CN207750650U - Heat supply pipeline with internal resistance reduction function - Google Patents
Heat supply pipeline with internal resistance reduction function Download PDFInfo
- Publication number
- CN207750650U CN207750650U CN201721828614.4U CN201721828614U CN207750650U CN 207750650 U CN207750650 U CN 207750650U CN 201721828614 U CN201721828614 U CN 201721828614U CN 207750650 U CN207750650 U CN 207750650U
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- China
- Prior art keywords
- wall
- heat supply
- pipeline
- groove
- supply pipeline
- 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
Links
- 230000009467 reduction Effects 0.000 title abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 235000001968 nicotinic acid Nutrition 0.000 abstract description 2
- 230000010349 pulsation Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000446 fuel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Thermal Insulation (AREA)
Abstract
A heat supply pipeline with an internal resistance reduction function comprises a pipe wall, wherein a plurality of grooves are uniformly distributed on the inner wall of the pipe wall, and resistance reduction coatings are coated on the pipe wall between the grooves. The utility model discloses carry out redesign to pipe inner wall according to bionics principle and plate boundary layer theory, the arrangement through optimizing the recess makes near pipeline wall turbulent kinetic energy near take place obvious change, and simultaneously, combine the drag reduction effect of drag reduction undercoating, turbulent kinetic energy intensity in pipeline wall face region has been reduced to a certain extent, the turbulent kinetic energy scope in low reaches smooth district has been reduced, thereby weaken near the energy transmission of wall and keep away from the momentum pulsation transport of wall face region, thereby reduce near wall fluid kinetic energy loss, play the effect of reducing pipeline on-the-way resistance, the heat supply end energy consumption cost has been saved.
Description
Technical field
The utility model is related to pipe technology field more particularly to a kind of heat supply pipelines having interior anti-drag function.
Background technology
For the atmosphere pollution serious problems for administering in recent years, northern China resident's Winter heat supply energy resource structure also gradually occurs
Change, from using coal being before that main fuel is transformed to now using natural gas as the burning structure of main fuel, no matter uses
The heating of which kind of energy resource structure is all that enough cold water is heated first with fuel, is used to resident by conveying hot water at a distance
In the man of family, in particular with all remote suburb of present most tall buildings, and number of users increases, municipal administration heating
Center just must constantly extend hot duct, will be same along journey thermal loss, hot water flow resistance with the extension of hot duct
Step increases, and heat supply end cost output is caused to increase.
Currently, the research of heat supply pipeline on-way resistance mainly considers the influence of initial wall surface equivalent roughness, pass through coating skill
The methods of art, raising welding procedure reduce pipeline wall roughness, improve pipeline drag reduction performance.Increasingly due to these technique studies
Maturation, the space for reducing heat supply pipeline flow resistance are limited to, and after prolonged use, and pipeline wall roughness will increase
Add, not small frictional resistance increased to the conveying of remote hot water, so can only be made up by more burning fuels frictional resistance and
Thermal loss results in waste of resources, and heat cost increases.
Invention content
To solve the still larger defect of existing hot duct frictional resistance, the utility model provide it is a kind of it is simple in structure,
The low heat supply pipeline of energy consumption frictional resistance.
The purpose of this utility model is achieved through the following technical solutions：
A kind of heat supply pipeline having interior anti-drag function, including tube wall are evenly distributed on the inner wall of the tube wall several
A groove is coated with drag-reducing coating on the tube wall between the groove and groove.
The groove diameter is 12mm, and groove is 40mm with groove axial spacing, and groove is spaced 15 ° of rows in the circumferential
Row, are divided into 24 equal portions, and axial spacing is determined according to heat supply pipeline perimeter.
The groove pit depth is 6mm.
The beneficial effects of the utility model：The utility model is according to bionics principle and Boundary Layer on Flat Plate theory in pipeline
Wall is redesigned, and the arrangement mode by optimizing groove makes the tubulence energy of nearly pipeline near wall substantially change, together
When, in conjunction with the internally coated drag-reduction effect of drag reduction, the tubulence energy intensity in pipeline wall area is reduced to a certain extent, is reduced
The turbulence energy range of downstream smooth areas, to weaken the energy transmission of near wall and momentum pulsation far from wall region is defeated
Fortune plays the role of reducing pipeline on-way resistance, saves the heat supply end energy and disappear to reduce the loss of near wall fluid dynamic energy
Consume cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is arrangement schematic diagram of the groove on tube wall.
Wherein：1- tube walls；2- grooves；3- drag-reducing coatings.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
The embodiment of type is set forth in.
A kind of heat supply pipeline having interior anti-drag function as depicted in figs. 1 and 2, including tube wall 1, the tube wall 1 it is interior
It is evenly distributed with several grooves 2 on wall, drag-reducing coating 3 is coated on the tube wall 1 between the groove 2 and groove 2.
2 a diameter of 12mm of groove, groove 2 and 2 axial spacing L of groove are 40mm, and groove 2 is spaced in the circumferential
15 ° of arrangements, are divided into 24 equal portions, and axial spacing W is determined according to heat supply pipeline perimeter.
2 pit depth of groove is 6mm.
When specifically used, during hot water flows in heat supply pipeline, tube wall 1 can generate hot water certain resistance,
Groove 2 is conducive to hot water and is flowed along tube wall 1, and whirlpool occurs in the tube wall 1 equipped with groove 2, but still is not spread in inside boundary
Aggravate turbulent flow at center；Flowing property changes between vortex and mainstream, and similar rolling friction is produced between two plumes
The phenomenon that instead of sliding friction, rolling frictional resistance is less than sliding-frictional resistance, thus the flow resistance of hot water is made to reduce.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should all still belong within the patent covering scope of the utility model.
Claims (3)
1. a kind of heat supply pipeline having interior anti-drag function, which is characterized in that including tube wall（1）, the tube wall（1）Inner wall
On be evenly distributed with several grooves（2）, the groove（2）With groove（2）Between tube wall（1）On be coated with drag-reducing coating（3）.
2. a kind of heat supply pipeline having interior anti-drag function according to claim 1, which is characterized in that the groove
（2）A diameter of 12mm, groove（2）With groove（2）Axial spacing is 40mm, groove（2）It is spaced 15 ° of arrangements in the circumferential, is divided into
For 24 equal portions, axial spacing is determined according to heat supply pipeline perimeter.
3. a kind of heat supply pipeline having interior anti-drag function according to claim 1, which is characterized in that the groove
（2）Pit depth is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828614.4U CN207750650U (en) | 2017-12-25 | 2017-12-25 | Heat supply pipeline with internal resistance reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828614.4U CN207750650U (en) | 2017-12-25 | 2017-12-25 | Heat supply pipeline with internal resistance reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207750650U true CN207750650U (en) | 2018-08-21 |
Family
ID=63150350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721828614.4U Expired - Fee Related CN207750650U (en) | 2017-12-25 | 2017-12-25 | Heat supply pipeline with internal resistance reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207750650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715984A (en) * | 2019-03-20 | 2020-09-29 | 天津市同鑫泰钢管制造有限公司 | High-strength anti-drag type long-distance spiral steel pipe for oil gas transmission and machining process thereof |
-
2017
- 2017-12-25 CN CN201721828614.4U patent/CN207750650U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715984A (en) * | 2019-03-20 | 2020-09-29 | 天津市同鑫泰钢管制造有限公司 | High-strength anti-drag type long-distance spiral steel pipe for oil gas transmission and machining process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180821 Termination date: 20201225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |