Tubular heat exchanger convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of tubular heat exchangers, and particularly relates to a tubular heat exchanger convenient to disassemble and assemble, which comprises a barrel body, and a flow guide cover and a plurality of heat exchange tubes which are respectively positioned on the left side and the right side of the barrel body, and a first positioning plate and a second positioning plate are respectively mounted on the left side and the right side in the barrel body; a plurality of first positioning holes and a plurality of second positioning holes are formed in the outer wall of the first positioning plate and the outer wall of the second positioning plate in a penetrating mode correspondingly, one ends of the heat exchange pipes extend into the first positioning holes correspondingly, the other ends of the heat exchange pipes penetrate through the second positioning holes correspondingly, and limiting rings are fixedly connected to the outer walls of the heat exchange pipes correspondingly; second sealing rings which extrude the right side of the second positioning plate are installed on the left sides of the multiple limiting rings correspondingly, the left ends of the multiple heat exchange pipes are fixedly connected with external threaded pipes correspondingly, the outer walls of the multiple external threaded pipes are in threaded connection with tightening blocks correspondingly, and first sealing rings which extrude the left side of the first positioning plate are installed at the right ends of the multiple tightening blocks correspondingly. According to the utility model, the damaged heat exchange tube can be conveniently and independently disassembled, assembled and replaced, and the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of tubular heat exchangers, specifically a tubular heat exchanger that is easy to disassemble and assemble. Background Technology

[0002] A heat exchanger, also known as a heat exchanger, is a device that transfers some of the heat from a hot fluid to a cold fluid. Heat exchangers play an important role in many fields. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, and reboilers, among others, with tubular heat exchangers playing a dominant role.

[0003] Existing tubular heat exchangers generally consist of a shell, two flow guides, two perforated plates, and multiple heat exchange tubes. The heat exchange tubes pass through multiple positioning holes in the two perforated plates on both sides, and are fixed together with the two perforated plates by welding.

[0004] However, since multiple heat exchange tubes and two perforated plates are fixed by welding, when one or two heat exchange tubes are damaged, multiple heat exchange tubes and two perforated plates need to be replaced as a whole, which increases costs. Summary of the Invention

[0005] The purpose of this invention is to provide a tubular heat exchanger that is easy to disassemble and assemble, making it convenient to disassemble and replace damaged heat exchange tubes individually, thereby reducing costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tubular heat exchanger that is easy to assemble and disassemble, comprising a cylinder, flow guides located on the left and right sides of the cylinder, and a plurality of heat exchange tubes. A first positioning plate and a second positioning plate are respectively installed on the left and right sides inside the cylinder. The outer walls of the first positioning plate and the second positioning plate are respectively provided with a plurality of first positioning holes and a plurality of second positioning holes. One end of the plurality of heat exchange tubes extends into the interior of the plurality of first positioning holes, and the other end of the plurality of heat exchange tubes passes through the interior of the plurality of second positioning holes. Limiting rings are fixedly connected to the outer walls of the plurality of heat exchange tubes. A second sealing ring that presses against the right side of the plurality of limiting rings is installed on the left side of the plurality of limiting rings. An external threaded pipe is fixedly connected to the left end of the plurality of heat exchange tubes. An adjusting block is threadedly connected to the outer wall of the plurality of external threaded pipes. A first sealing ring that presses against the left side of the plurality of adjusting blocks is installed on the right end of the plurality of adjusting blocks.

[0007] To facilitate the installation and fixation of the two flow guides, as a preferred embodiment of this utility model of a tubular heat exchanger that is easy to assemble and disassemble, both flow guides are connected to the left and right sides of the cylinder via flanges.

[0008] In order to connect the inlet and outlet water pipes respectively, as a preferred embodiment of the present invention for easy disassembly and assembly of tubular heat exchangers, an inlet connector is connected through the lower side of the outer wall of the cylinder, and an outlet connector is connected through the upper side of the outer wall of the cylinder.

[0009] In order to connect the liquid outlet and liquid inlet pipes respectively, as a preferred embodiment of the present invention for easy disassembly and assembly of tubular heat exchangers, a liquid outlet connector is connected through the outer wall of the left guide shroud, and a liquid inlet connector is connected through the outer wall of the right guide shroud.

[0010] To improve the positioning effect of multiple heat exchange tubes, as a preferred embodiment of this utility model of a tubular heat exchanger that is easy to assemble and disassemble, the multiple heat exchange tubes are respectively matched with the interiors of multiple first positioning holes and multiple second positioning holes.

[0011] In order to improve the heat exchange effect on the liquid inside the multiple heat exchange tubes, as a preferred embodiment of the present invention for easy disassembly and assembly of tubular heat exchangers, the multiple heat exchange tubes are all made of thermally conductive material.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] When it is necessary to disassemble and replace a damaged heat exchanger tube, first remove the two guide shields, then unscrew the adjusting block corresponding to the damaged heat exchanger tube, pull out the damaged heat exchanger tube, and insert the new heat exchanger tube into the corresponding second positioning hole and first positioning hole. Then screw the adjusting block into the outer wall of the external threaded tube, and make the first sealing ring and the second sealing ring press against the first positioning plate and the second positioning plate respectively. This completes the disassembly and replacement of the damaged heat exchanger tube. The disassembly and replacement is convenient and reduces costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0018] Figure 4This is a three-dimensional structural diagram of the second positioning plate of this utility model.

[0019] In the diagram: 1. Cylinder; 2. Flow guide; 3. First positioning plate; 4. Second positioning plate; 5. Liquid inlet connector; 6. First positioning hole; 7. Heat exchange tube; 8. Limiting ring; 9. Second sealing ring; 10. External threaded tube; 11. Adjusting block; 12. First sealing ring; 13. Water inlet connector; 14. Water outlet connector; 15. Liquid outlet connector; 16. Second positioning hole. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please see Figures 1 to 4 A tubular heat exchanger that is easy to assemble and disassemble includes a shell 1, flow guides 2 located on the left and right sides of the shell 1, and multiple heat exchange tubes 7. A first positioning plate 3 and a second positioning plate 4 are respectively installed on the left and right sides inside the shell 1. Multiple first positioning holes 6 and multiple second positioning holes 16 are respectively opened through the outer walls of the first positioning plates 3 and the second positioning plates 4. One end of each heat exchange tube 7 extends into the interior of the multiple first positioning holes 6, and the other end of each heat exchange tube 7 passes through the interior of the multiple second positioning holes 16. Limiting rings 8 are fixedly connected to the outer walls of each heat exchange tube 7. A second sealing ring 9 that is pressed against the right side of the second positioning plate 4 is installed on the left side of each limiting ring 8. An external threaded pipe 10 is fixedly connected to the left end of each heat exchange tube 7. An adjusting block 11 is threadedly connected to the outer wall of each external threaded pipe 10. A first sealing ring 12 that is pressed against the left side of the first positioning plate 3 is installed on the right end of each adjusting block 11.

[0024] In this embodiment: when it is necessary to disassemble and replace the damaged heat exchange tube 7, firstly, remove the two guide shields 2, then unscrew the adjusting block 11 corresponding to the damaged heat exchange tube 7, so that the damaged heat exchange tube 7 can be pulled out from the right side, and insert one end of the new heat exchange tube 7 into the corresponding second positioning hole 16, and let its other end enter the corresponding first positioning hole 6. At this time, the external threaded tube 10 passes through the first positioning hole 6, and then screw the adjusting block 11 into the outer wall of the external threaded tube 10, and squeeze the first positioning plate 3 through the first sealing ring 12. At the same time, pull the heat exchange tube 7 to the left, so that the second sealing ring 9 can squeeze the outer wall of the second positioning plate 4, thereby sealing the first positioning hole 6 and the second positioning hole 16. Then, fix the two guide shields 2 on the left and right sides of the cylinder 1 respectively, and the disassembly and replacement of the damaged heat exchange tube 7 can be completed. The disassembly and replacement is convenient and reduces costs. Then, the multiple second sealing rings 9 and multiple first sealing rings 12 can prevent the liquid inside the two guide shields 2 from entering between the second positioning plate 4 and the first positioning plate 3.

[0025] As a technical optimization of this utility model, the two guide shields 2 are connected to the left and right sides of the cylinder 1 through flanges.

[0026] In this embodiment, the two guide shields 2 are connected to the left and right sides of the cylinder 1 through flanges, which facilitates the installation and fixing of the two guide shields 2.

[0027] As a technical optimization of this utility model, a water inlet connector 13 is connected through the lower side of the outer wall of the cylinder 1, and a water outlet connector 14 is connected through the upper side of the outer wall of the cylinder 1.

[0028] In this embodiment: by setting the inlet connector 13 and the outlet connector 14, the inlet pipe and the outlet pipe can be connected respectively.

[0029] As a technical optimization of this utility model, a liquid outlet connector 15 is connected through the outer wall of the left guide shroud 2, and a liquid inlet connector 5 is connected through the outer wall of the right guide shroud 2.

[0030] In this embodiment: by setting the liquid outlet connector 15 and the liquid inlet connector 5, the liquid outlet pipe and the liquid inlet pipe can be connected respectively.

[0031] As a technical optimization of this utility model, multiple heat exchange tubes 7 are respectively matched with the interiors of multiple first positioning holes 6 and multiple second positioning holes 16.

[0032] In this embodiment, the positioning effect of the multiple heat exchange tubes 7 is improved by matching the interiors of the multiple first positioning holes 6 and the multiple second positioning holes 16 respectively.

[0033] As a technical optimization of this utility model, all heat exchange tubes 7 are made of thermally conductive material.

[0034] In this embodiment, by setting all of the multiple heat exchange tubes 7 to a thermally conductive material, the heat exchange effect on the liquid inside the multiple heat exchange tubes 7 is improved.

[0035] Working principle: When it is necessary to disassemble and replace the damaged heat exchange tube 7, first remove the two guide shields 2, then unscrew the adjusting block 11 corresponding to the damaged heat exchange tube 7, so that the damaged heat exchange tube 7 can be pulled out from the right side, and insert one end of the new heat exchange tube 7 into the corresponding second positioning hole 16, and let its other end enter the corresponding first positioning hole 6. At this time, the external threaded tube 10 passes through the first positioning hole 6. Then screw the adjusting block 11 into the outer wall of the external threaded tube 10, and fix the first positioning plate through the first sealing ring 12. 3. Squeeze the heat exchange tube 7 to the left, so that the second sealing ring 9 can be squeezed against the outer wall of the second positioning plate 4, thereby sealing the first positioning hole 6 and the second positioning hole 16. Then, fix the two guide shrouds 2 on the left and right sides of the cylinder 1 respectively, so that the damaged heat exchange tube 7 can be disassembled and replaced. The disassembly and replacement is convenient and the cost is reduced. Then, the liquid inside the two guide shrouds 2 can be prevented from entering between the second positioning plate 4 and the first positioning plate 3 by multiple second sealing rings 9 and multiple first sealing rings 12.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tubular heat exchanger that is easy to assemble and disassemble, comprising a shell (1), flow guides (2) located on the left and right sides of the shell (1) respectively, and a plurality of heat exchange tubes (7), characterized in that: The cylinder (1) is equipped with a first positioning plate (3) and a second positioning plate (4) on its left and right sides respectively. The outer walls of the first positioning plate (3) and the second positioning plate (4) are respectively provided with a plurality of first positioning holes (6) and a plurality of second positioning holes (16). One end of the plurality of heat exchange tubes (7) extends into the interior of the plurality of first positioning holes (6) and the other end of the plurality of heat exchange tubes (7) passes through the interior of the plurality of second positioning holes (16). The outer walls of the plurality of heat exchange tubes (7) are fixedly connected with limit rings (8). The left side of the plurality of limit rings (8) is equipped with a second sealing ring (9) that is pressed against the right side of the second positioning plate (4). The left end of the plurality of heat exchange tubes (7) is fixedly connected with an external threaded pipe (10). The outer wall of the plurality of external threaded pipes (10) is threadedly connected with a tightening block (11). The right end of the plurality of tightening blocks (11) is equipped with a first sealing ring (12) that is pressed against the left side of the first positioning plate (3).

2. The tubular heat exchanger that is easy to assemble and disassemble according to claim 1, characterized in that: Both of the aforementioned flow guides (2) are connected to the left and right sides of the cylinder (1) via flanges.

3. The tubular heat exchanger that is easy to assemble and disassemble according to claim 1, characterized in that: A water inlet connector (13) is connected through the lower side of the outer wall of the cylinder (1), and a water outlet connector (14) is connected through the upper side of the outer wall of the cylinder (1).

4. A tubular heat exchanger that is easy to assemble and disassemble according to claim 1, characterized in that: A liquid outlet connector (15) is connected through the outer wall of the left guide shroud (2), and a liquid inlet connector (5) is connected through the outer wall of the right guide shroud (2).

5. A tubular heat exchanger that is easy to assemble and disassemble according to claim 1, characterized in that: The heat exchange tubes (7) are respectively matched with the interiors of the first positioning holes (6) and the second positioning holes (16).

6. A tubular heat exchanger that is easy to assemble and disassemble according to claim 1, characterized in that: All of the heat exchange tubes (7) are made of thermally conductive material.

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