CN103128420A - Construction technology of embedded reinforcing structure for large-orifice pipe of container - Google Patents
Construction technology of embedded reinforcing structure for large-orifice pipe of container Download PDFInfo
- Publication number
- CN103128420A CN103128420A CN2013100613608A CN201310061360A CN103128420A CN 103128420 A CN103128420 A CN 103128420A CN 2013100613608 A CN2013100613608 A CN 2013100613608A CN 201310061360 A CN201310061360 A CN 201310061360A CN 103128420 A CN103128420 A CN 103128420A
- Authority
- CN
- China
- Prior art keywords
- plate
- stiffening plate
- embedding
- welding
- embedded reinforcing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a construction technology of an embedded reinforcing structure for a large-orifice pipe of a container. Application of the construction technology is limited due to the fact that conventional manufacturing and heating processing, welding quality control, heat treatment equipment and warping preventing process of the embedded reinforcing structure used in refining reactors or reproducers are complicated. The construction technology includes the steps of determining blanking length of an embedded reinforcing plates and a parent plate; arranging and disposing the embedded reinforcing plate and the parent plate; arranging and disposing the embedded reinforcing plate and the parent plate; welding divided parts of the embedded reinforcing plate, welding a pipe into an orifice of the embedded reinforcing plate for the pipe, and finally performing bulk heat treatment for a reinforcing plate assembly by means of furnace heat treatment. An arc plate is fixedly welded horizontally on the inner side of the embedded reinforcing plate to prevent radian changes thereof, steel tubes longitudinally penetrate through the divided plates along an axial line to prevent the embedded reinforcing plate from deforming axially. By improving quality of thick plate welding and controlling of deformation of the thick plate, assembling and heat treatment tooling is optimized, the deformation after the embedded reinforcing plate assembly welding and heat treatment is controlled within an allowable range of design, and manufacturing quality of the embedded reinforcing structure is guaranteed.
Description
Technical field
The present invention relates to the embedding reinforced structure of the housings such as a kind of petroleum chemical industry oil refining apparatus reactor, regenerator, large-scale storage tank, be specifically related to the embedded reinforced structure construction technology of a kind of container large opening.
Background technology
embed reinforced structure at petroleum chemical industry oil refining apparatus reactor, be widely used in the main equipments such as regenerator, the tradition reinforced structure is at the oil refining apparatus reactor, in the use of regenerator, because stiffening plate and housing are two-layer, stress easily causes large opening position lining crackle, cause device to be forced to stop production in serious situation, cause reactor regenerator large opening lining cracking for improving stress, design inclination embeds reinforced structure in adopting at present, but owing to embedding the reinforcement thickness of slab, make and the Technology for Heating Processing complexity, welding quality is controlled, heat treatment tooling and prevent that deformation technique is complicated, so actual being subject to certain restrictions.
Summary of the invention
The purpose of this invention is to provide a kind of effective raising welding quality and with Deformation control in allowed band the embedded reinforced structure construction technology of container large opening.
The technical solution adopted in the present invention is:
The embedded reinforced structure construction technology of container large opening is characterized in that:
Step 1: the cutting length of determining to embed stiffening plate, cylindrical shell parent plate:
(1) embed stiffening plate cutting length S1=(2 π R1
In/ 360) * α
Wherein, R1
InFor embedding the central diameter of reinforcement, α is for embedding the central angle angle of stiffening plate;
(2) parent plate cutting length S2=(2 π R2
In/ 360) * (360-α)
Wherein, R2
InBe the central diameter of parent plate, α is for embedding the central angle angle of stiffening plate;
Step 2: embed typesetting and the processing of stiffening plate:
(1) the upper and lower circumferential weld of embedding stiffening plate is overlapped with the circumferential weld of cylindrical shell parent plate, the requirement of design minimum dimension should be satisfied to embedding stiffening plate four limit sizes in the nozzle opening center that embeds stiffening plate, the surrounding that embeds stiffening plate should reserve suitable manufacturing surplus, and 100mm is all strengthened on its four limits;
(2) longitudinal joint that embeds the band plate up and down of stiffening plate staggers mutually, and adjacent longitudinal joint spacing is greater than 3 times of thicknesss of slab, and is not less than 100mm, forbids to form " ten " word weld seam between longitudinal joint and circumferential weld;
When (3) the embedding stiffening plate of different thicknesss of slab forms weld seam, take thin plate as benchmark, slab is connected the edge and carry out the skiving processing;
Step 3: embed the welding between the stiffening plate burst:
(1) take electrical heating to weld preheating and after heat, preheat temperature is 80-120 ℃, and postheat temperature is 200-350 ℃;
(2) embed stiffening plate and weld according to the order of first self splicing short seam, rear slit, take multi-layer multi-pass welding in welding;
Step 4: the assembly welding of taking over:
(1) adapter is welded to nozzle opening place that embeds stiffening plate;
(2) adapter place will be taken over the diameter decile, in the Along ent position, transversely strengthening arc plate will be set, and adapter place is reinforced the arc plate and need be embedded and take over innerly, and stretches out and takes over outer 100mm, reinforces in taking over and vertically uses Φ 273*15mm spool support between the arc plate;
Step 5: heat treatment and anti-deformation tool:
(1) for preventing that embedding the stiffening plate radian changes, embedding the inboard reinforcement of weld transverse arc of stiffening plate plate; For preventing embedding stiffening plate along its axis direction distortion, run through steel pipe along the stiffening plate axis between reinforcing transverse arc plate;
(2) adopt the interior heat treatment mode of stove to carry out bulk heat treatmet to the stiffening plate sub-assembly.
In step 2 (3), when slab is connected the skiving that carries out at the edge and processes, make slab connect the inclined-plane that the edge forms thickness-tapered, thickness of slab is poor during greater than 5mm, and the length that skiving is processed is poor greater than the thickness of slab of 3 times.
In step 5 (1), for preventing that embedding the stiffening plate radian changes at the inboard reinforcement of weld transverse arc of embedding stiffening plate plate, require to reinforce transverse arc plate radian consistent with the inboard radian of embedding stiffening plate, thickness is 30mm, Length Ratio embeds each long 100mm of the every side of stiffening plate, width adds 500mm for embedding the stiffening plate sagitta, and longitudinal pitch is 600-800mm; The reinforcing transverse arc plate of upper and lower both sides is not more than 100mm with the spacing that embeds the upper and lower port of stiffening plate;
Embed stiffening plate and reinforce between the transverse arc plate and take two-sided staggered discontinuous welding, weldering 100mm interval 100mm, leg height 20-35mm.
In step 5 (1), for preventing from embedding stiffening plate along its axis direction distortion, run through steel pipe along the stiffening plate axis reinforcing between the transverse arc plate, namely add three roads and rigidly fix steel pipe embedding position, stiffening plate inner arc side upper, middle and lower;
The steel pipe specification is Φ 273*15mm, steel pipe spacing 800mm, and the steel pipe center is the 200-350 millimeter to reinforcing transverse arc plate straight flange distance;
Be welded as the single face full weld between steel pipe and reinforcing transverse arc plate, the leg height is the minimum wall thickness (MINI W.) of steel pipe and gusset plate.
In step 5 (2), 620 ± 20 ℃ of heat treatment temperatures, constant temperature time 2.5h;
Programming rate: do not limit below 200 ℃, programming rate remained between 55-90 ℃/h in time more than 200 ℃, and temperature needs constant temperature 0.75 hour in the time of 200 ℃; When intensification is in 200 ℃～300 ℃ of scopes, programming rate should be controlled at as far as possible 70 ℃/below h;
Cooling rate: in the time of more than 300 ℃, cooling rate remains between 55-116 ℃/h; Cooling with stove below 300 ℃; Below 50 ℃, but blow-on is naturally cooling, and lifting is subsequently come out of the stove.
The present invention has the following advantages:
The present invention is by selecting suitable assembly method, strengthen the control of thick plates quality and distortion, optimize assembling and heat treatment tooling, make the Deformation control that embeds after stiffening plate assembly welding and heat treatment in the design allowed band, guaranteed to embed the workmanship of reinforced structure.
Description of drawings
Fig. 1 is for embedding reinforced structure and common reinforced structure contrast schematic diagram.Wherein, cylinder internal diameter is R
InThe central diameter (radius) that embeds stiffening plate is R1
In, the central diameter of parent plate (radius) is R2
In, the angle that embeds stiffening plate is α °.
Fig. 2 is for embedding the reinforced structure schematic diagram.
Fig. 3 is the simple reinforced structure typesetting figure that embeds.Wherein, dash area is for embedding stiffening plate, and all the other are thick parent plate.
Fig. 4 is more complicated embedding reinforced structure typesetting figure.Wherein, dash area is for embedding stiffening plate, and all the other are parent plate.
Fig. 5 is for embedding the different thicknesss of slab of stiffening plate junction chamfered edge processing schematic diagram.
Fig. 6 is for embedding stiffening plate consolidation process schematic diagram.
Fig. 7 is A-A sectional view in Fig. 6.
Fig. 8 places schematic diagram for embedding in the reinforced structure integrated heat treatment furnace.
Fig. 9 is A-A sectional view in Fig. 8.
The specific embodiment
The present invention will be described in detail below in conjunction with the specific embodiment.
The embedded reinforced structure construction technology of container large opening involved in the present invention, the large opening that is applicable to the housings such as petroleum chemical industry oil refining apparatus reactor, regenerator, large-scale storage tank embeds the manufacturing of reinforced structure etc.Specifically comprise the following steps:
Step 1: the cutting length of determining to embed stiffening plate, cylindrical shell parent plate:
(1) embed stiffening plate cutting length S1=(2 π R1
In/ 360) * α
Wherein, R1
InFor embedding the central diameter of reinforcement, α is for embedding the central angle angle of stiffening plate;
(2) parent plate cutting length S2=(2 π R2
In/ 360) * (360-α)
Wherein, R2
InBe the central diameter of parent plate, α is for embedding the central angle angle of stiffening plate.
As shown in Figure 2, if when the cylindrical shell inboard flushes, R1
InFor embedding the central diameter of reinforcement, R2
InBe the central diameter of parent plate, α is for embedding the central angle angle of stiffening plate, R
InBe cylinder internal diameter.
Step 2: embed typesetting and the processing of stiffening plate:
(1) the upper and lower circumferential weld of embedding stiffening plate is overlapped with the circumferential weld of cylindrical shell parent plate, the requirement of design minimum dimension should be satisfied to embedding stiffening plate four limit sizes in the nozzle opening center that embeds stiffening plate, the size of the embedding stiffening plate when making typesetting must not be less than designing requirement, the surrounding that embeds stiffening plate should reserve suitable manufacturing surplus, and 100mm is all strengthened on its four limits;
(2) longitudinal joint that embeds the band plate up and down of stiffening plate staggers mutually, and adjacent longitudinal joint spacing is greater than 3 times of thicknesss of slab, and is not less than 100mm, forbids to form " ten " word weld seam between longitudinal joint and circumferential weld;
When (3) the embedding stiffening plate of different thicknesss of slab forms weld seam, take thin plate as benchmark, slab is connected the edge and carry out the skiving processing.
Step 3: embed the welding between the stiffening plate burst:
(1) take electrical heating to weld preheating and after heat, preheat temperature is 80-120 ℃, and postheat temperature is 200-350 ℃;
(2) embed stiffening plate and weld according to the order of first self splicing short seam, rear slit, take multi-layer multi-pass welding in welding.
Step 4: the assembly welding of taking over:
(1) adapter is welded to nozzle opening place that embeds stiffening plate;
(2) adapter place will be taken over the diameter decile, in the Along ent position, transversely strengthening arc plate will be set, and adapter place is reinforced the arc plate and need be embedded and take over innerly, and stretches out and takes over outer 100mm, reinforces in taking over and vertically uses Φ 273*15mm spool support between the arc plate.
Step 5: heat treatment and anti-deformation tool:
(1) for preventing that embedding the stiffening plate radian changes, embedding the inboard reinforcement of weld transverse arc of stiffening plate plate; For preventing embedding stiffening plate along its axis direction distortion, run through steel pipe along the stiffening plate axis between reinforcing transverse arc plate;
(2) after embedding stiffening plate and nozzle assembling are integral body, for eliminating stiffening plate manufacturing and welding stress, prevent that the stiffening plate stress release from producing additional force and distortion to parent plate, adopt the interior heat treatment mode of stove to carry out bulk heat treatmet to the stiffening plate sub-assembly, embed stiffening plate heat treatment and adopt the interior heat treatment mode of stove to carry out, take the burning diesel oil heating.
Below be each step details explanation:
(1) in step 2 (3), when slab is connected the skiving that carries out at the edge and processes, make slab connect the inclined-plane that the edge forms thickness-tapered, thickness of slab is poor during greater than 5mm, and the length that skiving is processed is poor greater than the thickness of slab of 3 times.Parent plate because Wall-Thickness Difference is larger, should be considered the difference of different thicknesss of slab with the embedding stiffening plate during typesetting core material, embed stiffening plate and should carry out respectively the wall thickness processing according to different separately wall thickness from parent plate.
(2) owing to embedding the reinforcement thickness of slab and being low-alloy steel, welding process need be carried out the measure that prevents crackle and welding deformation.In step 5 (1), for preventing that embedding the stiffening plate radian changes at the inboard reinforcement of weld transverse arc of embedding stiffening plate plate, require to reinforce transverse arc plate radian consistent with the inboard radian of embedding stiffening plate, thickness is 30mm, Length Ratio embeds each long 100mm of the every side of stiffening plate, width adds 500mm for embedding the stiffening plate sagitta, and longitudinal pitch is 600-800mm; The reinforcing transverse arc plate of upper and lower both sides is not more than 100mm with the spacing that embeds the upper and lower port of stiffening plate.
Embed stiffening plate and reinforce between the transverse arc plate and take two-sided staggered discontinuous welding, weldering 100mm interval 100mm, leg height 20-35mm.
(3) in step 5 (1), for preventing from embedding stiffening plate along its axis direction distortion, run through steel pipe along the stiffening plate axis reinforcing between the transverse arc plate, namely add three roads and rigidly fix steel pipe embedding position, stiffening plate inner arc side upper, middle and lower.
The steel pipe specification is Φ 273*15mm, steel pipe spacing 800mm, and the steel pipe center is the 200-350 millimeter to reinforcing transverse arc plate straight flange distance.
Be welded as the single face full weld between steel pipe and reinforcing transverse arc plate, the leg height is the minimum wall thickness (MINI W.) of steel pipe and gusset plate.
(4) in step 5 (2), 620 ± 20 ℃ of heat treatment temperatures, constant temperature time 2.5h;
Programming rate: do not limit below 200 ℃, programming rate remained between 55-90 ℃/h in time more than 200 ℃, and temperature needs constant temperature 0.75 hour in the time of 200 ℃; When intensification is in 200 ℃～300 ℃ of scopes, programming rate should be controlled at as far as possible 70 ℃/below h.
Cooling rate: in the time of more than 300 ℃, cooling rate remains between 55-116 ℃/h; Cooling with stove below 300 ℃; Below 50 ℃, but blow-on is naturally cooling, and lifting is subsequently come out of the stove.
When embedding stiffening plate manufacturing and heat treatment typesetting, need to consider to make and allowance, carry out typesetting in strict accordance with actual minimum dimension.
Material and equipment:
The processing points for attention:
When embedding the stiffening plate chamfered edge and processing, in strict accordance with the requiring the orientation, distinguish and carry out skiving after inside and outside and process of typesetting figure, cut mistake and cause and do over again otherwise easily cause during skiving.
Need carry out the control measure of welding deformation when embedding the stiffening plate assembling, strict control embeds stiffening plate geometric shape size, need carry out preheating and after heat in welding process, prevents weld crack and welding deformation.
Embedding the stiffening plate heat treatment tooling needs reinforce in strict accordance with this technique, advances to prevent from steadily supporting after heat-treatment furnace firm, needs during heat treatment operate in strict accordance with heat treatment cycle curve.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.
Claims (5)
1. the embedded reinforced structure construction technology of container large opening is characterized in that:
Step 1: the cutting length of determining to embed stiffening plate, cylindrical shell parent plate:
(1) embed stiffening plate cutting length S1=(2 π R1
In/ 360) * α
Wherein, R1
InFor embedding the central diameter of reinforcement, α is for embedding the central angle angle of stiffening plate;
(2) parent plate cutting length S2=(2 π R2
In/ 360) * (360-α)
Wherein, R2
InBe the central diameter of parent plate, α is for embedding the central angle angle of stiffening plate;
Step 2: embed typesetting and the processing of stiffening plate:
(1) the upper and lower circumferential weld of embedding stiffening plate is overlapped with the circumferential weld of cylindrical shell parent plate, the requirement of design minimum dimension should be satisfied to embedding stiffening plate four limit sizes in the nozzle opening center that embeds stiffening plate, the surrounding that embeds stiffening plate should reserve suitable manufacturing surplus, and 100mm is all strengthened on its four limits;
(2) longitudinal joint that embeds the band plate up and down of stiffening plate staggers mutually, and adjacent longitudinal joint spacing is greater than 3 times of thicknesss of slab, and is not less than 100mm, forbids to form " ten " word weld seam between longitudinal joint and circumferential weld;
When (3) the embedding stiffening plate of different thicknesss of slab forms weld seam, take thin plate as benchmark, slab is connected the edge and carry out the skiving processing;
Step 3: embed the welding between the stiffening plate burst:
(1) take electrical heating to weld preheating and after heat, preheat temperature is 80-120 ℃, and postheat temperature is 200-350 ℃;
(2) embed stiffening plate and weld according to the order of first self splicing short seam, rear slit, take multi-layer multi-pass welding in welding;
Step 4: the assembly welding of taking over:
(1) adapter is welded to nozzle opening place that embeds stiffening plate;
(2) adapter place will be taken over the diameter decile, in the Along ent position, transversely strengthening arc plate will be set, and adapter place is reinforced the arc plate and need be embedded and take over innerly, and stretches out and takes over outer 100mm, reinforces in taking over and vertically uses Φ 273*15mm spool support between the arc plate;
Step 5: heat treatment and anti-deformation tool:
(1) for preventing that embedding the stiffening plate radian changes, embedding the inboard reinforcement of weld transverse arc of stiffening plate plate; For preventing embedding stiffening plate along its axis direction distortion, run through steel pipe along the stiffening plate axis between reinforcing transverse arc plate;
(2) adopt the interior heat treatment mode of stove to carry out bulk heat treatmet to the stiffening plate sub-assembly.
2. the embedded reinforced structure construction technology of container large opening according to claim 1 is characterized in that:
In step 2 (3), when slab is connected the skiving that carries out at the edge and processes, make slab connect the inclined-plane that the edge forms thickness-tapered, thickness of slab is poor during greater than 5mm, and the length that skiving is processed is poor greater than the thickness of slab of 3 times.
3. the embedded reinforced structure construction technology of container large opening according to claim 1 and 2 is characterized in that:
In step 5 (1), for preventing that embedding the stiffening plate radian changes at the inboard reinforcement of weld transverse arc of embedding stiffening plate plate, require to reinforce transverse arc plate radian consistent with the inboard radian of embedding stiffening plate, thickness is 30mm, Length Ratio embeds each long 100mm of the every side of stiffening plate, width adds 500mm for embedding the stiffening plate sagitta, and longitudinal pitch is 600-800mm; The reinforcing transverse arc plate of upper and lower both sides is not more than 100mm with the spacing that embeds the upper and lower port of stiffening plate;
Embed stiffening plate and reinforce between the transverse arc plate and take two-sided staggered discontinuous welding, weldering 100mm interval 100mm, leg height 20-35mm.
4. the embedded reinforced structure construction technology of container large opening according to claim 1 and 2 is characterized in that:
In step 5 (1), for preventing from embedding stiffening plate along its axis direction distortion, run through steel pipe along the stiffening plate axis reinforcing between the transverse arc plate, namely add three roads and rigidly fix steel pipe embedding position, stiffening plate inner arc side upper, middle and lower;
The steel pipe specification is Φ 273*15mm, steel pipe spacing 800mm, and the steel pipe center is the 200-350 millimeter to reinforcing transverse arc plate straight flange distance;
Be welded as the single face full weld between steel pipe and reinforcing transverse arc plate, the leg height is the minimum wall thickness (MINI W.) of steel pipe and gusset plate.
5. the embedded reinforced structure construction technology of container large opening according to claim 1 and 2 is characterized in that:
In step 5 (2), 620 ± 20 ℃ of heat treatment temperatures, constant temperature time 2.5h;
Programming rate: do not limit below 200 ℃, programming rate remained between 55-90 ℃/h in time more than 200 ℃, and temperature needs constant temperature 0.75 hour in the time of 200 ℃; When intensification is in 200 ℃～300 ℃ of scopes, programming rate should be controlled at as far as possible 70 ℃/below h;
Cooling rate: in the time of more than 300 ℃, cooling rate remains between 55-116 ℃/h; Cooling with stove below 300 ℃; Below 50 ℃, but blow-on is naturally cooling, and lifting is subsequently come out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061360.8A CN103128420B (en) | 2013-02-27 | 2013-02-27 | Construction technology of embedded reinforcing structure for large-orifice pipe of container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061360.8A CN103128420B (en) | 2013-02-27 | 2013-02-27 | Construction technology of embedded reinforcing structure for large-orifice pipe of container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103128420A true CN103128420A (en) | 2013-06-05 |
| CN103128420B CN103128420B (en) | 2015-05-20 |
Family
ID=48489220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061360.8A Active CN103128420B (en) | 2013-02-27 | 2013-02-27 | Construction technology of embedded reinforcing structure for large-orifice pipe of container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103128420B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646845A (en) * | 2014-12-18 | 2015-05-27 | 上海核电装备焊接及检测工程技术研究中心（筹） | Device and method for welding thick plate parts with small holes |
| CN105889892A (en) * | 2016-06-03 | 2016-08-24 | 中国船舶重工集团公司第七�三研究所 | Reinforcing structure for special-shaped large open hole of marine supercharged boiler |
| CN107807000A (en) * | 2016-09-27 | 2018-03-16 | 北京卫星环境工程研究所 | Horizontal vacuum shell with tilted conical joint pipe structure |
| CN110091037A (en) * | 2019-04-30 | 2019-08-06 | 江苏海力风电设备科技股份有限公司 | Offshore wind farm tower elastic support reinforced welding new process |
| CN111111579A (en) * | 2020-01-08 | 2020-05-08 | 张化机（苏州）重装有限公司 | Reinforcement plate structure |
| CN113815779A (en) * | 2021-10-22 | 2021-12-21 | 上海外高桥造船有限公司 | Opening structure |
| CN114055077A (en) * | 2021-10-21 | 2022-02-18 | 上海石化机械制造有限公司 | Construction method for large connecting pipe reinforcing section of second dehydrogenation reactor of styrene device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62153795A (en) * | 1985-12-27 | 1987-07-08 | 株式会社日立製作所 | Diaphragm floor structure of container for nuclear reactor |
| JP2004306084A (en) * | 2003-04-07 | 2004-11-04 | Nippon Steel Corp | Composite welding method of laser welding and arc welding |
| CN201534265U (en) * | 2009-07-24 | 2010-07-28 | 江阴金童石化管件有限公司 | Forged integral embedded type reinforcing branch pipe base |
| CN101862942A (en) * | 2010-06-25 | 2010-10-20 | 鞍山东方钢结构有限公司 | Production process method of pipe whip restraint steel structure of main power house of nuclear power station conventional island |
| CN202546101U (en) * | 2012-03-25 | 2012-11-21 | 杭州纽创工业设计有限公司 | Fixing mechanism for container and connecting tube of evaporator |
-
2013
- 2013-02-27 CN CN201310061360.8A patent/CN103128420B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62153795A (en) * | 1985-12-27 | 1987-07-08 | 株式会社日立製作所 | Diaphragm floor structure of container for nuclear reactor |
| JP2004306084A (en) * | 2003-04-07 | 2004-11-04 | Nippon Steel Corp | Composite welding method of laser welding and arc welding |
| CN201534265U (en) * | 2009-07-24 | 2010-07-28 | 江阴金童石化管件有限公司 | Forged integral embedded type reinforcing branch pipe base |
| CN101862942A (en) * | 2010-06-25 | 2010-10-20 | 鞍山东方钢结构有限公司 | Production process method of pipe whip restraint steel structure of main power house of nuclear power station conventional island |
| CN202546101U (en) * | 2012-03-25 | 2012-11-21 | 杭州纽创工业设计有限公司 | Fixing mechanism for container and connecting tube of evaporator |
Non-Patent Citations (2)
| Title |
|---|
| 卢文强: "大型箱罐制作安装施工工艺总结", 《安装》 * |
| 嵌入式接管与压力容器壳体的焊接: "谭秀安等", 《压力容器》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646845A (en) * | 2014-12-18 | 2015-05-27 | 上海核电装备焊接及检测工程技术研究中心（筹） | Device and method for welding thick plate parts with small holes |
| CN104646845B (en) * | 2014-12-18 | 2016-06-22 | 上海核电装备焊接及检测工程技术研究中心（筹） | A kind of welder with aperture thick-plate parts and welding method |
| CN105889892A (en) * | 2016-06-03 | 2016-08-24 | 中国船舶重工集团公司第七�三研究所 | Reinforcing structure for special-shaped large open hole of marine supercharged boiler |
| CN107807000A (en) * | 2016-09-27 | 2018-03-16 | 北京卫星环境工程研究所 | Horizontal vacuum shell with tilted conical joint pipe structure |
| CN107807000B (en) * | 2016-09-27 | 2019-08-06 | 北京卫星环境工程研究所 | Horizontal vacuum shell with tilted conical joint pipe structure |
| CN110091037A (en) * | 2019-04-30 | 2019-08-06 | 江苏海力风电设备科技股份有限公司 | Offshore wind farm tower elastic support reinforced welding new process |
| CN111111579A (en) * | 2020-01-08 | 2020-05-08 | 张化机（苏州）重装有限公司 | Reinforcement plate structure |
| CN114055077A (en) * | 2021-10-21 | 2022-02-18 | 上海石化机械制造有限公司 | Construction method for large connecting pipe reinforcing section of second dehydrogenation reactor of styrene device |
| CN113815779A (en) * | 2021-10-22 | 2021-12-21 | 上海外高桥造船有限公司 | Opening structure |
| CN113815779B (en) * | 2021-10-22 | 2022-12-13 | 上海外高桥造船有限公司 | Opening structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103128420B (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103128420B (en) | Construction technology of embedded reinforcing structure for large-orifice pipe of container | |
| CN110076259A (en) | The processing method of airborne pencil rocket burning chamber shell | |
| KR101007848B1 (en) | Dual Cooled Fuel with a Ring-Shaped Plug And Manufacturing Method of the Same | |
| EP3803175B1 (en) | Pipe component made of a metallic material | |
| CN105057854A (en) | Stainless steel casting surface overlaying method for controlling fusion depth | |
| CN105014293A (en) | Welding lap joint structure and method for thin-wall pipes | |
| CN104889581A (en) | Deformation preventing process for welding dense connecting tubes on thin-wall barrel body | |
| CN102773398A (en) | Method for forging slender and thick-walled pipe fittings | |
| PL227290B1 (en) | Method for automatic submerged arc welding on the cone of the insert of the nozzle of large size | |
| CN102145438B (en) | Assembling method of doorframe of wind power tower | |
| JP2016151481A (en) | Core barrel manufacturing method and core barrel | |
| CN203202482U (en) | Anti-deformation structure for welding thin-walled cylinder with large-diameter dense discharge pipe | |
| CN203728889U (en) | Large ring-shaped workpiece carburizing and quenching deformation control process equipment | |
| JP6060841B2 (en) | Manufacturing method of feed injector | |
| CN102601487B (en) | Method for welding water outlet nozzles on nuclear power hanging basket | |
| JP2017101643A (en) | Gasoline direct-injection rail | |
| CN109514051B (en) | Pipeline welding method | |
| CN206898580U (en) | A kind of butt welding tube sheet of layer containing Explosion composite and there is its heat exchanger | |
| CN209084264U (en) | A kind of combined type electric melting pipe fittings | |
| CN105674564A (en) | Spirally-welded water tank liner and manufacture method thereof | |
| CN208169709U (en) | A kind of cannula structure that can reduce the temperature difference | |
| CN107160026A (en) | A kind of butt welding tube sheet of layer containing Explosion composite and the heat exchanger with it | |
| CN207139127U (en) | A kind of open-celled structure on major-diameter thick-wall container casing | |
| CN107662060B (en) | Method for treating thermocouple guide pipe leakage in reactor core measurement system and welding bracket | |
| CN207213451U (en) | A kind of double-layer wear-resistant pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |