DE1426792A1 - Overflow control valve of a steam or gas turbine - Google Patents

Description

ABO-KAKIS TÜSBXJOTÖ? ABBIX GMBH 85 Nuremberg 2, Ifrankenstrasse 70-80

September 50, 1968 (A 50 957

HJu η Q _n -,

The invention relates to an overflow valve that between a high pressure part and a depressed one a steam or gas turbine is connected, between which Share 'propellant can be removed from the turbine, and within a turbine housing between them Toilen is provided and has a ring surrounding the turbine shaft as the closure body on one of the The fixed partition wall surrounding the turbine shaft is rotatable is stored. The turbine is an internal turbine, in particular with a single housing Design * The turbine has a high-pressure part and a low-pressure part, and the amount of propellant flowing through the low pressure part should correspond to the FatncJbüffiet propellant quantity will be regulated * So far the amount of propellant between the two mentioned Turbine components taken and a part of this amount forwarded for any purposes, the best via control valves arranged outside the turbine housing dom the low-pressure part of the turbine was fed

The object of the invention is to reduce the risk of contamination * and to reduce rusting of the bearing of the ring

909812/0466 BAD original

New sub-layers lAit / 1 \ Atm. ? No. ι tot * β £ »AndNunosa ··· v. 4 ^. *

ιν; ·. & vibrations of the hanging when it is in open or ■ ··· ü ^! ". Hope" is to prevent or diminish "

In addition, external valves and transfer pipes should be arranged avoided, which are very time-consuming and expensive *

The invention consists in the fact that the Bing is mounted pivotably about a diameter of the Sings as an axis or, as is known per se, by one axis parallel to a diameter of the input, located on the one side of the turbine axis and that in the latter lalle the pivoting device for attacks the Hing on the other side of the turbine axis on the Hing.

This overflow control valve is especially for a Surbinenbauart provided in the like in a common Housing a high pressure part and a low pressure part and possibly other bladed parts are provided » However, the invention can also be used with awei- or multi-housing üfurbinen are used, preferably at the axial end an 'itebinengehäusss ♦ The invention serves primarily Line for regulating large amounts of propellant flowing through the turbine or its low pressure part.

The Bing is particularly hydraulic or with servo motor power pivoted about said axis, whereby it releases more or less overflow cross-section or »that Valve closes completely.

In the drawing, three exemplary embodiments of the subject matter of the invention are shown in a longitudinal section of the turbine »

909 812/0466

BATHROOM LOCAL GINAL

1, 2 and 3 is a high pressure part, not shown an axial steam turbine with 10 and one not The illustrated low-pressure part of the turbine is designated by 11. Geaafl Fig. 1 is located inside the turbine housing 12 as a closing body of an overflow control valve serving Hing 14, which is undivided radially, surrounds the turbine shaft 13 and its ideal axis 23 coincides with the ideal axis of the turbine. This Hing 14 is about an ideal axis 15 »one diameter of the binge 14 and is perpendicular to the plane of the drawing «can be pivoted, namely by being supported by bolts 16 which are located in a radially undivided partition 17 «This partition 17 is via a Hingnut-Hingfeder connection 24 connected to the housing 12. The partition 17 separates the high pressure part 10 from the low pressure part 11 in relation to the propellant. The propellant can, however, when the Sing 14 is pivoted (see the dash-dotted position) flow from the high pressure part 10 via the base 19 into the low pressure part 11. Will the The slots 19 are only partially covered by the ring 14 the angle of sway is smaller than shown in dash-dotted lines, a smaller amount of propellant then flows into the low-pressure part 11, the withdrawal amount being greater than before is "

The intermediate wall 17 thus has a valve seat arrangement 18 which surrounds the turbine shaft 13 in an annular manner and which with the ring; Corresponds to 14 «In this case, the slits 19 extend in Unfemgsrichtung" and follow in dieeer Bichtung plurality of such slots 19 successive over 360 °. It can six tSchlitze 19 or elongated holes to be distributed over 360 ° of time, for example, "The slots 19 are distributed in particular uniformly over The partition 17 is undivided radially and has no horizontal or radial parting joint.

109812/0466

BATH

In the intermediate wall 17 there is a coaxial intermediate floor 25? which is divided radially and horizontally. This intermediate floor 25 is thus carried by the intermediate wall «The intermediate wall I7 can therefore also be used as an" intermediate floor support " "Between the intermediate floor 25" and the shaft 13 there is a shaft labyrinth seal, but which is not shown in particular.

The Gohwenken. of the Hinges 14 takes place via a pivot lever 20, which engages a bolt 22 via a slot 21, which is in a bolt holder 27 of the ring 14 is provided"

While the King 14 according to FIG. 1 when opening and closing of the valve brushes over the annular valve seat arrangement, with practically no pressure medium pressure forces on the ring 14 act, but only frictional forces in the area of the bearing (Bolt 16), the Hing 28 according to FIG. 2, which is divided horizontally, moves when it is opened from the annular, coextruding B Sits 29 in the direction of arrows 30 away. Vice versa the same applies. Here, too, there are no propellant pressure forces on the Hing 28, but only frictional forces on the bearing - see the Bolsen. 3 ^ · The partition is made here from two ring-shaped, coaxial parts 32 and 33 »die are connected to one another by means of ribs 54 and 26. the Parts 52 ■ and 53 are divided radially. It is the same Hing 28 divided radially,

According to Pig. 3, the partition is denoted by 35. she is undivided radially. At it is a storage 36 for one radially undivided ring 37 is provided. The input 37 is around the ideal axis 38, which is perpendicular to the plane of the drawing, pivotable, and swar by means of a pivot lever 39, which is similar to FIG. 1 on a bolt holder 40 of the Ring 37 attacks. In this embodiment of the invention

909812 / CU66

BATH ORIGINAL

- 5 - P 14 26 793> 6

dim- v / ird the valve against 'Sreibmibteldruckkraft opened. Iiit 41 are slots similar to the slots 19 according to FIG. 1 designated. According to FIG. 2, however, the IT is partially through-flow opening Continuously over 360 ° in a ring shape and lying coaxially.

909812/0466 ^BAD

Claims (1)

IEG-KAIIS OiOHBIHEHFABRIK GMBH 85 Nuremberg 2, Frankenstrasse 70-80 September 30, 1968 (A 50 957 Ia / 14c) ϊ? e u e r patent claim. Overflow valve, which is connected between a high-pressure part and a low-pressure part of a steam or gas turbine, »between which parts of the propellant from the turbine can be determined, and which is provided within a turbine housing between these ropes and has a ring that surrounds the turbine shaft as a ferrule a stationary partition wall surrounding the C turbine shaft is rotatably mounted, characterized in that the hinge (14, 28) is about a diameter of the hinge (14, 28) as an axis (15) or, as is known, about a diameter of the Hinges (37) parallel axis (15) located on one side of the turbine axis (23) is pivotably mounted and that in the latter]? all the pivoting device (Scliv / enkfcefcfliX 39, öcnlJ i;:; 2i, bolt 22, bolt holder 40) for the Hing (37) on the other side dex * lurbinenachsö (23) aia Hing (37) attacks. 9098 12/04 66 _iAD OBiGiHAL New uiiiwiiijö i! ») From # .aNr.ie» tei * »And« niiwsj-e 4.ν ^