CN203948329U - A kind of centrifugal blower - Google Patents
A kind of centrifugal blower Download PDFInfo
- Publication number
- CN203948329U CN203948329U CN201420304773.4U CN201420304773U CN203948329U CN 203948329 U CN203948329 U CN 203948329U CN 201420304773 U CN201420304773 U CN 201420304773U CN 203948329 U CN203948329 U CN 203948329U
- Authority
- CN
- China
- Prior art keywords
- intake grill
- pipe
- centrifugal blower
- coupling
- fan casing
- 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.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of centrifugal blower, comprise fan casing, intake grill and impeller, it is characterized in that: described fan casing is provided with coupling, described coupling is connected with intake grill, and the mounting point of described intake grill and coupling can axially be adjusted; Described coupling is flanged (FLGD) pipe, and described pipe is connected with fan casing by flange, and described pipe and intake grill are bolted to connection, and the bolt hole of pipe is axial long strip hole.The utlity model has following beneficial effect: by adjusting the axial mounting point of intake grill and pipe, thereby adjust the gap between intake grill and impeller, and then reach the performance of adjusting centrifugal blower; Simple in structure, easy to operate.
Description
Technical field
The utility model relates to ventilation equipment, is specifically related to a kind of centrifugal blower
Background technique
The intake grill of centrifugal blower is connected with fan casing by flange at present, thereby the gap between intake grill and impeller is fixed value substantially when design, if adjust the performance of centrifugal blower, only to adjust the pressure of centrifugal blower by adjusting the rotating speed of impeller, adjust the rotating speed of impeller, general by changing belt pulley, or adjust operating frequency by frequency variator; For motor direct connection and be unworthy of the centrifugal blower of frequency variator, be generally by changing vane type line, to adjust the pressure of centrifugal blower, these modes not only can affect the blower fan manufacturing cycle, also can increase the manufacture cost of blower fan.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of centrifugal blower, the gap capable of regulating between its intake grill and impeller, thus reach the performance of adjusting centrifugal blower.
The technical solution that realizes the utility model object is: a kind of centrifugal blower, comprise fan casing, intake grill and impeller, it is characterized in that: described fan casing is provided with coupling, described coupling is connected with intake grill, and the mounting point of described intake grill and coupling can axially be adjusted.
Described coupling is flanged (FLGD) pipe, and described pipe is connected with fan casing by flange, and described pipe and intake grill are bolted to connection, and the bolt hole of pipe is axial long strip hole.By adjusting the axial mounting point of intake grill and pipe, thereby adjust the gap between intake grill and impeller.
A kind of centrifugal blower of the utility model has following beneficial effect: by adjusting the axial mounting point of intake grill and pipe, thereby adjust the gap between intake grill and impeller, and then reach the performance of adjusting centrifugal blower; Simple in structure, easy to operate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is elaborated;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the assembling decomposing schematic representation of intake grill and transition tube.
Embodiment
As shown in Figure 1 and Figure 2, a kind of centrifugal blower, comprise fan casing 1, intake grill 2, impeller 3, also comprise one flanged 4.1 pipe 4, described pipe 4 is connected with fan casing 1 by flange 4.1, and the air intake 2.1 of intake grill 2 is straight tube-like, and air intake 2.1 is inserted in pipe 4, air intake 2.1 is bolted to connection with pipe 4, and the bolt hole 4.2 of described pipe 4 is long strip hole.According to gap requirement between intake grill and impeller, the axial mounting point of intake grill and pipe is adjusted, tight a bolt.
Claims (2)
1. a centrifugal blower, comprises fan casing, intake grill and impeller, it is characterized in that: described fan casing is provided with coupling, and described coupling is connected with intake grill, and the mounting point of described intake grill and coupling can axially be adjusted.
2. centrifugal blower according to claim 1, is characterized in that: described coupling is flanged (FLGD) pipe, and described pipe is connected with fan casing by flange, and described pipe and intake grill are bolted to connection, and the bolt hole of pipe is axial long strip hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304773.4U CN203948329U (en) | 2014-06-09 | 2014-06-09 | A kind of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304773.4U CN203948329U (en) | 2014-06-09 | 2014-06-09 | A kind of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948329U true CN203948329U (en) | 2014-11-19 |
Family
ID=51890366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420304773.4U Expired - Lifetime CN203948329U (en) | 2014-06-09 | 2014-06-09 | A kind of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822594A (en) * | 2016-05-09 | 2016-08-03 | 付淑珍 | Ventilator with multifunctional air inlet connector |
-
2014
- 2014-06-09 CN CN201420304773.4U patent/CN203948329U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822594A (en) * | 2016-05-09 | 2016-08-03 | 付淑珍 | Ventilator with multifunctional air inlet connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141119 |