CN208778294U - Efficient low-loss blower - Google Patents
Efficient low-loss blower Download PDFInfo
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- CN208778294U CN208778294U CN201821347177.9U CN201821347177U CN208778294U CN 208778294 U CN208778294 U CN 208778294U CN 201821347177 U CN201821347177 U CN 201821347177U CN 208778294 U CN208778294 U CN 208778294U
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- support plate
- blower
- impeller
- blower housing
- loss
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Abstract
A kind of efficient low-loss blower, the Blower Housing for being equipped with air inlet and air outlet including one, an impeller and motor are provided in the Blower Housing, the rear end of Blower Housing is arranged in the motor, the output axis connection of the impeller and motor, the blower housing is spiral case, the air outlet of the Blower Housing is expanded to volute tongue side, the angle [alpha] of the air outlet expansion is more than or equal to 8.5 °, and it is less than or equal to 9.8 °, the relationship between the distance between the bottom of the volute tongue and impeller L and the diameter R2 of impeller 2 is 0.04-0.07R2.The utility model has the advantages that smaller, more efficient, energy, which is lost, to be fully utilized.
Description
Technical field
The utility model relates to blower field, especially a kind of efficient low-loss blower.
Background technique
Blower is the machinery for conveying gas, and in terms of energy viewpoint, it is that the mechanical energy of prime mover is changed into gas
A kind of machinery of energy, and blower is the habitual abbreviation to gas compression and gas conveying machinery.Blower is according to the fortune of air-flow
Dynamic difference, and can be divided into centrifugal blower and axial flow blower, the working principle of centrifugal fan be, when impeller high speed rotation produces
Raw centrifugal force makes fluid obtain energy, i.e., fluid is by the way that after impeller, pressure energy and kinetic energy are all improved, so as to be conveyed
To eminence or distant place.For example, Chinese patent literature CN 100552236 discloses a kind of centrifugal fan, with spiral case and
Impeller, spiral case are equipped with air inlet and air outlet, and the front side or rear side of the air outlet is equipped with adjustable local exit air-flow
The front side and rear side of constant-current stabilizer or the air outlet are equipped with the constant-current stabilizer of adjustable local exit air-flow, also, institute
State the front side or rear side setting that constant-current stabilizer is close to the air outlet；The constant-current stabilizer is individual components or is and the spiral case
Make integral integral piece；The effective width W of the constant-current stabilizer meets: W 1+2mm≤W≤W 1+4mm, and W 1 is in formula
At a distance from the spiral case cover board to the impeller ipsilateral with the constant-current stabilizer.
Above-mentioned this centrifugal fan in the prior art reduces wind pressure although can reduce noise, go out
Speed at mouthful is still very big, can reach 30m/s sometimes, and corresponding kinetic energy is also very big, if the centrifugal blower is used for pull-out type
Ventilation, then this part kinetic energy just has lost as unhelpful function, and thus the loss of blower is just bigger, and efficiency is also lower.
Utility model content
In order to overcome the above problem, the utility model provides to society and a kind of smaller, more efficient, energy energy is lost
Access the efficient low-loss blower adequately utilized.
The technical solution of the utility model is: providing a kind of efficient low-loss blower, including one is equipped with air inlet and outlet air
Mouthful Blower Housing, be provided with an impeller and motor in the Blower Housing, the rear end of Blower Housing, institute is arranged in the motor
The output axis connection of impeller and motor is stated, the Blower Housing is spiral case, and the air outlet of the Blower Housing expands to volute tongue side
, the angle [alpha] of air outlet expansion is and to be less than or equal to 9.8 ° more than or equal to 8.5 °, the bottom of the volute tongue and impeller it
Between distance L and impeller 2 diameter R2 between relationship be 0.04-0.07 R2.
As the improvement to the utility model, one is equipped in the end face opposite with air inlet of the Blower Housing and reinforces knot
Structure, the ruggedized construction include lower concave part, are uniformly arranged in the inside of the lower concave part there are four T-type reinforcing rib, described recessed
Portion is rounded, and is overlapped with the center of circle of the end face at place.
As the improvement to the utility model, four T-type reinforcing ribs are separately positioned on 3 o'clock sides of the lower concave part
To, 6 o'clock direction, 9 o'clock direction and 12 o'clock direction.
