CN206882975U - A kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam - Google Patents
A kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam Download PDFInfo
- Publication number
- CN206882975U CN206882975U CN201720856852.XU CN201720856852U CN206882975U CN 206882975 U CN206882975 U CN 206882975U CN 201720856852 U CN201720856852 U CN 201720856852U CN 206882975 U CN206882975 U CN 206882975U
- Authority
- CN
- China
- Prior art keywords
- curved pipe
- welding
- arc frame
- pipe
- proximity switch
- 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.)
- Active
Links
Landscapes
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam, including mobile base, arc frame is installed in mobile base, a curved pipe is provided with arc frame, one drive mechanism for being used to drive curved pipe to rotate is installed on arc frame, the nozzle of multiple uniform intervals arrangements is installed on the inside of curved pipe, curved pipe is connected by a flexible pipe with an acetylene cylinder.The utility model can uniformly heat to penstock girth joint, ensure the welding quality of penstock.
Description
Technical field
It the utility model is related to a kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam.
Background technology
Reached its maturity with the development in power station, the current country emerges large quantities of high water head conventional hydropower stations and the storage that draws water
Can power station, in You Wu East Germany power station, white crane beach power station, Jixi hydroenergy storage station and Jinzhai County's hydroenergy storage station built,
The design pressure that such power station diversion system penstock is born is larger, uses 600MPa and 800MPa grade high-strength degree more
Steel, penstock wall thickness the largest of about 70mm, high strength steel have a larger low temperature cool attenuation, weld seam need to be carried out during welding
Preheating and rear heat.
In order to reduce the welding capacity of erecting bed and ensure welding quality, unit in charge of construction uses two in processing factory more
Individual design single-unit forms a big delivery unit to be installed, and this just needs the welding that girth joint is carried out in processing factory,
The general welding that the all-position welding of girth joint is converted to downhand position using roller support and rotation pressure steel pipe, weld seam side
Method uses efficient Lincoln weld.
It should be preheated according to material property before high-strength steel and thicker low-alloy steel boxing seam weld, at present, generally be used
The method of manual warm-up, operating personnel's hand hold flame gun, and the flame of flame gun alignment circumferential weld is heated, this method for
The pre-heat effect of least a portion of path penstock is preferable, but for the bigger penstock of diameter, its circumferential weld span is got over
Greatly, there is very big inhomogeneities in pre-heat effect, so as to influence follow-up welding operation and welding quality.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of power station high intensity pressure steel pipe circular seam that is applied to and welded
The preheating device connect, penstock girth joint can uniformly be heated, ensure the welding quality of penstock.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：One kind is applied to power station high-strength press
The preheating device of power steel pipe circular seam welding, including mobile base, arc frame is provided with mobile base, is provided with arc frame
A piece curved pipe, a drive mechanism for being used to drive curved pipe to rotate is installed on arc frame, installed on the inside of curved pipe
There is the nozzle of multiple uniform intervals arrangements, curved pipe is connected by a flexible pipe with an acetylene cylinder.
The drive mechanism includes power part and guide part,
The power part includes being arranged on the rack on the outside of curved pipe, the force-transmitting gear on arc frame and driving electricity
Machine, is provided with drive gear in motor rotating shaft, and rack, force-transmitting gear and drive gear engage successively；
The guide part includes two pieces of arcs for being separately fixed at curved pipe both sides and is fixedly mounted on arc frame
Multigroup guidance set, arc move in guidance set, and the guidance set includes two block gaps and sets guide pad, at two pieces
A deep-slotted chip breaker is offered on guide pad opposing end surface respectively, the curved pipe is between two pieces of guide pads, curved pipe both sides
Arc is located in two deep-slotted chip breakers in guidance set.
A piece vertical rod is installed in the mobile base, a swivel joint, swivel joint are fixed with vertical rod upper end
On the flexible pipe of connection.
Also include PLC, the first proximity switch installed in arc frame upper end and the installed in arc frame lower end
Two proximity switches, the first proximity switch and the second proximity switch are used to detect curved pipe shift position, the first proximity switch and the
The signal that two proximity switches detect is transferred to PLC, PLC control motor.
The beneficial effects of the utility model are：By each nozzle water outlet flame to penstock circumferential weld and then barbecue, and
During barbecue, drive mechanism driving curved pipe rotates up and down, realizes the uniform heating to penstock circumferential weld, effectively avoids steel
Pipe ring seam has influence on welding quality because local temperature is too high, and apparatus structure is simple, is easy to make and repairs, cost is cheap.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is main structure diagram of the present utility model,
Fig. 2 is the cross-sectional view at A-A in Fig. 1,
Fig. 3 is partial enlargement structural representation of the present utility model,
Connection relationship diagrams of the Fig. 4 between each electricity piece of the utility model,
Fig. 5 be the utility model in the main structure diagram used,
Fig. 6 is the overlooking the structure diagram of the utility model when in use.
