JPH04143522A - Hot-water heater - Google Patents

Abstract

PURPOSE:To save the waste of energy, and to improve measures for energy-saving, by a method wherein a heat-exchanger is placed in a radiation casing formed filling a heat- accumulating material; the inlet side of the heat-exchanger is connected to the outlet side of a heat-generating machine, with one circulating pipe and the outlet side thereof is connected to the inlet side of the heat-generating machine, with the other circulating pipe; and a thermal sensor is located at a place in which a temperature on the heat-accumulating material is detected. CONSTITUTION:A heat-generating machine 1 for hot-water is formed so that a circulating pump 2 and a controller 3 are incorporated therein, and a radiation panel 4 is formed so that a heat-accumulating material 5 is filled therein and a heat-exchanger 6 is placed in this heat-accumulating material 5. A hot water-supplying pipe 7 is connected between the inlet side of the heat-exchanger 6 and the outlet side of the heat-generating machine 1, and a hot water-returning pipe 8 is connected between the outlet side of the heat-exchanger 6 and the inlet side of the heat-generating machine 1. A valve 9 is mounted on the hot water- returning pipe 8, and temperature of the heat-accumulating material 5, i.e., a phase change, is detected by a thermal sensor 10 inserted into the heat-accumulating material 5, and the temperature detected is transmitted to the controller 3. The controller 3 controls the operation of the valve 9 or the heat-generating machine 1 on the basis of this signal, and thus heating temperature is automatically controlled. In this way, the heat efficiency of the title can be improved and energy-saving operative can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hot water heating device that efficiently performs relatively gentle heating.

[Prior Art] As a heating device that uses hot water as a heat source, a device that uses a panel type radiator as shown in FIG. 5 is known as one that performs relatively gentle heating.

This heating device circulates the hot water generated by the thermal IQ machine O1 into the heat exchanger 03 in the hot water panel 02, and performs heating using the radiant heat and convection heat from the hot water panel 02. The temperature is controlled by the thermometer 04. This is done by turning on and off the valve 05, and is mainly used for heating toilets, dressing rooms, bedrooms, floor heating, foot baths, etc.

[Prior art section 8] However, the heating device described above has the following drawbacks.

a. When only the heat radiation panel 02 is in use, the heat radiation panel 02 has a small load, so the operation efficiency of the heat source device O1 is poor, and even if the valve 05 is turned OFF, the heat source device O1 side does not operate. Since the hot water continues to be used and the hot water is bypassed, energy is wasted during this time, which is not desirable from an energy-saving measure.

b. Turn on the heat source machine O1 in order to eliminate the drawback of the above a.
A method of OFF control can be considered. However, if you do this, the heat source device itself will also cool down once, and there will be a lot of heat loss during startup. Also, when it starts up poorly, it turns on.
, the lifespan of the equipment will be shortened due to repeated turning off.

It is an object of the present invention to provide a hot water heating apparatus employing a panel system that does not have the drawbacks described in a and b above.

[Means to solve the problem] The configuration of the present invention is as follows.

A heat exchanger is inserted into a heat radiation casing filled with a heat storage material, and the inlet side of the heat exchanger is connected to the outlet side of the heat source device for generating hot water, and the outlet side is connected to the inlet side of the heat source device using circulation pipes. Hot water heating equipment.

In the above configuration, a temperature sensor is inserted in the heat radiation casing at a position where the temperature of the heat storage material can be detected, and the hot water circulation is bypassed or the heat source device is turned on based on the temperature of the heat storage material detected by this temperature sensor. , a controller for OFF control may be provided.

Further, the inside of the heat dissipation casing is divided into a plurality of sections using a partition plate, and a heat exchanger is independently inserted into each of the plurality of sections.
The hot water circulating inside each heat exchanger is controlled to be turned on and off using a switching valve, the inside of the heat dissipation casing is divided into multiple sections using partition plates, and heat storage materials with different phase change temperatures are placed in the multiple sections. Alternatively, the heat dissipation temperature may be controlled by filling them respectively.

Alternatively, a forced ventilation fan may be attached outside the heat dissipation casing to provide forced ventilation.

[Function] The above device generates hot water with a heat source device and circulates it in a heat exchanger in a heat radiation casing. This circulation causes
The heat storage material inside the heat dissipation casing causes a phase change and stores heat, and after the hot water is turned off, the accumulated heat is released from the surface of the heat dissipation casing over time. When heat is released in this way and the heat storage material cools down, a temperature sensor detects the decreased temperature of the heat storage material and sends this signal to the controller. The controller immediately opens the switching valve to circulate hot water again into the heat exchanger to cause a phase change in the heat storage material, and repeats the same process to automatically control the heating temperature (for example, room temperature).

