CN207162887U - A kind of streamlined lintel apparatus - Google Patents
A kind of streamlined lintel apparatus Download PDFInfo
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- CN207162887U CN207162887U CN201721163463.5U CN201721163463U CN207162887U CN 207162887 U CN207162887 U CN 207162887U CN 201721163463 U CN201721163463 U CN 201721163463U CN 207162887 U CN207162887 U CN 207162887U
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- lintel
- horizontal segment
- streamlined
- section
- bend loss
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Abstract
It the utility model is related to a kind of streamlined lintel apparatus, including two lintel devices, tabular sleeves and two elbows, described two lintel devices connect with the both ends of tabular sleeves respectively, described two elbows connect with described two lintel devices respectively, and the lintel device includes sequentially connecting the bend loss to connect, contraction section and horizontal segment；The bend loss is the tubulose of bending；The horizontal segment is straight tube；The cross-sectional area of the contraction section gradually reduces from the one end being connected with bend loss to the one end being connected with horizontal segment；The bend loss, contraction section and horizontal segment sequentially arc transition；The end of the bend loss is docked with the elbow, and the end of the horizontal segment is docked with the tabular sleeves.Small to resistance caused by air-flow inside the lintel apparatus of the structure, noise is low, and the occasion that beam or pipeline interlock is passed through suitable for numerous VMC tops.
Description
Technical field
VMC accessories field is the utility model is related to, more particularly to a kind of streamlined lintel apparatus.
Background technology
At present, central VMC is widely used in domestic and international HVAC industry, and most of fresh air pipeline systems are present
The problem of energy consumption is big, noise is high.Therefore, to carry out energy-saving and noise-reducing to it significant.
Lintel apparatus is the pipe fitting commonly used in VMC, is mainly used in the field that top air-supply lintel and pipeline interlock
Close, it can avoid punching house beam, rational transition duct arrangement.Lintel apparatus is mainly by lintel device, flat
Sleeve and 45 ° of rounded bend three parts compositions, middle tabular sleeves are crossed beam length and can voluntarily adjusted.
Lintel device is the important composition part of lintel apparatus, part of the good lintel device of a design for lintel apparatus
The reduction of resistance and noise plays an important roll, and existing lintel device runner lower surface is a plane, and circular entrance point directly impacts
Lintel device lower surface, larger local losses and noise are caused, upper surface surface modeling constraints is few, surface blending not enough light
Sliding, the control and about beam fluency to air-flow are poor, and lintel device both sides have obvious corner angle, and runner is uneven, wind be present
Measure the problem of energy consumption is big, and noise is high.
Utility model content
Based on this, the purpose of this utility model is, there is provided the streamlined lintel apparatus that a kind of resistance is small, noise is low.
A kind of streamlined lintel apparatus, including two lintel devices, tabular sleeves and two elbows, described two lintel devices point
Do not connected with the both ends of tabular sleeves, described two elbows connect with described two lintel devices respectively, the lintel device include according to
Bend loss, contraction section and the horizontal segment that sequence connection connects；The bend loss is the tubulose of bending；The horizontal segment is straight tube；Institute
The cross-sectional area for stating contraction section gradually reduces from the one end being connected with bend loss to the one end being connected with horizontal segment；The bend pipe
Section, contraction section and horizontal segment sequentially smoothly transit；The end of the bend loss is docked with the elbow, the end of the horizontal segment
Docked with the tabular sleeves.Lintel device inner flow passage in the lintel apparatus of the structure flows to shape curved surface for smooth, in it
Portion is small to resistance caused by air-flow, and noise is low, and the occasion that beam or pipeline interlock is passed through suitable for numerous VMC tops.
Further, the value of the radius of curvature of the bend loss is more than or equal to opening diameter and is less than or equal to twice
Opening diameter.Radius of curvature R is bigger, and the severity of vortex and spiral motion in bend pipe can be smaller, and drag losses also can
Reduce, in radius of curvature 4 and opening diameter D relation, when in R ＞ 2D, bend pipe resistance no longer significantly reduces, and the sky occupied
Between it is then excessive, make system pipeline, part and equipment be not easy to arrange, thus using D >=R >=2D it is more suitable.
