CN201593523U - Blade structure of blower of cooling tower - Google Patents
Blade structure of blower of cooling tower Download PDFInfo
- Publication number
- CN201593523U CN201593523U CN2009202957110U CN200920295711U CN201593523U CN 201593523 U CN201593523 U CN 201593523U CN 2009202957110 U CN2009202957110 U CN 2009202957110U CN 200920295711 U CN200920295711 U CN 200920295711U CN 201593523 U CN201593523 U CN 201593523U
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- China
- Prior art keywords
- inner support
- steel pipe
- stainless steel
- support frame
- blower fan
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a blade structure of a blower of a cooling tower. The blade structure comprises a stainless-steel outer covering, a steel pipe, and a plurality of inner support racks, wherein the exterior of the steel pipe is processed through hot galvanizing; the steel pipe penetrates the inner support racks arranged uniformly, and is fixedly combined with the inner support racks into a whole body in a welding manner; the steel pipe and the inner support racks form a fish-bone structure; the stainless-steel outer covering is coated on the inner support racks and welded with the inner support racks; each inner support rack adopts a wing-shaped structure; the outer contour of each inner support rack comprises four tangent arc edges; and the radius of the first arc edge is 260 to 290mm, the radius of the second one is 4 to 6mm, the radius of the third one is 1700 to 1900mm, and the radius of the fourth one is 6 to 13mm. The utility model has the advantages of reasonable structure and corrosion resistance, and generates more wind volume and low noise during the operation under the same rotational speed of an aluminum alloy blower.
Description
Technical field
The utility model relates to fan manufacturing technology field, is specifically related to a kind of blower fan of cooling tower blade structure.
Background technique
Present blower fan of cooling tower blade all is to adopt the aluminum alloy material manufacturing mostly, and fan blade all is the structure that adopts individual layer, has following deficiency with this material and structure:
1, fan blade all is to adopt solid structure, and waste material causes the manufacture cost height, and weight is too big, causes transportation and installs very inconvenient.
2, be to adopt screw to connect between the petiole of fan blade and blower fan head, because this structure itself is antitorque and intensity bending resistance is lower, and the screw joint is the power transmission point of whole blade, therefore stress all concentrates on several screws joint, and blade can metal fatigue occur easily and rupture when requiring the long-time running of blower fan and produce big air quantity.And cooling tower generally is to be placed on outdoor main equipment, in case fan blade fracture will produce very big collapsing force, it is outer and cause peril to damage cooling tower even the blade tower that flies out.
3, the solid fan blade of individual layer is because the turbulent air flow that produces during running is big, therefore require air quantity big, when rotating speed is high, can produce very big noise.
4, cooling tower generally is installed in roof, and blower fan will be exposed to the sun and rain, and the fan blade that adopts aluminum alloy material to make is scrapped because of being corroded too early than being easier to.
The model utility content
The utility model is in order to overcome the deficiency that above prior art exists, and produces bigger air quantity and the low blower fan of cooling tower blade structure of noise than above-mentioned aluminum alloy blower fan under equal rotating speed when a kind of rational in infrastructure, corrosion-resistant, running is provided.
The purpose of this utility model realizes by following technological scheme: this blower fan of cooling tower blade structure, it is characterized in that: comprise steel pipe and several inner support frames that stainless steel exterior skin, appearance are handled through hot galvanizing, described steel pipe passes several evenly distributed inner support frames and makes its secure bond by welding is one, steel pipe and inner support frame form herring-bone form, and the stainless steel exterior skin envelopes inner support frame and welds with inner support frame;
Described inner support frame is an airfoil structure, the external frame of inner support frame comprises four tangent arc limits, and the radius on the first arc limit is 260～290mm, and the radius on the second arc limit is 4～6mm, the radius on the 3rd arc limit is 1700～1900mm, and the radius on the 4th arc limit is 6～13mm.
In order under equal rotating speed, to produce bigger air quantity, a side of described stainless steel exterior skin is provided with extension part, two sides that the stainless steel exterior skin is relative are provided with the sealing of stainless steel lid, and an end of steel pipe stretches out the stainless steel lid of a side to connect the blower fan head.
