CN205173051U - Energy -efficient centrifugal fan's impeller front disc and air intake combination unit - Google Patents
Energy -efficient centrifugal fan's impeller front disc and air intake combination unit Download PDFInfo
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- CN205173051U CN205173051U CN201520795664.1U CN201520795664U CN205173051U CN 205173051 U CN205173051 U CN 205173051U CN 201520795664 U CN201520795664 U CN 201520795664U CN 205173051 U CN205173051 U CN 205173051U
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- front disc
- intake grill
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- air intake
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Abstract
The utility model discloses an energy -efficient centrifugal fan's impeller front disc and air intake combination unit, including awl arc shroud 3, sealed reinforcing ring 2 and air intake 1, sealed reinforcing ring 2 is located the import department at awl arc shroud 3, air intake 1 is located the front end at sealed reinforcing ring 2 to be bayonet structure with sealed reinforcing ring 2, the air intake is convex the setting with awl arc shroud 3 in linking department, this energy -efficient centrifugal fan's impeller front disc and air intake combination unit can reduce leakage and eddy current loss, improves fan efficiency and impeller rigidity, intensity, and reduces the noise.
Description
Technical field
The utility model relates to a kind of impeller front disc and intake grill connecting device of energy-efficient centrifugal blower, belongs to blower fan technical field.
Background technique
At present, be widely used in impeller front disc and the intake grill connecting device of the centrifugal blower of the industries such as cement, electric power, building materials, metallurgy, petrochemical industry, coal, mine and environmental protection, most without sealing stiffening ring, shroud is taper shroud, and intake grill and shroud front portion are non-circular arc dovetail.Use the blower fan of this device, exist and easily form the problems such as internal leakage loss, efficiency is low, noise is high, strength rigid is poor.
Summary of the invention
The technical problems to be solved in the utility model is to provide one can reduce leakage and eddy current loss, improves fan efficiency and impeller rigidity, intensity reduce impeller front disc and the intake grill combined unit of the energy-efficient centrifugal blower of noise.
For solving the problem, the utility model adopts following technological scheme:
A kind of impeller front disc of energy-efficient centrifugal blower and intake grill combined unit, comprise cone arc-shaped front disc, sealing stiffening ring and intake grill, described sealing stiffening ring is located at the inlet of cone arc-shaped front disc, described intake grill is located at the front end of sealing stiffening ring, and be plug in construction with sealing stiffening ring, described intake grill and cone arc-shaped front disc are that circular arc is arranged at joining place.
As preferably, described cone arc-shaped front disc is made up of shroud arcuate segment and shroud conical section, and described shroud arcuate segment is by steel plate spinning or compression molding, and section is circular arc, and described shroud conical section is rolled by steel plate and forms, and section is shape linearly; The shroud of this structure, ensure that the smoothness of air-flow at impeller internal, avoids the generation of eddy current, decrease flow losses.
As preferably, the steel plate that described sealing stiffening ring is greater than cone arc-shaped front disc by thickness rolls and forms, and be welded on cone arc-shaped front disc inlet, this sealing stiffening ring, both ensure that impeller intensity and rigidity, and in turn ensure that circularity and control the radial clearance with intake grill, decreasing the leakage loss of impeller and the generation of eddy current, improve efficiency, reduce noise.
As preferably, described intake grill is by steel plate spinning or compression molding, and section is that circular cone arc is arranged, this intake grill, and not only smooth and easy gas enters the flowing before impeller, has also arranged the air-flow entering impeller, has decreased eddy current loss, improve fan efficiency.
The beneficial effects of the utility model are: the intake grill of setting is plug in construction with sealing stiffening ring, ensure that intake grill and the radial clearance of sealing stiffening ring, decreases leakage loss; Intake grill and shroud are that circular arc is arranged at joining place, meet the pneumatic design of fluid, have taken into full account the practical flow field distribution of impeller internal gas, have followed air current flow rule, improve fan efficiency, energy-efficient; Sealing stiffening ring is welded on the inlet of cone arc-shaped front disc, improves rigidity and the intensity of impeller, ensure that fan safe is run.
Accompanying drawing explanation
Fig. 1 is the impeller front disc of a kind of energy-efficient centrifugal blower of the utility model and the structural representation of intake grill combined unit.
Embodiment
Consult shown in Fig. 1, a kind of impeller front disc of energy-efficient centrifugal blower and intake grill connecting device, comprise cone arc-shaped front disc 3, sealing stiffening ring 2 and intake grill 1, described sealing stiffening ring 2 is arranged on the inlet of cone arc-shaped front disc 3, described intake grill 1 is arranged on the front end of sealing stiffening ring 2, and described intake grill 1 and cone arc-shaped front disc 3 are that circular arc is arranged at joining place.
During work, the gas in runner first shrinks through intake grill 1, then spreads, then enters impeller internal, airflow smooth from cone arc-shaped front disc 3 front portion sleekly, decreases flow losses.Gas, after obtaining the energy that rotation blade gives, to be dished out impeller along the track of blade by centrifugal force; Sealing stiffening ring 2 improves impeller rigidity, ensures while device security, because of the guarantee in circularity and gap, decreases internal gas and leaks and eddy current, improve efficiency.
The beneficial effects of the utility model are: the intake grill of setting is plug in construction with sealing stiffening ring, ensure that intake grill and the radial clearance of sealing stiffening ring, decreases leakage loss; Intake grill and shroud are that circular arc is arranged at joining place, meet the pneumatic design of fluid, have taken into full account the practical flow field distribution of impeller internal gas, have followed air current flow rule, improve fan efficiency, energy-efficient; Sealing stiffening ring is welded on the inlet of cone arc-shaped front disc, improves rigidity and the intensity of impeller, ensure that fan safe is run.
The above, be only embodiment of the present utility model, but protection domain of the present utility model is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed in the new protection domain of this practicality and be as the criterion.
Claims (4)
1. the impeller front disc of an energy-efficient centrifugal blower and intake grill combined unit, it is characterized in that: comprise cone arc-shaped front disc (3), sealing stiffening ring (2) and intake grill (1), described sealing stiffening ring (2) is located at the inlet of cone arc-shaped front disc (3), described intake grill (1) is located at the front end of sealing stiffening ring (2) and with sealing stiffening ring (2) in plug in construction, described intake grill (1) and cone arc-shaped front disc (3) are that circular arc is arranged at joining place.
2. the impeller front disc of energy-efficient centrifugal blower according to claim 1 and intake grill combined unit, it is characterized in that: described cone arc-shaped front disc (3) is made up of shroud arcuate segment and shroud conical section, described shroud arcuate segment is by steel plate spinning or compression molding, section is circular arc, described shroud conical section is rolled by steel plate and forms, and section is shape linearly.
3. the impeller front disc of energy-efficient centrifugal blower according to claim 1 and 2 and intake grill combined unit, it is characterized in that: the steel plate that described sealing stiffening ring (2) is greater than cone arc-shaped front disc (3) by thickness rolls and forms, and be welded on the inlet of cone arc-shaped front disc (3).
4. the impeller front disc of energy-efficient centrifugal blower according to claim 1 and intake grill combined unit, is characterized in that: described intake grill (1) is by steel plate spinning or compression molding, and section is arranged in cone arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795664.1U CN205173051U (en) | 2015-10-15 | 2015-10-15 | Energy -efficient centrifugal fan's impeller front disc and air intake combination unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795664.1U CN205173051U (en) | 2015-10-15 | 2015-10-15 | Energy -efficient centrifugal fan's impeller front disc and air intake combination unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173051U true CN205173051U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520795664.1U Active CN205173051U (en) | 2015-10-15 | 2015-10-15 | Energy -efficient centrifugal fan's impeller front disc and air intake combination unit |
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| CN (1) | CN205173051U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952685A (en) * | 2016-06-23 | 2016-09-21 | 常山卫邦风机有限公司 | Efficient centrifugal fan front disc and intake port model capable of being commonly used |
| CN107917100A (en) * | 2017-10-26 | 2018-04-17 | 珠海格力电器股份有限公司 | The connection structure and air-conditioning of baffle liner and fan impeller front disc |
| CN107965475A (en) * | 2017-05-09 | 2018-04-27 | 宁波方太厨具有限公司 | A kind of noise reducing type radial fan |
| CN108278221A (en) * | 2018-04-26 | 2018-07-13 | 重庆通用工业(集团)有限责任公司 | Inlet seal structure and wind turbine |
| CN114871706A (en) * | 2022-06-06 | 2022-08-09 | 山东省章丘鼓风机股份有限公司 | Connecting method of explosion-proof device of air inlet of centrifugal fan |
| CN115351512A (en) * | 2022-09-05 | 2022-11-18 | 山东省章丘鼓风机股份有限公司 | Machining method for conical arc-shaped air inlet of ventilator |
-
2015
- 2015-10-15 CN CN201520795664.1U patent/CN205173051U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952685A (en) * | 2016-06-23 | 2016-09-21 | 常山卫邦风机有限公司 | Efficient centrifugal fan front disc and intake port model capable of being commonly used |
| CN107965475A (en) * | 2017-05-09 | 2018-04-27 | 宁波方太厨具有限公司 | A kind of noise reducing type radial fan |
| CN107917100A (en) * | 2017-10-26 | 2018-04-17 | 珠海格力电器股份有限公司 | The connection structure and air-conditioning of baffle liner and fan impeller front disc |
| CN107917100B (en) * | 2017-10-26 | 2019-03-26 | 珠海格力电器股份有限公司 | The connection structure and air-conditioning of baffle liner and fan impeller front disc |
| CN108278221A (en) * | 2018-04-26 | 2018-07-13 | 重庆通用工业(集团)有限责任公司 | Inlet seal structure and wind turbine |
| CN108278221B (en) * | 2018-04-26 | 2024-02-06 | 重庆通用工业(集团)有限责任公司 | Air inlet sealing structure and fan |
| CN114871706A (en) * | 2022-06-06 | 2022-08-09 | 山东省章丘鼓风机股份有限公司 | Connecting method of explosion-proof device of air inlet of centrifugal fan |
| CN115351512A (en) * | 2022-09-05 | 2022-11-18 | 山东省章丘鼓风机股份有限公司 | Machining method for conical arc-shaped air inlet of ventilator |
| CN115351512B (en) * | 2022-09-05 | 2023-11-10 | 山东省章丘鼓风机股份有限公司 | Machining method of conical arc-shaped air inlet of ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 324200 Changshan Industrial Park, Changshan County, Zhejiang, Quzhou Patentee after: Zhejiang Weibang fan Co., Ltd Address before: 324200 Changshan Industrial Park, Zhejiang, Quzhou Patentee before: CHANGSHAN VIBON FAN Co.,Ltd. |