JP2009281613A - Air conditioning method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning system efficiently heating or cooling all rooms inside a building by using at least one air conditioner. <P>SOLUTION: The warm air (or cold air) is supplied to an underfloor space 4 between a floor formed by laying a floor material 3 and the foundation 1 from a supply opening 9 of an indoor unit 8B of the air conditioner 8. One or a plurality of flowage adjusting ports 12 are formed on the floor material 3, the flowage is generated in the underfloor space 4 by moving a part of the warm air (or cold air) in the underfloor space 4 to an indoor side, thus the warm air (cold air) is sufficiently distributed to corner sections of the underfloor space 4. The flowage adjusting ports 12 are preferably provided with opening and closing members for adjusting a flow rate of the warm air (cold air). Thus, the floor material 3 is nearly uniformly heated (or cooled), and the heat (or cold) is allowed to radiate or convect to a living space side from the floor material 3 so that an indoor temperature is efficiently adjusted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioning system that efficiently cools and heats the indoor space of a building with one air conditioner.

  In order to air-condition the indoor space of a building, an outdoor unit of an ordinary air conditioner is installed outside the building, and the indoor unit is attached to the interior of the building, and warm air or cold air is blown out from the indoor unit of the air conditioner. Heating or cooling is performed. In the case of such an air conditioning system, an air conditioner composed of an outdoor unit and an indoor unit must be installed in each room.

  According to the conventional air conditioning system, an air conditioner can be used for each room as necessary, which is advantageous from the viewpoint of energy saving. However, when there are many rooms, the number of air conditioners increases, so the economic burden is increased. growing.

  Furthermore, in the conventional air conditioning system, warm air or cold air is blown out using the fan of the indoor unit attached to the wall of the room, and the blowing direction can be finely adjusted by interposing fins that move in the vertical and horizontal directions. However, there is still a problem that a temperature difference tends to occur inside the room.

  As a technique for solving such a temperature difference problem, a ceiling radiant heating / cooling apparatus that cools or heats the ceiling radiant panel surface and performs indoor air conditioning as disclosed in, for example, Patent Document 1 is known. It has been. However, in this case, since the indoor heat load fluctuates depending on the environment such as the season, weather, and number of people, in order to solve the problem that it takes time to stabilize after starting operation in order to make the indoor environment comfortable. The invention was made, and it is possible to improve the comfort in a short time because the rise time can be shortened and the temperature can be controlled in accordance with the heat load in the room.

In Patent Document 2, a radiant panel having a heat medium flow path for flowing at least one of cold water and hot water as a heat medium and a radiation plate that receives and radiates heat from the heat medium flowing through the heat medium flow path is provided on the floor of a room. An air conditioning system is disclosed. However, in this case, the radiant panel is not laid on the entire floor of the room, so that energy is not wasted and the wiring and the like of the OA equipment provided under the floor can be maintained and inspected.
JP 2006-258377 A JP 2006-214695 A

  The present invention has been made in view of the above-described prior art. By using at least one air conditioner without providing an air conditioner in each room, it is possible to efficiently cool and heat all the rooms inside the building. An object of the present invention is to provide an air conditioning system capable of suppressing a temperature difference that is likely to occur inside a room.

  In order to achieve the above object, claim 1 of the present invention is an air conditioning system that air-conditions an indoor space of a building, and distributes warm air or cold air conditioned by an air conditioner to an underfloor space partitioned by a flooring material, The room temperature is adjusted through the floor material.

  According to a second aspect of the present invention, in the air conditioning system according to the first aspect, a flow adjusting port is disposed in the floor material, and the flow adjusting port adjusts the flow of warm air or cold air in the underfloor space. .

  According to a third aspect of the present invention, in the air conditioning system according to the first or second aspect, the air conditioner flows into the room from a blow-out port that feeds air or warm air that has been conditioned into an underfloor space, and the flow adjustment port. A suction port for sucking the circulated air is formed.

  According to a fourth aspect of the present invention, in the air conditioning system according to any one of the first to third aspects, the underfloor space is formed by a region sandwiched between a floor material and a foundation, and heat insulation is provided at the bottom of the underfloor space. The material is laid.

  According to a fifth aspect of the present invention, in the air conditioning system according to any one of the first to fourth aspects, the lower floor space of the upper floor is formed by a region sandwiched between the floor material and the ceiling material of the lower floor. A heat insulating material is laid at the bottom of the space.

  According to a sixth aspect of the present invention, in the air conditioning system according to the fifth aspect, the diverting means is arranged in the air supply path for sending warm air or cold air conditioned by the air conditioner from the first floor underfloor space to the nth floor (n ≧ 2) underfloor space. Is arranged so that warm air or cold air can be sent from the underfloor space on the first floor to the underfloor space on the nth floor by this diversion means.

  A seventh aspect of the present invention is the air conditioning system according to any one of the first to sixth aspects, wherein the floor material is any one of a wood material, a fiber material, a synthetic resin material, a stone material, and a concrete material, or a combination thereof. It is characterized by being.

  According to the first aspect of the present invention, warm air or cold air conditioned by one air conditioner is circulated in the under-floor space of the building, and the flooring is heated or cooled to enter one or a plurality of rooms via the flooring. The room temperature can be adjusted by conducting, convection, or radiating warm or cold heat. Thereby, all the rooms inside a building can be air-conditioned by using at least one air conditioner without providing an air conditioner in each room.

  According to the second aspect of the invention, the flow of warm air or cold air flowing in the underfloor space can be adjusted by the flow adjusting port arranged in the flooring. For this reason, the temperature of the underfloor space can be made substantially uniform by eliminating the portion where the air tends to stay.

  According to the third aspect of the present invention, the air conditioner is formed with a blow-out port for sending conditioned warm air or cold air into the underfloor space, and a suction port for sucking the circulated air flowing into the room from the flow adjustment port. Therefore, air smoothly circulates and efficiently cools and heats each room, and it is possible to suppress a partial temperature difference in the room.

  According to the fourth aspect of the invention, the underfloor space is formed by a region sandwiched between the flooring and the foundation, and the heat insulating material is laid at the bottom of the underfloor space. Can be prevented from radiating heat to the base side. Thereby, heat loss can be suppressed small.

  According to the invention of claim 5, the lower floor space of the upper floor is formed by a region sandwiched between the floor material of the upper floor and the ceiling material of the lower floor, and the heat insulating material is laid at the bottom of the lower floor space. Therefore, it is possible to prevent warm air or cold air in the space below the upper floor from radiating and conducting heat to the ceiling material side.

  According to the sixth aspect of the present invention, the diverting means is disposed in the air supply path for sending warm air or cold air conditioned by the air conditioner from the first floor under floor space to the n floor (n ≧ 2) under floor space. Since warm air or cold air can be sent from the first floor underfloor space to the nth floor underfloor space by the diversion means, any floor can be air-conditioned. For this reason, it can be sufficiently applied not only to a two-story building but also to a three-story or higher building.

  According to the seventh aspect of the present invention, the floor material is not limited as long as it is a material applicable as a floor material. For example, wood flooring, tatami mats, carpets, synthetic resin sheets, tiles, natural stones or artificial stones, concrete, or the like may be used, or an appropriate combination thereof. For this reason, a flooring can be selected freely.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic explanatory view showing a first embodiment of the present invention. In the figure, 1 is a foundation, 2 is an outer wall, and an underfloor space 4 is provided in an area sandwiched between a flooring 3 (or a floor formed by stretching the flooring 3) and the foundation 1, and an inner wall 5 or a partition A plurality of (three in the illustrated example) rooms A, B, and C are formed. In addition, a heat insulating material 6 is laid on the upper surface of the bottom of the underfloor space 4, and the heat insulating material 6 is attached to the inner surface of the side portion, and the entire living space is surrounded by the heat insulating material 7. In addition, the ceiling material of each room A, B, and C, the support structure of the flooring 3, the roof, etc. are not illustrated.
Reference numeral 8 denotes an air conditioner, which includes an outdoor unit 8A installed outside the building and an indoor unit 8B attached inside the building. In this case, the indoor unit 8B is attached to a corner portion of the underfloor space 4 and includes a blowout port 9 for blowing warm air or cold air into the underfloor space 4 and a suction port 10 for sucking air from the indoor side. Reference numeral 11 denotes a controller of the air conditioner 8, and in this case, is attached to the inner wall (not shown) surface in the room A.

  The flooring 3 is provided with one or more flow control ports 12. In the example shown in the figure, one flow adjusting port 12 is provided in the floor material portion of the room C at the corner opposite to the indoor unit 8B in the underfloor space 4, but the present invention is not limited to this. The flow adjusting port 12 moves a part of the warm air or cold air in the underfloor space 4 to the indoor side (here, the room C), thereby causing the warm air or cold air in the underfloor space 4 to flow and causing the underfloor space 4 to flow. It is intended to make it fully reach the corners. Thereby, the temperature of the underfloor space 4 can be made substantially uniform. In some cases, the flow adjustment port 12 is not provided.

  Moreover, it is preferable that the flow adjusting port 12 is provided with an opening / closing member for adjusting the flow rate of warm air or cold air. As this opening / closing member, for example, as shown in FIG. 2, an opening / closing member 13 comprising a frame body 13a and a plurality of louver plates 13b rotatably arranged inside the frame body 13a can be used. It is not limited to. The opening / closing member 13 can freely adjust the opening area of the frame 13a within the range of fully closed to fully open by changing the opening angle of the plurality of louver plates 13b. As a result, the flow rate of warm air or cold air passing through the flow control port 12 can be adjusted.

  As the opening / closing member, for example, as shown in FIG. 3, an opening / closing member 14 comprising a fixed disk 14a and a rotating disk 14b pivotally supported coaxially with the fixed disk 14a can be used. The opening / closing member 14 has a plurality of fan-shaped holes 14d formed in the circumferential direction of the upper rotating disk 14b with respect to the fan-shaped holes 14c formed in the circumferential direction of the lower fixed disk 14a. By changing the position, the fan-shaped hole 14c of the fixed disk 14a can be freely adjusted within the range of fully closed to fully open. As a result, the flow rate of warm air or cold air passing through the flow control port 12 can be adjusted.

  In the first embodiment configured as described above, when the air conditioner 8 is operated by the controller 11, for example, warm air is blown into the underfloor space 4 from the outlet 9 of the indoor unit 8B in the heating mode. At this time, a desired heating temperature can be set by the controller 11.

  The warm air blown into the underfloor space 4 gradually heats the inside of the underfloor space 4 to increase the temperature, and also transfers heat to the floor material 3 to increase the temperature of the floor material 3. For example, when the opening / closing member 13 is slightly opened after the flooring 3 is sufficiently warmed, a part of the warm air in the underfloor space 4 flows to the room C side through the flow adjusting port 12. For this reason, the flow is gently generated in the underfloor space 4 and the warm air sufficiently reaches the corners in the underfloor space 4. Thereby, the temperature in the underfloor space 4 can be made substantially uniform. The opening / closing member 13 may be opened on the downstream side before blowing warm air into the underfloor space 4 and may be opened appropriately in the middle.

  The flooring 3 heated by the warm air in the underfloor space 4 radiates or convects the heat to warm the rooms A, B, and C. As described above, the temperature in the underfloor space 4 is kept almost uniform by the flow of warm air, so that the amount of radiant or convective heat from the flooring 3 becomes substantially equal over the entire surface.

  The warm air that has flowed to the room C side through the flow adjusting port 12 flows into the adjacent room B through the gaps such as under the door, the louver, and the space, without remaining in the room C, and further It also flows into the next room A. For this reason, some warm air which moved from underfloor space 4 flows through each room A, B, and C sequentially. In room A, warm air is sucked into the suction port 10. As a result, the warm air in the underfloor space 4 circulates while flowing in each room, and the warm air blowout from the indoor unit 8B to the underfloor space 4 becomes smooth.

  The warm air flowing through each room A, B, and C is at a very slow speed and does not feel the wind on the skin, so it is forcibly blown out by a fan from an indoor unit attached to each room as in the past. It is different from warm air.

  The floors of the rooms A, B, and C can also have the effect of floor heating. For this reason, since it is not necessary to install a floor heating apparatus, the capital investment can be reduced and the running cost can be reduced. Moreover, since it is warm from the bottom, sufficiently satisfactory heating can be obtained even if the set temperature of the air conditioner 8 is low, which can contribute to energy saving.

  The inefficiency at the time of heating in the conventional method is that a temperature difference of about 3 ° C. to 5 ° C. occurs between the floor and the ceiling. However, according to the present embodiment, the temperature difference between the vicinity of the floor and the ceiling is less than 1 ° C., and it has been found that the heating efficiency is very excellent. Moreover, the ceiling height of the building at this time was higher than usual, and there was no ceiling fan on the ceiling.

  The above is the description for the case of the heating mode, but it can be carried out in the same manner also in the case of the cooling mode.

  Next, another embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 4 is a schematic explanatory view showing a second embodiment of the present invention. In the figure, 21 is an underfloor space on a first floor in a detached building (two stories), and is sandwiched between a flooring 22 (specifically, a floor formed by stretching the flooring 22) and a foundation 23 in the same manner as described above. A heat insulating material 24 is laid on the upper surface of the base 23 below the region.

  A plurality of flow control ports 25 are provided at the important points of the flooring 22, and although not shown, the open / close members 13 (or open / close members 14) are respectively attached to the flow control ports 25. A plurality (three in the illustrated example) of rooms D, E, and F are formed by the inner wall 26 or the partition. Note that a heat insulating material (not shown) is attached to the inside of the outer wall 27 in the same manner as described above. Reference numeral 28 denotes a ceiling material on the first floor.

  29 is an underfloor space on the second floor, which is formed by an area sandwiched between the flooring 30 (or a floor formed by stretching the flooring 30) and the ceiling material 28 on the first floor, and the first floor below the area. A heat insulating material 31 is laid on the back of the ceiling.

  The floor material 30 on the second floor is also provided with a plurality of flow adjusting ports 32 at important points, and although not shown, the opening / closing member 13 (or the opening / closing member 14) is attached to each of the flow adjusting ports 32. Yes. A plurality (three in the illustrated example) of rooms G, H, and I are formed by the inner wall 33 or the partition.

  Reference numeral 34 denotes an air conditioner, which includes an outdoor unit 34A and an indoor unit 34B. The indoor unit 34B includes an air outlet 35 that blows out warm air or cold air, and a suction port 36 that sucks air from the indoor side. And the warm air or cold air blown from the blower outlet 35 of the indoor unit 34B is blown into the first floor underfloor space 21 and the second floor underfloor space 29 by an air supply path 37 provided in the building. In this case, a controller for controlling the air conditioner 34 is not shown. The air supply path 37 can use a space formed in stairs.

  Reference numeral 38 denotes a flow dividing means, which is provided at a lower end portion in the air supply passage 37 and is opposed to the blowout port 35. As the diversion means 38, for example, a switching valve can be used as shown in FIG. 5, but it is not limited to this. In this case, when the flow dividing means 38 is switched to the position of the solid line, the warm air or the cold air blown from the air outlet 35 can be guided and blown into the underfloor space 21 on the first floor, and at the position of the virtual line (two-dot chain line). By switching, warm air or cold air blown out from the air outlet 35 can be guided to the air supply path 37 and blown into the second floor space 29 on the second floor. Further, when the flow dividing means 38 is switched to a region between the position of the solid line and the position of the imaginary line, the warm air or the cold air blown out from the air outlet 35 is supplied to both the first floor underfloor space 21 and the second floor underfloor space 29. It is possible to blow separately, and the ratio of the blow amount can be changed. Reference numeral 39 denotes control means for switching the diversion means 38.

  4 and 5, reference numeral 40 denotes a ventilation path provided inside the building, the lower end communicates with the suction port 36 of the indoor unit 34B, and the upper end opens to the room G on the second floor. 40a is provided. 41 is a ceiling material on the second floor.

  In the second embodiment configured as described above, when the air conditioner 34 is operated by a controller (not shown), for example, in the heating mode, warm air is blown into the underfloor space 21 on the first floor from the outlet 35 of the indoor unit 34B. . At this time, the flow dividing means 38 is switched to the position of the solid line. In the heating mode, a desired heating temperature can be set in the controller.

  The warm air blown into the underfloor space 21 on the first floor gradually heats the air in the underfloor space 21 on the first floor, and the temperature rises, and heat is transferred to the flooring 22 to increase the temperature of the flooring 22. Let When the opening / closing member 13 (or the opening / closing member 14) is appropriately opened, part of the warm air in the underfloor space 21 on the first floor flows through the flow adjusting ports 25 and flows into the rooms D, E, and F, respectively. For this reason, the warm air flows gently in the underfloor space 21 on the first floor, and the warm air sufficiently reaches the corners in the underfloor space 21 on the first floor. Thereby, the temperature in the underfloor space 21 on the first floor can be made substantially uniform.

  The flooring 22 heated by the warm air in the underfloor space 21 on the first floor radiates, conducts, and convects the heat to warm the rooms D, E, and F. As described above, the temperature in the underfloor space 21 on the first floor is kept substantially uniform by the flow of warm air, so that the amount of heat radiated or convected from the entire surface of the flooring 22 becomes substantially equal. Thereby, nonuniformity does not arise in the amount of heat to each room D, E, and F.

  The warm air that has flowed to the room side through the flow adjusting port 25 flows into the adjacent room through the gaps such as under the doors, louvers, and columns, without staying in each room, and further, corridors, stairs, etc. Move to. A part of the warm air moves to the second floor through a space such as a staircase, and the living space on the second floor is heated to some extent and then flows into the ventilation path 40 from the inlet 40a. The warm air flowing into the ventilation path 40 is sucked into the indoor unit 34B from the suction port 36. In this way, the warm air in the first floor underfloor space 21 and the second floor underfloor space 29 circulates while flowing through the first floor and second floor living spaces, and therefore, the indoor unit 34B transfers to the first floor underfloor space 21. Warm air blows out smoothly.

  In particular, when it is desired to heat the second floor, the flow dividing means 38 is switched to a virtual line position. Thereby, the warm air blown out from the indoor unit 34B outlet 35 flows into the air supply path 37 side without going to the underfloor space 21 side on the first floor, and is guided by the air supply path 37 to be underfloor on the second floor. It is blown into the space 29.

  Due to the warm air blown into the second floor underfloor space 29, the air in the second floor underfloor space 29 is gradually heated and the temperature rises, and heat is transferred to the flooring 30 to raise the temperature of the flooring 30. Let At this time, when the opening / closing member 13 (or the opening / closing member 14) is slightly opened, part of the warm air in the underfloor space 29 on the second floor flows through the flow adjustment port 32 and flows into the rooms G, H, and I, respectively. . For this reason, the warm air flows gently in the second floor underfloor space 29, and the warm air sufficiently reaches the corners. Thereby, the temperature in the underfloor space 29 on the second floor can be made substantially uniform.

  The flooring 30 heated by the warm air in the underfloor space 29 on the second floor radiates and convects the heat to warm the rooms G, H, and I. As described above, the temperature in the second floor underfloor space 29 is kept substantially uniform by the flow of warm air, so that the amount of heat radiated or convected from the entire surface of the flooring 30 becomes substantially equal. Thereby, nonuniformity does not arise in the amount of heat to each room G, H, and I.

  The warm air that has flowed to the room side through the flow adjusting port 32 flows into the adjacent room through a gap such as under the door, a louver, or a space, for example, without staying in each room. And after heating each room, it flows in into the ventilation path 40 from the said inflow port 40a, and is attracted | sucked by the indoor unit 34B from the said suction inlet 36. FIG. In this way, the warm air in the second floor underfloor space 29 circulates while flowing through the second floor living space, so that warm air is smoothly blown from the indoor unit 34B to the second floor underfloor space 29.

  On the other hand, when it is desired to heat the first floor and the second floor at the same time, the flow dividing means 38 is switched to an intermediate position between the position of the solid line and the position of the virtual line. Thereby, the warm air blown out from the outlet 35 of the indoor unit 34B is divided into one that flows to the underfloor space 21 side of the first floor and one that flows to the underfloor space 29 side of the second floor via the air supply path 37. The At this time, by changing the switching position of the flow dividing means 38, the ratio between the flow rate to the underfloor space 21 side of the first floor and the flow rate to the underfloor space 29 side of the second floor can be finely adjusted.

  The above is the description for the case of the heating mode, but it can be carried out in the same manner also in the case of the cooling mode. Moreover, although said 2nd embodiment is a case of 2 stories, this invention is not limited to it, It is possible to apply also to the building more than 3 stories.

  In the case of a building having three or more floors, although not shown, a flow dividing means is provided in an air supply path communicating from the first floor underfloor space to the nth floor (n ≧ 2) underfloor space. It is configured so that warm air or cold air can be sent to the under floor space of any floor up to the floor. With such a configuration, even a building such as a building can be applied sufficiently regardless of the number of floors.

  According to the present invention, a plurality of rooms can be efficiently cooled and heated with at least one air conditioner. A central type air conditioning system can be realized with a facility cost of about 20% compared to the conventional system. In the conventional air conditioning system, an air conditioner is attached to each room and air conditioning is performed by forced air blowing into the living space. However, depending on the room or a place inside the room, the air conditioning effect is uneven and the efficiency is low. On the other hand, the air conditioning system of the present invention efficiently uses a single air conditioner to efficiently utilize a plurality of rooms by utilizing heat conduction to the flooring, radiation from the flooring, and convection heat. It can be air-conditioned.

  INDUSTRIAL APPLICABILITY The present invention can be effectively used as an air conditioning system that can efficiently cool and heat all rooms in a building by using at least one air conditioner.

It is a schematic explanatory drawing which shows 1st embodiment of the air conditioning system which concerns on this invention. It is a schematic perspective view which shows an example of the opening / closing member for adjusting the flow volume of warm air or cold air. It is a schematic perspective view which shows the other example of the opening / closing member for adjusting the flow volume of warm air or cold air. It is a schematic explanatory drawing which shows 2nd embodiment of the air conditioning system which concerns on this invention. It is a schematic sectional drawing of the principal part which shows the example which uses a switching valve, for example as a diversion means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foundation 2 Outer wall 3 Floor material 4 Underfloor space 5 Inner wall 6, 7 Heat insulating material 8 Air conditioner 8A Outdoor unit 8B Indoor unit 9 Air outlet 10 Suction port 11 Controller 12 Flow control port 13, 14 Opening and closing member 21 First floor floor space 22 Floor material 23 Foundation 24 Heat insulation material 25 Flow adjustment port 26 Inner wall 27 Outer wall 28 First floor ceiling material 29 Second floor floor space 30 Floor material 31 Heat insulation material 32 Flow adjustment port 33 Inner wall 34 Air conditioner 35 Air outlet 36 Suction port 37 Feed Airway 38 Diverging means 39 Control means 40 Ventilation path 41 Ceiling material on the second floor

Claims (7)

  An air conditioning system that air-conditions an indoor space of a building, wherein warm air or cold air conditioned by an air conditioner is circulated in an underfloor space partitioned by a floor material, and the indoor temperature is adjusted via the floor material Air conditioning system.   The air conditioning system according to claim 1, wherein a flow adjustment port is provided in the floor material, and the flow of warm air or cold air in the underfloor space is adjusted by the flow adjustment port.   The air conditioner is formed with an air outlet for sending conditioned warm air or cold air into an underfloor space, and a suction port for sucking air circulated by flowing into the room from the flow adjustment port. The air conditioning system according to claim 1 or 2.   The said underfloor space is formed by the area | region pinched by the flooring and the foundation, and the heat insulating material is laid by the bottom part of the said underfloor space, The Claim 1 thru | or 3 characterized by the above-mentioned. Air conditioning system.   The lower floor space of the upper floor is formed by a region sandwiched between the floor material and the ceiling material of the lower floor, and a heat insulating material is laid at the bottom of the lower floor space. 4. The air conditioning system according to any one of 4.   A diversion unit is disposed in an air supply path for sending warm air or cold air conditioned by the air conditioner from an underfloor space on the first floor to an underfloor space on the nth floor (n ≧ 2), and the diversion means causes the air from the underfloor space on the first floor. 6. The air conditioning system according to claim 5, wherein warm air or cold air is sent to an n floor floor space.   The air conditioning system according to any one of claims 1 to 6, wherein the floor material is any one of a wood material, a fiber material, a synthetic resin material, a stone material, and a concrete material, or a combination thereof.

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