CN103148019A - Double intake high-pressure large flow rate cement kiln centrifugal fan - Google Patents
Double intake high-pressure large flow rate cement kiln centrifugal fan Download PDFInfo
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- CN103148019A CN103148019A CN2013100713288A CN201310071328A CN103148019A CN 103148019 A CN103148019 A CN 103148019A CN 2013100713288 A CN2013100713288 A CN 2013100713288A CN 201310071328 A CN201310071328 A CN 201310071328A CN 103148019 A CN103148019 A CN 103148019A
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- impeller
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Abstract
The invention discloses a centrifugal fan, particularly discloses a double intake high-pressure large flow rate cement kiln centrifugal fan, which comprises a centrifugal fan casing and a blade group in the centrifugal fan casing, the blade group is positioned in the centrifugal fan casing via a main shaft in a rotating manner; two air intake groups are connected to the centrifugal fan casing in a back-to-back manner; the two air intake groups take the same central axis with the main shaft, and are communicated with the interior of the centrifugal fan casing; the blade group is formed by a blade disc fixedly arranged on the main shaft and two groups of blades respectively fixed on the two side surfaces of the blade disc, the centers of the two groups of blades correspond to the two air inlet groups, reinforcing rings are arranged at the two front disc inlets of the blade groups, pressure expansion guide rings are respectively arranged on the two inner walls of the centrifugal fan in positions close to the blade air outlet end part, and the pressure expansion guide rings do not collide with the impeller. The centrifugal fan is flat in performance curve, large in flow capacity regulation range and high in efficiency.
Description
Technical field
The present invention relates to a kind of centrifugal blower, be specifically related to a kind of pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower.
Background technique
In present cement in vertical kiln ventilation field, the air quantity of the general centrifugal blower that adopts is substantially at 30000m
3/ h, flow adjustment range is little, efficient is low, and average efficiency is only in 75% left and right, and the main medium of carrying is non-corrosiveness, not spontaneous combustion, do not contain the gas of stickum, and medium temperature generally is no more than 80 ℃, and dust loading is not more than 150mg/m
3, also can be used for all kinds of ventilations such as petrochemical industry, building materials, metallurgy, electric power and mass transport.Yet along with the increasing of cement industry production line output, need to be namely the requirement that high pressure, the larger blower fan of while air quantity satisfy the shaft kiln production line.
Present ventilator more and more can not satisfy present situation, therefore, is necessary again to relate to a kind of more high pressure, the air quantity regulation range is larger, efficient is higher ventilator adapts to existing production requirement.
Summary of the invention
For above-mentioned deficiency of the prior art, the present invention aims to provide a kind of pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, and performance curve is smooth, flow adjustment range is large, efficient is high.
To achieve these goals, technological scheme of the present invention: a kind of pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, comprise centrifuge shell and interior impeller sets thereof, described impeller sets is passed through the main shaft rotating position in described centrifuge shell, be connected with two relative intake grill groups dorsad on described centrifuge shell, this two intake grills group and the concentricity axle of described main shaft, and be connected with this centrifuge shell inside; Described impeller sets is to be fixedly arranged on the impeller that the impeller plate on main shaft and two groups are fixed in respectively on this impeller plate bi-side to form, the center of these two groups of impellers is corresponding with described two intake grill groups respectively, two shroud inlets in impeller sets are provided with stiffening ring, on described centrifuge shell two madial walls, the diffusion lead ring is set respectively, this diffusion lead ring is positioned at the centrifuge shell sidewall near near impeller outlet air end end, and diffusion lead ring and impeller absence of collision.
Further, described two intake grill groups are connected with respectively inlet box and communicate with it, are provided with the air quantity adjustment doors on the intake grill of two inlet boxs, this two air quantity adjustment doors all with same electric actuator control connection.
Be 45° angle on the intake grill of described two inlet boxs and level are oblique; The exhaust outlet of described centrifuge shell is relative with the outlet air end of impeller, and itself and level are 135 ° on tiltedly.
Described main shaft runs through the inlet box of centrifuge shell both sides, and main shaft two ends adopt the supporting bearing base supporting and location, connects motor at an end of main shaft by coupling.
Described centrifuge shell, inlet box, supporting bearing base all adopt supporting frame to be fixed on a steel base.
Described inlet box adopts respectively the supporting frame of tilted supporter and straight bracket to be fixed on described steel base.
Described stiffening ring is the cast steel stiffening ring, and it is welded in the shroud inlet of impeller sets.
Beneficial effect of the present invention: by realize the large flow air quantity of this centrifugal blower at the impeller of centrifuge shell both sides air inlet and coupling correspondence; The centrifuge shell madial wall arrange the diffusion lead ring replace on traditional centrifugal blower without the blade to enlarge pressure limit, reduced on the one hand the external diameter of the impeller plate, reduced its running peripheral speed, the also corresponding tangential stress that reduces the impeller plate, not only increased the equipment traveling comfort, also can correspondingly suitably reduce its material thickness, saved material, reduced cost, on the other hand, thickness and the external diameter of the impeller plate reduce, and make whole impeller weight alleviate, and then the stressed of main shaft reduce, and also fully guaranteed the intensity of rotor set and the stationarity of overall operation; Shroud inlet in impeller sets establishes stiffening ring, has further guaranteed intensity and the traveling comfort of whole rotor set; And the spring bearing seat supports is all adopted at main shaft two ends, is also in order to guarantee the steady running of whole blower fan.
Through evidence, this centrifugal blower air quantity scope can reach 38000～81000m
3/ h, total head 30000～32000Pa(mark attitude), efficient can reach 80%～85%, performance curve is smooth, flow adjustment range is large, efficient and efficient region is broad.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is along the sectional view of A-A line in Fig. 1;
Fig. 3 is the enlarged diagram of P part in Fig. 1;
Fig. 4 be in Fig. 2 A to the end view of air quantity adjustment doors;
Fig. 5 be in Fig. 2 B to the end view of exhaust outlet.
Embodiment
Further describe the present invention below in conjunction with specific embodiment and accompanying drawing.
A kind of two air intake high-pressure high-flow cement in vertical kiln centrifugal blowers as Figure 1-3 comprise centrifuge shell 3 and interior impeller sets 4 thereof, described impeller sets 4 is passed through main shaft 8 rotating position in described centrifuge shell 3, be connected with two relative intake grill groups 5 dorsad on described centrifuge shell 3, this two intake grills group 5 and the concentricity axle of described main shaft 8, and be connected with this centrifuge shell 3 inside; Described impeller sets 4 forms for the impeller that is fixedly arranged on the impeller plate on main shaft 8 and two groups and is fixed in respectively on this impeller plate bi-side, the center of these two groups of impellers is corresponding with described two intake grill groups 5 respectively, two shroud inlets in impeller sets 4 are provided with stiffening ring 7, on 3 liang of madial walls of described centrifuge shell, diffusion lead ring 6 is set respectively, this diffusion lead ring 6 is positioned at centrifuge shell 3 sidewalls near near impeller outlet air end end, and diffusion lead ring 6 and impeller absence of collision.
Described two intake grill groups 5 are connected with respectively inlet box 2 and communicate with it, are provided with air quantity adjustment doors 1 on the intake grill of two inlet boxs 2, this two air quantity adjustment doors 1 all with same electric actuator (not shown) control connection.Adopt same electric actuator to control by two air quantity adjustment doors 1, make the air quantity of this centrifugal blower both sides realize synchronous operation, guaranteed the stability of whole equipment operation.
Be 45° angle on the intake grill of described two inlet boxs 2 and level are oblique; The exhaust outlet 14 of described centrifuge shell 3 is relative with the outlet air end of impeller, and itself and level be 135 ° on tiltedly, as shown in Fig. 2,4,5.
Described main shaft 8 runs through the inlet box 2 of centrifuge shell 3 both sides, and main shaft 8 two ends adopt supporting bearing base 11 supporting and locations, connects motor 10 at an end of main shaft 8 by coupling 9.Connecting position between inlet box 2 and main shaft 8 adopts motive sealing to be connected, makes the air quantity that enters in inlet box 2 enter to through two intake grill groups 5 fully that centrifuge shell 3 is interior realizes that wind speed circulates.At the two ends of main shaft 8, supporting bearing base 11 is set all and positions support, than the one-sided bearing support location of traditional employing, the present invention's running is more steady, safer.
At last, all adopt supporting frame to be fixed on a steel base 12 described centrifuge shell 3, inlet box 2, supporting bearing base 11, concrete example as, described inlet box 2 adopts respectively the supporting frame of tilted supporter 13 and straight bracket to be fixed on described steel base 12, is convenient to site installation test.
Through evidence, this centrifugal blower air quantity scope can reach 38000～81000m3/h, total head 30000～32000Pa(and mark attitude), efficient can reach 80%～85%, performance curve is smooth, flow adjustment range is large, efficiently and efficient region broad.Simultaneously, be 1.5～2 times of price of this centrifugal blower than the roots blower of same model, therefore, the more economical material benefit of the present invention.
The above technological scheme that the embodiment of the present invention is provided is described in detail, used specific case herein principle and the mode of execution of the embodiment of the present invention are set forth, above embodiment's explanation is only applicable to help to understand the principle of the embodiment of the present invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the present invention, all will change on embodiment and application area, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. two air intake high-pressure high-flow cement in vertical kiln centrifugal blower, comprise centrifuge shell (3) and interior impeller sets (4) thereof, described impeller sets (4) is passed through main shaft (8) rotating position in described centrifuge shell (3), it is characterized in that: be connected with two relative intake grill groups (5) dorsad on described centrifuge shell (3), this two intake grills group (5) and the concentricity axle of described main shaft (8), and be connected with this centrifuge shell (3) inside; Described impeller sets (4) forms for the impeller that is fixedly arranged on the impeller plate on main shaft (8) and two groups and is fixed in respectively on this impeller plate bi-side, the center of these two groups of impellers is corresponding with described two intake grill groups (5) respectively, two shroud inlets in impeller sets (4) are provided with stiffening ring (7), on described centrifuge shell (3) two madial walls, diffusion lead ring (6) is set respectively, this diffusion lead ring (6) is positioned at centrifuge shell (3) sidewall near near impeller outlet air end end, and diffusion lead ring (6) and impeller absence of collision.
2. according to claim 1 pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, it is characterized in that: described two intake grill groups (5) are connected with respectively inlet box (2) and communicate with it, be provided with air quantity adjustment doors (1) on the intake grill of two inlet boxs (2), this two air quantity adjustment doors (1) all with same electric actuator control connection.
3. according to claim 2 pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, is characterized in that: be 45° angle on the intake grill of described two inlet boxs (2) and level are oblique; The exhaust outlet (14) of described centrifuge shell (3) is relative with the outlet air end of impeller, and itself and level are 135 ° on tiltedly.
4. according to claim 2 pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, it is characterized in that: described main shaft (8) runs through the inlet box (2) of centrifuge shell (3) both sides, and supporting bearing base (11) supporting and location is adopted at main shaft (8) two ends, connects motor (10) at an end of main shaft (8) by coupling (9).
5. according to claim 4 pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, it is characterized in that: described centrifuge shell (3), inlet box (2), supporting bearing base (11) all adopt supporting frame to be fixed on a steel base (12).
6. according to claim 5 pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, it is characterized in that: described inlet box (2) adopts respectively the supporting frame of tilted supporter (13) and straight bracket to be fixed on described steel base (12).
7. according to claim 1 pair of air intake high-pressure high-flow cement in vertical kiln centrifugal blower, it is characterized in that: described stiffening ring (7) is the cast steel stiffening ring, and it is welded in the shroud inlet of impeller sets (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071328.8A CN103148019B (en) | 2013-03-06 | 2013-03-06 | Two air intake high-pressure high-flow cement in vertical kiln centrifugal fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071328.8A CN103148019B (en) | 2013-03-06 | 2013-03-06 | Two air intake high-pressure high-flow cement in vertical kiln centrifugal fans |
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| CN103148019A true CN103148019A (en) | 2013-06-12 |
| CN103148019B CN103148019B (en) | 2016-05-04 |
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|---|---|---|---|
| CN201310071328.8A Expired - Fee Related CN103148019B (en) | 2013-03-06 | 2013-03-06 | Two air intake high-pressure high-flow cement in vertical kiln centrifugal fans |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675728A (en) * | 2015-03-09 | 2015-06-03 | 黎雅伟 | Low-noise fan |
| CN109555714A (en) * | 2019-01-23 | 2019-04-02 | 上海诺地乐通用设备制造有限公司 | The variable double air intake centrifugal blowers of one kind, realization method and system |
| CN112664470A (en) * | 2020-12-24 | 2021-04-16 | 北京理工大学 | High-speed air compressor convenient to heat dissipation |
| CN112682336A (en) * | 2020-12-28 | 2021-04-20 | 北京理工大学 | Centrifugal air compressor for fuel cell system |
| CN112682338A (en) * | 2020-12-24 | 2021-04-20 | 北京理工大学 | Air compressor for fuel cell system |
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| CN2448959Y (en) * | 1999-09-25 | 2001-09-19 | 吴超斌 | Centrifugal blower fan coaxial high speed rotation with air cooling type screw bolt compressor |
| US20020146318A1 (en) * | 2001-03-30 | 2002-10-10 | Sunonwealth Electric Machine Industry Co., Ltd. | Blower-type fan with dual inlet arrangements |
| CN2690636Y (en) * | 2004-04-14 | 2005-04-06 | 天津市通风机厂 | Hollow main shaft double suction F type centirfugal fan |
| CN1824954A (en) * | 2005-09-07 | 2006-08-30 | 田春利 | Double sucking double-row high pressure fan |
| CN202228423U (en) * | 2011-09-30 | 2012-05-23 | 沈阳透平机械股份有限公司 | Centrifugal air blower of double-suction semi-open type impeller |
| CN203189336U (en) * | 2013-03-06 | 2013-09-11 | 贵州大有风机实业有限公司 | Double-air-inlet high-pressure large-flow cement shaft kiln centrifugal ventilator |
-
2013
- 2013-03-06 CN CN201310071328.8A patent/CN103148019B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448959Y (en) * | 1999-09-25 | 2001-09-19 | 吴超斌 | Centrifugal blower fan coaxial high speed rotation with air cooling type screw bolt compressor |
| US20020146318A1 (en) * | 2001-03-30 | 2002-10-10 | Sunonwealth Electric Machine Industry Co., Ltd. | Blower-type fan with dual inlet arrangements |
| CN2690636Y (en) * | 2004-04-14 | 2005-04-06 | 天津市通风机厂 | Hollow main shaft double suction F type centirfugal fan |
| CN1824954A (en) * | 2005-09-07 | 2006-08-30 | 田春利 | Double sucking double-row high pressure fan |
| CN202228423U (en) * | 2011-09-30 | 2012-05-23 | 沈阳透平机械股份有限公司 | Centrifugal air blower of double-suction semi-open type impeller |
| CN203189336U (en) * | 2013-03-06 | 2013-09-11 | 贵州大有风机实业有限公司 | Double-air-inlet high-pressure large-flow cement shaft kiln centrifugal ventilator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675728A (en) * | 2015-03-09 | 2015-06-03 | 黎雅伟 | Low-noise fan |
| CN109555714A (en) * | 2019-01-23 | 2019-04-02 | 上海诺地乐通用设备制造有限公司 | The variable double air intake centrifugal blowers of one kind, realization method and system |
| CN112664470A (en) * | 2020-12-24 | 2021-04-16 | 北京理工大学 | High-speed air compressor convenient to heat dissipation |
| CN112682338A (en) * | 2020-12-24 | 2021-04-20 | 北京理工大学 | Air compressor for fuel cell system |
| CN112682336A (en) * | 2020-12-28 | 2021-04-20 | 北京理工大学 | Centrifugal air compressor for fuel cell system |
| CN112682336B (en) * | 2020-12-28 | 2022-06-14 | 北京理工大学 | Centrifugal air compressor for fuel cell system |
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| Publication number | Publication date |
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| CN103148019B (en) | 2016-05-04 |
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Effective date of registration: 20160330 Address after: 550008 No. 42 Baihua Avenue, Yunyan District, Guizhou, Guiyang Applicant after: Guiyang Yuanda Fans Manufacturing Co., Ltd Address before: 550009 Guizhou city of Guiyang Province Jin Zhu Zhen River Applicant before: Guizhou Dayou Fan Industrial Co.,Ltd. |
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Granted publication date: 20160504 Termination date: 20170306 |