JP5530282B2 - Ventilation air conditioning system and building - Google Patents

Description

  The present invention relates to a ventilation air conditioning system for buildings and a building equipped with the ventilation air conditioning system.

  Conventionally, a ventilation air-conditioning system capable of simultaneously performing ventilation and air conditioning in a building floor space is known (see, for example, Patent Document 1).

JP 2009-276041 A

  However, the conventional ventilation air-conditioning system such as Patent Document 1 has a complicated structure in which many ducts are arranged from the ventilation device and the air-conditioning device toward the space above the floor, and the construction work and the maintenance work are complicated. There was.

  Therefore, an object of the present invention is to provide a ventilation air-conditioning system capable of easily performing construction work and maintenance work with a simple structure having few ducts, and a building including the ventilation air-conditioning system.

  In order to achieve the above object, a ventilation air-conditioning system according to the present invention includes a ventilation device and an air-conditioning device installed in a building having a floor space having a first space and a second space. A first space air supply port and a second space air supply port are respectively provided facing the first space and the second space, and the ventilation device, the air conditioner, and the first space are provided. The space air inlet and the second space air inlet are connected to each other by a first space duct and a second space duct via a common ventilation air conditioning branching unit, respectively. The air conditioning branching unit includes a first space branch air passage that communicates the first space ventilation air blowing portion of the ventilation device, the first space air conditioning air blowing portion of the air conditioning device, and the first space duct. , Ventilation air outlet for second space of said ventilator and said air conditioner Said second space for conditioned air blowout portion second space duct is characterized in that it is divided into a second space for the branch channel communicating.

  Here, the ventilation device and the air conditioning device may be an integrated ventilation air conditioning device.

  The ventilation air conditioner is an indoor unit of a heat pump type air conditioner, and may be connected to an outdoor unit installed outdoors.

  Furthermore, a backflow prevention valve may be provided in the first space-conditioned air blowing portion and the second space-conditioned air blowing portion in the air conditioner.

  Moreover, the said ventilation apparatus and the said air conditioner are good to be installed in the underfloor space of the said building.

  Moreover, the said air conditioner is good to provide the blowing part for underfloor.

  Further, the underfloor space may be surrounded by the floor of the building, the foundation bottom concrete, and the foundation side wall concrete, and a foundation heat insulating material may be attached to the foundation side wall concrete.

  The building of the present invention includes the above-described ventilation air conditioning system.

  In such a ventilation air conditioning system of the present invention, a ventilation device and an air conditioning device are installed in a building having a floor space having a first space and a second space.

  A first space air supply port and a second space air supply port are respectively provided facing the first space and the second space of the floor space of the building, and the ventilation device, the air conditioning device, and the first space are provided. The space air supply port and the second space air supply port are connected to each other by a first space duct and a second space duct through a common ventilation air conditioning branching unit.

  In addition, the ventilation air-conditioning branch unit includes a first space branch flow path in which the first space ventilation air blowing portion of the ventilation device, the first space air-conditioning air blowing portion of the air conditioning device, and the first space duct communicate with each other. The second space ventilation air blowing portion of the ventilator, the second space air conditioning air blowing portion of the air conditioner, and the second space branch passage communicating with the second space duct are configured. Yes.

  With such a configuration, the branching portion of the duct is simplified due to the presence of the ventilation / air conditioning branching unit, so that a simple structure with few ducts can be achieved, and construction work and maintenance work can be easily performed.

  Here, when the ventilator and the air conditioner are integrated, the extra space is not required compared to the case where the ventilator and the air conditioner are separate. Furthermore, the ventilation device, the air conditioning device, and the ventilation air conditioning branching unit can be easily assembled.

  In addition, when the ventilation air conditioner is an indoor unit of a heat pump type air conditioner and is connected to an outdoor unit installed outdoors, the heat pump is used, so that the energy saving performance can be improved. .

  Furthermore, when the backflow prevention valve is provided in the 1st space conditioned air blowing part and the 2nd space conditioned air blowing part in the air conditioner, the air conditioning operation is not performed and only the ventilation operation is performed. In this case, it is possible to prevent the ventilation function from being deteriorated due to the ventilation air flowing into the first space conditioned air blowing section or the second space conditioned air blowing section.

  Further, when the ventilation device and the air conditioner are installed in the under-floor space of the building, the over-floor space is not occupied and can be used effectively, and the design appearance is good.

  In addition, when the air conditioner includes an underfloor blowing section, warm air is blown out from the underfloor blowing section, and convection is performed in the underfloor space, so that the underfloor heating can be performed to uniformly warm the overfloor space.

  In addition, the underfloor space is surrounded by the floor of the building, the foundation floor concrete, and the foundation side wall concrete, and when the foundation side wall concrete is attached to the foundation side wall concrete, the underfloor space has a heat insulating structure. In particular, energy-efficient underfloor heating can be performed without leaking the heat of the air in the underfloor space to the outside as much as possible.

  Such a building of the present invention is configured to include the ventilation air conditioning system of the present invention.

  Since it is such a structure, it can be set as the building which show | plays the effect of the ventilation air conditioning system of this invention mentioned above.

It is explanatory drawing explaining the schematic structure of the building provided with the ventilation air conditioning system of the Example. It is explanatory drawing which shows schematic structure of the ventilation air conditioner of an Example. In the ventilation air conditioning system of an Example, it is explanatory drawing which shows the state which performed ventilation operation. In the ventilation air conditioning system of an Example, it is explanatory drawing which shows the state which performed the air conditioning driving | operation of heating or cooling which has an immediate effect. It is explanatory drawing which shows the state which performed the air conditioning driving | operation of underfloor heating in the ventilation air conditioning system of an Example. In the ventilation air-conditioning system of an Example, it is explanatory drawing which shows the state which performed the air-conditioning driving | operation of immediate heating and underfloor heating.

  DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention will be described based on examples shown in the drawings.

  First, the configuration of the embodiment will be described.

  FIG. 1 shows a schematic configuration of a building 1 provided with the ventilation air conditioning system of the embodiment.

  First, such a building 1 includes a foundation bottom concrete 1b constructed as foundation insulation, a foundation side wall concrete 1c erected on the side edge, an outer wall portion 1d erected on the foundation side wall concrete 1c, and an outer wall thereof. It is mainly comprised from the ceiling part 1e which block | closes the upper end opening of the part 1d.

  The space surrounded by the ceiling portion 1e and the outer wall portion 1d is divided into an underfloor space 4 and an above-floor space 5 by a floor portion 1a as a floor of the first floor portion.

  Furthermore, the floor space 5 is provided with an intermediate wall 1f and a floor portion 1g as a floor of the second floor portion, and a first-floor room space 51 as a first space and a second-floor room space 52 as a second space. And a staircase space 53 as a common space.

  In addition, illustration of the staircase in the staircase space 53 was abbreviate | omitted so that the space arrangement in the building 1 could be understood easily.

  Here, an intermediate wall 1f between the staircase space 53 as the shared space and the first-floor room space 51 is provided with a door 51a as an entrance and entrance between the lower side of the door 51a and the floor portion 1a. Is provided with a gap 61 as an exhaust port for the first space ventilation air conditioning.

  Further, a door 52a as an entrance is provided in the intermediate wall 1f between the staircase space 53 as a shared space and the second-floor room space 52, and between the lower side of the door 52a and the floor portion 1g. Is provided with a gap 62 as an exhaust port for second space ventilation air conditioning.

  Furthermore, the foundation heat insulating material 18 is affixed to the underfloor space 4 side of the foundation side wall concrete 1c, and it has a heat insulation structure in which the heat of the air in the underfloor space 4 does not leak as much as possible outdoors.

  As the basic heat insulating material 18, glass wool or the like is preferably used.

  In the ventilation air conditioning system of this embodiment, an indoor unit 3 of an air conditioner as a ventilation air conditioner is installed in the underfloor space 4.

  The indoor unit 3 of the air conditioner as the ventilation air conditioner is an integrated unit of the ventilator 3A and the air conditioner 3B, and has a ventilation function, an air conditioning function, and a dehumidifying function.

  Here, the indoor unit 3 of the air conditioner as the ventilation air conditioner is a heat pump type, and is connected to the outdoor unit 2 installed outside the building 1.

  In addition, a heat medium circulation pipe 21 connected to the outdoor unit 2 is connected to the inside of the indoor unit 3 of the air conditioner.

  Further, as shown in FIG. 2, the indoor unit 3 of the air conditioner includes an air exhaust space 30a and a ventilating / supplying space 30b in the ventilator 3A, and an air conditioner in the air conditioner 3B. It is partitioned into a space 30c.

  Here, in the ventilation exhaust space 30a and the ventilation / supply space 30b in the indoor unit 3 of the air conditioner, the air flow is in the reverse direction, and the upstream side and the downstream side are reversed.

  Further, the ventilation / air supply space 30b and the air conditioning space 30c have a forward air flow, and the upstream side and the downstream side are the same.

  And in the ventilation exhaust space 30a in the indoor unit 3 of the air conditioner, a ventilation suction part 37 is provided on the upstream side, and an inside air blowing part 38 is provided on the downstream side thereof, and between them. A fan 8 is provided as a forced blowing means.

  Further, in the ventilation / air supply space 30b of the indoor unit 3 of the air conditioner, a first portion in which an outdoor air suction portion 31 is provided on the upstream side, and a fan 8 is provided as a forced blowing means on the downstream side. A first-floor ventilation air blowing section 33A as a space ventilation air blowing section and a second-floor ventilation air blowing section 33B as a second space ventilation air blowing section are provided.

  Here, the ventilation / exhaust space 30a and the ventilation / supply space 30b are partitioned by a partition member 9 made of a heat exchange element.

  The partition member 9 made of this heat exchange element has thermal conductivity so that the dirty air in the ventilation / exhaust space 30a flows into the ventilation / air supply space 30b and the purified air is not contaminated. Non-breathable materials such as high metal plates are preferably used.

  Further, the air conditioning space 30c in the indoor unit 3 of the air conditioner includes an air conditioned air suction portion 32A and an underfloor air conditioned air suction portion 32B on the upstream side, and a fan as a forced blowout means on the downstream side. The first floor air-conditioning air blowing section 35 as a first space air-conditioning air blowing section, the second floor air-conditioning air blowing section 36 as a second space air-conditioning air blowing section, and an underfloor blowing section. 34.

  Here, a backflow prevention valve 35 a is provided in the first-floor air-conditioning air outlet 35.

  The second-floor air-conditioning air outlet 36 is also provided with a backflow prevention valve 36a.

  Further, a heat exchanger 3b is provided in the air conditioning space 30c of the indoor unit 3 of the air conditioner, and is partitioned into an upstream space and a downstream space.

  In addition, although illustration was abbreviate | omitted, the heat-medium circulation pipeline 21 from the outdoor unit 2 is connected to this heat exchanger 3b.

  And the ventilation air-conditioning branch unit 3C is provided in the downstream of the ventilation air supply space 30b and the air conditioning space 30c of the indoor unit 3 of the air conditioner.

  The ventilation / air conditioning branch unit 3C is divided into a first-floor branch channel 39a as a first space branch channel and a second-floor branch channel 39b as a second space branch channel.

  Here, on the upstream side of the first-floor branch channel 39a, a first-floor air blowing portion 39A as a first space air blowing portion is provided, and the first-floor air blowing portion 39A is provided on the downstream side. The first floor ventilation air outlet 33A and the first floor air-conditioning air outlet 35 are communicated with each other.

  Further, on the upstream side of the second-floor branch channel 39b, a second-floor air blowing portion 39B as a second space air blowing portion is provided, and the second-floor air blowing portion 39B is provided on the downstream side. The floor ventilation air outlet 33B and the second-floor air-conditioning air outlet 36 communicate with each other.

  On the other hand, in the building 1, as shown in FIG. 1, the outer wall portion 1 d is provided with an outside air inlet 10 and an inside air outlet 11.

  Further, the floor 1 a of the first-floor room space 51 as the first space in the building 1 has a first floor air supply port 12 as a first space air supply port with a grill and a grill communicating with the underfloor space 4. A separate air supply port 13 and an underfloor air conditioning exhaust port 14 with a grill are provided.

  The floor 1g of the second-floor room space 52 as the second space in the building 1 is provided with a second-floor air supply port 15 as a second space air-supply port with a grill.

  Further, the floor portion 1a of the staircase space 53 as a shared space in the building 1 is provided with a ventilation exhaust port 16 with a grill and an air conditioning exhaust port 17 with a grill.

  And the outside air suction part 31 and the outside air inlet 10 of the indoor unit 3 of the air conditioner as a ventilation air conditioner are connected via a duct 71.

  The underfloor air-conditioning air suction part 32 </ b> B and the underfloor air-conditioning exhaust port 14 are connected via a duct 72.

  Furthermore, the conditioned air suction part 32 </ b> A and the air conditioning exhaust port 17 are connected via a duct 73.

  In addition, a filter box 19 as an air cleaning means is provided at a relay portion of the ducts 71, 72, 73.

  In addition, as shown in FIG. 2, the filter box 19 is provided with a partition wall 19a that prevents mixing of the ventilation air and the conditioned air.

  The first-floor air outlet 39A and the first-floor air supply port 12 of the ventilation / air-conditioning branch unit 3C are connected via a duct 74 serving as a first space duct.

  Further, the second floor air outlet 39B and the second floor air supply port 15 of the ventilation / air conditioning branching unit 3C are connected via a duct 75 as a second space duct.

  The lower part of the duct 75 is disposed in the underfloor space 4 as in the other ducts, but the upper part is provided in the intermediate wall 1f and the floor 1g as the floor of the second floor part. It is arranged.

  The ventilation suction portion 37 and the ventilation exhaust port 16 of the indoor unit 3 of the air conditioner as the ventilation air conditioner are connected via a duct 76.

  Further, the inside air outlet 38 and the inside air discharge port 11 are connected via a duct 77.

  As shown in FIG. 1, the indoor unit 3 of the air conditioner as the ventilation air conditioner incorporates a control unit 3a for controlling the indoor unit 3 of the air conditioner.

  Further, the floor space 5 is provided with a controller (not shown) for setting the ventilation air conditioning system of this embodiment to a desired operation pattern.

  And a setting signal is transmitted from this controller to the control part 3a, and the indoor unit 3 of the air conditioner as a ventilation air conditioner is controlled based on the setting signal.

  Next, the operation pattern of the ventilation air conditioning system of an Example is demonstrated.

  3 to 6, the flow of air for ventilation is indicated by black arrows, the flow of air for air conditioning is indicated by white arrows, and the heat transfer of air for underfloor air conditioning is indicated by dotted arrows. To do.

  First, the pattern at the time of ventilation operation is demonstrated.

  At present, the ventilation operation in the space 5 above the floor of the building 1 must be performed regardless of whether it is continuous or intermittent.

  During this ventilation operation, the control unit 3a sucks in air for ventilation from the outside air suction unit 31 of the indoor unit 3 of the air conditioner as a ventilation air conditioner, and the first floor ventilation air blowing unit 33A and the second floor ventilation air. Ventilation air is blown out from the blowing section 33B, ventilation air exhausted from the ventilation suction section 37 is sucked, and the air is blown out from the inside air blowing section 38.

  When the control is performed as described above, as shown in FIG. 3, the ventilation air (outside air) sucked from the outside air inlet 10 passes through the duct 71 and is cleaned by the filter box 19 of the relay section. The air is sucked from the outside air suction portion 31 of the indoor unit 3 of the air conditioner.

  Here, the ventilation air blown out from the first floor ventilation air blowing section 33A passes through the duct 74 from the first floor air blowing section 39A via the first floor branch flow path 39a of the ventilation air conditioning branching unit 3C. Then, the air is supplied to the first-floor room space 51 from the first-floor air supply opening 12.

  Then, after the inside of the first floor room space 51 is ventilated, it is exhausted from the gap 61 of the door 51a as the first space ventilation air-conditioning exhaust port to the stair space 53 as the shared space, and the stair space 53 is also ventilated, and then the ventilation space The air is sucked from the ventilation suction portion 37 through the duct 76 from the exhaust port 16 and then blown out from the inside air blowing portion 38, and is exhausted from the inside air discharge port 11 to the outside of the building 1 through the duct 77.

  The ventilation air blown out from the second-floor ventilation air blowing section 33B passes through the duct 75 from the second-floor air blowing section 39B via the second-floor branch flow path 39b of the ventilation air conditioning branching unit 3C. Air is supplied to the second-floor room space 52 from the second-floor air supply port 15.

  Then, after ventilating the interior of the second-floor room 52, the air is exhausted from the gap 62 of the door 52a as the second space ventilation air-conditioning exhaust port to the stair space 53 as a shared space, and the stair space 53 is also ventilated. Along with the ventilation air that ventilates the living room space 51, the air is exhausted from the ventilation exhaust port 16 through the duct 76, sucked in from the ventilation suction portion 37, then blown out from the internal air blowing portion 38, and then passed through the duct 77 to discharge the internal air. The air is exhausted from the exit 11 to the outside of the building 1.

  That is, this circulation is repeated.

  Next, the pattern at the time of ventilation air conditioning operation at the time of heating is demonstrated.

  First, when it is desired to warm the floor space 5 only by heating with immediate effect, the control unit 3a sucks in air for ventilation from the outside air suction unit 31 of the indoor unit 3 of the air conditioner as a ventilation air conditioner. Ventilation air is blown out from the floor ventilation air blowing section 33A and the second floor ventilation air blowing section 33B, the ventilation air exhausted from the ventilation suction section 37 is sucked in and blown out from the inside air blowing section 38, Air conditioning air is sucked in from the conditioned air suction section 32A, and air conditioning air (warm air) is blown out from the first floor conditioned air blowing section 35 and the second floor conditioned air blowing section 36.

  When the control is performed in this way, as shown in FIG. 4, the ventilation air (outside air) sucked from the outside air inlet 10 passes through the duct 71 and is cleaned by the filter box 19 of the relay unit. The air for air conditioning sucked in from the outside air suction portion 31 of the indoor unit 3 of the air conditioner and sucked from the air conditioning exhaust port 17 passes through the duct 73 and is purified by the filter box 19 of the relay portion. It is sucked from the air-conditioning air suction part 32A of the indoor unit 3 of the conditioner.

  Here, the ventilation air blown from the first floor ventilation air blowing section 33A and the air conditioning air blown from the first floor air conditioning air blowing section 35 (warm air) are used for the first floor of the ventilation air conditioning branch unit 3C. The air is supplied from the first-floor air outlet 12A through the duct 74 to the first-floor room space 51 through the branch flow path 39a.

  After the first floor room space 51 is ventilated and air-conditioned, after being exhausted from the gap 61 of the door 51a as the first space ventilation air-conditioning exhaust port to the stair space 53 as the shared space, the stair space 53 is also ventilated and air-conditioned. The air equivalent to the ventilation air passes through the duct 76 from the ventilation exhaust port 16, is sucked in from the ventilation suction portion 37, and then blown out from the inside air blowing portion 38, passes through the duct 77, and flows into the inside air discharge port 11. The air equivalent to the air for air conditioning is exhausted from the air conditioning exhaust port 17 into the duct 73.

  The ventilation air blown from the second-floor ventilation air blowing section 33B and the air-conditioning air (warm air) blown from the second-floor air-conditioning air blowing section 36 are branched into the second-floor of the ventilation air-conditioning branch unit 3C. The air is supplied to the second-floor room space 52 from the second-floor air supply port 15 through the duct 75 from the second-floor air outlet 39B via the flow path 39b.

  After the second-floor room 52 is ventilated and air-conditioned, the first-floor room 51 is ventilated and air-conditioned through the gap 62 of the door 52a as the second space ventilating air-conditioning exhaust port to the staircase space 53 as the shared space. After ventilating and air-conditioning the staircase space 53 together with the subsequent ventilation air and air conditioning air, the air equivalent to the ventilation air is exhausted together with the air equivalent to the ventilation air in the first-floor room space 51 and the exhaust for ventilation. The air is sucked from the venting suction portion 37 through the duct 16 and then blown out from the inside air blowing portion 38, and is exhausted from the inside air discharge port 11 to the outside of the building 1 through the duct 77 and for air conditioning. The air corresponding to the air is exhausted into the duct 73 from the air conditioning exhaust port 17 together with the air corresponding to the air conditioning air in the first-floor room space 51.

  That is, this circulation is repeated.

  Next, when it is desired to warm the floor space 5 only by underfloor heating, the control unit 3a sucks in ventilation air from the outside air suction unit 31 of the indoor unit 3 of the air conditioner as a ventilation air conditioner. Ventilation air is blown out from the ventilation air blowing section 33A and the second floor ventilation air blowing section 33B, the ventilation air exhausted from the ventilation suction section 37 is sucked in, blown out from the inside air blowing section 38, and underfloor air conditioning Underfloor air conditioning air is sucked from the air suction part 32B, and underfloor air conditioning air (warm air) is blown out from the underfloor air blowing part 34.

  When the control is performed in this way, as shown in FIG. 5, the ventilation air (outside air) sucked from the outside air inlet 10 passes through the duct 71 and is cleaned by the filter box 19 of the relay unit. The air for the underfloor air conditioning sucked in from the outside air suction portion 31 of the indoor unit 3 of the air conditioner and the air for the underfloor air conditioning sucked in from the underfloor air conditioning exhaust port 14 passes through the duct 72 and is purified by the filter box 19 of the relay portion. Then, the air is sucked from the under-floor conditioned air suction portion 32B of the indoor unit 3 of the air conditioner.

  Here, the ventilation air blown out from the first floor ventilation air blowing section 33A passes through the duct 74 from the first floor air blowing section 39A via the first floor branch flow path 39a of the ventilation air conditioning branching unit 3C. Then, the air is supplied to the first-floor room space 51 from the first-floor air supply opening 12.

  Also, the air for underfloor air conditioning (warm air) blown out from the underfloor blowing section 34 is convected mainly in the underfloor space 4, and the heat is transferred to the above-floor space 5 via the floor 1a, and the above-floor space. The air for underfloor air-conditioning, which warms 5 uniformly and evenly and overflows the underfloor space 4 by blowing, is supplied to the first-floor room space 51 from another air inlet 13.

  Then, after air-conditioning the first-floor room space 51, the air corresponding to the air for the underfloor air conditioning blown out from the underfloor blowing section 34 is exhausted from the underfloor air conditioning exhaust port 14 to the duct 72, and the remaining ventilation air The air corresponding to the air is exhausted from the gap 61 of the door 51a as the first space ventilation air conditioning exhaust port to the stair space 53 as the shared space, and after the stair space 53 is ventilated, the air is exhausted from the ventilation exhaust port 16 to the duct. Then, the air is sucked from the ventilation suction portion 37 and then blown out from the inside air blowing portion 38, and is exhausted from the inside air discharge port 11 to the outside of the building 1 through the duct 77.

  Further, the ventilation air blown out from the second-floor ventilation air blowing section 33B passes through the duct 75 from the second-floor air blowing section 39B via the second-floor branch flow path 39b of the ventilation air conditioning branching unit 3C. Air is supplied to the second-floor room space 52 from the second-floor air supply port 15.

  Then, after the inside of the second-floor room space 52 is ventilated, the air is exhausted from the gap 62 of the door 52a as the second space ventilation air-conditioning exhaust port to the staircase space 53 as the shared space, and then the first-floor room space 51 is ventilated. After ventilating the staircase space 53 together with the ventilation air excluding the air equivalent to the air for the underfloor air conditioning, the duct 76 is connected from the ventilation exhaust port 16 together with the air equivalent to the ventilation air in the first floor room space 51. Then, the air is sucked in from the ventilation suction portion 37 and then blown out from the inside air blowing portion 38, passes through the duct 77, and is exhausted from the inside air discharge port 11 to the outside of the building 1.

  That is, this circulation is repeated.

  Next, when the floor space 5 is to be warmed by both immediate heating and underfloor heating, the control unit 3a is used for ventilation from the outside air suction unit 31 of the indoor unit 3 of the air conditioner as a ventilation air conditioner. The air for ventilation is blown out from the first floor ventilation air blowing section 33A and the second floor ventilation air blowing section 33B, and the ventilation air exhausted from the ventilation suction section 37 is sucked into the inside air. The air for air conditioning is sucked from the air conditioning air suction part 32A and the underfloor air conditioning air suction part 32B, and the first floor air conditioning air blowing part 35, the second floor air conditioning air blowing part 36, and the underfloor blowing part 34. Control is performed to blow out air for air conditioning (warm air) and air for underfloor air conditioning (warm air).

  When the control is performed in this way, as shown in FIG. 6, the ventilation air (outside air) sucked from the outside air inlet 10 passes through the duct 71 and is cleaned by the filter box 19 of the relay unit. The air for air conditioning sucked in from the outside air suction portion 31 of the indoor unit 3 of the air conditioner and sucked from the air conditioning exhaust port 17 passes through the duct 73 and is purified by the filter box 19 of the relay portion. The air for underfloor air conditioning sucked from the air conditioning air suction portion 32A of the indoor unit 3 of the conditioner and sucked from the underfloor air conditioning exhaust port 14 passes through the duct 72 and is purified by the filter box 19 of the relay portion. It is sucked from the under-floor air-conditioning air suction part 32B of the indoor unit 3 of the air conditioner.

  Here, the ventilation air blown from the first floor ventilation air blowing section 33A and the air conditioning air blown from the first floor air conditioning air blowing section 35 (warm air) are used for the first floor of the ventilation air conditioning branch unit 3C. The air is supplied from the first-floor air outlet 12A through the duct 74 to the first-floor room space 51 through the branch flow path 39a.

  Also, the air for underfloor air conditioning (warm air) blown out from the underfloor blowing section 34 is convected mainly in the underfloor space 4, and the heat is transferred to the above-floor space 5 via the floor 1a, and the above-floor space. The air for underfloor air-conditioning, which warms 5 uniformly and evenly and overflows the underfloor space 4 by blowing, is supplied to the first-floor room space 51 from another air inlet 13.

  Then, after the inside of the first-floor room 51 is ventilated and air-conditioned, the air corresponding to the air for the underfloor air conditioning blown out from the underfloor blowing section 34 is exhausted from the underfloor air conditioning exhaust port 14 to the duct 72 and the remaining ventilation. The air corresponding to the air for air conditioning and the air for air conditioning is exhausted from the gap 61 of the door 51a as the exhaust port for the first space ventilation air conditioning to the stair space 53 as the shared space, and the stair space 53 is also ventilated and then ventilated. The air is exhausted from the indoor air outlet 38 through the duct 76 through the duct 76 and then from the inside air outlet 38 and is exhausted from the inside air outlet 11 to the outside of the building 1 through the duct 77. Air corresponding to air for air conditioning is exhausted from the air conditioning exhaust port 17 into the duct 73.

  Further, the ventilation air blown from the second-floor ventilation air blowing section 33B and the air-conditioning air (warm air) blown from the second-floor air-conditioning air blowing section 36 are branched into the second-floor of the ventilation air-conditioning branch unit 3C. The air is supplied to the second-floor room space 52 from the second-floor air supply port 15 through the duct 75 from the second-floor air outlet 39B via the flow path 39b.

  After the second-floor room 52 is ventilated and air-conditioned, the first-floor room 51 is ventilated and air-conditioned through the gap 62 of the door 52a as the second space ventilating air-conditioning exhaust port to the staircase space 53 as the shared space. The air corresponding to the air for ventilation and the air corresponding to the air corresponding to the air for the later ventilation are also ventilated and air-conditioned, and then the air corresponding to the air for the ventilation is combined with the air corresponding to the air for the ventilation in the first floor space 51. Then, the air is sucked from the ventilation suction port 37 through the duct 76 from the ventilation exhaust port 16 and then blown out from the inside air blowing unit 38, and is exhausted from the inside air discharge port 11 to the outside of the building 1 through the duct 77. At the same time, the air corresponding to air for air conditioning is exhausted into the duct 73 from the air conditioning exhaust port 17 together with the air corresponding to air for air conditioning in the first-floor room space 51.

  That is, this circulation is repeated.

  Next, the pattern at the time of ventilation air conditioning operation at the time of cooling will be described.

  When it is desired to cool the floor space 5 by cooling, the control unit 3a sucks in the ventilation air from the outside air suction unit 31 of the indoor unit 3 of the air conditioner as the ventilation air conditioner, and the first floor ventilation air blowing unit 33A. And the ventilation air is blown out from the ventilation air blowing section 33B for the second floor, the ventilation air exhausted from the ventilation suction section 37 is sucked in, blown out from the inside air blowing section 38, and air-conditioned from the conditioned air suction section 32A The air for the air conditioning (cold air) is blown out from the first-floor air-conditioning air blowing section 35 and the second-floor air-conditioning air blowing section 36.

  When the control is performed in this way, as shown in FIG. 4, the ventilation air (outside air) sucked from the outside air inlet 10 passes through the duct 71 and is cleaned by the filter box 19 of the relay unit. The air for air conditioning sucked in from the outside air suction portion 31 of the indoor unit 3 of the air conditioner and sucked from the air conditioning exhaust port 17 passes through the duct 73 and is purified by the filter box 19 of the relay portion. It is sucked from the air-conditioning air suction part 32A of the indoor unit 3 of the conditioner.

  Here, the ventilation air blown out from the first-floor ventilation air blowing section 33A and the air-conditioning air (cold air) blown out from the first-floor air-conditioning air blowing section 35 are for the first floor of the ventilation air-conditioning branch unit 3C. The air is supplied from the first-floor air outlet 12A through the duct 74 to the first-floor room space 51 through the branch flow path 39a.

  After the first floor room space 51 is ventilated and air-conditioned, after being exhausted from the gap 61 of the door 51a as the first space ventilation air-conditioning exhaust port to the stair space 53 as the shared space, the stair space 53 is also ventilated and air-conditioned. The air equivalent to the ventilation air passes through the duct 76 from the ventilation exhaust port 16, is sucked in from the ventilation suction portion 37, and then blown out from the inside air blowing portion 38, passes through the duct 77, and flows into the inside air discharge port 11. The air equivalent to the air for air conditioning is exhausted from the air conditioning exhaust port 17 into the duct 73.

  The ventilation air blown from the second-floor ventilation air blowing section 33B and the air-conditioning air (cold air) blown from the second-floor air-conditioning air blowing section 36 are branched into the second-floor of the ventilation air-conditioning branch unit 3C. The air is supplied to the second-floor room space 52 from the second-floor air supply port 15 through the duct 75 from the second-floor air outlet 39B via the flow path 39b.

  After the second-floor room 52 is ventilated and air-conditioned, the first-floor room 51 is ventilated and air-conditioned through the gap 62 of the door 52a as the second space ventilating air-conditioning exhaust port to the staircase space 53 as the shared space. After ventilating and air-conditioning the staircase space 53 together with the subsequent ventilation air and air conditioning air, the air equivalent to the ventilation air is exhausted together with the air equivalent to the ventilation air in the first-floor room space 51 and the exhaust for ventilation. The air is sucked from the venting suction portion 37 through the duct 16 and then blown out from the inside air blowing portion 38, and is exhausted from the inside air discharge port 11 to the outside of the building 1 through the duct 77 and for air conditioning. The air corresponding to the air is exhausted into the duct 73 from the air conditioning exhaust port 17 together with the air corresponding to the air conditioning air in the first-floor room space 51.

  That is, this circulation is repeated.

  Next, functions and effects of the embodiment will be described.

  The ventilation air-conditioning system of such an example is provided with a ventilator in the underfloor space 4 of the building 1 including the above-floor space 5 having the first-floor room space 51 as the first space and the second-floor room space 52 as the second space. An indoor unit 3 of an air conditioner as a ventilation air conditioner that integrates 3A and an air conditioner 3B is installed.

  The first floor room space 51 and the second floor room space 52 of the floor space 5 of the building 1 are respectively provided with a lower floor air inlet 12 and an upper floor air inlet 15. Between the indoor unit 3 of the shona and the lower-floor air inlet 12 and the upper-floor air inlet 15, the duct 74 as the first space duct and the second space duct are connected via the ventilation air conditioning branch unit 3 </ b> C. Are connected to each other by a duct 75.

  In addition, the inside of the ventilation air conditioning branching unit 3C is for the first floor as a first floor ventilation air blowing section 33A as the first space ventilation air blowing section of the ventilation apparatus 3A and the first space conditioned air blowing section of the air conditioning apparatus 3B. A first-floor branch channel 39a as a first space branch channel in which the air-conditioned air outlet 35 and the duct 74 communicate with each other, and a second-floor ventilation air outlet as the second space ventilation air outlet of the ventilator 3A. The second-floor air-conditioning air blowing section 36 as the second-space air-conditioning air blowing section of the air-conditioning device 3B and the second-floor branch flow path 39b as the second-space branching flow path that communicates with the duct 75. It has a partitioned configuration.

  With this configuration, the presence of the ventilation / air conditioning branching unit 3C simplifies the branching portions of the ducts 74 and 75 connected to the indoor unit 3 of the air conditioner. And maintenance work can be performed easily.

  Moreover, since the indoor unit 3 of an air conditioner as a ventilation air conditioner is installed in the underfloor space 4, the above-floor space 5 is not occupied and can be used effectively, and the design appearance is also good. good.

  Moreover, the indoor unit 3 of the air conditioner as a ventilation air conditioner is a heat pump type, and is connected to the outdoor unit 2 installed outdoors.

  For this reason, since a heat pump is used, it can be excellent in energy saving performance.

  Further, backflow prevention valves 35a and 36a are respectively provided in the first-floor air-conditioning air blowing section 35 and the second-floor air-conditioning air blowing section 36 in the indoor unit 3 of the air conditioner.

  For this reason, when the air conditioning operation is not performed and only the ventilation operation is performed, the ventilation air flows into the first floor air conditioning air blowing unit 35 and the second floor air conditioning air blowing unit 36 and the ventilation function is lowered. Can be prevented.

  In addition, the indoor unit 3 of the air conditioner includes an underfloor blowing part 34.

  For this reason, the underfloor heating which warms the underfloor space 5 uniformly can be performed by blowing the underfloor air-conditioning air (warm air) from the underfloor blowing section 34 and causing it to convect in the underfloor space 4.

  Further, the underfloor space 4 is surrounded by a floor portion 1a as a floor of the building 1, a foundation bottom concrete 1b, and a foundation side wall concrete 1c, and a foundation heat insulating material 18 is attached to the foundation side wall concrete 1c.

  For this reason, since the underfloor space 4 has a heat insulating structure, energy efficient underfloor heating can be performed without leaking heat of the air in the underfloor space 4 to the outdoors as much as possible.

  The building 1 of such an Example is set as the structure provided with the ventilation air conditioning system of the Example.

  Since it is such a structure, it can be set as the building which show | plays the effect of the ventilation air conditioning system of an above-described Example.

  As mentioned above, although the form for implementing this invention was explained in full detail based on the Example with reference to drawings, the concrete structure is not limited to this Example, and is a grade which does not deviate from the summary of this invention. Design changes are included in the present invention.

  For example, in the above-described embodiment, the structure of the building 1 is simplified so that the ventilation air conditioning system of the present invention can be easily described. However, the present invention is not limited to this. You may implement.

  Further, in the above-described embodiment, an air conditioner as a ventilation air conditioner in which the ventilator 3A and the air conditioner 3B are integrated so as to facilitate assembly with the ventilating air conditioning branch unit 3C without requiring extra space. Although it implemented using the indoor unit 3 of the conditioner, it is not limited to this, If the common ventilation air-conditioning branch unit 3C is used, you may implement 3A of ventilation apparatuses and the air conditioning apparatus 3B as a different body.

  Furthermore, in the above-described embodiment, the underfloor blowing part 34 is provided so that the underfloor heating can be performed. However, the present invention is not limited to this, and the underfloor blowing part 34 may be provided.

  In the above-described embodiment, the first space is the first-floor room space 51 and the second space is the second-floor room space 52. However, the present invention is not limited to this. For example, two room spaces on the same floor are You may implement as 1 space and 2nd space.

  Furthermore, in the above-described embodiment, there are only two spaces, the first space and the second space, and the inside of the ventilation / air conditioning branch unit 3C is divided into only two branches, a first floor branch channel 39a and a second floor branch channel 39b. However, the present invention is not limited to this, and more spaces may be targeted and more branch flow paths in the ventilation / air conditioning branch unit 3C may be provided.

1 Building 1a Floor (floor on the first floor)
1b Foundation floor concrete 1c Foundation side wall concrete (foundation of the outer periphery of the building)
1d Outer wall 1e Ceiling 1f Intermediate wall 1g Floor (2nd floor floor)
2 Outdoor unit of air conditioner 21 Heat medium circulation line 3 Indoor unit of air conditioner (ventilation air conditioner)
3a Control unit 3b Heat exchanger 3A Ventilation device 3B Air conditioning device 3C Ventilation air conditioning branch unit 30a Ventilation exhaust space 30b Ventilation air supply space 30c Air conditioning space 31 Outside air suction portion 32A Air conditioning air suction portion 32B Underfloor air conditioning air suction portion 33A 1 Floor ventilation air outlet (first space ventilation air outlet)
33B Ventilation air outlet for the second floor (ventilation air outlet for the second space)
34 Underfloor outlet 35 Air conditioning air outlet for the first floor (Air conditioning air outlet for the first space)
36 2nd floor air-conditioning air outlet (first air-conditioned air outlet)
35a Backflow prevention valve 36a Backflow prevention valve 37 Ventilation suction part 38 Inside air blowing part 39A 1st floor air blowing part (first space air blowing part)
39B 2nd floor air outlet (second air outlet)
39a First floor branch channel (first channel branch channel)
39b Branch channel for the second floor (Branch channel for the second space)
4 Below-floor space 5 Above-floor space 51 1st floor room space (first space)
52 Second-floor room (second space)
53 Stair space (shared space)
51a Door (entrance / exit)
52a Door (entrance / exit)
61 Door clearance (exhaust port for 1st space ventilation air conditioning)
62 Door clearance (exhaust port for second space ventilation air conditioning)
71 Duct 72 Duct 73 Duct 74 Duct (first space duct)
75 Duct (second space duct)
76 Duct 77 Duct 8 Fan (Forced blowout means)
9 Partition material 10 Outside air inlet 11 Inside air outlet 12 First floor air inlet (first air inlet)
13 Another air supply port 14 Exhaust port for underfloor air conditioning 15 Air supply port for the second floor (air supply port for the second space)
16 Exhaust port for ventilation 17 Exhaust port for air conditioning 18 Basic heat insulating material 19 Filter box (air purification means)
19a Bulkhead in filter box

Claims (8)

A ventilation device and an air conditioner are installed in a building having a floor space having a first space and a second space,
A first space air supply port and a second space air supply port are respectively provided facing the first space and the second space of the floor space of the building,
Between the ventilation device and the air conditioner and the first space air supply port and the second space air supply port, a first space duct and a second space use are provided via a common ventilation air conditioning branching unit. Each connected by a duct,
In the ventilation air conditioning branching unit, a first space branch flow in which the first space ventilation air blowing portion of the ventilation device, the first space air conditioning air blowing portion of the air conditioning device, and the first space duct communicate with each other. And a second space branch airflow passage through which the second space ventilation air blowing portion of the ventilation device, the second space air conditioning air blowing portion of the air conditioning device, and the second space duct communicate with each other. with that,
The ventilation air-conditioning system characterized by the forced blowing means being provided in the said 1st space conditioned air blowing part and the said 2nd space conditioned air blowing part, respectively .   The ventilation air conditioning system according to claim 1, wherein the ventilation device and the air conditioning device are an integrated ventilation air conditioning device.   The ventilation air conditioning system according to claim 2, wherein the ventilation air conditioner is an indoor unit of a heat pump type air conditioner, and is connected to an outdoor unit installed outdoors.   The backflow prevention valve is provided in the said 1st space conditioned air blowing part and the said 2nd space conditioned air blowing part in the said air conditioner, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. Ventilation air conditioning system as described in.   The ventilation air conditioning system according to any one of claims 1 to 4, wherein the ventilation device and the air conditioning device are installed in an underfloor space of the building.   The ventilation air conditioning system according to claim 5, wherein the air conditioner includes an underfloor blowing section.   The underfloor space is surrounded by a floor of the building, foundation bottom concrete, and foundation side wall concrete, and a foundation heat insulating material is attached to the foundation side wall concrete. Ventilation air conditioning system.   A building comprising the ventilation air conditioning system according to claim 1.

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