CN203624811U

CN203624811U - Lifting appliance for forging main AP1000 nuclear power pipeline

Info

Publication number: CN203624811U
Application number: CN201320838017.5U
Authority: CN
Inventors: 龚岩; 吕宏伟; 扎世利; 高扬
Original assignee: Angang Heavy Machinery Co Ltd
Current assignee: Angang Heavy Machinery Co Ltd
Priority date: 2013-12-17
Filing date: 2013-12-17
Publication date: 2014-06-04
Anticipated expiration: 2023-12-17

Abstract

The utility model relates to the field of lifting equipment, and in particular relates to a lifting appliance for forging a main AP1000 nuclear power pipeline. The lifting appliance is characterized by comprising a lifting beam, two connecting plates and a profiling lifting hook, wherein limiting toothed plates are symmetrically arranged at the tops of two ends of the lifting beam; the profiling lifting hook is hung below the middle of the lifting beam through a chain; the two connecting plates are symmetrically hung below the limiting toothed plates at the two ends of the lifting beam respectively through chains; the connecting plates are in arc structures and are formed with holes in two ends; the lengths of the connecting plates are 0.75-0.8 of perimeter of the pipeline on a lifting part; traction steel wires are respectively arranged on two sides of the connecting plates and a hook body of the profiling lifting hook. 6-10 through slots perpendicular to the length direction are formed in the top of the limiting toothed plates in the length direction. Compared with the prior art, the lifting appliance disclosed by the utility model has the advantages of being applicable to solid solution stages of cold forging and heat forging of the main AP1000 nuclear power pipeline, and can control the duration from opening a furnace door to immersing a workpiece in water within 3min; the lifting appliance can meet technological requirements of all the pipelines on surface quality and deformation.

Description

Forge the suspender of AP1000 main nuclear power pipeline

Technical field

The utility model relates to hanging device field, relates in particular to the suspender of a kind of AP1000 of forging main nuclear power pipeline in cold section and hot arc solution heat treatment process.

Background technology

Forge AP1000 main nuclear power pipeline and be first production in the world, cold section that wherein forges AP1000 main nuclear power pipeline is irregular pipe fitting with hot arc, surface strength under the condition of high temperature is very low, the lifting position of profiling tongs is difficult to be controlled at predetermined center of gravity, pipeline is laid particular stress on, cause the local serious indentation that occurs, cause pipeline to be scrapped.Technology for Heating Processing requires heat treatment fire door to open to whole handling of pipe fitting to submerge in water and must be controlled in 3 minutes in addition, and the time is very short, requires supporting suspender to mount rapidly and handling, and can not reduce the surface quality of pipeline.Existing suspender cannot meet that the heat treatment of AP1000 main nuclear power pipeline is relevant to be required: 1) high temperature is come out of the stove to forging entirety and submerged in water in 3 minutes; 2) hot stage main pipeline does not allow and the metallic contact of other material; 3) consider unpredictable problem on deformation, any position of main pipeline, has not allowed any cut, causes surplus deficiency to prevent because be out of shape.

Summary of the invention

The purpose of this utility model is to provide a kind of suspender of the AP1000 of forging main nuclear power pipeline, for forging the requirement to handling in AP1000 main nuclear power pipeline solution heat treatment process, reach and in heat treatment process, improve the pipeline speed of coming out of the stove, and strictly control pipeline surface quality and deflection object.

For achieving the above object, the utility model is achieved through the following technical solutions:

Forge the suspender of AP1000 main nuclear power pipeline, comprise hanging beam, yoke plate and profiling suspension hook, top at the two ends of hanging beam is arranged with spacing tooth plate, and profiling suspension hook is hung below the middle part of hanging beam by chain, two yoke plates respectively by the symmetrical hanging of chain below the spacing tooth plate at hanging beam two ends; Described yoke plate is that arc and two ends are porose, the length of yoke plate be lifting place pipeline girth 0.75～0.8, on the coupler body of yoke plate both sides and profiling suspension hook, traction steel wire is installed respectively.The top of described spacing tooth plate is provided with 6～10 grooves perpendicular to its length direction along its length.

