CN105127631A - Butt-welding heating device for large pipe fittings - Google Patents
Butt-welding heating device for large pipe fittings Download PDFInfo
- Publication number
- CN105127631A CN105127631A CN201510665136.9A CN201510665136A CN105127631A CN 105127631 A CN105127631 A CN 105127631A CN 201510665136 A CN201510665136 A CN 201510665136A CN 105127631 A CN105127631 A CN 105127631A
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- Prior art keywords
- temperature
- heating
- butt welding
- heating plate
- main control
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Classifications
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a butt-welding heating device for large pipe fittings. The butt-welding heating device comprises a heating platform, wherein a plurality of combustors are arranged above the heating platform and are circularly arranged around a circle at equal intervals, and a pipe fitting to be heated is arranged at the center of a circle center formed by the combustors; the heating platform is also provided with an infrared temperature detecting device for detecting the temperatures of the pipe fittings; the upper surface of the heating platform is provided with a plurality of metal fiber heating plates, and each metal fiber heating plate is provided with a vent pipe; the heating platform is internally provided with a blast blower connected with an air collecting pocket, the air collecting pocket is connected with a plurality of air distribution branches, each air distribution branch is connected with the vent pipe on each metal fiber heating plate through a mixer, and combustible gas pipelines are also connected with the mixers. By using the butt-welding heating device, a butt-welded seam can be automatically heated in the butt-welding heating process of the large pipe fittings, the welded seam is uniformly heated, the quality of a product is improved, the heating efficiency is high, the utilization ratio of energy is increased, and the operation environment of a production workshop is improved.
Description
Technical field
The present invention relates to a kind of butt welding heater, particularly relate to a kind of in large-size pipe butt welding termination process butt welded seam place carry out the device heated.
Background technology
At present, in large-size pipe (meeting the pipe fitting that main ring seam is not less than φ 2800mm) butt welding termination process, manufacturing workshop gets used to large gun barrel and carries out heating operation to large-size pipe joint, adopts this kind of method to there is following shortcoming:
1, use large gun barrel to heat, be usually heated uneven by the metal pipe-wall of heat pipes, very easily cause weldquality defect;
2, the large gun barrel efficiency of heating surface is low, burns extremely insufficient, not only need to consume a large amount of natural gases, and surface of the work ties carbon in a large number, should not continue extensive employing under the state that environmental protection and energy requirements improve day by day.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly carries out heating for butt welded seam place in large-size pipe butt welding termination process, and commissure is heated evenly, and the device that the efficiency of heating surface is high.
In order to solve the problems of the technologies described above, technical scheme of the present invention is to provide a kind of large-size pipe butt welding heater, it is characterized in that: comprise warm table, multiple burner is located at the top of warm table and is roundedly equidistantly arranged around a circle, and the central authorities in the center of circle that burner surrounds into are located at by pipe fitting to be heated; Warm table is also provided with the infrared temperature checkout gear of the temperature for detecting pipe fitting;
Warm table upper surface is provided with polylith metallic fiber heating plate, and every block metallic fiber heating plate is equipped with breather pipe; Air blast is provided with in warm table, air blast connects gas collection bag, gas collection bag connects multiple points of distribution branch roads, and each point of distribution branch road is connected with the described breather pipe on one piece of metallic fiber heating plate respectively by a blender, and imflammable gas pipeline also connects described blender.
Preferably, the rear end of described warm table is provided with burner arm, and described burner is located on burner arm, and described infrared temperature checkout gear is also located on burner arm.
Preferably, the back of described burner is provided with thermal insulation board.
Preferably, described thermal insulation board is thermal insulation tile.
Preferably, described burner is all equal with the quantity of metallic fiber heating plate, point distribution branch road.
Preferably, described air blast connects ECU, and ECU comprises main control unit, startup/closing unit, firing optimization unit and temperature display unit; Main control unit connects startup/closing unit, firing optimization unit and temperature display unit respectively, and main control unit also connects described air blast and infrared temperature checkout gear, and startup/closing unit connects described metallic fiber heating plate.
Preferably, the quantity of described startup/closing unit is equal with the quantity of metallic fiber heating plate, and each startup/closing unit controls respective metallic fiber heating plate.
Preferably, described air blast inputs to described breather pipe after being mixed in described blender with imflammable gas by the air passed into, and is in radiant combustion state in making described metallic fiber heating plate in working order.
Preferably, the actual heating-up temperature that infrared temperature checkout gear detects by described main control unit and the heating-up temperature that firing optimization unit presets are compared, and temperature display unit is for showing described actual heating-up temperature and the difference of heating-up temperature preset; Main control unit adjusts the intake of air blast, to control the heating-up temperature of metallic fiber heating plate according to this difference.
Preferably, described main control unit carries out self-clocking to the actual heat time, after reaching default heat time, controls air blast shut down by main control unit; Or when do not reach the default heat time namely reach the heating-up temperature of needs time, by main control unit control air blast shut down.
Device provided by the invention overcomes the deficiencies in the prior art, and can carry out Automatic-heating in butt welded seam place in large-size pipe butt welding termination process, commissure is heated evenly, improve product quality, and the efficiency of heating surface is high, improve efficiency of energy utilization, improve the operating environment of workshop.
Accompanying drawing explanation
The front view of the large-size pipe butt welding heater that Fig. 1 provides for the present embodiment;
Fig. 2 is the top view of warm table;
Fig. 3 is ECU structured flowchart.
Detailed description of the invention
For making the present invention become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The front view of the large-size pipe butt welding heater that Fig. 1 provides for the present embodiment, described large-size pipe butt welding heater comprises two chassis, each chassis is equipped with a warm table 2, each warm table 2 rear end is equipped with a burner arm, each burner arm is provided with five burners 1, the top of warm table 2 is located at by burner 1, ten burners 1 are rounded equidistantly around a circle layout, and pipe fitting 3 to be heated can be erected at the central authorities of ten burners 1 around a circle by the device of arbitrary structures; Meanwhile, be fixed with an infrared temperature checkout gear 6 at burner arm 4, for detecting the temperature of pipe fitting 3.
Be provided with thermal insulation board 5 at the back of burner 1, in the present embodiment, thermal insulation board 5 adopts thermal insulation tile.
Adopt metallic fiber Combustion of Premixed technology to the heating of large-size pipe 3, specific as follows: in two warm tables 2, to be respectively provided with an air blast, each air blast connects a gas collection bag, and each gas collection is wrapped and is provided with five tunnels and divides distribution, connects five blenders respectively; Composition graphs 2, is provided with five pieces of metallic fiber heating plates 7 at warm table 2 upper surface, and every block metallic fiber heating plate 7 is equipped with breather pipe, and five blenders connect five breather pipes respectively; Input to breather pipe after being mixed in blender with imflammable gas by the air passed into by air blast, in making metallic fiber heating plate 7 in working order, be in hyperthermia radiation fired state.Imflammable gas is delivered in blender by exterior line.
Composition graphs 3, air blast connects ECU, and this ECU comprises main control unit, startup/closing unit, firing optimization unit and temperature display unit.Main control unit connects startup/closing unit, firing optimization unit and temperature display unit respectively, and main control unit also connects air blast; The quantity of startup/closing unit is equal with the quantity of metallic fiber heating plate 7, and each startup/closing unit controls respective metallic fiber heating plate 7; Main control unit adjusts the intake of air blast according to the setting value of firing optimization unit, to reach the object of adjustment heating-up temperature.
The infrared temperature checkout gear 6 for measuring the actual heating-up temperature of large-size pipe 3 is also provided with in one end of warm table 2, infrared temperature checkout gear 6 connects main control unit, actual heating-up temperature and the heating-up temperature that presets are compared by main control unit, temperature display unit is for showing the difference of actual heating-up temperature and the heating-up temperature preset; If the two does not mate, then adjust the intake of air blast to control heating-up temperature by main control unit.
Main control unit also carries out self-clocking to the actual heat time, after reaching default heat time, controls air blast shut down by main control unit; Or when do not reach the default heat time namely reach the heating-up temperature of needs time, by main control unit control air blast shut down.
The use step of the large-size pipe butt welding heater that the present embodiment provides is:
Step 1, determine large-size pipe material to be heated and actual measurement pipe wall thickness.
Step 2, set heating-up temperature by ECU, alignment butt weld, complete weld preparation operation.
Step 3, to switch on power, determine that the infrared temperature checkout gear in this device is in normal operating conditions, according to the actual requirements, the startup/closing unit in corresponding unlatching ECU.
After step 4, normal startup, the actual temperature measured by infrared temperature checkout gear and the temperature preset are compared, by firing optimization unit corresponding adjustment setting heating-up temperature numerical value, determine that mouth of pipe temperature meets welding requirements.
Although the present invention can disclose as above with preferred embodiments; but and be not used to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is when being as the criterion of defining with claim.
Claims (10)
1. a large-size pipe butt welding heater, it is characterized in that: comprise warm table (2), multiple burner (1) is located at the top of warm table (2) and is roundedly equidistantly arranged around a circle, and the central authorities in the center of circle that burner (1) surrounds into are located at by pipe fitting (3) to be heated; Warm table (2) is also provided with the infrared temperature checkout gear (6) of the temperature for detecting pipe fitting (3);
Warm table (2) upper surface is provided with polylith metallic fiber heating plate (7), and every block metallic fiber heating plate (7) is equipped with breather pipe; Warm table is provided with air blast in (2), air blast connects gas collection bag, gas collection bag connects multiple points of distribution branch roads, each point of distribution branch road is connected with the described breather pipe on one piece of metallic fiber heating plate (7) respectively by a blender, and imflammable gas pipeline also connects described blender.
2. a kind of large-size pipe butt welding heater as claimed in claim 1, it is characterized in that: the rear end of described warm table (2) is provided with burner arm (4), described burner (1) is located on burner arm (4), and described infrared temperature checkout gear (6) is also located on burner arm (4).
3. a kind of large-size pipe butt welding heater as claimed in claim 1, is characterized in that: the back of described burner (1) is provided with thermal insulation board (5).
4. a kind of large-size pipe butt welding heater as claimed in claim 3, is characterized in that: described thermal insulation board (5) is thermal insulation tile.
5. a kind of large-size pipe butt welding heater as claimed in claim 1, is characterized in that: described burner (1) is all equal with the quantity of metallic fiber heating plate (7), point distribution branch road.
6. a kind of large-size pipe butt welding heater as claimed in claim 1, is characterized in that: described air blast connects ECU, and ECU comprises main control unit, startup/closing unit, firing optimization unit and temperature display unit; Main control unit connects startup/closing unit, firing optimization unit and temperature display unit respectively, main control unit also connects described air blast and infrared temperature checkout gear (6), and startup/closing unit connects described metallic fiber heating plate (7).
7. a kind of large-size pipe butt welding heater as claimed in claim 6, it is characterized in that: the quantity of described startup/closing unit is equal with the quantity of metallic fiber heating plate (7), each startup/closing unit controls respective metallic fiber heating plate (7).
8. a kind of large-size pipe butt welding heater as claimed in claim 1, it is characterized in that: described air blast inputs to described breather pipe after being mixed in described blender with imflammable gas by the air passed into, in making described metallic fiber heating plate (7) in working order, be in radiant combustion state.
9. a kind of large-size pipe butt welding heater as claimed in claim 6, it is characterized in that: the actual heating-up temperature that infrared temperature checkout gear (6) detects by described main control unit and the heating-up temperature that firing optimization unit presets are compared, temperature display unit is for showing described actual heating-up temperature and the difference of heating-up temperature preset; Main control unit adjusts the intake of air blast, to control the heating-up temperature of metallic fiber heating plate (7) according to this difference.
10. a kind of large-size pipe butt welding heater as claimed in claim 6, is characterized in that: described main control unit carries out self-clocking to the actual heat time, after reaching default heat time, controls air blast shut down by main control unit; Or when do not reach the default heat time namely reach the heating-up temperature of needs time, by main control unit control air blast shut down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665136.9A CN105127631A (en) | 2015-10-15 | 2015-10-15 | Butt-welding heating device for large pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665136.9A CN105127631A (en) | 2015-10-15 | 2015-10-15 | Butt-welding heating device for large pipe fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105127631A true CN105127631A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510665136.9A Pending CN105127631A (en) | 2015-10-15 | 2015-10-15 | Butt-welding heating device for large pipe fittings |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439368A (en) * | 2016-12-20 | 2017-02-22 | 北京市公用事业科学研究所 | Pipeline heater |
| CN106583973A (en) * | 2016-12-15 | 2017-04-26 | 中国水利水电第十二工程局有限公司 | Heating device and method for heating steel pipe circular seams by using heating device |
| CN108975665A (en) * | 2018-06-25 | 2018-12-11 | 成都市金鼓药用包装有限公司 | A kind of glass ampoule bottles production heating device |
| CN111014874A (en) * | 2019-12-27 | 2020-04-17 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Automatic welding heating control device and operation method thereof |
| CN112091372A (en) * | 2020-04-30 | 2020-12-18 | 中国航发航空科技股份有限公司 | Auxiliary heating device and heating method for argon arc welding of annular case |
-
2015
- 2015-10-15 CN CN201510665136.9A patent/CN105127631A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583973A (en) * | 2016-12-15 | 2017-04-26 | 中国水利水电第十二工程局有限公司 | Heating device and method for heating steel pipe circular seams by using heating device |
| CN106439368A (en) * | 2016-12-20 | 2017-02-22 | 北京市公用事业科学研究所 | Pipeline heater |
| CN108975665A (en) * | 2018-06-25 | 2018-12-11 | 成都市金鼓药用包装有限公司 | A kind of glass ampoule bottles production heating device |
| CN108975665B (en) * | 2018-06-25 | 2021-04-20 | 成都市金鼓药用包装有限公司 | Glass ampoule produces heating device |
| CN111014874A (en) * | 2019-12-27 | 2020-04-17 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Automatic welding heating control device and operation method thereof |
| CN112091372A (en) * | 2020-04-30 | 2020-12-18 | 中国航发航空科技股份有限公司 | Auxiliary heating device and heating method for argon arc welding of annular case |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |