JP4818690B2 - Ventilation equipment behind the ceiling or under the floor - Google Patents

Description

The present invention relates to equipment for ventilating a ceiling or under the floor. More particularly, the present invention relates to a ventilation system under the ceiling or under the floor that efficiently ventilates the air behind the ceiling or under the floor of a room with high humidity such as a bathroom or a sauna room.

Japanese Patent Publication No. 2-55692 JP-A-11-223370 JP 2004-45006

  When ventilating the ceiling of a room with high humidity, such as a bathroom or sauna room, in many cases, multiple ventilation openings are provided in the ceiling for natural ventilation, or a ventilation fan is placed in one ventilation opening in the ceiling. Air inside the back is sucked and exhausted outdoors, and outside air is naturally taken in from other ventilation openings.

  In FIG. 3, the schematic duct figure of the ventilation equipment of the conventional bathroom is shown. The room on the left side of FIG. 3 is a dressing room 101, the room adjacent to the dressing room 101 is a bathroom 102, and the room adjacent to the bathroom 102 is a sauna room 103. The ceilings of these three rooms are partitioned by partition plates S and S into a ceiling back 104 of the dressing room, a ceiling back 105 of the bathroom, and a ceiling back 106 of the sauna room.

  An exhaust duct 107 and an outside air intake duct 108 extend on the ceiling 105 of the bathroom. The exhaust duct 107 passes through the partition plate, extends to the outside through the ceiling 106 of the sauna room, and communicates the ceiling 105 of the bathroom with the outside. The outside air intake duct 108 communicates with the outside of the ceiling 105 of the bathroom and the outside through the ceiling 104 of the dressing room. The exhaust duct 107 is provided with a fan 109, which sucks air from the ceiling 105 of the bathroom and exhausts it to the outside. When air is exhausted to the outside, the outside air is taken in from the outside air intake duct 108 and the ceiling back 105 of the bathroom is ventilated.

  On the other hand, exhaust ducts 110 and 110 and outside air intake ducts 111 and 111 for ventilating indoor air extend in the dressing room 101 and the bathroom 102, respectively. The exhaust duct 110 and the outside air intake duct 111 communicate the dressing room 101 and the bathroom 102 with the outside. Fans 112, 112 are connected to the exhaust ducts 110, 110, and the air in the dressing room 101 and the bathroom 102 is sucked and exhausted to the outside. When air is exhausted to the outside, the outside air is taken in from the outside air intake duct 111 and the dressing room 101 and the bathroom 102 are ventilated.

  As a technique related to the present invention, an air supply / exhaust device of Patent Document 1 is disclosed. This is provided with an air supply port and an exhaust port in each room, and air is supplied by opening the door of the exhaust port. Therefore, since the balance between supply and exhaust is good, it is possible to prevent a whistling phenomenon such as a sash or the like because it becomes difficult to open and close doors and windows due to negative pressure in the house.

  Patent Document 2 discloses a building ventilation system and ventilation method. This is a ventilation system that ventilates the entire building with low equipment cost by forcibly exhausting one room, making other rooms negative pressure, and taking in fresh air from outside.

  Patent Document 3 discloses an air pressure blower. In this system, air is supplied by pressurizing and blowing air in multiple directions from substantially the center of the back of the ceiling. According to this apparatus, it is possible to prevent stagnation of air generated at the corner of the back of the ceiling, which is effective in preventing the generation of mold, fungi, or off-flavors.

  The ceiling of a room with high humidity, such as a bathroom or sauna room, is water-resistant like in the bathroom, so moisture is filled by the steam that enters through the gap between the ceilings of the components and becomes a hotbed of mold or germs. Cheap. In particular, it is not preferable in terms of hygiene under the condition of operating for 24 hours. Ventilation is provided to improve such an undesirable environment. However, as shown in the prior art of FIG. 3, if a ventilation fan or fan is installed behind the ceiling and the air is sucked and exhausted from the ventilation port, the inside of the ceiling becomes negative pressure, which is not visible in facilities that use the bathroom for a long time. The air in the bathroom is taken in through fine gaps, and the opposite effect is obtained.

  In addition, the air flow in the ceiling flows through the shortest distance from the ventilation opening for taking in outside air to the ventilation fan, so there is `` stagnation '' of air that cannot flow in the corner of the ceiling. Moisture tends to accumulate. Such “stagnation” becomes a hotbed of mold and various germs, and is also a source of unpleasant odor.

  In Patent Documents 1 and 2, ventilation under the ceiling or under the floor is not considered. Moreover, in patent document 3, although the ventilation of a ceiling back can be performed efficiently, since it provides separately from the ventilation equipment in a room, installation is complicated and installation cost is also high.

Therefore, an object of the present invention is to provide a ceiling or under-floor ventilation facility that efficiently ventilates the ceiling or under-floor and has simple facilities.

The ventilation system under the ceiling or under the floor according to the present invention (Claim 1) is provided with a partition plate between the ceiling behind or under the floor of the first room with low humidity and the ceiling under or under the floor of the second room with high humidity. a, the first equipped with a fan for sucking the indoor air of the room, the ceiling or under the floor of the second chamber, outlet or exhaust for exhausting the internal air outdoors for ventilation A duct communicating with the mouth, and the air sucked by the fan is blown out to the back of the ceiling or under the floor of the second room, so that the back of the ceiling or under the floor of the second room has a positive pressure. It is characterized in that it comprises.

Such ceiling or under the floor of the ventilation of the previous SL first chamber is the changing room, as the second chamber is full is preferable (claim 2). Further, the interior of the first room is provided with a ventilation opening, and the ventilation opening communicates with the outside air intake through which the outside air is taken in from outside and a duct on the outside air intake side, and the suction force of the fan those drawing outside air into the first chamber by preferably (claim 3).

The ceiling or underfloor ventilation system of the present invention (Claim 1) sucks the air in the first room with low humidity by a fan. For this reason, since the interior of the first room has a negative pressure, the outside air is naturally taken in and ventilated. Next, the air in the room of the first room sucked by the fan is blown out on the ceiling or under the floor of the second room with high humidity . As a result, the back of the ceiling or under the floor of the second room has a positive pressure, and the air behind the ceiling is agitated by the pushing of the fan. It can be prevented from becoming a hotbed of various germs, and moisture can be prevented from entering from the bathroom. Moreover, even if it does not introduce a large-scale installation, the existing installation can be diverted and the back of the ceiling or the floor can be efficiently ventilated.
Further, since the air in the first room sucked by the fan is blown out to the back of the ceiling or the floor of the second room, the high-humidity air in the back of the ceiling or the floor is replaced or diluted. Can reduce the humidity under the ceiling or under the floor.

Such ventilation equipment under the ceiling or under the floor is exhausted to ventilate the dressing room when the first room is a dressing room and the second room is a bathroom (Claim 2). It can be reused by blowing air to the ceiling of the bathroom. For this reason, there is no need for a new facility for ventilating the ceiling of the bathroom, so the facility is simple. It is also easy to install into existing equipment.
Further, the interior of the first room is provided with a ventilation opening, and the ventilation opening communicates with the outside air intake through which the outside air is taken in from outside and a duct on the outside air intake side, and the suction force of the fan When the outside air is taken into the first room by (Claim 3), the outside air is naturally taken in from the ventilation port when the fan sucks the room air. On the other hand, when the air is blown out to the back of the ceiling by the fan, the air behind the ceiling is naturally exhausted from the exhaust port. Therefore, a smooth air flow can be formed, pressure loss is small, and a small fan can be used.

Next, with reference to the drawings, an embodiment of the ventilating facility behind the ceiling or under the floor (hereinafter referred to as the ceiling behind ) of the present invention will be described. FIG. 1 is a schematic duct diagram showing a ventilation facility such as a ceiling back of the present invention, and FIG. 2 is a schematic duct diagram showing a bathroom building using the ventilation equipment such as the ceiling back of FIG.

  The ventilation facility 1 such as the back of the ceiling shown in FIG. 1 is a facility for simultaneously ventilating the air in the first room 2 having a low humidity and the ceiling 3a of the second room 3 having a high humidity. A fan 4 is disposed on the ceiling back 2a of the room 2, and the suction side of the fan 4 is connected to the room 2 side, and the blowing side is connected to the ceiling back 3a side.

Moreover, although it was set as the said ceiling back 3a, it may be under the floor .

