CN104832439A - Annular-flow material-suction/discharge fan - Google Patents
Annular-flow material-suction/discharge fan Download PDFInfo
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- CN104832439A CN104832439A CN201510182811.2A CN201510182811A CN104832439A CN 104832439 A CN104832439 A CN 104832439A CN 201510182811 A CN201510182811 A CN 201510182811A CN 104832439 A CN104832439 A CN 104832439A
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Abstract
The invention discloses an annular-flow material-suction/discharge fan which comprises a housing, a housing air inlet, a housing air inlet entrance, a housing air inlet exit, a housing air inlet inner side flow channel, an impeller, impeller blades, an impeller inner side flow channel, a housing inner side flow channel, a housing air outlet, an impeller middle air inlet and an impeller blade disc. The annular-flow material-suction/discharge fan is characterized in that the circle area of the housing air inlet exit is larger than the impeller axial side surface circle area; and the housing air inlet inner side flow channel is directly communicated with the housing inner side flow channel at the radial outer side of the impeller in the housing. Compared with the prior art, materials absorbed and discharged by the annular-flow material-suction/discharge fan do not pass through the impeller even thought passing through the inner side of the machine body, thereby not blocking the impeller, and not contacting and not impacting the impeller or an impeller isolation shunting disc; and the material-suction/discharge fan is various in function, wide in application range, small in frictional loss, high in efficiency, little in energy consumption and low in noise.
Description
Technical field
The present invention relates to a kind of circulation suction materiel fan, belong to gas field of mechanical technique.
Background technique
The various ventilators that present people use, suction material machine great majority all will pass through impeller, and impeller is seriously stained, and is easy to again result in blockage, and cause blower fan function few, using scope is narrow.Rear flow fan, synchronous rear flow fan, centrifugal isolation shunting sucking-discharging material ventilator, although suction material only impeller, not clogging impeller, but the isolation shunting disk on contact-impact impeller or contact-impact impeller wanted by the material of its suction, can cause impeller or impeller isolation shunting disk stained, shorten impeller working life, all these just cause rear flow fan, synchronous rear flow fan, centrifugal isolation shunting sucking-discharging material ventilator all has certain narrow limitation, using scope is narrow, frictional loss is large, utilization efficiency is low, big energy-consuming, and noise is large.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, and a kind of suction solid matter is provided, although suction pollutes uncontamination gas liquid material and passes through internal body, but all only impeller, not clogging impeller, do not contact not impacting impeller or impeller isolation shunting disk, function is many, using scope is broad, and frictional loss is little, and efficiency is high, power consumption is few, the circulation suction materiel fan that noise is low.
Object of the present invention can be reached by following technical measures: a kind of circulation suction materiel fan, include casing, shell air inlet, shell air inlet import, shell air inlet outlet, intake grill, leaf blade disk in the middle of side runner, internal side of shell runner, shell air outlet, impeller in side runner, impeller, impeller blade, impeller in shell air inlet, be characterized in, the shell air inlet outlet area of a circle is greater than the impeller axial sides area of a circle, and in shell air inlet, side runner is directly communicated with the internal side of shell runner outside casing internal lobe wheel radial.
In order to realize object of the present invention further, impeller blade is not anteriorly established in impeller footpath, do not establish intake grill in the middle of impeller, side runner in impeller blade and impeller is posteriorly established in impeller footpath, and the radial posterior leaflet runner of impeller is directly communicated with side runner in shell air inlet with side runner in impeller footpath posteriorly impeller.
In order to realize object of the present invention further, the whole impeller blade runner of impeller is directly communicated with side runner in shell air inlet with side runner in impeller.
In order to realize object of the present invention further, the whole impeller blade runner of impeller is not directly communicated with side runner in shell air inlet with side runner in impeller.
In order to realize object of the present invention further, intake grill flow deflecting cone is established in side runner in shell air inlet, intake grill flow deflecting cone rear end is vertically just to impeller axial sides, intake grill flow deflecting cone front end edge axially points to shell air inlet import, and intake grill flow deflecting cone is connected with runner sidewall inside shell air inlet by flow deflecting cone connecting sheet.
In order to realize object of the present invention further, the intake grill flow deflecting cone cross sectional rear end area in shell air inlet in side runner is greater than the impeller axial sides area of a circle, and impeller blade runner is not directly communicated with side runner in shell air inlet with side runner in impeller.
In order to realize object of the present invention further, intake grill flow deflecting cone is provided with in side runner in shell air inlet, intake grill flow deflecting cone rear end is vertically just to impeller axial sides, intake grill flow deflecting cone cross sectional rear end area is less than the impeller axial sides area of a circle, and the radial posterior leaflet runner of impeller is directly communicated with side runner in shell air inlet with side runner in impeller.
In order to realize object of the present invention further, impeller is provided with impeller flow deflecting cone facing to the axial sides of shell air inlet import side, impeller flow deflecting cone is placed in impeller axial sides by front end vertically to rear end, its rear end faces impeller axial sides, and connect with impeller axial sides, its front end edge axially points to shell air inlet import.
In order to realize object of the present invention further, impeller flow deflecting cone cross sectional rear end area is less than the impeller axial sides area of a circle, and blade passage is directly communicated with side runner in shell air inlet with side runner in impeller.
In order to realize object of the present invention further, impeller is provided with impeller flow deflecting cone facing to the axial sides of shell air inlet import side, impeller flow deflecting cone cross sectional rear end area is greater than the impeller axial sides area of a circle, and blade passage is not directly communicated with side runner in shell air inlet with side runner in impeller.
Convenient in order to describe, express accurately, first explain several correlation word at this:
The impeller side that impeller medial axis is pointed to or sidewall, cabinet sides or sidewall are called axial sides or axial side wall.
Impeller or body are axial rear side towards motor (or other power units) side, and opposite side corresponding is with it axial front side, and the rest may be inferred for axial rearward direction and the denotion of axial front.
Near impeller axle center place be impeller footpath anteriorly, its forward terminal is impeller radial front end, near impeller cylindrical place be impeller footpath posteriorly, its outer circular edge is impeller radial extremity (casing region of interest censure the rest may be inferred).
Vane rotary direction is circumference, forward vane rotary direction is for rotating front or week forwards, carry vane rotary direction be rear swivel or week rearward, blade forward side, vane rotary direction one is circumferential leading flank, side, vane rotary direction one is blade circumference trailing flank dorsad, and the rest may be inferred in the denotion of other region of interest of body.
Shell air inlet orientation is censured: shell air inlet import is front, and after shell air inlet exports and is, in shell air inlet, the rest may be inferred for the denotion of other orientation.
Blade radial import, the i.e. airflow inlet of blade radial front end formation.
Blade axial inlet, the i.e. airflow inlet of blade axial sides formation.As rear flow fan impeller negative pressure gap, synchronous rear flow fan impeller synchronous concurrent intake grill etc.
Front side of vane, the blade side that circumferentially forward impeller turns to is front side of vane, and blade circumference leading flank also can be claimed to be front side of vane.
Impeller channel refers to, side runner, blade passage in impeller; Blade is passage component, and blade passage is exactly blade itself.
The parts that gas after passage component refers to be processed and processing in body passes through, as parts such as shell air inlet, impeller, impeller intake grill, impeller exhaust outlet, impeller blade, leaf blade disk, internal side of shell runner, shell air outlet.
The working principle that circulation suction materiel fan adopts with old-fashioned centrifugal blower, centrifugal rear flow fan, centrifugal synchronous rear flow fan, centrifugal isolation shunting sucking-discharging material ventilator is far different, not use the suction function that inside impeller blade centrifugal force or impeller, air flue high velocity air produces to aspirate external substance, but use the suction function suction external substance of impeller radial outside internal side of shell runner high speed high-energy air-flow formation, be again the effect of borrowing internal side of shell runner kinetic energy energy, discharge body inspiration and through the material of processing.Owing to being the suction function and kinetic energy energy that utilize internal side of shell ring runner annular high speed high-energy air-flow to be formed, not only externally suction but also external ejected matter, says " circulation suction materiel fan " so give a name.
Annular internal side of shell runner air-flow (comprising side runner radial rear portion high velocity air in impeller outlet place, blade radial rear portion, impeller) flow velocity is higher, and suction capactity is stronger, suction better effects if.Meanwhile, rely on the suction function suction external substance of internal side of shell runner air-flow, can avoid polluting the collision friction of impeller, avoid the frictional loss to impeller, thus, the efficiency of blower fan is just high, and noise will be lower.
