CN2443179Y - Air pressure dynamic variable wing axial flow fan - Google Patents
Air pressure dynamic variable wing axial flow fan Download PDFInfo
- Publication number
- CN2443179Y CN2443179Y CN 00218022 CN00218022U CN2443179Y CN 2443179 Y CN2443179 Y CN 2443179Y CN 00218022 CN00218022 CN 00218022 CN 00218022 U CN00218022 U CN 00218022U CN 2443179 Y CN2443179 Y CN 2443179Y
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- air
- air pressure
- wing
- place
- electric current
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- 238000012423 maintenance Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 description 5
- 241001061140 Caulophryne pelagica Species 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
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Abstract
An air pressure dynamic variable wing axial flow fan mainly comprises an air duct, a hub 9 with variable wings 4, a current-air pressure positioner 17 connected with an air source device, a wing angle adjusting mechanism, a rotary air valve 11 and an air hose 15. When the wing angle adjusting mechanism works, the motor drives the hub to rotate, high-pressure air generated by the current-air pressure positioner enters the hub through the air hose and the rotary air valve according to the air quantity requirement of the external environment on the fan, and acts on the wing angle adjusting mechanism to adjust the blades to required angles, so that the dynamic adjustment of the wings of the fan under the normal operation condition can be effectively realized.
Description
The utility model relates to a kind of air pressure dynamically changeable wing axial-flow blower, and genus can be regulated the fan manufacturing technology field at blower fan wing angle automatically.
The wing angle of existing axial-flow blower is regulated, mostly with manually when the blower fan stall, regulating the fin angle by the set screw of dismounting fin, because the manual tune randomness is bigger, easily produce bigger adjusting deviation, make blower fan be difficult to the running effect that reaches desirable, and manual tune can't when turning round, blower fan be carried out dynamic adjustments.The employing hydraulic principle is also arranged, carry out the dynamically changeable wing with hydraulic transmission when blower fan turns round and regulate, but this type of blower fan volume is bigger, cost is higher, and easily pollutes because of misoperation causes hydraulic fluid leak to produce.
The purpose of this utility model provides a kind of reasonable in design, adopts the air pressure principle, can regulate the air pressure dynamically changeable wing axial-flow blower at wing angle in the blower fan operation process continuously arbitrarily.
The utility model is an air pressure dynamically changeable wing axial-flow blower, mainly comprise air duct, place guide vane wheel and motor in the air duct, place the wheel hub of belt variable fin on the motor shaft, it is characterized in that also comprising simultaneously the electric current-air pressure position device that places air duct to link to each other with compressed air source unit outward, place the wing angle controlling mechanism in the wheel hub, place the outer rotary air valve that links to each other with wing angle controlling mechanism of wheel hub, connect the air hose of electric current-air pressure position device and rotary air valve etc.During work, by the rotation of driven by motor wheel hub, according to the air quantity requirement of external environment to blower fan, the pressurized air that is produced by electric current-air pressure position device enters in the wheel hub by air hose and rotary air valve, act on wing angle controlling mechanism, make fin be adjusted to required angle.
Described wing angle controlling mechanism can comprise interconnected sail shaft bearing, crank-connecting rod, and the cylinder piston group, returning spring etc., the cylinder piston group links to each other with rotary air valve.
Described air duct can comprise main wind tube and auxiliary air duct, and motor and guide vane wheel can place in the main wind tube, and wheel hub and rotary air valve can place in the auxiliary air duct, and electric current-air pressure position device can be fixed in outside the auxiliary air duct, also can be provided with the maintenance window on the auxiliary air duct.
Described rotary air valve top also can be provided with the cardan shaft joint, and the cardan shaft joint is provided with the feedback indication connecting rod of band blade angle indicator, in order to observe the adjusting angle of fin.
Described electric current-air pressure position device can comprise comparison amplifier, wing angle feedback signal generator, and the air inlet solenoid valve, the vent discharge magnet valve, air no volt alarm etc., wing angle feedback signal generator links to each other with blade angle indicator.
Described electric current-air pressure position device can be handled by variable sweep wing controller or computer control, realizes remote auto control or shakes control control.
