Pass partition plate structure of heat exchanger

Abstract

The invention relates to a pass partition plate structure of a heat exchanger, which comprises a tube box barrel and a tube plate, and is characterized in that the pass partition plate structure comprises a vertical partition plate welded with the tube box barrel, a transverse partition plate welded with the vertical partition plate and the tube box barrel and a connecting plate welded with the transverse partition plate, and the distance between the connecting plate and the tube plate is 95-105mm; the connecting plate comprises an upper frame strip, a lower frame strip, a left frame strip, a right frame strip, a middle vertical frame strip and a plurality of middle transverse frame strips, so that a plurality of openings are formed in the connecting plate, the left frame strip and the right frame strip are respectively welded with the tube box barrel, a cover plate is correspondingly arranged at each opening, and the cover plates are arranged on the upper frame strip and the lower frame strip. The cover plate is connected with the connecting plate through a plurality of fixing pieces, a plurality of pass partition plates are arranged between the connecting plate and the tube plate, one end of each pass partition plate is welded to the connecting plate, the other end of each pass partition plate is welded to the tube plate, the two sides of each pass partition plate are welded to the tube box barrel, and therefore follow-up overhaul can be facilitated.

Description

[Technical field]

[0001] The invention relates to the field of heat exchangers, and in particular to a partition plate structure of a heat exchanger. [Background technology]

[0002] The shell and tube heat exchanger is mainly composed of a shell, a tube bundle, a baffle and a head. The shell is mostly circular, with parallel tube bundles or spiral tubes installed inside. The two fluids for heat exchange in the shell and tube heat exchanger, one flows inside the tube, and its stroke is called the tube side; the other flows outside the tube, and its stroke is called the shell side. Please refer to the prior art Chinese Patent No. 202320753936.6, which discloses a heat exchanger structure in the prior art. In this heat exchanger, a partition plate is arranged in the tube box to divide the tube box into two upper and lower chambers. Please refer to the prior art Chinese Patent No. 202321541658.4, which discloses another heat exchanger structure in the prior art, which divides the tube side by arranging a left sleeve and a right sleeve. The defects of the partition plate structure in the above two prior arts are: 1. The partition plate and the tube box are connected in an inseparable manner. When the welding points between the tube sheet and the heat exchange tube need to be regularly inspected and repaired later, the partition plate needs to be destructively removed.

[0003] Therefore, it is necessary to provide a heat exchanger partition structure that solves the above-mentioned technical problems. [Summary of the invention]

[0004] In order to solve the above problems, the object of the present invention is to provide a partition plate structure of a heat exchanger which can facilitate subsequent maintenance.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a heat exchanger partition structure, comprising: a tube box cylinder and a tube sheet, the partition structure comprising: a vertical partition welded to the tube box cylinder, a transverse partition welded to the vertical partition and the tube box cylinder, and a connecting plate welded to the transverse partition, the spacing between the connecting plate and the tube sheet is 95-105mm, the connecting plate is arranged in a frame shape, and the connecting plate comprises: an upper frame bar, a lower frame bar, a left frame bar, a right frame bar, a middle vertical frame bar and a plurality of A middle horizontal frame bar is formed on the connecting plate, thereby forming a plurality of openings on the connecting plate, the left frame bar and the right frame bar are respectively welded to the tube box cylinder, a cover plate is correspondingly arranged at each opening, the cover plate and the connecting plate are connected by a plurality of fixing parts, a handle is arranged on the outer side of the cover plate, a plurality of partition plates are arranged between the connecting plate and the tube plate, one end of the partition plate is welded to the connecting plate, the other end of the partition plate is welded to the tube plate, and both sides of the partition plate are respectively welded to the tube box cylinder.

[0006] Preferably, the partition plate structure of a heat exchanger in the present invention is further configured as follows: a gasket is provided between the cover plate and the connecting plate.

[0007] Preferably, the partition plate structure of a heat exchanger in the present invention is further configured as follows: the shape of the gasket is the same as the shape of the connecting plate.

[0008] Preferably, a partition plate structure of a heat exchanger in the present invention is further configured as follows: the fixing parts are bolts, and the upper frame bar, lower frame bar, left frame bar, right frame bar, middle vertical frame bar and several middle horizontal frame bars of the connecting plate are provided with evenly arranged bolt mounting holes.

[0009] Preferably, a partition plate structure of a heat exchanger in the present invention is further configured as follows: the number of the middle vertical frame bars is one, the number of the middle horizontal frame bars is four, the number of the openings and cover plates is six, and the openings are arranged side by side in pairs.

[0010] Preferably, the partition plate structure of a heat exchanger in the present invention is further configured as follows: the vertical partition plates are vertically arranged to the transverse partition plates, and the transverse partition plates are vertically arranged to the connecting plates.

[0011] Preferably, the partition plate structure of a heat exchanger in the present invention is further configured as follows: a plurality of partition plates are arranged in parallel.

[0012] Preferably, the partition plate structure of a heat exchanger in the present invention is further configured as follows: a drain hole is provided on the partition plate.

[0013] Preferably, the step partition structure of a heat exchanger in the present invention is further configured as follows: the number of the step partitions is three.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the partition structure of the present invention sets a smaller spacing between the connecting plate and the tube sheet. By opening each cover plate, workers can see the welding conditions of the heat exchange tube and the tube sheet at the cover plate. Compared with the fixed partition structure of the prior art, the present invention improves it into a frame-type connecting plate and multiple cover plate structures, which greatly facilitates subsequent maintenance work. Moreover, the number of partitions between the connecting plate and the tube sheet of this structure can be determined according to the specific requirements of the tube pass setting, and is suitable for multi-tube pass conditions.

Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the main structure of the partition structure in the present invention.

[0016] Figure 2 It is a side view structural schematic diagram of the partition plate structure in the present invention.

[0017] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.

[0018] Figure 4 It is a structural diagram of the connecting plate.

[0019] Figure 5 Schematic diagram of the structure of the gasket.

[0020] Figure 6 This is a schematic diagram of the structure of the cover at one angle.

[0021] Figure 7 This is a schematic diagram of the structure of the cover from another angle.

[0022] Figures 1 to 7 Middle: 1. Tube box cylinder, 2. Tube sheet, 3. Vertical partition, 4. Horizontal partition, 5. Connecting plate, 50. Upper frame bar, 51. Lower frame bar, 52. Left frame bar, 53. Right frame bar, 54. Middle vertical frame bar, 55. Middle horizontal frame bar, 56. Opening, 57. Cover plate, 570. Handle, 58. Gasket, 6. Fixing part, 7. Bolt mounting hole, 8. Partition partition, 80. Drain hole. [Specific implementation method]

[0023] The partition plate structure of a heat exchanger according to the present invention is further described in detail below through specific embodiments.

[0024] Ginseng Figures 1 to 7 As shown, a heat exchanger partition structure includes: a tube box cylinder 1 and a tube sheet 2, the partition structure includes: a vertical partition 3 welded to the tube box cylinder 1, a transverse partition 4 welded to the vertical partition 3 and the tube box cylinder 1, and a connecting plate 5 welded to the transverse partition 4, the vertical partition 3 and the transverse partition 4 are vertically arranged, and the transverse partition 4 and the connecting plate 5 are vertically arranged. The spacing between the connecting plate 5 and the tube sheet 2 is 95-105mm. In this embodiment, the spacing between the connecting plate 5 and the tube sheet 2 is 100mm. The reason why this spacing is designed to be so small is to enable workers to see the welding position of the heat exchange tube (not shown) and the tube sheet 2 at the opening 56 by opening the cover plate 57 during maintenance, without the need to dismantle the entire partition structure during maintenance as in the prior art.

[0025] The connecting plate 5 is arranged in a frame shape, and includes: an upper frame bar 50, a lower frame bar 51, a left frame bar 52, a right frame bar 53, a middle vertical frame bar 54 and a plurality of middle horizontal frame bars 55, so as to form a plurality of openings 56 on the connecting plate 5. In this embodiment, the number of the middle vertical frame bar 54 is one, the number of the middle horizontal frame bars 55 is four, the number of the openings 56 and the cover plates 57 is six, and the openings 56 are arranged side by side in pairs. The left frame bar 52 and the right frame bar 53 are respectively welded to the tube box cylinder 1, and a cover plate 57 is correspondingly arranged at each opening 56. A gasket 58 is also arranged between the cover plate 57 and the connecting plate 5, and the shape of the gasket 58 is the same as that of the connecting plate 5. The provision of the gasket 58 can increase its sealing performance. The cover plate 57 is connected to the connecting plate 5 via a plurality of fixing members 6. In the present embodiment, the fixing members 6 are bolts. The upper frame bar 50, the lower frame bar 51, the left frame bar 52, the right frame bar 53, the middle vertical frame bar 54 and a plurality of middle horizontal frame bars 55 of the connecting plate 5 are all provided with evenly arranged bolt mounting holes 7.

[0026] A handle 570 is provided on the outside of the cover plate 57. The handle 570 is convenient for workers to operate. A plurality of partition plates 8 are provided between the connection plate 5 and the tube sheet 2. In this embodiment, there are three partition plates 8, which are arranged in parallel. One end of the partition plate 8 is welded to the connection plate 5, and the other end of the partition plate 8 is welded to the tube sheet 2. Both sides of the partition plate 8 are respectively welded to the tube box cylinder 1. A drain hole 80 is provided on the partition plate 8, which is used to drain the tube medium when the vehicle is stopped.

[0027] In summary, the partition plate structure of the present invention sets a smaller distance between the connecting plate 5 and the tube sheet 2. By opening each cover plate, the worker can see the welding condition of the heat exchange tube and the tube sheet 2 at the cover plate 57. Compared with the fixed partition plate structure in the prior art, the present invention improves it into a frame-type connecting plate 5 and multiple cover plates 57 structure, which greatly facilitates the subsequent maintenance work. Moreover, the number of partition plates 8 between the connecting plate 5 and the tube sheet 2 of this structure can be determined according to the specific requirements of the tube pass setting, and is suitable for multi-tube pass conditions.

[0028] The above-mentioned embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A heat exchanger partition structure, comprising: The pipe box cylinder and tube sheet are characterized in that: the partition plate structure includes: a vertical partition plate welded to the pipe box cylinder, a transverse partition plate welded to the vertical partition plate and the pipe box cylinder, and a connecting plate welded to the transverse partition plate. The spacing between the connecting plate and the tube sheet is 95-105 mm. The connecting plate is arranged in a frame shape. The connecting plate includes: an upper frame bar, a lower frame bar, a left frame bar, a right frame bar, a middle vertical frame bar and a plurality of middle transverse frame bars, thereby forming a plurality of openings on the connecting plate. The left frame bar and the right frame bar are respectively welded to the pipe box cylinder. A cover plate is correspondingly arranged at each opening. The cover plate and the connecting plate are connected by a plurality of fixings. A handle is arranged on the outer side of the cover plate. A plurality of partition plates are arranged between the connecting plate and the tube sheet. One end of the partition plate is welded to the connecting plate, and the other end of the partition plate is welded to the tube sheet. Both sides of the partition plate are respectively welded to the pipe box cylinder.

2. The heat exchanger partition structure according to claim 1, characterized in that: A gasket is also provided between the cover plate and the connecting plate.

3. The heat exchanger partition structure according to claim 2, characterized in that: The shape of the gasket is the same as that of the connecting plate.

4. The heat exchanger partition structure according to claim 1, characterized in that: The fixing members are bolts, and evenly arranged bolt mounting holes are provided on the upper frame bar, the lower frame bar, the left frame bar, the right frame bar, the middle vertical frame bar and several middle horizontal frame bars of the connecting plate.

5. The heat exchanger partition structure according to claim 1, characterized in that: The number of the middle vertical frame bar is one, the number of the middle horizontal frame bars is four, the number of the openings and cover plates is six, and the openings are arranged side by side in pairs.

6. The heat exchanger partition structure according to claim 1, characterized in that: The vertical partitions are arranged vertically to the transverse partitions, and the transverse partitions are arranged vertically to the connecting plates.

7. The heat exchanger partition structure according to claim 1, characterized in that: A plurality of partition plates are arranged in parallel.

8. The heat exchanger partition structure according to claim 1, characterized in that: The step partition is provided with a drain hole.

9. The heat exchanger partition structure according to claim 1, characterized in that: The number of the partition plates is three.

Images