CN106270974A - Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant - Google Patents
Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant Download PDFInfo
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- CN106270974A CN106270974A CN201610755987.7A CN201610755987A CN106270974A CN 106270974 A CN106270974 A CN 106270974A CN 201610755987 A CN201610755987 A CN 201610755987A CN 106270974 A CN106270974 A CN 106270974A
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- welding
- urceolus
- gusset
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
- B23K9/232—Arc welding or cutting taking account of the properties of the materials to be welded of different metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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Abstract
The invention discloses a kind of maximum deformation quantity that can ensure that base plate and control in the HTGR Nuclear Power Plant of≤9.6mm heap core shell base welding method under metal stack inner member, at inner core, after urceolus and base plate have welded, after 15 inner reinforced plates are distributed between inner core and urceolus, required welding position is preheated until more than 205 DEG C, to between urceolus and inner reinforced plate after having preheated, tack welding is carried out between inner core and inner reinforced plate, use multi-layer multi-pass welding method afterwards, first carry out the welding between inner reinforced plate and urceolus, after completing, inner reinforced plate and base plate are welded, weld outer gusset afterwards.The invention have the advantage that and utilize said method, it is ensured that the maximum deformation quantity of base plate controls in≤9.6mm, firm welding, meet the welding quality requirement in terms of nuclear power, improve the service life of base.
Description
Technical field
The present invention relates in a kind of HTGR Nuclear Power Plant heap core shell base welding method under metal stack inner member.
Background technology
Along with the proposition of " forth generation Advanced Nuclear Energy Systems " concept, HTGR is gradually with its distinctive safety, use
The features such as miniaturization that way extensively and has along with the proposition of modular high temperature reactor concept, small investment, construction period are short win
The favor of more and more knowledgeable people.
HTGR is the advanced reactor with the 4th generation of technology such as nuclear energy system security feature, and it is international nuclear energy field the
One of six kinds of alternative heap-type in four generation nuclear power systems, and be the forth generation core that uniquely can realize commercialized running before the year two thousand twenty
Can system.Main nuclear power the most in the world is all used for generating and hydrogen manufacturing in actively development HTGR technology.
China, in the technical foundation of the 10MW high-temperature gas-solid two-phase flow built up, aims at a new generation's nuclear energy skill in the world
The developing direction of art, the experience of foreign HTGR, by autonomous research and development, before and after striving 2017, build up electricity
Power is 20MW, has the HTGR Nuclear Power Plant demonstration project of independent intellectual property right (hereinafter referred to as HTR-20).
HTR-20 metal stack inner member heap core shell is Shandong, Huaneng Group Shidao Bay nuclear power plant HTGR Nuclear Power Plant demonstration work
The important component part of journey, including reactor core shell component and other associated components.
High temperature nuclear reactor heap core shell is a thin wall type welding straight cylinder structure, and there is individual base its lower end.This base is by Tsing-Hua University
Nuclear energy technology design and research institute of university (unique design and research institute specifying " the high temperature gas-cooled heaping equipment of forth generation nuclear power " of country) sets
Meter, market does not has the base of second this specification.In order to increase the rigidity of population structure, cylinder upper limb part has the upper of thickening
Flange section, and Ze Youxia thick section, the bottom cylinder of cylinder.High temperature nuclear reactor heap core shell overall size about φ 5534 millimeters × 20 meters, gross weight
About 313 tons, base plate thickness 135 millimeters is the maximum gauge on whole base, have seven roll cylinder (thickness have 40 millimeters,
90 millimeters of two kinds of specifications).Location-plate 1 piece, size φ 5160mm × δ 115mm, weight 18.8T；Pressing plate 10 pieces, in size
5160mm × 665mm, every piece of weight 10.6T.
The erection welding of base is the key of whole device fabrication.
As depicted in figs. 1 and 2, the structure comparison of base is special, is a complicated welding structural element, by base plate 3, interior 1,
Urceolus 2, inner reinforced plate 4, outer gusset 20, internal ring 21 and outer shroud 22 and roller pad 23 form.Having a piece in the middle of base plate, thickness is
135 millimeters, a diameter of 5460 millimeters, the large opening of base plate central authorities is welded with inner core, and welds mutually with gusset, also welds on gusset and base plate
Having urceolus, the blank dimension of inner core is internal diameter φ 1170mm, the reel of thickness δ 65mm, urceolus a size of internal diameter φ 3900mm, thick
The reel of degree δ 50mm.Be welded with 15 radial inside and outside gussets in base plate bottom, gusset thickness is 50 millimeters.Inner/outer tube and muscle
Plate height is 1022 millimeters.The bottom of base is also welded with the inner and outer ring that thickness is δ 60mm, strengthens together with inner/outer tube and gusset
The end, is with the rigidity of seat entirety.All bevel for weldings are all completed by machining, and all weld seams are complete penetraction and fusion in welding, and detect through MT, UT
Qualified.
Base workpiece material is 12Cr2Mo1R, owing to material C r, Mo content are higher, has bigger tendency of hardenability during welding,
Welding difficulty is the biggest.The maximum deformation quantity of base plate should control at≤9.6mm, say, that controls within allowance, now
Conventional soldering method cannot ensure that the maximum deformation quantity of base plate controls at≤9.6mm.
Summary of the invention
The technical problem to be solved is: provide a kind of maximum deformation quantity that can ensure that base plate control≤
Heap core shell base welding method under metal stack inner member in the HTGR Nuclear Power Plant of 9.6mm.
For solving above-mentioned technical problem, the technical solution used in the present invention is: metal in a kind of HTGR Nuclear Power Plant
Two inner core frocks and urceolus frock are shelved on place by heap core shell base welding method under in-pile component, inner core frock and
Urceolus frock is all cylindric, the diameter of urceolus frock more than the diameter of inner core frock, then base plate is placed on inner core frock and
In urceolus frock, the center of circle of base plate is concentric with the center of circle of inner core frock, urceolus frock, after being placed on base plate by inner core welds both
Connect position and carry out preheating until more than 205 DEG C, the first preheated zone formed cover inner core and the welding region of base plate and to
Outer extension, after the first preheated zone extension, the border on inner core and base plate is respectively apart from both more than welding position 50mm,
The welding position of inner core is divided into the weldering that eight arc length of a, b, c, d, e, f, g, h are equal in a circumferential direction and in the clockwise direction
Connect region, after having preheated, inner core and base plate are carried out tack welding, inside and outside inner core, be provided with a circle inclined-plane, the inclined-plane in inner core
Forming V-arrangement inner core internal groove with backplate surface, the inclined-plane outside inner core and backplate surface form the outer groove of V-arrangement inner core, use afterwards
Multi-layer multi-pass welding method, particular order is three layers → inner core of inner core internal groove weldering outer groove welding three layers → inner core internal groove weldering the
The outer groove welding the 4th of four layers → inner core and layer 5 → inner core internal groove weldering full → the outer groove welding of inner core is full, simultaneously every layer of weldering
Time a → e → c → g → b → f → d → h the most in order；Inner core welds urceolus after having welded, and is placed on base plate by urceolus
Preheating both welding positions until more than 205 DEG C afterwards, the second preheated zone formed covers inner core and the weldering of base plate
Connecing region and outer extension, after the second preheated zone extension, the border on urceolus and base plate is respectively apart from both weld parts
Position more than 50mm, the welding position of urceolus in a circumferential direction and the most same inner core, be also divided into a, b, c, d, e,
The welding region that eight arc length of f, g, h are equal, carries out tack welding to urceolus and base plate after having preheated, is also respectively provided with inside and outside urceolus
Having a circle inclined-plane, the inclined-plane in urceolus and backplate surface to form V-arrangement urceolus internal groove, the inclined-plane outside urceolus is formed with backplate surface
The outer groove of V-arrangement urceolus, is also adopted by multi-layer multi-pass welding method afterwards, and particular order is the outer slope of urceolus internal groove three layers → urceolus of weldering
Mouth weldering three layers → urceolus internal groove welds the 4th layer of groove welding fourth outer with layer 5 → urceolus and layer 5 → urceolus internal groove weldering
The outer groove welding of full → urceolus is full, simultaneously a → e → c → g → b → f → d → h the most in order every layer of weldering when；Inner core,
After urceolus and base plate have welded, after 15 inner reinforced plates are distributed between inner core and urceolus, required welding position is carried out pre-
Heat is until more than 205 DEG C, and the 3rd preheated zone formed covers required welding region and to extending around, the 3rd preheated zone
After extension, the border on inner core, urceolus and base plate is respectively apart from required more than welding position 50mm, and the both sides of inner reinforced plate are also divided
Not being provided with inclined-plane, the inclined-plane of inner reinforced plate and inner core, urceolus, base plate form inner reinforced plate groove, respectively to urceolus after having preheated
And between inner reinforced plate, between inner core and inner reinforced plate, carry out tack welding, it is specially tack welding urceolus and inner reinforced plate the most clockwise, then
Tack welding inner core clockwise and inner reinforced plate again, two inner reinforced plate grooves between inner reinforced plate and urceolus are intended to tack welding and tack welding
Carrying out the tack welding of next inner reinforced plate and urceolus after being soldered again, two inner reinforced plate grooves between inner reinforced plate and inner core are intended to
Tack welding and tack welding carry out next inner reinforced plate and the tack welding of inner core again after completing, be also adopted by multi-layer multi-pass welding afterwards
Method, first carries out the welding between inner reinforced plate and inner core, urceolus, and particular order is clockwise to two between inner reinforced plate and urceolus
Individual inner reinforced plate groove carries out sealing weld three layers → clockwise two inner reinforced plate grooves between inner reinforced plate and inner core are carried out sealing weld three
Layer → full → clockwise between inner reinforced plate and inner core to two inner reinforced plate groove weldings between inner reinforced plate and urceolus clockwise
Two inner reinforced plate groove weldings are full, after completing weld inner reinforced plate and base plate, and particular order is for first selecting an inner reinforced plate
As starting point, i.e. first inner reinforced plate, the welding sequence of all inner reinforced plates is first inner reinforced plate → the 8th interior muscle clockwise
Plate → the 3rd inner reinforced plate → clockwise ten inner reinforced plate clockwise → the 5th inner reinforced plate → clockwise 12nd clockwise
Individual inner reinforced plate → the 7th inner reinforced plate clockwise → the 14th inner reinforced plate clockwise → second inner reinforced plate → up time clockwise
The 9th inner reinforced plate of pin → the 4th inner reinforced plate clockwise → the 11st inner reinforced plate clockwise → the 6th inner reinforced plate clockwise
→ the 13rd inner reinforced plate clockwise → the 15th inner reinforced plate clockwise, first the inner reinforced plate slope to the side of first inner reinforced plate
Mouth sealing weld three layers, then according to the welding sequence of all inner reinforced plates noted earlier and base plate is to remaining inner reinforced plate and first interior muscle
The inner reinforced plate groove sealing weld three layers of plate homonymy, inner reinforced plate groove sealing weld five layers to the opposite side of first inner reinforced plate after completing,
Then according to the welding sequence of all inner reinforced plates noted earlier and base plate is to remaining inner reinforced plate and first same opposite side of inner reinforced plate
Inner reinforced plate groove sealing weld five layers, side inner reinforced plate groove sealing weld four layers to first inner reinforced plate after completing, then according to front
The inner reinforced plate groove of remaining inner reinforced plate and first inner reinforced plate homonymy is filled out by the welding sequence of all inner reinforced plates described in face and base plate
Welding four layers, after completing, the inner reinforced plate groove sealing weld to the opposite side of first inner reinforced plate is full, then according to noted earlier all interior
Gusset and the welding sequence of base plate are full with the inner reinforced plate groove sealing weld of opposite side to remaining inner reinforced plate and first inner reinforced plate, complete
Inner reinforced plate groove sealing weld to the side of first inner reinforced plate is full afterwards, then according to all inner reinforced plates noted earlier and the weldering of base plate
Connect order full, after completing, by 15 outer gussets to the inner reinforced plate groove sealing weld of remaining inner reinforced plate and first inner reinforced plate homonymy
It is distributed between base plate and urceolus, required welding position is preheated until more than 205 DEG C, the 4th preheated zone formed
Cover required welding region and to extending around, the border distance institute respectively on urceolus and base plate after the 4th preheated zone extension
More than welding position 50mm, the both sides of outer gusset is needed also to be respectively arranged with inclined-plane, the inclined-plane of outer gusset and urceolus, base plate shape respectively
Become outer gusset groove, after having preheated, urceolus and outer gusset are carried out tack welding, be specially tack welding urceolus the most clockwise with outer
Gusset, the then outer gusset of tack welding clockwise and base plate, two outer muscle between outer gusset and urceolus, between outer gusset and base plate
Plate groove is intended to tack welding and tack welding complete after carry out the location of the outer gusset of the next one and urceolus, outer gusset and base plate again
Weldering, afterwards the most external outer gusset groove sealing weld three layers between gusset and urceolus, an outer gusset and two of urceolus
Gusset outer to the next one and urceolus sealing weld three layers again after the outer equal sealing weld of gusset groove three layers, after completing again the most externally gusset with
Outer gusset groove between urceolus fills up, and externally gusset and base plate weld afterwards, and particular order is for first selecting an outer muscle
Plate and base plate are as starting point, and i.e. first outer gusset, the welding sequence of all outer gussets is first outer gusset → clockwise the
Eight outer gusset → the 3rd the outer gusset of outer gusset → clockwise ten clockwise → the 5th outer gusset → up times clockwise
The 12nd outer gusset of pin → the 7th outer gusset clockwise → the 14th outer gusset clockwise → second outer muscle clockwise
Plate → the 9th outer gusset clockwise → the 4th outer gusset clockwise → the 11st outer gusset → clockwise 6th clockwise
Individual outer gusset → the 13rd outer gusset clockwise → the 15th outer gusset clockwise, first to the side of first outer gusset
Outer gusset groove sealing weld three layers, then according to the welding sequence of all outer gussets noted earlier and base plate is to its besides gusset and the
The outer gusset groove sealing weld three layers of one outer gusset homonymy, after completing, the outer gusset groove to the opposite side of first outer gusset is filled out
Welding five layers, then according to the welding sequence of all outer gussets noted earlier and base plate is to it, besides gusset and first outer gusset are same
The outer gusset groove sealing weld five layers of opposite side, to gusset groove sealing weld four layers outside the side of first outer gusset after completing, then
The welding sequence of the most all outer gussets and base plate is to its besides gusset and the outer gusset of first outer gusset homonymy
Groove sealing weld four layers, after completing, the outer gusset groove sealing weld to the opposite side of first outer gusset is full, then according to noted earlier
The welding sequence of all outer gussets and base plate to its besides gusset and first outer gusset with the outer gusset groove sealing weld of opposite side
Full, after completing, the outer gusset groove sealing weld to the side of first outer gusset is full, then according to all outer gussets noted earlier and
The welding sequence of base plate is full, in whole welding process to the outer gusset groove sealing weld of its besides gusset and first outer gusset homonymy
In to ensure all the time before the first preheated zone, the second preheated zone, the 3rd preheated zone and the 4th preheated zone cover
The temperature in region is more than 205 DEG C.
The when of described inner core tack welding, the weld seam of inner core tack welding is positioned at the outer groove of inner core, inner core tack welding order
For a → e → c → g → b → f → d → h, arc length M of inner core tack welding weld seam and the relation of inner core outer diameter D are M=π D/24, weldering
After complete, inner core tack welding weld seam striking and receipts arc end are polished, the cross section after the expansion of inner core tack welding weld seam after polishing
In isosceles trapezoid, the base angle of isosceles trapezoid is 23 °～35 °.
Described inner core internal groove angle is 20 °～28 °, and the outer bevel angle of inner core is than inner core internal groove angle big 2.
The when of described urceolus tack welding, the weld seam of urceolus tack welding is positioned at the outer groove of urceolus, urceolus tack welding order
For a → e → c → g → b → f → d → h, arc length N of urceolus tack welding weld seam is N=π E/24 with the relation of urceolus external diameter E, weldering
After complete, urceolus tack welding weld seam striking and receipts arc end are polished so that after the urceolus tack welding weld seam after polishing launches
Cross section is isosceles trapezoid, and the base angle of isosceles trapezoid is 23 °～35 °.
Described urceolus internal groove angle is 20 °～28 °, and the outer bevel angle of urceolus is equal with urceolus internal groove angle, urceolus
The bottom of the outer groove of internal groove and urceolus contacts and contact point is positioned at the centre position of outer barrel thickness.
The when of described inner reinforced plate and outer gusset tack welding, it is soldered and is intended to afterwards inner reinforced plate tack welding weld seam and outer gusset
The striking of tack welding weld seam and receipts arc end are polished so that inner reinforced plate tack welding weld seam and the cross section of outer gusset tack welding weld seam
In isosceles trapezoid, the base angle of isosceles trapezoid is 23 °～35 °.
Described inner reinforced plate groove and outer gusset bevel angle are 20 °～28 °.
The invention has the beneficial effects as follows: utilize said method, it is ensured that the maximum deformation quantity of base plate control≤
9.6mm, firm welding, meet the welding quality requirement in terms of nuclear power, improve the service life of base.
Accompanying drawing explanation
Fig. 1 is the top view of heap core shell base under metal stack inner member in HTGR Nuclear Power Plant of the present invention；
Fig. 2 is A-A sectional view in Fig. 1；
Fig. 3 is inner core and base plate partial section in Fig. 1；
Fig. 4 is inner core and urceolus circumference soldering regional distribution chart in Fig. 1；
Fig. 5 is urceolus and base plate partial section in Fig. 1.
In figure: 1, inner core, 2, urceolus, 3, base plate, 4, inner reinforced plate, 5, first inner reinforced plate, 6, second inner reinforced plate, 7,
Three inner reinforced plates, the 8, the 4th inner reinforced plate, the 9, the 5th inner reinforced plate, the 10, the 6th inner reinforced plate, the 11, the 7th inner reinforced plate, 12,
8th inner reinforced plate, the 13, the 9th inner reinforced plate, the 14, the tenth inner reinforced plate, the 15, the 11st inner reinforced plate, in the 16, the 12nd
Gusset, the 17, the 13rd inner reinforced plate, the 18, the 14th inner reinforced plate, the 19, the 15th inner reinforced plate, 20, outer gusset, 21, internal ring,
22, outer shroud, 23, roller pad, 24, inner core frock, 25, urceolus frock, 26, inner core internal groove, 27, the outer groove of inner core, 28, urceolus
Internal groove, 29, urceolus internal groove, 30, first outer gusset, 31, second outer gusset, the 32, the 3rd outer gusset, the 33, the 4th
Individual outer gusset, the 34, the 5th outer gusset, the 35, the 6th outer gusset, the 36, the 7th outer gusset, the 37, the 8th outer gusset, 38,
9th outer gusset, the 39, the tenth outer gusset, the 40, the 11st outer gusset, the 41, the 12nd outer gusset, the 42, the 13rd
Outer gusset, the 43, the 14th outer gusset, the 44, the 15th outer gusset.
Detailed description of the invention
Below in conjunction with the accompanying drawings, specific embodiments of the present invention are described in detail.
As depicted in figs. 1 and 2, heap core shell base under metal stack inner member in HTGR Nuclear Power Plant of the present invention
Two inner core frocks 24 and urceolus frock 25 are shelved on place by welding method, and inner core frock 24 and urceolus frock 25 are all
Cylindrical shape, base plate 3, more than the diameter of inner core frock 24, is then placed on inner core frock 24 and urceolus work by the diameter of urceolus frock 25
Filling on 25, the center of circle of base plate 3 is concentric with the center of circle of inner core frock 24, urceolus frock 25, to two after being placed on base plate 3 by inner core 1
Person welding position carries out preheating until more than 205 DEG C, and the first preheated zone formed covers inner core 1 and the weld zone of base plate 3
Territory and stretching out, the first preheated zone extend after border on inner core 1 and base plate 3 respectively apart from both welding positions
More than 50mm, the welding position of inner core 1 is divided into eight arcs of a, b, c, d, e, f, g, h in a circumferential direction and in the clockwise direction
Long equal welding region, carries out tack welding to inner core 1 and base plate 3 after having preheated, is provided with a circle oblique inside and outside inner core 1
Face, as it is shown on figure 3, the inclined-plane in inner core 1 and base plate 3 surface form V-arrangement inner core internal groove 26, the inclined-plane outside inner core 1 and base plate 3
Surface forms the outer groove 27 of V-arrangement inner core, uses multi-layer multi-pass welding method afterwards, and particular order is inner core internal groove 26 sealing weld three
Outer groove 27 sealing weld the 4th and the 5th of outer groove 27 sealing weld three layers → inner core the 4th layer → inner core of internal groove 26 sealing weld of layer → inner core
Layer → inner core internal groove 26 weldering is full → and inner core outer groove 27 weldering is full, a → e → c → g the most in order every layer of weldering when simultaneously
→ b → f → d → h-Fig. 4, such as, the when of to inner core internal groove 26 sealing weld three layers, ground floor is according to a → e → c → g → b → f
The order of → d → h, after one has enclosed, then welds the second layer, and also according to the order of a → e → c → g → b → f → d → h, one has enclosed
Cheng Hou, then weld third layer；Inner core 1 welds urceolus 2 after having welded, and after being placed on base plate 3 by urceolus 2 enters both welding positions
Row preheating is until more than 205 DEG C, and the second preheated zone formed covers inner core 1 and the welding region of base plate 3 and inside extension
Stretching, after the second preheated zone extension, the border on urceolus 2 and base plate 3 is respectively apart from both more than welding position 50mm, outward
The welding position of cylinder 2 in a circumferential direction and the most same inner core, is i.e. also divided into eight arcs of a, b, c, d, e, f, g, h
Long equal welding region, carries out tack welding to urceolus 2 and base plate 3 after having preheated, is also provided with a circle oblique inside and outside urceolus 2
Face, as it is shown in figure 5, the inclined-plane in urceolus 2 and base plate 3 surface form V-arrangement urceolus internal groove 28, the inclined-plane outside urceolus 2 and base plate 3
Surface forms the outer groove 29 of V-arrangement urceolus, is also adopted by multi-layer multi-pass welding method afterwards, and particular order is urceolus internal groove 28 sealing weld
Outer groove 29 sealing weld three layers → urceolus internal groove 28 sealing weld the 4th layer of three layers → urceolus and outer groove 29 sealing weld of layer 5 → urceolus
The weldering of 4th and layer 5 → urceolus internal groove 28 is full → and urceolus outer groove 29 weldering is full, the most simultaneously weldering every layer when
a→e→c→g→b→f→d→h；After inner core 1, urceolus 2 and base plate 3 have welded, 15 inner reinforced plates 4 are distributed on inner core
After between 1 and urceolus 2, preheating required welding position until more than 205 DEG C, the 3rd preheated zone formed covers institute
Need welding region and to extending around, the border distance respectively on inner core 1, urceolus 2 and base plate 3 after the 3rd preheated zone extension
Required more than welding position 50mm, the both sides of inner reinforced plate 4 are also respectively arranged with inclined-plane, the inclined-plane of inner reinforced plate 4 and inner core 1, urceolus
2, base plate 3 forms inner reinforced plate groove respectively, between urceolus 2 and inner reinforced plate 4, enter between inner core 1 and inner reinforced plate 4 after having preheated
Row tack welding, is specially tack welding urceolus 2 and inner reinforced plate 4 the most clockwise, tack welding inner core 1 the most clockwise and inner reinforced plate 4,
Two inner reinforced plate grooves between inner reinforced plate 4 and urceolus 2 are intended to tack welding and tack welding be soldered after carry out muscle in the next one again
Plate 4 and the tack welding of urceolus 2, two inner reinforced plate grooves between inner reinforced plate 4 and inner core 1 are intended to tack welding and tack welding completes it
After carry out next inner reinforced plate 4 and the tack welding of inner core 1 again, be also adopted by multi-layer multi-pass welding method afterwards, first carry out inner reinforced plate
4, the welding between inner core 1 and urceolus 2, particular order is clockwise to two inner reinforced plate grooves between inner reinforced plate 4 and urceolus 2
Carry out sealing weld three layers → clockwise two inner reinforced plate grooves between inner reinforced plate 4 and inner core 1 are carried out sealing weld three layers → clockwise
Full → clockwise in two between inner reinforced plate 4 and inner core 1 to two inner reinforced plate groove weldings between inner reinforced plate 4 and urceolus 2
Gusset groove welding is full, after completing welds inner reinforced plate 4 and base plate 3, and particular order is for first selecting an inner reinforced plate conduct
Starting point, i.e. first inner reinforced plate 5, followed by clockwise second inner reinforced plate 6 of arrangement, the 3rd inner reinforced plate 7, the 4th interior muscle
Plate 8, the 5th inner reinforced plate 9, the 6th inner reinforced plate 10, the 7th inner reinforced plate 11, the 8th inner reinforced plate 12, the 9th inner reinforced plate
13, the 14, the 11st inner reinforced plate 15 of the tenth inner reinforced plate, the 12nd inner reinforced plate 16, the 13rd inner reinforced plate 17, the 14th
Inner reinforced plate 18, the 15th inner reinforced plate 19.The welding sequence of all inner reinforced plates 4 is the 5 → eight inner reinforced plate of first inner reinforced plate
In the 7 → ten inner reinforced plate of 12 → three inner reinforced plate the 9 → 12nd inner reinforced plate the 16 → seven of the 14 → five inner reinforced plate
18 → the second inner reinforced plates of the 11 → 14th inner reinforced plate of gusset the 13 → four inner reinforced plate the 8 → the tenth of the 6 → nine inner reinforced plate
The 15 → six inner reinforced plate of one inner reinforced plate the 17 → 15th inner reinforced plate 19 of the 10 → 13rd inner reinforced plate, first in first
The inner reinforced plate groove sealing weld three layers of the side of gusset 5, then according to welding between all inner reinforced plates 4 noted earlier and base plate 3
Order is to remaining inner reinforced plate 4 and the inner reinforced plate groove sealing weld three layers of first inner reinforced plate 5 homonymy, i.e. using base plate 3 center of circle as ginseng
If examination point, the left and right sides of all inner reinforced plates 4 all stands base plate 3 circle centre position towards inner reinforced plate 4 as reference using people, if such as
After first the left side to first inner reinforced plate 5 carries out completing with base plate 3 sealing weld three layers, then be exactly next to the 8th inner reinforced plate
The left side of 12 carries out sealing weld three layers, followed by the 3rd inner reinforced plate 7, the most subsequently.To first inner reinforced plate 5 after completing
The inner reinforced plate groove sealing weld five layers of opposite side, if being above first the left side of inner reinforced plate 4 to be carried out sealing weld, then inner reinforced plate 5
Opposite side is exactly right side.Then according to the welding sequence of all inner reinforced plates noted earlier 4 and base plate 3 is to remaining inner reinforced plate 4 and the
The side of first inner reinforced plate 5, with the inner reinforced plate groove sealing weld five layers of opposite side, (is i.e. welded after completing by inner reinforced plate 5 again
That side of three layers) inner reinforced plate groove sealing weld four layers, then according to all inner reinforced plates noted earlier 4 and the welding sequence pair of base plate 3
Remaining inner reinforced plate 4 and the inner reinforced plate groove sealing weld four layers of first inner reinforced plate 5 homonymy, another to first inner reinforced plate 5 after completing
The inner reinforced plate groove sealing weld of side (i.e. welding that side of five layers) is full, then according to all inner reinforced plates noted earlier 4 and base plate 3
Welding sequence is full, to first after completing with the inner reinforced plate groove sealing weld of opposite side to remaining inner reinforced plate 4 and first inner reinforced plate 5
The inner reinforced plate groove sealing weld of the side of inner reinforced plate 5 is full, then according to all inner reinforced plates noted earlier 4 and the welding sequence of base plate 3
Inner reinforced plate groove sealing weld to remaining inner reinforced plate 4 and first inner reinforced plate 5 homonymy is full, after completing, by equal for 15 outer gussets 20
Required welding position, between base plate 3 and urceolus 2, is preheated until more than 205 DEG C, the 4th preheated zone formed by cloth
Cover required welding region and to extending around, the border distance respectively on urceolus 2 and base plate 3 after the 4th preheated zone extension
Required more than welding position 50mm, the both sides of outer gusset 20 are also respectively arranged with inclined-plane, the inclined-plane of outer gusset 20 and urceolus 2, the end
Plate 3 forms outer gusset groove respectively, after having preheated, urceolus 2 and outer gusset 20 is carried out tack welding, and it is the most fixed to be specially
Position weldering urceolus 2 and outer gusset 20, the then outer gusset 20 of tack welding and base plate 3 clockwise, between outer gusset 20 and urceolus 2, outer muscle
Two outer gusset grooves between plate 20 and base plate 3 are intended to tack welding and tack welding complete after carry out the outer gusset 20 of the next one again
With urceolus 2, outer gusset 20 and the tack welding of base plate 3, afterwards the most external outer gusset groove between gusset 20 and urceolus 2
Sealing weld three layers, after outer gusset 20 and two outer equal sealing welds of gusset groove three layers of urceolus 2 again gusset 20 outer to the next one and
Urceolus 2 sealing weld three layers, after completing, the most external outer gusset groove between gusset 20 and urceolus 2 fills up again, afterwards external muscle
Plate 20 and base plate 3 weld, and particular order is first to select an outer gusset 20 with base plate 3 as starting point, i.e. first outer muscle
Plate 30, followed by clockwise second outer gusset 31 of arrangement, the 3rd outer gusset 32, the 4th outer gusset 33, outside the 5th
Gusset 34, the 6th outer gusset 35, the 7th outer gusset 36, the 8th outer gusset 37, the 9th outer gusset 38, the tenth outer muscle
Plate 39, the 11st outer gusset 40, the 12nd outer gusset 41, the 13rd outer gusset 42, the 14th outer gusset 43, the tenth
Five outer gussets 44.The welding sequence of all outer gussets 20 is outside the 30 → eight outer gusset the 37 → three of first outer gusset
