CN108916077A - Air pressing type cross flow fan - Google Patents
Air pressing type cross flow fan Download PDFInfo
- Publication number
- CN108916077A CN108916077A CN201810779638.8A CN201810779638A CN108916077A CN 108916077 A CN108916077 A CN 108916077A CN 201810779638 A CN201810779638 A CN 201810779638A CN 108916077 A CN108916077 A CN 108916077A
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- China
- Prior art keywords
- plate
- impeller
- end plate
- diffuser
- air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention is a kind of air pressing type cross flow fan, is related to a kind of cross flow fan, including support component, diffuser, wheel member.When the cross flow fan is run, the impeller of motor-driven impeller component rotates, air-flow enters the gap passage of diffuser after impeller, air-flow is accelerated in the flow process through impeller, then air-flow slows down for the first time in the gap passage of diffuser and is pressurized, and the kinetic energy that impeller passes to air-flow is changed into potential energy, air-flow enters the spiral case Inner chamber of support component, air-flow slows down again in spiral case Inner chamber to be pressurized, and high pressure draught is generated.The cross flow fan has the advantages that output gas flow pressure is larger, efficiency is higher.
Description
Technical field
The present invention is a kind of air pressing type cross flow fan, is related to a kind of cross flow fan, has diffuser more particularly to one kind
Cross flow fan.
Background technique
Common blower type has axial flow blower, cross flow fan, centrifugal blower in household appliances.Its typical application product
Example is respectively, using the vertical fan of axial flow blower, using the kitchen ventilator of centrifugal blower, using the air conditioner chamber of cross flow fan
Interior machine.The characteristics of axial flow blower is that flow is larger, pressure is lower, noise is larger.The structure of axial flow blower is simple.
The characteristics of cross flow fan is that moderate flow, moderate pressure, noise are smaller.Cross flow fan axial length is unrestricted,
Air outlet air-flow along cross flow fan axial distribution uniform.Compared with axial flow blower, the air-flow of cross flow fan runs through impeller
Air-flow can be transported to larger distance under low noise conditions by the effect of blade power twice by flowing, air-flow.Cross flow fan
Air-flow force to turn back in impeller, therefore the pressure loss is larger, efficiency is lower.Cross-flow fan impeller uses forward-type blade.
The characteristics of centrifugal blower is that flow is smaller, pressure is higher, noise is smaller.The air inlet of centrifugal blower is along centrifugation wind
The axial arrangement of machine, therefore centrifugal blower axial length is restricted.Centrifugal blower is added air-flow using high-speed rotating impeller
Speed, air-flow slow down in the spiral case inner cavity of centrifugal blower and change flow direction, and kinetic energy is made to be converted into potential energy, generate high pressure draught.Centrifugation
Fan efficiency is higher.Centrifugal blower fan blade wheel has forward-type blade, radial vane, backward type blade three types.
In conclusion the pressure of cross flow fan is up for improving.Applied to small size gas turbine centrifugal-flow compressor by
Air intake duct, impeller, diffuser, outlet spiral case composition.Diffuser generally uses vane type.Air-flow imports leaf by air intake duct first
Wheel, air-flow are accelerated by impeller blade, then slow down in gap passage of the air-flow between diffuser vane, impeller blade is transmitted
Potential energy is converted into the kinetic energy of air-flow.Centrifugal-flow compressor is compared with centrifugal blower, more diffusers, impeller blade and expands
There is relative motion between depressor blade, air-flow slows down pressurization in the gap passage between diffuser vane, makes centrifugal calm the anger
The stream pressure of machine output is far longer than the stream pressure of centrifugal blower output.If the air-flow of centrifugal-flow compressor in diffusion
Slow down in gap passage between device blade pressurization technology be applied to cross flow fan, then can be improved cross flow fan output gas flow
Pressure.
Summary of the invention
The purpose of the present invention is overcoming the disadvantage that the common cross flow fan pressure loss is larger, efficiency is lower, provide a kind of defeated
Stream pressure is larger out, the higher air pressing type cross flow fan of efficiency.Embodiment of the present invention is as follows：
The cross flow fan includes support component, diffuser, wheel member.Diffuser is mounted on support component inner cavity, impeller portion
Part is mounted on diffuser inner cavity, and motor is mounted on support component axial direction one end.When the cross flow fan is run, motor drive
The impeller of wheel member rotates, and the air-flow entered the wind in Inner chamber enters impeller Inner from the blade passage of the impeller close to air inlet Inner chamber
Chamber, the air-flow in impeller Inner chamber enter the gap passage of diffuser from the blade passage of the impeller close to spiral case Inner chamber, and air-flow exists
It is accelerated in the flow process of impeller, then air-flow slows down pressurization in the gap passage of diffuser, and impeller is passed to
The kinetic energy of air-flow is changed into potential energy, and air-flow enters the spiral case Inner chamber of support component, and air-flow slows down again in spiral case Inner chamber to be pressurized,
Generate high pressure draught.
The diffuser connecting plate of several Ω shapes, the song of two neighboring diffuser connecting plate is axially distributed in diffuser
There are several diffuser vanes between line segment part, diffuser vane is forward-type multiple fins shaped blade, two neighboring diffuser leaf
It is gap passage between piece.It is installing web plate two, installation muscle respectively between the straight length portion of two neighboring diffuser connecting plate
Plate one, installing web plate two, installing web plate one have several bolts hole, installing web plate one and an adjacent diffuser vane respectively
Between be closed guard.
Support component includes base, side plate one, axle sleeve one, side plate two, axle sleeve two.Axle sleeve one, axle sleeve two are cylindrical, axis
It is sleeve central bore among set one, two axial end face of axle sleeve.
Base axial ends is base end plate one, base end plate two respectively.Base end plate one is in rectangle, in base end plate one
Between be pilot hole, have several bolts hole around base end plate one.Base end plate two is in rectangle, is assembly among base end plate two
There are several bolts hole in hole around base end plate two.It is spiral case plate among base, spiral case plate top half cross sectional shape is spiral
Line or involute, spiral case plate lower half portion cross sectional shape are the tangent line of helix or the tangent line of involute.Spiral case plate lower end with
One upper end of front panel links together, and spiral case plate upper end links together with fixed two right side one end of gusset, and fixed gusset two is left
Side one end links together with squab panel lower end.Two lower end of volute tongue plate links together with one left side one end of volute tongue plate, volute tongue plate
Two sections are arc-shaped, and the angle between volute tongue plate two and volute tongue plate one is at an acute angle, one right side one end of volute tongue plate and front panel two
Lower end links together, and two upper end of volute tongue plate links together with fixed one left side one end of gusset.Fixed gusset two, fixed gusset
One has several bolts hole respectively.Squab panel, fixed gusset two, fixed gusset one, spiral case plate, front panel one, front panel two, snail
Hyoplastron one, volute tongue plate two both ends link together respectively with base end plate one, two axially inner side of base end plate.
The cross flow fan assemble when, the curved section of diffuser be partially installed on base spiral case plate and volute tongue plate two it
Between, wheel member passes through the pilot hole of base end plate one or the pilot hole across base end plate two, and wheel member is mounted on
Diffuser inner cavity.Spiral case plate, volute tongue plate two, base end plate one, constitutes semi-enclosed spiral case between base end plate two at volute tongue plate one
Inner chamber.Spiral case Inner chamber is air outlet close to one end of front panel one, front panel two.Squab panel, fixed gusset two, volute tongue plate two,
Volute tongue plate one, base end plate one, constitutes semi-enclosed air inlet Inner chamber between base end plate two at front panel two.It is close to enter the wind Inner chamber
Squab panel, front panel two one end be air inlet.
Side plate one is in rectangle, has the side plate boss one of annular among the axial one end of side plate one, is side among side plate boss one
There is axle sleeve mounting groove one in board shaft hole among the axial other end of side plate one, and axle sleeve one is mounted in the axle sleeve mounting groove one of side plate one,
There are several bolts hole around side plate one.Support component is each passed through several bolts the bolt hole of side plate one in assembly
With the bolt hole of the base end plate one of base, side plate one is made to be mounted on the axially external surface of the base end plate one of base.Side plate
Two be in rectangle, has the side plate boss two of annular among the axial one end of side plate two, is side plate axis hole, side plate two among side plate boss two
There is axle sleeve mounting groove two among the axial other end, axle sleeve two is mounted in the axle sleeve mounting groove two of side plate two, is had around side plate two
Several bolts hole.Support component is each passed through several bolts the bolt hole of side plate two and the base of base in assembly
The bolt hole of end plate two makes side plate two be mounted on the axially external surface of the base end plate two of base.
Wheel member includes impeller, impeller end plate two, space washer two, shaft two, shaft one, space washer one, impeller
End plate one.Shaft one, shaft two are cylindrical.Space washer one, space washer two in a ring, space washer one, space washer
It is washer center hole among two axial end faces.
Impeller both ends are impeller end ring one, impeller end ring two respectively, are had between impeller end ring one and impeller end ring two several
A impeller connection ring, between two impeller connection rings between adjacent impeller end ring one and impeller connection ring, adjacent, adjacent
Impeller connection ring and impeller end ring two between have several impeller blades, impeller blade is forward-type multiple fins shaped blade, adjacent
It is blade passage between two impeller blades.
One radial outside of impeller end plate is successively the end plate shaft shoulder one, end plate boss one, among one axial end face of impeller end plate
It is end plate axis hole one, one radially-outer surface of end plate boss has radial internal thread hole.Two radial outside of impeller end plate is successively end
Board shaft shoulder two, end plate boss two are end plate axis holes two among two axial end face of impeller end plate, and two radially-outer surface of end plate boss has
Radial internal thread hole.
For wheel member in assembly, one diameter of impeller end ring that the end plate shaft shoulder one of impeller end plate one is welded on impeller is inside
Side is mounted on one one end of shaft in the end plate axis hole one of impeller end plate one, screw is mounted on the internal screw thread of impeller end plate one
Kong Zhong is fixed together shaft one with impeller end plate one, and the other end of shaft one is made to be located at impeller end plate one
It is axially external, the washer center hole of space washer one is mounted on the radial outside of shaft one, and make one left side of space washer
End face contacts with one right end face of impeller end plate and is installed together.The end plate shaft shoulder two of impeller end plate two is welded on the leaf of impeller
Two radially inner side of end ring is taken turns, two one end of shaft is mounted in the end plate axis hole two of impeller end plate two, screw is mounted on impeller
It in the internal thread hole of end plate two, is fixed together shaft two with impeller end plate two, and makes the other end position of shaft two
In the axially external of impeller end plate two, the washer center hole of space washer two is mounted on the radial outside of shaft two, and made
Two right end face of space washer is contacted with two left end face of impeller end plate and is installed together.
The cross flow fan is partially installed on the curved section of diffuser the spiral case plate and volute tongue plate two of base in assembly
Between, and the installing web plate of diffuser two is mounted on two upper surface of fixation gusset of base, the installing web plate of diffuser
One is mounted on one upper surface of fixation gusset of base.Several bolts are each passed through the bolt hole of the installing web plate two of diffuser
With the bolt hole of the fixation gusset two of base, several bolts are each passed through the bolt hole and machine of the installing web plate one of diffuser
The bolt hole of the fixation gusset one of seat, is fixed together diffuser with base.Wheel member is passed through base end plate one
Pilot hole or pilot hole across base end plate two, wheel member is mounted on diffuser inner cavity.Keep one diameter of shaft outside
Surface middle position is mounted in the sleeve central bore of axle sleeve one, and makes side of the axially external one end of shaft one across side plate one
Board shaft hole makes the axially external one end of shaft one be located at side plate one axially external.Two radially-outer surface middle position of shaft is installed
In the sleeve central bore of axle sleeve two, and the axially external one end of shaft two is made to pass through the side plate axis hole of side plate two, makes shaft two
It is axially external that axially external one end is located at side plate two.The shaft of motor is linked together with shaft one, alternatively, motor
Shaft link together with shaft two.
The cross flow fan operational process is：
When the cross flow fan is run, motor drives impeller to revolve along impeller direction of rotation by shaft one, impeller end plate one
Turn, alternatively, motor drives impeller to rotate along impeller direction of rotation by shaft two, impeller end plate two.The impeller leaf of impeller
There is relative motion between piece and the diffuser vane of diffuser.Air-flow enters air inlet Inner chamber from air inlet, enters the wind the gas in Inner chamber
It flows from the blade passage of the impeller close to air inlet Inner chamber and enters impeller Inner chamber, the air-flow in impeller Inner chamber is from close to spiral case Inner chamber
The blade passage of impeller enters in the gap passage of diffuser, and air-flow is accelerated in the flow process through impeller, then gas
Stream slows down in the gap passage of diffuser to be pressurized, and the kinetic energy that impeller passes to air-flow is changed into potential energy, impeller blade and expansion
Depressor blade carries out first time pressurization to air-flow, and air-flow enters the spiral case Inner chamber of support component, and the sectional area of spiral case Inner chamber is gradually
Increase, air-flow slows down pressurization again in spiral case Inner chamber, and the air-flow in spiral case Inner chamber is along air outlet airflow direction from air outlet
Discharge.Closed guard prevents the air-flow in blade passage from being back to air inlet Inner chamber under the influence of centrifugal force.
When the cross flow fan is run, the impeller rotation of motor-driven impeller component, air-flow enters expansion after running through impeller
The gap passage of depressor, air-flow are accelerated in the flow process through impeller, and then air-flow is in the gap passage of diffuser
Slow down for the first time and be pressurized, the kinetic energy that impeller passes to air-flow is changed into potential energy, air-flow enters the spiral case Inner chamber of support component, gas
Stream slows down again in spiral case Inner chamber to be pressurized, and high pressure draught is generated.The cross flow fan larger, efficiency with output gas flow pressure
Higher advantage.
Detailed description of the invention
Fig. 1 is the axonometric drawing of the cross flow fan.
Fig. 2 is the isometric cutaway view of the cross flow fan.Along axis cutting.
Fig. 3 is the isometric cutaway view that base, diffuser are installed together.
Fig. 4 is the axonometric drawing of diffuser.
Fig. 5 is the isometric cutaway view of the cross flow fan.Axially section cutting.
Fig. 6 is the isometric cutaway view of base.
Fig. 7 is the isometric cutaway view of diffuser.
Fig. 8 is the axonometric drawing of diffuser.
Fig. 9 is the isometric cutaway view that side plate two, axle sleeve two are installed together.
Figure 10 is the isometric cutaway view that side plate one, axle sleeve one are installed together.
Figure 11 is the isometric cutaway view of wheel member.
Figure 12 is the axonometric drawing of impeller.
Figure 13 is the isometric cutaway view that impeller end plate two, space washer two, shaft two are installed together.
Figure 14 is the isometric cutaway view that impeller end plate one, space washer one, shaft one are installed together.
Figure 15 is the isometric cutaway view of impeller end plate two.
Figure 16 is the isometric cutaway view of impeller end plate one.
Air flow path schematic diagram when Figure 17 is cross flow fan operation.
Base 1, diffuser 2, impeller 3, impeller end plate 24, space washer 25, axle sleeve 26, shaft two are labeled in figure
7, side plate 28, screw 9, bolt hole 10, air inlet airflow direction 11, air inlet 12, shaft 1, axle sleeve 1, space washer
One 15, side plate 1, impeller end plate 1, air outlet 18, air outlet airflow direction 19, front panel 1, volute tongue plate 1, snail
It is hyoplastron 2 22, spiral case plate 23, base end plate 2 24, pilot hole 25, squab panel 26, fixed gusset 2 27, base end plate 1, preceding
Coaming plate 2 29, diffuser connecting plate 31, installing web plate 2 32, installing web plate 1, closed guard 34, expands fixed gusset 1
Depressor blade 35, gap passage 36, side plate boss 2 37, side plate boss 1, blade passage 39, impeller end ring 2 40, impeller
Blade 41, impeller connection ring 42, impeller end ring 1, end plate axis hole 2 44, internal thread hole 45, spiral case Inner chamber 46, air flow path
47, Inner chamber 48, impeller direction of rotation 49, end plate boss 2 50, the end plate shaft shoulder 2 51, end plate axis hole 1, the end plate shaft shoulder are entered the wind
One 53, end plate boss 1, impeller Inner chamber 55.
Specific embodiment
The present invention is further discussed below with reference to the accompanying drawing.
Referring to Fig.1, Fig. 2, Figure 17, the cross flow fan include support component, diffuser 2, wheel member.Diffuser 2 is pacified
Mounted in support component inner cavity, wheel member is mounted on 2 inner cavity of diffuser, and motor is mounted on support component axial direction one end.It is described
When cross flow fan is run, the impeller 3 of motor-driven impeller component rotates, and enters the wind the air-flow in Inner chamber 48 from close to air inlet Inner chamber
The blade passage 39 of 48 impeller 3 enters impeller Inner chamber 55, impeller 3 of the air-flow in impeller Inner chamber 55 from close spiral case Inner chamber 46
Blade passage 39 enter the gap passage 36 of diffuser 2, air-flow is accelerated in the flow process through impeller 3, then gas
Stream slows down in the gap passage 36 of diffuser 2 to be pressurized, and the kinetic energy that impeller 3 passes to air-flow is changed into potential energy, air-flow enters
The spiral case Inner chamber 46 of support component, air-flow slows down again in spiral case Inner chamber 46 to be pressurized, and generates high pressure draught.
Referring to figs. 1 to Figure 16, diffuser 2 is axially distributed with the diffuser connecting plate 31 of several Ω shapes, and adjacent two
There are several diffuser vanes 35 between the curved section part of a diffuser connecting plate 31, diffuser vane 35 is forward-type multiple wing
Shape blade is gap passage 36 between two neighboring diffuser vane 35.The straightway portion of two neighboring diffuser connecting plate 31
/ it is installing web plate 2 32, installing web plate 1 respectively, installing web plate 2 32, installing web plate 1 have several spiral shells respectively
Keyhole 10 is closed guard 34 between installing web plate 1 and an adjacent diffuser vane 35.
Support component includes base 1, side plate 1, axle sleeve 1, side plate 28, axle sleeve 26.Axle sleeve 1, axle sleeve 26
It is cylindrical, it is sleeve central bore among axle sleeve 1,26 axial end face of axle sleeve.
1 axial ends of base is base end plate 1, base end plate 2 24 respectively.Base end plate 1 is in rectangle, base
It is pilot hole 25 among end plate 1, there are several bolts hole 10 around base end plate 1.Base end plate 2 24 is in rectangle, machine
It is pilot hole 25 among seat end plate 2 24, there are several bolts hole 10 around base end plate 2 24.It is spiral case plate among base 1
23,23 top half cross sectional shape of spiral case plate is helix or involute, and 23 lower half portion cross sectional shape of spiral case plate is helix
Tangent line or involute tangent line.23 lower end of spiral case plate links together with one 20 upper end of front panel, 23 upper end of spiral case plate with
Fixed 2 27 right side one end of gusset links together, and fixed 2 27 left side one end of gusset links together with 26 lower end of squab panel.
2 22 lower end of volute tongue plate links together with one 21 left side one end of volute tongue plate, and 2 22 section of volute tongue plate is arc-shaped, volute tongue plate two
Angle between 22 and volute tongue plate 1 is at an acute angle, and one 21 right side one end of volute tongue plate links together with 2 29 lower end of front panel,
2 22 upper end of volute tongue plate links together with fixed one 30 left side one end of gusset.Fixed gusset 2 27, fixed gusset 1 are distinguished
There are several bolts hole 10.Squab panel 26, fixed gusset 2 27, fixed gusset 1, spiral case plate 23, front panel 1, front wall
Plate 2 29, volute tongue plate 1, volute tongue plate 2 22 both ends respectively with base end plate 1,2 24 axially inner side of base end plate
It links together.
When the cross flow fan assembles, the curved section of diffuser 2 is partially installed on the spiral case plate 23 and volute tongue plate of base 1
Between 2 22, wheel member passes through the pilot hole 25 of base end plate 1 or the pilot hole 25 across base end plate 2 24,
Wheel member is mounted on 2 inner cavity of diffuser.Spiral case plate 23, volute tongue plate 1, volute tongue plate 2 22, base end plate 1, base end
Semi-enclosed spiral case Inner chamber 46 is constituted between plate 2 24.Spiral case Inner chamber 46 is close to one end of front panel 1, front panel 2 29
Air outlet 18.Squab panel 26, fixed gusset 2 27, volute tongue plate 2 22, volute tongue plate 1, front panel 2 29, base end plate 1,
Semi-enclosed air inlet Inner chamber 48 is constituted between base end plate 2 24.Enter the wind Inner chamber 48 close to squab panel 26, front panel 2 29 one
End is air inlet 12.
Side plate 1 is in rectangle, there is the side plate boss 1 of annular, side plate boss 1 among the axial one end of side plate 1
Centre is side plate axis hole, has axle sleeve mounting groove one among the axial other end of side plate 1, axle sleeve 1 is mounted on side plate 1
In axle sleeve mounting groove one, there are several bolts hole 10 around side plate 1.Support component distinguishes several bolts in assembly
Across the bolt hole 10 of the base end plate 1 of the bolt hole 10 and base 1 of side plate 1, side plate 1 is made to be mounted on base 1
The axially external surface of base end plate 1.Side plate 28 is in rectangle, there is the side plate boss of annular among the axial one end of side plate 28
2 37, it is side plate axis hole among side plate boss 2 37, has axle sleeve mounting groove two among the axial other end of side plate 28, axle sleeve 26 is pacified
In the axle sleeve mounting groove two of side plate 28, there are several bolts hole 10 around side plate 28.Support component assembly when, if
Dry bolt is each passed through the bolt hole 10 of the bolt hole 10 of side plate 28 and the base end plate 2 24 of base 1, pacifies side plate 28
Mounted in the axially external surface of the base end plate 2 24 of base 1.
Wheel member includes impeller 3, impeller end plate 24, space washer 25, shaft 27, shaft 1, space washer one
15, impeller end plate 1.Shaft 1, shaft 27 are cylindrical.Space washer 1, space washer 25 in a ring, position
It is washer center hole among washer 1,25 axial end face of space washer.
3 both ends of impeller are impeller end ring 1, impeller end ring 2 40 respectively, impeller end ring 1 and impeller end ring 2 40 it
Between have several impeller connection rings 42, two impellers between adjacent impeller end ring 1 and impeller connection ring 42, adjacent
There are several impeller blades 41, impeller blade between impeller connection ring 42 and impeller end ring 2 40 between connection ring 42, adjacent
41 be forward-type multiple fins shaped blade, is blade passage 39 between two neighboring impeller blade 41.
One 17 radial outside of impeller end plate is successively the end plate shaft shoulder 1, end plate boss 1, and impeller end plate 1 is axial
It is end plate axis hole 1 among end face, one 54 radially-outer surface of end plate boss has radial internal thread hole 45.24 diameter of impeller end plate
It is successively the end plate shaft shoulder 2 51, end plate boss 2 50 outward, is end plate axis hole 2 44 among 24 axial end face of impeller end plate,
2 50 radially-outer surface of end plate boss has radial internal thread hole 45.
Wheel member is welded on the end plate shaft shoulder 1 of impeller end plate 1 the impeller end ring one of impeller 3 in assembly
43 radially inner sides, one 13 one end of shaft are mounted in the end plate axis hole 1 of impeller end plate 1, and screw 9 is mounted on impeller
It in the internal thread hole 45 of end plate 1, is fixed together shaft 1 with impeller end plate 1, and makes shaft 1
The other end be located at the axially external of impeller end plate 1, the washer center hole of space washer 1 is mounted on shaft 1
Radial outside, and contact one 15 left end face of space washer with one 17 right end face of impeller end plate and be installed together.Leaf
The end plate shaft shoulder 2 51 of wheel end plate 24 is welded on 2 40 radially inner side of impeller end ring of impeller 3, and 27 one end of shaft is mounted on
In the end plate axis hole 2 44 of impeller end plate 24, screw 9 is mounted in the internal thread hole 45 of impeller end plate 24, makes shaft 27
It is fixed together with impeller end plate 24, and the other end of shaft 27 is made to be located at the axially external of impeller end plate 24,
The washer center hole of space washer 25 is mounted on the radial outside of shaft 27, and makes 25 right end face of space washer and leaf
Wheel 24 left end face of end plate contact is installed together.
The cross flow fan is partially installed on the curved section of diffuser 2 the spiral case plate 23 and volute tongue of base 1 in assembly
Between plate 2 22, and the installing web plate of diffuser 22 32 is mounted on 2 27 upper surface of fixation gusset of base 1, diffusion
The installing web plate 1 of device 2 is mounted on one 30 upper surface of fixation gusset of base 1.Several bolts are each passed through diffuser 2
Installing web plate 2 32 bolt hole 10 and base 1 fixation gusset 2 27 bolt hole 10, several bolts are each passed through
The bolt hole 10 of the fixation gusset 1 of the bolt hole 10 and base 1 of the installing web plate 1 of diffuser 2, makes diffuser 2 and machine
Seat 1 is fixed together.Wheel member is passed through the pilot hole 25 of base end plate 1 or across base end plate 2 24
Wheel member is mounted on 2 inner cavity of diffuser by pilot hole 25.One 13 radially-outer surface middle position of shaft is set to be mounted on axle sleeve one
In 14 sleeve central bore, and the axially external one end of shaft 1 is made to pass through the side plate axis hole of side plate 1, makes shaft 1
It is axially external that axially external one end is located at side plate 1.27 radially-outer surface middle position of shaft is set to be mounted on the axis of axle sleeve 26
It covers in centre bore, and the axially external one end of shaft 27 is made to pass through the side plate axis hole of side plate 28, make shaft 27 axially external one
It is axially external that end is located at side plate 28.The shaft of motor is linked together with shaft 1, alternatively, the shaft of motor
It links together with shaft 27.
