CN101922473A - Fan for circulating fluidized bed - Google Patents
Fan for circulating fluidized bed Download PDFInfo
- Publication number
- CN101922473A CN101922473A CN 201010131392 CN201010131392A CN101922473A CN 101922473 A CN101922473 A CN 101922473A CN 201010131392 CN201010131392 CN 201010131392 CN 201010131392 A CN201010131392 A CN 201010131392A CN 101922473 A CN101922473 A CN 101922473A
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- CN
- China
- Prior art keywords
- fan
- adjustment doors
- fluidized bed
- circulating fluidized
- intake grill
- 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.)
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Abstract
The invention provides a fan for a circulating fluidized bed, which has a sectional type structure. An air inlet box and an air inlet are provided with a flange respectively; a damper of the fan is arranged at the end of the air inlet box and the air inlet; the damper is conical, the bottom of the cone is towards the air inlet, and an adjusting handle of the damper is arranged outside an air cylinder; a guide plate is arranged between the damper and the air inlet; and an air outlet is externally connected with a diffuser. The fan has the advantages of a small number of eddies in the fan, a small amount of vibration, low flow losses, flexible air inlet adjustment and capability of improving fan efficiency by 2 to 3 percent.
Description
Technical field
The present invention relates to blower fan, especially a kind of blower fan that can reduce vortex vibration, improve drafting efficiency.
Background technique
Blower fan is used to dust removal by ventilation in large quantities in places such as factory mining areas.Blower fan is made up of parts such as motor, casing, inlet box, impeller, main shaft, bearing, inlet box, intake grills usually, the adjustment doors in addition that has, and adjustment doors contains regulating handle, air duct, pulley, linkage rod, adjustment doors blade etc.
Traditional blower fan exists that eddy current is big, vibration is big, noise is big, and fan operation efficient is not good enough, starts shortcomings such as difficulty.The method of simple solution is that this is passive protection at the peripheral puigging that covers of fan casing, to the not effect of vibration damping of blower fan inside.Number of patent application is to disclose a kind of method that lowers fan platform vibration and noise in 200710171398.5 the specification, also can not lower vibration and noise source that blower fan itself causes.Number of patent application is that disclosed a kind of blower fan adopts cascade snail tongue noise reduction spiral case in 00115736.1 the specification, has increased the resistance of wind flow, and energy consumption is higher; Number of patent application is to disclose a kind of elasticity noise reduction sound axle sleeve that adopted in 200810086135.9 the specification, has increased the matching gap of axle with axle sleeve, increases the rotational resistance of axle, increases and loads.
Summary of the invention
Goal of the invention: a kind of attenuating casing vortex vibration is provided, reduces fan noise, improve the blower fan of drafting efficiency.
Technological scheme: the present invention is achieved in that
Casing is a segmentation structure, has flange respectively at the end of intake grill place, inlet box, when being convenient to the blower fan dismounting, eliminates the not enough and vibration that produces of casing and suction chamber rigidity.Between inlet box and intake grill, install adjustment doors, guide plate successively additional; Adjustment doors be shaped as taper shape, the transfer handle of adjustment doors is placed on outside the air duct of adjustment doors; The front end of guide plate links to each other with the outlet air surface of adjustment doors, and the rear end of guide plate links to each other with intake grill.
That the adjustment doors that is installed in this position takes up room is little, windage is little, safety, and the adjustment doors of this shape and structure can prevent the eddy current induced vibration, and reducing noise reduces flow losses, improves the efficient of blower fan.
Among the present invention, be welded with flange on the adjustment doors, be connected with intake grill with inlet box respectively by bolt.
The adjusting of adjustment doors is driven by linkage rod by pneumatic actuator or electric actuator and regulates, and controlling device can accurately be located, flexible movements.Linkage rod can be that elasticity connects or soft connection.
Exhaust outlet is connected with diffuser pipe outward, and diffuser pipe is a bell mouth shape, and the air-flow that makes exhaust outlet come out is expanded, and the part dynamic pressure is converted into static pressure, and further noise abatement is raised the efficiency.
Other is provided with the slow-speed device that speed reducer drives, and speed reducer is linked to each other with main shaft by coupling, can overcome the startup difficulty that the blower fan rotary inertia causes greatly and shut down the problem of reversing.Be connected to main motor coupler on the main shaft.
Among the present invention, also can have the manhole door of good seal on the casing, be beneficial to the component in the checking machine.
Beneficial effect: blower fan of the present invention, it is accurate flexibly to regulate air quantity, and the casing vibration is little, and the vibration that eddy current causes in the machine is little, and the keying resistance is little.Simultaneously, the flow losses in the intake process reduce, and can improve fan efficiency 2%-3%, energy-saving and emission-reduction.
Description of drawings
Fig. 1 is a adjustment doors among the present invention and a generalized section of guide plate;
Fig. 2 is a general assembly schematic representation of the present invention.
Embodiment
Choose earlier or with the corresponding material adjustment doors 15 that has upper bracket 1, supporting bearing 2, undersetting 3, transfer handle 8, rotatingshaft 5, air duct 4, linkage rod 6, pulley 7, adjustment doors blade 10 as shown in Figure 1, front end flange 9 is made guide plate 16.
Then choose or make as shown in Figure 2 the casing 11 that has intake grill 17, manhole door 26, inlet box 12, bearing 13, flange 18, impeller 20, main shaft 21 with corresponding material and technology; Select the reducing motor 14 of appropriate size again for use, pneumatic actuator 22, main motor coupler 23.
At last, each parts are pressed Fig. 2, position shown in Figure 3 and assembled in sequence on concrete pedestal, supporting foot 19 fixing getting final product.
Claims (7)
1. fan for circulating fluidized bed, comprise casing (11), adjustment doors (15), impeller (20), main shaft (21), bearing (13), inlet box (12), intake grill (17), exhaust outlet (24), adjustment doors (15) contains regulating handle (8), air duct (4), pulley (7), linkage rod (6), adjustment doors blade 10, it is characterized in that: casing (11) is a segmentation structure, locates at intake grill (17), the end of inlet box (12) has flange (18) respectively; Between inlet box (12) and intake grill (17), install adjustment doors (15), guide plate (16) successively additional; Adjustment doors (15) be shaped as taper shape, the transfer handle (8) of adjustment doors is placed on outside the air duct (4) of adjustment doors (15), the front end of guide plate (16) links to each other with the outlet air surface of adjustment doors (15), the rear end of guide plate (16) links to each other with intake grill (17).
2. fan for circulating fluidized bed according to claim 1 is characterized in that: described adjustment doors (15), on be welded with flange (18), be connected with intake grill (17) with inlet box (12) respectively by bolt.
3. fan for circulating fluidized bed according to claim 1 is characterized in that: the adjusting of described adjustment doors (15) is driven by linkage rod by pneumatic actuator (22) or electric actuator and regulates.
4. according to claim 1 or 3 described fan for circulating fluidized bed, it is characterized in that: described linkage rod (6) is that elasticity connects or soft connection.
5. fan for circulating fluidized bed according to claim 1 is characterized in that: exhaust outlet is connected with diffuser pipe (25) outward, and diffuser pipe (25) is a bell mouth shape.
6. fan for circulating fluidized bed according to claim 1 is characterized in that: be provided with the slow-speed device that speed reducer (14) drives, speed reducer is linked to each other with main shaft (21) by coupling.
7. fan for circulating fluidized bed according to claim 1 is characterized in that: the manhole door (26) that has sealing on the casing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131392 CN101922473A (en) | 2010-03-24 | 2010-03-24 | Fan for circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010131392 CN101922473A (en) | 2010-03-24 | 2010-03-24 | Fan for circulating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101922473A true CN101922473A (en) | 2010-12-22 |
Family
ID=43337600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010131392 Pending CN101922473A (en) | 2010-03-24 | 2010-03-24 | Fan for circulating fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101922473A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321921A (en) * | 2012-03-22 | 2013-09-25 | 南通大通宝富风机有限公司 | High-speed wire controlled cooling fan |
| WO2019037592A1 (en) * | 2017-08-22 | 2019-02-28 | 重庆通用工业(集团)有限责任公司 | Draught fan and air conveying equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB507209A (en) * | 1937-12-08 | 1939-06-08 | Cabot Seaton Bull | Improvements in or relating to the construction of electron discharge devices |
| EP0589745A1 (en) * | 1992-09-25 | 1994-03-30 | TURBOMECA, Société dite: | Inlet control system of a turbomachine |
| CN2690636Y (en) * | 2004-04-14 | 2005-04-06 | 天津市通风机厂 | Hollow main shaft double suction F type centirfugal fan |
| CN2799921Y (en) * | 2005-06-14 | 2006-07-26 | 南通金通灵风机有限公司 | Circulating fluidized bed fan for power station generator unit |
| CN101216048A (en) * | 2007-12-28 | 2008-07-09 | 江苏金通灵风机有限公司 | Generating plant units 600MW circulating fluid bed primary air fan |
| CN201314304Y (en) * | 2008-11-13 | 2009-09-23 | 赵惠东 | Novel blower governing valve |
| CN201779072U (en) * | 2010-03-24 | 2011-03-30 | 南通大通宝富风机有限公司 | Blower of circulating fluid bed |
-
2010
- 2010-03-24 CN CN 201010131392 patent/CN101922473A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB507209A (en) * | 1937-12-08 | 1939-06-08 | Cabot Seaton Bull | Improvements in or relating to the construction of electron discharge devices |
| EP0589745A1 (en) * | 1992-09-25 | 1994-03-30 | TURBOMECA, Société dite: | Inlet control system of a turbomachine |
| CN2690636Y (en) * | 2004-04-14 | 2005-04-06 | 天津市通风机厂 | Hollow main shaft double suction F type centirfugal fan |
| CN2799921Y (en) * | 2005-06-14 | 2006-07-26 | 南通金通灵风机有限公司 | Circulating fluidized bed fan for power station generator unit |
| CN101216048A (en) * | 2007-12-28 | 2008-07-09 | 江苏金通灵风机有限公司 | Generating plant units 600MW circulating fluid bed primary air fan |
| CN201314304Y (en) * | 2008-11-13 | 2009-09-23 | 赵惠东 | Novel blower governing valve |
| CN201779072U (en) * | 2010-03-24 | 2011-03-30 | 南通大通宝富风机有限公司 | Blower of circulating fluid bed |
Non-Patent Citations (2)
| Title |
|---|
| 《风机技术》 20030531 马优良 花瓣式调节门结构的改进 25-26 1-7 , 第5期 2 * |
| 《风机技术》 20090131 张琦等 通风机圆形调节门的结构 39-40 1-7 , 第1期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321921A (en) * | 2012-03-22 | 2013-09-25 | 南通大通宝富风机有限公司 | High-speed wire controlled cooling fan |
| WO2019037592A1 (en) * | 2017-08-22 | 2019-02-28 | 重庆通用工业(集团)有限责任公司 | Draught fan and air conveying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101222 |