CN210196715U - High-strength impact-resistant neck-equipped welding neck flange for petroleum pipeline - Google Patents
High-strength impact-resistant neck-equipped welding neck flange for petroleum pipeline Download PDFInfo
- Publication number
- CN210196715U CN210196715U CN201920900433.0U CN201920900433U CN210196715U CN 210196715 U CN210196715 U CN 210196715U CN 201920900433 U CN201920900433 U CN 201920900433U CN 210196715 U CN210196715 U CN 210196715U
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- Prior art keywords
- neck
- flange
- hole
- wall
- petroleum pipeline
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- Expired - Fee Related
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Abstract
The high-strength impact-resistant butt welding flange with the neck for the petroleum pipeline mainly comprises a disc-shaped flange body and an inner neck, wherein a connecting part protruding outwards is arranged at the center of the flange body; the center of the connecting part is a through hole, an internal thread is arranged in the direction of the extension degree of the hole wall of the through hole, and a first sealing ring is arranged below the internal thread; the lower part of the outer wall of the inner neck is provided with an external thread, and the lower part of the outer wall of the inner neck is connected with the through hole through a thread; the inner neck outer wall middle part sets up annular bulge, the bulge offsets with the connecting portion top surface, this take neck welding flange structural design science, and impact resistance is good, the flange is connected with the oil body firmly, the flange replacement cost is low to firm in connection, leakproofness are good between the ring flange.
Description
Technical Field
The utility model relates to a petroleum pipeline adapting unit field especially relates to a petroleum pipeline is with anti neck butt welding flange of taking of high strength dashes.
Background
A Flange (Flange), also known as a Flange collar or Flange. The flange is a part for connecting the shafts and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the device for connection between two devices.
In the petroleum industry, flanges are required to be connected with petroleum pipelines, the petroleum pipelines need to be laid for a long distance, the petroleum pipelines are laid outdoors, the influence of severe weather needs to be borne, and meanwhile, the petroleum pipelines need to bear larger vibration and extrusion, so that the flange connection part needs to have good extrusion resistance; and the welding face of the neck-shaped boss of the present commonly used butt welding flange with neck and the petroleum pipe body is relatively flat and narrow, the connection between the pipe body and the flange after welding forming is not stable enough, the condition of easy breakage occurs, and the whole flange needs to be replaced again once the breakage occurs.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's is not enough, provides a structural design science, and impact resistance is good, the flange is connected firmly with the oil pipe body, the flange change cost is low to firm in connection, the good petroleum pipeline of leakproofness is with high strength anti-impact neck butt welding flange between the ring flange.
For realizing the utility model provides the following technical scheme:
the high-strength impact-resistant butt welding flange with the neck for the petroleum pipeline mainly comprises a disc-shaped flange body and an inner neck, wherein a connecting part protruding outwards is arranged at the center of the flange body; the center of the connecting part is a through hole, an internal thread is arranged in the direction of the extension degree of the hole wall of the through hole, and a first sealing ring is arranged below the internal thread; the lower part of the outer wall of the inner neck is provided with an external thread, and the lower part of the outer wall of the inner neck is connected with the through hole through a thread; the middle part of the outer wall of the inner neck is provided with an annular protruding part which is propped against the top surface of the connecting part.
Further, a second sealing ring is arranged between the protruding portion and the top surface of the connecting portion.
Further, the top surface of the inner neck is also provided with an annular groove.
Furthermore, first bolt holes are uniformly formed in the circumferential ring on the outer side of the through hole in the flange body.
Further, second bolt holes are uniformly formed in the circumferential ring on the outer side of the first bolt hole.
The utility model discloses an useful part:
firstly, the method comprises the following steps: the flange body is in threaded connection with the inner neck, and the inner neck can be replaced once the inner neck is damaged, so that the whole flange does not need to be replaced, and the cost is saved;
secondly, the method comprises the following steps: the middle part of the inner neck is provided with the convex part which is abutted against the top surface of the connecting part, so that the impact on the threaded connection part when the petroleum pipeline is extruded can be effectively relieved, and the impact resistance is good;
thirdly, the method comprises the following steps: the connecting part plays a role in protecting the threaded connection part, so that the impact resistance is further enhanced;
fourthly: the top of the connecting part is provided with the annular groove, so that a three-dimensional welding surface is formed between the petroleum pipe body and the annular groove after welding, and the stability is greatly improved;
fifth, the method comprises the following steps: set up double-deck bolt hole, further improve flange joint's firmness and leakproofness.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a flange body, 1.1 is a connecting portion, 1.2 is a through hole, 1.3 is an internal thread, 1.4 is a first seal ring, 1.5 is a first bolt hole, 1.6 is a second bolt hole, 2 is an internal neck, 2.1 is an external thread, 2.2 is a protrusion, 2.3 is a second seal ring, 2.4 is an annular groove.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The high-strength impact-resistant butt welding flange with the neck for the petroleum pipeline mainly comprises a disc-shaped flange body 1 and an inner neck 2, wherein a connecting part 1.1 protruding outwards is arranged at the center of the flange body 1; the center of the connecting part 1.1 is provided with a through hole 1.2, an internal thread 1.3 is arranged in the direction of the elongation of the hole wall of the through hole 1.2, and a first sealing ring 1.4 is arranged below the internal thread 1.3; the lower part of the outer wall of the inner neck 2 is provided with an external thread 2.1, and the lower part of the outer wall of the inner neck 2 is connected with the through hole 1.2 through a thread; 2 outer wall middle parts of inner neck set up annular bulge 2.2, bulge 2.2 offsets with connecting portion 1.1 top surface, still set up second sealing washer 2.3 between bulge 2.2 and the connecting portion 1.1 top surface, 2 top surfaces of inner neck still set up annular groove 2.4, evenly set up first bolt hole 1.5 on the 1.2 outside circumference circles of through-hole on the flange body 1, evenly set up second bolt hole 1.6 on the 1.5 outside circumference circles of first bolt hole.
The flange body 1 and the connecting part 1.1 which protrudes outwards are integrally formed, and the first sealing ring 1.4 and the second sealing ring 2.3 are arranged, so that the sealing property of the inner neck 2 and the through hole 1.2 can be improved, and the impact resistance can be enhanced; and if the inner neck 2 is damaged or the welding part is damaged, only the inner neck 2 needs to be replaced, and the replacement cost is low.
The top surface of the inner neck 2 is also provided with an annular groove 2.4, thus a solid welding surface is formed between the welded petroleum pipe body and the annular groove 2.4 as well as the top surface of the inner neck 2, thereby greatly improving the welding stability.
The inner neck 2 may be in the shape of a straight cylinder, or may be in the shape of a straight cylinder at the bottom and a cone at the top.
The present invention is not limited to the high strength impact resistant neck butt welding flange for petroleum pipeline according to the above embodiments, and those skilled in the art can make various changes according to the above embodiments, but any changes equivalent or similar to the present invention are also intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. Petroleum pipeline is with anti neck butt welding flange of taking of high strength impact, its characterized in that: the flange mainly comprises a disc-shaped flange body and an inner neck, wherein the center of the flange body is provided with a connecting part which protrudes outwards; the center of the connecting part is a through hole, an internal thread is arranged in the direction of the extension degree of the hole wall of the through hole, and a first sealing ring is arranged below the internal thread; the lower part of the outer wall of the inner neck is provided with an external thread, and the lower part of the outer wall of the inner neck is connected with the through hole through a thread; the middle part of the outer wall of the inner neck is provided with an annular protruding part which is propped against the top surface of the connecting part.
2. The high-strength impact-resistant butt welding flange with the neck for the petroleum pipeline according to claim 1, is characterized in that: and a second sealing ring is also arranged between the convex part and the top surface of the connecting part.
3. The high-strength impact-resistant butt welding flange with the neck for the petroleum pipeline according to claim 1, is characterized in that: the top surface of the inner neck is also provided with an annular groove.
4. The high-strength impact-resistant butt welding flange with the neck for the petroleum pipeline according to claim 1, is characterized in that: first bolt holes are uniformly formed in the circumferential ring on the outer side of the through hole in the flange body.
5. The high-strength impact-resistant neck-butt welding flange for the petroleum pipeline according to claim 4, wherein: and second bolt holes are uniformly formed in the circumferential ring on the outer side of the first bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920900433.0U CN210196715U (en) | 2019-06-17 | 2019-06-17 | High-strength impact-resistant neck-equipped welding neck flange for petroleum pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920900433.0U CN210196715U (en) | 2019-06-17 | 2019-06-17 | High-strength impact-resistant neck-equipped welding neck flange for petroleum pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210196715U true CN210196715U (en) | 2020-03-27 |
Family
ID=69870792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920900433.0U Expired - Fee Related CN210196715U (en) | 2019-06-17 | 2019-06-17 | High-strength impact-resistant neck-equipped welding neck flange for petroleum pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210196715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571088A (en) * | 2020-05-11 | 2020-08-25 | 海盐县法兰厂 | High-strength welding neck flange and processing method thereof |
-
2019
- 2019-06-17 CN CN201920900433.0U patent/CN210196715U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571088A (en) * | 2020-05-11 | 2020-08-25 | 海盐县法兰厂 | High-strength welding neck flange and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 |