Combined heat exchanger

Abstract

The utility model provides a combined heat exchanger which comprises an upper splitter plate and a lower splitter plate, a main heat conducting plate and an auxiliary heat conducting plate are symmetrically connected between the upper splitter plate and the lower splitter plate, heat conducting assemblies are symmetrically connected between the main heat conducting plate and the auxiliary heat conducting plate, and the two ends of each heat conducting assembly are fixedly connected with a transition plate and a connecting plate respectively. The heat conduction assembly is composed of a heat conduction pipe and a positioning plate, the two sides of the lower splitter plate are symmetrically connected with mounting plates, the lower surface of the bottom plate is fixedly connected with the upper surfaces of the mounting plates, the upper surface of the bottom plate is symmetrically connected with reinforcing rods, the upper ends of the reinforcing rods are fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the side face of the upper splitter plate through bolts. According to the heat exchanger, the upper splitter plate, the lower splitter plate, the main heat conduction plate, the auxiliary heat conduction plate, the heat conduction assembly and the transition plate are matched, so that two groups of fluid in the heat exchanger can be in contact with each other in different directions, and the heat exchange efficiency is improved in an auxiliary mode.

Description

Technical Field

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

[0002] A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet the specified process requirements, and is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways; according to their operating processes, they can be divided into three categories: shell-and-tube, mixed, and regenerative (or recuperative); according to the compactness of their surfaces, they can be divided into compact and non-compact categories; however, the common heat exchangers on the market cannot be combined, resulting in inconvenient installation, and the flow directions of the two groups of fluids during the heat exchange process are relatively single, thus making the heat exchange efficiency to be enhanced. At the same time, the common heat exchangers are not provided with a protection structure, and the surroundings of the heat exchanger are easily damaged due to external collisions, causing accidental leakage of the fluid and affecting the normal use of the heat exchanger. Summary of the Utility Model

[0003] In order to overcome the defects existing in the prior art, a combined heat exchanger is provided herein to solve the problems set forth in the above background art.

[0004] To achieve the above object, a combined heat exchanger is provided, including: an upper flow dividing plate and a lower flow dividing plate, a main heat conducting plate and a secondary heat conducting plate are symmetrically connected between the upper flow dividing plate and the lower flow dividing plate, a heat conducting component is symmetrically connected between the main heat conducting plate and the secondary heat conducting plate, and both ends of the heat conducting component are respectively fixedly connected to a transition plate and a connecting plate. At the same time, the heat conducting component is composed of a heat conducting tube and a positioning plate. Installation plates are symmetrically connected to both sides of the lower flow dividing plate, the lower surface of a bottom plate is fixedly connected to the upper surface of the installation plate, reinforcing rods are symmetrically connected to the upper surface of the bottom plate, the upper ends of the reinforcing rods are fixedly connected to a fixing plate, and the fixing plate is fixedly connected to the side surface of the upper flow dividing plate by bolts.

[0005] Preferably, both the upper flow dividing plate and the lower flow dividing plate are in a rectangular structure, the cross-sections of the upper flow dividing plate and the lower flow dividing plate are both in a square structure, and conveying interfaces are fixedly connected to both end faces of the upper flow dividing plate and the lower flow dividing plate.

[0006] Preferably, both the main heat conducting plate and the secondary heat conducting plate are in an arched structure, the main heat conducting plate and the secondary heat conducting plate between the upper flow dividing plate and the lower flow dividing plate are alternately distributed, and the horizontal cross-sections of the upper flow dividing plate and the lower flow dividing plate are both in a square structure.

[0007] Preferably, both ends of the main heat conducting plate and the secondary heat conducting plate communicate with the inner cavities of the upper flow dividing plate and the lower flow dividing plate, the corner directions of the main heat conducting plate and the secondary heat conducting plate are opposite, and the main heat conducting plate and the secondary heat conducting plate together form a square structure.

[0008] Preferably, the heat conduction component is composed of two groups of heat conduction tubes and one group of positioning plates. The two groups of heat conduction tubes are in a cylindrical structure, while the positioning plate is in a strip-shaped structure. At the same time, both sides of the positioning plate are fixedly connected to the heat conduction tubes through grooves. The diversion groove opened in the middle of the positioning plate is in a strip-shaped structure, and the end face of the positioning plate is in a funnel-shaped structure.

[0009] Preferably, the transition plates fixedly connected to both ends of the heat conduction component are in a U-shaped structure. The fluid component formed by combining the heat conduction component and the transition plates is in an S-shaped structure, and the connecting plates fixedly connected to both ends of the fluid component are in a square tube-shaped structure.

[0010] Preferably, the two groups of mounting plates fixedly connected to both sides of the lower flow dividing plate are both in a strip-shaped structure. Fitting grooves are opened on the upper surface of the mounting plates, and fitting parts are correspondingly opened on the lower surface of the bottom plate at positions opposite to the fitting grooves. The cross-section of the bottom plate is in a convex-shaped structure, while the cross-section of the fixing plate is in an L-shaped structure. The bottom plate and the fixing plate are fixedly connected with multiple groups of reinforcing rods at equal intervals along the length direction. The reinforcing rods are in a cylindrical structure, and the bottom plate, the reinforcing rods and the fixing plate together form a structure like the Chinese character'mu'.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the cooperation of the upper flow dividing plate, the lower flow dividing plate, the main heat conduction plate, the secondary heat conduction plate, the heat conduction component and the transition plate, the heat exchanger can be conveniently assembled, improving the installation efficiency. And the flow directions of the two groups of fluids in the heat exchanger will change multiple times, thereby improving the heat exchange efficiency of the heat exchanger. At the same time, through the cooperation of the mounting plate, the bottom plate, the reinforcing rod and the fixing plate, it can not only enhance the overall structural strength of the heat exchanger, but also provide a good protection effect for the main heat conduction plate, the secondary heat conduction plate and the heat conduction component, reducing the probability of accidental damage to the heat exchanger. Description of the Drawings

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 It is a side view schematic diagram of an embodiment of the present utility model.

[0014] Figure 3 It is a partial top view schematic diagram of an embodiment of the present utility model.

[0015] Figure 4 It is a partial top view schematic diagram of the upper flow dividing plate and the lower flow dividing plate of an embodiment of the present utility model.

[0016] In the figure: 1. Upper flow dividing plate; 2. Main heat conduction plate; 3. Secondary heat conduction plate; 4. Heat conduction component; 5. Transition plate; 6. Connecting plate; 7. Lower flow dividing plate; 8. Fixing plate; 9. Reinforcing rod; 10. Positioning plate; 11. Heat conduction tube; 12. Bottom plate; 13. Mounting plate. Detailed Embodiment

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Refer to Figures 1 to 4 As shown, the present utility model provides a combined heat exchanger, including: an upper flow dividing plate 1 and a lower flow dividing plate 7. The main heat conducting plate 2 and the auxiliary heat conducting plate 3 are symmetrically connected between the upper flow dividing plate 1 and the lower flow dividing plate 7. The heat conducting components 4 are symmetrically connected between the main heat conducting plate 2 and the auxiliary heat conducting plate 3. The two ends of the heat conducting components 4 are respectively fixedly connected to the transition plate 5 and the connecting plate 6. At the same time, the heat conducting components 4 are composed of heat conducting tubes 11 and positioning plates 10. The mounting plates 13 are symmetrically connected to both sides of the lower flow dividing plate 7. The lower surface of the bottom plate 12 is fixedly connected to the upper surface of the mounting plate 13. The reinforcing rods 9 are symmetrically connected to the upper surface of the bottom plate 12. The upper ends of the reinforcing rods 9 are fixedly connected to the fixing plate 8. At the same time, the fixing plate 8 is fixedly connected to the side surface of the upper flow dividing plate 1 by bolts.

[0019] In this embodiment, the low-temperature fluid is injected into the upper flow dividing plate 1 through the conveying interface. The low-temperature fluid flows into the lower flow dividing plate 7 through the main heat conducting plate 2 and the auxiliary heat conducting plate 3, and the low-temperature fluid flows out from the conveying interface of the lower flow dividing plate 7. The high-temperature fluid is injected through the connecting plate 6 at the upper end of the fluid component and flows out from the connecting plate 6 at the lower end of the fluid component. Among them, the heat exchange positions of the low-temperature fluid and the high-temperature fluid will change multiple times during the flow process, and the high-temperature fluid in the heat conducting component 4 will be remixed and then divided in the transition plate 5. Therefore, the heat exchange effect of the heat exchanger can be effectively improved. The cooperation of the bottom plate 12, the reinforcing rods 9 and the fixing plate 8 on both sides of the upper flow dividing plate 1 and the lower flow dividing plate 7 can enhance the structural strength between the two, and assist in enhancing the protection effect of the heat exchanger.

[0020] As a preferred implementation manner, both the upper flow dividing plate 1 and the lower flow dividing plate 7 are in a rectangular structure, the cross-sections of the upper flow dividing plate 1 and the lower flow dividing plate 7 are both in a square structure, and the conveying interfaces are fixedly connected to both end faces of the upper flow dividing plate 1 and the lower flow dividing plate 7.

[0021] In this embodiment, as shown in Figure 1 and Figure 2 , the setting of the conveying interface enables the upper flow dividing plate 1 and the lower flow dividing plate 7 to inject fluid according to actual needs, and the other to discharge fluid, so that the fluid can flow smoothly in the heat exchanger, and it is also convenient for multiple groups of heat exchangers to perform corresponding convenient combinations.

[0022] As a preferred embodiment, the main heat plate 2 and the auxiliary heat conducting plate 3 are both in an arc-shaped structure, and the main heat plate 2 and the auxiliary heat conducting plate 3 between the upper flow dividing plate 1 and the lower flow dividing plate 7 are alternately distributed. At the same time, the horizontal cross-sections of the upper flow dividing plate 1 and the lower flow dividing plate 7 are both in a square-shaped structure.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3 , the hollow-structured main heat plate 2 and auxiliary heat conducting plate 3 enable corresponding fluid flow between the upper flow dividing plate 1 and the lower flow dividing plate 7, and the surfaces of the main heat plate 2 and the auxiliary heat conducting plate 3 are both attached to the surface of the heat conducting component 4, thereby enhancing the heat exchange effect among the heat conducting component 4, the main heat plate 2, and the auxiliary heat conducting plate 3.

[0024] As a preferred embodiment, both ends of the main heat plate 2 and the auxiliary heat conducting plate 3 are connected to the inner cavities of the upper flow dividing plate 1 and the lower flow dividing plate 7, and the corner directions of the main heat plate 2 and the auxiliary heat conducting plate 3 are opposite, and the main heat plate 2 and the auxiliary heat conducting plate 3 together form a square-shaped structure.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 , the opposite corner directions of the main heat plate 2 and the auxiliary heat conducting plate 3 enable the two sides of the heat conducting component 4 to be respectively attached to the surfaces of the main heat plate 2 and the auxiliary heat conducting plate 3, thus improving the efficiency of heat exchange between the fluid inside the heat conducting component 4 and the outside and the uniformity during heat exchange of the fluid, and ensuring the overall heat exchange effect of the heat exchanger on the fluid.

[0026] As a preferred embodiment, the heat conducting component 4 is composed of two groups of heat conducting tubes 11 and one group of positioning plates 10. The two groups of heat conducting tubes 11 are in a cylindrical structure, the positioning plates 10 are in a strip-shaped structure. At the same time, the two sides of the positioning plates 10 are fixedly connected to the heat conducting tubes 11 through grooves, the diversion grooves opened in the middle of the positioning plates 10 are in a strip-shaped structure, and the end faces of the positioning plates 10 are in a funnel-shaped structure.

[0027] In this embodiment, as Figure 2 and Figure 3 , the diversion grooves opened in the positioning plates 10 can effectively increase the flow rate of the fluid inside the heat conducting component 4, and can also cooperate with the heat conducting tubes 11 to increase the heat exchange area of the fluid, thereby enhancing the heat exchange effect of the fluid. The arrangement of the grooves on both sides of the positioning plates 10 can enhance the connection stability between the positioning plates 10 and the heat conducting tubes 11.

[0028] As a preferred embodiment, the transition plates 5 fixedly connected to both ends of the heat conducting component 4 are in a U-shaped structure, and the fluid component formed by combining the heat conducting component 4 and the transition plates 5 is in an S-shaped structure, and the connecting plates 6 fixedly connected to both ends of the fluid component are in a square tube-shaped structure.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 , the hollow structure of the transition plate 5 enables the three fluid streams in the heat conduction component 4 to re - merge into one fluid stream, realizing uniform mixing between the fluids, thereby assisting in improving the heat exchange effect of the heat exchanger and ensuring the normal flow of the fluid in the heat conduction component 4.

[0030] As a preferred embodiment, the two sets of mounting plates 13 fixedly connected to both sides of the lower flow - dividing plate 7 are both in a strip - shaped structure. The upper surface of the mounting plate 13 is provided with a fitting groove, and the lower surface of the bottom plate 12 is correspondingly provided with a fitting portion at a position corresponding to the fitting groove. The cross - section of the bottom plate 12 is in a convex - shaped structure, and the cross - section of the fixing plate 8 is in an L - shaped structure. The bottom plate 12 and the fixing plate 8 are fixedly connected with multiple groups of reinforcing rods 9 at equal intervals along the length direction. The reinforcing rods 9 are in a cylindrical structure, and the bottom plate 12, the reinforcing rods 9 and the fixing plate 8 are combined to form a structure in the shape of a Chinese character'mu'.

[0031] In this embodiment, as Figure 2 and Figure 4 , the bottom plate 12 can be quickly positioned on the surface of the mounting plate 13 through the fitting portion, thereby facilitating the improvement of the fixing connection efficiency between the fixing plate 8 and the upper flow - dividing plate 1. At the same time when the fixing plate 8 is fixedly connected, the fixing plate 8 can enhance the connection stability between the bottom plate 12 and the mounting plate 13 through the reinforcing rods 9. The setting of the reinforcing rods 9 can not only assist in enhancing the overall structural strength of the heat exchanger but also provide corresponding protection effects.

[0032] The combined heat exchanger of the present utility model, through the cooperation of the upper flow - dividing plate 1, the lower flow - dividing plate 7, the main heat - conducting plate 2, the auxiliary heat - conducting plate 3, the heat conduction component 4 and the transition plate 5, enables the two fluid streams in the heat exchanger to contact each other in different directions, thereby assisting in improving the heat exchange efficiency and also assisting in improving the uniformity of heat exchange between the two fluid streams, and further enhancing the heat exchange effect of the combined heat exchanger.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A combined heat exchanger, comprising: An upper manifold (1) and a lower manifold (7), characterized in that: a main heat conducting plate (2) and an auxiliary heat conducting plate (3) are symmetrically connected between the upper manifold (1) and the lower manifold (7); a heat conducting component (4) is symmetrically connected between the main heat conducting plate (2) and the auxiliary heat conducting plate (3); and two ends of the heat conducting component (4) are respectively fixedly connected to a transition plate (5) and a connecting plate (6); and the heat conducting component (4) is composed of a heat conducting pipe (11) and a positioning plate (10); two sides of the lower manifold (7) are symmetrically connected to a mounting plate (13); and a lower surface of a bottom plate (12) is fixedly connected to an upper surface of the mounting plate (13); and a reinforcing rod (9) is symmetrically connected to an upper surface of the bottom plate (12); and an upper surface of the bottom plate (12) is fixedly connected to a fixing plate (8); and the fixing plate (8) is fixedly connected to a side surface of the upper manifold (1) by bolts.

2. The combined heat exchanger according to claim 1, wherein, The upper flow divider plate (1) and the lower flow divider plate (7) are both rectangular structures, and the cross-sections of the upper flow divider plate (1) and the lower flow divider plate (7) are both square structures, and the end surfaces of both ends of the upper flow divider plate (1) and the lower flow divider plate (7) are fixedly connected to the delivery interface.

3. The combined heat exchanger according to claim 1, characterized in that, The main heat conducting plate (2) and the auxiliary heat conducting plate (3) are both in an arched structure, and the main heat conducting plate (2) and the auxiliary heat conducting plate (3) are alternately distributed between the upper splitter plate (1) and the lower splitter plate (7), and the horizontal cross-sections of the upper splitter plate (1) and the lower splitter plate (7) are both in a square-shaped structure.

4. A combined heat exchanger according to claim 1, characterized in that, Both ends of the main heat conducting plate (2) and the auxiliary heat conducting plate (3) are connected to the inner cavities of the upper diverter plate (1) and the lower diverter plate (7), and the main heat conducting plate (2) and the auxiliary heat conducting plate (3) have opposite turning directions, and the main heat conducting plate (2) and the auxiliary heat conducting plate (3) are combined together to form a U-shaped structure.

5. A combined heat exchanger according to claim 1, characterized in that, The heat conduction assembly (4) is composed of two groups of heat conduction pipes (11) and a group of positioning plates (10), wherein the two groups of heat conduction pipes (11) are cylindrical in structure, and the positioning plates (10) are elongated in structure. The heat conduction pipes (11) are fixedly connected to the two sides of the positioning plates (10) via grooves, and the guide groove opened in the middle of the positioning plates (10) is elongated in structure, and the end surface of the positioning plates (10) is funnel-shaped.

6. The combined heat exchanger according to claim 1, wherein The transition plates (5) fixedly connected at both ends of the heat conducting component (4) are in a U-shaped structure, while the fluid component formed by the combination of the heat conducting component (4) and the transition plates (5) is in an S-shaped structure, and the connecting plates (6) fixedly connected at both ends of the fluid component are in a square cylinder structure.

7. A combined heat exchanger according to claim 1, wherein, The two groups of mounting plates (13) fixedly connected on both sides of the lower diverter plate (7) are both in the form of long strips, the mounting plates (13) have an interlocking groove on the upper surface, and the bottom plate (12) has an interlocking portion on the lower surface corresponding to the position of the interlocking groove, the bottom plate (12) has a cross-section in the form of a convex letter "U", and the fixing plate (8) has a cross-section in the form of an L-shaped structure, and the bottom plate (12) and the fixing plate (8) are fixedly connected to a plurality of groups of reinforcing rods (9) in parallel and at equal intervals along the length direction, the reinforcing rods (9) having a cylindrical structure, and the bottom plate (12), the reinforcing rods (9) and the fixing plate (8) are combined together to form a letter "U"-shaped structure.

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