JP2008241109A - Ventilation system for building, and unit building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation system for a building provided with a sufficient capacity for humidifying the whole building. <P>SOLUTION: This ventilation system S is provided with a ventilator 6 for taking air in to be supplied to rooms 11, 12, and air supply ducts 451, 454 for communicating the ventilator 6 with the rooms 11, 12, in a floor space 24 of the lowest floor. A humidifier 8 is connected to a downstream communicated with the rooms 11, 12 of the ventilator 6, the air supply ducts 451, 454 are connected to a downstream of the humidifier 8, and the ventilator 6 and the humidifier 8 are arranged in the floor space 24. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a building ventilation system and a unit building.

  Conventionally, in the winter season, there is a problem that the humidity of the living room space in the building is lowered by heating the air with a heater such as a heater.

  When the humidity decreases, various problems such as loss of comfort, active virus activity and easy infection with air, and generation of static electricity causing failure of electronic devices are caused.

In order to solve these problems, Patent Document 1 discloses a ventilation device that has a blower and a humidifier in one unit and is installed on the ceiling. Thus, the humidity of the living room space in the building can be intensively managed by the ventilation device having the blower and the humidifier.
JP-A-10-288357

  However, in the configuration of Patent Document 1 described above, the ventilation device in which the blower and the humidifier are integrated into a narrow space behind the ceiling is installed, so the size of the humidifying filter is limited, and the entire building In some cases, the ability to humidify was insufficient.

  Then, this invention aims at providing the unit building provided with the ventilation system of a building provided with sufficient capability for humidifying the whole building, and a ventilation system.

  In order to achieve the above object, a ventilation structure of the present invention comprises a ventilation device that takes air into a room and an air supply duct that communicates the ventilation device with the room in an underfloor space on the lowest floor. A building ventilation system comprising a humidifier connected to a downstream side of the ventilator leading to the room, the air supply duct connected to the downstream side of the humidifier, and the humidifier connected to an underfloor space It is characterized by being arranged in.

  Moreover, the said humidifier is provided with the filter by which water supply is dripped by a water supply apparatus, At least one part of the taken-in air passes through the said filter, It is characterized by the above-mentioned.

  Furthermore, any one of the dehumidifying device, the heating device, and the dehumidifying / heating device can be connected to the downstream side of the ventilation device and the upstream side of the humidifying device, and arranged in the underfloor space.

  The humidifier can be provided with a bypass that bypasses the taken-in air without passing through the filter.

  Moreover, the unit building of this invention is provided with an above-described ventilation system, It is characterized by the above-mentioned.

  Thus, in the ventilation system of the present invention, the humidifier is installed on the downstream side of the ventilator, and the ventilator and the humidifier are disposed in the underfloor space.

  Therefore, since a large thing can be used as a filter of a humidification apparatus by utilizing the space under the space under the floor, the ventilation system provided with sufficient capability for humidifying the whole building can be constructed.

  In addition, the humidifier is of a type that includes a filter in which water is dropped by the water supply device, so that the ability to humidify is increased and the occurrence of condensation can be suppressed.

  Further, any one of the dehumidifying device, the humidifying device, or the dehumidifying / heating device is connected to the downstream side of the ventilation device and the upstream side of the humidifying device, and the humidified air is disposed in the underfloor space, so that the humidified air is Since it does not pass through the dehumidifying device, the humidifying device or the dehumidifying / heating device, it can be efficiently humidified.

  In addition, by providing the humidifier with a bypass that bypasses the taken-in air without passing through the filter, there is no pressure loss in the bypassed air, so that the pressure loss of the air passing through the humidifier can be suppressed. it can.

  Furthermore, the unit building provided with the ventilation system as described above is a comfortable building having sufficient humidity.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the configuration of the unit building U will be described with reference to FIGS.

  As shown in FIG. 1, the unit building U includes a foundation 2 as a foundation, a floor 31 on the first floor, a wall 32 on the first floor, a floor 33 on the second floor, a wall 34 on the second floor, and a roof 35. And.

  In the conventional building C, since a so-called cloth foundation 91 as shown in FIG. 2A is adopted as the foundation, the space under the floor is divided by the cloth foundation 91.

  On the other hand, the foundation 2 of the unit building U provided with the ventilation system S of the present embodiment, as shown in FIG. As shown in FIG. 1, an underfloor space 24 is provided by a frame-shaped foundation portion 21, a bottom plate portion 23, and a floor 31 on the first floor. Is forming.

  And the unit building U provided with the ventilation system S of this Embodiment is connected to the downstream side of the filter box 5 which filters the taken-out outside air in the underfloor space 24, as shown in FIG. A heat exchange ventilator 6 as a ventilator, a dehumidifying / warming device 7 connected to the downstream side of the heat exchanging ventilator 6, a humidifying device 8 connected to the downstream side of the dehumidifying / warming device 7, It has.

  Here, the downstream side means the side close to the end point when the heat exchange ventilation fan 6 is the starting point and the rooms 11 and 12 are the end points.

  The filter box 5 is disposed in the underfloor space 24 and includes a plurality of types of filters therein to remove dust, nitrogen oxides, and the like contained in the outside air taken in by the outside air intake duct 42.

  Also, the outside air intake duct 42 is attached to the outdoor first-floor wall 32 where rainwater is not blown in by the weather cover 41, and the other end is attached to the heat exchange ventilation fan 6, so The exchange ventilation fan 6 communicates with the filter box 5 in the middle.

  Most of the outside air intake duct 42 is disposed in the underfloor space 24, but when passing through the hall 13 or the first floor room 11 in the middle, a piping box 37 is provided and directly exposed indoors. Not covered.

  Furthermore, an inspection port 36 for performing inspection and replacement of the filter is provided on the first floor 31 near the upper side of the filter box 5 so as to be openable and closable.

  The heat exchanging ventilation fan 6 is disposed in the underfloor space 24 and includes an air blower for supplying and exhausting air therein, a route for exhaust from the indoor side to the outdoor side, and a roof from the outdoor side. A path for supplying air to the inside is formed so as to be substantially orthogonal to each other, and a heat exchanger is provided at this intersection to exchange heat between the supply air and the exhaust.

  The heat exchange ventilation fan 6 is connected to the above-described outside air intake duct 42, the exhaust duct 43 for exhausting, the inside air intake duct 44 for taking in the inside air, and the dehumidifying / heating device 7. A dehumidifying / heating device connecting pipe 72 to be connected is connected.

  The exhaust duct 43 has one end attached to the heat exchanging ventilator 6 and the other end attached to the wall 32 on the first floor on the outdoor side where rainwater is prevented from being blown by the weather cover 41. It communicates with the outdoors.

  And most of the exhaust duct 43 is disposed in the underfloor space 24, but, like the outside air intake duct 42 described above, when passing through the indoor, it is covered by the piping box 37 so as not to be exposed directly to the indoor. Is called.

  Further, the inside air intake duct 44 is disposed in the underfloor space 24, one end is attached to the grill 46 provided in the hole 13 in the unit building U, and the other end is attached to the heat exchange ventilation fan 6. The heat exchange ventilation fan 6 is communicated.

  Further, the dehumidifying / heating device connecting pipe 72 communicates the heat exchange ventilation fan 6 with the dehumidifying / heating device 7.

  The outside air intake duct 42 and the dehumidifying / warming device connecting pipe 72 are connected via the heat exchange ventilation fan 6 to form a path for supplying air, and the inside air intake duct 44 and the exhaust duct 43. Are connected via a heat exchange ventilation fan 6 to form a path for exhaust.

  Since the air supply path and the exhaust path are separated from each other, the supply air and the exhaust are not mixed, but the sensible heat of the supply air is generated inside the heat exchange ventilation fan 6. And sensible heat of the exhaust.

  The dehumidifying / warming device 7 dehumidifies and warms the air that has been taken in through the outside air intake duct 42 and then heat-exchanged by the heat exchanging ventilation fan 6, and is heated by the dehumidifying / warming device connecting pipe 72. It is connected to the exchange ventilation fan 6, and is connected to the humidifier 8 through humidifier connection pipes 88 and 88.

  Furthermore, an outdoor unit 71 that is disposed outdoors and performs heat exchange is connected to the dehumidifying / warming device 7 by a connecting means (not shown).

  The humidifier 8 provided in the ventilation system S of the present embodiment is disposed in the underfloor space 24 and humidifies the outside air that has passed through the dehumidifier / heater 7, and is dehumidified by the humidifier connection pipes 88 and 88. It is connected to the heating device 7 and is connected to grills 46,... Provided in the first floor room 11 and the second floor room 12 by air supply ducts 451, 452, 453, and 454.

  As shown in FIGS. 3A and 3B, the humidifier 8 includes a case 81 that accommodates the whole, and three filters 82 that face in the direction in which the humidifier connecting pipes 88 and 88 are connected. 82, 82, a water supply pipe 83 for supplying water to the filters 82, 82, 82, a drain pipe 84 for draining water that has not been absorbed by the passing air and has flowed down to the bottom of the filters 82, 82, 82, and a drain pipe A partition plate 85 that prevents air from flowing into the space on the side where 84 is disposed to prevent pressure loss.

  The water supply pipe 83 as the water supply device is arranged in the underfloor space 24 and is branched from the water pipe, and is formed so that the water supply amount can be adjusted because the electromagnetic valve 48 is installed on the way. .

  Moreover, since the drain pipe 84 is arrange | positioned in the underfloor space 24 and the terminal is connected with the sewer, it can flow the surplus water at the time of humidification to a sewer by natural flow.

  As shown in FIG. 4, the filter 82 includes a case portion 821 that retains the overall shape, and a honeycomb structure portion 822 that constitutes the main body of the filter 82 that is stored in the case portion 821. A water supply pipe 83 is inserted in the upper part of the case part 821.

  The water supply pipe 83 inserted into the upper part of the case portion 821 is connected to the water supply pipe 47 connected to the water pipe, and a plurality of small holes 83a,. When water is discharged, water is discharged from the small holes 83a, and this water flows down the entire honeycomb structure portion 822.

  The honeycomb structure portion 822 is provided with a large number of small chambers formed in a hexagonal cross section by folding synthetic fibers and the like, and since the small chambers are formed to be inclined, when humidifying, The taken-in air passes through this inclined small room while moving upward.

  As shown in FIG. 1, the air supply duct 451 is disposed in the underfloor space 24, and one end is connected to the humidifier 8 and the other end is connected to the air supply duct 452.

  The air supply duct 452 is disposed inside the wall 32 on the first floor, and has one end connected to the air supply duct 451 and the other end connected to the air supply duct 453.

  The air supply duct 453 is arranged inside the floor 33 on the second floor, and one end is connected to the air supply duct 452 and the other end is connected to the grill 46 provided in the room 12 on the second floor. ing.

  Similarly, the air supply duct 454 is disposed in the underfloor space 24, and one end is connected to the humidifier 8 and the other end is connected to the grill 46 provided in the room 11 on the first floor.

  Next, the effect | action of the ventilation system S of this Embodiment is demonstrated.

  First, the flow of air during supply and exhaust will be described with reference to FIG.

  In the air supply, the outdoor air taken in through the outside air intake duct 42 is dehumidified through the heat exchange ventilator 6 after the dust and nitrogen oxides are removed by the filter box 5 installed on the way. Dehumidifying and warming by the heating device 7, humidified by the humidifying device 8, introduced into the rooms 11, 12 through the air supply ducts 451, 452, 453, 454 and discharged from the grills 46,.

