Noise reducing plate for secondary cooling tower falling water
A technology of noise-reducing panels and cooling towers, applied in the direction of sound-generating devices and instruments, which can solve the problems of bottom noise reduction, lack of falling water energy dissipation, secondary noise reduction structure, and large secondary noise, etc., to achieve the effect of reducing impact sound
Inactive Publication Date: 2010-12-08
常州金坛塑料厂
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[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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[0015] The present invention is described in detail below in conjunction with accompanying drawing:
[0016] The second-generation cooling tower falling water noise reduction board, as attached Figure 1~4 As shown, it is a honeycomb layer 1 composed of several formed plastic plates, and several muffler pipes 2 are evenly formed on the honeycomb board layer 1. Each muffler pipe 2 has a structure of three parts and five sections. From top to bottom, there are vertical section 11, first-stage inclined section 12, second-stage inclined section 13, reverse return section 14 and deflector curved surface section 15. A number of micropores 16 are evenly provided on the return section 14, and corrugated grooves 17 with energy dissipation and deceleration are provided on the secondary inclined section 13 and the reverse return section 14. On the secondary inclined section 13, The corrugated groove 17 is arranged on its front, and on the reverse backflow section 14, the corrugated groo...
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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 andfurther 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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IPC IPC(8): F28C1/10
Inventor 李罗中周根娣王红美姜晓荣
Owner 常州金坛塑料厂