Device for regulating the supply of water in the water tower

 

(57) Abstract:

Usage: utility services for water supply of settlements and various industrial enterprises. The inventive device for regulating the supply of water in the water tower contains a membrane-type sensors with closed electrical contacts, isolated from the external environment. The sensors are located at the same depth in the water tower tank. 3 Il.

The invention relates to utilities and used for water supply of settlements and various industrial enterprises.

The famous water tower, in which tank to regulate the flow of water placed at different depths, two sensors: one for the top water level and the other for the lower water level. Because these sensors are made with exposed electrical contacts, the upper level sensor water at subzero temperatures, when water freezes, stops working. Pump for water supply is not turned off, it continues to pump the water, the tank is filled with water, and she begins to flow through the upper edge. To eliminate this drawback, the upper level sensor water re

This sensor is based on the accumulation in the case of compressed air and gas resulting from electrolysis of water by passing an electrical current through the contacts. The sensor in advance is not regulated under a certain pressure of water, so it is not possible when it is used to pre-determine the accumulation of water in the tank turret to the desired level.

An object of the invention is to achieve stable operation of the sensors regulating the water supply to the water tower under any climatic and weather conditions.

The technical problem is solved in that known device, containing two contact sensor located in the tank towers, wires connecting the sensors with an electrical circuit that manages the installation of the water in the water tower, equipped with cargo and floats connected through the cables, and the sensors are located on the ropes and installed in the tank at the same depth and each of them has a hermetic chamber with a membrane, a counterbalancing spring mounted on the surface of the membrane from the outside, screw regulating the tension of the counterbalancing spring, insulating rod connecting the inner IG.1 shows a water tower tank with sensors in Fig. 2 - the sensor in two projections, Fig. 3 the scheme of inclusion of sensors in an electrical circuit.

A device for controlling water supply to the water tower contains (Fig. 1) water tank 1, the upper level sensor water 2 having a hermetic chamber 3 (Fig.2), the membrane 4, a counterbalancing spring 5, a screw 6, the electrical contacts 7, the insulating rod 8, the insulating sleeve 9, the wire 10, the bracket 11, the lower level sensor water 12, which by design and principle of operation tozhdestvo the upper level sensor water and has with him the same details, but in Fig. 3 they are marked in other figures, namely: the hermetic chamber 13, a diaphragm 14, a balancing spring 15, the screw 16, the electrical contacts 17, the insulation rod 18, an insulating sleeve 19, wire 20, the bracket 21.

In order to keep the sensors in the tank at a certain depth, they are attached to the cables 22 with weights 23 and lowered to the bottom of the tank 24; sensors in the tank have the vertical position of the floats 25, tied to the ends of the cable 22. Both sensors in the tank are at the same depth, but each of the sensors is adjusted by varying the pressure of the water column.

The device operates as follows. For first the switch 28 put in position 29 (automatic mode), there is a chain of operation of the actuator 31: phase 0, the contact button 32, the relay contacts 33', the switch contacts 28 and 29, the contacts of thermal relay 34, the winding of the starter 31, phase 3; the starter is activated and the contacts 31 includes the circuit of the motor 35; the motor begins to operate and the associated pump (not shown) to pump water into the tank 1 water tower, and when the water reaches up to the lower level sensor water 12, the membrane 14 of the probe from the water pressure overcomes the tension of the balancing spring 15, fall inside of a sealed chamber 13 and through the insulation rod 18 will close the electrical contacts 17 are formed chain: +plus, electrical contacts 17, the relay coil 36, negative; the relay is actuated and the contacts 36 prepares the circuit of relay 37; water constantly continues to flow into the tank 1, and when it will reach the intended top level, the sensor triggers 2 (exactly the same as in the sensor 112 and turns on the circuit of the relay 37: + plus, electrical contacts 7, winding of relay 37, the relay contacts 36', minus -, relay operates and locks through its own contacts 37'; at the same time through the contacts 37 is activated circuit of the relay 33, the relay is actuated and the contacts 33' interrupts the circuit of the starter 31, he is de-energised and the contacts 31" disables >/P>As the flow of water in the tank 1, the water level begins to decrease, the water pressure on the membrane 4 of the upper level sensor water 2 will decrease the tension of the balancing spring 5 in this case will be reduced and will return the membrane to its original position, pulling at the same time insulated rod 8, the electrical contacts 7 will open, but the relay 37 in this circuit is not de-energized, it will eat still in its contacts 37', until, until you decrease the water pressure on the membrane 14 of the lower level sensor water 12 so that in order for the membrane to come in its original position as it was in the first case, and this will happen with further lowering of the water level in the tank 1. Coming to the original position, the membrane 14 through an insulating rod 18 releases the electrical contacts 17, they will open, it breaks the circuit to the power relay 36, following this, the contacts 36' opens, the relay 37 is de-energized and its contacts 37" opens the power circuit of the relay 33, the relay is de-energized and the contacts 33' again to close the power supply circuit of the actuator 31, and the contacts 31" again will turn the motor 35, thereby pumping water in the water tower again still.

The device can translate mode rechniques 35 through the start button 38 and the stop button 32, as in the usual way.

Electric diagram of the device in automatic mode, powered by AC adapter included through the primary winding I of the transformer 39 and the fuse 40 in the electrical network 26; from the secondary winding II is removed low voltage and is fed to the rectifier element 41, and further through the wires + "plus", "minus" in the electrical control circuit.

This device eliminates the frequent switching on and off of the motor, which reduces the load on the grid at motor start-up.

The main advantage of membrane-type sensors is that their electrical contacts are isolated from the external environment, so they can be used in any fluid, not conducting an electric current.

The limit of the sensor from the water pressure can be set in advance, even outside the tank 1, it is necessary to load the membrane 4 of the sensor 2, the weight of which will correspond to the height of the pressure of the water column, and the screw 6 to adjust the tension of the balancing spring 5 so that when the minimum turns of the screw 6 in both sides of the contacts 7 was closed and trips, this is Timoti the same adjustment is exposed and the sensor 12 of the lower water level.

A device for controlling water supply to the water tower containing two contact sensor located in the tank towers, wires connecting the sensors with an electrical circuit that manages the installation of the water in the water tower, characterized in that the device is equipped with cargo and floats are connected through the cables, and the sensors are located on the ropes and installed in the tank at the same depth and each of them includes a sealed chamber with a membrane, a counterbalancing spring mounted on the surface of the membrane from the outside, screw regulating the tension of the counterbalancing spring, and an insulating rod, connecting the inner surface of the membrane with electrical contacts located inside the sealed chamber.

 

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