JP2018066490A - Air-conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-conditioning system capable of being installed in a state where a habitable space is sufficiently secured in a room structure.SOLUTION: An air-conditioning system 1 has an air conditioner 8 and a ventilator 30, which are configured to perform air-conditioning and ventilation of an indoor space S. The air conditioner 8 has a flow passage for air-conditioning of an indoor machine 8 in the underfloor space U formed between a floor surface 2 in a room structure A of a concrete skeleton and a floor material 5 arranged with an interval on the floor surface 2, the indoor machine installed in the indoor space S. The ventilator 30 is arranged in an attic space C formed between a ceiling surface 40 in the room structure of the concrete skeleton and the ceiling material 41 arranged with an interval on the ceiling surface 40.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an air conditioning system that uses an indoor underfloor space as an air flow path during air conditioning.

  In general air conditioning of an indoor space of a building, an outdoor unit of an air conditioner is installed outside the building, and the indoor space is heated or cooled by blowing out warm air or cold air from the indoor unit. In the case of such a general air conditioning system, an air conditioner composed of an outdoor unit and an indoor unit must be installed in each room. For such a general air conditioning system, as in Patent Document 1, a whole building air conditioning system or the like has been developed in which a duct network is provided in the ceiling portion of the room and warm air or cold air is blown out from the indoor unit through the duct network. Yes.

Japanese Patent Laid-Open No. 2008-121964 (page 4, FIG. 1)

  The air conditioning system described in Patent Literature 1 includes an air conditioning system and a ventilation system. The air conditioning system has outdoor units installed outdoors, indoor units installed indoors, ducts that connect these outdoor units and indoor units, etc., and the ventilation system exchanges air indoors and outdoors. Equipped with ventilation unit to do. The indoor unit is disposed in the space behind the ceiling, and the suction port of the indoor unit is disposed on the wall portion of the machine room installed near the wall. In addition, the ventilation system is configured to take in air from the air supply port formed in the wall of the building and merge it from the ventilation unit to the duct of the air conditioning system. Delivered to each room.

  As described above, the air conditioning system described in Patent Document 1 is employed in a detached house or the like having rooms on a plurality of floors, and has a configuration in which an air conditioning duct and an indoor unit are arranged in a ceiling space. The space originally had ventilation system ducts and electrical wiring routed, and in order to additionally arrange air conditioning ducts and indoor units in this ceiling space, it is necessary to enlarge the ceiling space. As a result, there is a possibility that the ceiling may be lowered, and there is a possibility that the living space may be narrowed. Therefore, it has been difficult to adopt it in a limited room structure such as an apartment.

  In addition, since the ventilation system merges with the duct of the air conditioning system, the air conditioning system and the ventilation system are arranged so as to run vertically through the indoor space, providing as much storage space as possible in the living space. There was a problem that it was difficult to adopt in condominiums that wanted to.

  The present invention has been made paying attention to such problems, and an object of the present invention is to provide an air conditioning system that can be installed in a room structure in a state where a living space is sufficiently secured.

In order to solve the above-described problem, the air conditioning system of the present invention includes:
An air conditioning system having an air conditioner and a ventilator for air conditioning and ventilation of an indoor space,
The air conditioner is an indoor unit installed in the indoor space in a subfloor space formed between a floor surface in a room structure of a concrete frame and a floor material arranged with a space on the floor surface. The air conditioning flow path is arranged,
The ventilation device is arranged in a ceiling space formed between a ceiling surface in a room structure of a concrete frame and a ceiling material arranged with a space on the ceiling surface. .
According to this feature, by arranging the air conditioning flow path in the underfloor space under the floor material that constitutes the indoor space, the ceiling height is not lowered, and the ventilation device and the indoor unit are vertically moved. Since the space between the indoor unit and the ceiling material is used as a storage space, the entire building air conditioning system can be installed in one room of a condominium, etc. while ensuring sufficient living space .

