JPS6025561A - Electrostatic desalting apparatus - Google Patents

Abstract

PURPOSE:To enhance the separation efficiency of impurities and to shorten a separation time, by arranging plural pairs of electrode pairs each formed by opposing an earth electrode and a high voltage electrode one over the other in a desalting tank. CONSTITUTION:Oil to be treated is supplied into a desalting tank 101 from a supply pipe 102 through a distribution pipe 103 and fine water droplets in oil are mutually coalesced in the electric field between upper electrode pair 105 to enlarge the diameter of each water droplet and further coalesced in the electric field between lower electrode pair 106 to form large diameter water droplets which are, in turn, precipitated by gravity. As mentioned above, because water droplets are separated over two stages, impurities can be separated with good efficiency within a short time and, because it is unnecessary to increase voltage applied between electrodes, no danger of spark discharge is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention removes impurities in oil to be treated by electrostatic force.
Concerning the drunken turtle removal device.

To desalinate salts such as sodium and potassium contained in natural crude oil or synthetic crude oil, the oil to be treated is
While heating to 0℃v, a few percent of cleaning water is mixed in, and this is passed through a mixing valve to form the cleaning water into minute water droplets. sodium,
Salts such as potassium are dissolved in these minute water droplets. Next, the oil to be treated containing the minute water droplets is placed in a dering tank, and the minute water droplets are separated by electrostatic force.

This electrostatic desalination apparatus has conventionally been constructed as shown in FIGS. 1 and 2I. That is, 1 is a desalination tank, 2 is a treated oil supply pipe, 3 is a distribution pipe, and 4Fi oil collection sound. Further, inside this desalination tank 1, there is provided a grounding electric ring 5, and a high voltage electric body 6 which is provided below the earthing cable 5 and facing it. A high voltage is applied from the power supply 7. Note that this is an insulator that supports 80 high voltage electric signs 6. Impurities such as small water droplets and impurities contained in the oil to be treated that is supplied from the oil to be treated 2 through the distribution pipe 3 into the desalination tank 1 are removed by contact with the oil. 9 small water droplets repeatedly coalesce with each other in the electric field, the rakes of these water droplets gradually become larger, and sink due to gravity v:i and divide into ζ) Then, the water is separated at the bottom of the tank and the water is drained from the drain 9.
In addition, the minute water droplets are removed and the oil to be treated is discharged from the collection pipe 4. Note that JO is an interface meter, and the interface between the oil to be treated and the separated water is the interface meter.

However, in such a case, the settling water droplets come into contact with the rising oil to be treated, and the salts in the water droplets migrate again during the furnace treatment, and the oil to be treated also enters the water droplets. 'ill efficiency is low. Also, there was a glitch in the minute 1'li # that made it difficult to use it for a long time. To eliminate this kind of problem, it is better to increase the voltage applied to the high 1 piezoelectric (Pro), but if you increase the voltage? A1 to make it higher (1 cannot be done)

Tree 61. The purpose of this is to improve the efficiency of the public treasury of water, cargo, etc., and to shorten the time it takes to recover from a crime. Our purpose is to provide descaling equipment.

In other words, the present invention provides a desalination tank for accommodating the sacred oil used to wrap things, and a 4-ton grounding tank and a high-voltage electric rod are vertically opposed to each other. A plurality of pairs of f electrodes are arranged vertically inside the upper 81st mound. 1- Therefore, impurities can be separated efficiently and in a short time by the electric field generated between these basic pairs of electrodes, and there is no need to increase the voltage applied between the two electrodes, so there is no spark. There is no possibility that discharge will occur.

An embodiment of the present invention will be explained below with reference to Fig. 3. In Fig. 3, 101 is a 1θ2 kesha treatment oil supply pipe,
3 is a distribution pipe, 1 (14 is 111 oil β', and the oil to be treated is the oil to be treated? The oil is discharged through the oil collection pipe 1''04.In this demineralization tank 101, two pairs of cylinder frames, an upper pair of 7 ridges 105 and a pair of lower electrodes 106, are arranged vertically. The above upper voltage @l pair 105
are vertically opposed (, lattice-like upper grounding basket* l 05
a and the upper high voltage electrodeposition 105b to the phase bottom il, and 1
The part electrode pair 106 is composed of a grid-shaped upper ground electrode 106a facing vertically, a lower high voltage wire, and a sand 1o6b, and has an upper high voltage piezoelectric %y7゜5b and a lower high voltage '
The configuration is such that a high voltage is applied from power supplies 107 and 108 to the IE1FIKXO6BK.

Note that the electric field intensity generated at the upper electrode pair 105 is slightly larger than the electric field intensity generated at the lower electrode pair 106. In addition, 110...4i% for Fi electric support
112 is an interface b1 that monitors the interface between the oil to be treated and water.
It is.

υ±'s <i (Journey to the first part of the book that was completed, the next month's offshore is handled by the oil supply arm No. 02 to 611 arm J
O,? f (is supplied into the desalination tank 101 via [2).

(, te, this imitation water droplet in the oil to be treated is the upper $F Hayashi 7
During t 1 o s, the water droplets coalesce with each other in the electric field, and the water droplets form a dog.
, KJ meets the force and falls down with gravity. Therefore, a small drop of water is deposited in a short time, and the efficiency is improved by 1, and separation can be carried out in a short time.

Also, this one has an upper voltage (ψI pair 105 and O: lower part'
1-"The pressure applied to 1151 vs. 106 is j14.
2. Because the spark is not high enough to cause the electric current to rise. Danger 1 (An accident will not occur.) The present invention is not limited to one embodiment of the above Bci. For example, the number of I pole pairs is not limited to two,
Multiple p pairs may be provided.

As described above, the present invention provides a demineralization tank that accommodates oil to be treated containing impurities, and a plurality of electrode pairs each consisting of a ground electrode and a high voltage electrode facing each other vertically in the demineralization tank. This is a paired array. Therefore, impurities can be separated efficiently and quickly by the electric field generated between these multiple pairs of electrodes, and there is no need to increase the voltage applied between the electrodes, so there is no risk of spark discharge. The effect is huge.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 show a conventional example, in which FIG. 1 is a longitudinal sectional view and FIG. 2 is a plane view taken along the n-us line in FIG. 1. FIG. 3 is a cross-sectional view of one embodiment of the present invention. 101...Demineralization tank, 102...Destruction oil supply pipe, 1
04...Oil collection pipe, 105...Upper electric coupler, 105a
...Top ground electrode, 1.05b...Top ground electrode,
106...Bottom electrode pair, 1O6a...Bottom ground? !
Rod, 106b... Lower high voltage chamber, 107, 108.
...1 le source.

Claims (1)

[Claims] The desalination tank containing impurity-containing oil to be treated is placed in the second stage, and the grounding 11 electrode and Okiichi 1 pressure 1. 1. An electrostatic desalination device characterized in that a pair of electrodes configured with poles facing each other vertically is arranged one in the vertical direction in an upper B demineralization tank.