CN206803440U - Airduct and air treatment system - Google Patents
Airduct and air treatment system Download PDFInfo
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- CN206803440U CN206803440U CN201720184765.4U CN201720184765U CN206803440U CN 206803440 U CN206803440 U CN 206803440U CN 201720184765 U CN201720184765 U CN 201720184765U CN 206803440 U CN206803440 U CN 206803440U
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- airduct
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Abstract
A kind of airduct and the air treatment system including the airduct, the air duct structure is simple, and air-supply is uniform, and wind noise is low.The airduct includes the body for airflow, one end of the body is air flow inlet, multiple air stream outlets are provided with the length direction of the body, each air flow outlet is provided with diversion division, the diversion division has the current path for making air-flow be circulated along the direction with the body at an angle.The air treatment system includes the airduct.
Description
Technical field
It the utility model is related to airduct and the air treatment system including the airduct.
Background technology
In existing air treatment system, air outlet and return air inlet are hung and are located at room respectively generally in the form of grid
Sky plate in or be embedded in the facade wall in room, this set form causes in room because air-supply concentrates on certain point
Uneven air, in addition, difficulty of construction is also big.
To improve the uniformity of air-supply and reducing the difficulty of construction, there is a kind of air-treatment system as shown in Figure 10 in the past
System, it can control the flow direction of room air, and the air treatment system includes blower fan 3X, ajutage 7X and backwind tube 4X, ajutage
7X and backwind tube 4X is installed on the top surface in room and the intersection of facade, and the outdoor fresh air air inlet 1X set on blower fan 3X is with sending
Airduct 7X is connected, and the exhaust outlet 2X set on blower fan 3X is connected with backwind tube 4X, and more than one is provided with ajutage
Air outlet 6X, the return air inlet 5X corresponding with air outlet 6X is provided with backwind tube 4X (referring for example to patent document 1).
Patent document 1：Chinese patent CN201072206Y
Though above-mentioned air treatment system is advantageous to improve the air-supply uniformity in room, existed by blower fan 3X driving air
With tube wall collision friction when ajutage 7X high speeds flow, noise can be produced, moreover, air flow direction at air outlet 6X is sent out
It is raw to change, very big noise can be also produced because of collision, so as to influence the comfort of user.
Utility model content
Precisely in order to solving the above problems and completing, the purpose of this utility model is to provide a kind of knot the utility model
The airduct that structure is simple, air-supply is uniform and wind noise is low and the air treatment system including the airduct.
In order to realize the purpose, the airduct of the utility model first aspect includes the body for airflow, the pipe
One end of body is air flow inlet, and multiple air stream outlets are provided with the length direction of the body, wherein, in each air-flow
Exit is provided with diversion division, and the diversion division has the air-flow for making air-flow be circulated along the direction with the body at an angle
Path.
According to the airduct of the utility model first aspect, multiple air stream outlet balanced ventilations can be utilized, diversion division can be utilized
Guiding air-flow from airduct flow out when direction, reduce the outflow noise of air-flow.
The airduct of the utility model second aspect is the water conservancy diversion on the basis of the airduct of the utility model first aspect
Portion has a current path for making air-flow be circulated along the direction vertical with the body, or with making air-flow along relative to described
The current path of the inclined direction circulation of body.
According to the airduct of the utility model second aspect, by the airduct for selecting that there is suitable diversion division as needed,
Contribute to the comfort of lifting user, especially, having in the diversion division of airduct makes air-flow along relative to the inclined side of body
To circulation current path when, the resistance that air-flow is subject to when flowing to guide duct from air stream outlet is small, advantageously reduce air steering
Caused noise.
The airduct of the utility model third aspect is the water conservancy diversion on the basis of the airduct of the utility model first aspect
Portion is guide duct or deflector.
According to the airduct of the utility model third aspect, diversion division can be formed with simple structure, help to reduce airduct
Manufacturing cost.
The airduct of the utility model fourth aspect is the water conservancy diversion on the basis of the airduct of the utility model third aspect
Portion is guide duct, and the guide duct is any of increaser, Venturi tube and bend pipe.
According to the airduct of the utility model fourth aspect, by the airduct for selecting that there is suitable diversion division as needed,
Contribute to the comfort of lifting user.
The airduct of the aspect of the utility model the 5th is the wind-guiding on the basis of the airduct of the utility model third aspect
The end of pipe is inclined-plane.
According to the airduct of the aspect of the utility model the 5th, contribute to the diffusion of air-flow.
The airduct of the aspect of the utility model the 6th be on the basis of the airduct of the utility model first aspect, it is each described to lead
The direction of the current path in stream portion is different.
According to the airduct of the aspect of the utility model the 6th, by making each diversion division blow towards different directions, help to carry
Rise the uniformity of air-supply.
The airduct of the aspect of the utility model the 7th is the water conservancy diversion on the basis of the airduct of the utility model first aspect
At least a portion in portion is arranged on the inside of the body.
According to the airduct of the aspect of the utility model the 7th, noise caused by air steering can be made to stay in body, be advantageous to
Reduce noise.
The airduct of the utility model eighth aspect is the body on the basis of the airduct of the utility model first aspect
On the apertures of multiple air stream outlets become larger along air-flow direction of advance, and/or, the caliber of the body is along before air-flow
Enter direction to taper into.
According to the airduct of the utility model eighth aspect, the air quantity of each air stream outlet on tube length direction can be reduced because of gas
The flow velocity of stream is gradually decayed in body and produces difference, makes air-supply on tube length direction evenly.
The airduct of the aspect of the utility model the 9th is on the basis of the airduct of the utility model first aspect, in the pipe
Air stream outlet described in multiple row is provided with body, air stream outlet described in multiple row is staggered.
According to the airduct of the aspect of the utility model the 9th, be advantageous to the uniformity that lifting is blown.
The airduct of the aspect of the utility model the tenth is the water conservancy diversion on the basis of the airduct of the utility model first aspect
Portion is shaped in the body, or by clamping, welding, be bonded, the mode that any of is spirally connected is connected with the body.
According to the airduct of the aspect of the utility model the tenth, by selecting suitable mode to set diversion division as needed, have
Help be lifted the maintenance convenience of airduct.
The airduct of the one side of the utility model the tenth be on the basis of the airduct of the utility model first aspect, it is described to lead
Stream portion is the guide duct that endcapped and body are provided with multiple apertures.
According to the airduct of the one side of the utility model the tenth, be advantageous to the uniformity that lifting is blown.
In order to realize the purpose, the air treatment system of the aspect of the utility model the 12nd includes the utility model first
Airduct of the aspect into the tenth one side described in either side.
Utility model effect
According to airduct of the present utility model and the air treatment system including the airduct, multiple air stream outlets are provided with,
And each air flow outlet is provided with diversion division, the diversion division, which has, makes air-flow be circulated along the direction with body at an angle
Current path, accordingly, it is capable to using multiple air stream outlet balanced ventilations, can utilize diversion division guide air-flow from airduct flow out when
Direction, reduce the outflow noise of air-flow.
Brief description of the drawings
Fig. 1 is the partial schematic diagram of the structure for the airduct for representing the utility model embodiment 1.
Fig. 2 is the partial schematic diagram of the diversion division of the air flow outlet for the airduct for representing the utility model embodiment 1.
Fig. 3 is the partial schematic diagram of the structure for the airduct for representing the utility model embodiment 2.
Fig. 4 A are the partial schematic diagrams of the structure for the airduct for representing the utility model embodiment 3.
Fig. 4 B are the partial schematic diagrams of the structure of the airduct for the variation for representing the utility model embodiment 3.
Fig. 4 C are the partial schematic diagrams of the structure of the airduct for another variation for representing the utility model embodiment 3.
Fig. 5 A are the partial schematic diagrams of the structure for the airduct for representing the utility model embodiment 4.
Fig. 5 B are the partial schematic diagrams of the structure of the airduct for the variation for representing the utility model embodiment 4.
Fig. 6 is the partial schematic diagram of the structure for the airduct for representing the utility model embodiment 5.
Fig. 7 A are the partial schematic diagrams of the structure for the airduct for representing the utility model embodiment 6.
Fig. 7 B are the partial schematic diagrams of the structure of the airduct for the variation for representing the utility model embodiment 6.
Fig. 8 is the partial schematic diagram of the structure for the airduct for representing the utility model embodiment 7.
Fig. 9 is the partial schematic diagram of the structure of the airduct for the variation for representing the utility model embodiment 1~5,7.
Figure 10 is the stereogram for the structure for schematically illustrating existing air treatment system.
(symbol description)
1st, 1A, 1B, 1B ', 1B ", 1C, 1C ', 1D, 1E, 1E '~1F airducts
10th, 10A, 10C, 10D, 10F body
101st, 101D, 101E, 101E ' air flow inlet
102nd, 102B, 102C, 102D, 102E, 102E ' air stream outlet
103rd, 103A, 103B, 103C, 103D, 103E, 103E ', 103F diversion divisions
104 sound absorbers
1X outdoor fresh air air inlets
2X exhaust outlets
3X blower fans
4X backwind tubes
5X return air inlets
6X air outlets
7X ajutages
Embodiment
Below, the airduct of the utility model embodiment is illustrated with reference to accompanying drawing.
<Embodiment 1>
Referring to Fig. 1 and Fig. 2, the structure of the airduct 1 of the utility model embodiment 1 is illustrated, wherein, Fig. 1
It is the partial schematic diagram of the structure for the airduct 1 for representing the utility model embodiment 1, Fig. 2 is to represent the utility model embodiment party
The partial schematic diagram of diversion division 103 at the air stream outlet 102 of the airduct 1 of formula 1.
The airduct 1 of present embodiment includes the body 10 for airflow, and one end of the body 10 is air flow inlet 101,
Multiple air stream outlets 102 are provided with the length direction of the body 10, also, water conservancy diversion is provided with each air stream outlet 102
Portion 103, the diversion division 103 have the current path for making air-flow be circulated along the direction with body 10 at an angle.
In the present embodiment, body 10 is indentical tube, and internal diameter is not on its length direction (being left and right directions in Fig. 1)
Become.Certainly, it is not limited to this, body 10 can also be the reduced pipe that caliber is gradually reduced with remote air flow inlet 101,
To avoid the flow velocity of air-flow from gradually decaying in body 10.
In addition, in the present embodiment, diversion division 103 is perpendicular to the guide duct of the setting of body 10, and the guide duct is whole
Body is arranged on the straight tube outside body 10, and it, which has, makes air-flow lead to along the air-flow to be circulated with the generally perpendicular direction of body 10
Road.
Herein, the cross section of guide duct for example can be any of rectangle, circle, ellipse and star, the wind-guiding
Guan Keyu bodys 10 be integrally formed or by clamping, welding, be bonded and the mode that any of is spirally connected is fixedly connected on
At the air stream outlet 102 of body 10.
In addition, in the present embodiment, the direction of advance of the apertures of multiple air stream outlets 102 on body 10 along air-flow
(being from left to right in Fig. 1) gradually increases, and the caliber of corresponding guide duct also gradually increases.Herein, multiple air stream outlets 102
Aperture can be continuously increase or segmentation increase.
In addition, in the present embodiment, sound absorber 104 is also covered with the end of guide duct.It is, of course, also possible in body
10 inwall, the inwall of guide duct stick sound absorber, further to reduce noise.
According to airduct 1 of the present utility model, simple in construction, easy processing.
In addition, according to airduct 1 of the present utility model, multiple air stream outlets 102 are provided with the length direction of body 10,
Therefore, air-flow can uniformly flow out on the length direction of body 10.
In addition, according to airduct 1 of the present utility model, diversion division 103 is provided with each air stream outlet 102, the diversion division
103 have the current path for making air-flow be circulated along the direction with body 10 at an angle, accordingly, it is capable to utilize diversion division 103
Guiding air-flow from airduct 10 flow out when direction, reduce the outflow noise of air-flow.
In addition, according to airduct 1 of the present utility model, the aperture of multiple air stream outlets 102 and the pipe of corresponding guide duct
Direction of advance of the footpath along air-flow gradually increases, accordingly, it is capable to reduce the air quantity of each air stream outlet 102 on the length direction of body 10 because of gas
The flow velocity of stream is gradually decayed in body 10 and produces difference, makes air-supply on the length direction of body 10 evenly.
In addition, according to airduct 1 of the present utility model, sound absorber 104 is provided with the distal hood of guide duct, accordingly, it is capable to enter one
Step reduces the outflow noise of air-flow.
<Embodiment 2>
Referring to Fig. 3, the airduct 1A of the utility model embodiment 2 structure is illustrated, wherein, Fig. 3 is table
Show the partial schematic diagram of the airduct 1A of the utility model embodiment 2 structure.
The airduct 1A of present embodiment structure and the airduct 1 of above-mentioned embodiment are essentially identical, with above-mentioned embodiment
The difference of airduct 1 be diversion division.
In the present embodiment, the diversion division 103A for being arranged on body 10A air flow outlet is end leading for inclined-plane
Airduct.
According to the airduct 1A of present embodiment, it can play and be imitated with the essentially identical technology of the airduct 1 of above-mentioned embodiment 1
Fruit.
In addition, according to the airduct 1A of present embodiment, the end of guide duct is inclined-plane, therefore, contributes to the diffusion of air-flow.
<Embodiment 3 and its variation>
Referring to Fig. 4 A~4C, to airduct 1B, 1B of the utility model embodiment 3 and its variation ', 1B " knot
Structure illustrates, wherein, Fig. 4 A are the partial schematic diagrams of the structure for the airduct 1B for representing the utility model embodiment 3, Fig. 4 B
It is the partial schematic diagram of the airduct 1B ' for the variation for representing the utility model embodiment 3 structure, Fig. 4 C are to represent this practicality
The partial schematic diagram of the airduct 1B " of another variation of new embodiment 3 structure.
The airduct 1B of present embodiment structure and the airduct 1 of above-mentioned embodiment are essentially identical, with above-mentioned embodiment
Airduct 1 difference be form diversion division guide duct shape.
In the present embodiment, as shown in Figure 4 A, as the diversion division 103B at air stream outlet 102B, the middle part of guide duct
There is one section of caliber contraction flow region, the flow direction of the caliber of guide duct along air consecutive variations in a manner of first reducing and increase again, closely
It is similar to the structure of Venturi tube.But, it is not limited to this, as shown in Figure 4 B, guide duct can also be formed as caliber along air
Flow direction becomes larger, or as shown in Figure 4 C, guide duct can also be formed as the caliber of the caliber more than both ends at middle part, and
Flow direction of the caliber along air is in step variation, is similar to the structure of muffler.
According to airduct 1B, 1B of present embodiment and its variation ', 1B ", the airduct 1 with above-mentioned embodiment 1 can be played
Essentially identical technique effect.
In addition, according to the airduct 1B of present embodiment, there is one section of caliber contraction flow region in the middle part of guide duct, therefore, be advantageous to
Lift the flow velocity of air-flow.
In addition, according to the airduct 1B ' of modified embodiment of the present embodiment, be advantageous to air diffusion, disperse the air-flow of outflow
Uniformly.
In addition, according to the airduct 1B " of another variation of present embodiment, noise is advantageously reduced.
<Embodiment 4 and its variation>
Referring to Fig. 5 A, Fig. 5 B, to airduct 1C, 1C of the utility model embodiment 4 ' structure illustrate, its
In, Fig. 5 A are the partial schematic diagrams of the structure for the airduct 1C for representing the utility model embodiment 4, and Fig. 5 B are to represent that this practicality is new
The partial schematic diagram of the airduct 1C ' of the variation of type embodiment 4 structure.
The airduct 1C of present embodiment structure and the airduct 1 of above-mentioned embodiment are essentially identical, with above-mentioned embodiment
The difference of airduct 1 be diversion division.
In the present embodiment, as shown in Figure 5A, it is leading for same footpath to be arranged on the diversion division 103C at air stream outlet 102C
Airduct, a part for the guide duct are arranged on body 10C inside.But, it is not limited to this, as shown in Figure 5 B, guide duct
Flow direction of the caliber along air consecutive variations in a manner of first reducing and increase again can also be formed as.
According to airduct 1C, 1C of present embodiment and its variation ', it can play basic with the airduct 1 of above-mentioned embodiment 1
Identical technique effect.
In addition, airduct 1C, 1C according to present embodiment and its variation ', by the way that a part for guide duct is arranged on
The inside of body, noise caused by air steering can be made to stay in body, advantageously reduce noise.
<Embodiment 5>
Referring to Fig. 6, the airduct 1D of the utility model embodiment 5 structure is illustrated, wherein, Fig. 6 is table
Show the partial schematic diagram of the airduct 1D of the utility model embodiment 5 structure.
The airduct 1D of present embodiment structure and the airduct 1 of above-mentioned embodiment are essentially identical, with above-mentioned embodiment
The difference of airduct 1 be diversion division.
In the present embodiment, the diversion division 103D at air stream outlet 102D, which has, makes air-flow along relative to body 10D
The current path of inclined direction circulation.Herein, as shown in fig. 6, as diversion division 103D, there is provided the direction of advance along air-flow
Inclined guide duct.
According to the airduct D of present embodiment, the technique effect essentially identical with the airduct 1 of above-mentioned embodiment 1 can be played.
In addition, according to the airduct D of present embodiment and its variation, air-flow from air stream outlet 102D flow to guide duct when by
The resistance arrived is small, advantageously reduces noise caused by air steering.
<Embodiment 6 and its variation>
Referring to Fig. 7 A, Fig. 7 B, to airduct 1E, 1E of the utility model embodiment 6 and its variation ' structure enter
Row explanation, wherein, Fig. 7 A are the partial schematic diagrams of the structure for the airduct 1E for representing the utility model embodiment 6, and Fig. 7 B are tables
Show the partial schematic diagram of the airduct 1E ' of the variation of the utility model embodiment 6 structure.
The airduct 1E of present embodiment structure and the airduct 1 of above-mentioned embodiment are essentially identical, with above-mentioned embodiment
The difference of airduct 1 be diversion division.
In the present embodiment, as shown in Figure 7 A, the diversion division 103E being arranged at air stream outlet 102E is deflector, should
Deflector is the curved slab for having certain radian.Herein, in fig. 7, deflector is arranged on air stream outlet 102E close air-flow
Entrance 101E side, but be not limited thereto, as shown in Figure 7 B, the deflector as diversion division 103E ' may also be arranged on gas
Flow export 102E ' remote air flow inlet 101E ' side.
According to airduct E, E of present embodiment and its variation ', it can play and 1 basic phase of the airduct of above-mentioned embodiment 1
Same technique effect.
In addition, airduct E, E according to present embodiment and its variation ', deflector structure is simple, can with body one into
Type, also can by clamping, welding, be bonded and be spirally connected in any mode be fixedly connected on air flow outlet.
<Embodiment 7>
Referring to Fig. 8, the airduct 1F of the utility model embodiment 7 structure is illustrated, wherein, Fig. 8 is table
Show the partial schematic diagram of the airduct 1F of the utility model embodiment 7 structure.
The airduct 1F of present embodiment structure and the airduct 1 of above-mentioned embodiment are essentially identical, with above-mentioned embodiment
The difference of airduct 1 be diversion division.
In the present embodiment, as shown in figure 8, being provided with multiple row air stream outlet on airduct 1F body 10F, these row
Air stream outlet it is staggered (this, which is in body 10F circumference, staggers, but can also stagger on body 10F length direction or
Person staggers simultaneously in body 10F circumference and length direction), also, each air flow outlet is provided with diversion division 103F, should
Diversion division 103F has the current path for making air-flow be circulated along the direction with body 10F at an angle.
In the present embodiment, diversion division 103F includes the first guide duct 103F1 and the first guide duct 103F2, and first leads
Airduct 103F1 and the first guide duct 103F2 direction are different.Herein, the first guide duct 103F1 and the first guide duct 103F2 are equal
Tilted relative to body 10F.
According to the airduct F of present embodiment, the technique effect essentially identical with the airduct 1 of above-mentioned embodiment 1 can be played.
In addition, according to the airduct F of present embodiment, when airduct hangs the middle part for being located at room top, the first guide duct
103F1 and the first guide duct 103F2 is respectively facing two Lateral supplies of airduct, and air-supply is uniform.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that specific implementation of the present utility model is not
Limited by above-mentioned embodiment.
For example, in above-mentioned embodiment 1~5,7, as shown in figure 9, can be also provided with using endcapped and body more
The guide duct of individual aperture.
In addition, in the above-described embodiment, airduct can be integrally formed, can also be according to actual installation demand by multistage pipe
Part is spliced, and can also be multiple-segment telescopic tube, and flexibility is good, also, the end of airduct can both be closed, and can also add and set
Put air stream outlet.
In addition, in the above-described embodiment, it be able to will be managed according to actual installation demand or the decoration style of cooperation installing space
The section of part is formed as the shape that any of circle, ellipse, rectangle, trapezoidal, triangle and sector are easy to processing, and
And the shape of air stream outlet can be any of circular, oval, waveform and rectangle.
In addition, in above-mentioned embodiment 7, air stream outlet corresponding to the first guide duct 103F1 and the first guide duct 103F2
It can be single-row air stream outlet or staggered multiple row air stream outlet.
In addition, the airduct of above-mentioned embodiment 1~7 can be hung and set, hang or be embedded in room according to actual installation demand
The position being arbitrarily adapted to fit.
In addition, use above-mentioned implementation in air treatment system (such as ajutage 7X of the air treatment system shown in Figure 10)
During the airduct of mode 1~7, air-supply uniformity is good, and easy for construction, installation site and mode are flexible, and do not destroy the finishing in room
Associative perception.
Claims (12)
1. a kind of airduct, including the body for airflow, one end of the body is air flow inlet, in the length of the body
Multiple air stream outlets are provided with direction, it is characterised in that
Each air flow outlet is provided with diversion division, the diversion division have make air-flow along with the body at an angle
Direction circulation current path.
2. airduct as claimed in claim 1, it is characterised in that
The diversion division has a current path for making air-flow be circulated along the direction vertical with the body, or with making air-flow edge
The current path relative to the inclined direction circulation of the body.
3. airduct as claimed in claim 1, it is characterised in that
The diversion division is guide duct or deflector.
4. airduct as claimed in claim 3, it is characterised in that
The diversion division is guide duct, and the guide duct is any of increaser, Venturi tube and bend pipe.
5. airduct as claimed in claim 3, it is characterised in that
The end of the guide duct is inclined-plane.
6. airduct as claimed in claim 1, it is characterised in that
The direction of the current path of each diversion division is different.
7. airduct as claimed in claim 1, it is characterised in that
At least a portion of the diversion division is arranged on the inside of the body.
8. airduct as claimed in claim 1, it is characterised in that
The aperture of multiple air stream outlets on the body becomes larger along air-flow direction of advance, and/or, the body
Caliber tapers into along air-flow direction of advance.
9. airduct as claimed in claim 1, it is characterised in that
Air stream outlet described in multiple row is provided with the body,
Air stream outlet is staggered described in multiple row.
10. airduct as claimed in claim 1, it is characterised in that
The diversion division is shaped in the body, or by clamping, welding, be bonded, any of be spirally connected mode and institute
State body connection.
11. airduct as claimed in claim 1, it is characterised in that
The diversion division is the guide duct that endcapped and body are provided with multiple apertures.
12. a kind of air treatment system, it is characterised in that including the airduct any one of claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720184765.4U CN206803440U (en) | 2017-02-28 | 2017-02-28 | Airduct and air treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720184765.4U CN206803440U (en) | 2017-02-28 | 2017-02-28 | Airduct and air treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206803440U true CN206803440U (en) | 2017-12-26 |
Family
ID=60729080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720184765.4U Active CN206803440U (en) | 2017-02-28 | 2017-02-28 | Airduct and air treatment system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206803440U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019108993A (en) * | 2017-12-15 | 2019-07-04 | 大和ハウス工業株式会社 | Ventilation structure |
| CN112146256A (en) * | 2020-08-13 | 2020-12-29 | 浙江纳风净化技术有限公司 | Air pipeline silencing method |
| CN113455299A (en) * | 2021-06-30 | 2021-10-01 | 尹晓梅 | Wind speed control device for multilayer shelf of mushroom culture room |
-
2017
- 2017-02-28 CN CN201720184765.4U patent/CN206803440U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019108993A (en) * | 2017-12-15 | 2019-07-04 | 大和ハウス工業株式会社 | Ventilation structure |
| CN112146256A (en) * | 2020-08-13 | 2020-12-29 | 浙江纳风净化技术有限公司 | Air pipeline silencing method |
| 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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