JPH0239122Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a floor heating panel, and more particularly, to a floor heating panel in which a branch passage through which a heating fluid passes is formed in a panel room.

<Conventional technology> Generally, as shown in Figs. 5 and 6, underfloor heating panels have hot water, etc. in a panel chamber 1A of a rectangular panel body 1 made of synthetic resin, metal, etc. with a thickness of about 10 mm. Inflow chambers 2a, 2b and outflow chamber 3 for heating fluid
A, 3b are provided on the end side, and the inflow chambers 2a, 2b and the outflow chambers 3a, 3b are communicated by a plurality of divided channels 4, and are used by laying them on a predetermined floor. An inlet 6 for heating fluid faces the inlet chamber 2a of one panel chamber 1a partitioned by a partition wall 5 provided in the panel body 1, and is connected to the inlet 6 via a conduit (not shown). The heated fluid from the heat source is pumped into the inflow chamber 2.
a, and then branched to each branch channel 4 for predetermined floor heating, and then passed through the outflow chamber 3a to the similar inflow chamber 2 of the other adjacent panel room 1b.
flows into b. The heating fluid is then diverted to the branch channel 4 to perform floor heating in the same manner as described above, and the heated fluid flows out to the outflow chamber 3b, is returned to the heat source through the outlet 7 facing the outflow chamber 3b, and is used for circulation.

<Problems to be solved by the invention> However, since the branch channels 4 formed in the panel chambers 1a and 1b all have the same cross-sectional area and are arranged regularly with the same spacing, the inlet 6
A phenomenon occurs in which a large amount of the heated fluid that flows into the inlet chamber 2a flows into the branch channel 4 near the inlet 6, and the amount of the heated fluid flows into the branch channel 4 farther from the inlet 6 and gradually decreases. Therefore, there is a problem that the heating fluid does not flow uniformly throughout the panel body 1, and a uniform heating distribution cannot be obtained, resulting in poor floor heating effects.

The object of this invention is to provide a floor heating panel that does not have the above-mentioned problems.

<Means for solving the problem> In order to solve this problem, this invention is based on a floor heating panel in which a branch passage through which a heating fluid passes is formed in the panel room, and in which a branch passage near the heating fluid inlet is installed. It is characterized in that the cross-sectional area is minimized, and the cross-sectional area increases as the branch channels are farther away, so that the flow rate of the heating fluid flowing through each branch channel is approximately equal between the branch channels.

<Example> Hereinafter, the floor heating panel of this invention will be explained based on FIGS. 1 to 4. Note that the same parts as in the conventional example are given the same reference numerals and the description thereof will be omitted.

(1) First embodiment (Figs. 1 and 2) A plurality of partition walls 8 provide branch channels 9, 9a, 9b, and 9c between the inflow chamber 2a and outflow chamber 3a of the heated fluid in the panel chamber 1a. The sections are formed, and the sizes of these cross-sectional areas are gradually increased with the branch channel 9 being the smallest. The branch channel 9 with the smallest cross section is located closest to the inlet (heated fluid inlet) 6, and the branch channels 9a, 9b, and 9c are located further away from the inlet 6 in that order. That is, inflow chamber 2
An entrance 6 is facing on one side of a, and
On the other side, the end of the branch channel 9 with the smallest cross section is opened closest to the inlet 6, and the ends of the branch channels 9a, 9b, 9c are opened successively farther apart. Therefore, from the inlet 6, the inflow chamber 2a
Diversion channel 9 through which the heating fluid flows most easily
has the smallest cross-sectional area, and becomes wider as it gets farther away, making it easier for the heating fluid to flow in sequentially.
b, 9c, and the panel chamber 1a is evenly heated. Thereafter, the heating fluid enters the inflow chamber 2b of the panel chamber 1b from the outflow chamber 3a, and thereafter, in the same manner as described above, the heating fluid flows through the panel chamber 1b and is evenly heated, and is discharged from the outlet 7 and returned to the heat source side. be done.
Note that it is desirable that the opening cross-sectional area of the branch channel of the panel chamber 1b also be increased sequentially from the inflow side, similarly to the panel chamber 1a.

(2) Second embodiment (Figures 3 and 4) A plurality of partition walls 10 are provided between the inflow chamber 2a and the outflow chamber 3a of the panel chamber 1a to provide branch channels 11 and 11.
a, 11b, 11c are formed into sections, and the branch channel 11
The cross-sectional areas of a and 11b are equal, and the branch channel 1
The cross-sectional areas of 1 and 11c are equal, and the branch channel 1
It is formed larger in cross-sectional area than the panel chambers 1a and 11b, and is symmetrical with respect to the center line of the panel chamber 1a. And a branch flow path 11a with a small cross-sectional area,
An inlet 6 is located approximately in the middle of 11b. That is, the inlet 6 faces the center position on one side of the inflow chamber 2a, and the branch channels 11a and 11b with small cross-sectional areas are arranged toward the center on the other side.
Branch channels 11, 11 with large cross-sectional areas are provided on both sides of these channels.
The ends of c are open. Therefore, as in the case of the previous embodiment, the heating fluid flows almost equally into the branch channels 11, 11a, 11b, and 11c, and the panel chamber 1a is heated evenly. Subsequently, the heating fluid moves to the panel chamber 1b via the outflow chamber 3a and the inflow chamber 2b, uniformly heats the panel chamber 1b in the same manner as described above, and is discharged from the outlet 7 and returned to the heat source.

<Effects of the invention> As is clear from the above explanation, according to this invention, the cross-sectional area of the branch channels near the heated fluid inlet is minimized, and the cross-sectional area is increased as the branch channels are farther away, so that the flow through each branch channel is minimized. Since the flow rate of the heating fluid is configured to be almost equal between the branch channels, the heating fluid flows evenly into the panel body through the inflow chamber, so heating is performed uniformly and a stable floor heating effect is achieved. It will be done.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention, and Figure 1 is a partially cutaway plan view of a floor heating panel of the first embodiment;
2 is an enlarged sectional view taken along the - line in FIG. 1, FIG. 3 is a partially cutaway plan view of the floor heating panel of the second embodiment, and FIG. FIG. 5 is a partially cutaway plan view of a conventional floor heating panel, and FIG. 6 is an enlarged sectional view taken along the line - in FIG. 5. 1...Panel body, 1a...Panel chamber, 2a,
2b...Inflow chamber, 6...Inlet (heated fluid inlet),
7... Outlet, 9, 9a-9c... Branch flow path, 11,
11a to 11c... Branch channels.

Claims (1)

[Scope of Claim for Utility Model Registration] In a floor heating panel in which a branch passage through which heating fluid passes is formed in the panel room, the cross-sectional area of the branch passage near the heating fluid inlet is minimized, and the cross-sectional area of the branch passage further away from the heating fluid inlet is made smaller. A floor heating panel characterized in that the flow rate of heating fluid flowing through each branch channel is substantially equal between the branch channels.