CN111059936B

CN111059936B - Shell and tube heat exchanger with uniform heat exchange

Info

Publication number: CN111059936B
Application number: CN201911362403.XA
Authority: CN
Inventors: 郭磊
Original assignee: Wuxi Huabang Intelligent Equipment Co ltd
Current assignee: Wuxi Huabang Intelligent Equipment Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2021-06-08
Anticipated expiration: 2039-12-26
Also published as: CN111059936A

Abstract

The invention discloses a tubular heat exchanger with uniform heat exchange, which belongs to the technical field of heat exchangers, and adopts the technical scheme that the tubular heat exchanger comprises a support frame, a shell and a baffle plate, wherein the shell comprises a fixed shell and a rotating shell, the fixed shell is rotatably connected with the rotating shell through a bearing, the baffle plate is fixedly connected on the inner wall of the fixed shell, a rotating groove for rotating a rotating block is formed in the end surfaces of the rotating shell and the fixed shell, a water receiving plate is fixedly connected on the inner wall of the rotating shell, the water receiving plate is arranged along the length direction of the rotating shell, the rotating block is annularly arranged on the end surface of the rotating shell, the support frame is fixedly connected to the bottom surface of the fixed shell, a supporting plate is fixedly connected on the support frame, the supporting plate is attached to and abutted against the; the invention is suitable for uniformly cooling the fluid and is beneficial to improving the cooling effect of the heat exchanger.

Description

Shell and tube heat exchanger with uniform heat exchange

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a shell and tube heat exchanger with uniform heat exchange.

Background

The shell and tube heat exchanger is the most widely used heat exchanger in chemical industry and alcohol production. It is mainly composed of a shell, a tube plate, a heat exchange tube, a seal head, a baffle plate and the like. The required materials can be respectively made of common carbon steel, red copper or stainless steel. When heat exchange is carried out, a fluid enters from the connecting pipe of the end socket, flows in the pipe and flows out from the outlet pipe at the other end of the end socket, which is called a pipe pass; the other fluid enters from a connecting pipe of the shell and flows out from the other connecting pipe on the shell, and the other fluid is called shell side.

Referring to fig. 1, the tube type heat exchanger with uniform heat exchange comprises a support frame 1 and a shell 2 arranged on the support frame 1, wherein an inner cavity of the shell 2 is in a cylindrical arrangement. A plurality of baffle plates 3 are fixedly connected in the shell 2, the baffle plates 3 are arranged along the width direction of the shell 2 and are arranged along the direction vertical to the side wall of the shell 2, and the baffle plates 3 are arranged to form a snake-shaped through cavity in the inner cavity of the shell 2. The first water inlet 4 and the first water outlet 5 are arranged on the shell 2, and the first water inlet 4 and the first water outlet 5 are respectively positioned on the upper side and the lower side of the side wall of the shell 2. A plurality of heat transfer pipes 6 are fixedly connected in the casing 2, and the heat transfer pipes 6 are arranged along the length direction of the casing 2. A plurality of through holes 7 used for penetrating and connecting the heat transfer pipe 6 are formed in the baffle plate 3, a plurality of water through holes 8 communicated with the heat transfer pipe 6 are formed in the side walls of the two ends of the shell 2, end covers 9 used for the two ends of the shell 9 are arranged at the two ends of the shell 2, a second water inlet 10 and a second water outlet 11 are formed in the end covers 9 arranged at the two ends of the shell 2 respectively, the second water inlet 10 is located on the side edge of the first water inlet 4, and the second water inlet 10 is located on the side edge of the second water outlet 11. When heat exchange is required, cooling water flows into the through cavity formed by the baffle plates 3 in the shell 2 through the first water inlet 4 and flows out from the first water outlet 5. Fluid needing heat exchange enters the end cover 9 through the second water inlet 10, enters the heat exchange tube through the water through hole 8 and then flows out of the second water outlet 11, and cooling water exchanges heat with the fluid needing heat exchange, so that heat exchange is achieved.

The cooling water has fixed trend when flowing through the casing inner chamber, and the cooling water can leave certain clearance but can nevertheless contact with the heat exchange tube that is located the below all the time with the top that is located the casing inner chamber, and this has just led to the cooling water to be located the heat exchange effect of fluid in the heat exchange tube of below in fluid compare and is located fluidic heat exchange effect in the heat exchange tube of top good to it is inhomogeneous to lead to the heat transfer, influences final heat exchange effect to fluid.

Disclosure of Invention

The invention aims to provide a tubular heat exchanger with uniform heat, which has the functions of uniformly cooling fluid and being beneficial to improving the cooling effect of the heat exchanger.

The technical purpose of the invention is realized by the following technical scheme:

a shell and tube heat exchanger with uniform heat exchange comprises a support frame, a shell arranged on the support frame and a baffle plate arranged in the shell, wherein the shell comprises a plurality of fixed shells and a plurality of rotating shells which are arranged in a staggered manner, the fixed shells and the rotating shells are rotationally connected through bearings, the baffle plate is fixedly connected on the inner walls of the fixed shells, rotating blocks are fixedly connected on the end surfaces of the rotating shells, which are attached to the fixed shells, rotating grooves for the rotating blocks to rotate are formed in the end surfaces of the fixed shells and the rotating shells, water receiving plates are fixedly connected on the inner walls of the rotating shells, the water receiving plates are arranged along the length direction of the rotating shells, the rotating blocks are annularly arranged on the end surfaces of the rotating shells, the support frame is fixedly connected to the bottom surface of the fixed shells, supporting plates are fixedly connected on the support frame, and, the support frame is provided with a driving device for rotating the rotating shell.

Through adopting above-mentioned technical scheme, the heat exchanger is carrying out the in-process of heat transfer, drive arrangement drives and rotates the casing and rotates, it is at the pivoted in-process to rotate the casing, under the drive of centrifugal force and water receiving plate, the cooling water that is located the below can constantly be poured the heat exchange tube that is located the top, the number of times of the contact of increase cooling water and the heat exchange tube that is located the top, thereby it is even to be favorable to the heat exchange of whole inside all heat exchange tubes of casing, thereby can make the fluid cooling even, be favorable to improving the effect of the cooling effect of heat exchanger.

The present invention in a preferred example may be further configured to: the driving device comprises a ring gear fixedly connected to the outer side wall of the rotating shell and a rack which is connected to the support frame in a sliding mode and meshed with the ring gear in a rotating mode, the ring gear is arranged on the outer side wall of the rotating shell in a surrounding mode, a pushing cylinder used for pushing the rack to move is fixedly connected to the support frame, and the pushing cylinder is arranged in a direction parallel to the rack.

By adopting the technical scheme, when the rotating shell needs to be rotated, the pushing cylinder is started, the pushing cylinder drives the rack to move, and the rack drives the ring gear to rotate in the moving process, so that the rotating shell is driven to rotate.

The present invention in a preferred example may be further configured to: the driving device comprises a driven sprocket fixedly connected to the outer side wall of the rotating shell, a driving sprocket rotationally connected to the support frame, and a chain rotationally meshed with the driving sprocket and the driven sprocket, wherein a driving motor used for rotating the driving sprocket is fixedly connected to the support frame.

Through adopting above-mentioned technical scheme, when needs rotate the rotation casing, start driving motor, driving motor drives the rotation sprocket and rotates, and driving sprocket drives driven sprocket at the pivoted in-process and rotates to the drive rotates the casing and rotates.

The present invention in a preferred example may be further configured to: the outer side wall of the rotating shell is fixedly connected with a guide block, the guide block is annularly arranged on the outer side wall of the rotating shell, and a guide groove used for rotating the guide block is formed in the supporting plate.

Through adopting above-mentioned technical scheme, the normal running fit of guide block and guide way is favorable to rotating the casing and is kept stable at the pivoted in-process.

The present invention in a preferred example may be further configured to: and a plurality of first steel balls are embedded on the inner groove wall of the rotating groove and are attached to and slide on the side wall of the guide block.

Through adopting above-mentioned technical scheme, steel ball one can reduce the frictional force between guide block and the guide way, is favorable to making the rotation shell more laborsaving at the pivoted in-process, and is more smooth.

The present invention in a preferred example may be further configured to: the water receiving plate is arranged in an arc shape, and the water receiving plate is arranged in a centrosymmetric manner by taking the central axis of the rotating shell as a symmetric axis.

Through adopting above-mentioned technical scheme, this kind of setting can make the connecting plate can carry more cooling water at the pivoted in-process, is favorable to improving the heat transfer effect of cooling water to the heat exchange tube in the whole casing.

The present invention in a preferred example may be further configured to: the mounting groove is formed in the side walls of the two sides of the rotating block, the mounting groove is annularly arranged on the side wall of the rotating block, the inserting plate is connected in the mounting groove in a sliding mode, a pushing spring used for pushing the inserting plate is fixedly connected to the side wall, facing the notch of the mounting groove, and the inserting groove used for inserting the inserting plate is formed in the groove wall of the rotating groove.

Through adopting above-mentioned technical scheme, the plugboard slides under the effect of promotion spring and pegs graft in the inserting groove, and this kind of setting can improve the leakproofness between turning block and the rotation groove, avoids the cooling water in the casing from rotating the seepage between casing and the fixed casing.

The present invention in a preferred example may be further configured to: and a second steel ball is embedded in the side wall of the insertion plate, which is back to the pushing spring, and the second steel ball is attached to the groove wall of the insertion groove to slide.

Through adopting above-mentioned technical scheme, the setting of steel ball two can reduce the frictional force between plugboard and the inserting groove, is favorable to rotating more laborsaving, more smooth of casing pivoted.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the arrangement of the rotating shell and the water receiving plate can play a role in increasing the contact frequency of cooling water and the heat exchange tube positioned above the cooling water and improving the cooling effect of the heat exchanger;

2. through the setting of plugboard, inserting groove, can play and improve the leakproofness between turning block and the rotation groove, avoid the effect of the cooling water seepage between rotation casing and the fixed casing in the casing.

Drawings

FIG. 1 is a schematic view showing an internal structure of a tubular heat exchanger in the prior art;

FIG. 2 is a schematic view for showing the overall structure of the shell and tube heat exchanger in example 1;

FIG. 3 is a schematic view of an enlarged view at A in FIG. 2;

FIG. 4 is a schematic diagram showing a cross-sectional view of the entire structure of the shell and tube heat exchanger in example 1;

FIG. 5 is a schematic view of an enlarged view at B in FIG. 4;

FIG. 6 is a schematic view of an enlarged view at C in FIG. 4;

FIG. 7 is a schematic diagram showing a cross-sectional view of the entire structure of the shell and tube heat exchanger in example 1;

FIG. 8 is a schematic view for showing the overall structure of the shell and tube heat exchanger in example 2.

In the figure, 1, a support frame; 2. a housing; 21. a stationary housing; 22. rotating the housing; 3. a baffle plate; 4. a first water inlet; 5. a first water outlet; 6. a heat transfer tube; 7. a through hole; 8. a water through hole; 9. an end cap; 10. a second water inlet; 11. a second water outlet; 12. a water receiving plate; 13. a support plate; 14. a guide block; 15. a guide groove; 16. steel balls I; 17. a drive device; 171. a ring gear; 172. a rack; 173. a driven sprocket; 174. a drive sprocket; 175. a chain; 19. a push cylinder; 20. rotating the block; 23. a rotating groove; 25. a plugboard; 26. a push spring; 27. steel balls II; 28. the motor is driven.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

a tubular heat exchanger with uniform heat exchange refers to fig. 2 and 3 and comprises a support frame 1 supported on the ground, a shell 2 arranged on the support frame 1 and a baffle plate 3 (refer to fig. 4) arranged in the shell 2. Wherein, casing 2 includes 3 fixed

casings

21 and 2 and rotates casing 22, and fixed casing 21 fixed connection is on support frame 1.

Referring to fig. 2 and 3, the stationary housing 21 is staggered with the rotary housing 22. The adjacent fixed shell 21 and the rotating shell 22 are rotatably connected through a bearing, and the baffle plates 3 are fixedly connected in the fixed shell 21.

Referring to fig. 7, a plurality of water receiving plates 12 are fixedly connected to the inner wall of the rotating casing 22 along the circumferential direction thereof, and the water receiving plates 12 are arranged in an arc shape and arranged along the length direction of the rotating casing 22. The water receiving plate 12 is arranged in a central symmetry manner by taking the central axis of the rotating shell 22 as a symmetry axis.

Referring to fig. 2 and 3, two rotating supporting plates 13 for supporting the rotating shell 22 are fixedly connected to the support frame 1, the supporting plates 13 are arranged in an arc shape, and the concave surfaces of the supporting plates 13 are attached to the rotating shell 22 for rotation.

Referring to fig. 2 and 3, the outer side wall of the rotating housing 22 is fixedly connected with a guide block 14, the guide block 14 is annularly arranged on the outer side wall of the rotating housing 22, and the concave surface of the supporting plate 13 is provided with a guide groove 15 for the guide block 14 to slide. Two guide blocks 14 are provided on each rotary housing 22.

Referring to fig. 4 and 5, a plurality of steel balls 16 are embedded in the inner wall of the guide groove 15, and the steel balls 16 are attached to the side wall of the guide block 14 to slide.

Referring to fig. 2 and 3, the supporting frame 1 is provided with a driving device 17 for rotating the rotating housing 22, and the driving device 17 includes a ring gear 171 fixedly connected to an outer side wall of the rotating housing 22, and a rack 172 slidably connected to the supporting frame 1 and rotatably engaged with the ring gear 171.

The ring gear 171 is disposed around the outer side wall of the rotary housing 22, and the rack 172 is disposed horizontally in the width direction of the housing 2.

Referring to fig. 2 and 3, a pushing cylinder 19 for pushing the rack 172 to move is fixedly connected to the supporting frame 1, the pushing cylinder 19 is disposed along a direction parallel to the rack 172, and a piston rod of the pushing cylinder 19 is fixedly connected to an end of the rack 172.

Referring to fig. 4 and 5, a rotary block 20 is fixedly connected to an end surface of the rotary housing 22, which is attached to the fixed housing 21, and a rotary groove 23 for rotating the rotary block 20 is formed in the end surfaces of the fixed housing 21 and the rotary housing 22.

Referring to fig. 4 and 6, mounting grooves are formed in both side walls of the rotating block 20, and the mounting grooves are annularly formed in the side walls of the rotating block 20. The mounting groove is connected with a plug board 25 in a sliding mode, and the plug board 25 is arranged in the mounting groove in a surrounding mode. The side wall of the mounting groove facing the notch is fixedly connected with a plurality of pushing springs 26 used for pushing the plugboard 25, and the pushing springs 26 are arranged along the direction vertical to the side wall of the plugboard 25. The wall of the rotating groove 23 is provided with a plug groove for plugging the plug board 25.

Referring to fig. 4 and 6, a second steel ball 27 is embedded on the side wall of the insertion plate 25 opposite to the pushing spring 26, and the second steel ball 27 is attached to the groove wall of the insertion groove to slide.

The specific implementation process comprises the following steps: the heat exchanger is at the in-process that carries out the heat transfer, starts pushing cylinder 19, and pushing cylinder 19 drives rack 172 and removes, and rack 172 drives ring gear 171 rotation at the in-process that removes to drive and rotate casing 22, rotate casing 22 and rotate at the pivoted in-process, under centrifugal force and the drive of water collector 12, the cooling water that is located the below can be constantly to the heat exchange tube that is located the top pouring, increases the number of times of the contact of cooling water and the heat exchange tube that is located the top.

Example 2:

referring to fig. 8, a tubular heat exchanger with uniform heat exchange is different from embodiment 1 in that a driving device 17 includes a driven sprocket 173 fixedly connected to an outer side wall of a rotary housing 22, a driving sprocket 174 rotatably connected to a support frame 1, and a chain 175 rotatably engaged with the driving sprocket 174 and the driven sprocket 173. Wherein the driving sprocket 174 is located at a side of the driven sprocket 173. The support frame 1 is fixedly connected with a driving motor 28 for rotating the driving chain wheel 174, and an output shaft of the driving motor 28 is fixedly connected to the center of the driving chain wheel 174.

The specific implementation process comprises the following steps: when it is necessary to rotate the rotating housing 22, the driving motor 28 is started, the driving motor 28 drives the rotating sprocket to rotate, and the driving sprocket 174 drives the driven sprocket 173 to rotate during the rotation process, so as to drive the rotating housing 22 to rotate.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides an even shell and tube heat exchanger of heat transfer, includes support frame (1), sets up casing (2) on support frame (1), sets up baffling board (3) in casing (2), its characterized in that: the shell (2) comprises a plurality of fixed shells (21) and a plurality of rotating shells (22) which are arranged in a staggered mode, the fixed shells (21) are rotatably connected with the rotating shells (22) through bearings, the baffle plate (3) is fixedly connected to the inner walls of the fixed shells (21), the rotating blocks (20) are fixedly connected to the end faces, attached to the fixed shells (21), of the rotating shells (22), rotating grooves (23) used for the rotating blocks (20) to rotate are formed in the end faces of the fixed shells (21) and the rotating shells (22), water receiving plates (12) are fixedly connected to the inner walls of the rotating shells (22), the water receiving plates (12) are arranged in the length direction of the rotating shells (22), the rotating blocks (20) are arranged on the end faces of the rotating shells (22) in a surrounding mode, the support frame (1) is fixedly connected to the bottom faces of the rotating shells (22), fixedly connected with layer board (13) on support frame (1), layer board (13) contradict with the lateral wall laminating that rotates casing (22), be provided with drive arrangement (17) that are used for rotating rotation casing (22) on support frame (1).

2. The tubular heat exchanger with uniform heat exchange according to claim 1, characterized in that: drive arrangement (17) including ring gear (171), sliding connection on support frame (1) on the lateral wall of rotating casing (22) with rack (172) that ring gear (171) rotated the meshing, ring gear (171) encircle locate on the lateral wall of rotating casing (22), fixedly connected with pushes away cylinder (19) that are used for promoting rack (172) and remove on support frame (1), it sets up along the direction that is on a parallel with rack (172) to push away cylinder (19).

3. The tubular heat exchanger with uniform heat exchange according to claim 1, characterized in that: the driving device (17) comprises a driven chain wheel (173) fixedly connected to the outer side wall of the rotating shell (22), a driving chain wheel (174) rotatably connected to the support frame (1), and a chain (175) rotatably meshed with the driving chain wheel (174) and the driven chain wheel (173), and a driving motor (28) used for rotating the driving chain wheel (174) is fixedly connected to the support frame (1).

4. The tubular heat exchanger with uniform heat exchange according to claim 1, characterized in that: the outer side wall of the rotating shell (22) is fixedly connected with a guide block (14), the guide block (14) is arranged on the outer side wall of the rotating shell (22) in a surrounding mode, and a guide groove (15) used for the guide block (14) to rotate is formed in the supporting plate (13).

5. The tube type heat exchanger with uniform heat exchange according to claim 4, characterized in that: a plurality of first steel balls (16) are embedded in the inner groove wall of the rotating groove (23), and the first steel balls (16) are attached to the side wall of the guide block (14) to slide.

6. The tubular heat exchanger with uniform heat exchange according to claim 1, characterized in that: the water receiving plate (12) is arranged in an arc shape, and the water receiving plate (12) is arranged in a centrosymmetric manner by taking the central axis of the rotating shell (22) as a symmetric axis.

7. The tubular heat exchanger with uniform heat exchange according to claim 1, characterized in that: mounting grooves (24) are formed in the side walls of the two sides of the rotating block (20), the mounting grooves (24) are annularly formed in the side wall of the rotating block (20), a plurality of insertion plates (25) are slidably connected to the mounting grooves (24), a pushing spring (26) used for pushing the insertion plates (25) is fixedly connected to the mounting grooves (24) towards the side wall of the groove openings of the mounting grooves, and insertion grooves used for inserting the insertion plates (25) are formed in the groove walls of the rotating grooves (23).

8. The tube type heat exchanger with uniform heat exchange according to claim 7, characterized in that: and a second steel ball (27) is embedded in the side wall of the insertion plate (25) back to the pushing spring (26), and the second steel ball (27) is attached to the wall of the insertion groove to slide.