CN106768761A - A kind of track train draws the experiment wind cabinet of diagonal flow fan - Google Patents
A kind of track train draws the experiment wind cabinet of diagonal flow fan Download PDFInfo
- Publication number
- CN106768761A CN106768761A CN201611260731.5A CN201611260731A CN106768761A CN 106768761 A CN106768761 A CN 106768761A CN 201611260731 A CN201611260731 A CN 201611260731A CN 106768761 A CN106768761 A CN 106768761A
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- guide duct
- plate
- wind cabinet
- flow fan
- diagonal flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides the experiment wind cabinet that a kind of track train draws diagonal flow fan, including support base and the air guide being fixed on support base, air guide be included under guide duct one and guide duct two and in upper inlet box, guide duct one is isometrical straight tube, guide duct two is conical pipe, bore of the bore of the upper port of guide duct two more than or equal to air guide hole two, the top board A of inlet box is provided with main air inlet, support base is provided with the horizontally disposed exhausting duct docked with exhaust outlet one and exhaust outlet two, the wind that diagonal flow fan is sent out is from top to bottom successively through inlet box, guide duct one and guide duct two, exhaust outlet one and exhaust outlet two, support base exhausting duct is emitted into outside experiment wind cabinet.The present invention reduces air-flow to the impact vibration for producing of wind cabinet and the vibration for reducing blower fan while the rigidity of experiment wind cabinet is ensured, blower fan is worked under operating point, fan vibration test result is set to more conform to reality, and simple structure, it is easy to make, easily realize.
Description
Technical field
The present invention relates to track train fan vibration testing equipment, particularly, it is related to a kind of track train traction oblique flow wind
The experiment wind cabinet of machine.
Background technology
The factor of influence fan vibration is many but common mainly to be had rotor dynamic balancing, misaligns, the rigidity of blower fan structure
Not enough, mounting seat installation question, the influence of the mounting seat rigidity of structure and air-flow to structure etc..Therefore the vibration of blower fan is except ensureing
Outside self structure intensity and the quality of production, condition when also with vibration-testing has very big relation.Vibration survey is being carried out to blower fan
During examination, enough high intensity is installed except guarantee blower fan, mounting seat has outside sufficiently high rigidity, in addition it is also necessary to ensure that blower fan is tried one's best
Worked under operating point (fan static pressure characteristic curve and the characteristic intersection point in networking), now influence of the air-flow to fan vibration
It is minimum.Traction diagonal flow fan is mainly used in the effect of track train traction electric machine radiating, is designed to the diagonal flow fan
When, it is designed when being and being worked under operating point according to the radiating requirements and blower fan of traction electric machine, existing track train oblique flow
Blower fan dispatch from the factory carry out routine test when, by experiment condition is limited, when carrying out fan vibration and testing, its experiment wind cabinet is often
Tested not in accordance with operating point, now, influence of the air-flow to fan vibration is larger, so as to the vibration for causing blower fan is surveyed
Test result does not meet reality, and testing result is inaccurate, so as to cause diagonal flow fan to meet train traction motor because of flase drop
Use requirement.In order to solve this problem, this area needs to provide the experiment wind cabinet that a kind of track train draws diagonal flow fan, makes
Obtaining diagonal flow fan can carry out vibration test under operating point.
The content of the invention
Present invention aim at the experiment wind cabinet for providing a kind of track train and drawing diagonal flow fan, with solving background technology
The problem of proposition.
To achieve the above object, the invention provides the experiment wind cabinet that a kind of track train draws diagonal flow fan, including branch
Support seat 1 and the air guide 2 that is fixed on support base, the air guide are included in lower guide duct 1 and guide duct 2 22
And in upper inlet box 23, the guide duct one is isometrical straight tube, the guide duct two is upper port of the tube wall with inclined plane 220
The conical pipe that bore is big, lower port bore is small, the institute of guide duct two is located at the side of close guide duct one, the air intake with inclined plane
The top board A235 of case is provided with the main air inlet 231 for being docked with diagonal flow fan air outlet, the base plate B232 of the inlet box
On be respectively arranged with the air guide hole 1 that is docked with the upper port of the guide duct one and docked with the upper port of the guide duct two
Air guide hole 2 234, the bore of the bore more than or equal to air guide hole one of the upper port of the guide duct one, the upper end of the guide duct two
The bore of mouth is respectively arranged with and the guide duct more than or equal to the bore of air guide hole two on the top board C11 of the support base
The exhaust outlet 1 of one lower port docking and the exhaust outlet 2 112 docked with the lower port of the guide duct two, the support base 1
It is provided with the horizontally disposed exhausting duct 13 docked with exhaust outlet one and exhaust outlet two, the wind that diagonal flow fan is sent out is from upper
Reality is emitted under through inlet box, guide duct one and guide duct two, exhaust outlet one and exhaust outlet two, support base exhausting duct 13 successively
Test outside wind cabinet.Further, the air guide also includes the plate face being connected between support base and inlet box vertically
The supporting plate 24 of setting.A length of 150~300mm of the upper and lower port of guide duct one, between a width of 75~150mm.Guide duct two
Lower port a length of 600~1000mm, a width of 100~200mm；The guide duct two a length of 500~800mm in upper port footpath, a width of 450
~750mm.A diameter of 500~the 900mm of bore of main air inlet, to meet different flow (3~8m3/ s) and different pressures
The requirement of the vibration-testing of the diagonal flow fan of (5000~2900Pa).
Further, the guide duct two include with the inclined plane 220 hang plate 221, respectively with the inclination
The vertically connected side plate 2 222 of plate both lateral sides and connected backboard relative with the hang plate and vertical with the side plate two
223, the backboard both lateral sides extend respectively to the madial wall of supporting plate 24 and are connected with the madial wall of supporting plate 24.
Further, the part that the supporting plate 24 is located between inlet box and support base carries inclines with two bands of guide duct
The parallel hypotenuse 241 in inclined-plane 220, and hypotenuse is located at the side for being close to guide duct 1, supporting plate is located at inlet box and support base
Between part upper end be wide end, lower end is narrow end.
Further, the top board A235 of the inlet box is downward opening U-shape structure, two parallel-plates of top board A235
Face vertically sets and constitutes a pair of parallel side plate of inlet box, inlet box it is another to parallel side plate bottom and the branch
Fagging top is connected or another plate for being integrated setting with the supporting plate to parallel side plate, and the base plate B232 of inlet box is along water
Square to setting and being connected between the inner side of the two pairs of parallel side plate bottoms, base plate is consolidated at the position of air guide hole one with guide duct one
Even, it is connected with guide duct two at the position of air guide hole two.
In order to improve weldability, the hang plate 221 of guide duct two and two blocks of side plates 2 222 can be thin-walled part, guide duct one
Can be formed by welding by rectangular tube or two blocks of L-type sheet materials, can be also made up of monolithic thin-walled part bending.Vibration test is carried out in blower fan
When, guide duct one can carry out axial drainage to the wind that diagonal flow fan is sent out, and guide duct two is used for the wind sent out to diagonal flow fan
The buffering of radial direction is carried out, so that the fluid property of blower fan reaches maximization application, stall during blower fan work is reduced, so as to subtract
Vibration of the little airflow to blower fan and wind cabinet, makes blower fan be worked under operating point or be worked in the case where operating point is received, and makes wind
Machine vibration test result can meet reality.
Further, top margin is provided with the inlet box to be connected with top board A235 inner roof walls, the two ends of length direction are consolidated
It is connected in the reinforcement gusset 236 between another inwall to parallel side plate.
Further, the one side of gusset 236 of strengthening can improve the intensity of inlet box, reduce the vibration of wind cabinet, and subtract
Small experiment wind cabinet is transferred to the vibration of blower fan, on the other hand plays guiding function to the air-flow in inlet box, reduces air-flow to wind cabinet
Impact, further reduce experiment wind cabinet and be transferred to the vibration of blower fan.
Further, the base plate D12 of the support base is horizontally disposed and is connected with ground, the center of base plate D12
Region is provided with the deep gouge or through hole 121 for base plate surrounding is preferably contacted with ground, and deep gouge or through hole 121 a length of 800~
1200mm, a width of 800~1200mm.
Further, the support base includes the top board C11, base plate D12 and is connected between top board C and base plate D
At least two I-steel support beams 14, the web 141 of I-steel support beam is horizontally disposed, each I-steel support beam 14
One groove face is docked upward and with exhaust outlet one and exhaust outlet two, another groove face of each I-steel support beam 14 down with base plate
Docking is docked with through hole 121, the gap and groove face upward between each I-steel support beam constitute some it is parallel described
Exhausting duct 13.
