside.
The operation of the oxidation reactor of this example is as follows:
in the embodiment, the oxidant adopts air, and the heat exchange medium adopts high-temperature high-pressure steam; the reactant is a hydride; firstly, hydride is introduced into the shell 1 from the reactant inlet 11, and the hydride in the shell 1 is preheated by the heating coil 17 on the outer wall of the shell 1; meanwhile, air is introduced into the uniform distribution pipe 16 from the oxidant inlet 10, the air is uniformly distributed at the bottom inside the shell 1 through the uniform distribution pipe 16, and the air in the uniform distribution pipe 16 is preheated through the heat exchange pipe 9; meanwhile, high-temperature and high-pressure steam is introduced into the outer barrel 5 from the heat exchange medium inlet 7, the steam enters the lower sealing cavity 12 from the outer barrel 5 and enters the heat exchange tube 9 through the lower tube plate 13 to exchange heat with air and hydride in the shell 1, the steam after heat exchange enters the upper sealing cavity 14 from the upper tube plate 15 to form condensed water, and the condensed water flows out from the heat exchange medium outlet 8 along the inner barrel 6; the air after being fully heated and mixed reacts with hydride and then flows out from an oxide outlet 3 at the top of the end socket 2.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The winding pipe type oxidation reactor is characterized by comprising a shell (1), wherein the top end of the shell (1) is connected with an end enclosure (2), and an oxide outlet (3) is formed in the end enclosure (2); a cover plate (4) is arranged at the bottom end of the shell (1); a double-layer central cylinder is fixedly arranged in the shell (1), and the bottom end of the central cylinder penetrates through the cover plate (4) and extends to the outside of the shell (1); the central cylinder comprises an outer cylinder (5) and an inner cylinder (6), the top end and the bottom end of the outer cylinder (5) are closed, a heat exchange medium inlet (7) positioned outside the shell (1) is formed in the side wall of the outer cylinder (5), and a heat exchange medium outlet (8) is formed in the bottom end of the inner cylinder (6); a heat exchange tube (9) is spirally wound outside the outer barrel (5), an inlet of the heat exchange tube (9) is communicated with the outer barrel (5), and an outlet of the heat exchange tube (9) is communicated with the top end of the inner barrel (6); the side wall of the bottom end of the shell (1) is provided with an oxidant inlet (10) and a reactant inlet (11).
2. A wound tube oxidation reactor as claimed in claim 1, wherein the bottom of the central tube is provided with a lower sealed chamber (12) inside the shell (1), the lower sealed chamber (12) is communicated with the outer tube (5), and the top surface of the lower sealed chamber (12) is provided with an annular lower tube plate (13), and the inlet of the heat exchange tube (9) is communicated with the lower sealed chamber (12) through the lower tube plate (13).
3. A wound tube oxidation reactor as claimed in claim 1, wherein the top of the central tube is provided with an upper sealed chamber (14), the upper sealed chamber (14) is communicated with the inner tube (6), and the bottom surface of the upper sealed chamber (14) is provided with an annular upper tube plate (15), and the outlet of the heat exchange tube (9) is communicated with the upper sealed chamber (14) through the upper tube plate (15).
4. A wound tube oxidation reactor as claimed in claim 1, wherein the shell (1) is internally provided with an annular uniform distribution tube (16), and the uniform distribution tube (16) is wound outside the bottom end of the heat exchange tube (9); one end of the uniform distribution pipe (16) is communicated with the oxidant inlet (10), and the outer wall of the uniform distribution pipe (16) is provided with a plurality of through holes.
5. A wound tube oxidation reactor according to claim 1, wherein the base of the housing (1) is conical and the exterior of the conical housing (1) is provided with heating coils (17).
6. A wound tube oxidation reactor according to claim 1, wherein the head (2) is removably connected to the top end of the housing (1) by means of a flange (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222780083.3U CN218485986U (en) | 2022-10-21 | 2022-10-21 | Winding tube type oxidation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222780083.3U CN218485986U (en) | 2022-10-21 | 2022-10-21 | Winding tube type oxidation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218485986U true CN218485986U (en) | 2023-02-17 |
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ID=85193590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222780083.3U Active CN218485986U (en) | 2022-10-21 | 2022-10-21 | Winding tube type oxidation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218485986U (en) |
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2022
- 2022-10-21 CN CN202222780083.3U patent/CN218485986U/en active Active
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