CN111380137A - Air mixing device - Google Patents
Air mixing device Download PDFInfo
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- CN111380137A CN111380137A CN201811625548.XA CN201811625548A CN111380137A CN 111380137 A CN111380137 A CN 111380137A CN 201811625548 A CN201811625548 A CN 201811625548A CN 111380137 A CN111380137 A CN 111380137A
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- Prior art keywords
- air
- indoor
- outdoor
- mixing device
- intake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present disclosure provides a wind mixing device, including: a frame constituting the housing; an outdoor air inlet which is arranged on the frame body and is used for allowing outdoor air to enter the frame body; the indoor air inlet is arranged on the frame body and used for allowing indoor air to enter the frame body; an indoor air outlet which is arranged on the frame body and used for blowing the air in the frame body into the room; a mixing part which is arranged in the frame body and mixes the air sucked from the outdoor air inlet and the air sucked from the indoor air inlet; a connecting part arranged at the indoor air outlet and connected with an air supply device arranged outside the frame body; a pretreatment unit provided upstream of the mixing unit, the pretreatment unit including: a plurality of outdoor air inlet wind paths for dividing the air sucked from the outdoor air inlet; a plurality of indoor air inlet paths which divide the air sucked from the indoor air inlet and are independent with the outdoor air inlet paths; the mixing outlet is formed in a state where the downstream end openings of the plurality of outdoor intake air passages and the downstream end openings of the plurality of indoor intake air passages are stacked on each other and faces the mixer.
Description
Technical Field
The present disclosure relates to a wind mixing device.
Background
In some indoor environments, the air quality is poor due to poor ventilation and high content of harmful substances such as inhalable particles, ozone, carbon monoxide and the like. In order to solve this problem, air supply products capable of sucking fresh air from the outside are available on the market. However, in cold regions such as northeast of China, the outdoor temperature is sometimes as low as minus 20 ℃, so that the air supply products can introduce fresh air from the outside and simultaneously carry out internal circulation on indoor air, so that the temperature of the air blown into the room is not too low. For example, the air blower disclosed in patent application publication No. CN 106016481 a. As shown in fig. 1, a fan 12, a first filter 13 and a second filter 14 are provided inside the air supply device, and under the action of the fan 12, the indoor air and the outdoor air are mixed inside the air supply device to form mixed air, and the mixed air flows into the room after passing through the first filter 13 and the second filter 14.
The outdoor air and the indoor air having the temperature difference may be mixed in the blower device to cause dew condensation. Condensation is a phenomenon in which, when the water vapor in the air reaches a saturated state, the water vapor that is too saturated in the air begins to condense into water and precipitates as the ambient temperature continues to decrease. The critical temperature point at which water vapor in the air starts to condense is called the dew point temperature, and when the air temperature is equal to or lower than the dew point temperature, the air undergoes condensation. In other words, the air having a relatively high temperature can originally contain a large amount of water vapor, but when the air meets the air having a relatively low temperature, the air having a relatively high temperature lowers in temperature, and the water vapor that can be contained lowers, and therefore, the water vapor may condense into water to precipitate and form dew condensation. If the temperature is too low, frost will form. Once the mixed air is condensed on the filter screen or the fan, the filter screen loses the function of filtering the air, and the fan is damaged.
Disclosure of Invention
In view of the above-described problems, an object of the present disclosure is to provide a wind mixing device that can suppress dew condensation.
In order to achieve the purpose, the technical scheme adopted by the disclosure is as follows:
according to an aspect of the present disclosure, there is provided a wind mixing device including:
a frame constituting the housing;
the outdoor air inlet is arranged on the frame body and used for allowing outdoor air to enter the frame body;
the indoor air inlet is arranged on the frame body and used for allowing indoor air to enter the frame body;
an indoor side air outlet which is arranged on the frame body and used for blowing the air in the frame body into the room;
a mixing part which is arranged in the frame body and mixes the air sucked from the outdoor air inlet and the air sucked from the indoor air inlet;
a connecting part arranged at the indoor side air outlet and connected with an air supply device arranged outside the frame body;
a pretreatment section provided upstream of the mixing section;
the pretreatment section includes:
a plurality of outdoor intake air paths for dividing the air sucked from the outdoor air inlet;
a plurality of indoor intake air paths which divide the air sucked from the indoor air inlet and are independent of the outdoor intake air path;
and a mixing outlet formed in a state in which downstream end openings of the plurality of outdoor intake air passages and downstream end openings of the plurality of indoor intake air passages are stacked on each other and facing the mixer.
In some embodiments of the present disclosure, the plurality of indoor intake air paths and the plurality of outdoor intake air paths are formed in a stacked state.
In some embodiments of the present disclosure, the preprocessing section, which forms a substantially rectangular parallelepiped shape, further includes: an upstream end opening of the outdoor intake air passage formed in one surface of the substantially rectangular parallelepiped shape; an upstream end opening of the indoor intake air passage formed on an adjacent surface adjacent to the one surface; the mixing outlet is formed on an opposing face opposing the one face.
In some embodiments of the present disclosure, the preprocessing unit is formed by stacking and combining a plurality of dividing units, and the dividing units include: in the mounted state of the air mixing device,
a partition plate provided in a direction from an upstream end opening of the outdoor air intake passage toward the mixing outlet;
an upper protrusion protruding upward from the upper surface of the partition plate, facing the upstream end opening of the indoor air intake passage, and extending toward the mixing outlet;
a lower protrusion protruding downward from a lower surface of the partition plate, facing the upstream end opening of the indoor air intake passage, and extending toward the mixing outlet;
an upper extension part extending from the top end of the upper protruding part to the mixing air outlet to form a flat plate shape;
and the lower protruding part extends from the top end of the lower protruding part to the mixing air outlet to form a flat lower extending part.
In some embodiments of the present disclosure, in an installed state of the air mixing device, the indoor intake air passage is formed between the upper extension and the lower extension in a single divided unit; the upper part of the upper extending part and the upper part of the dividing plate and the lower part of the lower extending part and the lower part of the dividing plate form the outdoor air inlet passage.
In certain embodiments of the present disclosure, the dividing unit is made of a heat insulating material.
In some embodiments of the present disclosure, the upper protruding portion and the lower protruding portion are respectively formed in an arc shape that is curved toward the mixing outlet from an upstream end opening of the indoor intake air passage in an opposite direction.
In some embodiments of the present disclosure, in an installation state of the air mixing device, an upper surface of the extending portion and an upper surface of the partition plate are provided with a first air guiding rib extending from an upstream end opening of the outdoor air intake passage to the mixing outlet.
In some embodiments of the present disclosure, in an installation state of the air mixing device, a lower surface of the lower extension and a lower surface of the partition plate are provided with a second air guiding rib extending from an upstream end opening of the outdoor air intake passage to the mixing outlet.
In some embodiments of the present disclosure, in the mounted state of the wind mixing device,
the upper protruding part is obliquely arranged from the end part of the upper surface of the dividing plate to the mixed air outlet side;
the lower protrusion is provided to be inclined from an end of a lower surface of the partition plate toward the mixing outlet.
In some embodiments of the present disclosure, in the mounted state of the wind mixing device,
the upper extension portion is inclined downward from an upstream end opening side of the indoor air intake passage to an opposite side thereof;
the lower extension portion is inclined upward from an upstream end opening side of the indoor air intake passage to an opposite side thereof;
the downstream end opening of the indoor intake air passage is formed in a shape that gradually narrows from the upstream end opening side close to the indoor intake air passage toward the opposite side thereof.
In some embodiments of the present disclosure, in an installation state of the wind mixing device, the bottom surface of the wind mixing device located at the lowermost position is inclined downward from the periphery toward the center.
In some embodiments of the present disclosure, the bottom surface of the wind mixing device is centrally provided with a water absorbing material.
In some embodiments of the present disclosure, the connection portion is a joint disposed at the indoor side air outlet, and the joint is connected to the air supply device through a pipeline.
In some embodiments of the present disclosure, an outdoor air inlet valve capable of opening and closing the outdoor air inlet is disposed at the outdoor air inlet; an indoor air inlet valve capable of opening and closing the indoor air inlet is arranged at the indoor air inlet; the opening degree of the outdoor air inlet valve and the opening degree of the indoor air inlet valve can be adjusted.
According to the technical scheme, the air mixing device at least has the following beneficial effects: through the air mixing device, air enters the air mixing device for mixing treatment before entering the air supply device, so that condensation is effectively inhibited, and devices in the air supply device are protected from being damaged.
Drawings
Fig. 1 is a schematic structural diagram of a prior art blower.
Fig. 2 is a schematic structural diagram of a wind mixing device according to an embodiment of the disclosure.
Fig. 3 is a schematic view of an internal structure of the air mixing device according to the embodiment of the disclosure.
Fig. 4 is a schematic view of the structure of the preprocessing section in fig. 3.
FIG. 5 is a second schematic view of the pretreatment unit shown in FIG. 3.
Fig. 6 is a diagram of fluid analysis when cool air and warm air enter the air mixing device without any treatment and are mixed according to an embodiment of the disclosure.
Fig. 7 is a fluid analysis diagram illustrating the mixing of the cold air and the warm air after the cold air and the warm air enter the air mixing device and are processed by the preprocessing unit according to the embodiment of the disclosure.
Fig. 8 is a schematic structural view of an upper portion of the division unit of fig. 4.
Fig. 9 is a schematic structural view of a lower portion of the segmentation unit in fig. 4.
Fig. 10 is a schematic structural view of an upper portion of the division unit of fig. 5.
Fig. 11 is a schematic structural view of a lower portion of the segmentation unit in fig. 5.
Fig. 12 is a schematic cross-sectional view of fig. 8 taken along the a-B direction.
Fig. 13 is a bottom view of the wind mixing device according to the embodiment of the present disclosure.
[ Main element ]
[ Prior Art ]
12-a fan;
13-a first filter;
14-a second filter screen;
[ disclosure ]
1-a frame body;
11-a bottom surface;
2-outdoor air inlet;
3-indoor air inlet;
4-indoor air outlet;
5-a mixing section;
6-a connecting part;
7-a pretreatment part;
71-outdoor air inlet air path;
711-upstream end opening of outdoor intake air path;
72-indoor intake air path;
721-upstream end opening of indoor intake air passage;
73-a mixing air outlet;
712-downstream end opening of outdoor intake air path;
722-downstream end opening of indoor intake air passage;
70-a segmentation unit;
701-dividing the plate;
702 — an upper projection;
703-a lower projection;
704-upper extension part;
705-lower extension;
706-a first air guiding rib;
707-a second air guiding rib;
8-outdoor air inlet valve;
9-indoor air inlet valve;
10-water absorbing material.
Detailed Description
For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
In the present embodiment, a wind mixing device is provided. As shown in fig. 2 and 3, the air mixing device of the present embodiment includes: frame 1, outdoor air intake 2, indoor air intake 3, indoor side air outlet 4, mixing portion 5, connecting portion 6, pretreatment portion 7.
The frame 1 is box-shaped and forms a housing of the air mixing device, and the frame 1 includes a top surface, a bottom surface 11 and a plurality of side surfaces.
The outdoor air inlet 2 is arranged on one side surface of the frame body 1 and is used for allowing outdoor air to enter the frame body 1.
The indoor air inlet 3 is arranged on the adjacent side surface of the frame body 1 adjacent to the side surface, and indoor air enters the frame body 1.
The indoor side outlet 4 is provided on an opposite side surface of the frame 1 opposite to the one side surface, and blows out air in the frame 1 into the room.
The mixing part 5 is provided inside the housing 1, and provides a space for mixing air sucked from the outdoor intake port 2 and air sucked from the indoor intake port 3.
The connection portion 6 is disposed at the indoor side air outlet 4 and connected to an air supply device with a fan disposed outside the frame body 1, for example, the connection portion 6 is a joint, and the joint is connected to the air supply device through a pipe.
The pretreatment unit 7 is provided upstream of the mixing unit 5, and as shown in fig. 4 and 5, the pretreatment unit 7 includes: outdoor intake air passage 71 and indoor intake air passage 72. The outdoor intake air passage 71 is provided in plural for dividing the air sucked from the outdoor air intake 2. The indoor intake air passage 72 is provided in plural for dividing the air taken in from the indoor air intake 3. The outdoor intake air passage 71 and the indoor intake air passage 72 are independent of each other.
As shown in fig. 2 to 5, the pretreatment unit 7 is formed in a substantially rectangular parallelepiped shape, and includes: an upstream end opening 711 of the outdoor air intake passage formed on one surface of the substantially rectangular parallelepiped shape, an upstream end opening 721 of the indoor air intake passage formed on an adjacent surface adjacent to the one surface, and a mixing outlet 73 formed on an opposite surface opposite to the one surface. The mixing outlet 73 faces the mixer 5, and is formed in a state in which the downstream end openings 712 of the plurality of outdoor intake air flow paths 71 and the downstream end openings 722 of the plurality of indoor intake air flow paths 72 are stacked on each other.
In the present embodiment, air enters the air mixing device from the outdoor intake port 2 and the indoor intake port 3, respectively, and then enters the pre-processing unit 7 through the upstream end opening 711 of the outdoor intake air passage and the upstream end opening 721 of the indoor intake air passage, by the fan of the blower connected to the air mixing device.
Before explaining the operation principle of the air mixing device of the present embodiment in detail, the content of water vapor that can be contained in the air will be explained first. As described in the background, the lower the air temperature, the less water vapor can be contained in the air. The different temperatures of the air and their corresponding saturated water vapor contents are shown in the table below.
When the air sucked from the outdoor air intake 2 and the air sucked from the indoor air intake 3 contact each other, the temperature of the air (hereinafter, simply referred to as "cold air") having a lower temperature rises due to heat transfer, and the amount of water vapor that can be contained therein increases; and the air at a higher temperature (hereinafter simply referred to as "warm air") is lowered in temperature, and it can contain less water vapor. If the temperature of the warm air drops to the dew point of the warm air, dew condensation of the warm air occurs. Therefore, if the temperature of the cool air is originally higher than the dew point of the warm air, the temperature of the warm air does not drop to the dew point even if the warm air and the cool air contact each other, and in this case, the mixed air of the warm air and the cool air does not dew even if no treatment is performed.
On the other hand, when the cold air temperature is equal to or lower than the dew point of the warm air, the ratio of the cold air to the warm air can be adjusted to suppress dew condensation, for example, by setting the ratio of the cold air sucked from the outdoor air inlet 2 to the warm air sucked from the indoor air inlet 3 to 4:6, so that the saturated water vapor content corresponding to the temperature of the mixed air in which the cold air and the warm air are mixed can be made larger than the total amount of water vapor originally contained in the cold air and the warm air.
However, fig. 6 is a fluid analysis diagram when cold air and warm air are introduced into the air mixing device without any treatment and mixed. As can be seen from the schematic structural diagrams of fig. 4 and 5 and the flow analysis diagram of fig. 6, if the cold air a (white portion shown) and the warm air B (black portion shown) enter the air mixing device without any treatment, the cold air and the warm air are mixed only in the portion where the cold air a and the warm air B are in contact, and the ratio of the cold air to the warm air in the mixed air C (gray portion shown) is substantially the same, rather than being mixed at a ratio of 4: 6. Therefore, the temperature of the mixed air C is too low, resulting in a saturated water vapor content that is less than the total amount of water vapor that the cold air and the warm air originally contain. That is, the mixed air still causes dew condensation.
Therefore, with the air mixing device of the present invention, the pretreatment unit 7 treats the sucked outdoor air and indoor air, and both the outdoor air and the indoor air are blown out from the mixing outlet 73 and then enter the mixing unit 5 to be mixed.
Fig. 7 is a fluid analysis diagram showing the case where cold air and warm air are mixed after being treated by the pretreatment unit 7 in the air mixing device. As shown in the schematic configuration diagrams of fig. 4 and 5 and the flow analysis diagram of fig. 7, the plurality of outdoor intake air paths 71 and the plurality of indoor intake air paths 72 stacked on each other constitute a plurality of sets of mixed air paths, the plurality of outdoor intake air paths 71 of the pre-conditioner 7 into which the cool air a enters the pre-conditioner 7 from the upstream end opening 711 of the outdoor intake air path are divided into equal parts, and the plurality of indoor intake air paths 72 of the pre-conditioner 7 into which the warm air B enters the pre-conditioner 7 from the upstream end opening 721 of the indoor intake air paths are divided into equal parts. If the ratio of the cool air entering from the outdoor air inlet 2 to the warm air entering from the indoor air inlet 3 is 4:6, the ratio of the cool air to the warm air in the adjacent set of the outdoor air intake passage 71 and the indoor air intake passage 72 is also 4: 6. The mixed air C is high in temperature, has a saturated water vapor content greater than or equal to the total amount of water vapor originally contained in the cold air and the warm air, and does not precipitate from the mixed air, thereby effectively suppressing the occurrence of condensation. Of course, the indoor air intake passages 72 and the outdoor air intake passages 71 do not necessarily have to be formed in a stacked state, and the cool air and the warm air may be divided into equal parts and stacked before being mixed in the mixer 5. That is, the downstream end openings 712 of the outdoor air-intake air passages 71 and the downstream end openings 722 of the indoor air-intake air passages 72 may be formed in a stacked state.
And the interior of the air mixing device is not provided with a filter component or a fan. Even if a small amount of dew condensation exists in the air mixing device, the dew condensation can be remained in the air mixing device, and a filter component and a fan in the air supply device cannot be damaged.
Through the structure, the condensation can be effectively inhibited, and devices in the air supply device are protected from being damaged.
Since the upstream end opening 711 of the outdoor air intake duct is formed on one surface of a substantially rectangular parallelepiped shape, the upstream end opening 721 of the indoor air intake duct is formed on an adjacent surface adjacent to the one surface, and the mixing outlet 73 is formed on an opposite surface facing the one surface, the air enters the pretreatment unit 7 from the upstream end opening 711 of the outdoor air intake duct and is directly blown out toward the mixing outlet 73 facing the pretreatment unit; the air enters the pre-treatment section 7 from the upstream end opening 721 of the indoor air intake duct and turns around to be blown out toward the mixing outlet 73. The upstream end opening 711 of the outdoor intake air passage and the upstream end opening 721 of the indoor intake air passage are located on different surfaces of the front processing unit 7, and thus the outdoor intake port 2 facing the upstream end opening 711 of the outdoor intake air passage and the indoor intake port 3 facing the upstream end opening 721 of the indoor intake air passage are located on different surfaces of the frame. Because the user is outdoor and indoor set up with outdoor air intake 2 and indoor air intake 3 when the opening of being connected, often can be located the different directions of mixing the wind device and set up outdoor opening and indoor opening, consequently through above-mentioned structure, the pipeline of connecting outdoor opening and mixing the wind device and connecting indoor opening and mixing the wind device can reduce and buckle, is convenient for the user to carry out the pipe arrangement.
As shown in fig. 8, 9, and 12, the preprocessing unit 7 is formed by laminating a plurality of dividing units 70, and each of the dividing units 70 includes: a partition plate 701 provided from an upstream end opening 711 of the outdoor air intake passage toward the mixing outlet 73 in a mounted state of the air mixing device; an upper protrusion 702 protruding upward from the upper surface of the partition plate 701, facing the upstream end opening 721 of the indoor air intake passage, and extending toward the mixing outlet 73; a lower protrusion 703 protruding downward from the lower surface of the partition plate 701, facing the upstream end opening 721 of the indoor air intake passage, and extending toward the mixing outlet 73; an upper extension 704 extending from the top end of the upper protrusion 702 toward the mixing outlet 73 and forming a flat plate; the lower protrusion 703 extends from the tip end thereof to the mixing outlet 73, and forms a flat plate-like lower extension 705.
In the mounted state of the air mixing device, in the single divided unit 70, the space between the upper extension 704 and the lower extension 705 forms the indoor intake air passage 72, and the upper side of the upper extension 704 and the dividing plate 701 and the lower side of the lower extension 705 and the dividing plate 701 form the outdoor intake air passage 71. That is, in the front processing unit 7, the indoor intake air passage 72 and the outdoor intake air passage 71 are separated from each other by the extension 704, the extension 705, and the partition plate 701, and the cool air and the warm air are not mixed with each other before entering the mixing unit 5. In this way, by providing the pre-processing unit 7 in which a plurality of the split units 70 are stacked and combined, a plurality of independent sets of the indoor intake air passage 72 and the outdoor intake air passage 71 are formed.
In the present embodiment, the split unit 70 is made of a heat insulating material, the indoor intake air passage 72 and the outdoor intake air passage 71 are split by a heat insulating material such as a foam material to form the split unit 70, and heat transfer between the warm air and the cool air separated by the upper extension 704, the lower extension 705, and the split plate 701 of the split unit 70 is prevented before reaching the mixing portion 5, and the warm air temperature is prevented from being lowered to a dew point or less by the heat transfer, thereby suppressing dew condensation.
The upper protrusion 702 and the lower protrusion 703 are each formed in an arc shape curved toward the mixing outlet 73 from the upstream end opening 721 of the indoor air intake passage in the opposite direction. With the above configuration, the indoor intake air passage 72 is formed in an arc shape curved from the upstream end opening 721 of the indoor intake air passage to the mixing outlet 73, and the indoor air flows along the arc-shaped indoor intake air passage 72 to the mixing outlet 73, so that the pressure loss during air flow can be reduced, and the air volume can be increased.
As shown in fig. 10 and 11, in the mounted state of the air mixing device, the upper surface of the upper extension 704 and the upper surface of the partition plate 701 are provided with a first air guiding rib 706 extending from the upstream end opening 711 of the outdoor air intake passage to the mixing outlet 73, and the lower surface of the lower extension 705 and the lower surface of the partition plate 701 are provided with a second air guiding rib 707 extending from the upstream end opening 711 of the outdoor air intake passage to the mixing outlet 73. With the above configuration, when the outdoor air is blown out from the upstream end opening 711 of the outdoor air-intake duct to the mixed air outlet 73, the first air-guide rib 706 and the second air-guide rib 707 perform a role of flow regulation, that is, a turbulent flow generated when the air flows is reduced, pressure loss is reduced, and the air volume is increased. And on the other hand, the first and second wind guiding ribs can enhance the strength of the upper and lower extending portions and the partition plate 701, and prevent the upper and lower extending portions and the partition plate 701 from being deformed.
As shown in fig. 8 and 9, in the mounted state of the air mixing device, the upper protrusion 702 is inclined from the upper surface end of the partition plate 701 toward the mixed air outlet 73 side, and the lower protrusion 703 is inclined from the lower surface end of the partition plate 701 toward the mixed air outlet 73 side. With the above configuration, when air is blown out from the upstream end opening 711 of the outdoor air intake duct to the mixing outlet 73 along the partition plate 701, the upper and lower protrusions, and the upper and lower extensions, the air can flow more smoothly to the mixing outlet 73 by being guided by the upper protrusion 702 and the lower protrusion 703 inclined toward the mixing outlet 73 side, thereby reducing wind resistance and pressure loss and ensuring the air volume.
As shown in fig. 10 and 11, in the mounted state of the air mixing device, the upper extension 704 is inclined downward from the upstream end opening 721 side of the indoor air intake passage to the opposite side; the lower extension 705 is inclined upward from the upstream end opening 721 side of the indoor air intake passage to the opposite side; the downstream end opening 722 of the indoor intake air passage is formed in a shape gradually narrowing from the upstream end opening 721 side close to the indoor intake air passage toward the opposite side thereof. If the upper extension 704 and the lower extension 705 are disposed parallel to each other, when the indoor air flows from the upstream end opening 721 of the indoor air intake passage to the downstream end opening 722 of the indoor air intake passage, most of the air flows against the arc-shaped upper protrusion 702 and the arc-shaped lower protrusion 703 after colliding with the upper protrusion 702 and the lower protrusion 703, and then flows out from the side of the downstream end opening 722 of the indoor air intake passage away from the upstream end opening 721 of the indoor air intake passage (i.e., the side opposite to the upstream end opening 721 of the indoor air intake passage).
By forming the downstream end opening 722 of the indoor intake air passage in a shape that gradually narrows from the side closer to the upstream end opening 721 of the indoor intake air passage to the side opposite to the upstream end opening 721 of the indoor intake air passage, the wind resistance on the side of the downstream end opening 722 of the indoor intake air passage away from the upstream end opening 721 of the indoor intake air passage is increased, more wind is forced to flow out from the side of the downstream end opening 722 of the indoor intake air passage closer to the upstream end opening 721 of the indoor intake air passage, and the wind distribution of the indoor intake air passage 72 blown out from the downstream end opening 722 of the indoor intake air passage is made more uniform. In this way, the indoor air flowing out of the downstream end opening 722 of the indoor intake air passage and the outdoor air flowing out of the downstream end opening 712 of the outdoor intake air passage can be mixed more uniformly.
As shown in fig. 13, a water absorbing material 10 is provided at the center of the bottom surface 11 of the housing 1, and the bottom surface 11 of the housing 1 is inclined downward from the periphery toward the center in the mounted state of the air mixing device. Through the structure, even if a small amount of dew condensation water is generated in the air mixing device, the dew condensation water can flow to the center along the bottom surface 11 which inclines to the center and downwards and is absorbed by the water absorbing material 10 on the center of the bottom surface 11, and the water in the water absorbing material 10 can be dried through the flow of warm air.
The upper extension 704 is inclined downward from the upstream end opening 721 side of the indoor air intake passage toward the opposite side; the lower extension 705 is inclined upward from the upstream end opening 721 side of the indoor air intake passage to the opposite side; even if dew condensation occurs on the upper extension portion 704 or the lower extension portion 705, the dew condensation flows down along the inclined upper extension portion 704 or the lower extension portion 705 to the bottom surface 11 of the housing 1, and is absorbed by the water absorbent material 10 on the bottom surface 11.
As shown in fig. 2, an outdoor air inlet valve 8 capable of opening and closing the outdoor air inlet 2 is disposed at the outdoor air inlet 2, an indoor air inlet valve 9 capable of opening and closing the indoor air inlet 3 is disposed at the indoor air inlet 3, and the opening degrees of the outdoor air inlet valve 8 and the indoor air inlet valve 9 can be adjusted by a control unit disposed in the air mixing device. The control part adjusts the proportion of air entering the air mixing device from the outdoor air inlet 2 and the indoor air inlet 3 by adjusting the opening degrees of the outdoor air inlet valve 8 and the indoor air inlet valve 9 according to the outdoor temperature and the indoor temperature and humidity. Through the structure, under the action of the fan of the air supply device, air respectively enters the air mixing device from the outdoor air inlet 2 and the indoor air inlet 3 according to the proportion set by the control part. And then enters the pre-processor 7 through the upstream end opening 711 of the outdoor air-intake passage and the upstream end opening 721 of the indoor air-intake passage.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize that the heating and ventilating fan of the present disclosure is applicable.
It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail.
It is also noted that the illustrations herein may provide examples of parameters that include particular values, but that these parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error tolerances or design constraints. Directional phrases used in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., refer only to the direction of the attached drawings and are not intended to limit the scope of the present disclosure. In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.
It should be noted that throughout the drawings, like elements are represented by like or similar reference numerals. In the following description, some specific embodiments are for illustrative purposes only and should not be construed as limiting the disclosure in any way, but merely as exemplifications of embodiments of the disclosure. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure. It should be noted that the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (15)
1. A wind mixing device is characterized in that: the method comprises the following steps:
a frame constituting the housing;
the outdoor air inlet is arranged on the frame body and used for allowing outdoor air to enter the frame body;
the indoor air inlet is arranged on the frame body and used for allowing indoor air to enter the frame body;
an indoor side air outlet which is arranged on the frame body and used for blowing the air in the frame body into the room;
a mixing part which is arranged in the frame body and mixes the air sucked from the outdoor air inlet and the air sucked from the indoor air inlet;
a connecting part arranged at the indoor side air outlet and connected with an air supply device arranged outside the frame body;
a pretreatment section provided upstream of the mixing section;
the pretreatment section includes:
a plurality of outdoor intake air paths for dividing the air sucked from the outdoor air inlet;
a plurality of indoor intake air paths which divide the air sucked from the indoor air inlet and are independent of the outdoor intake air path;
and a mixing outlet formed in a state in which downstream end openings of the plurality of outdoor intake air passages and downstream end openings of the plurality of indoor intake air passages are stacked on each other and facing the mixer.
2. The air mixing device of claim 1, wherein: the plurality of indoor intake air passages and the plurality of outdoor intake air passages are formed in a stacked state.
3. The air mixing device of claim 2, wherein: the pretreatment unit is formed in a substantially rectangular parallelepiped shape, and further includes:
an upstream end opening of the outdoor intake air passage formed in one surface of the substantially rectangular parallelepiped shape;
an upstream end opening of the indoor intake air passage formed on an adjacent surface adjacent to the one surface;
the mixing outlet is formed on an opposing face opposing the one face.
4. The air mixing device of claim 3, wherein: the pretreatment unit is formed by laminating and combining a plurality of dividing units, and each dividing unit comprises: in the mounted state of the air mixing device,
a partition plate provided in a direction from an upstream end opening of the outdoor air intake passage toward the mixing outlet;
an upper protrusion protruding upward from the upper surface of the partition plate, facing the upstream end opening of the indoor air intake passage, and extending toward the mixing outlet;
a lower protrusion protruding downward from a lower surface of the partition plate, facing the upstream end opening of the indoor air intake passage, and extending toward the mixing outlet;
an upper extension part extending from the top end of the upper protruding part to the mixing air outlet to form a flat plate shape;
and the lower protruding part extends from the top end of the lower protruding part to the mixing air outlet to form a flat lower extending part.
5. The air mixing device of claim 4, wherein: in the mounted state of the wind mixing device, in a single divided unit,
the indoor air inlet air path is formed between the upper extending part and the lower extending part;
the upper part of the upper extending part and the upper part of the dividing plate and the lower part of the lower extending part and the lower part of the dividing plate form the outdoor air inlet passage.
6. The air mixing device of claim 5, wherein: the dividing unit is made of a heat insulating material.
7. The air mixing device of claim 5, wherein: the upper protrusion and the lower protrusion are formed in arc shapes that are curved toward the mixing outlet from the upstream end opening of the indoor air intake passage in the opposite direction.
8. The air mixing device of claim 5, wherein: in a mounted state of the air mixing device, a first air guiding rib extending from an upstream end opening of the outdoor air intake passage to the mixing outlet is provided on an upper surface of the extending portion and an upper surface of the partition plate.
9. The air mixing device of claim 8, wherein: in a mounted state of the air mixing device, a second air guiding rib extending from an upstream end opening of the outdoor air intake passage to the mixing outlet is provided on a lower surface of the extension portion and a lower surface of the partition plate.
10. The air mixing device of claim 5, wherein: in the mounted state of the air mixing device,
the upper protruding part is obliquely arranged from the end part of the upper surface of the dividing plate to the mixed air outlet side;
the lower protrusion is provided to be inclined from an end of a lower surface of the partition plate toward the mixing outlet.
11. The air mixing device of claim 5, wherein: in the mounted state of the air mixing device,
the upper extension portion is inclined downward from an upstream end opening side of the indoor air intake passage to an opposite side thereof;
the lower extension portion is inclined upward from an upstream end opening side of the indoor air intake passage to an opposite side thereof;
the downstream end opening of the indoor intake air passage is formed in a shape that gradually narrows from the upstream end opening side close to the indoor intake air passage toward the opposite side thereof.
12. The air mixing device of claim 1, wherein: in the mounted state of the air mixing device, the bottom surface of the air mixing device positioned at the lowest part inclines downwards from the periphery to the center.
13. The air mixing device of claim 11, wherein: and a water absorbing material is arranged in the center of the bottom surface of the air mixing device.
14. The air mixing device of claim 1, wherein: the connecting part is a joint arranged at the air outlet at the indoor side, and the joint is connected with the air supply device through a pipeline.
15. The air mixing device of claim 1, wherein:
an outdoor air inlet valve capable of opening and closing the outdoor air inlet is arranged at the outdoor air inlet;
an indoor air inlet valve capable of opening and closing the indoor air inlet is arranged at the indoor air inlet;
the opening degree of the outdoor air inlet valve and the opening degree of the indoor air inlet valve can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625548.XA CN111380137B (en) | 2018-12-28 | 2018-12-28 | Air mixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625548.XA CN111380137B (en) | 2018-12-28 | 2018-12-28 | Air mixing device |
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| CN111380137A true CN111380137A (en) | 2020-07-07 |
| CN111380137B CN111380137B (en) | 2022-09-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001088532A (en) * | 1999-09-20 | 2001-04-03 | Denso Corp | Air conditioner for vehicle |
| CN101603710A (en) * | 2009-07-23 | 2009-12-16 | 芜湖博耐尔汽车电气系统有限公司 | A kind of motorcar air conditioner |
| CN101858619A (en) * | 2009-04-13 | 2010-10-13 | 木村工机株式会社 | Heating and cooling unit and heating and cooling device |
| CN204787130U (en) * | 2015-06-01 | 2015-11-18 | Tcl空调器(中山)有限公司 | Aviation baffle, air conditioner and air conditioner |
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2018
- 2018-12-28 CN CN201811625548.XA patent/CN111380137B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001088532A (en) * | 1999-09-20 | 2001-04-03 | Denso Corp | Air conditioner for vehicle |
| CN101858619A (en) * | 2009-04-13 | 2010-10-13 | 木村工机株式会社 | Heating and cooling unit and heating and cooling device |
| CN101603710A (en) * | 2009-07-23 | 2009-12-16 | 芜湖博耐尔汽车电气系统有限公司 | A kind of motorcar air conditioner |
| CN204787130U (en) * | 2015-06-01 | 2015-11-18 | Tcl空调器(中山)有限公司 | Aviation baffle, air conditioner and air conditioner |
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| Publication number | Publication date |
|---|---|
| CN111380137B (en) | 2022-09-30 |
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