CN219400077U - Core structure of static mixing reactor and static mixing reactor - Google Patents
Core structure of static mixing reactor and static mixing reactor Download PDFInfo
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- CN219400077U CN219400077U CN202320741904.4U CN202320741904U CN219400077U CN 219400077 U CN219400077 U CN 219400077U CN 202320741904 U CN202320741904 U CN 202320741904U CN 219400077 U CN219400077 U CN 219400077U
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Abstract
A core structure of a static mixing reactor and the static mixing reactor, the core structure comprises: a central cylinder (1), and the axial direction of the central cylinder (1) is recorded as the up-down direction; the heat exchange tubes (2) are spirally wound on the periphery of the central cylinder (1) from inside to outside to form coils (20), and at least two coils (20) are arranged up and down; a first connecting pipe (3) for the heat conducting medium to enter and exit, and is communicated with the inner end part (21) of each coil pipe (20); a second connecting pipe (4) for the heat conducting medium to enter and exit, and is communicated with the outer end part (22) of each coil pipe (20); the inner end parts (21) of the coils (20) are arranged at intervals along the circumferential direction of the central cylinder (1); and/or the outer ends (22) of the coils (20) are arranged at intervals along the circumference of the central cylinder (1). Compared with the prior art, the utility model can uniformly conduct heat.
Description
Technical Field
The utility model belongs to the technical field of reactors, and particularly relates to a core structure of a static mixing reactor and the static mixing reactor.
Background
The static mixing reactor is an indispensable device in the polymerization reaction, mainly plays roles of reaction heating and heat removal, and simultaneously avoids transitional polymerization, insufficient reaction and other conditions caused by uneven heating and heat removal of materials.
The solution disclosed in chinese patent application 00808946.9, reactor, in particular reactor for exothermic reactions (issued CN 1152738C), comprises a substantially cylindrical outer shell; at least one catalytic bed in the housing comprising a porous cylindrical outer sidewall and an inner sidewall coaxial therewith, the catalytic bed sidewall and the housing forming a free space; a heat exchanger within the catalytic bed is formed by a plurality of coils, coils or similar shaped tubes fluidly connected to the inlet and outlet collectors for the cooling fluid. More specifically, the heat exchanger comprises a plurality of superimposed and structurally independent modular units, each comprising at least two coils, coils or tubes of similar shape, perpendicular to the axis of the shell and coiled around a respective portion of the inner wall of the catalytic bed, and having corresponding connection portions with the inlet and outlet collectors.
The above patent has the following technical problems: when the cooling fluid flows into each mode unit of the heat exchanger, the temperature of the cooling fluid in each mode unit positioned on one side in the circumferential direction is basically consistent, and after heat exchange, the temperature of the cooling fluid in each mode unit positioned on the other side in the circumferential direction is different, so that the reaction medium in the reactor is heated unevenly, and the reaction efficiency is affected.
Disclosure of Invention
The first technical problem to be solved by the utility model is to provide a core structure of a static mixing reactor capable of uniformly conducting heat aiming at the current state of the art.
The second technical problem to be solved by the utility model is to provide a static mixing reactor with the core structure.
The technical scheme adopted by the utility model for solving the first technical problem is as follows: a core structure of a static mixing reactor, comprising:
the central cylinder is axially in the up-down direction;
the heat exchange tubes are spirally wound on the periphery of the central cylinder from inside to outside to form coils, and at least two coils are arranged up and down;
the first connecting pipe for the heat conducting medium to enter and exit is communicated with the inner end part of each coil;
the second connecting pipe is used for leading the heat-conducting medium in and out and is communicated with the outer end parts of the coils;
the method is characterized in that:
the inner end parts of the coils are arranged at intervals along the circumferential direction of the central cylinder; and/or the outer ends of the coils are arranged at intervals along the circumference of the central cylinder.
Therefore, after the heat conducting medium passes through the inner end or the outer end of each coil pipe and enters the coil pipe, the inner end or the outer end of each coil pipe is arranged at intervals along the circumferential direction of the central cylinder, so that the heat conducting temperature in the circumferential direction is uniform, and the reaction medium can be heated uniformly.
Preferably, the inside of the central cylinder is hollow, and the first connecting pipe is arranged on the central cylinder and is communicated with the inner end part of each coil pipe through the inner space of the central cylinder.
