JP2022113280A - Floor radiation/convention-type heating system - Google Patents

Abstract

To provide a floor radiation/convection-type cooling/heating system which can quickly cool and heat a room by switching on an air conditioner by maximally utilizing a cooling/heating wind from the air conditioner, and can be expected in an energy saving effect.SOLUTION: A floor radiation/convection-type heating system comprises: a support body 7 suspended on a floor slab; a plurality of long-length metal-made lumber girders 2 supported to the support body; a plurality of long-length metal-made joists 3 arranged at upper faces of the lumber girders in parallel with one another, and supporting a floor material while abutting on a lower face of the floor material; and a chamber 4a having a square cross section shape forming a flow passage for supplying the cooling/heating wind from the air conditioner to the lumber girders. A flow-through port through which the cooling/heating wind flows toward an upper part from a lower part of the floor material is formed at least at one point of the floor material, a flat plate-shaped heat insulation plate is laid at the substantially-same height as that of lower faces of the lumber girders so as to block the circulation of the cooling/heating wind in a vertical direction between the adjacent lumber girders, and a flow-through flow passage of the cooling/heating wind is formed between the floor material and the heat insulation plate being an underfloor space.SELECTED DRAWING: Figure 2

Description

There is an application for application of Article 30, Paragraph 2 of the Patent Act 1) Disclosure by distribution [Sales date] October 2, 2020 [Sales location] Kyotanabe City Hall [Publisher] Takashi Kyomura [Details of the disclosed invention] Patent Documents describing the floor radiant convection air conditioning system according to application 2021-009397 have been distributed.

The present invention relates to a floor radiant convection air conditioning system for buildings such as gymnasiums, buildings, and houses.

Patent Document 1 discloses a first support member that supports a plate-shaped partition member that forms the outline of a room from the back side of the room, the first support member having an air flow path formed therein; A second support member that supports the first support member at a position sandwiched between the partition member and the partition member, the second support member being arranged to intersect the first support member and having an air flow path therein. a second support member formed thereon, and a communication hole through which the air flow paths communicate with each other at a position where the first support member and the second support member contact due to the intersection, An outlet hole formed in each of the first support member and the second support member for leading air from the air flow path of the first support member to a space on the back side of the room, a supporting member set in which the first supporting member is formed with an outlet hole opened in a direction in which the air discharged from the outlet hole flows along the rear surface of the partitioning member; the first supporting member and the second supporting member; an air temperature regulating device for pre-conditioning the temperature of air flowing through the support member; comprising a plurality of said first support members and said second support members; each of said plurality of said second support members linearly formed and arranged at predetermined intervals; a first chamber for supplying air to one end of each of the plurality of second support members; and each of the plurality of second support members. a second chamber that supplies air to the other end; the first chamber causes air to flow in a direction in which the air reaches the one end of each of the arranged second support members in order wherein the second chamber is configured such that the air reaches the other end of each of the arranged second support members in a direction opposite to the order in which the air reaches the one end. A heating and cooling system is disclosed.

In Patent Document 2, height-adjustable support legs are installed on a floor slab of a building at predetermined intervals, and a cross-sectional hat-shaped obi is arranged between the receiving parts provided on the upper part of each support leg, In addition, an air conditioning system for a sports facility attached to a floor structure in which joists are arranged in parallel, joists are arranged on the upper parts of the joists in a direction orthogonal to the joists, and floor materials are laid on the upper parts of the joists. In the structure, a first chamber consisting of a cylindrical body having a rectangular cross section is arranged on the floor slab in a direction orthogonal to the above-mentioned slab, and warm air is sent out from an air conditioner communicating with this first chamber. Alternatively, air for air conditioning such as cold air is circulated, and a heat insulating sheet is arranged to cover the lower part of the floor material over the adjacent large partitions that are juxtaposed, and at that time, the upper part of the flange part of each large partition and the above-mentioned receiver A second chamber is formed between the floor material and the heat insulating sheet by fixing the end of the heat insulating sheet to the upper part of the floor slab, and the first chamber divides the floor slab into two. While arranging in a straight line, the second chamber is arranged in both directions perpendicular to the first chamber, and the air conditioning passing through the first chamber is placed at a predetermined spaced position of the first chamber. A blower is arranged to suck air for air conditioning and blow it into the second chamber, and the floor material is warmed or cooled by the air for air conditioning passing through the second chamber to adjust the temperature of the floor material. The room is air-conditioned by radiation from the upper floor surface, spacing fixtures are placed on the wall slabs of the building, wall plates are attached to the front of the stud material placed between these spacing fixtures, and the wall slab and A third chamber is formed in the space between the wall plate arranged in front and communicates with the second chamber to send air for air conditioning from the second chamber to the ventilation opening provided on the wall surface. Then, an air-conditioning structure for sports facilities is disclosed in which the air for air-conditioning is blown into the room from the ventilation opening, part or all of the air in the room is sent again to the air conditioner, and is used as new air for air-conditioning.

