CN204878020U - Centrifugal fan device - Google Patents
Centrifugal fan device Download PDFInfo
- Publication number
- CN204878020U CN204878020U CN201520559519.3U CN201520559519U CN204878020U CN 204878020 U CN204878020 U CN 204878020U CN 201520559519 U CN201520559519 U CN 201520559519U CN 204878020 U CN204878020 U CN 204878020U
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- China
- Prior art keywords
- casing
- retainer
- coupling
- main shaft
- transmission seat
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Links
- 230000008878 coupling Effects 0.000 claims abstract description 44
- 238000010168 coupling process Methods 0.000 claims abstract description 44
- 238000005859 coupling reaction Methods 0.000 claims abstract description 44
- 239000004575 stone Substances 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 5
- 238000005272 metallurgy Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 7
- 239000004071 soot Substances 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 239000012530 fluid Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010011469 Crying Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a be applied to the centrifugal fan device among the trade technical field such as metallurgy, mine, thermal power, boiler, includes casing upper portion, revolves to sign, product data plate, air intake compensator, air regulation valve, hoisting accessory, air inlet oral area, impeller portion, bearing frame portion, main shaft, shaft coupling protection casing, shaft coupling, motor, transmission seat. , transmission seat. Rag bolt, casing stabilizer blade, casing rag bolt, soot door, casing lower part, air outlet its characterized in that: fix transmission seat. On the basis with transmission seat. Rag bolt, at transmission seat. Installation motor, the output shaft of shaft coupling and motor, the shaft coupling protection casing is installed in the shaft coupling top to fix on transmission seat. , support the main shaft and fix on transmission seat. The one end and the coupling joint of main shaft with bearing frame portion by bearing frame portion. The utility model discloses a simple structure, manufacturing process is reasonable, and the 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, can obtain great static pressure in the exit of fan.
Description
Technical field
The utility model relates to a kind of centrifugal fan device in the industry technology fields such as metallurgy, mine, thermal power generation, boiler.
Background technique
At present, centrifugal blower, is generally used for forge and high pressure forced ventilation, and can be widely used in the gas that conveying material, conveying air and non-corrosiveness are natural, do not contain stickum.Medium temperature is generally no more than 50
0c(is the highest is no more than 80
0c), in medium, contained dust and hard particles are not more than 150mg/m.Logical, the draught fan system that boiler is logical, induced draught fan is applicable to 2 ~ 670t/h steam boiler in thermal power plant.When without other particular/special requirements, G4-73 also can be used for mine ventilation and generally ventilate.What boiler sent induced draught fan to be mainly used for thermal power plant 2t/h-670t/h steam boiler send induced draught system, also meets the demand of fluid bed furnace high-head performance parameter.This serial fan also can be used for dedusting, mine ventilation and general ventilation system.The medium of gas fan conveying is air, and the medium of induced draught fan conveying is the gas of flue gas or impure particle.Impure concentration is less than 200mg/m
3time long service life.Also can use greatly as impure, but working life shortens relatively.Send induced draught fan maximum operation (service) temperature must not more than 250
0c.Centrifugal blower critical piece is casing, impeller, arbor, intakeport, relief opening.General employing backward type blade is streamlined during rotation, and the shock between gas and blade is light, and the loss of energy is less, noise is less, and efficiency is higher.But the gas flow rate that backward type blade is thrown out is lower, the dynamic pressure that gas obtains is lower, and after discharging from blower fan, static pressure is also lower.And adopting forward-type blade, during rotation, air-flow is not steady, clashes into violent, and energy loss is large, noise is large, efficiency is low.But the gas flow rate that forward-type blade is thrown out is high, larger static pressure can be obtained in the outlet port of blower fan.
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 centrifugal fan device is new problem anxious to be resolved always.
Summary of the invention
The purpose of this utility model provides a kind of centrifugal fan device, and this model utility structure is simple, and 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, and gas flow rate is high, can obtain larger static pressure in the outlet port of blower fan.
The purpose of this utility model is achieved in that a kind of centrifugal fan device, comprises casing top, rotation direction direction board, product nameplate, intake grill compensator, volume damper, boom hoisting, air intake oral area, impeller portion, bearing support part, main shaft, coupler protective casing, coupling, motor, retainer, retainer stone bolt, casing leg, casing stone bolt, deashing door, casing bottom, exhaust outlet, with retainer stone bolt, retainer is fixed on basis, at retainer, motor is installed, coupling is connected with the output shaft of motor, coupler protective casing is arranged on above coupling, and be fixed on retainer, by bearing support part supports main shaft bearing support part is fixed on retainer, one end of main shaft is connected with coupling, the other end of main shaft is connected with impeller portion, casing bottom is connected with casing leg, casing leg casing stone bolt is fixed on basis, casing bottom is installed casing top, air port portion and intake grill compensator is installed at casing top left part, air intake oral area installs volume damper, boom hoisting is installed on casing top, casing top is installed rotation direction direction board and product nameplate, in the side of casing bottom, deashing door is installed, opposite side in casing bottom installs exhaust outlet,
Described casing top and casing bottom general steel plate welding forming volute housing entirety; Described air intake oral area makes the fairshaped overall structure of reducing-pitch thread, is fixed by bolts in front shroud group.
Main points of the present utility model are its structure.The working principle of described centrifugal fan device is that impeller produces centrifugal force when rotated, is thrown away by air from impeller, and collect in casing, pressure is high, discharges from exhaust outlet.After air in impeller is discharged, define negative pressure, pull ambient atmos and supplement in blower fan; The pattern of impeller upper blade is very large to the performance impact of ventilator, the track that the end of blade rotates forwards does a tangent line, a tangent line is done again from the end of blade itself, article two, the angle of cut of tangent line represents with β, β >90 ° is called backward type blade, β <90 ° is called forward-type blade, and β is called radial vane close to 90 °.
A kind of centrifugal fan device 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 in the outlet port of blower fan, will be widely used in the industry technology fields such as metallurgy, mine, thermal power generation, boiler.
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.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the structural representation of the utility model embodiment three.
Fig. 6 is the left view of Fig. 5.
Embodiment
Embodiment one
With reference to accompanying drawing, a kind of centrifugal fan device, comprises casing top 1, rotation direction direction board 2, product nameplate 3, intake grill compensator 4, volume damper 5, boom hoisting 6, air intake oral area 7, impeller portion 8, bearing support part 9, main shaft 10, coupler protective casing 11, coupling 12, motor 13, retainer 14, retainer stone bolt 15, casing leg 16, casing stone bolt 17, deashing door (access door) 18, casing bottom 19, exhaust outlet 20, with retainer stone bolt 15, retainer 14 is fixed on basis, at retainer 14, motor 13 is installed, coupling 12 is connected with the output shaft of motor 13, coupler protective casing 11 is arranged on above coupling 12, and be fixed on retainer 14, by bearing support part 9 supports main shaft 10 bearing support part 9 is fixed on retainer 14, one end of main shaft 10 is connected with coupling 12, the other end of main shaft 10 is connected with impeller portion 8, casing bottom 19 is connected with casing leg 16, casing leg 16 casing stone bolt 17 is fixed on basis, casing bottom 19 is installed casing top 1, air port portion 7 and intake grill compensator 4 is installed at casing top 1 left part, air intake oral area 7 is installed volume damper 5, casing top 1 is installed boom hoisting 6, casing top 1 is installed rotation direction direction board 2 and product nameplate 3, in the side of casing bottom 19, deashing door (access door) 18 is installed, opposite side in casing bottom 19 installs exhaust outlet 20.
Described casing top 1 and casing bottom 19 general steel plate welding forming volute housing entirety; Described air intake oral area 7 makes the fairshaped overall structure of reducing-pitch thread, is fixed by bolts in front shroud group.
Embodiment two
With reference to accompanying drawing, a kind of centrifugal fan device, comprises casing top 21, rotation direction direction board 22, product nameplate 23, volume damper 24, air intake oral area 25, impeller portion 26, bearing support casing 27, main shaft 28, first coupler protective casing 29, first coupling 30, fluid coupling 31, second coupler protective casing 32, second coupling 33, motor 34, foundation bolt for motor 35, fluid coupling stone bolt 36, bearing support casing stone bolt 37, bearing support cabinet base 38, casing stone bolt 39, deashing door (access door) 40, casing bottom 41, exhaust outlet is around property joint 42, with foundation bolt for motor 35, motor 34 is fixed on basis, second coupling 33 is connected with the output shaft of motor 34, one end of fluid coupling 31 is connected with the second coupling 33, the other end of fluid coupling 31 is connected with the first coupling 30, with fluid coupling stone bolt 36, fluid coupling 31 is fixed on basis, second coupler protective casing 32 is arranged on above the second coupling 33, and be fixed on fluid coupling 31, first coupler protective casing 29 is arranged on above the first coupling 30, and be fixed on fluid coupling 31, bearing support cabinet base 38 bearing support casing stone bolt 37 is fixed on basis, by bearing support casing 27 supports main shaft 28 bearing support casing 27 is fixed on bearing support cabinet base 38, one end of main shaft 28 is connected with the first coupling 30, the other end of main shaft 28 is connected with impeller portion 26, casing bottom 41 casing stone bolt 39 is fixed on basis, casing bottom 41 is installed casing top 21, air port portion 25 and volume damper 24 is installed at casing top 21 left part, casing top 21 is installed rotation direction direction board 22 and product nameplate 23, in the side of casing bottom 41, deashing door (access door) 40 is installed, opposite side in casing bottom 39 installs exhaust outlet around property joint 42.
Described casing top 21 and casing bottom 41 general steel plate welding forming volute housing entirety; Described air intake oral area 25 makes the fairshaped overall structure of reducing-pitch thread, is fixed by bolts in front shroud group.
Embodiment three
With reference to accompanying drawing, a kind of centrifugal fan device, comprises product nameplate 51, boom hoisting 52, rotation direction direction board 53, shell part 54, front shroud 55, volume damper 56, air intake oral area 57, impeller portion 58, three corner steadies 59, bearing support casing coupling 60, main shaft 61, coupler protective casing 62, coupling 63, motor 64, integral vibration damping platform 65, spring cushion 66, electric actuator 67, spring cushion 66 is installed integral vibration damping platform 65, integral vibration damping platform 65 is installed motor 64, coupling 63 is connected with the output shaft of motor 64, coupler protective casing 62 is arranged on above coupling 63, bearing support casing coupling 60 is fixed on integral vibration damping platform 65 by bearing support casing coupling 60 supports main shaft 61, one end of main shaft 61 is connected with coupling 63, the other end of main shaft 61 is connected with impeller portion 58, shell part 54 is arranged on integral vibration damping platform 65, three corner steadies 59 are connected with shell part 54 and integral vibration damping platform 65, front shroud 55 in shell part 54, volume damper 56, air intake oral area 57, shell part 54 is installed product nameplate 51, boom hoisting 52, rotation direction direction board 53.
Described shell part 54 is overall with general steel plate welding forming volute housing; Described air intake oral area 57 makes the fairshaped overall structure of reducing-pitch thread, is fixed by bolts on front shroud 55 groups.
Be described in further detail the utility model below:
The working principle of described centrifugal fan device is that impeller produces centrifugal force when rotated, is thrown away by air from impeller, and collect in casing, pressure is high, discharges from exhaust outlet.After air in impeller is discharged, define negative pressure, pull ambient atmos and supplement in blower fan; The pattern of impeller upper blade is very large to the performance impact of ventilator, the track that the end of blade rotates forwards does a tangent line, a tangent line is done again from the end of blade itself, article two, the angle of cut of tangent line represents with β, β >90 ° is called backward type blade, β <90 ° is called forward-type blade, and β is called radial vane close to 90 °.
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.Notice 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.The running in of blower fan: the preliminary operation of (1) blower fan should carry out in no-load (closing admission line gate or adjustment doors).(2) as working order is good, then the running under full and down (regulation total head and flow) is proceeded to.(3) full and down running, is no less than 2 hours to new blower fan of installing, installs blower fan be no less than half an hour to repairing.
Claims (2)
1. a centrifugal fan device, comprises casing top, rotation direction direction board, product nameplate, intake grill compensator, volume damper, boom hoisting, air intake oral area, impeller portion, bearing support part, main shaft, coupler protective casing, coupling, motor, retainer, retainer stone bolt, casing leg, casing stone bolt, deashing door, casing bottom, exhaust outlet, it is characterized in that: with retainer stone bolt, retainer is fixed on basis, at retainer, motor is installed, coupling is connected with the output shaft of motor, coupler protective casing is arranged on above coupling, and be fixed on retainer, by bearing support part supports main shaft bearing support part is fixed on retainer, one end of main shaft is connected with coupling, the other end of main shaft is connected with impeller portion, casing bottom is connected with casing leg, casing leg casing stone bolt is fixed on basis, casing bottom is installed casing top, air port portion and intake grill compensator is installed at casing top left part, air intake oral area installs volume damper, boom hoisting is installed on casing top, casing top is installed rotation direction direction board and product nameplate, in the side of casing bottom, deashing door is installed, opposite side in casing bottom installs exhaust outlet.
2. a kind of centrifugal fan device according to claim 1, is characterized in that: described casing top and casing bottom general steel plate welding forming volute housing entirety; Described air intake oral area makes the fairshaped overall structure of reducing-pitch thread, is fixed by bolts in front shroud group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559519.3U CN204878020U (en) | 2015-07-30 | 2015-07-30 | Centrifugal fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559519.3U CN204878020U (en) | 2015-07-30 | 2015-07-30 | Centrifugal fan device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878020U true CN204878020U (en) | 2015-12-16 |
Family
ID=54822399
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520559519.3U Expired - Fee Related CN204878020U (en) | 2015-07-30 | 2015-07-30 | Centrifugal fan device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989664A (en) * | 2015-07-30 | 2015-10-21 | 沈阳盛纳机械制造有限公司 | A centrifugal fan device |
-
2015
- 2015-07-30 CN CN201520559519.3U patent/CN204878020U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989664A (en) * | 2015-07-30 | 2015-10-21 | 沈阳盛纳机械制造有限公司 | A centrifugal fan device |
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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: 20151216 |