JPS63189735A - Hot water supplier with automatic hot water pouring function - Google Patents

Abstract

PURPOSE:To make it possible to supply hot water pouring and additional hot water to a bathtub with simple constitution by a method wherein an open and shut valve is opened by the operation of the hot water pouring switch or the additional hot water supply switch of a remote controller and a timer controller is installed to return the valves to the shut state automatically. CONSTITUTION:At a remote controller 46 a hot water pouring switch 47 and an additional hot water supply switch 40 are installed. By the operation of the switch 47 or switch 48 the primary open and shut valve 30 and the secon dary open and shut valve 40 installed at a circuit 41 for pouring hot water to a bath are opened for a time previously set to supply hot water to a bathtub 23 and a timer controller 49 returning the valves to the shut state automatically is installed to supply hot water to the bathtub automatically. An open type tank 39 for isolation prevents the water in an inlet pipe 24 supplying the hot water to the bathtub 23 from back flow into a city water pipe. When the water level of the tank 39 exceeds a certain level, a float switch 42 shuts the valve 38 to control the amount of poured hot water.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a water heater equipped with a bath circulation circuit, which is equipped with a bath water pouring circuit and has an automatic hot water pouring function for pouring and adding hot water into a bathtub. It's about machines.

2. Description of the Related Art In recent years, a single water heater has been developed that can supply hot water, reheat a bath, and initially fill the water, and has been commercialized under names such as automatic water heaters.

An example of the above-mentioned conventional automatic water heater will be described below with reference to the drawings.

FIG. 3 shows a water circuit configuration diagram of a gas-fired automatic water heater. 1 is a bathtub body with a water heater, and 2 is a bathtub. Reference numeral 3 denotes a water inlet pipe connected to a city water pipe, and connected to the hot water supply heat exchanger 4 via a water amount detector 60. 5
6 is a hot water supply burner, 6 is a hot water outlet pipe led out from the hot water supply heat exchanger 4, and a temperature sensor 7 is installed in the middle of this hot water outlet pipe 6.
8 is a hot water supply tap, and 9 is a branch pipe branched from the middle of the hot water outlet pipe 6, with a solenoid valve 1o interposed in the middle, and its tip facing above the open tank 11. The open tank 11 is equipped with a float switch 12 and is connected to a three-way switching valve 14 via a connecting pipe 13.

Reference numeral 15 denotes an outgoing pipe having one end connected to the three-way switching valve 14 and the other end connected to the bathtub 2. A circulation pump 16 is installed in the middle of the outgoing pipe 15, and the three-way switching valve is connected from the bath H'J 2 side to the outgoing pipe 15. 14
A check valve 17 is provided to prevent flow to the side. 18
is a return pipe connected to the bathtub 2 and the bath heat exchanger 2o, a temperature detector 19 is arranged in the middle of the return pipe 18, and the hot water outlet side of the bath heat exchanger 2o is connected to the three-way valve 14. Connected. 21 is a bath burner.

Briefly explaining the operation of the water heater with automatic pouring function configured as above, the connecting pipe 13 led out from the open tank 11 is connected to the outgoing pipe 15 via the three-way switching valve 14, A circulation pump 16 installed inside the bathtub 2 supplies hot water to the bathtub 2.
On the other hand, hot water is supplied to the open tank 11 by a float switch 12 provided in the open tank 11, which prevents the circulation pump 16 from being turned on and off, making it possible to supply hot water to the bathtub 2 and reheat it. This is what I did.

(For example, Publication of Utility Model Publication No. 61-96248) Problems to be Solved by the Invention As mentioned above, the amount of water being poured into the bathtub 2 is being supplied while detecting the amount of water being poured at the port. When the hot water tap 8 is opened and the hot water is used for other purposes, the amount of hot water supplied to the bathtub 2 may naturally be less than the initially set amount. Further, the water fla detector 60 and the like have problems such as problems in ensuring durability and cost.

In view of the above-mentioned problems, the present invention provides a water heater with an automatic pouring function for a bathtub 2, which solves all the above-mentioned problems with a simple configuration and control means, and can easily add a refilling function. It provides:

Means for Solving the Problems In order to solve the above problems, the water heater with automatic tJA function of the present invention provides a bathtub that supplies hot water to the bathtub by operating a hot water pouring switch or a hot water addition switch of a remote controller. Equipped with a timer controller that opens an on-off valve branched to a hot water pouring circuit, supplies hot water from the bath hot water pouring circuit to the bathtub for a preset time, and automatically returns the on-off valve to a closed state. It is something.

According to the above-described configuration, the amount of hot water poured into the bathtub is set by the opening time of the on-off valve. The pouring amount does not decrease. In the case of a water heater that is directly connected to the water supply, where the main pressure from the city water pipe directly affects the water heater, there may be changes due to fluctuations in water pressure, but for hot water storage type water heaters that are required to use a pressure reducing valve. In the machine, the secondary water pressure, that is, the amount of water injected, is always controlled at a constant level by a pressure reducing valve, so pouring control using timer control ensures sufficient accuracy and provides the benefits described above. .