Japanese Patent No. 5335376 Japanese Patent No. 5348996

The invention described in Patent Document 1 aims to suppress the diffusion of cold and warm air jetted from the outlet hole of the joist in the direction away from the floor material. A blocking plate is installed at the height of the flange of the joist, which is the height closest to the injection port. Since the blockage plate between the joists blocks the flow of cold and warm air in the vertical direction, the cold and warm air that flows through the floor from the communication opening of the floor material is limited to the cold and warm air between one joist at one communication opening. Since the amount of circulation to the room is extremely small, there is a problem that the sensing of the temperature sensor in the room is delayed and the cooling or heating continues to be applied indefinitely. There is a problem that a communication port must be provided for each space between joists if cold and warm air is to flow through. There is a problem that the appearance of the product is inferior.

The invention described in Patent Document 2 has the problem that the heat source for cooling and heating the underfloor space is only the air conditioner, so there is a small number of heat sources for cooling and heating the room, and there is a problem that it takes time to cool and heat the room. In addition, the first duct, through which the cool and warm air from the air conditioner first flows under the floor, should be installed under the obiki, and in order to spread the cold and warm air over the entire floor of the gymnasium, etc., the underfloor surface Since the purpose is to widen the space between them, in order to secure a larger space, a heat insulating sheet that hangs down greatly from the obiki is installed. For this reason, there is a problem that the space sandwiched between the underfloor surface and the heat insulating sheet is too wide and the effect of air conditioning is difficult to appear, or the problem that the energy saving effect deteriorates when the output of the air conditioner is increased.

The present invention was invented in view of these problems, and is a floor radiant convection cooling and heating system that can heat and cool a room in a short period of time after the air conditioner is turned on by making the most of the cold and warm air from the air conditioner, and is expected to have an energy-saving effect. The task is to provide

In the context of the present invention, heat transfer and convection are synonyms, and heat radiation and radiation are synonyms.

The floor radiant convection type cooling and heating system according to claim 1 comprises a plurality of supports vertically installed on the floor slab, and long lengths supporting the supports and arranged in parallel to form flow paths of cold and warm air. a plurality of scale-shaped metal obiki; and the flooring materials that are arranged on the upper surface of the obiki in a direction orthogonal to and parallel to the obiki, and are in contact with the lower surface of the floor material that constitutes the room. Supporting, a plurality of long metal joists forming cold and warm air flow paths, and arranged so that the upper surface is in contact with the lower surface of the above-mentioned obi, and cool and warm air from the air conditioner installed in the room and a chamber forming a flow path for feeding to the joist, wherein a first through hole through which cold and warm air flows is provided in a range where the chamber and the obi are in contact, and the joist and the joist A second through hole through which cold and hot air flows is provided in the range where the joist intersects and contacts, and a plurality of ejection holes capable of ejecting cold and hot air into the underfloor space are arranged side by side at a predetermined interval on the side of the joist, and the floor A plurality of through-flow openings through which cool and warm air can flow through the floor material from below to above are provided around the peripheral edge of the room of the floor material, and are flat so as to block the flow of cold and warm air in the vertical direction between the adjacent obi. The plate-like panel of is laid at substantially the same height as the lower surface of the large drawer, and a flow path of cool and warm air is formed between the floor material and the plate-like panel.

The floor radiant convection cooling and heating system according to claim 2 is the floor radiation convection cooling and heating system according to claim 1, wherein the upper wall of the chamber and the plate-like panel each have a cooling/heating unit in a range where the chamber and the plate-like panel overlap in plan view. It is characterized by providing a large opening through which the wind can flow.

Claim 3 is the floor radiant convective cooling and heating system according to Claim 1 or 2, characterized in that the range of the large opening is the entire range in which the chamber and the plate-shaped panel overlap in plan view. do.

According to claim 4, the floor radiative convection type cooling and heating system according to any one of claims 1 to 3 is arranged such that the cool and warm air flowing between the floor material and the plate-like panel is passed through the through-flow port by natural convection or forced convection means. It is characterized by allowing the flow to flow through the room.

The floor radiant convection type cooling and heating system according to claim 1 of the present invention is a floor that is cooled or warmed while flowing cool and warm air from the air conditioner under the floor and flowing cool and warm air from under the floor to above the floor. It is a system that cools and heats a room by radiating heat (heat radiation) from the timber. ), heat radiation from the joist and the joist, and heat conduction from the joist cools or warms the floor material, and the room is cooled and heated by the radiant heat (thermal radiation) from the floor material. System. In the present invention, cold and warm air is blown into the narrow underfloor space in the vertical direction between the plate-shaped panel laid at approximately the same height as the lower surface of the oiki and the lower surface of the floor material, so that the conventional floor slab and floor material Compared to the wide and large underfloor space in the vertical direction with the bottom surface, the volume is considerably reduced to about 1/2 to 1/10, so it is difficult to change the temperature of the cold and warm air. Cold air is circulated back into the room from the underfloor space, which has a smaller temperature difference than before, and the heat radiated from the floor material cools the room temperature in an extremely short time after the room's air conditioner is turned on. The room temperature can be maintained by the radiant heat from the floor material even if there are many people coming and going, and there is also an energy saving effect.

In addition, since the plate-shaped panel is laid at substantially the same height as the lower surface of the ohiki so as to block the flow of cold and warm air in the vertical direction between the adjacent ohiki, the lower surface of the floor material and the above-mentioned The underfloor space formed by the plate-shaped panel is communicated over the entire area between the bottom of the joist and the plate-shaped panel in the vertical direction, or the top of the joist and the floor material in the vertical direction. Since the plate-like panel and the lower surface of the floor material are in communication, the cool and warm air jetted from the joist can freely flow over the entire space below the floor material.

In the floor radiant convection type cooling and heating system according to claim 2, cool and warm air having a temperature close to the temperature of the air conditioner is allowed to flow into the large flow path, and at the same time, between the plate-like panel and the lower surface of the floor material Therefore, a large amount of cool and warm air with a temperature close to the temperature of the air conditioner flows into the narrow underfloor space between the floor material and the plate-like panel, so that the cold and warm air flows into the floor material. Heat transfer (convection), heat transfer to joists and joists due to cool and warm air (convection), heat radiation from joists to floor materials (radiation), heat conduction and heat radiation from joists to floor materials (radiation) It is possible to cool and heat the floor material more powerfully and effectively. In addition, since the difference between the temperature of the cool and warm air that flows through and the set temperature of the air conditioner can be made smaller than before, it is possible to minimize the adverse effect of the cold and warm air that flows through on the temperature of the room. Therefore, the synergistic effect of the heat radiated to the room from the floor material (thermal radiation) and the minimization of the adverse effect on the temperature of the room of the cool and warm air that flows through the room can increase the efficiency of heating and cooling the room.

The floor radiant convection type cooling and heating system according to claim 3 maximizes the cool and warm air from the chamber in the narrow underfloor space between the plate-like panel and the lower surface of the floor material, so that the room by the floor material The synergistic effect of the radiant heat (thermal radiation) and the reduction of the adverse effect of the cold and warm air flowing through the room on the temperature of the room in the direction away from the set temperature of the air conditioner can further increase the efficiency of room cooling and heating. .

The floor radiation convection type cooling and heating system according to claim 4 has the effect of promoting the convection of air in the room by cool and warm air.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view for explaining the general configuration of a floor radiation convection cooling and heating system of the present invention; FIG. 2 is an explanatory view in which the constituent members of the floor radiation convective cooling and heating system of FIG. 1 are separated in the vertical direction; FIG. 2 is an explanatory diagram of a state in which the floor material and the floor joist are removed from the perspective view of FIG. 1 ; In the perspective view of FIG. 1, it is explanatory drawing of the state which has installed the plate-shaped panel which interrupts|blocks an underfloor space so that it may cover the range of a chamber by the substantially same height as the lower surface of a large drawer in planar view. In the perspective view of FIG. 1, it is an explanatory view of a state in which a plate-like panel is installed at approximately the same height as the lower surface of the obi, with the range of the chamber being a large opening in plan view, and blocking the underfloor space. The plate-shaped panel is also a schematic diagram, (a) is an explanatory drawing of the plate-shaped panel that covers the range of the chamber in plan view, and (b) is an explanatory drawing of the plate-shaped panel that has a large opening in the range of the chamber in plan view. is. FIG. 2 is an explanatory diagram of a state in which a floor material is partially removed from the perspective view of FIG. 1; FIG. 5 is an explanatory plan view of FIG. 4 with the plate-like panel removed, and is an explanatory view of the flow of cold and hot air from the chamber to the joists in the case of a configuration in which no large opening is provided. FIG. 5 is an explanatory plan view of FIG. 4 with the plate-shaped panel removed, and is an explanatory view of the flow of cool and warm air in the joists in the case of the configuration in which the large opening is not provided. FIG. 5 is a front explanatory view of FIG. 4; 4 is an enlarged explanatory view of a portion A in FIG. 3; FIG. 5 is an enlarged explanatory view of a B portion in FIG. 4; FIG. It is explanatory drawing which shows the installation height of a plate-shaped panel. 14 is an enlarged view of the F portion of FIG. 13; FIG. FIG. 10 is a cross-sectional image explanatory view in the longitudinal direction of a conventional form that does not have a plate-like panel. FIG. 4 is a cross-sectional image explanatory view in the longitudinal direction of the obiki of the embodiment of the present invention having a plate-like panel. It is an explanatory view of the chamber, (a) is a schematic explanatory perspective view of the chamber having a first through hole that matches the length of the short side of the large, (b) is a length close to the length of the room. 1 is a schematic perspective view of a chamber having an opening; FIG.

