SU445441A1 - Evaporator - Google Patents

Description

one

The invention relates to evaporators of chemical plants.

An electrode type evaporator is known, containing a vertical case with patrusises of the inlet, outlet of the evaporated liquid and secondary vapor removal.

with plane-parallel electrodes located in the central part.

In such a device boil

solution and the formation of vapor bubbles occurs directly in the interelectrode space, which is a violation of the uniformity of the electric field, changing

current density on the electrodes and power consumption. The absence of

The stabilizer of the parozhdkostnoe so emulsion results in a continuous pulsation of the apparatus.

The invention is to stabilize the current density at the electrodes and the power consumed. 25

Pchr y-v.

creation of a uniform electric floor, elimination of high-frequency pulsations.

This is achieved by the fact that the apparatus is provided with an axially placed rectangular tube, and the electrodes are installed in the tube at its lower end.

Figure 1 shows the proposed evaporator, General view; figure 2 is the same, the section along aa in figure 1.

The evaporator comprises a housing I, divided by vertical partitions 2 into two downstream sections of the circulation circuit 3 and a central channel 4, in the lower part of which there are widely parallel electrodes 5, the central part serves as a pillar section 6, and the upper part is divided by vertical partitions and represents stabilizer for the vapor-liquid emulsion and serves to eliminate hydraulic pulsations. The upper part of the housing 1 serves as a separator 8, in which a spray is installed;

The device is equipped with nozzles for supplying the initial solution 10, dd for conveying the concentrated solution II, for removing the secondary steam 12 and the bottom with the emergency nozzle 13, the electrodes 1pent to the body of the holders 14. The current wire to the electrodes is carried out using plate 15, bolts 16, electrically insulated from the housing with sleeves 17 and an electrically insulating jacket 18,

The device works as follows, the income solution 10 through the nozzle enters the downstream section of the circulation circuit 3, and then into the lower part of the central channel between the electrodes, where the solution is heated to a temperature 2-ZT below

its boiling point in the interelectrode space, the exact pressure in the interelectrode space and the prevention of the solution boiling and stabilization of the current density on the electrodes and

the sensor of power reaches the retaining section 6. When the solution moves upward along the central channel, it begins to boil outside the electrode part in the upper part of the retaining section of the bays using the stabilizer 7, the evaporated solution is partially removed through pipe II, the rest of the solution is removed in the apparatus. The secondary steam is removed through the separator 8, the dust separator 9 and the nozzle 12.

.PROVDMET. PHOTOS Evaporating apparatus containing a vertical body with nozzles of the inlet, the output of the evaporated liquid and the secondary vapor discharge and the plane-parallel electrodes placed in it, characterized in that, in order to stabilize the current density on the electrodes and the power consumed, to create a uniform electrical It eliminates the hydraulic pulsations, it is provided with a rectangular section pipe placed along the axis, and the electrodes are installed in the pipe at their end.

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