Float-type drop energy-eliminating noise-reducing device

A floating, noise-reducing technology, which is applied in the direction of sound-emitting devices and instruments, can solve problems such as noise pollution, secondary noise, and small meshes, and achieve stable noise reduction effects and reduce water-falling noise
CN100533033CInactive Publication Date: 2009-08-26常州金坛塑料厂
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
常州金坛塑料厂
Publication Date
2009-08-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

A floating energy dissipation and noise reduction device, which is composed of a noise reduction honeycomb panel, a supporting frame, and a floating body. The noise reduction honeycomb panel is arranged on the supporting frame, and the floating body is arranged under the supporting frame. Placed in the pool of the cooling tower, the distance between the lower end of the noise-reducing honeycomb panel and the water surface of the pool is 100-110 mm; the noise-reducing honeycomb panel is composed of several pieces of PVC plastic molding boards, and there are several open ends on it. Special-shaped pipes, each special-shaped pipe is provided with a collection pipe, an inclined-surface noise reduction pipe, and a curved energy-dissipating pipe from top to bottom, and multi-stage energy-dissipating grooves and shunt grooves are arranged on the curved surface energy-dissipating pipe; the supporting frame is made of several FRP I-shaped Profiles, connecting rods, and spacers are connected into a frame structure; since the device is placed in the pool of the cooling tower, the distance between the lower end surface of the noise-reducing honeycomb panel and the water surface of the pool is a constant value, which can effectively prevent the secondary noise of falling water generated, and the noise reduction effect is stable.
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Description

technical field

[0001] The invention relates to a falling water noise reducing device, in particular to a falling water noise reducing device in a cooling tower of a power plant. Background technique

[0002] With the rapid development of the power industry and the continuous improvement of environmental protection requirements, the State Power Corporation has proposed specific noise indicators for newly-built cooling towers. The noise must meet the relevant national standards, and the construction of cooling towers without noise reduction facilities is not allowed. For existing cooling towers, noise reduction technical transformation must also be carried out within a time limit, otherwise production must be stopped for rectification, and the noise will not be accepted if it does not meet the standard. At present, most of the cooling towers in various power plants use fiber mesh noise reduction pads to reduce noise. Falling water directly hits the noise reduction pads. The n...

Claims

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