Anti-scale plate-fin heat exchanger

Abstract

The utility model discloses an anti-scale plate-fin heat exchanger, which relates to the technical field of plate heat exchangers, and comprises a mounting shell, one end of the mounting shell is fixedly connected with a filter mechanism, a heat exchange mechanism is arranged in the mounting shell, the filter mechanism comprises a filter box, and the filter box is fixedly connected with the mounting shell. Two cavities for cold and hot fluid to pass through are formed in the filter box, a sealing cover is arranged on one side of the filter box, a liquid inlet pipe is arranged on one side of the upper end of the sealing cover, and the liquid inlet pipe comprises a hot fluid pipeline and a cold fluid pipeline. Through the arrangement of the filtering mechanism, cold fluid and hot fluid can be filtered and impurities in the fluid can be removed before entering the heat exchanger, so that the impurities in the fluid can be prevented from being deposited into dirt on the surfaces of the heat exchange sheets, and the number of the filtering plates in the filtering box can be flexibly adjusted according to the impurity quantity of the fluid; the filtering effect of the filtering mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, and particularly relates to an anti-scaling plate-fin heat exchanger. Background Art

[0002] The plate-fin heat exchanger is a highly efficient and compact heat exchange device, which is widely used in various fields. The plate heat exchanger is composed of a series of metal sheets with a certain corrugated shape stacked together, and a narrow flow channel is formed between adjacent two sheets. Two fluids with different temperatures flow in adjacent flow channels respectively, and heat transfer is carried out through the metal sheets. There are mainly three ways of heat transfer: heat conduction, convective heat transfer and radiative heat transfer. In the plate heat exchanger, heat conduction is the main heat transfer method, that is, heat is transferred from the high-temperature fluid to the low-temperature fluid through the metal sheet. At the same time, due to the flow of the fluid in the flow channel, convective heat transfer will also occur, further enhancing the heat transfer effect.

[0003] However, during the use of the existing plate-fin heat exchanger, since the fluid directly contacts the inside of the plate-fin heat exchanger, during long-term use, impurities in the fluid will gradually deposit on the surface of the heat exchange fins, resulting in the accumulation of dirt on the surface of the heat exchange fins. Thus, when the fluid enters the inside of the heat exchanger, it cannot directly contact the heat exchange fins, thereby affecting the heat exchange effect. Therefore, an anti-scaling plate-fin heat exchanger is proposed. Summary of the Utility Model

[0004] The utility model provides an anti-scaling plate-fin heat exchanger to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An anti-scaling plate-fin heat exchanger includes an installation shell, and one end of the installation shell is fixedly connected with a filtering mechanism, and a heat exchange mechanism is arranged inside the installation shell.

[0007] The further improvement of the technical solution of the utility model lies in that: the filtering mechanism includes a filtering box, and two cavities for cold and hot fluids to pass through are arranged inside the filtering box.

[0008] The further improvement of the technical solution of the utility model lies in that: a sealing cover is arranged on one side of the filtering box, a liquid inlet pipe is arranged on one side of the upper end of the sealing cover, and the liquid inlet pipe includes a hot fluid pipeline and a cold fluid pipeline.

[0009] The further improvement of the technical solution of the utility model lies in that: a filter plate is arranged inside the filtering box, a threaded column is fixedly connected to the inner wall of the sealing cover, a pressing rod is threadedly connected to the surface of the threaded column, and one end of the pressing rod is lapped on the surface of the filter plate.

[0010] A further improvement of the technical solution of the present utility model lies in that: the heat exchange mechanism includes a hot fluid inlet pipe and a cold fluid inlet pipe, and one end of the cold fluid inlet pipe is fixedly connected to a heat exchange plate with through holes formed on its surface.

[0011] A further improvement of the technical solution of the present utility model lies in that: one end of the hot fluid inlet pipe is fixedly connected to one side of the heat exchange plate, one end of the cold fluid inlet pipe is fixedly connected to one side of the other heat exchange plate, fins are fixedly connected to the surface of the heat exchange plate, and a connecting pipe is fixedly connected to one side of the heat exchange plate.

[0012] A further improvement of the technical solution of the present utility model lies in that: a hot fluid outlet is fixedly connected to the inside of one end of the installation shell, and one end of the hot fluid outlet is fixedly connected to the surface of the heat exchange plate.

[0013] A further improvement of the technical solution of the present utility model lies in that: a cold fluid outlet is fixedly connected to the inside of one end of the installation shell, and one end of the cold fluid outlet is fixedly connected to the surface of the other heat exchange plate.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0015] The present utility model provides an anti-scaling plate-fin heat exchanger. Through the setting of the filtering mechanism, the cold fluid and the hot fluid can be filtered before entering the heat exchanger to remove impurities in the fluid, thereby avoiding the deposition of impurities in the fluid on the surface of the heat exchange fins as dirt, and the number of filter plates in the filter box can be flexibly adjusted according to the amount of impurities in the fluid, improving the filtering effect of the filtering mechanism. Brief Description of the Drawings

[0016] Figure 1 is the front view structural schematic diagram of the present utility model;

[0017] Figure 2 is the exploded structural schematic diagram of the present utility model;

[0018] Figure 3 is the partial heat exchange mechanism structural schematic diagram of the present utility model;

[0019] Figure 4 is the exploded structural schematic diagram of the filtering mechanism of the present utility model;

[0020] Figure 5 is the exploded side view structural schematic diagram of the filtering mechanism of the present utility model.

[0021] In the figure: 1. Installation shell; 2. Filter mechanism; 21. Filter box; 22. Sealing cover; 23. Liquid inlet pipe; 231. Hot fluid pipe; 232. Cold fluid pipe; 24. Filter plate; 25. Threaded column; 26. Pressing rod; 3. Heat exchange mechanism; 31. Hot fluid inlet pipe; 32. Cold fluid inlet pipe; 33. Heat exchange plate; 34. Fins; 35. Connecting pipe; 36. Hot fluid outlet; 37. Cold fluid outlet. Detailed implementation mode

[0022] The following further describes the present utility model in detail with reference to the embodiments:

[0023] Embodiment 1

[0024] As Figures 1-5 shown, the present utility model provides an anti-scaling plate-fin heat exchanger, which includes an installation shell 1. One end of the installation shell 1 is fixedly connected with a filter mechanism 2. A heat exchange mechanism 3 is arranged inside the installation shell 1. The filter mechanism 2 includes a filter box 21. Two cavities for hot and cold fluids to pass through are arranged inside the filter box 21. A sealing cover 22 is arranged on one side of the filter box 21. One side of the upper end of the sealing cover 22 is provided with a liquid inlet pipe 23. The liquid inlet pipe 23 includes a hot fluid pipe 231 and a cold fluid pipe 232. A filter plate 24 is arranged inside the filter box 21. The inner wall of the sealing cover 22 is fixedly connected with a threaded column 25. A pressing rod 26 is threadedly connected to the surface of the threaded column 25. One end of the pressing rod 26 abuts against the surface of the filter plate 24.

[0025] In this embodiment, when heat exchange is carried out, the hot fluid and the cold fluid are respectively injected into the heat exchanger along the hot fluid pipe 231 and the cold fluid pipe 232. When passing through the filter box 21, under the action of the filter plate 24, impurities in the fluid are filtered to prevent impurities from entering the interior of the filter. At the same time, according to the amount of impurities in the fluid, an appropriate number of filter plates 24 can be installed in the filter box 21. Then rotate the pressing rod 26 to make the pressing rod 26 move along the threaded column 25 to adjust the position of the pressing rod 26. When the sealing cover 22 is installed on one side of the filter box 21, the pressing rod 26 can fix different numbers of filter plates 24.

[0026] Embodiment 2

[0027] As Figures 1-5 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the heat exchange mechanism 3 includes a hot fluid inlet pipe 31 and a cold fluid inlet pipe 32. One end of the cold fluid inlet pipe 32 is fixedly connected with a heat exchange plate 33 with through holes on its surface. One end of the hot fluid inlet pipe 31 is fixedly connected with one side of the heat exchange plate 33. One end of the cold fluid inlet pipe 32 is fixedly connected with one side of another heat exchange plate 33. Fins 34 are fixedly connected to the surface of the heat exchange plate 33. A connecting pipe 35 is fixedly connected to one side of the heat exchange plate 33.

[0028] In this embodiment, after being filtered, the hot fluid enters through the hot fluid inlet pipe 31 and enters the second cavity formed by being separated by the adjacent heat exchange plates 33 from right to left (in accordance with Figure 3 ), enters from the upper left corner of this cavity, then enters the connecting pipe 35 from the lower right corner of this cavity, enters the fourth cavity through the connecting pipe 35, and then enters the sixth cavity from the upper left corner of the fourth cavity through the connecting pipe 35, and so on.

[0029] Embodiment 3

[0030] As Figures 1-5 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, a hot fluid outlet 36 is fixedly connected to the inside of one end of the installation shell 1, one end of the hot fluid outlet 36 is fixedly connected to the surface of the heat exchange plate 33, a cold fluid outlet 37 is fixedly connected to the inside of one end of the installation shell 1, and one end of the cold fluid outlet 37 is fixedly connected to the surface of another heat exchange plate 33.

[0031] In this embodiment, the filtered cold fluid enters the first cavity along the cold fluid inlet pipe 32, enters from the upper right corner of this cavity, passes through the connecting pipe 35, enters the third cavity from the lower left corner, and then enters the fifth cavity from the upper right corner of the third cavity, and so on, so that the adjacent two cavities respectively flow hot fluid and cold fluid, and heat exchange is completed through the heat exchange plate 33. At the same time, the diagonal flow path can also extend the retention time of the fluid in the heat exchanger, making the heat exchange effect better. The heated hot fluid is discharged from the hot fluid outlet 36, and the heated cold fluid is discharged from the cold fluid outlet 37.

[0032] Next, the working principle of the anti-scaling plate-fin heat exchanger will be specifically described.

[0033] As Figures 1-5 shown, when heat exchange is carried out, the hot fluid and the cold fluid are respectively injected into the heat exchanger along the hot fluid pipeline 231 and the cold fluid pipeline 232. When passing through the filter box 21, under the action of the filter plate 24, the impurities in the fluid are filtered to prevent the impurities from entering the interior of the filter. At the same time, according to the amount of impurities in the fluid, an appropriate number of filter plates 24 can be installed in the filter box 21. Then rotate the pressure rod 26 so that the pressure rod 26 moves along the threaded column 25 to adjust the position of the pressure rod 26. When the sealing cover 22 is installed on one side of the filter box 21, the pressure rod 26 can fix different numbers of filter plates 24. After being filtered, the hot fluid enters through the hot fluid inlet pipe 31 and enters from right to left (in accordance with Figure 3) In the second cavity formed by being separated by the adjacent heat exchange plates 33, it enters from the upper left corner of this cavity, then enters the connecting pipe 35 from the lower right corner of this cavity, enters the fourth cavity through the connecting pipe 35, and then enters the sixth cavity from the upper left corner of the fourth cavity through the connecting pipe 35, and so on. The filtered cold fluid enters the first cavity along the cold fluid inlet pipe 32, enters from the upper right corner of this cavity, passes through the connecting pipe 35, enters the third cavity from the lower left corner, and then enters the fifth cavity from the upper right corner of the third cavity, and so on. The adjacent two cavities respectively flow hot fluid and cold fluid, and heat exchange is completed through the heat exchange plate 33. At the same time, the diagonal flow path can also extend the retention time of the fluid in the heat exchanger, making the heat exchange effect better. The heated hot fluid is discharged from the hot fluid outlet 36, and the heated cold fluid is discharged from the cold fluid outlet 37.

[0034] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit and idea of the present invention are within the protection scope of the present invention.

Claims

1. A scale-proof plate-fin heat exchanger, comprising a mounting shell (1), characterized in that: One end of the installation shell (1) is fixedly connected with a filtering mechanism (2), and a heat exchange mechanism (3) is arranged inside the installation shell (1). The filtering mechanism (2) includes a filtering box (21). Two cavities for hot and cold fluids to pass through are arranged inside the filtering box (21). A sealing cover (22) is arranged on one side of the filtering box (21). A liquid inlet pipe (23) is arranged on one side of the upper end of the sealing cover (22). The liquid inlet pipe (23) includes a hot fluid pipeline (231) and a cold fluid pipeline (232). A filter plate (24) is arranged inside the filtering box (21). A threaded column (25) is fixedly connected to the inner wall of the sealing cover (22). A pressure rod (26) is threadedly connected to the surface of the threaded column (25). One end of the pressure rod (26) is lapped on the surface of the filter plate (24).

2. The anti-scaling plate-fin heat exchanger according to claim 1, wherein: The heat exchange mechanism (3) includes a hot fluid inlet pipe (31) and a cold fluid inlet pipe (32). One end of the cold fluid inlet pipe (32) is fixedly connected with a heat exchange plate (33) with through holes formed on its surface.

3. The anti-scaling plate-fin heat exchanger according to claim 2, wherein: One end of the hot fluid inlet pipe (31) is fixedly connected with one side of the heat exchange plate (33). One end of the cold fluid inlet pipe (32) is fixedly connected with one side of the other heat exchange plate (33). Fins (34) are fixedly connected to the surface of the heat exchange plate (33). A connecting pipe (35) is fixedly connected to one side of the heat exchange plate (33).

4. The anti-scaling plate-fin heat exchanger according to claim 3, characterized in that: A hot fluid outlet (36) is fixedly connected to the inside of one end of the installation shell (1). One end of the hot fluid outlet (36) is fixedly connected with the surface of the heat exchange plate (33).

5. The anti-scaling plate-fin heat exchanger according to claim 4, wherein: A cold fluid outlet (37) is fixedly connected to the inside of one end of the installation shell (1). One end of the cold fluid outlet (37) is fixedly connected with the surface of the other heat exchange plate (33).

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