Falling film evaporator capable of adjusting spacing of evaporating pipes

Abstract

The utility model discloses a falling film evaporator capable of adjusting the spacing of evaporating tubes, which comprises an outer tube, connecting rings are fixedly connected inside the outer tube through connecting discs, the connecting discs are arranged up and down, a support rod is fixedly connected to the opposite sides of the connecting rings, and tube plates are arranged on the inner surfaces of the connecting rings in a sliding manner. When the distance between the tube bodies needs to be adjusted, only the tube plates need to be replaced, so that the mounting holes formed in the tube plates are regular triangles or regular triangular plate bodies, only the sliding blocks on the peripheries of the tube plates need to be embedded into the inner surfaces of the embedding grooves and slide clockwise, so that the sliding blocks slide on the inner surfaces of the sliding grooves and the through grooves, and then the tube plates can be adjusted. After the pipe plate slides to the corresponding position of the threaded hole, the threaded bolt rotates on the inner surface of the threaded cylinder in a threaded mode, so that the bottom end face of the threaded bolt is driven to be connected to the inner surface of the threaded hole in a threaded mode, by arranging the structure, the purpose of replacing the pipe plate can be achieved, and the corresponding evaporation pipe body is inserted into the inner surface of the mounting hole.

Description

Technical Field

[0001] This utility model belongs to the field of evaporator technology, and in particular relates to a falling film evaporator with adjustable evaporator tube spacing. Background Technology

[0002] The multiple tube sheets of a falling film evaporator are an important part of its heating evaporation chamber. They generally consist of an upper tube sheet, a lower tube sheet, and sometimes an intermediate baffle. The working principle is to utilize the liquid material to form a uniform liquid film that flows from top to bottom along the inner wall of the heating tube under the action of gravity, vacuum induction, and airflow. During this process, the liquid is heated and vaporized by the heating medium, thus achieving evaporation and concentration.

[0003] Existing evaporator tubes are installed in holes in tube sheets. Since the holes are generally spaced at a fixed interval, the spacing cannot be adjusted according to requirements. An unreasonable spacing may lead to uneven flow of the heating medium, resulting in localized excessively fast or slow flow rates. This can cause localized overheating of the evaporator tubes, affecting the evaporation effect of the material and even causing problems such as material deterioration and coking. To address these issues, we propose a falling film evaporator with adjustable evaporator tube spacing to solve the problems existing in the current technology. Utility Model Content

[0004] The purpose of this invention is to provide a falling film evaporator with adjustable evaporator tube spacing, which allows for adjustment of the installation hole spacing, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A falling film evaporator with adjustable evaporator tube spacing includes an outer tube. A connecting ring is fixedly connected to the inside of the outer tube via a connecting plate. The connecting plate is arranged vertically. A support rod is fixedly connected to the opposite side of the connecting ring. A tube plate is slidably arranged on the inner surface of the connecting ring. The surface of the tube plate is divided into multiple units. The inside of the tube plate has mounting holes, which can be arranged in a square or an equilateral triangle. A sliding block is fixedly connected to the surface of the tube plate. A threaded cylinder is fixedly connected to the top of the sliding block. A threaded bolt is threadedly connected to the inner surface of the threaded cylinder. A groove is provided at the top of the connecting ring and at a position corresponding to the sliding block. A sliding groove is provided at the part of the connecting ring. The sliding groove communicates with the groove. A through groove is provided on the inner surface of the connecting ring. The through groove communicates with the sliding groove. A threaded hole is provided at the bottom of the inner cavity of the sliding groove. The threaded bolt passes through the threaded cylinder and is threadedly connected to the inner surface of the threaded hole.

[0006] Preferably, the outer surface of the sliding block is designed with an arc shape, and the outer surface of the sliding block slides with the inner surface of the sliding groove and the through groove.

[0007] Preferably, after the sliding block is embedded in the inner surface of the groove, it rotates clockwise on the inner surface of the sliding groove.

[0008] Preferably, the initial position of the end face at the bottom of the threaded bolt is located on the inner surface of the threaded cylinder.

[0009] Preferably, there are multiple mounting holes, and the inner surface of each mounting hole can be fitted with a corresponding evaporator tube.

[0010] The beneficial effects of this utility model are:

[0011] 1. When it is necessary to adjust the spacing of the tubes, this utility model only requires replacing the tube sheet so that the mounting holes inside the tube sheet are in the shape of an equilateral triangle or an equilateral triangle plate. Simply embed the sliding block around the tube sheet into the inner surface of the groove and slide the sliding block clockwise so that the sliding block slides on the inner surface of the sliding groove and the through groove. When it slides to the corresponding position of the threaded hole, the threaded bolt rotates on the inner surface of the threaded cylinder, thereby driving the bottom end face of the threaded bolt to be threadedly connected to the inner surface of the threaded hole. By setting the above structure, the purpose of replacing the tube sheet can be achieved, so that the corresponding evaporator tubes can be inserted into the inner surface of the mounting holes, thereby achieving the purpose of adjusting the spacing of the mounting holes.

[0012] 2. By setting the outer surface of the sliding block to an arc shape, this utility model facilitates the sliding of the sliding block on the inner surface of the sliding groove and the through groove, making the sliding of the sliding block smoother.

[0013] 3. This utility model sets the initial position of the bottom end face of the threaded bolt to be located on the inner surface of the threaded cylinder, thus avoiding the threaded bolt being too low and contacting the inner surface of the sliding groove, thereby hindering the sliding of the sliding block. Attached Figure Description

[0014] in:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connecting ring structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the tube sheet structure of this utility model;

[0018] Figure 4 This is a partial enlarged view of point A of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Outer tube, 2. Connecting plate, 3. Connecting ring, 4. Tube sheet, 5. Support rod, 6. Mounting hole, 7. Sliding block, 8. Threaded cylinder, 9. Threaded bolt, 10. Embedded groove, 11. Sliding groove, 12. Through groove, 13. Threaded hole, 14. Evaporator tube body. Detailed Implementation

[0021] In the following description, embodiments of the adjustable evaporator tube spacing falling film evaporator of the present invention will be described with reference to the accompanying drawings. Example

[0022] Figure 1-4 This invention illustrates an embodiment of a falling film evaporator with adjustable evaporator tube spacing, comprising an outer tube 1. A connecting ring 3 is fixedly connected to the inside of the outer tube 1 via a connecting plate 2. The connecting plate 2 is arranged vertically. A support rod 5 is fixedly connected to one side of the connecting ring 3. A tube plate 4 is slidably mounted on the inner surface of the connecting ring 3. The surface of the tube plate 4 is divided into multiple units. Multiple mounting holes 6 are provided inside the tube plate 4. Corresponding evaporator tubes 14 can be inserted into the inner surface of the mounting holes 6. The mounting holes 6 can be arranged in a square or an equilateral triangle. The tube sheet 4 is arranged such that a sliding block 7 is fixedly connected to its surface, a threaded cylinder 8 is fixedly connected to its top, and a threaded bolt 9 is threadedly connected to the inner surface of the threaded cylinder 8. A groove 10 is provided at the top of the connecting ring 3, corresponding to the position of the sliding block 7. A sliding groove 11 is provided at the bottom of the connecting ring 3, and the sliding groove 11 communicates with the groove 10. A through groove 12 is provided on the inner surface of the connecting ring 3. The outer surface of the sliding block 7 is designed with an arc shape, allowing it to slide against the inner surfaces of the sliding groove 11 and the through groove 12. By designing the outer surface of the sliding block 7 to be arc-shaped, [the design is achieved]. This facilitates the sliding of the sliding block 7 on the inner surfaces of the sliding groove 11 and the through groove 12, making the sliding of the sliding block 7 smoother. After the sliding block 7 is embedded in the inner surface of the groove 10, it rotates clockwise on the inner surface of the sliding groove 11. The through groove 12 is connected to the sliding groove 11. A threaded hole 13 is provided at the bottom of the inner cavity of the sliding groove 11. The threaded bolt 9 passes through the threaded cylinder 8 and is threadedly connected to the inner surface of the threaded hole 13. When it is necessary to adjust the spacing of the tubes, only the tube plate 4 needs to be replaced, so that the mounting holes 6 opened inside the tube plate 4 are equilateral triangles or equilateral triangle plates. Simply embed the sliding block 7 around the tube sheet 4 into the inner surface of the groove 10, and slide the sliding block 7 clockwise so that the sliding block 7 slides on the inner surface of the sliding groove 11 and the through groove 12. When it slides to the corresponding position of the threaded hole 13, the threaded bolt 9 rotates on the inner surface of the threaded cylinder 8, thereby driving the bottom end face of the threaded bolt 9 to be threadedly connected to the inner surface of the threaded hole 13. By setting the above structure, the purpose of replacing the tube sheet 4 can be achieved, so that the corresponding evaporator tube 14 can be inserted into the inner surface of the mounting hole 6, thereby achieving the purpose of adjusting the spacing of the mounting holes. Example

[0023] Figure 1-4This invention illustrates an embodiment of a falling film evaporator with adjustable evaporator tube spacing, comprising an outer tube 1. A connecting ring 3 is fixedly connected to the inside of the outer tube 1 via a connecting plate 2. The connecting plate 2 is arranged vertically. A support rod 5 is fixedly connected to one side of the connecting ring 3. A tube plate 4 is slidably mounted on the inner surface of the connecting ring 3. The surface of the tube plate 4 is divided into multiple units. Mounting holes 6 are provided inside the tube plate 4, and the mounting holes 6 can be arranged in a square or equilateral triangle. A sliding block 7 is fixedly connected to the surface of the tube plate 4. A threaded cylinder 8 is fixedly connected to the top of the sliding block 7. A threaded bolt 9 is threadedly connected to the inner surface of the threaded cylinder 8. The bottom end face of the threaded bolt 9... The initial position of the threaded bolt 9 is located on the inner surface of the threaded cylinder 8. By setting the initial position of the bottom end face of the threaded bolt 9 to be located on the inner surface of the threaded cylinder 8, the threaded bolt 9 is prevented from being too low and contacting the inner surface of the sliding groove 11, thereby hindering the sliding of the sliding block 7. The top of the connecting ring 3 and the position corresponding to the sliding block 7 are provided with a groove 10. The part of the connecting ring 3 is provided with a sliding groove 11. The sliding groove 11 and the groove 10 are connected. The inner surface of the connecting ring 3 is provided with a through groove 12. The through groove 12 and the sliding groove 11 are connected. The bottom of the inner cavity of the sliding groove 11 is provided with a threaded hole 13. The threaded bolt 9 passes through the threaded cylinder 8 and is threadedly connected to the inner surface of the threaded hole 13.

[0024] Working principle: When using this utility model, if it is necessary to adjust the spacing of the tubes, simply replace the tube sheet 4 so that the mounting holes 6 inside the tube sheet 4 are equilateral triangles or equilateral triangle plates. Simply embed the sliding blocks 7 around the tube sheet 4 into the inner surface of the groove 10 and slide the sliding blocks 7 clockwise so that the sliding blocks 7 slide on the inner surface of the sliding groove 11 and the through groove 12. When it slides to the corresponding position of the threaded hole 13, the threaded bolt 9 rotates on the inner surface of the threaded cylinder 8, thereby driving the bottom end face of the threaded bolt 9 to be threadedly connected to the inner surface of the threaded hole 13. By setting the above structure, the purpose of replacing the tube sheet 4 can be achieved, so that the corresponding evaporator tube 14 can be inserted into the inner surface of the mounting hole 6, thereby achieving the purpose of adjusting the spacing of the mounting holes. By ensuring that the initial position of the bottom end face of the threaded bolt 9 is located on the inner surface of the threaded cylinder 8, the threaded bolt 9 is prevented from being too low and contacting the inner surface of the sliding groove 11, thus preventing the sliding block 7 from sliding.

Claims

1. Adjustable falling film evaporator pipe spacing, including outer tube (1), the inside of the outer tube (1) is fixedly connected with connecting ring (3) through connecting disc (2), the connecting disc (2) is set up up and down, the opposite side of the connecting ring (3) is fixedly connected with support rod (5), characterized in that, The inner surface of the connecting ring (3) is slidably provided with a tube plate (4), the surface of the tube plate (4) is divided into a plurality of units, the inside of the tube plate (4) is provided with mounting holes (6), the mounting holes (6) can be arranged in square or equilateral triangle, the surface of the tube plate (4) is fixedly connected with a sliding block (7), the top of the sliding block (7) is fixedly connected with a threaded cylinder (8), the inner surface of the threaded cylinder (8) is threadedly connected with a threaded bolt (9), the top of the connecting ring (3) and corresponding to the sliding block (7) is provided with an embedded groove (10), the connecting ring (3) is provided with a sliding groove (11), the sliding groove (11) is communicated with the embedded groove (10), the inner surface of the connecting ring (3) is provided with a through groove (12), the through groove (12) is communicated with the sliding groove (11), the bottom of the inner cavity of the sliding groove (11) is provided with a threaded hole (13), the threaded bolt (9) penetrates through the threaded cylinder (8) and is threadedly connected with the inner surface of the threaded hole (13).

2. The evaporator according to claim 1, wherein The outer surface of the sliding block (7) is designed as an arc surface, and the outer surface of the sliding block (7) slides with the inner surfaces of the sliding groove (11) and the through groove (12).

3. The evaporator according to claim 1, wherein After the sliding block (7) is embedded in the inner surface of the embedded groove (10), it is rotated clockwise on the inner surface of the sliding groove (11).

4. The evaporator according to claim 1, wherein The initial position of the end face of the bottom of the threaded bolt (9) is located on the inner surface of the threaded cylinder (8).

5. The adjustable evaporation tube pitch falling film evaporator of claim 1, wherein, The number of the mounting holes (6) is multiple, and the inner surface of the mounting holes (6) can be inserted with corresponding evaporation pipe bodies (14).

Images