CN105822567B - dry quenching circulating fan model - Google Patents
dry quenching circulating fan model Download PDFInfo
- Publication number
- CN105822567B CN105822567B CN201610216577.5A CN201610216577A CN105822567B CN 105822567 B CN105822567 B CN 105822567B CN 201610216577 A CN201610216577 A CN 201610216577A CN 105822567 B CN105822567 B CN 105822567B
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- Prior art keywords
- casing
- plate
- dry quenching
- blade
- circulating fan
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to Dry Quenching Technology fields, disclose a kind of dry quenching circulating fan model, it include: casing and impeller, air inlet and transmission group in casing, the impeller includes: wheel hub, plate wheel cap, plate wheel disc and several backward plate blades, the backward plate blade is welded between plate wheel cap and plate wheel disc, and it is uniformly distributed, the plate wheel disc is assemblied on wheel hub, and the axis of plate wheel disc and wheel hub is on the same line, the axis connection of wheel hub and transmission group, the air inlet is connected with casing, and is located at the side of the transmission group.The blade of the impeller of the dry quenching circulating fan model of the present embodiment be after to plate blade, therefore fan operation point is far from turbulent area, and motor is not easy to overload, and operational efficiency is improved.
Description
Technical field
The present invention relates to Dry Quenching Technology field, in particular to a kind of dry quenching circulating fan model.
Background technique
For dry coke quenching is with respect to coke wet quenching, refer to a kind of quenching side of red burnt cooling down using inert gas
Method.Dry quenching system is mainly by coke dry quenching furnace, charging apparatus, discharging device for coke, elevator, electric locomotive, burnt tank trolley, burnt tank, primary
Deduster, coke dry quenching boiler unit, circulating fan, dedusting earth station, water process unit, automatically controls part at secondary filter
And the composition such as power generation part.
The red burnt circular rotating coke tank by burnt tank trolley released from carbonization chamber receives, and burnt tank trolley is by locomotive haulage
To dry coke quenching lift headframe bottom, burnt tank is promoted at the top of lift headframe by elevator；Elevator hangs burnt tank to coke dry quenching furnace
It during center translation, is automatically opened with the bell that charging apparatus is linked together by electric cylinder, the burnt funnel of dress is put into dry automatically
Put out furnace top；The burnt tank that elevator is put down is received by the Jiao Guantai of charging apparatus, during elevator decline, Jiao Guandizha
Door automatically opens, and starts to be packed into red coke；After red coke installs, elevator lifts automatically, and burnt tank is sent to the sky of lift headframe bottom
On burnt tank trolley, charging apparatus automatic running closes bell during this period.
Be packed into coke dry quenching furnace red coke, after prestoring section and prestoring a period of time, with coke discharging carry out gradually decrease to cool down
Section is cooled down and carrying out heat exchange with recyclegas in cooling section, then is discharged through vibra feeder, rotary seal valve, chute,
Then it is transported by Special belt transporter.The recyclegas of cooling coke, after coke dry quenching furnace cooling section and red burnt progress heat exchange
Temperature increases, and coke dry quenching furnace is discharged through ring-shaped flue.High temperature circulation gas is laggard by disposable dust remover separation coarse granule coke powder
Entering coke dry quenching boiler and carries out heat exchange, boiler generates steam, and the low-temperature circulating gas that temperature is down to about 160 DEG C is come out by boiler,
After the further separate fine particles coke powder of secondary filter, feed water preheater is sent by circulating fan and is cooled to about 130 DEG C, then
It is recycled into coke dry quenching furnace.Temperature is generally run at 180 DEG C or so in actual use, may operate in 200 DEG C in short-term.
Dry quenching circulating fan is the core equipment of steel mill's dry quenching system, provides power for dry quenching system gas circulation
And according to Operating condition adjustment rotational speed regulation air circulation.Dry coke quenching is in terms of energy-saving and environmental protection and improvement better than tradition
Coke wet quenching, to energy saving, preserving the ecological environment, protect human health etc. is of great significance.With economic development, with
Energy-saving and environment-friendly requirements at the higher level, existing blower model such as BB24, BB50,4-73,4-72,9-19,9-26,5-48,6-
48 equal series of products much can not meet increasingly developed market needs.The impeller operating point of these blowers close to turbulent area,
Zero dimensional performance curve is steep, high efficient district narrow range, and motor is easy overload, causes operational efficiency low.
Summary of the invention
The present invention proposes a kind of dry quenching circulating fan model, solve in the prior art impeller operating point close to turbulent flow
Area, zero dimensional performance curve is steep, high efficient district narrow range, and motor is easy overload, the low problem of operational efficiency.
Dry quenching circulating fan model of the invention, comprising: casing and impeller, air inlet and transmission in casing
Group, the impeller include: wheel hub, plate wheel cap, plate wheel disc and several backward plate blades, the backward plate blade welding
It between plate wheel cap and plate wheel disc, and is uniformly distributed, the plate wheel disc is assemblied on wheel hub, and plate wheel disc and wheel hub
Axis on the same line, the axis connection of wheel hub and transmission group, the air inlet is connected with casing, and be located at the transmission group
Side.
Wherein, blade exit diameter is 950~1050mm, and vane inlet diameter is 520~520.5mm, and vane inlet is wide
Degree is 143~144mm, and blade exit width is 69~70mm, and outlet blade angle is 42 °~43 °；
Air inlet diameter is 705~710mm, axial length is 235~237.5mm；
Casing 292~296mm of width, casing outlet center to casing center are that distance is 715~719mm, casing outlet
For the rectangular of 592mm × 296mm.
Wherein, blade exit diameter is 1000mm, and vane inlet diameter is 520.3mm, and vane inlet width is
143.5mm, blade exit width are 69.5mm, and outlet blade angle is 42.4 °；
Air inlet diameter is 710mm, axial length 237.5mm；
Casing width 296mm, it is 719mm that casing outlet center to casing center, which is distance,.
Wherein, backward plate blade is 12.
Wherein, the casing is the volute body that plate is welded, and air inlet is to be welded by plate, and molded line is edge
The cone arc axially converged.
The blade of the impeller of the dry quenching circulating fan model of the present embodiment be after to plate blade, therefore blower model is transported
Row point is far from turbulent area, and zero dimensional performance curve is gentle, high efficient district is wide, noise is low, and motor is not easy to overload, and operational efficiency obtains
It improves.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of dry quenching circulating fan model structure schematic diagram of the invention；
Fig. 2 is the shell shape figure of the dry quenching circulating fan model of Fig. 1；
Fig. 3 is the blade wheel structure schematic diagram of the dry quenching circulating fan model of Fig. 1；
Fig. 4 is the right view of Fig. 3；
Fig. 5 is the zero dimensional performance curve figure of dry quenching circulating fan model of the invention, is followed successively by efficiency from top to bottom
Curve, pressure curve, power curve, wherein φ is discharge coefficient, ψ is coefficient of total pressure, λ is power coefficient, η r impeller adiabatic efficiency.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The dry quenching circulating fan model of the present embodiment as shown in figures 1-4, including casing 1, impeller 2, air inlet 3 and pass
Dynamic group 4.Transmission group 4 includes the existing structures such as main shaft, bearing housing.If impeller include: wheel hub 8, plate wheel cap 6, plate wheel disc 7 and
To plate blade 5 after dry, 12 backward plate blades 5 are shown in Fig. 4.Backward plate blade 5 is welded in plate wheel cap 6 and puts down
It between web wheel disk 7, and is uniformly distributed, plate wheel disc 7 is assemblied on wheel hub 8.The axis of plate wheel disc 7 and wheel hub 8 is the same as always
On line.Wheel hub 8 is connect with the main shaft of transmission group 4, and air inlet 3 is connected with casing 1, and is located at the side of transmission group 4.
As shown in arrow in Fig. 1~3, impeller 2 rotates under the driving of transmission group 4, air from 3 intake impeller 2 of air inlet,
Enter casing 1 from the outlet of impeller 2.To plate blade after being due to the blade 5 of impeller 2, blower model running point is separate
Turbulent area, zero dimensional performance curve is gentle, high efficient district is wide, noise is low and motor is not easy to overload, and operational efficiency is improved.
Casing 1 is the volute body 1 that plate is welded, and air inlet 3 is welded by plate, and molded line is that edge axially converges
Cone arc so that air intake efficiency is higher.
Flow passage component main feature:
Blade exit diameter is 950~1050mm, and vane inlet diameter is 520~520.5mm, and vane inlet width is
143~144mm, blade exit width are 69~70mm, and outlet blade angle is 42 °~43 °.
Air inlet diameter is 705~710mm, width is 235~237.5mm.
Casing 292~296mm of width, casing outlet center to casing center are that distance is 715~719mm, casing outlet
For the rectangular of 592mm × 296mm.
Under above-mentioned design size, blower model running point more far from turbulent area, zero dimensional performance curve is gentler,
High efficient district is wider.Especially inlet blade angle meets actual airflow flow direction, and vane inlet abrasion is minimum, with similar blower phase
Than with optimal aeroperformance.
Preferably, blade exit diameter is 1000mm, and vane inlet diameter is 520.3mm, and vane inlet width is
143.5mm, blade exit width are 69.5mm, and outlet blade angle is 42.4 °；Air inlet diameter is 710mm, and axial length is
237.5mm；Casing width 296mm, it is 719mm that casing outlet center to casing center, which is distance,.
Since Fan Product series is designed by blower modeling, any machine product of flow passage component design is equal
Within protection, it can be zoomed in or out on year-on-year basis by the impeller, air inlet, chassis size and series of products are made.
As shown in figure 5, the zero dimensional performance curve and parameter attribute of the dry quenching circulating fan model of the present embodiment: flow
Coefficient φ is 0.07284, and coefficient of total pressure ψ is 0.48465, and power coefficient λ is 0.04158, and impeller adiabatic efficiency η r is 83.911%.
Citing 1: certain dry quenching system fan design parameter: atmospheric pressure Pa is 101325Pa；Atmospheric density ρ is 1.2kg/
m3；Flow is 52000 (m3/h)；Total pressure is 7500 (Pa).
Selecting type scheme 1: if the not dry quenching circulating fan model of the present embodiment, to meet the above parameter can only select 6-
29 serial (revolving speed n=1450r/min).
Selecting type scheme 2: in dry quenching circulating fan model (the revolving speed n=of certain optional the present embodiment of non dimensional curve section
1450r/min)。
Following table gives under same parameter, the dry quenching circulating fan model of the present embodiment and the performance pair of 6-29 type blower
Compare result, it can be seen that the blower model of the present embodiment is high with fan total efficiency, shaft power is small, wasted work is low and energy-efficient excellent
Gesture.
| Flow (m3/h) | Total pressure (Pa) | Total pressure efficiency (%) | Shaft power (Kw) | |
| 6-29№14.87D | 52000 | 7500 | 77.8 | 138.5 |
| The present embodiment | 52000 | 7500 | 83.2 | 129.5 |
| Deviation (%) | 0 | 0 | 6.94 | -6.5 |
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of dry quenching circulating fan model, comprising: casing and impeller, air inlet and transmission group in casing, it is special
Sign is that the impeller includes: wheel hub, plate wheel cap, plate wheel disc and several backward plate blades, the backward plate blade
Be welded between plate wheel cap and plate wheel disc, and be uniformly distributed, the plate wheel disc is assemblied on wheel hub, and plate wheel disc and
On the same line, the axis connection of wheel hub and transmission group, the air inlet is connected the axis of wheel hub with casing, and is located at the biography
The side of dynamic group, blade exit diameter are 950~1050mm, and vane inlet diameter is 520~520.5mm, vane inlet width
For 143~144mm, blade exit width is 69~70mm, and outlet blade angle is 42 °~43 °；
Air inlet diameter is 705~710mm, axial length is 235~237.5mm；
Casing 292~296mm of width, it is 715~719mm that casing outlet center to casing center, which is distance, and casing outlet is
592mm × 296mm's is rectangular.
2. dry quenching circulating fan model as described in claim 1, which is characterized in that blade exit diameter is 1000mm, leaf
Piece inlet diameter is 520.3mm, and vane inlet width is 143.5mm, and blade exit width is 69.5mm, and outlet blade angle is
42.4°；
Air inlet diameter is 710mm, axial length 237.5mm；
Casing width 296mm, it is 719mm that casing outlet center to casing center, which is distance,.
3. dry quenching circulating fan model as described in claim 1, which is characterized in that backward plate blade is 12.
4. dry quenching circulating fan model according to any one of claims 1 to 3, which is characterized in that the casing is plate
The volute body that material is welded, air inlet are to be welded by plate, and molded line is along the cone arc axially converged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216577.5A CN105822567B (en) | 2016-04-08 | 2016-04-08 | dry quenching circulating fan model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610216577.5A CN105822567B (en) | 2016-04-08 | 2016-04-08 | dry quenching circulating fan model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822567A CN105822567A (en) | 2016-08-03 |
| CN105822567B true CN105822567B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610216577.5A Active CN105822567B (en) | 2016-04-08 | 2016-04-08 | dry quenching circulating fan model |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106382239A (en) * | 2016-10-14 | 2017-02-08 | 重庆通用工业(集团)有限责任公司 | Anti-adhesion centrifugal ventilation machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345636B (en) * | 2010-08-03 | 2014-04-02 | 沈阳鼓风机研究所(有限公司) | Energy-saving circulating fluidized bed boiler fan series model |
| CN103321955A (en) * | 2013-05-08 | 2013-09-25 | 济南风机厂有限责任公司 | Energy-saving fan |
| CN203321881U (en) * | 2013-06-25 | 2013-12-04 | 济南风机厂有限责任公司 | Efficient and energy-saving fan series model |
| CN204299947U (en) * | 2014-11-08 | 2015-04-29 | 江阴市精亚风机有限公司 | Automatic winder energy-saving fan impeller |
| DE102015101938A1 (en) * | 2015-02-11 | 2016-08-11 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Fan wheel and fan |
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| CN105822567A (en) | 2016-08-03 |
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