DE1010974B - Device for degassing water, in particular boiler feed water - Google Patents

Description

GERMAN

The invention relates to a device for degassing water under excess pressure, in particular of boiler feed water, which device consists of a horizontal container in which a shower for the water to be degassed near one end above the water level is arranged from which the water is sprayed in the form of an umbrella and wherein the container is provided with means for supplying steam.

In the previously known devices of this type, steam is usually fed into the bottom of the container, which rises through the water, whereby gas still present in the water is expelled and pulls together with the steam to the water screen, over which screen an outlet for the gas is provided. The steam strokes along the water screen so that it heats up which drives gas out of the water. The pressure prevailing in the container is of the Temperature of the feed water dependent, so that when this temperature changes, the pressure in the container also changes. Since also the pressure of the in the container supplied heating steam, for which steam taken from a machine is usually used, May be subject to changes, there is a possibility that the pressure prevailing in the container is higher is called the pressure of the heating steam, so that water would get into the steam line, if not one Safety device such as a check valve would be provided.

The purpose of the invention is to prevent the outflow of steam below the water level in the container below to be avoided under all circumstances and safe degassing through the transfer of convection heat of the water. According to the invention is at the end of the container facing away from the shower head a horizontal outlet pipe for the heating steam is arranged just above the water level, from which the Steam comes out almost across the entire width of the water level in the direction of the shower and which one Pipe is connected to a pipe system located at the bottom of the container, into which pipe system the steam is fed. The steam coming out of the pipe lying above the water level drives it out of the Gases escaping from the water screen towards the exit above the screen.

The washing of the water in the container is further promoted by the fact that the steam in the pipe system below the water level transfers heat to the water and thereby loses any overheating. The steam bubbles generated in the water absorb the gas that is still present and rise up to the steam room, where the gas passes through the device for degassing water,
especially of boiler feed water

Applicant:

Koninklijke Machinefabriek

Gebr. Stork & Co. NV _r

Hengelo (Netherlands)

Representative: Dr.-Ing. A, van der Werth, patent attorney,
Hamburg-Harburg 1, Wilstorfer Str. 32

Claimed priority: ''

The Netherlands, November 6, 1953

the outlet pipe blowing steam is driven towards the screen.

The effect of the steam blowing out of the outlet pipe can be further promoted by in the steam space of the container between the water screen and the outlet pipe for the steam a vertical one Partition wall is provided, which extends below the water level, with a top in the container Pipe is arranged, which at one end under the shower above the water level and at the other End on the other side of the partition wall also opens above the water level. With this arrangement the steam sweeping over the water level, which drives the gases in front of it, is caused by the above Pipe to be guided under the water screen so that the steam can pass through the screen must rise towards the exit, whereby the screen is heated up to the core and thereby the degassing of the water is promoted.

In the drawing, in which an embodiment of the device according to the invention is shown is shows

Fig. 1 is a longitudinal section of the container;
FIG. 2 is a cross section along the line II-II in FIG. 1.

In the top of the container 1, a shower 2 is provided at one end, which the boiler feed water to be degassed at 3 to be sprayed into the container in the form of a screen 4. The Department of the container in which the water screen 4 is formed is from the rest of the container

709 550/124

separated by a vertical partition 5. that is extends below the water level.

The steam is fed in through a line 6 to which a pipe system 7 is connected which the steam through the standing pipe 8 through to the outlet pipe 9 rises to flow out over almost the entire width over the water level.

In the first compartment of the container there is a pipe ΙΟ above the water level, which is completely open at one end and there connects to an opening in the partition 5. The pipe 10 opens at the other end under the shower 2, so that the steam from the right-hand compartment of the container flows out together with the gases through the pipe 10 below the water screen and pulls through the screen 4 to the outlets 11.

The steam flowing through the pipe system 7 heats the water below in the container, so 'that the im Water still existing gases are expelled and rise up into the steam room, where the gases be entrained by the steam blowing from the pipe 9 above the water level in order to pass through the pipe 10 to flow out through below the water screen. The container has an outlet at 12 for the degassed Water.

Claims (2)

PATENT APPLICATION: 1. Device for degassing water under excess pressure, in particular boiler feed water, consisting of a lying container in which near its one end above the Water level a shower is arranged for the water to be degassed, from which the water in is sprayed in the form of an umbrella and wherein the container is provided with means for supplying Steam and is provided with an outlet above the screen, characterized in that on of The end of the container facing away from the shower is arranged just above the water level, a horizontal outlet pipe for the heating steam, from which the steam almost across the entire width of the water level in the direction of the shower head and which pipe is connected to a pipe system located at the bottom of the container, into which Pipe system that is supplied with steam. 2. Device according to claim 1, characterized in that in the steam space of the container a vertical partition is provided between the water screen and the outlet pipe for the steam is, which extends below the water level, with a pipe is arranged at the top of the container, which at one end under the shower above the water level and at the other end on the other side of the partition wall also above the water level opens. Considered publications:
German Patent Specifications No. 352 784, 565 234;
U.S. Patent No. 1,907,050;
Dr. Arthur Splittgerber, water treatment iöi steam power plant, Berlin, 1954, p. 151. 1 sheet of drawings © 70i 550/124 6.57