CN107300086A - A kind of equal flow tube of inner guide type and its application - Google Patents
A kind of equal flow tube of inner guide type and its application Download PDFInfo
- Publication number
- CN107300086A CN107300086A CN201710731598.5A CN201710731598A CN107300086A CN 107300086 A CN107300086 A CN 107300086A CN 201710731598 A CN201710731598 A CN 201710731598A CN 107300086 A CN107300086 A CN 107300086A
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- China
- Prior art keywords
- flow tube
- exhaust vent
- equal flow
- air holes
- inner guide
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/09—Air conditioning, e.g. de-watering, in pneumatic systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Flow Control Members (AREA)
Abstract
The present invention relates to a kind of equal flow tube of inner guide type and its application, one end of the equal flow tube is blind end, the other end is openend, blast pipe is connected with the openend so that the equal flow tube of distinguished and admirable flow direction, provided with least one discharge air holes so that wind is arranged to outside equal flow tube between openend and blind end in the equal flow tube, provided with the flow deflector being connected with the distinguished and admirable downstream on the inside of the exhaust vent in the equal flow tube, angle between the flow deflector and exhaust vent is more than 0 ° and less than 90 °, and along wind direction, angle between the homogenizing plate and exhaust vent increases successively so that the air output of each exhaust vent is consistent.Air quantity is consistent derived from each exhaust vent of the equal flow tube, can be achieved to spare to wind or heat supply, and it makes that simple, cost is low, and effect is notable.
Description
Technical field
The present invention relates to a kind of wind pipe, and in particular to a kind of equal flow tube of inner guide type and its application.
Background technology
In many occasions or equipment, wind or hot-fluid are conveyed using pipe, moreover, many times to balanced ventilation or
Can the requirement of hot-fluid be higher, in such as flame resistant glass curing, uniformly convey hot-fluid and directly affect glass quality.
Patent such as Application No. 201120561294.7 discloses a kind of equal flow tube of oxygen, and it is from openend to closing
The air vent aperture at end gradually increases.Realized by the increased mode in aperture and uniformly go out oxygen.But in practice, from entering for pipe
Flow direction of the air port along wind, its flow velocity of wind inside pipe wall be from big to small, pressure from small to large, only by change air-out
The size in hole can not realize the pipe consistent requirement of air output everywhere at all, have some holes to there is also the phenomenon of air draught inward, because
This, when requiring strict to air output, can not realize that homogenization is required by art methods.
The original intention that the applicant studies the pipe is applied in flame resistant glass curing, and initial design is
Hot blast in flow process to the right, makes it be discharged from the through hole on pipe from the left side of pipe, and then hot blast flow direction is needed
On the flame resistant glass to be solidified, so as to be heated to glass.At this moment problem appear to is that, the hot blast of the firm exhaust passage in left side, temperature
Height is spent, flow velocity is fast, so results in, solidification is fast on the left of fireproof gum, and it is slow that right side solidifies, and glue surface left and right trunk temperature error is very
Greatly, but glass surface glue, be initially watery liquid, wind speed is excessive just to blow out wrinkle simultaneously also glue from left side glue surface
Right side is blowed to, causes the bondline thickness of left and right also to differ, the small wind of wind speed blows less than left side again.
Therefore, the applicant studied in constantly improvement-experiment-improvement, is finally obtained the equal flow tube of the present invention,
It can not only be applied in glass solidification machine, moreover it is possible to applied in numerous occasions or equipment.
The content of the invention
In view of this, it is an object of the invention to provide a kind of equal flow tube of inner guide type and its application, solve in the prior art
The deficiency of presence.
The purpose of the present invention is to be achieved through the following technical solutions：
A kind of equal flow tube of inner guide type, one end of the equal flow tube is blind end, and the other end is openend, is connected on the openend
Blast pipe is connected to so that provided with least one discharge wind between openend and blind end in the equal flow tube of distinguished and admirable flow direction, the equal flow tube
Hole is so that wind is arranged to outside equal flow tube, and often discharging air holes has multiple exhaust vents, and the equal flow tube is interior to be provided with and exhaust vent inner side
The connection of distinguished and admirable downstream flow deflector, the flow deflector and the exhaust vent are to coordinate one by one, the flow deflector and exhaust vent
Between angle be that angle more than 0 ° and less than 90 °, and between wind direction, the homogenizing plate and exhaust vent increases successively
Made the air output of each exhaust vent consistent.
Further, the multiple exhaust vents often arranged are uniformly arranged in equal flow tube, and the shape of all exhaust vents
Shape and size are.
Further, since first exhaust vent of equal flow tube upper open end, at interval of 150~400mm, the water conservancy diversion
Angle between piece and exhaust vent increases a gradient, and the incrementss of each gradient are 1~5 °.
Further, it is each discharge air holes in, the distance between head and the tail of the two neighboring exhaust vent be 40~
60mm, along wind direction, since first exhaust vent, the angle between the flow deflector and exhaust vent is at interval of 6~8
Hole increases a gradient, and the incrementss of each gradient are 2~4 °.
Further, the exhaust vent be strip exhaust vent, its length be 15~25mm, its width be 0.8~
2mm。
Further, the exhaust vent include rectangular bar hole and connected with distinguished and admirable upstream one end of bar hole it is excellent
The circular hole of arc.
Further, the length of the bar hole be 17~22mm, width be 1~1.5mm, the circular hole it is a diameter of
1.5~2.5mm.
Further, the length of the flow deflector is 13~30mm, and preferably 17~25mm, the width of the homogenizing plate is not small
In the width of bar hole.
Further, the length of the exhaust vent is 19~21mm, wherein, the length of the bar hole is 18~20mm,
Width is 1.1~1.3mm, a diameter of 1.8~2.2mm of the circular hole；
Further, the equal flow tube is square tube, and air holes, and two discharge air holes are discharged in the upper surface of the square tube provided with two
Stagger arrangement is set, in two discharge air holes, horizontal range between two neighboring exhaust vent head and the tail be in each row it is two neighboring go out
The 1/2 of the distance between air holes.
Further, in each discharge air holes, the distance between head and the tail of the two neighboring exhaust vent are 50mm, institute
The angle stated between flow deflector and exhaust vent increases a gradient at interval of 7 holes, and the incrementss of each gradient are 3 °；
Further, in two discharge air holes, the horizontal range between two neighboring exhaust vent head and the tail is 25mm.
Further, in two discharge air holes, along wind direction, distinguished and admirable upstream one end distance of first exhaust vent is
The distance of the openend of flow tube is 50~70mm, distinguished and admirable downstream one end of last exhaust vent apart from equal flow tube blind end away from
From for 20~30mm.
Further, the distance between adjacent two discharges air holes is 3~10mm.
Further, the lower surface of the equal flow tube also is provided with least one discharge air holes.
A kind of application of the equal flow tube of inner guide type, it can be applied in all places blown with pipe or equipment
The present invention at least has the advantages that：
The invention provides a kind of equal flow tube of inner guide type and its application, the present invention is by studying for a long period of time, calculating and countless
Secondary experiment, is finally obtained and meets expected flow tube, and air output thereon everywhere is consistent.Overcome the wind inside pipe wall
Flow velocity be from big to small, pressure from small to large so that the deficiency for causing air output seriously to differ.
The equal flow tube processing and manufacturing is simple, can be random by adjusting the angle of pipe Inner guide piece in the range of whole length
Certain point or a certain section of air-out flow velocity are controlled, it is applicable all places in the way of pipe is blown.Such as the equal flow tube can be answered
For in glass solidification machine, for by heat derives, the equal flow tube to ensure that heat everywhere is consistent, so as to produce performance
Stable, quality is high, the composite fireproof glass of quality better.
Brief description of the drawings
Fig. 1 is the partial schematic diagram of the equal flow tube containing a discharge air holes described in the embodiment of the present invention；
Fig. 2 is the internal structure schematic diagram of the equal flow tube described in the embodiment of the present invention；
Fig. 3 is the part-structure schematic diagram of the equal flow tube described in the embodiment of the present invention；
Fig. 4 is the surface structure schematic diagram of the equal flow tube containing two discharge air holes described in the embodiment of the present invention；
Fig. 5 is the part-structure schematic diagram of the equal flow tube containing two discharge air holes described in the embodiment of the present invention；
Fig. 6 is the signal of the 1st~4 gradient of the angle between the flow deflector described in the embodiment of the present invention and exhaust vent
Figure；
Fig. 7 is the signal of the 5th~7 gradient of the angle between the flow deflector described in the embodiment of the present invention and exhaust vent
Figure；
Fig. 8 is showing for the adopt the angle between flow deflector and exhaust vent the 8th~10 gradient described in the embodiment of the present invention
It is intended to.
1st, equal flow tube, 2, exhaust vent, 3, flow deflector, 9, blast pipe, 11, openend, 12, blind end, 21, bar hole, 22,
Circular hole.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
It is a part of embodiment of the invention, rather than whole embodiments.The detailed description of embodiments of the invention presented below is simultaneously
The scope of claimed invention is not intended to be limiting, but is merely representative of the selected embodiment of the present invention.Based in the present invention
Embodiment, the every other embodiment that this area commonsense method personnel are obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
Embodiment 1
As shown in Fig. 1~2, a kind of equal flow tube of inner guide type, one end of the equal flow tube 1 is blind end 12, and the other end is opening
End 11, be connected with blast pipe 9 on the openend 11 so that the distinguished and admirable openend 11 flowed in equal flow tube 1, the equal flow tube 1 with
Provided with least one discharge air holes 2 so that wind is arranged to outside equal flow tube 1 between blind end 12, often discharge air holes 2 contains multiple exhaust vents
2。
The flow deflector 3 being connected with the distinguished and admirable downstream of the inner side of exhaust vent 2 is provided with the equal flow tube 1, due to air-out
Hole 2 has certain length in distinguished and admirable direction, and distinguished and admirable downstream is the right side of exhaust vent 2, in the present invention, left and right grade side
To word only with respect to accompanying drawing for；The flow deflector 3 is to coordinate one by one with the exhaust vent 2, the flow deflector 3 and exhaust vent 2
Between angle [alpha] be angle [alpha] more than 0 ° and less than 90 °, and between wind direction, the homogenizing plate and exhaust vent 2 according to
It is secondary to increase so that the air output of each exhaust vent 2 is consistent.The span of the α number of degrees and the minimum number of degrees and the maximum number of degrees will be according to right
Depending on the requirement of air output and equal flow tube 1.
In the present embodiment, the angle between size, shape and flow deflector 3 and exhaust vent 2 that can be by adjusting exhaust vent 2
Degree etc. so that the air output of each exhaust vent 2 is consistent.
Embodiment 2
On the basis of embodiment 1, in order that the air output of each exhaust vent 2 is consistent, flow tube 1 equal for the inner guide type
Further details of restriction has been done, it is specific as follows.
As shown in Figures 1 to 3, the multiple exhaust vents 2 often arranged are uniformly arranged in equal flow tube 1, and all air-out
The shapes and sizes in hole 2, i.e., all exhaust vents 2 the same hole.
Since first exhaust vent 2 of the equal upper open end 11 of flow tube 1, at interval of 200~400mm, the flow deflector 3 with
Angle between exhaust vent 2 increases a gradient, and the incrementss of each gradient are 1~5 °.Specifically, in each discharge air holes 2
In, the distance between head and the tail of the two neighboring exhaust vent 2 N is 40~60mm, and preferably N is 50mm, along wind direction, from
First exhaust vent 2 starts, and the angle between the flow deflector 3 and exhaust vent 2 increases a ladder at interval of 6~8 exhaust vents 2
Degree, increases a gradient, the incrementss of each gradient are 2~4 °, preferably 3 ° preferably by 7 exhaust vents 2.
The exhaust vent 2 includes rectangular bar hole 21 and the major arc shape connected with distinguished and admirable upstream one end of bar hole 21
Circular hole 22, the circular hole 22 setting cause exhaust vent 2 left side, i.e., air intake one end air output increase, enabling more
Uniform export wind.
The length L of the bar hole 21 is 17~22mm, and width B is 1~1.5mm, and the diameter D of the circular hole 22 is 1.5
~2.5mm.Preferably, the length L of the exhaust vent 2 is 19~21mm, wherein, the length M of the bar hole 21 for 18~
20mm, width B are 1.1~1.3mm, and the diameter D of the circular hole 22 is 1.8~2.2mm.
Embodiment 3
On the basis of embodiment 2, as shown in Figures 4 and 5, dotted portion is the flow deflector 3 inside pipe in wherein Fig. 5, outside
Typically it can't see in portion.
The equal flow tube 1 is square tube, and the upper surface of the square tube is set provided with two discharge air holes 2, and the two discharge stagger arrangement of air holes 2
Put, in two discharge air holes 2, the horizontal range between the two neighboring head and the tail of exhaust vent 2 is two neighboring exhaust vent 2 in each row
1/2 or half of the distance between head and the tail, the meaning of the word is：Any one exhaust vent 2 in any one row is respectively provided with
In its former and later two other row between two adjacent exhaust vents 2, e.g., if often arranging two neighboring exhaust vent 2 in embodiment 2
The distance between head and the tail N is 50mm, then in two discharge air holes 2, the horizontal range N between the two neighboring head and the tail of exhaust vent 22For
25mm, for details, reference can be made to the mark in Fig. 5；So set and make it that air output everywhere is evenly in equal flow tube 1
In two discharge air holes 2, along wind direction, distinguished and admirable upstream one end (i.e. high order end) of first exhaust vent 2 away from
From the distance L of openend 11 of equal flow tube 11For 50~70mm, preferably L1For 60mm, the distinguished and admirable downstream one of last exhaust vent 2
It is 20~30mm, preferably L apart from L2 apart from the equal blind end 12 of flow tube 1 to hold (i.e. low order end)2For 25mm or 26mm.
The length of the flow deflector 3 is 17~25mm, and preferably 19~23mm, the width of the homogenizing plate is not less than exhaust vent
2 width.
The distance between adjacent two discharges air holes 2 L3For 3~10mm, such as L3 is 5mm or 6mm.
Embodiment 4
On the basis of embodiment 3, it may be selected also to be provided with least one discharge air holes 2 in the lower surface of the equal flow tube 1, such as
Setting is also provided with two rows, and set-up mode such as embodiment 3 is consistent, then can carry out air-out from both sides up and down.
Embodiment 5
On the basis of embodiment 3, as can be seen from figures 6 to 8, in each discharge air holes 2, the two neighboring exhaust vent 2
The distance between head and the tail N be 50mm, and along wind direction, the 1st to the 7th angle between exhaust vent 2 and flow deflector 3
For 30 °, then angle is 33 ° since the 8th, and angle is 36 since the 15th ing, and 10 gradients are added always, i.e., the
64 angles to the 70th exhaust vent 2 are 57 °.Fig. 6 is the schematic diagram of the 1st~4 gradient, and Fig. 7 is the 5th~7 gradient
Schematic diagram；Fig. 8 is the schematic diagram of the 8th~10 gradient, and each gradient only provides two exhaust vents 2.
In two discharge air holes 2, the horizontal range N between the two neighboring head and the tail of exhaust vent 22For 25mm.
The length L of the exhaust vent 2 is 20.5mm, wherein, the length M of the bar hole 21 is 19mm, and width B is
1.2mm, the diameter D of the circular hole 22 is 2mm；
The length of the flow deflector 3 is 20mm, and the width of the homogenizing plate is 2mm.
