CN207762389U - Boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over - Google Patents
Boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over Download PDFInfo
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- CN207762389U CN207762389U CN201721875953.8U CN201721875953U CN207762389U CN 207762389 U CN207762389 U CN 207762389U CN 201721875953 U CN201721875953 U CN 201721875953U CN 207762389 U CN207762389 U CN 207762389U
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Abstract
Boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over.For a long time, the bearing devices cylinder emplacement type such as boiler and pressure vessel, nuclear power or A seating heavy caliber thick wall are taken over（Referred to as take over greatly）Welding groove is mostly saddle-shaped surface form, and as cylinder trepanning circumferential surface shape constantly changes, divided edge structure is in the form of a single.That there is flame gas cuttings is of poor quality, the polishing of groove face quench-hardened case remove be not thorough, numerical control machine adds the problems such as period is long, manufacturing expense is high.The utility model composition includes take over ontology, and the bottom surface welding groove shape of taking over is made of the welding groove of multiple planar shapeds, forms D class weld grooves with barrel outer surface, the inclination angle of plane-welding groove is between 35 °~40 °.The utility model is applied to the design and manufacture of boiler and pressure container cylinder emplacement type heavy caliber thick wall take over stick electrode electric arc welding divided edge structure.
Description
Technical field：
The utility model is related to a kind of boilers and pressure container cylinder emplacement type heavy caliber thick wall to take over, and be related to boiler, pressure
The design and manufacturing field of the bearing devices such as force container and nuclear power generating equipment, for 600,000 kilowatts or more overcritical, ultra supercritical is electric
The startup cylinders such as separator and water storage tank of standing are taken over greatly, and in particular to the bearing device cylinder or cone of similar structures and specification
Body emplacement type heavy caliber thick wall takes over or the design and fabrication technology of pipe connecting flange stick electrode electric arc welding divided edge structure.
Background technology：
For a long time, the bearing devices cylinder emplacement type such as boiler and pressure vessel, nuclear power or A seating heavy caliber thick wall are taken over
（Referred to as take over greatly）Welding groove is mostly saddle-shaped surface form, as cylinder trepanning circumferential surface shape constantly changes, slope
Mouth structure is in the form of a single.It crosses in addition to manual oxygen cutting except by outwardly deploying figure, also numerical control gas cutting or numerical control gas cutting addend control boring
Milling machine programming processing etc..That there is flame gas cuttings is of poor quality, the polishing of groove face quench-hardened case remove be not thorough, numerical control machine adds the period
Long, the problems such as manufacturing expense is high.Lead to the bearing devices such as boiler and pressure vessel manufacturing enterprise take over welding groove design knot greatly
Structure and manufacturing technology backwardness, manufacturing expense are high or of poor quality.
Such as certain ultra supercritical large capacity power station water storage tank pipe fitting, as shown in figs. 4-7, the storage of cylinder φ 1151 × 151
Water tank pipe fitting totally 2, specification φ 710 × 158, steel alloy SA-182 forging, design requirement groove press the exhibition of pipe fitting outer surface
The centripetal gas cutting finished edge root face of figure curve a lines is opened, then presses b line finished edges, the inclination maximum of groove is 30 °, groove
Minimum angle-of-incidence is 0 °, remaining inclination angle is progressive successively, and root face gap and endoporus surplus are 4mm, pipe fitting central axis
Cylinder or casing centerline.
When pipe fitting curved surface groove uses numerical control boring and milling, need that first boring and milling root face circular arc, numerical programming program makes again
Whole groove curved surfaces are processed with roundlet milling head, processing capacity is small, efficiency is low, the period is long；And the apparent knife mark left after processing needs
Want manual grinding smooth.Technical process is：It is whole that forging reviews qualification → vehicle, lower end groove not vehicle → draw groove curved surface position
Set line → boring and milling root face arc surface R575.5（That is a lines）→ use roundlet milling head numerical control boring and milling welding groove curved surface（That is b lines）
→ polishing removal knife mark → groove non-destructive testing → stack shell assembly pipe fitting → manual welding is appropriate → boring and milling endoporus surplus → other works
Sequence.
Utility model content：
In order to overcome the above problem of the existing technology, the purpose of this utility model is to provide a kind of boiler and pressure is held
Device cylinder emplacement type heavy caliber thick wall is taken over.
