Socket welding flange based on steel pipe connection
By adding stainless steel protective shells and fill pads to the steel pipe connection of the socket welding flange, the damage problem of welding points under the action of rainwater and water mist is solved, extending the service life and reducing maintenance costs.
Patent Information
- Application Number
- CN202420973173.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
After long-term use of the socket welding flange, especially under the action of rainwater and water mist, the welding points are prone to damage, resulting in pipeline leakage and increased maintenance costs.
Add a stainless steel protective shell and a filling pad at the socket welding flange welding points of the steel pipe connection to prevent rainwater and water mist from directly contacting the welding points. Use a stainless steel protective shell to connect to the outer wall of the annular boss and use the filling pad to connect to the annular boss. Contact to isolate the welding points from the outside world.
It effectively extends the service life of the socket welding flange, reduces maintenance costs, and prevents erosion and leakage of welding points.
Smart Images
Figure CN222255442U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a socket welding flange, in particular to a socket welding flange based on steel pipe connection, and belongs to the technical field of flanges. Background Art
[0002] Socket welding flange is a kind of flange which is welded to the steel pipe at one end and bolted at the other end. Among various pipeline connections, using flanges to connect pipelines is an indispensable pipeline connection method.
[0003] When the socket welding flange is in use, a steel pipe is welded at one end of the socket welding flange, and the other end is connected with a corresponding socket welding flange with bolts. When the steel pipe needs to be installed outdoors, the joints of the steel pipe are generally connected using socket welding flanges. After the socket welding flange has been used for a long time, the welding point between the socket welding flange and the steel pipe is prone to damage under the action of rain and water mist, which not only causes pipeline leakage, but also increases maintenance costs and wastes manpower and material resources.
[0004] Therefore, it is urgent to improve the socket welding flange based on steel pipe connection to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of the utility model is to provide a socket welding flange based on a steel pipe connection. A stainless steel protective shell is added to the welding point of the socket welding flange connected to the steel pipe. The stainless steel protective shell and a filling pad are used to protect the welding point between the steel pipe and the socket welding flange, thereby avoiding direct contact between rainwater and water mist and the welding point, making the welding point between the socket welding flange and the steel pipe no longer easily corroded, thereby extending the service life of the socket welding flange and reducing the maintenance cost.
[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model includes: comprising a flange, an annular boss is fixedly connected to the side wall of one side of the flange, the annular boss is connected to the flange, and the central axis of the annular boss is colinear with the central axis of the flange, a welding chamfer is provided on the inner side wall of the annular boss away from the flange, a sleeve chamfer is provided on the outer side wall of the annular boss away from the flange, an annular step is fixedly connected to the inner wall of the flange, a steel pipe is fixedly installed on the flange and the inner wall of the annular boss, one end of the steel pipe is in contact with the side wall of the annular step close to the annular boss, the outer wall of the steel pipe is welded to the annular boss and the annular step, and the side wall of the annular boss away from the flange is connected to a protective component for protecting the welding point.
[0007] Preferably, the protective assembly includes a filling pad and a stainless steel protective shell, the filling pad is fixedly mounted on the side wall of the annular boss away from the flange, the stainless steel protective shell is sleeved on the outer wall of the annular boss, and the inner wall of one end of the stainless steel protective shell is in contact with the side wall of the filling pad away from the annular boss.
[0008] Preferably, a plurality of mounting holes are provided on a side wall of one side of the flange plate, and the plurality of mounting holes are used for fixing and mounting the socket welding flanges by bolts.
[0009] Preferably, a through hole is formed on one end of the stainless steel protective shell away from the flange, and the outer wall of the steel pipe is in contact with the inner wall of the filling pad and the inner wall of the through hole.
[0010] Preferably, a sealing boss is fixedly connected to one end of the flange away from the annular boss, the sealing boss is communicated with the flange, and the center axis of the sealing boss is collinear with the center axis of the flange. A sealing boss is fixedly connected to one end of the flange away from the annular boss, the sealing boss is communicated with the flange, and the center axis of the sealing boss is collinear with the center axis of the flange.
[0011] Preferably, a chamfer is provided on an outer wall of the sealing boss on a side away from the flange.
[0012] Preferably, the inner wall of one end of the stainless steel protective shell abutting against the flange is provided with a chamfer.
[0013] The utility model has at least the following beneficial effects:
[0014] 1. By adding a stainless steel protective shell to the welding point of the socket welding flange connected to the steel pipe, the stainless steel protective shell and the filling pad are used to protect the welding point between the steel pipe and the socket welding flange, avoiding direct contact between rain and water mist and the welding point, making the welding point between the socket welding flange and the steel pipe no longer easily corroded, extending the service life of the socket welding flange and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0016] Figure 1 An isometric structural schematic diagram provided for the utility model;
[0017] Figure 2 A partial structural schematic diagram provided for the utility model;
[0018] Figure 3 A partial structural sectional view provided by the utility model;
[0019] Figure 4 The utility model provides Figure 3 The enlarged schematic diagram at A in the middle;
[0020] Figure 5 This is a schematic diagram of the stainless steel protective shell structure provided by the utility model.
[0021] In the figure, 1. flange; 2. annular boss; 3. welding chamfer; 4. sleeve chamfer; 5. annular step; 6. steel pipe; 7. protection component; 8. filling pad; 9. stainless steel protective shell; 10. mounting hole; 11. through hole; 12. sealing boss; 13. chamfer one; 14. chamfer two. DETAILED DESCRIPTION
[0022] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0023] like Figure 1-Figure 5 As shown, the socket welding flange based on steel pipe connection provided in this embodiment has an annular boss 2 fixedly connected to the side wall of one side of the flange 1, and the annular boss 2 is used to be welded with the steel pipe 6. The annular boss 2 is connected to the flange 1, and the central axis of the annular boss 2 is colinear with the central axis of the flange 1. A welding chamfer 3 is provided on the inner side wall of the annular boss 2 away from the flange 1, and the welding chamfer 3 is the welding place with the steel pipe 6. A sleeve chamfer 4 is provided on the outer side wall of the annular boss 2 away from the flange 1, and an annular step 5 is fixedly connected to the inner wall of the flange 1. Steel pipe 6 is fixedly installed on the inner walls of the flange 1 and the annular boss 2, one end of the steel pipe 6 is in contact with the side wall of the annular step 5 close to the annular boss 2, and the outer wall of the steel pipe 6 is welded to the annular boss 2 and the annular step 5. A protective component 7 for protecting the welding point is connected to the side wall of the annular boss 2 away from the flange 1, and the annular step 5 is used to limit and weld the steel pipe 6 inserted into the socket welding flange.
[0024] Secondly, if Figure 3 as well as Figure 4 As shown, the protection component 7 includes a filling pad 8 and a stainless steel protective shell 9. The filling pad 8 is fixedly mounted on the side wall of the annular boss 2 away from the flange 1. The stainless steel protective shell 9 is sleeved on the outer wall of the annular boss 2. The inner wall of one end of the stainless steel protective shell 9 is in contact with the side wall of the filling pad 8 away from the annular boss 2. The filling pad 8 is used to fill the gap between the stainless steel protective shell 9 and the annular boss 2. The stainless steel protective shell 9 is used to isolate the welding point between the annular boss 2 and the steel pipe 6 from direct contact with the outside world.
[0025] Further, such as Figure 1 , Figure 4 as well as Figure 5 As shown, a plurality of mounting holes 10 are provided on the side wall of one side of the flange 1, and the plurality of mounting holes 10 are used for fixing and installing the socket welding flanges by bolts. A through hole 11 is provided on the end of the stainless steel protective shell 9 away from the flange 1, and the outer wall of the steel pipe 6 is in contact with the inner wall of the filling pad 8 and the inner wall of the through hole 11, and the through hole 11 is used for the stainless steel protective shell 9 to be sleeved on the steel pipe 6.
[0026] Furthermore, if Figure 1 , Figure 2 ,as well as Figure 3 As shown, a sealing boss 12 is fixedly connected to one end of the flange 1 away from the annular boss 2. The sealing boss 12 is connected to the flange 1. The central axis of the sealing boss 12 is colinear with the central axis of the flange 1. The sealing boss 12 is used to interfere with the butt-jointed socket welding flange.
