JPS63263327A - Hot-water supplier used both for hot-water room heater - Google Patents

Abstract

PURPOSE:To permit the effective utilization of waste heat, by a method wherein a hot-water coil in a hot-water reserving tank for supplying hot water is connected to a floor panel or the downstream side of a radiator in a room heating circuit to heat the hot-water for supplying utilizing the waste heat of hot-water from the floor heating panel or the radiator during a period of time in which the load of the room heating is small. CONSTITUTION:High-temperature water, heated by a burner 6 and a heat exchanger 7, is transported to a floor heating panel 9 by a circulating pump 8. The heat of the hot-water is dissipated by the floor heating panel 9 into a room to be heated or the like, whereby the heating of the room is effected. The temperature of the hot-water is reduced by the radiation of the heat thereof and the hot-water becomes medium or low temperature hot-water. The hot-water, discharged out of the floor heating panel 9, is sent into a hot-water coil 11 in a hot-water reserving tank 10 and heats the supplying hot-water in the hot-water reserving tank 10. When the load of room heating is small, such as in daytime or the like, the temperature of the hot-water, comming out of the floor heating panel 9 or a radiator, is high; therefore, the supplying hot-water in the hot-water reserving tank 10 may be heated sufficiently by an excessive amount of heat or the waste heat, whereby the waste heat may be utilized for supplying the hot-water.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an apparatus for heating and supplying hot water using hot water.

Conventional Martial Arts Conventionally, this type of heating and hot water supply system, as shown in FIG. The heating and hot water supply circuits were separate circuits.

Problems to be Solved by the Invention However, in the above configuration, when only the heating circuit is operated, the water in the hot water storage tank 2 for hot water supply is heated, and the heated hot water indirectly heats the hot water in the heating circuit. Therefore, there was a problem that the efficiency of the heating machine was poor and the heating start-up was slow. Further, there is a problem in that the return hot water from the floor panel or the radiator 4 is directly returned to the heating machine and is not used effectively.

The present invention is intended to solve these conventional problems, and aims to improve the efficiency of the heating machine, shorten the start-up time of heating, and effectively utilize returned hot water.

Means for Solving the Problems In order to solve the above problems, the hot water heating/water supply system of the present invention includes a heat exchanger heated by a burner, a circulation pump that circulates hot water, and a floor heating panel or a radiator. A heating circuit is formed, and a hot water coil in a hot water storage tank for hot water supply is connected to the downstream side of the floor heating panel or radiator of this heating circuit.

According to the above-described configuration, the present invention is configured such that the hot water heated by the heater is conveyed to the floor heating panel or radiator by the circulation pump, and after heating the room etc. by the floor heating panel or radiator, the hot water in the hot water storage tank is transferred. The water flows to the coil, heats the water in the hot water storage tank, returns to the heater, and is heated again by the heater. Therefore, the exhaust heat of the hot water can be effectively utilized, the efficiency of the heating machine is improved, and heating start-up 9 becomes faster.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

In Fig. 1, 5 is a heating machine, which includes a burner 6 for heating hot water, and a heating device 5 for heating hot water. The combustion chamber 6a has a heat exchanger 7 disposed within the combustion chamber 6a so as to be heated. 8 is a circulation pump that circulates hot water heated by the heat exchanger 7; 9
10 is a floor heating panel or radiator for circulating hot water for heating (hereinafter referred to as a floor heating panel in the description of the embodiment); 10 is a hot water storage tank with a built-in hot water coil 11;
/11 is connected to the downstream side of floor heating spring /L/9. 1
2 is a detection switch for detecting the temperature of hot water in the hot water storage tank 10, and 13 is an on-off valve 4 that opens and closes a bypass circuit 14 of the hot water carp/l'll in conjunction with the hot water temperature detection switch 12. 15 is a water supply pipe connected to the lower part of the hot water storage tank, and 16 is a hot water supply pipe connected to the upper part of the hot water storage tank.

In the above configuration, high-temperature water heated by the burner 6 and the heat exchanger 7 is conveyed to the floor heating panel 9 by the circulation pump 8. The transported high-temperature water is radiated to the room to be heated through the floor heating panel 9, thereby heating the room. As the heat is radiated, the hot water temperature decreases and becomes medium to low temperature water.The hot water discharged from the floor heating panel 9 is sent to the hot water coil 1 in the hot water storage tank 10.
1 and heats the hot water in the hot water storage tank 10.

When the heating load is large in the morning or at night, use the floor heating spring /L/
Since the hot water discharged from the floor heating panel 9 is low, the heating effect of the hot water in the hot water storage tank 10 is small, but when the load such as thinking is small, the temperature of the hot water discharged from the floor heating panel 9 and the radiator is high, so the heating effect is low. The remaining waste heat can be used to sufficiently heat the hot water in the hot water storage tank 10 and use it for hot water supply.

Further, in this embodiment, when the hot water in the hot water storage tank 10 reaches the set temperature, the detection switch 12 detects this and opens the opening valve 13 of the bypass circuit 14, so that the hot water flows into the hot water storage tank 10.
Prevent it from flowing inside. Therefore, hot water storage tank 1
This has the advantage that wasteful heat radiation due to the circulation of hot water into the interior can be suppressed during winter, and the combustion of the burner 6 can be saved, that is, fuel consumption can be saved.

Effects of the Invention As described above, the hot water heating and hot water supply system of the present invention uses the exhaust heat of hot water from the floor heating panel or radiator to heat the hot water for hot water supply during times when the heating load is small, so that the hot water supply system of the present invention can reduce the amount of exhaust heat. Effective use becomes possible.

In addition, since the heat exchanger for heating is directly heated by the burner, there is no need to heat hot water for hot water supply during heating operation, and the efficiency of the heater is improved, resulting in less heating start-up. It gets faster.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of a hot water heating/water heating device according to an embodiment of the present invention, and FIG. 2 is a system diagram of a conventional hot water heating/water heating device. 6...Burner, 7...Heat exchanger, 8.
...Circulation pump, 9...Floor heating panel, 1
0...Hot water storage tank, 11...Hot water coil.

Claims (3)

[Claims] (1) A heating circuit is formed by a heat exchanger heated by a burner, a circulation pump, and a floor panel for floor heating or a radiator for hot air heating, and a hot water supply is provided on the downstream side of the floor panel or radiator of this heating circuit. A hot water heating/water supply system connected to a hot water coil in a hot water storage tank. (2) A patent in which the hot water storage tank has a detection switch that detects the hot water temperature in the tank, and the heating circuit has a hot water coil bypass circuit, and the bypass circuit is provided with a valve that opens and closes when the detection switch is activated. A hot water heating/water supply device according to claim 1. (3) The hot water heating/water supply device according to claim 2, wherein the valve of the bypass circuit is configured to open when the temperature of the hot water in the hot water storage tank rises and reaches a set temperature.