CN101382150A - Synchronous rear flow fan - Google Patents
Synchronous rear flow fan Download PDFInfo
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- CN101382150A CN101382150A CN 200810140212 CN200810140212A CN101382150A CN 101382150 A CN101382150 A CN 101382150A CN 200810140212 CN200810140212 CN 200810140212 CN 200810140212 A CN200810140212 A CN 200810140212A CN 101382150 A CN101382150 A CN 101382150A
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Abstract
The invention discloses a synchronous back flow fan, which is provided with a fan casing, an airflow pressure expending passage arranged inside the casing, an impeller, a shaft sleeve of the impeller, a blade disk of the impeller, blades for the impeller, and an airflow passage inside the impeller formed between the blades of the impeller and the blade disk of the impeller. The synchronous back flow fan is characterized in that a synchronous flow guide supercharger is arranged in the airflow passage inside the impeller; the front end of the synchronous flow guide supercharger is provided with a synchronous flow guide supercharging inlet; the tail end at the rear part of the synchronous flow guide supercharger is provided with a synchronous flow guide supercharging outlet; the longitudinal edge of the synchronous flow guide supercharger is connected with the longitudinal side of the blades for the impeller; and the synchronous flow guide supercharger and the blades of the impeller form a synchronous forward flow inlet. Compared with the prior art, the synchronous back flow fan has the advantages of simple structure, small volume, low cost, resource conservation, good suction and supercharging effect, high efficiency, low noise and so on.
Description
Technical field
The present invention relates to a kind of synchronous rear flow fan, belong to the air purification compression technique area.
Background technique
Various centrifugal fans (the comprising centrifugal rear flow fan) complex structure of people's use now, bulky, use material many, involve great expense; flow is little, and pressurized effect is poor, and efficient is low; noise is big, causes the blower fan consumes resources how but can not save the energy significantly, is unfavorable for environmental protection again.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, and provide a kind of centrifugal fan that can make simple in structure, volume is little, and cost is low, saves resource, and the suction pressurized effect is good, efficient height, the synchronous rear flow fan that noise is low.
Purpose of the present invention can reach by following technical measures: synchronous rear flow fan, it has fan casing, sidewind diffusion passage in the casing, impeller, impeller sleeve, the leaf blade disk, impeller blade, impeller blade is with the inboard air-flow path of the impeller that forms between the leaf blade disk, characteristics are, be provided with synchronous water conservancy diversion pressurized machine in the inboard air-flow path of impeller, water conservancy diversion pressurized machine front end is provided with synchronous water conservancy diversion supercharging import synchronously, its rear end is provided with synchronous water conservancy diversion supercharging outlet, water conservancy diversion pressurized machine longitudinal edge connects with the vertical side of impeller blade synchronously, and the water conservancy diversion pressurized machine constitutes the synchronous concurrent intake grill with impeller blade synchronously.
In order further to realize purpose of the present invention, described synchronous water conservancy diversion pressurized machine is for entirely across formula, this synchronous water conservancy diversion pressurized machine radially then, is from outward appearance to inner essence tilted to place in the inboard air-flow path of impeller by preceding along impeller, and the vertical both sides of the edge of water conservancy diversion pressurized machine all connect with two vertical sides of impeller blade of the vertical both sides of the inboard air-flow path of impeller synchronously.
In order further to realize purpose of the present invention, described synchronous water conservancy diversion pressurized machine is for entirely across formula, this synchronous water conservancy diversion pressurized machine along impeller radially by preceding then, turn to by preceding and be placed in the inboard air-flow path of impeller along impeller, the vertical both sides of the edge of water conservancy diversion pressurized machine all connect with two vertical sides of impeller blade of the vertical both sides of the inboard air-flow path of impeller synchronously.
In order further to realize purpose of the present invention, described synchronous water conservancy diversion pressurized machine is for entirely across formula, this synchronous water conservancy diversion pressurized machine along impeller turn to preceding by the back, from outward appearance to inner essence tilt to place in the inboard air-flow path of impeller, the vertical both sides of the edge of water conservancy diversion pressurized machine all connect with two vertical sides of impeller blade of the vertical both sides of the inboard air-flow path of impeller synchronously.
In order further to realize purpose of the present invention, described synchronous water conservancy diversion pressurized machine is for entirely across formula, this synchronous water conservancy diversion pressurized machine turns to by preceding then, from outward appearance to inner essence to tilt to place in the inboard air-flow path of impeller along impeller, and the vertical both sides of the edge of water conservancy diversion pressurized machine all connect with two vertical sides of impeller blade of the vertical both sides of the inboard air-flow path of impeller synchronously.
In order further to realize purpose of the present invention, described synchronous water conservancy diversion pressurized machine is partly across formula, this synchronous water conservancy diversion pressurized machine is located at the inboard air-flow path of impeller front portion, its vertical forward edge connects with the vertical rear side surface of impeller blade of the inboard air-flow path of impeller front side, is provided with unobstructed air-flow path between the vertical posterior edges of water conservancy diversion pressurized machine another impeller blade front side with the inboard air-flow path rear side of impeller synchronously.
In order further to realize purpose of the present invention, described synchronous water conservancy diversion pressurized machine is partly across formula, this synchronous water conservancy diversion pressurized machine is located at the inboard air-flow path of impeller rear portion, its vertical posterior edges connects with the vertical front side surface of impeller blade of the inboard air-flow path rear side of impeller, is provided with unobstructed air-flow path between the vertical forward edge of water conservancy diversion pressurized machine another impeller blade rear side with the inboard air-flow path of impeller front side synchronously.
In order further to realize purpose of the present invention, the front and rear of an inboard air-flow path of impeller is provided with half respectively across the synchronous water conservancy diversion pressurized machine of formula, this front portion half is not connected across the synchronous water conservancy diversion pressurized machine of formula with its corresponding rear portion half across the synchronous water conservancy diversion pressurized machine of formula, unobstructed air-flow path in the middle of being provided with between them.
In order further to realize purpose of the present invention, described impeller blade axial edge is not connected with its corresponding leaf blade disk, and this impeller blade axial edge is provided with axial no blade to enlarge pressure passage with between its corresponding leaf blade disk.
In order further to realize purpose of the present invention, be provided with the separation fluid director in the sidewind diffusion passage in the described fan casing, separate fluid director and be located at the impeller outlet periphery, turn to along impeller, separate the fluid director import by its front end and separate the fluid director outlet gradually away from the impeller cylindrical, separate the fluid director longitudinal edge and connect with the casing axial side wall to its rear end near the outlet of impeller cylindrical.
The key technology of synchronous rear flow fan is exactly in the inboard air-flow path of impeller synchronous water conservancy diversion pressurized machine to be set.The major function of water conservancy diversion pressurized machine is synchronously, from impeller shaft intake-gas material laterally, the gaseous matter that water conservancy diversion the is sucked inboard air-flow path of impeller of flowing through prevents to produce eddy airstream in the inboard air-flow path of impeller, transmit energy for diversed gaseous matter, make it to quicken pressurization.
Synchronous rear flow fan designs at the shortcoming of existing various old-fashioned centrifugal blowers and rear flow fan.
