CN204610326U - A kind of regulable speed type pipeline centrifugal blower - Google Patents
A kind of regulable speed type pipeline centrifugal blower Download PDFInfo
- Publication number
- CN204610326U CN204610326U CN201520280669.0U CN201520280669U CN204610326U CN 204610326 U CN204610326 U CN 204610326U CN 201520280669 U CN201520280669 U CN 201520280669U CN 204610326 U CN204610326 U CN 204610326U
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- cabinet
- spiral case
- fixed
- hush pipe
- exhaust outlet
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Abstract
The utility model discloses a kind of regulable speed type pipeline centrifugal blower, comprise the external rotor electric machine of the vane rotary in spiral case and drive spiral case, described external rotor electric machine is fixed on spiral case sidewall, spiral case is fixed in cabinet, the exhaust outlet pipe of spiral case is fixed on the header board of cabinet, exhaust outlet on header board communicates with exhaust outlet pipe, the posterior medial wall of cabinet forms shaped as frame position limit cycle, hush pipe sleeve is at the rear portion of cabinet, the front-end face of hush pipe is pressed against on the sidewall of shaped as frame position limit cycle, rear portion retainer ring is fixed on the madial wall of cabinet, the ear end face of hush pipe is pressed against on the sidewall of rear portion retainer ring, air-flow plate is provided with in hush pipe, the middle part of air-flow plate is fixed with adjusting axle.Its structure is simple, and the exhaust outlet of cabinet and intake grill make its volume little in the same direction, profile rule, easy for installation, meanwhile, adopts forward-type impeller to improve its gas flow rate, improves static pressure, meet the pneumatic convey requirement of pipeline.
Description
Technical field:
The utility model relates to ventilation equipment technical field, relates to a kind of regulable speed type pipeline centrifugal blower in particular.
Background technique:
Existing centrifugal blower is generally that the intake grill be provided with from left side or the right side of spiral case enters, discharge from the exhaust outlet of spiral case, general and the intake grill of the exhaust outlet of spiral case is not or not same direction, its structure is not compact, the more difficult occasion being applied to narrow space, bothering very much when installing in the duct, connecting after pipeline must being turned.Meanwhile, its profile is irregular, is inconvenient to transport and install.
And existing centrifugal blower much adopts is backward type impeller, to reduce its noise, raise the efficiency, 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 its wind speed air quantity of existing centrifugal blower is generally only changed by motor, its limited efficiency, and also its noise is large, weak effect.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and provides a kind of regulable speed type pipeline centrifugal blower, and its structure is simple, the exhaust outlet of cabinet and intake grill make its volume little in the same direction, profile rule, easy for installation, simultaneously, forward-type impeller is adopted to improve its gas flow rate, improve static pressure, meet the pneumatic convey requirement of pipeline, and its built-in hush pipe be provided with air-flow plate, thus wind speed and air quantity can be regulated while noise reduction, meet the demand of state.
Technology solution of the present utility model is as follows:
A kind of regulable speed type pipeline centrifugal blower, comprise the external rotor electric machine of the vane rotary in spiral case and drive spiral case, described external rotor electric machine is fixed on spiral case sidewall, spiral case is fixed in cabinet, the exhaust outlet pipe of spiral case is fixed on the header board of cabinet, exhaust outlet on header board communicates with exhaust outlet pipe, the intake grill of spiral case faces toward the right sideboard of cabinet, cabinet plate without issue, the posterior medial wall of cabinet forms shaped as frame position limit cycle, hush pipe sleeve is at the rear portion of cabinet, the front-end face of hush pipe is pressed against on the sidewall of shaped as frame position limit cycle, rear portion retainer ring is fixed on the madial wall of cabinet, the ear end face of hush pipe is pressed against on the sidewall of rear portion retainer ring, air-flow plate is provided with in hush pipe, the middle part of air-flow plate is fixed with adjusting axle, in the jack that one end sleeve of adjusting axle has on the inside sidewalls wall of hush pipe, the other end of adjusting axle is fixed with rolling disc through hush pipe and cabinet successively, the edge of rolling disc has through hole, position-limited lever sleeve in through-holes, one end of position-limited lever is fixed with magnet piece, magnet piece is near cabinet, the other end of position-limited lever has briquetting, spring sleeve is in position-limited lever, spring one end puts forth effort on briquetting, the other end puts forth effort on rolling disc.
Described cabinet is cuboid, and it is welded to each other by left sideboard, right sideboard, top board, base plate and header board and forms; Contiguous block one end is fixed on left sideboard, the other end is fixed on the left side wall of spiral case, and the right side wall of spiral case forms intake grill, and the spacing of the right side wall of spiral case and the right sideboard of cabinet is for being greater than 5cm.
Described impeller is forward-type impeller, and the blade profile of impeller is arc-shaped, and the bending direction of blade is identical with vane rotary direction.
Described external rotor electric machine is fixed on the left side wall of spiral case, and the outer wall of the left side wall of spiral case is fixed with safety cover, and the afterbody of external rotor electric machine is in safety cover.
Described hush pipe is rectangular cylinder, and it is made up of outer cylinder body and porous slab inner barrel, is filled with glass silencing cotton in the cavity between outer cylinder body and porous slab inner barrel, and adjusting axle is hinged on outer cylinder body and porous slab inner barrel.
The beneficial effects of the utility model are:
1, its structure is simple, and the exhaust outlet of cabinet and intake grill make its volume little in the same direction, profile rule, easy for installation.
2, its impeller adopts forward-type impeller to improve its gas flow rate, improves static pressure, meets the pneumatic convey requirement of pipeline.
3, the volume after it adopts external rotor electric machine can reduce the connection of external rotor electric machine and impeller, also just reduce the overall volume of blower fan, meanwhile, the safety cover on the outer wall of the left side wall of spiral case can protect external rotor electric machine, makes it not sustain damage.
5, hush pipe is arranged in cabinet by it, and make the effect when volume inconvenience with noise reduction, meanwhile, its hush pipe is provided with air-flow plate, thus ensures air quantity regulating effect, meets different air quantity and wind speed requirement.
Accompanying drawing illustrates:
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the partial sectional view of backsight state of the present utility model;
Fig. 3 is the partial sectional view that state is looked on the right side of the present utility model;
Fig. 4 is the partial sectional view overlooking state of the present utility model;
Fig. 5 is the partial enlarged drawing of Fig. 4.
Embodiment:
Embodiment: see shown in Fig. 1 to 5, a kind of regulable speed type pipeline centrifugal blower, the external rotor electric machine 2 comprising spiral case 1 and drive the impeller 5 in spiral case 1 to rotate, described external rotor electric machine 2 is fixed on spiral case 1 sidewall, spiral case 1 is fixed in cabinet 3, the exhaust outlet pipe 11 of spiral case 1 is fixed on the header board 31 of cabinet 3, exhaust outlet 311 on header board 31 communicates with exhaust outlet pipe 11, the intake grill 12 of spiral case 1 faces toward the right sideboard 32 of cabinet 3, cabinet 3 is plate without male offspring, the posterior medial wall of cabinet 3 forms shaped as frame position limit cycle 34, hush pipe 35 sleeve is at the rear portion of cabinet 3, the front-end face of hush pipe 35 is pressed against on the sidewall of shaped as frame position limit cycle 34, rear portion retainer ring 36 is fixed on the madial wall of cabinet 3, the ear end face of hush pipe 35 is pressed against on the sidewall of rear portion retainer ring 36, air-flow plate 351 is provided with in hush pipe 35, the middle part of air-flow plate 351 is fixed with adjusting axle 352, in the jack 353 that one end sleeve of adjusting axle 352 has on the inside sidewalls wall of hush pipe 35, the other end of adjusting axle 352 is fixed with rolling disc 354 through hush pipe 35 and cabinet 3 successively, the edge of rolling disc 354 has through hole 355, position-limited lever 356 sleeve is in through hole 355, one end of position-limited lever 356 is fixed with magnet piece 357, magnet piece 357 is near cabinet 3, the other end of position-limited lever 356 has briquetting 358, spring 359 sleeve is in position-limited lever 356, briquetting 358 is put forth effort in spring 359 one end, the other end puts forth effort on rolling disc 354.
Further, described cabinet 3 is cuboid, and it is welded to each other by left sideboard 33, right sideboard 32, top board, base plate and header board 31 and forms; Contiguous block 4 one end is fixed on left sideboard 33, the other end is fixed on the left side wall of spiral case 1, the right side wall of spiral case 1 forms intake grill 12, and the spacing of the right side wall of spiral case 1 and the right sideboard 32 of cabinet 3 is for being greater than 5cm.
Further, described impeller 5 is forward-type impeller, and blade 51 cross section of impeller 5 is arc-shaped, and the bending direction of blade 51 is identical with vane rotary direction.
Further, described external rotor electric machine 2 is fixed on the left side wall of spiral case 1, the outer wall of the left side wall of spiral case 1 is fixed with safety cover 6, and the afterbody of external rotor electric machine 2 is in safety cover 6.
Further, described hush pipe 35 is rectangular cylinder, it is made up of outer cylinder body 10 and porous slab inner barrel 20, is filled with glass silencing cotton 30 in the cavity between outer cylinder body 10 and porous slab inner barrel 20, and adjusting axle 352 is hinged on outer cylinder body 10 and porous slab inner barrel 20.
Working principle: in figure, black arrow is airflow direction, due to cabinet 3 plate without male offspring, air-flow just enters from the rear end of cabinet 3, flow into from the spacing of the right sideboard 32 of the right side wall of spiral case 1 and cabinet 3, then entered by the intake grill 12 on the right side wall of spiral case 1, flow out from the exhaust outlet pipe 11 of spiral case 1 after being driven by the rotation of impeller 5, the through hole (i.e. exhaust outlet 311) formed on header board 31 is discharged.
The intake grill 12 of such cabinet 3 and exhaust outlet 311 in the same direction, make its volume little, and cabinet 3 are cuboid, its profile rule, convenient carrying and installation.Impeller 5 is forward-type impeller, improves its gas flow rate, improves static pressure.
And when regulating air quantity and wind speed, first can by the rotational speed regulation (external rotor electric machine 2 in the present embodiment is the variable-frequency motor of adjustable rotating speed) of the rotating shaft of external rotor electric machine 2, also can by rotating rolling disc 354, air-flow plate 351 is made to realize rotating, thus make hush pipe 35 and space between air-flow plate 351 change, thus have adjusted air quantity and wind speed, and after regulating, by pressing briquetting 358, making magnet piece 357 be adsorbed on cabinet 3 realizes fixing, and its adjustment is very convenient.
Claims (5)
1. a regulable speed type pipeline centrifugal blower, the external rotor electric machine (2) comprising spiral case (1) and drive the impeller (5) in spiral case (1) to rotate, it is characterized in that: described external rotor electric machine (2) is fixed on spiral case (1) sidewall, spiral case (1) is fixed in cabinet (3), the exhaust outlet pipe (11) of spiral case (1) is fixed on the header board (31) of cabinet (3), exhaust outlet (311) on header board (31) communicates with exhaust outlet pipe (11), the intake grill (12) of spiral case (1) is facing to the right sideboard (32) of cabinet (3), cabinet (3) is plate without male offspring, the posterior medial wall of cabinet (3) forms shaped as frame position limit cycle (34), hush pipe (35) sleeve is at the rear portion of cabinet (3), the front-end face of hush pipe (35) is pressed against on the sidewall of shaped as frame position limit cycle (34), rear portion retainer ring (36) is fixed on the madial wall of cabinet (3), the ear end face of hush pipe (35) is pressed against on the sidewall of rear portion retainer ring (36), air-flow plate (351) is provided with in hush pipe (35), the middle part of air-flow plate (351) is fixed with adjusting axle (352), in the jack (353) that one end sleeve of adjusting axle (352) has on the inside sidewalls wall of hush pipe (35), the other end of adjusting axle (352) is fixed with rolling disc (354) through hush pipe (35) and cabinet (3) successively, the edge of rolling disc (354) has through hole (355), position-limited lever (356) sleeve is in through hole (355), one end of position-limited lever (356) is fixed with magnet piece (357), magnet piece (357) is near cabinet (3), the other end of position-limited lever (356) has briquetting (358), spring (359) sleeve is in position-limited lever (356), briquetting (358) is put forth effort in spring (359) one end, the other end puts forth effort on rolling disc (354).
2. a kind of regulable speed type pipeline centrifugal blower according to claim 1, it is characterized in that: described cabinet (3) is cuboid, it is welded to each other by left sideboard (33), right sideboard (32), top board, base plate and header board (31) and forms; Contiguous block (4) one end is fixed on left sideboard (33), the other end is fixed on the left side wall of spiral case (1), the right side wall of spiral case (1) forms intake grill (12), the spacing of the right side wall of spiral case (1) and the right sideboard (32) of cabinet (3) is for being greater than 5cm.
3. a kind of regulable speed type pipeline centrifugal blower according to claim 1, it is characterized in that: described impeller (5) is forward-type impeller, blade (51) cross section of impeller (5) is arc-shaped, and the bending direction of blade (51) is identical with vane rotary direction.
4. a kind of regulable speed type pipeline centrifugal blower according to claim 1; it is characterized in that: described external rotor electric machine (2) is fixed on the left side wall of spiral case (1); the outer wall of the left side wall of spiral case (1) is fixed with safety cover (6), the afterbody of external rotor electric machine (2) is in safety cover (6).
5. a kind of regulable speed type pipeline centrifugal blower according to claim 1, it is characterized in that: described hush pipe (35) is rectangular cylinder, it is made up of outer cylinder body (10) and porous slab inner barrel (20), be filled with glass silencing cotton (30) in cavity between outer cylinder body (10) and porous slab inner barrel (20), adjusting axle (352) is hinged on outer cylinder body (10) and porous slab inner barrel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280669.0U CN204610326U (en) | 2015-04-30 | 2015-04-30 | A kind of regulable speed type pipeline centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280669.0U CN204610326U (en) | 2015-04-30 | 2015-04-30 | A kind of regulable speed type pipeline centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610326U true CN204610326U (en) | 2015-09-02 |
Family
ID=53962895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520280669.0U Expired - Fee Related CN204610326U (en) | 2015-04-30 | 2015-04-30 | A kind of regulable speed type pipeline centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610326U (en) |
-
2015
- 2015-04-30 CN CN201520280669.0U patent/CN204610326U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20190430 |