The utility model reasonable in design, adopt the air pressure principle, effectively realized the dynamic adjustments of blower fan at the normal operating condition lower panel, even when load changes significantly, inner control ventilator air quantity on a large scale still, and running is regulated rapidly in wing angle, load change can correctly be followed rapidly the time, guaranteed that blower fan continues steadily, running efficiently, can effectively reduce operating cost, energy saving consumption to greatest extent during especially little air quantity, simultaneously, compare with existing blower fan, it is little that the utility model also has a volume, in light weight, accommodation space is little, advantage such as easy to installation and maintenance, be particularly useful for subway, railway, the ventilation in tunnels such as expressway is ventilated, and factory floor humidity, temperature controlled ventilation.And because air source of the gas cleanliness without any pollution, the variable sweep wing operation again can be away from the scene, and therefore, the utility model is particularly useful for explosion-proof place and use in the poisonous and harmful place.
Accompanying drawing has provided structural representation of the present utility model.
Fig. 1 is an overall structure sectional view of the present utility model.
Fig. 2 is the structural representation of air pressure generator described in the utility model.
Below in conjunction with embodiment the utility model is further described;
The utility model mainly comprises the auxiliary air duct 8 of main wind tube 2 and band maintenance window 10, place guide vane wheel 3 and motor 1 in the main wind tube, place the wheel hub 9 of band fin 4 in the auxiliary air duct, place in the wheel hub 9 mainly by sail shaft bearing 5, crank-connecting rod 6, cylinder piston group 7, the wing angle controlling mechanism that returning spring 14 grades constitute, place the wheel hub rotary air valve 11 and the cardan shaft joint 12 of air hose 15 in addition, place the auxiliary air duct 8 outer electric current-air pressure position devices 17 that link to each other with compressed air source unit 23 with air hose 15, place the feedback indication connecting rod 13 of band blade angle indicator 16 on the cardan shaft joint 12 etc.Electric current-air pressure position device 17 mainly is made of comparison amplifier 19, wing angle feedback signal generator 18, air inlet solenoid valve 20, vent discharge magnet valve 21, air no volt alarm 24 etc., and wing angle feedback signal generator 18 links to each other with blade angle indicator 16.Electric current-air pressure position device is handled by 22 controls of variable sweep wing controller.
During work, wheel hub 9 rotations that driven by motor links to each other when coaxial with it, according to the actual field needs, handle knob by variable sweep wing controller 22 (also can pass through PLC variable program controller computer), carry the dc current signal that is proportional to wing angle to electric current-air pressure position device 17, electric current-air pressure position device 17 is supplied with the pressurized air of stable cleaning by the compressed air source unit 23 of special use.Current signal is compared by the signal of comparison amplifier 19 and 18 inputs of wing angle feedback signal generator, if control signal is greater than wing angle feedback signal, then comparison amplifier 19 is connected air inlet solenoid valve 20, and output pressurized air enters wheel hub 9 through air hose 15, rotary air valve 11.The piston that enters the pressurized air promotion cylinder piston group 7 of wheel hub 9 moves to left, thereby 6 revolutions of throw crank connecting rod drive the blower fan fin 4 that is installed on the sail shaft bearing 5 and turn round synchronously, because the fin 4 on the wheel hub 9 is all installed symmetrically.Therefore also rotation synchronously of all fins 4 on the wheel hub 9.The piston of cylinder piston group 7 moves to left, and compression reaction spring 14 makes feedback indication connecting rod 13 pendulum of turning left simultaneously, and the indicating arm that spurs blade angle indicator 16 is up put.Wing angle feedback signal generator 18 signals that drive in electric current-air pressure position device 17 increase, until equating with control signal, and comparison amplifier 19 no-output voltages then, air inlet solenoid valve 20 cuts out.Cylinder piston group 7 in the wheel hub 9 rests on the fixed position, and blower fan fin 4 also rests on the desired angle, and by crank-connecting rod 6, blade angle indicator 16 indicates the adjustment angle of the impeller of blower wing 4.Otherwise when variable sweep wing controller 22 is handled knob when reducing the rotation of wing angular direction, then control signal is less than wing angle feedback signal, then comparison amplifier 19 is connected vent discharge magnet valve 21, cylinder piston group 7 pressurized air in the wheel hub 4 are through rotary air valve 11, air hose 15, vent discharge magnet valve 21 air of releasing.The piston of cylinder piston group 7 moves right under the effect of returning spring 14, back rotates thereby drive crank-connecting rod 6, and the impeller of blower wing 4 is rotation back also.Simultaneously, feedback indication connecting rod 13 pendulum of turning right promotes the indicating arm of blade angle indicator 16, the past bottom, wing angle feedback signal generator 18 signals in electric current-air pressure position device 17 are reduced, until equating with control signal, comparison amplifier 19 no-output voltages then, vent discharge magnet valve 21 is closed, cylinder piston group 7 in the wheel hub 9 rests on the new position, blower fan fin 4 also is adjusted on the desired angle, and by crank-connecting rod 6, blade angle indicator 16 indicates the new adjusting angle of blower fan fin 4.When the air pressure of supplying electric current-air pressure position device 17 was lower than specified value, acoustooptic alarm will take place in its air no volt alarm 24, and the user may extend in the control cab or pieces together to go in the overall automatic monitoring equipment as required.
Claims (5)
1, a kind of air pressure dynamically changeable wing axial-flow blower, comprise air duct, place guide vane wheel (3) and motor (1) in the air duct, place the wheel hub (9) of belt variable fin (4) on the motor shaft, it is characterized in that also comprising simultaneously the electric current-air pressure position device (17) that places air duct to link to each other with compressed air source unit outward, place the wing angle controlling mechanism in the wheel hub, place the outer rotary air valve (11) that links to each other with wing angle controlling mechanism of wheel hub, connect the air hose (15) of electric current-air pressure position device and rotary air valve.
2, by the described air pressure dynamically changeable of claim 1 wing axial-flow blower, it is characterized in that described wing angle controlling mechanism can comprise interconnected sail shaft bearing (5), crank-connecting rod (6), cylinder piston group (7), returning spring (14), the cylinder piston group links to each other with rotary air valve (11).
3, by the described air pressure dynamically changeable of claim 1 wing axial-flow blower, it is characterized in that described air duct can comprise main wind tube (2) and auxiliary air duct (8), motor (7) and guide vane wheel (3) can place in the main wind tube, wheel hub (9) and rotary air valve (11) can place in the auxiliary air duct, electric current-air pressure position device (17) can be fixed in outside the auxiliary air duct, also can be provided with maintenance window (10) on the auxiliary air duct.
4, by claim 1 or 2,3 described air pressure dynamically changeable wing axial-flow blowers, it is characterized in that described electric current-air pressure position device (17) can comprise comparison amplifier (19), wing angle feedback signal generator (18), air inlet solenoid valve (20), vent discharge magnet valve (21), air no volt alarm (24), wing angle feedback signal generator (18) links to each other with blade angle indicator (16).
5,, it is characterized in that described electric current-air pressure position device (17) can be by variable sweep wing controller (22) or computer control manipulation by claim 1 or 2,3 described air pressure dynamically changeable wing axial-flow blowers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218022 CN2443179Y (en) | 2000-06-15 | 2000-06-15 | Air pressure dynamic variable wing axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218022 CN2443179Y (en) | 2000-06-15 | 2000-06-15 | Air pressure dynamic variable wing axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2443179Y true CN2443179Y (en) | 2001-08-15 |
Family
ID=33583484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218022 Expired - Fee Related CN2443179Y (en) | 2000-06-15 | 2000-06-15 | Air pressure dynamic variable wing axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2443179Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458174C (en) * | 2002-12-05 | 2009-02-04 | 斯特格控股有限公司 | Fan |
| CN105074224A (en) * | 2013-03-13 | 2015-11-18 | 豪顿轴流风机有限责任公司 | Rotating oil union with centerline mounted displacement probe, system for measuring displacement of regulation system of variable pitch axial fan and method thereof |
| CN109882433A (en) * | 2019-03-26 | 2019-06-14 | 宁波巨浪风机有限公司 | A kind of blower |
-
2000
- 2000-06-15 CN CN 00218022 patent/CN2443179Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458174C (en) * | 2002-12-05 | 2009-02-04 | 斯特格控股有限公司 | Fan |
| CN105074224A (en) * | 2013-03-13 | 2015-11-18 | 豪顿轴流风机有限责任公司 | Rotating oil union with centerline mounted displacement probe, system for measuring displacement of regulation system of variable pitch axial fan and method thereof |
| CN109882433A (en) * | 2019-03-26 | 2019-06-14 | 宁波巨浪风机有限公司 | A kind of blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |