CN104339120B - The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing - Google Patents
The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing Download PDFInfo
- Publication number
- CN104339120B CN104339120B CN201410600760.6A CN201410600760A CN104339120B CN 104339120 B CN104339120 B CN 104339120B CN 201410600760 A CN201410600760 A CN 201410600760A CN 104339120 B CN104339120 B CN 104339120B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rapid
- heat exchanger
- cooling heat
- clamp
- 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
Classifications
-
- 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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
-
- 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
-
- 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
- B23K2101/14—Heat exchangers
Abstract
The self-tightening type line-up clamp of the rapid-cooling heat exchanger pipe splicing of the application, comprise abutment sleeve, connecting rod and expansion sleeve, expansion sleeve is coated at connecting rod, and the both ends of expansion sleeve are fixedly connected with connecting rod, intermediate portion is not connected, leave the space that expansion sleeve expands, pierce into abutment sleeve again after expansion sleeve and connecting rod combine to fix, during use, first by after to be spliced two rapid-cooling heat exchanger pipe docking, then the self-tightening type line-up clamp of the application is stretched in pipe, compressed air is passed into gas channels, the pars intermedia supporting expansion sleeve makes expansion sleeve be radially expanded, closely abut with the internal face of rapid-cooling heat exchanger pipe 20 to be spliced with the outer circumferential side promoting described abutment sleeve, thus realize self-tightening type counterpart.Present application addresses the problem of pipe splicing middle port misalignment, overlap removal and pipe axiality, have the advantages that structure is simple, applicability is strong, security is high, easy to operate.
Description
Technical field
The application relates to the rapid-cooling heat exchanger pipe splicing manufacturing technology in petrochemical industry, particularly relates to the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing.
Background technology
Rapid-cooling heat exchanger is the key equipment that in ethylene cracker, manufacturability is very strong.Rapid-cooling heat exchanger is the two-tube nested structure of slender type, and wherein, outer tube medium is water, steam, and interior pipe medium is cracking gas, and in pipe, velocity of medium can reach 7 meters every millisecond.The length of rapid-cooling heat exchanger pipe is beyond the steel pipe specification on market, and pipe needs splicing one or one or more weld seam could meet the requirement of rapid-cooling heat exchanger pipe.Owing to being high-speed Medium in managing, to the bright and clean of inside pipe wall and smoothness requirements very high, require also very high to the axiality of pipe, departing from of the misalignment that pipe stitching portion is small or overlap and tube hub bobbin thread, all may cause the sharply decline of properties of product.Therefore, eliminate the misalignment of pipe splicing, remove splicing overlap and ensure that spelling pipe axiality becomes a rapid-cooling heat exchanger Manifold technology field urgent need to solve the problem.
Pipeline connection line-up clamp of the prior art, as shown in Figure 1, its structure is generally by front cage 1, rise block 2 at front row, rear row is risen block 3, gas circuit 4, gas tank 5, counterpart assembly 6, front walking wheel 7, brake assemblies 8, walker 9, driven unit 10, main member such as rear walking wheel 11 grade forms, wherein, counterpart assembly 6 is core components of line-up clamp, counterpart assembly 6 is usually by cylinder, (rise block 2 in front row for distributor and two groups of blocks that rise, rear row is risen block 3) composition, front walking wheel 7 is controlled by the control stick on front cage 1, brake assemblies 8, walker 9, driven unit 10, rear walking wheel 11 enters one of them pipe end of pipe to be spliced, then rise rear row by gas circuit 4 to rise block 3, the rear row block 3 that rises is contacted with inside pipe wall, be inserted in another pipe end, rise front row by gas circuit 4 and to rise block 2, the front row block 2 that rises is contacted with inside pipe wall, gas tank 5 is arranged on line-up clamp afterbody, is connected and provides compressed air for gas circuit 4 with gas circuit 4.After pipe splicing, control line-up clamp by the control stick on front cage 1 and release in pipeline.
, there is two problems in above-mentioned pipeline connection line-up clamp: the first, pipeline connection line-up clamp is bulky, complex structure, can not put into rapid-cooling heat exchanger pipe and carry out counterpart operation; The second, rise block 2 and rear row of pipeline connection line-up clamp front row is risen between block 3 and be there is very large groove, and after pipe splicing, the overlap of generation can not be removed, and does not meet the requirement of rapid-cooling heat exchanger pipe splicing.
Along with the development of social economy and technology, chemical products play very important role in human being's production and life, the construction scale of ethylene cracker is increasing, the disposal ability of rapid-cooling heat exchanger is more and more higher, require also more and more higher to the accuracy of manufacture of rapid-cooling heat exchanger, therefore, to have higher requirement to manufacturing equipment and meet the performance of product.The application provides realistic plan for solving the problem, and has far-reaching and great meaning to the development of engineering.
application content
The object of the application is the self-tightening type line-up clamp providing rapid-cooling heat exchanger pipe to splice, and to solve the problem of pipe splicing middle port misalignment, overlap removal and pipe axiality, has the feature that structure is simple, easy to operate, applicability is strong simultaneously.
The object of the application is achieved through the following technical solutions:
Provide the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing, include abutment sleeve, connecting rod and expansion sleeve, the outer circumferential side of described abutment sleeve offers the work nest for rapid-cooling heat exchanger pipe splicing work, the both ends of described abutment sleeve are provided with the limited cover for limiting described abutment sleeve axial displacement and radial displacement, the center drilling of described limited cover, described connecting rod includes large-diameter portion and minor diameter part, the large-diameter portion of described connecting rod is through described limited cover and described abutment sleeve, and be fixed on described limited cover, described expansion sleeve is arranged between the large-diameter portion of described connecting rod and described abutment sleeve, and described connecting rod is fixed at the both ends of described expansion sleeve, pars intermedia and the described connecting rod of described expansion sleeve touch,
Be provided with for passing into compressed-air actuated gas channels in described connecting rod, described gas channels starts to extend to described connecting rod large-diameter portion from the minor diameter part of described connecting rod makes described expansion sleeve be radially expanded with the compressed air making the external world enter along the pars intermedia that described gas channels blows out outside described connecting rod, support described expansion sleeve, closely abuts with the internal face of rapid-cooling heat exchanger pipe to be spliced with the outer circumferential side promoting described abutment sleeve.
Wherein, described abutment sleeve is assembled by arc spacer more than two panels or two panels.
Wherein, the two ends of described arc spacer are all extended with arc edge, and the cover rim of described limited cover and the arc of described arc spacer are along mutual clamping.
Wherein, the minor diameter part of described connecting rod offers central through hole, and the large-diameter portion of described connecting rod offers radial direction through hole, and described central through hole and described radial direction through hole are interconnected.
Wherein, described central through hole is provided with one, and described radial direction through hole is provided with multiple centered by described central through hole.
Wherein, the outlet of described radial direction through hole is positioned at the below of described work nest.
Wherein, the large-diameter portion of described connecting rod is provided with the caulking groove for putting described expansion sleeve.
Wherein, ventilation duct is arranged with outside the minor diameter part of described connecting rod.
Wherein, described expansion sleeve is rubber swelling cover.
The beneficial effect of the application:
The self-tightening type line-up clamp of the rapid-cooling heat exchanger pipe splicing of the application, comprise abutment sleeve, connecting rod and expansion sleeve, expansion sleeve is coated at connecting rod, and the both ends of expansion sleeve are fixedly connected with connecting rod, intermediate portion is not connected, leave the space that expansion sleeve expands, pierce into abutment sleeve again after expansion sleeve and connecting rod combine to fix, during use, first by after to be spliced two rapid-cooling heat exchanger pipe docking, then the self-tightening type line-up clamp of the application is stretched in pipe, compressed air is passed into gas channels, the pars intermedia supporting expansion sleeve makes expansion sleeve be radially expanded, closely abut with the internal face of rapid-cooling heat exchanger pipe to be spliced with the outer circumferential side promoting described abutment sleeve, thus realize self-tightening type counterpart.Present application addresses the problem of pipe splicing middle port misalignment, overlap removal and pipe axiality, be pioneering for rapid-cooling heat exchanger pipe splicing field, simultaneously compared with pipe-line aligning device of the prior art, the application also has the feature that structure is simple, applicability is strong, security is high, easy to operate, but also be specially adapted to, to spelling the assembled of the very high ethylene cracker rapid-cooling heat exchanger pipe of pipe quality requirement and manufacturing, also may be used for the occasion of other any pipe splicings.
Accompanying drawing explanation
Utilize accompanying drawing to be described further the application, but the embodiment in accompanying drawing does not form any restriction to the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the structural representation of pipeline connection line-up clamp of the prior art.
Fig. 2 is the structural representation of the self-tightening type line-up clamp of the rapid-cooling heat exchanger pipe splicing of the application.
Include in FIG:
1---front cage, 2---rise block, 3 at front row---arrange the block, 4 that rises afterwards---gas circuit, 5---gas tank, 6---counterpart assembly, 7---front walking wheel, 8---brake assemblies, 9---walker, 10---driven unit, 11---rear walking wheel,
Include in fig. 2:
20---rapid-cooling heat exchanger pipe, 21 to be spliced---abutment sleeve, 22---connecting rod, 23---expansion sleeve, 24---limited cover, 25---ventilation ducts.
Detailed description of the invention
With the following Examples the application is further described.
embodiment 1
One of detailed description of the invention of the self-tightening type line-up clamp of the rapid-cooling heat exchanger pipe splicing of the application, shown in figure 2, include abutment sleeve 21, connecting rod 22 and expansion sleeve 23, the outer circumferential side of described abutment sleeve 21 offers the work nest for rapid-cooling heat exchanger pipe splicing work, the both ends of described abutment sleeve 21 are provided with the limited cover 24 for limiting the axial displacement of described abutment sleeve 21 and radial displacement, the center drilling of described limited cover 24, described connecting rod 22 includes large-diameter portion and minor diameter part, the large-diameter portion of described connecting rod 22 is through described limited cover 24 and described abutment sleeve 21, and be fixed on described limited cover 24, between the large-diameter portion that described expansion sleeve 23 is arranged at described connecting rod 22 and described abutment sleeve 21, and described connecting rod 22 is fixed at the both ends of described expansion sleeve 23, pars intermedia and the described connecting rod 22 of described expansion sleeve 23 touch,
Be provided with in described connecting rod 22 for passing into compressed-air actuated gas channels, described gas channels starts to extend to described connecting rod 22 large-diameter portion from the minor diameter part of described connecting rod 22 makes described expansion sleeve 23 be radially expanded with the compressed air making the external world enter along the pars intermedia that described gas channels blows out outside described connecting rod 22, support described expansion sleeve 23, closely abuts with the internal face of rapid-cooling heat exchanger pipe 20 to be spliced with the outer circumferential side promoting described abutment sleeve 21.
During use, first by after to be spliced two rapid-cooling heat exchanger pipe docking, then the self-tightening type line-up clamp of the application is stretched in pipe, compressed air is passed into gas channels, the pars intermedia supporting expansion sleeve 23 makes expansion sleeve 23 be radially expanded, closely abuts with the internal face of rapid-cooling heat exchanger pipe 20 to be spliced with the outer arc week side promoting described abutment sleeve 21, thus realizes self-tightening type counterpart, when not using, directly take out compressed air, shift out assembled pipe outward.Present application addresses the problem of pipe splicing middle port misalignment, overlap removal and pipe axiality, be pioneering for rapid-cooling heat exchanger pipe splicing field, simultaneously compared with pipe-line aligning device of the prior art, the application also has the feature that structure is simple, applicability is strong, security is high, easy to operate, but also be specially adapted to, to spelling the assembled of the very high ethylene cracker rapid-cooling heat exchanger pipe of pipe quality requirement and manufacturing, also may be used for the occasion of other any pipe splicings.
Concrete, described abutment sleeve 21 is assembled by arc spacer more than two panels or two panels.Abutment sleeve 21 does not adopt overall structure, but by the assembled structure of the arc spacer disperseed, is conducive to dismounting, but also convenient transport, be also beneficial to processing simultaneously.The quantity of arc spacer is determined by the diameter of pipe to be spliced, and the quantity of the pipe that diameter is large corresponding arc spacer setting is also just many.
Concrete, the two ends of described arc spacer are all extended with arc edge, and the cover rim of described limited cover 24 and the arc of described arc spacer are along mutual clamping.Limited cover 24 comprises body and cover rim, and the body of limited cover 24 carries out axial limiting for abutment sleeve 21, and it is spacing that the cover rim of limited cover 24 carries out radial direction for abutment sleeve 21, structure structure, easily processes, and ease of assembly.
Concrete, the minor diameter part of described connecting rod 22 offers central through hole, and the large-diameter portion of described connecting rod 22 offers radial direction through hole, and described central through hole and described radial direction through hole are interconnected.Central through hole is level, and radial direction through hole is arranged along the diametric(al) of connecting rod 22, and this is arranged, and to be beneficial to when compressed air is given vent to anger consistent, and expansion sleeve 23 can be made to be radially expanded simultaneously and not stay leeway, gap.
Concrete, described central through hole is provided with one, and described radial direction through hole is provided with multiple centered by described central through hole.Due to the structure that expansion sleeve 23 is a shell-like, be radially expanded so radial direction through hole sets up several entirety being conducive to expansion sleeve 23 more simultaneously.
Concrete, the outlet of described radial direction through hole is positioned at the below of described work nest.Work nest is arranged in the middle part of the outer arc of abutment sleeve 21, and corresponding radial direction through hole is also arranged at middle part.
Concrete, the large-diameter portion of described connecting rod 22 is provided with the caulking groove for putting described expansion sleeve 23.Be convenient to the fixing of expansion sleeve 23 and directional expansion.
Concrete, be arranged with ventilation duct 25 outside the minor diameter part of described connecting rod 22.Pass into extraneous compressed air better, not easily leak gas.
Concrete, described expansion sleeve 23 is rubber swelling cover 23.
Above-mentioned technical characteristic is completely different from pipeline connection line-up clamp structure of the prior art, in other field, also not yet have similar structures.
embodiment 2
The detailed description of the invention two of the self-tightening type line-up clamp of the rapid-cooling heat exchanger pipe splicing of the application, the main technical schemes of the present embodiment is identical with embodiment 1, in the present embodiment unaccounted feature, adopts the explanation in embodiment 1, no longer repeats at this.The difference of the present embodiment and embodiment 1 is, the work nest being arranged at abutment sleeve 21 outer circumferential side is provided with two groups or more than two, corresponding gas channels is also provided with two groups or more than two, wherein central through hole can share, the application is set and just can carries out two groups or pipe splicing work more than two, increase work efficiency, in practical application, the technical scheme of two groups of designs is more optional.
Finally should be noted that; above embodiment is only in order to illustrate the technical scheme of the application; but not the restriction to the application's protection domain; although done to explain to the application with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical scheme of the application or equivalent replacement, and not depart from essence and the scope of technical scheme.
Claims (9)
1. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing, it is characterized in that: include abutment sleeve, connecting rod and expansion sleeve, the outer circumferential side of described abutment sleeve offers the work nest for rapid-cooling heat exchanger pipe splicing work, the both ends of described abutment sleeve are provided with the limited cover for limiting described abutment sleeve axial displacement and radial displacement, the center drilling of described limited cover, described connecting rod includes large-diameter portion and minor diameter part, the large-diameter portion of described connecting rod is through described limited cover and described abutment sleeve, and be fixed on described limited cover, described expansion sleeve is arranged between the large-diameter portion of described connecting rod and described abutment sleeve, and described connecting rod is fixed at the both ends of described expansion sleeve, pars intermedia and the described connecting rod of described expansion sleeve touch,
Be provided with for passing into compressed-air actuated gas channels in described connecting rod, described gas channels starts to extend to described connecting rod large-diameter portion from the minor diameter part of described connecting rod makes described expansion sleeve be radially expanded with the compressed air making the external world enter along the pars intermedia that described gas channels blows out outside described connecting rod, support described expansion sleeve, closely abuts with the internal face of rapid-cooling heat exchanger pipe to be spliced with the outer circumferential side promoting described abutment sleeve.
2. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 1, is characterized in that: described abutment sleeve is assembled by arc spacer more than two panels or two panels.
3. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 2, it is characterized in that: the two ends of described arc spacer are all extended with arc edge, the cover rim of described limited cover and the arc of described arc spacer are along mutual clamping.
4. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 1, it is characterized in that: the minor diameter part of described connecting rod offers central through hole, the large-diameter portion of described connecting rod offers radial direction through hole, and described central through hole and described radial direction through hole are interconnected.
5. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 4, it is characterized in that: described central through hole is provided with one, described radial direction through hole is provided with multiple centered by described central through hole.
6. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 4, is characterized in that: the outlet of described radial direction through hole is positioned at the below of described work nest.
7. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 1, is characterized in that: the large-diameter portion of described connecting rod is provided with the caulking groove for putting described expansion sleeve.
8. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 1, is characterized in that: be arranged with ventilation duct outside the minor diameter part of described connecting rod.
9. the self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing according to claim 1, is characterized in that: described expansion sleeve is rubber swelling cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600760.6A CN104339120B (en) | 2014-10-31 | 2014-10-31 | The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410600760.6A CN104339120B (en) | 2014-10-31 | 2014-10-31 | The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104339120A CN104339120A (en) | 2015-02-11 |
| CN104339120B true CN104339120B (en) | 2016-02-03 |
Family
ID=52496024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410600760.6A Active CN104339120B (en) | 2014-10-31 | 2014-10-31 | The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104339120B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397396B (en) * | 2015-12-14 | 2017-12-08 | 茂名重力石化装备股份公司 | Welding method of the inner tube shallow bore hole weldering group of jacket heat-exchanger jacket pipe to device, jacket heat-exchanger and jacket pipe |
| CN106271360A (en) * | 2016-10-27 | 2017-01-04 | 董兰田 | Caliber metal pipeline butt junction location device |
| CN106903466B (en) * | 2017-04-18 | 2019-03-08 | 山东朝日不锈钢有限公司 | Apparatus for shaping and technique in a kind of welded still pipe weld seam |
| CN108857250B (en) * | 2018-06-28 | 2020-12-22 | 芜湖泰和管业股份有限公司 | Welding equipment for compensator |
| CN109773401B (en) * | 2019-03-27 | 2020-12-22 | 东北石油大学 | Rotary inserting expansion type liner device for pipeline welding |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08112695A (en) * | 1994-10-13 | 1996-05-07 | Chiyoda Corp | Internal clamp for piping and welding method |
| CN201224009Y (en) * | 2008-05-15 | 2009-04-22 | 中国石油天然气集团公司 | Clearance adjusting mechanism for pipeline pneumatic inner aligning device |
| CN101480770A (en) * | 2008-04-01 | 2009-07-15 | 冯岩 | Hydraulic pipeline inner butt-jointing device |
| CN201603953U (en) * | 2009-09-29 | 2010-10-13 | 中国核工业二三建设有限公司 | Regulating equipment for protection in welding pipeline |
| CN102380733A (en) * | 2011-09-07 | 2012-03-21 | 无锡市创新化工设备有限公司 | Internal support fixture for splicing large flanges |
| CN102922194A (en) * | 2012-10-23 | 2013-02-13 | 宝鸡石油机械有限责任公司 | Large-aperture pipe circular seam line-up clamp and large-aperture pipe circular seam line-up clamping method |
| CN103350307A (en) * | 2013-06-25 | 2013-10-16 | 洛阳德平机械设备有限公司 | Support method and support structure of internal aligning device for pipeline with inner wall comprising concrete lining |
| CN103350309A (en) * | 2013-06-25 | 2013-10-16 | 洛阳德平机械设备有限公司 | Tension method and tension device for aligning coaxiality and circularity of pipelines |
| CN203459867U (en) * | 2013-08-12 | 2014-03-05 | 辽河石油勘探局 | Internal opening aligning machine with argon filling function |
| CN104097020A (en) * | 2014-07-18 | 2014-10-15 | 洛阳德平机械设备有限公司 | Internal aligning machine head for constructing composite pipes |
| CN204183174U (en) * | 2014-10-31 | 2015-03-04 | 茂名重力石化机械制造有限公司 | The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing |
-
2014
- 2014-10-31 CN CN201410600760.6A patent/CN104339120B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08112695A (en) * | 1994-10-13 | 1996-05-07 | Chiyoda Corp | Internal clamp for piping and welding method |
| CN101480770A (en) * | 2008-04-01 | 2009-07-15 | 冯岩 | Hydraulic pipeline inner butt-jointing device |
| CN201224009Y (en) * | 2008-05-15 | 2009-04-22 | 中国石油天然气集团公司 | Clearance adjusting mechanism for pipeline pneumatic inner aligning device |
| CN201603953U (en) * | 2009-09-29 | 2010-10-13 | 中国核工业二三建设有限公司 | Regulating equipment for protection in welding pipeline |
| CN102380733A (en) * | 2011-09-07 | 2012-03-21 | 无锡市创新化工设备有限公司 | Internal support fixture for splicing large flanges |
| CN102922194A (en) * | 2012-10-23 | 2013-02-13 | 宝鸡石油机械有限责任公司 | Large-aperture pipe circular seam line-up clamp and large-aperture pipe circular seam line-up clamping method |
| CN103350307A (en) * | 2013-06-25 | 2013-10-16 | 洛阳德平机械设备有限公司 | Support method and support structure of internal aligning device for pipeline with inner wall comprising concrete lining |
| CN103350309A (en) * | 2013-06-25 | 2013-10-16 | 洛阳德平机械设备有限公司 | Tension method and tension device for aligning coaxiality and circularity of pipelines |
| CN203459867U (en) * | 2013-08-12 | 2014-03-05 | 辽河石油勘探局 | Internal opening aligning machine with argon filling function |
| CN104097020A (en) * | 2014-07-18 | 2014-10-15 | 洛阳德平机械设备有限公司 | Internal aligning machine head for constructing composite pipes |
| CN204183174U (en) * | 2014-10-31 | 2015-03-04 | 茂名重力石化机械制造有限公司 | The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104339120A (en) | 2015-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104339120B (en) | The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing | |
| CN204183174U (en) | The self-tightening type line-up clamp of rapid-cooling heat exchanger pipe splicing | |
| CN101947724B (en) | Using method of guider for penetrating tubes of shell and tube heat exchanger | |
| CN203052055U (en) | Fast connector | |
| CN206694725U (en) | The expansion bellow of large compensation amount | |
| CN203785515U (en) | Vibration-proof structure for tail part of U-shaped tube bundle | |
| CN204114371U (en) | Directly buried type heat supply pipeline | |
| CN103115211A (en) | Detachable pipe connector | |
| CN205118521U (en) | Soft joint of reducing | |
| CN214467028U (en) | Pipeline repairing device | |
| CN208415943U (en) | A kind of telescopic detachable sealing up screw connector | |
| CN209188237U (en) | A kind of petroleum sleeve formula Filter cartridge | |
| CN207018696U (en) | One kind riveting plastic pipe device for preventing leakage | |
| CN104501644B (en) | High-pressure anticorrosion heat exchange joint and method of attachment | |
| CN103982710A (en) | Plum-shaped internal circular special-shaped seamless steel pipe | |
| CN203784556U (en) | Simple pipeline rehabilitation pipe | |
| CN204711973U (en) | The outer silk cleaning plant of a kind of fracture pipe | |
| CN205824419U (en) | A kind of pressure pipeline connection structure for modular architectural | |
| CN206740325U (en) | A kind of airtight tight lock device for sebific duct air-leakage test | |
| CN210665042U (en) | Telescopic mechanism for positioning valve test board | |
| CN202469333U (en) | Liquid separating pipe | |
| CN204008234U (en) | A kind of test sampling gun | |
| CN204025938U (en) | A kind of casing bit | |
| CN106927703B (en) | A kind of calcining kiln pipeline support system | |
| CN218094838U (en) | Heating and ventilation pipe structure convenient to assemble in butt joint mode in heating and ventilation engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 525024 Guangdong City, Maoming Province Ring West Road, No. 91 Patentee after: Maoming gravity Petrochemical Equipment Co Ltd Address before: 525024 Maoming City, Guangdong Province West Road, Maoming City, the gravity of the Petrochemical Machinery Manufacturing Co., Ltd., Patentee before: The Challenge Petrochemical Machinery Corporation |