CN206036498U - Adopt uniform flow distribution device of big or small blade design - Google Patents
Adopt uniform flow distribution device of big or small blade design Download PDFInfo
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- CN206036498U CN206036498U CN201620841596.2U CN201620841596U CN206036498U CN 206036498 U CN206036498 U CN 206036498U CN 201620841596 U CN201620841596 U CN 201620841596U CN 206036498 U CN206036498 U CN 206036498U
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- blade
- big
- internal lining
- lining pipe
- vanelets
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- 238000009826 distribution Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 8
- 230000002459 sustained effect Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- UJCHIZDEQZMODR-BYPYZUCNSA-N (2r)-2-acetamido-3-sulfanylpropanamide Chemical compound CC(=O)N[C@@H](CS)C(N)=O UJCHIZDEQZMODR-BYPYZUCNSA-N 0.000 description 1
- 241001669680 Dormitator maculatus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an adopt uniform flow distribution device of big or small blade design belongs to liquid filling pipeline flow field control field. The device includes sleeve pipe, big blades, little blade and interior bushing pipe, and big blades and little blade are circumference and arrange fixed mounting between sleeve pipe and interior bushing pipe, through equitable blade distribution and blade profile design, can make the vortex system cut, break up around on the multirow blade, lets the whirlpool of large scale become the whirlpool of small scale, be close to fluid from the inside lining duct flow mistake that runner central point put, the rectifying effect of the longer cylinder runner through interior bushing pipe, the central point who has strengthened flow straightener puts rectification effect, finally reaches uniform flow field's purpose. Uniform flow distribution device compact structure, the installation space demand is little, be applicable to and install at relatively poor pump mouth entrance point and the downstream of the shutter of influent stream state.
Description
Technical field
This utility model is related to that a kind of employing big and small blade is designed and is arranged on the poor position of fluid flow state in pipeline
The even flow field device put, belongs to charging line flow field control field.
Background technology
Used as typical turbomachine, its vibration noise level is not only subject to rotor to the slewings such as water pump, the hydraulic turbine
The impact of the mechanical factors such as dynamic balancing, it is also the principal element for affecting its level of vibration that working medium enters flow section velocity field state.It is excellent
It is that, for the even level for improving influent stream fluid, the parameter evaluated into stream mode mainly includes influent stream that chemical industry matter enters stream mode purpose
The axial velocity profile of end face, average axial velocity angle, pressure distribution and unsteady velocity fluctuation etc..To turbomachine
Speech, irrational influent stream VELOCITY DISTRIBUTION can directly affect impeller inlet speed triangle, cause fluid in blade pressure surface or suction
Power face occurs to separate, and then causes the acting of impeller different leaves and different leaves height and position different from design load, finally
The vibration noise level of turbomachine can be caused to increase, long-term work reduces the service life of equipment in this state.
In addition, the cabin cabin interior limited space of the main equipment such as large ship, naval vessels so that system pipeline is without foot
Enough spaces arrange that sufficiently long straight length carries out rectification, and too urgent system pipeline trend can make Working fluid flow state occur to deteriorate,
And then the vibration of equipment can be caused to aggravate, can so shorten its service life, or even the Stealth composition prestige to naval vessel for a long time
The side of body.The throttling action of valve can cause the mutation of fluid field pressure before and after valve, and the flow field after valve throttle is general very disorderly, pressure
The uniformity on the section of pipeline flow field such as power, axial velocity, speed angle is very poor, and the unsteady pulsation of outlet pressure is violent, so
The larger vibration noise and secondary noise of valve can also be caused.Valve long-term work can add in the more severe situation of throttle
The vibrational state of acute valve, its service life can also be affected.
Utility model content
In view of the shortcomings of the prior art, this utility model provides a kind of even flow field dress of employing big and small blade design
Put, the device breaks original vortex structures by blade cuts, large scale eddy is isolated as microvortex；If large scale eddy is lucky
In big blade path, then whirlpool cutting can be carried out by the vanelets in downstream, be finally reached the purpose of uniform flow field；The dress
Putting can be in the case where inlet flow field deteriorates, and to carry out rectification uniform for stream field in the limited length.
The purpose of this utility model is achieved through the following technical solutions.
A kind of even flow field device of employing big and small blade design, the even flow field device include sleeve pipe, big blade, little
Blade and internal lining pipe；
Internal lining pipe is attached by big blade and vanelets between internal lining pipe and sleeve pipe in the inside of sleeve pipe, sleeve pipe
Two ends are fixedly connected with exterior line respectively；The blade root of big blade is fixedly connected with internal lining pipe, and blade tip is fixedly connected with sleeve pipe, greatly
Blade is located at the entrance point of fluid and arranged evenly in the circumference of internal lining pipe；The blade root of vanelets is fixedly connected with internal lining pipe,
Blade tip is fixedly connected with sleeve pipe, and vanelets are located at the port of export of fluid and arranged evenly in the circumference of internal lining pipe.
Length L of the internal lining pipe is not less than 2 with the ratio of diameter D.
It is big to be attached using welding or integrally casting shaping technology between blade and vanelets and sleeve pipe and internal lining pipe；
Using during welding, needs carry out grinding process to the position after welding.
The cross sectional shape of the big blade adopts identical blade profile or different blade profiles from the cross sectional shape of vanelets；Leaf
The folded rule of the footpath vector product of type is not restricted to straight line, can be straight line can also be curve.
Preferably, the mode arranged evenly of big blade and vanelets in internal lining pipe circumference is the spiral shell in the circumference of internal lining pipe
Rotating distribution is distributed on the circumferential sustained height of internal lining pipe；Big blade and vanelets in the circumference of internal lining pipe using etc.
Spacing is distributed or non-equidistance distribution, and big angle of the blade with vanelets in internal lining pipe circumference is not zero.
In addition, big blade and spacing distance of the vanelets on internal lining pipe axial direction, the row of big blade, the row of vanelets
It is adjusted according to different entering stream mode and flow index request.
Beneficial effect：
(1) even flow field device described in the utility model is using blade shunting vortex system cutting design.Fluid is from turning half
The less elbow in footpath flows out or after valve throttle, very uneven in the Flow Field Distribution of pipeline section, on pipeline section
VELOCITY DISTRIBUTION has larger gradient and curl, can produce larger vortex system in elbow or valve rear portion.By rational blade point
Cloth and blade design, can make vortex system carry out cutting in front and back on multiple blade rowses, break up, allow the whirlpool of large scale to become little yardstick
Whirlpool.
(2) even flow field device described in the utility model adopts internal lining pipe column rectification design.Near runner centre bit
The fluid put is flow through from internal lining pipe, is compared by the rectified action of the relatively long cylinder runner of internal lining pipe, especially draw ratio L/D
In the case of big, the flowing radially of convection cell has good restriction effect, and long and narrow runner is easy to Formation cross-section uniform
Flow field, enhances the center rectification effect of current equalizer.
(3) even flow field apparatus structure described in the utility model is compact, and installing space demand is little；Be suitably mounted to into
The poor pumping hole entrance point of stream mode and valve downstream, for improving speed, the pressure uniformity in flow field；Material is metal,
Can seawater corrosion resistance, environmental suitability is strong.
Description of the drawings
Fig. 1 is the isometry sectional view of the even flow field device described in embodiment.
Sectional views of the Fig. 2 for big blade in the even flow field device described in embodiment.
Sectional views of the Fig. 3 for vanelets in the even flow field device described in embodiment.
Fig. 4 is the even flow field device described in embodiment along inside pipe casing expanded view.
Wherein, 1- sleeve pipes, 2- vanelets, the big blades of 3-, 4- internal lining pipes.
Specific embodiment
With reference to the accompanying drawings and detailed description this utility model is described further.
A kind of even flow field device of employing big and small blade design, the even flow field device include sleeve pipe 1, big blade 3,
Vanelets 2 and internal lining pipe 4, as shown in Figure 1；
The cross sectional shape of the cross sectional shape of vanelets 2 and big blade 3 adopts NACA equal thickness blade profiles；Sleeve pipe 1, big blade
3rd, the material of vanelets 2 and internal lining pipe 4 is rustless steel；
Internal lining pipe 4 between the inside of sleeve pipe 1, internal lining pipe 4 and sleeve pipe 1 passes through big blade 3 and vanelets 2 are attached,
The two ends of sleeve pipe 1 are fixedly connected with exterior line respectively by flange；The blade root of big blade 3 is welded with the outer surface of internal lining pipe 4,
Blade tip is welded with the inner surface of sleeve pipe 1, and six big blades 3 are located at the entrance point and the sustained height in 4 circumference of internal lining pipe of fluid
It is upper equidistantly arranged evenly；The blade root of vanelets 2 is welded with the outer surface of internal lining pipe 4, and blade tip is welded with the inner surface of sleeve pipe 1,
Six vanelets 2 are located at the port of export of fluid and equidistantly arranged evenly on the sustained height of 4 circumference of internal lining pipe, and great Ye
Equidistantly it is alternately arranged between piece 3 and vanelets 2, as shown in Figure 2, Figure 3, Figure 4；After the completion of welding, welding position is carried out
Grinding process, it is ensured that the precision of the blade profile of blade and blade surface.
Operation principle：Fluid is flowed out or after valve throttle from the less elbow of radius of turn, can be in elbow or valve
Rear portion produces larger vortex system, and the whirlpool of large scale is isolated as microvortex by the big blade 3 at fluid inlet end；If large scale
Then isolated by the vanelets 2 of fluid outlet just in 3 passage of big blade in whirlpool；Near runner center
Fluid is flow through from internal lining pipe 4, and by the rectified action of the relatively long cylinder runner of internal lining pipe 4, convection cell flowing radially has very
Good restriction effect, long and narrow runner are easy to the uniform flow field of Formation cross-section, enhance the center rectification effect of current equalizer
Really, so as to reaching the purpose of uniform flow field.
When carrying out rectification using the even flow field device described in the present embodiment, according to the design parameter of fluid in exterior line
And index request is flowed, adjust blade profile, product folded rule, circumferentially distributed arrangement mode and the axial direction of big blade 3 and vanelets 2
Row.
In sum, preferred embodiment of the present utility model is these are only, is not intended to limit of the present utility model
Protection domain.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc. all should be wrapped
It is contained within protection domain of the present utility model.
Claims (6)
1. the even flow field device that a kind of employing big and small blade is designed, it is characterised in that：The even flow field device includes sleeve pipe
(1), big blade (3), vanelets (2) and internal lining pipe (4)；
Internal lining pipe (4) between the inside of sleeve pipe (1), internal lining pipe (4) and sleeve pipe (1) passes through big blade (3) and vanelets (2) enter
Row connection, the two ends of sleeve pipe (1) are fixedly connected with exterior line respectively；The blade root of big blade (3) is fixed with internal lining pipe (4) to be connected
Connect, blade tip is fixedly connected with sleeve pipe (1), big blade (3) are located at the entrance point of fluid and the distribution row in the circumference of internal lining pipe (4)
Row；The blade root of vanelets (2) is fixedly connected with internal lining pipe (4), and blade tip is fixedly connected with sleeve pipe (1), and vanelets (2) are located at fluid
The port of export and arranged evenly in the circumference of internal lining pipe (4).
2. the even flow field device that a kind of employing big and small blade according to claim 1 is designed, it is characterised in that：In described
Length L of bushing pipe (4) is not less than 2 with the ratio of diameter D.
3. the even flow field device that a kind of employing big and small blade according to claim 1 is designed, it is characterised in that：Big blade
(3) connected using welding or integrally casting shaping technology and vanelets (2) and sleeve pipe (1) and internal lining pipe (4) between
Connect；Using during welding, needs carry out grinding process to the position after welding.
4. the even flow field device that a kind of employing big and small blade according to claim 1 is designed, it is characterised in that：Big blade
(3) cross sectional shape adopts identical blade profile or different blade profiles from the cross sectional shape of vanelets (2).
5. the even flow field device that a kind of employing big and small blade according to claim 4 is designed, it is characterised in that：The leaf
The folded rule of the footpath vector product of type is straight line or curve.
6. the even flow field device that a kind of employing big and small blade according to claim 1 is designed, it is characterised in that：Big blade
And arranged evenly mode of the vanelets (2) in internal lining pipe (4) circumference is spirally to be distributed in the circumference of internal lining pipe (4) (3)
Or be distributed on the circumferential sustained height of internal lining pipe (4)；Big blade (3) and vanelets (2) are adopted in the circumference of internal lining pipe (4)
It is distributed with equidistantly distributed or non-equidistance, and big angle of the blade (3) with vanelets (3) in internal lining pipe (4) circumference is not
Zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620841596.2U CN206036498U (en) | 2016-08-05 | 2016-08-05 | Adopt uniform flow distribution device of big or small blade design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620841596.2U CN206036498U (en) | 2016-08-05 | 2016-08-05 | Adopt uniform flow distribution device of big or small blade design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206036498U true CN206036498U (en) | 2017-03-22 |
Family
ID=58308145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620841596.2U Withdrawn - After Issue CN206036498U (en) | 2016-08-05 | 2016-08-05 | Adopt uniform flow distribution device of big or small blade design |
Country Status (1)
| Country | Link |
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| CN (1) | CN206036498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090520A (en) * | 2016-08-05 | 2016-11-09 | 中国船舶重工集团公司第七〇九研究所 | A kind of even flow field device using big and small blade to design |
-
2016
- 2016-08-05 CN CN201620841596.2U patent/CN206036498U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090520A (en) * | 2016-08-05 | 2016-11-09 | 中国船舶重工集团公司第七〇九研究所 | A kind of even flow field device using big and small blade to design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170322 Effective date of abandoning: 20190719 |
|
| AV01 | Patent right actively abandoned |