SU54005A1 - Dual steam tandem machine - Google Patents

Description

The invention relates to a twin steam tandem machine with a free spool in a low pressure cylinder.

In the proposed car is free; the spool is replaced by a piston rigidly connected to it with the help of a piston, and the steam from the high pressure cylinder of the opposite side is removed, j

The drawing shows a diagram of the proposed dual steam tandem machine.

The machine has two cylinders / and 2 high pressure pistons 5 and 6 I and two cylinders 3 and 4 low pressure pistons 7 and S. The spools of high pressure cylinders are controlled by a link mechanism, and the low pressure cylinders are equipped with spool valves. 9 and 10, with which pistons are rigidly connected // and 12. Cavities to the right and to the left of piston II (or 12) communicate with the cavity of cylinder 2 (or /) high pressure of the opposite side by means of channels with holes J3 and 14 (or 15 and 16) located near the middle of the stroke of the piston 6 (or 5) .I

Steam from the boiler through the superheater j enters the cavity of the spool cy- j

High pressure cylinders through channels 77 and 18. When the pistons 5 and 7 of one of the two dual tandem machines reached the extreme right position, the piston 6 of the high-pressure cylinder 2 of the opposite side passes by the channel hole 14, through which steam passes into the cavity of the piston 11 as a result of this piston 11 moves to the right and moves the spool 9 (as shown in the diagram). After that, the pistons 5 and 7 move in the opposite direction while the pistons 6 and S go to the right to their extreme position. When the piston 5 passes by the hole 16 kana.da, steam through this channel enters the cavity wall 72 and mixes it to the right, and with it the valve 10.

When the pistons 6 and 8 when moving to the left reach the middle of their stroke, fresh steam through the hole 13 and the corresponding channel enters the cavity of the piston 77 and moves it and the valve 9 to the left.

Finally, when the pistons 5 and 7, moving to the right, pass the middle of the stroke, the steam through the hole 75 and the corresponding channel enters the cavity of the piston 12 and moves

it with spool} 0 left. After this, the described cycle is repeated.

Subject and d ore of i.

A dual steam tandem machine with a free spool in a low pressure cylinder, characterized in that the free spools 5 and 10 .f. / one (

They are rigidly connected to pistons // and 12 with fresh steam from a high-pressure cylinder of the opposite side, injected by a corresponding piston 6 or 5 through channels with openings 13, 14 or 15, 16 located near the drain;