CN201858171U - Centrifugal aeration fan - Google Patents
Centrifugal aeration fan Download PDFInfo
- Publication number
- CN201858171U CN201858171U CN2010205806628U CN201020580662U CN201858171U CN 201858171 U CN201858171 U CN 201858171U CN 2010205806628 U CN2010205806628 U CN 2010205806628U CN 201020580662 U CN201020580662 U CN 201020580662U CN 201858171 U CN201858171 U CN 201858171U
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- China
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- motor
- blower fan
- spiral case
- pressure switch
- winding
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- Expired - Lifetime
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Abstract
A centrifugal aeration fan belongs to the technical field of rotary pumps for elastic fluids. A single-phase asynchronous motor of the centrifugal aeration fan is an outer rotor single-phase asynchronous motor; a central shaft seat of the motor is fixedly connected with a volute; a stator winding and a starting winding are assembled on the central shaft seat of the motor; a shaft is mounted in an inner hole of the central shaft seat of the motor by the aid of a bearing; an outer rotor is fixed to the end of the shaft; an impeller is a multi-blade impeller fixedly connected with the outer rotor; a capacitor is fixed to one side of the volute; a capacitor cover is fixedly connected with the volute; a pressure switch is fixedly connected with the capacitor cover; an air inlet of the volute is provided with an air inlet cover; the air inlet cover is connected with the volute by the aid of rivets; the starting winding is in parallel connection with the stator winding; and the pressure switch and a thermal protector are in series connection with the stator winding through a circuit. The centrifugal aeration fan is used for greenhouse equipment and stockbreeding facilities in facility agriculture.
Description
Technical field
The utility model relates to the rotary pump technical field that is used for elastic fluid, particularly a kind of industrialized agriculture greenhouse and herding livestock and poultry house of being used for, and air pressure realizes the effectively centrifugal aeration blower fan of insulation between bilayer film in order to keep.
Background technique
In agricultural and pastoral farming, greenhouse culture technique and livestock and poultry facility cultivation technology proportion in agricultural and livestock technology improves day by day.Ambient temperature is huge for greenhouse production and livestock and poultry cultivation influence, for the greenhouse can be remained in the relative constant scope with the interior temperature of livestock and poultry house, prevent that indoor heat from loosing winter outward, it is indoor to prevent that outdoor high temperature is transmitted to summer, the mutual conduction that the insulation measure comes the air lock internal and external temperature will be set, be reduced to holding temperature and the energy consumption that produces.Cover greenhouse or livestock and poultry house in order to be incubated the bilayer film material that the measure of taking usually is to use inflation, by inflation in the middle of the bilayer film material, make and maintain certain air pressure in the air chamber between the bilayer film, utilization is enclosed in the low heat conductivity of still air between the bilayer film can come effectively to completely cut off the inside and outside heat exchange in greenhouse, to guarantee the needs of plant growing growth and growth of animals or poultry condition.The inflation bilayer film of greenhouse and livestock and poultry house in use, generally all exist air in certain amount to leak, need in time to wherein replenishing air and keeping air pressure, normally adopt aeration blower fan to realize inflating operation, relatively more commonly used is centrifugal aeration blower fan.The centrifugal aeration blower fan of prior art uses motor as motive force, and by the rotation of driven by motor impeller, air stream blasts between the bilayer film through volute, uses the motor of smaller power just can realize certain air pressure is inflated and kept to duplicature.
Existing centrifugal aeration blower fan in use because fan blade is less, can not be exported stable air quantity and blast, provides stable air pressure to bilayer film; And because blower fan does not have the control set for adjusting of blast, make blower fan can not be by the people according to the air pressure in the bilayer film from main regulation air feed pressure, and, be the fan blade that runs up in the intake grill that volute of blower exposes, the user is easy to come to harm because of carelessness; Owing to being easy to make the electric current of motor, mechanical aspects or motor power reason increase; cause motor temperature overheated; when raising, temperature can cause motor to be burnt above the rated temperature value; how to make motor that motor is cut off the power supply automatically with the protection motor; be that motor can be switched on automatically and recovered running after temperature is reduced to uniform temperature; become the problem that the technician need solve, the problems referred to above have influenced the reliability of aeration blower fan work.
The model utility content
In order to solve the technological deficiency that prior art exists, the purpose of this utility model is to provide a kind of improved centrifugal aeration blower fan, and it can make blower fan that more constant blast is provided; Automatically cut off the electricity supply when temperature is elevated to certain limit during machine operation, when temperature is reduced to certain limit, resume work; The air output that can realize intake grill is adjustable, improves blower fan Security in use; And can start automatically and close blower fan according to setting blast.
To achieve these goals, the technical solution of the utility model is:
A kind of centrifugal aeration blower fan, comprise single-phase asynchronous motor, spiral case, impeller, electric capacity, the electric capacity cover, heat protector, pressure switch, wherein: this single-phase asynchronous motor is the external rotor single-phase asynchronous motor, the motor center axle bed is fixedlyed connected with spiral case, staor winding and startup winding are installed on the motor center axle bed, axle is installed in the motor center axle bed endoporus by bearing, external rotor is fixed in axle head, impeller is the multiple-airfoil type impeller, the multiple-airfoil type impeller is fixedlyed connected with external rotor, capacitor fixing is in spiral case one side, and the electric capacity cover is fixedlyed connected with spiral case, and pressure switch is fixedlyed connected with the electric capacity cover; The spiral case intake grill is provided with the air intake mouth mask, and the air intake mouth mask is connected with spiral case by rivet; Start winding and staor winding and be connected in parallel, pressure switch and heat protector are connected with stator winding circuit.
Heat protector is that break-off signal is that 130 ℃ ± 5 ℃, recovery temperature are 90 ℃ ± 15 ℃ heat protector, and heat protector is covered by insulating bush and is fixed on the staor winding.
Pressure switch is the adjustable pressure switch of pressure regulation range 50pa-500pa, pressure differential resetting minimum value 20pa.
Intake grill cover steel plate thickness is 1mm, and the surface has the black layer of moulding of spray.
Because after adopting such scheme, the utility model in use, blower fan has used the external rotor single-phase asynchronous motor, and draught fan impeller uses the multiple-airfoil type impeller, make external rotor electric machine to provide stable air quantity and blast by the multiple-airfoil type impeller with less rotation speed operation; At air inlet the air intake mouth mask is set, can stop that not only the operator touches the blade of running because of carelessness, guarantee operator's personal safety, also can rotate the size that the air intake mouth mask is regulated air inlet by the operator according to actual conditions easily simultaneously, artificially controlled the air quantity of blower fan; The temperature rise that heat protector comes the perception staor winding is installed on staor winding; when reaching specified value, cut off the electricity supply; when being reduced to specified value, temperature recovers to connect circuit automatically; simultaneously; the pressure switch of in staor winding power supply line, connecting; regulate the predefined value of setting pressure switch; by the air pressure in the pressure switch perception bilayer film; reach when presetting the high value and cut off the electricity supply; automatic turn-on power makes blower fan running inflation in the middle of bilayer film when the bilayer film internal air pressure is reduced to default low value, keeps the heat insulation effect of bilayer film to the greenhouse.This centrifugal aeration blower fan efficient height, noise are low, in light weight, compact structure, installation and maintenance are convenient.
Description of drawings
Fig. 1 is the centrifugal aeration blower fan plan view of the utility model, also is the A-A sectional view of Fig. 3;
Fig. 2 is the right elevation of the centrifugal aeration blower fan Fig. 1 of the utility model;
Fig. 3 is the left view of the centrifugal aeration blower fan Fig. 1 of the utility model;
Fig. 4 is the centrifugal aeration blower fan intake grill of a utility model catch plan view;
Fig. 5 is the centrifugal aeration blower fan intake grill of a utility model catch side view;
Fig. 6 is the centrifugal aeration blower fan circuit diagram of the utility model;
Fig. 7 is centrifugal aeration blower fan motor stator winding of the utility model and heat protector part partial schematic sectional view.
Label in the accompanying drawing:
1. single-phase asynchronous motor, 2. spiral case, 3. multiple-airfoil type impeller, 4. external rotor; 5. electric capacity, 6. electric capacity cover, 7. pressure switch, 8. malleation intake grill; 9. negative pressure intake grill, 10. spool, 11. bearings; 12. the air intake mouth mask, 13. rivets, 14. exhaust outlets; 15. intake grill, 16. staor winding, 17. leads; 18. the startup winding, 19. heat protectors, 20. motor center axle beds.
Embodiment
Be further described below in conjunction with the embodiment of Figure of description the centrifugal aeration blower fan of the utility model.
See Fig. 1---a kind of centrifugal aeration blower fan structure shown in Figure 7; it comprises single-phase asynchronous motor 1; spiral case 2; multiple-airfoil type impeller 3; electric capacity 5; electric capacity cover 6; heat protector 19; pressure switch 7 several main members; this single-phase asynchronous motor 1 is the external rotor single-phase asynchronous motor; motor center axle bed 20 is fixedlyed connected with spiral case 2; the positioning supporting part in spiral case 2 as staor winding 16 and multiple-airfoil type impeller 3; staor winding 16 and startup winding 18 are installed on the motor center axle bed 20; axle 10 is installed in motor center axle bed 20 endoporus by bearing 11; external rotor 4 is fixed in axle 10 ends; impeller is a multiple-airfoil type impeller 3; multiple-airfoil type impeller 3 is fixedlyed connected with external rotor 4, constitutes the main-body structure of blower fan.Electric capacity 5 is fixed on spiral case 2 one sides, and away from staor winding 16, the heat that produces when reducing staor winding 16 work has prolonged the service time of electric capacity 5 to the electric capacity influence in 5 working lifes, improves the reliability of blower fan work.Electric capacity cover 6 is fixedlyed connected with spiral case 2, electric capacity 5 is covered, pressure switch 7 is fixedlyed connected with electric capacity cover 6, and connect as one by electric capacity cover 6 and spiral case 2, pressure switch 7 is adjustable pressure switches of pressure regulation range 50pa-500pa, pressure differential resetting minimum value 20pa, can be by operator's setting pressure predefined value, pass through the air pressure between malleation intake grill 8 and the negative pressure intake grill 9 perception bilayer films during work, move and cut off or conducting motor power supply circuits, not only saved energy consumption, and prevented the excessive damage of blast bilayer film.The intake grill 15 of spiral case 2 is provided with air intake mouth mask 12, air intake mouth mask 12 is flat parts, steel plate thickness can be 1mm, the surface has the black layer of moulding of spray and comes corrosion protection, air intake mouth mask 12 1 ends are connected with spiral case 2 by rivet 13, and can rotate, area that can manual change's air inlet 15, come regulating and controlling blower fan air output, also can prevent that the operator from touching the danger that multiple-airfoil type impeller 3 takes place from intake grill 15 because of carelessness simultaneously.Starting winding 18 is connected in parallel with staor winding 16; pressure switch 7 and heat protector 19 are connected with staor winding 16 circuit; it is 130 ℃ ± 5 ℃ that heat protector 19 adopts break-off signal; recovery temperature is 90 ℃ ± 15 ℃ a heat protector; heat protector 19 is covered by insulating bush and is fixed on the staor winding 16; the temperature rise of perception staor winding 16 when blower fan is worked; cut off the electricity supply when reaching predetermined temperature value; avoid motor to be burnt; automatic turn-on power when temperature is reduced to the recovery temperature value is resumed work motor.
The centrifugal aeration blower fan of the utility model uses by in the air pressure xegregating unit at bilayer film cover, outer layer plastic film and the inner plastic film of industrialized agriculture greenhouse and herding facility livestock and poultry house, as the driving power source of inflation, also can in other field, use as the inflation power source.
Claims (4)
1. a centrifugal aeration blower fan comprises single-phase asynchronous motor, spiral case, impeller, electric capacity, electric capacity cover, heat protector, pressure switch, it is characterized in that:
This single-phase asynchronous motor is the external rotor single-phase asynchronous motor, the motor center axle bed is fixedlyed connected with spiral case, staor winding and startup winding are installed on the motor center axle bed, axle is installed in the motor center axle bed endoporus by bearing, and external rotor is fixed in axle head, and impeller is the multiple-airfoil type impeller, the multiple-airfoil type impeller is fixedlyed connected with external rotor, capacitor fixing is in spiral case one side, and the electric capacity cover is fixedlyed connected with spiral case, and pressure switch is fixedlyed connected with the electric capacity cover;
The spiral case intake grill is provided with the air intake mouth mask, and the air intake mouth mask is connected with spiral case by rivet;
Start winding and staor winding and be connected in parallel, pressure switch and heat protector are connected with stator winding circuit.
2. centrifugal aeration blower fan according to claim 1 is characterized in that: heat protector is that break-off signal is that 130 ℃ ± 5 ℃, recovery temperature are 90 ℃ ± 15 ℃ heat protector, and heat protector is covered by insulating bush and is fixed on the staor winding.
3. centrifugal aeration blower fan according to claim 1 is characterized in that: pressure switch is the adjustable pressure switch of pressure regulation range 50pa-500pa, pressure differential resetting minimum value 20pa.
4. centrifugal aeration blower fan according to claim 1 is characterized in that: intake grill cover steel plate thickness is 1mm, and the surface has the black layer of moulding of spray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205806628U CN201858171U (en) | 2010-10-28 | 2010-10-28 | Centrifugal aeration fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205806628U CN201858171U (en) | 2010-10-28 | 2010-10-28 | Centrifugal aeration fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858171U true CN201858171U (en) | 2011-06-08 |
Family
ID=44103978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205806628U Expired - Lifetime CN201858171U (en) | 2010-10-28 | 2010-10-28 | Centrifugal aeration fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858171U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016150127A1 (en) * | 2015-03-25 | 2016-09-29 | 中山大洋电机制造有限公司 | Fuel gas fan |
| PL126556U1 (en) * | 2017-08-28 | 2019-03-11 | Domer Sierecki Spółka Jawna | Blower/fan for air blow-in, in particular for central heating boilers |
-
2010
- 2010-10-28 CN CN2010205806628U patent/CN201858171U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016150127A1 (en) * | 2015-03-25 | 2016-09-29 | 中山大洋电机制造有限公司 | Fuel gas fan |
| PL126556U1 (en) * | 2017-08-28 | 2019-03-11 | Domer Sierecki Spółka Jawna | Blower/fan for air blow-in, in particular for central heating boilers |
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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 |
Granted publication date: 20110608 |
|
| CX01 | Expiry of patent term |