JP2000346378A - Header unit for floor heating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance durability of a hot water producing apparatus by providing a bypass circuit having a motor three-way valve integrally between two headers so that heat carrier of relatively high temperature returned back to a return heat carrier head can be fed to a supply heat carrier header thereby lessening burden on the pump and boiler. SOLUTION: The header unit 100 for floor heating comprises a return heat carrier header 101 and a supply heat carrier header 102 each having a plurality of branch pipes 103 and a bypass circuit 120 comprising a T-shaped branch coupling 105, a motor three-way valve 104 and an elbow 107 is provided integrally between the headers 101, 102. The remaining connection opening of the T-shaped branch coupling 105 is coupled with an on/off valve (for return heat carrier) 106 and one connection opening of the motor three-way valve 104 is coupled with an on/off valve (for supply heat carrier) 108. When the return heat carrier has a relatively high temperature, it is introduced from the return heat carrier header 101 to the supply heat carrier header 102 through the bypass circuit 120.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a header unit for floor heating. More specifically, this is a header unit used when laying pipes for floor heating.The header, bypass circuit with electric three-way valve, and other accessories are integrated in the factory in advance to make work at the construction site efficient. The present invention relates to a header unit for floor heating that can be performed in a flexible manner.

[0002]

2. Description of the Related Art Conventionally, in order to improve the livability of a general house, an apartment house, a commercial building or a hotel, a high-temperature heat medium supplied from a hot water producing apparatus is branched by a floor heating header to form a floor heating header. Is supplied to a heat medium flow tube buried in a heat sink. Depending on the number of heat medium flow pipes, the floor heating headers may be combined as necessary, and may be installed on floors, walls, ceilings, and the like after other accessories are attached. The device and the heat medium flow pipe are connected. Since the temperature of the high-temperature heat medium supplied from the hot water production device to the heat medium circulation pipe via the heat medium circulation header decreases while circulating in the heat sink, the heat medium circulation pipe,
It is returned to the hot water production device via the heat medium return header in order, heated again, and used.

[0003] However, assembling the header for floor heating,
Attachment of accessories to the floor heating header one by one at the construction site is necessary for storage of multiple parts at the factory,
In addition to the need for strict management during transportation, construction, and the like, there are drawbacks that assembling work at the construction site requires a great deal of time and labor. In addition, since the above-described floor heating header is usually installed in a narrow space, it is difficult to assemble the floor heating header. In some cases, heat medium leakage due to insufficient sealing or the like may occur, and it is difficult to check for such heat medium leakage. Furthermore, since the overall size after assembling the floor heating header is uncertain, there has been a problem that dimensions cannot be clarified when designing a construction place.

In order to solve these disadvantages, Japanese Patent Laid-Open No.
Japanese Patent Publication No. 210380 discloses a header device for floor heating. At the factory, this floor heating header device is installed in advance at the factory, with an on-off valve and other accessories attached to the header, unitized, and the unitized unit is transported to the construction site to simplify the assembly work at the construction site. It is a thing. However, in this header device for floor heating, all the heat medium returned to the heat medium return header is
Returned to the hot water production equipment placed outdoors etc. and heated,
Thereafter, the hot water is supplied to the header for feeding the heat medium again, and an extra load is applied to a pump or a boiler of the hot water producing apparatus, and as a result, the life of the hot water producing apparatus is shortened.

[0005]

SUMMARY OF THE INVENTION In view of such circumstances, the present inventors have made intensive studies to provide a floor heating header unit which solves the above problems at once, and as a result, have completed the present invention. is there. The objects of the present invention are as follows. 1. To provide a floor heating header unit that does not impose an extra load on a hot water production device. 2. To provide a floor heating header unit capable of efficiently performing construction work on site.

[0006]

In order to solve the above-mentioned problems, according to the present invention, a high-temperature heating medium supplied from a hot-water producing apparatus is passed through a heating medium sending header to a plurality of outgoing heating mediums. In the floor heating header unit, which leads to the distribution pipe and returns the low-temperature heat medium returned via the plurality of return heat medium distribution pipes to the hot water production device via the heat medium return header, The two headers are formed in a long tubular shape, and a plurality of branch pipes with an on-off valve are formed along the length direction of each header, at right angles to the outer surface and at regular intervals, by the header and the plurality of branch pipes. An elbow, an electric three-way valve, and an on-off valve are sequentially connected to the end of the header for heating medium flow near the hot water production device, which is arranged so as to form a substantially flat surface. A T-shaped branch joint and an on-off valve are sequentially connected to the end, A header unit for floor heating, characterized in that both headers are communicated with each other via a bypass circuit formed by a joint, an electric three-way valve, and an elbow, and the headers are fixed to a mount in parallel with each other. I do.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The header unit for floor heating according to the present invention is composed of a header for returning and returning the heat medium, a branch pipe with an on-off valve, a T-shaped branch joint, an elbow, an electric three-way valve, a gantry, and other accessories. It becomes. The header unit for floor heating is arranged at an appropriate place such as a floor surface, a wall surface, a ceiling, and connected to a hot water production device and a heat medium distribution pipe arranged outdoors, etc., to supply a high-temperature heat medium supplied from the hot water production device. It has the function of leading to a plurality of outgoing heat medium flow pipes and guiding the low-temperature heat medium returned through the plurality of return heat medium flow pipes to the hot water production device. This floor heating header unit is entirely configured in a plane, and its size can be appropriately determined according to the size of the place where it is arranged, for example,
The size can be stored in a range of 55 cm × 55 cm × 20 cm.

[0008] The header for the heat medium going out of the header unit for floor heating according to the present invention branches the high-temperature heat medium supplied from the hot water producing device into a plurality of heat medium flowing pipes to a plurality of the going heat medium flow pipes. Performs the function of guiding. Further, the heat medium return header has a function of concentrating the low-temperature heat medium returned via the plurality of return heat medium flow pipes into one and guiding it to the hot water production device. The appearance of these headers is
It has a long cylindrical shape. Also, the cross-sectional shape when the header is cut at right angles to the length direction can be appropriately determined,
For example, it can be circular, square, hexagonal, etc.
Among them, a circle is preferable. The size of the header can be appropriately determined according to the amount of the heat medium to be circulated, the number of heat medium flow pipes to be connected, the size of the location of the floor heating header unit, the size of the attached accessories, and the like. it can. For example, in the case of a header having a circular cross section, the diameter is 2 cm to 7 cm.
The length can be selected from the range of 20 cm to 50 cm, respectively.

A plurality of branch pipes with an on-off valve are provided on the outer surface of each of the headers at right angles to the outer surface and at regular intervals along the length direction of each header. The tube and the tube are arranged so as to form a substantially flat surface. here,
“To form a plane” means header 101 (10
2) A plurality of branch pipes 103 arranged at regular intervals along the length direction extend in one direction from the outer surface of the header 101 (102), and the header 10 is viewed from the side.
1 (102) and the branch pipe 103 form a plane (see FIGS. 1 and 2 described later).

[0010] The branch pipe is for connecting a heat medium flow pipe. An on-off valve is mounted on the root side of these branch pipes, and the on-off valve can adjust the flow rate of the heat medium supplied from the header to the heat medium flow pipe. The size of the branch pipe is
It can be appropriately determined according to the size of the arrangement location of the header unit for floor heating, the length and diameter of the connected header, the diameter of the connected heat medium flow pipe, and the like. For example, the length is in the range of 3 cm to 5 cm. The diameter can be selected from the range of 1 cm to 2 cm, respectively. The interval between adjacent branch pipes can be appropriately determined according to the length of the header and the number of heat medium flow pipes to be connected, and can be selected, for example, from the range of 4 cm to 6 cm. The number of branch pipes to be provided can be appropriately determined according to the number of heat medium flow pipes to be connected.

An elbow, an electric three-way valve, and an on-off valve are connected in this order to an end of the header for feeding the heat medium on the side of the hot water producing apparatus. An outgoing channel is formed. The elbow is disposed and connected between the electric three-way valve and the header, and functions to guide the high-temperature heat medium supplied through the electric three-way valve to the header.

An electric three-way valve is connected to the elbow upstream of the heat medium passage. In this electric three-way valve, a sensor detects the temperature of the flowing heat medium, and a signal from the sensor opens and closes the internal valve. When the heat medium flowing through the bypass circuit described later is relatively high temperature, for example, 60 ° C. or higher, this heat medium is supplied directly to the heat medium flow header via the electric three-way valve. Is done. As the electric three-way valve, a commercially available three-way valve exhibiting the above functions can be used without limitation. The on-off valve is disposed and connected between the electric three-way valve and an external hot water production device, and has a function of adjusting the flow rate of the heat medium supplied to the electric three-way valve from the hot water production device arranged outdoors or the like.

A T-shaped branch joint and an on-off valve are connected in this order to the end of the heat medium return header on the side of the hot water production device,
A heat medium return flow path is formed by communicating from the heat medium return header to the on-off valve. The T-shaped branch joint is connected to the end of the heat medium return header on the hot water production device side, and the heat medium returned via the heat medium return header is transferred to the hot water production device side and the electric three-way valve side. And performs the function of branching in two directions. The on-off valve is disposed and connected between the T-shaped branch joint and an external hot water production device, and has a function of adjusting the flow rate of the heat medium returned to the hot water production device via the T-shaped branch joint. .

From the end of the T-shaped branch joint, which is located at right angles to the heat medium return flow path, a bypass circuit is formed at right angles to both headers. This bypass circuit is composed of a T-shaped branch joint, an electric three-way valve, and an elbow connected in this order by union. The heat medium returned to the heat medium return header at a relatively high temperature is supplied to the hot water production device. The function of supplying the heat medium directly to the header for the heat medium without returning to the above. When the heat medium flowing into the electric three-way valve has a relatively high temperature, the high-temperature heat medium is supplied to the heat medium flow header via the electric three-way valve. Without being heated by the device, it is again supplied to the outgoing heat medium flow pipe. The union connection connects two pipes via a union joint, and can be used for repairing a bypass circuit.

The two headers, on which the bypass circuit and other accessories are mounted, are fixed to the gantry while being parallel to each other. Here, “parallel to each other” means header 1
01 and a plane formed by the branch pipe 103 and a plane formed by the header 102 and the branch pipe 103 are parallel and separated at a constant interval (see FIG. 2 described later). In this stand, two headers assembled in a U-shape in appearance are simultaneously fixed to form one header unit. The header unit fixed by the gantry is handled as a single part, facilitating storage at the factory, transportation from the factory to the site, and installation work on floors, walls, ceilings, etc.

As an example of the structure of the gantry, a structure in which a long narrow metal sheet is bent to fix the two headers so as to protrude from other portions in a convex shape is preferable. For example, one is a slightly lower projection, the other is a higher projection, one header is fixed to a lower projection with a U-shaped band or U-shaped bracket, and the other header is a higher projection. By fixing the U-shaped band or the U-shaped bracket to the portion, a plane formed by the header and the plurality of branch pipes can be separated in parallel at a predetermined interval (see FIG. 2 described later). ).

At the ends of the two headers opposite to the hot water producing device, header plugs are attached so that the heat medium flowing into each header does not flow out from these ends. Further, the header for returning the heat medium can be provided with an air vent valve for venting the air in the header and in each pipe communicating with the header, and the header for returning to the heat medium has the heat medium flowing through the header. A pressure gauge for measuring pressure can be installed. Further, a test valve that functions at the time of water injection, drainage, pressure test, or the like can be provided in parallel with each branch pipe. The header, gantry, T-shaped branch joint, on-off valve, branch pipe, and the like can be prepared from a metal material such as steel, stainless steel, or copper. The heat medium flow pipe is made of a thermoplastic synthetic resin such as cross-linked polyethylene or polybutene, steel,
It can be prepared from a metal such as copper.

The floor heating header unit according to the present invention is constructed as follows. First, at the factory, assemble the header, electric three-way valve, elbow, T-shaped branch joint, gantry and other accessories, integrate them and fix them to the gantry,
Constructs a floor heating header unit with a bypass circuit. Next, the floor heating header unit is carried into the site, and is fixed to a predetermined location such as a floor surface, a wall surface, or a ceiling at the site. Finally, an external hot water production device and a heat medium flow pipe are connected to the header unit for floor heating, and the construction is completed.

When the header unit for floor heating according to the present invention is used, a high-temperature heat medium is introduced from a hot water producing device disposed outdoors or the like, and the high-temperature heat medium is supplied to an on-off valve, an electric three-way valve, an elbow, or the like. The heat medium is supplied to a predetermined location via the heat medium header and a plurality of the heat medium circulation pipes. The low-temperature heat medium returned to the heat medium circulation pipe for return from a predetermined location passes through the header for heat medium return, the T-shaped branch joint, and the on-off valve in this order, and is supplied to a hot water production device arranged outdoors or the like. Will be returned. When the returned heat medium is relatively hot, the heat medium is removed from the heat medium return header by T
It is led to a heat medium delivery header via a bypass circuit consisting of a U-shaped branch joint, an electric three-way valve, and an elbow, and is again supplied to the heat medium circulation pipe.

Hereinafter, the header unit for floor heating according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following description examples unless it exceeds the gist.

FIG. 1 is a front view of an example of a header unit for floor heating according to the present invention, FIG. 2 is a right side view of the header unit for floor heating shown in FIG. 1, and FIG. It is a front view of other examples of the header unit for floor heating concerning invention. FIG. 4 is a front view of an example of a conventional header device for floor heating.

The floor heating header unit 100 shown in FIGS. 1 and 2 includes a heat medium return header 101,
Heat medium delivery header 102, branch pipe 103, electric three-way valve 1
04, T-shaped branch joint 105, open / close valve (for heat medium return) 1
06, elbow 107, on-off valve (for heat medium flow) 108,
It comprises a gantry 109, an air release valve 110, a pressure gauge 111, a test valve 112, and a header plug 113. The bypass circuit 120 includes a T-shaped branch joint 105, an electric three-way valve 104, and an elbow 107. The T-shaped branch joint 105 and the electric three-way valve 104, and the electric three-way valve 104 and the elbow 107 are union-connected by a union joint 114.

As shown in FIG. 2, a header 101 for returning heat medium and a plurality of branch pipes 103 connected to the header 101 are provided.
A plane is formed when viewed from the side, and the heat medium delivery header 102 and the plurality of branch pipes 103 connected to the header 102 also form a plane when viewed from the side. This figure 2
As is clear from the figure, the gantry 109 is formed by bending a thin metal plate 109a and forming a slightly lower projection 109b and a higher projection 109b.
c is provided. Heat medium return header 10
1 has a slightly lower convex portion 109b and a header 1
02 is a U-shaped bracket 1 on the higher convex portion 109c.
09d.

The floor heating header unit 300 shown in FIG. 3 has substantially the same configuration as the floor heating header unit 100 shown in FIG. 1 and FIG. There are many branch pipes 303 attached, and many heat medium flow pipes can be connected. FIG. 4 shows an example of a conventional header device 400 for floor heating.
The floor heating header device 400 includes a heat medium return header 401, a heat medium discharge header 402, a branch pipe 403, a gantry 409, and an air release valve 410. A heat medium flow pipe is connected to the branch pipe 403 of the floor heating header device 400, but a bypass circuit including an elbow, an electric three-way valve, and a T-shaped branch joint is not mounted.

[0025]

As described above, the present invention has the following extremely advantageous effects, and its industrial utility value is extremely large. 1. The header unit for floor heating according to the present invention, since the bypass circuit with the electric three-way valve is provided integrally between the two headers, the relatively high-temperature heat medium returned to the heat medium return header can be used. It can be supplied directly to the header for the heat medium, so that the pump and boiler of the hot water production device are not put an extra burden, and the life of the hot water production device can be extended. 2. The floor heating header unit according to the present invention can be handled as a single component by attaching each component integrally at a factory in advance, so that storage and transportation are easy, and construction work can be performed efficiently. It can be carried out. 3. Since the floor unit for floor heating according to the present invention has a compact planar structure, it can be easily stored and transported, and can be easily fixed to a predetermined place even in a narrow construction site. 4. The floor heating header unit according to the present invention is capable of mounting components in a factory in advance and also facilitating a leak test. Leakage can be prevented beforehand. 5. The floor heating header unit according to the present invention is easy to repair and maintain because the bypass circuit is connected by the union joint. 6. Since the floor heating header unit according to the present invention is configured in advance by mounting each component integrally at the factory, the overall size is clear, and the layout of the site can be designed in advance. it can.

[Brief description of the drawings]

FIG. 1 is a front view of an example of a header unit for floor heating according to the present invention.

FIG. 2 is a right side view of the floor heating header unit shown in FIG.

FIG. 3 is a front view of another example of the header unit for floor heating according to the present invention.

FIG. 4 is a front view of an example of a conventional header device for floor heating.

[Explanation of symbols]

 100, 300: Floor heating header unit 101, 401: Heat medium return header 102, 402: Heat medium return header 103, 303, 403: Branch pipe 104: Electric three-way valve 105: T-shaped branch joint 106: Open / close Valve (for heat medium return) 107: Elbow 108: Open / close valve (for heat medium flow) 109, 409: Stand 109a: Thin metal plate 109b: Slightly lower convex portion 109c: Higher convex portion 109d: U-shaped bracket 110 , 410: air release valve 111: pressure gauge 112: test valve 113: header plug 114: union joint 120: bypass circuit 130: heat medium flow pipe 400: header device for floor heating

Claims (1)

[Claims] 1. A high-temperature heat medium supplied from a hot water production device is led to a plurality of heat medium circulation pipes via a heat medium circulation header, and a plurality of return heat medium circulation pipes are formed. In the floor heating header unit for guiding the low-temperature heat medium returned via the heat medium return header to the hot water production device via the heat medium return header, both the headers are formed in a long cylindrical shape, and a plurality of on-off valves Along the length of each header,
At right angles to the outer surface and at regular intervals, the header and the plurality of branch pipes are arranged so as to form a substantially flat surface. , An on-off valve is sequentially connected, and a T-shaped branch joint and an on-off valve are sequentially connected to an end of the header for heat medium return on the side of the hot water production device, and the T-shaped branch joint, the electric three-way valve, and the elbow are connected. A header unit for floor heating, wherein both headers are communicated with each other via a formed bypass circuit, and the headers are fixed to a mount in parallel with each other.