Summary of the invention
In view of this, be necessary in fact to provide spiral speed stream silencing drainage pipe, it has good guide functions, makes current along spiral bar steady flow, and water flux density is large, and the sound is little.
Spiral speed stream silencing drainage pipe provided by the invention comprises: comprise circular body and some spiral bars; Wherein, the spiral angle γ of described some spiral bars is 5-18 °.
Preferably, the spiral angle γ of described some spiral bars is 12 °.
Preferably, described some spiral bars are evenly distributed on the inwall of described circular body.
Preferably, the cross section of described spiral bar is triangle, and described triangle is partial to the hand of spiral of this spiral bar.
Preferably, the angle at two base angles of described triangle is respectively α, β, and α is 27.5-60 °, β is 60-90 °.
Preferably, the corner that described spiral bar is connected with described circular body seamlessly transits with fillet.
Preferably, the size R of a wherein fillet
1for 10-20mm, the size R of another fillet
2for 2-6mm.
Preferably, the height h of described spiral bar is the 2%-3.5% of circular internal diameter of tube body.
Preferably, the height h of described spiral bar is 2.8% of circular internal diameter of tube body.
Preferably, the spacing between adjacent two described spiral bars is 20-40mm.
Preferably, the spacing between adjacent two described spiral bars is 28mm.
Spiral speed stream silencing drainage pipe of the present invention is by designing spiral bar shape, angle and distribution thereof.Therefore, spiral speed stream silencing drainage pipe of the present invention has following beneficial effect:
1) contribute to eliminating " water plug ", improve ventilatory effect, slow down the air resistance in pipeline.
2) effectively reduce flow impact, more easily form stable spiral water flow, ensure the unimpeded of intermediate air post, increase drainability, reduce noise and produce.
3) the excellent drainage ventilation performance improvement sanitary condition of house, reduces the pressure oscillation of drainage system, avoids damage of water block, be conducive to the dwelling environment improving people.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail, but embodiments of the present invention are not limited thereto, for the technological parameter do not indicated especially, can refer to routine techniques and carry out.
Refer to Fig. 1-3, the spiral speed stream silencing drainage pipe 100 of one embodiment of the invention comprises circular body 10 and some spiral bars 30; These some spiral bars 30 are evenly distributed on the inwall of circular body 10.The spiral angle γ (as shown in Figure 3) of these some spiral bars 30 is 5-18 ° (about 1-2.5m revolves and turns around), and preferably, this spiral angle γ is 12 °.Now, current fall along spiral bar 30 under the effect of earth rotation biasing force and self gravitation, form stable spiral water flow.This spiral angle can be optimized design according to the latitude of different regions and earth rotation.
In one embodiment of this invention, the cross section of spiral bar 30 is triangle, and this triangle is partial to the hand of spiral of this spiral bar 30.In the present embodiment, two base angles of triangle are respectively α, β (as shown in Figure 2), and preferably, α is 27.5-60 °, β is 60-90 °.When the cross section of spiral bar 30 is triangle, and when being partial to the hand of spiral of this spiral bar 30, better water conservancy diversion can be carried out to the fluid entered in circular body 10.
In one embodiment of this invention, the corner that spiral bar 30 is connected with circular body 10 seamlessly transits with fillet, wherein the size R of a fillet
1for 10-20mm, the size R of another fillet
2for 2-6mm (as shown in Figure 2).This fillet design can reduce spiral bar 30 and the stress of looping tube 10 junction, improves the life-span of spiral speed stream silencing drainage pipe 100; And the resistance that the spiral bar 30 pairs of current produce can be reduced, alleviate current and spiral bar 30 clashes into the sound produced.
In one embodiment of this invention, the height h (as shown in Figure 2) of this spiral bar 30 is the 2%-3.5% of circular body 10 internal diameter, is preferably 2.8%.When the height h of spiral bar 30 is too low, be difficult to form complete spiral water flow, the air column in the middle of circular body 10 is difficult to keep unimpeded, does not have good guide functions; If spiral bar excessive height, then current easily produce spiral bar and impact, and spray of water, can send the larger sound, also can affect the displacement of gutter simultaneously.
In one embodiment of this invention, the spacing between adjacent two spiral bars 30 is 20-40mm, is preferably 28mm.When the spacing of adjacent two spiral bars 30 is narrow, then easily there is current collision; Time wide, then not easily form the attached wall moisture film of spiral.
Spiral speed stream silencing drainage pipe of the present invention is when draining, current are under the water conservancy diversion of spiral bar, spiral angle along spiral bar forms the most stable spiral water flow, keep the unimpeded of intermediate air post, current post and air and inwall is avoided to produce collision noise, avoid air to hinder draining, reach the effect of speed stream noise reduction.Standpipe draining is all deadweight draining, and rely on the gravity of water self to discharge under terrestrial gravitation effect, spiral bar can play the effect guiding current to form spiral, avoids the formation of the water column that piston is the same.
