Heat dissipation device for building

Abstract

The utility model provides a heat dissipation device for a building, which relates to the technical field of heat dissipation of the building, and comprises a heating part fixed at the upper end of an exhaust channel of the building, an unpowered air cap is arranged at the upper end of the heating part, the heating part comprises a heating box, the heating box is square, and a heat absorption coating is arranged on the outer side surface of the heating box. A plurality of communicating pipes are arranged at the upper end of the heating box at intervals, the communicating pipes are connected with the heating box in a penetrating mode, the cross section of each communicating pipe is in a V shape, and heat conduction solutions are stored in the heating box and the communicating pipes. The air draft and heat dissipation effects of the unpowered air cap can be improved, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of building heat dissipation, in particular to a heat dissipation device for buildings. Background Art

[0002] For some buildings, in seasons with high temperatures, the temperature inside the building can be reduced by air-conditioning refrigeration equipment, but the required energy consumption is relatively high. When dissipating heat from some buildings, a common type of power-free wind cap is often used. According to the natural laws of air and the principle of air flow, it is reasonably set at the top of the roof, which can quickly discharge the hot air inside the room and improve the indoor environment. In order to improve the heat dissipation effect, the conventional power-free wind cap installed at the top of the exhaust duct is sometimes not very ideal in the effect of drawing air and dissipating heat due to the influence of outdoor air flow, and it is difficult to meet the requirements of ventilation and heat dissipation. Content of the Utility Model

[0003] The purpose of the utility model is to provide a heat dissipation device for buildings, aiming to solve the problems mentioned in the above background art.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: The heat dissipation device for buildings includes a heating part fixed to the upper end of the building exhaust duct. An unpowered wind cap is arranged at the upper end of the heating part. The heating part includes a heating box, the heating box is in a square shape with a hollow center, an endothermic coating is arranged on the outer side surface of the heating box, a plurality of connecting pipes are arranged at intervals at the upper end of the heating box, the connecting pipes are connected to the heating box in a penetrating manner, the cross section of the connecting pipe is in a V shape, and a heat-conducting solution is stored inside the heating box and the connecting pipes.

[0005] Preferably, a heat preservation board is arranged at the side surface of the heating box that is in the shade for a long time.

[0006] Preferably, enclosing plates are respectively arranged at the upper and lower ends of the heating box, and the enclosing plates of the heating box are connected to the unpowered wind cap and the exhaust duct by bolts.

[0007] Preferably, protection plates are respectively arranged on the outer surfaces of the two enclosing plates.

[0008] Preferably, the end of the bolt is located between the protection plate and the enclosing plate.

[0009] The beneficial effect of the utility model is that when the device is in use, the air passing through the heating part is heated by sunlight, and by using the characteristic that hot air rises, the effect of drawing air and dissipating heat of the unpowered wind cap can be increased, and the use effect is good. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of a specific embodiment of the utility model.

[0011] Figure 2 It is a schematic structural diagram inside the heating box of a specific embodiment of the present utility model.

[0012] In the figure: 1, exhaust air channel; 2, non-powered wind cap; 3, heating box; 4, connecting pipe; 5, heat preservation board; 6, enclosing board; 7, bolt; 8, protection board. Specific embodiments

[0013] The following further describes the specific embodiments of the present utility model in conjunction with the accompanying drawings.

[0014] As Figure 1-2 shown, a heat dissipation device for buildings includes a heating part fixed to the upper end of the building exhaust air channel 1. A non-powered wind cap 2 is provided at the upper end of the heating part. The heating part includes a heating box 3. The heating box 3 is in a mouth shape. An endothermic coating is provided on the outer side surface of the heating box 3. A plurality of connecting pipes 4 are spacedly arranged at the upper end of the heating box 3. The connecting pipes 4 are connected to the heating box 3 in a penetrating manner. The cross-section of the connecting pipes 4 is in a V shape to reduce the obstruction to air flow. A heat-conducting solution is stored inside the heating box 3 and the connecting pipes 4.

[0015] The heating box 3 is made of a metal material, which can be copper-aluminum alloy. By coating a solar energy-absorbing coating on the outer surface of the heating box 3, an endothermic coating is formed. The endothermic coating is black. The heat-conducting solution can be water or heat-conducting oil. After the endothermic coating absorbs sunlight, the heat-conducting solution located inside the heating box 3 is heated. The part of the heat-conducting solution with a higher temperature will move towards the top of the heating box 3. Some of the heat-conducting solution with a higher temperature enters the connecting pipes 4. When the non-powered wind cap 2 rotates, the indoor air is discharged outdoors through the exhaust air channel 1 and the heating box 3. When the indoor air passes through the area of the heating box 3, the heating box 3 heats the air passing through the heating box 3 through the inner side wall of the heating box 3 and the windward surface of the connecting pipes 4. The hot air rises, thereby improving the chimney effect of the non-powered wind cap 2.

[0016] Further, a heat preservation board 5 is provided at the side of the heating box 3 that is backlit for a long time. When installing the heating box 3 on the exhaust air channel 1, among the four side surfaces of the heating box 3, generally only three side surfaces can be directly irradiated by sunlight for a long time, and the other side surface is irradiated by light for a shorter time or even cannot be irradiated by light. Therefore, in order to save the solar energy-absorbing coating, the coating can be applied only on three of the side surfaces to save the coating. The last surface can be called the backlit surface. Setting the heat preservation board 5 on this surface can reduce the heat loss on this surface.

[0017] Furthermore, baffles 6 are respectively arranged at the upper and lower ends of the heating box 3. The baffles 6 of the heating box 3 are connected to the power-free wind cap 2 and the exhaust passage 1 by bolts 7. A plurality of through holes are respectively formed in the lower end of the power-free wind cap 2 and the outer surface of the baffle 6. Nuts are arranged inside the through holes on the power-free wind cap 2. When placing the power-free wind cap 2 inside the baffle 6, it is only necessary to align the through holes on the power-free wind cap 2 with the through holes on the baffle 6, and then pass the bolts 7 through the through holes on the baffle 6 and the power-free wind cap 2. Through the cooperation of the bolts 7 and the nuts, the power-free wind cap 2 and the baffle 6 are connected and fixed together. Threaded holes are arranged on the inner wall of the exhaust passage 1. Through the cooperation of the bolts 7 and the threaded holes, the baffle 6 is fixed to the exhaust passage 1.

[0018] Furthermore, guard plates 8 are respectively arranged on the outer surfaces of the two baffles 6. The guard plates 8 are made of rubber. The guard plates 8 are in an overall annular shape. The guard plates 8 can slide on the baffles 6 and can be bound to the outer surfaces of the baffles 6 by their own elasticity. The guard plates 8 located on both sides of the heating box 3 can play a shielding role. The guard plates 8 located above the heating box 3 can make the rainwater flowing down from the power-free wind cap 2 move away from the heating box 3 during the falling process, thereby reducing the amount of the muddy water mixture formed by the rainwater and the dust on the power-free wind cap 2 from flowing onto the outer surface of the heating box 3. The guard plates 8 located below can reduce the amount of rainwater splashing onto the heating box 3 after colliding with the building, so that the surface of the heating box 3 can remain clean for a relatively long time.

[0019] Furthermore, the end part of the bolt 7 is located between the guard plate 8 and the baffle 6. The guard plate 8 can keep the end part of the bolt 7 in a relatively sealed state, thereby preventing the end part of the bolt 7 from being severely corroded and affecting subsequent disassembly and maintenance.

[0020] When the device is in use, the air passing through the heating part is heated by sunlight. By utilizing the characteristic that hot air rises, the exhaust and heat dissipation effect of the power-free wind cap 2 can be increased, and the use effect is good.

[0021] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

Claims

1. A heat dissipation device for a building, characterized in that: It includes a heating part fixed to the upper end of the building exhaust duct, the upper end of the heating part is provided with a non-powered wind hood, the heating part includes a heating box, the heating box is in a mouth shape, the outer side of the heating box is provided with a heat-absorbing coating, a plurality of connecting pipes are arranged at intervals at the upper end of the heating box, the connecting pipes are connected with the heating box, the cross section of the connecting pipes is arranged in a V shape, and a heat-conducting solution is stored inside the heating box and the connecting pipes.

2. The heat dissipation device for building according to claim 1, characterized in that: A heat preservation plate is arranged at the side of the heating box which is not exposed to light for a long time.

3. The heat dissipation device for building according to claim 1, characterized in that: The upper and lower ends of the heating box are respectively provided with enclosures, and the enclosures of the heating box are connected to the unpowered wind hood and the exhaust channel by bolts.

4. The heat dissipation device for building according to claim 3, characterized in that: The outer surfaces of the two enclosures are respectively provided with guard plates.

5. The heat dissipation device for building according to claim 4, characterized in that: The end of the bolt is located between the guard plate and the enclosure plate.

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