Noise reducing plate for secondary cooling tower falling water

Abstract

In the falling water noise reducing plate for cooling tower, each silencing pipe includes successively connected five sections, one vertical section, one first inclining section, one second inclining section, one turning reflux section and one stretching curve section. The vertical section in the upper part can guide falling water without noise; the two inclining sections in the middle part can silence water falling through slant friction and reduce water flow speed; and the turning reflux section and the stretching curve section in the lower part can dissipate the energy of falling water and further lower the noise of falling water by means of pores and corrugated grooves and sound wave interference. The present invention has ideal noise reducing effect.

Description

technical field [0001] The invention relates to a cooling tower water falling noise reduction device used in a power plant, in particular to a cooling tower water falling noise reducing plate. Background technique [0002] At present, the noise reducer for cooling tower falling water used in power plants has the best noise reduction effect is the "cooling tower falling water noise reducer" applied by the applicant in 2001, the patent number is 01230431.X, which is open at both ends The honeycomb noise-reduction board formed by the oblique arrangement of the pipes adopts the principle of slope noise reduction, so that the falling water contacts the slope of the honeycomb board, and its noise reduction effect is greatly improved compared with the conventional mesh noise-reduction pad. This kind of falling water noise reducer has become the first choice for noise reduction transformation of power plant cooling towers today. It represents the highest level of noise reduction pro...

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Problems solved by technology

[0002] At present, the cooling tower falling water noise reducer used in power plants has the best noise reduction effect, which is the "Cooling Tower Falling Water Noise Reducer" applied by the applicant in 2001. The patent number is 01230431.X, which is open at both ends. The honeycomb-shaped noise-reducing board composed of obliquely arranged tubes adopts the principle of inclined-plane noise reduction, so that the falling water contacts the slope of the honeycomb board, and its noise-reducing effect is greatly improved compared with the conventional mesh-shaped noise-reducing pad. This kind of falling water noise reducer has become the first choice for noise reduction transformation of power plant cooling towers today. It represents the highest level of noise reduction products today, but there are still some defects in the actual use process. The honeycomb noise reduction board is in the product structure It is not reasonable enough, it lacks falling water energy dissipation and secondary noise reduction structure, the secondary noise generated is still relatively large, and the bottom noise cannot be reduced to the maximum extent

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