SU38425A1 - Injector suction for work with crushed and fresh steam - Google Patents

Description

The invention relates to suction for working with fresh and fresh steam injector, in which the organ regulating the access of that steam is controlled by means of a spool or valve controlling simultaneously the inlet of fresh steam into the nozzles.

In the proposed injector, between the control of the fresh steam and the control of the crush of steam, a control valve for fresh steam is inserted, the stem of which has two pistons, one of which is under pressure of the steam of the slide valve and the other under the counteraction of the fresh steam.

In the schematic drawing of FIG. 1 shows a longitudinal section through an exemplary embodiment of the injector, and FIG. 2 is a longitudinal section of another embodiment of the injector.

Injector. (Fig. 1), located in the driver's booth, is a body composed of several parts 7, 2; ..; 4, inside which there are a number of cones 25, 25, 26, 27, 29; in the upper part of the body there is a spool 7. with a hole S and a recess 45, fastened on a ball, controlled by the handle 5; a valve 20 is mounted on the end of the rod 6; it has some longitudinal

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movement relative to the thrust and covering the access of steam to the cone 25. In the left part of the injector (according to the drawing) there is a rudder control consisting of a valve and pistons JP and # / mounted on a common rod 55; the valve - / О closes the opening, which communicates the chamber - with the pipe 5, supplying a pair of bristles; the piston 5P is under the influence of steam in the chamber 36, and the piston // under the influence of the bottom of the steam in the channel is # 5. communicated with the spool box of the machine and from above - the springs 44. Between the bodies 5, 7, 2 control fresh steam and bodies /, 5Р, 4 / control the steam steam inserted valve with piston / P and valve 55, mounted on one common rod 5 / . The chamber / 5 of the injector is equipped with a crane 55. In the lower part of the injector there is a messenger valve 52 loaded with a spring 34 and under the influence of a lever 33 connected to the piston 5 /.

Before actuating the injector with fresh steam supplied through the steam pipe 46, chamber 2, channel and chamber 36 are filled, in which steam presses on the piston 39; —the spring in the same direction — acts on the piston 41. Therefore, valve 40 is closed.

To actuate the injector, raise the handle 5, which is not behind itself 6, raising the valve 7 by the amount of idling in the valve 20 so that the hole 8 in the valve 7 falls against the channel 9; then steam through the hole 8, the channel 9 and the hole 70 passes into the chamber // and then into the double-sided cone 72; capturing water supplied by tube 47 from chamber M, steam drives it through a double-sided cone / 5 through a pipe / 5 into a chamber / and into a cone 26. At the same time, channel 4S-37 overlaps spool 7. Since opening 48 and channel 42 are located in different sections x, steam from chamber 24 cannot enter the atmosphere through channel 42. If the water in the tender is so hot that the injector cannot inject it, then before starting up the valve J5 is opened for a short time to release part of the water out of the chamber 8 s The goal is to get better conditions when pumping hot water. After that, raise the handle 5 above and at the same time move the spool 7, so that the recess 43 becomes against the channels 48-57 and 42, so that the steam from the chamber 36 goes into the atmosphere; at the same time, a 6-ha ha with a shoulder 52 opens valve 20, and steam from chamber 24 passes into a cone 23; by this time, the hole 8 in the spool 7 is blocked, so that the fresh steam no longer goes through the channel 9 to the water suction. At the same time, since the spool raised to its highest position does not close more than channel 76, steam from chamber 24 enters channel / 6 and, in the absence of steam in the spool box, lifts valve .55 and piston 79; then fresh steam goes through channel 2 / to nozzle 22 and to cones. Since at this time there is no steam in the spool box, the valve 40 is pressed by the spring 44 to its seat.

With the regulator open, when steam is in the gate, the steam going through channel 76 cannot lift piston 79 and is not spent anywhere; but then, under the action of the steam in the vane, the piston 47 rises, compressing the spring 44, and raises the valve 40. by virtue of which the supply pipe 3S is crumpled

steam fills chamber 49 and passes through cones 25, 26, 27, while water flows through cone 26,

When water is pumped, messenger valve J2 rises and releases some of the water to the outside; but as soon as pressure is created in chamber 30, water is pumped to piston 5 / and through this piston and lever 33 it closes valve 32.

The injector shown in FIG. 2, contains all the same component parts, but in a slightly modified form; respective parts of the injector are denoted by the same numerals as in FIG. one.

When working with fresh steam, they lift the handle 5, which is not behind it 6 with the shoulder 52; when lifted, the shoulder rests against the valve 7 and lifts it, giving access to the fresh steam from the chamber 24 through the four round holes in the valve 77 to the channel 9, the cones 72 and 73 and further. The passage between the cones 72 and 73, the steam produces a vacuum at the water purification grid, screwed to the fitting 57, and sucks from the tender through the pipe 4 water, which goes through the channel 78 to the cone 26 and further. Upon further raising of the handle 5, the valves 28 and 20 are raised, giving access to the fresh steam to the cone 23 and further. At the same time, the fresh steam from the chamber 24 goes through the channel 76 and, through the gap 54, presses on the piston 77 and lifts it and the valve 55 mounted on the same rod, which closes the gaps 54, together with the channel 76 with the channel 27. Thus , fresh steam from chamber 24 passes through cone 23 and nozzle 22, as well as into chamber 49 and cones 25 and 27, reinforcing water from cone 26. Condensing water, steam with water passes through mixing cone 29, enters chamber 30, creates pressure in it, opens the feed valve 59 and goes to the boiler; at the same time, the water from chamber 30 through tube 58 goes into the chamber above piston 37, presses on the latter and lowers the messenger class. pan 32 to its nest.

When the locomotive regulator is opened, steam from the spool box through pipe 45 enters the space above piston 79, moves it down and with it presses valve 55 to its

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the saddle; then the chamber 16 is separated from the channel 2 / and the annular nozzle 22 and communicates through the annular gap 54 with the channel 56. Fresh steam from the chamber 24 through the channel 16 will fall into the chamber under the piston 36, raise it "and with it the valve 40, overcoming the pressure of the spring 44; then the steam from pipe 38 enters chamber 49 and cones 25, 27 and 27n, while fresh steam is added only through cone 23.

When the locomotive regulator is closed, the piston 19, released from the vapor pressure from above, rises due to the vapor pressure from the channel 16 to the piston / 7, and the annular gap 54 closes with the valve 55.

The subject matter of the invention.

Claims (6)

1. An injector for suction and fresh steam operation in which the body regulating the access of that steam is controlled by means of a spool or valve regulating simultaneously the inlet of fresh steam into the nozzles, characterized in that in the manual control of the injector 7 A channel for supplying additional fresh steam to the injection nozzle 22 and into the chamber of that pair 49, an automatic valve 55 of one-way action is installed, perceiving the pressure of the fresh steam and through the piston mounted on the valve stem 19 - back pressure steam from the slide valve housing (Figure 1). 2. In the suction injector for operation with knee and fresh steam injector according to claim 1, the use of valve 40 for the pair, equipped with two pistons, of which the piston 39, depending on the position of the valve 7, is under the action of fresh steam or is in communication with the atmosphere, and the other piston 41 is under the pressure of steam in the spool box and the counter-pressure of the spring 44 (Fig. 1). 3. The form of the execution of the suction for operation with crushed and fresh steam injector according to claims. 1 or 2, characterized in that the automatic valve 55 is designed as a two-way valve for the purpose of its simultaneous use as a servo motor valve that actuates a fresh steam pressure valve 0 for this pair (Fig. 2). 4. The form of making the injector suction-operated for working with fresh and fresh steam according to claim 1, characterized in that the chamber 49 for that pair is extended beyond the injector stage fed from it and is provided with one or more nozzles 27 to form an additional suction in the injector body camera 50. 5. In suction for working with fresh and fresh steam injector according to claim 1, use a crane 55 to discharge part of the water from chamber J8 in order to obtain better conditions for hot water injection (Fig. 1). 6. In the suction for working with fresh and fresh steam injector according to claim 1, use a device for forcibly closing the flow valve with 32 water per piston 5 / connected to a lever that acts on the valve. copyright certificate I. 0. Trofimova № 38425