CN101922469A - Centrifuged fan - Google Patents
Centrifuged fan Download PDFInfo
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- CN101922469A CN101922469A CN 201010131375 CN201010131375A CN101922469A CN 101922469 A CN101922469 A CN 101922469A CN 201010131375 CN201010131375 CN 201010131375 CN 201010131375 A CN201010131375 A CN 201010131375A CN 101922469 A CN101922469 A CN 101922469A
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- impeller
- bearing
- centrifugal blower
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Abstract
The invention provides a centrifuged fan. The diameter of an impeller is 2-4m; the impeller is made of WELDOX700 steel; the central part of a wheel disk is thicker than the peripheral part of the wheel disk; small blades are welded between impellers; blades are welded at the back side of the wheel disk; the centrifuged fan is composed of a hard alloy spindle, a supporting bearing, a thrust bearing and a double sealing member and the like; the centrifuged fan shell adopts the subdivision structure of a snail-shaped shell and is provided with an observation hole. The centrifuged fan has a high-strength rotary component, big impellers, high rotation speed, good ability in ventilation and large wind pressure, can lower the energy consumption of the unit volume, and is suitable for being used in large-scale projects.
Description
Technical field
The present invention relates to centrifugal blower, especially refer to a kind of large centrifugal fan with forced ventilation ability.
Background technique
Blower fan is extensive in sector applications such as power plant, mines, and in some major workss, large-scale centrifugal blower also has more application demand.Centrifugal blower generally comprises parts such as impeller, main shaft, bearing, Sealing, casing, intake grill (wind collecting unit), exhaust outlet, base, and wherein, impeller contains component such as blade, wheel disc, wheel cap.The large-scale concrete measure from draught fan impeller of manufacturing that adopts has both at home and abroad: 1. adopt high rotating speed technology, but impeller diameter generally can not be greater than 1000mm; Perhaps 2. adopt the major diameter technology, but the linear velocity of impeller is generally less than 130m/s; Therefore, the centrifugal blower that is used to make of this impeller in two, its ventilation is still big inadequately.3. number of patent application is 01277758.7 the described large centrifugal fan of file, and side plate and intake grill are made of one the formula moulding, and rotating speed can be bigger, but the wheel diameter of leaf can not surpass 1250mm, and exhaust outlet is less than intake grill, and draught capacity is still limited.The design discharge of existing large centrifugal fan is generally less than 200,000 m
3/ h, total head is generally less than 1.5 ten thousand pa (20 ℃).
Summary of the invention
Goal of the invention: overcome the lower shortcoming of blower ventilation traffic ability in the past, a kind of have big impeller, high-revolving large centrifugal fan are provided.
Technological scheme: the present invention realizes by following proposal:
Adopting diameter is the impeller of the impeller of 2-4m as this machine, and the material of impeller adopts the WELDOX700E steel, and the wheel disc core is thicker than periphery, is welded with small leaf between blade, and the wheel disc back side is welded with pays blade.Main shaft adopts Hard Alloy Steel to forge, and processes the coupling mounting hole site that is connected with motor on the main shaft after quenching with Subsequent tempering.Bearing contains spring bearing and thrust bearing.Have only an inlet box, inlet box is blown to impeller by the taper wind collecting unit, and wheel cap and taper wind collecting unit joint are welded with bracing ring.
Among the present invention, the material that the core wire material of welding impeller preferably is complementary with impeller material.
Main shaft can adopt the articulation hole bolt to be connected with impeller; After main shaft, bearing, these rotatable parts assemblings of impeller, carry out dynamic balance calibration, balance quality reaches the G4 level.
Bearing is the rolling bearing that adopts forged steel and Babbitt to make, and thrust bearing wherein has the master, pays thrust face, and bearing is contained in the bearing housing of cast iron materials, and bearing housing is fixed on the base of centrifugal blower; Sealing is the double seal that packing seal, inflated with nitrogen sealing are arranged.
Among the present invention, casing adopts steel plate to be welded into the volute housing, and housing is divided into two-part up and down from alignment of shafts split surface; Casing outer surface can be provided with " well " shape grid reinforcing rib, can have the working order that peep hole is convenient to observe rotatable parts on the upper shell.Taper wind collecting unit, exhaust outlet can connect inlet box and air outlet box respectively, and the opening of inlet box and air outlet box is all for up.
Beneficial effect: centrifugal blower of the present invention, its main body intensity height, rotatable parts precision height.Impeller diameter is big, can at full speed turn round, and draught capacity is strong, can reach 300,000 m
3/ h; Blast is big, and total head can reach 1.6 ten thousand Pa.Ventilation effect is good, can reduce the energy consumption of per unit volume, is adapted at plateau section, major works and the place big at Dust Capacity, that ventilation volume is big and uses.
Description of drawings
Fig. 1 is generalized section of the present invention;
Fig. 2 is left view of the present invention;
Fig. 3 is a generalized section of impeller of the present invention;
Fig. 4 is a schematic rear view of impeller of the present invention.
Embodiment
Choose wheel disc 25, wheel cap 19, blade 22, small leaf 23, pair blade 26 that wheel disc core 20 and wheel disc periphery 21 have different-thickness, the diameter of making as shown in Figure 3, Figure 4 is the impeller 7 of 2.88m; Adopt Hard Alloy Steel to forge again, the main shaft 5 after modified processing has coupling mounting hole 9 on the main shaft, and employing articulation hole bolt 10 and diameter are that the impeller 7 of 2.88m is connected; Spring bearing 1 and the thrust bearing 3 of selecting for use forged steel and Babbitt to make, thrust bearing is contained in them in the bearing housing 2 of cast iron making; Select for use packing seal to add and fill N
2The double seal 4 of Sealing.
Adopt steel plate to be welded into the casing of volute housing, housing is divided into upper casing 11 and lower housing 8 two-part from alignment of shafts split surface 15, upper casing 11 leaves peep hole 14, welding well type stiffening rib 17 on the casing, inlet box 13 connects together with taper wind collecting unit 6, connects with casing with bolt, and taper wind collecting unit 6 is connected with wheel cap 19, and, connect drain pipe 16 with bracing ring 12 welding reinforcements.
More than the connection that can cooperatively interact of the specification of all component.With each component according to Fig. 1, position shown in Figure 2 relation welding or be assembled together.
Claims (9)
1. centrifugal blower, comprise impeller, main shaft (5), bearing, Sealing (4), casing, inlet box (13), exhaust outlet (18), impeller (7) contains blade (22), wheel disc (25), wheel cap (19), it is characterized in that: adopting diameter is the impeller of the impeller (7) of 2-4m as this machine, the material of impeller (7) adopts the WELDOX700E steel, wheel disc core (20) is thicker than wheel disc periphery (21), be welded with small leaf (23) between blade (22), the wheel disc back side is welded with pays blade (26); Main shaft (5) adopts Hard Alloy Steel to forge, and processes after quenching with Subsequent tempering, has the coupling mounting hole (9) that is connected with motor on the main shaft (5); Bearing contains spring bearing (1) and thrust bearing (3); Have only an inlet box (13) to blow to impeller (7) by taper wind collecting unit (6), wheel cap (19) is welded with bracing ring (12) with taper wind collecting unit (6) joint.
2. a kind of centrifugal blower according to claim 1 is characterized in that: the core wire material and the impeller material of welding impeller are complementary.
3. a kind of centrifugal blower according to claim 1 is characterized in that: main shaft (5) adopts articulation hole bolt (10) to be connected with impeller (7);
4. a kind of centrifugal blower according to claim 1 is characterized in that: after main shaft (5), bearing, these rotatable parts assemblings of impeller (7), carry out dynamic balance calibration, balance quality reaches the G4 level.
5. a kind of centrifugal blower according to claim 1, it is characterized in that: bearing is the rolling bearing that adopts forged steel and Babbitt to make, thrust bearing (3) has the master, pays thrust face, and bearing is contained in the bearing housing (2) of cast iron materials, and bearing housing (2) is fixed on the base.
6. a kind of centrifugal blower according to claim 1 is characterized in that: Sealing (4) is the double seal that packing seal, inflated with nitrogen sealing are arranged.
7. a kind of centrifugal blower according to claim 1 is characterized in that: casing adopts steel plate to be welded into the volute housing, and housing is divided into two-part up and down from alignment of shafts split surface; Casing outer surface is provided with " well " shape grid reinforcing rib, and upper shell has peep hole on (11).
8. a kind of centrifugal blower according to claim 1 is characterized in that: the contraction place of taper wind collecting unit (6), exhaust outlet (18) is used forged steel bracing ring (12) welding respectively.
9. according to claim 1 or 6 described a kind of centrifugal blowers, it is characterized in that: the opening of inlet box (13) and air outlet box (18) all up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131375 CN101922469A (en) | 2010-03-24 | 2010-03-24 | Centrifuged fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131375 CN101922469A (en) | 2010-03-24 | 2010-03-24 | Centrifuged fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101922469A true CN101922469A (en) | 2010-12-22 |
Family
ID=43337597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010131375 Pending CN101922469A (en) | 2010-03-24 | 2010-03-24 | Centrifuged fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN101922469A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015092A (en) * | 2016-07-13 | 2016-10-12 | 重庆沃亚机械有限公司 | High-efficiency energy-saving fan |
| CN108612669A (en) * | 2016-12-09 | 2018-10-02 | 镇江立中机械设备有限公司 | The anti-dust leakage device of centrifugal fan |
| CN117249096A (en) * | 2023-11-13 | 2023-12-19 | 佛山市南海九洲普惠风机有限公司 | Prevent piling up wooden piece material and carry fan |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069501U (en) * | 1990-04-29 | 1991-01-16 | 重庆钢都机修厂 | Vane wheel for big centrifugal blower |
| JPH04209998A (en) * | 1990-12-12 | 1992-07-31 | Nippon Kikai Gijutsu Kk | Centrifugal blower |
| CN1279359A (en) * | 2000-04-13 | 2001-01-10 | 丁震华 | Boosting centrifugal blower for delivering hot gas and its sealing method |
| CN2418281Y (en) * | 2000-04-13 | 2001-02-07 | 丁震华 | Boosted centrifugal air-blower for transfering hot coal-gas |
| CN2523993Y (en) * | 2001-10-01 | 2002-12-04 | 黄石市建材节能设备总厂 | A-style fan without axial force |
| CN1483941A (en) * | 2002-09-20 | 2004-03-24 | 中冶赛迪工程技术股份有限公司 | Air blower |
| CN101324242A (en) * | 2008-07-21 | 2008-12-17 | 江苏兆胜空调有限公司 | High-pressure centrifugal blower |
| CN101520053A (en) * | 2008-02-28 | 2009-09-02 | 南通鑫海通风设备制造有限公司 | High pressure centrifugal fan |
| CN201779058U (en) * | 2010-03-25 | 2011-03-30 | 南通大通宝富风机有限公司 | Centrifugal fan |
-
2010
- 2010-03-24 CN CN 201010131375 patent/CN101922469A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069501U (en) * | 1990-04-29 | 1991-01-16 | 重庆钢都机修厂 | Vane wheel for big centrifugal blower |
| JPH04209998A (en) * | 1990-12-12 | 1992-07-31 | Nippon Kikai Gijutsu Kk | Centrifugal blower |
| CN1279359A (en) * | 2000-04-13 | 2001-01-10 | 丁震华 | Boosting centrifugal blower for delivering hot gas and its sealing method |
| CN2418281Y (en) * | 2000-04-13 | 2001-02-07 | 丁震华 | Boosted centrifugal air-blower for transfering hot coal-gas |
| CN2523993Y (en) * | 2001-10-01 | 2002-12-04 | 黄石市建材节能设备总厂 | A-style fan without axial force |
| CN1483941A (en) * | 2002-09-20 | 2004-03-24 | 中冶赛迪工程技术股份有限公司 | Air blower |
| CN101520053A (en) * | 2008-02-28 | 2009-09-02 | 南通鑫海通风设备制造有限公司 | High pressure centrifugal fan |
| CN101324242A (en) * | 2008-07-21 | 2008-12-17 | 江苏兆胜空调有限公司 | High-pressure centrifugal blower |
| CN201779058U (en) * | 2010-03-25 | 2011-03-30 | 南通大通宝富风机有限公司 | Centrifugal fan |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015092A (en) * | 2016-07-13 | 2016-10-12 | 重庆沃亚机械有限公司 | High-efficiency energy-saving fan |
| CN108612669A (en) * | 2016-12-09 | 2018-10-02 | 镇江立中机械设备有限公司 | The anti-dust leakage device of centrifugal fan |
| CN117249096A (en) * | 2023-11-13 | 2023-12-19 | 佛山市南海九洲普惠风机有限公司 | Prevent piling up wooden piece material and carry fan |
| CN117249096B (en) * | 2023-11-13 | 2024-01-09 | 佛山市南海九洲普惠风机有限公司 | Prevent piling up wooden piece material and carry fan |
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Open date: 20101222 |