CN214892749U

CN214892749U - Heat exchanger for flash tower of fractionating tower

Info

Publication number: CN214892749U
Application number: CN202121333738.1U
Authority: CN
Inventors: 李诗明; 彭开范; 刘丽军; 彭敏捷
Original assignee: Honghu Jinfa Coking Equipment Complete Set Co ltd
Current assignee: Honghu Jinfa Coking Equipment Complete Set Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-11-26
Anticipated expiration: 2031-06-16

Abstract

The utility model provides a heat exchanger for a flash distillation tower of a fractionating tower, which relates to the technical field of heat exchangers and comprises a heat exchange tube, a cold water inlet tube, a hot water inlet tube, a cold water outlet tube, a hot water outlet tube and a bearing seat, wherein a first baffle plate and a second baffle plate are arranged inside the heat exchange tube along the horizontal direction array staggered interval, the surface of the first baffle plate is welded with the top surface of the inner wall of the heat exchange tube, the surface of the second baffle plate is welded with the bottom surface of the inner wall of the heat exchange tube, baffle holes are respectively arranged on the surfaces of the first baffle plate and the second baffle plate, a first flow guide tube, a second flow guide tube and a third flow guide tube are arranged between the baffle holes in a penetrating way, the first flow guide tube, the second flow guide tube and the third flow guide tube are respectively arranged between the first baffle plate and the second baffle plate in an S-shaped way, the flow path of cold water entering the inside of the heat exchange tube is increased, the cooling water quantity inside the heat exchange tube is increased, the contact area between the outer wall of the flow guide tube and the heat exchange tube is increased, the heat exchange efficiency is higher.

Description

Heat exchanger for flash tower of fractionating tower

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a heat exchanger for fractionating tower flash column.

Background

The floating head heat exchanger is one of a plurality of heat exchangers, and mainly has the function of transferring partial heat of hot fluid to equipment of cold fluid, also called as the heat exchanger, the heat exchanger is widely applied to heating radiating fins in daily life, condensers in steam turbine devices, oil coolers on space rockets and the like, and is also widely applied to industrial departments of chemical industry, petroleum, power, atomic energy and the like, the main function of the floating head heat exchanger is to ensure the specific temperature required by a process to a medium, and simultaneously is one of main equipment for improving the energy utilization rate, and the floating head heat exchanger is always contacted with a shell water body through a tube bundle water body when in work, so that the heat energy exchange is realized.

Current heat exchanger is when carrying out the hot and cold water exchange, adopts cold water to circulate through sharp pipeline in the heat exchanger is inside, and the hot water carries out the inside circulation of heat exchanger along S type route and cold water takes place heat exchange, and the inside cold water pipe distribution area of unit heat exchanger is less to make the inside cooling water yield of heat exchanger less, heat exchange efficiency is poor, is unfavorable for actual heat transfer and uses.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a heat exchanger for a flash distillation tower of a fractionating tower.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a fractionating tower is heat exchanger for flash column, includes the heat exchange tube, cold water inlet tube, hot water inlet tube, cold water outlet pipe, hot water outlet pipe and bearing seat, the heat exchange tube is inside to be equipped with first baffler and second baffler along the horizontal direction array, and first baffler and the crisscross distribution of second baffler, and first baffler and second baffler profile is the same, first baffler surface and heat exchange tube inner wall top surface welding, second baffler surface and heat exchange tube inner wall bottom surface welding, the baffle has all been seted up on first baffler and second baffler surface, run through between the baffle and be equipped with first honeycomb duct, second honeycomb duct and third honeycomb duct, and first honeycomb duct, second honeycomb duct and third honeycomb duct all adopt the S type to arrange with first baffler and second between the baffle.

Preferably, sealing flanges are arranged on two sides of the outside of the heat exchange tube, a diversion cavity is arranged on one side of the heat exchange tube, a shell ring is arranged on the other side of the heat exchange tube, the shell ring and the diversion cavity are connected with the heat exchange tube through the sealing flanges, the diameter of the outer wall of the end part of the shell ring is the same as that of the outer wall of the heat exchange tube, and a side flange is arranged on one side, away from the heat exchange tube, of the shell ring.

Preferably, the shell ring top surface runs through and is equipped with the cold water inlet tube, the water conservancy diversion chamber bottom runs through fixedly and is equipped with the cold water outlet pipe, one side that the heat exchange tube top surface is close to the water conservancy diversion chamber runs through fixedly and is equipped with the hot water inlet tube, the one end that the hot water inlet tube was kept away from to the heat exchange tube bottom runs through fixedly and is equipped with the hot water outlet pipe.

Preferably, the inside both sides terminal surface of heat exchange tube is equipped with the impingement plate, the impingement plate surface has been seted up and has been prevented punching a hole, first honeycomb duct, second honeycomb duct and third honeycomb duct tip all run through and prevent punching a hole, the heat exchange tube both sides terminal surface runs through, the impingement plate cross section is circular.

Preferably, the baffle holes are circumferentially distributed on the surfaces of the first baffle plate and the second baffle plate, and the first flow guide pipe, the second flow guide pipe and the third flow guide pipe are all penetrated through the baffle holes at the position 1/4 on the same side of the first baffle plate and the second baffle plate.

Preferably, the two sides of the bottom of the heat exchange tube are provided with bearing seats, the top surfaces of the bearing seats are welded with the surface of the heat exchange tube, and the outer pipe diameters of the first flow guide pipe, the second flow guide pipe and the third flow guide pipe are the same as the diameter of the inner wall of the baffling hole.

Preferably, the position of preventing punching a hole and first honeycomb duct, second honeycomb duct, third honeycomb duct tip position are located the coplanar, and scour protection hole quantity and first honeycomb duct, second honeycomb duct, third honeycomb duct quantity one-to-one, first honeycomb duct, second honeycomb duct, third honeycomb duct distribute in proper order along the inside vertical direction of heat transfer pipe.

Advantageous effects

The utility model discloses in, adopt the inside water conservancy diversion pipe of heat exchange tube to arrange along S type route between first baffling board and second baffling board, make cold water get into the flow path behind the heat exchange tube inside and increase, make the distribution volume of the inside cooling water of heat exchange tube increase, the water conservancy diversion outer wall increases with the inside hot water area of contact of heat exchange tube, makes heat exchange efficiency higher.

Drawings

FIG. 1 is a front cross-sectional view of a heat exchanger for a flash column of a fractionation column;

FIG. 2 is a schematic perspective view of a heat exchanger for a flash column of a fractionation column;

FIG. 3 is a top plan view of a heat exchanger for a flash column of a fractionation column;

fig. 4 is a view showing an internal structure of a heat exchange tube of a heat exchanger for a flash column of a fractionation column.

Illustration of the drawings:

1. a heat exchange pipe; 2. a first baffle plate; 3. a baffling aperture; 4. a fender; 5. preventing punching; 6. a hot water inlet pipe; 7. a hot water outlet pipe; 8. a cold water inlet pipe; 9. a cold water outlet pipe; 10. a flow guide cavity; 11. sealing the flange; 12. a shell ring; 13. a side flange; 14. a first draft tube; 15. a second draft tube; 16. a third draft tube; 17. a load bearing seat; 18. and the second baffle plate.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, a heat exchanger for a flash distillation tower of a fractionating tower comprises a heat exchange tube 1, a cold water inlet tube 8, a hot water inlet tube 6, a cold water outlet tube 9, a hot water outlet tube 7 and a bearing seat 17, wherein sealing flanges 11 are arranged on two sides of the exterior of the heat exchange tube 1, a flow guide cavity 10 is arranged on one side of the heat exchange tube 1, a shell ring 12 is arranged on the other side of the heat exchange tube 1, the shell ring 12 and the flow guide cavity 10 are both connected with the heat exchange tube 1 through the sealing flanges 11, the diameter of the outer wall of the end part of the shell ring 12 and the diameter of the end part of the outer wall of the flow guide cavity 10 are both the same as the diameter of the outer wall of the heat exchange tube 1, the sealing flanges 11 are used for connecting the heat exchange tube 1, the flow guide cavity 10 and the shell ring 12, a side flange 13 is arranged on one side of the shell ring 12 far away from the heat exchange tube 1, the top surface of the shell ring 12 is provided with the cold water inlet tube 8 in a penetrating way, the bottom of the flow guide cavity 10 is fixedly provided with the cold water outlet tube 9, and cooling water is introduced through the cold water inlet tube 8, cold water enters the flow guide cavity 10 after being introduced for buffering the impact force of the cooling water, the cooling water with high flow velocity is prevented from initially entering the flow guide cavity 10 to form negative pressure and damage the surface of the flow guide cavity 10, two side end surfaces inside the heat exchange tube 1 are provided with the anti-impact plates 4, the surface of the anti-impact plates 4 is provided with the anti-punching holes 5, the end parts of the first flow guide tube 14, the second flow guide tube 15 and the third flow guide tube 16 are respectively penetrated through the anti-punching holes 5, the two side end surfaces of the heat exchange tube 1 are penetrated, the cross section of the anti-impact plates 4 is circular, the inside of the heat exchange tube 1 is provided with the first baffle 2 and the second baffle 18 in an array manner along the horizontal direction, the first baffle 2 and the second baffle 18 are distributed in a staggered manner, the profiles of the first baffle 2 and the second baffle 18 are the same, the surface of the first baffle 2 is welded with the top surface of the inner wall of the heat exchange tube 1, the surface of the second baffle 18 is welded with the bottom surface of the inner wall of the heat exchange tube 1, the first baffle 2 and the surface of the second baffle 18 are both provided with the baffle 3, a first guide pipe 14, a second guide pipe 15 and a third guide pipe 16 are arranged between the baffle holes 3 in a penetrating manner, the first guide pipe 14, the second guide pipe 15 and the third guide pipe 16 are arranged between the first baffle plate 2 and the second baffle plate 18 in an S-shaped arrangement manner, the first guide pipe 14, the second guide pipe 15, the third guide pipe 16, the fourth guide pipe and the like are arranged from top to bottom according to the vertical direction of the distribution of the baffle holes 3, the distribution of the guide pipes is carried out according to different vertical positions, meanwhile, the first guide pipe 14, the second guide pipe 15 and the third guide pipe 16 have the same structure, cooling water entering the flow guide cavity 10 enters through the first guide pipe 14, the second guide pipe 15 and the end part of the third guide pipe 16 penetrating through the surface of the baffle plate 4, the entering cooling water flows along the distribution paths of the first guide pipe 14, the second guide pipe 15 and the third guide pipe 16, the cooling water flows to the other end to fill the whole first flow guide pipe 14, the second flow guide pipe 15 and the third flow guide pipe 16, and the flow guide pipes inside the heat exchange pipe 1 are arranged in an S shape, so that the length inside the unit heat exchange pipe 1 is longer, the stored cooling water is more, and the heat exchange effect is better.

One side of the top surface of the heat exchange tube 1, which is close to the diversion cavity 10, is fixedly provided with a hot water inlet tube 6 in a penetrating way, one end of the bottom of the heat exchange tube 1, which is far away from the hot water inlet tube 6, is fixedly provided with a hot water outlet tube 7 in a penetrating way, the diversion holes 3 are distributed on the surfaces of the first diversion plate 2 and the second diversion plate 18 in a circumferential array way, the first diversion tube 14, the second diversion tube 15 and the third diversion tube 16 are respectively penetrated through the diversion holes 3 at the 1/4 position at the same side of the first diversion plate 2 and the second diversion plate 18, hot water to be heat exchanged enters the inside of the heat exchange tube 1 through the hot water inlet tube 6, the whole heat exchange tube 1 is penetrated through along the first diversion plate 2 and the second diversion plate 18 by an S-shaped path, the hot water exchanges heat with the first diversion tube 14, the second diversion tube 15 and cooling water inside the third diversion tube 16, the hot water after heat exchange is discharged from the hot water outlet tube 7, and the cold water after heat exchange is discharged through the cold water outlet tube 9, the two sides of the bottom of the heat exchange tube 1 are provided with bearing seats 17, the top surface of the bearing seats 17 is welded with the surface of the heat exchange tube 1, a first guide tube 14, a second guide tube 15, the outer pipe diameter of the third guide tube 16 is the same as the diameter of the inner wall of a baffling hole 3, the position of an anti-scouring hole 5 is the same as that of the first guide tube 14, the second guide tube 15 and the end position of the third guide tube 16 are positioned on the same plane, the number of the anti-scouring holes 5 is one-to-one corresponding to that of the first guide tube 14, the second guide tube 15 and the third guide tube 16, the first guide tube 14, the second guide tube 15 and the third guide tube 16 are sequentially distributed along the vertical direction in the heat exchange tube 1, the guide tubes in the heat exchange tube 1 are distributed between a first baffling plate 2 and a second baffling plate 18 along an S-shaped path, the flow path of cold water after entering the heat exchange tube 1 is increased, the distribution amount of the cooling water in the heat exchange tube 1 is increased, the contact area of the outer wall and the hot water in the heat exchange tube 1 is increased, the heat exchange efficiency is higher.

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.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fractionating tower is heat exchanger for flash column, includes heat exchange tube (1), cold water inlet tube (8), hot water inlet tube (6), cold water outlet pipe (9), hot water outlet pipe (7) and bearing seat (17), its characterized in that: a first baffle plate (2) and a second baffle plate (18) are arranged in the heat exchange tube (1) along the horizontal direction in an array manner, the first baffle plate (2) and the second baffle plate (18) are distributed in a staggered way, and the first baffle plate (2) and the second baffle plate (18) have the same contour, the surface of the first baffle plate (2) is welded with the top surface of the inner wall of the heat exchange tube (1), the surface of the second baffle plate (18) is welded with the bottom surface of the inner wall of the heat exchange tube (1), the surfaces of the first baffle plate (2) and the second baffle plate (18) are both provided with baffle holes (3), a first guide pipe (14), a second guide pipe (15) and a third guide pipe (16) are arranged between the baffle holes (3) in a penetrating way, and the first guide pipe (14), the second guide pipe (15) and the third guide pipe (16) are arranged between the first baffle plate (2) and the second baffle plate (18) in an S shape.

2. The heat exchanger for a flash column of a fractionation column according to claim 1, wherein: the heat exchange tube (1) is provided with sealing flanges (11) on two sides of the outside, a diversion cavity (10) is arranged on one side of the heat exchange tube (1), a shell ring (12) is arranged on the other side of the heat exchange tube (1), the shell ring (12) and the diversion cavity (10) are connected with the heat exchange tube (1) through the sealing flanges (11), the diameter of the outer wall of the end part of the shell ring (12) and the diameter of the end part of the outer wall of the diversion cavity (10) are the same as that of the outer wall of the heat exchange tube (1), and side flanges (13) are arranged on one side, far away from the heat exchange tube (1), of the shell ring (12).

3. The heat exchanger for a flash column of a fractionation column according to claim 2, wherein: the heat exchange tube is characterized in that a cold water inlet tube (8) is arranged on the top surface of the shell ring (12) in a penetrating mode, a cold water outlet tube (9) is fixedly arranged on the bottom of the flow guide cavity (10) in a penetrating mode, a hot water inlet tube (6) is fixedly arranged on one side, close to the flow guide cavity (10), of the top surface of the heat exchange tube (1) in a penetrating mode, and a hot water outlet tube (7) is fixedly arranged on one end, far away from the hot water inlet tube (6), of the bottom of the heat exchange tube (1) in a penetrating mode.

4. The heat exchanger for a flash column of a fractionation column according to claim 1, wherein: the heat exchange tube (1) inside both sides terminal surface is equipped with impingement baffle (4), impingement baffle (4) surface has been seted up and has been prevented punching a hole (5), first honeycomb duct (14), second honeycomb duct (15) and third honeycomb duct (16) tip all run through and prevent punching a hole (5), heat exchange tube (1) both sides terminal surface runs through, impingement baffle (4) cross section is circular.

5. The heat exchanger for a flash column of a fractionation column according to claim 1, wherein: the circumference array of baffling hole (3) distributes on first baffling board (2) and second baffling board (18) surface, first honeycomb duct (14), second honeycomb duct (15), third honeycomb duct (16) all run through with baffling hole (3) of 1/4 department's position that first baffling board (2) and second baffling board (18) are with one side.

6. The heat exchanger for a flash column of a fractionation column according to claim 1, wherein: the heat exchange tube (1) bottom both sides are equipped with bearing seat (17), and bearing seat (17) top surface and heat exchange tube (1) surface welding, first honeycomb duct (14), second honeycomb duct (15), and third honeycomb duct (16) outside pipe diameter is the same with baffling hole (3) inner wall diameter.

7. The heat exchanger for a flash column of a fractionation column according to claim 4, wherein: prevent punching a hole the position of (5) and first honeycomb duct (14), second honeycomb duct (15), third honeycomb duct (16) tip position is located the coplanar, and scour protection hole (5) quantity and first honeycomb duct (14), second honeycomb duct (15), third honeycomb duct (16) quantity one-to-one, first honeycomb duct (14), second honeycomb duct (15), third honeycomb duct (16) distribute in proper order along the inside vertical direction of heat exchange tube (1).