CN2709847Y - Duct for air conditioner and ventilation - Google Patents
Duct for air conditioner and ventilation Download PDFInfo
- Publication number
- CN2709847Y CN2709847Y CN 200420050903 CN200420050903U CN2709847Y CN 2709847 Y CN2709847 Y CN 2709847Y CN 200420050903 CN200420050903 CN 200420050903 CN 200420050903 U CN200420050903 U CN 200420050903U CN 2709847 Y CN2709847 Y CN 2709847Y
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- CN
- China
- Prior art keywords
- duct
- airduct
- outer tube
- wall
- conditioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a duct for air conditioner and ventilation. The duct is made up of two layers of ducts, an inner duct and an outer duct, which are coaxially sheathed. The duct wall of the inner duct is a smooth wall surface, the duct wall of the outer duct is corrugated along the duct axle direction, and the outer surface of the duct wall of the inner duct is fixedly connected with the inner surface of the duct wall of the outer duct. The material of the duct body of the utility model is polyethylene plastic, the duct can be curved and the installation is convenient; the anti-external pressure strength of the duct body is high, and the duct is suitable for underground duct bank or the duct can be cast in the cement mortar layer; the special structure of the duct body make the duct uneasy to deposit dust, and the duct can be cleaned easily by machines; the anti-pressure strength of the duct is greatly improved because of the corrugated outer duct structure; at the same time the heat-insulating property of the duct is improved, and the external heat-insulating layer is not needed under construction.
Description
Technical field
The utility model relates to a kind of airduct, especially a kind of airduct that is used for air-conditioning and ventilation.
Background technology
At present, be used for pipe and the square tube that the airduct of air-conditioning and ventilation is normally made by aluminium alloy or galvanized steel plain sheet.All there is defective in this airduct aspect a lot: at first,, therefore there is not flexibility because the material of airduct is generally aluminium alloy or galvanized steel plain sheet, can not be crooked, and in the process of installing at the construction field (site), workload is very big; Along with the increase of labor cost, the investment of adopting this airduct to construct will be increasing.Secondly, existing airduct adopts mechanical system that air conditioning wind pipe is cleaned because no flexibility, the unyielding characteristic that material caused causes its cleanablity poor for a long time, but can't reach cleaning thoroughly, is a difficult problem always.Once more, because the material of existing airduct mostly is metal, its heat conductivility is relatively good, airduct is easy to and extraneous generation heat exchange, heat (cold) amount in the pipeline is lost very soon, therefore, existing pipeline need be done insulation usually, and installation cost has further improved again.At last, because the material of airduct is a metal, the difference of different regions underground acid-base value can cause in various degree erosion to airduct, influences the airduct self performance.If select for use the smooth flexible pipe of plastics as airduct, its anti-pressure ability is lower, carry out ground-buried pipe or cast in the cement mortar layer taking other safeguard measures.
In view of above-mentioned many deficiencies, no matter existing airduct all exists problem demanding prompt solution from material or configuration aspects.
The utility model content
Technical problem to be solved in the utility model is, provides a kind of airduct that is used for air-conditioning and ventilation at the deficiencies in the prior art, and the tube wall of this airduct is combined by the two layers of polyethylene plastics, flexible, easy for installation, the outer pressure resistance height, easy to clean, good heat insulating.
The technical problem that the utility model solved is achieved by the following technical solution:
A kind of airduct that is used for air-conditioning and ventilation, this airduct is by interior pipe and coaxial sheathed the forming of the two-layer body of outer tube, inner pipe wall is a hydraulically smooth surface, and outer tube wall axially is corrugated along pipeline, and the outer surface of inner pipe wall is connected with the inner surface of outer tube wall is fixed to one another.
The outer surface of outer tube wall is to the distance between the outer surface of inner pipe wall, that is: the height of ripple is 5-15mm.
Distance between adjacent two the ripple center lines of outer tube wall is 8-15mm.
The ripple cross sectional shape of outer tube wall is rectangle or zigzag or trapezoidal or arc.
In order to guarantee the flexible performance of airduct, harmless, environmental protection again, interior pipe and outer tube are made by vinyon, interior pipe is different with the density of the vinyon that outer tube is adopted, and interior pipe adopts LDPE, and outer tube adopts high-density polyethylene plastics.The material difference of inner and outer pipe, so mechanical performance is also different thereupon, outer effective high density polyethylene (HDPE) has guaranteed the compression strength of airduct, interior effective low density polyethylene (LDPE) has guaranteed the flexible of airduct.But be all vinyon, melt mutually again each other, be easy to produce.
In the heat that is fixedly connected as of pipe and outer tube melt and be connected or a bonding or injection moulding or extruding form.
For flexible and the compression strength that guarantees airduct, so outer tube ripple height must increase with the increase of inner tube diameter.
In sum, the utlity model has following advantage:
1, because its material is a vinyon, therefore flexible, easy for installation;
2, the outer pressure resistance height of body is fit to ground-buried pipe or casts in the cement mortar layer;
3, the special construction of body makes it be difficult for dust stratification, easy-to-use mechanical system cleaning;
4, undulatory outer tube structure makes the good heat insulating of body, need not add external thermal insulation again during construction.
Description of drawings
Fig. 1 is the partial sectional view of the utility model tube wall;
The schematic diagram that Fig. 2 curls and bends for the utility model body.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described in detail.
As shown in Figure 1, be the partial sectional view of the utility model tube wall.As can be known from Fig. 1, the utility model is a kind of airduct 1 that is used for air-conditioning and ventilation, this airduct 1 is by interior pipe 11 and coaxial sheathed the forming of outer tube 12 two-layer bodys, interior pipe 11 tube walls are hydraulically smooth surface, outer tube 12 tube walls axially are corrugated, 121 fixed to one another connections of inner surface of the outer surface 111 of interior pipe 11 tube walls and outer tube 12 tube walls along pipeline.
The outer surface 122 of outer tube 12 tube walls is to the distance between interior pipe 11 outer surface of tube wall 111, that is: the ripple height A is 5-15mm.
Between adjacent two the ripple center lines of outer tube 12 tube walls is 8-15mm apart from B.
In order to guarantee the flexible performance of airduct 1, interior pipe 11 and outer tube 12 are made by vinyon, and the density of the vinyon that adopted of interior pipe 11 and outer tube 12 is different, and interior pipe adopts LDPE, and outer tube adopts high-density polyethylene plastics.The density difference of two kinds of materials, mechanical performance are also different thereupon, and outer effective high density polyethylene (HDPE) has guaranteed the compression strength of airduct, and interior effective low density polyethylene (LDPE) has guaranteed the flexible of airduct.But be all vinyon, melt mutually again each other, be easy to produce.
In pipe 11 and outer tube 12 be fixedly connected as heat and melt and be connected or a bonding or injection moulding or extruding form.
Guarantee the flexible and the compression strength of airduct, therefore, outer tube ripple height increases with the increase of inner tube diameter.
As shown in Figure 2, the schematic diagram that curls and bend for the utility model body.As can be known from Fig. 2, because the inside and outside tube wall material of airduct 1 is vinyon, therefore flexible, even situation that can be as shown in Figure 2 is the same, with airduct 1 knotting, can not influence the work effect of the performance of airduct 1, brought very big convenience to construction and installation.
In conjunction with shown in Figure 1, outer tube 12 tube walls are wavy, and this wavy cross sectional shape can adopt various ways, such as: rectangle, zigzag, trapezoidal, arc or the like, make the outer pressure resistance height of body, are fit to ground-buried pipe or cast in the cement mortar layer.
Undulatory outer tube 12 structures make the good heat insulating of body, need not add external thermal insulation again during construction.
Need to prove at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1, a kind of airduct that is used for air-conditioning and ventilation, it is characterized in that: this airduct is by interior pipe and coaxial sheathed the forming of the two-layer body of outer tube, inner pipe wall is a hydraulically smooth surface, and outer tube wall axially is corrugated along pipeline, and the outer surface of inner pipe wall is connected with the inner surface of outer tube wall is fixed to one another.
2, the airduct that is used for air-conditioning and ventilation according to claim 1 is characterized in that: the outer surface of described outer tube wall is to the distance between the outer surface of inner pipe wall, that is: the height of ripple is 5-15mm.
3, the airduct that is used for air-conditioning and ventilation according to claim 1 is characterized in that: the distance between adjacent two the ripple center lines of described outer tube wall is 8-15mm.
4, the airduct that is used for air-conditioning and ventilation according to claim 1 is characterized in that: the ripple cross sectional shape of described outer tube wall is rectangle or zigzag or trapezoidal or arc.
5, according to claim 1 or 2 or the 3 or 4 described airducts that are used for air-conditioning and ventilation, it is characterized in that: pipe and outer tube are made by vinyon in described.
6, the airduct that is used for air-conditioning and ventilation according to claim 5 is characterized in that: the density of managing the vinyon that is adopted with outer tube in described is different, and interior pipe adopts LDPE, and outer tube adopts high-density polyethylene plastics.
7, the airduct that is used for air-conditioning and ventilation according to claim 1 is characterized in that: the described heat that is fixedly connected as is melted and is connected or a bonding or injection moulding or push fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050903 CN2709847Y (en) | 2004-05-10 | 2004-05-10 | Duct for air conditioner and ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050903 CN2709847Y (en) | 2004-05-10 | 2004-05-10 | Duct for air conditioner and ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2709847Y true CN2709847Y (en) | 2005-07-13 |
Family
ID=34851634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420050903 Expired - Lifetime CN2709847Y (en) | 2004-05-10 | 2004-05-10 | Duct for air conditioner and ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2709847Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003576A (en) * | 2010-12-27 | 2011-04-06 | 康泰塑胶科技集团有限公司 | Impact-resistant plastic pipe |
| CN107606761A (en) * | 2017-10-26 | 2018-01-19 | 武汉金牛经济发展有限公司 | A kind of fresh air PE pipe pipe-line systems |
| CN111022099A (en) * | 2019-12-26 | 2020-04-17 | 中铁隧道局集团有限公司 | CO for ventilation in high-heat tunnel construction2Double-layer heat-insulation soft air pipe |
| WO2021179422A1 (en) * | 2020-03-10 | 2021-09-16 | 广东美的制冷设备有限公司 | Air feeding and exhausting assembly, and integral air conditioner |
-
2004
- 2004-05-10 CN CN 200420050903 patent/CN2709847Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003576A (en) * | 2010-12-27 | 2011-04-06 | 康泰塑胶科技集团有限公司 | Impact-resistant plastic pipe |
| CN102003576B (en) * | 2010-12-27 | 2012-04-18 | 康泰塑胶科技集团有限公司 | Impact-resistant plastic pipe |
| CN107606761A (en) * | 2017-10-26 | 2018-01-19 | 武汉金牛经济发展有限公司 | A kind of fresh air PE pipe pipe-line systems |
| CN111022099A (en) * | 2019-12-26 | 2020-04-17 | 中铁隧道局集团有限公司 | CO for ventilation in high-heat tunnel construction2Double-layer heat-insulation soft air pipe |
| WO2021179422A1 (en) * | 2020-03-10 | 2021-09-16 | 广东美的制冷设备有限公司 | Air feeding and exhausting assembly, and integral air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140510 Granted publication date: 20050713 |