CN205781633U - A kind of 90 degree of low-resistance elbows - Google Patents
A kind of 90 degree of low-resistance elbows Download PDFInfo
- Publication number
- CN205781633U CN205781633U CN201620361246.6U CN201620361246U CN205781633U CN 205781633 U CN205781633 U CN 205781633U CN 201620361246 U CN201620361246 U CN 201620361246U CN 205781633 U CN205781633 U CN 205781633U
- Authority
- CN
- China
- Prior art keywords
- straight length
- fin
- degree
- group
- elbow
- 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.)
- Active
Links
Abstract
The purpose of this utility model is to provide a kind of 90 degree of low-resistance elbows, including elbow body, elbow body includes bend loss and the first straight length and the second straight length, the inner edge of bend loss longitudinal cross-section and outside are 1/4 circular arc, first straight length and the second straight length are all connected with bend loss and lay respectively at arrival end and the port of export of bend loss, in an angle of 90 degrees between first straight length and the second straight length, bend loss and the first straight length and the second straight length are hollow-core construction, the first group of fin and second group of fin adapted with elbow body shape is installed in hollow-core construction, first group of fin is positioned in second group of fin, the corner of first group of fin and second group of fin is consistent with bend loss.This utility model reduces the fluid impact to elbow pipeline and the formation of whirlpool, can be effectively reduced the fluid impedance losses caused at channel bend due to backflow or whirlpool, reduces the degree of wear and the probability of fluid leakage of elbow pipeline.
Description
Technical field
The utility model relates to a kind of pipeline, specifically with the pipeline of bend corner.
Background technology
Nowadays, a requisite part during pipeline has become people's life.Either in life the most in the industry,
The use of pipeline is the most visible, due to the reason such as external environment condition or fabric structure, when in pipeline, flow direction needs to change 90
When spending, the use of 90 degree of elbows is then necessary.
Existing 90 degree of elbows are typically only a kind of 90 degree of bend pipes, can only meet the change of fluid flow direction.But,
Some pipe diameters are very big or fluids within pipes flowing velocity quickly time, use 90 degree of elbows of tradition, fluid is often 90
Degree corner is by certain mobile obstacle, owing to effect of inertia fluid collides with tube wall, forms backflow or whirlpool, causes
The loss of fluid flow energy, increases flow resistance；Even can cause stream owing to flow-reversing impingement causes inside pipe fitting pressure to rise
The phenomenon that body is revealed.
The patent of Publication No. CN 101315194 A, discloses a kind of smoke canal elbow flow guiding device, 90 degree of elbows
Install several deflectors additional, it is achieved to flue gas water conservancy diversion and uniform effect.Although achieving the most to a certain extent flue gas
Water conservancy diversion and uniform effect, but, owing to the shape of deflector needs to meet flow field flow rule, its processing is general the numbest
Tired, and during long-term use, owing to flue gas containing the graininess impurity such as some dusts, deflector can accumulate relatively
Thick dust, the existence of dust makes the original streamline shape in outside of deflector change, affects water conservancy diversion effect, even occur
Blocking.The most this structure increases structural complexity and the processing cost of elbow.
Summary of the invention
The purpose of this utility model is to provide while meeting original 90 degree of elbow functions and reduces elbow corner
Fluid flow resistance, and realize the uniform 90 degree of low-resistance elbows of one with guide functions of convection cell.
The purpose of this utility model is achieved in that
A kind of 90 degree of low-resistance elbows of this utility model, is characterized in that: include elbow body, elbow body include bend loss with
And first straight length and the second straight length, the inner edge of bend loss longitudinal cross-section and outside are 1/4 circular arc, the first straight length and
Two straight lengths are all connected with bend loss and lay respectively at arrival end and the port of export of bend loss, the first straight length and the second straight length
Between in an angle of 90 degrees, bend loss and the first straight length and the second straight length are hollow-core construction, be provided with in hollow-core construction with
First group of fin that elbow body shape adapts and second group of fin, first group of fin is positioned in second group of fin, first group
The corner of fin and second group of fin is consistent with bend loss.
This utility model can also include:
1, elbow body, first group of fin and second group of fin are three concentric circulars on same cross section, and three same
Heart diameter of a circle is respectively d from small to large1、d2、d3, and
Advantage of the present utility model is: this utility model uses and installs two groups of coaxial fins additional in former 90 degree of elbow pipelines
Method, be divided into three strands of current during by fluids within pipes by 90 degree of elbows, reduce fluid to the impact of elbow pipeline and whirlpool
The formation in whirlpool, can be effectively reduced the fluid impedance losses caused at channel bend due to backflow or whirlpool, reduces elbow
The degree of wear of pipeline and the probability of fluid leakage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is profile of the present utility model.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings and this utility model be described in more detail:
In conjunction with Fig. 1～2, a kind of 90 degree of low-resistance elbows of this utility model, including the elbow body 2 in 90 degree of bendings and two
The straight tube 1 and 3 connected.Installing two groups of fins 4 and 5 in elbow additional, present three concentric circulars from the point of view of swan neck cross section, these are three years old
The anchor ring area distributions rules such as individual concentric circular meets, the area of i.e. middle roundlet is respectively equal to the area of two annulus.Meanwhile, wing
The sheet corner mode 90 degree of corners is identical with pipe.From the point of view of this utility model section structure, 90 degree of elbow corners
Place all uses 1/4 circular arc and circular arc tangent with both sides straight tube, it is achieved seamlessly transit.
Fluid in pipeline through these 90 degree low-resistance elbows, pass through simultaneously middle little round pipe and two circular ring pipes from
Arrival end flows into, and flows out from the port of export after 90 degree of corners.
Three concentric circulars presented from the point of view of elbow cross section are satisfied waits anchor ring area distributions rule that is three concentrically ringed
Diameter ratio meets from small to large:
What 90 degree of general elbows the most only met fluids within pipes turns to requirement, rapid at rate of flow of fluid or
The occasion that pipe diameter is the biggest, bigger fluid impedance losses is often caused in elbow, simultaneously because the flowing of elbow fluid
The backflow formed or whirlpool can accelerate the abrasion of elbow and even result in the phenomenon of fluid leakage.
With reference to accompanying drawing 1, the utility model discloses a kind of 90 degree of low-resistance elbows, including elbow body 2 He of 90 degree of bendings
The straight tube 1 and 3 that two connects.Equipped with two groups of fins 4 and 5 in 90 degree of low-resistance elbows, fin corner mode and 90 degree of channel bends
Corner mode is identical.And all use 1/4 circular arc to carry out transition, circular arc and two straight tube phase 90 degree of elbow corners
Cut, it is achieved seamlessly transit.
With reference to accompanying drawing 2, from the point of view of these 90 degree of low-resistance elbow cross-section of pipeline, present three concentric circulars, and these three
The anchor ring area distributions rules such as the annulus that concentric circular is formed meets, i.e. concentric circular diameter meets from small to large
Assume that fluid flows into from these 90 degree of low-resistance elbow inlet ends, then fluid will be divided into three strands, and one is from middle roundlet
Elbow pipeline flows through, and other two stocks, not along two circulating line flowings, are so guiding fluid to realize 90 degree of turnings in the duct
While flowing, prevent fluid 90 degree of elbow backflows or to form whirlpool to a certain extent, reduce fluid flow resistance,
Alleviate the fluid impact to 90 degree of elbow pipelines, reduce the risk that fluid leaks 90 degree of elbows.
Disclosed in this utility model, a kind of 90 degree of low-resistance elbows, can apply rapid at fluids within pipes flow velocity or pipeline is straight
The occasion that footpath is the biggest, while realizing guide functions, reduces 90 degree of elbow fluid flow resistance and the energy loss of fluid,
And greatly reduce fluids within pipes 90 degree of elbows owing to backflow or the pressure that causes of whirlpool raise and causes fluid to leak
Risk, alleviates the abrasion at elbow pipeline.
This utility model simple in construction, easily manufactured, practicality is high, with low cost, for some at 90 degree of elbow pipelines
Flow velocity occasion very fast, that fluid resistance is bigger in place's is the most applicable.
A kind of 90 degree of low-resistance elbows of this utility model, the straight tube 1 connected including the elbow body 2 in 90 degree of bendings and two
With 3,90 degree of low-resistance elbows have two groups of fins 4 and 5, from the point of view of elbow pipeline cross-sectional structure, present three concentric circulars, two
Corner and 90 degree of low-resistance elbow corners of group fin 4 and 5 are completely the same, and fluid flows into from one end, through 90 degree of low-resistance elbow corners,
Flow direction changes 90 degree, flows out from the other end.
Three concentric circulars that elbow pipeline cross-sectional structure presents such as meet at the regularity of distribution of anchor ring area, i.e. in the middle of little
The area of circle is respectively equal to the area of two annulus.
Two groups of fins are fixed on outside elbow pipe interior, are equivalent on the basis of original 90 degree of elbow pipelines in inside
Embed that two corners and original 90 degree of elbow corners are on all four and diameter such as meets at 90 degree of elbows of anchor ring area regularity.
Elbow corner is made up of 1/4 circular arc, and the corner of central fins 4 and 5 is to be made up of 1/4 circular arc and 6 equally
The center of circle of circular arc is same point.
Claims (2)
1. 90 degree of low-resistance elbows, is characterized in that: include that elbow body, elbow body include bend loss and the first straight length
With the second straight length, the inner edge of bend loss longitudinal cross-section and outside be 1/4 circular arc, the first straight length and the second straight length all with
Bend loss is connected and lays respectively at arrival end and the port of export of bend loss, in 90 degree between the first straight length and the second straight length
Angle, bend loss and the first straight length and the second straight length are hollow-core construction, are provided with and this bodily form of elbow in hollow-core construction
First group of fin that shape adapts and second group of fin, first group of fin is positioned in second group of fin, first group of fin and second
The corner of group fin is consistent with bend loss.
A kind of 90 degree of low-resistance elbows the most according to claim 1, is characterized in that: elbow body, first group of fin and
Two groups of fins are three concentric circulars on same cross section, and three concentrically ringed diameters are respectively d from small to large1、d2、d3, and
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361246.6U CN205781633U (en) | 2016-04-26 | 2016-04-26 | A kind of 90 degree of low-resistance elbows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361246.6U CN205781633U (en) | 2016-04-26 | 2016-04-26 | A kind of 90 degree of low-resistance elbows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781633U true CN205781633U (en) | 2016-12-07 |
Family
ID=57411363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620361246.6U Active CN205781633U (en) | 2016-04-26 | 2016-04-26 | A kind of 90 degree of low-resistance elbows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864546A (en) * | 2016-04-26 | 2016-08-17 | 哈尔滨工程大学 | 90-degree low-resistance bend |
-
2016
- 2016-04-26 CN CN201620361246.6U patent/CN205781633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864546A (en) * | 2016-04-26 | 2016-08-17 | 哈尔滨工程大学 | 90-degree low-resistance bend |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5992465A (en) | Flow system for pipes, pipe fittings, ducts and ducting elements | |
| CN106523830B (en) | A kind of 90 ° of bend pipes of band water conservancy diversion gusset | |
| CN106439347A (en) | 90-degree bent pipe guide piece arrangement method | |
| CN105570598A (en) | Pipe rectifying device | |
| CN205781633U (en) | A kind of 90 degree of low-resistance elbows | |
| CN101832625B (en) | Low-resistance square elbow | |
| CN106287088A (en) | A kind of high pressure elbow | |
| CN102410421A (en) | Novel 90-degree variable-curvature bent pipe | |
| CN105864546A (en) | 90-degree low-resistance bend | |
| CN101813224B (en) | Low-resistance square diverging reducing component | |
| CN209671802U (en) | A kind of pipe joint | |
| CN213630743U (en) | Rotational flow synergistic device | |
| US11739774B1 (en) | Flow modifying device with performance enhancing vane structure | |
| CN112325398B (en) | Rotational flow synergy device | |
| CN101672368A (en) | Stop valve of pipeline | |
| CN208700065U (en) | A kind of conveying device | |
| CN208719668U (en) | A kind of damping type throttling set | |
| CN205975837U (en) | Strenghthened type spiral pipe | |
| CN204083619U (en) | The quiet bend pipe tools of a kind of reducing | |
| CN205781628U (en) | A kind of wire connection reducer tee being easily installed | |
| CN207162887U (en) | A kind of streamlined lintel apparatus | |
| CN205536474U (en) | Nuclear power station ventilation system's shock -resistant current equalizer | |
| CN205388202U (en) | Air supply line is with dividing air cylinder | |
| CN212080461U (en) | T-shaped three-way pipe | |
| CN109388893B (en) | Noise optimization method for three-way and four-way pipelines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211027 Address after: 150060 No. 2, Weihai second road, haping road concentration area, Pingfang district (Economic Development Zone), Harbin City, Heilongjiang Province Patentee after: Harbin Qichuang gas turbine Co.,Ltd. Address before: 150001 Intellectual Property Office, Harbin Engineering University science and technology office, 145 Nantong Avenue, Nangang District, Harbin, Heilongjiang Patentee before: HARBIN ENGINEERING University |