CN202732485U - Corrosion resistant induced draft fan - Google Patents
Corrosion resistant induced draft fan Download PDFInfo
- Publication number
- CN202732485U CN202732485U CN 201220404687 CN201220404687U CN202732485U CN 202732485 U CN202732485 U CN 202732485U CN 201220404687 CN201220404687 CN 201220404687 CN 201220404687 U CN201220404687 U CN 201220404687U CN 202732485 U CN202732485 U CN 202732485U
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- China
- Prior art keywords
- induced draft
- corrosion resistant
- draught fan
- bottom plate
- blower
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Abstract
The utility model relates to the technical field of induced draft fan apparatuses and especially provides a corrosion resistant induced draft fan to solve the problems of discharging corrosive gases of acid, alkali, salt and the like by the induced draft fans. The corrosion resistant induced draft fan comprises a motor, a draft fan outer cover, and a vane wheel unit disposed inside the outer cover, and is characterized in that an induced draft cover is disposed at a horizontal central axis of the draft fan outer cover, an air outlet is disposed vertically upwards and along a direction tangential to a rotation track of an external rim of the vane wheel unit; a motor shaft sleeve is disposed at the center of the vane wheel unit, one end of the vane wheel unit is provided with an induced draft plate corresponding to the induced draft cover while the other end thereof is provided with a round bottom plate, and the induced draft plate, the round bottom plate and vanes are an integral structure composed of glass fiber reinforced polypropylene. The corrosion resistant induced draft fan is compact in structure, portable, low in electricity consumption, and resistant to corrosive gases of acid, alkali, salt and the like.
Description
Technical field
The utility model relates to the Fan Equipment technical field, especially a kind of corrosion resistant induced draught fan.
Background technique
Induced draught fan is in the every field extensive use such as industrial, civilian, gas characteristic for different places, people have designed various blower units, be a kind of centrifugal induced draught fan of CN1619160A such as patent publication No., one end of barrel-type casing is the air sucking mouth, the receded disk impeller that links to each other with motor reel is contained in the other end of housing, and intake grill and exhaust outlet must be on same straight lines when this structure was installed.And for example patent publication No. is a kind of induced draught fan of CN101265922A, the impeller that can be under the driving of power equipment rotates around the axle of level that fan main body comprises Fan casing and is positioned at this Fan casing, side at Fan casing offers air intake pipe vertically, on Fan casing, along setting out airduct with the tangent direction of the outer peripheral rotary motion trace of impeller, the sectional shape with axially perpendicular of Fan casing is logarithmic spiral shape, the outer peripheral rotary motion trace of each impeller is circle, distance between this circle and the Fan casing is being 0.7～1 times of described radius of a circle at a distance of the farthest, distance between circle and the Fan casing is being 0.1～1.1 centimetre near the place, this design has increased the distance between Fan casing and the impeller, friction between air and the metal shell is reduced, and this device does not have anti-corrosion function.Patent publication No. is a kind of high temperature draught fan of CN102536914A for another example, main shaft one end is installed impeller, spiral case, the air intake air guide sleeve, bearing support and the bearing that is installed in the bearing support, main shaft is provided with radiating segment, radiating segment is near a side of spiral case and the main shaft shaft part between the close side of bearing support of spiral case at bearing support, the length of radiating segment is 200mm, bearing support is water-cooling bearing block, the air intake air guide sleeve is arranged on the intake grill outside of described spiral case, this device is by arranging radiating segment at main shaft, strengthened the heat diffusion area of main shaft, be fit to use under the hot environment.
Summary of the invention
The purpose of this utility model is in order to solve the induced draught fan problem of the corrosive gass such as dispatch acid, alkali, salt, to provide a kind of reasonable in design, low, the lightweight corrosion resistant induced draught fan of noise.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of corrosion resistant induced draught fan, comprise motor, blower hood, be arranged on the impeller unit of outer cover inside, it is characterized in that the horizontal middle spindle line position on the described blower hood is provided with blower cover, on blower hood, along with the tangent direction of impeller unit outward edge rotary motion trace and be provided with vertically upward exhaust outlet; Described impeller unit center is provided with motor shaft sleeve, and an end of impeller unit is provided with the induced draft plate corresponding with blower cover, and the other end is provided with circular bottom plate, and induced draft plate, circular bottom plate and blade are the integral structure that Reinforced Polypropylene forms.According to impeller unit blower hood is designed to the arcuate stream line form, make overall structure not only compact, and structural strength is large enhancing also, impeller unit provides power by the peripheral hardware motor, blower cover becomes the setting of horizontal side air intake form, the gas that enters is discharged from exhaust outlet along the impeller tangent direction by the acceleration of impeller unit, and it is distinguished and admirable that circular bottom plate equally also plays a part guiding, and the anti-TRPP material of glass has high strength and acid-proof, alkali, salt corrosion effect.
As preferably, described blower hood is the integral structure that anti-corrosion material forms, and blower hood is made as the cambered surface shell mechanism along the profile of impeller unit, and the exhaust outlet end is provided with the exhaust outlet flange of level.Blower hood is that anti-corrosion material adopts the anti-TRPP material of glass to make equally, and the exhaust outlet flange of level is pressed the standard flange design, adapts to the installation of each field of employment.
As preferably, described blower cover is provided with two flanges that are parallel to each other, and is provided with short tube between two flanges, and one of them flange is connected with blower hood, and two parallel flanges and short tube are the integral structure that anti-corrosion material consists of.Blower cover is not only the intake grill guider, protects simultaneously the use safety of blower hood.The blower cover flange is connected usefulness with blower hood screw also or adopt the anticorrosion screw of stainless steel screw or outer wrapping anti-corrosion material.
As preferably, described induced draft plate is conical structure, and the endoporus of induced draft plate is connected with an end of some blades.In the practical application, induced draft plate is that the cone of the different taperings of two joints forms, and little towards the cone tapering of blower cover one end, the cone tapering that endoporus is connected with blade is large, and the connection of two pitch circle cones has strengthened induced draft plate intensity greatly.
As preferably, described some blades are arranged in a kind of inclination angle mode along the impeller unit sense of rotation between induced draft plate and circular bottom plate.Some blades are arranged by setting spiral angle, during rotation to reach best blower effect.
As preferably, it is poroid that described some blades arrangement rear center positions consist of a taper, and the major diameter of cone shape hole is towards induced draft plate one end.Taper is poroid to be that air flow enters carrier, little to the aperture greatly from the aperture, forces swirling eddy to be discharged from exhaust outlet rapidly.
As preferably, described blower hood is provided with the flat bed with supporting plane.Will be fit to install as a complete product, flat bed has guaranteed this needs.
As preferably, described motor shaft sleeve is to establish a flange arrangement on the body external diameter, is provided with the keyway that cooperates with motor output shaft in the body endoporus, and the external diameter of body is connected with the central through bore of circular bottom plate.Motor shaft sleeve adopts metallic material to make, and the anticorrosive coat processing is carried out on the surface, and motor shaft sleeve is sleeved on the circular bottom plate center, and connects with bolt.
As preferably, the exterior edge face snug fit of end face of the flange on the described motor shaft sleeve and circular bottom plate, the flange outside of motor shaft sleeve is provided with protecting cover, and described protecting cover is provided with central through bore, and this central through bore cooperates with the body external diameter of motor shaft sleeve.For the antisepsis of expanded motor axle sleeve, the arranging of protecting cover avoided motor shaft sleeve to contact with institute exhaust body fully.
The beneficial effects of the utility model are: compact structure, light, power consumption is low, has the corrosive gass such as acid-and base-resisting, salt.
This device is not suitable for the fragrant compounds of group, and ketone, the air inducing such as chromic acid, gas temperature are not higher than 50 degree.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of impeller unit structural representation of the present utility model.
Fig. 3 is the right TV structure schematic diagram of the utility model Fig. 2.
Among the figure: 1. blower hood, 11. flat beds, 12. exhaust outlet flanges, 2. impeller unit, 21. motor shaft sleeves, 22. protecting covers, 23. blades, 24. circular bottom plate, 25. induced draft plates, 3. blower cover.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Referring to Fig. 1, a kind of corrosion resistant induced draught fan of the present embodiment, by motor, blower hood 1, the impeller unit 2 that is arranged on outer cover inside becomes with 3 grades of blower covers, blower hood 1 is provided with two orthogonal central axis in spatial position, wherein, blower hood 1 on horizontal center line axis is equipped with blower cover 3, blower cover 3 places are intake grill, on blower hood 1, along with the direction tangential of circular impeller unit 2 outward edge rotary motion trace and be provided with vertically upward exhaust outlet, the exhaust outlet end is provided with exhaust outlet flange 12, the bottom of blower hood 1 is provided with flat bed 11, flat bed 11 adopts metallic material to make, and blower hood 1 and blower cover 3 all adopt the anti-TRPP material of glass to make.
As shown in Figure 2, one end of impeller unit 2 is provided with the induced draft plate 25 corresponding with blower cover 3, induced draft plate 25 is comprised of the conical tube of the different taperings of two joints, conical tube tapering towards blower cover 3 one ends is little, another pitch circle Taper Pipe tapering is large, the other end of impeller unit 2 is provided with circular bottom plate 24, is provided with 8 blades between circular bottom plate 24 and the induced draft plate 25, and 8 blades are arranged in 40 degree inclination angle modes along impeller unit 2 sense of rotation.As shown in Figure 3.The integral structure that induced draft plate 25, circular bottom plate 24 and blade 23 are comprised of the anti-TRPP material of glass.The center of circular bottom plate 24 is provided with through hole, motor shaft sleeve 21 is housed in this through hole, motor shaft sleeve 21 is the structure of establishing a flange on the body external diameter, is provided with the keyway that cooperates with motor output shaft in the body endoporus, and the central through bore of the external diameter of body and circular bottom plate 24 is connected; The exterior edge face snug fit of end face of the flange on the motor shaft sleeve 21 and circular bottom plate 24, the flange outside of motor shaft sleeve 21 is provided with the protecting cover 22 of making of the PP material, protecting cover 22 is provided with central through bore, the body external diameter interference fit of this central through bore and motor shaft sleeve 21, protecting cover 22, motor shaft sleeve 21 flanges, circular bottom plate 24 threes link into an integrated entity with bolt.
During use, utilize flat bed 11 to put steady whole device, connect motor, exhaust outlet flange 12 is connected with exhaust duct, and starting electrical machinery can air inducing work.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any structure after the simple transformation of the present utility model is all belonged to protection domain of the present utility model.
Claims (9)
1. corrosion resistant induced draught fan, comprise motor, blower hood (1), be arranged on the impeller unit (2) of outer cover inside, it is characterized in that the horizontal middle spindle line position on the described blower hood (1) is provided with blower cover (3), on blower hood (1), along with the tangent direction of impeller unit (2) outward edge rotary motion trace and be provided with vertically upward exhaust outlet; Described impeller unit (2) center is provided with motor shaft sleeve (21), one end of impeller unit (2) is provided with the induced draft plate (25) corresponding with blower cover (3), the other end is provided with circular bottom plate (24), the integral structure that induced draft plate (25), circular bottom plate (24) and blade (23) form for the Reinforced Polypropylene material.
2. corrosion resistant induced draught fan according to claim 1, it is characterized in that the integral structure that described blower hood (1) forms for anti-corrosion material, blower hood (1) is made as the cambered surface shell mechanism along the profile of impeller unit (2), and the exhaust outlet end is provided with the exhaust outlet flange (12) of level.
3. corrosion resistant induced draught fan according to claim 1 and 2, it is characterized in that described blower cover (3) is provided with two flanges that are parallel to each other, be provided with short tube between two flanges, one of them flange is connected with blower hood (1), and two parallel flanges and short tube are the integral structure that anti-corrosion material consists of.
4. corrosion resistant induced draught fan according to claim 1 and 2 is characterized in that described induced draft plate (25) is conical structure, and the endoporus of induced draft plate (25) is connected with an end of some blades (23).
5. corrosion resistant induced draught fan according to claim 4 is characterized in that described some blades (23) between induced draft plate (25) and circular bottom plate (24), arrange in a kind of inclination angle mode along impeller unit (2) sense of rotation.
6. corrosion resistant induced draught fan according to claim 4 is characterized in that described some blades (23) arrangement rear center position consists of a taper poroid, and the major diameter of cone shape hole is towards induced draft plate (25) one ends.
7. corrosion resistant induced draught fan according to claim 1 and 2 is characterized in that described blower hood (1) is provided with the flat bed (11) with supporting plane.
8. corrosion resistant induced draught fan according to claim 1 and 2, it is characterized in that described motor shaft sleeve (21) is to establish a flange arrangement on the body external diameter, be provided with the keyway that cooperates with motor output shaft in the body endoporus, the external diameter of body is connected with the central through bore of circular bottom plate (24).
9. corrosion resistant induced draught fan according to claim 8, it is characterized in that end face of flange on the described motor shaft sleeve (21) and the exterior edge face snug fit of circular bottom plate (24), the flange outside of motor shaft sleeve (21) is provided with protecting cover (22), described protecting cover (22) is provided with central through bore, and this central through bore cooperates with the body external diameter of motor shaft sleeve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404687 CN202732485U (en) | 2012-08-16 | 2012-08-16 | Corrosion resistant induced draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404687 CN202732485U (en) | 2012-08-16 | 2012-08-16 | Corrosion resistant induced draft fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732485U true CN202732485U (en) | 2013-02-13 |
Family
ID=47658188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404687 Expired - Fee Related CN202732485U (en) | 2012-08-16 | 2012-08-16 | Corrosion resistant induced draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547777A (en) * | 2018-05-23 | 2018-09-18 | 熙诚环保科技（苏州）有限公司 | A kind of diagonal flow fan with anti-corrosion function |
-
2012
- 2012-08-16 CN CN 201220404687 patent/CN202732485U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547777A (en) * | 2018-05-23 | 2018-09-18 | 熙诚环保科技（苏州）有限公司 | A kind of diagonal flow fan with anti-corrosion function |
| CN108547777B (en) * | 2018-05-23 | 2023-08-15 | 熙诚环保科技（苏州）有限公司 | Diagonal flow fan with anti-corrosion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150816 |
|
| EXPY | Termination of patent right or utility model |