A floor radiation convection cooling and heating system 1 of the present invention is a floor radiation convection cooling and heating system 1 for buildings such as gymnasiums, buildings, and houses.

First, the current floor radiation convection air conditioning system will be explained. As shown in FIG. 15, cool and warm air set to an arbitrary temperature by the air conditioner 50 passes through the inlet 13 provided in the floor material 6, flows into the chamber 4 under the floor, and passes through the first through hole 11. It flows into the flow path of the large pull 2, passes through the second through hole 12, flows into the flow path of the joist 3, and is injected from the injection hole 10 provided in the joist 3 into the underfloor space 25 near the bottom surface of the floor material 6. . The cool and warm air that is jetted and flows into the underfloor space 25 is returned into the room 100 from the flow-through port 40 provided in the floor material 6 .

The temperature felt by the user 60 is primarily heat radiation from the floor material 6 and heat transfer from the air in the room 100 . The heat transferred to the flooring material 6 is firstly heat transfer from the joist 3, which is heat transferred and stored from the cold and hot air flowing through the flow path, and secondly, the cooling and heating jetted from the injection holes 10. The third is the heat transfer from the wind, and the third is the heat radiation from the joist 3 and the joist 3, which is heat transferred and stored by the cool and warm air passing through the flow path. Further, the smaller the difference between the temperature of the air flowing back into the room 100 from the through-flow port 40 provided in the floor material 6 and the temperature set by the air conditioner 50, the faster the room temperature of the room 100 reaches the set temperature. The larger the difference, the more difficult it becomes for the room temperature of the room 100 to reach the set temperature.

Therefore, if the temperature of the cool and warm air flowing in the underfloor space 25 can be brought close to the temperature when it flows from the air conditioner 50 as much as possible and the flow rate can be increased, the heat from the cold and warm air to the hoiki 2 and the joist can be increased. Heat transfer from the joist 2 and the joist to the floor material 6 increases, and the heat transfer of the cool and warm air jetted from the injection hole 10 of the joist 3 to the floor material 6 increases and contacts the floor material 6. If the heat conduction from the joist 3 to the floor material 6 is increased and the flow path of the cold and hot air under the floor is narrowed, compared to the conventional large-capacity flow path underfloor space 25, the cooling and heating Since the change in temperature of the wind is small, cold and warm air with a small difference from the room temperature of the room 100 flows through, and the idea of increasing the efficiency of floor cooling and heating is reached, and the floor radiation convection cooling and heating system 1 of the present invention I came up with the idea.

As shown in FIG. 1 or FIG. 2, the floor radiant convective cooling and heating system 1 of the present invention includes a plurality of supports 7 vertically installed on a floor slab 20, and supported by the supports 7 and arranged in parallel. In addition, a plurality of long metal bonitos 2 forming a flow path of cold and warm air, and a row on the upper surface of the bonito 2 in a direction orthogonal to the bonito 2 and in parallel, A plurality of elongated metal joists 3 forming a flow path for cold and hot air contacting the lower surface of the flooring 6 constituting the room and supporting the flooring 6; a chamber 4 that is disposed in contact with the room and forms a flow path for supplying cool and warm air from an air conditioner installed in the room to the hood 2, and the chamber 4 and the hood 2 are in contact with each other. A first through hole 11 through which cool and warm air flows is provided in a range where the joist 3 A plurality of ejection holes 10 capable of ejecting cool and warm air into the underfloor space 25 are arranged in parallel at a predetermined interval on the side surface of the floor material 6, and around the peripheral edge of the room of the floor material 6, cool and warm air is blown upward from the bottom of the floor material 6. A plurality of through-flow ports 9 through which air can flow through are provided, and a flat plate-like panel 8 (8a or 8b) is attached to the lower surface of the obi 2 so as to block the flow of cool and warm air in the vertical direction between the adjacent obi 2. , to form a flow path for cool and warm air between the floor material 6 and the plate-like panel 8 (8a or 8b).