General old-fashioned centrifugal blower fan blade wheel and rear flow fan impeller must be provided with the leaf blade disk and (or establish single impeller leaf dish, or establish the double leaf blade disk), though the centrifugal blower fan blade wheel that has is not established leaf blade disk (or the two-sided leaf blade disk of not establishing, or only one side is established single leaf dish), but this impeller is not established the axial sides of leaf dish must be near fan casing axial sides (impeller or the body side of the sensing of impeller medial axis are called axial sides), various centrifugal blower fan blade wheels are radially anterior, and (it is radially anterior to be called impeller near the impeller central position, be called radially rear portion of impeller away from the impeller central position, before near position, impeller center is, position far away is the back from the impeller center) neutral position must be provided with the special impeller intake grill, relies on intermediate dedicated impeller intake grill air intake.Though centrifugal rear flow fan can not established special impeller leaf dish, it must be provided with impeller blade negative pressure partitioning wall, and impeller blade negative pressure partitioning wall is equivalent to the effect of leaf blade disk.Though centrifugal rear flow fan yet can radially not established the special impeller intake grill and be only depended on impeller negative pressure gap suction external substance in the anteriomedial position at impeller, but this negative pressure gap only is the part position between two impeller blade thrust walls, just the impeller axial sides has only segment space position suction processing external substance, add and have the rotation barrier effect of negative pressure partitioning wall, like this, both strengthened the frictional loss of draught fan impeller, and caused the most of laterally gas of impeller shaft again because of stopping that can not enter impeller is processed.Synchronous rear flow fan impeller axial sides, owing to be provided with synchronous water conservancy diversion pressurized machine, and by the synchronous concurrent intake grill that synchronous water conservancy diversion pressurized machine and impeller blade constitute, directly by centrifugal action, almost can make the whole axial sides of impeller can both externally aspirate material and give processing.
General old-fashioned centrifugal blower fan blade wheel must be provided with the special impeller intake grill in the middle of impeller, during work, air-flow radially directly passes through the into inboard air-flow path of impeller (the inboard air-flow path of the impeller that forms between two impeller blades is radially expanded) from the special impeller intake grill, certainly will produce eddy current, cause eddy current loss; Though centrifugal rear flow fan impeller can not established the special impeller intake grill in the middle of impeller, during work, by impeller negative pressure gap intake-gas material, the portion gas material of suction enters the inboard air-flow path of impeller from impeller negative pressure gap also be directly to pass through formula, also must form eddy current, cause eddy current loss.In the inboard air-flow path of impeller, synchronous water conservancy diversion pressurized machine is set, gives water conservancy diversion always, just can avoid producing eddy current, avoid causing eddy current loss directly pass through into the air-flow of the inboard air-flow path of impeller by special impeller intake grill and negative pressure gap.
If not only establish the special impeller intake grill but also establish impeller negative pressure gap on the centrifugal rear flow fan impeller, during work, radially enter radial air flow in the inboard air-flow path of impeller from the special impeller intake grill, following axial flow that impeller negative pressure gap enters the inboard air-flow path of impeller vertically hands over and collides, will inevitably produce fiercer eddy current, cause bigger eddy current loss.And synchronous water conservancy diversion pressurized machine is set, and give to isolate and water conservancy diversion by synchronous water conservancy diversion pressurized machine, just can avoid this two strands of radial-axial air-flows intersection contact-impacts, thereby just can avoid causing bigger eddy current loss.
The water conservancy diversion pressurized machine places in the inboard air-flow path of impeller synchronously, and the air-flow in the inboard air-flow path of impeller is given water conservancy diversion from start to finish, and nature can transmit energy to air-flow in the water conservancy diversion process.This vertical side of synchronous water conservancy diversion pressurized machine is big more to laterally inclined angle with impeller shaft, and they are just many more to the air-flow energy delivered.Need to tilt much angles, decide according to actual needs.
Synchronous water conservancy diversion pressurized machine on the synchronous rear flow fan impeller can directly utilize the inboard action of centrifugal force of impeller from impeller axial sides intake-gas material everywhere, and the gaseous matter of suction is directly imported in the inboard air-flow path of impeller, derive impeller outlet again.In the water conservancy diversion process, can directly transmit energy and make gas quicken supercharging again simultaneously gaseous matter.
The pneumatic characteristics of synchronous rear flow fan impeller are that gas is sucked everywhere by impeller one axial sides or two axial sides and imports and flow in the inboard air-flow path of impeller, are again in axial direction to be discharged from impeller from impeller radial extremity impeller outlet at last; Practical application generally all is to adopt by impeller shaft to front side shaft to inspiration gas, is again in axial direction to discharge gas from the axial rear side of impeller outlet at last.According to so pneumatic characteristics and use needs, this impeller is named as the synchronous rear flow fan impeller just, and the blower fan that is assembled by this impeller is named as synchronous rear flow fan.
The synchronous rear flow fan impeller is the same with general rear flow fan impeller, all be from impeller axial sides suction external substance, in suction external substance process, on the one hand the air-flow that is sucked into the inboard air-flow path of impeller is transmitted energy, by this air-flow impeller shaft air-flow is laterally transmitted energy (because interior sidewind of impeller and impeller outer sidewind are connected as a single entity) again on the one hand, the gas of being processed by blower fan needn't all drive its running by impeller blade, thereby it can save the energy equally, just because the effect of synchronous water conservancy diversion pressurized machine is arranged, its efficient is higher.
Radially by then preceding, axial expansion is widened gradually along impeller in the axial one or both sides of impeller blade that constitute the inboard air-flow path of this impeller, can be straight and gradually expansion widen, even axial shrinkage narrows down gradually.The leaf blade disk that constitutes the inboard air-flow path of this impeller can be the taper tubular, can be the flat disk shape.This leaf blade disk diameter is changeable, and the impeller blade that constitutes this impeller both sides air-flow path can be straight tabular, can be that arc is tabular, can be airfoil or the like, its outlet can be a forward direction, can be the back to, also can be radially.The impeller blade axial edge that constitutes the inboard air-flow path of this impeller can be connected entirely with its corresponding leaf blade disk, also can not be connected to each other entirely, and the axial side margin of impeller blade can interconnect with its corresponding leaf blade disk by partial portion.The axial side margin of impeller blade is not connected entirely with its corresponding leaf blade disk or partial portion is not connected, and then the axial side margin of this impeller blade is with constituting the impeller inner shafts between its corresponding leaf blade disk to no blade to enlarge pressure passage.This impeller inner shafts can be given the air-flow of impeller blade processing fully low deceleration diffusion whenever and wherever possible to no blade to enlarge pressure passage, then this air-flow is tilted to arrange in impeller shaft to the side outside along the impeller radial-axial.Since this air-flow the impeller inner shafts in no blade to enlarge pressure passage by the diffusion that fully slows down, its impeller outlet pressure can be quite big.
The leaf blade disk outside diameter that constitutes the inboard air-flow path of this impeller can be equal with the impeller blade outside diameter, also can be less than the impeller blade outside diameter.
Synchronous rear flow fan impeller of the present invention, if adopt many walls blade, the blade axial sides is provided with the negative pressure partitioning wall, and (the negative pressure partitioning wall is equivalent to the effect of leaf blade disk, leaf dish of the present invention also refers to the negative pressure partitioning wall sometimes), the inboard air-flow path of the impeller of this structural type is that the negative pressure partitioning wall by impeller blade thrust wall and impeller blade axial sides constitutes.If the axial one or both sides of the inboard air-flow path of the impeller of this structural type along impeller radially by preceding then gradually axial expansion widen, then the axial one or both sides of impeller blade thrust wall of this structural type along impeller radially by preceding then gradually axial expansion widen.
Radially then the effect merchandiser wall impeller blade that produced of the inboard air-flow path of impeller widened of axial expansion is the same with the effect that impeller inboard air-flow path that the leaf blade disk constitutes is produced gradually by preceding along impeller in the axial one or both sides that many walls impeller blade constitutes.Because impeller need not be established special-purpose leaf blade disk, impeller weight is lighter, material saving more, and mechanical efficiency can be higher.
In order to narrate conveniently, clarity is accurate, explains several vocabularies of terms earlier at this:
1, inboard air-flow path---the formed air-flow path between impeller blade and leaf blade disk, impeller blade thrust wall and the negative pressure partitioning wall of impeller.
2, inboard air-flow path the place ahead of impeller and rear, before the inboard air-flow path of impeller and after, the inboard air-flow path front and rear of impeller---turn to along impeller, the inboard air-flow path of impeller forward impeller to turn to a side be rear side, to turn to a side be the front side to impeller dorsad; From the inboard air-flow path of impeller front side near be before, far from the inboard air-flow path of impeller front side be back (comparing) at any 2; Near position, the inboard air-flow path front side of impeller is the inboard air-flow path of impeller front portion, is the inboard air-flow path of impeller rear portion near the inboard air-flow path rear side of impeller position.
3, synchronously position directions such as water conservancy diversion pressurized machine the place ahead and rear, preceding and back, anterior and rear portion are censured and are followed the direction denotion of air-flow path position, impeller inboard the same.
4, impeller blade front side and rear side---turn to along impeller, impeller blade forward impeller to turn to a side be the front side, to turn to a side be rear side to impeller dorsad.
5, the inboard air-flow path of impeller blade, impeller, synchronously the water conservancy diversion pressurized machine vertically with laterally---radially being called vertically of they,, they turn to laterally with impeller.
6, leaf dish of the present invention comprises the negative pressure partitioning wall of many walls blade.
The water conservancy diversion pressurized machine is located at the inboard air-flow path of impeller and is meant that synchronous water conservancy diversion pressurized machine is across the air-flow path between the impeller blade (impeller blade is meant general centrifugal blower fan blade wheel blade and centrifugal rear flow fan impeller blade thrust wall) synchronously.This across can be entirely across, also can be half across.Across being meant that synchronous water conservancy diversion pressurized machine is across two air-flow paths between the impeller blade, the vertical both sides of the edge of water conservancy diversion pressurized machine all connect with two vertical sides of impeller blade between the inboard air-flow path of impeller synchronously entirely.Half across being meant that synchronous water conservancy diversion pressurized machine is narrower across the synchronous water conservancy diversion pressurized machine of formula than complete, and its vertical side margin connects with a vertical side of an impeller blade in the inboard air-flow path of impeller.
Synchronously the water conservancy diversion pressurized machine is entirely across the four kinds of structural types that comprise of the inboard air-flow path of impeller:
1, the water conservancy diversion pressurized machine radially then, is from outward appearance to inner essence tilted to place in the inboard air-flow path of impeller by preceding along impeller synchronously, and its vertical both sides of the edge all connect with two vertical sides of impeller blade between the inboard air-flow path of impeller.This synchronous water conservancy diversion pressurized machine is called entirely across the synchronous water conservancy diversion pressurized machine of radial skew formula.Can only establish one or establish several so synchronous water conservancy diversion pressurized machines more than two along impeller footpath following current forwards, backwards in the inboard air-flow path of impeller.
2, synchronously the water conservancy diversion pressurized machine along impeller radially by preceding then, turn to by preceding and be placed in the inboard air-flow path of impeller along impeller, its vertical both sides of the edge all connect with two vertical sides of impeller blade between the inboard air-flow path of the impeller both sides.This synchronous water conservancy diversion pressurized machine is called entirely across the synchronous water conservancy diversion pressurized machine of full-place.Can only establish one or establish several so synchronous water conservancy diversion pressurized machines more than two along impeller footpath following current forwards, backwards in the inboard air-flow path of impeller.
3, the water conservancy diversion pressurized machine turns to by preceding then, from outward appearance to inner essence to tilt to place in the inboard air-flow path of impeller along impeller synchronously, and its vertical both sides of the edge all connect with two vertical sides of impeller blade of the inboard air-flow path of impeller both sides.This synchronous water conservancy diversion pressurized machine is called entirely across the synchronous water conservancy diversion pressurized machine of anteversion and retroversion inclined.Can only establish one or establish several so synchronous water conservancy diversion pressurized machines more than two along impeller footpath following current forwards, backwards in the inboard air-flow path of impeller.
4, synchronously the water conservancy diversion pressurized machine along impeller turn to preceding by the back, from outward appearance to inner essence tilt to place in the inboard air-flow path of impeller, its vertical both sides of the edge all connect with two vertical bi-side of impeller blade of the vertical both sides of the inboard air-flow path of impeller.This synchronous water conservancy diversion pressurized machine be called entirely across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward.Can only establish one or establish several so synchronous water conservancy diversion pressurized machines more than two along impeller footpath following current forwards, backwards in the inboard air-flow path of impeller.
The water conservancy diversion pressurized machine partly is across the 12 kinds of different structural types that comprise of the inboard air-flow path of impeller synchronously:
1, synchronously the water conservancy diversion pressurized machine radially then, from outward appearance to inner essence tilts to place the inboard air-flow path of impeller front portion by preceding along impeller, its vertical forward edge connects with the vertical rear side surface of the inboard air-flow path of impeller front side impeller blade, be provided with unobstructed air-flow path (without any the parts disturbing flow, unobstructed air-flow path belongs to the part of the inboard air-flow path of impeller in the passage) synchronously between the vertical posterior edges of water conservancy diversion pressurized machine another impeller blade with the inboard air-flow path rear side of impeller.This synchronous water conservancy diversion pressurized machine is called anterior half across the synchronous water conservancy diversion pressurized machine of radial skew formula.So synchronous water conservancy diversion pressurized machine can only be established along impeller footpath following current forwards, backwards in the inboard air-flow path of an impeller front portion, and several so synchronous water conservancy diversion pressurized machines more than two also can be set.
2, synchronously the water conservancy diversion pressurized machine along impeller radially by the preceding inboard air-flow path of the impeller rear portion that then, from outward appearance to inner essence places, its vertical posterior edges connects with the vertical front side surface of the inboard air-flow path rear side of impeller impeller blade, is provided with unobstructed air-flow path between the vertical forward edge of this synchronous water conservancy diversion pressurized machine another impeller blade with the inboard air-flow path of impeller front side.This synchronous water conservancy diversion pressurized machine is called rear portion half across the synchronous water conservancy diversion pressurized machine of radial skew formula.So synchronous water conservancy diversion pressurized machine can only be established along impeller footpath following current forwards, backwards in the inboard air-flow path of an impeller rear portion, and several so synchronous water conservancy diversion pressurized machines more than two also can be set.
3, the water conservancy diversion pressurized machine turns to by the preceding inboard air-flow path of the impeller front portion that then, from outward appearance to inner essence is located at along impeller synchronously, its vertical forward edge connects with the vertical rear side surface of the impeller blade edge of the inboard air-flow path of impeller front side, is provided with unobstructed air-flow path between the vertical posterior edges of this synchronous water conservancy diversion pressurized machine another impeller blade with the inboard air-flow path rear side of impeller.This synchronous water conservancy diversion pressurized machine is called anterior half across the synchronous water conservancy diversion pressurized machine of anteversion and retroversion inclined.So synchronous water conservancy diversion pressurized machine can only be established along impeller footpath following current forwards, backwards in the inboard air-flow path of an impeller front portion, and synchronous water conservancy diversion pressurized machine such more than two also can be set.
