CN203404117U - Efficient energy-saving double-suction fan - Google Patents
Efficient energy-saving double-suction fan Download PDFInfo
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- CN203404117U CN203404117U CN201320473941.8U CN201320473941U CN203404117U CN 203404117 U CN203404117 U CN 203404117U CN 201320473941 U CN201320473941 U CN 201320473941U CN 203404117 U CN203404117 U CN 203404117U
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- suction fan
- outer ring
- double suction
- coupling
- energy
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Abstract
The utility model discloses an efficient energy-saving double-suction fan. The double-suction fan comprises a fan shell, an air outlet, two air inlets, a bi-direction air inlet impeller and a diffuser, wherein the two sides of the bi-direction air inlet impeller are provided with air inlet ports. The double-suction fan further comprises air inlet prerotators arranged on the two sides of the bi-direction air inlet impeller respectively, and the air inlets of the double-suction fan are respectively communicated with one air inlet port on the same side in an adjustable flow mode through one air inlet prerotator. The structure of the air inlet prerotators is optimized, in this way, adjustment and control over the flow of the air inlet prerotators is more accurate, and energy loss is little, so that working efficiency of the double-suction fan is promoted substantially, under the same working capacity, the axial size of the overall double-suction fan can be reduced substantially, and complete set cost of a unit is reduced.
Description
Technical field
the utility model relates to a kind of energy-efficient double suction fan.
Background technique
in prior art, the flow of double suction fan is conventionally larger, and its flow normally adopts hydraulic couplers to regulate, or realizes adjusting by the method for adjustment doors is installed before its intake grill.Such regulative mode tends to bring larger energy loss, and the working efficiency of double suction fan is lower.
in addition, in prior art, on double suction fan, normally adopt prerotator as adjustment doors, its flow to be regulated, yet the adjusting vane on prerotator is single supporting type substantially, its rigidity is poor, when gas shock, easily deforms, and causing pre-cyclone adjusting vane aperture when closure can not be zero, and also there is deviation in certain aperture down-off, the design of the control system about flow control is caused to certain difficulty.
Summary of the invention
the purpose of this utility model is the shortcoming that overcomes prior art, and a kind of energy-efficient double suction fan is provided, to improve the working efficiency of double suction fan.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of energy-efficient double suction fan, comprise casing, exhaust outlet, two intake grills, described intake grill, described exhaust outlet respectively with the intracavity inter-connection of described casing, described double suction fan also comprises by running shaft can be arranged on the bidirection air intake impeller in described chassis cavity rotationally around Pivot Point Center line, the two ends of described bidirection air intake impeller all have suction port, the air outlet of described bidirection air intake impeller is connected with described exhaust outlet by Diffuser, the both sides of described bidirection air intake impeller are equipped with entry spin device, two described intake grills are connected with described suction port by described entry spin device throughput adjustable ground respectively, described entry spin device comprises and is fixedly mounted on the fixedly outer ring on described casing with hollow cavity, coaxially be arranged on the fixedly inner ring in the inner chamber of described fixedly outer ring, for connecting many connecting rods of described fixedly inner ring and described fixedly outer ring, two ends are arranged on respectively a plurality of stators on described fixedly outer ring and described fixedly inner ring rotationally, the two axial ends of described fixedly outer ring runs through mutually and the two axial ends sealing of described fixedly inner ring arranges, a plurality of described stators are along described fixedly outer ring, circumferentially distributing separately of described fixedly inner ring, on the outside of described fixedly outer ring, be also arranged with rotationally turning collar, on turning collar, be also provided with a plurality of driving mechanisms that are respectively used to drive described a plurality of stator rotations.
preferably, on described fixedly inner ring, offer the through hole axially running through along it, described running shaft is located in described through hole ordinatedly, between the outside perimembranous of described running shaft and the hole wall of described through hole, is provided with Sealing.
preferably, a plurality of described connecting rods are distributed in making progress in week of described fixedly outer ring, described fixedly inner ring at intervals.
preferably, described fixedly outer ring is hollow cylinder shape, and described fixedly outer ring is circumferentially fixed and is spliced by least two arc pieces edges.
further preferably, described fixedly outer ring is fixed and is spliced by upper arc piece, arc lower piece.
preferably, described driving mechanism comprises the first coupling shaft being connected on described turning collar, one end is connected to the first coupling on described the first coupling shaft rotationally, described stator has for being rotatably connected on the axial region on described fixedly outer ring, on described axial region, be fixedly provided with the second coupling, described driving mechanism also comprises for connecting described the first coupling, the second coupling shaft of described the second coupling, the shaft axis of the shaft axis of described the first coupling shaft and described fixedly outer ring is parallel to each other, the shaft axis of the shaft axis of described the second coupling shaft and described the above axial region of stator is parallel to each other.
further preferably, the number of described driving mechanism and the number of described stator equate.
as a kind of concrete mode of execution, two described entry spin devices and described bidirection air intake impeller coaxial inner conductor arrange.
utilization due to technique scheme, the utility model compared with prior art has following advantages: double suction fan of the present utility model, comprise two intake grills, both sides all have the bidirection air intake impeller of suction port, by the both sides at bidirection air intake impeller, entry spin device is set, the intake grill of double suction fan and the same side-inlet throughput adjustable ground of bidirection air intake impeller are connected, simultaneously by the structure of entry spin device is optimized, make entry spin device control more accurate to the adjusting of flow, and energy loss is little, this makes the working efficiency of double suction fan obtain significantly promoting, under same ability to work, the complete machine axial dimension of double suction fan can dwindle significantly, this has reduced the complete cost of unit.
Accompanying drawing explanation
the broken section structural representation that accompanying drawing 1 is double suction fan of the present utility model;
accompanying drawing 2 is the main TV structure schematic diagram of double suction fan upper air prerotator of the present utility model;
accompanying drawing 3 is for looking cross-sectional schematic in the right side of double suction fan upper air prerotator of the present utility model;
accompanying drawing 4 is the left TV structure schematic diagram of double suction fan upper air prerotator of the present utility model;
accompanying drawing 5 is the stereogram of double suction fan upper air prerotator of the present utility model.
wherein: 1, casing; 2, intake grill; 3, exhaust outlet; 4, bidirection air intake impeller; 41, air outlet; 42, air outlet; 5, Diffuser; 6, entry spin device; 61, fixing outer ring; 611, upper arc piece; 612, arc lower piece; 62, fixing inner ring; 63, connecting rod; 64, stator; 641, axial region; 65, turning collar; 66, driving mechanism; 661, the first coupling shaft; 662, the first coupling; 663, the second coupling shaft; 664, the second coupling; 67, Sealing; 7, running shaft.
Embodiment
below in conjunction with accompanying drawing and preferred embodiment of the present utility model, the technical solution of the utility model is further elaborated.
energy-efficient double suction fan shown in Figure 1, this double suction fan comprise have inner chamber casing 1, with the exhaust outlet 3 of the intracavity inter-connection of casing 1 and the both sides that 2, two intake grills 2 of two intake grills lay respectively at exhaust outlet 3.This double suction fan also comprises bidirection air intake impeller 4, Diffuser 5, and two entry spin devices 6, bidirection air intake impeller 4 can be arranged in the inner chamber of casing 1 around Pivot Point Center line rotationally by running shaft 7, this bidirection air intake impeller 4 has an air outlet 41 and is positioned at two suction ports 42 at two ends, between each suction port 42 and the intake grill 2 of respective side, be equipped with entry spin device 6, entry spin device 6 can coaxially arrange with bidirection air intake impeller 4, by entry spin device 6, regulate from intake grill 2 and pass into the air flow rate suction port 42, air-flow produces centrifugal force after the High Rotation Speed of bidirection air intake impeller 4, the pressure of gas raises, kinetic energy increases, again after the further diffusion of Diffuser 5, air channel guiding in casing flows out casing 1 through exhaust outlet 2.
shown in Fig. 2～5, entry spin device 6 comprises and is fixedly mounted on casing 1 fixedly outer ring 61, fixing inner ring 62, inner chamber and its two axial ends that fixedly outer ring 61 has a hollow shape run through mutually, and fixedly two axial end portions of outer ring 61 are respectively as inlet end and the outlet side of this prerotator.Fixedly on inner ring 62, offer the through hole penetrating ordinatedly for running shaft 7 running through vertically, between running shaft 7 and through hole hole wall, be also provided with Sealing 67, thereby the fixing two axial ends of inner ring 62 is sealed to setting, to avoid the leakage of air-flow and to reduce energy loss.Fixedly inner ring 62 is coaxially arranged in the inner chamber of fixing outer ring 61, and fixedly inner ring 62 is fixedly connected by many connecting rods 63 with fixing outer ring 61, and these a plurality of connecting rods 63 are distributed in fixedly outer ring 61 at intervals, fixedly the week of inner ring 62 makes progress.
