Heat exchanger

Abstract

The utility model discloses a heat exchanger which comprises a box body, one side of the box body is open and is provided with an end cover used for blocking the box body, an inner circulation channel and an outer circulation channel are arranged in the box body, an inner circulation fan is arranged in the inner circulation channel, an outer circulation fan is arranged in the outer circulation channel, and the inner circulation fan and the outer circulation fan are arranged in the box body. An inner circulation air inlet and an inner circulation air outlet which are communicated with the inner circulation are formed in one side of the end cover, an outer circulation air inlet and an outer circulation air outlet which are communicated with the outer circulation channel are formed in the box body, and heat exchange cores which are symmetrically arranged are arranged in the box body and located between the inner circulation channel and the outer circulation channel. Through the arrangement of the structure, double air outlet is achieved, and heat exchange efficiency is improved.

Description

Technical Field

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

[0002] A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction. In most existing heat exchangers, the heat exchange between the external circulating air and the internal circulating air is carried out through the same heat exchange core. The heat exchange burden of a single heat exchange core is relatively large. When used for a long time, its heat exchange efficiency will gradually decrease, affecting its efficiency.

[0003] Therefore, a new solution is needed to solve this problem Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a heat exchanger, which realizes double air outlet through structural setting, thereby improving heat exchange efficiency.

[0005] The technical solution of the utility model is: it includes a box body, one side of the box body is open and is provided with an end cover for sealing the box body, an internal circulation channel and an external circulation channel are provided in the box body, an internal circulation fan is provided in the internal circulation channel, and an external circulation fan is provided in the external circulation channel, an internal circulation air inlet and an internal circulation air outlet connected with the internal circulation are provided on one side of the end cover, an external circulation air inlet and an external circulation air outlet connected with the external circulation channel are provided on the box body, and a heat exchange core arranged symmetrically between the internal circulation channel and the external circulation channel is provided in the box body.

[0006] The utility model is further configured such that a partition assembly for separating the inner circulation channel and the outer circulation channel is provided in the box body, and the partition assembly includes an intermediate partition plate arranged horizontally in the middle of the box body and a plurality of vertical partition plates distributed in an array around the intermediate partition plate, the inner circulation fan is fixedly connected to the top of the intermediate partition plate, and the outer circulation fan is fixedly connected to the bottom of the intermediate partition plate.

[0007] The present invention is further configured such that the middle partition plate and the plurality of vertical partition plates are distributed in an X shape within the box body.

[0008] The present invention is further configured such that the two heat exchange cores are symmetrically arranged on both sides of the middle partition plate and are arranged obliquely, and the vertical partition plate contacts two opposite corners of the heat exchange core.

[0009] The present invention is further configured such that a positioning piece is provided on one side of the vertical partition plate close to the middle partition plate, and the positioning piece abuts against the side of the heat exchange core.

[0010] The present utility model is further configured such that fixing plates are provided on both sides of the middle partition plate and the vertical partition plate. One of the fixing plates abuts against the inner bottom wall of the box body, and the other fixing plate abuts against the end cover.

[0011] The beneficial technical effects of the present utility model are:

[0012] By providing two heat exchange cores, the air outlets of the inner circulation channel and the outer circulation channel are arranged in two, thus ensuring the air outlet effect of the overall structure. Moreover, the two channels share the heat exchange cores, saving the occupied space. And the two adjacent sides of the two heat exchange cores form an X shape with the cross section of the partition assembly, so that the inner circulation channel and the outer circulation channel are arranged in an X shape, having a good air distribution effect, reducing the heat exchange pressure of a single heat exchange core, ensuring the service life of the heat exchange core, thus ensuring the heat exchange efficiency of the overall structure. And the inner circulation channel and the outer circulation channel are driven by different fans, ensuring both the heat exchange efficiency and the air outlet efficiency. Description of the Drawings

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is a schematic structural view of the present utility model with the end cover hidden.

[0015] In the figure, 1, box body; 11, outer circulation air outlet; 12, air collecting hood; 2, end cover; 21, inner circulation air inlet; 22, inner circulation air outlet; 3, middle partition; 4, vertical partition; 5, positioning member; 6, fixing plate; 7, inner circulation fan; 8, outer circulation fan; 9, heat exchange core. Specific Embodiments

[0016] In order to be able to more clearly understand the technical means of the present utility model and implement it in accordance with the content of the specification, the following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but not to limit the scope of the present utility model.

[0017] A heat exchanger, as Figure 1 and Figure 2 shown, includes a box body 1. An inner circulation channel and an outer circulation channel are provided inside the box body 1. An inner circulation fan 7 is provided inside the inner circulation channel, and an outer circulation fan 8 is provided inside the outer circulation channel. One side of the box body 1 is open, and the open part is detachably connected with an end cover 2 through bolts. The cross-sectional area of the end cover 2 is larger than that of the box body 1.

[0018] A partition assembly for separating the inner circulation channel and the outer circulation channel is provided in the box body 1. The partition assembly includes an intermediate partition plate arranged horizontally in the middle of the box body 1 and four vertical partition plates distributed in an array around the intermediate partition plate. The intermediate partition plate and the four vertical partition plates are distributed in an X-shape. The inner circulation fan 7 is fixedly connected to the top of the intermediate partition plate, and the outer circulation fan 8 is fixedly connected to the bottom of the intermediate partition plate. Heat exchange cores 9 are fixedly connected on both sides of the intermediate partition plate. The heat exchange core 9 is arranged at an angle. The vertical partition plates and the two opposite corners of the heat exchange core 9 collide with each other, so that the adjacent two sides of the two heat exchange cores 9 form an X-shape with the cross-section of the partition assembly. Since the inner circulation fan 7 and the outer circulation fan 8 are respectively arranged on both sides of the intermediate partition plate, the air inlet end of the inner circulation channel and the air inlet end of the outer circulation channel are arranged on both sides of the intermediate partition plate.

[0019] By setting two heat exchange cores 9, the air outlet ends of the inner circulation channel and the outer circulation channel are set in two, thereby ensuring the air outlet effect of the overall structure, and the two channels share the heat exchange core 9, saving space, and forming an X-shape between the adjacent two sides of the two heat exchange cores 9 and the cross section of the partition assembly, so that the inner circulation channel and the outer circulation channel are set in an X-shape, which has a good air balancing effect, reduces the heat exchange pressure of a single heat exchange core 9, ensures the service life of the heat exchange core 9, and thus ensures the heat exchange efficiency of the overall structure, and the inner circulation channel and the outer circulation channel are driven by different fans, ensuring the operation efficiency while also ensuring the air outlet efficiency;

[0020] The vertical partition plates on both sides of the same heat exchange core 9 are integrally formed with an inclined positioning piece 5 on the side close to each other. The positioning pieces 5 on the opposite vertical partition plates are centrally arranged. The positioning pieces 5 are in contact with the side edges of the heat exchange core 9, and the positioning pieces 5 on the opposite vertical partition plates are in contact with the opposite sides of the heat exchange core 9, thereby playing a good positioning role, making the installation of the heat exchange core 9 more stable, ensuring the stability of the distribution of the inner circulation channel and the outer circulation channel, and ensuring the heat exchange efficiency;

[0021] A first filter is provided on one side of the box body 1, and the air inlet end of the external circulation fan 8 is arranged opposite to the first filter, forming an external circulation air inlet, and a wind collecting cover 12 is fixedly connected to one side of the box body 1, and the first filter is located inside the wind collecting cover 12. The wind collecting cover 12 is used to expand the wind collecting effect of the overall structure and ensure the air intake effect of the overall structure; a second filter is provided on the top of the box body 1, and the second filter is connected to the external circulation channel to form an external circulation air outlet 11;

[0022] A third filter is provided on the end cover 2, and the air inlet end of the internal circulation fan 7 is arranged opposite to the third filter, so that the third filter forms an internal circulation air inlet 21. Through openings are provided on both sides of the external circulation fan 8 on the end cover 2 and communicate with the side of the heat exchange core 9 facing away from the internal circulation fan 7, so as to form an internal circulation air outlet 22;

[0023] On both sides of the intermediate partition plate and the vertical partition plate, fixing plates 6 are folded. The fixing plate 6 on one side abuts against the inner bottom wall of the box body 1, and the fixing plate 6 on the other side abuts against the end cover 2. Threaded holes are provided on the fixing plate 6. A support portion is folded inward at the open portion of the box body 1, and threaded holes are also provided on the support portion. The end cover 2 is threadedly connected to the open portion of the box body 1, and the end cover 2 can not only be threadedly connected to the support portion of the box body 1, but also be threadedly connected to the fixing plate 6, making the fixing of the end cover 2 more stable; and the threaded connection method enables the end cover 2 to be disassembled, facilitating the replacement or maintenance of the heat exchange core 9 and the fan in the later stage.

[0024] Working principle: When the external circulation fan 8 operates, the air passes through the air collecting hood 12. Through the air collecting hood 12, the ventilation volume is increased, and the air enters the box body 1 from the first filter, passes through the heat exchange core 9 on both sides of the external circulation fan 8, and is discharged to the outside of the box body 1 from the second filter; when the internal circulation fan 7 operates, the air enters the box body 1 from the third filter, and after passing through the heat exchange core 9 on both sides of the internal circulation fan 7, it is discharged to the outside of the box body 1 from the through opening, completing the heat exchange; and there are two air outlets, ensuring the air outlet efficiency of the air outlets.

[0025] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A heat exchanger, characterized in that: It includes a box body (1), one side of the box body (1) is open and is provided with an end cover (2) for sealing the box body (1). An inner circulation channel and an outer circulation channel are arranged in the box body (1). An inner circulation fan (7) is arranged in the inner circulation channel, and an outer circulation fan (8) is arranged in the outer circulation channel. An inner circulation air inlet (21) and an inner circulation air outlet (22) communicated with the inner circulation are formed on one side of the end cover (2). An outer circulation air inlet and an outer circulation air outlet (11) communicated with the outer circulation channel are formed on the box body (1). A heat exchange core (9) which is symmetrically arranged is arranged between the inner circulation channel and the outer circulation channel in the box body (1).

2. The heat exchanger according to claim 1, characterized in that: A separating component for separating the inner circulation channel and the outer circulation channel is arranged in the box body (1). The separating component includes a middle separating plate arranged in the middle of the box body (1) and horizontally, and a plurality of vertical separating plates arrayed around the middle separating plate. The inner circulation fan (7) is fixedly connected to the top of the middle separating plate, and the outer circulation fan (8) is fixedly connected to the bottom of the middle separating plate.

3. The heat exchanger according to claim 2, characterized in that: The middle separating plate and the plurality of vertical separating plates are distributed in an X shape in the box body (1).

4. The heat exchanger according to claim 2, wherein: The two heat exchange cores (9) are symmetrically arranged on both sides of the middle separating plate and are obliquely arranged. The vertical separating plates are in contact with the two opposite corners of the heat exchange core (9).

5. The heat exchanger according to claim 2, characterized in that: A positioning member (5) is arranged on one side of the vertical separating plate close to the middle separating plate, and the positioning member (5) is in contact with the side of the heat exchange core (9).

6. The heat exchanger according to claim 2, characterized in that: Fixing plates (6) are arranged on both sides of the middle separating plate and the vertical separating plates. The fixing plate (6) on one side is in contact with the inner bottom wall of the box body (1), and the fixing plate (6) on the other side is in contact with the end cover (2).

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