CN202411681U - Butt welding device for straight pipe with small aperture - Google Patents
Butt welding device for straight pipe with small aperture Download PDFInfo
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- CN202411681U CN202411681U CN2011205407586U CN201120540758U CN202411681U CN 202411681 U CN202411681 U CN 202411681U CN 2011205407586 U CN2011205407586 U CN 2011205407586U CN 201120540758 U CN201120540758 U CN 201120540758U CN 202411681 U CN202411681 U CN 202411681U
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- butt welding
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Abstract
The utility model provides a butt welding device for a straight pipe with a small aperture. The butt welding device comprises a positioning core rod, fastening nuts, end top covers and a protection gas transitional nozzle, wherein one end of the positioning core rod is opened or two ends of the positioning core rod are opened, and the middle of the positioning core hole is hollow; a ventilating hole is formed in the middle of the positioning core rod; the protection gas transitional nozzle is screwed at one opened end of the positioning core rod, and the other end of the positioning core rod is not opened or selectively connected with a plug nut; the end top covers are sleeved on the positioning core rod; flanges are formed on the end top covers along the central direction of the positioning core rod; the fastening nuts are sleeved on the outer sides of the end top covers on the positioning core rod; and ventilating holes are formed in the end top covers and the fastening nuts. The butt welding device for the straight pipe with the small aperture controls the precision of assembling a butting joint of a heat exchange pipe, the heat exchange pipe and a filling material, and the effectiveness of protection of inert gas on the inner wall of the joint is improved, so that a weld joint of the joint is finally formed, and the manufacturing requirement of a product is met; and therefore, the welding quality of the root of a heat exchange pipe butting groove is guaranteed.
Description
Technical field
The utility model relates to Butt welding device, particularly the straight pipe with small diameter Butt welding device.
Background technology
On commercial production, often need weld tubular type equipment such as heat exchanger tube etc.In practice,, guarantee good welding quality, carry out various effort always in order to realize butt welding to tubular type equipment.
At present, a plurality of countries added with the HTGR be main the 4th generation nuclear power technology research.The HTGR steam generator of China's autonomous Design, version is widely different with in the past presurized water reactor, boiling-water reactor nuclear island primary device, has a lot of difficult points in the manufacturing.The butt joint of steam generator internals minor diameter heat exchanger tube is one of them, has received the concern of national all departments, and has set up national great special subject study project for this reason.The butt weld of minor diameter heat exchanger tube more helps having guaranteed appearance of weld after successfully introducing the welding procedure of filling corresponding fusing ring.But the nickel-base material heat exchanger tube is restriction and the principal element that influences weldquality with the assembly precision and the heat exchanger tube internal weld seams backside gas protection problem of fusing ring always.
The utility model content
In order to solve the problems of the technologies described above, the inventor has carried out research with keen determination, and the result finds; For osculum diameter heat exchanger tube,, heat exchanger tube and fusing ring are fixed on the core bar of location through the sheathed location core bar that has the top end cover of flange in both sides on it; With clamp nut that end item lid, heat exchanger tube and fusing ring lock is tight again; Thereby improve the assembly precision of fusing ring and heat exchanger tube butt joint groove, avoid or suppress the appearance of heat exchanger tube bevel for welding misalignment phenomenon, to guarantee appearance of weld and weldquality.In addition, the location core bar is a hollow, offers passage on it, through the protective gas transition ozzle that is threaded inert gas is introduced welding process, thereby realizes the protection of heat exchanger tube internal weld seams backside gas and then accomplish the utility model.
The purpose of the utility model is to provide following aspect.
(1) a kind of straight pipe with small diameter Butt welding device is characterized in that, said straight pipe with small diameter Butt welding device comprises location core bar, clamp nut, end top cover and protective gas transition ozzle;
Wherein, location core bar one end opening, the centre is hollow, and passage is offered at the core bar middle part in the location, and protective gas transition ozzle is rotatably connected in the openend of location core bar;
The end top cover is sheathed on the core bar of location, and the direction along core bar center, location on the top cover of end is equipped with flange;
On the core bar of location, the sheathed clamp nut in the top cover outside in the end;
On end top cover and clamp nut, offer passage.
(2) a kind of straight pipe with small diameter Butt welding device is characterized in that, said straight pipe with small diameter Butt welding device comprises location core bar, clamp nut, end top cover, plug nut and protective gas transition ozzle;
Wherein, location core bar two end openings, the centre is hollow, and passage is offered at the core bar middle part in the location, and protective gas transition ozzle is rotatably connected in an end of location core bar, and the plug nut is rotatably connected in the other end of location core bar;
The end top cover is sheathed on the core bar of location, and the direction along core bar center, location on the top cover of end is equipped with flange;
On the core bar of location, the sheathed clamp nut in the top cover outside in the end;
On end top cover and clamp nut, offer passage.
According to above-mentioned (1) or (2) described straight pipe with small diameter Butt welding device, it is characterized in that (3) core bar middle part, location is the flat part of smooth surface structure, is the threaded portion, in the middle of flat part, offers passage outside the straight portion both sides.
(4) according to above-mentioned (1) or (2) described straight pipe with small diameter Butt welding device, it is characterized in that, along with location core bar parallel direction, in the flange of end top cover and in clamp nut, offer passage.
(5) according to the straight pipe with small diameter Butt welding device described in above-mentioned (4); It is characterized in that; On end top cover and clamp nut join the surface, on end top cover and clamp nut, offer groove respectively, make between end top cover and clamp nut, to form air chamber.
(6) according to above-mentioned (1) described straight pipe with small diameter Butt welding device; It is characterized in that the core bar along the location is at it not on opening one side direction; In end top cover and clamp nut, offer passage; On core bar opening one side direction of location, promptly, in top end cover and clamp nut, do not offer passage connecting on protective gas transition ozzle one side direction.
(7) according to above-mentioned (2) described straight pipe with small diameter Butt welding device; It is characterized in that; The core bar along the location connects on plug nut one side direction at it, in end top cover and clamp nut, offers passage; Connect on protective gas transition ozzle one side direction at the location core bar, in top end cover and clamp nut, do not offer passage.
(8) according to above-mentioned (6) or (7) described straight pipe with small diameter Butt welding device, it is characterized in that, in the end top cover of offering passage and clamp nut, on the plane vertical, offer to top cover center bilateral symmetry passage in the end with positioning core axle; Correspondingly, on the plane vertical, offer to bilateral symmetry passage at the clamp nut center with positioning core axle.
According to above-mentioned (1) or (2) described straight pipe with small diameter Butt welding device, it is characterized in that (9) the flange outside diameter size of end top cover is with to change inner tube diameter identical.
(10) according to above-mentioned (1) or (2) described straight pipe with small diameter Butt welding device, it is characterized in that the upper deviation of the lip diameter of end top cover is identical with the lower deviation of heat exchanger tube internal diameter.
The straight pipe with small diameter Butt welding device that the utility model provides; Employing location core bar and end top cover are located the heat exchanger tube and fusing ring that will carry out butt welding; Can effectively guarantee the depth of parallelism of heat exchanger tube and Butt welding device through the end top cover; Through the clamp nut of screwing, can guarantee the applying degree that heat exchanger tube and fusing encircle.Protective gas transition ozzle through location core bar one end is installed is introduced inert gas; The location core bar other end for sealing or the plug nut is installed, via the passage of offering on the core bar of location, with the cavity UNICOM between location core bar internal gas passage and heat exchanger tube and the core bar; Inert gas is introduced in this cavity; Feasible fusing encircles under the inert gas shielding overleaf and welds, and disengages inert gas through the passage of offering on end top cover and the clamp nut, makes the protective gas pressure stability in the cavity; And have flowability, thereby further guarantee the final molding of weld seam.
The straight pipe with small diameter Butt welding device of the utility model, heat exchanger tube and the assembling of fusing ring and a backside gas protection difficult problem of taking over inboard root run when being particularly suitable for solving the minor diameter thin wall heat exchanger tube straight tube butt welding of HTGR demonstration steam generator.
The straight pipe with small diameter Butt welding device of the utility model; Be very easy to make; According to the internal diameter of the heat exchanger tube that will weld size, and according to the length of heat exchanger tube, the length of regulating the location core bar; Particularly the length of flat part and threaded portion is suitable for the device that batch welds heat exchanger tube thereby produce easily.
Description of drawings
Fig. 1 illustrates the straight pipe with small diameter Butt welding device cross-sectional view according to the utility model preferred implementation.
Fig. 2 illustrates the cross-sectional view according to location core bar in the straight pipe with small diameter Butt welding device of the utility model preferred implementation.
Fig. 3 illustrates the structural representation according to plug nut in the utility model preferred implementation straight pipe with small diameter Butt welding device.
Fig. 4 illustrates the structural representation according to clamp nut in the utility model preferred implementation straight pipe with small diameter Butt welding device.
Fig. 5 illustrates the structural representation according to the utility model preferred implementation straight pipe with small diameter Butt welding device medial end portions top cover.
Fig. 6 illustrates the structural representation according to the utility model preferred implementation straight pipe with small diameter Butt welding device medial end portions top cover.
Fig. 7 illustrates the structural representation according to clamp nut in the utility model preferred implementation straight pipe with small diameter Butt welding device.
Fig. 8 illustrates out the structural representation according to protective gas transition ozzle in the utility model preferred implementation straight pipe with small diameter Butt welding device.
Fig. 9 illustrates the heat exchanger tube alignment welder that carries out centering spot welding according to before butt welding.
The drawing reference numeral explanation:
The hollow location of 1-core bar
2-plug nut
The 3-clamp nut
4-end top cover
5-end top cover
The 6-clamp nut
7-protective gas transition ozzle
The 8-heat exchanger tube
9-melts ring
The 10-passage
The 31-passage
The 32-groove
The 41-flange
The 42-groove
The 43-passage
The 51-flange
The solid location of 11-core bar
The 12-clamp nut
111-location core bar flat part
Core bar threaded portion, 112-location
The specific embodiment
Below in conjunction with accompanying drawing, further specify the utility model with reference to the preferred specific embodiment.Characteristics of the utility model and advantage will become more clear along with these explanations.
In the utility model, the subject matter that solve is, the heat exchanger tube for the thin-walled of minor diameter under the situation of filling the fusing ring, accurately carries out butt welding, guarantees appearance of weld and weldquality.For this reason, need be under the protective gas effect, the heat exchanger tube that will weld is accurately located with the fusing ring, and then realizes good welds.
In a preferred embodiment of the utility model, as shown in fig. 1, a kind of straight pipe with small diameter Butt welding device is provided; This device comprises the location core bar 1 of hollow, and pars intermedia offers passage 10, and core bar 1 one ends are connected with plug nut 2 in the location; Core bar 1 other end is connected with protective gas transition ozzle 7 in the location; On the core bar of location, be arranged with end top cover 4 and 5 respectively,, on end top cover 4 and 5, be provided with flange 41 and 51 at top cover 4 and 5 outsides difference sheathed clamp nut 3 and 6.
During use, as shown in Figure 1, with accomplishing spot welding heat exchanger tube 8 that becomes one and the two ends of melting ring 9, be connected on flange 41 and 51, use clamp nut 3 and 6 fastening then, protective gas feeds through protective gas transition ozzle 7 from source of the gas.In the hollow cavity that between passage 10 entering heat exchanger tubes 8, fusing ring 9 and location core bar 1, forms through fixed outer core bar 1, disengage through the passage of offering in end top cover 4 and the clamp nut 3 43 and 31 again.
The effect of plug nut 2 is sealing location core bar one ends, makes protective gas flow out from passage 10.Another preferred embodiment in, also can use the hollow location core bar (not shown) of end sealing, an end opening, its openend is connected with protective gas transition ozzle.
The end top cover is used for axial clamping heat exchanger tube and fusing ring, and its direction along core bar center, location is equipped with flange, during use, heat exchanger tube is connected in flange outer sides gets final product, and flange is fixed two sections heat exchanger tubes, and has guaranteed the depth of parallelism and the axiality of fitting surface.Clamping for ease with remove heat exchanger tube, the flange head external diameter can be less than flange bottom external diameter, but flange outside diameter is in the external diameter of flange bottom.
In further preferred embodiment; End top cover flange outside diameter size and heat exchanger tube internal diameter size are consistent; The upper deviation of lip diameter and heat exchanger tube internal diameter lower deviation are consistent, and the both sides flange outside diameter is consistent, thereby further guarantee the depth of parallelism and the axiality of two sections heat exchanger tubes.
For the ease of clamping, the end top cover is a smooth surface with location core bar abutted surface, and screw thread is not set on it, and the end top cover can be free to slide on the core bar of location like this.
Be to disengage the high voltage protective gas in the cavity between heat exchange ring and location core bar in the purpose of offering passage on end top cover and the clamp nut, be unfavorable for appearance of weld or influence weldquality in order to avoid the protection atmospheric pressure is too high.
Can in all end top covers and clamp nut, offer passage, the quantity of passage is not concrete yet to be limited.But; In preferred embodiment; Offer passage being on end top cover and the clamp nut that the location core bar seals an end; And on end top cover that is in rotation protective gas transition ozzle one end and clamp nut, do not offer passage, and like Fig. 1,3,4,5, shown in 6, the air conservation gas pressure of being more convenient for like this.
In further preferred embodiment; Be in the location core bar seal in the end top cover and clamp nut of an end, on the plane vertical, offer to top cover center bilateral symmetry passage in the end with positioning core axle; Correspondingly; On the plane vertical, offer to bilateral symmetry passage at the clamp nut center, like Fig. 1, shown in 3 and 4 with positioning core axle; So not only be easy to control back side inert protective gas pressure, and the mobile protective gas of suitable pressure helps the moulding and the weldquality of butt weld.
In this embodiment, offer passage in core bar middle part, location, in practice, can ask the quantity that passage is set as required.After fixing heat exchanger tube that will weld and fusing encircle, in order to ensure the gas shield effect, can let the passage of locating on the core bar face fusing ring bottom, feasible protective gas from the passage outflow directly acts on the fusing ring.
In the straight pipe with small diameter Butt welding device according to the utility model, location core bar 1 external diameter makes location core bar 1 leave the space with heat exchanger tube 8 internal diameters less than heat exchanger tube 8 internal diameters.
In practice, location core bar 1 is flat part in the middle of can being, both sides are the structure of screw thread, can all be helicitic texture also.Considering from the angle of being convenient to make, conveniently use, is flat part in the middle of the preferred orientation core bar, and both sides are the structure of screw thread.
In straight pipe with small diameter Butt welding device according to the utility model; Core bar 1 both sides, location respectively are provided with clamp nut 3 and 6; The design of clamp nut needs adapt with the end top cover, so that during the screw threads for fastening nut, end top cover, heat exchanger tube and fusing ring is fastening fixing.
In straight pipe with small diameter Butt welding device according to this embodiment; Location core bar 1 one sides are provided with plug nut 2; Opposite side is provided with protective gas transition ozzle 7; Install through screw thread, inert protective gas is incorporated into core bar 1 inside, location, protective gas is enclosed in the cavity that forms between core bar inner passage, location and heat exchanger tube internal diameter and the location core bar through plug nut 2 through protective gas transition ozzle 7.
As shown in Figure 1, when using this device, the end top cover is positioned on the core bar of location and is positioned at locate the core bar both sides; Two sections heat exchanger tubes are positioned in the middle of the top cover of end, and are positioned on the top cover flange of end, the fusing ring of filling in two sections heat exchanger tubes butt joint grooves; Through adjustment end top cover, to guarantee the depth of parallelism and the axiality of two sections heat exchanger tubes and fusing ring, through the degree of the clamp nut of screwing; Further fixing two sections heat exchanger tubes and fusing ring; And the applying gap of reducing heat exchanger tube and fusing ring, further guarantee the fit-up gap not occur between the heat exchanger tube and fusing ring in the welding process and influence flowing of molten bath, and guarantee the moulding of weld seam; It is inner through location core bar one side protective gas transition ozzle inert gas to be incorporated into the location core bar; Inert gas flows into the location core bar; Through location core bar opposite side the plug nut is installed inert gas is blocked, the passage of inert protective gas core bar pars intermedia from the location gets in the heat exchanger tube.
During for the minor diameter heat exchanger tube butt joint welding of the steel of the same race of austenitic stainless steel, nickel-base alloy or dissimilar steel material; The straight pipe with small diameter Butt welding device exchange heat pipe banjo fixing butt jointing of the utility model capable of using and the assembly precision of heat exchanger tube and packing material are controlled; Improve the validity of the protection of inner nosepiece wall inert gas; Thereby final shaping of assurance joint welding satisfied the manufacturing requirement of product, guarantees the quality of heat exchanger tube butt joint groove root run.
Effectively raise the assembly precision of heat exchanger tube butt joint according to the straight pipe with small diameter Butt welding device of the utility model; When having realized soldering test minor diameter nickel-base alloy (or stainless steel) heat exchanger tube is docked groove back side root run gas shield; Quality of weld seam molding and Weld Performance have effectively been controlled; Advanced the progress of national great special problem greatly, for the manufacturing of HTGR demonstration project steam generator provides technology and the progress of manufacturing double shield
Before butt welding, generally need heat exchanger tube is fixed with the solid welding of fusing circling point weldering alignment.For the heat exchanger tube of small-bore thin-walled, use following heat exchanger tube alignment welder to carry out centering spot welding, said heat exchanger tube alignment welder comprises location core bar 11; Core bar 11 middle parts, location are the flat part 111 of smooth surface structure, outside the straight portion both sides, are threaded portion 112, on the threaded portion, are respectively equipped with clamp nut 12; Preferably; Said location core bar is a cylindrical bar, and the external diameter of its flat part, the heat exchanger tube internal diameter that will weld are identical with the internal diameter of the fusing ring that will fill, and the external diameter upper deviation of said core bar is consistent with the lower deviation of heat exchanger tube internal diameter; The external diameter of the threaded portion of said location core bar is equal to or less than the external diameter of flat part, and is as shown in Figure 9.
When using above-mentioned heat exchanger tube alignment welder to realize the centering spot welding of heat exchanger tube; The fusing ring 9 of filling in two heat exchanger tubes 8 and the butt joint groove is sheathed on the outside of location core bar 11; Coaxial to guarantee them; With heat exchanger tube 8 and 9 lockings of fusing ring, guaranteeing does not have misalignment between heat exchanger tube internal diameter-fusing ring internal diameter-heat exchanger tube internal diameter, guarantees the tight connection that is assembled into of three's paper spare through the clamp nut 12 of screwing; Do not have the fit-up gap, through welding manner the three is carried out spot welding in the heat exchanger tube outside then and fix.After spot welding is fixing, utilize metal heated expansion, the gap between heat exchanger tube 8 and the location core bar 9 is increased, weldment is removed.
Then, the heat exchanger tube-fusing ring-heat exchanger tube after spot welding is fixing connects and fixes on above-mentioned straight pipe with small diameter Butt welding device, under the situation that feeds inert protective gas, carries out butt welding.
More than combine specific embodiments that the utility model is illustrated.But, these embodiments only are illustrative, and it is to the protection domain of the utility model and do not constitute any limitation.It will be appreciated by those skilled in the art that under the situation that does not exceed or depart from the utility model protection domain, technical scheme of the utility model and embodiment thereof have multiple modification, improvement or equivalent, these all should fall in the protection domain of the utility model.The protection domain of the utility model is as the criterion with accompanying claims.
Claims (10)
1. a straight pipe with small diameter Butt welding device is characterized in that, said straight pipe with small diameter Butt welding device comprises location core bar, clamp nut, end top cover and protective gas transition ozzle;
Wherein, location core bar one end opening, the centre is hollow, and passage is offered at the core bar middle part in the location, and protective gas transition ozzle is rotatably connected in the openend of location core bar;
The end top cover is sheathed on the core bar of location, and the direction along core bar center, location on the top cover of end is equipped with flange;
On the core bar of location, the sheathed clamp nut in the top cover outside in the end;
On end top cover and clamp nut, offer passage.
2. a straight pipe with small diameter Butt welding device is characterized in that, said straight pipe with small diameter Butt welding device comprises location core bar, clamp nut, end top cover, plug nut and protective gas transition ozzle;
Wherein, location core bar two end openings, the centre is hollow, and passage is offered at the core bar middle part in the location, and protective gas transition ozzle is rotatably connected in an end of location core bar, and the plug nut is rotatably connected in the other end of location core bar;
The end top cover is sheathed on the core bar of location, and the direction along core bar center, location on the top cover of end is equipped with flange;
On the core bar of location, the sheathed clamp nut in the top cover outside in the end;
On end top cover and clamp nut, offer passage.
3. straight pipe with small diameter Butt welding device according to claim 1 and 2 is characterized in that, core bar middle part, location is the flat part of smooth surface structure, is the threaded portion outside the straight portion both sides, in the middle of flat part, offers passage.
4. straight pipe with small diameter Butt welding device according to claim 1 and 2 is characterized in that, along with location core bar parallel direction, in the flange of end top cover He in the clamp nut, offer passage.
5. according to the straight pipe with small diameter Butt welding device described in the claim 4; It is characterized in that; On end top cover and clamp nut join the surface, on end top cover and clamp nut, offer groove respectively, make between end top cover and clamp nut, to form air chamber.
6. straight pipe with small diameter Butt welding device according to claim 1; It is characterized in that the core bar along the location is at it not on opening one side direction; In end top cover and clamp nut, offer passage; On core bar opening one side direction of location, promptly, in top end cover and clamp nut, do not offer passage connecting on protective gas transition ozzle one side direction.
7. straight pipe with small diameter Butt welding device according to claim 2; It is characterized in that; The core bar along the location connects on plug nut one side direction at it, in end top cover and clamp nut, offers passage; Connect on protective gas transition ozzle one side direction at the location core bar, in top end cover and clamp nut, do not offer passage.
8. claim 6 or 7 described straight pipe with small diameter Butt welding devices is characterized in that, in the end top cover of offering passage and clamp nut, on the plane vertical with positioning core axle, offer to top cover center bilateral symmetry passage in the end; Correspondingly, on the plane vertical, offer to bilateral symmetry passage at the clamp nut center with positioning core axle.
9. straight pipe with small diameter Butt welding device according to claim 1 and 2 is characterized in that, the flange outside diameter size of end top cover is with to change inner tube diameter identical.
10. straight pipe with small diameter Butt welding device according to claim 1 and 2 is characterized in that, the upper deviation of the lip diameter of end top cover is identical with the lower deviation of heat exchanger tube internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205407586U CN202411681U (en) | 2011-12-21 | 2011-12-21 | Butt welding device for straight pipe with small aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205407586U CN202411681U (en) | 2011-12-21 | 2011-12-21 | Butt welding device for straight pipe with small aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202411681U true CN202411681U (en) | 2012-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205407586U Expired - Lifetime CN202411681U (en) | 2011-12-21 | 2011-12-21 | Butt welding device for straight pipe with small aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202411681U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170768A (en) * | 2011-12-21 | 2013-06-26 | 哈电集团（秦皇岛）重型装备有限公司 | Small-caliber straight pipe butt welding device |
| CN103753082A (en) * | 2013-12-24 | 2014-04-30 | 华东理工大学 | Weld centring and gas protecting device for furnace tube |
| WO2016115821A1 (en) * | 2015-01-23 | 2016-07-28 | 李泽文 | Nickel-based alloy pressure-resistant shell and implementation method thereof |
| CN110026788A (en) * | 2019-03-29 | 2019-07-19 | 武汉船用机械有限责任公司 | The processing tool and processing method of tubular member |
| CN110039251A (en) * | 2019-02-28 | 2019-07-23 | 武汉船用机械有限责任公司 | Tubular member welding tooling and welding method |
| CN110977132A (en) * | 2019-12-23 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Welding structure and method of multilayer sleeve structure |
| CN111108331A (en) * | 2018-09-19 | 2020-05-05 | 苏州明志科技股份有限公司 | Aluminum alloy heat exchanger and preparation method thereof |
| CN111571138A (en) * | 2020-05-22 | 2020-08-25 | 中船澄西扬州船舶有限公司 | Pipe comparison method for welding neck flange |
| CN117381305A (en) * | 2023-10-23 | 2024-01-12 | 广东佛燃科技有限公司 | Solid oxide fuel cell pile tower anode pipeline dress welds device |
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2011
- 2011-12-21 CN CN2011205407586U patent/CN202411681U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170768A (en) * | 2011-12-21 | 2013-06-26 | 哈电集团（秦皇岛）重型装备有限公司 | Small-caliber straight pipe butt welding device |
| CN103170768B (en) * | 2011-12-21 | 2015-12-02 | 哈电集团（秦皇岛）重型装备有限公司 | Straight pipe with small diameter Butt welding device |
| CN103753082A (en) * | 2013-12-24 | 2014-04-30 | 华东理工大学 | Weld centring and gas protecting device for furnace tube |
| CN103753082B (en) * | 2013-12-24 | 2015-10-28 | 华东理工大学 | Welding of tubes centering and gas shield device |
| WO2016115821A1 (en) * | 2015-01-23 | 2016-07-28 | 李泽文 | Nickel-based alloy pressure-resistant shell and implementation method thereof |
| CN111108331A (en) * | 2018-09-19 | 2020-05-05 | 苏州明志科技股份有限公司 | Aluminum alloy heat exchanger and preparation method thereof |
| CN110039251A (en) * | 2019-02-28 | 2019-07-23 | 武汉船用机械有限责任公司 | Tubular member welding tooling and welding method |
| CN110026788A (en) * | 2019-03-29 | 2019-07-19 | 武汉船用机械有限责任公司 | The processing tool and processing method of tubular member |
| CN110026788B (en) * | 2019-03-29 | 2020-11-24 | 武汉船用机械有限责任公司 | Machining tool and machining method for tubular part |
| CN110977132A (en) * | 2019-12-23 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Welding structure and method of multilayer sleeve structure |
| CN111571138A (en) * | 2020-05-22 | 2020-08-25 | 中船澄西扬州船舶有限公司 | Pipe comparison method for welding neck flange |
| CN111571138B (en) * | 2020-05-22 | 2021-11-26 | 中船澄西扬州船舶有限公司 | Pipe comparison method for welding neck flange |
| CN117381305A (en) * | 2023-10-23 | 2024-01-12 | 广东佛燃科技有限公司 | Solid oxide fuel cell pile tower anode pipeline dress welds device |
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Granted publication date: 20120905 |