As the improvement to the utility model, the impeller is separated by pre- including the first support plate, with first support plate
Set a distance and corresponding the second identical support plate, and be arranged in several between first support plate and the second support plate
Blade, several blades according to preset spacing arrangement between first support plate and the second support plate, the blade
It is vertical with first support plate and the second support plate.
As the improvement to the utility model, the close one side in the air inlet of second support plate, described second
The center of support plate is equipped with air port, and second support plate includes plate body and extended from the air port edge of plate body to air inlet direction
Air dam, chamfered connection between the air dam and the plate body, the angle of the chamfering is 45 °.
As the improvement to the utility model, the material of the Blower Housing and wind wheel is glass reinforced plastic.
It further include the first connector as the improvement to the utility model, the impeller is fixed on by the first connector
In the Blower Housing.
The utility model is provided in the Blower Housing due to including a Blower Housing for being equipped with air inlet and air outlet
The rear end of Blower Housing, the output axis connection of the impeller and motor, the blower is arranged in one impeller and motor, the motor
Shell is spiral case, and the air outlet of the Blower Housing is expanded to volute tongue side, the angle [alpha] of the air outlet expansion be more than or equal to
8.5 °, and it is less than or equal to 9.8 °, the relationship between the distance between the bottom of the volute tongue and impeller L and the diameter R2 of impeller 2
For 0.04-0.07 R2.In the utility model, when blower work, the rotation of motor driven impeller, to suck gas to wind
In casing body, the centrifugal force that when impeller high speed rotation generates makes fluid obtain energy, i.e. fluid by after impeller, pressure energy and
Kinetic energy is all improved, and is exported then to the air outlet of Blower Housing, since the air outlet is expanded to volute tongue side, is made
When stream of bringing about the desired sensation passes through air outlet, due to the continuous expansion of aisle spare, a part of kinetic energy is made to become static energy, to improve blower
Device static pressure and efficiency, reduce the kinetic pressure losses at air outlet, so just can be reduced the loss of energy, so that the energy of blower
Amount maximizes the use, and improves the efficiency of blower；Therefore, the utility model have be lost it is smaller, more efficient,
The advantages of energy can be fully utilized.
Detailed description of the invention
Fig. 1 is the planar structure schematic diagram of the spiral case in the utility model.
Fig. 2 is a kind of dimensional decomposition structure diagram of embodiment of the blower of the utility model.
Fig. 3 is the schematic perspective view of impeller.
Fig. 4 is the planar structure schematic diagram after Fig. 2 complete combination.
Specific embodiment
In the description of the present invention, it should be understood that "center" in term, "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second "
It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection ", " connected " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to dismantling connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, be also possible to indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " several "
It is meant that two or more.
Referring to Figure 1 to Fig. 4, that Fig. 1 to Fig. 4 discloses is a kind of embodiment party of the efficient low-loss blower of the utility model
Formula, a kind of efficient low-loss blower, the Blower Housing 1 for being equipped with air inlet 11 and air outlet 12 including one, in the utility model,
The Blower Housing 1 be it is detachable, the Blower Housing 1 includes the first housing parts 15 and the second housing parts 16, described the
One housing parts 15 and corresponding coincide of second part of shell 16 constitute 1 entirety of Blower Housing, in the utility model, it is preferred that the wind
Casing body 1 is spiral case；It is equipped with the impeller accommodating cavity for accommodating impeller 2 in the Blower Housing 1, is accommodated in the impeller
It is intracavitary to be provided with an impeller 2, in the utility model, it is preferred that the impeller 2 include the first support plate 21, with described first
21 predetermined distance of fagging and corresponding the second identical support plate 22, and be arranged in first support plate 21 and second
Several blades 220 between support plate 22, several blades 220 are according to preset spacing arrangement in first support plate 21
And second between support plate 22, the blade 220 and first support plate 21 and the second support plate 22 are vertical.The wind
The rear end of casing body 1 is equipped with motor (invisible in figure), and the output axis connection of the impeller 2 and motor, the motor is for driving
The rotation of movable vane wheel 2, to suck in gas to Blower Housing 1；In the utility model, the air outlet 12 of the Blower Housing 1
It is expanded to 20 side of volute tongue, the angle [alpha] that the air outlet 12 is expanded is and to be less than or equal to 9.8 ° more than or equal to 8.5 °, the snail
Relationship between the distance between the bottom of tongue 20 and impeller 2 L and the diameter R2 of impeller 2 is 0.04-0.07R2.The utility model
In, when blower work, the rotation of motor driven impeller 2, to suck in gas to Blower Housing 1, the impeller 2 revolves at a high speed
The centrifugal force generated when turning makes fluid obtain energy, i.e., after fluid passes through impeller 2, pressure energy and kinetic energy are all improved, then to
The air outlet 12 of Blower Housing 1 exports, since the air outlet 12 is expanded to 20 side of volute tongue, so that air-flow passes through outlet air
When mouthfuls 12, due to the continuous expansion of aisle spare, a part of kinetic energy is made to become static energy, thus improve blower device static pressure and
Efficiency reduces the kinetic pressure losses at air outlet, so just can be reduced the loss of energy, so that the energy of blower is maximized
Utilization, improve the efficiency of blower；And the restriction of the distance between the impeller 2 and volute tongue 20, the utility model relative to
It is that the impeller 2 is close to volute tongue 20 for the prior art, the distance between described more than 2 volute tongue 20 of impeller is smaller, so just can
Increase the tonicity of helical airflow channel in Blower Housing 1, gas flows more smoothly, avoids portion gas in blower
It generates and circulates in shell 1, not only reduce the generation of noise, while being conducive to increase air quantity, improve the efficiency of blower.
In the utility model, it is preferred that be equipped with one in the end face opposite with air inlet 11 of the Blower Housing 1 and reinforce knot
Structure 4.In the utility model, it is preferred that the ruggedized construction 4 includes lower concave part 41, is uniformly set in the inside of the lower concave part 41
T-type reinforcing rib 42 there are four setting, the lower concave part 41 is rounded, and is overlapped with the center of circle of the end face where it；The utility model
In, it is preferred that the diameter R1 of the lower concave part 41 is equal with the diameter R2 of the impeller 2.In the utility model, the reinforcing knot
The effect of structure 4 is to play booster action to the Blower Housing 1；In addition, when blower work, in the blower of the prior art, pressure
Gas quickly flowing and blower inner wall collision friction in Blower Housing 1, especially for the corresponding end face of air inlet, with
The collision of blower inner wall is to vibrate, and the presence of the ruggedized construction 4 on first housing parts 15 in the utility model,
The weight of Blower Housing 1 can be aggravated, the stability of the end face where ruggedized construction 4 is reinforced, gas is reduced and is touched with blower inner wall
The vibration to occur is hit, so that reducing leads to making an uproar for the first housing parts 15 vibration generation because of the frictional impact of pressed gas
Sound achievees the purpose that noise reduction.
In the utility model, it is preferred that the close one side in the air inlet 11 of second support plate 22, described second
The center of support plate 22 is equipped with air port 221, and second support plate 22 includes plate body 222 and 221 side of air port by plate body 222
Along to air inlet direction extend air dam 223, chamfered connection between the air dam 223 and the plate body 222, it is described fall
The angle at angle is designed in this way for 45 ° to be advantageous in that, when wind enters in Blower Housing 1, is connect with second support plate 22
Touching, can achieve and lead wind action, the flow for being conducive to the flow velocity for improving gas and increasing gas, and noise is also lower.
In the utility model, it is preferred that four T-type reinforcing ribs 42 are separately positioned on 3 o'clock of the lower concave part 41
Direction, 6 o'clock direction, 9 o'clock direction and 12 o'clock direction.So being uniformly distributed setting is advantageous in that, can tie to reinforcing
Face where structure 4 plays the role of uniformly reinforcing, while noise reduction effect also can be more preferable.
In the utility model, it is preferred that the material of the Blower Housing 1 and wind wheel 2 is glass reinforced plastic；Glass reinforced plastic has quality
Gently, hard, performance is stablized, high mechanical strength and corrosion resistant advantage.
In the utility model, it is preferred that further include the first connector 6, the impeller 2 is fixed on by the first connector 6
In the Blower Housing 1.
