CN205841259U - A kind of fan for cooling tower - Google Patents
A kind of fan for cooling tower Download PDFInfo
- Publication number
- CN205841259U CN205841259U CN201620695750.XU CN201620695750U CN205841259U CN 205841259 U CN205841259 U CN 205841259U CN 201620695750 U CN201620695750 U CN 201620695750U CN 205841259 U CN205841259 U CN 205841259U
- Authority
- CN
- China
- Prior art keywords
- flabellum
- fan
- cooling tower
- fan frame
- frame
- Prior art date
- 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 - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of fan for cooling tower, including fan frame, flabellum, driving motor and protective cover, fan frame is arranged on cooling tower top, motor is driven to be fixedly connected on fan frame base, the center of rotation of flabellum be arranged on drive motor output shaft on and with output shaft conllinear, being provided with multiple balancing patch, flabellum and radial clearance is flabellum diameter 1%～the 8% of fan frame at flabellum leaf margin, protective cover covers whole flabellum and is flexibly connected with fan frame.Compared with prior art, this utility model, by flabellum is carried out pre-balance, sets up balancing patch, reduces the amount of unbalance of flabellum, can effectively promote fan running stability, reduces beat and vibration, plays Noise Reduction；Low-frequency resonance region can be effectively avoided in the design of odd number sheet flabellum and even number pole motor, reduces resonance risk；Reasonably fan frame is effectively reduced turbulent phenomenon with the radial clearance of flabellum, reduces aerodynamic noise, promotes fan sound quality；Therefore, there is the most wide application prospect.
Description
Technical field
This utility model relates to a kind of fan, specifically, relates to a kind of fan for cooling tower, belongs to industrial equipment
Technical field.
Background technology
Cooling tower fan product is widely used in the national economy all trades and professions such as oil, electric power, chemical industry, metallurgy and mine
In water-cooling circulation cooling system, in recent years, constantly improving and developing and maximization demand along with blower fan of cooling tower technology, raw
Produce simple in construction, easy installation and removal, safe and reliable, environmental protection quiet cooling tower fan, it has also become each big blower fan produces
The problem that producer must take into and solves.
Existing cooling tower fan in operation process owing to blade is by self gravitation and aerodynamic double influence
Can produce an out-of-balance force, flabellum there will be axial float under the influence of out-of-balance force, causes fan body vibration, thus produces
Raw Kuanping Terrane, ear sense is very uncomfortable, the biggest to Health Impact；Additionally, some cooling tower fans because of the flabellum number of blade with
Motor number of poles mismatch and cause flabellum and motor that covibration occurs, expand noise source further；The fan also having
Radial clearance design between frame and flabellum is improper so that producing obvious backflow phenomenon at flabellum blade tip, turbulent flow is at fan
Frame runner inside turn, occurs fierceness to clash into fan frame runner and produces obvious turbulent flow noise, and above-mentioned several design defect are not only
Can produce noise, affect the biggest on the service life of fan, economic benefit is extremely low, therefore, and a kind of reasonable in design, environmental protection
Quiet, widely applicable cooling tower fan is urgently released.
Utility model content
The problems referred to above existed for prior art, the purpose of this utility model is to provide a kind of wind for cooling tower
Fan, solves existing cooling tower fan because of the structure unreasonable problem that the noise caused is excessive and service life is relatively low of design.
For realizing above-mentioned utility model purpose, the technical solution adopted in the utility model is as follows:
A kind of fan for cooling tower, including fan frame, flabellum, driving motor and protective cover, wherein, fan frame is arranged on cold
But top of tower, drives motor to be fixedly connected on fan frame base, and the center of rotation of flabellum is arranged on the output shaft driving motor
And with output shaft conllinear, flabellum through balancing machine balance after at leaf margin, be provided with multiple balancing patch, whole flabellum can be reduced not
Aequum, makes flabellum keep dynamic equilibrium state in operation process, to reduce beat and vibration, and flabellum and the radial clearance of fan frame
For the 1%～8% of flabellum diameter, can be prevented effectively from backflow phenomenon, protective cover covers whole flabellum and is flexibly connected with fan frame.
Preferably, the stainless steel that cost performance is high all selected by the fan frame of fan, flabellum and protective cover.
Preferably, fan frame is flange frame, is symmetrically arranged with four installing holes at the corner of fan frame, and fan frame passes through matching screw
It is spirally connected with cooling tower top.
It is highly preferred that be provided with one layer of cushion between fan frame and cooling tower top, can reduce because of fan vibration further
And the noise produced.
It is further preferred that in view of material cost and economic benefit, cushion uses the Rubber shock-absorbing pad that cost performance is high.
Preferably, driving motor is quadrupole motor, has preferably work efficiency.
It is highly preferred that the lobe numbers of flabellum is three, five or seven, it is contemplated that the applied environment of cooling tower and reality
Solving the thermal efficiency, the lobe numbers of flabellum elects three as, and odd number sheet flabellum can effectively avoid low-frequency resonance district with even number pole motor
Territory, reduces resonance risk.
Preferably, flabellum is provided with multiple balancing patch after balancing machine balances at leaf margin, welds between balancing patch and flabellum
Connect, to guarantee the connective stability during using and reliability.
Preferably, flabellum is set to the 2%～5% of flabellum diameter with the radial clearance of fan frame, is effectively reduced backflow existing
As, reduce aerodynamic noise.
Preferably, protective cover covers whole flabellum and is spirally connected with fan frame, is beneficial for disassembly and assembly and overhauls.
Relative to prior art, the beneficial effects of the utility model are: by flabellum is carried out pre-balance, set up balance
Sheet, reduces the amount of unbalance of flabellum, can effectively promote fan running stability, reduces beat and vibration, thus plays noise reduction
Effect；Additionally, low-frequency resonance region can be effectively avoided in the design of odd number sheet flabellum and even number pole motor, reduce resonance risk；Close
The fan frame of reason is effectively reduced turbulent phenomenon with the radial clearance of flabellum, reduces aerodynamic noise, promotes fan sound quality, reaches
High-efficiency long-life, the purpose of environmental protection silent.Therefore, there is the most wide application prospect and splendid promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fan preferred embodiment for cooling tower that this utility model provides.
Detailed description of the invention
Make this utility model with preferred embodiment below in conjunction with the accompanying drawings further to illustrate detailed completely.
The preferred embodiment structural representation of a kind of fan for cooling tower that Fig. 1 provides for this utility model.Such as Fig. 1
Shown in, this fan being used for cooling tower includes fan frame 1, flabellum 2, drives motor 3 and protective cover 4, wherein, fan frame 1, flabellum 2 and
The stainless steel that cost performance is high all selected by protective cover 4.Fan frame 1 is flange frame, is symmetrically arranged with four peaces at the corner of fan frame 1
Dress hole (unmarked in figure), fan frame 1 is spirally connected by the top of matching screw 7 with cooling tower 5.Driving motor 3 is quadrupole motor, tool
There is preferably work efficiency, drive motor 3 to be screwed and be connected on fan frame 1 base；The center of rotation of flabellum 2 is arranged on
Drive motor 3 output shaft 31 on and with output shaft 31 conllinear, the number of blade of flabellum 2 is three, with even number pole drive motor 3 take
Join, can effectively avoid low-frequency resonance region, reduce resonance risk.Flabellum 2 is provided with multiple after balancing machine balances at leaf margin
Balancing patch 21, welds between balancing patch 21 with flabellum 2, can reduce the amount of unbalance of whole flabellum 2, makes flabellum 2 at operation process
Middle holding dynamic equilibrium state, to reduce beat and vibration, reduces noise.It is straight that flabellum 2 and the radial clearance of fan frame 1 elect flabellum 2 as
The 4% of footpath, can be prevented effectively from backflow phenomenon, and whole flabellum 2 is covered and is spirally connected with fan frame 1 by protective cover 4, is beneficial for disassembly and assembly and examines
Repair.
It is noted that one layer of Rubber shock-absorbing pad 6 also can be set up between fan frame 1 and cooling tower 5 top, can drop further
The low noise produced because of fan vibration.
This is used for the fan of cooling tower by flabellum is carried out pre-balance, sets up balancing patch, reduces the imbalance of flabellum
Amount, is effectively improved the run stability of fan, reduces beat and vibration, serve the effect of noise reduction；Odd number sheet flabellum with
The design of even number pole motor effectively avoids low-frequency resonance region, reduces resonance risk；Reasonably fan frame and the radial direction of flabellum
Gap effectively reduces turbulent phenomenon, reduces aerodynamic noise, improves fan sound quality, great application prospect and promotion price
Value.
Finally it is necessary described herein: above example is served only for making the technical solution of the utility model further
Explaining, it is impossible to be interpreted as the restriction to this utility model protection domain, those skilled in the art is new according to this practicality
Some nonessential improvement and adjustment that the foregoing of type is made belong to protection domain of the present utility model.
Claims (10)
1. the fan for cooling tower, it is characterised in that: including fan frame, flabellum, driving motor and protective cover, fan frame is installed
At cooling tower top, driving motor to be fixedly connected on fan frame base, the center of rotation of flabellum is arranged on the output driving motor
On axle and with output shaft conllinear, flabellum is provided with multiple balancing patch after balancing machine balances at leaf margin, the footpath of flabellum and fan frame
Being the 1%～8% of flabellum diameter to gap, protective cover covers whole flabellum and is flexibly connected with fan frame.
Fan for cooling tower the most according to claim 1, it is characterised in that: the fan frame of fan, flabellum and protective cover
All select stainless steel.
Fan for cooling tower the most according to claim 1, it is characterised in that: fan frame is flange frame, the corner of fan frame
Place is symmetrically arranged with four installing holes, and fan frame is spirally connected with cooling tower top by matching screw.
Fan for cooling tower the most according to claim 1, it is characterised in that: arrange between fan frame and cooling tower top
There is one layer of cushion.
Fan for cooling tower the most according to claim 4, it is characterised in that: cushion uses Rubber shock-absorbing pad.
Fan for cooling tower the most according to claim 1, it is characterised in that: driving motor is quadrupole motor.
Fan for cooling tower the most according to claim 6, it is characterised in that: the lobe numbers of flabellum is three, five
Sheet or seven.
Fan for cooling tower the most according to claim 1, it is characterised in that: weld between balancing patch with flabellum.
Fan for cooling tower the most according to claim 1, it is characterised in that: flabellum is arranged with the radial clearance of fan frame
For flabellum diameter 2%～5%.
Fan for cooling tower the most according to claim 1, it is characterised in that: protective cover cover whole flabellum and with
Fan frame is spirally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620695750.XU CN205841259U (en) | 2016-06-27 | 2016-06-27 | A kind of fan for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620695750.XU CN205841259U (en) | 2016-06-27 | 2016-06-27 | A kind of fan for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841259U true CN205841259U (en) | 2016-12-28 |
Family
ID=58149692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620695750.XU Expired - Fee Related CN205841259U (en) | 2016-06-27 | 2016-06-27 | A kind of fan for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837884A (en) * | 2017-03-01 | 2017-06-13 | 北京计算机技术及应用研究所 | It is a kind of to reduce the structure that axial flow blower installs deformation |
-
2016
- 2016-06-27 CN CN201620695750.XU patent/CN205841259U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837884A (en) * | 2017-03-01 | 2017-06-13 | 北京计算机技术及应用研究所 | It is a kind of to reduce the structure that axial flow blower installs deformation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20210627 |