Radiation panel for air conditioning

Abstract

To provide a radiation panel for air conditioning which can be assembled by connecting a plurality of basic panels with a simple configuration, the radiation panel having an excellent workability such as piping and air vent, flexibility that can address every load, and high performance by devising the arrangement of vertical pipes while preventing a deterioration in heat medium.SOLUTION: The radiation panel for air conditioning has: a plurality of vertical pipes in which a heat medium circulates; an upper header in which an upper bonding part connected to one end of the vertical pipe, an upper flow rate adjustment hole communicating with the upper bonding part, and an upper external connection part for circulating the heat medium with the external side are formed; and a lower header in which a lower bonding part connected to the other end of the vertical pipe, a lower flow rate adjustment hole communicating with the lower bonding part, and a lower external connection part for circulating the heat medium with the external side are formed. The heat medium introduced from the upper or lower external connection part is circulated simultaneously in the vertical pipes from one to the other of the upper or lower header via the upper flow rate adjustment hole and the lower flow rate adjustment hole.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a radiation panel for air conditioning, which is installed indoors as part of a radiant air conditioning system and performs cooling and heating in a radiation manner by a circulating heat medium.

Background Art

[0002] Conventionally, as a part of a radiant air conditioning system, a radiation panel for air conditioning that performs cooling and heating in a radiation manner by a circulating heat medium includes, for example, the radiation panel for air conditioning described in Patent Document 1.

[0003] The radiation panel for air conditioning having the configuration of Patent Document 1 has a first heat dissipation panel and a second heat dissipation panel in which a plurality of vertical pipes communicate between upper and lower headers, and the upper and lower headers of both heat dissipation panels are connected and integrated respectively, and is a resin radiation panel that forms a complex flow path to control the flow of the heat medium to each pipe. The configuration of the radiation panel for air conditioning of Patent Document 1 will be described with reference to FIG. 10. In the figure, (A) is a left side view, (B) is a front view of the first heat dissipation panel, (C) is a right side view, and (D) is a front view of the second heat dissipation panel. The configuration of Patent Document 1 has a first heat dissipation panel PN1 and a second heat dissipation panel PN2 in which a plurality of vertical pipes communicate between upper and lower headers H, and the upper and lower headers of both heat dissipation panels are integrated with each other by connection pipes F, and a complex flow path is formed to control the flow of the heat medium to each pipe. To explain this flow path example, it passes through the manifold (112) from the inlet pipe (101), passes through one vertical pipe (102) of the first heat radiation panel PN1, flows into the lower header (103) of the first heat radiation panel PN1, flows into the upper header (105) of the first heat radiation panel PN1 via a plurality of vertical pipes (104), flows from this upper header (105) into the upper header (107) of the second heat radiation panel PN2 via the connecting pipe (106), passes through one vertical pipe (208) of the second heat radiation panel PN2 and flows into the lower header (109) of the second heat radiation panel PN2, flows into the upper header (107) of the second heat radiation panel PN2 through a plurality of vertical pipes (110) of the second heat radiation panel PN2, passes through the manifold (112) via the connecting pipe (111), and is configured to flow out from the outflow pipe (113).

Prior Art Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] According to the radiation panel for air conditioning of Patent Document 1, in order to improve air bleeding in the panel and uniform flow distribution to each vertical pipe, the flow path configuration is complicated, the processing is also complicated, the cost is high, and there is also a problem that there is only one vertical pipe passing portion on the inlet side and the outlet side of the heat medium, resulting in a large pressure loss. Furthermore, when manufacturing heat radiation panels with different performances, it is necessary to form the first heat radiation panel and the second heat radiation panel each having a number of vertical pipes corresponding to their respective performances, as well as headers and related members and flow paths, resulting in a more complicated production management problem. And when lining up radiation panels with different performances, it is necessary to manufacture many types of panels and prepare inventory, and for places with greater performance, it is necessary to use a plurality of panels, which is a problem. In addition, the joints between the header and each vertical pipe are resin brazed, but this increases the man-hours and there is a problem of leakage occurring during long-term use. An object of the present invention is to provide a radiation panel for air conditioning that can solve the above problems with a simple configuration.