  The first room 2 and the ceiling back 2a of the room are partitioned by a ceiling plate 5a. A suction port 6a and a ventilation port 6b are formed in the ceiling plate 5a. The suction port 6a is connected to the suction side of the fan 4 by a duct 7a on the suction side. On the other hand, the ventilation port 6b communicates with an outside air inlet 8 provided on the outer wall via a duct 7b on the outside air intake side. When the fan 4 operates, the air in the first chamber 2 is sucked and the first chamber 2 becomes negative pressure. Therefore, outside air naturally flows into the first room 2 from the ventilation opening 6b, and the inside of the first room 2 is ventilated.

  The ceiling back 2a of the first room 2 and the ceiling back 3a of the second room 3 are partitioned by a partition plate 5b. An air outlet 9a is formed in the partition plate 5b. The outlet 9a is connected to the blowing side of the fan 4 by a duct 7c for blowing. An exhaust port 9b for exhausting the air inside is formed in the ceiling back 3a. When the fan 4 is operated, the air in the first room 2 for ventilation blows out from the air outlet 9a, and the inside of the ceiling back 3a becomes positive pressure. Then, excess air is exhausted from the exhaust port 9b. When the air for ventilation blows out from the said blower outlet 9a, the static pressure of the ceiling back 3a is larger than zero. For this reason, air flows to every corner of the ceiling 3a and does not create a “stagnation” (dead spot) that is difficult for air to flow. Can be prevented.

  As the fan 4, a centrifugal blower, an axial flow blower, a mixed flow blower or the like is used. Further, the suction side duct 7a, the outside air intake side duct 7b and the blowout duct 7c are made of a thin metal plate such as stainless steel or galvanized steel sheet, and are formed in a bellows shape or a spiral shape. It has flexibility and elasticity.

  Thus, according to the ventilation equipment 1 such as the back of the ceiling, the air in the first room 2 is sucked in to naturally take outside air to ventilate the first room 2, and at the same time, the first sucked in The air in the room 2 can ventilate the ceiling 3a or the floor of the second room. Furthermore, “stagnation”, which is a portion where air does not flow, is not formed in the ceiling 3a or the four corners under the floor. Therefore, the ceiling back 3a or the under floor can be efficiently ventilated, which is clean. In addition, it is easy to construct using existing equipment without introducing new equipment.

  In addition, a plurality of the first rooms 2 may be provided. Furthermore, air from other rooms or outside air may be mixed with part of the air to be blown out and blown out to the ceiling 3a. Moreover, the amount of air blown out to the ceiling back 3a can be adjusted using the air volume adjusting damper. Furthermore, when ventilating using adjusted air in which the humidity is kept constant, do not throw the adjusted air out as it is, and if it is reused using the ventilation equipment 1 such as the back of the ceiling, it will dry. It is energy saving because the adjusted air can be used up to the end.

  In addition, it is preferable to provide a fire-proof damper etc. in the blower outlet 9a formed in the partition plate 5b, and to prevent fire spread.

  Next, an embodiment in which the ventilation equipment 1 such as the back of the ceiling of the present invention is applied to a dormitory where a horse jockey before a run stays will be described with reference to the schematic diagram of FIG. The bathroom building 10 shown in FIG. 2 is adjacent to the undressing room 11, the front room 12 adjacent to the undressing room 11, the rest room 13 adjacent to the front room 12, and the rest room 13 from the left in the figure. And a sauna room 15 adjacent to the right side of the bathroom 14.

  The undressing room 11 is normally ventilated by taking in outside air. The front room 12 is disposed between the dressing room 11 and the rest room 13. The front chamber 12 is provided with doors on the undressing room 11 side and the resting room 13 side so that the high humidity air on the resting room 13 side does not flow to the undressing room 11 side. The anterior chamber 12 is not ventilated. The rest room 13 and bathroom 14 have a temperature of about 40 degrees and a humidity of about 100%. These rest room 13 and bathroom 14 are usually ventilated. The sauna room 15 has a temperature of about 45 degrees and a humidity of about 100%. The sauna room 15 is not ventilated.

  The outer wall of the bathroom building 10 is provided with an outlet air gallery (OAG) 23 for taking in air for ventilation from the outside air, and an exhaust air gallery (EAG) 24 for exhausting the air in each room to the outside. ing. These OAG 23 and EAG 24 are connected together with ducts necessary for taking in outside air or exhausting them to the outside. In the gallery 23, 24, a plurality of blades are arranged horizontally, and the blades are inclined so as to obstruct the opening, thereby preventing rainwater from entering from the outside.

The ceiling of the bathroom building 10 is partitioned by four partition plates 21a, 21b, 21c, and 21d corresponding to the partition walls of each room. The partition plates are a partition plate 21a for the dressing room and the front room, a partition plate 21b for the front room and the rest room, a partition plate 21c for the rest room and the bathroom, and a partition plate 21d for the bathroom and the sauna room in order from the left side in the figure. is there. With these four partition plates 21a, 21b, 21c, 21d, the back of the ceiling is the ceiling back 16 of the dressing room, the ceiling back 17 of the front room, the ceiling back 18 of the rest room, the ceiling back 19 of the bathroom, and the sauna room The ceiling 20 is partitioned off.
The partition plate 21c on the ceiling of the rest room and the bathroom and the partition plate 21d on the ceiling of the bathroom and the sauna room are provided with wall penetration sleeves 27, 27, and the ceiling back 18 of the rest room, the ceiling back 19 of the bathroom, and The ceiling 20 of the sauna room communicates with each other.

  The lower rooms 11, 12, 13, 14, and 15 of the bathroom building 10 and the corresponding upper ceilings 16, 17, 18, 19, and 20 are separated by ceiling plates 22a, 22b, 22c, and 22d. ing. The ceiling boards are a ceiling board 22a in the dressing room, a ceiling board 22b in the rest room, a ceiling board 22c in the bathroom, and a ceiling board 22d in the sauna room.

  The fan 4 of the ventilation facility 1 is disposed in the vicinity of the ceiling 16 of the low humidity dressing room. The suction port 6a and the ventilation port 6b of the ventilation facility 1 are formed in the ceiling plate 22a of the dressing room. The suction port 6a is connected to the fan 4 by a duct 7a on the suction side, and the ventilation port 6b is connected to the OAG 23 (intake port 8) through the duct 7b on the outside air intake side. A volume damper 25 is disposed on the blowing side of the fan 4 so that the amount of air blown out can be adjusted. Further, a check damper 26 is provided following the volume damper 25.

The air blown out from the fan 4 is guided to the ceiling backs 18, 19 and 20 of the room with high humidity by the duct 7c for blowing out. The duct 7c for blowing out penetrates the partition plate 21a of the dressing room and the front room and the partition plate 21b of the front room and the rest room, and extends to the ceiling back 18 of the rest room, and branches there to form the air outlet 9a. ing.
The body of the duct 7c for blowing out further extends through the partition plate 21c for the rest room and the bathroom and the partition plate 21d for the bathroom and the sauna room. And it branches in each of the ceiling back 19 of a bathroom, and the ceiling back 20 of a sauna room, and forms the blower outlets 9a and 9a.

  Since the ceiling back 18 of the rest room, the ceiling back 19 of the bathroom, and the ceiling back 20 of the sauna room are communicated by the wall penetration sleeve 27, the static pressures of these three ceiling backs are almost the same. Therefore, a large amount of ventilation air is not blown out only to the ceiling 18 of the rest room in front. A plurality of vent caps 9b (exhaust ports) are provided near the roof above the ceiling back 18 of the rest room and the ceiling back 19 of the bathroom. Further, a vent cap 9b is provided above the EAG 24 on the ceiling 20 of the sauna room.

  On the other hand, the ceiling plate 22a in the dressing room, the ceiling plate 22b in the rest room, and the ceiling plate 22c in the bathroom are respectively provided with suction ports 28, 28, and 28 through suction ducts 29a, 29a, and 29a. It is connected to the suction side of the second fans 30, 30, 30 disposed on the ceiling 20 of the sauna room. Thereby, the air in the undressing room 11, the rest room 13 and the bathroom 14 is sucked and exhausted by the second fan 30. On the blowing side of the second fan 30, volume dampers 25, 25, 25 and check dampers 26, 26, 26 are provided following the volume damper 25, and suction is performed by reducing the amount of blown air. The amount of air can be adjusted and the air path can be blocked. Then, it is connected to the EAG 24 via check dampers 26, 26, 26.

  The ceiling plate 22b of the rest room and the ceiling plate 22c of the bathroom are provided with ventilation ports 31, 31, which are connected to the OAG 23 by inflow ducts 29b, 29b. In the dressing room 11, as described above, the ventilation port 6b is connected to the OAG 23 via the duct 7b on the outside air intake side.

When air is sucked by the fan 30, the outside air flows in from the OAG 23 and is ventilated by that amount. Therefore, the static pressure in the dressing room 11, the rest room 13, and the bathroom 14 is approximately ± 0. Moreover, the static pressures of the front room 12 and the sauna room 15 which are not ventilated are also approximately ± 0.
On the other hand, in the back of the ceiling, the static pressure of the ceiling back 16 of the unventilated dressing room and the ceiling back 17 of the front room is about ± 0, but the air in the dressing room 11 is blown out by the fan 4 in the rest room. The static pressure is higher than 0 at the ceiling 18, the ceiling 19 of the bathroom, and the ceiling 20 of the sauna room. Therefore, it is possible to ventilate efficiently without creating "stagnation", which is a portion where air does not flow, at the four corners of the ceiling. Furthermore, it is possible to prevent moisture rising from the rest room 13, the bathroom 14 and the sauna room 15 arranged below from entering the ceiling.
Moreover, it is energy-saving if the ceiling backs 18, 19, and 20 of the rest room 13, the bathroom 14, and the sauna room 15 are ventilated by using adjusted air with low humidity blown out by the ventilation fan 4 in the dressing room 11. The fan for ventilation of the high ceilings 18, 19, and 20 can be omitted.

FIG. 1 is a schematic duct diagram showing a ventilation facility such as a ceiling behind the present invention. FIG. 2 is a schematic duct diagram showing a bathroom building using a ventilation facility such as the ceiling of FIG. FIG. 3 shows a schematic duct diagram of a conventional bathroom ventilation facility.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ventilation equipment 2 such as ceiling 1st room 2a Ceiling back 3 2nd room 3a Ceiling back 4 Fan 5a Ceiling board 5b Partition plate 6a Suction port 6b Ventilation port 7a Suction side duct 7b Outside air intake side duct 7c Duct 8 Outside air inlet 9a Air outlet 9b Exhaust port (vent cap)
DESCRIPTION OF SYMBOLS 10 Bathroom building 11 Dressing room 12 Front room 13 Rest room 14 Bathroom 15 Sauna room 16 Ceiling back of dressing room 17 Ceiling back of front room 18 Ceiling back of rest room 19 Ceiling back of bathroom 20 Ceiling back of sauna room 21a Dressing room and Front room partition plate 21b Front room and rest room partition plate 21c Rest room and bathroom partition plate 21d Bathroom and sauna room partition plate 22a Dressing room ceiling plate 22b Rest room ceiling plate 22c Bathroom ceiling plate 22d Sauna room Ceiling plate 23 OAG (Outlet Air Gallery)
24 EAG (Exhaust Air Gallery)
25 Volume damper 26 Check damper 27 Wall penetration sleeve 28 Suction port 29a Suction duct 29b Inflow duct 30 Second fan 31 Ventilation port

Claims (3)

A partition plate between the back of the ceiling or under the floor of the first room with low humidity and the back of the ceiling or under the floor of the second room with high humidity;
With fan for sucking the indoor air of the first room for ventilation,
An exhaust port for exhausting the internal air to the outdoors or a duct communicating with the exhaust port, on the back of the ceiling or under the floor of the second room;
Air sucked by the fan is, the second by blown to the ceiling or under the floor of the room, the ceiling or under the floor, characterized in that the roof or under the floor of the second chamber is a positive pressure Ventilation equipment. The ventilation system under the ceiling or under the floor according to claim 1, wherein the first room is a dressing room and the second room is a bathroom. The interior of the first room is provided with a ventilation port, and the ventilation port communicates with an outside air intake port for taking in outside air from the outside via a duct on the outside air intake side. The ventilation equipment under the ceiling or under the floor according to any one of claims 1 and 2 , wherein the air is introduced into the first room .

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