JPS644014Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heating water supply device for a hot water heater.

Conventionally, this type of device has a housing that has a pair of connection ports connected to an external radiator, an upper water tank connected to the connection ports via each pipe, and a water tank connected to one of the pipes. It is equipped with an intervening heat exchanger and a burner for heating the heat exchanger, and also includes a water supply pipe that connects the inside of the water tank to an external water supply source, and an overflow type discharge pipe that connects to an external discharge port. type valves are known, but in this case, the valves inserted in the water supply pipes are generally of the type that can be opened and closed manually.
In such devices, the valve is first manually opened and then manually closed when water is supplied, but the user must wait for about two minutes, for example, outdoors in winter, until the valve is closed. It comes with the inconvenience of being troublesome.
Another possibility is to automatically supply water when the water level in the water tank drops, but this would allow water to be supplied automatically even if the water level drops due to a leak, making it easy to detect leaks. It comes with the inconvenience of being late.

The purpose of the present invention is to obtain a device free of such inconveniences, and each pipe line 4 is installed in a housing 3 having a pair of connection ports 2, 2 connected to an external radiator 1. , 4 to the connection ports 2, 2, a heat exchanger 6 interposed in one of the pipes 4, 4, and a gas burner or other device for heating the heat exchanger 6. burner 7, a water supply pipe 8 that connects the inside of the tank 5 to an external water supply source, and an overflow type drain pipe 9 that connects to an external drain port, the water supply pipe 8 It is characterized in that a metered water shutoff type valve 10 is intervened in which the water supply is manually set. In the illustrated case, a heat exchanger 11 and a burner 12 for supplying hot water are provided in the housing 3 separately from the heat exchanger 6 and burner 7, and a common exhaust duct 13 is provided above the heat exchanger 11 and burner 12. did. In the drawing, 14 is a pump for heating water circulation.
15 indicates a water level switch that detects a drop in the water level in the water tank 5 to a predetermined low water level;
5, a water supply indicator lamp (not shown) is turned on. The metered water shut-off type valve 10 is of a type that can set, for example, a predetermined amount of water, for example, the same amount as the capacity of the tank 5, with a single touch, and its details are as shown in the second figure, for example. That is, in the case shown, the valve 10 has a rotary cam 10d that engages a ball valve 10b on a valve hole 10a via a push rod 10c with a knob 1 on the outside thereof.
The ball valve 10b is rotatable between the knob 10e and the other via the gear train 10g by the water wheel 10f downstream of the ball valve 10b.
If the cam 10d is rotated in one direction through the cam 10d, the gear train 10 will be opened as shown by the solid line, and when the planned amount of water has passed, the gear train 10 will be opened by the water wheel 10f.
It was rotated to the other side via g to close it as shown by the chain line.

To explain its operation, when supplying water, first the valve 10 is set to a planned water volume, for example, the same volume as the capacity of the tank 5, and then when water supply is started, the tank 5 will be set to the scheduled water volume. After being replenished, the valve 10 automatically closes and the water supply is stopped. At this time, if there is a surplus in the tank 5, the surplus is simply discharged to the outside via the water supply pipe 9.

In this way, according to the present invention, a metered water stop type valve 10 is inserted into the water supply pipe 8, and when supplying water, it is sufficient to set the valve 10 to a predetermined amount of water in advance, and there is no need to hold the water until it is full. Also, unlike automatic water supply, abnormalities such as water leakage can be detected early due to the frequency of water supply setting work, and the advantages of manual and automatic systems are well combined, making it easy to use.

[Brief explanation of drawings]

Figure 1 is a cutaway front view of one example of the proposed device;
The figure is an explanatory diagram of one example of the fixed quantity water stop valve. 1... Heat radiator, 2, 2... Connection port, 3... Instrument housing, 4, 4... Piping, 5... Water tank, 6... Heat exchanger, 7... Burner, 8... Water supply Pipe, 9... Drain pipe, 10... Fixed amount water stop valve.

Claims (1)

[Scope of utility model registration request] a pair of connection ports 2 connected to an external radiator 1;
2, an upper water tank 5 connected to the connection ports 2, 2 via each pipe line 4, 4, and a heat exchanger 6 interposed in one of the pipe lines 4, 4. , a gas burner or other burner 7 that heats the heat exchanger 6
and a water supply pipe 8 that connects the inside of the tank 5 to an external water supply source, and an overflow type drain pipe 9 that connects to an external drain port, the water supply pipe 8 is manually operated. A water supply device for a hot water heater, characterized by intervening a fixed-quantity water cut-off type valve 10 that performs a water supply setting operation.