Means for Solving the Problems

[0006] (1) In order to achieve the above object, the present invention comprises the following means for solving the problems. A first invention includes a plurality of vertical pipes, an upper joint portion connected to one end of the plurality of vertical pipes, an upper flow rate adjustment hole communicating with the upper joint portion, and an upper external connection portion for circulating a heat medium with the outside, and a lower joint portion connected to the other end of the plurality of vertical pipes, a lower flow rate adjustment hole communicating with the lower joint portion, and a lower external connection portion for circulating a heat medium with the outside. A radiation panel for air conditioning, characterized in that the heat medium introduced from the upper external connection portion or the lower external connection portion is circulated simultaneously to the plurality of vertical pipes through the upper flow rate adjustment hole and the lower flow rate adjustment hole from one side to the other side of the upper header or the lower header. It is possible to easily connect a plurality of standardized basic panels as needed with a quick-connect type connector or the like to form a radiation panel for air conditioning. In addition, the flow rate adjustment holes can simultaneously and uniformly circulate the heat medium to each vertical pipe, preventing performance degradation.

[0007] (2) A second invention is a basic panel of a radiation panel for air conditioning, characterized in that in the first invention, an inlet / outlet pipe connection portion for a heat medium and an air vent valve connection portion are provided in the upper header. This makes it easier and more reliable to vent air for the air vent valve provided in the inlet / outlet pipe, and the piping method can be selected according to the installation location, facilitating construction.

[0008] (3) A third invention is a radiation panel for air conditioning, characterized in that in either the first invention or the second invention, a plurality of vertical pipes are arranged in two rows, front and back, and the vertical pipes in the rear row are arranged between the vertical pipes in the front row. This improves the radiation performance with a simple configuration.

[0009] (4) The fourth invention is any one of the first invention, the second invention, or the third invention, wherein a plurality of vertical pipes in a row are connected to an upper header and a lower header, an aluminum panel is provided on the front side of the plurality of vertical pipes in the row, and it is an air-conditioning radiation panel that contacts at least approximately 50% of the surface area of the vertical pipes with the aluminum panel, improving performance and the panel design.

[0010] (5) The fifth invention is any one of the first invention, the second invention, the third invention, or the fourth invention, wherein an aluminum three-layer pipe is formed by using resin for the inner and outer surfaces of each vertical pipe and inserting an aluminum pipe between the two resins for three-layerization, and it is an air-conditioning radiation panel that can prevent the deterioration of the heat medium due to the permeation of oxygen in the air and the like when the vertical pipe is a resin pipe and the deformation due to heat during heating.

[0011] (6) The sixth invention is any one of the first invention, the second invention, the third invention, the fourth invention, or the fifth invention, wherein a connection portion between each vertical pipe and the upper and lower headers is a one-touch joint for an air-conditioning panel, which can be easily assembled, prevent an increase in man-hours due to connection by resin brazing or an adhesive and the leakage of the heat medium due to long-term use, enable the assembly of the radiation panel at the construction site, enable height adjustment, and improve installation adaptability.

[0012] (7) The seventh invention is any one of the first invention, the second invention, the third invention, the fourth invention, the fifth invention, or the sixth invention, wherein a connection portion between each vertical pipe and the upper and lower headers is formed to be detachable and can be assembled with screws or the like, and it is an air-conditioning panel that improves the molding quality by making the connection portion with the header have a simple component structure, enables the assembly of the radiation panel at the construction site, can adjust the height, and can also correct the height by replacing the connection portion or the like, further improving the installation adaptability.

Advantages of the Invention

[0013] According to the present invention, it is a radiation panel for air conditioning that can easily connect and assemble a plurality of substantially identical basic panels with a simple structure as needed. Through simple processing and standardization, etc., production management and inventory management become easy, productivity is improved, manufacturing equipment can be made smaller, and costs can be reduced. In addition, since both ends of each header during the assembly of the radiation panel for air conditioning can be easily sealed with quick-joint type sealing plugs, it becomes easy to line up radiation panels with different performances, and it also becomes easy to respond to load fluctuations after installation. Furthermore, since there is one upper header and one lower header respectively, the depth of the panel can be reduced, and the protrusion during wall installation can be reduced. And the circulation of the circulating heat medium is through a plurality of vertical pipes, and the pressure loss can also be reduced. Also, since a flow adjustment hole is provided at the connection part between the header and the vertical pipe, the heat medium can circulate simultaneously and uniformly in each vertical pipe, and performance degradation can be prevented. Furthermore, when connecting the vertical pipe and the header with an adhesive, the adhesive area is enlarged, so it can be surely adhered.

[0014] In the second invention, an external connection part is provided on the upper header, where the inlet and outlet pipes of the circulating heat medium or the air vent valve can be easily connected in a quick-joint type. Thus, the installability and piping workability can be improved, and air venting can be done more easily and surely for the air vent valve provided in the inlet and outlet piping. Furthermore, in the third invention, a plurality of vertical pipes are arranged substantially in parallel as a front row pipe and a rear row pipe when viewed from the front, and the rear row pipe is arranged at approximately the center between the pipes in the front row. Therefore, the radiant heat of the rear row of vertical pipes can be efficiently radiated into the air-conditioned space, and the heating and cooling capacity can be improved. In the fourth invention, on the front side of each panel, a structure is adopted such that at least approximately 50% of the surface area of the vertical pipe is in contact with the aluminum panel. Heat is conducted from the vertical pipe to the aluminum panel with an enlarged radiation area, improving the radiation performance and the designability. In the fifth invention, each of the vertical pipes is an aluminum three-layer pipe with the inner and outer surfaces made of resin and an aluminum pipe placed between the two resins to form a three-layer structure. Therefore, it eliminates the permeation of oxygen and the like in the air that occurs in resin pipes, prevents the deterioration of performance over time due to the oxidation of the heat medium, and makes it unnecessary to regularly replace the heat medium. In addition, since the aluminum three-layer pipe has little expansion and contraction due to heat, it can prevent the deformation of the panel even during long-term use. In the sixth invention, the connection parts between each of the vertical pipes and the upper and lower headers are one-touch joints. Therefore, compared with resin brazing or adhesive connection, they can be joined simply and reliably, significantly reducing the man-hours, preventing the leakage of the heat medium due to long-term use, enabling the assembly of the radiation panel at the construction site, and allowing for height adjustment, thus improving the installation adaptability. Furthermore, in the seventh invention, the connection parts between each of the vertical pipes and the upper and lower headers are formed to be detachable and can be assembled with screws or the like. In the air-conditioning panel, by making the connection parts between the headers and the connection parts have a simple component structure, the molding quality is improved, the assembly of the radiation panel at the construction site is possible, the height can be adjusted, and the height can also be corrected by replacing the connection parts or the like, further improving the installation adaptability.

Brief Description of the Drawings

[0015]

Figure 1

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Figure 10

Modes for Carrying Out the Invention

[0016] Embodiment 1 of the present invention will be described. FIG. 1 is an explanatory view of Embodiment 1 of the present invention, (A) is a front view, (B) is a side view, and (C) is a cross-sectional view of the header portion. Note that the connection portion of the lower header 3 with the vertical pipe 1 is the same as the cross-sectional view (C) of FIG. 1 and is omitted. Further, in Embodiment 1 and the following embodiments, a configuration in which the vertical pipes 1 are arranged in two rows in the front and rear is shown, and details will be described later with reference to FIG. 3. Of course, the vertical pipes 1 may be arranged in a single row, and the row configuration can be changed according to the situation in a timely manner. In FIG. 1, the first basic panel 5 includes a plurality of vertical pipes 1 through which a heat medium circulates, a joint connected to one end of the plurality of vertical pipes 1, an upper header 2 in which an upper flow rate adjustment hole 6 communicating with the joint is formed, a joint connected to the other end of the plurality of vertical pipes 1, and a lower header 3 in which a lower flow rate adjustment hole 6 communicating with the joint is formed, and external connection portions 4 provided at both ends of the upper header 2 and the lower header 3 for circulating the heat medium with the outside. The upper header 2 or the lower header 3 is an air-conditioning radiation panel that simultaneously circulates the heat medium from one to the other through the upper flow rate adjustment hole 6 and the lower flow rate adjustment hole 6 to the plurality of vertical pipes 1. This first basic panel 5 allows the heat medium to flow into the plurality of vertical pipes 1 simultaneously from the upper header 2 (or the lower header 3) and flow out to the lower header 3 (or the upper header 2). Note that the two locations of the external connection portion 4 in the present Embodiment 1 serve as connection portions for the inlet / outlet pipes for flowing the heat medium in and out from the outside of the air-conditioning radiation panel, and the external connection portion 4 that does not require connection to the outside can be easily sealed with a quick-join type sealing plug. Next, a configuration example of the header will be described with reference to the cross-sectional view of FIG. 1(C). Note that the cross-sectional view of FIG. 1(C) shows the cross-section of the upper header 2, but the cross-section of the lower header 3 is the same, so it is omitted. At the joints of the upper header 2 and the lower header 3 with the vertical pipes 1, flow adjustment holes 6 with a diameter approximately one-third of the inner diameter of the vertical pipes 1 are provided to ensure a uniform flow rate of the heat medium to each vertical pipe 1. In this embodiment, the diameter is approximately one-third of the inner diameter. However, if the diameter is increased, the flow velocity of the heat medium flowing through the vertical pipes will decrease. Therefore, it can be designed to an optimal diameter in a timely manner according to the situation. With this configuration, the flow rate of the heat medium can be adjusted from the upper header 2 (or the lower header 3) to the plurality of vertical pipes 1, and the heat medium can be made to flow out simultaneously and evenly. Also, pipe insertion portions 7 are provided in the upper header 2 and the lower header 3. Since the cross-section of the pipe insertion portion 7 is formed in a double-cylindrical shape so that the ends of the vertical pipes 1 can be inserted, when joining with an adhesive, the joined portion has two surfaces, namely the inner surface and the outer surface of the vertical pipe, increasing the joining area and making it difficult for the adhesive to leak to the outside, ensuring that the vertical pipe and the pipe insertion portion 7 can be joined. At the connection portion with the vertical pipe 1, external loss of the heat medium can be prevented. Embodiment 2 of the Invention

