KR102250975B1 - Air circulator with bypass function of heat exchanger and indoor air flow switching - Google Patents

Abstract

The present invention relates to an air circulator capable of a heat exchanger bypass function and indoor air flow switching. More specifically, a bypass space is placed inside a heat exchanger to turn on and off a damper to minimize heat exchanging in spring and autumn which is a non-air conditioning season and to perform rapid ventilation to improve indoor air quality (carbon dioxide, odor, and dust removal) to form a comfortable indoor environment. Furthermore, a constant pressure loss is reduced, and also an external air cooling function can be performed.

Description

Air circulator with bypass function of heat exchanger and indoor air flow switching}

The present invention relates to an air circulator capable of bypassing a heat exchanger and converting indoor airflow, and more particularly, by placing a bypass space inside the heat exchanger to turn on and off a damper depending on the purpose. Improved heat exchanger to create a pleasant indoor environment by improving indoor air quality (removal of carbon dioxide, odors, dust, etc.) by minimizing heat exchange and allowing quick ventilation, and further reducing static pressure loss and performing outside air cooling functions. It relates to an air circulator capable of bypass function and indoor airflow conversion.

In general, an air circulator refers to a device used to control a certain space with a temperature, humidity, and airflow distribution suitable for human activities and to remove dust from the air at the same time.

Usually, the indoor temperature that a person feels pleasantly is due to their senses, so it may be different depending on the person, but in the summer, the difference in temperature from the outside air is about 5-6℃, the indoor temperature 25-29℃, and the humidity 50-70% It is known that indoor temperature of 18~21℃ and humidity of 55~70% are most appropriate in winter.

The basic and main function of such an air circulator (waste heat recovery ventilator) is to ventilate indoor and outdoor air, and to recover the heat energy of the air wasted during ventilation, and to improve indoor air quality by discarding indoor air and introducing fresh outdoor air. do.

However, recently, a lot of fine dust appears in the outside air, so the existing filter cannot filter out all the fine dust, so the ultrafine dust is introduced into the room as it is.

In order to solve this problem, a high-functional filter such as a medium filter is additionally installed to solve some of the problems.

However, in the case of a filter that filters even fine dust, since it has a more compact structure than the existing pre-filter, a lot of differential pressure occurs when air passes through it.

Accordingly, there is a case where only a medium filter is used to reduce the differential pressure. In this case, there is a problem that the service life is shortened due to rapid contamination due to relatively large particles of dust.

As described above, when a large amount of differential pressure is generated due to clogging of the filter, the power consumption of the blower increases, and noise due to the pressure also increases.

On the other hand, due to the problem of fine dust, living or activities are increasing indoors. Accordingly, it is important to block fine dust from the outside air, but it is also important to quickly discharge carbon dioxide, odor, dust, etc. from indoor activities to the outside. The external air circulatory air circulator has a better effect on the health of life than the circulating air purifier.

Currently, there are many types of air circulators such as embedded ceiling type, floor mounted type, stand type, and window type.

The basic concept, the embedded ceiling type, is installed in the indoor ceiling, and air moves to the air outlet and the diffuser, which is an inlet connected by a duct.

In the case of a floor-mounted type or a stand type, it is exposed to the room, so it is limited in aesthetics and installation space, and noise is also transmitted well. In addition, since it is installed on one side, airflow is less distributed indoors than the ceiling embedded type, and it is blocked by obstacles. Because of this problem, the ceiling-embedded type is still preferred.

However, in the case of the embedded ceiling type, when an air circulator is installed, a supply air diffuser is installed on one side of the room, and a ventilation diffuser is installed on the other side to form airflow through supply/exhaust and ventilation. In other words, since the airflow is continuously discharged and inhaled from the diffuser fixed to the ceiling, even if the interior structure, use, or interior is changed, the direction of the airflow is maintained in some cases, making it difficult to form an airflow smoothly. do. Even in a fixed indoor structure, the location of the pollutant source may be different and may differ depending on the occupant's location.

Registration Office No. 0447885 Registered Patent No. 0562843

The present invention was created to solve the problems in the prior art as described above, and by placing a bypass space inside the heat exchanger to turn on and off the damper according to the use, heat exchange is performed during the non-air conditioning period in spring and autumn. Improved heat exchanger bypass to create a pleasant indoor environment by improving indoor air quality (removal of carbon dioxide, odors, dust, etc.) by minimizing and allowing rapid ventilation, further reducing static pressure loss, and performing outside air cooling functions. Its main purpose is to provide an air circulator capable of switching functions and indoor airflow.

The present invention is a means for achieving the above object, the enclosure (100); A heat exchanger 112 installed in the heat exchange chamber 110 in the center of the enclosure 100; The heat exchanger 112 includes an outdoor port (OA), an exhaust port (EA), an air supply port (SA) and a ventilation port (RA) respectively installed on both sides of the enclosure 100 with the heat exchanger 112 interposed therebetween, and the external port (OA) ) And the exhaust port (EA), and each of the air supply port (SA) and the ventilation port (RA) are formed to be separated from each other. In an air circulator designed to be supplied to the room through SA), the bet is introduced into the ventilation port RA, heat-exchanged through the heat exchanger 112, and then exhausted to the outside through the exhaust port EA; The heat exchanger 112 extends horizontally at both left and right vertices, and is then vertically bent at half of the length downward and upward, respectively, so that the first and second partition walls 122 and 124 vertically partition the heat exchange chamber 110. This is more formed; A bypass part 114 is further formed at one end of the heat exchanger 112, but the bypass part 114 minimizes heat exchange of the outside air introduced into the outside air outlet (OA) and is directly supplied to the air supply port (SA). An OA bypass duct 116 and an RA bypass duct 118 for minimizing heat exchange of the bet introduced into the ventilation port RA and directly exhausting it to the exhaust port EA; The OA bypass duct 116 is provided with an OA damper 116b that opens and closes the OA bypass duct 116 while being rotated by an OA damper motor 116a, and the RA bypass duct 118 has an RA damper. A heat exchanger bypass function and an air circulator capable of switching indoor airflow, characterized in that an RA damper 118b for opening and closing the RA bypass duct 118 is installed while being rotated by the motor 118a is provided.

At this time, the space between the ventilation port (RA) and the heat exchange chamber (110) becomes a ventilation introduction chamber (C2), and the space between the air supply port (SA) and the heat exchange chamber (110) becomes a supply air discharge chamber (C4). ; An extension chamber (EC) is further installed at one side of the ventilation introduction chamber (C2) and the supply air discharge chamber (C4); The extension chamber (EC) has an SA connection duct 210 connecting the supply air discharge chamber (C4) and the supply port (SA), and the RA connection duct 220 connecting the ventilation introduction chamber (C2) and the ventilation port (RA). Is further provided; The SA connection duct 210 and the RA connection duct 220 are cross-connected so as not to interfere with each other by first and second substitution ducts 212 and 222, respectively; A first replacement damper 214 that selectively opens and closes the first replacement duct 212 and the SA connection duct 210 while being rotated by 90° by a motor at one end of the first replacement duct 212 on the side of the SA connection duct 210 ) Is installed; A second replacement damper 224 that selectively opens and closes the second replacement duct 222 and the RA connection duct 220 while being rotated by 90° by a motor at one end of the second replacement duct 222 on the RA connection duct 220 side. ) Is also installed.

According to the present invention, the following effects can be obtained.

First, indoor ventilation can be made smoothly as a whole by converting one-way airflow in both directions.

Second, since the supply and exhaust sections are used alternately, it is possible to prevent dust from accumulating and accumulating in the duct or diffuser.

Third, it is possible to effectively suppress the growth of molds and bacteria according to the two-way ventilation.

Fourth, it is possible to increase the ventilation amount by bypassing the heat exchanger and reduce the conveyance power.

Fifth, there is an advantage in that a heat exchanger bypass can be selectively used when a large amount of external airflow is required due to an increase in indoor carbon dioxide or when it is necessary to quickly discharge indoor air due to generation of dust, odors, and gases.

1 to 3 are exemplary views of an air circulator according to the present invention.
4 to 5 are exemplary views showing the operation of the air circulator according to the present invention divided by state.

Hereinafter, a preferred embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

1 to 3, an air circulator capable of bypassing a heat exchanger and converting indoor airflow according to the present invention includes a housing 100.

The enclosure 100 is in the shape of a square box, and a heat exchange chamber 110 is formed in the center, and on both sides with the heat exchange chamber 110 interposed therebetween, an external port (OA), an exhaust port (EA), and a supply port (SA) And ventilation ports RA are formed, and each of the external ports OA and the exhaust ports EA, and each of the air supply ports SA and the ventilation ports RA are separated from each other by first and second partition walls W1 and W2.

In this case, a heat exchanger 112 is installed in the heat exchange chamber 110.

In this basic structure, the present invention is a structure that can change the direction of the air supply port SA and the ventilation port RA of the air circulator, and the air supply duct is converted into a ventilation port duct, and the ventilation port duct is converted into a supply port duct. The device and the blower are configured so that the flow path can be changed in a fixed state.

In this case, the channel change of the duct may be configured to change the direction of the air flow through the motor damper.

In this way, the present invention changes the existing one-way airflow in both directions, so that the overall ventilation of the room can be made completely. In addition, since the air supply and exhaust sections are used alternately, it is possible to prevent dust from accumulating and accumulating in the duct or diffuser, and is expected to be able to suppress the growth of mold and bacteria.

On the other hand, the space between the external opening (OA) and the heat exchange chamber 110 becomes an external airway introduction chamber (C1), and the space between the ventilation opening (RA) and the heat exchange chamber 110 becomes a ventilation introduction chamber (C2). , The space between the exhaust port EA and the heat exchange chamber 110 becomes an exhaust discharge chamber C3, and the space between the air supply port SA and the heat exchange chamber 110 becomes a supply air discharge chamber C4.

In addition, an exhaust fan FD is installed in the exhaust discharge chamber C3, and an air supply fan FS is installed in the air supply discharge chamber C4.

In addition, a replaceable external air pre-filter FT1 is incorporated in the external air introduction chamber C1, and a replaceable internal air pre-filter FT2 is embedded in the ventilation introduction chamber C2.

In addition, the heat exchanger 112 has the first and second partition walls extending horizontally at both left and right vertices and then vertically bending half of the length downward and upward, respectively, to partition the heat exchange chamber 110 up and down. 122,124) are further formed.

The first and second partition walls 122 and 124 are for separating the inlet air and the exhaust air so that they do not mix within the heat exchange chamber 110, and heat exchange between the inlet air and the exhaust air is performed only in the heat exchanger 112. Induce them to lose.

In addition, in the present invention, a bypass portion 114 is further formed in a form extending further at one end of the heat exchanger 112.

The bypass part 114 does not have a heat exchanger structure, but has a duct structure, and minimizes heat exchange of the outside air introduced into the outside air outlet (OA) and allows it to be directly supplied to the air supply port (SA). It includes an OA bypass duct 116 configured to relieve static pressure.

At this time, the OA bypass duct 116 is provided with an OA damper 116b that opens and closes the OA bypass duct 116 while being rotated by the OA damper motor 116a, as illustrated in FIG. 2.

In addition, the bypass unit 114 is an RA bypass configured to minimize heat exchange of the bet air introduced into the ventilation port RA and to be directly exhausted to the exhaust port EA to relieve static pressure applied to the heat exchanger 112 It includes a duct 118.

At this time, the RA bypass duct 118 is provided with an RA damper 118b that opens and closes the RA bypass duct 118 while being rotated by the RA damper motor 118a, as illustrated in FIG. 3.

In this case, the OA bypass duct 116 and the RA bypass duct 118 are cross-arranged so as not to interfere with each other.

Thus, when the bypass is not required, since the OA damper 116b and the RA damper 118b are closed, as shown in FIG. 1, the outside air introduced into the outside air outlet OA passes through the heat exchanger 112 and the air supply port SA The bet supplied to and introduced into the ventilation port RA is discharged to the exhaust port EA through the heat exchanger 112.

If it is necessary to bypass the external air introduced to relieve the static pressure, the OA damper motor 116a is rotated to open the OA damper 116b as illustrated in FIG. 2 to open the OA bypass duct 116.

Then, a larger amount of outside air than the heat exchanger 112 applied pressure is directly supplied to the supply port SA through the OA bypass duct 116.

For example, when comparing the amount of air passing through, it is assumed that the introduced outdoor air passes through the OA bypass duct 116 and the heat exchanger 112 at a ratio of approximately 7:3.

Similarly, when a bet bypass is required, the RA damper motor 118a is rotated as shown in FIG. 3 to open the RA damper 118b to open the RA bypass duct 118.

Then, a larger amount of bet than the heat exchanger 112 applied pressure is discharged directly to the exhaust port EA through the RA bypass duct 118.

Meanwhile, as illustrated in FIGS. 4 and 5, an extension chamber EC is further installed at one side of the ventilation introduction chamber C2 and the air supply discharge chamber C4.

In addition, the extension chamber EC has an SA connection duct 210 connecting the supply air discharge chamber C4 and the supply port SA, and the RA connection duct 210 connecting the ventilation introduction chamber C2 and the ventilation opening RA. 220) is provided.

Accordingly, the bet discharged through the ventilation port RA enters the ventilation introduction chamber C2 through the RA connection duct 220 and is discharged to the exhaust port EA through the heat exchanger 112.

In addition, the outside air introduced into the supply air discharge chamber C4 through the heat exchanger 112 is supplied to the supply port SA through the SA connection duct 210.

In this structure, the SA connection duct 210 and the RA connection duct 220 are cross-connected so as not to interfere with each other by the first and second substitution ducts 212 and 222, respectively.

At this time, the first replacement duct 212 and the SA connection duct 210 are selectively opened and closed as the first replacement duct 212 is rotated by 90° by a motor at one end of the SA connection duct 210 side. A first displacement damper 214 is installed.

Likewise, the second replacement duct 222 and the RA connection duct 220 are selectively opened and closed as the second replacement duct 222 and the RA connection duct 220 are rotated by 90° by a motor at one end of the second replacement duct 222 on the side of the RA connection duct 220. A second replacement damper 224 is installed.

Thus, when airflow is required or when the closed positions of the first and second replacement dampers 214 and 224 are periodically switched to change the airflow by setting, the airflow moves in the state shown in FIG. 5 and introduced outside air. Since it is supplied through the ventilation port RA, not the air supply port SA, in this case, the location of the ventilation port RA is changed to the air supply port SA, and the location of the air supply port SA is changed to the ventilation port RA.

Therefore, by changing the existing one-way airflow in both directions, it is possible to completely ventilate the room as a whole.

As described above, since the air supply and exhaust sections are used alternately, it is possible to prevent accumulation of dust and the like in the duct or diffuser, and it is expected that the growth of mold and bacteria can be suppressed.

100: enclosure
112: heat exchanger

Claims (2)

Enclosure 100; A heat exchanger 112 installed in the heat exchange chamber 110 in the center of the enclosure 100; The heat exchanger 112 includes an outdoor port (OA), an exhaust port (EA), an air supply port (SA) and a ventilation port (RA) respectively installed on both sides of the enclosure 100 with the heat exchanger 112 interposed therebetween, and the external port (OA) ) And the exhaust port (EA), and each of the air supply port (SA) and the ventilation port (RA) are formed to be separated from each other, so that the outside air is introduced into the outside port (OA) and then heat-exchanged through the heat exchanger 112 and then the supply port ( In the air circulator designed to be supplied to the room through SA), the bet is introduced into the ventilation port RA, heat exchanged through the heat exchanger 112, and then exhausted to the outside through the exhaust port EA;
The heat exchanger 112 extends horizontally at both left and right vertices, and is then vertically bent at half of the length downward and upward, respectively, so that the first and second partition walls 122 and 124 vertically partition the heat exchange chamber 110. This is more formed;
A bypass part 114 is further formed at one end of the heat exchanger 112,
The bypass unit 114 is an OA bypass duct 116 directly supplied to the air supply port SA, and an RA bypass that minimizes heat exchange of the bet introduced through the ventilation port RA and directly exhausts it to the exhaust port EA. Including a duct 118; The OA bypass duct 116 is provided with an OA damper 116b that opens and closes the OA bypass duct 116 while being rotated by an OA damper motor 116a, and the RA bypass duct 118 has an RA damper. An RA damper 118b for opening and closing the RA bypass duct 118 while being rotated by the motor 118a is installed, and the external air introduced into the external air outlet OA is provided with the bypass unit 114 and the heat exchanger 112 Heat exchanger bypass function and an air circulator capable of converting indoor airflow, characterized in that the capacity is designed to pass through at a ratio of 7:3.
The method according to claim 1;
The space between the ventilation port (RA) and the heat exchange chamber (110) becomes a ventilation introduction chamber (C2), and the space between the air supply port (SA) and the heat exchange chamber (110) becomes a supply air discharge chamber (C4);
An extension chamber (EC) is further installed at one side of the ventilation introduction chamber (C2) and the supply air discharge chamber (C4);
The extension chamber (EC) has an SA connection duct 210 that connects the air supply discharge chamber (C4) and the air supply port (SA), and the RA connection duct 220 that connects the ventilation introduction chamber (C2) and the ventilation port (RA). Is further provided;
The SA connection duct 210 and the RA connection duct 220 are cross-connected so as not to interfere with each other by first and second substitution ducts 212 and 222, respectively;
A first replacement damper 214 that selectively opens and closes the first replacement duct 212 and the SA connection duct 210 while being rotated by 90° by a motor at one end of the first replacement duct 212 on the side of the SA connection duct 210 ) Is installed;
A second replacement damper 224 that selectively opens and closes the second replacement duct 222 and the RA connection duct 220 while being rotated by 90° by a motor at one end of the second replacement duct 222 on the RA connection duct 220 side. ) Is installed, and an air circulator capable of switching indoor airflow and a heat exchanger bypass function.

Images