Further, the external arc in the bend loss section and Inner arc are concentric, and its circular arc number of degrees is 45 °.Bend pipe
Corner circular arc and relative radius of curvature R, bend pipe corner is bigger, and the vortex in pipe is more violent, and resistance is bigger, and uses 45 ° of guarantees
Gas steady and smooth flows into lintel apparatus, reduces the whirlpool that lintel device entrance air-flow separation of flow wall is formed, and eliminates air-flow pair
The direct impact of lintel apparatus bottom surface.
Further, the contraction section surface body is in Fluid Surface.The contraction section of the setting can reduce the resistance of air-flow, subtract
The consumption of few air quantity, increase the fluency of air-flow.
Further, the horizontal segment cross section is round rectangle.The setting is small to the resistance of air-flow.
Further, the horizontal segment is provided with bell socket with one end that the tabular sleeves are docked, its area of section
Less than tabular sleeves area of section.The setting is easy to the installation of lintel device and tabular sleeves and ensures that lintel device and tabular sleeves are close
Envelope.
Further, include multiple undertaking sockets and multiple tabular sleeves, the quantity for accepting socket be equal to tabular sleeves,
The undertaking socket is transversely arranged along horizontal segment opening, and the tabular sleeves are docked one by one with accepting socket.The setting is easy to flat
The processing and manufacturing of flat sleeve.
Further, each accept offers positioning runner on socket, and the tabular sleeves are provided with to be slided with positioning
The slide rail that groove coordinates.Tabular sleeves and the mounted in pairing mode of lintel device are easy in the setting, save the set-up time, improve installation effectiveness.
Further, the cross section of the tabular sleeves is the area of section of round rectangle, its area of section and horizontal segment
It is equal.
Further, it is additionally provided with corrugated flexible hose between elbow and the lintel device.The setting makes making for the lintel apparatus
It is more flexible and changeable with scene.
Compared to prior art, streamlined lintel apparatus described in the utility model, it includes streamlined lintel device, flat
Sleeve and 45 ° of elbows, lintel device inner flow passage flow to shape curved surface for smooth, runner-type line is met the principle of flow velocity gradual change,
Avoid runner from significantly turning round, eliminate the impact of whirlpool and air-flow in lintel apparatus runner, so as to reduce crushing and noise, with
45 ° of rounded bends are used cooperatively, and the occasion that beam or pipeline interlock is passed through suitable for numerous VMC tops.
In order to more fully understand and implement, the utility model is described in detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of streamlined lintel apparatus described in the utility model；
Fig. 2 is the front view of lintel device described in the utility model；
Fig. 3 is the side view of lintel device described in the utility model；
Fig. 4 is the structural representation of bend loss described in the utility model；
Fig. 5 is the structural scheme of mechanism of contraction section described in the utility model；
Fig. 6 is the top view of horizontal segment described in the utility model；
Fig. 7 is the side view of horizontal segment described in the utility model；
Fig. 8 is the front view of horizontal segment described in the utility model；
Fig. 9 is the front view of tabular sleeves described in the utility model；
Figure 10 is the top view of tabular sleeves described in the utility model；
Figure 11 is the structural representation of elbow described in the utility model；
Figure 12 uses schematic diagram for streamlined lintel apparatus described in the utility model.
Embodiment
Referring now to accompanying drawing hereinafter, the utility model is described more fully below, in figure, it is shown that of the present utility model
Embodiment.However, the utility model can be presented as many different forms, and should not be construed as being limited to presented herein
Specific embodiment.Exactly, these embodiments are used to the scope of the utility model being communicated to those skilled in the art.
Unless otherwise defined, otherwise, term (including technical and scientific terms) used herein is interpreted as
With the meaning identical meaning being generally understood with the technical staff in the field belonging to the utility model.Moreover, it will be appreciated that
, term used herein is interpreted as having the meaning consistent with the meaning in this specification and association area, and
And it should not be explained by preferable or excessively formal meaning, unless being clearly specified that herein.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " hard straight ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or two
More than individual.
As shown in figure 1, Fig. 1 is the structural representation of streamlined lintel apparatus described in the utility model.A kind of streamlined mistake
Boom device, including two lintel devices 1, tabular sleeves 2 and two elbows 3, described two lintel devices 1 respectively with tabular sleeves 2
Both ends connect, and described two elbows 3 connect with described two lintel devices 1 respectively.
As shown in Figure 2 and Figure 3, Fig. 2 is the front view of lintel device described in the utility model, and Fig. 3 is mistake described in the utility model
The side view of beam device.The lintel device 1 includes sequentially connecting the bend loss 11 to connect, contraction section 12 and horizontal segment 13；It is described curved
Pipeline section 11 is the tubulose of bending；The horizontal segment 13 is straight tube, and in the present embodiment, the cross section of horizontal segment 13 is fillet square
Shape；The cross-sectional area of the contraction section 12 is from the one end being connected with bend loss 11 gradually to one end contracting being connected with horizontal segment 13
It is small；The bend loss 11, contraction section 12 and horizontal segment 13 sequentially smoothly transit；The end of the bend loss 11 and the elbow 3
Docking, the end of the horizontal segment 13 is docked with the tabular sleeves 2.The inside stream of lintel device 1 in the lintel apparatus of the structure
Road flows to shape curved surface to be smooth, and small to resistance caused by air-flow inside it, noise is low, is sent suitable for numerous VMC tops
The occasion that lintel or pipeline interlock.
Specifically, as shown in figure 4, Fig. 4 is the structural representation of bend loss described in the utility model.The bend loss 11
Inside and outside tube wall is isocentric circular arc, and the geometrical factor for influenceing bend pipe resistance coefficient and inner flow-line structure mainly has：Bend loss 11
Circular arc number of degrees θ and radius of curvature R, the radius of curvature R of bend loss are radius of curvature corresponding to bend loss center line, radius of curvature
R is bigger, and the severity of vortex and spiral motion in bend pipe can be smaller, and drag losses can also be reduced, when in R ＞ 2D,
Bend pipe resistance no longer significantly reduces, and the space occupied is then excessive, makes system pipeline, part and equipment be not easy to arrange, therefore adopts
It is more suitable with D >=R >=2D, and in the present embodiment, R=D is chosen, D can choose 75mm, 110mm or 160mm, it is necessary to say
Bright is that D value includes but is not limited to the numerical value of the above.
In addition, in the present embodiment, the external arc 11a and Inner arc 11b in the section of bend loss 11 are concentric, its circular arc number of degrees
It is θ=45 °.The circular arc number of degrees θ of bend pipe is bigger, and the vortex in pipe is more violent, and resistance is bigger, and ensure that gas using 45 °
Steady and smooth flows into lintel apparatus, reduces the whirlpool that the entrance air-flow separation of flow wall of lintel device 1 is formed, and eliminates air-flow and lintel is filled
The direct impact in bottom set face.
As shown in figure 5, Fig. 5 is the structural scheme of mechanism of contraction section described in the utility model.The surface body of contraction section 12 is in
Fluid Surface, the contraction section 12 of the setting can reduce the resistance of air-flow, reduce the consumption of air quantity, increase the fluency of air-flow.
In the present embodiment, the contraction section 12 and the section of the butt end of bend loss 11 are circular cross-section, with the butt end of horizontal segment 13
Section be round rectangle, a height of δ 1 of the round rectangle, the tangent line of circular cross-section and the radial distance on round rectangle base are δ
4, as δ 4=1/2 δ 1, lintel device contraction section lower surface surface blending smooth degree is optimal, and lintel device water passage surface is in fluid light
Sliding curved surface.
As shown in Fig. 6, Fig. 7 and Fig. 8, Fig. 6 is the top view of horizontal segment described in the utility model；Fig. 7 is the utility model
The side view of the horizontal segment；Fig. 8 is the front view of horizontal segment described in the utility model.The horizontal segment 13 and the flat set
One end of the docking of cylinder 2 is provided with bell socket 4, and its area of section is less than tabular sleeves area of section.The length of horizontal segment 13 is
L2, L2It can be adjusted because of different installation environments, the height of horizontal segment 13 is δ 1, and δ 1 is determined by the floor height and furred ceiling in house, is typically taken
δ 1=25~30mm, the width of horizontal segment 13 is L4, and L4 is determined by the area of section size of horizontal segment.Preferably, include
Multiple undertaking sockets 4 and multiple tabular sleeves 2, the quantity for accepting socket 11 are equal to tabular sleeves 2, and the socket 4 of accepting is along water
Flat section 13 be open it is transversely arranged, the tabular sleeves 2 with accept socket 4 dock one by one.The processing of tabular sleeves 2 is easy in the setting
Manufacture.
As shown in figure 9, Fig. 9 is the front view of tabular sleeves described in the utility model.Each accept opens up on socket 4
There is positioning runner 41, the tabular sleeves 2 are provided with the slide rail 21 coordinated with sliding 41 grooves of positioning.Tabular sleeves 2 are easy in the setting
With the mounted in pairing mode of lintel device 1, the set-up time is saved, improves installation effectiveness.The width of positioning runner 41 takes δ 2=3~5mm.Positioning
The width of slide rail 21 is δ 3, and δ 3 is mutually matched with the width δ 2 of chute 21, general δ 3=δ 2+ (1~3) mm.
As shown in Figure 9 and Figure 10, Figure 10 is the top view of tabular sleeves described in the utility model.The tabular sleeves 2
Cross section is round rectangle, and its area of section is equal with the area of section of horizontal segment 13, and its length is L3, and L3 can be according to different
Deck-siding and space need to be cut.
Corrugated flexible hose 5 is additionally provided between the elbow 3 and lintel device 1, adjustable length is used between elbow 3 and lintel device 1
Flexible pipe 5 connect, appropriate regulation can be carried out according to different installation environment selections.As shown in figure 11, Figure 11 is that this practicality is new
The structural representation of elbow described in type.The design method of the elbow 3 is identical with the bend loss 11 of lintel device 1, using inside and outside
Concentric camber design, processing thicken to increase the intensity of pipe to the thickness of pipe wall at the both ends of elbow 3, outside sets boss, so as to
In installation and removal.
As shown in figure 12, Figure 12 uses schematic diagram for streamlined lintel apparatus described in the utility model.When in use, institute
State crossing beam length and the different width of house beam 7 being adapted to according to actual use setting work for tabular sleeves 2, and the lintel
Due to being connected by corrugated flexible hose 5 between device 1 and elbow 3, distance therebetween can also be adapted to different installations
Space.A kind of design parameter is given below, the utility model is applied in fresh air main ventilation 6 a diameter of 160mm of pipeline, the mistake
The wall thickness of beam device 1 is 3mm, and the radius of curvature of bend loss 11 is 160mm, and corner is 45 °, the circular cross-section of contraction section 12 it is a diameter of
160mm, the length L4=317mm of round rectangle, height δ 1=30mm, the tangent line of circular cross-section and the radial direction on round rectangle base
The axial distance L1=104mm in distance δ 4=15mm, circular cross-section and round rectangle section, the length L2=of horizontal segment 13
20mm, the width δ 2=5mm of chute 41.
The wall thickness of flat tube sleeve 2 is 2mm, length L3=330mm, the width δ 3=2mm of slide rail 21.The section circle of 45 ° of elbows 3
A diameter of 160mm, wall thickness 2mm, radius of curvature 160mm, the corner of bend loss 11 are 45 °.The length of corrugated flexible hose 5 is 266mm.Outside
Portion's fixture uses pipe clamp, for reference only herein, in the prior art existing a variety of fixed forms.
Compared to prior art, streamlined lintel apparatus described in the utility model, it includes streamlined lintel device, flat
Sleeve and 45 ° of elbows, lintel device inner flow passage flow to shape curved surface for smooth, runner-type line is met the principle of flow velocity gradual change,
Avoid runner from significantly turning round, eliminate the impact of whirlpool and air-flow in lintel apparatus runner, so as to reduce crushing and noise, with
45 ° of rounded bends are used cooperatively, and the occasion that beam or pipeline interlock is passed through suitable for numerous VMC tops.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.
Claims (10)
1. a kind of streamlined lintel apparatus, including two lintel devices, tabular sleeves and two elbows, described two lintel device difference
Connected with the both ends of tabular sleeves, described two elbows connect with described two lintel devices respectively, it is characterised in that：The lintel
Device includes sequentially connecting the bend loss to connect, contraction section and horizontal segment；The bend loss is the tubulose of bending；The horizontal segment is
Straight tube；The cross-sectional area of the contraction section gradually reduces from the one end being connected with bend loss to the one end being connected with horizontal segment；Institute
State bend loss, contraction section and horizontal segment sequentially arc transition；The end of the bend loss is docked with the elbow, the horizontal segment
End docked with the tabular sleeves.
2. streamlined lintel apparatus according to claim 1, it is characterised in that：The value of the radius of curvature of the bend loss
It is less than or equal to twice of opening diameter more than or equal to opening diameter.
3. streamlined lintel apparatus according to claim 2, it is characterised in that：The external arc in the bend loss section and interior
Circular arc is concentric, and its circular arc number of degrees is 45 °.
4. streamlined lintel apparatus according to claim 3, it is characterised in that：The contraction section surface body is bent in fluid
Face.
5. streamlined lintel apparatus according to claim 4, it is characterised in that：The horizontal segment cross section is fillet square
Shape.
6. streamlined lintel apparatus according to claim 5, it is characterised in that：The horizontal segment and the tabular sleeves pair
The one end connect is provided with bell socket, and its area of section is less than tabular sleeves area of section.
7. streamlined lintel apparatus according to claim 6, it is characterised in that：Include multiple undertaking sockets and multiple flat
Flat sleeve, the quantity for accepting socket are equal to tabular sleeves, and the undertaking socket is transversely arranged along horizontal segment opening, the flat set
Cylinder docks one by one with accepting socket.
8. streamlined lintel apparatus according to claim 7, it is characterised in that：It is fixed to be offered on each undertaking socket
Position chute, the tabular sleeves are provided with the slide rail coordinated with positioning runner.
9. streamlined lintel apparatus according to claim 8, it is characterised in that：The cross section of the tabular sleeves is fillet
Rectangle, its area of section are equal with the area of section of horizontal segment.
10. streamlined lintel apparatus according to claim 9, it is characterised in that：Also set between elbow and the lintel device
It is equipped with corrugated flexible hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163463.5U CN207162887U (en) | 2017-09-12 | 2017-09-12 | A kind of streamlined lintel apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163463.5U CN207162887U (en) | 2017-09-12 | 2017-09-12 | A kind of streamlined lintel apparatus |
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| Publication Number | Publication Date |
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| CN207162887U true CN207162887U (en) | 2018-03-30 |
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| CN201721163463.5U Active CN207162887U (en) | 2017-09-12 | 2017-09-12 | A kind of streamlined lintel apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388537A (en) * | 2017-09-12 | 2017-11-24 | 广东绿岛风室内空气系统科技有限公司 | A kind of streamlined lintel apparatus |
-
2017
- 2017-09-12 CN CN201721163463.5U patent/CN207162887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388537A (en) * | 2017-09-12 | 2017-11-24 | 广东绿岛风室内空气系统科技有限公司 | A kind of streamlined lintel apparatus |
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