Note that instead of controlling the switching valve, the heat source device is turned on.
It is also possible to automatically control the heat radiation temperature by controlling OFF, controlling the number of heat exchangers used in the heat radiation casing, and selecting the use of heat storage materials with different phase change temperatures by controlling hot water circulation. It is.

[Example] FIG. 1 shows an example of the present invention. Reference numeral 1 denotes a heat S machine for generating hot water that incorporates a circulation pump 2 and a controller 3 inside, and 4 a heat storage material (wax) 5 filled inside and a heat exchanger 6 inserted into this heat storage material 5. A heat dissipation panel made of
7 is a hot water outgoing pipe connecting the inlet side of the heat exchanger 6 and the outlet side of the heat source device 1, and 8 is a hot water return pipe connecting the outlet side of the heat exchanger 6 and the inlet of the heat source device 1. It is.

A valve 9 is attached to the hot water return pipe 8, and a temperature sensor 10 is inserted into the heat storage material 5 to detect the temperature of the heat storage material 5, that is, the phase change, and transmit this to the controller 3. Based on this signal, the controller 3 controls the valve 9 or (
and) controlling the operation of the heat source device 1 to automatically control the heating temperature.

FIG. 2 shows another embodiment of the heat dissipation panel 4, in which the interior of the heat dissipation panel 4 is divided into two chambers by a partition plate 11, heat exchangers A and B are inserted into each chamber, and a control valve 12 Heat exchangers A and B are selectively used to change the heat radiation area, thereby controlling the heat radiation amount. Of course, it is also possible to use heat exchangers A and B simultaneously.

FIG. 3 shows another embodiment of the heat dissipation panel 4, in which the heat dissipation panel 4 is divided into two chambers by a partition plate 11, each of which is filled with heat storage materials 5a and 5b having different phase change temperatures, and is sent from a heat source Ia1. The heat dissipation amount can be controlled in the same way as in the case of Figure WS2 by varying the temperature of the hot water being supplied and utilizing the difference in phase change of each heat storage material.

FIG. 4 shows an embodiment in which a fan 13 is provided outside the heat radiation panel 4 to increase the amount of heat radiation through forced ventilation.

In the case of the embodiment, all the heat dissipation panels 4 are flat, but this shape may be modified depending on the heating conditions, application, etc., and unevenness or fins may be attached to the surface with the aim of expanding the heat transfer area. .

[Effects of the Present Invention] As described above, the present invention fills the heat dissipation casing with a heat storage material and utilizes the phase change of the heat storage material to perform hot water heating, so that the following effects are achieved.

a. The heat storage material quickly stores heat due to phase change and radiates heat over time, so by stopping hot water immediately after phase change, thermal efficiency is high and energy-saving operation is possible.

b. While the heat is dissipated over time from the heat dissipation casing,
Since the heat source device can be stopped and the stopping time is long (ON/OFF cycle is long), it is effective in terms of energy saving and the life of the device is extended accordingly.

[Brief explanation of the drawing]

Figure 1 is an embodiment of the present invention, and Figure 2 shows the inside of the heat dissipation panel.
Figure 3 is an example diagram in which heat storage materials with different phase changes are divided and filled in a heat dissipation panel.
The figure shows an example in which a fan is attached to a heat dissipation panel, and FIG. 5 is a diagram #J of a conventional hot water panel type heating device. 1...Heat source device 3...Controller 4...Radiation panel 5...Heat storage material heat exchanger valve Temperature sensor Partition plate fan #Applicant: Tokyo Gas Co., Ltd.! I! If diagram Figure 2 Figure 3

Claims (1)

[Claims] 1. A heat exchanger is inserted into a heat radiation casing filled with a heat storage material, and the inlet side of the heat exchanger is connected to the outlet side of the heat source device for generating hot water, and the outlet side is connected to the outlet side of the heat source device. A hot water heating system that is connected to each input side by a circulation pipe. 2. Insert a temperature sensor in the heat radiation casing at a position where it can detect the temperature of the heat storage material, and bypass the circulation of hot water or control the ON/OFF of the heat source device based on the temperature of the heat storage material detected by this temperature sensor. The hot water heating device according to claim 1, further comprising a controller. 3. The inside of the heat dissipation casing is divided into a plurality of sections using a partition plate, and a heat exchanger is independently inserted into each of the plurality of sections,
2. The hot water heating apparatus according to claim 1, wherein the hot water circulating in each of the heat exchangers is controlled to be turned on and off by a switching valve. 4. The hot water heating device according to claim 1, wherein the inside of the heat dissipation casing is divided into a plurality of sections by partition plates, and each of the plurality of sections is filled with a heat storage material having a different phase change temperature. 5. The hot water heating device according to claim 1, further comprising a forced ventilation fan installed outside the heat radiation casing.