The ventilator is characterized in that outside air is taken in from an air supply port provided on a wall surface of a room structure of the concrete housing, and the outside air is blown out from an air outlet arranged in the vicinity of the indoor unit in the ceiling material. .
According to this feature, since the air outlet of the ventilation device is arranged in the vicinity of the indoor unit, the outside air sent from the air outlet, that is, fresh air is efficiently sucked into the indoor unit, and the flow path in the underfloor space is It can be used evenly throughout the indoor space.

The ventilator includes an indoor air inlet that sucks in indoor air, an air inlet that takes in outside air, and a heat exchange unit that exchanges heat between the indoor air taken in from the indoor air inlet and the outside air taken in from the air inlet. It is characterized by comprising a ventilation main body, the air outlet for blowing outside air that has passed through the heat exchange unit into the room, and a discharge port for discharging indoor air taken in from the room air intake to the outside.
According to this feature, the outside air taken in from the air supply port is sent to the heat exchange unit, and heat is exchanged with the room air taken in from the room air intake port so that the temperature is close to the temperature of the room air. Since the air is blown into the room from the air outlet, the room can be ventilated while maintaining the air conditioning efficiency of the indoor unit.

A suction port for sucking air in the indoor space is formed below the indoor unit, and the indoor unit is disposed in a machine room formed by wall members erected on the front, rear, left and right of the indoor unit, The machine room is provided with a ventilation portion communicating with the indoor space.
According to this feature, the indoor space and the machine room are ventilated by the ventilation section and have substantially the same temperature, and the air above the machine room and the intermediate air are caused by outside air blown into the machine room from the vent of the ventilator. When pushed down, the air in the vertical direction in the machine room mixes and becomes an average temperature, and is sucked into the suction port of the indoor unit. Therefore, the indoor unit can adjust the output of the heat exchanger based on the average temperature in the indoor space, and can perform air conditioning with an appropriate output for the set temperature.

The wall member located on the front side of the indoor unit in the machine room is characterized in that the ventilation portion is provided at a position corresponding to the suction port.
According to this feature, the air in the indoor space is easily sucked into the suction port of the indoor unit in the machine room through the ventilation portion.

It is a figure which shows the air-conditioning system in an Example. It is a conceptual diagram which shows the indoor unit of an air conditioner. It is sectional drawing which shows underfloor space. It is sectional drawing which shows a vent hole. It is a figure which shows a ventilation apparatus.

  EMBODIMENT OF THE INVENTION The form for implementing the air conditioning system which concerns on this invention is demonstrated below based on an Example.

  The air conditioning system according to the present embodiment is used in a building in which at least a floor surface and a wall surface of a room structure are constituted by a concrete frame, and air-conditions an indoor space using a floor space described later as a flow path. In this embodiment, a case where a ventilation air conditioning system is installed in a room of an apartment will be described as an example.

  As shown in FIG. 1, one room of an apartment (hereinafter referred to as “room structure A”) is a so-called ramen structure that is not described in detail in the figure, and a ceiling surface 40 (see FIG. 2) that is a concrete frame, A floor surface 2 (see FIG. 3) and a wall surface 3 define the surface. As shown in FIG. 3, an interior wall 4 is attached to the inside of the wall surface 3 of the room structure A, and a flooring 5 is attached to the floor 2, and the ceiling is attached to the ceiling 40. An indoor space S is formed inside the room structure A by 41 (see FIG. 2), the interior wall 4, and the flooring 5.

  Further, partition walls 6, 6,... Partitioning the rooms R, R,... Are attached on the flooring 5. Of the rooms R, R,. The air vents 7 are respectively installed in the rooms R for air conditioning.

  As shown in FIG. 2, an indoor unit 8 (air conditioner) configured to include an indoor unit body 9 and a duct 10 is installed on the flooring 5. A suction port 11 for sucking air in the indoor space S is formed in the lower front portion of the indoor unit main body 9. The air sucked from the suction port 11 is cooled or heated, and a blower outlet 12 to be described later by a built-in blower 15. It comes to be blown out more. A filter (not shown) is built in the vicinity of the suction port 11 so as to remove the sucked air. The indoor unit 8 is connected to the outdoor unit 14 (air conditioner) via a refrigerant tank (not shown) (see FIG. 1).

  An air outlet 12 is provided in the upper part of the indoor unit body 9, and one end 10 a of a duct 10 routed on the back side of the indoor unit body 9 is connected to the air outlet 12. The other end 10 b of the duct 10 passes through the flooring 5 and is connected to the through hole 13.

  As shown in FIG. 1, the indoor unit 8 is disposed in the machine room M, and although not shown in detail in the figure, a refrigerant tank connected to the indoor unit 8 and a drain extending from the indoor unit 8 to the outside. The piping is routed using a gap in the machine room M. The machine room M is provided in a place where there is no hindrance in accordance with the layout of the house.

  As shown in FIG. 2, an underfloor space U is formed between the flooring 5 and the floor surface 2 of the room structure A, and warm air or cold air blown out from the air outlet 12 passes through the duct 10 under the underfloor space U. To be guided to.

  The air cycle of the indoor space S in the air conditioning system 1 will be described. The air in the indoor space S sucked into the indoor unit 8 from the suction port 11 is cooled or heated, and is carried from the air outlet 12 to the underfloor space U through the duct 10. Further, warm air or cold air is not provided with rooms R, R,... (Hereinafter referred to as vents 7, 7,...) Provided with vents 7, 7,. In order to distinguish them from the rooms, they are sent into the air-conditioned rooms R, R,.

  As shown in FIG. 3, the flooring 5 is configured such that a particle board 20 whose lower surface 5 a is surface-treated in a smooth plane and a plywood 21 stacked on the particle board 20 are vertically stacked. A plurality of support legs 23 erected on the floor surface 2 of the room structure A are supported above the floor surface 2 at a predetermined height. A peripheral edge 5c of the flooring 5 is abutted in an approximately orthogonal direction to an inner surface 4a of an interior wall 4 to be described later. A flooring 22 on the indoor space S side, which is a surface material, is attached on the flooring 5.

  A heat insulating material 24 is installed on the floor surface 2. The heat insulating material 24 is so-called foamed plastic, and the upper surface 24a is a smooth flat surface, and an opening 24b is formed at a position corresponding to the installation position of the support leg 23 so as not to interfere with the support leg 23. Yes. An outer peripheral edge 24c of the heat insulating material 24 is abutted in an approximately orthogonal direction to an inner surface 4a of the interior wall 4 described later.

  The interior wall 4 includes a heat insulating material 25 made of foamed plastic attached to the wall surface 3 of the room structure A, a gypsum board 26, and a frame member 27 interposed between the heat insulating material 25 and the gypsum board 26. . Although not shown, wallpaper is pasted on the surface of the gypsum board 26 on the indoor space S side, and a baseboard 28 is attached on the wallpaper.

  The surface of the gypsum board 26 is shaped into a flat surface, and the underfloor space U side on the surface of the gypsum board 26 constitutes the inner surface 4 a of the interior wall 4 in the underfloor space U. Further, the peripheral edge 5c of the flooring 5 is abutted against the inner surface 4a of the interior wall 4 in a substantially orthogonal direction with no gap.

  As described above, the floor space 5 is abutted with the inner surface 4a of the interior wall 4 without any gap in the substantially orthogonal direction so that the underfloor space U is a highly airtight space instead of the duct that has been provided on the ceiling side. Can be used as

  As described above, the underfloor space U is surrounded by the upper surface 24a of the heat insulating material 24 formed in a plane, the lower surface 5a of the flooring material 5, and the inner surface 4a of the interior wall 4, and flows through the underfloor space U. The air resistance is low, and the blowout air volume of the indoor unit 8 can be easily controlled.

  As shown in FIG. 4, the vent 7 is configured by fixing a vent unit 18 in a hole 17 penetrating the floor material 5 in the vertical direction. The vent hole unit 18 has a hollow structure and forms a passage through which air moves from the underfloor space U to the indoor space S, and has a variable damper 19 in the passage.

  A room controller (not shown) is installed in each of the air-conditioned rooms R, R,. The room controller includes a button for setting a target temperature and a display screen, and includes a thermometer for measuring the room temperature of the room and a communication device, and the opening of the variable damper 19 is set so that the room temperature of the room R approaches the target temperature. It comes to adjust. The opening degree information is also transmitted to the air conditioner, and the air conditioner adjusts the amount of air supplied to all the rooms from the opening degree information of the variable damper 19 of each room R, R,. The temperature setting and the blowout air volume control are performed.

  As shown in FIG. 2, a ceiling material 41 is supported below the ceiling surface 40, which is a concrete frame, at a predetermined interval, and a ceiling back space C is formed between the ceiling surface 40 and the ceiling material 41. Has been. Although the whole image is not shown here, the ventilation device 30 is disposed in the ceiling space C.

  As shown in FIG. 2, an indoor unit 8 composed of an indoor unit body 9 and a duct 10 is placed on the floor material 5 in the machine room M. The machine room M is surrounded on four sides by the interior wall 4 and the partition walls 6A, 6B, and 6C. Among these, one partition wall 6D has an inspection door 60, and the indoor unit body 9 has a suction port 11 in the machine. It is arranged in the machine room M so as to face the door 60 side of the room M. A plurality of undercuts 61 (ventilating portions) are formed on the lower side of the door 60. The undercuts 61 are located at positions corresponding to the slits 11a, 11a,... It is provided and the suction inlet 11 is easy to take in air from the outside of the door 60.

  Further, the ceiling height of the indoor unit 8 is set so that the upper end 8a (the upper end of the duct 10) is separated from the lower surface 41a of the ceiling material 41 of the part constituting the ceiling of the machine room M. A shelf plate 42 is fixed above the indoor unit 8 to the interior wall 4 and the partition walls 6A and 6B constituting the machine room M, and the ceiling material of the portion constituting the ceiling of the machine room M with the shelf plate 42 A storage space 43 is formed between the storage space 41 and the terminal 41.

  As shown in FIG. 5, the ventilator 30 includes indoor intake ports 31, 31, 31 for sucking air in the indoor space S, an air supply port 32 for taking in outside air, an exhaust port 33, and a heat exchange unit (not shown). 2), a vent 35 for blowing outside air after passing through the heat exchange unit into the indoor space S, the indoor intake port 31, the air supply port 32, the exhaust port 33, and the ventilation main unit 34. And ducts 36, 36,... Connecting the air outlet 35 and the air outlet 35, respectively. The ventilation main body 34 further includes a filter box (not shown) that cleans outside air with dust and the like.

  The outside air taken in from the air supply port 32 is sent to the ventilation main body 34 through the duct 36, and is exchanged with the indoor air in the indoor space S taken in from the indoor air intake port 31 by the heat exchange unit. It blows out from the blower outlet 35 in the state close | similar to the temperature of air.

  As shown in FIG. 2, a communication hole 41b is provided in a ceiling material 41 constituting a ceiling of the machine room M, and an air outlet 35 of a ventilator 30 is connected to the communication hole 41b. The outside air that has passed through the heat exchange unit 34 is blown into the machine room M.

  As shown in FIG. 6, the air outlet 35 is disposed close to the door 60 side (the front side of the indoor unit 8) of the machine room M, and is directed upward toward the flooring 5 on the front side of the indoor unit 8. The outside air is blown out from.

  As described above, by arranging the air conditioning flow path in the underfloor space U under the floor material 5 constituting the indoor space S, the ceiling height is not lowered, and the ventilation device 30 and the indoor unit Since the space between the indoor unit 8 and the ceiling material 41 is used as the storage space 43, a so-called entire building is provided in a room such as an apartment while ensuring a sufficient living space. An air conditioning system 1 that is air conditioning can be installed.

  The doors 16, 16,... Of the air-conditioning rooms R, R,... Have a ventilation gap (not shown), and warm air or cold air is sent into the air-conditioning rooms R, R,. Then, air overflows outside the air-conditioned rooms R, R,... Through the doors 16, 16,. The air that has flowed out of the air-conditioned rooms R, R,... Is sucked into the air inlet 11 of the indoor unit 8 through the undercut 61 of the door 60 of the machine room M. Note that the air in the machine room M is ventilated from the outside of the machine room M through the undercut 61, and has substantially the same temperature as the room space S.

