JP2007314951A - Water-supply emergency shutoff valve system capable of coping with earthquake - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water-supply emergency shutoff valve system which enables individual measures to be taken in an apartment house etc., so as to prevent a secondary disaster from occurring due to water leakage caused by the fall of water supply equipment, a water storage tank and the like, damage to piping, etc., and secure retained water, during earthquakes. <P>SOLUTION: This water-supply shutoff valve system comprises: a seismoscope which senses the earthquakes; a motor-operated valve which shuts off the supply of water; wiring and the like, which make them operate; and an indicating lamp which indicates a seismoscope operating condition. The water-supply shutoff valve system can prevent the secondary disaster from occurring due to the water leakage caused by the fall of the water supply equipment, the water storage tank and the like, the damage to the piping, etc., and secure the retained water, during the earthquakes. The water-supply shutoff valve system can be easily mounted not only in a new building but also in an existing apartment house etc. in which a shutoff valve has not been installed in the outlet piping of a water-supply service pipe, the water storage tank, etc. yet. The water-supply shutoff valve system can also be applied to the prevention of the secondary disaster caused by the water leakage in each house. Central monitoring can be performed by fetching a sensed signal, and remote monitoring can also be performed by utilizing a telephone line and the Internet. Thus, the water-supply shutoff valve system can be useful for the check of damage conditions etc. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a water supply device that can occur in the event of an earthquake, a water supply emergency shut-off valve system for the purpose of preventing secondary water leakage caused by overturning of storage tanks and piping damage, and securing retained water.

A system that combines emergency shut-off valves with controllers such as a seismic detector, flow meter, and pressure sensor as a method to prevent water supply pipes from being damaged and prevent water from flowing out during an earthquake and to secure water during a disaster. Exists.

The above system is installed in an elevated water tank or water receiving tank of an apartment house, and it is impossible to prevent water leakage from the elevated water tank to the secondary piping part, and the system has a dedicated shut-off valve and various advanced control functions. Because of the combination, the cost is high.

Moreover, in order to prevent the outflow of water from a water supply apparatus, the system which combined a water supply valve and a seismic device exists. In this system, the water supply valve is operated using a spring and a wire in response to a signal from the seismic device, and the system becomes large and requires installation space. It is.

Leakage is expected to cause not only the person concerned but also property other than the person, and it is urgently necessary to prevent secondary disasters caused by water leakage. In order to solve these problems, we have developed a water supply system, water storage tanks, and a simple system that can be used for each house.

In order to secure retained water during an earthquake, there is a method of installing a shut-off valve in the entrance / exit piping of the elevated water tank or water receiving tank. For example, the “emergency shutoff system for water tanks” disclosed in Japanese Patent Laid-Open No. 9-53738 has been devised as similar, but its introduction has not progressed because it is expensive to add to existing facilities. In the “Emergency stop device for electric water heaters and water storage tanks” registered in Utility Model No. 3015633, it is considered that installation space and installation work are difficult, and water supply equipment, water storage tanks, and the cost that can be accommodated for each house A simple system is necessary.
Japanese Patent Laid-Open No. 9-53738 “Emergency shut-off system for water receiving tank” Utility model No. 3015633 "Emergency stop device for electric water heater and water tank"

In order to solve the above-mentioned problems, a steel ball drop type seismic device that senses an earthquake, a motor-operated valve that shuts off water supply, a connecting cable for operating them, and a connecting device to protect the seismic device The present invention is characterized by a simple water supply shutoff valve system in which an indicator lamp indicating the operational status of the seismic device is attached to the storage box.

The present invention is characterized in that it can be constructed at an early stage and is easily maintained by using a general-purpose product.

Furthermore, central monitoring and remote monitoring can be performed by adding an external signal relay. Moreover, it is possible to operate a plurality of shut-off valves at the same time by using a plurality of contacts of the shut-off relay.

According to the present invention, it is possible to prevent a secondary water leakage caused by a water supply device that can occur in the event of an earthquake, water tanks overturning and damage to the piping, and to secure retained water. Additional installation is easy even in an existing apartment house where no shut-off valve is installed in the outlet pipe, and it can also be applied to prevent secondary water leaks occurring in each house.
In addition, since remote monitoring is possible by using a telephone line, the Internet, etc., it can be used for quick recovery at the time of a disaster, confirmation of damage status, and the like.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an outline of an emergency water supply shutoff valve system for earthquakes according to an embodiment of the present invention. In FIG. 1, a shutoff valve 4 is attached to a water supply pipe 2 connected to a water supply apparatus 1 and a water supply pipe 2 of a hot water supply pipe 3. A storage box 6 in which a seismic sensor 5 for detecting an earthquake is stored is fixed to a wall surface of a room in which the water supply device 1 is installed. The storage box 6 and the shutoff valve 4 are connected by a connection cable 7. When the seismic sensor 5 senses the set seismic intensity, the storage box 6 is energized and the shutoff valve 4 shuts off the water supply of the water supply pipe 2 and the indicator lamp 8 is turned on simultaneously. . About restoration, after checking the presence or absence of water leakage and confirming safety, the seismoscope 5 in the storage box 6 is reset and restored. At that time, the indicator lamp 8 is turned off. The shut-off valve 4 is preferably a spring return electric ball valve or a solenoid valve, but is not particularly limited thereto.

FIG. 2 is an enlarged view of the storage box 6 in which the seismic device 5 is stored. In the storage box 6, the seismic device 5, the terminal block 11, and the external signal relay 12 are arranged and connected by wiring. Yes. Further, the power supply line 9, the connection cable 7, and the external output signal line 10 are connected to the terminal block from the outside.

The external signal relay 12 can be used as an energization circuit for the shut-off valve 4 and can also output signals for central monitoring and remote monitoring. Moreover, it is possible to operate a plurality of shut-off valves simultaneously by adding a relay circuit.

The power supplied to the storage box 6 can correspond to both direct current and alternating current by changing the specifications of the shutoff valve 4, the seismic device 5, and the external signal relay 12.

Explanatory drawing which shows the operation state of the emergency water supply emergency shutoff valve system of the present invention The figure which shows the arrangement situation in the storage box of the water supply emergency shutoff valve system for earthquake

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water supply apparatus 2 Water supply piping 3 Hot-water supply piping 4 Shut-off valve 5 Shock absorber 6 Storage box 7 Connection cord 8 Indicator light 9 Power supply line 10 External output signal line 11 Terminal block 12 Relay for external signal

Claims (5)

This system is a simple water supply shut-off valve system that consists of a mechanical-type seismic sensor and a commercially available valve that opens and closes with an electrical signal (hereinafter referred to as an electric valve). Sensitivity seismic intensity is set to prevent secondary disasters caused by water leaks from small hot water heaters (hereinafter referred to as water supply devices) and connecting pipes during earthquakes. Water supply devices, elevated water tanks, water receiving tanks, water supply tanks (hereinafter referred to as water storage tanks) Water supply shut-off valve system that can secure retained water. A water supply shutoff valve system that can cope with water leaks in the entire house, such as water leaks from concealed pipes, by installing an electric valve on the secondary side of the water meter of the water supply pipe. A water supply shut-off valve system that can shut off water supply by operating multiple motorized valves simultaneously from a single seismic device. A water supply shutoff valve system that can support on-site monitoring and remote monitoring by adding indicator lights and external output relays.