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Boiler layered hoisting construction method

A construction method and boiler technology, which is applied in the direction of boiler support/positioning device, etc., can solve the problems of long construction period, long layered arrival period, high quality risk, etc., to reduce up and down cross operations, alleviate the shortage of mechanical resources, and improve safety conditional effect

Inactive Publication Date: 2017-12-08
SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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Problems solved by technology

As a result, the above-mentioned equipment has to be hoisted after the hoisting of the steel frame is basically completed. At that time, only the method of side penetration and horizontal displacement can be adopted. This mode has a long construction period and takes up a large site. At the same time, there are still poor construction conditions, Low work efficiency, high quality risk, etc., especially the construction safety risk is very large, which is unfavorable to all aspects of construction
[0004] In addition, the number of platform escalators carried on the steel frame structure of the boiler is large, the layered arrival period is long, and the installation workload is large. It is generally difficult to install layer by layer along with the steel frame installation. In the later stage, centralized time installation is adopted. This mode is adopted. The safety conditions of the upper and lower passages during the steel frame installation stage are poor, and there are a large number of up and down cross operations during the installation of the platform escalator, so the safety conditions during the entire boiler steel frame installation stage are poor

Method used

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[0070] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0071] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0072] As introduced in the background technology, there are deficiencies in the prior art that air preheaters a...

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Abstract

The invention discloses a boiler layered hoisting construction method. By means of the method, the problem that low working efficiency is caused due to later hoisting and mounting of an air preheater and the like in the prior art is solved. The method has the advantages of high safety performance and short construction period. According to the scheme, the boiler layered hoisting construction method comprises the steps of mounting boiler steel frames in a layered mode, and prestoring a primary cold air channel, and / or a primary hot air channel, and / or a secondary cold air channel, and / or a secondary hot air channel, and / or an air preheater, and / or a denitration outlet flue, and / or a burning-out flue, and / or a denitration reactor shell in the process of mounting each layer of steel frame.

Description

technical field [0001] The invention relates to the installation of boilers in power plants, in particular to a construction method for layered hoisting of boilers. Background technique [0002] At present, the boiler steel frame of the power plant is generally divided into two parts according to the hoisting content in the construction stage, one is the steel structure of the boiler steel frame, and the other is the equipment carried on the steel frame, platform escalators and other structures. [0003] During the boiler steel frame construction process, layered and segmented hoisting and continuous construction are generally adopted. The equipment carried on the boiler steel frame structure (such as the cold primary air duct, hot primary air duct, and cold secondary air duct shown in the drawing, the The supplied flue, hot secondary air duct, air preheater, etc.), these structural parts are not pre-stored in advance along with the hoisting of the steel frame, which directl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B37/24
CPCF22B37/24
Inventor 仲崇学潘清波张宝董长竹钱新贺宫俊亭张启锡王琳张鲁鹰张全鹏闫政旭
Owner SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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