CN2078385U - Roof ventilator - Google Patents
Roof ventilator Download PDFInfo
- Publication number
- CN2078385U CN2078385U CN 90215294 CN90215294U CN2078385U CN 2078385 U CN2078385 U CN 2078385U CN 90215294 CN90215294 CN 90215294 CN 90215294 U CN90215294 U CN 90215294U CN 2078385 U CN2078385 U CN 2078385U
- Authority
- CN
- China
- Prior art keywords
- ventilator
- air duct
- air cylinder
- motor
- roof ventilator
- 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 utility model relates to a roof ventilator which belongs to ventilating and exhausting equipment of the field of fluid machinery. The ventilator is composed of a motor, blades of the ventilator, an air cylinder of the ventilator and an air cover. A flow guiding element and a flow guiding blade, the rotating direction of which is 180 DEG and the sectional plane of which is a semicircle, are arranged on an outlet of the air cylinder under the air cover. The flow guiding element and the air cylinder are made into an integral structure. The roof ventilator adopts a double-speed motor for use. The local part of the air cylinder of the ventilator is made into an open inspection door. The roof ventilator reduces the air exhausting resistance in the roof ventilator, and has obvious energy-saving effect. The local part of the air cylinder of the ventilator is made into the open inspection door to be favorable for inspection and maintenance.
Description
Roof ventilator is the ventilation exhaust equipment that belongs in the field of fluid machinery.
Roof ventilator is the ideal equipment of large-sized workshop ventilation air draft, roof ventilator exhaust port on the domestic and international market is unkitted guide vane and conducting element at present, it is big to exist flowing resistance, the disadvantage that energy consumption is high, motor is placed on maintenance inconvenience in the blower fan air duct, the unit that has is placed on air duct external application belt transmission with motor, not only improved cost, and belt easily skids, need go up the roof as tightening belt, very inconvenient, especially for the lightweight construction roofing, as the new factory building deck of Shanghai Da Zhong Hua Rubber Factory is the only steel plate of δ=1.2m m of wall thickness, more sense inconvenience of maintenance.
The purpose of this utility model is to overcome the deficiency of above-mentioned roof ventilator, in order to reduce exhaust resistance in the blower fan significantly, cuts down the consumption of energy, convenient maintenance.
Formation of the present utility model be provided with in blower fan air duct outlet port turn to be 180 ° guide vane and and the blower fan air duct make the conducting element of one, flow resistance is reduced greatly, generally can reduce flow resistance 50～60%, thereby reduce energy consumption.The blower fan air duct is made opening type, in order to maintenance.
Accompanying drawing is a structure principle chart of the present utility model, and 1 is guide vane among the figure, the 2nd, and fan housing, the 3rd, conducting element, the 4th, fan blade, the 5th, blower fan air duct, the 6th, motor, the 7th, the hinge of access door, the 8th, the screw of installation fan housing and guide vane, the 9th, electric machine support.
Specific embodiment of the utility model is equipped with below blower fan fan housing 2 and turns to 180 °, section is the guide vane 1 of semicircular arc, upper end at fan blade 4, air duct 5 internal surfaces are equipped with contraction conducting element 3 near blower fan air duct 5 outlet end, this conducting element 3 can be made solid or thin-walled connects, and makes conducting element 3 and blower fan air duct 5 make an overall structure.Gas elder generation process conducting element 3 and guide vane 1 through fan blade 4 is upwards discharged can make flow resistance reduce greatly, in order to energy-conservation.Fan housing 2 and guide vane 1, fixing between 3 between water conservancy diversion with screw 8.The access door of opening type is made in blower fan air duct 5 parts, and access door and air duct 5 main bodys link with hinge 7.Motor 6 adopts double-speed motor, can use low-speed running at night, is beneficial to energy-saving and noise-reducing.
The utility model reduces circulating resistance owing at the blower fan exhaust port guide vane and conducting element are installed greatly, and obvious energy-saving effect is arranged, and is 5 * 10 as a flow
4Rice
3/ hour blower fan, fall the resistance 10 column, can year the economize on electricity 8000 the degree.Because blower fan adopts double-speed motor, more increases energy-saving effect, the blower fan air duct is made opening type, so that maintenance, weight reduction reduces cost, and can reduce the workload that the workman tightens belt, and this roof ventilator huge market demand can be produced in batches.
Claims (1)
1, a kind of by motor 6, fan blade 4, fan housing 2, the roof ventilator that blower fan air duct 5 is formed, it is characterized in that below fan housing 2, being equipped with the guide vane 1 that to turn to 180 ° of sections be semicircular arc, in fan blade 4 upper ends, internal surface is made the conducting element 3 that contraction is solid or thin-walled connects near air duct 5 outlet end, conducting element 3 is made an overall structure in air duct 5, fan housing 2, guide vane 1, fixing between the conducting element 3 with screw 8, motor 6 adopts double-speed motor, and the blower fan air duct is made the opening type access door 5 innings, and access door is connected with hinge 7 with air duct 5 main bodys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90215294 CN2078385U (en) | 1990-09-10 | 1990-09-10 | Roof ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90215294 CN2078385U (en) | 1990-09-10 | 1990-09-10 | Roof ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2078385U true CN2078385U (en) | 1991-06-05 |
Family
ID=4894597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90215294 Withdrawn CN2078385U (en) | 1990-09-10 | 1990-09-10 | Roof ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2078385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395035C (en) * | 2006-04-13 | 2008-06-18 | 上海交通大学 | Centrifugal dust separator |
| CN107620721A (en) * | 2017-10-18 | 2018-01-23 | 浙江金盾风机股份有限公司 | A kind of double blast cap axial-flow roof ventilators |
-
1990
- 1990-09-10 CN CN 90215294 patent/CN2078385U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395035C (en) * | 2006-04-13 | 2008-06-18 | 上海交通大学 | Centrifugal dust separator |
| CN107620721A (en) * | 2017-10-18 | 2018-01-23 | 浙江金盾风机股份有限公司 | A kind of double blast cap axial-flow roof ventilators |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |