Baffle plate of tubular heat exchanger

Abstract

The utility model relates to the technical field of heat exchange, and discloses a tube type heat exchanger baffle plate which comprises a baffle plate body, a plurality of round holes are formed in the front surface of the baffle plate body, six installation holes are formed in the front surface of the baffle plate body, a guide plate is fixedly connected to the edge of the front surface of the baffle plate body, a turbulent flow mechanism is arranged on the baffle plate body, and the turbulent flow mechanism is arranged on the baffle plate body. The flow disturbing mechanism comprises a mounting plate and wing-shaped fins, the mounting plate is fixedly mounted at the lower end of the front surface of the baffle plate, a connecting plate is arranged at the front end of the mounting plate, and the wing-shaped fins and the guide plate are arranged, so that the wing-shaped fins play a role in disturbing fluid; the guide plate can guide fluid at the junction of the baffle plate and the inner wall of the shell so that the fluid can flow through the baffle plate to achieve turbulent flow, the positions of the wing-shaped fins can be adjusted to optimize the turbulent flow effect, disturbance of the fluid in the whole shell pass is more uniform, and the heat transfer efficiency of the heat exchanger is further improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, specifically a baffle plate for a shell-and-tube heat exchanger. Background Technology

[0002] Shell-and-tube heat exchangers are a common type of indirect heat exchanger. They are mainly composed of tube bundles, tube sheets, shells, end caps, and baffles. Their working principle is to allow two fluids at different temperatures to flow in the tube side and shell side respectively, exchanging heat through the metal tube walls. They have advantages such as robust structure, ability to withstand high pressure and temperature, wide applicability to various media, and high heat transfer efficiency. However, they also have disadvantages such as large size, complex cleaning and maintenance, and large pressure drop. They are widely used in many fields such as chemical industry, power, refrigeration, food processing, and shipbuilding, and are important equipment for realizing heat exchange and transfer.

[0003] Currently, when using shell-and-tube heat exchangers, baffles are usually installed inside to continuously change the flow direction of the fluid in order to improve the heat transfer coefficient and facilitate better heat exchange of the internal fluid. Most of the baffles currently used are arc-shaped baffles. However, when using arc-shaped baffles, the fluid flow velocity is low at the junction of the baffle and the inner wall of the shell, which can easily form a flow dead zone. This leads to a decrease in heat transfer efficiency in some areas, affecting the overall performance of the heat exchanger and hindering its use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a baffle plate for a shell-and-tube heat exchanger. This solves the problem that when using an arc-shaped baffle plate to change the direction of fluid flow, the fluid flow velocity is low at the interface between the baffle plate and the inner wall of the shell, which easily forms a flow dead zone. This leads to a reduction in heat transfer efficiency in some areas, affecting the overall performance of the heat exchanger and hindering its use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a baffle plate for a shell-and-tube heat exchanger, comprising a baffle plate, a plurality of circular holes being formed on the front surface of the baffle plate, six mounting holes being formed on the front surface of the baffle plate, and a guide plate being fixedly connected to the edge of the front surface of the baffle plate;

[0008] The turbulence mechanism is set on the deflector plate. The turbulence mechanism includes a mounting plate and airfoil fins. The mounting plate is fixedly installed on the lower end of the front surface of the deflector plate. A connecting plate is provided at the front end of the mounting plate. The airfoil fins are fixedly installed on the upper surface of the connecting plate. A rectangular groove is opened on the front surface of the mounting plate. A rectangular plate is slidably inserted into the rectangular groove. The front end of the rectangular plate is fixedly connected to the connecting plate.

[0009] Preferably, the turbulence mechanism further includes a threaded rod, which is rotatably mounted on the rear inner wall of the rectangular groove. The rectangular plate has a threaded groove inside, and the threaded rod is threadedly inserted into the threaded groove. The mounting plate has a mounting groove inside.

[0010] Preferably, a throttle handle is rotatably mounted on the right surface of the mounting plate, the left end of the throttle handle extends into the interior of the mounting groove, the rear end of the threaded rod rotatably extends into the interior of the mounting groove, and a first bevel gear is fixedly mounted on the rear end of the threaded rod.

[0011] Preferably, a second bevel gear is fixedly installed at the rear end of the threaded rod and the left end of the throttle, and the first bevel gear and the second bevel gear are meshed with each other.

[0012] Preferably, the right surface of the mounting plate is fixedly connected with a scale line corresponding to the position of the throttle.

[0013] Preferably, there are two turbulence-disrupting mechanisms, which are installed in a mirror image of each other.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a baffle plate for a shell-and-tube heat exchanger, which has the following advantages:

[0016] 1. The baffle plate of this shell-and-tube heat exchanger, through the arrangement of multiple airfoil fins and guide plates, allows the airfoil fins to turbulent the fluid, while the guide plates can guide the fluid at the interface between the baffle plate and the inner wall of the shell, allowing it to flow through the baffle plate to achieve turbulence. Furthermore, the position of the airfoil fins can be adjusted to optimize the turbulence effect, making the turbulence of the fluid more uniform throughout the shell side, and further improving the heat transfer efficiency of the heat exchanger. Attached Figure Description

[0017] Figure 1 This is a top view schematic diagram of the overall structure of the baffle plate of the shell-and-tube heat exchanger of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal cross-sectional side view of the baffle plate of the shell-and-tube heat exchanger of this utility model;

[0019] Figure 3 This is a top view of the internal cross-section of the baffle plate of the shell-and-tube heat exchanger of this utility model;

[0020] Figure 4 This is a cross-sectional view of the turbulence mechanism of this utility model.

[0021] In the diagram: 1. Baffle plate; 2. Circular hole; 3. Mounting hole; 4. Guide plate; 5. Mounting plate; 6. Airfoil fin; 7. Connecting plate; 8. Rectangular groove; 9. Rectangular plate; 10. Threaded rod; 11. Threaded groove; 12. Mounting groove; 13. Throttle; 14. First bevel gear; 15. Second bevel gear; 16. Scale line. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a new technical solution: a tube-and-shell heat exchanger baffle plate, including a baffle plate 1, a plurality of circular holes 2 are opened on the front surface of the baffle plate 1, six mounting holes 3 are opened on the front surface of the baffle plate 1, and a guide plate 4 is fixedly connected to the edge of the front surface of the baffle plate 1.

[0024] The turbulence mechanism is mounted on the deflector plate 1. The turbulence mechanism includes a mounting plate 5 and an airfoil 6. The mounting plate 5 is fixedly mounted on the lower end of the front surface of the deflector plate 1. A connecting plate 7 is provided at the front end of the mounting plate 5. The airfoil 6 is fixedly mounted on the upper surface of the connecting plate 7. A rectangular groove 8 is provided on the front surface of the mounting plate 5. A rectangular plate 9 is slidably inserted into the rectangular groove 8. The front end of the rectangular plate 9 is fixedly connected to the connecting plate 7.

[0025] Furthermore, the turbulence mechanism also includes a threaded rod 10, which is rotatably mounted on the rear inner wall of the rectangular groove 8. The rectangular plate 9 has a threaded groove 11 inside, and the threaded rod 10 is threadedly inserted into the threaded groove 11. The mounting plate 5 has a mounting groove 12 inside.

[0026] Furthermore, by setting multiple airfoil fins 6 and guide plates 4, the airfoil fins 6 all play a turbulence role on the fluid. The guide plate 4 can guide the fluid at the junction of the baffle and the inner wall of the shell, so that it can flow through the baffle 1 to achieve turbulence. The position of the airfoil fins 6 can be adjusted to optimize the turbulence effect, making the turbulence of the fluid more uniform throughout the shell side, and further improving the heat transfer efficiency of the heat exchanger.

[0027] Furthermore, a throttle 13 is rotatably mounted on the right surface of the mounting plate 5, the left end of the throttle 13 extends into the interior of the mounting groove 12, the rear end of the threaded rod 10 rotatably extends into the interior of the mounting groove 12, and a first bevel gear 14 is fixedly mounted on the rear end of the threaded rod 10.

[0028] Furthermore, a second bevel gear 15 is fixedly installed at the rear end of the threaded rod 10 and the left end of the throttle 13, and the first bevel gear 14 and the second bevel gear 15 are meshed with each other.

[0029] Furthermore, a scale line 16 is fixedly connected to the right surface of the mounting plate 5 at the position corresponding to the throttle 13.

[0030] Furthermore, there are two aerodynamic spoilers, which are installed in a mirror image of each other, one above the other.

[0031] Furthermore, when using this baffle plate, multiple baffle plates 1 to be installed are assembled using the six mounting holes 3 on the front surface of the baffle plate 1 and the support tube bundle. The assembled baffle plate is then installed inside the shell of the shell-and-tube heat exchanger. If the position of the airfoil fins 6 needs to be adjusted to optimize the turbulence effect during installation, this can be achieved by rotating the handle 13. When the handle 13 is rotated, the second bevel gear 15 at its left end rotates accordingly. Since the first bevel gear 14 and the second bevel gear 15 are meshed together, the first bevel gear 14 will drive the threaded rod 10 to rotate. The threaded rod 10 is threaded into the threaded groove 11 inside the rectangular plate 9. Therefore, the rotation of the threaded rod 10 will cause the rectangular plate 9 to slide within the rectangular groove 8, thereby causing the connecting plate 7 and the airfoil fins 6 to move back and forth. The scale line 16 on the right surface of the mounting plate 5 helps the operator accurately grasp the moving distance of the airfoil 6, enabling more precise adjustment of multiple airfoil 6. The airfoil 6 at the upper and lower positions of the baffle 1 both play a turbulent role in the fluid, making the turbulence of the fluid more uniform throughout the shell side, further improving the heat transfer efficiency and the overall performance of the heat exchanger. When the shell-and-tube heat exchanger starts working, the shell-side fluid flows through the circular hole 2 on the baffle 1. The circular hole 2 allows the fluid to pass through the tube bundle evenly and exchange heat with the fluid inside the tube. The baffle 1 changes the flow direction of the fluid, making the fluid form a tortuous flow path in the shell side, increasing the degree of turbulence of the fluid, destroying the laminar boundary layer of the fluid, thereby improving the heat transfer efficiency. The setting of the guide plate 4 guides the fluid flowing through the interface between the baffle and the inner wall of the shell, allowing the fluid at this point to flow through the baffle 1.

[0032] Structural Description: Baffle 1: As a key component inside the heat exchanger, the main function of baffle 1 is to change the direction of fluid flow, increase the degree of fluid turbulence, and improve heat exchange efficiency;

[0033] Circular hole 2: used for fluid passage, creating baffles inside the heat exchanger, increasing the contact area between the fluid and the heat exchange tubes, and improving heat exchange efficiency;

[0034] Mounting hole 3: used to fix the support tube bundle so that multiple baffles 1 can be assembled and used to ensure the stability of the baffles and the normal operation of the heat exchanger;

[0035] Guide plate 4: Located at the front edge of the baffle plate 1, it guides the direction of fluid flow, allowing the fluid at the boundary to pass through the baffle plate 1 more quickly;

[0036] Mounting plate 5: As a supporting part of the turbulence mechanism, it is fixed to the lower end of the front surface of the baffle plate 1, providing a mounting base for other components;

[0037] Airfoil 6: Fixed to the connecting plate 7, used to increase the turbulence of the fluid and improve heat exchange efficiency;

[0038] Connecting plate 7: Connects mounting plate 5 and airfoil 6 to form a whole spoiler mechanism;

[0039] Rectangular groove 8: Set on the front surface of mounting plate 5, used to slide and insert rectangular plate 9 to adjust the distance between airfoil fin 6 and baffle 1;

[0040] Rectangular plate 9: It is slidably inserted into the rectangular slot 8. By adjusting the position of the rectangular plate 9, the distance between the airfoil 6 and the baffle 1 can be changed.

[0041] Threaded rod 10: Rotatably mounted on the rear inner wall of rectangular groove 8, and adjusted by threading into the threaded groove 11 of rectangular plate 9;

[0042] Threaded groove 11: Located inside the rectangular plate 9, it cooperates with the threaded rod 10 to realize the adjustment of the rectangular plate 9;

[0043] Mounting slot 12: Located inside the mounting plate 5, used to fix the rear end of the threaded rod 10 and the left end of the throttle 13;

[0044] Rotary handle 13: Rotary and mounted on the right surface of mounting plate 5. By operating rotary handle 13, threaded rod 10 is rotated, thereby adjusting the position of rectangular plate 9.

[0045] First bevel gear 14: Fixedly installed at the rear end of threaded rod 10, meshing with second bevel gear 15 to realize the transmission between throttle 13 and threaded rod 10;

[0046] The second bevel gear 15 is fixedly installed at the rear end of the threaded rod 10 and the left end of the throttle 13, and meshes with the first bevel gear 14 to transmit rotation.

[0047] Scale line 16: Fixed on the right surface of the mounting plate 5, corresponding to the position of the throttle 13, used to display and adjust the position of the rectangular plate 9.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A baffle plate for a shell-and-tube heat exchanger, comprising a baffle plate (1), wherein the front surface of the baffle plate (1) has a plurality of circular holes (2) and six mounting holes (3) are provided on the front surface of the baffle plate (1), characterized in that: A guide plate (4) is fixedly connected to the front surface edge of the baffle (1); The turbulence mechanism is set on the deflector plate (1). The turbulence mechanism includes a mounting plate (5) and an airfoil (6). The mounting plate (5) is fixedly installed on the lower end of the front surface of the deflector plate (1). A connecting plate (7) is provided at the front end of the mounting plate (5). The airfoil (6) is fixedly installed on the upper surface of the connecting plate (7). A rectangular groove (8) is opened on the front surface of the mounting plate (5). A rectangular plate (9) is slidably inserted into the rectangular groove (8). The front end of the rectangular plate (9) is fixedly connected to the connecting plate (7).

2. The baffle plate of a shell-and-tube heat exchanger according to claim 1, characterized in that: The turbulence mechanism also includes a threaded rod (10), which is rotatably mounted on the rear inner wall of the rectangular groove (8). The rectangular plate (9) has a threaded groove (11) inside, and the threaded rod (10) is threaded into the threaded groove (11). The mounting plate (5) has a mounting groove (12) inside.

3. A baffle plate for a shell-and-tube heat exchanger according to claim 2, characterized in that: A throttle (13) is rotatably mounted on the right surface of the mounting plate (5). The left end of the throttle (13) extends into the interior of the mounting groove (12). The rear end of the threaded rod (10) rotatably extends into the interior of the mounting groove (12). A first bevel gear (14) is fixedly mounted on the rear end of the threaded rod (10).

4. A baffle plate for a shell-and-tube heat exchanger according to claim 3, characterized in that: The rear end of the threaded rod (10) and the left end of the throttle (13) are both fixedly installed with a second bevel gear (15), and the first bevel gear (14) and the second bevel gear (15) are meshed with each other.

5. A baffle plate for a shell-and-tube heat exchanger according to claim 3, characterized in that: The right surface of the mounting plate (5) is fixedly connected with a scale line (16) corresponding to the position of the throttle (13).

6. A baffle plate for a shell-and-tube heat exchanger according to claim 1, characterized in that: There are two flow-disrupting mechanisms, which are installed in a mirror image of each other, one above the other.

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