Automatic cleaning system for steam turbine power generation small unit condenser

Abstract

The invention discloses an automatic cleaning system for a steam turbine power generation small unit condenser. A wave flow machine is installed on a cooling water circulation pipeline, a wave flow dished plate in the wave flow machine rotates at low speed, so that slow periodic small fluctuations happen on flow velocity in condensation pipes, and through excitation and intensification of a vibration inducing spring low in elastic coefficient, a steel wire cleaning spiral generates radial vibration with certain strength, tens-of-millimeter axial reciprocating movement and small-angle circumferential swing, which has a cleaning effect with sufficient intensity on soft and hard scale. The automatic cleaning system further has the advantages that the range of intensifying convective heat transfer in the condensation pipes is large, the inner walls of the condensation pipes are not abraded, and resistance is low.

Description

technical field [0001] The patent of the present invention relates to an automatic cleaning system for a condenser of a small steam turbine power generation unit, and relates to the automatic cleaning and anti-scaling of soft and hard scales in the condenser tube of the vacuum condenser of a small steam turbine power generation unit and the strengthening of cooling convection heat transfer. It is also suitable for automatic cleaning and anti-scaling of soft and hard scale in the cooling pipe of water coolers in other industries and strengthening of cooling convection heat transfer. Background technique [0002] There are many automatic cleaning technologies for vacuum condensers of generator sets, among which the rubber ball cleaning system is the most widely used. However, the water quality of small steam turbine generator sets is often not as good as that of large-scale units, and the cleaning effect is not good enough; and there is still more than 1.5% scale vacuum loss i...

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Problems solved by technology

[0003] Plastic twist belt self-rotating cleaning technology (research on automatic on-line continuous descaling and anti-scaling technology of steam turbine condenser self-rotating plastic twist belt, Modern Chemical Industry, 2002, No. 6), the effect on soft sewage scale is relatively good, but it is not effective for the ubiquitous in-pipe The hard scale on the bottom layer of the wall is basically ineffective

Self-rotating steel wire spiral cleaning technology (experimental research on heat transfer technology of automatic rotating spiral wire, Chemical Equipment Technology, 1997, No. 5), has strong automatic cleaning ability, and has a good convective heat transfer enhancement effect, and has a simple structure and low resistance. Low, the overall performance is relatively ideal, but there is a fatal defect of wearing the inner wall of the tube

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