SU41235A1 - A device for testing and adjusting a Westinghouse type steam distribution device. - Google Patents

Description

The present invention is a modification of the usual methods of checking the density of steam distribution devices, as well as adjusting the steam distribution itself, becoming its main goal to improve the accuracy of readings when monitoring the operation of steam distribution devices when they are tested; The objectives are achieved by taking into account, by accumulating in separate chambers, passing through leakages or channels in the steam steam distributor under test.

In FIG. 1 shows a vertical section of the device, FIG. 2 - side view of it in assembled form.

The device consists of two hermetically separated chambers 7 and 8. In the lower chamber 8, a tube 9 is rolled in between the upper and lower walls. A steam distribution mechanism 10 of the test pump is installed on the upper part of chamber 7 and bolted as usual.

Channels 9 and 11 are used to connect the cavities of the test steam distributor with chambers 7 and 9.

To move the same. - alternating slide valve of the mechanism under test, an adaptation was used, consisting

(315 b)

FROM the tube 11, which has in its upper part a flange 12 with a hole in the usual fory, like that of the pumps of Westinghouse and serving for the passage of the rod 6 of the track-and-slide valve.

To communicate a stem 6, a spool with a tube and the latter is equipped with a protrusion 13. The tube 11 with the help of a shank 14 supported on the lever actuator 15 may last up and down. The upward movement of the tube 11, and consequently of the variable-displacement spool of the inventive mechanism, is limited by the stop of the flange 12 into the lid of the test mechanism 10, and the movement of the tube down is limited by the stop of its end part to the fitting 16. Fresh fitting is supplied through the fitting 17, the inlet of which is controlled by the crane 18.

To measure the vapor pressure, chambers 7 and 8 are equipped with pressure gauges.

The test of the mechanism is carried out in two kinds: a test for the density of mutual fitting of the parts of the mechanism and a test for the mutual action of a differential piston with a variable-displacement spool.

In the first case, to determine the fit density of the small disk rings

be at zero. In the lower position of the lever 15, the boiler pressure should indicate the pressure gauge of chamber 8, and the arrow of the pressure gauge of chamber 7 should be at zero.

The subject matter of the invention.

A device for testing and adjusting a Westinghouse type steam distribution device, characterized by its use for the detection of leaks

in the steam distributor, two separate scooters 7 and 8, which are used to fix the test distributor on them and connected by channels 9 to the small piston cavity of the steam distributor and tubes 11 with the large piston cavity of the same paradistributor, and a manual actuator is used to move the steam distributor spool 15 associated with the spool.