CN219415884U - Supporting structure of heat exchange tube end part in heat exchanger - Google Patents
Supporting structure of heat exchange tube end part in heat exchanger Download PDFInfo
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- CN219415884U CN219415884U CN202320730102.3U CN202320730102U CN219415884U CN 219415884 U CN219415884 U CN 219415884U CN 202320730102 U CN202320730102 U CN 202320730102U CN 219415884 U CN219415884 U CN 219415884U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
A support structure for an end portion of a heat exchange tube in a heat exchanger, comprising: a shell side cylinder (1); the central cylinder (3) is axially arranged in the shell side cylinder body (1); a plurality of heat exchange tubes (4) are axially arranged in the shell-side cylinder body (1) and spirally wound on the periphery of the central cylinder (3) from inside to outside; an annular side tube plate (5) which is circumferentially arranged on the side wall of the shell side cylinder (1); the annular side pipe box (6) is arranged on the periphery of the side pipe plate (5) along the circumferential direction, and a pipe side connecting pipe (7) is arranged on the side pipe box (6); the end of each heat exchange tube (4) on one side in the axial direction is circumferentially arranged and supported on the side tube plate (5) and is communicated with the side tube box (6). Compared with the prior art, the utility model can reduce the space in the axial direction of the shell side cylinder body occupied by the end part of the heat exchange tube, so that the whole structure of the heat exchanger is compact.
Description
Technical Field
The utility model belongs to the technical field of heat exchangers, and particularly relates to a support structure of an end part of a heat exchange tube in a heat exchanger and the heat exchanger.
Background
The prior winding tube type heat exchanger has a shell-side cylinder body and heat exchange tubes arranged in the shell-side cylinder body, and a scheme that a side tube plate is arranged on the side wall of the shell-side cylinder body to support the end parts of the heat exchange tubes is adopted. Such as those disclosed in chinese utility model patent No. 201220575936.3, "a heat exchanger structure" (grant publication No. CN 202902937U), and chinese utility model patent No. 201920725121.0, "an integral wound tube steam generator" (grant publication No. CN 210179579U).
In the prior art, the following technical problems exist in a supporting structure between a side tube plate and the end part of a heat exchange tube: 1. because the side tube plates are arranged on the side wall of one side of the shell side tube body, the end parts of the heat exchange tubes are concentrated in the space of the side of the shell side tube plates, so that the space occupied by the end parts of the heat exchange tubes in the axial direction of the shell side tube body is larger; 2. when at least two groups of heat exchange tubes are arranged along the axial direction of the shell-side cylinder, the existing support structure between the side tube plates and the ends of the heat exchange tubes enables the distance between the adjacent ends of the two groups of heat exchange tubes to be larger, so that the utilization rate of the inner space of the shell-side cylinder is influenced, and finally the heat exchange effect is influenced.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a supporting structure of the end part of a heat exchange tube in a heat exchanger so as to reduce the space occupied by the end part of the heat exchange tube in the axial direction of a shell side cylinder body.
The technical scheme adopted for solving the technical problems is as follows: a support structure for an end portion of a heat exchange tube in a heat exchanger, comprising:
a shell side cylinder;
the central cylinder is axially arranged in the shell side cylinder;
the heat exchange tubes are axially arranged in the shell side cylinder body and spirally wound on the periphery of the central cylinder from inside to outside;
it is characterized in that the method also comprises the following steps:
the annular side tube plate is circumferentially arranged on the side wall of the shell side cylinder;
the annular side pipe box is circumferentially arranged on the periphery of the side pipe plate, and a pipe side connecting pipe is arranged on the side pipe box;
the end parts of the heat exchange tubes, which are positioned on one side in the axial direction, are circumferentially arranged and supported on the side tube plates and are communicated with the side tube boxes.
Therefore, the end parts of the heat exchange tubes are circumferentially arranged on the annular side tube plates, so that the end parts of the heat exchange tubes in the shell-side cylinder body can be prevented from being concentrated on one side, and the space occupied by the end parts of the heat exchange tubes in the axial direction of the shell-side cylinder body can be reduced; meanwhile, when two groups of heat exchange tubes are arranged along the axial direction of the central cylinder, the support structure at the end part of the heat exchange tube is beneficial to shortening the interval between the two groups of heat exchange tubes, so that the whole volume of the heat exchanger can be reduced, and the heat exchange effect can be improved.
Preferably, a plurality of heat exchange tubes spirally wound on the periphery of the central cylinder are used as one group, at least two groups are arranged along the axial direction of the central cylinder; adjacent ends of two adjacent groups of heat exchange tubes are respectively supported on the respective side tube plates and are communicated with the respective corresponding side tube boxes.
Further, the distance between two adjacent groups of heat exchange tubes in the axial direction is 20-50 mm. The spacing is much smaller than the spacing between two adjacent groups of heat exchange tubes in the prior art.
Further, the adjacent two side pipe boxes are spliced into a whole, and correspondingly, the adjacent two side pipe plates are connected into a whole. Thereby facilitating installation of the side tube sheets and side tube boxes.
In each of the above aspects, preferably, the interior of the central cylinder is hollow, and a partition plate is provided, the partition plate axially partitions the interior space of the central cylinder into a first portion and a second portion, the first portion has a first inlet connection pipe for the first medium to enter and exit, a first outlet connection pipe, and the second portion has a second inlet connection pipe for the second medium to enter and exit, and a second outlet connection pipe;
at least one group of heat exchange tubes is arranged at the periphery of the first part, and at least one group of heat exchange tubes is arranged at the periphery of the second part.
The heat exchanger can be used as a static mixing reactor, and according to the temperature of the reaction materials, a first medium and a second medium with proper temperatures are selected and respectively input into a corresponding first inlet connecting pipe and a corresponding second inlet connecting pipe, and the first part filled with the first medium and the second part filled with the second medium enable the temperature of the cylinder wall of the central cylinder to be matched with the temperature of the corresponding reaction materials so as to promote exothermic and endothermic reactions in the reaction process, thereby promoting the mixing effect. And heat exchange mediums with different temperatures can be input into the corresponding groups of heat exchange pipes according to heat release and heat absorption conditions in the reaction process, so that the reaction is promoted.
Preferably, the heat exchange tubes have at least three groups.
Preferably, the support structure further comprises:
the first separating cylinder is arranged in the first part in an axial extending way, the outer peripheral wall of the first separating cylinder is opposite to the inner peripheral wall of the first part in a spacing way to form a first annular cavity, a first cavity is formed in the first separating cylinder, the end part, close to the second part, of the first cavity is open to communicate the first cavity with the first annular cavity, the end part, far away from the second part, of the first cavity is opposite to and communicated with the first outlet connecting pipe, and the end part, far away from the second part, of the first annular cavity is opposite to and communicated with the first inlet connecting pipe;
the second separating cylinder is arranged in the second part in an axial extending way, the outer peripheral wall of the second separating cylinder is opposite to the inner peripheral wall of the second part in a spacing way to form a second annular cavity, a second cavity is formed in the second separating cylinder, the end part, close to the first part, of the second cavity is open to communicate the second cavity with the second annular cavity, the end part, far away from the first part, of the second cavity is opposite to and communicated with the second outlet connecting pipe, and the end part, far away from the first part, of the second annular cavity is opposite to and communicated with the second inlet connecting pipe.
Further, the extending length of the first part of the central cylinder in the axial direction is larger than that of the second part, two groups of heat exchange tubes are arranged on the periphery of the first part, and one group of heat exchange tubes are arranged on the periphery of the second part.
Compared with the prior art, the utility model has the advantages that: by arranging the annular side tube plates and the side tube boxes on the side wall of the shell-side tube body, the end parts of the heat exchange tubes are circumferentially distributed and supported on the side tube plates, so that the end parts of the heat exchange tubes in the shell-side tube body can be prevented from being concentrated on one side, the space occupied by the end parts of the heat exchange tubes in the axial direction of the shell-side tube body can be reduced, and the overall structure of the heat exchanger is compact; meanwhile, when two groups of heat exchange tubes are arranged along the axial direction of the central cylinder, the support structure at the end part of the heat exchange tube is beneficial to shortening the interval between the two groups of heat exchange tubes, so that the whole volume of the heat exchanger can be reduced, and the heat exchange effect can be improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of a distribution structure of each group of heat exchange tubes in FIG. 1;
fig. 3 is an enlarged view of a portion a in fig. 1.
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 3, a preferred embodiment of a support structure for the ends of heat exchange tubes in a heat exchanger according to the present utility model includes a shell-side cylinder 1, a central cylinder 3, a plurality of heat exchange tubes 4, a side tube sheet 5, a side tube box 6, and tube side connection tubes 7.
Wherein, the shell side cylinder 1 is vertically arranged, and a reaction cavity 10 extending up and down is formed in the interior of the shell side cylinder.
The upper end and the lower end of the shell-side cylinder body 1 are respectively provided with an upper tube plate 11 and a lower tube plate 12, the upper side of the upper tube plate 11 is provided with an upper tube box 13, and the upper tube box 13 is provided with a first tube-side connecting tube 131; the lower tube sheet 12 is provided with a lower tube box 14 on the lower side, and the lower tube box 14 is provided with a second tube side connection tube 141. The reaction device also comprises a reaction material inlet connecting pipe 2a and a reaction material outlet connecting pipe 2b (the reaction material can be acrylonitrile, dimer, ethylbenzene, antioxidant, rubber, styrene, trimer, acrylonitrile-styrene polymer and the like), the upper end of the reaction material inlet connecting pipe 2a is positioned above the upper pipe box 13, the lower end of the reaction material inlet connecting pipe extends downwards and passes through the upper pipe box 13 and the upper pipe plate 11 to be opposite to and communicated with the top space of the reaction cavity 10, and the part of the reaction material inlet connecting pipe 2a is a first expansion joint structure 21, and the first expansion joint structure 21 is positioned above the upper pipe box 13; the lower end of the reaction material outlet connection pipe 2b is positioned below the lower tube box 14, the upper end extends upwards and passes through the lower tube box 14 and the lower tube plate 12 to be opposite to and communicated with the bottom space of the reaction cavity 10, and the part of the reaction material outlet connection pipe 2b is a second expansion joint structure 22, and the second expansion joint structure 22 is positioned below the lower tube box 14.
The central cylinder 3 is vertically arranged in the shell side cylinder body 1, the upper end of the central cylinder 3 is supported on the upper tube plate 11, and the lower end of the central cylinder 3 is supported on the lower tube plate 12. The central cylinder 3 is hollow, and is provided with a partition plate 30, the partition plate 30 divides the inner space of the central cylinder 3 into two parts along the up-down direction, namely a first part 3a and a second part 3b positioned below the first part 3a, and the extension length of the first part 3a along the up-down direction is larger than the extension length of the second part 3 b. And the first part 3a is provided with a first inlet nipple 31a, a first outlet nipple 31b, and the second part 3b is provided with a second inlet nipple 32a, a second outlet nipple 32b.
In this embodiment, specifically, a first separating tube 31 extending up and down is disposed in the first portion 3a, the outer peripheral wall of the first separating tube 31 is spaced opposite to the inner peripheral wall of the first portion 3a to form a first annular cavity 310, a first chamber 311 is formed in the interior of the first separating tube 31, and the bottom of the first chamber 311 is opened to communicate the first chamber 311 with the first annular cavity 310. The upper end of the first inlet connection pipe 31a is positioned above the upper pipe box 13, and the lower end of the first inlet connection pipe 31a passes through the upper pipe box 13 and the upper pipe plate 11 and is opposite to and communicated with the top space of the first annular cavity 310; the upper end of the first outlet nipple 31b is located above the upper tube box 13, and the lower end of the first outlet nipple 31b is opposite to and communicates with the head space of the first chamber 311 after passing through the upper tube box 13 and the upper tube sheet 11. And the first inlet connection pipe 31a and the first outlet connection pipe 31b are bent pipes.
A second partition cylinder 32 extending up and down is arranged in the second part 3b, the outer peripheral wall of the second partition cylinder 32 is opposite to the inner peripheral wall of the second part 3b at intervals to form a second annular cavity 320, a second cavity 321 is formed in the second partition cylinder 32, and the top of the second cavity 321 is opened to communicate the second cavity 321 with the second annular cavity 320. The lower end of the second inlet connection pipe 32a is positioned below the lower tube box 14, and the upper end of the second inlet connection pipe 32a passes through the lower tube box 14 and the lower tube plate 12 and is opposite to and communicated with the bottom space of the second annular cavity 320; the lower end of the second outlet nipple 32b is located below the lower tube box 14, and the upper end of the second outlet nipple 32b is opposite to and communicates with the bottom space of the second chamber 321 after passing through the lower tube box 14 and the lower tube sheet 12. And the second inlet nipple 32a and/or the second outlet nipple 32b are bent tubes.
The heat exchange tubes 4 are axially arranged in the shell-side cylinder body 1 and spirally wound on the periphery of the central cylinder 3 from inside to outside, the spiral angle of each heat exchange tube 4 is 20-50 degrees, and the interval between every two adjacent heat exchange tubes is 20-25 mm. The heat exchange tubes spirally wound around the outer periphery of the central tube are three groups, wherein the first group of heat exchange tubes 41 and the second group of heat exchange tubes 42 are arranged on the outer periphery of the first part 3a of the central tube 3 one by one, the upper ends of the first group of heat exchange tubes 41 are supported on the upper tube plate 11 and are communicated with the first tube side connecting tube 131, the third group of heat exchange tubes 43 are arranged on the outer periphery of the second part 3b of the central tube 3, and the lower ends of the third group of heat exchange tubes 43 are supported on the lower tube plate 12 and are communicated with the second tube side connecting tube 141.
Meanwhile, adjacent ends of two adjacent groups of heat exchange tubes 4 are respectively supported on the side wall of the shell-side cylinder 1 through respective side tube plates 5. In the present embodiment, the lower end portions of the adjacent first group of heat exchange tubes 41 and the upper end portions of the adjacent second group of heat exchange tubes 42 are taken as examples (the adjacent end portions of the other two adjacent groups of heat exchange tubes 4 are arranged in the same manner), and specifically, the following is adopted:
as shown in fig. 1 and 3, side tube plates 5 are respectively arranged on the side walls of the shell-side cylinder 1 corresponding to the lower ends of the first group of heat exchange tubes 41 and the upper ends of the second group of heat exchange tubes 42, the two side tube plates 5 are arranged one above the other and connected integrally, and each side tube plate 5 is annular and is circumferentially arranged on the side wall of the shell-side cylinder 1. Simultaneously, all be equipped with corresponding side tube case 6 on every side tube sheet 5, adjacent two side tube cases 6 are connected integratively, and each side tube case 6 is annular to locate the periphery of corresponding side tube sheet 5 along circumference, and all be equipped with tube side takeover 7 on every side tube case 6. The lower end parts of the first group of heat exchange tubes 41 are circumferentially arranged and supported on the corresponding side tube plates 5 and are communicated with the corresponding side tube boxes 6; the upper end portions of the second group of heat exchange tubes 42 are circumferentially arranged and supported on the corresponding side tube plates 5 and are in communication with the corresponding side tube boxes 6. And the first group of heat exchange tubes 41 and the second group of heat exchange tubes 42 are spaced apart from each other by a distance of 20 to 50mm in the up-down direction.
In this way, according to the temperature of the reaction materials, the first medium and the second medium with appropriate temperatures can be respectively input into the corresponding first inlet connection pipe 31a and second inlet connection pipe 32a, and the first part filled with the first medium and the second part filled with the second medium enable the wall temperature of the central cylinder to be matched with the temperature of the corresponding reaction materials, so as to promote exothermic and endothermic reactions in the reaction process. Meanwhile, the heat exchange tubes 4 are designed into 3 groups, and heat exchange mediums with different temperatures can be input into the heat exchange tubes 4 of the corresponding group according to heat release and heat absorption conditions in the reaction process, so that the reaction is promoted.
The design of the annular side tube plate 5 and the side tube box 6 in the embodiment ensures that the heat exchange tubes 4 are uniformly distributed in the whole shell-side cylinder 1, thereby ensuring the smooth progress of the reaction.
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 (8)
1. A support structure for an end portion of a heat exchange tube in a heat exchanger, comprising:
a shell side cylinder (1);
the central cylinder (3) is axially arranged in the shell side cylinder body (1);
a plurality of heat exchange tubes (4) are axially arranged in the shell-side cylinder body (1) and spirally wound on the periphery of the central cylinder (3) from inside to outside;
it is characterized in that the method also comprises the following steps:
an annular side tube plate (5) which is circumferentially arranged on the side wall of the shell side cylinder (1);
the annular side pipe box (6) is arranged on the periphery of the side pipe plate (5) along the circumferential direction, and a pipe side connecting pipe (7) is arranged on the side pipe box (6);
the end of each heat exchange tube (4) on one side in the axial direction is circumferentially arranged and supported on the side tube plate (5) and is communicated with the side tube box (6).
2. The support structure of claim 1, wherein: the heat exchange tubes (4) spirally wound on the periphery of the central cylinder are taken as one group, at least two groups are arranged along the axial direction of the central cylinder (3); adjacent ends of two adjacent groups of heat exchange tubes (4) are respectively supported on the respective side tube plates (5) and are communicated with the respective corresponding side tube boxes (6).
3. The support structure of claim 2, wherein: the spacing between two adjacent groups of heat exchange tubes (4) in the axial direction is 20-50 mm.
4. The support structure of claim 2, wherein: adjacent two side pipe boxes (6) are spliced into a whole, and correspondingly, adjacent two side pipe plates (5) are connected into a whole.
5. The support structure of claim 2 or 3 or 4, wherein: the inside of the central cylinder (3) is hollow, and is provided with a partition plate (30), the partition plate (30) axially divides the inner space of the central cylinder (3) into a first part (3 a) and a second part (3 b), the first part (3 a) is provided with a first inlet connecting pipe (31 a) and a first outlet connecting pipe (31 b) for a first medium to enter and exit, and the second part (3 b) is provided with a second inlet connecting pipe (32 a) and a second outlet connecting pipe (32 b) for a second medium to enter and exit;
at least one group of heat exchange tubes (4) is arranged on the periphery of the first part (3 a), and at least one group of heat exchange tubes (4) is arranged on the periphery of the second part (3 b).
6. The support structure of claim 5, wherein: at least three groups of heat exchange tubes (4) are arranged.
7. The support structure of claim 6, wherein: the method also comprises the following steps:
a first partition cylinder (31) extending along the axial direction, which is arranged in the first part (3 a), wherein the outer peripheral wall of the first partition cylinder (31) is opposite to the inner peripheral wall of the first part (3 a) at intervals to form a first annular cavity (310), a first cavity (311) is formed in the first partition cylinder (31), the end part, close to the second part (3 b), of the first cavity (311) is opened to communicate the first cavity (311) with the first annular cavity (310), the end part, far from the second part (3 b), of the first cavity (311) is opposite to and communicated with the first outlet connecting pipe (31 b), and the end part, far from the second part (3 b), of the first annular cavity (310) is opposite to and communicated with the first inlet connecting pipe (31 a);
the second separating cylinder (32) is arranged in the second part (3 b) along the axial direction, the outer peripheral wall of the second separating cylinder (32) is opposite to the inner peripheral wall of the second part (3 b) at intervals to form a second annular cavity (320), a second cavity (321) is formed in the second separating cylinder (32), the end, close to the first part (3 a), of the second cavity (321) is open to communicate the second cavity (321) with the second annular cavity (320), the end, far away from the first part (3 a), of the second cavity (321) is opposite to and communicated with the second outlet connecting pipe (32 b), and the end, far away from the first part (3 a), of the second annular cavity (320) is opposite to and communicated with the second inlet connecting pipe (32 a).
8. The support structure of claim 7, wherein: the extending length of a first part (3 a) of the central cylinder (3) in the axial direction is larger than that of a second part (3 b), two groups of heat exchange tubes (4) are arranged on the periphery of the first part (3 a), and one group of heat exchange tubes (4) are arranged on the periphery of the second part (3 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320730102.3U CN219415884U (en) | 2023-03-30 | 2023-03-30 | Supporting structure of heat exchange tube end part in heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320730102.3U CN219415884U (en) | 2023-03-30 | 2023-03-30 | Supporting structure of heat exchange tube end part in heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219415884U true CN219415884U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320730102.3U Active CN219415884U (en) | 2023-03-30 | 2023-03-30 | Supporting structure of heat exchange tube end part in heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN219415884U (en) |
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- 2023-03-30 CN CN202320730102.3U patent/CN219415884U/en active Active
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