SU1601498A1 - Method of washing condenser of steam turbine - Google Patents

Abstract

The invention relates to a technique for cleaning tubular heat exchangers and can be used to clean condensers in power plants. The purpose of the invention is the expansion of technological capabilities due to the possibility of washing the condensers with the water level in the drain well. The essence of the method is to create a reverse flow of circulating water using a siphon under the action of the difference in levels in the receiving and drainage wells when the water supply to the pressure conduit is cut off. At the same time, the pressure conduit is emptied, followed by stopping the drainage of water from the condenser, and the pressure in the condenser is created by communicating its outlet water chamber with the atmosphere, and the pressure conduit is permanently connected to the atmosphere. 1 il.

Description

The invention relates to a technique for cleaning tubular heat pumps and can be used for capacitors in thermal and nuclear power plants.

The purpose of the invention is to dissipate technological capabilities by enabling the capacitors to be washed with the water level in the sump well, exceeding the water level in the drain.

In the drawing, a circuit diagram of a device for implementing the method is shown.

The essence of the method is to create in the condenser a reverse flow of circulating water using a siphon under the action of the differences in the levels in the receiving and crissholes when the water supply to the pressure conduit is interrupted, and the discharge conduit is emptied with subsequent discontinuation (L

Slow down the water from the condenser and create pressure in the condenser by means of communication} 1 and its outlet water chamber with the atmosphere, and a pressure conduit is permanently connected to ().

A device for implementing a method for flushing a condenser with a receiver |,: th well 1, connecting a pressure conduit with conduit 2 with an inlet water chamber 3 of the condenser. Pressure pipe 2 has a shut off valve 4 and pipe 5. connecting pressure pipe 2 to the atomic system. The outlet water to the condenser chamber 6 is connected to the drain well 9 by a drain conduit 7 with a shut-off valve 8. There is a hatch 10 with a lid on the outlet water chamber 6. The water level in the sump well 1 is higher than the water level in the DRAIN sump 9.

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The method is implemented in the following manner

When the condenser is filled with water and the shut-off valves 4 and 8 are open, a direct flow of water from the receiving block 1 to the drain well 9 is performed by the action of the difference in water levels, valve A is fixed on the pressure conduit 2 and under the action of the level difference in the pressure conduit 2 and the drain well 9, the discharge conduit is emptied and filled with air through conduit 5. When the discharge conduit is emptied without breaking the water seal, the shut-off valve 8 is plugged and the outlet water to the chamber 6 is connected to the atmosphere hatch cover 10. At the same time, with the help of a siphon under the action of the difference in water levels in the condenser and pressure conduit 2 in the condenser tubes, the return flow of water is returned and air is flowing into the outlet water chamber, 6 from the atmosphere through the hatch 10 and the displacement of air from the pressure conduit 2 through pipe 5,

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The proposed method provides high quality C1: washing the condenser tubes.

Invention Formula

The method of washing the steam turbine condenser with pressure and drain conduits and water KaMepaj4H, which consists in creating a reverse flow of circulating water using a siphon under the action of the level difference in the receiving and drain wells when the water supply to the pressure conduit is stopped, which is different from that; in order to ensure ease of operation by allowing the capacitors to be washed with a level in the sump well above the water level in the drain, the discharge conduit is emptied, followed by suppressing the water from the condenser and creating pressure in the condenser by communicating its outlet water chamber with the atmosphere, V at the same time, the pressure head is constantly reported with a 7 spheres.

Editor A, Kozoriz

Compiled by, Chyshkin Tehred M. Khodanych

Order 3265

Circulation 538

UIP of the State Committee for Inventions and OPEN; under the State Committee on Science and Technology of the USSR 113035 ,, Moscow, Zh-35, Raushsk iab., l. 4/5

Proofreader T.Malets

rio / iu CHoe

Claims (1)

Form ul at invention The method of washing the condenser of a steam turbine with pressure and drain water and water chambers, which consists in creating a reverse flow of circulating water using a siphon under the influence of the difference in levels in the receiving and drain wells when the water supply to the pressure pipe is cut off, characterized in that, in order to ensure convenience in operation by providing the ability to flush capacitors with a water level in the inlet well exceeding the water level in the drain, empty the pressure pipe with the subsequent cessation of discharge ode condenser and create capacitors in the output air syvanie water chamber 6 from the atmosphere through the hatch 10 by pressure re posts its water outlet chamber with the atmosphere,