CN220609154U - Floating head kettle type reboiler - Google Patents
Floating head kettle type reboiler Download PDFInfo
- Publication number
- CN220609154U CN220609154U CN202321551593.1U CN202321551593U CN220609154U CN 220609154 U CN220609154 U CN 220609154U CN 202321551593 U CN202321551593 U CN 202321551593U CN 220609154 U CN220609154 U CN 220609154U
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- floating
- head cover
- shell
- tube
- heat exchange
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- 239000007788 liquid Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims 1
- 230000003670 easy-to-clean Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a floating head kettle type reboiler, which belongs to the field of chemical industry and comprises a shell, wherein a heat exchange tube bundle is arranged in the shell, one end of the heat exchange tube bundle penetrates through a fixed tube plate communicating tube box, the other end of the heat exchange tube bundle penetrates through a floating tube plate, the floating tube plate is fixedly connected with a floating head cover through a floating head hook ring flange, an outer head cover is arranged outside the floating head cover, and the outer head cover is connected with the shell; a gap is arranged between the outer head cover and the floating head cover; the floating head kettle type reboiler integrates the two structures of the common kettle type reboiler and the floating head type heat exchanger, the biggest improvement is that the end part of a straight pipe heat exchange tube bundle of the floating head type heat exchanger is connected with a floating head cover through a connecting piece, an outer head cover is matched with the end part of the straight pipe heat exchange tube bundle, the outer head cover is combined to the common kettle type reboiler, and after the outer head cover is disassembled, the inner surface of the heat exchange tube of the tube bundle is easy to clean.
Description
Technical Field
The utility model relates to a floating head kettle type reboiler, and belongs to the field of chemical industry.
Background
Reboiler is commonly used in the bottom of fractional distillation tower to heat the bottom stream to gasify a portion of the material back into the tower to provide the heat source required for the rectification process of the tower, and is an apparatus for achieving boiling heat transfer industrially in the main forms: kettle type reboiler, horizontal thermosiphon reboiler and vertical thermosiphon reboiler, according to different technological process and operation condition, choose the suitable reboiler; the liquid phase is fed from the bottom line to the reboiler at the same level as the liquid level in the fractionation column, typically 25-30% of the liquid phase in the reboiler being vaporized. The vaporized two-phase stream is sent back to the fractionation column with the vapor phase component of the return column passing upward through the tray and the liquid phase component falling back to the bottom.
Wherein the kettle reboiler has an enlarged shell and a larger space for gas-liquid separation so that only a small amount of liquid is entrained into the riser, and is therefore commonly used in reboilers, steam generators and vaporizers. The heat exchanger is the same as a floating head type U-shaped tube type heat exchanger, is convenient to clean and maintain, can treat unclean and easily-scaled mediums, and can bear high temperature and high pressure; the cleaning device has the advantages that the cleaning between the pipes and the cleaning in the pipes are convenient, and thermal stress can not be generated; the floating head type heat exchanger is suitable for occasions where the temperature difference between the shell and the tube bundle is large or the shell side medium is easy to scale, the tube plate at one end of the floating head type heat exchanger is fixed with the shell, the tube plate at the other end can float freely in the shell, and the shell and the tube bundle are free to expand, so that when the temperature difference between the two mediums is large, no temperature difference stress is generated between the tube bundle and the shell.
The prior art has the following disadvantages:
on the one hand, the small cover at the floating head end cannot be checked in operation, and the sealing requirement is high in manufacturing; on the other hand, conventional kettle-type reboilers are prone to fouling, which can cause a reduction in heat transfer coefficients.
Disclosure of Invention
The utility model aims to solve the technical problems that: the floating head kettle type reboiler integrates the two structures of the common kettle type reboiler and the floating head type heat exchanger, the biggest improvement is that the end part of a straight pipe heat exchange tube bundle of the floating head type heat exchanger is connected with a floating head cover through a connecting piece, an outer head cover is matched with the end part of the straight pipe heat exchange tube bundle, the outer head cover is combined to the common kettle type reboiler, and after the outer head cover is disassembled, the inner surface of the heat exchange tube of the tube bundle is easy to clean.
The utility model relates to a floating head kettle type reboiler, which comprises a shell, wherein a heat exchange tube bundle is arranged in the shell, one end of the heat exchange tube bundle penetrates through a fixed tube plate communicating tube box, the other end of the heat exchange tube bundle penetrates through a floating tube plate, the floating tube plate is fixedly connected with a floating head cover through a floating head hook flange, an outer head cover is arranged outside the floating head cover, and the outer head cover is connected with the shell;
a gap is arranged between the outer head cover and the floating head cover.
Through arranging the shell, the tube box and the heat exchange tube bundle, the tube side medium enters the heat exchange tube through the tube side medium inlet and is discharged from the tube side medium outlet after heat exchange with the shell side medium is completed, so that the heat exchange effect is achieved; the shell side medium enters the shell through the shell side medium inlet at the bottom, is discharged through the shell side medium outlet at the top of the shell after heat exchange with the tube side medium in the heat exchange tube is completed, and can enter the outer head cover at the right side through a gap between the outer head cover and the floating head cover; the end part of the heat exchange tube bundle and the floating head cover are fixed through the connecting piece, so that sealing is realized, the heat exchange tube bundles are connected, the flow direction of a tube side medium is changed, and heat exchange is realized.
A partition board is arranged in the pipe box and divides the cavity in the pipe box into a first cavity and a second cavity;
the top of the tube box is provided with a tube side medium inlet, and the bottom of the tube box is provided with a tube side medium outlet;
the tube side medium inlet is communicated with the first cavity;
the tube side medium outlet is communicated with the second cavity. The tube side medium inlet is formed in the top of the tube box, so that tube side medium can enter the tube box from the tube side medium inlet, return to the tube box after heat exchange is completed through the heat exchange tube, and be discharged through the tube side medium outlet formed in the bottom of the tube box; through setting up baffle and pipe incasement wall and can form first cavity and second cavity respectively, can make the tube side medium get into first cavity through the tube side medium entry, shell side medium gets into the float cover in the heat exchange tube that is connected with first cavity, gets into the second cavity through the heat exchange tube after the change direction, later discharges through the tube side medium export.
The floating head cover comprises a floating head cover flange, an arched head and a lifting lug;
a floating head cover flange is welded at the end part of the arched end socket;
the outer surface of the arched end socket is welded with a lifting lug along a vertical axis.
The floating head cover flange is welded at the end part of the arched sealing head, so that the floating head cover can be fixed on one side of the heat exchange tube bundle; by arranging the arched sealing head, the arched sealing head can be used for connecting the first cavity and the second cavity through the heat exchange tube; through setting up the lug, can make heat exchange tube bundle easily dismantle and install.
The shell is also provided with a liquid level meter port, a safety valve port and a sewage outlet;
the liquid level meter openings are positioned at the top and the bottom of the shell;
the safety valve port is positioned at the top of the shell;
the drain outlet is positioned at the bottom of the shell.
The liquid level meter ports are arranged at the top and the bottom of the shell, so that the liquid level in the shell can be detected and used for safety warning; by providing a safety valve port, the pressure in the reboiler can be controlled and regulated to ensure safe operation of the reboiler; through setting up the drain, can discharge sewage and rust spot in the casing, guarantee the inside clean of casing, improve heat exchange efficiency.
The top of the outer head cover is provided with a vent, and the bottom of the outer head cover is provided with a clean-out opening.
By providing a vent for venting air or other gases within the reboiler to avoid problems caused by accumulation of gases within the reboiler; through the clean mouth of putting that outer head lid was equipped with, can guarantee to discharge after the gas reaches certain purification requirement in the reboiler.
Compared with the prior art, the utility model has the beneficial effects that:
according to the floating head kettle type reboiler, the shell, the pipe box and the heat exchange pipe bundle are arranged, the pipe side medium enters the heat exchange pipe through the pipe side medium inlet and is discharged through the pipe side medium outlet after heat exchange with the shell side medium is completed, so that the heat exchange effect is achieved; the shell side medium enters the shell through the shell side medium inlet at the bottom, is discharged through the shell side medium outlet at the top of the shell after heat exchange with the tube side medium in the heat exchange tube is completed, and can enter the outer head cover at the right side through a gap between the outer head cover and the floating head cover; the end part of the heat exchange tube bundle and the floating head cover are fixed through the connecting piece, so that sealing is realized, the heat exchange tube bundles are connected, the flow direction of a tube side medium is changed, and heat exchange is realized; the floating head kettle type reboiler integrates the two structures of the common kettle type reboiler and the floating head type heat exchanger, the biggest improvement is that the end part of a straight pipe heat exchange tube bundle of the floating head type heat exchanger is connected with a floating head cover through a connecting piece, an outer head cover is matched with the end part of the straight pipe heat exchange tube bundle, the outer head cover is combined to the common kettle type reboiler, and after the outer head cover is disassembled, the inner surface of the heat exchange tube of the tube bundle is easy to clean.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of a tube box of the present utility model;
FIG. 3 is a schematic view of a floating head cover of the present utility model;
in the figure: 1. a housing; 2. a heat exchange tube bundle; 3. fixing the tube plate; 4. a tube box; 5. a floating tube sheet; 6. a floating head hook flange; 7. a floating head cover; 8. an outer head cover;
1.1, a liquid level meter port; 1.2, a safety valve port; 1.3 a sewage outlet; 1.4, shell side media inlet; 1.5, shell side medium outlet;
4.1, a separator; 4.2, a first cavity; 4.3, a second cavity; 4.4 a tube side medium inlet; 4.5 a tube side medium outlet;
7.1, floating head cover flange; 7.2, arched sealing heads; 7.3, lifting eyes;
8.1, an emptying port; 8.2, cleaning the mouth.
Detailed Description
Example 1
As shown in fig. 1 to 3, the floating head kettle type reboiler of the utility model comprises a shell 1, and is characterized in that a heat exchange tube bundle 2 is arranged in the shell 1, one end of the heat exchange tube bundle 2 penetrates through a communicating tube box 4 of a fixed tube plate 3, the other end of the heat exchange tube bundle 2 penetrates through a floating tube plate 5, the floating tube plate 5 is fixedly connected with a floating head cover 7 through a floating head hook flange 6, an outer head cover 8 is arranged outside the floating head cover 7, and the outer head cover 8 is connected with the shell 1;
a gap is arranged between the outer head cover 8 and the floating head cover 7.
By arranging the shell 1, the tube box 4 and the heat exchange tube bundle 2, a tube side medium enters the heat exchange tube bundle 2 through the tube side medium inlet 4.7 and is discharged from the tube side medium outlet 4.8 after heat exchange with the shell side medium is completed, so that the heat exchange effect is achieved; the shell side medium enters the shell 1 through the shell side medium inlet 1.4 at the bottom, is discharged through the shell side medium outlet 1.5 at the top of the shell 1 after heat exchange with the tube side medium in the heat exchange tube bundle 2 is completed, and can enter the outer head cover 8 at the right side through the gap between the outer head cover 8 and the floating head cover 7; the end part of the heat exchange tube bundle 2 and the floating head cover 7 are fixed through the connecting piece, so that sealing is realized, the heat exchange tube bundles 2 are connected, the flow direction of tube side media is changed, and heat exchange is realized.
A partition board 4.1 is arranged in the pipe box 4, and divides the cavity in the pipe box 4 into a first cavity 4.2 and a second cavity 4.3;
the top of the tube box 4 is provided with a tube side medium inlet 4.4, and the bottom of the tube box 4 is provided with a tube side medium outlet 4.5;
the tube side medium inlet 4.4 is communicated with the first cavity 4.2;
the tube side medium outlet 4.5 is communicated with the second cavity 4.3.
By arranging the tube side medium inlet 4.4 arranged at the top of the tube box 4, the tube side medium can enter the tube box 4 from the tube side medium inlet 4.4, return to the tube box 4 after heat exchange is completed through the heat exchange tube bundle 2, and be discharged through the tube side medium outlet 4.5 arranged at the bottom of the tube box 4; through setting up baffle 4.1 and 4 inner walls of tube housing can form first cavity 4.2 and second cavity 4.3 respectively, can make tube side medium get into first cavity 4.2 through tube side medium entry 4.4, shell side medium gets into float cover 7 through the heat transfer tube bank 2 that is connected with first cavity 4.2, gets into second cavity 4.3 through heat transfer tube bank 2 after the change of direction, later discharges through tube side medium export 4.5.
The float head cover 7 comprises a float head cover flange 7.1, an arched seal head 7.2 and a lifting lug 7.3;
the end part of the arched sealing head 7.2 is welded with a floating head cover flange 7.1;
the outer surface of the arched sealing head 7.2 is welded with a lifting lug 7.3 along the vertical axis.
The floating head cover 7 flange is welded at the end part of the arched sealing head 7.2, so that the floating head cover 7 can be fixed on one side of the heat exchange tube bundle 2; by arranging the arched sealing head 7.2, the arched sealing head 7.2 can be used for connecting the first cavity 4.3 and the second cavity 4.4 through the heat exchange tube bundle 2; by providing the lifting lugs 7.3, the heat exchange tube bundle 2 can be easily detached and installed.
The shell 1 is also provided with a liquid level meter port 1.1, a safety valve port 1.2 and a sewage drain port 1.3;
the liquid level meter ports 1.1 are positioned at the top and the bottom of the shell 1;
the safety valve port 1.2 is positioned at the top of the shell 1;
the drain outlet 1.3 is positioned at the bottom of the shell 1.
The liquid level inside the shell 1 can be detected by arranging the liquid level meter ports 1.1 at the top and the bottom of the shell 1 for use of safety warning; by providing a safety valve port 1.2, can be used to control and regulate the pressure in the reboiler to ensure safe operation of the reboiler; through setting up drain 1.3, can discharge sewage and rust spot in the casing 1, guarantee the inside clean of casing 1, improve heat exchange efficiency.
The top of the outer head cover 8 is provided with a vent 8.1, and the bottom of the outer head cover 8 is provided with a clean vent 8.2.
By providing a vent 8.1 for venting air or other gases within the reboiler to avoid problems caused by accumulation of gases within the reboiler; the air in the reboiler can be ensured to be discharged after reaching a certain purifying requirement through the cleaning opening 8.2 arranged on the outer head cover 8.
Working process or working principle: the tube side medium enters the first cavity 4.2 through the tube side medium inlet 4.4, enters the heat exchange tube bundle 2 through the first cavity 4.2, enters the floating head cover 7 to be reversed, passes through the heat exchange tube bundle 2, enters the second cavity 4.3, and is discharged through the tube side medium outlet 4.4 connected with the second cavity 4.3; simultaneously, shell-side medium enters the shell 1 through the bottom shell-side medium inlet 1.4, the shell-side medium submerges the heat exchange tube bundle 2, reboiling is carried out on the shell-side medium through the heat exchange tube bundle 2, the top space of the shell 1 is used for gas-liquid separation, the reboiled gaseous shell-side medium is discharged through the shell-side medium outlet 1.5, and the tube-side medium can enter the right outer head cover 8 through the gap between the outer head cover 8 and the floating head cover 7; the gas in the shell side medium is discharged through the vent 8.1, and the dirt in the shell 1 is discharged through the vent 8.2, so that the dirt in the shell side medium is discharged after reboiling.
The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.
Claims (4)
1. The floating head kettle type reboiler comprises a shell (1) and is characterized in that a heat exchange tube bundle (2) is arranged in the shell (1), one end of the heat exchange tube bundle (2) penetrates through a fixed tube plate (3) and is communicated with a tube box (4), the other end of the heat exchange tube bundle (2) penetrates through a floating tube plate (5), the floating tube plate (5) is fixedly connected with a floating head cover (7) through a floating head hook flange (6), an outer head cover (8) is arranged outside the floating head cover (7), and the outer head cover (8) is connected with the shell (1);
a gap is arranged between the outer head cover (8) and the floating head cover (7);
a partition board (4.1) is arranged in the pipe box (4), and divides the inner cavity of the pipe box (4) into a first cavity (4.2) and a second cavity (4.3);
the top of the tube box (4) is provided with a tube side medium inlet (4.4), and the bottom of the tube box (4) is provided with a tube side medium outlet (4.5);
the tube side medium inlet (4.4) is communicated with the first cavity (4.2);
the tube side medium outlet (4.5) is communicated with the second cavity (4.3).
2. The floating-head tank reboiler according to claim 1, characterized in that the floating-head cover (7) comprises a floating-head cover flange (7.1), an arched head (7.2) and lifting lugs (7.3);
a float cover flange (7.1) is welded at the end part of the arched seal head (7.2);
the outer surface of the arched sealing head (7.2) is welded with a lifting lug (7.3) along the vertical axis.
3. The floating-head kettle reboiler according to claim 2, wherein the housing (1) is further provided with a level gauge port (1.1), a safety valve port (1.2) and a drain port (1.3);
the liquid level meter ports (1.1) are positioned at the top and the bottom of the shell (1);
the safety valve port (1.2) is positioned at the top of the shell (1);
the sewage outlet (1.3) is positioned at the bottom of the shell (1).
4. A floating-head tank reboiler as claimed in claim 3, characterized in that the top of the outer head cover (8) is provided with a vent (8.1), and the bottom of the outer head cover (8) is provided with a purge (8.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321551593.1U CN220609154U (en) | 2023-06-16 | 2023-06-16 | Floating head kettle type reboiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321551593.1U CN220609154U (en) | 2023-06-16 | 2023-06-16 | Floating head kettle type reboiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220609154U true CN220609154U (en) | 2024-03-19 |
Family
ID=90212843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321551593.1U Active CN220609154U (en) | 2023-06-16 | 2023-06-16 | Floating head kettle type reboiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220609154U (en) |
-
2023
- 2023-06-16 CN CN202321551593.1U patent/CN220609154U/en active Active
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