CN2433488Y - Noise-reduction drainage pipe - Google Patents
Noise-reduction drainage pipe Download PDFInfo
- Publication number
- CN2433488Y CN2433488Y CN 00215725 CN00215725U CN2433488Y CN 2433488 Y CN2433488 Y CN 2433488Y CN 00215725 CN00215725 CN 00215725 CN 00215725 U CN00215725 U CN 00215725U CN 2433488 Y CN2433488 Y CN 2433488Y
- Authority
- CN
- China
- Prior art keywords
- shot
- particle
- waste pipe
- pipe
- drainage pipe
- 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 - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a noise-reduction drainage pipe, which is characterized in that the inner wall of the drainage pipe forms an uneven shape; the inner wall of a plastic pipe is better combined with a mixed layer formed by macromolecular material and granular material, and the mixed layer forms an uneven shape; the granular material better comprises granules of which the average diameter is from 0.1 mm to 2 mm. Owing to the drag increment on a rough surface, the gliding speed of water is slowed up, and the sound produced by the gliding of the water is reduced. Meanwhile, a rough surface formed by the granular material on the inner wall of the pipe has a favorable effect of sound absorbing. In such a way, the plastic pipe has a better effect of sound reduction, and the fluency of the water is not influenced. The utility model has the advantages of easy implement for the manufacturing process, low cost, the enhancement of use value for the drainage pipe.
Description
The utility model relates to a kind of waste pipe.
At present, country widelys popularize the plastic drain-pipe that is used for various buildings, building.Because inner-walls of duct is smooth especially, hot-tempered sound is bigger, influences the normal quality of life of resident.In order to alleviate noise, there is the structure of pair waste pipe to carry out improved technological scheme in the prior art.The problem that prior art exists is that it is many that manufacture cost is increased, or manufacturing process is complicated, can reduce the sound source that produces noise, but the acoustically effective of pipe own is relatively poor.
The purpose of this utility model provides a kind of noise reduction waste pipe, good muffling effect, and technology is simple.
Noise reduction waste pipe of the present utility model, its major technique characteristics are that inner tube wall is roughness.
Roughness preferably is roughness equably.
Roughness of the present utility model comprises that roughness can be formed by dual mode equably:
The one, in the inwall formation of original tubing.Being arranged by shot-like particle forms, preferably short grained shot-like particle, and the average diameter of shot-like particle is 0.1～2 millimeter, preferably 0.1～1 millimeter.
The 2nd, add composite bed at inner tube wall.As waste pipe is plastic tube, and at the mixing layer that the compound one deck of plastic tube inwall is formed by macromolecular material and shot-like particle, this mixing layer constitutes roughness (rough surface).Equally preferably macromolecular material forms with short grained shot-like particle and mixes the back layer, and the average diameter of described shot-like particle is 0.1～2 millimeter, preferably 0.1～1 millimeter.
Above-mentioned second way production technology ratio is easier to realize.
Below in conjunction with embodiment's description of drawings:
Fig. 1 is a cross section structure schematic representation of the present utility model,
Among the figure: the mixing layer that 1 plastic tube, 2 macromolecular materials and shot-like particle form
At plastic tube 1 inner-wall spraying macromolecular material (acroleic acid macromolecular material) and shot-like particle, macromolecular material and shot-like particle form the mixing layer 2 that is compounded in inner tube wall, and the average diameter of shot-like particle is 0.1～1 millimeter.Can form the uneven surface of even shape like this at the plastic tube inwall.Its manufacturing process is simple, implements easily, and cost is also lower.
In use, when water flows into standpipe (plastic tube), because the more smooth surface drag increase in coarse surface, thereby the gliding speed of having slowed down water makes air reduce many because of the sound of the downslide generation of water.Simultaneously, tube wall has good acoustically effective by the rough surface that shot-like particle forms, and makes plastic tube have erasure effect preferably like this.Form coarse surface (rough surface) by granule, do not influence the downslide of water in the pipe, and can guarantee the smoothness of water.Through preliminary comparative trial, under equal conditions, compare with common plastics tube (inner tube wall is smooth), differing 8.6dB from 2 meters tests of waste pipe.
Advantage of the present utility model:
The utility model good muffling effect, manufacturing process is simple, implements easily, and cost is low, has greatly improved plastic row The use value of water pipe.
Claims (8)
1, a kind of noise reduction waste pipe is characterized in that inner tube wall is roughness.
2, waste pipe according to claim 1 is characterized in that inner tube wall is roughness equably.
3, waste pipe according to claim 1 and 2 is characterized in that described roughness is formed by shot-like particle.
4, waste pipe according to claim 3 is characterized in that described roughness is formed by short grained shot-like particle.
5, waste pipe according to claim 4, the average diameter that it is characterized in that described shot-like particle is 0.1～2 millimeter.
6, waste pipe according to claim 1 and 2 is characterized in that the mixing layer that formed by macromolecular material and shot-like particle for the compound one deck of plastic tube inwall, and this mixing layer constitutes roughness.
7, waste pipe according to claim 6 is characterized in that forming mixing layer by macromolecular material and short grained shot-like particle.
8, waste pipe according to claim 7, the average diameter that it is characterized in that described shot-like particle is 0.1～2 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215725 CN2433488Y (en) | 2000-07-31 | 2000-07-31 | Noise-reduction drainage pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215725 CN2433488Y (en) | 2000-07-31 | 2000-07-31 | Noise-reduction drainage pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2433488Y true CN2433488Y (en) | 2001-06-06 |
Family
ID=33581608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00215725 Expired - Fee Related CN2433488Y (en) | 2000-07-31 | 2000-07-31 | Noise-reduction drainage pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2433488Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2403150A1 (en) * | 2011-11-08 | 2013-05-14 | Abn Pipe Systems, S.L.U. | Pipework for heat exchange in geothermal applications |
| CN102472147B (en) * | 2009-07-10 | 2014-04-23 | 丰田自动车株式会社 | Coolant circulation circuit |
| CN104373695A (en) * | 2014-10-29 | 2015-02-25 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline |
| CN106461092A (en) * | 2014-07-02 | 2017-02-22 | 三菱电机株式会社 | Expansion valve and refrigeration cycle device |
-
2000
- 2000-07-31 CN CN 00215725 patent/CN2433488Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472147B (en) * | 2009-07-10 | 2014-04-23 | 丰田自动车株式会社 | Coolant circulation circuit |
| ES2403150A1 (en) * | 2011-11-08 | 2013-05-14 | Abn Pipe Systems, S.L.U. | Pipework for heat exchange in geothermal applications |
| WO2013068613A1 (en) * | 2011-11-08 | 2013-05-16 | Abn Pipe Systems, S.L.U. | Pipework for heat exchange in geothermal applications |
| CN106461092A (en) * | 2014-07-02 | 2017-02-22 | 三菱电机株式会社 | Expansion valve and refrigeration cycle device |
| US10054344B2 (en) | 2014-07-02 | 2018-08-21 | Mitsubishi Electric Corporation | Expansion valve and refrigeration cycle apparatus |
| CN106461092B (en) * | 2014-07-02 | 2018-12-28 | 三菱电机株式会社 | Expansion valve and refrigerating circulatory device |
| CN104373695A (en) * | 2014-10-29 | 2015-02-25 | 无锡金顶石油管材配件制造有限公司 | Petroleum pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |