Heat exchanger convenient to assemble

Abstract

The utility model provides a heat exchanger convenient to assemble, which solves the technical problem that heat exchange tubes of an existing heat exchanger are difficult to align and install, and the heat exchange tubes are provided with a first heat exchange tube and a second heat exchange tube. One ends of the first heat exchange tubes are communicated with the first through holes of the movable tube plate in a limiting manner, and the other ends of the first heat exchange tubes are communicated with the second heat exchange tubes penetrating through the fixed tube plate in a limiting manner; the positioning device comprises at least two positioning cylinders and two guide rods; one end of the positioning cylinder is fixed on the fixed tube plate, one end of the guide rod is fixed on the movable tube plate, and the guide rod is in clearance fit with the positioning cylinder; the positioning device comprises a positioning disc and a supporting rod, and the positioning disc and the supporting rod are arranged between the fixed tube plate and the movable tube plate; one end of the supporting rod is fixedly connected with the movable tube plate, and the other end of the supporting rod is fixedly connected with the positioning disc; the positioning disc is provided with a positioning cylinder through hole and a heat exchange tube limiting hole, the positioning cylinder penetrates through the positioning cylinder through hole, and the first heat exchange tube penetrates through the heat exchange tube limiting hole in a matched mode. The utility model can be widely applied to the technical field of heat exchange.

Description

Technical Field

[0001] The present application relates to the field of heat exchange technology, and in particular to a heat exchanger that is easy to assemble. Background Art

[0002] In industrial production, in order to meet the needs of industrial processes, various methods of heat conversion are often required, such as heating, cooling, evaporation and condensation. Heat exchangers are equipment used to achieve the above heat exchange and transfer.

[0003] The utility model with publication number CN205119912U discloses a heat exchanger which is easy to install, such as Figure 1 As shown, by fixing two guide rods 5 on the movable tube sheet 2 and fixing two corresponding positioning cylinders 4 on the fixed tube sheet 1, a heat exchanger positioning device is formed to realize the rapid installation of the heat exchanger. However, when the heat exchange tubes 3 are densely arranged, one end of the heat exchange tube 3 is fixed on the movable tube sheet 2 in advance, which may cause individual heat exchange tubes 3 to be skewed. When the other ends of all heat exchange tubes 3 are inserted and connected with the corresponding heat exchange tube connection holes 6 on the fixed tube sheet 2, even if the guide rods 5 are provided, as long as one heat exchange tube 3 is not aligned with the heat exchange tube connection hole 6, the other heat exchange tubes 6 cannot be aligned and installed, which interferes with each other, increases the difficulty of actual installation, and finally affects the installation process of the entire heat exchanger. Summary of the invention

[0004] The utility model aims to solve the deficiencies of the above-mentioned technology and provide a heat exchanger which is easy to assemble, so that the other ends of all heat exchange tubes can be smoothly inserted and connected with the corresponding heat exchange tube connection holes on the fixed tube sheet, thereby reducing the actual installation difficulty.

[0005] To this end, the utility model provides a heat exchanger that is easy to assemble, including a fixed tube sheet, a movable tube sheet, a heat exchange tube and a positioning device; the heat exchange tube is provided with a first heat exchange tube and a second heat exchange tube; one end of a plurality of first heat exchange tubes is limitedly connected to the first through hole of the movable tube sheet, and the other end of the first heat exchange tube is connected to the second heat exchange tube that passes through the fixed tube sheet; the positioning device includes at least two positioning cylinders and two guide rods; one end of the positioning cylinder is fixed on the fixed tube sheet, and one end of the guide rod is fixed on the movable tube sheet, and the guide rod and the positioning cylinder are clearance-matched; the positioning device also includes a positioning disk and a support rod, and the positioning disk and the support rod are arranged between the fixed tube sheet and the movable tube sheet; one end of the support rod is fixedly connected to the movable tube sheet, and the other end of the support rod is fixedly connected to the positioning disk; the positioning disk is provided with a positioning cylinder through hole and a heat exchange tube limiting hole, the positioning cylinder through the positioning cylinder through hole, and the first heat exchange tube is adapted to pass through the heat exchange tube limiting hole.

[0006] Preferably, the positioning device also includes a positioning guide groove and a positioning guide rail. The positioning guide groove is provided at the edge of the positioning plate, and the positioning guide rail is installed on the inner wall of the heat exchanger between the fixed tube sheet and the movable tube sheet. The positioning guide groove and the positioning guide rail are adapted for sliding connection.

[0007] Preferably, a conical plug is provided at the other end of the first heat exchange tube, and the conical plug can be detachably inserted into the tube mouth of the second heat exchange tube; the conical plug is a hollow structure, which is provided with a connected annular platform and a conical convex portion, and the annular platform is provided with an annular groove.

[0008] Preferably, the inner wall at the tube mouth of the second heat exchange tube is provided with a conical recess, and the conical recess is detachably and adaptably connected to the conical protrusion; the tube mouth of the second heat exchange tube is detachably and adaptably connected to the annular groove.

[0009] Preferably, the movable tube plate is provided with a leakage hole near its edge.

[0010] The beneficial effects of the utility model are as follows: the utility model provides a heat exchanger that is easy to assemble, which is provided with a positioning plate and a support rod, the support rod fixedly connected to the movable tube plate plays a role in positioning the positioning plate, the positioning plate is provided with a positioning tube through hole and a heat exchange tube limiting hole, the positioning tube through the positioning tube through hole, the first heat exchange tube is adapted to pass through the heat exchange tube limiting hole, and the heat exchange tube limiting hole plays a role in limiting and positioning the first heat exchange tube. When the heat exchange tubes are densely arranged, the first heat exchange tube is inserted and limited in the heat exchange tube limiting hole of the positioning plate in advance, thereby avoiding the occurrence of individual first heat exchange tubes being skewed; under the guiding action of the guide rod and the positioning tube, the other ends of all the first heat exchange tubes are smoothly inserted and connected to the tube mouths of the second heat exchange tubes, thereby reducing the actual installation difficulty of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a structural schematic diagram of a heat exchanger shown in the prior art;

[0013] Figure 2 It is a structural schematic diagram of the utility model;

[0014] Figure 3 for Figure 2 A schematic diagram of the structure of the partially exploded view;

[0015] Figure 4 It is a structural schematic diagram of a left view of the support plate of the utility model;

[0016] Figure 5 for Figure 2 A schematic structural diagram of the enlarged view of the A part;

[0017] Figure 6 It is a structural schematic diagram of a left view of a tapered plug of a first heat exchange tube of the utility model;

[0018] Figure 7 It is a structural schematic diagram of a left view of another support plate of the utility model.

[0019] Markings in the figure: 1. Fixed tube sheet, 2. Movable tube sheet, 3. Heat exchange tube, 4. Positioning cylinder, 5. Guide rod, 6. Heat exchange tube connection hole, 7. Support rod, 8. Positioning plate, 9. Positioning guide groove, 10. Heat exchange tube limit hole, 11. Positioning guide rail, 12. Conical convex part, 13. Annular platform, 14. Annular groove, 15. Conical concave part, 16. Leakage hole, 17. Positioning cylinder through hole, 31. First heat exchange tube, 32. Second heat exchange tube. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. The methods used in the present utility model are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercial products unless otherwise specified.

[0021] Depend on Figure 2-Figure 4 As shown, the utility model provides a heat exchanger that is easy to assemble, including a fixed tube sheet 1, a movable tube sheet 2, a heat exchange tube 3 and a positioning device; the heat exchange tube 3 is provided with a first heat exchange tube 31 and a second heat exchange tube 32; one end of a plurality of first heat exchange tubes 31 is limitedly connected with a first through hole of the movable tube sheet 2, and the other end of the first heat exchange tube 31 is connected with a second heat exchange tube 32 that is limitedly passed through the fixed tube sheet 1; the positioning device includes at least two positioning cylinders 4 and two guide rods 5; one end of the positioning cylinder 4 is fixed on the fixed tube sheet 1, One end of the guide rod 5 is fixed on the movable tube sheet 2, and the guide rod 5 is clearance-matched with the positioning tube 4; the positioning device also includes a positioning plate 8 and a support rod 7, and the positioning plate 8 and the support rod 7 are arranged between the fixed tube sheet 1 and the movable tube sheet 2; one end of the support rod 7 is connected to the movable tube sheet 2, and the other end of the support rod 7 is connected to the positioning plate 8; the positioning plate 8 is provided with a positioning tube through hole 17 and a heat exchange tube limiting hole 10, the positioning tube 4 passes through the positioning tube through hole 17, and the first heat exchange tube 31 is adapted to pass through the heat exchange tube limiting hole 10.

[0022] The support rod 7 fixedly connected to the movable tube plate 2 plays a role in positioning the positioning plate 8. The positioning plate 8 is provided with a positioning tube through hole 17 and a heat exchange tube limiting hole 10. The positioning tube through hole 17 through which the positioning tube 4 passes, the first heat exchange tube 31 is adapted to pass through the heat exchange tube limiting hole 10, and the heat exchange tube limiting hole 10 plays a role in limiting and positioning the first heat exchange tube 31. When the heat exchange tubes 3 are densely arranged, the first heat exchange tube 31 is inserted into and limited in the heat exchange tube limiting hole 10 of the positioning plate 8, thereby avoiding the occurrence of individual first heat exchange tubes 31 being skewed; under the guiding action of the guide rod 5 and the positioning tube 4, the other ends of all the first heat exchange tubes 31 are smoothly inserted and connected to the tube mouths of the second heat exchange tubes 32, thereby reducing the actual installation difficulty of the heat exchanger.

[0023] As a preferred embodiment, Figure 3 , Figure 4 As shown, the positioning device also includes a positioning guide groove 9 and a positioning guide rail 11. The positioning guide groove 9 is provided at the edge of the positioning plate 8, and the positioning guide rail 11 is installed on the inner wall of the heat exchanger between the fixed tube sheet 1 and the movable tube sheet 2; the positioning guide groove 9 and the positioning guide rail 11 are adapted and slidably connected. In the process of installing and docking the other end of the first heat exchange tube 31 with the tube mouth of the second heat exchange tube 32, the positioning guide groove 9 and the positioning guide rail 11 adapted and slidably connected play a further stabilizing and guiding role for the positioning plate 8, on the one hand, the guide rod 5 is smoothly inserted into the positioning tube 4; on the other hand, the guiding synergistic effect of the guide rod 5 and the positioning tube 4 enables the other ends of all the first heat exchange tubes 31 to be smoothly inserted and connected into the tube mouth of the second heat exchange tube 32, and the whole process is stable and reliable.

[0024] As a preferred embodiment, Figure 5 , Figure 6 As shown, the other end of the first heat exchange tube 31 is provided with a conical plug, which can be detachably inserted into the tube mouth of the second heat exchange tube 32; the conical plug is a hollow structure, which is provided with an annular platform 13 and a conical convex portion 12 connected to each other, and the annular platform 13 is provided with an annular groove 14. As a further preferred embodiment, Figure 5 As shown, the inner wall at the tube mouth of the second heat exchange tube 32 is provided with a conical recess 15 , and the conical recess 15 is detachably connected to the conical protrusion 12 ; the tube mouth of the second heat exchange tube 32 is detachably connected to the annular groove 14 .

[0025] The diameter of the first heat exchange tube 31 at the conical plug is larger than the diameter of the second heat exchange tube 32 connected thereto, and the conical concave portion 15 and the conical convex portion 12, and the tube mouth of the second heat exchange tube 32 and the annular groove 14 are detachably connected. This structural design has three main functions: on the one hand, the conical plug of the first heat exchange tube 31 can be smoothly inserted into the tube mouth of the second heat exchange tube 32; on the other hand, after the conical plug of the first heat exchange tube 31 is inserted into the tube mouth of the second heat exchange tube 32, the connection between the two is more secure; third, by Figure 5 As shown, there are multiple twists and turns at the connection between the conical concave portion 15 and the conical convex portion 12, and the pipe mouth of the second heat exchange tube 32 and the annular groove 14, which increases the resistance of the heat exchange fluid to break through, thereby ensuring the stability of the connection between the two.

[0026] As a preferred embodiment, Figure 1 As shown, the movable tube sheet 2 is provided with a leakage hole 16 near its edge. When the first heat exchange tube 31 or the conical plug of the first heat exchange tube 31 is damaged and leaks, the leaked liquid flows out from the leakage hole 16. On the one hand, the leakage will reduce the corrosion of the internal components of the heat exchanger; on the other hand, it will remind the production personnel to repair in time to avoid safety accidents.

[0027] The utility model provides a heat exchanger that is easy to assemble, which is provided with a positioning plate 8 and a support rod 7. The support rod 7 positions the positioning plate 8, and the positioning plate 8 limits the layout of the densely arranged first heat exchange tubes 31. In particular, according to the actual situation of the heat exchanger, products with specific requirements for the layout of the heat exchange tubes are more indispensable, such as Figure 7 The positioning plate 8 is shown.

[0028] The utility model is of great significance to the modularization and micro-integration development of the layout of heat exchange tubes, and has broad practical value and promotion value.

[0029] In the description of the present utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. It should be noted that in the above-mentioned embodiments, the "first" and "second" do not represent an absolute distinction in structure and / or function, nor do they represent a sequential order of execution, but are merely for the convenience of description.

[0030] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A heat exchanger that is easy to assemble, comprising a fixed tube sheet (1), a movable tube sheet (2), a heat exchange tube (3) and a positioning device; the heat exchange tube (3) is provided with a first heat exchange tube (31) and a second heat exchange tube (32); one end of a plurality of the first heat exchange tubes (31) is limitedly connected to a first through hole of the movable tube sheet (2), and the other end of the first heat exchange tube (31) is connected to the second heat exchange tube (32) that passes through the fixed tube sheet (1); the positioning device comprises at least two positioning cylinders (4) and two guide rods (5); one end of the positioning cylinder (4) is fixed to the fixed tube sheet (1), and one end of the guide rod (5) is fixed to the movable tube sheet (2), and the guide rod (5) is clearance-matched with the positioning cylinder (4), characterized in that: The positioning device also includes a positioning plate (8) and a support rod (7), wherein the positioning plate (8) and the support rod (7) are arranged between the fixed tube plate (1) and the movable tube plate (2); one end of the support rod (7) is fixedly connected to the movable tube plate (2), and the other end of the support rod (7) is fixedly connected to the positioning plate (8); the positioning plate (8) is provided with a positioning tube through hole (17) and a heat exchange tube limiting hole (10), the positioning tube (4) passes through the positioning tube through hole (17), and the first heat exchange tube (31) is adapted to pass through the heat exchange tube limiting hole (10).

2. A heat exchanger that is easy to assemble according to claim 1, characterized in that: The positioning device also includes a positioning guide groove (9) and a positioning guide rail (11); the positioning guide groove (9) is provided on the edge of the positioning plate (8); the positioning guide rail (11) is installed on the inner wall of the heat exchanger between the fixed tube sheet (1) and the movable tube sheet (2); the positioning guide groove (9) and the positioning guide rail (11) are adaptively slidably connected.

3. The heat exchanger that is easy to assemble according to claim 1, characterized in that: The other end of the first heat exchange tube (31) is provided with a conical plug, and the conical plug can be detachably inserted into the tube mouth of the second heat exchange tube (32); the conical plug is a hollow structure, which is provided with an annular platform (13) and a conical protrusion (12) connected to each other, and the annular platform (13) is provided with an annular groove (14).

4. A heat exchanger that is easy to assemble according to claim 3, characterized in that: The inner wall at the tube mouth of the second heat exchange tube (32) is provided with a conical recess (15), and the conical recess (15) is detachably connected to the conical protrusion (12); the tube mouth of the second heat exchange tube (32) is detachably connected to the annular groove (14).

5. The heat exchanger that is easy to assemble according to claim 1, characterized in that: The movable tube plate (2) is provided with a liquid leakage hole (16) near its edge.

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