CN205350681U - Bent pipe structure , pipeline and straight tube structure - Google Patents
Bent pipe structure , pipeline and straight tube structure Download PDFInfo
- Publication number
- CN205350681U CN205350681U CN201620127437.6U CN201620127437U CN205350681U CN 205350681 U CN205350681 U CN 205350681U CN 201620127437 U CN201620127437 U CN 201620127437U CN 205350681 U CN205350681 U CN 205350681U
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- China
- Prior art keywords
- swirl vane
- pipe structure
- straight length
- bend pipe
- fluid
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Abstract
The utility model relates to a pipe fitting field discloses a bent pipe structure, pipeline and straight tube structure. Bent pipe structure is including being used for circulating fluidic body (1), the body has bent pipe portion (12), bent pipe structure still includes whirl portion (14), in the direction of fluid flow, whirl portion (14) sets up in the body and lie in bent pipe portion's the upper reaches to make the fluid flow through with the form of whirl bent pipe portion. The utility model discloses a bent pipe structure gets up to form the whirl through the feasible fluid rotation that gets into bent pipe portion of whirl portion, produce the tangent velocity component of circumference with bent pipe portion, because above -mentioned velocity component's existence, the velocity of flow distribution that makes the fluid get into behind the bent pipe portion tends to even, avoid the flow separation phenomenon, thereby the unable swirl district that forms, reduce the fluidic loss of pressure through bent pipe portion, and then reduce to have the fluid pressure loss of this bent pipe structure's pipeline, the efficiency of use the work of the equipment of pipeline is improved.
Description
Technical field
This utility model relates to pipe fitting field, in particular it relates to a kind of bend pipe structure, pipeline and straight tube structure.
Background technology
Pipeline is widely used in various mechanical chemical industry equipment for carrying the fluids such as fuel, lubricating oil, coolant, for instance, the fuel feed system of vehicle, gas handling system, gas extraction system, lubricating system, cooling system etc..Pump and pipeline are the critical components of fluid conveying, and wherein, pump provides pressure to drive fluid to flow in pipeline for fluid delivery system, and the pressure loss in fluid course of conveying in pipeline directly affects the work efficiency of fluid delivery system.
The pressure loss of pipeline mainly includes two kinds: first, loses along stroke pressure, refers to when fluid flows in the duct be the energy of the frictional resistance overcoming tube wall and loss；Second, local pressure loss, refer to when fluid flows through bend pipe, the flow velocity size of fluid and flow direction are forced to change sharp, flow velocity is uneven along the radial distribution of bend pipe, and then produces velocity gradient, causes that flow separation forms whirlpool district, rubbing action in aggravation fluid, produces the bigger pressure loss.
Continuous progress along with Machine Manufacturing Technology, the plant equipment such as automobile engine become more and more compacter, pipeline structure also becomes to become increasingly complex, getting more and more of bend pipe in pipeline, make the local pressure loss that fluid produces through bend pipe increasing, and, the extensive use of the turbocharging technology of electromotor, make the pressure abruptly increase in pipeline, more significantly through the pressure loss of the fluid of bend pipe.
Thus, it is desirable to have the device of the pressure loss of a kind of fluid that can reduce through bend pipe can overcome or at least alleviate the drawbacks described above of prior art.
Utility model content
The purpose of this utility model is to provide a kind of bend pipe structure, and this bend pipe structure can effectively reduce the pressure loss of the fluid through bend pipe.
To achieve these goals, this utility model provides a kind of bend pipe structure, this bend pipe structure includes the body for flow-through fluid, described body has bent portion, described bend pipe structure also includes eddy flow portion, in the direction of fluid, described eddy flow portion is arranged in described body and is positioned at the upstream of described bent portion, so that fluid flows through described bent portion with the form of eddy flow.
Preferably, described bend pipe structure includes the import straight length being connected with the arrival end of described bent portion, and wherein, described eddy flow portion is arranged on described import straight length.
Preferably, described eddy flow portion includes the multiple swirl vanes being fixed on the tube wall of described import straight length, there is between intersecting lens and the bearing of trend of described import straight length of the tube wall of described swirl vane and described import straight length slanted angle, and each described swirl vane all tilts towards direction clockwise or counter-clockwise.
Preferably, identical with the spacing of the arrival end of described bent portion multiple described swirl vanes constitute a swirl vane group.
Preferably, the described swirl vane in same described swirl vane group is evenly arranged along the circumference of described import straight length, and the described slanted angle of each described swirl vane, the blade shape in same described swirl vane group is all identical with blade dimensions.
Preferably, described eddy flow portion includes the multiple described swirl vane group set gradually along the bearing of trend of described import straight length, and the described swirl vane of each described swirl vane group all tilts towards direction clockwise or counter-clockwise.
Preferably, the quantity of described swirl vane in each described swirl vane group, the slanted angle of described swirl vane, the blade shape of described swirl vane and/or the blade dimensions of described swirl vane differ.
Preferably, in the cross section of described import straight length, the 1/6 to 1/3 of the internal diameter that radial dimension is described import straight length of each described swirl vane.
Preferably, described swirl vane is prismatic blade or camber blades, and/or, the section shape of described swirl vane is wing.
According to another aspect of the present utility model, it is provided that a kind of pipeline, this pipeline includes multiple bend loss, and at least one described bend loss includes according to bend pipe structure mentioned above.
Preferably, each the described bend loss in described pipeline all includes described bend pipe structure.
According to another aspect of the present utility model, a kind of straight tube structure is provided, including the straight length for being arranged in bend loss upstream, circumferentially direction, the inside of described straight length is arranged at intervals with multiple swirl vane radially extended, and described swirl vane makes the fluid flow through can flow into bend loss with cyclonic form.
Preferably, described swirl vane is fixed on the tube wall of described straight length, there is between intersecting lens and the bearing of trend of described straight length of the tube wall of described swirl vane and described straight length slanted angle, and each described swirl vane all tilts towards direction clockwise or counter-clockwise.
Preferably, described straight tube structure includes the rotating shaft arranged along the pipe axis of described straight length, and multiple described swirl vane circumferences are distributed in described rotating shaft.
Pass through technique scheme, the fluid rotary entering bent portion is made to get up to form eddy flow by eddy flow portion, produce the velocity component tangent with the circumference of bent portion, existence due to above-mentioned velocity component so that the velocity flow profile after fluid entrance bent portion tends to uniform, it is to avoid flow separation phenomenon, thus whirlpool district cannot be formed, reduce the pressure loss of fluid through bent portion, and then reduce the fluid pressure loss of the pipeline with this bend pipe structure, improve the work efficiency of the equipment using pipeline.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
Fig. 1 is the bend pipe structure schematic diagram according to a kind of embodiment of the present utility model.
Fig. 2 is the transverse sectional view of the import straight length of the bend pipe structure shown in Fig. 1.
Fig. 3 is longitudinal perspective view of the import straight length of the bend pipe structure shown in Fig. 1.
Description of reference numerals
1 body；11 import straight lengths；
12 bent portions；13 outlet straight lengths；
14 eddy flow portions；15 swirl vanes.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
According to an aspect of the present utility model, a kind of bend pipe structure is provided, referring to Fig. 1, this bend pipe structure includes the body 1 for flow-through fluid, body 1 has bent portion 12, and described bend pipe structure also includes eddy flow portion 14, in the direction of fluid, eddy flow portion 14 is arranged in body 1 and is positioned at the upstream of bent portion 12, so that fluid flows through bent portion 12 with the form of eddy flow.
The fluid rotary entering bent portion 12 is made to get up to form eddy flow by eddy flow portion 14, produce the velocity component tangent with the circumference of bent portion 12, existence due to above-mentioned velocity component, velocity flow profile after making fluid enter bent portion 12 tends to uniform, avoiding flow separation phenomenon, thus whirlpool district cannot be formed, minimizing is through the pressure loss of the fluid of bent portion 2, and then reduce the fluid pressure loss of pipeline with this bend pipe structure, improve the work efficiency of the equipment using pipeline.
It is understandable that, eddy flow portion 14 can be arranged on the straight tube of the upstream of bent portion 12, it is also possible to is arranged on a part of bend pipe of upstream of bent portion 12, for instance, the arrival end place of bent portion 12 can be arranged on, it is possible to make the fluid entering bent portion 12 form eddy flow.Further, the pipeline section of the upstream being positioned at bent portion 12 can be one-body molded with bent portion 12, it is also possible to links together with after bent portion 12 molding respectively, and user can select suitable structure according to actual needs.
Preferably, described bend pipe structure includes the import straight length 11 being connected with the arrival end of bent portion 12, and wherein, eddy flow portion 14 is arranged on import straight length 11.It is arranged on straight tube by eddy flow portion 14 to be more beneficial for the formation of eddy flow, reduces fluid local pressure loss when bent portion 12.And it is at regular intervals with the arrival end of bent portion 12 tool to be preferably eddy flow portion 14, better to form eddy flow.
The form in eddy flow portion 14 can carry out suitable selection according to actual needs, such as, eddy flow portion 14 includes the rotating shaft installed along the axis of pipe and is arranged in rotating shaft multiple blades, under the effect of blade, there is the velocity component tangent with the circumference of bent portion 12 when fluid flows through blade, now, blade in rotating shaft and rotating shaft should minimize in the impact of flow velocity of convection cell, or suitable rotation lines is set on the inwall of import straight length 11 so that the fluid flowing through this import straight length 11 can form eddy flow.Preferably, eddy flow portion 14 includes the multiple swirl vanes 15 being fixed on the tube wall of import straight length 11, there is between intersecting lens and the bearing of trend of import straight length 11 of the tube wall of swirl vane 15 and import straight length 11 slanted angle, and each swirl vane 15 all tilts towards direction clockwise or counter-clockwise.Swirl vane 15 simple in construction, it is simple to manufacture, and the flow resistance of swirl vane 15 convection cell being arranged on tube wall is also less, it is to avoid affect the flowing of fluid due to the setting in eddy flow portion 14.
The shape of each swirl vane 15, position and distribution form can carry out suitable design according to actual needs, it is possible to make the fluid entering bent portion 12 form eddy flow.Shown in Figure 3, the multiple swirl vanes 15 identical with the spacing of the arrival end of bent portion 12 constitute a swirl vane group so that enter the flow velocity of fluid of bent portion 12 evenly.
Further preferably, referring to shown in Fig. 1 and Fig. 2, swirl vane 15 in same described swirl vane group is evenly arranged along the circumference of import straight length 11, and the described slanted angle of each swirl vane 15, blade shape in same described swirl vane group is all identical with blade dimensions, the uniformity of the flow velocity of the fluid of raising entrance bent portion 12, and the manufacture of the slanted angle of each swirl vane, blade shape swirl vane of being also more convenient for all identical with blade dimensions further and layout.
Preferably, eddy flow portion 14 includes the multiple described swirl vane group set gradually along the bearing of trend of import straight length 11, the swirl vane 15 of each described swirl vane group all tilts towards direction clockwise or counter-clockwise, each described swirl vane component layers is arranged, in conjunction with using, make fluid accelerate to rotate, strengthen the eddy flow effect of fluid.Wherein, the quantity of described swirl vane group can carry out suitable selection according to actual needs, for instance, two, three etc..Wherein, the parameter such as blade dimensions of the quantity of swirl vane 15 in each described swirl vane group, the slanted angle of swirl vane 15, the blade shape of swirl vane 15 and/or swirl vane 15 can select identical or different according to actual needs.
Preferably, the quantity of swirl vane 15 in each described swirl vane group, the slanted angle of swirl vane 15, the blade shape of swirl vane 15 and/or the blade dimensions of swirl vane 15 differ, the action effect making each swirl vane group has different so that the flow velocity in the eddy flow that fluid is formed behind eddy flow portion 14 is more uniform along the radial distribution of bent portion 12.
In the cross section of import straight length 11, the size of each described swirl vane 15 can carry out suitable selection according to actual needs with the ratio of the internal diameter of import straight length 11, it is possible to makes fluid form suitable eddy flow.Avoid the oversize proper flow causing swirl vane 15 excessively to interfere fluid of swirl vane 15, avoid simultaneously swirl vane 15 undersized cannot make fluid formed eddy flow, preferably, in the cross section of import straight length 11, the 1/6 to 1/3 of the internal diameter that radial dimension is import straight length 11 of each swirl vane 15.
The blade shape of swirl vane 15 can select suitable shape according to actual needs, it is preferable that swirl vane 15 is prismatic blade or camber blades, prismatic blade or camber blades simple in construction, and can produce eddy flow preferably.Similarly, the section shape of swirl vane 15 can carry out suitable selection according to actual needs, such as, strip section, arcuate profile etc., preferably, the section shape of swirl vane 15 is wing, and the swirl vane 15 with aerofoil profile has better hydrodynamic characteristic, advantageously in the formation of eddy flow.
According to another aspect of the present utility model, it is provided that a kind of pipeline, this pipeline includes multiple bend loss, and at least one described bend loss includes according to bend pipe structure mentioned above.Wherein, described bend loss can be entirely formed as the pipe of bending, and eddy flow portion 14 may be provided at the arrival end place of described bend loss, and bent portion 12 forms the downstream part in eddy flow portion 14；Or described bend loss includes the straight-tube portion arranged near upstream and the bent tube section arranged near downstream, and eddy flow portion 14 is formed on described straight-tube portion, embodiment as shown in Figure 1.Above-mentioned pipeline can reduce the local pressure loss of the fluid of circulation in pipeline, improves the work efficiency of the equipment applying this pipeline, for instance, by above-mentioned pipeline application on the engine, the work efficiency of the blood circulation of electromotor can be improved, reduce energy loss, and save energy.
Wherein, the quantity of the bend loss comprising above-mentioned bend pipe structure in pipeline can carry out suitable selection according to actual needs, those bend loss arrange this bend pipe structure and carries out suitable selection also dependent on being actually needed, if the local pressure loss of pipeline is not as big, arranging described bend pipe structure on the optional only indivedual bend loss in pipeline, eddy flow effect can keep to next bend loss.Preferably, each the described bend loss in described pipeline all includes described bend pipe structure so that the pressure loss of pipeline is less, improves the fluid transfer efficiency of pipeline.
According to another aspect of the present utility model, a kind of straight tube structure is provided, including the straight length for being arranged in bend loss upstream, circumferentially direction, the inside of described straight length is arranged at intervals with multiple swirl vane radially extended, and described swirl vane makes the fluid flow through can flow into bend loss with cyclonic form.This straight length is arranged on the upstream of corresponding bend loss after can individually producing manufacture so that fluid can form eddy flow after the effect of the swirl vane in manifold configuration, and then reduces the fluid pressure loss at bend loss.
Wherein, in the shown embodiment, when bent portion 12 and import straight length 11 are separately formed, independent import straight length 11 can as above-mentioned straight tube structure.
Preferably, described swirl vane is fixed on the tube wall of described straight length, there is between intersecting lens and the bearing of trend of described straight length of the tube wall of described swirl vane and described straight length slanted angle, and each described swirl vane all tilts towards direction clockwise or counter-clockwise.Swirl vane simple in construction, it is simple to manufacture, and the resistance of convection cell is less.
The arrangement form of described swirl vane is not limited to upper type, and user also may be chosen so that described straight tube structure includes the rotating shaft arranged along the pipe axis of described straight length, and multiple described swirl vane circumferences are distributed in described rotating shaft.Wherein, needing, suitable supporting construction is set between tube wall and rotating shaft rotating shaft has been fixedly installed on the pipe axis place of straight length, further, in order to avoid the supporting mechanism convection cell of rotating shaft and rotating shaft produces bigger resistance, it is preferred to the supporting mechanism of rotating shaft and rotating shaft is tiny as much as possible.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by this utility model separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (14)
1. a bend pipe structure, this bend pipe structure includes the body (1) for flow-through fluid, described body (1) has bent portion (12), it is characterized in that, described bend pipe structure also includes eddy flow portion (14), in the direction of fluid, described eddy flow portion (14) is arranged in described body (1) and is positioned at the upstream of described bent portion (12), so that fluid flows through described bent portion (12) with the form of eddy flow.
2. bend pipe structure according to claim 1, it is characterized in that, described bend pipe structure includes the import straight length (11) being connected with the arrival end of described bent portion (12), wherein, described eddy flow portion (14) is arranged on described import straight length (11).
3. bend pipe structure according to claim 2, it is characterized in that, described eddy flow portion (14) includes the multiple swirl vanes (15) being fixed on the tube wall of described import straight length (11), there is between intersecting lens and the bearing of trend of described import straight length (11) of the tube wall of described swirl vane (15) and described import straight length (11) slanted angle, and each described swirl vane (15) all tilts towards direction clockwise or counter-clockwise.
4. bend pipe structure according to claim 3, it is characterised in that the multiple described swirl vane (15) identical with the spacing of the arrival end of described bent portion (12) constitutes a swirl vane group.
5. bend pipe structure according to claim 4, it is characterized in that, described swirl vane (15) in same described swirl vane group is evenly arranged along the circumference of described import straight length (11), and the described slanted angle of each described swirl vane (15), the blade shape in same described swirl vane group is all identical with blade dimensions.
6. bend pipe structure according to claim 4, it is characterized in that, described eddy flow portion (14) includes the multiple described swirl vane group set gradually along the bearing of trend of described import straight length (11), and the described swirl vane (15) of each described swirl vane group all tilts towards direction clockwise or counter-clockwise.
7. bend pipe structure according to claim 6, it is characterized in that, the quantity of described swirl vane (15) in each described swirl vane group, the slanted angle of described swirl vane (15), the blade shape of described swirl vane (15) and/or the blade dimensions of described swirl vane (15) differ.
8. the bend pipe structure according to any one in claim 3-7, it is characterized in that, in the cross section of described import straight length (11), the 1/6 to 1/3 of the internal diameter that radial dimension is described import straight length (11) of each described swirl vane (15).
9. bend pipe structure according to claim 1, it is characterised in that described swirl vane (15) is prismatic blade or camber blades, and/or,
The section shape of described swirl vane (15) is wing.
10. a pipeline, this pipeline includes multiple bend loss, it is characterised in that at least one described bend loss includes the bend pipe structure according to any one in claim 1-9.
11. pipeline according to claim 10, it is characterised in that each the described bend loss in described pipeline all includes described bend pipe structure.
12. a straight tube structure, including the straight length for being arranged in bend loss upstream, it is characterized in that, circumferentially direction, the inside of described straight length is arranged at intervals with multiple swirl vane radially extended, and described swirl vane makes the fluid flow through can flow into bend loss with cyclonic form.
13. straight tube structure according to claim 12, it is characterized in that, described swirl vane is fixed on the tube wall of described straight length, there is between intersecting lens and the bearing of trend of described straight length of the tube wall of described swirl vane and described straight length slanted angle, and each described swirl vane all tilts towards direction clockwise or counter-clockwise.
14. the straight tube structure according to claim 12 or 13, it is characterised in that described straight tube structure includes the rotating shaft arranged along the pipe axis of described straight length, and multiple described swirl vane circumferences are distributed in described rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127437.6U CN205350681U (en) | 2016-02-18 | 2016-02-18 | Bent pipe structure , pipeline and straight tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127437.6U CN205350681U (en) | 2016-02-18 | 2016-02-18 | Bent pipe structure , pipeline and straight tube structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350681U true CN205350681U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620127437.6U Expired - Fee Related CN205350681U (en) | 2016-02-18 | 2016-02-18 | Bent pipe structure , pipeline and straight tube structure |
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| Country | Link |
|---|---|
| CN (1) | CN205350681U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051359A (en) * | 2016-07-26 | 2016-10-26 | 上海亨公电线电缆有限公司 | Stand pipe bottom elbow |
| CN106885397A (en) * | 2017-03-31 | 2017-06-23 | 深圳沃海森科技有限公司 | For the spoiler of caravan A/C evaporator pipe |
| CN107091390A (en) * | 2016-02-18 | 2017-08-25 | 北京福田康明斯发动机有限公司 | Bend pipe structure, pipeline and straight tube structure |
-
2016
- 2016-02-18 CN CN201620127437.6U patent/CN205350681U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091390A (en) * | 2016-02-18 | 2017-08-25 | 北京福田康明斯发动机有限公司 | Bend pipe structure, pipeline and straight tube structure |
| CN106051359A (en) * | 2016-07-26 | 2016-10-26 | 上海亨公电线电缆有限公司 | Stand pipe bottom elbow |
| CN106885397A (en) * | 2017-03-31 | 2017-06-23 | 深圳沃海森科技有限公司 | For the spoiler of caravan A/C evaporator pipe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20220218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |