JPH07103571A - Priming device - Google Patents

Abstract

PURPOSE:To obviate the need for priming operation by a method wherein a connecting circuit communicating with a hot water supply circuit and a bath circuit is provided with a valve for opening and closing the connecting circuit and a check valve for preventing reverse water flow from the bath circuit to the hot water supply circuit and the opening and closing valve is so controlled as to be kept open for a specific time when the bath circuit is primed. CONSTITUTION:When a priming switch 7 of a remote control 6 is depressed, an opening and closing valve 5 provided in a connecting circuit 3 is opened by the signal from a control device 9. In this way priming water is supplied from a hot water supply circuit 1 to a bath circuit 2 for a specific time. At that time, since the connecting circuit 3 is provided with a check valve 4 for preventing reverse water flow from the bath circuit 2 to the hot water supply circuit 1, the reverse flow of hot water is prevented. The bath circuit 2 is also provided with a water flow detector to make a check if there is water in the bath circuit 2 and, if not, a circulating pump 10 is stopped and the opening and closing valve 5 is opened to supply priming water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a priming device for a water heater with a remote reheating function.

[0002]

2. Description of the Related Art A conventional priming device of this type will be described with reference to FIG.

In FIG. 5, 1 is a hot water supply circuit, 2 is a bath circuit, 10 is a bath circulation pump, 11 is a bathtub, 20a is a drain tap of the hot water supply circuit, 20b is a drain tap of the bath circulation pump,
21 is a silicon pipe.

In the above structure, the water drain plug 20a of the hot water supply circuit 1 and the water drain plug 20b of the bath circulation pump 10 are connected by a silicon pipe 21 to connect the water drain plug 20a of the hot water supply circuit 1 to each other.
By loosening the drain plug 20b of the bath circulation pump 10, the water in the hot water supply circuit 1 is poured into the bath circulation pump 10.

[0005]

However, in the priming apparatus as described above, when the user uses the bath, it is necessary to perform the priming work without fail, which is very troublesome.

Further, if the reheating mode is mistakenly set when the bathtub 11 is not filled with water, there is a problem that the priming water comes out and the priming work must be performed again.

The present invention solves the above conventional problems, and an object thereof is to eliminate the troublesome work of priming.

[0008]

In order to achieve this object, the priming device of the present invention is a water heater with a remote reheating function, and a connecting circuit for connecting the hot water supply circuit and the bath circuit, and the connecting circuit. An opening / closing valve that opens and closes, a check valve that prevents backflow from the bath circuit to the hot water supply circuit, and a control means that opens the opening / closing valve of the connection circuit for a certain period of time when the bath circuit is primed are provided.

Further, the apparatus further comprises a flowing water detecting device for detecting flowing water of the circulation pump of the bath circuit, and a priming water judging means for judging whether to reheat or priming by a signal from the flowing water detecting device. .

Furthermore, when the priming water is supplied, a control means for supplying the priming water at a preset temperature is provided.

Further, there is provided a hot water supply detecting device provided in the hot water supply circuit and a control means for controlling the on-off valve to be closed by a signal from the hot water supply detecting device.

[0012]

According to the present invention, with the above structure, the priming water is automatically supplied to the bath circuit, and the labor and time for use can be shortened.

When the bathtub is filled with water, reheating is started, and when the bathtub is not filled, priming water is automatically supplied.

Further, priming water having a preset temperature is supplied. If this is taking a bath, it does not make the bather feel uncomfortable.

When the hot water supply circuit is used, the supply of priming water to the bath circuit is automatically stopped, and hot water supply is given priority.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a block diagram of a first embodiment of a priming device according to the present invention. The hot water supply circuit 1 and the bath circuit 2 are connected by a connection circuit 3. The connecting circuit 3 has a check valve 4 for preventing the water in the bath circuit 2 from flowing back to the hot water supply circuit 1.
And an on-off valve 5. Bath circuit 2 has bathtub 11
A circulation pump 10 that circulates the water is provided. The remote control 6 for remote operation is provided with a priming switch 7. The on-off valve 5 and the remote controller 6 are electrically connected to the control device 8. The controller 8 has a priming switch 7
A control means 9 is provided for controlling the opening / closing valve 5 to open for a certain time when is pressed.

Next, the operation will be described. When the priming switch 7 of the remote controller 6 is pressed, the on-off valve 5 is opened by the signal of the control means 9, and at the same time the hot water supply circuit 1 to the bath circuit 2
The priming water is supplied for a certain period of time.

FIG. 2 shows a second embodiment of the priming device of the present invention. The description of the same parts as those in the first embodiment will be omitted, and different parts will be described.

In the bath circuit 2, a flowing water detecting device 12 is further provided.
Is provided. The on-off valve 5, the circulation pump 10, the flowing water detection device 12, and the remote controller 6a are respectively the control device 8a.
Electrically connected to. The control device 8a is provided with control means 14 for determining whether to perform a reheating operation or a priming operation when the reheating switch 13 is pressed.

Next, the operation will be described. When the reheating switch 13 provided on the remote controller 6a is pressed, the circulation pump 10 is activated and at the same time the flowing water detection device 12 is activated to check the presence / absence of water in the bath circuit 2. If there is water in the bath circuit 2, the reheating operation is started. If there is no water in the bath circuit 2, the circulation pump 10 is stopped, the on-off valve 5 is opened, and priming water is supplied from the hot water supply circuit 1 to the bath circuit 2 for a certain period of time. After a certain period of time, the on-off valve 5 is closed and the circulation pump 10 is activated again to start the reheating operation.

FIG. 3 shows a third embodiment of the priming device of the present invention. The description of the same parts as those described above will be omitted.

In FIG. 3, a hot water temperature setting device 16 is provided on the remote controller 6b. Next, the operation will be described. The reheating switch 13 on the remote controller 6b is pressed, and the hot water temperature setting device 16 sets the hot water temperature. The circulation pump 10 operates when the reheating switch 13 is pressed, and the flowing water detection device 12 confirms the presence or absence of water in the bath circuit 2.

If there is water in the bath circuit 2, the reheating operation is started. If there is no water in the bath circuit 2, the circulation pump 10 is stopped, the on-off valve 5 is opened, the burner 17 of the hot water supply circuit 1 burns for a certain period of time, and the hot water of the set hot water is supplied from the hot water supply circuit 1 to the bath circuit. Called to 2.

After a certain period of time, the on-off valve 5 is closed to stop the combustion of the burner 17 of the hot water supply circuit 1 and the priming is completed. After that, the circulation pump 10 operates again and starts the reheating operation.

FIG. 4 shows a fourth embodiment of the priming device of the present invention. The description of the same parts as those described above will be omitted.

The hot water supply circuit 1 further includes a hot water supply detection device 1
9 is provided and electrically connected to the control device 8c.
When the reheating switch 13 is pressed by the control device 8c, it is determined whether the reheating operation or the priming operation is performed, and when the running water detection device 19 in the hot water supply circuit 1 detects the running water, the priming operation is stopped. A control means 18 is provided.

Next, the operation will be described. When the reheating switch 13 of the remote controller 6b is pressed, the circulation pump 10
Is activated, and the presence / absence of water in the bath circuit 2 is confirmed by the running water detection device 12. If there is water in the bath circuit 2, the reheating operation is started.

If there is no water in the bath circuit 2, the circulation pump 10 is stopped, the opening / closing valve 5 is opened, and priming water is supplied from the hot water supply circuit 1 to the bath circuit 2 for a certain period of time. When the priming water is continuously supplied, when the hot water supply detection device 19 of the hot water supply circuit 1 detects running water, the on-off valve 5 is closed and the priming operation is in a standby state.

Further, when the hot water supply detector 19 stops detecting running water, the on-off valve 5 is opened and the priming water is restarted. After a certain period of time, the on-off valve 5 is closed and the circulation pump 10 is activated to start the reheating operation.

[0031]

As is apparent from the above description, the priming device of the present invention has the following effects.

(1) Since the priming water is automatically supplied to the bath circuit, the troublesomeness of using the bath is eliminated.

(2) Further, when the bathtub is full of water, the reheating is automatically started, and when not, the priming water is automatically supplied even if the reheating mode is mistakenly supplied. .

(3) Further, since priming water can be supplied at a preset temperature, the bather can comfortably take a bath.

(4) Further, when the hot water supply circuit is used, the supply of priming water is automatically stopped, so that the person using the hot water supply does not feel uncomfortable.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a priming device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a priming device according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a priming device according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a priming device according to a fourth embodiment of the present invention.

FIG. 5 is a block diagram of a conventional priming device.

[Explanation of symbols]

 1 Hot water supply circuit 2 Bath circuit 3 Connection circuit 4 Check valve 5 Open / close valve 8, 8a, 8b, 8c Control device 9, 14, 15, 18 Control means 12 Water flow detection device (of hot water circuit) 19 Hot water supply of hot water circuit Water detector

Claims (4)

[Claims] 1. A water heater with a remote reheating function,
A connecting circuit that connects the hot water supply circuit and the bath circuit, an open / close valve that opens and closes the connecting circuit, a check valve that prevents backflow from the bath circuit to the hot water supply circuit, and a priming circuit for priming the bath circuit. A priming device comprising a control means for opening the on-off valve for a certain period of time. 2. A flowing water detecting device for detecting flowing water of a circulation pump of a bath circuit, a priming water judging means for judging whether to reheat or priming by a signal from the flowing water detecting device, and the water judging means. 2. The priming device according to claim 1, further comprising control means for controlling so as to automatically supply priming water from the hot water supply circuit to the bath circuit when it is determined to priming water. 3. The priming device according to claim 2, further comprising control means for supplying the priming water at a preset temperature when the priming water is supplied to the bath circuit. 4. The priming device according to claim 1, 2 or 3, further comprising: a hot water supply detection device provided in the hot water supply circuit; and a control means for controlling the on-off valve to be closed by a signal from the hot water supply detection device.