Background technique
Feed gas system is one of the composition system of International Thermonuclear test reactor (ITER), and gas supply collection conduits are gas
One main component of body charging system, it is responsible for required gas being transported to specified gas valve case from gas source factory.For
Gas collection conduits mainly by the air shooter of six roots of sensation different tube diameters (conveying different gas respectively), a center evacuated tube and
A piece external pipe that contains forms.
Traditional conduit support is only able to satisfy the support needs of general single-layer pipeline, and most of is all outer support
Based on form, the available pipe inside support member of compound pipeline complex pipeline is seldom, in recent years with the hair of chemical industry, petroleum industry and nuclear industry
Exhibition, especially for system safety and the requirement of environmental protection, compound pipeline complex pipeline has increasingly been taken seriously and has widely adopted
With.Currently, compound pipeline complex pipeline inner support member is broadly divided into constraint support and two kinds of guide support, contain in structure only for bilayer
Pipeline, traditional inner support component overwhelming majority add the structure type of an outer tube both for an inner tube;There are no this seven
Root inner tube adds the application of an outer endorser pipeline.The staff cultivation structural member or guide frame that conventional composite pipe inside support member uses
The needs of the case where part, structure can only meet single inner tube or less inner tube, this class formation are unable to satisfy seven inner tubes
The demand of complex composite pipeline is even more to be difficult to multiple gases, the especially requirement of special gas (such as: deuterium, tritium) is conveyed simultaneously
Meet;It is important that none special deformation absorption region for pipeline deformation, generally require in practical application by two
The combination of seed type inner support member reaches the demand for absorbing deformation by extending free length of pipe section.What this method needed
Inner support form is more and support arrangement needs cumbersome adjustment;Free pipeline section is too long to make overall structure stability again
At larger impact.
Summary of the invention
The object of the present invention is to provide a kind of compound pipeline complex pipeline inner support components, it solves more root canal roads and collects in a packet
The supporting elements problem such as limit and pipeline deformation absorption while holding more inner tubes in the compound pipeline complex pipeline system in pipe.
The invention is realized in this way a kind of compound pipeline complex pipeline inner support component, it includes supportive body, inside supportive body
Radial to be connected with multiple casings, casing is connect with center sleeve by connector.
The center sleeve and casing is "convex" shaped step cyclic structure.
It is an advantage of the invention that making full use of the space inside compound pipeline complex pipeline and pipeline interstitial structure, containing inside pipe
It on confined space position, is reasonably laid out, avoids the welding operation of seven internal air ducts using pipeline gap
Interference region allows more internal pipelines to form a stabilization by the limit and outer endorser pipeline of this inner support component
Overall structure component;The use of this inner support component, meets the limit demand in inner multi-pipe road, while being set by uniqueness
The "convex" shaped step cyclic structure of meter forms the absorption region of multiple inner tube deformation, has ensured in heat, the integrated loads such as earthquake
In the case of pipeline deformation demand, can effective extraction duct deformation, while meeting the limit of internal pipeline well again
Position and Structural strength calls.The application of this inner supporting structure component has reached what two kinds of inner support members of original needs can be only achieved
Effect, but also the installation requirements of more inner tubes can be met simultaneously.Stainless steel material (304 or 316) main body and oxygen-free copper
The combination of "convex" shaped step cyclic structure, so that the compound pipeline complex pipeline inner support component of the low gassed materials of this all-metal is gone back simultaneously
Meet the needs under high vacuum and special gas environment.By the use of reasonable structure and material, avoid in structure
" locking " phenomenon, control the deflation of material, meet the demand of vacuum;Especially "convex" shaped circular step structure, it is full
The demand that foot pipeline deformation absorbs, and meet the limit requirement of pipeline, enormously simplify the peace of complex composite pipe-line system
Dress and maintenance process.
Specific embodiment
It describes in detail with reference to the accompanying drawings and examples to the present invention:
As illustrated in fig. 1 and 2, a kind of compound pipeline complex pipeline inner support component it include supportive body 1,1 inner radiation of supportive body
Shape is connected with multiple casings 4, and casing 4 is connect with center sleeve 3 by connector, wherein center sleeve 3 and casing 4 are
"convex" shaped step cyclic structure 2.
