JPH0727356A - Controller for supplying hot water to plurality of terminals including dishwasher by means of one hot water supplying apparatus - Google Patents

Abstract

PURPOSE:To eliminate supply of hot water of a low temperature to a dishwasher by preferentially operating other terminal to an operation of the dishwasher. CONSTITUTION:When other terminals 8-11 are used during using of a dishwasher 2, a water temperature is detected by a water temperature sensor 12 based on a signal from a water quantity sensor 14 while an operation of the dishwater 2 remains continued, the operation is continued when the water temperature within a set temperature range of the dishwater 2, the operation is restarted when use of the terminals 8-11 is finished, and a set temperature of a hot water supplying apparatus 1 is controlled to a temperature needed by the dishwasher 2. When an operation switch of the dishwasher 2 is closed during use of the terminals 8-11, the operation of the dishwater 2 is continued when the water temperature detected by the sensor 12 is within a set temperature range of the dishwasher 2, or interrupted when it is out of the range, and the operation is started when the use of the terminals 8-22 is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for supplying hot water to other terminals including a dishwasher, such as a shower and a hot water tap in a kitchen, by using a single hot water supply device.

[0002]

2. Description of the Related Art FIG. 4 shows an apparatus for supplying hot water to other terminals including a dishwasher using one hot water supply machine. In FIG. 4, 1 is a water heater, 2 is a dishwasher, 3 is a circulation pump in the dishwasher 2, 4 is a hot water supply valve, and 5'is a water heater 1.
Remote control, 6 is a heater for heating in the dishwasher 2,
7 is a control circuit, 8 is a bath hot water tap, 9 is a shower, 10 is a hot water tap for a washbasin, 11 is a hot water tap for a kitchen. When the dishwasher 2 is operated independently, Hot water of this set temperature is supplied, for example, the hot water tap 10 for the washbasin
When the low temperature setting is made in and the use is started,
In the operation of the water heater 1, the set temperature of this one is prioritized. As a result, in the dishwasher 2, the hot water temperature becomes insufficient,
The mode is such that the heating heater 6 is driven to raise the temperature and then used. The operation flow of the dishwasher 2 is shown in FIG.

[0003]

Therefore, when hot water is supplied from one water heater 1 to a plurality of terminals, the dishwasher 2 is used.
Is inconvenient and consumes electric power to drive the heater 6 for heating, which is not energy saving.

It is an object of the present invention to improve the usability of a dishwasher and save energy in a device for supplying hot water to a plurality of terminals including a dishwasher using a single water heater.

[0005]

The constitution of the control device for supplying hot water to a plurality of terminals including the dishwasher according to the present invention by using one hot water supply device is as follows.

In a device for supplying hot water to a plurality of terminals including a dishwasher using a single water heater, a hot water supply pipe for a dishwasher and a hot water supply pipe for another terminal are separately provided to provide hot water for a dishwasher. A water temperature detection sensor is attached to the pipe, and a water flow detection sensor is attached to the hot water supply pipe to other terminals.If only the dishwasher is operating, this dishwasher will provide the hot water temperature necessary for dishwashing. When the water flow sensor detects that another terminal has been used while the dishwasher is operating, the temperature discharged from the water heater is set to the set temperature of this terminal. If the temperature detected by the water temperature detection sensor does not reach the temperature set by the dishwasher, the dishwasher operation is continued for a certain period of time as it is. The dishwasher operation is interrupted, and when the water flow sensor detects that the other terminals have been used, the dishwasher operation is restarted and the set temperature of the water heater is the temperature required by the dishwasher. When the operation switch of the dishwasher is turned on while using another terminal, the water temperature detection sensor detects the water temperature, and when this water temperature is the set temperature of the dishwasher, the dishwasher operation continues as it is. However, it includes a dishwasher including a control circuit for controlling the dishwasher to start operation when the water flow detection sensor detects the end of use of another terminal when the temperature is below the set temperature. A control device for supplying hot water to a plurality of terminals using a single water heater.

[0007]

The dishwasher and other terminals for one hot water supply device are connected through separate hot water supply pipes, and the hot water temperature can be set from each location by the remote control. The water heater operates while controlling the burner combustion amount so that the set water temperature is reached. In this operation, when the operation of only the dishwasher is started, the hot water temperature is controlled to a temperature required by the dishwasher, and the hot water is supplied through the hot water supply pipe. As a result, the hot water temperature required in the dishwasher is sufficient. On the other hand, the hot water temperature is set by remote control on other terminals,
When the terminal is used, this can be known from the signal from the water flow detection sensor, so the water heater gives priority to this and the dishwasher continues to operate for a certain period of time. If the temperature detected by the water temperature detection sensor does not reach the temperature set by the dishwasher even after this certain period of time, the operation of the dishwasher is interrupted and the use of other terminals is completed. When the water flow detection sensor detects, the operation of the dishwasher is restarted and the set temperature of the water heater is controlled to the temperature required by the dishwasher. Next, when the dishwasher operation switch is turned on while using another terminal, the water temperature detection sensor first detects the water temperature, and when this water temperature is the set temperature of the dishwasher, the dishwasher operation is continued. However, when the temperature is below the set temperature, the control is interrupted and stands by, and the operation of the dishwasher is started when the water flow detection sensor detects the end of use of another terminal. All of these controls are performed by the control circuit.

A water pressure sensor or a water amount sensor can be used as the water flow detection sensor.

[0009]

EXAMPLE FIG. 1 shows an example of the present invention. 1 is a water heater,
2 is a dishwasher, 3 is a circulation pump, 4 is a hot water supply valve, 5 is a hot water supply side control circuit, 5'is a remote controller, 7 is a control circuit incorporated in the dishwasher 2 for performing the control described later, and 8 is A bath hot-water tap, 9 is a shower, 10 is a wash-basin hot-water tap, and 11 is a kitchen hot-water tap.

Reference numeral 12 is a water temperature detecting sensor attached to the hot water supply pipe 13 'in the dishwasher 2, and 14 is a water amount detecting sensor attached to the hot water supply pipe 15 to the terminal.

In the case of the above embodiment, the following operation is performed under the control of the control circuit 7.

A. When only the dishwasher 2 is used The water heater 1 is controlled to the temperature required for the dishwasher 2 to wash the dishes. The operation flow at this time is as shown in FIG.

B. When another terminal is used while using the dishwasher 2, the water temperature detection sensor 12 detects the water temperature based on the signal from the water amount detection sensor 14 while the dishwasher 2 is operating, and this water temperature When the temperature is within the set temperature range of the washing machine 2, the operation is continued as it is, and when the temperature is out of the range, the operation is temporarily interrupted, the operation is restarted after a certain period of time, the water temperature is detected again by the water temperature detection sensor 12, and the temperature is still within the range. When outside, the interruption is continued as it is, the operation is restarted when the use of the other terminal is finished, and the set temperature of the water heater 1 is controlled to a temperature required by the dishwasher 2. The operation flow at this time is as shown in FIG.

C. When the operation switch of the dishwasher 2 is turned on while another terminal is being used. The water temperature detected by the water temperature detection sensor 12 after the operation of the dishwasher 2 is started is the set temperature of the dishwasher 2. When it is within the range, the operation is continued as it is, and when it is out of the range, the operation is interrupted and the terminal waits until the use of the other terminal is finished, and when the use of the other terminal is finished, the operation is started.

[0015]

As described above, according to the present invention, in a device for supplying hot water to a plurality of terminals including a dishwasher using one water heater, the operation of other terminals is prioritized over the operation of the dishwasher. As configured. As a result, the following effects are achieved.

A. Unlike the conventional case, hot water having a low temperature is not supplied to the dishwasher when used simultaneously with other terminals.
As a result, it is not necessary to separately incorporate a heater for heating, so that the cost and energy saving of the dishwasher can be reduced.

B. Since the dishwasher automatically suspends its operation, waits, or automatically restarts when another terminal is used, it is not necessary to perform a driving operation one by one, which is very convenient.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment according to the present invention.

FIG. 2 is an explanatory diagram of an operation flow of the water heater according to the present invention.

FIG. 3 is an explanatory diagram of an operation flow of the dishwasher embodying the present invention.

FIG. 4 is an explanatory diagram of a device that uses a single water heater to supply water to a plurality of terminals including a conventional dishwasher.

FIG. 5 is an explanatory diagram of an operation flow of a conventional dishwasher.

[Explanation of symbols]

 1 Hot Water Heater 2 Dishwasher 3 Circulation Pump 4 Hot Water Supply Valve 5 Control Circuit 5'Remote Control 6 Heater 7 Control Circuit 8 Bath Hot Water Tap 9 Shower 10 Washbasin Hot Water Tap 11 Kitchen Hot Water Tap 12 Water Temperature Detection Sensor 13 Hot Water Piping 14 Water amount detection sensor 15 Hot water supply piping to other terminals

Claims (2)

[Claims] 1. A device for supplying hot water to a plurality of terminals including a dishwasher using a single water heater, wherein the hot water supply pipe for the dishwasher and the hot water supply pipe of another terminal are separately piped to form a dishwasher. If the water temperature detection sensor is attached to the hot water supply pipe for water supply and the water flow detection sensor is attached to the hot water supply pipe to other terminals, and if only the dishwasher is operating, this dishwasher is the hot water required for dishwashing. When controlling the water heater to operate at a high temperature, and when the water flow detection sensor detects that another terminal has been used while the dishwasher is operating, the temperature at which the water heater discharges the water If the temperature detected by the water temperature detection sensor is not the temperature set by the dishwasher even after this certain time has elapsed, the dishwasher operation is continued to the set temperature. The operation of the dishwasher is interrupted, and when the water flow detection sensor detects that the other terminal has been used, the operation of the dishwasher is restarted and the set temperature of the water heater is required by the dishwasher. The temperature is controlled, and when the dishwasher operation switch is turned on while using another terminal, the water temperature detection sensor detects the water temperature, and when the water temperature is the set temperature of the dishwasher, the dishwasher operation is continued. A dishwasher that is provided with a control circuit that continues, interrupts when the temperature is below the set temperature and waits, and starts the operation of the dishwasher when the water flow detection sensor detects the end of use of another terminal. A control device for supplying hot water to a plurality of terminals including one hot water supply device. 2. A control device for supplying hot water to a plurality of terminals including the dishwasher according to claim 1, wherein the water flow detecting sensor is a water pressure sensor or a water amount sensor.