RU71348U1 - EMERGENCY STOP DEVICE FOR WATER SUPPLY - Google Patents

Abstract

The device relates to water supply. The device is designed to prevent flooding of premises during emergency operation of the water supply system, for example, when a pipeline ruptures, valves fail, leakage of joints, etc. The device contains safety valves installed on the pipeline for supplying water to the room, a control unit electrically connected to the safety valves and water sensors. Water sensors are installed in places where water is likely to appear. When a leak occurs, the water sensors transmit a trip signal to the control unit, which turns off the electrical power to the safety valves, which closes the valves. The use of safety valves closed in the absence of electrical power increases the reliability of the device. Safety valves can be made in the form of a normally-closed solenoid valve.

Description

The claimed technical solution relates to water supply and can be used to protect against flooding of the premises during emergency operation of the water supply system, for example, in case of a pipe rupture, valve failure, leakage of joints, etc.

Known sanitary systems for water supply of residential and public buildings, containing a pressure head water supply pipeline with an extensive network of individual water consumers equipped with water-folding fittings (Isaev V.N., Sasin V.I.The device and installation of sanitary systems of buildings. - M. : Higher school, 1989, p. 214, fig. 115).

A disadvantage of the known systems is the possibility of flooding the premises during an emergency operation of the water supply system, for example, when a pipeline ruptures, valves fail, leakage of joints, etc., due to the lack of emergency shut-off devices for water supply when leaks occur.

Also known is a locking device for eliminating emergency flooding of premises, comprising a housing in the form of a cylindrical chamber and located perpendicular to the axis of the chamber of the pipe, the ends of the chamber coaxially connected to the input and output adapters, the inner diameters of the passage openings of which are smaller than the inner diameters of the holes of the ends of the chamber, and a locking element in the form of a float located with the possibility of interaction with the inner surface of the passage opening is freely placed in the chamber a travel adapter (RF patent No. 2110004, F16K 31/22, 1998).

A disadvantage of the known device is its low reliability due to the possibility of flooding the premises in the event of water leaks as a result of rupture of the pipeline, failure of the fittings, violation of the tightness of the connections, etc.

Another disadvantage of the device is the low functionality of the device - the lack of signaling about leaks.

As the closest analogue, a device was selected for emergency shutdown of water supply during an abnormal mode of operation of the water supply network, containing water-folding fittings installed on the supply pipe, in front of which safety shut-off valves are installed, made with the possibility of actuation in the presence of water leaks (RF patent, No. 2232852, Е03С 1 / 242).

A disadvantage of the known device is its low reliability due to the inoperability of the device during interruptions in the supply of electric power, when the electric power is cut off by a circuit breaker due to overload of the electric network, which can be caused by water entering the conductive contacts during emergency operation of the water supply system (when the pipeline ruptures and etc.), and the limited time to provide protection against flooding in an emergency mode of operation of the water supply network, in the case of device operation ervnogo power source. Other disadvantages of the device include the possibility of electric shock to humans, pets, etc. through open floor electrodes of water sensors.

The objective of the proposed technical solution is to create a functional, reliable, safe device for emergency shutdown of the water supply to prevent flooding of the room during emergency operation of the water supply network (in case of a pipeline rupture, valve failure, leakage of the connections, etc.).

To achieve this objective, a device is proposed for emergency shutdown of water supply from the water supply network, containing safety valves installed on the pipeline for supplying water to the room, electrically connected to the control unit, which ensures its operation when there are signals about leaks from sensors located in the places of the likely occurrence of water, this safety valve is in the closed state in the absence of electrical power.

The device operates as follows.

When the water supply network operates in normal mode, the control unit provides electric power to the safety valves, while the latter is in the open state.

In the event of an emergency (pipeline rupture, valve failure, leakage of connections, etc.), water gets to the contacts of the water presence sensor, a trip signal is transmitted to the control unit, which cuts off the power supply to the safety valves installed on the supply pipe , which leads to the closure of safety valves.

The use of safety valves closed in the absence of electrical power increases the reliability of the device. When the room’s electric power is cut off by a circuit breaker due to the room’s electrical network overload caused by water entering the conductive contacts, the safety valves close, which prevents flooding of the room in the event of an emergency (when the pipeline ruptures, etc.). In case of interruptions in the power supply of the building, premises, etc. safety valves also close, which prevents possible leaks.

Safety valves can be made in the form of a normally-closed solenoid valve.

It is recommended to install safety valves on the riser for supplying water to the room. It is possible to install safety valves on the pipeline for entering water into the building, for example, for small houses.

Safety valves may further include a manual actuator to manually control the safety valves.

To improve security, the device can be powered by AC power through a power supply.

To increase reliability, the device can be additionally connected to a backup power source.

To increase safety, the water presence sensor can be made of a closed design, which excludes contact with live contacts, but does not prevent water from penetrating the sensor contacts.

To improve ease of use and configuration, the control unit may further comprise an indication unit about the operating modes of the device, the state of sensors, etc.

The device may contain a communication unit with sensors for the presence of water, while the sensors are made in the form of separate devices transmitting information about the operation via wireless methods for transmitting information, for example via radio channels, using BlueTooth technology, etc.

To increase the functionality of the device may contain a communication unit with external control devices.

The device may be made with power from external monitoring and control devices and may further comprise a communication unit with the above devices.

Claims (11)

1. A device for emergency shutdown of the water supply, containing safety valves installed on the pipeline for supplying water to the room, electrically connected to the control unit, which ensures its operation upon receipt of signals about leaks from sensors located in the places of the likely occurrence of water, characterized in that the safety valves are in the closed state in the absence of electrical power. 2. The device according to claim 1, characterized in that the safety valves are installed on a riser for supplying water to the room. 3. The device according to claim 1, characterized in that the safety valves are installed on the pipeline for entering water into the building. 4. The device according to claim 1, characterized in that the safety valve further comprises a manual drive. 5. The device according to claim 1, characterized in that the power supply to the device is made from an alternating current main through a power supply unit. 6. The device according to claim 1, characterized in that the device is additionally connected to a backup power source. 7. The device according to claim 1, characterized in that the water sensor is made of a closed design, eliminating contact with current-carrying contacts, but not preventing water from penetrating the sensor contacts. 8. The device according to claim 1, characterized in that the control unit further comprises an indication unit. 9. The device according to claim 1, characterized in that the device comprises a communication unit with sensors for the presence of water, while the sensors are made in the form of separate devices transmitting information about the operation through wireless methods of transmitting information. 10. The device according to claim 1, characterized in that the device comprises a communication unit with external monitoring and control devices. 11. The device according to claim 1, characterized in that the device is made with power from external monitoring and control devices and further comprises a communication unit with the above devices.