JPS6231818Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water heater used in electric water heaters, solar thermal storage tanks, integrated thermal storage tanks, boilers, and other hot water heaters.

In the past, there have been some similar examples of other stoves that prevent danger by closing valves during vibrations, but these have complicated structures.

This invention aims to prevent water leakage due to earthquakes or corrosion, electric shock accidents, and wastage of water due to water leakage with a simple structure. A main body bottom plate having a downward slope, a detection means attached to a portion adjacent to the hole to detect water, and an operation that receives a signal from the detection means and issues an alarm, closes a water supply valve, and opens a drain valve. The present invention is characterized in that it is provided with a controller.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In FIG. 1, 1 is a water heater, and a water supply pipe 3 and a drain pipe 4 attached to a tank 2 of the water heater 1 are provided with a water supply valve 5 and a drain valve 6, respectively. 7 is a hot water supply pipe. Reference numeral 8 denotes a bottom plate of the exterior of the water heater 1, which has a hole 9 in the center, and the bottom plate 8 has a downward slope of 30 degrees or more with respect to the hole 9. subject to water leakage due to cracks, holes, etc. Reference numeral 10 denotes a sensing element attached to the vicinity of the hole 9, which senses the water leakage based on the conductivity of the water.
Reference numeral 11 denotes a controller which, when receiving a signal from the sensing element 10, issues an alarm to notify of an accident, closes the water supply valve 5, and opens the drain valve 6. Therefore, in the event of an earthquake or corrosion, if water leaks due to cracks or holes in the piping connections or tank of the water heater 1, this can be immediately reported, and accidents such as water flooding and electric shock can be prevented.

Note that a lid or a valve may be provided on the hole 9 of the bottom plate 8 so that an alarm is issued when the amount of water reaching the vicinity of the hole exceeds a certain level. Alternatively, the power to the water heater may be turned off when water reaches the vicinity of the hole.

As shown in FIG. 2, a discharge pipe 12 may be installed in the hole 9 of the bottom plate 8, and the outlet of the discharge pipe 12 may be made freely movable and led to a drain groove 13.

Further, as shown in FIG. 3, a float 14 is used instead of the sensing element, and is housed in a chamber 15 provided below the hole 9 of the bottom plate 8, and a drain pipe 1 is placed in the chamber 15.
It is also possible to have a structure in which 2 are connected.

As described above, according to the present invention, the simple structure of the main body bottom plate having a hole through which water drains and having a downward slope with respect to the hole, and the detection means provided in the vicinity of the hole in the bottom plate, Water leakage caused by earthquakes, corrosion, etc. can be detected immediately and with high sensitivity, and water flooding, electric shock accidents, and water wastage due to water leakage can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention;
FIGS. 2 and 3 are sectional views of main parts showing other embodiments, respectively. 1... Water heater, 2... Tank, 3... Water supply pipe,
4... Drain pipe, 5... Water supply valve, 6... Drain valve, 8
... Bottom plate, 9 ... Hole, 10 ... Sensing element, 11 ...
...Controller, 14...Float.

Claims (1)

[Scope of utility model claims] A main body bottom plate having a hole through which water can drain and having a downward slope with respect to the hole, a detection means attached to a portion adjacent to the hole to detect water, and an alarm upon receiving a signal from the detection means. A water heater equipped with a controller that operates to close a water supply valve and open a drain valve.