JP2982938B2 - Hot water heater indoor unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of a hot water heater called a fan convector.

[0002]

2. Description of the Related Art A hot water heater includes, for example, an indoor unit 31 called a fan convector as shown in FIG. 2 and an outdoor unit 32 called an oil-fired hot water boiler and used as a heat source unit of the indoor unit 31. There is something. The indoor unit 31 includes a heat exchanger 33 that uses hot water from the outdoor unit 32 as a heat source, and a blower 34 that sends out the air heated by the heat exchanger 33 to the room. It comprises a boiler 35 to generate, a cis tank 36 for storing hot water, a pump 37 for circulating hot water, and the like. The outdoor unit 32 and the indoor unit 31 are connected by a hot water outgoing pipe 38 and a return pipe 39, Is provided with an on-off valve 40 for adjusting the flow of hot water. The indoor unit 31 has an operation unit 41 having a control unit for controlling the blower 34 and the like, and the outdoor unit 32 has a control unit 42 for controlling the boiler 35, the pump 37, the on-off valve 40 and the like. , Both are connected by a signal line.

[0003]

Meanwhile, a heater using hot water includes floor heating in addition to the hot water (hot air) heater configured as described above. Since each of these uses hot water generated by the outdoor unit, it is convenient if the hot water flowing from the outdoor unit 32 to the indoor unit 31 can be used for floor heating, for example. However, the temperature of hot water used for floor heating is 6
0 ° C or less is appropriate, whereas the outdoor unit 32
Since the temperature of the hot water flowing into 33 is as high as about 80 ° C., it cannot be used for floor heating as it is. Also,
The temperature of the hot water returning from the heat exchanger 33 to the outdoor unit 32 has dropped to about 60 ° C, so it can be used for floor heating somehow. It was impossible to perform only floor heating with the requirement that the heating be performed. Therefore, an object of the present invention is to solve these problems and to provide an indoor unit of a hot water heater in which hot water circulated through the heat exchanger 13 can be used for floor heating.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and includes a heat exchanger in which hot water is used as a heat source and an air heated by the heat exchanger in a housing. And a heat exchange unit for generating hot water for floor heating is provided integrally with the heat exchanger.

[0005]

With the above construction, the hot water flowing through the heat exchanger of the indoor unit is not directly used for floor heating, but the heat exchanger is integrally provided with a heat exchange section for generating hot water for floor heating. Since the hot water generated by heat conduction in the heat exchange section is used for floor heating, the temperature of the hot water is not too high, and only floor heating can be performed.

[0006]

An embodiment of the present invention will be described below with reference to FIG. FIG. 1 shows a schematic configuration of a hot water heater and a relationship between floor heating, and 1 denotes an indoor unit of a hot water heater (fan convector), 2 denotes an outdoor unit of a hot water heater (oil-fed hot water boiler), and 3 denotes Floor heating panel. On the indoor unit 1 side, a heat exchanger 5 using hot water from the outdoor unit 2 as a heat source is provided in a housing 4 of the indoor unit 1.
And a blower 6 for sending out the air warmed by the heat exchanger 5 to the room, and a boiler 7 for generating hot water, a cis tank 8 for storing hot water, and a hot water circulation And a pump 9 to be driven. The outdoor unit 2 and the indoor unit 1 are connected by a hot water outgoing pipe 10 and a return pipe 11, and the outgoing pipe 10 is provided with an on-off valve 12 for adjusting the flow of hot water. The indoor unit 1 has an operation unit 13 provided with a control unit for controlling the blower 6 and the like. The outdoor unit 12 has a control unit (not shown) for controlling the boiler 7, the pump 9, the on-off valve 12, and the like. And the two are connected by a signal line.

The feature of this embodiment is that the heat exchanger 5a generates heat for floor heating in the heat exchanger 5a.
Are provided integrally, and the heat conduction from the heat exchanger 5 is used to generate hot water for floor heating. The configuration of the heat exchange unit 5a is the same as that of the heat exchanger 5 side, and the generated hot water flows into the floor heating panel 3 via the outgoing pipe 14, the pump 15, and the outgoing pipe 16, and the heat exchange unit via the return pipe 17. 5a. The ON / OFF operation of the pump 15 can be operated by an operation operation unit 13 provided at an upper front part of the housing 4. Further, a wind shield plate 18 for reducing the flow of wind to the heat exchange unit 5a for floor heating is provided in the upper rear portion inside the housing 4. In the drawing, 19 is a water inlet for floor heating, 20 is a drain port, 21 is a suction port for room air, and 22 is a hot air outlet.

[0008]

According to the above-described hot water heater, the hot water circulated through the fan convector heat exchanger is not used as it is for floor heating, but the fan con vector heat exchanger is used for floor heating. The heat exchange section that generates hot water for use is provided integrally, and the hot water generated by the heat exchange section is used for floor heating, so the temperature of the hot water does not become too high, and the hot air generated by the fan convector In addition to being able to use both heating and floor heating, the system can be operated with only floor heating, which is convenient. In addition, since only one outdoor unit is required, the labor for construction can be reduced, resulting in a cheaper heating system.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a hot water heater showing one embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a hot water heater showing a conventional example.

[Explanation of symbols]

 Reference Signs List 1 indoor unit (fan convector) 2 outdoor unit (oil-fired hot water boiler) 3 floor heating panel 4 housing 5 heat exchanger 5a heat exchange unit 6 blower 10 feed pipe 11 return pipe 12 open / close valve 13 operation operation unit 14 feed pipe 15 Pump 16 Feed pipe 17 Return pipe 18 Wind shield 19 Water inlet 20 Drain

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) F24D 3/00 F24D 19/00

Claims (4)

(57) [Claims] 1. A heat exchanger using hot water as a heat source in a housing;
A heat exchanger including a blower for sending air warmed by the heat exchanger into a room, wherein the heat exchanger is provided integrally with a heat exchange unit for generating warm water for floor heating. Indoor unit of the heater. 2. The indoor unit of the hot water heater according to claim 1, wherein a pump for circulating the hot water generated in the heat exchange unit to floor heating is provided in the housing. 3. The indoor unit of a hot water heater according to claim 1, wherein the operation of the pump is performed from an operation operation unit of the indoor unit. 4. The indoor unit for a hot water heater according to claim 1, wherein a water inlet for floor heating is provided at an upper portion of the housing.