Radiation air conditioning system

Abstract

A radiation air conditioning system (100) is provided with: a plurality of blow-out nozzles (13) having slit-shaped blow-out ports (blow-out slits (22)); a fan (15) for blowing air to the blowing nozzle (13); and a radiant heat generating device (31) that generates heat radiation. The plurality of blow-out nozzles (13) are arranged side by side with a gap such that the blow-out ports (blow-out slits (22)) are located on the same plane. Each of the radiant heat generating devices (31) is provided at a position that is a side surface with respect to the blowing direction of the blowing nozzle (13). Induced air induced by blow-out air blown from the blow-out nozzle (13) passes through the gap.

Description

Technical Field

[0001] The invention relates to a radiation air conditioning system for indoor air conditioning by utilizing the radiation heat of water. Background Art

[0002] As a conventional technique, a radiation air conditioning system using a radiation panel is known, in which a plurality of pipes through which heat media such as hot and cold water flow are embedded in the panel to perform air conditioning in a room or the like by heat radiation (for example, see Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 7-19533 Summary of the invention

[0006] In existing radiant air conditioning systems, convective heat transfer caused by air circulating in the space is almost not generated, so objects that generate cooling heat cannot be fully utilized to cool the space and comfort cannot be improved.

[0007] Therefore, the present invention is made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a radiant air-conditioning system capable of improving the thermal comfort of a space.

[0008] The radiant air conditioning system of the present invention comprises: a plurality of blowing nozzles having slit-shaped blowing outlets; a fan for blowing air toward the blowing nozzles; and a radiant heat generating unit for generating heat radiation. The plurality of blowing nozzles are arranged side by side with gaps in a manner that the blowing outlets are located on the same surface. The radiant heat generating units are respectively arranged at positions that are lateral to the blowing direction of the blowing nozzles. Induced air induced by the blowing air blown from the blowing nozzles passes through the gaps.

[0009] According to the present invention, it is possible to provide a radiant air-conditioning system that can improve the thermal comfort of a space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a perspective view showing the basic structure of the radiant air-conditioning system according to Embodiment 1 of the present invention.

[0011] Figure 2 It is a side view showing the overall configuration of the radiant air conditioning system.

[0012] Figure 3 This is a layout diagram showing an installation image of an air supply device in a radiation air conditioning system.

[0013] Figure 4 It is a plan view showing the flow direction of air in the air supply device.

[0014] Figure 5 This is a schematic connection diagram showing the connection relationship between the radiant heat generating device, the cold and hot water pipes, and the cold and hot water generating device in the radiant air conditioning system.

[0015] Fig. 6A This is a perspective view showing the arrangement relationship between the blowing nozzles and the hot and cold water radiant tubes constituting the radiant air conditioning system.

[0016] Figure 6B It is a cross-sectional view showing the arrangement relationship between the blowing nozzles and the hot and cold water radiant tubes constituting the radiant air conditioning system.

[0017] Figure 7 This is a structural diagram showing the arrangement relationship between the blowing nozzles of the air supply device and the cold and hot water radiant tubes of the radiant heat generating device constituting the radiant air conditioning system.

[0018] Figure 8 It is a cross-sectional view showing the flow directions of the air blown from the blower nozzle of the air supply device and the induced air generated near the cold and hot water radiant tubes.

[0019] Fig.9A It is a perspective view showing the arrangement relationship between the blowing nozzles and the cold and hot water radiant tubes constituting the radiant air conditioning system according to Embodiment 2 of the present invention.

[0020] Fig. 9B It is a cross-sectional view showing the arrangement relationship between the blowing nozzles and the hot and cold water radiant tubes constituting the radiant air conditioning system.

[0021] Fig. 9C It is a side view showing the arrangement relationship between the blowing nozzles and the cold and hot water radiant tubes constituting the radiant air conditioning system.

[0022] Fig. 10A It is a perspective view showing the arrangement relationship between the blowing nozzles and the cold and hot water radiant tubes constituting the radiant air conditioning system according to Embodiment 3 of the present invention.

[0023] Fig. 10B It is a cross-sectional view showing the arrangement relationship between the blowing nozzles and the hot and cold water radiant tubes constituting the radiant air conditioning system.

[0024] Fig.11A It is a cross-sectional view showing a tube installation portion before installing a cold or hot water radiant tube in a blow-out nozzle constituting a radiant air conditioning system.

[0025] Fig. 11B It is a cross-sectional view showing the installation state of the pipe installation part of the blowing nozzle and the hot and cold water radiant pipes constituting the radiant air conditioning system.

[0026] Fig. 12A It is a perspective view showing the arrangement relationship between the blowing nozzles and the cold and hot water radiant tubes constituting the radiant air conditioning system according to Embodiment 4 of the present invention.

[0027] Fig. 12B It is a cross-sectional view showing the arrangement relationship between the blowing nozzles and the hot and cold water radiant tubes constituting the radiant air conditioning system.

[0028] Fig.13A It is a cross-sectional view showing the arrangement relationship between the air supply area and the non-air supply area in the blowing nozzle constituting the radiant air conditioning system.

[0029] Fig. 13B It is a cross-sectional view showing the state of a hot and cold water radiant tube and thermally conductive grease provided in a blow-out nozzle constituting a radiant air conditioning system. DETAILED DESCRIPTION

[0030] The radiant air conditioning system of the present invention comprises: a plurality of blowing nozzles having slit-shaped blowing outlets; a fan for blowing air toward the blowing nozzles; and a radiant heat generating unit for generating heat radiation. The plurality of blowing nozzles are arranged side by side with gaps in a manner that the blowing outlets are located on the same surface. The radiant heat generating units are respectively arranged at positions that are lateral to the blowing direction of the blowing nozzles. Induced air induced by the blowing air blown from the blowing nozzles passes through the gaps.

[0031] According to such a structure, the air (induced air) induced to the gap of the blowing nozzle exchanges heat with the surface of the radiation heat generating unit located on the side of the blowing nozzle, and becomes one with the blowing air from the blowing nozzle, thereby sending air to the air-conditioned space as a planar uniform flow with a slight wind speed. In addition, the induced air usually has a larger air volume than the blowing air, so it becomes a structure in which the radiation heat generating unit performs heat exchange with the induced air more intensively than the blowing air, which can increase the heat conduction. In addition, by installing the radiation heat generating unit on the side of the blowing nozzle, the temperature is also transferred to the blowing nozzle itself by heat conduction, which can improve the heat exchange based on the induced airflow and increase the radiation area. Therefore, it is possible to achieve air conditioning in which temperature deviation or airflow is suppressed in the entire air-conditioned space, and a space without uneven body temperature can be achieved. That is, it can be formed into a radiation air conditioning system that can improve the thermal comfort of the space.

[0032] In addition, in the radiation air conditioning system of the present invention, the radiation heat generating unit may also be composed of a plurality of tubes. Thus, the radiation heat generating unit can be divided by a plurality of tubes to increase the surface area. Therefore, heat conduction from the tube to the air or the blow-out nozzle is promoted, and the effect of suppressing uneven body temperature in the air-conditioned space can be further improved.

[0033] In addition, the radiation air conditioning system of the present invention may also be configured to include: an outdoor unit having a heat pump; and a hot and cold water generating cooler, which delivers water whose temperature is adjusted by the refrigerant whose temperature is adjusted by the outdoor unit, and delivers the water whose temperature is adjusted by the hot and cold water generating cooler to the pipe. As a result, it is not necessary to use a refrigerant such as Freon or a Freon substitute in the indoor pipe. Therefore, compared with the case of using Freon or a Freon substitute, the construction can be simplified, and the waste treatment can also be simplified.

[0034] In addition, in the radiation air conditioning system of the present invention, a plurality of tubes may be built into the side member constituting the blow-out nozzle. Thus, when manufacturing the blow-out nozzle, there is no need to manufacture and install the tubes separately, and the blow-out nozzle with the tubes built in can be manufactured by only manufacturing the side member. Therefore, the blow-out nozzle can be manufactured simply at a lower cost. Moreover, the built-in tube further promotes heat conduction relative to the blow-out nozzle. Therefore, heat radiation with the human body and the like disposed in the air-conditioned space can further improve the thermal comfort felt by the people living in the air-conditioned space.

[0035] In addition, in the radiation air conditioning system of the present invention, the blowing nozzle may have a tube setting portion, which can install the tube relative to the surface of the side member constituting the blowing nozzle, and the tube setting portion and the setting surface of the tube are in close contact with more than 1 / 2 of the outer peripheral surface of the tube. Thus, even after the blowing nozzle is constructed, the tube can be freely installed and removed. Therefore, after the blowing nozzle is constructed, the number of tubes that matches the residence can be easily adjusted or maintenance after construction can be performed.

[0036] In addition, in the radiation air conditioning system of the present invention, the blowing nozzle may have an air supply path action surface adjacent to the internal air path of the blowing nozzle inside the side member constituting the blowing nozzle, and an air supply path non-action surface isolated from the internal air path, and the pipe is arranged on the air supply path non-action surface. As a result, the induced air usually has a larger air volume than the blown air, so that it becomes a structure that can perform heat exchange more concentratedly with respect to the induced air, thereby increasing the heat conduction. Therefore, promoting heat conduction from the pipe to the air or the blowing nozzle can further improve the effect of suppressing uneven body temperature in the air-conditioned space.

[0037] In addition, in the radiation air conditioning system of the present invention, the gap between the blowing nozzle and the tube may be filled with heat-conductive grease, and the tube and the blowing nozzle may be closely attached via the grease. Thus, the heat conduction area between the tube and the blowing nozzle can be increased, and heat conduction to the induced air can be promoted. Therefore, the effect of suppressing uneven body temperature in the air-conditioned space can be further improved.

[0038] Hereinafter, the embodiments of the present disclosure will be described with reference to the accompanying drawings. In addition, the following embodiments are examples of specific implementations of the present invention and do not limit the technical scope of the present invention. In addition, the figures described in the embodiments are schematic figures, and the size and thickness ratios of the components in the figures do not necessarily reflect the actual size ratios.

[0039] (Implementation Method 1)

[0040] First, refer to Figure 1 and Figure 2 A radiant air-conditioning system 100 according to Embodiment 1 will be described. Figure 1 It is a perspective view showing the basic structure of the radiant air-conditioning system 100 according to Embodiment 1 of the present invention. Figure 2 1 is a side view showing the overall configuration of the radiation air conditioning system 100. Figure 1 and Figure 2 In the figure, only the main devices and representative structures constituting the system are shown. For the detailed structure of each device, refer to Figure 3 The following drawings will be described later.

[0041] The radiant air conditioning system 100 is a system that plays a role of improving the thermal environment of a living space (air-conditioned space 1 ), that is, improving the thermal comfort of the living space, through a combination of airflow, heat exchange, and heat radiation.

[0042] Specifically, if Figure 1 As shown, the radiation air conditioning system 100 is composed of an air supply device 11 and a radiation heat generating device 31. The air supply device 11 is composed of: blowing nozzles 13a, 13b, 13c, 13d collectively referred to as blowing nozzles 13; a fan box 14; a fan 15 (see Figure 2 );and blowing slits 22a, 22b, 22c, 22d collectively referred to as blowing slits 22. The radiant heat generating device 31 is configured to include: cold and hot water radiant tubes 32a, 32b, 32c, 32d collectively referred to as cold and hot water radiant tubes 32; a water supply pipe 33; a drainage pipe 34; a cold and hot water generating cooler 35; a water supply pump 36; an outdoor unit 42 and a refrigerant circuit 43.

[0043] The radiant air conditioning system 100 is installed in a conditioned space 1 which is a part of a residence. Here, the conditioned space 1 refers to a space used as a place where residents live, including a living room, a dining room, a bedroom, a single room or a children's room. In addition, it does not include a closet, a wardrobe or a mechanical room where residents do not move around. In addition, the conditioned space 1 is a closed space formed by walls including a ceiling surface, a floor surface and a side wall surface, but in Figure 1In the figure, the side wall surface and the ceiling surface of the front side are shown in perspective in order to easily observe the configuration of the radiation air conditioning system 100 installed in the air-conditioned space 1. The fan box 14, the blowing nozzle 13 (blowing nozzles 13a, 13b, 13c, 13d) and the cold and hot water radiation tubes 32 (cold and hot water radiation tubes 32a, 32b, 32c, 32d) of the radiation heat generating device 31 constituting the air supply device 11 are respectively arranged near the ceiling surface of the air-conditioned space 1.

[0044] The fan box 14 is a frame body that collects and houses the equipment and air paths required for supplying circulating air to the air-conditioned space 1 and sending air to the blowing nozzles 13 (blowing nozzles 13a, 13b, 13c, 13d). The details will be described later. A plurality of components, headed by a fan 15, are provided inside the fan box 14. The fan box 14 is arranged in contact with the ceiling surface and the inner side wall surface in the air-conditioned space 1. In addition, in the present embodiment, the fan box 14 is arranged in contact with the ceiling surface and the inner side wall surface, but it does not necessarily need to be in contact with the inner side of the air-conditioned space 1. For example, it may be arranged in a manner suspended from the ceiling surface or built into a suspended ceiling in the room.

[0045] The hot and cold water generating cooler 35 is a device for generating water for generating air conditioning and heat radiation of the air-conditioned space 1, and includes a mechanism for heating and cooling water inside, i.e., a refrigerant coil 35a, a water tank for storing water for heating and cooling, and a mechanism for controlling the temperature of the water. In addition, the refrigerant coil 35a is connected to the outdoor unit 42 via a refrigerant circuit 43 through which the refrigerant flows.

[0046] The hot and cold water generating cooler 35 is connected to the water supply pipe 33 and the drain pipe 34, and is configured such that water passing therethrough contacts the refrigerant coil 35a. That is, the temperature of the water can be adjusted by changing the temperature of the refrigerant coil 35a.

[0047] The water supply pipe 33 is a pipe for conveying water whose temperature is adjusted by the hot and cold water generating cooler 35 to the hot and cold water radiant pipe 32. The hot and cold water generating cooler 35, the water pump 36 and the hot and cold water radiant pipe 32 are connected to the water supply pipe 33 in order from the upstream side.

[0048] The drain pipe 34 is a pipe for returning the water that circulates in the hot and cold water radiation pipe 32 to the hot and cold water generating cooler 35. The drain pipe 34 is connected to the hot and cold water radiation pipe 32 and the hot and cold water generating cooler 35 in order from the upstream side. The water supply pump 36 is a pump that generates the flow of water for heating and cooling to be sent to the hot and cold water radiation pipe 32. In addition, in the present embodiment, the water supply pipe 33, the drain pipe 34, the hot and cold water generating cooler 35 and the water supply pump 36 are arranged in the air-conditioned space 1, but they can also be arranged outside the air-conditioned space 1 beyond the ceiling surface, the floor surface and the side wall surface of the structure, and even if they are arranged at any position that does not interfere with the living space, it will not affect the action and effect of the present invention.

[0049] The outdoor unit 42 is an outdoor unit installed in an outdoor space, and has a heat pump 44 composed of a compressor 42a, an expander 42b, an outdoor heat exchanger 42c, a blower fan 42d, and a four-way valve 42e. The outdoor unit 42 uses an outdoor unit of a common structure, so the detailed description of each device (compressor 42a, expander 42b, outdoor heat exchanger 42c, blower fan 42d, four-way valve 42e) is omitted.

[0050] The heat pump 44 is connected to the refrigerant coil 35 a via the refrigerant circuit 43 , and the outdoor unit 42 adjusts the temperature of the refrigerant flowing through the refrigerant coil 35 a by controlling the heat pump 44 .

[0051] The refrigerant coil 35a functions as a heat absorber or a radiator in a refrigeration cycle including a compressor, a radiator, an expander, and a heat absorber, and is configured so that the refrigerant introduced from the outdoor unit 42 absorbs heat (cools) or dissipates heat (heats) when it circulates inside. A four-way valve 42e is connected to the refrigeration cycle including the refrigerant coil 35a, so that in the cold and hot water generating cooler 35, it is possible to switch between a cooling mode state in which the refrigerant is circulated in a first direction by the four-way valve 42e to cool the water, and a heating mode state in which the refrigerant is circulated in a second direction by the four-way valve 42e to heat the water.

[0052] Here, the first direction is the direction in which the refrigerant flows in the compressor 42a, the outdoor heat exchanger 42c, the expander 42b, and the refrigerant coil 35a in sequence. In addition, the second direction is the direction in which the refrigerant flows in the compressor 42a, the refrigerant coil 35a, the expander 42b, and the outdoor heat exchanger 42c in sequence. In the refrigerant coil 35a, the introduced water can be cooled or heated.

[0053] The blowing nozzle 13 (blowing nozzles 13a, 13b, 13c, 13d) plays the role of blowing the air blown from the fan 15 (fans 15a, 15b) to the air-conditioned space 1, and is a roughly rectangular parallelepiped component having a blowing slit 22 (blowing slit 22a, 22b, 22c, 22d). In this embodiment, the blowing nozzles 13a, 13b, 13c, 13d are all of the same shape. Figure 1 As shown, one of the two faces with the smallest cross-sectional area among the six faces of the blowing nozzles 13a, 13b, 13c, and 13d is in contact with the fan box 14, and the blowing nozzles 13 (blowing nozzles 13a, 13b, 13c, and 13d) and the fan box 14 are connected to each other via holes for air to pass through. In addition, another face of the two faces with the smallest cross-sectional area among the six faces is in contact with the side wall surface of the air-conditioned space 1 (the side wall surface opposite to the side wall surface on the inner side that contacts the fan box 14). In addition, the other four faces except the two faces with the smallest cross-sectional area are arranged to be non-contacting with the fan box 14, the top surface of the air-conditioned space 1, and the adjacent blowing nozzles 13 (for example, the blowing nozzles 13a and the blowing nozzles 13b), so that the air occupying the air-conditioned space 1 can pass through the surroundings of the blowing nozzles 13. In this embodiment, the space where the air around the blowing nozzles 13 connected to the air-conditioned space 1 passes is determined as the induction space 2. In addition, all of the blowing slits 22a, 22b, 22c, and 22d are located on the same plane substantially parallel to the ceiling surface. That is, it can be said that the blowing slits 22 of the blowing nozzles 13a, 13b, 13c, and 13d are arranged side by side with gaps in the same plane to form an air supply surface.

[0054] For details on the configuration of other components of the air supply device 11, refer to Figure 3 and Figure 4 This will be described later.

[0055] The hot and cold water radiant pipes 32 (the hot and cold water radiant pipes 32a, 32b, 32c) are hollow components for changing the temperature of the air occupying the inside of the air-conditioned space 1 or generating heat radiation between the wall surface constituting the air-conditioned space 1 and the objects (furniture or human body, etc.) existing inside, and water can pass through the inside. The hot and cold water radiant pipes 32 (the hot and cold water radiant pipes 32a, 32b, 32c) are respectively made of the same material, and in particular, the surface thereof is preferably made of a material with a high emissivity such as resin, but other materials may be used instead.

[0056] Next, refer to Figure 5 Details of the radiant heat generating device 31 , including details of the connection relationship with other cold and hot water radiant pipes 32 , the water supply pipe 33 , and the drainage pipe 34 , will be described later.

[0057] Next, refer to Figure 3The detailed structure of the air blowing device 11 will be described. Figure 3 1 is a layout diagram showing an installation image of the air sending device 11 in the radiation air conditioning system 100 .

[0058] The air supply device 11 is a device that delivers a planar uniform flow of a slight wind speed from the air supply surface to the air-conditioned space 1. Figure 1 As shown, the air supply device 11 is arranged near the ceiling surface of the air-conditioned space 1, and supplies a planar uniform flow with a slight wind speed from the ceiling surface of the air-conditioned space 1 to the ground.

[0059] Specifically, if Figure 3 As shown, the air supply device 11 is configured to include: a blowing nozzle 13 (blowing nozzles 13a, 13b, 13c, 13d); a fan box 14; fans 15a, 15b collectively referred to as fans 15; air supply chambers 18a, 18b collectively referred to as air supply chambers 18; an air inlet 21; a blowing slit 22 (blowing slits 22a, 22b, 22c, 22d); and fan outlets 23a, 23b collectively referred to as fan outlets 23. In the present embodiment, the air supply device 11 is configured to be divided into a plurality of (here, two) air supply units 12 (air supply units 12a, 12b).

[0060] Here, the air supply unit 12a includes blowing nozzles 13a, 13b, a part of the fan box 14, a fan 15a, an air supply chamber 18a, a part of the suction port 21, blowing slits 22a, 22b, and a fan blow-out port 23a. In addition, the air supply unit 12b includes blowing nozzles 13c, 13d, a part of the fan box 14, a fan 15b, an air supply chamber 18b, a part of the suction port 21, blowing slits 22c, 22d, and a fan blow-out port 23b. In addition, the components constituting the air supply unit 12 do not necessarily have to be the above-mentioned structure, as long as they include at least one fan, a blowing nozzle and an air supply chamber, a suction port, a blowing slit, and a fan blow-out port.

[0061] In this way, by dividing the air blowing device 11 into a plurality of air blowing units 12, an air blowing mechanism in any air-conditioned space 1 can be represented by a combination of the air blowing units 12, and the system can be made universal.

[0062] Next, refer to Figure 4 The flow of air in the air sending device 11 will be described. Figure 4 It is a plan view showing the flow of air in the air sending device 11 .

[0063] In the air supply device 11, the air A0 sucked in from the air inlet 21 is divided into air A1a flowing into the air supply unit 12a and air A1b flowing into the air supply unit 12b by the action of the blower 15a and the blower 15b. Here, the air supply unit 12a and the air supply unit 12b have the same structure and are arranged symmetrically about the boundary line between the air supply unit 12a and the air supply unit 12b, so the relationship of the air volume of the air A1a = the air volume of the air A1b is substantially established in the air supply unit 12a and the air supply unit 12b. Then, the air A2a and the air A2b passing through the blower outlet 23a and the blower outlet 23b are temporarily accumulated in the air supply chamber 18a and the air supply chamber 18b, respectively, and are pushed by the blower 15a and the blower 15b to the blowing nozzles 13a, 13b and the blowing nozzles 13c, 13d in sequence.

[0064] Nozzle air A3a, A3b, A3c, A3d are blown to the blowing nozzles 13a, 13b, 13c, 13d, respectively. In addition, the relationship between the respective air volumes is not strictly regulated, but it is preferred that the blowing nozzles 13a and 13b, and the blowing nozzles 13c and 13d are symmetrically arranged about the center lines of the air supply chambers 18a and 18b, respectively, so that the air volume of nozzle air A3a = the air volume of nozzle air A3b = the air volume of nozzle air A3c = the air volume of nozzle air A3d. Furthermore, the nozzle air A3a, A3b, A3c, and A3d flow in the nozzle length direction, respectively, and a part of them is used as the blowing air Q0 (refer to Figure 8 ) flows out from the blowing slits 22a, 22b, 22c and 22d in the direction of depth of the drawing. Figure 4 Although not described in the figure, in order to make the air volume flowing out from the blowing slit 22 constant regardless of the nozzle length direction, a rectifying fin or the like may be provided inside the blowing nozzle 13.

[0065] Hereinafter, the components constituting the air supply device 11 of the present embodiment will be described in detail. The air supply unit 12a and the air supply unit 12b have the same components, and therefore, here, the air supply unit included in the air supply device 11 will be described by taking the air supply unit 12a as an example.

[0066] As described above, the air supply unit 12a is configured to include the blowing nozzles 13a, 13b, a portion of the fan box 14, the fan 15a, the air supply chamber 18a, a portion of the suction port 21, the blowing slits 22a, 22b and the fan blowing port 23a.

[0067] The fan 15a generates a pressure difference between the air-conditioned space 1 and the fan box 14, and takes in circulating air from the air-conditioned space 1 through the air inlet 21 and blows it into the air supply chamber 18a. The fan 15a includes an impeller 16a and a motor 17a (see Figure 3 ) and blows air by driving the impeller 16a using the motor 17a.

[0068] The air supply chamber 18a is a space for temporarily storing the circulating air blown from the fan 15a, and plays a role in making the distribution of the air supplied from the fan 15 uniform so that the air supply amount to the blowing nozzle 13a and the blowing nozzle 13b is equal. In addition, in the fan box 14, the fan 15a and the air supply chamber 18a are separated by a wall (partition plate) and communicated with each other via the fan blow-out port 23a. The air supply chamber 18a is connected to the blowing nozzle 13a and the blowing nozzle 13b on the surface opposite to the surface connected to the fan 15a, respectively, to form a continuous air path from the fan 15a to the blowing nozzle 13a and the blowing nozzle 13b, respectively.

[0069] The blowing nozzles 13a and 13b have blowing slits 22a and 22b on the surfaces facing the ground among the six surfaces they have. The blowing slits 22 (blowing slits 22a and 22b) are outlets for blowing air supplied through the air supply chamber 18a and the blowing nozzles 13 (blowing nozzles 13a and 13b) to the air-conditioned space 1, and are formed in a slit shape (equivalent to a slit) from the fan box 14 along the direction extending from the blowing nozzles. Figure 3 In the left and right directions). When the length of the blowing nozzles 13a and 13b in the left and right directions is used as the blowing nozzle length, it is preferred that the length is sufficiently long relative to the length of one side of the contact surface with the fan box 14, and the contact surface with the fan box 14 preferably makes the length of the normal direction of the blowing slits 22a and 22b longer relative to the tangent direction. At this time, when the length of the side of the contact surface of the blowing nozzles 13a and 13b is, for example, 17 cm vertically and 4 cm horizontally, the blowing nozzle length is set to about 2m. In addition, the blowing nozzles 13a and 13b are arranged side by side in a manner that the blowing slits 22a and 22b are located on the same surface that is substantially parallel to the ceiling surface, and a prescribed interval (for example, 16 cm) is provided between the blowing nozzles 13a and 13b. Thereby, the induced space 2 between the blowing nozzles 13a and 13b can be fully ensured, and an airflow in the blowing direction covering a wide range can be generated. Furthermore, the air blowing unit 12a and the air blowing unit 12b are arranged side by side so that the same predetermined interval (for example, 16 cm) is formed between the air blowing nozzle 13b and the air blowing nozzle 13b of the air blowing unit 12b.

[0070] The air supply unit 12a is configured as described above.

[0071] Furthermore, in the air supply unit 12a, when the fan 15a is working, the air in the air-conditioned space 1 is sucked in from the suction port 21, and the sucked air is sent to the air supply chamber 18a through the fan blow-out port 23a. Furthermore, the air sent to the air supply chamber 18a is sent to the blow-out nozzle 13a. The air sent to the blow-out nozzle 13a is blown out from the blow-out slit 22a toward the ground of the air-conditioned space 1. In addition, the air sent to the air supply chamber 18a is also sent to the blow-out nozzle 13b, similarly to the blow-out nozzle 13a. The air sent to the blow-out nozzle 13b is blown out from the blow-out slit 22b toward the ground of the air-conditioned space 1. At this time, air (induced air Q1 described later) induced by the air (blown air Q0 described later) blown out from the blowing slits 22a and the blowing slits 22b flows into between the blowing nozzles 13a and 13b, and the flowing induced air Q1 is blown toward the ground of the air-conditioned space 1 together with the blowing air Q0.

[0072] Next, refer to Figure 5 , the detailed structure of the radiant heat generating device 31 is described. Figure 5 3 is a schematic diagram showing the connection relationship between the hot and cold water radiant pipe 32 and other related structures in the radiant heat generating device 31. Figure 5 In the figure, the refrigerant circuit 43 and the outdoor unit 42 are not shown and are omitted.

[0073] The radiation heat generating device 31 is a device that uses the radiation heat of multiple pipes through which refrigerants such as cold and hot water flow to perform air conditioning in the air-conditioned space 1. In this embodiment, the radiation heat generating device 31 plays the role of adjusting the temperature of the induced air Q1 blown out from the air supply device 11 and providing radiation heat to people and objects in the air-conditioned space 1.

[0074] Specifically, if Figure 5 As shown, the radiant heat generating device 31 is configured to include cold and hot water radiant tubes 32 (cold and hot water radiant tubes 32a, 32b, 32c, 32d), a water supply pipe 33, a drainage pipe 34, a cold and hot water generating cooler 35 and a water supply pump 36.

[0075] The hot and cold water radiant pipes 32 have a plurality of pipes of the same number on all sides of the blowing nozzle 13. Furthermore, the hot and cold water radiant pipes 32 are arranged so that the distances between all adjacent pipes are the same. For example, Figure 5 The tubes 32a1 to 32a4 are present on the same surface (one side of the blowing nozzle 13) and are located at a certain distance. These distances are set in a manner such that the distance between adjacent tubes is 10 mm, for example. Figure 5 The tubes 32a5 to 32a8 are present on the same surface (the other side surface of the blowing nozzle 13) and are also located at positions with a certain distance therefrom.

[0076] In this embodiment, the hot and cold water radiant pipe 32a constitutes a pipe group having a total of eight straight pipes (pipes 32a1, 32a2, 32a3, 32a4, 32a5, 32a6, 32a7, 32a8) on the opposite sides of one blowing nozzle 13a. Similarly, the hot and cold water radiation tube 32b, the hot and cold water radiation tube 32c and the hot and cold water radiation tube 32d are respectively configured on the side of the blowing nozzles 13b~13d as a tube group having a total of 8 straight-line tubes 32b1, 32b2, 32b3, 32b4, 32b5, 32b6, 32b7, and 32b8, a tube group having tubes 32c1, 32c2, 32c3, 32c4, 32c5, 32c6, 32c7, and 32c8, and a tube group having tubes 32d1, 32d2, 32d3, 32d4, 32d5, 32d6, 32d7, and 32d8.

[0077] Here, in these pipe groups, the cold and hot water radiant pipes 32a, 32b, 32c, and 32d whose last symbols are "1" and "2", "3" and "4", "5" and "6", and "7" and "8" are directly connected to one end side, and the pipes whose last symbols are "1", "3", "5", and "7" are directly connected to the water supply pipe 33 on the other end side, and the pipes "2", "4", "6", and "8" are directly connected to the drainage pipe 34 on the other end side. Thus, the cold and hot water radiant pipes 32a, 32b, 32c, and 32d form a single closed system connected to the same water supply pipe 33 and drainage pipe 34. Thus, the supply paths of the cold and hot water that will serve as the heat source can be integrated into one, so that the equipment can be simplified. In addition, the connection relationship of these hot and cold water radiant tubes 32 does not necessarily need to be connected in this order, and there is no problem as long as all of the following conditions are satisfied: (a) at least one tube is connected to the water supply pipe 33, and the same number of tubes as the tubes connected to the water supply pipe 33 are connected to the drainage pipe 34; and (b) when the tubes are directly connected to each other, one of them is connected to the water supply pipe 33 and the other is connected to the drainage pipe 34. For example, the hot and cold water radiant tubes 32a, 32b, 32c, and 32d whose last digits are "1", "2", "5", and "6" are connected to the water supply pipe 33, and the tubes whose last digits are "3", "4", "7", and "8" are connected to the drainage pipe 34, and the tubes whose last digits are "1" and "3", "2" and "4", "5" and "7", and "6" and "8" are directly connected.

[0078] In order to reliably supply water and drain water to all the hot and cold water radiant tubes 32a, 32b, 32c, and 32d, the water supply pipe 33 and the drain pipe 34 preferably use pipes with a diameter thicker than the hot and cold water radiant tubes 32a, 32b, 32c, and 32d, and form a structure that can handle a large flow rate. For example, when the diameter of all pipes included in the hot and cold water radiant tubes 32 is 4 mm, the water supply pipe 33 and the drain pipe 34 each use a diameter of about 20 mm. In addition, although the thickness of the water supply pipe 33 and the drain pipe 34 is expressed as "diameter", the cross section does not necessarily have to be circular, and for example, a pipe having a rectangular cross section may be used.

[0079] Next, refer to Figure 1 and Figure 5 , the flow of water circulating inside radiant heat generating device 31 will be described.

[0080] First, if Figure 1 and Figure 5 As shown, the water introduced into the cold and hot water generating cooler 35 is heated or cooled in the cold and hot water generating cooler 35. Here, the heating or cooling uses, for example, a heat pump method using a refrigerant. In addition, the heated or cooled cold and hot water is temporarily stored in a tank or the like built into the cold and hot water generating cooler 35, and the water is fed to the water supply pipe 33 at an arbitrary flow rate by driving the water feeding pump 36. Thereafter, the cold and hot water supplied to the water supply pipe 33 is respectively distributed and transported to the cold and hot water radiation pipes 32a, 32b, 32c, and 32d, circulated near the side of the blowing nozzle 13 of the air supply device 11, and recovered to the drain pipe 34. The water recovered to the drain pipe 34 is sequentially sent to the cold and hot water generating cooler 35 and used as a heat source again. In this way, the water in the radiant heat generating device 31 is repeatedly used as a heat source, and the system can be completed with a small amount of water. However, if there is a concern that the quality of water flowing inside may deteriorate due to scale adhering to the piping, it is preferable to set another path connected to a purification filter or a water pipe to ensure redundancy and purify or replace the water.

[0081] Here, as a temperature transition image of water when using the radiant heat generating device 31 of the present embodiment, use during the cooling period will be described as an example.

[0082] In the radiation heat generating device 31, the water flowing into the cold and hot water generating cooler 35 at 25°C is cooled to 18°C ​​and sent to the water supply pipe 33. After that, the cold water distributed to the cold and hot water radiant pipe 32 exchanges heat with the air in the air-conditioned space 1 (the induced air Q1 blown out from the air supply device 11), and generates heat radiation between the wall surface constituting the air-conditioned space 1, the furniture arranged inside, the human body and other radiators, and is gradually heated. The water that becomes 25°C when it is recovered from the cold and hot water radiant pipe 32 to the drain pipe 34 is sent to the cold and hot water generating cooler 35 again and cooled to 18°C, and this cycle is repeated. In addition, the temperature transition shown here is just an example, and it is not limited to this when used in the heating period, for example. In addition, when the cold and hot water passing through the water supply pipe 33 is prone to change depending on the external environment, there is concern about insufficient capacity as a heat source or uneven temperatures of the cold and hot water between the cold and hot water radiant tubes 32a, 32b, 32c, and 32d. However, in such a case, it is preferred to implement countermeasures such as using a material with high thermal insulation properties for the water supply pipe 33.

[0083] Next, refer to Fig. 6A and Figure 6B , the arrangement relationship between the blowing nozzle 13 in the air supply device 11 and the cold and hot water radiant tube 32 in the radiant heat generating device 31 will be described. Fig. 6A 1 is a perspective view showing the arrangement relationship between the blowing nozzle 13 and the cold and hot water radiant tube 32 constituting the radiant air conditioning system 100. Figure 6B It is a cross-sectional view showing the arrangement relationship between the blowing nozzle 13 and the cold and hot water radiant tube 32 constituting the radiant air conditioning system 100 .

[0084] Here, the blowing nozzles 13a, 13b, 13c, and 13d have the same structure, and the structure and arrangement relationship of the blowing nozzle 13a and the tubes 32a1, 32a2, 32a3, 32a4, 32a5, 32a6, 32a7, and 32a8 attached to the blowing nozzle 13a are the same as those of the blowing nozzle 13b and the tubes 32b1, 32b2, 32b3, 32b4, 32b5, 32b6, 32b7, and 32b8 attached to the blowing nozzle 13b. The structures and configuration relationships of the blowing nozzle 13a and the tubes 32c1, 32c2, 32c3, 32c4, 32c5, 32c6, 32c7, and 32c8 attached to the blowing nozzle 13c, and the blowing nozzle 13d and the tubes 32d1, 32d2, 32d3, 32d4, 32d5, 32d6, 32d7, and 32d8 attached to the blowing nozzle 13d are the same, so the blowing nozzle 13a is used as a representative for explanation below. In addition, in the configuration description, among the tubes 32a1, 32a2, 32a3, 32a4, 32a5, 32a6, 32a7, and 32a8, the four tube groups of tubes 32a1, 32a2, 32a3, and 32a4 and the four tube groups of tubes 32a5, 32a6, 32a7, and 32a8 are present symmetrically with respect to the blowing nozzle 13, and have the same structure and effect. Therefore, as a representative, only the four tube groups of tubes 32a1, 32a2, 32a3, and 32a4 are described.

[0085] like Fig. 6A As shown, the blowing nozzle 13a is a rectangular parallelepiped component with a hollow interior, and has a blowing slit 22a as an opening on the surface facing the ground among the six surfaces. The blowing nozzle 13a is made of a material that is easy to transfer heat, such as aluminum, and the air flowing in the hollow interior (blowing air Q0 described later) and the air passing through the gap (induced air Q1 described later) are easy to exchange heat with the cold and hot water radiation tube 32a through the side components.

[0086] like Figure 6B As shown, the blowing slit 22a is smaller than the width of the surface where the blowing slit 22a exists, and the cavity portion inside the blowing nozzle 13a is structured to gradually narrow in accordance with the width of the blowing slit 22a.

