Integrally-formed assembly pipe
Through integrated molding technology, weldless connection between the main body of the assembly pipe, the pipe cap and the inlet pipe is achieved, solving the problem that existing assembly pipes are prone to cause weld bursts and leakage, and improving the sealing performance and equipment stability.
Patent Information
- Application Number
- CN202420893652.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Due to the presence of welds, the existing assembly pipes are prone to burst and leaking in the case of vibration and other conditions.
The integrated molding technology is adopted, through pulling and rolling forging, weldless connections between the main pipe body, the pipe cap and the inlet pipe are formed, forming an integrated molding structure.
It improves the sealing performance of the assembly tube, avoids the risk of weld burst and leakage, and enhances the stability and service life of the equipment.
Smart Images
Figure CN222503091U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an integrally formed collecting pipe. Background Art
[0002] The gathering pipe is one of the tank heater accessories for projects such as CNPC, Sinopec, and chemical industry. It enters the gas branch pipe through the main pipe to collect other mixed gases and mix them.
[0003] The existing collecting pipe includes a main pipe, a three-way pipe fitting and a pipe cap. The two ends of the main pipe are respectively welded to the three-way pipe fitting and the pipe cap, so that there are at least two welds on the collecting pipe. During use, when vibration occurs, the welds are likely to burst and cause leakage. Summary of the invention
[0004] The utility model aims to provide an integrally formed collecting pipe in view of the defects of the prior art.
[0005] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are adopted:
[0006] An integrally formed collecting pipe comprises a main body, a first inlet pipe joint and a first group of pipe joints are drawn on one side of the main body, a second inlet pipe joint and a second group of pipe joints are drawn on the other side, and pipe caps and end caps are respectively formed at both ends by rolling and forging; wherein the first inlet pipe joint, the second inlet pipe joint and the end cap constitute an inlet pipe; the main body, the pipe cap and the inlet pipe form an integrally formed structure.
[0007] Furthermore, the inlet pipe is an elliptical structure.
[0008] Furthermore, the main pipe is a seamless steel pipe.
[0009] Furthermore, the seamless steel pipe is a #seamless steel pipe.
[0010] Furthermore, the one-piece formed collecting pipe of the utility model also includes a steel pipe hole drawing machine, which is used to respectively draw the first inlet pipe joint, the first group of pipe joints, the second inlet pipe joint and the second group of pipe joints on the main pipe body.
[0011] Furthermore, the integrally formed collecting pipe of the utility model also includes a hydraulic forging machine, which is used to roll and forge pipe caps and inlet pipes at both ends of the main pipe body.
[0012] Furthermore, the first inlet pipe joint and the second inlet pipe joint are symmetrical through a longitudinal center line of the main pipe body.
[0013] Furthermore, the integrally formed collecting pipe of the utility model also includes an arc transition, and the first inlet pipe joint, the first group of pipe joints, the second inlet pipe joint, and the second group of pipe joints are all connected to the main pipe body through an arc transition.
[0014] Furthermore, the thickness of the first inlet pipe joint, the first group of pipe joints, the second inlet pipe joint, and the second group of pipe joints is the same as the thickness of the main pipe body.
[0015] Furthermore, the diameters of the first inlet pipe joint, the first group of pipe joints, the second inlet pipe joint, and the second group of pipe joints are all φ20 mm to φ114 mm; and the diameter of the main pipe body (500) is φ60 mm to φ219 mm.
[0016] The utility model has the following improvements over the prior art:
[0017] The collecting pipe of the utility model is an integrally formed structure, that is, the first inlet pipe joint, the first group of pipe joints, the second inlet pipe joint and the second group of pipe joints are drawn on the main pipe body, so that the first inlet pipe joint, the first group of pipe joints, the second inlet pipe joint and the second group of pipe joints are all integrally formed with the main pipe body, and there is no weld connection between the main pipe body, which is conducive to improving the airtightness; and the two ends of the main pipe body are connected to the pipe cap and the inlet pipe by rolling forging, so that the main pipe body, the pipe cap and the inlet pipe are integrally formed without a weld connection, which overcomes the problem of the existing main pipe body, the pipe cap and the inlet pipe having a weld, and can effectively improve the overall airtightness of the collecting pipe itself. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0019] Figure 1 This is a schematic diagram of the structure of the integrated collecting pipe of the utility model;
[0020] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0021] Names and serial numbers of components in the figure:
[0022] 1-assembling pipe, 100-inlet pipe, 101-first inlet pipe joint, 102-second inlet pipe joint, 103-end, 200-first group of pipe joints, 201-first outlet pipe, 202-second outlet pipe, 203-third outlet pipe, 300-second pipe joint, 400-pipe cap, 500-main pipe body, 600-arc transition. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solution in the present application, the technical solution of the present utility model will be clearly and completely described below in conjunction with the drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.
[0024] Embodiment 1:
[0025] like Figure 1-2 As shown, the utility model is an integrally formed collecting pipe, including a collecting pipe 1; the collecting pipe 1 includes a main pipe body 500, one side of the main pipe body 500 is drawn with a first inlet pipe joint 101 and a first group of pipe joints 200, and the other side is drawn with a second inlet pipe joint 102 and a second group of pipe joints 300, and both ends are respectively forged with a pipe cap 400 and a head 103 by rolling; wherein, the first inlet pipe joint 101, the second inlet pipe joint 102 and the head 103 constitute the inlet pipe 100; the main pipe body 500, the pipe cap 400 and the inlet pipe 100 form an integrally formed structure.
[0026] The first inlet pipe joint 101 and the second inlet pipe joint 102 are symmetrical about the longitudinal center line of the main pipe body 500 , which is conducive to smooth flow of the medium between the first inlet pipe joint 101 and the second inlet pipe joint 102 .
[0027] It should be noted that the first inlet pipe joint 101, the first group of pipe joints 200, the second inlet pipe joint 102, and the second group of pipe joints 300 are all integrally formed to avoid weld connections on the main pipe body, thereby preventing the collecting pipe from leaking.
[0028] The inlet pipe 100 and the pipe cap 400 are both formed by rolling forging, which can avoid the inlet pipe 100, the pipe cap 400 and the main body 500 being connected by welding, thereby preventing welds from appearing on the main body and ensuring that the main body itself will not have weld leakage problems.
[0029] One structure of the main body may be that the main body 500 is a seamless steel pipe. The seamless steel pipe is a 20# seamless steel pipe. It is understood that the seamless steel pipe is a steel pipe made by punching a whole round steel bar without a weld on the surface. This can effectively ensure that the main body itself has good sealing performance.
[0030] like Figure 1 and 2As shown, the first group of pipe joints 200 includes a first outlet pipe 201, a second outlet pipe 202, and a third outlet pipe 203. The first outlet pipe 201, the second outlet pipe 202, and the third outlet pipe 203 are arranged at intervals along the length direction of the main body 500. The first outlet pipe 201, the second outlet pipe 202, and the third outlet pipe 203 are connected to the main body 500 by an arc transition 600, so the first outlet pipe 201, the second outlet pipe 202, and the third outlet pipe 203 are integrally formed with the main body 50.
[0031] like Figure 1 and 2 As shown, the second inlet pipe joint 102 and the second group of pipe joints 300 are both connected to the main pipe body 500 via an arc transition 16 .
[0032] A structure for rolling forging is provided, and a hydraulic forging machine is added. The hydraulic forging machine is used to roll and forge the two ends of the main pipe body 500 to form a pipe cap 400 and an inlet pipe 100. The main pipe body 500 and the pipe cap 400 and the inlet pipe 100 form an integrally formed structure. There is no weld between the main pipe body 500 and the pipe cap 400 and the inlet pipe 100.
[0033] The thickness of the first inlet pipe joint 101, the first group of pipe joints 200, the second inlet pipe joint 102, and the second group of pipe joints 300 is the same as the thickness of the main pipe body 500. The thickness of the first inlet pipe joint 101, the first group of pipe joints 200, the second inlet pipe joint 102, and the second group of pipe joints 300 are all the same, which can greatly help the welding efficiency when they are butt-welded with the external branch pipe, ensure the quality of the weld, and meet the 100% radiographic flaw detection requirements.
[0034] A specification of pipe joints and main pipe bodies is given. The diameters of the first inlet pipe joint 101, the first group of pipe joints 200, the second inlet pipe joint 102, and the second group of pipe joints 300 are all φ20mm~φ114mm; that is, the available diameters are φ20, φ32, φ38, φ45, φ57, φ60, φ76, φ89, φ108 or φ114mm, etc.
[0035] The diameter of the main pipe 500 is φ60 mm to φ219 mm. The diameters that can be used are φ60, φ76, φ89, φ108, φ133, φ159 or φ219 mm.
[0036] Processing method of main body:
[0037] The first inlet pipe joint 101 and the first group of pipe joints 200 are first drawn out on the main body by a steel pipe drawing machine, and then the second inlet pipe joint 102 and the second group of pipe joints 300 are drawn out. Then, high-frequency heating is used to reach the welding point and then a hydraulic forging machine is used to roll and forge a pipe cap 400. The pipe cap 400 is sealed at one end of the main body without a weld. High-frequency heating is also used to reach the welding point and then a hydraulic forging machine is used to roll and forge a sealing head 103 on the other end. The first inlet pipe joint 101, the second inlet pipe joint 102 and the sealing head 103 constitute the inlet pipe 100, realizing a weld-free connection between the inlet pipe and the main body, and greatly improving the airtightness of the assembly pipe.
[0038] In some optional embodiments, a structural shape of the inlet pipe is provided. The inlet pipe 100 is an elliptical structure, which can facilitate unimpeded flow of the medium in the pipe body.
[0039] In some optional embodiments, a drawing structure is provided, with a steel pipe hole drawing machine added. The steel pipe hole drawing machine is used to draw the first inlet pipe joint 101, the first group of pipe joints 200, the second inlet pipe joint 102 and the second group of pipe joints 300 on the main body 500 respectively.
[0040] One drawing processing method is: first draw out the first inlet pipe joint 101 and the first group of pipe joints 200, and then draw out the second inlet pipe joint 102 and the second group of pipe joints 300; the first inlet pipe joint 101 and the second inlet pipe joint 102 are symmetrical with respect to the longitudinal center line of the main pipe body.
[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.
Claims
1. One-piece forming collecting pipe, characterized by: The collecting pipe (1) comprises a main pipe body (500), a first inlet pipe joint (101) and a first group of pipe joints (200) are drawn on one side of the main pipe body (500), a second inlet pipe joint (102) and a second group of pipe joints (300) are drawn on the other side, and a pipe cap (400) and a sealing head (103) are respectively formed at both ends by rolling and forging; The first inlet pipe joint (101), the second inlet pipe joint (102) and the sealing head (103) constitute an inlet pipe (100); The main pipe body (500), the pipe cap (400) and the inlet pipe (100) form an integrally formed structure.
2. The one-piece collecting pipe according to claim 1, characterized in that: The inlet pipe (100) is an elliptical structure.
3. The one-piece collecting pipe according to claim 1, characterized in that: The main pipe (500) is a seamless steel pipe.
4. The one-piece collecting pipe according to claim 3, characterized in that: The seamless steel pipe is a 20# seamless steel pipe.
5. The one-piece forming collecting pipe according to claim 1, characterized in that: It also includes a steel pipe hole drawing machine, which is used to respectively draw the first inlet pipe joint (101), the first group of pipe joints (200), the second inlet pipe joint (102) and the second group of pipe joints (300) on the main pipe body (500).
6. The one-piece forming collecting pipe according to claim 1, characterized in that: It also includes a hydraulic forging machine, which is used to roll and forge the two ends of the main pipe (500) into pipe caps (400) and an inlet pipe (100).
7. The one-piece forming collecting pipe according to claim 1, characterized in that: The first inlet pipe joint (101) and the second inlet pipe joint (102) are symmetrical through the longitudinal center line of the main pipe body (500).
8. The one-piece collecting pipe according to any one of claims 1 to 7, characterized in that: It also includes an arc transition (600), wherein the first inlet pipe joint (101), the first group of pipe joints (200), the second inlet pipe joint (102), and the second group of pipe joints (300) are all connected to the main pipe body (500) through an arc transition.
9. The one-piece collecting pipe according to claim 8, characterized in that: The thickness of the first inlet pipe joint (101), the first group of pipe joints (200), the second inlet pipe joint (102), and the second group of pipe joints (300) is the same as the thickness of the main pipe body (500).
10. The one-piece collecting pipe according to claim 8, characterized in that: The diameters of the first inlet pipe joint (101), the first group of pipe joints (200), the second inlet pipe joint (102), and the second group of pipe joints (300) are all φ20 mm to φ114 mm; The diameter of the main pipe (500) is φ60 mm to φ219 mm.