CN211735893U - Double-row blind piece heat collection wall device - Google Patents

Abstract

The utility model discloses a heat-collecting wall device for double-row venetian blinds, which comprises light-transmitting glass, a heat-storage wall, and two rows of venetian-blinds inside and outside, which are arranged between the air interlayers formed by the light-transmitting glass and the heat-storage wall; The top of the air interlayer is provided with one or more electric heating plates; the phase change material is placed in the air interlayer; the inner and outer rows of venetian blinds are respectively fixed on the first shaft and the second shaft through a rotating shaft, the first shaft and the second shaft are respectively fixed on the first shaft and the second shaft. Both ends of the shaft are fixed on the roof and the floor respectively; each outer row of venetian blinds is covered with solar panels on the front and heat reflective panels on the back; each inner row of venetian blinds is covered with light reflective panels on the front and solar panels on the back; Both the first solar cell panel and the second solar cell panel are connected to the electric heating plate through wires. The utility model can effectively avoid high indoor temperature in summer and low indoor temperature in winter, improve photoelectric conversion efficiency, reduce energy conversion loss and provide people with a comfortable living environment.

Description

A double-row venetian blind heat-collecting wall device

technical field

The utility model belongs to the technical field of green buildings, in particular to a heat collecting wall device for double-row venetian blinds.

Background technique

The heat collection wall, also known as the Trombe wall, the English name is Trombe wall, is the most typical construction of the heat collection-heat storage wall passive solar house. The heat collection wall uses sunlight to illuminate the heat storage wall with a glass cover outside, heats the interlayer air between the transparent cover and the outer surface of the thick wall, and makes the air flow into the room through hot pressing to supply heat to the room, while the wall is heated. It directly releases heat into the room through heat conduction and stores part of the energy, and the energy stored by the wall at night is released into the room. On the other hand, the heat collection wall loses heat to the outdoors through conduction, convection and radiation through glass covers and the like. The collector wall type solar room is very suitable for areas in northern my country with abundant solar energy resources and large temperature difference between day and night, such as Tibet, Xinjiang, etc. It will greatly improve people's living environment and reduce heating energy consumption.

The heat collection wall has better heating effect in winter in areas with cold winter and hot summer, such as Xinjiang, but it will cause the indoor temperature to be too high in summer. How to avoid the heat collection wall to make the room overheat in summer has attracted more and more attention.

For photovoltaic power generation technology, if photovoltaic cells are simply used to generate electricity, their photoelectric conversion rate can only reach 10% to 15%, and the remaining more than 80% of the energy is converted into heat energy, dissipated to the surrounding environment, and the battery temperature rises. Power generation efficiency is reduced. In the photovoltaic and photothermal heating wall technologies on the market, the photovoltaic panels are placed outdoors, which is not conducive to the utilization of light and heat by the system. Especially in winter in cold regions, the outdoor temperature is too low, and the heat loss of the system is serious.

Utility model content

The purpose of the utility model is to provide a double-row venetian blind heat-collecting wall device, which can effectively solve the problems of high indoor temperature in summer, low indoor temperature in winter, and energy loss.

The utility model provides a double-row venetian shutter heat-collecting wall device, which comprises light-transmitting glass and a heat-storing wall, and two rows of venetian-blinds inside and outside that are arranged between the air interlayers formed by the light-transmitting glass and the heat-storing wall; The light-transmitting glass faces the south, and the heat storage wall is located on the north side of the light-transmitting glass;

The upper and lower ends of the transparent glass are provided with ventilation openings, and the upper and lower ventilation openings are respectively provided with corresponding openable and closable outer upper baffles and outer lower baffles;

The lower ends of the heat storage wall are provided with ventilation openings, and the upper and lower ventilation openings are respectively provided with corresponding openable and closable inner upper baffles and inner lower baffles;

The top of the air interlayer is provided with one or more electric heating plates;

A phase-change material with a phase-change temperature of 25-35 degrees is placed in the air interlayer;

The front side of each outer row of venetian blinds is covered with a solar panel, namely the first solar panel, and the reverse side is covered with a heat reflector;

Each inner row of venetian blinds is covered with a light reflector on the front, and a solar panel on the reverse, that is, the second solar panel;

Both the first solar cell panel and the second solar cell panel are connected with the electric heating plate through wires;

The inner and outer two rows of venetian blinds are respectively controlled to rotate by a first pull rope and a second pull rope, and one end of the first pull rope and the second pull rope both extend deep into the room.