Material is stainless steel (304 or 316) in the present invention, but not limited to this in use.The size of supportive body and
Size need to match with the pipe diameter of compound pipeline complex pipeline system, and thickness, which needs to meet, will not be inverted or be not susceptible to offset
Situation, interface width can be reasonably adjusted according to requiring to give;Application on this component, the outer annular of supportive body with
Contain pipe internal surface contact (there are certain fit tolerances), sleeve portion and oxygen-free copper "convex" shaped step cyclic structure in outside
Base portion welding.
"convex" shaped step cyclic structure 2, material is oxygen-free copper in the present invention, but not limited to this in use, totally 7
It is a, 7 are not limited in, base portion and supportive body (as shown in figure 1 1) are welded, the top of "convex" shaped step cyclic structure
Portion is contacted with inner tube, and the absorption region of stress and deformation is integrally formed;The corresponding "convex" shaped step ring-type knot of a piece inner tube
Structure.
The present invention changes the restraining structure of pipe inside support component, combines the function of staff cultivation and guiding performance support.
By oxygen-free copper "convex" shaped step cyclic structure, while the demand of more pipeline deformations absorption is met, and meet more
The limit requirement of internal pipeline;The use of low gassed materials (stainless steel and oxygen-free copper) meets the demand of high vacuum;Whole branch
The radial design of support main body ensure that structure has good strength and stability.More inner tubes of corresponding different tube diameters, at this
It is only needed in invention using less change in size and adjustment, so that it may meet demand.
Compound pipeline complex pipeline inner support component overall structure is as shown in Figure 1.The material of supportive body 1 is 304 or 316 stainless steels
(but not limited to this), the material of "convex" shaped step cyclic structure 2 are oxygen-free copper, not limited to this in use."convex" shaped platform
Rank cyclic structure needs and used internal pipeline matches.Its base portion and supportive body 1 weld, "convex" shaped step ring
The top of shape structure is contacted with inner tube, forms the absorption region of stress and deformation;The corresponding "convex" shaped step of a piece inner tube
Cyclic structure.In technique, entire component needs chamfering and polishing treatment.Compound pipeline complex pipeline inner support component assembly of the invention is suitable
Sequence is sequence from the inside to the outside, the specific steps are as follows:
Step 1: the centre that the "convex" shaped step cyclic structure 2 in centre is placed in supportive body 1 is biggish
On inner tube lantern ring, wherein 2 base portion and 1 lantern ring inside two sides welding (spot welding);
Step 2: the same manner successively welds the "convex" shaped step cyclic structure 2 on peripheral corresponding multiple inner tube lantern rings
It is connected to position, assembly finishes.
Corresponding each section main function:
A) supportive body 1, with it is external contain the outer annular that inside pipe wall is in contact, radial inward connected support structure with
And the all-metal structure part of the lantern ring composition of multiple corresponding different-diameter inner tubes, in the present invention supportive body effect are to guarantee knot
Structure intensity and play the role of fixed pedestal, meets the limit requirement of more internal pipelines;
B) "convex" shaped step cyclic structure 2, base portion and supportive body (as shown in figure 1 1) are welded, "convex" shaped step
The top of cyclic structure is contacted with inner tube, and the corresponding "convex" shaped step cyclic structure of an inner tube forms stress and deformation
Absorption region;Meet the demand of pipeline guiding and deformation absorption.Present invention is mainly applied to nuclear power, fusion research necks
Domain;Aerospace field;Chemical industry, petroleum, natural gas compound pipeline complex pipeline system.
Application through the invention is greatly facilitated instead of the original function of needing two kinds of inner support components to be just able to achieve
The installation and maintenance of the compound pipeline complex pipeline system of this kind of complexity.The present invention is substantially the restraining structure for changing inner support component,
Combine the function of staff cultivation and guiding performance support.By oxygen-free copper "convex" shaped step cyclic structure, that is, meet pipeline shape
Become the demand absorbed, and meets the limit requirement of internal pipeline.The present invention is for nuclear industry, aerospace and chemical pipeline
Etc. industries can be widely applied.