CN210964003U - Stably-operated aromatic hydrocarbon separation tower bottom reboiler - Google Patents
Stably-operated aromatic hydrocarbon separation tower bottom reboiler Download PDFInfo
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- CN210964003U CN210964003U CN201920907092.XU CN201920907092U CN210964003U CN 210964003 U CN210964003 U CN 210964003U CN 201920907092 U CN201920907092 U CN 201920907092U CN 210964003 U CN210964003 U CN 210964003U
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- aromatics separation
- reboiler
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Abstract
The utility model discloses an operation stable aromatics separation tower reboiler at bottom relates to the reboiler field, including aromatics separation tower, barrel and heater, the top and the aromatics separation tower fixed connection of barrel, the bottom and the heater fixed connection of barrel, barrel are provided with a plurality ofly, and a plurality of barrels are vertical distribution, and barrel bottom fixed connection has the flange, and the top of barrel is seted up flutedly, and in the flange on the barrel of top inserted the recess on the barrel of below, the lateral wall of recess passed through the interior wall connection of annular heat insulating board with the recess. The utility model discloses a set up the barrel into a plurality of stack cumulative structures for barrel convenient to detach removes the change, is provided with the dead lever in the barrel, and stop device on the spacing board group cooperation barrel on the dead lever can be spacing fixed with tube bank, makes tube bank obtain spacing in succession, and spacing effect obtains the maximum improvement, and assembly error is little, makes the radial big swing that the tube bank tail end probably takes place can be overcome to this device.
Description
Technical Field
The utility model relates to a reboiler field, in particular to operation stable reboiler at bottom of aromatic hydrocarbon separation tower.
Background
In the operation of a chemical unit, in order to provide heat for the system and improve the rectification, analysis or regeneration effect, a reboiler is generally arranged at the bottom of an annular heat insulation plate of the tower, and a circulating system is formed. The steam generated by the reboiler is sent back to the tower for solution rectification or regeneration.
The kettle reboiler is a heat exchanger with evaporation space, belonging to the external boiling type heat exchanger, and the tube bundle is usually an extractable annular heat insulation plate. The reboiler is insensitive to the change of the operation condition, the operation is stable, the reboiler can be suitable for the annular heat insulation plate for dirty media and media with high pressure, and the reboiler is convenient to clean and overhaul.
Because of the advantages of the kettle reboiler, it is widely used in the petroleum industry. The rear end structural types recommended by the GB/T annular heat insulation plate 151-annular heat insulation plate 2014 are T-shaped and U-shaped, namely the rear end structural types are a drawable floating head and a U-shaped pipe bundle. The kettle-type reboiling annular heat insulation plate device consists of a large shell and an internal tube bundle, the diameter ratio of the shell to the tube bundle is generally 1 annular heat insulation plate, 3-2 annular heat insulation plates and 0, and the tube bundle is generally in the shape of an annular heat insulation plate.
Unlike other shell and tube heat exchangers which rely on a shell to limit the tube bundle, the tube bundle of the kettle reboiler is much smaller than the shell by a much smaller annular insulating plate, and can be considered as being nearly tangent to the inner diameter of the shell at the bottom, so that the tube bundle is in a metastable state. When the operation is in a state of a relatively mild annular heat insulation plate, the tube bundle can be kept stable by means of the self-quality of the tube bundle. However, in the case of severe evaporation, and in the case of transportation and hoisting of the annular heat insulation plate, the tube bundle may deform uncontrollably to cause damage to the tube bundle, which seriously or even jeopardizes the reliability of sealing. The annular heat shield is thus necessary to limit the tube bundle.
Therefore, it is necessary to develop a reboiler at the bottom of the aromatics separation column, which is stable in operation, to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an operation stable aromatics separates reboiler at bottom of tower to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a reboiler at the bottom of an aromatic hydrocarbon separation tower with stable operation comprises an aromatic hydrocarbon separation tower, a plurality of barrels and a heater, wherein the top end of each barrel is fixedly connected with the aromatic hydrocarbon separation tower, the bottom end of each barrel is fixedly connected with the heater, the plurality of barrels are vertically distributed, a convex plate is fixedly connected with the bottom end of each barrel, a groove is formed in the top end of each barrel, the convex plate on the upper barrel is inserted into the groove on the lower barrel, the outer side wall of the groove is connected with the inner wall of the groove through an annular heat insulation plate, a fixing rod is arranged inside each barrel, the top end of each fixing rod is fixedly connected with the bottom end of the aromatic hydrocarbon separation tower, a limiting plate group and a tube bundle are arranged on the outer side of each fixing rod, the limiting plate group is installed on the fixing rod, the tube bundle is connected with the limiting plate group in, the limiting device is arranged on the inner wall of the barrel.
Preferably, the bottom end of the cylinder body is connected with a sealing layer in an adhesive mode, and the sealing layer is connected with the upper end face of the cylinder body below in an attaching mode.
Preferably, the limiting plate group comprises two mutually symmetrical limiting plates, the two limiting plates are connected through a compression spring, and one ends of the two limiting plates are movably connected with the fixing rod through pin shafts.
Preferably, the limiting plate groups are provided with a plurality of groups, the limiting plate groups are distributed in an annular array, the tube bundles are provided with a plurality of tube bundles, the tube bundles are distributed in an annular array, and the tube bundles are respectively positioned between two adjacent limiting plate groups.
Preferably, stop device includes the arc, adhesive connection has the elastic connection layer on the inner arc lateral wall of arc, the elastic connection layer is connected with the tube bank laminating, the equal fixedly connected with telescopic link in outer arc side both ends of arc, the one end that the arc was kept away from to the telescopic link and the inner wall fixed connection of barrel.
Preferably, the outer arc side middle part of arc is provided with the threaded rod, the threaded rod is located the thread groove, the thread groove is seted up on the inner wall of barrel, reset spring has been cup jointed in the one end outside of threaded rod, reset spring's both ends are the outer arc lateral wall of the inner wall of fixed connection barrel and arc respectively, the other end of threaded rod runs through thread groove and fixedly connected with knob, the knob is located the outside of barrel.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a set up the barrel into a plurality of stack cumulative structures for barrel convenient to detach removes the change, is provided with the dead lever in the barrel, and stop device on the spacing board group cooperation barrel on the dead lever can be spacing fixed with tube bank, and a plurality of barrel homoenergetic carry on spacingly to tube bank, makes tube bank obtain continuous spacingly, and spacing effect obtains the maximum improvement, and assembly error is little, makes this device can overcome the radial big swing that the tube bank tail end probably takes place.
2. The utility model discloses a be provided with compression spring between two adjacent spacing board groups, compression spring's setting makes limiting plate group play certain cushioning effect to the tube bank for less vibration can be overcome to the influence of tube bank to this device.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic sectional view of the cylinder structure of the present invention.
Fig. 3 is a schematic cross-sectional view of the tube structure of the present invention.
Fig. 4 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.
In the figure: 1. an aromatic hydrocarbon separation column; 2. a barrel; 21. a sealing layer; 6. a heater; 4. fixing the rod; 5. a convex plate; 6. a groove; 7. an annular heat insulation plate; 8. a limiting plate group; 9. a tube bundle; 10. a limiting device; 11. an arc-shaped plate; 111. an elastic tie layer; 12. a telescopic rod; 13. a threaded rod; 14. a thread groove; 15. a return spring; 16. a knob.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides an operation stable aromatics separation tower bottom reboiler as shown in fig. 1-4, by shown in fig. 1, including aromatics separation tower 1, barrel 2 and heater 3, the top and the 1 fixed connection of aromatics separation tower of barrel 2, the bottom and the 3 fixed connection of heater of barrel 2, barrel 2 is provided with a plurality ofly, and a plurality of barrels 2 are vertical distribution, and the setting of a plurality of barrels 2 makes this device convenient to detach remove and change, and the inside of barrel 2 is provided with dead lever 4, the top of dead lever 4 and the bottom fixed connection of aromatics separation tower 1.
Shown by figure 2, 2 bottom fixedly connected with flange 5 of barrel, recess 6 has been seted up on the top of barrel 2, flange 5 that is located on the barrel 2 of top inserts in the recess 6 that is located on the barrel 2 of below, flange 5 cooperation recess 6 makes two adjacent barrels 2 can the stable connection, the lateral wall of recess 6 passes through annular heat insulating board 7 and recess 6's interior wall connection, annular heat insulating board 7 has played the thermal-insulated effect that keeps warm, the bottom adhesive connection of barrel 2 has sealing layer 21, sealing layer 21 is connected with the up end laminating of the barrel 2 of below, sealing layer 21 has played sealed effect, prevent that external dust or foreign matter from entering into in the barrel 2.
As shown in fig. 3, a plurality of limiting plate groups 8 are arranged on the outer side of the fixing rod 4, the tube bundles 9 are connected with the limiting plate groups 8 in a fitting manner, the limiting plate groups 8 are provided with a plurality of groups, the plurality of limiting plate groups 8 are distributed in an annular array manner, the plurality of limiting plate groups 8 can limit the plurality of tube bundles 9, the tube bundles 9 are provided with a plurality of tube bundles 9, the plurality of tube bundles 9 are distributed in an annular array manner, the plurality of tube bundles 9 are respectively positioned between two adjacent limiting plate groups 8, the plurality of tube bundles 9 are arranged to perform the function of rapid heat exchange, each limiting plate group 8 comprises two limiting plates which are symmetrical to each other, the two limiting plates are connected through a compression spring, the reaction force generated by the compression spring performs a certain buffering function on the tube bundles 9, one end of each of the two limiting plates is movably connected with the fixing rod 4 through a pin shaft, the limiting device 10 is arranged on the inner wall of the barrel 2.
As shown in fig. 4, the limiting device 10 includes an arc plate 11, the arc plate 11 cooperates with the limiting plate group 8 to limit and fix the tube bundle 9, an elastic connecting layer 111 is bonded to the inner arc side wall of the arc plate 11, the elastic connecting layer 111 is attached to the tube bundle 9, the elastic connecting layer 111 plays a certain buffering role for the tube bundle 9, both ends of the outer arc side of the arc plate 11 are fixedly connected with a telescopic rod 12, one end of the telescopic rod 12 away from the arc plate 11 is fixedly connected with the inner wall of the barrel 2, the telescopic rod 12 plays a guiding and fixing role for the arc plate 11 to prevent the arc plate 11 from shifting during movement, a threaded rod 13 is arranged in the middle of the outer arc side of the arc plate 11, the threaded rod 13 is located in a threaded groove 14, the threaded groove 14 is opened on the inner wall of the barrel 2, a return spring 15 is sleeved outside one end of the threaded rod 13, both ends of the return spring 15 are respectively fixedly connected with the inner wall, the reset spring 15 plays a role in resetting the arc-shaped plate 11, the other end of the threaded rod 13 penetrates through the threaded groove 14 and is fixedly connected with the knob 16, the knob 16 is located on the outer side of the barrel 2, and the knob 16 can drive the threaded rod 13 to rotate.
This practical theory of operation:
when the device works, a plurality of tube bundles 9 are firstly placed on the outer side of a fixed rod 4 in an annular mode, so that the tube bundles 9 are attached to the limiting plate groups 8, the tube bundles 9 are placed between two adjacent limiting plate groups 8, then the tube bodies 2 are sleeved on the outer side of the tube bundles 9 and are sequentially placed from top to bottom, the two adjacent tube bodies 2 are connected through an annular heat insulation plate 7 to play a role in heat preservation and heat insulation, finally, a heater 3 is installed at the bottom of the tube body 2, when the tube bodies 2 are sleeved on the outer side of the tube bundles 9, the arc-shaped plates 11 on the limiting devices 10 are in contact with the tube bundles 9, the elastic connecting layers 111 on the arc-shaped plates 11 play a role in protecting the tube bundles 9, then the knob 16 is screwed, the knob 16 drives the threaded rods 13 to rotate, the threaded rods 13 can drive the arc-shaped plates 11 to move while rotating until the tube, at the moment, the arc-shaped plate 11 is matched with the limiting plate groups 8 to limit the tube bundle 9, and the compression spring between the two limiting plate groups 8 plays a role in buffering and anti-shaking on the tube bundle 9.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides an operation stable aromatics separation tower bottom reboiler, includes aromatics separation tower (1), barrel (2) and heater (3), the top and aromatics separation tower (1) fixed connection of barrel (2), the bottom and the heater (3) fixed connection of barrel (2), its characterized in that: the aromatic hydrocarbon separation column is characterized in that the plurality of cylinders (2) are vertically distributed, the bottom ends of the cylinders (2) are fixedly connected with convex plates (5), the top ends of the cylinders (2) are provided with grooves (6), the convex plates (5) on the cylinders (2) above are inserted into the grooves (6) on the cylinders (2) below, the outer side walls of the grooves (6) are connected with the inner walls of the grooves (6) through annular heat insulation plates (7), fixing rods (4) are arranged inside the cylinders (2), the top ends of the fixing rods (4) are fixedly connected with the bottom ends of the aromatic hydrocarbon separation column (1), the outer sides of the fixing rods (4) are provided with limiting plate groups (8) and tube bundles (9), the limiting plate groups (8) are installed on the fixing rods (4), the tube bundles (9) are connected with the limiting plate groups (8) in an attaching mode, one end, far away from the fixing rods (4), of the tube bundles (9) is provided with a limiting, the limiting device (10) is arranged on the inner wall of the barrel body (2).
2. An operationally stable aromatics separation bottoms reboiler as defined in claim 1 further comprising: the bottom end of the cylinder body (2) is connected with a sealing layer (21) in an adhering mode, and the sealing layer (21) is connected with the upper end face of the cylinder body (2) below in an adhering mode.
3. An operationally stable aromatics separation bottoms reboiler as defined in claim 1 further comprising: the limiting plate group (8) comprises two limiting plates which are symmetrical to each other, the two limiting plates are connected through a compression spring, and one ends of the two limiting plates are movably connected with the fixing rod (4) through pin shafts.
4. An operationally stable aromatics separation bottoms reboiler as defined in claim 1 further comprising: the limiting plate sets (8) are provided with multiple groups, the limiting plate sets (8) are distributed in an annular array mode, the tube bundles (9) are arranged in a plurality of modes, the tube bundles (9) are distributed in an annular array mode, and the tube bundles (9) are located between the two adjacent limiting plate sets (8) respectively.
5. An operationally stable aromatics separation bottoms reboiler as defined in claim 1 further comprising: stop device (10) include arc (11), the bonding is connected elastic connection layer (111) on the inner arc lateral wall of arc (11), elastic connection layer (111) is connected with tube bank (9) laminating, the equal fixedly connected with telescopic link (12) in outer arc side both ends of arc (11), the inner wall fixed connection of the one end of arc (11) and barrel (2) is kept away from in telescopic link (12).
6. An operationally stable aromatics separation bottoms reboiler as defined in claim 5 further comprising: the outer arc side middle part of arc (11) is provided with threaded rod (13), threaded rod (13) are located thread groove (14), thread groove (14) are seted up on the inner wall of barrel (2), reset spring (15) have been cup jointed in the one end outside of threaded rod (13), the inner wall of fixed connection barrel (2) and the outer arc lateral wall of arc (11) are distinguished at the both ends of reset spring (15), the other end of threaded rod (13) runs through thread groove (14) and fixedly connected with knob (16), knob (16) are located the outside of barrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907092.XU CN210964003U (en) | 2019-06-17 | 2019-06-17 | Stably-operated aromatic hydrocarbon separation tower bottom reboiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907092.XU CN210964003U (en) | 2019-06-17 | 2019-06-17 | Stably-operated aromatic hydrocarbon separation tower bottom reboiler |
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| CN210964003U true CN210964003U (en) | 2020-07-10 |
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| CN201920907092.XU Active CN210964003U (en) | 2019-06-17 | 2019-06-17 | Stably-operated aromatic hydrocarbon separation tower bottom reboiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430391A (en) * | 2022-10-13 | 2022-12-06 | 江苏峰业环境科技集团股份有限公司 | Urea catalytic hydrolysis reactor with shock mounting |
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2019
- 2019-06-17 CN CN201920907092.XU patent/CN210964003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430391A (en) * | 2022-10-13 | 2022-12-06 | 江苏峰业环境科技集团股份有限公司 | Urea catalytic hydrolysis reactor with shock mounting |
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