[0087] The hot and cold water radiation pipe 32a is provided in close contact with the side surface (the blowing direction of the blowing nozzle 13a) with respect to the surface provided with the blowing slit 22a. More specifically, the pipes 32a1 to 32a8 constituting the hot and cold water radiation pipe 32a each have a length greater than the length of the blowing nozzle 13a, and are formed into a structure capable of regulating the temperature from the root to the front end of the blowing nozzle 13a with respect to the length direction of the side surface of the blowing nozzle 13a.

[0088] In addition, the tubes 32a1 to 32a4 are provided on one side surface ( Fig. 6A and Figure 6B The pipes 32a1, 32a3, 32a2, and 32a4 are arranged at a certain distance from the lower side (the side of the blowing slit 22). The water flowing in from the pipes 32a1 and 32a3 circulates through the pipes 32a2 and 32a4 while performing heat exchange. Similarly, the pipes 32a5 to 32a8 are arranged on the other side (the side of the blowing slit 22) of the blowing nozzle 13a. Fig. 6A and Figure 6B The pipes 32a5, 32a7, 32a6, and 32a8 are arranged at a certain distance from the lower side (the side of the blow-out slit 22). The water flowing in from the pipes 32a5 and 32a7 is circulated through the pipes 32a6 and 32a8 while performing heat exchange.

[0089] Thus, the hot and cold water radiant tube 32a can transfer heat to the blowing nozzle 13a in close contact, in addition to the air (induced air Q1 described later) passing through the gap between the blowing nozzle 13a and the blowing nozzle 13b.

[0090] In this case, the entire area of ​​the heat-conducting blowing nozzle 13a is effectively utilized to radiate heat to the human body and the like disposed in the air-conditioned space 1, and the thermal comfort felt by the people living in the air-conditioned space 1 can be further improved. In addition, this effect is based on the principle that the amount of heat transfer between two objects caused by thermal radiation is proportional to the cross-sectional area directly facing the two objects and the distance between the two objects.

[0091] Figure 7 1 is a structural diagram showing the arrangement relationship between the blowing nozzle 13 of the air supply device 11 and the cold and hot water radiant tube 32 of the radiant heat generating device 31 constituting the radiant air conditioning system 100 .

[0092] like Figure 7As shown, the blowing nozzles 13 (blowing nozzles 13a, 13b, 13c, 13d) are arranged in such a manner as to be offset from the ceiling surface in the air-conditioned space 1 so as to form an induction space 2 between the ceiling surface and the blowing nozzles 13. The blowing nozzles 13a, 13b, 13c, 13d have blowing slits 22a, 22b, 22c, 22d, respectively, on the surface facing the ground. The blowing nozzles 13a, 13b, 13c, 13d are arranged offset at the same distance from the top surface, and the blowing slits 22a, 22b, 22c, 22d exist on the same surface. In addition, the blowing nozzles 13a, 13b, 13c, 13d are arranged side by side at equal intervals, and accordingly, the blowing slits 22a, 22b, 22c, 22d are also arranged side by side at equal intervals. The arrangement interval is, for example, arranged such that the interval between the center lines of the blowing nozzles 13 (the interval between the blowing slits 22) is 200 mm, and the gap between the blowing nozzles 13 (a part of the induction space 2) is 160 mm. In addition, the blowing slits 22 are respectively arranged along the longitudinal direction of the blowing nozzles 13. The position of the blowing slit 22 is set on the line that divides the surface of the blowing nozzle 13 into two equal parts in the parallel direction of the blowing nozzles 13 (the direction perpendicular to the longitudinal direction).

[0093] And, if Figure 7 As shown, in the radiant air conditioning system 100, the cold and hot water radiant tubes 32 are arranged on the side surfaces of the blowing nozzles 13 adjacent to each other.

[0094] Next, refer to Figure 8 , the flow of the blown air Q0 from the blown nozzle 13 and the flow of the induced air Q1 generated near the blown nozzle 13 and the hot and cold water radiant tube 32 induced thereby will be described. Figure 8 It is a cross-sectional view showing the flow directions of the blown air Q0 from the blower nozzle 13 of the air blowing device 11 and the induced air Q1 generated near the cold and hot water radiant tubes 32 .

[0095] like Figure 8As shown, the air delivered to the blowing nozzles 13a, 13b, 13c, and 13d is discharged from the blowing slits 22a, 22b, 22c, and 22d to the air-conditioned space 1 as the blowing air Q0. Here, the blowing nozzles 13a, 13b, 13c, and 13d release the same amount of air from the blowing slits 22a, 22b, 22c, and 22d as described above, so that the blowing air Q0 has a wind speed distribution with no distribution deviation in the parallel direction of the blowing nozzles 13 and a peak value at each interval of the blowing slits 22. The blowing air Q0 has a property of relatively large wind speed relative to the wind volume by effectively utilizing the slit-shaped blowing outlet, so that a highly straight airflow is generated in the blowing direction. In addition, due to the blowing air Q0, a pressure difference is generated between the periphery of the blowing nozzle 13 and the induction space 2, and the induction air Q1 that flows into the induction space 2 between the blowing nozzle 13 and the ceiling surface is generated. Here, since the induced air Q1 is air introduced into the induced space 2 having a very large cross-sectional area relative to the cross-sectional area of ​​the blow-out slit 22, it has a property that the wind speed is very small relative to the wind volume, and the relationship of the wind volume is generally such that the wind volume of the blow-out air Q0 < the wind volume of the induced air Q1. That is, if the capacity of the hot and cold water radiant tube 32 is constant, heat transfer to the induced air Q1 can exchange more heat in a shorter time than heat transfer to the blow-out air Q0.

[0096] The induced air Q1 is induced in the blowing direction of the blown air Q0 of the blown nozzle 13 , and passes near the cold and hot water radiant tubes 32 (cold and hot water radiant tubes 32a , 32b , 32c , 32d ) arranged on the side of the blown nozzle 13 .

[0097] In addition, when the induced air Q1 passes through the vicinity of the hot and cold water radiation tube 32 and becomes the induced air Q2, it is heated or cooled based on convection heat transfer. For example, when the temperature T1 of the induced air Q1 is 28°C (the same temperature as the temperature of the air-conditioned space 1) and the surface temperature Tp of the hot and cold water radiation tube 32 is 18°C, the temperature T2 of the induced air Q2 is cooled to a value between the temperature T1 and the temperature Tp (for example, 25°C). And, the cooled induced air Q2 is integrated with the blown air Q0 from the blowout nozzle 13, and is thus blown to the air-conditioned space 1 as a planar uniform flow with a slight wind speed.

[0098] In this way, in the radiation heat generating device 31, by effectively utilizing the blown air Q0 and the induced air Q1 based on the air supply device 11, the air in the air-conditioned space 1 can be conditioned to improve thermal comfort. In addition, generally, the heat transfer coefficient on the surface of the cold and hot water radiation tube 32 is greater when the wind speed of the airflow flowing on the surface is greater, so by generating the induced air Q1, a higher air conditioning capacity can be obtained compared to the case where no airflow is generated. In addition, since a planar uniform airflow can be generated, the temperature unevenness of the air-conditioned space 1 can be suppressed, a comfortable environment can be provided, and a comfortable cool feeling can be provided with uneven wind without wind. Therefore, in this embodiment, the thermal comfort of the radiation air conditioning system 100 can be further improved.

[0099] As described above, according to the radiant air conditioning system 100 of the first embodiment, the following effects can be obtained.

[0100] (1) The radiation air conditioning system 100 includes: a plurality of blowing nozzles 13 having slit-shaped blowing outlets (blowing slits 22); a fan 15 that blows air toward the blowing nozzles 13; and a radiation heat generating device 31 that generates heat radiation. The plurality of blowing nozzles 13 are arranged side by side with gaps so that the blowing outlets (blowing slits 22) are located on the same surface. The radiation heat generating devices 31 are respectively arranged at positions that are lateral to the blowing direction of the blowing nozzles 13. The induced air Q1 induced by the blowing air Q0 blown from the blowing nozzles 13 passes through the gaps.

[0101] According to such a structure, the air (induced air Q1) induced to the gap of the blowing nozzle 13 exchanges heat with the surface of the cold and hot water radiant tube 32 located on the side of the blowing nozzle 13 to become the induced air Q2, and then the induced air Q2 is integrated with the blowing air Q0 from the blowing nozzle 13, thereby sending air to the air-conditioned space 1 as a planar uniform flow with a slight wind speed. In addition, the induced air Q2 usually has a larger air volume than the blowing air Q0, so the cold and hot water radiant tube 32 has a structure that performs heat exchange with the induced air Q2 more intensively than the blowing air Q0, and the heat transfer amount can be increased. In addition, by installing the cold and hot water radiant tube 32 on the side of the blowing nozzle 13, the temperature is transferred to the blowing nozzle 13 itself by heat conduction, and the heat exchange based on the induced air Q1 can be improved, and the radiation area can be increased. Therefore, air conditioning can be achieved in which the temperature deviation or air flow is suppressed in the entire air-conditioned space 1, and the air-conditioned space 1 without uneven body temperature can be achieved. That is, it is possible to realize the radiation air conditioning system 100 which can improve the thermal comfort of the space.

[0102] (2) In the radiation air conditioning system 100, the radiation heat generating device 31 is composed of a plurality of cold and hot water radiation tubes 32. Thus, the radiation heat generating device 31 can be divided to increase the surface area relative to the refrigerant used. Therefore, the heat conduction from the cold and hot water radiation tubes 32 to the air or the blowing nozzle 13 is promoted, and the effect of suppressing the unevenness of the sensible temperature in the air-conditioned space 1 can be further improved.

[0103] (3) The radiant air conditioning system 100 is configured to include: an outdoor unit 42 having a heat pump 44; and a cold and hot water generating cooler 35, which delivers water whose temperature is adjusted by the refrigerant that has been temperature-controlled by the outdoor unit 42, and delivers the water whose temperature is adjusted by the cold and hot water generating cooler 35 to the cold and hot water radiant pipe 32. As a result, it is not necessary to use a refrigerant such as Freon or a Freon substitute for the cold and hot water radiant pipe 32 in the room. Therefore, compared with the case of using Freon or a Freon substitute, the construction can be simplified, and the disposal can also be simplified.

[0104] (Implementation Method 2)

[0105] Next, refer to Fig.9A , Fig. 9B and Fig. 9C Next, the blowing nozzle 113 and the cold and hot water radiant tube 32 constituting the radiant air conditioning system 100a according to Embodiment 2 of the present invention will be described. Fig.9A 1 is a perspective view showing the arrangement relationship between the blowing nozzle 113 and the hot and cold water radiant tube 132 constituting the radiant air conditioning system 100a according to the second embodiment of the present invention. Fig. 9B 1 is a cross-sectional view showing the arrangement relationship between the blowing nozzle 113 and the hot and cold water radiant tube 132 constituting the radiant air conditioning system 100a. Fig. 9C It is a side view showing the arrangement relationship between the blowing nozzle 113 and the cold and hot water radiant tube 132 constituting the radiant air conditioning system 100a.

[0106] The radiant air conditioning system 100a of Embodiment 2 is different from Embodiment 1 in that the hot and cold water radiant pipe 132 is embedded in the side member of the blowing nozzle 113. The structure of the radiant air conditioning system 100a is the same as that of the radiant air conditioning system 100 of Embodiment 1. Hereinafter, the contents described in Embodiment 1 will be appropriately omitted, and the differences from Embodiment 1 will be mainly described.

[0107] The radiant air conditioning system 100a of embodiment 2 comprises: blowing nozzles 113a, 113b, 113c, and 113d collectively referred to as blowing nozzles 113 in the air supply device 11; and hot and cold water radiant tubes 132a, 132b, 132c, and 132d collectively referred to as hot and cold water radiant tubes 132 in the radiant heat generating device 31, but since they have the same structure, the following description focuses on the blowing nozzles 113a and the hot and cold water radiant tubes 132a.

[0108] In the radiation air conditioning system 100a of the second embodiment, as Fig.9A and Fig. 9B As shown, the hot and cold water radiation pipe 132a is built into the inside of the blowing nozzle 113a as an integral body. That is, the hot and cold water radiation pipe 132a is entirely embedded in the side member of the blowing nozzle 113a, and is a structure that is not exposed to the outside (outer surface) of the blowing nozzle 113a. In addition, such a structure is manufactured by extrusion molding of aluminum, for example, so that a gap is formed inside the side member of the blowing nozzle 113, thereby being able to form the hot and cold water radiation pipe 132a.

[0109] More specifically, the tubes 132a1 to 132a8 constituting the hot and cold water radiant tube 132a are respectively embedded in the side member of the blowing nozzle 113a, and have the same length as the blowing nozzle 113a. Fig.9A and Fig. 9B The pipes 132a1, 132a3, 132a2, and 132a4 are arranged at a certain distance from the bottom side (the side of the blowing slit 122a). The water flowing in from the pipes 132a1 and 132a3 circulates through the pipes 132a2 and 132a4 while performing heat exchange. Similarly, the pipes 132a5 to 132a8 are arranged on the other side (the side of the blowing slit 122a) of the blowing nozzle 113a. Fig.9A and Fig. 9B The pipes 132a5, 132a7, 132a6, and 132a8 are arranged at a certain distance from the lower side (the side of the blow-out slit 122a). The water flowing in from the pipes 132a5 and 132a7 is circulated through the pipes 132a6 and 132a8 while performing heat exchange.

[0110] The ends of each pipe (pipe 132a1 to 132a8) are processed into a screw hole shape, and the connection with the water supply pipe 33 and the drainage pipe 34 is a structure that can be connected through a screw-in connection port. In addition, on the side opposite to the connection port of the water supply pipe 33 and the drainage pipe 34, a flow path is formed to connect the return pipes 45a1 and 45a2 through a screw-in connection port. Specifically, Fig. 9CAs shown, the water supply pipe 33 is connected to one end of the pipes 132a1 and 132a3 in the blowing nozzle 113a. The other ends of the pipes 132a1 and 132a3 are connected to one end of the pipes 132a2 and 132a4 via the return pipes 45a1 and 45a2, respectively, and the other ends of the pipes 132a3 and 132a4 are connected to the drainage pipe 34.

[0111] In the case of such a structure, the heat conduction from the hot and cold water radiation pipe 132a to the blowing nozzle 113a itself can be further promoted, so that the temperature of the blowing nozzle 113a itself changes. That is, the entire area of ​​the blowing nozzle 113 to which heat is conducted can be further fully utilized to radiate heat to the human body and the like disposed in the air-conditioned space 1, thereby further improving the thermal comfort felt by the people living in the air-conditioned space 1.

[0112] As described above, according to the radiation air conditioning system 100a of the second embodiment, the following effects can be obtained.

[0113] (4) In the radiation air conditioning system 100a, a plurality of cold and hot water radiation tubes 132 are built into the side member constituting the blowing nozzle 113. Thus, when manufacturing the blowing nozzle 113, it is not necessary to separately manufacture and install the cold and hot water radiation tubes 132. Only by manufacturing the side member, the blowing nozzle 113 with the cold and hot water radiation tubes 132 built in can be manufactured. Therefore, the blowing nozzle 113 can be manufactured simply at a lower cost. In addition, by building in the cold and hot water radiation tubes 132, the heat conduction to the blowing nozzle 113 is further promoted, and heat radiation is performed with the human body and the like disposed in the air-conditioned space 1, which can further improve the thermal comfort felt by the people living in the air-conditioned space 1.

[0114] (Implementation 3)

[0115] Next, refer to Fig. 10A , Fig. 10B , Fig.11A and Fig. 11B , a radiation air conditioning system 100b according to a third embodiment is described. Fig. 10A 2 is a perspective view showing the arrangement relationship between the blowing nozzle 213 and the hot and cold water radiant tube 232 constituting the radiant air conditioning system 100b according to the third embodiment of the present invention. Fig. 10B 2 is a cross-sectional view showing the arrangement relationship between the blowing nozzle 213 and the hot and cold water radiant tube 232 constituting the radiant air conditioning system 100b. Fig.11A 2 is a cross-sectional view showing a tube installation portion 238 before the hot and cold water radiant tube 232 is installed in the blowing nozzle 213 constituting the radiant air conditioning system 100b. Fig. 11B It is a cross-sectional view showing the installation state of the pipe installation portion 238 of the blowing nozzle 213 and the hot and cold water radiant pipe 232 constituting the radiant air conditioning system 100b.

[0116] The radiation air conditioning system 100b of the third embodiment is different from the first embodiment in that the blowing nozzle 213 has a pipe installation portion 238, and the cold and hot water radiation pipe 232 can be removed from the side member of the blowing nozzle 213. The structure of the radiation air conditioning system 100b is the same as that of the radiation air conditioning system 100 of the first embodiment. Hereinafter, the contents described in the first embodiment will be appropriately omitted, and the differences from the first embodiment will be mainly described.

[0117] The radiation air conditioning system 100b of embodiment 3 includes: blowing nozzles 213a, 213b, 213c, and 213d collectively referred to as blowing nozzles 213 in the air supply device 11; and hot and cold water radiation tubes 232a, 232b, 232c, and 232d collectively referred to as hot and cold water radiation tubes 232 in the radiation heat generating device 31, but since they have the same structure, the following description focuses on the blowing nozzles 213a and the hot and cold water radiation tubes 232a.

[0118] In the radiation air conditioning system 100b of the third embodiment, Fig. 10A and Fig. 10B As shown, the hot and cold water radiant pipe 232a is configured such that a portion is buried in the side member of the blowing nozzle 213a, and a portion (eg, approximately one-half) is exposed on the side of the blowing nozzle 213a.

[0119] In more detail, Fig.11A As shown, in the radiation air conditioning system 100b, the blowing nozzle 213a has a pipe setting portion (also referred to as a pipe installation portion) 238a on its side. The pipe setting portion 238a is provided on the side of the blowing nozzle 213a to match the position where the hot and cold water radiation pipe 232a is installed, and is a concave shape in which a part of a circle is opened in a range of more than one quarter and less than one half of the whole.

[0120] The inner diameter of the circle constituting the depression is slightly larger than the outer diameter of the hot and cold water radiant tube 232a, so that the hot and cold water radiant tube 232a is embedded in the depression. In addition, the opening of the depression makes the opening range smaller than half of the entire circle, thereby reducing the outer diameter of the hot and cold water radiant tube 232a. Therefore, during installation, the hot and cold water radiant tube 232a can be embedded in the depression by flattening the hot and cold water radiant tube 232a within a reversible range or by expanding the opening of the tube setting portion 238a (see Fig. 11B ). As a specific example, when the diameter of the hot and cold water radiant tube 232a is set to 4 mm, the maximum diameter of the depression is 4.2 mm, and the opening of the tube setting portion 238a is 3.8 mm. Similarly, the hot and cold water radiant tube 232a in the state of being embedded in the tube setting portion 238a can be removed in the reverse order of the embedding.

