Anti-freezing direct expansion coil pipe with low air inlet temperature

Abstract

The utility model relates to a direct expansion coil pipe, in particular to an anti-freezing direct expansion coil pipe with low air inlet temperature, which comprises two side plates, a plurality of copper pipes are arranged between the two side plates, and a plurality of fins are fixedly connected on the plurality of copper pipes side by side. The ends of the same side face of the multiple copper pipes can be connected through a connecting component, and the ends of the two copper pipes can be connected. A plurality of connecting stepped columns are mounted between the two side plates, each connecting stepped column is provided with a locking section and a threaded section, the diameter of the locking section of each connecting stepped column is larger than that of the threaded section of each connecting stepped column, a plurality of mounting holes are formed in the side plates, the end parts of the locking sections abut against the side plates, and the threaded sections penetrate through the mounting holes; and mounting and dismounting are convenient, and the copper pipe at the frozen part can be rapidly treated.

Description

Technical Field

[0001] The utility model relates to a direct expansion coil, and more specifically to an anti-freezing direct expansion coil with a low inlet air temperature. Background Art

[0002] A direct expansion coil is a device used in refrigeration and air conditioning systems, mainly for directly evaporating refrigerant and absorbing the heat of the surrounding environment; for example, the patent with the publication number CN109631186A discloses a low-noise modular air handling unit, including an air inlet section, a mixing section, a primary filter, a flow equalizing section, a supply fan, a secondary filter, a direct expansion section, a heating section, a humidifying section, and an air outlet section; however, due to its internal bending structure and long length, it is not convenient to clean when freezing occurs inside the direct expansion coil. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an anti-freezing direct expansion coil with a low inlet air temperature, which is convenient for installation and disassembly and can quickly process the copper pipes at the frozen parts.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] An anti-freezing direct expansion coil with a low inlet air temperature includes two side plates, and a plurality of copper pipes are installed between the two side plates. A plurality of fins are fixedly connected side by side on the plurality of copper pipes, and the ends of the plurality of copper pipes on the same side can be connected through a connecting component to complete the connection between the ends of two copper pipes;

[0006] A plurality of connecting stepped columns are installed between the two side plates. The connecting stepped columns are provided with a stop section and a threaded section. The diameter of the stop section of the connecting stepped column is larger than the diameter of the threaded section of the connecting stepped column. A plurality of mounting holes are provided on the side plates. The end of the stop section abuts against the side plate, and the threaded section passes through the mounting holes;

[0007] A nut is threadedly connected to the threaded section, and the nut abuts against the side plate;

[0008] A plurality of mounting sleeves are installed on the side plates, and the copper pipes pass through the mounting sleeves and are installed on the side plates;

[0009] The mounting sleeves are made of elastic materials;

[0010] The end of the copper pipe is provided with a threaded end, and an insertion end is fixedly connected to the threaded end;

[0011] A sealing ring is installed on the insertion end;

[0012] The connecting component includes a metal hose and connecting pipes fixedly connected to both ends of the metal hose. Threaded sleeves are threadedly connected to both connecting pipes;

[0013] The insertion end can be inserted into the connecting pipe, and the end of the connecting pipe abuts against the sealing ring.

[0014] The outer diameter of the connecting pipe is the same as that of the threaded end, and the threaded sleeve can move from the connecting pipe to the threaded end through the thread to complete the connection between the connecting pipe and the threaded end.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The copper pipes can be quickly installed and disassembled through the connecting components, so that the copper pipes at the frozen parts can be quickly processed. Moreover, according to different usage requirements, the ends of two copper pipes at different positions can be connected to complete the connection between the two copper pipes, and then the length of the refrigerant flowing through the copper pipes can be adjusted to meet different usage requirements. Description of the Drawings

[0017] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific implementation methods.

[0018] Figure 1 is a schematic structural view of the anti-freezing direct expansion coil with a low inlet air temperature of the present utility model;

[0019] Figure 2 is a schematic structural view of the side plate of the present utility model;

[0020] Figure 3 is a schematic structural view of the connecting stepped column of the present utility model;

[0021] Figure 4 is a schematic structural view of the connecting component of the present utility model;

[0022] Figure 5 is a schematic cross-sectional view of the connecting component of the present utility model;

[0023] Figure 6 is a schematic structural view of the fin of the present utility model.

[0024] In the figure: side plate 11; mounting sleeve 12; connecting stepped column 21; nut 22; connecting component 30; metal hose 31; connecting pipe 32; threaded sleeve 33; fin 51; copper pipe 61; threaded end 62; insertion end 63; sealing ring 64. Specific Embodiment

[0025] The following further elaborates on the present utility model in detail in conjunction with the drawings.

[0026] As Figures 1 to 6 shown, in order to achieve the technical effect of "being convenient for installation and disassembly and being able to quickly process the copper pipes at the frozen parts", the structure and function of an anti-freezing direct expansion coil with a low inlet air temperature will be elaborated in detail below;

[0027] When in use, as Figure 1 shown, an anti-freezing direct expansion coil with a low inlet air temperature includes two side plates 11. Between the two side plates 11, a plurality of copper tubes 61 are installed. A plurality of fins 51 are fixedly connected in parallel on the plurality of copper tubes 61. Connections between the ends of the plurality of copper tubes 61 on the same side can be completed through a connecting component 30;

[0028] A plurality of connecting stepped columns 21 are installed between the two side plates 11. The connecting stepped columns 21 are provided with a stop section and a threaded section. The diameter of the stop section of the connecting stepped column 21 is larger than the diameter of the threaded section of the connecting stepped column 21. A plurality of mounting holes are provided on the side plates 11. The end of the stop section abuts against the side plate 11, and the threaded section passes through the mounting hole; A nut 22 is threadedly connected to the threaded section, and the nut 22 abuts against the side plate 11;

[0029] The fixed connection between the two side plates 11 is completed through a plurality of connecting stepped columns 21. During installation, first connect the plurality of fins 51 and the plurality of copper tubes 61 to form a structure as Figure 6 shown. Insert one end of the plurality of copper tubes 61 into a plurality of mounting sleeves 12 on one side plate 11. Install the plurality of connecting stepped columns 21 between the two side plates 11. Insert the other ends of the plurality of copper tubes 61 into a plurality of mounting sleeves 12 on the other side plate 11. Thread the nut 22 onto the threaded section, thereby completing the installation as Figure 1 shown;

[0030] In such an installation method, each copper tube 61 is independent, and thus the copper tubes 61 at the frozen part can be quickly processed;

[0031] The plurality of copper tubes 61 are connected to each other to form a direct expansion coil, that is, the tail ends of the copper tubes 61 are connected to the tail ends of the copper tubes, and the head ends of the copper tubes 61 are connected to the head ends of the copper tubes. The connection between the copper tubes 61 and the copper tubes 61 is completed through the connecting component 30. According to different usage requirements, the connections of copper tubes at different positions and in different quantities are completed, thereby adjusting the length of the refrigerant flowing through the copper tubes to meet different usage requirements;

[0032] A plurality of mounting sleeves 12 are installed on the side plate 11. The copper tubes 61 pass through the mounting sleeves 12 and are installed on the side plate 11;

[0033] The mounting sleeve 12 is made of an elastic material;

[0034] The end of the copper tube 61 is provided with a threaded end 62, and an insertion end 63 is fixedly connected to the threaded end 62;

[0035] A sealing ring 64 is installed on the insertion end 63;

[0036] The connecting component 30 includes a metal hose 31 and connecting pipes 32 fixedly connected to both ends of the metal hose 31. Threaded sleeves 33 are connected to both of the two connecting pipes 32 by threads;

[0037] The insertion end 63 can be inserted into the connecting pipe 32, and the end of the connecting pipe 32 abuts against the sealing ring 64;

[0038] The outer diameter of the connecting pipe 32 is the same as the outer diameter of the threaded end 62. The threaded sleeve 33 can move from the connecting pipe 32 to the threaded end 62 through the threads to complete the connection between the connecting pipe 32 and the threaded end 62;

[0039] When it is necessary to connect two copper pipes 61, as Figure 2 shown, insert the insertion end 63 into the connecting pipe 32, the end of the connecting pipe 32 abuts against the sealing ring 64, rotate the threaded sleeve 33, and the threaded sleeve 33 moves from the connecting pipe 32 to the threaded end 62 through the threads to complete the connection between the connecting pipe 32 and the threaded end 62. Install the other connecting pipe 32 at the designated position, thereby completing the connection between the two copper pipes 61.

Claims

1. A low inlet air temperature antifreeze direct expansion coil, comprising two side plates (11), characterized in that: A plurality of copper tubes (61) are installed between the two side plates (11), a plurality of fins (51) are fixedly connected side by side to the plurality of copper tubes (61), and the ends of the plurality of copper tubes (61) on the same side can be connected to each other via a connecting component (30).

2. The low inlet air temperature antifreeze direct expansion coil according to claim 1, characterized in that: A plurality of connecting step columns (21) are installed between the two side plates (11), the connecting step columns (21) are provided with a stop section and a threaded section, the diameter of the stop section of the connecting step column (21) is larger than the diameter of the threaded section of the connecting step column (21), a plurality of mounting holes are provided on the side plates (11), the ends of the stop sections are pressed against the side plates (11), and the threaded sections pass through the mounting holes.

3. The low inlet air temperature antifreeze direct expansion coil according to claim 2, characterized in that: The threaded section is connected with a nut (22) via a thread, and the nut (22) is pressed against the side plate (11).

4. The anti-freezing direct expansion coil with low air inlet temperature according to claim 1, characterized in that: A plurality of mounting sleeves (12) are mounted on the side plate (11), and the copper tube (61) passes through the mounting sleeves (12) and is mounted on the side plate (11).

5. The low inlet air temperature antifreeze direct expansion coil according to claim 4, characterized in that: The mounting sleeve (12) is made of elastic material.

6. The low inlet air temperature antifreeze direct expansion coil according to claim 1, characterized in that: The end of the copper tube (61) is provided with a threaded end (62), and an insertion end (63) is fixedly connected to the threaded end (62).

7. The low inlet air temperature antifreeze direct expansion coil according to claim 6, characterized in that: A sealing ring (64) is installed on the insertion end (63).

8. The low inlet air temperature antifreeze direct expansion coil according to claim 7, characterized in that: The connecting component (30) comprises a metal hose (31) and connecting pipes (32) fixedly connected to both ends of the metal hose (31), and threaded sleeves (33) are connected to the two connecting pipes (32) via threads.

9. The low inlet air temperature antifreeze direct expansion coil according to claim 8, characterized in that: The insertion end (63) can be inserted into the connecting pipe (32), and the end of the connecting pipe (32) is pressed against the sealing ring (64).

10. The low inlet air temperature antifreeze direct expansion coil according to claim 9, characterized in that: The outer diameter of the connecting pipe (32) is the same as the outer diameter of the threaded end (62), and the threaded sleeve (33) can move from the connecting pipe (32) to the threaded end (62) through the thread to complete the connection between the connecting pipe (32) and the threaded end (62).

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