In order to enable the inner end of each coil to be restrained to and communicated with the central tube more stably, it is preferable that the side peripheral wall of the central tube is provided with a riser extending radially outwards at a position corresponding to the inner end of each coil, the riser is provided with a through hole penetrating the plate thickness, and the inner end of each coil is supported by the corresponding riser and communicated with the inner space of the central tube through the through hole in the riser. Thus, the inner end part of the spiral coil pipe can be fixed relative to the central cylinder without bending and is communicated with the central cylinder.
Further, the side peripheral wall of the central cylinder is provided with a first part and a second part in the circumferential direction, the first part and the second part are respectively positioned at two sides of the vertical plate, the first part is provided with a first side edge which extends up and down and is relatively close to the vertical plate, and the second part is provided with a second side edge which extends up and down and is relatively close to the vertical plate;
the riser has opposed first and second vertical edges in a radial extension, the first vertical edge engaging a first side of the first portion and the second vertical edge engaging a second side of the second portion; so that the first plate surface of the vertical plate faces the inner space of the central cylinder, and the second plate surface of the vertical plate faces outwards and is opposite to the heat exchange tube.
Thus, when the inner end of the coil pipe is supported on the vertical plate, the communication with the central cylinder can be realized without additionally arranging a communication channel.
Further, the inner wall of the central cylinder is provided with a circumferentially extending annular flange which is positioned between the upper vertical plate and the lower vertical plate. The annular flange can improve the structural strength of the central cylinder.
Preferably, the spiral directions of the upper and lower adjacent coils are the same or opposite.
Preferably, the lengths of the heat exchange tubes of each coil are the same.
Further, the number of the second connection pipes is consistent with that of the coils, and the second connection pipes are respectively connected to the outer ends of the coils corresponding to the second connection pipes. Of course, the second connection tube can be only one, and simultaneously be communicated with the outer end of each coil.
In each of the above embodiments, it is further preferable that the heat exchange tubes of the upper and lower adjacent coils are arranged so as to be staggered in the up-down direction. Therefore, the reaction medium can be prevented from directly passing along the up-down direction, and the reaction medium can exchange heat with the heat conducting medium in the coil pipe sufficiently.
The utility model solves the second technical problem by adopting the technical proposal that: a static mixing reactor comprising: the shell side cylinder is vertically arranged, a reaction cavity is formed in the shell side cylinder in a hollow mode, and a third connecting pipe and a fourth connecting pipe for a reaction medium to enter and exit are respectively arranged at the upper end and the lower end of the shell side cylinder;
the heat exchange tube is characterized by further comprising the core structure, the central tube and the heat exchange tube are arranged in the shell-side tube, the first connecting tube is arranged at the top of the shell-side tube, and the second connecting tube is arranged on the side wall of the shell-side tube.
Preferably, the third connecting pipe and the fourth connecting pipe are staggered in the up-down direction.
Preferably, the spacing distance between the outer ring of the coil and the inner peripheral wall of the shell side cylinder is less than or equal to 30mm;
and/or the interval distance between the inner ring of the coil pipe and the peripheral wall of the central cylinder is less than or equal to 30mm;
and/or the interval distance between the heat exchange tubes of the adjacent layers inside and outside the coil is less than or equal to 30mm. The above design of the distance can make the reaction more uniform.
Compared with the prior art, the utility model has the advantages that: by arranging the inner ends of the coils at intervals along the circumference of the central cylinder; and/or, the outer end parts of the coils are arranged at intervals along the circumferential direction of the central cylinder, so that when the heat conducting medium passes through the inner end parts or the outer end parts of the coils and enters the coils, the inner end parts or the outer end parts of the coils are arranged at intervals along the circumferential direction of the central cylinder, so that the heat conducting temperature in the circumferential direction is uniform, and the reaction medium can be heated uniformly.
Drawings
FIG. 1 is a schematic structural view of a static mixing reactor according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a static mixing reactor according to an embodiment of the present utility model from another perspective;
FIG. 3 is a longitudinal cross-sectional view of a static mixing reactor according to an embodiment of the utility model;
FIG. 4 is a transverse cross-sectional view of a static mixing reactor according to an embodiment of the utility model;
fig. 5 is an enlarged view of a portion a in fig. 4.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 5, a core structure of a static mixing reactor and a preferred embodiment of the static mixing reactor according to the present utility model are shown, and the static mixing reactor comprises a shell side cylinder 5 and a core structure.
Wherein, shell side barrel 5 sets up vertically, and inside cavity is formed with the reaction chamber. The upper end and the lower end of the shell side cylinder body 5 are respectively provided with a third connecting pipe 6 and a fourth connecting pipe 7 for the reaction medium to enter and exit. The third connecting pipe 6 and the fourth connecting pipe 7 are staggered in the up-down direction.
The core structure comprises a central cylinder 1, a heat exchange tube 2, a first connecting tube 3 and a second connecting tube 4.
The central cylinder 1 is vertically arranged in the shell side cylinder body 5, and the inside of the central cylinder (1) is hollow.
The first connecting pipe 3 is arranged at the center of the top of the shell side cylinder 5 and at a position right above the central cylinder 1 and is communicated with the inner space of the central cylinder 1 so as to allow the heat-conducting medium to enter and exit.
The heat exchange tubes 2 are spirally wound on the periphery of the central cylinder 1 from inside to outside to form coils 20, the coils 20 are four groups and are arranged at intervals up and down, the spiral directions of the upper and lower adjacent groups of coils 20 are the same, and the lengths of the heat exchange tubes 2 of the coils 20 are the same. The heat exchange tubes 2 of the upper and lower adjacent two sets of coils 20 are staggered in the up-down direction. The inner ends 21 of the coils 20 are arranged at equal intervals in the circumferential direction of the center tube 1 and communicate with the inner space of the center tube 1. The outer end portions 22 of the coils 20 are arranged at intervals along the circumferential direction of the central cylinder 1, and are connected with second connecting pipes 4 for the heat conducting medium to enter and exit, and the second connecting pipes 4 are also provided with four groups, and are respectively arranged on the side wall of the shell side cylinder 5 corresponding to the outer end portions 22 of the coils 20.
In order to fix the inner ends 21 of the coils 20 relative to the central tube 1 and communicate with the inner space of the central tube 1, the side peripheral wall of the central tube 1 is provided with risers 10 extending radially outwards corresponding to the positions of the inner ends 21 of the coils, the risers 10 are provided with through holes 100 penetrating the thickness of the plates, and the inner ends 21 of the coils 20 are supported at the through holes 100 of the corresponding risers 10 and communicate with the inner space of the central tube 1 through the through holes 100 of the risers 10. Specifically, the side peripheral wall of the center barrel 1 has a first portion 11 and a second portion 12 in the circumferential direction, which are located on both sides of the riser 10, respectively, and the first portion 11 has a first side extending up and down and relatively close to the riser 10, and the second portion 12 has a second side extending up and down and relatively close to the riser 10; the riser 10 has opposite first and second vertical edges 101, 102 in the radial extension direction, the first vertical edge 101 being engaged with a first side of the first portion 11 and the second vertical edge 102 being engaged with a second side of the second portion 12; so that the first plate surface 10a of the riser 10 faces the inner space of the center tube 1 and the second plate surface 10b of the riser 10 faces outward and is opposite to the heat exchange tube 2. That is, the side peripheral wall of the center tube 1 has steps corresponding to the inner ends 21 of the respective coils, and the risers 10 are stepped surfaces of the corresponding steps.
Meanwhile, in the embodiment, the interval distance between the outer ring of the coil 20 and the inner peripheral wall of the shell side cylinder 5 is less than or equal to 30mm; the interval distance between the inner ring of the coil pipe 20 and the peripheral wall of the central cylinder 1 is less than or equal to 30mm; the spacing distance between the adjacent layers of heat exchange tubes 2 inside and outside the coil 20 is less than or equal to 30mm, so that the reaction is more uniform.
In this embodiment, each coil 20 has two coil units arranged one above the other, each coil unit is formed by spirally winding one heat exchange tube from inside to outside, and the inner ends of the two coil units are aligned up and down and respectively supported at two through holes 100 of the same riser 10, and the outer ends of the two coil units are also aligned up and down and are communicated with the second connecting tube 4. Please refer to fig. 3 and 4.
When in use, a heat-conducting medium (such as heat-conducting oil) can be input into the coil 20 from the second connecting pipe 4, and the heat-conducting medium after heat exchange is output from the first connecting pipe 3 (the first connecting pipe 3 can be used as an inlet for inputting the heat-conducting medium in reverse, and the second connecting pipe 4 is used as an outlet for outputting the heat-conducting medium, and the heat-conducting medium is designed according to actual working conditions); meanwhile, the reaction medium is input into the shell-side cylinder 5 from a fourth connecting pipe 7 at the bottom of the shell-side cylinder 5, exchanges heat with the heat-conducting medium in the coil 20, and is output from a third connecting pipe 6 at the top of the shell-side cylinder 5.
In the description and claims of the present utility model, terms indicating directions, such as "upper", "lower", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.
Claims (9)
1. A core structure of a static mixing reactor, comprising:
a central cylinder (1), and the axial direction of the central cylinder (1) is recorded as the up-down direction;
the heat exchange tubes (2) are spirally wound on the periphery of the central cylinder (1) from inside to outside to form coils (20), and at least two coils (20) are arranged up and down;
a first connecting pipe (3) for the heat conducting medium to enter and exit, and is communicated with the inner end part (21) of each coil pipe (20);
a second connecting pipe (4) for the heat conducting medium to enter and exit, and is communicated with the outer end part (22) of each coil pipe (20);
the method is characterized in that:
the inner end parts (21) of the coils (20) are arranged at intervals along the circumferential direction of the central cylinder (1); and/or the outer ends (22) of the coils (20) are arranged at intervals along the circumference of the central cylinder (1).
2. The core structure of claim 1, wherein: the inside of the central cylinder (1) is hollow, and the first connecting pipe (3) is arranged on the central cylinder (1) and is communicated with the inner end (21) of each coil pipe (20) through the inner space of the central cylinder (1).
3. The core structure of claim 1, wherein: the side peripheral wall of the central cylinder (1) is provided with a riser (10) extending outwards in the radial direction at the position corresponding to the inner end (21) of each coil pipe, the riser (10) is provided with a through hole (100) penetrating through the thickness of the plate, and the inner end (21) of each coil pipe (20) is supported on the corresponding riser (10) and is communicated with the inner space of the central cylinder (1) through the through hole (100) in the riser (10).
4. A core structure according to claim 3, wherein: the side peripheral wall of the central cylinder (1) is provided with a first part (11) and a second part (12) in the circumferential direction, the first part (11) and the second part are respectively positioned at two sides of the vertical plate (10), the first part (11) is provided with a first side edge which extends up and down and is relatively close to the vertical plate (10), and the second part (12) is provided with a second side edge which extends up and down and is relatively close to the vertical plate (10);
-the riser (10) has, in a radial extension, opposite first (101) and second (102) vertical edges, the first vertical edge (101) being engaged with a first side of the first portion (11) and the second vertical edge (102) being engaged with a second side of the second portion (12); so that the first plate surface (10 a) of the riser (10) faces the inner space of the central cylinder (1), and the second plate surface (10 b) of the riser (10) faces outwards and is opposite to the heat exchange tube (2).
5. The core structure of claim 1, wherein: the lengths of the heat exchange tubes (2) of the coils are the same.
6. The core structure of claim 1, wherein: the number of the second connection pipes (4) is consistent with that of the coils (20), and the second connection pipes are respectively connected with the outer end parts (22) of the coils (20) corresponding to the second connection pipes.
7. The core structure according to any one of claims 1-6, wherein: the heat exchange tubes (2) of the upper and lower adjacent coils (20) are staggered in the up-down direction.
8. A static mixing reactor comprising: the shell side cylinder (5) is vertically arranged, a reaction cavity is formed in the shell side cylinder in a hollow mode, and a third connecting pipe (6) and a fourth connecting pipe (7) for allowing a reaction medium to enter and exit are respectively arranged at the upper end and the lower end of the shell side cylinder (5);
the heat exchange tube is characterized by further comprising a core structure according to any one of claims 1 to 7, wherein the central tube (1) and the heat exchange tube (2) are arranged in the shell side tube body (5), the first connecting tube (3) is arranged at the top of the shell side tube body (5), and the second connecting tube (4) is arranged on the side wall of the shell side tube body (5).
9. The static mixing reactor of claim 8, wherein: the interval distance between the outer ring of the coil pipe (20) and the inner peripheral wall of the shell side cylinder body (5) is less than or equal to 30mm;
and/or the interval distance between the inner ring of the coil pipe (20) and the outer peripheral wall of the central cylinder (1) is less than or equal to 30mm;
and/or the interval distance between the adjacent layers of heat exchange tubes (2) inside and outside the coil (20) is less than or equal to 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741904.4U CN219400077U (en) | 2023-03-30 | 2023-03-30 | Core structure of static mixing reactor and static mixing reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741904.4U CN219400077U (en) | 2023-03-30 | 2023-03-30 | Core structure of static mixing reactor and static mixing reactor |
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| Publication Number | Publication Date |
|---|---|
| CN219400077U true CN219400077U (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320741904.4U Active CN219400077U (en) | 2023-03-30 | 2023-03-30 | Core structure of static mixing reactor and static mixing reactor |
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- 2023-03-30 CN CN202320741904.4U patent/CN219400077U/en active Active
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