JP2010255956A - Header and temperature control mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a header reducing water flowing pressure loss in a fluid flow passage and a temperature control mat including the header. <P>SOLUTION: Main nozzles 11, 12 are protruded from projections 3, 4 on the lower face of a header body 2 of the header 1. Auxiliary nozzles 21-24 are protruded from one side face of the header body 2. The main nozzle 11 is communicated with the auxiliary nozzles 21, 23 via a vertical flow passage hole 31 and lateral flow passage holes 41, 43. The main nozzle 12 is communicated with the auxiliary nozzles 22, 24 via a vertical flow passage hole 32 and lateral flow passage holes 42, 44. The hole size of the vertical flow passage hole 31 distant from the auxiliary nozzles 21-24 is set large. Thus, this reduces water flowing pressure loss. <P>COPYRIGHT: (C)2011,JPO&INPIT

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 floors, walls, ceilings and the like of a room in a building, and more particularly, a substrate provided with a groove for piping arrangement on a plate surface, and the substrate. The present invention relates to a temperature control mat including a header arranged so as to face the side surface of each of the pipes and a fluid circulation pipe connected to each auxiliary 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 Laid-Open Patent Publication No. 9-269135 (Patent Document 1) describes a temperature control mat configured such that a plurality of hot water circulation pipes are routed and the hot water circulation pipes are circulated through each of the hot water circulation pipes.

  FIG. 9 is a plan view of the temperature control mat described in FIG. The temperature control mat 100 has a groove extending on the upper surface of a substantially rectangular substrate 101, and two hot water circulation pipes (hereinafter abbreviated as hot water pipes) 102 and 103 are routed through the groove. Yes. A header arrangement space 101a is provided at the center of the longitudinal side of the substrate 101, and a header 104 is arranged in the header arrangement space 101a.

  Both end sides of each of the hot water pipes 102 and 103 are connected to sub pipe connection ports (not shown) on the side surfaces of the header 104, respectively.

  The header 104 includes a forward main piping connection port and a return main piping connection port (not shown), and each connection port is connected to the heat source device 107 via the forward main piping 105 and the return main piping 106, respectively. ing. Hot water from the heat source device 107 is fed to the header 104 via the forward main pipe 105 and distributed to the hot water pipes 102 and 103. The hot water flowing through the hot water pipes 102 and 103 and returning to the header 104 is returned to the heat source device 107 through the return side main pipe 106. In this way, the warm water is circulated through the hot water pipes 102 and 103, 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.

  In Patent Document 1, the forward main pipe 105 and the return main pipe 106 are connected to the side surface of the header 104. A hole penetrating under the floor is provided in the floor near the header 104. The forward main pipe 105 and the return main pipe 106 that have been routed through the underfloor space are drawn to the floor through this hole, and then bent at a small radius of curvature along the floor surface. It is connected to the main pipe connection port (not shown) on the side. When the main pipes 105 and 106 are bent in this way, care must be taken so that the main pipes 105 and 106 do not buckle.

  Japanese Patent Application Laid-Open No. 2004-162925 (Patent Document 2) discloses a hole that projects a main pipe connection port from the lower surface of the header and penetrates the frame floor in order to prevent buckling of the forward main pipe and the return main pipe. The main pipe connection port is inserted into the main pipe connection port, and the main pipe is connected to the lower end of the main pipe connection port. In this way, it is not necessary to bend the main pipe with a small radius of curvature and connect it to the header, so that the main pipe does not buckle.

  6 is a plan view showing an example of the header of Japanese Patent Application Laid-Open No. 2004-162925, FIG. 7 is a sectional view taken along line VII-VII in FIG. 6, and FIG. 8 is a sectional view taken along line VIII-VIII in FIG. is there.

  A forward side connection pipe (outward side main pipe connection port) 62 and a return side connection pipe (return side main pipe connection port) 64 project downward from the lower surface of the rectangular header body (body portion) 61 of the header 60. Has been. From the left side of the header body 61, a forward connection pipe (forward secondary pipe connection port) 66 and a return side connection pipe (return side secondary pipe connection port) 68 project, and from the right side the forward connection pipe (forward side secondary pipe). A piping connection port 70 and a return side connection pipe (return side sub piping connection port) 72 are provided in a projecting manner. In the header main body 61, a flow path hole 80 for communicating the outgoing side main piping connection port 62 and the outgoing side auxiliary piping connection ports 66, 70, a return side main piping connection port 64, a return side auxiliary piping connection port 68, A flow path hole 82 that communicates with 72 is provided. The channel hole 80 extends obliquely from the upper left to the lower right in FIG. 6, and the channel hole 82 extends obliquely from the upper right to the lower left in FIG.

JP 9-269135 A JP2004-162925

  In the header 60 of Patent Document 2, the flow path holes 80 and 82 extend so as to cross in an X shape. For this reason, the hole diameters of the flow path holes 80 and 82 are smaller than half the plate thickness of the header main body 61, so that the water pressure loss of the flow path holes 80 and 82 is large.

  An object of the present invention is 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 the plurality of forward sub pipes and collects the fluid from the plurality of return side sub pipes to the return main pipe. In the header, the forward main pipe connection port projecting from one main plate surface of the body part and the return side main pipe are connected so that the plate-like body part and the forward main pipe are connected. A plurality of forward side auxiliary pipes protruding from the longitudinal side surface of the body part so that the return side main pipe connection port protruding from the one main plate surface of the body part and the outgoing side auxiliary pipe are connected to each other A plurality of return side sub-pipe connection ports projecting from the longitudinal side surface of the body part so that the connection side and the return side sub-pipe are connected; and the forward side main pipe connection provided in the body part Outward longitudinal channel that is connected to the mouth and extends substantially parallel to the longitudinal side surface And a forward side lateral flow path hole that is provided in the body portion and communicates with the forward side vertical flow path hole and each forward side auxiliary pipe connection port and extends in a direction substantially orthogonal to the forward side vertical flow path hole. A return-side longitudinal flow path hole provided in the body portion and connected to the return-side main pipe connection port and extending substantially parallel to the longitudinal side surface, and the return-side longitudinal flow provided in the body portion. A return side lateral flow path hole that communicates with the return hole and each return side sub pipe connection port and extends in a direction substantially orthogonal to the return side vertical flow path hole, and each forward side sub pipe connection port and return side The sub piping connection port is provided on the same longitudinal side surface, and one of the forward side vertical flow channel hole and the return side vertical flow channel hole is separated from the longitudinal side surface than the other. is there.

  The header of claim 2 is characterized in that, in claim 1, the diameter of the one longitudinal channel hole is 30 to 95% of the thickness of the body portion.

  The header according to claim 3 is characterized in that, in claim 1 or 2, the forward side auxiliary pipe connection port and the return side auxiliary pipe connection port are alternately arranged in the longitudinal direction of the longitudinal side surface. is there.

  The header according to claim 4 is provided with projections at two locations on the one main plate surface of the body part according to any one of claims 1 to 3, and each of the projections is inserted with a connection port. A hole is provided, and the forward side main pipe connection port is fixedly inserted into the connection port insertion hole of one convex portion, and the return side main pipe connection port is connected to the connection port insertion hole of the other convex portion. Is inserted and fixed.

  The header of claim 5 is characterized in that, in claim 4, the maximum diameter or the maximum diagonal length of the convex portion is 20 mm or less.

  The temperature control mat according to claim 6 is provided with a groove for pipe installation on a plate surface, a substrate in which both ends of the groove face one place on the side surface of the substrate, and a longitudinal side face at the one place on the substrate end face. The header according to any one of claims 1 to 5, which is disposed so as to face each other, and a fluid circulation pipe connected to the auxiliary pipe connection port of the header and routed in the groove. Is.

  In the header of the present invention and the temperature control mat equipped with this header, the longitudinal flow path hole on the side farther from the side surface of the body part provided with the auxiliary pipe connection port is a large-diameter hole near the body part plate thickness. be able to. In other words, the far-side vertical channel hole does not intersect with the near-side vertical channel hole or each horizontal channel hole, so that the hole diameter can be increased. Thereby, the water flow pressure loss of the fluid flow path can be reduced.

  The hole diameter of the far side longitudinal flow path hole can be increased to, for example, about 30 to 95% of the plate thickness of the body portion.

  When hot water is allowed to flow as a fluid to the header of the present invention, hot water having a high temperature flows through the outgoing side sub-pipe connection port, and hot water having a low temperature due to heat dissipation flows through the return side sub-pipe connection port. For this reason, in the vicinity of the outgoing side auxiliary pipe connection port, the temperature becomes higher than in the vicinity of the return side auxiliary pipe connection port, and thermal expansion increases. When the forward side auxiliary pipe connection port and the return side secondary pipe connection port are alternately arranged in the longitudinal direction of the longitudinal side surface as in the header of claim 3, the vicinity of the longitudinal side surface provided with the forward side secondary piping connection port Temperature unevenness is reduced, and local thermal expansion is suppressed.

  In the header of the present invention, the main pipe connection port has a nozzle shape, the main pipe connection port is inserted into the insertion hole provided in the body portion and brazed to fix the main pipe connection port to the body portion. There is. In this case, as in claim 4, convex portions may be provided at two locations on the body part plate surface, and insertion holes may be provided in the convex portions. Thus, when the insertion hole is provided in the convex portion, the insertion hole is prevented from overlapping with the longitudinal flow path hole in the body portion, and the diameter of the longitudinal flow path hole can be increased. Further, the depth of the insertion hole can be made sufficiently large, and the fixing strength of the main pipe connection port to the body portion can be made sufficiently high.

  In general, the diameter of a hole drilled in the floor in order to draw the hot water pipe under the floor is 20 mm. Therefore, as described in claim 5, by setting the maximum diameter or maximum diagonal length of the convex portion to 20 mm or less, the convex portion can be inserted into the floor hole and the lower surface of the body portion can be overlapped on the floor surface without a gap. Become.

It is a top view of the header concerning an embodiment. It is sectional drawing which follows the II-II line of FIG. It is sectional drawing which follows the III-III line of FIG. It is a perspective view from the lower part of the header of FIG. It is a top view of the temperature control mat which concerns on embodiment. It is a top view of the conventional header. It is sectional drawing which follows the VII-VII line of FIG. It is sectional drawing which follows the VIII-VIII line of FIG. It is a top view of the conventional temperature control mat.

  Hereinafter, the header 1 and the temperature control mat according to the embodiment will be described with reference to FIGS. 1 to 5. In FIG. 1, the rectangular plate-like body portion 2 is shown with its long side in the vertical direction, and 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, and has a rectangular plate-like body portion 2 and a first main nozzle 11 serving as a first main pipe connection port protruding from the body portion 2. The second main nozzle 12 as a second main pipe connection port and the first to fourth sub nozzles 21 to 24 as sub pipe connection ports are provided.

  As shown in FIG. 2, the header 1 is installed so that the lower surface of the body portion 2 is in contact with the floor slab 5 of the building frame, and is screwed through a screw insertion hole 7 that penetrates the body portion 2 in the thickness direction. It is fixed to the floor slab 5 by driving it into the floor slab 5.

  Two convex portions 3 and 4 are provided on the lower surface of the body portion 2. Main nozzles 11, 12 project from the convex portions 3, 4 in a vertically downward direction with respect to the lower surface of the body portion 2. The main nozzles 11 and 12 are inserted into the hole 6 of the floor slab 5 from above. At this time, the convex portions 3 and 4 enter the holes 6 and 6, respectively. The sub nozzles 21 to 24 are provided so as to project from one side surface (the right side surface in FIG. 1) in the longitudinal direction of the body portion 2. In FIG. 2, the hole 6 into which the convex part 4 enters is not shown.

  Each of the main nozzles 11 and 12 and the sub nozzles 21 to 24 includes inner holes 11a, 12a, and 21a to 24a penetrating in the respective axial directions. The sub nozzles 21 to 24 have a bowl-like outer peripheral surface so that a resin hot water pipe is inserted into the outer fitting shape.

  In the body portion 2, a longitudinal flow path hole 31 that communicates with the inner hole 11 a of the first main nozzle 11 via the communication hole 3 b, and a communication hole 4 b that communicates with the inner hole 12 a of the second main nozzle 12. The longitudinal channel hole 32 that communicates, the first lateral channel hole 41 that communicates with the inner hole 21a of the first sub nozzle 21, and the second lateral channel hole that communicates with the inner hole 22a of the second sub nozzle 22. 42, a third lateral flow path hole 43 communicating with the inner hole 23a of the third sub nozzle 23, and a fourth lateral flow path hole 44 communicating with the inner hole 24a of the fourth sub nozzle 24 are provided. Yes.

  The longitudinal flow path holes 31 and 32 extend in the longitudinal direction of the body portion 2. The longitudinal channel hole 31 is located on the side farther from the sub nozzles 21 to 24 than the longitudinal channel hole 32, that is, in the vicinity of the left side of FIG. It is located near the right side of the figure.

