CN210566912U - Butt welding eccentric reducing elbow used at industrial pipeline turning position and production device thereof - Google Patents
Butt welding eccentric reducing elbow used at industrial pipeline turning position and production device thereof Download PDFInfo
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- CN210566912U CN210566912U CN201920906973.XU CN201920906973U CN210566912U CN 210566912 U CN210566912 U CN 210566912U CN 201920906973 U CN201920906973 U CN 201920906973U CN 210566912 U CN210566912 U CN 210566912U
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Abstract
The utility model discloses an eccentric reducing elbow of butt welding and apparatus for producing thereof for industrial pipeline turn department, eccentric reducing elbow of butt welding includes first pipeline (1), eccentric reducing elbow (2) and second pipeline (3), wherein first pipeline (1) is the straight tube of upper and lower direction, second pipeline (3) are the straight tube of left and right sides direction, eccentric reducing elbow (2) are the macrostoma end for the lower extreme, the right-hand member is ninety degrees return bends of osculum end, the macrostoma end of eccentric reducing elbow (2) is connected to the upper end of first pipeline (1), the left end of second pipeline (3) is connected to the osculum end of eccentric reducing elbow (2). The butt welding eccentric reducing elbow has the advantages that one pipeline part replaces two originally used pipeline parts, one circumferential weld of the pipeline is reduced, the working efficiency of a construction site is improved, the X-ray detection cost of the circumferential weld is saved, and the other effect of reducing the weld is to improve the safety of the pipeline.
Description
Technical Field
The utility model belongs to the technical field of the reducing elbow is relevant, concretely relates to eccentric reducing elbow of butt welding and apparatus for producing that are used in industry pipeline turn department.
Background
It can be seen from the original structural schematic diagram before the change of the butt-welded eccentric reducing elbow used at the turning position of the industrial pipeline in the attached drawings 6 and 7, when the requirement of eccentricity and reducing at the turning position of the industrial metal pipeline is required, the butt-welded eccentric reducing elbow is connected with two ends of the pipeline in a welding way, so that the design requirement of eccentricity and reducing can be met by using one pipeline part, when the requirement of eccentricity and reducing is met after the pipeline is turned, the elbow is firstly connected with the pipeline in a butt welding way, then the eccentric reducing pipe is connected with the elbow in a butt welding way, and then the pipeline is connected with the eccentric reducing pipe in a butt welding way.
The existing butt welding eccentric reducing elbow used at the turning position of an industrial pipeline and the production device thereof have the following problems: two pipe components, namely elbows and eccentric reducer pipes, need to be designed and purchased and joined in butt welding, which adds one more girth weld to the pipe, requiring increased welding work and X-ray detection of the weld.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be used in eccentric reducing elbow of butt welding of industry pipeline turn and apparatus for producing thereof to solve the problem that proposes in the above-mentioned background art: two pipe components, namely elbows and eccentric reducer pipes, need to be designed and purchased and joined in butt welding, which adds one more girth weld to the pipe, requiring increased welding work and X-ray detection of the weld.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an eccentric reducing elbow of butt welding for industrial pipeline turn department, including first pipeline, eccentric reducing elbow and second pipeline, wherein first pipeline is the straight tube of upper and lower direction, the straight tube of second pipeline for left right direction, eccentric reducing elbow is that the lower extreme is macrostoma end, the right-hand member is ninety degrees return bends of macrostoma end, the macrostoma end of eccentric reducing elbow is connected to the upper end of first pipeline, the left end of second pipeline is connected to the osculum end of eccentric reducing elbow, eccentric reducing elbow carries out the connected form with first pipeline and is the butt welding mode, the connected form of second pipeline and eccentric reducing elbow is the butt welding mode.
The diameter of first pipeline is 400mm, the diameter of second pipeline is 220mm, the linear distance of two open ends of eccentric reducing elbow is 707mm, the distance between two endpoints of the outside convex surface of eccentric reducing elbow is 928mm, the distance between two endpoints of the inboard concave surface of eccentric reducing elbow is 490mm, the linear distance of major orifice end central point to minor orifice end cross-section of eccentric reducing elbow is 500mm, the linear distance of minor orifice end central point to major orifice end cross-section of eccentric reducing elbow is 500 mm.
A production device for butt welding eccentric reducing elbows at industrial pipeline bends comprises a first forming device and a second forming device; the first forming device comprises a first hydraulic press, a first upper die and a first lower die which are arranged up and down are arranged on the first hydraulic press, the first lower die is a plane die, the first upper die is an inclined plane die, the height of the left end of the inclined plane die is greater than that of the right end of the inclined plane die, and a vertical positioning plate is arranged between the left section of the first upper die and the left section of the first lower die; the second forming device comprises a second hydraulic press, a second upper die and a second lower die which are arranged up and down are arranged on the second hydraulic press, wherein the second lower die is a female die, the shape of the female die is matched with the shape of the convex surface of the eccentric reducing elbow, the second upper die is a male die, the shape of the male die is matched with the shape of the concave surface of the eccentric reducing elbow, the second forming device further comprises a core die, and the shape of the core die is matched with the hollow internal structure of the eccentric reducing elbow.
A production process of butt welding eccentric reducing elbow used at an industrial pipeline turning part comprises the following steps:
step one, processing an eccentric reducing elbow;
the eccentric reducing elbow is processed by adopting a production device for butt welding the eccentric reducing elbow at the turning position of an industrial pipeline, wherein the production device comprises a first forming device and a second forming device;
firstly, processing a butt welding elbow into an eccentric elbow, and then processing the eccentric elbow into an eccentric reducing elbow;
1.1, will take out after not carrying on the butt welding elbow of tip groove preparation in the heating furnace after heating after shaping, at first keep flat the butt welding elbow on first forming device and exert pressure and flatten its right-hand member, make it be the eccentric elbow of eccentric form, the opening height of the height of eccentric elbow left end is unchangeable, and the opening height of right-hand member slightly is less than the height of the osculum end of final eccentric reducing elbow to in final shaping suppression, concrete step is as follows:
firstly, putting the butt welding elbow into a first forming device for compression molding, wherein the first forming device comprises a first hydraulic press, a first upper die and a first lower die which are arranged up and down are arranged on the first hydraulic press, the first lower die is a plane die, the first upper die is an inclined plane die, the height of the left end of the inclined plane die is larger than that of the right end, a vertical positioning plate is arranged between the left section of the first upper die and the left section of the first lower die, the positioning plate is used for positioning the large end of the eccentric reducing pipe when the first forming device performs die pressing, and the butt welding elbow is formed into the eccentric elbow through compression molding of the first forming device;
1.2, putting the formed eccentric elbow into a second forming device for compression molding again, and compression molding the eccentric elbow into the eccentric reducing elbow with required size, which comprises the following steps:
the eccentric elbow is placed into a second forming device for compression molding, wherein the second forming device comprises a second hydraulic press, a second upper die and a second lower die which are arranged up and down are arranged on the second hydraulic press, the second lower die is a female die, the shape of the female die is matched with the shape of the convex surface of the eccentric reducing elbow, the second upper die is a male die, the shape of the male die is matched with the shape of the concave surface of the eccentric reducing elbow, the second forming device also comprises a core die, and the shape of the core die is matched with the hollow internal structure of the eccentric reducing elbow;
firstly, rotating the eccentric elbow by ninety degrees, then loading a core mould into the eccentric elbow, then putting the eccentric elbow into a second lower mould, starting a second forming device, pressing down a second upper mould, and pressing the deformed reducing end of the second upper mould into a required diameter, so that the eccentric elbow is formed into the eccentric reducing elbow by compression molding, the finally pressed eccentric reducing elbow reaches the required bending radius and outer diameter, after the eccentric reducing elbow is formed, performing heat treatment, and performing machining of welding grooves on two ends of the eccentric reducing elbow to finish the main manufacturing process;
welding a first pipeline at the large end of the eccentric reducing elbow;
welding a second pipeline at the large end of the eccentric reducing elbow;
the sequence of the second step and the third step can be reversed.
Compared with the prior art, the utility model provides an eccentric reducing elbow of butt welding and apparatus for producing for industrial pipeline turn department possesses following beneficial effect: the butt welding eccentric reducing elbow has the advantages that one pipeline part replaces two originally used pipeline parts, one circumferential weld of the pipeline is reduced, the working efficiency of a construction site is improved, the X-ray detection cost of the circumferential weld is saved, and the other effect of reducing the weld is to improve the safety of the pipeline.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
fig. 1 is a schematic structural view of a butt welding eccentric reducing elbow used at an industrial pipeline turn provided by the present invention;
fig. 2 is a side view of fig. 1.
FIG. 3 is a schematic structural view of a first molding apparatus;
FIG. 4 is a schematic structural view of a second molding apparatus;
FIG. 5 is a schematic view of a product after being compression molded by the second molding apparatus;
FIG. 6 is a schematic structural view of a conventional eccentric reducing elbow;
fig. 7 is a side view of fig. 6.
In the figure:
the device comprises a first pipeline 1, an eccentric reducing elbow 2 and a second pipeline 3;
a first hydraulic press 101, a first upper die 102, a first lower die 103, a positioning plate 104;
a second hydraulic press 201, a second upper die 202, a second lower die 203, and a core die 204.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 3-5, the present invention provides a technical solution:
the utility model provides an eccentric reducing elbow of butt welding for industrial pipeline turn department, including first pipeline 1, eccentric reducing elbow 2 and second pipeline 3, wherein first pipeline 1 is the straight tube of upper and lower direction, second pipeline 3 is the straight tube of left right direction, eccentric reducing elbow 2 is that the lower extreme is the macrostoma end, the right-hand member is ninety degrees return bends of macrostoma end, the macrostoma end of eccentric reducing elbow 2 is connected to the upper end of first pipeline 1, the left end of second pipeline 3 is connected to the osctoma end of eccentric reducing elbow 2, eccentric reducing elbow 2 carries out the connected form with first pipeline 1 and is the butt welding mode, second pipeline 3 is the butt welding mode with the connected form of eccentric reducing elbow 2.
Wherein: the diameter of first pipeline 1 is 400mm, the diameter of second pipeline 3 is 220mm, the straight line distance of two open ends of eccentric reducing elbow 2 is 707mm, the distance between two endpoints of the outside convex surface of eccentric reducing elbow 2 is 928mm, the distance between two endpoints of the inboard concave surface of eccentric reducing elbow 2 is 490mm, the straight line distance of macrostoma end central point to osculum end cross-section of eccentric reducing elbow 2 is 500mm, the straight line distance of osculum end central point to macrostoma end cross-section of eccentric reducing elbow 2 is 500 mm.
A production process of butt welding eccentric reducing elbow used at an industrial pipeline turning part comprises the following steps:
step one, processing an eccentric reducing elbow 2;
the eccentric reducing elbow is processed by adopting a production device for butt welding the eccentric reducing elbow at the turning position of an industrial pipeline, wherein the production device comprises a first forming device and a second forming device;
firstly, processing a butt welding elbow into an eccentric elbow, and then processing the eccentric elbow into an eccentric reducing elbow;
1.1, a butt welding elbow (concentric isometric elbow) that does not carry out end groove preparation after shaping is arranged in the heating furnace, take out after heating to the temperature that suits this metal material deformation, at first lay flat butt welding elbow on first forming device and exert pressure and flatten its right-hand member, make it be eccentric form eccentric elbow, the opening height of the height of eccentric elbow left end is unchangeable, the opening height of right-hand member slightly less than the height of the little mouth end of final eccentric reducing elbow, so that final shaping suppression, concrete step is as follows:
firstly, a butt-welding elbow is placed into a first forming device for compression molding, wherein the first forming device comprises a first hydraulic machine 101, a first upper die 102 and a first lower die 103 which are arranged up and down are arranged on the first hydraulic machine 101, the first lower die 103 is a planar die, the first upper die 102 is a bevel die, the height of the left end of the bevel die is larger than that of the right end, a vertical positioning plate 104 is arranged between the left section of the first upper die 102 and the left section of the first lower die 103, the positioning plate 104 is used for positioning the large head end of an eccentric reducing pipe when the first forming device performs die pressing, and the butt-welding elbow is formed into an eccentric elbow through compression molding of the first forming device;
1.2, putting the formed eccentric elbow into a second forming device for compression molding again, and compression molding the eccentric elbow into the eccentric reducing elbow with required size, which comprises the following steps:
the eccentric elbow is placed into a second forming device for compression molding, wherein the second forming device comprises a second hydraulic press 201, a second upper die 202 and a second lower die 203 which are arranged up and down are arranged on the second hydraulic press, the second lower die 203 is a female die, the shape of the female die is matched with the shape of the convex surface of the eccentric reducing elbow, the second upper die 202 is a male die, the shape of the male die is matched with the shape of the concave surface of the eccentric reducing elbow, the second forming device further comprises a core die 204, and the shape of the core die 204 is matched with the hollow internal structure of the eccentric reducing elbow.
The eccentric elbow is rotated by ninety degrees, a core die 204 is installed in the eccentric elbow, the eccentric elbow is put into a second lower die 203, a second forming device is started, a second upper die 202 is pressed downwards, the deformed reducing end of the second upper die is pressed into the required diameter, the eccentric elbow is formed into the eccentric reducing elbow in a compression molding mode, the finally pressed eccentric reducing elbow reaches the required bending radius and the required outer diameter, heat treatment is needed after the eccentric reducing elbow is formed, and the two ends of the eccentric reducing elbow are subjected to welding groove machining, so that the main manufacturing process is completed.
Secondly, welding a first pipeline 1 at the large end of the eccentric reducing elbow 2;
and step three, welding a second pipeline 3 at the large end of the eccentric reducing elbow 2.
The sequence of the second step and the third step can be reversed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The butt welding eccentric reducing elbow used at the turning position of an industrial pipeline comprises a first pipeline (1), an eccentric reducing elbow (2) and a second pipeline (3), wherein the first pipeline (1) is a straight pipe in the vertical direction, the second pipeline (3) is a straight pipe in the left-right direction, the eccentric reducing elbow (2) is a ninety-degree bent pipe with the lower end being a large-opening end and the right end being a small-opening end, the upper end of the first pipeline (1) is connected with the large-opening end of the eccentric reducing elbow (2), the small-opening end of the eccentric reducing elbow (2) is connected with the left end of the second pipeline (3), the eccentric reducing elbow (2) and the first pipeline (1) are connected in a butt welding mode, and the second pipeline (3) and the eccentric reducing elbow (2) are connected in a butt welding mode; the diameter of first pipeline is 400mm, the diameter of second pipeline is 220mm, the linear distance of two open ends of eccentric reducing elbow is 707mm, the distance between two endpoints of the outside convex surface of eccentric reducing elbow is 928mm, the distance between two endpoints of the inboard concave surface of eccentric reducing elbow is 490mm, the linear distance of major orifice end central point to minor orifice end cross-section of eccentric reducing elbow is 500mm, the linear distance of minor orifice end central point to major orifice end cross-section of eccentric reducing elbow is 500 mm.
2. The butt welding eccentric reducing elbow for the industrial pipeline turning part according to the claim 1 is characterized in that the production device comprises a first forming device and a second forming device; the first forming device comprises a first hydraulic machine (101), wherein a first upper die (102) and a first lower die (103) which are arranged up and down are arranged on the first hydraulic machine (101), the first lower die (103) is a plane die, the first upper die (102) is an inclined plane die, the height of the left end of the inclined plane die is larger than that of the right end of the inclined plane die, and a vertical positioning plate (104) is arranged between the left section of the first upper die (102) and the left section of the first lower die (103); the second forming device comprises a second hydraulic press (201), a second upper die (202) and a second lower die (203) which are arranged up and down are arranged on the second hydraulic press, wherein the second lower die (203) is a female die, the shape of the female die is matched with the shape of the convex surface of the eccentric reducing elbow, the second upper die (202) is a male die, the shape of the male die is matched with the shape of the concave surface of the eccentric reducing elbow, the second forming device further comprises a core die (204), and the shape of the core die (204) is matched with the hollow internal structure of the eccentric reducing elbow.
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| CN201920906973.XU CN210566912U (en) | 2019-06-15 | 2019-06-15 | Butt welding eccentric reducing elbow used at industrial pipeline turning position and production device thereof |
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| CN201920906973.XU CN210566912U (en) | 2019-06-15 | 2019-06-15 | Butt welding eccentric reducing elbow used at industrial pipeline turning position and production device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260077A (en) * | 2019-06-15 | 2019-09-20 | 江阴市南方管件制造有限公司 | A kind of butt welding eccentric reducing elbow and its production technology used in industrial pipeline turning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260077A (en) * | 2019-06-15 | 2019-09-20 | 江阴市南方管件制造有限公司 | A kind of butt welding eccentric reducing elbow and its production technology used in industrial pipeline turning |
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