CN2471860Y

CN2471860Y - Spiral silencer with hydrophilic inner wall

Info

Publication number: CN2471860Y
Application number: CN 01214603
Authority: CN
Inventors: 付志敏; 赵劲松
Original assignee: GUDI PLASTIC ELECTRIC APPLIANCE CO Ltd CHONGQING
Current assignee: GUDI PLASTIC ELECTRIC APPLIANCE CO Ltd CHONGQING
Priority date: 2001-03-29
Filing date: 2001-03-29
Publication date: 2002-01-16
Anticipated expiration: 2011-03-29

Abstract

The utility model relates to a hydrophilic internal wall spiral noise reducer used for a U-PVC drainpipe and comprises a pipeline 1, a flow deflector 2, an inspection hole 3 and a hydrophilic layer 4 and is characterized in that the coarse hydrophilic layer 4 is covered on an inner wall of the pipeline 1 and an upstream face of the flow deflector 2. The hydrophilic layer 4 is arranged in the utility model, so that the noise reduction effect is better than rotational flow noise reduction without the hydrophilic layer, when the water flows in attachment to the wall, more particularly when the amount of drainage is small.

Description

Hydrophilic spiral inner wall denoiser

The utility model relates to the intrasystem denoiser of a kind of building internal drainage pipeline, in particular for the hydrophilic spiral inner wall denoiser of U-PVC gutter.

The U-PVC gutter is extensively used by people because of characteristics such as its light weight, inexpensive, wear-resisting and easy installations at present.But its soundproof effect is poorer than traditional cast-iron pipe, generally will exceed 2-4dB, influences people's operate as normal and life.The reason of discovering U-PVC gutter soundproof effect difference through us is that U-PVC gutter tube wall is smooth and hydrophobic, and water does not produce attached jet and moves when flowing, and noise reduction is weaker, and is all the more so when particularly discharge is low.

The purpose of this utility model provides a kind of hydrophilic spiral inner wall denoiser that can reduce noise.

Concrete scheme of the present utility model is: comprise pipeline, flow deflector, inspection eye, it is characterized in that: be coated with coarse hydrophilic layer on the upstream face of the inwall of pipeline and flow deflector.

The employing such scheme is easy to manufacture, and cost is low.When the current direction current downflow, the attached wall rotational flow of hydrophilic flow deflector guiding current, flow downward along tube wall, reduced water velocity, reduced the overflow resistance, keep central gas stream up/down perforation in the standpipe, in pipe, form unimpeded air column, reduced pipe internal pressure differences and pressure oscillation, improved the standpipe ventilation capacity, reduce capacity, reduced noise significantly.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is a front view of the present utility model;

Fig. 2 is the vertical view of Fig. 1.

From Fig. 1, Fig. 2 as can be known, the utility model mainly is made up of pipeline 1, flow deflector 2, inspection eye 3, hydrophilic layer 4, and architectural feature of the present utility model is: be coated with coarse hydrophilic layer 4 on the upstream face of the inwall of pipeline 1 and flow deflector 2.

Hydrophilic layer 4 of the present utility model can select for use the particulate inorganic water wetted material to be coated on the upstream face of the inwall of pipeline 1 and flow deflector 2.The installation of this utility model and common pipe fitting are identical, promptly use the U-PVC adhesive specially bonding.Preferably each floor is installed a denoiser, and effect is the most desirable, and noise reduction is in 2-4dB.

Claims

1. a hydrophilic spiral inner wall denoiser comprises pipeline (1), flow deflector (2), inspection eye (3), it is characterized in that: be coated with coarse hydrophilic layer (4) on the upstream face of the inwall of pipeline (1) and flow deflector (2).