Solar energy assisted natural ventilation device

Abstract

The utility model discloses a kind of solar energy auxiliary natural ventilation devices, including wall, glass wall, air valve, air outlet, air inlet and heat insulation wall, the air passage is formed between the glass wall and the heat insulation wall, one side of the heat insulation wall is fixedly installed with a pair of heat collection plate, the sidewall of the heat collection plate is fixedly installed with several equidistantly arranged guide plates. By setting the heat collection plate of inclined installation on the side of heat insulation wall, heated air is guided to flow upwards along the surface of heat collection plate, and several wave-shaped guide plates are arranged on the surface of heat collection plate, which can effectively prolong the time of air passing through the heat collection plate without affecting the heat absorption of heat collection plate, allowing air and heat collection plate to fully exchange heat, enhancing the air convection effect in the air passage and improving the ventilation and heat dissipation capacity of the entire system.

Description

Technical Field

[0001] This utility model relates to the field of solar chimneys, specifically a solar-assisted natural ventilation device. Background Technology

[0002] In the current construction and industrial sectors, natural ventilation is crucial for regulating indoor environments, maintaining fresh air, and reducing energy consumption. Traditional natural ventilation methods rely heavily on openings and layouts in the building structure itself, and their effectiveness is greatly affected by outdoor weather conditions such as wind direction and speed, making it difficult to consistently and efficiently meet indoor ventilation needs.

[0003] With the deepening of the concept of energy conservation and emission reduction, technologies utilizing solar energy to assist natural ventilation have emerged. For example, Chinese patent application CN202323509395.1 discloses a passive thermal storage type solar heating chimney. Its features include a wall, an insulation layer, a phase change thermal storage layer, a solar absorber panel, an airflow channel, a glass cover, an air inlet, and an air outlet. The insulation layer is located on the left side of the wall, the phase change thermal storage layer is between the insulation layer and the solar absorber panel, the airflow channel is between the solar absorber panel and the glass cover, and the air inlet and outlet are located at the lower and upper parts of the passive thermal storage type solar chimney ventilation system, respectively, and are connected to the building interior.

[0004] In the aforementioned document, the solar heat absorber is installed vertically. When air flows over its surface, the flow path is relatively smooth and the residence time is short, resulting in insufficient heat exchange with the solar heat absorber and making it difficult to effectively enhance air convection. Utility Model Content

[0005] The purpose of this utility model is to provide a solar-assisted natural ventilation device to solve the problem mentioned in the background art that existing solar chimneys are inconvenient to fully utilize the advantages of solar chimneys.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a solar-assisted natural ventilation device, comprising a wall, a glass wall, a damper, an air outlet, an air inlet, and a heat insulation wall. An air channel is formed between the glass wall and the heat insulation wall. A pair of heat collection plates are fixedly installed on one side of the heat insulation wall, and several equidistant guide plates are fixedly installed on the side wall of the heat collection plates.

[0007] Preferably, the air outlet and the air inlet are located at the upper and lower parts of the insulation wall, respectively, and are connected to the interior of the building.

[0008] Preferably, a pair of heat collection plates are installed at an angle opposite to each other via a bracket.

[0009] Preferably, a frame is fixedly installed on the side wall of the heat collection plate, and a plurality of equally spaced mounting ears are provided on the inner walls of both sides of the frame. The two ends of the guide plate are fixedly installed on the mounting ears by bolts.

[0010] Preferably, the main body of the guide plate has a wave-shaped structure.

[0011] Preferably, the support is connected to the heat insulation wall at its central position via a diagonal brace.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses a tilted heat collection plate installed on one side of an insulation wall to guide the heated air upward along the surface of the heat collection plate. Several wave-shaped guide plates are also installed on the surface of the heat collection plate. This effectively prolongs the time the air spends on the heat collection plate without affecting its heat absorption, allowing the air to fully exchange heat with the heat collection plate, enhancing the air convection effect in the air channel, and improving the ventilation and heat dissipation capacity of the entire system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the heat collection plate of this utility model.

[0016] In the diagram: 1. Wall; 2. Glass wall; 3. Air valve; 4. Air outlet; 5. Air inlet; 6. Insulation wall; 7. Heat collector plate; 8. Deflector plate; 9. Frame. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1This utility model provides a technical solution: a solar-assisted natural ventilation device, including a wall 1, a glass wall 2, an air valve 3, an air outlet 4, an air inlet 5, and a heat insulation wall 6. An air channel is formed between the glass wall 2 and the heat insulation wall 6. The air outlet 4 and the air inlet 5 are located at the upper and lower parts of the heat insulation wall 6, respectively, and are connected to the interior of the building. A pair of heat collection plates 7 are fixedly installed on one side of the heat insulation wall 6. The heated surface of the 7 raises the air temperature in the air channel. The hot air rises due to its lower density, forming natural convection. The hot air enters the room through the upper part 4 of the 6, providing heat to the room. The cold air in the room enters the air channel through the lower part 5, forming a circulation and achieving heating of the indoor air. The pair of heat collection plates 7 are installed at an angle opposite each other by a bracket. The advantage of this arrangement is that the top heat collection plate 7 is installed at an angle, making the plate surface closer to perpendicular to the sunlight, maximizing the reception of solar radiation. The bottom heat collection plate 7 can collect and reuse the light refracted from the ground, thereby increasing the heat absorption path of the heat collection plate. The support frame is connected to the insulation wall 6 at its central position via diagonal bracing. This diagonal bracing effectively transfers and disperses the lateral forces acting on the support frame onto the insulation wall 6, enabling the overall structure to better resist lateral deformation and maintain stability. The inclined angle of the heat collector plate 7 helps guide the heated air to flow upwards along its surface. The hot air rises naturally under buoyancy, and the inclined surface provides a smooth upward channel, reducing airflow resistance and allowing the hot air to quickly enter the chimney and be discharged upwards.

[0019] Please see Figure 2 Several equidistant guide plates 8 are fixedly installed on the side wall of the collector plate 7. Notably, the guide plates 8 are made of materials with good thermal conductivity and high solar radiation absorption rate. These materials are similar to the collector plate itself in absorbing solar heat energy, and the installation of the guide plates 8 will not reduce the solar energy absorption of the collector plate 7. A frame 9 is fixedly installed on the side wall of the collector plate 7. Several equidistant mounting ears are provided on the inner walls of both sides of the frame 9. The two ends of the guide plates 8 are fixed to the mounting ears with bolts. The main body of the guide plates 8 has a wave-shaped structure, which prevents large-area shading of sunlight when the guide plates 8 cover part of the surface of the collector plate 7. Sunlight can still reach the collector plate through the gaps between the troughs, thus ensuring that the collector plate can fully absorb solar energy. The wave-shaped guide plates 8 make the air flow path on the surface of the collector plate 7 tortuous. After the guide plates 8 are installed, the air needs to flow up and down along the wave shape, thereby increasing the flow distance and time of the air on the surface of the collector plate 7.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solar-assisted natural ventilation device, characterized in that: It includes a wall (1), a glass wall (2), a damper (3), an air outlet (4), an air inlet (5), and a heat insulation wall (6). An air channel is formed between the glass wall (2) and the heat insulation wall (6). A pair of heat collection plates (7) are fixedly installed on one side of the heat insulation wall (6), and several equidistant guide plates (8) are fixedly installed on the side wall of the heat collection plate (7).

2. A solar energy assisted natural ventilation device according to claim 1, characterized in that: The air outlet (4) and the air inlet (5) are located at the upper and lower parts of the heat insulation wall (6) respectively, and are connected to the interior of the building.

3. A solar energy assisted natural ventilation device according to claim 1, characterized in that: A pair of heat collection plates (7) are installed at an angle opposite each other via a bracket.

4. A solar energy assisted natural ventilation device according to claim 1, characterized in that: The heat collection plate (7) is fixedly installed with a frame (9) on its side wall. The inner walls of both sides of the frame (9) are provided with a number of equally spaced mounting ears. The two ends of the guide plate (8) are fixedly installed on the mounting ears by bolts.

5. A solar energy assisted natural ventilation device according to claim 1, characterized in that: The main body of the guide plate (8) is a wave-shaped structure.

6. A solar energy assisted natural ventilation device according to claim 3, characterized in that: The bracket is connected to the heat insulation wall (6) at its central position via a diagonal brace.

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