SU1108182A1 - Water head-generating structures - Google Patents

Description

This invention relates to water pressure devices and can be used in water supply.

A water-pumping device is known, which contains a reservoir connected to the main conduit through an autonomous pump, and a pressure sensor at the calculated point of the conduit, included in the pump control circuit 1.

The closest to the invention to the technical essence and the achieved result is a water-pressure device containing a reservoir communicated with a main conduit by a supply-and-discharge pipeline, sensors of maximum and minimum liquid levels in the reservoir, an overflow pipe removed from the reservoir, and stop valves installed on a supply and discharge pipe and having a drive, the control circuit of which is connected to level 2 sensors.

A disadvantage of the known devices is the large inertia of the control system, as a result of which, when filling the tanks, water overflows into the drainage, which leads to irretrievable losses of 10-15% of purified water.

The purpose of the invention is to reduce operating costs and irretrievable water losses.

The goal is achieved by the fact that the device additionally contains two differential pressure sensors, installed parallel to the shut-off valves and connected to the drive control circuit.

The drawing shows a schematic diagram of the device.

The device comprises a tower-type support 1, on which a reservoir 2 is installed, in which the overflow pipe 3 is located, which is brought to the outside and communicates with the sewage system. Tank 2, in which the maximum level sensor 4 is installed

and a sensor of minimum water level 5, communicated with an inlet pinch pipe 6 with an in-line conduit 7. A stop valve 8 is mounted in the inlet and outlet pipe, having an actuator 9, in the control circuit of which sensors 4 and 5 are connected.

In parallel with the shut-off valve, the sensors 10 and 11 of the differential pressure are connected to the supply and discharge pipe 6 and are connected to the control circuit of the actuator 9 of the shut-off valves 8.

The device works as follows.

With a decrease in water consumption in the system, water from the main conduit through pipeline 6 enters tank 2, the level of water in which rises. When the maximum water level is reached, sensor 4 instructs the actuator 9 to close.

valve 8, and the filling of tank 2 is terminated.

If the water consumption in the system increases and, consequently, the pressure in the main conduit 7 drops, the sensor 10 is triggered and instructs the actuator 9 to open the valve 8.

When the water level drops to the minimum, sensor 5 is triggered, which instructs the actuator 9 to close the shut-off valves 8. When the pressure in the system and main water line 7 is restored, the sensor 11, which has a signal to the actuator 9, opens the shut-off valves 8, and the tank 2 is filled . Thus, the device operates in automatic mode.

The proposed device maintains a heat reserve of water in the tank, eliminates water losses associated with overflow, and does not require the intervention of operating personnel.

Claims (1)

(-57) A WATER-PRESSURE DEVICE, comprising a reservoir connected to a mains water supply-discharge pipe, sensors of maximum and minimum liquid levels in the tank, an overflow pipe removed from the tank, and shut-off valves installed on the supply-discharge pipe and having a drive, a circuit the control of which is associated with level sensors, characterized in that, in order to reduce operating costs and irretrievable water losses, it additionally contains two differential pressure sensors, mounted parallel to valves and connected to the control circuit of its drive.