Shell-and-tube heat exchanger for food processing equipment

Abstract

The utility model discloses a shell-and-tube heat exchanger for food processing equipment, which comprises a shell and a tube plate, the tube plate is mounted on the outer wall of the shell, a tube box is mounted on the outer wall of the tube plate, a partition plate is arranged in the tube box and connected with the tube plate, a tube pass inlet is arranged at the top end of the tube box, and a tube pass outlet is arranged at the bottom end of the tube pass inlet. A tube pass outlet is formed in the bottom end of the tube box, a plurality of sets of U-shaped heat exchange tubes are installed in the portion, on one side of the tube plate, of the shell, the U-shaped heat exchange tubes all extend out of the tube plate, pull rods are symmetrically installed in the portions, on one sides of the U-shaped heat exchange tubes, of the shell, a plurality of sets of baffle plates are installed on the outer walls of the pull rods, and the baffle plates are all connected with the U-shaped heat exchange tubes. According to the shell-and-tube heat exchanger, food can be rapidly cooled, heat exchange type sterilization on the food is facilitated, angle inclined type rotation is facilitated, and the heat exchange efficiency of the shell-and-tube heat exchanger is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shell and tube heat exchangers, in particular to a shell and tube heat exchanger for food processing equipment. Background Art

[0002] Shell and tube heat exchanger, also known as shell and tube heat exchanger, is a partition type heat exchanger that uses the wall of the tube bundle enclosed in the shell as the heat transfer surface. This type of heat exchanger has a simple structure, low cost, wide flow cross-section, and is easy to clean scale, but has a low heat transfer coefficient and occupies a large area. It can be made of various structural materials (mainly metal materials) and can be used under high temperature and high pressure. It is the most widely used type.

[0003] For example, a shell and tube heat exchange device disclosed in the authorization announcement number CN214842648U belongs to the technical field of food processing equipment. It includes a tube shell, a cooling medium introduction interface is provided on the shell wall at the right end, and a cooling medium outlet interface is provided on the shell wall at the left end, the left end cover corresponds to the left end of the tube shell and the left side is provided with the first and second material introduction interfaces, the right side of the left end cover has a left end cover liquid guide cavity, the right end cover corresponds to the right end of the tube shell and the left side of the right end cover has a right end cover liquid guide cavity; a tubular circulating reflux heat exchange mechanism, the left end is fixed to the left end face of the tube shell, the right end is fixed to the right end face of the tube shell, the middle part is located in the tube shell cavity, the left end cover is fixed to the left end of the tubular circulating reflux heat exchange mechanism, and the first and second material introduction interfaces and the left end cover liquid guide cavity are connected to the left end of the tubular circulating reflux heat exchange mechanism, and the right end cover is fixed to the right end of the tubular circulating reflux heat exchange mechanism;

[0004] Although it has achieved the goal of enhancing adaptability to food and ensuring good circulation effects; facilitating assembly, ensuring food safety, reducing flow resistance, improving efficiency, and saving energy consumption, it has not solved the problem that the existing shell and tube heat exchanger is not conducive to rapid cooling of food during use, is not convenient for heat exchange sterilization of food, and is not convenient for angle tilting rotation, which affects the heat exchange efficiency of the shell and tube heat exchanger. Utility Model Content

[0005] The purpose of the utility model is to provide a shell and tube heat exchanger for food processing equipment to solve the problem in the above-mentioned background technology that the shell and tube heat exchanger is not convenient for rapid cooling of food, is not convenient for heat exchange sterilization of food, is not convenient for angle tilting rotation, which affects the heat exchange efficiency of the shell and tube heat exchanger.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shell and tube heat exchanger for food processing equipment, comprising a shell and a tube sheet, a tube sheet is installed on the outer wall of the shell, a tube box is installed on the outer wall of the tube sheet, a partition is arranged inside the tube box, and the partition is connected to the tube sheet, a tube side inlet is arranged at the top of the tube box, and a tube side outlet is arranged at the bottom of the tube box, a plurality of groups of U-shaped heat exchange tubes are installed inside the shell on one side of the tube sheet, and the U-shaped heat exchange tubes all extend to the outside of the tube sheet, a pull rod is symmetrically installed inside the shell on one side of the U-shaped heat exchange tube, a plurality of groups of baffles are installed on the outer wall of the pull rod, and the baffles are all connected to the U-shaped heat exchange tube, a shell side inlet is arranged at the top of the shell, and a shell side outlet is arranged at the bottom of the shell on one side of the tube box.

[0007] Preferably, a first base is provided at the bottom end of the shell on the shell outlet side, a support arm is installed at the top end of the first base, a first sleeve is installed at the top end of the support arm, a first support arc plate is installed at the bottom end of the shell above the first sleeve, a first movable shaft is installed at the bottom end of the first support arc plate, and the first sleeve is movably connected to the first support arc plate through the first movable shaft.

[0008] Preferably, a second base is provided at the bottom end of the shell on one side of the first base, a lower support seat is installed at the top end of the second base, an upper support seat is provided at the top end of the lower support seat, a second shaft sleeve is installed at the top end of the upper support seat, a second supporting arc plate is installed at the bottom end of the shell above the second shaft sleeve, a second movable shaft is installed at the bottom end of the second supporting arc plate, and the second shaft sleeve is movably connected to the second supporting arc plate through the second movable shaft.

[0009] Preferably, lower movable arms are symmetrically arranged inside the lower support seat, and lower supporting shafts are installed at one end of the lower movable arms close to the lower support seat, and the lower movable arms are movably connected to the lower support seat through the lower supporting shaft.

[0010] Preferably, an upper movable arm is provided at one end of the lower movable arm away from the lower support seat, a connecting shaft is installed at one end of the upper movable arm close to the lower movable arm, and the upper movable arm is movably connected to the lower movable arm through the connecting shaft.

[0011] Preferably, an upper support shaft is installed at one end of the upper movable arm close to the upper support seat, and the upper movable arm is movably connected to the upper support seat through the upper support shaft.

[0012] Preferably, a movable frame is provided outside the lower support seat, a servo motor is installed on the outer wall of the movable frame, and the servo motor extends to the inside of the movable frame, a first gear is installed at the output end of the servo motor, and a threaded rod is movably installed inside the movable frame on one side of the servo motor, and the threaded rod extends to the outside of the movable frame.

[0013] Preferably, a second gear is mounted on the surface of the threaded rod on one side of the first gear, and the first gear and the second gear are meshed with each other, a movable sleeve is mounted on the surface of a group of connecting shafts on one side of the threaded rod, and the threaded rod and the movable sleeve are movably connected, and the movable sleeve is connected to the movable frame, and a threaded block is mounted on the surface of another group of connecting shafts, and the threaded rod and the threaded block are threadedly connected.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the shell and tube heat exchanger not only realizes rapid cooling of food, but also facilitates heat exchange sterilization of food, facilitates angle tilting rotation, and improves the heat exchange efficiency of the shell and tube heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a front view structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of a U-shaped heat exchange tube of the utility model;

[0018] Figure 4 It is a side view structural schematic diagram of the utility model;

[0019] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the first gear of the utility model;

[0020] Figure 6 It is a side-view enlarged structural schematic diagram of the movable sleeve of the utility model.

[0021] In the figure: 1. shell; 2. tube sheet; 3. tube box; 4. tube side inlet; 5. tube side outlet; 6. partition; 7. shell side inlet; 8. shell side outlet; 9. tie rod; 10. baffle; 11. U-shaped heat exchange tube; 12. first base; 13. support arm; 14. first bushing; 15. first movable shaft; 16. first supporting arc plate; 17. second base; 18. lower support seat; 19. upper support seat; 20. second bushing; 21. second movable shaft; 22. second supporting arc plate; 23. lower movable arm; 24. upper movable arm; 25. lower supporting shaft; 26. connecting shaft; 27. movable frame; 28. servo motor; 29. ​​first gear; 30. threaded rod; 31. second gear; 32. threaded block; 33. upper supporting shaft; 34. movable sleeve. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] See also Figure 1-6 , the utility model provides an embodiment: a shell and tube heat exchanger for food processing equipment, including a shell 1 and a tube sheet 2, the outer wall of the shell 1 is installed with the tube sheet 2, the outer wall of the tube sheet 2 is installed with a tube box 3, the interior of the tube box 3 is provided with a partition 6, and the partition 6 is connected to the tube sheet 2, the top of the tube box 3 is provided with a tube side inlet 4, the bottom of the tube box 3 is provided with a tube side outlet 5, a plurality of groups of U-shaped heat exchange tubes 11 are installed inside the shell 1 on one side of the tube sheet 2, and the U-shaped heat exchange tubes 11 all extend to the outside of the tube sheet 2, a tie rod 9 is symmetrically installed inside the shell 1 on one side of the U-shaped heat exchange tube 11, a plurality of groups of baffles 10 are installed on the outer wall of the tie rod 9, and the baffles 10 are all connected to the U-shaped heat exchange tube 11, a shell side inlet 7 is provided at the top of the shell 1, and a shell side outlet 8 is provided at the bottom of the shell 1 on one side of the tube box 3;

[0024] When in use, an external power supply is connected. During food processing, the external pipeline is first connected through the tube side inlet 4, the tube side outlet 5, the shell side inlet 7, and the shell side outlet 8. The cold fluid enters the interior of the tube box 3 through the tube side inlet 4. Under the support of the tube sheet 2 and the obstruction of the partition 6, the cold fluid enters the interior of the U-shaped heat exchange tube 11 through the tube box 3. Under the support of the pull rod 9 and the support of the U-shaped heat exchange tube 11 by multiple groups of baffles 10, the cold fluid flows inside the U-shaped heat exchange tube 11. The hot fluid enters the interior of the shell 1 through the shell side inlet 7. Under the support of multiple groups of baffles 10, the hot fluid flows on the outer wall of the U-shaped heat exchange tube 11 along the baffles 10 and contacts the inside of the U-shaped heat exchange tube 11. The heat is transferred through the outer wall of the U-shaped heat exchange tube 11, thereby transferring heat from the hot fluid to the cold fluid. During the heat transfer process, the heat of the hot fluid is transferred from the outer wall of the U-shaped heat exchange tube 11 to the inner wall through heat conduction, and then transferred from the inner wall to the cold fluid through convection. The cold fluid flows inside the U-shaped heat exchange tube 11 and absorbs heat. The heat-absorbing cold fluid flows out through the tube side outlet 5. The cooled hot fluid loses heat during the heat exchange process and flows out through the shell side outlet 8, realizing convenient internal and external heat exchange of the shell and tube heat exchanger, facilitating rapid cooling and temperature reduction of food, facilitating heat exchange sterilization of food, and improving the heat exchange efficiency of the shell and tube heat exchanger.

[0025] A first base 12 is provided at the bottom of the shell 1 on the side of the shell outlet 8, a support arm 13 is installed at the top of the first base 12, a first sleeve 14 is installed at the top of the support arm 13, a first support arc plate 16 is installed at the bottom of the shell 1 above the first sleeve 14, a first movable shaft 15 is installed at the bottom of the first support arc plate 16, and the first sleeve 14 is movably connected to the first support arc plate 16 through the first movable shaft 15, a second base 17 is provided at the bottom of the shell 1 on the side of the first base 12, a lower support seat 18 is installed at the top of the second base 17, and the lower support seat 18 An upper support seat 19 is provided at the top end, a second sleeve 20 is installed at the top end of the upper support seat 19, a second support arc plate 22 is installed at the bottom end of the housing 1 above the second sleeve 20, a second movable shaft 21 is installed at the bottom end of the second support arc plate 22, and the second sleeve 20 is movably connected to the second support arc plate 22 through the second movable shaft 21, and lower movable arms 23 are symmetrically arranged inside the lower support seat 18, and lower support shafts 25 are installed at one end of the lower movable arms 23 close to the lower support seat 18, and the lower movable arms 23 are movably connected to the lower support seat 18 through the lower support shaft 25;

[0026] The lower movable arm 23 is provided with an upper movable arm 24 at one end away from the lower support seat 18, and the upper movable arm 24 is installed with a connecting shaft 26 at one end close to the lower movable arm 23, and the upper movable arm 24 is movably connected to the lower movable arm 23 through the connecting shaft 26, and the upper movable arm 24 is installed with an upper support shaft 33 at one end close to the upper support seat 19, and the upper movable arm 24 is movably connected to the upper support seat 19 through the upper support shaft 33. A movable frame 27 is provided outside the lower support seat 18, and a servo motor 28 is installed on the outer wall of the movable frame 27. The servo motor 28 plays a role in power output, and the servo motor 28 extends to the inner wall of the movable frame 27. The output end of the servo motor 28 is equipped with a first gear 29, a threaded rod 30 is movably installed inside the movable frame 27 on one side of the servo motor 28, and the threaded rod 30 extends to the outside of the movable frame 27, a second gear 31 is sleeved on the surface of the threaded rod 30 on one side of the first gear 29, and the first gear 29 and the second gear 31 are meshed with each other, a movable sleeve 34 is sleeved on the surface of a group of connecting shafts 26 on one side of the threaded rod 30, and the threaded rod 30 is movably connected to the movable sleeve 34, and the movable sleeve 34 is connected to the movable frame 27, and a threaded block 32 is sleeved on the surface of another group of connecting shafts 26, and the threaded rod 30 is threadedly connected to the threaded block 32;

[0027] When in use, the servo motor 28 is turned on by operation, and under the support of the movable frame 27, the servo motor 28 drives the first gear 29 to rotate. Under the meshing action of the first gear 29 and the second gear 31, the first gear 29 drives the second gear 31 to rotate. Under the support of the movable sleeve 34 on the movable frame 27, under the movable support of the movable sleeve 34 and the threaded rod 30, the second gear 31 drives the threaded rod 30 to rotate. Under the threaded support of the threaded rod 30 and the threaded block 32, the threaded block 32 moves on the surface of the threaded rod 30, and the threaded block 32 drives the lower movable arm 23 and the upper movable arm 24 to rotate through the connecting shaft 26. Under the support of the upper support shaft 33, the upper movable arm 24 rotates around the upper support shaft 33 as the axis, and the upper support seat 19 is driven by the upper movable arm 24 to move. Under the support of the lower support shaft 25, the lower movable arm 23 rotates around the lower support shaft 25 as the axis. With the support of the lower support seat 18, the lower movable arm 23 and the upper movable arm 24 drive the upper support seat 19 to adjust its height, and the upper support seat 19 drives the second sleeve 20 to adjust its height. With the active support of the second sleeve 20 and the second movable shaft 21, the second sleeve 20 drives the second supporting arc plate 22 to adjust its height through the second movable shaft 21. With the support of the first base 12, with the support of the first sleeve 14 by the support arm 13, and with the active support of the first sleeve 14 and the first supporting arc plate 16 by the first movable shaft 15, the second supporting arc plate 22 drives the shell 1 as a whole to rotate at an angle with the first movable shaft 15 as the axis, so as to facilitate the inclined outflow of the fluid inside the shell 1, thereby realizing the convenient angle-inclined rotation of the shell and tube heat exchanger, facilitating the acceleration of the circulation speed of the fluid, and improving the convenience of adjustment and control of the shell and tube heat exchanger.

[0028] Working principle: When in use, an external power supply is connected. During food processing, the external pipeline is first connected through the tube side inlet 4, the tube side outlet 5, the shell side inlet 7, and the shell side outlet 8. The cold fluid enters the interior of the tube box 3 through the tube side inlet 4. Under the support of the tube sheet 2 and the barrier of the partition 6, the cold fluid enters the interior of the U-shaped heat exchange tube 11 through the tube box 3. The cold fluid flows inside the U-shaped heat exchange tube 11, and the hot fluid enters the interior of the shell 1 through the shell side inlet 7. The hot fluid flows along the baffle 10 on the outer wall of the U-shaped heat exchange tube 11. The heat transfer tube 11 flows upward and transfers heat with the cold fluid inside the U-shaped heat exchange tube 11. The heat is transferred through the outer wall of the U-shaped heat exchange tube 11, thereby transferring heat from the hot fluid to the cold fluid. During the heat transfer process, the heat of the hot fluid is transferred from the outer wall of the U-shaped heat exchange tube 11 to the inner wall by heat conduction, and then transferred from the inner wall to the cold fluid by convection. The cold fluid flows inside the U-shaped heat exchange tube 11 and absorbs heat. The cold fluid that absorbs heat flows out through the tube side outlet 5. The cooled hot fluid loses heat during the heat exchange process and flows out through the shell side outlet 8. The servo motor 28 drives the first gear 29 to rotate, the first gear 29 drives the second gear 31 to rotate, the second gear 31 drives the threaded rod 30 to rotate, the threaded block 32 moves on the surface of the threaded rod 30, the threaded block 32 drives the lower movable arm 23 and the upper movable arm 24 to rotate through the connecting shaft 26, the upper movable arm 24 rotates with the upper support shaft 33 as the axis, the upper movable arm 24 drives the upper support seat 19 to move, the lower movable arm 23 rotates with the lower support shaft 25 as the axis, and the lower movable arm 23 and the upper movable arm 24 rotate with the lower support shaft 25 as the axis. The upper support seat 19 is driven to adjust the height, and the upper support seat 19 drives the second sleeve 20 to adjust the height, and the second sleeve 20 drives the second support arc plate 22 to adjust the height through the second movable shaft 21. Under the active support of the first sleeve 14 and the first support arc plate 16 by the first movable shaft 15, the second support arc plate 22 drives the shell 1 as a whole to rotate at an angle with the first movable shaft 15 as the axis, so as to facilitate the fluid inside the shell 1 to flow out at an angle, so as to complete the use of the shell and tube heat exchanger.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A shell and tube heat exchanger for food processing equipment, comprising a shell (1) and a tube sheet (2), characterized in that: A tube sheet (2) is mounted on the outer wall of the shell (1), a tube box (3) is mounted on the outer wall of the tube sheet (2), a partition (6) is arranged inside the tube box (3), and the partition (6) is connected to the tube sheet (2), a tube side inlet (4) is arranged at the top end of the tube box (3), a tube side outlet (5) is arranged at the bottom end of the tube box (3), a plurality of groups of U-shaped heat exchange tubes (11) are mounted inside the shell (1) on one side of the tube sheet (2), and The U-shaped heat exchange tubes (11) all extend to the outside of the tube sheet (2), and tie rods (9) are symmetrically installed inside the shell (1) on one side of the U-shaped heat exchange tube (11). Multiple groups of baffles (10) are installed on the outer wall of the tie rods (9), and the baffles (10) are connected to the U-shaped heat exchange tubes (11). The top end of the shell (1) is provided with a shell-side inlet (7), and the bottom end of the shell (1) on one side of the tube box (3) is provided with a shell-side outlet (8).

2. A shell and tube heat exchanger for food processing equipment according to claim 1, characterized in that: A first base (12) is provided at the bottom end of the shell (1) on the side of the shell-side outlet (8), a support arm (13) is installed at the top end of the first base (12), a first shaft sleeve (14) is installed at the top end of the support arm (13), a first support arc plate (16) is installed at the bottom end of the shell (1) above the first shaft sleeve (14), a first movable shaft (15) is installed at the bottom end of the first support arc plate (16), and the first shaft sleeve (14) is movably connected to the first support arc plate (16) via the first movable shaft (15).

3. A shell and tube heat exchanger for food processing equipment according to claim 2, characterized in that: A second base (17) is arranged at the bottom end of the shell (1) on one side of the first base (12); a lower support seat (18) is installed at the top end of the second base (17); an upper support seat (19) is arranged at the top end of the lower support seat (18); a second shaft sleeve (20) is installed at the top end of the upper support seat (19); a second support arc plate (22) is installed at the bottom end of the shell (1) above the second shaft sleeve (20); a second movable shaft (21) is installed at the bottom end of the second support arc plate (22); and the second shaft sleeve (20) is movably connected to the second support arc plate (22) via the second movable shaft (21).

4. The shell and tube heat exchanger for food processing equipment according to claim 3, characterized in that: The lower movable arms (23) are symmetrically arranged inside the lower support seat (18), and the lower movable arms (23) are all installed with lower support shafts (25) at one end close to the lower support seat (18), and the lower movable arms (23) are movably connected to the lower support seat (18) through the lower support shafts (25).

5. The shell and tube heat exchanger for food processing equipment according to claim 4, characterized in that: An upper movable arm (24) is provided at one end of the lower movable arm (23) away from the lower support seat (18), and a connecting shaft (26) is installed at one end of the upper movable arm (24) close to the lower movable arm (23), and the upper movable arm (24) is movably connected to the lower movable arm (23) via the connecting shaft (26).

6. The shell and tube heat exchanger for food processing equipment according to claim 5, characterized in that: An upper support shaft (33) is installed at one end of the upper movable arm (24) close to the upper support seat (19), and the upper movable arm (24) is movably connected to the upper support seat (19) via the upper support shaft (33).

7. The shell and tube heat exchanger for food processing equipment according to claim 3, characterized in that: A movable frame (27) is arranged outside the lower support seat (18), a servo motor (28) is installed on the outer wall of the movable frame (27), and the servo motor (28) extends to the inside of the movable frame (27), a first gear (29) is installed at the output end of the servo motor (28), and a threaded rod (30) is movably installed inside the movable frame (27) on one side of the servo motor (28), and the threaded rod (30) extends to the outside of the movable frame (27).

8. The shell and tube heat exchanger for food processing equipment according to claim 7, characterized in that: A second gear (31) is sleeved on the surface of the threaded rod (30) on one side of the first gear (29), and the first gear (29) and the second gear (31) are meshed with each other; a movable sleeve (34) is sleeved on the surface of a group of connecting shafts (26) on one side of the threaded rod (30), and the threaded rod (30) and the movable sleeve (34) are movably connected, and the movable sleeve (34) is connected to the movable frame (27); a threaded block (32) is sleeved on the surface of another group of connecting shafts (26), and the threaded rod (30) and the threaded block (32) are threadedly connected.

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