  The air in the indoor space S that has flowed into the machine room M through the undercut 61 merges with the outside air blown into the machine room M from the ventilator 30 in the machine room M and enters the suction port 11 of the indoor unit 8. Inhaled. The air sucked in at the inlet 11 of the indoor unit 8 in this way is measured by a thermometer (not shown) built in the indoor unit 8 and brought close to the set temperature by the heat exchanger in the indoor unit 8. It will be air-conditioned. In particular, in the case of cooling operation, the cold air blown from the underfloor space U to the indoor space S through the vent 7 is likely to be distributed at a low position, although there is air convection, and a temperature difference occurs between the high temperature and the high position. . For this reason, the cold air is likely to be distributed at a low position in the machine room M, which has substantially the same temperature as the indoor space S, and has a temperature distribution in which the temperature gradually decreases from the upper side to the lower side in the machine room M.

  That is, the temperature near the inlet 11 of the indoor unit 8 installed in the vicinity of the flooring 5 is lower than the temperature near the outlet 35 of the ventilation device 30 on the ceiling side in the machine room M. The air temperature in these intermediate spaces is an intermediate temperature zone between the upper air temperature and the lower air temperature in the machine room M.

  Here, as described above, the air outlet 35 of the ventilator 30 is provided in the ceiling material 41 of the machine room M, and the outside air is blown out toward the floor material 5 on the front side of the indoor unit 8. The upper air and the intermediate air in the machine room M are pushed down by the outside air blown into the machine room M from the air outlet 35 of the ventilation device 30. As a result, the upper air and the intermediate air in the machine room M merge with the air in the vicinity of the suction port 11 of the indoor unit 8 and are sucked into the suction port 11 as an average temperature. Therefore, the indoor unit 8 can adjust the output of the heat exchanger based on the average temperature of the indoor space S, and can perform air conditioning with an appropriate output with respect to the set temperature.

  Moreover, since the indoor unit 8 is installed in the machine room M, and the air outlet 35 of the ventilation device 30 is also installed so as to blow into the machine room M, the outside air sent from the air outlet 35, that is, fresh air. Can be efficiently sucked into the indoor unit 8 and evenly distributed throughout the indoor space S using the flow path of the underfloor space U. In addition, by blowing outside air from the air outlet 35, the upper air in the machine room M and the intermediate air are used as air in the vicinity of the suction port 11 of the indoor unit 8 in a limited space in the machine room M. They can be mixed, and the average temperature of the indoor space S can be easily determined.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the said Example, the indoor space S is divided by the partition walls 6, 6, ... standing on the flooring 5, and the underfloor space U is also formed under the room which is not air conditioning object. Although it can be configured, from the viewpoint of energy saving and air conditioning efficiency, a wall or the like that is blocked may be provided so that warm air or cold air does not flow under a room that is not air-conditioned.

  Moreover, although the indoor unit 8 demonstrated in the aspect installed in the machine room M, it is not restricted to this, For example, you may install in the room R which is air-conditioning object, or the room which is not air-conditioning object.

  Moreover, since the hole 17 of the flooring 5 is disposed on the back side of the indoor unit body 9, the duct 10 has been described as being configured on the back side of the indoor unit body 9. For example, a hole may be provided on the side of the indoor unit body 9 so that the suction force of the suction port 11 of the indoor unit 8 is not hindered, and the duct may be routed on the side of the indoor unit body 9.

  In the above embodiment, the interior wall 4 includes a heat insulating material 25, a gypsum board 26, and a frame member 27, and the underfloor space U side on the surface of the gypsum board 26 defines the inner surface 4 a of the interior wall 4 in the underfloor space U. The interior wall 4 is a word used as a contrast with the wall surface 3 of the concrete frame, and is configured inside the wall surface 3 to form the indoor space S and the underfloor space U. The configuration described in the embodiment is not limited as long as it constitutes a so-called inner wall having a flat surface.

  Moreover, in the said Example, although the flooring 5 is comprised by the particle board 20 and the plywood 21 being piled up and down, it is not restricted to this, The flooring 22 may be included in a flooring, for example, underfloor space U The lower surface of the side may be composed of a single plate material formed into a flat surface.

  The air conditioning system 1 is not limited to a condominium, and can be used in various buildings as long as the room space is defined by the ceiling surface, floor surface, and wall surface of a concrete frame.

  Moreover, as a structure which ventilates the inside of the machine room M and the outside of the machine room M, not only the undercut 61 as described in the said Example but a several slit is formed horizontally in the lower end side of the door 60, for example. You may comprise.

  Moreover, in the said Example, since the flooring 5 is cooled or heated by the air which flows through the underfloor space U, and heats and cools radiation with respect to the indoor space S, the temperature difference in the boundary line of the indoor space S and the underfloor space U And the condensation at the boundary line between the indoor space S and the underfloor space U can be sufficiently prevented, so that the peripheral edge 5c of the flooring 5 is abutted against the inner surface 4a of the interior wall 4 in a substantially orthogonal direction without a gap. As described above, gaps may be formed between the peripheral edge 5 c of the flooring 5 and the inner surface 4 a of the interior wall 4, and between the lower surface of the baseboard 28 and the surface of the flooring 22. According to this, since air is mixed between the indoor space S and the underfloor space U through these gaps, the temperature difference of the air at the boundary line between the indoor space S and the underfloor space U is reduced, and dew condensation is effectively performed. Occurrence can be suppressed. This gap is formed to such an extent that the airtightness of the underfloor space U is not hindered.

  In addition, dust outside the machine room M is sucked to the lower end of the indoor unit 8 by suction from the suction port 11, but the suction port 11 is made to be floor material 5 by installing the indoor unit 8 on an installation table (not shown). It is good also as a structure located more predetermined height, and according to this, the suction of the dust which exists on the flooring 5 is suppressed, and the frequency of cleaning of the filter with which the suction port 11 was prepared is reduced. be able to.

DESCRIPTION OF SYMBOLS 1 Air conditioning system 2 Floor surface 3 Wall surface 4 Interior wall 5 Floor material 6, 6A-C Partition wall 7 Vent 8 Indoor unit 8a Indoor unit upper end 10 Duct 11 Suction port 11a Suction port slit 12 Outlet 13 Through hole 15 Blower 16 Door 18 Vent unit 23 Support leg 30 Ventilator 31 Indoor air inlet 32 Air inlet 33 Exhaust port 34 Ventilation body part 35 Air outlet 36 Duct 40 Ceiling surface 41 Ceiling material 41a Ceiling material lower surface 41b Communication hole 42 Shelf plate 43 Storage space 60 Door 61 Undercut A Room structure C Ceiling space M Machine room R Room S Indoor space U Underfloor space

Claims (5)

An air conditioning system having an air conditioner and a ventilator for air conditioning and ventilation of an indoor space,
The air conditioner is an indoor unit installed in the indoor space in a subfloor space formed between a floor surface in a room structure of a concrete frame and a floor material arranged with a space on the floor surface. The air conditioning flow path is arranged,
The ventilation device is arranged in a ceiling space formed between a ceiling surface in a room structure of a concrete frame and a ceiling material arranged with a space on the ceiling surface. Air conditioning system.   The ventilator takes in outside air from an air supply port provided on a wall surface of a room structure of the concrete housing, and blows out outside air from an air outlet disposed in the vicinity of the indoor unit in the ceiling material. The air conditioning system according to claim 1.   The ventilator includes an indoor air inlet that sucks in indoor air, an outdoor air inlet that takes in outside air, and a heat exchange unit that exchanges heat between the indoor air taken in from the indoor air inlet and the outside air taken in from the outdoor air inlet. The ventilating main body, the air outlet that blows outside air that has passed through the heat exchange unit into the room, and a discharge port that discharges the indoor air taken in from the room air intake to the outside. 2. The air conditioning system according to 2.   A suction port for sucking air in the indoor space is formed below the indoor unit, and the indoor unit is disposed in a machine room formed by wall members erected on the front, rear, left and right of the indoor unit, The air conditioning system according to claim 3, wherein the machine room is provided with a ventilation portion communicating with the indoor space.   5. The air conditioning system according to claim 4, wherein the ventilation member is provided at a position corresponding to the suction port in the wall member located on the front side of the indoor unit in the machine room.

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