CN102605952A - Construction method for shielding cooling system and steel lining wall of high temperature gas cooled reactor - Google Patents

Construction method for shielding cooling system and steel lining wall of high temperature gas cooled reactor Download PDF

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Publication number
CN102605952A
CN102605952A CN2012100489574A CN201210048957A CN102605952A CN 102605952 A CN102605952 A CN 102605952A CN 2012100489574 A CN2012100489574 A CN 2012100489574A CN 201210048957 A CN201210048957 A CN 201210048957A CN 102605952 A CN102605952 A CN 102605952A
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China
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steel lining
construction
module
temperature gas
cabin
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CN2012100489574A
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Chinese (zh)
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CN102605952B (en
Inventor
陈景
沈健
陈岩
毛甲鑫
杨国康
张玮
孙运轮
张盛渝
高旭
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中核能源科技有限公司
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Abstract

The invention relates to a construction method for a shielding cooling system and a steel lining wall of a high temperature gas cooled reactor, which belongs to the technical field of reactor structures. The method includes: arranging a steel lining according to design requirements and welding cooling water pipes to the inner surfaces of the steel lining to form a combined structure module, hoisting the module to the position of a primary loop cabin of the high temperature gas cooled reactor, sequentially binding inner main reinforcement bars, auxiliary reinforcement bars and outer main reinforcement bars, erecting a constructional outer mould plate, concreting between the steel lining and the constructional outer mould plate to form a lower-layer combined structural wall module, hoisting an upper-layer module on the lower-layer combined structural wall module, and cycling so to form the wall of the primary loop cabin of the high temperature gas cooled reactor. Using the construction method can shorten time of constructional critical paths, reduce cross workload on a construction site, relieve work intensity on the construction site and guarantee accurate execution of construction schedule while improve construction quality and shorten construction period.

Description

The construction method of high temperature gas-cooled nuclear reactor shield cooling system and steel lining body of wall
Technical field
The present invention relates to the construction method of a kind of high temperature gas-cooled nuclear reactor shield cooling system and steel lining body of wall, belong to the nuclear reactor structure technical field.
Background technology
Cabin, high temperature gas-cooled nuclear reactor one loop is the type of anti-low pressure ventilation containment that contains reactor-loop system three big capital equipments (reactor pressure vessel, steam generator shell and hot gas conduit), is arranged in the nuclear island reactor building.Reactor shielding cooling system and cooling water pipe dispersed placement more by quantity formed; It is inner that these water pipes are arranged in cabin, loop body of wall; Its installation is usually located on the critical path of whole project engineering construction, and the construction progress in cabin, a loop directly influences the engineering-built cycle.Traditional construction sequence is:
(1) according to the size and the requirement of strength design in cabin, high temperature gas-cooled nuclear reactor one loop, main reinforcement, outer main reinforcement and auxiliary reinforcement in the colligation are arranged main reinforcement and are effluxed main reinforcement in forming;
(2) side of main reinforcement is provided with the reactor shielding cooling water pipe in above-mentioned, forms the reactor shielding cooling water system;
(3) effluxing the arranged outside construction exterior sheathing of main reinforcement, the construction inner formword is set in the inboard of reactor shielding cooling water system;
(4) concreting between construction exterior sheathing and construction inner formword removes construction inner formword and construction exterior sheathing, forms cabin, high temperature gas-cooled nuclear reactor one loop body of wall.The wall body structure that forms is as shown in Figure 1, among Fig. 1, and the 1st, efflux main reinforcement, the 2nd, construction exterior sheathing, the 3rd, auxiliary reinforcement, the 4th, construction inner formword, the 5th, shielding cooling water pipe, the 7th, interior row's main reinforcement.The tradition construction sequence must be accomplished in the job site in cabin, nuclear reactor one loop.
Traditional job practices makes nuclear power plant's job site workload big; Civil engineering is more with the installation cross-operation; Field operation narrow space and be mostly work high above the ground, such building method are if be applied to commercial nuclear power station, and the loose mail of up to a hundred cooling water pipes is installed will bring huge amount of high-altitude operation; The civil engineering installation work in cabin, one loop will take long critical path time, and its economy, safety and quality guarantee require to be in disadvantageous competitive position.
Summary of the invention
The objective of the invention is to propose the construction method of a kind of high temperature gas-cooled nuclear reactor shield cooling system and steel lining body of wall; To reduce the difficulty of cabin, HTGR nuclear power plant one loop on-the-spot civil engineering installation operation; And, improve the economy of high-temperature gas-cooled reactor nuclear power engineering project through shortening the critical path of nuclear power plant's construction.
The high temperature gas-cooled nuclear reactor shield cooling system that the present invention proposes and the construction method of steel lining body of wall comprise following each step:
(1) according to the size and the requirement of strength design in cabin, high temperature gas-cooled nuclear reactor one loop, the cooling water pipe of forming shield cooling system is welded on the inner surface of steel lining, forms the combining structure module of steel lining and cooling water pipe;
(2) the combinations thereof construction module is lifted position, cabin, high temperature gas-cooled nuclear reactor one loop; Size and requirement of strength design according to cabin, high temperature gas-cooled nuclear reactor one loop; Main reinforcement, outer main reinforcement and auxiliary reinforcement in the colligation of the outside of steel lining; Arrange main reinforcement in forming and efflux main reinforcement, auxiliary reinforcement is distributed in interior row's main reinforcement and effluxes between the main reinforcement;
(3) effluxing the arranged outside construction exterior sheathing of main reinforcement, form wall skeleton;
(4) concreting between construction exterior sheathing and steel lining removes the construction exterior sheathing, forms first steel lining wall body module in cabin, high temperature gas-cooled nuclear reactor one loop;
(5) second combining structure module that forms by above-mentioned steps (1) of lifting on first steel lining wall body module; Repeating step (2) and (3); And the corresponding steel lining of combining structure situated, the shielding cooling water pipe that first steel lining wall body module and second are formed by above-mentioned steps (1) welded; At last at the concreting between exterior sheathing and the steel lining of constructing; Remove the construction exterior sheathing, form second steel lining wall body module in cabin, high temperature gas-cooled nuclear reactor one loop;
(6) repeating step (5) forms the high temperature gas-cooled nuclear reactor shield cooling system and the steel lining body of wall that are made up of a plurality of steel lining wall body modules.
The high temperature gas-cooled nuclear reactor shield cooling system that the present invention proposes and the construction method of steel lining body of wall, the combining structure module of steel lining wherein and cooling water pipe can be carried out prefabricated near the precasting yard prefabricated factory or the scene.In the prefabricated process of combining structure module; Can carry out the concreting work in this cabin, combining structure module bottom; Treat this combining structure module making completion, cabin, bottom concrete has been built and has been finished, and utilizes large-scale crane that construction module is made up on the upper strata and hangs in construction area; And fix with substructure, steel lining and the shielding cooling water pipe etc. of combining structure module weld up and down to utilize welding method.Steel lining replaces the construction inner formword of traditional reactor cabin body of wall, and shield cooling system has moved on to the body of wall inboard by body of wall inside, directly concreting between steel lining and construction exterior sheathing.In the concreting process, simultaneously in the next combining structure module of precasting yard made.Such building method; Help reducing that the shielding cooling water pipe is installed and inner module installs the cross-operation of installing in the process with civil engineering, scaffold needn't be set up in body of wall inside, cabin, a loop, leaves narrow and small construction operation face for civil engineering personnel use; And reduced the work high above the ground of some; Personnel amount when having reduced labour peak, nuclear power plant job site can shorten the critical path of nuclear power construction project, improves construction quality and also guarantees construction safety.The steel lining that makes up with the inventive method replaces traditional construction inner formword; Can shorten the time on the construction critical path; Reduce the cross-operation amount of job site, reduce the operation closeness of job site, guarantee the accurate execution of construction schedule; Rationally utilize place and time, can reach the effect that improves construction quality, shortens the construction period simultaneously.
Description of drawings
Fig. 1 is the structural representation of existing cabin, high temperature gas-cooled nuclear reactor one loop body of wall.
Fig. 2 is with the high temperature gas-cooled nuclear reactor shield cooling system of the inventive method construction and the structural representation of steel lining body of wall.
Among Fig. 1 and Fig. 2, the 1st, efflux main reinforcement, the 2nd, construction exterior sheathing, the 3rd, auxiliary reinforcement, the 4th, construction inner formword, the 5th, shielding cooling water pipe, the 6th, steel lining, the 7th, interior row's main reinforcement.
The specific embodiment
The high temperature gas-cooled nuclear reactor shield cooling system that the present invention proposes and the construction method of steel lining body of wall, the wall body structure sketch map of structure is as shown in Figure 2, and construction method comprises following each step:
(1) according to the size and the requirement of strength design in cabin, high temperature gas-cooled nuclear reactor one loop, the cooling water pipe of forming shield cooling system is welded on the inner surface of steel lining, forms the combining structure module of steel lining and cooling water pipe;
(2) the combinations thereof construction module is lifted position, cabin, high temperature gas-cooled nuclear reactor one loop; Size and requirement of strength design according to cabin, high temperature gas-cooled nuclear reactor one loop; Main reinforcement, outer main reinforcement and auxiliary reinforcement in the colligation of the outside of steel lining; Arrange main reinforcement in forming and efflux main reinforcement, auxiliary reinforcement is distributed in interior row's main reinforcement and effluxes between the main reinforcement;
(3) effluxing the arranged outside construction exterior sheathing of main reinforcement, form wall skeleton;
(4) concreting between construction exterior sheathing and steel lining removes the construction exterior sheathing, forms first steel lining wall body module in cabin, high temperature gas-cooled nuclear reactor one loop;
(5) second combining structure module that forms by above-mentioned steps (1) of lifting on first steel lining wall body module; Repeating step (2) and (3); And the corresponding steel lining of combining structure situated, the shielding cooling water pipe that first steel lining wall body module and second are formed by above-mentioned steps (1) welded; At last at the concreting between exterior sheathing and the steel lining of constructing; Remove the construction exterior sheathing, form second steel lining wall body module in cabin, high temperature gas-cooled nuclear reactor one loop;
(6) repeating step (5) forms the high temperature gas-cooled nuclear reactor shield cooling system and the steel lining body of wall that are made up of a plurality of steel lining wall body modules.
The high temperature gas-cooled nuclear reactor shield cooling system that the present invention proposes and the construction method of steel lining body of wall; The shielding cooling water pipe that disperses in the cabin, HTGR nuclear power plant one loop is integrated with the steel lining that serves as the concreting inner formword with being arranged on, and constitutes a combining structure module; Then after cabin, high temperature gas-cooled nuclear reactor one loop bottom raft plate or lower module construction completion; With crane the combining structure module is hung in construction area; And this combining structure module lower end and cabin, loop bottom raft plate or lower module combined with fixing whole module; Again corresponding steel lining in position and shielding cooling water pipe are welded, at last concreting between steel lining and construction exterior sheathing.Steel lining in the combining structure module has replaced traditional construction inner formword, and this combining structure module will be present in the cabin, a loop of target nuclear power plant as permanent structure.
The high temperature gas-cooled nuclear reactor shield cooling system that the present invention proposes and the construction method of steel lining body of wall; Architectural feature according to shield cooling system; Reactor cabin and evaporimeter cabin are decomposed into zones of different, adopt modular construction then, steel lining is set in body of wall inboard, cabin, a loop forms a combined frame structure; Prevent to shield cooling water pipe and in hoisting process, deform and misplace, and satisfy the seismic design requirement of concrete wall.
In the high temperature gas-cooled nuclear reactor shield cooling system and steel lining body of wall that the inventive method makes up; Used steel lining can be a general steel plate; It is inboard to be arranged on cabin, loop body of wall; Its effect is the structural strength that improves concrete wall, the locus of fixed mask cooling water pipe, and the cooling capacity of enhancing high temperature gas-cooled nuclear reactor shield cooling system.The shielding cooling water pipe is welded on the steel lining inner surface among the present invention, also can be welded on the steel lining external surface according to the construction needs.

Claims (1)

1. the construction method of high temperature gas-cooled nuclear reactor shield cooling system and steel lining body of wall is characterized in that this method comprises following each step:
(1) according to the size and the requirement of strength design in cabin, high temperature gas-cooled nuclear reactor one loop, the cooling water pipe of forming shield cooling system is welded on the inner surface of steel lining, forms the combining structure module of steel lining and cooling water pipe;
(2) the combinations thereof construction module is lifted position, cabin, high temperature gas-cooled nuclear reactor one loop; Size and requirement of strength design according to cabin, high temperature gas-cooled nuclear reactor one loop; Main reinforcement, outer main reinforcement and auxiliary reinforcement in the colligation of the outside of steel lining; Arrange main reinforcement in forming and efflux main reinforcement, auxiliary reinforcement is distributed in interior row's main reinforcement and effluxes between the main reinforcement;
(3) effluxing the arranged outside construction exterior sheathing of main reinforcement, form wall skeleton;
(4) concreting between construction exterior sheathing and steel lining removes the construction exterior sheathing, forms first steel lining wall body module in cabin, high temperature gas-cooled nuclear reactor one loop;
(5) second combining structure module that forms by above-mentioned steps (1) of lifting on first steel lining wall body module; Repeating step (2) and (3); And the corresponding steel lining of combining structure situated, the shielding cooling water pipe that first steel lining wall body module and second are formed by above-mentioned steps (1) welded; At last at the concreting between exterior sheathing and the steel lining of constructing; Remove the construction exterior sheathing, form second steel lining wall body module in cabin, high temperature gas-cooled nuclear reactor one loop;
(6) repeating step (5) forms the high temperature gas-cooled nuclear reactor shield cooling system and the steel lining body of wall that are made up of a plurality of steel lining wall body modules.
CN 201210048957 2012-02-28 2012-02-28 Construction method for shielding cooling system and steel lining wall of high temperature gas cooled reactor CN102605952B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790384A (en) * 2014-02-21 2014-05-14 国核工程有限公司 Modular binding method for steel bars of main steam pipeline penetration pieces of nuclear island auxiliary plant

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CN1773630A (en) * 1998-05-25 2006-05-17 东芝株式会社 Reactor-containment vessel and its building method
CN101424106A (en) * 2008-12-02 2009-05-06 华南理工大学 Steel sheet regeneration mixed wall and construction method thereof
WO2010013858A1 (en) * 2008-07-30 2010-02-04 Korea Hydro & Nuclear Power Co., Ltd Steel plate structure and steel plate concrete wall
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CN1773630A (en) * 1998-05-25 2006-05-17 东芝株式会社 Reactor-containment vessel and its building method
JP2002013134A (en) * 2000-06-28 2002-01-18 Sumitomo Metal Ind Ltd Composite construction wall body and component member of the wall body
WO2010013858A1 (en) * 2008-07-30 2010-02-04 Korea Hydro & Nuclear Power Co., Ltd Steel plate structure and steel plate concrete wall
CN101424106A (en) * 2008-12-02 2009-05-06 华南理工大学 Steel sheet regeneration mixed wall and construction method thereof
CN102127941A (en) * 2010-12-10 2011-07-20 清华大学 Steel tube concrete column-double-layer steel plate combined shear wall and construction method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790384A (en) * 2014-02-21 2014-05-14 国核工程有限公司 Modular binding method for steel bars of main steam pipeline penetration pieces of nuclear island auxiliary plant

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