SU1326863A1 - Steam turbine surface condenser - Google Patents

Abstract

The invention relates to a power system and improves the efficiency of a condenser by improving the cleaning of the tube return pipe. The cooling water is supplied to the inlet chamber (K) 2 of the condenser 1, to which air is supplied by means of the device 8. The gas-liquid mixture (HS) formed enters the pipes 6 of the forward run, facilitating their cleaning. Then the HS enters the rotary K 4, in which a perforated partition (G1) 10 is installed with a hole diameter of 2-5 mm at an angle of 45-90 ° C. to the plane of the tube plate 5. With the passage of the HS through P 10 there is a dispersion of air bubbles. The homogeneous flow of the mixture with air bubble sizes less than 5 mm formed in P 10 enters the return pipes 7, facilitating their purification. Next, the HS enters the outlet K 3, where air is discharged from it through the pipe 9, and the cooling water enters the drain manifold. 1 il. ((L with N3 O5 OS 05 SLE

Description

The invention relates to a power system, primarily to steam turbine condensers of heat and power plants.

The purpose of the invention is to increase the efficiency of the surface condenser by improving the cleaning of the tube return pipe.

The drawing shows a surface condenser of a steam turbine, a longitudinal section.

The condenser comprises a housing 1 with an input 2, an output 3 and a rotating 4 chambers, inside of which, in the corresponding sections of tube plates 5, bundles of tubes of forward 6 and reverse 7 are installed. The inlet chamber 2 is provided with an air intake device 8, and the outlet 3 with an air inlet 9. In the rotary chamber 4 there is a perforated partition 10 with a hole diameter of 2-5 mm at an angle of 45-90 ° to the plane of the tube plate, in which a bundle of pipes 6 are installed.

The operation of the condenser in the mode of cleaning the tube bundle is carried out as follows.

The cooling water is supplied to the inlet chamber 2 of the condenser 1, into which air is supplied by means of the device 8. The gas-liquid mixture formed enters the pipes 6 of the forward run, facilitating their cleaning. Next, the mixture enters the turning chamber 4.

With the passage of the perforated partition 10 is the dispersion of air bubbles. Formed by

by a septum, a homogeneous flow of gas-liquid mixture with air bubble sizes less than 5 mm enters the return pipes 7, facilitating their cleaning. Further

the gas-liquid mixture enters the outlet chamber 3, where air is discharged from it through pipe 9, and cooling water flows through the pipe into the drain manifold.

The proposed design increases the efficiency of the capacitor by

improved cleaning of the return tube bundle, which is achieved by supplying a gas-liquid mixture with air bubble diameters less than 5 mm.

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Claims (1)

Invention Formula The surface condenser of a steam turbine, comprising a housing with inlet, outlet and rotary chambers, inside of which in the corresponding sections of tube plates are installed tube bundles of forward and reverse strokes, the inlet chamber is equipped with an air supply device, and the outlet has that, in order to increase the efficiency of work by improving the cleaning of the return pipes, the condenser is additionally equipped with a perforated partition with a hole diameter of 2-5 mm installed in the slewing chamber e condenser at an angle 45-90 ° to the plane portion of the tube plate, in which is mounted a bundle of tubes forward stroke.