Compared with prior art, the beneficial effects of the utility model are:

The utility model method is applicable to the solid solution stage of cold section of AP1000 nuclear power nuclear station main pipeline and hot arc, simple in structure, handled easily, ensure that entering the water time from oven door opening to workpiece is no more than 3 minutes, can meet the technological requirement of all pipe surface quality and deflection, the utility model can be used as the operating standard of nuclear power forging steel pipe solution heat treatment and promotes.

Brief description of the drawings

Fig. 1 is the utility model suspender example structure schematic diagram.

In figure: the spacing tooth plate 5-of 1-hanging beam 2-yoke plate 3-profiling suspension hook 4-chain 6-groove 7-traction steel wire

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.

See Fig. 1, it is the suspender example structure schematic diagram that the utility model forges AP1000 main nuclear power pipeline, comprise hanging beam 1, yoke plate 2 and profiling suspension hook 3, top at the two ends of hanging beam 1 is arranged with spacing tooth plate 4, profiling suspension hook 3 is hung below the middle part of hanging beam 1 by chain 5, and two yoke plates 2 are hung below the spacing tooth plate 4 at hanging beam 1 two ends by chain 5 is symmetrical respectively; Yoke plate 2 is that arc and two ends are porose, and the length of yoke plate 2 is advisable with 0.75～0.8 of the girth of lifting place pipeline.On the coupler body of yoke plate 2 both sides and profiling suspension hook 3, traction steel wire 7 is installed respectively.The top of spacing tooth plate 4 is provided with 6～10 grooves 6 perpendicular to its length direction along its length, and spacing for to yoke plate 2 avoided transitional slide.

When the utility model suspender is used for forging the quick handling of AP1000 main nuclear power pipeline, in the time that Nuclear piping carries out solution treatment, concrete handling is carried out in the steps below:

1) before shove charge, according to the concrete size of pipeline, shape and the length of design hanging beam 1, chain sling 5 length of predetermined yoke plate and the concrete hanging position of profiling suspension hook;

2) profiling suspension hook 3 and both sides yoke plate 2 and the contact site of pipeline are used with pipeline and covered with the sheet steel of material, while avoiding coming out of the stove, main nuclear power pipeline directly contacts with suspension hook, yoke plate;

3) on the coupler body of yoke plate 2 both sides and profiling suspension hook 3, traction steel wire 7 is installed respectively, determine the personnel positions that operates traction steel wire while coming out of the stove simultaneously, the object that installs traction steel wire additional is yoke plate and profiling suspension hook can be hung over rapidly on pipeline in the time coming out of the stove, and can adjust comparatively accurately the particular location of hanging simultaneously;

4) after shove charge, first pipeline is lifted by crane in advance, according to pre-lifting result, determine overhead traveling crane and spreader position, traction steel wire operator erect-position, each post personnel all prepare at assigned address;

5) while coming out of the stove, each post personnel, by predetermined scheme operation, make pipeline come out of the stove by predetermined scheme fast hoisting and proceed in pond in 3 minutes, complete solution treatment, have finally ensured that pipeline comes out of the stove rapidly and ensure surface quality and deflection.

Claims

1. forge the suspender of AP1000 main nuclear power pipeline, it is characterized in that, comprise hanging beam, yoke plate and profiling suspension hook, top at the two ends of hanging beam is arranged with spacing tooth plate, profiling suspension hook is hung below the middle part of hanging beam by chain, and two yoke plates are hung below the spacing tooth plate at hanging beam two ends by chain is symmetrical respectively; Described yoke plate is that arc and two ends are porose, the length of yoke plate be lifting place pipeline girth 0.75～0.8, on the coupler body of yoke plate both sides and profiling suspension hook, traction steel wire is installed respectively.

2. the suspender of forging AP1000 main nuclear power pipeline according to claim 1, is characterized in that, the top of described spacing tooth plate is provided with 6～10 grooves perpendicular to its length direction along its length.