CN2170396Y - Centrifugal ventilator with features of double-wind intake, changeable direction and low-noise - Google Patents
Centrifugal ventilator with features of double-wind intake, changeable direction and low-noise Download PDFInfo
- Publication number
- CN2170396Y CN2170396Y CN 93214378 CN93214378U CN2170396Y CN 2170396 Y CN2170396 Y CN 2170396Y CN 93214378 CN93214378 CN 93214378 CN 93214378 U CN93214378 U CN 93214378U CN 2170396 Y CN2170396 Y CN 2170396Y
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- intake
- air
- low noise
- double
- features
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- Expired - Fee Related
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Abstract
The utility model provides a centrifugal ventilator with the features of double-wind intake, changeable direction and low noise. The utility model is characterized in that the centrifugal ventilator with the features of double-wind intake, changeable direction and low noise are provided with a radical air intake and an axial air intake; different air intakes can be selected as needed. The dynamic force of a motor is transmitted into an impeller shaft from the middle part of a double impeller. Preset air chambers are also arranged at the points of the air intakes. The centrifugal ventilator with the features of double-wind intake, changeable direction and low noise can conveniently change the direction of air intake in order to be adapted for the requirements of environment. The utility model has the advantages of small ground occupation, high wind-conveying efficiency and low noise; the installation that the centrifugal ventilator with features of double-wind intake, changeable direction and low noise is externally connected with a pipeline is very convenient.
Description
The utility model relates to a kind of environment protection equipment, particularly a kind of two air intake centrifugal ventilation plants that change the intake grill direction.
Two air intake centrifugal ventilators are directly or through belt transmission to drive two impellers by motor, suck by two suction ports respectively and are transferred gas, under the centrifugal action of impeller, gas are dished out outside the body by exhaust outlet.It is big that it has a gas flow, and the advantage of moderate pressure is mainly used in general cold air engineering and the ventilating engineering.Two air intake centrifugal ventilators of producing both at home and abroad mainly contain two kinds at present: a kind of is air inlet through hollow shaft, and intake grill and exhaust outlet are at an angle of 90; Another kind is an air intake radially, and intake grill and exhaust outlet are same direction.The shortcoming of these two kinds of centrifugal blowers is: 1, and the import and export of air-flow are fixed, and can not change according to the variation of environment; 2, motor power is from an end of impeller shaft, and promptly the outside of impeller is imported into, makes the complete machine floor space big, and concerning the ventilator of air inlet through hollow shaft, will hinder the intake grill piping erection of motor place one side and influence the air output of this intake grill.
The purpose of this utility model provides a kind of two air intake centrifugal ventilators that can conform to greatest extent and require, and it can air inlet through hollow shaft, also can be transformed into radially air intake.
The utility model is achieved in that two air intake centrifugal ventilators are provided with radially intake grill and air inlet through hollow shaft mouth, but and the noise elimination door of convenient assembling and disassembling.When needs radially during air intake, the door of eliminating the noise can be contained on the air inlet through hollow shaft mouth; When the needs air inlet through hollow shaft, the door of eliminating the noise can be contained in radially on the intake grill.Driving force member places in the middle of two impellers.
The utility model can change the air intake direction easily, the requirement that conforms to greatest extent, and floor space is little, air-supply efficient height, the installation of external pipe installation and ventilator itself is all very simple and convenient, and the operation noise is low.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a left TV structure cross-sectional schematic of the present utility model.
Fig. 3 is a schematic top plan view of the present utility model.
Be air intake form radially as shown, power drives two impellers 11 by motor 2 by driving force member 8 and rotates, make and be transferred gas and be inhaled in the housing 3 from intake grill 18 radially, through being fixed on flow distribution plate 19 shuntings on the two spiral case header boards 7, enter both sides respectively and preset air chamber 13 by what form between spiral case header board 7 and housing 3 sidewalls, enter in two spiral cases 21 by guide pipe 6, dished out by two impellers 11 that rotate, by being fixed on after the collector plate 20 on the plate 10 is steadily converged two strands of air-flows behind two spiral cases, be sent exhaust outlet 17, reach the purpose of ventilation.The door 5 of eliminating the noise is installed in the repetitive process that prevents air inlet through hollow shaft on two air inlet through hollow shaft mouths 4,12 and impeller operation noise is carried out sound-absorbing, reflection, sound-absorbing.Plate 10 is fastened on the inwall of housing 3 behind spiral case header board 7 and the spiral case, tightly clips spiral case bent plate 16 behind spiral case header board 7 and the spiral case between the plate 10, forms spiral case 21.
When adopting the air inlet through hollow shaft form, the noise elimination door 5 that is contained on two air inlet through hollow shaft mouths 4,12 can be unloaded (also one of them can be unloaded separately), and will eliminate the noise and 5 be contained on the reducer pipe 14, block radially intake grill 18.At this moment, be transferred gas and enter housing 3, sucked spiral cases 21 exhaust outlet 17 of being dished out by impeller 11 through presetting air chamber 13 by air inlet through hollow shaft mouth 4,14.
For avoiding influencing the installation of ventilation duct and guarantee air intake, driving force member 8 is installed in the middle of two impellers.Driving force member can adopt belt transmission, also can adopt chain-driven or gear-driven form.
This device is connected with fixture by base 9.The electrical machinery cover 1 that dust control and noise absorption is used is housed outside the motor 2.Air inlet through hollow shaft mouth 4,12 and exhaust outlet 17 all be equipped with can with conveyance conduit flange connecting 22.
Structure as shown in the figure for making compact integral structure, has only adopted a radially intake grill 18.Bigger as working space, also can adopt two the same big radially intake grills with the air inlet through hollow shaft mouth, then can save reducer pipe 14.
Claims (5)
- But 1, a kind of pair of air intake break-in low noise centrifugal blower, form by motor, driving force member, impeller, exhaust outlet, housing etc., it is characterized in that having radially intake grill and air inlet through hollow shaft mouth, and the noise elimination door that can on intake grill, load and unload easily, power transmission places between two impellers.
- But 2, according to claim 1 pair of air intake break-in low noise centrifugal blower is characterized in that being provided with between the impeller outside and the air inlet through hollow shaft mouth and presets air compartment.
- 3, but according to claim 1 pair of air intake break-in low noise centrifugal blower is characterized in that radially in the intake grill flow distribution plate being housed, and collector plate is housed in the exhaust outlet.
- 4, but according to claim 1 pair of air intake break-in low noise centrifugal blower is characterized in that radially on the intake grill reducer pipe can being housed.
- 5, but according to claim 2 pair of air intake break-in low noise centrifugal blower is characterized in that presetting between air chamber and the impeller guide pipe is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214378 CN2170396Y (en) | 1993-05-24 | 1993-05-24 | Centrifugal ventilator with features of double-wind intake, changeable direction and low-noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214378 CN2170396Y (en) | 1993-05-24 | 1993-05-24 | Centrifugal ventilator with features of double-wind intake, changeable direction and low-noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2170396Y true CN2170396Y (en) | 1994-06-29 |
Family
ID=33795186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93214378 Expired - Fee Related CN2170396Y (en) | 1993-05-24 | 1993-05-24 | Centrifugal ventilator with features of double-wind intake, changeable direction and low-noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2170396Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295438C (en) * | 2003-09-15 | 2007-01-17 | 海尔集团公司 | Blower fan with single electric machine and bilobed wheel |
-
1993
- 1993-05-24 CN CN 93214378 patent/CN2170396Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295438C (en) * | 2003-09-15 | 2007-01-17 | 海尔集团公司 | Blower fan with single electric machine and bilobed wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |