DE1526980A1 - Float steam trap with swivel valve - Google Patents

Description

Float steam trap with swivel valve

Float steam traps in which a rotary valve serves as the shut-off device, which is also the swivel joint of the float = hebeis are characterized by the greatest simplicity and Freedom from interference, so that they are used to an ever increasing extent.

In float steam traps of this type with a swivel slide valve, a large angular deflection of the öchwimmerhebels applied to even with small diameter of the swivel slide to achieve a large opening width. This results in an angle deflection that is approximately the same size downwards as it does upwards It should be noted that the adjusting force of a slide both when moving upwards and when moving downwards The bottom has to be practically the same size, which in turn means that the swimmer's power of step is practically just as great must be wiis its weight or vice versa unusually heavy swimmers with the advantage of large ^ ow » strength.*

Through the present invention, focusing on steam traps of the type described relates, should; another perfection the way of working. This can be achieved in the following way »

In the final division (float at the bottom), i.e. when the condensate flow has not taken place, the rotary valve is in the rest position and lies motionless against the sealing surfaces against which it is pressed by the internal pressure of the condensate drain housing «p. It is now known that the "friction of the Ruho" ip is much greater than the "friction in the movement". That means, it takes a greater force to initiate the movement = * "than to continue the already existing movement, ο -In At this initial stage (when condensate flows in again and the condensate drain is supposed to open), it may happen that ° the buoyancy force is insufficient to initiate the opening, * or oversized floats are required to achieve this.
According to the invention, this difficulty is eliminated in that the float lever in its closed position against a

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^ ₀ - * tori

BAD ORIGINAL ⁴ ύ

known stop pushes, which, however, geraäss the invention is resiliently resilient, ist.Nach the beginning of the conclusion on the swivel slide still flows some condensate, the condensate level sinks so.noch weiter ab.Der float, who is with his ^Ai ebel on the The stop supports gradually loads this stop with its full weight. According to the invention, the stop bounces through, the occurring spring tension balancing the increasing, effective weight of the swimmer emerging. At the same time, the overlap with which the swivel joint slide closes increases, so that the water level stops falling.

The float weight is now in the spring force of the he » as soon as condensate after flowing acts (in contrast to a fixed stop) not only the buoyancy of the now again by climbing of the condensate level in the water immersed float on the float lever and thus in the opening direction on the Swivel joint slide, but also the spring force that is released. For the essential operational initiation of the movement (Overcoming the friction of rest) there is therefore a much greater force available. Once the movement is on = guided, there is much lower "friction in motion" the effect and the support provided by the spring force, which is only effective over a short distance, is no longer necessary.

In Figure 1, an exemplary embodiment of the invention dargestellt.Das condensate flows at 1 in the housing 2 of Kondensatabieiters and forms in this the water level 3, "* which, depending on the ^w close of the incoming condensate arises a = <o and changed .The float, which is _{so heavy for the reasons mentioned in the introduction ω} that it is about half way ^ into the condensate transmits its movement via the float lever 5 to the swivel joint slide 6, which thus =

co milled is that he has a control edge ? has * -Depending on the

° The float position is the outflow channel 8 more or less opened, the thereby ausfliessencle condensate passes through the Outlet connection 9 into the condensate drainage line of the seat body which carries the three-joint slide 6 and the outlet opening 8, is useful with a Konusll and a screw 12 in Arrester housing attached and by a dip tube 13 with -dem

BATH O.

Condensate connected under the lower edge of the float.

When the condensate has drained, the float sinks all the way down, as shown in Fig. 2, until the float lever 5 hits a stop 14. Fig. 3 shows the application of the spring-loaded stop 15 according to the invention. can take a long time, the water level continues to drop, as Fig. M- and 5 zeigen.Der serious swimmers whose ^u desired weight is not lifted by the immersion in the condensed set =, hanging freely in the space formed by the vapor "Gas space" as in atmospheric air and pressure, reinforced by leverage first in the position 15 a (Fig. 4) and finally in the position 15 b (Fig. 5) «The resilient stop 15 stores a spring force that the Float = weight including leverage.

In Fig.6 it is shown how a renewed influx of condensation water the water level (condensate level) 3 rises until the The float is completely submerged in the worst case and the buoyancy force P ^ becomes effective. The swivel slide 6, which is difficult to move, resists the opening. However, since the stop in position 15 b ge = stored spring force also acts, the "friction of rest" is overcome and the swimmer climbs into the in Fig. 7 and 8 indicated positions, whereby it differs from the Stop 15 triggers, the path of which has ended the additional force acting on the float lever. o which, however, is not necessary either, since the "cleaning" now "5 of the movement" which is much smaller, only to about = • ^ winds. Fig. 3, 4 and 5 also show how as a result of the "*" «· Deflection of the stop 15, the control edge 7 moves further cn and a greater coverage of the sealing surface and thus a strengthening of the closure.

The lowering of the condensate level 3 can - especially when dewatering superheated steam (overheating can also only occur through relaxation) - also be caused by evaporation of the condensate _content , then naturally the same phenomena occur as described, öa q ORIGINAL

Claims (4)

cn co ο patent claims 1. Float condensate drain with swivel joint slide, where the float lever is in the closed position a stop is limited, characterized in that the ' Stop 15 made of resilient and resiliently effective · * shaped Material, preferably resilient stainless steel, exists and is dimensioned in such a way that it is exposed to the weight released as the condensate level continues to fall of the float 4 · bounces until it reaches the entire float = weight, including its enlargement by the over = Settlement effect of the float lever 5 carries without the elastic limit being exceeded, so no permanent Deformation occurs. 2. float steam trap according to claim 1, characterized ge = indicates that the control edge 7 of the swivel joint slide is straight when the resilient stop 15 is touched for the first time terminates with the inner edge of the outflow channel 8 and when deflection of the stop 15 occurs, the bteuer = edge 7 on the cylindrical sealing surface of the Öitz bore sliding along causes an increasing overlap of the seat. 5. float steam trap according to claim 1 and ^, characterized characterized in that the resilient stop 15 has to be calibrated in known way fork-shaped Schwinmer lever is supported on both sides. 4. Float steam trap according to claims 1 to ^, characterized in that in a manner known per se the float 4 is so thick-walled and therefore so difficult = is guided that it is immersed in the condensation water up to about half its diameter without any load. BAD OFKGJNAL