[0121] The tubes 232a1 to 232a8 constituting the hot and cold water radiant tube 232a are embedded in the tube installation parts 238a1 to 238a8 collectively referred to as the tube installation part 238a, so that each part is embedded in the surface of the side member of the blowing nozzle 213a. Fig.11A The left side of the nozzle 213a is partially buried in the surface of the side member, and the pipes 232a1, 232a3, 232a2, and 232a4 are arranged at a certain distance from the lower side (the blowing slit 222a side). The water flowing in from the pipes 232a1 and 232a3 circulates through the pipes 232a2 and 232a4 while performing heat exchange. Similarly, the pipes 232a5 to 232a8 are arranged on the other side (the blowing slit 222a side) of the blowing nozzle 213a. Fig.11A The right side of the side member is partially buried in the surface of the side member, and the pipes 232a5, 232a7, 232a6, and 232a8 are arranged at a certain distance from the lower side (the blowing slit 222a side). The water flowing in from the pipes 232a5 and 232a7 is circulated through the pipes 232a6 and 232a8 while performing heat exchange.

[0122] By forming such a structure, when the hot and cold water radiant tube 232 is installed in the tube installation part 238, more than half of the outer peripheral surface of the hot and cold water radiant tube 232 is in close contact with the tube installation part 238, and is hidden from the outside, and the other part is exposed to the outside. In addition, since the hot and cold water radiant tube 232 can be freely installed and removed, the number of hot and cold water radiant tubes 232 can be changed according to the room to be constructed, and maintenance after construction can be easily performed.

[0123] As described above, according to the radiation air conditioning system 100b of the third embodiment, the following effects can be achieved.

[0124] (5) In the radiant air conditioning system 100, the blowing nozzle 213 has a tube installation portion 238 on which the hot and cold water radiant tube 232 can be installed relative to the surface of the side member constituting the blowing nozzle 213, and the installation surface of the tube installation portion 238 and the hot and cold water radiant tube 232 is in close contact with more than 1 / 2 of the outer peripheral surface of the hot and cold water radiant tube 232. Thus, even after the blowing nozzle 213 is installed in the house, the hot and cold water radiant tube 232 can be freely installed and removed. Therefore, after the blowing nozzle 213 is installed, the number of tubes can be adjusted to match the house or maintenance after the installation can be easily performed.

[0125] (Implementation 4)

[0126] Next, refer to Fig. 12A , Fig. 12B , Fig.13A and Fig. 13B , a radiation air conditioning system 100c according to a fourth embodiment is described. Fig. 12A 1 is a perspective view showing the arrangement relationship between the blowing nozzle 313 and the cold and hot water radiant tube 332 constituting the radiant air conditioning system 100c according to the fourth embodiment of the present invention. Fig. 12B It is a cross-sectional view showing the arrangement relationship between the blowing nozzle 313 and the cold and hot water radiant tube 332 constituting the radiant air conditioning system 100c. Fig.13A 1 is a cross-sectional view showing the arrangement relationship between the air supply area (air supply passage action surface 339) and the non-air supply area (air supply passage non-action surface 340) in the blowing nozzle 313 constituting the radiation air conditioning system 100c. Fig. 13B It is a cross-sectional view showing the state of the hot and cold water radiant tube 332 and the thermal conductive grease 341 provided in the blowing nozzle 313 constituting the radiant air conditioning system 100c.

[0127] The radiation air conditioning system 100c of the fourth embodiment is different from the first embodiment in that the hot and cold water radiation pipe 332 is selectively arranged on the air supply air path non-action surface 340 in the blowing nozzle 313. The structure of the radiation air conditioning system 100c is the same as the radiation air conditioning system 100 of the first embodiment. Hereinafter, the contents described in the first embodiment will be appropriately omitted, and the differences from the first embodiment will be mainly described.

[0128] The radiation air conditioning system 100c of the fourth embodiment includes: blowing nozzles 313a, 313b, 313c, 313d collectively referred to as the blowing nozzle 313 in the air supply device 11; cold and hot water radiant tubes 332a, 332b, 332c, 332d collectively referred to as the cold and hot water radiant tubes 332 in the radiant heat generating device 31; air supply air path action surfaces 339a, 339b, 339c, 339d collectively referred to as the air supply air path action surface 339; and The air supply path non-active surfaces 340a, 340b, 340c, and 340d of the air supply path non-active surface 340; and the thermally conductive grease 341a, 341b, 341c, and 341d collectively referred to as the thermally conductive grease 341, but since they are the same structure, the following description focuses on the blowing nozzle 313a, the hot and cold water radiant tube 332a, the air supply path active surface 339a, the air supply path non-active surface 340a and the thermally conductive grease 341a.

[0129] In the radiation air conditioning system 100c of the fourth embodiment, as Fig.13A As shown, the blowing nozzle 313a has an air supply passage action surface 339a and an air supply passage non-action surface 340a inside.

[0130] The air supply passage action surface 339a is a component of the inclined surface portion of the air supply passage side in the structure formed in a manner that the cavity portion inside the blowing nozzle 313a gradually narrows to match the width of the blowing slit 322a. The air supply passage action surface 339 is a surface that exists in the inner direction of the blowing nozzle 313a and is almost not exposed relative to the air-conditioned space 1.

[0131] The airflow path non-action surface 340a is a member of the L-shaped portion of the structure corresponding to the airflow path action surface 339 in the vicinity of the blowing slit 322a. The airflow path non-action surface 340a is a surface located outside the blowing nozzle 313a, and one surface thereof is exposed to the conditioned space 1.

[0132] The air supply duct action surface 339a and the air supply duct non-action surface 340a are surfaces that are not in close contact with each other except for the end portions.

[0133] That is, when the temperature of the air supply duct action surface 339a changes, a heat conduction effect is produced on the blown air Q0, but it is difficult to produce heat radiation to the people or objects in the air-conditioned space 1. On the other hand, when the temperature of the air supply duct non-action surface 340a changes, in addition to the heat conduction effect to the induced air Q1, heat radiation to the people or objects in the air-conditioned space 1 is also produced.

[0134] In the radiant air conditioning system 100c, if Fig. 12A and Fig. 12B As shown, the hot and cold water radiation pipe 332a is arranged on the surface of the air supply airway non-action surface 340a inside the blowing nozzle 313a. That is, the hot and cold water radiation pipe 332a is arranged on the side of the blowing nozzle 313a, but is configured not to be exposed in either the blowing airway or the induction airway.

[0135] More specifically, the tubes 332a1 to 332a8 constituting the hot and cold water radiant tube 332a are respectively arranged on the surface of the air supply air passage non-action surface 340a inside the blowing nozzle 313a, and have a length longer than the length of the blowing nozzle 313a. Furthermore, the tubes 332a1 to 332a4 are arranged on one side of the blowing nozzle 313a ( Fig. 12A and Fig. 12B The surface of the air supply air path non-action surface 340a in the left side of the blowing nozzle 313a is arranged at a certain distance in the order of pipes 332a1, 332a3, 332a2, and 332a4 from the lower side (blowing slit 322a side). And the water flowing in from pipes 332a1 and 332a3 circulates through pipes 332a2 and 332a4 while performing heat exchange. Similarly, pipes 332a5 to 332a8 are arranged on the other side ( Fig. 12A and Fig. 12BThe surface of the air supply air path non-action surface 340a in the right side of the ventilator is arranged at a certain distance from the lower side (the blowing slit 322a side) in the order of pipes 332a5, 332a7, 332a6, and 332a8. The water flowing in from the pipes 332a5 and 332a7 circulates through the pipes 332a6 and 332a8 while performing heat exchange.

[0136] In addition, the hot and cold water radiation pipe 332a is closely connected to the air supply air path non-action surface 340a. That is, in this case, the hot and cold water radiation pipe 332a is relatively close to the nozzle air A3a (refer to Figure 4 ) is difficult to produce heat conduction effect, and the heat conduction effect on the air passing through the side of the blowing nozzle 313a as the induction airflow, namely the induction air Q1, becomes greater.

[0137] Generally, the relationship of air volume is that the air volume of the blown air Q0 is less than the air volume of the induced air Q1. Therefore, such a relationship allows the heat from the hot and cold water radiant tubes 332a to be concentratedly transferred to the induced air Q1 having a larger air volume.

[0138] And, if Fig. 13B As shown, the periphery of the hot and cold water radiation pipe 332a and the air supply air path non-action surface 340a is filled with thermal conductive grease 341a. In other words, it can be said that the hot and cold water radiation pipe 332a and the blowing nozzle 313a are in close contact via the thermal conductive grease 341a. Thus, the heat conduction area between the hot and cold water radiation pipe 332a and the air supply air path non-action surface 340a can be increased via the thermal conductive grease 341a. In this case, the area of ​​the air supply air path non-action surface 340a is effectively utilized to radiate heat with the human body and the like disposed in the air-conditioned space 1, and the thermal comfort felt by the people living in the air-conditioned space 1 can be further improved.

[0139] As described above, according to the radiation air conditioning system 100c of the fourth embodiment, the following effects can be obtained.

[0140] (6) The radiation air conditioning system 100c is configured such that the blowing nozzle 313 has an air supply path action surface 339 adjacent to the internal air path of the blowing nozzle 313 in the side member constituting the blowing nozzle 313, and an air supply path non-action surface 340 isolated from the internal air path, and the hot and cold water radiation pipe 332 is provided on the air supply path non-action surface 340. As a result, the induced air Q2 generally has a larger air volume than the blown air Q0, and thus the heat exchange with the induced air Q2 is more concentrated than that with the blown air Q0, and the heat transfer can be increased. Therefore, the heat transfer from the pipe to the air or the blowing nozzle 313 is promoted, and the effect of suppressing the unevenness of the perceived temperature in the air-conditioned space 1 can be further improved.

[0141] (7) The radiant air conditioning system 100c is configured such that the gap between the blowing nozzle 313 and the hot and cold water radiant tube 332 is filled with thermally conductive grease 341, and the hot and cold water radiant tube 332 and the blowing nozzle 313 are in close contact via the thermally conductive grease 341. Thus, the heat transfer area between the hot and cold water radiant tube 332 and the blowing nozzle 313 can be increased, and heat transfer to the induced air Q1 can be promoted. Therefore, the effect of suppressing unevenness of the perceived temperature in the air-conditioned space 1 can be further improved.

[0142] The present invention has been described above based on the embodiments. It should be understood by those skilled in the art that the embodiments are illustrative only and that various modifications may be made to the combination of each component or each process, and such modifications are also within the scope of the present invention.

[0143] In the radiation air conditioning system 100 of the present embodiment 1, the cold and hot water radiation tubes 32 are arranged on the side of the blowing slit 22 in the same plane as the side, but it is not limited to this. As long as the cold and hot water radiation tubes 32 are not blocked by the blowing nozzle 13 but exposed to the air-conditioned space 1, it is sufficient. Therefore, for example, the cold and hot water radiation tubes 32 can be arranged on the downstream side of the flow of the blown air Q0 than the surface formed by the blowing slit 22, and all the cold and hot water radiation tubes 32 are arranged on the same plane. Alternatively, the cold and hot water radiation tubes 32 can be arranged in the space formed in the gap between the adjacent blowing nozzles 13. In addition, in such a case, all the cold and hot water radiation tubes 32 can be arranged on the same plane or on different planes. Even so, there is no obstacle between the cold and hot water radiation tubes 32 and the air-conditioned space 1, so heat radiation can be promoted. Therefore, the thermal comfort based on radiant heat can be further improved.

[0144] In addition, in the radiation air conditioning system 100 of the present embodiment 1, the tube group arranged between the blowing nozzles 13 is composed of four tubes, but it is not limited to this. As long as at least one tube is connected to the water supply pipe 33 and the drainage pipe 34 and the number of connected tubes is the same, for example, the number of tubes constituting the tube group may be two, six, eight, etc.

[0145] In addition, in the radiation air conditioning system 100 of the present embodiment 1, the air supply device 11 is offset relative to the ceiling surface constituting the air-conditioned space 1, and the blown air Q0 from the blowout nozzle 13 is blown from the ceiling surface toward the ground, but the present invention is not limited thereto. For example, the air supply device 11 may be offset relative to the side wall surface of the air-conditioned space 1, and the blown air Q0 from the blowout nozzle 13 may be blown toward the side wall surface on the opposite side. Even in this case, the induced air Q1 can be sucked in a large range from the induced space 2 between the side wall surface and the blowout nozzle 13, and stable air supply can be achieved toward the side wall surface on the opposite side.

[0146] In the radiation air conditioning system 100 of the first embodiment, the raw material of the blowing nozzle is made of a material that is easy to conduct heat, such as aluminum, but is not limited thereto. For example, by using a material that is difficult to conduct heat, such as resin, the heat conduction to the air is suppressed, and the heat radiation from the pipe itself is increased, thereby adjusting the balance of the air conditioning.

[0147] Industrial Applicability

[0148] The radiant air-conditioning system of the present invention is useful as a system capable of improving thermal comfort in an air-conditioned space.

[0149] Description of Reference Numerals

[0150] 100 Radiant air conditioning system

[0151] 100a Radiant air conditioning system

[0152] 100b Radiant air conditioning system

[0153] 100c Radiant Air Conditioning System

[0154] 1 Air-conditioned space

[0155] 2 Induced Space

[0156] 11 Air supply device

[0157] 12, 12a, 12b air supply unit

[0158] 13, 13a, 13b, 13c, 13d Blowing nozzle

[0159] 113, 113a, 113b, 113c, 113d Blowing nozzles

[0160] 213, 213a, 213b, 213c, 213d Blowing nozzles

[0161] 313, 313a, 313b, 313c, 313d Blowing nozzles

[0162] 14 fan box

[0163] 15, 15a, 15b fans

[0164] 16a, 16b impeller

[0165] 17a, 17b motor

[0166] 18, 18a, 18b air supply chamber

[0167] 21 suction port

[0168] 22, 22a, 22b, 22c, 22d blow out gaps

[0169] 122, 122a, 122b, 122c, 122d blow out gaps

[0170] 222, 222a, 222b, 222c, 222d blow out gaps

[0171] 322, 322a, 322b, 322c, 322d blow out gaps

[0172] 23, 23a, 23b Fan outlet

[0173] 31 Radiant heat generating device

[0174] 32, 32a, 32b, 32c, 32d hot and cold water radiant tubes

[0175] 132, 132a, 132b, 132c, 132d hot and cold water radiant tubes

[0176] 232, 232a, 232b, 232c, 232d hot and cold water radiant tubes

[0177] 332, 332a, 332b, 332c, 332d hot and cold water radiant tubes

[0178] 32a1, 32a2, 32a3, 32a4, 32a5, 32a6, 32a7, 32a8 tube

[0179] 132a1, 132a2, 132a3, 132a4, 132a5, 132a6, 132a7, 132a8 pipe 232a1, 232a2, 232a3, 232a4, 232a5, 232a6, 232a7, 232a8 pipe 332a1, 332a2, 332a3, 332a4, 332a5, 332a6, 332a7, 332a8 pipe 32b1, 32b2, 32b3, 32b4, 32b5, 32b6, 32b7, 32b8 pipe

[0180] 32c1, 32c2, 32c3, 32c4, 32c5, 32c6, 32c7, 32c8 tube

[0181] 32d1, 32d2, 32d3, 32d4, 32d5, 32d6, 32d7, 32d8 tube

[0182] 33 Water supply pipe

[0183] 34 Drain pipe

[0184] 35. Cold and hot water generation cooler

[0185] 35a Refrigerant coil

[0186] 36 Water pump

[0187] 238, 238a, 238a1, 238a2, 238a3, 238a4, 238a5, 238a6, 238a7, 238a8 pipe installation part

[0188] 339, 339a, 339b, 339c, 339d air supply duct action surface

[0189] 340, 340a, 340b, 340c, 340d non-functional surface of air supply path

[0190] 341, 341a, 341b, 341c, 341d thermally conductive grease

[0191] 42 Outdoor unit

[0192] 42a Compressor

[0193] 42b Expander

[0194] 42c Outdoor heat exchanger

[0195] 42d Air supply fan

[0196] 42e Four-way valve

[0197] 43 Refrigerant circuit

[0198] 44 Heat Pump

[0199] 45a1, 45a2 return piping

[0200] A0 Inhaled air

[0201] A1a, A1b Air

[0202] A2a, A2b Air

[0203] A3a, A3b, A3c, A3d nozzle air

[0204] Q0 Blow out air

[0205] Q1 Induction air

[0206] Q2 induces air.

Claims

1. A radiant air conditioning system, characterized in that: include: A plurality of blowing nozzles having slit-shaped blowing outlets; a fan for blowing air toward the blowing nozzle; and a radiant heat generating portion that generates thermal radiation, The plurality of blowing nozzles are arranged side by side with gaps therebetween so that the blowing outlets are located on the same surface. The radiant heat generating parts are respectively provided at positions which are lateral to the blowing direction of the blowing nozzles. Induction air induced by the blown air blown from the blow nozzle passes through the gap.

2. The radiant air conditioning system according to claim 1, characterized in that: The radiant heat generating portion is composed of a plurality of tubes.

3. The radiant air conditioning system according to claim 2, characterized in that: The radiation air conditioning system includes: an outdoor unit having a heat pump; and a cold and hot water generating cooler, which delivers water whose temperature is adjusted by the refrigerant whose temperature is adjusted by the outdoor unit. The water whose temperature is adjusted by the cold and hot water generating and cooling device is sent to the pipe.

4. The radiant air conditioning system according to claim 3, characterized in that: The tube is built into a side member constituting the blowing nozzle.

5. The radiant air conditioning system according to claim 3, characterized in that: The blowing nozzle has a pipe installation portion that enables the pipe to be mounted on a surface of a side member constituting the blowing nozzle. Of the tube installation portion and the installation surface of the tube, the tube installation portion is in close contact with more than 1 / 2 of the outer peripheral surface of the tube.

6. The radiant air conditioning system according to claim 3, characterized in that: The blowing nozzle has an air supply passage action surface adjacent to the internal air passage of the blowing nozzle and an air supply passage non-action surface isolated from the internal air passage inside a side member constituting the blowing nozzle. The tube is arranged on the non-active surface of the air supply passage.

7. The radiant air conditioning system of claim 6, wherein: The gap between the blowing nozzle and the pipe is filled with thermally conductive grease. The tube and the blowing nozzle are in close contact with each other via the grease.

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