As shown in FIGS. 1 to 10, the floor radiant convection type cooling and heating system 1 includes a support 7 vertically installed on a floor slab 20, a hobiki 2 supported by the support 7, and above the hobiki 2. The joist 3 placed and fixed in a direction orthogonal to the longitudinal direction of the joist 2, the floor material 6 fixed and supported in contact with the upper surface 16 of the joist 3, and the floor material 6 are constituent members. An air conditioner 50 installed in a room 100, a chamber 4 (4a or 4b) forming a flow path for allowing cool and warm air from the air conditioner 50 to flow into the large drawer 2, and the above A flat plate-like panel 8 (8a or 8b) laid so as to block the flow of cold and hot air in the vertical direction between the obis 2 is provided.

As shown in FIG. 1, the floor material 6 is installed over the entire area of a room 100 such as a gymnasium, and has a function as a horizontal heat storage plate. A cooling effect or a heating effect can be obtained by thermal radiation (radiation) from the cooled flooring 6 or the heated flooring 6 . Further, the floor material 6 is provided with an inflow port 13 for allowing cold and warm air from an air conditioner 50 installed in the room 100 to flow under the floor in a direction 30 as shown in FIG. Alternatively, as shown in FIG. 7, a plurality of through-flow openings 9 are provided around the periphery of the room 100 of the floor material 6 so that cold and warm air can flow through the floor material 6 from below to above.

1, 2 or 10, the support 7 is vertically installed on the floor slab 20 to support the hoist 2 from below. In order to prevent bending of the large pulleys 2, a plurality of the large pulleys 2 are vertically installed at predetermined intervals. The support 7 can be height-adjusted by screws, for example, so that the obi 2 and the floor material 6 can be made horizontal.

Next, as shown in FIG. 2 or FIG. 11, the ohiki 2 are made of metal and are arranged in parallel and have an opening on the bottom surface. The cross-sectional shape forming the air flow path is substantially square, and the length is substantially the same as the length in one direction in the room 100. A plurality of the air flow paths are arranged in rows at predetermined intervals. Examples of the shape having an opening on the lower surface include a hat shape and a groove steel shape. Since the lower surface of the large drawer 2 is an opening, a bottom closing plate 17 is attached to block the opening in the area that does not come into contact with the chamber 4 to form a flow path for cold and warm air flowing from the chamber 4 . The chamber 4 is provided with a first through hole 11 at a position in contact with the hobiki 2 to allow cold and warm air to flow. The lower surface of the large drawer 2 is entirely covered with the chamber 4 or the bottom closing plate 17 .

By using a metal such as steel as the material of the bonito 2, when the cold air or warm air flowing in the flow path directly contacts the bonito 2, the temperature of the cold air or warm air is heat-transferred to the bonito 2 ( convection) and heat is accumulated, and the floor material 6 can be cooled or warmed by thermal radiation (radiation).

Next, as shown in FIG. 1, FIG. 2 or FIG. 12, the joists 3 are arranged on the upper surface of the hoist 2 in a direction perpendicular to and parallel to the hoist 2 to form a room 100. The bottom surface of the floor material 6 is in contact with and supports the floor material 6. The opening is covered with a bottom cover plate 15 to form a flow path for cool and warm air. It is long and made of metal. Examples of the shape having an opening on the lower surface include a hat shape and a groove steel shape. The interval between the parallel rows is set to a predetermined interval so that the floor material 6 can be used for a long period of time even when doing sports in a gymnasium. A second through hole 12 is provided in the bottom covering plate 15 as a hole through which cool and warm air can flow with the large drawer 2 .

In addition, as shown in FIG. 12, a second through hole 12 through which cool and warm air flows is provided in the upper wall of the joist 2 at a position where it intersects and contacts with the joist 3, and cool and warm air is directed to the side surface of the joist 3. A plurality of ejection holes 10 capable of ejecting air into the underfloor space 25 are provided at predetermined intervals. The lower surface of the floor joist 3 is entirely covered with the large drawer 2 or the bottom covering plate 15 .

The joist 3 is made of metal, and the temperature of the cold or warm air is transferred (convection) to the joist 3 and stored by direct contact with the joist 3 as the cool air or warm air flowing through the flow path in the joist 3 comes into direct contact with the joist 3. The flooring 6 is cooled or warmed by thermal radiation, and the flooring 6 in contact with the upper surface 16 of the joist 3 is cooled or warmed by heat conduction.

Next, the chamber 4 will be explained. The chamber 4, as shown in FIG. 2, FIG. 3, FIG. 15, or FIG. The cross-sectional shape forming a flow path for inflowing from the inlet 13 of 6 in the direction 30 and feeding to the large drawer 2 has a rectangular shape. The chamber 4 is made of a heat-insulating material, and one end is open so that cold and warm air is flowably connected from the air conditioner 50 through an inlet 13 provided in the floor material 6, and the other end does not leak cold and warm air. so that the flow path is closed.

