JP2011012849A - Header and temperature control mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a header reduced in water passing pressure loss in a fluid passage and a temperature control mat equipped with the header.SOLUTION: Main nozzles 11, 12 of this header 1 communicate with sub-nozzles 21-28 via vertical holes 31, 32 and horizontal holes 41-48. The vertical holes 31, 32 have large diameters at a side of the main nozzles 11, 12, and has small diameters at a depth side. A small-diameter section 31b and the horizontal holes 43, 44 are positioned at a top face side of a body section 2, and a small diameter section 32b and the horizontal holes 47, 48 are positioned at a lower face side. The horizontal holes 43, 44 and the horizontal holes 47, 48 have positional relationship not overlapped to each other.

Description

  The present invention relates to a header for distributing fluid from a common main pipe to a plurality of sub pipes, and in particular, a main pipe connection port projecting from a body portion so that the main pipe is connected, and a sub pipe A plurality of sub-piping connection ports projecting from the body portion so that piping is connected, and a fluid flow path provided in the body portion for communicating the main piping connection port and each sub-piping connection port And a header with

  The present invention also relates to a temperature control mat for heating and cooling a floor, wall, ceiling, etc. of a building room, and in particular, a groove for pipe installation and a space for header arrangement are provided on the plate surface. The present invention relates to a temperature control mat including a substantially rectangular substrate, a header disposed in the space, and a fluid circulation pipe connected to each sub pipe connection port of the header and routed in the groove.

  2. Description of the Related Art A floor heating structure in which a temperature control mat with a hot water circulation pipe routed in a groove on the upper surface of a substrate is laid on the floor is well known.

  Japanese Patent Laid-Open No. 9-269135 discloses a temperature control mat in which a plurality of hot water circulation pipes are routed so that hot water circulates through each hot water circulation pipe.

  FIG. 8 is a plan view of the temperature control mat described in FIG. 2 of the same number, and FIGS. 9 (a), (b), (c) and (d) are plan views of the header of the same number, They are a BB line sectional view, a CC line sectional view, and a DD line sectional view.

  The temperature control mat 100 has a substantially square substrate 101. Two hot water circulation pipes (hereinafter abbreviated as hot water pipes) 102 a and 102 b are routed around the substrate 101. Three small joists 103 are disposed on the substrate 101. Each small joist 103 extends in a direction substantially parallel to one side of the substrate 101 (vertical direction in FIG. 8). The small joists 103 are arranged substantially in parallel with each other in a direction perpendicular to the extending direction (left and right direction in FIG. 8). Hereinafter, the vertical direction and the horizontal direction refer to the vertical direction and the horizontal direction in FIG.

  The small joists (hereinafter referred to as the central small joists) 103 arranged at the center in the left-right direction of the substrate 101 are arranged with their upper ends aligned with the upper sides of the substrates 101, and their lower ends are separated from the lower sides of the substrates 101. ing. A header arrangement space 101a (not shown in the same reference number) is provided at the center of the lower side of the substrate 101 in the left-right direction, and the header 104 is arranged in the header arrangement space 101a. Between this header arrangement space 101a and the lower end of the central small joist 103 is a pipe routing space 101b (not described in the same number).

  Each of the small joists (hereinafter referred to as the left end small joists and the right end small joists) 103 arranged on the left end side and the right end side of the substrate 101 are arranged with their lower ends aligned with the lower side of the substrate 101, and the upper ends thereof are It is separated from the upper side of the substrate 101. Between the upper ends of the small joists 103 on the left end side and the right end side and the upper side of the substrate 101, pipe routing spaces 101c and 101d (not described in the same number) are provided.

  The hot water pipes 102a and 102b are routed so as to circulate around the plate surface of the substrate 101 while bypassing the small joists 103 through these pipe routing spaces 101b, 101c and 101d, respectively. The hot water pipes 102a and 102b are arranged substantially parallel to each other with a space therebetween. Between the central small joist 103 and the right end small joist 103, between the right end small joist 103 and the right side of the substrate 101, between the central small joist 103 and the left end small joist 103, and the left end small joist 103 Between the left side of the substrate 101, the hot water pipes 102 a and 102 b extend in a straight line substantially parallel to the small joists 103, respectively.

  Both end sides of each hot water pipe 102a, 102b face the header placement space 101a from the left and right sides of the header placement space 101a. In the vicinity of the header arrangement space 101a, both end sides of the hot water pipes 102a and 102b extend substantially parallel to the lower side of the substrate 101.

  As shown in FIG. 9 (a), the header 104 includes a body portion 105, a hot water supply outward pipe (outward side main pipe) 114 and a hot water return return pipe (return side main pipe) of the external hot water circulation path 113. Piping) 115 and the return pipe connection port (return side main pipe connection port) 107 and the return pipe connection port (return side main pipe connection port) 107 projecting from the body portion 105 so as to be connected respectively, and each hot water A pair of forward hot water pipe connection ports (outward side auxiliary pipe connection ports) 108 and 109 projecting from the body portion 105 so that one end sides of the pipes 102a and 102b are connected to each other, and the hot water pipes 102a and 102b. Are provided with a pair of return-side hot water pipe connection ports (return-side sub-pipe connection ports) 110 and 111 projecting from the body portion 105 so as to be connected to each other.

  As shown in FIGS. 9 (a) to 9 (d), the body portion 105 is a substantially rectangular disk-shaped body having a pair of main plate surfaces 105a and 105b and four side surfaces 105c, 105d, 105e and 105f.

  The forward pipe connection port 106 and the return pipe connection port 107 protrude from one side surface 105c (the downward surface in FIGS. 8 and 9 (a)) of the body portion 105. Further, out of the two side surfaces 105d and 105f orthogonal to the side surface 105c, the forward side hot water pipe connection port 108 and the return side hot water pipe connection port from one side surface 105d (the right side surface in FIGS. 8 and 9A). 110 protrudes from the other side surface 105f (the left-facing surface in FIGS. 8 and 9 (a)), and the outgoing hot water pipe connection port 109 and the return hot water pipe connection port 111 project. A return-side hot water piping connection port 111 is disposed on the opposite side of the body portion 105 with respect to the outward-side hot water piping connection port 108, and an outgoing-side hot water piping connection port 109 is provided on the opposite side of the return-side hot water piping connection port 110. Is arranged.

  In the body portion 105, a forward side hot water flow path (outward side fluid flow path) 120 that connects the forward pipe connection port 106 and the forward side hot water pipe connection ports 108, 109, a return pipe connection port 107, and each A return-side hot water flow path (return-side fluid flow path) 121 that communicates with the return-side hot water pipe connection ports 110 and 111 is provided.

  In the same reference, the forward hot water flow path 120 includes a first forward flow path in which the forward pipe connection port 106 communicates with the forward hot water pipe connection port 108, and the forward pipe connection port 106 and the forward hot water pipe connection port. And a second forward flow path communicating with 109.

  The first forward flow path includes a large diameter flow path 120a whose one end communicates with the forward pipe connection port 106, a medium diameter flow path 120b that communicates with the other end side of the large diameter flow path 120a, and a medium diameter flow path 120b. A continuous small-diameter channel 120c and a large-diameter channel 120d having one end connected to the small-diameter channel 120c and the other end connected to the outgoing hot water pipe connection port 108 are configured. One end side of the large-diameter channel 120e is connected to an intermediate portion in the extending direction of the large-diameter channel 120a on the outgoing pipe connection port 106 side so as to form a T-shaped path, and the other end side of the large-diameter channel 120e is It communicates with the outgoing side hot water piping connection port 109. These large-diameter channels 120a and 120e constitute a second forward channel. The medium-diameter channel 120b and the small-diameter channel 120c are smaller in diameter than the large-diameter channels 120a, 120d, and 120e.

  The return-side hot water flow path 121 includes a first return flow path that connects the return pipe connection port 107 and the return-side hot water pipe connection port 111, and the return pipe connection port 107 and the return-side hot water pipe connection port 110. And a second return channel communicating therewith.

  The first return channel includes a large-diameter channel 121a whose one end communicates with the return pipe connection port 107, a medium-diameter channel 121b that communicates with the other end of the large-diameter channel 121a, and the medium-diameter channel 121b. A continuous small-diameter channel 121c and a large-diameter channel 121d having one end connected to the small-diameter channel 121c and the other end connected to the return-side hot water pipe connection port 111 are configured. One end side of the large-diameter channel 121e is connected to an intermediate portion in the extending direction of the large-diameter channel 121a on the return pipe connection port 107 side so as to form a T-shaped path, and the other end side of the large-diameter channel 121e is The return side hot water piping connection port 110 communicates. These large-diameter channels 121a and 121e constitute a second return channel. The medium-diameter channel 121b and the small-diameter channel 121c are smaller in diameter than the large-diameter channels 121a, 121d, and 121e.

  As shown in FIG. 8, in this header 104, the outgoing hot water pipe connection port 108 and the return hot water pipe connection port 110 protrude rightward from the body portion 105, and the outgoing hot water pipe connection port 109 and the return side hot water pipe connection port. 111 is arranged in the header arrangement space 101 a so that 111 protrudes leftward from the body part 105 and the outgoing pipe connection port 106 and the return pipe connection port 107 protrude downward from the body part 105.

  One end side of the hot water pipe 102 a is connected to the outgoing hot water pipe connection port 108 from the right side of the header 104, and one end side of the hot water pipe 102 b is connected to the return side hot water pipe connection port 110. In addition, the other end side of the hot water pipe 102 a is connected to the return side hot water pipe connection port 110 from the left side of the header 104, and the other end side of the hot water pipe 102 b is connected to the forward side hot water pipe connection port 109.

  The temperature control mat 100 is laid on the floor of the room, the outgoing pipe 114 of the external hot water circulation path 113 is connected to the outgoing pipe connection port 106 of the header 104, and the return of the external hot water circulation path 113 to the return pipe connection port 107. A pipe 115 is connected, and a floor finish is laid on the temperature control mat 1 to construct a heated floor.

  The forward pipe 114 and the return pipe 115 of the external hot water circulation path 113 are each connected to a heat source device 116. Hot water from the heat source device 116 is supplied to the header 104 via the forward pipe 114 and distributed to the hot water pipes 102a and 102b. Then, the hot water flowing through the hot water pipes 102 a and 102 b and returning to the header 104 is returned from the header 104 to the heat source device 116 via the return pipe 115. In this way, the warm water is circulated through each of the hot water pipes 102a and 102b, whereby floor heating is performed.

  Such temperature control mats are also installed on the walls and ceilings of buildings. Also, cooling may be performed by circulating a refrigerant.

JP 9-269135 A

  As shown in FIG. 9 (a), in the header 104 of Japanese Patent Laid-Open No. 9-269135, the medium-diameter channel 120b and the small-diameter channel 120c are formed in the plate-shaped body portion 105 of FIGS. The middle-diameter channel 121 b and the small-diameter channel 121 c are located on the upper surface side of the body portion 105. Since the upper surface side 120b and 120c should not be short-circuited with the lower surface side fluid 121b and 121c, the diameters of the fluids 120b and 120c and the fluid 121b and 121c must be reduced. Therefore, the water pressure loss of the fluids 120b, 120c, 121b, 121c is large.

  It is an object of the present invention to provide a header having a small water flow pressure loss in a fluid flow path and a temperature control mat including the header.

  The header according to claim 1 distributes the fluid from the forward main pipe connected to the fluid source to a plurality of forward sub pipes and collects the fluid from the plurality of return side sub pipes into the return main pipe. Header body, forward-side main piping connection port projecting from the body portion so that the forward-side main piping is connected, and body portion so that the return-side main piping is connected The return side main pipe connection port projecting from the plurality of forward side sub pipe connection ports projecting from the body portion and the return side sub pipe are connected so that the forward side sub pipe is connected. A plurality of return side sub-piping connection ports projecting from the body portion, and a forward side that is provided in the body portion and communicates the forward side main piping connection port and each forward side sub-piping connection port Communicating the fluid flow path with the return side main pipe connection port and each return side sub pipe connection port A return-side fluid flow path, wherein the forward-side main pipe connection port side of the forward-side fluid flow path and the return-side fluid flow path is a large-diameter portion, and the back side farther than that is the large-diameter portion. The small diameter portion is smaller than the diameter portion.

