CN110681966A - Pipeline welding heating device, welding device and method - Google Patents
Pipeline welding heating device, welding device and method Download PDFInfo
- Publication number
- CN110681966A CN110681966A CN201910996029.2A CN201910996029A CN110681966A CN 110681966 A CN110681966 A CN 110681966A CN 201910996029 A CN201910996029 A CN 201910996029A CN 110681966 A CN110681966 A CN 110681966A
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- pipeline
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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
- B23K9/32—Accessories
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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
- B23K9/18—Submerged-arc welding
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- Manufacturing Of Electrical Connectors (AREA)
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Abstract
The invention relates to a pipeline welding heating device, a welding device and a method, which comprises a circular sliding contact line, wherein the sliding contact line is coaxially arranged with a pipeline to be welded, the pipeline to be welded can penetrate through the sliding contact line, the sliding contact line is fixedly connected with a bracket, the bracket is used for fixing the sliding contact line, the sliding contact line is connected with a current collector, the current collector can slide along the sliding contact line, the current collector is fixedly connected with a connecting plate, the connecting plate is fixedly connected with the pipeline to be welded, the pipeline to be welded rotates, the current collector can be driven to move along the sliding contact line through the connecting plate, the current collector is connected with a heater through a heat treatment lead, the heater is fixed on the pipeline to be welded, the pipeline to be welded is heated, a connector is arranged at the joint of the sliding contact device, and is connected with a heat treatment machine, by using the heating device, the heating device, the welding quality is high.
Description
Technical Field
The invention relates to the technical field of welding equipment, in particular to a pipeline welding heating device, a welding device and a welding method.
Background
The pipeline rotates along with a machine tool in the automatic welding process of the power station pressure-bearing pipeline, for the purpose of electrically heating and preheating the pipeline before welding, equipment tools used in the traditional electric heating and preheating method cannot rotate along with the pipeline, so that electric heating and preheating cannot be continuously carried out during automatic submerged arc welding of the pipeline, and therefore, the traditional electric heating and preheating method can only be used for preheating by adopting flame or preheating by adopting electric heating before welding (after the temperature is reached by preheating, heating power lines, temperature measuring lines and the like cannot be completely removed along with rotation of the pipeline when welding is started), and the required preheating temperature of the pipeline is kept by means of the arc temperature during welding.
The inventor finds that the prior art can not continuously heat the workpiece to be welded, can not accurately control the preheating temperature, and can not meet the regulation specification requirements, particularly certain materials sensitive to the preheating temperature, so that the defect generation probability is greatly increased.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a pipeline welding and heating tool which can continuously heat a pipeline to be welded and ensure the welding quality of the pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a pipeline welding heating device, includes the annular wiping line of circle, the wiping line be used for with treat the coaxial setting of welded pipe, treat that welded pipe can pass the wiping line, wiping line and support fixed connection, the support is used for fixing the wiping line, the wiping line is connected with the current collector, and the current collector can slide along the wiping line, current collector and connecting plate fixed connection, the connecting plate be used for with treat welded pipe fixed connection, treat that welded pipe rotates, can drive the current collector along the wiping line motion through the connecting plate, the current collector passes through the thermal treatment wire and is connected with the heater, the heater is used for fixing on treating welded pipe, treats welded pipe and heats, the junction department of wiping ware is equipped with the connector, the connector is connected with the heat treatment machine.
Furthermore, the current collector is also connected with a thermocouple through a compensation lead, and the thermocouple is used for being fixed on a pipeline to be welded and detecting the temperature of the pipeline to be welded.
Furthermore, the support is a circular ring-shaped plate which is coaxial with the sliding contact line, the support is fixedly connected with the sliding contact line through a plurality of fixing pieces, and the fixing pieces are uniformly distributed along the circumference of the support.
Further, the mounting includes the fixed plate, fixed plate and annular plate fixed connection, and fixed plate fixedly connected with articulates the frame, articulate the frame and have the cavity that the wiping line passed, the wiping line passes articulate the frame, utilize and articulate the frame and support fixedly.
Further, the heater adopts a resistance ceramic heater.
Further, the pipeline welding heating device also comprises a heat preservation blanket, and the heat preservation blanket can wrap the resistance ceramic heater.
Furthermore, the connecting plate adopts an L-shaped plate, a magnet is fixed on the connecting plate, and the magnet is used for fixedly connecting the connecting plate with the pipeline to be welded.
Further, the support is connected with a lifting mechanism, and the lifting mechanism is used for adjusting the height of the support.
The invention also discloses a pipeline welding device which comprises an automatic pipeline welding machine tool and two sets of pipeline welding heating devices.
The invention also discloses a working method of the pipeline welding device, which comprises the following steps: the heat treatment machine is started, the heat treatment machine drives the heater to work through the sliding contact line, the current collector and the heat treatment lead to preheat the pipeline, an automatic pipeline welding machine is started after the pipeline reaches a set temperature to drive the pipeline to rotate for welding, the pipeline can drive the current collector to move synchronously with the pipeline in the welding process, and the heat treatment machine keeps the connection state with the heater to realize continuous heating in the pipeline welding process.
The invention has the beneficial effects that:
1. by adopting the heating device, the current collector can synchronously rotate on the sliding contactor and the pipeline seat to be welded through the arrangement of the sliding contactor and the current collector, so that the heat treatment machine and the heater can always keep a connection state, the work of the heater is ensured, the continuous heating of the pipeline to be welded is realized, the temperature requirement during the pipeline welding is ensured, and the welding quality is good.
2. The heating device provided by the invention is provided with the thermocouple, the temperature of the pipeline can be acquired in real time, the power of the heat treatment machine is further adjusted, the heating power is further adjusted, the heating and temperature measurement are synchronously carried out, the temperature measurement and control can be accurately carried out, the heating power is adjusted at any time, the preheating temperature of the pipeline is ensured, and the welding quality is ensured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the overall structure of a heating apparatus according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a stent structure according to example 1 of the present invention;
FIG. 3 is a schematic view of a fixing member according to embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of a connecting plate structure according to embodiment 1 of the present invention;
FIG. 5 is a schematic view showing a state of use of a heating apparatus according to embodiment 1 of the present invention;
the device comprises a sliding contact line 1, a current collector 2, a support 3, a fixing piece 4, a fixing plate 4-1, a stud 4-2, a first compression nut 4-3, a hanging frame 4-4, a second compression nut 4-5, a connecting plate 5-1, a first connecting plate 5-2, a second connecting plate 5-3, a boss 5-3, a resistance ceramic heater 6, a heat treatment lead 7, a connector 8, a heat treatment machine 9, a compensation lead 10, a thermocouple 11, an electric blanket 12, a lifting mechanism 13, a pipeline 14, a wire clamp 15 and a magnet 16.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Just as the background art introduces, current preheating device for pipeline welding can't carry out synchronous revolution along with the pipeline, can't last the heating to the pipeline in the welding process, appears welding defect easily, to above-mentioned problem, this application has provided a pipeline welding heating device.
In example 1, which is a typical embodiment of the present application, as shown in fig. 1 to 4, a pipeline welding heating device includes a circular sliding contact line 1 which is used for being coaxially disposed with a pipeline to be welded, the sliding contact line adopts a multi-pole tubular safety sliding contact line, and the inner diameter of the sliding contact line is larger than the outer diameter of the largest-sized pipeline to be welded, so that the heating device meets the welding use requirements of pipelines with different specifications.
The trolley wire is connected with a current collector 2 in a sliding mode, and the current collector can freely slide along the trolley wire.
The trolley line and the current collector adopt the existing structure, and the specific structure is not described in detail herein.
The trolley line is fixedly connected with the support 3, the support is a circular ring-shaped plate which is coaxial with the trolley line, a plurality of fixing pieces 4 are uniformly fixed on the inner side surface of the circular ring-shaped plate along the circumference, the fixing pieces are connected with the trolley line, and the trolley line is fixed on the support through the fixing pieces.
The support comprises a fixing plate 4-1, a stud 4-2 penetrates through the fixing plate, one end of the stud penetrates through the fixing plate and the circular ring-shaped plate, stud column sections located on two sides of the fixing plate and the circular ring-shaped plate are in threaded connection with first compression nuts 4-3, the two first compression nuts can be compressed on the inner side face of the fixing plate and the outer side face of the circular ring-shaped plate, and the fixing of the fixing plate and the circular ring-shaped plate is achieved.
The other end of the stud is fixedly connected with a hanging frame 4-4, the hanging frame is formed by welding four steel plates, the four steel plates form a cavity for the trolley line to pass through, the side face of the trolley line can be attached to the inner side face of each steel plate and the end face of the stud, and the trolley line is fixed on the support through the hanging frames.
The stud penetrates through the steel plate located on the outermost side, two second compression nuts 4-5 are in threaded connection with stud column sections on two sides of the steel plate, and the two second compression nuts compress the inner side surface and the outer side surface of the steel plate, so that the fixed connection between the hanging frame and the stud is realized.
The steel plate close to one side of the sliding contact line and the circle center of the support is provided with a notch, and the current collector can pass through the steel plate through the opening, so that the hanging and connecting support is prevented from obstructing the motion of the current collector.
The inner side end face of the current collector is fixedly connected with a connecting plate 5, the connecting plate is an L-shaped plate and comprises a first connecting plate 5-1 and a second connecting plate 5-2 which are perpendicular to each other and integrally connected, a boss 5-3 is arranged at the top end of the first connecting plate and detachably connected with the current collector through a bolt, the second connecting plate is an arc plate matched with the shape of a pipeline to be welded, an arc-shaped magnet 16 is fixed at the bottom end face of the second connecting plate, and the connecting plate can be adsorbed and fixed with the pipeline to be welded through the magnet.
In this embodiment, the connecting plate can set up the not unidimensional connecting plate of a series of specifications according to the diameter of waiting to weld the pipeline, can satisfy the absorption fixed requirement of connecting plate and different specification pipelines.
When the pipeline rotates, the current collector can be driven by the connecting plate to move synchronously along the sliding contact device.
The current collector is connected with a heater through a heat treatment lead 7, the heater adopts a resistance ceramic heater 6, the resistance ceramic heater can be wrapped on the peripheral surface of a pipeline to be welded, and two ends of the heat treatment lead are respectively fixed on the resistance ceramic heater and binding posts of the current collector.
The length of the heat treatment wire is 2-3 meters and can be determined according to the actual working condition of the site.
The connector 8 is arranged at the joint of the sliding contactor, the connector can be an existing connector for the sliding contactor, the specific structure of the connector is not described in detail, and the connector is connected with a heat treatment machine 9.
The heat treatment machine can drive the ceramic heater to work through the connector, the sliding contact device, the current collector and the heat treatment lead wire to heat the pipeline.
The current collector is also connected with a thermocouple 11 through a compensation lead 10, two ends of the compensation lead are fixed on the current collector and a binding post of the thermocouple, and the thermocouple is used for being fixed on a pipeline to be welded and connected with a temperature controller for detecting the temperature of the pipeline in real time.
The length of the compensation lead is 2-3 meters and can be determined according to the actual working condition of the site.
The pipeline welding heating device further comprises an electric blanket 12, and the electric blanket is used for wrapping the periphery of the ceramic heater to keep the temperature of the ceramic heater and prevent excessive heat loss.
The support is connected with elevating system 13, and elevating system can adjust the height of support and wiping line, is convenient for highly carry out the adaptability according to the pipeline on automatic welder.
The lifting mechanism can adopt a hydraulic lifting mechanism or a mechanical lifting mechanism, the lifting mechanism can adopt the existing lifting mechanism, and the specific structure of the lifting mechanism is not described in detail.
Example 2:
the embodiment discloses a pipeline welding device, which comprises an automatic pipeline welding machine tool and two sets of pipeline welding heating devices in the embodiment 1, wherein sliding contact lines and supports of the two sets of pipeline welding heating devices are respectively arranged at the head end and the tail end of a pipeline to be welded, the sliding contact lines and the supports are coaxially arranged with the pipeline to be welded, and when the pipeline welding device is used, the head end and the tail end of the pipeline penetrate through the sliding contact lines.
Example 3:
the embodiment discloses a working method of a pipeline welding device, which comprises the following steps: as shown in fig. 5, a pipeline 14 is placed on an automatic welding machine, a pipeline welding heating device is placed on the automatic welding machine, sliding contact lines and supports of the two pipeline welding heating devices are arranged at the head end and the tail end of the pipeline, the head end and the tail end of the pipeline penetrate through the sliding contact lines, a proper connecting plate is selected to be connected with a current collector, the connecting plate is adsorbed and fixed with the pipeline to be welded through a magnet, a thermocouple is bound and fixed on the pipeline to be welded through iron wires, the thermocouple is 20mm-30mm away from a groove at the end part of the pipeline, then a resistance ceramic heater is wrapped on the outer peripheral surface of the end part of the pipeline, the thermocouple extends between the resistance ceramic heater and the pipeline, namely the thermocouple extends into a heating area of the resistance ceramic heater, and after the resistance ceramic heater is installed, a heat insulation blanket is wrapped on the outer periphery of the resistance ceramic heater to.
Then, the two ends of the heat treatment lead are fixedly connected with the current collector and the binding post of the resistance ceramic heater, the two ends of the compensation lead are fixedly connected with the current collector and the two ends of the thermocouple binding post, and the heat treatment lead and the compensation lead are fixed by a plurality of adhesive tapes, so that the heat treatment lead and the compensation lead are attached to the outer pipe wall of the pipeline and the connecting plate, and the heat treatment lead and the compensation lead are prevented from being extruded and wound in the rotating process of the pipeline.
The heat treatment wire and the compensation wire can also be fixed by the wire clamp 15 provided with the magnet, the existing wire clamp can be adopted as the wire clamp, the magnet is fixedly arranged in the wire clamp, and for the fixing mode of the heat treatment wire and the compensation wire, the skilled person can select the fixing mode according to the actual working condition, and the detailed description is omitted.
After the pipeline is connected with the pipeline welding heating device, the heat treatment machine is started, the heat treatment machine drives the resistance ceramic heater to work through the connector, the sliding contact line, the current collector and the heat treatment lead, the pipeline is preheated, and the thermocouple can collect the temperature of the pipeline in real time and display the temperature on the temperature controller connected with the thermocouple. And after the temperature controller displays that the temperature reaches the set temperature for half an hour, starting the automatic pipeline welding machine tool to work, rotating the pipeline to start welding, driving the current collector to move along the sliding contact line through the connecting plate in the rotating process, and driving the resistance ceramic heater to work by the heat treatment machine all the time to continuously heat the pipeline.
The thermocouple can gather the temperature of pipeline in real time, and operating personnel adjusts the power size of heat treatment machine according to the temperature of gathering, and then makes pipeline temperature maintain in the temperature range of setting for, guarantees welding quality.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. The utility model provides a pipeline welding heating device, its characterized in that, including the annular wiping line of circle, the wiping line is used for with treat the coaxial setting of welded pipe, treat that welded pipe can pass the wiping line, wiping line and support fixed connection, the support is used for fixing the wiping line, the wiping line is connected with the current collector, and the current collector can slide along the wiping line, current collector and connecting plate fixed connection, the connecting plate be used for with treat welded pipe fixed connection, treat that welded pipe rotates, can drive the current collector along the wiping line motion through the connecting plate, the current collector passes through thermal treatment wire and heater connection, the heater is used for fixing on treating welded pipe, treats welded pipe and heats, the junction department of wiping ware is equipped with the connector, the connector is connected with the heat treatment machine.
2. A pipe welding heating apparatus as claimed in claim 1, wherein said current collector is further connected to a thermocouple through a compensating lead, said thermocouple being adapted to be fixed to a pipe to be welded to detect the temperature of the pipe to be welded.
3. The pipe welding heating apparatus of claim 1, wherein the support is a circular ring plate disposed coaxially with the trolley line, the support is fixedly connected to the trolley line by a plurality of fixing members, and the fixing members are uniformly distributed along a circumference of the support.
4. A pipe welding heating apparatus as claimed in claim 3, wherein said fixing member comprises a fixing plate fixedly connected to said annular plate, and a hanging frame fixedly connected to said fixing plate, said hanging frame having a cavity through which said trolley wire passes, said trolley wire passing through said hanging frame being supported and fixed by said hanging frame.
5. A pipe welding heating apparatus as claimed in claim 1, wherein said heater is a resistance ceramic heater.
6. The pipe welding heating apparatus of claim 5, further comprising an insulation blanket capable of encasing the resistive ceramic heater.
7. A pipe welding heating apparatus as claimed in claim 1, wherein said connecting plate is an L-shaped plate, and said connecting plate is fixed with a magnet for fixedly connecting the connecting plate with the pipe to be welded.
8. The pipe welding heating apparatus of claim 1, wherein the bracket is coupled to a lifting mechanism, the lifting mechanism being configured to adjust a height of the bracket.
9. A pipeline welding device, which is characterized by comprising an automatic pipeline welding machine tool and two sets of pipeline welding heating devices according to any one of claims 1 to 8.
10. A working method of a pipeline welding device as claimed in claim 9, wherein the sliding contact lines and the supports of the two pipeline welding heating devices are arranged at the head end and the tail end of the pipeline to be welded and are coaxially arranged with the pipeline to be welded, the head end and the tail end of the pipeline to be welded penetrate through the sliding contact lines, the heater is fixed on the pipeline to be welded, the connecting plate is fixedly connected with the pipeline to be welded, the heat treatment machine is started, the heat treatment machine drives the heater to work through the sliding contact lines, the current collectors and the heat treatment lead wires, the pipeline is preheated, after the temperature of the pipeline reaches a set temperature, the automatic pipeline welding machine is started to drive the pipeline to rotate for welding, the pipeline can drive the current collectors to move synchronously along the sliding contact lines in the welding process, the heat treatment machine keeps the connection state with the heater, and continuous heating in the pipeline welding process is achieved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996029.2A CN110681966A (en) | 2019-10-18 | 2019-10-18 | Pipeline welding heating device, welding device and method |
| PCT/CN2020/121037 WO2021073558A1 (en) | 2019-10-18 | 2020-10-15 | Device for heating pipe to be welded, and welding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996029.2A CN110681966A (en) | 2019-10-18 | 2019-10-18 | Pipeline welding heating device, welding device and method |
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| Publication Number | Publication Date |
|---|---|
| CN110681966A true CN110681966A (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910996029.2A Pending CN110681966A (en) | 2019-10-18 | 2019-10-18 | Pipeline welding heating device, welding device and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110681966A (en) |
| WO (1) | WO2021073558A1 (en) |
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| CN111496354A (en) * | 2020-05-09 | 2020-08-07 | 曹瑞 | Spiral submerged arc welded pipe welding seam protection device |
| CN111992855A (en) * | 2020-09-02 | 2020-11-27 | 中国电建集团山东电力建设第一工程有限公司 | Welding and combined heat treatment method for martensite heat-resistant steel G115 large-diameter thick-wall pipeline |
| CN112195333A (en) * | 2020-10-23 | 2021-01-08 | 华能安源发电有限责任公司 | Method for improving on-site postweld heat treatment quality of P92 high-temperature pipeline |
| WO2021073558A1 (en) * | 2019-10-18 | 2021-04-22 | 中国电建集团山东电力建设第一工程有限公司 | Device for heating pipe to be welded, and welding device and method |
| CN113400028A (en) * | 2021-07-07 | 2021-09-17 | 江西剑安消防科技有限责任公司 | Header pipe cutting and welding integrated device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021073558A1 (en) * | 2019-10-18 | 2021-04-22 | 中国电建集团山东电力建设第一工程有限公司 | Device for heating pipe to be welded, and welding device and method |
| CN111496354A (en) * | 2020-05-09 | 2020-08-07 | 曹瑞 | Spiral submerged arc welded pipe welding seam protection device |
| CN111992855A (en) * | 2020-09-02 | 2020-11-27 | 中国电建集团山东电力建设第一工程有限公司 | Welding and combined heat treatment method for martensite heat-resistant steel G115 large-diameter thick-wall pipeline |
| CN112195333A (en) * | 2020-10-23 | 2021-01-08 | 华能安源发电有限责任公司 | Method for improving on-site postweld heat treatment quality of P92 high-temperature pipeline |
| CN113400028A (en) * | 2021-07-07 | 2021-09-17 | 江西剑安消防科技有限责任公司 | Header pipe cutting and welding integrated device |
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| Publication number | Publication date |
|---|---|
| WO2021073558A1 (en) | 2021-04-22 |
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