For easily manufactured, extension part and the stainless steel exterior skin structure that is formed in one, the end face of extension part and stainless steel exterior skin is tangent.
As a kind of preferred construction, described several inner support frames evenly are arranged in parallel, and spacing is 180～350mm.
According to actual needs, described inner support frame is 4～8.
As a kind of preferred construction, described inner support frame is provided with stiffening plate, and stiffening plate passes inner support frame and welds with inner support frame, and steel pipe passes stiffening plate and welds with stiffening plate.
For the ease of being connected with the blower fan head, the end that described steel pipe stretches out is provided with semicircle groove.
In order to reduce noise, the end of the end that described steel pipe stretches out is equipped with rubber stopper.
The material of described stainless steel exterior skin is a stainless steel, and the material of inner support frame is a stainless steel, and the material of stiffening plate is a hot galvanizing A3 steel plate, and the steel pipe that appearance is handled through hot galvanizing is a diameter 42mm hot galvanizing seamless steel pipe.
The utility model has following advantage with respect to prior art:
One, this blower fan of cooling tower blade structure, steel pipe passes several evenly distributed inner support frames and makes its secure bond by welding is one, steel pipe and inner support frame form herring-bone form, and the stainless steel exterior skin envelopes inner support frame and welds with inner support frame, and inner support frame is an airfoil structure.This structural design is ingenious, and it is low to produce bigger air quantity and noise than aluminum alloy blower fan under equal rotating speed during running, the energy utilization rate height.
Two, extension part and the stainless steel exterior skin structure that is formed in one, easily manufactured, the end face of extension part and stainless steel exterior skin is tangent, and structure is very slick and sly, and it is big to produce air quantity, reduces noise.
Three, to pass evenly distributed inner support frame and make its secure bond by welding be one to steel pipe, and steel pipe and inner support frame form herring-bone form, and structure is very firm, long service life.
Four, fan blade inside is hollow-core construction, and economical with materials reduces manufacture cost, and is in light weight, transports and install very convenient.
Five, exterior skin adopts stainless steel material to make, and is very corrosion-resistant, long service life.
Six, steel pipe is connected with nut by the threaded inverted U double-screw bolt of double end with the blower fan head, and an end of steel pipe is provided with semicircle groove, and the inverted U double-screw bolt pins semicircle groove.Such structural design has avoided joint stress to concentrate, and has avoided the situation of fatigue fracture, and this structure connects very firm, and installation and removal do not bother yet.
Description of drawings
Fig. 1 is the structural representation of a kind of blower fan of cooling tower blade structure of the utility model.
Fig. 2 is the planimetric map of inner support frame.
Fig. 3 is the sectional view of stainless steel exterior skin.
Fig. 4 is the internal structure schematic representation of fan blade.
Fig. 5 is the perspective view of Fig. 2.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
A kind of blower fan of cooling tower blade structure as shown in Figure 1 and Figure 4, comprise steel pipe 2 and 6 inner support frames 3 that stainless steel exterior skin 1, appearance are handled through hot galvanizing, steel pipe 2 passes 6 evenly distributed inner support frames 3 and makes its secure bond by welding is one, steel pipe 2 and inner support frame 3 form herring-bone form, and stainless steel exterior skin 1 envelopes inner support frame 3 and welds with inner support frame 3;
As shown in Figure 2, inner support frame 3 is an airfoil structure, and the external frame of inner support frame 3 comprises four tangent arc limits, and the radius on the first arc limit is 275mm, and the radius on the second arc limit is 5mm, and the radius on the 3rd arc limit is 1800mm, and the radius on the 4th arc limit is 9.5mm.
In order under equal rotating speed, to produce bigger air quantity, a side of stainless steel exterior skin 1 is provided with extension part 4, stainless steel exterior skin 1 two relative sides are provided with 5 sealings of stainless steel lid, and an end of steel pipe 2 stretches out the stainless steel lid 5 of a side to connect the blower fan head.
As shown in Figure 3, for easily manufactured, extension part 4 and stainless steel exterior skin 1 structure that is formed in one, extension part 4 is tangent with the end face of stainless steel exterior skin 1.
6 inner support frames 3 evenly are arranged in parallel, and spacing is 203mm.As shown in Figure 4 and Figure 5, inner support frame 3 is provided with stiffening plate 6, and stiffening plate 6 passes inner support frame 3 and welds with inner support frame 3, and steel pipe 2 passes stiffening plate 6 and welds with stiffening plate 6.
For the ease of being connected with the blower fan head, the end that steel pipe 2 stretches out is provided with 2 semicircle grooves 7.
In order to reduce noise, the end of the end that steel pipe 2 stretches out is equipped with rubber stopper 8.
The material of stainless steel exterior skin 1 is a stainless steel, and the material of inner support frame 3 is a stainless steel, and the material of stiffening plate 6 is a hot galvanizing A3 steel plate, and the steel pipe 2 that appearance is handled through hot galvanizing is a diameter 42mm hot galvanizing seamless steel pipe.
Above-mentioned embodiment is a preferred embodiment of the present utility model; can not limit claim of the present utility model; other any change that does not deviate from the technical solution of the utility model and made or other equivalent substitute mode are included within the protection domain of the present utility model.
Claims (9)
1. blower fan of cooling tower blade structure, it is characterized in that: comprise steel pipe and several inner support frames that stainless steel exterior skin, appearance are handled through hot galvanizing, described steel pipe passes several evenly distributed inner support frames and makes its secure bond by welding is one, steel pipe and inner support frame form herring-bone form, and the stainless steel exterior skin envelopes inner support frame and welds with inner support frame;
Described inner support frame is an airfoil structure, the external frame of inner support frame comprises four tangent arc limits, and the radius on the first arc limit is 260～290mm, and the radius on the second arc limit is 4～6mm, the radius on the 3rd arc limit is 1700～1900mm, and the radius on the 4th arc limit is 6～13mm.
2. blower fan of cooling tower blade structure according to claim 1, it is characterized in that: a side of described stainless steel exterior skin is provided with extension part, two sides that the stainless steel exterior skin is relative are provided with the sealing of stainless steel lid, and an end of steel pipe stretches out the stainless steel lid of a side to connect the blower fan head.
3. blower fan of cooling tower blade structure according to claim 2 is characterized in that: described extension part and the stainless steel exterior skin structure that is formed in one, the end face of extension part and stainless steel exterior skin is tangent.
4. blower fan of cooling tower blade structure according to claim 1 is characterized in that: described several inner support frames evenly are arranged in parallel, and spacing is 180～350mm.
5. blower fan of cooling tower blade structure according to claim 4 is characterized in that: described inner support frame is 4～8.
6. blower fan of cooling tower blade structure according to claim 1 is characterized in that: described inner support frame is provided with stiffening plate, and stiffening plate passes inner support frame and welds with inner support frame, and steel pipe passes stiffening plate and welds with stiffening plate.
7. blower fan of cooling tower blade structure according to claim 2 is characterized in that: the end that described steel pipe stretches out is provided with semicircle groove.
8. blower fan of cooling tower blade structure according to claim 2 is characterized in that: the end of the end that described steel pipe stretches out is equipped with rubber stopper.
9. blower fan of cooling tower blade structure according to claim 6, it is characterized in that: the material of described stainless steel exterior skin is a stainless steel, the material of inner support frame is a stainless steel, the material of stiffening plate is a hot galvanizing A3 steel plate, and the steel pipe that appearance is handled through hot galvanizing is a diameter 42mm hot galvanizing seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202957110U CN201593523U (en) | 2009-12-30 | 2009-12-30 | Blade structure of blower of cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202957110U CN201593523U (en) | 2009-12-30 | 2009-12-30 | Blade structure of blower of cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593523U true CN201593523U (en) | 2010-09-29 |
Family
ID=42775589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202957110U Expired - Lifetime CN201593523U (en) | 2009-12-30 | 2009-12-30 | Blade structure of blower of cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139552A (en) * | 2018-11-05 | 2019-01-04 | 威海克莱特菲尔风机股份有限公司 | A kind of airfoil type low noise axial fan blade |
-
2009
- 2009-12-30 CN CN2009202957110U patent/CN201593523U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139552A (en) * | 2018-11-05 | 2019-01-04 | 威海克莱特菲尔风机股份有限公司 | A kind of airfoil type low noise axial fan blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100929 |