A new air blower for low energy consumption buildings

Abstract

A low-energy consumption fresh air fan for buildings, relates to the technical field of central air conditioning. A manifold is provided between the heat exchange fins in the fresh air duct and the heat exchange fins in the exhaust duct, the manifold connects the cavities of the heat exchange fins, a layer of capillary is adhered to the inner wall of the cavity of each heat exchange fin, each cavity and the manifold form a closed space, the closed space formed by each cavity and the manifold is in a negative pressure state, and the closed space formed by each cavity and the manifold is filled with working fluid. The beneficial effect of the utility model is that the heat exchange fins and the manifold form a set of heat pipe system, so that the fresh air can reuse the indoor cold air to the greatest extent, cool the fresh air, thereby reducing the load of the fan coil (central air conditioning refrigeration unit), reducing energy consumption, and there are no maintenance parts, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of central air conditioning, in particular to a new air fan for low-energy-consumption buildings. Background Art

[0002] When fresh air is delivered into the building in winter, the cold air is heated by the fan coil and enters the room, and the hot air in the room is discharged to the outside to achieve air replacement; in summer, the hot fresh air is cooled by the fan coil and enters the room, and the cold air in the room is discharged to the outside. There is a problem of wasting energy due to the entry of fresh air. If the energy of the indoor air can be utilized, the load of the fan coil will be greatly reduced. Utility Model Content

[0003] In order to solve the problem of energy waste in existing building fresh air systems, the utility model provides a low-energy consumption building fresh air fan.

[0004] The technical solution provided by the utility model is: a fresh air fan for low-energy buildings, including a fresh air duct and an exhaust duct, a fan is installed in the fresh air duct, heat exchange fins are installed in both the fresh air duct and the exhaust duct, the heat exchange fins are hollow structures with cavities, a manifold is provided between the heat exchange fins in the fresh air duct and the heat exchange fins in the exhaust duct, the manifold connects the cavities of each heat exchange fin, a layer of capillary is adhered to the inner wall of the cavity of each heat exchange fin, each cavity and the manifold form a closed space, the closed space formed by each cavity and the manifold is in a negative pressure state, and the closed space formed by each cavity and the manifold is filled with working fluid.

[0005] The heat exchange fins are arranged along the axial direction of the fresh air duct and the exhaust air duct, and each heat exchange fin is evenly arranged in the cross-sectional direction of the fresh air duct and the exhaust air duct.

[0006] The beneficial effects of the utility model are as follows: the heat exchange fins and the manifold form a heat pipe system. In summer, when the fan blows the hot fresh air from the outside into the room, the cold air in the room is discharged from the exhaust duct. At this time, the working fluid in the heat exchange fins in the new air duct instantly evaporates and absorbs heat. The evaporated working fluid condenses in the heat exchange fins of the exhaust duct, so that the new air can reuse the cold air in the room to the greatest extent and cool the new air, thereby reducing the load of the fan coil unit (central air conditioning refrigeration unit) and reducing energy consumption. In winter, the hot air in the room can also be reused for heat exchange to increase the temperature of the new air. There are no maintenance parts and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0008] In the figure, 1-fan, 2-fresh air duct, 3-exhaust duct, 4-heat exchange fins, 5-manifold, 6-cavity, 7-capillary. DETAILED DESCRIPTION

[0009] like Figure 1 As shown, a new air blower for low-energy buildings comprises a new air duct 2 and an exhaust duct 3, a blower 1 is installed in the new air duct 2, heat exchange fins 4 are installed in both the new air duct 2 and the exhaust duct 3, the heat exchange fins 4 are hollow structures with cavities 6, a header 5 is arranged between the heat exchange fins 4 in the new air duct 2 and the heat exchange fins 4 in the exhaust duct 3, the header 5 connects the cavities 6 of each heat exchange fin 4, a layer of capillary material 7 is adhered to the inner wall of the cavity 6 of each heat exchange fin 4, each cavity 6 and the header 5 form a closed space, the closed space formed by each cavity 6 and the header 5 is in a negative pressure state, and the closed space formed by each cavity 6 and the header 5 is filled Filled with working fluid, the above structure makes the heat exchange fins 4 and the manifold 5 form a heat pipe system. In summer, when the fan 1 blows the hot fresh air from the outside into the room, the cold air in the room is discharged from the exhaust duct 3. At this time, the working fluid in the heat exchange fins 4 in the new air duct 2 instantly evaporates and absorbs heat. The evaporated working fluid condenses in the heat exchange fins 4 of the exhaust duct 3, so that the new air can reuse the cold air in the room to the greatest extent and cool the new air, thereby reducing the load of the fan coil (central air conditioning refrigeration unit) and reducing energy consumption. In winter, the hot air in the room can also be reused for heat exchange to increase the temperature of the new air. There are no maintenance parts and the service life is long.

[0010] The heat exchange fins 4 are arranged along the axial direction of the fresh air duct 2 and the exhaust air duct 3, and each heat exchange fin 4 is evenly arranged in the cross-sectional direction of the fresh air duct 2 and the exhaust air duct 3 to improve the heat exchange efficiency.

Claims

1. A low-energy-consumption building fresh air fan, comprising a fresh air duct (2) and an exhaust duct (3), characterized in that: A fan (1) is installed in the fresh air duct (2). Heat exchange fins (4) are installed in both the fresh air duct (2) and the exhaust duct (3). The heat exchange fins (4) are hollow structures with cavities (6). A manifold (5) is provided between the heat exchange fins (4) in the fresh air duct (2) and the heat exchange fins (4) in the exhaust duct (3). The manifold (5) connects the cavities (6) of the heat exchange fins (4). A layer of capillary material (7) is adhered to the inner wall of the cavity (6) of each heat exchange fin (4). Each cavity (6) and the manifold (5) form a closed space. The closed space formed by each cavity (6) and the manifold (5) is in a negative pressure state. The closed space formed by each cavity (6) and the manifold (5) is filled with working fluid.

2. A low-energy consumption building fresh air fan according to claim 1, characterized in that: The heat exchange fins (4) are arranged along the axial direction of the fresh air duct (2) and the exhaust air duct (3), and each heat exchange fin (4) is evenly arranged in the cross-sectional direction of the fresh air duct (2) and the exhaust air duct (3).

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