Novel efficient tubular heat exchanger

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly discloses a novel efficient tubular heat exchanger which comprises a heat exchanger body. Tube boxes are mounted at two ends of the heat exchanger body. The heat exchanger main body comprises a tube plate, a shell, a heat exchange tube and a mounting plate; the multiple mounting plates are arranged in parallel at intervals, the heat exchange pipes penetrate through the mounting plates and are mounted on the mounting plates to form pipe bundles, and the pipe bundles are arranged on the inner side of the shell. The tube plates are mounted at two ends of the heat exchange tubes and connected with the tube box; the inner end of the tube box is fixedly connected with a connecting ring, the connecting ring is arranged outwards in the radial direction, and the outer side face of the shell is flush with the outer side face of the connecting ring. The connecting rings and the tube plates are connected through bolts after being attached, tight connection between the heat exchanger body and the tube boxes is ensured, and the structural stability of the whole heat exchanger is enhanced. The shell pass diameter can be increased, and the requirement for the shell pass circulation area is met. The heat exchange tubes can be fully distributed, so that the heat exchange area can be increased, the heat exchange efficiency is improved, and the manufacturing cost is not increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and specifically relates to a novel high-efficiency shell-and-tube heat exchanger. Background Art

[0002] Shell and tube heat exchanger is a kind of equipment for heat exchange between tube side medium and shell side medium. Among the many types of shell and tube heat exchangers, fixed tube plate heat exchanger is the preferred type of heat exchanger under the condition that chemical process conditions allow. Because fixed tube plate heat exchanger has a simple, compact structure and low cost; compared with other types of heat exchangers, under the same shell diameter, the number of heat exchange tubes arranged is the largest; the inside of the heat exchange tube is easy to clean; it can easily achieve heat exchange between cold and hot media, etc.

[0003] However, the shell side pipe of the existing fixed tube sheet heat exchanger needs to leave a shell side flow area, so the heat exchange tubes cannot be fully arranged at the shell side inlet and outlet to avoid poor medium flow. Therefore, the heat exchange area and heat exchange efficiency need to be further improved. Utility Model Content

[0004] In view of the problem that the heat exchange tubes cannot be fully distributed due to the position of the shell inlet and outlet in the prior art, and the heat exchange area and heat exchange efficiency need to be further improved, a new type of high-efficiency shell-and-tube heat exchanger is proposed. The utility model provides the following technical solutions:

[0005] A novel high-efficiency shell-and-tube heat exchanger comprises a heat exchanger body, on which a shell-side inlet and a shell-side outlet are arranged; tube boxes are installed at both ends of the heat exchanger body, on which a tube-side inlet and a tube-side outlet are arranged, and the heat exchanger body comprises a tube sheet, a shell, a heat exchange tube, and a mounting plate; a plurality of mounting plates are arranged in parallel and at intervals, and the heat exchange tubes pass through and are installed on the mounting plates to form a tube bundle, and the tube bundle is arranged on the inner side of the shell; the tube sheet is installed at both ends of the heat exchange tube and connected to the tube box; a connecting ring is fixedly connected to the inner end of the tube box, and the connecting ring is arranged radially outward, the outer side surface of the shell is arranged flush with the outer side surface of the connecting ring, and the connecting ring and the tube sheet are connected to each other through bolts after being fitted.

[0006] Preferably, the mounting plates are arranged in parallel at equal intervals.

[0007] Preferably, a base is fixedly connected to the bottom side of the shell.

[0008] Preferably, the heat exchange tubes are arranged in a circular shape on the mounting plate.

[0009] Preferably, the connecting ring and the pipe box are integrally formed.

[0010] Preferably, a mounting hole is provided on the connecting ring, and a mounting auxiliary hole is provided on the mounting plate. The mounting hole is a through hole, and the bolt passes through the mounting hole and is threadedly connected to the mounting auxiliary hole.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The heat exchange tubes pass through and are installed on the mounting plate to form a tube bundle. The tube bundle is set on the inside of the shell, and the outer side of the shell is set flush with the outer side of the connecting ring. The connecting ring and the tube sheet are fitted and connected to each other by bolts. This connection method ensures a tight connection between the heat exchanger body and the tube box, and enhances the structural stability of the entire heat exchanger. The original bolts are fastened with nuts on the tube sheet side and changed to embedded bolts, which can increase the shell diameter to meet the needs of the shell flow area; the heat exchange tubes can also be fully distributed. In this way, the heat exchange area will be increased due to the increase in the number of heat exchange tubes, thereby improving the heat exchange efficiency. The pipe layout restrictions of the heat exchanger are solved, the heat exchange area is increased, and the manufacturing cost is not increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] In the attached drawings, 1. heat exchanger body; 11. tube sheet; 12. shell; 13. heat exchange tube; 14. mounting plate; 2. tube box; 21. connecting ring; 3. tube side outlet; 4. shell side inlet; 5. tube side inlet; 6. shell side outlet; 7. base; 8. bolts. DETAILED DESCRIPTION

[0015] The directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention of the utility model.

[0016] like Figure 1As shown, a new type of high-efficiency shell-and-tube heat exchanger includes a heat exchanger body 1, on which a shell-side inlet 4 and a shell-side outlet 6 are provided; a tube box 2 is installed at both ends of the heat exchanger body 1, and a tube-side inlet 5 and a tube-side outlet 3 are provided on the tube box 2. The heat exchanger body 1 includes a tube sheet 11, a shell 12, a heat exchange tube 13, and a mounting plate 14; a plurality of mounting plates 14 are arranged in parallel and spaced apart, and the heat exchange tube 13 passes through and is installed on the mounting plate 14 to form a tube bundle, which is arranged on the inner side of the shell 12. The heat exchange area is increased, thereby improving the heat exchange efficiency. The tube sheet 11 is installed at both ends of the heat exchange tube 13 and connected to the tube box 2; a connecting ring 21 is fixedly connected to the inner end of the tube box 2, and the connecting ring 21 is arranged radially outward, and the outer side surface of the shell 12 is arranged flush with the outer side surface of the connecting ring 21. The connecting ring 21 and the tube sheet 11 are connected to each other through bolts 8 after being fitted. This connection method ensures the tight connection between the heat exchanger body 1 and the tube box 2, and enhances the structural stability of the entire heat exchanger. The original bolts 8 on the tube sheet 11 side are fastened with nuts and then changed to embedded bolts 8, which can increase the shell diameter to meet the needs of the shell flow area. The heat exchange tubes 13 can also be fully arranged. In this way, the heat exchange area will be increased due to the increase in the heat exchange tubes 13, thereby improving the heat exchange efficiency. The pipe layout restrictions of the heat exchanger are solved, the heat exchange area is increased, and the manufacturing cost is not increased.

[0017] Furthermore, the mounting plates 14 are arranged in parallel at equal intervals, which further ensures that the heat exchange tubes 13 are evenly distributed, thereby further improving the heat exchange efficiency.

[0018] Furthermore, two bases 7 are fixedly connected to the bottom side of the shell 12 at intervals, which enhances the stability of the heat exchanger and facilitates installation.

[0019] Furthermore, the heat exchange tubes 13 are arranged in a circular shape on the mounting plate 14, which is beneficial to the uniform distribution of the fluid and improves the heat exchange efficiency.

[0020] Furthermore, the connection ring 21 and the pipe box 2 are integrally formed, which enhances the connection strength between the connection ring 21 and the pipe box 2 and further improves the structural stability of the heat exchanger.

[0021] Specifically, a mounting hole is provided on the connecting ring 21, and a mounting auxiliary hole is provided on the mounting plate 14. The mounting hole is a through hole, and the bolt 8 passes through the mounting hole and is threadedly connected to the mounting auxiliary hole, and a nut is installed outside the bolt 8 for fixing. This connection method is simple and reliable, ensuring a stable connection between the heat exchanger body 1 and the pipe box 2.

[0022] The utility model increases the flow area of ​​the shell side to achieve the purpose of fully arranging the heat exchange tubes 13. Thus, the heat exchange area is increased and the heat exchange performance of the heat exchanger of the same specification is improved.

Claims

1. A novel high-efficiency shell-and-tube heat exchanger, comprising a heat exchanger body (1), the heat exchanger body (1) being provided with a shell side inlet (4) and a shell side outlet (6); a tube box (2) being installed at both ends of the heat exchanger body (1), the tube box (2) being provided with a tube side inlet (5) and a tube side outlet (3), characterized in that: The heat exchanger body (1) comprises a tube sheet (11), a shell (12), a heat exchange tube (13), and a mounting plate (14); a plurality of mounting plates (14) are arranged in parallel and at intervals; the heat exchange tube (13) passes through and is mounted on the mounting plates (14) to form a tube bundle, and the tube bundle is arranged on the inner side of the shell (12); the tube sheet (11) is mounted on both ends of the heat exchange tube (13) and is connected to a tube box (2); a connecting ring (21) is fixedly connected to the inner end of the tube box (2), and the connecting ring (21) is arranged radially outward, the outer side surface of the shell (12) is arranged flush with the outer side surface of the connecting ring (21), and the connecting ring (21) and the tube sheet (11) are fitted and connected to each other by bolts (8).

2. The novel high-efficiency shell-and-tube heat exchanger according to claim 1 is characterized in that: The mounting plates (14) are arranged in parallel at equal intervals.

3. The novel high-efficiency shell-and-tube heat exchanger according to claim 1 is characterized in that: The bottom side of the housing (12) is fixedly connected to a base (7).

4. The novel high-efficiency shell-and-tube heat exchanger according to claim 1 is characterized in that: The heat exchange tubes (13) are arranged in a circular shape on the mounting plate (14).

5. The novel high-efficiency shell-and-tube heat exchanger according to claim 1 is characterized in that: The connecting ring (21) and the pipe box (2) are integrally formed.

6. The novel high-efficiency shell-and-tube heat exchanger according to claim 1 is characterized in that: The connecting ring (21) is provided with a mounting hole, and the mounting plate (14) is provided with a mounting auxiliary hole, wherein the mounting hole is a through hole, and the bolt (8) passes through the mounting hole and is threadedly connected to the mounting auxiliary hole.

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