Oxide skin separation assembly and method

A technology for separating components and separation methods, applied in chemical instruments and methods, solid separation, magnetic separation, etc., can solve problems such as the inability to eliminate solid particle erosion, and achieve the solution of solid particle erosion, avoid solid particle erosion, and avoid accumulation The effect of clogging or even pipe bursting

Pending Publication Date: 2017-10-20
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology

[0005] Even so, the above methods still cannot eliminate the occurrence of solid particle erosion problems

Method used

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  • Oxide skin separation assembly and method
  • Oxide skin separation assembly and method
  • Oxide skin separation assembly and method

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with specific embodiments, which are for explanation rather than limitation of the present invention.

[0039] The present invention proposes an oxide scale separation assembly, which includes a separation device installed on a high-temperature and high-pressure steam pipeline 1. The separation device includes a sampling pipe 2, a separator 8 and a collector 12 arranged in sequence; the separator 8 is configured as a pressure pipe or container that uses magnetic force, centrifugal force or gravity to separate the oxide scale 5 in the steam. In order to avoid welding stress between different materials, the material of the sampling tube 2 is the same as that of the steam pipe 1. In order to make the magnetic force penetrate the separator 8 and the collector 12 and act on the oxide scale 5, the material of the separator 8 and the collector 12 is not magnetic Of austenitic stainless steel.

[0040] S...

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Abstract

The invention relates to an oxide skin separation assembly and an oxide skin separation method, which can efficiently remove oxide skin and eliminate corrosion of oxide skin particles to solid particles of a steam turbine. The separation assembly comprises a separation device, wherein the separation device is used for separating and collecting oxide skin in steam in a steam pipeline; the separation device comprises a sampling pipe, a separator and a collector which are connected in sequence; and the sampling pipe is connected to the steam pipeline, the separator is used for separating gas and solid of the oxide skin in the steam, the oxide skin outlet end of the separator is connected with the collector, and the steam outlet end of the separator is connected to a steam recycling pipeline. The separation method comprises the following steps of positioning and installing the separation device in the oxide skin separation assembly on the steam pipeline, and correspondingly arranging the separation device in a position with the maximum oxide skin concentration in the steam pipeline under the action of gravity and centrifugal force; accessing by virtue of the sampling pipe, separating the oxide skin in the steam by the separator, collecting the obtained oxide skin in the collector, and returning the steam of which the oxide skin is separated to the steam recycling pipeline.

Description

Technical field [0001] The invention belongs to the field of gas-solid two-phase flow, relates to the separation of oxide scale in steam of a generator set, and specifically relates to an oxide scale separation component and method. Background technique [0002] Gas-solid two-phase flow is a flow system composed of two-phase materials, gas and solid. It mainly studies and analyzes the flow pattern, as well as the movement law of the dispersed phase in the continuous phase and its influence on the transfer and action process. [0003] During the operation of thermal power plants, a large amount of oxide scale is often generated in the superheater and reheater. As the thickness increases and the load of the unit changes, the oxide scale will fall off the inner wall of the pipe, and part of it will flow out with the steam, forming a gas-solid two-phase flow of oxide scale and steam in the main steam pipe and the superheated steam pipe. After such a gas-solid two-phase flow enters the...

Claims

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Application Information

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IPC IPC(8): B03C1/30
CPCB03C1/30
Inventor 闫爱军汪德良郭俊文梁法光董红年
Owner XIAN THERMAL POWER RES INST CO LTD
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