CN204878021U - Axial fan device - Google Patents
Axial fan device Download PDFInfo
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- CN204878021U CN204878021U CN201520559560.0U CN201520559560U CN204878021U CN 204878021 U CN204878021 U CN 204878021U CN 201520559560 U CN201520559560 U CN 201520559560U CN 204878021 U CN204878021 U CN 204878021U
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- impeller
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- fan
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Abstract
The utility model provides be applied to metallurgy for one kind, the chemical industry, light industry, food, medicine equipment, axial fan device among mechanical equipment and the civil buildings trade technical field, including air outlet reducing pipe, main dryer, revolve to the sign, the product data plate, impeller portion, the pulley, the locating wheel, the track, and a support, installing support on the track, install the locating wheel on the track, at the lower part of support installation pulley, at a shelf location owner dryer, at the left side of main dryer installation air outlet reducing pipe, installation impeller portion in main dryer, the installation is revolved to the sign on main dryer, the product data plate. Axial fan device's theory of operation be, when the impeller is rotatory, gaseously get into the impeller from the air intake axial, receive pushing and shove of blade on the impeller and make gaseous energy rise, then flow into the stator. The stator will deflect the air current and become the axial and flow, with the gas introduction diffuser pipe, convert gaseous kinetic energy into pressure energy, introduce the work pipeline. The utility model discloses a striking between gas and the blade is light, and the loss of energy is less, and the noise is less, and efficiency is higher, and the gas flow rate is high.
Description
Technical field
The utility model relates in place ventilation technical fields such as can be used for metallurgy, chemical industry, light industry, food, medical equipment, machinery and civil building, a kind of axial flow fan of the ventilation especially containing inflammable gas place.
Background technique
At present, if propeller fan can be used for the place ventilations such as metallurgy, chemical industry, light industry, food, medical equipment, machinery and civil building or strengthens the use of heat radiation. casing is removed, also can be used as free fan, also can install, to improve ducted blast by spaced series in longer exhaust duct.Following classification is made: classify by material: steel blower fan, fiberglass blower fan, plastic fan, PP blower fan, PVC blower fan, magnesium alloy blower fan, aluminium blower fan, stainless steel blower fan etc. according to the characteristic of axial-flow blower.Classification by use: the types such as explosion-proof fan, corrosive resistant fan, explosion proof and corrosion protection, axial-flow fan special blower fan.Classify by usage requirement: pipe type, wall type, post formula, fixed, rain-proof dust-prevention type, movable type, external motor type etc.Anti-explosion ventilator forms by " A " propeller fan contoured design.Impeller diameter, by 280 millimeters to 1120 millimeters, is divided into № 2.8A-11.2A 13 kinds of plane No., and the number of blade of each plane No. is 4, and blades installation angle is 15
0, 20
0, 30
0, 35
0five kinds.Motor speed can be selected under impeller peripheral speed is no more than the condition of 60 meter per seconds.With often kind of plane No. and blades installation angle size thereof, the difference of wheel speed height, flow, the pressure of blower fan are also different, and maximum pressure is 345.31 Pascals, and peak rate of flow is 61102 meters
2/ time.Axial-flow blower is made up of impeller, casing, wind collecting unit three part: impeller: be made up of blade, hub hub and hubcap.Blade is aluminium matter.The ratio d/D=0.35 of wheel diameter and impeller, blower fan is direct-connection transmission, and wheel hub is directly contained on motor reel.Seeing in intake grill direction, is be rotated counterclockwise.Casing: casing and flow blower casing, in straight tube shape, makes with steel plate and section bar, and together with support welding.Certain gap is had between casing and impeller.Wind collecting unit: the intake grill end being arranged on casing is very large to the effect of fan performance.But air-flow is not steady during blade rotation, clash into violent, energy loss is large, noise is large, efficiency is low.
So along with the progress of technology, the expansion of research field, new demand constantly increases, and original centrifugal blower can not meet industrial development far away, only has manufacturing technology and technique constantly break through and innovate, could meet the requirement of research and production.Therefore, develop a kind of axial flow fan is new problem anxious to be resolved always.
Summary of the invention
The purpose of this utility model provides a kind of axial flow fan, and this model utility structure is simple, and manufacturing process is reasonable, and the shock between gas and blade is light, and the loss of energy is less, and noise is less, and efficiency is higher, and gas flow rate is high.
The purpose of this utility model is achieved in that a kind of axial flow fan, comprise exhaust outlet reducer pipe, main wind tube, rotation direction direction board, product nameplate, impeller portion, pulley, positioning wheel, track, support, mounting bracket in orbit, in orbit positioning wheel is installed, in the bottom of support, pulley is installed, main wind tube installed by support, in the left side of main wind tube, exhaust outlet reducer pipe is installed, impeller portion is installed in main wind tube, main wind tube is installed rotation direction direction board, product nameplate.
Main points of the present utility model are its structure.The working principle of described axial flow fan is, when the impeller is rotated, gas axially enters impeller from intake grill, is subject to pushing and the energy of gas being raised of impeller upper blade, then flows into stator.Deflect airflow is become axial flow by stator, gas is imported diffuser pipe simultaneously, further gas kinetic energy is converted to pressure energy, finally introduces working line.The working method of axial fan blade and the wing of aircraft similar; Lift upwards acts on wing and supports the weight of aircraft by the latter, axial fan then fixed position air is moved, and the cross section of axial fan is generally wing profile, and blade can fixed position, also can rotate around its longitudinal axis; The angle of blade and air-flow or blade pitgh can be non-adjustable or adjustable, and change blade angle or spacing are one of main advantages of axial fan, and small leaf pitch angles produces lower flow, increases spacing and then can produce higher flow; Advanced axial fan can change blade pitgh when blower fan operates, thus correspondingly changes flow, and this is called adjusting rotor blade (VP) axial fan.
A kind of axial flow fan compared with prior art, there is structure simple, manufacturing process is reasonable, shock between gas and blade is light, and the loss of energy is less, and noise is less, efficiency is higher, gas flow rate is high, can obtain the advantages such as larger static pressure, will be widely used in metallurgy, chemical industry, light industry, food, medical equipment, machinery and civil building industry technology field in the outlet port of blower fan.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in detail.
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment two.
Embodiment
Embodiment one
With reference to accompanying drawing, a kind of axial flow fan, comprise exhaust outlet reducer pipe 1, main wind tube 2, rotation direction direction board 3, product nameplate 4, impeller portion 5, pulley 6, positioning wheel 7, track 8, support 9, mounting bracket 9 on track 8, track 8 is installed positioning wheel 7, installs pulley 6 in the bottom of support 9, support 9 is installed main wind tube 2, in the left side of main wind tube 2, exhaust outlet reducer pipe 1 is installed, in main wind tube 2, impeller portion 5 is installed, main wind tube 2 is installed rotation direction direction board 3, product nameplate 4.
Embodiment two
With reference to accompanying drawing, a kind of axial flow fan, comprise rainproof hood adjusting bolt 11, rainproof hood 12, main wind tube 13, outsides cover of electric machinery 14, wind direction stator 15, motor 16, impeller portion 17, stone bolt 18, bedframe 19, bedframe 19 is installed main wind tube 13, and fix with stone bolt 18, in main wind tube 13 mounted motor outer cover 14, wind direction stator 15, motor 16, impeller portion 17, by rainproof hood adjusting bolt 11, rainproof hood 12 is fixed on main wind tube 13 top.
Be described in further detail the utility model below:
The working principle of described axial flow fan is, when the impeller is rotated, gas axially enters impeller from intake grill, is subject to pushing and the energy of gas being raised of impeller upper blade, then flows into stator.Deflect airflow is become axial flow by stator, gas is imported diffuser pipe simultaneously, further gas kinetic energy is converted to pressure energy, finally introduces working line.The working method of axial fan blade and the wing of aircraft similar; Lift upwards acts on wing and supports the weight of aircraft by the latter, axial fan then fixed position air is moved, and the cross section of axial fan is generally wing profile, and blade can fixed position, also can rotate around its longitudinal axis; The angle of blade and air-flow or blade pitgh can be non-adjustable or adjustable, and change blade angle or spacing are one of main advantages of axial fan, and small leaf pitch angles produces lower flow, increases spacing and then can produce higher flow; Advanced axial fan can change blade pitgh when blower fan operates, thus correspondingly changes flow, and this is called adjusting rotor blade (VP) axial fan.
The Installation and Debugging of blower fan and operation: first should get out installation material and instrument in a pre-installation.And the parts of blower fan each several part are checked, whether parts are complete, and whether impeller is consistent with the sense of rotation of casing.To the more just special minute inspection such as impeller, main shaft and bearing, as found damage, should fix, then using kerosene bearing cleaning case inner.Attention question in the process of fitting operation: (1), on some mating faces, for preventing getting rusty, being reduced dismounting difficulty, should be coated lubricating grease or machine oil.(2) during bolt on mating face, if any positioning dowel, should first first-class pin, then tight a bolt.(3) check in casing and other enclosure interior, do not have instrument, the foreign material falling into and leave over.(4) blower fan and ground junction plane, air inlet/outlet pipeline connect time should adjust make it nature coincide, must not connect by force.Installation requirement: (1) installs by the position shown in drawing and size, for obtaining high efficiency, will ensure the gap size of intake grill and impeller especially.(2) ensure major axis horizontal position, and measure the concentricity of main shaft and motor shaft and the nonparallelism at coupling two ends.Diaxon nonparallelism franchise is 0.05mm, and coupling both ends of the surface nonparallelism franchise is 0.05mm.(3) install regulate time, note not anti-loaded, ensure that airintake direction is consistent with impeller rotation direction direction.(4), after assembling, stir rotor, checked whether tension or with top portion collision phenomenon of crying.(5), when installing fan inlet and outlet conduit, weight should not be added on casing.(6), after motor is installed, belt pulley or coupling shield are installed, as suction port place do not tap into feed channel time, also need to attach protective net or other safety installationss (user provides for oneself).Miscellaneous part is pressed pattern and is installed.(7) after all installing, qualified through total inspection, can running in.
Claims (1)
1. an axial flow fan, comprise exhaust outlet reducer pipe, main wind tube, rotation direction direction board, product nameplate, impeller portion, pulley, positioning wheel, track, support, it is characterized in that: mounting bracket in orbit, in orbit positioning wheel is installed, in the bottom of support, pulley is installed, main wind tube installed by support, in the left side of main wind tube, exhaust outlet reducer pipe is installed, impeller portion is installed in main wind tube, main wind tube is installed rotation direction direction board, product nameplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559560.0U CN204878021U (en) | 2015-07-30 | 2015-07-30 | Axial fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559560.0U CN204878021U (en) | 2015-07-30 | 2015-07-30 | Axial fan device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878021U true CN204878021U (en) | 2015-12-16 |
Family
ID=54822400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520559560.0U Active CN204878021U (en) | 2015-07-30 | 2015-07-30 | Axial fan device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065318A (en) * | 2015-07-30 | 2015-11-18 | 沈阳盛纳机械制造有限公司 | Axial flow fan device |
| CN105782130A (en) * | 2016-03-29 | 2016-07-20 | 浙江理工大学 | Unpowered draught fan with support frames as wing-shaped blades |
-
2015
- 2015-07-30 CN CN201520559560.0U patent/CN204878021U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065318A (en) * | 2015-07-30 | 2015-11-18 | 沈阳盛纳机械制造有限公司 | Axial flow fan device |
| CN105782130A (en) * | 2016-03-29 | 2016-07-20 | 浙江理工大学 | Unpowered draught fan with support frames as wing-shaped blades |
| CN105782130B (en) * | 2016-03-29 | 2018-02-16 | 浙江理工大学 | Support frame is the no-power air blower of airfoil fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |