JPH05296476A - Multi-faucet hot water supplying system - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a multi-plug hot water supply system in which ordinary water supply pipes can be used as hot water supply pipes as they are. [Structure] On the hot water outlet side of the water heater 2, water supply pipes 3 are connected at a plurality of locations to be supplied with hot water. The water heater 2 has a mixing valve 6 in a hot water path 5 that passes through the heat exchanger 4, and forms a water path 7 that branches on the upstream side of the heat exchanger 4 and reaches the mixing valve 6. It is a thing. Further, the water heater 2 has a control unit 8 for controlling the mixing valve 6. The hot water supply unit 14 provided at the tip of the water supply pipe 3 is provided with a remote operation means 15 for operating the water heater 2 and a water supply valve 16, and the remote operation means 15 is provided with a timer for controlling the water supply valve 16. [Effect] Since the normal water supply pipe can be used as it is as the hot water supply pipe, the installation work can be shortened, and the construction cost and the facility cost can be significantly suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-plug hot water supply system.

[0002]

2. Description of the Related Art Recently, in a home, a water heater having a large capacity for hot water supply is installed, and hot water is supplied to a bathtub and other places where hot water is required (eg, kitchen, washroom, washing machine, etc.) through hot water supply pipes. Hot water supply systems are becoming popular.

[0003]

However, if such a system is to be newly provided, the hot water supply pipe from the water heater must be installed separately from the water supply pipe such as tap water, and the construction is relatively difficult. It becomes a large scale and the cost becomes high. The present invention has been made to solve the above problems, and an object of the present invention is to provide a multi-plug hot water supply system in which a normal water supply pipe can be used as it is as a hot water supply pipe.

[0004]

In order to solve the above-mentioned problems, the present invention is to connect the hot water outlet side of a water heater having hot and cold water mixing means to water supply pipes at a plurality of locations to be supplied with water or to supply water appropriately. A hot water supply unit having a remote operation means for operating the water heater and a water supply valve is provided in the water supply pipe at each hot water supply location. In the above configuration, the remote operation means may be provided with a timer for controlling the water supply valve. Further, in the above configuration, the hot water supply unit may be provided with a human body detection sensor for starting the valve opening / closing operation of the water supply valve. Further, the present invention is configured such that the hot water outlet side of a water heater having hot water mixing means is connected to a plurality of hot water taps provided at hot water supply points to supply water or hot water at an appropriate hot water temperature, The remote control means for operating the hot water tap and the water heater is provided. In the above configuration, the hot water tap may be provided with a water supply valve and a human body detection sensor for starting a valve opening / closing operation of the water supply valve. Also, in the hot water tap and the remote control means,
Display means for displaying the temperature of water or hot water to be supplied can be provided. As described above, in the present invention, a mixing valve can be applied to the hot and cold water mixing means, and the mixing valve adjusts the flow rate ratio of the water path and the hot water path that passes through the heat exchanger of the water heater to mix hot and cold water. In order to keep the hot water temperature constant, a heat responsive element for moving the valve body is provided.

[0005]

[Operation] At each hot water supply point, when the remote control means is operated to receive the supply of water or hot water, the water supply valve opens,
Water or hot water is supplied from the water heater to the water supply valve through the hot water mixing means and the water supply pipe. The hot water temperature of the hot water supplied can be adjusted from a low temperature to a high temperature by changing the flow rate ratio of water and hot water in the hot water mixing means by the remote operation means. 10
If it is 0%, water can be supplied as it is.

If a timer for controlling the water supply valve is provided in each hot water supply unit, the water supply valve can be opened for a set time, and a predetermined amount of hot water and water can be supplied.

Further, a plurality of hot water taps can be operated by remote control means to supply hot water of a desired hot water temperature. At this time, when a person puts a hand on the hot water tap, the human body detection sensor detects it and opens the water supply valve, so that hot water can be discharged. Further, the temperature of the hot water can be set in advance, and it can be easily confirmed by the display means whether or not the hot water having the set hot water is discharged.

The valve element is moved by the heat responsive element provided in the joint flow passage of the mixing valve, and the operation is performed to change the flow rate ratio between the water passage and the hot water passage so that the hot water temperature in the joint passage becomes constant. If a mixing valve is used, a constant hot water temperature can be easily obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multi-plug hot water supply system according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows in principle a multi-plug hot water supply system 1. This multi-plug hot water supply system 1 includes a water heater 2 and a plurality of hot water supply points on the hot water outlet side of the water heater 2 (for example, a washing machine, a bathroom,
It has a structure in which the water supply pipe 3 in the kitchen or washroom) is connected.

The water heater 2 has a mixing valve 6 as hot water mixing means in a hot water path 5 passing through the heat exchanger 4, and branches to the mixing valve 6 on the upstream side of the heat exchanger 4. The water path 7 is formed. Further, the water heater 2 has a mixing valve 6
It has a control unit 8 for controlling.

The mixing valve 6, for example, as shown in FIG. 2, has a valve body 1 formed by a heat responsive element 9 provided in a joint flow path.
0 is moved to change the flow rate ratio between the water passage 7 and the hot water passage 5, and an operation mechanism 11 such as an electric operation mechanism for biasing the heat responsive element 9 is provided. The heat responsive element 9 has a structure in which, for example, wax is encapsulated to cause thermal expansion and contraction, and the valve element 10 is formed by this expansion.
The moving direction of is to decrease the amount of hot water in the hot water path 5 and increase the amount of water in the hot water path 7. This thermal response element 9
Is configured to adjust the amount of bias by an actuation body 13 via a bias spring 12, and the actuation body 13 is configured to be actuated by an actuation mechanism 11 such as an electric actuation mechanism to move vertically in the drawing. is there.

Next, at the plurality of hot water supply points, a hot water supply unit 14 is provided at the tip of the water supply pipe 3, and the hot water supply unit 14 operates the remote controller 1 for operating the water heater 2.
5 and the water supply valve 16, and the remote control means 15 is provided with a timer for controlling the water supply valve 16. That is, in the hot water supply unit 14, as shown in FIG. 3, the operation unit 17 of the timer can set the time for which the water supply valve 16 is kept open in the operation range of the knob 18, while the water supply unit 14 is set in the operation range. The valve 16 is continuously opened. Further, reference numeral 19 is a temperature control knob for setting the temperature of the hot water together with the selection of water and hot water,
20 is an operation switch, 21 is a start switch,
Each of them is provided with an operation indicator lamp 22. Further, reference numeral 23 indicates an outlet of supplied water or hot water. When applied to the washing machine 24, the hot water supply unit 14 as described above can be configured as a hot water supply unit for a washing machine, although not shown. That is, the washing machine hot water supply unit includes a timer operation unit 17, a temperature control knob 19, and the like.
A connection port for a hose leading to the washing machine 24, running water detection means, a switch for washing wool, etc. can be provided.

The multi-plug hot water supply system according to the present invention is as described above, and its specific operation will be described. When the operation switch 20 of the hot water supply unit 14 is turned on at the point where water is to be supplied or hot water is to be received, the operation display lamp 22 corresponding to the switch selected up to that point is lit to know the current setting state. And in this state,
You can change the settings as needed.

In this state, the start switch 2
When 1 is turned on, the operation of the water heater 2 and the water supply valve 16 based on the set state starts. At this time, for example, the hot water supply unit 1
When hot water is selected by the temperature control knob 19 in 4, the remote control means 15 issues a corresponding operation command to the water heater 2 to operate the heating means. Heat exchanger 4
The temperature of the hot water flowing in the hot water path 5 is mixed with the clean water flowing in the hot water path 7 by the mixing valve 6 to lower the temperature,
The hot water is supplied from the water supply valve 16 of the hot water supply unit 14 at a place where hot water is required, flowing through the hot water supply pipe 6 from the joint flow path. The hot water supply temperature can be adjusted from a low temperature to a high temperature by changing the flow rate ratio between the water path 7 and the hot water path 5 in the mixing valve 6, and if the flow rate ratio of the water path 7 is 100%, tap water will be supplied. Can be supplied as is.

In the mixing valve 6, when the wax expands due to the hot water and the thermal response element 9 expands, the valve body 10 moves to the spring 14
Against the heat, the amount of hot water in the hot water path 5 is decreased and at the same time, the amount of water in the hot water path 7 is increased to lower the hot water temperature in the joint flow, and conversely, the hot water temperature is too low, and the heat responsive element When 9 contracts, the valve body 10 is moved upward to reduce the amount of water in the water passage 7, and the amount of hot water in the hot water passage 5 is increased to raise the temperature of the hot water in the joint flow channel, and thus the temperature of the hot water flowing in the joint flow channel is increased. Can be adjusted to a constant temperature set by the bias amount. That is, when the thermal response element 9 is biased downward by the operating mechanism 11, the set temperature can be lowered,
On the contrary, if the bias is upward, the set temperature can be raised.

Further, in the hot water supply unit 14, the time when the water supply valve 16 is kept open can be set by operating the knob 18 of the operation unit 17 of the timer, and the hot water can be supplied during the set time. Can be supplied in the required amount.

In this way, by operating the temperature control knob 19 of the remote control means 15 in the hot water supply unit 14 at each location, the water passage 7 in the mixing valve 6 is controlled.
By changing the flow rate ratio of the hot water path 5, it is possible to supply hot water having a desired hot water temperature or supply clean water as it is. Therefore,
Even when a new system is installed, it is not necessary to provide a hot water supply pipe, and the water supply pipe 3 already provided can be used as a hot water supply pipe.

Next, another embodiment of the multi-plug hot water supply system according to the present invention is shown in FIG. The same components as those of the multi-plug hot water supply system 1 in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted. The multi-plug hot water supply system 30 in this case is suitable when one hot water supply location has a large number of hot water taps and the like (for example, a common washroom such as a dormitory). That is, in the multi-plug hot water supply system 30, the hot water outlet side of the water heater 2 having the mixing valve 6 is connected to a plurality of hot water taps 31 provided at a hot water supply point (communal washroom).
The water supply pipes 3 are connected to each other to supply water or hot water having an appropriate hot water temperature.
And the remote control means 32 for operating the water heater 2 is provided.

In the above structure, the hot water tap 31 is provided with the water supply valve 16 and the human body detection sensor 33 for starting the opening / closing operation of the water supply valve 16. In addition to the infrared sensor, a sensor having a known configuration can be applied to the human body detection sensor 33. In addition, as shown in FIG. 5, the hot water tap 31 is provided with display means 34 for displaying the temperature of water or hot water set by the remote control means 32.

Next, the remote control means 32 collectively operates the plurality of hot water taps 31, and is installed at a place easy to operate, apart from the hot water taps 31 and the water heater 2. That is, as shown in FIG.
On the operation surface 35 of the operation switch 20, the water switch 36, the temperature adjusting means 37, and the display means 3 for displaying the temperature of water or hot water set by the temperature adjusting means 37.
4 are provided. In addition, the operation switch 20,
The water switch 36 is provided with the operation display lamp 22.

In the multi-plug hot water supply system 30 having such a configuration, when the operation switch 20 of the remote control means 32 is turned on, the operation standby state is entered and the operation display lamp 22 is turned on. Here, when the water switch 36 is turned on, the mixing valve 6
Is adjusted so that the flow rate ratio of the water path 7 is 100%, so that water is supplied to each hot water tap 31 from the hot water outlet side of the water heater 2 through the water supply pipe 3. In this state, when a person puts his or her hand on the hot water tap 31, the human body detection sensor 33
Is detected and the water supply valve 16 is opened, so that water can be supplied. When the hand is moved away from the hot water tap 31, the water supply valve 16 is closed and the water is automatically stopped.

Next, when it is desired to receive the supply of hot water, the temperature control means 37 of the remote control means 32 is operated. At this time, the desired hot water temperature can be adjusted while looking at the display means 34. The set hot water temperature can be confirmed by the display means 34 of each hot water tap 31.

[0023]

As described above, according to the present invention, since the normal water supply pipe can be used as it is as the hot water supply pipe, it is not necessary to install the hot water supply pipe separately from the water supply pipe such as water supply, and the installation work can be shortened. Together with this, construction costs and equipment costs can be greatly reduced.

[0024]

[Brief description of drawings]

FIG. 1 is a system diagram showing an embodiment of a multi-plug hot water supply system according to the present invention.

2 is a cross-sectional explanatory view of a mixing valve applied to the multi-plug hot water supply system shown in FIG.

FIG. 3 is a front view showing an appearance of a hot water supply unit in the multi-plug hot water supply system shown in FIG.

FIG. 4 is a system diagram showing another embodiment of the multi-plug hot water supply system according to the present invention.

5 is a front view showing the appearance of a hot water tap in the multi-plug hot water supply system shown in FIG. 4. FIG.

FIG. 6 is a front view showing the external appearance of remote control means in the multi-plug hot water supply system shown in FIG. 4.

[Explanation of symbols]

 1, 30 Multi-plug Hot Water Supply System 2 Water Heater 3 Water Supply Piping 4 Heat Exchanger 5 Hot Water Path 6 Mixing Valve 7 Water Path 8 Control Section 9 Thermal Response Element 10 Valve Body 11 Actuating Mechanism 12 Bias Spring 13 Actuating Body 14 Hot Water Supplying Section 15 , 32 remote control means 16 water supply valve 17 operation part 18 knob 19 temperature control knob 20 operation switch 21 start switch 22 operation display lamp 23 outlet 24 washing machine 31 hot water tap 33 human body detection sensor 34 display means 35 operation surface 36 water switch 37 Temperature control means

Claims (7)

[Claims] 1. A hot water heater having hot water mixing means is connected to the hot water supply pipes at a plurality of locations where hot water is to be supplied to supply water or hot water having an appropriate hot water temperature, and the hot water supply piping is provided at each hot water supply location. A multi-plug hot water supply system, characterized in that a hot water supply unit provided with a remote operation means for operating the water heater and a water supply valve is provided. 2. A multi-plug hot water supply system, wherein the remote control means according to claim 1 is provided with a timer for controlling a water supply valve. 3. A multi-plug hot water supply system, wherein the hot water supply unit according to claim 1 is provided with a human body detection sensor for starting a valve opening / closing operation of a water supply valve. 4. The hot water supply device having hot water mixing means is connected to a plurality of hot water taps provided at hot water supply points to supply water or hot water at an appropriate hot water temperature. A multi-plug hot water supply system comprising remote control means for operating a tap and a water heater. 5. The multi-plug hot water supply system according to claim 4, further comprising a water supply valve, and a human body detection sensor for starting a valve opening / closing operation of the water supply valve. 6. The multi-plug hot water supply system according to claim 4, wherein the hot water tap and the remote control means include a display means for displaying the temperature of water or hot water to be supplied. 7. The hot and cold water mixing means according to claim 1 or 4 is a mixing valve, and the mixing valve adjusts the flow rate ratio of the water path and the hot water path that passes through the heat exchanger of the water heater. A multi-plug hot water supply system comprising a heat responsive element for moving a valve body so as to keep the hot water temperature constant.