亚洲色成人网站www永久下载,成 人 综合 亚洲另类,免费人成在线观看视频高潮,中文在线天堂网www,国模雨珍浓密毛大尺度150p,av狠狠色丁香婷婷综合久久,无码av中文一二三区,麻豆精产国品

Systems and Products

Efficient and energy-saving, safe and reliable, intelligent control, green and low-carbon

Home > Systems and Products > Ventilation > Product customization > Marine accessories
Business Consulting
  • DN series efficient silencer

    At present, ship air conditioning and ventilation systems mostly use centralized air supply all air systems to achieve cabin air environment control. There are two main sources of noise: one is the noise generated by the operation of (combination) air conditioners, ventilators, and other equipment; The second is the regenerative noise generated by the airflow in the air ducts and equipment, including the noise generated by the air ducts and air vents. Therefore, noise control needs to be approached from two aspects: on the one hand, optimizing system design to reduce noise from the sound source; On the other hand, measures such as sound absorption and noise reduction are taken to control the propagation of noise, which to some extent attenuates the noise to a lower value. In the air conditioning and ventilation system, the air vents require airflow to pass through. In this case, vibration isolation and noise reduction schemes are no longer sufficient at certain locations. In this case, we usually install silencers on the ventilation ducts to reduce noise. Josun air conditioner is a specialized high-efficiency muffler developed according to the GB/T 25516-2010 standard for various ventilation systems. It has the characteristics of good noise reduction effect, low air resistance loss, and easy installation. Widely used in various equipment rooms, garages, ships, and offshore platforms.


Product Features

Product features:

Model Description:

“DN”:  muffler

1600 "inner diameter size

Composition: The muffler consists of a muffler shell and a muffler unit, with a muffler unit channel in the middle. The muffler unit channel is made of muffler orifice plate, ultra-fine fiberglass cotton, and fiberglass hole cloth.

Product Features:

The DN series efficient silencer is a silencing device that attenuates or prevents sound propagation while allowing airflow to pass through. With the sound absorption effect of sound-absorbing materials or structures, the noise propagating along the pipeline is attenuated with increasing distance, and the sound energy is absorbed and converted into heat energy, achieving the purpose of silencing and reducing airflow noise in machinery.

The DN series muffler is a ventilation duct muffler, which is of the acoustic resistant flow type; It has a sound-absorbing and noise reducing effect on high and medium frequency noise, suitable for various cabins.

Product advantages:

Our company's efficient silencer can be made into circular or square shapes, which can be used in conjunction with fans. It has good ventilation flow, low resistance, and good noise reduction effect. It can be installed vertically or horizontally. The silencing unit has ideal silencing effect over a wide frequency range, good aerodynamic characteristics, and special design for the flow guide and orifice plate, resulting in minimal resistance loss.


Basic parameters:

  • DN300-600 noise reduction volume: 4-6 dB (A)

  • DN700-1000 noise reduction volume: 6-8 dB (A)

  • DN1200-1600 noise reduction volume: 8-10 dB (A)

  • The shell is made of ordinary steel plate rolled, or stainless steel or other materials can be used according to user requirements;

  • The sound-absorbing board is made by stamping and rolling ordinary steel plates, and can also be made of materials such as stainless steel according to user requirements;

  • The sound-absorbing cotton is made of ultra-fine fiberglass cotton

  • Fiberglass cloth is wrapped around the sound-absorbing cotton, which is conducive to fixing the sound-absorbing cotton and preventing it from scattering.


Application scenarios:

Widely used in various types of passenger ships, cargo ships, warships, and offshore oil platforms.


Related products
System application
Online inquiry
  • *

    Name:

  • *

    Tel:

  • *

    Email:

  • *

    Your location:

  • Your company name:

  • *

    Verification code:

    Change
  • *

    Message:

Submit

華東

  • Shanghai Brander
  • Zhejiang Brander
  • Address:Room 1021-1022, Building1, No.100 Jinyu Road,Shanghai,China
  • Fax:+86-21-5890 6852
  • Tel:+86-137 0165 22771+86-21-5890 6856
  • Email:wang_wei@josun.cn
  • Address:Room 402, Building 6, Unit 1, Shuyuan Lane, Renmin North Road, Zhoushan City, Zhejiang Province
  • Fax:+86-135 6777 1890
  • Tel:+86-135 6777 1890
  • Email:xu_haijian@josun.cn

North China

  • Tianjin Brander
  • Address:Room 601,Building 10,Ziyunyuan,No.3 Xingang, Tanggu District Tianjin
  • Fax:+86-22-2530 0727
  • Tel:+86-138 2027 53881+86-22-2530 0727
  • Email:yuan_jianxin@josun.cn

South China

  • Guangzhou Brander
  • Address:Room 1902,Building A,NO,185,ChanggangMiddle Road,Haizhu District,Guangzhou
  • Fax:+86-20-3433 3496
  • Tel:+86-139 0240 2804/+86-20-3433 3496
  • Email:wang_aibing@josun.cn

Abroad

  • National Service Phone
  • Tel:
  • Email: commerce@josun.cn

Copyright 2017 JIANGSU JOSUN AIR CONDITIONER CO., LTD Copyright 蘇ICP備15011978號-1

About Us Contact Us

主站蜘蛛池模板: 99久久无色码中文字幕人妻 成人无码午夜在线观看 午夜视频在线观看免费观看1 国产aⅴ人妻互换一区二区 国产精品久久久久久久久软件 无码av高潮喷水无码专区线 精品高潮呻吟99av无码视频 最新国产在线拍揄自揄视频 国产成人精品一区二区3 色哟哟最新在线观看入口 好男人免费影院www神马 97欧美精品系列一区二区 天天做天天爱天天做天天吃中 在线视频免费无码专区 国产午夜成人无码免费看 免费无码a片一区二三区 亚洲欧美中文字幕在线一区 一本色道久久东京热 狠狠色噜噜狠狠色综合久 亚洲大尺度无码无码专线 国产吃奶在线观看 丰满人妻无码∧v区视频 亚洲精品中文字幕制 青草草97久热精品视频 人人婷婷人人澡人人爽 婷婷丁香五月激情综合在线 黑人巨大无码中文字幕无码 蜜臀亚洲精品国产aⅴ综合第一 国产99视频精品专区 免费精品国偷自产在线在线 久久丁香五月天综合网| 无码精品人妻一区二区三区98| 午夜片无码区在线观看视频| 国产精品人成视频免| 国产无套粉嫩白浆在线| 好大好猛好爽好深视频免费| 欧美兽交xxxx×视频| 亚洲国产一区二区三区亚瑟| 不卡高清av手机在线观看| 亚洲熟妇自偷自拍另欧美| 97人妻中文字幕总站|