[0027] Furthermore, if Figure 1 , Figure 2 as well as Figure 3 As shown, the outer wall of the sealing boss 12 away from the flange 1 is provided with a chamfer 13, and the inner wall of the end of the stainless steel protective shell 9 abutting the flange 1 is provided with a chamfer 2 14, which is used to facilitate the installation of the stainless steel protective shell 9 on the annular boss 2.
[0028] like Figure 1-Figure 5 As shown, the principle of the socket welding flange based on steel pipe connection provided in this embodiment is as follows: when it is necessary to connect the socket welding flange on the steel pipe 6, first, the stainless steel protective shell 9 is put on the steel pipe 6, and the filling pad 8 is put on. Then, the steel pipe 6 is inserted into the socket welding flange from the direction of the annular boss 2 until the steel pipe 6 is inserted into the contact with the annular step 5. Then, the steel pipe 6 and the annular boss 2 are welded as one at the welding chamfer 3, and the contact position of the steel pipe 6 and the annular step 5 is welded to connect the steel pipe 6 and the socket welding flange as one. After the welding is completed, the filling pad 8 is moved to the position in contact with the annular boss 2, and the stainless steel protective shell 9 is put on the annular boss 2 until the stainless steel protective shell 9 and the filling pad 8 are in close contact and the filling pad 8 and the annular boss 2 are in close contact.
[0029] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.
[0030] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.
[0031] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A socket welding flange based on a steel pipe connection, comprising a flange plate (1), characterized in that: An annular boss (2) is fixedly connected to a side wall of one side of the flange (1); the annular boss (2) is connected to the flange (1), and the central axis of the annular boss (2) is colinear with the central axis of the flange (1); a welding chamfer (3) is provided on the inner side wall of the annular boss (2) away from the flange (1); a sleeve chamfer (4) is provided on the outer side wall of the annular boss (2) away from the flange (1); and a flange (1) is fixedly connected to the inner wall of the flange (1). An annular step (5) is fixedly connected thereto, and a steel pipe (6) is fixedly mounted on the inner wall of the flange (1) and the annular boss (2), one end of the steel pipe (6) contacts the side wall of the annular step (5) close to the annular boss (2), the outer wall of the steel pipe (6) is welded to the annular boss (2) and the annular step (5), and a protective component (7) for protecting the welding point is connected to the side wall of the annular boss (2) away from the flange (1).
2. The socket welding flange based on steel pipe connection according to claim 1 is characterized in that: The protective assembly (7) comprises a filling pad (8) and a stainless steel protective shell (9); the filling pad (8) is fixedly mounted on a side wall of the annular boss (2) away from the flange (1); the stainless steel protective shell (9) is sleeved on an outer wall of the annular boss (2); an inner wall of one end of the stainless steel protective shell (9) is in contact with a side wall of the filling pad (8) away from the annular boss (2).
3. The socket welding flange based on steel pipe connection according to claim 1, characterized in that: A plurality of mounting holes (10) are provided on a side wall of one side of the flange plate (1), and the plurality of mounting holes (10) are used for fixing and mounting the socket welding flanges with bolts.
4. The socket welding flange based on steel pipe connection according to claim 2, characterized in that: A through hole (11) is formed on one end of the stainless steel protective shell (9) away from the flange (1), and the outer wall of the steel pipe (6) is in contact with the inner wall of the filling pad (8) and the inner wall of the through hole (11).
5. The socket welding flange based on steel pipe connection according to claim 1, characterized in that: A sealing boss (12) is fixedly connected to one end of the flange (1) away from the annular boss (2); the sealing boss (12) is connected to the flange (1); and the central axis of the sealing boss (12) is colinear with the central axis of the flange (1).
6. The socket welding flange based on steel pipe connection according to claim 5, characterized in that: An outer wall of the sealing boss (12) on a side away from the flange (1) is provided with a chamfer (13).
7. The socket welding flange based on steel pipe connection according to claim 2, characterized in that: The inner wall of one end of the stainless steel protective shell (9) abutting against the flange (1) is provided with a chamfer (14).