JP2010230273A - Heat exchange ventilator and heat exchange ventilator system - Google Patents

Abstract

To provide a heat exchange ventilator that can easily suppress the intrusion of mist from outside and can easily discard the collected mist.
An air supply fan 13 housed in a housing 10 sucks outside air from an outside air intake port 1a of the housing, supplies air from the air supply port 1b through an air supply passage of a heat exchange element, and A heat exchange ventilator 40A is constructed in which indoor air is sucked from the return air port 3a of the housing by the exhaust fan 15 housed in the housing, and exhausted from the exhaust port 3b of the housing to the outside through the exhaust passage of the heat exchange element. In this case, there is provided a mist collecting device 30A that collects mist in the outside air sucked into the outside air suction port and discharges it to the outside of the room.
[Selection] Figure 1

Description

  The present invention relates to a heat exchange ventilator that ventilates while exchanging heat between outdoor air and indoor air using a heat exchange element, and a heat exchange ventilator system using the heat exchange ventilator.

  In a heat exchange ventilator that ventilates while exchanging heat between outdoor air and room air using a heat exchange element, for example, when operating on a foggy or drizzle day, mist (mist water) is taken into the device. This may damage the heat exchange element or the device or cause water leakage from the heat exchange element. Therefore, it is desirable to provide a function of collecting mist on the outdoor side rather than the heat exchange element.

  Mist collection has already been performed in various technical fields, and various mist collection devices are known. For example, in Patent Document 1, when a plurality of collecting plates are refracted at least once in the air traveling direction to form a plurality of refractive paths, the refracting portions of the individual collecting plates can be bent and bent. In addition, there is described a mist collecting device in which one end of each collecting plate is connected with a support and the collection limit particle size is made variable by changing the refraction angle and the passage width of the refraction path by moving the support. Has been.

  Further, in Patent Document 2, a mist collecting valve provided in the mist collecting groove is provided in which a mist collecting means is provided in the duct and a mist collecting groove for collecting and storing the mist collected by the mist collecting means is provided. A mist collecting device is disclosed in which the water stored in the mist collecting groove is discharged by periodically opening the mist. Patent Document 3 describes an exhaust purification system in which oil mist or the like in exhaust gas is absorbed and purified by washing water, and the exhaust gas after the purification is exchanged with outside air by heat recovery means.

Japanese Patent Laid-Open No. 59-100436 JP 2005-87852 A JP 2001-299884 A

  However, the mist collecting device described in Patent Document 1 is used by being incorporated in a humidifier capable of reusing the collected mist, and is appropriately used without reusing the collected mist. It cannot be applied as it is to a heat exchange ventilator that requires processing.

  Moreover, in the mist collection | recovery apparatus described in patent document 2, the mist extraction valve installed in the said mist collection groove | channel is regularly opened for the water collected by the mist collection means and stored in the mist collection groove | channel. Therefore, when applied to a heat exchange ventilator installed on the ceiling of a room, maintenance management of the apparatus becomes complicated.

  An exhaust purification system described in Patent Document 3 that purifies by absorbing oil mist and the like in exhaust gas into cleaning water is a device for preventing mist in outdoor air from entering the heat exchange ventilator. As unsuitable.

  The present invention has been made in view of the above circumstances, a heat exchange ventilator that makes it easy to suppress the intrusion of mist from the outside and easily discards the collected mist, and heat exchange using the heat exchange ventilator The purpose is to obtain a ventilation system.

  The heat exchange ventilator of the present invention sucks outside air from the outside air suction port of the housing by the air supply fan stored in the housing, and supplies air from the air supply port to the outside of the machine through the air supply passage of the heat exchange element. A heat exchange ventilator that sucks room air from the return air port of the housing by an exhaust fan housed in the housing and exhausts the air from the exhaust port of the housing through the exhaust passage of the heat exchange element to the outside of the machine. And a mist collecting device that collects mist in the outside air sucked into the chamber and discharges the mist outside the room.

  The heat exchange ventilator of the present invention includes a mist collecting device that collects mist in the outside air and discharges it to the outside of the room, so that it is easy to suppress the intrusion of mist from the outside and easily discard the collected mist. It is.

FIG. 1 is a partial sectional view schematically showing an example of the heat exchange ventilation system of the present invention. FIG. 2 is a partial cross-sectional view schematically showing an enlarged mist collecting device in the heat exchange ventilation system shown in FIG. 1. FIG. 3 is an exploded perspective view schematically showing an example of the internal structure of the mist collecting device that constitutes each of the heat exchanging ventilator and the heat exchanging ventilator system of the present invention and having an eliminator for removing dust. It is. FIG. 4 is a partial cross-sectional view schematically showing an example of each of the heat exchange ventilator and the heat exchange ventilator system in which the mist collecting device is separated from the ventilator body of the heat exchanging ventilator. is there. FIG. 5 shows a mist collecting device constructed using the heat exchanging ventilator of the present invention and the heat exchanging ventilator not provided with the mist collecting device, and the vicinity thereof. It is a fragmentary sectional view showing roughly.

  Hereinafter, embodiments of the heat exchange ventilation apparatus and the heat exchange ventilation system of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments described below.

Embodiment 1 FIG.
FIG. 1 is a partial cross-sectional view schematically showing an example of the heat exchange ventilation system of the present invention. FIG. 2 is an enlarged schematic view of the mist collecting device in the heat exchange ventilation system shown in FIG. It is a fragmentary sectional view shown. A heat exchange ventilation system 50A shown in FIG. 1 is a system that ventilates a room while exchanging heat between outside air and room air by a heat exchange ventilation apparatus 40A corresponding to an example of the heat exchange ventilation apparatus of the present invention. In addition to the heat exchange ventilator 40A, an outside air duct 41, an air supply duct 42, a return air duct 43, and an exhaust duct 44 are provided. Hereinafter, each component of the heat exchange ventilation system 50A will be described.

  The heat exchange ventilator 40 </ b> A is provided on the ventilator body 20 embedded in the ceiling 100 of the building, the mist collecting device 30 </ b> A attached to the side of the ventilator body 20, and the ventilator body 20. And a remote controller (not shown) that is connected to communicate with the ventilator main body 20. The ventilator main body 20 includes a housing 10, an air supply fan 13, an exhaust fan 15 and a heat exchanger 17 stored in the housing 10, and a main body controller (not shown) attached to the housing 10. Z).

  The casing 10 constituting the ventilator main body 20 is a rectangular parallelepiped box formed of sheet metal, and the casing 10 includes an outside air inlet 1a, an air inlet 1b, a return air outlet 3a, and an exhaust outlet 3b. Is formed. A mist collecting device 30A is attached to the outside of the outside air inlet 1a, and the outside of the mist collecting device 30A and the outside of the air supply port 1b, the return air port 3a, and the exhaust port 3b are respectively Duct connection portions 5 are attached one by one. In addition, two partition plates 7 a and 7 b that bisect the case 10 in the height direction and that are separated from each other at the center of the case 10 are provided in the case 10.

  The air supply fan 13 is disposed on the partition plate 7a. When the air supply fan 13 is operated, outside air is taken into the housing 10 from the outside air intake port 1a and blown into the room from the air supply port 1b. The The exhaust fan 15 is disposed on the partition plate 7b. When the exhaust fan 15 is operated, indoor air is taken into the housing 10 from the return air port 3a and blown out from the exhaust port 3b to the outside.

  The heat exchanger 17 includes a heat exchange element and a frame that accommodates the heat exchange element, and the outside air taken into the housing 10 by the air supply fan 13 and the exhaust fan 15 enter the housing 10. Heat is exchanged with the taken-in room air. As the heat exchange element, for example, a paper partition member having a sheet shape and a paper spacing member having a corrugated shape are alternately stacked, and between the partition member and the spacing member below it, and A total heat exchange type, sensible heat exchange type, or latent heat exchange type element in which a plurality of air flow paths are respectively formed between the partition member and the spacing member on the partition member is used. Each flow path formed below the partition member and each flow path formed on the partition member are substantially orthogonal when viewed in plan.

  For example, each of the plurality of flow paths formed on each partition member serves as an air supply passage in the heat exchange element, and each of the plurality of flow paths formed below the partition member is formed in the heat exchange element. It becomes an exhaust passage. In the heat exchange ventilator 40A, each air supply passage in the heat exchange element reaches from above the horizontal partition wall 7b to above the horizontal partition wall 7a, and each exhaust passage reaches from above the horizontal partition wall 7a to above the horizontal partition wall 7b. A heat exchanger 17 is arranged.

  The mist collecting device 30 </ b> A is attached to the side of the outside air inlet 1 a in the ventilation device main body 20. As shown in FIG. 2, the mist collecting device 30 </ b> A is disposed below the outer box 21, a mist collecting part 23 </ b> A accommodated in the outer box 21, and a mist collecting part 23 </ b> A in the outer box 21. The drain pan 25 and a drain pipe 27 connected to the drain pan 25 are provided. The outer box 21 is formed with a housing side ventilation port 21 a communicating with the outside air suction port 1 a and an outdoor side ventilation port 21 b communicating with the outside air duct 41. The mist collecting unit 23A is configured using, for example, a plurality of fins, a plurality of nets, and the like, and collects mist in the outside air sucked into the outside air suction port 1a. The drain pan 25 receives the water collected and dripped by the mist collecting section 23A. Then, the drain pipe 27 extends to the outside through the outside air duct 41 and discharges the water received by the drain pan 25 to the outside.

  One end of the outside air duct 41 (see FIG. 1) is connected to the duct connecting portion 5 in the mist collecting device 30A, and the other end of the outside air duct 41 penetrates the outer wall 110 of the building and reaches the outside of the room. Yes. The outdoor air duct 41 is provided with a downward slope from the housing 10 side (mist collecting device 30A side) to the outdoor side to prevent rainwater from entering, and an outdoor air hood is provided at the outdoor end of the outdoor air duct 41. 45 (see FIG. 1) is attached. Since the outdoor air duct 41 is provided with the above-described downward slope, the drain pipe 27 of the mist collecting device 30 </ b> A extending through the outside air duct 41 to the outside, specifically, to the outside air hood 45, A downward slope is given from the mist collecting device 30A side to the outdoor side.

  One end of the air supply duct 42 (see FIG. 1) is connected to the duct connection portion 5 attached to the outside of the air supply port 1b in the housing 10, and the other end of the air supply duct 42 is The air supply grill 46 attached to the ceiling 100 is connected. Further, one end of the return air duct 43 (see FIG. 1) is connected to a duct connecting portion 5 attached to the outside of the return air port 3a in the housing 10, and the other end of the return air duct 43 is , Attached to the ceiling 100 and connected to the return air grille 47. One end of the exhaust duct 44 (see FIG. 1) is connected to the duct connecting portion 5 attached to the outside of the exhaust port 3b in the housing 10, and the other end of the exhaust duct 44 is connected to the building. It penetrates the outer wall 110 and reaches the outside of the room. An exhaust hood 48 is attached to the outside end of the exhaust duct 44.

  In the heat exchange ventilation system 50A having each of the above-described components, the main body side controller (not shown) of the heat exchange ventilation device 40A responds to a command sent from a remote controller (not shown). The operation of each exhaust fan 15 is controlled.

  When heat exchange ventilation is performed by the heat exchange ventilator 40A, each of the air supply fan 13 and the exhaust fan 15 is activated by the main body side controller. As a result, the outside air is taken into the housing 10 through the outside air hood 45, the outside air duct 41, the mist collecting device 30A, and the outside air suction port 1a, and passes through the air supply passage of the heat exchanger 17 to supply the air fan 13. , The air is blown into the room through the air supply port 1b, the air supply duct 42, and the air supply grill 46. Further, after the indoor air is taken into the housing 10 through the return air grill 47, the return air duct 43, and the return air port 3a and reaches the exhaust fan 15 through the exhaust passage of the heat exchanger 17, the exhaust port 3b, the exhaust duct 44, and the exhaust hood 48 are blown out of the room.

  At this time, the mist in the outside air that has reached the mist collecting device 30A from the outside air hood 45 through the outside air duct 41 is collected by the mist collecting unit 23A (see FIG. 2) of the mist collecting device 30A, After dropping into the drain pan 25, the water flows down the drain pipe 27 with a downward slope and is discharged from the outside hood 45 to the outside. After the mist is collected, the outside air is heat-exchanged with the room air flowing through the exhaust passage of the heat exchanger 17 when it flows through the supply passage of the heat exchanger 17, and is then conditioned. The air is blown into the room through the air grill 46. In order to make it easy to understand the flow of outside air and indoor air inside and outside the housing 10 during heat exchange ventilation, the flow of outside air during heat exchange ventilation is indicated by a solid arrow A in FIG. The flow of room air is indicated by a broken arrow B in FIG.

  The heat exchange ventilator 40A that performs heat exchange ventilation as described above and the heat exchange ventilator system 50A including the heat exchange ventilator 40A collect mist in the outside air by the mist collector 23A and naturally Since the mist collecting device 30A for discharging is provided, it is easy to suppress the intrusion of the mist from the outside, and it is easy to discard the collected mist. Even when heat exchange ventilation is performed for a long time on a foggy day or a drizzle day, it is possible to prevent the heat exchange element or device from being damaged by the mist or causing water leakage from the heat exchange element.

  Further, since the mist collecting device 30A is attached to the side of the ventilator body 20, the inspection port 105 (see FIG. 1) provided in parallel in the building when the heat exchange ventilator 40A is installed is used. Installation and maintenance management of the mist collecting device 30A can be easily performed. By providing the mist collecting device 30A, it is possible to easily suppress a decrease in efficiency of installation work and a decrease in workability during maintenance management. Furthermore, since the drain pipe 27 (see FIG. 2) of the mist collecting device 30A is passed through the outside air duct 41, the drain pipe 27 can be easily installed without newly securing a dedicated drain channel, and the installation cost Easy to minimize.

Embodiment 2. FIG.
In each of the heat exchanging ventilator and the heat exchanging ventilating system of the present invention, an eliminator for removing dust is provided between the mist collecting part and the drain pan in the mist collecting device, and the mist adsorbing the dust is used as it is in the drain pan. It is also possible to configure so as not to dripping.

  FIG. 3 is an exploded perspective view schematically showing an example of the internal structure of a mist collecting apparatus having an eliminator for removing dust. The mist collection device 30B shown in the figure includes a mist collection unit 23B, an eliminator 29 disposed below the mist collection unit 23B, a drain pan 25 disposed below the eliminator 29, and the drain pan 25. The mist collecting part 23B, the eliminator 29, and the drain pan 25 are accommodated in an outer box (not shown).

  As said mist collection part 23B, the comparatively coarse thing by which the several fin 23a was arrange | positioned in parallel is used from a viewpoint of preventing clogging with the dust in external air. The configuration of the mist collecting device 30B excluding the mist collecting unit 23B and the eliminator 29 is the same as the configuration of the mist collecting device 30A shown in FIG. 1 or FIG. Omitted. Moreover, each structure of the heat exchange ventilation apparatus and heat exchange ventilation system provided with the mist collection apparatus 30B uses the point that it replaces with the mist collection apparatus 30A shown in FIG. 1, for example, and uses the mist collection apparatus 30B. Since it can be set as the structure similar to 40 A of heat exchange ventilation apparatuses or 50 A of heat exchange ventilation systems of Embodiment 1, except that the illustration is abbreviate | omitted here.

  In the mist collecting device 30B configured as described above, when the mist collecting unit 23B collects the mist in the outside air, the dust in the outside air is adsorbed to the mist collected in the mist collecting unit 23B. The mist adsorbing the dust is dropped into the eliminator 29 as water droplets. The mist adsorbing the dust is separated into water and dust by the eliminator 29, and only water falls into the drain pan 25. Therefore, in the mist collecting device 30B, the drain pipe 27 is prevented from being clogged with dust.

  Therefore, in each of the heat exchange ventilator and the heat exchange ventilator system provided with the mist collecting device 30B, maintenance management is possible even when compared with the heat exchange ventilator 40A or the heat exchange ventilator system 50A described in the first embodiment. It becomes easy.

Embodiment 3 FIG.
In each of the heat exchange ventilator and the heat exchange ventilator system of the present invention, the mist collecting device can be arranged separately from the ventilator main body of the heat exchange ventilator. Even when the mist collecting device is arranged in this way, it is preferable to arrange the mist collecting device so that the drain pipe from the drain pan extends to the outside through the outside air duct. Whether or not the eliminator is arranged in the mist collecting device can be appropriately selected. However, as described in the second embodiment, it is preferable to arrange the eliminator.

  FIG. 4 is a partial cross-sectional view schematically showing an example of each of the heat exchange ventilator and the heat exchange ventilator system in which the mist collecting device is arranged separately from the ventilator main body of the heat exchange ventilator. The heat exchange ventilator 40B shown in the figure has the same configuration as the heat exchange ventilator 40A shown in FIG. 1 except that the mist collecting device 30A is arranged away from the ventilator main body 20. is doing. Moreover, the heat exchange ventilation system 50B shown to the figure is provided with the external air duct 41A which has the 1st duct part 41a and the 2nd duct part 41b, and it replaces with the heat exchange ventilation apparatus 40A, and the heat exchange ventilation apparatus 40B. Except for the point provided with each, it has the structure similar to 50 A of heat exchange ventilation systems shown in FIG. Among the constituent members shown in FIG. 4, those supplied with the constituent members shown in FIG. 1 are assigned the same reference numerals as those used in FIG.

  The mist collecting device 30A in the heat exchanging ventilator 40B is spaced from the ventilator main body 20 and is disposed immediately inside the outer wall 110 of the building. The mist collecting device 30A communicates with the outside through the first duct portion 41a for sending outside air to the mist collecting device 30A, and communicates with the outside air suction port 1a of the apparatus main body 20 through the second duct portion 41b. ing. The first duct portion 41a and the second duct portion 41b constitute an outside air duct 41A.

  Further, the drain pipe 27 in the mist collecting device 30A extends to the outside through the first duct portion 41a. The first duct portion 41a has a downward gradient from the mist collecting device 30A side to the outdoor side, and the drain pipe 27 passed through the first duct portion 41a also has a downward gradient from the mist collecting device 30A side to the outdoor side. Is attached.

  In each of the heat exchange ventilator 40B and the heat exchange ventilator system 50B configured as described above, as in the heat exchange ventilator 40A and the heat exchange ventilator system 50A (see FIG. 1) described in the first embodiment, the heat exchanger ventilator 40B and the heat exchanger ventilator system 50B It is easy to suppress the intrusion of the mist, and it is easy to discard the mist collected by the mist collecting device 30A. Moreover, since the pipe length of the drain pipe 27 in the mist collecting apparatus 30A is shorter than the pipe length of the drain pipe 27 in the first embodiment, the manufacturing cost of the mist collecting apparatus 30A can be easily suppressed.

Embodiment 4 FIG.
The heat exchange ventilation system of the present invention includes a heat exchange ventilator of the present invention (hereinafter referred to as “first heat exchange ventilator”) and a heat exchange ventilator not equipped with a mist collecting device (hereinafter referred to as “second heat exchanging device”). It can also be constructed using a "exchange ventilation device". In this case, at least one first heat exchange ventilator is used, and the mist collecting device in the first heat exchange ventilator is connected to the outside air inlet of the first heat exchange ventilator, and if necessary. To the outside air inlet of the second heat exchange ventilator.

  FIG. 5 is a partial cross-sectional view schematically showing a mist collecting device and its vicinity in a heat exchange ventilation system constructed using a first heat exchange ventilator and a second heat exchange ventilator. The mist collecting device 30C shown in the figure constitutes a heat exchange ventilation system (not shown) using one first heat exchange ventilator and two second heat exchange ventilators.

The mist collecting device 30C has the same configuration as the mist collecting device 30A (see FIGS. 1 and 2) described in the first embodiment. The mist collecting device 30C communicates with the outside by a first duct portion 41a for sending outside air to the mist collecting device 30C. The mist collecting device 30C communicates with an outside air inlet (not shown) of the main body of the first heat exchange ventilator through the second duct portion 41b _{1 and} performs second heat exchange through the third duct portion 41b ₂ . It communicates with the outside air inlet (not shown) of the apparatus main body in the ventilator, and communicates with the outside air inlet (not shown) of the apparatus main body in the other second heat exchange ventilator by the fourth duct part 41b _3. ing.

  In the heat exchange ventilation system configured as described above, in the same manner as the heat exchange ventilation apparatus 40A and the heat exchange ventilation system 50A (see FIG. 1) described in the first embodiment, the mist enters the ventilation apparatus main body from the outside. Can be easily suppressed by the mist collecting device 30C, and the mist collected by the mist collecting device 30C can be easily discarded. Since the mist intrusion into the plurality of ventilation device bodies can be suppressed by the single mist collecting device 30C, the production cost of the heat exchange ventilation system can be easily suppressed.

  As described above, the heat exchange ventilation apparatus and the heat exchange ventilation system according to the present invention have been described with reference to the embodiments. However, as described above, the present invention is not limited to the above embodiments. The heat exchange ventilator according to the present invention may be provided with a mist collecting device that collects mist in the outside air sucked into the outside air suction port of the ventilator main body and naturally discharges it to the outside. The configuration of can be changed as appropriate. Moreover, the structure of the mist collection part, drain pan, and exhaust pipe in a mist collection apparatus can also be changed suitably. And the heat exchange ventilation system of this invention should just be equipped with at least 1 heat exchange ventilation apparatus of this invention. The present invention can be variously modified, modified, combined, etc. in addition to the above-described embodiments.

  Each of the heat exchange ventilator and the heat exchange ventilator system of the present invention is useful as both a heat exchanging ventilator or a heat exchanging ventilator system for home use and business use.

DESCRIPTION OF SYMBOLS 1a Outside air inlet 1b Air supply port 3a Return air port 3b Exhaust port 10 Housing | casing 13 Supply air fan 15 Exhaust fan 17 Heat exchanger 20 Ventilator main body 23A, 23B Mist collection part 25 Drain pan 27 Drain pipe 29 Eliminator 30A, 30B , 30C Mist collection device 40A, 40B Heat exchange ventilator 41, 41A, 41B Outside air duct 42 Supply air duct 43 Return air duct 44 Exhaust duct 50A, 50B Heat exchange ventilation system

Claims (8)

The air supply fan stored in the housing sucks in the outside air from the outside air intake port of the housing, supplies the air from the air supply port to the outside through the air supply passage of the heat exchange element, and exhausts stored in the housing A heat exchange ventilator that sucks indoor air from a return air port of the housing by a fan and exhausts the air from the exhaust port of the housing through the exhaust passage of the heat exchange element,
A heat exchange ventilator comprising a mist collecting device that collects mist in outside air sucked into the outside air inlet and discharges it to the outside of the room. The mist collecting device is
An outer box,
A mist collecting section housed in the outer box, a drain pan disposed below the mist collecting section in the outer box, and receiving water that is collected and dripped by the mist collecting section;
A drain pipe connected to the drain pan for discharging the water to the outside;
The heat exchange ventilator according to claim 1, comprising:   The heat exchange ventilator according to claim 1 or 2, wherein the mist collector further includes an eliminator provided between the mist collector and a drain pan to remove dust in the outside air. The mist collecting device is disposed adjacent to the outside air inlet and communicates with the outside air inlet,
An outside air duct for sending outside air to the outside air suction port is connected to the mist collecting device,
The heat exchange ventilator according to any one of claims 1 to 3. The mist collecting device is disposed away from the housing;
The mist collecting device is connected to a first duct portion for sending outside air to the mist collecting device and a second duct portion for sending outside air from the mist collecting device to the outside air inlet. ,
The heat exchange ventilator according to any one of claims 1 to 3. The air supply fan stored in the housing sucks in the outside air from the outside air intake port of the housing, supplies air from the air supply port to the outside through the air supply passage of the heat exchange element, and exhaust stored in the housing A first heat exchange ventilator that sucks room air from the return air port of the housing by a fan and exhausts the air from the exhaust port of the housing to the outside through the exhaust passage of the heat exchange element; and the first heat exchange ventilator A heat exchange ventilation system comprising an outside air duct for sending outside air to the outside air inlet of
The first heat exchange ventilator is disposed on the outdoor side of the casing, and is capable of collecting mist in the outside air sucked into the outside air suction port and discharging the mist from the outside air duct to the outside of the room. A heat exchange ventilation system characterized by comprising a device.   The heat exchange ventilation system according to claim 6, wherein the outside air duct has a downward slope from the housing side to the outside of the room. A second heat exchange ventilator that does not include a mist collector;
The mist collecting device of the first heat exchange ventilator communicates with each of the outside air suction port of the first heat exchange ventilator and the outside air suction port of the second heat exchange ventilator.
The heat exchange ventilation system according to claim 6 or 7.

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