CN114076371A - Airflow guiding device and airflow guiding equipment - Google Patents

Abstract

The embodiment of the application provides an air current guiding device and air current guiding equipment, the air current guiding device includes the body, the body is formed with the cavity, the body includes first lateral wall and second lateral wall, the cavity is located between first lateral wall and the second lateral wall, be provided with at least one first overfall mouth with the cavity intercommunication on the first lateral wall, be provided with at least one second overfall mouth with the cavity intercommunication on the second lateral wall, can discharge the cavity from one of them of first overfall mouth and second overfall mouth under the effect of pressure differential after the air in the cavity absorbs heat, and outside air can mend the cavity from one of them of first overfall mouth and second overfall mouth under the effect of pressure differential. The air current guiding device of this application embodiment under the condition that does not need extra power supply, utilizes solar energy or wind energy to promote indoor natural draft when realizing summer, also can realize utilizing solar energy or wind energy to provide hot air for indoor when winter, reaches the purpose that reduces the consumption.

Description

Airflow guiding device and airflow guiding equipment

Technical Field

The invention relates to the technical field of energy conservation, in particular to an airflow guiding device and airflow guiding equipment.

Background

Relevant statistics indicate that air conditioning systems account for approximately 40% of all energy usage by buildings around the world. The window is used as a part with lower energy efficiency in the building, and the current building in China causes about 1.17 trillion yuan of energy loss through the window every year, which accounts for about 1.4 percent of the total amount of GDP in China. Therefore, reducing the energy consumption of the air conditioning system and reducing the energy loss through the window are two of the most important measures to reduce the energy consumption cost of the building. Many energy conversion projects are aimed at achieving this goal, but are subject to costly conversion projects.

Technologies such as double-layer exterior walls and low-emissivity glass are commonly adopted in the market at present, however, the adaptability of the technologies to seasonal changes is poor, because the low-emissivity glass in winter and the double-layer exterior wall in summer cause low overall efficiency and even increase the overall energy consumption of buildings in turn. Taking low-emissivity glass as an example, the low-emissivity glass can reflect part of solar radiation in summer to reduce the use of electric energy in a building, but in winter, the low-emissivity glass also reduces the solar radiation irradiated into the building, and in winter, the part of solar radiation is needed to heat indoor air, so that the low-emissivity glass causes the increase of energy consumption in winter.

However, in the case of a general glass or a general double glass curtain wall, solar radiation can penetrate into a room to heat the interior air in winter, but solar radiation cannot be blocked in summer, which may result in an increase in the overall energy consumption of the building.

Disclosure of Invention

In view of the above, embodiments of the present application are intended to provide an airflow guiding device and an airflow guiding apparatus that achieve natural exchange of airflow and energy saving.

In order to achieve the above object, an embodiment of the present application provides an airflow guiding device, including a body, the body is formed with a cavity, the body includes a first side wall and a second side wall, the cavity is located between the first side wall and the second side wall, be provided with on the first side wall at least one with the first overflowing mouth that the cavity communicates, be provided with on the second side wall at least one with the second overflowing mouth that the cavity communicates, air in the cavity can follow under the effect of pressure difference after absorbing heat one of first overflowing mouth with the second overflowing mouth discharges the cavity, and outside air can follow under the effect of pressure difference one of them of first overflowing mouth with the second overflowing mouth mends into the cavity.

In some embodiments, the airflow guiding device further includes a plurality of control portions, and the control portions are correspondingly disposed at each of the first flow-through openings and each of the second flow-through openings, so as to control the flow areas of the first flow-through openings and the second flow-through openings.

In some embodiments, when it is required to guide the airflow of the first side wall on the side away from the cavity to the side of the second side wall on the side away from the cavity, the control part closes part of the first flow opening and part of the second flow opening, wherein the height of the second flow opening for keeping the airflow flowing is higher than that of the first flow opening for keeping the airflow flowing; and/or when the air flow of the second side wall facing away from the cavity needs to be guided to the side of the first side wall facing away from the cavity, the control part closes part of the first through opening and the second through opening, wherein the height of the first through opening for keeping the air flow in circulation is higher than that of the second through opening for keeping the air flow in circulation.

In some embodiments, the airflow guiding device further comprises a filtering part connected to the body or the control part, and the filtering part covers the first flow port and/or the second flow port to purify the airflow.

In some embodiments, the gas flow directing means comprises a divider disposed in the cavity, the divider dividing the cavity into communicating first and second subchambers.

In some embodiments, a gap is formed between at least part of the structure of the edge of the partition board along the circumferential direction and the corresponding inner wall of the cavity, and the first sub-cavity and the second sub-cavity are communicated through the gap; and/or, a first through hole is formed in the partition plate, and the first sub-cavity and the second sub-cavity are communicated through the first through hole.

In some embodiments, the spacer is made of a filtering material; or, the filter plate is made of a light-transmitting material.

In some embodiments, the spacer plate is rotationally disposed within the cavity; and/or the spacing plate is slidingly arranged in the cavity.

In some embodiments, the airflow directing device comprises a plurality of flow guides disposed within the cavity, the plurality of flow guides being spaced apart along a one-dimensional direction in a plane parallel to the first or second side wall.

In some embodiments, a plurality of the flow guiding members are arranged at intervals along the height direction of the cavity, and the surface of the flow guiding member can block the airflow from the bottom of the cavity.

In some embodiments, the plurality of deflectors are rotatably disposed within the cavity; and/or the plurality of flow guide pieces are arranged in the cavity in a sliding manner so as to adjust the distance between two adjacent flow guide pieces.

In some embodiments, the flow guide has a second through hole formed therein.

In some embodiments, the flow guide member is made of a filtering material, or the flow guide member is made of a light-transmitting material.

In some embodiments, the first sidewall is made of a light-transmissive material; and/or the second side wall is made of a light-transmitting material.

In some embodiments, the airflow directing device is a window for natural exchange of air inside and outside the window.

In some embodiments, the air flow guide is a preform or is assembled from a construction site.

The embodiment of the application also provides airflow guide equipment, which comprises a main body framework and any one of the airflow guide equipment, wherein the main body framework is provided with an indoor space, and the airflow guide device is arranged on the main body framework to naturally exchange indoor and outdoor air of the main body framework.

In some embodiments, the airflow directing device is a construction facility or a vehicle.

The air current guiding device of this application embodiment to air current guiding device is the window as the example, and under the irradiation of sun, the body is because of the heat absorption temperature rise, and the convection heat transfer is carried out to the air in body and the cavity to and the sunlight directly heats the air in the cavity after permeating the body, makes the inside air temperature of cavity rise, and hot-air is heated the thermal expansion, rises, makes hot-air concentrate on the upper space of cavity, forms the atmospheric pressure difference inside the cavity and outside. Taking the height of the first overflowing opening higher than that of the second overflowing opening as an example, under the action of pressure difference, airflow in the upper space is discharged out of the cavity from the first overflowing opening, and airflow in the surrounding environment outside the second side wall is continuously supplemented into the cavity from the second overflowing opening, so that a natural flow path is formed, wherein the airflow enters the cavity from the second overflowing opening and then is discharged out of the cavity from the first overflowing opening.

Drawings

Fig. 1 is a schematic structural view of an airflow guide device according to a first embodiment of the present application, in which arrow directions exemplarily indicate airflow directions;

FIG. 2 is a schematic view of the airflow directing arrangement of FIG. 1 in another state;

FIG. 3 is a schematic view of the airflow directing apparatus of FIG. 1 in a further state;

FIG. 4 is a schematic view of an airflow directing device according to a second embodiment of the present application;

fig. 5 is a schematic structural view of an airflow guide device according to a third embodiment of the present application.

The reference numbers describe the body 10; a first side wall 11; a second side wall 12; a cavity 101; a first subchamber 101 a; a second subchamber 101 b; first flow ports 102', 102 "; second flow ports 103', 103 "; a frame 13; a filter part 20; a partition plate 30; a first through-hole 301; a flow guide member 40; second through-hole 401

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiments of the present application, "up", "down", "left", "right", orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, it being understood that these orientation terms are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application.

It should be noted that the arrows in the drawings only exemplarily indicate the general trend of the airflow, and do not limit the airflow to strictly flow in the arrow direction.

The embodiment of the application provides an airflow guiding device for natural exchange of airflow. It should be noted that the specific application of the airflow guide device is not limited.

In the first embodiment of the present application, the airflow guiding device is described as an example of a window.

First embodiment

The airflow directing device comprises a body 10. Specifically, referring to fig. 1, a cavity 101 is formed in a body 10, the body 10 includes a first side wall 11 and a second side wall 12, the cavity 101 is located between the first side wall 11 and the second side wall 12, at least one first flow port 102 ', 102 "is disposed on the first side wall 11 and is communicated with the cavity 101, at least one second flow port 103', 103" is disposed on the second side wall 12 and is communicated with the cavity 101, the first flow port 102 ', 102 "and the second flow port 103', 103" have a height difference, air in the cavity 101 can be discharged out of the cavity from one of the first flow port 102 ', 102 "and the second flow port 103', 103" under the action of a pressure difference after absorbing heat, and external air can be fed into the cavity 101 from the other of the first flow port 102 ', 102 "and the second flow port 103', 103" under the action of the pressure difference.

The number and shape of the first flow openings 102', 102 "are not limited. The number and shape of the second flow openings 103', 103 "are not limited.

Taking the airflow guiding device as an example of a window, under the irradiation of the sun, the temperature of the body 10 rises due to heat absorption, the body 10 and the air in the cavity 101 perform convection heat transfer, and sunlight directly heats the air in the cavity 101 after penetrating through the body 10, so that the temperature of the air in the cavity 101 rises, the hot air is heated, expanded and raised, the hot air is concentrated in the upper space of the cavity 101, and an air pressure difference is formed between the inside and the outside of the cavity 101. Taking the height of the first overflowing opening higher than that of the second overflowing opening as an example, under the action of pressure difference, airflow in the upper space is discharged out of the cavity from the first overflowing opening, and airflow in the surrounding environment outside the second side wall is continuously supplemented into the cavity from the second overflowing opening, so that a natural flow path is formed, wherein the airflow enters the cavity from the second overflowing opening and then is discharged out of the cavity from the first overflowing opening.

The number of the first flow ports 102 ', 102 "and the second flow ports 103', 103" is not limited, and may be one or any number. In the embodiment of the present application, the number of the first flow openings 102 ', 102 "is two, and the number of the second flow openings 103', 103" is two.

In one embodiment, the first sidewall 11 is provided with at least two first flow openings 102 ', 102 ″ having a height difference, and the second sidewall 12 is provided with at least two second flow openings 103', 103 ″ having a height difference. The first overflowing ports 102 ', 102 "and the second overflowing ports 103', 103" are communicated with the cavity 101; the height of at least one first flow opening 102 'is higher than that of at least one second flow opening 103 ", and the height of at least one second flow opening 103' is higher than that of at least one first flow opening 102".

In an embodiment, the airflow activating device further includes a plurality of control portions, and each of the first flow openings and each of the second flow openings are correspondingly provided with a control portion to control the flow areas of the first flow openings and the second flow openings.

In summer or in the case that the outside ambient temperature is high, please refer to fig. 1, the control part closes the second flow port 103 'at the higher height and closes the first flow port 102 at the lower height, opens the first flow port 102' at the higher height and opens the second flow port 103 at the lower height, the air in the building room enters the cavity 101 through the second flow port 103 ″, after the air in the cavity 101 is transferred by convection and radiation, flows upwards, is gathered at the upper part of the cavity 101, and finally flows to the outdoor through the first flow passage port 102', the indoor air is continuously supplemented from the indoor to the cavity 101, thereby circulating, the indoor air can be continuously guided to the outdoor, therefore, the solar energy is utilized to promote the indoor natural ventilation in summer or when the temperature of the external environment is higher, no additional power source is needed, and the purpose of reducing the energy consumption of the building is achieved.

In winter or in the case of low outside ambient air temperature, referring to fig. 2, the second flow port 103 ' at a higher level and the first flow port 102 ' at a lower level are opened, and the first flow port 102 ' at a higher level and the second flow port 103 "at a lower level are closed. After the air in the cavity 101 is subjected to convection heat transfer and radiation heat transfer, the air flows to the upper part of the cavity 101 and is concentrated on the upper part of the cavity 101, air pressure difference is formed between the inner side and the outer side of the upper part of the cavity 101, hot air is forced to finally flow to the indoor through the second overflowing port 103 ', outdoor air is continuously supplemented into the cavity 101 from the outdoor through the first overflowing port 102', the circulation is carried out, the outdoor air can be continuously guided to the indoor, and relatively hot air enters the indoor, so that the solar energy is utilized to provide hot air for the indoor in winter or when the outside ambient temperature is low, and the purpose of heating to reduce the energy consumption of buildings is achieved.

The shapes of the first flow port and the second flow port are not limited, and for example, the first flow port and the second flow port may be circular, polygonal, elliptical, a figure formed by enclosing straight lines and arcs, and the like, which is not limited herein, but is within the scope of the present patent.

It will be appreciated that in the case of the air flow guide being a window, the air flow guide further comprises a rim 13, the rim 13 being wrapped around the edges of the first and second side walls 11, 12. The frame 13 has fixing and mounting functions on the first side wall 11 and the second side wall 12, and is convenient to be connected with the wall of a building through the frame 13. It is understood that the frame 13 may be made of metal or other materials to sufficiently absorb the heat energy of the sun, and is not limited thereto but is within the scope of the present patent. For example, the common aluminum alloy material not only has the cost but also can absorb heat better.

The smoke prevention and exhaust system is one of the most important links for improving the fire safety of the building. Statistics have shown that more than 50-70% of the deaths in fires are due to asphyxiation from inhalation of toxic smoke. Most people who are burned directly are also caused by losing the driving force after being stunned by inhaling the toxic smoke. In the prior art, smoke generated in the process of fire is discharged by a smoke prevention and discharge system in part of buildings, so that the fire spreading is delayed, and the time is won for the safe evacuation of personnel. According to the 'building design fire protection code' (GB50016-2014), the fire protection investment of residential buildings accounts for about 2-5% of the total installation investment, and office buildings account for about 5-8%.

The smoke exhaust preventing pipeline system in the prior art is complex, the design, installation and maintenance cost is high, and the complex pipeline system is easy to lose efficacy under the condition of fire hazard, and even under the condition of no fire hazard. For example, the existing smoke and smoke preventing and discharging system needs to use more mechanical parts and needs to be powered on to drive the devices, and when a fire disaster happens, the overall function is easy to fail due to power failure or failure of the mechanical parts, so that personnel and property loss is caused. In addition, these smoke protection and exhaust systems require a large amount of space in the building, such as installing a large number of pipes, etc., resulting in a low utilization of building space and an increase in overall cost. Moreover, the smoke prevention and exhaust systems are only used in case of fire and are not used in normal times, which causes great resource waste. Therefore, most building owners have a lucky psychology, are only provided with the smoke prevention and exhaust systems for meeting the fire-fighting requirements, and lack the power for daily maintenance.

In the airflow guiding device according to the embodiment of the present application, referring to fig. 3, in a fire condition, the first flow-passing openings on the first side wall 11 are all opened, the second flow-passing openings on the second side wall 12 are all opened, smoke can enter the cavity 101 through the second flow-passing openings on the second side wall 12 due to the turbulent characteristic or the high temperature characteristic, and the smoke can be discharged through the first flow-passing openings under the flowing inertia effect of the airflow. Specifically, the flue gas entering the cavity 101 from the second overflow port 103 ″ can be discharged from the first overflow port 102 ″ or discharged from the first overflow port 102' after rising; the flue gas entering the cavity 101 through the second flow port 103 'can be mostly directly discharged through the first flow port 102'. Therefore, high-temperature smoke generated in an indoor fire disaster can be guided to the outdoor environment through the two modes, and the effect of natural smoke exhaust is achieved, so that the danger of building fire disasters is reduced, and sufficient personnel safety evacuation time is provided for personnel in a building.

The airflow guiding device of the embodiment of the application can be a prefabricated part, namely the airflow guiding device is manufactured into a prefabricated part in a processing factory and directly installed on an installation site; the air flow guiding device of the present embodiment may be assembled at an installation site, that is, a single part is produced at a processing factory and then assembled at the installation site.

The air current guiding device of this application embodiment can directly dismantle current window get off, directly installs the air current guiding device of this application embodiment to the mounted position of original window, need not to reform transform the building wall, can reform transform current window fast, and the repacking is convenient, reforms transform with low costsly.

In one embodiment, the first sidewall 11 is made of a light-transmitting material, and/or the second sidewall 12 is made of a light-transmitting material. The transparent material may be glass, wherein the specific type of the glass is not limited, and for example, the transparent material may be any one of common transparent glass, common colored glass, low-emissivity glass, heat-absorbing glass, electrochromic glass, liquid crystal glass or other glass, and may also be transparent solar panel, plastic or other transparent materials.

It should be noted that the first sidewall 11 may also be made of a non-light-transmitting material, and similarly, the second sidewall 12 may also be made of a non-light-transmitting material.

In an embodiment, referring to fig. 4, the airflow guiding device includes a partition plate 30, the partition plate 30 extends along a height direction of the cavity 101, two opposite plate surfaces of the partition plate 30 face the first side wall 11 and the second side wall 12, and the partition plate 30 divides the cavity 101 into a first sub-cavity 101a and a second sub-cavity 101b which are communicated with each other, wherein airflow of the first sub-cavity 101a and the second sub-cavity 101b can flow through, and volumes of the two sub-cavities 101a and 101b may be equal or different. It is understood that the partition 30 may be disposed substantially parallel to the first sidewall 11 and/or the second sidewall 12, or may form an angle with the first sidewall 11 and/or the second sidewall 12.

There are various ways to realize the airflow communication between the first sub-cavity 101a and the second sub-cavity 101b, in an embodiment, the edge of the partition plate 30 along the circumferential direction is spaced from the inner wall corresponding to the cavity 101, that is, a gap is formed between the edge of the partition plate 30 and the inner wall corresponding to the cavity 101, and the airflow can communicate between the first sub-cavity 101a and the second sub-cavity 101b through the gap. In another embodiment, referring to fig. 4, one or more first through holes 301 are formed on the partition plate 30, the number of the first through holes 301 is not limited, and the first sub-cavity 101a and the second sub-cavity 101b are in airflow communication through the first through holes 301. In yet another embodiment, the partition 30 is made of a material that is capable of ventilation. It is understood that the three schemes for realizing the air flow communication between the first sub-chamber 101a and the second sub-chamber 101b can be used alternatively, or in any combination.

In the case of fire, the partition board 30 can reduce the probability of vortex generation of the smoke, thereby reducing the advancing resistance of the smoke and achieving the purpose of enhancing the natural smoke discharging efficiency when the fire breaks out.

In one embodiment, the partition board 30 is rotatably disposed in the cavity 101, so that the angle of the partition board 30 can be adjusted, and the partition board 30 can better receive solar radiation and the like. The rotation axis of the partition plate 30 may be parallel to the first sidewall 11 or the second sidewall 12, or may be perpendicular to the first sidewall 11 or the second sidewall 12.

In an embodiment, the partition plate 30 is made of a filtering material, that is, the partition plate 30 is a filter screen, and the partition plate 30 can filter any one or more fluids such as gas, liquid, particulate matters, or multiphase flow, so as to purify the indoor air.

In an embodiment, the partition 30 is made of glass, for example, the partition 30 is a transparent heat-absorbing glass, which can transmit solar radiation from the external environment to the second sidewall 12, and can absorb solar radiation, so as to increase the temperature in the cavity 101 to enhance the convective heat transfer effect, thereby enhancing the air flow guiding performance. In another embodiment, the partition plate 30 is opaque heat-absorbing glass, the partition plate 30 is provided with a plurality of first through holes 301, and the solar radiation can irradiate the second sidewall 12 through the first through holes 301.

In an embodiment, referring to fig. 5, the airflow guiding device includes a plurality of flow guiding elements 40 disposed in the cavity 101, and the flow guiding elements 40 are spaced along a one-dimensional direction in a plane parallel to the first sidewall 11 or the second sidewall 12, for example, along a height direction of the cavity 101, or along a width direction of the cavity 101. Furthermore, one or more second through holes 401 are formed in the flow guide piece 40, and the airflow can pass through the second through holes 401 in the flowing process, so that the smoke is guided to stretch to the whole cavity 101, the flow guide piece 40 can reduce the probability of vortex generation of the smoke, reduce the advancing resistance of the smoke, and achieve the purpose of enhancing natural smoke exhaust in the case of fire.

It is understood that the angle, number, size, etc. of the above-mentioned flow guiding elements 40 can be set according to the actual use requirement. Specifically, in one embodiment, the flow guiding members 40 are slidably disposed in the cavity 101 to adjust the distance between two adjacent flow guiding members 40.

In an embodiment, the flow guiding element 40 is rotatably disposed in the cavity 101 to adjust the angle of the flow guiding element 40, and referring to fig. 5, the rotation axis (simplified to point O) of the flow guiding element 40 may be parallel to the first sidewall 11 or the second sidewall 12, or perpendicular to the first sidewall 11 or the second sidewall 12. When the plurality of flow guides 40 are arranged in the height direction of the cavity 101, the rotational axis of the flow guide 40 is parallel to the first side wall 11 or the second side wall 12, and when the plurality of flow guides 40 are arranged in the width direction of the cavity 101, the rotational axis of the flow guide 40 is perpendicular to the first side wall 11 or the second side wall 12.

It should be noted that in one embodiment, the baffle member 40 can both rotate and slide within the cavity.

In one embodiment, the guiding element 40 is made of a filtering material, that is, the guiding element 40 is a filter screen capable of filtering any one or more fluids such as gas, liquid, particulate matter, or multiphase flow, so as to purify the indoor air.

In an embodiment, the above-mentioned flow guiding element 40 is glass, for example, transparent heat absorbing glass, which can transmit solar radiation from the external environment to the second sidewall 12 on the one hand, and can absorb solar radiation on the other hand, both of which can increase the temperature in the cavity 101 to enhance the effect of convection heat transfer, thereby enhancing the guiding performance of the airflow. In another embodiment, the above-mentioned guiding element 40 may also be opaque heat absorbing glass, and the guiding element 40 is provided with a plurality of second through holes 401, and the solar radiation can be irradiated onto the second sidewall 12 through the second through holes 401.

In one embodiment, the airflow guiding device further includes a filter portion connected to the body 10 or the control portion, and the filter portion covers the first flow port and/or the second flow port, so that the filter portion 20 filters the airflow passing through the first flow port and/or the second flow port.

The specific material of the filter unit 20 is not limited as long as it can filter the air flow and allow the air flow to flow therethrough. For example, including but not limited to the following materials. First, chemical fiber non-woven material, known as polyester fiber, is commonly called non-woven fabric, which has the advantages of stable quality, large dust holding capacity, strong moisture resistance, long service life, economy, durability and the like. The second kind of synthetic fiber filter material has the advantages of small resistance, light weight, large capacity, environment protection (being incineratable), moderate price, etc. Third, glass fiber filter material: the glass fiber filter material is mainly prepared from glass fibers with different thicknesses and lengths by a special processing technology, and the glass fibers have the characteristics of high temperature resistance, high efficiency, long service life, environmental protection and the like. Fourth, the cotton fiber is a new filtering material compounded by chemical fiber and cotton fiber, which has the characters of small resistance, large dust capacity, light weight, stable performance, economy and environmental protection. Fifthly, activated carbon filter cotton.

It is understood that when the partition plate is made of filtering material, the partition plate may also be made of the filtering portion. Similarly, when the diversion member is made of filtering material, the diversion member can also be made of the filtering part.

Professor Panle jiaa barbawick, university of cornier, usa, developed in 2017 that if PM2.5 in china is lowered to the health level prescribed by the world health organization, the medical expenditure can be reduced by over 420 billion dollars (about 2,940 million RMB) as a whole, corresponding to an average of 210 dollars per year per person in china for the associated health expenditure. Pollution by fine particulate matter (PM2.5) has not only an impact on health, but also an impact on life span is also of great concern. A summary of a research report published by professor Joshua s.apte, austin division of texas university, usa in 2018 on "environmental science and technology communications": air pollution shortens the life of a person by about one year, while in regions with more severe pollution in asia and africa, the life is shortened for a longer time, on average 1.5 to 2 years. Research also shows that improving air quality can prolong life, and the effect is comparable to improving water sanitation and solving the problems of breast cancer or lung cancer.

The air-conditioning system in the prior art not only needs to consume electric energy for a long time for filtering air, but also has the characteristics of more germs, difficult cleaning, difficult maintenance and the like. The investigation result of the air conditioner health condition published by the Chinese disease prevention and control center shows that in the detection of dust accumulation amount and dust accumulation bacteria content of air ducts of air conditioning systems of more than 60 cities, the air conditioner air ducts with serious pollution account for 47.11 percent, the air conditioner air ducts with medium pollution account for 46.17 percent, and the air conditioner air ducts with qualified dust accumulation amount only accounts for 6.12 percent. The air current guiding device of this application embodiment can filter air under the condition that does not consume traditional electric energy, provides continuous fresh air for indoor personnel to guarantee indoor personnel's physical and mental health.

The control part is used for controlling the flow area of the first flow port and the flow area of the second flow port, and comprises various conditions, wherein one condition is that the corresponding first flow port or the corresponding second flow port only has two states of closing and opening under the action of the control part, namely, the flow area is zero when the corresponding first flow port or the corresponding second flow port is closed, and the flow area reaches the maximum value when the corresponding first flow port or the corresponding second flow port is opened. In one embodiment, the first flow port and the second flow port have a closed state, an open state and an intermediate state between closed and open states under the control of the control part, that is, the control part can partially shield the flow ports.

The specific structure of the control unit is not limited. For example in the form of a louver.

It is understood that the manner in which the control unit controls the flow areas of the first and second flow ports may be manual control or automatic control.

Second embodiment

In the second embodiment of the present application, the airflow guiding device is described as an example of a wall of a building.

Different from the first embodiment, in this embodiment, the first side wall and the second side wall are both part of the wall body, that is, the wall body may adopt a double-layer structure, and a cavity is formed between the outer side wall body and the inner layer wall body.

The air in the cavity is mainly heated by convection through the outer wall.

The principle and process of air flow circulation are referred to the first embodiment and will not be described in detail herein.

The present application further provides an airflow guiding apparatus, including a main body framework and the airflow guiding device of any of the above embodiments, wherein the main body framework has an indoor space, and the airflow guiding device is disposed on the main body framework to naturally exchange indoor and outdoor air of the main body framework. The natural exchange refers to a mode that airflow does not depend on electric energy to drive.

The specific type of the air flow guide device is not limited, and may be, for example, a construction facility or a vehicle, or the like. The building facilities can be buildings, overpasses and the like, and the vehicles can be automobiles, rail trains and the like.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.

Claims (18)

1. An airflow guiding device is characterized by comprising a body, wherein a cavity is formed in the body, the body comprises a first side wall and a second side wall, the cavity is located between the first side wall and the second side wall, at least one first overflowing port communicated with the cavity is formed in the first side wall, at least one second overflowing port communicated with the cavity is formed in the second side wall, air in the cavity can be discharged out of the cavity from one of the first overflowing port and the second overflowing port under the action of pressure difference after absorbing heat, and outside air can be supplemented into the cavity from the other one of the first overflowing port and the second overflowing port under the action of pressure difference.

2. The airflow directing device according to claim 1, further comprising a plurality of control portions, wherein the control portions are correspondingly disposed at each of the first flow-through openings and each of the second flow-through openings, so as to control the flow areas of the first flow-through openings and the second flow-through openings.

3. The airflow guide device according to claim 1, wherein the control portion closes part of the first and second flow openings when it is required to guide the airflow on the side of the first side wall facing away from the cavity to the side of the second side wall facing away from the cavity, wherein the height of the second flow opening for keeping the airflow flowing is higher than the height of the first flow opening for keeping the airflow flowing; and/or when the air flow of the second side wall facing away from the cavity needs to be guided to the side of the first side wall facing away from the cavity, the control part closes part of the first through opening and the second through opening, wherein the height of the first through opening for keeping the air flow in circulation is higher than that of the second through opening for keeping the air flow in circulation.

4. The airflow directing device of claim 2 further comprising a filter portion connected to the body or the control portion, the filter portion covering the first and/or second flow openings to purify the airflow.

5. The airflow directing device of claim 1 including a divider plate disposed in said cavity, said divider plate dividing said cavity into communicating first and second subchambers.

6. The airflow directing device of claim 5 wherein a gap is formed between at least part of the structure of the perimeter-wise edge of the partition plate and the corresponding inner wall of the cavity, the first and second subchambers communicating through the gap; and/or, a first through hole is formed in the partition plate, and the first sub-cavity and the second sub-cavity are communicated through the first through hole.

7. The airflow directing device of claim 5 wherein said divider is made of a filtering material; or, the filter plate is made of a light-transmitting material.

8. The airflow directing device of claim 5 wherein said divider is rotatably disposed within said cavity; and/or the spacing plate is slidingly arranged in the cavity.

9. The airflow directing device of claim 1, comprising a plurality of flow guides disposed within the cavity, the plurality of flow guides being spaced apart along a one-dimensional direction in a plane parallel to the first or second side wall.

10. The airflow directing device of claim 9 wherein a plurality of said flow guides are spaced apart along the height of said cavity, said flow guides having surfaces adapted to block airflow from the bottom of said cavity.

11. The airflow directing device of claim 9 wherein said plurality of deflectors are rotatably disposed within said cavity; and/or the plurality of flow guide pieces are arranged in the cavity in a sliding manner so as to adjust the distance between two adjacent flow guide pieces.

12. The airflow directing device of claim 9 wherein said baffle member has a second through hole formed therein.

13. An airflow directing device according to claim 9, wherein said deflector is made of a filtering material, or alternatively, said deflector is made of a light transmitting material.

14. An airflow directing device according to any one of claims 1 to 13 wherein the first side wall is made of a light-transmissive material; and/or the second side wall is made of a light-transmitting material.

15. An airflow guide according to any one of claims 1 to 13, wherein the airflow guide is a window for natural exchange of air inside and outside the window.

16. An airflow directing device according to any of claims 1-13, wherein the airflow directing device is a prefabricated part or is assembled from a construction site.

17. An airflow directing device, comprising a main body structure having an indoor space, and the airflow directing device of any one of claims 1 to 16, disposed on the main body structure for naturally exchanging air indoors and outdoors of the main body structure.

18. The airflow directing apparatus of claim 17 wherein the airflow directing device is a construction facility or a vehicle.

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