Referring to Fig.1, Fig. 2, Figure 17, the cross flow fan operational process are：
When the cross flow fan is run, motor drives impeller 3 along impeller rotation side by shaft 1, impeller end plate 1
To 49 rotations, alternatively, motor drives impeller 3 to rotate along impeller direction of rotation 49 by shaft 27, impeller end plate 24.Leaf
There is relative motion between the impeller blade 41 of wheel 3 and the diffuser vane 35 of diffuser 2.Air-flow enters air inlet Inner from air inlet 12
Chamber 48, the air-flow entered the wind in Inner chamber 48 enter impeller Inner chamber 55, impeller from the blade passage 39 of the impeller 3 close to air inlet Inner chamber 48
Air-flow in Inner chamber 55 enters in the gap passage 36 of diffuser 2 from the blade passage 39 of the impeller 3 close to spiral case Inner chamber 46, gas
It flows and is accelerated in the flow process through impeller 3, then air-flow slows down pressurization in the gap passage 36 of diffuser 2, leaf
The kinetic energy that wheel 3 passes to air-flow is changed into potential energy, impeller blade 41 and diffuser vane 35 and carries out first time pressurization, gas to air-flow
Stream enters the spiral case Inner chamber 46 of support component, and the sectional area of spiral case Inner chamber 46 is gradually increased, air-flow in spiral case Inner chamber 46 again
Slow down and be pressurized, the air-flow in spiral case Inner chamber 46 is discharged along air outlet airflow direction 19 from air outlet 18.Closed guard 34 prevents
Air-flow in blade passage 39 is back to air inlet Inner chamber 48 under the influence of centrifugal force.
When the cross flow fan is run, the impeller 3 of motor-driven impeller component rotates, and air-flow enters after running through impeller 3
The gap passage 36 of diffuser 2, air-flow are accelerated in the flow process through impeller 3, and then air-flow is in the gap of diffuser 2
Slow down for the first time in channel 36 and be pressurized, the kinetic energy that impeller 3 passes to air-flow is changed into potential energy, air-flow enters the snail of support component
Shell Inner chamber 46, air-flow slows down again in spiral case Inner chamber 46 to be pressurized, and generates high pressure draught.The cross flow fan has output gas flow
Pressure is larger, the higher advantage of efficiency.
Claims (2)
1. a kind of air pressing type cross flow fan, it is characterised in that：The cross flow fan includes support component, diffuser (2), impeller portion
Part；Diffuser (2) is mounted on support component inner cavity, and wheel member is mounted on diffuser (2) inner cavity, and motor is mounted on base portion
Part axial direction one end；When the cross flow fan is run, impeller (3) rotation of motor-driven impeller component is entered the wind in Inner chamber (48)
Air-flow from close to air inlet Inner chamber (48) impeller (3) blade passage (39) enter impeller Inner chamber (55), impeller Inner chamber (55)
In air-flow from close to spiral case Inner chamber (46) impeller (3) blade passage (39) enter diffuser (2) gap passage (36),
Air-flow is accelerated in the flow process through impeller (3), and then air-flow slows down in the gap passage (36) of diffuser (2) and increases
The kinetic energy that impeller (3) passes to air-flow, is changed into potential energy, air-flow enters the spiral case Inner chamber (46) of support component, and air-flow exists by pressure
Slow down again in spiral case Inner chamber (46) and be pressurized, generates high pressure draught；
The diffuser connecting plate (31) of several Ω shapes, two neighboring diffuser connecting plate is axially distributed in diffuser (2)
(31) there are several diffuser vanes (35) between curved section part, diffuser vane (35) is forward-type multiple fins shaped blade,
It is gap passage (36) between two neighboring diffuser vane (35)；The straight length portion of two neighboring diffuser connecting plate (31)
Between be installing web plate two (32), installing web plate one (33) respectively, installing web plate two (32), installing web plate one (33) if having respectively
Dry bolt hole (10), is closed guard (34) between installing web plate one (33) and an adjacent diffuser vane (35)；
Support component includes base (1), side plate one (16), axle sleeve one (14), side plate two (8), axle sleeve two (6)；Axle sleeve one (14),
Axle sleeve two (6) is cylindrical, is sleeve central bore among axle sleeve one (14), axle sleeve two (6) axial end face；
Base (1) axial ends is base end plate one (28), base end plate two (24) respectively；Base end plate one (28) is in rectangle,
It is pilot hole (25) among base end plate one (28), there are several bolts hole (10) around base end plate one (28)；Base end plate
Two (24) are in rectangle, are pilot hole (25) among base end plate two (24), there is several bolts hole around base end plate two (24)
(10)；It is spiral case plate (23) that base (1) is intermediate, and spiral case plate (23) top half cross sectional shape is helix or involute, spiral case
Plate (23) lower half portion cross sectional shape is the tangent line of helix or the tangent line of involute；Spiral case plate (23) lower end and front panel one
(20) upper end links together, and spiral case plate (23) upper end links together with one end on the right side of fixed gusset two (27), fixed gusset
One end links together with squab panel (26) lower end on the left of two (27)；One on the left of volute tongue plate two (22) lower end and volute tongue plate one (21)
End links together, and volute tongue plate two (22) section is arc-shaped, the angle between volute tongue plate two (22) and volute tongue plate one (21) at
Acute angle, volute tongue plate one (21) right side one end link together with front panel two (29) lower end, volute tongue plate two (22) upper end and fixation
One end links together on the left of gusset one (30)；There are several bolts hole in fixed gusset two (27), fixed gusset one (30) respectively
(10)；Squab panel (26), fixed gusset two (27), fixed gusset one (30), spiral case plate (23), front panel one (20), front panel
Two (29), volute tongue plate one (21), the both ends of volute tongue plate two (22) are axial with base end plate one (28), base end plate two (24) respectively
Inner surface links together；
When the cross flow fan assembles, the curved section of diffuser (2) is partially installed on the spiral case plate (23) and volute tongue of base (1)
Between plate two (22), wheel member passes through the pilot hole (25) of base end plate one (28) or passes through the dress of base end plate two (24)
Wheel member is mounted on diffuser (2) inner cavity by distribution (25)；Spiral case plate (23), volute tongue plate one (21), volute tongue plate two (22),
Semi-enclosed spiral case Inner chamber (46) is constituted between base end plate one (28), base end plate two (24)；Spiral case Inner chamber (46) is by nearby
Coaming plate one (20), front panel two (29) one end be air outlet (18)；Squab panel (26), fixed gusset two (27), volute tongue plate two
(22), volute tongue plate one (21), front panel two (29), base end plate one (28), constitute between base end plate two (24) it is semi-enclosed
It enters the wind Inner chamber (48)；It is air inlet (12) that Inner chamber (48), which are entered the wind, close to one end of squab panel (26), front panel two (29)；
Side plate one (16) is in rectangle, there is the side plate boss one (38) of annular, side plate boss one among side plate one (16) axial direction one end
(38) intermediate is side plate axis hole, has axle sleeve mounting groove one among side plate one (16) the axial direction other end, axle sleeve one (14) is mounted on side
In the axle sleeve mounting groove one of plate one (16), there are several bolts hole (10) around side plate one (16)；Support component assembly when,
Several bolts are each passed through the bolt hole of the bolt hole (10) of side plate one (16) and the base end plate one (28) of base (1)
(10), side plate one (16) is made to be mounted on the axially external surface of the base end plate one (28) of base (1)；Side plate two (8) is in rectangle,
There is the side plate boss two (37) of annular among side plate two (8) axial direction one end, it is side plate axis hole, side plate that side plate boss two (37) is intermediate
There is axle sleeve mounting groove two among the axial direction other end of two (8), axle sleeve two (6) is mounted in the axle sleeve mounting groove two of side plate two (8), side
There are several bolts hole (10) around plate two (8)；Several bolts are each passed through side plate two (8) in assembly by support component
Bolt hole (10) and base (1) base end plate two (24) bolt hole (10), so that side plate two (8) is mounted on base (1)
The axially external surface of base end plate two (24)；
Wheel member includes impeller (3), impeller end plate two (4), space washer two (5), shaft two (7), shaft one (13), positioning
Washer one (15), impeller end plate one (17)；Shaft one (13), shaft two (7) are cylindrical；Space washer one (15), locating pad
It encloses two (5) in a ring, is washer center hole among space washer one (15), space washer two (5) axial end face；
Impeller (3) both ends are impeller end ring one (43), impeller end ring two (40) respectively, impeller end ring one (43) and impeller end ring two
(40) there are several impeller connection rings (42) between, between adjacent impeller end ring one (43) and impeller connection ring (42), phase
There are several leaves between two adjacent impeller connection rings (42), between adjacent impeller connection ring (42) and impeller end ring two (40)
Impeller blade (41), impeller blade (41) are forward-type multiple fins shaped blades, are blade passages between two neighboring impeller blade (41)
(39)；
Impeller end plate one (17) radial outside is successively the end plate shaft shoulder one (53), end plate boss one (54), impeller end plate one (17)
It is end plate axis hole one (52) among axial end face, end plate boss one (54) radially-outer surface has radial internal thread hole (45)；Leaf
Taking turns end plate two (4) radial outside is successively the end plate shaft shoulder two (51), end plate boss two (50), impeller end plate two (4) axial end face
Centre is end plate axis hole two (44), and end plate boss two (50) radially-outer surface has radial internal thread hole (45)；
Wheel member is welded on the end plate shaft shoulder one (53) of impeller end plate one (17) the impeller end ring of impeller (3) in assembly
One (43) radially inner side is mounted on shaft one (13) one end in the end plate axis hole one (52) of impeller end plate one (17), screw
(9) it is mounted in the internal thread hole (45) of impeller end plate one (17), is fixedly connected with shaft one (13) with impeller end plate one (17)
Together, and the other end of shaft one (13) is made to be located at the axially external of impeller end plate one (17), space washer one (15)
Washer center hole be mounted on the radial outside of shaft one (13), and make space washer one (15) left end face and impeller end plate
The contact of one (17) right end face is installed together；The end plate shaft shoulder two (51) of impeller end plate two (4) is welded on the leaf of impeller (3)
End ring two (40) radially inner side is taken turns, shaft two (7) one end is mounted in the end plate axis hole two (44) of impeller end plate two (4),
Screw (9) is mounted in the internal thread hole (45) of impeller end plate two (4), is fixedly connected with shaft two (7) with impeller end plate two (4)
Together, and the other end of shaft two (7) is made to be located at the axially external of impeller end plate two (4), the pad of space washer two (5)
Circle center hole is mounted on the radial outside of shaft two (7), and makes space washer two (5) right end face and impeller end plate two (4)
Left end face contact is installed together；
The cross flow fan is partially installed on the curved section of diffuser (2) spiral case plate (23) and the snail of base (1) in assembly
Between hyoplastron two (22), and the installing web plate two (32) of diffuser (2) is mounted on the fixation gusset two (27) of base (1)
Surface is mounted on the installing web plate one (33) of diffuser (2) fixation gusset one (30) upper surface of base (1)；Several
Bolt is each passed through the bolt hole (10) of the installing web plate two (32) of diffuser (2) and the fixation gusset two (27) of base (1)
Bolt hole (10) is each passed through several bolts the bolt hole (10) and base (1) of the installing web plate one (33) of diffuser (2)
Fixation gusset one (30) bolt hole (10), be fixed together diffuser (2) with base (1)；Wheel member is worn
It crosses the pilot hole (25) of base end plate one (28) or passes through the pilot hole (25) of base end plate two (24), wheel member is installed
In diffuser (2) inner cavity；It is mounted on shaft one (13) radially-outer surface middle position in the sleeve central bore of axle sleeve one (14),
And so that the axially external one end of shaft one (13) is passed through the side plate axis hole of side plate one (16), make the axially external one end of shaft one (13)
It is axially external positioned at side plate one (16)；Shaft two (7) radially-outer surface middle position is set to be mounted on the axle sleeve center of axle sleeve two (6)
Kong Zhong, and the axially external one end of shaft two (7) is made to pass through the side plate axis hole of side plate two (8), make shaft two (7) axially external one
It is axially external that end is located at side plate two (8)；The shaft of motor is linked together with shaft one (13), alternatively, motor
Shaft links together with shaft two (7).
2. a kind of application method of air pressing type cross flow fan according to claim 1, it is characterised in that：The cross flow fan
Operational process is：
When the cross flow fan is run, motor is by shaft one (13), impeller end plate one (17) driving impeller (3) along impeller
Direction of rotation (49) rotation, alternatively, motor is revolved by shaft two (7), impeller end plate two (4) driving impeller (3) along impeller
Turn direction (49) rotation；There is opposite fortune between the impeller blade (41) of impeller (3) and the diffuser vane (35) of diffuser (2)
It is dynamic；Air-flow enters air inlet Inner chamber (48) from air inlet (12), and the air-flow in air inlet Inner chamber (48) is from close to air inlet Inner chamber (48)
The blade passage (39) of impeller (3) enters impeller Inner chamber (55), and the air-flow in impeller Inner chamber (55) is from close to spiral case Inner chamber (46)
Impeller (3) blade passage (39) enter diffuser (2) gap passage (36) in, air-flow run through impeller (3) flowing
It is accelerated in the process, then air-flow slows down in the gap passage (36) of diffuser (2) and is pressurized, and impeller (3) is passed to air-flow
Kinetic energy be changed into potential energy, impeller blade (41) and diffuser vane (35) carry out first time pressurization to air-flow, and air-flow enters machine
The spiral case Inner chamber (46) of base member, the sectional area of spiral case Inner chamber (46) are gradually increased, and air-flow subtracts again in spiral case Inner chamber (46)
Speed is pressurized, and the air-flow in spiral case Inner chamber (46) is discharged along air outlet airflow direction (19) from air outlet (18)；Closed guard
(34) air-flow in blade passage (39) is prevented to be back to air inlet Inner chamber (48) under the influence of centrifugal force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779638.8A CN108916077A (en) | 2018-07-16 | 2018-07-16 | Air pressing type cross flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779638.8A CN108916077A (en) | 2018-07-16 | 2018-07-16 | Air pressing type cross flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108916077A true CN108916077A (en) | 2018-11-30 |
Family
ID=64411227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779638.8A Withdrawn CN108916077A (en) | 2018-07-16 | 2018-07-16 | Air pressing type cross flow fan |
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| Country | Link |
|---|---|
| CN (1) | CN108916077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118391297A (en) * | 2024-05-06 | 2024-07-26 | 科力尔电机集团股份有限公司 | Novel booster cross-flow fan |
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| CN104662371A (en) * | 2012-09-28 | 2015-05-27 | 大金工业株式会社 | Air conditioner |
| CN106246581A (en) * | 2016-09-22 | 2016-12-21 | 珠海格力电器股份有限公司 | Pressurizing fan structure and air conditioner with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3828852A1 (en) * | 1988-08-25 | 1990-03-08 | Heinrich Dipl Ing Krage | Ventilating device |
| CN1289013A (en) * | 1999-09-20 | 2001-03-28 | 三菱电机株式会社 | Air-blower, air-blower system and air-blowing method for air-blower system |
| CN1796895A (en) * | 2004-12-31 | 2006-07-05 | 三星电子株式会社 | Air discharging apparatus for air conditioning unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118391297A (en) * | 2024-05-06 | 2024-07-26 | 科力尔电机集团股份有限公司 | Novel booster cross-flow fan |
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Application publication date: 20181130 |