CN204728794U - The building of solar energy and wind energy secondary ventilation is utilized to pull out wind tower - Google Patents

Abstract

The utility model relates to a building ventilation tower which utilizes solar energy and wind energy to assist ventilation. Including the tower body, the tower body is set on the top surface of the building, the interior of the tower body is hollow, the tower body is composed of walls and supporting structures, and surrounded by walls and structural supports, a vertical indoor and outdoor air passage is formed; the air The top of the channel is provided with a structural roof, and holes are opened on all sides of the upper part of the air channel to communicate with the outdoor atmosphere. Downward rain-proof venetian curtains are installed on the four sides of the holes; The light panel is provided with a heat storage structure on the inner side of the other three walls horizontally opposite to the light-transmitting panel to form a solar ventilation circuit; a ventilation channel driven by solar energy and wind energy is formed through the wind energy ventilation circuit and the solar ventilation circuit. The utility model realizes passive ventilation by utilizing both solar energy and wind energy, and satisfies the ventilation requirements under different weather conditions to a large extent.

Description

Wind towers for buildings that use solar and wind energy to assist ventilation

technical field

The utility model relates to a building ventilation tower which utilizes solar energy and wind energy to assist ventilation. It belongs to the technical field of building construction.

Background technique

At present, in order to meet the needs of architectural modeling, many buildings are built with tower-like structures. However, such tower-like structures often have no other functional functions and only have decorative functions. Therefore, under the condition that the tower-like structure has a height difference, whether it can be adjusted reasonably technically to make the tower-like structure a decorative and functional architectural drafting tower, such as auxiliary natural ventilation functions and other technologies Will be a technical development issue for architectural design.

In the prior art, general building wind towers use natural ventilation under the action of thermal pressure. Different from wind towers that only use indoor heat, individual wind towers can use the radiant heat of the sun to enhance the ventilation effect. , For example, "an improved solar chimney system" of the invention patent application publication number CN103134060A, although the auxiliary ventilation effect of solar energy is considered, the invention does not consider the effect of wind pressure on the wind, when the weather is cloudy and rainy, and the solar radiation is insufficient , the energy of solar radiant heat is not enough to drive the normal circulation of the air duct, which greatly weakens the wind pulling effect of the building wind tower, and even is unfavorable to the wind direction. wind.

Utility model content

The purpose of this utility model is to solve the problem that the existing building wind towers cannot use solar energy and wind energy for auxiliary ventilation, and provide a building wind tower that utilizes solar energy and wind energy to assist ventilation. It has the ventilation effect of reasonable utilization of wind pressure and solar radiation, realizes passive ventilation with both solar energy and wind energy, and satisfies the ventilation needs under different weather conditions to a greater extent.

The purpose of this utility model can be realized through the following technical solutions:

A wind tower for buildings using solar energy and wind energy to assist ventilation, including a tower body, the tower body is set on the top surface of the building, the interior of the tower body is hollow, the tower body is composed of walls and supporting structures, surrounded by walls and structural supports down, forming a vertical air channel; directly below the air channel is connected with the building stairwell, forming an indoor and outdoor ventilation path; the top of the air channel is provided with a structural roof, and holes are opened on all four sides of the upper part of the air channel to communicate In the outdoor atmosphere, down-tilt rain-proof venetian curtains are installed at the openings on all sides to form a wind energy ventilation circuit; on the south wall of the tower body, a light-transmitting plate is partially installed to allow the sun’s rays to shine through the light-transmitting plate. Into the inner cavity of the air channel of the wind tower, a heat storage structure is arranged on the inner side of the other three walls opposite to the transparent plate horizontally to form a solar ventilation circuit; a ventilation channel driven by solar and wind energy is formed through the wind energy ventilation circuit and the solar ventilation circuit.

The purpose of this utility model can be realized through the following technical solutions:

Further, a concave plate is installed on the bottom surface of the structural top plate at the top of the air channel; the concave plate protrudes toward the air channel, so that the central vertical cross-sectional area of the air channel is minimized.

Further, the heat storage structure is composed of a heat-absorbing coating arranged on the inner wall of the tower body, and the heat-absorbing coating is composed of a dark-colored heat-absorbing paint with a solar radiation absorption rate greater than or equal to 0.75.

Furthermore, the surface of the heat storage structure in contact with the wall and structural support is provided with 10mm thick glass wool insulation material to prevent heat loss.

Further, the heat storage structure includes a heat-absorbing layer and a heat-insulating material layer, the heat-absorbing layer is composed of a dark heat-absorbing paint layer applied to the inner wall of the tower body, and the heat-insulating material layer is composed of a glass wool heat-insulating material layer; the heat-insulating material layer It is located at the connection between the inner wall of the tower body wall and the heat absorbing layer.

Further, the solar radiation absorption rate of the heat absorbing layer is greater than or equal to 0.75, the thickness of the insulation material layer is greater than or equal to 10mm, and the overall heat storage coefficient of the heat storage structure is 7W/m ² ·K.

Further, the bottom surface of the concave plate is arc-shaped or cone-shaped, and the surface is smooth and streamlined or approximately streamlined, so that the vertical cross-sectional area of the central position of the ventilation channel is the smallest, and the vertical cross-sectional area outside the center gradually increases. The largest direct sectional area.

Further, the venetian blind is inclined outward and placed horizontally with the concave plate at a knuckle angle, so that the convex smooth surface under the concave plate and the venetian blind form a knuckle-angle ventilation mechanism for guiding wind and exchanging air.

Further, the venetian blind is installed at an angle of 65-110° to the raised smooth surface under the concave plate.

Further, the light-transmitting plate is made of partially tempered glass installed on the tower body.

The utility model has the following outstanding beneficial effects:

1. The utility model forms a wind energy ventilation circuit by installing down-tilt rain-proof venetian curtains at the openings on four sides; on the south wall of the tower body, a light-transmitting panel is partially installed to allow the sun's rays to pass through. The light panel shines into the inner cavity of the air channel of the wind-drawing tower, and heat storage structures are arranged on the inner sides of the other three walls opposite to the light-transmitting panel horizontally to form a solar ventilation circuit; through the wind energy ventilation circuit and the solar ventilation circuit, a solar and wind energy-driven environment is formed. Ventilation channels; therefore, it has the ventilation effect of rationally utilizing wind pressure and solar radiation, and realizes passive ventilation by taking into account the use of solar energy and wind energy, and satisfies the ventilation needs under different weather conditions to a greater extent.

2. The utility model arranges a convex plate with a smooth surface facing down at the top of the air duct, and ventilating openings with louvers are arranged around the air duct below the convex plate. The lighted surface is placed horizontally at a knuckle, so that the convex plate and the louvers form a ventilation device with a knuckle to guide the wind and ventilate; therefore, when the natural wind flows, the wind can be guided by the louvers to the convex plate, and then dispersed and guided by the convex plate In the channel, at the same time, due to the angle design between the convex plate and the louvers, when the air volume is large, the raised smooth surface of the convex cover plate can form a wind resistance performance, and a part of the wind will be turned back to flow out through the vents of the louvers to prevent excessive wind flow Into the ventilation channel, avoiding the phenomenon of air filling into the room, thus, the natural wind introduction function of the utility model has a better effect, and the structure is also very simple.

3. The utility model is provided with a heat storage structure on the inner wall of the air passage, and a light-transmitting plate for light transmission is provided on the side wall of the air passage on the heat storage structure. The heat storage structure is absorbed by solar radiation. The insulation material layer filled between the heat layer and the heat absorbing layer and the ventilation channel is composed, thus, it has a better heat storage function, and can effectively store heat to maintain the temperature in the ventilation channel in cloudy, rainy or night environments. Make the natural wind more natural and comfortable when blowing in, and the effect is better.

4. The utility model can be transformed by using the tower-shaped structures commonly existing in the current architectural design. By considering the utilization of solar energy and wind energy, it can meet the ventilation requirements under different weather conditions, improve the natural ventilation efficiency of the building, and the production cost is low. .

Description of drawings

Fig. 1 is a schematic structural view of a specific embodiment 1 of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Specific embodiment 1

As shown in Figure 1, the wind-extracting tower of a building that uses solar energy and wind energy to assist ventilation includes a tower body 1, the tower body 1 is arranged on the top surface of the building, the interior of the tower body 1 is hollow, and the tower body 1 is composed of a wall and a supporting structure , surrounded by walls and structural supports, a vertical air channel is formed; directly below the air channel is connected with the building stairwell, forming an indoor and outdoor ventilation channel; the top of the air channel is provided with a structural roof, in the air The upper part of the channel has holes 6 on all sides to communicate with the outdoor atmosphere. Downward rain-proof venetian curtains 5 are respectively installed at the 6 holes on all sides to form a wind energy ventilation circuit; The light plate 3 allows sunlight to pass through the light-transmitting plate 3 and shines into the air channel inner cavity of the wind-drawing tower, and the heat storage structure 2 is arranged on the inner side of the other three walls opposite to the light-transmitting plate 3 to form a solar ventilation circuit; Wind energy ventilation loops and solar ventilation loops form ventilation channels powered by solar and wind energy.

In the embodiment, the vertical air channel formed directly below the tower body 1 communicates with the building stairwell, thereby forming an indoor and outdoor air ventilation channel. The bottom surface of the structural top plate at the top of the air channel is equipped with a concave plate 4; the concave plate 4 protrudes toward the air channel, so that the vertical cross-sectional area of the central position of the air channel is the smallest.

The heat storage structure 2 is composed of a heat-absorbing coating arranged on the inner wall of the tower body 1, and the heat-absorbing coating is composed of a dark heat-absorbing paint with a solar radiation absorption rate greater than or equal to 0.75. The heat storage structure 2 is provided with 10mm thick glass wool insulation material on the surface in contact with the wall and structural support to prevent heat loss. The heat storage structure 2 includes a heat-absorbing layer 21 and a heat-insulating material layer 22. The heat-absorbing layer 21 is composed of a dark heat-absorbing paint layer applied on the inner wall of the tower body 1, and the heat-insulating material layer 22 is made of glass wool heat-insulating material. The heat-insulating material layer is located at the connection between the inner wall of the tower body 1 wall and the heat-absorbing layer. The solar radiation absorption rate of the heat absorbing layer is greater than or equal to 0.75, the thickness of the thermal insulation material layer is greater than or equal to 10mm, and the overall heat storage coefficient of the heat storage structure is 7W/m ² ·K.

The bottom surface of the concave plate 4 is arc-shaped, and the surface is smooth and streamlined or approximately streamlined, so that the vertical cross-sectional area of the central position of the ventilation channel is the smallest, the vertical cross-sectional area outside the center gradually increases, and the vertical cross-sectional area at the edge is The largest area.

The venetian blind 5 is installed at an angle of 65-110° with the raised smooth surface under the concave plate 4, that is, the venetian blind 5 and the raised smooth surface under the concave plate 4 are at 65°, 70°, 75°, 80° , 85 °, 90 °, 95 °, 100 °, 105 ° or 110 ° angle installation, the venetian blinds 5 are tilted outwards and placed horizontally with the concave plate 4 at a knuckle angle, so that the convex smooth surface under the concave plate 4 and the blinds Curtain 5 forms the ventilation mechanism of knuckle wind guide and ventilation.

The light-transmitting plate 3 is selected from one side of the wall of the ventilation channel according to the solar radiation situation and actual use requirements, usually the south side is selected, and one or more light-transmitting plates are partially installed on this surface, and the light-transmitting plate 3 is The light-transmitting tempered glass allows sunlight to shine through the light-transmitting plate 3 into the inner cavity of the air channel of the tower, and the inner sides of the other walls opposite to the light-transmitting plate 3 are installed with heat storage structures 2 .

The heat storage structure 2 is installed on the inner side of the side wall of the air duct. Specifically, the heat storage structure 2 is installed on the inner cavity of the other three walls on the side wall of the air duct opposite to the light-transmitting plate 3 . The heat structure 2 is composed of a solar radiation heat absorbing layer 21 and an insulating material layer 22 filled between the heat absorbing layer 21 and the air duct. The surface of the heat absorbing layer 21 is coated with a dark heat absorbing paint layer with a solar radiation absorption rate greater than 0.75; the insulating material layer 22 is a glass wool insulating material with a thickness of 10 mm. To prevent heat loss, the overall heat storage coefficient of the heat storage structure 2 is ≥5W/m ² ·K, preferably 7W/m ² ·K.

When the utility model solar energy and wind energy assisted ventilation tower works:

When the solar radiation is strong, the solar radiation shines on the heat storage structure 2 through the light-transmitting plate 3, and the dark heat-absorbing paint on the surface of the heat-absorbing layer 21 of the heat-storage structure 2 has a strong ability to absorb heat from the solar radiation and absorbs heat. The layer 21 is filled with an insulating material layer 22 , the insulating material is insulating foam, so that the heat of solar radiation is effectively stored in the insulating material layer 22 of the heat storage structure 2 . The thermal insulation material of the heat storage structure 2 effectively prevents unnecessary loss of heat, ensuring that the heat storage structure 2 can maintain a relatively high temperature for a long time. Due to the high temperature of the heat storage structure 2 in the wind tower at this time, there is a height difference between the air outlet connecting the wind tower to the outside and the air outlet connected to the indoor, so that the building can be effectively and naturally ventilated under the action of heat and pressure .

When there is wind outdoors, the wind can pass through the top of the wind pulling tower by the venetian blind 5 . Due to the effect of the convex plate 4 on the top, in the vertical direction, where the convex plate 4 has a large section and the air channel section is small, the wind speed will be greater than that of the position where the air channel section is large. According to the Bernoulli's principle in fluid mechanics, the pressure of the above position with high wind speed will become smaller, thereby forming a local negative pressure, and then the indoor air will flow to the outside through the venetian blind 5 of the wind pulling tower.

Specific embodiment 2:

The technical feature of this embodiment is that the bottom surface of the concave plate 4 is conical, the light-transmitting plate 3 is arranged on the south side of the air duct, and the light-transmitting plate 3 is installed on the wall covering the entire side of the air duct. , that is, the light-transmitting plate 3 covers the entire south side wall of the ventilation duct, so that the entire south side forms a light-transmitting wall. The heat storage structure 2 is installed on other corresponding side walls, and the rest are the same as the above embodiment.

The above descriptions are only preferred embodiments of the utility model, and the scope of protection of the utility model is not limited thereto. Any equivalent conversion based on the technical solution of the utility model falls within the scope of protection of the utility model.

Claims (10)

1. The wind pulling tower of a building utilizing solar energy and wind energy for auxiliary ventilation comprises a tower body (1), and the tower body (1) is arranged on the top surface of a building, and the interior of the tower body (1) is hollow, and is characterized in that: the tower body ( 1) It is composed of a wall and a supporting structure, and is surrounded by a wall and a structural support to form a vertical air channel; directly below the air channel is connected with the building stairwell, forming an indoor and outdoor ventilation path; the air The top of the channel is provided with a structural roof, and holes (6) are opened on all sides of the upper part of the air channel to communicate with the outdoor atmosphere. Downward rainproof venetian curtains (5) are installed on the four sides of the holes (6) to form a wind energy ventilation circuit ; On the south wall of the tower body (1), a light-transmitting plate (3) is partially installed, so that sunlight can pass through the light-transmitting plate (3) and shine into the air channel inner cavity of the wind-drawing tower. (3) A thermal storage structure (2) is arranged on the inside of the other three horizontally opposite walls to form a solar ventilation circuit; a ventilation channel driven by solar energy and wind energy is formed through the wind energy ventilation circuit and the solar ventilation circuit. 2. The building wind drawing tower utilizing solar energy and wind energy auxiliary ventilation according to claim 1, is characterized in that: the bottom surface of the structural top plate at the top of the air channel is equipped with a concave plate (4); the concave plate (4) faces the air channel Protrude to minimize the vertical cross-sectional area of the central position of the air channel. 3. The wind-extracting building tower utilizing solar energy and wind energy for auxiliary ventilation according to claim 1 or 2, characterized in that: the heat storage structure (2) is formed by a heat-absorbing coating arranged on the wall inner wall of the tower body (1) The heat-absorbing coating is composed of a dark-colored heat-absorbing paint with a solar radiation absorptivity greater than or equal to 0.75. 4. The building ventilation tower utilizing solar energy and wind energy for auxiliary ventilation according to claim 1 or 2, characterized in that: the heat storage structure (2) is provided with 10mm thick glass wool insulation on the surface in contact with the wall and structural support material to prevent heat loss. 5. The wind-drawing tower for buildings utilizing solar energy and wind energy for auxiliary ventilation according to claim 4, characterized in that: the thermal storage structure (2) comprises a heat-absorbing layer (21) and a thermal insulation layer (22), and the heat-absorbing layer (21 ) is composed of a dark heat-absorbing paint layer applied on the inner wall of the tower body (1), and the insulation layer (22) is made of a glass wool insulation material layer; the insulation layer is located between the inner wall of the tower body (1) and the heat-absorbing layer connections. 6. The wind-drawing tower for a building using solar energy and wind energy to assist ventilation according to claim 5, characterized in that: the solar radiation absorption rate of the heat-absorbing layer is greater than or equal to 0.75, the thickness of the insulation layer is greater than or equal to 10mm, and the heat storage The overall thermal storage coefficient of the construction is 7 W/m ² ·K. 7. The building ventilation tower utilizing solar energy and wind energy for auxiliary ventilation according to claim 2, characterized in that: the bottom surface of the concave plate (4) is arc-shaped or cone-shaped, and the surface is smooth and streamlined or approximately streamlined, so that the ventilation channel The vertical cross-sectional area at the center is the smallest, the vertical cross-sectional area outside the center gradually increases, and the vertical cross-sectional area at the edge is the largest. 8. The building ventilation tower utilizing solar energy and wind energy for auxiliary ventilation according to claim 2, characterized in that: the venetian blind (5) is placed horizontally with the concave plate (4) in a knuckle angle, so that the concave plate ( 4) The lower raised smooth surface and the venetian blind (5) form a ventilation mechanism with knuckles for guiding wind and taking a breath. 9. The building ventilation tower utilizing solar energy and wind energy for auxiliary ventilation according to claim 8, characterized in that: the venetian blind (5) and the convex light surface under the concave plate (4) are at an angle of 65-110° angled installation. 10. The building ventilation tower using solar energy and wind energy for auxiliary ventilation according to claim 1 or 2, characterized in that: the light-transmitting plate (3) is made of partially tempered glass installed on the tower body (1).