DE67709C - Vapor pressure regulator with two liquid vessels connected by a hollow lever and a hollow shaft - Google Patents

Description

IMPERIAL

PATENT OFFICE

PATENT DOCUMENT

CLASS 47: Machine elements.

Patented in the German Empire on April 2, 1891.

The pressure regulator illustrated in the accompanying drawings is suitable for high or low-tension steam. Fig. Ι shows the pressure regulator partially in the view, partly in section, suitable for regulating the combustion air for steam boiler firing in general, especially for low-pressure steam boiler furnaces, in order to achieve the Preserve pressure in the boiler at a certain level respectively. do not exceed this allow.

The pressure regulator consists essentially of a vessel, G, Fig. 2, which is motionless and of a vessel, G _1, Fig. 1, which sits at the end of a rotatable lever about the axis A H. The interiors of both vessels are connected by the tube r and the hollow axis A in such a way that the contents of G _{can be conveyed to G 1} under a certain pressure. G is filled with mercury. G is connected to the interior of the steam boiler through pipe R , and the pressure in the boiler is communicated to vessel G through pipe P. Under this pressure the mercury rises from G to G ₁ . As a result, G ₁ , which was previously held in height by the counterweight P, gains weight, so that it overcomes the counterweight P and sinks, while P, on the other hand, rises. This has the consequence that the flap K attached to the lever H under G ₁ , which had previously been open under the predominance of P, closes and thereby prevents further combustion air from flowing to the grate of the boiler. If the pressure in the boiler rises even more, more mercury _{will exceed G to G 1} and cause the flap K ₁ to open, through which air flows into the flues above the grate and thereby cools or cools the boiler wall. reduces the pressure in the boiler. When the pressure drops, the mercury will fall back again from G ₁ to G, P will become overweight again, K ₁ will close and K will open.

The pressure, which should not be exceeded in the boiler, can be increased by the bearing ^ can be set precisely.

The lever H carries a stop pin w, Fig. Ι, ι a and 2, which BEZW in the lowest position of the lever. of the vessel G ₁ at a fixed point t of the flange χ.

The lowest position of the lever H is thus fixed. The highest position of the same, however, is variable, namely the same is set by the movable point ν of the bearing \ which is rotatable about the axis α and lockable by the screw w, Fig. Storage % is provided with a pointer, which shows the pressure on an associated scale y firmly connected to the flange χ , which corresponds to the respective position of the lever H , and which is equal to a mercury column at the height at which the vessel G ₁ is above its lowest position. The stop pin u of the lever H thus moves between the fixed point t of the flange χ and the movable point v formed by the bearing \ , and the vessel G ₁ thus adjusts its height to the position of the point ν on the bearing \.

Claims (2)

In Figs. 3, 4 and 5 the pressure regulator is shown for converting high pressure steam to lower pressure steam. For this purpose it is also provided with a fixed vessel G, a movable vessel G1, a counterweight P, a tube R, a hollow axis A and a movable bearing ^. The lever H respectively. Vessel G1 rises and falls under the same conditions as described. Instead of that, however, the movements of the lever to open or close the flap K or K1 are used, they rather serve to move a rotary slide valve S provided with slots s, FIG. 5, in that lever // is connected to lever H1 by push rod L. The high-tension steam arrives from side I, flows into the stationary cylinder C and penetrates through the slots 5 5 over to side II. The slits in C communicate with the slits in S in such a way that they can either be completely open or completely closed, or can occupy any position in between. The pressure on side II will relate to the pressure on side I entirely according to the size of the openings s s. However, these openings are more or less opened or closed by moving the lever H. From side II, tube R, Fig. 3 and 4, leads into the interior of G, and G1 will rise or fall entirely in accordance with this pressure, thereby opening or closing the openings SS and the pressure on side II at a certain level depending on the slots ί s are made. Push rod L is provided with a slot in order to be able to adjust the openings of the slots s s as required. ! Godfather ντ claims: 1. In the case of steam pressure regulators with a fixed and a movable vessel, the arrangement of the movable vessel (G ₁ ) on a hollow, counterbalanced lever (H) which is attached to a hollow, rotatably mounted shaft (A) , the cavity of which is through a The immersion tube (r ) leading into the stationary vessel (G), in conjunction with the cavity in lever H, connects the vessel spaces G and G ₁ in such a way that the pressure of the vapor introduced into G causes a liquid according to G _{1 contained in G} is pressed and the latter vessel sinks more or less, by which rotary movement is acted on the draft control of a boiler or the control device of a steam line (Fig. 3 to 5). 2. In the pressure regulator characterized in claim 1 for setting the deflections of the same the arrangement of a on the flange (x) of the bearing of the hollow axis (A) by means of screw (w) or the like adjustable and lockable pointer bearing (%) together with the associated scale (y), which pointer bearing serves as a stop for a pin (u ) attached to the lever (H) and determines the highest position of the vessel G ₁ . For this rBlatt drawings.