In figure：Arc frame 1, curved pipe 2, drive mechanism 3, acetylene cylinder 4, mobile base 5, cross submerged arc welding machine 7, steel pipe
8th, adjustable welded drum frame 9, bend pipe 11, nozzle 21, guide pad 31, arc 32, drive gear 33, rack 34, motor
35th, force-transmitting gear 36, deep-slotted chip breaker 37, flexible pipe 41, swivel joint 42, vertical rod 43, the first proximity switch 61, the second proximity switch
62。
Embodiment
As shown in Fig. 1 to 4, a kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam, including move
Dynamic base 5, is provided with arc frame 1 in mobile base 5, is provided with a curved pipe 2 in arc frame 1, is installed on arc frame 1
There is a drive mechanism 3 for being used to drive curved pipe 2 to rotate, the spray of multiple uniform intervals arrangements is installed in the inner side of curved pipe 2
Mouth 21, curved pipe 2 are connected by a flexible pipe 41 with an acetylene cylinder 4, and the medial surface of arc frame 1 is made up of two bend pipes 11,
The flame that each nozzle 21 sprays is from spraying to penstock 8 between two bend pipes 11.
The drive mechanism 3 includes power part and guide part,
The power part includes being arranged on the rack 34 in the outside of curved pipe 2, the and of force-transmitting gear 36 on arc frame 1
Motor 35, is provided with drive gear 33 in the rotating shaft of motor 35, rack 34, force-transmitting gear 36 and drive gear 33 according to
Secondary engagement；After motor 35 starts, force-transmitting gear 36 is driven to rotate by drive gear 33, force-transmitting gear 36 drives rack 34 to move
It is dynamic.
The guide part includes two pieces of arcs 32 for being separately fixed at the both sides of curved pipe 2 and is fixedly mounted on arc frame 1
On multigroup guidance set, arc 32 moves in guidance set, and the guidance set includes two block gaps and sets guide pad
31, offer a deep-slotted chip breaker 37 respectively on two pieces of opposing end surfaces of guide pad 31, the curved pipe 2 is located at two pieces of guide pads 31
Between, the both sides arc 32 of curved pipe 2 is located in two deep-slotted chip breakers 37 in guidance set.
A piece vertical rod 43 is installed in the mobile base 5, a swivel joint 42 is fixed with the upper end of vertical rod 43, is revolved
On the flexible pipe 41 that adapter 42 connects.When curved pipe 2 rotates, flexible pipe 41 rotates around swivel joint 42, soft to reduce
Pipe 41 disturbs, and extends the service life of flexible pipe 41.
Also include PLC, the first proximity switch 61 installed in the upper end of arc frame 1 and installed in the lower end of arc frame 1
The second proximity switch 62, the first proximity switch 61 and the second proximity switch 62 be used to detect the shift position of curved pipe 2, and first connects
The signal that the nearly proximity switch 62 of switch 61 and second detects is transferred to PLC, PLC control motor 35.
When the position of the first proximity switch 61 is moved in the upper end of curved pipe 2, the first proximity switch 61 transmits a signal to PLC,
PLC controlled motor inverts, and is rotated down curved pipe 2, when curved pipe 2 rotates the position of the first proximity switch 61, PLC
Controller controlled motor rotates forward, and rotates up arc, so repeatedly, realizes that the automatic of curved pipe 2 rotates upwardly and downwardly.
Application method of the present utility model is：As it can be seen in figures 5 and 6, when being preheated to the circumferential weld 81 of penstock 8, can
To use two preheating devices, penstock 8 is hung on each adjustable welded drum frame 9 first by crane, then worker
Two preheating devices are pushed to the both sides of steel pipe circular seam 81, cross submerged arc welding machine 7 is moved between two preheating devices
On circumferential weld 81, each acetylene cylinder 4 is being opened, each nozzle 21 is being lighted and starts each motor 35, utilize what is rotated up and down
Flame is roasted to circumferential weld 81, while can also start adjustable welded drum frame 9 makes penstock 8 slowly rotate, and works as temperature
After reaching preset temperature, circumferential weld 81 is welded by cross submerged arc welding machine 7.
Claims (4)
1. a kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam, including mobile base（5）, in movement
Base（5）On arc frame is installed（1）, it is characterised in that：In arc frame（1）Inside it is provided with a curved pipe（2）, in arc frame
（1）On be provided with one be used for drive curved pipe（2）The drive mechanism of rotation（3）, in curved pipe（2）Inner side is provided with multiple equal
The even nozzle being intervally arranged（21）, curved pipe（2）Pass through a flexible pipe（41）With an acetylene cylinder（4）Connection.
2. a kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam according to claim 1, its
It is characterised by：The drive mechanism（3）Including power part and guide part,
The power part includes being arranged on curved pipe（2）The rack in outside（34）, installed in arc frame（1）On force-transmitting gear
（36）And motor（35）, in motor（35）Drive gear is installed in rotating shaft（33）, rack（34）, force-transmitting gear
（36）And drive gear（33）Engage successively；
The guide part is separately fixed at curved pipe including two pieces（2）The arc of both sides（32）Be fixedly mounted on arc frame
（1）On multigroup guidance set, arc（32）Moved in guidance set, the guidance set, which includes the setting of two block gaps, leads
To block（31）, in two pieces of guide pads（31）A deep-slotted chip breaker is offered on opposing end surface respectively（37）, the curved pipe（2）It is located at
Two pieces of guide pads（31）Between, curved pipe（2）Both sides arc（32）Two deep-slotted chip breakers in guidance set（37）It is interior.
3. a kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam according to claim 1, its
It is characterised by：In the mobile base（5）On a vertical rod is installed（43）, in vertical rod（43）Upper end is fixed with a rotation and connect
Head（42）, swivel joint（42）The flexible pipe of connection（41）On.
4. a kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam according to claim 2, its
It is characterised by：Also include PLC, installed in arc frame（1）First proximity switch of upper end（61）With installed in arc frame
（1）Second proximity switch of lower end（62）, the first proximity switch（61）With the second proximity switch（62）For detecting curved pipe（2）
Shift position, the first proximity switch（61）With the second proximity switch（62）The signal detected is transferred to PLC, PLC controls
Device processed controls motor（35）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856852.XU CN206882975U (en) | 2017-07-14 | 2017-07-14 | A kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856852.XU CN206882975U (en) | 2017-07-14 | 2017-07-14 | A kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206882975U true CN206882975U (en) | 2018-01-16 |
Family
ID=61295757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720856852.XU Active CN206882975U (en) | 2017-07-14 | 2017-07-14 | A kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206882975U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163841A (en) * | 2018-10-08 | 2019-01-08 | 广州达意隆包装机械股份有限公司 | Jetting pressure detection device and sterile filling production system |
| CN111421294A (en) * | 2020-04-29 | 2020-07-17 | 国网河南省电力公司电力科学研究院 | Steel pipe welding device |
| CN114147324A (en) * | 2021-11-10 | 2022-03-08 | 大连船舶重工集团有限公司 | High-efficiency welding method for large perforated flange and thick-wall pipe |
-
2017
- 2017-07-14 CN CN201720856852.XU patent/CN206882975U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163841A (en) * | 2018-10-08 | 2019-01-08 | 广州达意隆包装机械股份有限公司 | Jetting pressure detection device and sterile filling production system |
| CN109163841B (en) * | 2018-10-08 | 2023-11-21 | 广州达意隆包装机械股份有限公司 | Spray stamping force detection device and sterile filling production system |
| CN111421294A (en) * | 2020-04-29 | 2020-07-17 | 国网河南省电力公司电力科学研究院 | Steel pipe welding device |
| CN114147324A (en) * | 2021-11-10 | 2022-03-08 | 大连船舶重工集团有限公司 | High-efficiency welding method for large perforated flange and thick-wall pipe |
| CN114147324B (en) * | 2021-11-10 | 2023-10-24 | 大连船舶重工集团有限公司 | High-efficiency welding method for large-sized perforated flange and thick-wall pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206882975U (en) | A kind of preheating device suitable for the welding of power station high intensity pressure steel pipe circular seam | |
| CN102350567B (en) | TIG (Tungsten Inert Gas) automatic overlay-welding device for all circumferential positions on inner surface of 90-degree bent pipe and welding method thereof | |
| CN102825368B (en) | Flange sealing trough inner surface hoop all positon TIG automatic bead welding equipment and welding method thereof | |
| CN211966280U (en) | Device capable of realizing automatic welding of stiffening ring | |
| CN105945501B (en) | A kind of pipe fitting angle welding equipment | |
| CN202752730U (en) | Ring-direction all-position tungsten inert gas (TIG) automatic surfacing equipment for inner surface of flange seal groove | |
| CN108422061A (en) | A kind of steel-pipe welding fixing device | |
| CN102198560A (en) | Oval seam automatic welding operation machine | |
| CN202097488U (en) | Automatic welding operation machine for elliptical seams | |
| CN204686250U (en) | A kind of pipe fitting ring longitudinal seam automatic welding machine | |
| CN109719437A (en) | Automatic welding machine | |
| CN206405573U (en) | Boiler pipe fitting girth joint automatic submerged-arc welding system | |
| CN205600152U (en) | Rear axle lid welds special plane | |
| CN106334891A (en) | Automatic welding device for inner ring welding seam | |
| CN205852032U (en) | A kind of automatic welding device of scaffold upright rod | |
| CN201603945U (en) | Resistance-type double-sealing-head welding machine | |
| CN206632497U (en) | A kind of vertical circumferential weld automatic TIG welding machine | |
| CN108655219A (en) | A kind of numerical control hydraulic veneer reeling machine | |
| CN206122855U (en) | Soldering rotary device | |
| CN203875460U (en) | Special argon arc welding machine for circular pipes | |
| CN205520275U (en) | Rotary platform is used in flange welding | |
| CN202015912U (en) | Automatic welding device with flange reinforcing ribs | |
| CN208496023U (en) | A kind of fixed device of steel-pipe welding | |
| CN103433602B (en) | A kind of automatic submerged arc welding machine | |
| CN205464735U (en) | Oxygen rifle shower nozzle copper steel automatic weld equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |