CN111288243A - Connecting assembly for bypass connection of pipelines - Google Patents
Connecting assembly for bypass connection of pipelines Download PDFInfo
- Publication number
- CN111288243A CN111288243A CN202010254304.6A CN202010254304A CN111288243A CN 111288243 A CN111288243 A CN 111288243A CN 202010254304 A CN202010254304 A CN 202010254304A CN 111288243 A CN111288243 A CN 111288243A
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- China
- Prior art keywords
- joint part
- adjusting nut
- external thread
- joint
- thread pair
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F16L41/007—Branching pipes; Joining pipes to walls adjustable and comprising a bend
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- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
- F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to a connecting assembly for bypass connection of pipelines, which comprises a three-way joint, a 90-degree elbow, a sealing ring, an adjusting nut and a baffle plate. The three-way joint comprises a joint part A, a joint part B and a joint part C. The C-joint part is by means of a 90 ° bend to achieve communication with the bypass duct. The outer side wall of the C joint part is provided with a first external thread pair and a second external thread pair which are sequentially arranged along the direction away from the three-way joint. The 90-degree elbow is sleeved and connected on the second external thread pair. The adjusting nut is sleeved on the first external thread pair. The separation blade and the sealing ring are sleeved on the joint part C together and pressed between the 90-degree elbow and the adjusting nut together. In the actual work progress, specifically confirm the position angle of self of 90 elbows according to the concrete trend of bypass pipeline, afterwards, turn knob adjusting nut so that it takes place adaptive displacement motion for three way connection to ensure pressing reliably to the sealing washer, and then stop the pipeline and take place the leakage phenomenon.
Description
Technical Field
The invention relates to the technical field of pipeline laying, in particular to a connecting assembly for pipeline side connection.
Background
The transfusion/gas transmission pipeline is widely applied to industries such as petroleum refining, long-distance transmission pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy.
In the actual pipeline laying process, the bypass pipeline is generally required to be bypassed by means of a tee joint and a 90-degree elbow. In the prior art, the three-way joint and the 90-degree elbow are connected in a screwing mode in a threaded pair mode. As shown in fig. 1 and 2, an external thread is provided on the outer side wall of the side port of the three-way joint, and correspondingly, an internal thread adapted to the external thread is provided inside the 90 ° elbow. In addition, a sealing ring is additionally arranged between the three-way joint and the 90-degree elbow. During the actual laying of the bypass pipeline, it is necessary to completely screw the thread pair in order to ensure a reliable pressing against the sealing ring and subsequently to utilize its elastic deformation characteristics in order to ensure a reliable sealing of the junction of the three-way joint and the 90 ° elbow. However, in the concrete construction, the actual azimuth angle of the bypass pipeline is different greatly, so that the 90 ° elbow needs to be rotated by itself by different azimuth angles to cater for the bypass pipeline, and thus, the thread pair cannot be completely screwed, and the seal ring cannot be effectively pressed, so that the joint of the three-way joint and the 90 ° elbow cannot be effectively sealed. Thus, a skilled person is urgently needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a connecting component for bypass connection of pipelines, which has a simple design structure, can freely rotate at a 90-degree elbow and effectively ensures that the pipelines have good sealing property.
In order to solve the technical problem, the invention relates to a pipeline bypass assembly which comprises a three-way joint, a 90-degree elbow and a sealing ring. The three-way joint comprises a joint part A, a joint part B and a joint part C, wherein the joint part A and the joint part B are communicated with the main pipeline, and the joint part C is communicated with the bypass pipeline by means of the 90-degree elbow. Sealing of the C-joint part is achieved by means of a sealing ring. In addition, the pipeline bypass assembly further comprises an adjusting nut and a blocking piece. The outer side wall of the C joint part is provided with a first external thread pair and a second external thread pair which are sequentially arranged along the direction away from the three-way joint. The 90-degree elbow is sleeved and connected on the second external thread pair. The adjusting nut is sleeved on the first external thread pair, and the distance of the adjusting nut relative to the 90-degree elbow is adjusted through the twisting action. The separation blade and the sealing ring are sequentially sleeved on the C joint part along the direction far away from the three-way joint and are pressed between the 90-degree elbow and the adjusting nut together.
As a further improvement of the technical solution of the present invention, the thread directions of the first external thread pair and the second external thread pair are opposite.
As a further improvement of the technical solution of the present invention, the second external thread pair is preferably a 55 ° pipe sealing thread.
As a further improvement of the technical scheme of the invention, the adjusting nut is provided with a rotating groove which extends along the axial direction of the adjusting nut. The quantity of the rotating grooves is set to be a plurality of, and the rotating grooves are circumferentially arrayed around the peripheral side wall of the adjusting nut.
As a further improvement of the technical scheme of the invention, the baffle is provided with an annular sinking groove for sinking the sealing ring.
As a further improvement of the technical solution of the present invention, the above-mentioned connecting assembly for pipeline bypass connection further comprises an elastic plugging member. The central axis around the elastic plugging piece is provided with a circulation hole, the whole elastic plugging piece is arranged in a flow passage of the 90-degree elbow, and the free end of the C-joint part is abutted against the flow passage.
As a further improvement of the technical solution of the present invention, the above-mentioned connecting assembly for pipeline bypass further comprises a lock nut. The locking nut is arranged between the three-way joint and the adjusting nut, is also sleeved on the first external thread pair and is arranged side by side with the adjusting nut.
Through adopting above-mentioned technical scheme to set up, in bypass pipeline's actual construction, come the self azimuth angle of specific definite 90 elbows according to bypass pipeline's specific trend, afterwards, turn knob adjusting nut so that it takes place adaptive displacement motion for three way connection to ensure to press reliably the sealing washer, and then stop the pipeline and take place the leakage phenomenon.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of a prior art connection assembly for use in a pipeline bypass.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a perspective view of a first embodiment of the connection assembly for pipeline bypass of the present invention.
Fig. 4 is a front view of fig. 3.
Fig. 5 is a sectional view of fig. 3.
Figure 6 is a perspective view of a three-way connection of a first embodiment of the connection assembly for pipeline bypass of the present invention.
Figure 7 is a perspective view of a 90 deg. bend in a first embodiment of the connection assembly for pipe bypass of the present invention.
Fig. 8 is a perspective view of a flap of a first embodiment of the coupling assembly for pipeline bypass according to the present invention.
Fig. 9 is a perspective view of an adjustment nut of a first embodiment of the coupling assembly for pipeline bypass of the present invention.
Fig. 10 is a schematic structural view of a second embodiment of the connecting assembly for pipeline bypass according to the present invention.
Fig. 11 is a perspective view of an adjusting nut of a second embodiment of the coupling assembly for pipeline bypass of the present invention.
Fig. 12 is a schematic view of a third embodiment of the connection assembly for pipeline bypass according to the present invention.
1-a three-way joint; 11-A joint part; a 12-B joint portion; a 13-C joint portion; 131-a first external thread pair; 132-a second external thread pair; 2-90 degree elbow; 21-internal thread; 3-sealing ring; 4-adjusting the nut; 41-rotating the groove; 5-a baffle plate; 51-annular sink; 6-elastic plugging piece; and 7, locking the nut.
Detailed Description
The technical solution disclosed in the present invention is explained below with reference to an example, and fig. 3, fig. 4, and fig. 5 respectively show a perspective view, a front view, and a cross-sectional view of a first embodiment of a connection assembly for pipeline bypass in the present invention, and it can be understood that the connection assembly mainly includes a three-way joint 1, a 90 ° elbow 2, a sealing ring 3, an adjusting nut 4, and a baffle 5, and the three-way joint 1 is provided with an a joint part 11, a B joint part 12, and a C joint part 13 (as shown in fig. 6). The a joint part 11 and the B joint part 12 are both communicated with the main pipeline, and the C joint part 13 is communicated with the bypass pipeline by means of the 90-degree elbow 2. The outer side wall of the C-joint part 13 is provided with a first external thread pair 131 and a second external thread pair 132, and the first external thread pair and the second external thread pair are sequentially arranged along the direction away from the three-way joint 1. An internal thread matched with the second external thread pair 132 is arranged in the circulating cavity of the 90-degree elbow so as to be sleeved and connected on the C joint part 13 (shown in figure 7). The adjusting nut 4 is sleeved on the first external thread pair 131, and the distance between the adjusting nut and the 90-degree elbow 2 is adjusted through the twisting action. The blocking piece 5 and the sealing ring 3 are sequentially sleeved on the C joint part 13 along the direction far away from the three-way joint 1 and are pressed between the 90-degree elbow 2 and the adjusting nut 4 together. In the process of rotating the adjusting nut 4, the blocking piece 5 gradually compresses the sealing ring 3 to enable the sealing ring to generate elastic deformation so as to seal the joint of the three-way joint 1 and the 90-degree elbow 2. Through adopting above-mentioned technical scheme to set up, under the prerequisite of guaranteeing that 90 elbows 2 can free rotation for three way connection 1 and 90 elbows 2 junction are in encapsulated situation all the time, and then stop the emergence of revealing the phenomenon.
The working principle of the above-mentioned connecting assembly for pipeline bypass is roughly as follows: in the actual construction of bypass pipeline, specifically confirm the self azimuth angle of 90 elbow 2 according to the concrete trend of bypass pipeline to realize taking place the correct location, the installation of pipeline by-pass, afterwards, turn knob adjusting nut 4 so that it takes place adaptive displacement motion for three way connection 1, so as to ensure to reliably pressing to sealing washer 3, and then stop that the pipeline takes place the leakage phenomenon.
In the practical application process, vibration is inevitably generated along the pipeline, so that the phenomenon that the joint part between the three-way joint 1 and the 90-degree elbow 2 is loosened is easily caused. In view of this, as a further optimization of the above-described connecting assembly structure for pipe bypass, the thread directions of the first male thread pair 131 and the second male thread pair 132 are opposite, thereby effectively solving the above-described problems. In addition, by adopting the technical scheme for arrangement, the following rotation movement of the adjusting nut 4 relative to the C joint part 13 in the process of rotating the 90-degree elbow 2 can be effectively avoided.
Further, the second male thread pair 132 is preferably a 55 ° tube sealing thread in terms of ensuring the sealability of the joint portion between the three-way joint 1 and the 90 ° elbow 2.
In addition, in view of facilitating the turning of the adjustment nut 4, a turning groove 41 extending in the axial direction thereof may be provided on the adjustment nut 4. The number of the swirling grooves 41 is provided in plural and arrayed circumferentially around the peripheral side wall of the adjusting nut 4 (as shown in fig. 9). Therefore, the adjusting nut 4 can be rotated by holding the adjusting nut in hand without a spanner, so that the operation flow is effectively simplified, and the construction of performing the side connection of the pipeline by workers is facilitated.
It is known that when the sealing ring 3 is subjected to a pressing force, the deformation of the end surface of the sealing ring is easily inconsistent due to various factors (pressure balance, material and dimension error), so as to affect the actual sealing effect, and for this reason, an annular sinking groove 51 may be formed in the baffle 5 for sinking the sealing ring 3 (as shown in fig. 8).
Fig. 10 shows a schematic structural view of a second embodiment of the connection assembly for pipeline bypass according to the present invention, which differs from the first embodiment in that: 1) an elastic plugging piece 6 is additionally arranged. And a flow hole is opened around the central axis of the elastic plugging piece 6 so as to facilitate the flow of liquid or gas. The elastic plugging member 6 is integrally built in the flow passage of the 90 ° elbow 2 and is abutted by the free end of the C joint part 13. In the process that the 90-degree elbow 2 rotates relative to the three-way joint 1, the peripheral side wall of the elastic plugging piece 6 is expanded under the action of pressure so as to reliably compress the flow cavity wall of the 90-degree elbow 2, thereby effectively ensuring the reliable sealing of the joint part of the three-way joint 1 and the 90-degree elbow 2; 2) the adjusting nut 4 is preferably a conventional external hexagonal nut (as shown in fig. 11) so that it is easy to apply a large twisting force thereto by means of a wrench, so that the adjusting nut 4 can be used in a wet environment for a long period of time without fear of corrosion effects.
Fig. 12 shows a schematic structural view of a third embodiment of the connection assembly for pipeline bypass according to the present invention, which differs from the second embodiment only in that: a locking nut 7 is additionally arranged. The locking nut 7 is disposed between the three-way joint 1 and the adjusting nut 4, and also sleeved on the first male screw pair 131 and disposed side by side with the adjusting nut 4. Therefore, after the 90-degree elbow 2 is connected in place relative to the three-way joint 1, the adjusting nut 4 is rotated to compress the sealing ring 3, and then the locking nut 7 is immediately rotated to compress the sealing ring on the outer end face of the adjusting nut 4, so that the phenomenon of looseness of the adjusting nut 4 in the practical application process can be effectively avoided.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A connecting assembly for bypass connection of pipelines comprises a three-way joint, a 90-degree elbow and a sealing ring; the three-way joint comprises a joint part A, a joint part B and a joint part C, wherein the joint part A and the joint part B are communicated with a main pipeline, and the joint part C is communicated with a bypass pipeline by means of the 90-degree elbow; the sealing ring is used for sealing the C joint part, and the sealing ring is characterized by further comprising an adjusting nut and a baffle plate; a first external thread pair and a second external thread pair are arranged on the outer side wall of the C joint part and are sequentially arranged along the direction far away from the three-way joint; the 90-degree elbow is sleeved and connected to the second external thread pair; the adjusting nut is sleeved on the first external thread pair, and the distance of the adjusting nut relative to the 90-degree elbow is adjusted through the turning action; the separation blade and the sealing ring are sequentially sleeved on the C joint part along the direction far away from the three-way joint and are pressed between the 90-degree elbow and the adjusting nut together.
2. The connection assembly for pipe bypassing according to claim 1, wherein said first pair of external threads and said second pair of external threads have opposite thread turns.
3. The connection assembly for pipe bypass according to claim 2, wherein said second external thread pair is a 55 ° pipe seal thread.
4. The coupling assembly for a pipe bypass according to claim 1, wherein the adjusting nut is cylindrical as a whole and is provided with a rotary groove extending in an axial direction thereof; the quantity of the rotating grooves is set to be a plurality of, and the rotating grooves are circumferentially arrayed around the peripheral side wall of the adjusting nut.
5. A connection assembly for pipeline bypass according to any of claims 1-4, wherein an annular groove is provided in the flap for receiving the sealing ring.
6. The connection assembly for pipeline bypass according to any one of claims 1-4, further comprising a resilient block; a circulation hole is arranged around the central axis of the elastic plugging piece, the whole elastic plugging piece is arranged in the flow passage of the 90-degree elbow, and the C-shaped joint part is abutted against the flow passage.
7. The coupling assembly for pipe bypass according to any of claims 1-4, further comprising a lock nut; the locking nut is arranged between the three-way joint and the adjusting nut, sleeved on the first external thread pair and arranged side by side with the adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254304.6A CN111288243A (en) | 2020-04-02 | 2020-04-02 | Connecting assembly for bypass connection of pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010254304.6A CN111288243A (en) | 2020-04-02 | 2020-04-02 | Connecting assembly for bypass connection of pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111288243A true CN111288243A (en) | 2020-06-16 |
Family
ID=71020982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010254304.6A Withdrawn CN111288243A (en) | 2020-04-02 | 2020-04-02 | Connecting assembly for bypass connection of pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111288243A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087448A (en) * | 2021-12-02 | 2022-02-25 | 中国船舶重工集团公司第七0三研究所 | Improved structure of tee threaded joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367646Y (en) * | 1999-04-09 | 2000-03-08 | 贾宝山 | Water-return elbow pipe easy for removing block |
| CN202125697U (en) * | 2011-03-14 | 2012-01-25 | 广西玉柴机器股份有限公司 | Right-angle joint capable of adjusting installing orientation |
| CN202501142U (en) * | 2011-12-24 | 2012-10-24 | 浙江师范大学 | Coal gas pipeline connection system |
| CN207555049U (en) * | 2017-11-01 | 2018-06-29 | 嘉兴新亚汽车零部件有限公司 | A kind of detachable natural gas pipe three-way connection |
| CN212203534U (en) * | 2020-04-02 | 2020-12-22 | 沅亨流体科技（昆山）有限公司 | Connecting assembly for bypass connection of pipelines |
-
2020
- 2020-04-02 CN CN202010254304.6A patent/CN111288243A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367646Y (en) * | 1999-04-09 | 2000-03-08 | 贾宝山 | Water-return elbow pipe easy for removing block |
| CN202125697U (en) * | 2011-03-14 | 2012-01-25 | 广西玉柴机器股份有限公司 | Right-angle joint capable of adjusting installing orientation |
| CN202501142U (en) * | 2011-12-24 | 2012-10-24 | 浙江师范大学 | Coal gas pipeline connection system |
| CN207555049U (en) * | 2017-11-01 | 2018-06-29 | 嘉兴新亚汽车零部件有限公司 | A kind of detachable natural gas pipe three-way connection |
| CN212203534U (en) * | 2020-04-02 | 2020-12-22 | 沅亨流体科技（昆山）有限公司 | Connecting assembly for bypass connection of pipelines |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087448A (en) * | 2021-12-02 | 2022-02-25 | 中国船舶重工集团公司第七0三研究所 | Improved structure of tee threaded joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200616 |
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| WW01 | Invention patent application withdrawn after publication |