Embodiment 1
Investigate the impact of height on drain discharge and noise of spiral bar:
The external diameter 110mm of gutter, internal diameter 103.6mm, spiral bar quantity is 12, spacing between adjacent two spiral bars is 28mm, spiral angle is 12 degree, about 1.5 meters revolve and turn around, carry out drainability test (adopting CECS336-2013 " house living drainage system standpipe drainability testing standard " to test) and noise test (adopting CJ/T312-2009 " construction drainage pipe-line system noise testing method " to test) to the spiral bar of differing heights, result is as shown in table 1:
External diameter/mm |
Internal diameter/mm |
Spiral bar height/mm |
Highly account for internal diameter ratio |
Drainability/(L/S) |
Noise/db |
110 |
103.6 |
1.8 |
1.74% |
4.8 |
50.5 |
110 |
103.6 |
2.9 |
2.80% |
6.0 |
43.7 |
110 |
103.6 |
4 |
3.86% |
5.6 |
48.6 |
The height of table 1 spiral bar is on the impact of drainability and noise
As known from Table 1, the height of spiral bar is 2.9mm, and when namely spiral bar height is internal diameter of tube body 2.8%, the drainability of this spiral speed stream silencing drainage pipe is the strongest, and noise is minimum.
When the height h of spiral bar 30 is too low, be difficult to form complete spiral water flow, the air column in the middle of circular body 10 is difficult to keep unimpeded, thus affects drain discharge and the noise of gutter.
If spiral bar excessive height, then current easily produce spiral bar and impact, and spray of water, can send the larger sound, also can affect the displacement of gutter simultaneously.
Embodiment 2
The impact investigated spiral bar quantity and distribute on drainability and noise:
The external diameter 110mm of gutter, internal diameter 103.6mm, spiral bar height h is 2.9mm, spiral angle is 12 degree, about 1.5 meters revolve and turn around, the impact tested different spiral bar quantity and distribute on drainability (adopting CECS336-2013 " house living drainage system standpipe drainability testing standard " to test) and noise (adopting CJ/T312-2009 " construction drainage pipe-line system noise testing method " to test), result is as shown in table 2:
The quantity of table 2 spiral bar and distribution are on the impact of drainability and noise
As known from Table 2, when the quantity of spiral bar is 12, drainability is the strongest, and noise is minimum.
When spiral bar negligible amounts, such as the helix tube of common external diameter 110mm is 6 spiral bars in the market, and the spacing between adjacent two spiral bars is comparatively large, at the attached wall current of the spiral that the more difficult formation in spacing place is stable.
When spiral bar quantity is more, spiral bar easily clashes into current, increase noise.
Embodiment 3
Investigate the impact of spiral angle on drainability and noise:
The external diameter 110mm of gutter, internal diameter 103.6mm, spiral bar height h is 2.9mm, spiral bar quantity is 12, adjacent two spiral bar spacing are 28mm, test the impact of different spiral angle on drainability (adopt CECS336-2013 " house living drainage system standpipe drainability testing standard " test) and noise (employing CJ/T312-2009 " construction drainage pipe-line system noise testing method " is tested), result is as shown in table 3:
External diameter/mm |
Internal diameter/mm |
Spiral angle/degree |
Revolve the length/m that turns around |
Drainability/(L/S) |
Noise/db |
110 |
103.6 |
18 |
1 |
5.6 |
49.2 |
110 |
103.6 |
12 |
1.5 |
6.0 |
43.7 |
110 |
103.6 |
7.5 |
2.5 |
5.4 |
46.8 |
110 |
103.6 |
4.7 |
4 |
5.0 |
51.8 |
The different spiral angle of table 3 is on the impact of drainability and noise
Standpipe draining is all deadweight draining, the gravity of water self is relied on to discharge under terrestrial gravitation effect, spiral bar can guide current to form the effect of spiral, avoid the formation of the water column that piston is the same, the angle that in forming process, spiral bar rotates has a great impact the comprehensive draining flow of product and noise.
As known from Table 3, carry out orientation optimization design according to Chinese latitude area and earth rotation, comply with current and to conduct oneself with dignity under earth rotation biasing force the angle of spiral-falling, about 5-18 degree (about 1-2.5m revolves and turns around), optimum is 12 degree, the most easily forms stable spiral water flow.
In the market helix tube be 4.7 degree substantially (4 meters revolve turn around), the angle of spiral is inadequate, and actual measurement drainability and noise are all little desirable.If spiral angle is excessive, revolves turn around more than 1m, then the internal stress of gutter generation is excessive, spiral bar place has become weak link, easy embrittlement, and spiral angle is excessive, the natural gravity deflecting force of current does not reach so wide-angle, and current are not easy to form spiral water flow along spiral bar.
The present invention is not limited to above-mentioned embodiment, if do not depart from the spirit and scope of the present invention to various change of the present invention or distortion, if these are changed and distortion belongs within claim of the present invention or equivalent technologies scope, then the present invention is also intended to comprise these changes and distortion.