Wind direction-based building energy-saving comprehensive utilization system and control method

Abstract

The invention belongs to the technical field of energy conservation and emission reduction, and particularly relates to a wind-direction-based building energy conservation comprehensive utilization system and a control method.The wind-direction-based building energy conservation comprehensive utilization system and the control method comprise at least four comprehensive utilization intelligent control devices which are placed on the four faces of a building, the comprehensive utilization intelligent control device comprises an intelligent window assembly, a ventilation pipeline testing mechanism and a central control module. The ventilation pipeline testing mechanism comprises a ventilation pipeline body and air volume testing pieces arranged in the ventilation pipeline body, the air volume testing pieces are used for measuring the air volume, and the air volume testing pieces in four directions test the air volume in the four directions; the building energy-saving comprehensive utilization system based on the wind direction and the control method have the effects that the external wind direction can be detected, intelligent ventilation and energy-saving comprehensive utilization are carried out, and the building energy-saving effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy conservation and emission reduction, and specifically relates to a building energy-saving comprehensive utilization system based on wind direction and a control method. Background Art

[0002] Energy-saving buildings refer to low-energy buildings designed in accordance with the basic methods of climate design and energy conservation, after studying the building planning zoning, groups and units, building orientation, spacing, solar radiation, wind direction and external space environment;

[0003] In areas with hot summers and warm winters, natural ventilation has been recognized as one of the important means of building energy conservation. For residential buildings, natural ventilation design has been written into the building energy conservation design standards, and there are many mandatory regulations. However, for many public buildings, due to the lack of effective natural ventilation measures, there are currently no mandatory regulations on natural ventilation design. Take a single office building as an example to illustrate the difficulties of using natural ventilation: general natural ventilation requires opening the outer windows. For people sitting next to the outer windows, when the wind is strong, the natural wind outside the room will directly blow into the room, causing people to feel uncomfortable or messing up the items in the house. People sitting in certain "dead corners" far away from the outer windows may also feel that the wind is not strong enough.

[0004] Therefore, the air blowing directly from the outside window into the room is uneven and the air supply effect is not good. When the outdoor wind is strong, the window cannot be opened to draw in the wind, especially in high-rise buildings, which may easily cause accidents such as window falling off. If the air conditioning system is used to adjust the indoor air in such a season, a lot of energy will be wasted.

[0005] Among the existing technologies, with the shortage of conventional energy, building power supply has gradually developed in a diversified and sustainable direction. Photovoltaic power generation technology based on clean and renewable solar energy has attracted widespread attention from countries around the world and has developed rapidly. Distributed energy resources (DER) such as Building Integrated PV (BIPV), wind turbine power generation for buildings, and household fuel cell power generation systems have made great progress. The electricity generated by these power sources is DC or can be converted into DC after simple rectification.

[0006] The invention with patent publication number CN112556063A provides a building energy-saving ventilation system, which relates to the technical field of soil-air heat exchange system; the building energy-saving ventilation system includes an indoor air heat exchange unit and a soil-air heat exchange unit; the indoor air heat exchange unit includes an insulation box, an exhaust fan, a plurality of heat exchange plates and a heat exchange ventilation pipe; the plurality of heat exchange plates are relatively arranged inside the insulation box; the heat exchange ventilation pipe is arranged through the heat exchange plate, and the two ends of the heat exchange ventilation pipe extend to the outside of the insulation box respectively; the insulation box is also provided with an air inlet pipe and an air outlet pipe; one end of the air inlet pipe is connected to the air outlet of the exhaust fan; the soil-air heat exchange unit includes an underground ventilation pipe and an air supply device; the air inlet of the air supply device is connected to one end of the underground ventilation pipe, and the air outlet is connected to one end of the heat exchange ventilation pipe; the building energy-saving ventilation system in the present invention makes full use of the temperature of the original indoor air, reduces the heat exchange pressure of the soil-air heat exchange system, reduces the scale of the soil-air heat exchange system, and saves resources.

[0007] In the actual ventilation process, the external wind direction is not easy to detect and difficult to control, so building energy-saving systems based on wind direction are rare, and systems that can be used comprehensively are difficult to develop. Summary of the invention

[0008] The purpose of the present invention is to provide a building energy-saving comprehensive utilization system and control method based on wind direction, so as to solve the technical problems that the external wind direction is not easy to detect and the external wind direction is difficult to control, so the building energy-saving system based on wind direction is rare, and the system that can also be used for comprehensive utilization is difficult to develop, so as to achieve the purpose of being able to detect the external wind direction, and perform intelligent ventilation and energy-saving comprehensive utilization, so as to improve the energy-saving effect of the building.

[0009] In order to solve the above technical problems, the present invention provides a building energy-saving comprehensive utilization system and control method based on wind direction, including:

[0010] At least 4 comprehensive intelligent control devices are placed on the four sides of the building, and the comprehensive intelligent control devices include intelligent window components, ventilation duct testing mechanisms and central control modules;

[0011] The ventilation duct testing mechanism includes a ventilation duct body and an air volume test piece arranged in the ventilation duct body, the air volume test piece is used to measure the size of the air volume, the air volume test pieces in four directions test the air volume in four directions, the air volume test piece collects the wind level in four directions, and transmits the collected wind level data to the central control module, and the central control module controls the switch of the smart window assembly according to the collected wind level data to perform ventilation;

[0012] The smart window assembly includes a window frame, a window adapted in the window frame and a control stepper motor. The middle of the window is laterally arranged on a control shaft, the control shaft passes through the window frame, and the control shaft is controlled by a control stepper motor arranged outside the window frame.

[0013] Furthermore, the intelligent control device also includes a wind energy utilization mechanism;

[0014] The wind energy utilization mechanism comprises an air inlet arranged on the upper side of the window frame, the air inlet is located inside the building, a micro wind generator is arranged on the air inlet of the air inlet, and the micro wind generator is connected to a power storage device.

[0015] Furthermore, the material above the air inlet is rubber and is adapted to the upper structure inside the building.

[0016] Furthermore, the control angle of the stepper motor is the angle of rotation of the window from the top to the inside of the building;

[0017] The control angle is 0-45 degrees.

[0018] Furthermore, the control angle of the stepper motor is the angle of rotation of the upper side of the window toward the outer side of the building;

[0019] The control angle is 0-45 degrees.

[0020] Furthermore, a humidity sensor is provided in the ventilation duct body, and the humidity sensor extends out of the ventilation duct body to sense the humidity condition and collect humidity data. The humidity sensor transmits the collected humidity data to the central control module.

[0021] Furthermore, the air inlet is located on the ventilation duct body.

[0022] Furthermore, the width of the air inlet is the width of the window frame;

[0023] The thickness of the air inlet is 10-30 cm.

[0024] Another object of the present invention is to provide a control method for a building energy-saving comprehensive utilization system based on wind direction.

[0025] Including the utilization system as described above, its control method is as follows:

[0026] Step 1: Collect wind levels in four directions through the wind volume test piece, and transmit the collected wind level data to the central control module;

[0027] Step 2: The central control module starts the control stepper motor according to the collected wind level data, controls the stepper motor to drive the control shaft to rotate, drives the window to rotate, and opens the window for ventilation;

[0028] In step 2: the humidity sensor senses the humidity. When it rains, the humidity increases. The humidity sensor transmits the humidity information to the central control module. The central control module determines that the humidity is greater than a specific threshold, and sends a closing signal to the control stepper motor, which controls the stepper motor to control the window to close.

[0029] Step 3: Part of the ventilation wind enters the air inlet, drives the micro wind turbine to generate electricity, and stores the electricity in the power storage device.

[0030] The beneficial effects of the present invention are:

[0031] 1. Through the comprehensive use of intelligent control devices in four directions, ventilation can be carried out when the wind volume in any direction increases, thereby achieving the purpose of intelligent control ventilation.

[0032] 2. After the air enters, the natural wind passes through the air inlet of the ventilation duct body, blowing the micro wind generator to generate electricity, thereby supplying power to the control stepper motor, thus forming a self-circulation.

[0033] 3. The humidity sensor senses the humidity. When it rains, the humidity increases. The humidity sensor transmits the humidity information to the central control module. The central control module determines that the humidity is greater than a specific threshold, and sends a closing signal to control the stepper motor. The stepper motor controls the window to close, so that the window can be closed when it rains.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a structural schematic diagram of a building energy-saving comprehensive utilization system and control method based on wind direction of the present invention;

[0037] Figure 2 It is a front view of the building energy-saving comprehensive utilization system and control method based on wind direction of the present invention;

[0038] Figure 3 It is a structural block diagram of the present invention.

[0039] In the figure:

[0040] 1. Comprehensive use of intelligent control devices;

[0041] 2. Smart window assembly; 21. Window frame; 22. Window; 23. Control stepper motor; 24. Control shaft;

[0042] 3. Ventilation duct testing mechanism; 31. Ventilation duct body; 32. Air volume test piece;

[0043] 4. Wind energy utilization mechanism; 41. Air inlet; 42. Micro wind turbine; 43. Power storage device;

[0044] 5. Humidity sensor. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Example:

[0047] like Figures 1 to 3 As shown, a building energy-saving comprehensive utilization system and control method based on wind direction include:

[0048] At least four comprehensive utilization intelligent control devices 1 are placed on the four sides of the building, and the comprehensive utilization intelligent control device 1 includes an intelligent window assembly 2, a ventilation duct testing mechanism 3 and a central control module. The comprehensive utilization intelligent control device 1 in four directions can detect the wind volume and wind level in the four directions, so as to start the intelligent window assembly 2 in which direction for ventilation according to the wind volume, thereby forming an automatic ventilation or closing operation.

[0049] Among them, the ventilation duct testing mechanism 3 includes a ventilation duct body 31 and an air volume testing piece 32 arranged in the ventilation duct body 31. The air volume testing piece 32 is used to measure the size of the air volume. The four-direction air volume testing pieces 32 test the air volume in four directions. The air volume testing piece 32 collects wind levels in four directions and transmits the collected wind level data to the central control module. The central control module controls the switch of the smart window assembly 2 according to the collected wind level data to perform ventilation.

[0050] As the floor level increases, the wind speed usually increases, which can be estimated using the exponential wind profile model:

[0051] v(z)=v0*(z / z0) α

[0052] Where, v(z): wind speed at height z (m / s);

[0053] v0: wind speed at reference height z0 (usually 10 meters);

[0054] α: Wind shear index (about 0.3 in urban environment, 0.15 in suburban area, and 0.1 in open area).

[0055] Example:

[0056] If the wind speed is 5m / s (level 3 wind) at 10 meters above the ground, in a city with 30 floors (about 90 meters):

[0057] v(90)=5*(90 / 10) 0.3 ≈5*1.95≈9.75m / s (about level 5 wind)

[0058] Therefore, in this embodiment, the ventilation conditions on different floors are different. After estimation based on the exponential wind profile model, the central control module controls the smart window assembly 2 to open at wind level 0-9 and to close at wind level 9 or above.

[0059] At the same time, the control angle of the stepper motor 23 is the angle of rotation of the upper side of the window 22 toward the inner side of the building; the control angle is 0-45 degrees. The control angle of the stepper motor 23 is the angle of rotation of the upper side of the window 22 toward the outer side of the building; the control angle is 0-45 degrees.

[0060] The relationship between window ventilation and wind speed / floor:

[0061] Q = C*A*v(z);

[0062] Where, Q: ventilation volume (m 3 / s); C: flow coefficient (about 0.6-0.8, depending on the window design); A: effective window area (m 2 ); v(z): wind speed at the current floor height.

[0063] Therefore, the angle at which the windows are opened will be different depending on the floor height;

[0064] According to experiments, when the wind speed is 0-3, the window opening angle is 0-45 degrees; when the wind speed is 4-5, the window opening angle is 0-30 degrees; when the wind speed is 6-7, the window opening angle is 0-15 degrees; when the wind speed is 8, the window opening angle is 0-10 degrees.

[0065] In this embodiment, the smart window assembly 2 includes a window frame 21, a window 22 adapted in the window frame 21, and a control stepper motor 23. The middle of the window 22 is transversely arranged on a control shaft 24, the control shaft 24 is arranged in the window frame 21, and the control shaft 24 is controlled by a control stepper motor 23 arranged outside the window frame 21. The control stepper motor 23 is started, and the control stepper motor 23 drives the control shaft 24 to rotate, driving the window 22 to rotate, and the window 22 is opened for ventilation. The size of the opening of the window 22 is determined according to the size of the air volume determined by the central control module and the above experimental data.

[0066] like Figures 1 to 3 As shown, the intelligent control device also includes a wind energy utilization mechanism 4; the wind energy utilization mechanism 4 includes an air inlet 41 arranged on the upper side of the window frame 21, the air inlet 41 is located inside the building, and a micro wind generator 42 is arranged on the air inlet of the air inlet 41. The micro wind generator 42 is connected to a power storage device 43, and the power storage device 43 can supply power to control the stepping motor 23, thereby realizing self-circulation and utilization without external power supply.

[0067] In this embodiment, the material above the air inlet 41 is rubber material, and is adapted to the upper structure inside the building.

[0068] In this embodiment, the air inlet 41 is located at the ventilation duct body 31 .

[0069] The width of the air inlet 41 is the width of the window frame 21 ; in the present embodiment, the thickness of the air inlet 41 is 10-30 cm, so that sufficient air volume can enter the air inlet 41 to better drive the micro wind generator 42 to generate electricity.

[0070] The humidity sensor 5 is arranged in the ventilation duct body 31, and the humidity sensor 5 extends out of the ventilation duct body 31 to sense the humidity and collect humidity data, and the humidity sensor 5 transmits the collected humidity data to the central control module. The humidity sensor 5 can sense whether it is rainy. When it is rainy, the central control module can send a closing signal to the smart window assembly 2 to close the window 22, thereby improving the degree of automation.

[0071] Embodiment 2:

[0072] A control method for a building energy-saving comprehensive utilization system based on wind direction,

[0073] Including the utilization system as described above, its control method is as follows:

[0074] Step 1: Collect wind levels in four directions through the wind volume test piece 32, and transmit the collected wind level data to the central control module;

[0075] Step 2: The central control module starts the control stepper motor 23 according to the collected wind level data, controls the stepper motor 23 to drive the control shaft 24 to rotate, drives the window 22 to rotate, and opens the window 22 for ventilation;

[0076] In step 2: the humidity sensor 5 senses the humidity. When it rains, the humidity increases. The humidity sensor 5 transmits the humidity information to the central control module. The central control module determines that the humidity is greater than a specific threshold, and thus sends a closing signal to the control stepper motor 23. The control stepper motor 23 controls the window 22 to close.

[0077] Step 3: Part of the ventilation wind enters the air inlet 41 , drives the micro wind generator 42 to generate electricity, and stores the electricity in the power storage device 43 .

[0078] In summary: through the comprehensive utilization of the intelligent control device 1 in four directions, ventilation can be performed when the wind volume in any direction increases, thereby achieving the purpose of intelligent ventilation control. After the air enters, the natural wind passes through the air inlet 41 of the ventilation duct body 31, blowing the micro wind generator 42 to generate electricity, so that the control stepper motor 23 can be powered, thereby forming a self-circulation. The humidity sensor 5 is used to sense the humidity. When it rains, the humidity increases. The humidity sensor 5 transmits the humidity information to the central control module. The central control module determines that the humidity is greater than a specific threshold, thereby sending a closing signal to the control stepper motor 23, and the control stepper motor 23 controls the window 22 to close, so that the window 22 can be closed when it rains.

[0079] The various devices selected in this application are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0080] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should 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 a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0082] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A building energy-saving comprehensive utilization system based on wind direction, characterized in that: include: At least four comprehensive intelligent control devices (1) are placed on four sides of a building, wherein the comprehensive intelligent control devices (1) include an intelligent window assembly (2), a ventilation duct testing mechanism (3) and a central control module; The ventilation duct testing mechanism (3) comprises a ventilation duct body (31) and an air volume testing piece (32) arranged in the ventilation duct body (31), wherein the air volume testing piece (32) measures the size of the air volume, and the air volume testing pieces (32) in four directions test the air volumes in the four directions, and the air volume testing piece (32) collects wind levels in the four directions and transmits the collected wind level data to a central control module, and the central control module controls the switch of the smart window assembly (2) according to the collected wind level data to perform ventilation; The smart window assembly (2) comprises a window frame (21), a window (22) adapted in the window frame (21), and a control stepping motor (23); a control shaft (24) is transversely arranged in the middle of the window (22); the control shaft (24) is passed through the window frame (21); and the control shaft (24) is controlled by a control stepping motor (23) arranged outside the window frame (21).

2. A wind direction-based building energy-saving comprehensive utilization system as claimed in claim 1, characterized in that: The intelligent control device also includes a wind energy utilization mechanism (4); The wind energy utilization mechanism (4) comprises an air inlet (41) arranged on the upper side of the window frame (21); the air inlet (41) is located inside the building; a micro wind generator (42) is arranged on the air inlet of the air inlet (41); and the micro wind generator (42) is connected to a power storage device (43).

3. A wind direction-based building energy-saving comprehensive utilization system as claimed in claim 2, characterized in that: The material above the air inlet (41) is rubber material and is adapted to the upper structure inside the building.

4. A wind direction-based building energy-saving comprehensive utilization system as claimed in claim 3, characterized in that: The control angle of the stepping motor (23) is the angle at which the window (22) rotates from the top to the inside of the building; The control angle is 0-45 degrees.

5. A wind direction-based building energy-saving comprehensive utilization system as claimed in claim 4, characterized in that: The control angle of the stepping motor (23) is the angle at which the window (22) rotates from the top to the outside of the building; The control angle is 0-45 degrees.

6. A wind direction-based building energy-saving comprehensive utilization system as claimed in claim 5, characterized in that: A humidity sensor (5) is arranged in the ventilation duct body (31); the humidity sensor (5) extends out of the ventilation duct body (31) to sense humidity conditions and collect humidity data; the humidity sensor (5) transmits the collected humidity data to the central control module.

7. A wind direction-based building energy-saving comprehensive utilization system as claimed in claim 6, characterized in that: The air inlet (41) is located on the ventilation duct body (31).

8. The wind direction-based building energy-saving comprehensive utilization system as claimed in claim 7, characterized in that: The width of the air inlet (41) is the width of the window frame (21); The thickness of the air inlet (41) is 10-30 cm.

9. A control method for a building energy-saving comprehensive utilization system based on wind direction, characterized in that: The system comprises the utilization system as described in any one of items 1 to 8, wherein the control method thereof is as follows: Step 1: collecting wind levels in four directions through the wind volume test piece (32), and transmitting the collected wind level data to the central control module; Step 2: The central control module starts the control stepper motor (23) according to the collected wind level data, controls the stepper motor (23) to drive the control shaft (24) to rotate, drives the window (22) to rotate, and opens the window (22) for ventilation; In step 2: the humidity sensor (5) senses the humidity. When it rains, the humidity increases. The humidity sensor (5) transmits the humidity information to the central control module. The central control module determines that the humidity is greater than a specific threshold, and thus sends a closing signal to the control stepper motor (23). The control stepper motor (23) controls the window (22) to close. Step 3: Part of the ventilation wind enters the air inlet (41), drives the micro wind generator (42) to generate electricity, and stores the electricity in the power storage device (43).

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