Directly utilize the suction function suction external substance of internal side of shell runner high speed high-energy air-flow, internal side of shell runner directly must be communicated with side runner in shell air inlet.And internal side of shell runner is directly communicated with side runner in shell air inlet, shell air inlet exit cross-sectional area must be greater than the impeller axial sides area of a circle, can form the passage led to the direct Liu An of internal side of shell runner by side runner in shell air inlet.So like this, external substance just can be made to be exported by shell air inlet import side runner, shell air inlet in shell air inlet, more directly be entered internal side of shell runner.
Shell air inlet can be cylindrical structure form, can be taper cone barrel structural type; But, no matter be cylinder cartridge type or circular cone cartridge type, its intake grill exit cross-section area must be greater than the impeller axial sides area of a circle, only in this way, the air-flow path that in shell air inlet, side runner is directly communicated with internal side of shell runner could be formed, impel the suction function of high velocity air in internal side of shell runner directly to aspirate the material being entered side runner in shell air inlet by shell air inlet import.
The shell air inlet of cylinder cartridge type, its intake grill import is equal with intake grill exit cross-sectional area, and comparatively speaking, shell air inlet import cross-section area is excessive, and its flow is also just excessive, so generally, does not adopt cylinder cartridge type shell air inlet.The import of circular cone cartridge type shell air inlet goes out young than shell air inlet, can according to the requirement of uninterrupted, make shell air inlet import more arbitrarily small than shell air inlet outlet, the import of circular cone cartridge type shell air inlet is flexible and changeable, so generally this circulation suction materiel fan all adopts circular cone cartridge type shell air inlet.
The present invention, shell air inlet outlet is greater than impeller axial cross section, namely shell air inlet outlet has covered impeller vertically completely, if blower fan adopts rear flow fan impeller or synchronous rear flow fan impeller, then shell air inlet is by by the suction function of internal side of shell runner and the negative pressure gap of impeller facing to the axial sides of shell air inlet import or the suction function suction external substance of synchronous concurrent intake grill; Can by the effect suction external substance of intake grill rotary centrifugal force in the middle of the suction function of internal side of shell runner and impeller.This structural type can ensure that the external draft large discharge of shell air inlet is large, but this structure can make to be sucked into external substance gouging abrasion pollute impeller, suction is afraid of that solid matter that is broken, that can pollute impeller does not generally adopt this structural type.
If blower fan adopts rear flow fan impeller, synchronous rear flow fan impeller, the old-fashioned centrifugal blower fan blade wheel of semi-open type of general single-wall structure form, if but intake grill in the middle of impeller is not anteriorly established in these impeller footpaths, do not establish impeller blade, namely anteriorly fully closing type leaf dish is established towards the axial sides of shell air inlet import in impeller footpath, namely impeller only posteriorly arranges side runner in blade and impeller in its footpath, and the radial posterior leaflet runner of such impeller and side runner in impeller are directly communicated with side runner in shell air inlet, during work, shell air inlet will rely on internal side of shell runner suction function, the radial posterior leaflet runner of impeller and impeller footpath be side runner suction function suction external substance in impeller posteriorly, impeller footpath posteriorly air-flow velocity is higher than the radial frontal airflow flow velocity of impeller, negative-pressure ward effect is large, thus the pumping action that shell air inlet is external and flow still can be very large.This structure, aspirate into external substance the collision friction of impeller is polluted light, can ensure that impeller operation is steady, long service life.
If draught fan impeller adopts rear flow fan impeller or synchronous rear flow fan impeller or old-fashioned centrifugal blower fan blade wheel, this several draught fan impeller does not establish intake grill in the middle of impeller facing to the whole axial sides of the axial side of shell air inlet import, do not establish impeller blade, namely the leaf blade disk of fully closing type is only established in this side whole, and namely in shell air inlet, side runner only follows internal side of shell flow passage.During work, shell air inlet is only by the suction function suction external substance of internal side of shell runner, this structural type, the pumping action that shell air inlet is external and flow can be less, but be sucked into external substance but do not contact not wear and tear and do not pollute impeller, can ensure to be sucked into external substance can not be subject to any injury, ensure the eternal smooth running of impeller, ensure longer service life.
Above-mentioned three kinds of structural types respectively have speciality, select arbitrarily according to actual needs.
Patent of invention " ZL201010586365.9 centrifugal isolation shunting sucking-discharging material blower fan " (calling the former in the following text) and the technology of the present invention of application before me have essential distinction.
The former shell air inlet place is provided with casing auxiliary air inlet mouth, and casing auxiliary air inlet mouth is made up of training wall inside auxiliary air inlet mouth sidewall and auxiliary air inlet mouth, and inside casing auxiliary air inlet mouth, the Way out of training wall outlet points to internal side of shell diffusion runner.
The shell air inlet outlet area of a circle of the present invention is greater than the impeller axial sides area of a circle, and in shell air inlet, side runner is directly communicated with the internal side of shell runner outside casing internal lobe wheel radial.
Although the former casing auxiliary air inlet mouth is all directly be communicated with internal side of shell runner with side runner in shell air inlet of the present invention, the structure of the two and action effect are far different.
The former casing auxiliary air inlet mouth is Double-layer clamp wall construction formula, be located at around shell air inlet, double wall link is established between double-deck double wall, in other words in casing auxiliary air inlet mouth runner, set out two structure members more, training wall and link thereof inside two structure members of this many setting and auxiliary air inlet mouth, all obstruction rubbing action can be played to the material of casing auxiliary air inlet mouth inspiration, the solid material large for the area large volume of inspiration all can play barrier effect, result in blockage, cause blower fan normally to work down; In other words, casing auxiliary air inlet mouth can not the large solid material (as paper, pieces of cloth, rope, fiber, plate material etc.) of suction area large volume, in addition, these two kinds of structure members of many places, during for auxiliary air inlet mouth suction powder particle, gas material, the frictional loss of formation and pollution level are especially serious, cause fan efficiency low, big energy-consuming, working life is short.
Shell air inlet of the present invention is only single layer wall cylinder (cylindrical drum, taper cone barrel) structural formula, namely any other parts are had in side runner in whole shell air inlet, without any obstacle, without any stop, can suction volume large size is large smoothly solid material; In other words suction powder, particle or gas material, frictional loss can be very little, and pollution level also can be very light, and fan efficiency can be impelled high, and power consumption is few, long service life.
According to comparative analysis, obviously, the casing auxiliary air inlet mouth of " centrifugal isolation shunting sucking-discharging material blower fan " and shell air inlet of the present invention are not the blower fan structure technology of same.
In order to obtain better suction effect, alleviate or avoid stained impeller, the present invention also arranges shell air inlet flow deflecting cone in shell air inlet, shell air inlet flow deflecting cone to be placed in shell air inlet in side runner by front end (serrated end) to rear end (expansion end) vertically, its rear end is vertically just to impeller axial sides, its front end edge axially points to shell air inlet import, the longitudinal outer side surface of intake grill flow deflecting cone is provided with flow deflecting cone link, and intake grill flow deflecting cone is connected with runner sidewall inside shell air inlet by flow deflecting cone link.
Intake grill flow deflecting cone axial rearward end (expansion end) cross circular section area can be equal to or greater than the impeller axial sides area of a circle, due to blocking of intake grill flow deflecting cone axial rearward end, impeller is not just directly communicated with side runner in shell air inlet the impeller channel (in the middle intake grill of impeller, impeller blade runner, impeller side runner) of the whole side of the axial sides of shell air inlet import.During work, shell air inlet can only rely on internal side of shell runner suction function suction external substance, aspirate into external substance do not contact not stained impeller.
Intake grill flow deflecting cone axial rearward end cross circular section area can be less than the impeller axial sides area of a circle, this structural type, intake grill flow deflecting cone only blocks impeller footpath impeller channel anteriorly, impeller footpath posteriorly runner is not blocked, and impeller footpath posteriorly impeller channel (in blade passage, impeller side runner) is directly communicated with shell air inlet.During work, shell air inlet relies on the impeller footpath posteriorly suction function of impeller channel and the suction function suction external substance of internal side of shell runner, the part external substance of suction does not enter impeller internal, not clogging impeller, but contact the radial back component (slightly stained) of stained impeller, this structural type, the external suction force of shell air inlet is large, aspiration is large, little to the external substance injury be sucked.
In order to obtain better suction effect, alleviate or avoid stained impeller, this technology can also arrange impeller flow deflecting cone in the axial sides of impeller facing to shell air inlet import side, impeller flow deflecting cone is placed in impeller axial sides by axial forward end (serrated end) vertically to axial rearward end (expansion end), its axial rearward end faces impeller axial sides, and connect with impeller axial sides, its axial forward end points to shell air inlet import vertically.
Impeller flow deflecting cone axial rearward end cross circular section area can be less than the impeller axial sides area of a circle of its correspondence, can be equal with the impeller axial sides area of a circle of its correspondence, can be larger than the impeller axial sides area of a circle of its correspondence.The impeller axial sides area of a circle hour of its correspondence of impeller flow deflecting cone axial rearward end cross circular section area ratio, in the radial posterior leaflet runner of impeller, impeller, side runner just directly can be communicated with side runner in shell air inlet.During work, shell air inlet will rely on the impeller footpath posteriorly suction function of runner and the suction function suction external substance of internal side of shell runner, and blower fan draft is large, and flow is large, the radial back component of impeller be sucked into extraneous material have slight impact, have slightly stained.When impeller flow deflecting cone axial rearward end cross circular section area is equal to or greater than the rachis axial sides area of a circle of its correspondence, impeller flow deflecting cone axial rearward end shelters from the impeller axial sides of its correspondence vertically comprehensively, and impeller channel cannot directly be communicated with shell air inlet.During work, shell air inlet only relies on the negative-pressure ward external substance of internal side of shell runner, whole wheel member be sucked into external substance do not contact, do not collide, can not produce stained, compare, blower fan draft is little, and flow is little.
No matter be that intake grill flow deflecting cone or impeller flow deflecting cone can make side runner or impeller axial front side space in shell air inlet avoid producing eddy current, avoid eddy current loss, therefore also just improve the total pressure efficiency of blower fan, save the energy.
Below in conjunction with drawings and Examples, the present invention is set forth in detail.
Accompanying drawing explanation
The first mode of execution structural representation of Fig. 1-the present invention.
The first mode of execution impeller channel structural representation of Fig. 2-the present invention.
Fig. 3-the second mode of execution structural representation of the present invention.
Fig. 4-the second mode of execution impeller channel structural representation of the present invention.
The third mode of execution structural representation of Fig. 5-the present invention.
The third mode of execution impeller channel structural representation of Fig. 6-the present invention.
Fig. 7-the present invention the 4th kind of mode of execution structural representation.
Fig. 8-the present invention the 5th kind of mode of execution structural representation.
Fig. 9-the present invention the 6th kind of mode of execution structural representation.
Figure 10-the present invention the 7th kind of mode of execution structural representation.
Accompanying drawing drawing illustrates:
1 casing, 2 shell air inlet, 3 shell air inlet imports, 4 shell air inlet outlets, side runner in 5 shell air inlet, 6 impellers, 7 impeller blades, side runner in 8 impellers, 9 internal side of shell runners, 10 shell air outlet, intake grill in the middle of 11 impellers, 12 leaf blade disk, intake grill on rear side of 13 casings, intake grill in the middle of on rear side of 14 impellers, 15 intake grill flow deflecting cones, 16 impeller flow deflecting cones, 17 intake grill flow deflecting cone links, 18 motors.
Embodiment
Embodiment 1, with reference to figure 1, Fig. 2, circulation suction materiel fan, include casing 1, taper cartridge type shell air inlet 2(shell air inlet 2 is exported 4 formed by side runner 5, shell air inlet in shell air inlet import 3, shell air inlet), impeller 6(impeller is provided with side runner 8 in the middle intake grill 11 of impeller, impeller blade 7, impeller), side runner 9 in casing internal lobe wheel radial outer casings, shell air outlet 10.Taper cartridge type shell air inlet 2 is placed in casing axial front side face by its axial forward end (serrated end) vertically to its axial rearward end (expansion end), shell air inlet 2 axial rearward end is vertically just to impeller 6, its axial rearward end cross circular section area is greater than impeller shaft to the leading flank area of a circle, shell air inlet 2 axial rearward end covers the whole front axial sides of impeller vertically, namely impeller blade 7 is covered, side runner 8 in impeller, intake grill 11 in the middle of impeller, the shell air inlet outlet 4 of taper cartridge type shell air inlet axial end is greater than axial sides before impeller, make shell air inlet export and cover impeller radial outside internal side of shell runner section space simultaneously, and be directly communicated with internal side of shell runner.This example is used for suction dusty gas and uses.
Because shell air inlet axial rearward end shell air inlet exports the impeller axial sides area of a circle that 4 cross circular section areas are greater than its correspondence, namely shell air inlet outlet 4 has covered whole impeller axial front side, covered internal side of shell runner 9 segment space of impeller radial outside, namely shell air inlet outlet 4 is directly communicated with intake grill 11 in the middle of side runner 8, impeller in internal side of shell runner 9, impeller blade runner, impeller.During work, shell air inlet 2 can rely on the effect of intake grill rotary centrifugal force in the middle of the suction function of side runner in internal side of shell runner, impeller blade, impeller and impeller to aspirate external substance simultaneously, vacuum force is large, suction force is strong, compressor flow is large, wherein do not contact not impacting impeller by the external substance of internal side of shell runner suction function suction, without frictional loss, so fan total efficiency is just high.
The various induced draught fan of this routine suitable for making, uses in order to suction dusty gas.
Embodiment 2, with reference to figure 3, Fig. 4, this example is substantially the same with example 1, difference is that impeller blade is not anteriorly established in this routine impeller footpath, do not establish intake grill in the middle of impeller, if be less than the leaf blade disk 12 of impeller shaft to leading flank, side runner 8 in impeller blade 7 and impeller is posteriorly established in impeller footpath, impeller footpath posteriorly impeller blade runner is directly communicated with side runner 5 in shell air inlet with side runner in impeller, and internal side of shell runner 9 is directly communicated with side runner 5 in shell air inlet.The impeller diameter of this routine impeller diameter ratio 1 is large.
This example uses in order to the solid material (as junk, branch leaf, shredded paper cloth waste, plastic bottle, plank wooden unit etc.) that suction bulk area is larger.
During work, shell air inlet 2 is by the suction function of side runner in impeller footpath posteriorly impeller blade runner and impeller, suction function by internal side of shell runner 9 aspirates extraneous solid matter, the extraneous solid material aspirated by internal side of shell runner suction function does not contact not impacting impeller, without friction,, there is mild wear at the extraneous solid material contact-impact impeller blade edge aspirated by the suction function of side runner 8 in impeller footpath posteriorly impeller blade runner and impeller, but not clogging impeller runner.
Because impeller diameter is large, posteriorly runner gas flow rate is high in impeller footpath, and negative pressure is large, and therefore its draft is just large, and the mass flow of suction is large.
The various suction materiel fan of this routine suitable for making uses.
Embodiment 3, and with reference to figure 5, Fig. 6, this example is substantially the same with example 1, and difference is that this routine impeller axial front side does not establish impeller blade, does not establish intake grill in the middle of impeller, does not establish side runner in impeller, and establish fully closing type frontal lobe blade disk 12; Impeller shaft establishes intake grill 14 in the middle of on rear side of impeller blade and impeller to rear side, and casing axially rear side establishes intake grill 13 on rear side of casing.
This example uses in order to the soft solid material (plastic pellicle, knitting wool, the rope made of hemp, cotton, clothing etc.) that suction bulk area is larger.
During work, the impeller shaft backward middle intake grill 14 of lateral lobe wheel passes through intake grill 13 inspiration gas on rear side of casing, high velocity air is processed into inside input impeller, this high velocity air is arranged in impeller radial outside internal side of shell flow passage, and produce negative pressure, shell air inlet 2 aspirates extraneous solid material by this suction function, aspirate into extraneous solid material do not contact not collide not hang and draw impeller, impeller is without wearing and tearing, and impeller is to material fanout free region, and material is to impeller fanout free region.
This technology, owing to only aspirating extraneous material by internal side of shell runner suction function, suction function is little, and flow is little, make up this shortcoming, during manufacture, strengthens impeller diameter.
This routine suitable for making various suction solid material blower fan uses.
Embodiment 4, with reference to figure 7, Fig. 4, this example is substantially the same with example 2, difference is this routine shell air inlet 2 is cylindrical structure formula, shell air inlet flow deflecting cone 15 is provided with in side runner in shell air inlet, shell air inlet flow deflecting cone to be placed in shell air inlet in side runner from front to back vertically, its rear end (expansion end) is vertically just to impeller axial front side, shell air inlet import 3 is pointed to vertically in its front end (serrated end), shell air inlet flow deflecting cone 15 is connected with runner sidewall inside shell air inlet by intake grill flow deflecting cone link 17, the impeller axial sides area of a circle of its correspondence of shell air inlet flow deflecting cone axial rearward end cross circular section area ratio is little, shell air inlet flow deflecting cone axial rearward end covers impeller footpath anteriorly, impeller is impelled to only have its footpath posteriorly impeller blade runner, in impeller, side runner is directly communicated with side runner in shell air inlet.
During work, shell air inlet 2 relies on the suction function of side runner in the radial posterior leaflet runner of internal side of shell runner 9 and impeller and impeller to aspirate extraneous material, the material of internal side of shell runner suction function suction is relied on not contact not impacting impeller, do not wear and tear impeller, rely on the solid material gentle touchdown impacting impeller of the suction function suction of side runner in the radial posterior leaflet runner of impeller and impeller, impeller has mild wear, solid material in impeller footpath posteriorly close to impeller outlet place, tilt through impeller outlet place impeller channel, can not result in blockage to impeller channel.
This example is suitable for suction bulk, tabular, granular solids material, because there being the extension of shell air inlet flow deflecting cone link 17 to draw, being not suitable for aspirating pieces of cloth, paper, fiber, film and so on and being afraid of to hang the solid material drawn.
Embodiment 5, with reference to figure 8, Fig. 6, this example is substantially the same with example 3, difference is provided with shell air inlet flow deflecting cone 15 in side runner in this routine shell air inlet, shell air inlet flow deflecting cone 15 to be placed in shell air inlet in side runner from front to back vertically, shell air inlet flow deflecting cone axial rearward end cross circular section area is greater than the axial sides area of a circle before impeller, namely shell air inlet flow deflecting cone axial rearward end shelters from the whole front axial sides of impeller vertically, the sideways impeller channel of impeller front axle is not directly communicated with side runner in shell air inlet, shell air inlet outlet is only directly communicated with internal side of shell runner 9.Shell air inlet flow deflecting cone by flow deflecting cone link with runner sidewall inside shell air inlet to connection, impeller shaft establishes intake grill 14 in the middle of on rear side of impeller to rear side, establishes intake grill 13 on rear side of casing on rear side of casing.
During work, impeller relies on intake grill 14 inspiration gas in the middle of on rear side of it to be processed into high velocity air, arranges in internal side of shell flow passage, produces suction function.Shell air inlet 2 only relies on the suction function of internal side of shell runner to aspirate extraneous material, aspirate into extraneous solid material do not contact not impacting impeller, impeller is without stained.
The same with example 4, this example be suitable for various plate-like, the granular body material of suction, is not suitable for the soft solid material that area that suction fearness extension draws is large.
Embodiment 6, with reference to figure 9, Fig. 4, this example is substantially the same with example 2, difference is this routine intake grill is cylindrical structure formula, impeller axial front side is provided with impeller flow deflecting cone 16, impeller flow deflecting cone 16 is placed in impeller axial front side from front to back vertically, and its axial rearward end is just connected, with impeller together rotary motion with impeller to impeller axial front side.Impeller flow deflecting cone 16 axial rearward end shelters from impeller footpath anteriorly vertically, the radial posterior leaflet runner of impeller is directly communicated with side runner 5 in shell air inlet with side runner in impeller 8, and shell air inlet outlet 4 is directly communicated with impeller radial outside internal side of shell runner.
This example is with example 2, and during work, shell air inlet relies on the suction function of side runner in internal side of shell runner 9 and the radial posterior leaflet runner of impeller and impeller to aspirate extraneous solid matter, the solid material not clogging impeller of suction, light abrasion, draft is large, flow is large, and efficiency is high.
The various solid material of the suitable suction of this example uses.
Embodiment 7, with reference to Figure 10, Fig. 6, this example is substantially the same with example 3, difference is that this routine impeller axial front side is provided with impeller flow deflecting cone 16, impeller flow deflecting cone 16 is placed in impeller axial front side from front to back vertically and connects with impeller, with impeller together rotary motion, impeller flow deflecting cone 16 axial rearward end shelters from the whole front axial sides of impeller vertically, shelters from the whole impeller channel of impeller axial front side.All impeller channels of impeller axial front side are not directly communicated with side runner 5 in shell air inlet, and in shell air inlet, side runner 5 is communicated with internal side of shell runner 9.
During work, the impeller shaft backward middle intake grill 14 of lateral lobe wheel passes through intake grill 13 inspiration gas on rear side of casing, high velocity air is processed into inside input impeller, this high velocity air is arranged in impeller radial outside internal side of shell runner runner, produce negative pressure, because impeller flow deflecting cone has blocked all impeller channels of impeller axial front side, impeller channel is directly communicated with shell air inlet export department, shell air inlet exports 5 and is communicated with internal side of shell runner 9, so at this moment side runner can only rely on the suction function of internal side of shell runner to aspirate extraneous material in shell air inlet.
This structural type, comparatively speaking, draft weakness, flow point, but aspirate into external substance do not contact not impacting impeller, impeller without stained, impeller can long time running steady, long service life.
With example 3, this example is suitable manufactures the use of various suction materiel fan.
Claims (10)
1. circulation suction materiel fan, include casing (1), shell air inlet (2), shell air inlet import (3), shell air inlet outlet (4), side runner (5) in shell air inlet, impeller (6), impeller blade (7), side runner (8) in impeller, internal side of shell runner (9), shell air outlet (10), intake grill (11) in the middle of impeller, leaf blade disk (12), it is characterized in that, shell air inlet outlet (4) area of a circle is greater than impeller (6) the axial sides area of a circle, in shell air inlet, side runner (5) is directly communicated with the internal side of shell runner (9) outside casing internal lobe wheel radial.
2. circulation suction materiel fan according to claim 1, it is characterized in that, impeller blade is not anteriorly established in impeller footpath, do not establish intake grill in the middle of impeller, side runner (8) in impeller blade (7) and impeller is posteriorly established in impeller footpath, and the radial posterior leaflet runner of impeller is directly communicated with side runner in shell air inlet (5) with side runner (8) in impeller footpath posteriorly impeller.
3. circulation suction materiel fan according to claim 1, is characterized in that, the whole impeller blade runner of impeller is directly communicated with side runner in shell air inlet (5) with side runner in impeller (8).
4. circulation suction materiel fan according to claim 1, is characterized in that, the whole impeller blade runner of impeller is not directly communicated with side runner (5) in shell air inlet with side runner in impeller.
5. circulation suction materiel fan according to claim 1, it is characterized in that, intake grill flow deflecting cone (15) is established in side runner in shell air inlet, intake grill flow deflecting cone (15) rear end is vertically just to impeller (6) axial sides, intake grill flow deflecting cone (15) front end edge axially points to shell air inlet import (3), and intake grill flow deflecting cone (15) is connected with side runner in shell air inlet (5) sidewall by flow deflecting cone connecting sheet (17).
6. circulation suction materiel fan according to claim 5, it is characterized in that, intake grill flow deflecting cone (15) cross sectional rear end area in shell air inlet in side runner is greater than the impeller axial sides area of a circle, and impeller blade runner is not directly communicated with side runner in shell air inlet (5) with side runner in impeller (8).
7. circulation suction materiel fan according to claim 1, it is characterized in that, intake grill flow deflecting cone (15) is provided with in side runner in shell air inlet, intake grill flow deflecting cone (15) rear end is vertically just to impeller (6) axial sides, intake grill flow deflecting cone (15) cross sectional rear end area is less than the impeller axial sides area of a circle, and the radial posterior leaflet runner of impeller is directly communicated with side runner in shell air inlet (5) with side runner in impeller (8).
8. circulation suction materiel fan according to claim 1, it is characterized in that, impeller is provided with impeller flow deflecting cone (16) facing to the axial sides of shell air inlet import (3) side, impeller flow deflecting cone (16) is placed in impeller axial sides by front end vertically to rear end, its rear end faces impeller axial sides, and connect with impeller axial sides, its front end edge axially points to shell air inlet import (3).
9. circulation suction materiel fan according to claim 8, is characterized in that, impeller flow deflecting cone (16) cross sectional rear end area is less than the impeller axial sides area of a circle, and blade passage is directly communicated with side runner in shell air inlet with side runner in impeller.
10. circulation suction materiel fan according to claim 1, it is characterized in that, impeller is provided with impeller flow deflecting cone (16) facing to the axial sides of shell air inlet import (3) side, impeller flow deflecting cone (16) cross sectional rear end area is greater than the impeller axial sides area of a circle, and blade passage is not directly communicated with side runner in shell air inlet with side runner in impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182811.2A CN104832439A (en) | 2015-04-17 | 2015-04-17 | Annular-flow material-suction/discharge fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182811.2A CN104832439A (en) | 2015-04-17 | 2015-04-17 | Annular-flow material-suction/discharge fan |
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| CN104832439A true CN104832439A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510182811.2A Pending CN104832439A (en) | 2015-04-17 | 2015-04-17 | Annular-flow material-suction/discharge fan |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108438909A (en) * | 2018-04-03 | 2018-08-24 | 广州市胡氏标签印刷有限公司 | A kind of conveying device for sticky film, stationery particle |
| CN108678997A (en) * | 2018-07-03 | 2018-10-19 | 满洲里达赉湖热电有限公司 | Unilateral side support centrifugal blower entrance constant-current stabilizer |
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