Further, the inner venetian blinds are installed at an inclination of 25-45 degrees behind the outer venetian blinds, that is, the angle of the connecting line between the projection points of the second axis and the first axis on the floor relative to the north-south direction is 30 degrees. .

Further, one or more electric heating plates are arranged at the top between the transparent glass and the first row of venetian blinds; when there are multiple electric heating plates, the plurality of electric heating plates are arranged in the east-west direction.

Further, the phase change material is arranged at the bottom of the air interlayer formed by the outer venetian blinds and the inner venetian blinds, and is arranged along the east-west direction.

Further, when the front and back sides of each venetian blind are connected, an air channel is left in the middle.

The use method of the above-mentioned double-row venetian blind heat collecting wall device provided by the utility model is suitable for winter daytime, closing the outer upper baffle and the outer lower baffle, opening the inner upper baffle and the inner lower baffle, and passing the The first pulling rope and the second pulling rope control the outer venetian blinds and the inner venetian blinds, so that the first solar panel on the outer venetian blinds and the second solar panel on the inner venetian blinds are inclined to face the light-transmitting glass.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The utility model can effectively avoid high indoor temperature in summer and low indoor temperature in winter, improve photoelectric conversion efficiency, reduce energy conversion loss and provide people with a comfortable living environment.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the double-row venetian blind heat collecting wall device in Example 1;

Fig. 2 is the overall schematic diagram of embodiment 1 Chinese and foreign venetian blinds;

Fig. 3 is the overall schematic diagram of the inner venetian blind in Example 1;

4 is an enlarged schematic view of the air interlayer between two rows of venetian blinds in Example 1;

5 is a schematic diagram of the relative positions of the outer venetian blinds and the inner venetian blinds in Example 1;

Fig. 6 is the structural representation of embodiment 1 Chinese and foreign venetian blinds;

Fig. 7 is the structural representation of the inner venetian blind in Example 1;

8 is a schematic diagram of the connection of the first solar cell panel, the heat reflection plate and the outer venetian blinds in Example 1;

Fig. 9 is the control schematic diagram of the first pulling rope and the first rotating shaft in Embodiment 1;

Fig. 10 is the working schematic diagram of the heat collecting wall device in embodiment 2 during the daytime in winter;

Fig. 11 is the working schematic diagram of the heat collecting wall device in embodiment 2 at night in winter;

Fig. 12 is the working schematic diagram of the heat collecting wall device in embodiment 2 during the daytime in summer;

13 is a schematic diagram of the operation of the heat collecting wall device in Example 2 at night in summer.

In the picture:

100-translucent glass, 101-outer upper baffle, 102-outer lower baffle;

200-outer venetian blinds, 201-first shaft, 202-first solar panel, 203-heat reflector, 204-first rotating shaft, 205-first pull rope,

300-Inner Venetian Blind, 301-Second Shaft, 302-Light Reflector, 303-Second Solar Panel, 304-Second Rotating Shaft, 305-Second Pull Rope,

400- heat storage wall, 401- inner upper baffle, 402- inner lower baffle;

500-electric heating plate;

600-phase change material;

701 - the first wire, 702 - the second wire.

Detailed ways

In order to illustrate the technical solutions and technical effects of the present invention more clearly, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts, and obtain other implementations.

It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

The embodiments of the present utility model are described in detail below. The present embodiment is implemented on the premise of the technical solution of the present utility model, and provides detailed implementation methods and specific operation processes, but the protection scope of the present utility model is not limited to the following described embodiment.

Example 1

As shown in Figures 1 to 4, the double-row venetian shutter heat-collecting wall device in this embodiment is composed of light-transmitting glass 100, outer venetian blinds 200, inner venetian blinds 300, and heat storage wall 400 in order from outside to inside. The shutter 200 is fixed on the first shaft 201, the inner shutter 300 is fixed on the second shaft 301, and both ends of the first shaft 201 and the second shaft 301 are respectively fixed on the roof and the floor. In this embodiment, the first shaft 201 and the second shaft 301 are both hollow shafts. Preferably, the inner venetian blinds 300 are installed behind the outer venetian blinds 200 at an inclination of 30 degrees, that is, the angle of the line connecting the projection points of the second axis 301 and the first axis 201 on the floor relative to the north-south direction is 30 degrees. 5 shown.

In specific application, the heat collecting wall device should be located in the north facing south, that is, the transparent glass 100 faces the south, and the heat storage wall 400 is located on the north side of the transparent glass 100 . In the present invention, an air interlayer is formed between the light-transmitting glass 100 and the heat storage wall 400, two rows of louver sheets are arranged in the air interlayer, and an electric heating plate 500 is arranged at the top of the air interlayer. The north-south direction is arranged between the transparent glass 100 and the outer venetian blinds 200, and the phase change material 600 is placed along the east-west direction between the two rows of blinds. In this embodiment, the electric heating plate 500 adopts a mica electric heating plate, the phase change material 600 adopts Na(CH ₃ COO)·3H ₂ O or tetradecanol-fatty acid phase change material, and the phase change temperature is 29 degrees. The quantity of the electric heating plate 500 and the phase change material 600 is determined according to the cold degree of the region, and the colder it is, the greater the quantity should be.

In this embodiment, the light-transmitting glass 100 is high-purity silica glass, which has good light-transmitting performance in the entire spectral range from ultraviolet to infrared, and the visible light transmittance is over 95%, especially in the ultraviolet spectral region. , the maximum transmittance can reach more than 85%. Use warm edge Swiggle tape as a sealing edge for insulating glass sealing windows.

Referring to FIGS. 6-7 , the front side of each outer venetian blind 200 is covered with a solar cell panel, which is denoted as the first solar cell panel 202; In this embodiment, the outer venetian blinds 200 are made of aluminum alloy, the first solar cell panel 202 is a monocrystalline silicon solar cell panel, and the heat reflector is made of ZnO-Fe ₂ O ₃ -Na ₂ OP ₂ O ₅ composite material. Drill screw holes on the outer venetian blinds 200, and then fix the first solar cell panel 202 and the heat reflection plate 203 on the outer venetian blinds 200 by screwing. 200 is made into a rectangular plate shape.

Each inner venetian blind 300 is covered with a light reflection plate 302 on the front, and a solar cell panel on the reverse side, which is denoted as the second solar cell panel 303. In this embodiment, the inner venetian blind 300 is made of aluminum alloy, and the second solar cell panel 303 Monocrystalline silicon solar panels are used, and TiO ₂ /PC composite material is used for the light reflection plate 302 . Refer to the outer venetian blinds 200 for the manner in which the light reflection plate 302 and the second solar cell panel 303 are fixed on the inner venetian blinds 300 .

Each of the first solar cell panels 202 is connected to a first wire 701 disposed in the first shaft 201 , and the output end of the first wire 701 is connected to the electric heating plate 500 for supplying power to the electric heating plate 500 . Each second solar cell panel 303 is connected to a second wire 702 disposed in the second shaft 301 , and the output end of the first wire 702 is also connected to the electric heating plate 500 for supplying power to the electric heating plate 500 .

Referring to FIG. 9 , the outer venetian blinds 200 are controlled by the first pulling rope 205 , the outer venetian blinds 200 are mounted on the first shaft 201 through the first rotating shaft 204 fixed on the first shaft 201 , and the first pulling rope 205 is connected The first rotating shaft 204 is controlled by the first pulling rope 205 so as to switch the front and back sides of the outer venetian blinds 200 . Similarly, the inner venetian shade 300 is controlled by the second pull cord 305 , the inner venetian shade 300 is mounted on the second shaft 301 through the second rotating shaft 304 fixed on the second shaft 301 , and the second pull rope 305 is connected to the second shaft 301 . Two rotating shafts 304, the second rotating shaft 304 is controlled by the second pulling rope 305, so as to switch the front and back of the inner venetian blind 300.

Preferably, when the front and back sides of the inner and outer venetian blinds are connected, an air channel is left in the middle, so that the solar panel on the front side can dissipate heat and improve the photoelectric conversion efficiency. Specifically, the inner and outer venetian blinds are hollow cuboid structures with two opposite side ends open, thereby forming air passages, as shown in Figures 6-7.

For the sake of appearance and neatness, the first pull cord 205 and the second pull cord 305 are also arranged in the first shaft 201 and the second shaft 301 respectively. For the convenience of use, parts of the first drawstring 205 and the second drawstring 305 extend into the room.

The light-transmitting glass 100 is located on the south side of the air interlayer, and is provided with an outer upper baffle 101 and an outer lower baffle 102 at the upper and lower sides. Lower baffle 402 .

Example 2

This embodiment will provide a method of using the double-row venetian blind heat-collecting wall device. During use, the outer upper baffle 101, the outer lower baffle 101, the outer lower baffle 101 and the outer lower baffle 101 are manually adjusted according to four working modes: winter day, winter night, summer day, and summer night. The switching mode of the baffle 102 , the inner upper baffle 401 , the inner lower baffle 402 , and the outer venetian blinds 200 and the inner venetian blinds 300 .

Referring to Figure 10, the arrows in the figure indicate the direction of air flow. In the winter and daytime working mode, close the outer upper baffle 101 and the outer lower baffle 102 on the transparent glass 100, open the inner upper baffle 401 and the inner lower baffle 402 on the thermal storage wall 400, and pull the first The cords 205 and the second pull cords 305 control the outer venetian blinds 200 and the inner venetian blinds 300 to make the first solar panel 202 on the outer venetian shade 200 and the second solar panel 303 on the inner venetian shade 300, respectively It faces the transparent glass 100 to absorb solar energy, thereby generating heat energy and electric energy, and the electric energy is transmitted to the electric heating plate 500 through the first wire 701 and the second wire 702 . Due to the good light transmission performance of the transparent glass 100 , the temperature in the air interlayer between the transparent glass 100 and the heat storage wall 400 will rise. When the temperature rises to the phase change temperature of the phase change material 600 , the phase change material 600 begins to generate Phase change, heat storage through phase change. At this time, due to the higher temperature in the air interlayer, the air density becomes smaller, while the indoor temperature is lower and the air density is higher. Based on the "chimney effect", the hot air in the air interlayer circulates into the room from the inner upper baffle 401, and the indoor cold air From the inner and lower baffles 402, it flows into the air interlayer to perform heat exchange.

Referring to FIG. 11 , in the winter night working mode, close all the baffles on the light-transmitting glass 100 and the heat storage wall 400 (ie, the outer upper baffle 101 , the outer lower baffle 102 , the inner upper baffle 401 , the inner and lower baffles 402), at this time, the air interlayer forms a sealed cavity. The first pulling rope 205 controls the rotation of the outer venetian blinds 200, so that the outer venetian blinds 200 are parallel to the heat storage wall 400, and the heat reflecting plate 203 faces the heat storage wall 400, which can reduce the transfer of the heat storage wall 400 to the air interlayer heat loss. In this working mode, there is no requirement for the posture of the inner venetian blind 300 . The heat stored in the air interlayer during the day passes through the heat storage wall 400 to heat the indoor air. When the temperature in the air interlayer drops to the phase change temperature of the phase change material 600, the phase change material 600 starts to release heat to maintain the temperature in the air interlayer. At the same time, heat is supplied to the thermal storage wall 400 .

Referring to Figure 12, the arrow in the figure is the direction of air flow. In the summer daytime working mode, close the outer lower baffle 102 on the transparent glass 100 and the inner upper baffle 401 on the heat storage wall 400, open the outer upper baffle 101 on the transparent glass 100, and store the heat Inner lower baffle 402 on wall 400. The front side of the outer venetian blinds 200 , that is, the first solar cell panel 202 is inclined to face the light-transmitting glass 100 to absorb solar energy to generate heat and electric energy, and the generated electric energy is transmitted to the electric heating plate 500 to generate heat. The front side of the inner venetian blind 300 , that is, the light reflection plate 302 is inclined to face the light-transmitting glass 100 to reflect the solar energy, reduce the heat obtained by the heat storage wall 400 and reduce the excessive heat energy being transmitted into the room. The temperature in the air interlayer gradually increases, and when the temperature rises to the phase change temperature of the phase change material 600 , the phase change material 600 begins to undergo a phase change and stores heat through the phase change.

During the daytime in summer, the air temperature in the south of the house is higher than the indoor temperature, but the indoor air temperature will be heated, making people feel uncomfortable. However, the indoor temperature is higher than the air temperature outside the house to the north. In summer and daytime, a large amount of heat will be rapidly generated in the air interlayer of the wall of the utility model, and the "chimney effect" will occur, and the indoor air will be continuously extracted. If the window on the north side of the house is opened at this time, the low temperature gas from the north side will quickly enter the room. In this way, the cold air from the north can be used to reduce the indoor air and make people feel comfortable.

Referring to FIG. 13 , in the summer night working mode, close the inner upper baffle 401 and the inner lower baffle 402 , open the outer upper baffle 101 and the outer lower baffle 102 , and control the movement of the outer venetian blinds through the first pull cord 205 . The heat reflection plate 203 is parallel and facing the transparent glass 100 . The second solar cell panel 303 controlling the inner venetian blind 300 is inclined to face the light-transmitting glass 100 . When the temperature in the air interlayer drops to the phase change temperature of the phase change material 600 , the phase change material 600 starts to exothermic the phase change. The heat accumulated by the heat collection wall during the day reaches the air interlayer at night and begins to dissipate it to the air interlayer. If the temperature in the air interlayer is higher than the outdoor, it will flow into the air between the outdoor and the air interlayer, taking away the heat of the heat collection wall and reducing the indoor heat load. If the outdoor temperature is higher than the temperature of the air interlayer and lower than the temperature of the heat storage wall, air will flow between the air interlayer and the outside, taking away the heat of the heat collecting wall and reducing the indoor heat load. If the outdoor temperature is higher than the air interlayer and also higher than the heat collection wall, the heat reflector can reduce the transfer of outdoor heat to the room at night until the balance is reached.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of the new protection.

Claims (5)

1. A double-row blind piece heat collection wall device is characterized in that a seat north of the device faces south:

comprises light-transmitting glass, a heat storage wall, and inner and outer rows of shutter sheets arranged between an air interlayer formed by the light-transmitting glass and the heat storage wall; the transparent glass faces the south, and the heat storage wall is positioned on the north side of the transparent glass;

the upper end and the lower end of the light-transmitting glass are both provided with air vents, and the upper air vent and the lower air vent are respectively provided with an outer upper baffle and an outer lower baffle which can be opened and closed correspondingly;

the lower end of the heat storage wall is provided with a vent hole, and the upper vent hole and the lower vent hole are respectively provided with an inner upper baffle plate and an inner lower baffle plate which can be opened and closed correspondingly;

one or more electric heating plates are arranged at the top end of the air interlayer;

a phase change material with the phase change temperature of 25-35 ℃ is placed in the air interlayer;

the front surface of each outer shutter sheet is paved with a solar cell panel, namely a first solar cell panel, and the back surface of each outer shutter sheet is paved with a heat reflection plate;

the front surface of each shutter sheet in each sheet is paved with a light reflecting plate, and the back surface is paved with a solar cell panel, namely a second solar cell panel;

the first solar cell panel and the second solar cell panel are both connected with the electric heating plate through wires;

the inner and outer rows of blind slats are respectively controlled by a first pull rope and a second pull rope to rotate, and one ends of the first pull rope and the second pull rope are extended to the indoor.

2. The double row blind heat collecting wall device as claimed in claim 1, wherein:

the inner blind sheet is installed behind the outer blind sheet in an inclined manner of 25-45 degrees.

3. The double row blind heat collecting wall device as claimed in claim 1, wherein:

one or more electric heating plates are arranged at the top end between the transparent glass and the first row of blind sheets; when a plurality of electric heating plates are arranged, the plurality of electric heating plates are arranged along the east-west direction.

4. The double row blind heat collecting wall device as claimed in claim 1, wherein:

the phase-change material is arranged at the bottom of an air interlayer formed by the outer shutter piece and the inner shutter piece and is arranged along the east-west direction.

5. The double row blind heat collecting wall device as claimed in claim 1, wherein:

an air channel is reserved in the middle when the front surface and the back surface of each shutter sheet are connected.

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