In two discharge air holes 2, along wind direction, distinguished and admirable upstream one end (i.e. high order end) of first exhaust vent 2 away from
From the distance L of openend 11 of equal flow tube 11For 60mm, distinguished and admirable downstream one end (i.e. low order end) distance of last exhaust vent 2
The equal blind end 12 of flow tube 1 apart from L2For 26mm.The distance between adjacent two discharges air holes 2 L3For 6mm.
The wind speed of exhaust vent 2 is tested using the equal flow tube 1 in the present embodiment.Specifically, equal flow tube 1 is entered from blast pipe 9
Openend 11 at the meter per second of about 6.6 meter per second of wind speed -6.7, using the split type airspeedometers of TD8901, along pipe range direction, uniformly
15 exhaust vents 2 of selection test its air quantity, and as shown in table 1, the serial number in table 1 is using 3 equal flow tubes 1, by 5 for specific data
Result obtained by secondary test, has two equal flow tubes 1 to test 2 times, and the exhaust vent 2 selected by 2 times is different, but is uniform choosing
Select.
The air output of each test point of table 1
As shown in Table 1, the concrete structure design in the present invention is passed through so that the air output in equal flow tube 1 everywhere is consistent,
Embodiment 6
A kind of flame resistant glass curing, it includes casing, in the casing provided with multilayer be used to placing compound glass (including
Glass plate and fireproof gum) stoving rack；The bottom of every layer of stoving rack is equipped with described in many at all above-mentioned any embodiments
The equal flow tube 1 of inner guide type；The openend 11 of the equal flow tube 1 of inner guide type connects the blast pipe 9 of heat air delivery, then the equal flow tube 1 can be led
Going out heat is used to improve temperature, and army's flow tube can make the heat in stoving rack everywhere consistent, you can uniformly to be heated.
When it is implemented, the exhaust vent 2 of 1~2 row can be respectively provided with the upper surface and lower surface of equal flow tube 1, then can be to equal
The glass of the above and below of flow tube 1 heat simultaneously, more efficient.
Because the preparation of flame resistant glass is very high for the requirement of temperature, it is easy to glass somewhere occur if heating is uneven
Out-of-flatness, situations such as have wrinkle, variable thickness or heave, cause the of poor quality of glass, quality low, and largely effect on its longevity
Life.Moreover, many times, just having started glass indifference, but in use, various problems also occur, influence glass
Quality and life-span.And it is not in then these problems to use the equal flow tube 1 of inner guide type of the invention, it can reach to the uniform of glass
Heating, and wind velocity equal control can be used in the meter per second of 1.6 meter per seconds~1.7 so that the glass effects highly significant of making.
In the present invention, the directive property arrow in accompanying drawing 1,2,5~7 is the flow direction of wind.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.It is all any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of equal flow tube of inner guide type, one end of the equal flow tube is blind end, and the other end is openend, is connected on the openend
There is blast pipe so that provided with least one discharge air holes between openend and blind end in the equal flow tube of distinguished and admirable flow direction, the equal flow tube
So that wind is arranged to outside equal flow tube, often discharging air holes has multiple exhaust vents, it is characterised in that：
Provided with the flow deflector being connected with the distinguished and admirable downstream on the inside of the exhaust vent in the equal flow tube, the flow deflector with it is described
Exhaust vent is coordinates one by one, and the angle between the flow deflector and exhaust vent is more than 0 ° and is less than 90 °, and along distinguished and admirable side
To the angle between the homogenizing plate and exhaust vent increases successively so that the air output of each exhaust vent is consistent.
2. the equal flow tube of inner guide type according to claim 1, it is characterised in that：The multiple exhaust vents often arranged are uniformly arranged
In in equal flow tube, and all exhaust vents shapes and sizes；
Since first exhaust vent of equal flow tube upper open end, at interval of 150~400mm, the flow deflector and exhaust vent it
Between angle increase a gradient, the incrementss of each gradient are 1~5 °.
3. the equal flow tube of inner guide type according to claim 2, it is characterised in that：In each discharge air holes, two neighboring institute
The distance between head and the tail of exhaust vent are stated for 40~60mm, along wind direction, since first exhaust vent, the flow deflector
Angle between exhaust vent increases a gradient at interval of 6~8 holes, and the incrementss of each gradient are 2~4 °.
4. the equal flow tube of inner guide type according to claim 3, it is characterised in that：The exhaust vent is the exhaust vent of strip,
Its length is 15~25mm, and its width is 0.8~2mm.
5. the equal flow tube of inner guide type according to claim 4, it is characterised in that：The exhaust vent includes rectangular bar hole
The circular hole of the major arc shape connected with distinguished and admirable upstream one end with bar hole；
The length of the exhaust vent is 19~21mm, wherein, the length of the bar hole is 18~20mm, width is 1.1~
1.3mm, a diameter of 1.8~2.2mm of the circular hole；
The length of the flow deflector is 13~30mm, and the width of the homogenizing plate is not less than the width of bar hole.
6. the equal flow tube of inner guide type according to claim 5, it is characterised in that：The equal flow tube is square tube, the square tube
Upper surface is set provided with two discharge air holes, and two discharge air holes stagger arrangement, in two discharge air holes, two neighboring exhaust vent head and the tail
Between horizontal range be 1/2 of the distance between two neighboring exhaust vent in each row.
7. the equal flow tube of inner guide type according to claim 6, it is characterised in that：In each discharge air holes, two neighboring institute
The distance between head and the tail of exhaust vent are stated for 50mm, the angle between the flow deflector and exhaust vent is at interval of 7 hole increases by one
Individual gradient, the incrementss of each gradient are 3 °；
In two discharge air holes, the horizontal range between two neighboring exhaust vent head and the tail is 25mm.
8. the equal flow tube of inner guide type according to claim 7, it is characterised in that：In two discharge air holes, along wind direction,
The distance of openend of the distinguished and admirable upstream one end of first exhaust vent apart from equal flow tube is 50~70mm, last exhaust vent
Distinguished and admirable downstream one end is 20~30mm apart from the distance of equal flow tube blind end.
The distance between adjacent two discharges air holes is 3~10mm.
9. the equal flow tube of inner guide type according to claim 8, it is characterised in that：The lower surface of the equal flow tube also is provided with least
One discharge air holes.
10. a kind of application according to the equal flow tube of inner guide type according to any one of claims 1 to 9, it is characterised in that：It can
Applied in all places using pipe as air supply mode or equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731598.5A CN107300086A (en) | 2017-08-23 | 2017-08-23 | A kind of equal flow tube of inner guide type and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731598.5A CN107300086A (en) | 2017-08-23 | 2017-08-23 | A kind of equal flow tube of inner guide type and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107300086A true CN107300086A (en) | 2017-10-27 |
Family
ID=60132494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710731598.5A Pending CN107300086A (en) | 2017-08-23 | 2017-08-23 | A kind of equal flow tube of inner guide type and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107300086A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360737A (en) * | 2019-07-25 | 2019-10-22 | 深圳永胜裕科技有限公司 | Air hose deflector |
| CN110685028A (en) * | 2019-11-05 | 2020-01-14 | 桐乡市衣涟皮草有限公司 | Hot drawing equipment for processing polyester yarns |
| CN113455299A (en) * | 2021-06-30 | 2021-10-01 | 尹晓梅 | Wind speed control device for multilayer shelf of mushroom culture room |
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| CN101149177A (en) * | 2007-10-14 | 2008-03-26 | 中铁二院工程集团有限责任公司 | Ventilating current equalizer |
| US20110180170A1 (en) * | 2010-01-22 | 2011-07-28 | Ke Fibertec A/S | Directional flow-controlled air duct |
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| CN110360737A (en) * | 2019-07-25 | 2019-10-22 | 深圳永胜裕科技有限公司 | Air hose deflector |
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| CN113455299A (en) * | 2021-06-30 | 2021-10-01 | 尹晓梅 | Wind speed control device for multilayer shelf of mushroom culture room |
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Application publication date: 20171027 |