CN214305819U - Double-layer pipeline tee joint - Google Patents
Double-layer pipeline tee joint Download PDFInfo
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- CN214305819U CN214305819U CN202120448366.0U CN202120448366U CN214305819U CN 214305819 U CN214305819 U CN 214305819U CN 202120448366 U CN202120448366 U CN 202120448366U CN 214305819 U CN214305819 U CN 214305819U
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- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000035882 stress Effects 0.000 description 11
- 238000010276 construction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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Abstract
The utility model discloses a double-deck pipeline tee bend, including the inner tube, the inner tube includes the interior branch pipe of being responsible for including following sharp setting and crossing the fixed interior branch pipe of being responsible for including the intercommunication, and its characterized in that, the outer cover of still is equipped with the outer tube outside the inner tube, and the outer tube includes that coaxial cover establishes the outer main pipe outside the inner main pipe and coaxial cover establish the outer pillar outside the inner branch pipe, is provided with between inner tube and the outer tube and connects fixed knot and construct. Compare with current tee bend, the utility model discloses can utilize connecting plate and outer tube to carry out overall structure to inner tube stress concentration position and strengthen. The heat supply pipeline has the advantages of high quality and good structural safety, can improve the reliability and safety of the heat supply pipeline, and has important engineering application value.
Description
Technical Field
The utility model relates to a heat supply directly buried pipeline field, concretely relates to tee bend pipe fitting of using in heat supply directly buried pipeline installation.
Background
The heat supply direct-buried pipeline is also called a heat supply direct-buried heat preservation pipe and is a common device widely applied to long-distance transmission of heat flow media. The heat supply direct buried pipeline is the most commonly adopted system form for central heat supply in China. The operation safety of the heat supply direct-buried pipeline is in the aspects of urban work, life and the like. The current research shows that the heat supply direct-buried pipeline bears the complex load effects of dead weight, fluid pressure in the pipeline, static pressure of surrounding soil outside the pipeline, soil moving pressure of a motor vehicle and the like when working, and the determination of the stress state of the heat supply direct-buried pipeline is very complex. Therefore, the performance requirements for the buried pipe are higher than those for the ordinary pipe.
The directly buried pipeline tee joint is a pipe fitting used for pipeline redirection and flow distribution in the construction process of a heat supply directly buried hot water pipeline. Due to the fact that the pipeline tee joint belongs to the open pore structure, structural discontinuity is caused, large stress concentration can be formed at the position, and high local peak stress is generated. The pipeline structure is easy to be damaged, and safety accidents occur. Therefore, the reinforced pipeline tee joint has important significance for improving the safety and the reliability of a heating system.
At present, the method for strengthening the tee joint of the directly buried pipeline in the engineering comprises the following steps: the modes of adding reinforcing elements such as tippet reinforcement, rib plate reinforcement, channel steel reinforcement, wall thickness increase, single rib reinforcement and the like; if the requirements still cannot be met, a fixed pier or a compensator can be arranged for protection. Through the mode of increasing the reinforcing element, need weld the reinforcing element at the stress concentration position of pipeline tee bend, it is higher to welding technical requirement, like welding material, welding mode, location and flaw detection etc. the welding can produce secondary thermal stress moreover, hardly carries out stress relief at the job site, consequently, actual reinforcing effect is difficult to control. The mode of adopting the fixed pier or the compensator to protect not only increases the construction cost and prolongs the construction period, but also increases the probability of water leakage of the compensator, occupies a certain underground construction space, has high construction difficulty and even does not have construction conditions.
Therefore, how to improve the self structure of the three-way pipe fitting to better meet the performance requirement of a directly buried pipeline and improve the engineering safety quality becomes a technical problem to be considered and solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: a double-layer pipeline three-way component capable of improving structural reliability and safety is provided, and is particularly suitable for installation application of a directly buried pipeline.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a double-deck pipeline tee bend, includes the inner tube, and the inner tube is equipped with the outer tube including the interior main pipe that sets up along the straight line and crossing intercommunication fixed the interior branch pipe on the main pipe including, its characterized in that still overlaps outward of inner tube, and the outer tube includes that coaxial cover establishes the outer main pipe outside the interior main pipe and coaxial cover establishes the outer branch pipe outside the interior branch pipe, is provided with between inner tube and the outer tube and connects fixed knot structure.
Like this, set up the tee bend into the bilayer structure of outer pipe sleeve inner tube, inner tube intensity can be strengthened to the outer tube, also can effectively protect the inner tube, avoids inner tube and soil direct contact, so can improve engineering application's reliability and security effectively.
Further, the inner main tube and the inner branch tube are vertically connected. This is the most commonly used three-way configuration.
Further, the connecting and fixing structure comprises a connecting plate which is arranged between the inner pipe and the outer pipe along the axial direction, the inner side of the connecting plate is connected with the outer surface of the inner pipe into a whole, and the outer side of the connecting plate is connected with the inner surface of the appearance into a whole.
The structure of connecting plate can further improve tee bend structural strength like this, improves reliability and security.
Further, the connecting plate is arranged along the diameter direction of the inner pipe.
Therefore, the connecting plate can better transmit acting force between the inner pipe and the outer pipe, the strength of the whole structure can be better improved, and the reliability and the safety are improved.
Furthermore, the inner main pipe comprises at least one connecting plate which is arranged on one side of the inner branch pipe and is coplanar with the axis of the inner branch pipe, and the inner branch pipe comprises at least two connecting plates which are coplanar with the axis of the inner main pipe.
Like this, set up the connecting plate in the direction that the branch pipe is most probably buckled, can adopt minimum connecting plate furthest to improve whole security.
Furthermore, the connecting plates on the inner main pipe and the inner branch pipe are all four and are respectively and uniformly distributed along the circumferential direction.
If too much, the cost increases, the processing difficulty increases, and if too little, the strength may be insufficient.
Furthermore, the two sides of the connecting plate are respectively in a fillet structure with the joints between the inner pipe and the outer pipe.
Therefore, stress concentration can be avoided, and the overall strength of the structure is improved.
Furthermore, two connecting plates on the inner branch pipe, which are coplanar with the axial lead of the inner main pipe, are connected with the coplanar connecting plates on the inner main pipe into a whole, an arc-shaped reinforcing plate is arranged along the outer surface of the inner main pipe at one end of the inner branch pipe, which is perpendicular to the axial lead of the inner main pipe, which is connected with the inner main pipe, and the other end of the reinforcing plate is connected with two connecting plates on the inner main pipe, which are positioned on the vertical plane of the axial lead of the inner branch pipe.
Therefore, the simple structure can be adopted to better strengthen the joint of the branch pipe and the main pipe.
Further, the inner pipe, the outer pipe and the connecting plate are formed by casting.
Therefore, the structural integrity is more conveniently improved, and the production and the manufacture are facilitated. The casting material can be selected according to laying the pipeline and select corresponding material for use to guarantee double-deck pipeline tee bend can weld with the pipeline better. The product can be processed in a factory, so that the whole heat treatment, the structural flaw detection and other process treatments are convenient to carry out, and the product quality is improved.
Furthermore, the length of the outer main pipe is smaller than that of the inner main pipe, the length of the outer branch pipe is smaller than that of the inner branch pipe, and the end parts of the outer main pipe and the outer branch pipe are respectively connected with a conical connecting pipe which is connected with the inner main pipe and the inner branch pipe.
The connecting pipe can play the effect of stress transfer dispersion like this, protects tee bend safety more effectively, and including the connecting pipe can seal the connecting plate simultaneously, plays the better protection effect.
Meanwhile, in the scheme, the structures of the outer pipe and the connecting pipe can be omitted, and the structures of the inner pipe and the connecting plate are reserved, so that the reinforcing effect can be achieved. Therefore, the utility model also discloses following structural scheme: a pipeline tee joint comprises an inner pipe, wherein the inner pipe comprises an inner main pipe arranged along a straight line and an inner branch pipe which is fixedly communicated with the inner main pipe in an intersecting mode.
Therefore, the tee joint can be well reinforced and obtained by adopting the minimum material.
The further structure of the connecting plate can be completely the same as that of the previous proposal, and the description is not repeated.
To sum up, compare with current tee bend, the utility model discloses can utilize connecting plate and outer tube to carry out overall structure to inner tube stress concentration position and strengthen. The heat supply pipeline has the advantages of high quality and good structural safety, can improve the reliability and safety of the heat supply pipeline, and has important engineering application value.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of embodiment 2.
Fig. 3 is a schematic structural view of embodiment 3.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1: referring to fig. 1, the double-layer pipeline tee joint comprises an inner pipe, wherein the inner pipe comprises an inner main pipe 1 arranged along a straight line and an inner branch pipe 2 which is fixedly communicated with the inner main pipe in an intersecting manner, an outer pipe is sleeved outside the inner pipe, the outer pipe comprises an outer main pipe 3 coaxially sleeved outside the inner main pipe and an outer branch pipe 4 coaxially sleeved outside the inner branch pipe, and a connecting and fixing structure is arranged between the inner pipe and the outer pipe.
Like this, set up the tee bend into the bilayer structure of outer pipe sleeve inner tube, inner tube intensity can be strengthened to the outer tube, also can effectively protect the inner tube, avoids inner tube and soil direct contact, so can improve engineering application's reliability and security effectively.
Wherein, the inner main pipe 1 is vertically connected with the inner branch pipe 2. This is the most commonly used three-way configuration.
Wherein, connect fixed knot to construct including setting up connecting plate 5 between inner tube and outer tube along the axial, connecting plate 5 inboard and inner tube surface connection as an organic whole, the connecting plate outside and outward appearance internal surface connection as an organic whole. The structure of the connection plate itself in this embodiment is the same as that in embodiment 3, and can be understood with reference to fig. 3.
The structure of connecting plate can further improve tee bend structural strength like this, improves reliability and security.
Wherein the connecting plate 5 is arranged along the diameter direction of the inner pipe.
Therefore, the connecting plate can better transmit acting force between the inner pipe and the outer pipe, the strength of the whole structure can be better improved, and the reliability and the safety are improved.
The inner main pipe 1 comprises at least one connecting plate which is arranged on one side of the inner branch pipe and is coplanar with the axis of the inner main pipe, and the inner branch pipe comprises at least two connecting plates which are coplanar with the axis of the inner main pipe.
Like this, set up the connecting plate in the direction that the branch pipe is most probably buckled, can adopt minimum connecting plate furthest to improve whole security.
Wherein, the connecting plates on the inner main pipe 1 and the inner branch pipe 2 are all four and are respectively and uniformly distributed along the circumferential direction.
If too much, the cost increases, the processing difficulty increases, and if too little, the strength may be insufficient. Of course, the implementation may be three or other numbers distributed uniformly.
Wherein, the connecting parts between the two sides of the connecting plate and the inner pipe and the outer pipe are both in a fillet structure.
Therefore, stress concentration can be avoided, and the overall strength of the structure is improved.
Wherein, two connecting plates on the inner branch pipe, which are coplanar with the axial lead of the inner main pipe, are connected with the coplanar connecting plates on the inner main pipe into a whole, an arc-shaped reinforcing plate is arranged along the outer surface of the inner main pipe at one end of the inner branch pipe, which is connected with the inner main pipe, which is vertical to the axial lead of the inner main pipe, and the other end of the reinforcing plate is connected with two connecting plates on the inner main pipe, which are positioned on the vertical plane of the axial lead of the inner branch pipe.
Therefore, the simple structure can be adopted to better strengthen the joint of the branch pipe and the main pipe.
Wherein the inner pipe, the outer pipe and the connecting plate 5 are formed by casting.
Therefore, the structural integrity is more conveniently improved, and the production and the manufacture are facilitated. The casting material can be selected according to laying the pipeline and select corresponding material for use to guarantee double-deck pipeline tee bend can weld with the pipeline better. The product can be processed in a factory, so that the whole heat treatment, the structural flaw detection and other process treatments are convenient to carry out, and the product quality is improved. Of course, other methods such as welding may be used in the implementation.
Embodiment 2, referring to fig. 2, the structure of this embodiment is mostly the same as that of embodiment 1, except that the length of the outer main pipe is shorter than that of the inner main pipe, the length of the outer branch pipe is shorter than that of the inner branch pipe, and the end parts of the outer main pipe and the outer branch pipe are respectively connected with a tapered connecting pipe 6 connected with the inner main pipe and the inner branch pipe.
The connecting pipe can play the effect of stress transfer dispersion like this, protects tee bend safety more effectively, and including the connecting pipe can seal the connecting plate simultaneously, plays the better protection effect.
Example 3, referring to fig. 3, the structure of this example is compared with that of example 1, only in that the structure of the outer pipe is eliminated, and the structures of the inner pipe and the connecting plate are retained. Specifically, the pipeline tee joint of this embodiment includes the inner tube, and the inner tube includes that the interior owner 1 that sets up along the straight line intersects the interior branch pipe 2 that the intercommunication is fixed on the interior owner, and wherein, still be provided with connecting plate 5 along the axial outside the inner tube, and the inboard and the interior outer surface of inner tube of connecting plate 5 are connected as an organic wholely, and connecting plate 5 sets up and includes at least one and sets up the connecting plate that includes branch pipe place one side and the coplane of inner branch pipe axial lead in the inner tube diameter direction.
The inner main pipe 1 comprises at least one connecting plate which is arranged on one side of the inner branch pipe and is coplanar with the axis of the inner branch pipe, and the inner branch pipe 2 comprises at least two connecting plates which are coplanar with the axis of the inner main pipe.
Like this, set up the connecting plate in the direction that the branch pipe is most probably buckled, can adopt minimum connecting plate furthest to improve whole security.
Wherein, the connecting plates on the inner main pipe 1 and the inner branch pipe 2 are all four and are respectively and uniformly distributed along the circumferential direction.
If too much, the cost increases, the processing difficulty increases, and if too little, the strength may be insufficient.
Wherein, the joints between the two sides of the connecting plate 5 and the inner pipe are both in a fillet structure.
Therefore, stress concentration can be avoided, and the overall strength of the structure is improved.
Wherein, two connecting plates on the inner branch pipe 2, which are coplanar with the axial lead of the inner main pipe, are connected with the coplanar connecting plates on the inner main pipe into a whole, the two connecting plates on the inner branch pipe, which are vertical to the axial lead of the inner main pipe, are connected with the inner main pipe at one end, an arc-shaped reinforcing plate 7 is arranged along the outer surface of the inner main pipe, and the other end of the reinforcing plate 7 is connected with the two connecting plates on the inner main pipe, which are positioned on the vertical plane of the axial lead of the inner branch pipe.
Therefore, the simple structure can be adopted to better strengthen the joint of the branch pipe and the main pipe.
Wherein the inner pipe, the outer pipe and the connecting plate 5 are formed by casting.
Claims (10)
1. The utility model provides a double-deck pipeline tee bend, includes the inner tube, and the inner tube is equipped with the outer tube including the interior main pipe that sets up along the straight line and crossing intercommunication fixed the interior branch pipe on the main pipe including, its characterized in that still overlaps outward of inner tube, and the outer tube includes that coaxial cover establishes the outer main pipe outside the interior main pipe and coaxial cover establishes the outer branch pipe outside the interior branch pipe, is provided with between inner tube and the outer tube and connects fixed knot structure.
2. The double-deck pipe tee of claim 1, wherein the inner main pipe and the inner branch pipe are vertically connected.
3. The double-pipe tee of claim 1, wherein the connecting and fixing structure comprises a connecting plate axially disposed between the inner pipe and the outer pipe, an inner side of the connecting plate integrally connected to an outer surface of the inner pipe, and an outer side of the connecting plate integrally connected to an inner surface of the outer pipe.
4. The double-walled piping tee of claim 3, wherein the connecting plate is provided along a diameter of the inner pipe.
5. The double-deck pipe tee of claim 4, wherein the inner main pipe includes at least one connecting plate disposed on a side of the inner branch pipe coplanar with an axis of the inner branch pipe, and the inner branch pipe includes at least two connecting plates coplanar with an axis of the inner main pipe.
6. The double-deck pipe tee of claim 5, wherein the connecting plates on the inner main pipe and the inner branch pipe are four and are uniformly distributed in the circumferential direction.
7. The double-deck pipe tee of claim 5, wherein the connection between each of the two sides of the web and the inner and outer pipes is rounded.
8. The double-deck pipe tee of claim 5, wherein the two connecting plates of the inner branch pipe coplanar with the axis of the inner main pipe and the coplanar connecting plates of the inner main pipe are integrally connected, the two connecting plates of the inner branch pipe perpendicular to the axis of the inner main pipe are connected to one end of the inner main pipe, an arc-shaped reinforcing plate is provided along the outer surface of the inner main pipe, and the other end of the reinforcing plate is connected to the two connecting plates of the inner main pipe located on the perpendicular plane to the axis of the inner branch pipe.
9. The double-pipe tee of claim 8, wherein the inner pipe, the outer pipe, and the web are cast;
the length of the outer main pipe is less than that of the inner main pipe, the length of the outer branch pipe is less than that of the inner branch pipe, and the end parts of the outer main pipe and the outer branch pipe are respectively connected with a conical connecting pipe which is connected with the inner main pipe and the inner branch pipe.
10. A pipeline tee joint comprises an inner pipe, wherein the inner pipe comprises an inner main pipe arranged along a straight line and an inner branch pipe which is fixedly communicated with the inner main pipe in an intersecting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120448366.0U CN214305819U (en) | 2021-03-02 | 2021-03-02 | Double-layer pipeline tee joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120448366.0U CN214305819U (en) | 2021-03-02 | 2021-03-02 | Double-layer pipeline tee joint |
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| Publication Number | Publication Date |
|---|---|
| CN214305819U true CN214305819U (en) | 2021-09-28 |
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| CN202120448366.0U Active CN214305819U (en) | 2021-03-02 | 2021-03-02 | Double-layer pipeline tee joint |
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| CN (1) | CN214305819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119712988A (en) * | 2024-12-12 | 2025-03-28 | 中国华能集团清洁能源技术研究院有限公司 | Symmetrical Y-shaped bifurcated pipe for reducing joint deformation with concrete |
-
2021
- 2021-03-02 CN CN202120448366.0U patent/CN214305819U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119712988A (en) * | 2024-12-12 | 2025-03-28 | 中国华能集团清洁能源技术研究院有限公司 | Symmetrical Y-shaped bifurcated pipe for reducing joint deformation with concrete |
| CN119712988B (en) * | 2024-12-12 | 2025-12-26 | 中国华能集团清洁能源技术研究院有限公司 | Symmetrical Y-shaped branch pipe to reduce deformation at concrete joints |
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| TR01 | Transfer of patent right |
Effective date of registration: 20231018 Address after: 064100 Hebei Tangshan City Yutian County Hou Hu industrial gathering area Patentee after: TANGSHAN XINGBANG PIPE CONSTRUCTION EQUIPMENT Co.,Ltd. Address before: 030006 Zhongchuang space of qingqingchuang company, block a, 529 South Central Street, Taiyuan Xuefu Park, comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee before: SHANXI LIGONG HONGRI ENERGY SAVING SERVICE Co.,Ltd. |