JPH0415449A - Remained hot water feeding method for bath device - Google Patents

Abstract

PURPOSE:To improve a convenience in use and eliminate an arrangement of a special piping by a method wherein a water feeding procedure for supplying hot water in a bath tub, a hot water feeding procedure while performing an additional boiling and a water feeding procedure for newly increasing a water temperature and supplying hot water are selectively carried out. CONSTITUTION:A configuration body of a bath device 1 performs a controlling operation in response to a control instruction of a control part 17. This control part 17 may generate a control instruction corresponding to each of the sensing signals got from a water flow switch 15 and a hot water temperature sensor 16. The control part 17 is provided with an operating switch for use in selectively forming a hot water flow passage and it is constructed such that operations of 'remained hot water feeding', 'remained hot water additional boiling and feeding hot water' and 'additional hot water feeding' can be selected through a changing-over operation of the operation switch. Changing-over operation causes the first changing-over valve 7 and the second changing-over valve 13 to be changed over and then the hot water flow passage for supplying hot water in the bath tub 3 to a washing machine 8 and the hot water flow passage for supplying hot water from the hot water feeder 2 to the washing machine 8 are changed over.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for pouring remaining hot water in a bathtub into a washing machine or the like.

(Prior Art) Remaining hot water in bathtubs has traditionally been used for cleaning and laundry.

When using leftover hot water for washing, recently, as a means of supplying leftover hot water to a washing machine, a device such as a fully automatic bath system has been added with a device for injecting water into the washing machine. It has become.

(Problems to be Solved by the Invention) However, the above-mentioned device is still insufficient and not easy to use. That is, (1) If the remaining hot water is cold, it needs to be heated again in order to bring about the cleaning effect of hot water, but there is no such function.

■If there is not enough hot water left, it will become unusable. For this reason, it is necessary to install special piping from the water heater to the washing machine.

The present invention has been made in view of this problem.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a bath device in which a water heater equipped with a hot water supply heat exchanger and a reheating heat exchanger is connected to a bathtub by a hot water circulation pipe. In the hot water circulation pipe, the water injection procedure to switch and form the hot water supply path to the outside to supply hot water in the bathtub, and when supplying hot water to the outside,
A water injection procedure in which the heat exchanger for reheating and the burner for reheating are operated to raise the temperature of hot water in the bathtub, and the heat exchanger for hot water supply and the burner for hot water supply are operated to raise the temperature of the water. The water injection procedure is performed selectively.

(Function) According to the present invention, as needed, the water injection procedure supplies hot water in the bathtub, the water injection procedure supplies hot water while reheating, and the water is newly supplied by raising the temperature. Water injection procedures can be selectively performed.

In other words, the hot water supply path from the hot water circulation pipe to the outside is switched and formed by a predetermined means, and the hot water in the bathtub is directly supplied to the outside, or the reheating heat exchanger and reheating burner are activated to cool the bathtub. It is possible to supply hot water while raising its temperature, or to supply water while raising its temperature by operating a hot water supply heat exchanger and a hot water supply burner.

Therefore, regardless of the amount of hot water remaining in the bathtub or the temperature of the hot water, the desired hot water can be supplied to the outside, making it easy to use and eliminating the need for special piping.

(Example) Next, an example of a bath apparatus for carrying out the method for pouring remaining hot water into a bath apparatus according to the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates a bath device equipped with a means for pouring in remaining hot water, and in this bath device 1, a water heater 2 and a bathtub 3 are connected through a hot water circulation pipe 4.

The hot water circulation pipe 4 is composed of an outgoing pipe 5 which is a flow path for supplying hot water from the water heater 2 to the bathtub 3, and a return pipe 6 which is a flow path for refluxing hot water from the bathtub. A hot water supply pipe 9 to a washing machine 8 is branched and connected via a first switching valve 7 for switching and forming a hot water flow path.

The water heater 2 includes a hot water supply heat exchanger 10 and a reheating heat exchanger 1.
1. The hot water supply heat exchanger IO and the reheating heat exchanger 11 are connected to each other via a flow path cutoff valve 12 and a second switching valve 13. The return pipe 6 is connected to the second switching valve 13 via a forced hot water circulation means, that is, a circulation pump 14, and detects the state of hot water flowing to the hot water outlet side of the reheating heat exchanger 11. running water switch 15
The outgoing pipe 5 is connected via. Further, a hot water temperature sensor 16 is disposed in the return pipe 6 near the circulation pump 14 to detect the temperature of the hot water being returned.

The components of the bath device l perform control operations based on control commands from the control unit 17. The control unit 17 issues control commands based on detection signals from the running water switch 15 and the hot water temperature sensor 16, respectively.

