DE234856C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 234856 CLASS XId. GROUP

Addendum to patent 135372 of January 12, 1902.

Patented in the German Empire on August 2, 1910. Longest duration: January 11, 1917.

Patent 135372 explains how to use mixing capacitors by attachment a so-called cooling water accumulator (or several cooling water accumulators) the Vacuum fluctuations in mixing or injection capacitors can be reduced. The same procedure is suitable but also for surface capacitors, d. H. even with these one can for the purpose of the Reduction of the vacuum fluctuations one or more cooling water accumulators attach. This measure forms the subject of the present invention.

On the accompanying drawing is a device for performing the method in a vertical longitudinal section through a surface capacitor illustrated in more detail.

The exhaust steam coming from the steam engines, steam turbines or the like passes through the pipe b into the condenser c and flows in this against the cooling water entering at the bottom through the pipe d. The condensed steam or the condensed water is discharged below through the pipe e ' , while the air pump attacks the pipe e at the coolest point of the condenser, where the cooling water enters. The hot water leaves the condenser close to the steam inlet through pipe a. In the present case, it is a surface capacitor that works according to the countercurrent principle. Of course, the accumulator can also be used on parallel current surface capacitors.

Instead of simply sending the cooling water introduced through pipe d through the condenser and letting it exit as hot water at a , as has always been done up to now, the cooling water flowing through the condenser is forced after it has traveled a certain part of its way to leave the condenser through pipe g and to enter a container r, ie just into the cooling water accumulator. After the cooling water has filled the cooling water accumulator r , it returns to the condenser through tube h , in order to continue its usual path in the condenser until it exits through tube α.

The mode of operation is as follows: Assuming that the connected machines have had a period of low steam consumption, then evidently relatively little steam has been fed to the condenser through the exhaust pipe b. The cooling water, which always flows in the same amount through pipe d to the condenser, has also only warmed up relatively little, and

consequently, the accumulator r has filled with water at a relatively low temperature.

If there is now a period of high steam consumption by the connected machines, a lot of steam enters the condenser through pipe b. Naturally, the cooling water entering at d now heats up more than before, and so it passes through

ίο tube, however, g r and warmer water into the accumulator, as this was previously the case. This warmer, ie specifically lighter, water drives the cooler water located below it in the accumulator through pipe h into the condenser.

While in a normal condenser cooling water only flows into the condenser through a pipe d , here when an accumulator is used, in the period of high steam consumption, cool water also enters the condenser through a second pipe h. It follows naturally from this that when an accumulator is attached, the temperature in the condenser cannot rise as high or the vacuum can not fall as low as in the case of a capacitor without an accumulator. Or in other words: If you need a certain amount of cooling water in a condenser without an accumulator in order to prevent the vacuum from falling below a certain dangerous limit during the period of high steam consumption, you only need about two thirds of that amount of water with the accumulator and still gets the same vacuum. In the embodiment illustrated by the drawing, only a single accumulator has been assumed to be attached to the capacitor, but several accumulators can also be attached, as stated in patent 135372. The latter, however, has hardly any practical value, and it is therefore expedient to be satisfied with only one accumulator.

Instead of letting the tube g open out into the accumulator at the top , as shown in the drawing, while tube h exits at the bottom, one could conversely let tube g open out at the bottom and tube h at the top. In the latter case, however, the effect would not be so favorable.

The accumulator r can be equipped with perforated plates m, which serve to better distribute the incoming water.

The accumulator can be close to or more distant from the Condenser or directly under the condenser, in which in the latter case the accumulator serves as a support for the capacitor. The cooling water can with a natural gradient or by means of a pump through the condenser and Accumulator are driven.

Claims (2)

Patent ^ claims: 1. Process for damping pressure fluctuations in surface condensers with changing steam consumption of the connected machines according to patent 135372, characterized in that the The water flowing through the surface condenser is forced to open the condenser at a predetermined location to leave, and to be placed in one (or more) at any distance Cooling water accumulator, which is united in this way with the surface condenser, to pass over this to flow through and then to flow back into the capacitor. 2. To carry out the method according to claim 1, a device characterized in that the cooling water introduced into the surface condenser (c) through tube (d ) is forced through walls (w) arranged within the latter, after having covered a certain path within the condenser to interrupt its flow in the latter in order to pass into a cooling water accumulator (r ) connected to the condenser by pipes / g and V) and finally, after it has filled the latter, to flow back through the return pipe (h) into the condenser and completely pass through it .. 1 sheet of drawings.