  The transverse passage holes 41 and 43 are extended from the longitudinal passage hole 31 in the short direction of the body portion 2 (right direction in FIG. 1), and the transverse passage holes 42 and 44 are directed rightward from the longitudinal passage hole 32. It is extended to. The hole diameter of the vertical flow path hole 31 is larger than the hole diameter of the vertical flow path hole 32, and 30 to 95%, especially 50 to 90% of the thickness of the body portion 2 is preferable.

  The longitudinal flow path hole 31 is provided near the middle in the thickness direction (vertical direction) of the body portion 2. The first and third horizontal flow path holes 41 and 43 connected to the vertical flow path hole 31 are provided on the upper surface side of the body portion 2. The vertical flow path hole 32 and the second and fourth horizontal flow path holes 42 and 44 connected to the vertical flow path hole 32 are provided on the lower surface side of the body portion 2.

  The convex portions 3 and 4 on the lower surface of the body portion 2 are provided with concave holes 3a and 4a fitted to the base end sides of the main nozzles 11 and 12 and fixed by brazing or the like. Communication holes 3b and 4b for communicating the main nozzles 11 and 12 with the longitudinal flow path holes 31 and 32 are formed from the bottom surfaces of the recessed holes 3a and 4a. On the right side surface of the body part 2, the base end sides of the sub nozzles 21 to 24 are fitted, and recessed holes 21 h to 24 h fixed by brazing or the like are provided. Each of the concave holes 21h to 24h is located at the center of the body portion 2 in the thickness direction.

  The longitudinal flow path holes 31 and 32 are formed by drilling in the longitudinal direction from one short side surface of the body portion 2 and then sealing the inlet side of the holes with plugs 31P and 32P. The horizontal flow path holes 41 to 44 are formed by drilling the concave holes 21h to 24h and then drilling from the back bottom surfaces of the concave holes 21h to 24h toward the vertical flow path holes 31 or 32.

  As shown in FIG. 5, the header 1 is assembled to the temperature control mat 100A so that the side surface having the sub nozzles 21 to 24 is in contact with the side surface of the temperature control mat 100A. Then, one end (outward side) of each of the hot water circulation pipes 102 and 103 of the temperature control mat 100A is connected to the sub nozzles 21 and 23, and the other end (return side) thereof is connected to the sub nozzles 24 and 22. .

  The temperature control mat 100A to which the header 1 is assembled in this way is placed on the floor slab 5 so that the main nozzles 11 and 12 protrude into the underfloor space through the holes 6 and 6 (FIG. 2) provided in the floor. An outgoing hot water supply pipe (outward main pipe) 105 from the hot water heater is connected to the first main nozzle 11, and a return main pipe 106 to the hot water heater is connected to the second main nozzle 12. The

  When the forward main pipe 105 is connected to the first main nozzle 11 and the return main pipe 106 is connected to the second main nozzle 12, the inner hole 11a, the communication hole 3b, the vertical flow path hole 31, and the horizontal flow path hole 41 and 43 constitute a forward fluid flow path. Further, the return side fluid flow path is constituted by the inner hole 12a, the communication hole 4b, the vertical flow path hole 32, and the horizontal flow path holes 42 and 44. That is, the hot water supplied to the inner hole 11a of the first main nozzle 11 is sent to the sub nozzles 21 and 23 via the vertical flow path holes 31 and the horizontal flow path holes 41 and 43, and is supplied to the hot water circulation pipes 102 and 103. Supplied. The return water from the hot water circulation pipes 102 and 103 reaches the second main nozzle 12 from the sub nozzles 24 and 22 through the horizontal flow path holes 44 and 42 and the vertical flow path hole 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 the header 1, as described above, the main nozzles 11 and 12 as main pipe connection ports are installed on the floor slab 5 so as to protrude into the underfloor space through the holes 6 and 6 provided in the floor. At this time, however, the convex portions 3 and 4 are dropped into the holes 6 and 6 as shown in FIG. Therefore, even if the convex portions 3 and 4 protrude from the lower surface of the header body 2, the header body 2 can be brought into close contact with the floor slab 5.

  In addition, as for the main nozzles 11 and 12, those lower end sides become the large diameter joint parts 11c and 12c, and the flange parts 11d and 12d are provided in the lower end. The connecting fittings 110 at the ends of the main pipes 105 and 106 made of resin tubes are inserted into the joint parts 11c and 12c and locked to the flange parts 11d and 12d by clips (not shown), whereby the main pipes 105 and 106 are connected. Are connected to the main nozzles 11 and 12. Although not shown, the main nozzles 11 and 12 are inserted into the holes 6 and 6 after the heat insulating material is wound.

  In this header 1, since the main pipes 105 and 106 are connected to the main nozzles 11 and 12 in the underfloor space, the curvature radius for bending the main pipes 105 and 106 becomes large, and the seats of the main pipes 105 and 106 are obtained. Bending is prevented. Moreover, in this header 1, since the hole diameter of the vertical flow path hole 31 is large, a water flow pressure loss is small.

  In this header 1, the concave portions 3a, 4a are provided with the concave holes 3a, 4a, and the upper ends of the main nozzles 11, 12 are inserted into the concave holes 3a, 4a and brazed. The depth of 4a is large, and the attachment strength of the main nozzles 11 and 12 to the header body 2 is large. And since the convex parts 3 and 4 are dropped in the holes 6 and 6 of the floor slab 5, the lower surface of the header main body 2 can be stuck to a floor surface. For this reason, the thickness of the part except the convex parts 3 and 4 of the header main body 2 can be made equivalent to the conventional type header which does not have the convex parts 3 and 4.

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

1,104 Header 2 Body 11,12 Main nozzle (main pipe connection port)
21-24 Sub nozzle (Sub piping connection port)
31, 32 Longitudinal channel hole 41-44 Horizontal channel hole 100, 100A Temperature control mat

Claims (6)

In the header for distributing the fluid from the forward main pipe connected to the fluid source to the multiple forward sub pipes and for collecting the fluid from the multiple return side sub pipes in the return main pipe,
A plate-shaped body,
A forward-side main pipe connection port protruding from one main plate surface of the body portion so that the forward-side main pipe is connected;
A return side main pipe connection port projecting from the one main plate surface of the body portion so that the return side main pipe is connected;
A plurality of forward side auxiliary pipe connection ports protruding from the longitudinal side surface of the body portion so that the outgoing side auxiliary pipe is connected;
A plurality of return side auxiliary pipe connection ports protruding from the longitudinal side surface of the body portion so that the return side auxiliary pipe is connected;
A forward-side longitudinal flow path hole provided in the body portion, connected to the forward-side main pipe connection port and extending substantially parallel to the longitudinal side surface;
A forward side lateral flow path hole provided in the body portion, communicating with the forward side vertical flow path hole and each forward side sub pipe connection port, and extending in a direction substantially orthogonal to the forward side vertical flow path hole;
A return-side longitudinal flow channel hole provided in the body portion, connected to the return-side main pipe connection port and extending substantially parallel to the longitudinal side surface;
A return side lateral flow path hole that is provided in the body portion, communicates with the return side vertical flow path hole and each return side sub-pipe connection port, and extends in a direction substantially orthogonal to the return side vertical flow path hole;
Each outgoing side auxiliary piping connection port and return side auxiliary piping connection port are provided on the same longitudinal side,
One of the forward side vertical flow path hole and the return side vertical flow path hole is further separated from the longitudinal side surface than the other.   2. The header according to claim 1, wherein the hole diameter of the one vertical flow path hole is 30 to 95% of the thickness of the body portion.   3. The header according to claim 1, wherein the forward side auxiliary pipe connection port and the return side auxiliary pipe connection port are alternately arranged in a longitudinal direction of the longitudinal side surface. In any one of Claims 1 thru | or 3, the convex part is provided in two places among the said one main plate surface of the said body part,
Connection holes are provided in each convex part,
The forward side main piping connection port is inserted and fixed in the connection port insertion hole of one convex portion, and the return side main piping connection port is inserted and fixed in the connection port insertion hole of the other convex portion. A header characterized by   The header according to claim 4, wherein the maximum diameter or the maximum diagonal length of the convex portion is 20 mm or less. A board is provided with a groove for piping arrangement, and both ends of the groove face one place on the side of the board; and
The header according to any one of claims 1 to 5, wherein the header is disposed such that the longitudinal side faces the one end of the substrate end surface;
A temperature control mat comprising: a fluid circulation pipe connected to the auxiliary pipe connection port of the header and routed in the groove.

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