JP2001221450A - Bathroom floor-heating apparatus having prompt hot- water letting-out function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom floor-heating apparatus having a function for prompt letting-out of hot water by using a heat source unit as it is. SOLUTION: The bathroom room heater comprises a heat exchanger for hot water supply and burners, another heat exchanger for a bath and burners, a bathtub installed in the bathroom, a circulation pipe connecting the bathtub with the heat exchanger for the bath, a hot water supply pipe connected to the heat exchanger for water supply, a hot water running pipe branched from the hot water supply pipe and connected to the circulation pipe in the other end, a hot-water supply pipe which is connected to the hot-water supply pipe and laid to a water-supply terminal such as a shower, a heat-storing panel provided to a supply pipe laid from the heat exchanger for the bath to the bathtub, an indirect heat-exchanger provided midway in the water-supply pipe for effecting a heat exchange with the heat exchanger of the heat-storing panel, and a return pipe laid from the bathtub to the heat exchanger for the bath.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathroom floor heating apparatus having a hot water supply function using gas, oil and electricity as fuel.

[0002]

2. Description of the Related Art Conventionally, there is known a hot water type floor heating apparatus in which a hot water is supplied to a heat storage panel during bath dropping to heat a bathroom floor (for example, Japanese Patent Application Laid-Open No. Hei 7-199993). On the other hand, there is also known a hot water supply device in which hot water is immediately supplied from a hot water supply curan when hot water is used, that is, so-called instant hot water supply is possible.

[0003]

However, in this type of conventional floor heating apparatus, the above-mentioned hot water cannot be supplied immediately, and a member such as an electric pot is required separately to enable the instant water supply. This has the disadvantage that the whole apparatus becomes complicated.

[0004] In view of the above problems, it is an object of the present invention to provide a bathroom floor heating device having an instantaneous hot water supply function capable of instantly supplying hot water using a heat source unit as it is.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a bathroom floor heating apparatus having a function of immediately supplying hot water according to the present invention comprises a heat exchanger and a burner for hot water supply, a heat exchanger and a burner for bath, and a bathroom. A tub, a circulation pipe connecting the bath tub and the bath heat exchanger, a tapping pipe connected to the hot water supply heat exchanger, and a dropper branched from the tapping pipe and having the other end connected to the circulation pipe. A hot water supply pipe connected to the hot water supply pipe to a hot water supply terminal such as a shower, a heat storage panel provided on an outgoing pipe from a bath heat exchanger to a bathtub, and the heat storage panel provided in the middle of the hot water supply pipe. The first feature is that an indirect heat exchanger for exchanging heat with the heat exchanger of the first embodiment and a return pipe returning from the bathtub to the bath heat exchanger are provided. According to the first feature, the indirect heat exchanger, which exchanges heat with the heat exchanger of the heat storage panel provided in the outgoing pipe from the bath heat exchanger to the bathtub, utilizes the residual heat of the bathtub in the hot water supply pipe. The cold water can be warmed. Thereby, the hot water can be immediately supplied to the heat source device without requiring a separate member for the instant hot water, and energy can be saved by using the remaining hot water in the bathtub.

[0006] The bathroom floor heating apparatus having the function of instant hot water supply according to the present invention comprises a hot water supply heat exchanger and a burner, a bath heat exchanger and a burner, a bathtub provided in the bathroom, and the bathtub and the bath heat exchange device. A circulating pipe for connecting the water heater, a tapping pipe connected to the hot water supply heat exchanger, a dropping pipe branched from the tapping pipe and having the other end connected to the circulating pipe, and a shower or the like connected to the tapping pipe. A hot water supply pipe leading to a hot water supply terminal, a heat storage panel provided on an outgoing pipe from the bath heat exchanger to the bathtub, and an indirect heat exchanger provided in the middle of the hot water supply pipe and exchanging heat with the heat exchanger of the heat storage panel. And a return pipe returning from the bathtub to the bath heat exchanger, wherein the indirect heat exchanger is provided as a double tube with the heat exchanger of the heat storage panel. According to this second feature, in addition to the above features, an indirect heating heat exchanger for instantaneous hot water can be constructed at the same time as long as a heat storage panel is laid. The heat storage panel can be reduced in size due to the weight. In addition, the bathroom floor heating device having a hot water supply function of the present invention includes a hot water supply heat exchanger and a burner, a bath heat exchanger and a burner, a bathtub provided in a bathroom, and the bathtub and the bath heat exchanger. A circulation pipe to be connected, a tapping pipe connected to the hot water supply heat exchanger, a dropping pipe branched from the tapping pipe and having the other end connected to the circulation pipe, and a hot water supply terminal such as a shower connected to the tapping pipe and connected to the tapping pipe. From the hot water supply pipe, a heat storage panel provided in the outgoing pipe from the bath heat exchanger to the bathtub, an indirect heat exchanger provided in the middle of the hot water supply pipe and exchanging heat with the heat exchanger of the heat storage panel, A third feature is that a return pipe is provided for returning to the bath heat exchanger, and the indirect heat exchanger is provided in close contact with the heat exchanger of the heat storage panel. According to the third feature, in addition to the above features, the heat transfer from the heat exchanger of the heat storage panel to the indirect heat exchanger for hot water can be improved, and the speed of hot water discharged from the hot water supply terminal can be increased.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of a bathroom floor heating device having an instant hot water function according to the present invention. FIG.
FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 3 is a sectional view of the heat exchanger showing one embodiment of the present invention. FIG. 4 is a sectional view of a heat exchanger showing another embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a heat source unit, in which a hot water supply heat exchanger 2 and a burner 3 provided therebelow, a bath heat exchanger 4 and a burner 5 provided thereunder, which will be described later. A main body controller 6 for controlling a circulation pump and the like is provided. Reference numeral 7 denotes a remote controller having a display unit for remotely controlling the heat source unit 1 and displaying hot water supply temperature, time, operation state, and the like on a screen. The remote controller 7 is provided near the bathtub 8 and performs hot water supply, additional heating, and heating operations. 9 is a bathroom floor of a bathroom such as a system bath.

Reference numeral 10 denotes a water inlet pipe to the hot water supply heat exchanger 2;
Reference numeral 1 denotes a hot water supply pipe extending from a hot water supply heat exchanger 2 to a hot water supply pipe and a hot water supply curan described later. The water inlet pipe 10 is provided with a water amount sensor 13 for detecting the amount of water passing from an upstream side thereof and a water temperature sensor 14 for detecting an incoming water temperature. The tapping pipe 11 is provided with a temperature sensor 15 such as a thermistor as a temperature sensing member for detecting the temperature of the hot water heated by the hot water supply heat exchanger 2, and a water flow control valve 12 for controlling the flow rate. The temperature sensor 15 may detect the temperature of hot water after the hot and cold water is mixed.

Reference numeral 16 denotes a gas pipe leading to the gas burner 3.
The gas pipe 16 is provided with a gas solenoid valve 17 as a driving member for opening and closing a gas passage, a proportional valve, and the like. Reference numeral 18 denotes a room temperature detector such as a thermistor for detecting the temperature of the bathroom provided in the bathroom, and may be provided integrally with the remote controller 7. Reference numeral 19 denotes a circulation pipe of the bath heat exchanger 4 connected to the bathtub 8. The circulation pipe 19 has a water flow sensor 20, a circulation pump 21, and a bath temperature sensor for detecting the temperature of the bathtub hot water by circulating the bathtub hot water. 27 are provided. Reference numeral 22 denotes a hot water supply pipe branched from the hot water supply pipe 11 and connected to the circulation pipe 19, and is provided with a solenoid valve 23 for opening and closing and a pouring amount sensor 26 for measuring a pouring amount in the middle. When dropping, one or both of the outgoing pipe and the return pipe of the bath may be used. 24
Is a gas solenoid valve provided in a gas passage 25 leading to the burner 5. Reference numeral 28 denotes a water level sensor such as a semiconductor pressure sensor for detecting the water level in the bathtub.

The circulation pipe 19 comprises an outgoing pipe 29 from the bath heat exchanger 4 to the bathtub 8 and a return pipe 30 from the bathtub 8 to the bath heat exchanger 4. Heat exchanger 4 for bath
On the way to the bathtub 8 from the outgoing pipe 29
A heat storage panel 31 is provided below the rear surface of the device, and the panel includes a meandering heat exchanger 32 and a heat storage material 33. A drain plug 34 is provided on the bottom of the bathtub 8. And
An open / close valve 35 is provided near the circulation pump 21 on the return pipe 30 extending from the bathtub 8 to the bath heat exchanger 4.

The bathroom is provided with a hot water supply terminal 36 such as a shower or a hot water supply curan. An indirect heat exchanger 38 for exchanging heat with the heat exchanger 32 of the heat storage panel 31 is provided in the middle of a hot water supply pipe 37 connected to the hot water supply pipe 11 and reaching the hot water supply terminal 36. This indirect heat exchanger 38 is the back surface of the bathroom floor 9 and is manufactured integrally with the heat storage panel 31. As the heat storage material, a material made of a stone material or a resin material is recommended.

Next, the indirect heat exchanger 3 is provided in the middle of the hot water supply pipe 37 and exchanges heat with the heat exchanger 32 of the heat storage panel 31.
3 and 4 can be recommended as a specific example of FIG. That is, in the embodiment of FIG. 3, the indirect heat exchanger 38 for instantaneous hot water and the heat exchanger 32 of the heat storage panel 31 are concentric double pipes. An indirect heat exchanger for immediate hot water is located, and the heat exchanger 32 of the heat storage panel 31 is disposed around the indirect heat exchanger. The cross-sectional area of the indirect heat exchanger 38 is
2 is smaller than the cross-sectional area. With such an arrangement, the heat exchanger 32 with respect to the indirect heat exchanger 38
Is received from all around the indirect heat exchanger 38,
Heat exchange efficiency is improved.

In the embodiment shown in FIG. 4, the indirect heat exchanger 38 for hot water and the heat exchanger 3 of the heat storage panel 31 are provided.
2 is formed by closely contacting the outside of a copper tube constituting the heat exchanger in parallel, and the indirect heat exchanger 38 for instantaneous hot water is disposed in close contact with the heat exchanger 32 so that The heat transfer from the heat exchanger 32 to the heat exchanger 38 is directly received from the heat exchanger 32, and the heat exchange efficiency is improved.

FIG. 2 is a block diagram of a control circuit showing an embodiment of the present invention.
Is connected via an electrical connection cord, and the temperature sensor 1
5. The state of the heat source unit 1 is determined based on detection signals from various sensors other than the water amount sensor 13 and the remote controller 7
The operation of each part (for example, a gas solenoid valve, a gas proportional valve) of the heat source device main body is controlled based on the control command from.
The main body controller 6 comprises a microcomputer. When the room temperature detector 18 detects a constant temperature, the controller 6 drives the circulation pump 21 and starts the burner combustion. In order to stop the circulating pump 21 and stop the combustion of the burner when the detection of the condition (1), floor heating stop means or the like is incorporated.

Next, the control operation of the present invention will be described. At the time of hot water supply and heating, first, when the switch of the remote controller 7 is turned on, the electromagnetic valve 23 opens, the water amount sensor 13 detects the water flow, and ignites the burner 3. At this time, the open / close valve 35 is closed, so that the heated hot water is Hot water is supplied to the bathtub 8 via the bath heat exchanger 4, the outgoing pipe 29, and the heat storage panel 31 via the hot water supply pipe 22, poured into the bathtub 8, and heated by the meandering heat exchanger 32. Is performed, and bath water supply and heating are started.

When the water level in the bathtub 8 reaches the preset water level by the bath water supply operation, the solenoid valve 23 is closed by the detection of the water level sensor 28, and the burner 3 stops burning. Is opened. At this time, whether or not the set bath water temperature has been reached is determined by the circulation pump 21.
If the temperature has reached the set temperature as detected by the driving of the bath temperature sensor 27 and the bath temperature sensor 27, the hot water supply and heating are stopped. On the other hand, if the temperature has not reached the set temperature, the circulating pump 21 is driven, the burner 5 is ignited by the water flow sensor 20, and the bathtub water is heated until the temperature reaches the set temperature. During the hot water supply to the bathtub, a part of the water in the hot water supply pipe 37 is heated by the indirect heat exchanger 38 provided in the middle of the hot water supply pipe 37 and exchanging heat with the heat exchanger 32 of the heat storage panel. Thus, when the hot water supply terminal 36 such as a shower is opened and hot water is used, the water in the hot water supply pipe 37 is heat-exchanged at the heat exchanger 32 of the heat storage panel via the indirect heat exchanger 38, and is heated and then heated. Will be discharged. Hot water supply pipe 37 that was stationary
After all of the water inside has passed through the indirect heat exchanger 38, the hot water heated by the hot water supply heat exchanger 2 is supplied, and the normal hot water supply usage state is established.

After the pouring into the bathtub is completed, the temperature of the bathroom is measured by a room temperature detector 18 for detecting the temperature of the bathroom provided in the bathroom, and the temperature of the bathroom falls to a certain value. In this case, the circulating pump 21 provided in the circulating pipe 19 is driven by the above-described floor heating starting means,
With this drive, a water flow is generated in the circulation pipe 19, the water flow sensor 20 is turned on, an ignition command is issued to the burner 5 via the main body controller 6, and the combustion of the burner 5 is started. Thus, the hot and cold water in the circulation pipe 19 is heated and circulated in the bath heat exchanger 4, radiated by the heat storage panel 31, and the temperature of the bathroom rises. If the combustion amount of the burner 5 is set in advance by an experiment or the like so as to match the heat radiation amount of the heat storage panel 31 and the heat radiation amount of the bathtub hot water, it is possible to maintain the heat of the bath hot water while performing the bathroom floor heating operation. .

When the hot water supply terminal 36 such as a shower is used after the end of bathing, the remaining hot water in the bathtub is used. That is, by circulating the remaining hot water in the bathtub 8 to the heat exchanger 32 without driving the burner 5 by driving only the circulation pump 21, the indirect heat exchanger 3
The heat transfer to 8 may be increased. A few seconds are sufficient for heat exchange of water in the hot water supply pipe 37, and the driving time of the circulation pump 21 may be set to about several seconds.

In order to maintain the heat retention of the floor heating,
When a large amount of hot water is to be supplied, the outgoing pipe 29 and the heat storage panel 31
It is also recommended that the water be dropped into the bathtub 8 via the return pipe 30 and that the water be dropped into the bathtub 8 via only the return pipe 30 when hot water is to be supplied at a low temperature. In addition, a part of the circulation pipe 19 may be extended so as to be in contact with the back surface of a mirror of a vanity table (not shown) so as to be used for clouding of the mirror.

The above-described embodiment shows a preferred embodiment of the present invention, and the present invention is not limited to this, and various design changes can be made within the scope. For example, in this embodiment, the remote controller is connected by wire, but may be linked wirelessly. In addition, the bathroom floor heating system using gas as fuel has been described.
May be the case of a bathroom floor heating device using as fuel.

[0022]

According to the first aspect of the present invention, there is provided a bathroom floor heating device having a function of quickly supplying hot water, a heat exchanger and a burner for hot water supply, a heat exchanger for a bath and A burner, a bath tub provided in the bathroom, a circulation pipe connecting the bath tub and the bath heat exchanger, a tapping pipe connected to the hot water supply heat exchanger, and a circulation pipe branched from the tapping pipe and having the other end connected to the circulation pipe. A hot water supply pipe connected to the hot water supply pipe to a hot water supply terminal such as a shower, a heat storage panel provided on an outgoing pipe from a bath heat exchanger to a bathtub, and provided in the middle of the hot water supply pipe. The heat storage panel provided in the outgoing pipe from the bath heat exchanger to the bath tub is provided with an indirect heat exchanger for exchanging heat with the heat exchanger of the heat storage panel and a return pipe returning from the bath tub to the bath heat exchanger. The indirect heat exchanger that exchanges heat with the heat exchanger in the You can warm the cold water in the hot water supply pipe leading to the indirect heat exchanger by utilizing from the outlet of the hot water supply heat exchanger. Thereby, the hot water can be quickly supplied without requiring a separate member for the quick hot water in the heat source device, and energy can be saved by using the remaining hot water in the bathtub.
In addition, according to the bathroom floor heating device having the quick tapping function according to claim 2, a hot water supply heat exchanger and a burner, a bath heat exchanger and a burner, a bathtub provided in a bathroom, the bathtub and the bath A circulation pipe for connecting to the heat exchanger, a tapping pipe connected to the hot water supply heat exchanger, a dropping pipe branched from the tapping pipe and having the other end connected to the circulation pipe, and connected to the tapping pipe. A hot water supply pipe leading to a hot water supply terminal such as a shower, a heat storage panel provided in an outgoing pipe from a bath heat exchanger to a bathtub, and an indirect heat that is provided in the middle of the hot water supply pipe and exchanges heat with the heat exchanger of the heat storage panel. An exchanger and a return pipe returning from the bathtub to the bath heat exchanger are provided.The indirect heat exchanger has a double tubular shape with the heat exchanger of the heat storage panel. As long as it is laid, an indirect heating heat exchanger for instant hot water Made this way, it can simplify installation work,
Moreover, the heat exchange efficiency is improved by doubling the heat exchanger,
The heat storage panel can be downsized. Claim 3
According to the bathroom floor heating device having an instant hot water function described in
A heat exchanger and a burner for hot water supply, a heat exchanger and a burner for bath, a bathtub provided in a bathroom, a circulation pipe connecting the bathtub and the heat exchanger for bath, and a tap water connected to the heat exchanger for hot water supply. A pipe, a dropping pipe branched from the tapping pipe and having the other end connected to the circulation pipe, a hot water supply pipe connected to the tapping pipe and reaching a hot water supply terminal such as a shower, and a flow from the bath heat exchanger to the bathtub. A heat storage panel provided in the pipe, an indirect heat exchanger provided in the middle of the hot water supply pipe to exchange heat with the heat exchanger of the heat storage panel, and a return pipe returning from the bathtub to the bath heat exchanger. Since the indirect heat exchanger is provided in close contact with the heat exchanger of the heat storage panel, in addition to the above features, heat transfer from the heat exchanger of the heat storage panel to the indirect heat exchanger for instantaneous hot water is improved. The speed of tapping water discharged from the terminal can be increased.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a bathroom floor heating device having an instant hot-water supply function according to an embodiment of the present invention.

FIG. 2 is an electric circuit block diagram showing one embodiment of the present invention.

FIG. 3 is a cross-sectional view of the heat exchanger.

FIG. 4 is a cross-sectional view of the heat exchanger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat-source unit 2 Heat exchanger for hot water supply 4 Heat exchanger for bath 6 Main body controller 7 Remote control 8 Bathtub 9 Bathroom floor 11 Hot water pipe 18 Room temperature detector 19 Circulation pipe 20 Water flow sensor 21 Circulation pump 22 Hot water dropping pipe 28 Water level sensor 29 Outgoing pipe 30 Return pipe 31 Thermal storage panel 35 Open / close valve 36 Hot water supply terminal 37 Hot water supply pipe 38 Indirect heat exchanger

Claims (3)

[Claims] 1. A heat exchanger and a burner for hot water supply, a heat exchanger and a burner for a bath, a bathtub provided in a bathroom, a circulation pipe connecting the bathtub and the heat exchanger for the bath, and a heat exchanger for hot water supply. A hot water pipe connected to a water heater, a falling pipe branched from the hot water pipe and having the other end connected to the circulation pipe, a hot water supply pipe connected to the hot water pipe and reaching a hot water supply terminal such as a shower, and a bath heat exchanger A heat storage panel provided in the outgoing pipe from the hot water supply pipe, an indirect heat exchanger provided in the middle of the hot water supply pipe to exchange heat with the heat exchanger of the heat storage panel, and a return pipe returning from the bathtub to the bath heat exchanger. A bathroom floor heating device having an instant hot water function, which is provided. 2. A heat exchanger and a burner for hot water supply, a heat exchanger and a burner for bath, a bathtub provided in a bathroom, a circulation pipe connecting the bathtub and the heat exchanger for bath, and a heat exchanger for hot water supply. A hot water pipe connected to a water heater, a falling pipe branched from the hot water pipe and having the other end connected to the circulation pipe, a hot water supply pipe connected to the hot water pipe and reaching a hot water supply terminal such as a shower, and a bath heat exchanger A heat storage panel provided in the outgoing pipe from the hot water supply pipe, an indirect heat exchanger provided in the middle of the hot water supply pipe to exchange heat with the heat exchanger of the heat storage panel, and a return pipe returning from the bathtub to the bath heat exchanger. A floor heating device for a bathroom having an instant hot water supply function, wherein the indirect heat exchanger is provided as a double tube with a heat exchanger of a heat storage panel. 3. A heat exchanger and a burner for hot water supply, a heat exchanger and a burner for bath, a bathtub provided in a bathroom, a circulation pipe connecting the bathtub and the heat exchanger for bath, and a heat exchanger for hot water supply. A hot water pipe connected to a water heater, a falling pipe branched from the hot water pipe and having the other end connected to the circulation pipe, a hot water supply pipe connected to the hot water pipe and reaching a hot water supply terminal such as a shower, and a bath heat exchanger A heat storage panel provided in the outgoing pipe from the hot water supply pipe, an indirect heat exchanger provided in the middle of the hot water supply pipe to exchange heat with the heat exchanger of the heat storage panel, and a return pipe returning from the bathtub to the bath heat exchanger. A bathroom floor heating device having an immediate hot water supply function, wherein the indirect heat exchanger is provided in close contact with a heat exchanger of a heat storage panel.