In the chamber 4, as shown in FIG. 17(a), a first through hole 11 having a width substantially the same as the width in the lateral direction of the bonito 2, which serves as a flow path into the bonito 2. is provided, or, as shown in FIG. There is a chamber 4b provided with a large opening 40 having a width.

Next, the plate-like panel 8 will be explained. The plate-like panel 8 is positioned at substantially the same height as the lower surface of the hoiki 2 so as to block the flow of cold and warm air in the vertical direction between the hoiki 2 arranged at a predetermined interval. It is a flat panel that is laid between the Hiki 2. The plate-like panel 8 may be made of any material as long as it divides the cold and hot air into two in the vertical direction, and is preferably made of a material having a heat insulating effect. The space between the floor material 6 and the plate-like panel 8, which corresponds to a part of the underfloor space 25 formed between the floor slab 20 and the floor material 6, is formed as a flow path for cool and warm air. ing.

Since the plate-shaped panel 8 is laid between the joists 2 arranged in a row at substantially the same height as the lower surface of the joist 2, the cold and hot air blown from the joist 3 is prevented by the joist 3 from the floor material. Since the portion in contact with the joist 3 and the plate-like panel 8 in the vertical direction communicate with each other, all the cold and hot air can flow under the floor material 6 over the entire area.

As shown in FIGS. 13 to 16, the space serving as the channel for all-round flow is a large space having a height H corresponding to the general height of the space corresponding to the distance between the floor material 6 and the floor slab 20. In contrast, the space of the present invention has a height h corresponding to the space between the flooring 6 and the plate-like panel 8 . The height h varies depending on the purpose and size of the building, but corresponds to about 1/2 to 1/10 of the height H. For example, the height h and the height H are compared to 1/4, 1/5, and 1/6.

As shown in FIG. 15, the through-flow channel of the present invention is changed from a large-spaced through-flow channel having a height H corresponding to the distance between the conventional flooring 6 and the floor slab 20 to a through-flow channel as shown in FIG. , by forming a narrow flow passage with a height h between the floor material 6 and the plate-like panel 8, which corresponds to about 1/2 to 1/10 of the height H, from the ejection hole 10 of the joist 3 If the flow rate of cold and warm air is the same, a narrow cross-flow channel can prevent the temperature of the air in the cross-flow channel from changing much more than a large cross-flow channel. The difference from the temperature set at 50 can be reduced.

As a result, the difference between the temperature in the narrow through-flow passage and the temperature set by the air conditioner 50 can be made smaller than before. A temperature close to the temperature set by the air conditioner 50 can be maintained for a long time, and the temperature of the joist 3 and the hoist 2 stored with heat can be kept close to the temperature set by the air conditioner 50 for a long time. It is possible to maintain the temperature of the cool/warm air flowing through the recirculation port 9 and allow it to flow through at a temperature closer to the temperature set by the air conditioner 50 than conventionally.

As a result, the temperature of the recirculated cold and warm air can be brought to a temperature close to the temperature set by the air conditioner 50, so that the temperature of the air in the room 100 can be suppressed. Thermal radiation (radiation) to the user 60 in the room 100 and the air in the room 100 can be more effectively enhanced.

Moreover, as shown in FIG. 4 or FIG. 6(a), the plate-like panel 8 has a form A in which the length in the longitudinal direction is approximately the same length L1 as the total length of the large pulley 2, and a form A shown in FIG. As shown in 6(b), there is a form B in which the length in the longitudinal direction is L2, which is the length of the width of the chamber 4 (length L3) shortened from the full length of the large drawer 2 .

Next, a combination of the plate-like panel 8 and the chamber 4 will be described. For example, as shown in FIG. 4 or 16, the combination A of the plate-like panel 8a and the chamber 4a, or, for example, as shown in FIG. 5 or 16, the combination of the plate-like panel 8b and the chamber 4b There is B.

In the case of the combination A, a flat plate-like panel 8a is placed approximately on the lower surface of the hoiki 2 so as to block the flow of cold and warm air in the vertical direction between the hoiki 2 arranged in rows at a predetermined interval. This is the case where the floor material 6 and the plate-shaped panel 8a are laid at the same height to form a cold and warm air flow path between the floor material 6 and the plate-like panel 8a, and as shown in FIG. A narrow through-flow channel with a height h between the flooring 6 and the plate-like panel 8a corresponding to /10 is formed.

In the case of combination A, as shown in FIG. 4, the cool and warm air flowing in from the inlet 13 in the direction 30 is directed to the ends of the large pull 2 and the chamber as shown in FIGS. It flows into the flow path of the large drawer 2 from the first through hole 11 provided in each of the drawers 4a. The cool and warm air jetted from the jet holes 10 of the floor joists 3 flows through the through-flow passage with a narrow gap between the floor material 6 and the plate-like panel 8a, passes through the through-flow port 9, and flows into the room 100. - 特許庁

Further, in the case of the combination B, as shown in FIGS. 4 and 5, the upper wall of the chamber 4a and the plate-like panel 8a having the length L1, respectively, in plan view, the chamber 4a and the plate-like panel Large openings 40 through which cool and warm air can flow are formed in the overlapping range (length L3) of chamber 4b and plate-like panel 8b of length L2. There is also a combination of the chamber 4b and the plate-like panel 8b in which the large opening 40 is the entire range in which the chamber 4 and the plate-like panel 8 overlap in plan view. The size of the large opening 40 is within the range where the chamber 4 and the plate-like panel 8 overlap, and is a size suitable for the size of the room 100 and the mode of use, for example, a size of about 80% of the entire range. Variable.

In the case of combination B, as shown in FIG. 5, the cold and warm air flowing in from the inlet 13 in the direction 30 spreads into the chamber 4b approximately the width of the room 100, as shown in FIG. A large opening 40 having the same width as the room 100 is provided, and the cold and warm air flows upward over substantially the entire width of the room 100 from the large opening 40 having a length substantially the same as the width of the room 100. Then, at the same time as it flows into the flow path of the ohiki 2, a large amount of it flows at once and continuously into the narrow cross-flow flow path with the height h between the floor material 6 and the plate-like panel 8b.

Therefore, in the case of the combination B, the difference between the temperature set in the air conditioner 50 and the temperature of the cool/warm air can be made smaller than in the case of the combination A in the temperature inside the narrow flow passage. As a result, the difference between the temperature in the narrow through-flow passage and the temperature set by the air conditioner 50 can be further reduced. A temperature closer to the temperature set by the air conditioner 50 can be held for a longer period of time than before, and the temperature of the joist 3 and the large pulley 2 storing heat is further brought closer to the temperature set by the air conditioner 50 than before. The temperature can be maintained for a long time, and the temperature of the cool and warm air flowing through the recirculation port 9 can be made to flow through at a temperature that is much closer to the temperature set by the air conditioner 50 than before.

As a result, the temperature of the recirculated cool and warm air can be brought even closer to the temperature set by the air conditioner 50, so the recirculated cool and warm air is generally set at the temperature of the air in the room 100 by the air conditioner 50. In addition to being able to more strongly suppress the adverse effect of keeping away from the temperature, the heat radiation (radiation) from the floor material 6 to the user 60 in the room 100 and the air in the room 100 can be more effectively increased. can.

Next, as shown in FIG. 1, the flow-through ports 9 are openings provided at a plurality of locations corresponding to the peripheral edge of the room of the floor material 6, through which cool and warm air flows from below to above the floor material 6. is.

In addition, the cool and warm air between the floor material 6 and the plate-like panel 8 passes through the through-flow port 9 and is configured to cool and heat the room by means of natural convection or forced convection. For example, a blower is installed as the forced convection means, but natural convection is preferable in consideration of underfloor maintainability.

Therefore, the cool and warm air jetted from the jet holes 10 of the joist 3 passes through the through-flow passage of the underfloor space 25 sandwiched between the lower surface of the flooring 6 and the plate-like panel 8 in the vertical direction through the through-flow port 9. It flows toward the joist 3 and the joist 2 while heat is being transferred to it.

Next, the flow of cool and warm air will be described. As shown in FIGS. 2, 8, 9 or 16, the cool and warm air from the air conditioner 50 flows in the direction 30, enters the chamber 4a or 4b via the inlet 13, and flows in the direction K1. .

Then, in the case of the combination A of the plate-shaped panel 8a in the chamber 4a, cold and warm air flows into the large drawer 2 via the first through hole 11. As shown in FIG. Then, in the flow path of the large drawer 2, cold and warm air flows in the direction K2. Then, from the large drawer 2 to the joist 3, cold and warm air flows into the flow path of the joist 3 via the second through hole 12 and flows in the direction K3. Cold and warm air is jetted from the jet holes 10 arranged on both side walls of the joist 3 into the underfloor space 25 near the lower surface of the floor material 6 in the direction K4a or the direction K4b. Then, the cool and warm air jetted into the narrow cross-flow channel having a height h between the floor material 6 and the plate-shaped panel 8b transfers heat (convection) to the floor material 6, and then flows into the room 100 of the floor material 6. Cold and warm air flows through the room 100 from below to above the floor material 6 via a plurality of through-flow openings 9 provided around the periphery.

By ejecting the cool and warm air from the ejection holes 10 of the joist 3 into the narrow cross-flow channel with the height h between the floor material 6 and the plate-like panel 8b, the temperature of the cool and warm air in the cross-flow channel can be reduced from the conventional Since the difference from the temperature set by the air conditioner 50 can be reduced, the heat transfer (convection) from the cold and warm air to the floor material 6 increases, and the heat conduction from the joist 3 to the floor material 6 increases. The effect of heat transfer to the floor material 6 is enhanced. In addition, it is possible to suppress the adverse effect of keeping the temperature of the air in the room 100 away from the temperature set by the air conditioner 50 due to the cool and warm air flowed through the room 100 . As a result, the room 100 can be cooled and heated more effectively than before.

Further, in the case of the combination B of the chamber 4b and the plate-like panel 8b, cold and warm air flows into the large drawer 2 via the large opening 40, and the cold and warm air flows in the direction K2 in the flow path of the large drawer 2. At the same time as it flows, the cool and warm air that has flowed in the chamber 4b flows into the narrow cross-flow passage with a height h between the floor material 6 and the plate-like panel 8b at once and continuously in large amounts, thereby expanding the cross-flow passage. It flows while heat is transferred (convection) to the flooring 2, the joist 3, and the floor material 6, and flows through the room 100 from the flow-through port 9.

In addition to ejecting cold and warm air from the ejection holes 10 of the joist 3 into a narrow cross-flow channel having a height h between the floor material 6 and the plate-like panel 8b, a large opening 40 is formed in the narrow cross-flow channel. Since a large amount of cool and warm air flows directly from the chamber 4b via the , the difference between the temperature of the cool and warm air in the through-flow passage and the temperature set by the air conditioner 50 can be further reduced than before. . As a result, the heat transfer (convection) from the cold and hot air to the floor material 6 is further enhanced, and the heat transfer effect to the floor material 6 such as the heat conduction from the joist 3 to the floor material 6 is further enhanced. It will rise further. In addition, the adverse effect of keeping the temperature of the air in the room 100 away from the temperature set by the air conditioner 50 due to the cool and warm air flowing through the room 100 can be further suppressed. As a result, there is a remarkable and advantageous effect that the room 100 can be cooled and heated more effectively than conventionally.

1 floor radiant convection air conditioning system 2 large pull 3 joist 4 chamber 6 floor material 7 support 8 plate-like panel 9 through-flow port 10 ejection hole 11 first through hole 12 second through hole 13 inlet 15 bottom closing plate 16 upper surface 17 Bottom cover plate 20 Floor slab 25 Underfloor space 30 Direction 35 Direction 40 Large opening 50 Air conditioner 60 User 100 Room

Claims (4)

a plurality of supports suspended above the floor slab;
a plurality of elongated metal pulleys forming cold and warm air flow paths, which are supported by the support and arranged in parallel;
Cold and warm air flow paths are formed on the upper surface of the bonito, which are aligned in a direction perpendicular to and parallel to the bonito and contact the lower surface of the floor material that constitutes the room to support the floor material. a plurality of elongated metal joists;
A chamber arranged so that the upper surface is in contact with the lower surface of the obi, and forming a flow path for supplying cool and warm air from an air conditioner installed in the room to the obi,
A first through hole through which cold and warm air flows is provided in the range where the chamber and the obi are in contact,
A second through hole through which cold and warm air flows is provided in the range where the joist and the joist intersect and contact each other,
A plurality of ejection holes capable of ejecting cool and warm air to the underfloor space are arranged side by side at a predetermined interval on the side surface of the joist,
A plurality of through-flow openings through which cool and warm air can flow from below to above the floor material are provided around the peripheral edge of the room of the floor material,
A flat plate-shaped panel is laid at substantially the same height as the lower surface of the ohiki so as to block the flow of cool and hot air in the vertical direction between the adjacent ohiki, and between the floor material and the plate-shaped panel. A floor radiant convection type air conditioning system characterized by forming a cold and warm air flow path in the floor. 3. A large opening through which cool and hot air can flow is provided in each of the upper wall of the chamber and the plate-like panel in a range where the chamber and the plate-like panel overlap in plan view. 2. The floor radiation convection air conditioning system according to 1. 3. The floor radiation convection cooling and heating system according to claim 1, wherein the range of the large opening is the entire range in which the chamber and the plate-like panel overlap in plan view. 4. The floor radiation convection according to any one of claims 1 to 3, characterized in that the cool and warm air flowing between the floor material and the plate-like panel is allowed to flow through the room through the flow opening by means of natural convection or forced convection. air conditioning system.

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