  According to a second aspect of the present invention, there is provided a header according to the first aspect, wherein the body portion has a rectangular shape having a longitudinal direction and a short side direction, and the forward side main piping connection port and the return side main piping connection port are ones of the body portion. Provided on one short side surface, and a plurality of the forward side sub-pipe connection port and the return side sub-pipe connection port are provided on each of the longitudinal side surfaces of the body part, The return-side fluid flow path includes a vertical hole extending in the longitudinal direction of the body portion, and a vertical hole extending in the direction, and a horizontal hole communicating the vertical hole and the forward side auxiliary pipe connection port. The side and the return side sub-piping connection port communicate with each other. Connected to the return side sub-pipe connection on the return side main pipe connection port side with respect to the large diameter part of the vertical hole of the return side fluid flow path The port communicates via a horizontal hole, and the return side sub-pipe connection port far from the forward side main pipe connection port communicates via the horizontal hole to the small-diameter portion of the vertical hole of the forward side fluid flow path. The return side sub-pipe connection port far from the return side main pipe connection port communicates with the vertical hole small diameter portion of the fluid flow path through a horizontal hole. The return side sub-pipe connection port connected to the large-diameter portion of the vertical hole of the return-side fluid flow path is arranged on the side of the body part opposite to the forward side sub-pipe connection port connected to the small-diameter portion. And the return side sub-pipe connection port connected to the small-diameter portion is disposed on the side surface of the body portion opposite to each other.

  According to a third aspect of the present invention, there is provided a header according to the second aspect, wherein the small-diameter portion of the forward fluid passage and the lateral hole connected to the forward-side fluid passage are provided on the side close to one surface of the body portion. And the lateral hole connected to it is provided in the side close | similar to the other surface of a body part, It is characterized by the above-mentioned.

  According to a fourth aspect of the present invention, there is provided a header according to the third aspect, wherein the lateral hole connected to the small diameter portion of the forward fluid passage and the lateral hole connected to the small diameter portion of the return fluid passage do not overlap in the thickness direction of the body portion. It is provided by arrangement relation.

  According to a fifth aspect of the present invention, in the header according to any one of the second to fourth aspects, the large-diameter portion of the forward-side fluid passage and the return-side fluid passage further has a larger diameter than the innermost lateral hole. It extends to the back side.

  6. The temperature control mat according to claim 6, wherein the plate surface has a substantially rectangular substrate provided with a groove for arranging a pipe and a space for arranging a header, and is arranged in the space. And a fluid circulation pipe connected to the auxiliary pipe connection port of the header and routed in the groove.

  In the header of the present invention, the outer side main pipe connection port side of the forward side fluid flow path and the return side main pipe connection port side of the return side fluid flow path are larger in diameter than the respective back sides. The flow pressure loss of the fluid flow path is as small as the large diameter portion.

  In the header of claim 2, the vertical hole back side has a small diameter portion, but the vertical hole back side of the forward side fluid flow path has a part of the hot water already diverted to the forward side sub piping connection port. Since the flow rate is small, the water pressure loss is small. On the far side of the vertical hole on the return side and the return side, since part of the return water from the return side auxiliary pipe connection port has not yet joined, the flow rate is small and the water pressure loss is small.

  In one aspect of the present invention, the forward side sub pipe connection port is disposed on the forward side main pipe connection port side on one side surface of the body portion, and is disposed on the side far from the forward side main pipe connection port on the other side surface. . The return side sub-pipe connection port is arranged on the side far from the return side main pipe connection port on one side surface of the body portion, and is arranged on the return side main pipe connection port side on the other side surface. The forward side auxiliary pipe connection port and the return side auxiliary pipe connection port may be reversed.

In this case, the small-diameter portion of the forward fluid flow channel and the horizontal hole connected thereto are arranged on the side close to one surface of the body portion, and the small-diameter portion of the return-side fluid flow channel and the horizontal hole connected thereto are the other side of the body portion. Place on the side close to the surface. It is preferable that the horizontal hole connected to the small-diameter portion of the forward-side fluid flow channel and the horizontal hole connected to the small-diameter portion of the return-side fluid flow channel have an arrangement relationship that does not overlap in the thickness direction of the body portion. By doing so, it is possible to increase the distance between the forward side lateral hole and the return side lateral hole and to increase the strength of the body portion. In addition, it is possible to eliminate an operation mistake that erroneously causes the forward side hole and the return side hole to communicate with each other at the time of drilling the horizontal hole when manufacturing the body portion.
In addition, the water passage pressure loss is reduced by extending the large-diameter portion of the vertical hole further to the deeper side than the deepest side hole connected to the same as in the fourth aspect.

  Since the temperature control mat of the present invention (Claim 6) includes the header of the present invention, a fluid such as warm water can be circulated with a low pressure loss.

It is a top view of the header concerning an embodiment. It is sectional drawing which follows the IIa-IIa-IId-IId line | wire of FIG. It is sectional drawing which follows the IIIa-IIIa, IIIb-IIIb, and IIIc-IIIc line | wire of FIG. It is a top view of the header concerning another embodiment. It is a top view which shows another embodiment. It is a top view which shows another embodiment. It is sectional drawing of a part of temperature control mat. It is a top view of the conventional temperature control mat. It is the top view and sectional drawing of the conventional header.

  Hereinafter, the header 1 according to the embodiment will be described with reference to the drawings. In FIG. 1, the rectangular header body 2 is illustrated so that the long side is in the vertical direction. In the following description, the left and right are referred to as the left and right in FIG.

  The header 1 is used for a temperature control mat as shown in FIG.

<Description of Header 1 in FIGS. 1 to 3>
The header 1 has a rectangular plate-like body portion 2 and a first main nozzle 11, a second main nozzle 12, and a sub-piping connection port that project from the body portion 2. The first to eighth sub nozzles 21 to 28 are provided.

  The main nozzles 11 and 12 are provided on one side surface of the rectangular body portion 2 in the short direction. The sub nozzles 21 to 24 are provided on one side surface (the left side surface in FIG. 1) in the longitudinal direction of the body portion 2, and the sub nozzles 25 to 28 are provided on the other side surface (the right side surface in FIG. 1). ing.

  Each of the main nozzles 11 and 12 and the sub nozzles 21 to 28 includes inner holes 11a, 12a, and 21a to 28a penetrating in the axial direction. Moreover, the outer peripheral surfaces of the main nozzles 11 and 12 and the sub nozzles 21 to 28 have a bowl shape so that the resin hot water pipe is inserted into the outer fitting shape.

  In the body portion 2, a vertical hole 31 that communicates with the inner hole 11 a of the first main nozzle 11, a vertical hole 32 that communicates with the inner hole 12 a of the second main nozzle 12, and the first sub nozzle 21. A lateral hole 41 communicating with the inner hole 21a, a lateral hole 42 communicating with the inner hole 22a of the second sub-nozzle 22, a lateral hole 43 communicating with the inner hole 23a of the third sub-nozzle 23, and a fourth A lateral hole 44 communicating with the inner hole 24a of the sub nozzle 24, a lateral hole 45 communicating with the inner hole 25a of the fifth sub nozzle 25, and a lateral hole 46 communicating with the inner hole 26a of the sixth sub nozzle 26 A lateral hole 47 communicating with the inner hole 27a of the seventh sub nozzle 27 and a lateral hole 48 communicating with the inner hole 28a of the eighth sub nozzle 28 are provided.

  The vertical holes 31 and 32 extend in the longitudinal direction of the body portion 2. The vertical hole 31 is located near the right side of FIG. 1, and the vertical hole 32 is located near the left side of FIG. About half of the longitudinal direction of the longitudinal holes 31 and 32 (the main nozzles 11 and 12 side) is the large-diameter portions 31a and 32a, and the far side (the side far from the main nozzles 11 and 12) is the small-diameter portion 31b and 32b. The hole diameters of the large diameter portions 31a and 32a are preferably about 50 to 85%, particularly about 62 to 71% of the thickness of the body portion 2. The hole diameters of the small diameter portions 31b and 32b are preferably about 10 to 40%, particularly about 25 to 33% of the thickness of the body portion 2.

  The large diameter portions 31 a and 32 a are provided in the center of the body portion 2 in the thickness direction. The small diameter portion 31 b is provided on the upper surface side of the body portion, and the small diameter portion 32 b is provided on the lower surface side of the body portion 2. The large diameter portions 31a and 32a extend a predetermined distance (preferably 8 mm or more) further to the back side (the side farther from the main nozzles 11 and 12) than the innermost side holes 46 and 42 connected to the large diameter portions 31a and 32a. By doing so, the pressure loss is reduced.

  The horizontal holes 41 and 42 extend from the large diameter portion 32 a of the vertical hole 32 in the short direction of the body portion 2 (left direction in FIG. 1), and the horizontal holes 43 and 44 are the small diameter portion 31 b of the vertical hole 31. It extends from left to right. The horizontal holes 45 and 46 extend in the right direction from the large diameter portion 31 a of the vertical hole 31, and the horizontal holes 47 and 48 extend in the right direction from the small diameter portion 32 b of the vertical hole 32.

  The horizontal holes 41, 42, 45, 46 have a large diameter, are provided one by one, and are located at the center of the body portion 2 in the thickness direction. The hole diameters of the horizontal holes 41, 42, 45, 46 are the same as or slightly smaller than the large-diameter portions 31a, 32a (for example, about 50 to 100%).

  The horizontal holes 43, 44, 47, 48 have a small diameter, and two each are provided in parallel. The hole diameters of the horizontal holes 43, 44, 47, and 48 are substantially the same as the hole diameters of the vertical hole small diameter portions 31b and 32b. The lateral holes 43 and 44 are provided on the upper surface side of the body portion 2, and the lateral holes 47 and 48 are provided on the lower surface side of the body portion 2.

  The horizontal holes 43 and 44 are provided in a positional relationship that does not overlap with the horizontal holes 47 and 48. That is, the horizontal hole 48 is disposed on the lower surface side of the body portion 2 between the horizontal holes 43 and 44. Further, a lateral hole 47 is disposed on the lower surface side of the body portion 2 at a position shifted from the lateral hole 43 toward the main nozzles 11 and 12. The interval between the sub nozzles 23 and 24 is the same as the interval between the sub nozzles 27 and 28.

  On one short side surface of the body portion 2, there are provided recessed holes 51 and 52 which are fitted to the base end sides of the main nozzles 11 and 12 and fixed by brazing or the like. The base side of the sub nozzles 21 to 24 is fitted on the left side surface of the body portion 2 and provided with recessed holes 53 to 56 fixed by brazing or the like, and the sub nozzles 25 to 28 are provided on the right side surface. Concave holes 57 to 60 are provided which are fitted on the base end side and fixed by brazing or the like. Each of the concave holes 51 to 60 is located at the center of the body portion 2 in the thickness direction.

  The vertical hole 31 faces the deep bottom surface of the concave hole 51, the vertical hole 32 faces the deep bottom surface of the concave hole 52, the horizontal hole 41 faces the deep bottom surface of the concave hole 53, and the horizontal hole 42 faces the deep bottom surface of the concave hole 54. The horizontal hole 43 faces the deep bottom surface of the concave hole 55, the horizontal hole 44 faces the deep bottom surface of the concave hole 56, the horizontal hole 45 faces the deep bottom surface of the concave hole 57, and the horizontal hole 46 is the deep bottom of the concave hole 58. The horizontal hole 47 faces the back bottom surface of the recessed hole 59, and the lateral hole 48 faces the deep bottom surface of the recessed hole 60. The two horizontal holes 43, 43 or 44, 44 face only the upper half of one concave hole 55 or 56, and the two horizontal holes 47, 47 or the horizontal holes 48, 48 are one concave hole. It faces only the lower half of 59 or 60.

  The header 1 is incorporated in a temperature control mat, and the first main nozzle 11 is connected to the outgoing hot water supply pipe (outward main pipe) from the hot water heater, and the second main nozzle 12 is connected to the hot water heater. Return side main piping is connected.

  In addition, one end (outward side) of each of the four hot water circulation pipes of the temperature control mat is connected to the sub nozzles 25, 26, 23, and 24, and the other end (return side) is connected to the sub nozzles 21, 22, and 27, respectively. , 28.

  When the hot water supply side main pipe is connected to the first main nozzle 11 and the return side main pipe is connected to the second main nozzle 12, the forward side fluid flow path is formed by the vertical hole 31 and the horizontal holes 45, 46, 43, 44. Is configured. Further, the return side fluid flow path is constituted by the vertical hole 32 and the horizontal holes 41, 42, 47, 48.

  Accordingly, the hot water supplied to the inner hole 11a of the first main nozzle 11 is sent to the sub nozzles 25, 26, 23, and 24 through the vertical hole 31 and the horizontal holes 45, 46, 43, and 44, and is supplied to the hot water pipe. Supplied. The return water from the hot water pipe reaches the second main nozzle 12 from the sub nozzles 21, 22, 27, 28 through the horizontal holes 41, 42, 47, 48 and the vertical holes 32. Note that when the second main nozzle 12 is the forward side and the first main nozzle 11 is the return side, the flow is the reverse of the above.

  In this embodiment, the main nozzles 11 and 12 side of the vertical holes 31 and 32 are large diameter portions 31a and 32a, and the hole diameters of the vertical holes 31 and 32 are large on the main nozzles 11 and 12 side where the flow rate is large. Therefore, the water pressure loss is small. Moreover, since the horizontal holes 45, 46, 41, and 42 facing the large diameter portions 31a and 32a have a large hole diameter, the water passage pressure loss is small. The back side of the vertical holes 31 and 32 are small-diameter portions 31b and 32b. However, since the amount of water flow is smaller than that of the main nozzles 11 and 12, the water pressure loss is small.

  In this embodiment, the horizontal holes 43, 44, 47 and 48, whose water channel length is longer than the horizontal holes 45, 46, 41 and 42, are small in diameter, but two each are provided. Therefore, the water pressure loss of the lateral holes 43, 44, 47, 48 is also small. Further, since the upper surface side horizontal holes 43 and 44 and the lower surface side horizontal holes 47 and 48 are arranged so as not to overlap, even if the diameter of each of the horizontal holes 43 and 44 is increased, the upper surface side The distance between the horizontal holes 43 and 44 and the lower surface side horizontal holes 47 and 48 is large, and the strength of the header is large. In addition, a manufacturing error that the horizontal holes communicate with each other at the time of manufacturing (at the time of drilling the horizontal holes) is eliminated, and the manufacturing cost is reduced.

  In this embodiment, a screw hole 63 made of a through hole in the thickness direction is provided at the center of the base portion 2. By screwing a screw into the floor or the like through the screw hole 63, the header 1 can be fixed to the floor or the like.

<Headers of FIGS. 4 to 6>
In the header 1 of the above embodiment, the body portion 2 is a single piece. However, as shown in FIG. 4, the head halves 1A and 1B are divided into two half body portions 2A and 2B. The vertical holes 31 and 32 of the bodies 1A and 1B may be communicated with each other by a joint pipe 64. In this embodiment, the joint pipe 64 is fixed to the body half halves 2A and 2B by brazing.

  Instead of using the joint pipe 64, nozzles 71 to 74 are attached to the exposed portions of the vertical holes 31 and 32 of the body portions 2D and 2C as in the header halves 1D and 1C of FIG. The nozzles 72 and 74 may be connected with synthetic resin tubes 75 and 76, respectively.

  Further, as shown in FIG. 6, head quadrants 1E and 1F having a shape obtained by further dividing the head half 1D of FIG. 5 into half may be used. Nozzles 71 and 72 are fixed to the body part quadrants 2E and 2F, respectively, and the nozzles 71 and 73 and the nozzles 72 and 74 are connected by synthetic resin tubes 75 and 76, respectively, as in FIG. ing.

  Other configurations in FIGS. 4 to 6 are the same as those in FIGS. 1 to 3, and the same reference numerals indicate the same parts. The same effects as those shown in FIGS. 1 to 3 can be obtained by the headers shown in FIGS.

  The temperature control mat uses a substrate made of a foamed synthetic resin such as foamed polystyrene. As described in the background art section, a groove is provided on the upper surface of the substrate, and a hot water pipe is routed in the groove. Aluminum foil is stuck on the upper surface of the substrate.

  In a temperature control mat formed by arranging a plurality of substrates in parallel, the substrates are usually folded and transported and sold so that the substrates are overlapped with each other. During this folding, the upper surface of the substrate may be folded in a mountain. When folding in this way, it is necessary to divide the aluminum foil along the abutting portion between the substrates. In order to easily divide the aluminum foil, it is preferable that the corner edge of the upper surface of the substrate is a sloped slope 81 as in the substrate 80 of FIG. In this case, the aluminum foil 82 can be easily divided by pressing a tool 84 such as a spatula against the aluminum foil 82. By moving the spatula along the groove between the inclined surfaces 81, 81, the aluminum foil 82 can be easily divided linearly. The spatula is not sharp as it cuts the aluminum foil 82, but simply pushes it through, so that the substrate 80 is not accidentally cut.

<Different embodiments>
In the above-described embodiment, the upper side lateral holes 43 and 44 and the lower side lateral holes 47 and 48 are arranged so as not to overlap, but the overlapping positional relationship may be adopted. That is, the lateral hole 47 may be disposed below the lateral hole 43 and the lateral hole 48 may be disposed below the lateral hole 44.

