JPS60117035A - Heating apparatus - Google Patents

Abstract

PURPOSE:To miniaturize a heat medium tank and to prevent foreign matters such as dirts and the like from infiltrating into the system and the heat medium from overflowing by providing a hermetically closed tank accommodating therein the heat medium at a heat medium circulating pipe connecting a heating flexible panel to a heat exchanger thereby to make the entire system a hermetically closed one. CONSTITUTION:When a circulation pump 13 is driven to carry out heating, the volume expansion of the heat medium such as water due to the temperature rise in a heat exchanger 10 installed within a stove 9 is absorbed by the volume expansion of the flexible panel 1. As a result, an extraordinary pressure rise of the hermetically closed system can be prevented and the hermetically closed tank 15 can also be prevented. Thus, water does not overflow out of the hermetically closed tank 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a heating device applied to floor heating, ceiling heating, wall heating, etc.

[Background technology]

A flexible panel 1 as shown in FIGS. 1 and 2 is used as a heating panel for floor heating or the like. As shown in panel 1, 11ffl,
The upper and lower surface fabrics 2 are held by a vertical monofilament 3 and a horizontal monofilament 4 with a gap between them, and a surface sheet of plastic, rubber, etc. is layered on the surface fabric 2. As shown in FIG. 2, a hot water supply lower and a drain port 8 are provided at both ends of the panel 10 to circulate hot water in the internal space AK. A carpet 6 is laid on the upper surface of the panel 1. The thickness of the panel 1 changes depending on the pressure applied to the inside, and the amount of water contained within the panel increases or decreases.

FIG. 3 shows a conventional floor heating system that combines a flexible panel 1 and a reflective stove 9.

This device connects the heat exchanger 1o provided inside the stove 9 and the panel 1 with a circulation vibrator 11, and also includes a water tank 12 and a circulation pump 13 on the outgoing pipe 118 that sends hot water to the panel l, and furthermore, llA and the return pipe 11b are connected by a mixing valve 14. The mixing valve 14 is the return pipe 11
The mixing ratio of the low-temperature water flowing in the pipe 11b and the high-temperature water in the outgoing pipe 11a is automatically changed to obtain hot water adjusted to a predetermined temperature.

In such a conventional heating device, since the water supply tank l2 is opened to the atmosphere, the pressure inside the flexible panel 1 becomes higher than the atmospheric pressure during heating operation, the internal volume and thickness of the panel 1 increase, and the inside of the panel 1 increases. The water content increases (indicated by the two-dot chain line in Figure 3). On the other hand, since the amount of water held in the system is constant, the amount of water in the water tank 12 decreases by the amount of increase in the panel 1, and the water level in the water tank 12 decreases (as shown by the dashed line in FIG. 3).

For this reason, the water supply tank 12 needs to have a capacity large enough to absorb the increase and decrease of water, making the tank very large.

In addition, in this conventional system, when the heat exchanger 10 is heated dry (for example, (1) when the stove 9 is burned without driving the circulation pump 3), (2) the high temperature side of the mixing valve 12 is closed, and the heat exchanger 10 is heated. When the flow rate of water flowing through the heat exchanger 10 decreases), as shown in FIG.
Water in the piping between the water supply tank 12 and the water supply tank 12 may return to the water supply tank 12 and overflow from the water supply tank 12.

Furthermore, in the conventional system, if the panel 1 or circulation pipe 11 is damaged, since the tank 12 is open to the atmosphere, a large amount of water in the system leaks, causing damage to furniture, carpets, etc. in the room.

Further, there is a problem in that foreign matter such as dirt enters the water supply tank 12, causing a blockage in the circulation pipe 11 and the panel 1, and greatly increasing the possibility that the water will rot.

[Purpose of the invention]

This invention can reduce the size of the heat medium tank, prevents heat medium such as water from overflowing from the tank due to dry heating of the heat exchanger, and prevents leakage of heat medium when a panel or circulation pipe is damaged. It is an object of the present invention to provide a heating device that can suppress the heat transfer and further prevent the intrusion of foreign matter into the system and the spoilage of the heating medium.

[Disclosure of the invention]

This invention relates to a heating 7 lexiple panel that has a heating medium circulation space inside and whose internal volume changes in response to changes in the pressure applied to the inside, and a heat exchanger that is placed near a heat source and heats the heating medium. The entire system is a closed system, comprising a heat exchanger and a closed tank that accommodates a heat medium and is attached to a heat medium circulation cape pipe that connects the heating panel and the heat exchanger.

An embodiment of the present invention will be described with reference to FIGS. 5 and 6. Note that the same constituent members as shown in FIGS. 1 to 4 are denoted by the same reference numerals, and explanations thereof will be omitted. That is, this heating device is installed in a reflective stove 9 as shown in FIG.
The entire system is sealed from the outside.

Therefore, even when heating is performed by driving the circulation pump 13, there is almost no change in the water-6 contained in the flexible panel 1, and there is no fluctuation in the water level in the closed tank 15.

In actual heating, the water circulating in the system 1 is a heat exchanger H&10
Although the volume is expanding due to the temperature rise at , the increase is absorbed by the flexible panel 1 expanding and increasing its internal volume.

Generally, in a closed system heating system using a hard panel such as a copper vibrator as a floor heating panel, an expansion tank 16 as shown in FIG. It is necessary to absorb the volumetric expansion of water with the diaphragm 17 installed in the □ tongue 6, but by using the flexible panel 1, the panel itself plays the role of an expansion tank, so an expansion tank is not required. becomes. Furthermore, when the heat exchanger 1o is idle, as shown in FIG. Since the increase in water cover is absorbed by the system, no abnormal pressure rise occurs in the system. of course,
Water will not overflow from the sealed tank 15.

In this way, since there is almost no water level fluctuation within the closed tank 15, the closed tank 15 can be made smaller. Therefore, even when the heating device according to this special embodiment is later incorporated into the existing reflective stove 9, the device itself becomes a P-type heater, which saves space and is easy to install. In addition, since the expansion tank 16 and the like are not required, the number of parts is reduced, the number of failure points is also reduced, and reliability is improved. Furthermore, even if the panel 1 or the circulation pipe 11 is damaged, once the pressure within the system reaches atmospheric pressure, no more water will leak, and the amount of water leakage will be extremely small. Moreover, since it is a closed system, foreign substances such as dust from the outside do not enter, and mold does not easily grow, so the panel 1 and the circulation pipe 11 are not clogged and are kept clean.

In this embodiment, the reflective stove 9 is used as the heat source, but it goes without saying that other heat sources may be used.

〔Effect of the invention〕

The heating device of this invention has the following effects.

(1) Since the volumetric expansion of the heat medium such as water caused by sealing the tank is absorbed by the volumetric expansion of the flexible panel, the tank can be made smaller, making the entire device more compact and improving reliability. .

(2) By making the system a closed system using a closed tank, leakage of the heat medium in the event of breakage of flexible panels, circulation pipes, etc. is extremely reduced, and no damage is caused to indoor floors, furniture, etc.

(3) Foreign matter such as dust may enter the system or the heating medium may
This prevents clogging and corrosion of the heating medium.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the structure of the flexible panel, Figure 2 is an explanatory diagram showing the structure of the flexible panel.
The figure is a vertical cross-sectional view of the 7 lexiple panel, Figure 3 is an explanatory diagram showing the operation of a conventional heating system during heating operation, Figure 4 is an explanatory diagram showing the state when the heating is dry, and Figure 5 is this diagram. FIG. 6 is an explanatory diagram showing the operation during heating operation according to an embodiment of the invention, FIG. 6 is an explanatory diagram showing the state during dry heating, and FIG. 7 is an explanatory diagram showing the expansion tank in a normal hard panel. 1...7 Lexiple panel, 9...Reflector stove (heat #), 10...Heat exchanger, 11...Circulation pipe, Figure 7 Procedures 11 Positive 1 ((Spontaneous 1, Incident) Indication of 1982 Patent Application No. 226142 2, Name of the invention Heating device 3, Person making the amendment Relationship to the case: Applicant 1, person 4, agent 5, date of amendment order A. Voluntary amendment (1) Specification On page 3, line 13, "circulation pump 3" is corrected to "1 circulation pump 13." (2) On page 3, line 14 of the specification, "mixing valve 12" is changed to "mixing valve 14." correct.

Claims (1)

[Claims] A heating 7 lexiple panel that has a heat medium circulation space inside and whose internal volume changes in response to changes in the pressure applied inside;
The entire system is hermetically sealed, including a heat exchanger placed near the heat source to heat the heat medium, and a sealed tank attached to a heat medium circulation pipe connecting the heating panel and the heat exchanger to accommodate the heat medium. heating system.