Heat exchanger tube sheet structure and heat exchanger

Abstract

The utility model provides a kind of heat exchanger tube plate structure and heat exchanger, it is related to heat exchanger technical field, the heat exchanger tube plate structure and heat exchanger, including heat exchanger tube plate, its inside is set up multiple installation holes for installing tube bundle;Strengthen frame is installed in the outside of the heat exchanger tube plate, the strengthening frame includes outer ring, multiple reinforcing bars evenly distributed in outer ring, first connecting piece connected with adjacent reinforcing bar, and second connecting piece is arranged in the inboard of each reinforcing bar, the tube bundle is divided into two parts;By setting installation hole in the inside of heat exchanger tube plate to install tube bundle, and setting first threaded sleeve and second threaded sleeve on the end of tube bundle to install it, strengthen frame is additionally set on the outside of heat exchanger tube plate, and strengthening frame is sleeved on tube bundle and is fixed by second threaded sleeve, can support and reinforce heat exchanger tube plate, to improve the ability of heater tube plate to bear higher pressure and temperature.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a heat exchanger tube sheet structure and a heat exchanger. Background Technology

[0002] In modern industrial production, heat exchangers, as important heat exchange devices, are widely used in chemical, petroleum, metallurgical, and power industries. Shell-and-tube heat exchangers, a common type, achieve heat exchange between two or more fluids through multiple tube bundles arranged inside. Traditional shell-and-tube heat exchangers typically rely on the flow and heat transfer characteristics of the fluids themselves for heat exchange. In this process, the heating medium (such as steam or hot water) flows through the tube bundle, transferring heat to the cold fluid outside the tubes (such as water or air).

[0003] Traditional heat exchanger tube sheets are prone to deformation under high pressure and temperature, leading to loosening of the connection between the tube sheet and the heat exchange tubes and affecting the heat exchanger's sealing performance. Once leakage occurs, it not only reduces heat exchange efficiency but can also cause safety accidents. For example, in some high-temperature and high-pressure chemical production processes, media leakage caused by tube sheet deformation can pose serious hazards to the production environment and operators. Utility Model Content

[0004] To address the problem in the prior art that heat exchanger tube sheets are prone to deformation under high pressure and temperature, this utility model proposes a heat exchanger tube sheet structure and a heat exchanger.

[0005] The technical solution of this utility model is as follows: a heat exchanger tube sheet structure includes a heat exchanger tube sheet with multiple mounting holes for installing tube bundles inside; a reinforcing frame is installed on the outside of the heat exchanger tube sheet, the reinforcing frame includes an outer ring, multiple reinforcing ribs evenly distributed in the outer ring, a first connecting member connecting adjacent reinforcing ribs, and a second connecting member disposed on the inner side of each reinforcing rib.

[0006] A further technical solution of this utility model is that the tube bundle is divided into two parts: one part of the tube bundle is inserted into the inside of the reinforcing frame, and its end is fixed by the second threaded sleeve; the other part of the tube bundle is not inserted into the inside of the reinforcing frame, and its end is fixed by the first threaded sleeve.

[0007] A further technical solution of this utility model is that the first connecting member includes two connecting strips and a connecting ring. Both connecting strips are fixedly connected to the connecting ring, and the other ends of the two connecting strips are respectively fixedly connected to two adjacent reinforcing ribs. The connecting ring abuts against the second threaded sleeve to fix the tube bundle and the reinforcing frame. The second connecting member has the same structure as the first connecting member.

[0008] A further technical solution of this utility model is that the outer ring is located at the edge of the heat exchanger tube sheet and is used to support and reinforce the edge of the tube sheet.

[0009] A further technical solution of this utility model is that a baffle is fixed on the outer surface of the tube bundle near the inner wall of the heat exchanger tube sheet, the baffle abuts against the heat exchanger tube sheet, and a sealing gasket is provided at the connection between the tube bundle and the mounting hole.

[0010] A further technical solution of this utility model is that the outer surfaces of both the first threaded sleeve and the second threaded sleeve are provided with uniformly distributed anti-slip blocks.

[0011] A further technical solution of this utility model is that the structure of the second connector is the same as that of the first connector, both of which are connected to the tube bundle through a connecting ring.

[0012] A further technical solution of this utility model is that the reinforcing ribs form a grid-like support structure through the first connector and the second connector, so as to suppress deformation and enhance the overall compressive strength.

[0013] A heat exchanger comprising the heat exchanger tube sheet structure described above.

[0014] The advantages of this utility model are as follows: by opening mounting holes inside the heat exchanger tube sheet to install the tube bundle, and setting a first threaded sleeve and a second threaded sleeve at the end of the tube bundle for installation, and setting a reinforcing frame on the outside of the heat exchanger tube sheet, and the reinforcing frame is sleeved on the tube bundle and fixed by the second threaded sleeve, the heat exchanger tube sheet can be supported and reinforced, thereby improving the heat exchanger tube sheet's ability to withstand higher pressure and temperature. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the threaded sleeve in a specific embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the heat exchanger tube sheet in a specific embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the reinforcing frame in a specific embodiment of this utility model.

[0020] In the figure: 1. Heat exchanger tube sheet; 11. Mounting hole; 2. Tube bundle; 3. Reinforcing frame; 31. Outer ring; 32. Reinforcing rib; 33. First connector; 331. Connecting strip; 332. Connecting ring; 34. Second connector; 4. First threaded sleeve; 41. Anti-slip block; 5. Second threaded sleeve. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4 As shown, a heat exchanger tube sheet structure includes a heat exchanger tube sheet 1. The heat exchanger tube sheet 1 has multiple mounting holes 11 for installing tube bundles 2 inside. A reinforcing frame 3 for enhancing its compressive strength is also installed on the outside of the heat exchanger tube sheet 1. A portion of the tube bundles 2 are inserted into the interior of the reinforcing frame 3. The ends of the tube bundles 2 not inserted into the interior of the reinforcing frame 3 are threaded with a first threaded sleeve 4, and the ends of the tube bundles 2 inserted into the interior of the reinforcing frame 3 are threaded with a second threaded sleeve 5.

[0023] A baffle is fixedly installed on the outer surface of the tube bundle 2 near the inner wall of the heat exchanger tube sheet 1. The baffle abuts against the heat exchanger tube sheet 1. A sealing gasket is provided at the connection between the tube bundle 2 and the mounting hole 11. The baffle and the sealing gasket are well known to those skilled in the art, so they are not described in detail in this embodiment.

[0024] The reinforcing frame 3 includes an outer ring 31, which is located at the edge of the heat exchanger tube sheet 1 to support and reinforce the edge of the heat exchanger tube sheet 1. Multiple uniformly distributed reinforcing ribs 32 are installed inside the outer ring 31. The multiple reinforcing ribs 32 are all L-shaped, and a first connector 33 is installed between the multiple reinforcing ribs 32. A second connector 34 is installed on the inner side of each reinforcing rib 32. The reinforcing ribs 32 form a grid-like support structure through the first connector 33 and the second connector 34 to suppress deformation and enhance the overall compressive strength.

[0025] The first connector 33 includes two connecting strips 331. One end of each connecting strip 331 is fixedly installed on the outer surface of two adjacent reinforcing ribs 32. The other end of each connecting strip 331 is fixedly installed with a connecting ring 332 for connecting the tube bundle 2. The second threaded sleeve 5 abuts against the connecting ring 332. The structure of the second connector 34 is the same as that of the first connector 33. The first connector 33 and the second connector 34 can not only be used to strengthen the heat exchanger tube sheet 1, but also to support and reinforce the reinforcing ribs 32 to prevent them from deforming.

[0026] The outer surface of the first threaded sleeve 4 is fixedly equipped with multiple evenly distributed anti-slip blocks 41, which makes it easy for users to disassemble and assemble it. The structure of the second threaded sleeve 5 is exactly the same as that of the first threaded sleeve 4.

[0027] According to a second aspect of this disclosure, a heat exchanger is provided, comprising the heat exchanger tube sheet structure as described above, thereby ensuring the heat exchanger's own sealing and the stability of heat exchange operation, and improving its service life.

[0028] Working principle: First, install one heat exchanger tube sheet 1 at one end of the heat exchanger. Then, install the heat exchanger tube bundle 2 and baffles, etc. Next, install the other heat exchanger tube sheet 1 at the other end of the heat exchanger. Sleeve the reinforcing frame 3 onto the tube bundle 2 and install and fix it through the second threaded sleeve 5. Install and fix the remaining tube bundle 2 through the first threaded sleeve 4. Finally, install the heat exchanger end caps, etc.

[0029] In this invention, the tube bundle 2 is installed by opening mounting holes 11 inside the heat exchanger tube sheet 1, and a first threaded sleeve 4 and a second threaded sleeve 5 are provided at the end of the tube bundle 2 for installation. A reinforcing frame 3 is provided on the outside of the heat exchanger tube sheet 1, and the reinforcing frame 3 is sleeved on the tube bundle 2 and fixed by the second threaded sleeve 5. This can support and reinforce the heat exchanger tube sheet 1, thereby improving the heat exchanger tube sheet's ability to withstand higher pressure and temperature.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat exchanger tube sheet structure, characterized by, It includes a heat exchanger tube sheet (1) with multiple mounting holes (11) inside for mounting tube bundles (2). The reinforcing frame (3) is installed outside the heat exchanger tube sheet (1). The reinforcing frame (3) includes an outer ring (31), a plurality of reinforcing ribs (32) evenly distributed in the outer ring (31), a first connector (33) connecting adjacent reinforcing ribs (32), and a second connector (34) disposed on the inner side of each reinforcing rib (32). The tube bundle (2) is divided into two parts: One part of the tube bundle (2) is inserted into the inside of the reinforcing frame (3), and its end is fixed by the second threaded sleeve (5); Another part of the tube bundle (2) is not inserted into the reinforcing frame (3), and its end is fixed by the first threaded sleeve (4).

2. The heat exchanger tube sheet structure according to claim 1, wherein The first connector (33) includes two connecting strips (331) and a connecting ring (332). Both connecting strips (331) are fixedly connected to the connecting ring (332). The other ends of the two connecting strips (331) are fixedly connected to two adjacent reinforcing ribs (32). The connecting ring (332) abuts against the second threaded sleeve (5) to fix the tube bundle (2) and the reinforcing frame (3). The second connector (34) has the same structure as the first connector (33).

3. The heat exchanger tube sheet structure of claim 1, wherein The outer ring (31) is located at the edge of the heat exchanger tube sheet (1) and is used to support and reinforce the edge of the tube sheet.

4. The heat exchanger tube sheet structure according to claim 3, wherein A baffle is fixed on the outer surface of the tube bundle (2) near the inner wall of the heat exchanger tube sheet (1). The baffle abuts against the heat exchanger tube sheet (1), and a sealing gasket is provided at the connection between the tube bundle (2) and the mounting hole (11).

5. The heat exchanger tube sheet structure of claim 1 wherein, The outer surfaces of the first threaded sleeve (4) and the second threaded sleeve (5) are provided with uniformly distributed anti-slip blocks (41).

6. The heat exchanger tube sheet structure of claim 1 wherein, The structure of the second connector (34) is the same as that of the first connector (33), and both are connected to the tube bundle (2) through a connecting ring (332).

7. The heat exchanger tube sheet structure of claim 1 wherein, The reinforcing rib (32) forms a grid-like support structure through the first connector (33) and the second connector (34) to suppress deformation and enhance the overall compressive strength.

8. A heat exchanger, characterized by Includes a heat exchanger tube sheet structure as described in any one of claims 1-7.

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