JP2553626B2 - Water heater - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater that burns fuel to heat water, and relates to increasing the capacity of a water heater for hot water supply.

2. Description of the Related Art In the conventional water heater, hot water is taken out from the hot water supply port, and the temperature of the hot water is adjusted by a temperature controller.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention This conventional water heater is capable of taking only the same hot water temperature in all hot water supply pipes, and even a large-capacity water heater has a small hot water supply amount of 12 liters / minute. In addition, there was a problem that the amount of hot water supplied to the kitchen and bath was very different, making it difficult to adjust the amount of hot water supplied.

Means for Solving the Problems In order to solve the above problems, the present invention provides one regular water heater, one or more auxiliary water heaters of the same type other than that, and each water heater. A connected hot water supply pipe, a normal hot water supply pipe connecting the hot water heater to a small capacity hot water supply place such as a kitchen and a washroom, and a secondary hot water supply pipe connected to a high capacity hot water supply place such as a bath and shower. The hot water supply pipe, the bypass pipe connecting the main hot water supply pipe and the sub hot water supply pipe, the on-off valve arranged in the bypass pipe, and the water amount detector provided in the main hot water supply pipe on the downstream side of the bypass pipe In addition to controlling the hot water supply temperature from the water heater, if the main hot water supply pipe and the sub hot water supply pipe supply different temperatures, the on-off valve is closed, and the water amount detector does not detect the amount of water in the main hot water supply pipe. Open the open / close valve when supplying hot water only to the hot water supply pipe and when the hot water supply temperature is the same for the main hot water supply pipe and the auxiliary hot water supply pipe It consists of one or more remote control boards to control.

Action Make sure that the water entering from the water supply pipe enters the normal hot water supply pipe after being heated by the normal water heater, and similarly, the water entering from the water supply pipe can enter the auxiliary hot water supply pipe after being heated by the auxiliary water heater. It is configured.

If the remote control panel requires different hot water supply temperatures for small capacity hot water supply locations such as kitchens and washrooms and large capacity hot water supply locations such as baths and showers, the water quantity detector detects the water quantity of the normal hot water supply pipe. If so, hot water is supplied to the respective places by closing the open / close valve provided in the bypass pipe, and if not detected, the open / close valve is opened and the main hot water pipe is also sent to the sub hot water pipe through the bypass pipe to supply a large amount of hot water.

In addition, when the same hot water supply temperature is requested from the remote control panel to a small capacity hot water supply place such as a kitchen or a washroom and a large capacity hot water supply place such as a bath or shower, regardless of the detection of the amount of water in the regular hot water supply pipe by the water amount detector. The on-off valve is opened and hot water is supplied to each place.

Example An example of the water heater of the present invention will be described with reference to the drawings.

In the figure, 1 is a normal water heater, 2 is a sub water heater, 3 is a water supply pipe, 4 is a normal hot water supply pipe, 5 is a sub hot water supply pipe, 6 is a bypass pipe, 7
Is an opening / closing valve, 8 is a water amount detector, 9 is a hot water supply port for a kitchen, 10 is a hot water supply port for a washroom, 11 is a hot water supply port for a bath, 12 is a shower, and 13 is a remote control panel. Then, the water entered from the water supply pipe 3 enters the normal hot water supply pipe 4 after being heated by the normal water heater 1, and similarly, the water entered from the water supply pipe 3 is heated by the auxiliary water heater 2 and then the sub hot water supply. It is configured to enter the tube 5.

Next, when requesting different hot water supply temperatures from the remote control panel 13 for the small capacity hot water supply locations of the kitchen hot water supply opening 9 and the washroom hot water supply opening 10 and the bath hot water supply opening 11 and the shower 12 high capacity hot water supply location, When the water amount detector 8 provided in the regular hot water supply pipe 4 on the downstream side of the bypass pipe 6 detects the amount of water in the regular hot water supply pipe 4, the on-off valve 7 arranged in the bypass pipe is closed to supply hot water to each place. If not detected, the open / close valve 7 is opened, and the hot water supply pipe 4 is also sent to the sub hot water supply pipe 5 through the bypass pipe 6 to supply a large amount of hot water.

Further, when the same hot water supply temperature is required for the small capacity hot water supply location and the large capacity hot water supply location by the remote control panel 13, the water amount detector 8
Regardless of the detection of the amount of water in the normal hot water supply pipe 4, the open / close valve 7 is opened to supply hot water to each place.

Effects of the Invention With the above-described configuration, the present invention has the following effects.

(1) It is possible to request different hot water supply temperatures to different places from the remote control panel and supply different hot water temperatures.

(2) When supplying hot water to a hot water supply site such as a bath or shower, a large amount of hot water can be supplied from two or more water heaters through a bypass pipe.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a hot water supply device according to an embodiment of the present invention. 1 ... Regular water heater, 2 ... Sub water heater, 3 ... Water supply pipe, 4 ...
… Regular hot water supply pipe, 5 …… Sub hot water supply pipe, 6 …… Bypass pipe, 7…
… Open / close valve, 8 …… Water volume detector, 13 …… Remote control panel.

Claims (1)

(57) [Claims] 1. A normal water heater, one or more auxiliary water heaters of the same type installed in other than that, a water supply pipe connected to each water heater, a normal water heater and a kitchen. And a normal hot water supply pipe connecting a small capacity hot water supply place such as a toilet, a sub hot water supply pipe connecting a sub water heater and a large capacity hot water supply place such as a bath or shower, and a main hot water supply pipe and a sub hot water supply pipe. A bypass pipe to be connected, an on-off valve arranged in the bypass pipe, a water amount detector provided in the normal hot water supply pipe downstream of the bypass pipe, and a hot water supply pipe for controlling the hot water supply temperature from both water heaters When supplying different temperatures to the auxiliary hot water supply pipe and the auxiliary hot water supply pipe, close the open / close valve and supply water only to the auxiliary hot water supply pipe without detecting the water amount of the normal hot water supply pipe by the water amount detector, or to the normal hot water supply pipe and the auxiliary hot water supply pipe. If the hot water temperature of the Location.