JPH0658561A - Heat accumulative heater device - Google Patents

Abstract

PURPOSE:To provide a heat accumulative type heater device having a control mechanism for performing an appropriate control over a heat radiating amount for improving an energy saving effect of a floor heating device using a heat accumulative hot water heater of which size is compact and having a high heat accumulative amount and for getting a comfortable heated feeling. CONSTITUTION:A bypassing water feeding passage 5 is mounted in parallel with a heat accumulative type hot water heater 1. A three-way valve 4 for controlling an amount of hot water passing through a bypassing water feeding passage 5 and the heat accumulative type hot water heater 1 is mounted at one end where the bypassing water feeding passage 5 is merged with a pipe passage of the heat accumulative hot water heater 1. A temperature sensor 6 is mounted at a downstream side of a part where the hot water from the bypassing water feeding passage 5 is merged with the hot water got from the heat accumulative type hot water heater 1. A display unit 7 is connected to an output side of the temperature sensor 6 and the three-way valve 4 is controlled in response to an output got from the temperature sensor 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating system using a heat storage type water heater that uses late-night power, which is effective in effectively utilizing electric power, and controls the heat radiation amount of the floor heating system to enhance the energy saving effect. The present invention relates to a heat storage type heating device having a control mechanism that appropriately controls and obtains a comfortable warming feeling.

[0002]

2. Description of the Related Art Conventionally, heat storage type water heaters have been used for heating, but the control of the heat radiation amount of a floor heating system uses a method such as stopping the circulation of hot water or reducing the circulation amount of hot water. Was there. Although the heat sources are different, as an example of using this control, as shown in, for example, Japanese Patent Application Laid-Open No. 57-131941, the circulation of hot water is stopped when either the room temperature or the hot water temperature exceeds a set value. There is.

In addition to this, although the heat source is different, the floor surface temperature is detected and the output of the hot water boiler is controlled. JP-A-57-778
No. 35 or a combination of a boiler with two cans of one can and a three-way valve to control the heater and the three-way valve of the boiler by the signals of the temperature at the outlet of the three-way valve, the temperature of the can water, and room temperature. For example, Japanese Patent Laid-Open No. 58-64434 has been published.

[0004]

The floor heating system using a heat storage type water heater has the advantages that the water heater side is compact and has a large amount of heat storage, but has the following restrictions.

(1) It is difficult to control the hot water temperature of the heat storage type water heater, especially when using a latent heat heat storage agent such as sodium sulfate which is effective for downsizing the water heater, the melting temperature of the heat storage agent Determines the hot water temperature.

(2) Since floor heating has a large heat capacity, it has poor responsiveness during control.

(3) Since floor heating is radiant heating, if the circulating amount of hot water is reduced, the floor surface temperature becomes non-uniform and comfort may be impaired. Therefore, it is not preferable to reduce the circulation amount of hot water.

The boiler using the boiler described in the above-mentioned Japanese Patent Laid-Open No. 58-64434 can adjust the temperature by changing the temperature of the hot water, and the drawback of the above (1) can be compensated, but the water heater is large. The amount of heat storage is relatively small.

Further, in Japanese Patent Laid-Open No. 57-131941, it is difficult to control the output without impairing the comfort due to the reasons (2) and (3) described above. It becomes control.

[0010]

The present invention has been made to solve the above-mentioned problems, and a bypass water passage is installed in parallel with a heat storage type water heater, and a bypass water passage and a pipe of the heat storage type water heater are provided. A three-way valve that controls the amount of hot water that passes through the bypass water passage and the heat storage water heater is installed at one end where and merge, and a temperature sensor is installed downstream of the portion where the hot water from the bypass water passage and the heat storage water heater joins. Then, an indicator was connected to the output side of the temperature sensor, and the three-way valve was controlled by the output from the temperature sensor.

[0011]

In the present invention, the bypass water passage is provided in parallel with the compact heat storage type water heater having a large amount of heat storage, and a three-way valve is provided at one end of the bypass water passage, so that the flow rate of the hot water flowing through the heat storage type water heater The amount can be stably reduced to an amount equivalent to the load of the radiation pipe for floor heating provided in the heating device. On the other hand, hot water corresponding to the flow rate of the hot water that has been throttled is supplied by flowing through the bypass water passage, so that the flow rate of hot water in the floor heating device having the radiation pipe for floor heating is secured.

Further, the temperature of the mixed water is displayed in the downstream of the portion where the hot water from the bypass water passage and the hot water from the heat storage type water heater meet, and the flow rate of the hot water flowing to the floor heating device having a radiation pipe for floor heating fluctuates. Therefore, the three-way valve can be controlled by the output from the temperature sensor, and the heating load can be controlled by the opening degree of the three-way valve depending on the hot water temperature.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

In the figure, reference numeral 1 is a heat storage type water heater, which has a structure in which an adiabatic heat storage material is heated by midnight power or the like to store the energy heat, and water is heated by this heat. As the heat storage material, a material having a larger heat capacity is more advantageous, but a material utilizing latent heat such as sodium sulfate is superior. 2 is a floor heating device, which is lined with pipes on the bottom of the floor,
A heat insulating layer is provided on the lower surface of the pipe, and the hot water is caused to flow through the pipe to heat the floor surface and collect heat by radiation from the floor surface. 3 is connected between the heat storage type water heater 1 and the floor heating device 2, and the heat storage type water heater 1
Is a pump for circulating the hot water generated in 1., 4 is a three-way valve for controlling the ratio of the amount of hot water passing through the bypass water passage 5 and the heat storage type water heater 1 provided in parallel to the heat storage type water heater 1,
6 is provided in the vicinity of the entrance of the floor heating device 2, and the floor heating device 2
It is a temperature sensor for detecting the temperature of the hot water supplied to, and an indicator 7 is provided on the output side of the temperature sensor 6 so as to display the temperature of the hot water by its output.

In the above structure, when the pump 3 is operated, the discharged hot water circulates in the floor heating device 2 through the heat storage type water heater 1 and the bypass water passage 5 according to the ratio set by the three-way valve 4. The temperature of the circulating hot water is 6
Is detected by and the detected temperature is displayed on the display 7.

When this temperature is different from the set value, the three-way valve 4
Adjust the temperature to be set by controlling the opening.

By performing feedback control between the temperature sensor 6 and the three-way valve 4, the temperature can be easily controlled to a set value.

[0018]

As described above, according to the present invention, the heat storage type water heater that is compact and has a large heat storage amount is provided with the bypass water passages in parallel, and the three-way valve that controls the flow rate ratio of each water passage is installed. It is no longer difficult to control the hot water temperature of the mold water heater. Further, the amount of hot water of the floor heating device having a large heat capacity can be secured, and there is no fear that the comfort of the floor heating device is deteriorated due to the uneven temperature of the floor surface.

[0019] The load control is beneficial because the responsiveness of the control at the hot water temperature is improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a heat storage type heating device showing an embodiment of the present invention.

[Explanation of symbols]

 1 Heat storage type water heater 2 Floor heating device 3 Pump 4 Three-way valve 5 Bypass water passage 6 Temperature sensor 7 Indicator

Claims (3)

[Claims] 1. A pump (3) for circulating hot water is provided between a heat storage type water heater (1) and a floor heating device (2) having a radiation pipe for floor heating, and the hot water is pumped by the pump (3). In a heat storage type heating device that circulates heat to heat the pipe, a pipe that directly connects the heat storage type water heater (1) and the floor heating device (2) between a pipe line that connects the pump (3) and the heat storage type water heater (1). The bypass water passage (5) is provided in parallel with the heat storage water heater (1) between the passages, and the bypass water passage is provided at one end where the bypass water passage (5) and the pipe of the heat storage water heater (1) merge. (5) and a three-way valve (4) for controlling the mixing ratio of the amount of hot water passing through the heat storage type water heater (1) are connected, the heat storage type heating device. 2. The temperature of the mixed water is controlled by a temperature sensor (6) and an output from the temperature sensor (6) downstream of the portion where the hot water from the heat storage water heater (1) merges with the bypass water passage (5). The heat storage type heating device according to claim 1, wherein a display device (7) for displaying is displayed. 3. A temperature sensor (6) is installed downstream of a portion where the hot water from the heat storage water heater (1) merges with the bypass water passage (5), and mixing is performed by the output from the temperature sensor (6). The heat storage type heating device according to claim 1, wherein the three-way valve (4) keeps the temperature of water constant.