DE528493C - Separating container for evaporator - Google Patents

Description

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ι. Separation tank for evaporators with a raw water supply, a distributor for the raw water and a steam water mixture feed coming from the evaporator, characterized in that through a baffle surface arranged above the liquid level a tube (2) open at the bottom with a bottom

(5) and sieve tube (6) two spaces (ß and b) are formed, in one of which (fl) the liquid to be evaporated and in the other (b) the liquid-vapor mixture is introduced so that in the tube

(6) the freshly fed-in liquid is already made up of the mixture by steam Boiling temperature is heated.

2. Separating container according to claim 1, characterized in that the space («) is closed and an overpressure is maintained in it.

1 sheet of drawings

Claims (1)

There are evaporators, e.g. B. so-called circulation evaporators, known, which consist of a radiator in which the evaporation takes place, and a separation container in which the steam separates from the steam-liquid mixture. With these well-known Separating tanks, the water to be evaporated through an overflow vessel o. The like. 'Directly fed into the vapor space of the circulation evaporator. This facility is not advantageous, as this easily causes drops of liquid from the rising vapor can be taken away, which deteriorates the purity of the distillate. In addition, the known device has the disadvantage that pressure fluctuations in the separation vessel occur that adversely affect the orbital process by causing pulsations. The subject matter of the invention is intended to remedy this problem and to achieve the most favorable possible separation of the two Media effects as well as a convenient facility for the introduction of the freshly vaporized substance can be created. A separating container with a device according to the invention is shown schematically and for example in the drawing.
A is the separating container according to the invention, which is shown broken off above and below for the sake of simplicity. Through any line, e.g. B. elbow 1, the separation tank A is supplied to the liquid-vapor mixture. In the interior of the separating container, a tube 2 which is expediently closed at the top and open at the bottom is arranged, which is connected to the bend 1 by a connecting piece 3. Below the pipe is a baffle 4, shown as a cone, above the liquid level, over which the exiting liquid-vapor mixture runs down in a thin layer, the liquid and vapor separating without substantial amounts of liquid being entrained by the vapor. The tube 2 is divided by a floor S into two spaces α and b . The upper space a , closed at the top, contains a sieve tube 6 fastened in the bottom 5. The liquid to be evaporated is fed to this space via nozzles 7 and 8 through a tube 9 with a non-return element 10. This enters the inside of the sieve tube through the bores of the sieve tube and falls down in fine jets and droplets. The liquid in the pipe 6, which represents a type of mixing preheater, is heated to boiling temperature by steam from the mixture. It does not change anything in the device if the sieve tube 6 is closed at the top and the number of holes is chosen so that the entire upper space α of the tube 2 is completely filled with the liquid to be evaporated and a certain overpressure arises in the space.