  When humidifying, as shown in FIGS. 3A and 3B, the air taken in from the humidifier connecting pipes 88, 88 passes through the filters 82, 82, 82, and passes through the respective filters 82. When passing, it moves upward in a slanted approximately hexagonal small chamber.

  At the time of this movement, it moves opposite to the water flowing down while being contained in the filter 82, so that the water flowing down can be efficiently contained.

  Thereafter, the air containing water passing through all the filters 82, 82, 82 is discharged to the air supply ducts 451, 454.

  On the other hand, in the exhaust, indoor air taken into the inside air intake duct 44 through the grill 46 is discharged to the outside through the heat exchange ventilation fan 6 and through the exhaust duct 43.

  Here, the supply air and the exhaust air are performed at the same time, and the heat is exchanged with each other when passing through the heat exchanging ventilation fan 6, whereby the cold air is warmed and the warm air is cooled.

  Therefore, for example, when taking in outside air in winter, the heat of the inside air heated by heating is given to the cold outside air, so that the outside air can be taken in while warming up. The temperature difference can be reduced to prevent heat shock.

  Thus, in the ventilation system S of the present invention, the humidifier 8 is installed on the downstream side of the heat exchange ventilator 6 as a ventilator, and the ventilator 6 and the humidifier 8 are arranged in the underfloor space 24.

  And, it is possible to suppress the virus activity indoors and reduce the generation of static electricity by humidifying the air supplied indoors with the humidifying device 8, so that a comfortable living space is constructed. be able to.

  Moreover, since the large thing can be used as the filter 82 of the humidification apparatus 8 by utilizing the wide space of the underfloor space 24, sufficient capability for humidifying the whole unit building U can be provided.

  That is, in the cloth foundation 91 of the conventional building C as shown in FIG. 2A, the space under the floor is divided by the cloth foundation 91, whereas the foundation 2 of the unit building U is shown in FIG. As shown to b), it has the frame-shaped foundation part 21 used as an outer peripheral part, the columnar foundation parts 22 ... which are scattered inside this frame-shaped foundation part 21, and the bottom plate part 23 which covers a bottom face. Therefore, the underfloor space 24 is not divided.

  Therefore, a large-sized filter 82 can be used as the filter 82 of the humidifying device 8 by using the wide space under the floor 24.

  Moreover, the ventilation system S provided with many apparatuses, such as the heat exchange ventilation fan 6, the dehumidification / heating apparatus 7, and the humidification apparatus 8, can be constructed | assembled using the large space called the underfloor space 24. FIG.

  Since the humidifying device 8 is arranged in the underfloor space 24, the water supply pipe 47 and the drain pipe 49 necessary for water supply and drainage can also be arranged in the underfloor space 24. Therefore, the water supply pipe 47 and the drain pipe 49 are installed very easily. it can.

  In addition, even if a water leak occurs for any reason, the humidifier 8 is disposed in the underfloor space 24, so that the underfloor space 24 is only submerged, and there is a risk that household goods or the like may get wet. Absent.

  Furthermore, the humidifier 8 is provided with the filter 82 to which water is dropped by the water supply pipe 47, so that the ability to humidify is increased and the occurrence of condensation can be suppressed.

  That is, in the ventilation system S of the present embodiment, since the so-called vaporization type device provided with the filter 82 is used as the humidifying device 8, the area for water to evaporate is wide and the saturation efficiency of water vapor is increased.

  Thus, the whole unit building U can be humidified because the capability to humidify becomes high.

  Further, since the vaporizing humidifier 8 provides a moisture amount that allows air to be held in a natural state, the vaporizing humidifier 8 is not saturated and can suppress the occurrence of condensation.

  Thus, by suppressing the occurrence of condensation, it is possible to suppress the occurrence of mold inside the air supply ducts 451, 452, 453, and 454 that connect the humidifier 8 and the rooms 11 and 12.

  Further, since the vaporizing humidifier 8 provided with the filter 82 evaporates and humidifies only with the sensible heat of the air, it is not necessary to add heat energy or the like, and energy saving can be achieved.

  And since it supplies water using the water supply pipe | tube 47 branched from the water pipe, it is not necessary to supply water manually.

  In addition, the ventilation device 8 installed in the ventilation system S of the present embodiment includes a plurality of filters 82, thereby providing a higher humidification capability and reducing pressure loss.

  That is, if the humidification capability is increased, the thickness of the filter 82 may be increased in the ventilation direction. However, when the thickness of the filter 82 is increased, the hexagonal chamber is inclined, so that the vicinity of the upper end of the filter 82 and The small room near the lower end is not used and the effective area for evaporation is reduced.

  Therefore, by providing a plurality of filters 82 and increasing the total thickness of the filters 82, the ability to humidify can be enhanced without drastically reducing the effective area for evaporation.

  Furthermore, the dehumidifying / warming device 7 is connected to the downstream side of the heat exchange ventilation fan 6 as the ventilation device and the upstream side of the humidification device 8 and disposed in the underfloor space 24, so that the humidified air is exchanged with the heat exchange ventilation fan 6. Since it does not pass through the dehumidifying / heating device 7, it can be efficiently humidified.

  In other words, if the dehumidifying / warming device 7 is disposed downstream of the humidifying device 8, even if humidification is performed by the humidifying device 8, it is dehumidified on the downstream side. Humidity cannot be increased.

  Further, if the heat exchange ventilation fan 6 is installed on the downstream side of the humidifying device 8, the outside air that is cold and has a small saturated water vapor amount is humidified by the humidifying device 8, so that the efficiency of humidification is low and this cold When the outside air is warmed by the heat exchange ventilation fan 6, the humidity is lowered.

  On the other hand, if the dehumidifying / warming device 7 is arranged on the downstream side of the heat exchange ventilation fan 6 and the humidifying device 8 is arranged on the downstream side of the dehumidifying / heating device 7, there is no problem as described above, and the efficiency The air in the rooms 11 and 12 can be increased by humidifying the air.

  Moreover, the humidifier 8 can stably humidify the air by humidifying the air once dehumidified by the dehumidifier / heater 7.

  In other words, the humidity of the air taken into the humidifying device 8 is not stable when dehumidifying, but the humidity of the air taken into the humidifying device 8 is stable when dehumidifying. Therefore, when the humidifying device 8 humidifies, the solenoid valve 48 is used. The humidity can be adjusted by adjusting the water supply amount.

  Next, with reference to FIGS. 6A and 6B, a ventilation system S1 including a humidifier 8A of a form different from the above embodiment will be described. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  In the above-described embodiment, the case where the partition plate 85 is installed inside the case 81 of the humidifier 8 has been described. However, in this embodiment, the slide door 87 is installed inside the case 81 of the humidifier 8. Will be described.

  As shown in FIG. 6A, the humidifier 8 </ b> A of this embodiment includes a slide door 87 inside the case 81.

  The sliding door 87 is disposed on the side of the first upstreammost filter 82 inside the case 81, forms the same surface as the surface of the filter 82, and has a gap on the side of the filter 82. Is buried.

  Furthermore, the slide door 87 can slide in a direction orthogonal to the air flow to open and close the gap on the side of the filter 82.

  When humidifying, by sliding the slide door 87, it is possible to provide a bypass 89 that bypasses the air without passing through the filter 82.

  That is, when only a part of the building is ventilated, as shown in FIG. 6B, the opening / closing devices 86 and 86 are provided, and one humidifier connecting pipe 88 and one air supply duct 454 are closed.

  If it does so, it can ventilate only through the other humidifier connection pipe 88, but conversely, there is a possibility that the humid air will not reach the indoor rooms 11 and 12 due to the decrease in the total air volume.

  Therefore, in this embodiment, the necessary air volume can be obtained by adjusting the opening / closing of the slide door 87 inside the case 81.

  That is, when the one humidifier connecting pipe 88 and the one air supply duct 454 are closed by the opening / closing devices 86, 86, the slide door 87 is slid to create a gap leading to the bypass 89 on the side of the filter 82. Keep it open.

  Then, the air passing through this gap is mixed with the air that has passed through the filters 82, 82, 82 while maintaining the original pressure with almost no pressure loss, and is discharged to the air supply duct 451. The Rukoto.

  Therefore, since the air discharged to the air supply duct 451 can have a predetermined pressure as a whole, the humidified air can be introduced to the indoor rooms 11 and 12.

  The amount of air passing through the filters 82, 82, and 82 can be adjusted by opening and closing the slide door 87, so that the humidity can also be adjusted.

  Other configurations and operational effects are substantially the same as those in the above-described embodiment, and thus the description thereof is omitted.

  The preferred embodiments and examples of the present invention have been described in detail with reference to the drawings, but the specific configuration is not limited to the embodiments or examples, and does not depart from the gist of the present invention. A degree of design change is included in the present invention.

  For example, in the present embodiment and examples, the case where the filter 82 in which the main body of the filter 82 is formed in a honeycomb structure is used as the humidifier 8 is not limited to this, but a vaporizing humidifier is used. Any filter may be used.

  In the present embodiment and examples, the case where the dehumidifying / warming device 7 is arranged has been described. May be.

  Furthermore, in this Embodiment and the Example, although the case where ventilation system S, S1 was applied to the unit building U was demonstrated, it is not limited to this, It applies to the building of a conventional construction method, a building, etc. You may do.

It is explanatory drawing explaining the whole structure of a unit building provided with the ventilation system of the best embodiment of this invention. It is a perspective view explaining the structure of the foundation of a unit building, (a) is the foundation of a conventional building, (b) is the foundation of a unit building. It is sectional drawing explaining the internal structure of the ventilation apparatus arrange | positioned at the ventilation system of the best embodiment of this invention, (a) is a top view, (b) is a side view. It is a perspective view explaining the structure of the filter of the ventilation apparatus arrange | positioned at the ventilation system of the best embodiment of this invention. It is explanatory drawing explaining the flow of the intake and exhaust of the ventilation system of the best embodiment of this invention. It is sectional drawing explaining the internal structure of the ventilation apparatus arrange | positioned at the ventilation system of an Example. (A) is a case where the whole building is humidified, and (b) is a case where a part of the building is humidified.

Explanation of symbols

U unit building S, S1 Ventilation system 11, 12 Room 24 Underfloor space 451, 452, 453, 454 Air supply duct 6 Heat exchange ventilator (ventilator)
7 Dehumidification / Warming Device 72 Dehumidification / Warming Device Connection Tube 8, 8A Humidification Device 82 Filter 83 Water Supply Pipe (Water Supply Device)
87 Sliding door 88 Humidifier connection pipe

Claims (5)

A ventilation system for a building comprising a ventilation device that takes in air and supplies the air to a room, and an air supply duct that communicates the ventilation device and the room, in a lower floor space of the lower floor,
A humidifier is connected to the downstream side of the ventilator leading to the room, and the air supply duct is connected to the downstream side of the humidifier,
A building ventilation system, wherein the humidifier is disposed in an underfloor space.   2. The building ventilation system according to claim 1, wherein the humidifier includes a filter to which water is dropped by a water supply device, and at least a part of the taken-in air passes through the filter.   The dehumidifying device, the heating device, or the dehumidifying / heating device is connected to the downstream side of the ventilation device and the upstream side of the humidifying device, and is arranged in the underfloor space. The building ventilation system according to claim 2.   The building humidification system according to claim 2 or 3, wherein the humidifying device is provided with a bypass for bypassing the taken-in air without passing through the filter.   A unit building comprising the building ventilation system according to any one of claims 1 to 4.

Images