CN207454966U - The tubing of oval cross-section - Google Patents
The tubing of oval cross-section Download PDFInfo
- Publication number
- CN207454966U CN207454966U CN201721033859.8U CN201721033859U CN207454966U CN 207454966 U CN207454966 U CN 207454966U CN 201721033859 U CN201721033859 U CN 201721033859U CN 207454966 U CN207454966 U CN 207454966U
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- section
- tubing
- oval cross
- pipe
- tube wall
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Abstract
The tubing of oval cross-section.The cross sectional shape of pipe is egg type shape of the both ends with radius arc of different sizes in and one diametric(al) smooth in internal face, wherein the preferred ratio with the maximum radial length in radius arc direction of both ends of different sizes and the maximum width in wherein large radius end circular arc is (1.2 ~ 1.8):1.On this basis, various forms of spiral winding metallic strengthening structures can be further bonded in the periphery of tube wall, to meet the needs under different situations.Compared to typical round section tubing, pipe laying channel excavation width during the embedding construction of the oval cross-section tubing is small, backfill is more densely cross-linked, draining flow velocity is fast, and hydraulic performance is more superior, and can slow down the gravity current pipe network laying gradient, reduce pipe laying channel excavation expense and/or reduce elevator pump construction cost, bearing capacity at the top of tubing is strong, and pipe ring stiffness and ring are flexible, and applied widely.
Description
Technical field
The utility model is related to a kind of plastic pipes that may be used primarily for rain/sewage.
Background technology
By taking the gravity stream for being embedded in below ground discharges the pipeline system of rainwater, sewage as an example, tradition uses all
It is that section is circular tubing.The tubing of circular cross-section can obtain maximum runner pipe diametric plane on the premise of similary material utilization amount
Product, but found in putting into practice, since the cambered surface of circular cross-section tubing is wider, can not only increase in the excavation construction of the embedding groove of pipeline
The area of digging is increased, and is also unfavorable for the backfill figure rammed earth below tubing in backfilling of earthwork, and hollow unreal time
The pipe trench in use that bankets easily settles, and and then tubing junction is made even to be come off by gradual tear.On the other hand,
Since the circular arc of circular cross-section tubing bottom is larger, one timing of water flow in pipe, can reduce its height of water level causes current
Relatively slowly.To avoid current, excessively gently the sediments such as caused sludge deposit, and just have to the gradient of accordingly increase pipe trench, this
The increase that pipe network excavates expense is equally also directly resulted in, and in construction Boosting pumping station in need, can also increase pumping plant and build
If quantity and construction cost, and increase the operating cost and administration fee of post facility.In addition, a large amount of currently on the market occur
The tubing of plastic material with using, is influenced by construction environment and backfill soil property, to improve its ring stiffness and meeting operating mode
Demand need to use the tubing of higher rigidity/high tenacity to meet engineer application demand, also improve tubing manufacture and use into
This.
Utility model content
In view of the foregoing, the utility model provides the egg type that drainage system uses a kind of including but not necessarily limited to and cuts
The tubing in face can be satisfied with and solve the above problems.
The tubing of the utility model oval cross-section, basic structure are that the cross sectional shape of pipe is and one smooth in internal face
Both ends in diametric(al) are respectively provided with the egg type shape of radius arc of different sizes, are alternatively referred to as a kind of both ends tools of long axis
There is the special-shaped elliptical shape of different size radius arc.It, should be with the relatively large radius in the drainpipe of oval cross-section during cable laying operation
Upper, the state of the arc end of small radii under is embedded in laying groove arc end.
On the basis of said structure, can further optimize the structure type of use is, described to have radius of different sizes circle
The ratio of maximum width in maximum radial length in the direction of both ends of arc, with wherein relatively large radius end circular arc is（1.2~
1.8）:1, to have better comprehensive performance and benefit.
Resist to further improve above-mentioned oval cross-section tubing during construction and/or use external force rigidity and/or
Toughness in the tube wall periphery of above-mentioned egg type drainpipe, can also be coated with the metallic strengthening structure of spiral winding, such as can be used often
The corresponding metal structure hot melt for strengthening tendon shape is bonded on the outer circumferential surface of tube wall by rule mode, is further coated in its periphery
There is the form of corresponding protection structure sheaf.The modeling band spiral that the protection structure sheaf usually can be used with tube wall is material of the same race
The form of winding.
It wherein, can be there are many different selections to the concrete form of the spiral winding metallic strengthening structure.It for example, can
With using between the tube wall of hot melt engagement and periphery protective layer, hot melt is bonded to the tendon shape metal in section with hollow-core construction
Structure, as the common U-shaped of the inversion shape with hollow-core construction in cross section, V-arrangement, rectangle, it is trapezoidal or on this basis
The other structures form suitably deformed；It can also use between the tube wall of mutual hot melt engagement and periphery protective layer, thermal welding
Closing has the form of solid fin-type tendon shape metal structure；Inside edge and the pipe for making fin-type tendon shape metal structure can also be used
The hot melt engagement of wall outer circumferential surface, and be bonded on the outer ledge hot melt of fin-type tendon shape metal structure and remain mutual point with tube wall
Form of periphery protective layer from shape etc..
It, can also be on the basis of the tube wall periphery of above-mentioned egg type drainpipe is provided with spiral winding metallic strengthening structure
The outside of the spiral winding metallic strengthening structure further heats the supplementary protection for being bonded to and spacing distance being maintained with tube wall
Layer.This intensity with metallic strengthening structure supporting form tubing among inside and outside double-walled can be significantly higher than merely in pipe outer wall
The form of metallic strengthening structure is set, it is also more preferable to the protection effect of tubing.
Compared to the tubing in typical round section, the oval cross-section tubing of the above-mentioned form of the utility model is in embedding construction
When, pipe laying channel excavation width smaller is also more easy to realize and ensure the closely knit of backfill, and its draining flow velocity is fast, waterpower
Can be more superior, thus the gravity current pipe network laying gradient can be slowed down, reduce pipe laying channel excavation expense and/or reduce elevator pump construction
Expense, the bearing capacity at the top of tubing is also stronger, and pipe ring stiffness and ring are flexible, so as to have wider applicability.
Below in conjunction with the specific embodiment by the embodiment shown in that figure, the above of the utility model is remake into one
The detailed description of step.But the scope that this should not be interpreted as to the above-mentioned theme of the utility model is only limitted to following example.It is not taking off
In the case of the above-mentioned technological thought of the utility model, the various replacements made according to ordinary skill knowledge and customary means
Or change, it should all be included in the scope of the utility model.
Description of the drawings
Fig. 1 is a kind of structure diagram of the oval cross-section drainpipe integrality of the utility model.
Fig. 2 is the section view of Fig. 1 oval cross-sections drainpipe.
Fig. 3 is a kind of close-up schematic view of A-A cross-section structures in Fig. 1.
Fig. 4 is another close-up schematic view of A-A cross-section structures in Fig. 1.
Fig. 5 is another close-up schematic view of A-A cross-section structures in Fig. 1.
Fig. 6 is another close-up schematic view of A-A cross-section structures in Fig. 1.
Fig. 7 is the corresponding state schematic diagram of the utility model oval cross-section pipe and typical round variable-section tubular.
Specific embodiment
Fig. 1 and a kind of plastics of the oval cross-section by taking drainpipe as an example shown in Fig. 2 for being the utility model（Such as PE, PVC
Wait common used materials）The typical structure of pipe, the internal face of pipe is smooth, and the cross sectional shape of pipe is two in one diametric(al)
End is respectively the egg type shape with relatively large radius arc end 1 and small radii arc end 2, wherein radius arc of different sizes
The ratio between the maximum radial length L and maximum width W of relatively large radius arc end 2 in direction of both ends L:W=(1.2~1.8):1.In pipe
Also be coated with the metallic strengthening structure 4 of spiral winding on the outer circumferential surface of wall 3 in a manner of thermal welding, structure be thermal welding together in
Outside tendon shape metal structure 41 on the outer circumferential surface of tube wall face, the form of the protection structure sheaf 42 of similary material is also coated with.
It is that the spiral winding metallic strengthening structure 4 being coated on 3 outer circumferential surface of tube wall can be adopted respectively shown in Fig. 3 ~ Fig. 6
Several various forms.
Spiral winding metallic strengthening structure 4 in Fig. 3, using the inverted U-shaped muscle that will there is hollow-core construction in section
Shape metal structure 41 is in the form of sandwich format hot melt is bonded on mutually between the periphery protective layer 42 of hot melt engagement and tube wall 3.
It mutually heats the periphery protective layer 42 of engagement and practically equals to the thickness for adding tube wall with tube wall 3, further improves pipe
The external force resistance performance of material.
Spiral winding metallic strengthening structure 4 in Fig. 4 is similar with Fig. 3's, using will in section have hollow-core construction
Trapezoidal tendon shape metal structure 41 with sandwich format hot melt be bonded on mutually hot melt engagement periphery protective layer 42 and tube wall 3 it
Between, the additional protective layers for being bonded to and spacing distance being maintained with tube wall 3 are also heated in the outside of spiral winding metallic strengthening structure 4
43 form.
Fig. 5 is bonded on the periphery protective layer 42 of mutually hot melt engagement using fin-type tendon shape metal structure 41 is heated
With the form between tube wall 3.
Fig. 6 be on the basis of Fig. 5, also heated in the outside of fin-type spiral winding metallic strengthening structure 4 be bonded to
Tube wall 3 maintains the form of the additional protective layers 43 of spacing distance.
The oval cross-section drainpipe of said structure is compared with the relevant effect of typical round section drainpipe, can be such as Fig. 7 institutes
Show.
1）Oval cross-section pipe can effectively reduce pipe laying channel excavation width, drop bottom earthwork.
According to GB50268-2008《Water supply and drainage pipeline engineering construction and checking and accepting technology modular》It is required that pipe laying channel bottom
Excavation width should be equal to " face width of+2 times of pipeline one sides of pipe outside diameter ".Assuming that one section of caliber of laying is 600mm（600 pipes
The face width of road one side is 0.4 meter）, pipe range is 6 meters of pipeline, routinely construction method respectively to circular tube and
The oval cross-section pipe that the maximum width for being equal to circular tube circulation is 500mm calculates as follows：
Circular tube pipe laying channel bottom excavation area：（0.6m+2×0.4m）The ㎡ of × 6m=2.88,
Oval cross-section pipe pipe laying channel bottom excavation area：（0.5m+2×0.4m）×6m =2.4㎡.
Calculation shows that the egg type pipe of identical circulation is constructed with round tube caliber for 600 tubing, the excavation of oval cross-section pipe
Area wants small by 20%；It is calculated by the same manner, the excavation area of other specification egg type pipes can divide than the round tube of identical circulation
It is not small by 5 ~ 20%.
2）The bearing capacity of bigger can be arranged at the top of oval cross-section pipe.
Oval cross-section tube top portion cambered surface is less than the round tube of identical circulation, i.e. its forced area smaller, is using and circle
In the case of the identical material/structure tube wall of tee section pipe, bearing capacity can be stronger.Since egg type pipe small end is downward, lower end cambered surface
Sharper, support strength is higher than circular bottom of the tube.
3）Oval cross-section pipe can improve the compactness of backfill.
Typical round variable-section tubular is since bottom is wider, and in the pipe laying trench backfill soil to being excavated, bottom of the tube needs
The view field 41 of backfill is wider, to realize and reach standard provide backfill compactness difficulty with respect to bigger, be more easy to occur
The sedimentation occurred due to backfill is uneven；And oval cross-section bottom of the tube needs the view field 4 of backfill then relatively narrow, it is easier to
The compacting of s backfills.
4）The hydraulics of oval cross-section pipe are more superior.
For gravity stream rain sewage running piping, design maximum degree of filling is non-full stream mode.Due to same traffic
Oval cross-section pipe is compared with circular tube is narrower, higher, therefore in identical rain sewage degree of filling, the water in the pipe of oval cross-section
Face height h can be significantly higher than the water surface elevation h1 in circular tube, so as to the flowing potential difference with bigger.Still with above-mentioned
Exemplified by 600 pipes, oval cross-section pipe takes width（W）With height（L）The ratio between be 1:1.5, when the degree of filling of water is 50% in pipe, egg type is cut
The height of water level of facial canal is 410mm, and the height of water level of circular tube is then 300mm, and the water level in the pipe of oval cross-section is higher than circle
Tee section pipe water level 110mm, makes the flow velocity of Guan Zhongshui faster.
5）The construction of oval cross-section pipe can slow down the gradient of pipe laying groove.
Due to the water level in the oval cross-section pipe of same traffic can be higher than circular tube, water velocity faster, thus
In the case of taking identical flow velocity, it is clear that the pipe laying trench design gradient to oval cross-section pipe can be reduced.For example, conventional circular section
It is 0.002 that minimum grade in pipe design, which usually takes plastic tube, other pipes are 0.003；After the pipe of oval cross-section, pipe laying
The design grade of groove can then reduce by 0.0005, i.e. the pipe laying groove cutting depth that is averaged can reduce 0.25m/km.
Claims (6)
1. the tubing of oval cross-section, it is characterized in that the internal face of pipe is smooth and cross sectional shape is the both ends in one diametric(al)
The egg type shape of radius arc of different sizes is respectively provided with, wherein the maximum radial in the direction of both ends of radius arc of different sizes
The ratio of the length L and maximum width W in wherein relatively large radius end circular arc is L:W=(1.2~1.8):1, in tube wall（3）Periphery quilt
It is covered with the metallic strengthening structure of spiral winding（4）.
2. the tubing of oval cross-section as described in claim 1, it is characterized in that described be coated in tube wall（3）The spiral winding of periphery
Metallic strengthening structure（4）To be engaged in the tendon shape metal structure on wall surface periphery in melting（41）Outside, also it is coated with periphery protection
Layer（42）Form.
3. the tubing of oval cross-section as claimed in claim 2, it is characterized in that the spiral winding metallic strengthening structure（4）For
In the tube wall of hot melt engagement（3）With periphery protective layer（42）Between hot melt be bonded in section have hollow-core construction tendon shape metal
Structure（41）Form.
4. the tubing of oval cross-section as claimed in claim 3, it is characterized in that in the spiral winding metallic strengthening structure（4）
Outside also heat and be bonded to and tube wall（3）Maintain the additional protective layers of spacing distance（43）.
5. the tubing of oval cross-section as claimed in claim 2, it is characterized in that the spiral winding metallic strengthening structure（4）For
In the tube wall of mutual hot melt engagement（3）With periphery protective layer（42）Between, hot melt is bonded to solid fin-type tendon shape metal structure
（41）Form.
6. the tubing of oval cross-section as claimed in claim 5, it is characterized in that in the spiral winding metallic strengthening structure（4）
Outside also heat and be bonded to and tube wall（3）Maintain the additional protective layers of spacing distance（43）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721033859.8U CN207454966U (en) | 2017-08-17 | 2017-08-17 | The tubing of oval cross-section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721033859.8U CN207454966U (en) | 2017-08-17 | 2017-08-17 | The tubing of oval cross-section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454966U true CN207454966U (en) | 2018-06-05 |
Family
ID=62249161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721033859.8U Expired - Fee Related CN207454966U (en) | 2017-08-17 | 2017-08-17 | The tubing of oval cross-section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454966U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159840A (en) * | 2019-06-28 | 2019-08-23 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of automatically cleaning abnormity double-layer structure wall pipe and its installation method |
| CN110185850A (en) * | 2019-06-28 | 2019-08-30 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of automatically cleaning abnormity ripple struction wall pipe |
| WO2020259467A1 (en) * | 2019-06-28 | 2020-12-30 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-cleaning special-shaped corrugated structure wall pipe |
| WO2020259468A1 (en) * | 2019-06-28 | 2020-12-30 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-cleaning special-shaped solid-wall pipe and installation method therefor |
-
2017
- 2017-08-17 CN CN201721033859.8U patent/CN207454966U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159840A (en) * | 2019-06-28 | 2019-08-23 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of automatically cleaning abnormity double-layer structure wall pipe and its installation method |
| CN110185850A (en) * | 2019-06-28 | 2019-08-30 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of automatically cleaning abnormity ripple struction wall pipe |
| WO2020259467A1 (en) * | 2019-06-28 | 2020-12-30 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-cleaning special-shaped corrugated structure wall pipe |
| WO2020259468A1 (en) * | 2019-06-28 | 2020-12-30 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-cleaning special-shaped solid-wall pipe and installation method therefor |
| CN110159840B (en) * | 2019-06-28 | 2024-06-07 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-cleaning special-shaped double-layer structure wall pipe and installation method thereof |
| CN110185850B (en) * | 2019-06-28 | 2024-06-07 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-cleaning special-shaped corrugated structure wall pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20180817 |