Internal cleaning device for lubricating oil pipeline of steam turbine generator unit

Abstract

A device for cleaning the interior of a lubricating oil pipeline of a steam turbine generator unit relates to a pipeline cleaning device, and is characterized in that a surrounding steam discharge hole (9) is formed in a front hemisphere (10) of an ellipsoid (1), and a connecting pipe (12) arranged at the rear end of a rear hemisphere (11) of the ellipsoid is fixedly connected with the front end of a high-temperature-resistant steam hose (4); a multi-section universal sleeve is sleeved from the middle part to the front end of the high-temperature-resistant steam hose, and the outer part of the rear end of the multi-section universal sleeve is fixedly connected with a control handle through a lantern ring (6); external steam enters a steam distribution cavity (34) in the ellipsoid through a high-temperature-resistant steam hose, and the steam entering the steam distribution cavity washes the periphery of the inner wall of a lubricating oil pipeline including a turning part through a steam discharge hole in a front hemisphere; through high-temperature and high-pressure steam blowing, the damage to the pipeline caused by chemical cleaning in the prior art is effectively overcome.

Description

technical field [0001] The invention relates to a pipeline cleaning device, and relates to an internal cleaning device of a steam turbine generator oil system pipeline, in particular to an internal cleaning device of a lubricating oil pipeline of a steam turbine generator set. Background technique [0002] It is well known that a steam turbine generator is a power generation device that uses a steam turbine as the prime mover to drive the rotor to rotate, and uses the principle of electromagnetic induction to convert mechanical energy into electrical energy; it mainly includes a steam-water system, an oil system, and an adjustment and security system; It is divided into: regulating oil part, security oil part and lubricating oil part. The pipelines of these oils are intricate and complicated, especially the lubricating oil system of large and medium-sized steam turbine generators uses an independent anti-oil "EH oil", its power From the outlet of the main oil pump, a lower p...

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Problems solved by technology

[0002] As known, a steam turbine generator is a power generation device that uses a steam turbine as a prime mover to drive the rotor to rotate, and converts mechanical energy into electrical energy by using the principle of electromagnetic induction; it mainly includes a steam-water system, an oil system, and an adjustment and security system; the oil system of the steam turbine can be used according to its function. Divided into: regulating oil part, security oil part, lubricating oil part, the delivery pipelines of these oils are intricate, especially the lubricating oil system of large and medium-sized turbogenerators, which uses independent fuel-resistant "EH oil", its power From the outlet of the main oil pump, a stream of oil with lower pressure is ejected after passing through an oil injector "ejector". A layer of oil film is formed between the rotor journal and the bearing bush to lubricate, and at the same time, the heat generated by the bearing is taken away by the oil; the existing large and medium-sized power station steam turbine generator set lubricating oil pipeline is an important auxiliary system of the steam turbine. The installation and use quality of the lubricating oil pipeline directly affects the normal operation of the lubricating oil system and the steam turbine; in order to ensure the installation quality of the system pipeline and improve the internal cleanliness, it is the focus of the installation and control of the lubricating oil pipeline; the existing lubricating oil pipeline usually adopts Made of stainless steel, the construction method of cleaning the inner wall adopts chemical cleaning (nitric acid tank washing), which has a long construction period, high construction cost, great potential safety hazards and pollutes the environment

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