Preferably, the tube wall of the guide duct 2 22 with the angle between inclined plane 220 and horizontal plane be 50 °~70 °.
Beneficial effect：The knot that experiment wind cabinet of the invention passes through rational design inlet box, guide duct one and guide duct two
Structure, ensure experiment wind cabinet rigidity while, moreover it is possible to optimization airflow, reduce air-flow to wind cabinet impact produce vibration and
Reduce the vibration of blower fan, blower fan is worked under operating point or is worked in the case of close to operating point, test fan vibration
Result can more conform to reality, meet《JB/T 8689-2014 ventilation blowers vibration detections and its limit value》To assembling and wind
The requirement of machine operating mode, and simple structure, it is easy to make, easily realize.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the experiment wind cabinet front view of the preferred embodiment of the present invention；
Fig. 2 is the experiment wind cabinet side view of the preferred embodiment of the present invention；
Fig. 3 is the experiment wind cabinet top view of the preferred embodiment of the present invention；
Fig. 4 is the experiment wind cabinet three-dimensional view one of the preferred embodiment of the present invention；
Fig. 5 is the half-sectional three-dimensional view two of experiment wind cabinet of the preferred embodiment of the present invention；
Fig. 6 is the top view of the top board A of the preferred embodiment of the present invention；
Fig. 7 is the side view of the top board A of the preferred embodiment of the present invention；
Fig. 8 is the top view of the base plate B of the preferred embodiment of the present invention；
Fig. 9 is the top view of the top board C of the preferred embodiment of the present invention；
Figure 10 is the top view of the base plate D of the preferred embodiment of the present invention.
In figure：1- support bases, 11- top boards C, 111- exhaust outlet one, 112- exhaust outlets two, 12- base plates D, 121- through hole,
122- screwed holes one, 13- exhausting ducts, 14- I-steel support beams, 141- webs, 2- air guides, 21- guide ducts one, 22- leads
Airduct two, 220- inclined planes, 221- hang plates, 222- side plates two, 223- backboards, 23- inlet boxes, 231- main air inlets, 232-
Base plate B, 233- air guide hole one, 234- air guide holes two, 235- top boards A, 236- strengthen gusset, 237- screwed holes two, 24- supports
Plate, 241- hypotenuses.
Specific embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
The experiment wind cabinet of diagonal flow fan is drawn referring to a kind of track train of Fig. 1~Fig. 5, including support base 1 and is fixed on
Air guide 2 on support base, the air guide be included under guide duct 1 and guide duct 2 22 and in upper air intake
Case 23, the guide duct one is isometrical straight tube, and the guide duct two is for upper end bore of the tube wall with inclined plane 220 is big, lower port
The small conical pipe in footpath, guide duct two with inclined plane be located near guide duct one side, on the top board A235 of the inlet box
Be provided with the main air inlet 231 for being docked with diagonal flow fan air outlet, be respectively arranged with the base plate B232 of the inlet box with
The air guide hole 1 of the upper port of the guide duct one docking and the air guide hole 2 234 docked with the upper port of the guide duct two, institute
The bore for stating the upper port of guide duct one is equal to the bore of air guide hole one, and the bore of the upper port of the guide duct two is equal to air guide hole two
Bore, be respectively arranged with the top board C11 of the support base exhaust outlet 1 that is docked with the lower port of the guide duct one and
The exhaust outlet 2 112 docked with the lower port of the guide duct two, the bore of the lower port of the guide duct one is equal to exhaust outlet one
Bore, the bore of the lower port of the guide duct two is equal to the bore of exhaust outlet two, the support base 1 be provided with exhaust outlet one and
Exhaust outlet two docking horizontally disposed exhausting duct 13, diagonal flow fan send out wind from top to bottom successively through inlet box,
Guide duct one and guide duct two, exhaust outlet one and exhaust outlet two, support base exhausting duct 13 are emitted into outside experiment wind cabinet.
In the present embodiment, top board C11 is processed with base plate D12 by rectangle square plate, and base plate D12 plate faces are in the horizontal direction
Set and be connected with ground, the central area of base plate D12 is provided with the (ginseng of through hole 121 for making base plate surrounding preferably be contacted with ground
See Fig. 4, Fig. 5 and Figure 10).Through hole 121 is rectangle, or circular or oval, is provided with the surrounding of through hole 121 on base plate D12
Screwed hole 1 for installing the bolt being connected with ground.In the present embodiment, opened around main air inlet on top board A235
There is the screwed hole 2 237 for being connected with diagonal flow fan air outlet.
In the present embodiment, support base includes the top board C11, base plate D12 and be connected between top board C and base plate D two
Root I-steel support beam 14, the web 141 of I-steel support beam is horizontally disposed, a groove of two I-steel support beams 14
Face is docked upward and with exhaust outlet one and exhaust outlet two, gap between two I-steel support beams and with two groove faces upward
Three parallel exhausting ducts 13 are constituted, another groove face of two I-steel support beams 14 is docked with through hole 121 down.The present embodiment
In, air guide also includes the supporting plate 24 that the plate face being connected between support base and inlet box is vertically set.
In the present embodiment, the upper port of guide duct one and the length of lower port are 205mm, wide to be 102.5mm.Guide duct
Two lower port a length of 888mm, a width of 155mm；The upper port of guide duct two a length of 654mm, a width of 654mm.Main air inlet it is straight
Footpath is 800mm.Through hole 121 a length of 1000mm, a width of 1000mm, the corresponding flow of traction diagonal flow fan operating point are 5.5m3/ s,
Static pressure is 3900Pa.In the present embodiment, guide duct two includes the hang plate 221 with inclined plane 220, horizontal with hang plate respectively
The side plate 2 222 and connected backboard 223 relative with hang plate and vertical with side plate two being vertically connected to both sides, backboard horizontal two
Side extends respectively to the madial wall of supporting plate 24 and is connected with the madial wall of supporting plate 24.
Referring to Fig. 1, in the present embodiment, the part that supporting plate 24 is located between inlet box and support base carries and guide duct two
With the parallel hypotenuse 241 of inclined plane 220, and hypotenuse is located near the side of guide duct 1, supporting plate be located at inlet box with
Part upper end between support base is wide end, and lower end is narrow end.
In the present embodiment, the top board A235 of inlet box is downward opening U-shape structure, two parallel plate faces of top board A235
The a pair of parallel side plate of inlet box is vertically set and constitutes, the another of inlet box is one to parallel side plate and supporting plate 24
The plate that body is set, the base plate B232 of inlet box is horizontally disposed and is connected between the inner side of two pairs of parallel side plate bottoms,
Base plate B is connected with guide duct one at the position of air guide hole one, is connected with guide duct two at the position of air guide hole two.
It is provided with top margin in the present embodiment, in inlet box to be connected with top board A235 inner roof walls, the two ends of length direction are connected
Reinforcement gusset 236 between another inwall to parallel side plate.
In the present embodiment, strengthen gusset and be arranged at the position tangent with main air inlet 231.
In the present embodiment, support base includes top board C11, base plate D12 and parallel setting of being connected between top board C and base plate D
The two I-steel support beams 14 put, the length direction of I-steel support beam 14 is horizontally disposed.
Referring to Fig. 1, in the present embodiment, the tube wall of guide duct 2 22 with angle α between inclined plane 220 and horizontal plane etc.
In 60 °.
In the present embodiment, experiment wind cabinet is in symmetrical structure, i.e. guide duct one, guide duct two, inlet box, support base
Vertical plane overlaps with the symmetrical plane of two I-steel support beams, on the one hand convenient to make, and on the other hand makes wind cabinet stress more equal
Weighing apparatus, reduces fan vibration.
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of track train draws the experiment wind cabinet of diagonal flow fan, it is characterised in that including support base (1) and be fixed on support
Air guide (2) on seat, the guide duct one (21) under the air guide is included in enters with guide duct two (22) and in upper
Bellows (23), the guide duct one is isometrical straight tube, and the guide duct two is upper port bore of the tube wall with inclined plane (220)
Greatly, the small conical pipe of lower port bore, guide duct two with inclined plane be located near guide duct one side, the inlet box
Top board A (235) is provided with the main air inlet (231) for being docked with diagonal flow fan air outlet, the base plate B of the inlet box
(232) be respectively arranged with the air guide hole one (233) that is docked with the upper port of the guide duct one and with the upper end of the guide duct two
The air guide hole two (234) of mouth docking, the bore of the bore more than or equal to air guide hole one of the upper port of the guide duct one is described to lead
The bore of the upper port of airduct two is respectively arranged with more than or equal to the bore of air guide hole two on the top board C (11) of the support base
The exhaust outlet one (111) docked with the lower port of the guide duct one and the exhaust outlet two docked with the lower port of the guide duct two
(112), the support base (1) is provided with the horizontally disposed exhausting duct docked with exhaust outlet one and exhaust outlet two
(13) wind that, diagonal flow fan is sent out is from top to bottom successively through inlet box, guide duct one and guide duct two, exhaust outlet one and exhaust outlet
2nd, support base exhausting duct 13 is emitted into outside experiment wind cabinet.
2. a kind of track train according to claim 1 draws the experiment wind cabinet of diagonal flow fan, it is characterised in that described to lead
Stream component also includes the supporting plate (24) that the plate face being connected between support base and inlet box is vertically set.
3. a kind of track train according to claim 2 draws the experiment wind cabinet of diagonal flow fan, it is characterised in that described to lead
Airduct two includes the hang plate (221) with the inclined plane (220), the side plate being connected with the hang plate both lateral sides respectively
Two (222) and backboard (223) that is relative with the hang plate and being connected with the side plate two, the backboard both lateral sides prolong respectively
Extend the madial wall of supporting plate (24) and be connected with the madial wall of supporting plate (24).
4. a kind of track train according to claim 2 draws the experiment wind cabinet of diagonal flow fan, it is characterised in that the branch
Part of the fagging (24) between inlet box and support base with guide duct two with the parallel hypotenuse of inclined plane (220)
(241), and hypotenuse is located near the side of guide duct one (21), supporting plate is located at part upper end between inlet box and support base
It is wide end, lower end is narrow end.
5. a kind of track train according to claim 2 draws the experiment wind cabinet of diagonal flow fan, it is characterised in that it is described enter
The top board A (235) of bellows is downward opening U-shape structure, and two parallel plate faces of top board A (235) are vertically set simultaneously
The a pair of parallel side plate of inlet box is constituted, the another of inlet box is connected or another to parallel side plate bottom with supporting plate top
The plate of setting is integrated with the supporting plate (24) to parallel side plate, the base plate B (232) of inlet box is connected in two pairs of parallel sides
Between the inner side of plate bottom.
6. a kind of track train according to claim 5 draws the experiment wind cabinet of diagonal flow fan, it is characterised in that it is described enter
It is provided with top margin and top board A (235) inner roof wall in bellows to be connected, the two ends of length direction are connected in described another to parallel side plate
Reinforcement gusset (236) between inwall.
7. a kind of track train according to claim 6 draws the experiment wind cabinet of diagonal flow fan, it is characterised in that described to add
Strong gusset is arranged at the position tangent with main air inlet (231).
8. a kind of track train according to any one in claim 1~7 draws the experiment wind cabinet of diagonal flow fan, and it is special
Levy and be, the support base includes the top board C (11), base plate D (12) and be connected between top board C and base plate D at least two
Root I-steel support beam (14), the web (141) of I-steel support beam is horizontally disposed, each I-steel support beam (14)
One groove face is docked upward and with exhaust outlet one and exhaust outlet two, the gap between each I-steel support beam and groove face structure upward
Into some parallel exhausting ducts (13).
9. a kind of track train according to any one in claim 1~7 draws the experiment wind cabinet of diagonal flow fan, and it is special
Levy and be, the tube wall of the guide duct two (22) angle with inclined plane (220) and horizontal plane between be 50 °~70 °.
10. a kind of track train according to any one in claim 1~7 draws the experiment wind cabinet of diagonal flow fan, its
It is characterised by, the base plate D (12) of the support base is horizontally disposed and is connected with ground, the central area of base plate D (12)
It is provided with the deep gouge or through hole (121) for base plate surrounding is preferably contacted with ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260731.5A CN106768761B (en) | 2016-12-30 | 2016-12-30 | Experiment wind cabinet of rail train traction diagonal flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260731.5A CN106768761B (en) | 2016-12-30 | 2016-12-30 | Experiment wind cabinet of rail train traction diagonal flow fan |
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| Publication Number | Publication Date |
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| CN106768761A true CN106768761A (en) | 2017-05-31 |
| CN106768761B CN106768761B (en) | 2023-07-04 |
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