CN204430539U - A kind of caisson for pipeline welding - Google Patents
A kind of caisson for pipeline welding Download PDFInfo
- Publication number
- CN204430539U CN204430539U CN201520043408.7U CN201520043408U CN204430539U CN 204430539 U CN204430539 U CN 204430539U CN 201520043408 U CN201520043408 U CN 201520043408U CN 204430539 U CN204430539 U CN 204430539U
- Authority
- CN
- China
- Prior art keywords
- shrouding
- gas tube
- gas
- pipeline
- caisson
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 238000009826 distribution Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 79
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 22
- 229910001220 stainless steel Inorganic materials 0.000 description 14
- 239000010935 stainless steel Substances 0.000 description 14
- 229910052786 argon Inorganic materials 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a kind of caisson for pipeline welding; comprise rigidity gas tube and for the first shrouding of limiting gas storage space in described pipeline and the second shrouding; described first shrouding and the second shrouding arrange along the axially spaced-apart of this gas tube and are fixedly connected on described gas tube respectively; the sidewall of described gas tube is formed with air-filled pore; one end of this gas tube sealingly extends through described first shrouding; the other end is closed, can be filled with protective gas by described gas tube to described gas storage space.Protective gas can be limited in gas storage space by spaced first shrouding and the second shrouding by caisson of the present utility model, thus forms available protecting with lower cost to high temperature wlding.First shrouding is connected with the gas tube of the second shrouding by rigidity, can be placed on easily in pipeline and not topple over.
Description
Technical field
The utility model relates to welding corollary equipment, particularly, relates to a kind of caisson for pipeline welding.
Background technology
Argon arc welding technology is on the basis of conventional arc weldering principle, utilizes argon gas to the protection of metal wlding, and logical excessive current makes wlding on welded base material, be fused into liquid formation molten bath, makes welded metal and wlding reach a kind of solder technology of metallurgical binding.Owing to constantly serving argon gas in high-temperature fusion welding, wlding can not be contacted with the oxygen in air, thus prevent the oxidation of wlding, be usually used in soldering stainless steel, ferrous metal etc.
Because stainless steel has good chemical stability in the aqueous solution of air, water, acid, alkali or salt, be therefore widely used in producing, the various aspects of life.Such as, the inner liner stainless steel pipe with advantages such as intensity is high, corrosion resistance is strong, cost is low, long service life can be formed, as fire protection pipeline etc. by base tube (as seamless steel pipe) and stainless steel lining pipe.But in this inner liner stainless steel pipe welding process, the stainless steel bushing pipe being positioned at inner side can contact with the air of pipeline and be oxidized, and has a strong impact on welding quality.
For this reason, people carry out welding protection by the mode to applying argon gas in pipeline to liner stainless steel tube usually.But the method directly to pipeline (particularly long pipeline) interior applying argon gas needs the argon gas of at substantial, thus increases production cost.
In view of this, be necessary to provide a kind of device that can be used in pipeline welding, to overcome above-mentioned prior art Problems existing.
Utility model content
Problem to be solved in the utility model is to provide a kind of caisson for pipeline welding, and this caisson effectively can reduce protective gas amount required in pipeline welding, thus cost-saving.In addition, this caisson also should have easy to use, the feature such as to be easy to be fixed in pipeline.
To achieve these goals, the utility model provides a kind of caisson for pipeline welding, comprise rigidity gas tube and for the first shrouding of limiting gas storage space in described pipeline and the second shrouding, described first shrouding and the second shrouding arrange along the axially spaced-apart of this gas tube and are fixedly connected on described gas tube respectively, the sidewall of described gas tube is formed with air-filled pore, and, one end of this gas tube sealingly extends through described first shrouding, the other end is closed, so that protective gas can be filled with by described gas tube to the described gas storage space between described first shrouding and described second shrouding in described pipeline.
Preferably, the described other end of described gas tube is closed by described second shrouding.
Preferably, described first shrouding and described second shrouding are respectively round-shaped, and described gas tube is connected to described first shrouding and the second shrouding center of circle separately.
Preferably, the spacing between described first shrouding and described second shrouding is 300mm-600mm, and the internal diameter of described gas tube is 15mm-25mm.
Preferably, described gas tube is formed with the multiple described air-filled pore along its axial distribution.
Preferably, the side away from each other of described first shrouding and described second shrouding is respectively arranged with draw ring.
Preferably, described first shrouding and described second shrouding comprise elastic panel respectively and are separately positioned on two rigid plates of these elastic panel both sides.
Preferably, described first shrouding and/or described second shrouding are also formed with exhaust outlet.
Pass through technique scheme; in pipeline welding; protective gas (as argon gas) can be filled with in pipeline by gas tube; and to be limited to by protective gas in gas storage space therebetween by spaced first shrouding and the second shrouding, thus with lower cost, available protecting is formed to high temperature wlding.First shrouding is connected with the gas tube of the second shrouding by rigidity, the situation that the first shrouding or the second shrouding tilt or topple in use can not occur, thus can be placed in pipeline easily.
Other feature and advantage of the present utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of the caisson for pipeline welding according to a kind of detailed description of the invention of the utility model.
Description of reference numerals
1 gas tube 2 first shrouding
2a first elastic panel 2b first rigid plate
3 second shrouding 3a second elastic panels
3b second rigid plate 4 air-filled pore
5 draw ring 6 exhaust outlets
7 first pipeline 8 second pipes
9 weld seams
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.
With reference to shown in Fig. 1, according to the caisson for pipeline welding of a kind of detailed description of the invention of the utility model, comprise the gas tube 1 of rigidity and the first shrouding 2 and the second shrouding 3 for limiting gas storage space in described pipeline, described first shrouding 2 and the second shrouding 3 arrange along the axially spaced-apart of this gas tube 1 and are fixedly connected on described gas tube 1 respectively, the sidewall of described gas tube 1 is formed with air-filled pore 4, and, one end of this gas tube 1 sealingly extends through described first shrouding 2, the other end is closed, so that protective gas can be filled with by described gas tube 1 to the space between described first shrouding 2 and described second shrouding 3 in described pipeline.
In above-mentioned caisson, gas tube 1 can be processed air-filled pore 4 and be formed on the sidewall of fine steel tube, and be used for connective protection gas tank near one end of the first shrouding 2, the other end is closed.Preferably, this other end is closed by the second shrouding 3.First shrouding 2 is provided with and allows the through hole that passes of gas tube 1, between gas tube 1 and this through hole, rubber blanket or fluid sealant can be set, thus form described gas tube 1 and sealingly extend through the first shrouding 2.
In pipeline welding; the first pipeline 7 is such as needed to be soldered to second pipe 8; protective gas can be filled with in pipeline by gas tube 1; and protective gas is limited in gas storage space therebetween by spaced first shrouding 2 and the second shrouding 3; thus when welding, the protective gas in gas storage space can avoid the material oxidation of insides of pipes.Only need in welding protective gas to be full of the gas storage space between the first shrouding 2 and the second shrouding 3, namely can small amount protective gas to high temperature wlding formed available protecting, cost-saving.
In addition, because the first shrouding 2 is connected with the gas tube 1 of the second shrouding 3 by rigidity, in use the first shrouding 2 and the second shrouding 3 are retrained mutually by this gas tube 1, the first shrouding 2 can not be there is or the second shrouding 3 is tilted at pipeline or the situation of toppling over, thus can be placed in pipeline easily, enhance productivity.
The caisson that the utility model provides may be used for the pipeline welding various material and structure, as inner liner stainless steel pipe, stainless steel tube etc.Wherein inner liner stainless steel pipe can be composited by base tube (seamless steel pipe) and bushing pipe (stainless steel tube), has that intensity is high, corrosion resistance is strong, an advantage such as cheap, long service life.But this inner liner stainless steel pipe also has welding procedure complexity, welding quality is difficult to the defects such as control.The caisson that the utility model provides can effectively overcome above-mentioned defect, is conducive to the various aspects that promotion inner liner stainless steel pipe is widely used in producing, living.Wherein, the protective gas be filled with in described caisson is preferably argon gas.
Just as described above, caisson of the present utility model passes through gas tube 1 to insufflation gas in gas storage space.In order to make to be filled with gas uniform, be distributed in gas storage space sufficiently, to form available protecting to tube material, multiple air-filled pore 4 can be set along the axis of gas tube 1, or many inflatable and exhaust hole 4 can be set in the axis of gas tube 1.
Different according to soldered pipeline section shape, the first shrouding 2 and the second shrouding 3 of respective shapes can be selected.Preferably, the first shrouding 2 and the second shrouding 3 can have round-shaped respectively, and, gas tube 1 can be made to be connected to the first shrouding 2 and the respective center of the second shrouding 3.The benefit of this set is, can improve the stability of structure on the one hand, is convenient to this caisson to place in the duct; On the other hand, can protective gas be made further evenly to be filled with gas storage space, to form uniform protection to pipeline.Should be understood that, in pipeline, the uniformity of protective gas has great importance for pipeline strength, if because due to some welding position oxidized and formed stress concentrate, greatly will affect pipeline quality.
For saving required protective gas, suitably can reduce the spacing between the first shrouding 2 and the second shrouding 3, being preferably 300mm-600mm.Gas tube 1 needs to be connected (as being connected to argon bottle by flexible pipe) with protection gas tank, thus should not be too thick; Gas tube 1 also needs the air-filled pore 4 can processing appropriate size, so that make protection gas enter gas storage space smoothly, and thus should not be too thin.Be 15mm-25mm according to the internal diameter of the gas tube 1 in the caisson of a kind of preferred embodiment of the utility model.
With reference to Fig. 1, the side away from each other of the first shrouding 2 and the second shrouding 3 can also arrange draw ring 5 respectively, pull out caisson can be drawn in pipeline or in pipeline from any side.This draw ring 5 can connecting rope or iron wire, thus enters in pipeline without the need to operating personnel when pulling.
In caisson of the present utility model, the first shrouding 2 and the second shrouding 3 easily should be able to be positioned in pipeline not run-off the straight or to topple over.For this reason, described first shrouding 2 and described second shrouding 3 can comprise elastic panel respectively and be separately positioned on two rigid plates of these elastic panel both sides.Particularly, as shown in Figure 1, the first shrouding 2 is formed by sandwiched first elastic panel 2a in the middle of two the first rigid plate 2b, and the second shrouding 3 is formed by two the second rigid plate 3b and the second elastic panel 3a.To equal when making elastic panel radial dimension or slightly larger than internal diameter of the pipeline, and when rigid plate radial dimension is slightly less than internal diameter of the pipeline, the first shrouding 2 and the second shrouding 3 can be made to load pipeline easily and not topple over.
In caisson according to a kind of comparatively preferred embodiment of the utility model, the first shrouding 2 and/or the second shrouding 3 can also be formed with exhaust outlet 6.While be filled with protective gas in gas storage space, need the air wherein existed to discharge, therefore this exhaust outlet 6 is set.In addition, after being provided with exhaust outlet 6, in welding process, constantly can being filled with protective gas in gas storage space, to avoid air to enter gas storage space by gap, thus promoting welding quality further.
In order to understand the utility model better, below the method that the caisson utilizing the utility model to provide carries out pipeline welding being described, wherein, needing the first pipeline 7 to be welded in second pipe 8.The method comprises the steps: that a. makes described first pipeline 7 and described second pipe 8 place coaxially and be contacted by welding position respect to one another; B. the above-mentioned storage argon device provided by the utility model is put into pipeline and is made described welding position between described first shrouding 2 and described second shrouding 3; C. in described gas storage space, described protective gas is filled with by described gas tube 1; D. carry out welding in described welding position and form weld seam 9, so that described first pipeline 7 is connected to described second pipe 8.The method may be used for utilizing the welding of argon gas to liner stainless steel tube to protect.
Below preferred embodiment of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (8)
1. the caisson for pipeline welding, it is characterized in that, comprise rigidity gas tube (1) and for the first shrouding (2) of limiting gas storage space in described pipeline and the second shrouding (3), described first shrouding (2) and the second shrouding (3) arrange along the axially spaced-apart of this gas tube (1) and are fixedly connected on described gas tube (1) respectively, the sidewall of described gas tube (1) is formed with air-filled pore (4), and, one end of this gas tube (1) sealingly extends through described first shrouding (2), the other end is closed, so that protective gas can be filled with by described gas tube (1) to the described gas storage space be positioned between described first shrouding (2) and described second shrouding (3) in described pipeline.
2. caisson according to claim 1, is characterized in that, the described other end of described gas tube (1) is closed by described second shrouding (3).
3. caisson according to claim 1, it is characterized in that, described first shrouding (2) and described second shrouding (3) are respectively round-shaped, further, described gas tube (1) is connected to described first shrouding (2) and the respective center of circle of the second shrouding (3).
4. caisson according to claim 1, is characterized in that, the spacing between described first shrouding (2) and described second shrouding (3) is 300mm-600mm, and the internal diameter of described gas tube (1) is 15mm-25mm.
5. caisson according to claim 1, is characterized in that, described gas tube (1) is formed with the multiple described air-filled pore (4) along its axial distribution.
6. caisson according to claim 1, is characterized in that, the side away from each other of described first shrouding (2) and described second shrouding (3) is respectively arranged with draw ring (5).
7. caisson according to claim 1, is characterized in that, described first shrouding (2) and described second shrouding (3) comprise elastic panel respectively and be separately positioned on two rigid plates of these elastic panel both sides.
8. caisson as claimed in any of claims 1 to 7, is characterized in that, described first shrouding (2) and/or described second shrouding (3) are also formed with exhaust outlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043408.7U CN204430539U (en) | 2015-01-22 | 2015-01-22 | A kind of caisson for pipeline welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043408.7U CN204430539U (en) | 2015-01-22 | 2015-01-22 | A kind of caisson for pipeline welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204430539U true CN204430539U (en) | 2015-07-01 |
Family
ID=53598459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520043408.7U Active CN204430539U (en) | 2015-01-22 | 2015-01-22 | A kind of caisson for pipeline welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204430539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498157A (en) * | 2017-08-14 | 2017-12-22 | 苏州凸现信息科技有限公司 | It is a kind of to weld caisson from movement pipeline |
| CN110695496A (en) * | 2019-10-18 | 2020-01-17 | 中国电建集团山东电力建设第一工程有限公司 | Argon filling method for high alloy steel header pipe seat weld crater and welding method |
-
2015
- 2015-01-22 CN CN201520043408.7U patent/CN204430539U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498157A (en) * | 2017-08-14 | 2017-12-22 | 苏州凸现信息科技有限公司 | It is a kind of to weld caisson from movement pipeline |
| CN110695496A (en) * | 2019-10-18 | 2020-01-17 | 中国电建集团山东电力建设第一工程有限公司 | Argon filling method for high alloy steel header pipe seat weld crater and welding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105252120B (en) | A kind of stainless steel cylinder liner circular-seam welding method | |
| CN104708186A (en) | Gas storage device for pipeline welding and pipeline welding method | |
| CN202861606U (en) | Inflatable plugging device in pipe used for stainless steel pipeline argon arc welding | |
| CN105039880B (en) | Little ozzle, major diameter, the cylindricality aluminium alloy inner container heat treatment method of big L/D ratio | |
| CN204430539U (en) | A kind of caisson for pipeline welding | |
| CN204550682U (en) | A kind of non-ferrous metal oxygen-enriched bottom-blowing oxygen lance | |
| CN103752988B (en) | The welding method of corrosion resistant plate | |
| CN101829838A (en) | Welding method | |
| CN202715938U (en) | Protective device in big-caliber welded pipe | |
| CN204509396U (en) | Hanging arm roll in a kind of stove | |
| CN102513657A (en) | Argon arc welding method for pipe welding and auxiliary device used in method | |
| CN109807438A (en) | A method of for water heater porcelain enamel steel liner girth welding | |
| CN205254320U (en) | Titanium is argon gas cooling protection cover for sealing of tube | |
| CN209260137U (en) | It is a kind of for the circulating pipe gas leakage detection of RH refining furnace vacuum tank, cooling device | |
| CN203976853U (en) | A kind of shower nozzle of RH vacuum refining top gun | |
| CN207551220U (en) | Convenient for the high temperature resistant stainless steel live-roller of heat dissipation | |
| CN205464915U (en) | Welder water -cooling structure and welder | |
| CN203209841U (en) | Longitudinal submerged arc welded steel tube used at minus 100 DEG C | |
| CN204075183U (en) | A kind of electric furnace steel ladle gas toast burner | |
| CN202846004U (en) | Boiler stainless steel argon arc welding protector | |
| CN202356775U (en) | Auxiliary device for welding tubes by argon arc welding | |
| CN203976601U (en) | Porcelain platinum tank furnace bubbling device | |
| CN204747933U (en) | Import and export heat exchanger assembly fixture | |
| CN215763749U (en) | Metal connecting pipe structure | |
| CN204632517U (en) | Comprehensive ne-leakage oil guide pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |