CN213335690U - Gas heat exchanger - Google Patents
Gas heat exchanger Download PDFInfo
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- CN213335690U CN213335690U CN202021604816.2U CN202021604816U CN213335690U CN 213335690 U CN213335690 U CN 213335690U CN 202021604816 U CN202021604816 U CN 202021604816U CN 213335690 U CN213335690 U CN 213335690U
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- heat exchange
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Abstract
The utility model belongs to the technical field of heat exchangers, and discloses a gas heat exchanger, which comprises a shell, wherein one end of the shell is provided with a first tube plate, the other end of the shell is provided with a second tube plate, the first tube plate is connected with a first tube box, the second tube plate is connected with a second tube box, the first tube box is connected with a first seal head, the second tube box is connected with a second seal head, the first seal head is provided with a tube side inlet connecting tube, the second seal head is provided with a tube side outlet connecting tube, and the shell further comprises a shell side inlet connecting tube and a shell side outlet; the heat exchange tube is arranged in the shell, two ends of the heat exchange tube are respectively fixed on the first tube plate and the second tube plate, and two ends of the heat exchange tube are respectively communicated with the first tube box and the second tube box; the deflection grating is arranged in the shell, and the heat exchange tube penetrates through the deflection grating; the first channel box is provided with a first manhole, and the second channel box is provided with a second manhole. The utility model discloses can reduce the vibration that high-temperature gas caused, improve the security, improve the turbulent motion effect of heat transfer medium in the casing. Through setting up the manhole, be convenient for overhaul gas heat exchanger.
Description
Technical Field
The utility model relates to a heat exchanger technical field especially relates to a gas heat exchanger.
Background
In the fields of petroleum and chemical industry, most of reaction gases are finished under a high-temperature condition, or a large amount of heat is released in the reaction process, the temperature can reach hundreds or even thousands of degrees, and the heat is very large, so that measures are needed to be taken to recover the heat in order to avoid heat waste.
At present, equipment for realizing high-temperature gas heat recovery is mainly a shell-and-tube heat exchanger, but the heat exchanger is easy to vibrate to damage, so that the safety of workers is threatened. Therefore, how to reduce the vibration of the gas heat exchanger under the condition of bearing high temperature becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas heat exchanger can reduce the vibration of gas heat exchanger under the high temperature condition, improves the security.
To achieve the purpose, the utility model adopts the following technical proposal: a gas heat exchanger comprising:
the shell is characterized by comprising a shell, a first tube plate, a second tube plate, a first tube box, a second tube box, a first end socket, a second end socket, a shell side inlet connecting tube and a shell side outlet connecting tube, wherein the first tube plate is arranged at one end of the shell, the second tube plate is arranged at the other end of the shell, the first tube plate is connected with the first tube box, the second tube plate is connected with the second tube box, the first tube box is connected with the first end socket, the second end socket is connected with the second end socket, the first end socket is provided with the tube side inlet connecting;
the heat exchange tube is arranged in the shell, one end of the heat exchange tube is fixed to the first tube plate and communicated with the first tube box, and the other end of the heat exchange tube is fixed to the second tube plate and communicated with the second tube box;
a deflection grid installed inside the housing, the heat exchange tube passing through the deflection grid;
the first channel box is provided with a first manhole, and the second channel box is provided with a second manhole.
Preferably, the baffle grid comprises a baffle ring and a plurality of baffle rods fixedly connected in the baffle ring.
Preferably, the plurality of baffle rods are arranged in a net shape.
Preferably, the baffle ring is coaxial with the housing.
Preferably, the number of the baffle grids is plural, and the plurality of the baffle grids are arranged at intervals.
Preferably, the heat exchange tubes are provided with a plurality of heat exchange tubes which are uniformly distributed along the circumferential direction of the shell.
Preferably, the first tube plate and the shell are connected by welding, and the second tube plate and the shell are connected by welding.
Preferably, an expansion joint is arranged on the shell and is positioned between the shell side inlet connecting pipe and the shell side outlet connecting pipe.
Preferably, a support is mounted on the shell, the support is located between the shell-side inlet connecting pipe and the shell-side outlet connecting pipe, and the expansion joint is located between the support and the shell-side inlet connecting pipe.
Preferably, the heat exchange tube is a corrugated tube, a finned tube or a high-flux tube.
The utility model has the advantages that: the utility model provides a gas heat exchanger, through the setting of baffling grid, can reduce the vibration that high-temperature gas caused, improve gas heat exchanger's security to can improve the turbulent motion effect of heat transfer medium in the casing. In addition, through setting up the manhole, be convenient for overhaul gas heat exchanger.
Drawings
FIG. 1 is a cross-sectional view of the gas heat exchanger of the present invention;
fig. 2 is a schematic view of the baffle grid of the present invention.
In the figure: 10. a housing; 11. a shell side inlet connecting pipe; 12. a shell side outlet connecting pipe;
20. a first tube sheet; 30. a second tube sheet;
40. a first header; 41. a first manhole;
50. a second header; 51. a second manhole;
60. a first end enclosure; 61. a tube side inlet connection tube;
70. a second end enclosure; 71. a tube pass outlet connection tube;
80. a heat exchange pipe;
90. a deflection grid; 91. a baffling ring; 92. a rod baffle;
100. an expansion joint; 110. and (4) a support.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The utility model provides a gas heat exchanger is applied to high-temperature gas, and this gas heat exchanger can reduce the vibration that high-temperature gas arouses, improves gas heat exchanger's security to can improve the turbulent motion effect of heat transfer medium in the casing. In addition, the manhole is arranged, so that the gas heat exchanger can be conveniently overhauled.
As shown in fig. 1, the gas heat exchanger includes a shell 10, one end of the shell 10 is provided with a first tube plate 20, the other end of the shell 10 is provided with a second tube plate 30, the first tube plate 20 is connected with a first tube box 40, the second tube plate 30 is provided with a second tube box 50, the first tube box 40 is connected with a first seal head 60, the second tube box 50 is connected with a second seal head 70, the first seal head 60 is provided with a tube-side inlet connection tube 61, the second seal head 70 is provided with a tube-side outlet connection tube 71, and the shell 10 is provided with a shell-side inlet connection tube 11 and a shell-side outlet connection; a heat exchange tube 80 is installed inside the shell 10, one end of the heat exchange tube 80 is fixed to the first tube plate 20 and communicated with the first tube box 40, and the other end of the heat exchange tube 80 is fixed to the second tube plate 30 and communicated with the second tube box 50; a baffling grid 90 is arranged inside the shell 10, and the heat exchange pipe 80 penetrates through the baffling grid 90; the first header 40 is provided with a first manhole 41 and the second header 50 is provided with a second manhole 42 to facilitate the inspection of the gas heat exchanger.
Illustratively, high-temperature gas enters the first tube box 40 from the tube side inlet connecting tube 61 and then enters the heat exchange tubes 80 for circulation, preferably, a plurality of heat exchange tubes 80 are provided, and the plurality of heat exchange tubes 80 are uniformly distributed along the circumferential direction of the shell 10, which is beneficial to sufficient heat exchange, the heat exchange tubes 80 are single-tube side heat exchange tubes, the heat exchange tubes 80 are preferably corrugated tubes or finned tubes, a medium exchanging heat with the high-temperature gas enters the shell 10 from the shell side inlet connecting tube 11 for circulation, after the heat exchange between the heat exchange tubes and the shell side inlet connecting tube 11, the high-temperature gas flows out from the tube side outlet connecting tube 71, and the medium exchanging heat flows out from the shell side outlet connecting tube 12.
Illustratively, high-temperature gas enters the shell 10 from the shell side inlet connecting pipe 11 for circulation, a medium which exchanges heat with the high-temperature gas enters the first tube box 40 from the tube side inlet connecting pipe 61 and then enters the heat exchange tube 80 for circulation, preferably, a plurality of heat exchange tubes 80 are arranged, the plurality of heat exchange tubes 80 are uniformly distributed along the circumferential direction of the shell 10, so as to facilitate sufficient heat exchange, the heat exchange tube 80 is a single-pass heat exchange tube, the heat exchange tube 80 is preferably a high-flux tube with a porous layer in the tube, after the heat exchange between the heat exchange tube 80 and the high-temperature gas in the circulation process, the high-temperature gas flows out from the shell side outlet connecting pipe 12, and the medium which exchanges heat flows.
Preferably, as shown in fig. 2, the deflecting grid 90 includes a deflecting ring 91 and a plurality of deflecting rods 92 fixedly connected in the deflecting ring 91, further, the plurality of deflecting rods 92 are arranged in a mesh shape, the mesh shape is preferably a diamond shape, a rectangular shape or a square shape, by arranging the deflecting rods 92 arranged in a mesh shape, the flow velocity of the heat exchange medium in the shell 10 is small, the flow resistance of the heat exchange medium can be reduced, the pressure drop is small, and each deflecting rod 92 can support the heat exchange pipe 80, and the heat exchange pipe bundle composed of the plurality of heat exchange pipes 80 is not easy to vibrate, thereby preventing the gas heat exchanger from being damaged.
Furthermore, the baffle ring 91 is coaxial with the shell 10, so that the heat exchange medium in the shell side can be more easily turbulent, and the formation of a flowing dead zone is avoided. Optionally, the baffle grids 90 are provided in plurality, the baffle grids 90 are arranged at intervals, and the baffle grids 90 are arranged at intervals, so that the turbulence effect of the heat exchange medium in the shell 10 can be further improved, the supporting effect on the heat exchange tube bundle can be further improved, and the vibration of the heat exchange tube bundle can be reduced.
Illustratively, the first tube sheet 20 is connected to the shell 10 by welding, and the second tube sheet 30 is connected to the shell 10 by welding, since the high-temperature gas has a high temperature, the leakage is easy by using a common flange type connection, and by using the welding, the tube sheet thickness can be correspondingly reduced, and the leakage point can be reduced.
Preferably, the expansion joint 100 is arranged on the shell 10, the expansion joint 100 is located between the shell side inlet connecting pipe 11 and the shell side outlet connecting pipe 12, when high-temperature gas is subjected to heat exchange, axial deformation of the gas heat exchanger is easily caused by temperature difference, and the axial deformation of the gas heat exchanger can be compensated by the arrangement of the expansion joint 100, so that the gas heat exchanger is prevented from being damaged.
Alternatively, a support 110 is mounted on the shell 10, the support 110 being located between the shell-side inlet connection 11 and the shell-side outlet connection 12 for supporting the gas heat exchanger. Further, in this embodiment, the gas heat exchanger is a vertical gas heat exchanger, and the expansion joint 100 is located between the support 110 and the shell-side inlet connection pipe 11, so as to prevent the expansion joint 100 from being arranged between the support 110 and the shell-side outlet connection pipe 12 to bear an additional axial force generated by the self weight of the vertical gas heat exchanger, thereby improving the stability of the vertical gas heat exchanger.
According to the above embodiment, the utility model provides a gas heat exchanger, through the setting of baffling grid, can reduce the vibration that high-temperature gas caused, improves gas heat exchanger's security to can improve the interior heat transfer medium's of casing turbulent motion effect. In addition, through setting up the manhole, be convenient for overhaul gas heat exchanger.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A gas heat exchanger, comprising:
the tube side sealing structure comprises a shell (10), wherein a first tube plate (20) is arranged at one end of the shell (10), a second tube plate (30) is arranged at the other end of the shell (10), the first tube plate (20) is connected with a first tube box (40), the second tube plate (30) is connected with a second tube box (50), the first tube box (40) is connected with a first sealing head (60), the second tube box (50) is connected with a second sealing head (70), the first sealing head (60) is provided with a tube side inlet connecting tube (61), the second sealing head (70) is provided with a tube side outlet connecting tube (71), and the shell (10) further comprises a shell side inlet connecting tube (11) and a shell side outlet connecting tube (12);
the heat exchange tube (80) is installed inside the shell (10), one end of the heat exchange tube (80) is fixed to the first tube plate (20) and communicated with the first tube box (40), and the other end of the heat exchange tube (80) is fixed to the second tube plate (30) and communicated with the second tube box (50);
a baffle grid (90), the baffle grid (90) being installed inside the shell (10), the heat exchange pipe (80) passing through the baffle grid (90);
the first pipe box (40) is provided with a first manhole (41), and the second pipe box (50) is provided with a second manhole (51).
2. The gas heat exchanger according to claim 1, characterized in that said baffle grid (90) comprises a baffle ring (91) and a plurality of baffle rods (92) fixed inside said baffle ring (91).
3. The gas heat exchanger according to claim 2, characterized in that a plurality of said rods (92) are arranged in a mesh.
4. Gas heat exchanger according to claim 3, wherein the deflector ring (91) is coaxial with the housing (10).
5. The gas heat exchanger according to claim 4, characterized in that said baffle grid (90) is provided in plurality, said baffle grid (90) being arranged at intervals.
6. A gas heat exchanger according to any one of claims 1-5, wherein the heat exchange tubes (80) are provided in plural, and the plural heat exchange tubes (80) are uniformly distributed along the circumference of the shell (10).
7. A gas heat exchanger according to claim 1, wherein the first tube sheet (20) is connected to the shell (10) by welding and the second tube sheet (30) is connected to the shell (10) by welding.
8. Gas heat exchanger according to claim 1, wherein an expansion joint (100) is provided on the housing (10), the expansion joint (100) being located between the shell-side inlet connection (11) and the shell-side outlet connection (12).
9. Gas heat exchanger according to claim 8, wherein a support (110) is mounted on the housing (10), the support (110) being located between the shell-side inlet connection (11) and the shell-side outlet connection (12), the expansion joint (100) being located between the support (110) and the shell-side inlet connection (11).
10. A gas heat exchanger according to any one of claims 7-9, wherein the heat exchange tubes (80) are corrugated, finned or high flux tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021604816.2U CN213335690U (en) | 2020-08-05 | 2020-08-05 | Gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021604816.2U CN213335690U (en) | 2020-08-05 | 2020-08-05 | Gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213335690U true CN213335690U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021604816.2U Active CN213335690U (en) | 2020-08-05 | 2020-08-05 | Gas heat exchanger |
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| Country | Link |
|---|---|
| CN (1) | CN213335690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017760A (en) * | 2021-12-02 | 2022-02-08 | 北京广厦环能科技股份有限公司 | Steam generator |
-
2020
- 2020-08-05 CN CN202021604816.2U patent/CN213335690U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017760A (en) * | 2021-12-02 | 2022-02-08 | 北京广厦环能科技股份有限公司 | Steam generator |
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