In the utility model, it is preferred that further include collector 71 and the second connector 72, the collector 71 passes through described
Second connector 72 is arranged before the impeller 2, and the collector 71 can equably be full of the entrance section of impeller, and gas
It is the smallest for flowing through drag losses when collector 71, and in the utility model, the collector 71 advantageously reduces noise, is increased
Gas flow.
Claims (7)
1. a kind of efficient low-loss blower, it is characterised in that: the Fan casing for being equipped with air inlet (11) and air outlet (12) including one
Body (1), the Blower Housing (1) is interior to be provided with an impeller (2) and motor, and the motor is arranged in the rear end of Blower Housing (1),
The output axis connection of the impeller (2) and motor, the Blower Housing (1) is spiral case, the air outlet of the Blower Housing (1)
(12) it is expanded to volute tongue (20) side, the angle [alpha] of the air outlet (12) expansion is and to be less than or equal to more than or equal to 8.5 °
9.8 °, the relationship of the distance between the bottom of the volute tongue (20) and impeller (2) between L and the diameter R2 of impeller (2) is 0.04-
0.07R2。
2. efficient low-loss blower according to claim 1, it is characterised in that: in the Blower Housing (1) and air inlet
The opposite end face of mouth (11) is equipped with a ruggedized construction (4), and the ruggedized construction (4) includes lower concave part (41), in the lower concave part
(41) inside is uniformly arranged there are four T-type reinforcing rib (42), and the lower concave part (41) is rounded, and the circle with the end face at place
The heart is overlapped.
3. efficient low-loss blower according to claim 2, it is characterised in that: four T-type reinforcing ribs (42) are respectively
Be arranged the lower concave part (41) 3 o'clock direction, 6 o'clock direction, 9 o'clock direction and 12 o'clock direction.
4. efficient low-loss blower according to claim 1,2 or 3, it is characterised in that: the impeller (2) includes first
Fagging (21), with the first support plate (21) predetermined distance and corresponding identical the second support plate (22), and setting
Several blades (220) between first support plate (21) and the second support plate (22), several blades (220) according to
Preset spacing arrangement is between first support plate (21) and the second support plate (22), the blade (220) and described the
One support plate (21) and the second support plate (22) are vertical.
5. efficient low-loss blower according to claim 4, it is characterised in that: second support plate (22) is close in institute
The one side of air inlet (11) is stated, the center of second support plate (22) is equipped with air port (221), the second support plate (22) packet
Rubbing board body (222) and the air dam (223) extended from air port (221) edge of plate body (222) to air inlet direction, the wind-guiding
Chamfered connection between portion (223) and the plate body (222), the angle of the chamfering are 45 °.
6. efficient low-loss blower according to claim 1,2 or 3, it is characterised in that: the Blower Housing (1) and wind wheel
(2) material is glass reinforced plastic.
7. efficient low-loss blower according to claim 1,2 or 3, it is characterised in that: it further include the first connector (6),
The impeller (2) is fixed in the Blower Housing (1) by the first connector (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347177.9U CN208778294U (en) | 2018-08-20 | 2018-08-20 | Efficient low-loss blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347177.9U CN208778294U (en) | 2018-08-20 | 2018-08-20 | Efficient low-loss blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778294U true CN208778294U (en) | 2019-04-23 |
Family
ID=66157654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821347177.9U Active CN208778294U (en) | 2018-08-20 | 2018-08-20 | Efficient low-loss blower |
Country Status (1)
| Country | Link |
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| CN (1) | CN208778294U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388326A (en) * | 2019-06-12 | 2019-10-29 | 索奥斯(广东)玻璃技术股份有限公司 | A kind of cooling centrifugal blower of glass production line glass |
| CN111852912A (en) * | 2020-07-17 | 2020-10-30 | 青岛海信日立空调***有限公司 | Fan coil |
-
2018
- 2018-08-20 CN CN201821347177.9U patent/CN208778294U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388326A (en) * | 2019-06-12 | 2019-10-29 | 索奥斯(广东)玻璃技术股份有限公司 | A kind of cooling centrifugal blower of glass production line glass |
| CN111852912A (en) * | 2020-07-17 | 2020-10-30 | 青岛海信日立空调***有限公司 | Fan coil |
| CN111852912B (en) * | 2020-07-17 | 2021-12-07 | 青岛海信日立空调***有限公司 | Fan coil |
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