Device for magnetic treatment of liquids

 

(57) Abstract:

The invention relates to magnetic treatment of liquids and can be used for intensification of various technological processes, such as prevention of scale on the heating surfaces of heat exchangers, purification and clarification of process water. The device consists of a three-phase winding, a stationary rotor housing, the magnetic circuit of the stator, the sealed chamber disposed between the rotor and stator fixing the rotor racks, dynamic pressure sensor, switch, opto-thyristor controls, zero wire, amplifier, comparator. The dynamic pressure sensor is mounted in the center of the outlet pipe and is connected to the amplifier through the comparator, and the output of the amplifier controls opto-thyristor. The technical result consists in increasing the energy performance and stabilization at different fluid flow rates. 3 Il.

The invention relates to magnetic treatment of liquid and can be used for intensification of various technological processes, such as the prevention of scale on the heating surfaces of heat exchangers, cleaning and the N1212971 C 02 F 1/48, 1986), containing the rotor, the stator is placed in the grooves of the magnetic system consisting of three-phase windings connected to the network half-wave rectifier, pipes for drainage and supply of treated liquid and the pressurized chamber located between the rotor and stator.

The known device has a number of disadvantages, namely, that regardless of the flow rate of the magnetic flux is not changed. On the other hand, in the absence of fluid windings can overheat.

The closest technical solution is the device A. with. N 1692948 02 1/48 F, 1991. The known device for magnetic treatment of a liquid containing a hermetic chamber with connections for supply and discharge of fluid, a rotor, a stator with an even number of poles and half-wave controlled rectifier SCR zero-point input connected to the mains supply, and the output is three-phase stator winding, and further comprises a current-limiting resistors and relay elements.

The above disadvantages inherent in this technical solution, as the opening angle of the thyristors is not changed in the process.

The technical solution proposed image is STI.

This object is achieved in that the device for magnetic treatment of a liquid containing a hermetic chamber with connections for supply and discharge of fluid, a rotor, a stator with an even number of poles and half-wave rectifier with zero point, the input connected to the mains supply, and the output is three-phase stator winding, it contains an amplifier, a comparator and a dynamic pressure sensor, the controlled rectifier is carried out, for example, opto-SCR, and a dynamic pressure sensor is mounted in the center of the outlet pipe and is connected to the amplifier through the comparator, and the output of the amplifier controls opto-thyristor.

The novelty of the claimed technical solution is due to the introduction of an additional amplifier, comparator, the pressure sensor and the use of controlled rectifier opto-SCR, and a dynamic pressure sensor is mounted in the center of the outlet pipe and is connected to the amplifier through the comparator, the output of the amplifier - controls opto-thyristor.

According to scientific-technical and patent literature, authors unknown to the claimed combination of features, Napoli, that allows to make a conclusion on the conformity of the decision level of invention.

The proposed solution is industrially applicable. Device for the magnetic treatment of fluids have been tested in laboratory and industrial conditions.

The invention is illustrated by drawings. In Fig. 1 shows a device for magnetic treatment of liquids, the section of Fig. 2 - section a-a in Fig. 1; Fig. 3 - scheme of connection of the device to the network.

The device consists of the output of the pipe 1, the three-phase windings 2, fixed to the rotor 3, the housing 4, the magnetic circuit of the stator 5, the inlet pipe 6, a sealed chamber 7 disposed between the rotor 3 and the stator 5, the locking rotor of the uprights 8, the dynamic pressure sensor 9, a switch 10, opto-thyristor 11 controls 12, zero wire 13, the amplifier 14, the comparator 15.

The hermetic chamber 7 formed by the surface of the rotor 3, the housing 4 and the nozzles 1 and 6. The rotor 3 is of magnetic material, a housing 4 made of plastic or non-magnetic material and is fixed by means of the uprights 8. Winding 2 of the stator invested in isolated pockets and one side connected in star, and zero wire 13 are connected with the "zero" supply samyutta with switch 10 and then to a three-phase network And, B, C. the Rotor 3 and the stator 5 is installed at a distance smaller than the distance of the pole division.

Dynamic pressure sensor 9 is mounted in the center of flow of the fluid and reacts to changes in flow.

The device operates as follows. The treated liquid flows through the pipe 6 into the hermetic chamber 7, passes between the rotor 3 and the stator 5, the effect on the dynamic pressure sensor 9 through the pipe 1 is supplied to consumers. The switch 10 on the anode opto-thyristor 11 is applied sinusoidal voltage. The comparator 15 serves the control signal Uass. Given the state of the dynamic pressure sensor 9, the comparator sends a control signal Uynp to the amplifier 14, the latter generates the control pulses and supplies them to the control elements 12 opto-thyristor 11. Opto-thyristor 11 is opened, and a pulsating voltage (current) passes through the coils 2 and creates a gap between the stator 5 and the rotor 3 unidirectional pulsating magnetic field, moving perpendicular to the fluid flow speed

< / BR>
where f is the frequency of the supply current,

p = 1, 2, 3... n is the number of pairs of poles of the winding.

At lower races the latter reduces the control signal Upanelinput to the amplifier 14. The amplifier 14 changes the opening angle opto-thyristor 11, which reduces the effective value of the current passing through the winding 2. Reduced energy consumption.

When reducing the flow rate to zero dynamic pressure sensor is not working, the comparator 15 is closed and the input of amplifier 14 receives a control signal at its output no control pulses, and opto-thyristor 11 is closed, the coils 2 is not current and there is no energy consumption. Thus, automatically, depending on the liquid flow rate change in the current in the windings, which stabilizes the processing parameters and improves energy performance.

Device for magnetic treatment of a liquid containing a hermetic chamber with connections for supply and discharge of fluid, a rotor, a stator with an even number of poles and half-wave rectifier with zero point, the input connected to the mains supply, and the output three-phase stator winding, characterized in that it contains an amplifier, organ comparing and dynamic pressure sensor, the controlled rectifier is carried out, for example, opto-SCR, and dynamic date is elites - controls opto-thyristor.

 

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18 cl, 3 ex

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