The outer gusset of the outer gusset of gusset the 32 → ten the 39 → five the 41 → seven outer gusset 36 → the of 34 → the 12 outer gusset
The 31 → nine outer gusset of 43 → the second outer gussets of 14 outer gussets the 33 → 11st outer muscle of the 38 → four outer gusset
The outer gusset of plate the 40 → six the 42 → 15th outer gusset 44 of the 35 → 13rd outer gusset, first to first outer gusset 20
The outer gusset groove sealing weld three layers of side, then according to the welding sequence of all outer gussets 20 noted earlier and base plate 3 is to remaining
Outer gusset and the outer gusset groove sealing weld three layers of first outer gusset 20 homonymy, i.e. with base plate 3 center of circle as a reference point if, institute
There is the left and right sides of outer gusset 20 all to stand base plate 3 circle centre position using people and face out gusset 20 as reference, if the most first to first
After the left side of individual outer gusset 30 carries out completing with base plate 3 sealing weld three layers, then be exactly next the left side to the 8th outer gusset 37
Side carries out sealing weld three layers, followed by the 3rd outer gusset 32, the most subsequently.To another of first outer gusset 30 after completing
The outer gusset groove sealing weld five layers of side, if being above that the left side of first externally gusset 20 carries out sealing weld, then outer gusset 20 another
Side is exactly right side.Then according to the welding sequence of all outer gussets 20 noted earlier and base plate 3 is to its besides gusset and first
The side of first outer gusset 30, with the outer gusset groove sealing weld five layers of opposite side, (is i.e. welded after completing by individual outer gusset 30 again
That side of three layers) outer gusset groove sealing weld four layers, then according to all outer gussets 20 noted earlier and the welding sequence pair of base plate 3
Its besides gusset and outer gusset groove sealing weld four layers of first outer gusset 30 homonymy, another to first outer gusset 30 after completing
The outer gusset groove sealing weld of side (i.e. welding that side of five layers) is full, then according to all outer gussets 20 noted earlier and base plate 3
Welding sequence to it, besides gusset and first outer gusset 30 are full, to first after completing with the outer gusset groove sealing weld of opposite side
The outer gusset groove sealing weld of the side of individual outer gusset 30 is full, then according to the welding of all outer gussets 20 noted earlier and base plate 3
Order to its besides gusset 20 and first outer gusset 30 homonymy outer gusset groove sealing weld expire because welding urceolus 2, interior muscle
The when of plate 4 and outer gusset 20, urceolus 2, inner reinforced plate 4 and outer gusset 20 are all cold when of taking back, so under often carrying out
One step welding, will first preheat, the first preheated zone before ensureing all the time in whole welding process, the second preheating
The temperature in the region that region, the 3rd preheated zone and the 4th preheated zone cover is more than 205 DEG C.
The when of described inner core 1 tack welding, the weld seam of inner core 1 tack welding is positioned at the outer groove 27 of inner core, inner core 1 tack welding
Order is a → e → c → g → b → f → d → h, and arc length M of inner core 1 tack welding weld seam is M=π D/ with the relation of inner core 1 outer diameter D
24, after being soldered, inner core 1 tack welding weld seam striking and receipts arc end to be polished, the inner core 1 tack welding weld seam after polishing launches
After cross section be isosceles trapezoid, the base angle of isosceles trapezoid is 23 °～35 °.The intensity of tack welding is effectively ensured, prevents welding process
Middle workpiece splits
Described inner core internal groove 26 angle is 20 °～28 °, because inner core 1 and the edge of base plate 3, so the outer slope of inner core
Mouthful bigger than inner core internal groove 26 angle 2 ° of 27 angles, two ends not weld penetration can to increase welding strong when effectively preventing welding line joint
Degree.
The when of described urceolus 2 tack welding, the weld seam of urceolus 2 tack welding is positioned at the outer groove 29 of urceolus, urceolus 2 tack welding
Order is a → e → c → g → b → f → d → h, and arc length N of urceolus 2 tack welding weld seam is N=π E/ with the relation of urceolus 2 external diameter E
24, after being soldered, urceolus 2 tack welding weld seam striking and receipts arc end are polished so that the urceolus 2 tack welding weld seam after polishing
Cross section after expansion is isosceles trapezoid, and the base angle of isosceles trapezoid is 23 °～35 °.The intensity of tack welding is effectively ensured, prevents welding
During workpiece split
Described urceolus internal groove 28 angle is 20 °～28 °, outer groove 29 angle of urceolus and urceolus internal groove 28 angle phase
Contact Deng the bottom of outer both the grooves 29 of, urceolus internal groove 28 and urceolus and contact point is positioned at the centre position of urceolus 2 thickness.Have
Imitate two ends not weld penetration when preventing welding line joint.
The when of described inner reinforced plate 4 and outer gusset 20 tack welding, it is soldered and is intended to afterwards inner reinforced plate 4 tack welding weld seam with outer
The striking of gusset 20 tack welding weld seam and receipts arc end are polished so that inner reinforced plate 4 tack welding weld seam and outer gusset 20 tack welding
The cross section of weld seam is isosceles trapezoid, and the base angle of isosceles trapezoid is 23 °～35 °.The intensity of tack welding is effectively ensured, prevents from welding
In journey, workpiece splits
Described inner reinforced plate groove and outer gusset bevel angle are 20 °～28 °.When effectively preventing welding line joint, two ends are welded not
Thoroughly.
Because internal ring 21 does not contacts with base plate 3 with outer shroud 23, so not affecting the end when of welding internal ring 21 and outer shroud 23
The deformation of plate 3, and the bottom surface of roller pad 24 is attached on the end face of base plate 3, does not also interfere with the deformation of base plate 3.In the present invention not
Relate to internal ring 21, outer shroud 23 and the welding of roller pad 24.
The invention have the advantage that the Product jointing in terms of nuclear power requires the highest, equipment is big, and welding difficulty is big, in utilization
State method, it is ensured that the maximum deformation quantity of base plate controls, in≤9.6mm, firm welding, to meet the welding quality in terms of nuclear power
Requirement, improves the service life of base.
Claims (7)
1. heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant, it is characterised in that: by two
Cylinder frock and urceolus frock are shelved on place, and inner core frock and urceolus frock are all cylindric, and the diameter of urceolus frock is more than
The diameter of inner core frock, is then placed on base plate in inner core frock and urceolus frock, the center of circle of base plate and inner core frock, urceolus work
The center of circle of dress is concentric, preheats both welding positions until more than 205 DEG C after being placed on base plate by inner core, the formed
One preheated zone covers inner core and the welding region of base plate and stretches out, after the first preheated zone extension on inner core and base plate
Border respectively apart from both more than welding position 50mm, the welding position of inner core is in a circumferential direction and in the clockwise direction
On be divided into the welding region that eight arc length of a, b, c, d, e, f, g, h are equal, after having preheated, inner core and base plate are carried out tack welding,
Being provided with a circle inclined-plane inside and outside inner core, the inclined-plane in inner core forms V-arrangement inner core internal groove, the inclined-plane outside inner core with backplate surface
Forming the outer groove of V-arrangement inner core with backplate surface, use multi-layer multi-pass welding method afterwards, particular order is inner core internal groove weldering three
The outer groove welding three layers → inner core internal groove of layer → inner core welds the outer groove welding the 4th of the 4th layer → inner core and layer 5 → inner core inner slope
Mouthful weldering is full → and the outer groove welding of inner core is full, a → e → c → g → b → f → d → h the most in order every layer of weldering when simultaneously；In
Cylinder weld after welding urceolus, after urceolus is placed on base plate, both welding positions are preheated until more than 205 DEG C, institute
Second preheated zone of formation covers inner core and the welding region of base plate and outer extension, after the second preheated zone extension outside
Cylinder and base plate on border respectively apart from both more than welding position 50mm, the welding position of urceolus in a circumferential direction and
The most same inner core, is also divided into the welding region that eight arc length of a, b, c, d, e, f, g, h are equal, after having preheated externally
Cylinder and base plate carry out tack welding, are also provided with a circle inclined-plane inside and outside urceolus, and the inclined-plane in urceolus is formed outside V-arrangement with backplate surface
Cylinder internal groove, the inclined-plane outside urceolus forms groove outside V-arrangement urceolus with backplate surface, is also adopted by multi-layer multi-pass welding method afterwards,
Particular order is that the urceolus internal groove weldering outer groove welding three layers → urceolus internal groove of three layers → urceolus welds the 4th layer and layer 5 → outer
It is full that the outer groove welding the 4th of cylinder and layer 5 → urceolus internal groove weld the outer groove welding of full → urceolus, presses again welding for every layer when simultaneously
According to order a → e → c → g → b → f → d → h；After inner core, urceolus and base plate have welded, in 15 inner reinforced plates are distributed on
After between cylinder and urceolus, preheating required welding position until more than 205 DEG C, the 3rd preheated zone formed covers institute
Need welding region and to extending around, the border distance institute respectively on inner core, urceolus and base plate after the 3rd preheated zone extension
More than welding position 50mm, the both sides of inner reinforced plate is needed also to be respectively arranged with inclined-plane, the inclined-plane of inner reinforced plate and inner core, urceolus, base plate
Form inner reinforced plate groove respectively, after having preheated, carry out tack welding between urceolus and inner reinforced plate, between inner core and inner reinforced plate, tool
Body is first clockwise tack welding urceolus and inner reinforced plate, tack welding inner core and inner reinforced plate the most clockwise, inner reinforced plate and urceolus it
Between two inner reinforced plate grooves be intended to tack welding and tack welding be soldered after carry out the tack welding of next inner reinforced plate and urceolus again,
Two inner reinforced plate grooves between inner reinforced plate and inner core are intended to tack welding and tack welding complete after carry out next inner reinforced plate again
With the tack welding of inner core, it is also adopted by multi-layer multi-pass welding method afterwards, first carries out the welding between inner reinforced plate and inner core, urceolus,
Particular order is that two inner reinforced plate grooves between inner reinforced plate and urceolus carry out sealing weld three layers → the most internal muscle clockwise
Two inner reinforced plate grooves between plate and inner core carry out sealing weld three layers → clockwise to two interior muscle between inner reinforced plate and urceolus
Plate groove welding is full → full to two inner reinforced plate groove weldings between inner reinforced plate and inner core, to inner reinforced plate and the end after completing clockwise
Plate welds, particular order for first selecting an inner reinforced plate as starting point, i.e. first inner reinforced plate, the welding of all inner reinforced plates
Order is first inner reinforced plate → the 8th inner reinforced plate clockwise → the 3rd interior muscle of inner reinforced plate → clockwise ten clockwise
Plate → the 5th inner reinforced plate clockwise → the 12nd inner reinforced plate clockwise → the 7th inner reinforced plate → clockwise tenth clockwise
Four inner reinforced plate → second inner reinforced plate clockwise → the 9th inner reinforced plate clockwise → the 4th inner reinforced plate → up times clockwise
In the 11st inner reinforced plate of pin → the 6th inner reinforced plate clockwise → the 13rd inner reinforced plate clockwise → 15th clockwise
Gusset, first the inner reinforced plate groove sealing weld three layers to the side of first inner reinforced plate, then according to all inner reinforced plates noted earlier with
The inner reinforced plate groove sealing weld three layers to remaining inner reinforced plate and first inner reinforced plate homonymy of the welding sequence of base plate, to first after completing
The inner reinforced plate groove sealing weld five layers of the opposite side of individual inner reinforced plate, then according to all inner reinforced plates noted earlier are suitable with welding of base plate
Remaining inner reinforced plate of ordered pair and first inner reinforced plate are with the inner reinforced plate groove sealing weld five layers of opposite side, to first inner reinforced plate after completing
Side inner reinforced plate groove sealing weld four layers, then according to the welding sequence of all inner reinforced plates noted earlier and base plate is to muscle in remaining
The inner reinforced plate groove sealing weld four layers of plate and first inner reinforced plate homonymy, inner reinforced plate to the opposite side of first inner reinforced plate after completing
Groove sealing weld is full, then according to the welding sequence of all inner reinforced plates noted earlier and base plate is to remaining inner reinforced plate and first interior muscle
Plate is full with the inner reinforced plate groove sealing weld of opposite side, and after completing, the inner reinforced plate groove sealing weld to the side of first inner reinforced plate is full, so
After the welding sequence of the most all inner reinforced plates and base plate to remaining inner reinforced plate and the interior muscle of first inner reinforced plate homonymy
Plate groove sealing weld is full, after completing, is distributed between base plate and urceolus by 15 outer gussets, preheats required welding position
Until more than 205 DEG C, the 4th preheated zone formed covers required welding region and to extending around, and the 4th preheated zone is prolonged
After stretching, the border on urceolus and base plate is respectively apart from required more than welding position 50mm, and the both sides of outer gusset are also respectively arranged with
Inclined-plane, the inclined-plane of outer gusset and urceolus, base plate form outer gusset groove respectively, carry out urceolus and outer gusset determining after having preheated
Position weldering, is specially first clockwise tack welding urceolus and outer gusset, then the outer gusset of tack welding and base plate clockwise, and outer gusset is with outer
Two outer gusset grooves between Tong, between outer gusset and base plate are intended to tack welding and tack welding complete after carry out the next one again
Outer gusset and the tack welding of urceolus, outer gusset and base plate, afterwards the most external outer gusset groove between gusset and urceolus
Sealing weld three layers, gusset outside the next one is filled out after the two of urceolus outer equal sealing welds of gusset groove three layers by an outer gusset again with urceolus
Welding three layers, after completing, the most external outer gusset groove between gusset and urceolus fills up again, and externally gusset and base plate enter afterwards
Row welding, particular order is first to select an outer gusset with base plate as starting point, i.e. first outer gusset, the weldering of all outer gussets
Connecing order is outside first outer gusset → the 8th outer gusset clockwise → the 3rd outer gusset → clockwise ten clockwise
Gusset → the 5th outer gusset clockwise → the 12nd outer gusset clockwise → the 7th outer gusset clockwise → clockwise
14 outer gusset → second outer gusset clockwise → the 9th outer gusset clockwise → the 4th outer gussets clockwise → suitable
The 11st outer gusset of hour hands → the 6th outer gusset clockwise → the 13rd outer gusset clockwise → 15th clockwise
Outer gusset, the first outer gusset groove sealing weld three layers to the side of first outer gusset, then according to all outer gussets noted earlier
With the welding sequence of base plate to its besides gusset and outer gusset groove sealing weld three layers of first outer gusset homonymy, to after completing
The outer gusset groove sealing weld five layers of the opposite side of one outer gusset, then according to the welding of all outer gussets noted earlier and base plate
Besides gusset and first outer gusset are with the outer gusset groove sealing weld five layers of opposite side, to first outer muscle after completing to it for order
Gusset groove sealing weld four layers outside the side of plate, then according to the welding sequence of all outer gussets noted earlier and base plate is to it besides
Gusset and the outer gusset groove sealing weld four layers of first outer gusset homonymy, outer muscle to the opposite side of first outer gusset after completing
Plate groove sealing weld is full, then according to outside the welding sequence of all outer gussets noted earlier and base plate is to its besides gusset and first
Gusset is full with the outer gusset groove sealing weld of opposite side, and after completing, the outer gusset groove sealing weld to the side of first outer gusset is full,
Then according to outside the welding sequence of all outer gussets noted earlier and base plate is to its besides gusset and first outer gusset homonymy
Gusset groove sealing weld is full, the first preheated zone before ensureing all the time in whole welding process, the second preheated zone, the 3rd
The temperature in the region that preheated zone and the 4th preheated zone cover is more than 205 DEG C.
Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant the most according to claim 1,
It is characterized in that: the when of described inner core tack welding, the weld seam of inner core tack welding is positioned at the outer groove of inner core, and inner core tack welding is suitable
Sequence is a → e → c → g → b → f → d → h, and arc length M of inner core tack welding weld seam and the relation of inner core outer diameter D are M=π D/24,
After being soldered, inner core tack welding weld seam striking and receipts arc end are polished, cutting after the inner core tack welding weld seam expansion after polishing
Face is isosceles trapezoid, and the base angle of isosceles trapezoid is 23 °～35 °.
Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant the most according to claim 1,
It is characterized in that: described inner core internal groove angle is 20 °～28 °, outer bigger than inner core internal groove angle 2 ° of the bevel angle of inner core
Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant the most according to claim 1,
It is characterized in that: the when of described urceolus tack welding, the weld seam of urceolus tack welding is positioned at the outer groove of urceolus, and urceolus tack welding is suitable
Sequence is a → e → c → g → b → f → d → h, and arc length N of urceolus tack welding weld seam is N=π E/24 with the relation of urceolus external diameter E,
After being soldered, urceolus tack welding weld seam striking and receipts arc end are polished so that after the urceolus tack welding weld seam after polishing launches
Cross section be isosceles trapezoid, the base angle of isosceles trapezoid is 23 °～35 °.
Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant the most according to claim 1,
It is characterized in that: described urceolus internal groove angle is 20 °～28 °, the outer bevel angle of urceolus is equal, outward with urceolus internal groove angle
The bottom of the outer groove of cylinder internal groove and urceolus contacts and contact point is positioned at the centre position of outer barrel thickness.
Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant the most according to claim 1,
It is characterized in that: the when of described inner reinforced plate and outer gusset tack welding, be soldered and be intended to afterwards inner reinforced plate tack welding weld seam with outer
The striking of gusset tack welding weld seam and receive arc end and polish so that inner reinforced plate tack welding weld seam and outer gusset tack welding weld seam
Cross section is isosceles trapezoid, and the base angle of isosceles trapezoid is 23 °～35 °.
Heap core shell base welding method under metal stack inner member in HTGR Nuclear Power Plant the most according to claim 1,
It is characterized in that: described inner reinforced plate groove and outer gusset bevel angle are 20 °～28 °.
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| CN109128557A (en) * | 2018-10-15 | 2019-01-04 | 武汉船用机械有限责任公司 | A kind of manufacturing method of emitter water vat structural member |
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| CN101081460A (en) * | 2007-03-26 | 2007-12-05 | 南阳二机石油装备(集团)有限公司 | Large-sized T shaped joint full penetration assembled welding process |
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| CN106270974B (en) | 2018-08-10 |
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