EXAMPLE Hereinafter, a water heater with an automatic pouring function according to an example of the present invention will be described with reference to the drawings. FIG. 1 is a water circuit configuration diagram in which a water heater with an automatic pouring function and a bathtub are connected, which is an embodiment of the present invention. 22 is the main body of the water heater with an automatic pouring function, and 23 is a bathtub. 24 is a water inlet pipe connected to a city water pipe, and is connected to a water inlet 27 of a heat exchange can body 26 of a water heater 22 with an automatic pouring function through a pressure reducing check valve 25. 28 is a burner, which supplies hot water heated by the heat exchange can body 26;
The hot water is supplied to the hot water via the hot water pipe 31. These circuits are used as a heat supply circuit for hot water supply. A bath heating heat exchanger 32 is provided in the heat exchange can 26 constituting the hot water supply heat supply circuit, and a bath circulation outgoing pipe 34 is provided with a bathtub 23 and a circulation pump 33 interposed therein.
, are connected by a return pipe 35 to form a bath circulation circuit. 36
is a circulation circuit filter, and 37 is a bathtub filter. On the other hand, it is branched from the hot water supply heat supply circuit, and has a first on-off valve 38, an open tank 39 for edge cutting, and a second on-off valve 40, and is connected to the bath circulation circuit to supply hot water to the bathtub 23. A bath pouring circuit 41 for supplying hot water is configured. 42 is a float switch that detects the liquid level in the open-type edge cutting tank 39, and 43 is an overflow pipe. 44 is a vacuum breaker valve provided in the hot water supply heat supply circuit, and 45 is a safety valve.

The operation of the water heater 22 with automatic pouring function configured as described above will be explained using the control sequence conceptual diagram shown in FIG. 2. Hot water pouring switch 47 to remote controller 46
, an additional hot water switch 48 is provided. This hot water pouring switch 47
Alternatively, the first on-off valve 38 interposed in the bath hot water pouring circuit 41 can be used for a preset time by operating the hot water switch 48.
At the same time, the second on-off valve 40 is opened, and hot water is poured into the bathtub 23.
The bathtub 23 is automatically filled with hot water by being equipped with a timer controller 49 that automatically returns hot water to the closed state.

The open tank 39 for edge cutting is connected to the hot water inlet pipe 2 of the bathtub 23.
4. Prevents backflow to the city water pipes. The float switch 42 closes the first on-off valve 38 to control the amount of molten metal poured when the liquid level in the open tank 39 for edge cutting reaches a certain level or higher.

As described above, according to this embodiment, the on-off valve is opened by operating the hot water pouring switch or the top-up switch, and hot water is supplied from the bath hot water pouring circuit to the bathtub for a preset time,
By installing a timer controller that automatically returns the on-off valve to the closed state, the following effects can be obtained.

(1) Hot water in the bathtub can be prevented from flowing backwards and entering the city tap water side.

(2) With a simple configuration, it is possible to pour hot water into the bathtub and reheat it, which are in high demand when using hot water in the bathroom.

(3) The amount of poured metal can be freely controlled by simple and inexpensive timer control.

(4) Even if a hot water tap for another purpose is used while pouring hot water into the bathtub, the amount of hot water poured will not be significantly affected.

(5) The pouring amount can be set extremely easily by changing the opening time setting of the on-off valve.

Effects of the Invention As described above, the present invention controls the opening and closing of the on-off valve provided in the bath hot water pouring circuit with a timer controller in conjunction with the operation of the initial hot water pouring switch and additional hot water switch of the remote controller, thereby controlling the amount of hot water poured. settings and automatic hot water pouring management, especially for water heaters that are required to use a pressure reducing valve.
It is possible to control the amount of poured metal with higher precision using a low-cost method. Furthermore, even if hot water is used from another hot water tap while hot water is being poured into the bathtub, the amount of hot water poured into the bathtub does not change significantly. Naturally, it is also conceivable that the opening time of the on-off valve can be arbitrarily adjusted depending on the capacity of the bathtub and the desired amount of additional hot water.

[Brief explanation of the drawing]

FIG. 1 is a water circuit configuration diagram connecting a water heater with an automatic pouring function and a bathtub according to an embodiment of the present invention, and FIG.
FIG. 3, which is a block diagram of the control system of the present invention, is a water circuit block diagram of a conventional gas-fired automatic water heater. 22...Water heater with automatic pouring function, 23...
・・Bathtub, 32 ・・・Bath heating heat exchanger, 33
... Circulation pump, 38 ... First on-off valve, 39 ... Open tank for edge cutting, 40 ...
...Second on-off valve, 41...Bath hot water pouring circuit, 46...Remote controller, 47...
...Hot water pouring switch, 4B...Additional hot water switch, 49...Timer controller. Name of agent: Patent attorney Toshio Nakao and one other person? 2
- Automatic Yu μ Coconut Old Affair Symbol 23 - One eyebrow rice 39 - One Shukoma sword 9 pieces 14 friends (formula, tank Δ0 - second Kaimon 4 / - Agul ache 4 - remote control roller - 49 - - Dimer J4xT Volume Q Figure 2

Claims (2)

[Claims] (1) A heat supply circuit for hot water supply, a bath circulation circuit formed by connecting a bath heating heat exchanger and a bathtub provided in the heat supply circuit for hot water supply via a circulation pump, and the heat supply circuit for hot water supply. A bath hot water pouring circuit which is branched and has an open tank for edge cutting and an on-off valve connected to the bath circulation circuit to supply hot water to the bathtub, and an initial hot water pouring switch and a remote controller for remote control from the bathroom. A hot water switch is provided, and the opening/closing valve is opened by operating this hot water pouring switch or this additional hot water switch, hot water is supplied from the bath hot water pouring circuit to the bathtub for a preset time, and the opening/closing valve is automatically opened/closed. A water heater with an automatic pouring function that is equipped with a timer controller that returns the valve to the closed state. (2) A water heater with an automatic hot water pouring function according to claim 1, wherein the opening time of an on-off valve corresponding to a hot water pouring switch and a hot water addition switch is arbitrarily adjusted and set.