  In the above embodiment, two horizontal holes 43, 44, 47, 48 are provided, but one each may be provided. Moreover, when it is set as one horizontal hole in this way, it is good also as a horizontal hole of bowl-shaped cross-sectional shape.

  In the above embodiment, four sub nozzles are provided on the left and right, respectively, but two, three, five, or more may be provided.

  Each of the above embodiments is an example of the present invention, and the present invention may be configured other than illustrated.

DESCRIPTION OF SYMBOLS 1 Header 1A, 1B, 1C, 1D Head half 1E, 1F Head quarter 2 Body part 2A, 2B Body part half 2E, 2F Body part quarter 11, 11 Main nozzle 11a, 12a Large diameter part 11b, 12b Small diameter part 21-28 Sub nozzle 31, 32 Vertical hole 41-48 Horizontal hole 71-74 Nozzle 80 Substrate 81 Slope 82 Aluminum foil 84 Tool

Claims (6)

A header for distributing fluid from a forward main pipe connected to a fluid source to a plurality of forward sub pipes, and collecting fluid from a plurality of return side sub pipes in a return main pipe,
A plate-shaped body,
A forward main pipe connection port protruding from the body so that the forward main pipe is connected;
A return side main pipe connection port protruding from the body so that the return side main pipe is connected;
A plurality of forward side auxiliary pipe connection ports protruding from the body portion so that the outgoing side auxiliary pipe is connected;
A plurality of return side sub-pipe connection ports protruding from the body portion so that the return side sub-pipe is connected;
A forward-side fluid flow path provided in the body portion and communicating with the forward-side main pipe connection port and each forward-side sub-pipe connection port;
A return-side fluid flow path communicating the return-side main pipe connection port and each return-side sub-pipe connection port;
In a header with
The forward side main pipe connection port side of the forward side fluid flow path and the return side fluid flow path is a large diameter part, and the far side farther than that is a small diameter part having a smaller diameter than the large diameter part, Header to be used. In claim 1, the body portion is a rectangular shape having a longitudinal direction and a transverse direction,
The forward side main pipe connection port and the return side main pipe connection port are provided on one short side surface of the body part, and the forward side sub pipe connection port and the return side sub pipe connection port are provided on both long side surfaces of the body part. Each is provided with a plurality,
The forward-side fluid flow path includes a vertical hole extending in the longitudinal direction of the body part, and a horizontal hole that communicates the vertical hole and the forward-side auxiliary pipe connection port. A vertical hole extending in the direction, and a horizontal hole communicating the vertical hole and the return side auxiliary pipe connection port,
The forward side sub piping connection port on the forward side main pipe connection port side communicates with the large diameter part of the vertical hole of the forward side fluid flow path through a horizontal hole, and returns to the large diameter part of the vertical hole of the return side fluid flow path. The return side secondary pipe connection port on the side main pipe connection port side communicates with the side hole,
The forward side secondary pipe connection port far from the forward side main pipe connection port communicates with the vertical hole small diameter part of the forward side fluid flow path via a horizontal hole, and The return side sub-pipe connection port on the side far from the return side main pipe connection port communicates via a horizontal hole, and the forward side sub-pipe connection port and the small-diameter portion are connected to the large-diameter portion of the vertical hole of the forward-side fluid flow path. Return side sub-pipe connection port connected to the large-diameter portion of the return-side fluid flow path and return-side sub-pipe connection to the small-diameter portion. A header characterized in that it is arranged on the side of the body part opposite to the mouth. In claim 2, the small-diameter portion of the forward-side fluid flow path and the lateral hole continuous therewith are provided on the side close to one surface of the body portion,
A header characterized in that the small-diameter portion of the return-side fluid flow path and the lateral hole connected thereto are provided on the side close to the other surface of the body portion.   In Claim 3, the horizontal hole connected to the small diameter part of the forward side fluid flow path and the horizontal hole connected to the small diameter part of the return side fluid flow path are provided in an arrangement relationship that does not overlap in the thickness direction of the body part. A header characterized by   5. The large-diameter portion of the vertical hole of each of the forward fluid flow path and the return fluid flow path extends further to the deeper side than the innermost horizontal hole connected thereto. A header characterized by A substantially rectangular substrate having a pipe placement groove and a header placement space on the plate surface;
The header according to any one of claims 1 to 5, disposed in the space;
A temperature control mat including a fluid circulation pipe connected to the sub pipe connection port of the header and routed in the groove.

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