[0017] Embodiment 2 of the present invention will be described. In the following embodiments of the present invention, since the structures of the upper header 2 and the lower header 3 are the same as those in Embodiment 1, the description is omitted. FIG. 2 is an explanatory view of Embodiment 2 of the present invention, (A) is a front view, and (B) is a side view. In this figure, the second basic panel 8 is an air-conditioning radiation panel having a plurality of vertical pipes 1 through which a heat medium circulates, an upper header 2 connecting one end of the vertical pipe 1, a lower header 3 connecting the other end of the vertical pipe 1, an upper portion of the upper header 2, and external connection portions 4 provided at both ends of the upper header 2 and the lower header 3. This air-conditioning radiation panel allows the heat medium to flow into the plurality of vertical pipes 1 simultaneously from the upper header 2 (or the lower header 3) and flow out to the lower header 3 (or the upper header 2). Further, the two external connection portions 4a at the upper portion of the upper header 2 are connection portions for the inlet / outlet pipes of the heat medium or the air vent valve. Note that the external connection portion 4 that does not require connection to the outside is a connection portion for a sealing plug to prevent leakage. In Embodiment 2, since the external connection portion 4a is provided on the upper header 2 so that the inlet / outlet pipes of the heat medium, the air vent valve, and the sealing plug can be easily connected by a quick joint type or the like, the installability and the piping workability can be improved. Further, if an air vent valve provided in the inlet / outlet pipe is connected to the external connection portion 4a, air venting can be easily and surely performed. Embodiment 3 of the Invention

[0018] FIG. 3 is an explanatory view of Embodiment 3 of the present invention, (A) is a front view, (B) is a side view, and (C) is a cross-sectional view taken along line a-a' of the front view (A). In this figure, a plurality of vertical pipes 1 are arranged in two rows, front and back, and the rear vertical pipe 10 is arranged approximately at the center between the front row vertical pipes 9. Note that, in order to simplify the configuration of the header, it is common to arrange the rear vertical pipe 10 behind the front row vertical pipes 9. In this case, the radiant heat of the rear vertical pipe 10 is blocked by the front row vertical pipes 9, and the performance of the rear vertical pipe 10 cannot be fully exhibited. As an air-conditioning radiation panel, the radiation performance deteriorates with respect to the radiation area of the vertical pipes. However, as in this embodiment, by arranging the rear vertical pipe 10 approximately at the center between the front row vertical pipes 9, the radiation performance of the rear vertical pipe 10 is improved, and the performance of the air-conditioning radiation panel is improved. Embodiment 4 of the Invention

[0019] FIG. 4 is an explanatory view of Embodiment 4 of the present invention, (A) is a front view, and (B) is a cross-sectional view taken along line b-b' of the front view (A). In the figure, a plurality of vertical pipes 11 in a row are connected to an upper header 12 and a lower header 13, and an aluminum panel 14 is provided on the front side of the row of the plurality of vertical pipes 11 in the row, and at least approximately 50% of the surface area of the vertical pipe 11 is in contact with the aluminum panel 14. Note that the header configuration has external connection portions 4 at both ends as in Embodiment 2, and necessary basic panels can be connected to form a radiation panel for air conditioning. Also, in this figure, similar to Embodiment 2, there is a connection portion 4a for a heat medium inlet / outlet pipe or an air vent valve above the upper header 12. Next, the description of this specification will be given. The heat medium circulates through the vertical pipe 11, and the surface temperature of the vertical pipe 11 changes. Heat is transferred from the vertical pipe 11 to the contacting aluminum panel 14, and the temperature of the aluminum panel 14 changes, and heating and cooling are performed by radiant heat from the surface of the aluminum panel 14 whose surface area of the vertical pipe 11 is greatly expanded. With this configuration, the radiation area of the radiation panel for air conditioning as seen from the front is good in design such that the vertical pipe 11 is not visible, and the radiation panel for air conditioning can be made smaller due to the expansion of the radiation area. Furthermore, with the configuration of this embodiment, the upper header 12, the lower header 13, and the vertical pipe 11 can be assembled as a sub-assembly and can be easily joined to the aluminum panel 14. Embodiment 5 of the Invention

[0020] Embodiment 5 of the present invention will be described. FIG. 5 is an explanatory view of Embodiment 5 of the present invention, where (A) is a front view and (B) is a side view. It is an assembled view of a radiation panel for air conditioning in an embodiment where three (5a, 5b, 5c) first basic panels 5 are connected to slightly increase the capacity. The connection method will be described. The connection between the upper header 2a of the first basic panel 5a and the upper header 2b of the first basic panel 5b is made by a quick joint type sealing connector 15 (hereinafter referred to as the sealing connector) whose interior does not penetrate. The connections between the upper header 2b of the first basic panel 5b and the upper header 2c of the first basic panel 5c, between the lower header 3a of the first basic panel 5a and the lower header 3b of the first basic panel 5b, and between the lower header 3b of the first basic panel 5b and the lower header 3c of the first basic panel 5c are made by quick joint type through connectors 16 (hereinafter referred to as the through connectors) whose interiors penetrate. Also, an inlet pipe for the heat medium circulating to the external connection part 4a of the connected upper header 2a is connected to the inlet pipe connection part 17, and an outlet pipe for the heat medium is connected to the outlet pipe connection part 18 at the external connection part 4a of the upper header 2c. Also, the external connection part 4 of the lower header 3a of the panel 5a and the external connection part 4 of the lower header 3c of the panel 5c are connected and sealed with a quick joint type sealing plug 19 (hereinafter referred to as the sealing plug) that seals the flow of the heat medium. An air vent valve is provided in the middle of the inlet pipe and the outlet pipe. Also, if the basic panel is designated as a, then a is appended to each component name for subsequent designation. For example, if the panel is designated as a, the vertical pipe will be designated as 1a. The flow of the heat medium will be described. It flows in from the inlet pipe 17 (arrow ▲1▼), flows into the lower header 3a through a plurality of vertical pipes 1a from the upper header 2a (arrow ▲2▼), is introduced into the lower headers 3b and 3c through the through connector 16 (arrow ▲3▼), flows into the upper headers 2b and 2c through the vertical pipes 1b and 1c (arrow ▲4▼), converges (arrow ▲5▼) at the outlet pipe 18 for the heat medium provided in the upper header 2c, and then flows out (arrow ▲6▼). At this time, the connection part between the upper header 2a and the upper header 2b is separated by the sealing connector 15. Regarding the air bleeding within the panel in this embodiment, since the air bleeding valve is provided in the middle of the inlet and outlet pipes of the heat medium, it is discharged so as to be pushed out by the flow of the heat medium. However, a part of it may remain within the panel, and it may take time to discharge the air. Note that if the header connection configuration is reversed up and down, it is also possible to change the inlet and outlet of the heat medium to the lower header. Also, it is possible to reverse the inlet and outlet of the heat medium. Embodiment 6 of the Invention Embodiment 6 of the invention will be described with reference to the drawings.

[0021] Embodiment 6 of the present invention will be described. FIG. 6 is an explanatory view of Embodiment 6 of the present invention, where (A) is a front view and (B) is a side view. It is an assembled drawing of a radiation panel for air conditioning that is actually most frequently used with slightly increased capacity by connecting two (8a, 8b) of the second basic panels 8 and one (5d) of the first basic panels 5. The connection method will be described. The upper header 2a of the second basic panel 8a and the upper header 2b of the second basic panel 8b are connected by the sealing connector 15, and the connection of the upper header 2b of the second basic panel 8b, the upper header 2c of the first basic panel 5d, the lower header 3a of the second basic panel 8a, the lower header 3b of the second basic panel 8b, and the lower header 3c of the first basic panel 5d is connected by the through connector 16. Also, a heat medium inlet pipe connection part 17 and an air bleeding valve 20 are provided at the external connection part 4a of the upper header 2a of the second basic panel 8a, and an outlet pipe connection part 18 and an air bleeding valve 20 are provided at the upper header 2a of the second basic panel 8b. Note that the external connection parts 4 at the unconnected ends of the upper header 2a and the lower header 8b of the second basic panel 8a and the upper header 2d and the lower header 3d of the panel 5d are sealed by connecting the sealing plug 19 that seals the flow of the heat medium. The flow of the heat medium will be described. It flows in from the inlet pipe connection part 17 (arrow ▲11▼), flows through a plurality of vertical pipes 1a from the upper header 2a (arrow ▲12▼), flows into the lower header 3a, is introduced (arrow ▲13▼) into the lower headers 3b and 3d through the through connector 16, flows into the upper headers 2b and 2d through the vertical pipes 1b and 1d (arrow ▲14▼), converges (arrow ▲15▼) at the outlet pipe connection part 18 of the heat medium provided in the upper header 2b, and then flows out (arrow ▲16▼). At this time, the connecting part between the upper header 2a and the upper header 2b is separated by the sealing connector 15. In this embodiment, the inlet and outlet pipes of the heat medium can be constructed from above. The air in the upstream panel 8a of the heat medium can be discharged through the air vent valve 20 provided at the external connection part 4a of the upper header 2a, and the air in the downstream panels 8b and 5d of the heat medium can be discharged from the air vent valve 20 provided at the external connection part 4a of the upper header 2b. Therefore, air can be easily and surely removed. In addition, since the connections of the sealing connector 15, the through connector 16, the sealing plug 19, the inlet and outlet pipes of the heat medium, and the air vent valve 20 are also in the shape of a quick joint, the construction becomes easy. Note that the positions of the panel 8b and the panel 5d may be swapped, and the inlet and outlet pipe connection part and the air vent valve connection part may be reversed. Embodiment 7 of the Invention Embodiment 7 of the invention will be described with reference to the drawings.

[0022] Fig. 7 is an explanatory view of Embodiment 7 of the present invention, where (A) is a front view and (B) is a side view. It is an assembly drawing of a large-capacity air-conditioning radiation panel in which one sheet of the first basic panel 5 (5a) and one sheet of the second basic panel 8 (8b) are connected on the upstream side of the heat medium, and two sheets of the first basic panel 5 (5d, 5e) and one sheet of the basic panel 8 (8c) are connected on the downstream side of the heat medium. In addition, an inlet pipe connection part 17 and an air vent valve 20 of the heat medium are provided at the external connection part 4a of the upper header 2b of the panel 8b, and an outlet pipe connection part 18 and an air vent valve 20 of the heat medium are provided at the external connection part 4a of the upper header 2c of the panel 8c. The connection method will be described. The panel 5a and the panel 8b on the upstream side of the heat medium are connected by a through connector 16 to connect the upper header 2a and the upper header 2b and the lower header 3a and the lower header 3b. Further, the panel 8c, the panel 5d, and the panel 5e on the downstream side of the heat medium are connected by a through connector 16 to connect the upper header 2c, the upper header 2d, and the upper header 2e and the lower header 3c, the lower header 3d, and the lower header 3e. Note that the upper parts of the upper headers 2a and 3c of the panels 8b and 8c that distinguish the upstream side and the downstream side of the heat medium are connected by a sealing connector 15 that does not penetrate, and the lower headers 3b and 3c are connected by a through connector 16. And the unconnected ends of the panel 5a and the panel 5e are sealed by providing a sealing plug 19 at the external connection part 4. Next, the flow of the heat medium will be described. It flows into the upper header 2b from the inlet pipe connection part 17 (arrow ▲21▼), and also flows into the upper header 2a through the through connector 16 (arrow ▲22▼). The inflowed heat medium flows into the lower headers 3a and 3b through the plurality of vertical pipes 2a and 2b (arrow ▲23▼), is introduced into the lower headers 3c, 3d, and 3e through the through connector 16 (arrow ▲24▼), and flows into the upper headers 2c, 2d, and 2e through the plurality of vertical pipes 1c, 1d, and 1e (arrow ▲25▼), and flows out from the outlet pipe connection part 18 of the heat medium provided in the upper header 2c (arrow ▲26▼). At this time, the connection part between the upper header 2 and the upper header 2c is separated by a sealing connector 15. The air bleeding of this embodiment will be described. The air in the upstream side panels 5a and 8c of the heat medium can be discharged by the air bleeding valve 20 of the upper header 2a, and the air in the downstream side panels 8b, 5d, and 5e of the heat medium can be discharged from the air bleeding valve 20 provided in the upper header 2b, so that air bleeding can be easily and surely performed. Further, since the connection of the sealing connector 15, the through connector 16, the sealing plug 19, the inlet and outlet pipes of the heat medium, and the air bleeding valve 20 is also in the shape of a quick joint type, the construction becomes easy. Note that in this embodiment, the number of basic panels is set to 5, but when the air-conditioning area is large, the number of basic panels can be increased, which simplifies the piping construction and also reduces the construction cost. Also, in this embodiment, the inlet and outlet of the heat medium are from the upper headers 2b and 2c. However, the inlet pipe connection 17 and the outlet pipe connection part 18 may be sealed to form the upper headers 2a and 2e. Embodiment 8 of the Invention Embodiment 8 of the invention will be described with reference to the drawings.

[0023] FIG. 8 is an explanatory view of Embodiment 8 of the present invention, which is a partial cross-sectional view with the header and the vertical pipe connection part as one-touch joints. Here, a partial cross-section of the upper header 2 is shown, but the partial cross-section of the lower header 3 has the same configuration and is thus omitted. In this embodiment, the upper header 2 and the one-touch joint 21 are integrated. The one-touch joint 21 has a structure that is joined simply by inserting the vertical pipe 1. The vertical pipe 1 is inserted from the insertion hole 22 until the insertion confirmation hole 23 and fixed with the cap nut 24. At this time, the packing 25 for water stop is used to prevent the leakage of the heat medium, and the retaining ring 26 is used to prevent the vertical pipe 1 from coming off. In actual work, the packing 25 for water stop is inserted into the header, the retaining ring 26 is fixed with the cap nut 24 to complete the header, and the vertical pipe 1 is inserted from the insertion hole 22 as needed. Also, for the uniform flow rate of the heat medium to each vertical pipe 1, a flow rate adjustment hole 6 with a diameter approximately one-third of the inner diameter of the vertical pipe 1 is provided. In this embodiment, the diameter is approximately one-third of the inner diameter. However, if the diameter is increased, the flow velocity of the heat medium flowing through the vertical pipe will decrease. Therefore, it can be designed to an optimal diameter in a timely manner according to the situation. With this configuration, the flow rate of the heat medium can be adjusted from the upper header 2 (or the lower header 3) to the plurality of vertical pipes 1, and can be made to flow out simultaneously and evenly. Since the connection parts of each vertical pipe 1 with the upper header 2 and the lower header 3 are one-touch joints 21, it can be joined simply and reliably compared to resin brazing or adhesive connection, significantly reducing the man-hours, and preventing the leakage of the heat medium due to long-term use. Furthermore, it becomes possible to assemble the radiation panel at the construction site, and height adjustment is also possible, improving the installation adaptability. Embodiment 9 of the Invention Embodiment 9 of the invention will be described with reference to the drawings.

[0024] FIG. 9 is an explanatory diagram of Embodiment 9 of the present invention, and is a partial view in which the one-touch joint of the header and the vertical pipe connection part is detachable. FIG. 9(A) is a state diagram in which the one-touch joint is separated from the header, and FIG. 9(B) is a state diagram in which the header and the one-touch joint are connected. Here, two surfaces of the upper header are shown, but the partial surface of the lower header 3 has the same configuration, so it is omitted. In addition, since the internal structure of the one-touch joint 21 has been described in Example 8, it is omitted. The upper header 2 is provided with a flow rate adjustment hole 6 and a male joint 27 for connecting the one-touch joint 21. The one-touch joint 21 is provided with a female joint 28 that mates with the male joint 27 of the header 2, and the male joint 27 and the female joint 28 are connected in communication by screwing. The vertical pipe 1 is assembled by inserting it from the pipe insertion hole 22 to the pipe insertion confirmation hole 23 of the one-touch joint 21. In this way, since the one-touch joint, which is the connection part between the vertical pipe 1 and the header, is detachable, the connection part between the header and the connection part has a simple component structure, improving the molding quality and enabling the assembly of the radiation panel at the construction site. In addition, since the height of the radiation panel can be corrected by replacing the connection part, etc., the installation adaptability can be further improved. In this embodiment, the communication between the one-touch joint and the header is a male joint and a female joint, but it may be a quick joint type that enables easier assembly.

[0025] As described above, the air-conditioning radiation panel 5 has one upper header 2 and one lower header 3 each, and is a standardized basic panel with a simple configuration. Therefore, productivity can be improved with simple processing, production management, and inventory management, and the manufacturing equipment can be made smaller and the cost can be reduced. In addition, a plurality of the panels can be easily connected with a connector or the like, and both ends of each header can be easily sealed with a connector-type sealing plug during panel assembly. Moreover, since the upper header has an inlet / outlet pipe connection part and an air vent valve connection part, pipe construction and air venting are simplified. In addition, it becomes easy to lineup radiation panels with different performances, and it also becomes easy to cope with load fluctuations after installation. Furthermore, since there is one upper header 2 and one lower header 3 respectively, the depth of the panel can be reduced, and the protrusion during wall installation can be reduced. Also, the circulation of the heat medium is through a plurality of vertical pipes, and the pressure loss can be reduced. And, since the plurality of vertical pipes 1 are arranged in a substantially balanced manner in the front row and the rear row, and the vertical pipes in the rear row are arranged at substantially the center between the vertical pipes in the front row when viewed from the front during installation, the radiant heat of the vertical pipes in the rear row can be efficiently radiated into the air-conditioned space, improving the heating and cooling capacity. Furthermore, each vertical pipe 1 is an aluminum three-layer pipe with the inner and outer surfaces made of resin and an aluminum pipe placed between the two resins to form a three-layer structure. By using an aluminum three-layer pipe that prevents the permeation of oxygen in the air, etc., the permeation of oxygen in the air is eliminated, preventing the performance from deteriorating over time and eliminating the need to replace the deteriorated heat medium. Also, since the aluminum three-layer pipe has little expansion and contraction due to heat, it can prevent the panel from deforming even during long-term use. And, since the connection parts of each vertical pipe 1 with the upper header 2 and the lower header 3 are one-touch joints 21, they can be joined simply and reliably compared to resin brazing or adhesive connection, significantly reducing the man-hours, and preventing the leakage of the heat medium due to long-term use. Furthermore, it enables the assembly of the radiant panel at the construction site, allows for height adjustment, and improves the installation adaptability.

Industrial Applicability

[0026] As described above, the present invention is a radiant panel for air conditioning that can be easily assembled by simply connecting a plurality of substantially identical basic panels as needed. It can reduce costs through standardization, etc., is excellent in workability such as piping and air bleeding, has the adaptability to handle various loads and all changing loads, prevents the permeation of oxygen in the air into the heat medium, thus preventing the deterioration of the heat medium, and becomes high-performance through the arrangement of the vertical pipes, enabling the widespread popularization of energy-saving and comfortable radiant air conditioning.

Explanation of Reference Numerals

[0027] 1 Vertical pipe 2 Upper header 3 Lower header 4 External connection part 5 First basic panel 6 Flow adjustment hole 7 Pipe insertion part 8 Second basic panel 9 Front row vertical pipe 10 Rear row vertical pipe 11 Upper header of the second basic panel 12 Upper header of the single row pipe 13 Lower header of the single row pipe 14 Aluminum panel 15 Sealing connector 16 Through connector 17 Inlet pipe connection part 18 Outlet pipe connection part 19 Sealing plug 20 Air vent valve 21 One-touch joint 22 Vertical pipe insertion hole 23 Vertical pipe insertion confirmation hole 24 Bag nut 25 Sealing packing 26 Retaining ring 27 Male thread 28 Female thread

Claims

1. An air-conditioning radiant panel comprising: a plurality of vertical pipes; an upper header having an upper joint connected to one end of the plurality of vertical pipes, an upper flow rate adjustment hole communicating with the upper joint, and an upper external connection part for circulating a heat medium with the outside; and a lower header having a lower joint connected to the other end of the plurality of vertical pipes, a lower flow rate adjustment hole communicating with the lower joint, and a lower external connection part for circulating the heat medium with the outside, wherein the heat medium introduced from the upper external connection part or the lower external connection part is circulated from one side of the upper header or the lower header to the other side through the plurality of vertical pipes via the upper flow rate adjustment hole and the lower flow rate adjustment hole.

2. 2. The air-conditioning radiant panel according to claim 1, wherein the upper header is provided with a heat medium inlet / outlet piping connection section and an air vent valve connection section.

3. 3. The air-conditioning radiant panel according to claim 1, wherein the plurality of vertical pipes are arranged in two rows, one in front and one in back, and the rear vertical pipes are arranged between the front vertical pipes.

4. 3. The air-conditioning radiant panel according to claim 1, wherein an aluminum panel is provided on the front side of a row of vertical pipes, so that at least approximately 50% of the surface area of ​​the vertical pipes is in contact with the aluminum panel.

5. 5. An air-conditioning radiant panel according to claim 1, wherein each of said vertical pipes is an aluminum three-layer pipe.

6. 6. The air-conditioning panel according to claim 1, wherein the upper joint and the lower joint are one-touch joints.

7. 7. The air-conditioning panel according to claim 1, wherein an upper joint portion and a lower joint portion are formed so as to be detachable from the upper header and the lower header.

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