CN216259108U

CN216259108U - Kettle type reboiler

Info

Publication number: CN216259108U
Application number: CN202022645788.5U
Authority: CN
Inventors: 于同川; 储乐平; 郭志芳; 陈再玉; 郭雪华; 宁静; 李巍; 范学君; 邓记松; 吕春晓
Original assignee: Offshore Oil Engineering Co Ltd
Current assignee: Offshore Oil Engineering Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2022-04-12
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a kettle type reboiler, comprising: a housing provided with a steam outlet; a heat exchange tube bundle disposed within the shell; a weir plate disposed within the housing; a wave shield assembly, the wave shield assembly comprising: set up in the casing and with prevention wave plate, the setting that steam outlet corresponds are in the casing and with the contained angle of weir plate is 30 degrees to 40 degrees oblique wave plate, setting are in the earial drainage bottom plate and the setting of weir plate one side are in the backplate of earial drainage bottom plate one end, the interval is provided with the first perforation of a plurality of on the prevention wave plate, the interval is provided with the perforation of a plurality of second on the oblique wave plate, the interval is provided with the perforation of a plurality of third on the earial drainage bottom plate. The utility model can effectively reduce the liquid level fluctuation in a shaking state, so that the liquid level in the kettle-type reboiler is more stable, the evaporation capacity and the process performance of the kettle-type reboiler are ensured, and the structure is formed simply and reliably.

Description

Kettle type reboiler

Technical Field

The utility model relates to the technical field of heat transfer equipment, in particular to a kettle type reboiler.

Background

The reboiler is a heat exchanger at the tower bottom or on the side line of the tower, is used for vaporizing part of liquid phase products and returning the liquid phase products into the tower as gas phase reflux, is a full contact of gas phase and liquid phase in the tower for mass transfer, and consists of a shell of an expanded part and a drawable tube bundle, and an overflow weir plate is arranged in the shell to ensure that the whole tube bundle can be completely immersed in the liquid phase.

Because of the high integration level and the compact arrangement of system equipment on the floating production oil storage and discharge device, the space is limited, the design can be considered to have very small allowance, and when the hull rocks, the traditional design kettle reboiler can generate serious liquid level fluctuation to cause the risk that shell side liquid can overflow from the weir plate, and simultaneously, the problems of reduced evaporation capacity, dry burning of the tube bundle and the like can also be caused, so that the process flow is unstable, the processing requirement can not be met, and great loss is caused to users.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of how to provide a kettle reboiler which can effectively reduce liquid level fluctuation in a shaking state so as to ensure the stability of the liquid level in the kettle reboiler.

In order to solve the above technical problem, the present invention provides a kettle type reboiler, comprising: a housing provided with a steam outlet; a heat exchange tube bundle disposed within the shell; a weir plate disposed in the housing, the level of the weir plate at both sides being higher than the level of the weir plate at the middle; a wave shield assembly, the wave shield assembly comprising: set up in the casing and with prevention ripples board, the setting that steam outlet corresponds are in the casing and with the contained angle of weir plate is 30 degrees to 40 degrees oblique swash plate, setting and is in the earial drainage bottom plate and the setting of weir plate one side are in the backplate of earial drainage bottom plate one end, the interval is provided with the first perforation of a plurality of on the prevention ripples board, the interval is provided with the perforation of a plurality of second on the oblique swash plate, the interval is provided with the perforation of a plurality of third on the earial drainage bottom plate, the prevention ripples board with the weir plate is parallel.

Furthermore, the wave preventing plate corresponds to the center of the steam outlet and is arranged at a distance from the steam outlet.

Further, the inclined swash plate and the weir plate form an included angle of 35 degrees.

Further, the oblique swash plate is spaced apart from the weir plate.

Further, the drain floor is perpendicular to the weir plate, and the tailgate is perpendicular to the drain floor.

Further, the first through hole and the second through hole have a diameter of 12 mm to 16 mm.

Still further, the third perforations have a diameter of 23 mm to 27 mm.

Furthermore, a plurality of fourth through holes are formed in the rear baffle at intervals.

Still further, the fourth perforation has a diameter of 23 mm to 27 mm.

Furthermore, a notch is formed in the center of the weir plate, and a plurality of fifth through holes are formed in the weir plate at intervals along at least one center line of the notch.

The utility model has the technical effects that: the prevention wave plate is arranged and the first perforation is arranged on the prevention wave plate, so that the effects of preliminary wave prevention and wave impact reduction can be achieved, the liquid flow cannot be blocked, the main wave prevention effect can be achieved, the liquid flow cannot be blocked, the liquid flowing through the weir plate can be rebounded by arranging the inclined wave plate and the second perforation is arranged on the inclined wave plate, the storage space is formed by the rear baffle, the drainage bottom plate, the weir plate and the shell, the liquid sealing effect can be achieved, the liquid in the storage space can also flow out through the third perforation and can be optimally heightened by matching with areas on two sides of the weir plate, the liquid level fluctuation in a shaking state can be effectively reduced, the liquid level in the kettle type reboiler is more stable, and the evaporation capacity and the process performance of the kettle type reboiler can be guaranteed, and the structure is simple and reliable.

Drawings

Fig. 1 is a sectional view of an overall structure of a kettle reboiler provided in an embodiment of the present invention.

Wherein, 1, a shell; 2. a steam outlet; 3. a heat exchange tube bundle; 4. a baffle plate; 5. a weir plate; 6. a preventive wave plate; 7. a swash plate; 8. a drainage wave plate; 9. a tailgate.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

An embodiment of the present invention provides a kettle reboiler, as shown in fig. 1, including: shell 1, heat exchange tube bundle 3, weir plate 5, and wave breaker subassembly.

Specifically, the casing 1 is provided with a steam outlet 2. According to actual requirements, the shell 1 can be further provided with a heat source inlet, a heat source outlet, a liquid inlet, a liquid outlet, a supporting angle and the like.

Specifically, the heat exchange tube bundle 3 is fixed in the shell 1 by a plurality of baffles 4, wherein the number of baffles 4 is set according to actual requirements.

Specifically, the weir plates 5 are disposed in the housing 1 with the level of the side areas higher than the level of the middle area. The horizontal heights of the two side areas of the weir plate 5 are higher than the horizontal height of the middle area of the weir plate 5, which is equivalent to heightening the two side areas of the weir plate 5.

Specifically, the wave preventing assembly includes: the prevention wave plate 6, the inclined wave prevention plate 7, the drainage bottom plate 8 and the rear baffle plate 9, and the weir plate 5, the drainage bottom plate 8, the rear baffle plate 9 and the shell 1 form a storage space to achieve the liquid seal effect.

Specifically, the prevention wave plate 6 is disposed in the shell 1 and corresponds to the steam outlet 2, and meanwhile, the prevention wave plate 6 is also parallel to the weir plate 5, correspondingly, and then perpendicular to the heat exchange tube bundle 3.

Specifically, a plurality of first through holes are arranged on the preventive wave plate 6 at intervals for penetrating liquid, wherein the number of the first through holes is set according to actual requirements. According to actual requirements, the plurality of first through holes on the preventive wave plate 6 can be distributed in an array, in a corner triangle, in a trapezoid and the like. Since the prevention wave plate 6 has a high opening ratio, the flow of the liquid is not hindered, and the pressure at which the liquid passes is reduced.

Specifically, the inclined swash plate 7 is arranged in the shell 1 and forms an included angle of 30-40 degrees with the weir plate 5, so that normal overflow of the shell-side medium is not hindered. In the present embodiment, the inclined swash plate 7 and the slice 5 form an angle of 35 degrees.

Specifically, a plurality of second through holes are arranged on the oblique wave-shielding plate 7 at intervals for penetrating liquid, wherein the number of the second through holes is set according to actual requirements. According to actual requirements, the second through holes on the oblique wave-preventing plate 7 can be distributed in an array, in a corner triangle, in a trapezoid and the like. Since the inclined swash plate 7 has a high opening ratio, it does not obstruct the flow of liquid and vapor to reduce the pressure of the liquid passing therethrough.

Specifically, the first through hole and the second through hole are circular holes and have diameters of 12 mm to 16 mm. In the present embodiment, the diameter of the first through hole and the second through hole is 14 mm. According to actual requirements, the first through hole and the second through hole can also be triangular holes, elliptical holes and the like.

Specifically, the leakage bottom plate 8 is arranged on the other side of the weir plate 5 corresponding to the heat exchange tube bundle 3, and a plurality of third through holes are arranged at intervals, wherein the number of the third through holes is set according to actual requirements. According to actual requirements, the third through holes on the drainage bottom plate 8 can be distributed in an array, in a corner triangle, in a trapezoid, and the like. This ensures that the liquid which is flushed over the weir plate 5 will overflow normally and the liquid in the storage space will be maintained at a certain level.

Specifically, the third through-hole is a circular hole and has a diameter of 23 to 27 mm. In this embodiment, the diameter of the third perforation is 25 mm. The third through hole can be a triangular hole, an elliptical hole, etc. according to actual requirements.

Specifically, the rear baffle 9 is disposed at one end of the drainage bottom plate 8 corresponding to the weir plate 5, and the top end of the rear baffle has a predetermined space with the housing 1 to serve as a emptying channel.

In the embodiment, the prevention wave plate 6 is arranged and the first perforation is arranged on the prevention wave plate 6, so that the effects of preliminary wave prevention and wave impact reduction can be achieved, and the liquid cannot be blocked by flowing of liquid, the inclined wave plate 7 is arranged, the second perforation is arranged on the inclined wave plate 7, the main wave prevention effect can be achieved, and the liquid flowing through the weir plate 5 cannot be blocked by flowing of the liquid and steam, the rear baffle 9 and the drainage bottom plate 8 are arranged, the third perforation is arranged on the drainage bottom plate 8, the liquid flowing through the weir plate 5 can be rebounded, the rear baffle 9, the drainage bottom plate 8, the weir plate 5 and the shell 1 form a storage space of the reboiler, the liquid sealing effect can be achieved, the liquid in the storage space can also flow out through the third perforation, and the optimized heightening of the two side areas of the weir plate 5 is matched, so that the fluctuation of the liquid level in the shaking state can be effectively reduced, and the liquid level in the kettle type is more stable, so as to ensure the evaporation capacity and the process performance of the kettle type reboiler, and the structure is simple and reliable.

As another alternative embodiment of the present invention, as shown in fig. 1, the preventive wave plate 6 is disposed corresponding to the center of the steam outlet 2 and spaced apart from the steam outlet 2. Therefore, steam can be better ensured to be discharged through the steam outlet 2, and resistance on the discharge of the steam is avoided.

As another alternative embodiment of the present invention, as shown in fig. 1, the oblique swash plate 7 is spaced apart from the weir plate 5. Therefore, the shell pass fluid can smoothly flow through the weir plate 5, the heat exchange tube bundle 3 is not arranged between the shell pass fluid and the weir plate, the steam gas generation amount is less, and the shell pass fluid can smoothly pass through the second perforation on the inclined swash plate 7.

As another alternative embodiment of the utility model, the drain floor 8 is perpendicular to the weir plate 5 and the tailgate 9 is perpendicular to the drain floor 8. Therefore, the waves rushing through the weir plate 5 can be rebounded better, a better storage space is formed, and the liquid seal effect is improved.

Of course, the drain floor 8 and the weir plate 5 may not be perpendicular to each other, and the tailgate 9 and the drain floor 8 may not be perpendicular to each other, according to actual requirements.

As another alternative embodiment of the present invention, a plurality of fourth through holes are provided at intervals on the back baffle 9, wherein the number of the fourth through holes is set according to actual requirements. This allows liquid to flow out of the fourth aperture in the backplate 9 when the third aperture in the bleed floor 8 is blocked. According to actual requirements, the fourth through holes on the rear baffle 9 are distributed in an array, in a corner triangle, in a trapezoid and the like.

Specifically, the fourth perforation is a circular hole and has a diameter of 23 to 27 mm. In this embodiment, the fourth perforation has a diameter of 25 mm. The fourth through hole can be a triangular hole, an elliptical hole, etc. according to actual requirements.

As another alternative embodiment of the present invention, a notch is provided in the center of the weir plate 5, and a plurality of fifth perforations are provided at intervals along at least one center line of the notch in the weir plate 5, wherein the number of the fifth perforations is set according to actual requirements.

In this embodiment, the weir plate 5 is provided with a plurality of fifth perforations at intervals along only one central line of the notch. According to actual requirements, the weir plate 5 can be further provided with fifth perforations at equal intervals along two central lines, three central lines, four central lines and the like.

Specifically, the fifth through-hole is a circular hole and has a diameter of 10 to 14 mm. In the present embodiment, the diameter of the fifth through-hole is 12 mm. According to actual requirements, the fifth through hole can also be a triangular hole, an elliptical hole and the like.

This embodiment sets up the breach through the central point at weir plate 5 to set up a plurality of fifth perforation, can make liquid can flow through this breach like this, and this breach can be with the resistance that liquid flows through weir plate 5 and the height control of liquid layer on weir plate 5 at reasonable within range, simultaneously, can also prevent the component accumulation.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. A kettle reboiler, characterized in that: the method comprises the following steps:

a housing provided with a steam outlet;

a heat exchange tube bundle disposed within the shell;

a weir plate arranged in the shell, wherein the horizontal heights of the two side areas of the weir plate are higher than the horizontal height of the middle area of the weir plate;

a wave shield assembly, the wave shield assembly comprising: set up in the casing and with prevention ripples board, the setting that steam outlet corresponds are in the casing and with the contained angle of weir plate is 30 degrees to 40 degrees oblique swash plate, setting and is in the earial drainage bottom plate and the setting of weir plate one side are in the backplate of earial drainage bottom plate one end, the interval is provided with the first perforation of a plurality of on the prevention ripples board, the interval is provided with the perforation of a plurality of second on the oblique swash plate, the interval is provided with the perforation of a plurality of third on the earial drainage bottom plate, the prevention ripples board with the weir plate is parallel.

2. The kettle reboiler of claim 1, wherein: the preventive wave plate corresponds to the center of the steam outlet and is arranged at intervals with the steam outlet.

3. The kettle reboiler of claim 1, wherein: the oblique swash plate with the weir plate is 35 degrees contained angles.

4. The kettle reboiler of claim 1, wherein: the oblique swash plate and the weir plate are arranged at intervals.

5. The kettle reboiler of claim 1, wherein: the drainage bottom plate is perpendicular to the weir plate, and the rear baffle is perpendicular to the drainage bottom plate.

6. The kettle reboiler of claim 1, wherein: the first and second perforations are each 12 mm to 16 mm in diameter.

7. The kettle reboiler of claim 1, wherein: the third perforations have a diameter of 23 mm to 27 mm.

8. The kettle reboiler of claim 1, wherein: and a plurality of fourth through holes are formed in the rear baffle at intervals.

9. The kettle reboiler of claim 8, wherein: the fourth perforation has a diameter of 23 mm to 27 mm.

10. The kettle reboiler of claim 1, wherein: the center position of weir plate is provided with the breach, the weir plate is followed at least one central line interval of breach is provided with a plurality of fifth perforation.