Above-mentioned purpose is realized by following technical scheme：
A kind of boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over, and composition includes：Take over ontology, it is described
It includes four intersecting planes to take over bottom surface welding groove shape, and D class weld grooves, plane-welding groove are formed with barrel outer surface
Inclination angle between -35 °~40 °.
The boiler and pressure container cylinder emplacement type heavy caliber thick wall is taken over, it is described by four intersecting planes be by
Two pairs of symmetrically arranged plane-welding grooves compositions, one pair of which be located at the plane-welding groove inclination angle of cylinder axial direction 15 °~
40 °, with its at the inclination angle of 90 degree of position plane welding grooves at -35 °~35 °.
The boiler and pressure container cylinder emplacement type heavy caliber thick wall is taken over, and described four intersecting planes include two
To symmetrically arranged plane-welding groove, the plane-welding groove that one pair of which is located at cylinder axial direction is a pair of of combined planar welding
Groove, the folding face groove that the combined planar welding groove is made of two planes, the plane of folding face groove inner side plane
The inclination angle of welding groove is at 25 °~40 °, and the inclination angle of the plane-welding groove of folding face groove medial plane is at 5 °~20 °, another pair
Inclination angle with the axial plane-welding groove at 90 degree of positions of cylinder is at -35 °~35 °.
The beneficial effects of the utility model：
1. the utility model makes take over welding groove form greatly be simplified and innovate, retaining wall on slope method and efficiency obtain
Optimization and improve, improve boiler and pressure vessel take over stick electrode electric arc welding groove design and fabrication technology greatly it is horizontal,
Economic benefit, product quality.
The utility model will be taken over greatly for a long time in the past in the case where meeting standard, design, manufacture and requirement
Single, the continuous welding groove form of curved surface simplify, innovates, the more plane combination welding groove structures of utility model,
Welding groove structure is innovated and optimized, manufacturing process and processing method are improved and upgraded.
The utility model efficiently solves previous boiler and pressure container cylinder emplacement type take over welding groove structure greatly
Single, processing processing quality difference or manufacture difficulty is big, the problems such as costly.Meeting standard, design, manufacture and requirement
Under the premise of, by improving boiler and pressure vessel take over welding groove structure greatly, boiler and pressure vessel is made to take over welding slope greatly
Mouth design structure and manufacturing technology level, economic benefit are optimized and are promoted.It is big that tube diameter is bigger, wall thickness is thicker, practical
Novel effect is better.Several plane groove composite structures of cylinder emplacement type take over saddle nozzle greatly are at home and abroad initiated.
Certain pipe fitting saddle-shape three-dimension curved surface groove is shown in Figure 10 with novel planar groove contrast schematic diagram.The Central Plains Figure 10 saddle
The comparison of more planes or incline configuration plane-welding groove broken line of type three-dimension curved surface welding groove curve and the utility model is clear,
Difference is apparent；Original take over saddle-shape three-dimension curved surface welding groove and stack shell groove gap are uniform and stable, and the utility model is mostly flat
Face or incline configuration plane-welding groove and stack shell groove gap are uneven, variation, gap average value increase in certain deviation
1.5 again.
It is estimated that the utility model is in addition to saving considerable fusion welding metal, boring and milling novel planar groove is than former curved surface groove
Production efficiency improves 50% or so, and simplification more apparent than original structure and manufacturing process, wlding consumption are reduced, production efficiency improves, economical
Benefit and social benefit are notable.
Description of the drawings：
Attached drawing 1 is the upward view taken over of the utility model.In figure, 1 is plane of the inclination angle range between 15 °~40 °
Welding groove, 3 be plane-welding groove of the inclination angle range between -35 °~35 °, and 6 be take over endoporus surplus, and 7 be bushing pipe, and 8 are
The intersection of adjacent plane welding groove, A are tubular axis direction, and B is cylinder circumferential direction direction.
Attached drawing 2 is the side view of attached drawing 1.In figure, 4 be the inclination angle of plane-welding groove 3, and 5 be root face, and 9 be reference
Line.
Attached drawing 3 is another side view of attached drawing 1.In figure, 2 be the inclination angle of plane-welding groove 1.
Attached drawing 4 is the structural schematic diagram taken over that traditional welding groove is saddle-shaped surface form.
Attached drawing 5 is the side view taken over that traditional welding groove is saddle-shaped surface form.In figure, the maximum of groove is inclined
Angle is 30 °.
Attached drawing 6 is the vertical view taken over that traditional welding groove is saddle-shaped surface form.In figure, I, II, III, IV is
The label in the four quadrant lines of demarcation divided.
Attached drawing 7 is the outwardly deploying figure of the saddle-shaped surface welding groove of attached drawing 6.In figure, groove presses pipe fitting appearance
Then expanded view curve a lines centripetal gas cutting finished edge root face in face presses b line finished edges.
Attached drawing 8 is the upward view taken over that the utility model plane-welding groove is combined planar.In figure, A is drum shaft
Line direction, B are cylinder circumferential direction direction.
Attached drawing 9 is the side view that attached drawing 8 is taken over.
Attached drawing 10 is saddle-shape three-dimension curved surface groove and the utility model plane-welding groove comparison diagram.In figure, 10 be cylinder
Body, 11 be plane-welding groove broken line, and 12 be former shape of a saddle three-dimension curved surface groove curve, and 13 be to take over.
Specific implementation mode：
Embodiment 1：
A kind of boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over, and composition includes：Take over ontology, it is described
It includes four intersecting planes to take over bottom surface welding groove shape, and D class weld grooves, plane-welding groove are formed with barrel outer surface
Inclination angle between -35 °~40 °.
Embodiment 2：
It is taken over according to boiler described in embodiment 1 and pressure container cylinder emplacement type heavy caliber thick wall, it is described by four
Intersecting plane is made of two pairs of symmetrically arranged plane-welding grooves, and one pair of which is located at the plane-welding groove of cylinder axial direction
Inclination angle at 15 °~40 °, with its at the inclination angle of 90 degree of position plane welding grooves at -35 °~35 °.
Embodiment 3：
It is taken over according to boiler described in embodiment 1 and pressure container cylinder emplacement type heavy caliber thick wall, described four phases
It includes two pairs of symmetrically arranged plane-welding grooves to hand over plane, and the plane-welding groove that one pair of which is located at cylinder axial direction is a pair of
Combined planar welding groove, the folding face groove that the combined planar welding groove is made of two planes, in folding face groove
The inclination angle of the plane-welding groove of side plane is at 25 °~40 °, and the inclination angle of the plane-welding groove of folding face groove medial plane is at 5 °
~20 °, another pair is with cylinder axially at the inclination angle of the plane-welding groove of 90 degree of positions at -35 °~35 °.
Embodiment 4：
The connection method that above-mentioned boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over, the plane-welding slope
Mouth is process using the machining process of sawing, boring and milling or plane, and the intersection corner angle of adjacent plane welding groove are polishing to
Smoothly, it will take over and be assembled on stack shell, positioned by the bushing pipe in taking over, then carried out by hand at plane-welding groove
Welding electrode arc welding is welded, the endoporus surplus and bushing pipe that boring and milling is taken over.
Embodiment 5：
Boiler and pressure container cylinder emplacement type heavy caliber thick wall according to embodiment 1 or 2 or 3 or 4 are taken over and are connected
Method is connect, boiler and pressure container cylinder emplacement type heavy caliber thick wall take over novel handcraft welding electrode arc welding welding groove structure are shown in
Fig. 1-3.Fig. 1-3 is that cylinder emplacement type or A seating heavy caliber thick wall take over each side's direction view, and Fig. 1-3 includes welding groove plane
1 and 3, the inclination angle 2,4 of groove plane 1,3, root face, endoporus surplus, welding internal lining pipe, the intersection of groove plane 1,3.It connects greatly
Pipe lower end welding groove surface 1,3 is plane or plane combination, the groove face of four or multiple planes composition is formed, with cylinder
External surface forms D class weld grooves；The inclination angle 4 of groove is at -35 °~35 °, inclination angle 2 at 15 °~40 °；Big take over endoporus surplus
And it takes over welding internal lining pipe machine after the completion of weld seam welds and adds removal；Four planes of big take over welding groove 1,3 are suitable for use
The simple and mechanical method processing such as sawing, boring and milling, plane；The groove gap that root face is formed with barrel outer surface can be in 5~20mm
There are four planes to be crossed to form on the entire welding groove surface of variation, greatly 1,3 four plane of take over welding groove plane composition
Discontinuous corner angle do not have harmful effect to manual welding operation and welding quality；It is big to take over welding liner when necessary
Connecting tubes and cylinder trepanning inner surface and weld seam backing welding；It is big that take over center line can vertically drum surface can also be appropriate
Favour drum surface.
Embodiment 6：
Boiler and pressure container cylinder emplacement type heavy caliber thick wall according to embodiment 1 or 2 or 3 or 4 are taken over and are connected
Method is connect, observation in kind and three-dimensional artificial are repeatedly investigated by production scene, it is found that pipe fitting groove curved surface is largely non-
Chang Pinghuan, close seemingly several plane combinations, it is very nearly the same with plane groove；Welding is operated by exchanging plane groove with welder
Also it does not influence.According to the utility model boiler and pressure container cylinder emplacement type heavy caliber thick wall takes over and connection method,
It is calculated by redesigning, certain power station water storage tank pipe fitting welding groove structure is innovated, and new structure is shown in Fig. 8-9.Fig. 8-9
Pipe fitting welding groove root face gap is amplified to 10 ± 5 mm of average value（To meet plane groove feature, facilitate welding, guarantee weldering
Thoroughly）, 30 ° of groove planes due to thickness of pipe wall weld seam it is deep, it is quasi- to be inclined using combined planar or multi-angle combined planar groove, groove plane
Angle is reduced to 26 ° and 15 °（To reduce welding metal consumption）, mark groove away from upper end 650mm（To facilitate determining plane groove position
It sets）, cancel outwardly deploying figure and groove curve, increase one section of internal lining pipe and a plane groove view newly, entire groove simplifies
For by two 26 °, two 15 ° of tapered planes and two 0 ° of planes, totally six planes are constituted.
When the more plane grooves of pipe fitting use boring and milling, numerical programming program is not needed, semi shield oil cylinder can be used to press plane position
It sets, angle processing, processing capacity is big, surface is not in knife mark, it is efficient once to complete, and technical process is：Forging is reviewed
Qualification → vehicle is whole, lower end groove not vehicle → drawing groove plan-position line → with 2 tapered planes of semi shield oil cylinder boring and milling welding groove →
Plane of polishing intersection corner angle are smooth → groove non-destructive testing → stack shell assembly pipe fitting and internal lining pipe → manual welding it is appropriate → boring and milling in
Hole surplus and bushing pipe → other process.
Claims (3)
1. a kind of boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over, composition includes：Take over ontology, feature
It is：The bottom surface welding groove shape of taking over includes four intersecting planes, forms D class weld grooves with barrel outer surface, puts down
The inclination angle of face welding groove is between -35 °~40 °.
2. boiler according to claim 1 and pressure container cylinder emplacement type heavy caliber thick wall are taken over, it is characterized in that：It is described
Four intersecting planes be made of two pairs of symmetrically arranged plane-welding grooves, one pair of which is located at the face bonding of cylinder axial direction
Groove inclination angle is connect at 15 °~40 °, with its at the inclination angle of 90 degree of position plane welding grooves at -35 °~35 °.
3. boiler according to claim 1 or 2 and pressure container cylinder emplacement type heavy caliber thick wall are taken over, it is characterized in that：
Four intersecting planes include two pairs of symmetrically arranged plane-welding grooves, and one pair of which is located at the face bonding of cylinder axial direction
It is a pair of of combined planar welding groove, the folding face slope that the combined planar welding groove is made of two planes to connect groove
Mouthful, the inclination angle of the plane-welding groove of folding face groove inner side plane is at 25 °~40 °, the plane-welding of folding face groove medial plane
The inclination angle of groove at 5 °~20 °, the inclination angle of another pair and the axial plane-welding groove at 90 degree of positions of cylinder -35 °~
35°。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721875953.8U CN207762389U (en) | 2017-12-28 | 2017-12-28 | Boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721875953.8U CN207762389U (en) | 2017-12-28 | 2017-12-28 | Boiler and pressure container cylinder emplacement type heavy caliber thick wall are taken over |
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| CN207762389U true CN207762389U (en) | 2018-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975642A (en) * | 2017-12-28 | 2018-05-01 | 哈尔滨锅炉厂有限责任公司 | Boiler and the adapter of pressure container cylinder emplacement type heavy caliber thick wall and connection method |
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2017
- 2017-12-28 CN CN201721875953.8U patent/CN207762389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975642A (en) * | 2017-12-28 | 2018-05-01 | 哈尔滨锅炉厂有限责任公司 | Boiler and the adapter of pressure container cylinder emplacement type heavy caliber thick wall and connection method |
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