CN213450895U

CN213450895U - Fan of big amount of wind

Info

Publication number: CN213450895U
Application number: CN202021650680.9U
Authority: CN
Inventors: 林为渺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-06-15
Anticipated expiration: 2030-08-11

Abstract

A large-air-volume fan comprises a volute, a wind wheel, a motor and a bracket, wherein an accommodating cavity is arranged in the volute, the accommodating cavity is internally provided with a motor and a wind wheel which can movably rotate, the accommodating cavity is provided with an air outlet and two symmetrical air inlets which are communicated with the accommodating cavity, the bracket is detachably and fixedly arranged on one of the air inlets, the wind wheel, the motor and the bracket are sequentially connected, the diameter of the wind wheel in the volute is the same as the distance from the center of the wind wheel to the outer wall of the air outlet side of the volute, an air outlet channel for communicating the air inlet and the air outlet is arranged between the volute and the wind wheel, when the air outlet of the volute is arranged on the left side of the wind wheel, the volute takes the wind wheel as the center to make two vertical and horizontal virtual tangent lines to virtually cut the air outlet channel into four parts, and the sum of the area of the upper right part of the air outlet channel and the area of the lower right part of the air outlet channel is equal to the area of the lower left part of the air outlet channel.

Description

Fan of big amount of wind

Technical Field

The utility model relates to an air supply equipment field, concretely relates to fan of big amount of wind.

Background

The existing fan usually drives an impeller to rotate through a motor arranged in a shell, so that external airflow is sucked into an opening at one side of the fan and then sent out through an opening at the other side of the fan, and the airflow is guided and sent. However, fans are also needed in some industrial production, and because the area of a factory is large, the requirement for the air delivery volume of the fans is large, and the conventional delivery fans cannot achieve delivery of large air volume.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a fan of big amount of wind:

Preferably, the numerical ratio of the diameter of the wind wheel, the height of the wind wheel and the height of the volute is as follows: height of the wind wheel: volute height 25-26: 14-15: 11-12. The wind power transmission efficiency is optimized through the arrangement mode, and the air quantity is obviously improved under the same power.

The motor is provided with an annular flange which is fixed with the motor and extends in the radial direction, the annular flange is detachably and fixedly installed on one side, close to the wind wheel, of the support, the power output end of the wind wheel is connected with the motor, and the diameter of the wind wheel is smaller than that of any air inlet. For the installation of the fan, the support is fixed on the outer side of the lower plate of the volute through screws, the motor is fixed on the support through screws, the wind wheel is fixed on the motor through nuts, and the wind inlet ring is fixed on the outer side of the upper plate of the volute through screws, so that the assembly of the volute system can be completed, and the fan is convenient and fast. Under the complete fan state, the two air inlet directions of the product can realize the disassembly of the wind wheel and the motor, the operation is convenient and fast, and the device has great significance in actual maintenance.

Preferably, the wind power generator further comprises an air inlet ring arranged at the other air inlet, and the inner diameter of the air inlet ring is smaller than the outer diameter of the wind wheel. The air inlet ring is arranged, so that the air inlet volume of the air inlet is increased, the structural stability of the air inlet is reinforced, the air inlet is prevented from being deformed by wind force, and in addition, the wind wheel can be limited, so that the wind wheel is prevented from being separated from the accommodating cavity.

Preferably, the air outlet is provided with a flange, and the flange is used for communicating the outside and fixing the fan. For the mounting means on the current fixed mounting wall, this patent is fixed through flange joint to convenient to use person directly dismantles the maintenance to the fan from two air intake departments.

Preferably, the support is disc structure, the support includes interior ring portion, outer ring portion and connects connecting portion between them, the detachable fixed mounting of interior ring portion and motor, the detachable fixed mounting of outer ring portion is on the air intake.

Preferably, the detachable fixed mounting modes are all screw or bolt connection.

Preferably, the volute comprises a surrounding plate and two side plates which are respectively positioned at two sides of the surrounding plate, the surrounding plate and the two side plates surround to form the accommodating cavity, and the two side plates are respectively provided with a single air inlet.

Preferably, bounding wall both sides edge extends has the flange portion that corresponds the curb plate, be equipped with two mounting brackets that correspond the curb plate in holding the cavity, the mounting bracket includes solid fixed ring and a plurality of mounting bar of integral type, gu fixed ring's internal diameter is more than or equal to the air intake diameter, gu fixed ring corresponds and threaded mounting is in the curb plate inner wall with the air intake is concentric, and is a plurality of the mounting bar is solid fixed ring relatively and is even radial distribution, and is a plurality of all be equipped with the screw hole on the mounting bar, threaded hole is equipped with the screw rather than corresponding, the screw is through passing through-hole and the threaded fixing that curb plate and flange portion were equipped with. Because the volute needs to bear larger wind impact frequently, corresponding deformation is easy to occur, even the phenomenon that the coaming and the side plate are separated from each other is caused, and further serious accidents such as air leakage and the like are caused. The fixing ring of the mounting frame is fixedly arranged on the inner side of the air inlet, so that the air inlet is correspondingly reinforced, the impact of wind power on the air inlet can be effectively resisted, and the deformation of the opening part of the air inlet is avoided; the fixing ring is integrally arranged with the mounting strips, so that the deformation phenomenon that the opposite side edges of the whole opening part of the air inlet are concave or convex can be effectively avoided; the screw passes curb plate, flange portion, mounting bar to make three fixed connection together, improved the overall structure stability of spiral case, curb plate and mounting bar produce the stiction of hugging closely to flange portion in addition, can effectively avoid again because the too big phenomenon of bounding wall and the mutual separation of curb plate that leads to of wind-force.

The utility model discloses following beneficial effect has: the wind power transmission efficiency is optimized through the arrangement mode, and the air quantity is obviously improved under the same power.

Drawings

Fig. 1 is a schematic structural view of embodiment 1.

Fig. 2 is an exploded view of example 1.

Fig. 3 is a disassembly flow chart 1 of embodiment 1.

Fig. 4 is a disassembly flow chart 2 of embodiment 1.

Fig. 5 is an assembly view of the volute of embodiment 1.

Fig. 6 is an internal structure view 1 of embodiment 1.

FIG. 7 is an internal structure view of example 1, FIG. 2.

Fig. 8 is a schematic view of embodiment 1.

FIG. 9 is a structural view of a holder according to embodiment 1.

Fig. 10 is an internal structural view of embodiment 2.

1. A volute; 2. a wind wheel; 3. a motor; 4. a support; 41. an inner ring portion; 42. an outer ring portion; 43. a connecting portion; 5. an air inlet ring; 6. an air inlet; 7. an annular flange; 8. enclosing plates; 9. a side plate; 10. a flange; 11. A flange portion; 12. a mounting frame; 13. a fixing ring; 14. and (7) mounting the bar.

Detailed Description

The present invention will be further described with reference to FIGS. 1-10 and examples 1-2.

Example 1: a large-air-volume fan comprises a volute 1, a wind wheel 2, a motor 3 support 4 and an air inlet ring 5. The volute 1 comprises a surrounding plate 8 and two side plates 9 which are respectively positioned at two sides of the surrounding plate 8, the surrounding plate 8 and the two side plates 9 are surrounded to form the accommodating cavity, and the two side plates 9 are respectively provided with a single air inlet 6.

The spiral case is characterized in that a containing cavity is arranged in the spiral case 1, a motor 3 and a wind wheel 2 capable of movably rotating are arranged in the containing cavity, and the containing cavity is provided with an air outlet and two symmetrical air inlets 6 which are communicated with the containing cavity. The air outlet is provided with a flange 10, and the flange 10 is used for communicating the outside and fixing the fan. For the mounting means on the current fixed mounting wall, this patent is connected fixedly through flange 10 to convenient to use person directly dismantles the maintenance to the fan from two air intakes 6 departments.

The motor 3 support 4 is of a disc structure, the motor 3 support 4 comprises an inner ring portion 41, an outer ring portion 42 and a connecting portion 43 for connecting the inner ring portion and the outer ring portion, the inner ring portion 41 and the motor 3 are fixed through screws, and the outer ring portion 42 is fixed on one air inlet 6 through screws. The motor 3 is provided with a radially extending annular flange 7 fixed with the motor 3, and the annular flange 7 is fixed on one side of the bracket 4 of the motor 3 close to the wind wheel 2 through screws. The air inlet ring 5 is arranged on the outer wall of the other air inlet 6, and the inner diameter of the air inlet ring 5 is smaller than the outer diameter of the wind wheel 2. The air inlet ring 5 improves the air inlet amount of the air inlet 6, strengthens the structural stability of the air inlet 6, avoids the air inlet 6 from deforming by wind force, and can also play a limiting role in the wind wheel 2 so as to prevent the wind wheel 2 from separating from the accommodating cavity. The power output end that wind wheel 2 has is connected with motor 3, the diameter of wind wheel 2 is less than the diameter of arbitrary air intake 6.

This product all can realize the dismantlement to motor 3 and wind wheel 2 through two air intakes 6:

as shown in fig. 3, the first disassembly method: the screw of support 4 is taken down earlier, then wind wheel 2 and motor 3 can be taken out from 1 curb plate 9 of spiral case together with support 4, and the nut that will fix wind wheel 2 this moment takes down again, then wind wheel 2 just can take down alone, takes down the screw of fixed motor 3 this moment, then motor 3 just can take down alone to the realization is to the dismantlement of motor 3 and wind wheel 2.

As shown in fig. 4, the second detachment mode: the screw that will fix air inlet circle 5 at this moment takes off, then air inlet circle 5 can follow another curb plate 9 of spiral case 1 and take off, and the nut that will fix wind wheel 2 this moment again takes off, because the internal diameter of air intake 6 is greater than the external diameter of wind wheel 2, and wind wheel 2 just can take off alone, takes off the screw of fixed motor 3 this moment again, then motor 3 just can take off alone. The object of the present volute 1 structure is therefore to make it possible to remove both the rotor 2 and the motor 3 on two different side plates 9 of the volute 1.

The diameter of wind wheel 2 is the same with the distance that wind wheel 2 center reaches spiral case 1 air outlet side outer wall in spiral case 1, be equipped with the air-out passageway of intercommunication air intake 6 and air outlet between spiral case 1 to the wind wheel 2, when the air outlet of spiral case 1 was located wind wheel 2 left side setting, spiral case 1 used wind wheel 2 as the center to make two perpendicular and horizontal virtual tangent lines and will air-out passageway virtual cutting four bibliographic categories divide into, the upper right part area of air-out passageway and the lower right part area sum of right part of air-out passageway equals the lower left part area of air-out passageway. The wind power transmission efficiency is optimized through the arrangement mode, and the air quantity is obviously improved under the same power. As shown in fig. 6 to 7, a represents the diameter of the wind wheel 2 in the volute 1, B represents the distance from the center of the wind wheel 2 to the outer wall of the volute 1 on the wind outlet side, C represents the height of the impeller, and D represents the height of the volute 1. The height D of the volute 1 is 140-150mm, the diameter A of the wind wheel 2 is 255-260mm, and the height C is 115-120 mm. The numerical value B of the volute 1 is equal to the numerical value of A, and the volute 1 takes the wind wheel 2 as the center to make two vertical and transverse virtual tangent lines to virtually cut the air outlet channel into four parts. As shown in fig. 8, where e represents an area of a right upper shadow portion of the scroll casing 1, i.e., an area of a right upper portion of the outlet duct, f represents an area of a right lower shadow portion, i.e., an area of a right lower portion of the outlet duct, and g represents an area of a left lower shadow portion, i.e., an area of a left upper portion of the outlet duct. In this embodiment, g is f + e, which follows a fibonacci number series, with each term being equal to the sum of the first two terms.

In the practical operation of the embodiment, the air outlet of the volute 1 is sealed, the wind wheel 2 rotates, when the rotating speed of the wind wheel 2 is 1400r/min, the static pressure of the volute 1 measured according to the national standard GB-17713 of the range hood is larger than 550Pa, and the partial pressure of the wind in the specified air quantity is larger than 400 Pa. The wind power transmission efficiency is optimized through the arrangement mode, and the air quantity is obviously improved under the same power.

Example 2: a large-air-volume fan comprises a volute 1, a wind wheel 2, a motor 3 support 4 and an air inlet ring 5. The volute 1 comprises a surrounding plate 8 and two side plates 9 which are respectively positioned at two sides of the surrounding plate 8, the surrounding plate 8 and the two side plates 9 are surrounded to form the accommodating cavity, and the two side plates 9 are respectively provided with a single air inlet 6.

8 both sides edges of bounding wall extend has the flange portion 11 that corresponds curb plate 9, be equipped with two mounting brackets 12 that correspond curb plate 9 in the holding cavity, mounting bracket 12 includes solid fixed ring 13 and a plurality of mounting bar 14 of integral type, gu fixed ring 13's internal diameter is more than or equal to 6 diameters of air intake, gu fixed ring 13 corresponds and threaded mounting in the curb plate 9 inner wall with 6 concentricity of air intake, and is a plurality of the solid fixed ring 13 of mounting bar 14 relatively is even radial radiation and distributes, and is a plurality of all be equipped with the screw hole on the mounting bar 14, threaded hole is equipped with the screw rather than corresponding, the screw is through passing through-hole and threaded mounting that curb plate 9 and flange portion 11 were equipped with on 14. Because the volute casing 1 needs to bear larger wind impact frequently, corresponding deformation is easy to occur, even the phenomenon that the coaming 8 and the side plate 9 are separated from each other is caused, and further serious accidents such as air leakage and the like are caused. The fixing ring 13 of the mounting frame 12 is fixedly mounted on the inner side of the air inlet 6, so that the air inlet 6 is correspondingly reinforced, the impact of wind power on the air inlet 6 can be effectively resisted, and the deformation of the mouth of the air inlet 6 is avoided; the fixing ring 13 is integrally arranged with the mounting strips 14, so that the deformation phenomenon that the opposite side edges of the whole opening part of the air inlet 6 are concave or convex can be effectively avoided; the screw passes curb plate 9, flange portion 11, mounting bar 14 to make the three fixed connection together, improved the overall structure stability of spiral case 1, curb plate 9 and mounting bar 14 produce the stiction of hugging closely to flange portion 11 in addition, can effectively avoid again because the too big phenomenon of bounding wall 8 and the mutual separation of curb plate 9 that leads to of wind-force.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a fan of big amount of wind, includes spiral case (1), wind wheel (2), motor (3), support (4), its characterized in that: the wind wheel type air conditioner is characterized in that a containing cavity is arranged in the volute (1), a motor (3) and a wind wheel (2) capable of rotating movably are arranged in the containing cavity, the containing cavity is provided with an air outlet and two symmetrical air inlets (6) which are all communicated with the containing cavity, the support (4) is detachably and fixedly arranged on one of the air inlets (6), the wind wheel (2), the motor (3) and the support (4) are sequentially connected, the diameter of the wind wheel (2) in the volute (1) is the same as the distance from the center of the wind wheel (2) to the outer wall of the air outlet side of the volute (1), an air outlet channel communicated with the air inlet (6) and the air outlet is arranged between the volute (1) and the wind wheel (2), when the air outlet of the volute (1) is arranged on the left side of the wind wheel (2), the volute (1) uses the wind wheel (2) as the center to make, and the sum of the area of the upper right part of the air outlet channel and the area of the lower right part of the air outlet channel is equal to the area of the lower left part of the air outlet channel.

2. A high-volume wind turbine as claimed in claim 1, wherein: the numerical ratio of the diameter of the wind wheel (2), the height of the wind wheel (2) and the height of the volute (1) is as follows: height of the wind wheel (2): the height of the volute (1) is 25-26: 14-15: 11-12.

3. A high-volume wind turbine as claimed in claim 1, wherein: the motor (3) is provided with an annular flange (7) which is fixed with the motor and extends radially, the annular flange (7) can be detachably and fixedly installed on one side, close to the wind wheel (2), of the support (4), the power output end of the wind wheel (2) is connected with the motor (3), and the diameter of the wind wheel (2) is smaller than that of any air inlet (6).

4. A high air volume fan as claimed in claim 3, wherein: the wind wheel is characterized by further comprising a wind inlet ring (5) arranged at the other wind inlet (6), and the inner diameter of the wind inlet ring (5) is smaller than the outer diameter of the wind wheel (2).

5. A high air volume fan as claimed in claim 3, wherein: the air outlet is provided with a flange (10), and the flange (10) is used for communicating the outside and fixing the fan.

6. A high air volume fan as claimed in claim 3, wherein: support (4) are the disc structure, support (4) include interior ring portion (41), outer ring portion (42) and connect connecting portion (43) of both, detachable fixed mounting of interior ring portion (41) and motor (3), detachable fixed mounting of outer ring portion (42) is on air intake (6).

7. A high air volume fan as claimed in claim 3, wherein: the detachable fixed mounting mode is screw or bolt connection.

8. A high air volume fan as claimed in claim 3, wherein: the volute (1) comprises a surrounding plate (8) and two side plates (9) which are respectively located on two sides of the surrounding plate (8), the surrounding plate (8) and the two side plates (9) are surrounded to form the accommodating cavity, and the two side plates (9) are respectively provided with a single air inlet (6).

9. A high-volume wind turbine as claimed in claim 8, wherein: coaming (8) both sides edge extends has flange portion (11) that corresponds curb plate (9), be equipped with two mounting bracket (12) that correspond curb plate (9) in the holding cavity, mounting bracket (12) are including solid fixed ring (13) and a plurality of mounting bar (14) of integral type, the internal diameter of solid fixed ring (13) is more than or equal to air intake (6) diameter, gu fixed ring (13) correspond with air intake (6) concentricity and threaded mounting in curb plate (9) inner wall, it is a plurality of mounting bar (14) solid fixed ring (13) relatively are even radial radiation and distribute, a plurality of all be equipped with the screw hole on mounting bar (14), threaded hole is equipped with the screw rather than corresponding, the screw is fixed in on mounting bar (14) through the through-hole and the screw thread that pass curb plate (9) and flange portion (11) and be equipped with.