CN200975607Y - Blade flutter generator - Google Patents
Blade flutter generator Download PDFInfo
- Publication number
- CN200975607Y CN200975607Y CN 200620105288 CN200620105288U CN200975607Y CN 200975607 Y CN200975607 Y CN 200975607Y CN 200620105288 CN200620105288 CN 200620105288 CN 200620105288 U CN200620105288 U CN 200620105288U CN 200975607 Y CN200975607 Y CN 200975607Y
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- China
- Prior art keywords
- blade
- valve casing
- moving vane
- bevel gear
- stator blade
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Abstract
The utility model relates to a leaf pulse generator, which comprises a valve shell, a fluid channel, a valve shell and an installation surface; wherein the fluid channel is a direct access; the installation surface is positioned in sides of the valve shell; a pair of bevel gears are positioned in the valve shell; static blades and corresponding rotor blades are positioned in the valve shell; the static blades and the rotor blades have through holes; the through holes in the static blade and the rotor blades are coaxially arranged. The static blades and the rotor blades are vertically positioned in the fluid channel. The pair of bevel gears comprises a plane bevel gear and a vertical bevel gear; wherein rotor of the vertical bevel gear penetrates through centre of the static blades first and then is solidly connected to the rotor blades centre; while the rotor of the plane bevel gear penetrates through the valve shell first and then is connected to an external speed adjusting motor. The utility model with a leaf pulse generator is simple in structure, easy in processing, little in energy loss and pulsating frequency directly tunable.
Description
(1) technical field
The utility model relates to a kind of blade pulsation generator.
(2) background technique
Blade pulsation generator is mainly used in the pipeline of pulsed flow augmentation of heat transfer, mass transfer and some chemical reaction, for these processes provide pulsed flow.
Pulsed flow is meant special parameters such as speed, pressure or flow owing to be subjected to dynamic excitation and the fluid of generating period variation.This fluid is much in the actual and daily life in engineering, all is pulsed flow as the mankind's arterial blood and respiratory air flow.This fluid and common steady-flow fluid flow and heat and mass aspect have differently significantly, it can flow and the heat and mass effect by very effective strengthening fluid.Experimental results show that in the at present existing document that this hydroenhancement heat transfer reaches as high as more than 20 times, and mass transfer effect is better, can become the raising mass transfer effect of several magnitude.And the exemplary applications of corresponding pulsed flow (or oscillatory flow) heat and mass transfer enhancement and chemical reaction is too numerous to enumerate, as the separation of heat exchanger, Dry run, electronics cooling, Aero-Space, biomedicine, ocean engineering, spreading type chemical reaction, mixed gas etc.
Can realize that the device of impulse excitation is called as flutter generator for the engineering strengthening process provides pulsating fluid or convection cell, this is the prerequisite that realizes the pulsed flow invigoration effect.That is to say, the fluid that various pulsed flow strengthening processes must exist pulsed to flow, and the realization of this process is finished by flutter generator.
The position that flutter generator is mounted is normally between fluid source (device of fluid is provided) and the effect equipment (position of fluid generation heat and mass), flutter generator is realized the frequency-adjustable pulsation by being connected with speed-adjustable motor, front end is connected with fluid source, and the rear end is connected with active section.
The relevant patent both at home and abroad that has retrieved at present mainly contains two: apparatus and method (application number 99804701.5) and " Mechanically-driven pulsating flow valve for heat andmass transfer enhancement " (Patent Number:6053203) that pulsating fluid is provided.More than two patents come from State Intellectual Property Office and U. S. Patent net respectively, the two claimant is respectively New Mexico The Regents of the University of California and American David J.Sailor ﹠amp; Daniel J.Rohli.The Chinese patent 99804701.5 disclosed apparatus and method that pulsating fluid is provided, application background is more single-minded, is mainly used in the optical resist material that removing is used when making intergrated circuit or other electronic parts and components (as circuit board, optical waveguide and flat panel display).Generate the pump that replaces with high-voltage pulse and low pressure pulsation form that is equipped for of pulsed flow in this patent, and there is no any specific descriptions in this patent about this kind pump.
U. S. Patent 6053203, disclose a kind of Mechanical Driven flutter valve: mainly comprise inlet (jet inlet), outlet (jet outlet), valve casing (cap), driving rotating shaft (driven shaft), several parts compositions of gas channel (machinedpassage), its structural drawing as shown in Figure 2.Provide the steady-flow fluid by fluid source, enter this flutter generator from inlet, by driven by motor gas channel and import and export connected sum are closed owing to drive rotating shaft, so also just realized impulse excitation to original fluid, make the variation of physical parameter generating periods such as its flow, pressure, speed, thereby had the characteristic of pulsed flow.
This flutter valve complex structure, processing difficulties, because there is bending the fluid passage, energy loss is big.The general unit of speed-adjustable motor or motor is rpm (r/min), and the unit of fluid pulsation frequency adopts hertz (Hz) usually, be to realize the how many times pulsation each second, like this to having caused certain trouble between input speed and the output frequency, need convert by relation and realize importing the unification of front and back frequency numerical value, be unfavorable for research and produce complex operation.
(3) summary of the invention
Complex structure in the prior art, processing difficulties, energy loss are big in order to overcome, the relation need between the rotating speed of ripple frequency and excitation mechanism be realized by converting, the deficiency of complex operation, the utility model provide a kind of simple in structure, easy to process, energy loss is little, ripple frequency can directly be regulated blade pulsation generator.
The technical solution of the utility model is:
A kind of blade pulsation generator, comprise valve casing, run through the fluid passage of valve casing and be positioned at the installation end face of valve casing both sides, also comprise a pair of cone gear that is installed in the valve casing, be fixedly mounted on the stator blade on the valve casing, the moving vane that cooperates with stator blade, have through hole on described stator blade and the moving vane, through hole on the stator blade and the coaxial installation of the through hole on the moving vane, described fluid passage is a straight passage, stator blade and moving vane are vertically mounted in the fluid passage, described a pair of cone gear is affixed horizontal circle bevel gear and vertical cone gear, it is affixed that vertically the rotatingshaft of cone gear passes center and the moving vane center of stator blade, and the rotatingshaft of horizontal circle bevel gear passes the external speed-adjustable motor of valve casing connection.
Described a pair of cone gear is provided with the cone gear dust-proof cover outward.
Bevel Gear Drive is 60 than the product with pulsation blade through hole number, and described stator blade is similar or identical with the shape of through holes on the moving vane.
Described valve casing directly is fixed between two flanges of pipeline by bolt.
Described valve casing both ends of the surface are flange, are mounted in the pipeline by flange.
The working principle of the utility model blade pulsation generator is: stator blade is fixed on the generator valve casing, moving vane then is to transmit rotary action by the rotating shaft of horizontal circle bevel gear through the awl tooth by speed-adjustable motor, rotating shaft periodic rotary around vertical cone gear makes the opening and closing of through hole property performance period on stator blade and the moving vane.Flowing medium flow to outlet from the inlet of flutter generator passage, runs into the channel design that periodically opens and closes, thereby has realized the impulse excitation to this flow working medium, has also just produced the pulsed flow with cyclically-varying characteristic.
By the combination of blade perforate number and gear ratio, realize that input speed equates with the numerical value of output fluid ripple frequency.For example, the speed-adjustable motor input speed is 50r/min, after 1: 10 gear ratio, rotating speed becomes 500r/min, and because of pulsation blade through hole number is 6, promptly the moving vane revolution moves a week again, and open and close 6 times between the quiet moving vane, system realizes 6 impulse excitations to the fluid by valve body, and respective frequencies is 3000 times/minute like this, and being scaled standard unit is 50Hz.This frequency numerical value is identical with the numerical value of speed-adjustable motor rotating speed, has changed with regard to not needing to carry out owing to rotating speed unit the dependency relation that and gear ratio different with ripple frequency unit, perforate number bring in engineering is used.The combination of above-mentioned example middle gear velocity ratio and perforate number also comprises other schemes of the actual permission of Other Engineering except that described in the example, as velocity ratio is 20, and the perforate number is 3 and between speed-adjustable motor and blade pulsation generator rotation input rotating shaft arrangements for speed regulation etc. is set.
The beneficial effect of blade pulsation generator described in the utility model mainly shows: 1, simple in structure, easy to process, can guarantee that rotation is reliable and stable with transmission between the rotating shaft, than the easier realization impulse excitation of other flutter generators; 2, fluid passage straight line, energy loss is little; 3, by boring the acting in conjunction of tooth velocity ratio and blade hole count, realized connect speed-adjustable motor speed revolution value equal the numerical value of fluid pulsation frequency, rotating speed and frequency numerical quantities are unified, need not to convert, owing to used speed-adjustable motor, also just realized the adjustability of flow working medium ripple frequency simultaneously; 4, can adopt " clipping " to install, also can adopt " flange-type " mounting structure, especially " clipping " install can not cause since the standard-sized restriction of flange and only for the supporting use of a certain pipeline, strengthened versatility.
(4) description of drawings
Fig. 1 is a blade pulsation generator workflow schematic representation.
Fig. 2 is the structural representation of existing blade pulsation generator.
Fig. 3 is the structural representation of the utility model blade pulsation generator.
Fig. 4 is the utility model embodiment one a pipeline installation diagram.
Fig. 5 is the utility model embodiment one a stator blade structural representation.
Fig. 6 is the utility model embodiment one a moving vane structural representation.
(5) embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Embodiment one
Referring to accompanying drawing: a kind of blade pulsation generator, comprise valve casing, run through the fluid passage of valve casing and be positioned at the installation end face of valve casing both sides, also comprise a pair of cone gear that is installed in the valve casing, be fixedly mounted on the stator blade 3 on the valve casing, the moving vane 4 that cooperates with stator blade, have the through hole of 6 same number on described stator blade and the moving vane, through hole on the stator blade and the coaxial installation of the through hole on the moving vane, described fluid passage is a straight passage, stator blade and moving vane vertically are installed in the outlet port front end of fluid passage, described a pair of cone gear is affixed horizontal circle bevel gear 1 and vertical cone gear 2, it is affixed that vertically the rotatingshaft 5 of cone gear passes center and the moving vane center of stator blade, and the rotatingshaft 6 of horizontal circle bevel gear passes the external speed-adjustable motor of valve casing connection.
Described a pair of cone gear is provided with the cone gear dust-proof cover outward.
Described valve casing directly is fixed between two flanges of pipeline by bolt.
Embodiment two
Described valve casing both sides are flange, are mounted in the pipeline by flange.
All the other structures of present embodiment are identical with embodiment one with implementation.
Claims (6)
1, a kind of blade pulsation generator, comprise valve casing, run through the fluid passage of valve casing and be positioned at the installation end face of valve casing both sides, it is characterized in that: also comprise a pair of cone gear that is installed in the valve casing, be fixedly mounted on the stator blade on the valve casing, the moving vane that cooperates with stator blade, have through hole on described stator blade and the moving vane, through hole on the stator blade and the coaxial installation of the through hole on the moving vane, described fluid passage is a straight passage, stator blade and moving vane are vertically mounted in the fluid passage, described a pair of cone gear is affixed horizontal circle bevel gear and vertical cone gear, it is affixed that vertically the rotatingshaft of cone gear passes center and the moving vane center of stator blade, and the rotatingshaft of horizontal circle bevel gear passes the external speed-adjustable motor of valve casing connection.
2, blade pulsation generator as claimed in claim 1 is characterized in that: described a pair of cone gear is provided with the cone gear dust-proof cover outward.
3, blade pulsation generator as claimed in claim 1 is characterized in that: Bevel Gear Drive is 60 than the product with pulsation blade through hole number, and described stator blade is similar or identical with the shape of through holes on the moving vane.
4, blade pulsation generator as claimed in claim 2 is characterized in that: Bevel Gear Drive is 60 than the product with pulsation blade through hole number, and described stator blade is similar or identical with the shape of through holes on the moving vane.
5, as the described blade pulsation generator of one of claim 1-4, it is characterized in that: described valve casing directly is fixed between two flanges of pipeline by bolt.
6, as the described blade pulsation generator of one of claim 1-4, it is characterized in that: described valve casing both ends of the surface are flange, are mounted in the pipeline by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105288 CN200975607Y (en) | 2006-07-03 | 2006-07-03 | Blade flutter generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105288 CN200975607Y (en) | 2006-07-03 | 2006-07-03 | Blade flutter generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975607Y true CN200975607Y (en) | 2007-11-14 |
Family
ID=38901892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620105288 Expired - Lifetime CN200975607Y (en) | 2006-07-03 | 2006-07-03 | Blade flutter generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975607Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435976C (en) * | 2006-07-03 | 2008-11-26 | 浙江工业大学 | Blade pulsation generator |
| CN102644609A (en) * | 2012-05-08 | 2012-08-22 | 北京航空航天大学 | Rotor/controlled stator motion mechanism capable of improving performance of axial-flow compressor |
| CN105065715A (en) * | 2015-08-27 | 2015-11-18 | 西安交通大学 | High-frequency wide-spectrum pulse airflow modulation valve |
| CN110285973A (en) * | 2019-06-04 | 2019-09-27 | 北京理工大学 | A kind of inlet duct generating high response wide spectrum pulse pneumatic |
| CN113173240A (en) * | 2021-05-06 | 2021-07-27 | 江苏科技大学 | Ship central cooling water energy-saving system |
-
2006
- 2006-07-03 CN CN 200620105288 patent/CN200975607Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435976C (en) * | 2006-07-03 | 2008-11-26 | 浙江工业大学 | Blade pulsation generator |
| CN102644609A (en) * | 2012-05-08 | 2012-08-22 | 北京航空航天大学 | Rotor/controlled stator motion mechanism capable of improving performance of axial-flow compressor |
| CN105065715A (en) * | 2015-08-27 | 2015-11-18 | 西安交通大学 | High-frequency wide-spectrum pulse airflow modulation valve |
| CN110285973A (en) * | 2019-06-04 | 2019-09-27 | 北京理工大学 | A kind of inlet duct generating high response wide spectrum pulse pneumatic |
| CN110285973B (en) * | 2019-06-04 | 2021-06-15 | 北京理工大学 | Air inlet device for generating high-response wide-frequency-spectrum pulsating airflow |
| CN113173240A (en) * | 2021-05-06 | 2021-07-27 | 江苏科技大学 | Ship central cooling water energy-saving system |
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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 |
Effective date of abandoning: 20060703 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |