SU1701334A1 - Evaporator with ascending and descending currents of solution under evaporation - Google Patents

Abstract

The invention relates to an evaporation apparatus with upward and downward flows of the indicated solution and can be used in the food, chemical and other sectors of the industry. The intensification of the evaporation process and the prevention of the return of the solution to the heating tubes with upward flow is achieved by the fact that the central part of the upper tube of the grate connecting the tubes with the upward flow is made in the form of a hemisphere and elevated above the tube grating connecting the heating tubes with the downward flow one stripped off solution 1 sludge

Description

The invention relates to artnapa evaporators there and can be used in the food, chemical and other industries.

The purpose of the invention is to intensify the evaporation process by distributing the mercury tube in the green tubes to the ascending and finding flows and preventing the return of the evaporated solution to the heating tubes with the ascending flow.

The drawing shows a diagram of the evaporator.

The evaporator comprises a cylindrical body, 1, a beam of central heating tubes 2 of the upward flow and peripheral; heating tubes 3 downstream, lower grilles 4 and upper 5, switchgear 6, rotary separator 7, separation chamber 8, pressure head 9 and prefabricated chamber 10, grubkkm 11 secondary steam outlet, heating steam injection 12, the input of the initial solution, the output of 14 one stripped off solution, the calling of condensate of heating steam 15 and the valve 16 on line 17. The level of the solution is controlled by the level gauge 18.

The device works as follows.

The evaporated solution through the pipe 13 enters the pressure chamber 9, fills the tubes 2, where it boils due to the heat of heating steam supplied to the heating chamber through the nozzle 12. The level of the solution in the heating tubes 2 is controlled by a level gauge 18. The vapor-liquid mixture enters the Separate chamber 8. Where the rotating droplet collector L is located, made in the form of two impellers of different lengths with the blades turning at different angles to the axis of movement of the secondary steam. When interacting with the blades of the drip separator, the solution is evenly fed to the distributor 6, consisting of perforated discs and located above the tubes 3 with a downward flow of the solution. In the heating tubes with a downward flow of the solution, the secondary steam moves upwards, and the evaporated solution

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flows into the collecting chamber 10, and through the nozzle 14 is removed from the apparatus. The secondary steam, which has passed through the drip trap, is removed from the apparatus through the pipe 11.

Claims (1)

Elevation of the central part of the upper tube grid, made in the form of a hemisphere, in the zone of heating tubes with an upstream flow of the evaporated solution and the presence of a rotating droplet separator with different angles of rotation of the impeller blades helps the solution to flow into the zone of the heating tubes with a downward flow and prevents the evaporated solution from returning in heating tubes with upward flow of the solution, Formula of the Invention An evaporation apparatus with upward and downward flows of the evaporated solution containing a vertical cylinder -cylindrical housing with pipes of input and output heating solution, secondary prod, heating steam condensate, heating tubes fixed to the tube sheets, to the baffle plate, pressure chamber and team chamber, different in that., t the goal of intensifying the process of excretion and preventing (excluding) the evaporated solution into the heating tubes with an upward flow of the solution; the main part of the upper tube sheet is made in the form of a hemisphere and lifted above the distribution device located above the horizontal tubing, a grid connecting the heating tubes with converging-flow solution and kapleot- boynik vraschayuyeys configured as a turbine with blades of different lengths, set at right angles to the horizontal plane of the lattice tube. eleven A A - S rll / 3 12