this entry spin device 6 also comprises a plurality of stators 64, the two ends of each stator 64 are arranged on respectively fixedly outer ring 61 and fixedly on inner ring 62 rotationally, these a plurality of stators 64 are along fixedly outer ring 61, the fixedly circumferentially distribution separately of inner ring 62, fixedly outer ring 61 and fixedly inner ring 62 stator 64 supporting is provided simultaneously, make stator 64 there is good rigidity.Also be provided with rotationally turning collar 65 fixedly going up laterally in the week of outer ring 61, this turning collar 65 is provided with a plurality of driving mechanisms 66 that are respectively used to drive above-mentioned a plurality of stator 64 rotations, and stator 64 is adjusted at time rotational blade opening.Because fixedly outer ring 61 and fixedly inner ring 62 supportings are passed through respectively in the two ends of stator 64, stator 64 has good rigidity, blade on stator 64 can not deform because of the impact of air-flow, and the aperture of blade more easily regulates and has a higher degree of regulation, the blade of stator 64 its aperture when closure also can reach null value, the conformity of the flow of stator 64 upper blades under actual aperture and design load is high, this provides data accurately for control system, and in Flow-rate adjustment process, energy loss has obtained reducing significantly.
shown in Figure 4, both numbers of driving mechanism 66 and stator 64 are consistent and corresponding one by one.In the present embodiment, driving mechanism 66 comprises rotation or is fixedly attached to the first coupling shaft 661 on turning collar 65, one end connects the first coupling 662 on the first coupling shaft 661 rotationally, stator 64 has for being rotatably connected on the axial region 641 on fixing outer ring 61, on axial region 641, be fixedly provided with the second coupling 664, this driving mechanism 66 also comprises for connecting the second coupling shaft 663 of the first coupling 661 and the second coupling 664, the shaft axis of the first coupling shaft 661 and the fixedly shaft axis of outer ring 61 are parallel to each other, on the shaft axis of the second coupling shaft 663 and stator 64, the shaft axis of axial region 641 is parallel to each other, like this, when the power plant on casing 1 drive turning collar 65 rotation, the first coupling shaft 661 drives the first coupling 662, and drive the second coupling 664 to rotate by the second coupling shaft 663, the second coupling 664 drives axial regions 641 around himself shaft axis rotation and the blade opening of stator 64 is adjusted.
in the present embodiment, fixedly outer ring 61 is also set to hollow cylinder shape, fixedly outer ring 61 is fixed and is spliced by upper arc piece 611 and arc lower piece 612, similarly, fixedly inner ring 62 also can be made as two-part, and Sealing 67 is also set to upper and lower two-part, is spliced and combined after each parts are first installed again, install more convenient, and more convenient when the follow-up complete machine to prerotator is debugged.
like this, this double suction fan is when work, air-flow enters casing 1 by two intake grills 2, during air-flow process entry spin device 6, can according to design load, regulate the rotation angle of turning collar 65 on entry spin device 6, stator 64 be occurred from the aperture size of transferring to regulate its blade, thereby make by the throughput of entry spin device 6 consistent with design load, air-flow enters bidirection air intake impeller 4 after entry spin device 6, then by flowing out casing 1 after Diffuser 5 diffusions.In the utility model, because stator 64 on entry spin device 6 has good rigidity, the adjusting of 6 pairs of flows of entry spin device is controlled more accurate, and energy loss is little, this makes the working efficiency of double suction fan obtain significantly promoting, under same ability to work, the complete machine axial dimension of double suction fan can dwindle significantly, and this has reduced the complete cost of unit.
above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (8)
1. an energy-efficient double suction fan, comprise the casing with inner chamber, exhaust outlet, two intake grills, described intake grill, described exhaust outlet respectively with the intracavity inter-connection of described casing, it is characterized in that: described double suction fan also comprises by running shaft can be arranged on the bidirection air intake impeller in described chassis cavity rotationally around Pivot Point Center line, the two ends of described bidirection air intake impeller all have suction port, the air outlet of described bidirection air intake impeller is connected with described exhaust outlet by Diffuser, the both sides of described bidirection air intake impeller are equipped with entry spin device, two described intake grills are connected with described suction port by described entry spin device throughput adjustable ground respectively, described entry spin device comprises and is fixedly mounted on the fixedly outer ring on described casing with hollow cavity, coaxially be arranged on the fixedly inner ring in the inner chamber of described fixedly outer ring, for connecting many connecting rods of described fixedly inner ring and described fixedly outer ring, two ends are arranged on respectively a plurality of stators on described fixedly outer ring and described fixedly inner ring rotationally, the two axial ends of described fixedly outer ring runs through mutually and the two axial ends sealing of described fixedly inner ring arranges, a plurality of described stators are along described fixedly outer ring, circumferentially distributing separately of described fixedly inner ring, on the outside of described fixedly outer ring, be also arranged with rotationally turning collar, on turning collar, be also provided with a plurality of driving mechanisms that are respectively used to drive described a plurality of stator rotations.
2. a kind of energy-efficient double suction fan according to claim 1, it is characterized in that: on described fixedly inner ring, offer the through hole axially running through along it, described running shaft is located in described through hole ordinatedly, between the outside perimembranous of described running shaft and the hole wall of described through hole, is provided with Sealing.
3. a kind of energy-efficient double suction fan according to claim 1, is characterized in that: the week that a plurality of described connecting rods are distributed in described fixedly outer ring, described fixedly inner ring at intervals makes progress.
4. a kind of energy-efficient double suction fan according to claim 1, is characterized in that: described fixedly outer ring is hollow cylinder shape, and described fixedly outer ring is circumferentially fixed and is spliced by least two arc pieces edges.
5. a kind of energy-efficient double suction fan according to claim 4, is characterized in that: described fixedly outer ring is fixed and is spliced by upper arc piece, arc lower piece.
6. a kind of energy-efficient double suction fan according to claim 1, it is characterized in that: described driving mechanism comprises the first coupling shaft being connected on described turning collar, one end is connected to the first coupling on described the first coupling shaft rotationally, described stator has for being rotatably connected on the axial region on described fixedly outer ring, on described axial region, be fixedly provided with the second coupling, described driving mechanism also comprises for connecting described the first coupling, the second coupling shaft of described the second coupling, the shaft axis of the shaft axis of described the first coupling shaft and described fixedly outer ring is parallel to each other, the shaft axis of the shaft axis of described the second coupling shaft and described the above axial region of stator is parallel to each other.
7. a kind of energy-efficient double suction fan according to claim 6, is characterized in that: the number of described driving mechanism equates with the number of described stator.
8. according to the arbitrary described a kind of energy-efficient double suction fan of claim 1～7, it is characterized in that: two described entry spin devices and described bidirection air intake impeller coaxial inner conductor arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473941.8U CN203404117U (en) | 2013-08-05 | 2013-08-05 | Efficient energy-saving double-suction fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473941.8U CN203404117U (en) | 2013-08-05 | 2013-08-05 | Efficient energy-saving double-suction fan |
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| Publication Number | Publication Date |
|---|---|
| CN203404117U true CN203404117U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473941.8U Expired - Lifetime CN203404117U (en) | 2013-08-05 | 2013-08-05 | Efficient energy-saving double-suction fan |
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| Country | Link |
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| CN (1) | CN203404117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438015A (en) * | 2013-08-05 | 2013-12-11 | 苏州欧拉工程技术有限公司 | High-efficiency and energy-saving double suction fan |
| CN108457895A (en) * | 2018-01-09 | 2018-08-28 | 黄昌金 | A kind of axis stream opposite direction turbine |
-
2013
- 2013-08-05 CN CN201320473941.8U patent/CN203404117U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438015A (en) * | 2013-08-05 | 2013-12-11 | 苏州欧拉工程技术有限公司 | High-efficiency and energy-saving double suction fan |
| CN103438015B (en) * | 2013-08-05 | 2016-07-06 | 苏州欧拉工程技术有限公司 | A kind of energy-efficient double suction fan |
| CN108457895A (en) * | 2018-01-09 | 2018-08-28 | 黄昌金 | A kind of axis stream opposite direction turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171226 Address after: Taicang City, Suzhou City, Jiangsu province 215400 Temple Economic and Technological Development Zone, Road No. 18 Patentee after: SUZHOU EULERTURBO MACHINERY CO.,LTD. Address before: 215127 Suzhou City, Suzhou, Jiangsu, Luzhi Town, Ming City Road, No. 16 (Science and Technology Park) Patentee before: SUZHOU EULER ENGINEERING TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |