CN204942029U - The special exhaust fan of a kind of high temperature papermaking - Google Patents
The special exhaust fan of a kind of high temperature papermaking Download PDFInfo
- Publication number
- CN204942029U CN204942029U CN201520719606.0U CN201520719606U CN204942029U CN 204942029 U CN204942029 U CN 204942029U CN 201520719606 U CN201520719606 U CN 201520719606U CN 204942029 U CN204942029 U CN 204942029U
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- China
- Prior art keywords
- mounting plate
- motor mounting
- motor
- thermal shield
- high temperature
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Abstract
The utility model discloses the special exhaust fan of a kind of high temperature papermaking, comprise motor mounting plate, be arranged in motor and the centrifugal impeller of motor mounting plate both sides, described motor mounting plate is provided with thermal shield towards the side of motor; Sink and be close to motor mounting plate side and form the motorized cavity of peace in the middle part of thermal shield, filling with insulation material between all the other position and motor mounting plates, the thickness of described thermal-protective material is thickening gradually along thermal shield radial direction.The utility model, according to aerodynamic principle, is optimized blower fan structure, and increase impeller back-up ring plate, inlets and putlets of ventilation is arranged on best air inlet/outlet position, saves worm frame simultaneously, simple and reasonable, reduces fabricating cost; It is direct-connected that motor and centrifugal impeller pass through axle sleeve, and slip ring on motor mounting plate, makes blower fan structure simpler by support integral installation.
Description
Technical field
The utility model relates to a kind of exhaust fan, particularly relates to the special exhaust fan of a kind of high temperature papermaking.
Background technique
Blower fan is widely used in factory, mine, tunnel, cooling tower, vehicle, the ventilation of boats and ships and building, dust discharge and cooling, the ventilation of boiler and industrial furnace and air inducing, cooling in the apparatus of air conditioning and domestic electric appliance and ventilation, the oven dry of cereal and selecting and recommending, the inflation of wind-tunnel wind regime and Hovercraft and propelling etc.Blower fan is the mechanical energy relying on input, and improve gas pressure and to supply gas side by side the machinery of body, it is a kind of driven fluid machinery.The working principle of blower fan is substantially identical with turbocompressor, and just because gas flow rate is lower, pressure change is little, does not generally need the change considering gas specific volume, namely using gas as incompressible fluid process.
On paper production line, gas hood dries one of shaping critical process of part papermaking, and drying room temperature is higher, and humidity is comparatively large, and it is large to take up an area volume.Paper pulp had to pass through high-temperature dryer shaping before becoming finished paper, and oven dry blower fan all adopted axial-flow blower and large centrifugal fan in the past.Such as publication number is that the Chinese utility model patent of CN202360432U discloses the extraordinary axial-flow blower of a kind of papermaking, comprise motor, be fixed on impeller on motor output shaft and air duct, the thermal shield of a taper is with outside motor, the intake grill section of air duct has the slip ring of a taper, the large end of thermal shield is fixed on a timber set, be connected with several intake grill stators between the outer circumferential face of thermal shield and the inner peripheral surface of slip ring, the base of motor is fixed on the inner peripheral surface of thermal shield by electric machine support.Motor output shaft between the front cover of motor and impeller is provided with a cooling fan blade, owing to being with the thermal shield of a taper outside motor, hot and humid air and motor are completely cut off and opens, motor is worked under normal temperature condition, ensure that the normal operation of motor, simultaneously, the closing in shape intake grill surrounded by slip ring and thermal shield, and pass through the water conservancy diversion of intake grill stator, improve the blast of blower fan, meet the blast condition of paper pulp baking needed.
But common axial flow fan pressure is lower, common centrifugal blower volume is comparatively large, Heavy Weight, and airduct complicated layout etc., are to meet little, the lightweight feature of volume that should meet, meet high-temp resisting high-humidity resisting again, and the uniform feature of heat extraction.
Model utility content
For overcoming problems of the prior art; the utility model provides a kind of compact structure, the special exhaust fan of high temperature papermaking easy for installation; thermal shield is provided with between motor mounting plate and motor; and be filled with thermal-protective material; good heat-insulation effect; there is the effect of protection motor, maintain the normal operation of motor.
Concrete technological scheme of the present utility model is as follows:
The special exhaust fan of a kind of high temperature papermaking, comprise motor mounting plate, be arranged in motor and the centrifugal impeller of motor mounting plate both sides, described motor mounting plate is provided with thermal shield towards the side of motor;
Sink and be close to motor mounting plate side and form the motorized cavity of peace in the middle part of thermal shield, filling with insulation material between all the other position and motor mounting plates, the thickness of described thermal-protective material is thickening gradually along thermal shield radial direction.
In the utility model, motor is arranged on the sagging middle part of thermal shield, and without thermal-protective material between thermal shield herein and motor mounting plate, the installation being conducive to motor is fixed; Simultaneously according to the wind direction of centrifugal impeller, the heat that air-flow carries more is gathered in the edge of thermal shield, and the thickness therefore arranging thermal-protective material is thickening gradually along thermal shield radial direction, to strengthen the effect of heat insulation of marginal position, avoids motor to receive high temperature gas flow impact.
As preferably, the air inlet of described centrifugal impeller is equipped with slip ring, and have the effect increasing air output, described slip ring is fixed on motor mounting plate by slip ring support.
As preferably, the side of described motor mounting plate is provided with the impeller back-up ring slightly larger than centrifugal impeller diameter, for improving air distribution.
As preferably, the side of described motor mounting plate is provided with the mounting plate stiffening plate be periphery outside thermal shield.
By arranging mounting plate stiffening plate in the edge of motor mounting plate, to increase the structural strength of motor mounting plate, meet the strength demand of motor mounting plate.
As preferably, in the middle part of described thermal shield, be provided with the cooling wind wheel be arranged on the spindle nose of motor.
Cooling wind wheel is used for cool motors, reduce the temperature in motor operation course, simultaneously because the thickness of thermal-protective material is thickening gradually along thermal shield radial direction, thermal shield relatively middle part has certain gradient, form the guiding surface guiding cooling wind wheel air-flow, the air-flow that accelerating cooling wind wheel produces is discharged, the effect that cools of lifting motor.
Preferably, the periphery of described cooling wind wheel is provided with protective housing.
Protective housing has the effect of protection cooling wind wheel, prevents extraneous foreign material from falling into the position of cooling residing for wind wheel, destroys or affect it and normally run.
The utility model, according to aerodynamic principle, is optimized blower fan structure, and increase impeller back-up ring plate, inlets and putlets of ventilation is arranged on best air inlet/outlet position, saves worm frame simultaneously, simple and reasonable, reduces fabricating cost; It is direct-connected that motor and centrifugal impeller pass through axle sleeve, and slip ring is by support, and integral installation, on motor mounting plate, makes blower fan structure simpler.
Accompanying drawing explanation
Fig. 1 is the utility model exhaust fan structural representation.
Fig. 2 is the utility model motor mounting plate Facad structure schematic diagram.
In figure, 1-slip ring support, 2-thermal-protective material, 3-centrifugal impeller, 4-cools wind wheel, 5-motor, 6-protective housing, 7-thermal shield, 8-impeller back-up ring, 9-slip ring, 10-motor mounting plate, 11-intake grill, 12-mounting plate stiffening plate, 13-hanger.
Embodiment
As depicted in figs. 1 and 2, the special exhaust fan of high temperature papermaking in the present embodiment is made up of slip ring support 1, thermal-protective material 2, centrifugal impeller 3, cooling wind wheel 4, motor 5, protective housing 6, thermal shield 7, impeller back-up ring 8, slip ring 9, motor mounting plate 10, intake grill 11, mounting plate stiffening plate 12 and hanger 13.
Motor 5 and centrifugal impeller 3 are arranged in motor mounting plate 10 both sides, thermal shield 7 is arranged on the side of motor mounting plate 10 towards motor 5, sink and form motor installation position in the middle part of thermal shield 7, and thermal shield 7 center portion is close to motor mounting plate 10 side, filling with insulation material 2 between all the other positions and motor mounting plate 10, the thickness of thermal-protective material 2 is thickening gradually along thermal shield 7 radial direction, utilizes thermal-protective material 2 and thermal shield 7 to completely cut off air-flow heat, avoids the normal operation affecting motor 5.
Slip ring 9 is arranged on intake grill 11 place of centrifugal impeller 3, and have the effect increasing air output, this slip ring 9 is fixed on motor mounting plate 10 by slip ring support 1.The side of motor mounting plate 10 is provided with the impeller back-up ring 8 slightly larger than centrifugal impeller 3 diameter, for improving air distribution.
The side of motor mounting plate 10 is provided with the mounting plate stiffening plate 12 be periphery outside thermal shield 7, is increased the structural strength of motor mounting plate 10 by mounting plate stiffening plate 12, meets the strength demand of motor mounting plate.
Have the cooling wind wheel 4 on the spindle nose being arranged on motor 5 in the middle pocket of thermal shield 7, the periphery of cooling wind wheel 4 is provided with protective housing 6, has the effect of protection cooling wind wheel.
In the present embodiment, centrifugal impeller 3 is directly connected with motor 5, cooling wind wheel is arranged on the spindle nose of motor 5, then integral installation is on motor mounting plate 10, and at centrifugal impeller 3 inlet side slip ring 9, slip ring is directly welded to connect by slip ring support 1 and motor mounting plate 10, slip ring 9 import arranges intake grill 11, simultaneously in order to ensure that air-flow is planned as a whole, at centrifugal impeller 3 arranged outside impeller back-up ring 8, to improve air distribution.In order to reach effect of heat insulation, outside motor mounting plate 10, arrange thermal-protective coating, thermal-protective coating is made up of thermal-protective material 2 and thermal shield 7, thermal shield 7 and motor mounting plate 10 directly welding fabrication.In order to play the effect of heat radiation to motor, cooling wind wheel 4 is set inside motor shaft end, and configuration cooling wind wheel protective housing 6.Hanger 13 is installed for the lifting of whole exhaust fan.
The special exhaust fan of high temperature papermaking of the present embodiment is applicable to hot and humid gas discharging, adopts without Volute Design, meets heatproof effective, and structure is simple, easy to operate etc.Be optimized slip ring 9 structure, adopt high strength support to be directly installed on motor mounting plate 10, inlets and putlets of ventilation 11 is arranged on best air inlet/outlet position, saves worm frame, and simple and reasonable, cost performance is high.
The foregoing is only better implementation example of the present utility model, be not limited to the utility model, all within the utility model spirit and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the special exhaust fan of high temperature papermaking, comprises motor mounting plate, is arranged in motor and the centrifugal impeller of motor mounting plate both sides, it is characterized in that: described motor mounting plate is provided with thermal shield towards the side of motor;
Sink and be close to motor mounting plate side and form the motorized cavity of peace in the middle part of thermal shield, filling with insulation material between all the other position and motor mounting plates, the thickness of described thermal-protective material is thickening gradually along thermal shield radial direction.
2. the special exhaust fan of high temperature papermaking as claimed in claim 1, it is characterized in that: the air inlet of described centrifugal impeller is equipped with slip ring, described slip ring is fixed on motor mounting plate by slip ring support.
3. the special exhaust fan of high temperature papermaking as claimed in claim 2, is characterized in that: the side of described motor mounting plate is provided with the impeller back-up ring slightly larger than centrifugal impeller diameter.
4. the special exhaust fan of high temperature papermaking as claimed in claim 3, is characterized in that: the side of described motor mounting plate is provided with the mounting plate stiffening plate be periphery outside thermal shield.
5. the special exhaust fan of high temperature papermaking as claimed in claim 4, is characterized in that: be provided with the cooling wind wheel be arranged on the spindle nose of motor in the middle part of described thermal shield.
6. the special exhaust fan of high temperature papermaking as claimed in claim 5, is characterized in that: the periphery of described cooling wind wheel is provided with protective housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719606.0U CN204942029U (en) | 2015-09-17 | 2015-09-17 | The special exhaust fan of a kind of high temperature papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719606.0U CN204942029U (en) | 2015-09-17 | 2015-09-17 | The special exhaust fan of a kind of high temperature papermaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942029U true CN204942029U (en) | 2016-01-06 |
Family
ID=55009466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520719606.0U Expired - Fee Related CN204942029U (en) | 2015-09-17 | 2015-09-17 | The special exhaust fan of a kind of high temperature papermaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942029U (en) |
-
2015
- 2015-09-17 CN CN201520719606.0U patent/CN204942029U/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 |
Granted publication date: 20160106 Termination date: 20170917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |