Indoor noise reducer for ocean passenger ship

A technology for noise reduction and passenger ships, applied to the components of pumping devices for elastic fluids, ship construction, ship parts, etc., to achieve the effects of reducing noise, quiet operation, and reducing wind noise

Active Publication Date: 2020-12-11
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide an indoor noise reduction device for ocean-g

Method used

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  • Indoor noise reducer for ocean passenger ship
  • Indoor noise reducer for ocean passenger ship
  • Indoor noise reducer for ocean passenger ship

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Embodiment Construction

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1-5 As shown, the indoor noise reduction device for ocean-going passenger ships of the present invention includes a noise reduction ventilation duct 1, and the noise reduction ventilation duct 1 consists of an outer cylinder 18, an inner cylinder 19, and a sound absorption filled between the outer cylinder 18 and the inner cylinder 19. The foam 20 is formed, one end of the noise reduction ventilation duct 1 is connected with an air inlet duct 2, the air inlet hopper 2 is connected with the noise reduction ventilation duct 1 by fixing bolts 3, and the air inlet hopper 2 is close to the noise reduction ventilation duct 1. One end of the noise reduction ventilation duct 1 is connected with a No. 1 ventilation pipe 6, the surface of the No. 1 ventilation pipe 6 is evenly provided with a number of No. 1 noise reduction holes 7, and the No. 1 ventilation pi...

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Abstract

The invention discloses an indoor noise reducer for an ocean passenger ship. The indoor noise reducer comprises a noise-reduction ventilating pipeline which consists of an outer barrel, an inner barrel and sound-absorbing foam filled between the outer barrel and the inner barrel, wherein one end of the noise-reduction ventilating pipeline is connected to an air inlet hopper which is connected to the noise-reduction ventilating pipeline through a fixed bolt, and one end, close to the noise-reduction ventilating pipeline and in the noise-reduction ventilating pipeline, of the air inlet hopper isconnected to a ventilating tube I. Sound-absorbing foam can be filled between the outer barrel and the inner barrel arranged in the noise-reduction ventilating pipeline, thereby greatly reducing windnoises in a pipeline; a plurality of partition plates I, partition plates II and partition plates III, which are made of a centrifugal glass wool, are arranged in the noise-reduction ventilating pipeline to disperse and buffer gas flow to certain extent; and an impeller centrifugal fan is connected to a fixed frame through a damping mechanism such that noises caused by vibrations of a fan can bereduced, thereby making operation of the fan more silent.

Description

technical field [0001] The invention belongs to the field of facility protection for ocean-going passenger ships, in particular to an indoor noise reduction device for ocean-going passenger ships. Background technique [0002] The so-called ocean-going passenger ship actually refers to the tourist passenger ship sailing in the ocean. For the ocean-going passenger ship, the passenger capacity of the ocean-going passenger ship is very large, so it is necessary to have larger ventilation facilities to meet the internal facilities of the ocean-going passenger ship and For the needs of tourists, centrifugal fans are used for ventilation. Centrifugal fans are widely used for ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings. The noise is generally caused by the swirling flow generated by the flowing air inside the fan, which causes the fan casing to vibrate and generate noise, thus affecting the comfortable environmen...

Claims

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Application Information

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IPC IPC(8): B63J2/10B63J2/04F04D29/66
CPCB63J2/10B63J2/04F04D29/663F04D29/668
Inventor 周琦黄毅铭吴传伟叶超
Owner SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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