CN100395035C - Centrifugal dust separator - Google Patents
Centrifugal dust separator Download PDFInfo
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- CN100395035C CN100395035C CNB2006100256649A CN200610025664A CN100395035C CN 100395035 C CN100395035 C CN 100395035C CN B2006100256649 A CNB2006100256649 A CN B2006100256649A CN 200610025664 A CN200610025664 A CN 200610025664A CN 100395035 C CN100395035 C CN 100395035C
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Abstract
The present invention relates to a centrifugal dust separator which is composed of an inner concentric circular barrel body, an outer concentric circular barrel body and a tapered dust hopper connected to the bottom of the outer barrel body, wherein a centrifugal pressurizing fan is arranged on the upper part of the inner barrel body, a current collector in an arc shape is arranged on an air inlet of a fan impeller, and a streamline fluid director is arranged on a blast inlet at bottom of the inner barrel body. Annular guide vanes are arranged on a turning of an air intake of the inner barrel body, and flat splitter vanes are arranged at the center positions of the annular guide vanes so as to reduce resistance and save energy. A plurality of exhaust ducts are arranged on a barrel wall of the inner barrel body, and air outlets are arranged on a barrel wall of the outer barrel body. Dusty gas is sucked from the top, is expelled from the circumference of the impeller, and is thrown to an inner wall of the outer barrel body. Clean air flows downwards along an outer wall of the inner barrel body, flows in an inner cavity of the inner barrel body through guide vanes and the fluid director, and flows upwards to the exhaust duct to be expelled. The dust thrown to the inner wall of the outer barrel body is sedimentated to the tapered dust hopper and is discharged through a discharge opening. The present invention has high dust removal effect, and is suitable for things, such as electric locomotives, ships, etc., which require compact sizes.
Description
Technical field
The present invention relates to a kind of centrifugal dust separator, be used to reduce the pollution of dust, keep clean environment air.Belong to the fluid engineering technical field.
Background technology
Be the create environment cleaning, purify air, reduce the pollution of dust, ensure the healthy of people, need a kind of device that can separate airborne particle dust air.Characteristics to this dust separator requires to have compact dimensions, crushing is little, efficiency of dust collection is high are applicable to occasions such as city rail traffic locomotive, naval vessel, Precision Machining workshop, can satisfy the demand of clean environment.For the bigger area of dust storm, for the more serious place of industrial pollution, adopt dust separator to carry out high-effective dust-removing, purify air, especially seem very important.
Conventional at present cyclone dust collectors need install a high pressure positive blower air blast in its front additional, and floor space is many, power consumption is big, can't satisfy the needs of many occasions.
Operate in the star electric locomotive in the JD117 type Central Plains in the bigger section area, Zhengzhou, Beijing-Guangzhou Railway north of dust storm, its traction electric machine cooling system adopts the centrifugal blower fan blade wheel that is installed in the motor case, slave sucks air outward, flow through air vent on rotor and the stator, thereby make rotor and stator obtain cooling, high temperature air two side openings from about the back end cover for motor are discharged.Because locomotive uses in bigger section Zhengzhou, the Beijing-Guangzhou Railway north area operation of dust storm, the actual dust content in this area is more, and dust size is little, and particle diameter＜10 μ m account for more than 95% of total Dust Capacity.As adopting inertial dust separator, clean-up effect is poor; As adopting sack cleaner, windage is big, can cause air quantity obviously to reduce, thereby can not guarantee the motor cooling; As adopt conventional whizzer, because volume is big, can't on train locomotive, installs, and more centrifugal blower can't be installed before separator.For electric locomotive in the dust storm larger area, especially need a kind of compact dimensions, special-purpose dust separator that separative efficiency is high, satisfy it from the purifying problem that cools off the ventilating system dust laden air.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, design provides a kind of centrifugal dust separator, has compact dimensions, characteristics that efficiency of dust collection is high, can satisfy the demand that various occasions purify air.
For realizing this purpose, in the centrifugal dust separator of the present invention's design the droop loss that the additional mechanical supercharging blower fan compensates separator is housed, guarantee the air quantity of cooling system, and make dust obtain enough centrifugal force.Centrifugal dust separator is arranged on front, traction electric machine inlet scoop, constitute by inside and outside two concentric circular cylinder bodies and the taper dust hopper that is connected the outer cylinder body bottom, centrifugal booster fan is installed on the top of inner barrel, the air inlet of booster fan impeller is provided with the arc current collector, the bottom air inlet mouth place of inner barrel is provided with streamlined air deflector, at inner barrel inlet gas turning annular guide vane is housed, be positioned at annular guide vane centre, a straight splitter is fixed on outer cylinder body inwall bottom, several exhaust ducts are installed on the barrel of inner barrel, the center line of exhaust duct is horizontal, its air inlet is arc or 1/4 ellipticity, and its exhaust outlet is on the barrel of outer cylinder body.
After the centrifugal booster fan wheel rotation on separator top, dusty gas is inhaled into from the top and discharges around impeller, and atmospheric density is big because dust density compares, and dust will be thrown to the inwall of outer cylinder body.Dustiness between the inner/outer tube in the gas is along with obviously reducing from the minimizing of center of circle radius.Pure air outer wall along inner barrel around inner core flows downward, and flows into the inner chamber of inner barrel and upwards mobile from the bottom of inner barrel through guide vane and air deflector, enters exhaust duct, discharges through outlet, flows into motor cooling air suction inlet then.The dust of being thrown to the outer cylinder body inwall then is deposited to above the end cap flange of discharge gate bottom in the taper dust hopper, can regularly discharge dust.
Centrifugal booster fan among the present invention can adopt external rotor electric machine or inner rotor motor to drive, and implements separation to the different-grain diameter dust by regulating the centrifugal impeller rotating speed.The present invention reduces resistance and decreases and start with from improving flow channel shape, in inner tube wall bottom inlet section air deflector and annular guide vane is set, and in annular guide vane central authorities splitter is set, and can reduce flow resistance effectively.The bottom, cross section of described air deflector is semicircle, and protrude at the middle part, and top is diffusion type.The cross section of described annular guide vane is semicircle, and both sides are linearity.
Centrifugal dust separator of the present invention is applicable to the traction electric machine open cooling system, be arranged on front, traction electric machine inlet scoop, the booster fan that is provided with can make dust obtain enough centrifugal force, can compensate the droop loss of separator simultaneously, guarantees the air quantity of cooling system.The present invention has compact dimensions, floor space is little, separative efficiency is high characteristics, and efficiency of dust collection reaches more than 90%, is not only applicable to electric locomotive, also can be used for the naval vessel equidimension and requires compact place.The present invention can satisfy 60～1,000,000 kilometers of power vehicle operations, and motor does not need to carry out the amboceptor cleaning.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among Fig. 1,1 is outer cylinder body, and 2 is inner barrel, and 3 is centrifugal booster fan impeller, and 4 is centrifugal booster fan, and 5 is outlet, and 6 is air deflector, and 7 is annular guide vane, and 8 is current collector, and 9 are the taper dust hopper, and 10 is discharge gate, and 11 is splitter, and 12 is the end cap flange.
Fig. 2 is the bottom air inlet mouth place structural representation of inner barrel 2 among the present invention.
Among Fig. 2,2 is inner barrel, and 6 is air deflector, and 7 is annular guide vane.
The specific embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is further described.
Centrifugal dust separator structure provided by the invention as shown in Figure 1, circular cylinder body by inside and outside two arranged concentric---outer cylinder body 1, inner barrel 2, and the taper dust hopper 9 that is connected outer cylinder body 1 bottom constitutes, centrifugal booster fan 4 is installed on the top of inner barrel 2, and the air inlet of booster fan impeller 3 is provided with arc current collector 8.The bottom air inlet mouth place of inner barrel 2 is provided with streamlined air deflector 6, at inner barrel 2 inlet gas turnings annular guide vane 7 is housed.Be positioned at annular guide vane 7 centre, a straight splitter 11 is fixed on the inwall bottom of outer cylinder body 1.Several exhaust ducts 5 are installed on the barrel of inner barrel 2, and the center line of exhaust duct 5 is horizontal, and the air inlet of exhaust duct 5 is arc or 1/4 ellipticity, and in order to reducing flow resistance, the exhaust outlet of exhaust duct 5 is on the barrel of outer cylinder body 1.
Among the present invention the bottom air inlet mouth place structure of inner barrel 2 as shown in Figure 2, the bottom air inlet mouth place of inner barrel 2 is provided with streamlined air deflector 6, the bottom, cross section of air deflector 6 is semicircle, protrude at the middle part, top is diffusion type.At inner barrel 2 inlet gas turnings annular guide vane 7 is housed, the cross section of annular guide vane 7 is semicircle, and both sides are linearity.
Among the present invention, centrifugal booster fan 4 is installed in the top of separator, and after centrifugal booster fan impeller 3 rotated, dusty gas was inhaled into from the top and discharges around impeller 3, atmospheric density is big because dust density compares, and dust will be thrown to the inwall of outer cylinder body 1.Dustiness between the inner/outer tube in the gas is along with obviously reducing from the minimizing of center of circle radius.Pure air outer wall along inner barrel 2 around inner core flows downward, and flows into the inner chamber of inner barrel 2 and upwards mobile from the bottom of inner barrel 2 through guide vane 7 and air deflector 6, enters exhaust duct 5, discharges through outlet, flows into motor cooling air suction inlet then; The dust of being thrown to outer cylinder body 1 inwall then is deposited to above the end cap flange 12 of discharge gate 10 bottoms in the taper dust hopper 9, can regularly discharge dust.
Energy-conservation in order to realize, can regulate the rotating speed of centrifugal booster fan impeller 3, to satisfy the requirement of different dust sizes, density and required cleanliness factor, can adopt high rotational speed to nominal particle size.The present invention reduces resistance and decreases and start with from improving flow channel shape, in inner tube wall bottom inlet section air deflector 6 and guide vane 7 is set, and in annular guide vane 7 central authorities splitter 11 is set, and can reduce flow resistance effectively.
Claims (3)
1. centrifugal dust separator, it is characterized in that constituting by inside and outside two concentric circular cylinder bodies and the taper dust hopper (9) that is connected outer cylinder body (1) bottom, centrifugal booster fan (4) is installed on the top of inner barrel (2), the air inlet of booster fan impeller (3) is provided with arc current collector (8), the bottom air inlet mouth place of inner barrel (2) is provided with streamlined air deflector (6), at inner barrel (2) inlet gas turning annular guide vane (7) is housed, be positioned at annular guide vane (7) centre, a straight splitter (11) is fixed on outer cylinder body (1) inwall bottom; Several exhaust ducts (5) are installed on the barrel of inner barrel (2), and the center line of exhaust duct (5) is horizontal, and its air inlet is arc or 1/4 ellipticity, and its exhaust outlet is on the barrel of outer cylinder body (1).
2. according to the centrifugal dust separator of claim 1, the bottom, cross section that it is characterized in that described air deflector (6) is for semicircle, and protrude at the middle part, and top is diffusion type.
3. according to the centrifugal dust separator of claim 1, the cross section that it is characterized in that described annular guide vane (7) is for semicircle, and both sides are linearity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100256649A CN100395035C (en) | 2006-04-13 | 2006-04-13 | Centrifugal dust separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100256649A CN100395035C (en) | 2006-04-13 | 2006-04-13 | Centrifugal dust separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1833776A CN1833776A (en) | 2006-09-20 |
| CN100395035C true CN100395035C (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100256649A Expired - Fee Related CN100395035C (en) | 2006-04-13 | 2006-04-13 | Centrifugal dust separator |
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| Country | Link |
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| CN (1) | CN100395035C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2531566B (en) * | 2014-10-22 | 2017-04-26 | Dyson Technology Ltd | Apparatus for separating particles from a fluid |
| GB2531564B (en) * | 2014-10-22 | 2017-02-01 | Dyson Technology Ltd | Apparatus for separating particles from an airflow |
| CN105879499A (en) * | 2014-11-17 | 2016-08-24 | 朱永彪 | Centrifugal smoke purifier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078385U (en) * | 1990-09-10 | 1991-06-05 | 上海交通大学 | Roof ventilator |
| US5156500A (en) * | 1989-10-12 | 1992-10-20 | Skyway Development Limited | Appliance for the decantation and recovery of powdery products in pneumatic conveyors |
| CN2123633U (en) * | 1991-07-22 | 1992-12-02 | 煤炭科学研究总院重庆分院 | Axial-flow ventilator for mine |
| CN2317434Y (en) * | 1997-12-31 | 1999-05-05 | 浙江上风实业股份有限公司 | Booster, ventilating and air exhausting special-purpose fan |
| CN2482601Y (en) * | 2001-05-18 | 2002-03-20 | 北京新安特玻璃钢设备有限公司 | Pipe type fire-fighting smoke discharging fan |
| CN1569343A (en) * | 2003-04-10 | 2005-01-26 | 上海交通大学 | Impeller cyclone dust collector |
-
2006
- 2006-04-13 CN CNB2006100256649A patent/CN100395035C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5156500A (en) * | 1989-10-12 | 1992-10-20 | Skyway Development Limited | Appliance for the decantation and recovery of powdery products in pneumatic conveyors |
| CN2078385U (en) * | 1990-09-10 | 1991-06-05 | 上海交通大学 | Roof ventilator |
| CN2123633U (en) * | 1991-07-22 | 1992-12-02 | 煤炭科学研究总院重庆分院 | Axial-flow ventilator for mine |
| CN2317434Y (en) * | 1997-12-31 | 1999-05-05 | 浙江上风实业股份有限公司 | Booster, ventilating and air exhausting special-purpose fan |
| CN2482601Y (en) * | 2001-05-18 | 2002-03-20 | 北京新安特玻璃钢设备有限公司 | Pipe type fire-fighting smoke discharging fan |
| CN1569343A (en) * | 2003-04-10 | 2005-01-26 | 上海交通大学 | Impeller cyclone dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1833776A (en) | 2006-09-20 |
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Granted publication date: 20080618 Termination date: 20130413 |