The control unit 17 is also provided with an operation switch (not shown) for selectively forming a hot water flow path. It is configured so that it is possible to select between "fired hot water pouring" and "warm hot water pouring" operation. By performing the switching operation, the first
A hot water flow path for supplying hot water in the bathtub 3 to the washing machine 8 by switching the switching valve 7 and the second switching valve 13, and a hot water flow path for supplying hot water from the water heater 2 to the washing machine 8. The structure is designed to switch between the two paths.

Next, the bath device 1 and its method of pouring remaining hot water will be explained.

When the operation switch instructs the control unit 17 to perform the procedure of “filling in remaining hot water,” the control unit 17 switches the first switching valve 7 and the second
A control command is output to the switching valve 13, the first switching valve 7 is switched so that hot water is supplied to the washing machine 8, and the second switching valve 13 is switched so that hot water is supplied from the hot water circulation pipe 4 to the reheating heat exchanger 11. to form a hot water flow path. In this case, the control unit 1
A start command is output from 7 to the circulation pump 14, and the circulation pump 14 is started.

Under the action of the circulation pump 14, the hot water flows from the bathtub 3 through the return pipe 6, the circulation pump 14, the second switching valve 13, the reheating heat exchanger 11, and the running water switch 15, and reaches the first switching valve 7. It will be supplied to the washing machine 8 via the supply pipe 9.

The control unit 17 operates according to the signal from the running water switch 15.
You can check whether hot water is running or not.

That is, when hot water is in a flowing state, the circulation pump 14
continues to operate. On the other hand, if the hot water is not flowing, the operation of the circulation pump 14 is temporarily interrupted and the circulation pump 14 is stopped until the hot water is flowing. When the water injection is completed, the operation switch is turned off, the first switching valve 7 is switched to the circulation side of the bathtub 8, and the circulation pump 14 is stopped.

Next, when the control unit 17 is instructed to perform the “additional heating of remaining hot water” procedure, the first switching valve 7 is switched to form a hot water flow path on the washing machine 8 side according to the command from the control unit 17. Second
The switching valve 13 connects the hot water circulation pipe 4 to the reheating heat exchanger 11.
The circulation pump 14 is switched to form a hot water flow path.
starts.

The control unit 17 operates according to the signal from the running water switch 15.
After confirming that the water is running, the reheating heat exchanger 11
Then, the reheating burner is activated to start reheating operation.

In this case, the control unit 17 controls the reheating operation based on a signal from the hot water temperature sensor 16 regarding the temperature of the hot water being returned, heats up the remaining hot water to an appropriate temperature, and performs water injection. When the water injection is completed, the operation switch is turned off, the first switching valve 7 is switched to the circulation side of the bathtub 8, and the circulation pump 14 is stopped.

Next, when the control unit 17 is instructed to perform the "additional hot water pouring" procedure,
The first switching valve 7 is switched by the control unit 17 to form a hot water flow path on the washing machine 8 side, and the second switching valve 13 connects the hot water supply heat exchanger 10 to the reheating heat exchanger 11. The flow path is switched to form a flow path, the flow path cutoff valve 12 opens the flow path, and the circulation pump 14 is activated.

The control unit 17 operates according to the signal from the running water switch 15.
After confirming that the water is running, the hot water supply heat exchanger 10
to start hot water supply operation. In this case, the temperature of the hot water to be raised by the hot water supply operation may be set in advance in the control unit 17.

(Effects of the Invention) According to the present invention, the water injection procedure for supplying hot water in the bathtub, the water injection procedure for supplying hot water while reheating, and the new water heating procedure are added as needed. It is possible to select and perform a water injection procedure in which water is supplied by In other words, the hot water supply path from the hot water circulation pipe to the outside is switched and formed by a predetermined means, and the hot water in the bathtub is directly supplied to the outside, or the reheating heat exchanger and reheating burner are activated to cool the bathtub. It is possible to supply hot water while raising its temperature, or to supply water while raising its temperature by operating a hot water supply heat exchanger and a hot water supply burner.

Therefore, regardless of the amount of hot water remaining in the bathtub or the temperature of the hot water, desired hot water can be supplied to the outside, making it easy to use and eliminating the need for special piping.

[Brief explanation of drawings]

The figure is a system diagram showing an embodiment of a bath apparatus for carrying out the method for pouring remaining hot water into a bath apparatus according to the present invention.

Claims (1)

[Claims] In the hot water circulation pipe of the bath equipment, which connects the bathtub and the water heater equipped with a hot water heat exchanger and a heat exchanger for reheating, the hot water supply path to the outside is switched and formed. a water injection procedure for supplying hot water; a water injection procedure for raising the temperature of hot water in the bathtub by operating the reheating heat exchanger and reheating burner when supplying hot water to the outside; A method for filling remaining hot water in a bath device, characterized in that a water exchanger and a hot water supply burner are operated to selectively perform a water filling procedure in which water is heated while being heated.