4, synchronously the water conservancy diversion pressurized machine along impeller turn to preceding by the back, from outward appearance to inner essence tilt to place the inboard air-flow path of impeller rear portion, its vertical posterior edges connects with the vertical front side surface of the impeller blade edge of the inboard air-flow path rear side of impeller, is provided with unobstructed air-flow path between the vertical forward edge of this synchronous water conservancy diversion pressurized machine another impeller blade with the inboard air-flow path of impeller front side.This synchronous water conservancy diversion pressurized machine be called rear portion half across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward.So synchronous water conservancy diversion pressurized machine can only be established along impeller footpath following current forwards, backwards in the inboard air-flow path of an impeller rear portion, and several so synchronous water conservancy diversion pressurized machines more than two also can be set.
5, synchronously the water conservancy diversion pressurized machine along impeller radially by preceding then, turn to by preceding and be placed on the inboard air-flow path of impeller front portion along impeller, its vertical forward edge connects with the vertical rear side surface of the inboard air-flow path of impeller front side impeller blade, is provided with unobstructed air-flow path between the vertical posterior edges of this synchronous water conservancy diversion pressurized machine another impeller blade with the inboard air-flow path rear side of impeller.This synchronous water conservancy diversion pressurized machine is called anterior half across the synchronous water conservancy diversion pressurized machine of full-place.So synchronous water conservancy diversion pressurized machine can only be established along impeller footpath following current forwards, backwards in the inboard air-flow path of an impeller front portion, and several so synchronous water conservancy diversion pressurized machines more than two also can be set.
6, synchronously the water conservancy diversion pressurized machine along impeller radially by preceding then, turn to along impeller and to be prepended to the inboard air-flow path of impeller rear portion by the back, its vertical posterior edges connects with the vertical front side surface of the inboard air-flow path rear side of impeller impeller blade, is provided with unobstructed air-flow path between the vertical forward edge of this synchronous water conservancy diversion pressurized machine another impeller blade with the inboard air-flow path of impeller front side.This synchronous water conservancy diversion pressurized machine is called rear portion half across the synchronous water conservancy diversion pressurized machine of full-place.So synchronous water conservancy diversion pressurized machine can only be established along impeller footpath following current forwards, backwards in the inboard air-flow path of an impeller rear portion, and several so synchronous water conservancy diversion pressurized machines more than two also can be set.
7, in the inboard air-flow path of impeller, rear portion half both had been set across the synchronous water conservancy diversion pressurized machine of radial skew formula, establish anterior half again across the synchronous water conservancy diversion pressurized machine of radial skew formula, this front portion half is not connected across the synchronous water conservancy diversion pressurized machine of radial skew formula with its corresponding rear portion half across the synchronous water conservancy diversion pressurized machine of radial skew formula, unobstructed air-flow path in the middle of being provided with between them (middle unobstructed air-flow path belongs to the part of the inboard air-flow path of impeller).
8, in the inboard air-flow path of impeller, both be provided with rear portion half across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward, establish anterior half again across the synchronous water conservancy diversion pressurized machine of anteversion and retroversion inclined, this front portion half across the synchronous water conservancy diversion pressurized machine of anteversion and retroversion inclined with its corresponding rear portion half across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward be not connected unobstructed air-flow path in the middle of being provided with between them.
9, rear portion half both had been set across the synchronous fluid director of full-place in the inboard air-flow path of impeller, establish anterior half again across the synchronous fluid director of full-place, this front portion half is not connected across the synchronous fluid director of full-place across the synchronous fluid director of the full-place rear portion half corresponding with it, is provided with unobstructed air-flow path between them.
10, in the inboard air-flow path of impeller, anterior posterior be provided with respectively anterior half across radial skew formula and rear portion partly across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward, perhaps be provided with respectively anterior half across anteversion and retroversion inclined and rear portion partly across the synchronous water conservancy diversion pressurized machine of radial skew formula, this anterior posterior two and half is not connected across the synchronous water conservancy diversion pressurized machine of formula, unobstructed air-flow path in the middle of being provided with between them.
11, the inboard air-flow path front and rear of impeller be provided with respectively anterior half across the synchronous water conservancy diversion pressurized machine of full-place and rear portion half across the synchronous water conservancy diversion pressurized machine of radial skew formula or rear portion partly across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward, this anterior posterior two and half is not connected across the synchronous water conservancy diversion pressurized machine of formula, unobstructed air-flow path in the middle of being provided with between them.
12, inboard air-flow path rear portion of impeller and front portion be provided with respectively rear portion half across the synchronous water conservancy diversion pressurized machine of full-place with anterior half across the synchronous water conservancy diversion pressurized machine of radial skew formula, perhaps anterior half across the synchronous water conservancy diversion pressurized machine of anteversion and retroversion inclined, this rear portion anterior two and half is not connected unobstructed air-flow path in the middle of being provided with between them across the synchronous water conservancy diversion pressurized machine of formula.
Edge, the vertical one or both sides of water conservancy diversion pressurized machine can intersect vertically with the vertical side of impeller blade synchronously, and it is crossing also can to tilt, and the angle that tilts to intersect with impeller blade is more little, and it is just big more to the thrust that gas produces, and is just many more to the energy of gas transfer.
Synchronous water conservancy diversion pressurized machine is with the negative pressure partitioning wall difference of common rear flow fan impeller.The negative pressure partitioning wall is located on the impeller blade thrust wall axial edge, just is located at the inboard air-flow path of the impeller outside, and the water conservancy diversion pressurized machine then is provided in a side of the inboard air-flow path of impeller inboard synchronously; The function of negative pressure partitioning wall is to stop that the gaseous matter in the inboard air-flow path of impeller axially overflows the inboard air-flow path of impeller, (extraneous part material enters the impeller inboard by the negative pressure gap to stop external substance to be entered the impeller inboard by it, and can not enter impeller through the negative pressure partitioning wall), the function of water conservancy diversion pressurized machine is directly external substance to be introduced the impeller inboard synchronously, in the inboard air-flow path of impeller, give water conservancy diversion again, in case produce eddy current; The negative pressure partitioning wall that is connected in an impeller blade (many walls blade thrust wall) can only be established one, and one or more are several and the synchronous water conservancy diversion pressurized machine that is connected in an impeller blade can be provided with.
Here should be noted that, front and rear half across the anteversion and retroversion inclined and after the synchronous water conservancy diversion pressurized machine of inclined that leans forward follow the negative pressure partitioning wall of many walls blade of common rear flow fan impeller the same, all be to connect with impeller blade (impeller blade thrust wall) axial edge, but, the negative pressure partitioning wall can only be vertical with impeller blade or slight inclination intersects, and anterior posterior half across the anteversion and retroversion inclined and after the synchronous water conservancy diversion pressurized machine of inclined that leans forward can only be to tilt to intersect with impeller blade, tilt greatly more (but can not be approaching parallel), external substance can be introduced the impeller inboard more, it is too little to tilt, and then external substance can not be introduced the impeller inboard.On the impeller blade negative pressure partitioning wall can only be set, the synchronous water conservancy diversion pressurized machine that connects an impeller blade can be provided with that one or more are several; Even be connected in the front portion of an impeller blade or rear portion half across the anteversion and retroversion inclined and after the synchronous water conservancy diversion pressurized machine of inclined that leans forward, radially its front and back connection angle also can be inequality along impeller, or radially anterior handing-over angle is greater than the handing-over angle at rear portion radially, or radially the handing-over angle at rear portion greater than radially anterior handing-over angle.
On the draught fan impeller, the negative pressure partitioning wall can both be set, synchronous water conservancy diversion pressurized machine was set again; The inboard air-flow path of impeller on impeller both sides can be provided with negative pressure partitioning wall and water conservancy diversion pressurized machine synchronously simultaneously respectively, and inboard air-flow path one side of an impeller on impeller also can not only be established the negative pressure partitioning wall but also establish synchronous water conservancy diversion pressurized machine simultaneously.
Because different fan impeller blade shapes are different, the shape of the inboard air-flow path of its impeller is also different, synchronous water conservancy diversion supercharger structure shape correspondingly is also different, in other words, the water conservancy diversion pressurized machine can be designed to multiple different shape synchronously, as straight plate shape, arc plate shape, twisted plate shape, airfoil or the like.
A draught fan impeller can be provided with synchronous water conservancy diversion pressurized machine from impeller one axial sides in the inboard air-flow path of impeller, also can in the inboard air-flow path of impeller synchronous water conservancy diversion pressurized machine be set from impeller two axial sides.
In order to guarantee that the inboard air-flow path of impeller can fully hold air flow rate, abundant deceleration diffusion, the inboard air-flow path of impeller should make one axially or two axial expanssion types, and this just requires fan impeller blade to be amplified by radially anterior in axial direction the expansion gradually to rear end radially.
Synchronous rear flow fan impeller one axial sides is established full synchronous concurrent intake grill, by the pumping action of synchronous water conservancy diversion pressurized machine by centrifugal force, can make the whole axial sides of impeller can both aspirate external substance.
If full synchronous concurrent intake grill is all established in two axial sides, then can make draught fan impeller all aspirate external substance from two whole axial sides.As seen, synchronous rear flow fan impeller flow is big, can compare with the axial fan impeller, but its wind pressure ratio general axis flow fan blast height.
General centrifugal blower, the draught fan impeller of some specifications and models, in order to increase gas flow, and in the middle of impeller one axial sides or two axial sides, large diameter special impeller intake grill is set, but special impeller intake grill diameter is big more, the impeller blade radial length is just more little, the impeller blade radial length is little, and suction is just poor, and is just few to the energy of gas transfer, thereby whole blower fan suction effect is poor, and blast is also very low.The impeller of synchronous rear flow fan, because impeller inlet is located at whole impeller axial sides, the impeller blade radial length is big, and water conservancy diversion pressurized machine radial length is also big synchronously, is again directly by action of centrifugal force suction external substance, and, synchronously water conservancy diversion pressurized machine and impeller blade can be simultaneously all to the gas transfer energy, thereby synchronous rear flow fan impeller suction is strong, and flow is big, the blast height, much more superior than general centrifugal blower fan blade wheel and common rear flow fan impeller.
The synchronous rear flow fan impeller, do not establish the double leaf dish, or only establish single leaf dish, or only establish blade negative pressure partitioning wall, its frictional loss is much smaller, what is more important is because the water conservancy diversion and the buffer action of synchronous water conservancy diversion pressurized machine can be avoided the inboard eddy current that produces of impeller, avoid eddy current loss, obviously, synchronous rear flow fan impeller adiabatic efficiency height, noise is low.
Compare with general old-fashioned centrifugal blower, the middle-size and small-size synchronous rear flow fan of the present invention is energy-conservation 15%, large-scale synchronous rear flow fan energy-conservation 20%.
The synchronous rear flow fan impeller is the same with common rear flow fan impeller, all be from the axial intake-gas of axial sides, axially discharge gas from its radial extremity impeller outlet again, and synchronous rear flow fan, because the effect of synchronous water conservancy diversion pressurized machine is arranged, and its radial extremity impeller outlet is axially drained the gas better effects if.Thereby the synchronous rear flow fan impeller is more suitable for the use of plural serial stage assembling high pressure extra-high voltage gas compressor.By the high pressure extra-high voltage gas compressor of this impeller serial assembling, because that its air-flow path curves tortuous few absolute growth is little, the air-flow flow process is short, so its compression effectiveness is better, efficient is higher, saves the energy more, and the synchronous rear flow fan impeller especially is fit to plural serial stage to be used.
In the sidewind diffusion passage separation fluid director can also be set in the casing of the present invention, separate fluid director and be located at the impeller outlet periphery, turn to along impeller, separate the fluid director import by its front end and separate the fluid director outlet gradually away from the impeller cylindrical, separate the fluid director longitudinal edge and connect with the casing axial side wall to its rear end near the outlet of impeller cylindrical.Separating fluid director can be multiple different structural type, as arc plate shape, french curves shape, airfoil or the like.Because the effect of separating fluid director is arranged, can make in the casing and reduce eddy current in the sidewind diffusion passage, reduce eddy current loss, so can further improve fun for inner efficiency, reduce fan noise.
Below in conjunction with drawings and Examples the present invention is done at length and to explain.
Description of drawings
The blade wheel structure schematic representation of Fig. 1-embodiment of the invention 1;
The synchronous water conservancy diversion supercharger structure of Fig. 2-embodiment of the invention 1 impeller schematic representation;
Schematic representation is used in the assembling of Fig. 3-embodiment of the invention 1 casing impeller;
The blade wheel structure schematic representation of Fig. 4-embodiment of the invention 2;
The synchronous water conservancy diversion supercharger structure of Fig. 5-embodiment of the invention 2 impellers schematic representation;
The synchronous water conservancy diversion supercharger structure of Fig. 6-embodiment of the invention 3 impellers schematic representation;
The synchronous water conservancy diversion supercharger structure of Fig. 7-embodiment of the invention 4 impellers schematic representation;
Schematic representation is used in the assembling of Fig. 8-embodiment of the invention 4 casing impellers;
The synchronous water conservancy diversion supercharger structure of Fig. 9-embodiment of the invention 5 impellers schematic representation;
The synchronous water conservancy diversion supercharger structure of Figure 10-embodiment of the invention 6 impellers schematic representation;
The synchronous water conservancy diversion supercharger structure of Figure 11-embodiment of the invention 7 impellers schematic representation;
The synchronous water conservancy diversion supercharger structure of Figure 12-embodiment of the invention 8 impellers schematic representation;
The synchronous water conservancy diversion supercharger structure of Figure 13-embodiment of the invention 9 impellers schematic representation;
The blade wheel structure of Figure 14-embodiment of the invention 10 (cross-sectional) schematic representation;
The blade wheel structure schematic representation of Figure 15-embodiment of the invention 11;
Schematic representation is used in the assembling of Figure 16-embodiment of the invention 11 casing impellers;
Separate the fluid director structural representation in the casing of Figure 17-embodiment of the invention 12 in the sidewind diffusion passage.
The explanation of accompanying drawing drawing:
Sidewind diffusion passage in 1 fan casing, 2 casings, 3 impellers, 4 impeller sleeves, 5 leaf blade disk, 6 impeller blades, the inboard air-flow path of 7 impellers, 8 synchronous water conservancy diversion pressurized machines, 9 synchronous water conservancy diversion supercharging imports, 10 synchronous water conservancy diversion supercharging outlets, 11 unobstructed air-flow paths, the outlet of 12 impeller cylindricals, 13 negative pressure partitioning walls, 14 motors, 15 air inlets, 16 fan outlets, 17 middle reinforcings are isolated the leaf dish, 18 front axles are to air-flow path, 19 backs are air-flow path axially, 20 blower fan rear side intake grills, 21 middle unobstructed air-flow paths, 22 axial no blade to enlarge pressure passages, 23 special impeller intake grills, 24 reinforce the leaf dish, and 25 separate fluid director, 26 separate the fluid director import, and 27 separate the fluid director outlet.
Embodiment
Embodiment 1, synchronous rear flow fan is (with reference to figure 1, Fig. 2, Fig. 3), its structure comprises fan casing 1, sidewind diffusion passage 2 in the casing, impeller 3, impeller sleeve 4, leaf blade disk 5, impeller blade 6, (body is provided with air inlet one side that is located at both sides with the motor branch and is the body front side or claims axial front side the inboard air-flow path 7 of impeller that impeller blade constitutes with the leaf blade disk, a corresponding with it side is the body rear side or claims axial rear side, body miscellaneous part position appellation and the like), be provided with two entirely across the synchronous water conservancy diversion pressurized machine 8 of formula before and after radially in the inboard air-flow path 7 of each impeller on the impeller, first synchronous water conservancy diversion pressurized machine 8 by the impeller axial front side near impeller sleeve 4 places along impeller radially in the inboard air-flow path 7 of impeller from then preceding, from outward appearance to inner essence oblique placing in the inboard air-flow path 7 of impeller, its front end is provided with synchronous water conservancy diversion supercharging import 9, its rear end of going deep into the inboard air-flow path 7 of impeller is provided with synchronous water conservancy diversion supercharging outlet 10, these synchronous water conservancy diversion pressurized machine 8 vertical both sides of the edge weld together with (front and back) two impeller blades 6 vertical sides about it, and the synchronous water conservancy diversion supercharging outlet of this synchronous water conservancy diversion pressurized machine 8 is terminal to leave certain clearance with between the leaf blade disk 5.Second synchronous water conservancy diversion pressurized machine 8 is located at first synchronous water conservancy diversion pressurized machine footpath rearwards, its radially anterior water conservancy diversion supercharging entrance point synchronously leaves certain spacing with the anterior water conservancy diversion supercharging entrance point synchronously of first synchronous water conservancy diversion pressurized machine, this synchronous water conservancy diversion pressurized machine 8 is parallel and radially by the preceding radially rear portion of the inboard air-flow path 7 of impeller that then, from outward appearance to inner essence places, it is the same with first synchronous water conservancy diversion pressurized machine with Placement, the import and export form of impeller blade with first synchronous water conservancy diversion pressurized machine.Constitute the radially anterior synchronous concurrent intake grill of impeller by former and later two synchronous water conservancy diversion supercharging entrance points radially with the impeller blade axial front side edge of its left and right sides, constitute radially rear portion synchronous concurrent intake grill of impeller with impeller blade axial front side edge, both sides to the impeller outlet place that second synchronous water conservancy diversion pressurized machine connects by second synchronous water conservancy diversion supercharging entrance point.This impeller blade 6 from impeller radially anterior to the impeller footpath to the back-end axial dimension strengthen the axial expansion formula that forms gradually, the inboard air-flow path of impeller correspondingly also is radially then to become the axial expansion formula by preceding along impeller.This impeller axial front side is except the axle sleeve position, and surplus person is synchronous concurrent intake grill position, and whole impeller shaft can externally aspirate material to leading flank.The all impeller blades of this impeller form a firm integral body by synchronous water conservancy diversion pressurized machine support and connection effect, and whole impeller intensity is big, good rigidly.
The impeller of present embodiment is assemblied in the fan casing 1, connect with motor 14 motor shafts, rely on the driven by motor rotation, fan casing 1 is provided with air inlet 15 and fan outlet 16, air inlet 15 is located at the casing axial front side, and the draught fan impeller axial front side machine intake grill that follows the wind is just relative.
During work, the synchronous water conservancy diversion pressurized machine of impeller axial front side directly by the effect of rotary centrifugal force by synchronous water conservancy diversion supercharging import, synchronous concurrent intake grill, impel whole impeller axial front side can pass through air inlet strong pumping ambient atmos.The gas that suction enters the impeller inboard quickens pressurization by impeller blade, the energy of water conservancy diversion pressurized machine absorption synchronously again.Because the whole front axle of impeller is not established the leaf dish to the side, so there is not the leaf disk friction loss.Clearly, this routine air quantity is big, the blast height, and the efficient height, noise is low.
This example adapts to the assembling ventilation, the air blast breeze fan uses.
During work, the impeller front axle aspirates the ambient atmos material to the side jointly by synchronous water conservancy diversion supercharging import and unobstructed air-flow path import, be that the whole front axle of impeller is to all external intake-gas material in side, corresponding with it air inlet bore is also bigger, therefore, whole compressor flow is just bigger.Because synchronously the water conservancy diversion pressurized machine is half across formula, only accounts for the inboard air-flow path part of impeller position, this body structure is narrow, and size is little, and is in light weight, thereby this wheel friction loss is littler, and mechanical efficiency can be higher.
The same with example 1, this example adapts to the assembling ventilation, the air blast breeze fan uses.
This routine impeller weight is lighter, and frictional loss is littler, and noise is lower, and is more energy-efficient, more helps environmental protection.
This routine purposes is the same with example 2.
Embodiment 4, synchronous rear flow fan is (with reference to figure 7, Fig. 8), this example is the same substantially with example 1, this routine whole draught fan impeller becomes the axial expansion formula, the leaf dish is not established in axial side behind the draught fan impeller, the impeller front axle does not axially all have the leaf dish in the side to side and back, but reinforce in the middle of being provided with in the middle of the axial sides before and after the impeller and isolate leaf dish 17, the middle reinforcing on the isolation two axial sides, leaf dish 17 front and back is connected and fixed 6 impeller blades respectively, be that former and later two axial sides of whole impeller are provided with impeller blade respectively separately, middle reinforcing is isolated leaf dish 17 the inboard air-flow path of impeller is divided into front axle to axial air-flow path 19 two-part of air-flow path 18 and back, each front axle axially all is provided with two respectively entirely across the synchronous water conservancy diversion pressurized machine 8 of formula (for the sake of clarity in the air-flow path 19 to air-flow path 18 and each back, a front axle axial air-flow path behind air-flow path and only draws on the accompanying drawing 7, only draw one in each air-flow path entirely across the synchronous water conservancy diversion pressurized machine 8 of formula), forward latter two axial sides air draught of draught fan impeller.These routine impeller two axial sides radially all are provided with special impeller intake grill 23 in the front portion.Corresponding is that this routine fan casing is provided with blower fan rear side intake grill 20, and whole blower fan is by former and later two air inlet air intakes.
During work, the sideways synchronous water conservancy diversion pressurized machine of diaxon respectively from former and later two air inlet inspiration gas, is given processing by the rotary centrifugal force effect before and after the draught fan impeller, makes it to quicken supercharging.Directly pass through and the air-flow of going into is isolated and water conservancy diversion through water conservancy diversion pressurized machine synchronously by the special impeller intake grill, the air-flow that is entered by the special impeller intake grill all is imported into inboard air-flow path in the impeller (air-flow path of the inboard side of water conservancy diversion pressurized machine synchronously) lining and flows, the logistics of being aspirated laterally from impeller shaft by synchronous water conservancy diversion pressurized machine then flows in the inboard air-flow path of impeller outer (air-flow path of the water conservancy diversion pressurized machine outside one side synchronously) lining, the inboard air-flow path of impeller is directly passed through and the air-flow of going into follows the air-flow of being introduced from axial direction by synchronous water conservancy diversion pressurized machine to collide to produce fierce eddy current by the special impeller intake grill with regard to having avoided like this.Thereby this example is energy-efficient, and noise is low.
This routine flow is big, and the blast height can replace big flow axis flow fan to use, and replace big flow axis flow fan to use, and its volume can be much smaller, and its blast but is so great that many.
During the work of this example, the effect of the effect of the synchronous water conservancy diversion pressurized machine on the impeller, performance, generation is the same with the synchronous water conservancy diversion pressurized machine on example 1 impeller, and purposes with example 1 too.
The effect that synchronous water conservancy diversion pressurized machine on this routine impeller produces, performance, effect follow the synchronous water conservancy diversion pressurized machine on example 2 impellers the same, and purposes with example 2 too.
During work, directly pass through and the air-flow of going into imports the inboard air-flow paths of impellers through water conservancy diversion pressurized machine 8 synchronously and derived the outlet of impeller cylindrical again by special impeller intake grill 23, can greatly slow down the vortex flow of air-flow like this, simultaneously, because the shunting buffer action of synchronous water conservancy diversion pressurized machine, the air-flow major part that is imported in the inboard air-flow path of impeller flows in the inboard of the inboard air-flow path of impeller (air-flow path of the inboard side of water conservancy diversion pressurized machine synchronously), sub-fraction flows in the outer inboard of the inboard air-flow path of impeller (air-flow path of the water conservancy diversion pressurized machine outside one side synchronously), like this, because the isolation and the guide functions of synchronous water conservancy diversion pressurized machine, directly pass through and the air-flow of going into to the side by the impeller front axle, just can not collide with the Radial Flow air-flow of inboard air-flow path in the inboard air-flow path of impeller, thereby avoid producing fierce eddy current, all these, naturally just can guarantee that the whole wind function raises the efficiency, save the energy.
During work, the inboard air-flow path internal diameter of impeller to first rear portion half of front portion across after lean forward air-flow that the synchronous water conservancy diversion pressurized machine suction of inclined is guided in the impeller inboard radially flow in second synchronous water conservancy diversion pressurized machine in rear portion radially, draw impeller through second synchronous water conservancy diversion pressurized machine water conservancy diversion again, so basically, can avoid producing eddy current in the inboard air-flow path of impeller, thereby just can raise the efficiency, save the energy, reduce noise.
Embodiment 9, synchronous rear flow fan (with reference to Figure 13), synchronous water conservancy diversion pressurized machine in the inboard air-flow path of this routine impeller also is half across formula, different is that the inboard air-flow path front and rear of this routine impeller is provided with half respectively across the synchronous water conservancy diversion pressurized machine of formula, promptly two front portions half are set across the synchronous water conservancy diversion pressurized machine of radial skew formula in the inboard air-flow path of impeller front portion, the inboard air-flow path of impeller rear portion be provided with a rear portion half across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward, this anterior posterior two and half is not connected across the synchronous water conservancy diversion pressurized machine of formula, unobstructed air-flow path 21 in the middle of being provided with between them.Its middle front part half radially then, from outward appearance to inner essence tilts to place the inboard air-flow path of impeller front portion by preceding across the synchronous water conservancy diversion pressurized machine of radial skew formula along impeller, and its vertical forward edge connects with the vertical rear side surface of impeller blade of the inboard air-flow path of impeller front side; Its mid-rear portion half across after lean forward the synchronous water conservancy diversion pressurized machine of inclined along impeller turn to preceding by the back, from outward appearance to inner essence tilt to place in the inboard air-flow path of impeller, its vertical posterior edges connects with the vertical front side surface of impeller blade edge.
During work, front portion half is directly yearned for suction water conservancy diversion gas in the inboard air-flow path of impeller across the synchronous water conservancy diversion pressurized machine of radial skew formula along impeller, rear portion half across after the synchronous water conservancy diversion pressurized machine of inclined that leans forward turn to along impeller and go to suction water conservancy diversion gas in the inboard air-flow path of impeller by the back, unobstructed air-flow path flows out impeller by the outlet of impeller cylindrical to the gas stream of suction water conservancy diversion again through the centre, rely on the synchronous water conservancy diversion pressurized machine of anterior posterior two row suction water conservancy diversion gas in the inboard air-flow path of impeller in the entire work process, whole impeller draft meeting is stronger, impel whole typhoon machine flow big, the blast height, the efficient height is saved the energy.
During work, at any time go into the air-flow of the inboard air-flow path of impeller to the suction water conservancy diversion from impeller shaft by synchronous water conservancy diversion pressurized machine 8, at any time be tilted import impeller radially the axial no blade to enlarge pressure passage at rear portion give fully to slow down diffusion, then this air-flow is tilted to arrange in the impeller rear axle laterally along the impeller radial-axial, since this air-flow the impeller inner shafts in no blade to enlarge pressure passage by the diffusion that fully slows down, its impeller outlet pressure can be quite high.Fairly obvious.This example can obtain energy-efficient good effect.
During work, the material that aspirates water conservancy diversion by synchronous water conservancy diversion pressurized machine 8 can flow through the inboard air-flow path of impeller smoothly, can not cause any obstruction, and especially the bigger solid matter of draw volume and area can pass through the inboard air-flow path of impeller smoothly.This example adapts to the various material suction machines of making, and carries various garbage wastes and production material in order to suction, carries refuses such as various useless cloth sheets, waste paper sheet, wooden unit, wood chip, melon skin, dish leaf as suction, and the multiple solid raw material in the industrial and agricultural production.
The material suction machine suction solid material of this example assembling is clogging impeller neither, again can be energy-efficient, and can be energy-conservation more than 15%.
During work, because the separation guide functions of separating fluid director is arranged, the air-flow that can avoid the part high velocity air of discharging behind the impeller directly to discharge earlier with impeller in the sidewind diffusion passage in the casing collides and produces fierce eddy current, thereby can reduce eddy current loss, improve fun for inner efficiency, also reduced fan noise simultaneously.
Claims (10)
1, synchronous rear flow fan, comprise fan casing (1), sidewind diffusion passage (2) in the casing, impeller (3), impeller sleeve (4), leaf blade disk (5), impeller blade (6), impeller blade (6) is with the inboard air-flow path (7) of the impeller that forms between the leaf blade disk (5), it is characterized in that being provided with synchronous water conservancy diversion pressurized machine (8) in the inboard air-flow path of impeller (7), water conservancy diversion pressurized machine (8) front end is provided with synchronous water conservancy diversion supercharging import (9) synchronously, its rear end is provided with synchronous water conservancy diversion supercharging outlet (10), water conservancy diversion pressurized machine (8) longitudinal edge connects with the vertical side of impeller blade synchronously, and water conservancy diversion pressurized machine (8) constitutes the synchronous concurrent intake grill with impeller blade (6) synchronously.
2, synchronous rear flow fan according to claim 1, it is characterized in that described synchronous water conservancy diversion pressurized machine (8) is for entirely across formula, this synchronous water conservancy diversion pressurized machine (8) radially then, is from outward appearance to inner essence tilted to place in the inboard air-flow path of impeller (7) by preceding along impeller, and water conservancy diversion pressurized machine (8) vertically vertically all connects two vertical sides of impeller blade of both sides with the inboard air-flow path of impeller (7) both sides of the edge synchronously.
3, synchronous rear flow fan according to claim 1, it is characterized in that described synchronous water conservancy diversion pressurized machine (8) is for entirely across formula, this synchronous water conservancy diversion pressurized machine (8) along impeller radially by preceding then, turn to by preceding and be placed in the inboard air-flow path of impeller (7) along impeller, water conservancy diversion pressurized machine (8) vertically vertically all connects two vertical sides of impeller blade of both sides with the inboard air-flow path of impeller (7) both sides of the edge synchronously.
4, synchronous rear flow fan according to claim 1, it is characterized in that described synchronous water conservancy diversion pressurized machine (8) is for entirely across formula, this synchronous water conservancy diversion pressurized machine (8) along impeller turn to preceding by the back, from outward appearance to inner essence tilt to place in the inboard air-flow path of impeller (7), water conservancy diversion pressurized machine (8) vertically vertically all connects two vertical sides of impeller blade of both sides with the inboard air-flow path of impeller (7) both sides of the edge synchronously.
5, synchronous rear flow fan according to claim 1, it is characterized in that described synchronous water conservancy diversion pressurized machine (8) is for entirely across formula, this synchronous water conservancy diversion pressurized machine (8) turns to by preceding then, from outward appearance to inner essence to tilt to place in the inboard air-flow path of impeller (7) along impeller, and water conservancy diversion pressurized machine (8) vertically vertically all connects two vertical sides of impeller blade of both sides with the inboard air-flow path of impeller (7) both sides of the edge synchronously.
6, synchronous rear flow fan according to claim 1, it is characterized in that described synchronous water conservancy diversion pressurized machine (8) is partly across formula, this synchronous water conservancy diversion pressurized machine (8) is located at the inboard air-flow path of impeller front portion, its vertical forward edge connects with the vertical rear side surface of impeller blade of the inboard air-flow path (7) of impeller front side, and water conservancy diversion pressurized machine (8) vertically is provided with unobstructed air-flow path (11) between posterior edges another impeller blade front side with inboard air-flow path (7) rear side of impeller synchronously.
7, synchronous rear flow fan according to claim 1, it is characterized in that described synchronous water conservancy diversion pressurized machine (8) is partly across formula, this synchronous water conservancy diversion pressurized machine (8) is located at the inboard air-flow path of impeller rear portion, its vertical posterior edges connects with the vertical front side surface of impeller blade of inboard air-flow path (7) rear side of impeller, and water conservancy diversion pressurized machine (8) vertically is provided with unobstructed air-flow path (11) between forward edge another impeller blade rear side with the inboard air-flow path (7) of impeller front side synchronously.
8, synchronous rear flow fan according to claim 1, the front and rear that it is characterized in that the inboard air-flow path of an impeller (7) is provided with half respectively across the synchronous water conservancy diversion pressurized machine of formula (8), this front portion half is not connected across the synchronous water conservancy diversion pressurized machine of formula with its corresponding rear portion half across the synchronous water conservancy diversion pressurized machine of formula, unobstructed air-flow path (21) in the middle of being provided with between them.
9, synchronous rear flow fan according to claim 1, it is characterized in that impeller blade (6) axial edge is not connected with its corresponding leaf blade disk (5), this impeller blade axial edge is provided with axial no blade to enlarge pressure passage (22) with between its corresponding leaf blade disk.
10, synchronous rear flow fan according to claim 1, it is characterized in that being provided with in the sidewind diffusion passage (2) in the fan casing and separate fluid director (25), separate fluid director (25) and be located at the impeller outlet periphery, turn to along impeller, separate fluid director import (26) by its front end and separate fluid director outlet (27) gradually away from the impeller cylindrical, separate fluid director (25) longitudinal edge and connect with the casing axial side wall to its rear end near impeller cylindrical outlet (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810140212 CN101382150B (en) | 2008-04-23 | 2008-09-13 | Synchronous rear flow fan |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100157248A CN101280791A (en) | 2008-04-23 | 2008-04-23 | Centrifuge synchronous concurrent draught fan impeller |
| CN200810015724.8 | 2008-04-23 | ||
| CN 200810140212 CN101382150B (en) | 2008-04-23 | 2008-09-13 | Synchronous rear flow fan |
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| CN101382150A true CN101382150A (en) | 2009-03-11 |
| CN101382150B CN101382150B (en) | 2013-05-22 |
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| CNA2008100157248A Pending CN101280791A (en) | 2008-04-23 | 2008-04-23 | Centrifuge synchronous concurrent draught fan impeller |
| CN 200810140212 Expired - Fee Related CN101382150B (en) | 2008-04-23 | 2008-09-13 | Synchronous rear flow fan |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028546A1 (en) * | 2008-09-13 | 2010-03-18 | Lin Junhao | Synchronous backflow fan |
| WO2010130146A1 (en) * | 2009-05-15 | 2010-11-18 | Lin Junhao | Multifunctional synchronous backflow ventilating compressor |
| CN104564810A (en) * | 2015-01-28 | 2015-04-29 | 王春 | Front fan for motor |
| CN107023431A (en) * | 2017-06-16 | 2017-08-08 | 张九军 | A kind of water generating impeller |
| CN109882444A (en) * | 2019-02-25 | 2019-06-14 | 江苏大学 | A kind of interior mixed-flow pump impeller with ladder fairing of runner |
| CN112845481A (en) * | 2021-01-07 | 2021-05-28 | 曹本静 | Bidirectional wind direction adjusting equipment of environmental protection equipment |
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| JP5280527B2 (en) * | 2009-05-27 | 2013-09-04 | パナソニック株式会社 | Heating device |
| CN102418714B (en) * | 2011-12-20 | 2014-06-11 | 林钧浩 | Centrifugal fan capable of diversion, pressure increase and energy saving |
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2008
- 2008-04-23 CN CNA2008100157248A patent/CN101280791A/en active Pending
- 2008-09-13 CN CN 200810140212 patent/CN101382150B/en not_active Expired - Fee Related
Cited By (9)
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| WO2010028546A1 (en) * | 2008-09-13 | 2010-03-18 | Lin Junhao | Synchronous backflow fan |
| WO2010130146A1 (en) * | 2009-05-15 | 2010-11-18 | Lin Junhao | Multifunctional synchronous backflow ventilating compressor |
| CN104564810A (en) * | 2015-01-28 | 2015-04-29 | 王春 | Front fan for motor |
| CN107023431A (en) * | 2017-06-16 | 2017-08-08 | 张九军 | A kind of water generating impeller |
| CN107023431B (en) * | 2017-06-16 | 2018-11-06 | 泉州市欣泓润工业设计有限公司 | A kind of water generating impeller |
| CN109882444A (en) * | 2019-02-25 | 2019-06-14 | 江苏大学 | A kind of interior mixed-flow pump impeller with ladder fairing of runner |
| CN109882444B (en) * | 2019-02-25 | 2020-08-28 | 江苏大学 | Mixed flow pump impeller with stepped rectifying device in flow channel |
| CN112845481A (en) * | 2021-01-07 | 2021-05-28 | 曹本静 | Bidirectional wind direction adjusting equipment of environmental protection equipment |
| CN112845481B (en) * | 2021-01-07 | 2022-03-25 | 山东风顺制冷科技集团有限公司 | Bidirectional wind direction adjusting equipment of environmental protection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101280791A (en) | 2008-10-08 |
| CN101382150B (en) | 2013-05-22 |
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