CN104565566B - A kind of construction drainage plastic standing tube with spiral ribbed steel wire - Google Patents
A kind of construction drainage plastic standing tube with spiral ribbed steel wire Download PDFInfo
- Publication number
- CN104565566B CN104565566B CN201410851992.9A CN201410851992A CN104565566B CN 104565566 B CN104565566 B CN 104565566B CN 201410851992 A CN201410851992 A CN 201410851992A CN 104565566 B CN104565566 B CN 104565566B
- Authority
- CN
- China
- Prior art keywords
- ribbed steel
- steel wire
- spiral ribbed
- standing tube
- spiral
- 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.)
- Ceased
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
Abstract
The invention discloses a kind of construction drainage plastic standing tube with spiral ribbed steel wire, including plastic standing tube body, some spiral ribbed steel wires coaxially it are circumferentially provided with along standpipe axis direction in plastic standing tube inner body wall, the end face of spiral ribbed steel wire is curved surface, and the junction of the root of spiral ribbed steel wire and plastic standing tube inner body wall is arc transition structure。The end face of the spiral ribbed steel wire of the present invention is curved surface, curvature is greatly reduced (radius of curvature increase), theory according to fluid wall attachment effect, avoid current direction standpipe centralized movement and produce the situation of water plug flow, reduce the fluctuation of overpressure, improve the drain discharge in certain pressure fluctuation range, it is thus also avoided that current alternately impacting tube wall, make pipe vibration and draining noise be substantially reduced。
Description
Technical field
The present invention relates to construction drainage pipe field, particularly to a kind of construction drainage plastic standing tube with spiral ribbed steel wire having and preventing the advantages such as floor drain deodorant, reduction current noise, drainability are strong。
Background technology
Plastic tube is the tubing that a kind of construction drainage is conventional, but due to plastic pipe inner wall smooth, frictional resistance is little, during for construction drainage standpipe, water velocity is higher, when flow is slightly larger, it is easy to form water plug flow (water plug flow: when referring to construction drainage standpipe for gravity drainage, when flow is excessive, to be attached to the water film thickness of tube wall excessive or be subject to the current that affect of structure and form central authorities' water body and falls in pipeline, forms group's plug-like current of whereabouts in pipeline。Under this streamflow regime, current are little by pipe friction drag effects, and lower speed drops soon, formed under gravity and accelerate flowing。Acutely, current noise is big, it is easy to cause toilet floor drain damage of water block, back foul phenomenon occurs in build-up of pressure fluctuation。), cause and bigger pressure oscillation and toilet back foul occur in pipe。This disadvantage limits the raising of plastic pipe drainability。In order to solve this problem, nearly more than ten years, a kind of novel internal coiling plastic drain pipe was developed, and by wide popularization and application。
Referring to shown in Fig. 1 to Fig. 3, the architectural feature of current internal coiling plastic drain pipe 10 is to have the triangle spiral ribbed steel wire 12 of several constant pitch certain altitudes at pipe material inner wall 11, and the junction 13 of the root of triangle spiral ribbed steel wire 12 and pipe material inner wall 11 is without arc transition。The purpose of triangle spiral ribbed steel wire 12 is to make the current fallen along tube wall form spiral type attached wall current (the attached wall current of spiral type: when referring to construction drainage standpipe for gravity drainage, current are attached to inner-walls of duct and fall twist, form the membranaceous current of spiral type fallen along inner-walls of duct。Under this streamflow regime, current reduce in the falls downward speed of pipe friction resistance and rotary centrifugal force, are formed and at the uniform velocity flow, and water film thickness increases。Be conducive to improving pipe drainage performance, reduce pressure oscillation, it is prevented that toilet floor drain back foul, reduce current noise, improve drainability。), reduce current falling speed, increase pipe friction resistance, to reduce pressure oscillation during standpipe draining, it is prevented that floor drain damage of water block, reduce the generation of toilet back foul phenomenon。When drain discharge is less, overpressure fluctuation and current falling speed substantially reduce。Internal coiling plastic drain pipe 10 drainability also relatively light wall plastic tube increase。
But when the test of actually used and drainability, when displacement increases, the bigger pressure oscillation of generation and vibration noise in internal coiling plastic drain pipe 10。Shown in Fig. 4, its reason is in that: 1) be subject to gravity and the impact of pipe friction resistance, and the current 1 along tube wall whereabouts are crossed triangle spiral ribbed steel wire 12 and flowed along tube wall, it is impossible to form spiral water flow along triangle spiral ribbed steel wire 12；2) when current 1 fall to flowing through triangle spiral ribbed steel wire 12 surface along tube wall, due to triangle spiral ribbed steel wire 12 surface curvature greatly (radius of curvature is minimum), according to fluid wall attachment effect, (wall attachment effect: refer to that fluid (current or air-flow) has and leave original flow direction changes into along with the tendency of the body surface flowing protruded。When there is mantle friction between fluid and its body surface of flowing through, the flow velocity of fluid can slow down。As long as the curvature of body surface is not too big, according to the Bernoulli's theorem in hydrodynamics, slowing down of flow velocity can cause that fluid is attracted on body surface and flows。) theory, current 1 have and leave curvature greatly towards the strong tendency of standpipe central motion, and displacement is more big, and current 1 are more big to the water yield of standpipe central motion。Causing current 1 big ups and downs in pipe, formed and alternately impact the water plug flow that tube wall falls, block gas channel in pipe, build-up of pressure fluctuation sharply raises, and noise increases, thus damage of water block occurs, and the generation of toilet back foul phenomenon。
Summary of the invention
Present invention aims to existing internal coiling plastic drain pipe pressure oscillation easily occurs when displacement increases, destroys deficiency and the defects such as water seal, floor drain back foul, noise increase, by changing the spiral ribbed steel wire planform of existing internal coiling plastic drain pipe, it is provided that a kind of reach to change falling water flow form in soil stack, overpressure fluctuation when reducing draining, reduce falling water flow speed, avoid damage of water block and toilet back foul, reduce draining noise, improve the construction drainage plastic standing tube with spiral ribbed steel wire of the purposes such as drainability。
Technical problem solved by the invention can realize by the following technical solutions:
A kind of construction drainage plastic standing tube with spiral ribbed steel wire, including plastic standing tube body, some spiral ribbed steel wires coaxially it are circumferentially provided with along standpipe axis direction in described plastic standing tube inner body wall, it is characterized in that, the end face of described spiral ribbed steel wire is curved surface, and the junction of the root of described spiral ribbed steel wire and described plastic standing tube inner body wall is arc transition structure。
In a preferred embodiment of the invention, described curved surface is evagination arcwall face。
In a preferred embodiment of the invention, the radius of curvature of described evagination arcwall face is 8mm, the height 2.5～3.0mm of described spiral ribbed steel wire, and the radius of corner of described arc transition structure is 8mm。
In a preferred embodiment of the invention, described some spiral ribbed steel wires divide distribution along tube section circumferencial direction etc.。
In a preferred embodiment of the invention, described spiral ribbed steel wire is 6～12, and the pitch of adjacent two spiral ribbed steel wires is 500～760mm。
In a preferred embodiment of the invention, described plastic standing tube body and some spiral ribbed steel wires adopt plastic material thermoplastic extrusion one-body molded。
In a preferred embodiment of the invention, described plastic material is polyethylene or polypropylene or polrvinyl chloride。
In a preferred embodiment of the invention, the hand of spiral of described spiral ribbed steel wire is seen as from top to bottom along axis counterclockwise。
Owing to have employed technical scheme as above, the beneficial effects of the present invention is: the end face of spiral ribbed steel wire is curved surface, curvature is greatly reduced (radius of curvature increase), theory according to fluid wall attachment effect, when in-pipe flow falls along tube wall, current are attracted to tube wall and will not leave, form good attached wall water film flow pattern, avoid current direction standpipe centralized movement and produce the situation of water plug flow, reduce the fluctuation of overpressure, improve the drain discharge in certain pressure fluctuation range, also avoid current alternately impacting tube wall, pipe vibration and draining noise is made to be substantially reduced。Furthermore, adsorbed current are subject to the effect of pipe friction resistance, and falling speed is substantially reduced, it is to avoid destroy water seal, it is prevented that floor drain back foul。Owing to falling water flow is attracted to tube wall, adding the effect to current of the pipe friction resistance, the current descent path of helical curve wire extends the water movement length of unit height of drop simultaneously, makes current falling speed reduce further。
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Fig. 1 is the surface structure schematic diagram of the internal coiling plastic drain pipe of currently available technology。
Fig. 2 is the A-A sectional view of Fig. 1。
Fig. 3 is the B-B sectional view of Fig. 1。
Current flow regime schematic diagram in the internal coiling plastic drain pipe pipe of prior art when Fig. 4 is displacement increase。
Fig. 5 is the surface structure schematic diagram of an embodiment of the present invention。
Fig. 6 is the A-A sectional view of Fig. 5。
Fig. 7 is the B-B sectional view of Fig. 5。
Fig. 8 is the perspective view of an embodiment of the present invention。
Current flow regime schematic diagram in an embodiment of the present invention pipe when Fig. 9 is displacement increase。
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, the present invention is further elucidated below。
Referring to a kind of construction drainage plastic standing tube with spiral ribbed steel wire shown in Fig. 5 to Fig. 8, including plastic standing tube body 100, coaxially it is circumferentially provided with some spiral ribbed steel wires 120 at plastic standing tube body 100 inwall 110 along standpipe axis direction。
In the present embodiment, spiral ribbed steel wire 120 is 12, along point distributions such as tube section circumferencial directions。The end face of spiral ribbed steel wire 120 is curved surface so that the end face curvature of spiral ribbed steel wire 120 is greatly reduced, and namely radius of curvature increases, and the junction of the root of spiral ribbed steel wire 120 and plastic standing tube inner body wall 110 is arc transition structure 122。
In the present embodiment, the end face of spiral ribbed steel wire 120 is evagination arcwall face 121, and the radius of curvature of evagination arcwall face 121 is 8mm, the height 2.5～3.0mm of spiral ribbed steel wire 120, the radius of corner of arc transition structure 122 is 8mm, and the pitch of adjacent two spiral ribbed steel wires 120 is 500～760mm。So the plastic standing tube inner body wall 110 of the present embodiment and spiral ribbed steel wire 120 and both junctions are the little streamlined arcuate structure that namely radius of curvature is big of curvature, improve the attached wall effect of current to greatest extent。
According to the theory according to fluid wall attachment effect, shown in Fig. 9, when in-pipe flow 1a falls along tube wall, current 1a is attracted to plastic standing tube inner body wall 110 and will not leave, form good attached wall water film flow pattern, it is to avoid current 1a produces the situation of water plug flow to standpipe centralized movement, reduce the fluctuation of overpressure, improve the drain discharge in certain pressure fluctuation range, it is thus also avoided that current alternately impacting tube wall, make pipe vibration and draining noise be substantially reduced。Furthermore, adsorbed current 1a is subject to the effect of pipe friction resistance, and falling speed is substantially reduced, it is to avoid destroy water seal, it is prevented that floor drain back foul。Owing to falling water flow is attracted to plastic standing tube inner body wall 110, adding the effect to current of the pipe friction resistance, the current descent path of helical curve wire extends the water movement length of unit height of drop simultaneously, makes current falling speed reduce further。
Due to earth autobiography direction, the hand of spiral of spiral ribbed steel wire 120 can be determined according to specified place, for instance when place to use is positioned at the Northern Hemisphere, and the hand of spiral of spiral ribbed steel wire 120 is seen as counterclockwise from top to bottom along axis, to improve water flow rotary effect。
The plastic standing tube body 100 of the present invention and some spiral ribbed steel wires 120 adopt plastic material thermoplastic extrusion one-body molded, and plastic material is polyethylene or polypropylene or polrvinyl chloride, and the present invention facilitates fabrication and processing。
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described。Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention。Claimed scope is defined by appending claims and equivalent thereof。
Claims (8)
1. the construction drainage plastic standing tube with spiral ribbed steel wire, including plastic standing tube body, some spiral ribbed steel wires coaxially it are circumferentially provided with along standpipe axis direction in described plastic standing tube inner body wall, it is characterized in that, the end face of described spiral ribbed steel wire is curved surface, and the junction of the root of described spiral ribbed steel wire and described plastic standing tube inner body wall is arc transition structure。
2. a kind of construction drainage plastic standing tube with spiral ribbed steel wire as claimed in claim 1, it is characterised in that described curved surface is evagination arcwall face。
3. a kind of construction drainage plastic standing tube with spiral ribbed steel wire as claimed in claim 2, it is characterised in that the radius of curvature of described evagination arcwall face is 8mm, the height 2.5～3.0mm of described spiral ribbed steel wire, and the radius of corner of described arc transition structure is 8mm。
4. a kind of construction drainage plastic standing tube with spiral ribbed steel wire as claimed in claim 3, it is characterised in that described some spiral ribbed steel wires divide distribution along tube section circumferencial direction etc.。
5. a kind of construction drainage plastic standing tube with spiral ribbed steel wire as claimed in claim 3, it is characterised in that described spiral ribbed steel wire is 6～12, and the pitch of adjacent two spiral ribbed steel wires is 500～760mm。
6. a kind of construction drainage plastic standing tube with spiral ribbed steel wire as claimed in claim 3, it is characterised in that described plastic standing tube body and some spiral ribbed steel wires adopt plastic material thermoplastic extrusion one-body molded。
7. a kind of construction drainage plastic standing tube with spiral ribbed steel wire as described in claim 1 to 6 any claim, it is characterised in that described plastic material is polyethylene or polypropylene or polrvinyl chloride。
8. a kind of construction drainage plastic standing tube with spiral ribbed steel wire as claimed in claim 7, it is characterised in that the hand of spiral of described spiral ribbed steel wire is seen as from top to bottom along axis counterclockwise。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410851992.9A CN104565566B (en) | 2014-12-30 | 2014-12-30 | A kind of construction drainage plastic standing tube with spiral ribbed steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410851992.9A CN104565566B (en) | 2014-12-30 | 2014-12-30 | A kind of construction drainage plastic standing tube with spiral ribbed steel wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565566A CN104565566A (en) | 2015-04-29 |
| CN104565566B true CN104565566B (en) | 2016-06-22 |
Family
ID=53082304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410851992.9A Ceased CN104565566B (en) | 2014-12-30 | 2014-12-30 | A kind of construction drainage plastic standing tube with spiral ribbed steel wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565566B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696659A (en) * | 2016-03-18 | 2016-06-22 | 广东联塑科技实业有限公司 | Noise reduction rapid flow spiral drain |
| CN106051321A (en) * | 2016-07-26 | 2016-10-26 | 上海亨公电线电缆有限公司 | Inner spiral tube and manufacturing method thereof |
| CN110886913A (en) * | 2018-09-10 | 2020-03-17 | 宁夏迈尖管业有限公司 | Pressure-stabilizing mute double-riser drainage system |
| CN111022787A (en) * | 2019-11-30 | 2020-04-17 | 安徽金昊天塑胶科技发展有限公司 | Plastic pipe fitting capable of offsetting impact stress |
| CN111623187B (en) * | 2020-07-01 | 2021-08-17 | 禹州市洁通塑胶有限公司 | Building drainage vertical pipe, forming die and forming method thereof |
| CN114658927A (en) * | 2022-03-31 | 2022-06-24 | 湖北大洋塑胶有限公司 | Polypropylene drainage riser |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201280746Y (en) * | 2008-10-20 | 2009-07-29 | 王绍法 | Spiral-flute silencing drainage pipe spiral noise-reduction drainage pipe |
| CN202056460U (en) * | 2011-03-23 | 2011-11-30 | 浙江中财管道科技股份有限公司 | Rotary adherence fluid director |
| CN203940132U (en) * | 2013-12-27 | 2014-11-12 | 甘肃三合塑胶科技有限公司 | A kind of UPVC inner helix pipe with hollow wall |
| CN204403593U (en) * | 2014-12-30 | 2015-06-17 | 上海深海宏添建材有限公司 | A kind of construction drainage plastic standing tube with spiral ribbed steel wire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100586897B1 (en) * | 2005-10-28 | 2006-06-08 | 김선관 | Triple jointing pipe for prevention of noise |
-
2014
- 2014-12-30 CN CN201410851992.9A patent/CN104565566B/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201280746Y (en) * | 2008-10-20 | 2009-07-29 | 王绍法 | Spiral-flute silencing drainage pipe spiral noise-reduction drainage pipe |
| CN202056460U (en) * | 2011-03-23 | 2011-11-30 | 浙江中财管道科技股份有限公司 | Rotary adherence fluid director |
| CN203940132U (en) * | 2013-12-27 | 2014-11-12 | 甘肃三合塑胶科技有限公司 | A kind of UPVC inner helix pipe with hollow wall |
| CN204403593U (en) * | 2014-12-30 | 2015-06-17 | 上海深海宏添建材有限公司 | A kind of construction drainage plastic standing tube with spiral ribbed steel wire |
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| Publication number | Publication date |
|---|---|
| CN104565566A (en) | 2015-04-29 |
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Decision date of declaring invalidation: 20210104 Decision number of declaring invalidation: 47149 Granted publication date: 20160622 |