CN118224421A - Corner connection structure - Google Patents
Corner connection structure Download PDFInfo
- Publication number
- CN118224421A CN118224421A CN202410354272.5A CN202410354272A CN118224421A CN 118224421 A CN118224421 A CN 118224421A CN 202410354272 A CN202410354272 A CN 202410354272A CN 118224421 A CN118224421 A CN 118224421A
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- Prior art keywords
- corner
- pipe
- diameter
- connection structure
- connection
- 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.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims description 5
- 230000003628 erosive effect Effects 0.000 description 39
- 239000012530 fluid Substances 0.000 description 13
- 239000002245 particle Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
An object of the present invention is to provide a corner connection structure including a first connection portion extending in a first direction, a second connection portion extending in a second direction, and a corner portion, the first connection portion being connected to a first pipe, the second connection portion being connected to a second pipe, wherein the first connection portion and the second connection portion are connected to each other at the corner portion, and a diameter of the corner connection structure at the corner portion is larger than diameters of the first pipe and the second pipe.
Description
Technical Field
The present invention relates to a corner connection structure for connecting pipes in a high-pressure manifold.
Background
In connection with high pressure manifolds, it is often necessary to use a three-way or four-way corner connection structure to connect two pipes extending in different directions.
However, in the prior art, there is an intersecting line at the junction of the two pipes, i.e. in the three-way or four-way corner connection. When the high-pressure fluid in the high-pressure manifold turns at the corner in the corner connecting structure, erosion at the intersecting line in the corner connecting structure is serious.
Generally, after a working platform of the high-pressure manifold finishes working, the three-way or four-way corner connection structure in the high-pressure manifold has macroscopic abrasion, and sometimes larger erosion pits are formed near intersecting lines. Such wear or pitting will seriously affect the service life of the corner connection. And the repair difficulty of the corner connection structure installed in the high-pressure manifold is great, which leads to an increase in maintenance costs.
Accordingly, a corner connection structure capable of reducing high-pressure liquid erosion damage at intersecting lines is desired.
Disclosure of Invention
In order to solve the above problems, the present invention provides a corner connecting structure capable of reducing erosion damage of high-pressure liquid at an intersecting line.
In one aspect of the present invention, a corner connection structure includes a first connection portion extending in a first direction, a second connection portion extending in a second direction, and a corner portion, the first connection portion being connected to a first pipe, the second connection portion being connected to a second pipe, wherein the first connection portion and the second connection portion are connected to each other at the corner portion, and a diameter of the corner connection structure at the corner portion is larger than diameters of the first pipe and the second pipe.
In still another aspect of the present invention, the corner portion is formed as an inclined surface that connects the first connection portion and the second connection portion.
In still another aspect of the present invention, a maximum diameter between adjacent corner portions is 1 to 2 times a pipe diameter of the first pipe or the second pipe.
In still another aspect of the present invention, the inclined surface has an angle of 10 ° to 45 ° with respect to the first direction or the second direction.
In still another aspect of the present invention, a length of a region having a diameter larger than diameters of the first pipe and the second pipe in the corner connecting structure is equal to the maximum diameter.
In still another aspect of the present invention, a length of the inclined surface in the first direction or the second direction is 50mm to 80mm.
In still another aspect of the present invention, the corner portion is formed as a rounded corner connecting the first connection portion and the second connection portion.
In still another aspect of the present invention, a maximum diameter between adjacent corner portions is 1.3 to 1.5 times a pipe diameter of the first pipe or the second pipe.
In yet another aspect of the present invention, the transition surface from the maximum diameter to the pipe diameter is at an angle of 5 ° to 10 ° with respect to the first direction or the second direction.
In yet another aspect of the present invention, the length of the region of the corner connection structure having a diameter greater than the diameter of the pipe is 2/3 of the length of the corner connection structure in the first direction or the second direction.
Drawings
Fig. 1A shows a front view of the corner connecting structure of the first embodiment.
Fig. 1B shows a cross-sectional view of the corner connection structure shown in fig. 1A.
Fig. 2 shows the erosion result of the corner connection structure in the first embodiment in the operating state.
Fig. 3A shows a front view of the corner connecting structure in the second embodiment.
Fig. 3B shows a cross-sectional view of the corner structure shown in fig. 3A.
Fig. 4 shows a specific structure of the connecting portion in the corner connecting structure of the second embodiment.
Fig. 5a-c show the erosion results in a corner connection having a first set of parameters in the operating state.
Fig. 6a-c show the erosion results in a corner connection with a second set of parameters in the operating state.
Fig. 7a-b show the erosion results in a corner connection with a third set of parameters in the operating state.
Fig. 8A shows a front view of a three-way corner connection structure of the prior art.
Fig. 8B shows a front view of a four-way corner connection structure of the prior art.
Fig. 9 shows a cross-sectional view of a corner connection structure of the prior art.
Fig. 10A shows a position with the largest erosion amount in the conventional four-way corner connection structure.
Fig. 10B shows the erosion result in the conventional four-way corner connection structure in the operating state.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. For example, the definition of a range of values is to be understood by those skilled in the art as well as within the limits of conventional process manufacturing errors, and is not to be limited to only that fixed value.
Hereinafter, the improved direction of the corner connecting structure of the present invention will be described by the following sequence.
1. Overview of corner connection structure
2. First embodiment of corner connecting Structure
3. Second embodiment of corner connecting Structure
4. Corner connecting structure in the prior art
Hereinafter, the above will be described with reference to the drawings and the reference numerals.
1. Overview of corner Structure
In the present invention, the corner connection structure is improved by: the aperture size of the corner structure in the corner connecting structure is enlarged, the contact area of the corner connecting structure and the high-pressure fluid is increased, so that erosion damage of the high-pressure fluid to the corner connecting structure at an intersecting line can be reduced, the erosion rate is delayed, and the service life of the corner connecting structure in a high-pressure manifold is prolonged.
Specifically, in the present invention, the above-described advantageous technical effects of reducing erosion damage and extending the service life of the corner connection structure can be obtained by enlarging the aperture size of the corner connection structure and connecting the passages in different directions through the inclined surface at the corner portion in the corner connection structure, or by enlarging the aperture size of the corner connection structure and connecting the passages in different directions through the rounded corner at the corner portion in the corner connection structure.
However, the improved structure of the present invention is not limited thereto, and is included in the concept of the present invention as long as the corner connection structure can expand the aperture size at the corner structure with respect to the pipe to which it is connected.
Hereinafter, the above two modifications of the present invention will be specifically described with reference to the accompanying drawings.
2. First embodiment of corner Structure
Fig. 1A shows a front view of the corner connecting structure in the first embodiment, and fig. 1B shows a cross-sectional view of the corner connecting structure shown in fig. 1A.
Referring to fig. 1A, the corner connection structure 1 in the first embodiment may connect pipes (not shown) in different directions and has a corner portion 5 having a larger aperture size than the diameter of the pipe.
Specifically, referring to the sectional view of fig. 1B, the corner connecting structure 1 includes connecting portions 2 and 3 extending in different directions to connect with pipes, the connecting portion 2 being connected to a pipe (not shown) extending in the horizontal direction in the drawing, and the connecting portion 3 being connected to a pipe (not shown) extending in the vertical direction in the drawing.
The connecting parts 2 and 3 are connected to each other at a corner portion 5 of the corner connecting structure 1, which corner portion 5 is formed as an inclined surface 4. That is, the connecting portions 2 and 3 are connected by the inclined surface 4 at the corner portion 5.
The aperture size at the corner portions 5 (i.e. the diameter between adjacent corner portions 5) is larger than the aperture size of the pipe, due to the way in which the connection portions 2 and 3 are connected by the inclined surface 4. Thereby, the contact area between the corner connecting structure 1 and the high-pressure fluid is enlarged, and erosion damage of the corner connecting structure by the high-pressure fluid at the intersecting line can be reduced.
Preferably, in the corner connecting structure 1, the maximum diameter W1 at the corner portion 5 is 1 to 2 times the pipe diameter W2 connected to the corner connecting structure 1.
In this first embodiment, the inclined surface 4 at the corner portion 5 may be further provided at an angle of 10 ° to 45 ° with respect to the extending direction of the pipe 2. In addition, the length W3 of the region of the corner connecting structure 1 having the aperture size larger than the pipe diameter is substantially equal to the maximum diameter W1 at the corner portion 5. In the present invention, the lengths W1 and W3 may be set to about 260mm.
The length W4 of the inclined surface 4 in the pipe extending direction is preferably 50mm to 80mm. However, the length of the region is not limited thereto, and a person skilled in the art may select an appropriate aperture size enlarging region length according to the operation requirement.
Fig. 2 shows the erosion result in the corner connection 1 in the operating state, wherein the operating state is set as follows:
simulating working conditions: the fluid pressure is 75MPa, the discharge capacity is 18m 3/min, and the sand ratio is 20%.
The material condition is as follows: the gravel density was 2650kg/m3, the particle diameter was set to 275 μm,
Setting conditions:
The inlet is set as a mass flow inlet, wherein the mass flow rate of fluid at the inlet is 266.01267kg/s initially, the mass flow rate of gravel particles is 144.33kg/s when the gravel particles are added, the incident speed is 20.0682m/s, the sand ratio is 20%, and the mass flow rate is 141.333kg/s;
The outlet was set as a pressure outlet, wherein the turbulence intensity was 0.194, the turbulence viscosity ratio was 10, and the pressure at the outlet was 75MPa.
In the above-described operation state, the cumulative erosion analysis result shown in fig. 2 is obtained. In the improved corner connection structure of the present invention, the maximum erosion amount is 0.0462 kg/square meter/s. The amount of erosion in conventional connection structures is typically 0.264 kg/square meter/s.
As can be seen from the above test results, the corner connection structure of the present invention can significantly reduce the erosion amount at the intersecting line due to the enlarged aperture diameter, as compared with the conventional connection structure.
3. Second embodiment of corner connecting Structure
Fig. 3A shows a front view of the corner connecting structure in the second embodiment, and fig. 3B shows a cross-sectional view of the corner structure shown in fig. 3A.
Referring to fig. 3A, the corner structure 1 in the second embodiment can also connect pipes (not shown) in different directions and has corner portions 5 with a larger aperture size than the diameter of the pipes.
Specifically, referring to the sectional view shown in fig. 3B, the corner connection structure 1 includes connection portions 2 and 3 extending in different directions to connect with pipes, the connection portion 2 being connected to a pipe (not shown) extending in the horizontal direction in the drawing, and the connection portion 3 being connected to a pipe (not shown) extending in the vertical direction in the drawing.
The connecting parts 2 and 3 are connected to each other at a corner portion 5 of the corner connecting structure 1.
Unlike the first embodiment, the corner portions 5 in the second embodiment are formed as rounded corners, and the aperture size at the corner portions 5 (i.e., the diameter between adjacent corner portions 5) is larger than that of the pipe. Thereby, the contact area between the corner connecting structure 1 and the high-pressure fluid is enlarged, and erosion damage of the corner connecting structure by the high-pressure fluid at the intersecting line can be reduced.
Preferably, in the corner connecting structure 1, the maximum diameter W5 at the corner portion 5 is 1.3 to 1.5 times the pipe diameter W2 connected to the corner connecting structure 1.
In this second embodiment, it is also possible to further provide that the angle 6 (reducing transition zone angle) of the transition surface of the corner connecting structure 1 from the diameter W5 to the diameter W2 with respect to the extending direction of the connecting portions 2 and 3 is 5 ° to 10 °.
In addition, the length W6 of the enlarged diameter region in the extending direction of the connecting portion 2 is about 2/3 of the length of the corner connecting structure 1.
The erosion of the corner connecting structure by high-pressure liquid can be reduced by enlarging the aperture size of the corner connecting structure relative to the pipeline, so that the erosion resistance of the corner connecting structure is improved, the erosion rate is delayed, and the service life of the corner connecting structure is prolonged.
Fig. 4 shows a specific structure of the connecting portion 2 according to the second embodiment. The connection 2 consists of a first zone 7, a second zone 8 and a third zone 9, wherein the first zone 7 is connected to the pipe with the same diameter as the pipe and with a first remaining length, the third zone 9 is adjacent to the corner portion 5 and with a maximum diameter W5 and a second remaining length, and the second zone 8 is located between the first zone 7 and the third zone 9 and with the above mentioned reducing transition zone angle 6.
In Table 1 below, corner connection structures with different parameters are set forth
Fig. 5a-c show the result of erosion in a corner connection 1 having the above-mentioned first set of parameters in an operating state, fig. 6a-c show the result of erosion in a corner connection 1 having the above-mentioned second set of parameters in an operating state, and fig. 7a-b show the result of erosion in a corner connection 1 having the above-mentioned third set of parameters in an operating state.
The operating states for fig. 5a to 7b are set as follows:
simulating working conditions: the fluid pressure is 75MPa, the discharge capacity is 18m 3/min, and the sand ratio is 20%.
The material condition is as follows: the gravel particle diameter was 275. Mu.m, and the gravel density was 2650kg/m 3.
Setting conditions:
The inlet was set as a mass flow inlet, the mass flow rate of the fluid at the inlet was 266.01267kg/s initially, the mass flow rate of the gravel particles was 144.33kg/s when the gravel particles were added, the incident speed was 20.0682m/s, the sand ratio was 20%, and the mass flow rate was 141.333kg/s.
The outlet was set as a pressure outlet, wherein the turbulence intensity was 0.194, the turbulence viscosity ratio was 10, and the pressure at the outlet was 75MPa.
In the above-described operating state, the cumulative erosion analysis results shown in fig. 5a to 7b were obtained. In the corner connecting structure of the second embodiment of the present invention, the maximum erosion amount is 0.0673 kg/square meter/s. As mentioned above, the amount of erosion in conventional connection structures is typically 0.264 kg/square meter/s.
As can be seen from the erosion results and test data results of fig. 5 a-7 b, the corner connection structure of the present invention can significantly reduce the erosion amount at the intersecting line compared to the conventional connection structure.
4. Corner connecting structure in the prior art
Fig. 8A shows a front view of a three-way corner connection structure in the prior art, and fig. 8B shows a front view of a four-way corner connection structure in the prior art.
Fig. 9 shows a cross-sectional view of a prior art corner connection 10. As can be seen from fig. 9, unlike the configuration of the present invention, the corner portion of the corner connection structure 10 has a nearly right-angle shape, and the diameter of the inner cavity of the corner connection structure 10 is the same as the diameter of the pipe connected thereto.
Fig. 10A shows a position with the largest erosion amount in the conventional four-way corner connection structure. Fig. 10B shows the erosion result in the conventional four-way corner connection structure in the operating state, in which the operating state is set as follows:
simulating working conditions: the fluid pressure is 75MPa, the discharge capacity is 18m 3/min, and the sand ratio is 20%.
The material condition is as follows: the gravel density was 2650kg/m3, the particle diameter was set to 275 μm,
Setting conditions:
The inlet is set as a mass flow inlet, wherein the mass flow rate of fluid at the inlet is 266.01267kg/s initially, the mass flow rate of gravel particles is 144.33kg/s when the gravel particles are added, the incident speed is 20.0682m/s, the sand ratio is 20%, and the mass flow rate is 141.333kg/s;
The outlet was set as a pressure outlet, wherein the turbulence intensity was 0.194, the turbulence viscosity ratio was 10, and the pressure at the outlet was 75MPa.
In the above-described operation state, the cumulative erosion analysis result as shown in fig. 10B is obtained. The maximum erosion amount in the conventional four-way corner connecting structure is 0.264 kg/square meter/s.
In contrast, the maximum erosion amount in the corner connection structure according to the first embodiment of the present invention is 0.0462 kg/square meter/s, and the maximum erosion amount in the corner connection structure according to the second embodiment is 0.0673 kg/square meter/s. It is apparent from this that the corner connection structure of the present invention can significantly reduce the amount of erosion at the intersecting line.
Compared with the prior art, the invention can reduce erosion at the intersecting line by enlarging the diameter of the inner cavity in the corner connecting structure, thereby prolonging the service life of the corner connecting structure.
While only the specific preferred structure of the present invention has been described above, those skilled in the art will recognize that the concept of the present invention is not limited to the above embodiments, and various changes can be made within the scope of the technology.
Claims (10)
1. A corner connection structure includes a first connection portion extending in a first direction, a second connection portion extending in a second direction, the first connection portion being connected to a first pipe, the second connection portion being connected to a second pipe,
Wherein the first and second connection portions are connected to each other at the corner portion, and the corner connection structure has a diameter at the corner portion that is larger than the diameters of the first and second pipes.
2. The corner connecting structure according to claim 1, wherein the corner portion is formed as an inclined surface that connects the first connecting portion and the second connecting portion.
3. The corner connecting structure according to claim 2, wherein a maximum diameter between adjacent corner portions is 1 to 2 times a pipe diameter of the first pipe or the second pipe.
4. The corner connecting structure according to claim 2, wherein the angle of the inclined surface with respect to the first direction or the second direction is 10 ° to 45 °.
5. The corner connection structure according to claim 3, wherein a length of a region having a diameter larger than diameters of the first pipe and the second pipe in the corner connection structure is equal to the maximum diameter.
6. The corner connecting structure according to claim 2, wherein a length of the inclined surface in the first direction or the second direction is 50mm to 80mm.
7. The corner connecting structure according to claim 1, wherein the corner portion is formed as a rounded corner that connects the first connecting portion and the second connecting portion.
8. The corner connection structure according to claim 7, wherein a maximum diameter between adjacent corner portions is 1.3 to 1.5 times a pipe diameter of the first pipe or the second pipe.
9. The corner connection of claim 8, wherein the angle of the transition surface from the maximum diameter to the pipe diameter is 5 ° to 10 ° relative to the first direction or the second direction.
10. The corner connection structure of claim 8, wherein the length of the region of the corner connection structure having a diameter greater than the diameter of the pipe in the first direction or the second direction is 2/3 of the length of the corner connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410354272.5A CN118224421A (en) | 2024-03-26 | 2024-03-26 | Corner connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410354272.5A CN118224421A (en) | 2024-03-26 | 2024-03-26 | Corner connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118224421A true CN118224421A (en) | 2024-06-21 |
Family
ID=91500061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410354272.5A Pending CN118224421A (en) | 2024-03-26 | 2024-03-26 | Corner connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118224421A (en) |
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2024
- 2024-03-26 CN CN202410354272.5A patent/CN118224421A/en active Pending
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