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Deaerator assembling method

An installation method and deaerator technology, which are used in degassed water/sewage treatment, nuclear power plants, nuclear engineering, etc., can solve the problems of long hoisting time, long welding construction period, complicated procedures, etc., saving time, manpower and material resources, The effect of good welding conditions and simple installation process

Active Publication Date: 2012-07-25
CHINA NUCLEAR POWER DESIGN COMPANY
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Problems solved by technology

[0014] The technical problem to be solved by the present invention is to provide a deaerator installation method to solve the problems of long hoisting time, long welding period, high investment and complicated procedures

Method used

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Embodiment Construction

[0034] Such as figure 1 As shown, it is the installation steps of the deaerator, and the installation steps are divided into the following parts:

[0035] 1. Deaerator production: The deaerator is assembled into 2 sections at the equipment manufacturer, and each section is equipped with 4 temporary supports, separated by 8m. The volumetric weight of each section is shown in Table 1:

[0036] Table 1:

[0037] serial number Part Name quantity Dimensions (mm) length × width × height Design net weight (t) Manufacturing weight (t) Hoisting load t (take 1.1 times the dynamic load factor) 1 Deaerator Section I 1 ～25396×5080×5975 ～119.6 ～132.7 ～145.97 2 Deaerator Stage II 1 ～24796×5080×5975 ～109 ～119.9 ～131.89

[0038] The ADG system deaerator is located on the 28.2-meter floor of the conventional island plant. It is divided into two sections of cylinder during hoisting. The weight of the heaviest section of ...

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Abstract

The invention discloses a deaerator assembling method, which comprises the following steps of: (1) laying hauling tracks on a deaerator platform; (2) sequentially and respectively lifting two sections of deaerator cylinder bodies onto the tracks; (3) hauling the deaerator cylinder bodies to an assembling position; (4) jacking up the deaerator cylinder bodies, assembling permanent supports and then assembling the deaerator cylinder bodies on the permanent supports; and (5) combining the two sections of deaerator cylinder bodies into a whole. The assembling process of the invention is simpler than that of the prior art. If the preparation work is ready, the deaerator can be lifted and hauled to the assembling position in two days. Therefore, the method has the advantages of greatly shortening the assembling time, at least shortening the construction period by 1.5 months from the original construction period and saving investment, time, manpower and material resources.

Description

technical field [0001] The invention relates to a method for installing nuclear power plant equipment, in particular to a method for installing a deaerator. Background technique [0002] The deaerator hoisting scheme of the Ling Ao Phase II nuclear power plant is that the deaerator is divided into four sections, and the four-section cylinder is dragged to the bottom of the lifting beam in the auxiliary room in the order of four, three, two, and one, and is lifted by the hoist-pulley block lifting mechanism. Lift the cylinder horizontally from zero meter to the oxygen removal layer, rotate it 90°, switch the lifting point of the cylinder from the lifting beam to two sets of 40-ton cat head cranes installed on the walking beam, and pull the cylinder through the hoist traction mechanism Transport it to the equipment foundation, and then use the weight mover to move it horizontally to the equipment foundation (the center of the walking beam is offset from the center line of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21D1/00C02F1/20
CPCY02E30/40Y02E30/00
Inventor 李玉涵
Owner CHINA NUCLEAR POWER DESIGN COMPANY
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