Abstract:
A method and apparatus for dehydration of glycol uses two galvanic electrodes submerged in a water-glycol mixture. Semiconductor switches are used to supply pulses from a direct current source and to control the polarization and current flow time in such a way as to produce an average current of zero and a switching frequency commensurate with electro-hydrodynamic frequency of the electrode and liquid system. By applying sufficiently low frequency of switching, stirring of glycol and removal of gas products from the electrodes is achieved. The glycol container has at least one submerged electrode module equipped with at least two galvanic electrodes. Each electrode is connected through pairs of high power electronic switches which cycle alternatively between the positive and negative terminals of a direct current power supply.
Abstract:
A power supply for a CW magnetron, devoted for use in microwave heating equipment. A power supply according to the present invention (FIG. 1) has a high-voltage line transformer (1) with secondary winding (2) which is connected through a voltage doubling rectifier circuit to the magnetron cathode (4). The voltage-doubling rectifier circuit comprises a high-voltage diode (7) and a capacitor (3). The distinctive feature of the present invention is that the diode (7) of voltage doubler is connected in-series with the at least one thyristor-capacitor network (8) which is composed of a high-voltage thyristor which has its anode and cathode connected together with an additional capacitor (Cd) or with series connection of said capacitor with a resistor (Rs).
Abstract:
A method and apparatus for dehydration of glycol uses two galvanic electrodes submerged in a water-glycol mixture. Semiconductor switches are used to supply pulses from a direct current source and to control the polarization and current flow time in such a way as to produce an average current of zero and a switching frequency commensurate with electro-hydrodynamic frequency of the electrode and liquid system. By applying sufficiently low frequency of switching, stirring of glycol and removal of gas products from the electrodes is achieved. The glycol container has at least one submerged electrode module equipped with at least two galvanic electrodes. Each electrode is connected through pairs of high power electronic switches which cycle alternatively between the positive and negative terminals of a direct current power supply.
Abstract:
In the method at least two electrodes (1, 2) and fluid reagents (4) are placed in the reaction vessel (3). At least one fluid substrate (11) of the fluid reagents (4) is capable of electric polarization. The reagents (4) are subjected to electric voltage in the form of a series of short electric pulses in such way that unipolar or bipolar electric field pulses are generated. The minimum duration time of electric pulses is from 50 ns and the maximum is 20 ms. The pause between the consecutive pulses is from 0.5 μs to 3 s. In the reactor at least two electrodes (1, 2) are connected to the electric power adaptor delivering unipolar or bipolar pulses of direct or alternating voltage which constitutes the source of the electric field with amplitude exceeding 100V/cm. The electrodes (1, 2) are placed in the reaction vessel (3) filled with fluid reagents (4) which contains at least one liquid substrate (11) capable of electric polarization.