CN106050745A - Air guiding hood capable of flow guiding and noise reduction - Google Patents
Air guiding hood capable of flow guiding and noise reduction Download PDFInfo
- Publication number
- CN106050745A CN106050745A CN201610636098.9A CN201610636098A CN106050745A CN 106050745 A CN106050745 A CN 106050745A CN 201610636098 A CN201610636098 A CN 201610636098A CN 106050745 A CN106050745 A CN 106050745A
- Authority
- CN
- China
- Prior art keywords
- wind
- polylith
- air guiding
- noise reduction
- guiding hood
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
Abstract
The invention provides an air guiding hood capable of flow guiding and noise reduction. The air guiding hood capable of flow guiding and noise reduction comprises a box body. The box body comprises a top plate and a plurality of side plates. A round ventilation opening is formed in the top plate. The bottom surface enclosed by the plurality of side plates is of a square shape. The air guiding hood capable of flow guiding and noise reduction further comprises a plurality of air guiding hood plates. The sections of the ends of the air guiding hood plates are of arc shapes and the sections of the other ends of the air guiding hood plates are of straight line shapes. The plurality of air guiding hood plates are connected and formed in the box body closely by welding. The ends, of which sections are of arc shapes, of the air guiding hood plates abut on the round edge of the ventilation opening to form a standard roundness in an enclosing manner and the ends, of which sections are of straight line shapes, of the air guiding hood plates abut on the bottom surface of box body to form a standard squareness in an enclosing manner. The air guiding hood provided by the invention is in a smooth transition and streamline polyhedron structure in the direction that the air guiding hood faces a runner inwardly, so that a relatively stable flow field can be built in the air guiding hood and at the same time the air guiding hood with excellent performance can be produced without the need for developing moulds.
Description
Technical field
The present invention relates to the wind scooper of a kind of chiller, particularly relate to be configured with in a kind of engineering machinery heat exchanger,
Fan and there is between fan and heat exchanger the wind scooper of guide functions.
Background technology
Fan noise is one of three big main noise sources in engineering machinery, and the consumption of the power of fan is at engine accessory power rating
Loss in hold pride of place, account between 5% the 12% of electromotor effective output, therefore to cooling system in engineering machinery
Carry out power optimization coupling, improve fan efficiency and the heat-sinking capability of heat exchanger, thus meeting the premise of thermal balance demand
Under, reduce rotation speed of the fan as far as possible and become current noise reduction, the Main Means of fall fan energy consumption；
The wind scooper that present stage is used mainly has two kinds of forms: stamping forming, welding；The machine-shaping of welding,
At the product design initial stage, during prepattern coupling, it is prone to amendment, and the most relatively low without mould development, but by the technique of welding fabrication
Impact.As it is shown in figure 1, typical engineering machinery chiller includes heat exchanger 101, fan 102 and box wind scooper 103.
Shown box wind scooper 103 is square, and welding forms, figure it is seen that box wind scooper 103 is internal has a plurality of seamed edge
103B.When square heat exchanger group is transitioned into the axial-flow cooling fan of left circular motion, it divides at joint seamed edge 103B
Bright, transition is stiff, the sudden change on these seamed edges, corner angle and limit, easily causing backflow and producing air power noise and wind energy
Loss, the backflow in cover simultaneously also can make the hot blast (or heat radiation) of heat exchanger to discharge in time, shine into the temperature rise of local,
The effect of flow-disturbing simultaneously can make the wind speed of local diminish, and causes spreader surface wind speed profile unequal, and these factors will be led
The heat exchanger effectiveness of heat converter declines；And stamping forming corner angle transition is mild, can eliminate in the above cover due to
Corner angle (or limit) eddy current and a series of problem that causes, but develop stamping forming mould in hope at the beginning of product design, flower
Fei great, and for the design initial stage due to the assurance imperfection of relevant parameter, wind scooper need to be modified, but the molded meeting of mould
Limit its further coupling and change；
Both the above wind scooper can only play certain guide functions, but by aerofoil fan, heat exchanger and wind scooper composition
Cooling system be one more relative to confined space, without sound absorption, and fan is again that three big masters make an uproar in engineering machinery
One of source of sound, the reverberation in cover will be the hugest.
Summary of the invention
For solving the problem of above-mentioned existence, the invention provides a kind of wind scooper, it has preferable wind effect, it is possible to
Eliminate wind-guiding turbulent flow to greatest extent.
Specifically the invention provides a kind of water conservancy diversion noise reduction wind scooper, including casing, described casing includes that top board is with many
Block side plate, described top board is provided with circular ventilation mouth, and fan is arranged in described circular ventilation mouth, and described polylith is sequentially connected with side
Plate surrounds the side of described casing, and described polylith side plate extends to bottom surface at an angle from described top board, described polylith side
The bottom surface that plate surrounds also squarely；Also including polylith wind-guiding cover plate, the cross section of one end of described wind-guiding cover plate is in the arc-shaped, another
The cross section of end is linear, and described polylith wind-guiding cover plate is closely attached the inside being molded over described casing by welding, described
One end that the cross section of polylith wind deflector is in the arc-shaped is resisted against on the round edge of described circular ventilation mouth, surrounds the circle of a standard
Shape；The cross section of described polylith wind-guiding cover plate is that rectilinear one end is resisted against on the bottom surface of described casing, surrounds a standard side
Shape.
Further, the seamed edge between described polylith wind deflector is formed for welding, and transition is circular arc.
Further, the shape that described polylith wind deflector surrounds is gradually from described square base facing to described circular ventilation mouth
Contracting.
Further, described angle is arbitrarily angled in 90 degree or 90-180 degree, and, described polylith side plate
Each piece is identical with the angle of described top board or differs.
It addition, present invention also offers a kind of method manufacturing water conservancy diversion noise reduction wind scooper, comprise the following steps:
Being internally provided with polylith wind-guiding cover plate at wind scooper casing, the cross section of one end of described wind-guiding cover plate is in the arc-shaped, separately
The cross section of one end is linear；
Described polylith wind-guiding cover plate is closely attached the inside being molded over described casing so that described polylith wind-guiding by welding
One end that the cross section of plate is in the arc-shaped is resisted against on the round edge of circular ventilation mouth, surrounds the circle of a standard；Described polylith is led
The cross section of fan housing plate is that rectilinear one end is resisted against on the bottom surface of described casing, surrounds a standard square；
Seamed edge between described polylith wind-guiding cover plate is welded, and transition is circular arc.
Further so that the shape that described polylith wind deflector surrounds from described square base facing to described circular ventilation mouth
It is tapered.
The wind scooper on corner angle and limit of having of welding molding of the present invention is similar to punching press interior towards having on the direction of runner
Molding there is rounding off, fairshaped polyhedral structure so that it is a metastable flow field can be set up in inside,
Simultaneously in the case of not mold developing, can the good wind scooper of production performance so that it is noise reduction and water conservancy diversion can be reached simultaneously
Effect, reduces new deisgn product and the production cost of small market capacity products, accelerates the listing speed of be pilot.
Accompanying drawing explanation
The wind scooper of the welding molding of accompanying drawing 1 prior art installs the axonometric chart of operating position in a cooling system；
The axonometric chart of the welding molding wind scooper of accompanying drawing 2 prior art；
Accompanying drawing 3 is the axonometric chart of the wind scooper of the present invention.
Detailed description of the invention
The present invention is described further with detailed description of the invention below in conjunction with the accompanying drawings.
As shown in Figure 1-2, existing box wind scooper includes top board and four pieces of side plate 103A, and described top board is provided with circle
Vent, fan 102 is arranged in described circular ventilation mouth.Described four blocks of side plates from described top board at an angle to bottom surface
Extend, the bottom surface also squarely that described four blocks of side plates surround.Described angle can be the arbitrary shape in 90 degree or 90-180 degree
Shape.Further, the angle of every piece of side plate 103A and top board can differ.
As it is shown on figure 3, the present invention's can water conservancy diversion noise reduction wind scooper be that box wind scooper transformation from the prior art forms.
It includes polylith wind-guiding cover plate 104, and the cross section of one end of described wind-guiding cover plate 104 is in the arc-shaped, and the cross section of the other end is straight line,
Described polylith wind deflector is closely attached by welding and is molded over inside box wind scooper ground so that cutting of polylith wind deflector 104
One end in the arc-shaped, face is resisted against on the round edge of described circular ventilation mouth, surrounds the circle of a standard.And described polylith is led
The cross section of aerofoil 104 is that one end of straight line is resisted against on the bottom surface of described casing, surrounds a standard square.The most
Seamed edge 105 between block wind deflector 104 is formed for welding, and transition is circular arc.The shape that described polylith wind deflector 104 surrounds
Shape is tapered from described square base facing to described circular ventilation mouth.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (6)
1. a water conservancy diversion noise reduction wind scooper, it is characterised in that: include that casing, described casing include top board and polylith side plate, described
Top board is provided with circular ventilation mouth, and fan is arranged in described circular ventilation mouth, and described polylith is sequentially connected with side plate and surrounds described
The side of casing, described polylith side plate extends to bottom surface at an angle from described top board, the end that described polylith side plate surrounds
Face also squarely；Also including polylith wind-guiding cover plate, the cross section of one end of described wind-guiding cover plate is in the arc-shaped, and the cross section of the other end is
Linear, described polylith wind-guiding cover plate is closely attached the inside being molded over described casing, described polylith wind deflector by welding
One end in the arc-shaped, cross section be resisted against on the round edge of described circular ventilation mouth, surround the circle of a standard；Described polylith
The cross section of wind-guiding cover plate is that rectilinear one end is resisted against on the bottom surface of described casing, surrounds a standard square.
2. water conservancy diversion noise reduction wind scooper as claimed in claim 1, it is characterised in that: the seamed edge between described polylith wind deflector is weldering
Connect formation, and transition is circular arc.
3. water conservancy diversion noise reduction wind scooper as claimed in claim 2, it is characterised in that: the shape that described polylith wind deflector surrounds is from institute
It is tapered for stating square base facing to described circular ventilation mouth.
4. water conservancy diversion noise reduction wind scooper as claimed in claim 3, it is characterised in that: described angle is 90 degree or 90-180 degree
Interior is arbitrarily angled, and, each piece of described polylith side plate is identical with the angle of described top board or differs.
5. the method for the water conservancy diversion noise reduction wind scooper manufactured as described in claim 1-5 is arbitrary, it is characterised in that: include following
Step:
Being internally provided with polylith wind-guiding cover plate at wind scooper casing, the cross section of one end of described wind-guiding cover plate is in the arc-shaped, separately
The cross section of one end is linear；
Described polylith wind-guiding cover plate is closely attached the inside being molded over described casing so that described polylith wind-guiding by welding
One end that the cross section of plate is in the arc-shaped is resisted against on the round edge of circular ventilation mouth, surrounds the circle of a standard；Described polylith is led
The cross section of fan housing plate is that rectilinear one end is resisted against on the bottom surface of described casing, surrounds a standard square；
Seamed edge between described polylith wind-guiding cover plate is welded, and transition is circular arc.
6. the method manufacturing water conservancy diversion noise reduction wind scooper as claimed in claim 5, it is characterised in that: make described polylith wind deflector
The shape surrounded is tapered from described square base facing to described circular ventilation mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636098.9A CN106050745A (en) | 2016-08-05 | 2016-08-05 | Air guiding hood capable of flow guiding and noise reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636098.9A CN106050745A (en) | 2016-08-05 | 2016-08-05 | Air guiding hood capable of flow guiding and noise reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050745A true CN106050745A (en) | 2016-10-26 |
Family
ID=57480753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610636098.9A Pending CN106050745A (en) | 2016-08-05 | 2016-08-05 | Air guiding hood capable of flow guiding and noise reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050745A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194847A (en) * | 2016-08-05 | 2016-12-07 | 广西联邦农业科技有限公司 | A kind of method manufacturing water conservancy diversion noise reduction wind scooper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080193286A1 (en) * | 2004-11-04 | 2008-08-14 | Naoya Kakishita | Radiator-Shroud Structure |
| CN202646165U (en) * | 2012-03-31 | 2013-01-02 | 无锡市普尔换热器制造有限公司 | Wind guide cover |
| CN203239609U (en) * | 2012-05-29 | 2013-10-16 | 广西柳工机械股份有限公司 | Wind guide cover assembly for engineering machinery |
| CN105570193A (en) * | 2014-11-24 | 2016-05-11 | 徐工集团工程机械股份有限公司 | Radiator wind scooper structure for engineering machine |
| CN106194847A (en) * | 2016-08-05 | 2016-12-07 | 广西联邦农业科技有限公司 | A kind of method manufacturing water conservancy diversion noise reduction wind scooper |
-
2016
- 2016-08-05 CN CN201610636098.9A patent/CN106050745A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080193286A1 (en) * | 2004-11-04 | 2008-08-14 | Naoya Kakishita | Radiator-Shroud Structure |
| CN202646165U (en) * | 2012-03-31 | 2013-01-02 | 无锡市普尔换热器制造有限公司 | Wind guide cover |
| CN203239609U (en) * | 2012-05-29 | 2013-10-16 | 广西柳工机械股份有限公司 | Wind guide cover assembly for engineering machinery |
| CN105570193A (en) * | 2014-11-24 | 2016-05-11 | 徐工集团工程机械股份有限公司 | Radiator wind scooper structure for engineering machine |
| CN106194847A (en) * | 2016-08-05 | 2016-12-07 | 广西联邦农业科技有限公司 | A kind of method manufacturing water conservancy diversion noise reduction wind scooper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194847A (en) * | 2016-08-05 | 2016-12-07 | 广西联邦农业科技有限公司 | A kind of method manufacturing water conservancy diversion noise reduction wind scooper |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |
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| WD01 | Invention patent application deemed withdrawn after publication |