Combined marine heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a combined marine heat exchanger. According to the technical scheme, the plate-type heat exchanger comprises a transversely-installed plate-type heat exchanger body and further comprises a tubular heat exchanger body installed on the top of the plate-type heat exchanger body, and the tubular heat exchanger body is composed of a tube shell, a first tube box and a second tube box. According to the scheme, the tubular heat exchanger is redesigned, then the plate heat exchanger is transversely installed, and the tubular heat exchanger is installed on the plate heat exchanger, so that the tubular heat exchanger and the plate heat exchanger form a fluid flowing direction from top to bottom, the effect of reasonable operation of the tubular heat exchanger and the plate heat exchanger is achieved, and the space requirement for transverse installation of the tubular heat exchanger and the plate heat exchanger is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a combined marine heat exchanger. Background Art

[0002] A combined marine heat exchanger (CMHE) is a heat exchange device specifically designed for use on ships, used to efficiently transfer heat between different systems. This heat exchanger combines multiple types of heat exchanger designs to adapt to the complex requirements of the ship's environment. A CMHE typically includes multiple different types of heat exchanger components, configured according to the ship's specific needs and operating environment. A common approach is to combine tubular and plate heat exchangers. However, the existing combination of the two is large and unsuitable for the environment within the hold. The bottom of the hold is the installation compartment for the hull's power equipment, which is often quite high. However, the need to install a large amount of power equipment results in a relatively narrow lateral space. Therefore, we propose a CMHE. Utility Model Content

[0003] The purpose of the utility model is to address the problems existing in the background technology and to provide a combined marine heat exchanger.

[0004] The technical solution of the present utility model is as follows: a combined marine heat exchanger, comprising a transversely mounted plate heat exchanger and a tubular heat exchanger mounted on top of the plate heat exchanger, wherein the tubular heat exchanger is composed of a tube shell, a first tube box and a second tube box, a plurality of tube bundles are installed on both sides of the tubular heat exchanger, and the tube bundles are composed of an inlet pipe portion, an outlet pipe portion and an arc-shaped pipe portion, the inlet pipe portion is connected to the first tube box, the outlet pipe portion is connected to the second tube box, an arc-shaped pipe portion is fixed and connected between the inlet pipe portion and the outlet pipe portion, and the second tube box is connected to the fluid interface of the plate heat exchanger.

[0005] Preferably, the first tube box is fixedly installed with a first tube sheet, the second tube box is fixedly installed with a second tube sheet, the inlet pipe portion is fixed and connected with a connecting pipe, the outlet pipe portion is fixed and connected with a drain pipe, the connecting pipe is connected with the first tube box, and the drain pipe is connected with the second tube box.

[0006] Preferably, the plate heat exchanger further includes an end plate, the fluid interface is located on the end plate, and the second tube box is in contact with the end plate.

[0007] Preferably, the tubular heat exchanger further includes a first head and a second head on both sides, and the first head and the second head are both provided with an input pipe.

[0008] Preferably, support legs are fixedly installed between the tube heat exchanger and the plate heat exchanger, and baffles are fixedly installed between the multiple tube bundles.

[0009] Compared with the existing technology, the beneficial effect of the present invention is: this solution redesigns the tubular heat exchanger, then installs the plate heat exchanger horizontally, and installs the tubular heat exchanger on the plate heat exchanger, so that the two form a fluid flow direction from top to bottom, achieving the effect of reasonable operation of the two and reducing the space requirement for the horizontal installation of the two combined. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural schematic diagram of a combined marine heat exchanger proposed by the present utility model;

[0011] Figure 2 for Figure 1 Schematic diagram of the structure of the inner tube heat exchanger;

[0012] Figure 3 for Figure 1 Schematic diagram of the structure of the inner tube bundle.

[0013] Figure numerals: 1. Tubular heat exchanger; 2. Tube bundle; 3. Plate heat exchanger; 4. Support leg; 11. Tube shell; 12. First tube box; 13. Second tube box; 14. First tube sheet; 15. Second tube sheet; 16. First head; 17. Second head; 18. Inlet pipe; 21. Inlet pipe; 22. Discharge pipe; 23. Arc-shaped pipe; 24. Connecting pipe; 25. Drain pipe; 31. End plate; 32. Fluid interface. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Refer to the attached Figure 1-Figure 2 A combined marine heat exchanger includes a transversely mounted plate heat exchanger 3 and a tubular heat exchanger 1 mounted on top of the plate heat exchanger 3. The tubular heat exchanger 1 consists of a tube shell 11, a first tube box 12, and a second tube box 13. Multiple tube bundles 2 are installed on both sides of the tubular heat exchanger 1. The tube bundle 2 consists of an inlet pipe portion 21, an outlet pipe portion 22, and an arc-shaped pipe portion 23. The inlet pipe portion 21 is connected to the first tube box 12, and the outlet pipe portion 22 is connected to the second tube box 13. The arc-shaped pipe portion 23 is fixed and connected between the inlet pipe portion 21 and the outlet pipe portion 22. The second tube box 13 is connected to the fluid interface 32 of the plate heat exchanger 3.

[0016] This arrangement allows the tubular heat exchanger 1 to be installed above the plate heat exchanger 3, reducing the lateral area of ​​the two when used in combination, and by modifying the tubular heat exchanger 1, achieving the effect of reasonable operation of the two.

[0017] Specifically, the first tube box 12 is fixedly installed with a first tube sheet 14, the second tube box 13 is fixedly installed with a second tube sheet 15, the inlet pipe portion 21 is fixed and connected with a connecting pipe 24, and the outlet pipe portion 22 is fixed and connected with a drain pipe 25. The connecting pipe 24 is connected to the first tube box 12, and the drain pipe 25 is connected to the second tube box 13.

[0018] Specifically, the plate heat exchanger 3 further includes an end plate 31 , the fluid interface 32 is located on the end plate 31 , and the second pipe box 13 is in contact with the end plate 31 .

[0019] Specifically, the tubular heat exchanger 1 further includes a first head 16 and a second head 17 on both sides, and the first head 16 and the second head 17 are both provided with an inlet pipe 18.

[0020] It should be noted that support legs 4 are fixedly installed between the tube heat exchanger 1 and the plate heat exchanger 3 , and baffles are fixedly installed between the multiple tube bundles 2 .

[0021] During specific operation, hot fluid is input into the first pipe box 12, the hot fluid enters the connecting pipe 24 and enters the pipe portion 21, and then is input into the discharge pipe portion 22 through the arc-shaped pipe portion 23. Next, the cold fluid is input into the tubular heat exchanger 1 through the input pipe 18, thus forming a heat exchange. Finally, the hot fluid cooled in the tubular heat exchanger 1 is input into the second pipe box 13 through the discharge pipe 25, and then input from the second pipe box 13 into the fluid interface 32 to the plate heat exchanger 3 for another heat exchange operation, thus forming a fluid heat exchange route that completes the combination of the tubular heat exchanger 1 and the tube bundle 2.

[0022] It should also be noted that, in this embodiment, the plate heat exchanger 3 is no different from a traditional plate heat exchanger, except that the installation position is adjusted, so its working principle is not described in detail.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined marine heat exchanger, characterized in that: The invention comprises a plate heat exchanger (3) installed transversely, and also comprises a tube heat exchanger (1) installed on the top of the plate heat exchanger (3), wherein the tube heat exchanger (1) is composed of a tube shell (11), a first tube box (12) and a second tube box (13), and a plurality of tube bundles (2) are installed on both sides of the tube heat exchanger (1), wherein the tube bundle (2) is composed of an inlet tube portion (21), an outlet tube portion (22) and an arc tube portion (23), wherein the inlet tube portion (21) is connected to the first tube box (12), and the outlet tube portion (22) is connected to the second tube box (13), and an arc tube portion (23) is fixed and connected between the inlet tube portion (21) and the outlet tube portion (22), and the second tube box (13) is connected to a fluid interface (32) of the plate heat exchanger (3).

2. A combined marine heat exchanger according to claim 1, characterized in that: The first tube box (12) is fixedly mounted with a first tube sheet (14), the second tube box (13) is fixedly mounted with a second tube sheet (15), the inlet pipe portion (21) is fixedly connected to a connecting pipe (24), the outlet pipe portion (22) is fixedly connected to a drain pipe (25), the connecting pipe (24) is connected to the first tube box (12), and the drain pipe (25) is connected to the second tube box (13).

3. The combined marine heat exchanger according to claim 1, characterized in that: The plate heat exchanger (3) further comprises an end plate (31), the fluid interface (32) is located on the end plate (31), and the second pipe box (13) is in contact with the end plate (31).

4. The combined marine heat exchanger according to claim 1, characterized in that: The tubular heat exchanger (1) further comprises a first end cap (16) and a second end cap (17) on both sides, and both the first end cap (16) and the second end cap (17) are provided with an inlet pipe (18).

5. The combined marine heat exchanger according to claim 1, characterized in that: Support legs (4) are fixedly installed between the tube heat exchanger (1) and the plate heat exchanger (3), and baffles are fixedly installed between the plurality of tube bundles (2).

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