Heat exchange device

Abstract

The utility model discloses a heat exchange device which comprises a shell, a heat exchanger and a heat exchanger. The heat exchange unit is arranged on the side wall of the accommodating cavity; and the adjusting unit is arranged on the air inlet side of the heat exchange unit and located on the upper side of the heat exchange unit in the first direction, and the adjusting unit is used for adjusting the amount of air flowing through the heat exchange unit so that the air outlet temperature of the heat exchange unit can be uniform. Compared with the prior art, the air inlet side of the heat exchange unit is provided with the adjusting unit, the adjusting unit is arranged on the upper side of the heat exchange unit in the first direction, the adjusting unit is used for adjusting the air volume flowing through the heat exchange unit so as to adjust the air outlet temperature of the heat exchange unit, the overall air outlet temperature of the heat exchange unit is uniform, and the heat exchange efficiency is improved. And therefore, the air outlet uniformity of the heat exchange device can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a heat exchange device. Background Technology

[0002] Currently, in the research and development of data center air conditioning, parallel flow heat exchangers have the drawback of not being able to meet the requirements for uniform airflow. Especially with the rapid development of data centers today, the requirements for airflow temperature are becoming increasingly stringent. The use of parallel flow heat exchangers results in a situation where the airflow is hot at the top and cold at the bottom. The density of the hot air is even lower, and the hot air rises, making it easy for heat to accumulate in the upper part of the data center, causing localized high temperatures. This is extremely detrimental to the heat dissipation of the data center.

[0003] Currently, the main way to improve the uniformity of airflow in parallel flow heat exchangers is to modify the control logic. In the application environment of small fans, a corresponding speed deviation is set. For the overheated part of the coil, the speed of the fan in that area is reduced to prevent hot air from being carried out and to reduce the airflow at the top of the coil. Tests have shown that the maximum temperature difference can be reduced from about 10℃ to about 5℃.

[0004] However, reducing fan speed also has many drawbacks. Firstly, there's the issue of airflow. Actual measurements show that reducing speed isn't linear; at full speed, a single fan needs to be reduced by at least 60% to see a significant effect. Furthermore, parallel flow coils involve a larger overheated zone, requiring a greater number of fan units. Reducing the speed also significantly decreases the overall airflow of the unit, potentially by 10%-15%, limiting the performance of smaller airflow fans. Secondly, due to the nature of the unit, this solution isn't suitable for all models. For example, in large airwall units using 630mm EC centrifugal fans, the design often involves one fan per coil. This design cannot accommodate varying airflow deviations in the supply and return of a single coil, thus failing to optimize airflow uniformity. Utility Model Content

[0005] The purpose of this invention is to provide a heat exchange device to solve the problems in the prior art and improve the uniformity of air outlet of the heat exchange device.

[0006] This utility model provides a heat exchange device, including:

[0007] A housing having a receiving cavity;

[0008] A heat exchange unit is disposed on the side wall of the receiving cavity;

[0009] An adjusting unit is arranged at the air inlet side of the heat exchange unit and located at the upper side of the heat exchange unit in the first direction, and is used to adjust the air flow through the heat exchange unit so as to make the air outlet temperature of the heat exchange unit uniform.

[0010] The heat exchange device as described above, preferably, the adjusting unit comprises an adjusting frame and a filter core assembly arranged in the adjusting frame, and the filter core assembly is used to shield the heat exchange unit to adjust the air flow through the heat exchange unit.

[0011] The heat exchange device as described above, preferably, a first limiting piece is arranged on the adjusting frame and is arranged at the side of the adjusting frame away from the heat exchange unit, and the first limiting piece is used to limit the filter core assembly from being taken out of the adjusting frame.

[0012] The heat exchange device as described above, preferably, the first limiting piece comprises a plurality of limiting rods, and the limiting rods are arranged on the adjusting frame at intervals, and adjacent two limiting rods have a preset included angle.

[0013] The heat exchange device as described above, preferably, the adjusting unit comprises a plurality of adjusting units arranged in sequence along the first direction, and the sizes of the adjusting frames in the first direction are different.

[0014] The heat exchange device as described above, preferably, the adjusting unit further comprises a second limiting piece arranged thereon, and the second limiting piece is used to limit the movement of the filter core assembly in the second direction so that the filter core assembly can be attached to the heat exchange unit.

[0015] The heat exchange device as described above, preferably, the second limiting piece comprises a limiting block arranged at the edge of the adjusting frame, and the limiting block abuts against the filter core assembly.

[0016] The heat exchange device as described above, preferably, the adjusting unit further comprises a blocking piece arranged between the adjusting unit and the heat exchange unit to prevent the adjusting frame from colliding with the heat exchange unit.

[0017] The heat exchange device as described above, preferably, the adjusting unit is detachably connected with the shell.

[0018] The heat exchange device as described above, preferably, the shell comprises a side plate detachably connected with the shell.

[0019] Compared with the prior art, the adjusting unit is arranged on the air inlet side of the heat exchange unit, and the adjusting unit is arranged on the upper side of the heat exchange unit in the first direction, the air volume flowing through the heat exchange unit is adjusted by the adjusting unit, the air outlet temperature of the heat exchange unit is adjusted, the air outlet temperature of the whole heat exchange unit is uniform, and the adjustment of the air outlet uniformity of the heat exchange device is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of the heat exchange device from a first viewing angle according to an embodiment of the present application;

[0021] Figure 2 is a perspective view of the heat exchange device from a second viewing angle according to an embodiment of the present application;

[0022] Figure 3 is Figure 1 an enlarged view of a partial A;

[0023] Figure 4 is a front view of the heat exchange device according to an embodiment of the present application;

[0024] Figure 5 is Figure 4 an enlarged view of a partial B;

[0025] Figure 6 is Figure 4 an enlarged view of a partial C.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 10 - shell, 11 - containing cavity, 12 - side plate;

[0028] 20 - heat exchange unit;

[0029] 30 - adjusting unit, 31 - adjusting frame, 32 - filter element assembly, 33 - first limiting piece, 331 - limiting rod, 34 - second limiting piece, 341 - limiting block, 342 - flange;

[0030] 40 - connecting piece, 41 - fixed plate, 42 - bolt piece;

[0031] D1 - first direction, D2 - second direction, D3 - third direction. DETAILED DESCRIPTION

[0032] The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be explained as a limitation of the present application.

[0033] Referring to Figures 1 to 6 the drawings, the present application provides a heat exchange device, which comprises a shell 10, a heat exchange unit 20 and an adjusting unit 30, wherein:

[0034] The shell 10 has a containing cavity 11, and the heat exchange unit 20 and the adjusting unit 30 are arranged in the containing cavity 11.

[0035] The heat exchange unit 20 is arranged on the side wall of the containing cavity 11, and a plurality of heat exchange units 20 can be arranged on the side wall of the containing cavity 11, and the plurality of heat exchange units 20 are uniformly distributed on the side wall of the containing cavity 11. Arranging a plurality of heat exchange units 20 can improve the heat exchange efficiency of the heat exchange device.

[0036] Referring to FIG. 1, Figure 1 and Figure 2 The number of adjusting units 30 is matched with the number of heat exchange units 20, the adjusting unit 30 is arranged on the air inlet side of the corresponding heat exchange unit 20, and is located on the upper side of the heat exchange unit 20 in the first direction D1, the first direction D1 is the direction of gravity, and then each adjusting unit 30 is arranged in the upper region of the corresponding heat exchange unit 20. Because the temperature of the upper region of the heat exchange unit 20 is relatively high, and the temperature of the lower region of the heat exchange unit 20 is relatively low, the temperature difference of the air outlet of the upper region and the lower region is large, thereby causing the temperature of the air outlet side of the heat exchange unit 20 to be non-uniform. The adjusting unit 30 is arranged above the heat exchange unit 20 to adjust the air volume passing through the upper region of the heat exchange unit 20, so as to reduce the air outlet temperature of the upper region of the heat exchange unit 20, reduce the temperature difference of the air outlet side of the upper region and the lower region of the heat exchange unit 20, and thereby improve the air outlet uniformity of the heat exchange unit 20.

[0037] In the embodiments provided by the present application, referring to FIG. 1, Figure 3 The adjusting unit 30 includes an adjusting frame 31 and a filter element assembly 32 arranged in the adjusting frame 31, and the filter element assembly 32 is used to shield the heat exchange unit 20 to adjust the air volume passing through the heat exchange unit 20.

[0038] When the adjusting unit 30 is installed, the size of the adjusting frame 31 can be set according to the required air outlet temperature of the heat exchange unit 20, and a filter element assembly 32 with a corresponding thickness is arranged in the adjusting frame 31. After installation is completed, the filter element assembly 32 is attached to the region of the heat exchange unit 20 that needs to be shielded. The thickness of the filter element assembly 32 depends on the air volume to be blocked, and is set according to the temperature difference between the upper region and the lower region of the heat exchange unit 20.

[0039] After the filter element assembly 32 is installed in the adjusting frame 31, in order to prevent the filter element assembly 32 from being pulled out of the adjusting frame 31, referring to FIG. 1, Figure 3 the adjusting frame 31 of the present application is provided with a first limiting piece 33, the first limiting piece 33 is arranged on the side of the adjusting frame 31 away from the heat exchange unit 20, and the first limiting piece 33 can limit the filter element assembly 32 from being pulled out of the adjusting frame 31.

[0040] In the embodiments provided by the present application, referring to FIG. 1,Figure 5 As shown, the first limiting member 33 comprises a plurality of limiting rods 331, which are arranged on the adjusting frame 31 at intervals, and have a preset included angle between adjacent limiting rods 331. Each limiting rod 331 is fixed to the adjusting frame 31 in an inclined manner, and under the joint action of the plurality of limiting rods 331, the filter core assembly 32 can be prevented from moving to a position outside the adjusting frame 31. Preferably, the limiting rod 331 is made of galvanized steel wire, and a plurality of segments of the galvanized steel wire are arranged on the adjusting frame 31 in an inclined manner, which can prevent the filter core assembly 32 from falling out and also will not affect the adjustment effect of the filter core assembly 32 on the outlet air temperature during the operation of the heat exchange unit 20.

[0041] In an available embodiment, the adjusting unit 30 comprises a plurality of adjusting units 30, which are arranged in sequence along the first direction D1. In the first direction D1, the sizes of the plurality of adjusting frames 31 are different, that is, adjusting frames 31 of different sizes can be arranged along the first direction D1, and different thicknesses and heights of the filter core assembly 32 can be arranged in the plurality of adjusting frames 31 to shield different areas of the heat exchange unit 20, so as to meet the adjustment requirements of the heat exchange unit 20 on the outlet air temperature.

[0042] Preferably, referring to Figure 2 As shown, two adjusting units 30 are arranged above each heat exchange unit 20, and the adjusting frames 31 of the two adjusting units 30 are arranged above and below along the first direction D1, and the two adjusting frames 31 have different heights to accommodate filter core assemblies 32 of different sizes. The two adjusting units 20 can shield the areas of the heat exchange unit 20 that need to adjust the air volume above the area, and because the air volume required by different areas is different, different thicknesses and heights of the filter core assembly 32 can be arranged in the corresponding adjusting frame 31 to make the outlet air temperature of the outlet side of the heat exchange unit 20 uniform.

[0043] In the present application, two adjusting units 30 are arranged above each heat exchange unit 20. On the one hand, it can meet the needs when multiple areas of the heat exchange unit 20 need to be shielded; on the second hand, it can avoid the shielding of the adjusting frame 31 to the heat exchange unit 20 within a certain range; on the third hand, if the number of adjusting units 30 is too large, the adjusting frame 31 will shield multiple areas of the heat exchange unit 20, which will cause a small part of the air volume to be lost, thereby affecting the outlet air temperature of the heat exchange unit 20.

[0044] After the filter core assembly 32 is installed to the adjusting frame 31, it needs to be kept in close contact with the heat exchange unit 20 to achieve the optimal adjustment efficiency of the filter core assembly 32. Therefore, in order to avoid the separation of the filter core assembly 32 from the surface of the heat exchange unit 20, in the embodiments provided by the present application, referring to Figure 3 and Figure 6As shown, the adjusting unit 30 further comprises a second limiting member 34, which is configured to limit the movement of the filter core assembly 32 in a second direction D2, which is perpendicular to the first direction D1 and is the width direction of the adjusting frame 31.

[0045] In an embodiment, referring to Figure 3 As shown, the second limiting member 34 comprises a limiting block 341, which is arranged at the edge of the adjusting frame 31 away from the heat exchange unit 20. After the filter core assembly 32 is installed on the adjusting frame 31, the filter core assembly 32 abuts against the limiting block 341, thereby limiting the movement of the filter core assembly 32 in the direction away from the heat exchange unit 20 (i.e. the second direction D2). Preferably, the limiting block 341 comprises two limiting blocks 341, which are arranged at the opposite ends of the adjusting frame 31 in the length direction, so as to improve the limiting effect of the limiting block 341.

[0046] Further, the limiting block 341 has a bent portion 342, which is bent towards the bottom of the adjusting frame 31 after the limiting block 341 is fixed on the adjusting frame 31. The bent portion 342 can shield the gap between the adjusting frame 31 and the heat exchange unit 20, thereby preventing the hot air from flowing into the heat exchange unit 20 and affecting the outlet air temperature of the heat exchange unit 20.

[0047] During the installation of the adjusting frame 31, in order to prevent the adjusting frame 31 from colliding with the heat exchange unit 20 and causing the heat exchange unit 20 to leak, the adjusting unit 30 of the present application further comprises a blocking member, which is arranged between the side of the adjusting frame 31 close to the heat exchange unit 20 and the heat exchange unit 20. On the one hand, the arrangement of the blocking member can avoid the collision between the adjusting frame 31 and the heat exchange unit 20, and even if the collision occurs, the blocking member can prevent the heat exchange unit 20 from being damaged due to the collision. On the other hand, the gap between the adjusting frame 31 and the heat exchange unit 20 is filled due to the presence of the blocking member, thereby preventing the hot air from flowing into the heat exchange unit 20 through the gap, so as to ensure the stability of the outlet air temperature of the heat exchange unit 20.

[0048] Specifically, the blocking member of the present application is a cotton layer with a thickness of 5mm, which is used to fill the gap between the heat exchange unit 20 and the adjusting frame 31. The cotton layer can not only protect the heat exchange unit 20 from being damaged due to the collision, but also prevent the hot air from flowing into the heat exchange unit 20 through the gap, without affecting the air flow on the inlet side of the heat exchange unit 20.

[0049] In other embodiments, the blocking member can be selected from other materials or structures that can avoid the collision between the heat exchange unit 20 and the adjusting frame 31, which are not limited herein.

[0050] To facilitate the replacement of adjustment units 30 of different sizes, the adjustment unit 30 of this application is detachably connected to the housing 10. In the embodiments provided in this application, the heat exchange device further includes a connector 40, which connects the adjustment frame 31 to the housing 10. (Refer to...) Figure 6 As shown, the connector 40 includes a fixing plate 41 and bolts 42. The fixing plate 41 is mounted on the housing 10. Two adjusting frames 31 of different sizes can be connected to the housing 10 through the fixing plate 41. Specifically, the two adjusting frames 31 are connected to the fixing plate 41 by bolts 42, thus achieving connection with the housing 10. When it is necessary to replace the adjusting frame 31, the bolts 42 are removed, and the connection between the adjusting frame 31 and the fixing plate 41 is released.

[0051] Reference Figure 1 As shown, the housing 10 also includes a side plate 12, which is detachably connected to the housing 10. When replacing the adjustment unit 30, simply remove the side plate 12 and take out or install the adjustment unit 30 from inside the housing 10 along the third direction D3 (i.e., the length direction of the adjustment frame 31). The operation is convenient and facilitates the maintenance of the adjustment unit 30 and the heat exchange unit 20.

[0052] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A heat exchange device, characterized by, The application relates to a heat exchange device. The heat exchange device comprises a housing, a heat exchange unit arranged on a side wall of the housing, and an adjusting unit arranged on an air inlet side of the heat exchange unit and located on an upper side of the heat exchange unit in a first direction, the adjusting unit being used for adjusting an air volume flowing through the heat exchange unit so as to make the air outlet temperature of the heat exchange unit uniform. The adjusting unit comprises an adjusting frame and a filter core assembly arranged in the adjusting frame, the filter core assembly being used for shielding the heat exchange unit to adjust the air volume flowing through the heat exchange unit. A first limiting piece is arranged on the adjusting frame and is arranged on a side of the adjusting frame away from the heat exchange unit, the first limiting piece being used for limiting the filter core assembly from being taken out of the adjusting frame.

2. The heat exchange device according to claim 1, wherein The first limiting piece comprises a plurality of limiting rods, the limiting rods being arranged on the adjusting frame at intervals, and adjacent two limiting rods having a preset included angle.

3. The heat exchange device according to claim 2, wherein The adjusting unit comprises a plurality of adjusting units, the adjusting units being arranged in sequence along the first direction, and the sizes of the adjusting frames being different in the first direction.

4. The heat exchange device according to claim 3, wherein The adjusting unit further comprises a second limiting piece, the second limiting piece being used for limiting the filter core assembly from moving in a second direction so that the filter core assembly can be attached to the heat exchange unit.

5. The heat exchange device according to claim 4, wherein The second limiting piece comprises a limiting block arranged on an edge of the adjusting frame, and the limiting block is in abutment with the filter core assembly.

6. The heat exchange device according to claim 2, wherein The adjusting unit further comprises a blocking piece arranged between the adjusting unit and the heat exchange unit to prevent the adjusting frame from colliding with the heat exchange unit.

7. The heat exchange device according to claim 6, wherein The adjusting unit and the housing are detachably connected.

8. The heat exchange device according to claim 2, wherein The housing comprises a side plate, and the side plate and the housing are detachably connected.

9. The heat exchange device according to claim 1, wherein ​ 10. The heat exchange device of claim 1, wherein ​

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