SU1239499A1 - Arrangement for removing steam-gas mixture from steam turbine condenser - Google Patents

Description

The invention relates to energetic and can be used in steam turbine condensers.

The purpose of the invention is to increase efficiency. .

FIG. 1 shows the proposed installation; in fig. 2 - cut. A-A in FIG. one.

The installation includes a housing 1 with a device for creating a vacuum (not shown) and a nozzle 2 for supplying a vapor-gas mixture (PGS from a condenser, siphon made in a bidet of a moving and fixed telescopic pipes 3 and 4, respectively, to it, a float with the mixture collection chamber 5, the bubbling chamber 6, and the shaped inner shell 7, with the float body 8, there is an isolated, partially flooded cavity 9, to which appropriate devices for filling and drying are connected. The ameria 6 of the bubbling is formed by a conical shell 1, the walls of the pipe 3 and a perforated partition 11 with nozzles 12, connecting the chamber cavity 6 with the mixture collection chamber 5. Between the walls of the chamber 6 and the shell 7 there is an annular channel 13 connected in the lower part with the cavity of the housing 1 and the pipe 14 for supplying water installed coaxially stationary pipe 4. The chamber 5 of the collection of the mixture is separated from the cavity of the housing 1 by means of a hydraulic lock 15.

The installation works as follows. .

When the inlet is closed. The CGS from the condenser enters the pipeline 14 with cold water of a pressure of 3 meters. The pot is located in the lower part of the housing 1, while the bubbling chamber 6 is located approximately at a height of 9 meters. When connecting the device to create a vacuum (for example, an ejector) in the cavity of the housing forms a vacuum and water rises up to the perforated partition 11 of the chamber 6 and

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merges through the movable telescopic tube 3 and further the tube 4 into a drain well (not shown).

With a further increase in vacuum to the value at which water on the surface is on the saturation line, the pressure rises to the upper position. This pressure is set because, at this time, the vacuum device operates in idle mode (without air flow), for example, the water jet ejector in idle mode creates pressure at which water is on the saturation line. Further, during normal operation of the installation, the task of the device (water jet ejector) is precisely to maintain a deep vacuum in the idling mode.

Thereafter, the cavity 9 of the body 8 of the float is filled with water until it appears in the vent. This means that the chamber 6 of the bubbling is recessed as much as possible, and the maximum water flow through the siphon. Then, atmospheric air is supplied to the bubbling chamber 6 through throttle devices (not shown) and the flow rate and pressure are measured, and the immersion of the bubbling chamber 6 is then altered by draining the water from the float.

Under optimal conditions (air pressure in front of the bubbling chamber 6

5 must be equal to or less than the pressure in the condenser, the air flow should be. , wives to be not less than specified for a given turbine unit), cut off the air supply through throttle devices and connect the unit to a condenser for suction gas mixture.

The vapor-gas mixture through the nozzle 2 through the chamber 5 and the nozzle 12 enters the bubbling chamber 6 and from there through the holes of the partition 11 of the penetration; It flows into the water and the latter is carried away into the siphon of the pipe 3. The velocity of the water-air mixture above chamber 6 in the upper part of the siphon can be set at 4 m / s, as for airlift.

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Editor N. Tupitsa

Order 3383/38 Circulation 589 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Compiled by V. Chirkov

Tehred O. Gortvay Proofreader V. But ha

Claims (1)

INSTALLATION FOR REMOVING A STEAM-GAS MIXTURE FROM A VAPOR 'TURBINE CONDENSER, comprising a housing with a device for creating a vacuum and a nozzle for supplying the mixture from a condenser connected to it, so that in order to increase the economy , the installation is equipped with a siphon made in the form of a movable and fixed telescopic pipes mounted coaxially on the upper particles. a movable pipe with a float chamber for collecting and bubbling the mixture and a curly inner shell forming an insulated, partially flooded cavity with the float body and a water supply pipe, while the mixture bubble chamber is formed by a conical shell, the walls of the movable telescopic pipe and an additionally installed perforated partition with pipes, an annular channel is formed connecting the cavity of the chamber with the chamber for collecting the mixture, the walls of the curly shell and the chamber for bubbling the mixture parts with cavities of the water supply pipe and the installation casing, and in the upper part with the cavity of the movable telescopic pipe, and the mixture collection chamber is isolated from the cavity of the housing> by installing a water seal. SU. „, 1239499